A capacitor laser welding fixture

Abstract

This application relates to a capacitor laser welding fixture, including a base, a clamping platform rotatably mounted on the base, and a plurality of clamping blocks slidably mounted on the clamping platform. These clamping blocks clamp a circuit board circumferentially via sliding. An abutment mechanism is mounted on the clamping platform, comprising a connecting rod, a transverse slide rod, a longitudinal slide rod, and abutment blocks. The connecting rod is mounted on the clamping platform, the transverse slide rod is fixed to the connecting rod, and the longitudinal slide rod is slidably mounted on the transverse slide rod along its length. A plurality of longitudinal slide rods are detachably mounted on the transverse slide rod, and abutment blocks are detachably mounted on the longitudinal slide rod along its length. The number of abutment blocks corresponds one-to-one with the capacitors on the circuit board, and each abuts against the end of the capacitor facing away from the circuit board. This application facilitates capacitor welding and fixing.

Description

Technical Field

[0001] This application relates to the field of capacitor welding equipment, and more particularly to a capacitor laser welding fixture. Background Technology

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

[0003] Existing capacitors require the capacitor electrodes to be inserted into a circuit board during laser welding, and then the capacitor electrodes are welded and fixed to the circuit board from the back. However, welding from below the circuit board makes it difficult to observe the welding process, and flipping the circuit board for welding makes the capacitor prone to falling off under gravity. Summary of the Invention

[0004] To facilitate the welding and fixing of capacitors, this application provides a capacitor laser welding fixture.

[0005] The capacitor laser welding fixture structure provided in this application adopts the following technical solution:

[0006] A capacitor laser welding fixture includes a base, on which a clamping platform is rotatably mounted. A plurality of clamping blocks are slidably mounted on the clamping platform, clamping a circuit board circumferentially. An abutment mechanism is mounted on the clamping platform, comprising a connecting rod, a transverse slide rod, a longitudinal slide rod, and abutment blocks. The connecting rod is mounted on the clamping platform, the transverse slide rod is fixed to the connecting rod, and the longitudinal slide rod is slidably mounted on the transverse slide rod along its length. A plurality of longitudinal slide rods are detachably mounted on the transverse slide rod. A plurality of abutment blocks are detachably mounted on the longitudinal slide rod along its length. The number of abutment blocks corresponds one-to-one with the capacitors on the circuit board, and each abuts against the end of the capacitor facing away from the circuit board.

[0007] By adopting the above technical solution, the circuit board is clamped by the clamping block and the capacitor electrodes are inserted through the circuit board. Then, the capacitor is fixed by the abutting mechanism. By rotating the clamping table, the side of the capacitor electrodes that penetrate the circuit board faces upward, which facilitates the welding and fixing of the capacitor. The abutting mechanism can reduce the probability of the capacitor falling off the circuit board under the action of gravity.

[0008] Optionally, the connecting rod includes a fixed rod fixed on the clamping platform and a sliding rod slidably disposed on the fixed rod, wherein the transverse sliding rod is fixed on the sliding rod.

[0009] By adopting the above technical solution, the sliding rod can slide 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 and improving the applicability of the abutment mechanism.

[0010] Optionally, a rotating seat is provided on the base, and the clamping platform is rotatably mounted on the rotating seat.

[0011] By adopting the above technical solution, the height-adjustable rotating seat can be adjusted according to the adjustment of the abutment mechanism, thereby providing sufficient rotation space for the clamping platform to rotate on the base.

[0012] Optionally, a disassembly assembly is provided between the abutment block and the longitudinal slide bar. The disassembly assembly includes a sliding screw and a fixing nut. The sliding screw is fixed on the abutment block and slides on the longitudinal slide bar and passes through the longitudinal slide bar. The fixing nut is threadedly connected to one end of the sliding screw that passes through the longitudinal slide bar.

[0013] By adopting the above technical solution, the design of the disassembly and assembly components can facilitate the disassembly and assembly of the abutment block, and can also be used to adjust the position of the abutment block.

[0014] Optionally, the clamping platform includes a clamping frame and receiving rods. The clamping frame is rotatably mounted on the base. Two receiving rods are provided, which are respectively located on both sides of the clamping frame along its length. The receiving rods abut against the bottom of both ends of the circuit board along its length.

[0015] By adopting the above technical solution, the support rod can be set up to facilitate the temporary placement of the circuit board before clamping and fixing.

[0016] Optionally, the receiving rod is slidably disposed along the length direction of the clamping frame.

