Non-contact limit switch machine tool spindle orientation parking device and parking method

Abstract

The invention relates to a contactless travel switch machine tool spindle directional parking device and a parking method of the contactless travel switch machine tool spindle directional parking device. The contactless travel switch machine tool spindle directional parking device comprises a parking trigger assembly and a control circuit. The parking trigger assembly comprises a disc synchronously connected with a machine tool spindle and a sector board fixed to one side of a machine tool spindle box. The face of the disc is provided with two armature pieces which are not located on the same circle. The board face of the sector board is provided with two contactless travel switches sensing the armature pieces when the disc rotates. The parking method includes the steps that when forward rotation of a spindle motor is stopped, one contactless travel switch triggers the corresponding armature piece, and the control circuit controls the spindle motor to rotate reversely at a low speed; in the reverse rotation process of the spindle motor, the other contactless travel switch triggers the corresponding armature piece, the control circuit controls the spindle motor to conduct dynamic braking operation, and the braking function is achieved. The device is simple in structure and control mode, the problem that directional parking of an existing machine tool spindle is inconvenient is effectively solved, and the device is suitable for various machine tool spindles.

Description

technical field [0001] The invention relates to a machine tool, in particular to a non-contact stroke switch machine tool spindle orientation parking device and a parking method thereof. Background technique [0002] The machine tool spindle is the axis used to drive the workpiece or tool to rotate on the machine tool. When using a machine tool, it is usually required that the machine tool spindle can stop quickly after the machining process is completed, especially in mass production, it is also required that the starting position and the stopping position are as uniform as possible. However, the existing machine tool spindles often rely on hydraulic, pneumatic or braking technologies when they stop. Although these technologies can realize the rapid stop of the spindle, they do not strictly consider the inertial rotation of the spindle when braking, so there are still machine tool spindles. It is difficult to unify the tool position and stop position. For this reason, suc...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide a non-contact travel switch machine tool spindle directional parking device and its parking method in the field, so that it can solve the problem of poor reliability and error when the existing similar devices brake the spindle. It is relatively large, and it is difficult to unify the starting and stopping positions of the spindle.

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