CN106767591A - A kind of inner hole detecting device and its detection method - Google Patents
A kind of inner hole detecting device and its detection method Download PDFInfo
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- CN106767591A CN106767591A CN201611067324.2A CN201611067324A CN106767591A CN 106767591 A CN106767591 A CN 106767591A CN 201611067324 A CN201611067324 A CN 201611067324A CN 106767591 A CN106767591 A CN 106767591A
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- 238000001514 detection method Methods 0.000 title claims abstract description 108
- 238000006073 displacement reaction Methods 0.000 claims abstract description 56
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- 230000006835 compression Effects 0.000 claims description 15
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- 238000005259 measurement Methods 0.000 abstract description 15
- 238000006243 chemical reaction Methods 0.000 description 8
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
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Abstract
The invention provides a kind of inner hole detecting device and its detection method, wherein, device includes detection axle, sensor, spring-loaded device and processor, and commutator is movably set on detection axle, and detects that the diameter of axle of axle gradually increases along direction of feed；Sensor is used to measure the displacement signal of commutator；Spring-loaded device is used to promote commutator to be moved along direction of feed on detection axle；Processor is electrically connected with sensor and spring-loaded device, processor obtains the active force that commutator is subject to according to displacement signal computing, with real-time control spring-loaded device, and then cause that spring-loaded device load in loading procedure linearly smoothly increases, so as to improve the stability and certainty of measurement of inner hole detecting device work.
Description
Technical field
The present invention relates to commutator processing detection field, and in particular to a kind of inner hole detecting device of detection commutator endoporus
And its detection method.
Background technology
Commutator is the important component in motor, and the requirement on machining accuracy to commutator endoporus is higher, particularly commutator
The circularity of endoporus, commutator endoporus are extremely strict with the tolerance of cylindrical same post degree and aperture, will otherwise directly affect
The operating efficiency and service life of motor.Traditional commutator endoporus detection is general using manually being detected with micrometer, receives
The influence of human factor, easily causes that inefficiency, prohibited data detection be true, the uneven congruence influence of measure the item.
In this regard, Chinese patent literature CN203744964U discloses a kind of inner hole detection head, its housing 1 ' for being provided with tubular,
Push rod 2 ' is arranged in the bottom of housing 1 ' through bearing, and the lower end of push rod 2 ' is provided with the measuring jaw 3 ' with the taper fit of push rod 2 ',
The upper end of push rod 2 ' is cased with balancing spring 4 ', and the upper end of push rod 2 ' is connected with the telescopic arm 51 ' of ejection cylinder 5 ', the bottom of push rod 2 '
Detection cross bar 6 ' is provided with, the side body 1 ' of push rod 2 ' is interior to be provided with detection bar 7 ', and the lower end of detection bar 7 ' is provided with contact digital displacement
Sensor 8 ', contact digital displacement sensor 8 ' is inconsistent with detection cross bar 6 '.When the inner hole detection head works, cylinder is ejected
5 ' eject downwards push rod 2 ', and measuring jaw 3 ' radially outward opens and detected with to commutator endoporus；Detection ejects cylinder after terminating
5 ' retractions, measuring jaw 3 ' returns to initial position in the presence of back-moving spring 4 '.In the process, contact digital displacement sensing
Device 8 ' draws displacement data, and by calculating the diameter of endoporus accordingly；Again by the diameter of bore data that will measure with
Data on the basis of ring standard gauge are compared, and judge whether in the range of tolerable variance of setting, so as to judge the commutator of detection
Whether it is certified products.
But, above-mentioned inner hole detection head is because using the ejection start of cylinder 5 ', ejection cylinder 5 ' is punching to the thrust of measuring jaw 3 '
Thrust is hit, while the thrust size for ejecting cylinder 5 ' cannot be controlled accurately, so measuring jaw 3 ' is applied on detected commutator
Load be shock loading, additionally, the detection mode is to the perpendicularity between workpiece placed side and detection head loading direction and position
Degree of putting requirement is very high, if detection head and the not timely correcting of detected commutator, easily causes detection cross bar 6 ' and passes to contact
The load of formula digital displacement sensor 8 ' is excessive, and then overload occurs and is stopped, or even can be caused to being detected commutator
Expendable destruction, so as to have impact on the stability and certainty of measurement of inner hole detection head work.Therefore in how ensureing
The stability of hole detection head work, nowadays problem demanding prompt solution is become to improve certainty of measurement.
