Capacitor laser welding clamp

Abstract

The invention relates to a capacitor laser welding clamp which comprises a base, a clamping table is rotationally arranged on the base, a plurality of clamping blocks are arranged on the clamping table in a sliding mode, the clamping blocks are clamped in the circumferential direction of a circuit board through sliding, and an abutting mechanism is installed on the clamping table. The abutting mechanism comprises a connecting rod, a transverse sliding rod, longitudinal sliding rods and an abutting block, the connecting rod is arranged on the clamping table, the transverse sliding rod is fixedly arranged on the connecting rod, the longitudinal sliding rods are arranged on the transverse sliding rod in a sliding mode, the longitudinal sliding rods slide in the length direction of the transverse sliding rod, the longitudinal sliding rods are detachably arranged on the transverse sliding rod, and the abutting block is arranged on the longitudinal sliding rods. The abutting blocks are arranged on the longitudinal sliding rod in a sliding mode in the length direction of the longitudinal sliding rod, the abutting blocks are detachably arranged, the number of the abutting blocks corresponds to the number of the capacitors on the circuit board in a one-to-one mode, and the abutting blocks abut against the ends, away from the circuit board, of the capacitors respectively. The capacitor welding fixture has the effect of facilitating welding and fixing of the capacitor.

Description

Technical Field

[0001] The present application relates to the field of capacitor welding equipment, and in particular to a capacitor laser welding fixture. Background Art

[0002] Capacitor laser welding is an advanced connection technology that uses a high-power laser beam to precisely weld capacitor electrodes (such as aluminum foil, copper foil, and nickel strip) to lead terminals (such as aluminum terminals, copper terminals, and nickel terminals). It plays an increasingly important role in modern capacitor manufacturing, especially for high-end, miniaturized, and highly reliable capacitors.

[0003] When laser welding existing capacitors, the capacitor electrodes must be inserted into the circuit board and then welded to the circuit board from the back. However, welding from the bottom of the circuit board makes it difficult to observe the welding condition, and flipping the circuit board for welding makes the capacitor easily fall under the action of gravity. Summary of the Invention

[0004] In order to facilitate the welding and fixing of capacitors, the present application provides a capacitor laser welding fixture.

[0005] The present application provides a capacitor laser welding fixture structure that adopts the following technical solutions: A capacitor laser welding fixture comprises a base, a clamping platform rotatably provided on the base, a plurality of clamping blocks slidingly provided on the clamping platform, and the plurality of clamping blocks are respectively clamped on the circumference of the circuit board by sliding, and an abutment mechanism is installed on the clamping platform, and the abutment mechanism comprises a connecting rod, a transverse slide bar, a longitudinal slide bar and an abutment block, the connecting rod is provided on the clamping platform, the transverse slide bar is fixed on the connecting rod, the longitudinal slide bar is slidably provided on the transverse slide bar, the longitudinal slide bar slides along the length direction of the transverse slide bar, and the longitudinal slide bar is detachably provided with a plurality of abutment blocks, the abutment blocks are slidably provided on the longitudinal slide bar along the length direction of the longitudinal slide bar, and the abutment blocks are detachably provided, and the number of abutment blocks corresponds to the capacitors on the circuit board and respectively abuts against the end of the capacitor facing away from the circuit board.

[0006] By adopting the above technical solution, the circuit board is clamped by the clamping block and the electrodes of the capacitor are inserted through the circuit board. Then, the capacitor is abutted by the abutment mechanism to fix the capacitor. By rotating the clamping table, the electrodes of the capacitor pass through one side of the circuit board and face upward, thereby facilitating welding and fixing of the capacitor. The setting of the abutment mechanism can reduce the probability of the capacitor falling off the circuit board under the action of gravity.

[0007] Optionally, the connecting rod includes a fixed rod fixed on the clamping platform and a sliding rod slidably arranged on the fixed rod, and the transverse sliding rod is fixed on the sliding rod.

