Method for detecting linearity of overlong lathe bed
A detection method and straightness technology, applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problem that the bed cannot be detected effectively
Inactive Publication Date: 2019-04-23
WUHAN HEAVY MACHINE TOOL GRP
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Problems solved by technology
[0005] The purpose of the present invention is to address the deficiencies in the prior art and provide a method for detecting the straightness of a super-long and super-large bed, so as to solve the technical problem that the bed over 60 meters cannot be effectively detected
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[0018] Its steps and methods of the technical scheme adopted by the present invention to solve its technical problems are:
[0019] 1) Place the main body 1 of the autocollimator on the adjustable bridge plate 2, and the adjustable bridge plate 2 is placed on the end of the bed;
[0020] 2) place the magnetic reflection mirror 3 on the detection bridge plate 4, and the detection bridge plate 4 is placed on the side of the bed to be inspected;
[0021] 3) The axis of the parallel light pipe of the main body 1 of the calibration autocollimator is basically parallel to the side of the bed, so that when the mirror 3 moves within the measurement stroke, the reflected cross beam spot is near the reference center.
[0022] 4) Push the detection bridge plate 4 step by step, connect end to end, measure and record the data within the effective stroke of the instrument.
[0023] 5) When the detection bridge 4 reaches the end point of the first section of the bed, record the data, that i...
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The invention relates to a method for detecting linearity of an overlong lathe bed. The method comprises the following steps: carrying out sectioned detection on a detection range of the overlong lathe bed, and recording the reading of an autocollimator after detecting the distance of a first section; forwards moving the autocollimator to the tail part of the distance of the first section, enabling a reflector not to move, regulating the position of the autocollimator, enabling the reading to be consistent with the reading before moving, and continuously detecting a second section; forwards pushing the autocollimator section by section by enabling an autocollimator main body and the reflector to be mutual references and on the premise that the references are enabled to be unified, and finally realizing detection of overall length. The method for detecting the linearity of the overlong lathe bed, disclosed by the invention, is high in accuracy and convenient to operate, cannot be restricted by detection length, can meet the detection demands on linearity, planeness and the like of all kinds of overlong lathe beds, platforms and the like, and is a key detection technology in heavy equipment manufacturing.
Description
technical field [0001] The invention relates to a step and method for detecting the straightness of an ultra-long bed, which can be applied to manufacturers of various heavy machine tools and heavy equipment, and is especially suitable for high-precision detection of parts such as ultra-heavy and super-large beds and guide rails. Background technique [0002] At present, the autocollimator and the level meter are commonly used for straightness detection, and the limit range of the measurement accuracy of the autocollimator is 30 meters. The reference of the spirit level is the horizontal plane, and its detection length is not limited, but since its reference can only be the horizontal plane, the detection of straightness in the vertical plane cannot be realized. [0003] However, with the rapid development of the heavy machine tool and heavy equipment industry, super-large and super-long machine tools emerge in an endless stream, and the length of many beds exceeds 50 meters...
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IPC IPC(8): G01B11/27
CPCG01B11/27
Inventor 桂林樊启波邹小堤张虎
Owner WUHAN HEAVY MACHINE TOOL GRP