CN110160454B - Bearing assembly clearance on-line measuring machine and clearance measuring method thereof - Google Patents
Bearing assembly clearance on-line measuring machine and clearance measuring method thereof Download PDFInfo
- Publication number
- CN110160454B CN110160454B CN201910398588.3A CN201910398588A CN110160454B CN 110160454 B CN110160454 B CN 110160454B CN 201910398588 A CN201910398588 A CN 201910398588A CN 110160454 B CN110160454 B CN 110160454B
- Authority
- CN
- China
- Prior art keywords
- measuring
- lifting
- clamping
- workbench
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses an online measuring machine for bearing assembly clearance and a clearance measuring method thereof. When the inner ring and the outer ring of the bearing are assembled, the clearances are inconsistent and even out of tolerance. The invention relates to an online measuring machine for bearing assembly clearance, which comprises a machine body, a workbench lifting and rotating mechanism, a clamping workbench and a constant-pressure measuring mechanism. The clamping workbench comprises a V-shaped positioning clamping block, a clamping driving assembly and a workbench. The constant-pressure measuring mechanism comprises a pressure detector, a transverse moving driving mechanism, an installation block, a guide rail, a measuring slide block, a scale grating and a grating reading head. The pressure detector comprises a measuring rod seat, a pressure sensor and a measuring rod. Two pressure sensors which are arranged at intervals are fixed in the pressure detection groove of the mounting block. The measuring rod passes through the measuring rod seat, and the top end of the measuring rod is positioned between the two pressure sensors. The invention can solve the problem of online measurement of the clearance in the automatic assembly production line of the rolling bearing by designing the constant-pressure measuring mechanism and the workpiece positioning and clamping device.
Description
Technical Field
The invention belongs to the technical field of intelligent manufacturing, and particularly relates to automatic equipment for online measurement of assembly clearance of a rolling bearing and a clearance measurement method thereof.
Background
Bearings are important mechanical basic components, the properties and quality of which determine to some extent the properties and quality of the machine equipment. China is the largest manufacturing country and consumer country of various bearings, but has a large gap compared with foreign technologies and quality levels. At present, in the bearing manufacturing process, turning and grinding automatic lines are commonly used. And the assembly automation line is mostly finished manually due to multiple processes and complex actions. Because the assembly quality of the bearing greatly affects the overall quality of the bearing, the assembly of the bearing is low in efficiency on one hand and inconsistent on the other hand at present, and therefore unit processing methods and devices in an automatic assembly production line of the bearing, such as a bearing inner and outer ring channel measuring machine, a bearing sleeve ball assembling all-in-one machine, a bearing retainer press-fitting machine, a bearing double-face grease injection machine, a bearing double-face capping machine, a bearing assembly clearance on-line measuring machine, a bearing clearance control method and system and the like, are technical problems to be solved urgently.
The bearing assembly clearance on-line measuring machine is automatic equipment for on-line measurement of the assembly clearance of the rolling bearing, and measured data is used for evaluating important indexes of the assembly quality of the rolling bearing. Due to different size errors in the machining process of the inner ring channel and the outer ring channel of the bearing, when the inner ring and the outer ring are assembled, the clearances are inconsistent and even out of tolerance.
Disclosure of Invention
The invention aims to provide an online measuring machine for bearing assembly play.
The invention relates to an online measuring machine for bearing assembly clearance, which comprises a machine body, a workbench lifting and rotating mechanism, a clamping workbench and a constant-pressure measuring mechanism. The clamping workbench comprises a V-shaped positioning clamping block, a clamping driving assembly and a workbench. The workbench is arranged on the machine body through the workbench lifting and rotating mechanism. The two V-shaped positioning clamping blocks and the workbench form a sliding pair and are driven by the clamping driving assembly to perform reverse synchronous motion.
The constant-pressure measuring mechanism comprises a pressure detector, a transverse moving driving mechanism, an installation block, a guide rail, a measuring slide block, a scale grating and a grating reading head. The guide rail is fixed with the machine body. The measuring slide block and the guide rail form a sliding pair. The mounting block is fixed at the bottom of the measuring slide block and is driven by the transverse moving driving mechanism. The scale grating is fixed on one side in the machine body. The grating reading head is fixed on the mounting block and arranged towards the scale grating.
