A capacitor stud welding device

Abstract

The present application provides a capacitor stud welding device, which belongs to the field of welding equipment technology and relates to capacitor production equipment technology. The device includes: the capacitor conveying part includes a mounting plate on which a lifting platform is provided, the lifting platform is provided with a conveying roller, the capacitor positioning part is arranged above the lifting platform at intervals, a telescopic rod, a rectangular plate is provided at the lower end of the telescopic rod, and positioning pieces are provided at both ends of the rectangular plate; the stud feeding part includes a lifting rod, a strip plate is provided at the lower end, a synchronous belt transmission assembly is provided at both ends of the strip plate, the lower end of the synchronous belt transmission assembly has the same concave plate, the concave plate array is provided with a clamping assembly, and the number of the clamping assemblies is an odd number, and the clamping assembly in the middle is fixedly connected to the round rod, and the middle of the top surface of each clamping assembly is connected to the same telescopic piece, which is used to synchronously and equidistantly adjust the spacing between two adjacent clamping assemblies. The scheme provided by the present application can automatically adjust the spacing between two adjacent studs to adapt to different types of capacitor stud welding.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, relates to capacitor production equipment technology, and in particular to a capacitor stud welding device. Background Art

[0002] The studs welded at the ends of capacitors are mainly used for electrical connections. During the stud welding and installation process, since the studs are located at the ends of the capacitors and the outside of the two sides of the battery cells inside the capacitors are not wrapped when welding the studs, the capacitors can only be placed horizontally and then the studs are installed and welded at the ends of the capacitors, which makes the installation and positioning of the studs inconvenient during the welding process. In order to reduce the installation error of studs on capacitors of the same type, special positioning tooling is often used. However, depending on the application requirements and the type of capacitor, the number of studs on the capacitors includes single studs, double studs, and multiple studs. Therefore, different tooling needs to be developed for different numbers of studs, which has low versatility and high cost. Summary of the invention

[0003] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a capacitor stud welding device, which can automatically adjust the distance between two adjacent studs to adapt to different types of capacitor stud welding.

[0004] In order to achieve the purpose of the present invention, the following scheme is proposed:

[0005] A capacitor stud welding device, comprising:

[0006] The capacitor conveying part includes a mounting plate, a rectangular groove is recessed along the width direction of the mounting plate, a conveying belt is respectively arranged on both sides of the rectangular groove, a lifting platform is vertically telescopically arranged in the rectangular groove, a conveying roller is arranged on the lifting platform, and the axis of the conveying roller is perpendicular to the length direction of the mounting plate;

[0007] The capacitor positioning part is arranged above the lifting platform at intervals, including a crossbeam, the length direction of the crossbeam is perpendicular to the length direction of the conveyor belt, a telescopic rod is vertically arranged on the bottom surface of the crossbeam, a rectangular plate is arranged at the lower end of the telescopic rod, and relatively movable positioning members are respectively arranged at both ends of the rectangular plate, and the positioning members include an end seat telescopically arranged along the width direction of the rectangular plate, a right-angle plate is arranged on the bottom surface of the end seat, and the right angles of each right-angle plate are all facing the rectangular plate, and a positioning wheel is rotatably arranged on the bottom surface of one end of each support arm of the right-angle plate, a first connecting column is vertically arranged on a support arm on the outer side of the right-angle plate, a second connecting column is arranged at the bottom of the end seat, and the second connecting column corresponds to a support arm on the inner side of the right-angle plate, and a tension spring is arranged between the first connecting column and the second connecting column;

[0008] The stud feeding part includes a lifting rod which is movably arranged along the length direction of the beam, a strip plate is provided at the lower end of the lifting rod, and the center of the top surface of the strip plate is fixedly connected to the lower end of the lifting rod, the length direction of the strip plate is perpendicular to the length direction of the beam, synchronous belt transmission components are respectively provided at both ends of the strip plate, and the lower end of the synchronous belt transmission component is provided with the same concave plate, and two round rods are arranged in parallel and at intervals at the recessed part of the concave plate, and clamping components are arranged in an array on the round rod, and the number of the clamping components is an odd number, and the middle clamping component is fixedly connected to the round rod, and the middle part of the top surface of each clamping component is connected to the same telescopic part for synchronously and equidistantly adjusting the distance between two adjacent clamping components.

