CN112719561B - Full-automatic feeding and discharging equipment of welding equipment - Google Patents

Abstract

The invention relates to full-automatic feeding and discharging equipment of welding equipment, which sequentially comprises a feeding device, a welding device and a discharging device; the feeding device comprises a feeding truss structure, a feeding truss manipulator and a reflow belt line and is used for conveying the parts to be welded to the welding device; the blanking device comprises a blanking truss structure, a blanking truss manipulator and a blanking conveying belt and is used for moving the welded parts out of the welding device and conveying the welded parts to the next working procedure; the welding device is a friction welding host machine and is used for welding parts. The beneficial effects of the invention are as follows: the full-automatic welding process is realized through automatic feeding and automatic discharging, so that the manufacturing efficiency is improved, the labor cost is reduced, and the safety of the production process is improved; the welding positioning is carried out mechanically, so that the qualification rate of part welding can be obviously improved, the consistency of welding states is ensured, and welding differences are avoided; through the bearing of the material trays that can the multi-layer arrangement, also guarantee that welding process can go on in succession fast.

Description

Full-automatic feeding and discharging equipment of welding equipment

Technical Field

The invention belongs to the field of automatic welding equipment, and particularly relates to full-automatic feeding and discharging equipment of welding equipment.

Background

With the high-speed development of the economy in China, the automobile industry is undergoing a development process from the traditional fuel automobile to the future battery automobile. The invention realizes intelligent manufacturing in the electric automobile industry, and fully automatically performs loading and unloading equipment on automobile parts, thereby replacing the traditional manual loading and unloading, saving labor force and improving equipment consistency.

Disclosure of Invention

In order to solve the technical problems, the invention provides full-automatic feeding and discharging equipment of welding equipment.

The technical scheme adopted by the invention is as follows: the full-automatic feeding and discharging equipment of the welding equipment sequentially comprises a feeding device, a welding device and a discharging device;

The feeding device comprises a feeding truss structure, a feeding truss manipulator and a backflow belt line, wherein the feeding truss structure and the backflow belt line are arranged on a feeding frame, and the feeding truss manipulator is arranged on the feeding truss structure;

The discharging device comprises a discharging truss structure, a discharging truss manipulator and a discharging transmission belt, wherein the discharging truss structure is arranged on the discharging frame, the discharging truss manipulator is arranged on the discharging truss structure, and the front end of the discharging transmission belt is arranged below the tail end of the discharging truss structure;

the welding device is a friction welding host machine, and the feeding truss manipulator and the discharging truss manipulator can place or move parts out of an operation table surface of the friction welding host machine.

Preferably, the operation table top is provided with a compaction positioning device, the compaction positioning device comprises a guide plate and a compaction cylinder, the guide plate is one or a plurality of guide plates are arranged in parallel, and two sides of each guide plate are provided with the compaction cylinder;

preferably, the guide plates comprise three guide plates which are arranged in parallel, and four corners of each guide plate are correspondingly provided with a pressing cylinder.

Preferably, the feeding truss manipulator comprises a horizontal sliding plate, a fixed plate and a cylinder clamping jaw, wherein the fixed plate is fixedly arranged above the horizontal sliding plate, the cylinder clamping jaw is connected with the fixed plate through a clamping jaw screw rod, and the clamping jaw screw rod penetrates through the fixed plate;

the feeding truss structure comprises a linear guide rail and a truss screw which are matched with each other, and the sliding plate moves on the linear guide rail under the drive of the truss screw;

The blanking truss structure and the blanking truss manipulator are identical to the feeding truss structure and the feeding truss manipulator in structure.

Preferably, the reflux belt line comprises an upper reflux transmission device, a lower reflux transmission device and lifting devices respectively arranged at the front side and the rear side of the feeding frame;

The upper reflux transmission device and the lower reflux transmission device are respectively arranged above and below the feeding truss manipulator, and the two lifting devices can be stably transited with the upper reflux transmission device and the lower reflux transmission device.

Preferably, the lifting device comprises a first bottom plate, a vertical moving device, a vertical sliding plate, a second bottom plate and a horizontal moving device, wherein the first bottom plate is fixedly arranged on the side surface of the feeding frame, the vertical sliding plate is arranged on the first bottom plate through the vertical moving device, the second bottom plate is vertically fixed on the vertical sliding plate, and the horizontal moving device is arranged on the second bottom plate.

