Double-acting tapered wedge mechanism
Through the design of the double-moving inclined wedge mechanism, two opposite side impact forces are used to ensure stable molding of sheet metal products, which solves the problem of insufficient single-direction side impact in the prior art, and improves the stamping strength and molding effect of the mold.
Patent Information
- Application Number
- CN202422210639.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing inclined wedge mechanism can only provide one-way side impact, which is difficult to meet the effective and stable forming needs of complex automotive sheet metal products.
A double-moving oblique wedge mechanism is adopted, by providing parallel and opposite knife drive blocks and sliders on the upper die, and using the cooperation of the inclined wedge surface and the return spring, two opposite side impact forces are achieved to ensure the stable molding of the sheet metal product.
It realizes effective and stable molding of sheet metal products, and improves the stamping strength and molding accuracy of the mold.
Smart Images
Figure CN223056495U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stamping dies, and particularly relates to a double-acting inclined wedge mechanism. Background Art
[0002] The inclined wedge mechanism is mainly used in stamping dies. By the cooperation of the inclined wedge and the slider, the force generated by the vertical movement of the punching press can be converted into the force of horizontal movement or inclined movement, so as to realize side punching. The ordinary inclined wedge mechanism can only provide a single-direction side punching force to the product through a single inclined wedge and a single slider. Specifically, the product is pressed against a positioning block by a forming block arranged on the slider for side punching. For some automotive sheet metal products with complex shapes, when performing stamping processes such as side shaping and negative angle forming, the stamping requirements are relatively high. However, the ordinary inclined wedge mechanism can only provide a single-direction side punching force, which may not ensure the effective and stable forming of the sheet metal product. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a double-acting inclined wedge mechanism, which can provide two opposite side punching forces to the product and ensure the effective and stable forming of the sheet metal product.
[0004] To solve the above technical problem, the utility model adopts the following technical solutions:
[0005] A double-acting inclined wedge mechanism includes an upper die and a lower die; a first knife driving block and a second knife driving block which are parallel to each other and arranged oppositely are fixedly connected to the upper die. The lower end of the first knife driving block is longer than the lower end of the second knife driving block. The first knife driving block is successively provided with a first inclined wedge surface, a vertical transition surface and a second inclined wedge surface from bottom to top. The second knife driving block is provided with a third inclined wedge surface; a slide table is slidably connected to the lower die. A first slider is fixedly connected to the slide table below the first knife driving block. One end of the first slider is provided with a first inclined contact surface adapted to the first inclined wedge surface and the second inclined wedge surface, and the other end is fixedly connected with a first forming block. The first inclined contact surface extends to the outer side surface of the first slider to form a V-shaped structure. A second slider is slidably connected to the slide table below the second knife driving block. One end of the second slider is provided with a second inclined contact surface adapted to the third inclined wedge surface, and the other end is fixedly connected with a second forming block arranged oppositely to the first forming block; when the die is closed, the first knife driving block and the second knife driving block move downward. The first knife driving block first pushes the first slider and the slide table to slide on the lower die, and then the second knife driving block pushes the second slider to slide on the slide table, so as to drive the second forming block to move towards the first forming block and perform side punching on the product.
[0006] In some embodiments, a first pushing block and a first reset spring are provided below the sliding table. The first pushing block is fixedly connected to the bottom of the sliding table. The first reset spring is arranged along the sliding direction of the sliding table, with one end mounted on the lower die and the other end abutted against the first pushing block. Below the second slider, there is a second pushing block and a second reset spring. The second pushing block is fixedly connected to the bottom of the second slider. The second reset spring is arranged along the sliding direction of the second slider, with one end mounted on the sliding table and the other end abutted against the second pushing block. In at least one embodiment, the first reset spring and the second reset spring are nitrogen springs.
[0007] In some embodiments, a first knife stop is fixedly connected to the side of the first slider on the lower die, which is used to limit the displacement of the first slider and the sliding table. A second knife stop is fixedly connected to the side of the second slider on the sliding table, which is used to limit the displacement of the second slider.
