A welding fixture for processing electronic throttle and its working method

Abstract

The present invention discloses a welding fixture for processing an electronic throttle valve and a working method thereof, which belongs to the technical field of electronic throttle valve welding, and comprises a working plate and a limiting rod, wherein the lower surface of the working plate is fixedly connected with a support column, and the upper surface of the working plate is bolted with a vertical plate, and the vertical plate is a through structure, and the surface of the vertical plate is bolted with a motor, and the motor is symmetrically distributed about the center of the vertical plate; and further comprises: a lower connecting plate, wherein the lower connecting plate is fixedly connected to the lower surface of the material receiving frame, and the lower connecting plate is located on the left side of the connecting plate, and a knocking rod is slidably arranged inside the lower connecting plate. The welding fixture for processing an electronic throttle valve, when working, places a workpiece on a top block, and after starting the motor, the movable plate and the top block move to the middle position of the vertical plate under the action of the threaded rod and the limiting rod, and finally the top blocks on the left and right sides clamp and fix the workpiece, and the operation process is simple, quick and convenient, and the work efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of electronic throttle valve welding, in particular to a welding fixture for processing an electronic throttle valve and a working method thereof. Background Art

[0002] Electronic throttle valves are widely used in the automotive industry. When they are working, they can control the intake volume of the engine. Compared with traditional throttle valves, electronic throttle valves have the advantages of high precision and rapid response. At the same time, they also optimize the combustion efficiency of fuel, thereby reducing the exhaust gas generated by incomplete combustion of fuel. During the processing of electronic throttle valves, they need to be welded, and at this time, electronic throttle valve welding fixtures are needed;

[0003] For example, a welding fixture with publication number CN109249174B, wherein the welding fixture is used to weld an optical device to a circuit board, comprising: a base, the base having a through hole; an optical device fixing component, the optical device fixing component being used to fix the optical device; and a circuit board fixing component, the circuit board fixing component being used to fix the circuit board, the optical device fixing component and the circuit board fixing component being respectively connected to the base and located on opposite sides of the base, the optical device fixing component being slidably connected to the base, the optical device fixing component being able to clamp the optical device to move toward or away from the circuit board so that the soldering point of the circuit board matches the position of the pin of the optical device, and the soldering point between the optical device and the circuit board is located at the through hole. The welding fixture provided by the welding fixture improves the soldering quality between the optical device and the circuit board;

[0004] There is also a welding fixture with a publication number of CN111906488A, wherein the welding fixture includes a mounting seat, a clamping frame and a switching drive mechanism, wherein the mounting seat has two welding positions corresponding to two welding postures of the workpiece to be welded, respectively, and the clamping frame is used to carry the workpiece to be welded, and the clamping frame is rotatably mounted on the mounting seat along the left-right axis, and the switching drive mechanism has a driving stroke for driving the clamping frame to rotate, wherein the two welding positions are both on the rotation trajectory of the workpiece to be welded on the clamping frame, and the switching drive mechanism drives the clamping frame to rotate, corresponding to the two extreme positions of the driving stroke, and the workpiece to be welded on the clamping frame is respectively corresponding to the two welding positions. This welding fixture drives the clamping frame to rotate through a switching drive mechanism with a driving stroke, thereby completing the posture conversion of the welding fixture;

[0005] And a welding fixture with publication number CN105798517A, which includes a workbench base, a double-sided welding combined clamp connected to the workbench base, a slide rail, a welding operation table for placing weldments, a bracket connected to the workbench base, a front clamp rotating plate and a rear clamp rotating plate connected by a rotating shaft and rotatable around the rotating shaft clockwise or counterclockwise, a slidable clamp located on both sides of the front clamp rotating plate, a sliding groove and a liftable support rod. The present application realizes the automation of welding flipping through the rotation of the double-sided welding combined clamp, reduces the impact of the original welding quality caused by flipping, simplifies the operation of workers, requires only a few manual operations, has low requirements on the proficiency and operating skills of workers, ensures the quality of welding products, and improves the welding efficiency and automation of double-sided welding;

[0006] During the welding process, impurities such as welding slag may be generated. After welding is completed, the staff is required to centrally clean the welding. However, the device in the above application does not have a structure for quickly concentrating and discharging the welding slag during use, which increases the workload of subsequent cleaning staff and brings unnecessary trouble to the staff.

