CN108458650A - A kind of bearing inner race track groove measurement device - Google Patents
A kind of bearing inner race track groove measurement device Download PDFInfo
- Publication number
- CN108458650A CN108458650A CN201810550537.3A CN201810550537A CN108458650A CN 108458650 A CN108458650 A CN 108458650A CN 201810550537 A CN201810550537 A CN 201810550537A CN 108458650 A CN108458650 A CN 108458650A
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- China
- Prior art keywords
- track groove
- guiding axis
- external member
- ball
- bushing
- Prior art date
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
-
- 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
- G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
-
- 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
- G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
Abstract
The invention discloses a kind of bearing inner race track groove measurement devices, slide plate, elastic component, size detecting device and a pair of of size gauge head are measured including actuator, connecting bottom board, a pair of side plates, at least two set of first ball bushing guiding axis external member, track groove, side plate is fixed on connecting bottom board, and the first ball bushing guiding axis external member is arranged between the side plates；Track groove measures slide plate and is arranged in the first ball bushing guiding axis external member, size gauge head is separately positioned on track groove and measures on slide plate, size detecting device setting is measured in track groove on slide plate, elastic component measures slide plate with track groove respectively and fixes, actuator is drivingly connected bottom plate vertical shift, also sets up track groove position detecting mechanism.By track groove dimensional measurement, with position, measurement is combined the present invention, be can detect two kinds of data by single stepping, is substantially increased detection efficiency, one-shot measurement two values, and is judged, ensure that the reliability of testee detection, greatly reduce false drop rate.
Description
Technical field
The present invention relates to bearing inner race detection field, more particularly to a kind of bearing inner race track groove measurement device.
Background technology
In bearing ring turnery processing, the dimensional accuracy of track groove, track groove positional precision directly affects bearing ring heat
The surplus of track groove smooth grinding, position, shape equally accurate after processing, have significant impact to the quality of final bearing.Generally can only
By ensureing by artificial full inspection, a large amount of labor hour is needed in large-scale production.
Invention content
For the above defect of the existing technology, it is a primary object of the present invention to overcome the deficiencies in the prior art it
Place, discloses a kind of bearing inner race track groove measurement device, including actuator, connecting bottom board, a pair of side plates, at least two set first
Ball bushing guiding axis external member, track groove measure slide plate, elastic component, size detecting device and a pair of of size gauge head, wherein a pair of
The side plate is fixed on the connecting bottom board, and the first ball bushing guiding axis external member is arranged between the side plate, phase
Adjacent first ball bushing guiding axis external member is arranged in parallel；A pair of track groove measures slide plate and is arranged in first ball
It in bushing guiding axis external member, and is independently moved along the first ball bushing guiding axis external member, a pair of size gauge head point
It is not arranged and is measured on slide plate in the track groove, and the distance between two pieces of described size gauge heads is less than testee track groove
Diameter, size detecting device setting measures on slide plate in the track groove, measured for measuring a pair of track groove
Two track grooves are measured slide plate in the case of not by external force always in most by the distance between slide plate, the elastic component
Small distance, the actuator drive the connecting bottom board vertical shift.
Further, the first ball bushing guiding axis external member includes the first guiding axis, two set of first bushing and two sets
First ball, the setting that two suits of first bushings are slided by first ball is in first guiding axis
On, the both ends of first guiding axis are fixed with the side plate of both sides respectively.
Further, the first ball bushing guiding axis external member is provided with four groups, and parallel setting is in the side
Between plate.
Further, it is 2mm that two track grooves, which measure the relative displacement maximum distance between slide plate,.
Further, the size detecting device includes stop screw and and sensor, the stop screw and the biography
Sensor is separately positioned on a pair of track groove and measures on slide plate.
Further, the sensor is high-precision contact digital sensor.
Further, further include track groove position detecting mechanism, the track groove position detecting mechanism is arranged in the company
It connects on bottom plate, for measuring testee track groove to the distance of side.
