CN112589308A

CN112589308A - Diode vacuum welding device

Info

Publication number: CN112589308A
Application number: CN202011509385.6A
Authority: CN
Inventors: 徐建仁
Original assignee: Wuhu Denamei Semiconductor Co ltd
Current assignee: Wuhu Denamei Semiconductor Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-04-02

Abstract

The invention discloses a diode vacuum welding device which comprises a workbench, wherein a welding box is fixedly installed at the top of the workbench, a feeding hole and a discharging hole are respectively formed in two sides of the welding box, a first electromagnetic valve and a second electromagnetic valve are respectively installed in the feeding hole and the discharging hole, a first sensor is fixedly installed on the left side of the welding box above the feeding hole, a second sensor is fixedly installed on the inner wall of the right side of the welding box below the discharging hole, a transmission table is fixedly installed in the welding box, a transmission hole is formed in the top of the transmission table, and two conveying rollers are rotatably installed in the transmission hole. The graphite boat welding device is convenient and fast to operate, the graphite boat can not move during welding, welding failure is avoided, and meanwhile the conveying belt is limited.

Description

Diode vacuum welding device

Technical Field

The invention relates to the technical field of diode welding, in particular to a diode vacuum welding device.

Background

Diodes, electronic components, a device with two electrodes, allow current to flow only in a single direction, and many applications use the rectifying function. And the varactor is used as an electronically tunable capacitor. The current directivity that most diodes have is commonly referred to as the "rectifying" function. The most common function of a diode is to allow current to pass in a single direction (referred to as forward biasing) and to block current in the reverse direction (referred to as reverse biasing). Thus, the diode can be thought of as an electronic version of the check valve.

However, conventionally, a steel chain conveyor is generally used for vacuum welding of diodes, and this conveyor is likely to be displaced when conveyed by a conveying roller, and in general, in the case of welding of diodes, diode elements are placed in a graphite boat, the graphite boat is placed on the conveyor and is then conveyed into a welding furnace for welding, and the diode elements are fixed stably during welding.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a diode vacuum welding device.

In order to achieve the purpose, the invention adopts the following technical scheme: a diode vacuum welding device comprises a workbench, wherein a welding box is fixedly mounted at the top of the workbench, a feed inlet and a discharge outlet are respectively formed in two sides of the welding box, a first electromagnetic valve and a second electromagnetic valve are respectively mounted in the feed inlet and the discharge outlet, a first sensor is fixedly mounted above the feed inlet on the left side of the welding box, a second sensor is fixedly mounted below the discharge outlet on the inner wall on the right side of the welding box, a transmission platform is fixedly mounted in the welding box, a transmission hole is formed in the top of the transmission platform, two conveying rollers are rotatably mounted in the transmission hole, the same conveying belt is sleeved on the surfaces of the two conveying rollers, a conveying motor is mounted at one end of the transmission platform, a rotating shaft is fixedly connected to an output shaft of the conveying motor and is connected with one end of one conveying roller through a bearing, the top of the transmission platform is fixedly provided with two support rods at two sides of the transmission hole, the top ends of the four support rods are rotatably connected with guide wheels, one ends of the four guide wheels, which are close to each other, are abutted against the edges of two sides of the conveying belt, the top of the conveying belt is fixedly provided with a fixed seat, the top of the fixed seat is provided with a chute, the inside of the fixed seat is positioned below the chute and is provided with a cavity, the chute is internally and slidably provided with a sliding plate, the bottom of the sliding plate is fixedly connected with four springs which are distributed in a rectangular shape, the bottoms of the springs are fixedly connected with the bottom of the chute, the bottom of the sliding plate is fixedly connected with a sliding rod, the bottom of the sliding rod is hinged with two first connecting rods by penetrating through the cavity, the inner walls at two sides of the, the end, close to each other, of each of the two push rods is fixedly connected with a pressing plate, the bottom of the end, far away from each other, of each of the two push rods is rotatably connected with a second connecting rod, the middle of each of the two second connecting rods is fixedly connected with a rotating rod, the two ends of the rotating rod are fixedly connected with the inner walls of the inner side and the outer side of the cavity respectively, one side of the bottom, close to each other, of each of the two second connecting rods is rotatably connected with the corresponding first connecting rod, the welding box is divided into a welding area and a cooling area, the top of the welding box is fixedly provided with a vacuum pump, the top of the welding box is internally provided with a connecting pipe, the bottom of the connecting pipe is communicated with two gas pipes, the two gas pipes are respectively communicated with the welding area and the cooling area, third electromagnetic valves are respectively arranged, the top fixed mounting of workstation has the controller, the controller with first solenoid valve, second solenoid valve, third solenoid valve, vacuum pump and the equal electric connection of driving motor.

