Welding device provided with clamping mechanism and used for bullet train heater production and using method of welding device

Abstract

The invention discloses a welding device provided with a clamping mechanism and used for bullet train heater production and a using method of the welding device, and belongs to the technical field of bullet train heater welding. The welding device comprises a working plate, the upper surface of the working plate is in bolted connection with a mechanical arm, the tail end of the mechanical arm is provided with a welding head, and the lower surface of the working plate is in bolted connection with a motor; the output end of the motor is fixedly connected with a threaded rod, the surface of the threaded rod is in threaded connection with a sliding plate, and the surface of the sliding plate is fixedly connected with a clamping plate. According to the welding device with the clamping mechanism for bullet train heater production, in the using process, when a workpiece needs to be clamped, the workpiece is placed on a working plate, then a motor is started, the motor drives a threaded rod to rotate, then the threaded rod is matched with a limiting rod, and a sliding plate and a clamping plate move towards the middle position of the working plate; and finally, the workpiece is clamped and fixed through the clamping plates symmetrically distributed on the two sides, the operation process is simple and rapid, and bullet train heaters of different sizes can be rapidly clamped.

Description

Technical Field

[0001] The present invention relates to the technical field of motor vehicle heater welding, in particular to a welding device for motor vehicle heater production with a clamping mechanism and a use method thereof. Background Art

[0002] In cold weather, some parts of the train, such as water tanks, pipes, and brake systems, are prone to freezing due to low temperatures. The train heater can heat these parts to keep their temperature within a certain range, prevent water from freezing and expanding, and cause parts to rupture, thereby ensuring the normal operation of each system. During the production process of the train heater, it is necessary to weld the heater shell, and a welding device is required. During the welding process, the sizes of the train heaters are different. If the welding device cannot weld train heaters of different sizes, it will affect the operation of the staff and increase the difficulty of the staff's work. In order to overcome the above defects, prior art 1 (Chinese patent application with application number 201811606045.8 and application date 2018-12-27) provides a heater fixing frame welding device, which, when working, The positioning and clamping device positions and clamps the welded volute, uses the lower electrode assembly to cooperate with welding, and uses the clamp assembly to position and clamp the welded volute. It does not require manual holding at all, and can also clamp workpieces of different sizes. There is also prior art 2 (Chinese patent application with application number 202210872218.0 and application date 2022-07-23) A heater connector automatic welding device, which, when working, sets a welding manipulator and uses the welding manipulator for welding, can effectively improve welding efficiency and ensure the welding quality of the heater connector; by setting an expansion sleeve, by tightening the locking nut, the tightening force drives the extrusion plate to push the expansion sleeve to expand the expansion sleeve, and the expansion of the expansion sleeve can achieve the fixation of the heater connector, and can also clamp workpieces of different sizes.

[0003] When the device is used for welding, a large amount of smoke will be generated. The smoke will affect the working environment and reduce the air quality. The welding device in the above application does not have a structure for auxiliary treatment of smoke during use, which has a negative impact on the health of the workers. At the same time, a large amount of welding slag will be generated during the welding process. The welding device in the above application does not have a structure for auxiliary collection of welding slag during use. As a result, after welding, the workers have to spend more time cleaning the welding slag, which reduces the work efficiency of the workers and brings unnecessary trouble to the workers' operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device for the production of motor vehicle heaters with a clamping mechanism and a method for using the same, so as to solve the problems proposed in the above background technology that during use, there is no structure for auxiliary treatment of smoke, which has a negative impact on the health of the workers, and there is no structure for auxiliary collection of welding slag, and then after welding, the workers have to spend more time cleaning the welding slag, which reduces the work efficiency of the workers and brings unnecessary trouble to the workers' operation.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A welding device for producing motor vehicle heaters with a clamping mechanism, comprising a working plate, the upper surface of the working plate is bolted to a robotic arm, and a welding head is provided at the end of the robotic arm, and the lower surface of the working plate is bolted to a motor; the output end of the motor is fixedly connected to a threaded rod, and the surface of the threaded rod is threadedly connected to a slide, and the surface of the slide is fixedly connected to a clamping plate; the upper surface of the working plate is fixedly connected to an upper connecting block, and the upper connecting block is connected to a dust collection plate through a swinging mechanism; the lower surface of the working plate is fixedly connected to a guide plate, and the guide plate is connected to an auxiliary frame through a reciprocating mechanism, and the lower surface of the working plate is fixedly connected to a lower connecting plate; the surface of the lower connecting plate is bonded with an airbag, and the surface of the airbag is fixedly connected to an air outlet pipe.

