Welding positioning device

Abstract

The application provides a welding positioning device, belonging to the technical field of welding; the welding positioning device comprises a workbench and a component body; the top of the workbench is provided with a lifting frame; the inside of the lifting frame is provided with a welding mechanism; the welding mechanism comprises a first bidirectional screw rod, a first actuating rod and a second actuating rod; the first bidirectional screw rod is rotationally installed on the inner wall of the lifting frame; the welding positioning mechanism is arranged; the rotating plate is rotated; the rotating plate drives the second clamping seat to rotate by 90 degrees; the pin part of the component body is bent; after the operation is completed, the third actuating rod is started; the lifting frame vertically moves upwards until the two pins of the component body are inserted into two through holes on the circuit board; thus, the operations of the pin bending of the component body and the pin insertion into the through hole are both not manually performed; the processing efficiency is improved; and the labor is saved.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and more specifically, to a welding positioning device. Background Technology

[0002] Many discrete electronic components have a central body structure and leads extending from both ends. Examples include color-coded resistors, capacitors, and rectifier diodes, where the leads extend outwards from the two ends of the central cylindrical body. Taking a rectifier diode as an example, it is an electronic component based on the unidirectional conductivity of a semiconductor PN junction. It is primarily used to convert alternating current (AC) to direct current (DC). In practical applications, rectifier diodes are typically soldered onto a circuit board and electrically connected to achieve normal operation.

[0003] In existing technologies, when soldering rectifier diodes onto a circuit board, the leads of the rectifier diodes need to be bent at a 90-degree angle beforehand. After bending, the two leads are inserted into two through holes on the circuit board, and then the rectifier diodes are soldered by soldering the leads. However, the bending process and the process of inserting the leads into the through holes are all done manually. Manual bending is slow, the bending position needs to be judged visually by the workers, the bending process is easy to cause hand injuries to the workers, the bending position needs to be adjusted multiple times, and the process of inserting the leads into the through holes is very time-consuming for the workers. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a welding positioning device that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows:

[0006] This invention provides a welding positioning device, including a worktable and a component body. A lifting frame is provided on the top of the worktable, and a welding mechanism is provided inside the lifting frame. The welding mechanism includes:

[0007] A first bidirectional lead screw is rotatably mounted on the inner wall of a lifting frame. A first limiting rod is fixedly mounted on the inner wall of the lifting frame. A first lifting seat and two second lifting seats are sleeved between the first bidirectional lead screw and the first limiting rod. The two second lifting seats are respectively threaded onto both ends of the first bidirectional lead screw.

[0008] The first actuating rod is installed on the outer side wall of the first lifting seat. There are two first actuating rods. The output end of the first actuating rod is equipped with a first clamping seat.

[0009] The second actuating rod is installed on the outer side wall of the second lifting seat. There are two second actuating rods. An L-shaped plate is installed at the output end of the second actuating rod. A first support frame is fixedly installed on the top of the L-shaped plate. A rotating plate is rotatably installed on the inner wall of the first support frame. A second clamping seat is fixedly installed on the rotating plate.

[0010] In a preferred embodiment, a supporting gantry frame is installed on the top of the workbench, a first sliding frame is slidably fitted on the supporting gantry frame, a second sliding frame is slidably fitted inside the first sliding frame, a third actuating rod is installed at the bottom of the workbench, the output end of the third actuating rod is connected to the bottom of the lifting frame, a motor is installed on the right side of the lifting frame, and the output end of the motor is connected to the right side of the first bidirectional lead screw.

[0011] In a preferred embodiment, the lifting frame is provided with a bending position adjustment mechanism, which includes a slide rod. The slide rod is slidably sleeved inside the second clamping seat. A first clamping plate is fixedly installed on the side of the slide rod near the central axis of the lifting frame. A first spring is installed between the slide rod and the second clamping seat.

[0012] In a preferred embodiment, a second spring is installed on the side of the first clamping plate away from the first clamping seat, and a second clamping plate is installed on the other end of the second spring. The cross-sectional shape of the second clamping plate is the same as that of the first clamping plate, and the cross-sectional shape of the first clamping plate is semi-circular.