The track groove position detecting mechanism includes holder bottom plate, holder, at least two set of second ball bushing guideway
Part, track groove position finding slide plate, at least two sets of third ball bushing guiding axis external members, sensor stand, position detecting devices
With position gauge head, the holder bottom plate is arranged on the connecting bottom board, and the second ball bushing guiding axis external member setting exists
Between the holder bottom plate and the holder, the adjacent second ball bushing guiding axis external member is arranged in parallel；
The third ball bushing guiding axis external member is arranged by the track groove position finding slide plate in second rolling
In bead sleeve part guiding axis external member, the sensor stand and the position gauge head are separately positioned on the third ball bushing and are oriented to
The both ends of sleeve member, the adjacent third ball bushing guiding axis external member are arranged in parallel；
The third ball bushing guiding axis external member is along the second ball bushing guiding axis external member vertical shift, institute's rheme
It sets gauge head to move horizontally along the third ball bushing guiding axis external member, the position detecting device is arranged in the sensor branch
On frame, distance is moved horizontally for detecting the position gauge head, the position gauge head is arc-shaped with testee contact surface, and
And the circular arc of position gauge head is less than the circular arc of testee track groove.
Further, the second ball bushing guiding axis external member includes the second guiding axis, spring, the second bushing and second
Ball, second bushing is sleeved on by second ball on second guiding axis, and the spring
It is sleeved on the second guiding axis, one end is contacted with second bushing, and the other end and the holder contacts baseplate, are always institute
It states the second bushing and downward thrust is provided.
Further, the third ball bushing guiding axis external member includes third guiding axis, stop collar, third bushing and
Three balls, the third bushing are sleeved on by the third ball on the third guiding axis, the stop collar
Setting two, is separately positioned on the both ends of the third bushing and is fixed on the third guiding axis, described for limiting
The displacement distance of third bushing.
Further, the position detecting device includes digital Eddy current displacement sensor and measuring block, the number
Formula Eddy current displacement sensor is arranged on the sensor stand, and the measuring block setting is slided in the track groove position finding
On plate, the digital Eddy current displacement sensor measures it and arrives the distance between described measuring block.
The advantageous effect that the present invention obtains：
(1) track groove dimensional measurement and position measurement are combined together by the present invention, pass through single stepping i.e. detectable two
Kind data, substantially increase detection efficiency, meanwhile, one-shot measurement two values, and judged, it ensure that measured object physical examination
The reliability of survey, greatly reduces false drop rate.
(2) cooperation of bushing, ball and guiding axis, compact-sized, precision is high；And friction coefficient is minimum, and it is special
The raising of repetitive positioning accuracy when not being conducive to measure.
(3) present invention is driven using cylinder, using the minimum ball bushing guiding axis external member of friction coefficient and easy to detect
The high-precision sensor of 1 μm of precision or more.Has many advantages, such as measurement accuracy height, the measurement period is short compact-sized, in cooperation automatically
Material/discharge device can realize the automatic detection of track groove size and position.It is particularly suitable for oneself when bearing ring mass produces
Dynamic on-line checking.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of bearing inner race track groove measurement device of the present invention；
Fig. 2 is the structural schematic diagram of the first ball bushing guiding axis external member；
Fig. 3 is state diagram when size gauge head measures；
Fig. 4 is the structural schematic diagram of track groove position detecting mechanism；
Fig. 5 is the structural schematic diagram of the second ball bushing guiding axis external member；
Fig. 6 is the structural schematic diagram of third ball bushing guiding axis external member；
Fig. 7 is track groove position detection schematic diagram；
Reference numeral is as follows：
1, actuator, 2, connecting bottom board, 3, side plate, the 4, first ball bushing guiding axis external member, 5, track groove measure slide plate,
6, elastic component, 7, size detecting device, 8, size gauge head, 9, track groove position detecting mechanism, the 41, first guiding axis, 42, first
Bushing, the 43, first ball, 71, stop screw, 72, sensor, 91, holder bottom plate, 92, holder, the 93, second ball lining
Cover guiding axis external member, 94, track groove position finding slide plate, 95, third ball bushing guiding axis condition, 96, sensor stand,
97, position detecting device, 98, position gauge head, the 931, second guiding axis, 932, spring, 933 second bushings, the 934, second ball
Axle sleeve, 951, third guiding axis, 952, stop collar, 953, third bushing, 954, third ball, 971, digital eddy current
Displacement sensor, 972, measuring block.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, right with reference to the accompanying drawings and embodiments
The present invention is described in further detail.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to
It is of the invention in limiting.
