Adjustable automatic welding ejection device
By designing an adjustable automatic welding ejection device, the problem of demolding difficulties caused by fixed ejection height was solved, enabling flexible adjustment of ejection height and automatic cleaning, thereby improving production efficiency and welding quality.
Patent Information
- Application Number
- CN202520611444.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The existing welding ejection device has a fixed ejection height, which makes it difficult for workpieces of different specifications to be smoothly removed from the mold, affecting production efficiency and potentially causing workpiece deformation or damage.
An adjustable automatic welding ejection device was designed. The ejection height can be flexibly adjusted by a motor-driven adjusting rod and a swing linkage mechanism, and a buffer component is provided to reduce impact force. At the same time, a reciprocating cleaning mechanism is set up to achieve automatic cleaning of the welding table by using a motor and linkage system.
It achieves flexible adaptation of ejection height, ensuring smooth demolding of workpieces, reducing deformation and damage, improving the versatility and production efficiency of the device, and keeping the welding station clean to ensure welding quality.
Smart Images
Figure CN223734185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding equipment technology, and in particular to an adjustable automatic welding ejection device. Background Technology
[0002] Welding is a common joining and processing technology in daily life. It is a processing method that uses heating, pressurization, or both, and adds filler materials as needed to achieve atomic bonding of the weldment. It usually uses electrical energy, chemical energy, etc. to generate high temperatures, which melt the metal at the joint of the weldment. After cooling and solidification, a strong connection is formed, which can achieve permanent connection of metal materials. It can be divided into many types such as fusion welding, pressure welding, and brazing. Welding can be used to repair furniture, kitchenware and other items, and can also be used to make some creative handicrafts. In industrial production, welding is a crucial basic process, widely used in many fields such as automobile manufacturing, shipbuilding, construction, and electronic equipment production. It can achieve efficient connection of metal components, and plays a key role in ensuring product quality, improving production efficiency and reducing costs. It is an important supporting technology for promoting industrial development.
[0003] The welding ejection equipment mainly consists of a power unit, ejector rod, positioning device, and control system. The power unit provides the power for ejection, commonly using cylinders such as pneumatic cylinders or hydraulic cylinders. The ejector rod acts directly on the weldment, ejecting the completed workpiece from the welding mold. The positioning device accurately determines the position of the workpiece and the ejector rod, ensuring the accuracy of the ejection action. The control system coordinates the operation of each component, setting parameters such as the ejection timing and speed. Its overall working principle is that after the welding process is completed, the control system issues a command, the power unit starts, and drives the ejector rod to eject the weldment from the mold according to the set parameters, with the assistance of the positioning device, completing the entire welding ejection process.
[0004] In the prior art, since the ejection height of common ejection devices is fixed, it is impossible to adapt to different height requirements when producing products of different specifications. This can lead to the workpiece being difficult to detach smoothly from the mold, reducing production efficiency. Furthermore, the mismatch between the ejection height and the product can also cause uneven stress on the workpiece, resulting in quality problems such as deformation and damage. Therefore, an adjustable automatic welding ejection device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an adjustable automatic welding ejection device, which aims to improve the problem in the prior art where the fixed ejection height of the ejection device makes it difficult for workpieces of different heights to be smoothly removed from the mold.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An adjustable automatic welding ejection device includes a welding table, an ejection mechanism slidably connected to the inner side of the welding table, a fixing groove opened at the top of the welding table, and a reciprocating cleaning mechanism fixedly connected to the outer side of the welding table.
[0008] The ejection mechanism includes a second motor, the outer side of which is fixedly connected to the inner side of the welding table. An adjusting rod is fixedly connected to the outer side of the output end of the second motor. A rotating shaft is fixedly connected to the outer side of the adjusting rod. A swing linkage is rotatably connected to the outer side of the rotating shaft of the adjusting rod. An ejection block is slidably connected to the inner side of the welding table. An ejection push rod is rotatably connected to the outer side of the bottom rotating shaft of the ejection block. The outer side of the middle rotating shaft of the ejection push rod is rotatably connected to the inner side of the swing linkage. A roller is rotatably connected to the outer side of the bottom rotating shaft of the ejection push rod. A buffer assembly is sleeved on the outer side of the ejection block.
