Traceless bending clamp

Abstract

The utility model relates to a traceless bending clamp which comprises a machine body, the front end of the machine body is fixedly provided with a supporting block and rotationally connected with a rotating shaft, the machine body is internally provided with a power device for driving the rotating shaft to rotate, the end of the rotating shaft is fixedly provided with a clamping arm, the free end of the clamping arm is fixedly provided with a pressing block, and the bottom of the pressing block is embedded with a flexible pressing pipe. A workpiece is clamped through the flexible pressing pipe and the supporting block. According to the utility model, the bottom clamping end of the pressing block is embedded into the flexible pressing pipe, the gap after the jaw of the clamp is closed is adjusted, the clamping of a workpiece is realized, and the flexible pressing pipe has certain flexibility relative to the surface of a processed part, so that the flexible pressing pipe can play a protection role when being in contact with the workpiece, the workpiece is prevented from being scratched, and the workpiece is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a traceless bending clamp. Background Art

[0002] The clamp for sheet metal drives the clamping arm to press down through a power device, so that the gap between the pressing block and the supporting block is reduced to realize the clamping of the sheet metal. The main defects in the prior art are as follows: there are several defect problems in the existing solutions: 1. It is only applicable to workpieces with no surface requirements: the surface of the clamp jaw of the existing clamp is not protected. When the clamp jaw is closed and the jaw contacts the workpiece, the workpiece is easily scratched. If a workpiece with surface requirements is scratched, the workpiece will be scrapped; 2. It is only applicable to small and light workpieces: the friction coefficient of the material of the clamp jaw of the existing clamp is low. Once a heavy workpiece appears, when the clamp jaw is closed, the workpiece cannot be clamped tightly and displacement occurs, which is extremely likely to cause the workpiece to collide with the equipment. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a traceless bending clamp.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The traceless bending clamp includes a body. A supporting block is fixed at the front end of the body and a rotating shaft is rotatably connected. A power device for driving the rotating shaft to rotate is arranged inside the body. A clamping arm is fixed at the end of the rotating shaft, and a pressing block is fixed at the free end of the clamping arm. A soft pressing tube is nested at the bottom of the pressing block, and the workpiece is clamped by the soft pressing tube and the supporting block.

[0006] Further, an uneven buckling structure is adopted between the bottom of the pressing block and the soft pressing tube.

[0007] Further, the bottom surface of the soft pressing tube is an arc surface or a flat surface.

[0008] Further, it is formed by using aluminum, copper, ABS, PP, PVC, POM, PU, rubber, silicone rubber, nylon, bakelite (phenolic resin), polyimide, polyetheretherketone (PEEK), polyphenylene sulfide (PPS) or polysulfone (PSU), etc.

[0009] Further, the end of the rotating shaft is a square part, and the V-shaped groove at the end of the clamping arm is nested on the square part and locked and fixed by a V-shaped locking block.

[0010] The utility model adopts the method of embedding the bottom clamping end of the pressing block into the soft pressing tube, adjusts the gap after the clamp jaw is closed, and realizes the clamping of the workpiece. Compared with the prior art, it has the following beneficial effects:

[0011] 1. The flexible pressing tube has a certain flexibility relative to the surface of the processed part. When contacting the workpiece, it can play a protective role, prevent the workpiece from being scratched and leaving marks, and protect the workpiece.

[0012] 2. The flexible pressing tube can be quickly replaced. By replacing the flexible pressing tubes with different thicknesses, the closing gap of the clamp jaws can be changed, enabling the clamp jaws to hold workpieces with different thicknesses and improving the plate thickness compatibility range of the clamp jaws. Brief Description of the Drawings

[0013] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific embodiments:

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the connection structure between the pressing block and the flexible pressing tube (wherein, the bottom surface of the flexible pressing tube is an arc surface);

[0016] Figure 3 It is a schematic diagram of the flexible pressing tube with a square structure. Specific Embodiment

[0017] As Figures 1-3 shown, the traceless bending clamp of the present utility model includes a body 1. A support block 2 is fixed at the front end of the body 1 and a rotating shaft 3 is rotatably connected. A power device for driving the rotation of the rotating shaft 3 is provided inside the body 1. A clamping arm 4 is fixed at the end of the rotating shaft 3. Specifically, the end of the rotating shaft 3 is a square portion, and the V-shaped groove at the end of the clamping arm 4 is nested on the square portion and locked and fixed by a V-shaped locking block 5.

