CN108955617B - Skew detector - Google Patents

Skew detector Download PDF

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Publication number
CN108955617B
CN108955617B CN201810533335.8A CN201810533335A CN108955617B CN 108955617 B CN108955617 B CN 108955617B CN 201810533335 A CN201810533335 A CN 201810533335A CN 108955617 B CN108955617 B CN 108955617B
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direction guide
guide rail
displacement
support
slide block
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CN201810533335.8A
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CN108955617A (en
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张文儒
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Weifang University of Science and Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/22Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

The invention discloses a deflection detector, wherein a universal hinged probe is arranged below a support; a Y-direction guide rail is arranged on the support and sleeved below the XY displacement slide block, and the Y-direction guide rail moves along the XY displacement slide block in the Y direction; an X-direction guide rail is sleeved on the XY displacement slide block, and the support is linked with the XY displacement slide block to move in the X direction along the X-direction guide rail. The support is linked with the XY displacement slider to move in the X direction along the X-direction guide rail, the support moves in the Y direction along the XY displacement slider under the guide of the Y-direction guide rail, when the probe swings, the support is driven to generate displacement detection offset along the X, Y direction, and finally two-dimensional displacement and angle measurement data are obtained through the offset sensor and the angle sensor, so that the two-dimensional displacement and the angle measurement data can be directly measured on one detection device at one time.

Description

Skew detector
Technical Field
The invention relates to a measuring tool, in particular to a deflection angle measuring device for assembled workpieces on an automatic production line.
Background
The angle measurement is a component of technical measurement, and various angle measurement problems are encountered in the machining, assembly and installation of each part. With the development of production and scientific technology, the angle measurement of products and parts is more and more widely applied, and the requirement on precision is higher and higher. The existing general angle measuring device has lower precision, and a part of measuring devices applying high-density grating and laser interference have higher precision, but the structure is complex and the cost is higher, so the device is not suitable for the automatic sealing process of products on an automatic flow production line.
The angle measurement is generally performed by acquiring a rotation angle signal through a sensor, converting the rotation angle signal into a circuit parameter, and converting the circuit parameter into an electric signal through a conversion circuit to output the electric signal. With the development of microprocessors and integrated chips, the processing of output signals is becoming more and more perfect, and the functions are also becoming more and more powerful, and the output signals can be directly displayed, printed, recorded, stored or supplied to a control system to complete the functions of measurement or control. The angle sensor has wide application, relates to various industries, such as machining, aerospace, intelligent robots and the like, and plays an important place in the current industrial technology. In the mechanical industry, angular measurements are required everywhere. The measurement of the angle of the production operation such as the adjustment of the horizontal and vertical positions of various machine tool components, the inspection of the angle of each component in production, the inspection of various indexing errors, and the inspection of the angle of the cutting tool is not separated. Generally, a mechanical angle measuring device relying on circular division has low accuracy, but a mechanical angle measuring device which is generally regarded as not very high in accuracy has been newly developed after a multi-tooth division technique is introduced. The multi-tooth dividing plate similar to the structure of the gear end face clutch becomes an important part of the circular division. The single fluted disc with the originally larger indexing error can greatly improve the indexing precision through the average effect after the two same fluted discs are tightly meshed, and the high-precision circular indexing row and column can be jumped over at present. The multi-tooth dividing table using the multi-tooth dividing disc as the circular dividing device also has the advantages of simple structure, convenient use, low requirement on use environment and the like. And a smaller indexing interval can be obtained by a differential or subdivision device of more than two pairs of fluted discs with different meshing tooth numbers. The appearance of the multi-tooth indexing technology opens up a new way for improving the mechanical indexing precision. The mechanical angle measurement technology is relatively mature, and most of researches and applications of the angle measurement technology in recent years search breakthrough in the photoelectric technology. Particularly, with the development of modern computer technology, various angle sensors are produced. Generally, a potential angle sensor, a resistance strain angle sensor, a grating angle sensor, a magnetic grating angle sensor, an induction synchronizer, and a code wheel angle sensor are classified according to the working principle, and the obtained precision and resolution are not necessarily the same in view of different measurement methods and data processing methods of the same principle.
Disclosure of Invention
The invention aims to provide a deflection detector which has the advantages of high measurement precision, high efficiency and simple and reliable measurement.
In order to solve the technical problems, the invention adopts the technical scheme that: a skew detector comprising a support, a gimbaled articulating probe below the support; a Y-direction guide rail is arranged on the support and sleeved below the XY displacement slide block, and the Y-direction guide rail moves along the XY displacement slide block in the Y direction; an X-direction guide rail is sleeved on the XY displacement slide block, and the support is linked with the XY displacement slide block to move along the X-direction guide rail in the X direction; when the probe is oscillated, the drive carriage is displaced X, Y to detect the offset.
Furthermore, the bracket is provided with a circular ring, and a probe is arranged in the circular ring in a penetrating way; the middle part of the probe is provided with a universal joint, and the universal joint is universally hinged with the inner side surface of the circular ring.
Furthermore, an X-direction guide groove is formed in the XY displacement sliding block, and an X-direction guide rail is sleeved in the X-direction guide groove; and a Y-direction guide groove is formed below the XY displacement slide block and sleeved with a Y-direction guide rail.
Further, the support is connected with a reset mechanism in a linkage mode, and the reset mechanism enables the deflection detector to reset.
Further, an XY offset sensor is arranged beside the XY displacement slide block.
Further, the bracket is provided with an XY angle sensor.
By adopting the technical scheme, the support is provided with the XY displacement slide block, so that the support is linked with the XY displacement slide block to move in the X direction along the X-direction guide rail, and the support moves in the Y direction along the XY displacement slide block under the guide of the Y-direction guide rail, when the probe swings, the support is driven to generate displacement detection offset along the direction X, Y, and finally two-dimensional displacement and angle measurement data are obtained through the offset sensor and the angle sensor, so that the two-dimensional displacement and angle measurement data can be directly measured on one detection device at one time.
Drawings
Fig. 1 is a schematic diagram of a skew detector.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the skew detector is composed of a fixed base 1, an XY-displacement slider 2, an X-guide rail 3, a Y-guide rail 4, an X-offset sensor 5, a Y-offset sensor 6, an X-angle sensor 7, a Y-angle sensor 8, a probe 9, a reset mechanism 10, a ring 12, and a support 11.
An X-direction guide rail 3 is arranged below the fixed seat 1, and a Y-direction guide rail 4 is arranged above the bracket 11. An XY displacement slide block 2 is arranged between the fixed seat 1 and the bracket 11, an X-direction guide groove is formed in the upper surface of the XY displacement slide block 2, and a Y-direction guide groove is formed in the lower surface of the XY displacement slide block. The X-direction guide rail 3 is placed in the X-direction guide groove, and the Y-direction guide rail 4 is placed in the Y-direction guide groove. An X offset sensor 5 and a Y offset sensor 6 are arranged beside the XY displacement slide block. Two ends of the lower surface of the support 11 extend to form side plates 11.1, a circular ring 12 is connected between the two side plates 11.1, an X angle sensor 7 is installed on the outer side surface of the circular ring 12, and a Y angle sensor 8 is installed on the outer side surface of one side plate 11.1. The probe 9 is arranged in the center of the circular ring 12 in a penetrating mode, the universal joint 9.1 is sleeved in the middle of the probe 9, and the universal joint 9.1 is hinged to the inner side face of the circular ring 12. A resetting mechanism 10 is arranged in the middle of the lower surface of the bracket 11, and the upper part of the probe 9 is inserted into the resetting mechanism 10.
The working principle is as follows: when the probe is inserted into a workpiece to be measured, the bracket moves along the XY displacement slide block due to the deflection of the workpiece, the XY displacement sensor measures the displacement of the bracket in X, Y in two directions, meanwhile, the probe deflects along with the workpiece, the Y-angle sensor measures the deflection angle of the workpiece in the Y direction, the X-angle sensor measures the deflection angle in the X direction, and the sensors transmit the measured values (XY displacement and deflection angle) to the encoder and feed back the measured values to the PLC for processing. When the detection is completed, the probe is withdrawn from the workpiece and the reset mechanism resets the deflection detector.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims (2)

