Leakage-proof structure of automobile part spot welding clamp

Abstract

The utility model relates to the technical field of automobile part spot welding, and discloses an anti-leakage structure of an automobile part spot welding clamp, which comprises a base, a motor is fixedly assembled on the side surface of the base, an output shaft of the motor is fixedly sleeved with a right-hand threaded rod, and a left-hand threaded rod is fixedly assembled on the side surface of the right-hand threaded rod. The motor drives the right-hand threaded rod to rotate, then the right-hand threaded rod and the left-hand threaded rod are used for driving the sliding blocks to move in the opposite direction, the sliding blocks are used for driving the placing plate to move in the opposite direction, and therefore the placing plate is used for adjusting according to the size of the automobile part, and then the automobile part is placed on the top of the placing plate. When the top of the contact type sensor is in lap joint with the bottom of the automobile part, the electric telescopic rod drives the toothed plate to move, so that automobile part missing at the top of the placement plate is avoided through meshing of convex teeth on the side face of the toothed plate and convex teeth on the outer edge of the adjusting gear, the toothed plate is used for assisting limiting of the adjusting gear, and then it is guaranteed that the position of the placement plate is limited.

Description

Technical Field

[0001] This utility model relates to the field of spot welding technology for automotive parts, specifically to a leak-proof structure for a spot welding fixture for automotive parts. Background Technology

[0002] Spot welding of automotive parts is a process in which two metal plates are locally heated and melted, and then pressure is applied to recrystallize the molten part, ultimately achieving a firm connection between the metal plates. In order to help automotive parts welding fixtures stabilize and prevent leakage, a leak-proof structure for automotive parts welding fixtures is needed.

[0003] Traditional automotive parts welding fixtures use clamps to hold automotive parts during use, thereby assisting the welding assembly in welding the parts. However, when multiple automotive parts are clamped simultaneously, traditional fixtures are prone to leaving parts inside the fixture, which can affect the stable welding of the parts and the stable processing of the equipment. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a leak-proof structure for a spot welding fixture for automotive parts, thereby solving the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a leak-proof structure for a spot welding fixture for automotive parts, comprising a base, a motor fixedly mounted on the side of the base, a positive threaded rod fixedly sleeved on the output shaft of the motor, a negative threaded rod fixedly mounted on the side of the positive threaded rod, a slider threadedly connected to the outer edge of the positive threaded rod, and the side of the slider slidably connected to the inner wall of the base, a placement plate fixedly mounted on the top of the slider, a contact sensor fixedly mounted on the inner wall of the placement plate, an air supply cylinder fixedly mounted on the top of the placement plate, a connecting pipe fixedly sleeved on the inner wall of the air supply cylinder, an air source distributor fixedly mounted on the side of the connecting pipe, an air inlet pipe fixedly sleeved on the air inlet of the air source distributor, and an air pump fixedly mounted on the side of the air inlet pipe.

[0006] As a preferred embodiment of this utility model, a solenoid valve three-way pipe is fixedly mounted on the top of the air supply cylinder, an arc-shaped pipe is fixedly sleeved at the air outlet of the solenoid valve three-way pipe, and an L-shaped plate is fixedly mounted on the end of the arc-shaped pipe away from the solenoid valve three-way pipe, with the bottom of the L-shaped plate fixedly mounted to the top of the placement plate.

[0007] As a preferred embodiment of this utility model, a sliding cylinder is fixedly mounted on the bottom of the L-shaped plate, a tension spring is fixedly connected to the top of the inner wall of the sliding cylinder, a sliding rod is fixedly connected to the bottom of the tension spring, and a pressure plate is fixedly mounted on the bottom of the sliding rod. The side of the pressure plate is slidably connected to the inner wall of the L-shaped plate.

[0008] As a preferred embodiment of this utility model, a fixing block is fixedly mounted on the side of the base, and an electric telescopic rod is fixedly mounted on the side of the fixing block, and the electric telescopic rod is electrically connected to the contact sensor.

[0009] As a preferred embodiment of this utility model, an adjusting gear is fixedly mounted on the side of the anti-threaded rod, and the side of the adjusting gear is rotatably connected to the side of the base. A toothed plate is fixedly mounted on the side of the electric telescopic rod, and the protruding teeth on the side of the toothed plate mesh with the protruding teeth on the outer edge of the adjusting gear.