[0006] Preferably, the slides are symmetrically distributed on both sides of the working plate, and a limiting rod is fixedly connected to the inner wall of the working plate, and the surface of the limiting rod is sleeved with the slides, and the spiral rotation directions of the two sides of the threaded rod are opposite.

[0007] Preferably, the upper surface of the working plate is fixedly connected to a fixed block, and a connecting shaft is rotatably provided inside the fixed block, and a traction rope is wrapped and fixedly connected to the surface of the connecting shaft, and a torsion spring is fixedly connected to the surface of the connecting shaft, and the other side of the torsion spring is fixedly connected to the inner wall of the fixed block.

[0008] Preferably, the other side of the traction rope is fixedly connected to the outer wall of the clamping plate, the end of the connecting shaft is fixedly connected to a circular plate, and the surface of the circular plate is fixedly connected to a protrusion, and the surface of the protrusion is sleeved with a movable frame, the upper surface of the working plate is fixedly connected to a limiting block, and the side of the movable frame is fixedly connected to a long pin, and the long pin passes through the interior of the limiting block.

[0009] Preferably, the swing mechanism includes a long rod rotatably arranged inside the upper connecting block, and the end of the long rod is fixedly connected to a gear, and the lower surface of the long pin is fixedly connected to a tooth block meshing with the gear at equal intervals.

[0010] Preferably, dust suction ports are arranged at equal intervals on the surface of the dust suction disc, and the dust suction disc is connected to the input end of the external flue gas treatment device through an external hose.

[0011] Preferably, the reciprocating mechanism includes a return spring fixedly connected to the inner wall of the guide plate, and the other side of the return spring is fixedly connected to the surface of the auxiliary frame, and the auxiliary frame is sleeved and connected to the surface of the guide plate, and the surface of the auxiliary frame is fixedly connected to a force block.

[0012] Preferably, a push rod is fixedly connected to the lower surface of the long pin, and the push rod is an inverted "L" structure when viewed from the left, and the end of the push rod is in contact with the surface of the force block, and the surface of the force block is inclined, the guide plate is "U"-shaped when viewed from the front, and a damping rod is provided between the guide plate and the auxiliary frame, and both sides of the auxiliary frame are convex, and the auxiliary frame is inclined.

[0013] Preferably, the surface of the airbag fits with the surface of the auxiliary frame, and the airbag is initially in a squeezed state, and an air inlet pipe is fixedly connected to the lower surface of the airbag, the air outlet pipes are evenly spaced on the surface of the airbag, and the surfaces of the air outlet pipes and the air inlet pipes are both provided with one-way valves, and a guide plate is fixedly connected to the inner wall of the auxiliary frame, and the surface of the guide plate is arc-shaped.

