CN207866199U - Endoporus measuring device - Google Patents
Endoporus measuring device Download PDFInfo
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- CN207866199U CN207866199U CN201820107133.2U CN201820107133U CN207866199U CN 207866199 U CN207866199 U CN 207866199U CN 201820107133 U CN201820107133 U CN 201820107133U CN 207866199 U CN207866199 U CN 207866199U
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Abstract
The utility model provides a kind of Endoporus measuring device, including：Hole measuring head；Self-centering unit is set on the hole measuring head, and the hole measuring head can drive the self-centering unit to stretch into the endoporus of the part to be measured, and is positioned to the center of the hole measuring head by the self-centering unit；And sensor, it is set on the hole measuring head, the size for measuring the part endoporus to be measured.When measurement, hole measuring head drives self-centering unit to extend into the endoporus of part to be measured, self-centering unit positions the center of hole measuring head, so that the axis of hole measuring head is overlapped with the axis of part endoporus to be measured, then the size such as diameter etc. of endoporus is being measured by the sensor on hole measuring head；It is not necessarily to, by manually adjusting to just, reducing labor intensity, the degree of automation be improved, and then reduce failure rate, to improve measurement efficiency in this way.
Description
Technical field
The utility model is related to technical field of measuring equipment, more particularly to a kind of endoporus for being measured to endoporus
Measuring device.
Background technology
The critical component to being rolling stock is taken turns, the normal operation and safety of vehicle are directly related to.And take turns to wheel and
Brearing bore diameter measurement it is accurate whether, directly determine the apolegamy of wheel and bearing and the press fitting quality of wheel, bearing.
Currently, being measured to the diameter of wheel inner holes usually using wheel inner holes measuring machine.In order to make measurement head stretch into
Central alignment when in wheel hole ensures concentricity and measurement accuracy, and wheel centering and positioning device are arranged on the conveyor line to protect
The accurate positioning in wheel center hole is demonstrate,proved, measurement head outer diameter is coordinated with wheel inner holes using small―gap suture, and needs people when practical measurement
Work adjusts measurement head position alignment wheel inner holes, and labor intensity is big, and the degree of automation is low, in turn results in Frequent Troubles, and efficiency is low
Under, influence the accuracy of measurement result.
Utility model content
Based on this, it is necessary to lead to that labor intensity is big, effect for needing to manually adjust measurement head alignment wheel inner holes at present
The low problem of rate provides a kind of without manually adjusting centering to reduce labor intensity, carry efficient Endoporus measuring device.
Above-mentioned purpose is achieved through the following technical solutions：
A kind of Endoporus measuring device, the Endoporus measuring device are described for being measured to the size of part endoporus to be measured
Endoporus measuring device includes：
Hole measuring head；
Self-centering unit is set on the hole measuring head, and the hole measuring head can drive described automatic fixed
Concentric mechanism stretches into the endoporus of the part to be measured, and is carried out to the center of the hole measuring head by the self-centering unit
Positioning；And
Sensor is set on the hole measuring head, the size for measuring the part endoporus to be measured.
In one of the embodiments, the self-centering unit include actuator, transmission component and centering component, it is described
Actuator is installed on the hole measuring head, the transmission component drive connection actuator and the centering component, institute
It states centering component to be movably mounted on the hole measuring head, it is described fixed that the actuator is driven by the transmission component
Heart component overlaps the axis of the hole measuring head with the axis of the part endoporus to be measured.
The transmission component includes shaft and pivoted arm in one of the embodiments, one end of the pivoted arm and the drive
Moving part is hinged, and the other end of the pivoted arm and the shaft are affixed, and the shaft is in axial direction rotationally worn in described
Hole measurement head stretches out, and the centering component is installed in the shaft.
The centering component includes turntable and multiple is slidably set to the hole measuring in one of the embodiments,
Mandril on head, the turntable are installed in the shaft, and the outer profile of the turntable has multiple equally distributed protrusions, more
A mandril is corresponding with multiple protrusions respectively；
The actuator drives the shaft rotate and drives the turntable rotation by the pivoted arm, the turntable it is convex
It rises and is in contact with the mandril and the mandril stretching is made to abut to the inner wall of the part endoporus to be measured.
