Bending section differential die

Abstract

The utility model provides a bending section differential die which comprises an upper die and a lower die which are vertically and correspondingly matched, the upper die comprises an upper die handle and an upper die insert, the upper die insert is detachably installed below the upper die handle, the lower die comprises a lower die handle and a lower die insert, the lower die insert is detachably installed above the lower die handle, and the lower die handle is detachably installed above the lower die insert. The lower mold insert and the upper mold insert are the same in structure and are rotationally and symmetrically arranged up and down, a first forming surface is arranged below the upper mold insert, the first forming surface is of a curved surface structure with a segment difference layer, and a second forming surface matched with the first forming surface is arranged above the lower mold insert. Compared with the prior art, one-time bending forming of a product is achieved through the forming faces, with the segment difference layer structures, of the upper mold insert and the lower mold insert, the bending efficiency of the product is effectively improved, and the stability of the production quality of the product is ensured; and the die structure can be adapted to various workpieces with different section difference specifications, and the manufacturing cost of the die is effectively saved.

Description

Technical Field

[0001] This utility model relates to the field of bending die technology, specifically a bending step die. Background Technology

[0002] The design of existing 3D bending equipment bending dies mostly adopts traditional dies that repeatedly bend the product at rounded angles, performing the bending process in two stages. Moreover, these dies are designed for workpieces of specific shapes and sizes. When processing workpieces with different step requirements, the entire set of dies often needs to be replaced. This traditional design has several problems. First, the die replacement process is cumbersome, requiring specialized technicians, which is time-consuming and labor-intensive, leading to a significant reduction in production efficiency. Statistics show that each die replacement takes an average of 1-2 hours, severely impacting the continuity of the production line. Second, frequent replacement of the entire set of dies increases production costs, including not only the manufacturing and procurement costs of the dies themselves, but also the labor costs during the replacement process and the production losses caused by equipment downtime. It lacks consideration for the flexibility and versatility of the dies. Utility Model Content

[0003] The purpose of this invention is to provide a bending step die to solve the technical problems in the background art.

[0004] To achieve the aforementioned objectives, this utility model provides the following technical solution:

[0005] A bending step die includes an upper die and a lower die that are correspondingly fitted together. The upper die includes an upper die shank and an upper die insert, the upper die insert being detachably installed below the upper die shank. The lower die includes a lower die shank and a lower die insert, the lower die insert being detachably installed above the lower die shank. The lower die insert and the upper die insert have the same structure and are arranged symmetrically in a vertical rotational configuration. The lower part of the upper die insert is a first forming surface, which is a curved surface structure with a step layer. The upper part of the lower die insert is a second forming surface that mates with the first forming surface.

[0006] The upper mold insert includes an upper mold core block and an upper mounting block. The upper mounting block is vertically fixed above the upper mold core block and fixed to the upper mold shank by screws. The upper mold shank has a recessed first mounting groove below it, and the upper mounting block is located in the first mounting groove.

[0007] The first forming surface consists of a first contact surface, a second contact surface, and a third contact surface from left to right. The third contact surface is above the first contact surface. The second contact surface is a concave arc-shaped transition surface structure. The right side of the first contact surface and the second contact surface are connected by a first transition arc surface.

[0008] Both the first contact surface and the third contact surface are arranged along the horizontal direction, and the first contact surface and the third contact surface are parallel to each other.

[0009] The upper mold shank includes a first connecting arm, a second connecting arm, and a third connecting arm. The first connecting arm is vertically fixed to one side above the second connecting arm, and the third connecting arm is vertically fixed to one side below the second connecting arm. The upper mold insert is installed below the third connecting arm, and the lower mold shank has the same structure as the upper mold shank.

[0010] The lower mold insert includes a lower mold core block and a lower mounting block. The lower mounting block is vertically fixed below the lower mold core block and fixed to the lower mold shank by screws. A recessed second mounting groove is provided above the lower mold shank, and the lower mounting block is located in the second mounting groove.

[0011] The second forming surface consists of a fourth contact surface, a fifth contact surface, and a sixth contact surface from left to right. The sixth contact surface is above the fourth contact surface. The fifth contact surface is a concave arc-shaped transition surface structure. The left side of the sixth contact surface and the fifth contact surface are connected by a second transition arc surface. The fourth contact surface is parallel to the first contact surface, and the sixth contact surface is parallel to the third contact surface.

