Spring positioning pin device applied to automatic welding line

Abstract

The invention discloses a spring positioning pin device applied to an automatic welding line. The spring positioning pin device is used for positioning a sheet metal, and the structure is as follows,an adjusting bolt of the spring positioning pin device is installed at the tail part of a sleeve through threads in a screw rod inwards mode; the head of a clamp positioning pin is exposed out of thetop end of the sleeve and is matched in the positioning hole of the sheet metal in the initial state, the tail part is provided with a stage, the clamp positioning pin can retract into the inner cavity of the sleeve and is separated from the positioning hole; one end of the spring is connected to the end of the screw rod, and the other end of the spring is always pressed against the bottom end surface of the stage of the clamp positioning pin; the guide sleeve is arranged between the sleeve and the clamp positioning pin, guide is provided for the axial movement of the clamp positioning pin, and the axial limit of the clamp positioning pin is achieved through the bottom end surface; and a blind hole which is axially arranged is formed in the center of the head of the clamp positioning pin,and the front end of the tail end guide part of a gripper positioning pin can be inserted into the blind hole. According to the spring positioning pin device, the cost is reduced and the positioning precision is improved on the premise that the positioning hole is shared by a gripper and a clamp.

Description

technical field [0001] The invention relates to the technical field of a body-in-white welding production line, and more specifically relates to a spring positioning pin device applied in an automatic welding line. Background technique [0002] With the development of robot industrialization, a large number of robot tools, especially grippers, have been used in the field of automatic line welding of body-in-white. Manipulators are more and more widely used in the welding line of automobile OEMs. It has become a normal phenomenon for a welding workshop to have hundreds of manipulators. The application of grippers has greatly improved the production cycle and reduced the chance of line stoppage. [0003] In order to ensure the accuracy of the body, positioning pins are used for positioning during operation, and it is best to ensure that the positioning is continuous throughout the production. However, some sheet parts cannot design many high-precision positioning holes due to...

AI Technical Summary

Problems solved by technology

In this way, the use of cylinders (a set of two cylinders, one gripper, and one fixture) and control system increases the cost; at the same time, the sheet parts may slide after the cancellation, resulting in positioning deviation

Images