A kind of bearing inner race track groove measurement device of the present invention, as shown in Figure 1, actuator 1, connecting bottom board 2, an offside
Plate 3, at least two set of first ball bushing guiding axis external member 4, track groove measure slide plate 5, elastic component 6, size detecting device 7 and one
To size gauge head 8, wherein a pair of side plates 3 is fixed on connecting bottom board 2, and the first ball bushing guiding axis external member 4 is arranged in side plate
Between, adjacent first ball bushing guiding axis external member 4 is arranged in parallel；Preferably, the first ball bushing guiding axis external member 4 is set
Four groups are equipped with, and is arranged in parallel between side plate 3.A pair of of track groove measures slide plate 5 and is arranged in the first ball bushing guiding axis
It in external member 4, and is independently moved along the first ball bushing guiding axis external member 4, a pair of of size gauge head 8 is separately positioned on track groove survey
Determine on slide plate 5, and the distance between two block size gauge heads 8 are less than the diameter of testee track groove；Preferably, two block size
The distance between gauge head 8 is less than the 0.4-0.5mm of testee track groove size, is further ensured that the validity of measurement.Size
The setting of detection device 7 is measured in track groove on slide plate 5, and the distance between slide plate 5 is measured for measuring a pair of of track groove；Wherein,
Size detecting device 7 includes stop screw 71 and sensor 72, and stop screw 71 and sensor 72 are separately positioned on a pair of of raceway
Slot measures on slide plate 5, and sensor 72 can be high-precision contact digital sensor, and precision is 1 μm, high-precision contact number
Word sensor contacts always with stop screw 71, is measured to the distance between its by contact method.Elastic component 6 is by two
A track groove measures slide plate 5 and is in minimum range always in the case of not by external force, and elastic component 6 can be spring, spring
Both ends measure slide plate 5 with two pieces of track grooves respectively and fix, and by the restoring force of spring, two pieces of track grooves are measured slide plate 5 always
In minimum range, when by external force, two pieces of track grooves measure the distance between slide plate 5 and increase, when losing external force, two pieces are rolled
Road slot measures slide plate 5 and is returned to minimum distance position.Actuator 1 can be crossed roller slider cylinder, be drivingly connected bottom plate 2
Vertical shift.The cylinder has good repetitive positioning accuracy, while compact-sized, and can reduce measurement using the cylinder misses
Difference.
As shown in Fig. 2, the first ball bushing guiding axis external member 4 includes 41, two set of first bushing 42 and two of the first guiding axis
Cover the first ball 43, the setting that two set of first bushing 42 is slided by the first ball 43 on the first guiding axis 41,
The both ends of first guiding axis 41 are fixed with side plate 3 respectively.Two pieces of track grooves measure slide plate 5 and are separately positioned on the first bushing 42,
Track groove measures slide plate 5 and can either be slided between two blocks of side plates 3 simultaneously, can also individually slide.Preferably, two track grooves
The relative displacement distance measured between slide plate 3 is up to 2mm.By the limitation to sliding distance, can to testee not
While needing to be accurately positioned, ensures that object to be detected is within the scope of test position, also ensure measurement accuracy；Simultaneously
The validity that ensure that 7 determination data of size detecting device prevents the measurement range of oversize detection device 7, is caused to it
Damage.
In conjunction with shown in Fig. 1-3, the step of track groove size detection, is as follows：
This equipment is mounted on slideway, testee slides into test position, by cylinder by the side of itself and slideway
Wall is close to, and a reference plane of the side wall as detection, actuator 1 is drivingly connected bottom plate 2 and moves down, and two size gauge heads 8 are supportted
It opens, size detecting device 7 detects measured value, and when measured value is in setting range, then product is identified as non-defective unit, when
More than setting range, then product is identified as defective products.
