Automobile door stamping die

Abstract

The invention discloses an automobile door stamping die, and particularly relates to the technical field of stamping dies, the automobile door stamping die comprises a shell, a supporting column is further arranged on the upper surface of the shell, a mounting frame is arranged on the upper surface of the supporting column, a lifting air cylinder is arranged above the mounting frame, and a limiting mechanism is arranged at the bottom of the lifting air cylinder; the limiting mechanism comprises an upper pressing disc, connecting sheaths are arranged on the surfaces of the two sides of the upper pressing disc, and compression springs are arranged in the connecting sheaths. The cutting mechanism comprises a cutting machine, a connecting plate is arranged on the bottom face of the cutting machine, and a sliding block is arranged on the surface of one side of the connecting plate. According to the scheme, the limiting mechanism and the cutting mechanism are arranged, so that the stability of a stamping part can be kept during stamping, and the stamping part is cut through downward pressing movement; and the effects of improving the precision of finished products, reducing the workload and improving the production efficiency are achieved.

Description

Technical Field

[0001] The present invention relates to the field of stamping dies, and particularly to a stamping die for automobile doors. Background Art

[0002] A stamping die for automobile doors is a production tool for extruding and forming automobile doors during their preparation and production. By using the stamping die, the arcs and holes applied on the automobile doors are prepared, facilitating the installation and use of the automobile doors.

[0003] However, when the existing stamping die for automobile doors is used for stamping and forming automobile doors, the stamped parts are prone to collide and form slight misalignment when contacting the upper and lower dies due to the relatively fast descending speed of the dies. Moreover, after a stamped part is made into two door parts, a cutting process needs to be carried out on the stamped part again, which is time-consuming and affects work efficiency. Summary of the Invention

[0004] Technical problems to be solved:

[0005] Aiming at the deficiencies of the prior art, the present invention provides a stamping die for automobile doors, which solves the problems mentioned in the background art.

[0006] Technical solutions:

[0007] A stamping die for automobile doors includes: a housing, a groove is formed on the upper surface of the housing, a lower pressing plate is arranged inside the groove, a lower pressing die is arranged on the upper surface of the lower pressing plate, lower clamping blocks are arranged on both sides of the lower pressing die, support columns are also arranged on the upper surface of the housing, an installation frame is arranged on the upper surface of the support columns, a lifting cylinder is arranged above the installation frame, and a limiting mechanism is arranged at the bottom of the lifting cylinder; the limiting mechanism includes: an upper pressing plate, connecting sheaths are arranged on both side surfaces of the upper pressing plate, a compression spring is arranged inside the connecting sheaths, an opening is formed on the bottom surface of the connecting sheaths, and a connecting block is arranged inside the opening, an upper clamping block is arranged on the bottom surface of the connecting block, and an upper pressing die is arranged on the bottom surface of the upper pressing plate; a cutting mechanism, a cutting machine, a connecting plate is arranged on the bottom surface of the cutting machine, a slider is arranged on one side surface of the connecting plate, a pushing member is arranged on one side of the slider, a threaded hole is formed in the center of the slider and meshes with a threaded rod, one end of the threaded rod is arranged on the output shaft of a motor, the connection between the threaded rod and the motor penetrates through one side surface of the pushing member, trigger plates are arranged on both sides of the cutting machine, a connecting shell is arranged between the two trigger plates, and trigger buttons are arranged on the surfaces of the two trigger plates adjacent to the cutting machine.

[0008] Preferably, a main cutting seam is provided on the upper surface of the lower pressing die, a secondary cutting seam corresponding to the main cutting seam is formed on the bottom surface of the upper pressing die, the main cutting seam penetrates through the center of the lower pressing plate and corresponds to the position of the cutting disc above the cutting machine, and the widths of the main cutting seam and the secondary cutting seam are greater than the width of the cutting disc above the cutting machine.

[0009] Preferably, a cavity is formed inside the housing, a mounting plate is provided on the inner bottom surface of the cavity, four main spring columns and two partition plates are provided on the upper surface of the mounting plate, the other ends of the main spring columns and the partition plates are connected to the bottom surface of the lower pressing plate, and the trigger plate is located on the upper surface of the mounting plate and between the two partition plates.

