Automatic welding device

Abstract

The utility model discloses an automatic welding device which comprises a product conveying device, the product conveying device comprises a product conveying track, and a conveying groove is formed in the top of the product conveying track in the length direction of the product conveying track. A plurality of first side edge positioning mechanisms are installed on one side of the product conveying track in the length direction at intervals, and part of the first side edge positioning mechanisms are further provided with top clamping mechanisms. And the shifting fork carrying mechanism is arranged on the other side of the product conveying track. According to the multi-point welding fixture, the use requirement of multi-point welding of products can be met, meanwhile, the products can be limited and fixed through mutual matching of the first side edge positioning mechanism and the top clamping mechanism, the placement stability of the products during welding is guaranteed, and the welding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automation, in particular to an automatic welding device. Background Art

[0002] As a key link in modern manufacturing, automated welding technology is widely used in electronics, automobiles, aerospace and other industries. Although traditional automated welding equipment has improved production efficiency to a certain extent, it is mostly used for a single type of welding point, lacks flexibility and adaptability, and is difficult to cope with changing production needs. At the same time, equipment that can be used for multi-point welding still requires manual operation in the loading and unloading process, which increases labor costs. Utility Model Content

[0003] The purpose of the utility model is to provide an automatic welding device, the fork transport mechanism of the device can simultaneously push multiple products located on a transmission track to move forward, so that each product can replace a processing station each time it moves, and the welding mechanism at each processing station can weld one of the welding points of the material to meet the use requirements of multi-point welding of the product. At the same time, through the mutual cooperation of the first side positioning mechanism and the top clamping mechanism, the product can be limited and fixed to ensure the stability of its placement during welding and improve the welding accuracy.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] An automatic welding device, comprising

[0006] A product transmission device, the product transmission device comprising a product transmission track, and a transmission groove is provided on the top of the product transmission track along its length direction; a plurality of first side positioning mechanisms are installed at intervals along the length direction of one side of the product transmission track, and a top clamping mechanism is also installed on some of the first side positioning mechanisms;

[0007] A fork transport mechanism, wherein the fork transport mechanism is arranged on the other side of the product transport track;

[0008] A welding device, the welding device comprising a plurality of welding mechanisms arranged above a product transport track;

[0009] The tin slag cleaning mechanism is arranged close to the side of the product transmission track where the first side positioning mechanism is installed, and is located below the welding mechanism.

[0010] Furthermore, the fork transport mechanism includes a transport fixed frame, a transport rotating motor, a transport rotating arm, a transport connecting seat, and a first transport plate; a transport limit seat is also provided on the top of the transport fixed frame, and a first guide groove is also provided on the top of the transport limit seat; the transport rotating motor is installed at the bottom of the transport limit seat, and the output shaft of the transport rotating motor is movably inserted in the first guide groove; one end of the transport rotating arm is connected to the output shaft of the transport rotating motor, and the other end of the transport rotating arm extends to the top of the transport limit seat; a first Guide hole; a first connecting shaft is installed at one end of the transport connecting seat, and a first cam follower and a second cam follower are installed at the middle and lower parts of the first connecting shaft respectively; the first cam follower is arranged in the first guide hole and contacts with the inner wall of the first guide hole; the second cam follower is arranged in the first guide groove and contacts with the inner wall of the first guide groove; one side of the first transport plate is connected to the other end of the transport connecting seat, and a plurality of transport rods are installed at intervals in the length direction of the other side of the first transport plate; one end of each of the transport rods extends to the upper part of the transmission groove.

[0011] Furthermore, the first guide groove is of square structure, and the four corners of the square of the first guide groove are of convex arc structure; a transport limit block is also connected to the middle part of the first guide groove, and the output shaft of the first rotating motor is movable through the transport limit block arrangement; the transport limit block is of square structure, and the four corners of the transport limit block are respectively provided with a convex arc chamfer; the outer wall of the second cam follower contacts with the inner wall of the first guide groove and the outer wall of the transport limit block; the first guide hole is a waist-shaped through hole opened along the length direction of the transport rotating arm.