[0014] A method for using a welding device for producing a motor vehicle heater having a clamping mechanism comprises the following steps: S1. During operation, the workpiece to be processed is placed on the work plate. After the motor is started, the slide, under the action of the threaded rod and the limit rod, drives the clamping plate to move to the middle position of the work plate, and finally the clamping plates on both sides clamp and fix the workpiece; S2. During the movement of the clamping plate, the clamping plate drives the connecting shaft to rotate through the traction rope. At this time, the circular plate and the protrusion rotate synchronously, and then the long pin and the movable frame move synchronously. The long pin, the movable frame and the limit block work together to make the long pin and the movable frame do reciprocating linear motion in the horizontal direction. Then, the long rod drives the dust collector to swing back and forth under the action of the tooth block and the gear. At this time, the dust collector absorbs the smoke in a wider range. S3. When the long pin moves, it will intermittently push the force block through the push rod. At this time, the force block and the auxiliary frame make reciprocating linear motion in the horizontal direction under the action of thrust, elastic force and guide plate. At this time, the efficiency of the auxiliary frame in discharging debris is improved; S4. When the auxiliary frame moves, it will intermittently squeeze the airbag, and the airbag will intermittently eject air through the outlet pipe to quickly cool the debris.

[0015] Compared with the prior art, the present invention has the following beneficial effects: it adopts a new structural design, and can quickly clamp workpieces of different sizes through the motor and clamping plate. At the same time, it is provided with a swingable dust suction disk, which can absorb smoke at multiple angles. It is also provided with a swingable auxiliary frame, which can quickly concentrate and discharge welding slag, making it easier for workers to collect it. In addition, it is provided with an air bag and an air outlet pipe, which can quickly cool the debris and prevent the debris from sticking to the auxiliary frame. At the same time, the air flow also has an auxiliary blowing effect, so that the debris is quickly discharged. The specific contents are as follows: The welding device for producing train heaters with a clamping mechanism is used. When a workpiece needs to be clamped, the workpiece is placed on a work plate, and then the motor is started. The motor drives the threaded rod to rotate, and then the threaded rod cooperates with the limit rod to move the slide plate and the clamping plate toward the middle position of the work plate. Finally, the clamping plates symmetrically distributed on both sides clamp and fix the workpiece. The operation process is simple and fast, and train heaters of different sizes can be quickly clamped.

[0016] The welding device for producing motor vehicle heaters with a clamping mechanism has the following characteristics: during the movement of the clamping plate, the clamping plate drives the connecting shaft to rotate through the traction rope, at which time the circular plate and the protrusion rotate synchronously, and then the long pin and the movable frame move synchronously, and the long pin, the movable frame and the limit block work together to make the long pin and the movable frame perform reciprocating linear motion in the horizontal direction, and then the long rod drives the dust suction disk to swing back and forth under the action of the tooth block and the gear, and at this time the dust suction disk absorbs the smoke in a wider range, which can better handle the smoke generated during the welding process.

[0017] This welding device for producing motor vehicle heaters with a clamping mechanism will intermittently push the force block through the push rod when the long pin moves. At this time, the force block and the auxiliary frame will perform reciprocating linear motion in the horizontal direction under the action of thrust, elastic force and guide plate. At this time, the efficiency of the auxiliary frame in discharging debris is increased.

[0018] Furthermore, the auxiliary frame is tilted and both sides of the auxiliary frame are convex, so that the auxiliary frame can unload materials faster and discharge debris quickly, while the guide plate prevents sticky residue from contacting the outlet pipe.

[0019] (4) The welding device for producing motor vehicle heaters with a clamping mechanism will intermittently squeeze the airbag when the auxiliary frame moves. At this time, the airbag will intermittently spray air through the air outlet pipe to quickly cool the debris so that the debris will not stick to the auxiliary frame. At the same time, the air flow also has an auxiliary blowing effect, so that the debris can be quickly discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the working board of the present invention; Figure 2 This is a schematic diagram of the connection structure between the motor and the threaded rod of the present invention; Figure 3 This is a schematic diagram of the connection structure of the connecting shaft and the torsion spring of the present invention; Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram; Figure 5 This is a schematic diagram of the connection structure between the long pin and the gear block of the present invention; Figure 6 For the present invention Figure 1 The enlarged structural diagram at B in the middle; Figure 7 This is a schematic diagram of the connection structure between the auxiliary frame and the load-bearing block of the present invention; Figure 8 This is a schematic diagram of the connection structure between the guide plate and the auxiliary frame of the present invention; Figure 9 This is a schematic diagram of the connection structure between the long pin and the push rod of the present invention; Figure 10 This is a schematic diagram of the structure of the distribution state of the air outlet pipe of the present invention.

