Pre-bending plate shearing machine

By fixing the sheet metal with a hydraulically driven pressure plate and upper mold, and then shearing with a cutting blade, the precision problem caused by the positional movement of the sheet metal in the pre-bending shearing machine is solved, and higher shearing precision is achieved.

CN223775740UActive Publication Date: 2026-01-09ANHUI BOMEI MACHINE TOOL
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Patent Information

Application Number
CN202520329393.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-01-09
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

Existing pre-bending shearing machines are prone to plate displacement during pre-bending and shearing, leading to pre-bending deformation and affecting shearing accuracy.

Method used

A pre-bending shearing machine was designed, which uses a hydraulic rod to drive a pressure plate and an upper die to compress and fix the sheet metal, and then uses a hydraulic rod to drive a cutter to shear the sheet metal, ensuring that the sheet metal does not move during the pre-bending and shearing process.

Benefits of technology

It effectively prevents the sheet material from moving during pre-bending and shearing, thus improving shearing accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a pre-bending plate shearing machine. Comprising a base, a connecting plate is fixed to the top of the base through supporting legs, a fixing plate and a lower mold are fixed to the connecting plate, a stabilizing plate is fixed to the connecting plate through supporting rods, a first supporting plate and a second supporting plate are fixed to the stabilizing plate, and a first hydraulic rod is fixed to the bottom of the first supporting plate; a first hydraulic rod is fixed to the bottom of the first supporting plate, a cutter is fixed to the output end of the first hydraulic rod through a connecting piece, a second hydraulic rod is fixed to the bottom of the second supporting plate, a connecting piece is fixed to the bottom end of the second hydraulic rod, a pressing plate and an upper mold are fixed to the bottom end of the connecting piece, and the connecting piece is fixed to the cutter through a screw. The pre-bending plate shearing machine solves the problems that an existing pre-bending plate shearing machine is single in structure, and when pre-bending and shearing are conducted again, the position of a plate is prone to moving, so that the plate is deformed in a pre-bending mode, and shearing precision is affected.
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Description

Technical Field

[0001] This utility model relates to the field of shearing machines, and in particular to a pre-bending shearing machine. Background Technology

[0002] A pre-bending shearing machine is a metal processing equipment that integrates pre-bending and shearing functions. It uses an upper die to apply pressure to the sheet metal, causing it to undergo plastic deformation in a specific area to achieve the required bending radius. Then, through the relative movement between the upper and lower blades, a shearing force is applied to the sheet metal, causing it to break and separate along a predetermined shearing line. Existing pre-bending shearing machines have a simple structure, and the position of the sheet metal is prone to shift during pre-bending and shearing, leading to pre-bending deformation and affecting shearing accuracy.

[0003] Therefore, it is necessary to provide a pre-bending shearing machine to solve the above-mentioned technical problems. Utility Model Content

[0004] This utility model provides a pre-bending shearing machine, which solves the problem that existing pre-bending shearing machines have a simple structure, and the position of the plate is prone to move during pre-bending and shearing, resulting in pre-bending deformation of the plate and affecting the shearing accuracy.

[0005] To solve the above-mentioned technical problems, this utility model provides a pre-bending shearing machine, including a base, a connecting plate fixed to the top of the base by a support leg, and a fixing plate and a lower mold respectively fixed on the connecting plate;

[0006] A stabilizing plate is fixed to the connecting plate by a support rod. A first support plate and a second support plate are fixed to the stabilizing plate respectively. A first hydraulic rod is fixed to the bottom of the first support plate, and a cutter is fixed to the output end of the first hydraulic rod by a connecting piece.

[0007] The bottom of the second support plate is fixed with a second hydraulic rod, and the bottom end of the second hydraulic rod is fixed with a connector. The bottom end of the connector is fixed with a pressure plate and an upper mold respectively.

[0008] Preferably, the connecting piece is fixed to the cutter by screws.

[0009] Preferably, the pressure plate and the upper mold are located on both sides of the cutter.

[0010] Preferably, a groove is provided between the fixing plate and the lower mold, corresponding to the cutting blade.

[0011] Preferably, a control box is provided on the base, and the control box is provided with buttons.