[0010] Preferably, two secondary spring columns are provided on the bottom surface of the cutting machine, a limiting plate is arranged between the two secondary spring columns, and the other sides of the limiting plate and the secondary spring columns connected to the cutting machine are both connected to the upper surface of the limiting plate.

[0011] Preferably, a chute is formed on the upper surface of the pushing member, a through groove is formed on one side surface of the chute, the threaded rod is located inside the chute, a fixing plate is arranged on one side surface of the pushing member, and the motor is located on the upper surface of the fixing plate.

[0012] Preferably, a plurality of positioning columns are provided on the upper surface of the lower pressing plate, the positioning columns are located on both sides of the lower pressing die, and positioning grooves matched with the positioning columns are formed on the bottom surface of the upper pressing plate.

[0013] Preferably, a wire groove is formed inside the connecting shell, the cable connects the two groups of trigger buttons through the wire groove and is electrically connected to the motor through the wire hole formed on one side of the connecting shell.

[0014] Preferably, a fixing frame is provided on the upper surface of the mounting frame, a mounting opening is formed at the center of the fixing frame, and the lifting cylinder is located inside the mounting opening.

[0015] Preferably, four stabilizing columns are further provided on the upper surface of the housing, the other ends of the stabilizing columns are connected to the bottom surface of the upper pressing plate, a base is arranged on the bottom surface of the housing, and four suction cups are arranged on the bottom surface of the base.

[0016] In the above technical solution, the technical effects provided by the present invention are:

[0017] (1) By setting a finite position mechanism, when in use, the force generated by the lifting cylinder driving the upper pressure plate to descend can be utilized. Taking advantage of the fact that the upper clamping block and the lower clamping block come into contact earlier than the upper pressing die and the lower pressing die, the upper clamping block first contacts the stamping part. The compression spring can unload the force during contact, prevent the stamping part from shifting, and gradually strengthen the downward pressure under the influence of the force generated by the downward pressing of the upper pressure plate to fix the stamping part. As the upper pressure plate further descends, the fixing effect can be gradually improved, achieving the prevention of the stamping part from being prone to shifting after being directly collided.

[0018] (2) By setting a cutting mechanism, after the upper pressure plate forms a downward pressure on the lower pressure plate, when the lower pressure plate uses the main spring column for buffering, taking advantage of the characteristic of the lower pressure plate descending, the cutting machine passes through the main cutting seam to cut the stamping part, and by triggering the button of the cutting machine, the cutting machine can perform reciprocating cutting, which can effectively improve the cutting efficiency and expand the cutting surface. The cutting effect can improve the working efficiency during the processing of the stamping part, achieving the effect of increasing the output. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Isometric view of the present invention;

[0021] Figure 2 Schematic diagram of the internal structure of the present invention;

[0022] Figure 3 Schematic diagram of the structure of the driving part of the present invention;

[0023] Figure 4 Schematic diagram of the structure of the cutting machine of the present invention;

[0024] Figure 5 Schematic diagram of the structure of the trigger plate of the present invention;

[0025] Figure 6 Schematic diagram of the structure of the upper pressure plate of the present invention;

[0026] Figure 7 Schematic diagram of the structure of the lower pressure plate of the present invention;

[0027] Figure 8 Schematic diagram of the structure of the mounting bracket of the present invention;

[0028] Figure 9 Schematic diagram of the structure of the connecting sheath of the present invention.

