CN108917657A - A kind of laser multi-diameter shaft testing apparatus for verticality - Google Patents

A kind of laser multi-diameter shaft testing apparatus for verticality Download PDF

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Publication number
CN108917657A
CN108917657A CN201811121737.3A CN201811121737A CN108917657A CN 108917657 A CN108917657 A CN 108917657A CN 201811121737 A CN201811121737 A CN 201811121737A CN 108917657 A CN108917657 A CN 108917657A
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CN
China
Prior art keywords
diameter shaft
platform
testing apparatus
basal plane
sensor
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Pending
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CN201811121737.3A
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Chinese (zh)
Inventor
樊国锋
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Changzhou Liteng Machinery Co Ltd
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Changzhou Liteng Machinery Co Ltd
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Application filed by Changzhou Liteng Machinery Co Ltd filed Critical Changzhou Liteng Machinery Co Ltd
Priority to CN201811121737.3A priority Critical patent/CN108917657A/en
Publication of CN108917657A publication Critical patent/CN108917657A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/26Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

A kind of laser multi-diameter shaft testing apparatus for verticality, including detection platform, the detection platform is equipped with testing agency, the testing agency includes positioning device, basal plane rotary components, mounting plate, laser displacement sensor, servo straight line mould group, linear grating sensor and host computer processing display device, the mounting plate is fixed in the detection platform, and the top of the mounting plate is arranged in by supporting element for the servo straight line mould group and the linear grating sensor.Its is simple and reasonable, carries out quantitative detection automatically by rotary scanning, later by grating number of pulses corresponding to collected inner hole bus upper and lower side, multiplied by length representated by every number of pulses, obtains the angle Up Highway UHW gradient size.The corresponding bus gradient of circumferential distance 180 degree is subjected to average superposition, and finds out the maximum value of the entire circumferential centerline hole error of perpendicularity, the testing result as the multi-diameter shaft error of perpendicularity.

