Unlock instant, AI-driven research and patent intelligence for your innovation.

Moveable pin device and method using the same to weld vehicle body

A technology of movable pins and car bodies, which is applied in the field of car body welding, can solve the problems of increasing mold process content, increasing mold manufacturing costs, pins and holes can not match, etc., to achieve the effect of convenient welding, reducing difficulty and ensuring accuracy

Active Publication Date: 2012-10-03
CHERY AUTOMOBILE CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 2 As shown, the fixed pin is used for welding positioning. If the hole diameter of the body is slightly deformed, it may cause the pin and the hole to not match, especially in mass production, which will also affect production efficiency; moreover, this type of fixed pin requires the position of the hole on the body Therefore, in the design process, the punching holes on the car body are required to have very accurate position and precision, which increases the difficulty of design, and even increases the process content of the mold, thereby increasing the manufacturing cost of the mold

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
  • Moveable pin device and method using the same to weld vehicle body
  • Moveable pin device and method using the same to weld vehicle body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Such as figure 1 As shown, the lower part of the movable pin 2 is provided with a shoulder, which is located in the movable pin base 3, and there is a movable gap between the outside of the shoulder and the inner wall of the movable pin base, and the movable pin shoulder can be placed on the movable pin base. Rotate freely. The size range of the movable gap between the outer side of the movable pin shoulder and the inner wall of the movable pin base is 0.5mm-1.5mm. In this embodiment, the movable gap size is 0.8mm. The bottom of movable pin base 3 is connected with movable pin fixed plate seat 1.

[0014] Use the free rotation of the movable pin shoulder in the movable pin base to automatically align the movable pin to the hole position of the vehicle body. The end of the movable pin passes through the hole on the vehicle body for welding positioning, and the nut to be welded is placed in the movable On the pin, weld the nut.

[0015] In another preferred embodiment...

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 relates to a moveable pin device and a method using the same to weld a vehicle body in order to achieve the rapid processes of welding and locating and facilitate the welding process. The technical scheme of the invention is as follows: a shoulder is arranged at the lower part of the moveable pin and located inside the base of the moveable pin; a moveable clearance is left between the outer side of the shoulder and the inner wall of the base of the moveable pin; and for the shoulder of the moveable pin is capable of freely rotating in the base of the moveable pin, the end part of the moveable pin can enter a hole on the vehicle body for welding and locating, particularly, a nut can be welded by placing the nut to be welded on the moveable pin.

Description

technical field [0001] The invention relates to a method for welding a vehicle body using a movable pin device. Background technique [0002] In the automobile welding process, the position and accuracy of the holes are very high, but some parts cannot guarantee the position and accuracy of the holes due to the stamping process, which has a certain degree of influence on the welding quality of the car body. [0003] In the prior art, such as the technical solution disclosed in the patent (Patent No.: 200620092880) entitled "Positioning Device in Body-in-white Welding Tooling", the welding positioning adopts fixed pins. Such as figure 2 As shown, the fixed pin is used for welding positioning. If the hole diameter of the body is slightly deformed, it may cause the pin and the hole to not match, especially in mass production, which will also affect production efficiency; moreover, this type of fixed pin requires the position of the hole on the body Therefore, in the design pr...

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): B23K37/00B23K37/04
Inventor 居万龙曹江怀时丕见高军
Owner CHERY AUTOMOBILE CO LTD