The content of the invention
Therefore, the technical problem to be solved in the present invention be overcome the inner hole detection head of prior art because measuring jaw be detected
It is shock loading between commutator, and then easily causes the technology that contact digital displacement sensor overloads and influences job stability
Defect.
Therefore, according in a first aspect, the present invention provides a kind of inner hole detecting device, the endoporus for detecting commutator, bag
Include：Detection axle, commutator is movably set on detection axle, and detects that the diameter of axle of axle gradually increases along direction of feed；Sensor,
Displacement signal for measuring commutator；Spring-loaded device, for promoting commutator to be moved along direction of feed on detection axle；
Processor, is electrically connected with sensor and spring-loaded device, and processor obtains what commutator was subject to according to displacement signal computing
Active force, with real-time control spring-loaded device.
Preferably, spring-loaded device includes elastic parts, pressure head and drive device, wherein, pressure head is arranged on elasticity
One end of detection axle is right against on component, elastic compression can occur between pressure head and elastic parts；Drive device and elastic group
Part is connected, and drives elastic parts to be moved along direction of feed.
Preferably, elastic parts is weight beam, one end of the expansion link of weight beam is installed with pressure head,
The other end of expansion link is fixedly connected with a mounting rod, and the end of mounting rod is provided with sensing chip；Sensor is sensing sensing chip
Position and send a signal to the laser sensor of processor, sensor is relatively fixed setting with the housing of weight beam.
Preferably, spring-loaded device also includes pedestal, an erecting bed is provided with pedestal, elastic parts is by least
One mounting seat is fixedly mounted on erecting bed；Sensor is fixedly mounted on erecting bed, and is set with elastic parts parallel interval.
Preferably, drive device is servomotor, sliding block and the ball wire on sliding block are provided with pedestal
Thick stick, one end of ball-screw is connected with the output shaft of servomotor, and the other end of ball-screw is threaded on sliding block.
Preferably, drive device is servomotor, the output shaft end of servomotor is fixed with a gear；Edge on pedestal
The direction of feed of pressure head is provided with a tooth bar, wheel and rack engaged transmission.
Preferably, detection axle position is provided with the chamfering for commutator insertion in one end that pressure head is arranged, chamfering position
Maximum tolerance diameter of the maximum gauge more than commutator.
According to second aspect, the present invention also provides a kind of inner bore detection method, comprises the following steps：Elasticity loading, control
Spring-loaded device is moved by initial position along direction of feed, and promotes commutator to be moved along direction of feed on detection axle, its
The diameter of axle of middle detection axle gradually increases along direction of feed；Data Detection, the displacement that detection commutator is moved on detection axle；Number
According to treatment, the pressure that commutator is subject to is obtained according to displacement analysis；Result judges, judges to move to predeterminated position when commutator
When, whether pressure is in pressure criteria range of tolerable variance；And/or judge when pressure reaches preset value, the displacement of commutator is
It is no in the range of displacement standard allowance.
Preferably, in spring-loading step, spring-loaded device includes elastic parts, pressure head and drive device,
Wherein, pressure head is arranged on elastic parts the one end for being right against detection axle, and elastic pressure can occur between pressure head and elastic parts
Contracting；Drive device is connected with elastic parts, and drives elastic parts to be moved along direction of feed.
Preferably, the step of Data Detection includes：The initial bit of elastic parts when record pressure head rigid connection contacts commutator
Shifting amount；Detect the work shift amount of the commutator amount of contraction of pressure head and elastic parts in moving process.
The inner hole detecting device and its detection method that the present invention is provided have the following advantages that：
1. inner hole detecting device, because commutator is movably set on detection axle, and detects the diameter of axle of axle along feeding side
To gradually increasing, and then when commutator is moved along detection axle, the through hole of commutator is subject to the active force of detection axle gradually to increase,
And then spring-loaded device promotes commutator also gradually to increase along the thrust that direction of feed is moved；Simultaneously as processor can be with
The displacement signal computing measured according to sensor obtains the active force that commutator is subject to, with adding for real-time control spring-loaded device
Load situation, and then cause that spring-loaded device load in loading procedure linearly smoothly increases, so as to improve endoporus inspection
Survey the stability and certainty of measurement of device work.
