A welding device for processing automotive interiors

Abstract

This invention relates to the field of automotive interior processing technology, specifically to a welding device for automotive interior processing, comprising a base, a connecting unit, a pneumatic cylinder, a booster, and a control panel. A mold is mounted at the bottom of the booster, and a connecting screw is positioned at the center of the top of the mold. The booster is connected to the mold via the connecting screw. An auxiliary mechanism is located on the outer side of the mold. This invention integrates two independent processes—cleaning and bubble removal—into a single auxiliary mechanism. During the movement of the bonding wheel by the drive motor, the outer circumference of the bonding wheel applies constant pressure to the silicone buffer layer to remove air bubbles, and its edges or a specific scraping structure clean impurities from the welding head surface. This eliminates the hassle of frequent tool changes, shortens the replacement time of the silicone buffer layer, and prevents uneven welding energy caused by residual air bubbles.

Description

Technical Field

[0001] This invention relates to the field of automotive interior processing technology, specifically to a welding device for automotive interior processing. Background Technology

[0002] In the ultrasonic welding process of automotive interior parts, in order to protect workpieces with high-gloss or textured surfaces such as dashboards and door panels from being damaged by pressure and to buffer the welding pressure, the industry generally adopts a process of attaching a high-temperature resistant silicone buffer layer to the bottom of the welding head.

[0003] Before bonding the new buffer layer, the old adhesive and dirt remaining on the welding head surface must be cleaned, otherwise the new layer will not bond evenly. During the bonding process, rollers must be used to expel the air under the buffer layer. In the traditional process, these two operations are separate. The operator first uses a scraper to clean the residual adhesive, and then changes tools to use a rubber roller to remove bubbles. This frequent tool changing operation is not only cumbersome, but also inefficient and difficult to adapt to the fast-paced mold change requirements of the automotive production line. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a welding device for automotive interior processing, comprising a base, a connecting unit, a pneumatic cylinder, a booster, and a control panel. A mold is provided at the bottom of the booster, and a connecting screw is provided at the center of the top of the mold. The booster is connected to the mold via the connecting screw, and an auxiliary mechanism is provided on the outside of the mold.

[0005] Preferably, the mold includes a connecting part, a middle part, and a welding part. The connecting part and the middle part are elastically connected. The bottom of the middle part is tenoned with the welding part. Damping plates are hinged at the center of both the front and rear sides of the middle part. A silicone buffer layer is attached to the bottom of the welding part.

[0006] Preferably, the auxiliary mechanism includes a lifting cylinder, two guide plates are provided on the outer side of the mold, the two guide plates are symmetrically arranged front and back, the outer side of the guide plates are provided with concave grooves, two connecting plates are fixedly connected between the two guide plates, the guide plate located on the front side is fixedly connected to a fixing plate, and the power output shaft of the lifting cylinder is bolted to the fixing plate.

[0007] Preferably, each of the two guide plates has a mounting plate on its opposite side, the top of the mounting plate is fixedly connected to the guide plate, and two rotating gears are hinged to the corresponding side of each of the two mounting plates, with a flip plate fixedly connected to the outside of the rotating gears.

[0008] Preferably, the inner cavity of the flip plate is provided with an annular groove, the mounting plate located on the front side is fixedly connected to a drive motor, the power output shaft of the drive motor is fixedly connected to the center of the adjacent rotating gear, two contact wheels are provided between the two guide plates, a central shaft is fixedly connected to the center of the contact wheel, a slider is sleeved on the outside of the central shaft, and the outside of the slider is in contact with the annular groove.

[0009] Preferably, two rollers are sleeved on the outer side of the central shaft, the outer side of the rollers fits into the concave groove, the top of the fitting rollers has a groove, a transmission rod is hinged to the groove, a scraper is fixedly sleeved on the outer side of the transmission rod, and a replacement gear is fixedly connected to the front end of the transmission rod.

[0010] Preferably, the scraper has a tapered bottom, and two movable cylinders are fixedly connected to the front side of the middle section. The power output of the two movable cylinders is fixedly connected to toothed plates. Two sets of limiting plates are fixedly connected to the front side of the middle section. The toothed plates are in contact with the adjacent limiting plates. A proximity trigger is installed on the front side of the middle section. The proximity trigger is located at the top of the movable cylinder.

