Welding device for resonator machining and using method of welding device

Abstract

The invention provides a welding device for resonator machining and a using method thereof, and relates to the technical field of welding, the welding device comprises an assembly base, and the top of the assembly base is provided with a sliding groove structure used for transverse and longitudinal guiding; a U-shaped bracket matched with the sliding strip structure is arranged on the front side of the top of the assembling base in a sliding mode, and two sets of transverse guide rods are fixedly arranged in the middle of the U-shaped bracket; sliding blocks are arranged outside the two transverse guide rods in a sliding mode, and a U-shaped frame with a backward opening is fixedly arranged at the tops of the sliding blocks. The L-shaped clamping base is arranged, the self-adaptive installation and mobile positioning functions are provided, the self-locking effect is provided through the spring rod, a circuit board can be installed in a self-adaptive mode, the driving lead screw is used for driving the U-shaped bracket to move backwards to achieve automatic adjustment of the longitudinal axis, the adjusting lead screw is used for driving the U-shaped frame to move left and right to achieve adjustment of the transverse axis, and the circuit board can be installed in a self-adaptive mode. The pin mounting position can be automatically aligned with the spot welding position by controlling the double shafts to move through a program, and the problem that in the prior art, an automatic positioning spot welding function is lacked is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and in particular to a welding device for resonator processing and a use method thereof. Background Art

[0002] The resonator is an electronic component that can generate a resonant frequency. It mainly uses a quartz crystal and is assembled and connected through two-pole or three-pole pins. It is fixed by spot welding technology. After the pins pass through the control circuit board, the pins are spot welded and the circuit board is fixed to complete the assembly. It can be used after subsequent power-on testing.

[0003] The welding devices currently used have the following disadvantages:

[0004] 1. The existing welding method uses manual spot welding or robot spot welding for fixing, which is inconvenient for fast automatic positioning spot welding and has limited work efficiency;

[0005] 2. Lack of synchronous welding and feeding drive function, which makes it inconvenient to automatically align the welding points for spot welding;

[0006] 3. Need to cut off the pins manually, which is inconvenient to remove quickly. Summary of the Invention

[0007] In view of this, the present invention addresses the deficiencies in the above-mentioned prior art and provides a welding device for resonator processing and a method for using the same.

[0008] The present invention provides a welding device for resonator processing and a method of using the same, specifically comprising: an assembly base, wherein the top of the assembly base is provided with a slide groove structure for horizontal and vertical guidance; a U-shaped bracket is slidably provided on the front side of the top of the assembly base in cooperation with the slide structure, and two groups of cross guide rods are fixedly provided in the middle of the U-shaped bracket; sliders are slidably provided outside the two groups of cross guide rods, and a U-shaped frame opening toward the rear is fixedly provided on the top of the slider; two groups of side sliding seats are slidably provided on both ends of the top rear side of the assembly base in cooperation with the slide; spot welding seats are slidably provided on the front sides of the tops of the side sliding seats in cooperation with the slide structure, and micro-electric cylinders for controlling the spot welding seats are fixedly provided on the tops of the side sliding seats; spot welders are fixedly provided in the middle of the spot welding seats; feeders are fixedly provided above the adjacent edges of the two groups of side sliding seats; and an upwardly inclined cutter is mounted in the middle of the top of the assembly base.

[0009] Optionally, a driving screw is rotatably provided in the middle of the top front side of the assembly base, and a longitudinal axis motor is fixedly provided at the start of the assembly base, which is transmission-connected to the driving screw; the driving screw is threadedly connected to the U-shaped bracket.

[0010] Optionally, an adjusting screw is provided in the middle of the U-shaped bracket for rotation, and a horizontal axis motor is fixedly provided on the outside of the U-shaped bracket. The horizontal axis motor is transmission-connected to the adjusting screw, and the adjusting screw is threadedly connected to the slider below the U-shaped frame.

[0011] Optionally, the inner walls on both sides of the U-shaped frame are slidably provided with L-shaped clamping seats in cooperation with two sets of spring rods with limits, and the upper edges of the adjacent surfaces of the L-shaped clamping seats on both sides are rounded to facilitate the placement of circuit boards.

[0012] Optionally, side electric cylinders are provided between the sides of the side sliding seats and both sides of the top of the assembly base to control the movement; solder shafts are rotatably provided above the rear sides of the two groups of side sliding seats.

