Numerical control machine tool spindle box system with embedded braking mechanism

A braking mechanism and technology of numerically controlled machine tools, which are applied in the directions of driving devices, manufacturing tools, metal processing machinery parts, etc., can solve the problems of fast wear of friction plates, reduced machining accuracy of machine tools, and short service life, etc., and achieve slow friction and wear, The effect of short braking time and long service life
CN107570733APending Publication Date: 2018-01-12重庆市普创长顺机械有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
重庆市普创长顺机械有限公司
Publication Date
2018-01-12

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Abstract

The invention discloses a numerical control machine tool spindle box system with an embedded braking mechanism. The numerical control machine tool spindle box system comprises a box body and a spindleand further comprises a spindle brake, a bearing sealing system, a bearing pre-tightening clearance eliminating device and a bearing lubricating system. According to the spindle box system, during active braking, braking resistance is provided mainly through a braking protrusion embedded in a radial groove, the friction abrasion speed of an embedding ring in the braking process is small, and theservice life is long. The bearing sealing system of the spindle box system can have a dust and dirt preventing protection function on a bearing and can also have a temperature reducing and cooling function on the inner ring of the bearing and the spindle, the rigidity of the spindle and the inner ring of the bearing can be improved, and the spindle rotation precision is kept. The bearing pre-tightening clearance eliminating device can automatically eliminate clearances generated due to bearing abrasion, the rigidity of a first deep groove ball bearing and a second deep groove ball bearing is greatly improved, the rigidity of the spindle system can be greatly improved, and the spindle rotation precision and the machine tool machining precision are improved.
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Description

technical field

[0001] The invention relates to the technical field of machine tools, in particular to a spindle box of a numerically controlled machine tool. Background technique

[0002] The spindle box is an important part of the machine tool, which includes a box body, a spindle component, and the like. Main shaft components are usually composed of main shaft, bearings and transmission parts (gears or pulleys). In the machine tool, the main shaft is mainly used to support transmission parts such as gears and pulleys, to transmit motion and torque, to drive the workpiece or tool to rotate, etc. It is used as a CNC machine tool for high-precision machining, and the quality requirements for the main shaft components are very high.

[0003] During the processing of the machine tool, the radial force of the spindle is large, but the axial force is relatively small, so the radial bearing supporting the spindle is very critical. In the prior art, deep groove ball bearings are...

Claims

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