[0012] Both the upper and lower molds are made of either high-speed steel or mold steel.

[0013] Compared with the prior art, the bending step die of this application utilizes the forming surfaces with step layer structures on the upper and lower die inserts to achieve one-time bending forming of the product, effectively improving the bending efficiency of the product and ensuring the stability of product production quality. The upper and lower die inserts in this application are both detachable structures, which can be quickly positioned and locked with the upper and lower die handles respectively. Ordinary operators can complete the die replacement within 10 minutes, greatly shortening downtime. Moreover, it can be adapted to the die structure of various workpieces with different step specifications, effectively saving the die manufacturing cost. Attached Figure Description

[0014] Figure 1 : A three-dimensional structural diagram of this application;

[0015] Figure 2 Main view of the upper model;

[0016] Figure 3 Main view of the lower mold. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Specific Implementation Example 1: Please refer to Figures 1 to 3In this embodiment of the utility model, a bending step die includes an upper die 1 and a lower die 4 that are correspondingly fitted together. In this application, both the upper die 1 and the lower die 4 are made of high-speed steel or mold steel.

[0019] The upper mold 1 includes an upper mold shank 2 and an upper mold insert 3. The upper mold insert 3 is detachably installed below the upper mold shank 2. The lower mold 4 includes a lower mold shank 5 and a lower mold insert 6. The lower mold insert 6 is detachably installed above the lower mold shank 5. The lower mold insert 6 and the upper mold insert 3 have the same structure and are arranged symmetrically in rotation. In this application, the upper mold insert 3 and the lower mold insert 6 are assembled with the upper mold shank 2 and the lower mold shank 5 in a modular manner, which allows the corresponding inserts to be quickly replaced to adapt to various step size requirements. Compared with traditional molds that require the replacement of the entire mold component to adapt to different step sizes, this greatly improves production flexibility and efficiency.

[0020] In this embodiment, the lower part of the upper mold insert 3 is the first molding surface 302-1, which is a curved surface structure with a stepped layer, and the upper part of the lower mold insert 6 is the second molding surface 602-1 that cooperates with the first molding surface 302-1.

[0021] The upper mold insert 3 includes an upper mold core block 302 and an upper mounting block 301. The upper mounting block 301 is vertically fixed above the upper mold core block 302 and is fixedly installed with the upper mold handle 2 by screws. The upper mold handle 2 is provided with a recessed first mounting groove 203-1 below it, and the upper mounting block 301 is in the first mounting groove 203-1.

[0022] The first forming surface 302-1 consists of, from left to right, a first contact surface 302-1-1, a second contact surface 302-1-2, and a third contact surface 302-1-3. The third contact surface 302-1-3 is above the first contact surface 302-1-1. The second contact surface 302-1-2 is a concave, arc-shaped transition surface structure. The right side of the first contact surface 302-1-1 and the second contact surface 302-1-2 are connected by a first transition arc surface 302-1-4. Both the first contact surface 302-1-1 and the third contact surface 302-1-3 are arranged horizontally and are parallel to each other.

[0023] The upper mold shank 2 includes a first connecting arm 201, a second connecting arm 202 and a third connecting arm 203. The first connecting arm 201 is vertically fixed to one side above the second connecting arm 202, and the third connecting arm 203 is vertically fixed to one side below the second connecting arm 202. The upper mold insert 3 is installed below the third connecting arm 203. The lower mold shank 5 has the same structure as the upper mold shank 2 and will not be described again.

[0024] The lower mold insert 6 includes a lower mold core block 602 and a lower mounting block 601. Both the lower mounting block 601 and the upper mounting block 301 are rectangular structures. The lower mounting block 601 is vertically fixed below the lower mold core block 602 and is fixedly installed with the lower mold shank 5 by screws. The lower mold shank 5 is provided with a recessed second mounting groove 501 above it, and the lower mounting block 601 is located in the second mounting groove 501.