[0013] Optionally, a linkage shaft is rotatably arranged above the side sliding seat, and an internal ratchet gear is fixedly arranged at the front end of the linkage shaft; a control rack is fixedly arranged below the adjacent surfaces of the two groups of spot welding seats, and the control rack is engaged with the internal ratchet gear to form a one-way transmission.

[0014] Optionally, guide tubes are integrally provided on the front and rear sides of the bottom of the feeder, the entrance of the rear guide tube is chamfered, and the front guide tube is tilted upward; a conveying wheel is rotatably provided inside the feeder, and an arc-shaped groove structure is provided on the outside of the conveying wheel, in which a rubber block is embedded; a bevel gear transmission connection is provided between the rotating shaft of the conveying wheel and the linkage shaft on the same side.

[0015] Optionally, the spot welding position of the spot welder is aligned with the opening of the front guide tube.

[0016] Optionally, a method for using a welding device for resonator processing comprises the following steps:

[0017] 1) Install the solder, place the solder wire coil outside the solder shaft, then pull out the solder wire, pass it through the rear guide tube, and lead it out from the front guide tube;

[0018] 2) Install the circuit board. Place the resonant circuit board between the two sets of L-shaped clamps and secure it with the self-locking effect provided by the spring rod.

[0019] 3) Set the program. When batch welding a certain type of circuit board, set the automatic movement program according to the width of its pins to facilitate automatic feeding;

[0020] 4) Automatic feeding: according to the spot welding position, start the longitudinal axis motor to drive the driving screw to rotate, and use the driving screw to drive the U-shaped bracket to move backward to realize the automatic adjustment of the longitudinal axis; start the horizontal axis motor to drive the adjusting screw to rotate, and use the adjusting screw to drive the U-shaped frame to move left and right to realize the adjustment of the horizontal axis, and then align the two sets of pins to the welding position, and then insert the resonator component pins into the welding position;

[0021] 5) Adjust the spot welding position. According to the stitch width, use the program to control the side electric cylinder to drive the side slide to move. By moving the side slide, align the discharge port of the front guide tube with the stitch position;

[0022] 6) Automatic spot welding: Start the micro-electric cylinder to move the spot welding seats on both sides close to the pins, move the spot welder close to the pins, and control the rack to move, driving the inner ratchet gear to rotate, the inner ratchet gear drives the linkage shaft to rotate, the linkage shaft cooperates with the bevel gear to drive the conveying wheel to rotate, and use the conveying wheel to convey the solder forward and push out a certain amount of solder. At this time, the spot welder contacts the solder to achieve spot welding of the pins;

[0023] 7) Reset: After completing one welding, reset the above steps. During this period, the pins are cut off by the cutter and fall into the middle groove of the assembly base.

[0024] The beneficial effects are as follows:

[0025] 1. The present invention is provided with an L-shaped clamp seat, which provides adaptive installation and mobile positioning functions. The self-locking effect provided by the spring rod can adaptively install the circuit board. The driving screw is used to drive the U-shaped bracket to move backward to realize automatic adjustment of the longitudinal axis. The adjusting screw is used to drive the U-shaped frame to move left and right to realize adjustment of the horizontal axis. The dual-axis movement is controlled by the program to automatically align the pin installation position with the spot welding position, thereby improving the processing efficiency.

[0026] 2. Set up the control rack to synchronize spot welding and advance the solder. Start the micro-electric cylinder to move the spot welding seats on both sides close to the pins, move the spot welder close to the pins, and control the rack to move at the same time to drive the inner ratchet gear to rotate. The inner ratchet gear drives the linkage shaft to rotate. The linkage shaft cooperates with the bevel gear to drive the conveyor wheel to rotate. The conveyor wheel is used to transport the solder forward and push out a certain amount of solder to achieve spot welding. In addition, the spot welding position can also be adjusted.