[0009] As a further description of the above technical solution:
[0010] The buffer assembly includes a buffer spring, which is sleeved on the outside of the ejector block. One end of the buffer spring is fixedly connected to the outside of the ejector block, and the other end of the buffer spring is fixedly connected to the inside of the welding station.
[0011] As a further description of the above technical solution:
[0012] A fixed rod is fixedly connected to the inner side of the welding table, and a swing push rod is rotatably connected to the outer side of the fixed rod. A groove is opened at the top of the swing push rod, and the outer side of roller one is slidably connected to the inner side of the groove of the swing push rod. Roller two is rotatably connected to the outer side of the bottom rotating shaft of the swing push rod.
[0013] As a further description of the above technical solution:
[0014] A motor three is fixedly connected to the inner side of the welding table, and a cam is fixedly connected to the outer side of the output end of the motor three. The outer side of the cam is slidably connected to the outer side of the roller two.
[0015] As a further description of the above technical solution:
[0016] A lifting slide rod is fixedly connected to the top of the welding table, and a welding plate is slidably connected to the outside of the lifting slide rod. A lifting cylinder is fixedly connected to the top of the welding table, and the output end of the lifting cylinder is fixedly connected to the bottom of the welding plate. Two extension plates are fixedly connected to the bottom of the welding plate.
[0017] As a further description of the above technical solution:
[0018] A motor is fixedly connected to the outer side of the extension plate. A lead screw is fixedly connected to the outer side of the output end of the motor. The outer side of the lead screw is rotatably connected to the inner side of the two extension plates. A sliding block is threadedly connected to the outer side of the lead screw. The top of the sliding block is slidably connected to the bottom of the welding plate. A welding nozzle is fixedly connected to the bottom of the sliding block.
[0019] As a further description of the above technical solution:
[0020] The reciprocating cleaning mechanism includes a cleaning housing, the welding table is fixedly connected to the outside of the cleaning housing, a motor is fixedly connected to the outside of the cleaning housing, a short connecting rod is fixedly connected to the outside of the output end of the motor, a rotating shaft is fixedly connected to the outside of the end of the short connecting rod away from the motor, and a long connecting rod is rotatably connected to the outside of the short connecting rod rotating shaft.
[0021] As a further description of the above technical solution:
[0022] The outer side of the cleaning housing is provided with a Y-shaped groove, and a sliding column is slidably connected to the inner side of the Y-shaped groove. A T-shaped rotating block is fixedly connected to the outer side of the sliding column. A rotating shaft is fixedly connected to one end of the T-shaped rotating block. The outer side of the rotating shaft of the T-shaped rotating block is rotatably connected to the inner side of the long connecting rod. A cleaning brush is fixedly connected to one end of the T-shaped rotating block. The outer side of the T-shaped rotating block is rotatably connected to the inner side of the cleaning housing.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, motor three drives the cam to rotate, which pushes roller two, causing the adjusting rod to rotate around the fixed rod, driving the ejector push rod to move up and down, and then driving the ejector block to eject the workpiece. The buffer spring plays a buffering and shock-absorbing role. When it is necessary to adjust the ejection height, motor two drives the adjusting rod to swing, causing the swing linkage to rotate and change its lateral position, thereby realizing the change of the ejection height of the ejector push rod. The height-variable ejection mechanism can make the ejector block adapt to different workpieces, ensuring that the workpiece is ejected smoothly, which is convenient for subsequent picking and processing, and improves the versatility and practicality of the device.
[0025] 2. In this utility model, after the finished product is removed after welding, the cylinder is first started to lift the welding plate to the highest position to avoid damage to the cleaning brush and welding nozzle. Then, the motor is started, which drives the short connecting rod to rotate. The long connecting rod converts this rotation into the swing of the T-shaped rotating block. The T-shaped rotating block, in cooperation with the Y-shaped sliding groove and the sliding column, realizes the flipping and reciprocating motion, which in turn drives the cleaning brush to sweep the surface of the welding table back and forth, completing the automatic cleaning of the welding table, effectively removing residue and spatter, keeping the welding table clean, providing good conditions for subsequent welding work, and ensuring welding quality. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of an adjustable automatic welding ejection device proposed in this utility model.