[0017] 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 expanding the applicability of the receiving rod.

[0018] Optionally, pressure detection units are evenly distributed on the side of the base facing the clamping table, and when the side of the circuit board with the capacitor faces the base, the sliding screw abuts against the pressure detection unit.

[0019] By adopting the above technical solution, the detected pressure changes are transmitted to the processing unit for data analysis and processing, and then the drive unit drives the laser welding equipment to perform automated welding at the corresponding points.

[0020] Optionally, a signal element is embedded on the side of the sliding screw away from the abutment block, and a signal receiver is provided on the side of the base facing the clamping table.

[0021] By adopting the above technical solution, the capacitor installation position is fed back to the signal receiver through the signal element on the sliding screw. The signal receiver determines the capacitor installation position, thereby controlling the welding equipment to perform automated welding at a fixed point.

[0022] Optionally, the signal element is a reflector block, and the signal receiver is a laser scanner.

[0023] By adopting the above technical solution, a laser scanner is used for scanning. When a reflective block is scanned, the reflective block reflects the laser to determine the installation position of the capacitor, so that the capacitor can be positioned and welded according to the installation position.

[0024] Optionally, the signal element is an infrared transmitter, and the signal receiver is an infrared sensor.

[0025] By adopting the above technical solution, infrared rays are emitted from an infrared transmitter onto an infrared sensing plate. The position of the capacitor is determined by the position of the infrared rays received on the infrared sensing plate, thereby determining the installation position of the capacitor so that it can be positioned and welded.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] After the circuit board is clamped by the clamping block, the capacitor electrode is inserted through the circuit board. Then, the capacitor is fixed by the abutting mechanism. By rotating the clamping table, the side of the capacitor electrode that passes through the circuit board faces upward, which facilitates the soldering and fixing of the capacitor. The abutting mechanism can reduce the probability of the capacitor falling off the circuit board under the action of gravity.

[0028] The sliding rod can adjust the position of the abutment block by sliding on the fixed rod, thereby adjusting the abutment block to a suitable position according to the length of the capacitor and improving the applicability of the abutment mechanism;

[0029] The design of the disassembly and assembly components facilitates the disassembly and assembly of the abutment block, and also allows for the adjustment of the position of the abutment block.

[0030] The detected pressure changes are transmitted to the processing unit for data analysis and processing, and then the drive unit drives the laser welding equipment to perform automated welding at the corresponding points.

[0031] The laser scanner can scan the installation coordinates of the positioning capacitor, feed the coordinates back to the processing unit, and after receiving and analyzing the data, the driving unit drives the laser welding equipment to perform automated welding at the corresponding points. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the capacitor during installation in Embodiment 1 of this application.

[0033] Figure 2 yes Figure 1 A magnified view of section A in the middle.

[0034] Figure 3 This is a schematic diagram of the overall structure of the capacitor during welding in Embodiment 1 of this application.

[0035] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0036] Figure 5 This is a cross-sectional view of the structure at the abutment block and sliding screw in Embodiment 2 of this application.

[0037] Figure 6 This is a schematic diagram of the overall structure of Embodiment 3 of this application.

[0038] Explanation of reference numerals in the attached drawings: 1. Base; 2. Clamping platform; 21. Clamping frame; 22. Supporting rod; 3. Clamping block; 4. Rubber pad; 5. Abutting mechanism; 51. Connecting rod; 511. Fixing rod; 512. Sliding rod; 52. Transverse sliding rod; 53. Longitudinal sliding rod; 54. Abutting block; 6. Sliding groove; 7. Adjusting groove; 8. Rotating seat; 9. Disassembly and assembly assembly; 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 stop; 152. Calibration sliding rod; 153. Calibration drive block; 16. Blocking spring; 17. Return spring. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0040] First, it should be noted that in the description of this application, the use of directional terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for descriptive purposes and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of numerical quantifiers such as "first," "second," and "third" is for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, interference fits, transition fits, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example

