Sleeve embedding groove type processing tool adopting clamp spring connecting structure

Abstract

The invention relates to a sleeve embedding groove type processing tool adopting a clamp spring connecting structure, which is fixed and clamped by a spanner drill chuck and used for drilling the hard alloy material with the thickness being 5-10mm. The processing tool comprises a drill bit, a top end sleeve piece, a rod body piece and a sleeve cylinder, wherein a top end sleeve piece is connected with the drill bit; the rod body piece is connected with the top end sleeve piece in interference fitting manner; the sleeve cylinder is sleeved at the outer part of the rod body piece, a clamp spring positioning piece arranged in an embedding groove manner is further connected between the top end sleeve piece and the rod body piece; and the spanner drill chuck is fixed and clamped on the outer wall of the sleeve. According to the sleeve embedding groove type processing tool, the structure is simple and the manufacturing cost is low; the shortcomings and limits in the prior art can be solved; the stability in the process of drilling is guaranteed; the processing quality and the processing efficiency are effectively improved; and furthermore, the application scale is wide.

Description

technical field [0001] The invention relates to a drilling tool for hard alloy materials with a thickness of 5-10 mm, in particular to a sleeve-embedded groove processing tool with a clamp spring connection structure, which belongs to the technical field of clamp bed processing molds . Background technique [0002] In the mold manufacturing of small and medium-sized motors, it is often necessary to prepare special tooling to match the manufacture of mold parts. Some special mold tooling needs to be drilled with cemented carbide materials, and then assembled into special tooling after completion. [0003] In the prior art, the special tooling used in mold manufacturing usually selects discarded milling inserts made of hard alloy materials, and generally performs shape forming and drilling. The wire cutting process is generally used for the shape processing of the mold. As for the drilling of the mold, if the twist drill is used directly, since the hardness of the twist dril...

AI Technical Summary

Problems solved by technology

Although it can effectively avoid the defect of insufficient strength caused by the threaded connection structure, the overall processing force strength is still not enough for the load-bearing process requirements, and the connection between the top sleeve and the shaft is only supported by spot welding, which is difficult to guarantee. Maintain a stable state throughout the machining process

Especially when the drilling speed of the spindle of the drilling machine is high, the parts in the processing assembly are prone to breakage when the winding degree increases, and are even thrown out of the drilling machine, causing potential safety hazards and serious injuries to operators

[0011] In addition, although the spot welding operation welds the top sleeve and the shaft piece, in actual operation, it is particularly inconvenient to disassemble. Once improper force is used, it will cause rubbing between the top sleeve and the shaft piece, resulting in the failure of each part. The size of the deformation is deformed, so that the parts are damaged and the assembly loss is formed.

[0012] Therefore, it is difficult for the above three processing toolings using traditional connection structures in the prior art to complete the drilling process for cemented carbide materials.

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