A welding device for washing machine controller

Abstract

The present invention belongs to the technical field of washing machine production, and discloses a welding device for a washing machine controller, including a welding device, wherein the bottom end of the welding device is fixedly connected to a bottom frame, the inner cavity of the bottom frame is movably sleeved with a swing bin, the right side of the swing bin is fixedly connected with a ratchet gear, the front side of the bottom frame is movably connected with a ratchet ring, the inner cavity of the ratchet ring has an elastic ratchet, the front side of the ratchet ring is fixedly connected with a three-head conveying roller, and the front side of the bottom frame is fixedly connected with an arc ring. Cold air is slowly blown out to the surface of the material through a slow air outlet pipe, thereby cooling the surface of the material, thereby avoiding the situation where the temperature of the part other than the welding point is high, causing high-temperature deformation of the material, and it is no longer necessary to weld the welding point multiple times in a short time, thereby improving the welding efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of washing machine production, and in particular relates to a welding device for a washing machine controller. Background Art

[0002] A controller is needed to control the washing machine when it is in use. The user presses the function area on the control panel, and the controller triggers the corresponding function. During the production process of the washing machine, a welding device is needed to weld the controller and the control panel so that the washing machine forms a whole. The welding point of the controller and the control panel is heated by the welding device to make them melt, and then welding is performed. However, during the welding process, due to the high temperature, the parts other than the welding point may also be heated and deformed. Therefore, the welding point can only be heated for multiple short times to avoid the high temperature affecting the heat and deformation of the parts other than the welding point. However, this is inefficient and affects the overall production efficiency. Summary of the invention

[0003] The object of the present invention is to provide a welding device for a washing machine controller to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for a washing machine controller, comprising a welding device, wherein the bottom end of the welding device is fixedly connected to a bottom frame, the inner cavity of the bottom frame is movably sleeved with a swing bin, the right side of the swing bin is fixedly connected with a ratchet gear, the front side of the bottom frame is movably connected with a ratchet ring, the inner cavity of the ratchet ring is fixed with elastic ratchets, the front side of the ratchet ring is fixedly connected with a three-head conveying roller, the front side of the bottom frame is fixedly connected with an arc ring, the bottom of the arc ring is fixedly connected with a limiting component, the front side of the bottom frame is fixedly connected with a cooling bin, the top of the cooling bin is fixedly connected with a negative pressure hose, the rear side of the negative pressure hose is fixedly connected with a heat absorption pipe, and the bottom A compression bin is fixedly connected to the right side of the frame, a compression spring is fixedly connected to the inner cavity of the compression bin, a compression plate is fixedly connected to the front side of the compression spring, a ventilation pipe is fixedly connected to the top of the compression bin, a blocking cylinder is fixedly connected to the top of the ventilation pipe, a spring assembly is fixedly connected to the inner cavity of the blocking cylinder, a blocking block is fixedly connected to the top of the spring assembly, a slow air outlet pipe is fixedly connected to the rear side of the blocking cylinder, a piston cylinder is fixedly connected to the right side of the swing bin, a piston rod is movably sleeved on the inner cavity of the piston cylinder, an air outlet pipe is fixedly connected to the right side of the piston cylinder, a metal hose is fixedly connected to the right side of the air outlet pipe, a lifting welding head is provided on the top of the welding device, and a pressing rod is provided on the right side of the lifting welding head.

[0005] Preferably, a servo motor 1 is fixedly connected to the rear side of the bottom frame, the output shaft of the servo motor 1 is fixedly connected to the swing bin, a servo motor 2 is fixedly installed on the rear side of the inner cavity of the swing bin, the output shaft of the servo motor 2 is fixedly sleeved with a ball screw, a moving ring is meshed on the surface of the ball screw, a placement plate is fixedly connected to the top of the moving ring, a servo motor 3 is fixedly connected to the rear side of the placement plate, the output shaft of the servo motor 3 is fixedly connected to a bidirectional threaded rod, and the surface of the bidirectional threaded rod is meshed with a limiting plate.

[0006] Preferably, a heat sink is fixedly mounted on the front side of the cooling chamber, and the portion of the heat absorption tube located in the inner cavity of the compression chamber is S-shaped.