[0013] In a preferred embodiment, the L-shaped plate is provided with a bending speed adjustment mechanism, which includes a fourth actuating rod. The fourth actuating rod is installed at the bottom of the second lifting seat, and a lifting plate is installed at the output end of the fourth actuating rod. The lifting plate has a first straight slot that runs through the front and back.

[0014] In a preferred embodiment, the rotating plate has a second straight slot that runs through the front and back. A slider is slidably fitted inside the second straight slot. A first lead screw is rotatably installed inside the second straight slot. The slider is threaded onto the surface of the first lead screw. A sliding shaft is fixedly installed on the side of the slider near the central axis of the second lifting seat. The sliding shaft is slidably fitted inside the first straight slot.

[0015] In a preferred embodiment, a second support frame is fixedly installed on the top of the L-shaped plate, a rotating plate is rotatably installed on the side of the second support frame near the first support frame, and a second lead screw is rotatably installed on the side of the rotating plate near the first support frame. A first bevel gear is fixedly sleeved on the surface of the first lead screw, and a second bevel gear is fixedly sleeved on the surface of the second lead screw. The first bevel gear and the second bevel gear mesh with each other.

[0016] In a preferred embodiment, a second limiting rod is fixedly installed on the side of the rotating plate near the first support frame. A driving plate is sleeved between the second lead screw and the second limiting rod. An annular groove is formed on the outer surface of the driving plate. A vertically penetrating limiting groove is formed on the L-shaped plate. A driving frame is slidably sleeved inside the limiting groove. The driving plate is rotatably sleeved inside the driving frame.

[0017] In a preferred embodiment, two mounting plates are fixedly installed at the bottom of the L-shaped plate, and a spline sleeve is rotatably installed between the two mounting plates. The surface of the spline sleeve is provided with a threaded groove, and the drive frame is threadedly sleeved on the surface of the spline sleeve. A spline shaft is rotatably installed inside the second lifting seat, and the spline sleeve is slidably sleeved on the surface of the spline shaft.

[0018] In a preferred embodiment, a second bidirectional lead screw is fixedly installed on the inner wall of the lifting frame, a threaded sleeve is rotatably installed inside the second lifting seat, the threaded sleeve is threaded onto the surface of the second bidirectional lead screw, a first transmission rod is rotatably installed inside the second lifting seat, a second transmission rod is fixedly sleeved on the surface of the spline shaft, a third bevel gear is fixedly sleeved on the surface of the threaded sleeve, a fourth bevel gear is fixedly sleeved on the surface of the first transmission rod, the third bevel gear and the fourth bevel gear mesh with each other, a rotating wheel is fixedly sleeved between the first transmission rod and the second transmission rod, and a transmission belt is sleeved between the first transmission rod and the second transmission rod through the rotating wheel.

[0019] The welding positioning device provided by this invention has the following advantages:

[0020] 1. By setting up a welding mechanism, the rotating plate is rotated, which causes the second clamping seat to rotate 90 degrees, bending the lead part of the component. After completion, the third actuator is activated, causing the lifting frame to move vertically upward until the two leads of the diode body are inserted into the two through holes on the circuit board. Thus, the bending of the diode body leads and the insertion of the leads into the through holes do not need to be done manually, improving processing efficiency and saving labor.

[0021] 2. By setting up a bending position adjustment mechanism, the bending position of the diode body pins can be automatically positioned by means of the distance between the two through holes, thus greatly improving the bending accuracy of the diode body pins.

[0022] 3. By setting a bending speed adjustment mechanism, when the bending position of the pin is adjusted through the distance between the two through holes, the distance between the center of rotation of the sliding shaft and the rotating plate increases. The lifting rod needs to rise a greater distance to make the rotating plate rotate 90 degrees. As a result, the bending speed is slower when the bending position of the diode body pin is closer to the diode package shell, preventing the diode body pin from breaking due to stress during bending. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided by an embodiment of the present invention.

[0025] Figure 2 A schematic diagram of the sliding frame is provided for embodiments of the present invention.

[0026] Figure 3 A top-view schematic diagram of the sliding frame structure is provided for embodiments of the present invention.

