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Fixture pre-clamping device

A pre-clamping and fixture technology, used in workpiece clamping devices, manufacturing tools, etc., can solve the problems of scratching the positioning pin holes of the workpiece, affecting the machining accuracy of the workpiece, and difficulty in clamping the workpiece, avoiding rollover, universal Strong, simple and reliable results

Active Publication Date: 2016-08-24
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this way, it will make it difficult to clamp the workpiece. At the same time, the workpiece will also be over-positioned, which will easily scratch the positioning pin hole of the workpiece and affect the machining accuracy of the workpiece.

Method used

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  • Fixture pre-clamping device
  • Fixture pre-clamping device
  • Fixture pre-clamping device

Examples

Experimental program
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Embodiment Construction

[0042] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0043] Such as figure 2 As shown, a clamp pre-clamping device 1 includes a base 101, a pressing plate 103, a guide assembly and a push rod assembly. The pressing plate 103 is slidably installed on the top surface of the base 101 , the guide assembly is arranged on the base 101 for guiding the sliding of the pressing plate 103 , and the ejector assembly is arranged in the base 101 for limiting the pressing plate 103 .

[0044] An example such as figure 2 with image 3 As shown, the guide assembly includes a U-shaped frame 109, such as Figure 10 As shown, the bottom plate of the U-shaped frame 109 is provided with a sixth mounting hole 1092, as Figure 5 As shown, the top surface of the base 101 is provided with a seventh installation hole 1014, and the bolt passes through the sixth installation hole 1092 and is screwed to the seventh insta...

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Abstract

The invention discloses a pre-clamping device for a clamp. According to the pre-clamping device for the clamp, when a workpiece is pre-tightened by means of a pressing plate, the workpiece is pre-clamped, an ejector rod mechanism makes contact with the pressing plate all the time, the phenomenon that the pressing plate is suspended is effectively avoided, and thus the workpiece can be pre-clamped more reliably. The pre-clamping device for the clamp is simple, reliable and high in universality, and the workpiece can be effectively prevented from turning on one side after being installed and positioned.

Description

technical field [0001] The invention belongs to the field of clamp accessories, in particular to a clamp pre-clamping device. Background technique [0002] Such as figure 1 As shown, the engine cylinder head is often placed on its side on the fixture during the production process. After the workpiece is positioned, it is prone to rollover, which brings a lot of inconvenience to the actual production. [0003] In order to prevent the workpiece from turning over after it is installed and positioned, the prior art scheme makes the positioning pin between the fixture and the workpiece longer and the fit clearance smaller. However, in this way, the clamping of the workpiece will be difficult, and the phenomenon of over-positioning of the workpiece will also occur at the same time, which will easily scratch the positioning pin hole of the workpiece and affect the machining accuracy of the workpiece. Therefore it is particularly important to design a pre-clamping device. Conten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B11/00
CPCB25B11/00
Inventor 谢飞饶旭东张青锋赵贺金张明
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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