2. inner hole detecting device, the one end for detecting axle is right against because pressure head is arranged on elastic parts, and drive device is driven
Dynamic elasticity component is moved along direction of feed, and then applies pressure with the end face to commutator along direction of feed movement with dynamic head,
So that commutator is moved on detection axle along direction of feed；Meanwhile, and due to elasticity can occur between pressure head and elastic parts
Compression, so pressure head to commutator apply pressure during, pressure head be subject to commutator reaction force and and elastic parts
Between elastic compression, and then realize to commutator elasticity loading, it is ensured that the stability of detection process.
3. inner hole detecting device, because elastic parts is weight beam, one end of the expansion link of weight beam is fixed
Pressure head is installed, the other end is fixedly connected with a mounting rod, and the end of mounting rod is provided with sensing chip, and then flexible when being arranged on
When the pressure head of bar one end is subject to the reaction force of commutator, pressure head occurs along the opposite direction of feeding with respect to the housing of weight beam
It is mobile, the same opposite direction movement along feeding of mounting rod of the expansion link other end is fixedly connected on, there is phase to drive sensing chip
To movement, so that sensor measures the decrement of pressure head by sensing the position of sensing chip and sending a signal to processor, and
The displacement that commutator is moved on detection axle is finally obtained with reference to the displacement of elastic parts；Use weight beam simultaneously
Mode, the decrement of pressure head is directly proportional to the reaction force that pressure head is subject to, and then can be by presetting corresponding computing formula
To obtain the reaction force that pressure head is subject to, that is, the active force that pressure head applies to commutator is obtained.
4. inner hole detecting device, is fixedly mounted on erecting bed by by elastic parts, and sensor is fixedly mounted on installation
On platform, and set with weight beam parallel interval, and then realize the relative position between sensor and weight beam housing
Fixation is put, effectively to measure decrement of the pressure head with respect to weight beam.
5. inner hole detecting device, because drive device is servomotor；Sliding block is provided with pedestal and installed in sliding block
On ball-screw, one end of ball-screw is connected with the output shaft of servomotor, and the other end of ball-screw is threaded in
On sliding block, so can by the speed for controlling the rotating speed of servomotor and being moved on ball-screw come control slide block and displacement,
The speed moved along direction of feed so as to the elastic parts that accurately control is arranged on pedestal and displacement.
6. inner hole detecting device, because detection axle position is provided with the chamfering for commutator insertion in one end that pressure head is arranged,
So that when commutator is moved on axle is detected, the through hole of commutator is subject to the active force of detection axle gradually to increase；Simultaneously as
The maximum gauge of chamfering position is more than the maximum tolerance diameter of commutator, and then causes that the chamfered part of detection axle is commutator
The position that can be moved on detection axle in measurement process, when commutator initial makeup location exceedes chamfered part, without
Measurement can determine that commutator is defective work.
7. inner bore detection method, obtains detecting the displacement that commutator is moved on detection axle by Data Detection, and
Data processing obtains the pressure that commutator is subject to, so during measurement can detecting real-time obtain commutator in different positions
The pressure being subject to when putting, so as to enable a processor to response in real time the load condition of control spring-loaded device, with
Ensure that load linearly smoothly increases in loading procedure during measurement, improve stability and the measurement of detection
Precision, last result again by being detected to result judgement.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the specific embodiment of the invention, below according to specific implementation of the invention
Example and with reference to accompanying drawing, is described in further detail to invention.
Fig. 1 is the schematic diagram of prior art inner hole detection head；
Fig. 2 is the schematic diagram of inner hole detecting device in the embodiment of the present invention 1；
Fig. 3 is the flow chart of inner bore detection method in the embodiment of the present invention 2.