[0027] Figure 4 A schematic diagram of the structure of the second lifting seat is provided for an embodiment of the present invention.

[0028] Figure 5 A schematic diagram of the second lifting seat structure, viewed from the right, is provided for an embodiment of the present invention.

[0029] Figure 6 A partial cross-sectional view of the second lifting seat is provided for an embodiment of the present invention.

[0030] Figure 7 An exploded view of the rotating plate and the first support frame is provided for an embodiment of the present invention.

[0031] Figure 8 A partial cross-sectional view of the rotating plate is provided for an embodiment of the present invention.

[0032] 1. Work table;

[0033] 2. Diode body;

[0034] 3. Lifting frame;

[0035] 401. First double-acting lead screw;

[0036] 402. First limit rod;

[0037] 403. First lifting seat;

[0038] 404. Second lifting seat;

[0039] 405. First actuating lever;

[0040] 406. First clamping seat;

[0041] 407. Second actuating lever;

[0042] 408, L-shaped plate;

[0043] 409. First support frame;

[0044] 410. Rotating plate;

[0045] 411. Second clamping seat;

[0046] 412. Supporting the gantry frame;

[0047] 413. First sliding frame;

[0048] 414. Second sliding frame;

[0049] 415. Third actuating lever;

[0050] 416. Electric motor;

[0051] 501. Slide bar;

[0052] 502. First clamping plate;

[0053] 503. First spring;

[0054] 504, the second spring;

[0055] 505. Second clamping plate;

[0056] 601. Fourth actuator;

[0057] 602. Lifting plate;

[0058] 603. First straight groove;

[0059] 604. Second straight groove;

[0060] 605, slider;

[0061] 606. First lead screw;

[0062] 607. Sliding shaft;

[0063] 608. Second support frame;

[0064] 609. Transfer board;

[0065] 610. Second lead screw;

[0066] 611. First bevel gear;

[0067] 612. Second bevel gear;

[0068] 613. Second limit rod;

[0069] 614. Driver board;

[0070] 615. Annular groove;

[0071] 616. Limiting groove;

[0072] 617. Drive frame;

[0073] 618. Mounting plate;

[0074] 619. Spline sleeve;

[0075] 620. Threaded groove;

[0076] 621. Splined shaft;

[0077] 622. Second double-acting lead screw;

[0078] 623. Threaded sleeve;

[0079] 624. First transmission rod;

[0080] 625. Second transmission rod;

[0081] 626. The third bevel gear;

[0082] 627. Fourth bevel gear;

