CN111843480B - LED display screen bottom shell assembly equipment and production process thereof - Google Patents
LED display screen bottom shell assembly equipment and production process thereof Download PDFInfo
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- CN111843480B CN111843480B CN202010784282.4A CN202010784282A CN111843480B CN 111843480 B CN111843480 B CN 111843480B CN 202010784282 A CN202010784282 A CN 202010784282A CN 111843480 B CN111843480 B CN 111843480B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 125
- 230000007306 turnover Effects 0.000 claims abstract description 61
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- WBHQEUPUMONIKF-UHFFFAOYSA-N PCB180 Chemical compound C1=C(Cl)C(Cl)=CC(Cl)=C1C1=CC(Cl)=C(Cl)C(Cl)=C1Cl WBHQEUPUMONIKF-UHFFFAOYSA-N 0.000 description 2
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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Abstract
The invention discloses LED display screen bottom shell assembly equipment and a production process thereof, wherein the equipment comprises a frame, a bottom shell feeding assembly line, an assembly platform, a PCB receiving platform, a PCB feeding conveying line, a PCB turnover mechanism, a mechanical arm clamping mechanism and a clamp reflow conveying line; the bottom shell feeding assembly line, the assembly platform, the PCB feeding conveying line, the PCB overturning mechanism, the mechanical arm clamping mechanism and the clamp reflow conveying line are all arranged at the upper end of the frame. According to the invention, the bottom shell feeding assembly line, the assembly platform, the PCB receiving platform, the PCB feeding conveying line, the PCB overturning mechanism and the clamp reflow conveying line are arranged according to the process requirement, and the mechanical arm clamping mechanism is used for conveying the bottom shell and the PCB between the mechanisms, so that the whole assembly process is completely and automatically completed, and the production efficiency is high.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to LED display screen bottom shell assembly equipment and a production process thereof.
Background
At present, in the production process of an LED display screen, the assembly of a PCB and a bottom shell is mostly completed by manpower, and the following defects exist: (1) The manual operation is easy to fatigue operation, and the quality problem of PCB assembly or product placement is caused; (2) In the operation process, accessories are easy to collide, so that the quality of products is improved; (3) Personnel walk off duty, equipment is in standby state, and production efficiency is low, and it is urgent to design a device capable of realizing automatic assembly.
Disclosure of Invention
The invention aims to provide LED display screen bottom shell assembly equipment with high automation degree and high production efficiency.
The invention further aims to provide a production process of the LED display screen bottom shell assembly equipment with reasonable design.
In order to achieve the above object, the technical solution of the present invention is:
The invention relates to LED display screen bottom shell assembly equipment which comprises a frame, a bottom shell feeding assembly line, an assembly platform, a PCB receiving platform, a PCB feeding conveying line, a PCB turnover mechanism, a mechanical arm clamping mechanism and a clamp reflow conveying line, wherein the frame is arranged on the bottom shell feeding assembly line;
The bottom shell feeding assembly line, the assembly platform, the PCB receiving platform, the PCB feeding conveying line, the PCB overturning mechanism, the mechanical arm clamping mechanism and the clamp reflow conveying line are all arranged on the frame, a first station of the mechanical arm clamping mechanism is connected with a discharge end of the bottom shell feeding assembly line, and a second station of the mechanical arm clamping mechanism is connected with the assembly platform; the discharge end of the PCB feeding conveying line is connected with the first station of the PCB receiving platform, the second station of the PCB receiving platform is connected with the feed end of the clamp reflow conveying line, the feed station of the PCB turning mechanism is connected with the first station of the PCB receiving platform, the discharge station of the PCB turning mechanism is connected with the third station of the mechanical arm clamping mechanism, and the fourth station of the mechanical arm clamping mechanism is connected with the assembly platform so as to assemble the PCB on the bottom shell.
The bottom shell feeding assembly line comprises a width guide rail, a sliding conveyor belt frame, a fixed conveyor belt frame, a bottom shell conveyor belt, a width adjusting mechanism, a feeding frame, a lifting motor, a lifting belt pulley group, a lifting screw rod, a lifting guide rail and a lifting table; the bottom surface of the fixed conveyor belt rack is fixed on the frame and is parallel to the sliding conveyor belt rack, two belts in the bottom shell conveyor belt are respectively arranged on the sliding conveyor belt rack and the fixed conveyor belt rack in parallel, and a width adjusting mechanism is arranged on the bottom shell conveyor belt; the feeding frame is vertically fixed on the frame and is positioned at one end of the sliding conveyor belt frame and one end of the fixed conveyor belt; the bottom shell conveying belt comprises two belts, a belt motor, a belt shaft, a motor belt pulley group and a plurality of belt pulleys; the two belts are respectively wound on the plurality of belt pulleys, the belt motor is fixedly arranged on the frame, the belt motor is connected with the plurality of belt pulleys through a belt shaft and drives the plurality of belt pulleys to rotate, and the belt shaft is rotatably arranged on the width adjusting mechanism; the two bottom shell conveying belts are arranged on the sliding conveying belt frame and the fixed conveying belt frame and are mutually connected; a stop block mechanism is arranged at the joint of the two bottom shell conveying belts and comprises a stop block cylinder and a stop block, the cylinder body of the stop block cylinder is fixedly arranged on the width adjusting mechanism, the rod end of a piston rod of the stop block cylinder is connected with the outer end of the stop block, and the inner end of the stop block is close to the bottom shell conveying belt; the width adjusting mechanism comprises a hand wheel fixing seat, an adjusting hand wheel, an adjusting screw rod and two guide plates; the hand wheel fixing seat is fixed on the frame, the adjusting hand wheel is fixed at the outer end of the adjusting screw rod, the middle part of the adjusting screw rod is respectively screwed into threaded holes of two guide plates, the threaded directions of the threaded holes of the two guide plates are opposite, the two guide plates are respectively and fixedly arranged on the sliding conveyor belt frame and the fixed conveyor belt frame, and the two guide plates are oppositely arranged and respectively and slidably connected with belt shafts in the bottom shell conveyor belt; the lifting motor is arranged at the bottom of the upper material frame, an output shaft of the lifting motor is connected with the lower end of the lifting screw rod through a lifting belt pulley group, the lifting screw rod is rotatably arranged on the upper material frame, one end of the lifting table is in threaded connection with the middle part of the lifting screw rod through a screw rod nut and is in sliding connection with the lifting guide rail, and the lifting guide rail is fixedly arranged on the upper material frame.