[0007] Preferably, the limiting assembly consists of a limiting rod and a limiting block, the left and right sides of the negative pressure hose are fixedly sleeved in the inner cavity of the limiting block, and the left and right sides of the negative pressure hose are in contact with the limiting rod.

[0008] Preferably, a one-way air outlet valve is fixedly connected to the connection between the piston cylinder and the air outlet pipe, and a one-way air inlet valve is fixedly connected to the bottom end of the piston cylinder.

[0009] Preferably, the compression plate is composed of a circular plate and a guide rod, the compression spring is fixedly connected to the circular plate, a circular hole is provided at the top of the blocking cylinder, and the diameter of the circular hole is equal to the diameter of the bottom end of the pressing rod.

[0010] Preferably, the spring assembly is composed of a damping telescopic rod and a spring, the damping telescopic rod is located at the center of the spring cavity, and the slow air outlet pipe is inclined in the direction of the placement plate.

[0011] Preferably, the movable ring fits with the inner cavity of the swing bin, and the bottom of the limiting plate fits with the inner cavity of the placement plate.

[0012] Preferably, one side of the limiting plate close to the center of the placement plate is a non-slip surface, a support ring is fixedly installed on the right side of the bottom frame, and the compression chamber is fixedly installed in the inner cavity of the support ring.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. The present invention cools down the compressed air in the compression chamber by driving the cooling water flow in the heat absorption pipe and the cooling chamber when the material is turned over. When the lifting welding head is welding the material, the cold air is slowly blown out to the surface of the material through the slow air outlet pipe, thereby cooling down the surface of the material, thereby avoiding the situation where the temperature of the part other than the welding point is high, causing high-temperature deformation of the material, and it is no longer necessary to weld the welding point multiple times in a short time, thereby improving the welding efficiency.

[0015] 2. The present invention enables the lifting welding head to weld a larger range of the material by flipping the angle of the material and moving the position, thereby avoiding the need for manual position adjustment in some difficult-to-weld areas, thereby improving the convenience of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the connection of the cooling chamber structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the piston rod connection of the structure of the present invention;

[0019] Figure 4 For the present invention Figure 3 The connection diagram at A is enlarged;

[0020] Figure 5 This is a schematic diagram of the connection of the one-way air outlet valve structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the connection of three conveying rollers of the structure of the present invention;

[0022] Figure 7 This is a schematic diagram of the ratchet gear connection of the structure of the present invention;

[0023] Figure 8 For the present invention Figure 7 Enlarge the connection diagram at B in the middle.

[0024] In the figure: 1. welding device; 2. bottom frame; 3. swing bin; 4. ratchet gear; 5. ratchet ring; 6. elastic ratchet; 7. three-head conveyor roller; 8. arc ring; 9. limit assembly; 10. cooling bin; 11. negative pressure hose; 12. heat absorption pipe; 13. compression bin; 14. compression spring; 15. compression plate; 16. ventilation pipe; 17. blocking cylinder; 18. spring assembly; 19. blocking block; 20. slow air outlet pipe; 21. piston cylinder; 22. piston rod; 23. one-way air outlet valve; 24. air outlet pipe; 25. one-way air inlet valve; 26. metal hose; 27. pressing rod; 28. servo motor one; 29. ​​servo motor two; 30. ball screw; 31. moving ring; 32. placement plate; 33. servo motor three; 34. two-way threaded rod; 35. limit plate; 36. lifting welding head. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figures 1 to 8 As shown, an embodiment of the present invention provides a welding device for a washing machine controller, including a welding device 1, a bottom end of the welding device 1 is fixedly connected to a bottom frame 2, an inner cavity of the bottom frame 2 is movably sleeved with a swing bin 3, a ratchet gear 4 is fixedly connected to the right side of the swing bin 3, a ratchet ring 5 is movably connected to the front side of the bottom frame 2, an inner cavity of the ratchet ring 5 is fixed with an elastic ratchet 6, a three-head conveying roller 7 is fixedly connected to the front side of the ratchet ring 5, an arc ring 8 is fixedly connected to the front side of the bottom frame 2, a limiting component 9 is fixedly connected to the bottom of the arc ring 8, a cooling bin 10 is fixedly connected to the front side of the bottom frame 2, a negative pressure hose 11 is fixedly connected to the top of the cooling bin 10, a heat absorption pipe 12 is fixedly connected to the rear side of the negative pressure hose 11, and a compression bin 13 is fixedly connected to the right side of the bottom frame 2 The inner cavity of the compression chamber 13 is fixedly connected with a compression spring 14, the front side of the compression spring 14 is fixedly connected with a compression plate 15, the top of the compression chamber 13 is fixedly connected with a ventilation pipe 16, the top of the ventilation pipe 16 is fixedly connected with a blocking cylinder 17, the inner cavity of the blocking cylinder 17 is fixedly connected with a spring assembly 18, the top of the spring assembly 18 is fixedly connected with a blocking block 19, the back side of the blocking cylinder 17 is fixedly connected with a slow air outlet pipe 20, the right side of the swing chamber 3 is fixedly connected with a piston cylinder 21, the inner cavity of the piston cylinder 21 is movably sleeved with a piston rod 22, the right side of the piston cylinder 21 is fixedly connected with an air outlet pipe 24, the right side of the air outlet pipe 24 is fixedly connected with a metal hose 26, the top of the welding device 1 is provided with a lifting welding head 36, and the right side of the lifting welding head 36 is provided with a pressing rod 27;