The quantity of the mandril is 2n in one of the embodiments, and wherein n >=2, the 2n mandrils uniformly divide
Cloth, two neighboring end of the mandril far from the turntable exist between being projected on the axial direction of the shaft it is default between
Away from opposite two ends of the mandril far from the turntable project coincidence on the axial direction of the shaft.
Line slide rail is set on the hole measuring head in one of the embodiments, the mandril is mounted slidably
In on the line slide rail.
The centering component further includes idler wheel in one of the embodiments, and the idler wheel is set to the mandril and institute
It states on one end that protrusion is in contact.
The centering component further includes draw springs in one of the embodiments, one end of the draw springs
It is connected on the mandril, the other end of the draw springs is connected on the hole measuring head.
The Endoporus measuring device further includes connecting seat and compensation mechanism, the connecting seat in one of the embodiments,
It is installed on the hole measuring head, the compensation device is installed on the connecting seat, and the compensation mechanism is for adjusting institute
State the registration of the axis of hole measuring head and the axis of the part endoporus to be measured.
The compensation mechanism includes connecting flange, rotary part and multiple compensation elastic components in one of the embodiments,
One end of the rotary part is connected to the connecting flange, and the other end of the rotary part connects the connecting seat, multiple
The compensation elastic component is in axial direction uniformly distributed between the connecting flange and the connecting seat.
The compensation mechanism further includes multiple adjustable end caps in one of the embodiments, multiple adjustable end caps point
It is not set to the both ends of the compensation elastic component.
The hole measuring head includes disk and outer cover, the self-centering unit installation in one of the embodiments,
In on the disk, the outer cover is set on the disk, and is enclosed and set the self-centering unit setting；
Multiple through-holes are opened up on the outer cover, multiple through-holes correspond to multiple mandrils, the turntable rotation respectively
So that the mandril is stretched out the through-hole, and is abutted with the inner wall of the part endoporus to be measured；
The sensor is laser sensor.
After adopting the above technical scheme, the beneficial effects of the utility model are：
The Endoporus measuring device of the utility model can measure the endoporus of part to be measured, when measurement, hole measuring head
Self-centering unit is driven to extend into the endoporus of part to be measured, self-centering unit positions the center of hole measuring head,
So that the axis of hole measuring head is overlapped with the axis of part endoporus to be measured, then internal by the sensor on hole measuring head
The size in hole such as diameter etc. measures；Effective solution, which needs to manually adjust at present measurement head alignment wheel inner holes, to be caused to work
The problem that intensity is big, efficiency is low can be automatically positioned the center of hole measuring head by self-centering unit so that hole measuring
The axis of head is overlapped with the axis of part endoporus to be measured, without by manually adjusting to just, reducing labor intensity, improving automation journey
Degree, and then failure rate is reduced, to improve measurement efficiency, while also ensuring the accuracy of measurement result.
Description of the drawings
Fig. 1 is the main view schematic cross-sectional view of Endoporus measuring device in one embodiment of the utility model；
Fig. 2 is the elevational schematic view that Endoporus measuring device shown in FIG. 1 removes outer cover；
Fig. 3 is the schematic front view that Endoporus measuring device shown in FIG. 1 removes outer cover；
Wherein：
100- Endoporus measuring devices；
110- hole measuring heads；
111- disks；
112- outer covers；
120- self-centering units；
121- actuators；
122- transmission components；1221- pivoted arms；1222- shafts；1223- bearings；
123- centering components；1231- turntables；1232- mandrils；1233- line slide rails；1234- idler wheels；1235- stretches bullet
Property part；
130- connecting seats；
140- compensation mechanisms；
141- connecting flanges；
142- rotary parts；
143- compensates elastic component；
End cap that 144- is adjustable；
150- laser sensors.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, by the following examples, it and ties
Attached drawing is closed, the Endoporus measuring device of the utility model is further elaborated.It should be appreciated that described herein specific
Embodiment only to explain the utility model, is not used to limit the utility model.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).In the description of the present invention, it should be understood that term "upper", "lower", "front", "rear",
The orientation or position of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise "
It is to be based on the orientation or positional relationship shown in the drawings to set relationship, is merely for convenience of describing the present invention and simplifying the description, and
It is not that the device of instruction or hint meaning or element must have a particular orientation, with specific azimuth configuration and operation, therefore
It should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature is "above" or "below" second feature
Can be that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature and be directly above or diagonally above the second feature, or only
Indicate that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
Referring to Fig. 1 to Fig. 3, the utility model provides a kind of Endoporus measuring device 100, which uses
It is measured in the size to part endoporus to be measured, such as the diameter of endoporus.The Endoporus measuring device 100 of the utility model is mainly used for
The wheel of locomotive and the diameter of bore of bearing are detected, to ensure that testing result is accurate and reliable, and then guarantee part such as wheel to be measured,
The press fitting quality of bearing etc. part.In the present invention, the endoporus of part to be measured includes but not limited to the endoporus of wheel, bearing
Endoporus etc..