[0007] In view of the above problems, it is urgent to carry out innovative design based on the original electronic throttle welding fixture. Summary of the invention

[0008] The purpose of the present invention is to provide a welding fixture for electronic throttle processing and a working method thereof, so as to solve the problem proposed in the above background technology that during use, the welding slag is not quickly concentrated and discharged, which increases the workload of subsequent staff for cleaning and brings unnecessary trouble to the staff.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding fixture for processing an electronic throttle, comprising a working plate and a limiting rod, wherein the lower surface of the working plate is fixedly connected to a support column, and the upper surface of the working plate is bolted to a vertical plate, and the vertical plate is a through structure, and the surface of the vertical plate is bolted to a motor, and the motor is symmetrically distributed about the center of the vertical plate;

[0010] The limiting rod is fixedly connected to the surface of the vertical plate, and a movable plate is sleeved and connected to the surface of the limiting rod, and the movable plate is symmetrically distributed about the center of the limiting rod, and a top block is fixedly connected to the surface of the movable plate;

[0011] Also includes:

[0012] A connecting shaft, the connecting shaft is rotatably arranged inside the left side of the vertical plate, and the ends of both sides of the connecting shaft are fixedly connected with connecting rods, and the surfaces of the connecting rods are fixedly connected with bumps;

[0013] A material receiving frame, the material receiving frame is arranged inside the vertical plate, and the central axis of the material receiving frame and the central axis of the vertical plate are in a straight line, and an upper connecting block is fixedly connected to the upper surface of the left side of the material receiving frame;

[0014] A threaded rod, the threaded rod being fixedly connected to an output end of the motor;

[0015] A limiting column, wherein the limiting column is fixedly connected to the inner wall of the vertical plate, and a connecting plate is sleeved and connected to the surface of the limiting column, and the connecting plate is fixedly connected to the lower surface of the material receiving frame;

[0016] The lower connecting plate is fixedly connected to the lower surface of the material receiving frame, and the lower connecting plate is located on the left side of the connecting plate, and a knocking rod is slidably arranged inside the lower connecting plate.

[0017] Preferably, the limit rod is an inverted "U" shape when viewed from above, the left and right sides of the threaded rod rotate in opposite directions, the top block is a truncated cone, and the material connection frame is a structure that is wide at the top and narrow at the bottom.

[0018] Preferably, a rack is fixedly connected to the left surface of the movable plate on the left, the connecting shaft passes through the interior of the vertical plate, and a gear meshing with the rack is fixedly connected to the surface of the connecting shaft.

[0019] Preferably, a baffle is fixedly connected to the surface of the connecting shaft, and the baffle limits the horizontal displacement direction of the connecting shaft.

[0020] Preferably, a movable frame is sleeved and connected on the surface of the protrusion, and the movable frame is a hollow structure, and a cross bar is fixedly connected to the right surface of the movable frame, and an upper connecting block is fixedly connected to the end of the cross bar.

[0021] Preferably, the end of the upper limiting column is fixedly connected to a fixing plate, and the surface of the fixing plate is fixedly connected to a first magnet.

[0022] Preferably, the right end of the knocking rod is fixedly connected to a long plate, and the knocking rods are evenly spaced on the surface of the long plate, and the right surface of the long plate is fixedly connected to a second magnet corresponding to the first magnet.

[0023] Preferably, the magnetic poles of the second magnet and the first magnet at adjacent positions are opposite, and an auxiliary plate is fixedly connected to the surface of the knocking rod.

[0024] Preferably, a return spring having an elastic return function is fixedly connected to the surface of the auxiliary plate, and the other side of the return spring is fixedly connected to the surface of the lower connecting plate, and the return spring is initially in a compressed state.