The assembly platform comprises an assembly bottom plate, an assembly plate sliding rail, two conveyor belt assembly plates, an assembly conveying assembly, a width motor, a width belt pulley group, a width screw rod, a positioning cylinder, a positioning block, a limiting cylinder and a limiting block;
the assembly bottom plate is fixed on the frame, the mounting plate sliding rail is fixed on the assembly bottom plate, one conveying belt mounting plate is slidingly connected to the mounting plate sliding rail, the other conveying belt mounting plate is fixedly arranged on the assembly bottom plate, the two conveying belt mounting plates are opposite to each other, and the assembly conveying assembly is arranged on the conveying belt mounting plate and the frame; the assembly conveying assembly comprises two assembly belts, an assembly belt motor, an assembly belt shaft, two assembly belt pulleys and an assembly belt pulley group, wherein the two assembly belts are respectively wound on the two groups of belt pulleys, the assembly belt motor is fixedly installed on an assembly bottom plate, an output shaft of the assembly belt motor is connected with the assembly belt shaft through the assembly belt pulley group, the assembly belt shaft is connected with the two assembly belt pulleys and drives the two assembly belt pulleys to rotate, and the assembly belt shaft is rotatably installed on a conveying belt installation plate; the width motor is fixedly arranged on the assembly bottom plate, an output shaft of the width motor is connected with one end of the width screw rod through a width belt pulley group, the middle part of the width screw rod is in threaded connection with one conveyor belt mounting plate, and the other end of the width screw rod is rotatably arranged on the other conveyor belt mounting plate; the cylinder body of the positioning cylinder is fixed on the conveyor belt mounting plate, the rod end of a piston rod of the positioning cylinder is connected with the positioning block, the positioning block transversely extends to the assembly conveying assembly and is used for laterally positioning the bottom shell of the assembled PCB, the cylinder body of the limiting cylinder is fixed on the assembly bottom plate, the rod end of the piston rod of the limiting cylinder is connected with the limiting block, and the limiting block is propped against the discharge end of the assembly conveying assembly and is used for limiting the moving direction of the bottom shell of the assembled PCB.
The PCB board material receiving platform comprises a material receiving guide rail, a material receiving lifting seat, a material receiving lifting motor, a material receiving screw rod, a material receiving motor, a material receiving belt pulley group, a material receiving conveyer belt, a material receiving table and a material receiving table cylinder; the material receiving guide rail is vertically arranged on the frame, the material receiving lifting seat is slidingly connected on the material receiving guide rail, the inner end of the material receiving lifting seat is in threaded connection with the material receiving screw rod through a screw rod nut, the material receiving screw rod is rotatably arranged on the frame and is parallel to the material receiving guide rail, the material receiving lifting seat is driven to move up and down, the material receiving motor is arranged on the material receiving lifting seat, an output shaft of the material receiving motor is connected with the material receiving conveyer belt through a material receiving belt pulley group, and the material receiving conveyer belt is arranged on the top surface of the material receiving lifting seat; the cylinder body of the receiving platform cylinder is fixed on the bottom surface of the middle part of the receiving lifting seat, and the rod end of the piston rod of the receiving platform cylinder is upwards connected with the bottom surface of the receiving platform and can upwards jack up the receiving platform.
The PCB feeding conveying line comprises two feeding chains, two chain wheel sets, a feeding motor and a chain wheel shaft; the two chains are respectively connected to the two chain wheel groups in a winding mode, the feeding motor is fixedly arranged on the frame, the feeding motor is connected with the chain wheel groups through chain wheel shafts, the chain wheel groups are driven to rotate, and the chain wheel shafts are rotatably arranged on the frame.
The PCB feeding conveying line further comprises a pressing cylinder and a pressing block; the cylinder body of the material pressing cylinder is arranged on the frame, the rod end of a piston rod of the material pressing cylinder is downwards connected with a lower pressing block, and the lower pressing block is positioned right above the feeding chain.
The PCB turnover mechanism comprises a cylinder seat, a turnover cylinder, a turnover seat, clamping jaws, a rack, a turnover guide rail, a driving and reversing belt and a driving and reversing motor; the cylinder seat is fixed on the frame, the cylinder body of the turnover cylinder is fixedly arranged on the cylinder seat, the rod end of the piston rod of the turnover cylinder is connected with one end of the turnover seat, the turnover seat is rotatably arranged on the cylinder seat, and the clamping jaw is arranged on the turnover seat; the frame is also provided with a supporting seat, the supporting seat is fixed on the frame, and the other end of the overturning seat is rotatably arranged on the supporting seat; the turnover guide rail is fixedly arranged on the frame, the cylinder seat is slidingly connected on the turnover guide rail, the end part of the cylinder seat is clamped on the advancing and retreating belt, the advancing and retreating belt is arranged on the frame, one end of the advancing and retreating belt is connected with an output shaft of the advancing and retreating motor, and the advancing and retreating motor is arranged on the frame; the two turnover guide rails are respectively and fixedly arranged on two sides of the frame in parallel; the turnover guide rail on one side is connected with a supporting seat in a sliding way, and the other end of the turnover seat is rotatably arranged on the supporting seat.
The mechanical arm clamping mechanism comprises a mechanical arm, a supporting seat, a clamping cylinder, two clamping plates, a joint opening, a sucker, a clamping lifting cylinder and a lifting seat; the mechanical arm is a four-axis mechanical arm, the supporting seat is fixedly arranged at the free end of the mechanical arm, the cylinder body of the clamping cylinder is fixed on the top surface of the lower end of the supporting seat, the two clamping plates are respectively fixed on the rod end of the piston rod of the clamping cylinder and are arranged opposite to each other, the joint opening is fixed on the bottom surface of the lower end of the supporting seat, the joint opening is positioned in the middle of the two clamping plates, the sucker is fixedly arranged on the joint opening, and the sucker is communicated with an external air source through an air port on the joint opening; the cylinder body of the clamping lifting cylinder is fixedly arranged on the supporting seat, the rod end of the piston rod of the clamping lifting cylinder is connected with the middle part of the lifting seat, the lower part of the lifting seat is in clearance sleeve joint with the middle part of the supporting seat, and the cylinder body of the clamping cylinder is fixed on the side surface of the lower end of the lifting seat and is positioned on the top surface of the lower end of the supporting seat, so that the two clamping plates are far away from and close to the lower end of the supporting seat under the driving of the clamping lifting cylinder; the outer surface of the clamping lifting cylinder is provided with a guide rail, and the upper part of the lifting seat is slidingly connected to the guide rail.
