Rotary mass centroid tester
A tester and rotary technology, applied in the field of rotary mass centroid testers, can solve the problems of low test repeatability, unable to meet the high-precision centroid measurement of small objects, and it is difficult for eccentric testers to accurately measure small objects. Good performance, improve accuracy and test accuracy, and solve the effect of structural deformation
Active Publication Date: 2020-05-26
南京乾利合科技有限责任公司
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AI Technical Summary
Problems solved by technology
Due to the limitations of the structure and method, the double-facade quality, center of mass, and eccentricity tester is difficult to be suitable for accurate measurement of small objects
[0007] To sum up, the existing tester cannot meet the high-precision centroid measurement of small objects, and the repeatability of the test is also low.
Method used
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Embodiment Construction
[0042] The present invention will be described in further detail below with reference to the accompanying drawings.
[0043] from figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7It can be seen from the above that a rotary mass center tester for testing the center of mass includes a control box, a standard sample rod, and a test bench. The control box includes a data acquisition instrument (V3-2 type), Advantech industrial computer and NJLGDX special software. The control box is connected to the test bench through a data transmission line. The standard sample rod is used to calibrate the test accuracy of the sensor 33 and the verification tester. The test bench includes a rotary bracket 31, a base 32, a sensor 33, a grating positioning mechanism 34, and a lifting mechanism 35. The slewing bracket 31 is composed of a slewing frame 311, a bracket 312, and a supporting foot 313. The slewing frame 311 and the supporting foot 313 are respectively arranged on ...
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The invention relates to a revolving type mass center tester, which comprises a control box, a standard sample rod and a test table. The test table comprises a revolving bracket, a base, a sensor, a grating positioning mechanism and a lifting mechanism. The revolving bracket is composed of a revolving frame, a bracket and supporting legs, wherein the revolving frame is composed of an upper revolving frame, a lower revolving frame, a bearing, a revolving shaft and a fixing nut. The bracket is composed of a supporting plate, a V-shaped sliding frame and a guide rail. The supporting legs are composed of rollers and a roller support. One end of the revolving bracket is fixedly connected with the sensor through a revolving rack, while the other end of the revolving bracket is connected with the sensor through supporting legs in the floating mode. According to the invention, by means of the revolving bracket, the sensor is fixed in position relative to the test reference, so that the system error caused by position change is eliminated. By adopting the structure of the revolving bracket, the structure internal force is eliminated. The stress principle and the stress condition of the sensor under the multi-sensor multi-point stress condition are met. Meanwhile, the requirement for the high-precision measurement of small-size objects is met, and the system test repeatability is improved.
Description
[0001] a technical field [0002] The invention relates to a tester for measuring the mass center of an object, in particular to a rotary mass center tester. [0003] Two background technology [0004] The existing mass center of mass tester is generally a bracket-type mass center of mass tester, which consists of a bracket, a lifting mechanism, a rack, etc. Realized by a lifting mechanism. The test method is: first place the object to be tested on the bracket, then drop the bracket together with the object to be tested on the three or four sensors on the test rack through the lifting mechanism, and place the three or four sensors on the test frame. The mass of the sensor is obtained by summing the force values of the sensor, the distance between the measured body and the measurement reference is obtained from the positioning ruler, the relative position between the sensor and the measured body is known, and the position of the center of mass is calculated by the moment bala...
Claims
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IPC IPC(8): G01D21/02G01M1/12
Inventor 孔丹群
Owner 南京乾利合科技有限责任公司