Wedge punching mechanism of stamping die

Abstract

The utility model relates to a wedge punching mechanism of a stamping die, and belongs to the technical field of stamping dies. Comprising an upper die base and a lower die base, an upper inclined wedge capable of horizontally moving is arranged in the upper die base, the upper inclined wedge is arranged between an upper pressing plate and the upper die base, two driving bases are arranged at the top of the lower die base and arranged on the two sides of a forming face, and a plurality of obliquely-arranged punches are arranged at the bottom of the upper inclined wedge located above the forming face. The orientation of the punch is the same as the inclination direction of the upper guide piece, and the bottom of the punch penetrates through the upper pressing plate and extends to the forming surface; according to the scheme, the driving bases are arranged on the two sides of the forming face, the upper wedge is pushed by the two driving bases to move more stably, the precision of wedge punching is improved, due to the fact that the upper wedge is arranged above the forming face in a crossing mode, punching can be conducted on any position on the forming face, the applicability of wedge punching is improved, and the punching efficiency is improved. And the occupied volume of the wedge punching structure in the die is also reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies and relates to an oblique wedge punching mechanism of a stamping die. Background Art

[0002] Metal parts on automobiles are usually manufactured using stamping dies. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature, causing it to separate or plastically deform, thereby obtaining the desired parts.

[0003] In the stamping die structure of the prior art, there is a mechanism for bevel punching. The device presses down the bevel slider through the upper die. The bevel slider tilts and pushes the punch vertically into the gap to punch the workpiece. Since the bevel slider is arranged on the side of the stamping surface, it occupies the space in the die. It is used for punching processing inside large dies and cannot meet the needs of stamping dies with small punching space. Since the bevel sliders are arranged on both sides, it is difficult to punch the inner part of the forming surface. Summary of the Invention

[0004] The purpose of the utility model is to address the problems existing in the existing technology and propose an oblique wedge punching mechanism of a stamping die. The technical problem to be solved by the utility model is: how to optimize the oblique wedge punching structure.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a wedge punching mechanism of a stamping die, comprising an upper die base and a lower die base, the bottom of the upper die base is provided with a fixed upper pressure plate, the top of the lower die base is provided with a fixed lower pressure plate, a forming surface is provided between the upper pressure plate and the lower pressure plate, an upper inclined wedge that can move horizontally is provided inside the upper die base, the upper inclined wedge is provided between the upper pressure plate and the upper die base, and obliquely arranged upper guide members are provided on both sides of the upper inclined wedge, two driving seats are provided on the top of the lower die base, the driving seats are provided on both sides of the forming surface, a lower guide member is provided on the driving seat, the upper guide member can be abutted against the lower guide member, and a plurality of obliquely arranged punches are provided at the bottom of the upper inclined wedge above the forming surface, the direction of the punch is the same as the inclination direction of the upper guide member, and the bottom of the punch extends through the upper pressure plate to the forming surface.

[0006] In this solution, multiple punches for punching are arranged at the bottom of the upper bevel wedge. During the downward movement of the upper die seat, the upper guides on both sides of the upper bevel wedge abut against the lower guides on both sides. Since the upper bevel wedge is slidably connected to the upper die seat, the drive seat will push the upper bevel wedge to move horizontally toward the side away from the drive seat, causing the upper bevel wedge to move downwardly as a whole. The punches at the bottom of the upper bevel wedge can punch the metal sheet on the forming surface at an oblique downward, vertical angle. By arranging the drive seats on both sides of the forming surface in the above manner, the two drive seats push the upper bevel wedge to move more stably, thereby improving the accuracy of the bevel wedge punching. The upper bevel wedge is arranged between the upper die seat and the upper pressure plate, and the punches are arranged at the bottom of the upper bevel wedge, replacing the structure of the bevel wedge slider in the prior art, reducing the volume occupied by the bevel wedge punching structure in the mold. Since the upper bevel wedge is arranged in a cross-sectional manner above the forming surface, punching can be performed at any position on the forming surface, improving the applicability of the bevel wedge punching.

[0007] In the aforementioned wedge punching mechanism of the stamping die, a fixed seat is provided at the connection between the punch and the upper wedge. The punch is fixedly mounted within the fixed seat. The lower pressing plate is provided with a plurality of obliquely arranged die sleeves, into which the bottom of the punch can be vertically inserted. The fixed seat is used to secure the punch and improve the stability of the punch structure. During the stamping process, the bottom can penetrate the metal sheet and be inserted into the bottom die sleeve to form a hole in the metal sheet.

[0008] In the aforementioned wedge punching mechanism of the stamping die, several storage baskets are located within the lower die base, connected to the bottom of the die housing. Waste material that falls out of the punching process is pushed into the die housing, flows through the housing's channels, and falls into the storage baskets at the bottom for collection.

