Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Thin sheets pre-tighten positioning clamping device

A positioning clamping and thin plate technology, which is applied in automobile manufacturing and mechanical fields, can solve the problem that the thin plate sample cannot limit the rotation of the sample, and achieve the effect of simple structure, easy operation and accurate positioning

Inactive Publication Date: 2010-06-02
BEIJING UNIV OF TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are fixtures at home and abroad that drive the curved chuck to clamp other samples through bolts, but for thin plate samples, the rotation of the sample in the plane of the plate cannot be restricted (that is, positioned along the width direction and the loading direction), and there are still There is no special fixture for positioning and clamping of spot welded tensile shear specimens along the width direction or loading direction

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thin sheets pre-tighten positioning clamping device
  • Thin sheets pre-tighten positioning clamping device
  • Thin sheets pre-tighten positioning clamping device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Combine below Figure 1 ~ Figure 3 Examples of the present invention will be described in detail.

[0020] like figure 1 As shown, this embodiment mainly includes a base 1 , a clamping block 2 , an "L"-shaped positioning block 3 , a pre-tightening slider 4 , a fastening bolt 5 and a fastening nut 6 . Wherein, the upper surface of the base 1 is provided with a fixed chuck a integrated with the base 1, and a pre-tightening slider 4 is arranged on the right side of the fixed chuck a, and the pre-tightening screw 10 is arranged in a direction from right to left. The direction passes through the pre-tightening slider 4 and the fixed chuck a in turn and enables the pre-tightening slider 4 to slide left and right along the outer surface of the pre-tightening screw 10, and the pre-tightening screw 10 can pass through the nut 14 arranged at the left end of the pre-tightening screw 10 Make the left end surface of the pre-tightening slider 4 contact with the right end surface of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a sheet preload positioning and clamping device which pertains to the field of the machinery and automobile manufacture technology. The device consists substantially of a substrate (1), a clamping block (2), a positioning block (3), a preload slider (4), a fastening bolt (5), a fastening nut (6), a preload spring (9) and a preload screw (10). The positioning block (3) is a two-point positioning structure and arranged on the substrate (1). Under the force of the preload spring (9), the preload screw (10) drives the preload slider (4) to ensure a test piece to be positioned on the substrate (1). Under the force of the fastening nut (6), the fastening bolt (5) drives the clamping block (2) to clamp the test piece. The lower end of the substrate (1) is provided with a boss holding end, which can be clamped on the testing machine conveniently. No fixture needs to be dismounted throughout the test processes. The invention can ensure a spot welding test piece to maintain the same clamping position during a plurality of times of clamping and realize the clamping of the test piece.

Description

technical field [0001] The invention relates to a thin plate pre-tightening positioning and clamping device, which is used for positioning and clamping a spot welding fatigue sample in a unidirectional tension-shear fatigue loading test. It belongs to the technical field of machinery and automobile manufacturing. technical background [0002] Resistance spot welding has the advantages of low cost, high efficiency, and simple operation. It is very suitable for mass production and has been widely used in modern industry, especially in the automobile industry. As modern automobiles are increasingly developing towards high strength and high reliability, light weight, and fuel saving, thinner high-strength steel plates are increasingly used, and the stiffness of spot welded joints decreases due to thinner plates, making Its fatigue strength is weakened. Therefore, technicians should regard the fatigue performance of solder joints as an important parameter of automobile safety a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/04G01N3/00
Inventor 尚德广李承山王瑞杰孙国芹李学朋
Owner BEIJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com