CN110260778A - Chamfering measurement method and device based on electromagnetic principle - Google Patents
Chamfering measurement method and device based on electromagnetic principle Download PDFInfo
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- CN110260778A CN110260778A CN201910653613.8A CN201910653613A CN110260778A CN 110260778 A CN110260778 A CN 110260778A CN 201910653613 A CN201910653613 A CN 201910653613A CN 110260778 A CN110260778 A CN 110260778A
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- 238000000691 measurement method Methods 0.000 title claims description 7
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 230000005284 excitation Effects 0.000 claims abstract description 42
- 238000012545 processing Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
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- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The present invention provides a kind of chamfering measuring device based on electromagnetic principle, comprising: so that a positioning and driving mechanism that revolving parts are rotated in a fixed bit along its own axis；One electromagnetic sensor of the corresponding top of revolving parts chamfering is set, for measuring the distance between electromagnetic sensor and revolving parts chamfering, converts corresponding electric signal for the range information, and send to signal processing apparatus；For fixing a bracket of the electromagnetic sensor；For providing a magnetic field excitation device of excitation for electromagnetic sensor；The signal processing apparatus for issuing electric signal for receiving electromagnetic sensor and being handled.The present invention uses non-contact detection mode, and detection speed is fast, can carry out automatic detection.
Description
Technical field
The present invention relates to manufacturing industry measuring instrument field, especially a kind of chamfering for conductive material revolving parts is examined
Survey method and measuring instrument.
Background technique
In field of machining, chamfering is a very universal and important procedure, while having a variety of effects.Such as it can
Related personnel is scratched to avoid wedge angle, the stress that can reduce part, which is concentrated, reinforces part strength, can provide and lead in assembly
To effect.Chamfering may deviate design size in processing or the depth is uneven, have larger impact to the quality of part in this way,
It is therefore desirable to the chamferings to part to measure.
Currently, chamfering measurement method is the most commonly used is mechanical methods such as vernier caliper, chamfer gage chamfering outline detectors, this
Kind method, which is completely dependent on, manually to be measured, reads, and measuring tool needs contact measured part, may add to high quality
Work surface damages, and detection efficiency is low, vulnerable to interference from human factor.
A kind of chamfering measurement method based on light method for reflection is described in Chinese patent CN101036045A, it is basic
Thinking is in the chamfering to be measured being irradiated to light level between two vertical planes, and the light being irradiated in chamfering to be measured is in 90 ° anti-
Penetrate one bright light belt of rear stroke；The width of the light belt is measured by obtaining bright light belt image, the width of the light belt is pair
It should be the R value of chamfering to be measured.The device of this method is complicated, needs light source emitter and video camera, it is also necessary to obtained figure
As being analyzed and processed, operand is big.Optical means has higher requirements to the clean surface degree and surface quality of part, is difficult
There is the part chamfering of more greasy dirt and finished surface complexity on detection surface.In addition optical means to measurement environment it is more demanding,
Easily it is disturbed by ambient light.
Summary of the invention
It is an object of the present invention to overcome the shortcomings of the prior art and provide a kind of, and the chamfering based on electromagnetic principle is surveyed
Method and device is measured, using non-contact detection mode, detection speed is fast, can carry out automatic detection.What the present invention used
Technical solution is:
A kind of chamfering measuring device based on electromagnetic principle, comprising:
So that positioning and driving mechanism that revolving parts are rotated in a fixed bit along its own axis；
The electromagnetic sensor of the corresponding top of revolving parts chamfering is set, is fallen for measuring electromagnetic sensor with revolving parts
The distance between angle converts corresponding electric signal for the range information, and sends to signal processing apparatus；
For fixing the bracket of the electromagnetic sensor；
For providing the magnetic field excitation device of excitation for electromagnetic sensor；
The signal processing apparatus for issuing electric signal for receiving electromagnetic sensor and being handled.
Further, the positioning and driving mechanism include twin-roll and for driving drive roll in twin-roll to rotate
Driving device；Twin-roll includes two rollers disposed in parallel；Two rollers are separated by a distance and are mounted on platform.
Further, bracket is stood on the outside of twin-roll one end, and is aligned among two rollers；
The electromagnetic sensor being installed on bracket is located at twin-roll middle upper part.