The pressure detector comprises a pressure sensor and a measuring rod. The bottom surface of the mounting block is provided with a pressure detection groove. Two pressure sensors which are arranged at intervals are fixed in the pressure detection groove. The detection surfaces of the two pressure sensors are arranged oppositely. The top end of the measuring rod is positioned between the two pressure sensors and is in contact with the detection surfaces of the two pressure sensors.
Further, the central axis of the measuring rod is positioned in the symmetrical plane of the two positioning side surfaces of the V-shaped positioning and clamping block.
Further, the clamping driving assembly comprises a clamping screw rod and a clamping motor. The horizontally arranged clamping screw rod is supported on the workbench. The clamping screw rod adopts a bidirectional screw rod. The clamping motor is fixed on the workbench, and the output shaft is fixed with one end of the clamping screw rod. The two V-shaped positioning and clamping blocks and two spiral sections with opposite rotation directions on the clamping screw rod respectively form a spiral pair.
Furthermore, the transverse moving driving mechanism comprises a measuring screw rod, a measuring nut and a measuring motor. The measuring screw rod is supported in the machine body. The measuring motor is fixed on the machine body, and the output shaft is fixed with one end of the measuring screw rod. The measuring nut is fixed on the mounting block, and a screw pair is formed by the measuring screw rod.
Furthermore, workstation lifting and drop rotating mechanism include lift guide pillar, elevating platform, lift drive assembly, rotation drive assembly and crane. The lifting frame is fixed on the machine body. A lifting guide post is fixed on the lifting platform. The lifting guide post and the machine body form a sliding pair. The lifting driving assembly comprises a lifting nut, a lifting screw rod and a lifting motor. The vertically arranged lifting screw rod is supported on the lifting frame. The lifting motor is arranged on the lifting frame, and the output shaft is fixed with the bottom end of the lifting screw rod. The lifting nut fixed at the bottom of the lifting platform and the lifting screw rod form a screw pair. The rotary drive assembly includes a worm gear reducer and a rotary drive motor. The worm reducer and the rotary driving motor are both fixed on the top of the lifting platform. The output port of the worm reducer is fixed with the output shaft of the rotary driving motor. The output shaft of the worm gear reducer is vertically arranged upwards and is fixed with the workbench.
Furthermore, the measuring rod seat is provided with two stages of stepped holes penetrating through the measuring rod seat. The hole section with the larger aperture on the two-stage stepped hole is positioned between the hole section with the smaller aperture and the mounting block. The measuring rod is in a three-stage stepped shaft shape. The diameters of the top shaft section and the bottom shaft section of the measuring rod are smaller than the diameter of the middle shaft section. The top shaft section of the measuring rod is located between the two pressure sensors. The middle shaft section of the measuring rod is positioned in the hole section with larger aperture on the two-stage stepped hole. The bottom shaft section of the measuring rod penetrates through the hole section with smaller aperture on the two-stage stepped hole. The outer end of the bottom shaft section of the measuring rod is coated with wear-resistant materials.
Further, the arrangement direction of the slits on the scale grating is parallel to the length direction of the guide rail.
Furthermore, V-shaped positioning grooves are formed in opposite side faces of the two V-shaped positioning clamping blocks.
Further, the arrangement direction of the two pressure sensors is parallel to the length direction of the guide rail.
The clearance measuring method of the bearing assembly clearance on-line measuring machine comprises the following steps:
step one, placing a measured bearing between two V-shaped positioning and clamping blocks on a workbench. The clamping driving assembly drives the two V-shaped positioning clamping blocks to slide oppositely to clamp the measured bearing.
And step two, driving the measuring rod to move right above the inner hole of the measured bearing by the transverse moving driving mechanism.
And step three, driving the workbench to ascend by the workbench lifting and rotating mechanism until the bottom end of the measuring rod is positioned in the inner hole of the measured bearing. Assign 1 to i.
And step four, the transverse moving driving mechanism drives the measuring rod to move until the first pressure sensor detects that the preset pressure reaches the preset pressure.
And step five, the transverse moving driving mechanism drives the measuring rod to move in the direction opposite to the direction in the step four until the second pressure sensor detects that the preset pressure reaches the preset pressure. The grating reading head detects the displacement x of the measuring rod in the fifth stepi。
Step six, calculating the ith clearance ci＝d'+xi-d. Wherein d is the inner diameter of the measured bearing, and d' is the diameter of the bottom end of the measuring rod. And entering the step seven.