[0027] The working principle and beneficial effects of the above technical solution are as follows: when the swing bin 3 is flipped to adjust the angle of the material, the ratchet gear 4 is driven to rotate. When the ratchet gear 4 rotates, the elastic design of the elastic ratchet 6 makes the ratchet gear 4 drive the ratchet ring 5 to rotate when it rotates clockwise. The three-head conveying roller 7 rotates through the rotation of the ratchet ring 5, and then the three-head conveying roller 7 squeezes the negative pressure hose 11, so that the cooling water in the inner cavity of the cooling bin 10 is extracted through the negative pressure in the inner cavity of the negative pressure hose 11, and transported to the heat absorption tube 12. When the placement plate 32 moves to adjust the welding position, it drives the piston rod 22 to move in the inner cavity of the piston cylinder 21. Thereby, the air in the inner cavity of the piston cylinder 21 is squeezed, and the squeezed air enters the inner cavity of the compression chamber 13 through the air outlet pipe 24 and the metal hose 26, and then squeezes the compression plate 15 through the elasticity provided by the compression spring 14, and then the air is compressed by the compression plate 15, and the air in the inner cavity of the compression chamber 13 is cooled by the heat absorption tube 12. When the lifting welding head 36 descends to weld the material, it drives the pressing rod 27 to squeeze the blocking block 19, so that the ventilation pipe 16 passes through the blocking cylinder 17 and the inner cavity of the slow air outlet pipe 20, and the compressed air is slowly blown toward the material through the slow air outlet pipe 20.

[0028] like Figure 2 As shown, in one embodiment, a servo motor 1 28 is fixedly connected to the rear side of the bottom frame 2, the output shaft of the servo motor 1 28 is fixedly connected to the swing bin 3, a servo motor 2 29 is fixedly installed on the rear side of the inner cavity of the swing bin 3, the output shaft of the servo motor 29 is fixedly sleeved with a ball screw 30, a moving ring 31 is meshed on the surface of the ball screw 30, a placement plate 32 is fixedly connected to the top of the moving ring 31, a servo motor 3 33 is fixedly connected to the rear side of the placement plate 32, a bidirectional threaded rod 34 is fixedly connected to the output shaft of the servo motor 33, and a limit plate 35 is meshed on the surface of the bidirectional threaded rod 34;

[0029] The working principle and beneficial effects of the above technical solution are as follows: the material is placed on the top of the placement plate 32, and then the bidirectional threaded rod 34 is driven to rotate by the servo motor three 33, and the distance between the two limit plates 35 is adjusted to clamp the material, and then the servo motor one 28 is started to drive the swing bin 3 to flip, thereby driving the angle of the material to change, so that the lifting welding head 36 can weld some corners and recesses, and then the ball screw 30 is driven to rotate by the servo motor two 29, so that the moving ring 31 engaged with it moves along the axial direction of the ball screw 30, thereby driving the material on the top of the placement plate 32 to move, so that the lifting welding head 36 can weld a larger range of materials while moving.