[0027] 3. A cutter is provided to provide a cutting function. After spot welding, the circuit board is moved forward, and the pins are cut off when passing through the cutter and fall into the middle slot of the assembly base. The assembly base can be erected and installed to facilitate the removal of the cut pins. The rear end of the L-shaped clamp is a protruding structure to ensure that the circuit board is driven to move. After positioning, the pins are installed, and the cutter will not affect the installation of the pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present invention is shown;

[0029] Figure 2 Shows an axonometric structural diagram of an embodiment of the present invention;

[0030] Figure 3 A schematic diagram of the structure of an embodiment of the present invention from a side view is shown;

[0031] Figure 4 A rear view structural diagram of an embodiment of the present invention is shown;

[0032] Figure 5 A schematic diagram of the axis-to-elevation structure of an embodiment of the present invention is shown;

[0033] Figure 6 A schematic diagram of a side plan view of an embodiment of the present invention is shown;

[0034] Figure 7 Shows a schematic diagram of the spot welding structure of an embodiment of the present invention;

[0035] Figure 8 Shows an embodiment of the present invention Figure 7 A structural diagram from another angle;

[0036] Figure 9 The figure shows a schematic three-dimensional cross-sectional structure diagram of a feeder in an embodiment of the present invention.

[0037] Reference Signs List

[0038] 1. Assembly base; 101. Drive screw; 102. Longitudinal axis motor; 2. U-shaped bracket; 201. Horizontal guide rod; 202. Adjustment screw; 203. Horizontal axis motor; 204. U-shaped frame; 205. Spring rod; 206. L-shaped clamp seat; 3. Side sliding seat; 301. Side electric cylinder; 302. Solder shaft; 303. Spot welding seat; 304. Micro electric cylinder; 4. Spot welder; 5. Linkage shaft; 501. Internal ratchet gear; 6. Control rack; 7. Feeder; 701. Guide tube; 702. Conveyor wheel; 8. Cutter. DETAILED DESCRIPTION

[0039] In order to make the purpose, solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0040] Example 1: Please refer to the accompanying drawings in the specification. Figures 1 to 9 As shown:

[0041] The present invention proposes a welding device for resonator processing and a method of using the same, comprising: an assembly base 1, wherein the top of the assembly base 1 is provided with a slide groove structure for horizontal and vertical guidance; a U-shaped bracket 2 is slidably provided on the front side of the top of the assembly base 1 in cooperation with the slide structure, and two groups of cross guide rods 201 are fixedly provided in the middle of the U-shaped bracket 2; sliders are slidably provided outside the two groups of cross guide rods 201, and a U-shaped frame 204 opening toward the rear is fixedly provided on the top of the slider; two groups of side sliding seats 3 are slidably provided on both ends of the top rear side of the assembly base 1 in cooperation with the slide structure; spot welding seats 303 are slidably provided on the front sides of the tops of the side sliding seats 3, and micro-electric cylinders 304 for controlling the spot welding seats 303 are fixedly provided on the tops of the side sliding seats 3; a spot welder 4 is fixedly provided in the middle of the spot welding seats 303; a feeder 7 is fixedly provided above the adjacent edges of the two groups of side sliding seats 3; an upwardly inclined cutter 8 is mounted in the middle of the top of the assembly base 1.

[0042] Among them, a driving screw 101 is rotatably set in the middle of the top front side of the assembly base 1, and a longitudinal axis motor 102 is fixedly set at the start of the assembly base 1. The longitudinal axis motor 102 is transmission-connected to the driving screw 101; the driving screw 101 is threadedly connected to the U-shaped bracket 2.

[0043] Among them, an adjusting screw 202 is rotated in the middle of the U-shaped bracket 2, and a horizontal axis motor 203 is fixedly set on the outside of the U-shaped bracket 2. The horizontal axis motor 203 is transmission-connected to the adjusting screw 202, and the adjusting screw 202 is threadedly connected to the slider below the U-shaped frame 204.

[0044] Among them, the inner walls on both sides of the U-shaped frame 204 are slidably provided with L-shaped clamping seats 206 in cooperation with two sets of spring rods 205 with limits. The upper edges of the adjacent surfaces of the L-shaped clamping seats 206 on both sides are chamfered to facilitate the placement of circuit boards.

[0045] Among them, side electric cylinders 301 are set between the sides of the side sliding seats 3 and the two sides of the top of the assembly base 1 to control the movement; solder shafts 302 are rotatably set on the upper rear sides of the two groups of side sliding seats 3.

[0046] Among them, a linkage shaft 5 is rotatably set above the side sliding seat 3, and an internal ratchet gear 501 is fixedly set at the front end of the linkage shaft 5; a control rack 6 is fixedly set below the adjacent surfaces of the two groups of spot welding seats 303, and the control rack 6 is engaged with the internal ratchet gear 501 to form a one-way transmission.