Each description of reference numerals is as follows in figure：
1 '-housing；2 '-push rod；3 '-measuring jaw；4 '-balancing spring；
5 '-ejection cylinder；51 '-telescopic arm；6 '-detection cross bar；
7 '-detection bar；8 '-contact digital displacement sensor；1- detects axle；
2- sensors；3- spring-loaded devices；31- elastic parts；311- expansion links；
312- mounting rods；313- sensing chips；32- pressure heads；33- drive devices；
34- pedestals；341- erecting beds；342- mounting seats.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " on ", D score, " interior ", the orientation or position of the instruction such as " outward "
The relation of putting is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description, rather than
Indicate or imply signified device or element and must have specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as limitation of the present invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " company
Connect " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or it is integrally connected.For ability
For the those of ordinary skill in domain, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
As long as additionally, technical characteristic involved in invention described below different embodiments non-structure each other
Can just be combined with each other into conflict.
Embodiment 1
A kind of specific embodiment of inner hole detecting device as shown in Figure 2, the inner hole detecting device is used to detect commutation
The endoporus of device (not shown), including detection axle 1, sensor 2, spring-loaded device 3 and processor (not shown), wherein, change
It is movably set on detection axle 1 to device, and detects that the diameter of axle of axle 1 gradually increases along direction of feed；Sensor 2 is changed for measurement
To the displacement signal of device；Spring-loaded device 3 is used to promote commutator to be moved along direction of feed on detection axle 1；Processor with
Sensor 2 and spring-loaded device 3 are electrically connected with, and processor obtains the active force that commutator is subject to according to displacement signal computing,
With real-time control spring-loaded device 3.
Above-mentioned inner hole detecting device, because commutator is movably set on detection axle 1, and detects that the diameter of axle edge of axle 1 is entered
Gradually increase to direction, and then when commutator is moved along detection axle 1, the through hole of commutator be subject to the active force of detection axle 1 by
It is cumulative big, and then spring-loaded device 3 promotes commutator also gradually to increase along the thrust that direction of feed is moved；Simultaneously as place
The displacement signal computing that reason device can be measured according to sensor 2 obtains the active force that commutator is subject to, and is added with real-time control elasticity
The load condition for putting 3 is carried, and then causes that the load in loading procedure of spring-loaded device 3 linearly smoothly increases, so that
Improve the stability and certainty of measurement of inner hole detecting device work.
Specifically, detection axle 1 is provided with the chamfering for commutator insertion positioned at one end that pressure head is arranged so that work as commutator
When being moved on axle 1 is detected, the through hole of commutator is subject to the active force of detection axle 1 gradually to increase；Meanwhile, the maximum of chamfering position
With diameter greater than the maximum tolerance diameter of commutator, and then cause that the chamfered part of detection axle 1 is commutator in measurement process
The position that can be moved on detection axle 1, when commutator initial makeup location exceedes chamfered part, can determine that without measurement
Commutator is defective work.
In addition, spring-loaded device 3 includes elastic parts 31, pressure head 32, drive device 33 and pedestal 34, wherein,
Pressure head 32 is arranged on elastic parts 31 one end for being right against detection axle 1, and bullet can occur between pressure head 32 and elastic parts 31
Property compression；Drive device 33 is connected with elastic parts 31, and drives elastic parts 31 to be moved along direction of feed；Set on pedestal 34
There is an erecting bed 341, elastic parts 31 is fixedly mounted on erecting bed 341 by an at least mounting seat 342；Sensor 2 is fixed
On erecting bed 341, and set with the parallel interval of elastic parts 31.
Elastic parts 31 that parallel interval is set and after sensor 2 is fixedly mounted on erecting bed 341, sensor 2 with
Relative position between weight beam housing is fixed, and effectively can accurately measure pressure of the pressure head 32 with respect to weight beam
Contracting amount；When drive device 33 drives elastic parts 31 to be moved along direction of feed, the edge of pressure head 32 on elastic parts 31
Direction of feed is moved, and finally with commutator end contact with the end face applying pressure to commutator so that commutator is in detection
Moved along direction of feed on axle 1；Meanwhile, and due to elastic compression, Jin Er can occur between pressure head 32 and elastic parts 31
Pressure head 32 to commutator apply pressure during, pressure head 32 be subject to commutator reaction force and between elastic parts 31 bullet
Property compression, and then realize to commutator elasticity loading, it is ensured that the stability of detection process.