[0009] Furthermore, a rotating plate is rotatably provided at the connection between the telescopic rod and the rectangular plate, and connecting plates are rotatably provided at both ends of the rotating plate. One end of the connecting plate is rotatably connected to the horizontal part of the U-shaped rod, and a two-way threaded sleeve is provided at the opening of the U-shaped rod. The two ends of the two-way threaded sleeve are respectively rotatably connected to the two ends of the vertical part of the U-shaped rod. A screw rod is vertically provided on one side of the end seat, and the screw rod is rotatably connected to one end of the two-way threaded sleeve.

[0010] Furthermore, guide rails are installed on both sides of the rectangular plate, and a sliding seat is provided at one end of the vertical part of the U-shaped rod. The bottom of the sliding seat is slidably connected to the guide rail, and the two ends of the bidirectional threaded sleeve are respectively passed through the sliding seat. A limit rod is provided parallel to one side of the screw rod, and one end of the limit rod is passed through the sliding seat.

[0011] Furthermore, a first cylinder is provided on the top surface of the rectangular plate, and an output end of the first cylinder is connected to the outer side of the center of the horizontal portion of one of the U-shaped rods.

[0012] Furthermore, the clamping assembly includes a bar slide, the side of the bar slide is penetrated by a connecting hole corresponding to the round rod, and the round rod is slidably connected to the corresponding connecting hole, one end of the bar slide is provided with an L-shaped mounting seat, the horizontal part of the mounting seat is provided with a pneumatic clamp, and one end of the pneumatic clamp extends out of one side of the concave plate.

[0013] Furthermore, the pneumatic clamp comprises a third cylinder installed on the transverse part of the mounting seat, the output end of the third cylinder is provided with a rectangular shaft, and one end of the rectangular shaft is pluggably connected to the clamp.

[0014] Furthermore, an arc-shaped clamp is symmetrically provided at one end of the clamping jaw, an inner wall of the arc-shaped clamp is provided with a stepped arc surface, and the surface of the stepped arc surface is covered with a rubber layer.

[0015] Furthermore, a support plate is provided at the other end of one of the strip-shaped slide seats, and one side of the support plate is connected to the output end of a second cylinder.

[0016] Furthermore, a connecting pin is provided at the top center of the strip slide, and the telescopic member includes a plurality of first connecting rods which are rotatably connected end to end in sequence and are in a continuously bent shape, and the middle portion of the first connecting rod is rotatably connected to the connecting pin.

[0017] Furthermore, the telescopic part also includes two second connecting rods, which are respectively arranged at the head and tail ends of a plurality of first connecting rods that are rotatably connected in sequence. The other end of the second connecting rod is rotatably connected to the connecting pins on the strip slides located at both ends, and the length of the first connecting rod is twice the length of the second connecting rod.

[0018] The beneficial effects of the present invention are:

[0019] The end seats at both ends are synchronously adjusted using a bidirectional threaded sleeve, and the four corners of the top surface of the capacitor are positioned using a positioning wheel to meet the needs of capacitors of different sizes. The clamping components are set to an odd number to meet the needs of the number of multiple types of studs, so that the entire device has high versatility and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0021] Figure 1 A schematic diagram of an application scenario of the present application is shown.

[0022] Figure 2 Shown is a schematic diagram of the overall structure of the present application.

[0023] Figure 3 This application shows Figure 2 A local enlarged schematic diagram of point A.

[0024] Figure 4 A schematic structural diagram of a capacitor positioning portion of the present application is shown.

[0025] Figure 5 A schematic diagram of the three-dimensional structure of the capacitor of the present application is shown when viewed from the bottom.

[0026] Figure 6 This application shows Figure 4 A partial enlarged schematic diagram of point B.

[0027] Figure 7 A schematic structural diagram of a U-shaped rod of the present application is shown.

[0028] Figure 8 A schematic diagram of the three-dimensional structure of the positioning member of the present application is shown.

[0029] Fig. 9 A schematic structural diagram of the capacitor delivery unit of the present application is shown.

[0030] Fig.10 A schematic structural diagram of the stud feeding part of the present application is shown.

