Bending device for U-shaped product

Abstract

The utility model discloses a bending device for a U-shaped product. The bending device comprises a driving assembly and a forming assembly which are arranged up and down. The driving assembly is arranged on the upper die connecting plate and comprises a tool bit and upper wedge blocks which are symmetrically arranged, and the tail end of the tool bit is in an arc shape; the forming assembly is arranged on the base and comprises a telescopic piece and a lower wedge block which are symmetrically arranged. A cambered surface is formed on the inner side of the lower wedge block; and the tool bit moves downwards to enable the upper wedge block to abut against the lower wedge block, the lower wedge block is driven to relatively move along the telescopic piece till the tool bit is wrapped by the lower wedge block, and a U-shaped product is formed. The device has the advantages that when the tool bit presses a workpiece downwards, the upper wedge block drives the two lower wedge blocks to move relatively so as to gradually wrap the workpiece until the workpiece is formed, force is synchronously applied from the two bent ends and the center of the workpiece to reduce the stress of the tool bit, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of equipment manufacturing technology, and in particular relates to a bending device for U-shaped products. Background Technology

[0002] Bending equipment, including bending machines, is a tool used to shape and process sheet metal. This tool is composed of various parts, and different dies are made up of different parts. It primarily achieves the shaping of objects by changing the physical state of the material being formed. It is a tool used to shape blanks into parts with specific shapes and dimensions under the pressure of a bending machine.

[0003] Most existing bending devices bend workpieces, including sheet metal, into shaped parts at a certain angle, which is not suitable for processing workpieces with a certain curvature. To address this issue, existing patent CN222001363U, "An Adjustable Sheet Metal U-Shaped Bending Assembly," proposes a technical solution. This solution involves symmetrically arranging adjusting die blocks with curved surfaces on a support base, connecting the adjusting die blocks to a fixed base. The two adjusting die blocks provide the curved surface for forming the workpiece, and then the upper die cutter head above the adjusting die blocks presses down on the workpiece to bend it into a U-shape; simultaneously, the bottom end of the upper die cutter head is arc-shaped. In this prior art, the formed workpiece is mainly obtained through hard contact between the pressing cutter head and the adjusting die blocks, which causes a certain degree of wear on the pressing cutter head and the adjusting die blocks during use.

[0004] To address the aforementioned problems, designing a bending device for U-shaped products is an important technical issue that those skilled in the art need to solve. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems in the prior art and to provide a bending device for U-shaped products.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A bending device for U-shaped products includes a driving assembly and a forming assembly arranged vertically. The driving assembly is mounted on an upper die connecting plate and includes a cutting head and symmetrically arranged upper wedges, the end of which is arc-shaped. The forming assembly is mounted on a base and includes symmetrically arranged telescopic members and lower wedges. The inner side of the lower wedge has an arc surface. The cutting head moves downward to abut the upper wedges against the lower wedges, and drives the lower wedges to move relative to each other along the telescopic members until the lower wedges wrap around the cutting head, thus forming a U-shaped product.

[0008] Preferably, the upper wedges are symmetrically arranged on both sides of the cutter head; in the initial state, the two lower wedges are spaced apart, and the distance between the top surfaces of the two lower wedges is less than the maximum distance between the upper wedges; in the forming state, the two lower wedges abut against each other, and the maximum distance between the two upper wedges is equal to the maximum distance between the two lower wedges.

[0009] Preferably, the top surface of the upper die connecting seat is connected to the bending machine via a connecting block, and the bending machine drives the driving assembly to descend.

[0010] Preferably, the top surface of the lower wedge is formed with a placement groove for placing the product to be molded.

[0011] Preferably, a limiting block protruding from its upper surface is formed on the base, and in the initial state, the side wall of the lower wedge block abuts against the inner side of the limiting block.

[0012] Preferably, the outer side of the limiting block abuts against and is fixed to the mounting block, and the telescopic member passes through the mounting block and is fixedly connected to the lower wedge block.

[0013] Preferably, the telescopic component includes a connecting bolt passing through the mounting block and a disc spring sleeved on the connecting bolt; both ends of the disc spring abut against the connecting bolt and the mounting block.

[0014] The advantages of this utility model's technical solution are mainly reflected in:

[0015] While the cutter head presses down on the workpiece, the upper wedge block drives the two lower wedge blocks to move relative to each other to gradually wrap around the workpiece until it is formed. Force is applied synchronously from both ends and the center of the workpiece bending to reduce the stress on the cutter head and extend the service life of the equipment. The entire process only requires one pressure to complete the workpiece forming, reducing manual intervention and lowering costs.

[0016] During the processing, the telescopic component constantly exerts a certain pulling force on the lower wedge, forming a flexible force during the machining of the workpiece by the lower wedge, thereby reducing damage to the lower wedge and the cutting head; at the same time, the telescopic component can quickly reset the lower wedge after the workpiece is machined and formed.

[0017] A placement groove is set on the top surface of the lower wedge to limit the position of the workpiece, effectively preventing workpiece displacement and improving workpiece forming quality. Attached Figure Description

[0018] Figure 1 : Initial state structural diagram of the preferred embodiment of this utility model;

[0019] Figure 2 : A structural diagram of the processing state of a preferred embodiment of this utility model;

[0020] Figure 3: A structural diagram of the molding state of a preferred embodiment of this utility model. Detailed Implementation

[0021] The purpose, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this utility model, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

[0022] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0023] This utility model discloses a bending device for U-shaped products, including as follows: Figure 1 The diagram shows a drive assembly 1 and a forming assembly 2 arranged vertically. The drive assembly 1 moves relative to the forming assembly 2 to cause the workpiece, including sheet metal parts, to bend under pressure. The bending process can be completed in a single stamping operation, achieving highly efficient forming.