[0029] Description of the reference numerals in the drawings:

[0030] 1. Housing; 2. Base; 3. Suction cup; 4. Support column; 5. Mounting bracket; 6. Fixed bracket; 7. Lifting cylinder; 8. Upper pressure plate; 9. Upper pressing die; 10. Stabilizing column; 11. Lower pressing die; 12. Positioning column; 13. Main cutting seam; 14. Upper clamping block; 15. Lower clamping block; 16. Connecting block; 17. Main spring column; 18. Partition board; 19. Mounting plate; 20. Pushing member; 21. Cutting machine; 22. Trigger plate; 23. Threaded rod; 24. Slide block; 25. Fixed plate; 26. Motor; 27. Through groove; 28. Connecting plate; 29. Limiting plate; 30. Auxiliary spring column; 31. Connecting shell; 32. Trigger button; 33. Positioning groove; 34. Auxiliary cutting seam; 35. Installation opening; 36. Connecting sheath; 37. Compression spring; 38. Lower pressure plate. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0032] The present invention provides a Figures 1-9 shown automotive door stamping die, comprising: a housing 1, a groove is formed on the upper surface of the housing 1, a lower pressure plate 38 is arranged inside the groove, an upper pressing die 11 is arranged on the upper surface of the lower pressure plate 38, lower clamping blocks 15 are arranged on both sides of the upper pressing die 11, a support column 4 is further arranged on the upper surface of the housing 1, a mounting bracket 5 is arranged on the upper surface of the support column 4, a lifting cylinder 7 is arranged above the mounting bracket 5, and a limiting mechanism is arranged at the bottom of the lifting cylinder 7;

[0033] The limiting mechanism includes:

[0034] an upper pressure plate 8, connecting sheaths 36 are arranged on both side surfaces of the upper pressure plate 8, a compression spring 37 is arranged inside the connecting sheaths 36, an opening is formed at the bottom surface of the connecting sheaths 36, and a connecting block 16 is arranged inside the opening, an upper clamping block 14 is arranged at the bottom surface of the connecting block 16, and an upper pressing die 9 is arranged at the bottom surface of the upper pressure plate 8;

[0035] a cutting mechanism, the cutting mechanism includes:

[0036] Cutting machine 21, a connecting plate 28 is provided on the bottom surface of the cutting machine 21, a slider 24 is provided on one side surface of the connecting plate 28, a pushing member 20 is provided on one side of the slider 24, a threaded hole is formed in the center of the slider 24 and meshes with a threaded rod 23, one end of the threaded rod 23 is provided on the output shaft of a motor 26, and the connection between the threaded rod 23 and the motor 26 penetrates through one side surface of the pushing member 20. Trigger plates 22 are provided on both sides of the cutting machine 21, a connecting shell 31 is provided between the two trigger plates 22, and trigger buttons 32 are provided on the surfaces of the two trigger plates 22 adjacent to the cutting machine 21.

[0037] In some examples, a main cutting seam 13 is provided on the upper surface of the lower pressing die 11, a secondary cutting seam 34 corresponding to the main cutting seam 13 is formed on the bottom surface of the upper pressing die 9. The main cutting seam 13 penetrates through the center of the lower pressing plate 38 and corresponds to the position of the cutting disc above the cutting machine 21. The widths of the main cutting seam 13 and the secondary cutting seam 34 are greater than the width of the cutting disc above the cutting machine 21.