[0011] Compared with the prior art, the beneficial effects of the present invention are: This invention integrates the two independent processes of cleaning and bubble removal into an auxiliary mechanism. As the drive motor moves the bonding wheel, the outer circumference of the bonding wheel can apply constant pressure to the silicone buffer layer to remove bubbles, and can also use its edge or a specific scraping structure to clean impurities on the surface of the welding head. This eliminates the trouble of frequently changing tools, shortens the replacement time of the silicone buffer layer, and prevents uneven welding energy caused by bubble residue. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an installation diagram of the auxiliary mechanism structure of the present invention; Figure 3 This is a schematic diagram of the auxiliary mechanism structure of the present invention; Figure 4 This is a schematic diagram of the mold structure of the present invention; Figure 5 This is a plan view of the mold structure of the present invention; Figure 6 This is a schematic diagram of the bonding wheel structure of the present invention; Figure 7 This is a schematic diagram of the scraper structure of the present invention; Figure 8 for Figure 4 Enlarged view of point A in the middle; Figure 9 for Figure 6 Enlarged view at point B in the middle; Figure 10 for Figure 7 Enlarged view of point C.

[0013] The following components are labeled in the diagram: 1. Base; 2. Control panel; 3. Connecting unit; 4. Pneumatic cylinder; 5. Lifting cylinder; 6. Booster; 7. Connecting screw; 8. Connecting part; 9. Guide plate; 10. Connecting plate; 11. Middle part; 12. Welding part; 13. Damping plate; 14. Flipping plate; 15. Rotating gear; 16. Fixing plate; 17. Mounting plate; 18. Drive motor; 19. Slider; 20. Central shaft; 21. Roller; 22. Adhesion wheel; 23. Scraper; 24. Replacement gear; 25. Transmission rod; 26. Movable cylinder; 27. Toothed plate; 28. Limiting plate. Detailed Implementation

[0014] Please see Figure 1-10 The present invention provides a technical solution: A welding device for automotive interior processing includes a base 1, a connecting unit 3, a pneumatic cylinder 4, a booster 6, and a control panel 2. A mold is provided at the bottom of the booster 6, and a connecting screw 7 is provided at the center of the top of the mold. The booster 6 is connected to the mold through the connecting screw 7. An auxiliary mechanism is provided on the outside of the mold. The mold includes a connecting part 8, a middle part 11, and a welding part 12. The connecting part 8 and the middle part 11 are elastically connected. The bottom of the middle part 11 is tenoned with the welding part 12. Damping plates 13 are hinged at the center of both the front and rear sides of the middle part 11. A silicone buffer layer is attached to the bottom of the welding part 12.

[0015] The auxiliary mechanism includes a lifting cylinder 5, two guide plates 9 are provided on the outside of the mold, the two guide plates 9 are symmetrically arranged front and back, and the outer side of the guide plates 9 has a concave groove. Two connecting plates 10 are fixedly connected between the two guide plates 9. The guide plate 9 on the front side is fixedly connected to a fixing plate 16. The power output shaft of the lifting cylinder 5 is bolted to the fixing plate 16. The opposite sides of the two guide plates 9 are provided with mounting plates 17. The top of the mounting plates 17 is fixedly connected to the guide plates 9. The corresponding sides of the two mounting plates 17 are hinged with two rotating gears 15. The outer side of the rotating gears 15 is fixedly connected to a flipping plate 14. The inner cavity of the flipping plate 14 has an annular groove. The mounting plate 17 on the front side is fixedly connected to a drive motor 18. The power output shaft of the drive motor 18 is fixedly connected to the center of the adjacent rotating gear 15. Two contact wheels 22 are provided between the two guide plates 9. A central shaft 20 is fixedly connected to the center of the contact wheels 22. A slider 19 is sleeved on the outer side of the central shaft 20. The outer side of the slider 19 is in contact with the annular groove.

[0016] Two rollers 21 are sleeved on the outer side of the central shaft 20. The outer side of the rollers 21 fits into the concave groove. The top of the fitting roller 22 has a groove. The groove is hinged to the transmission rod 25. A scraper 23 is fixedly sleeved on the outer side of the transmission rod 25. A replacement gear 24 is fixedly connected to the front end of the transmission rod 25. The bottom of the scraper 23 is tapered. Two movable cylinders 26 are fixedly connected to the front side of the middle part 11. The power output of the two movable cylinders 26 is fixedly connected to the toothed plates 27. Two sets of limiting plates 28 are fixedly connected to the front side of the middle part 11. The toothed plates 27 fit into the adjacent limiting plates 28. A proximity trigger is installed on the front side of the middle part 11. The proximity trigger is located at the top of the movable cylinders 26.

