CN106225661B - Punching press bore dia device for fast detecting and its method on thin-wall part - Google Patents

Punching press bore dia device for fast detecting and its method on thin-wall part Download PDF

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Publication number
CN106225661B
CN106225661B CN201610535998.4A CN201610535998A CN106225661B CN 106225661 B CN106225661 B CN 106225661B CN 201610535998 A CN201610535998 A CN 201610535998A CN 106225661 B CN106225661 B CN 106225661B
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China
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measuring head
sliding bar
circular cone
thin
wall part
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CN106225661A (en
Inventor
韦庆玥
杨洋
史栩屹
任丽佳
李明
吴俊�
朱立昌
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University of Shanghai for Science and Technology
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University of Shanghai for 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
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic means
    • G01B7/12Measuring arrangements characterised by the use of electric or magnetic means for measuring diameters

Abstract

The present invention provides punching press bore dia device for fast detecting and its methods on a kind of thin-wall part, punching press bore dia device for fast detecting includes mechanical part etc. on thin-wall part, one side end face of upper end of sliding bar is respectively equipped with a LED liquid crystal display and a power switch, LED liquid crystal display is located at the lower section of power switch, the upper end rear end face of sliding bar is respectively equipped with an origin configuration switch and a zero-bit button, origin configuration switch is located at the top of zero-bit button, the lower end of sliding bar is equipped with a threaded boss, threaded boss is threadedly coupled with circular cone measuring head, blade main body is located at the outside of sliding bar, main grid is fixed on blade main body, secondary grid are fixed on sliding bar, the outside lower end of blade main body is set there are three support leg, the lower end of three support legs is threadedly coupled with a spherical angle respectively, when detection device is calibrated, Spherical angle is placed in calibration component plane.Detection efficiency of the present invention is high, and measurement accuracy is high, and Measurement reliability is high, applied widely.

