High-speed high-precision motorized spindle for lathe, material clamping method and material loosening mechanism

A technology of clamping mechanism and electric spindle, applied in clamping, metal processing mechanical parts, supports, etc., can solve problems such as affecting processing quality and large vibration, improve production quality and processing efficiency, improve service life, and optimize the overall The effect of precision

Active Publication Date: 2021-02-09
WEIHAI BEST PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Current problems: The clamping device used makes the parts to be processed vibrate greatly when they rotate at high speed, which affects the processing quality

Method used

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  • High-speed high-precision motorized spindle for lathe, material clamping method and material loosening mechanism

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Experimental program
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Effect test

Embodiment Construction

[0058] The present invention will be further described below in conjunction with the examples.

[0059] Such as figure 1 A high-speed and high-precision electric spindle for a lathe is shown, including a spindle seat 10, a spindle core 1, a (motor) stator 20 and a (motor) rotor 30 associated with the spindle core 1, and a spindle sleeve Barrel 2, pull rod 9, collet 91, adapter 92, clamping mechanism and loosening mechanism.

[0060] The stator 20 is fixed on the inner wall of the main shaft sleeve 2 , and the rotor 30 is arranged outside the main shaft core 1 . The stator 20 and the rotor 30 are respectively installed in the middle positions of the main shaft sleeve 2 and the main shaft core 1 . The stator 20 and the rotor 30 are driven by an external driver, that is, the electro-spindle is driven to rotate through electromagnetic induction to provide rotational power for it.

[0061] With the help of the solution of this patent, the formed electric spindle device can choos...

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Abstract

The invention provides a high-speed high-precision motorized spindle for a lathe, a material clamping method and a material loosening mechanism. The high-speed high-precision motorized spindle comprises a spindle core and a clamping device arranged at the rear end of the spindle core. The clamping device comprises a pull rod, the material clamping mechanism arranged at the rear portion of the pullrod and the material loosening mechanism arranged at the rear end of the material clamping mechanism. According to the high-speed high-precision motorized spindle, materials are clamped through the spring type material clamping mechanism, so that unstable factors generated by a traditional clamping mechanism when a spindle core operates at a high speed are greatly reduced; through the arrangementof the floating type material loosening mechanism, the situation that the service life of a bearing is shortened since an air cylinder exerts thrust on a bearing part in the loosening process is avoided; the operating speed and stability of a spindle are improved in the mode that a built-in stator and rotor are connected with the spindle core to directly drive the spindle core to rotate, the spindle core is forcibly cooled in a forced circulation water cooling mode, high-speed, high-precision and high-stability operating of the spindle core is achieved, and therefore the production quality and the machining efficiency are greatly improved.

Description

technical field [0001] The invention relates to the field of high-speed precision machine tools, in particular to a high-speed and high-precision electric spindle applicable to lathes. Background technique [0002] Through decades of rapid development, domestic CNC machine tools have fully met the market demand in the economical and popular fields. However, mid-to-high-end CNC machine tools cannot meet the market demand at present, and basically all rely on imported equipment. At the same time, with the continuous development and progress of the manufacturing industry, there are more and more requirements for the subdivision of CNC machine tools. For example, the rapid development of the 5G industry and the optical field in recent years has put forward high-speed, high-precision, and high-speed spindle stability requirements for small CNC lathes, because many parts have special requirements for tool patterns in addition to geometric and dimensional accuracy. [0003] The h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B19/02B23Q3/12B23Q11/12
CPCB23Q1/70B23Q11/127B23Q3/12Y02P70/10
Inventor 李宝剑张新华蔡品水
Owner WEIHAI BEST PRECISION MACHINERY
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