Description

A kind of laser multi-diameter shaft testing apparatus for verticality
Technical field
The present invention relates to work pieces process manufacturing field more particularly to a kind of laser multi-diameter shaft testing apparatus for verticality.
Background technique
In processing manufacturing industry, processing for workpiece, the process either processed, still quality after processing is completed and Performance requires to undergo a large amount of detection work.It is main using by hand at present for the measurement of the error of perpendicularity size of workpiece The original method of detection, but can not achieve the automation of workpieces processing detection process in the production line, detection efficiency is very low.
Therefore, the above problem should be paid attention to and be solved the problems, such as in the detection course of work.
Summary of the invention
Point in view of the above problems provides a kind of sharp it is an object of the invention to overcome deficiency in the prior art Light multi-diameter shaft testing apparatus for verticality.
What the purpose of the present invention was realized by following technical solution:A kind of laser multi-diameter shaft measuring for verticality dress It sets, including detection platform, the detection platform is equipped with testing agency, and the testing agency includes positioning device, basal plane rotation Component, mounting plate, laser displacement sensor, servo straight line mould group, linear grating sensor and host computer handle display device, institute It states mounting plate to be fixed in the detection platform, the servo straight line mould group and the linear grating sensor pass through support The top of the mounting plate is arranged in part.
A further improvement of the present invention is that:The detection platform is equipped with locating platform, and the positioning device setting exists On the locating platform.
A further improvement of the present invention is that:The linear grating sensor further includes that grating moves ruler, the servo straight line Mould group includes push rod and push-rod electric machine, and the grating moves ruler and is connected with the movable end of the push rod, the laser displacement sensor The grating is arranged in move on the panel of ruler.
A further improvement of the present invention is that:The positioning device includes two pieces of opposite V-type locating pieces, locating clips of left and right Tight cylinder and circumferentially positioned sensor, one of V-type locating piece connect the positioning clamping cylinder.
A further improvement of the present invention is that:The basal plane rotary components include motor, basal plane rotating platform and motor branch Support, the basal plane rotating platform are arranged on the locating platform between corresponding two V-type locating pieces, and the motor is logical It crosses the motor supports to be arranged below the detection platform, the motor shaft ends of the motor and the basal plane rotating platform It is connected.The motor is servo step motor.
A further improvement of the present invention is that:The circumferentially positioned sensor is mounted on the detection platform and corresponds to the base The fixation circumferential position of face rotating platform, basal plane rotating platform edge are equipped with the magnet for detecting positioning zero point.
A further improvement of the present invention is that:Host computer processing display device includes host computer and connection, The laser displacement sensor and the linear grating sensor will test data by the connection and reach the upper meter Calculation machine.
A further improvement of the present invention is that:The locating platform is groove structure.
The present invention provides a kind of laser multi-diameter shaft testing apparatus for verticality, using workpiece for measurement ladder bottom surface as benchmark face, needs The case where detecting the error of perpendicularity of multi-diameter shaft through hole center line and datum level is that workpiece for measurement is placed in basal plane rotation first Turn on platform, ruler is moved using laser displacement sensor and grating and is moved left and right, the bore area of workpiece for measurement is moved past, passes through straight line Grating sensor detects inclined degree of the bore area in the circumferential direction angle(The verticality of the bus), then basal plane rotates Platform repeats the above detection after rotating a certain angle again, until being 360 degree within rotation detection one week, the angle that detects every time Host computer is uploaded to bus verticality to save.Centerline hole is to the vertical of workpiece bottom datum level to be measured in order to obtain Degree, it is necessary to the corresponding bus gradient of circumferential distance 180 degree is subjected to average superposition and obtain the opposing busbars center line With the error of perpendicularity of datum level, and the maximum value of the entire circumferential centerline hole error of perpendicularity is found out, hung down as the multi-diameter shaft The testing result of straight degree error.In order to which outer inclined-plane bus but also the outer inclined-plane bus of detection can be detected, laser detection is projected into line Certain angle is biased, but the horizontal distance on inclined-plane of passing by is constant, does not influence bus gradient size detection.Specifically include following six A step:
1. firstly, workpiece for measurement is placed among two positioning V-shaped blocks(Gap is freely rotated)Basal plane rotating platform on, and So that grating moves ruler and laser displacement sensor is in the mechanical zero position of horizontal direction push-rod electric machine, motor drives basal plane rotation Turning platform and workpiece for measurement rotates to circumferential dead-center position, circumferential dead-center position detects that the position of magnet obtains by Hall, It is ready for measuring for verticality;
2. push rod is stretched out in push-rod electric machine starting, drives the laser displacement sensor of push rod movable end and grating to move ruler and is moved to the left, The multi-diameter shaft upper surface, inner hole bus upper end, inner hole bus lower end, basal plane rotating platform of workpiece for measurement are successively moved past, and will be moved As soon as crossing place by a grating pulse is often measured, the sampling frequency of a size is acquired, the size measured and the bus is circumferential Angle value is uploaded to host computer processing display device, while measuring size during being also moved to the left and grating output pulse Number respective value is uploaded to host computer processing display device, and for host computer processing display apparatus processes and display, last push rod is again Grating is driven to move ruler and laser displacement sensor retraction mechanical zero position;
