Device and method for detecting hole position distance on curved surface
A technology of arc-shaped surface and detection device, which is applied in the direction of mechanical gap measurement, etc., can solve the problems of large error, expensive three-coordinate measuring instrument, and inability to determine the center position of the hole.
Active Publication Date: 2017-06-30
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0004] When using a vernier caliper to measure, since the centerlines and apexes of the two holes are not in the same plane, the center position of the hole cannot be determined during measurement. At the same time, because the measurement path is within the spatial range, the measurement error is very large ( More than 1mm), unable to meet the dimensional tolerance requirements
[0005] In order to improve the measurement accuracy, a three-coordinate measuring instrument is used for measurement later, and the dimensional accuracy can be well guaranteed, but the three-coordinate measuring instrument is expensive, the measurement cost is high, and the measurement time is long, and the measurement efficiency cannot be guaranteed when the parts are mass-produced
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[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0029] see Figure 3 to Figure 8 As shown, according to the embodiment of the present invention, the detection device for the hole distance on the curved surface includes a through gauge 10 and a stop gauge 20 .
[0030] The pass gauge 10 includes a first positioning part 11 and a first detection part 12. The first positioning part 11 locates the position of the pass gauge 10 on the part to be inspected, so that the pass gauge 10 is fixed on the part to be inspected. The relative displacement occurs, which is convenient for the first detection part 12 to detect the part to be detected. The first detection part 12 cooperates with the first positioning part 11 and is used to detect whether the distance between the detection hole on the part to be detected and the reference point is with...
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The invention discloses a detection device and a detection method for hole position distance on an arc-shaped curved surface. The detection device for the hole position distance on the arc-shaped curved surface includes: a pass gauge (10), the pass gauge (10) includes a first positioning part (11) and a first detection part (12), and the first positioning part (11) positions the pass The position of the gauge (10) on the part to be detected, the first detection part (12) detects whether the distance between the detection hole on the part to be detected and the reference point is within the maximum size; the stop gauge (20), the stop gauge (20 ) includes a second positioning part (21) and a second detection part (22), the second positioning part (21) locates the position of the stop gauge (20) on the part to be detected, and the second detection part (22) detects the part to be detected Whether the distance between the detection hole and the reference point is outside the minimum size. According to the detection device of the present invention, the detection cost is low and the detection efficiency is high.
Description
technical field [0001] The invention relates to the technical field of hole position detection, in particular to a detection device and a detection method for the hole position distance on an arc-shaped curved surface. Background technique [0002] For parts with holes, when testing whether the parts are qualified, it is necessary to measure the side projection distance from the center of the hole on the mounting plate to the reference point. [0003] Such as figure 1 and figure 2 As shown, there are two holes 2' on the mounting plate, and the drawing of the mounting plate requires that the side distance between the two holes 2' and the apex 3' of the mounting plate 1' is 105.3±0.2, and the dimensional accuracy is high, that is, the mounting plate The side projected distance of two holes 2' to apex 3' on 1' has a maximum size of 105.5 and a minimum size of 105.1, and the actual measured size of the two holes 2' to apex 3' is between the maximum and minimum dimensions of b...
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IPC IPC(8): G01B5/14
Inventor 胡映明丁惠文赵前进孟万云鲁国强于冠超王芳张惠东
Owner GREE ELECTRIC APPLIANCES INC