Preferably, the reflow belt line further comprises a material tray for bearing the parts to be welded, wherein the material tray comprises a tray bottom plate, tray guide plates and handles, the handles are arranged on two sides of the tray bottom plate, and the tray guide plates are fixedly arranged on the tray bottom plate;

preferably, positioning holes are formed in four corners of the tray bottom plate, positioning pins are arranged on the handles, and the positioning pins are matched with the positioning holes;

Preferably, three tray guide plates are uniformly arranged on each material tray, and the three material trays are mutually spliced to form a group.

Preferably, the reflux belt line is provided with a splitting device, and the two splitting devices are fixedly arranged on two sides of the lifting device on the front side;

The splitting device comprises a splitting fixing plate, a splitting cylinder and a supporting claw, wherein the splitting cylinder is fixed on the splitting fixing plate, the splitting fixing plate is fixed on the feeding frame, the piston end of the splitting cylinder is connected with the supporting claw, and the supporting claw can extend into the lifting handle.

Preferably, the reflux belt line is provided with a combining device, and the two combining devices are fixedly arranged on two sides of the lifting device on the rear side;

The combining device comprises a combining fixed plate and a turning plate structure, the turning plate structure is hinged on the fixed plate, and the lower surface of the turning plate structure is an arc surface or an inclined surface.

Preferably, the horizontal movement device, the upper return conveying device and the lower return conveying device are independently controllable conveyor belts.

The invention has the advantages and positive effects that: the full-automatic welding process is realized through automatic feeding and automatic discharging, so that the manufacturing efficiency is improved, the labor cost is reduced, and the safety of the production process is improved; the welding positioning is carried out mechanically, so that the qualification rate of part welding can be obviously improved, the consistency of welding states is ensured, and welding differences are avoided; through the bearing of the material trays that can the multi-layer arrangement, improved welding efficiency, also guarantee that welding process can go on in succession fast.

Drawings

FIG. 1 is a schematic diagram of one embodiment of the present invention;

FIG. 2 is a schematic view of a compressing and positioning device according to an embodiment of the present invention;

FIG. 3 is a schematic view of a feeding device according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a loading device according to an embodiment of the present invention;

FIG. 5 is a schematic view of a loading truss structure according to one embodiment of the invention;

FIG. 6 is a schematic diagram of a blanking device according to an embodiment of the present invention;

FIG. 7 is a schematic view of a loading truss manipulator structure according to one embodiment of the invention;

FIG. 8 is a schematic view of a lifting device according to an embodiment of the present invention;

FIG. 9 is a schematic view of a material pallet according to an embodiment of the invention;

FIG. 10 is a schematic view of a splitting apparatus according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a merging device according to an embodiment of the present invention.

In the figure:

1. feeding device 11, feeding truss structure 12 and feeding truss manipulator

121. Horizontal sliding plate 122, fixing plate 123 and cylinder clamping jaw

13. Lifting device 131, first bottom plate 132, vertical movement device

133. Vertical sliding plate 134, second bottom plate 135, and horizontal moving device

14. Upper reflux transmission device 15, lower reflux transmission device 16, and splitting device

161. Splitting fixing plate 162, splitting cylinder 163 and supporting claw

17. Combining device 171, combining fixing plate 172 and turning plate structure

181. Tray bottom plate 182, tray guide plate 183, and handle

184. Positioning pin 2, blanking device 21 and blanking truss structure

22. Unloading truss manipulator 23, unloading conveyer belt 3, welding set

31. Operating platform 32, pressing cylinder 33 and guide plate

Detailed Description

An embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, the invention relates to full-automatic feeding and discharging equipment of welding equipment, which sequentially comprises a feeding device 1, a welding device 3 and a discharging device 2; the welding device 3 is used for welding parts, and only the existing welding equipment is adopted; the feeding device 1 is used for moving the parts to be welded to the operation platform 31 of the welding device 3, and the corresponding discharging device 2 moves the welded parts out of the operation platform 31, places the welded parts on a conveying belt and conveys the welded parts to the next working procedure.

