Machining device of thin and long in-hole groove

Abstract

The invention provides a machining device of a thin and long in-hole groove, which is characterized by comprising a fixing frame (10), a positioning block (4), an outer sleeve (7), an inner sleeve (6) and an ejection rod (5), wherein the positioning block (4) is inserted into a workpiece hole; one end of the outer sleeve (7) is connected with the fixing frame (10) and the other end of the outer sleeve (7) is connected with the positioning block (4); the inner sleeve (6) is sleeved inside the outer sleeve (7); one end of the inner sleeve (6) stretches out of the outer sleeve (7) and is provided with a groove cutter bar (2); the groove cutter bar (2) is provided with a groove cutter (1); the ejection rod (5) is sleeved into the inner sleeve (6); one end of the ejection rod (5) is inserted into the groove cutter bar (2) and is provided with an inclined plane and the other end of the ejection rod (5) is connected with a pressing head (8); and the inner sleeve (6) is further provided with a resetting spring (3). The machining device of the thin and long in-hole groove has the advantages of good rigidity, high machining precision and high automation degree, can realize self-centering and controllable angle, can save a lot of manual adjusting time, is suitable for batch machining, is good for reducing the machining cost, and improves the economic benefits.

Description

technical field [0001] The invention relates to a mechanical processing device, in particular to a processing device for grooves in holes, in particular to a processing device for grooves in elongated holes. Background technique [0002] At present, the traditional processing method of the annular groove in the hole in the prior art is to use a boring bar with a feedable tool for processing when using an ordinary boring machine. Rotate together, so it is necessary to stop and adjust when feeding the tool, and when it is used as a cantilever type to process slender holes, the tool row is slender and deformed after being stressed, so that the processing efficiency is low each time, and the accuracy (perpendicularity to the hole) is poor. When the CNC boring machine is used, the groove-type forming cutter is used for round milling. When processing the elongated hole, the cutter row will be slender and deformed after being stressed, which will affect its processing efficiency. ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low processing efficiency and low precision of existing slender inner hole grooves, and to design a slender hole that is not affected by the length of the slender hole, has reliable precision, high automation and processing efficiency, and has a relatively low economic cost. Low, suitable for mass production of elongated hole inner groove processing device

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