[0038] During use, by placing the stamping part above the lower die 11 so that both ends of the stamping part are above the lower clamping blocks 15 on both sides of the lower die 11, the lifting cylinder 7 is used to drive the upper platen 8 to descend. During the descent, the stabilizing column 10 contracts under the downward pressure to ensure that the upper platen 8 does not shift in position during descent. During the descent of the upper platen 8, the upper clamping blocks 14 on both sides of the upper platen 8 first come into contact with the surface of the stamping part above the lower clamping blocks 15. During the downward pressing of the upper platen 8, the compression spring 37 inside the connecting sheath 36 is compressed and contracts, driving the connecting block 16 to retract into the connecting sheath 36. After the compression spring 37 contracts to a certain extent and can no longer contract, the force generated by the downward pressing of the upper platen 8 is transmitted to the upper clamping block 14, and the two sides of the stamping part are clamped through the squeezing effect between the upper clamping block 14 and the lower clamping block 15. As the upper platen 8 descends, the clamping effect of the upper clamping block 14 on the stamping part becomes stronger, effectively preventing the stamping part from being displaced due to the extrusion of the upper die 9. After the upper platen 8 descends to the bottom and contacts the stamping part, the main spring column 17 below the lower platen 38 is stressed and contracts a certain distance to buffer the impact force on the upper platen 8, and the motor 26 drives the threaded rod 23 to rotate, causing the slider 24 to slide inside the threaded rod 23 due to meshing, driving the cutting machine 21 to move. When the lower platen 38 descends as the upper platen 8 is pressed downward, the cutting disc above the cutting machine 21 cuts the stamping part through the main cutting seam 13, cutting the whole stamping part into two door parts. The secondary cutting seam 34 can avoid the cutting surface of the cutting disc during the cutting process to prevent the cutting disc from damaging the upper die 9. When the slider 24 drives the cutting machine 21 to move and cut, the cutting machine 21 moves and impacts the trigger plates 22 on both sides for positioning, and the trigger button 32 is triggered during the collision. Through the electrical connection between the trigger button 32 and the motor 26, the motor 26 drives the threaded rod 23 to reverse. By moving the cutting machine 21 and triggering the trigger buttons 32 on both sides, the slider 24 is used to drive the cutting machine 21 to reciprocate, achieving the effects of improving the cutting efficiency and expanding the cutting surface.

[0039] In some examples, a cavity is provided inside the housing 1, and an installation plate 19 is provided on the inner bottom surface of the cavity. Four main spring columns 17 and two partition plates 18 are provided on the upper surface of the installation plate 19. The other ends of the main spring columns 17 and the partition plates 18 are connected to the bottom surface of the lower platen 38. The trigger plates 22 are located on the upper surface of the installation plate 19 and are between the two partition plates 18;

[0040] Specifically, by using the four main spring columns 17, the impact force caused by the descent of the upper platen 8 on the lower platen 38 can be buffered to protect the service life of the equipment, and after the stamping is completed, it can assist the lower platen 38 to reset. The partition plates 18 can protect the internal cutting mechanism and prevent damage to the internal parts.

[0041] In some examples, two auxiliary spring columns 30 are provided on the bottom surface of the cutting machine 21, a limiting plate 29 is provided between the two auxiliary spring columns 30, and the other sides of the limiting plate 29 and the auxiliary spring columns 30 connected to the cutting machine 21 are both connected to the upper surface of the limiting plate 29;

[0042] Specifically, the cutting machine 21 can utilize the two auxiliary spring columns 30 on the bottom surface to buffer when contacting the stamping part, avoiding damage to the cutting disc caused by direct collision with the stamping part.

[0043] In some examples, a chute is provided on the upper surface of the pushing member 20, a through groove 27 is provided on one side surface of the chute, the threaded rod 23 is located inside the chute, a fixing plate 25 is provided on one side surface of the pushing member 20, and the motor 26 is located on the upper surface of the fixing plate 25;

[0044] Specifically, by driving the threaded rod 23 to rotate inside the chute through the motor 26 and engaging the threaded rod 23 with the slider 24, the effect of driving the cutting machine 21 to move can be achieved.

[0045] In some examples, a plurality of positioning columns 12 are provided on the upper surface of the lower pressing plate 38, the positioning columns 12 are located on both sides of the lower pressing die 11, and positioning grooves 33 matching the positioning columns 12 are provided on the bottom surface of the upper pressing plate 8;

[0046] Specifically, through the matching effect of the positioning columns 12 and the positioning grooves 33, when the installation positions of the upper pressing die 9 and the lower pressing die 11 deviate, it can be restricted in time during the downward pressing process, preventing the finished product from not meeting the expected effect due to die offset.

[0047] In some examples, a wire groove is provided inside the connecting shell 31, the wire harness connects the two groups of trigger buttons 32 through the wire groove, and is electrically connected to the motor 26 through a wire hole provided on one side of the connecting shell 31;

[0048] Specifically, by electrically connecting the motor 26 and the trigger buttons 32 through the wire harness, when the cutting machine 21 moves and collides with the trigger buttons 32, the motor 26 can be rotated in different directions, thereby realizing the reciprocating movement of the cutting machine 21 and improving the cutting efficiency and the cutting area.