The welding device 3 is a friction welding host machine, and the feeding device 1 and the discharging device 2 can place or move parts out of an operation table surface of the friction welding host machine; in order to avoid the phenomenon of part displacement in the welding process, a compressing and positioning device is arranged on the operation table top and can compress and position the parts placed on the operation table top; the compressing and positioning device comprises a guide plate 33 and compressing air cylinders 32, wherein the guide plate 33 is fixed on an operation table surface through bolts and can be of a protruding structure or a groove structure matched with the parts, after the parts are placed on the guide plate 33, the parts can be limited to generate displacement in the middle of the welding process, in order to further ensure the relative rest of the parts, the parts are compressed through the compressing air cylinders 32, the number of the guide plates 33 is one or a plurality of the guide plates 33 which are arranged in parallel, when the number of the guide plates 33 is a plurality of the guide plates 33, the corresponding number of the parts can be welded at the same time, the compressing air cylinders 32 are arranged on two sides of each guide plate 33, and four compressing air cylinders 32 compress four corners of the parts; the protection cover is covered above the pressing cylinder 32, so that the pressing cylinder 32 is prevented from being damaged during welding, the relay box and the pneumatic control box are respectively arranged on two sides of the guide plate 33 and are connected with the pressing cylinder 32, and automatic pressing action of the bar pressing cylinder is realized.

As shown in fig. 3 to 5, the feeding device 1 comprises a feeding truss structure 11, a feeding truss manipulator 12 and a backflow belt line, wherein the feeding truss structure 11 and the backflow belt line are arranged on a feeding frame, the feeding truss structure 11 provides a supporting foundation for the installation of the feeding device 1, the feeding truss manipulator 12 is arranged on the feeding truss structure 11, the feeding truss manipulator 12 moves back and forth, and the grabbed parts are placed on an operation table of the welding device 3; the reflow belt line is disposed below the travel path of the feeding truss manipulator 12, and is used for conveying the parts, so that the feeding truss manipulator 12 can grasp the parts from the reflow belt line. The feeding truss structure 11 is provided with a linear guide rail and a truss screw which are matched with each other, and the feeding truss manipulator 12 can move back and forth along the linear guide rail under the drive of the truss screw; as shown in fig. 7, the feeding truss manipulator 12 includes a horizontal sliding plate 121, a fixed plate 122 and a cylinder clamping jaw 123, the horizontal sliding plate 121 is movably connected to a truss screw, the fixed plate 122 is fixedly arranged above the horizontal sliding plate 121, the cylinder clamping jaw 123 is connected to the fixed plate 122 through a clamping jaw screw, and the clamping jaw screw passes through the fixed plate 122; the cylinder clamping jaw 123 is arranged below the sliding plate, so that parts can be conveniently grabbed, the cylinder clamping jaw 123 can move up and down under the synergistic effect of the clamping jaw screw rod and the matched guide rail, and can move back and forth under the effect of the truss screw rod; in order to match the welding device 3 to weld a plurality of parts simultaneously, the number of the cylinder clamping jaws 123 is the same as that of the guide plates 33, and the positions of the cylinder clamping jaws 123 are matched, the parts clamped by the cylinder clamping jaws 123 can be accurately placed on the guide plates 33, and the cylinder clamping jaws 123 can be controlled to be opened and closed by a clamping cylinder arranged above the cylinder clamping jaws.

As shown in fig. 6, the blanking device 2 includes a blanking truss structure 21, a blanking truss manipulator 22 and a blanking conveying belt 23, where the blanking truss structure 21 and the blanking truss manipulator 22 are identical to the structure of the feeding truss structure 11 and the structure of the feeding truss manipulator 12 and are symmetrically arranged, the blanking truss structure 21 provides a supporting base for the installation of the blanking device 2, the blanking truss manipulator 22 is arranged on the blanking truss structure 21, the blanking truss manipulator 22 moves back and forth, the welded parts on the operation table of the grabbing welding device 3 are placed on the blanking conveying belt 23, the front end of the blanking conveying belt 23 is arranged below the tail end of the blanking truss structure 21, and the welded parts are conveniently placed on the blanking conveying belt 23 by the blanking truss manipulator 22 and conveyed to the next procedure. The loading truss robot 12 and the unloading truss robot 22 are capable of placing or removing parts from the operating table of the friction welding host machine.