[0012] Furthermore, a guide slide rail module is installed at each of the two ends of the top of the transport and fixed frame; the first transport plate is arranged along the length direction of the transport and fixed frame; the guide slide rail module includes a first base plate arranged on the top of the transport and fixed frame, an X-axis slide rail assembly arranged on the first base plate along the length direction of the transport and fixed frame, an X-axis slide plate connected to the X-axis slide rail assembly, a Y-axis slide rail assembly arranged on the top of the X-axis slide plate along the width direction of the transport and fixed frame, and a Y-axis slide plate connected to the Y-axis slide rail assembly; the two ends of the bottom of the first transport plate are respectively connected to one end of the top of a Y-axis slide plate.

[0013] Furthermore, the first side positioning mechanism includes a first fixed bottom plate connected to one side of the product transmission track, a first fixed vertical plate connected to the top of one end of the first fixed bottom plate, a first slide rail arranged on the first fixed bottom plate perpendicular to the length direction of the product transmission track, and a first side positioning block slidably connected to the first slide rail; a first spring is also connected between one end of the first side positioning block and one side of the first fixed vertical plate, and the other end of the first side positioning block extends to the upper side of the transmission slot; a positioning protrusion is also provided in the middle of the end portion of the first side positioning block extending to the upper side of the transmission slot, and the side surface of the positioning protrusion is in an arc-shaped structure.

[0014] Furthermore, the top clamping mechanism includes a lifting and clamping cylinder installed on the other side of the first fixed vertical plate, a position sensor installed on the top of the first side positioning block, and a clamping lower pressure plate connected to the lifting and clamping cylinder; one end of the clamping lower pressure plate extends to the top of the transmission groove, and the end of the clamping lower pressure plate extending above the transmission groove is also provided with a first avoidance hole.

[0015] Furthermore, the welding device also includes a welding fixed frame; a welding Y-axis translation mechanism is installed on the welding fixed frame, and the welding Y-axis translation mechanism is driven and connected to a welding translation seat; a welding Z-axis lifting mechanism is installed on one side of the welding translation seat, and the welding Z-axis lifting mechanism is also driven and connected to a welding lifting plate; one side of the welding lifting plate is connected to a first fixed seat, and a plurality of welding mechanisms are installed at intervals on one side of the first fixed seat; the other side of the welding translation seat is connected to a first fixed bracket, and a plurality of tin feeding mechanisms are installed at intervals on one side of the first fixed bracket in the length direction, and each tin feeding mechanism is located above a corresponding welding mechanism.

[0016] Furthermore, the tin slag cleaning mechanism includes a tin slag box; a first through hole is opened on the top of the tin slag box, and a second through hole is opened at one end of the tin slag box; and an air blowing nozzle assembly arranged toward the second through hole is also installed at the end of the tin slag box with the second through hole.

[0017] By adopting the above scheme, the beneficial effects of the utility model are:

[0018] The shift fork transport mechanism of the utility model can simultaneously push multiple products located on the transmission track to move forward, so that each product can replace a processing station each time it moves, and the welding mechanism at each processing station can weld one of the welding points of the material to meet the use requirements of multi-point welding of the product. At the same time, through the mutual cooperation of the first side positioning mechanism and the top clamping mechanism, the product can be limited and fixed to ensure the stability of its placement during welding and improve the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the product transmission device of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the first side positioning mechanism and the top clamping mechanism of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the welding device of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the welding mechanism of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the tin feeding mechanism of the utility model;

[0025] Figure 7 It is a structural schematic diagram of the shift fork transport mechanism of the utility model;

[0026] Figure 8 It is a partial structural schematic diagram of the fork transport mechanism of the utility model;

[0027] The accompanying drawings illustrate:

