Auxiliary detection equipment and detection method for holes
A detection method and auxiliary detection technology, applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of insufficient precision of hole data, insufficient accuracy of hole detection results, and low coincidence of ideal centerlines to achieve accuracy High, accurate results, and the effect of improving measurement accuracy
Active Publication Date: 2021-07-27
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0004] However, ultrasonic testing equipment is easily affected by the material and wall thickness of the mechanical structure itself during measurement, and the accuracy of the measured hole data is not high enough
In the end, it may happen that the coincidence degree between the actual centerline of the hole and the ideal centerline of the hole is not high, but the coincidence degree of the fitting centerline and the ideal centerline of the hole is high, and the detection result of the hole is not accurate enough
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[0048] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0049] figure 1 It is a schematic diagram of the use status of the auxiliary detection equipment provided by the embodiment of the present invention, figure 2 yes figure 1 The enlarged picture of A, such as figure 2 As shown, the auxiliary detection equipment includes a servo electric cylinder 1 , a servo motor 2 , a diameter measurement unit 3 and a first inertial measurement unit 4 .
[0050]The end of the telescopic rod 11 of the servo electric cylinder 1 is fixed with the servo motor 2 , and the axis of the telescopic rod 11 of the servo electric cylinder 1 coincides with the axis of the output shaft 21 of the servo motor 2 .
[0051] The output shaft 21 of the servo motor 2 is connected with a diameter measurement unit 3, the diameter ...
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The invention discloses auxiliary detection equipment and a detection method for holes, belonging to the field of detection equipment. The telescopic rod of the servo electric cylinder extends into the hole, and the servo motor at the end of the telescopic rod moves into the hole together with the diameter measuring unit, and the depth of the hole can be obtained through the servo electric cylinder. The servo motor controls the rotation of the output shaft, so that the diameter measuring unit can measure the diameter corresponding to the point on the circumference of the hole. The measurement accuracy of the servo electric cylinder and the servo motor is high, which can improve the measurement accuracy of the diameter of the hole. The centers of gravity of the servo motor, the diameter measurement unit and the first inertial measurement unit are all on the axis of the telescopic rod, so the telescopic rod does not move. will be offset. The first inertial measurement unit can measure the overall jump of the auxiliary detection equipment. According to the jump data of the first inertial measurement unit, the diameter obtained by the optical displacement sensor and the depth obtained by the servo electric cylinder are corrected. The results obtained by the auxiliary detection equipment are relatively Accurate, and the detection results of the holes that will eventually be obtained are also more accurate.
Description
technical field [0001] The invention relates to the field of detection equipment, in particular to an auxiliary detection device and a detection method for holes. Background technique [0002] It is common to see holes in some mechanical structures for assembly with other structures. The verticality of the holes in some mechanical structures needs to reach a certain standard to ensure good cooperation between the holes and other structures. Therefore, before the actual assembly of holes and other structures, some testing equipment will be used to measure whether the verticality of the holes is up to standard. [0003] At present, ultrasonic testing equipment is usually used to detect holes. Ultrasonic testing equipment measures data such as diameter and depth of multiple points on the hole, and fits the hole wall of the hole to obtain the fitted centerline of the fitted hole wall. Compared with the hole The fitting center line and the ideal center line of the hole, when th...
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IPC IPC(8): G01B11/26
CPCG01B11/26
Inventor 孟昭燃甘正林张聪杨勤王建国
Owner WUHAN MARINE MACHINERY PLANT