[0030] like Figure 2 As shown, in one embodiment, a heat sink is fixedly mounted on the front side of the cooling chamber 10, and the portion of the heat absorbing pipe 12 located in the inner cavity of the compression chamber 13 is S-shaped;

[0031] The working principle and beneficial effects of the above technical solution are as follows: through the heat sink on the front side of the cooling bin 10, the heat sink can transfer the temperature absorbed by the cooling water in the inner cavity of the cooling bin 10 to the air for cooling, and the part of the heat absorption tube 12 located in the inner cavity of the compression bin 13 is S-shaped, thereby increasing the part of the heat absorption tube 12 in contact with the air, ensuring that the compressed air can be cooled.

[0032] like Figure 4 As shown, in one embodiment, the limiting assembly 9 is composed of a limiting rod and a limiting block, and the left and right sides of the negative pressure hose 11 are fixedly sleeved in the inner cavity of the limiting block, and the left and right sides of the negative pressure hose 11 are in contact with the limiting rod;

[0033] The working principle and beneficial effects of the above technical solution are as follows: through the setting of the limit block and the limit rod, after the negative pressure hose 11 is limited into an arc shape by the arc ring 8, its bottom can also be stably connected to the cooling bin 10 and the heat absorption tube 12, so that the negative pressure hose 11 can form a stable arc.

[0034] like Figure 5 As shown, in one embodiment, a one-way air outlet valve 23 is fixedly connected to the connection between the piston cylinder 21 and the air outlet pipe 24, and a one-way air inlet valve 25 is fixedly connected to the bottom end of the piston cylinder 21;

[0035] The working principle and beneficial effects of the above technical solution are as follows: through the setting of the one-way air outlet valve 23, when the piston rod 22 moves in the inner cavity of the piston cylinder 21 toward the one-way air outlet valve 23, the air can be squeezed into the inner cavity of the air outlet pipe 24 through the one-way air outlet valve 23 and transported to the inner cavity of the compression chamber 13; when the piston rod 22 is away from the one-way air outlet valve 23, air is drawn to the outside through the one-way air inlet valve 25 to replenish the inner cavity of the piston cylinder 21.

[0036] like Figure 3 As shown, in one embodiment, the compression plate 15 is composed of a circular plate and a guide rod, the compression spring 14 is fixedly connected to the circular plate, and a circular hole is opened at the top of the plugging cylinder 17, and the diameter of the circular hole is equal to the diameter of the bottom end of the pressing rod 27;

[0037] The working principle and beneficial effects of the above technical solution are as follows: by setting the circular plate, the compression spring 14 squeezes the circular plate, thereby compressing the air through the circular plate, and then by setting the guide rod, the circular plate will not shift during the process of compressing the air, and the diameter of the circular hole is equal to the diameter of the bottom end of the pressing rod 27, so that the pressing rod 27 can be inserted into the inner cavity of the blocking tube 17 in close contact with the circular hole, thereby preventing the air in the inner cavity of the blocking tube 17 from leaking through the circular hole.

[0038] like Figure 3As shown, in one embodiment, the spring assembly 18 is composed of a damping telescopic rod and a spring, the damping telescopic rod is located at the center of the spring cavity, and the slow air outlet pipe 20 is inclined toward the placement plate 32;

[0039] The working principle and beneficial effects of the above technical solution are as follows: through the setting of the spring, the blocking block 19 is subjected to pressure to support the top of the blocking cylinder 17, and when the lifting welding head 36 is not lowered, the air in the inner cavity of the compression chamber 13 can be blocked, and then the blocking block 19 is positioned and guided by the setting of the damping telescopic rod to prevent the blocking block 19 from shifting during the activity, and then the slow air outlet duct 20 is tilted toward the direction of the placement plate 32, so that the slow air outlet duct 20 can blow cold air toward the material.

[0040] like Figure 2 As shown, in one embodiment, the moving ring 31 fits with the inner cavity of the swing bin 3, and the bottom of the limiting plate 35 fits with the inner cavity of the placement plate 32;

[0041] The working principle and beneficial effects of the above technical solution are as follows: by fitting the moving ring 31 with the inner cavity of the swing bin 3 and the bottom of the limiting plate 35 with the inner cavity of the placing plate 32, the moving ring 31 and the limiting plate 35 can be positioned and guided to avoid displacement of the moving ring 31 and the limiting plate 35 during movement.

