Bottom plate spot welding device
By opening cutting holes on the shearing blade and setting them on the side of the guide channel, two pieces of silver wires are cut out with one knife, which solves the problem of low production efficiency in the prior art, reduces the welding station time and improves production efficiency.
Patent Information
- Application Number
- CN202421093343.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The production efficiency of existing thermal protector base plate spot welding equipment is low, and it is necessary to wait for the previous process to complete before the next process is carried out, resulting in silver wire feeding, shearing and conveying in sequence, resulting in different process times and waiting for the previous process. Only after completing the next process is completed.
The cutting hole is opened on the shearing blade and the shearing blade is set on the side of the guide channel, so that two pieces of silver wire can be cut out with one knife, which reduces the process and improves the shearing efficiency. The shearing process is carried out through the silver wire push mechanism The silver wire is pushed to the welding positioning table, reducing the station time during the welding process.
By cutting out two pieces of silver wire in one cut, the station time during the welding process is reduced, from the original 6 stations to 5 stations, improving production efficiency.
Smart Images
Figure CN222243531U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of silver spot welding equipment for a bottom plate of a thermal protector, in particular to a bottom plate spot welding device. Background Art
[0002] The thermal protector is a combination of two pieces of different alloys. It will generate heat when current passes through it. Since the expansion coefficients of the two different alloys are different, the alloys are bound to bend in one direction. When the contacts leave, the power is cut off. The bending speed is proportional to the current passing through, thus protecting the electrical equipment. When manufacturing the thermal protector, it is usually necessary to weld silver dots on the base plate first. The silver dots refer to the static contacts, that is, the static contacts are welded on the base plate. The current spot welding equipment includes a shear and a silver wire conveying assembly. The feeding, shearing and conveying of the silver wire are carried out in sequence. The shearing process can only be carried out after the silver wire is fed, and then the silver wire is conveyed to the welding position. The process completion time of different workstations is different. Therefore, it is necessary to wait for the completion of the previous process before proceeding to the next process, which reduces production efficiency. Utility Model Content
[0003] The utility model aims to provide a bottom plate spot welding device, by arranging a shearing blade on the side of a guide channel and opening a cutting hole on the shearing blade, so that the shearing blade can shear two sections of silver wire with one knife, thereby improving the shearing efficiency, reducing the process and improving the production efficiency.
[0004] The utility model provides the following technical scheme: a bottom plate spot welding device comprises a platform, on which a silver wire pushing mechanism, a welding gun mechanism, a protector feeding mechanism, a silver wire feeding mechanism, a silver wire shearing mechanism and a welding positioning platform are fixed, the welding positioning platform is located below the welding gun mechanism, the protector is transported to the welding positioning platform by the protector feeding mechanism, the silver wire is transported to the welding positioning platform by the silver wire feeding mechanism, the silver wire shearing mechanism and the silver wire pushing mechanism in sequence, so that the protector and the silver wire are distributed up and down, the protector and the silver wire are welded by the welding gun mechanism, the silver wire shearing mechanism It includes a mounting plate fixed on the platform, the upper end of the mounting plate is rotatably connected to a lifting plate through a pin shaft, the lower end of the lifting plate is connected to a shearing blade, a silver wire pushing guide block is arranged below the lifting plate, the silver wire pushing guide block is fixed on the platform, a guide channel and a shearing groove are provided on the silver wire pushing guide block, the shearing groove is located on the side of the guide channel, a cutting hole is provided on the surface of the shearing blade, the cutting hole is used to insert the silver wire and shear the silver wire, the silver wire pushing mechanism is located on the other side of the guide channel, and is used to push the sheared silver wire to the welding positioning table.
[0005] In order to control the up and down movement of the lifting plate and drive the shear blade to shear the silver wire, the lower end of the platform is connected to a mounting seat, a shear cylinder is fixed on the mounting seat, the upper end of the shear cylinder is connected to a moving block, a push rod is connected to the moving block, a bushing is sleeved on the surface of the push rod, the bushing is fixed in the platform, and the push rod is connected to the side of the lifting plate.
[0006] In order to push the silver wire to the welding positioning table, the silver wire pushing mechanism includes a silver wire pushing seat, which is located on the other side of the guide channel. A silver wire pushing cylinder is fixed on the silver wire pushing seat, and a connecting block is connected to the telescopic end of the silver wire pushing cylinder. A silver wire pushing block is fixed on the connecting block, and a push rod is fixed in the silver wire pushing block. The push rod is used to be inserted into the guide channel to push the silver wire.
