Hook punching inclined wedge structure of oil pan punching die

Abstract

The utility model discloses a hook punching inclined wedge structure of an oil pan punching die, which comprises a supporting base and a sliding block matched with the supporting base for inclined guiding punching, a sliding base is arranged on the right side of the supporting base, and a trapezoidal embedded inclined plane is arranged on the right side face of the sliding base. A trapezoidal sliding slope matched with the sliding slope is arranged on the left side face of the sliding block, a guide limiting plate is clamped to the sliding block through a clamping groove, and a guide block on the inner side of the tail end of the guide limiting plate is located in a sliding groove in the outer side of the sliding base so as to be matched with the sliding block to obliquely slide on the sliding base; the guide limiting plate is matched with the sliding block to further limit and guide the moving stroke of the sliding block on the sliding base, so that the moving stability of the sliding block on the sliding base is improved, and meanwhile, the problem of poor product precision caused by non-rigorous matching of the sliding block and the sliding base due to abrasion generated by long-time repeated operation of the sliding block and the sliding base is solved; and the side punching yield of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing molds, and specifically relates to a hook punching inclined wedge structure of an oil pan punching die. Background Technique

[0002] In the production of automobiles, the stamping parts of the automobile body are complex in structure, and different types of holes are distributed on the automobile body, which need to be punched using molds. For the holes at different positions on the body, in the die punching process, it is generally divided into direct punching and side punching. For the side punching process, the prior art can only complete the punching on the outer side of the stamping part. For the inner punching of the stamping part, it needs to be carried out separately, which not only increases the process but also causes positioning errors, resulting in reduced punching accuracy and increased costs.

[0003] A hook-type side punching inclined wedge mechanism disclosed in the existing publication number CN106391844A includes a slider, a punch, a base, an upper die base and a lower die base. Among them, the two sides of the bottom end of the slider are respectively provided with a first inclined surface and a second inclined surface. The slider is slidably connected to the upper die base. The punch is fixedly connected to the first inclined surface, and the punch forms a negative angle with the longitudinal axis of the slider. A third inclined surface is provided on the base, and the base is fixedly connected to the lower die base. The slider can slide to make the second inclined surface cooperate with the third inclined surface.

[0004] For the above-mentioned hook-type side punching inclined wedge mechanism, although when the upper die base drives the slider to move downward until the second inclined surface contacts the third inclined surface, under the guidance of the third inclined surface, the slider will move left and right along the upper die base at the same time, so that the punch can punch the hole on the inner side of the workpiece, enabling the inner hole of the workpiece to be completed together with the overall stamping of the workpiece, reducing the subsequent process of punching the inner hole, avoiding the error caused by repositioning during subsequent punching, and improving the production efficiency and punching accuracy. However, when cooperating with the side punching of the product, the second inclined surface and the first inclined surface slide in a form of rail holding. After long-term sliding, there is a problem that the space between the first inclined surface and the second inclined surface increases due to wear, resulting in a deviation in the sliding trajectory when the second inclined surface cooperates with the slider to slide, and further causing a deviation in the punching accuracy of the product and reducing the qualified rate of product punching. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hook punching inclined wedge structure of an oil pan punching die to solve the problems proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A hook punching inclined wedge structure of an oil pan punching die includes a support base and a slider that cooperates with the support base for inclined guiding and punching. A sliding base is provided on the right side of the support base, and an embedded inclined surface in the shape of a trapezoid is provided on the right side surface of the sliding base.

[0008] The left side of the slider is provided with a trapezoidal sliding inclined surface that matches the embedded inclined surface. The sliding inclined surface supports the embedded inclined surface so that the slider slides in cooperation with the embedded inclined surface.

[0009] The slider is clamped with a guide limit plate through a clamping slot, and the guide block on the inner side of the end of the guide limit plate is located in the sliding groove outside the sliding base to cooperate with the slider to tilt and slide on the sliding base.

[0010] Furthermore, an inclined punch is provided at the top of the slider through the bottom surface of the mounting plate, and the inclination angle of the punch is consistent with the inclination angle of the embedded inclined surface and the sliding inclined surface on the slider. When the slider moves downward with the upper die base, the slider drives the punch on the mounting plate to move downward, so that the punch changes the downward movement direction of the punch as the slider cooperates with the sliding base to produce side punching on the product.

[0011] Furthermore, an inner slide seat is fixed to the inner side of the slider by a locking bolt, and a sliding bevel is provided on the left side of the inner slide seat. The inner slide seat is detachably assembled with the slider by the locking bolt. When the sliding bevel on the inner slide seat is worn and the embedded bevel becomes loose, the inner slide seat can be replaced simply, thereby reducing the cost of replacing accessories on the mold.