Preferably, two rotating holes are formed in the inner walls of the inner side and the outer side of each transmitting hole, and corresponding conveying rollers are rotatably arranged between the rotating holes.

Preferably, the conveyer belt is a steel chain conveyer belt.

Preferably, an inner ring at one end of the bearing is fixedly connected with one end of the conveying roller, and an inner ring at the other end of the bearing is fixedly connected with one end of the rotating shaft.

Preferably, the surface of the controller is provided with a display screen, input keys and a state display lamp.

Preferably, the anti-skidding wear-resisting pads are paved on the surfaces of one sides, close to each other, of the two pressing plates.

Preferably, the front surface of the welding box is provided with an observation window.

Compared with the prior art, the invention has the beneficial effects that:

1. when the invention works, the first sensor above the feed inlet can sense whether a person approaches in a certain range, so that the first electromagnetic valve can be opened, the graphite boat provided with the diode element is placed on the fixed seat, the first electromagnetic valve is closed, meanwhile, the vacuum pump at the top of the welding box forms a vacuum environment in the welding box through two third electromagnetic valves and the gas transmission pipe, then the conveying motor rotates to drive the rotating shaft to rotate so as to drive the conveying roller to rotate, the conveying belt moves to drive the graphite boat to move, the guide wheel on the surface of the transmission table limits the conveying belt in the moving process, prevents the conveying belt from deviating, enters a cooling area for cooling after welding is completed, and finally moves to the side of a discharge port, the second sensor below the discharge port senses that an object is close to the discharge port, so that the second electromagnetic valve is opened, and the welding box is sent out.

2. The graphite boat fixing device is provided with the sliding seat, the sliding seat on the fixing seat is pressed to move downwards, so that the sliding rod moves downwards, the angle between the two first connecting rods is increased, the two second connecting rods are pushed to rotate, the two push rods are close to each other, the press plates are driven to gradually close to the graphite boat and firmly abut against the two side surfaces of the graphite boat, the graphite boat is fixed, and deviation is prevented.

Drawings

FIG. 1 is a schematic sectional front view of a vacuum diode soldering apparatus according to the present invention;

FIG. 2 is a schematic external view of a vacuum diode soldering apparatus according to the present invention;

FIG. 3 is a schematic top view of a conveying table of a diode vacuum welding apparatus according to the present invention;

FIG. 4 is a schematic side view of a vacuum diode soldering apparatus according to the present invention;

FIG. 5 is an enlarged view of the portion A shown in FIG. 1 according to the present invention.

