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Workpiece straightening machine and straightening method thereof

A technology for straightening machines and workpieces, which is applied in straightening machines for shaft and rod workpieces and the field of straightening. It can solve the problems of over-bending, unsatisfactory control of bending amount and stroke of the pressure head, and insufficient bending of workpieces, etc., so as to avoid bending Insufficient, improve operation productivity, reduce the effect of precision control requirements

Inactive Publication Date: 2014-11-05
CHONGQING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the phenomenon of under-bending and over-bending of the workpiece caused by the unsatisfactory control of the amount of bending and the stroke of the pressure head during the straightening process of the existing pressure straightening machine, the invention provides a workpiece straightening machine

Method used

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  • Workpiece straightening machine and straightening method thereof
  • Workpiece straightening machine and straightening method thereof
  • Workpiece straightening machine and straightening method thereof

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 2 As shown, the workpiece straightening machine includes a follower thimble 1, a pressure head 2, a driving thimble 3, a pressure supporting pillar 4, a working slide 5, a pressure bearing plate 6, a pressure measuring component and a bending amount control device. The follow-up thimble 1, the pressure supporting pillar 4 and the driving thimble 3 are set on the working slide 5 and can move together with the working slide 5 (that is, they can move left and right), while the pressure head 2 and the pressure bearing plate 6 are opposite to the working slide 5 still. The working slide table 5 is arranged on the pressure bearing plate 6 and is slidably engaged with the pressure bearing plate 6 .

[0022] The structure of the bending amount control device is as follows: image 3 As shown, the bending amount contro...

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Abstract

The invention discloses a workpiece straightening machine which comprises a follow-up thimble, a pressing head, a driving thimble, a bearing supporting column, a work sliding table, a bearing plate, a pressure measuring part and a bending control device. The follow-up thimble, the bearing supporting column and the driving thimble are arranged on the work sliding table, and the work sliding table is in sliding fit with the bearing plate. The bending control device comprises an upper bearing block, a lower bearing block, a feeding block, a spring and a baffle, a through hole is formed in the work sliding table, and the position, below the through hole, on the bearing plate is provided with a cavity used for arranging the bending control device. Meanwhile, the invention further discloses a workpiece straightening method. In the anti-bent straightening process of shaft and rod workpieces, the bending of the workpieces and the stroke of the pressing head can be effectively controlled. It is guaranteed that deformation of the workpieces is within a preset range, and the phenomena of insufficient bending and over bending in the workpiece straightening process are avoided. Particularly to the hydraulically-driven pressing head, the precision control demand of the pressing head strokes can be effectively lowered, operation and production efficiency is improved, and the scrappage of the workpieces is reduced.

Description

technical field [0001] The invention relates to a workpiece straightening machine and a straightening method thereof, in particular to a shaft-like workpiece straightening machine and a straightening method thereof. Background technique [0002] In the straightening processing methods of shaft and rod workpieces, the reverse bending straightening method is one of the methods often used. Its straightening principle is based on the theory of elastic-plastic deformation, and the workpiece is straightened in a cold state. The working principle is to support the workpiece with original bending between two movable fulcrums of the workbench, and use the pressure head to align the most curved part for reverse bending. Through this method, the workpiece is plastically deformed, so as to achieve the purpose of straightening. [0003] At present, the amount of bending is mainly controlled by the stroke of the indenter, and the indenter is driven by hydraulic pressure or servo drive. ...

Claims

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Application Information

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IPC IPC(8): B21D3/10
Inventor 郝建军石晓辉刘子涛石钧仁李玉煌黄继鑫朱建伟
Owner CHONGQING UNIV OF TECH
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