CN108458650B - Bearing inner race raceway groove measuring device - Google Patents
Bearing inner race raceway groove measuring device Download PDFInfo
- Publication number
- CN108458650B CN108458650B CN201810550537.3A CN201810550537A CN108458650B CN 108458650 B CN108458650 B CN 108458650B CN 201810550537 A CN201810550537 A CN 201810550537A CN 108458650 B CN108458650 B CN 108458650B
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- guide shaft
- raceway groove
- ball
- measuring
- ball bushing
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention discloses a bearing inner ring raceway groove measuring device which comprises an actuator, a connecting bottom plate, a pair of side plates, at least two sets of first ball bushing guide shaft sleeve pieces, raceway groove measuring sliding plates, elastic pieces, a size detecting device and a pair of size measuring heads, wherein the side plates are fixed on the connecting bottom plate, and the first ball bushing guide shaft sleeve pieces are arranged between the side plates; the raceway groove measuring slide plate is arranged on the first ball bushing guide shaft sleeve member, the size measuring heads are respectively arranged on the raceway groove measuring slide plate, the size detecting device is arranged on the raceway groove measuring slide plate, the elastic piece is respectively fixed with the raceway groove measuring slide plate, the actuator drives the connecting bottom plate to vertically move, and the raceway groove position detecting mechanism is further arranged. The invention combines the measurement of the size of the raceway groove with the measurement of the position, can detect two kinds of data through one step of operation, greatly improves the detection efficiency, measures two values at one time, judges, ensures the reliability of the detection of the detected object, and greatly reduces the false detection rate.
Description
Technical Field
The invention relates to the field of bearing inner ring detection, in particular to a bearing inner ring raceway groove measuring device.
Background
In the turning processing of the bearing ring, the dimensional accuracy of the raceway groove and the position accuracy of the raceway groove directly influence the accuracy of the allowance, the position, the shape and the like of the finish grinding of the raceway groove after the heat treatment of the bearing ring, and have great influence on the quality of a final bearing. Generally, the method can only be ensured by manual full inspection, and a large amount of manual labor is required in mass production.
Disclosure of Invention
Aiming at the defects existing in the prior art, the main purpose of the invention is to overcome the defects of the prior art and discloses a bearing inner ring raceway groove measuring device which comprises an actuator, a connecting bottom plate, a pair of side plates, at least two sets of first ball bushing guide shaft assemblies, raceway groove measuring sliding plates, elastic pieces, a size detecting device and a pair of size measuring heads, wherein one pair of side plates are fixed on the connecting bottom plate, the first ball bushing guide shaft assemblies are arranged between the side plates, and adjacent first ball bushing guide shaft assemblies are arranged in parallel; the pair of the track groove measuring slide plates are arranged on the first ball bushing guide shaft sleeve piece and move independently along the first ball bushing guide shaft sleeve piece, the pair of the dimension measuring heads are respectively arranged on the track groove measuring slide plates, the distance between the two dimension measuring heads is smaller than the diameter of the track groove of the measured object, the dimension detecting device is arranged on the track groove measuring slide plates and used for measuring the distance between the pair of the track groove measuring slide plates, the elastic piece enables the two track groove measuring slide plates to be always at the minimum distance under the condition of not being subjected to external force, and the actuator drives the connecting bottom plate to move vertically.
Further, the first ball bush guiding shaft sleeve comprises a first guiding shaft, two first bushes and two first ball bushes, the two first bushes are slidably arranged on the first guiding shaft through the first ball bushes, and two ends of the first guiding shaft are respectively fixed with side plates on two sides.
Further, the first ball bushing guide shaft kit is provided with four sets, and is disposed in parallel between the side plates.
Further, the maximum distance of relative displacement between the two track grooves measuring slide plates is 2mm.
Further, the dimension detecting device includes a stopper screw and a sensor, which are provided on the pair of raceway groove measuring slides, respectively.
Further, the sensor is a high-precision contact type digital sensor.
Further, the device also comprises a track groove position detection mechanism, wherein the track groove position detection mechanism is arranged on the connecting bottom plate and is used for measuring the distance from the track groove of the object to be measured to one side.