[0028] 1. Product conveying device; 2. Fork transport mechanism; 3. Welding device; 4. Tin slag cleaning mechanism; 11. Product conveying track; 12. First side positioning mechanism; 13. Top clamping mechanism; 21. Transport fixed frame; 22. Transport rotating motor; 23. Transport rotating arm; 24. Transport connecting seat; 25. First transport plate; 26. Transport limit seat; 27. Transport limit block; 28. First cam follower; 29. ​​Second cam follower; 20. Transport rod; 31. Welding mechanism; 32. Welding fixed frame; 33. Welding Y-axis translation mechanism; 34. Welding translation seat; 35. Welding Z-axis lifting mechanism; 36. Welding lifting plate; 37. First fixed seat; 38. First fixed bracket; 39. Tin feeding mechanism; 121. First fixed bottom plate ;122, first fixed vertical plate;123, first side positioning block;124, first spring;125, positioning protrusion;131, lifting and clamping cylinder;132, position sensor;133, clamping lower pressure plate;134, first avoidance hole;211, guide slide rail module;311, first mounting seat;312, first lifting seat;313, second mounting seat;314, welding lifting cylinder;315, welding lifting seat;316, Luo iron head;317, tin delivery nozzle;318, lifting and adjusting screw;319, first guide rod;310, limiting sleeve;391, tin delivery mounting frame;392, coil shaft;393, tin delivery joint;394, first guide wheel;395, second guide wheel;396, driven wheel;397, driving wheel. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Reference Figures 1 to 8 As shown, the utility model provides an automatic welding device, in one embodiment, comprising

[0031] A product transmission device 1, the product transmission device 1 comprises a product transmission track 11, and a transmission groove is provided on the top of the product transmission track 11 along its length direction; a plurality of first side positioning mechanisms 12 are installed at intervals along the length direction of one side of the product transmission track 11, and a top clamping mechanism 13 is also installed on some of the first side positioning mechanisms 12;

[0032] A fork transport mechanism 2, wherein the fork transport mechanism 2 is arranged on the other side of the product transport track 11;

[0033] A welding device 3, the welding device 3 comprising a plurality of welding mechanisms 31 arranged above the product transport track 11;

[0034] The tin slag cleaning mechanism 4 is arranged close to a side of the product transmission track 11 where the first side positioning mechanism 12 is installed, and is located below the welding mechanism 31 .

[0035] Continue to refer to Figures 1 to 8 As shown, in this embodiment, the product transmission track 11 is connected to the upstream and downstream production lines. The upstream production line transmits the jig carrying the product to the transmission slot, and then the multiple jigs located on the transmission track are pushed forward at the same time by the fork transport mechanism 2, so that each jig can replace a processing station each time it moves, and the welding mechanism 31 at each processing station can weld one of the welding points of the material to meet the use requirements of multi-point welding of the product. At the same time, the product can be limited by the cooperation of the first side positioning mechanism 12 and the top clamping mechanism 13. The position is fixed to ensure the stability of its placement during welding and improve the welding accuracy. In addition, the tin slag cleaning mechanism 4 includes a tin slag box; a first through hole is opened on the top of the tin slag box, and a second through hole is opened at one end of the tin slag box; the end of the tin slag box with the second through hole is also equipped with a blowing nozzle assembly arranged toward the second through hole. After welding is completed, the welding mechanism 31 can move the iron head 316 into the tin slag box, and spray the cleaning agent or detergent in a mist form to the iron head 316 through the blowing nozzle assembly to remove the residual tin slag and increase its service life.

[0036] In one embodiment, the fork transport mechanism 2 includes a transport fixed frame 21, a transport rotating motor 22, a transport rotating arm 23, a transport connecting seat 24, and a first transport plate 25; a transport limit seat 26 is also provided on the top of the transport fixed frame 21, and a first guide groove is also provided on the top of the transport limit seat 26; the transport rotating motor 22 is installed at the bottom of the transport limit seat 26, and the output shaft of the transport rotating motor 22 is movably inserted in the first guide groove; one end of the transport rotating arm 23 is connected to the output shaft of the transport rotating motor 22, and the other end of the transport rotating arm 23 extends to the top of the transport limit seat 26; A first guide hole is opened in the middle; a first connecting shaft is installed at one end of the transport connecting seat 24, and a first cam follower 28 and a second cam follower 29 are installed in the middle and lower parts of the first connecting shaft respectively; the first cam follower 28 is arranged in the first guide hole and contacts with the inner wall of the first guide hole; the second cam follower 29 is arranged in the first guide groove and contacts with the inner wall of the first guide groove; one side of the first transport plate 25 is connected to the other end of the transport connecting seat 24, and a plurality of transport rods 20 are installed at intervals in the length direction of the other side of the first transport plate 25; one end of each of the transport rods 20 extends to the top of the transmission groove.