In order to facilitate automatic feeding and timely recovery of empty material trays, the reflow belt line comprises an upper reflow transmission device 14, a lower reflow transmission device 15 and lifting devices 13 respectively arranged at the front side and the rear side of the feeding frame; the annular structure is formed by the upper reflux transmission device 14, the lower reflux transmission device 15 and the two lifting devices 13, so that parts can move up and down and back and forth as required, the two lifting devices 13 can smoothly transition with the upper reflux transmission device 14 and the lower reflux transmission device 15, and the upper reflux transmission device 14 and the lower reflux transmission device 15 are belt-type transmission machines. The upper reflux transmission device 14 and the lower reflux transmission device 15 are respectively arranged above and below the upper material loading truss manipulator 12, the parts are transmitted to the lower reflux transmission device 15, grabbing is carried out through the upper material loading truss manipulator 12, and the upper reflux transmission device 14 can be used for transmitting or temporarily storing empty material trays.

As shown in fig. 8, the lifting device 13 includes a first bottom plate 131, a vertical moving device 132, a vertical sliding plate 133, a second bottom plate 134 and a horizontal moving device 135, wherein the first bottom plate 131 is fixedly arranged on the side surface of the feeding frame, so that the lifting device 13 is conveniently fixed on the feeding truss, the vertical sliding plate 133 is arranged on the first bottom plate 131 through the vertical moving device 132, so that the vertical sliding plate 133 can move up and down, the vertical moving device 132 includes parallel guide rails and racks, and a servo motor connected with the racks, and the vertical sliding plate 133 is controlled to move up and down along the guide rails through the cooperation of the servo motor and the racks; the second bottom plate 134 is vertically fixed on the vertical sliding plate 133 and is kept horizontal, and is used for bearing a material tray, the horizontal moving device 135 is arranged on the second bottom plate 134, and the horizontal moving device 135 is the same as the upper reflux transmission device 14 and the lower reflux transmission device 15 and is a belt conveyor, and specifically can be a driving shaft and a driven shaft which are connected through two synchronous belts, and the driving shaft is connected with a speed reducing motor, so that the effect of horizontal transmission is realized; the second bottom plate 134 is provided with a stopper upwards, so that the column blocking material tray is prevented from falling off.

The reflow belt line further comprises a material tray for bearing the parts to be welded, as shown in fig. 9, the material tray comprises a tray bottom plate 181, tray guide plates 182 and handles 183, the handles 183 are arranged on two sides of the tray bottom plate 181, the material tray is convenient to lift, the tray guide plates 182 are fixedly arranged on the tray bottom plate 181 and used for placing the parts, the tray guide plates 182 and the guide plates 33 have the same structure, are of a protruding structure or a groove structure matched with the parts, and the parts are placed on the tray guide plates 182 to avoid falling off in the moving process; in order to adapt to the multi-part welding process, the number of tray guide plates 182 on each material tray is the same as the number of guide plates 33; the plurality of material trays can be stacked up and down and are positioned and spliced, positioning holes are formed in four corners of the tray bottom plate 181, positioning pins 184 are arranged on the handles 183, the positioning pins 184 are matched with the positioning holes, and when the plurality of material trays are stacked, the positioning pins 184 of the lower material tray are inserted into the positioning holes of the upper material tray; a plurality of material trays stacked together can be carried by one-time feeding, and then the material trays are sequentially transmitted to a reflow belt line for feeding and welding.