And seventhly, if i is less than n, the measuring motor rotates forwards, so that the measuring rod is not in contact with the inner ring of the measured bearing. And the worktable lifting and rotating mechanism drives the worktable to rotate forwards for 90 degrees/(n-1), increases i by 1 and executes the steps from four to six. Otherwise, go to step eight.
Step eight, calculating a final clearance value
The invention has the beneficial effects that:
1. by designing the constant-pressure measuring mechanism and the workpiece positioning and clamping device, the invention can solve the problem of online measurement of the clearance in the automatic assembly production line of the rolling bearing, not only provides evaluation data for the assembly quality of the rolling bearing, but also can carry out self-adaptive adjustment on the assembly process of the bearing, and obviously improves the assembly precision and the consistency of the bearing. Therefore, the method has remarkable economic, social and environmental benefits.
2. In the detection of the constant-pressure measuring mechanism, the measuring rod 5 is moved to the left, the left gap between the inner ring and the outer ring of the bearing is eliminated, and the point is used as a zero point for measuring the clearance; and then the measuring motor 11 rotates reversely to enable the measuring rod 5 to move rightwards until the right-side clearance between the inner ring and the outer ring of the bearing is eliminated, and at the moment, the displacement value of the measuring rod 5 measured by the grating subtracts the inner diameter of the measured bearing to obtain a clearance value.
3. The surface of the bottom end (contact end) of the measuring rod 5 is coated with the wear-resistant material, so that the contact end is prevented from being worn; the upper end of the measuring rod 5 is embedded with a pressure sensor 4, and when a specified pressure value is reached, the grating reading head 23 reads the pressure value. The combination of the precise screw-nut pair, the constant-pressure measurement mode and the high-precision grating improves the accuracy and consistency of measurement.
4. The clamping workbench drives a clamping screw rod 13 through a clamping motor 14, and the screw rod is a forward and reverse integrated bidirectional screw rod, so that two V-shaped positioning clamping blocks 12 can be driven to move towards the center, and a measured bearing 2 placed on the workbench 15 is concentrically clamped on the workbench.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a clamping table of the present invention (cross-sectional view taken along section A-A in FIG. 1);
FIG. 3 is a schematic view of a traverse drive mechanism (cross-sectional view taken along line B-B in FIG. 1) in the present invention;
FIG. 4 is a schematic view showing a combination of a pressure detector and a traverse driving mechanism according to the present invention (a cross-sectional view taken along line C-C in FIG. 1);
fig. 5 is a schematic view of the pressure detector of the present invention (a partial enlarged view of portion F in fig. 1).
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figure 1, the bearing assembly play on-line measuring machine comprises a top plate 1, a machine body 8, a workbench lifting and rotating mechanism, a clamping workbench, a constant pressure measuring mechanism and a controller. The workbench lifting and rotating mechanism comprises a lifting guide post 17, a lifting platform 18, a lifting driving assembly, a rotating driving assembly 16 and a lifting frame 21. The lifting frame 21 is fixed on the machine body 8. Four corners of the lifting platform 18 are fixed with vertically arranged lifting guide posts 17. Four guide sleeves fixed on the machine body 8 and four lifting guide columns 17 respectively form sliding pairs. The lifting driving assembly comprises a lifting nut, a lifting screw rod 19 and a lifting motor 20. The vertically arranged lifting screw 19 is supported on a lifting frame 21. The lifting motor is arranged on the lifting frame 21, and the output shaft is fixed with the bottom end of the lifting screw rod 19. The lifting nut fixed at the bottom of the lifting platform 18 and the lifting screw rod 19 form a screw pair. The rotary drive assembly 16 includes a worm gear reducer and a rotary drive motor. The worm reducer and the rotary driving motor are both fixed on the top of the lifting table 18. The output port of the worm reducer is fixed with the output shaft of the rotary driving motor. The output shaft of the worm reducer is vertically arranged upwards.