The raceway groove position detection mechanism comprises a support bottom plate, a support, at least two sets of second ball bushing guide shaft assemblies, raceway groove position measurement sliding plates, at least two sets of third ball bushing guide shaft assemblies, a sensor support, a position detection device and a position measuring head, wherein the support bottom plate is arranged on the connecting bottom plate, the second ball bushing guide shaft assemblies are arranged between the support bottom plate and the support, and adjacent second ball bushing guide shaft assemblies are arranged in parallel;
the third ball bushing guide shaft sleeve member is arranged on the second ball bushing guide shaft sleeve member through the raceway groove position measuring slide plate, the sensor support and the position measuring head are respectively arranged at two ends of the third ball bushing guide shaft sleeve member, and the adjacent third ball bushing guide shaft sleeve members are mutually parallel;
the third ball bush guiding shaft sleeve member moves vertically along the second ball bush guiding shaft sleeve member, the position measuring head moves horizontally along the third ball bush guiding shaft sleeve member, the position detecting device is arranged on the sensor support and used for detecting the horizontal moving distance of the position measuring head, the contact surface of the position measuring head and the measured object is arc-shaped, and the arc of the position measuring head is smaller than the arc of the measured object raceway groove.
Further, the second ball bushing guide shaft sleeve piece comprises a second guide shaft, a spring, a second bushing and a second ball bushing, wherein the second bushing is sleeved on the second guide shaft through the second ball bushing, the spring is sleeved on the second guide shaft, one end of the spring is in contact with the second bushing, the other end of the spring is in contact with the bracket bottom plate, and downward thrust is always provided for the second bushing.
Further, the third ball bush guiding axle external member includes third guiding axle, stop collar, third bush and third ball axle sleeve, the third bush passes through third ball axle sleeve suit is in on the third guiding axle, the stop collar sets up two, sets up respectively the both ends of third bush and fix on the third guiding axle, be used for the restriction the travel distance of third bush.
Further, the position detection device comprises a digital eddy current displacement sensor and a measuring block, wherein the digital eddy current displacement sensor is arranged on the sensor support, the measuring block is arranged on the raceway groove position measuring slide plate, and the digital eddy current displacement sensor measures the distance from the digital eddy current displacement sensor to the measuring block.
The invention has the beneficial effects that:
(1) The invention combines the measurement of the size of the raceway groove with the measurement of the position, can detect two kinds of data through one step of operation, greatly improves the detection efficiency, simultaneously measures two values at one time, judges, ensures the reliability of the detection of the detected object, and greatly reduces the false detection rate.
(2) The bushing, the ball bearing sleeve and the guide shaft are matched, so that the structure is compact, and the precision is high; and the friction coefficient is extremely small, which is particularly beneficial to improving the repeated positioning accuracy during measurement.
(3) The invention uses the cylinder to drive, adopts the ball bushing guide shaft sleeve with extremely small friction coefficient and the high-precision sensor with the detection convenience and precision of more than 1 mu m. The automatic detection device has the advantages of high detection precision, short detection period, compact structure and the like, and can realize automatic detection of the size and the position of the raceway groove by being matched with an automatic feeding/discharging device. The automatic online detection device is particularly suitable for automatic online detection during large-scale production of bearing rings.
