A bridge plate for measuring positional accuracy between a prismatic guide rail and a dovetail guide rail
A dovetail guide rail and prismatic technology, which is applied in measuring devices, mechanical measuring devices, angle/taper measurement, etc., and can solve problems such as parallelism errors between prismatic guide rails and dovetail guide rails
Inactive Publication Date: 2016-11-09
CHANGZHOU INST OF MECHATRONIC TECH
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a bridge plate for measuring the position accuracy between the prismatic guide rail and the dovetail guide rail, so as to solve the measurement problem of the parallelism error between the prismatic guide rail and the dovetail guide rail
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[0022] In order to make the content of the present invention more clearly understood, the present invention will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.
[0023] like figure 1 , figure 2 , image 3 As shown, a bridge plate for measuring the positional accuracy between the prismatic guide rail and the dovetail guide rail includes a main board 3, and a measuring assembly and a datum assembly installed on the main board 3;
[0024] The measuring assembly includes a lever structure 5 and a dial gauge 4, the fulcrum 6 of the lever structure 5 is movably installed on the main board 3, the lower end of the lever structure 5 is connected with a spherical structure 7 for contacting with the dovetail guide rail surface, the The upper end of the lever structure 5 is in contact with the head of the dial gauge 4;
[0025] The datum surface component is clamped on the surface of the prismatic guide rail and is...
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The invention discloses a bridge plate for measuring positional accuracy between a prismatic guide rail and a dovetail guide rail. The bridge plate comprises a main plate and a measuring assembly and a reference surface assembly which are mounted on the main plate. The measuring assembly comprises a lever structure and a dial gauge. A fulcrum of the lever structure is movably mounted on the main plate, and he lower end of the lever structure is connected with a spherical structure for making contact with a dovetail guide rail surface. The upper end of the lever structure is in contact with a dial gauge head. The reference surface assembly is clamped on a prismatic guide rail surface, and is in contact with the prismatic guide rail surface. According to the invention, the prismatic guide rail surface is adopted as a reference surface; two cylindrical mandrels of the reference surface assembly are respectively abutted on two side faces of the prismatic guide rail; and the spherical structure at the lower end of the lever structure is contacted with the dovetail guide rail surface; after the bridge plate structure is pulled, the lever structure pushes the dial gauge with the fulcrum as the center; and the dynamic changes of the dial gauge attached at the upper end of the lever structure are observed to detect whether the dovetail guide rail surface and the reference surface are parallel.
Description
technical field [0001] The invention relates to a bridge plate for measuring the position accuracy between a prismatic guide rail and a dovetail guide rail, and belongs to the technical field of geometric accuracy measurement of machine tool guide rails. Background technique [0002] The bridge plate is a metal plate with two supporting surfaces, and the bridge plate directly affects the acquisition of flatness measurement data and the evaluation of error values. The flatness and straightness of tables, guide rails and precision workpieces. [0003] The combination of prismatic guideway and dovetail guideway is relatively rare, and generally there is no special inspection bridge. We provide an inspection bridge to measure the position accuracy of prismatic guideway and dovetail guideway. Contents of the invention [0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a bridge plate for measuring th...
Claims
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IPC IPC(8): G01B5/00G01B5/24
CPCG01B5/00G01B5/24
Inventor 俞浩荣姚素芹徐嘉乐韩义
Owner CHANGZHOU INST OF MECHATRONIC TECH