Reciprocating follow-up control linear motor driving device for main shaft of honing machine

Abstract

The invention relates to a honing machine tool, in particular to a reciprocating follow-up control linear motor driving device for a main shaft of a honing machine. The driving device comprises a machine tool body, a honing machine main shaft system arranged on the machine tool body, a hydraulic reversing driving system and a control system, and is characterized in that: the hydraulic reversing driving system of the honing machine comprises a main shaft hydraulic cylinder and a mechanical hydraulic servo valve for controlling the main shaft hydraulic cylinder to do reciprocating motion; a valve body in the mechanical hydraulic servo valve is connected with a movable piece in the main shaft hydraulic cylinder; a valve core in the mechanical hydraulic servo valve is connected with a switching mechanism through a connecting piece; the switching mechanism consists of a linear motor arranged on the machine tool body; one end of the connecting piece is connected with the valve core in the mechanical hydraulic servo valve, and the other end of the connecting piece is connected with a linear movable piece in the linear motor; and the linear motor is used for controlling the switching mechanism through the control system. The reciprocating follow-up control device for the main shaft of the honing machine has a simple structure and low prices, is reliably controlled and is convenient toadjust, operate and maintain.

Description

technical field [0001] The present invention relates to a honing machine tool, in particular to a linear motor drive device for reciprocating follow-up control of a main shaft of a honing machine. Background technique [0002] The main shaft of the honing machine tool needs to do reciprocating motion during the honing process. The reciprocating digital control technology of the main shaft of the honing machine tool is the core manufacturing technology of the honing machine tool, which determines the performance of the honing machine tool and the level of honing technology. [0003] At present, the reciprocating motion of the spindle of the high-end honing machine tool has been numerically controlled. There are two control and driving methods for the reversing control system of the hydraulic cylinder of the reciprocating spindle. The position reversing closed-loop control drive system realizes the numerical control of the spindle reversing; the second is to use a special spec...

AI Technical Summary

Problems solved by technology

[0004] Among the above two main shaft reciprocating and reversing control systems, the electro-hydraulic position and reversing closed-loop control system composed of the electro-hydraulic servo proportional valve and the main shaft displacement sensor, the electro-hydraulic servo proportional valve is expensive and the use conditions are relatively harsh; and the special honing The reciprocating reversing control system of the special rotary valve needs to convert the linear motion of the main shaft into rotary motion and the complex closed-loop system of the rotary machine fluid position, which greatly increases the production cost of the reversing control system, and also makes the debugging and maintenance of the system Maintenance is very cumbersome

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