Conduit welding shrinkage control device

A technology for controlling device and shrinkage, applied in welding equipment, auxiliary devices, auxiliary welding equipment, etc., can solve the problems of difficult control of catheter accuracy, reduction of welding speed, disorder of lateral shrinkage, etc., to ensure welding accuracy and product quality, Easy and fast to use, operate the effect of editing
CN112122866BActive Publication Date: 2021-09-07CHENGDU AIRCRAFT INDUSTRY GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU AIRCRAFT INDUSTRY GROUP
Publication Date
2021-09-07

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Abstract

The invention discloses a catheter welding shrinkage control device, which belongs to the technical field of precision manufacturing of aviation welding catheters. It includes a digital control device and a pipe marking device. The digital control device includes a casing positioner, a pipe support and a digital measuring device. A connection plate is provided at one end of the casing positioner. The joints are coaxially connected, and the pipe support is used to support the casing positioner; the digital measuring device is rotatably connected to the casing positioner, and rotating the digital measuring device can drive the casing positioner to slide in the pipe support; The scriber is fixed on the connection plate, and is used to draw a circle of welding seam line at the junction of the conduit and the pipe joint. In the present invention, the digital control device and the pipe marking device are used in conjunction with each other, the welding shrinkage variable is obtained by the digital control device, and transmitted to the pipe marking device, and the position of the weld seam before welding is obtained by the pipe marking device, so that there is no gap Welding requires technical support.
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Description

technical field

[0001] The invention relates to a welding fixture, in particular to a control device for welding shrinkage of a conduit. Background technique

[0002] For precision welded conduits used in aviation, with the iterative upgrade of aircraft, the manufacturing accuracy of conduits is becoming more and more strict. According to the requirements of manufacturing standards, the end face accuracy is required to be controlled at ±0.16mm, and the accuracy requirements are relatively high. At the same time, due to its complex three-dimensional space size and small batch production quantity, the entire manufacturing process of the catheter needs to use the numerical control pipe bending process and welding process. Both of these two processes have long-term difficulties in controlling the amount of springback and welding shrinkage of the pipe. Due to the technical bottleneck, when the catheter is assembled and positioned on the welding fixture, because the amount of weld...

Claims

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