As shown in fig. 1 and 2, the clamping worktable comprises a V-shaped positioning clamping block 12, a clamping driving assembly and a worktable 15. The bottom of the working table 15 is fixed with the top end of the output shaft of the worm reducer. The two V-shaped positioning clamping blocks 12 and the workbench 15 form a sliding pair. The opposite side surfaces of the two V-shaped positioning and clamping blocks 12 are provided with V-shaped positioning grooves. The clamping driving assembly comprises a clamping screw 13 and a clamping motor 14. The horizontally arranged clamping screw 13 is supported on a table 15. The clamping screw rod 13 adopts a bidirectional screw rod. The clamping motor 14 is fixed on the workbench 15, and the output shaft is fixed with one end of the clamping screw 13. The two V-shaped positioning and clamping blocks 12 and two spiral sections with opposite rotation directions on the clamping screw rod 13 respectively form a spiral pair. When the clamping screw 13 rotates, the two V-shaped positioning clamping blocks 12 move towards or away from each other, so that the bearing 2 to be measured is clamped or loosened.
As shown in fig. 1, 3 and 4, the constant-pressure measuring mechanism includes a pressure detector, a traverse driving mechanism, a mounting block 6, a guide rail 7, a measuring slider 22, a scale grating 24, and a grating reading head 23. The top plate 1 is fixed on top of the body 8. The guide rail 7 is fixed to the bottom surface of the top plate 1. The measuring slide 22 and the guide rail 7 form a sliding pair. The mounting block 6 is fixed to the bottom of the measuring slide 22. The transverse moving driving mechanism comprises a measuring screw rod 9, a screw rod bearing 10, a measuring nut and a measuring motor 11. The measuring spindle 9 is supported at both ends in the machine body 8 by spindle bearings 10. The measuring motor 11 is fixed on the machine body 8, and an output shaft is fixed with one end of the measuring screw rod 9. The measuring nut is fixed on the mounting block 6, and a screw pair is formed on the measuring screw rod 9. The scale grating 24 is fixed to one side within the body 8. The arrangement direction of the slits on the scale grating 24 is parallel to the longitudinal direction of the guide rail 7. The grating read head 23 is fixed to the mounting block 6 and is disposed towards the scale grating 24.
As shown in fig. 1, 4 and 5, the pressure detector includes a measuring rod base 3, a pressure sensor 4 and a measuring rod 5. The measuring rod seat 3 is fixed at the bottom end of the mounting block 6. The bottom surface of the mounting block 6 is provided with a pressure detection groove. Two pressure sensors 4 which are arranged at intervals are fixed in the pressure detection groove. The detection surfaces of the two pressure sensors 4 are arranged to face each other, and the arrangement direction (i.e., the normal vector of the detection surface) of the two pressure sensors 4 is parallel to the longitudinal direction of the guide rail 7.
Two-stage stepped holes penetrating through the measuring rod base 3 are formed in the measuring rod base 3. The hole section with larger aperture on the two-stage stepped hole is positioned between the hole section with smaller aperture and the mounting block 6. The measuring rod 5 is in a three-stage stepped shaft shape. The diameters of the top shaft section and the bottom shaft section of the measuring rod 5 are smaller than the diameter of the middle shaft section. The top shaft section of the measuring rod 5 is located between the two pressure sensors 4 and is in contact with the detection surfaces of the two pressure sensors 4. The middle shaft section of the measuring rod 5 is positioned in the hole section with larger aperture on the two-stage stepped hole. The bottom shaft section of the measuring rod 5 penetrates through the hole section with smaller aperture on the two-stage stepped hole. The outer end of the bottom shaft section of the measuring rod 5 is coated with a wear resistant material to reduce wear.
The central axis of the measuring rod 5 is located in the symmetrical plane of the two positioning side surfaces of the V-shaped positioning and clamping block 12 (i.e. the central axis to which the measuring rod 5 can move coincides with the axis of the bearing 2 to be measured after the bearing 2 to be measured is clamped). Two positioning side surfaces of the V-shaped positioning clamping block 12 are two side surfaces of the V-shaped groove on the V-shaped positioning clamping block.
The control input interfaces of the lifting motor 20, the rotary driving motor, the clamping motor and the measuring motor are respectively connected with the four motor control interfaces of the controller through motor drivers. The signal output interfaces of the two pressure sensors 4 are respectively connected with two pressure signal input interfaces (analog-digital conversion ends) of the controller. The signal output interface of the grating reading head 23 is connected with the displacement signal input interface of the controller. The controller adopts a singlechip or a PLC.
