Small-diameter deep hole coaxiality detection method and device
A detection device and detection method technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of large processing errors, deep hole axis direction deviation, complex structure of detection devices, etc.
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Embodiment 1
[0038] Such as image 3 , Figure 4 Shown is one of the embodiments of the detection method of the present invention. In this embodiment, a small-diameter deep hole coaxiality detection method is provided at one end of the deep hole. A number of targets are set on the device; the detection device is pushed to different depth positions in the deep hole to stop, and the target coordinate acquisition equipment collects the coordinate value of the target at the stop position of the detection device, and obtains the coordinate value of the center of the deep hole at this place by measuring. The coordinate value of the center of the stop position is measured to obtain the change value of the deep hole axis in the radial direction, and the change value of the deep hole diameter is obtained by measuring the target coordinate value of the stop position at different depths.
[0039] The detection device is provided with 3 legs, and each leg is provided with 1 target, and the 3 targets ...
Embodiment 2
[0059] Such as Figure 8 , Figure 9 Shown is Embodiment 2 of the present invention. In this embodiment, the contact head 2-1-1 is in the shape of an arc plate with rounded corners; the material of the leg 2-1 is tungsten steel.
[0060] Figure 8 The middle contact head 2-1-1 is still in a point contact state with the wall of the deep hole.
[0061] Figure 9 The middle contact head 2-1-1 is in line contact with the wall of the deep hole. Designed as a line contact state can improve the stability of the detection device in deep holes. In terms of detection accuracy, the point contact state is the best.
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