A mechanical device for simulating the working posture of the milling spindle unit

Abstract

A mechanical device for operation posture simulation of a milling spindle unit is structurally characterized in that the milling spindle unit for testing is fixed onto a large disk through a coupling flange, and the large disk is capable of rotating within a vertical plane. The large disk rotates along the own axis by the aid of intermediate transmission of a steel wire rope under the action of a ratchet mechanism, rotation angle control of the large disk depends on cooperation of a positioning pin and a positioning hole, and different rotation angles results in different operation postures of a spindle. In order to reduce resistance during rotation of the large disk, an unloading structure composed of a plurality of rollers, Belleville spring sets, adjusting pads and the like is designed. In order to control operation positions, relative to ratchet wheels, of two pawls in the ratchet mechanism, two operation structures are designed respectively to control the pawls. The mechanical device can be used for simulating operation postures of the spindle unit to facilitate performance test comparison of the spindle at different positions and can be used as an auxiliary tool in a spindle unit assembly process.

Description

technical field [0001] The invention creates and provides a mechanical device capable of simulating the working attitude of the milling spindle unit, which can be used as the experimental basis for the performance test of the spindle, and can also be used as a tooling aid in the assembly process of the spindle unit. Background technique [0002] Milling spindle units are usually used in horizontal machining centers, vertical machining centers, and angle heads on multi-axis machining centers; correspondingly, the working attitude of milling spindle units can be divided into horizontal - the axis of rotation is parallel to the ground, Vertical - the axis of rotation is perpendicular to the ground, and the angle is inclined - the axis of rotation and the ground are at any angle or at a fixed interval. The cutting performance of the milling spindle unit will determine the cutting performance of the main machine to a large extent, and the development of high-performance spindle u...

AI Technical Summary

Problems solved by technology

Of course, the different working postures of the spindle also put forward different requirements for the sealing structure of the spindle front bearing: the cutting fluid and other dirt at the front end of the vertical spindle are not easy to enter, and the dirt that enters is also easy to discharge under the action of gravity; The situation of the main shaft is the opposite. Dirt is easy to enter from the front sealing gap, and it is not easy to get rid of after entering.

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