A bending die for closed workpieces

Abstract

This utility model discloses a bending die for enclosed workpieces, comprising a first upper die body, a second upper die body, and an upper die pressure beam. The first upper die body is located on the upper left side of the upper die pressure beam, and the second upper die body is located on the upper right side of the upper die pressure beam, and are connected to the upper die pressure beam via a hinge. The first upper die body, the second upper die body, and the upper die pressure beam enclose an interference-free space for forming enclosed workpieces. Simultaneously, the hinge allows the second upper die body and the upper die pressure beam to be separated, and also allows the upper die pressure beam to rotate around the hinge, thereby facilitating the removal of the formed enclosed workpiece. This utility model not only improves the convenience and efficiency of production operations but also facilitates large-scale production.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to a bending mold for closed workpieces. Background Technology

[0002] When performing bending operations with conventional molds, space constraints cause interference, making it impossible to complete the forming process within a confined space, thus hindering the achievement of a closed-loop structure in the workpiece. Patent publication number CN215614490U discloses a bending fixture for closed metal sheet workpieces. This fixture requires the removal of a second bolt after the workpiece is formed, allowing the removal of the second column, and finally, the workpiece can be removed using a handle. While this technology solves the problem of the inability to adjust the size of closed parts and the difficulty in removing them, the need to reinstall the second bolt after each processing cycle is cumbersome, resulting in low production efficiency and hindering large-scale production.

[0003] In view of the above problems, it is necessary to provide a bending die for closed workpieces to improve production efficiency and ease of use. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bending die for closed workpieces.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a bending die for a closed workpiece, comprising a first upper die body, a second upper die body, and an upper die pressure beam, wherein the first upper die body is disposed on the upper left side of the upper die pressure beam; the second upper die body is disposed on the upper right side of the upper die pressure beam and is connected to the upper die pressure beam by a hinge.

[0006] Furthermore, the first upper mold body is provided with a baffle.

[0007] Furthermore, the upper mold pressing beam has a handle on the opposite side where the hinge is located.

[0008] Furthermore, the handle is provided with a groove.

[0009] Furthermore, the bottom of the upper mold pressing beam is V-shaped, and the upper mold pressing beam includes a first inclined surface, an arc surface and a second inclined surface connected in sequence, with the first inclined surface located on the side where the baffle is provided.

[0010] Furthermore, the width of the first inclined plane is smaller than the width of the second inclined plane.

[0011] Furthermore, both the first upper mold body and the second upper mold body are provided with a third inclined surface, the third inclined surface and the second inclined surface have the same inclination angle, and the third inclined surface can be connected with the second inclined surface to form a continuous working surface.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model establishes an interference-free space for forming enclosed workpieces by setting up a first upper mold body, a second upper mold body, and an upper mold pressure beam. Simultaneously, a hinge is welded between the second upper mold body and the upper mold pressure beam, allowing them to be separated while also enabling the upper mold pressure beam to rotate around the hinge, thus facilitating the removal of the formed enclosed workpiece. This structure not only improves operational convenience and work efficiency but also facilitates large-scale production.

[0014] 2. Traditionally, the connection between the bottom surface of the upper mold body and the front and rear surfaces is usually a right angle. However, in this invention, the connection between the bottom surface of the first upper mold body and the front and rear surfaces of the second upper mold body is an obtuse angle at one location and a right angle at the other. The bottom of the upper mold pressure beam has a V-shaped structure, with the width of the first inclined surface being smaller than the width of the second inclined surface. The second and third inclined surfaces form a continuous working inclined surface. This invention, on the one hand, helps reduce the material usage of the first upper mold body, the second upper mold body, and the upper mold pressure beam, thereby reducing manufacturing costs; on the other hand, it does not affect the bending effect of the workpiece, ensuring the forming quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 A schematic diagram of a closed workpiece made using this invention;

[0018] In the diagram: 1. First upper mold body; 2. Second upper mold body; 3. Upper mold pressure beam; 4. Hinge; 5. Baffle; 6. Handle; 7. First inclined surface; 8. Curved surface; 9. Second inclined surface; 10. Third inclined surface. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3As shown, a bending die for enclosed workpieces includes a first upper die body 1, a second upper die body 2, and an upper die pressure beam 3. The first upper die body 1 is located on the upper left side of the upper die pressure beam 3; the second upper die body 2 is located on the upper right side of the upper die pressure beam 3 and is connected to the upper die pressure beam 3 by a welded hinge 4; the hinge 4 is a detachable hinge, which can both separate the second upper die body 2 from the upper die pressure beam 3 and allow the upper die pressure beam 3 to rotate around the hinge 4 to remove the formed workpiece; the first upper die body 1, the second upper die body 2, and the upper die pressure beam 3 together form an interference-proof space for forming enclosed workpieces, such as enclosed heat sinks.