[0049] In some examples, a fixing frame 6 is provided on the upper surface of the mounting frame 5, a mounting opening 35 is provided at the center of the fixing frame 6, and the lifting cylinder 7 is located inside the mounting opening 35;

[0050] Specifically, through the mounting frame 5 and the fixing frame 6, the lifting cylinder 7 can be fixed, ensuring strong stability when the lifting cylinder 7 drives the upper pressing plate 8 to lift and lower.

[0051] In some examples, four stabilizing columns 10 are further provided on the upper surface of the housing 1. The other ends of the stabilizing columns 10 are connected to the bottom surface of the upper pressing plate 8. A base 2 is provided on the bottom surface of the housing 1, and four suction cups 3 are provided on the bottom surface of the base 2;

[0052] Specifically, the suction cups 3 can ensure the stability of the device in the placed state, preventing the device from vibrating due to the collision between the molds during the stamping operation, which affects the stability of the stamped parts.

[0053] Through the above technical solutions:

[0054] During use, by placing the stamped part above the lower die 11, both ends of the stamped part are located above the lower clamping blocks 15 on both sides of the lower die 11. The lifting cylinder 7 is used to drive the upper pressing plate 8 to descend. During the descent, the stabilizing columns 10 are contracted under the downward pressure, so as to ensure that the upper pressing plate 8 does not shift in position during the descent. During the descent of the upper pressing plate 8, the upper clamping blocks 14 on both sides of the upper pressing plate 8 first come into contact with the surface of the stamped part above the lower clamping blocks 15. During the downward pressing of the upper pressing plate 8, the compression spring 37 inside the connecting sheath 36 is compressed and contracted, and drives the connecting block 16 to retract into the connecting sheath 36. After the compression spring 37 cannot be contracted after contracting to a certain extent, the force formed by the downward pressing of the upper pressing plate 8 is transmitted to the upper clamping block 14, and the two sides of the stamped part are clamped through the squeezing effect between the upper clamping block 14 and the lower clamping block 15. As the upper pressing plate 8 descends, the clamping effect of the upper clamping block 14 on the stamped part is stronger, which can effectively prevent the stamped part from being displaced due to the extrusion of the upper die 9. After the upper pressing plate 8 descends to the bottom and contacts the stamped part, the main spring column 17 below the lower pressing plate 38 is stressed and contracted by a certain distance to buffer the impact force formed on the upper pressing plate 8, and the motor 26 is driven to rotate the threaded rod 23, so that the slider 24 slides inside the threaded rod 23 due to meshing, driving the cutting machine 21 to move. When the lower pressing plate 38 descends as the upper pressing plate 8 is pressed downward, the cutting disc above the cutting machine 21 cuts the stamped part through the main cutting seam 13, cutting the whole stamped part into two door parts. The secondary cutting seam 34 can avoid the cutting surface of the cutting disc during the cutting process, preventing the cutting disc from damaging the upper die 9. When the slider 24 drives the cutting machine 21 to move and cut, the cutting machine 21 is limited by moving and hitting the trigger plates 22 on both sides, and the trigger button 32 is triggered during the collision. Through the electrical connection between the trigger button 32 and the motor 26, the motor 26 is driven to reverse the threaded rod 23. By moving the cutting machine 21 and triggering the trigger buttons 32 on both sides, the slider 24 is used to drive the cutting machine 21 to move reciprocally, achieving the effects of improving the cutting efficiency and expanding the cutting surface.