[0008] By adopting the above technical solution, the sliding rod slides on the fixed rod to adjust the position of the abutment block, thereby adjusting the abutment block to a suitable position according to the length of the capacitor, thereby improving the applicability of the abutment mechanism.

[0009] Optionally, a rotating seat is provided on the base for lifting and lowering, and the clamping platform is rotatably provided on the rotating seat.

[0010] By adopting the above technical solution, the liftable rotating seat can be adjusted according to the adjustment of the abutting mechanism, thereby providing sufficient rotation space for the clamping platform to rotate on the base.

[0011] Optionally, a disassembly and assembly component is provided between the abutment block and the longitudinal slide rod, and the disassembly and assembly component includes a sliding screw and a fixing nut. The sliding screw is fixed on the abutment block, the sliding screw is slidingly provided on the longitudinal slide rod and passes through the longitudinal slide rod, and the fixing nut is threadedly connected to one end of the sliding screw passing through the longitudinal slide rod.

[0012] By adopting the above technical solution, the provision of the disassembly and assembly components can facilitate the disassembly and assembly of the abutment block on the one hand, and can be used to adjust the position of the abutment block on the other hand.

[0013] Optionally, the clamping platform includes a clamping frame and a receiving rod. The clamping frame is rotatably set on the base. Two receiving rods are provided. The two receiving rods are respectively arranged on both sides of the clamping frame in the length direction. The receiving rods abut the bottom of both ends of the circuit board in the length direction.

[0014] By adopting the above technical solution, the provision of the receiving rod can facilitate the temporary receiving and placement of the circuit board before the circuit board is clamped and fixed.

[0015] Optionally, the receiving rod is slidably arranged along the length direction of the clamping frame.

[0016] By adopting the above technical solution, the sliding setting of the receiving rod can be adjusted according to the size of the circuit board, thereby improving the applicability of the receiving rod.

[0017] Optionally, pressure detection units are evenly distributed on the side of the base facing the clamping platform, and when the side of the circuit board where the capacitor is arranged faces the base, the sliding screw abuts against the pressure detection unit.

[0018] By adopting the above technical solution, the detected pressure changes are transmitted to the processing unit for data analysis and processing, and then the driving unit drives the laser welding equipment to perform automatic welding at the corresponding points.

[0019] Optionally, a signal member is embedded on the side of the sliding screw facing away from the abutment block, and a signal receiver is provided on the side of the base facing the clamping platform.

[0020] By adopting the above technical solution, the installation position of the capacitor is fed back to the signal receiver through the signal member on the sliding screw, and the installation position of the capacitor is determined by the signal receiver, thereby controlling the welding equipment to perform automated welding at a fixed point.

[0021] Optionally, the signal component is a reflective block, and the signal receiver is a laser scanner.

[0022] By adopting the above technical solution, scanning is performed using a laser scanner. When the reflective block is scanned, the reflective block reflects the laser to determine the installation position of the capacitor, so that positioning welding can be performed through the installation position of the capacitor.

[0023] Optionally, the signal element is an infrared transmitter, and the signal receiver is an infrared sensor board.

[0024] By adopting the above technical solution, infrared rays are emitted to the infrared sensing board through the infrared transmitter, and the capacitor is positioned according to the position of the infrared rays received on the infrared sensing board, thereby determining the installation position of the capacitor so that positioning welding can be performed according to the installation position of the capacitor.

