A locking and resetting mechanism for automobile water-cutting bending die

Abstract

The present invention relates to a locking and resetting mechanism for a water-cutting bending die for automobiles, comprising a horizontal push-pull cylinder, an oil cylinder and a slider, wherein the horizontal push-pull cylinder is arranged horizontally, and a slider is installed on its main shaft, and an oil cylinder with a main shaft facing upward and arranged vertically is arranged on the slider, and an upper and lower guide seat is arranged above the horizontal push-pull cylinder, and upper and lower guide blocks that move up and down are installed in the upper and lower guide seats, and the main shaft of the oil cylinder is connected to the guide block, and a locking notch is arranged at the upper end of the guide block, and a lower die docking part is installed in the locking notch, and a lower die insert connected to the guide block at the front and rear sides is arranged at the upper end of the lower die docking part. The present invention has the advantages of avoiding the upper die driving the lower die to cause product correction, improving product quality, improving the connection strength of the lower die core, and ensuring the service life of the connection.

Description

Technical Field

[0001] The invention relates to the technical field of water shear bending and locking, in particular to a locking and resetting mechanism for a water shear bending die of an automobile. Background Art

[0002] In the production process of automobile water-cutting bending process, the product is placed on the bending lower die, and the bending upper die moves downward to close the lower die first, then moves downward with the lower die, and contacts with all the lower die support blocks in turn to complete the product bending; then the upper die moves upward under the action of external force, and at this time the lower die also resets upward under the action of bending internal stress. In this state of synchronous reset of the upper and lower dies, the product that has been bent in the die will be deformed, resulting in unqualified products. At the same time, the core in the bending lower die is made of non-metallic material, and the lower die core needs to move relative to the locking and reset mechanism. At this time, the connection problem of the lower die core is generated. It is necessary to ensure that the non-metallic lower die core is firmly connected and the connection has a long service life. In order to solve the above problems, it is very necessary to design a locking and reset mechanism. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a locking and resetting mechanism for an automobile water-cutting bending die, which has the advantages of avoiding the upper die driving the lower die and causing product correction, improving product quality, increasing the connection strength of the lower die core, and ensuring the service life of the connection.

[0004] The technical solution adopted by the present invention to solve its technical problems is: to provide a locking and resetting mechanism for an automobile water-cutting bending die, comprising a horizontal push-pull cylinder, an oil cylinder and a slider, wherein the horizontal push-pull cylinder is arranged horizontally, and a slider is installed on its main shaft, and an oil cylinder with a main shaft facing upward and arranged vertically is arranged on the slider, and an upper and lower guide seat is arranged above the horizontal push-pull cylinder, and upper and lower guide blocks that move up and down are installed in the upper and lower guide seats, the main shaft of the oil cylinder is connected to the guide block, and a locking notch is arranged at the upper end of the guide block, and a lower die docking part is installed in the locking notch, and a lower die insert connected to the guide block at the front and rear sides is arranged at the upper end of the lower die docking part.

[0005] As a supplement to the technical solution, a base corresponding to the slider is provided on one side of the main shaft end of the horizontal push-pull cylinder, and two ribs arranged side by side are provided at the front and rear parts of the upper end face of the base, and the slider is arranged between the ribs.

[0006] As a supplement to the technical solution, upper and lower cylinders with push rods facing upward are arranged under the base, and the main shafts of the upper and lower cylinders are provided with stop blocks for inserting slide blocks.

[0007] As a supplement to the present technical solution, a connecting seat is provided on the side of the guide block close to the oil cylinder, an arc-shaped groove is provided at the end of the connecting seat, and a docking column with a circle of grooves in the middle is provided on the top rod of the oil cylinder, and the groove of the docking column matches and docks with the arc-shaped groove of the connecting seat.

[0008] As a supplement to the technical solution, a positioning groove is provided in the middle of the front and rear sides of the lower mold insert, and a mold core locking and resetting pin inserted into the positioning groove is provided at the upper end of the guide block.

[0009] As a supplement to the technical solution, the lower mold insert is provided with no less than two transverse docking holes.

[0010] As a supplement to the technical solution, a longitudinal force-bearing boss is provided on the lower mold docking portion.