[0007] In order to deliver the protector to the welding positioning table, the protector feeding mechanism includes a protector feeding base and a protector feeding block, a protector feeding cylinder is fixed on the protector feeding base, the telescopic end of the protector feeding cylinder is connected to a protector feeding push block, the upper end of the protector feeding push block is connected to a protector feeding push rod, the protector feeding push rod extends into the protector feeding block to transport the protector, a protector feeding channel is provided in the protector feeding block, the protector feeding push rod and the protector feeding channel are in the same straight line, a protector feed trough is provided on the surface of the protector feeding block, and the protector feed trough is connected to the protector feeding channel.
[0008] In order to ensure that the silver wire can be transported to the lower end of the protector and facilitate welding of the two, the welding positioning platform includes a support, a lifting slide rail is fixed on the side of the support, a lifting slider slides on the lifting slide rail, a welding adjustment block is connected to the lifting slider, a welding platform is fixed on the welding adjustment block, a protector positioning groove is provided on the surface of the welding platform, a silver wire height positioning column is connected to the lower end of the protector positioning groove, the silver wire height positioning column is fixed in the welding platform by a fastener, a silver wire welding groove is provided in the silver wire height positioning column, and the height of the silver wire welding groove is lower than the height of the protector positioning groove.
[0009] In order to push the silver wire into the shearing mechanism, the silver wire feeding mechanism includes a silver wire feeding base, a silver wire feeding cylinder is fixed on the silver wire feeding base, the upper end of the silver wire feeding cylinder is connected to a silver wire feeding support, the silver wire feeding support is connected to the telescopic end of the silver wire feeding cylinder, a silver wire feeding channel is opened in the silver wire feeding support, a cylinder mounting seat is also fixed on the silver wire feeding support, the cylinder mounting seat is located above the silver wire feeding channel, a silver wire feeding locking cylinder is connected to the cylinder mounting seat, the lower end of the silver wire feeding locking cylinder is connected to a silver wire feeding locking block, the lower end of the silver wire feeding locking block is connected to a silver wire feeding pressure block, the silver wire feeding pressure block moves downward to lock the silver wire between the silver wire feeding pressure block and the silver wire feeding support, so that the silver wire moves with the silver wire feeding cylinder.
[0010] In order to prevent the silver wire from warping during feeding, a silver wire feeding guide block is provided at the other end of the silver wire feeding channel, and the silver wire is inserted into the silver wire feeding guide block.
[0011] In order to control the height position of the welding gun, the welding gun mechanism includes a welding gun bracket, a welding gun slide rail is fixed on the welding gun bracket, a welding gun slider slides on the welding gun slide rail, a welding gun push block is fixed on the welding gun slider, a welding gun is fixed on the side of the welding gun slider, a welding gun is fixed on the upper end of the welding gun bracket, the welding gun cylinder is fixed, the welding gun cylinder is located above the welding gun slide rail, and the telescopic end of the welding gun cylinder is connected to the welding gun push block.