[0041] This application discloses a laser welding fixture for a capacitor 14, as shown in the embodiments below. Figure 1 , Figure 2 and Figure 3The circuit includes a rectangular base 1, on which a rectangular clamping platform 2 is rotatably mounted. Several clamping blocks 3 are slidably mounted on the clamping platform 2, clamping the circuit board 13 circumferentially. In this embodiment, four clamping blocks 3 are used to clamp the circuit board 13 around its perimeter. The clamping blocks 3 are driven to slide by an electric cylinder. A rubber pad 4 is fixed to one side of each clamping block that abuts against the circuit board 13, thereby reducing the probability of damage to the circuit board 13 due to the clamping force of the clamping blocks 3. A contact mechanism 5 is installed on the clamping platform 2, including a connecting rod 51 and a transverse sliding mechanism. Rod 52, longitudinal slide rod 53, and abutment block 54 are provided. Connecting rod 51 is set on clamping platform 2. In this embodiment, four connecting rods 51 are provided, and the four connecting rods 51 are respectively set at the four corners of clamping platform 2. Transverse slide rod 52 is fixed on the connecting rod 51. In this embodiment, there are two transverse slide rods 52, and the two transverse slide rods 52 are respectively set on both sides of the width direction of clamping platform 2. The two ends of the transverse slide rod 52 are respectively fixed on the two connecting rods 51. A sliding groove 6 is opened on the transverse slide rod 52 along the length direction of the transverse slide rod 52. The longitudinal slide rod 53 passes through the sliding groove. 6. A sliding mechanism is installed on the transverse slide bar 52. A longitudinal slide bar 53 slides along the length of the transverse slide bar 52. Several longitudinal slide bars 53 are detachably installed on the transverse slide bar 52. Each longitudinal slide bar 53 has two ends slidably installed in the sliding grooves 6 of two transverse slide bars 52. An adjustment groove 7 is provided on the longitudinal slide bar 53 along its length. An abutment block 54 is slidably installed in the adjustment groove 7 of the longitudinal slide bar 53 along its length. Several abutment blocks 54 are detachably installed. The number of abutment blocks 54 corresponds to the number of circuit boards 13. The capacitors 14 on the circuit board 13 are connected one-to-one and abut against the end of the capacitor 14 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 fixed by abutting the clamping mechanism 5. By rotating the clamping table 2, the electrode of the capacitor 14 is rotated so that the side of the capacitor 14 that passes through the circuit board 13 faces upward, which facilitates the welding and fixing of the capacitor 14. The setting of the clamping mechanism 5 can reduce the probability of the capacitor 14 falling off the circuit board 13 under the action of gravity.

[0042] 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 slidably disposed on the fixed rod 511. An electric push cylinder is embedded inside the fixed rod 511. The piston rod of the electric push cylinder is fixedly connected to the sliding rod 512 and drives the sliding rod 512 to slide. A transverse sliding rod 52 is fixed on the sliding rod 512. The sliding rod 512 can adjust the position of the abutment block 54 by sliding on the fixed rod 511, thereby adjusting the abutment block 54 to a suitable position according to the length of the capacitor 14 and improving the applicability of the abutment mechanism 5. A rotating seat 8 is raised and lowered on the base 1. An electric cylinder is installed on the base 1. The electric cylinder drives the rotating seat 8 to slide towards or away from the base 1. The clamping platform 2 is rotatably disposed on the rotating seat 8. The adjustable rotating seat 8 can be adjusted according to the adjustment of the abutment mechanism 5, thereby providing sufficient rotation space for the clamping platform 2 to rotate on the base 1.

[0043] 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 slidably disposed in the adjustment groove 7 of the longitudinal slide bar 53 and passes through the longitudinal slide bar 53. The fixing nut 92 is threadedly connected to the end of the sliding screw 91 that passes 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, thereby adjusting the position of the abutment block 54. The position of the abutment block 54 can be adjusted by tightening the fixing nut. The 92 can fix the position of the abutment block 54. The disassembly and assembly component 9 can facilitate the disassembly and assembly of the abutment block 54 and can also be used to adjust the position of the abutment block 54. The disassembly and assembly component 9 is also provided between the longitudinal slide rod 53 and the transverse slide rod 52. The sliding screw 91 of the disassembly and assembly component 9 between the longitudinal slide rod 53 and the transverse slide rod 52 is fixed on the longitudinal slide rod 53. The sliding screw 91 passes through the sliding groove 6 and is threadedly connected to the fixing nut 92. In this embodiment, the sliding screw 91 of the disassembly and assembly component 9 between the longitudinal slide rod 53 and the transverse slide rod 52 passes through the sliding groove 6 in the direction away from the base 1.

[0044] Reference Figure 1 , Figure 2 and Figure 3The clamping platform 2 includes a clamping frame 21 and receiving rods 22. The clamping frame 21 is rotatably mounted on the base 1 via a rotating seat 8. Two receiving rods 22 are provided, with the two receiving rods 22 respectively located on both sides of the clamping frame 21 along its length. The receiving rods 22 abut against the bottom of both ends of the circuit board 13 along its length. The receiving rods 22 facilitate the temporary placement of the circuit board 13 before clamping and fixing. The receiving rods 22 slide along the length of the clamping frame 21 and 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.

