A positioning tool for shielding ring and insert welding

Abstract

The invention relates to a positioning tool for welding shielding rings and inserts. The positioning tool for welding shielding rings and inserts includes a support seat with a central axis and an insert positioning seat. The positioning tool has a set reference plane perpendicular to the central axis. , the support seat is provided with a positioning groove for placing the shielding ring, the positioning groove has a positioning groove wall and a notch, the cross-sectional center circle of the shielding ring at the set position is perpendicular to the central axis, and the center of the cross-sectional central circle is located on the central axis , and there is a set distance between the center circle of the section and the datum plane; there are more than two pressure plate assemblies evenly distributed in the circumferential direction around the central axis on the support seat, and the pressure plate assembly includes a pressure plate, a compression mechanism, and a stopper. The pressing contact position between the shielding ring and the pressing plate is a fulcrum, and the pressing mechanism and the stop positioning piece respectively apply reverse torque to the pressing plate. The positioning accuracy and positioning reliability between the shielding ring and the insert are guaranteed.

Description

technical field [0001] The invention relates to a positioning tool for welding a shielding ring and an insert. Background technique [0002] The Chinese invention patent application document with the application publication number CN108320869A discloses a DC pot insulator. The pot insulator includes a shielding ring and an insert (that is, an insert) arranged outside the shielding ring. The shielding ring is arranged on the epoxy In the aluminum oxide composite part, it is connected with the outer flange through the insert. The axial section of the shielding ring is circular, the radial section is circular, and the center line of each circular surface of the axial section of the circular ring forms a section center circle, and the center of the section center circle is located at On the axis of the shielding ring; there are multiple inserts, arranged at intervals around the axial direction of the shielding ring, and the inserts are cylindrical, the axis of the inserts is ar...

AI Technical Summary

Problems solved by technology

[0004] However, when the above-mentioned welding tool is applied to the welding positioning process of the shielding ring and the insert, since the cross section of the shielding ring is circular, in the process of positioning the shielding ring, the positioning between the positioning groove and the shielding ring is Line contact positioning, which will cause the shielding ring to be deflected in the circumferential direction during the positioning process, and the positioning will be inaccurate, which will lead to the inability of the axis of the insert to be accurately aligned with the center circle of the shielding ring section, resulting in the welding process in the later stage. The welding positioning accuracy of each insert is inconsistent, the finished product rate of welding and forming products is low, and the production efficiency is reduced

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