[0010] As a preferred technical solution of this utility model, the inner wall of the base is fixedly equipped with limiting rods, the number of limiting rods is four, and the outer edges of the four limiting rods are slidably sleeved with two sliders. The tops of the eight sliders, the tops of the sliders on the outer edges of the positive thread rods and the tops of the sliders on the outer edges of the negative thread rods are all fixedly assembled with the bottom of the placement plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The leak-proof structure of this automotive parts spot welding fixture utilizes the combined use of a motor and a positive threaded rod. The motor drives the positive threaded rod to rotate, which in turn drives the negative threaded rod to rotate. The positive and negative threaded rods then move a slider towards each other, which in turn moves a placement plate towards each other. The placement plate is adjusted according to the size of the automotive parts, and the parts are then placed on top of the placement plate. When the top of the contact sensor overlaps with the bottom of the automotive parts, the electric telescopic rod moves the toothed plate. The side teeth of the toothed plate mesh with the outer edge teeth of the adjusting gear, preventing any automotive parts from being left on the top of the placement plate. The toothed plate also assists in adjusting the gear's limit position, ensuring the placement plate's position is limited.

[0013] 2. The leak-proof structure of this automotive parts spot welding fixture is achieved through the combined use of an air pump and an air intake pipe. The air pump delivers air to the inside of the air source distributor through the air intake pipe, and the air source distributor delivers air to the inside of the air delivery cylinder through the connecting pipe. The air delivery cylinder then delivers air to the arc-shaped pipe through the solenoid valve tee pipe. Finally, the slide rod drives the bottom of the pressure plate to stably clamp and limit the top of the automotive parts. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the orthographic section of the present invention;

[0016] Figure 3 This is a side sectional view of the present invention.

[0017] Figure 4 This is a schematic diagram of the limiting rod structure of this utility model.

[0018] In the diagram: 1. Base; 2. Motor; 3. Positive threaded rod; 4. Negative threaded rod; 5. Slider; 6. Placement plate; 7. Contact sensor; 8. Air supply cylinder; 9. Connecting pipe; 10. Air source distributor; 11. Air inlet pipe; 12. Air inlet pump; 13. Solenoid valve tee pipe; 14. Arc-shaped pipe; 15. L-shaped plate; 16. Tension spring; 17. Slide rod; 18. Pressure plate; 19. Fixing block; 20. Electric telescopic rod; 21. Toothed plate; 22. Adjusting gear; 23. Limiting rod; 24. Slide cylinder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 A leak-proof structure for a spot welding fixture for automotive parts includes a base 1. A motor 2 is fixedly mounted on the side of the base 1. A positive threaded rod 3 is fixedly sleeved on the output shaft of the motor 2. A negative threaded rod 4 is fixedly mounted on the side of the positive threaded rod 3. A slider 5 is threadedly connected to the outer edge of the positive threaded rod 3, and the side of the slider 5 is slidably connected to the inner wall of the base 1. A placement plate 6 is fixedly mounted on the top of the slider 5. A contact sensor 7 is fixedly mounted on the inner wall of the placement plate 6. An air supply cylinder 8 is fixedly mounted on the top of the placement plate 6. A connecting pipe 9 is fixedly sleeved on the inner wall of the air supply cylinder 8. An air source distributor 10 is fixedly mounted on the side of the connecting pipe 9. An air inlet pipe 11 is fixedly connected to the air inlet of the air distributor 10. An air pump 12 is fixedly mounted on the side of the air inlet pipe 11. Through the cooperation of the motor 2 and the positive thread rod 3, the motor 2 drives the positive thread rod 3 to rotate, which in turn drives the negative thread rod 4 to rotate. A slider 5 is threadedly connected to the outer edge of both the positive thread rod 3 and the negative thread rod 4. The positive thread rod 3 and the negative thread rod 4 drive the two sliders 5 to move towards each other. Through the cooperation of the air distributor 10 and the air pump 12, the air pump 12 delivers air to the inside of the air distributor 10, thereby distributing gas to multiple connecting pipes 9 using the air distributor 10.

