Plate bending die

Abstract

The utility model discloses a plate bending die which comprises a base, a plurality of replaceable angle blocks and a pressing plate, a first contact surface is arranged on the base, the angle blocks are detachably connected with the base, the first contact surface and the angle blocks clamp a plate, a second contact surface is arranged on the angle blocks, and the pressing plate is detachably connected with the first contact surface. The angle block is provided with a plurality of second contact faces, the second contact faces incline by a certain angle on the angle block, the inclination angles of the multiple second contact faces are different, one end of the pressing plate is rotationally connected with the base, the pressing plate is provided with a third contact face, and the third contact face pushes the plate to be bent to make contact with the second contact faces. The utility model provides a plate bending die which is convenient for workers to operate and bend plates and is suitable for small-batch low-cost plate bending production.

Description

A die for bending sheet metal Technical Field

[0001] This utility model relates to the field of metal parts processing, and in particular to a die for bending sheet metal. Background Technology

[0002] Sheet metal processing is a comprehensive cold working process for metal sheets (usually less than 6mm), including shearing, punching / cutting / combined cutting, bending, welding, riveting, splicing, forming, etc. Its significant feature is that the thickness of the same part is consistent. Products processed by sheet metal processing are called sheet metal parts, and thin sheet metal parts often need to be bent using large equipment after processing.

[0003] However, when bending sheet metal into narrow, unconventional U-shaped angles, it is necessary to make matching molds for bending. If the sheet metal with unconventional angles is produced in small batches, the cost of making special molds is high and the cost-effectiveness is low, which is not conducive to the small-batch bending production of sheet metal with unconventional angles. Summary of the Invention

[0004] The purpose of this utility model is to provide a die for bending sheet metal, which has a simple structure, is easy for workers to operate and bend sheet metal, and is suitable for small-batch, low-cost sheet metal bending production.

[0005] The technical solution adopted by the sheet metal bending die disclosed in this utility model is:

[0006] The device includes a base, multiple replaceable angle blocks, and a pressure plate. The base has a first contact surface, and the angle blocks are detachably connected to the base. The first contact surface and the angle blocks clamp the sheet metal. The angle blocks have a second contact surface that is tilted at a certain angle. The tilt angles of the multiple second contact surfaces are different. One end of the pressure plate is rotatably connected to the base, and the pressure plate has a third contact surface that pushes the sheet metal to bend and contact the second contact surface.

[0007] As a preferred embodiment, the base is embedded with multiple limiting blocks, which are located on both sides of the plate, and one of the angle blocks is detachably connected to the limiting block.

[0008] As a preferred embodiment, the angle of inclination of the plurality of second contact surfaces can range from 0° to less than 90°.

[0009] As a preferred embodiment, the connection between the pressure plate and the base is higher than the first contact surface.

[0010] The beneficial effects of the sheet metal bending mold disclosed in this utility model are:

[0011] First, bend the sheet metal at 90° and replace it with an angle block that meets the bending angle requirements. Then, place the sheet metal on the first contact surface. The angle block connects to the base and clamps the sheet metal. Rotate the pressure plate so that the third contact surface of the pressure plate pushes the sheet metal to bend, thereby contacting the second contact surface of the angle block. This achieves the bending of the sheet metal into a narrow, unconventional U-shaped angle. Furthermore, the angle block can be replaced with the corresponding angle according to the bending angle requirements of the sheet metal, and the angle block can be replaced with the corresponding thickness according to the width requirements of the U-shaped bending. This allows the mold to adapt to the bending requirements of more sheet metals simply by changing the angle block, reducing the cost of small-batch sheet metal bending production. Attached Figure Description

[0012] Figure 1 is a structural schematic diagram of a plate bending mold according to this utility model.

[0013] Figure 2 is a schematic diagram of the installation of the base and angle block of a plate bending mold according to this utility model.

[0014] Figure 3 is a structural schematic diagram of the angle change block of a sheet metal bending mold of the present invention, with an angle greater than 0°. Detailed Implementation

[0015] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0016] Please refer to Figures 1-3.

[0017] The present invention discloses a die for bending sheet metal, comprising a base 1, multiple replaceable angle blocks 2 and a pressure plate 3;

[0018] In this embodiment, the base 1 is preferably L-shaped, and the base 1 is provided with a first contact surface 111, which is located at the long end of the L-shaped base 1; the base 1 is provided with four mounting holes, which are respectively close to the two sides of the base 1, and one mounting hole is far away from the other four mounting holes; a plurality of limiting blocks 12 are embedded in the base 1, and in this embodiment, four limiting blocks 12 are preferably provided, which correspond to the four mounting holes. The limiting blocks 12 are embedded in the mounting holes of the base 1 and are located in the first contact surface 111.

