Method for assembling small part with nut on coating rack

Abstract

The invention discloses a method for assembling a small part with a nut on a coating rack. In order to achieving coating of the small part with the nut, the special coating rack is adopted, the coating rack structurally comprises a hanging arm, the upper end of the hanging arm is the conveying chain connecting end, multi-layer hangers are sequentially welded and fixed to the hanging arm from top to bottom, a plurality of hanging rod installing parts are symmetrically on the two sides of the hanger in the width direction, and a hanging rod installing part is in hooked connection with a detachable hanging rod, and an external thread arranged on the detachable hanging rod forms a hooking part of the small part with the nut; by adopting the coating rack, the method for rapidly installing the small part with the nut to the detachable hanging rod comprises the steps that assembling is performed by adopting a special assembling device, in the process that the part is arranged on the hanging rod through the assembling implementing device, whether wedding of the nut of the part is qualified or not can be inspected, and the part can complete wire passing of the part nut obtained after electrophoresis in the original procedures when the part is taken down from the hanging rod. The structure is simple, the manufacturing cost is low, use is convenient, time and labor are saved, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to a method for assembling parts on a hanger, in particular to a method for assembling small parts with nuts on a paint hanger. Background technique [0002] Parts with nuts are often painted in electrophoretic coating. The traditional method is to use ordinary hangers to hang the parts on top. After cathodic electrophoresis, the parts with nuts will have electrophoretic paint in the threaded holes, which will affect the passability of assembly. Tapping must be carried out after cathodic electrophoresis. This method has the following problems: first, the traditional method has a small number of hangers, generally less than 100 pieces for each hanger, and the production efficiency is low; second, it is impossible to check the welding quality of nuts when hanging ; The third is the parts after cathodic electrophoresis, because electrophoretic paint, paint residue, etc. are not allowed in the nut thread, so the nuts of the parts must...

AI Technical Summary

Problems solved by technology

[0002] Parts with nuts are often painted in electrophoretic coating. The traditional method is to use ordinary hangers to hang the parts on top. After cathodic electrophoresis, the parts with nuts will have electrophoretic paint in the threaded holes, which will affect the passability of assembly. Tapping must be carried out after cathodic electrophoresis. This method has the following problems: first, the traditional method has a small number of hangers, generally less than 100 pieces for each hanger, and the production efficiency is low; second, it is impossible to check the welding quality of nuts when hanging ; The third is the parts after cathodic electrophoresis, because electrophoretic paint, paint residue, etc. are not allowed in the nut thread, so the nuts of the parts must be tapped; the fourth is that the hanger after cathodic electrophoresis must be polished, otherwise the conductivity is poor, and it is easy to cause parts to be exposed.

[0003] And in these operations, it is necessary to use manual loading and unloading, and each part needs to be tapped in the later stage, resulting in slow speed and low production efficiency; at the same time, in the operation, whether the welding of the nuts on the parts is qualified needs to be checked. inspection, but the traditional method is often prone to missed detection and so on

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