Electric spindle

Abstract

The invention relates to the technical field of machine tools, in particular to an electric spindle, and aims to solve the problems that an electric spindle in an existing tool grinder has a complicated overall structure, assembly and late maintenance are inconvenient and demands of users are difficult to meet. In order to solve the problems, the electric spindle comprises a stator, a rotor, a workpiece clamping assembly and a sliding assembly; the rotor can automatically rotate and is arranged in the stator in a non-slipping manner; the sliding assembly is arranged in the rotor in a slidablemanner in the axial direction of the rotor, a first sliding cavity is formed in the rotor, and a sliding range of the sliding assembly is the range allowed by the first sliding cavity; the rotor penetrates out of one end, close to the output end of the rotor, of the sliding assembly, one end of the workpiece clamping assembly is fixedly connected with one end, allowing the rotor to penetrate out,of the sliding assembly, and the stator penetrates out of the other end of the workpiece clamping assembly; and a gas inlet channel is also formed in the sliding assembly and communicates with the first sliding cavity. With adoption of the structural design, axial size of the electric spindle is reduced, and the electric spindle is easy to mount and maintain.

Description

technical field [0001] The invention relates to the technical field of machine tools, in particular to an electric spindle. Background technique [0002] With the development of modern manufacturing technology, the demand for the variety and quantity of high-precision special knives is increasing, and the blade shape of knives is becoming more and more complex, and it is difficult to manufacture with ordinary tool grinders and traditional craftsmanship. In order to meet these complex production requirements, the application of CNC tool grinding machine technology is becoming more and more common, and its electric spindle requires higher precision, higher stability and more efficient and quick replacement of workpieces. [0003] In the existing CNC tool grinder, the workpiece clamping unit of the motorized spindle is permanently installed at the rear end of the motorized spindle. While the axial dimension of the motorized spindle is increased, the sealing structure of the wor...

AI Technical Summary

Problems solved by technology

[0002] With the development of modern manufacturing technology, the demand for the variety and quantity of high-precision special knives is increasing, and the blade shape of knives is becoming more and more complex, and it is difficult to manufacture with ordinary tool grinders and traditional craftsmanship. In order to meet these complex production requirements, the application of CNC tool grinding machine technology is becoming more and more common, and its electric spindle requires higher precision, higher stability and more efficient and quick replacement of workpieces

[0003] In the existing CNC tool grinder, the workpiece clamping unit of the motorized spindle is permanently installed at the rear end of the motorized spindle. While the axial dimension of the motorized spindle is increased, the sealing structure of the workpiece clamping unit is complicated, resulting in a complex overall structure of the motorized spindle. Inconvenient and post-maintenance, it is difficult to meet user needs

[0004] Correspondingly, a new type of electric spindle is needed in this field to solve the problems that the existing tool grinder electric spindle has a large axial dimension, complex structure of workpiece clamping unit, inconvenient assembly and post-maintenance, and difficulty in meeting user needs.

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