Device for coaxially detecting coaxial errors of inner holes and outer circles
A technology of coaxiality and inner hole, which is applied in the direction of measuring devices, mechanical measuring devices, and mechanical devices, etc., can solve the problems of difficulty in ensuring correctness and accuracy, and low efficiency
Active Publication Date: 2012-06-13
CHENGDU AIRCRAFT INDUSTRY GROUP
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Problems solved by technology
The above detection methods require workers to continuously adjust the detection position during detection, which is inefficient and difficult to guarantee the correctness and accuracy of detection
Method used
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Embodiment Construction
[0009] exist figure 1 Among them, the device for coaxially detecting the coaxiality error of the inner hole and the outer circle includes a dial gauge 3 with a gauge frame 2 . The table frame 2 is the main structure of the verticality inspection tool for the special hole end to the hole axis. On the axial lower side of the watch frame 2, there is a long groove extending axially to the large end of the rear part, and a trapezoidal lever 6 extending from the bottom to both sides is movably connected in the long groove. Lever 6 is fixedly connected on the above-mentioned long groove side wall by cylindrical pin 7. The cylindrical pin 7 connected on the trapezoidal boss of the lever 6 is the turning fulcrum of the lever 6 . The head of the dial indicator passes through the vertical aperture of the vertical axis of the meter frame 2 on the large end step of the above-mentioned meter frame 2, and is vertically connected to the extended end of the above-mentioned trapezoidal lever ...
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The invention provides a device for coaxially detecting the coaxial errors of inner holes and outer circles, in particular to a device which has high detection efficiency and can accurately and rapidly detect the coaxiality of the inner holes and the outer circles of workpieces. In the invention, the lower side of the axial direction of a movement rest is provided with an elongated slot; a ladder-shaped lever (6) the lower base of which extends toward both sides is movably connected in the elongated slot; a cylindrical pin (7) connected on a ladder-shaped boss of the lever (6) is the rotatingfulcrum of the lever (6) and forms a mechanical lever dial indicator together with a dial indicator connected on the rear ladder-shaped sunken extension end of the lever (6); a locating shaft pin (1)sleeved with the detection workpieces is also fixedly connected above a sunken slotted hole of the front end of the lever (6). The detection tool has simple structure, convenient operation and strongpracticability, can be widely applied to detecting similar workpieces and can be standardized and universalized.
Description
technical field [0001] The invention relates to a detection device for measuring the coaxiality error of an inner hole and an outer circle. Background technique [0002] In the prior art, the measurement method for detecting the coaxiality between the inner hole and the outer circle of the drill bushing and the bushing is to use the three-jaw chuck of the machine tool to clamp one end of the drill bushing, first use the dial gauge to find the circle of the inner hole, and then turn the dial gauge Put the meter head on the outer circle of the drill bush and the bushing, rotate the main shaft of the machine tool, and take the maximum difference of the expressed value in thousand as the coaxiality error of the measured part. Another method uses a special fixture to align the axis of the hole and clamp the part, and then detect it on a three-coordinate inspection machine. The above detection method requires workers to constantly adjust the detection position during detection, w...
Claims
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IPC IPC(8): G01B5/252
Inventor 李滨刘跃文饶华
Owner CHENGDU AIRCRAFT INDUSTRY GROUP