[0083] 628. Transmission belt. Detailed Implementation

[0084] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0085] Reference Figures 1-8This invention provides a welding positioning device, including a workbench 1 and a diode body 2. A lifting frame 3 is mounted on the top of the workbench 1, and a welding mechanism is installed inside the lifting frame 3. The welding mechanism includes a first bidirectional lead screw 401, a first actuating rod 405, and a second actuating rod 407 (the actuating rod described herein can be hydraulically driven or pneumatically driven, and the same applies to actuating rods discussed later). The first bidirectional lead screw 401 is rotatably mounted on the inner wall of the lifting frame 3. A first limiting rod 402 is fixedly mounted on the inner wall of the lifting frame 3. A first lifting seat 403 and two second lifting seats 404 are sleeved between the first bidirectional lead screw 401 and the first limiting rod 402. The two second lifting seats 404 are mirror-image arranged along the central axis of the lifting frame 3. The second lifting seats 404 are threaded onto both ends of the first bidirectional lead screw 401, with the threads at both ends of the first bidirectional lead screw 401 having opposite directions. The first actuating rod 405 is installed on the outer wall of the first lifting seat 403, and two first actuating rods 405 are symmetrically arranged. A first clamping seat 406 is installed at the output end of the first actuating rod 405 for clamping the encapsulation shell portion of the diode body 2. The second actuating rod 407 is installed on the outer wall of the second lifting seat 404, and two second actuating rods 407 are symmetrically arranged. An L-shaped plate 408 is installed at the output end of the second actuating rod 407. A first support frame 409 is fixedly installed on the top of the L-shaped plate 408. A rotating plate 410 is rotatably installed on the inner wall of the first support frame 409, and a rotating plate 410 is fixedly mounted on the rotating plate 410. The workbench 1 is equipped with a second clamping seat 411 for clamping the pin portion of the diode body 2. A supporting gantry frame 412 is mounted on the top of the workbench 1. A first sliding frame 413 is slidably mounted on the supporting gantry frame 412. A second sliding frame 414 slides inside the first sliding frame 413. The first sliding frame 413 can only slide left and right, while the second sliding frame 414 can only slide forward and backward. Several clamps are mounted on the second sliding frame 414 for clamping the circuit board. A third actuating rod 415 is mounted on the bottom of the workbench 1. The output end of the third actuating rod 415 is connected to the bottom of the lifting frame 3. A motor 416 is mounted on the right side of the lifting frame 3. The output end of the motor 416 is connected to the right side of the first bidirectional lead screw 401. A welding mechanism is also included. The user adjusts the positions of the first sliding frame 413, the second sliding frame 414, and the two second lifting seats 404 to clamp the circuit board on the second sliding frame 414. The user places the package housing of the diode body 2 between the two first clamping seats 406. The user then activates the first actuating lever 405 to clamp the package housing of the diode body 2. The user then activates the second actuating lever 407, causing the second clamping seat 411 to drive the first clamping plate 502 and the second clamping plate 505 to clamp the pin portion of the diode body 2. The user then rotates the rotating plate 410, causing the second clamping seat 411 to rotate upwards by ninety degrees, bending the pin portion of the diode body 2. Finally, the user activates the third actuating lever 415, causing the lifting frame 3 to move vertically upwards.Until the two leads of diode body 2 are inserted into the two through holes on the circuit board, the leads and the circuit board are soldered using a soldering system. This eliminates the need for manual bending of the diode leads and insertion into the through holes, improving processing efficiency and saving labor. It can replace manual bending of the diode leads, and the bending position of the leads on the diode is automatically adjusted by the distance between the two through holes on the circuit board.

[0086] It is worth noting that the welding system includes a welding torch, a control module, a power module, etc., which are existing technologies and will not be described in detail here.

[0087] Reference Figures 1-8The lifting frame 3 is internally equipped with a bending position adjustment mechanism, which includes a slide rod 501. The slide rod 501 is slidably sleeved inside the second clamping seat 411. A first clamping plate 502 is fixedly installed on the side of the slide rod 501 near the central axis of the lifting frame 3. A first spring 503 is installed between the slide rod 501 and the second clamping seat 411. A second spring 504 is installed on the side of the first clamping plate 502 away from the first clamping seat 406. A second clamping plate 505 is installed on the other end of the second spring 504. A telescopic rod is installed between the first clamping plate 502 and the second clamping plate 505. The telescopic rod is sleeved inside the second spring 504. The cross-sectional shape of the first clamping plate 502 is different from that of the second clamping plate 505. 5. The cross-sectional shapes are consistent. The cross-sectional shape of the first clamping plate 502 is semi-circular. The combined shape of the two first clamping plates 502 is circular, and the inner diameter of the combined first clamping plates 502 is larger than the diameter of the pins on the diode body 2. By setting a bending position adjustment mechanism, before clamping the diode body 2, the user first clamps the circuit board inside the second slide frame 414, activates the second actuating rod 407, so that the two first clamping plates 502 and the two second clamping plates 505 move closer to each other until the cross-sections of the two second clamping plates 505 are combined into a circle. At this time, the two first clamping plates 502 and the two second clamping plates 505 are in the vertical state after the rotating plate 410 is rotated. Activate the third... The actuating rod 415 causes the lifting frame 3 to move the second clamping plate 505 upward. At this time, the positions of the first sliding frame 413 and the second sliding frame 414 are manually adjusted so that one side of the second clamping plate 505 is directly below one of the through holes on the circuit board, until the second clamping plate 505 on that side penetrates into the through hole. The other side of the second clamping plate 505, not being directly below the other through hole, is compressed by the circuit board, causing the second spring 504 to compress. At this time, the motor 416 is started, driving the first bidirectional lead screw 401 to rotate, causing the two second lifting seats 404 to move in opposite directions. Since one side of the second clamping plate 505 is located inside one of the through holes, it drives the circuit board to move upward. The device moves until the through hole on the other side is directly above the second clamping plate 505 on the other side. The rebound force of the second spring 504 causes the second clamping plate 505 on the other side to pass through the through hole, thereby determining the bending position of the pins on the diode body 2. The third actuating rod 415 and the second actuating rod 407 are then activated in reverse to return to their original positions, clamping the diode body 2. At this time, after the rotating plate 410 rotates 90 degrees, the bent parts of the pins on both sides of the diode body 2 are directly below the two through holes. Therefore, the bending position of the pins of the diode body 2 does not need to be visually judged by the operator. The bending position of the pins of the diode body 2 is automatically located by the distance between the two through holes, which greatly improves the bending accuracy of the pins of the diode body 2.