[0018] A pressing block 6 is fixed at the free end of the clamping arm 4. A flexible pressing tube 7 is nested at the bottom of the pressing block 6. The workpiece is clamped by the flexible pressing tube 7 and the support block 2 (the rotating shaft 3 controls the movement of the clamping arm 4, driving the pressing block 6 to press down, reducing the gap between the flexible pressing tube 7 and the support block 2, thereby clamping the workpiece between the flexible pressing tube 7 and the support block 2).

[0019] An uneven buckling structure is adopted between the bottom of the pressing block 6 and the flexible pressing tube 7. As a connection structure, a spherical portion 61 is provided at the bottom of the pressing block 6, and the flexible pressing tube 7 is nested on the spherical portion 61. This design enables the flexible pressing tube 7 to be quickly disassembled and replaced. Of course, other buckling methods can also be used. For example, a keyway, dovetail or other uneven mating structures can also be adopted between the bottom of the pressing block 6 and the flexible pressing tube 7 to ensure the tight fit between the flexible pressing tube 7 and the bottom of the pressing block 6.

[0020] By replacing the flexible pressing tubes 7 with different thicknesses, the closing gap of the clamp jaws can be changed, enabling the clamp jaws to hold workpieces with different thicknesses and improving the plate thickness compatibility range of the clamp jaws.

[0021] According to the actual production requirements, the bottom surface of the flexible pressing tube 7 can be an arc surface or a flat surface. When the bottom surface of the flexible pressing tube 7 is a flat surface, the flexible pressing tube 7 as a whole presents a square structure.

[0022] The flexible material selected for the flexible pressing tube 7 can be a material with a surface hardness lower than that of the machined part. The available materials include, but are not limited to, aluminum, copper, ABS, PP, PVC, POM, PU, rubber, silicone rubber, nylon, bakelite (phenolic resin), polyimide, polyether ether ketone (PEEK), polyphenylene sulfide (PPS), or polysulfone (PSU), etc., so as to ensure that the flexible pressing tube 7 has a certain flexibility relative to the surface of the machined part, can play a protective role when contacting the workpiece, prevent the workpiece from being scratched and leaving marks, and protect the workpiece.

[0023] The specific implementation manners of the present invention have been described above. However, those skilled in the art should understand that this is only an example. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to this implementation manner, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A seamless bending clamp, comprising a body, a support block fixed to the front end of the body and a rotating shaft connected thereto, a power device for driving the rotating shaft to rotate inside the body, a clamping arm fixed to the end of the rotating shaft, a pressure block fixed to the free end of the clamping arm, characterized in that: A soft pressing tube is embedded in the bottom of the pressing block, and the workpiece is clamped by the soft pressing tube and the supporting block.

2. The seamless bending clamp according to claim 1, characterized in that: A concave-convex buckling structure is adopted between the bottom of the pressing block and the soft pressing tube.

3. The seamless bending clamp according to claim 1, characterized in that: The bottom surface of the flexible pressure tube is an arc-shaped surface or a flat surface.

4. The seamless bending clamp according to claim 1, characterized in that: The flexible press tube is formed by aluminum, copper, ABS, PP, PVC, POM, PU, ​​rubber, nylon, bakelite, polyimide, polyetheretherketone, polyphenylene sulfide or polysulfone.

5. The seamless bending clamp according to claim 1, characterized in that: The end of the rotating shaft is a square portion, and the V-shaped groove at the end of the clamp arm is nested in the square portion and is locked and fixed by a V-shaped locking block.

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