Further, in twin-roll, wherein one or two roller is as drive roll, and driving device is for driving master
Dynamic roller rotation.
Further, the bracket can adjust the height of electromagnetic sensor.
Further, the electromagnetic sensor uses eddy current sensor, and eddy current sensor includes excitation coil, receives difference
Coil receives detection coil；It receives difference coil, excitation coil and receives detection coil and arranged along axis of workpiece direction to be measured；
Excitation coil, which is located at, to be received difference coil and receives among detection coil, and the surface that detection coil is located at part chamfering is received,
The other side that difference coil is located at excitation coil is received, and opposite with part circumferential surface；It receives difference coil and receives detection coil
After carrying out difference connection, signal processing apparatus is reconnected；Excitation coil connects magnetic field excitation device.
Further, when part to be measured rotates, eddy current sensor carries out complete cycle scanning, magnetic field to the chamfering of part to be measured
Exciting bank drives excitation coil to generate alternating magnetic field, and part to be measured generates the whirlpool electricity of part in alternating magnetic field near chamfering
Stream；Reception detection coil senses that distance is remote at the position of chamfering depth, senses that distance is close at the shallow position of chamfering, and reception is poor
Sub-coil does not sense distance change because of corresponding part circumferential surface；It receives difference coil and receives the difference letter of detection coil
Number it is output to processing and judgement that signal processing apparatus carries out signal.
A kind of chamfering measurement method based on electromagnetic principle, comprising:
Electromagnetic sensor is placed in the top of revolving parts chamfering, driving rotary body part is rotated along own axes, when returning
When the chamfering of swivel part is uneven, the distance between electromagnetic sensor and revolving parts chamfering will generate variation, electromagnetism
The information of distance change between revolving parts chamfering is converted electric signal, the electric signal and electromagnetic sensor by sensor
The variable quantity in the magnetic field sensed is directly proportional, finally handles electric signal transmission to signal processing apparatus, judges.
Further, the electromagnetic sensor uses eddy current sensor, and eddy current sensor includes excitation coil, receives difference
Coil receives detection coil；It receives difference coil, excitation coil and receives detection coil and arranged along axis of workpiece direction to be measured；
Excitation coil, which is located at, to be received difference coil and receives among detection coil, and the surface that detection coil is located at part chamfering is received,
The other side that difference coil is located at excitation coil is received, and opposite with part circumferential surface；It receives difference coil and receives detection coil
After carrying out difference connection, signal processing apparatus is reconnected；Excitation coil connects magnetic field excitation device；
When part to be measured rotates, eddy current sensor carries out complete cycle scanning to the chamfering of part to be measured, and the driving of magnetic field excitation device swashs
It encourages coil and generates alternating magnetic field, part to be measured generates the eddy current of part in alternating magnetic field near chamfering；Receive detection coil
Sense that distance is remote at the position of chamfering depth, it is close to sense distance at the shallow position of chamfering, and receives difference coil because of corresponding zero
Part circumferential surface and do not sense distance change；The differential signal for receiving difference coil and reception detection coil is output at signal
Manage processing and judgement that device carries out signal.
The present invention has the advantages that
1) size of the principle detection chamfering of electromagnetic positioning, realizes non-contact detecting, can carry out automatic detection, avoid
Interference from human factor in artificial detection.
2) structure of receiving coil difference output is applied in chamfering measuring device, and the output of receiving coil signal differential can be with
Common-mode noise in detection environment is reduced, detection accuracy is improved.
3) the chamfering detection of the part of instrument adaptation different size may be implemented in bracket.
Detailed description of the invention
Fig. 1 is structural front view of the invention.
Fig. 2 is structural side view of the invention.
Fig. 3 is a kind of embodiment schematic diagram of electromagnetic sensor of the invention.
Specific embodiment
Below with reference to specific drawings and examples, the invention will be further described.