[0088] Reference Figures 4-8The L-shaped plate 408 is equipped with a bending speed adjustment mechanism, which includes a fourth actuating rod 601. The fourth actuating rod 601 is installed at the bottom of the second lifting seat 404. A lifting plate 602 is installed at the output end of the fourth actuating rod 601. A first straight groove 603 is formed on the lifting plate 602, which is longer than the length of the rotating plate 410. The rotation center of the rotating plate 410 coincides with the first straight groove 603. A second straight groove 604 is formed on the rotating plate 410, which is slidably fitted with a slider 605. A first lead screw 606 is rotatably installed inside the second straight groove 604. The slider 605 is threaded onto the surface of the first lead screw 606. A sliding shaft 607 is fixedly installed on the side of the slider 605 near the central axis of the second lifting seat 404. The sliding shaft 607 is slidably fitted inside the first straight groove 603. A bending speed adjustment mechanism is provided. When the user activates the fourth actuator 601, the lifting plate 602 moves upward. The first straight slot 603 presses against the sliding shaft 607, causing the sliding shaft 607 to rotate the rotating plate 410 by 90 degrees, bending the lead portion of the diode body 2. When the bending position of the lead is adjusted by the distance between the two through holes, the first lead screw 606 rotates simultaneously. With the limiting action of the second straight slot 604, the slider 605 drives the sliding shaft 607 to move away from the rotation center of the rotating plate 410. This increases the distance between the sliding shaft 607 and the rotation center of the rotating plate 410. The lifting plate 602 needs to rise a greater distance to rotate the rotating plate 410 by 90 degrees. As a result, the bending speed is slower when the bending position of the diode body 2 lead is closer to the diode package, preventing the diode body 2 lead from breaking due to stress during bending.

[0089] Reference Figures 1-8A second support frame 608 is fixedly installed on the top of the L-shaped plate 408. A rotating plate 609 is rotatably installed on the side of the second support frame 608 near the first support frame 409. A second lead screw 610 is rotatably installed on the side of the rotating plate 609 near the first support frame 409. One end of the second lead screw 610 passes through the interior of the rotating plate 410. The hinge joint of the second lead screw 610 and the rotating plate 410 coincides. A first bevel gear 611 is fixedly sleeved on the surface of the first lead screw 606. A second bevel gear 612 is fixedly sleeved on the surface of rod 610, and the first bevel gear 611 and the second bevel gear 612 mesh with each other. A second limiting rod 613 is fixedly installed on the side of rotating plate 609 near the first support frame 409. A driving plate 614 is sleeved between the second lead screw 610 and the second limiting rod 613, and the driving plate 614 and the second lead screw 610 are threaded together. An annular groove 615 is formed on the outer surface of the driving plate 614, and a vertically penetrating limiting groove is formed on the L-shaped plate 408. The drive frame 617 is slidably sleeved inside the positioning groove 616. The drive plate 614 is rotatably sleeved inside the drive frame 617 through the annular groove 615. By setting the second lead screw 610, when the drive frame 617 moves towards the first support frame 409, it drives the drive plate 614 to move. Under the limiting cooperation of the second limiting rod 613, the second lead screw 610 and the second bevel gear 612 rotate. Through the meshing connection of the first bevel gear 611 and the second bevel gear 612, the first bevel gear 611 drives the first lead screw 606 to rotate, thereby adjusting the position of the slider 605 in the second straight slot 604. When the rotating plate 410 rotates 90 degrees to bend the pin of the diode body 2, it drives the first lead screw 606 and the second lead screw 610 to rotate simultaneously. At this time, the second lead screw 610 drives the rotating plate 609 to rotate on the second support frame 608. The position of the second lead screw 610 and the rotation center of the rotating plate 410 always coincide.