As shown in figs. 1 and 4, measurement device of the invention further includes track groove position detecting mechanism 9, track groove position detection
Mechanism 9 is arranged on connecting bottom board 2, for measuring testee track groove to the distance of side, to detect track groove in bearing
Relative position on circle.
Track groove position detecting mechanism 9 includes holder bottom plate 91, holder 92, at least two set of second ball bushing guideway
Part 93, track groove position finding slide plate 94, at least two sets of third ball bushing guiding axis external members 95, sensor stand 96, positions
Detection device 97 and position gauge head 98, holder bottom plate 91 are arranged on connecting bottom board 2, and the second ball bushing guiding axis external member 93 is set
It sets between holder bottom plate 91 and holder 92, adjacent second ball bushing guiding axis external member 93 is arranged in parallel, track groove position
It sets and measures the setting of slide plate 94 in the second ball bushing guiding axis external member 92, and can be along the second ball bushing guiding axis external member
92 guide direction vertical shift；Third ball bushing guiding axis external member 95 is arranged on track groove position finding slide plate 94, passes
Sensor bracket 96 and position gauge head 98 are separately positioned on the both ends of third ball bushing guiding axis external member 95, adjacent third ball lining
Guiding axis external member is covered, 9 is arranged in parallel, and position gauge head 98 is moved along the guide direction of third ball bushing guiding axis external member 95
It is dynamic；The guide direction of second bushing guiding axis external member 93 is mutually hung down with the guide direction of third ball bushing guiding axis external member 95
Directly；That is, third ball bushing guiding axis external member 95 is along 93 vertical shift of the second ball bushing guiding axis external member, 98 edge of position gauge head
Third ball bushing guiding axis external member 95 moves horizontally.Position detecting device 97 is arranged on sensor stand 96, for detecting
Position gauge head 98 moves horizontally distance；Position detecting device 97 includes digital Eddy current displacement sensor 971 and measuring block
972, precision is 0.14 μm, and digital Eddy current displacement sensor 971 is arranged on sensor stand 96, and measuring block 972 is set
Set on track groove position finding slide plate 94, digital Eddy current displacement sensor 971 measure its between measuring block 972 away from
From the distance that as position gauge head 98 moves horizontally.Due to measure when need not be contacted with measuring block 972, ensure gauge head with
It is not influenced by other power when testee track groove arc contact, maximum possible ensures that gauge head circular arc is overlapped with material track groove.
Position gauge head 98 is arc-shaped with testee contact surface, and the circular arc of position gauge head 98 is less than the circle of testee track groove
Arc.Preferably, the arc radius of position gauge head 98 and the small 0.05mm of track groove arc radius.It substantially completely can be with when ensureing to measure
Track groove circular arc overlaps, and improves measurement accuracy.
As shown in figure 5, the second ball bushing guiding axis external member 93 includes the second guiding axis 931, spring 932, the second bushing
933 and second ball 934, the second bushing 933 be sleeved on the second guiding axis 931 by the second ball 934, and
Spring 932 is sleeved on the second guiding axis 931, and one end is contacted with the second bushing 933, and the other end is contacted with holder bottom plate 91,
It is always that the second bushing 933 provides downward thrust.When pushing the second bushing 933 to move up, spring 932 is shunk, when the
When two bushings 933 lose thrust, by spring 932 and its own gravity, the second bushing 933 moves down.
As shown in fig. 6, third ball bushing guiding axis external member 95 includes third guiding axis 951, stop collar 952, third lining
Set 953 and third ball 954, third bushing 953 are sleeved on by third ball 954 on third guiding axis 951, are limited
952 setting two of position set, is separately positioned on the both ends of third bushing 953 and is fixed on third guiding axis 951, for limiting
The displacement distance of third bushing 953, it is preferred that the moving range of position gauge head 98 be 0.5-1mm, with ensure position gauge head 98 with
The contact position of measured material.