3. host computer carries out analytical judgment position by the data that laser displacement sensor detects, from upper plane to oblique The variation in face, inclined-plane to basal plane rotating platform measurement numerical value judges the position of the beginning and end of inward hole slope bus, by inner hole It is oblique to obtain the angle Up Highway UHW multiplied by length representated by every number of pulses for grating number of pulses corresponding to bus upper and lower side Spend size;
4. starting motor, so that basal plane rotating platform drives the mobile certain angle of workpiece for measurement(Such as 5 degree), and repeat 2,3 steps Suddenly, until 360 degree of detections in one week are completed;
5. the corresponding bus gradient of circumferential distance 180 degree is carried out average superposition(It is such as inclined outwardly and is positive, slopes inwardly It is negative), obtain the error of perpendicularity of the opposing busbars center line and datum level, and find out entire circumferential centerline hole verticality and miss The maximum value of difference, the testing result as the multi-diameter shaft error of perpendicularity;
6. after being measured, allowing the playback of servo straight line mould group to mechanical zero, positioning clamping cylinder starting and drive the V being attached thereto Type locating piece is mobile, then takes the workpiece detected away, and host computer handles display apparatus processes and storage detection information.All rulers Very little detection starts to require to demarcate all the sensors.
The present invention is using laser displacement sensor as measuring tool, in order to realize multi-diameter shaft datum level and multi-diameter shaft inner hole The Precision measurement of the error of perpendicularity between center line, using linear servo mould group and linear grating sensor measure counting, Basal plane rotary components and alignment sensor rotational positioning carry out the comprehensive detection of bore area, while measurement numeric feedback being given Host computer is programmed conversion, realizes the functions such as automatic measurement, error calculation, display measurement result, compared with artificial detection not It is only high-efficient, decrease the error source of manual operation.Its is simple and reasonable, carries out quantitative inspection automatically by rotary scanning It surveys, later by grating number of pulses corresponding to collected inner hole bus upper and lower side, multiplied by length representated by every number of pulses Degree, obtains the angle Up Highway UHW gradient size.The corresponding bus gradient of circumferential distance 180 degree is subjected to average superposition, And find out the maximum value of the entire circumferential centerline hole error of perpendicularity, the testing result as the multi-diameter shaft error of perpendicularity.It adopts It detects not only the automation that processing part detection process in the production line may be implemented automatically with laser, but also is improving part While detection efficiency, the accuracy of measurement is improved.
Detailed description of the invention
Fig. 1 show schematic structural view of the invention;
Fig. 2 is the operation schematic diagram that host computer handles display device in the present invention;
Wherein, 1- detection platform, 2- locating platform, 3- mounting plate, 4- laser displacement sensor, 5- linear grating sensor, 6- V-type locating piece, 7- position clamping cylinder, the circumferentially positioned sensor of 8-, 9- motor, 10- basal plane rotating platform, 11- motor support Part, 12- workpiece for measurement, 13- supporting element, 14- push rod, 15- push-rod electric machine, 16- grating move ruler, 17- magnet, the upper calculating of 18- Machine, 19- connection.
Specific embodiment
Below in conjunction with attached drawing by embodiment come the present invention is described in detail.
Such as Fig. 1, the present embodiment provides a kind of laser multi-diameter shaft testing apparatus for verticality, including detection platform 1, the detections Platform 1 is equipped with testing agency and locating platform 2, and the locating platform 2 is groove structure.The testing agency includes positioning dress It sets, basal plane rotary components, mounting plate 3, laser displacement sensor 4, servo straight line mould group, linear grating sensor 5 and host computer Display device is handled, the positioning device is arranged on the locating platform 2, and the positioning device includes opposite two pieces in left and right V-type locating piece 6, positioning clamping cylinder 7 and circumferentially positioned sensor 8, one of V-type locating piece 6 connect the positioning Clamping cylinder, 7, it can also be attached, be not construed as limiting by connectors such as screw nuts by being welded and fixed between the two.
The basal plane rotary components include motor 9, basal plane rotating platform 10 and motor supports 11, the basal plane rotary flat Platform 10 is arranged on the locating platform 2 between corresponding two V-type locating pieces 6, and workpiece for measurement 12 is placed in basal plane rotation 10 top of platform, the motor 8 are arranged below the detection platform 1 by the motor support frame 6, the electricity of the motor 9 Arbor end is connected with the basal plane rotating platform 10, which is servo step motor.
The mounting plate 4 is fixed in the detection platform 1, and the servo straight line mould group and the linear grating pass The top of the mounting plate 4 is arranged in by supporting element 13 for sensor 5.The servo straight line mould group includes push rod 14 and push-rod electric machine 15, the linear grating sensor 12 further includes that grating moves ruler 16, and the grating moves the movable end phase of ruler 16 and the push rod 14 Even, the laser displacement sensor 4 is arranged in the grating and moves on the panel of ruler 16.The circumferentially positioned sensor 7 is mounted on The fixation circumferential position of the corresponding basal plane rotating platform 10 of the detection platform 1,10 edge of the basal plane rotating platform installation There is the magnet 17 for detecting positioning zero point, the magnet 17 is used as an object of reference, looks for convenient for the circumferentially positioned sensor 8 To positioning zero point,
Fig. 2, host computer processing display device include host computer 18 and connection 19, the laser displacement sensor and The data that linear grating sensor will test will test data by the connection 19 and reach the host computer 18.