In the present invention, Endoporus measuring device 100 includes hole measuring head 110, self-centering unit 120 and sensing
Device.Hole measuring head 110 has been used to carry installation effect, and self-centering unit 120 and sensor are set to hole measuring head 110
On.Moreover, hole measuring head 110 can drive self-centering unit 120 to stretch into the endoporus of part to be measured, self-centering unit
120 can position the center of hole measuring head 110.Sensor is used to measure the size of part endoporus to be measured.Sensor is
Main parts size for measuring diameter of bore.Self-centering unit 120 enables to hole measuring head 110 in centralized positioning standard
While true, ensure that the axis of hole measuring head 110 is overlapped with the axis of part endoporus to be measured, avoid hole measuring head 110 to certain
One direction tilts, and then detects part diameter of bore to be measured by sensor again, ensures that sensor measurement is accurate.Preferably,
Sensor is laser sensor 150, and laser sensor 150 is non-contact sensor, and the measuring cell in laser sensor 150 is not
It is fragile, moreover, the data acquisition of laser sensor 150 is rapid, substantially reduce the working time.
It is understood that the Endoporus measuring device 100 of the utility model can first lead to before stretching into part endoporus to be measured
It crosses the vision positionings such as camera or camera structure to take pictures to part to be measured, realization is accurately positioned the center of part to be measured.
Then, the hole measuring head 110 of Endoporus measuring device 100 drives self-centering unit 120 thereon and sensor to extend into again
In the endoporus of part to be measured, and the center of hole measuring head 110 is positioned by self-centering unit 120 so that endoporus is surveyed
The axis of amount head 110 is overlapped with the axis of part endoporus to be measured；After the completion of centering, pass through the sensor pair on hole measuring head 110
The size such as diameter of part endoporus to be measured measures.
The Endoporus measuring device 100 of the utility model by self-centering unit 120 to the center of hole measuring head 110 into
Row positioning so that the axis of hole measuring head 110 is overlapped with the axis of part endoporus to be measured, is then passing through hole measuring head 110
On sensor the size such as diameter etc. of endoporus is measured；Effective solution needs to manually adjust measurement head alignment vehicle at present
Wheel endoporus leads to the problem that labor intensity is big, efficiency is low, and hole measuring head can be automatically positioned by self-centering unit 120
110 center so that the axis of hole measuring head 110 is overlapped with the axis of part endoporus to be measured, without by manually adjusting to just,
It reduces labor intensity, improves the degree of automation, and then reduce failure rate, to improve measurement efficiency, while also ensuring measurement knot
The accuracy of fruit.Moreover, the Endoporus measuring device 100 of the utility model is fixed it is not necessary that wheel centralising device and wheel is separately provided
Position device, high degree of automation is easy to operate, convenient for installation and maintenance.
Exemplary, hole measuring head 110 includes disk 111 and outer cover 112, and self-centering unit 120 is installed on disk 111
On, outer cover 112 is set on disk 111, and is enclosed and set the setting of self-centering unit 120.Disk 111 is for installing self-centering machine
Structure 120 and laser sensor 150, outer cover 112 can be provide with laser sensor 150 and part self-centering unit 120.Outer cover
Setting irradiation hole on 112, the laser that laser sensor 150 emits can be broken forth and receive by irradiating hole, to realize to endoporus
The detection of diameter.It is understood that the quantity of laser sensor 150 is two, two laser sensors 150 are along same radial direction
Direction is arranged, and corresponding irradiation hole is arranged on outer cover 112.In this way, it is in detectable that two laser sensors 150, which emit laser,
Bore dia waits for that hole measuring head 110 stretches into after the completion of part endoporus to be measured and self-centering, directly acquires laser sensor 150 and counts
According to one-shot measurement can be completed.Moreover, being rotated by 90 ° second of measurement for completing same section by hole measuring head 110.Twice
The average value of survey calculation institute value is the diameter in the section, this measures the half of the absolute value of the difference of institute's value twice
The as circularity in the section.