[0021] In the figure: 1. working plate; 2. robotic arm; 3. motor; 4. limiting rod; 5. threaded rod; 6. slide plate; 7. clamping plate; 8. fixed block; 9. connecting shaft; 10. traction rope; 11. torsion spring; 12. circular plate; 13. protrusion; 14. movable frame; 15. limiting block; 16. long pin; 17. tooth block; 18. upper connecting block; 19. long rod; 20. gear; 21. dust suction disc; 22. push rod; 23. guide plate; 24. auxiliary frame; 25. force block; 26. reset spring; 27. damping rod; 28. lower connecting plate; 29. airbag; 30. air inlet pipe; 31. air outlet pipe; 32. drainage plate. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0023] The present invention provides the following technical solution: a welding device for producing motor vehicle heaters with a clamping mechanism.

[0024] Embodiment 1: By setting the motor 3 and the clamping plate 7, the motor vehicle heaters of different sizes can be clamped quickly, such as Figure 1-Figure 2As shown, it includes a working plate 1, the upper surface of the working plate 1 is bolted to a robotic arm 2, and a welding head is provided at the end of the robotic arm 2, and the lower surface of the working plate 1 is bolted to a motor 3; the output end of the motor 3 is fixedly connected to a threaded rod 5, and the surface of the threaded rod 5 is threadedly connected to a slide plate 6, and the surface of the slide plate 6 is fixedly connected to a clamping plate 7, the slide plates 6 are symmetrically distributed on both sides of the working plate 1, and a limiting rod 4 is fixedly connected to the inner wall of the working plate 1, and the surface of the limiting rod 4 is sleeved with a slide plate 6, and the spiral rotation directions on both sides of the threaded rod 5 are opposite.

[0025] During use, when it is necessary to clamp the workpiece, place the workpiece on the work plate 1, then start the motor 3, the motor 3 drives the threaded rod 5 to rotate, and then the threaded rod 5 cooperates with the limit rod 4 to make the slide plate 6 and the clamping plate 7 move to the middle position of the work plate 1, and finally the clamping plates 7 symmetrically distributed on both sides clamp and fix the workpiece. The operation process is simple and fast, and it can quickly clamp motor vehicle heaters of different sizes. After clamping, the welding head is provided on the robot arm 2 to complete the welding of the workpiece.

[0026] Embodiment 2: The difference from embodiment 1 is that the dust collecting disc 21 can be put into a swinging state by setting a swing mechanism, thereby being able to carry out a multi-range smoke absorption process, thereby improving the working efficiency. Figure 3-Figure 5 As shown, the upper surface of the working plate 1 is fixedly connected to an upper connecting block 18, and the upper connecting block 18 is connected to a dust collecting disc 21 through a swinging mechanism; the upper surface of the working plate 1 is fixedly connected to a fixed block 8, and a connecting shaft 9 is rotatably provided inside the fixed block 8, and a traction rope 10 is fixedly connected to the surface of the connecting shaft 9, and a torsion spring 11 is fixedly connected to the surface of the connecting shaft 9, and the other side of the torsion spring 11 is fixedly connected to the inner wall of the fixed block 8.

[0027] The other side of the traction rope 10 is fixedly connected to the outer wall of the clamping plate 7, the end of the connecting shaft 9 is fixedly connected to a circular plate 12, and the surface of the circular plate 12 is fixedly connected to a protrusion 13, and the surface of the protrusion 13 is sleeved with a movable frame 14, the upper surface of the working plate 1 is fixedly connected to a limit block 15, and the side of the movable frame 14 is fixedly connected to a long pin 16, and the long pin 16 passes through the inside of the limit block 15.