The invention relates to a production process of LED display screen bottom shell assembly equipment, which comprises the following steps:
(1) Placing the PCB on a tray, and conveying the PCB to a discharge end for waiting through a PCB feeding conveying line;
(2) Conveying the stacked bottom shells from a feeding end to a discharging end of a bottom shell conveying belt through a bottom shell feeding assembly line, and detecting whether the bottom shells are arranged on the lifting table or not by an inductor, and waiting for the bottom shells if the bottom shells are arranged on the lifting table; if not, the whole stack of bottom shells are sent to a lifting table by a bottom shell conveying belt, whether the bottom shells are in place or not is detected by a signal detection device, the whole stack of bottom shells are lifted to a material taking position by a lifting motor, one bottom shell is clamped by two clamping plates of a mechanical arm clamping mechanism, the bottom shells are moved to a visual detection position, whether the direction of the bottom shells is correct is detected and judged by a visual camera, and if the left end position and the right end position of the bottom shells are reversely placed, the mechanical arm rotates 180 degrees with the bottom shells; if the bottom shell placement direction is correct, not rotating; the mechanical arm clamping mechanism sends the bottom shell to the assembly platform; after the bottom shell is taken out, a lifting table in a bottom shell feeding assembly line is quickly lowered to a position, a bottom shell conveying belt starts to feed materials, the materials are fed to the position, the lifting table is lifted up by the bottom shell, and bottom shell feeding is performed again;
(3) Conveying the PCB mounted on the tray in the step (1) to a PCB receiving platform, lifting the first PCB upwards by a group of receiving platform cylinders on the inner side through the receiving platform, grabbing a signal plugging seat of the PCB by clamping jaws on a PCB overturning mechanism, grabbing the PCB by clamping jaws, descending the receiving platform of the PCB receiving platform, overturning the PCB by 180 degrees by the PCB overturning mechanism through the overturning cylinder, and enabling the back of the PCB to face upwards;
(4) The four-axis mechanical arm clamping mechanism sucks the PCB through the sucker, the clamping jaw on the PCB overturning mechanism is loosened, the mechanical arm clamping mechanism sucks the PCB to move to the position above the bottom shell of the assembly platform, the position of the PCB is visually detected, the position of the PCB at the moment is read, the position of the PCB is preset in the comparison system, the position of the mechanical arm is corrected, and the PCB is placed on the bottom shell;
(5) When the bottom shell is taken and placed on the assembly platform by the mechanical arm clamping mechanism, the bottom shell is positioned by the positioning blocks and the limiting blocks on the assembly platform, so that the assembly precision of products is ensured, the corrected plates are assembled on the bottom shell by the mechanical arm clamping mechanism, after the assembly is finished, two clamping plates of the mechanical arm clamping mechanism are loosened under the driving of the clamping cylinder, the assembly conveying assembly is started, and the assembled products are conveyed to a rear-stage station for locking screws;
(6) The mechanical arm clamping mechanism is used for taking and loading the PCB on the tray onto the bottom shell, the empty tray descends to the clamp reflow conveying line through the PCB receiving platform, and the clamp reflow conveying line conveys the empty tray to the discharge end for recycling.
In the step (3), two groups of material receiving platforms and material receiving platform cylinders are arranged, after a first PCB in a tray is taken away by a mechanical arm clamping mechanism, a group of material receiving platform cylinders on the outer side jack up a second PCB upwards through the material receiving platforms, a driving and reversing motor of a PCB turnover mechanism drives a cylinder seat to move outwards through a driving and reversing belt to drive a clamping jaw to move to the upper side of the second PCB, a signal plugging seat of the PCB is clamped, the clamping jaw is clamped to the PCB, the material receiving platform of the PCB material receiving platform descends, and the PCB turnover mechanism turns over the PCB through the turnover cylinder so that the back of the PCB faces upwards; repeating the action of the step (4).
After the scheme is adopted, the device comprises a frame, a bottom shell feeding assembly line, an assembly platform, a PCB receiving platform, a PCB feeding conveying line, a PCB overturning mechanism, a mechanical arm clamping mechanism and a clamp reflow conveying line; the bottom shell feeding assembly line, the assembly platform, the PCB receiving platform, the PCB feeding conveying line, the PCB overturning mechanism and the clamp reflow conveying line are arranged according to the process requirement, the mechanical arm clamping mechanism is used for conveying the bottom shell and the PCB between the mechanisms, the whole assembly process is completed completely and automatically, the assembly is stable, manual operation is not needed, and the production efficiency is high.
The invention will be further described with reference to the drawings and the specific examples.
Drawings
FIG. 1 is a right-hand isometric view of the present invention;
FIG. 2 is a left-hand isometric view of the present invention;
FIG. 3 is an isometric view of a bottom shell loading line of the present invention;
FIG. 4 is an isometric view of a loading bay in a bottom shell loading line of the present invention;
FIG. 5 is an isometric view of a stop mechanism in the bottom shell loading line of the present invention;
FIG. 6 is an isometric view of the mounting platform of the present invention;
FIG. 7 is a top view of the mounting platform of the present invention;
FIG. 8 is a top isometric view of the PCB receiving platform of the present invention;
Fig. 9 is a bottom isometric view of the PCB panel receiving platform of the present invention;
FIG. 10 is a top isometric view of the PCB board feed conveyor line of the present invention;
FIG. 11 is a left isometric view of the PCB turnover mechanism of the present invention;
FIG. 12 is a right-hand isometric view of the PCB turnover mechanism of the present invention;
FIG. 13 is an isometric view of a robotic arm gripping mechanism of the present invention;
FIG. 14 is a bottom isometric view of the robotic arm gripping mechanism of the present invention;
fig. 15 is an isometric view of a gripping portion of the robotic arm gripping mechanism of the present invention.
Detailed Description
As shown in fig. 1 and 2, the invention relates to an assembly device for a bottom shell of an LED display screen, which comprises a frame 1, a bottom shell feeding assembly line 2, an assembly platform 3, a PCB receiving platform 4, a PCB feeding conveying line 5, a PCB turnover mechanism 6, a mechanical arm clamping mechanism 7 and a clamp reflow conveying line 8.
The bottom shell feeding assembly line 2, the assembly platform 3, the PCB receiving platform 4, the PCB feeding conveyor line 5, the PCB overturning mechanism 6, the mechanical arm clamping mechanism 7 and the clamp reflow conveyor line 8 are all arranged on the frame 1, a first station of the mechanical arm clamping mechanism 7 is connected with a discharge end of the bottom shell feeding assembly line 2, and a second station of the mechanical arm clamping mechanism 7 is connected with the assembly platform 3 so as to place the bottom shell on the assembly platform 3; the discharge end of the PCB feeding conveying line 5 is connected with the first station of the PCB receiving platform 4, the second station of the PCB receiving platform 4 is connected with the feed end of the clamp reflow conveying line 8, the feed station of the PCB turning mechanism 6 is connected with the first station of the PCB receiving platform 4, the discharge station of the PCB turning mechanism 6 is connected with the third station of the mechanical arm clamping mechanism 7, and the fourth station of the mechanical arm clamping mechanism 7 is connected with the assembly platform 3 so as to assemble the PCB on the bottom shell on the assembly platform 3.
As shown in fig. 3-5, the bottom shell feeding assembly line 2 includes a width guide rail 21, a sliding conveyor belt frame 22, a fixed conveyor belt frame 23, a bottom shell conveyor belt 24, a width adjusting mechanism 25, a feeding frame 26, a lifting motor 27, a lifting belt pulley set 28, a lifting screw 29, a lifting guide rail 210, a lifting table 211, and a stop block mechanism 212; the width guide rail 21 is fixed at the bottom of the frame 1, the bottom surface of the sliding conveyor belt frame 22 is slidingly connected to the width guide rail 21, the bottom surface of the fixed conveyor belt frame 23 is fixed on the frame 1 and is parallel to the sliding conveyor belt frame 22, two belts in the bottom shell conveyor belt 24 are respectively and parallelly arranged on the sliding conveyor belt frame 22 and the fixed conveyor belt frame 23, and the bottom shell conveyor belt 24 is provided with a width adjusting mechanism 25; the loading frame 26 is vertically fixed to the frame 1 and is located at one end of the slide conveyor frame 22 and the fixed conveyor frame 23.