The present embodiment provides a kind of laser multi-diameter shaft testing apparatus for verticality, on the basis of 12 ladder bottom surface of workpiece for measurement Face, the case where needing to detect the error of perpendicularity of multi-diameter shaft through hole center line and datum level, be to place workpiece for measurement 12 first In on basal plane rotating platform 10, ruler 16 is moved using laser displacement sensor 4 and grating and is moved left and right, the interior of workpiece for measurement 12 is moved past Hole surface detects inclined degree of the bore area in the circumferential direction angle by linear grating sensor 4(The bus it is vertical Degree), the above detection is repeated after then basal plane rotating platform 10 rotates a certain angle again, until rotation detects one week i.e. 360 degree Until, the angle and bus verticality detected every time uploads to the preservation of host computer 18.Centerline hole is treated in order to obtain Survey the verticality of 12 bottom surface datum level of workpiece, it is necessary to which the corresponding bus gradient of circumferential distance 180 degree is subjected to average superposition Operation obtains the error of perpendicularity of the opposing busbars center line and datum level, and finds out the entire circumferential centerline hole error of perpendicularity Maximum value, the testing result as the multi-diameter shaft error of perpendicularity.It is outer oblique in order to which outer inclined-plane bus but also detection can be detected Laser detection injection line is biased certain angle by face bus, but the horizontal distance on inclined-plane of passing by is constant, does not influence bus gradient Size detection.Specifically include following six step:
1. firstly, workpiece for measurement 12 is placed among two positioning V-shaped blocks 6(Gap is freely rotated)Basal plane rotating platform 10 On, and make the mechanical zero position that grating moves ruler 16 and laser displacement sensor 4 is in horizontal direction push-rod electric machine 15, motor 9 drive basal plane rotating platforms 10 and workpiece for measurement 12 go to circumferential dead-center position, and circumferential dead-center position detects magnetic by Hall The position of iron 17 obtains, is ready for measuring for verticality;
2. push rod 14 is stretched out in the starting of push-rod electric machine 15, the laser displacement sensor 4 of 14 movable end of push rod and grating is driven to move ruler 16 It is moved to the left, successively moves past the multi-diameter shaft upper surface, inner hole bus upper end, inner hole bus lower end, basal plane rotation of workpiece for measurement 12 Platform 10, as soon as and place will be moved past by often measuring a grating pulse, the sampling frequency of one size of acquisition, the size that will be measured Be uploaded to host computer processing display device with the bus circumferential direction angle value, at the same during being also moved to the left measure size with Grating exports umber of pulse respective value and is uploaded to host computer processing display device, for host computer processing display apparatus processes and shows Show, last push rod 14 drives grating to move ruler 16 and the retraction mechanical zero position of laser displacement sensor 4 again;
3. the data that host computer 18 is detected by laser displacement sensor 4 carry out analytical judgment position, from upper plane to The variation on inclined-plane, inclined-plane to basal plane rotating platform measurement numerical value judges the position of the beginning and end of inward hole slope bus, will be interior Grating number of pulses corresponding to the bus upper and lower side of hole obtains the angle Up Highway UHW multiplied by length representated by every number of pulses Gradient size;
4. starting motor 9, so that basal plane rotating platform 10 drives workpiece for measurement 12 5 degree mobile, and 2,3 steps are repeated, until 360 Detection in one week is spent to complete;
5. the corresponding bus gradient of circumferential distance 180 degree is carried out average superposition(It is such as inclined outwardly and is positive, slopes inwardly It is negative), obtain the error of perpendicularity of the opposing busbars center line and datum level, and find out entire circumferential centerline hole verticality and miss The maximum value of difference, the testing result as the multi-diameter shaft error of perpendicularity;
6. after being measured, allowing the playback of servo straight line mould group to mechanical zero, position what the starting drive of clamping cylinder 7 was attached thereto V-type locating piece 6 is mobile, then takes the workpiece 12 detected away, and host computer handles display apparatus processes and storage detection information.Institute There is size detection, starts to require to demarcate all the sensors.
The beneficial effect of the present embodiment:The present embodiment is using laser displacement sensor 4 as measuring tool, in order to realize rank The Precision measurement of the error of perpendicularity between terraced axis datum level and multi-diameter shaft inner hole centreline, using servo straight line mould group and line light Gate sensor 5 measures 8 rotational positioning of counting, basal plane rotary components and circumferentially positioned sensor, carries out bore area side entirely Position detection, while measurement numeric feedback is programmed conversion to host computer processing display device, realize automatic measurement, error meter It calculates, the display functions such as measurement result, it is not only high-efficient compared with artificial detection, decrease the error source of manual operation.Its It is simple and reasonable, quantitative detection is carried out by rotary scanning automatically, it later will be corresponding to collected inner hole bus upper and lower side Grating number of pulses obtain the angle Up Highway UHW gradient size multiplied by length representated by every number of pulses.By circumferential distance The corresponding bus gradient of 180 degree carries out average superposition, and finds out the maximum of the entire circumferential centerline hole error of perpendicularity Value, the testing result as the multi-diameter shaft error of perpendicularity.
The above-mentioned implementation enumerated is only to illustration of the present invention, is not restriction made for the present invention.The present invention is also It can be implemented using other way, herein not redundant one by one.All technical solutions formed using equivalent replacement or transformation, Belong to the present invention claims protection scope.

