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Pipe bender and avoidance type connected main clamp mechanism for same

A tube bending machine and one-piece technology, applied in the field of cold bending processing, can solve the problems that the clamping stability cannot be guaranteed, the surface quality cannot be guaranteed, and the quality of pipe bending is reduced, so as to ensure the quality of pipe bending and ensure the bending of pipes Quality, the effect of ensuring the bending quality of profiles

Inactive Publication Date: 2013-05-29
ZHEJIANG KING MAZON MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current main clamping method of the pipe bending machine usually adopts a translational pair clamp, and its clamping force is borne by two mechanisms facing each other. Affected by the rigidity of the two mechanisms, there is usually deformation of the mechanism, so that the clamping parallelism of the main clamping mechanism is within During the clamping process, it changes with the change of the clamping force, so that the clamping stability cannot be guaranteed, thereby reducing the quality of the pipe bending
In addition, the translational main clamp mechanism is easy to pinch the shape of the tube when clamping the square tube, resulting in that the surface quality of the tube after bending cannot be guaranteed.

Method used

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  • Pipe bender and avoidance type connected main clamp mechanism for same
  • Pipe bender and avoidance type connected main clamp mechanism for same
  • Pipe bender and avoidance type connected main clamp mechanism for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 , figure 2 The shown avoidance-type one-piece main clamping mechanism for a pipe bender is used for clamping a square pipe 14 when it is bent, and includes a diameter die 15 installed coaxially with the rotating spindle of the pipe bender. The diameter die 15 A conjoined support 20 is installed above the conjoined support 20, a power cylinder 1 is installed on the top of the conjoined support 20, and the power cylinder 1 is flexibly connected with the conjoined support 20. A swing clamp 11 is installed on the outside of the conjoined support 20, and the swing clamp 11 The middle section is hinged with the connected bracket 20, the upper end of the swing clamp 11 is flexibly connected with the piston rod 7 of the power cylinder 1, and the lower end of the swing clamp 11 is an outer jaw with a clamping outer wall 112 and a clamping top wall 111 , the inner jaws corresponding to the outer jaws are provided on the diameter mold 15, the inner jaws include ...

Embodiment 2

[0024] Such as image 3 The shown avoidance-type one-piece main clamping mechanism for a pipe bender is used for clamping rectangular pipes when bending. The difference from Embodiment 1 is that the swing axis of the swing clamp 11 is located at the Hold the inner side of the extension surface of the inner wall 151 and the vertical distance from the swing axis of the swing clamp 11 to the extension surface of the clamping inner wall 151 is smaller than the wall thickness of the bent profile.

Embodiment 3

[0026] Such as Figure 4 The shown avoidance-type conjoined main clamping mechanism for pipe benders is used for clamping angle steel when it is bent. The only difference from Embodiment 1 is that the lower end of the swing clamp 11 has a clamping outer wall 112 and an outer jaw clamping the top wall 111 are protrusions, rather than recesses.

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Abstract

The invention discloses a pipe bender and an avoidance type connected main clamp mechanism for the same. The avoidance type connected main clamp mechanism comprises a diameter die, wherein a connected bracket is arranged above the diameter die, a power cylinder is arranged above the connected bracket, the power cylinder is movably connected with the connected bracket, a swinging clamp is arranged on the outer side of the connected bracket, the middle section of the swinging clamp is hinged with the connected bracket, the upper end of the swinging clamp is movably connected with a piston rod of the power cylinder, the lower end of the swinging clamp is provided with an outer clamp opening with an outer clamping side wall and a clamping top wall, the diameter die is provided with an inner clamp opening corresponding to the outer clamp opening, the inner clamp opening comprises an inner clamping side wall and a clamping bottom wall, the outer clamp opening and the inner clamp opening form a clamping structure for clamping a bent section bar, wherein the swinging plane of the swinging clamp is vertical to the pipe-bending plane of a pipe bender. Therefore, when the power cylinder works, the swinging clamp makes an arc motion along a hinge fulcrum, therefore, a pipe can be clamped for being bent. The technical scheme has the advantage of good pipe-bending quality.

Description

technical field [0001] The invention belongs to the technical field of cold bending, and in particular relates to an avoidance type conjoined main clamping mechanism for a pipe bending machine, which is mainly suitable for cold bending of pipe fittings or profiles with right-angled side walls such as square pipes, rectangular pipes, and angle steels. Bending processing. Background technique [0002] The current main clamping method of the pipe bending machine usually adopts a translational pair clamp, and its clamping force is borne by two mechanisms facing each other. Affected by the rigidity of the two mechanisms, there is usually deformation of the mechanism, so that the clamping parallelism of the main clamping mechanism is within During the clamping process, it changes with the change of the clamping force, so that the clamping stability cannot be guaranteed, thereby reducing the quality of the pipe bending. In addition, the translational main clamping mechanism is eas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D11/22
Inventor 赵浩兴林伟明陈朝阳苏雪莲夏杨建
Owner ZHEJIANG KING MAZON MACHINERY