[0012] Compared with the prior art, the utility model has the following beneficial effects: by opening a cutting hole on the shearing blade, the silver wire is sheared by using the cutting hole, and the shearing blade is arranged on the side of the guide channel, so that one knife can shear two sections of silver wire, thereby improving the shearing efficiency and reducing the shearing process in the welding process. In the welding process of two silver wires, the time of the previous 6 stations is reduced to the current 5 stations, thereby improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;
[0015] Figure 2 It is a top view of the overall structure of the utility model;
[0016] Figure 3 It is a front view of the overall structure of the utility model;
[0017] Figure 4It is a three-dimensional diagram of the welding positioning table of the utility model;
[0018] Figure 5 yes Figure 4 A partial enlarged schematic diagram of the middle A area;
[0019] Figure 6 It is a three-dimensional diagram of the welding gun mechanism of the utility model;
[0020] Figure 7 It is a three-dimensional diagram of the silver wire feeding mechanism of the utility model;
[0021] Figure 8 It is a three-dimensional diagram of the feed mechanism of the protector of the utility model;
[0022] Fig. 9 It is a three-dimensional diagram of the silver wire shearing mechanism and the silver wire pushing mechanism of the utility model;
[0023] Fig.10 It is a cross-sectional view of the silver wire pushing mechanism of the utility model;
[0024] Fig.11 It is a cross-sectional view of the silver wire shearing mechanism of the utility model;
[0025] In the figure: 1, platform; 2, silver wire pushing mechanism; 21, silver wire pushing seat; 22, silver wire pushing cylinder; 23, connecting block; 24, silver wire pushing block; 3, welding gun mechanism; 31, welding gun bracket; 32, welding gun slide rail; 33, welding gun cylinder; 34, welding gun push block; 35, welding gun slider; 36, welding gun; 4, protector feeding mechanism; 41, protector feeding base; 42, protector feeding cylinder; 43, protector feeding push block; 44, protector feeding push rod; 45, protector feeding block; 451, protector feeding trough; 452, protector feeding channel; 5, silver wire feeding mechanism; 51, silver wire feeding base; 52, silver wire feeding cylinder; 53, silver wire feeding support; 531, silver wire feeding Channel; 532, cylinder mounting seat; 54, silver wire feed locking cylinder; 55, silver wire feed locking block; 56, silver wire feed pressure block; 57, silver wire feed guide block; 6, silver wire shearing mechanism; 61, mounting seat; 62, shearing cylinder; 621, moving block; 622, bushing; 623, push rod; 63, lifting plate; 64, mounting plate; 65, shearing blade; 651, cutting hole; 66, silver wire pushing guide block; 661, guide channel; 662, shearing groove; 7, welding positioning table; 71, support; 72, lifting slide rail; 73, lifting slider; 74, welding adjustment block; 75, welding platform; 751, protector positioning groove; 752, silver wire height positioning column; 753, silver wire welding groove. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example
[0027] See also Figures 1 to 3 The utility model provides a technical solution: a bottom plate spot welding device, including a platform 1, on which a silver wire pushing mechanism 2, a welding gun mechanism 3, a protector feeding mechanism 4, a silver wire feeding mechanism 5, a silver wire shearing mechanism 6 and a welding positioning platform 7 are fixed, and the welding positioning platform 7 is located below the welding gun mechanism 3, and the protector is transported to the welding positioning platform 7 through the protector feeding mechanism 4, and the silver wire is transported to the welding positioning platform 7 through the silver wire feeding mechanism 5, the silver wire shearing mechanism 6 and the silver wire pushing mechanism 2 in sequence, and the silver wire feeding mechanism 5 controls the feeding of the silver wire, transports the silver wire to the silver wire shearing mechanism 6, and shears the silver wire, and the sheared silver wire is on one side of the silver wire pushing mechanism 2, and the sheared silver wire is pushed to the welding positioning platform 7 by the silver wire pushing mechanism 2, and is located at the lower end of the protector, and the protector and the silver wire are welded by the welding gun mechanism 3, such as Figures 9 to 11As shown, the silver wire shearing mechanism 6 includes a mounting plate 64 fixed on the platform 1, the upper end of the mounting plate 64 is rotatably connected to a lifting plate 63 through a pin shaft, and the lower end of the lifting plate 63 is connected to a shearing blade 65, and the shearing blade 65 is moved up and down by the rotation of the lifting plate 63 to shear the silver wire, and a silver wire pushing guide block 66 is arranged below the lifting plate 63, and the silver wire pushing guide block 66 is fixed on the platform 1, and a guide channel 661 and a shearing groove 662 are provided on the silver wire pushing guide block 66, and the shearing groove 662 is located at the guide channel 661. Toward the side of the channel 661, the shearing groove 662 is used to insert the shearing blade 65, so that the shearing blade 65 moves up and down to shear the silver wire. A cutting hole 651 is opened on the surface of the shearing blade 65. The cutting hole 651 is used to penetrate the silver wire and shear the silver wire. The sheared silver wire falls into the guide channel 661. The silver wire pushing mechanism 2 is located on the other side of the guide channel 661. The sheared silver wire is pushed to the welding positioning table 7 by the silver wire pushing mechanism 2, so that the silver wire is located at the lower end of the protector, and then the silver wire is welded by the welding gun mechanism 3. It is connected to the protector to complete the welding of the static contacts on the protector. The technical solution sets the shear blade 65 on the side of the guide channel 661. When the equipment is first run, the silver wire extends into the guide channel 661. The movement of the shear blade 65 can cut the silver wire into three sections, one section is located in the guide channel 661, one section is located in the cutting hole 651 of the shear blade 65, and the other section is located in the silver wire feeding mechanism 5. The existing equipment generally advances the material, shears, pushes, and then welds. The feeding, shearing and pushing processes are performed in sequence. Each welding needs to wait for the three stations to be completed before the next welding can be performed. It takes six stations to push the silver wire into place twice. After shearing, the technical solution can produce two sections of silver wire, which improves the shearing efficiency of the silver wire. The process is advances the material, shears and pushes, feeds and pushes. It only needs to execute two push and feed processes in sequence to push the two sections of silver wire into the guide channel 661. It only takes five stations to push the silver wires at both ends into place, which improves the production efficiency of the equipment.