[0008] Compared with the prior art, the present utility model at least achieves the following beneficial effects:
[0009] When the present utility model is closed, the first insert knife driving block and the second insert knife driving block move downward. Since the lower end of the first insert knife driving block is longer than the lower end of the second insert knife driving block, first, the first inclined wedge surface contacts the first inclined contact surface, and the first insert knife driving block first pushes the first slider and the sliding table to slide on the lower die. Until the third inclined wedge surface contacts the second inclined contact surface, then the second insert knife driving block pushes the second slider to slide on the sliding table, so as to drive the second forming block to move towards the first forming block and perform lateral stamping on the product. During the process of the second insert knife driving block pushing the second slider, the vertical transition surface of the first insert knife driving block contacts the outer side surface of the first slider, thereby applying a lateral punching force towards the second forming block to the first slider and the first forming block, so that the first forming block and the second forming block respectively provide a lateral punching force to the product, and the lateral punching forces of the first forming block and the second forming block are arranged towards each other, enabling the sheet metal product to be effectively formed, ensuring the stable output of the sheet metal product, and enhancing the stamping strength of the mold. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Now, one or more embodiments of the present utility model will be described only by way of example with reference to the accompanying drawings, in which:
[0011] Figure 1 is an exploded view of an embodiment of the present application;
[0012] Figure 2 is a schematic structural diagram of the closed state of an embodiment of the present application;
[0013] Figure 3 is a schematic structural diagram of the first reset spring of an embodiment of the present application;
[0014] Figure 4 is a schematic structural diagram of the second reset spring of an embodiment of the present application.
[0015] The reference numerals in the figure are: 1, the first insert tool driving block; 11, the first inclined wedge surface; 12, the vertical transition surface; 13, the second inclined wedge surface; 2, the second insert tool driving block; 21, the third inclined wedge surface; 3, the slide table; 31, the first convex edge; 4, the first slider; 41, the first inclined contact surface; 5, the first forming block; 6, the second slider; 61, the second inclined contact surface; 62, the second convex edge; 7, the second forming block; 8, the first pushing block; 9, the first return spring; 10, the second pushing block; 20, the second return spring; 30, the first tool resting block; 40, the second tool resting block; 50, the first guiding block; 60, the second guiding block; 70, the first forced reset block; 80, the second forced reset block; 90, the product. Detailed implementation manners
[0016] The present invention will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. It should be understood, however, that the present application can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.
[0017] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meanings of "several" and "multiple" are two or more, unless otherwise specifically and clearly defined. In the present application, unless otherwise clearly specified and limited, the terms such as "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0018] Such as Figures 1 to 4As shown in the figure, in an embodiment of the present utility model, the double-acting inclined wedge mechanism includes an upper die and a lower die; on the upper die, a first knife-insert driving block 1 and a second knife-insert driving block 2 which are parallel to each other and arranged facing each other are fixedly connected. The lower end of the first knife-insert driving block 1 is longer than the lower end of the second knife-insert driving block 2. On the first knife-insert driving block 1, a first inclined wedge surface 11, a vertical transition surface 12, and a second inclined wedge surface 13 are sequentially arranged from bottom to top. On the second knife-insert driving block 2, a third inclined wedge surface 21 is provided; on the lower die, a slide table 3 is slidably connected. On the slide table 3, a first slider 4 is fixedly connected below the first knife-insert driving block 1. One end of the first slider 4 is provided with a first inclined contact surface 41 adapted to the first inclined wedge surface 11 and the second inclined wedge surface 13, and the other end is fixedly connected with a first forming block 5. The first inclined contact surface 41 extends to the outer side surface of the first slider 4 to form a V-shaped structure. On the slide table 3, a second slider 6 is slidably connected below the second knife-insert driving block 2. One end of the second slider 6 is provided with a second inclined contact surface 61 adapted to the third inclined wedge surface 21, and the other end is fixedly connected with a second forming block 7 arranged facing the first forming block 5. The first forming block 5 and the second forming block 7 are provided with forming surfaces adapted to the product 90; when the mold is closed, the first knife-insert driving block 1 and the second knife-insert driving block 2 move downward. The first knife-insert driving block 1 first pushes the first slider 4 and the slide table 3 to slide on the lower die, and then the second knife-insert driving block 2 pushes the second slider 6 to slide on the slide table 3, so as to drive the second forming block 7 to move towards the first forming block 5 and perform lateral stamping on the product 90.