Drawings
FIG. 1 is a schematic diagram of a device for measuring raceway grooves of an inner ring of a bearing;
FIG. 2 is a schematic view of a first ball bushing guide shaft assembly;
FIG. 3 is a state diagram of a dimensional stylus during measurement;
fig. 4 is a schematic structural view of the track groove position detecting mechanism;
FIG. 5 is a schematic view of a second ball bushing guide shaft assembly;
FIG. 6 is a schematic structural view of a third ball bushing guide shaft assembly;
FIG. 7 is a schematic diagram of track groove position detection;
the reference numerals are as follows:
1. the device comprises an actuator, 2, a connecting bottom plate, 3, a side plate, 4, a first ball bushing guide shaft sleeve, 5, a raceway groove measuring slide plate, 6, an elastic piece, 7, a size detection device, 8, a size measuring head, 9, a raceway groove position detection mechanism, 41, a first guide shaft, 42, a first bushing, 43, a first ball bushing, 71, a stop screw, 72, a sensor, 91, a bracket bottom plate, 92, a bracket, 93, a second ball bushing guide shaft sleeve, 94, a raceway groove position measuring slide plate, 95, a third ball bushing guide shaft condition, 96, a sensor bracket, 97, a position detection device, 98, a position measuring head, 931, a second guide shaft, 932, a spring, 933, 934, a second ball bushing, 951, a third guide shaft, 952, a limit sleeve, 953, a third bushing, 954, a third ball bushing, 971, a digital eddy current displacement sensor, 972 and a measuring block.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, an actuator 1, a connection bottom plate 2, a pair of side plates 3, at least two sets of first ball bushing guide shaft assemblies 4, a raceway groove measurement slide plate 5, an elastic member 6, a size detection device 7 and a pair of size measuring heads 8, wherein the pair of side plates 3 are fixed on the connection bottom plate 2, the first ball bushing guide shaft assemblies 4 are arranged between the side plates, and adjacent first ball bushing guide shaft assemblies 4 are arranged in parallel; preferably, the first ball bushing guide shaft assembly 4 is provided with four sets and is arranged in parallel between the side plates 3. A pair of track groove measuring slide plates 5 are arranged on the first ball bushing guide shaft sleeve piece 4 and move independently along the first ball bushing guide shaft sleeve piece 4, a pair of dimension measuring heads 8 are respectively arranged on the track groove measuring slide plates 5, and the distance between the two dimension measuring heads 8 is smaller than the diameter of a track groove of a measured object; preferably, the distance between the two measuring heads 8 is smaller than 0.4-0.5mm of the size of the raceway groove of the measured object, so that the effectiveness of measurement is further ensured. A size detecting device 7 provided on the track groove measuring slide 5 for measuring a distance between the pair of track groove measuring slide 5; the size detecting device 7 includes a stopper screw 71 and a sensor 72, the stopper screw 71 and the sensor 72 are respectively provided on the pair of track groove measuring slide plates 5, the sensor 72 may be a high-precision contact type digital sensor with a precision of 1 μm, the high-precision contact type digital sensor is always in contact with the stopper screw 71, and a distance between them is measured by a contact method. The elastic member 6 keeps the two track groove measuring slide plates 5 at the minimum distance all the time without external force, the elastic member 6 may be a spring, both ends of the spring are fixed with the two track groove measuring slide plates 5 respectively, the two track groove measuring slide plates 5 are kept at the minimum distance all the time by restoring force of the spring, when external force is applied, the distance between the two track groove measuring slide plates 5 is increased, and when external force is lost, the two track groove measuring slide plates 5 are restored to the minimum distance position. The actuator 1 may be a crossed roller ramp cylinder which drives the vertical movement of the connecting floor 2. The cylinder has good repeated positioning precision and compact structure, and measurement errors can be reduced by adopting the cylinder.
As shown in fig. 2, the first ball bushing guide shaft assembly 4 includes a first guide shaft 41, two sets of first bushings 42, and two sets of first ball bushings 43, the two sets of first bushings 42 being slidably disposed on the first guide shaft 41 through the first ball bushings 43, both ends of the first guide shaft 41 being respectively fixed with the side plates 3. The two track groove measuring slide plates 5 are provided on the first bush 42, respectively, and the track groove measuring slide plates 5 can slide between the two side plates 3 at the same time or can slide alone. Preferably, the relative displacement distance between the two track grooves measuring slide plate 3 is at most 2mm. By limiting the sliding distance, the detected object can be ensured to be in the range of the detection position and the measurement precision can be ensured while the detected object does not need to be accurately positioned; at the same time, the validity of the measurement data of the size detection device 7 is ensured, and the damage to the size detection device 7 caused by exceeding the measurement range of the size detection device 7 is prevented.