[0028] like Fig.11 As shown, the lower end of the platform 1 is connected to a mounting base 61, a shearing cylinder 62 is fixed on the mounting base 61, the upper end of the shearing cylinder 62 is connected to a moving block 621, a push rod 623 is connected to the moving block 621, a bushing 622 is sleeved on the surface of the push rod 623, the bushing 622 is fixed in the platform 1, the push rod 623 is connected to the side of the lifting plate 63, the moving block 621 is controlled to move up and down by the extension and retraction of the shearing cylinder 62, so that the push rod 623 moves up and down, and the lifting plate 63 is further lifted, driving the shear blade 65 to shear up and down.
[0029] like Fig.10As shown, the silver wire pushing mechanism 2 includes a silver wire pushing seat 21, which is fixed on the platform 1. The silver wire pushing seat 21 is located on the other side of the guide channel 661. A silver wire pushing cylinder 22 is fixed on the silver wire pushing seat 21. The telescopic end of the silver wire pushing cylinder 22 is connected to a connecting block 23. A silver wire pushing block 24 is fixed on the connecting block 23. A push rod is fixed in the silver wire pushing block 24. The push rod is used to be inserted into the guide channel 661 to push the silver wire. The movement of the silver wire pushing block 24 is controlled by the telescopic movement of the silver wire pushing cylinder 22, and the movement of the push rod is further controlled so that the push rod extends into the guide channel 661 of the silver wire pushing guide block 66, and the silver wire is pushed to the welding position for welding.
[0030] like Figure 8 As shown, the protector feeding mechanism 4 includes a protector feeding base 41 and a protector feeding block 45. A protector feeding cylinder 42 is fixed on the protector feeding base 41. The telescopic end of the protector feeding cylinder 42 is connected to a protector feeding push block 43. The upper end of the protector feeding push block 43 is connected to a protector feeding push rod 44. The protector feeding push rod 44 extends into the protector feeding block 45 to transport the protector. A protector feeding channel 452 is opened in the protector feeding block 45. The protector feeding push rod 44 On the same line as the protector feeding channel 452, a protector feed groove 451 is opened on the surface of the protector feeding block 45, and the protector feed groove 451 is connected with the protector feeding channel 452. The protector is placed into the protector feeding groove 451 of the protector feeding block 45 through the protector feed groove 451, and then the protector feeding cylinder 42 controls the movement of the protector feeding push block 43 and the protector feeding push rod 44 to transport the protector from the protector feeding groove 451 to the welding positioning table 7.
[0031] like Figure 4 and 5As shown, the welding positioning platform 7 includes a support 71, a lifting rail 72 is fixed on the side of the support 71, a lifting slider 73 slides on the lifting rail 72, a welding adjustment block 74 is connected to the lifting slider 73, a welding platform 75 is fixed on the welding adjustment block 74, a support block 76 is arranged below the welding adjustment block 74, a protector positioning groove 751 is opened on the surface of the welding platform 75, a silver wire height positioning column 752 is connected to the lower end of the protector positioning groove 751, and the silver wire height positioning column 752 is fixed to the welding platform 75 by fasteners 5, the silver wire height positioning column 752 is connected to the support block 76, and a silver wire welding groove 753 is opened in the silver wire height positioning column 752. The height of the silver wire welding groove 753 is lower than the height of the protector positioning groove 751, so that the position of the protector is located at the upper end of the silver wire, which is convenient for welding the two together. The height of the welding adjustment block 74 is positioned by the support block 76 and the silver wire height positioning column 752, and the height of the welding platform 75 is further controlled. The welding adjustment block 74 is connected to the lifting slider 73, which is convenient for adjusting its height position.