The clearance measuring method of the bearing assembly clearance on-line measuring machine comprises the following steps:
firstly, the measured bearing 2 is placed between two V-shaped positioning and clamping blocks 12 on a workbench 15. The clamping motor 14 positively drives the two V-shaped positioning clamping blocks 12 to slide towards each other, so that the measured bearing 2 is concentrically clamped on the workbench. The grating reading head 23 cooperates with the scale grating 24 to detect the current position of the measuring rod 5 at any moment.
And step two, the measuring motor 11 rotates to drive the measuring rod 5 to move right above the inner hole of the measured bearing 2.
And step three, the lifting motor 20 rotates forwards, so that the workbench 15 is lifted to a state that the bottom end of the measuring rod 5 extends into the inner hole of the measured bearing 2. Assign 1 to i.
And step four, the measuring motor 11 rotates forwards to enable the measuring rod 5 to move until the bottom end of the measuring rod 5 is contacted with one side of the inner ring of the measured bearing 2, and the first pressure sensor 4 detects that the preset pressure reaches the preset pressure. At this time, one side gap of the measured bearing 2 is eliminated.
And step five, the measuring motor 11 rotates reversely, so that the measuring rod 5 moves in the direction opposite to the direction in the step four until the bottom end of the measuring rod 5 is contacted with the other side of the inner ring of the measured bearing 2, and the second pressure sensor 4 detects that the preset pressure reaches the preset pressure. At this time, the other side gap of the measured bearing 2 is eliminated. The controller detects the displacement x of the measuring rod 5 in the fifth step through the grating reading head 23i。
Step six, calculating the ith clearance ci＝d'+xi-d. Wherein d is the inner diameter of the measured bearing, and d' is the diameter of the bottom end of the measuring rod 5.
And step seven, if i is equal to 1, the measuring motor 11 rotates forwards, so that the measuring rod 5 is not in contact with the inner ring of the measured bearing 2. The rotary drive assembly 16 drives the table to rotate 90 °, increments i by 1, and performs steps four through six. Otherwise, go to step eight.
Step eight, calculating a final clearance value
Claims (10)
1. A bearing assembly clearance on-line measuring machine comprises a machine body, a workbench lifting and rotating mechanism, a clamping workbench and a constant pressure measuring mechanism; the method is characterized in that: the clamping workbench comprises a V-shaped positioning clamping block, a clamping driving assembly and a workbench; the workbench is arranged on the machine body through the workbench lifting and rotating mechanism; the two V-shaped positioning and clamping blocks and the workbench form a sliding pair and are driven by the clamping driving assembly to perform reverse synchronous motion;
the constant-pressure measuring mechanism comprises a pressure detector, a transverse moving driving mechanism, an installation block, a guide rail, a measuring slide block, a scale grating and a grating reading head; the guide rail is fixed with the machine body; the measuring slide block and the guide rail form a sliding pair; the mounting block is fixed at the bottom of the measuring slide block and is driven by the transverse moving driving mechanism; the scale grating is fixed on one side in the machine body; the grating reading head is fixed on the mounting block and arranged towards the scale grating;
the pressure detector comprises a pressure sensor and a measuring rod; the bottom surface of the mounting block is provided with a pressure detection groove; two pressure sensors which are arranged at intervals are fixed in the pressure detection groove; the detection surfaces of the two pressure sensors are oppositely arranged; the top end of the measuring rod is positioned between the two pressure sensors and is in contact with the detection surfaces of the two pressure sensors.
2. The bearing assembly play on-line measuring machine of claim 1, characterized in that: the central axis of the measuring rod is positioned in the symmetrical planes of the two positioning side surfaces of the V-shaped positioning and clamping block.
3. The bearing assembly play on-line measuring machine of claim 1, characterized in that: the clamping driving assembly comprises a clamping screw rod and a clamping motor; the horizontally arranged clamping screw rod is supported on the workbench; the clamping screw rod adopts a bidirectional screw rod; the clamping motor is fixed on the workbench, and an output shaft is fixed with one end of the clamping screw rod; the two V-shaped positioning and clamping blocks and two spiral sections with opposite rotation directions on the clamping screw rod respectively form a spiral pair.