[0019] Specifically, a first push block 8 and a first return spring 9 are provided below the slide table 3. The first push block 8 is fixedly connected to the bottom of the slide table 3. The first return spring 9 is arranged along the sliding direction of the slide table 3. One end of it is installed on the lower die, and the other end abuts against the first push block 8; a second push block 10 and a second return spring 20 are provided below the second slider 6. The second push block 10 is fixedly connected to the bottom of the second slider 6. The second return spring 20 is arranged along the sliding direction of the second slider 6. One end of it is installed on the slide table 3, and the other end abuts against the second push block 10. The first return spring 9 can ensure the reciprocating movement of the slide table 3, and the second return spring 20 can ensure the reciprocating movement of the second slider 6.
[0020] Preferably, the first return spring 9 and the second return spring 20 are nitrogen springs.
[0021] Specifically, a first knife rest 30 is fixedly connected to the lower die beside the first slider 4, which is used to limit the displacement of the first slider 4 and the slide 3; a second knife rest 40 is fixedly connected to the slide 3 beside the second slider 6, which is used to limit the displacement of the second slider 6. When the mold is opened, the first knife driving block 1 and the second knife driving block 2 move upward. The slide 3 can be reset due to the elastic force of the first return spring 9, and the slide 3 leans against the first knife rest 30 through the first slider 4; the second slider 6 can be reset due to the elastic force of the second return spring 20, and the second slider 6 leans against the second knife rest 40.
[0022] Specifically, first guide blocks 50 with a 7-shaped cross-section are fixedly connected to both sides of the slide 3 on the lower die, and first convex edges 31 that are slidably connected to the first guide blocks 50 are provided on both sides of the slide 3; second guide blocks 60 with a 7-shaped cross-section are fixedly connected to both sides of the second slider 6 on the slide 3, and second convex edges 62 that are slidably connected to the second guide blocks 60 are provided on both sides of the second slider 6.
[0023] Specifically, a first forced reset block 70 is provided between the first knife driving block 1 and the first slider 4. One end of the first forced reset block 70 is installed on the first slider 4, and the other end is slidably connected to a reset groove provided on the first knife driving block 1; a second forced reset block 80 is provided between the second knife driving block 2 and the second slider 6. One end of the second forced reset block 80 is installed on the second slider 6, and the other end is slidably connected to a reset groove provided on the second knife driving block 2. Considering the possibility after the failure of the first return spring 9 and the second return spring 20, the first forced reset block 70 and the second forced reset block 80 are provided, which can force the first slider 4 and the second slider 6 back to the initial position after each stamping to ensure the stamping accuracy.
[0024] The working principle of the present utility model is as follows:
[0025] In the initial state, the first knife driving block 1 and the second knife driving block 2 are respectively located above the first slider 4 and the second slider 6. Due to the elastic forces of the first return spring 9 and the second return spring 20, the first slider 4 closely abuts against the first knife rest 30, and the second slider 6 closely abuts against the second knife rest 40. At this time, the second forming block 7 is far away from the first forming block 5;
[0026] When the mold is closed, the first insert driving block 1 and the second insert driving block 2 move downward. Since the lower end of the first insert driving block 1 is longer than that of the second insert driving block 2, first, the first inclined wedge surface 11 contacts the first inclined contact surface 41. The first insert driving block 1 first pushes the first slider 4 and the sliding table 3 to slide on the lower mold. When the third inclined wedge surface 21 contacts the second inclined contact surface 61, then the second insert driving block 2 pushes the second slider 6 to slide on the sliding table 3, so as to drive the second forming block 7 to move towards the first forming block 5 and perform a lateral stamping on the product 90. During the process of the second insert driving block 2 pushing the second slider 6, the vertical transition surface 12 of the first insert driving block 1 contacts the outer side surface of the first slider 4, thereby applying a lateral punching force towards the second forming block 7 to the first slider 4 and the first forming block 5. The utility model provides two opposite lateral punching forces to the product 90 through the double-action inclined wedge mechanism, ensuring the effective and stable forming of the product 90. Through the two opposite lateral punching forces, the forces on the first forming block 5 and the second forming block 7 are balanced, and the strength of the stamping die is improved.