[0037] In this embodiment, the conveying rod 20 is of U-shaped structure, the U-shaped horizontal end of the conveying rod 20 is connected to one side of the bottom of the first conveying plate 25, the two vertical ends of the U-shaped conveying rod 20 are extended toward the top of the transmission groove, and the fixture in the transmission groove is located between the two vertical ends of the U-shaped conveying rod 20; at the same time, the first guide groove is of square structure, and the four corners of the square of the first guide groove are of convex arc structure; a conveying limit block 27 is also connected to the middle part of the first guide groove, and the output shaft of the first rotating motor is arranged to move through the conveying limit block 27; the conveying limit block 27 is of square structure, and the four corners of the conveying limit block 27 are respectively provided with a convex arc chamfer; the outer wall of the second cam follower 29 is in contact with the inner wall of the first guide groove and the outer wall of the conveying limit block 27; the first guide hole is a waist-shaped through hole opened along the length direction of the conveying rotating arm 23.

[0038] During operation, the transport rotating motor 22 drives the transport rotating arm 23 to rotate, and the first cam follower 28 and the second cam follower 29 can move along the first guide hole and the first guide groove respectively, thereby converting the circular motion into a linear motion, and driving the transport connecting seat 24 to perform forward and backward, left and right translational motions, thereby pushing multiple products forward at the same time through the transport rod 20, so that each product moves to a welding mechanism 31 at each movement, and each welding mechanism 31 can weld one of the welding points of the product, so that through a cycle of movement, the product can be multi-point welded, thereby improving work efficiency.

[0039] In addition, a guide slide rail module 211 is installed at each of the two ends of the top of the transport and fixing frame 21; the first transport plate 25 is arranged along the length direction of the transport and fixing frame 21; the guide slide rail module 211 includes a first base plate arranged on the top of the transport and fixing frame 21, an X-axis slide rail assembly arranged on the first base plate along the length direction of the transport and fixing frame 21, an X-axis slide plate connected to the X-axis slide rail assembly, a Y-axis slide rail assembly arranged on the top of the X-axis slide plate along the width direction of the transport and fixing frame 21, and a Y-axis slide plate connected to the Y-axis slide rail assembly; the two ends of the bottom of the first transport plate 25 are respectively connected to one end of the top of a Y-axis slide plate.

[0040] In this embodiment, the first transport plate 25 can be guided by the X-axis slide rail assembly and the Y-axis slide rail assembly when it moves to ensure the stability of its movement. At the same time, one end of one side of the X-axis slide plate is connected to a connecting block, and each connecting block is also equipped with a stop rod; one side of the Y-axis slide plate is also equipped with a stop block, and the stop block is arranged between the two stop rods. The stop block and the stop rod can limit the moving stroke of the Y-axis slide plate to improve the safety of equipment operation.

[0041] In one embodiment, the first side positioning mechanism 12 includes a first fixed bottom plate 121 connected to one side of the product transmission track 11, a first fixed vertical plate 122 connected to the top of one end of the first fixed bottom plate 121, a first slide rail arranged on the first fixed bottom plate 121 perpendicular to the length direction of the product transmission track 11, and a first side positioning block 123 slidably connected to the first slide rail; a first spring 124 is also connected between one end of the first side positioning block 123 and one side of the first fixed vertical plate 122, and the other end of the first side positioning block 123 is extended to the upper side of the transmission slot; a positioning protrusion 125 is also provided in the middle of the end portion of the first side positioning block 123 extending to the upper side of the transmission slot, and the side surface of the positioning protrusion 125 is in an arc-shaped structure.

[0042] In this embodiment, a V-shaped groove is further provided at one end of the jig carrying the product corresponding to the positioning protrusion 125. When the jig moves in the transmission groove, its end will generate a thrust on the first side positioning block 123. The first side positioning block 123 retreats and squeezes the first spring 124. Under the influence of the restoring force of the first spring 124, the first side positioning block 123 will push the jig to move to one side of the transmission groove through the positioning protrusion 125 to complete the preliminary positioning of the side. At this time, if the jig is in the welding position, the top clamping mechanism 13 will press and position the product so that the welding mechanism 31 can weld the product.