Used as optional implementation method, elastic parts 31 is weight beam, and then can be by commutator in detection process
The active force being subject to is visualized and directly read, and one end of the expansion link 311 of weight beam is installed with pressure head 32, is stretched
The other end of bar 311 is fixedly connected with a mounting rod 312, the end of mounting rod 312 be provided with sensing chip 313, i.e. pressure head 32 with
Sensing chip 313 is to be rigidly connected, and then when the pressure head 32 installed in the one end of expansion link 311 is subject to the reaction force of commutator,
Pressure head 32 is moved along the opposite direction of feeding with respect to the housing of weight beam, is fixedly connected on the other end of expansion link 311
The same opposite direction movement along feeding of mounting rod 312, to drive sensing chip 313 to relatively move.
Meanwhile, sensor 2 is the position of sensing sensing chip 313 and sends a signal to the laser sensor of processor, sensing
Device 2 is relatively fixed setting with the housing of weight beam, so that sensor 2 senses the position of sensing chip 313 and sends a signal to
Processor, by the decrement for sensing the displacement of sensing chip 313 to obtain pressure head 32, and finally with reference to the position of elastic parts 31
Shifting amount obtains the displacement that the commutator displacement that move, i.e. displacement of commutator on detection axle 1 are elastic parts 31
With the difference of the amount of contraction of pressure head 32；Simultaneously by the way of weight beam, the decrement of pressure head 32 is anti-with what pressure head 32 was subject to
Active force is directly proportional, and then can obtain the reaction force that pressure head 32 is subject to by presetting corresponding computing formula, that is, obtain
The active force that pressure head 32 applies to commutator.
Used as optional implementation method, drive device 33 is servomotor, be provided with pedestal 34 sliding block (not shown) with
And the ball-screw (not shown) on sliding block, one end of ball-screw is connected with the output shaft of servomotor, ball wire
The other end of thick stick is threaded on sliding block, and then can be by controlling the rotating speed of servomotor come control slide block in ball-screw
The speed of upper movement and displacement, so that the speed that accurately elastic parts 31 of the control on pedestal 34 is moved along direction of feed
Degree and displacement.In order to strengthen ball-screw installing and using the stability of process, often ball-screw also need to by one with watch
The relatively-stationary bearing block of motor is taken in the inner hole detecting device, and then is used at servomotor, sliding block, bearing block three
The mode of support, improves the stability of its installation.
Used as the implementation method of deformation, drive device 33 is servomotor, and the output shaft end of servomotor is fixed with one
Gear (not shown)；The direction of feed of pressure head 32 is provided with a tooth bar (not shown) on pedestal 34, wheel and rack engagement is passed
It is dynamic, and then control the elastic parts 31 being arranged on pedestal 34 to be moved along direction of feed by the engaged transmission of rack-and-pinion.
Embodiment 2
As shown in Figures 2 and 3, it is a kind of implementation method of inner bore detection method, comprises the following steps：
Elasticity loading, control spring-loaded device 3 is moved by initial position along direction of feed, and promotes commutator in detection
Moved along direction of feed on axle 1, wherein the diameter of axle of detection axle 1 gradually increases along direction of feed；
Data Detection, the displacement that detection commutator is moved on detection axle 1；
Data processing, the pressure that commutator is subject to is obtained according to displacement analysis；
Result judges that judge when commutator moves to predeterminated position, whether pressure is in pressure criteria range of tolerable variance；
And/or judge when pressure reaches preset value, whether the displacement of commutator is in the range of displacement standard allowance.
Above-mentioned inner bore detection method, obtains detecting the displacement that commutator is moved on detection axle 1 by Data Detection, with
And data processing obtains the pressure that commutator is subject to, so during measurement can detecting real-time obtain commutator in difference
The pressure being subject to during position, so as to the load condition for enabling a processor to response to control spring-loaded device 3 in real time,
To ensure that load linearly smoothly increases in loading procedure during measurement, stability and the survey of detection are improve
The precision of amount, and last again by judging pressure whether in pressure criteria range of tolerable variance, and/or commutator displacement whether
Judge whether commutator is certified products in the range of displacement standard allowance.