[0025] In summary, this application includes at least one of the following beneficial technical effects: After the circuit board is clamped by the clamping block, the capacitor electrode is inserted through the circuit board, and then the capacitor is abutted by the abutting mechanism to fix the capacitor. By rotating the clamping table, the side of the capacitor electrode that passes through the circuit board is turned upward, which facilitates the welding and fixing of the capacitor. The setting of the abutting mechanism can reduce the probability of the capacitor falling off the circuit board under the action of gravity. The sliding rod slides on the fixed rod to adjust the position of the abutment block, thereby adjusting the abutment block to a suitable position according to the length of the capacitor, thereby improving the applicability of the abutment mechanism; The provision of the disassembly and assembly components can facilitate the disassembly and assembly of the abutment block on the one hand, and can be used to adjust the position of the abutment block on the other hand; The detected pressure changes are transmitted to the processing unit for data analysis and processing, and then the driving unit drives the laser welding equipment to perform automatic welding at the corresponding point; The laser scanner can locate the installation coordinates of the capacitor by scanning, and then feed the coordinates back to the processing unit. After the processing unit receives and analyzes it, the driving unit drives the laser welding equipment to perform automatic welding at the corresponding point. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the capacitor when installed in Example 1 of the present application.

[0027] Figure 2 yes Figure 1 Magnified view of part A in the middle.

[0028] Figure 3 This is a schematic diagram of the overall structure of the capacitor during welding in Example 1 of the present application.

[0029] Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0030] Figure 5 This is a structural cross-sectional view of the abutment block and the sliding screw in Example 2 of the present application.

[0031] Figure 6 It is a schematic diagram of the overall structure of Example 3 of the present application.

[0032] Explanation of the accompanying drawings: 1. Base; 2. Clamping table; 21. Clamping frame; 22. Supporting rod; 3. Clamping block; 4. Rubber pad; 5. Abutment mechanism; 51. Connecting rod; 511. Fixed rod; 512. Sliding rod; 52. Horizontal sliding rod; 53. Longitudinal sliding rod; 54. Abutment block; 6. Sliding groove; 7. Adjusting groove; 8. Rotating seat; 9. Disassembly and assembly component; 91. Sliding screw; 92. Fixing nut; 10. Pressure detection unit; 11. Signal component; 12. Signal receiver; 13. Circuit board; 14. Capacitor; 15. Calibration mechanism; 151. Calibration block; 152. Calibration sliding rod; 153. Calibration drive block; 16. Blocking spring; 17. Reset spring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] First of all, it should be noted that in the description of this application, if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and other directional words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application; in addition, if the terms "first", "second", "third" and other numerical quantifiers appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", and "connected" appear, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an interference fit, a transition fit and other limited connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Example

[0035] The embodiment of the present application discloses a laser welding fixture for capacitor 14, referring to Figure 1 、 Figure 2 and Figure 3 , including a rectangular base 1, a rectangular clamping platform 2 is rotatably provided on the base 1, a plurality of clamping blocks 3 are slidably provided on the clamping platform 2, and the plurality of clamping blocks 3 are clamped on the circumference of the circuit board 13 by sliding. In this embodiment, four clamping blocks 3 are provided to clamp the four sides of the circuit board 13 respectively. The clamping blocks 3 are driven to slide by an electric cylinder. A rubber pad 4 is fixed on one side of the clamping block 3 against the circuit board 13, thereby reducing the probability of damage to the circuit board 13 caused by the clamping force of the clamping block 3. An abutment mechanism 5 is installed on the clamping platform 2, and the abutment mechanism 5 includes a connecting rod 51, a lateral sliding rod 52, and a connecting rod 53. Rod 52, longitudinal slide bar 53 and abutment block 54, connecting rod 51 is arranged on the clamping platform 2, in this embodiment, four connecting rods 51 are arranged, and the four connecting rods 51 are respectively arranged on the four corners of the clamping platform 2, and the transverse slide bar 52 is fixed on the connecting rod 51. In this embodiment, there are two transverse slide bars 52, and the two transverse slide bars 52 are respectively arranged on both sides of the width direction of the clamping platform 2. The two ends of the transverse slide bar 52 are respectively fixed on the two connecting rods 51, and a sliding groove 6 is opened on the transverse slide bar 52 along the length direction of the transverse slide bar 52. The longitudinal slide bar 53 passes through the sliding groove 6 is slidingly arranged on the transverse slide bar 52, and the longitudinal slide bar 53 slides along the length direction of the transverse slide bar 52. The longitudinal slide bar 53 is detachably provided with a plurality of them on the transverse slide bar 52. Both ends of the length direction of each longitudinal slide bar 53 are respectively slidably provided in the sliding groove 6 of the two transverse slide bars 52. The longitudinal slide bar 53 is provided with an adjustment groove 7 along the length direction of the longitudinal slide bar 53. The abutment block 54 is slidably provided in the adjustment groove 7 of the longitudinal slide bar 53 along the length direction of the longitudinal slide bar 53. The abutment block 54 is detachably provided with a plurality of them. The number of the abutment blocks 54 is the same as that of the circuit board 13. The capacitors 14 on the board correspond to each other one by one and respectively abut against the end of the capacitor 14 facing away from the circuit board 13. After the circuit board 13 is clamped by the clamping block 3, the electrodes of the capacitor 14 are inserted through the circuit board 13. Then, the capacitor 14 is abutted by the abutting mechanism 5 to fix the capacitor 14. By rotating the clamping table 2, the electrode of the capacitor 14 is passed through one side of the circuit board 13 and faces upward, so as to facilitate welding and fixing of the capacitor 14. The setting of the abutting mechanism 5 can reduce the probability of the capacitor 14 falling off the circuit board 13 under the action of gravity.