[0027] When the mold is opened, the first insert driving block 1 and the second insert driving block 2 move upward. The second insert driving block 2 first leaves the second inclined contact surface 61, and the second slider 6 resets. The first insert driving block 1 then leaves the first inclined contact surface 41, and the sliding table 3 resets.
[0028] It should be understood that all the above embodiments are exemplary rather than restrictive. Under the concept of the utility model, any modification, equivalent change and modification made by those skilled in the art to the specific embodiments described above still fall within the scope of the technical solution of the utility model.
Claims
1. A double-acting inclined wedge mechanism, characterized in that: It includes an upper die and a lower die; On the upper die, a first insert driving block (1) and a second insert driving block (2) which are parallel to each other and arranged facing each other are fixedly connected. The lower end of the first insert driving block (1) is longer than the lower end of the second insert driving block (2). On the first insert driving block (1), a first inclined wedge surface (11), a vertical transition surface (12) and a second inclined wedge surface (13) are successively arranged from bottom to top. On the second insert driving block (2), a third inclined wedge surface (21) is provided; On the lower die, a slide table (3) is slidably connected. On the slide table (3) and below the first insert driving block (1), a first slider (4) is fixedly connected. One end of the first slider (4) is provided with a first inclined contact surface (41) adapted to the first inclined wedge surface (11) and the second inclined wedge surface (13), and the other end is fixedly connected with a first forming block (5). The first inclined contact surface (41) extends to the outer side surface of the first slider (4) to form a V-shaped structure. On the slide table (3) and below the second insert driving block (2), a second slider (6) is slidably connected. One end of the second slider (6) is provided with a second inclined contact surface (61) adapted to the third inclined wedge surface (21), and the other end is fixedly connected with a second forming block (7) arranged facing the first forming block (5); When the dies are closed, the first insert driving block (1) and the second insert driving block (2) move downward. The first insert driving block (1) first pushes the first slider (4) and the slide table (3) to slide on the lower die, and then the second insert driving block (2) pushes the second slider (6) to slide on the slide table (3), so as to drive the second forming block (7) to move towards the first forming block (5) and perform lateral stamping on the product (90).
2. The double-acting inclined wedge mechanism according to claim 1, wherein: Below the slide table (3), a first push block (8) and a first return spring (9) are provided. The first push block (8) is fixedly connected to the bottom of the slide table (3). The first return spring (9) is arranged along the sliding direction of the slide table (3), with one end mounted on the lower die and the other end abutted against the first push block (8); below the second slider (6), a second push block (10) and a second return spring (20) are provided. The second push block (10) is fixedly connected to the bottom of the second slider (6). The second return spring (20) is arranged along the sliding direction of the second slider (6), with one end mounted on the slide table (3) and the other end abutted against the second push block (10).
3. The double-acting angled wedge mechanism according to claim 2, wherein: The first return spring (9) and the second return spring (20) are nitrogen springs.
4. The double-acting angled wedge mechanism according to claim 1, wherein: On the lower die and beside the first slider (4), a first knife rest (30) is fixedly connected, which is used to limit the displacement of the first slider (4) and the slide table (3); on the slide table (3) and beside the second slider (6), a second knife rest (40) is fixedly connected, which is used to limit the displacement of the second slider (6).
5. The double-acting angled wedge mechanism according to claim 1, wherein: On the lower die, first guide blocks (50) with a 7-shaped cross-section are fixedly connected to both sides of the sliding table (3), and first convex edges (31) that are slidably connected to the first guide blocks (50) are provided on both sides of the sliding table (3); on the sliding table (3), second guide blocks (60) with a 7-shaped cross-section are fixedly connected to both sides of the second slider (6), and second convex edges (62) that are slidably connected to the second guide blocks (60) are provided on both sides of the second slider (6).
6. The double-acting angled wedge mechanism according to claim 1, wherein: A first forced reset block (70) is provided between the first tool inserting drive block (1) and the first slider (4); a second forced reset block (80) is provided between the second tool inserting drive block (2) and the second slider (6).