The bottom case conveyer 24 includes two belts 241, a belt motor (not shown), a belt shaft 243, a motor belt pulley set 244, and a plurality of belt pulleys 245; the two belts 241 are respectively wound on the plurality of belt pulleys 245, the belt motor is fixedly installed on the frame 1, the belt motor is connected with the plurality of belt pulleys 245 through a belt shaft 243, the plurality of belt pulleys 245 are driven to rotate, and the belt shaft 243 is rotatably installed on the width adjusting mechanism 25.
The bottom shell conveyer belt 24 in the bottom shell feeding assembly line 2 has two, two bottom shell conveyer belts 24 are all installed on the slip conveyer belt frame 22 and fixed conveyer belt frame 23 and link up each other, link up the department at two bottom shell conveyer belts 24 and be equipped with dog mechanism 212, this dog mechanism 212 includes dog cylinder 2121 and dog 2122, the cylinder body fixed mounting of dog cylinder 2121 is on width adjustment mechanism 25, the piston rod end of dog cylinder 2121 is connected with the dog 2122 outer end, the dog 2122 is inboard leans on to bottom shell conveyer belt 24, when the bottom shell is from one bottom shell conveyer belt 24 to another bottom shell conveyer belt 24 in-process, the bottom shell is possible to take place the skew, simultaneously, because two bottom shell conveyer belts 24 can exist linear velocity different, so dog mechanism 212 can play the effect that the bottom shell prevented the off tracking.
The width adjusting mechanism 25 comprises a hand wheel fixing seat 251, an adjusting hand wheel 252, an adjusting screw 253 and two guide plates 254; the hand wheel fixing seat 251 is fixed on the frame 1, the adjusting hand wheel 252 is fixed at the outer end of the adjusting screw 253, the middle part of the adjusting screw 253 is respectively screwed into threaded holes of two guide plates 254, the threads of the threaded holes of the two guide plates 254 are opposite in rotation direction, the two guide plates 254 are respectively fixedly arranged on the sliding conveyor belt frame 22 and the fixed conveyor belt frame 23, and the two guide plates 254 are oppositely arranged and respectively connected on belt shafts 243 in the bottom shell conveyor belt 24 in a sliding manner.
The lifting motor 27 is arranged at the bottom of the upper material frame 26, an output shaft of the lifting motor 27 is connected with the lower end of the lifting screw rod 29 through a lifting belt pulley group 28, the lifting screw rod 29 is rotatably arranged on the upper material frame 26, one end of the lifting table 211 is connected to the middle part of the lifting screw rod through a screw nut in a threaded manner, the lifting table 211 is slidingly connected to the lifting guide rail 210, and the lifting guide rail 210 is fixedly arranged on the upper material frame 26.
Working principle of bottom shell feeding assembly line 2:
1. The bottom shell feeding assembly line 2 is composed of two bottom shell conveying belts 24, the two bottom shell conveying belts 24 are mutually connected for feeding of the bottom shell 100, a stop block mechanism 212 is arranged at the connecting position of the two bottom shell conveying belts, so that the bottom shell is prevented from deviating, the discharging end of the bottom shell conveying belt 24 is connected with a lifting table 211, and the lifting table 211 conveys the bottom shell upwards.
2. The bottom shell feeding assembly line 2 is provided with a width adjusting mechanism 25, and the distance between the two belts 241 in the bottom shell conveying belt 24 can be conveniently adjusted to meet the requirements of bottom shells with different sizes.
As shown in fig. 6 and 7, the assembly platform 3 further includes an assembly bottom plate 31, an installation plate sliding rail (not shown), two conveyor installation plates 33, an assembly conveying assembly 34, a positioning cylinder 35, a positioning block 36, a limiting cylinder 37, a limiting block 38, a width motor 39, a width belt pulley set 310, and a width screw 311;
The assembly bottom plate 31 is fixed on the frame 1, the mounting plate slide rail is fixed on the assembly bottom plate 31, one conveyer belt mounting plate 33 is slidingly connected on the mounting plate slide rail, the other conveyer belt mounting plate 33 is fixedly mounted on the assembly bottom plate 31, the two conveyer belt mounting plates 33 are opposite, the assembly conveying assembly 34 is mounted on the conveyer belt mounting plate 33 and the frame 1, the cylinder body of the positioning cylinder 35 is fixed on the conveyer belt mounting plate 33, the piston rod end of the positioning cylinder 35 is connected with the positioning block 36, the positioning block 36 transversely stretches to the assembly conveying assembly 34 for lateral positioning of the bottom shell of the assembled PCB, assembly accuracy is guaranteed, the cylinder body of the limiting cylinder 37 is fixed on the assembly bottom plate 31, the piston rod end of the limiting cylinder 37 is connected with the limiting block 38, and the limiting block 38 abuts against the discharge end of the assembly conveying assembly 34 for limiting the movement direction of the bottom shell of the assembled PCB.
The assembly conveying assembly 34 comprises two assembly belts 341, an assembly belt motor 342, an assembly belt shaft 343, two assembly belt pulleys 344 and an assembly belt pulley group 345, wherein the two assembly belts 341 are respectively wound on the two belt pulleys 344, the assembly belt motor 342 is fixedly arranged on the assembly bottom plate 31, an output shaft of the assembly belt motor 342 is connected with the assembly belt shaft 343 through the assembly belt pulley group 345, the assembly belt shaft 343 is connected with the two assembly belt pulleys 344, the two assembly belt pulleys 344 are driven to rotate, and the assembly belt shaft 343 is rotatably arranged on the conveying belt mounting plate 33; the width motor 39 is fixedly installed on the assembly bottom plate 31, an output shaft of the width motor 39 is connected with one end of the width screw rod 311 through the width belt pulley group 310, the middle part of the width screw rod 311 is in threaded connection with one conveyor belt mounting plate 33, and the other end of the width screw rod 311 is rotatably installed on the other conveyor belt mounting plate 33.
Working principle of the assembly platform 3:
1. the assembly conveying assembly 34 is used for feeding the bottom shell 100 of the assembled PCB, the bottom shell is positioned by the positioning block 36 driven by the positioning cylinder 35, the accuracy of the product position is guaranteed, the limiting block 38 driven by the limiting cylinder 37 abuts against the discharge end of the assembly conveying assembly 34 and is used for limiting the moving direction of the bottom shell of the assembled PCB, and the screw locking process is carried out at the station.
2. The width adjustment mechanism comprising the width motor 39, the width belt pulley group 310, the width screw 311 and the like can adjust the distance between the two assembly belts 341 in the assembly conveying assembly 34 so as to meet the requirements of bottom shells with different sizes.
As shown in fig. 10, the PCB feeding conveyor line 5 includes two feeding chains 51, two sprocket groups 52, a feeding motor (not shown), sprocket shafts 54, a pressing cylinder 55, and a pressing block 56; the two chains 51 are respectively wound on two sprocket groups 52, a feeding motor is fixedly arranged on the frame 1, the feeding motor is connected with the sprocket groups 52 through sprocket shafts 54, the sprocket groups 52 are driven to rotate, and the sprocket shafts 54 are rotatably arranged on the frame 1; the cylinder body of the material pressing cylinder 55 is arranged on the frame 1, the rod end of a piston rod of the material pressing cylinder 55 is downwards connected with the lower pressing block 56, the lower pressing block 56 is positioned right above the feeding chain 51 and used for limiting the outer edge of a tray provided with a PCB (printed circuit board) so as to prevent the tray from deviating and play a role in auxiliary positioning.