[0036] Reference Figure 1 、 Figure 2 and Figure 3The connecting rod 51 includes a fixed rod 511 fixed on the clamping platform 2 and a sliding rod 512 slidingly arranged on the fixed rod 511. An electric push cylinder is embedded in the fixed rod 511. The piston rod of the electric push rod is fixedly connected to the sliding rod 512 and drives the sliding rod 512 to slide. The transverse sliding rod 52 is fixed on the sliding rod 512. The sliding rod 512 slides on the fixed rod 511 to adjust the position of the abutment block 54, thereby adjusting the abutment block 54 to a suitable position according to the length of the capacitor 14, thereby improving the applicable range of the abutment mechanism 5; a rotating seat 8 is provided on the base 1 for lifting and lowering, and an electric cylinder is installed on the base 1. The electric cylinder drives the rotating seat 8 to slide toward or away from the base 1, and the clamping platform 2 is rotatably arranged on the rotating seat 8. The liftable rotating seat 8 can be adjusted according to the adjustment of the abutment mechanism 5, thereby providing sufficient rotation space for the rotation of the clamping platform 2 on the base 1.

[0037] Reference Figure 1 、 Figure 2 and Figure 3 A disassembly assembly 9 is provided between the abutment block 54 and the longitudinal slide bar 53. The disassembly assembly 9 includes a sliding screw 91 and a fixing nut 92. The sliding screw 91 is fixed to the side of the abutment block 54 away from the capacitor 14. The sliding screw 91 is slidingly provided in the adjustment slot 7 of the longitudinal slide bar 53 and passes through the longitudinal slide bar 53. The fixing nut 92 is threadedly connected to one end of the sliding screw 91 passing through the longitudinal slide bar 53. The abutment block 54 can be disassembled by unscrewing the fixing nut 92. The sliding screw 91 can be driven by loosening the fixing nut 92 to adjust the position of the abutment block 54. By tightening the fixing nut 92 can fix the position of the abutment block 54. The setting of the disassembly and assembly component 9 can facilitate the disassembly and assembly of the abutment block 54 on the one hand, and can be used to adjust the position of the abutment block 54 on the other hand; a disassembly and assembly component 9 is also provided between the longitudinal slide bar 53 and the transverse slide bar 52, and the sliding screw 91 of the disassembly and assembly component 9 between the longitudinal slide bar 53 and the transverse slide bar 52 is fixed on the longitudinal slide bar 53, and the sliding screw 91 passes through the sliding groove 6 and is threadedly connected with the fixing nut 92. In this embodiment, the sliding screw 91 of the disassembly and assembly component 9 between the longitudinal slide bar 53 and the transverse slide bar 52 passes through the sliding groove 6 in the direction away from the base 1.