[0025] A working method of a welding fixture for processing an electronic throttle valve comprises the following steps:

[0026] S1: When working, place the workpiece on the top block, then start the motor on the surface of the vertical plate, at this time the motor drives the threaded rod to rotate, and then the movable plate and the top block move to the middle position of the vertical plate under the action of the threaded rod and the limit rod, and finally the top blocks on the left and right sides clamp and fix the workpiece. The operation process is simple, fast and convenient, and the work efficiency is high. The top blocks are set in front and behind the vertical plate, which is convenient for multiple operators to work at the same time, improving the work efficiency. During the welding process, the welding slag will directly fall into the material receiving frame and be discharged from the material receiving frame. The material receiving frame plays a role in limiting the falling position of the welding slag, so that the operator can quickly collect and clean the welding after the welding is completed, thereby improving the work efficiency.

[0027] S2: After welding is completed, the motor drives the threaded rod to rotate. When the threaded rod rotates, the movable plate and the top block move back. At this time, the top block can be removed. When the movable plate moves back, it drives the connecting shaft to rotate inside the vertical plate through the rack and gear, and the baffle makes the rotation of the connecting shaft more stable. When the connecting shaft rotates, it drives the connecting rod and the protrusion to rotate synchronously. At this time, the movable frame, the cross bar, the upper connecting block, the connecting plate and the limiting column drive the material receiving frame to do reciprocating linear motion in the horizontal direction, and then the material receiving frame is in a shaking state, which will be better for material discharge and improve the efficiency of discharging welding slag;

[0028] S3: When the material receiving frame moves in the horizontal direction, it will drive the lower connecting plate and the connecting plate to move synchronously, and the connecting plate slides on the limiting column, that is, the connecting plate and the material receiving frame only move in the horizontal direction, and when the lower connecting plate moves to the left, the long plate will move away from the fixed plate at the end of the limiting column, that is, the second magnet will move away from the first magnet, and the magnetic poles of the second magnet and the first magnet at adjacent positions are opposite, so that the magnetic force of mutual attraction on the long plate is reduced. At this time, the knocking rod moves toward the material receiving frame under the action of the auxiliary plate and the reset spring, and finally the knocking rod will hit the outer wall of the material receiving frame, and when the lower connecting plate moves to the right, the long plate and the knocking rod move to the right again under the action of the magnetic force of mutual attraction. At this time, the knocking rod does not contact the material receiving frame, and then when the material receiving frame and the lower connecting plate make reciprocating linear motion, the knocking rod also makes reciprocating linear motion inside the lower connecting plate, that is, the knocking rod will intermittently hit the material receiving frame, so that the material receiving frame can unload better, thereby improving work efficiency.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: the welding fixture for processing the electronic throttle valve and the working method thereof adopt a new structural design, and the top blocks on the left and right sides can quickly clamp the workpiece through the motor, the threaded rod and the limit rod. During the welding process, the welding slag will fall into the material receiving frame, and the falling position of the welding slag will be limited by the material receiving frame. After the welding is completed, when the motor drives the threaded rod to rotate, the material receiving frame is in a shaking state, which is convenient for the welding slag remaining on the inner wall of the material receiving frame to fall, and the effect of welding slag removal is optimized. The specific contents are as follows:

[0030] When the welding fixture for processing the electronic throttle is in operation, the workpiece is placed on the top block. After the motor is started, the movable plate and the top block move to the middle position of the vertical plate under the action of the threaded rod and the limit rod. Finally, the top blocks on the left and right sides clamp and fix the workpiece. The operation process is simple, fast and convenient, and the work efficiency is high.

[0031] Furthermore, the top blocks are arranged in front and behind the vertical plate, which facilitates multiple operators to work at the same time and improves work efficiency;

[0032] (2) In the welding fixture for processing the electronic throttle valve, during the welding process, the welding slag will fall into the material receiving frame and be discharged, that is, the material receiving frame limits the falling position of the welding slag, which is convenient for the operator to collect and clean the welding. When the motor drives the threaded rod to rotate and the movable plate moves back, the movable plate drives the connecting shaft, the connecting rod and the protrusion to rotate through the rack and the gear. When the protrusion rotates, it cooperates with the movable frame, the limit column and the connecting plate to make the material receiving frame perform reciprocating linear motion in the horizontal direction. At this time, the material receiving frame is in a shaking state, which is convenient for the welding slag on its inner wall to be discharged;

