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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

Pending Publication Date: 2018-01-12
重庆市普创长顺机械有限公司
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AI Technical Summary

Problems solved by technology

[0009] In view of this, the purpose of the present invention is to provide a CNC machine tool headstock system with an embedded brake mechanism to solve the technical problems of reduced machining accuracy of the machine tool due to bearing clearance, bearing wear, bearing and spindle temperature rise; The technical problems of fast wear and short service life of the brake friction plate

Method used

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  • Numerical control machine tool spindle box system with embedded braking mechanism
  • Numerical control machine tool spindle box system with embedded braking mechanism
  • Numerical control machine tool spindle box system with embedded braking mechanism

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030]As shown in the figure, the CNC machine tool spindle box system with embedded braking mechanism in this embodiment includes a box body 1 and a main shaft 2; a bearing seat 3 is formed on the inner side of the box body, and the front end of the main shaft passes through two One deep groove ball bearing is installed on the bearing housing inside the box, the first deep groove ball bearing 4 of the two deep groove ball bearings is close to the middle of the box, and the second deep groove ball bearing 5 is close to the outside of the box; The rear end of said main shaft is installed on the casing by angular contact bearing 6.

[0031] The headstock system of this embodiment also includes a main shaft brake, the main shaft brake includes a brake ring 40 fixed on the main shaft by screws, and the brake ring is close to the angular contact bearing. The...

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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.

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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Application Information

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IPC IPC(8): B23B19/02B23Q5/20B23Q5/56B23Q11/12B23Q11/00
Inventor 李长顺
Owner 重庆市普创长顺机械有限公司
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