Claims (8)

1. a kind of laser multi-diameter shaft testing apparatus for verticality, it is characterised in that:Including detection platform, the detection platform is equipped with Testing agency, the testing agency include positioning device, basal plane rotary components, mounting plate, laser displacement sensor, servo straight line Mould group, linear grating sensor and host computer handle display device, and the mounting plate is fixed in the detection platform, institute It states servo straight line mould group and the top of the mounting plate is arranged in by supporting element for the linear grating sensor.
2. a kind of laser multi-diameter shaft testing apparatus for verticality according to claim 1, it is characterised in that:The detection platform It is equipped with locating platform, the positioning device is arranged on the locating platform.
3. a kind of laser multi-diameter shaft testing apparatus for verticality according to claim 1, it is characterised in that:The linear grating Sensor further includes that grating moves ruler, and the servo straight line mould group includes push rod and push-rod electric machine, and the grating moves ruler and described pushes away The movable end of bar is connected, and the laser displacement sensor is arranged in the grating and moves on the panel of ruler.
4. a kind of laser multi-diameter shaft testing apparatus for verticality according to claim 1, it is characterised in that:The positioning device Including two pieces of opposite V-type locating pieces of left and right, positioning clamping cylinder and circumferentially positioned sensor, one of V-type positioning Block connects the positioning clamping cylinder.
5. a kind of laser multi-diameter shaft testing apparatus for verticality according to claim 1, it is characterised in that:The basal plane rotation Component includes motor, basal plane rotating platform and motor supports, and the basal plane rotating platform setting is right on the locating platform It answers between two V-type locating pieces, the motor is arranged below the detection platform by the motor supports, described The motor shaft ends of motor are connected with the basal plane rotating platform.
6. a kind of laser multi-diameter shaft testing apparatus for verticality according to claim 1, it is characterised in that:It is described circumferentially positioned Sensor is mounted on the fixation circumferential position that the detection platform corresponds to the rotating platform, basal plane rotating platform edge peace Equipped with the magnet for detecting positioning zero point.
7. a kind of laser multi-diameter shaft testing apparatus for verticality according to claim 1, it is characterised in that:At the host computer Managing display device includes host computer and connection, and the laser displacement sensor and the linear grating sensor pass through institute It states connection and will test data and reach the host computer.
8. a kind of laser multi-diameter shaft testing apparatus for verticality according to claim 1, it is characterised in that:The locating platform For groove structure.
CN201811121737.3A 2018-09-26 2018-09-26 A kind of laser multi-diameter shaft testing apparatus for verticality Pending CN108917657A (en)

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CN201811121737.3A CN108917657A (en) 2018-09-26 2018-09-26 A kind of laser multi-diameter shaft testing apparatus for verticality

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CN114719786B (en) * 2022-04-21 2023-06-20 江西凯利德科技有限公司 Device and method for detecting perpendicularity of cylinder workpiece

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