High-precision instrument welding clamping mechanism

Abstract

The invention provides a high-precision instrument welding clamping mechanism, and relates to the technical field of high-precision instrument manufacturing. A clamping driving piece is fixedly connected to the upper portion of the welding tool main frame body, and a centering driving piece is fixedly connected to the lower portion of the welding tool main frame body. The tool has the function of measuring and limiting a workpiece at a butt joint position, the direction and the position of the tool and the butt joint position can be accurately determined through the centering mechanism, the axis position of the workpiece of a cylindrical structure is determined, the position and the direction of a splicing piece are fixed, the coaxiality of two connecting pieces is accurate, the assembly process is further improved, and the assembly efficiency is improved. The invention relates to a positioning tool for butt joint of cylindrical parts, which solves the problems that the position relation between two parts needs to be adjusted and kept for the assembly of the parts of the traditional tubular structure at present, and the coaxiality deviation of the two sections of workpieces after welding and assembly is larger, the instrument precision is reduced and the welding strength is influenced due to inaccurate centering when the existing positioning tool for butt joint of the cylindrical parts is used.

Description

technical field [0001] The invention relates to the technical field of high-precision instrument manufacturing, in particular to a high-precision instrument welding clamping mechanism. Background technique [0002] In the assembly and manufacturing process of high-precision instruments, in order to make the instrument have high precision, it is necessary to ensure high assembly accuracy during the assembly process of the instrument. The connections between them include welding, gluing, bolting, etc. While it is necessary to ensure the strength between the assembled parts, it is also necessary to ensure the precise positional relationship of the assembled components, such as parallelism, perpendicularity, coaxiality, etc. , the positional relationship of the assembled parts may have a great impact on the accuracy of the instrument. [0003] For example, a patent with publication number CN212095105U discloses a high-precision instrument welding clamping mechanism, including a...

AI Technical Summary

Problems solved by technology

[0004] However, as far as the parts assembly of the traditional tubular structure is concerned, when welding two tubular or columnar parts, it is necessary to adjust and maintain the positional relationship between the two parts during the docking process of the two parts. When the docking positioning tool is used, it is inconvenient to adjust the docking coaxiality between the two parts. Inaccurate alignment will cause a large deviation in the coaxiality of the two workpieces after welding and assembly, resulting in a decrease in the accuracy of the instrument and affecting welding strength

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