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High-precision granite aerostatic slideway

An air-floating guide rail, granite technology, applied in measuring devices, instruments, mechanical devices, etc., can solve problems such as the error detection accuracy of rubber discs, and achieve the effects of convenient production, reduced cost, and improved detection accuracy and stability.

Pending Publication Date: 2020-02-28
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a high-precision granite air-floating guide rail to solve the urgent need for a high-precision, high-stability linear guide rail for ring throwing machine tools, thereby improving the detection accuracy of the shape error of the rubber disc

Method used

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  • High-precision granite aerostatic slideway
  • High-precision granite aerostatic slideway
  • High-precision granite aerostatic slideway

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specific Embodiment approach 1

[0015] Specific implementation mode one: as Figure 1 ~ Figure 3 As shown, this embodiment discloses a high-precision granite air bearing guide rail, including a granite guide rail 1, a carriage 2, twelve air bearing blocks 3, twelve adjusting screws 4 and twelve nuts 5; the granite U-shaped grooves 6 are respectively arranged in the middle part of the upper end surface and the middle part of the lower end surface of the guide rail 1, and the two U-shaped grooves 6 are arranged opposite to each other. There are chutes, the left side and the right side of the carriage 2 are respectively provided with four threaded holes 1 arranged in a matrix form, and the upper end surface and the lower end surface of the carriage 2 are respectively provided with two threaded holes 2, which are located on the carriage 2 The two threaded holes 2 on the end surface and the two threaded holes 2 located on the lower end surface of the carriage 2 are arranged along the front and back direction of t...

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Abstract

The present invention provides a high-precision granite aerostatic slideway, and belongs to the technical field of air hydrostatic guideways. U-shaped grooves are formed in the middle of the upper endface and the middle of the lower end face of the granite aerostatic slideway, the two U-shaped grooves are oppositely arranged and penetrate through the front end face and the rear end face of the granite aerostatic slideway, a dragging plate is provided with a chute, each of the left side and the right side of the dragging plate are respectively provided with four first threaded holes formed ina matrix mode, each of the upper end surface and the lower end surface of the dragging plate is respectively provided with two second threaded holes, the two second threaded holes located at the upperend face of the dragging plate and the two second threaded holes located at the lower end face of the dragging plate are arranged in the front and back direction of the dragging plate, all the firstthreaded holes and all the second threaded holes communicate with the chute, an adjusting screw rod is screwed in each first threaded hole and each second threaded hole, the adjusting screw rods are used for attaching aerostatic blocks to the granite slideway, and each adjusting screw rod is locked and fixed through nuts. The high-precision granite aerostatic slideway can ensure that the detectionresult has micron-order precision due to the fact that the device has high precision.

Description

technical field [0001] The invention belongs to the technical field of air static pressure guide rails, in particular to a high-precision granite air bearing guide rail. Background technique [0002] Annular polishing is one of the key technologies for processing large-aperture planar optical components, and it has significant advantages in improving the material removal effect and suppressing intermediate frequency errors. Large-scale ring polishing machines usually use a marble base plate, which is used as a polishing disc (rubber disc) by pouring asphalt on its surface. A multi-station bridge mechanism is usually set above the rubber plate of the ring polishing machine to form multiple stations. One of the stations is used to place the correction plate, and the other stations are used to place the workpiece tray. A problem that has always existed in ring throwing technology is the efficient convergence of low-frequency surface error of components. The surface error of ...

Claims

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Application Information

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IPC IPC(8): G01B21/20
CPCG01B21/20G01B5/0009
Inventor 刘海涛孙雅洲史小全
Owner HARBIN INST OF TECH
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