[0027] Figure 2 This is a schematic diagram of the lead screw of an adjustable automatic welding ejector device proposed in this utility model;
[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0029] Figure 4 This is a schematic diagram of the structure of a cleaning brush for an adjustable automatic welding ejection device proposed in this utility model.
[0030] Figure 5 This is a schematic diagram of the sliding column of an adjustable automatic welding ejection device proposed in this utility model.
[0031] Legend:
[0032] 1. Welding table; 2. Fixing groove; 3. Lifting slide bar; 4. Lifting cylinder; 5. Welding plate; 6. Extension plate; 7. Motor 1; 8. Lead screw; 9. Sliding block; 10. Welding nozzle; 11. Motor 2; 12. Adjusting rod; 13. Swinging connecting rod; 14. Ejector push rod; 15. Roller 1; 16. Fixing rod; 17. Swinging push rod; 18. Roller 2; 19. Motor 3; 20. Cam; 21. Ejector block; 22. Buffer spring; 23. Cleaning shell; 24. Motor 4; 25. Short connecting rod; 26. Long connecting rod; 27. T-shaped rotating block; 28. Sliding column; 29. Y-shaped slide groove; 30. Cleaning brush. Detailed Implementation
[0033] 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.
[0034] Reference Figures 1 to 3An embodiment of this utility model is provided: an adjustable automatic welding ejection device, including a welding table 1. The welding table 1 is the basic support structure of the entire device. The surface is treated with rust prevention and can withstand large pressure and impact to maintain the stability of the structure. An ejection mechanism is slidably connected to the inner side of the welding table 1. A fixing groove 2 is opened at the top of the welding table 1. The fixing groove 2 can lock and fix the unwelded raw material to facilitate subsequent welding. A reciprocating cleaning mechanism is fixedly connected to the outer side of the welding table 1.
[0035] The ejection mechanism includes a second motor 11, which serves as the power source for the ejection mechanism and can precisely control the output power. The outer side of the second motor 11 is fixedly connected to the inner side of the welding table 1. An adjusting rod 12 is fixedly connected to the outer side of the output end of the second motor 11. The adjusting rod 12 can swing at a certain angle under the drive of the second motor 11 and remains stable after the second motor 11 stops driving, thereby limiting the range of motion of the ejection push rod 14. A rotating shaft is fixedly connected to the outer side of the adjusting rod 12. A swing connecting rod 13 is rotatably connected to the outer side of the rotating shaft of the adjusting rod 12. After the position of the adjusting rod 12 is limited, the swing connecting rod 13 can rotate around the axis of the adjusting rod 12 and drive the ejection push rod 14. Rod 14 moves up and down. An ejector block 21 is slidably connected to the inner side of welding table 1. The ejector block 21 is a component directly used to eject the workpiece. It has high wear resistance and strength. An ejector push rod 14 is rotatably connected to the outer side of the bottom rotating shaft of the ejector block 21. Under the action of the swing connecting rod 13, the ejector push rod 14 pushes the ejector block 21 to achieve the ejection action by moving up and down. The outer side of the middle rotating shaft of the ejector push rod 14 is rotatably connected to the inner side of the swing connecting rod 13. A roller 15 is rotatably connected to the outer side of the bottom rotating shaft of the ejector push rod 14. The roller 15 can reduce the friction between the ejector push rod 14 and the swing push rod 17, making the movement smoother. A buffer assembly is sleeved on the outer side of the ejector block 21.
[0036] The buffer assembly includes a buffer spring 22. When the ejector block 21 is ejected or retracted, the buffer spring 22 can buffer and dampen the shock, reducing the impact of the ejection process on the workpiece and equipment. It also helps to make the ejection action smoother. The buffer spring 22 is sleeved on the outside of the ejector block 21. One end of the buffer spring 22 is fixedly connected to the outside of the ejector block 21, and the other end of the buffer spring 22 is fixedly connected to the inside of the welding table 1.