[0031] Markings in the figure: capacitor conveying part-10, mounting plate-11, conveying belt-12, lifting platform-13, conveying roller-131, capacitor positioning part-20, crossbeam-21, telescopic rod-22, rectangular plate-23, guide rail-231, first cylinder-232, positioning member-24, end seat-241, right angle plate-242, positioning wheel-243, first connecting column-244, second connecting column-245, tension spring-246, screw-247, limit rod-248, rotating plate-25, connecting plate-251, U-shaped rod- 26, slide 261, bidirectional threaded sleeve 27, stud feeding part 30, lifting rod 31, strip plate 32, synchronous belt drive assembly 33, concave plate 34, round rod 35, clamping assembly 36, strip slide 361, mounting seat 362, third cylinder 363, rectangular shaft 364, clamping claw 365, arc clamp 366, stepped arc surface 367, connecting pin 368, telescopic part 37, first connecting rod 371, second connecting rod 372, support plate 38, second cylinder 39. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the implementation modes of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] like Figure 1-Figure 10 As shown, this embodiment provides a capacitor stud welding device, which is used for synchronously positioning multiple studs welded at one time at equal intervals during capacitor stud welding. The device includes a capacitor conveying part 10, a capacitor positioning part 20, a stud feeding part 30, etc.

[0034] Specifically, Figure 1-Figure 2 , Fig. 9 As shown, the capacitor conveying part 10 includes a mounting plate 11, a conveyor belt 12, and a lifting platform 13. The mounting plate 11 is in a long strip structure. A rectangular groove is recessed in the middle of the mounting plate 11, and the length direction of the rectangular groove is consistent with the width direction of the mounting plate 11, and the bottom of the rectangular groove does not need to pass through the mounting plate 11; a conveyor belt 12 is respectively arranged on both sides of the rectangular groove, and the conveying direction is consistent, and each conveyor belt 12 is laid along the length direction of the mounting plate 11; the lifting platform 13 includes a vertically arranged lifting cylinder, the lifting cylinder is installed on the bottom surface of the mounting plate 11, and the output end of the lifting cylinder passes through the mounting plate 11 and is telescopically arranged along the middle of the rectangular groove, and a mounting platform is arranged at the output end of the lifting cylinder, the outer circumferential size of the mounting platform matches the inner wall size of the rectangular groove, and a groove is arranged on the top of the mounting platform, and a conveying roller 131 is arranged in an array in the groove, and the axis of the conveying roller 131 is perpendicular to the length direction of the mounting plate 11.

[0035] like Figure 1-Figure 2, Figure 4-Figure 8 As shown, the capacitor positioning part 20 is arranged above the lifting platform 13 at intervals, and the capacitor positioning part 20 is used to position the capacitor to be welded with the stud, so as to accurately position the stud feeding part 30 when docking with the capacitor. The capacitor positioning part 20 includes a crossbeam 21, a telescopic rod 22, a rectangular plate 23, a positioning member 24, a rotating plate 25, a U-shaped rod 26, and a bidirectional threaded sleeve 27. The crossbeam 21 is arranged above the mounting plate 11 at intervals along the center line direction of the lifting platform 13, and the length direction of the crossbeam 21 is perpendicular to the length direction of the mounting plate 11. The telescopic rod 22 is arranged vertically, and the upper end of the telescopic rod 22 is connected to the bottom surface of the cross beam 21, wherein the telescopic rod 22 can be electrically or hydraulically driven; the rectangular plate 23 is arranged at the lower end of the telescopic rod 22, and the rectangular plate 23 is correspondingly arranged above the lifting platform 13, the length direction of the rectangular plate 23 is consistent with the length direction of the lifting platform 13, guide rails 231 are respectively installed on both sides of the top surface of the rectangular plate 23, and limit plates are respectively provided at both ends of the guide rails 231, and positioning members 24 are respectively arranged at both ends of the rectangular plate 23.

