Drawing fixture of rectangular tubular workpiece

A technology for tubular and workpieces, which is applied in the field of drawing fixtures for testing the welding strength of tubular workpieces, can solve problems such as unstable clamping, and achieve the effects of balanced force, increased load, and strong operational practicability

Pending Publication Date: 2019-01-25
TIANJIN JINRONG TIANYU PRECISION MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing detection devices are usually general-purpose. Although the clamping device is suitable for various conventional components, because it is general-purpose, when clamping closed tubular welded components, there may be a possibility of unstable clamping

Method used

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  • Drawing fixture of rectangular tubular workpiece
  • Drawing fixture of rectangular tubular workpiece
  • Drawing fixture of rectangular tubular workpiece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A drawing fixture for a rectangular tubular workpiece, the length of the workpiece to be measured is 20cm, the relative outer distance of the two first cantilevers is 35cm, the relative inner distance is 20.05cm, the distance between the top of the first tension seat and the lower part of the first groove is 30cm, the horizontal arm of the first cantilever is provided with a first chamfer along the width direction, and the gap between the first boss and the first vertical arm is 8.05cm. The relative outer distance of the two second cantilevers is 35cm, the relative inner distance is 20cm, the distance between the bottom of the second tension seat and the upper part of the second groove is 30cm, and the horizontal arm of the second cantilever is provided with a third chamfer along the width direction. The gap between the second boss and the second vertical arm is 8.05cm. Pass the first clamping block and the second clamping block through the through hole in the middle of...

Embodiment 2

[0033]A drawing fixture for a rectangular tubular workpiece, the length of the workpiece to be measured is 25cm, the relative outer distance of the two first cantilevers is 40cm, the relative inner distance is 25.05cm, the distance between the top of the first tension seat and the lower part of the first groove is 30cm, the horizontal arm of the first cantilever is provided with a first chamfer along the width direction, and the gap between the first boss and the first vertical arm is 10.05cm. The relative outer distance of the two second cantilevers is 40cm, the relative inner distance is 25.05cm, the distance between the bottom of the second tension seat and the upper part of the second groove is 30cm, and the horizontal arm of the second cantilever is provided with a third chamfer along the width direction , the gap between the second boss and the second vertical arm is 10.05cm. First, pass the first clamping block and the second clamping block through the through hole in t...

Embodiment 3

[0035] A drawing fixture for a rectangular tubular workpiece. The length of the workpiece to be measured is 30cm. The relative outer distance between two first cantilevers is 40cm, and the relative inner distance is 30.05cm. The horizontal arm of the first cantilever is provided with a first For chamfering, the gap between the first boss and the first vertical arm is 10cm. The relative outer distance of the two second cantilevers is 40cm, and the relative inner distance is 30.05cm. The horizontal arm of the second cantilever is provided with a third chamfer along the width direction, and the gap between the second boss and the second vertical arm is 10.05cm. First, pass the first clamping block and the second clamping block through the through hole in the middle of the workpiece to be tested. The side of the first clamping block without the first fixing groove is in contact with the inner surface of the upper part of the workpiece, and the second clamping block has no One sid...

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PUM

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Abstract

The invention discloses a drawing fixture of a rectangular tubular workpiece. The drawing fixture comprises a first clamping device and a second clamping device which are reflectionally symmetrical, the first clamping device comprises first clamping pincers, a first drawing rod, a first clamping block and two reinforcing sheets, and the second clamping device comprises second clamping pincers, a second drawing rod, a second clamping block and two reinforcing sheets. The first drawing rod and the second drawing rod are respectively connected with a clamping part of a detecting device. The drawing fixture can achieve effective and stable clamping of the rectangular tubular workpiece when welding strength is detected.

Description

technical field [0001] The invention relates to a drawing fixture for a tubular workpiece, in particular to a drawing fixture for testing the welding strength of the tubular workpiece. Background technique [0002] There are many types of closed tubular parts in the automotive industry, and the connection between some parts is realized by welding, and the customer has put forward a clear drawing force requirement for the welding effect, so it is necessary to use it in the actual production process. Perform a pull-out force test. Existing detection devices are generally general-purpose, although the clamping device is suitable for various conventional components, but also because it is general-purpose, when clamping closed tubular welded components, there may be a possibility of unstable clamping. [0003] The invention provides a tubular welded combination tensile clamp to realize the clamping when testing the welding strength of the tubular welded assembly. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04
CPCG01N3/04
Inventor 王国增张永杰王春富
Owner TIANJIN JINRONG TIANYU PRECISION MACHINERY CO LTD
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