Description

Punching press bore dia device for fast detecting and its method on thin-wall part
Technical field
The invention belongs to Technology of Precision Measurement fields, and in particular, to punching press bore dia quickly detects on a kind of thin-wall part Devices and methods therefor.
Background technique
At present in machinery manufacturing industry thin-wall part with being increasingly extensive, such as automobile body-in-white, interior exterior trim, 3C industry, The inspection of progress geometric dimension is all needed to the feature being stamped and formed out on thin-wall part.Inside caliper is usually used during atual detection Ruler, inside micrometer and digitized measurement machine detect the circular hole in thin-wall part, however due to thin-wall part punching press circular hole Hole wall is relatively thin, is not easy to find at its correct diameter in measurement process, need to be in circular hole week if application digitlization three-dimensional coordinates measurement Multiple measuring points are obtained in side plane and hole wall to determine that its perspective plane and circular hole information are calculated.These current measurement methods Apply seems more complicated on thin-wall part, and the correctness of measurement result is affected by artificial, measurement method.Meanwhile it is right In circular hole large number of on thin-wall workpiece, it is greatly reduced product testing and production efficiency.How to be examined with fast speed The bore dia surveyed on thin-wall part is current one of the key technology for improving detection efficiency.
Apparatus of the present invention solve the problems, such as positioning when circular hole measures on thin-wall part, obtain measuring point difficulty, substantially increase Inside diameter measurement speed, meanwhile, apparatus structure designs the measurement method for being also based on specification, can not only improve measuring speed, and energy Reach certain measurement accuracy.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide punching press bore dias on a kind of thin-wall part quickly to detect Devices and methods therefor, structure is simple, easy to use, alleviates the labor intensity of reviewer, improves detection efficiency, measurement Precision and Measurement reliability, while the disadvantages of hand-manipulated and digitized measurement is unsuitable is overcome, it can be used for sheet metal component, casting The measurement of Circularhole diameter on the thin-wall workpieces such as part, plastic part.
The present invention is to solve above-mentioned technical problem by following technical proposals: punching press bore dia is fast on a kind of thin-wall part Speed detector, which is characterized in that it includes mechanical part, digital display part, Sensor section, calibration component, and mechanical part includes Spherical angle, blade main body, sliding bar, circular cone measuring head, digital display part include LED liquid crystal display, power switch, origin setting Switch, zero-bit button, sensor portion are divided into capacitive grating displacement sensing comprising main grid and secondary grid, one side end face of upper end of sliding bar It is respectively equipped with a LED liquid crystal display and a power switch, LED liquid crystal display is located at the lower section of power switch, the upper end of sliding bar Rear end face is respectively equipped with an origin configuration switch and a zero-bit button, and origin configuration switch is located at the top of zero-bit button, The lower end of sliding bar is equipped with a threaded boss, and threaded boss is threadedly coupled with circular cone measuring head, circular cone measuring head The standard taper measuring head for being 90 ° for cone-apex angle, blade main body are located at the outside of sliding bar, and main grid is fixed on blade main body, secondary Grid are fixed on sliding bar, and the outside lower end of blade main body is set there are three support leg, the lower end of three support legs respectively with a ball Shape angle is threadedly coupled, and three spherical angle distributing positions are identical as digitlization contact type measurement mode, for establishing circle The projection plane direction of hole measurement, sliding bar part is vertical with the plane of spherical angle composition, spherical when detection device is calibrated Angle is placed in calibration component plane, and calibration component is the plate of one piece of standard circular hole for being equipped with multiple certain precision.
Preferably, the circular cone measuring head is full cone measuring head (detection small-diameter circular).
Preferably, the circular cone measuring head is frusto-conical shape measuring head (detection large-diameter circular).
Preferably, the size of the circular cone measuring head carries out customized and selection according to practical tested pore size.
The present invention also provides a kind of detection methods of punching press bore dia device for fast detecting on thin-wall part, which is characterized in that Itself the following steps are included:
Step 1: selecting spherical angle and circular cone measuring head, of different sizes according to surveyed thin-wall hole, selects be suitble to respectively The spherical angle and circular cone measuring head of measured hole size.Spherical angle is mounted in blade main body, the installation of circular cone measuring head Threaded boss in sliding bar bottom;
Step 2: calibration steps, standard circular hole with the plane of calibration component and thereon calibrate device, setting measurement Zero reference, i.e., subsequent measurement data starts to calculate with this position measurement initial position, and measures aperture device for fast detecting Preceding self precision calibration;
Step 3: measuring process holds detection device, three spheres of spherical angle is placed on tested circular Plane or curved surface on, so that the center of circular cone measuring head is in tested circular hole the center point substantially;Mobile sliding bar, measures circular cone Head protrudes into measured hole;Detection device is finely tuned, so that being read after the surface of circular cone measuring head is bonded with the boundary of tested circular hole Number;
Step 4: calculating step, and by the main grid and secondary grid two parts of capacitive displacement transducer, circular hole depth is goed deep into reading Degree calculates measured circle pore diameter size, is shown by LED liquid crystal display.
Compared with prior art, the present invention has following the utility model has the advantages that the configuration of the present invention is simple, easy to use, mitigates The labor intensity of reviewer, improves detection efficiency, measurement accuracy and Measurement reliability, at the same overcome manual operations and The disadvantages of digitized measurement is unsuitable.The measurement for the Circularhole diameter that can be used on the thin-wall workpieces such as sheet metal component, pouring piece, plastic part.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention, Objects and advantages will become more apparent upon:
Fig. 1 is overall structure figure of the invention.
Fig. 2 is the location diagram of sliding bar of the present invention and secondary grid.
Fig. 3 is the location diagram of blade main body and main grid of the present invention.
Fig. 4 is full cone measuring head structure chart of the present invention.
Fig. 5 is frusto-conical shape measuring head structure chart of the present invention.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention Protection scope.