[0037] A fixed rod 16 is fixedly connected to the inner side of the welding table 1. The fixed rod 16 serves as a rotational support for the swing push rod 17. It is a sturdy metal rod that ensures the stability of the swing push rod 17 during rotation. The swing push rod 17 is rotatably connected to the outer side of the fixed rod 16. The cam 20 is driven to rotate by the motor 3 19, which pushes the roller 2 18 to make the swing push rod 17 rotate around the fixed rod 16, changing the position of the roller 1 15 in the groove, thereby adjusting the ejection height of the ejector block 21 to adapt to the ejection height requirements of different welding workpieces. The top of the swing push rod 17 has a groove, and the outer side of the roller 1 15 is slidably connected to the inner side of the groove of the swing push rod 17. The outer side of the bottom rotating shaft of the swing push rod 17 is rotatably connected to the roller 2 18. Compared with direct surface contact sliding, the roller can effectively reduce the friction between the two, making the movement process smoother, reducing component wear, and improving the service life and stability of the device.
[0038] A motor 19 is fixedly connected to the inner side of the welding table 1. A cam 20 is fixedly connected to the outer side of the output end of the motor 19. As the cam 20 rotates, the change in its profile shape drives the roller 18 to move, which in turn causes the swing push rod 17 to rotate around the fixed rod 16. The outer side of the cam 20 is slidably connected to the outer side of the roller 18.
[0039] A lifting slide bar 3 is fixedly connected to the top of the welding table 1. The lifting slide bar 3 provides vertical sliding support for the welding plate 5, ensuring the stability and accuracy of the welding plate 5 during the lifting process. The welding plate 5 is slidably connected to the outside of the lifting slide bar 3. The welding plate 5 is used to install welding nozzles 10 and other welding-related components. It can move up and down under the action of the lifting cylinder 4 to adjust the distance between the welding nozzle 10 and the workpiece. The lifting cylinder 4 is fixedly connected to the top of the welding table 1 as the power source for lifting the welding plate 5. It can drive the welding plate 5 to move up and down quickly and stably. The output end of the lifting cylinder 4 is fixedly connected to the bottom of the welding plate 5. Two extension plates 6 are fixedly connected to the bottom of the welding plate 5 for installing components such as motor 7 and lead screw 8, providing an installation base for the horizontal movement of the welding nozzle 10.
[0040] A motor 7 is fixedly connected to the outer side of the extension plate 6. The motor 7 is installed on the outer side of the extension plate 6 to provide power for the rotation of the lead screw 8, thereby realizing the precise horizontal movement of the welding nozzle 10. The lead screw 8 is fixedly connected to the outer side of the output end of the motor 7. When the lead screw 8 rotates, it causes the sliding block 9 to slide horizontally at the bottom of the welding plate 5 through threaded transmission. The outer side of the lead screw 8 is rotatably connected to the inner side of the two extension plates 6. The outer side of the lead screw 8 is threadedly connected to the sliding block 9. Driven by the lead screw 8, the sliding block 9 drives the welding nozzle 10 to move in the horizontal direction to adjust the position of the welding nozzle 10 and realize welding at different positions. The top of the sliding block 9 is slidably connected to the bottom of the welding plate 5, and the bottom of the sliding block 9 is fixedly connected to the welding nozzle 10. During the automatic welding process, the welding nozzle 10 can accurately output the welding material according to the set parameters, so that the welding material melts at the welding part and realizes the connection between the workpieces.
[0041] Reference Figure 1 , Figure 4 and Figure 5 The reciprocating cleaning mechanism includes a cleaning housing 23, which is fixedly connected to the outside of the welding table 1 to provide installation and protection for other components of the reciprocating cleaning mechanism. The inside of the welding table 1 is fixedly connected to the outside of the cleaning housing 23. A motor 24 is fixedly connected to the outside of the cleaning housing 23. The motor 24 serves as the power source for the reciprocating cleaning mechanism, driving the short connecting rod 25 to rotate and controlling the reciprocating speed of the cleaning brush 30. The output end of the motor 24 is fixedly connected to the outside of the short connecting rod 25, which transmits the rotational power of the motor 24 to the long connecting rod 26, providing the power source for the entire reciprocating cleaning mechanism and enabling the cleaning brush 30 to perform reciprocating cleaning actions. A rotating shaft is fixedly connected to the outside of the end of the short connecting rod 25 away from the motor 24. The long connecting rod 26 is rotatably connected to the outside of the rotating shaft of the short connecting rod 25, with one end rotatably connected to the short connecting rod 25 and the other end rotatably connected to the T-shaped rotating block 27. The long connecting rod 26 serves to transmit power and change the direction of motion, converting the rotation of the short connecting rod 25 into the oscillation of the T-shaped rotating block 27.