[0028] The swing mechanism includes a long rod 19 rotatably arranged inside the upper connecting block 18, and the end of the long rod 19 is fixedly connected to a gear 20, and the lower surface of the long pin 16 is fixedly connected to a tooth block 17 meshing with the gear 20 at equal intervals, and the surface of the dust suction plate 21 is provided with dust suction ports at equal intervals, and the dust suction plate 21 is connected to the input end of the external flue gas treatment device through an external hose.

[0029] During the movement of the clamping plate 7, the clamping plate 7 drives the connecting shaft 9 to rotate through the traction rope 10. At this time, the circular plate 12 and the protrusion 13 rotate synchronously, and then the long pin 16 and the movable frame 14 move synchronously. The long pin 16 and the movable frame 14 and the limit block 15 work together to make the long pin 16 and the movable frame 14 perform reciprocating linear motion in the horizontal direction. When the long pin 16 moves, the gear 20 is driven to rotate through the tooth block 17, and then the long rod 19 rotates inside the upper connecting block 18 under the action of the tooth block 17 and the gear 20. At this time, the long rod 19 drives the dust suction disc 21 to swing back and forth. At this time, the range of the dust suction disc 21 absorbing smoke is expanded, which can better handle the smoke generated during the welding process.

[0030] Embodiment 3: Different from embodiment 2, the auxiliary frame 24 is provided to quickly collect welding slag, thus reducing the workload of the staff in the later stage. Figure 6-Figure 9 As shown, the lower surface of the working plate 1 is fixedly connected to a guide plate 23, and the guide plate 23 is connected to an auxiliary frame 24 through a reciprocating mechanism, and the lower surface of the working plate 1 is fixedly connected to a lower connecting plate 28; the reciprocating mechanism includes a return spring 26 fixedly connected to the inner wall of the guide plate 23, and the other side of the return spring 26 is fixedly connected to the surface of the auxiliary frame 24, and the auxiliary frame 24 is sleeved and connected to the surface of the guide plate 23, and the surface of the auxiliary frame 24 is fixedly connected to a force block 25.

[0031] The lower surface of the long pin 16 is fixedly connected to a push rod 22, and the left side view of the push rod 22 is an inverted "L" structure, and the end of the push rod 22 is in contact with the surface of the force block 25, and the surface of the force block 25 is inclined. The front view of the guide plate 23 is "U"-shaped, and a damping rod 27 is provided between the guide plate 23 and the auxiliary frame 24, and both sides of the auxiliary frame 24 are convex, and the auxiliary frame 24 is inclined.

[0032] When the long pin 16 moves, it will intermittently push the force block 25 through the push rod 22. When the force block 25 is pushed, the force block 25 drives the auxiliary frame 24 to slide on the surface of the guide plate 23. At this time, the return spring 26 is squeezed, and when the force block 25 is not pushed, the force block 25 and the auxiliary frame 24 move back under the action of the return spring 26. The above process is repeated, and the auxiliary frame 24 performs reciprocating linear motion in the horizontal direction. At this time, the efficiency of the auxiliary frame 24 in discharging debris is increased, and the auxiliary frame 24 is tilted, and both sides of the auxiliary frame 24 are convex, so that the auxiliary frame 24 can unload materials faster, so that the debris can be discharged quickly (the damping rod 27 makes the auxiliary frame 24 move with better stability).

[0033] Embodiment 4: Different from embodiment 3, the air bag 29 and the air outlet pipe 31 are provided to better cool the welding slag. Figure 10As shown, an airbag 29 is bonded to the surface of the lower connecting plate 28, and an air outlet pipe 31 is fixedly connected to the surface of the airbag 29. The surface of the airbag 29 fits the surface of the auxiliary frame 24, and the airbag 29 is initially in an extruded state. An air inlet pipe 30 is fixedly connected to the lower surface of the airbag 29. The air outlet pipes 31 are evenly spaced on the surface of the airbag 29, and one-way valves are provided on the surfaces of the air outlet pipe 31 and the air inlet pipe 30. A guide plate 32 is fixedly connected to the inner wall of the auxiliary frame 24, and the surface of the guide plate 32 is arc-shaped.