[0042] like Figure 2 As shown, in one embodiment, one side of the limit plate 35 close to the center of the placement plate 32 is a non-slip surface, a support ring is fixedly installed on the right side of the bottom frame 2, and the compression chamber 13 is fixedly installed in the inner cavity of the support ring;

[0043] The working principle and beneficial effects of the above technical solution are as follows: the side of the limiting plate 35 close to the center of the placing plate 32 is a non-slip surface, so that when the limiting plate 35 clamps the material, the material will not slip between the limiting plate 35, and the compression bin 13 is supported by the support ring on the right side of the bottom frame 2, so that the inner cavity of the compression bin 13 can compress the air more stably.

[0044] Working principle and use process: Place the material on the top of the placement plate 32, then start the servo motor 33 to drive the bidirectional threaded rod 34 to select, so that the two limit plates 35 move along the axis direction of the bidirectional threaded rod 34 to clamp the material;

[0045] Then, the servo motor 29 is started to drive the ball screw 30 to rotate. The rotation of the ball screw 30 drives the movable ring 31 meshed with it to move, thereby driving the material on the top of the placement plate 32 to move and adjust the position of the welding point. When the placement plate 32 moves, the piston rod 22 is driven to move in the inner cavity of the piston cylinder 21. The air in the inner cavity of the piston cylinder 21 is squeezed by the piston rod 22. The squeezed air is transported to the inner cavity of the compression chamber 13 through the one-way air outlet valve 23 along the air outlet pipe 24 and the metal hose 26 to be compressed and cooled, and the air is drawn into the inner cavity of the piston cylinder 21 through the one-way air inlet valve 25.

[0046] Then, the welding point of the material is welded by descending the lifting welding head 36, and the pressing rod 27 is driven to descend when descending. When the pressing rod 27 descends, it is inserted into the inner cavity of the blocking cylinder 17, contacts the blocking block 19, and squeezes the blocking block 19, so that the blocking block 19 descends. When the blocking block 19 descends, the ventilation pipe 16 passes through the blocking cylinder 17 and the inner cavity of the slow air outlet pipe 20, so that the cold air is slowly blown to the surface of the material through the slow air outlet pipe 20, thereby cooling the surface of the material. After the pressing rod 27 welds one place, it rises, and the tension provided by the spring assembly 18 drives the blocking block 19 to block the top of the blocking cylinder 17, so that the air does not flow. At this time, the placement plate 32 moves to drive the piston rod 22 to move in the inner cavity of the piston cylinder 21, and the air in the inner cavity of the compression chamber 13 is supplemented.

[0047] And in the process of welding, the servo motor 28 is started to drive the swing bin 3 to flip, thereby driving the material on the top of the placement plate 32 to adjust the angle, so that the lifting welding head 36 can weld some corners or recesses of the material. When the swing bin 3 rotates, the ratchet gear 4 is driven to rotate in the inner cavity of the ratchet ring 5. At this time, the ratchet gear 4 is in contact with the elastic ratchet 6, so that when the ratchet gear 4 rotates clockwise, it drives the ratchet ring 5 to rotate. When the ratchet gear 4 rotates counterclockwise, the elasticity of the elastic ratchet 6 prevents the ratchet ring 5 from rotating.