[0032] like Figure 7 As shown, the silver wire feeding mechanism 5 includes a silver wire feeding base 51, a silver wire feeding cylinder 52 is fixed on the silver wire feeding base 51, the upper end of the silver wire feeding cylinder 52 is connected to a silver wire feeding support 53, the silver wire feeding support 53 is connected to the telescopic end of the silver wire feeding cylinder 52, a silver wire feeding channel 531 is opened in the silver wire feeding support 53, a cylinder mounting seat 532 is also fixed on the silver wire feeding support 53, the cylinder mounting seat 532 is located above the silver wire feeding channel 531, a silver wire feeding locking cylinder 54 is connected to the cylinder mounting seat 532, and the lower end of the silver wire feeding locking cylinder 54 is connected to a silver wire feeding lock cylinder 54. Tightening block 55, the lower end of the silver wire feeding locking block 55 is connected with a silver wire feeding pressing block 56, the silver wire feeding pressing block 56 moves downward to lock the silver wire between the silver wire feeding pressing block 56 and the silver wire feeding support 53, so that the silver wire moves with the telescopic end of the silver wire feeding cylinder 52, which can drive the feeding of the silver wire and transport the silver wire to the silver wire shearing mechanism 6. After transporting to the right place, the silver wire feeding locking cylinder 54 can be loosened to make the silver wire feeding locking block 55 rise, so that the silver wire feeding pressing block 56 no longer presses the silver wire, and at this time the silver wire feeding cylinder 52 can be reset to prepare for feeding the silver wire again.
[0033] A silver wire feed guide block 57 is provided at the other end of the silver wire feed channel 531, and the silver wire is inserted into the silver wire feed guide block 57. The upper surface of the silver wire feed guide block 57 is connected to a cover plate via fasteners. The cover plate prevents the silver wire feed from warping and keeps the fed silver wire level.
[0034] like Figure 6As shown, the welding gun mechanism 3 includes a welding gun bracket 31, a welding gun slide rail 32 is fixed on the welding gun bracket 31, a welding gun slider 35 slides on the welding gun slide rail 32, a welding gun push block 34 is fixed on the welding gun slider 35, a welding gun 36 is fixed on the side of the welding gun slider 35, and a welding gun cylinder 33 is fixed on the upper end of the welding gun bracket 31. The welding gun cylinder 33 is located above the welding gun slide rail 32, and the telescopic end of the welding gun cylinder 33 is connected to the welding gun push block 34. The up and down movement of the welding gun push block 34 is controlled by the welding gun cylinder 33, and the position of the welding gun slider 35 on the welding gun slide rail 32 is further controlled, and the height position of the welding gun 36 is adjusted for welding.
[0035] The process of spot welding of the base plate: the protector is sent to the welding positioning table through the protector feeding mechanism, the silver wire feeding mechanism feeds the silver wire into the silver wire shearing mechanism, and the cutting hole on the shearing blade is used. At the same time, the shearing blade is set on the side of the guide channel, so that the shearing blade can cut out two silver wire segments in one knife, thereby improving the shearing efficiency of the silver wire. In this way, the number of shearing processes can be reduced in the welding process of multiple silver wires, and the production efficiency is improved. The sheared silver wire is pushed to the welding positioning table by the silver wire pushing mechanism, so that the silver wire is located below the protector, and then the welding gun mechanism is used to weld the silver wire below the protector to complete the welding of the silver spot.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A bottom plate spot welding device, including a platform, characterized in that: A silver wire pushing mechanism, a welding gun mechanism, a protector feeding mechanism, a silver wire feeding mechanism, a silver wire shearing mechanism and a welding positioning platform are fixed on the platform. The welding positioning platform is located below the welding gun mechanism. The protector is transported to the welding positioning platform through the protector feeding mechanism. The silver wire is transported to the welding positioning platform through the silver wire feeding mechanism, the silver wire shearing mechanism and the silver wire pushing mechanism in turn, so that the protector and the silver wire are distributed up and down. The protector and the silver wire are welded by the welding gun mechanism. The silver wire shearing mechanism includes a mounting plate fixed on the platform. The upper end of the mounting plate is rotatably connected with a lifting plate through a pin shaft. The lower end of the lifting plate is connected with a shearing blade. A silver wire pushing guide block is arranged below the lifting plate. The silver wire pushing guide block is fixed on the platform. A guide channel and a shearing groove are provided on the silver wire pushing guide block. The shearing groove is located on the side of the guide channel. A cutting hole is provided on the surface of the shearing blade. The cutting hole is used to penetrate the silver wire and shear the silver wire. The silver wire pushing mechanism is located on the other side of the guide channel and is used to push the sheared silver wire to the welding positioning platform.