Referring to fig. 1 to 3, the steps of detecting the track groove size are as follows:
the device is arranged on a slide way, a detected object slides to a detection position, the detected object is clung to a side wall of the slide way through an air cylinder, the side wall is used as a reference surface for detection, an actuator 1 drives a connecting bottom plate 2 to move downwards, two dimension measuring heads 8 are propped open, a dimension detection device 7 detects actual measurement values, when the actual measurement values are in a set range, products are identified as good products, and when the actual measurement values exceed the set range, the products are identified as bad products.
As shown in fig. 1 and 4, the measuring apparatus of the present invention further includes a track groove position detecting mechanism 9, the track groove position detecting mechanism 9 being provided on the connection base plate 2 for measuring the distance of the track groove of the object to be measured to one side to detect the relative position of the track groove on the bearing ring.
The raceway groove position detection mechanism 9 includes a bracket base plate 91, a bracket 92, at least two sets of second ball bush guide shaft assemblies 93, raceway groove position measurement slide plates 94, at least two sets of third ball bush guide shaft assemblies 95, a sensor bracket 96, a position detection device 97, and a position measurement head 98, the bracket base plate 91 is provided on the connection base plate 2, the second ball bush guide shaft assemblies 93 are provided between the bracket base plate 91 and the bracket 92, adjacent second ball bush guide shaft assemblies 93 are provided in parallel with each other, the raceway groove position measurement slide plates 94 are provided on the second ball bush guide shaft assemblies 92, and are capable of moving vertically in the guide direction of the second ball bush guide shaft assemblies 92; the third ball bushing guide shaft sleeve 95 is arranged on the raceway groove position measurement slide plate 94, the sensor bracket 96 and the position measuring head 98 are respectively arranged at two ends of the third ball bushing guide shaft sleeve 95, the adjacent third ball bushing guide shaft sleeve 9 are mutually parallel, and the position measuring head 98 moves along the guide direction of the third ball bushing guide shaft sleeve 95; the guiding direction of the second bushing guiding shaft sleeve 93 is perpendicular to the guiding direction of the third ball bushing guiding shaft sleeve 95; that is, the third ball bushing guide shaft assembly 95 moves vertically along the second ball bushing guide shaft assembly 93, and the position probe 98 moves horizontally along the third ball bushing guide shaft assembly 95. A position detecting device 97 is provided on the sensor bracket 96 for detecting the horizontal movement distance of the position probe 98; the position detecting device 97 includes a digital eddy current displacement sensor 971 and a measuring block 972, the accuracy of which is 0.14 μm, the digital eddy current displacement sensor 971 is provided on the sensor holder 96, the measuring block 972 is provided on the raceway groove position measuring slide plate 94, and the digital eddy current displacement sensor 971 measures the distance between it and the measuring block 972, that is, the distance of the horizontal movement of the position measuring head 98. Because the contact with the measuring block 972 is not needed during measurement, the contact of the measuring head with the circular arc of the raceway groove of the measured object is not influenced by other forces, and the coincidence of the circular arc of the measuring head and the raceway groove of the material is ensured to the greatest extent. The contact surface of the position probe 98 and the measured object is arc-shaped, and the arc of the position probe 98 is smaller than the arc of the measured object raceway groove. Preferably, the radius of the arc of the position probe 98 is 0.05mm less than the radius of the arc of the raceway groove. The measuring device can ensure that the measuring base can be completely overlapped with the circular arc of the raceway groove, and improves the measuring precision.
As shown in fig. 5, the second ball bushing guide shaft assembly 93 includes a second guide shaft 931, a spring 932, a second bushing 933, and a second ball bushing 934, the second bushing 933 being fitted over the second guide shaft 931 through the second ball bushing 934, and the spring 932 being fitted over the second guide shaft 931 with one end thereof being in contact with the second bushing 933 and the other end thereof being in contact with the bracket base plate 91, always providing downward thrust to the second bushing 933. When the second bush 933 is pushed to move upward, the spring 932 contracts, and when the second bush 933 loses the pushing force, the second bush 933 moves downward by the spring 932 and its own weight.