Specifically, in spring-loading step, spring-loaded device 3 includes elastic parts 31, pressure head 32 and drives dress
33 are put, wherein, pressure head 32 is arranged on elastic parts 31 one end for being right against detection axle 1, between pressure head 32 and elastic parts 31
Elastic compression can occur；Drive device 33 is connected with elastic parts 31, and drives elastic parts 31 to be moved along direction of feed, enters
And when elastic parts 31 is moved along direction of feed, the pressure head 32 on elastic parts 31 is moved along direction of feed, and most
Pressure is applied with the end face to commutator with commutator end contact eventually so that commutator is moved on detection axle 1 along direction of feed
It is dynamic；Meanwhile, and due to elastic compression can occur between pressure head 32 and elastic parts 31, and then commutator is applied in pressure head 32
During pressure, pressure head 32 be subject to the reaction force of commutator and between elastic parts 31 elastic compression, and then realize
Elasticity loading to commutator, it is ensured that the stability of detection process.
Meanwhile, include the step of Data Detection：
The initial displacement amount of elastic parts 31, that is, obtain the initial bit of pressure head 32 when the record rigid connection of pressure head 32 contacts commutator
Put；
Detect the work shift amount of the commutator amount of contraction of pressure head 32 and elastic parts 31 in moving process.
During commutator is moved, the displacement of elastic parts 31 be work shift amount and initial displacement amount it
Difference, due to elastic compression can occur between pressure head 32 and elastic parts 31, after pressure head 32 is subject to the opposition of commutator,
There is reverse compression in meeting relative resilient component 31, and then actual displacement of the commutator on detection axle 1 is elastic parts
The difference of 31 displacement and the amount of contraction of pressure head 32, so that processor can be according to initial displacement amount, amount of contraction and working position
The data processing of shifting amount obtains the displacement that commutator is moved on detection axle 1.Simultaneously as pressure head 32 is elastic compression, enter
And the amount of contraction of pressure head 32 is directly proportional to the pressure that commutator is subject to, such that it is able to be processed by setting corresponding computing formula
Obtain the pressure that commutator is subject to.
Include as the implementation method of deformation, the step of Data Detection：
The initial displacement amount of elastic parts 31 when the detection rigid connection of pressure head 32 contacts commutator；
Detect the work shift amount and the displacement of commutator of commutator elastic parts 31 in moving process.
By the initial displacement amount and work shift amount that detect elastic parts 31, you can obtain elastic parts 31 in pressure head
The moving displacement of 32 elastic parts 31 when supporting commutator, in combination with the displacement of commutator, you can obtain the receipts of pressure head 32
Contracting amount, because pressure head 32 is elastic compression, and then the amount of contraction of pressure head 32 is directly proportional to the pressure that commutator is subject to, such that it is able to
Processed by setting corresponding computing formula and obtain the pressure that commutator is subject to.
In addition, in the position detection of elastic parts 31, the home position of elastic parts 31 that can also be by setting,
And the work shift amount of commutator elastic parts 31 in moving process obtains the physical location of elastic parts 31；Then
Physical location of the commutator in moving process is obtained with reference to the amount of contraction of pressure head 32, and then can effectively be detected in real time every
The position of the commutator at one moment, so that control commutator to move to predeterminated position, to judge that whether pressure is during the predeterminated position
In pressure criteria range of tolerable variance.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of inner hole detecting device, the endoporus for detecting commutator, it is characterised in that including：
Detection axle (1), the commutator is movably set on detection axle (1), and the diameter of axle edge of detection axle (1) is entered
Gradually increase to direction；
Sensor (2), the displacement signal for measuring the commutator；
Spring-loaded device (3), for promoting the commutator to be moved along the direction of feed on detection axle (1)；
Processor, is electrically connected with the sensor (2) and the spring-loaded device (3), and the processor is according to institute's rheme
Shifting signal computing obtains the active force that the commutator is subject to, with spring-loaded device described in real-time control (3).
2. inner hole detecting device according to claim 1, it is characterised in that the spring-loaded device (3) is including elasticity
Component (31), pressure head (32) and drive device (33), wherein, the pressure head (32) is just right on the elastic parts (31)
In one end of detection axle (1), elastic compression can occur between the pressure head (32) and the elastic parts (31)；It is described
Drive device (33) is connected with the elastic parts (31), and drives the elastic parts (31) to be moved along the direction of feed.
