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Precise digital control rotation platform based on direct driving of serial dual synchronous torque motor

A torque motor, precision numerical control technology, applied to synchronous motors with static armatures and rotating magnets, control of multiple AC motors, multiple motor speed adjustments, etc. Density and motor operating life, beneficial to heat dissipation, and the effect of improving rotational acceleration

Inactive Publication Date: 2007-09-12
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional rotary servo motor plus the worm gear structure of the turntable can no longer meet the double requirements of modern large-scale machine tools for the high torque and high precision of the turntable.

Method used

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  • Precise digital control rotation platform based on direct driving of serial dual synchronous torque motor
  • Precise digital control rotation platform based on direct driving of serial dual synchronous torque motor
  • Precise digital control rotation platform based on direct driving of serial dual synchronous torque motor

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Embodiment

[0036] Embodiment: As shown in Figure 1, the present invention includes a turntable base 8, a turntable working surface 1, a motor cooling structure, an outer rotor and an inner rotor permanent magnet synchronous ring torque motor, and the turntable base 8 is an annular structure with an inverted T-shaped cross section. The turntable base 8 and the turntable working surface 1 are respectively connected by bearings in the horizontal and vertical directions. The turntable working surface 1 is a table with an inner ring 25 and an outer ring 26. An annular stainless steel motor cooling structure is installed on the inner ring side of the turntable base 8. The motor cooling structure includes a cooling ring 27 and a cooling jacket 28. On the inside and outside surfaces of the cooling ring 27, there are spiral cooling liquid passages 29, and there are through holes between the two spiral cooling liquid passages at the top. Cooling jackets 28 are installed on both sides of 27; an inne...

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PUM

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Abstract

The invention relates to a precise numerical control turnplate which based on he double synchronized moment of force electrical motor series direct drive, belongs to the electrical machine application technology area. Including the turnplate foundation, the turnplate working surface, the electrical machinery cooling structure, the outer rotor permanent magnetism synchronization ring-like moment motor and internal rotor permanent magnetism synchronization ring-like moment motor, the invention has better radiation effect, has solved the big torque turnplate radiation problem, enhanced the numerical control turnplate torque density and the electrical motor service life; also enhanced the turnplate turning acceleration, the response speed and the system dynamic rigidity, the control precision.

Description

technical field [0001] The invention belongs to the technical field of motor application, and in particular relates to a precision numerical control turntable directly driven in series by dual synchronous torque motors. Background technique [0002] In the CNC turntable drive of machine tools, the traditional drive method is usually a rotary servo motor plus a worm gear (gear pair). Due to the existence of a mechanical transmission chain, although it has good static During movement such as rotation and parking, elastic deformation, friction and backlash will occur, resulting in mechanical vibration, slow motion response, poor dynamic stiffness and other nonlinear errors, making it difficult to achieve high-precision machining. [0003] The CNC turntable of modern high-end CNC machine tools adopts the "direct drive" technology of permanent magnet ring torque motor to realize "zero transmission", which is one of the important ways to solve the above problems. Because the "dir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P5/50H02P5/74H02K16/02H02K21/14H02K21/22H02K3/28H02K1/20H02K1/32
Inventor 夏加宽王成元王贵子董婷
Owner SHENYANG POLYTECHNIC UNIV
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