[0045] Reference Figure 1 , Figure 2 and Figure 3 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 capacitor 14 faces the base 1, the sliding screw 91 abuts against the pressure detection unit 10. The pressure detection unit 10 can be an electronic component that can provide feedback when pressure changes are detected, such as a piezoresistive sensor array, a capacitive sensor array, or a piezoelectric sensor. After the detected pressure changes are transmitted to the processing unit for data analysis and processing, the drive unit drives the laser welding equipment to perform automated welding at the corresponding points.

[0046] The implementation principle of this application embodiment is as follows: 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 abutting blocks 54 according to the number of capacitors 14, and make the abutting blocks 54 abut against the capacitors 14 one by one. The abutting of the abutting blocks 54 can be achieved by first adjusting the sliding rod 512 and then sliding the abutting blocks 54 to abut, or by driving first adjusting the abutting blocks 54 and then sliding them to abut through the sliding rod 512. Then drive the clamping table 2 to rotate 180° to flatten the circuit board 13, and then detect the position of the capacitor 14 through the pressure detection unit 10 and weld the electrodes of the capacitor 14 at the corresponding position through the laser welding equipment to complete the welding and fixing of the capacitor 14. Example

[0047] The difference between this embodiment and embodiment 1 is that the method and structure for detecting the position of capacitor 14 in this embodiment are different from those in embodiment 1.

[0048] Reference Figure 4 and Figure 5A signal element 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 stop 151, a calibration slide rod 152, and a calibration drive block 153. The calibration stop 151 is slidably disposed on the side of the sliding screw 91 away from the abutment block 54. The calibration stop 151 blocks or moves away from the signal element 11 by sliding. The calibration slide rod 152 is slidably disposed on the abutment block 54 away from the sliding screw. One end of the calibration slide rod 152 extends out of the abutment block 54, while the other end slides into the sliding screw 91. The calibration drive block 153 is fixed on the calibration stop block 151, which is a wedge-shaped block. One end of the calibration slide rod 152 inserted into the sliding screw 91 abuts against the wedge-shaped surface. When the abutment block 54 abuts against the capacitor 14, the capacitor 14 drives the calibration slide rod 152 to slide. The calibration screw, through the calibration drive block 153, drives the calibration stop block 151 to slide away from the signal element 11, allowing the signal element 11 to properly match the signal receiver 12. The calibration components can reduce the impact of multiple abutment mechanisms 5 on the position detection and positioning of capacitor 14 when multiple abutment mechanisms 5 are installed. A blocking spring 16 is provided between the calibration drive block 153 and the sliding screw 91. The blocking spring 16 drives the calibration stop block 151 to slide and block the signal component 11. A reset spring 17 is provided between the calibration slide rod 152 and the sliding screw 91. The reset spring 17 drives the calibration slide rod 152 to slide out of the abutment block 54 when the capacitor 14 is separated from the abutment block 54. The signal component 11 is a reflector block, which is a plane mirror. The signal receiver 12 is a laser scanner. After the capacitor 14 is installed on the circuit board 13 and the clamping table 2 is flipped, the laser scanner starts to scan the bottom of the clamping table 2. When the laser scanner scans the reflector block, the reflector block will reflect the laser. The laser scanner locates the installation coordinates of the capacitor 14 by the position of the reflected laser. The coordinates are fed back to the processing unit. After the processing unit receives and analyzes the data, the drive unit drives the laser welding equipment to perform automated welding at the corresponding point.

[0049] The implementation principle of this application embodiment is as follows: 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 abutting blocks 54 according to the number of capacitors 14, and make the abutting blocks 54 abut against the capacitors 14 one by one. The abutting blocks 54 can be abutted by first adjusting the sliding rod 512 and then sliding the abutting blocks 54 to abut, or by driving first adjusting the abutting blocks 54 and then sliding them to abut through the sliding rod 512. Then drive the clamping table 2 to rotate 180° to flatten the circuit board 13, scan the position coordinates of the capacitor 14 with a laser scanner, and weld the electrodes of the capacitor 14 at the corresponding positions with a laser welding device to complete the welding and fixing of the capacitor 14. Example

[0050] The difference between this embodiment and embodiment 2 is that the signal components and signal receivers in this embodiment are different from those in embodiment 2.