Embodiment one；
As shown in Figure 1, a kind of chamfering measuring device based on electromagnetic principle, comprising: platform 4, for positioning part 1 to be detected
Twin-roll 2, the eddy current sensor 5 for detecting part chamfering, is used to install vortex the motor 3 for driving twin-roll 2 to rotate
Sensor 5, and the bracket 6 of adjusting can be upgraded；
In the present embodiment, part 1 to be measured is the rodlike part of a both sides chamfering, and part 1 to be measured, which is placed on double roller cylinder 2, to be determined
Position；Twin-roll 2 includes two roller 2-1,2-2 disposed in parallel；Two rollers 2-1,2-2 are separated by a distance and are mounted on platform
On 4；Bracket 6 is also mounted on platform 4, is stood on the outside of twin-roll one end, and is aligned among two rollers 2-1,2-2；Bracket 6 wraps
Stand 6-2, transverse arm 6-1, lock-screw 6-3 are included, transverse arm 6-1 is fixed on stand 6-2 by lock-screw 6-3, and extends to double rollings
The middle upper part of cylinder；Eddy current sensor 5 is arranged on transverse arm 6-1；Lock-screw 6-3 in releases clamp 6 adjusts transverse arm 6-1
Height, make eddy current sensor 5 bottom be higher than part 1 to be measured 0.05~2mm of top, tighten lock-screw 6-3；Vortex passes
Sensor 5 is height-adjustable, meets the demand to the detection of various sizes of revolving parts；
In twin-roll, wherein one or two roller is as drive roll；When drive roll only one, the shaft of motor 3 can
It is directly connected to the shaft of the drive roll；When drive roll is two, motor 3 can be distinguished by two independent transmission mechanisms
Two drive rolls are driven, transmission mechanism includes gear set transmission or chain sprocket transmission mechanism etc.；
As shown in figure 3, eddy current sensor 5 includes excitation coil 5-1, receives difference coil 5-2, receives detection coil 5-3；It receives
Difference coil 5-2, excitation coil 5-1 and reception detection coil 5-3 are arranged along axis of workpiece direction to be measured；Excitation coil 5-1
In receiving difference coil 5-2 and receiving among detection coil 5-3, the surface that detection coil 5-3 is located at part chamfering is received, is connect
Astigmat sub-coil 5-2 is located at the other side of excitation coil 5-1, and opposite with part circumferential surface；It receives difference coil 5-2 and receives inspection
After test coil 5-3 carries out difference connection, signal processing apparatus is reconnected；Excitation coil 5-1 connection magnetic field excitation device；
When motor 3 is powered, motor rotation drives double roller cylinder 2 to rotate, and the rotation of double roller cylinder 2 drives part 1 to be measured to rotate；Vortex passes
Sensor 5 carries out complete cycle scanning to the chamfering of part 1 to be measured, and magnetic field excitation device drives excitation coil 5-1 to generate alternating magnetic field, to
Survey part 1 generates part in alternating magnetic field eddy current near chamfering；Detection coil 5-3 is received to incude at the position of chamfering depth
It is remote to distance, it is close that distance is sensed at the shallow position of chamfering, and receive difference coil 5-2 not thoughts due to corresponding part circumferential surface
Distance change should be arrived；The differential signal for receiving difference coil 5-2 and reception detection coil 5-3 is output to signal processing apparatus progress
The processing and judgement of signal.
Embodiment two；The present embodiment is basically the same as the first embodiment, distinguish the positioning mechanism that is only that in the present embodiment from
Double roller cylinder is changed to scroll chuck, with scroll chuck clamp revolving parts, driving mechanism drive scroll chuck rotation, part also with
Rotation.
Embodiment three；The present embodiment is basically the same as the first embodiment, and distinguishes the electromagnetic sensor being only that in the present embodiment
It is changed to magnetic-flux measurement formula displacement sensor from eddy current sensor, is also able to achieve chamfering distance detection function.
Finally it should be noted that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it, to the greatest extent
Pipe is described the invention in detail referring to example, those skilled in the art should understand that, it can be to of the invention
Technical solution is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered
In scope of the presently claimed invention.
Claims (9)
1. a kind of chamfering measuring device based on electromagnetic principle characterized by comprising
So that positioning and driving mechanism that revolving parts are rotated in a fixed bit along its own axis；
The electromagnetic sensor of the corresponding top of revolving parts chamfering is set, is fallen for measuring electromagnetic sensor with revolving parts
The distance between angle converts corresponding electric signal for the range information, and sends to signal processing apparatus；
For fixing the bracket of the electromagnetic sensor；
For providing the magnetic field excitation device of excitation for electromagnetic sensor；
The signal processing apparatus for issuing electric signal for receiving electromagnetic sensor and being handled.