[0090] Reference Figures 1-8Two mounting plates 618 are fixedly installed at the bottom of the L-shaped plate 408. A spline sleeve 619 is rotatably installed between the two mounting plates 618. The surface of the spline sleeve 619 has a threaded groove 620. The drive frame 617 is threaded onto the surface of the spline sleeve 619 through the threaded groove 620. A spline shaft 621 is rotatably installed inside the second lifting seat 404. The spline sleeve 619 is slidably fitted onto the surface of the spline shaft 621. A second bidirectional lead screw 622 is fixedly installed on the inner wall of the lifting frame 3. A through hole is opened on the first lifting seat 403. Both the first and second double-acting lead screws 401 and 622 are fitted inside the through hole and do not contact the first lifting seat 403. A threaded sleeve 623 is rotatably mounted inside the second lifting seat 404, and the threaded sleeve 623 is threaded onto the surface of the second double-acting lead screw 622. A first transmission rod 624 is rotatably mounted inside the second lifting seat 404. A second transmission rod 625 is fixedly fitted onto the surface of the splined shaft 621. A third bevel gear 626 is fixedly fitted onto the surface of the threaded sleeve 623. A third transmission gear 626 is fixedly fitted onto the surface of the first transmission rod 624. A fourth bevel gear 627 meshes with the third bevel gear 626. A rotating wheel is fixedly sleeved between the first transmission rod 624 and the second transmission rod 625. A transmission belt 628 is sleeved between the first transmission rod 624 and the second transmission rod 625 via the rotating wheel. By setting a splined shaft 621 and a splined sleeve 619, when the first bidirectional lead screw 401 rotates to adjust the position of the two second lifting seats 404, the threaded connection between the first bidirectional lead screw 401 and the threaded sleeve 623 allows the threaded sleeve 623 to... The third bevel gear 626 is driven to rotate. Through the meshing connection between the third bevel gear 626 and the fourth bevel gear 627, the fourth bevel gear 627 drives the first transmission rod 624 to rotate. Through the cooperation of the rotating wheel and the transmission belt 628, the second transmission rod 625 drives the spline shaft 621 to rotate. Through the meshing connection between the teeth of the spline shaft 621 and the teeth of the spline sleeve 619, the spline sleeve 619 rotates. Under the limiting cooperation of the limiting groove 616, the drive frame 617 moves towards the first support frame 409.