[0034] When the auxiliary frame 24 moves, it will cooperate with the lower connecting plate 28 to intermittently squeeze the airbag 29. When the airbag 29 is squeezed, the airbag 29 will spray air through the air outlet pipe 31, and when the airbag 29 is not squeezed, the airbag 29 will expand again. At this time, the airbag 29 will inhale air through the air inlet pipe 30, that is, the airbag 29 will intermittently spray air through the air outlet pipe 31 to quickly cool down the debris so that the debris will not stick to the auxiliary frame 24. At the same time, the airflow also has the effect of assisting blowing, so that the debris is quickly discharged, and the guide plate 32 prevents the sticky residue from contacting the air outlet pipe 31. The one-way valves on the surface of the air outlet pipe 31 and the air inlet pipe 30 make the air flow direction from the air inlet pipe 30 to the air outlet pipe 31, and backflow will not occur.

[0035] 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.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding device for producing motor vehicle heaters with a clamping mechanism, comprising a working plate (1), the upper surface of the working plate (1) being bolted to a mechanical arm (2), the end of the mechanical arm (2) being provided with a welding head, and the lower surface of the working plate (1) being bolted to a motor (3); Its characteristics are: The output end of the motor (3) is fixedly connected to a threaded rod (5), the surface of the threaded rod (5) is threadedly connected to a slide plate (6), and the surface of the slide plate (6) is fixedly connected to a clamping plate (7); An upper connecting block (18) is fixedly connected to the upper surface of the working plate (1), and the upper connecting block (18) is connected to a dust collecting disc (21) via a swing mechanism; The lower surface of the working plate (1) is fixedly connected to a guide plate (23), and the guide plate (23) is connected to an auxiliary frame (24) via a reciprocating mechanism, and the lower surface of the working plate (1) is fixedly connected to a lower connecting plate (28); An air bag (29) is bonded to the surface of the lower connecting plate (28), and an air outlet pipe (31) is fixedly connected to the surface of the air bag (29).

2. A welding device for producing a motor vehicle heater with a clamping mechanism according to claim 1, characterized in that: The slide plates (6) are symmetrically distributed on both sides of the working plate (1), and a limiting rod (4) is fixedly connected to the inner wall of the working plate (1), and the surface of the limiting rod (4) is sleeved with the slide plates (6), and the spiral rotation directions of the two sides of the threaded rod (5) are opposite.

3. The welding device for producing a motor vehicle heater with a clamping mechanism according to claim 1, characterized in that: The upper surface of the working plate (1) is fixedly connected to a fixed block (8), and a connecting shaft (9) is rotatably provided inside the fixed block (8), and a traction rope (10) is wound and fixedly connected to the surface of the connecting shaft (9), and a torsion spring (11) is fixedly connected to the surface of the connecting shaft (9), and the other side of the torsion spring (11) is fixedly connected to the inner wall of the fixed block (8).

4. A welding device for producing a motor vehicle heater with a clamping mechanism according to claim 3, characterized in that: The other side of the traction rope (10) is fixedly connected to the outer wall of the clamping plate (7), the end of the connecting shaft (9) is fixedly connected to a circular plate (12), and the surface of the circular plate (12) is fixedly connected to a protrusion (13), and the surface of the protrusion (13) is sleeved and connected to a movable frame (14), the upper surface of the working plate (1) is fixedly connected to a limit block (15), the side of the movable frame (14) is fixedly connected to a long pin (16), and the long pin (16) passes through the interior of the limit block (15).

