Screw pitch automatic detection device
An automatic detection device, screw technology, applied in the direction of measuring devices, instruments, etc., can solve problems such as the inability to accurately measure the pitch, the axial movement of screws and nuts, etc.
Inactive Publication Date: 2021-06-29
DONGGUAN QINZHI IND DESIGN CO LTD
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Problems solved by technology
[0002] Thread connection is an important connection method in the mechanical field. After the processing is completed, it is necessary to detect whether the pitch of the screw is qualified. The existing detection equipment usually uses the method of screwing the screw into the nut for detection, but this can only be roughly detected. There may be slight axial movement between the screw and the nut, and the pitch cannot be accurately measured
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[0018] Examples, see e.g. Figure 1 to Figure 3 As shown, a screw pitch automatic detection device includes a detection base 1 fixed on the frame, a screw clamping and rotating mechanism 4 is arranged above the detection base 1, and an upper opening is formed on the detection base 1 The threaded hole 11, the bottom of the threaded hole 11 is provided with a gap elimination mechanism 2 and a displacement sensor 3, the displacement sensor 3 is fixedly connected with the detection base 1, and the measuring rod of the displacement sensor 3 extends into the threaded hole 11;
[0019] The screw clamping and rotating mechanism 4 includes a turntable 41 that is coaxial with the threaded hole 11 and is hinged on the detection base 1. The middle part of the turntable 41 is formed with a step through hole 411 with a large top and a small bottom. The stepped through hole 411 A pair of radially movable clamping blocks 42 are provided on the inner wall of the upper end hole;
[0020] A sle...
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The invention discloses a screw pitch automatic detection device which comprises a detection base fixed to a rack, a screw clamping and rotating mechanism is arranged above the detection base, a threaded hole is formed in the detection base, and a gap eliminating mechanism and a displacement sensor are arranged at the bottom of the threaded hole. The screw clamping and rotating mechanism comprises a turntable which is hinged to the detection base and is coaxially arranged with the threaded hole, a stepped through hole with a large upper part and a small lower part is formed in the middle of the turntable, and a pair of clamping blocks capable of moving in the radial direction is arranged on the inner wall of an upper end hole of the stepped through hole. A sleeve is arranged right above the stepped through hole, a magnet is fixed in the sleeve, and the sleeve is provided with a driving mechanism for driving the sleeve to lift and rotate. The displacement sensor is electrically connected with a touch control display screen, and the touch control display screen controls the screw clamping and rotating mechanism and the driving mechanism.
Description
technical field [0001] The invention relates to the technical field of screw production, in particular to a screw pitch automatic detection device. Background technique [0002] Thread connection is an important connection method in the mechanical field. After the processing is completed, it is necessary to detect whether the pitch of the screw is qualified. The existing detection equipment usually uses the method of screwing the screw into the nut for detection, but this can only be roughly detected. There may be slight axial movement between the screw and the nut, and the pitch cannot be accurately measured. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide an automatic screw pitch detection device, which can automatically measure the screw pitch with accurate measurement, and can effectively improve the measurement efficiency. [0004] The scheme that the present invention solves descri...
Claims
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IPC IPC(8): G01B21/16
CPCG01B21/16
Inventor 陈文钦
Owner DONGGUAN QINZHI IND DESIGN CO LTD