As a kind of embodiment, self-centering unit 120 includes actuator 121, transmission component 122 and centering component
123, actuator 121 is installed on hole measuring head 110,122 drive connection actuator 121 of transmission component and centering component 123,
Centering component 123 is movably mounted on hole measuring head 110, and actuator 121 drives centering component by transmission component 122
123 overlap the axis of hole measuring head 110 with the axis of part endoporus to be measured.Actuator 121 is the dynamic of self-centering unit 120
Power source, transmission component 122 can transmit the power of actuator 121, and centering component 123 can realize hole measuring head 110
Centralized positioning.Hole measuring head 110 is extend into the endoporus of part to be measured, and actuator 121 drives transmission component 122 to move, in turn
Transmission component 122 drives centering component 123 to move so that centering component 123 is moved relative to hole measuring head 110, with internal
Hole measurement head 110 is felt relieved so that the axis of hole measuring head 110 is overlapped with the axis of part endoporus to be measured.Then, by swashing
Optical sensor 150 detects part diameter of bore to be measured, ensures that diameter of bore measurement result is accurate.Preferably, actuator 121 can be
The cylinder body of cylinder, cylinder is set on hole measuring head 110, and the external part of cylinder is then connect with transmission component 122, is passed with driving
Dynamic component 122 moves；Certainly, in the other embodiment of the utility model, actuator 121 can also be magnet, motor etc..
Exemplary, actuator 121 is set to side of the disk 111 far from outer cover 112, and transmission component 122 in axial direction wears disk
It 111 and is deep into outer cover 112 and encloses in the chamber set, centering component 123 is installed on transmission component 122, and is located at outer cover 112
In.
Further, transmission component 122 includes shaft 1222 and pivoted arm 1221, one end and the actuator 121 of pivoted arm 1221
Hinged, the other end and shaft 1222 of pivoted arm 1221 are affixed, and shaft 1222 in axial direction rotationally wears hole measuring head
110 stretch out, and centering component 123 is installed in shaft 1222.Pivoted arm 1221, which coordinates to play with shaft 1222, transmits movement
Effect, and then centering component 123 is driven to move.Exemplary, shaft 1222 in axial direction wears the disk of hole measuring head 110
111 extend into outer cover 112, installation centering component 123 in shaft 1222.Optionally, shaft 1222 is installed by bearing 1223
Occur between the disk 111 of hole measuring head 110 when shaft 1222 on hole measuring head 110, can be avoided to rotate in this way
Interference ensures that 1222 stability of rotation of shaft is reliable, and then ensures that centering component 123 is felt relieved accurately.
Still further, centering component 123 includes turntable 1231 and multiple is slidably set on hole measuring head 110
Mandril 1232, turntable 1231 are installed in shaft 1222, and the outer profile of turntable 1231 has multiple equally distributed protrusions, multiple
Mandril 1232 is corresponding with multiple protrusions respectively.Actuator 121 drives shaft 1222 to rotate and drives turntable by pivoted arm 1221
The protrusion of 1231 rotations, turntable 1231 is in contact with mandril 1232 and the stretching of mandril 1232 is made to abut to the inner wall of part endoporus to be measured
On.Multiple protrusions on turntable 1231 are the identical curve of round trip, are recessed portion between adjacent two protrusions.When
When centering component 123 does not feel relieved to part to be measured, the end of mandril 1232 is located in the recessed portion of turntable 1231；Centering component
When 123 pairs of parts to be measured are felt relieved, actuator 121 drives shaft 1222 to rotate by pivoted arm 1221, and then shaft 1222 drives
Turntable 1231 rotates, since the end of mandril 1232 is abutted with the outer profile of turntable 1231 always, mandril 1232 and turntable 1231
Contact position by the recessed portion of turntable 1231 become protrusion, in the process turntable 1231 can gradually by mandril 1232 outward push up
Go out, until the other end of mandril 1232 is abutted with the inner wall of part endoporus to be measured, ensures that hole measuring head 110 is accurate in centralized positioning
While so that the axis of hole measuring head 110 is overlapped with the axis of part endoporus to be measured, avoids hole measuring head 110 to a certain
Lateral deviation is oblique.It is understood that being keyed by connecting between turntable 1231 and shaft 1222 or being interference fitted connection etc..