[0024] Specifically, such as Figure 1 The drive assembly 1 shown is mounted on the upper die connecting plate 10 and includes a cutter head 11 and symmetrically arranged upper wedge blocks 12, wherein the end of the cutter head 11 is arc-shaped. Further, the top surface of the upper die connecting plate 10 is connected to a bending machine via a connecting block 13, and the bending machine drives the drive assembly 1 to descend. The upper wedge blocks 12 are symmetrically arranged on both sides of the cutter head 11.

[0025] like Figure 2 The molding component 2 shown is disposed on the base 20, which is a flat plate on which a limiting block 201 protruding from the upper surface is formed.

[0026] like Figures 2 to 3As shown, the forming component 2 includes symmetrically arranged telescopic members 21 and lower wedges 22, wherein the inner side of the lower wedge 22 has an arc surface 221. The bending machine drives the cutter head 11 to move downward, causing the upper wedge 12 to abut against the lower wedge 22, and the upper wedge 12 drives the lower wedge 22 to move relative to the telescopic member 21 until the lower wedge 22 wraps around the cutter head 11, forming a U-shaped product. That is, in the initial state, the sidewall of the lower wedge 22 abuts against the inner side of the limiting block 201; the two lower wedges 22 are spaced apart, and the distance between the top surfaces of the two lower wedges 22 is less than the maximum distance between the upper wedges 12. In the forming state, the two lower wedges 22 abut against each other, and the maximum distance between the two upper wedges 12 is equal to the maximum distance between the two lower wedges 22.

[0027] Furthermore, the arc surface 221 on the inner side of the lower wedge block 22 and the arc of the end of the cutter head 11 can be adjusted or replaced according to processing requirements. The equipment has high overall versatility and can be adapted to the bending requirements of workpieces of different specifications.

[0028] It also includes a processing state, in which the upper wedge 12 and the cutter head 11 move toward the lower wedge 22, the upper wedge 12 abuts against the lower wedge 22, and gradually drives the lower wedge 22 to move relative to each other until the forming state is reached.

[0029] Furthermore, such as Figures 2 to 3 As shown, the top surface of the lower wedge 22 forms a placement groove 220 for placing the product to be molded. The placement groove 220 on the top surface of the lower wedge 22 defines the position of the workpiece, effectively preventing workpiece displacement and improving the workpiece molding quality.

[0030] like Figure 1 As shown, the outer side of the limiting block 201 abuts against and is fixed to the mounting block 210. The telescopic member 21 passes through the mounting block 210 and is fixedly connected to the lower wedge block 22. The telescopic member 21 includes a connecting bolt 211 passing through the mounting block 210 and a disc spring 212 sleeved on the connecting bolt 211. The two ends of the disc spring 212 abut against the connecting bolt 211 and the mounting block 210. In the processing and forming states, the upper wedge block 12 drives the lower wedge block 22 to move relative to each other, while simultaneously driving the connecting bolt 211 to move synchronously, causing the disc spring 212 to gradually retract. The disc spring 212 drives the lower wedge block 22 to reset after the workpiece is formed. The entire process is automated, reducing manual intervention and lowering costs.

[0031] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A bending device for U-shaped products, characterized in that: The device includes a driving assembly (1) and a forming assembly (2) arranged vertically. The driving assembly (1) is located on the upper mold connecting plate (10) and includes a cutting head (11) and symmetrically arranged upper wedges (12). The end of the cutting head (11) is arc-shaped. The forming assembly (2) is located on the base (20) and includes symmetrically arranged telescopic members (21) and lower wedges (22). The inner side of the lower wedges (22) has an arc surface (221). The cutting head (11) moves down to make the upper wedges (12) abut against the lower wedges (22) and drive the lower wedges (22) to move relative to each other along the telescopic members (21) until the lower wedges (22) wrap around the cutting head (11) and form a U-shaped product.

2. The U-shaped product bending apparatus according to claim 1, characterized by: The upper wedge (12) is symmetrically arranged on both sides of the cutter head (11); in the initial state, the two lower wedges (22) are spaced apart, and the distance between the top surfaces of the two lower wedges (22) is less than the maximum distance between the upper wedges (12); in the forming state, the two lower wedges (22) abut together, and the maximum distance between the two upper wedges (12) is equal to the maximum distance between the two lower wedges (22).

3. The U-shaped product bending apparatus according to claim 2, characterized in that: The top surface of the upper mold connecting plate (10) is connected to the bending machine through the connecting block (13), and the bending machine drives the driving assembly (1) to descend.

4. The bending device for U-shaped products according to claim 3, characterized in that: The top surface of the lower wedge (22) forms a placement groove (220) for placing the product to be molded.

5. The bending device for U-shaped products according to claim 4, characterized in that: A limiting block (201) protruding from its upper surface is formed on the base (20). In the initial state, the side wall of the lower wedge (22) abuts against the inner side of the limiting block (201).

6. The bending device for U-shaped products according to claim 5, characterized in that: The outer side of the limiting block (201) abuts against and is fixed to the mounting block (210), and the telescopic member (21) passes through the mounting block (210) and is fixedly connected to the lower wedge block (22).

7. The bending device for U-shaped products according to claim 6, characterized in that: The telescopic component (21) includes a connecting bolt (211) that passes through the mounting block (210) and a disc spring (212) sleeved on the connecting bolt (211); the two ends of the disc spring (212) abut against the connecting bolt (211) and the mounting block (210).

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