[0091] Specifically, the working process or principle of this rectifier diode wire bonding device is as follows: During use, the circuit board is clamped inside the second sliding frame 414. The second actuating rod 407 is activated, causing the two first clamping plates 502 and the two second clamping plates 505 to move closer together until the cross-sections of the two second clamping plates 505 form a circle. The third actuating rod 415 is activated, causing the lifting frame 3 to move the second clamping plates 505 upwards. At this time, the positions of the first sliding frame 413 and the second sliding frame 414 are manually adjusted so that one side of the second clamping plate 505 is positioned directly below one of the through holes on the circuit board, until the second clamping plate 505 on that side penetrates into the through hole (the outer diameter of the assembled second clamping plates 505 is smaller than the inner diameter of the through hole, thus allowing insertion). (Through hole), the second clamping plate 505 on the other side, not directly below the other through hole, is compressed by the circuit board, causing the second spring 504 to compress. At this time, the motor 416 is started, driving the first bidirectional lead screw 401 to rotate, causing the two second lifting seats 404 to move in opposite directions. Since one side of the second clamping plate 505 is located inside one of the through holes, it drives the circuit board to move together until the other side of the through hole is directly above the other side of the second clamping plate 505. The rebound force of the second spring 504 causes the other side of the second clamping plate 505 to pass through the through hole, thereby determining the bending position of the pin on the diode body 2. At the same time, through the threaded connection between the first bidirectional lead screw 401 and the threaded sleeve 623, the thread... Sleeve 623 drives the third bevel gear 626 to rotate. Through the meshing connection between the third bevel gear 626 and the fourth bevel gear 627, the fourth bevel gear 627 drives the first transmission rod 624 to rotate. Through the cooperation of the rotating wheel and the transmission belt 628, the second transmission rod 625 drives the spline shaft 621 to rotate. Through the meshing connection between the teeth of the spline shaft 621 and the spline sleeve 619, the spline sleeve 619 rotates. Under the limiting engagement of the limiting groove 616, the drive frame 617 moves towards the first support frame 409, driving the drive plate 614 to move. Under the limiting engagement of the second limiting rod 613, the second lead screw 610 and the second bevel gear 612 rotate. Through the limiting engagement of the first bevel gear 611 and the second bevel gear 61... The meshing connection of pinion gear 611 causes the first bevel gear 611 to drive the first lead screw 606 to rotate, thereby adjusting the position of slider 605 within the second straight slot 604. This reverses the operation, activating the third actuating rod 415 and the second actuating rod 407 to return them to their original positions. The first actuating rod 405 then clamps the package housing of the diode body 2. The second actuating rod 407 causes the second clamping seat 411 to drive the first clamping plate 502 and the second clamping plate 505 to clamp the lead portion of the diode body 2. The user then activates the fourth actuating rod 601, causing the lifting plate 602 to move upwards. Through the pressure of the first straight slot 603 on the sliding shaft 607, the sliding shaft 607 drives the rotating plate 410 to rotate 90 degrees. The rotating plate 410 then drives the first clamping plate 502.This bends the leads of the diode body 2. After the rotating plate 410 rotates 90 degrees, the bent portions of the leads on both sides of the diode body 2 are directly below the two through holes. The third actuator 415 is then activated, causing the lifting frame 3 to move the diode body 2 upwards until the leads on both sides of the diode body 2 are inserted into the two through holes. The leads of the diode body 2 are then soldered to the circuit board using a soldering system.