The working principle of the PCB feeding conveying line 5 is as follows:
The feeding motor drives the feeding chain 51 to act through the chain wheel group 52 and is used for carrying the feeding of the tray provided with the PCB on the feeding chain 51; the pressing cylinder 55 drives the lower pressing block 56 downwards, so that the lower pressing block 56 is pressed on the outer edge of the tray to limit, and the auxiliary positioning function is achieved.
The structure of the fixture reflow conveying line 8 is basically the same as that of the PCB feeding conveying line 5, and is not repeated.
As shown in fig. 8 and 9, the PCB board receiving platform 4 includes a receiving guide rail 41, a receiving lifting seat 42, a receiving lifting motor 43, a receiving screw 44, a receiving table 45, a receiving table cylinder 46, a receiving motor 47, a receiving belt pulley set 48, and a receiving conveyor belt 49; the material receiving guide rail 41 is vertically arranged on the frame 1, the material receiving lifting seat 42 is slidingly connected on the material receiving guide rail 41, the inner end of the material receiving lifting seat 42 is in threaded connection with the material receiving screw rod 44 through a screw rod nut, the material receiving screw rod 44 is rotatably arranged on the frame 1 and parallel to the material receiving guide rail 41, the material receiving lifting seat 42 is driven to move up and down, a cylinder body of the material receiving table cylinder 46 is fixed on the bottom surface of the middle part of the material receiving lifting seat 42, the rod end of a piston rod of the material receiving table cylinder 46 is upwards connected with the bottom surface of the material receiving table 45, and the material receiving table 45 can be upwards jacked; the material receiving motor 47 is installed on the material receiving lifting seat 42, an output shaft of the material receiving motor 47 is connected with the material receiving conveyer belt 49 through the material receiving belt pulley group 48, and the material receiving conveyer belt 49 is installed on the top surface of the material receiving lifting seat 42.
The material receiving table 45 and the material receiving table cylinder 46 are provided with two groups for alternately jacking up the PCB in the tray upwards so as to realize continuous production.
The working principle of the PCB material receiving platform 4 is as follows:
The material receiving lifting motor 43 can drive the material receiving lifting seat 42 to move up and down through the material receiving screw rod 44 so as to move the material receiving lifting seat 42 to working positions with different heights, and a material receiving table 45 arranged in the material receiving lifting seat 42 can be lifted up under the drive of a material receiving table cylinder 46, so that a mechanical arm can conveniently take a part; the receiving motor 47 drives the receiving conveyer belt 49 to act through the receiving belt pulley group 48, so that the tray is conveniently sent into or out of the working platform.
As shown in fig. 11 and 12, the PCB board tilting mechanism 6 includes a cylinder block 61, a tilting cylinder 62, a tilting block 63, and a clamping jaw 64; the cylinder seat 61 is fixed on the frame 1, the cylinder body of the turnover cylinder 62 is fixedly arranged on the cylinder seat 61, the rod end of a piston rod of the turnover cylinder 62 is connected with one end of the turnover seat 63, the turnover seat 63 is rotatably arranged on the cylinder seat 61, and the clamping jaw 64 is arranged on the turnover seat 63.
The frame 1 is also provided with a supporting seat 66, the supporting seat 66 is fixed on the frame 1, and the other end of the overturning seat 63 is rotatably arranged on the supporting seat 66.
The PCB turnover mechanism 6 also comprises a turnover guide rail 67, a driving and reversing belt 68 and a driving and reversing motor 69; the turnover guide rail 67 is fixedly installed on the frame 1, the cylinder block 61 is slidingly connected to the turnover guide rail 67, the end part of the cylinder block 61 is clamped on the advancing and retreating belt 68, the advancing and retreating belt 68 is installed on the frame 1, one end of the advancing and retreating belt 68 is connected with an output shaft of the advancing and retreating motor 69, and the advancing and retreating motor 69 is installed on the frame 1.
The turnover guide rails 67 are arranged in two and are respectively and fixedly arranged on two sides of the frame 1 in parallel.
The turnover guide rail 610 on one side is slidably connected with a supporting seat 66, and the other end of the turnover seat 63 is rotatably installed on the supporting seat 66.
The working principle of the PCB turnover mechanism 6 is as follows:
Because the signal plug-in seat is arranged on the PCB and protrudes out of the front surface of the PCB, the clamping jaw 64 arranged on the turnover seat 63 can clamp the signal plug-in seat on the PCB, the turnover cylinder 62 drives the turnover seat 63 to turn over, the PCB is turned over for 180 degrees, the back surface of the PCB faces upwards, and the suction cup on the manipulator waits for sucking; meanwhile, the advance and retreat motor 69 drives the cylinder seat 61 to move forwards and backwards through the advance and retreat belt 68, and can drive the clamping jaw 64 to move to the front station and the rear station, and any one of two PCBs placed in the same tray is clamped, so that the time for waiting for returning the mechanical arm to take materials is shortened, and more efficient mechanical operation is realized.
As shown in fig. 13-15, the mechanical arm clamping mechanism 7 includes a mechanical arm 71, a supporting seat 72, a clamping rail 73, a clamping lifting cylinder 74, a lifting seat 75, a clamping cylinder 76, two clamping plates 77, a joint opening 78, and a suction cup 79.
The mechanical arm 71 is a four-axis mechanical arm, the supporting seat 72 is fixedly arranged at the free end of the mechanical arm 71, the clamping guide rail 73 is fixed on the outer surface of the clamping lifting cylinder 76, the cylinder body of the clamping lifting cylinder 76 is fixedly arranged on the supporting seat 72, the rod end of the piston rod of the clamping lifting cylinder 74 is connected with the middle part of the lifting seat 75, the upper part of the lifting seat 75 is slidingly connected on the clamping guide rail 73, the lower part of the lifting seat 75 is sleeved at the middle part of the supporting seat 72 in a clearance manner, the cylinder body of the clamping cylinder 76 is fixed on the side surface of the lower end of the lifting seat 75 and is positioned on the top surface of the lower end of the supporting seat 72, the two clamping plates 77 are respectively fixed on the rod end of the clamping cylinder 76 and the two clamping plates 77 are opposite, the two clamping plates 77 can be driven to be far away from and close to the lower end of the supporting seat 72 through the clamping lifting cylinder 74, and the material taking position is more flexible; the joint mouth 78 is fixed on the bottom surface of the lower end of the supporting seat 72, the joint mouth 78 is positioned between the two clamping plates 77, the sucker 79 is fixedly arranged on the joint mouth 78, and an external air source provides air pressure required by sucking the PCB board for the sucker 79 through an air port 781 on the joint mouth 78.