[0047] Among them, guide tubes 701 are integrally provided on the front and rear sides of the bottom of the feeder 7. The entrance of the rear guide tube 701 is chamfered, and the front guide tube 701 is tilted upward; a conveying wheel 702 is rotatably provided inside the feeder 7, and an arc-shaped groove structure is provided on the outside of the conveying wheel 702, in which a rubber block is embedded; a bevel gear transmission connection is provided between the rotating shaft of the conveying wheel 702 and the linkage shaft 5 on the same side.

[0048] The spot welding position of the spot welder 4 is aligned with the opening of the front guide tube 701 .

[0049] 1) Install the solder, place the solder wire coil outside the solder shaft 302, then pull out the solder wire, pass the solder wire through the rear guide tube 701, and lead it out from the front guide tube 701;

[0050] 2) Install the circuit board. Place the resonant circuit board between the two sets of L-shaped clamps 206 and secure it with the self-locking effect provided by the spring rod 205.

[0051] 3) Set the program. When batch welding a certain type of circuit board, set the automatic movement program according to the width of its pins to facilitate automatic feeding;

[0052] 4) Automatic feeding: According to the spot welding position, the longitudinal axis motor 102 is started to drive the driving screw 101 to rotate, and the driving screw 101 is used to drive the U-shaped bracket 2 to move backward to realize the automatic adjustment of the longitudinal axis; the transverse axis motor 203 is started to drive the adjusting screw 202 to rotate, and the adjusting screw 202 is used to drive the U-shaped frame 204 to move left and right to realize the adjustment of the transverse axis, thereby aligning the two sets of pins at the welding position, and then inserting the resonator component pins into the welding position;

[0053] 5) Adjust the spot welding position. According to the stitch width, use the program to control the side electric cylinder 301 to drive the side slide 3 to move. By moving the side slide 3, align the discharge port of the front guide tube 701 with the stitch position;

[0054] 6) Automatic spot welding: Start the micro-electric cylinder 304 to move the spot welding seats 303 on both sides close to the pins, move the spot welder 4 close to the pins, and at the same time control the rack 6 to move, drive the inner ratchet gear 501 to rotate, the inner ratchet gear 501 drives the linkage shaft 5 to rotate, the linkage shaft 5 cooperates with the bevel gear to drive the conveying wheel 702 to rotate, and use the conveying wheel 702 to convey the solder forward and push out a certain amount of solder. At this time, the spot welder 4 contacts the solder to achieve spot welding of the pins;

[0055] 7) Reset: After completing one welding step, the above steps are reset. During this period, the pins are cut off by the cutter 8 and fall into the middle groove of the assembly base 1.

[0056] like Figure 1-9As shown, the soldering wire coil is placed outside the solder shaft 302, and then the soldering wire is pulled out, passed through the rear guide tube 701, and guided out from the front guide tube 701; the circuit board for resonance is placed between the two sets of L-shaped clamps 206 and fixed by the spring rod 205 to provide a self-locking effect; according to the position of the spot welding, the longitudinal axis motor 102 is started to drive the driving screw 101 to rotate, and the driving screw 101 is used to drive the U-shaped bracket 2 to move backward to achieve automatic adjustment of the longitudinal axis; the transverse axis motor 203 is started to drive the adjusting screw 202 to rotate, and the adjusting screw 202 is used to drive the U-shaped frame 204 to move left and right to achieve adjustment of the transverse axis, thereby aligning the two sets of pins at the welding position, and then inserting the component pins of the resonator into the welding position;

[0057] The program controls the side electric cylinder 301 to drive the side slide 3 to move. By moving the side slide 3, the discharge port of the front guide tube 701 is aligned with the stitch position.

[0058] Start the micro-electric cylinder 304 to move the spot welding seats 303 on both sides closer to the pins, and move the spot welder 4 close to the pins. At the same time, control the rack 6 to move, drive the inner ratchet gear 501 to rotate, and the inner ratchet gear 501 drives the linkage shaft 5 to rotate. The linkage shaft 5 cooperates with the bevel gear to drive the conveying wheel 702 to rotate. The conveying wheel 702 is used to convey the solder forward and push out a certain amount of solder. At this time, the spot welder 4 contacts the solder to achieve spot welding of the pins.