[0021] In a preferred embodiment, a solenoid valve three-way pipe 13 is fixedly mounted on the top of the air supply cylinder 8. An arc-shaped pipe 14 is fixedly sleeved at the air outlet of the solenoid valve three-way pipe 13. An L-shaped plate 15 is fixedly mounted at the end of the arc-shaped pipe 14 away from the solenoid valve three-way pipe 13, and the bottom of the L-shaped plate 15 is fixedly mounted to the top of the placement plate 6. Through the cooperation of the solenoid valve three-way pipe 13 and the arc-shaped pipe 14, the solenoid valve three-way pipe 13 is used to exhaust air to the outside. The auxiliary tension spring 16 drives the slide rod 17 to slide upward on the inner wall of the slide cylinder 24, and drives the pressure plate 18 to move upward. By closing the exhaust port of the solenoid valve three-way pipe 13 and opening the air supply port inside the solenoid valve three-way pipe 13 and the arc-shaped pipe 14, the slide rod 17 drives the pressure plate 18 to move downward.

[0022] In a preferred embodiment, a slide cylinder 24 is fixedly mounted on the bottom of the L-shaped plate 15. A tension spring 16 is fixedly connected to the top of the inner wall of the slide cylinder 24. A slide rod 17 is fixedly connected to the bottom of the tension spring 16. A pressure plate 18 is fixedly mounted on the bottom of the slide rod 17. The side of the pressure plate 18 is slidably connected to the inner wall of the L-shaped plate 15. Through the cooperation of the slide rod 17 and the slide cylinder 24, the outer edge of the slide rod 17 slides in the inner wall of the slide cylinder 24, thereby driving the pressure plate 18 to move down. Then, the bottom of the pressure plate 18 is used to stably clamp and limit the position of the automotive parts. With the addition of the tension spring 16, the tension spring 16 is used to pull the slide rod 17 up to reset.

[0023] In a preferred embodiment, a fixing block 19 is fixedly mounted on the side of the base 1, and an electric telescopic rod 20 is fixedly mounted on the side of the fixing block 19. The electric telescopic rod 20 is electrically connected to the contact sensor 7. Through the cooperation of the electric telescopic rod 20 and the fixing block 19, the fixing block 19 assists in the stable erection of the electric telescopic rod 20. Then, the electric telescopic rod 20 operates after the tops of multiple contact sensors 7 are in contact with the bottom of the automotive parts, thereby preventing the automotive parts from being missed.

[0024] In a preferred embodiment, an adjusting gear 22 is fixedly mounted on the side of the anti-threaded rod 4, and the side of the adjusting gear 22 is rotatably connected to the side of the base 1. A toothed plate 21 is fixedly mounted on the side of the electric telescopic rod 20, and the protruding teeth on the side of the toothed plate 21 mesh with the protruding teeth on the outer edge of the adjusting gear 22. Through the cooperation of the adjusting gear 22 and the toothed plate 21, the electric telescopic rod 20 drives the toothed plate 21 to move until the protruding teeth on the side of the toothed plate 21 mesh with the protruding teeth on the outer edge of the adjusting gear 22, thereby preventing the adjusting gear 22 from rotating with the anti-threaded rod 4, which would affect the stable clamping and welding of automotive parts.

[0025] In a preferred embodiment, the inner wall of the base 1 is fixedly fitted with four limiting rods 23, and the outer edges of the four limiting rods 23 are slidably sleeved with two sliders 5. The tops of the eight sliders 5, the tops of the sliders 5 on the outer edge of the positive thread rod 3, and the tops of the sliders 5 on the outer edge of the negative thread rod 4 are all fixedly fitted with the bottom of the placement plate 6. By adding the four limiting rods 23, the stability of the movement of the placement plate 6 is assisted, and it is convenient to ensure that multiple automotive parts can be stably clamped and processed simultaneously.