In the figure: 100. a work table; 101. welding a box; 102. a first solenoid valve; 103. a second solenoid valve; 104. a first sensor; 105. a second sensor; 106. a transfer station; 107. a conveying roller; 108. a conveyor belt; 109. a conveying motor; 110. a rotating shaft; 111. a guide wheel; 112. a fixed seat; 113. a slide plate; 114. a slide bar; 115. a first connecting rod; 117. a push rod; 117. pressing a plate; 118. a second connecting rod; 119. rotating the rod; 120. a welding zone; 121. a cooling zone; 122. a vacuum pump; 123. a gas delivery pipe; 124. a third electromagnetic valve; 125. a controller; 126. and (4) an observation window.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a diode vacuum welding device comprises a workbench 100, a welding box 101 is welded at the top of the workbench 100, a feeding port and a discharging port are respectively formed in two sides of the welding box 101, a first electromagnetic valve 102 and a second electromagnetic valve 103 are respectively installed in the feeding port and the discharging port, a first sensor 104 is welded above the feeding port on the left side of the welding box 101, a second sensor 105 is welded below the discharging port on the inner wall of the right side of the welding box 101, a transmission platform 106 is welded in the welding box 101, a transmission hole is formed in the top of the transmission platform 106, two conveying rollers 107 are rotatably installed in the transmission hole, the same conveying belt 108 is sleeved on the surfaces of the two conveying rollers 107, a conveying motor 109 is installed at one end of the transmission platform 106, a rotating shaft 110 is welded on an output shaft of the conveying motor 109, the rotating shaft 110 is connected with one end of one conveying roller 107 through a bearing, two supporting rods are welded on, the top ends of the four support rods are rotatably connected with guide wheels 111, one ends of the four guide wheels 111, which are close to each other, are abutted against the edges of the two sides of the conveyor belt 108, the top of the conveyor belt 108 is welded with a fixed seat 112, the top of the fixed seat 112 is provided with a chute, the inside of the fixed seat 112 is positioned below the chute and is provided with a cavity, a sliding plate 113 is slidably mounted in the chute, the bottom of the sliding plate 113 is welded with four springs which are distributed in a rectangular shape, the bottom of each spring is welded with the bottom of the chute, the bottom of the sliding plate 113 is welded with a sliding rod 114, the bottom end of the sliding rod 114 is hinged with two first connecting rods 115 through the cavity, the inner walls of the two sides of the chute are provided with limiting holes, the two limiting holes are respectively and slidably connected with push rods 116, one ends of the two push rods 116, two ends of a rotating rod 119 are respectively welded with the inner walls of the inner side and the outer side of a cavity, one side of the bottom ends, close to each other, of two second connecting rods 118 is rotatably connected with corresponding first connecting rods 115, the inside of a welding box 101 is divided into a welding area 120 and a cooling area 121, a vacuum pump 122 is welded at the top of the welding box 101, a connecting pipe is installed inside the top end of the welding box 101, the bottom of the connecting pipe is communicated with two gas pipes 123, the two gas pipes 123 are respectively communicated with the welding area 120 and the cooling area 121, a third electromagnetic valve 124 is installed inside each of the two gas pipes 123, an exhaust pipe is communicated between each connecting pipe and the vacuum pump 122, a controller 125 is welded at the top of the workbench 100, and the controller 125 is electrically connected with the first electromagnetic valve 102, the second electromagnetic valve 103;

two rotation holes have all been seted up to the inside and outside both sides inner wall in transfer port, it installs conveying roller 107 to rotate between two rotation holes that correspond, conveyer belt 108 is steel material chain conveyor, the one end inner circle of bearing and the one end welding of conveying roller 107, the other end inner circle of bearing and the one end welding of axis of rotation 110, the surface mounting of controller 125 has the display screen, input button and status display lamp, the wear pad of antiskid has all been laid to one side surface that two clamp plates 117 are close to each other, observation window 27 is installed in the front of welding box 101.