[0036] The rotating plate 25 is arranged parallel to and at intervals at the connection between the middle part of the rectangular plate 23 and the telescopic rod 22, and the length direction of the rotating plate 25 is consistent with the width direction of the rectangular plate 23. Connecting plates 251 are respectively provided at both ends of the rotating plate 25. The sum of the length of the rotating plate 25 and the length of the connecting plates 251 at both ends is greater than the length of the guide rail 231; the U-shaped rod 26 is respectively arranged at one end of the corresponding connecting rod 251, and the opening of the U-shaped rod 26 faces the end of the rectangular plate 23, and the middle position of the horizontal part of the U-shaped rod 26 is rotatably connected to the connecting plate 251. The two arms of the U-shaped rod 26 are respectively provided with sliding seats 261, the bottom of the sliding seat 261 is slidably matched with the guide rail 231, and a through hole is penetrated on the side of the sliding seat 261, and the two ends of the bidirectional threaded sleeve 27 are respectively rotatably connected with the through holes of the corresponding sliding seat 261. A first cylinder 232 is provided on the top surface of the rectangular plate 23, and the output end of the first cylinder 232 is connected to the outer side of the center of the horizontal portion of one of the U-shaped rods 26. When in use, the first cylinder 232 pushes the center of the horizontal portion of the corresponding U-shaped rod 26 to move along the length direction of the rectangular plate 23, thereby controlling the position of the positioning pieces 24 at both ends of the rectangular plate 23, thereby meeting the use of capacitors of different lengths.

[0037] The positioning member 24 includes an end seat 241, a right angle plate 242, a positioning wheel 243, a first connecting column 244, a second connecting column 245, a tension spring 246, a screw 247, and a limit rod 248. The end seat 241 is correspondingly arranged on the outer sides of the two ends of the rectangular plate 23. One end of the screw 247 is vertically connected to one side of the end seat 241, and the other end of the screw 247 is threadedly connected to the bidirectional threaded sleeve 27. When in use, the extension amount of the screws 247 at both ends can be synchronously adjusted by rotating the bidirectional threaded sleeve 27, so as to meet the needs of capacitors of different widths and increase the scope of application.

[0038] The limiting rod 248 is parallel and spaced above the screw rod 247, and one end of the limiting rod 248 is vertically connected to one side of the end seat 241, and the other end is passed through the sliding seat 261 to prevent the end seat 241 from rotating; a rotating pin is provided in the middle part of the end seat 241 for vertical rotation, and the right angle of the right angle plate 242 is fixedly connected to the lower end of the rotating pin, and the right angle of the right angle plate 242 faces the rectangular plate 23, and the positioning wheel 243 is rotatably arranged below the outer end of the support arm of the right angle plate 242, and the first connecting column 244 is arranged in the middle of the top surface of an arm of the right angle plate 242 corresponding to the width direction of the rectangular plate 23, and the second connecting column 245 is arranged on the bottom surface of the end seat 241 and corresponds to the other support arm of the right angle plate 242, and the tension spring 246 is arranged on the second connecting column 245, and the other end of the tension spring 246 is connected to the first connecting column 244.

[0039] When in use, when the capacitor is located in the middle of the top surface of the lifting platform 13, the first cylinder 232 pulls the U-shaped rod 26 to move toward the middle of the rectangular plate 23, so that the positioning wheel 243 at the lower end of one arm corresponding to the right-angle plate 242 and the width direction of the rectangular plate 23 contacts the end of the capacitor, so that the other positioning wheel 243 corresponding to the same right-angle plate 242 is pressed against the length direction of the capacitor, thereby completing the positioning of the capacitor.

