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Ultra-high precision automatic multi-tooth indexing table

A multi-tooth indexing table and indexing table technology, which is applied in the direction of measuring devices, instruments, optical devices, etc., to achieve the effect of ultra-high precision measurement

Active Publication Date: 2017-01-25
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another example is a rocket or an inertial navigation vehicle that uses inertial technology to self-seek north. When the "multi-position method" is used to improve the accuracy of north-seeking, the multi-tooth indexing table is an accurate indexing device, but it must adopt an automatic working method

Method used

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  • Ultra-high precision automatic multi-tooth indexing table

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Such as figure 1 As shown, an ultra-high-precision automatic multi-tooth indexing table includes a movable toothed plate 1, a fixed toothed plate 2, a housing base 6 and a stepping motor 12, wherein the side wall has a cylindrical shape with several openings The lower end of the housing base 6 is fixedly connected with the stepping motor 12, and the inside of the housing base 6 is provided with a lifting cylinder 10 coaxial with the housing base 6, and the outer circular side wall of the lifting cylinder 10 is evenly installed along the circumference There are several, for example, three linear guide rails 8 in the vertical direction, and the sliders of the linear guide rails 8 are fixed to the housing base 6, so that the lifting tube 10 can move up and down along the linear guide rails 8 on the housing base 6; The mandrel of ...

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Abstract

The invention relates to the fields of geometric quantity testing and measuring technology and instrument technology, and specifically discloses an ultra-high-precision automated multi-tooth indexing table. In the indexing table, the lower end of a base of a housing is fixedly connected to a stepping motor, and the upper end of the base of the housing is fixedly connected to a fixed tooth disc. A coaxial lifting cylinder is disposed in the base of the housing, a 26-bit optical encoder is fixed at the bottom end of the lifting cylinder, and a leading screw fixed at an axis on the lower end of the 26-bit optical encoder is installed at an axis of the stepper motor to enable the stepping motor, when being lifted up and down, to drive the lifting cylinder for lifting movement. The upper end of the 26-bit optical encoder is connected to a torque motor fixed at the upper end of the lifting cylinder through a flexible coupling, the torque motor is connected to a tooth disc mandrel through a universal spindle coupling, and the tooth disc mandrel passes through the fixed tooth disc and is fixedly connected to a movable tooth disc above the fixed tooth disc. With the angle measurement repeatability standard deviation of 0.004"-0.002", and the zero indexing limit deviation after compensation of + / -0.03", the indexing table is capable of ultra-high-precision measurement.

Description

technical field [0001] The invention belongs to the field of geometric measurement measurement technology and instrument technology, and in particular relates to an ultra-high-precision automatic multi-tooth indexing table. Background technique [0002] The multi-tooth indexing table is composed of a pair of plane centripetal end tooth discs with identical parameters such as diameter, number of teeth, and tooth shape, and a lifting and locking mechanism. After the two toothed discs mesh with each other, the indexing accuracy can be improved due to the average effect of multi-tooth meshing. Multi-tooth indexing table is a fixed-angle circular indexing equipment commonly used in metrology testing and finishing. Multi-tooth indexing technology has been extended to a variety of special testing equipment. [0003] The first patent of the multi-tooth indexing table was obtained by the American A·A·GaGe company in 1960. By 1984, the indexing error of the multi-tooth indexing table...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/26
Inventor 李永刚商秋芳王震张忠武孙方金
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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