2. The bottom plate spot welding device according to claim 1, characterized in that: The lower end of the platform is connected to a mounting seat, a shear cylinder is fixed on the mounting seat, the upper end of the shear cylinder is connected to a moving block, a push rod is connected to the moving block, a bushing is sleeved on the surface of the push rod, the bushing is fixed in the platform, and the push rod is connected to the side of the lifting plate.
3. The bottom plate spot welding device according to claim 1, characterized in that: The silver wire pushing mechanism includes a silver wire pushing seat, which is located on the other side of the guide channel. A silver wire pushing cylinder is fixed on the silver wire pushing seat. The telescopic end of the silver wire pushing cylinder is connected to a connecting block. A silver wire pushing block is fixed on the connecting block. A push rod is fixed in the silver wire pushing block. The push rod is used to be inserted into the guide channel to push the silver wire.
4. The bottom plate spot welding device according to claim 1, characterized in that: The protector feeding mechanism includes a protector feeding base and a protector feeding block, a protector feeding cylinder is fixed on the protector feeding base, the telescopic end of the protector feeding cylinder is connected to a protector feeding push block, the upper end of the protector feeding push block is connected to a protector feeding push rod, the protector feeding push rod extends into the protector feeding block to transport the protector, a protector feeding channel is provided in the protector feeding block, the protector feeding push rod and the protector feeding channel are in the same straight line, a protector feeding trough is provided on the surface of the protector feeding block, and the protector feeding trough is connected to the protector feeding channel.
5. The bottom plate spot welding device according to claim 1, characterized in that: The welding positioning platform includes a support, a lifting rail is fixed on the side of the support, a lifting slider slides on the lifting rail, a welding adjustment block is connected to the lifting slider, a welding platform is fixed on the welding adjustment block, a protector positioning groove is opened on the surface of the welding platform, a silver wire height positioning column is connected to the lower end of the protector positioning groove, the silver wire height positioning column is fixed in the welding platform by a fastener, a silver wire welding groove is opened in the silver wire height positioning column, and the height of the silver wire welding groove is lower than the height of the protector positioning groove.
6. The bottom plate spot welding device according to claim 1, characterized in that: The silver wire feeding mechanism includes a silver wire feeding base, a silver wire feeding cylinder is fixed on the silver wire feeding base, the upper end of the silver wire feeding cylinder is connected to a silver wire feeding support, the silver wire feeding support is connected to the telescopic end of the silver wire feeding cylinder, a silver wire feeding channel is opened in the silver wire feeding support, a cylinder mounting seat is also fixed on the silver wire feeding support, the cylinder mounting seat is located above the silver wire feeding channel, a silver wire feeding locking cylinder is connected to the cylinder mounting seat, the lower end of the silver wire feeding locking cylinder is connected to a silver wire feeding locking block, the lower end of the silver wire feeding locking block is connected to a silver wire feeding pressure block, the silver wire feeding pressure block moves downward to lock the silver wire between the silver wire feeding pressure block and the silver wire feeding support, so that the silver wire moves with the silver wire feeding cylinder.
7. The bottom plate spot welding device according to claim 6, characterized in that: A silver wire feeding guide block is arranged at the other end of the silver wire feeding channel, and the silver wire is inserted into the silver wire feeding guide block.
8. The bottom plate spot welding device according to claim 1, characterized in that: The welding gun mechanism includes a welding gun bracket, a welding gun slide rail is fixed on the welding gun bracket, a welding gun slider slides on the welding gun slide rail, a welding gun push block is fixed on the welding gun slider, a welding gun is fixed on the side of the welding gun slider, a welding gun is fixed on the upper end of the welding gun bracket, the welding gun cylinder is located above the welding gun slide rail, and the telescopic end of the welding gun cylinder is connected to the welding gun push block.