[0025] The second forming surface 602-1 consists of the fourth contact surface 602-1-1, the fifth contact surface 602-1-2, and the sixth contact surface 602-1-3 from left to right. The sixth contact surface 602-1-3 is above the fourth contact surface 602-1-1. The fifth contact surface 602-1-2 is a concave arc-shaped transition surface structure. The left side of the sixth contact surface 602-1-3 and the fifth contact surface 602-1-2 are connected by the second transition arc surface 602-1-4. The fourth contact surface 602-1-1 is parallel to the first contact surface 302-1-1, and the sixth contact surface 602-1-3 is parallel to the third contact surface 302-1-3.

[0026] During installation and use, the upper die shank 2 and the lower die shank 5 are set opposite each other in the vertical direction and are located in the working area of ​​the 3D bending equipment. The upper die shank 2 can move up and down reciprocally under the drive of the equipment, while the lower die shank 5 remains fixed. The working surfaces of the upper die insert 3 and the lower die insert 6 are designed according to the product step shape. When the two are closed, they form a cavity that matches the product step part, thereby realizing the one-time bending and forming of the product. After processing, the upper die shank 2 rises and the formed product is taken out.

[0027] Compared with the prior art, the bending step die of this application utilizes the forming surfaces with step layer structures on the upper and lower die inserts to achieve one-time bending forming of the product, effectively improving the bending efficiency of the product and ensuring the stability of product production quality. The upper and lower die inserts in this application are both detachable structures, which can be quickly positioned and locked with the upper and lower die handles respectively. Ordinary operators can complete the die replacement within 10 minutes, greatly shortening downtime. Moreover, it can be adapted to the die structure of various workpieces with different step specifications, effectively saving the die manufacturing cost.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the foregoing exemplary embodiments, 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.

[0029] 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 step die, characterized in that: The device includes an upper mold and a lower mold that mate with each other. The upper mold includes an upper mold shank and an upper mold insert, with the upper mold insert being detachably mounted below the upper mold shank. The lower mold includes a lower mold shank and a lower mold insert, with the lower mold insert being detachably mounted above the lower mold shank. The lower mold insert and the upper mold insert have the same structure and are arranged symmetrically in a vertical rotational configuration. The lower part of the upper mold insert is a first forming surface, which is a curved surface structure with stepped layers. The upper part of the lower mold insert is a second forming surface that mates with the first forming surface.

2. The bending step die according to claim 1, characterized in that: The upper mold insert includes an upper mold core block and an upper mounting block. The upper mounting block is vertically fixed above the upper mold core block and fixed to the upper mold shank by screws. The upper mold shank has a recessed first mounting groove below it, and the upper mounting block is located in the first mounting groove.

3. A bending step die according to claim 2, characterized in that: The first forming surface consists of a first contact surface, a second contact surface, and a third contact surface from left to right. The third contact surface is above the first contact surface. The second contact surface is a concave arc-shaped transition surface structure. The right side of the first contact surface and the second contact surface are connected by a first transition arc surface.

4. A bending step die according to claim 3, characterized in that: Both the first contact surface and the third contact surface are arranged along the horizontal direction, and the first contact surface and the third contact surface are parallel to each other.

5. A bending step die according to claim 4, characterized in that: The upper mold shank includes a first connecting arm, a second connecting arm, and a third connecting arm. The first connecting arm is vertically fixed to one side above the second connecting arm, and the third connecting arm is vertically fixed to one side below the second connecting arm. The upper mold insert is installed below the third connecting arm, and the lower mold shank has the same structure as the upper mold shank.

6. A bending step die according to claim 5, characterized in that: The lower mold insert includes a lower mold core block and a lower mounting block. The lower mounting block is vertically fixed below the lower mold core block and fixed to the lower mold shank by screws. A recessed second mounting groove is provided above the lower mold shank, and the lower mounting block is located in the second mounting groove.

7. A bending step die according to claim 6, characterized in that: The second forming surface consists of a fourth contact surface, a fifth contact surface, and a sixth contact surface from left to right. The sixth contact surface is above the fourth contact surface. The fifth contact surface is a concave arc-shaped transition surface structure. The left side of the sixth contact surface and the fifth contact surface are connected by a second transition arc surface. The fourth contact surface is parallel to the first contact surface, and the sixth contact surface is parallel to the third contact surface.

8. A bending step die according to claim 7, characterized in that: Both the upper and lower molds are made of either high-speed steel or mold steel.

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