[0017] Working principle: When the welding part 12 needs to be installed on the middle part 11, the welding part 12 can be directly tenoned to the middle part 11, and the damping plate 13 can be rotated to fix the front and rear sides of the welding part 12. When it is necessary to remove the air bubbles in the silicone buffer layer at the bottom of the welding part 12, the drive motor 18 can be started to drive the adjacent rotating gear 15 to rotate. When the rotating gear 15 rotates, it can drive another rotating gear 15 to rotate. When the two rotating gears 15 rotate, they can drive the two flipping plates 14 to flip. When the two flipping plates 14 flip, the slider 19 can drive the two rollers 21 to move. When the rollers 21 move, they can move along the concave groove. At this time, the two bonding wheels 22 move in opposite L-shapes and adhere to the bottom of the silicone buffer layer to press the air bubbles. When the two flip plates 14 flip, the drive motor 18 can be turned off by approaching the trigger, so that the flip plate 14 stays in the current position. When it is necessary to clean the solvent cleaning residue on the outside of the silicone buffer layer, the movable cylinder 26 can be started through the control panel 2. When the movable cylinder 26 is started, it can drive the toothed plate 27 to move. When the toothed plate 27 moves, it can drive the replacement gear 24 to rotate. When the replacement gear 24 rotates, it can drive the scraper 23 to flip, so that the conical side of the scraper 23 faces upward, thereby cleaning the solvent cleaning residue on the outside of the silicone buffer layer.

Claims

1. A welding device for automotive interior processing, comprising a base (1), a connecting unit (3), a pneumatic cylinder (4), a booster (6), and a control panel (2), characterized in that: The booster (6) has a mold at its bottom and a connecting screw (7) at the center of the top of the mold. The booster (6) is connected to the mold via the connecting screw (7). An auxiliary mechanism is provided on the outside of the mold.

2. The welding apparatus for automotive interior processing according to claim 1, characterized in that: The mold includes a connecting part (8), a middle part (11) and a welding part (12). The connecting part (8) and the middle part (11) are elastically connected. The bottom of the middle part (11) is tenoned with the welding part (12). Damping plates (13) are hinged at the center of the front and rear sides of the middle part (11). A silicone buffer layer is attached to the bottom of the welding part (12).

3. The welding apparatus for automotive interior processing according to claim 2, characterized in that: The auxiliary mechanism includes a lifting cylinder (5), and two guide plates (9) are provided on the outside of the mold. The two guide plates (9) are symmetrically arranged front and back. A concave groove is opened on the outside of the guide plate (9). Two connecting plates (10) are fixedly connected between the two guide plates (9). A fixing plate (16) is fixedly connected to the guide plate (9) located on the front side. The power output shaft of the lifting cylinder (5) is bolted to the fixing plate (16).

4. The welding apparatus for automotive interior processing according to claim 3, characterized in that: Each of the two guide plates (9) is provided with a mounting plate (17) on one side opposite to each other. The top of the mounting plate (17) is fixedly connected to the guide plate (9). Each of the two mounting plates (17) is hinged to a rotating gear (15) on one side opposite to each other. A flip plate (14) is fixedly connected to the outside of the rotating gear (15).

5. The welding apparatus for automotive interior processing according to claim 4, characterized in that: The inner cavity of the flip plate (14) is provided with an annular groove. The mounting plate (17) located on the front side is fixedly connected to a drive motor (18). The power output shaft of the drive motor (18) is fixedly connected to the center of the adjacent rotating gear (15). Two contact wheels (22) are provided between the two guide plates (9). A central shaft (20) is fixedly connected to the center of the contact wheel (22). A slider (19) is sleeved on the outside of the central shaft (20). The outside of the slider (19) is in contact with the annular groove.

6. The welding apparatus for automotive interior processing according to claim 5, characterized in that: Two rollers (21) are sleeved on the outside of the central shaft (20). The outside of the rollers (21) fits against the concave groove. The top of the fitting roller (22) has a groove. A transmission rod (25) is hinged to the groove. A scraper (23) is fixedly sleeved on the outside of the transmission rod (25). A replacement gear (24) is fixedly connected to the front end of the transmission rod (25).

7. The welding apparatus for automotive interior processing according to claim 6, characterized in that: The scraper (23) has a tapered bottom. Two movable cylinders (26) are fixedly connected to the front side of the middle part (11). The power output of the two movable cylinders (26) is fixedly connected to toothed plates (27). Two sets of limiting plates (28) are fixedly connected to the front side of the middle part (11). The toothed plates (27) are in contact with the adjacent limiting plates (28). A proximity trigger is installed on the front side of the middle part (11). The proximity trigger is located at the top of the movable cylinder (26).

Images