Fig. 3 is that Endoporus measuring device 100 removes the main structure diagram after outer cover 112, to show that mandril 1232 abuts
The position of part endoporus to be measured.Optionally, the quantity of mandril 1232 is 2n, and wherein n >=2,2n mandril 1232 is uniformly distributed, phase
There is default spacing, phase between being projected on the axial direction of shaft 1222 in adjacent two ends of the mandril 1232 far from turntable 1231
To two ends of the mandril 1232 far from turntable 1231 coincidence is projected on the axial direction of shaft 1222.I.e. two neighboring top
The distance of bar 1232 end far from turntable 1231 to disk 111 is different, and two opposite mandrils 1232 are far from turntable 1231
The distance of end to disk 111 is identical.That is, the throwing of the outer end vertical direction shown in Fig. 3 of adjacent mandril 1232
Shadow is located on the section of different height, and the projection of the outer end vertical direction shown in Fig. 3 of opposite mandril 1232 is positioned at same
On the section of height.It can ensure hole measuring head 110 in this way while centralized positioning is accurate, the axis of hole measuring head 110
Line is overlapped with the axis of 200 endoporus of part to be measured, avoids hole measuring head 110 oblique to a certain lateral deviation.Exemplary, turntable 1231 is convex
The quantity risen is four, and four protrusions are uniformly distributed, and the quantity of corresponding mandril 1232 is also four, and one by one with four protrusions
It is correspondingly arranged.The positions a and b shown in Fig. 3 are distinguished in two groups of ends of mandril 1232, a, b two positions not on same section, with
Ensure that the axis of hole measuring head 110 is overlapped with the axis of part endoporus to be measured, avoids hole measuring head 110 oblique to a certain lateral deviation.
When 1231 protrusion of turntable jacks up mandril 1232, the other end of mandril 1232 is enabled to stretch out, and supported with the endoporus of part to be measured
It connects, the end of four mandrils 1232 is held out against by the positions a and b respectively.Optionally, multiple through-holes, Duo Getong are opened up on outer cover 112
Hole corresponds to multiple mandrils 1232 respectively, and the rotation of turntable 1231 makes mandril 1232 stretch out through-hole, and is supported with the inner wall of part endoporus to be measured
It connects.
Referring to Fig. 1 to Fig. 3, optionally, line slide rail 1233, mandril 1232 are set on the disk 111 of hole measuring head 110
It is slidably disposed on line slide rail 1233.Mandril 1232 can be moved in a straight line along line slide rail 1233, ensure mandril
1232 movement locus is accurate, and then ensures that centering is accurate and reliable.Again optionally, centering component 123 further includes idler wheel 1234, rolling
Wheel 1234 is set on one end that mandril 1232 is in contact with protrusion.Idler wheel 1234 can reduce mandril 1232 and turntable 1231 it
Between excessive wear, ensure performance.Again optionally, centering component 123 further includes draw springs 1235, draw springs
1235 one end is connected on mandril 1232, and the other end of draw springs 1235 is connected to the disk 111 of hole measuring head 110
On.Draw springs 1235 generate drawing force always so that mandril 1232 is connected to turntable 1231 by idler wheel 1234 always
On outer profile.Exemplary, draw springs 1235 are extension spring.
As a kind of embodiment, Endoporus measuring device 100 further includes connecting seat 130 and compensation mechanism 140, connecting seat
130 are installed on the disk 111 of hole measuring head 110, and compensation device is installed on connecting seat 130, compensation mechanism 140 be used for
Extraneous control device is connected such as the multi-axis robot with multiple degree of freedom.Compensation mechanism 140 can freely swing so that endoporus
The axis of measurement head 110 is overlapped with the interior axially bored line height of part to be measured, avoids the end of multi-axis robot during centralized positioning
Hold the misaligned formation negative direction active force of axis of mechanical arm and hole measuring head 110 so that axle center registration is high, failure rate
It is low.