[0040] Specifically, Figure 1-Figure 3 , Fig.10As shown, the stud feeding part 30 includes a lifting rod 31, a strip plate 32, a synchronous belt drive assembly 33, a concave plate 34, a round rod 35, a clamping assembly 36, a telescopic member 37, a support plate 38, and a second cylinder 39. The lifting rod 31 is arranged vertically, and the lifting rod 31 is movable along the length direction of the crossbeam 21, so that the middle of the threaded feeding part 30 corresponds to the middle of the capacitor positioning part 20. Similarly, the lifting rod 31 can be driven electrically or hydraulically. The strip plate 32 is arranged at the lower end of the lifting rod 31, and the length direction of the strip plate 32 is consistent with the length direction of the mounting plate 11. The synchronous belt drive assembly 33 is respectively arranged at both ends of the strip plate 32, and the concave plate 34 is arranged at the driven end of the synchronous belt drive assembly 33 and is spaced below the strip plate 32. The synchronous belt drive assembly 33 is used to drive the concave plate 34 to rotate downward 90° toward the side where the mounting plate 11 is located, or rotate upward to a state parallel to the mounting plate 11. The round rods 35 are arranged in the concave plate 34, and are arranged in parallel and at intervals along the length direction of the horizontal part of the concave plate 34. The two ends of the round rods 35 are respectively connected to the inner walls of the vertical parts of the two ends of the concave plate 34. The clamping components 36 are arranged in odd groups, and a clamping component 36 located in the middle is fixedly connected to the round rod 35 and corresponds to the bottom of the lifting rod 31. The remaining clamping components 36 are arranged at equal intervals on both sides of the fixed clamping component 36 and are slidably connected to the round rod 35. One end of each clamping component 36 extends out of the concave plate 34 toward the side of the mounting plate 11, which is used to clamp the stud. When clamping, the spacing between two adjacent clamping components 36 is consistent with the spacing when the stud is stored vertically.

[0041] The telescopic member 37 is used to connect with each clamping assembly 36, the support plate 38 is connected to one end of a clamping assembly 36 facing the vertical portion of the concave plate 34, the second cylinder 39 is arranged on the other side of the horizontal portion of the concave plate 34, and the output end of the second cylinder 39 is connected to the support plate 38, so that the support plate 38 is pushed by the second cylinder 39 so that the clamping assembly 36 corresponding to the support plate 38 slides on the round rod 35, so that the clamping assembly 36 drives the telescopic member 37 to extend and retract, thereby synchronously controlling the position of each clamping assembly 36 on the round rod 35 to meet the requirements of different installation spacings of the studs.

[0042] The clamping assembly 36 includes a strip slide 361, a mounting seat 362, and a pneumatic clamp. A group of connection holes are penetrated on the side of the strip slide 361, and the connection holes are slidably connected with the corresponding round rod 35. The mounting seat 362 is L-shaped, and the vertical part of the mounting seat 362 is connected to the end of the strip slide 361 away from the second cylinder 39. The pneumatic clamp includes a third cylinder 363 installed on the horizontal part of the mounting seat 362, the output end of the third cylinder 363 faces the outside of the concave plate 34, and the protruding end of the third cylinder 363 is provided with a rectangular shaft 364, and one end of the rectangular shaft 364 is pluggably connected with a clamp 365. When in use, the number of clamps 365 can be installed according to the number of studs installed. One end of the clamp 365 is symmetrically provided with an arc clamp 366, and the inner wall of the arc clamp 366 is provided with a stepped arc surface 367. The surface of the stepped arc surface 367 is covered with a rubber layer to prevent the thread on the stud from being damaged during clamping.

[0043] The telescopic member 37 includes a plurality of first connecting rods 371 that are sequentially connected in a wave-like manner and rotated in sequence, and two second connecting rods 372 that are respectively arranged at the head and tail ends of the plurality of sequentially connected first connecting rods 371. A connecting pin 368 is arranged in the middle of the top surface of the strip slide 361, and the middle of the first connecting rod 371 is rotatably connected to the corresponding connecting pin 368. One end of the second connecting rod 372 away from the first connecting rod 371 is rotatably connected to the corresponding connecting pin 368 on the strip slide 361 located at both ends of the round rod 35, and the length of the first connecting rod 371 is twice the length of the second connecting rod 372, so that the strip seats 361 at both ends can be synchronously adjusted in level under the action of the telescopic member 37.

[0044] Preferably, the extension of the second cylinder 39 is smaller than the length of the first connecting rod 371 to ensure that the angle between the length direction of the first connecting rod 371 and the length direction of the corresponding strip slide 361 is less than 90°, thereby avoiding the first connecting rod 371 and the second connecting rod 372 being colinear and causing jamming.