[0043] In addition, the top clamping mechanism 13 includes a lifting clamping cylinder 131 installed on the other side of the first fixed vertical plate 122, a position sensor 132 installed on the top of the first side positioning block 123, and a clamping lower pressing plate 133 connected to the lifting clamping cylinder 131; one end of the clamping lower pressing plate 133 extends to the top of the transmission slot, and the end of the clamping lower pressing plate 133 extending above the transmission slot is also provided with a first avoidance hole 134. When the position sensor 132 detects that there is a product in front, the lifting clamping cylinder 131 drives the clamping lower pressing plate 133 to descend, thereby pressing the product on the fixture to limit the position, and the end of the clamping lower pressing plate 133 extending above the transmission slot is also provided with a first avoidance hole 134, and the first avoidance hole 134 is opened corresponding to the corresponding point to be welded of the product to form an avoidance, so as to facilitate welding by the welding mechanism 31.

[0044] In one embodiment, the welding device 3 also includes a welding fixed frame 32; a welding Y-axis translation mechanism 33 is installed on the welding fixed frame 32, and the welding Y-axis translation mechanism 33 is driven and connected to a welding translation seat 34; a welding Z-axis lifting mechanism 35 is installed on one side of the welding translation seat 34, and the welding Z-axis lifting mechanism 35 is also driven and connected to a welding lifting plate 36; one side of the welding lifting plate 36 is connected to a first fixed seat 37, and a plurality of welding mechanisms 31 are installed at intervals on one side of the first fixed seat 37; the other side of the welding translation seat 34 is connected to a first fixed bracket 38, and a plurality of tin delivery mechanisms 39 are installed at intervals in the length direction of one side of the first fixed bracket 38, and each tin delivery mechanism 39 is correspondingly located above a welding mechanism 31.

[0045] In this embodiment, the welding fixed frame 32 includes a gantry and a first bracket arranged on one side of the gantry. The welding Y-axis translation mechanism 33 includes a linear module arranged on the top of the gantry (such as a transmission method of a motor screw) and a slide rail assembly arranged on the top of the first bracket; one end of the bottom of the welding translation seat 34 is connected to the linear module, and the other end of the bottom of the welding translation seat 34 is connected to the slide rail assembly; the welding Z-axis lifting mechanism 35 is installed on one side of the welding translation seat 34. The welding Z-axis lifting mechanism 35 adopts a linear module (such as a transmission method of a motor screw). Under the mutual cooperation of the welding Z-axis lifting mechanism 35 and the welding X-axis translation mechanism, the welding mechanism 31 can be driven to perform translation and lifting movements, so that the welding mechanism 31 can weld the product. In this embodiment, five groups of welding mechanisms 31 are provided, and correspondingly, five groups of tin feeding mechanisms 39 are also provided. Each group of welding mechanisms 31 can weld one of the points of the product. They are relatively independent of each other and do not interfere with each other, which can meet the use requirements of multi-point welding of the product and improve work efficiency.

[0046] At the same time, the tin feeding mechanism 39 includes a tin feeding mounting frame 391 installed on one side of the first fixed bracket 38, a coil shaft 392 installed on the upper part of one side of the tin feeding mounting frame 391, a tin feeding joint 393 installed on the lower part of one side of the tin feeding mounting frame 391, and a tin feeding power assembly installed in the middle of the tin feeding mounting frame 391; the tin feeding power assembly includes a first guide wheel 394 installed in the middle of one side of the tin feeding mounting frame 391, a second guide wheel 395 arranged below the first guide wheel 394, a driven wheel 396 arranged on one side below the second guide wheel 395, a driving wheel 397 arranged on one side of the driven wheel 396, and a rotating drive motor installed on the tin feeding mounting frame 391 and connected to the driving wheel 397.

[0047] The tin coil can be manually installed on the coil shaft 392 and unfolded so that it passes around the first guide wheel 394 and the second guide wheel 395 in turn, and then passes through between the driven wheel 396 and the driving wheel 397, and then passes through the tin feeding joint 393, and is transmitted into the tin feeding nozzle 317 of the welding mechanism 31. The driving wheel 397 is meshed and connected with the driven wheel 396, and the rotating drive motor can drive the driving wheel 397 to rotate, thereby feeding the tin wire.

