Machining method of deep hole groove

Abstract

The invention relates to a machining method for a deep hole groove. The method comprises the following steps of: before machining, clamping a tool bar sleeve of a combined tool in a tool holder and aligning an upper generatrix and a side generatrix of the tool bar sleeve, thereby enabling the center of the tool bar sleeve to coincide with the rotating center of a machine tool; firstly, fixing a to-be-machined part to a chuck, and supporting the other end of the to-be-machined part by a center frame; fixing the free end of a supporting rod of the combined tool to a lathe; and controlling the length of the tool extending out of the tool bar sleeve by rotating the handle to move a tool block adjusting shaft, wherein the conical surface moves along with axial movement of the tool block adjusting shaft, a telescopic tool can be driven to move in the radial direction, extension and contraction of the tool are adjusted, and machining of a large-diameter inner hole of a deep hole groove is achieved. The machining efficiency is high, the machining time is saved, and the phenomenon that a deep hole, a step deep hole and a deep hole groove part of the same diameter of a long-size part cannotbe machined due to the fact that the tool bar of the tool is particularly long and rigidity is insufficient in the turning machining process is avoided.

Description

technical field [0001] The invention belongs to the technical field of deep hole processing, and in particular relates to a processing method of deep hole grooves. Background technique [0002] At present, when turning stepped deep holes and turning deep holes with small diameters at both ends and large diameters in the middle, the small diameter inner hole is first turned, and then according to the precision and surface quality requirements of the large hole to be processed, A suitable inner hole turning tool is selected for secondary processing of deep hole grooves. However, the existing tool holders are too long and the rigidity is insufficient, resulting in the inability to process deep hole grooves with relatively large length and diameter. Contents of the invention [0003] The invention provides a processing method for deep hole grooves. The technical problem to be solved is to solve the problem of processing step-shaped deep holes and deep hole groove parts with sm...

AI Technical Summary

Problems solved by technology

[0002] At present, when turning stepped deep holes and turning deep holes with small diameters at both ends and large diameters in the middle, the small diameter inner hole is first turned, and then according to the precision and surface quality requirements of the large hole to be processed, Select a suitable inner hole turning tool for secondary processing of deep hole grooves. However, the existing tool holder is too long and the rigidity is insufficient, which cannot process deep hole grooves with a relatively large length and diameter.

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