Workpiece straightening machine

A technology for straightening machines and workpieces, which is applied in the field of straightening devices for bending and deforming workpieces. It can solve the problems of poor overall effect, insufficient straightening, and low work efficiency, and achieve stable and reliable operation quality, consistent heat treatment process, and improved work efficiency. efficiency effect

Pending Publication Date: 2018-01-05
XUZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with manual straightening is that the hydraulic press control valve or electrical switch is manually operated to control the pressure head of the hydraulic press, and the downward stroke depends entirely on the operator's experience and on-the-spot reaction.
If the pressure range is too large during ope

Method used

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Examples

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Example Embodiment

[0019] The technical solutions in the embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0020] The invention relates to a workpiece straightening machine, comprising a general hydraulic press (16), a special indenter (15), a special fixture for straightening, a base plate (1), an indenter travel limiting device and the like. like figure 2 As shown, the general hydraulic press (16) is vertical, that is, the hydraulic cylinder is arranged vertically; the special pressure head (15) is rigidly fixed on the lower end of the piston rod of the hydraulic press, and can move up and down synchronously with the piston rod; the base plate (1) is installed and fixed on the hydraulic press The upper surface of the working table is fixedly installed with a special fixture for alignment and a stroke limit device of the indenter.

[0021] The special fixture for straightening includes a fixture bracket (27), a rocker arm...

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PUM

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Abstract

The invention discloses a workpiece straightening machine. The workpiece straightening machine is used for straightening bending and deformation of slender shafts, and comprises a universal oil press,a straightening special pressing head, a straightening special fixture and a pressing head travel limiting device. The straightening special pressing head is fixedly connected to the outer end of a piston rod of the oil press. The straightening special fixture comprises a fixture support, a rocker arm, an upper positioning block, a lower positioning block, a connecting rod, an air cylinder and apneumatic control device. According to the workpiece straightening machine, a needed hand wheel rotation angle can be looked up from a "workpiece tortuosity-anti-bending deformation-hand wheel rotation angle" form which is concluded from previous straightening practices according to the measured bending deformation of a to-be-straightened workpiece, the hand wheel is adjusted manually to the corresponding rotation angle, the oil press is started to press downwards, and then the straightening work can be completed. The operation process is manually digitalized, the working efficiency and the straightening precision are improved, and the rejection rate is decreased and the experience requirement for an operator is lowered.

Description

technical field [0001] The invention relates to a straightening device for bending and deforming a workpiece, in particular to a straightening device and a straightening method for bending and deforming a circular shaft-type slender workpiece after rough machining by heat treatment. Background technique [0002] The slender shaft is prone to bending deformation, especially after heat treatment, it often produces large deformation due to the change of internal stress, and this bending deformation can even reach several millimeters. If such a large bending deformation is not straightened, in the subsequent machining, the workpiece will be eccentric or one side will be overcut and the other side will be left with gray skin, resulting in the scrapping of the parts. Therefore, such workpieces often need to be straightened before subsequent processing. [0003] At present, most of the straightening methods for slender shaft parts are manual reverse bending straightening. The pro...

Claims

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Application Information

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IPC IPC(8): B21D3/10
Inventor 季广中
Owner XUZHOU NORMAL UNIVERSITY
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