As shown in fig. 6, the third ball bushing guide shaft assembly 95 includes a third guide shaft 951, a limit bushing 952, a third bushing 953, and a third ball bushing 954, the third bushing 953 is sleeved on the third guide shaft 951 through the third ball bushing 954, the limit bushing 952 is provided in two, is provided at both ends of the third bushing 953 and is fixed on the third guide shaft 951, respectively, for limiting a moving distance of the third bushing 953, and preferably, a moving range of the position gauge head 98 is 0.5-1mm to ensure a contact position of the position gauge head 98 with a measured material.
As shown in fig. 1, 4-7, when the track groove position detecting mechanism 9 is in use, the actuator 1 drives the connecting bottom plate 2 to move downwards when the object to be detected is positioned below the device, and the object to be detected is kept motionless due to the fact that the object to be detected is tightly attached to one side wall of the slideway; after the actuator 1 moves to the maximum stroke, a downward pressure is always provided for the measuring head by the action of the spring 932 in the second ball bushing guiding shaft sleeve 93, the position measuring head 98 is in contact with the raceway groove, and because the position measuring head 98 and the raceway groove are both circular arc-shaped, the downward thrust of the position measuring head 98 is converted into horizontal thrust due to the contact surface, the position measuring head 98 is driven to move horizontally, the third guiding shaft 951 moves horizontally along the third bushing 953, the distance between the digital eddy current displacement sensor 971 and the measuring block 972 is further changed, the measured value is measured, the value is compared with a preset value, and when the value is within the preset value range, the product is determined to be qualified, otherwise, the product is not qualified.
As shown in fig. 1-7, the measured object is tightly attached to one side wall of the slideway, when the actuator 1 drives the connecting bottom plate 2 to move downwards, the size measuring head 8 and the position measuring head 98 move downwards simultaneously, when the size measuring head 8 is propped open, the position measuring head 98 contacts with the measured object, downward pressure is converted into pushing force for pushing the position measuring head 98 to move horizontally, and meanwhile, the diameter size of the measured object and the position of the raceway groove on the measured object are measured. And if the measured two measured values are within the preset range, the product is qualified, otherwise, if only one value is not within the preset range, the product is judged to be unqualified.
The invention has the beneficial effects that:
(1) The invention combines the measurement of the size of the raceway groove with the measurement of the position, can detect two kinds of data through one step of operation, greatly improves the detection efficiency, simultaneously measures two values at one time, judges, ensures the reliability of the detection of the detected object, and greatly reduces the false detection rate.
(2) The bushing, the ball bearing sleeve and the guide shaft are matched, so that the structure is compact, and the precision is high; and the friction coefficient is extremely small, which is particularly beneficial to improving the repeated positioning accuracy during measurement.
(3) The invention uses the cylinder to drive, adopts the ball bushing guide shaft sleeve with extremely small friction coefficient and the high-precision sensor with the detection convenience and precision of more than 1 mu m. The automatic detection device has the advantages of high detection precision, short detection period, compact structure and the like, and can realize automatic detection of the size and the position of the raceway groove by being matched with an automatic feeding/discharging device. The automatic online detection device is particularly suitable for automatic online detection during large-scale production of bearing rings.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention; modifications and equivalent substitutions are intended to be included in the scope of the claims without departing from the spirit and scope of the present invention.