In order to smoothly split or combine the multi-layer stacked material trays in the conveying process, a splitting device 16 and a combining device 17 can be arranged on two sides of the lifting device 13 on the front side and the rear side, and the splitting device 16 and the combining device 17 are arranged in the middle of the lifting range of the lifting device 13. Two splitting devices 16 are fixedly installed on two sides of the lifting device 13 on the front side, as shown in fig. 10, the splitting devices 16 comprise a splitting fixing plate 161, a splitting cylinder 162 and supporting claws 163, the splitting fixing plate 161 is fixed on the feeding frame, the splitting cylinder 162 is fixed on the back side of the splitting fixing plate 161, a piston of the splitting cylinder 162 penetrates through the splitting fixing plate 161, the piston end of the splitting cylinder 162 is connected with the supporting claws 163, the supporting claws 163 can extend into the lifting handles 183, the supporting claws 163 on two sides extend into the lifting handles 183, corresponding material trays can be fixed and cannot fall down along with the lifting device 13, and the lifting device 13 can support the material tray at the bottommost end to descend and be transmitted to the lower reflux transmission device 15. The two merging devices 17 are fixedly installed on two sides of the lifting device 13 at the rear side, as shown in fig. 11, the merging devices 17 comprise a merging fixing plate 171 and a turning plate structure 172, the turning plate structure 172 is hinged on the fixing plate 122, the lower surface of the turning plate structure 172 is an arc surface or an inclined surface, the natural state of the turning plate structure 172 is horizontal, when the material tray rises, the lifting handle 183 pushes the lower surface of the arc surface or the inclined surface of the turning plate structure 172, the turning plate structure 172 is turned up, after the lifting handle 183 exceeds the turning plate structure 172, the turning plate structure 172 falls back, the lifting handle 183 is arranged on the turning plate structure 172, and the material tray is limited not to continuously fall.

Examples:

The full-automatic feeding and discharging equipment of the welding equipment sequentially comprises a feeding device 1, a welding device 3 and a discharging device 2;

The welding device 3 is a friction welding host machine, and the feeding truss manipulator 12 and the discharging truss manipulator 22 can place or move parts out of an operation table surface of the friction welding host machine; the operation table top is provided with a compressing and positioning device, the compressing and positioning device comprises guide plates 33 and compressing air cylinders 32, the guide plates 33 comprise three guide plates which are arranged in parallel, and four corners of each guide plate 33 are respectively provided with one compressing air cylinder 32.

The feeding device 1 comprises a feeding truss structure 11, a feeding truss manipulator 12 and a backflow belt line, wherein the feeding truss structure 11 and the backflow belt line are arranged on a feeding frame, and the feeding truss manipulator 12 is arranged on the feeding truss structure 11; the blanking device 2 comprises a blanking truss structure 21, a blanking truss manipulator 22 and a blanking conveying belt 23, wherein the blanking truss structure 21 is arranged on a blanking frame, the blanking truss manipulator 22 is arranged on the blanking truss structure 21, and the front end of the blanking conveying belt 23 is arranged below the tail end of the blanking truss structure 21. The feeding truss manipulator 12 comprises a horizontal sliding plate 121, a fixed plate 122 and a cylinder clamping jaw 123, wherein the fixed plate 122 is fixedly arranged above the horizontal sliding plate 121, the cylinder clamping jaw 123 is connected with the fixed plate 122 through a clamping jaw screw rod, and the clamping jaw screw rod penetrates through the fixed plate 122; the feeding truss structure 11 comprises a linear guide rail and a truss screw which are matched with each other, and the sliding plate moves on the linear guide rail under the drive of the truss screw; the blanking truss structure 21 and the blanking truss manipulator 22 are identical in structure to the charging truss structure 11 and the charging truss manipulator 12.

The reflow belt line comprises an upper reflow transmission device 14, a lower reflow transmission device 15 and lifting devices 13 respectively arranged at the front side and the rear side of the feeding frame; the upper reflux transmission device 14 and the lower reflux transmission device 15 are respectively arranged above and below the feeding truss manipulator 12, and the two lifting devices 13 can be stably transited with the upper reflux transmission device 14 and the lower reflux transmission device 15; the lifting device 13 includes a first bottom plate 131, a vertical moving device 132, a vertical sliding plate 133, a second bottom plate 134, and a horizontal moving device 135, the first bottom plate 131 is fixedly disposed on the side of the feeding frame, the vertical sliding plate 133 is disposed on the first bottom plate 131 through the vertical moving device 132, the second bottom plate 134 is vertically fixed on the vertical sliding plate 133, and the horizontal moving device 135 is disposed on the second bottom plate 134. The reflow belt line further comprises a material tray for bearing parts to be welded, wherein the material tray comprises a tray bottom plate 181, tray guide plates 182 and handles 183, the handles 183 are arranged on two sides of the tray bottom plate 181, and the tray guide plates 182 are fixedly arranged on the tray bottom plate 181; positioning holes are formed in four corners of the tray base plate 181, positioning pins 184 are arranged on the handles 183, and the positioning pins 184 are matched with the positioning holes; three tray guide plates 182 are uniformly arranged on each material tray, and the three material trays are mutually spliced to form a group.