4. The bearing assembly play on-line measuring machine of claim 1, characterized in that: the transverse moving driving mechanism comprises a measuring screw rod, a measuring nut and a measuring motor; the measuring screw rod is supported in the machine body; the measuring motor is fixed on the machine body, and an output shaft is fixed with one end of the measuring screw rod; the measuring nut is fixed on the mounting block, and a screw pair is formed by the measuring screw rod.
5. The bearing assembly play on-line measuring machine of claim 1, characterized in that: the workbench lifting and rotating mechanism comprises a lifting guide pillar, a lifting platform, a lifting driving assembly, a rotating driving assembly and a lifting frame; the lifting frame is fixed on the machine body; a lifting guide pillar is fixed on the lifting platform; the lifting guide post and the machine body form a sliding pair; the lifting driving assembly comprises a lifting nut, a lifting screw rod and a lifting motor; the lifting screw rod which is vertically arranged is supported on the lifting frame; the lifting motor is arranged on the lifting frame, and the output shaft is fixed with the bottom end of the lifting screw rod; the lifting nut fixed at the bottom of the lifting platform and the lifting screw rod form a screw pair; the rotary driving assembly comprises a worm gear reducer and a rotary driving motor; the worm reducer and the rotary driving motor are both fixed on the top of the lifting platform; the output port of the worm reducer is fixed with the output shaft of the rotary driving motor; the output shaft of the worm gear reducer is vertically arranged upwards and is fixed with the workbench.
6. The bearing assembly play on-line measuring machine of claim 1, characterized in that: the measuring rod seat is provided with two stages of stepped holes penetrating through the measuring rod seat; the hole section with larger aperture on the two-stage stepped hole is positioned between the hole section with smaller aperture and the mounting block; the measuring rod is in a three-stage stepped shaft shape; the diameters of the top shaft section and the bottom shaft section of the measuring rod are smaller than the diameter of the middle shaft section; the top end shaft section of the measuring rod is positioned between the two pressure sensors; the middle shaft section of the measuring rod is positioned in the hole section with larger aperture on the two-stage stepped hole; the bottom end shaft section of the measuring rod penetrates through a hole section with a smaller aperture on the two-stage stepped hole; the outer end of the bottom shaft section of the measuring rod is coated with wear-resistant materials.
7. The bearing assembly play on-line measuring machine of claim 1, characterized in that: the arrangement direction of the slits on the scale grating is parallel to the length direction of the guide rail.
8. The bearing assembly play on-line measuring machine of claim 1, characterized in that: v-shaped positioning grooves are formed in opposite side faces of the two V-shaped positioning clamping blocks.
9. The bearing assembly play on-line measuring machine of claim 1, characterized in that: the arrangement direction of the two pressure sensors is parallel to the length direction of the guide rail.
10. The play measuring method of a bearing assembly play on-line measuring machine according to claim 2, characterized in that:
step one, placing a measured bearing between two V-shaped positioning and clamping blocks on a workbench; the clamping driving assembly drives the two V-shaped positioning clamping blocks to slide oppositely to clamp the measured bearing;
secondly, the transverse moving driving mechanism drives the measuring rod to move right above the inner hole of the measured bearing;
step three, driving the workbench to ascend by the workbench lifting and rotating mechanism until the bottom end of the measuring rod is positioned in the inner hole of the measured bearing; assigning 1 to i;
fourthly, the transverse moving driving mechanism drives the measuring rod to move until the first pressure sensor detects that the preset pressure reaches the preset pressure;
step five, the transverse moving driving mechanism drives the measuring rod to move in the direction opposite to the direction in the step four until the second pressure sensor detects that the preset pressure reaches the preset pressure; the grating reading head detects the displacement x of the measuring rod in the fifth stepi；
