Processing machine tool and magnetostriction-based precise feeding driving device

A technology of feed drive and magnetic drive, which is applied in the direction of drive devices, metal processing machinery parts, metal processing equipment, etc., can solve the problems of conductive slip rings not being in electrical contact, low reliability, complex device structure, etc., to achieve Improve the accuracy of telescopic displacement, improve the reliability of the device, and the effect of accurate displacement output

Active Publication Date: 2015-04-08
伶机(上海)驱动技术中心(有限合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The conductive slip ring is easy to wear, and the worn conductive slip ring will cause the electrical contact to be lost, which will affect the processing progress and processing accuracy;
[0006] 2. Since the conductive slip ring is easy to wear, it cannot achieve high-speed operation;
[0007] 3. Due to the high installation requirements of conductive slip rings, there are high requirements for control conditions such as voltage, so it is easy to cause problems of low reliability in actual production;
[0008] 4. Since the conductive slip ring is an independent part, the structure of the device is complex and difficult to maintain
[0009] Therefore, the existing precision feed system cannot meet the needs of modern industry for precision machining

Method used

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  • Processing machine tool and magnetostriction-based precise feeding driving device
  • Processing machine tool and magnetostriction-based precise feeding driving device
  • Processing machine tool and magnetostriction-based precise feeding driving device

Examples

Experimental program
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Effect test

Embodiment 1

[0082] Such as figure 1 As shown, this embodiment provides a precision feed drive device based on magnetostriction, including a magnetostrictive drive shaft and a ring magnetic field generating device arranged outside the magnetic drive shaft. The ring magnetic field generator Relative rotation with the magnetic drive shaft; where:

[0083] The magnetic drive shaft body includes: an upper rigid connector 2, a preload adjustment member 3, a magnetic frame body 4, a magnetic displacement drive mechanism 7, a displacement output rod 9, a lower rigid connector 10 and an elastic end cover part 11 , the magneto-induced frame body 4 is rigidly connected between the upper rigid connector 2 and the lower rigid connector 10, the magneto-induced displacement drive mechanism 7 is arranged in the magneto-induced frame body 4, and the magneto-induced displacement drive mechanism 7 The lower end of the displacement output rod 9 is connected, and the output end of the displacement output rod...

Embodiment 2

[0110] Embodiment 2 is a variation of embodiment 1, and its working principle is the same as that of embodiment 1.

[0111] On the basis of embodiment 1, this embodiment differs from embodiment 1 in that:

[0112] In this embodiment, the ring magnetic field generating device includes: a movable magnetic actuator and a rigid frame magnetic circuit structure, the movable magnetic actuator is arranged inside the rigid frame magnetic circuit structure, and the rigid frame The outer part of the magnetic circuit structure is fixed, and the movable magnetic actuator approaches or moves away from the magnetically actuated drive shaft, which can also play a role in locking the magnetically actuated drive shaft while adjusting the strength of the magnetic field.

[0113] Further, the movable magnetic actuator adopts the following form:

[0114] A pair of electromagnetic coils or a pair of permanent magnets for symmetrically applying an excitation magnetic field, and the pair of electro...

Embodiment 3

[0117] Embodiment 3 is a variation of Embodiment 2.

[0118] On the basis of embodiment 2, this embodiment differs from embodiment 2 in that:

[0119] The movable magnetic actuator adopts the following form:

[0120] An independent electromagnetic coil, the independent electromagnetic coil is sleeved on the outside of the magnetic drive shaft body.

[0121] In this embodiment, the magnetic frame body is a non-magnetic material body, and a closed magnetic circuit is formed among the rigid frame magnetic circuit structure, the upper rigid connector, the magnetic displacement drive mechanism, and the lower rigid connector. Such as Figure 4 shown.

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Abstract

The invention provides a magnetostriction-based precise feeding driving device. The device comprises a magnetic-induced driving shaft body, and a loop magnetic field generating device which sleeves the magnetic-induced driving shaft body is rotated relative to the magnetic-induced driving shaft body; an excitation magnetic field for enabling a magnetic-induced displacement driving mechanism to drive and displace is arranged between the loop magnetic field generating device and the magnetic-induced driving shaft body; an elastic end cover part of the magnetic-induced driving shaft body is elastically deformed only in the displacement output direction. The invention also provides a processing machine tool equipped with the magnetostriction-based precise feeding driving device. According to the magnetostriction-based precise feeding driving device, the structure is simple; the mass is light; the magnetism between a permanent magnet and / or an electromagnet is utilized to generate processing acting force for rotating and reciprocating vibrating; the control precision is high; the response frequency is high; a conductive sliding ring is removed, so that the reliability of the device is improved; the magnetostriction-based precise feeding driving device is particularly suitable for hard and brittle materials and metals which are difficultly processed such as titanium.

Description

technical field [0001] The invention relates to a precision feed device in the technical field of mechanical processing, in particular to a processing machine tool and a magnetostrictive-based precision feed drive device thereof. Background technique [0002] Milling, grinding, polishing, drilling and other processing methods through tools are widely used in mold manufacturing and machining industries, and the tool motion feed system is an important part of precision mold processing devices; the drive control of the feed device is the most important part of the realization The key to machining accuracy. [0003] Existing precision feed systems, such as the invention patent application with the publication number 104015084A, the publication date is September 3, 2014, and the invention title is "Device for Translational Rotation Processing and Tensile Testing", use electromagnetic force pairing device The technical scheme of controlling the translational rotation movement of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q5/04B06B1/08
CPCB06B1/08B23Q5/04
Inventor 杨斌堂
Owner 伶机(上海)驱动技术中心(有限合伙)
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