The working principle of the mechanical arm clamping mechanism 7 is as follows:
The mechanical arm 71 drives the supporting seat 72 to move, the mechanical arm clamping mechanism 7 is respectively moved to the position right above the PCB and the bottom shell to take materials, and the PCB and the bottom shell are respectively moved to the assembly position to carry out assembly of the PCB and the bottom shell; specifically, moving to the upper side of the bottom shell, the mechanical arm 71 drives the supporting seat 72 to descend, meanwhile, the clamping lifting cylinder 74 drives the lifting seat 75 to move downwards, the clamping cylinder 76 and the clamping plates 77 arranged on the lifting seat 75 move downwards, the clamping cylinder 76 drives the two clamping plates 77 to clamp the bottom shell, and the mechanical arm 71 drives the supporting seat 72 clamping the bottom shell to move to an assembling position, and the bottom shell is put down; the mechanical arm 71 drives the supporting seat 72 to move above the PCB, the mechanical arm 71 drives the supporting seat 72 to descend, the sucker 79 adsorbs the PCB, then the PCB moves to the assembly position, and the PCB is placed on the bottom shell to complete assembly; both grabbing mechanisms are fixed on the supporting seat 72, and grabbing different materials can be alternately achieved through the mechanical arm 71, so that space is greatly saved, and the mechanism is simpler.
The invention relates to a production process of LED display screen bottom shell assembly equipment, which comprises the following steps:
(1) Two PCBs are placed on a tray side by side and are conveyed to a discharge end to wait through a PCB feeding conveying line 5;
(2) Conveying the stacked bottom shells from a feeding end to a discharging end of a bottom shell conveying belt 24 through a bottom shell feeding assembly line 2, and detecting whether the bottom shells are arranged on a lifting table 211 by an inductor, and waiting for the bottom shells if the bottom shells are arranged on the lifting table; if not, the bottom shell conveyor belt 24 sends the whole stack of bottom shells into the lifting table 211, a signal detection device detects whether the bottom shells are in place, the whole stack of bottom shells are lifted to a material taking position through the lifting motor 27, one bottom shell is clamped by the two clamping plates 77 of the mechanical arm clamping mechanism 7, the bottom shell is moved to a visual detection position, whether the direction of the bottom shell is correct is detected and judged through a visual camera (not shown), and if the left end position and the right end position of the bottom shell are found to be placed reversely, the mechanical arm 71 rotates 180 degrees with the bottom shell; if the bottom shell placement direction is correct, not rotating; the mechanical arm clamping mechanism 7 sends the bottom shell to the assembly platform 3; after the bottom shell is taken out, the lifting table 211 in the bottom shell feeding assembly line 2 is quickly lowered to a proper position, the bottom shell conveying belt 24 starts to feed materials, the lifting table 211 is lifted up by the bottom shell, and bottom shell feeding is performed again;
(3) Conveying the PCB mounted on the tray in the step (1) to a PCB receiving platform 4, lifting the first PCB upwards by a group of receiving platform cylinders 46 on the inner side through a receiving platform 45, grabbing a signal plug-in seat of the PCB by clamping jaws 64 on a PCB turnover mechanism 6, grabbing the PCB by clamping jaws 64, lowering the receiving platform 45 of the PCB receiving platform 4, and turning the PCB 180 degrees by the PCB turnover mechanism 6 through a turnover cylinder 62 so that the back of the PCB faces upwards;
(4) The four-axis mechanical arm clamping mechanism 7 sucks the PCB through the sucker 79, the clamping jaw 64 on the PCB overturning mechanism 6 is loosened, the mechanical arm clamping mechanism 7 sucks the PCB to move to the upper side of the bottom shell of the assembly platform 3, the position of the PCB is visually detected, the position of the PCB at the moment is read, the position of the PCB is preset in a comparison system, the position of the mechanical arm 1 is corrected, and the PCB is placed on the bottom shell;
(5) When the bottom shell is taken and placed on the bottom shell assembling platform 3 by the mechanical arm clamping mechanism 7, the bottom shell is positioned by the positioning block 35 and the limiting block 36 on the assembling platform 3, the assembling precision of products is guaranteed, the corrected PCB is mounted on the bottom shell by the mechanical arm clamping mechanism 7, after the assembling is finished, two clamping plates 77 of the mechanical arm clamping mechanism 7 are loosened under the driving of the clamping cylinder 76, the assembling conveying assembly 34 is started, and the assembled products are conveyed to a rear-stage station to lock screws;
(6) In the step (3), two groups of material receiving tables 45 and material receiving table cylinders 46 are arranged, after the mechanical arm clamping mechanism 7 takes away the first PCB in the tray, the outer group of material receiving table cylinders 46 jack up the second PCB upwards through the material receiving tables 45, the advancing and retreating motor 69 of the PCB overturning mechanism 6 drives the cylinder seat 61 to move outwards through the advancing and retreating belt 68 to drive the clamping jaw 64 to move to the upper part of the second PCB, the signal plugging seat of the PCB is grabbed, the clamping jaw 64 grabs the PCB, the material receiving tables 45 of the PCB material receiving platform 4 descend, and the PCB overturning mechanism 6 overturns the PCB 180 degrees through the overturning cylinder 62, so that the back surface of the PCB faces upwards; repeating the action of the step (4);
(7) The mechanical arm clamping mechanism 7 is used for taking and loading the PCB on the tray onto the bottom shell, the empty tray descends to the clamp reflow conveying line 8 through the PCB receiving platform 4, and the clamp reflow conveying line 8 conveys the empty tray to the discharge end for recycling.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, i.e., the equivalent changes and modifications to the invention as described in the claims and specification should be considered as falling within the scope of the invention.
Claims (7)
1. LED display screen drain pan rigging equipment, its characterized in that: the device comprises a frame, a bottom shell feeding assembly line, an assembly platform, a PCB receiving platform, a PCB feeding conveying line, a PCB overturning mechanism, a mechanical arm clamping mechanism and a clamp reflow conveying line;
The bottom shell feeding assembly line, the assembly platform, the PCB receiving platform, the PCB feeding conveying line, the PCB overturning mechanism, the mechanical arm clamping mechanism and the clamp reflow conveying line are all arranged on the frame, a first station of the mechanical arm clamping mechanism is connected with a discharge end of the bottom shell feeding assembly line, and a second station of the mechanical arm clamping mechanism is connected with the assembly platform; the discharging end of the PCB feeding conveying line is connected with the first station of the PCB receiving platform, the second station of the PCB receiving platform is connected with the feeding end of the clamp reflow conveying line, the feeding station of the PCB turnover mechanism is connected with the first station of the PCB receiving platform, the discharging station of the PCB turnover mechanism is connected with the third station of the mechanical arm clamping mechanism, and the fourth station of the mechanical arm clamping mechanism is connected with the assembly platform so as to assemble the PCB on the bottom shell;
The PCB feeding conveying line comprises two feeding chains, two chain wheel sets, a feeding motor and a chain wheel shaft; the two feeding chains are respectively connected to the two chain wheel sets in a winding mode, the feeding motor is fixedly arranged on the frame and connected with the chain wheel sets through chain wheel shafts, the chain wheel sets are driven to rotate, and the chain wheel shafts are rotatably arranged on the frame.