[0012] Compared with related technologies, the pre-bending shearing machine provided by this utility model has the following beneficial effects:

[0013] This utility model provides a pre-bending shearing machine. The bottom end of the connecting piece drives the pressure plate and the upper die. The upper die extrudes the sheet metal and pre-bends it by cooperating with the lower die. At the same time, the pressure plate presses and fixes the sheet metal to prevent it from moving. Then, the first hydraulic rod is activated, and the connecting piece drives the cutter to cut the bent part of the sheet metal. This solves the problem of the existing pre-bending shearing machine having a simple structure, and the sheet metal is prone to move during pre-bending and cutting, which leads to pre-bending deformation and affects the cutting accuracy. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of a pre-bending shearing machine provided by this utility model;

[0015] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0016] Figure 3 for Figure 1 A magnified view of a section at point B in the middle.

[0017] The following are the labels in the diagram: 1. Base, 2. Support leg, 3. Connecting plate, 4. Fixing plate, 5. Lower mold, 6. Support rod, 7. Stabilizing plate, 8. First support plate, 9. Second support plate, 10. First hydraulic rod, 11. Connecting piece, 12. Cutter, 13. Second hydraulic rod, 14. Connector, 15. Pressure plate, 16. Upper mold, 17. Groove, 18. Control box. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please refer to the following: Figure 1-3 As shown, a pre-bending shearing machine includes a base 1, a connecting plate 3 fixed to the top of the base 1 by a support leg 2, and a fixing plate 4 and a lower mold 5 fixed on the connecting plate 3 respectively.

[0020] A stabilizing plate 7 is fixed on the connecting plate 3 by a support rod 6. A first support plate 8 and a second support plate 9 are fixed on the stabilizing plate 7 respectively. A first hydraulic rod 10 is fixed at the bottom of the first support plate 8, and a cutter 12 is fixed at the output end of the first hydraulic rod 10 by a connecting piece 11. The cutter 12 is driven by the connecting piece 11 to cut the part of the plate that has been bent.

[0021] The bottom of the second support plate 9 is fixed with a second hydraulic rod 13, and the bottom end of the second hydraulic rod 13 is fixed with a connector 14. The bottom end of the connector 14 is fixed with a pressure plate 15, an upper mold 16, and a cutter 12.

[0022] Preferably, the connecting piece 11 is fixed to the cutter 12 by screws, which facilitates the replacement of the cutter 12. The pressure plate 15 and the upper mold 16 are located on both sides of the cutter 12. The fixing plate 4 and the lower mold 5 are provided with a groove 17 corresponding to the cutter 12 to facilitate cutting. The base 1 is provided with a control box 18, and the control box 18 is provided with buttons. The second hydraulic rod 13 is activated by the buttons on the control box 18.

[0023] The working principle of the pre-bending shearing machine provided by this utility model is as follows: The plate is placed on the fixed plate 4 and the position is adjusted. The second hydraulic rod 13 is started by the button on the control box 18. The bottom end of the connecting piece 14 drives the pressure plate 15 and the upper mold 16. The upper mold 16 squeezes the plate and pre-bends the plate by cooperating with the lower mold 5. At the same time, the pressure plate 15 presses and fixes the plate to prevent it from moving. Then the first hydraulic rod 10 is started, and the cutter 12 is driven by the connecting piece 11 to cut the bent part of the plate.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pre-bending shearing machine, characterized in that, Includes a base (1), the top of which is fixed with a connecting plate (3) via a support leg (2), and a fixing plate (4) and a lower mold (5) are respectively fixed on the connecting plate (3); A stabilizing plate (7) is fixed on the connecting plate (3) by a support rod (6). A first support plate (8) and a second support plate (9) are fixed on the stabilizing plate (7). A first hydraulic rod (10) is fixed at the bottom of the first support plate (8), and a cutter (12) is fixed at the output end of the first hydraulic rod (10) by a connecting piece (11). The bottom of the second support plate (9) is fixed with a second hydraulic rod (13), and the bottom end of the second hydraulic rod (13) is fixed with a connector (14). The bottom end of the connector (14) is fixed with a pressure plate (15) and an upper mold (16).

2. The pre-bending shearing machine according to claim 1, characterized in that, The connecting piece (11) is fixed to the cutter (12) by screws.

3. A pre-bending shearing machine according to claim 1, characterized in that, The pressure plate (15) and the upper mold (16) are located on both sides of the cutter (12).

4. A pre-bending shearing machine according to claim 1, characterized in that, A groove (17) is provided between the fixing plate (4) and the lower mold (5) and corresponding to the cutter (12).

5. A pre-bending shearing machine according to claim 1, characterized in that, The base (1) is provided with a control box (18), and the control box (18) is provided with buttons.