[0011] Beneficial effects: The present invention relates to a locking and resetting mechanism for a water-cutting bending die for automobiles. By setting an oil cylinder and controlling a guide block through the oil cylinder, the upper die is prevented from driving the lower die to move when it moves upward, and the bent product is prevented from being corrected by the lower die. At the same time, a locking notch and a lower die docking portion are provided, so that the non-metallic lower die can dock with the locking structure, thus avoiding damage to the lower die structure and increasing the service life of the lower die. At the same time, a horizontal push-pull cylinder is provided to facilitate replacement of the bending die. The present invention has the advantages of avoiding the upper die driving the lower die to cause product correction, improving product quality, increasing the connection strength of the lower die core, and ensuring the service life of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural view of the present invention;

[0013] Figure 2 It is the front view when the present invention is used;

[0014] Figure 3 The present invention Figure 2 Section view in the AA direction;

[0015] Figure 4 It is a structural view of the present invention when it is used;

[0016] Figure 5 It is a top view of the present invention when in use;

[0017] Figure 6 It is a structural view of the lower mold docking portion described in the present invention.

[0018] Illustration: 1. Mounting table, 2. Product placement table, 3. Upper and lower guide seats, 4. Bending lower die, 5. Product, 6. Bending upper die, 7. Horizontal push-pull cylinder, 8. Upper and lower cylinders, 9. Oil cylinder, 10. Base, 11. Side rib, 11. Positioning bushing, 12. Slider, 13. Guide block, 14. Connecting seat, 15. Docking column, 16. Locking notch, 17. Core locking reset pin, 18. Lower die insert, 19. Lower die docking part, 20. Connecting hole, 21. Force boss, 22. Stop block. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0020] The specific implementation of the locking and resetting mechanism of a water-cutting bending die for automobiles described in the technical solution is as follows: Figure 1 —2, it includes a horizontal push-pull cylinder 7, an oil cylinder 9 and a slider 12. The horizontal push-pull cylinder 7 is arranged horizontally, and a slider 12 is installed on its main shaft. The slider 12 is provided with an oil cylinder 9 with its main shaft facing upward and arranged vertically. An upper and lower guide seat 3 is arranged above the horizontal push-pull cylinder 7. An upper and lower guide block 13 that moves up and down is installed in the upper and lower guide seat 3. The main shaft of the oil cylinder 9 is connected to the guide block 13. A locking notch 16 is provided at the upper end of the guide block 13. A lower mold docking part 19 is installed in the locking notch 16. A lower mold insert 18 connected to the guide block 13 at the front and rear sides is provided at the upper end of the lower mold docking part 19.

[0021] In the present technical scheme, mainly in order to avoid the upper bending die 6 and the lower bending die 4 from moving upward during the demolding process, so that the product 5 is corrected and the shape of the product is changed, an oil cylinder 9 is set to lock and position the lower bending die 4. During the operation, after the upper bending die 6 and the lower bending die 4 complete the bending of the product 5, the mold is opened and the upper bending die 6 moves upward. At this time, the oil cylinder 9 is in a contracted state, and the locking force is provided to the oil cylinder 9 through the solenoid valve, so that the upper bending die 6 will not drive the lower bending die when it moves upward. After completion, the solenoid valve is opened and the oil cylinder 9 is controlled to extend the main shaft. At this time, the product 5 is separated from the lower bending die 4, and then the product 5 is replaced and the next bending operation is performed.

[0022] At the same time, since the lower bending die 4 is made of non-metallic materials, the lower bending die 4 is often damaged due to multiple demolding during connection. In order to improve the connection strength of the lower bending die 4 and avoid damage to the lower bending die 4, lower die docking parts 19 are provided on both ends of the lower bending die 4. The lower die docking parts 19 are inserted into the locking notch 16 and fixed by the lower die insert 18. When the structure is reset, locked and bent, the main force-bearing parts at the end of the lower bending die 4 are mainly composed of the lower die insert 18, which greatly protects the structure of the lower bending die 4 and improves its service life.

[0023] When replacing the mold, first open the upper and lower cylinders 8 to shrink the main shafts of the upper and lower cylinders 8 and disengage the stop block 22 from the slider 12. Then start the horizontal push-pull cylinder 7, which disengages the main shaft of the oil cylinder 9 from the upper and lower guide blocks 13. Then replace the bending mold and start the horizontal push-pull cylinder 7 again to shrink the main shaft of the horizontal push-pull cylinder 7. At the same time, start the upper and lower cylinders 8 so that the stop block 22 on the main shaft of the upper and lower cylinders 8 is inserted into the slider 12 again to complete the locking.

