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Large spherical air bearing lapping device

An air bearing and large-scale technology, applied in the field of machining, can solve the problems of heavy weight, large volume and weight of air-floating balls, and high precision requirements, and achieve the effect of convenient grinding, broad application prospects and improving grinding accuracy.

Active Publication Date: 2017-05-03
HARBIN INST OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Large-scale spherical air bearings cannot be developed by general spherical bearing grinding methods due to their large volume, heavy weight and high precision requirements.
In practice, due to the large volume and weight of the air float ball, it brings great troubles to the operator during the grinding and handling process

Method used

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0020] The inventors of the present invention consider that large spherical air bearings cannot be developed by the general spherical bearing grinding method due to their large volume, heavy weight and high precision requirements. Specifically, due to the large volume and weight of the air floating ball, it brings great troubles to the operator during the grinding and handling process. At the same time, since large-scale spherical air bearings are often used to s...

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Abstract

The invention discloses a large spherical air bearing lapping device. The large spherical air bearing lapping device comprises a rotary table, an adapting piece, a bearing rope, a shaft system, a tension sensor, a driver and a controller, wherein a ball socket for mounting a spherical air bearing is fixed on the rotary table; the adapting piece is fixedly connected to a top plane of a to-be-ground floating ball, and handles are arranged at two ends of the adapting piece; one end of the bearing rope is connected to the adapting piece while the other end is connected to the tension sensor and the driver through the shaft system; the tension sensor is connected to the controller for collecting instantaneous tension information on the bearing rope in real time and sending the information to the controller; the controller is connected to the driver for controlling the bearing rope to stretch through the driver according to the instantaneous tension information sent by the tension sensor, so that the tension on the bearing rope is changed according to a predetermined rule. The device disclosed by the invention can unload the gravity of the floating ball, so that an operator can grind the floating ball conveniently, and therefore, the grinding precision is greatly improved. Meanwhile, adverse influence to the grinding precision by the gravity of the floating ball can be effectively avoided.

Description

technical field [0001] The invention relates to the field of machining, in particular to a lapping device for a large-scale spherical air bearing. Background technique [0002] Large spherical air bearings cannot be developed by general spherical bearing grinding methods due to their large volume, heavy weight and high precision requirements. In practice, due to the large volume and weight of the air floating ball, it brings great troubles to the operator during the grinding and handling process. At the same time, since large-scale spherical air bearings are often used to simulate the outer space environment in the aerospace field, there are extremely strict requirements for their grinding accuracy. The large self-weight of the air-floating ball is also an important factor affecting the accuracy of the spherical surface. [0003] Therefore, there is an urgent need for a large-scale spherical air bearing lapping device to solve the above problems. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B37/025B24B37/34
CPCB24B37/025B24B37/34B24B37/345
Inventor 王常虹李莉夏红伟张大力马广程庞志成
Owner HARBIN INST OF TECH
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