The PCB feeding conveying line further comprises a pressing cylinder and a pressing block; the cylinder body of the material pressing cylinder is arranged on the frame, the rod end of a piston rod of the material pressing cylinder is downwards connected with a lower pressing block, and the lower pressing block is positioned right above the feeding chain;
The PCB turnover mechanism comprises a cylinder seat, a turnover cylinder, a turnover seat, clamping jaws, a rack, a turnover guide rail, a driving and reversing belt and a driving and reversing motor; the cylinder seat is arranged on the frame, the cylinder body of the turnover cylinder is fixedly arranged on the cylinder seat, the rod end of the piston rod of the turnover cylinder is connected with one end of the turnover seat, the turnover seat is rotatably arranged on the cylinder seat, and the clamping jaw is arranged on the turnover seat; the frame is also provided with a supporting seat, and the other end of the overturning seat is rotatably arranged on the supporting seat; the turnover guide rail is fixedly arranged on the frame, the cylinder seat is slidingly connected on the turnover guide rail, the end part of the cylinder seat is clamped on the advancing and retreating belt, the advancing and retreating belt is arranged on the frame, one end of the advancing and retreating belt is connected with an output shaft of the advancing and retreating motor, and the advancing and retreating motor is arranged on the frame; the two turnover guide rails are respectively and fixedly arranged on two sides of the frame in parallel; the turnover guide rail on one side is connected with a supporting seat in a sliding way, and the other end of the turnover seat is rotatably arranged on the supporting seat.
2. The LED display screen bottom shell assembly apparatus of claim 1, wherein: the bottom shell feeding assembly line comprises a width guide rail, a sliding conveyor belt frame, a fixed conveyor belt frame, a bottom shell conveyor belt, a width adjusting mechanism, a feeding frame, a lifting motor, a lifting belt pulley group, a lifting screw rod, a lifting guide rail and a lifting table; the bottom surface of the fixed conveyor belt rack is fixed on the frame and is parallel to the sliding conveyor belt rack, two belts in the bottom shell conveyor belt are respectively arranged on the sliding conveyor belt rack and the fixed conveyor belt rack in parallel, and a width adjusting mechanism is arranged on the bottom shell conveyor belt; the feeding frame is vertically fixed on the frame and is positioned at one end of the sliding conveyor belt frame and one end of the fixed conveyor belt; the bottom shell conveying belt comprises two belts, a belt motor, a belt shaft, a motor belt pulley group and a plurality of belt pulleys; the two belts are respectively wound on the plurality of belt pulleys, the belt motor is fixedly arranged on the frame, the belt motor is connected with the plurality of belt pulleys through a belt shaft and drives the plurality of belt pulleys to rotate, and the belt shaft is rotatably arranged on the width adjusting mechanism; the two bottom shell conveying belts are arranged on the sliding conveying belt frame and the fixed conveying belt frame and are mutually connected; a stop block mechanism is arranged at the joint of the two bottom shell conveying belts and comprises a stop block cylinder and a stop block, the cylinder body of the stop block cylinder is fixedly arranged on the width adjusting mechanism, the rod end of a piston rod of the stop block cylinder is connected with the outer end of the stop block, and the inner end of the stop block is close to the bottom shell conveying belt; the lifting motor is arranged at the bottom of the upper material frame, an output shaft of the lifting motor is connected with the lower end of the lifting screw rod through a lifting belt pulley group, the lifting screw rod is rotatably arranged on the upper material frame, one end of the lifting table is in threaded connection with the middle part of the lifting screw rod through a screw rod nut and is in sliding connection with the lifting guide rail, and the lifting guide rail is fixedly arranged on the upper material frame.
3. The LED display screen bottom shell assembly apparatus of claim 1, wherein: the assembly platform comprises an assembly bottom plate, an assembly plate sliding rail, two conveyor belt assembly plates, an assembly conveying assembly, a width motor, a width belt pulley group, a width screw rod, a positioning cylinder, a positioning block, a limiting cylinder and a limiting block;
the assembly bottom plate is fixed on the frame, the mounting plate sliding rail is fixed on the assembly bottom plate, one conveying belt mounting plate is slidingly connected to the mounting plate sliding rail, the other conveying belt mounting plate is fixedly arranged on the assembly bottom plate, the two conveying belt mounting plates are opposite to each other, and the assembly conveying assembly is arranged on the conveying belt mounting plate and the frame; the assembly conveying assembly comprises two assembly belts, an assembly belt motor, an assembly belt shaft, two assembly belt pulleys and an assembly belt pulley group, wherein the two assembly belts are respectively wound on the two groups of belt pulleys, the assembly belt motor is fixedly installed on an assembly bottom plate, an output shaft of the assembly belt motor is connected with the assembly belt shaft through the assembly belt pulley group, the assembly belt shaft is connected with the two assembly belt pulleys and drives the two assembly belt pulleys to rotate, and the assembly belt shaft is rotatably installed on a conveying belt installation plate; the width motor is fixedly arranged on the assembly bottom plate, an output shaft of the width motor is connected with one end of the width screw rod through a width belt pulley group, the middle part of the width screw rod is in threaded connection with one conveyor belt mounting plate, and the other end of the width screw rod is rotatably arranged on the other conveyor belt mounting plate; the cylinder body of the positioning cylinder is fixed on the conveyor belt mounting plate, the rod end of a piston rod of the positioning cylinder is connected with the positioning block, the positioning block transversely extends to the assembly conveying assembly and is used for laterally positioning the bottom shell of the assembled PCB, the cylinder body of the limiting cylinder is fixed on the assembly bottom plate, the rod end of the piston rod of the limiting cylinder is connected with the limiting block, and the limiting block is propped against the discharge end of the assembly conveying assembly and is used for limiting the moving direction of the bottom shell of the assembled PCB.
4. The LED display screen bottom shell assembly apparatus of claim 1, wherein: the PCB board material receiving platform comprises a material receiving guide rail, a material receiving lifting seat, a material receiving lifting motor, a material receiving screw rod, a material receiving motor, a material receiving belt pulley group, a material receiving conveyer belt, a material receiving table and a material receiving table cylinder; the material receiving guide rail is vertically arranged on the frame, the material receiving lifting seat is slidingly connected on the material receiving guide rail, the inner end of the material receiving lifting seat is in threaded connection with the material receiving screw rod through a screw rod nut, the material receiving screw rod is rotatably arranged on the frame and is parallel to the material receiving guide rail, the material receiving lifting seat is driven to move up and down, the material receiving motor is arranged on the material receiving lifting seat, an output shaft of the material receiving motor is connected with the material receiving conveyer belt through a material receiving belt pulley group, and the material receiving conveyer belt is arranged on the top surface of the material receiving lifting seat; the cylinder body of the receiving platform cylinder is fixed on the bottom surface of the middle part of the receiving lifting seat, and the rod end of the piston rod of the receiving platform cylinder is upwards connected with the bottom surface of the receiving platform and can upwards jack up the receiving platform.