2. the chamfering measuring device based on electromagnetic principle as described in claim 1, which is characterized in that
The positioning includes twin-roll and the driving device for driving drive roll rotation in twin-roll with driving mechanism；Double rollings
Cylinder includes two rollers disposed in parallel；Two rollers are separated by a distance and are mounted on platform.
3. the chamfering measuring device based on electromagnetic principle as claimed in claim 2, which is characterized in that
Bracket is stood on the outside of twin-roll one end, and is aligned among two rollers；
The electromagnetic sensor being installed on bracket is located at twin-roll middle upper part.
4. the chamfering measuring device based on electromagnetic principle as claimed in claim 2, which is characterized in that
In twin-roll, wherein one or two roller is as drive roll, and driving device is for driving drive roll to rotate.
5. the chamfering measuring device based on electromagnetic principle as described in claim 1, which is characterized in that
The bracket can adjust the height of electromagnetic sensor.
6. the chamfering measuring device based on electromagnetic principle as described in claim 1, which is characterized in that
The electromagnetic sensor uses eddy current sensor, and eddy current sensor includes excitation coil, receives difference coil, receives detection
Coil；It receives difference coil, excitation coil and receives detection coil and arranged along axis of workpiece direction to be measured；Excitation coil, which is located at, to be connect
Among astigmat sub-coil and reception detection coil, the surface that detection coil is located at part chamfering is received, receives difference coil position
In the other side of excitation coil, and it is opposite with part circumferential surface；After reception difference coil is connected with reception detection coil progress difference,
Reconnect signal processing apparatus；Excitation coil connects magnetic field excitation device.
7. the chamfering measuring device based on electromagnetic principle as claimed in claim 6, which is characterized in that
When part to be measured rotates, eddy current sensor carries out complete cycle scanning to the chamfering of part to be measured, and the driving of magnetic field excitation device swashs
It encourages coil and generates alternating magnetic field, part to be measured generates the eddy current of part in alternating magnetic field near chamfering；Receive detection coil
Sense that distance is remote at the position of chamfering depth, it is close to sense distance at the shallow position of chamfering, and receives difference coil because of corresponding zero
Part circumferential surface and do not sense distance change；The differential signal for receiving difference coil and reception detection coil is output at signal
Manage processing and judgement that device carries out signal.
8. a kind of chamfering measurement method based on electromagnetic principle characterized by comprising
Electromagnetic sensor is placed in the top of revolving parts chamfering, driving rotary body part is rotated along own axes, when returning
When the chamfering of swivel part is uneven, the distance between electromagnetic sensor and revolving parts chamfering will generate variation, electromagnetism
The information of distance change between revolving parts chamfering is converted electric signal, the electric signal and electromagnetic sensor by sensor
The variable quantity in the magnetic field sensed is directly proportional, finally handles electric signal transmission to signal processing apparatus, judges.
9. the chamfering measurement method based on electromagnetic principle as claimed in claim 8, which is characterized in that
The electromagnetic sensor uses eddy current sensor, and eddy current sensor includes excitation coil, receives difference coil, receives detection
Coil；It receives difference coil, excitation coil and receives detection coil and arranged along axis of workpiece direction to be measured；Excitation coil, which is located at, to be connect
Among astigmat sub-coil and reception detection coil, the surface that detection coil is located at part chamfering is received, receives difference coil position
In the other side of excitation coil, and it is opposite with part circumferential surface；After reception difference coil is connected with reception detection coil progress difference,
Reconnect signal processing apparatus；Excitation coil connects magnetic field excitation device；
When part to be measured rotates, eddy current sensor carries out complete cycle scanning to the chamfering of part to be measured, and the driving of magnetic field excitation device swashs
It encourages coil and generates alternating magnetic field, part to be measured generates the eddy current of part in alternating magnetic field near chamfering；Receive detection coil
Sense that distance is remote at the position of chamfering depth, it is close to sense distance at the shallow position of chamfering, and receives difference coil because of corresponding zero
Part circumferential surface and do not sense distance change；The differential signal for receiving difference coil and reception detection coil is output at signal
Manage processing and judgement that device carries out signal.
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Cited By (1)
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| CN110260778B (en) | 2024-05-17 |
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