[0009] In the aforementioned wedge punching mechanism of the stamping die, a nitrogen spring is installed on the side of the upper wedge facing away from the upper guide. The end of the nitrogen spring abuts the upper die seat. A stopper is installed on the side of the upper wedge facing the upper guide, which abuts the upper die seat. After stamping is completed, the nitrogen spring pushes the upper wedge back to its original position. The stopper at the other end abuts the upper die seat, preventing collision between the upper wedge and the upper die seat during the reset process.

[0010] In the aforementioned wedge punching mechanism of the stamping die, a connecting post is fixedly attached to the top of the upper wedge. The upper die base is provided with a sliding hole, and the connecting post is disposed within the sliding hole. A raised ring is provided on the top of the connecting post. The upper wedge is suspended within the upper die base via the connecting post. The sliding hole provides a space for the connecting post to slide. When the upper wedge is pushed by the drive base, the connecting post slides within the sliding hole, causing the upper wedge to move with it. The raised ring is used to limit the position of the connecting post within the sliding hole.

[0011] In the aforementioned wedge punching mechanism of the stamping die, the upper wedge is provided with fixed locking hooks on both sides, and the side of the drive seat is provided with a groove, into which one end of the locking hook can be inserted. When the upper guide member abuts the lower guide member, one end of the locking hook is inserted into the groove, maintaining the distance between the upper wedge and the drive seat, thereby improving structural stability.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. In this solution, driving seats are set on both sides of the forming surface. The two driving seats drive the upper inclined wedge to move more stably, thereby improving the accuracy of the inclined wedge punching.

[0014] 2. In this solution, the upper inclined wedge is set between the upper die base and the upper pressure plate, and the punch is set at the bottom of the upper inclined wedge, replacing the structure of the inclined wedge slider in the prior art, reducing the volume occupied by the inclined wedge punching structure in the die.

[0015] 3. In this solution, since the upper inclined wedge is arranged above the forming surface in a horizontal manner, punching can be performed at any position on the forming surface, thereby improving the applicability of the inclined wedge punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the half-section structure of the drive seat of the utility model;

[0017] Figure 2 This is a schematic diagram of the half-section structure of the punch part of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 4 It is a schematic structural diagram of the utility model in the open state.

[0020] In the figure, 1, upper die base; 1a, upper pressure plate; 1b, sliding hole; 2, lower die base; 2a, lower pressure plate; 2a1, die sleeve; 2b, storage basket; 3, upper inclined wedge; 3a, upper guide; 3b, nitrogen spring; 3c, limit block; 3d, locking hook; 4, driving seat; 4a, lower guide; 4b, groove; 5, forming surface; 6, punch; 6a, fixing seat; 7, connecting column; 7a, convex ring. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] Example

[0023] like Figure 1As shown, the oblique wedge punching mechanism of the stamping die comprises an upper die base 1 and a lower die base 2, wherein the upper die base 1 is provided with a fixed upper pressing plate 1a at the bottom, and the lower die base 2 is provided with a fixed lower pressing plate 2a at the top, and a forming surface 5 is provided between the upper pressing plate 1a and the lower pressing plate 2a, and an upper oblique wedge 3 is provided between the upper die base 1 and the upper pressing plate 1a, and the top of the upper oblique wedge 3 is slidably connected to the upper die base 1, and upper guide members 3a arranged obliquely on both sides of the upper oblique wedge 3 are provided. Two driving seats 4 are provided on the top of the seat 2, and the driving seats 4 are provided on both sides of the forming surface 5. A lower guide 4a is provided on the driving seat 4, and the upper guide 3a can abut against the lower guide 4a. A nitrogen spring 3b is provided on the side of the upper inclined wedge 3 away from the upper guide 3a, and the end of the nitrogen spring 3b abuts against the upper mold seat 1. A limit block 3c is provided on the side of the upper inclined wedge 3 close to the upper guide 3a, and the limit block 3c can abut against the upper mold seat 1.

[0024] like Figure 2 As shown, a fixing seat 6a is provided at the bottom of the upper inclined wedge 3, and a plurality of obliquely arranged punches 6 are provided inside the fixing seat 6a. The direction of the punch 6 is the same as the inclination direction of the upper guide 3a. The bottom of the punch 6 extends through the upper pressure plate 1a to the forming surface 5. The punch 6 is perpendicular to the forming surface 5 at the connection. The lower pressure plate 2a is provided with a plurality of obliquely arranged die sleeves 2a1, and the bottom of the punch 6 can be vertically inserted into the die sleeve 2a1. A plurality of storage baskets 2b are provided inside the lower die base 2, and the bottom of the die sleeve 2a1 is connected to the storage basket 2b.