The working principle is as follows: whether a person approaches to the graphite boat in a certain range can be sensed through the first sensor 104 above the feeding hole, so that the first electromagnetic valve 102 can be opened, the graphite boat loaded with diode elements is placed on the fixing seat 112, the first electromagnetic valve 102 is closed, meanwhile, the vacuum pump 122 at the top of the welding box 101 enables the interior of the welding box 101 to form a vacuum environment through the two third electromagnetic valves 124 and the air pipe 123, the sliding seat on the fixing seat 112 is pressed downwards, the sliding rod 114 is made to move downwards, so that the angle between the two first connecting rods 115 is increased, the two second connecting rods 118 are pushed to rotate, so that the two push rods 116 approach to each other to drive the pressing plates 117 to gradually approach the graphite boat and firmly abut against the two side surfaces of the graphite boat to fix the graphite boat, then the conveying motor 109 rotates to drive the rotating shaft 110 to rotate so that the conveying roller 107 rotates, and the conveying belt, the guide wheel 111 on the surface of the conveying table 106 limits the conveying belt 108 in the moving process, so that the conveying belt 108 is prevented from deviating, the conveying belt enters the cooling area 121 for cooling after welding is completed, and finally the conveying belt moves to the side of the discharge port, and the second sensor 105 below the discharge port senses that an object approaches, so that the second electromagnetic valve 103 is opened and the conveying belt is sent out of the welding box 101.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A diode vacuum welding device comprises a workbench (100), and is characterized in that: the welding machine is characterized in that a welding box (101) is fixedly mounted at the top of the workbench (100), a feeding hole and a discharging hole are respectively formed in two sides of the welding box (101), a first electromagnetic valve (102) and a second electromagnetic valve (103) are respectively mounted in the feeding hole and the discharging hole, a first sensor (104) is fixedly mounted above the feeding hole on the left side of the welding box (101), a second sensor (105) is fixedly mounted below the discharging hole on the inner wall of the right side of the welding box (101), a transmission table (106) is fixedly mounted in the welding box (101), a transmission hole is formed in the top of the transmission table (106), two conveying rollers (107) are rotatably mounted in the transmission hole, the surface of each conveying roller (107) is sleeved with the same conveying belt (108), and a conveying motor (109) is mounted at one end of the transmission table (106), the conveying mechanism is characterized in that a rotating shaft (110) is fixedly connected to an output shaft of the conveying motor (109), the rotating shaft (110) is connected with one end of one conveying roller (107) through a bearing, two supporting rods are fixedly mounted on two sides of the conveying hole at the top of the conveying table (106), the top ends of the four supporting rods are rotatably connected with guide wheels (111), one ends, close to each other, of the four guide wheels (111) are abutted to edges on two sides of the conveying belt (108), a fixing seat (112) is fixedly mounted on the top of the conveying belt (108), a sliding groove is formed in the top of the fixing seat (112), a cavity is formed in the inner portion of the fixing seat (112) below the sliding groove, a sliding plate (113) is slidably mounted in the sliding groove, four springs are fixedly connected to the bottom of the sliding plate (113) and are distributed in a rectangular shape, and the bottoms of the springs, the bottom fixedly connected with slide bar (114) of slide plate (113), the bottom of slide bar (114) is run through the cavity and is articulated to have two head rods (115), the both sides inner wall of spout has all been seted up spacing hole, two equal sliding connection has push rod (116) in the spacing hole, two equal fixedly connected with clamp plate (117) of one end that push rod (116) are close to each other, two the one end bottom that push rod (116) kept away from each other all rotates and is connected with second connecting rod (118), two equal fixedly connected with dwang (119) in the middle of second connecting rod (118), the both ends of dwang (119) respectively with the inside and outside both sides inner wall fixed connection of cavity, two bottom one side that second connecting rod (118) are close to each other all with corresponding head rod (115) rotate and are connected, divide into weld zone (120) and cooling space (121) in welding case (101), the top fixed mounting of welding case (101) has vacuum pump (122), the top internally mounted of welding case (101) has the connecting pipe, the bottom intercommunication of connecting pipe has two gas-supply pipes (123), two gas-supply pipe (123) respectively with welding region (120) with cooling zone (121) intercommunication, two all install third solenoid valve (124) in gas-supply pipe (123), the connecting pipe with the intercommunication has the exhaust tube between vacuum pump (122), the top fixed mounting of workstation (100) has controller (125), controller (125) with the equal electric connection of first solenoid valve (102), second solenoid valve (103), third solenoid valve (124), vacuum pump (122) and driving motor.

2. A diode vacuum soldering apparatus according to claim 1, wherein: two rotation holes have all been seted up to the inside and outside both sides inner wall in transfer port, and corresponding two rotate and install conveying roller (107) between the hole.

3. A diode vacuum soldering apparatus according to claim 1, wherein: the conveying belt (108) is a steel chain conveying belt.

4. A diode vacuum soldering apparatus according to claim 1, wherein: and an inner ring at one end of the bearing is fixedly connected with one end of the conveying roller (107), and an inner ring at the other end of the bearing is fixedly connected with one end of the rotating shaft (110).

5. A diode vacuum soldering apparatus according to claim 1, wherein: the surface of the controller (125) is provided with a display screen, input keys and a state display lamp.

6. A diode vacuum soldering apparatus according to claim 1, wherein: and anti-skidding wear-resistant pads are paved on the surface of one side, close to each other, of each of the two pressing plates (117).

7. A diode vacuum soldering apparatus according to claim 1, wherein: four symmetrically distributed supporting seats are fixedly arranged at the bottom of the workbench (100).

8. A diode vacuum soldering apparatus according to claim 1, wherein: and the front surface of the welding box (101) is provided with an observation window (126).