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An indexing device for ultra-precision instruments

A technology for indexing devices and precision instruments, which is applied in the direction of electromechanical devices, transmission devices, supporting machines, etc., can solve the problems of affecting the processing accuracy of ultra-precision instruments, increasing the accuracy level, and huge load-bearing devices, so as to avoid one-time measurement errors, Improved accuracy level and reduced weight

Active Publication Date: 2017-01-25
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the indexing systems of existing ultra-precision instruments use worm gear mechanisms for transmission, that is, the rotary motion of the motor is transformed into linear motion in the indexing direction through the worm gear mechanism, which leads to inherent errors in the indexing system. This further affects the processing accuracy of ultra-precision instruments; moreover, the load-bearing device of the screw nut auxiliary transmission mechanism is relatively large and complex, which increases the difficulty of improving the accuracy level

Method used

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  • An indexing device for ultra-precision instruments
  • An indexing device for ultra-precision instruments
  • An indexing device for ultra-precision instruments

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Embodiment Construction

[0031] see Figures 1 to 6 , In this embodiment, an indexing device for ultra-precision instruments is set on the workbench, including: 1 motor, 2 harmonic reducers (2-1 wave generator, 2-2 flexible wheel, 2 -3 rigid wheels), 3 lead screws, 4 load-bearing devices, 5 roller guide rails, 6 opening and closing nut pairs, 7 tie rods, 8 inner and outer table assemblies, 9 guide rail assemblies, 11 indexers and 12 lead screw supports;

[0032] see figure 2 and Image 6 , the output shaft of the motor 1 and the lead screw 3 are connected in series through the harmonic reducer 2, which greatly reduces the error caused by turning the rotary motion into a linear motion; the lead screw support seats are located at both ends of the lead screw 3; A load-bearing device 4 and an opening and closing nut pair 6 are respectively provided between the two ends of the lead screw support bases; an indexer 11 is provided at the front end of the lead screw 3; The opening and closing nut pair 6 an...

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Abstract

The invention discloses a dividing apparatus for an ultra-precise instrument. The dividing apparatus for the ultra-precise instrument is arranged on a working table and characterized by comprising a motor, a harmonic reducer, a lead screw, a bearing device, a roller guide way, a half nut pair, a pull rod, an internal-external table assembly, a guide way assembly, a graduator and a lead screw supporting seat; the dividing apparatus obtains the rotating speed of the motor according to the graduator, and the harmonic reducer is driven to perform deceleration rotation so that the lead screw can be driven to rotate; accordingly, the half nut pair can drive the internal-external table assembly through the pull rod to form a front-back moving structure. By means of the dividing apparatus for the ultra-precise instrument, errors caused by conversion from rotational motion to linear motion can be reduced, and therefore the accuracy of a dividing system of the ultra-precise instrument can be increased.

Description

technical field [0001] The invention belongs to the field of ultra-precision instruments, in particular to an indexing device for ultra-precision instruments. Background technique [0002] With the development of aerospace, defense industry, microelectronics industry, modern medicine and bioengineering technology, the demand for precision / ultra-precision mechanical parts (feature size is in the micrometer level to millimeter level) is increasingly urgent. The specialization of its structure and shape, the diversification of parts and materials, and the high precision of size and surface quality have become the distinctive features of high-precision mechanical parts and their micro-devices and equipment. requirements are getting higher and higher. [0003] Its ultra-precision instrument is composed of five parts: power system, indexing system, control system and monitoring system. Among them, the indexing system is the most critical part of the ultra-precision instrument, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H25/20F16M11/04F16M11/18F16H37/12H02K7/10
Inventor 黄康孙顺强葛新方王卫荣袁炜黄鹏
Owner HEFEI UNIV OF TECH
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