[0048] In one embodiment, the welding mechanism 31 includes a first mounting seat 311 installed on one side of the first fixed seat 37, a first lifting seat 312 slidably arranged on one side of the first mounting seat 311, a second mounting seat 313 installed on one side of the first lifting seat 312, a welding lifting cylinder 314 installed on the second mounting seat 313, and a welding lifting seat 315 connected to the welding lifting cylinder 314; a soldering head 316 and a tin feeding nozzle 317 are installed on the welding lifting seat 315; a lifting adjustment screw 318 is also installed on the top of the first lifting seat 312.

[0049] In this embodiment, the welding lifting cylinder 314 can drive the welding lifting seat 315 to drive the iron head 316 and the tin feeding nozzle 317 to rise and fall so as to weld the product. At the same time, a lifting adjustment screw 318 is also provided. According to the actual use environment, the position of the first lifting seat 312 can be adjusted by rotating the lifting adjustment screw 318. In addition, the bottom of the first lifting seat 312 is also connected to an adjustment seat, and an adjustment hole is provided on one side of the adjustment seat. An adjustment rod is connected to one side of the second mounting seat 313, and the adjustment rod is inserted into the adjustment hole (the adjustment rod can move relative to the adjustment hole). A gap is provided at one end of the adjustment seat to pass through the adjustment hole, and a first locking hole is provided at the bottom of the adjustment seat to pass through the bottom and top of the gap. After adjusting the position of the second mounting seat 313 according to the actual use environment, a screw is locked into the first locking hole to lock it.

[0050] In one embodiment, the welding lifting seat 315 is connected with a first connecting block, a first connecting rod installed on the first connecting block in a vertical direction, a first rotating joint connected to the bottom of the first connecting rod, a first rotating block whose one end is rotatably connected to the first rotating joint, and a second rotating joint rotatably connected to the other end of the first rotating block; the tin feeding nozzle 317 is installed on the second rotating joint, and one end of the tin feeding nozzle 317 is tilted toward the lower direction of the iron head 316. The tilt angle of the tin feeding nozzle 317 can be adjusted according to the actual use environment. In this embodiment, the angle between the tin feeding nozzle 317 and the iron head 316 is 45°.

[0051] In addition, a first slide rail is installed along the length direction of one side of the first fixed seat 37, and the first mounting seat 311 is slidably connected to the first slide rail. The first mounting seat 311 can be manually slid to adapt the position of the welding mechanism 31 to meet different use environments. At the same time, a first limit horizontal plate is connected to each end of one side of the first fixed seat 37, and a first guide rod 319 is connected between the two first limit horizontal plates; the first mounting seat 311 is sleeved on the first guide rod 319. Through the first guide rod 319, the first mounting seat 311 can be guided when sliding to ensure its sliding stability, and the welding mechanism 31 also includes two limit sleeves 310; the two limit sleeves 310 are installed on the first guide rod 319, and the two limit sleeves 310 are respectively arranged near one end of the first mounting seat 311; the outer wall of the limit sleeve 310 is also spaced apart and provided with a plurality of first locking holes in the circumferential direction. After the position of the first mounting seat 311 is adjusted, a screw is inserted into the first locking hole of the limiting sleeve 310 to limit and fix the first mounting seat 311 to ensure the stability of the installation of the welding mechanism 31 .

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic welding device, characterized in that: include A product transmission device, the product transmission device comprising a product transmission track, and a transmission groove is provided on the top of the product transmission track along its length direction; a plurality of first side positioning mechanisms are installed at intervals along the length direction of one side of the product transmission track, and a top clamping mechanism is also installed on some of the first side positioning mechanisms; A fork transport mechanism, wherein the fork transport mechanism is arranged on the other side of the product transport track; A welding device, the welding device comprising a plurality of welding mechanisms arranged above a product transport track; The tin slag cleaning mechanism is arranged close to the side of the product transmission track where the first side positioning mechanism is installed, and is located below the welding mechanism.

