Vertical machining center main shaft box structure

Abstract

The invention discloses a vertical machining center main shaft box structure which comprises a main shaft box body, wherein a main shaft unit and a main motor are arranged on the main shaft box body; the main shaft unit comprises a main shaft belt wheel; the main motor is connected with a main motor synchronous belt wheel; the main shaft belt wheel and the main motor synchronous belt wheel are in transmission connection by a first synchronous belt; the transmission ratio of the main shaft belt wheel and the main motor synchronous belt wheel is more than 1:1; an encoder base is fixedly arranged in the main shaft box body; a transmission shaft is relatively and rotationally arranged on the encoder base; one end of the transmission shaft is in transmission connection with an encoder belt wheel, while the other end of the transmission shaft is connected with an encoder shaft joint; the encoder shaft joint is connected with an encoder; the encoder is fixedly arranged on the encoder base; a belt wheel is arranged on the main shaft unit; the belt wheel and the encoder belt wheel are in transmission connection through a second synchronous belt; the transmission ratio of the belt wheel and the encoder belt wheel is 1:1; the main shaft unit is connected with a boosting cylinder through a boosting cylinder base; the main motor is arranged on the main shaft box body through a main motor seat plate; and one side of the main motor seat plate is connected with an adjusting block.

Description

technical field [0001] The invention relates to a spindle box, in particular to a spindle box structure of a vertical machining center. Background technique [0002] The structure of the existing spindle box of the vertical machining center is as follows: a spindle unit is arranged in the spindle box, a pressurized cylinder is arranged on the upper part of the spindle unit, and a tool is placed on the lower part of the spindle unit; the main motor synchronous pulley is installed on the spindle motor, and the main motor The pulley is connected with the main shaft unit through a timing belt. Generally, the transmission ratio of the main shaft pulley on the main shaft unit and the synchronous pulley of the main motor is 1:1. Since the main shaft unit rotates at a high speed (generally 6000-10000r / min), the tool speed is also relatively high, which is suitable for high speed processing. However, for some products, low-speed heavy cutting is required. The current headstock stru...

AI Technical Summary

Problems solved by technology

However, for some products, low-speed heavy cutting is required. The current headstock structure ignores the low-speed cutting performance of the product and is not suitable for low-speed heavy cutting.

Images