In conjunction with shown in Fig. 1,4-7, track groove position detecting mechanism 9 when in use, when testee is in below the device
When actuator 1 be drivingly connected bottom plate 2 move down, since testee is close to slideway one side wall, testee remains stationary as；Actuating
It is always that gauge head carries by the effect of spring 932 in the second ball bushing guiding axis external member 93 after device 1 is moved to range
For a downward pressure, position gauge head 98 is contacted with track groove, due to position gauge head 98 with track groove be it is arc-shaped, because
This, the downward thrust of position gauge head 98 is changed into horizontal thrust due to contact surface, and activation point gauge head 98 is horizontal to be moved
Dynamic, third guiding axis 951 is moved horizontally along third bushing 953, and then is changed digital Eddy current displacement sensor 971 and measured
The distance between block 972 measures the measured value, which is compared with default value, when in default value range
Interior, then product is identified as qualification, conversely, then unqualified.
In conjunction with shown in Fig. 1-7, testee is tightly attached in the one side wall of slideway, and actuator 1 is drivingly connected bottom plate 2 and moves down
When, size gauge head 8 and position gauge head 98 move down simultaneously, while size gauge head 8 is softened, position gauge head 98 and testee
Contact, switchs to the thrust that pushing position gauge head 98 moves horizontally, while measuring the diameter dimension of testee by downward pressure
With track groove the location of on testee.When measurement two measured values within a preset range, then product is qualified,
Conversely, only one numerical value is not within a preset range, then product is judged as unqualified.
The advantageous effect that the present invention obtains：
(1) track groove dimensional measurement and position measurement are combined together by the present invention, pass through single stepping i.e. detectable two
Kind data, substantially increase detection efficiency, meanwhile, one-shot measurement two values, and judged, it ensure that measured object physical examination
The reliability of survey, greatly reduces false drop rate.
(2) cooperation of bushing, ball and guiding axis, compact-sized, precision is high；And friction coefficient is minimum, and it is special
The raising of repetitive positioning accuracy when not being conducive to measure.
(3) present invention is driven using cylinder, using the minimum ball bushing guiding axis external member of friction coefficient and easy to detect
The high-precision sensor of 1 μm of precision or more.Has many advantages, such as measurement accuracy height, the measurement period is short compact-sized, in cooperation automatically
Material/discharge device can realize the automatic detection of track groove size and position.It is particularly suitable for oneself when bearing ring mass produces
Dynamic on-line checking.
The foregoing is merely a prefered embodiment of the invention, practical range not for the purpose of limiting the invention；If not departing from this
The spirit and scope of invention, modify or equivalently replace the present invention, and should all cover the protection in the claims in the present invention
In range.
Claims (10)
1. a kind of bearing inner race track groove measurement device, which is characterized in that including actuator, connecting bottom board, a pair of side plates, at least
Two set of first ball bushing guiding axis external member, track groove measure slide plate, elastic component, size detecting device and a pair of of size gauge head,
Wherein, a pair of side plate is fixed on the connecting bottom board, and the first ball bushing guiding axis external member is arranged in the side
Between plate, adjacent first ball bushing guiding axis external member is arranged in parallel；A pair of track groove measures slide plate and is arranged in institute
It states in the first ball bushing guiding axis external member, and is independently moved along the first ball bushing guiding axis external member, described in a pair
Size gauge head is separately positioned on the track groove and measures on slide plate, and the distance between two pieces of described size gauge heads are less than tested
The diameter of object track groove, the size detecting device setting is measured in the track groove on slide plate, for measuring described in a pair
Track groove measures the distance between slide plate, and two track grooves are measured slide plate in the case of not by external force by the elastic component
Always it is in minimum range, the actuator drives the connecting bottom board vertical shift.
2. a kind of bearing inner race track groove measurement device according to claim 1, which is characterized in that the first ball lining
It includes the first guiding axis, two set of first bushing and two set of first ball to cover guiding axis external member, and two suits of first bushings are logical
The setting of first ball sliding is crossed on first guiding axis, the both ends of first guiding axis respectively with both sides
Side plate fix.