The reflow belt line is provided with a splitting device 16, and the two splitting devices 16 are fixedly arranged on two sides of the lifting device 13 on the front side; the splitting device 16 comprises a splitting fixing plate 161, a splitting cylinder 162 and a supporting claw 163, wherein the splitting cylinder 162 is fixed on the splitting fixing plate 161, the splitting fixing plate 161 is fixed on the feeding frame, the piston end of the splitting cylinder 162 is connected with the supporting claw 163, and the supporting claw 163 can extend into the lifting handle 183. The reflux belt line is provided with a combining device 17, and the two combining devices 17 are fixedly arranged on two sides of the lifting device 13 at the rear side; the combining device 17 comprises a combining fixing plate 171 and a turning plate structure 172, wherein the turning plate structure 172 is hinged on the fixing plate 122, and the lower surface of the turning plate structure 172 is an arc surface or an inclined surface.

The operation process of the equipment is as follows:

placing three parts to be welded on one material tray, stacking the three material trays together to form a group, respectively taking two groups of the three material trays to be fed to the front lifting device 13 and the rear lifting device 13 on the reflux belt line, lifting the three material trays on the rear lifting device 13 under the action of the lifting device 13, and conveying the three material trays on the upper reflux conveying device 14 after the horizontal moving device 135 is leveled with the upper reflux conveying device 14; the three material trays on the front side are driven by the lifting device 13 to rise, after the middle material tray is flush with the splitting device 16, the supporting claw 163 of the splitting device 16 extends forwards under the action of the splitting cylinder 162 and is inserted into the lifting handle 183 of the middle material tray, the lifting device 13 descends to drive the lowest tray to descend flush with the lower reflux transmission device 15, the lifting device 13 moves onto the lower reflux transmission device 15 under the action of the horizontal movement device 135, the feeding truss manipulator 12 moves onto the upper part of the lower reflux transmission device 15, three parts on the material tray are grabbed, and the three parts are moved and placed on the operating platform 31 of the welding device 3, compressed by the compressing and positioning device and welded simultaneously; after the welding is completed, the pressing and positioning device is loosened, and the blanking truss manipulator 22 grabs the welded part and moves the part to the blanking conveying belt 23 to be conveyed to the next process.

After the feeding truss manipulator 12 grabs the parts, the empty material trays are transmitted to the horizontal moving device 135 of the rear side lifting device 13 through the lower reflux transmission device 15, lifted up under the drive of the lifting machine, and clamped above the combining device 17 after passing through the combining device 17, and the arrival of the subsequent material trays is waited; after the front side lifting device 13 moves the first material tray onto the lower reflux transmission device 15, the front side lifting device 13 lifts upwards to drag the blocked original intermediate material tray, the splitting device 16 retracts, the front side lifting device 13 moves downwards, the splitting device 16 clamps the upper material tray, the same operation as the previous material tray is performed, and the feeding process is performed; the material tray in the second hole after feeding moves upwards under the action of the rear lifting device 13, and the position of the material tray is limited by the combining device 17 after the material tray is spliced with the first material tray through the positioning pins 184 and the positioning holes; the third material tray is loaded by the same method, so that the loading process of a group of materials is completed; the lifting device 13 at the rear side conveys the three empty material trays to the upper reflux conveying device 14, and the material tray group loaded with parts on the upper reflux conveying device 14 moves to the lifting device 13 at the front side to sequentially perform feeding operation; when the feeding process is finished by the two groups of material trays, a new material tray is manually replaced.