[0033] (3) In the welding fixture for processing the electronic throttle valve, during the movement of the material receiving frame, the first magnet will intermittently approach the second magnet, and then the long plate and the knocking rod will make reciprocating linear motion in the horizontal direction under the action of the repulsive magnetic force and the reset spring. At this time, the knocking rod will intermittently hit the outer wall of the material receiving frame, so that the material receiving frame is in a vibrating state, making it easier for the welding slag to fall, making it easier for the operator to clean the welding slag, and improving work efficiency;

[0034] Furthermore, the equally spaced striking rods optimize the striking effect, thereby optimizing the slag discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the connection structure between the working plate and the vertical plate of the present invention;

[0036] Figure 2 This is a schematic diagram of the connection structure between the riser and the motor of the present invention;

[0037] Figure 3 This is a schematic diagram of the connection structure between the motor and the threaded rod of the present invention;

[0038] Figure 4 It is a schematic diagram of the connection structure between the movable plate and the top block of the present invention;

[0039] Figure 5 It is a schematic diagram of the meshing structure of the rack and the gear of the present invention;

[0040] Figure 6 It is a schematic diagram of the connection structure between the cross bar and the upper connecting block of the present invention;

[0041] Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle;

[0042] Figure 8 This is a schematic diagram of the distribution state of the knocking rod of the present invention;

[0043] Fig. 9 It is a schematic diagram of the structure of the connecting rod in the working state of the present invention.

[0044] In the figure: 1. working plate; 2. vertical plate; 3. motor; 4. limiting rod; 5. movable plate; 6. top block; 7. rack; 8. connecting shaft; 9. gear; 10. baffle; 11. material receiving frame; 12. connecting rod; 13. protrusion; 14. movable frame; 15. cross bar; 16. upper connecting block; 17. threaded rod; 18. limiting column; 19. lower connecting plate; 20. connecting plate; 21. fixed plate; 22. first magnet; 23. long plate; 24. knocking rod; 25. auxiliary plate; 26. reset spring; 27. second magnet. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Example 1: Please refer to Figure 1-Figure 9 The present invention provides the following technical solutions: a welding fixture for processing an electronic throttle, comprising a working plate 1 and a limiting rod 4, the lower surface of the working plate 1 is fixedly connected with a supporting column, and the upper surface of the working plate 1 is bolted with a vertical plate 2, and the vertical plate 2 is a through structure, and the surface of the vertical plate 2 is bolted with a motor 3, and the motor 3 is symmetrically distributed about the center of the vertical plate 2;

[0047] The limiting rod 4 is fixedly connected to the surface of the vertical plate 2, and the surface of the limiting rod 4 is sleeved with a movable plate 5, and the movable plate 5 is symmetrically distributed about the center of the limiting rod 4, and the surface of the movable plate 5 is fixedly connected with a top block 6;

[0048] Also includes:

[0049] A connecting shaft 8, the connecting shaft 8 is rotatably arranged inside the left side of the vertical plate 2, and the ends of both sides of the connecting shaft 8 are fixedly connected with connecting rods 12, and the surface of the connecting rods 12 is fixedly connected with a protrusion 13, a material receiving frame 11, the material receiving frame 11 is arranged inside the vertical plate 2, and the central axis of the material receiving frame 11 and the central axis of the vertical plate 2 are in a straight line, and the upper surface of the left side of the material receiving frame 11 is fixedly connected with an upper connecting block 16;

[0050] The threaded rod 17 is fixedly connected to the output end of the motor 3, and the limiting column 18 is fixedly connected to the inner wall of the vertical plate 2, and the surface of the limiting column 18 is sleeved with a connecting plate 20, and the connecting plate 20 is fixedly connected to the lower surface of the material receiving frame 11;

[0051] The lower connecting plate 19 is fixedly connected to the lower surface of the material receiving frame 11, and the lower connecting plate 19 is located on the left side of the connecting plate 20, and a knocking rod 24 is slidably arranged inside the lower connecting plate 19. The limit rod 4 is an inverted "U" shape when viewed from above, the left and right sides of the threaded rod 17 rotate in opposite directions, the top block 6 is a truncated cone, and the material receiving frame 11 is a structure that is wide at the top and narrow at the bottom.