2. The automatic welding device according to claim 1, characterized in that: The fork transport mechanism comprises a transport fixed frame, a transport rotating motor, a transport rotating arm, a transport connecting seat, and a first transport plate; a transport limit seat is also provided on the top of the transport fixed frame, and a first guide groove is also provided on the top of the transport limit seat; the transport rotating motor is installed at the bottom of the transport limit seat, and the output shaft of the transport rotating motor is movably inserted in the first guide groove; one end of the transport rotating arm is connected to the output shaft of the transport rotating motor, and the other end of the transport rotating arm extends to the top of the transport limit seat for arrangement; a first guide hole is provided in the middle of the transport rotating arm; a first connecting shaft is installed at one end of the transport connecting seat, and a first cam follower and a second cam follower are respectively installed at the middle and lower parts of the first connecting shaft; the first cam follower is arranged in the first guide hole and contacts with the inner wall of the first guide hole; the second cam follower is arranged in the first guide groove and contacts with the inner wall of the first guide groove; one side of the first transport plate is connected to the other end of the transport connecting seat, and a plurality of transport rods are installed at intervals in the length direction of the other side of the first transport plate; one end of each of the transport rods extends to the top of the transmission groove for arrangement.

3. The automatic welding device according to claim 2, characterized in that: The first guide groove is square in structure, and the four corners of the square of the first guide groove are convex arc-shaped; a transport limit block is also connected to the middle of the first guide groove, and the output shaft of the first rotating motor is movable through the transport limit block; the transport limit block is square in structure, and the four corners of the transport limit block are each provided with a convex arc-shaped chamfer; the outer wall of the second cam follower contacts the inner wall of the first guide groove and the outer wall of the transport limit block; the first guide hole is a waist-shaped through hole opened along the length direction of the transport rotating arm.

4. The automatic welding device according to claim 3, characterized in that: A guide rail module is installed at each of the two ends of the top of the transport and fixed frame; the first transport plate is arranged along the length direction of the transport and fixed frame; the guide rail module includes a first base plate arranged on the top of the transport and fixed frame, an X-axis rail assembly arranged on the first base plate along the length direction of the transport and fixed frame, an X-axis slide plate connected to the X-axis rail assembly, a Y-axis rail assembly arranged on the top of the X-axis slide plate along the width direction of the transport and fixed frame, and a Y-axis slide plate connected to the Y-axis rail assembly; the two ends of the bottom of the first transport plate are respectively connected to one end of the top of a Y-axis slide plate.

5. The automatic welding device according to claim 1, characterized in that: The first side positioning mechanism includes a first fixed bottom plate connected to one side of the product transmission track, a first fixed vertical plate connected to the top of one end of the first fixed bottom plate, a first slide rail arranged on the first fixed bottom plate perpendicular to the length direction of the product transmission track, and a first side positioning block slidably connected to the first slide rail; a first spring is also connected between one end of the first side positioning block and one side of the first fixed vertical plate, and the other end of the first side positioning block extends to the upper side of the transmission slot; a positioning protrusion is also provided in the middle of the end portion of the first side positioning block extending to the upper side of the transmission slot, and the side surface of the positioning protrusion is in an arc-shaped structure.

6. The automatic welding device according to claim 5, characterized in that: The top clamping mechanism includes a lifting and clamping cylinder installed on the other side of the first fixed vertical plate, a position sensor installed on the top of the first side positioning block, and a clamping lower pressure plate connected to the lifting and clamping cylinder; one end of the clamping lower pressure plate extends to the top of the transmission groove, and the end of the clamping lower pressure plate extending above the transmission groove is also provided with a first avoidance hole.

7. The automatic welding device according to claim 1, characterized in that: The welding device also includes a welding fixed frame; a welding Y-axis translation mechanism is installed on the welding fixed frame, and the welding Y-axis translation mechanism is driven and connected to a welding translation seat; a welding Z-axis lifting mechanism is installed on one side of the welding translation seat, and the welding Z-axis lifting mechanism is also driven and connected to a welding lifting plate; one side of the welding lifting plate is connected to a first fixed seat, and a plurality of welding mechanisms are installed at intervals on one side of the first fixed seat; the other side of the welding translation seat is connected to a first fixed bracket, and a plurality of tin feeding mechanisms are installed at intervals on one side of the first fixed bracket in the length direction, and each tin feeding mechanism is correspondingly located above a welding mechanism.

8. The automatic welding device according to claim 1, characterized in that: The tin slag cleaning mechanism comprises a tin slag box; a first through hole is formed on the top of the tin slag box, and a second through hole is formed on one end of the tin slag box; an air blowing nozzle assembly arranged toward the second through hole is also installed on the end of the tin slag box with the second through hole.

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