[0059] Example 2: Based on Example 1, during the spot welding process, when the control rack 6 moves, it drives the inner ratchet gear 501 to rotate, and during the resetting process, the control rack 6 will not drive the inner ratchet gear 501 to rotate, realizing one-way transmission, and a transmission structure with the same function can be used for transmission.

[0060] Example 3: Based on Example 1, after positioning is completed, the pins are installed, and after spot welding, the circuit board is moved forward. When the pins pass through the cutter 8, they are cut off and fall into the middle groove of the assembly base 1. The assembly base 1 can be installed and erected to facilitate the removal of the cut pins. The rear end of the L-shaped clamping seat 206 is a protruding structure to ensure that the circuit board is driven to move.

[0061] Other electric drive devices for automatic cutting can be used to replace the cutter 8 for cutting.

[0062] Specific usage and function of this embodiment: In the present invention, when using, first install the solder, place the solder wire coil on the outside of the solder shaft 302, then pull out the solder wire, pass the solder wire through the rear guide tube 701, and lead it out from the front guide tube 701;

[0063] Install the circuit board. Place the resonant circuit board between the two sets of L-shaped clamps 206 and secure it with the self-locking effect provided by the spring rod 205. Set the program. When batch soldering a certain type of circuit board, set the automatic movement program according to the width of its pins to facilitate automatic feeding.

[0064] According to the spot welding position, the longitudinal axis motor 102 is started to drive the driving screw 101 to rotate, and the driving screw 101 is used to drive the U-shaped bracket 2 to move backward to realize the automatic adjustment of the longitudinal axis; the transverse axis motor 203 is started to drive the adjusting screw 202 to rotate, and the adjusting screw 202 is used to drive the U-shaped frame 204 to move left and right to realize the adjustment of the transverse axis, thereby aligning the two sets of pins at the welding position, and then inserting the component pins of the resonator into the welding position;

[0065] Adjust the spot welding position. According to the width of the stitch, use the program to control the side electric cylinder 301 to drive the side slide 3 to move. By moving the side slide 3, align the discharge port of the front guide tube 701 with the stitch position. Start the micro-electric cylinder 304 to move the spot welding seats 303 on both sides closer to the stitch, and move the spot welder 4 close to the stitch. At the same time, control the rack 6 to move, drive the inner ratchet gear 501 to rotate, and the inner ratchet gear 501 drives the linkage shaft 5 to rotate. The linkage shaft 5 cooperates with the bevel gear to drive the conveying wheel 702 to rotate. The conveying wheel 702 is used to convey the solder forward and push out a certain amount of solder. At this time, the spot welder 4 contacts the solder to achieve spot welding of the stitches.

[0066] After completing one welding operation, the above steps are reset, during which the pins are cut off by the cutter 8 and fall into the middle through groove of the assembly base 1 .

Claims

1. A welding device for resonator processing and a method of using the same, characterized in that: A welding device for resonator processing, comprising: an assembly base (1), the top of the assembly base (1) being provided with a slide groove structure for horizontal and vertical guidance; a U-shaped bracket (2) being slidably arranged on the front side of the top of the assembly base (1) in cooperation with the slide bar structure, two groups of transverse guide rods (201) being fixedly arranged in the middle of the U-shaped bracket (2); a sliding block being slidably arranged outside the two groups of transverse guide rods (201), a U-shaped frame (204) opening backwards being fixedly arranged on the top of the sliding block; and a U-shaped bracket (204) being fixedly arranged on the rear side of the top of the assembly base (1). Two groups of side sliding seats (3) are slidably arranged at both ends in cooperation with the sliding bar structure; a spot welding seat (303) is slidably arranged at the front side of the top of the side sliding seat (3) in cooperation with the sliding bar structure, and a micro-electric cylinder (304) for controlling the spot welding seat (303) is fixedly arranged at the top of the side sliding seat (3); a spot welder (4) is fixedly arranged in the middle of the spot welding seat (303); a feeder (7) is fixedly arranged above the adjacent edges of the two groups of side sliding seats (3); and an upwardly inclined cutter (8) is mounted in the middle of the top of the assembly base (1).

2. A welding device for resonator processing as claimed in claim 1, characterized in that: A driving screw (101) is rotatably arranged in the middle of the top front side of the assembly base (1); a longitudinal axis motor (102) is fixedly arranged at the start of the assembly base (1); the longitudinal axis motor (102) is transmission-connected to the driving screw (101); and the driving screw (101) is threadedly connected to the U-shaped bracket (2).