[0038] Reference Figure 1 、 Figure 2 and Figure 3The clamping platform 2 includes a clamping frame 21 and a receiving rod 22. The clamping frame 21 is rotatably set on the base 1 through the rotating seat 8. Two receiving rods 22 are provided. The two receiving rods 22 are respectively arranged on both sides of the length direction of the clamping frame 21. The receiving rods 22 are against the bottom of the two ends of the length direction of the circuit board 13. The setting of the receiving rods 22 can facilitate the temporary placement of the circuit board 13 before clamping and fixing the circuit board 13; the receiving rods 22 are slidably set along the length direction of the clamping frame 21, and the receiving rods 22 are fixed on the clamping frame 21 by screws and nuts. The sliding setting of the receiving rods 22 can be adjusted according to the size of the circuit board 13, thereby improving the applicability of the receiving rods 22.

[0039] Reference Figure 1 、 Figure 2 and Figure 3 The pressure detection units 10 are evenly distributed on the side of the base 1 facing the clamping table 2. When the side of the circuit board 13 with the capacitor 14 is arranged toward the base 1, the sliding screw 91 abuts against the pressure detection unit 10. The pressure detection unit 10 can use a piezoresistive sensor array, a capacitive sensor array, a piezoelectric sensor, or other electronic components that can provide feedback when pressure changes are detected. After the detected pressure changes are transmitted to the processing unit for data analysis and processing, the driving unit drives the laser welding equipment to perform automatic welding at the corresponding point.

[0040] The implementation principle of the embodiment of the present application is: adjust the receiving rod 22 according to the size of the circuit board 13, place the circuit board 13 on the receiving rod 22, then drive the clamping block 3 to clamp and fix the circuit board 13, and install the capacitor 14 at an appropriate position on the circuit board 13. After the capacitor 14 is installed, adjust the number of abutment blocks 54 according to the number of capacitors 14, and make the abutment blocks 54 correspond one by one to the capacitors 14 and abut on the capacitors 14. The abutment of the abutment blocks 54 can be achieved by first adjusting the sliding rod 512 and then sliding the abutment blocks 54 to abut, or by driving the abutment blocks 54 to abut by first adjusting the sliding rod 512 and then sliding the abutment; then drive the clamping table 2 to rotate 180° to make the circuit board 13 flat, and then detect the position of the capacitor 14 through the pressure detection unit 10 and weld the capacitor 14 electrodes at the corresponding position through laser welding equipment to complete the welding and fixation of the capacitor 14. Example

[0041] The difference between this embodiment and the first embodiment is that the method and structure for detecting the position of the capacitor 14 in this embodiment are different from those in the first embodiment.

[0042] Reference Figure 4 and Figure 5A signal member 11 is embedded on the side of the sliding screw 91 away from the abutment block 54, a signal receiver 12 is provided on the side of the base 1 facing the clamping table 2, a calibration mechanism 15 is provided between the abutment block 54 and the sliding screw 91, the calibration mechanism 15 includes a calibration stopper 151, a calibration slide 152 and a calibration drive block 153, the calibration stopper 151 is slidingly provided on the side of the sliding screw 91 away from the abutment block 54, the calibration stopper 151 blocks or moves away from the signal member 11 by sliding, and the calibration slide 152 is slidingly provided on the abutment block 54 away from the sliding screw 91, one end of the calibration slide 152 extends out of the abutment block 54 and the other end slides into the sliding screw 91, the calibration drive block 153 is fixed on the calibration stopper 151, the calibration stopper 151 is a wedge-shaped block, and the calibration slide 152 is inserted into the sliding screw 91 and abuts on the wedge surface. When the abutment block 54 abuts against the capacitor 14, the capacitor 14 drives the calibration slide 152 to slide, and the calibration screw drives the calibration stopper 151 to slide away from the signal member 11 through the calibration drive block 153, so that the signal member 11 can normally mate with the signal receiver 12. The setting of the calibration component can reduce the influence of the multiple-installed abutment mechanism 5 on the position detection and positioning of the capacitor 14 when the abutment mechanism 5 is multiple-installed; a blocking spring 16 is provided between the calibration drive block 153 and the sliding screw 91, and the blocking spring 16 elastic force drives the calibration block 151 to slide and block the signal member 11, and a reset spring 17 is provided between the calibration slide 152 and the sliding screw 91, and the reset spring 17 drives the calibration slide 152 to slide out of the abutment block 54 when the capacitor 14 is separated from the abutment block 54; the signal member 11 is a reflection block, and the reflection block is a plane mirror, and the signal receiver 12 is a laser scanner. When the capacitor 14 is installed on the circuit board 13 and the clamping table 2 is flipped, the laser scanner starts to perform a laser scan on the bottom of the clamping table 2. When the laser scanner scans the reflection block, the reflection block will reflect the laser. The laser scanner locates the installation coordinates of the capacitor 14 according to the position of the reflected laser, and feeds back the coordinates to the processing unit. After the processing unit receives and analyzes it, the driving unit drives the laser welding equipment to perform automatic welding at the corresponding point.