As shown in Figures 1 to 5, punching press bore dia device for fast detecting includes mechanical part, digital display on thin-wall part of the present invention Partially, Sensor section, calibration component 9, mechanical part include spherical angle 1, blade main body 2, sliding bar 3, circular cone measuring head 8, digital display part includes LED(light emitting diode) liquid crystal display 4, power switch 5, origin configuration switch 6, zero-bit button 7, sensor Part is capacitive grating displacement sensing comprising main grid 11 and secondary grid 10, one side end face of upper end of sliding bar 3 is respectively equipped with a LED Liquid crystal display 4 and a power switch 5, LED liquid crystal display 4 are located at the lower section of power switch 5, the upper end rear end face difference of sliding bar 3 Equipped with an origin configuration switch 6 and a zero-bit button 7, origin configuration switch 6 is located at the top of zero-bit button 7, sliding bar 3 Lower end be equipped with a threaded boss 31, threaded boss 31 is threadedly coupled with circular cone measuring head 8, circular cone measuring head 8 The standard taper measuring head for being 90 ° for cone-apex angle, blade main body 2 are located at the outside of sliding bar 3, and main grid 11 is fixed on blade main body 2, secondary grid 10 are fixed on sliding bar 3, and the outside lower end of blade main body 2 sets that there are three support leg 21, the lower ends of three support legs 21 It is threadedly coupled respectively with a spherical angle 1, the distributing position and digitlization contact type measurement mode of three spherical angles 1 Identical, for establishing the projection plane direction of circular hole measurement, 3 part of sliding bar is vertical with the plane that spherical angle 1 forms, inspection Survey device calibration when, spherical angle 1 is placed in 9 plane of calibration component, calibration component 9 be one piece be equipped with it is multiple (such as diameter be 7mm and Diameter is 20mm) plate of the standard circular hole 91 of certain precision.
The circular cone measuring head 8 is full cone measuring head, and measurement diameter is suitble to be less than the circular hole of 15mm in this way.
The circular cone measuring head 8 is frusto-conical shape measuring head, is suitble to the circular hole that measurement diameter is 10-30mm in this way.
The size of the circular cone measuring head 8 carries out customized and selection according to practical tested pore size, can be improved in this way The accuracy of measurement.
Detection method includes the following steps for punching press bore dia device for fast detecting on thin-wall part of the present invention:
Step 1: selecting spherical angle 1 and circular cone measuring head 8, of different sizes according to surveyed thin-wall hole, selects respectively suitable Close the spherical angle 1 and circular cone measuring head 8 of measured hole size.
Spherical angle 1 is divided into two kinds of dimensions according to contact plane range: if tested circular hole has selected on curved surface On the contrary when full circle taper measuring head, spherical angle 1 selects small size, then select large scale specification spherical shape angle 1, guarantor The closer tested circular hole of card positioning plane;If tested circular hole is in the plane, the specification of spherical angle 1 can be selected arbitrarily.
Spherical angle 1 is mounted in blade main body 2, and circular cone measuring head 8 is by being threadably mounted at 3 bottom of sliding bar;
Step 2: calibration steps, for small size full cone measuring head calibration when, by the three of spherical angle 1 A ball is placed in 9 plane of calibration component, and mobile sliding bar 3 is to 8 top of circular cone measuring head and 9 plane contact of calibration component, by zero Position button 7, the position of circular cone measuring head 8 are then measurement starting zero reference, and subsequent diameter calculation is based on this.
For large scale frusto-conical shape measuring head calibration when, three balls of spherical angle 1 and circular cone measuring head 8 End face simultaneously with 9 plane contact of calibration component, press origin configuration switch 6, setting value be frusto-conical shape measuring head small end end face Circular diameter value, if diameter is 10mm, i.e. the reading of the position is 10mm, and the sliding bar moving distance that subsequent diameter calculation is adds 10mm。
After 8 zero setting of circular cone measuring head, confirmatory measurement is carried out according to measurement method to the standard circular hole 91 in calibration component 9, really Protect the accuracy of calibration.
The alignment purpose of punching press bore dia device for fast detecting is to guarantee that thin-wall part measures plano spherical on thin-wall part The top of angle 1 and circular cone measuring head 8 in the same plane, determines that circular hole measures zero reference, and by calibration component 9 Standard circular hole 91 verified, it is ensured that device precision;
Step 3: measuring process, hand-held detection device blade main body 2 by three spheres of spherical angle 1 be placed on by It surveys on plane or the curved surface of circular, the center of circular cone measuring head 8 is made to be in tested circular hole the center point substantially;Device is placed steady Sliding bar 3 is pushed after fixed, protrudes into circular cone measuring head 8 in measured hole;Detection device position is finely tuned, so that circular cone measuring head 8 After surface is bonded with measured circle hole boundary, directly read on LED liquid crystal display 4.When measurement, it can repeat to survey by the above process Amount, confirms the repeatability of its measurement data;
Step 4: calculating step, when sliding bar 3 is mobile, has relative displacement generation between main grid 11 and secondary grid 10, that is, holds Mechanical displacement is transformed into the phase changing capacity of electric signal by displacement transducer, is then sent to measuring circuit and is carried out at data Reason.By calibration after zero-bit and acquired circular cone measuring head 8 go deep into circular hole depth distance, it is big to calculate tested Circularhole diameter It is small, it is shown by LED liquid crystal display 4.
In conclusion the spherical positioning stabilizer blade being reasonably distributed in apparatus of the present invention structure using three is supported, survey ensure that Stability when amount, while being determined that measurement direction is substantially parallel with thin-walled axially bored line, the method also complies with the measurement side of specification Formula uses cone-apex angle as the conical measuring head of 90 ° of two kinds of shapes, the sensitivity of diameter minor change when improving measurement circular hole Degree, and circular hole measurement range is improved, using grating and LED number display mode, measurement accuracy is improved, artificial reading is avoided Number error.The invention device alleviates the time of the acquisition measurement of reviewer, improves detection efficiency, measurement accuracy and measurement Reliability, while the disadvantages of overcome manual operation and digitized measurement not suitable for detection, it can be used for industry spot thin-wall part circular hole Measurement.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow Ring substantive content of the invention.