[0052] During work, the workpiece is placed on the top block 6, and then the motor 3 on the surface of the vertical plate 2 is started. At this time, the motor 3 drives the threaded rod 17 to rotate, and then the movable plate 5 and the top block 6 move to the middle position of the vertical plate 2 under the action of the threaded rod 17 and the limit rod 4. Finally, the top blocks 6 on the left and right sides clamp and fix the workpiece. The operation process is simple, fast and convenient, and the work efficiency is high. The top blocks 6 are arranged in front and behind the vertical plate 2, which is convenient for multiple operators to work at the same time, thereby improving work efficiency. During the welding process, the welding slag will directly fall into the material receiving frame 11 and be discharged from the material receiving frame 11. The material receiving frame 11 plays a role in limiting the falling position of the welding slag, so that the operator can quickly collect and clean the welding after the welding is completed, thereby improving work efficiency.

[0053] Embodiment 2: Different from Embodiment 1, the reciprocating mechanism can make the material receiving frame 11 discharge welding slag better. Figure 4 and Figure 5 As shown:

[0054] A rack 7 is fixedly connected to the left surface of the left movable plate 5, a connecting shaft 8 passes through the interior of the vertical plate 2, and a gear 9 meshing with the rack 7 is fixedly connected to the surface of the connecting shaft 8, a baffle 10 is fixedly connected to the surface of the connecting shaft 8, and the baffle 10 limits the horizontal displacement direction of the connecting shaft 8.

[0055] The surface of the protrusion 13 is sleeved with a movable frame 14 , and the movable frame 14 is a hollow structure. The right surface of the movable frame 14 is fixedly connected with a cross bar 15 , and the end of the cross bar 15 is fixedly connected with an upper connecting block 16 .

[0056] After welding is completed, the motor 3 drives the threaded rod 17 to rotate. When the threaded rod 17 rotates, the movable plate 5 and the top block 6 move back. At this time, the top block 6 can be removed. When the movable plate 5 moves back, it will drive the connecting shaft 8 to rotate inside the vertical plate 2 through the rack 7 and the gear 9, and the baffle 10 makes the rotation of the connecting shaft 8 more stable. When the connecting shaft 8 rotates, it drives the connecting rod 12 and the protrusion 13 to rotate synchronously. At this time, the movable frame 14, under the action of the cross bar 15, the upper connecting block 16, the connecting plate 20 and the limiting column 18, drives the material receiving frame 11 to make reciprocating linear motion in the horizontal direction, so that the material receiving frame 11 is in a shaking state, which will better unload the material and improve the efficiency of discharging the welding slag.

[0057] Embodiment 3: Different from Embodiment 2, the knocking rod 24 is provided to repeatedly strike the outer wall of the receiving frame 11, thereby making the receiving frame 11 in a vibrating state, thereby optimizing the effect of unloading. Figure 6-Figure 9 As shown:

[0058] The end of the upper limit column 18 is fixedly connected to a fixed plate 21, and the surface of the fixed plate 21 is fixedly connected to a first magnet 22, the right end of the knocking rod 24 is fixedly connected to a long plate 23, and the knocking rods 24 are evenly spaced on the surface of the long plate 23, and the right surface of the long plate 23 is fixedly connected to a second magnet 27 corresponding to the first magnet 22.

[0059] The magnetic poles of the second magnet 27 and the adjacent position of the first magnet 22 are opposite, and the surface of the knocking rod 24 is fixedly connected to an auxiliary plate 25, and the surface of the auxiliary plate 25 is fixedly connected to a reset spring 26 which plays an elastic reset role, and the other side of the reset spring 26 is fixedly connected to the surface of the lower connecting plate 19, and the reset spring 26 is initially in a compressed state.