[0045] Specific usage process:

[0046] Keep each slide 261 at the end of the guide rail 231, start the conveyor belt 12, and make the conveyor belt 12 transport the capacitor to the conveying roller 131 on the top surface of the lifting platform 13, start the telescopic rod 22, and make the telescopic rod 22 move vertically downward so that the rectangular plate 23 is close to the top surface of the capacitor, start the first cylinder 232, and make the first cylinder 232 pull one of the U-shaped rods 26 to move toward the middle of the rectangular plate 23, so that the positioning wheels 243 located at both ends of the rectangular plate 23 move toward both ends of the capacitor, thereby pushing the two ends of the capacitor to be parallel to the width direction of the lifting platform 13, and making the short axis of the capacitor collinear with the short axis of the lifting platform 13, when the arm of the right-angle plate 242 corresponding to the positioning wheel 243 located at the end of the capacitor is parallel to the end of the capacitor, the positioning wheel 243 of the other arm acts on the side of the capacitor, so that the long axis of the capacitor is collinear with the long axis of the lifting platform 13, thereby completing the positioning of the capacitor.

[0047] The lifting rod 31 is started along the length direction of the cross beam 21 to move the lifting rod 31 away from the mounting plate 11, and the synchronous belt drive assembly 33 is started synchronously to rotate the concave plate 34 downward 90° toward one side of the mounting plate 11, so that the clamping jaws 365 are in a vertical state, and the positions of the adjacent two-strip slide seats 361 on the round rod 35 are adjusted under the action of the second cylinder 39 to make the distance between each clamping jaw 365 consistent with the spacing when the studs are placed vertically.

[0048] Start the third cylinder 363, so that the third cylinder 363 drives the clamping claw 365 and keeps the clamping claw 365 in an open state, and moves the lifting rod 31 vertically downward, so that the arc clamp 366 of the clamping claw 365 is located on both sides of the stud, and the stepped arc surface 367 corresponds to the stepped structure on the stud, so as to clamp the screws inserted in the temporary storage box at equal intervals vertically. After clamping, the lifting rod 31 moves vertically upward, and the synchronous belt transmission assembly 33 rotates in the opposite direction, so that the side where the clamping claw 365 on the concave plate 34 is located rotates upward by 90°, and the lifting rod 31 continues to move upward, so that the center of the welding end of the clamped stud corresponds to the center line of the height direction of the capacitor, and then the lifting rod 31 moves along the crossbeam 21 toward the direction of the capacitor until the welding end of the stud fits the welding point of the capacitor and stops, and finally the stud is welded to the capacitor using a welding gun.

[0049] The above description is only a preferred embodiment of the present invention, and is not intended to be the only one or to limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A capacitor stud welding device, characterized in that: include: The capacitor conveying part (10) comprises a mounting plate (11), a rectangular groove is recessed along the width direction of the mounting plate (11), conveyor belts (12) are respectively provided on both sides of the rectangular groove, a lifting platform (13) is vertically telescopically provided in the rectangular groove, a conveying roller (131) is provided on the lifting platform (13), and the axis of the conveying roller (131) is perpendicular to the length direction of the mounting plate (11); The capacitor positioning part (20) is arranged above the lifting platform (13) at intervals, and comprises a crossbeam (21). The length direction of the crossbeam (21) is perpendicular to the length direction of the conveyor belt (12). A telescopic rod (22) is vertically arranged on the bottom surface of the crossbeam (21). A rectangular plate (23) is arranged at the lower end of the telescopic rod (22). Positioning members (24) that can move relatively are respectively arranged at both ends of the rectangular plate (23). The positioning member (24) comprises an end seat (241) that is telescopically arranged along the width direction of the rectangular plate (23). The end seat (241) is provided with a plurality of end seats (242) that are arranged to move relative to each other. A right-angle plate (242) is provided on the bottom surface of the end seat (241), and the right angles of each right-angle plate (242) are all facing the rectangular plate (23), a positioning wheel (243) is rotatably provided on the bottom surface of one end of each support arm of the right-angle plate (242), a first connecting column (244) is vertically provided on a support arm on the outer side of the right-angle plate (242), a second connecting column (245) is provided on the bottom of the end seat (241), and the second connecting column (245) corresponds to a support arm on the inner side of the right-angle plate (242), and the first connecting column (244) and the second connecting column (244) are connected to each other. A tension spring (246) is provided between the columns (245), a rotating plate (25) is rotatably provided at the connection between the telescopic rod (22) and the rectangular plate (23), and connecting plates (251) are rotatably provided at both ends of the rotating plate (25), one end of the connecting plate (251) is rotatably connected to the horizontal portion of the U-shaped rod (26), a bidirectional threaded sleeve (27) is provided at the opening of the U-shaped rod (26), and the two ends of the bidirectional threaded sleeve (27) are rotatably connected to the two ends of the vertical portion of the U-shaped rod (26), and a screw rod (27) is vertically provided on one side of the end seat (241) 247), the screw rod (247) is rotatably connected to one end of the bidirectional threaded sleeve (27), guide rails (231) are installed on both sides of the rectangular plate (23), one end of the vertical portion of the U-shaped rod (26) is respectively provided with a slide seat (261), the bottom of the slide seat (261) is slidably connected to the guide rail (231), the two ends of the bidirectional threaded sleeve (27) are respectively penetrated through the slide seat (261), and a limit rod (248) is parallelly provided on one side of the screw rod (247), and one end of the limit rod (248) is penetrated through the slide seat (261); The stud loading part (30) comprises a lifting rod (31) movably arranged along the length direction of the cross beam (21), a strip plate (32) is provided at the lower end of the lifting rod (31), and the center of the top surface of the strip plate (32) is fixedly connected to the lower end of the lifting rod (31), the length direction of the strip plate (32) is perpendicular to the length direction of the cross beam (21), synchronous belt transmission components (33) are respectively provided at both ends of the strip plate (32), the lower end of the synchronous belt transmission component (33) is provided with a same concave plate (34), and two round rods (35) are arranged in parallel and at intervals in the concave part of the concave plate (34), and clamping components (36) are arranged in an array on the round rod (35), and the number of the clamping components (36) is an odd number, and the clamping component (36) in the middle is fixedly connected to the round rod (35), and the middle part of the top surface of each clamping component (36) is connected to the same telescopic member (37) for synchronously and equidistantly adjusting the distance between two adjacent clamping components (36).