[0026] Working principle: When the device is in use, motor 2 drives the positive threaded rod 3 to rotate, which in turn drives the negative threaded rod 4 to rotate. This, in turn, drives the slider 5 to move towards each other, and the slider 5 drives the placement plate 6 to move towards each other. The placement plate 6 is then adjusted according to the size of the automotive parts. The automotive parts are then placed on top of the placement plate 6. When the top of the contact sensor 7 overlaps with the bottom of the automotive parts, the electric telescopic rod 20 drives the toothed plate 21 to move, thereby utilizing the side convex... The gear meshes with the outer edge of the adjusting gear 22 to prevent the automotive parts from being left out of the top of the placement plate 6. The gear plate 21 assists in the limiting of the adjusting gear 22, thereby ensuring that the position of the placement plate 6 is limited. The air pump 12 delivers air to the inside of the air source distributor 10 through the air intake pipe 11, and delivers air to the inside of the air delivery cylinder 8 through the connecting pipe 9 through the air source distributor 10. The air delivery cylinder 8 delivers air to the arc-shaped pipe 14 through the solenoid valve three-way pipe 13. Then, the slide rod 17 drives the bottom of the pressure plate 18 to stably clamp and limit the top of the automotive parts.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof structure of an automobile component spot welding jig comprising a base (1), characterized in that: The side of the base (1) is fixedly provided with a motor (2), the output shaft of the motor (2) is fixedly sleeved with a right threaded rod (3), the side of the right threaded rod (3) is fixedly provided with a reverse threaded rod (4), the outer edge of the right threaded rod (3) is threadedly connected with a sliding block (5), and the side of the sliding block (5) is slidably connected with the inner wall of the base (1), the top of the sliding block (5) is fixedly provided with a placing plate (6), the inner wall of the placing plate (6) is fixedly provided with a contact sensor (7), the top of the placing plate (6) is fixedly provided with a gas feeding cylinder (8), the inner wall of the gas feeding cylinder (8) is fixedly sleeved with a connecting pipe (9), the side of the connecting pipe (9) is fixedly provided with a gas source distributor (10), the gas inlet of the gas source distributor (10) is fixedly sleeved with an air inlet pipe (11), and the side of the air inlet pipe (11) is fixedly provided with an air inlet pump (12).

2. The leakage-proof structure of a spot welding jig for an automobile part according to claim 1, characterized in that: The top of the gas feeding cylinder (8) is fixedly provided with a solenoid valve tee (13), the gas outlet of the solenoid valve tee (13) is fixedly sleeved with an arc-shaped pipe (14), one end of the arc-shaped pipe (14) away from the solenoid valve tee (13) is fixedly provided with an L-shaped plate (15), and the bottom of the L-shaped plate (15) is fixedly provided with the top of the placing plate (6).

3. The leakage-proof structure of a spot welding jig for an automobile part according to claim 2, characterized in that: The bottom of the L-shaped plate (15) is fixedly provided with a sliding cylinder (24), the top of the inner wall of the sliding cylinder (24) is fixedly connected with a tension spring (16), the bottom of the tension spring (16) is fixedly connected with a sliding rod (17), the bottom of the sliding rod (17) is fixedly provided with a pressing plate (18), and the side of the pressing plate (18) is slidably connected with the inner wall of the L-shaped plate (15).

4. The leakage-proof structure of a spot welding jig for an automobile part according to claim 1, characterized in that: The side of the base (1) is fixedly provided with a fixed block (19), the side of the fixed block (19) is fixedly provided with an electric telescopic rod (20), and the electric telescopic rod (20) is electrically connected with the contact sensor (7).

5. The leakproof structure of a spot welding jig for an automobile part according to claim 4, characterized in that: The side of the reverse threaded rod (4) is fixedly provided with an adjusting gear (22), the side of the adjusting gear (22) is rotatably connected with the side of the base (1), the side of the electric telescopic rod (20) is fixedly provided with a toothed plate (21), and the protrusions on the side of the toothed plate (21) are engaged with the protrusions on the outer edge of the adjusting gear (22).

6. The leakage-proof structure of a spot welding jig for an automobile part according to claim 1, characterized in that: The inner wall of the base (1) is fixedly provided with a limiting rod (23), the number of the limiting rod (23) is four, the outer edges of the four limiting rods (23) are slidably sleeved with two sliding blocks (5), the top of the eight sliding blocks (5) is fixedly provided with the top of the sliding block (5) on the outer edge of the right threaded rod (3) and the top of the sliding block (5) on the outer edge of the reverse threaded rod (4), and the top of the eight sliding blocks (5) is fixedly provided with the bottom of the placing plate (6).

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