3. inner hole detecting device according to claim 2, it is characterised in that the elastic parts (31) is spring dynamometry
Meter, one end of the expansion link (311) of the weight beam is installed with the pressure head (32), the expansion link (311)
The other end is fixedly connected with a mounting rod (312), and the end of the mounting rod (312) is provided with sensing chip (313)；The sensing
Device (2) to sense the position of the sensing chip (313) and sending a signal to the laser sensor of the processor, the sensor
(2) it is relatively fixed setting with the housing of the weight beam.
4. the inner hole detecting device according to Claims 2 or 3, it is characterised in that the spring-loaded device (3) also includes
Pedestal (34), is provided with an erecting bed (341) on the pedestal (34), the elastic parts (31) is by an at least mounting seat
(342) it is fixedly mounted on the erecting bed (341)；The sensor (2) is fixedly mounted on the erecting bed (341), and
Set with the elastic parts (31) parallel interval.
5. inner hole detecting device according to claim 4, it is characterised in that the drive device (33) is servomotor,
Sliding block and the ball-screw on the sliding block, one end of the ball-screw and institute are provided with the pedestal (34)
The output shaft connection of servomotor is stated, the other end of the ball-screw is threaded on the sliding block.
6. inner hole detecting device according to claim 4, it is characterised in that the drive device (33) is servomotor,
The output shaft end of the servomotor is fixed with a gear；Set along the direction of feed of the pressure head (32) on the pedestal (34)
It is equipped with a tooth bar, the gear and the tooth bar engaged transmission.
7. the inner hole detecting device according to any one of claim 1-6, it is characterised in that the detection axle (1) is located at
One end that the pressure head (32) is arranged is provided with the chamfering for commutator insertion, and the maximum gauge of the chamfering position is more than
The maximum tolerance diameter of the commutator.
8. a kind of inner bore detection method, it is characterised in that comprise the following steps：
Elasticity loading, control spring-loaded device (3) is moved by initial position along direction of feed, and promotes commutator in detection axle
(1) moved along direction of feed on, wherein the diameter of axle of detection axle (1) gradually increases along direction of feed；
Data Detection, detects the displacement that the commutator is moved on detection axle (1)；
Data processing, the pressure that the commutator is subject to is obtained according to displacement analysis；
Result judgement, judges that, when the commutator moves to predeterminated position, whether the pressure is in pressure criteria range of tolerable variance
It is interior；And/or judge when the pressure reaches preset value, whether the displacement of the commutator is in displacement standard allowance scope
It is interior.
9. the inner bore detection method according to claim 8, it is characterised in that in the spring-loading step, institute
Stating spring-loaded device (3) includes elastic parts (31), pressure head (32) and drive device (33), wherein, pressure head (32) peace
One end of detection axle (1), the pressure head (32) and the elastic parts are right against on the elastic parts (31)
(31) elastic compression can occur between；The drive device (33) is connected with the elastic parts (31), and drives the bullet
Property component (31) along the direction of feed move.
10. the inner bore detection method according to claim 9, it is characterised in that include the step of the Data Detection：
Record the initial displacement amount that the pressure head (32) rigid connection contacts the elastic parts (31) during the commutator；
Detect the work of the amount of contraction and the elastic parts (31) of commutator pressure head described in moving process (32)
Displacement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067324.2A CN106767591A (en) | 2016-11-28 | 2016-11-28 | A kind of inner hole detecting device and its detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067324.2A CN106767591A (en) | 2016-11-28 | 2016-11-28 | A kind of inner hole detecting device and its detection method |
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| CN106767591A true CN106767591A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611067324.2A Pending CN106767591A (en) | 2016-11-28 | 2016-11-28 | A kind of inner hole detecting device and its detection method |
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| CN (1) | CN106767591A (en) |
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| CN107796348A (en) * | 2017-12-07 | 2018-03-13 | 机科发展科技股份有限公司 | A kind of cold press measurement apparatus |
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| CN113533081A (en) * | 2020-04-15 | 2021-10-22 | Oppo（重庆）智能科技有限公司 | Intensity detection device and method and computer storage medium |
| CN115371611A (en) * | 2022-07-18 | 2022-11-22 | 无锡万奈特测量设备有限公司 | Compact elastic floating measuring head |
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| CN107796348A (en) * | 2017-12-07 | 2018-03-13 | 机科发展科技股份有限公司 | A kind of cold press measurement apparatus |
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