[0060] When the material receiving frame 11 moves in the horizontal direction, it will drive the lower connecting plate 19 and the connecting plate 20 to move synchronously, and the connecting plate 20 will slide on the limiting column 18, that is, the connecting plate 20 and the material receiving frame 11 only move in the horizontal direction, and when the lower connecting plate 19 moves to the left, the long plate 23 will move away from the fixed plate 21 at the end of the limiting column 18, that is, the second magnet 27 will move away from the first magnet 22, and the magnetic poles of the second magnet 27 and the first magnet 22 at adjacent positions are opposite, so that the magnetic force of mutual attraction on the long plate 23 is reduced, and at this time, the knocking rod 24 is between the auxiliary plate 25 and the reset plate 24. Under the action of the spring 26, it moves toward the material receiving frame 11, and finally the knocking rod 24 will hit the outer wall of the material receiving frame 11. When the lower connecting plate 19 moves to the right, the long plate 23 and the knocking rod 24 move to the right again under the action of the mutual magnetic force. At this time, the knocking rod 24 does not contact the material receiving frame 11. Then, when the material receiving frame 11 and the lower connecting plate 19 make reciprocating linear motion, the knocking rod 24 also makes reciprocating linear motion inside the lower connecting plate 19, that is, the knocking rod 24 will intermittently hit the material receiving frame 11, so that the material receiving frame 11 can unload materials better, thereby improving work efficiency.

[0061] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

Claims

1. A welding fixture for processing an electronic throttle, comprising a working plate (1) and a limiting rod (4), wherein the lower surface of the working plate (1) is fixedly connected to a support column, and the upper surface of the working plate (1) is bolted to a vertical plate (2), and the vertical plate (2) is a through structure, and the surface of the vertical plate (2) is bolted to a motor (3), and the motor (3) is symmetrically distributed about the center of the vertical plate (2); The limiting rod (4) is fixedly connected to the surface of the vertical plate (2), and a movable plate (5) is sleeved and connected to the surface of the limiting rod (4), and the movable plate (5) is symmetrically distributed about the center of the limiting rod (4), and a top block (6) is fixedly connected to the surface of the movable plate (5); It is characterized in that Also includes: A connecting shaft (8), the connecting shaft (8) being rotatably arranged inside the left side of the vertical plate (2), and the ends of both sides of the connecting shaft (8) are fixedly connected to connecting rods (12), and the surfaces of the connecting rods (12) are fixedly connected to protrusions (13); A material receiving frame (11), the material receiving frame (11) being arranged inside the vertical plate (2), with the central axis of the material receiving frame (11) and the central axis of the vertical plate (2) being in a straight line, and an upper connecting block (16) being fixedly connected to the upper surface of the left side of the material receiving frame (11); A threaded rod (17), the threaded rod (17) being fixedly connected to an output end of the motor (3); A limiting column (18), the limiting column (18) being fixedly connected to the inner wall of the vertical plate (2), and a connecting plate (20) being sleeved and connected to the surface of the limiting column (18), and the connecting plate (20) being fixedly connected to the lower surface of the material receiving frame (11); A lower connecting plate (19), the lower connecting plate (19) being fixedly connected to the lower surface of the material receiving frame (11), the lower connecting plate (19) being located on the left side of the connecting plate (20), and a knocking rod (24) being slidably provided inside the lower connecting plate (19); The limiting rod (4) is an inverted "U" shape when viewed from above, the left and right sides of the threaded rod (17) rotate in opposite directions, the top block (6) is a truncated cone, and the material receiving frame (11) is a structure that is wide at the top and narrow at the bottom; A rack (7) is fixedly connected to the left surface of the movable plate (5) on the left side, the connecting shaft (8) passes through the interior of the vertical plate (2), and a gear (9) meshing with the rack (7) is fixedly connected to the surface of the connecting shaft (8); The surface of the protrusion (13) is sleeved and connected with a movable frame (14), and the movable frame (14) is a hollow structure, and the right side surface of the movable frame (14) is fixedly connected with a cross bar (15), and the end of the cross bar (15) is fixedly connected with an upper connecting block (16); The end of the upper limiting column (18) is fixedly connected to a fixing plate (21), and the surface of the fixing plate (21) is fixedly connected to a first magnet (22); The right end of the knocking rod (24) is fixedly connected to a long plate (23), and the knocking rods (24) are evenly spaced on the surface of the long plate (23), and a second magnet (27) corresponding to the first magnet (22) is fixedly connected to the right surface of the long plate (23); The magnetic poles of the second magnet (27) and the first magnet (22) are opposite to each other at adjacent positions, and an auxiliary plate (25) is fixedly connected to the surface of the knocking rod (24); A return spring (26) having an elastic return function is fixedly connected to the surface of the auxiliary plate (25), and the other side of the return spring (26) is fixedly connected to the surface of the lower connecting plate (19), and the return spring (26) is initially in a compressed state.