Further, compensation mechanism 140 includes connecting flange 141, rotary part 142 and multiple compensation elastic components 143, is connected
Acting flange 141 is connected on the end mechanical arm of the extraneous control device such as multi-axis robot with multiple degree of freedom, rotating part
One end of part 142 is connected to connecting flange 141, and the other end of rotary part 142 is connect with connecting seat 130, multiple compensation elasticity
Part 143 is in axial direction uniformly distributed between connecting flange 141 and connecting seat 130.Rotary part 142 enables to connecting seat
130 and hole measuring head 110 thereon can freely swing, while passing through multiple compensation elastic components 143 and limiting connecting seats 130
Amplitude of fluctuation so that hole measuring head 110 is in quick condition, and is finely tuned and protected according to the centering state of self-centering unit 120
The axis of card hole measuring head 110 is overlapped with the axis of part endoporus to be measured.Exemplary, the quantity of compensation elastic component 143 is six,
And compensation elastic component 143 is compressed spring or rubber spring.Moreover, rotary part 142 can be universal joint, swivel bearing or
Other can realize the structure of rotatable connection.
Still further, compensation mechanism 140 further includes multiple adjustable end caps 144, multiple adjustable end caps 144 are respectively arranged at
Compensate the both ends of elastic component 143.Adjustable end cap 144 can finely tune the precompression of corresponding compensation elastic component 143, to ensure endoporus
Measurement head 110 is in vertical state.
As a kind of embodiment, Endoporus measuring device 100 further includes excessive flange, and Endoporus measuring device 100 passes through
Excessive flange is installed on indirectly on the extraneous control device such as multi-axis robot with multiple degree of freedom；I.e. excessive flange and compensation
The connecting flange 141 of mechanism 140 is connected, and realizes that hole measuring head 110 and self-centering unit 120 are installed on multi-axis robot
End mechanical arm on.Moreover, vision positioning structure is also installed on excessive flange.
Moreover, 112 outer diameter of outer cover that includes of hole measuring head 110 is smaller 5mm than the bore inner diameter of part to be measured or so so that interior
The endoporus that hole measurement head 110 stretches into part to be measured is easy, and after stretching into part endoporus to be measured, the actuator 121 of self-centering unit 120 is dynamic
Make, and so that turntable 1231 is rotated by the transmission of pivoted arm 1221 and shaft 1222, and then the protrusion of turntable 1231 pushes pressure simultaneously
The inner wall that part endoporus to be measured is tightly held out against in the mandril 1232 of 1231 outer round surface of turntable, exists since 1232 end of mandril holds out against position
On the position a and b of two sections, it is ensured that hole measuring head 110 is while centralized positioning is accurate so that hole measuring head
110 axis is overlapped with axially bored line in part to be measured, and hole measuring head 110 is avoided to be tilted to a direction.In centralized positioning process
Middle the advantages of being freely swung using compensation mechanism 140, realizes that 110 axle center of hole measuring head and the axle center of part endoporus to be measured are high
Degree overlaps, and it is misaligned to avoid the end mechanical arm of multi-axis robot and 110 axis of hole measuring head during centralized positioning
Radial reaction force is formed, axle center registration is high, and failure rate is low.
Then, Endoporus measuring device 100 along diametric two laser sensors 150 of same by waiting for endoporus survey
Amount head 110 stretches into after the completion of part endoporus self-centering to be measured, and primary survey can be completed in the data for directly acquiring laser sensor 150
Amount.Moreover, being rotated by 90 ° second of measurement for completing same section by hole measuring head 110.Survey calculation institute value twice
Average value be the section diameter, this half for measuring the absolute value of the difference of institute's value twice is the circle in the section
Degree.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the record scope of this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (12)
1. a kind of Endoporus measuring device, which is characterized in that the Endoporus measuring device is used to carry out the size of part endoporus to be measured
It measures, the Endoporus measuring device includes：
Hole measuring head；
Self-centering unit is set on the hole measuring head, and the hole measuring head can drive the self-centering machine
Structure stretches into the endoporus of the part to be measured, and is determined the center of the hole measuring head by the self-centering unit
Position；And
Sensor is set on the hole measuring head, the size for measuring the part endoporus to be measured.