[0025] like Figure 3 Combine Figure 4 As shown, the top of the upper inclined wedge 3 is provided with a fixed connecting column 7, the upper mold base 1 is provided with a sliding hole 1b, the connecting column 7 is arranged inside the sliding hole 1b, the top of the connecting column 7 is provided with a convex ring 7a, and the upper inclined wedge 3 is provided with fixed locking hooks 3d on both sides, and the side of the drive seat 4 is provided with a groove 4b, and one end of the locking hook 3d can be inserted into the inside of the groove 4b.

[0026] The working principle of this scheme is as follows: Figure 1-4As shown, during the downward movement of the upper die base 1, the upper guide members 3a on both sides of the upper inclined wedge 3 abut against the lower guide members 4a on both sides. Since the upper inclined wedge 3 is slidably connected to the upper die base 1, the driving seat 4 will push the upper inclined wedge 3 to move horizontally toward the side away from the driving seat 4, so that the upper inclined wedge 3 moves obliquely downward as a whole. The punch 6 at the bottom of the upper inclined wedge 3 can punch the metal sheet on the forming surface 5 at an oblique downward and vertical angle. At the same time, the upper pressure plate 1a and the lower pressure plate 2a are squeezed to punch the metal sheet placed on the forming surface 5. The waste generated by the punching will be pushed into the die sleeve 2a1, and fall into the storage basket 2b placed at the bottom along the channel of the die sleeve 2a1 to collect the waste. After the mold is opened, the nitrogen spring 3b pushes the upper inclined wedge 3 to reset and wait for the next round of punching.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0028] Although this article frequently uses terms such as 1. upper die base; 1a. upper pressure plate; 1b. sliding hole; 2. lower die base; 2a. lower pressure plate; 2a1. die sleeve; 2b. storage basket; 3. upper inclined wedge; 3a. upper guide; 3b. nitrogen spring; 3c. limit block; 3d. locking hook; 4. driving seat; 4a. lower guide; 4b. groove; 5. forming surface; 6. punch; 6a. fixing seat; 7. connecting column; 7a. convex ring, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A wedge punching mechanism for a stamping die, comprising an upper die base (1) and a lower die base (2), wherein the bottom of the upper die base (1) is provided with a fixed upper pressing plate (1a), the top of the lower die base (2) is provided with a fixed lower pressing plate (2a), a forming surface (5) is provided between the upper pressing plate (1a) and the lower pressing plate (2a), and characterized in that: The upper die base (1) is provided with an upper inclined wedge (3) capable of horizontal movement. The upper inclined wedge (3) is provided between the upper pressure plate (1a) and the upper die base (1). Upper guide members (3a) are provided on both sides of the upper inclined wedge (3). Two driving seats (4) are provided on the top of the lower die base (2). The driving seats (4) are provided on both sides of the forming surface (5). Lower guide members (4a) are provided on the driving seats (4). The upper guide members (3a) can abut against the lower guide members (4a). A plurality of obliquely arranged punches (6) are provided at the bottom of the upper inclined wedge (3) above the forming surface (5). The direction of the punches (6) is the same as the inclination direction of the upper guide members (3a). The bottom of the punches (6) passes through the upper pressure plate (1a) and extends to the forming surface (5).

2. The wedge punching mechanism of a stamping die according to claim 1, characterized in that: A fixed seat (6a) is provided at the connection between the punch (6) and the upper inclined wedge (3), and the punch (6) is fixedly arranged inside the fixed seat (6a). The lower pressing plate (2a) is provided with a plurality of obliquely arranged die sleeves (2a1), and the bottom of the punch (6) can be vertically inserted into the die sleeves (2a1).

3. The wedge punching mechanism of a stamping die according to claim 2, characterized in that: A plurality of storage baskets (2b) are provided inside the lower die base (2), and the bottom of the die sleeve (2a1) is connected to the storage baskets (2b).

4. The wedge punching mechanism of a stamping die according to claim 2, characterized in that: A nitrogen spring (3b) is provided on the side of the upper inclined wedge (3) away from the upper guide member (3a), and the end of the nitrogen spring (3b) abuts against the upper die seat (1). A limit block (3c) is provided on the side of the upper inclined wedge (3) close to the upper guide member (3a), and the limit block (3c) can abut against the upper die seat (1).

5. The wedge punching mechanism of a stamping die according to claim 4, characterized in that: A fixed connecting column (7) is provided on the top of the upper inclined wedge (3), a sliding hole (1b) is provided on the upper die seat (1), the connecting column (7) is arranged inside the sliding hole (1b), and a convex ring (7a) is provided on the top of the connecting column (7).

6. The wedge punching mechanism of a stamping die according to claim 1, characterized in that: The upper inclined wedge (3) is provided with fixed locking hooks (3d) on both sides, and the driving seat (4) is provided with a groove (4b) on the side, and one end of the locking hook (3d) can be inserted into the interior of the groove (4b).

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