[0048] When the ratchet ring 5 rotates, it drives the three-head conveying roller 7 to rotate. At this time, the three-head conveying roller 7 squeezes and rotates the negative pressure hose 11, so that the inner cavity of the negative pressure hose 11 transports the cooling water in the inner cavity of the negative pressure hose 11 through the negative pressure, and then the inner cavity of the cooling bin 10 is drawn out through the negative pressure hose 11 and transported to the heat absorption tube 12, and then the air in the inner cavity of the compression bin 13 is cooled through the heat absorption tube 12. As the swing bin 3 drives the material to adjust the angle multiple times, the three-head conveying roller 7 continues to rotate, so that the cooling water in the inner cavity of the cooling bin 10, the negative pressure hose 11, and the heat absorption tube 12 flows.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for a washing machine controller, comprising a welding device (1), characterized in that: The bottom end of the welding device (1) is fixedly connected to a bottom frame (2), the inner cavity of the bottom frame (2) is movably sleeved with a swing bin (3), the right side of the swing bin (3) is fixedly connected to a ratchet gear (4), the front side of the bottom frame (2) is movably connected to a ratchet ring (5), the inner cavity of the ratchet ring (5) is fixedly installed with elastic ratchets (6), the front side of the ratchet ring (5) is fixedly connected to three-head conveying rollers (7), the front side of the bottom frame (2) is fixedly connected to an arc ring (8), the bottom of the arc ring (8) is fixedly connected to a limiting assembly (9), the front side of the bottom frame (2) is fixedly connected to a cooling bin (10), the top of the cooling bin (10) is fixedly connected to a negative pressure hose (11), the negative pressure hose (11) is fixedly connected to the cooling bin (10), and the negative pressure hose (11) is fixedly connected to the cooling bin (10). The rear side of the tube (11) is fixedly connected to a heat absorbing tube (12); the right side of the bottom frame (2) is fixedly connected to a compression chamber (13); the inner cavity of the compression chamber (13) is fixedly connected to a compression spring (14); the front side of the compression spring (14) is fixedly connected to a compression plate (15); the top of the compression chamber (13) is fixedly connected to a ventilation pipe (16); the top of the ventilation pipe (16) is fixedly connected to a blocking cylinder (17); the inner cavity of the blocking cylinder (17) is fixedly connected to a spring assembly (18); the top of the spring assembly (18) is fixedly connected to a blocking block (19); the rear side of the blocking cylinder (17) is fixedly connected to a slow air outlet pipe (20); and the right side of the swing chamber (3) is fixedly connected to a piston cylinder. (21), the inner cavity of the piston cylinder (21) is movably sleeved with a piston rod (22), the right side of the piston cylinder (21) is fixedly connected with an air outlet pipe (24), the right side of the air outlet pipe (24) is fixedly connected with a metal hose (26), the top of the welding device (1) is provided with a lifting welding head (36), and the right side of the lifting welding head (36) is provided with a pressing rod (27); the rear side of the bottom frame (2) is fixedly connected with a servo motor 1 (28), the output shaft of the servo motor 1 (28) is fixedly connected to the swing bin (3), the rear side of the inner cavity of the swing bin (3) is fixedly installed with a servo motor 2 (29), the output shaft of the servo motor 2 (29) is fixedly sleeved with a ball screw (30), the ball screw The surface of the lead screw (30) is meshed with a moving ring (31), the top end of the moving ring (31) is fixedly connected to a placement plate (32), the rear side of the placement plate (32) is fixedly connected to a servo motor three (33), the output shaft of the servo motor three (33) is fixedly connected to a bidirectional threaded rod (34), and the surface of the bidirectional threaded rod (34) is meshed with a limit plate (35); the front side of the cooling chamber (10) is fixedly sleeved with a heat sink, and the portion of the heat absorption tube (12) located in the inner cavity of the compression chamber (13) is S-shaped; the limit assembly (9) is composed of a limit rod and a limit block, the left and right sides of the negative pressure hose (11) are fixedly sleeved in the inner cavity of the limit block, and the left and right sides of the negative pressure hose (11) are in contact with the limit rod;A one-way air outlet valve (23) is fixedly connected to the connection between the piston cylinder (21) and the air outlet pipe (24), and a one-way air inlet valve (25) is fixedly connected to the bottom end of the piston cylinder (21); the compression plate (15) is composed of a circular plate and a guide rod, the compression spring (14) is fixedly connected to the circular plate, a circular hole is opened at the top end of the blocking cylinder (17), and the diameter of the circular hole is equal to the diameter of the bottom end of the pressing rod (27); the spring assembly (18) is composed of a damping telescopic rod and a spring, the damping telescopic rod is located at the center of the spring cavity, and the slow air outlet pipe (20) is inclined in the direction of the placement plate (32). ; 2. A welding device for a washing machine controller according to claim 1, characterized in that: The movable ring (31) fits in the inner cavity of the swing bin (3), and the bottom of the limit plate (35) fits in the inner cavity of the placement plate (32).

3. A welding device for a washing machine controller according to claim 2, characterized in that: The side of the limit plate (35) close to the center of the placement plate (32) is an anti-slip surface, a support ring is fixedly mounted on the right side of the bottom frame (2), and the compression chamber (13) is fixedly mounted in the inner cavity of the support ring.

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