2. Endoporus measuring device according to claim 1, which is characterized in that the self-centering unit include actuator,
Transmission component and centering component, the actuator are installed on the hole measuring head, described in the transmission component drive connection
Actuator and the centering component, the centering component are movably mounted on the hole measuring head, and the actuator is logical
Crossing the transmission component drives the centering component by the axis weight of the axis of the hole measuring head and the part endoporus to be measured
It closes.
3. Endoporus measuring device according to claim 2, which is characterized in that the transmission component includes shaft and pivoted arm,
One end of the pivoted arm is hinged with the actuator, and the other end of the pivoted arm and the shaft are affixed, and the shaft is in an axial direction
Direction rotationally wears the hole measuring head and stretches out, and the centering component is installed in the shaft.
4. Endoporus measuring device according to claim 3, which is characterized in that the centering component include turntable and it is multiple can
The mandril being slideably positioned on the hole measuring head, the turntable are installed in the shaft, the outer profile tool of the turntable
There are multiple equally distributed protrusions, multiple mandrils corresponding with multiple protrusions respectively；
The actuator drives the shaft rotate and the turntable is driven to rotate by the pivoted arm, the protrusion of the turntable and
The mandril is in contact and the mandril is made to stretch out and abuts to the inner wall of the part endoporus to be measured.
5. Endoporus measuring device according to claim 4, which is characterized in that the quantity of the mandril is 2n, wherein n >=
2,2n mandrils are uniformly distributed, axial direction of two neighboring end of the mandril far from the turntable in the shaft
There is default spacing between upper projection, opposite two ends of the mandril far from the turntable are in the axial direction side of the shaft
Projection overlaps upwards.
6. Endoporus measuring device according to claim 4, which is characterized in that straight line is arranged on the hole measuring head and slides
Rail, the mandril are slidably disposed on the line slide rail.
7. Endoporus measuring device according to claim 4, which is characterized in that the centering component further includes idler wheel, described
Idler wheel is set on one end that the mandril is in contact with the protrusion.
8. Endoporus measuring device according to claim 4, which is characterized in that the centering component further includes tensile elasticity
One end of part, the draw springs is connected on the mandril, and the other end of the draw springs is connected to the endoporus
In measurement head.
9. according to claim 1 to 8 any one of them Endoporus measuring device, which is characterized in that the Endoporus measuring device is also
Including connecting seat and compensation mechanism, the connecting seat is installed on the hole measuring head, and the compensation device is installed on described
On connecting seat, the compensation mechanism is for adjusting the axis of the hole measuring head and overlapping for the axis of the part endoporus to be measured
Degree.
10. Endoporus measuring device according to claim 9, which is characterized in that the compensation mechanism includes connecting flange, rotation
Rotation member and multiple compensation elastic components, one end of the rotary part are connected to the connecting flange, the rotary part it is another
One end connects the connecting seat, and multiple compensation elastic components are in axial direction uniformly distributed in the connecting flange and the company
Between joint chair.
11. Endoporus measuring device according to claim 10, which is characterized in that the compensation mechanism further includes multiple adjustable
End cap, multiple adjustable end caps are respectively arranged at the both ends of the compensation elastic component.
12. Endoporus measuring device according to claim 4, which is characterized in that the hole measuring head includes disk and outer
Cover, the self-centering unit is installed on the disk, and the outer cover is set on the disk, and enclose set it is described automatic fixed
Concentric mechanism is arranged；
Multiple through-holes are opened up on the outer cover, multiple through-holes correspond to multiple mandrils respectively, and the turntable rotation makes institute
It states mandril and stretches out the through-hole, and abutted with the inner wall of the part endoporus to be measured；
The sensor is laser sensor.
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| CN201820107133.2U CN207866199U (en) | 2018-01-22 | 2018-01-22 | Endoporus measuring device |
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| CN201820107133.2U CN207866199U (en) | 2018-01-22 | 2018-01-22 | Endoporus measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376647A (en) * | 2021-06-08 | 2021-09-10 | 东北大学 | Blast hole measurement auxiliary equipment and use method thereof |
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2018
- 2018-01-22 CN CN201820107133.2U patent/CN207866199U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376647A (en) * | 2021-06-08 | 2021-09-10 | 东北大学 | Blast hole measurement auxiliary equipment and use method thereof |
| CN113376647B (en) * | 2021-06-08 | 2024-04-26 | 东北大学 | Blast hole measurement auxiliary equipment and application method thereof |
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