[0012] Furthermore, a receiving seat is provided on the left side of the support base below the punch, and a receiving groove is provided on the outer side of the receiving seat corresponding to the punch. The receiving seat receives the product punched by the punch, and receives the product after punching by the punch through the receiving groove.

[0013] Furthermore, the inner side of the guide limit plate is clamped into the groove on the outer wall of the slider through a clamping block, and the guide limit plate is fixed to the slider by screws. The guide limit plate is fixed to the slider by screws. When the slider is driven up or down, the position of the slider is limited by the guide limit plate to slide obliquely on the sliding base, ensuring that the inclination angle of the slider driven to slide by the punch moves according to the stroke, and no angle deviation will be generated, thereby improving the accuracy of the punch in punching the product.

[0014] Furthermore, the clamping blocks and the guide blocks at both ends of the inner side of the guide limit plate are U-shaped, and the guide limit plate limits and guides the sliding stroke of the slider on the sliding base.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The hook punching wedge structure of the oil pan punching die is provided with a sliding inclined surface on the inner side of the slider and an embedded inclined surface that cooperates with it and slides on the right side surface of the sliding base. The embedded inclined surface and the sliding inclined surface are trapezoidally matched for sliding. Thus, when the slider moves downward with the upper die base assembled on the top mounting plate, the slider changes its sliding trajectory through the sliding inclined surface and the embedded inclined surface, causing the slider to move downward obliquely relative to the punch, thereby achieving the purpose of obliquely punching the product received on the sliding base and improving the stability of side punching of the product.

[0017] A guiding and limiting plate that cooperates with the chute on the outer side surface of the sliding base is arranged on the slider. The guiding and limiting plate further limits and guides the moving stroke of the slider on the sliding base. While improving the stability of the slider moving on the sliding base, it avoids the problem of poor product precision caused by the wear of the slider and the sliding base due to long-term repeated operation, and improves the yield rate of side punching of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the present utility model;

[0019] Figure 2 is a schematic structural view of the support base of the present utility model;

[0020] Figure 3 is a schematic structural view of the slider of the present utility model;

[0021] Figure 4 is a schematic structural view of the guiding and limiting plate of the present utility model.

[0022] In the figure: 1, support base; 2, slider; 3, sliding base; 4, embedded inclined surface; 5, sliding inclined surface; 6, card slot; 7, guiding and limiting plate; 8, guiding block; 9, chute; 10, punch; 11, mounting plate; 12, inner sliding seat; 13, receiving seat; 14, clamping block; 15, connecting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0025] A hook-punch-and-slant-wedge structure for an oil pan punching die comprises a support base 1 and a slider 2 that cooperates with the support base 1 for inclined guiding punching. A sliding base 3 is provided on the right side of the support base 1, and a trapezoidal embedded inclined surface 4 is provided on the right side of the sliding base 3.

[0026] The left side of the slider 2 is provided with a trapezoidal sliding inclined surface 5 that cooperates with the embedded inclined surface 4. The sliding inclined surface 5 supports the embedded inclined surface 4 so that the slider 2 slides in cooperation with the sliding inclined surface 5 and the embedded inclined surface 4.

[0027] A guide limit plate 7 is clamped on the slider 2 through a clamping slot 6, and a guide block 8 on the inner side of the end of the guide limit plate 7 is located in a sliding groove 9 on the outer side of the sliding base 3 to cooperate with the slider 2 to slide obliquely on the sliding base 3.

[0028] The top of the slider 2 is provided with an inclined punch 10 through the bottom surface of the mounting plate 11, and the inclination angle of the punch 10 is consistent with the inclination angle of the embedded inclined surface 4 and the sliding inclined surface 5 on the slider 2. When the slider 2 moves downward with the upper die seat, the slider 2 drives the punch 10 on the mounting plate 11 to move downward, so that the punch 10 changes the downward movement direction of the punch 10 as the slider 2 cooperates with the sliding base 3 to produce side punching on the product.

[0029] An inner slide seat 12 is fixed to the inner side of the slider 2 by a locking bolt, and the sliding bevel 5 is provided on the left side of the inner slide seat 12. The inner slide seat 12 is detachably assembled with the slider 2 by the locking bolt. When the sliding bevel 5 on the inner slide seat 12 is worn and the embedded bevel 4 becomes loose, the inner slide seat 12 can be replaced simply, thereby reducing the cost of replacing accessories on the mold.