3. a kind of bearing inner race track groove measurement device according to claim 1, which is characterized in that the first ball lining
Set guiding axis external member is provided with four groups, and parallel setting is between the side plate.
4. a kind of bearing inner race track groove measurement device according to claim 1, which is characterized in that two track grooves
It is 2mm to measure the relative displacement maximum distance between slide plate.
5. a kind of bearing inner race track groove measurement device according to claim 1, which is characterized in that the size detection dress
It sets including stop screw and is separately positioned on a pair of track groove with sensor, the stop screw and the sensor and measures
On slide plate.
6. a kind of bearing inner race track groove measurement device according to claim 5, which is characterized in that the sensor is height
Precision contact digital sensor.
7. a kind of bearing inner race track groove measurement device according to claim 1, which is characterized in that further include track groove position
Testing agency is set, the track groove position detecting mechanism is arranged on the connecting bottom board, for measuring testee track groove
To the distance of side.
The track groove position detecting mechanism includes holder bottom plate, holder, at least two set of second ball bushing guiding axis external member, rolling
Road groove location measures slide plate, at least two sets of third ball bushing guiding axis external members, sensor stand, position detecting device and position
Gauge head, the holder bottom plate are arranged on the connecting bottom board, and the second ball bushing guiding axis external member is arranged in the branch
Between frame bottom plate and the holder, the adjacent second ball bushing guiding axis external member is arranged in parallel；
The third ball bushing guiding axis external member is arranged by the track groove position finding slide plate in second ball sleeve
In part guiding axis external member, the sensor stand and the position gauge head are separately positioned on the third ball bushing guideway
The both ends of part, the adjacent third ball bushing guiding axis external member are arranged in parallel；
The third ball bushing guiding axis external member is surveyed along the second ball bushing guiding axis external member vertical shift, the position
Head is moved horizontally along the third ball bushing guiding axis external member, and the position detecting device is arranged in the sensor stand
On, distance is moved horizontally for detecting the position gauge head, the position gauge head is arc-shaped with testee contact surface, and
The circular arc of the position gauge head is less than the circular arc of testee track groove.
8. a kind of bearing inner race track groove measurement device according to claim 7, which is characterized in that the second ball lining
It includes the second guiding axis, spring, the second bushing and the second ball to cover guiding axis external member, and second bushing passes through described the
Two balls are sleeved on second guiding axis, and the spring pocket is on the second guiding axis, one end with it is described
Second bushing contacts, and the other end and the holder contacts baseplate, are always that second bushing provides downward thrust.
9. a kind of bearing inner race track groove measurement device according to claim 7, which is characterized in that the third ball lining
Set guiding axis external member includes third guiding axis, stop collar, third bushing and third ball, and the third bushing passes through described
Third ball is sleeved on the third guiding axis, and the stop collar is arranged two, is separately positioned on the third bushing
Both ends and be fixed on the third guiding axis, the displacement distance for limiting the third bushing.
10. a kind of bearing inner race track groove measurement device according to claim 7, which is characterized in that the position detection
Device includes digital Eddy current displacement sensor and measuring block, and the digital Eddy current displacement sensor is arranged in the biography
On sensor bracket, the measuring block is arranged on the track groove position finding slide plate, the digital eddy current displacement sensing
Device measures it and arrives the distance between described measuring block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550537.3A CN108458650B (en) | 2018-05-31 | 2018-05-31 | Bearing inner race raceway groove measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550537.3A CN108458650B (en) | 2018-05-31 | 2018-05-31 | Bearing inner race raceway groove measuring device |
Publications (2)
| Publication Number | Publication Date |
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| CN108458650A true CN108458650A (en) | 2018-08-28 |
| CN108458650B CN108458650B (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810550537.3A Active CN108458650B (en) | 2018-05-31 | 2018-05-31 | Bearing inner race raceway groove measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648302A (en) * | 2018-12-25 | 2019-04-19 | 苏州市瑞昌机电工程有限公司 | A kind of automatic card-loading spring and detection device |
| CN114777704A (en) * | 2022-05-07 | 2022-07-22 | 西安理工大学 | Slider raceway size detection device |
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