2. The capacitor stud welding device according to claim 1, characterized in that: A first cylinder (232) is provided on the top surface of the rectangular plate (23), and an output end of the first cylinder (232) is connected to the outer side of the center of the transverse portion of one of the U-shaped rods (26).

3. The capacitor stud welding device according to claim 1, characterized in that: The clamping assembly (36) comprises a strip slide (361), a side surface of the strip slide (361) is penetrated by a connection hole corresponding to the round rod (35), and the round rod (35) is slidably connected to the corresponding connection hole, an L-shaped mounting seat (362) is provided at one end of the strip slide (361), and a pneumatic clamping jaw is provided at the transverse portion of the mounting seat (362), and one end of the pneumatic clamping jaw extends out of one side of the concave plate (34).

4. The capacitor stud welding device according to claim 3, characterized in that: The pneumatic clamp comprises a third cylinder (363) mounted on the transverse portion of the mounting seat (362); a rectangular shaft (364) is provided at the output end of the third cylinder (363); and a clamp (365) is pluggably connected to one end of the rectangular shaft (364).

5. The capacitor stud welding device according to claim 4, characterized in that: An arc-shaped clamp (366) is symmetrically provided at one end of the clamping jaw (365), an inner wall of the arc-shaped clamp (366) is provided with a stepped arc surface (367), and the surface of the stepped arc surface (367) is covered with a rubber layer.

6. The capacitor stud welding device according to claim 4, characterized in that: A support plate (38) is provided at the other end of one of the strip-shaped slide seats (361), and one side of the support plate (38) is connected to the output end of a second cylinder (39).

7. The capacitor stud welding device according to claim 4, characterized in that: A connecting pin (368) is provided at the top center of the strip-shaped sliding seat (361). The telescopic member (37) comprises a plurality of first connecting rods (371) which are rotatably connected end to end in sequence and are in a continuously bent shape. The middle portion of the first connecting rod (371) is rotatably connected to the connecting pin (368).

8. The capacitor stud welding device according to claim 7, characterized in that: The telescopic member (37) further comprises two second connecting rods (372), the second connecting rods (372) being respectively arranged at the head and tail ends of a plurality of first connecting rods (371) that are rotatably connected in sequence, the other ends of the second connecting rods (372) being rotatably connected to connecting pins (368) on the strip slide seats (361) located at both ends, and the length of the first connecting rod (371) is twice the length of the second connecting rod (372).

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