[0030] A receiving seat 13 is provided on the left side of the support base 1 and is located below the punch 10. A receiving groove 15 is provided on the outer side of the receiving seat 13 corresponding to the punch 10. The receiving seat 13 receives the product punched by the punch 10, and receives the product after punching by the punch 10 through the receiving groove 15.

[0031] The inner side of the guide limit plate 7 is inserted into the groove 6 on the outer wall of the slider 2 through the clamping block 14, and the guide limit plate 7 is fixed to the slider 2 by screws. The guide limit plate 7 is fixed to the slider 2 by screws. When the slider 2 is driven up or down, the position of the slider 2 sliding tilted on the sliding base 3 is limited by the guide limit plate 7, ensuring that the inclination angle of the slider 2 driven by the punch 10 to slide moves according to the stroke, and no angular deviation will occur, thereby improving the accuracy of the punch 10 in punching the product.

[0032] The clamping blocks 14 and the guide block 8 at both ends of the inner side of the guide limit plate 7 are U-shaped, and the guide limit plate 7 limits and guides the sliding stroke of the slider 2 on the sliding base 3.

[0033] The hook punching wedge structure of this oil pan punching die has a sliding inclined surface 5 arranged on the inner side surface of the slider 2, and an embedded inclined surface 4 that is slidably matched with it is arranged on the right side surface of the sliding base 3. The embedded inclined surface 4 and the sliding inclined surface 5 are respectively in trapezoidal sliding fit. Thus, when the slider 2 moves downward with the upper die base assembled on the top mounting plate 11, the slider 2 changes its sliding trajectory through the sliding inclined surface 5 and the embedded inclined surface 4, causing the slider 2 to move downward obliquely relative to the punch 10, thereby achieving the purpose of obliquely punching the product received on the sliding base 3 and improving the stability of side punching of the product.

[0034] A guiding and limiting plate 7 that is slidably matched with the outer side surface chute 9 of the sliding base 3 is arranged on the slider 2. The guiding and limiting plate 7 further limits and guides the moving stroke of the slider 2 on the sliding base 3. While improving the stability of the slider 2 moving on the sliding base 3, it avoids the problem of poor product accuracy caused by the wear of the slider 2 and the sliding base 3 due to long-term repeated operation, and improves the yield rate of side punching of the product.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hook punching inclined wedge structure of an oil pan punching die, comprising a support base (1) and a slider (2) that is inclined and guided for stamping in cooperation with the support base (1), characterized in that: A sliding base (3) is provided on the right side of the support base (1), and a trapezoidal embedded inclined surface (4) is provided on the right side surface of the sliding base (3); The left side of the slider (2) is provided with a trapezoidal sliding inclined surface (5) that cooperates with the embedded inclined surface (4); the sliding inclined surface (5) supports the embedded inclined surface (4) so that the slider (2) slides in cooperation with the sliding inclined surface (5) and the embedded inclined surface (4); The slider (2) is clamped with a guide limit plate (7) via a clamping groove (6), and a guide block (8) on the inner side of the end of the guide limit plate (7) is located in a sliding groove (9) on the outer side of the sliding base (3) to cooperate with the slider (2) to slide obliquely on the sliding base (3).

2. The hook punching inclined wedge structure of an oil pan punching die according to claim 1, characterized in that: The top end of the slider (2) is provided with an inclined punch (10) through the bottom surface of the mounting plate (11), and the inclination angle of the punch (10) is consistent with the inclination angles of the embedded inclined surface (4) and the sliding inclined surface (5) on the slider (2).

3. The hook punching inclined wedge structure of an oil pan punching die according to claim 2, characterized in that: An inner sliding seat (12) is fixed to the inner side of the sliding block (2) via a locking bolt, and a sliding inclined surface (5) is provided on the left side of the inner sliding seat (12).

4. The hook punching inclined wedge structure of an oil pan punching die according to claim 3, characterized in that: A receiving seat (13) is provided on the left side of the support base (1) and is arranged below the punch (10), and a connecting groove (15) is provided on the outer side of the receiving seat (13) corresponding to the punch (10).

5. The hook punching inclined wedge structure of an oil pan punching die according to claim 1, characterized in that: The inner side of the guide limit plate (7) is clamped into the clamping groove (6) on the outer side wall of the slider (2) through the clamping block (14), and the guide limit plate (7) is fixed to the slider (2) by screws.

6. The hook punching inclined wedge structure of an oil pan punching die according to claim 5, characterized in that: The clamping blocks (14) and the guide blocks (8) at both ends of the inner side of the guide limiting plate (7) are U-shaped.

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