[0042] A Y-shaped groove 29 is provided on the outer side of the cleaning housing 23. The Y-shaped groove 29 is located on the outer side of the cleaning housing 23 and cooperates with the sliding column 28 to restrict the movement trajectory of the T-shaped rotating block 27, allowing it to reciprocate in a predetermined manner. The sliding column 28 is slidably connected to the inner side of the Y-shaped groove 29. The cooperation between the sliding column 28 and the Y-shaped groove 29 ensures the accuracy and stability of the movement of the T-shaped rotating block 27, allowing the T-shaped rotating block 27 to slide along a predetermined movement trajectory. The T-shaped rotating block 27 is fixedly connected to the outer side of the sliding column 28. The T-shaped rotating block 27 is driven by the long connecting rod 26. The cleaning brush 30 reciprocates by sliding within the Y-shaped groove 29, cleaning the surface of the welding station 1. One end of the T-shaped rotating block 27 is fixedly connected to a rotating shaft. The outer side of the rotating shaft of the T-shaped rotating block 27 is rotatably connected to the inner side of the long connecting rod 26. One end of the T-shaped rotating block 27 is fixedly connected to the cleaning brush 30. The cleaning brush 30 is fixed on the T-shaped rotating block 27 and is used to clean welding residue, spatter and other impurities from the surface of the welding station 1, keeping the surface of the welding station 1 clean and preparing it for the next welding. The outer side of the T-shaped rotating block 27 is rotatably connected to the inner side of the cleaning housing 23.
[0043] Working principle: During operation, the unwelded raw material is first clamped and fixed in the fixed groove 2 at the top of the welding table 1. The lifting cylinder 4 is started, which drives the welding plate 5 to move up and down along the lifting slide bar 3. The vertical distance between the welding nozzle 10 and the workpiece is adjusted. At the same time, the motor 7 drives the lead screw 8 to rotate, so that the sliding block 9 slides horizontally at the bottom of the welding plate 5, which drives the welding nozzle 10 to move horizontally and adjust it to a suitable welding position.
[0044] After welding is completed, start motor 3 19. Motor 3 19 drives cam 20 to rotate, push roller 2 18, and make swing push rod 17 rotate around fixed rod 16, pushing ejector push rod 14 to move up and down, thereby driving ejector block 21 to eject the workpiece. During the ejection process, buffer spring 22 plays a buffering and shock absorption role. When it is necessary to adjust the ejection height, first start motor 2 11. Motor 2 11 drives adjustment rod 12 to swing, and swing connecting rod 13 rotates accordingly. When adjustment rod 12 rotates to the appropriate position, turn off motor 2 11. At this time, the position of adjustment rod 12 is fixed, and the lateral position of swing connecting rod 13 changes, thereby realizing the change of ejection height of ejector push rod 14. This allows ejector block 21 to be adapted to different workpieces, ensuring that the workpiece can be smoothly ejected from welding table 1 after welding, which is convenient for subsequent picking, placing and processing operations.
[0045] After welding is completed and the finished product is removed, the cylinder is activated to raise the welding plate 5 to its highest position to prevent the cleaning brush 30 from colliding with the welding nozzle 10 and causing damage during the flipping process. Then, the motor 4 24 is activated, which drives the short connecting rod 25 to rotate. The long connecting rod 26 converts this rotation into the swing of the T-shaped rotating block 27. With the cooperation of the Y-shaped sliding groove 29 and the sliding column 28, the T-shaped rotating block 27 can achieve flipping and reciprocating motion, thereby driving the cleaning brush 30 to reciprocate and clean the residue and spatter on the surface of the welding table 1.
