Large-diameter pipe three-layer stepped hole coaxiality intelligent detection device
A technology of intelligent detection and stepped holes, which is applied in the field of measuring instruments, can solve the problems of detection distortion, error between detection value and actual value, and irregular deformation directions of the two inner holes for positioning, etc., and achieve the effect of solving the problem of detection distortion
Inactive Publication Date: 2019-05-28
无锡日升量仪有限公司
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Problems solved by technology
[0002] The current existing detection method is to use two stepped holes as benchmarks to measure the coaxiality of the other hole. However, as a thin-walled pipe with a relatively large diameter, due to the large diameter, the roundness error of the inner diameter is relatively large. Moreover, the deformation directions of the two inner holes for positioning are irregular and random, which will inevitably cause the actual measurement of the two positioning holes to be completely in a state of fitting with the positioning part of the inspection tool in real time, resulting in a systematic error in measurement. There is an error in the actual value, resulting in detection distortion
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[0017] see figure 1 , the present invention provides the following technical solutions: an intelligent detection device for the coaxiality of three-layer stepped holes of large-diameter pipe fittings, including a device body 17, and also includes a clamping structure and a detection mechanism;
[0018] Clamping structure includes big end positioning slider 4, big end slider mounting plate 5, reinforcing rod 6, electromagnet 7, magnetic plate 8, cage bearing 9, sleeve 10, taper sleeve 11, small end positioning slider 12 And the small end slider mounting plate 13, wherein, the large end positioning slider 4 is installed between the two large end slider mounting plates 5, and the small end positioning slider 12 is installed between the two small end slider mounting plates 13 , the adjacent big-end slider mounting plate 5 and the small-end slider mounting plate 13 are connected with reinforcing rods 6, and the bottom end of the small-end slider mounting plate 13 is provided with a...
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The invention belongs to the technical field of measuring instruments, and particularly relates to a large-diameter pipe three-layer stepped hole coaxiality intelligent detection device. The device comprises a device body and further comprises a clamping structure and a detection mechanism. The clamping structure comprises a large-end positioning sliding block, large-end sliding block mounting plates, a reinforcing rod, an electromagnet, a magnetized plate, a retainer bearing, a sleeve, a taper sleeve, a small-end positioning sliding block and a small-end sliding block mounting plate, whereinthe large-end positioning sliding block is arranged between the two large-end sliding block mounting plates. After the device is powered on, a starting button is started, and the magnetized plate moves towards the electromagnet under the action of the electromagnetic force of the electromagnet to drive the taper sleeve to move; when the taper sleeve moves axially, the large-end positioning slidingblock and the small-end positioning sliding block are pushed to move outwards in the radial direction to abut against an inner hole of a workpiece; at the moment, a detection point is in complete contact with a positioning hole, and the contact is kept all the time under the action of magnetic force.
Description
technical field [0001] The invention belongs to the technical field of measuring instruments, and in particular relates to an intelligent detection device for the coaxiality of three-layer stepped holes of large-diameter pipe fittings. Background technique [0002] The current existing detection method is to use two stepped holes as a benchmark to measure the coaxiality of the other hole, but as a thin-walled pipe with a relatively large diameter, due to the large diameter, the roundness error of the inner diameter is large, Moreover, the deformation directions of the two inner holes for positioning are irregular and random, which will inevitably cause the actual measurement of the two positioning holes to be partially incompletely in a state of fitting with the positioning part of the inspection tool in real time, resulting in a systematic error in measurement. There is an error in the actual value, which causes the detection to be distorted. Contents of the invention ...
Claims
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IPC IPC(8): G01B11/27
Inventor 刘明
Owner 无锡日升量仪有限公司