5. The LED display screen bottom shell assembly apparatus of claim 1, wherein: the mechanical arm clamping mechanism comprises a mechanical arm, a supporting seat, a clamping cylinder, two clamping plates, a joint opening, a sucker, a clamping lifting cylinder and a lifting seat; the mechanical arm is a four-axis mechanical arm, the supporting seat is fixedly arranged at the free end of the mechanical arm, the cylinder body of the clamping cylinder is fixed on the top surface of the lower end of the supporting seat, the two clamping plates are respectively fixed on the rod end of the piston rod of the clamping cylinder and are arranged opposite to each other, the joint opening is fixed on the bottom surface of the lower end of the supporting seat, the joint opening is positioned in the middle of the two clamping plates, the sucker is fixedly arranged on the joint opening, and the sucker is communicated with an external air source through an air port on the joint opening; the cylinder body of the clamping lifting cylinder is fixedly arranged on the supporting seat, the rod end of the piston rod of the clamping lifting cylinder is connected with the middle part of the lifting seat, the lower part of the lifting seat is in clearance sleeve joint with the middle part of the supporting seat, and the cylinder body of the clamping cylinder is fixed on the side surface of the lower end of the lifting seat and is positioned on the top surface of the lower end of the supporting seat, so that the two clamping plates are far away from and close to the lower end of the supporting seat under the driving of the clamping lifting cylinder; the outer surface of the clamping lifting cylinder is provided with a guide rail, and the upper part of the lifting seat is slidingly connected to the guide rail.
6. A process for producing the LED display screen bottom shell assembly device according to claim 1, wherein: the method comprises the following steps:
(1) Placing the PCB on a tray, and conveying the PCB to a discharge end for waiting through a PCB feeding conveying line;
(2) Conveying the stacked bottom shells from a feeding end to a discharging end of a bottom shell conveying belt through a bottom shell feeding assembly line, and detecting whether the bottom shells are arranged on the lifting table or not by an inductor, and waiting for the bottom shells if the bottom shells are arranged on the lifting table; if not, the whole stack of bottom shells are sent to a lifting table by a bottom shell conveying belt, whether the bottom shells are in place or not is detected by a signal detection device, the whole stack of bottom shells are lifted to a material taking position by a lifting motor, one bottom shell is clamped by two clamping plates of a mechanical arm clamping mechanism, the bottom shells are moved to a visual detection position, whether the direction of the bottom shells is correct is detected and judged by a visual camera, and if the left end position and the right end position of the bottom shells are reversely placed, the mechanical arm rotates 180 degrees with the bottom shells; if the bottom shell placement direction is correct, not rotating; the mechanical arm clamping mechanism sends the bottom shell to the assembly platform; after the bottom shell is taken out, a lifting table in a bottom shell feeding assembly line is quickly lowered to a position, a bottom shell conveying belt starts to feed materials, the materials are fed to the position, the lifting table is lifted up by the bottom shell, and bottom shell feeding is performed again;
(3) Conveying the PCB mounted on the tray in the step (1) to a PCB receiving platform, lifting the first PCB upwards by a group of receiving platform cylinders on the inner side through the receiving platform, grabbing a signal plugging seat of the PCB by clamping jaws on a PCB overturning mechanism, grabbing the PCB by clamping jaws, descending the receiving platform of the PCB receiving platform, overturning the PCB by 180 degrees by the PCB overturning mechanism through the overturning cylinder, and enabling the back of the PCB to face upwards;
(4) The four-axis mechanical arm clamping mechanism sucks the PCB through the sucker, the clamping jaw on the PCB overturning mechanism is loosened, the mechanical arm clamping mechanism sucks the PCB to move to the position above the bottom shell of the assembly platform, the position of the PCB is visually detected, the position of the PCB at the moment is read, the position of the PCB is preset in the comparison system, the position of the mechanical arm is corrected, and the PCB is placed on the bottom shell;
(5) When the bottom shell is taken and placed on the assembly platform by the mechanical arm clamping mechanism, the bottom shell is positioned by the positioning blocks and the limiting blocks on the assembly platform, so that the assembly precision of products is ensured, the corrected plates are assembled on the bottom shell by the mechanical arm clamping mechanism, after the assembly is finished, two clamping plates of the mechanical arm clamping mechanism are loosened under the driving of the clamping cylinder, the assembly conveying assembly is started, and the assembled products are conveyed to a rear-stage station for locking screws;
(6) The mechanical arm clamping mechanism is used for taking and loading the PCB on the tray onto the bottom shell, the empty tray descends to the clamp reflow conveying line through the PCB receiving platform, and the clamp reflow conveying line conveys the empty tray to the discharge end for recycling.
7. The production process of the LED display screen bottom shell assembly equipment according to claim 6, wherein the production process comprises the following steps of: in the step (3), two groups of material receiving platforms and material receiving platform cylinders are arranged, after a first PCB in a tray is taken away by a mechanical arm clamping mechanism, a group of material receiving platform cylinders on the outer side jack up a second PCB upwards through the material receiving platforms, a driving and reversing motor of a PCB turnover mechanism drives a cylinder seat to move outwards through a driving and reversing belt to drive a clamping jaw to move to the upper side of the second PCB, a signal plugging seat of the PCB is clamped, the clamping jaw is clamped to the PCB, the material receiving platform of the PCB material receiving platform descends, and the PCB turnover mechanism turns over the PCB through the turnover cylinder so that the back of the PCB faces upwards; repeating the action of the step (4).
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| CN112296689A (en) * | 2020-11-25 | 2021-02-02 | 苏州协同创新智能制造装备有限公司 | Automatic assembly line of business card holder |
| CN112758623B (en) * | 2021-01-29 | 2024-09-24 | 惠州市成泰自动化科技有限公司 | Series-connection split-flow conveying line for PCB processing and use method thereof |
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| CN114505666B (en) * | 2022-03-21 | 2023-03-31 | 安费诺凯杰科技(深圳)有限公司 | Automatic assembling equipment for PCB product |
| CN115042445A (en) * | 2022-06-06 | 2022-09-13 | 普洛赛斯（苏州）智能装备有限公司 | Online assembly laminating equipment |
| CN114906590A (en) * | 2022-06-30 | 2022-08-16 | 苏州格林电子设备有限公司 | Automatic feeding reversing machine |
| CN115488628A (en) * | 2022-09-17 | 2022-12-20 | 浙江中科冠腾科技股份有限公司 | Automatic production line for chassis |
| CN115555847A (en) * | 2022-10-24 | 2023-01-03 | 上海诺迈航空设备制造有限公司 | Installation device and installation method for grease isolation gasket of motor |
| CN118180871B (en) * | 2024-04-03 | 2024-08-06 | 重庆福瑞斯自动化设备股份有限公司 | Upper mode assembly station and process for air conditioner |
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| CN107398695B (en) * | 2017-06-26 | 2019-07-23 | 惠州金源精密自动化设备有限公司 | A kind of battery core set steel shell apparatus automatization assembling |
| CN107498308B (en) * | 2017-08-26 | 2024-06-04 | 芜湖隆深机器人有限公司 | Automatic production equipment for household appliance bottom shell |
| CN107775337A (en) * | 2017-11-30 | 2018-03-09 | 嘉孚朗机器人设备（苏州）有限公司 | Intelligent assembly work station |
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