1. A skew detector comprising a support, characterized in that: a universal hinged probe below the support; a Y-direction guide rail is arranged on the support and sleeved below the XY displacement slide block, and the Y-direction guide rail moves along the XY displacement slide block in the Y direction; an X-direction guide rail is sleeved on the XY displacement slide block, and the support is linked with the XY displacement slide block to move along the X-direction guide rail in the X direction; when the probe swings, the driving support generates displacement detection offset along X, Y direction;
two ends of the bracket extend to form side plates, a circular ring is connected between the two side plates, and a probe is arranged in the circular ring in a penetrating manner; the middle part of the probe is provided with a universal joint, and the universal joint is in universal hinge joint with the inner side surface of the circular ring; an X-direction guide groove is formed in the XY displacement sliding block, and an X-direction guide rail is sleeved in the X-direction guide groove; a Y-direction guide groove is formed below the XY displacement sliding block, and a Y-direction guide rail is sleeved in the Y-direction guide groove;
an X offset sensor and a Y offset sensor are arranged beside the XY displacement slide block;
and an X angle sensor is arranged on the outer side surface of the circular ring, and a Y angle sensor is arranged on the outer side surface of one side plate.
2. The skew detector of claim 1, wherein: the support is connected with a reset mechanism in a linkage mode, and the reset mechanism enables the deflection detector to reset.
CN201810533335.8A 2018-05-29 2018-05-29 Skew detector Active CN108955617B (en)

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CN110645938B (en) * 2019-08-27 2021-10-26 韩小刚 Auxiliary device for detecting thickness of reinforcing steel bar protective layer for traffic engineering

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Address after: 262799 No.69 Jinguang East Street, Shouguang City, Weifang City, Shandong Province

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