Positioning device of absolute type grating ruler photoelectric receiving device
A photoelectric receiving and positioning device technology, which is applied in the direction of using optical devices, using optical devices to transmit sensing components, measuring devices, etc., can solve the problems of poor reliability and low precision of grating measuring mechanisms, achieve convenient operation, reduce adjustment time, Observe the clear effect
Inactive Publication Date: 2014-04-02
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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[0005] The purpose of the present invention is to propose a positioning device for an absolute grating ruler photoelectric receiving device, so as to solve the problems of poor reliability and low precision of the grating measuring mechanism in the prior art
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[0023] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0024] See attached figure 1 And attached figure 2 , a positioning device of an absolute grating ruler photoelectric receiving device of the present invention comprises:
[0025] A support structure 1 consisting of a base 9, an intermediate base 10, an upper end bracket 11 and a connecting rod 12, the base 9, the intermediate base 10 and the upper end bracket 11 are fixed on the connecting rod 12 from bottom to top;
[0026] The device adjustment mechanism fixed on the upper bracket 11, the device adjustment mechanism includes a device fixing mechanism 7 and a rack transmission mechanism 8, the rack transmission mechanism 8 is fixedly connected with the upper bracket 11, and is fixed by the device The mechanism 7 realizes the clamping of the photoelectric receiving device 27, and realizes the adjustment of the vertical displacement of the device fixin...
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The invention relates to a positioning device of an absolute type grating ruler photoelectric receiving device, belongs to the technical field of photoelectric measurement, and aims at solving the problems of poor reliability and low precision of a grating measuring mechanism in the prior art. The positioning device comprises a support structure, a device adjusting mechanism, an indicating grating adjusting mechanism and a CCD (charge coupled device), wherein the support structure consists of a base, a middle seat, an upper end support frame and a connecting rod, the device adjusting mechanism is fixedly arranged on the upper end support frame, and realizes the fixation and the adjustment of the photoelectric receiving device, the indicating grating adjusting mechanism is fixedly arranged at the middle seat and realizes the fixation and the adjustment of an indicating grating, the CCD is fixedly arranged on the base, the upper end of the CCD is connected with an objective lens, the relative positions of the photoelectric receiving device and the indicating grating are observed through the objective lens and the CCD, and further, the bonding is realized. The mechanical fine adjustment is adopted, in addition, the imaging of the CCD in a computer is utilized for observation, the operation is convenient, the observation is clear, the adjustment time is greatly reduced, and the reliability and the precision of the whole grating ruler measuring mechanism are also improved.
Description
technical field [0001] The invention belongs to the technical field of photoelectric measurement, and in particular relates to a positioning device for an absolute grating ruler photoelectric receiving device. Background technique [0002] In the field of precision measurement and displacement control, the use of grating as a benchmark is internationally recognized as the most practical, economical and reliable technical measure to obtain high precision. The grating ruler measuring mechanism is a representative product to achieve this approach, and is widely used in various machine tools, electromechanical equipment, and automated measuring equipment. [0003] The grating scale used on the CNC machine tool is composed of the main grating and the indicating grating. The main grating is glued on the scale shell, and the indicating grating is glued on the indicating grating carriage of the reading head. When the feed axis of the CNC machine tool moves, the scale The shell and ...
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IPC IPC(8): G01D11/00G01D5/26G01B11/02
Inventor 杨帆曾琪峰刘阳牛文达张吉鹏孙强
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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