Claims (8)
1. The bearing inner ring raceway groove measuring device is characterized by comprising an actuator, a connecting bottom plate, a pair of side plates, at least two sets of first ball bushing guide shaft assemblies, raceway groove measuring sliding plates, elastic pieces, a size detecting device and a pair of size measuring heads, wherein one pair of side plates are fixed on the connecting bottom plate, the first ball bushing guide shaft assemblies are arranged between the side plates, and adjacent first ball bushing guide shaft assemblies are arranged in parallel; a pair of the track groove measuring slide plates are arranged on the first ball bushing guide shaft sleeve piece and move independently along the first ball bushing guide shaft sleeve piece, a pair of the dimension measuring heads are respectively arranged on the track groove measuring slide plates, the distance between the two dimension measuring heads is smaller than the diameter of a track groove of a measured object, the dimension detecting device is arranged on the track groove measuring slide plates and is used for measuring the distance between the pair of the track groove measuring slide plates, the elastic piece enables the two track groove measuring slide plates to be always at the minimum distance under the condition of not receiving external force, and the actuator drives the connecting bottom plate to move vertically;
the first ball bushing guide shaft sleeve comprises a first guide shaft, two sets of first bushings and two sets of first ball bushings, the two sets of first bushings are slidably arranged on the first guide shaft through the first ball bushings, and two ends of the first guide shaft are respectively fixed with side plates on two sides;
the device also comprises a rollaway nest position detection mechanism, wherein the rollaway nest position detection mechanism is arranged on the connecting bottom plate and is used for measuring the distance from the rollaway nest of the object to be measured to one side;
the raceway groove position detection mechanism comprises a support bottom plate, a support, at least two sets of second ball bushing guide shaft assemblies, raceway groove position measurement sliding plates, at least two sets of third ball bushing guide shaft assemblies, a sensor support, a position detection device and a position measuring head, wherein the support bottom plate is arranged on the connecting bottom plate, the second ball bushing guide shaft assemblies are arranged between the support bottom plate and the support, and adjacent second ball bushing guide shaft assemblies are arranged in parallel;
the third ball bushing guide shaft sleeve member is arranged on the second ball bushing guide shaft sleeve member through the raceway groove position measuring slide plate, the sensor support and the position measuring head are respectively arranged at two ends of the third ball bushing guide shaft sleeve member, and the adjacent third ball bushing guide shaft sleeve members are mutually parallel;
the third ball bush guiding shaft sleeve member moves vertically along the second ball bush guiding shaft sleeve member, the position measuring head moves horizontally along the third ball bush guiding shaft sleeve member, the position detecting device is arranged on the sensor support and used for detecting the horizontal moving distance of the position measuring head, the contact surface of the position measuring head and the measured object is arc-shaped, and the arc of the position measuring head is smaller than the arc of the measured object raceway groove.
2. The bearing inner race track groove measurement apparatus according to claim 1, characterized in that the first ball bushing guide shaft set is provided with four sets, and is disposed in parallel between the side plates.
3. A bearing inner race track groove measurement apparatus as set forth in claim 1 wherein the maximum distance of relative displacement between two of said track groove measurement slides is 2mm.
4. The bearing inner race track groove measurement apparatus according to claim 1, characterized in that the dimension detection means includes a stopper screw and a sensor, which are provided on a pair of the track groove measurement slide plates, respectively.
5. The bearing inner race track groove measurement apparatus according to claim 4, characterized in that the sensor is a high-precision contact type digital sensor.
6. The bearing inner race raceway groove measurement device according to claim 1, wherein the second ball bushing guide sleeve member includes a second guide shaft, a spring, a second bushing fitted over the second guide shaft through the second ball bushing, and a second ball bushing fitted over the second guide shaft with one end thereof in contact with the second bushing and the other end thereof in contact with the bracket bottom plate, and always provides downward thrust to the second bushing.
7. The bearing inner race raceway groove measurement device according to claim 1, wherein the third ball bushing guide shaft set includes a third guide shaft, a stop collar, a third bushing, and a third ball bushing, the third bushing is sleeved on the third guide shaft through the third ball bushing, and the stop collar is provided in two, is provided at both ends of the third bushing, and is fixed on the third guide shaft, for limiting a moving distance of the third bushing.
8. The bearing inner race raceway groove measurement device of claim 1, wherein the position detection device includes a digital eddy current displacement sensor provided on the sensor holder and a measurement block provided on the raceway groove position measurement slide plate, the digital eddy current displacement sensor measuring a distance from the measurement block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550537.3A CN108458650B (en) | 2018-05-31 | 2018-05-31 | Bearing inner race raceway groove measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550537.3A CN108458650B (en) | 2018-05-31 | 2018-05-31 | Bearing inner race raceway groove measuring device |
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| CN108458650A CN108458650A (en) | 2018-08-28 |
| CN108458650B true CN108458650B (en) | 2023-10-17 |
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| CN109648302B (en) * | 2018-12-25 | 2023-09-19 | 苏州市瑞昌机电工程有限公司 | Automatic dress jump ring and check out test set |
| CN114777704A (en) * | 2022-05-07 | 2022-07-22 | 西安理工大学 | Slider raceway size detection device |
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