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Double-hole-shape position tolerance measuring mechanism
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A technology of measuring mechanism and hole shape, applied in the field of double hole shape and position tolerance measuring mechanism, can solve the problems of low measurement accuracy and low service life of sensors.
Pending Publication Date: 2018-09-14
太仓迪阳汽车装备有限公司
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[0004] The present invention provides a double-hole shape and position tolerance measuring mechanism, which does not need to extend the pen sensor into the hole for measurement, so as to solve the problems of low measurement accuracy and low service life of the sensor in the prior art
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Embodiment 1
[0044] Such as Figures 2 to 9 As shown, the present invention provides a double-hole shape and position tolerance measuring mechanism, which is placed on one side of a component with double holes. In this embodiment, the double holes are axially parallel and opposite to each other, and between the two holes There is a measurement space, the measurement mechanism is opposite to the measurement space, and the double holes to be measured are respectively defined as the first hole 110 and the second hole 120.
[0045] For the convenience of description, the linear direction where the first guide rail 310 is located is defined as the X direction, the linear direction where the second guide rail 221 is located is defined as the Y direction, and the linear direction where the third guide rail 222 is located is defined as the Z direction, and XYZ three-dimensional coordinates are established Tie.
[0046] The measuring mechanism includes a pair of first guide rails 310 perpendicular...
Embodiment 2
[0070] The difference between this embodiment and Embodiment 1 is that please refer to Figure 13 , in a component with double holes, the axes of the two holes are parallel to each other but the holes are arranged along the radial direction of the hole. At this time, only one test probe 253 is needed to move from the first hole 110 to the second hole 120 to measure During the moving process, the displacement of the arm 250 in the Z direction, the displacement of the moving plate 220 in the Y direction, and the displacement of the fixed frame 210 in the X direction are tested, so as to calculate the shape tolerance of the double holes.
Embodiment 3
[0072] The difference between this embodiment and Embodiment 1 is that please refer to Figure 14 , in a part with double holes, the axes of the double holes are perpendicular to each other. At this time, the structure of the two test probes 253 on the test arm 250 is: one test probe 253 is arranged on the side of the test arm 250, and the other test probe 253 is arranged on the side of the test arm 250. At the end of the test arm 250, use the test probe 253 whose axial direction is parallel to the first hole 110 to enter the first hole 110 for positioning, then move, use the test probe whose axial direction is parallel to the second hole 120 to enter the second hole 120 for positioning, and measure During the moving process, the displacement of the arm 250 in the Z direction, the displacement of the moving plate 220 in the Y direction, and the displacement of the fixed frame 210 in the X direction are tested, so as to calculate the shape tolerance of the double holes.
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Abstract
The invention provides a double-hole-shape position tolerance measuring mechanism. A fixed frame moves on a first guide rail, a second guide rail perpendicular to the first guide rail and a moving plate are fixed on the side surface of a fixing frame facing the part with double holes. A test arm slides on a third guide rail on the moving plate, and one end of the test arm is provided with at leasttwo test probes. A first distance measuring sensor on the test arm measures the displacement of the test arm on the third guide rail; a second distance measuring sensor on the moving plate measures the displacement of the moving plate on the second guide rail; and a third distance measuring sensor of the fixing frame measures the displacement of the measuring device on the first guide rail. The measuring device moves first, so that one test probe extends into a hole, and then the measuring device moves towards the other hole until the other test probe extends into the other hole. The displacement tolerance of the two holes are calculated according to the displacement data of the first distance measuring sensor, the second distance measuring sensor and the third distance measuring sensor,and the manual interference factors and human errors are reduced.
Description
technical field [0001] The invention relates to the field of automatic detection, in particular to a double hole form and position tolerance measuring mechanism. Background technique [0002] Automatic detection is carried out and completed automatically without any or very little manual intervention in the process of measurement and inspection. The realization of automatic detection can improve the level and degree of automation, reduce human interference factors and human errors, and improve the reliability and operating efficiency of the production process or equipment. [0003] Pen sensors are widely used in aerospace, machinery, plastics, chemical industry, scientific research institutions and other industries in the national economy to measure high-tech products such as elongation, vibration, object thickness, and expansion. Pen-type displacement sensors have excellent performance and are suitable for high-precision, high-repeatability measurements in quality control ...
Claims
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Application Information
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