Claims

1. A welding positioning device, characterized in that: It includes a workbench and a lifting frame and a supporting gantry frame disposed on the workbench; the lifting frame is equipped with a clamping mechanism for the component body and second lifting seats at both ends; the lifting frame can be raised and lowered on the workbench. The supporting gantry has a first sliding frame and a second sliding frame. The first sliding frame is configured to move left and right in the X direction along a horizontal slide rail of the supporting gantry, and the second sliding frame is configured to move back and forth in the Y direction inside the first sliding frame. The second sliding frame has a clamping structure inside to fix a circuit board with through holes for mounting and soldering component pins. The first sliding frame, in conjunction with the second sliding frame, can drive the circuit board to move in the X and Y directions in a plane. The second lifting seat includes a first clamping plate and a second clamping plate for clamping pins and positioning the bending position; The second lifting seat is equipped with a bending speed adjustment mechanism, which can be adjusted to form different bending speeds for different component pins; The lifting frame drives the first lifting seat and the second lifting seats at both ends of the component body to move up and down. With the movement of the first sliding frame and the second sliding frame, the bending position of the pin connected to the component body can be aligned with the corresponding mounting through hole on the circuit board. After the bending position is determined, the pin is bent upward by the bending mechanism connected to the second lifting seat to achieve accurate bending of the pin position. A first bidirectional lead screw is rotatably mounted on the inner wall of a lifting frame. A first limiting rod is fixedly mounted on the inner wall of the lifting frame. A first lifting seat and two second lifting seats are sleeved between the first bidirectional lead screw and the first limiting rod. The two second lifting seats are respectively threaded onto both ends of the first bidirectional lead screw. The first lifting seat includes a first actuating rod, which is installed on the outer side wall of the first lifting seat. There are two first actuating rods, and a first clamping seat is installed at the output end of the first actuating rod. The first actuating rod can push the first clamping seat inward under the push of the cylinder to clamp the component body. The second lifting seat includes a second actuating rod installed on the outer side wall of the second lifting seat. There are two second actuating rods. An L-shaped plate is installed at the output end of the second actuating rod. A first support frame is fixedly installed on the top of the L-shaped plate. A rotating plate is rotatably installed on the inner wall of the first support frame. A second clamping seat is fixedly installed on the rotating plate. The L-shaped plate is provided with a bending speed adjustment mechanism, which includes a fourth actuating rod. The fourth actuating rod is installed at the bottom of the second lifting seat, and a lifting plate is installed at the output end of the fourth actuating rod. The lifting plate has a first straight slot that runs through the front and back. The rotating plate has a second straight slot that runs through the front and back. A slider is slidably fitted inside the second straight slot. A first lead screw is rotatably installed inside the second straight slot. The slider is threaded onto the surface of the first lead screw. A sliding shaft is fixedly installed on the side of the slider near the central axis of the second lifting seat. The sliding shaft is slidably fitted inside the first straight slot. A second support frame is fixedly installed on the top of the L-shaped plate. A rotating plate is rotatably installed on the side of the second support frame near the first support frame. A second lead screw is rotatably installed on the side of the rotating plate near the first support frame. A first bevel gear is fixedly sleeved on the surface of the first lead screw, and a second bevel gear is fixedly sleeved on the surface of the second lead screw. The first and second bevel gears mesh with each other. A second limiting rod is fixedly installed on the side of the rotating plate near the first support frame. A driving plate is sleeved between the second lead screw and the second limiting rod. An annular groove is formed on the outer surface of the driving plate. A vertically penetrating limiting groove is formed on the L-shaped plate. A driving frame is slidably sleeved inside the limiting groove. The driving plate is rotatably sleeved inside the driving frame.

2. The welding positioning device as described in claim 1, characterized in that: The lifting frame is equipped with a bending position adjustment mechanism, which includes a slide rod. The slide rod is slidably sleeved inside the second clamping seat. A first clamping plate is fixedly installed on the side of the slide rod near the central axis of the lifting frame. A first spring is installed between the slide rod and the second clamping seat.

3. The welding positioning device as described in claim 2, characterized in that: A second spring is installed on the side of the first clamping plate away from the first clamping seat, and a second clamping plate is installed on the other end of the second spring. The cross-sectional shape of the second clamping plate is the same as that of the first clamping plate, and the cross-sectional shape of the first clamping plate is semi-circular.

4. The welding positioning device according to claim 1, characterized in that: Two mounting plates are fixedly installed at the bottom of the L-shaped plate, and a spline sleeve is rotatably installed between the two mounting plates. The surface of the spline sleeve is provided with a threaded groove, and the drive frame is threadedly sleeved on the surface of the spline sleeve. A spline shaft is rotatably installed inside the second lifting seat, and the spline sleeve is slidably sleeved on the surface of the spline shaft.

5. The welding positioning device according to claim 4, characterized in that: A second bidirectional lead screw is fixedly installed on the inner wall of the lifting frame. A threaded sleeve is rotatably installed inside the second lifting seat. The threaded sleeve is threaded onto the surface of the second bidirectional lead screw. A first transmission rod is rotatably installed inside the second lifting seat. A second transmission rod is fixedly sleeved on the surface of the splined shaft. A third bevel gear is fixedly sleeved on the surface of the threaded sleeve. A fourth bevel gear is fixedly sleeved on the surface of the first transmission rod. The third bevel gear and the fourth bevel gear mesh with each other. A rotating wheel is fixedly sleeved between the first transmission rod and the second transmission rod. A transmission belt is sleeved between the first transmission rod and the second transmission rod through the rotating wheel.

6. The welding positioning device according to claim 1, characterized in that: The workbench has a third actuator connected to the lifting frame, which is raised or lowered by the third actuator.

7. The welding positioning device according to claim 1, characterized in that: The supporting gantry frame also has a welding mechanism above it, which welds the component pins on the circuit board.

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