[0043] The implementation principle of the embodiment of the present application is as follows: the receiving rod 22 is adjusted according to the size of the circuit board 13, the circuit board 13 is placed on the receiving rod 22, and then the clamping block 3 is driven to clamp and fix the circuit board 13, and the capacitor 14 is installed at an appropriate position on the circuit board 13. After the capacitor 14 is installed, the number of abutment blocks 54 is adjusted according to the number of capacitors 14, and the abutment blocks 54 are made to abut against the capacitors 14 one by one. The abutment of the abutment blocks 54 can be achieved by first adjusting the sliding rod 512 and then sliding the abutment blocks 54 to abut, or by driving the abutment blocks 54 to abut first and then sliding the abutment through the sliding rod 512; then the clamping table 2 is driven to rotate 180° to make the circuit board 13 flat, and then the position coordinates of the capacitor 14 are scanned by a laser scanner, and the electrodes of the capacitor 14 at the corresponding positions are welded by laser welding equipment to complete the welding and fixation of the capacitor 14. Example

[0044] The difference between this embodiment and embodiment 2 is that the signal element and the signal receiver in this embodiment are different from those in embodiment 2.

[0045] Reference Figure 6 The signal element 11 is an infrared transmitter, and the signal receiver 12 is an infrared sensor board. When the capacitor 14 is installed on the circuit board 13 and the clamping table 2 is flipped, the infrared transmitter will emit infrared rays, which will irradiate the infrared sensor board. The infrared sensor board will locate the point coordinates of the received infrared signal to determine the installation coordinates of the capacitor 14. The coordinates will be fed back to the processing unit. After the processing unit receives and analyzes them, the driving unit will drive the laser welding equipment to perform automatic welding at the corresponding point. The implementation principle of the embodiment of the present application is as follows: the receiving rod 22 is adjusted according to the size of the circuit board 13, the circuit board 13 is placed on the receiving rod 22, and then the clamping block 3 is driven to clamp and fix the circuit board 13, and the capacitor 14 is installed at an appropriate position on the circuit board 13. After the capacitor 14 is installed, the number of the abutting blocks 54 is adjusted according to the number of capacitors 14, and the abutting blocks 54 are made to abut against the capacitors 14 one by one. The abutment of the abutting blocks 54 can be achieved by first adjusting the sliding rod 512 and then sliding the abutting blocks 54, or by first adjusting the abutting blocks 54 and then sliding the abutting blocks 54 through the sliding rod 512; then the clamping table 2 is driven to rotate 180° to make the circuit board 13 flat, and then irradiate it on the infrared sensor board through infrared rays. The infrared sensor board will locate the coordinates of the point where the infrared signal is received to determine the installation coordinates of the capacitor 14, and then the electrodes of the capacitor 14 are welded according to the coordinates to complete the welding and fixation of the capacitor 14. It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although this specification has described the present application in detail with reference to the above embodiments, ordinary technicians in this field should understand that technicians in the relevant technical field can still modify or make equivalent substitutions to the present application, and all technical solutions and improvements thereto that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. A capacitor laser welding fixture, characterized by: The invention comprises a base (1), a clamping platform (2) is rotatably provided on the base (1), a plurality of clamping blocks (3) are slidably provided on the clamping platform (2), and the plurality of clamping blocks (3) are respectively clamped on the circumference of the circuit board (13) by sliding. An abutment mechanism (5) is installed on the clamping platform (2), and the abutment mechanism (5) comprises a connecting rod (51), a transverse sliding rod (52), a longitudinal sliding rod (53) and an abutment block (54). The connecting rod (51) is provided on the clamping platform (2), and the transverse sliding rod (52) is fixed on the connecting rod (51). The longitudinal slide bar (53) is slidingly arranged on the transverse slide bar (52), and the longitudinal slide bar (53) slides along the length direction of the transverse slide bar (52). The longitudinal slide bar (53) is detachably arranged on the transverse slide bar (52). The abutment blocks (54) are slidingly arranged on the longitudinal slide bar (53) along the length direction of the longitudinal slide bar (53), and the abutment blocks (54) are detachably arranged. The number of the abutment blocks (54) corresponds to the capacitors (14) on the circuit board (13) and respectively abuts against the end of the capacitor (14) away from the circuit board (13).