Claims (5)

1. punching press bore dia device for fast detecting on a kind of thin-wall part, which is characterized in that it include mechanical part, digital display part, Sensor section, calibration component, mechanical part include spherical angle, blade main body, sliding bar, circular cone measuring head, digital display part Including LED liquid crystal display, power switch, origin configuration switch, zero-bit button, sensor portion is divided into capacitive grating displacement sensing comprising Main grid and secondary grid, one side end face of upper end of sliding bar is respectively equipped with a LED liquid crystal display and a power switch, LED liquid crystal display Positioned at the lower section of power switch, the upper end rear end face of sliding bar is respectively equipped with an origin configuration switch and a zero-bit button, Origin configuration switch is located at the top of zero-bit button, and the lower end of sliding bar is equipped with a threaded boss, threaded boss It is threadedly coupled with circular cone measuring head, circular cone measuring head is the standard taper measuring head that cone-apex angle is 90 °, and blade main body is located at sliding The outside of bar, main grid are fixed on blade main body, and secondary grid are fixed on sliding bar, and the outside lower end of blade main body sets that there are three supports Foot, the lower end of three support legs are threadedly coupled with a spherical angle respectively, three spherical angle distributing positions and number Change the projection plane direction that contact type measurement mode is identical, measures for establishing circular hole, sliding bar part and spherical angle group At plane it is vertical, detection device calibrate when, spherical angle is placed in calibration component plane, calibration component be one piece be equipped with multiple one Determine the plate of the standard circular hole of precision.
2. punching press bore dia device for fast detecting on thin-wall part according to claim 1, which is characterized in that the circular cone is surveyed Amount head is full cone measuring head.
3. punching press bore dia device for fast detecting on thin-wall part according to claim 1, which is characterized in that the circular cone is surveyed Amount head is frusto-conical shape measuring head.
4. punching press bore dia device for fast detecting on thin-wall part according to claim 1, which is characterized in that the circular cone is surveyed The size for measuring head carries out customized and selection according to practical tested pore size.
5. a kind of detection method using punching press bore dia device for fast detecting on thin-wall part described in claim 1, feature exist In comprising following steps:
Step 1: selecting spherical angle and circular cone measuring head, of different sizes according to surveyed thin-wall hole, selects be suitble to be tested respectively The spherical angle and circular cone measuring head of hole size;Spherical angle is mounted in blade main body, and circular cone measuring head is mounted on cunning The threaded boss of lever bottom;
Step 2: calibration steps, standard circular hole with the plane of calibration component and thereon calibrate device, setting measurement zero-bit Benchmark, i.e., subsequent measurement data with this position measurement initial position start to calculate, and to aperture device for fast detecting measurement before The calibration of self precision;
Step 3: measuring process holds detection device, and three spheres of spherical angle are placed on the flat of tested circular On face or curved surface, the center of circular cone measuring head is made to be in tested circular hole the center point substantially;Mobile sliding bar, stretches circular cone measuring head Enter in measured hole;Detection device is finely tuned, so that being read after the surface of circular cone measuring head is bonded with the boundary of tested circular hole;
Step 4: calculating step, gos deep into circular hole depth by the main grid and secondary grid two parts, reading of capacitive displacement transducer, counts Measured circle pore diameter size is calculated, is shown by LED liquid crystal display.
CN201610535998.4A 2016-07-10 2016-07-10 Punching press bore dia device for fast detecting and its method on thin-wall part Active CN106225661B (en)

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CN111829461B (en) * 2020-07-23 2022-06-03 菲烁易维(重庆)科技有限公司 Positioning target, vision measurement system and method for acquiring flatness

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CN103884307A (en) * 2014-02-21 2014-06-25 杭州天扬机械有限公司 60 degree chamfering aperture diameter rapid detection device
CN104121863A (en) * 2014-07-25 2014-10-29 杭州电子科技大学 Non-contact hole diameter measuring device

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