3. A welding device for resonator processing as claimed in claim 1, characterized in that: An adjusting screw (202) is rotatably arranged in the middle of the U-shaped bracket (2), a transverse axis motor (203) is fixedly arranged outside the U-shaped bracket (2), the transverse axis motor (203) is transmission-connected to the adjusting screw (202), and the adjusting screw (202) is threadedly connected to a slider below the U-shaped frame (204).

4. A welding device for resonator processing as claimed in claim 1, characterized in that: The inner walls on both sides of the U-shaped frame (204) are slidably provided with L-shaped clamping seats (206) in cooperation with two groups of spring rods (205) with limiting functions, and the upper edges of the adjacent surfaces of the L-shaped clamping seats (206) on both sides are rounded.

5. A welding device for resonator processing as claimed in claim 1, characterized in that: Side electric cylinders (301) are arranged between the sides of the side sliding seats (3) and the top sides of the assembly base (1) to control movement; solder shafts (302) are rotatably arranged on the upper rear sides of the two sets of side sliding seats (3).

6. A welding device for resonator processing as claimed in claim 1, characterized in that: A linkage shaft (5) is rotatably arranged above the side sliding seat (3), and an internal ratchet gear (501) is fixedly arranged at the front end of the linkage shaft (5); a control rack (6) is fixedly arranged below the adjacent surfaces of the two groups of spot welding seats (303), and the control rack (6) is meshed with the internal ratchet gear (501) to form a one-way transmission.

7. A welding device for resonator processing as claimed in claim 6, characterized in that: The front and rear sides of the bottom of the feeder (7) are integrally provided with guide tubes (701), the entrance of the rear guide tube (701) is chamfered, and the front guide tube (701) is tilted upward; a conveying wheel (702) is rotatably provided inside the feeder (7), an arc-shaped groove structure is provided on the outside of the conveying wheel (702), and a rubber block is embedded in the arc-shaped groove structure; a bevel gear transmission connection is provided between the rotating shaft of the conveying wheel (702) and the linkage shaft (5) on the same side.

8. A welding device for resonator processing as claimed in claim 7, characterized in that: The spot welding position of the spot welder (4) is aligned with the opening of the front guide tube (701).

9. A method for using a welding device for resonator processing according to any one of claims 1 to 8, characterized in that: The following steps are involved: 1) Install the solder, place the solder wire coil outside the solder shaft (302), then pull out the solder wire, pass the solder wire through the rear guide tube (701), and lead it out from the front guide tube (701); 2) Install the circuit board, place the circuit board for resonance between two sets of L-shaped clamp seats (206), and fix it by providing a self-locking effect through the spring rod (205); 3) Set the program. When batch welding a certain type of circuit board, set the automatic movement program according to the width of its pins to facilitate automatic feeding; 4) Automatic feeding: according to the spot welding position, the longitudinal axis motor (102) is started to drive the driving screw (101) to rotate, and the driving screw (101) is used to drive the U-shaped bracket (2) to move backward to realize automatic adjustment of the longitudinal axis; the transverse axis motor (203) is started to drive the adjusting screw (202) to rotate, and the adjusting screw (202) is used to drive the U-shaped frame (204) to move left and right to realize the adjustment of the transverse axis, thereby aligning the two sets of pins at the welding position, and then inserting the component pins of the resonator into the welding position; 5) Adjust the spot welding position, according to the stitch width, use the program to control the side electric cylinder (301) to drive the side slide seat (3) to move, and align the discharge port of the front guide tube (701) to the stitch position by moving the side slide seat (3); 6) Automatic spot welding: Start the micro-electric cylinder (304) to move the spot welding seats (303) on both sides close to the pins, move the spot welder (4) close to the pins, and control the rack (6) to move, drive the inner ratchet gear (501) to rotate, the inner ratchet gear (501) drives the linkage shaft (5) to rotate, the linkage shaft (5) cooperates with the bevel gear to drive the conveying wheel (702) to rotate, and use the conveying wheel (702) to convey the solder forward to push out a certain amount of solder. At this time, the spot welder (4) contacts the solder to achieve spot welding of the pins; 7) Reset: After completing one welding step, the above steps are reset, during which the pins are cut off by the cutter (8) and fall into the middle groove of the assembly base (1).

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