Spindle cooling double-circulation device of multi-wire sawing machine

Abstract

The invention relates to a spindle cooling double-circulation device of a multi-wire sawing machine. The spindle cooling double-circulation device of the multi-wire sawing machine comprises a spindleassembly, a connecting shaft, a drive motor and a rotary joint assembly, wherein the rotary joint assembly comprises a rotary joint and a joint pipe; the rotary joint is fixed onto the drive motor; the joint pipe is arranged on the rotary joint and penetrates through the drive motor and the connecting shaft so as to be connected with the spindle assembly; the spindle assembly comprises a bearing seat, a front end pressing cover, a main shaft, a bearing I, a bearing II, a joint I, a back end pressing cover, an end cover, a small sleeve, a center big sleeve and a joint II; the spindle is the hollow shaft; the center big sleeve is arranged in the spindle; a cooling water outlet is formed in the center big sleeve; the end cover is screwed into the spindle so as to fix the center big sleeve; the bearing I is arranged on an outer ring of the spindle; and the spindle assembled with the bearing I is loaded into the bearing seat and is fixed by the front end pressing cover. According to the device, during ultra-high-speed slicing, the high-temperature energy produced by high-speed rotation of the bearing can be ensured to be timely discharged through a cooling circulation system, so that the stability in cutting is ensured, and the service life of the spindle system is ensured.

Description

technical field [0001] The invention relates to a main shaft cooling double circulation device of a multi-wire cutting machine. Background technique [0002] Multi-wire cutting machine is a kind of machine tool equipment that realizes cutting through high-speed reciprocating motion of diamond wire. Its spindle is the most critical component. With the upgrading of multi-wire cutting machine, higher speed and higher efficiency have become a new generation of products. Therefore, the internal bearing speed of the spindle system is greatly increased. The original spindle system only needs to cool the bearing seat to achieve the cooling effect of the spindle. After the speed is increased, the temperature drop is not obvious, and the control temperature is unstable, which leads to bearings and bearing seats. The temperature rises and deforms, which leads to failures such as stagnation and locking, which affect the service life of the spindle system. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] Multi-wire cutting machine is a kind of machine tool equipment that realizes cutting through high-speed reciprocating motion of diamond wire. Its spindle is the most critical component. With the upgrading of multi-wire cutting machine, higher speed and higher efficiency have become a new generation of products. Therefore, the internal bearing speed of the spindle system is greatly increased. The original spindle system only needs to cool the bearing seat to achieve the cooling effect of the spindle. After the speed is increased, the temperature drop is not obvious, and the control temperature is unstable, which leads to bearings and bearing seats. Deformation due to temperature rise, resulting in failures such as stagnation and locking, which will affect the service life of the spindle system

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