Knife handle and welding method of the knife handle and cutter body

Abstract

The invention relates to a welding process for cutter handles, in particular to a cutter handle and a welding method for the cutter handle and a cutter body. The head end of a cutter handle body is in a gradual contraction tapered portion, and a handle plug is encapsulated at the tail end of the cutter handle body; the tapered portion is provided with an outer convex area, an inner concave area and a straight stretching area in sequence along the axis of the cutter handle, and the outer convex area, the inner concave area and the straight stretching area are connected smoothly; a positioning groove concaved along the axis of the cutter handle is formed in the center of the handle plug. The welding method includes the steps that the cutter body is inserted into the cutter groove of the cutter handle, thermal treatment, welding and tempering heat preservation are conducted in sequence, and weld joint grinding and cutter handle surface antiskid treatment are carried out. The cutter handle solves the technical problem that the structure of a traditional cutter handle affects welding quality and welding efficiency; the technical problem that deformation is prone to occurring in a traditional welding method is solved through the provided welding method.

Description

technical field [0001] The invention relates to the field of welding of knife handles, in particular to a knife handle and a welding method of the knife handle and a knife body. Background technique [0002] Most of the head ends of the current knife handles have a tapered portion, and the tapered portion is provided with a gap for inserting and welding the knife body. [0003] Limited by the above-mentioned structure of the handle, the welding quality and efficiency of the handle are low, specifically: the edge of the tapered part is not neat, and the cutter body needs to be closed or flared before welding; the cutter body After insertion, it contacts with the notch point or line, the welding fit is poor, and it is easy to weld through; the starting point of welding cannot be accurately positioned, and the weld seam is irregular, so it is difficult to realize the subsequent grinding automation, and the irregular weld seam is only It can be ground by manual operation, and t...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a knife handle to solve the technical problem that the structure of the traditional knife handle affects the welding quality and efficiency

[0007] The object of the present invention is also to provide a welding method for a knife handle and a knife body, so as to solve the technical problem that the traditional welding method is prone to deformation

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