[0055] Only some exemplary embodiments of the present invention have been described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automotive door stamping die, characterized in that: Comprising: A housing (1), on the upper surface of which there is a groove, inside which a lower pressing plate (38) is arranged. On the upper surface of the lower pressing plate (38), a lower pressing die (11) is arranged. On both sides of the lower pressing die (11), there are lower clamping blocks (15). On the upper surface of the housing (1), there are also support columns (4). On the upper surface of the support columns (4), a mounting bracket (5) is arranged. Above the mounting bracket (5), a lifting cylinder (7) is arranged, and at the bottom of the lifting cylinder (7), a limiting mechanism is provided; The limiting mechanism includes: An upper pressing plate (8), on both side surfaces of which there are connecting sheaths (36). Inside the connecting sheaths (36), there are compression springs (37). At the bottom surface of the connecting sheaths (36), there is an opening, and inside the opening, there is a connecting block (16). At the bottom surface of the connecting block (16), there is an upper clamping block (14). At the bottom surface of the upper pressing plate (8), there is an upper pressing die (9); A cutting mechanism, which includes: A cutting machine (21), at the bottom surface of which there is a connecting plate (28). On one side surface of the connecting plate (28), there is a slider (24). On one side of the slider (24), there is a pushing member (20). In the center of the slider (24), there is a threaded hole which meshes with a threaded rod (23). One end of the threaded rod (23) is arranged on the output shaft of a motor (26). The connection between the threaded rod (23) and the motor (26) penetrates through one side surface of the pushing member (20). On both sides of the cutting machine (21), there are trigger plates (22). Between the two trigger plates (22), there is a connecting shell (31). On the surface of each of the two trigger plates (22) adjacent to the cutting machine (21), there is a trigger button (32).

2. The automotive door stamping die according to claim 1, characterized in that: On the upper surface of the lower pressing die (11), there is a main cutting seam (13). On the bottom surface of the upper pressing die (9), there is a secondary cutting seam (34) corresponding to the main cutting seam (13). The main cutting seam (13) penetrates through the center of the lower pressing plate (38) and corresponds to the position of the cutting disc above the cutting machine (21). The widths of the main cutting seam (13) and the secondary cutting seam (34) are greater than the width of the cutting disc above the cutting machine (21).

3. The automotive door stamping die according to claim 1, characterized in that: Inside the housing (1), there is a cavity. On the inner bottom surface of the cavity, there is a mounting plate (19). On the upper surface of the mounting plate (19), there are four main spring columns (17) and two partition plates (18). The other ends of the main spring columns (17) and the partition plates (18) are connected to the bottom surface of the lower pressing plate (38). The trigger plates (22) are located on the upper surface of the mounting plate (19) and between the two partition plates (18).

4. The automotive door stamping die according to claim 1, characterized in that: At the bottom surface of the cutting machine (21), there are two secondary spring columns (30). Between the two secondary spring columns (30), there is a limiting plate (29). The other sides of the limiting plate (29) and the secondary spring columns (30) connected to the cutting machine (21) are both connected to the upper surface of the limiting plate (29).

5. The automotive door stamping die according to claim 1, characterized in that: The upper surface of the pushing member (20) is provided with a sliding groove, and a through groove (27) is provided on one side surface of the sliding groove. The threaded rod (23) is located inside the sliding groove. One side surface of the pushing member (20) is provided with a fixing plate (25), and the motor (26) is located on the upper surface of the fixing plate (25).

6. The automotive door stamping die according to claim 1, wherein: The upper surface of the lower pressing plate (38) is provided with a plurality of positioning columns (12). The positioning columns (12) are located on both sides of the lower pressing die (11). The bottom surface of the upper pressing plate (8) is provided with positioning grooves (33) that cooperate with the positioning columns (12).

7. A stamping die for an automobile door according to claim 1, characterized in that: A wire groove is provided inside the connection shell (31). The wire harness connects the two groups of trigger buttons (32) through the wire groove and is electrically connected to the motor (26) through a wire hole provided on one side of the connection shell (31).

8. The stamping die for an automobile door according to claim 1, characterized in that: The upper surface of the mounting bracket (5) is provided with a fixing bracket (6). An installation opening (35) is provided at the center of the fixing bracket (6). The lifting cylinder (7) is located inside the installation opening (35).

9. The stamping die for an automobile door according to claim 1, wherein: The upper surface of the housing (1) is further provided with four stabilizing columns (10). The other ends of the stabilizing columns (10) are connected to the bottom surface of the upper pressing plate (8). The bottom surface of the housing (1) is provided with a base (2), and the bottom surface of the base (2) is provided with four suction cups (3).

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