[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustable automatic welding ejection device comprising a welding table (1), characterized in that: The inner side of the welding table (1) is slidably connected with an ejection mechanism, the top end of the welding table (1) is provided with a fixed groove (2), and the outer side of the welding table (1) is fixedly connected with a reciprocating cleaning mechanism. The ejection mechanism comprises a second motor (11), the outer side of the second motor (11) is fixedly connected to the inner side of the welding table (1), the output end of the second motor (11) is fixedly connected with an adjusting rod (12), the outer side of the adjusting rod (12) is fixedly connected with a rotating shaft, the outer side of the rotating shaft of the adjusting rod (12) is rotatably connected with a swing connecting rod (13), the inner side of the welding table (1) is slidably connected with an ejection block (21), the bottom rotating shaft of the ejection block (21) is rotatably connected with an ejection push rod (14), the middle segment rotating shaft of the ejection push rod (14) is rotatably connected to the inner side of the swing connecting rod (13), and the bottom rotating shaft of the ejection push rod (14) is rotatably connected with a roller (15). The outer side of the ejection block (21) is provided with a buffer assembly.
2. An adjustable automatic ejection device for welding according to claim 1, characterized in that: The buffer assembly comprises a buffer spring (22), the buffer spring (22) is sleeved on the outer side of the ejection block (21), one end of the buffer spring (22) is fixedly connected to the outer side of the ejection block (21), and the other end of the buffer spring (22) is fixedly connected to the inner side of the welding table (1).
3. An adjustable automatic ejection device for welding according to claim 1, characterized in that: The inner side of the welding table (1) is fixedly connected with a fixed rod (16), the outer side of the fixed rod (16) is rotatably connected with a swing push rod (17), the top of the swing push rod (17) is provided with a groove, the outer side of the roller (15) is slidably connected to the inner side of the groove of the swing push rod (17), and the bottom rotating shaft of the swing push rod (17) is rotatably connected with a roller (18).
4. An adjustable automatic ejection device for welding according to claim 3, characterized in that: The inner side of the welding table (1) is fixedly connected with a third motor (19), the output end of the third motor (19) is fixedly connected with a cam (20), and the outer side of the cam (20) is slidably connected to the outer side of the roller (18).
5. An adjustable automatic ejection device for welding according to claim 1, characterized in that: The top of the welding table (1) is fixedly connected with a lifting slide rod (3), the outer side of the lifting slide rod (3) is slidably connected with a welding plate (5), the top of the welding table (1) is fixedly connected with a lifting cylinder (4), the output end of the lifting cylinder (4) is fixedly connected to the bottom of the welding plate (5), and the bottom of the welding plate (5) is fixedly connected with two extension plates (6).
6. An adjustable automatic ejection device for welding according to claim 5, characterized in that: The outer side of the extension plate (6) is fixedly connected with a first motor (7), the output end of the first motor (7) is fixedly connected with a lead screw (8), the outer side of the lead screw (8) is rotatably connected to the inner side of the two extension plates (6), the outer side of the lead screw (8) is threadedly connected with a sliding block (9), the top of the sliding block (9) is slidably connected to the bottom of the welding plate (5), and the bottom of the sliding block (9) is fixedly connected with a welding nozzle (10).
7. An adjustable automatic ejection device for welding according to claim 1, characterized in that: The reciprocating cleaning mechanism comprises a cleaning shell (23), the welding station (1) is fixedly connected to the outside of the cleaning shell (23), the outside of the cleaning shell (23) is fixedly connected with a fourth motor (24), the output end of the fourth motor (24) is fixedly connected with a short connecting rod (25), one end of the short connecting rod (25) away from the fourth motor (24) is fixedly connected with a rotating shaft, and the rotating shaft of the short connecting rod (25) is rotatably connected with a long connecting rod (26).
8. An adjustable automatic weld ejection device according to claim 7, wherein: The outside of the cleaning shell (23) is provided with a Y-shaped sliding groove (29), the inside of the Y-shaped sliding groove (29) is slidably connected with a sliding column (28), the outside of the sliding column (28) is fixedly connected with a T-shaped rotating block (27), one end of the T-shaped rotating block (27) is fixedly connected with a rotating shaft, the rotating shaft of the T-shaped rotating block (27) is rotatably connected to the inside of the long connecting rod (26), and the T-shaped rotating block (27) is rotatably connected to the inside of the cleaning shell (23).