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Electric spindle structure suitable for longhole inner circle processing

An electric spindle and deep hole technology, which is applied in metal processing equipment, machine tools designed for grinding the rotating surface of workpieces, manufacturing tools, etc., can solve the problem that the spindle is difficult to achieve sufficient accuracy requirements, reduce the service life of the spindle bearing, and replace the intermediate position bearing. Difficulties and other problems, to achieve the effect of improving cutting quality, improving machining accuracy, and reducing alternating stress

Inactive Publication Date: 2011-11-16
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current electric spindle for deep hole inner circle machining needs to go deep into the inner hole of the workpiece because the tool needs to be machined. The spindle adopts a cantilever type single support with a long overhang, resulting in low rigidity of the spindle end, which is prone to bending deformation under the action of cutting force, which affects the performance of the spindle. cutting quality
Due to the limitation of the aperture of the workpiece to be processed, the diameter of the spindle should not be too large, and the spindle needs to have a built-in motor, which leads to the structure of the spindle being too slender, it is difficult to meet the sufficient precision requirements during spindle machining, and the assembly process of the spindle is also very cumbersome. Difficult to replace, under alternating loads, reduces the service life of the spindle bearings

Method used

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  • Electric spindle structure suitable for longhole inner circle processing
  • Electric spindle structure suitable for longhole inner circle processing
  • Electric spindle structure suitable for longhole inner circle processing

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Embodiment Construction

[0017] see figure 1 , figure 2 , the present invention relates to an electric spindle structure suitable for deep hole inner circle machining, including a motor casing 13, a motor rotor 9, a motor stator 8, a motor spindle 7, and a motor front bearing 6 and a motor front for supporting the motor spindle 7. Bearing housing 12, motor rear bearing 10 and motor rear bearing housing 11, grinding wheel shaft housing 3, grinding wheel shaft 2, grinding wheel front bearing 1 supporting grinding wheel shaft 2, grinding wheel rear bearing 4, coupling shaft connecting grinding wheel shaft 2 and motor main shaft 7 device 5.

[0018] Motor stator 8 is housed in motor shell 13, and motor main shaft 7 is housed on the inner axis position of motor shell 3, and motor rotor 9 is housed in the middle part of motor main shaft 7, and motor main shaft 7 passes motor front bearing 6 and motor rear bearing that are installed at its two ends. 10 supports, the motor front bearing 6 is installed in ...

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Abstract

The invention relates to an electric spindle structure suitable for longhole inner circle processing. The electric spindle structure comprises a motor shell (13), a motor rotor (9), a motor stator (8), a motor spindle (7), and a motor front bearing (6) and a motor front bearing seat (12) which are used for supporting the motor spindle (7), a motor rear bearing (10) and a motor rear bearing seat (11), a grinding spindle shell (3), a grinding spindle (2), a grinding wheel front bearing (1) and a grinding wheel rear bearing (2) which are used for supporting the grinding spindle (2), and a coupler (5) which is connected with the grinding spindle (2) and the motor spindle (7); and the electric spindle structure is characterized in that: the motor stator (8) is arranged in the motor shell (13);and the motor spindle (7) is arranged at the axial line position in the motor shell (3). The processing accuracy and assembly accuracy of the spindle structure can be guaranteed.

Description

technical field [0001] The invention relates to mechanical processing equipment, which is an electric spindle structure used for machining (boring, grinding) the inner circle of deep holes. Background technique [0002] The electric spindle for deep hole inner circle machining is a kind of electric spindle structure that penetrates the tool into the inner hole to cut and grind the inner circle surface of the workpiece. The current electric spindle for deep hole inner circle machining needs to go deep into the inner hole of the workpiece because the tool needs to be machined. The spindle adopts a cantilever type single support with a long overhang, which leads to low rigidity of the spindle end, and is prone to bending deformation under the action of cutting force, which affects the spindle. cutting quality. Due to the limitation of the aperture of the workpiece to be processed, the diameter of the spindle should not be too large, and the spindle needs to have a built-in mot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B41/02B23B19/02B24B5/48
Inventor 蒋书运蔡英刘仕良李全超
Owner SOUTHEAST UNIV
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