[0019] Angle block 2 is provided with a second contact surface 211. The second contact surface 211 is tilted at a certain angle on angle block 2. The tilt angles of multiple second contact surfaces 211 are different. In this embodiment, it is preferred that the tilt angles of multiple second contact surfaces 211 can be from 0° to less than 90°, so that the user can replace the angle block 2 with the corresponding angle according to the angle of the sheet 4 bent into a U-shape, reducing the cost of replacing mold parts.

[0020] Furthermore, the angle block 2 is provided with multiple through holes. In this embodiment, four through holes are preferred. The through holes penetrate the angle block 2, and one through hole is away from the other three through holes. One angle block 2 is placed on the first contact surface 111, and the limiting block 12 is slidably inserted into the adjacent through hole. One angle block 2 is detachably connected to the limiting block 12 of the base 1 through the through hole.

[0021] The plate 4 is first bent to 90° and placed on the first contact surface 111. Four limiting blocks 12 are located on both sides of the plate 4. The 90° bend of the plate 4 touches the right angle of the L-shaped base 1. One of the angle blocks 2 is placed on the first contact surface 111. The limiting block 12 slides into the adjacent through hole and limits the angle block 2 on the base 1. Since the position of one of the limiting blocks 12 is offset from the other three limiting holes, it plays a role in preventing the angle block 2 from being fooled when placed on the base 1. The base 1 uses the first contact surface 111 and the angle block 2 to clamp the plate 4.

[0022] One end of the pressure plate 3 is rotatably connected to the base 1. The pressure plate 3 rotates closer to the angle block 2 or rotates away from the angle block 2. The connection between the pressure plate 3 and the base 1 is higher than the first contact surface 111. The connection between the pressure plate 3 and the base 1 is located at the short end of the L-shaped base 1. The pressure plate 3 is provided with a third contact surface 311.

[0023] After the base 1 and the angle block 2 clamp the plate 4, the pressure plate 3 is rotated. The third contact surface 311 of the pressure plate 3 pushes the plate 4 to bend at a certain angle and then contacts the second contact surface 211, thereby realizing the bending of the plate 4. The pressure plate 3 is located between the four limit blocks 12. After the bending of the plate 4 is completed, the pressure plate 3 is rotated away from the angle block 2, and the angle block 2 is moved to remove the bent plate 4 from the base 1. The angle block 2 is pulled out from the U-shape of the plate 4 to complete the bending process of the plate 4.

[0024] Users can replace the angle block 2 with the corresponding thickness and angle according to the width and angle of the sheet metal when bending it into a U-shape, thereby reducing the cost of replacing mold parts and reducing the cost of small-batch sheet metal bending production.

[0025] This utility model provides a die for bending sheet metal. First, the sheet metal is bent at 90°. Then, an angle block that meets the bending angle requirements is replaced. The sheet metal is then placed on the first contact surface. The angle block is connected to the base and clamps the sheet metal. Rotating the pressure plate causes the third contact surface of the pressure plate to push the sheet metal to bend, thereby contacting the second contact surface of the angle block. This achieves bending the sheet metal into a narrow, unconventional U-shaped angle. Furthermore, the angle block can be replaced with the corresponding angle according to the bending angle requirements of the sheet metal. The angle block can also be replaced with the corresponding thickness according to the width requirements of the U-shaped bending. This allows the die to adapt to the bending requirements of more sheet metals simply by changing the angle block, reducing the cost of small-batch sheet metal bending production.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A die for bending sheet metal, characterized in that, The device includes a base, multiple replaceable angle blocks, and a pressure plate. The base has a first contact surface, and the angle blocks are detachably connected to the base. The first contact surface and the angle blocks clamp the sheet metal. The angle blocks have a second contact surface, which is tilted at a certain angle. The tilt angles of the multiple second contact surfaces are different. One end of the pressure plate is rotatably connected to the base, and the pressure plate has a third contact surface. The third contact surface pushes the sheet metal to bend and contact the second contact surface.

2. The die for bending sheet metal as described in claim 1, characterized in that, The base is embedded with multiple limiting blocks, which are located on both sides of the plate. One of the angle blocks is detachably connected to the limiting block.

3. The die for bending sheet metal as described in claim 2, characterized in that, The angle at which the multiple second contact surfaces are tilted can range from 0° to less than 90°.

4. The die for bending sheet metal as described in claim 3, characterized in that, The connection between the pressure plate and the base is higher than the first contact surface.

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