Concentric positioning device for testing return stroke difference of angular displacement potentiometer
A concentric positioning and potentiometer technology, applied in the direction of using electrical devices, measuring devices, workpiece clamping devices, etc., can solve the problems of difficulty in ensuring the accuracy of test results, low measurement efficiency, and large test errors, and achieve accurate and reliable test results. , High test efficiency and convenient operation
Active Publication Date: 2021-11-26
CHENGDU HONGMING ELECTRONICS CO LTD
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Problems solved by technology
[0003] The traditional test method for the return distance of the rotating shaft of the angular displacement potentiometer generally uses an angle ruler to determine the relative position of the rotating shaft and the potentiometer housing (including the test point and the rotation angle), and then tests the return difference of the rotating shaft. The relative position of the housing has large positioning errors and large test errors, making it difficult to guarantee the accuracy of test results and low measurement efficiency
Method used
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[0029] The present invention will be further described below in conjunction with accompanying drawing:
[0030] Such as Figure 1-Figure 9 As shown, the concentric positioning device for testing the return stroke difference of the angular displacement potentiometer according to the present invention includes a base plate 5, a support 13, a turntable 7, a connecting rod 4 and a thimble 1, and the center position of the horizontal turntable 7 is provided with a vertical Rotating disk through hole 28, rotating disk 7 is positioned at the top of horizontal base plate 5 and can rotate freely around its central axis, bearing 13 is installed on the base plate 5 and passes through rotating disc through hole 28 from bottom to top, and the top of bearing 13 is provided with There is the mounting bracket (not marked in the figure) for installing the angular displacement potentiometer 12, the horizontal connecting rod 4 is installed on the turntable 7, the first end of the two ends of the...
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The invention discloses a concentric positioning device for testing the return stroke difference of an angular displacement potentiometer, and the device comprises a bottom plate, a support, a rotary disc, a connecting rod and an ejector pin; the rotary disc is provided with a rotary disc through hole, is positioned above the bottom plate and can freely rotate; the support is mounted on the bottom plate and penetrates through the rotary disc through hole, the upper part of the support is provided with a mounting bracket, and the connecting rod is mounted on the rotary disc; the first end of the connecting rod is provided with a positioning groove, the three ejector pins are installed on the bottom plate, one end of each ejector pin is provided with a positioning part which can be arranged in the positioning groove, and the section, close to the second end, of the connecting rod is provided with an open groove which is located below the top of the mounting bracket. The purpose of accurately controlling the rotating shaft of the angular displacement potentiometer to clockwise or anticlockwise rotate by a certain angle and then reversely rotate by the same angle is achieved, the purpose of calculating the return stroke difference of the angular displacement potentiometer is achieved, positioning is accurate, the testing result is accurate and reliable, operation is convenient, and testing efficiency is high.
Description
technical field [0001] The invention relates to a device for testing the return distance difference of an angular displacement potentiometer, in particular to a concentric positioning device for testing the return distance difference of the angular displacement potentiometer. Background technique [0002] The main function of the angular displacement potentiometer (or angular displacement sensor) is to convert the rotational displacement signal of the mechanism into an electrical signal and feed it back to the host computer system to function as a position feedback. Due to the influence of the precision of the parts of the angular displacement potentiometer and its assembly process, the rotating shaft will produce a certain return difference when it reciprocates clockwise / counterclockwise. In order to ensure that the angular displacement potentiometer can accurately feedback the position signal, it is required to The backstroke difference generated when the rotating shaft of...
Claims
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Login to View More IPC IPC(8): G01B7/30B25B11/00
CPCG01B7/30B25B11/00
Inventor 姚里李富强
Owner CHENGDU HONGMING ELECTRONICS CO LTD