2. The capacitor laser welding fixture according to claim 1, characterized in that: The connecting rod (51) comprises a fixed rod (511) fixed on the clamping platform (2) and a sliding rod (512) slidably arranged on the fixed rod (511), and the transverse sliding rod (52) is fixed on the sliding rod (512).

3. The capacitor laser welding fixture according to claim 2, characterized in that: A rotating seat (8) is provided on the base (1) for lifting, and the clamping platform (2) is rotatably provided on the rotating seat (8).

4. The capacitor laser welding fixture according to claim 3, characterized in that: A disassembly assembly (9) is provided between the abutment block (54) and the longitudinal slide bar (53), and the disassembly assembly (9) includes a sliding screw (91) and a fixing nut (92). The sliding screw (91) is fixed on the abutment block (54), the sliding screw (91) is slidingly provided on the longitudinal slide bar (53) and passes through the longitudinal slide bar (53), and the fixing nut (92) is threadedly connected to one end of the sliding screw (91) passing through the longitudinal slide bar (53).

5. The capacitor laser welding fixture according to claim 4, characterized in that: The clamping platform (2) comprises a clamping frame (21) and a receiving rod (22). The clamping frame (21) is rotatably arranged on the base (1). Two receiving rods (22) are provided. The two receiving rods (22) are respectively arranged on both sides of the clamping frame (21) in the longitudinal direction. The receiving rods (22) abut against the bottom of both ends of the circuit board (13) in the longitudinal direction.

6. The capacitor laser welding fixture according to claim 5, characterized in that: The receiving rod (22) is slidably arranged along the length direction of the clamping frame (21).

7. The capacitor laser welding fixture according to claim 6, characterized in that: The base (1) is evenly provided with pressure detection units (10) on one side facing the clamping platform (2); when the side of the circuit board (13) on which the capacitor (14) is provided is arranged toward the base (1), the sliding screw (91) abuts against the pressure detection unit (10).

8. A capacitor (14) laser welding fixture according to claim 6, characterized in that: A signal member (11) is embedded in the side of the sliding screw (91) facing away from the abutment block (54), and a signal receiver (12) is provided on the side of the base (1) facing the clamping platform (2).

9. A capacitor (14) laser welding fixture according to claim 8, characterized in that: The signal element (11) is a reflective block, and the signal receiver (12) is a laser scanner.

10. A capacitor (14) laser welding fixture according to claim 8, characterized in that: The signal element (11) is an infrared transmitter, and the signal receiver (12) is an infrared sensor board.

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