2. The welding fixture for processing an electronic throttle valve according to claim 1, characterized in that: A baffle (10) is fixedly connected to the surface of the connecting shaft (8), and the baffle (10) limits the horizontal displacement direction of the connecting shaft (8).

3. The working method of the welding fixture for processing an electronic throttle valve according to claim 2, characterized in that: The following steps are involved: S1: During operation, the workpiece is placed on the top block (6), and then the motor (3) on the surface of the vertical plate (2) is started. At this time, the motor (3) drives the threaded rod (17) to rotate, and then the movable plate (5) and the top block (6) are moved to the middle position of the vertical plate (2) under the action of the threaded rod (17) and the limit rod (4). Finally, the top blocks (6) on the left and right sides clamp and fix the workpiece. The operation process is simple, fast and convenient, and the work efficiency is high. The top blocks (6) are arranged at the front and back of the vertical plate (2), which is convenient for multiple operators to work at the same time, thereby improving the work efficiency. During the welding process, the welding slag will directly fall into the material receiving frame (11) and be discharged from the material receiving frame (11). The material receiving frame (11) plays a role in limiting the falling position of the welding slag, so that the operator can quickly collect and clean the welding after the welding is completed, thereby improving the work efficiency. S2: After welding is completed, the motor (3) drives the threaded rod (17) to rotate. When the threaded rod (17) rotates, the movable plate (5) and the top block (6) move back. At this time, the top block (6) can be removed. When the movable plate (5) moves back, it drives the connecting shaft (8) to rotate inside the vertical plate (2) through the rack (7) and the gear (9). The baffle (10) makes the rotation of the connecting shaft (8) more stable. When the connecting shaft (8) rotates, it drives the connecting rod (12) and the protrusion (13) to rotate synchronously. At this time, the movable frame (14) and the cross bar (15), the upper connecting block (16), the connecting plate (20) and the limiting column (18) drive the material receiving frame (11) to perform reciprocating linear motion in the horizontal direction, so that the material receiving frame (11) is in a shaking state, which can better discharge the material and improve the efficiency of discharging the welding slag. S3: When the material receiving frame (11) moves in the horizontal direction, it will drive the lower connecting plate (19) and the connecting plate (20) to move synchronously, and the connecting plate (20) will slide on the limiting column (18), that is, the connecting plate (20) and the material receiving frame (11) only move in the horizontal direction, and when the lower connecting plate (19) moves to the left, the long plate (23) will move away from the fixed plate (21) at the end of the limiting column (18), that is, the second magnet (27) will move away from the first magnet (22), and the magnetic poles of the second magnet (27) and the first magnet (22) at adjacent positions are opposite, so that the magnetic force of mutual attraction on the long plate (23) is reduced, and at this time the knocking rod (24) is on the auxiliary plate (25). Under the action of the return spring (26), the long plate (23) and the knocking rod (24) move toward the material receiving frame (11), and finally the knocking rod (24) hits the outer wall of the material receiving frame (11). When the lower connecting plate (19) moves to the right, the long plate (23) and the knocking rod (24) move to the right again under the action of the mutual magnetic force. At this time, the knocking rod (24) does not contact the material receiving frame (11). Then, when the material receiving frame (11) and the lower connecting plate (19) make reciprocating linear motion, the knocking rod (24) also makes reciprocating linear motion inside the lower connecting plate (19), that is, the knocking rod (24) intermittently hits the material receiving frame (11), so that the material receiving frame (11) can be better unloaded, thereby improving work efficiency.

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