[0024] As a supplement to the present technical solution, a base 10 corresponding to a slider 12 is provided on one side of the main shaft end of the horizontal push-pull cylinder 7, and two ribs 11 arranged side by side are provided at the front and rear parts of the upper end of the base 10, and the slider 12 is arranged between the ribs 11.

[0025] As a supplement to the present technical solution, an upper and lower cylinder 8 with a push rod facing upward is arranged below the base 10, and a stop block 22 for inserting the slider 12 is arranged on the main shaft of the upper and lower cylinder 8.

[0026] As a supplement to the present technical solution, a connecting seat 14 is provided on the side of the guide block 13 close to the oil cylinder 9, an arc-shaped groove is provided at the end of the connecting seat 14, and a docking column 15 with a circle of grooves arranged in the middle is provided on the top rod of the oil cylinder 9, and the groove of the docking column 15 matches and docks with the arc-shaped groove of the connecting seat 14.

[0027] As a supplement to the present technical solution, a positioning groove is provided in the middle of the front and rear sides of the lower mold insert 18, and a core locking and resetting pin 17 inserted into the positioning groove is provided at the upper end of the guide block 13.

[0028] As a supplement to the present technical solution, the lower die insert 18 is provided with no less than two transverse docking holes, and the docking holes of the lower die insert 18 are aligned with the connecting holes 20 on the end of the bent lower die 4, and then locked and fixed by screws.

[0029] As a supplement to the present technical solution, a longitudinal force-bearing boss 21 is arranged on the lower die docking portion 19. By arranging the force-bearing boss 21 and arranging a docking groove matching the force-bearing boss 21 on the lower die insert 18, the stress borne by the bending lower die 4 during movement is concentrated on the lower die insert 18, thereby avoiding damage to the bending lower die 4.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner without departing from the scope defined by the spirit of the present invention.

Claims

1. A locking and resetting mechanism for automobile water-cutting bending die, Features: The invention comprises a horizontal push-pull cylinder (7), an oil cylinder (9) and a slider (12); the horizontal push-pull cylinder (7) is arranged horizontally, and a slider (12) is installed on its main shaft; the slider (12) is provided with an oil cylinder (9) with its main shaft facing upward and arranged vertically; an upper and lower guide seat (3) is arranged above the horizontal push-pull cylinder (7); an upper and lower guide block (13) movable up and down is installed in the upper and lower guide seat (3); the main shaft of the oil cylinder (9) is connected to the guide block (13); a locking notch (16) is arranged at the upper end of the guide block (13); a lower die docking part (19) is installed in the locking notch (16); a lower die insert (18) connected to the guide block (13) at the front and rear sides is arranged at the upper end of the lower die docking part (19).

2. According to claim 1, a locking and resetting mechanism for a water-cutting bending die for automobiles, Features: A base (10) corresponding to the slider (12) is arranged on one side of the main shaft end of the horizontal push-pull cylinder (7), and two sidewalls (11) arranged side by side are arranged at the front and rear parts of the upper end face of the base (10), and the slider (12) is arranged between the sidewalls (11).

3. According to claim 2, a locking and resetting mechanism for a water-cutting bending die for automobiles, Features: An upper and lower cylinder (8) with a push rod facing upward is arranged below the base (10), and a stop block (22) for inserting a slide block (12) is arranged on the main shaft of the upper and lower cylinder (8).

4. According to claim 1, a locking and resetting mechanism for a water-cutting bending die for automobiles, Features: The guide block (13) is provided with a connecting seat (14) on one side close to the oil cylinder (9), and an arc-shaped groove is provided at the end of the connecting seat (14). The top rod of the oil cylinder (9) is provided with a docking column (15) with a circle of grooves arranged in the middle, and the groove of the docking column (15) is matched with the arc-shaped groove of the connecting seat (14) for docking.

5. According to claim 1, a locking and resetting mechanism for a water-cutting bending die for automobiles, Features: The middle parts of the front and rear sides of the lower mold insert (18) are provided with positioning grooves, and the upper end of the guide block (13) is provided with a mold core locking and resetting pin (17) inserted into the positioning grooves.

6. The locking and resetting mechanism for the automobile water-cutting bending die according to claim 1, Features: The lower mold insert (18) is provided with no less than two transverse docking holes.

7. The locking and resetting mechanism for the automobile water-cutting bending die according to claim 1, Features: A longitudinal force-bearing boss (21) is arranged on the lower die docking portion (19).

Images