The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims (8)

1. Full-automatic material loading unloading equipment of welding equipment, its characterized in that: the device comprises a feeding device, a welding device and a discharging device in sequence;

The feeding device comprises a feeding truss structure, a feeding truss manipulator and a backflow belt line, wherein the feeding truss structure and the backflow belt line are arranged on a feeding frame, and the feeding truss manipulator is arranged on the feeding truss structure;

The blanking device comprises a blanking truss structure, a blanking truss manipulator and a blanking conveying belt, wherein the blanking truss structure is arranged on a blanking frame, the blanking truss manipulator is arranged on the blanking truss structure, and the front end of the blanking conveying belt is arranged below the tail end of the blanking truss structure;

The welding device is a friction welding host, and the feeding truss manipulator and the discharging truss manipulator can place or move parts out of an operation table surface of the friction welding host;

The reflow belt line comprises an upper reflow transmission device, a lower reflow transmission device and lifting devices respectively arranged at the front side and the rear side of the feeding frame; the upper reflux transmission device and the lower reflux transmission device are respectively arranged above and below the feeding truss manipulator, and the two lifting devices can be stably transited with the upper reflux transmission device and the lower reflux transmission device;

the reflow belt line further comprises a material tray for bearing parts to be welded, the material tray comprises a tray bottom plate, tray guide plates and handles, the handles are arranged on two sides of the tray bottom plate, and the tray guide plates are fixedly arranged on the tray bottom plate; positioning holes are formed in four corners of the tray bottom plate, positioning pins are arranged on the handles, and the positioning pins are matched with the positioning holes; three tray guide plates are uniformly arranged on each material tray, and the three material trays are mutually spliced to form a group;

the reflow belt line is provided with a splitting device, and the two splitting devices are fixedly arranged on two sides of the lifting device on the front side; and the reflux belt line is provided with a combining device, and the two combining devices are fixedly arranged on two sides of the lifting device at the rear side.

2. The full-automatic loading and unloading device of the welding device according to claim 1, wherein: the operation table top is provided with a compressing and positioning device, the compressing and positioning device comprises a guide plate and compressing cylinders, the guide plate is one or a plurality of guide plates which are arranged in parallel, and both sides of each guide plate are provided with the compressing cylinders.

3. The full-automatic loading and unloading device of the welding device according to claim 2, wherein: the guide plates comprise three guide plates which are arranged in parallel, and four corners of each guide plate are respectively provided with one compression cylinder.

4. A full-automatic loading and unloading device for a welding device according to any one of claims 1-3, characterized in that: the feeding truss manipulator comprises a horizontal sliding plate, a fixed plate and a cylinder clamping jaw, wherein the fixed plate is fixedly arranged above the horizontal sliding plate, the cylinder clamping jaw is connected with the fixed plate through a clamping jaw lead screw, and the clamping jaw lead screw penetrates through the fixed plate;

the feeding truss structure comprises a linear guide rail and a truss screw rod which are matched with each other, and the sliding plate moves on the linear guide rail under the drive of the truss screw rod;

the discharging truss structure and the discharging truss manipulator are identical to the feeding truss structure and the feeding truss manipulator in structure.

5. The full-automatic loading and unloading device of the welding device according to claim 1, wherein: the lifting device comprises a first bottom plate, a vertical moving device, a vertical sliding plate, a second bottom plate and a horizontal moving device, wherein the first bottom plate is fixedly arranged on the side surface of the feeding frame, the vertical sliding plate is arranged on the first bottom plate through the vertical moving device, the second bottom plate is vertically fixed on the vertical sliding plate, and the horizontal moving device is arranged on the second bottom plate.

6. The full-automatic loading and unloading device of the welding device according to claim 1, wherein: the splitting device comprises a splitting fixing plate, a splitting cylinder and a supporting claw, wherein the splitting cylinder is fixed on the splitting fixing plate, the splitting fixing plate is fixed on the feeding frame, the piston end of the splitting cylinder is connected with the supporting claw, and the supporting claw can extend into the lifting handle.

7. The full-automatic loading and unloading device of the welding device according to claim 1, wherein: the combining device comprises a combining fixed plate and a turning plate structure, wherein the turning plate structure is hinged to the fixed plate, and the lower surface of the turning plate structure is an arc surface or an inclined surface.

8. The full-automatic loading and unloading device of the welding device according to claim 5, wherein: the horizontal moving device, the upper reflux transmission device and the lower reflux transmission device are all independently controllable conveyor belts.