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Electromagnetic expanding sleeve centering device and using method

A technology of centering device and expansion sleeve, which is applied in the direction of expanding the mandrel, etc., can solve the problems of affecting the centering accuracy, poor control of the centering effect, deformation of the circular tube, etc., and achieves high degree of automation, fast automatic centering, The effect of simple structure

Active Publication Date: 2015-09-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of this centering device is relatively complex, slow, inefficient, inconvenient to use, and the centering force is not easy to control, which is likely to cause deformation of the centered circular tube and affect the centering accuracy

Method used

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  • Electromagnetic expanding sleeve centering device and using method

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Embodiment Construction

[0020] The present invention is described in detail below in conjunction with accompanying drawing:

[0021] An electromagnetic expansion sleeve centering device, two electromagnets are fixed on both ends of the centering device body 2, the sliding body is connected with the positioning body and sleeved on the centering device body 2, and the centering device body 2 has a The guide rail, the limiting positioning body and the sliding body cannot rotate around the axis, but can only slide along the axis. The limiting body is stuck on the centering device body 2, and the maximum moving distance of the limiting positioning body must not exceed here. The sliding body pushes the positioning body fixed on the centering device body 2 under the action of the electromagnet, the positioning body moves forward along the centering device body 2, the elastic flap 5 is pressed by the positioning body, and expands radially until Closely wait for the inner wall of the centering tube to complet...

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Abstract

The invention discloses an electromagnetic expanding sleeve centering device and a using method. The electromagnetic expanding sleeve centering device comprises a centering device body, an electromagnet, a sliding body, a locating body, elastic valves, a limiting body and the like. Electromagnetic devices are fixed to the two ends of the centering device body respectively. Centering mechanisms are arranged between the two electromagnetic devices, wherein the centering mechanisms are symmetrically arranged on the centering device body and are identical in structure. The sliding body is connected with the locating body and arranged on the centering device body in a sleeving mode. The locating body is provided with a plurality of elastic valves capable of shrinking and expanding. The limiting body for limiting the locating body and the elastic valves is arranged on the portion, at one sides of the elastic valves, of the centering device body. The electromagnet is used as a core for controlling the locating mechanisms in a non-contact mode, on the premise of not influencing the locating precision, the mechanisms are simplified, the automatic centering function is achieved, and the centering device has the advantages of being easy to control, and convenient and fast to operate.

Description

technical field [0001] The invention relates to a centering device for an electromagnetic expansion sleeve and a use method thereof. Background technique [0002] At present, the centering device is generally composed of mechanical connections such as connecting plates, pressure rods, and positioning shafts. The expansion of the positioning part is generally realized by a contact-type lead screw and a return spring. This kind of centering device has relatively complex structure, slow speed, low efficiency, and inconvenient use, and the centering force is not easy to control, which easily causes deformation of the centered circular tube and affects the centering accuracy. Contents of the invention [0003] In order to solve the deficiencies in the prior art, the present invention discloses a centering device for electromagnetic expansion sleeves and its use method. Under the action of electromagnets, the device can quickly realize automatic centering, and feed the electroma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/42
CPCB23B31/42
Inventor 李振华徐胜男杨凯
Owner SHANDONG UNIV
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