Grating scale fixing method and three-coordinate measuring instrument
A fixing method and ruler technology, applied to measuring devices, instruments, optical devices, etc., can solve the problems of high installation difficulty, difficulty in maintaining the consistency of installation accuracy, expansion of guide rails or body materials, etc., and achieve the effect of high attachment accuracy
Inactive Publication Date: 2022-02-01
徕司仪器科技(江苏)有限公司
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[0003] With the development of society and the progress of science and technology, the requirements for the accuracy of the three-coordinate measuring instrument are getting higher and higher, so the grating scale is required to have higher installation accuracy, especially when the grating scale is installed on the guide rail or the body, when the temperature changes, Because the expansion coefficient of the guide rail or body is different from that of the grating scale, it may cause the expansion / contraction of the guide rail or body material to affect the grating scale
[0004] For this reason, some technologies have been developed, such as setting a material similar to double-sided tape between the grating scale and the guide rail or the body, through which the grating scale is adhered to the guide rail or the body, but this method is difficult to install , while the consistency of installation accuracy is difficult to maintain
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[0034] Please refer to Figure 1-Figure 5 The embodiment of the present invention provides a method for fixing the grating scale, which is used to fix the grating scale 10 on the mounting surface 211 of the substrate 21, so as to further improve the installation accuracy of the grating scale 10 and reduce the impact of the grating scale 10 under different ambient temperatures. The influence of the thermal expansion of the material of the base body 21 will be further explained in the present application below with reference to these figures.
[0035] At the same time, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom", etc. are based on the orientation or positional relationship shown in the drawings, and only It is for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific o...
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Abstract
The invention provides a grating scale fixing method which comprises the steps that a grating scale and a base body are provided, wherein a thermal expansion coefficient of the grating scale is smaller than that of the base body, a first positioning base and a second positioning base are fixed to an installation face, the installation face comprises an installation area, silicone oil liquid drops are evenly distributed in the length direction of the installation area at intervals, the silicone oil liquid drops are heated through using hot air, the silicone oil liquid drops are evenly distributed in the installation area to form a silicone oil layer, and the grating scale is attached to the silicone oil layer. On one hand, the method is high in attaching precision, and on the other hand, due to the fact that the grating scale is isolated from the base body through the silicone oil layer, and the silicone oil layer has the buffering and lubricating effects, when the base body slightly expands or contracts, the position and the size of the grating scale located on the silicone oil layer are kept unchanged, and flexible deformation of the grating scale is not caused. Meanwhile, the invention further provides a three-coordinate measuring instrument applying the method.
Description
technical field [0001] The invention relates to a method for fixing a grating scale and a three-coordinate measuring instrument using the installation method. Background technique [0002] The grating scale is one of the core components of the three-coordinate measuring instrument, including the grating scale set on the guide rail or the body and the reading head for reading from the grating scale. [0003] With the development of society and the progress of science and technology, the requirements for the accuracy of the three-coordinate measuring instrument are getting higher and higher, so the grating scale is required to have higher installation accuracy, especially when the grating scale is installed on the guide rail or the body, when the temperature changes, Since the expansion coefficient of the guide rail or body is different from that of the grating scale, the expansion / contraction of the guide rail or body material may affect the grating scale. [0004] For this ...
Claims
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IPC IPC(8): G01B11/00
CPCG01B11/007G01B11/005
Inventor 郝建雄
Owner 徕司仪器科技(江苏)有限公司
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