[0051] Reference Figure 6 Signal component 11 is an infrared transmitter, and signal receiver 12 is an infrared sensing plate. After capacitor 14 is installed on circuit board 13 and clamping platform 2 is flipped, the infrared transmitter emits infrared rays. The infrared rays illuminate the infrared sensing plate, and the infrared sensing plate uses the coordinates of the received infrared signal to locate and determine the installation coordinates of capacitor 14. By feeding back the coordinates to the processing unit, the processing unit receives and analyzes the signals, and then drives the laser welding equipment to perform automated welding at the corresponding points through the drive unit.

[0052] The implementation principle of this application embodiment is as follows: 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 capacitors 14 at appropriate positions on the circuit board 13. After the capacitors 14 are installed, adjust the number of abutment blocks 54 according to the number of capacitors 14, and make the abutment blocks 54 correspond one-to-one with the capacitors 14 and abut against them. The abutment blocks 54 can be abutted by first adjusting the sliding rod 512 and then sliding the abutment blocks 54 to abut, or by driving the adjustment of the abutment blocks 54 first and then sliding them to abut against them via the sliding rod 512. Then, drive the clamping table 2 to rotate 180° to flatten the circuit board 13, and then irradiate it with infrared light onto the infrared sensing plate. The infrared sensing plate will locate the coordinates of the points receiving the infrared signal to determine the installation coordinates of the capacitors 14. Then, weld the electrodes of the capacitors 14 according to the coordinates, completing the welding and fixing of the capacitors 14.

[0053] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A capacitor laser welding fixture, characterized in that: Includes a base (1), on which a clamping platform (2) is rotatably mounted, and on which a plurality of clamping blocks (3) are slidably mounted, the plurality of clamping blocks (3) being respectively clamped around the circuit board (13) by sliding. An abutment mechanism (5) is installed on the clamping platform (2), the abutment mechanism (5) including 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 with... The transverse slide bar (52) is fixed on the connecting rod (51) and the longitudinal slide bar (53) is slidably disposed on the transverse slide bar (52). The longitudinal slide bar (53) slides along the length direction of the transverse slide bar (52). Several longitudinal slide bars (53) are detachably disposed on the transverse slide bar (52). The abutment block (54) is slidably disposed on the longitudinal slide bar (53) along the length direction of the longitudinal slide bar (53). The abutment block (54) is detachably disposed. There are several abutment blocks (54), the number of which corresponds one-to-one with the capacitors (14) on the circuit board (13) and abut against the end of the capacitors (14) away from the circuit board (13); a rotating seat (8) is raised and lowered on the base (1), and the clamping platform (2) is rotatably mounted on the rotating seat (8); a disassembly assembly (9) is provided between the abutment blocks (54) and the longitudinal slide bar (53), the disassembly assembly (9) including a sliding screw (91) and a fixing nut (92). 2) The sliding screw (91) is fixed on the abutment block (54), the sliding screw (91) is slidably disposed on 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); a signal element (11) is embedded on the side of the sliding screw (91) away from the abutment block (54), and 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 stop (151), a calibration slide (152), and a calibration drive block (153). The calibration stop (151) is slidably disposed on the side of the sliding screw (91) away from the abutment block (54). The calibration stop (151) is blocked or moved away from the signal element (11) by sliding. The calibration slide (152) is slidably disposed on the end of 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) 153) Fixed on the calibration stop (151), the calibration stop (151) is a wedge-shaped block. The calibration slide rod (152) is inserted into the sliding screw (91) at one end and abuts against the wedge-shaped surface. A blocking spring (16) is provided between the calibration drive block (153) and the sliding screw (91). The blocking spring (16) drives the calibration stop (151) to slide the blocking signal element (11). A reset spring (17) is provided between the calibration slide rod (152) and the sliding screw (91). When the capacitor (14) disengages from the abutment block (54), the reset spring (17) drives the calibration slide rod (152) to slide out of the abutment block (54).

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

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

4. A capacitor laser welding fixture according to claim 3, characterized in that: The receiving rod (22) is slidably disposed along the length direction of the clamping frame (21).

5. A capacitor laser welding fixture according to claim 4, characterized in that: The signal element (11) is a reflector block, and the signal receiver (12) is a laser scanner.

6. A capacitor laser welding fixture according to claim 4, characterized in that: The signal element (11) is an infrared transmitter, and the signal receiver (12) is an infrared sensor.

Images