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Permanent magnet synchronous motorized spindle

A permanent magnet synchronous and electric spindle technology, which is applied in the direction of large fixed members, metal processing machinery parts, metal processing equipment, etc., can solve the problems of precise control of position and speed, low surface processing accuracy of parts, and low efficiency of drive system , to achieve the effect of low working noise, high processing precision, easy and fast start and stop

Pending Publication Date: 2016-11-09
伊泽瑞尔(大连)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electric spindle of the existing CNC machine tool is driven by an asynchronous motor. The disadvantages of the asynchronous motor drive method are: low efficiency of the drive system, severe heat generation, high temperature, poor axial stability, low surface processing accuracy of parts, difficulty in starting with heavy load, and Large current, poor load capacity at low speed, difficult to achieve precise control of position and speed

Method used

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Embodiment Construction

[0015] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0016] see Figure 1-3 , a permanent magnet synchronous electric spindle, including a stator, a rotor 4, an electric spindle cylinder 3, a permanent magnet 5, an expansion sleeve 6 and a bearing, the bearing includes a front end bearing 8 and a rear end bearing 9, and the stator includes a stator core 1 And the stator winding 2, the stator core 1 is installed in the electric spindle cylinder 3, the stator winding 2 is embedded in the groove of the stator core 1, the rotor 4 is provided with a groove, and the permanent magnet 5 is installed in the groove of the rotor 4, The rotor 4 is installed on the shaft 7 through the expansion sleeve 6, the shaft 7 runs through the electric spindle cylinder 3 and is supported by the front end bearing 8 and the rear end bearing 9, and the shaft 7 is provided with an axial limiter. The expansion sleeve 6 includes...

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Abstract

The invention discloses a permanent magnet synchronous motorized spindle. The permanent magnet synchronous motorized spindle comprises a stator, a rotor, a motorized spindle cylinder, a permanent magnet, an expansion sleeve and bearings. The bearings include the front end bearings and the rear end bearings. The stator comprises a stator iron core and a stator winding. The stator iron core is arranged in the motorized spindle cylinder. The stator winding is inlaid in a groove of the stator iron core. The permanent magnet is arranged in a groove of the rotor. The rotor is arranged on a shaft through the expansion sleeve, and the shaft penetrates the motorized spindle cylinder. The permanent magnet synchronous motorized spindle is compact in structure, small in size and rotational inertia, capable of being easily and rapidly started and stopped, large in output power and wide in speed adjusting range and has the ideal torque-power character. The expansion sleeve connecting manner is adopted in the rotor of the motorized spindle, the overall rigidity of the rotor is improved, and the influence of hot shrinkage on the permanent magnet in the rotor is eliminated. According to the permanent magnet synchronous motorized spindle, heat deformation of the motorized spindle is reduced, epoxy resin is adopted for potting overall, the insulating strength is high, and integrity is good; and the heat conduction capability is high, the motor temperature rise is reduced, control is accurate, the machining precision is high, and the work noise is low.

Description

technical field [0001] The invention relates to a numerical control machine tool device, in particular to a permanent magnet synchronous electric spindle. Background technique [0002] CNC machine tool is a commonly used device in machining. CNC machine tool is the abbreviation of digital control machine tool. It is an automatic machine tool equipped with a program control system. The control system can logically process programs with control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the numerical control device through the information carrier. After calculation and processing, various control signals are sent by the numerical control device to control the movement of the machine tool, and the parts are automatically processed according to the shape and size required by the drawing. CNC machine tools better solve complex, precise, small-batch and multi-variety parts processing problems, and are flexible and high-ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B19/02
CPCB23Q1/70
Inventor 孙乃辉杨立远陈伟
Owner 伊泽瑞尔(大连)科技有限公司
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