5. The welding device for producing a motor vehicle heater with a clamping mechanism according to claim 4, characterized in that: The swing mechanism comprises a long rod (19) rotatably arranged inside the upper connecting block (18), and the end of the long rod (19) is fixedly connected to a gear (20), and the lower surface of the long pin (16) is fixedly connected to a tooth block (17) meshing with the gear (20) at equal intervals.

6. The welding device for producing a motor vehicle heater with a clamping mechanism according to claim 1, characterized in that: The surface of the dust collecting disc (21) is provided with dust collecting ports at equal intervals, and the dust collecting disc (21) is connected to an input end of an external flue gas treatment device via an external hose.

7. The welding device for producing motor vehicle heaters with a clamping mechanism according to claim 4, characterized in that: The reciprocating mechanism includes a return spring (26) fixedly connected to the inner wall of the guide plate (23), and the other side of the return spring (26) is fixedly connected to the surface of the auxiliary frame (24), and the auxiliary frame (24) is sleeved and connected to the surface of the guide plate (23), and the surface of the auxiliary frame (24) is fixedly connected to a force block (25).

8. The welding device for producing a motor vehicle heater with a clamping mechanism according to claim 7, characterized in that: The lower surface of the long pin (16) is fixedly connected to a push rod (22), and the push rod (22) is an inverted "L" structure when viewed from the left, and the end of the push rod (22) is in contact with the surface of the force block (25), and the surface of the force block (25) is inclined, and the guide plate (23) is "U"-shaped when viewed from the front, and a damping rod (27) is provided between the guide plate (23) and the auxiliary frame (24), and both sides of the auxiliary frame (24) are convex, and the auxiliary frame (24) is inclined.

9. The welding device for producing motor vehicle heaters with a clamping mechanism according to claim 1, characterized in that: The surface of the airbag (29) is in contact with the surface of the auxiliary frame (24), and the airbag (29) is initially in a squeezed state. An air inlet pipe (30) is fixedly connected to the lower surface of the airbag (29), and the air outlet pipes (31) are evenly spaced on the surface of the airbag (29). Both the surface of the air outlet pipe (31) and the surface of the air inlet pipe (30) are provided with a one-way valve. A guide plate (32) is fixedly connected to the inner wall of the auxiliary frame (24), and the surface of the guide plate (32) is arc-shaped.

10. A method for using a welding device for producing a motor vehicle heater with a clamping mechanism, characterized in that: The following steps are involved: S1. During operation, the workpiece to be processed is placed on the working plate (1). After the motor (3) is started, the slide plate (6) drives the clamping plate (7) to move to the middle position of the working plate (1) under the action of the threaded rod (5) and the limit rod (4). Finally, the clamping plates (7) on both sides clamp and fix the workpiece. S2. During the movement of the clamping plate (7), the clamping plate (7) drives the connecting shaft (9) to rotate through the traction rope (10). At this time, the circular plate (12) and the protrusion (13) rotate synchronously, and then the long pin (16) and the movable frame (14) move synchronously. The long pin (16) and the movable frame (14) and the limit block (15) work together to make the long pin (16) and the movable frame (14) perform reciprocating linear motion in the horizontal direction. Then, the long rod (19) drives the dust collecting disc (21) to swing back and forth under the action of the tooth block (17) and the gear (20). At this time, the range of the dust collecting disc (21) absorbing smoke is expanded; S3. When the long pin (16) moves, it will intermittently push the force block (25) through the push rod (22). At this time, the force block (25) and the auxiliary frame (24) perform reciprocating linear motion in the horizontal direction under the action of the thrust and elastic force and the guide plate (23). At this time, the efficiency of the auxiliary frame (24) in discharging debris increases; S4. When the auxiliary frame (24) moves, the air bag (29) is intermittently squeezed. At this time, the air bag (29) will intermittently eject air through the air outlet pipe (31) to quickly cool the debris.

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