Non-coaxial circular grating angle measurement device and angle measurement method
A circular grating, non-coaxial technology, which is applied in the field of non-coaxial circular grating angle measuring devices, can solve the problems of difficulty in requiring the turntable to be coaxial with the standard, high coaxiality requirements, and difficulty in finding the center of rotation of the turntable.
Active Publication Date: 2017-03-22
河北太行计量检测有限公司
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Problems solved by technology
[0002] In the technical aspects of CNC rotary table, radar antenna test turntable, multi-axis work turntable, inertial turntable, etc., due to the special structure of the test turntable, the installation table does not completely coincide with the real rotation axis, and it is difficult to find the position of the turntable on the table. The center of rotation, and the traditional angle measurement method requires high coaxiality between the standard and the measured table, so it is difficult to achieve the coaxial requirements of the turntable and the standard during the measurement process
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[0025] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.
[0027] Such as Figure...
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The invention discloses a non-coaxial circular grating angle measurement device and angle measurement method, and particularly relates to the field of precision machinery. The non-coaxial circular grating angle measurement device comprises a grating angle measurement structure. The top part of the external shell of the grating angle measurement structure is flexibly connected with a bidirectional slide rail structure. The bidirectional slide rail structure is connected with the external fixing part of a test rotating table through an external supporting connecting rod and a fixing frame. The grating angle measurement structure comprises a circular grating and a reading head. The bidirectional slide rail structure is composed of two high-precision linear slide rails through vertical and flexible connection. The grating angle measurement structure is fixed on the rotating table to rotate along the test rotating table in calibration. The reading head rotates for a circle relative to the circular grating when the test rotating table rotates for a circle, and the rotating angular velocity is also equal. The azimuth angle and the angular velocity of the test rotating table can be measured by measuring the rotating angle and the angular velocity of the circular grating.
Description
technical field [0001] The invention relates to the field of precision machinery, in particular to a non-coaxial circular grating angle measuring device and an angle measuring method thereof. Background technique [0002] In the technical aspects of CNC rotary table, radar antenna test turntable, multi-axis work turntable, inertial turntable, etc., due to the special structure of the test turntable, the installation table does not completely coincide with the real rotation axis, and it is difficult to find the position of the turntable on the table. The center of gyration, while the traditional angle measurement method requires high coaxiality between the standard and the measured table, so it is difficult to achieve the coaxiality between the turntable and the standard during the measurement process. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a non-coaxial circular grating angle measurement method to realiz...
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Inventor 张书贵张登鹏王涛刘立杰贾立平韩素超张俊爽白景超孙建新杨嘉亮李红菊
Owner 河北太行计量检测有限公司