[0021] The first upper mold body 1 is welded with a baffle 5 so that after the upper mold pressure beam 3 rotates to remove the workpiece, it can quickly rotate back to its original position.

[0022] The upper molding beam 3 has a handle 6 on the opposite side of the hinge 4. The handle 6 is used to provide force assistance when rotating the upper molding beam 3. Furthermore, the handle 6 has a groove to increase friction and improve working efficiency; the groove can be T-shaped, cross-shaped, or other structural forms that help increase friction.

[0023] The bottom of the upper mold pressing beam 3 is V-shaped. The upper mold pressing beam 3 includes a first inclined surface 7, an arc surface 8, and a second inclined surface 9 connected in sequence. The first inclined surface 7 is located on the side where the baffle 5 is provided, and the width of the first inclined surface 7 is smaller than the width of the second inclined surface 9.

[0024] Both the first upper mold body 1 and the second upper mold body 2 are provided with a third inclined surface 10. The third inclined surface 10 and the second inclined surface 9 have the same inclination angle. The third inclined surface 10 can be connected with the second inclined surface 9 to form a continuous working inclined surface for bending the workpiece.

[0025] Traditionally, the connection between the bottom surface of an upper mold body and its front and rear surfaces is usually a right angle. However, in this invention, the connection between the bottom surface of the first upper mold body 1 and the front and rear surfaces of the second upper mold body 2 is an obtuse angle at one location and a right angle at the other. With the combined effect of the V-shaped structure at the bottom of the upper mold pressure beam 3, the width of the first inclined surface 7 being smaller than the width of the second inclined surface 9, and the second inclined surface 9 and the third inclined surface 10 forming a continuous working surface, this invention helps to reduce the material usage of the first upper mold body 1, the second upper mold body 2, and the upper mold pressure beam 3, thereby reducing manufacturing costs. Furthermore, it does not affect the bending effect of the workpiece, ensuring the forming quality.

[0026] The specific usage process of this utility model is as follows: The bending die for enclosed workpieces provided by this utility model is installed on a machine tool, and the workpiece is placed on the lower die. Under the action of the machine tool, the bending die for enclosed workpieces presses the workpiece downwards, completing the first bend; then the workpiece is moved, and a second downward press is performed to achieve the bending and shaping of the workpiece. At this time, the workpiece can be removed by rotating the upper die pressure beam 3 through the operating handle 6. When it is necessary to make the next new workpiece, simply rotate the upper die pressure beam 3 back to its original position to start processing again. The operation is simple and the work efficiency is high.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bending die for a closed workpiece, characterized by: It includes a first upper mold body (1), a second upper mold body (2) and an upper mold pressure beam (3). The first upper mold body (1) is located on the upper left side of the upper mold pressure beam (3); the second upper mold body (2) is located on the upper right side of the upper mold pressure beam (3) and is connected to the upper mold pressure beam (3) by a hinge (4).

2. A bending die for bending a closed workpiece as defined in claim 1, wherein: The first upper mold body (1) is provided with a baffle (5).

3. A bending die for bending a closed workpiece as defined in claim 1, wherein: The upper molding beam (3) has a handle (6) on the opposite side of the hinge (4).

4. A bending die for bending a closed workpiece as defined in claim 3, wherein: The handle (6) has a groove.

5. A bending die for bending a closed workpiece as defined in claim 1, wherein: The bottom of the upper mold pressing beam (3) is V-shaped. The upper mold pressing beam (3) includes a first inclined surface (7), an arc surface (8), and a second inclined surface (9) connected in sequence. The first inclined surface (7) is located on the side where the baffle (5) is provided.

6. A bending die for closed profile workpieces as claimed in claim 5, wherein: The width of the first inclined plane (7) is smaller than the width of the second inclined plane (9).

7. A bending die for a closed workpiece as described in claim 5 or 6, characterized in that: The first upper mold body (1) and the second upper mold body (2) are both provided with a third inclined surface (10). The third inclined surface (10) and the second inclined surface (9) have the same inclination angle. The third inclined surface (10) can be connected with the second inclined surface (9) to form a continuous working surface.

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