Internal tooth milling and internal tooth rolling conversion knife rest device

Abstract

The invention discloses an internal tooth milling and internal tooth rolling conversion knife rest device. A knife rest body is a main frame of the device; an internal tooth rolling knife is positioned in the knife rest body through a mandrel and capable of performing a revolving motion; two sides of the internal tooth rolling knife are connected with transmission gears at two ends by using a left knife pad and a right knife pad to realize the torque transfer; a gap between the right knife pad and the internal tooth rolling knife is eliminated through pretightening of a tightening nut at the right end, so that the stability of the revolving motion of the internal tooth rolling knife is guaranteed; and when the internal tooth rolling knife is converted to an internal tooth milling knife for use, the left knife pad, the right knife pad, the mandrel and the internal tooth rolling knife are disassembled to take down, the internal tooth milling knife is mounted in a knife groove, the mandrel is mounted in a positioning hole of the internal tooth milling knife, and precise conversion of the internal tooth milling knife and the internal tooth rolling knife is finished through automatic shrinkage of the tightening nut. The device realizes the compound cutting of milling and rolling for internal teeth by using one knife rest, overcomes single problem that a common knife rest only can apply one facing cutter to machine, can realize precise conversion of the internal tooth milling knife and the internal tooth rolling knife, and can thoroughly solve the problems of overproof workpiece precision and low machining efficiency.

Description

technical field [0001] The invention relates to a switching tool holder device for internal tooth milling and internal tooth hobbing, which belongs to the technical field of mechanical processing. Background technique [0002] With the update of science and technology, CNC machine tool products are developing towards high speed, high precision, high compounding, high reliability and high automation. Users have more and more requirements for high precision CNC gear hobbing machine processing efficiency and processing accuracy, such as internal gear ring gear Since this component is a typical rotary transmission component on power generation equipment, there is a great demand in the industry, and there are certain technical difficulties in processing. In the past, such components were processed by the row method with a single-piece milling cutter mounted on a common internal-tooth milling cutter. Due to the high machining accuracy required by the parts and the large market dem...

AI Technical Summary

Problems solved by technology

[0005] The beneficial effects of the present invention are: the present invention realizes the combined milling and hobbing cutting of internal teeth by using a tool holder, overcomes the single problem that ordinary tool holders can only be processed by a single-piece milling cutter disc, and can realize internal tooth milling. The precise switch between the cutter and the internal gear hob can completely solve the problems of workpiece precision tolerance and low processing efficiency

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