Step six, calculating the ith clearance ci＝d'+xi-d; wherein d is the inner diameter of the measured bearing, and d' is the diameter of the bottom end of the measuring rod; entering a seventh step;
step seven, if i is less than n, the measuring motor rotates forwards, so that the measuring rod is not in contact with the inner ring of the measured bearing; the workbench lifting and rotating mechanism drives the workbench to rotate forward for 90 degrees/(n-1), i is increased by 1, and steps from four to six are executed; otherwise, entering step eight;
step eight, calculating a final clearance value
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398588.3A CN110160454B (en) | 2019-05-14 | 2019-05-14 | Bearing assembly clearance on-line measuring machine and clearance measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398588.3A CN110160454B (en) | 2019-05-14 | 2019-05-14 | Bearing assembly clearance on-line measuring machine and clearance measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110160454A CN110160454A (en) | 2019-08-23 |
| CN110160454B true CN110160454B (en) | 2020-09-22 |
Family
ID=67634551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910398588.3A Active CN110160454B (en) | 2019-05-14 | 2019-05-14 | Bearing assembly clearance on-line measuring machine and clearance measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110160454B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631493B (en) * | 2019-09-05 | 2021-05-18 | 江苏理工学院 | Detection device and detection method for mechanical clearance of bearing |
| CN110426012A (en) * | 2019-09-06 | 2019-11-08 | 常州市赫铭自动化科技有限公司 | Automatic honeycomb ceramic detection equipment and its detection method |
| CN112743516B (en) * | 2020-12-18 | 2022-05-17 | 中煤科工集团西安研究院有限公司 | Truss type feeding and discharging system and method suitable for multi-specification mining drill bits |
| CN114279389A (en) * | 2021-12-28 | 2022-04-05 | 株洲铭山科技股份有限公司 | Detection equipment for motor bearing clearance |
| CN114322896B (en) * | 2022-01-11 | 2023-10-20 | 牧川传动科技(浙江)有限公司 | Radial clearance detection equipment and method for horizontal bearing |
| CN117824466B (en) * | 2024-03-01 | 2024-04-26 | 北京宗合铁路轴承有限公司 | Railway bearing clearance detection device and detection method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216283A (en) * | 2008-01-04 | 2008-07-09 | 洛阳轴研科技股份有限公司 | Large-sized precision bearing radial play multifunctional automatic measurement method and measuring apparatus |
| CN101363727A (en) * | 2008-09-05 | 2009-02-11 | 无锡市江益轴承自动化设备有限公司 | Detection device for bearing end-play |
| CN102062577A (en) * | 2010-12-06 | 2011-05-18 | 柳州科路测量仪器有限责任公司 | Automatic laser detector for wheel sets and method for automatically detecting wheel sets |
| CN102636095A (en) * | 2012-05-08 | 2012-08-15 | 洛阳Lyc轴承有限公司 | Measurement method for radial clearance of large bearing |
| CN203595480U (en) * | 2013-04-19 | 2014-05-14 | 上海海洋大学 | Instrument for measuring radial internal clearance of horizontal bearing |
| JP2014235046A (en) * | 2013-05-31 | 2014-12-15 | 日本精工株式会社 | Method and instrument for measuring clearance of rolling bearing |
| CN104713509A (en) * | 2015-03-25 | 2015-06-17 | 鹰领航空高端装备技术秦皇岛有限公司 | Measuring device for radial internal clearance of oscillating bearing |
| CN107101560A (en) * | 2017-07-06 | 2017-08-29 | 国电联合动力技术有限公司 | A kind of bearing end-play measurement assembly and the method for measuring bearing clearance |
| CN207132880U (en) * | 2017-09-08 | 2018-03-23 | 浙江辛子精工机械股份有限公司 | Bearing angle measuring device for windage |
-
2019
- 2019-05-14 CN CN201910398588.3A patent/CN110160454B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216283A (en) * | 2008-01-04 | 2008-07-09 | 洛阳轴研科技股份有限公司 | Large-sized precision bearing radial play multifunctional automatic measurement method and measuring apparatus |
| CN101363727A (en) * | 2008-09-05 | 2009-02-11 | 无锡市江益轴承自动化设备有限公司 | Detection device for bearing end-play |
| CN102062577A (en) * | 2010-12-06 | 2011-05-18 | 柳州科路测量仪器有限责任公司 | Automatic laser detector for wheel sets and method for automatically detecting wheel sets |
| CN102636095A (en) * | 2012-05-08 | 2012-08-15 | 洛阳Lyc轴承有限公司 | Measurement method for radial clearance of large bearing |
| CN203595480U (en) * | 2013-04-19 | 2014-05-14 | 上海海洋大学 | Instrument for measuring radial internal clearance of horizontal bearing |
| JP2014235046A (en) * | 2013-05-31 | 2014-12-15 | 日本精工株式会社 | Method and instrument for measuring clearance of rolling bearing |
| CN104713509A (en) * | 2015-03-25 | 2015-06-17 | 鹰领航空高端装备技术秦皇岛有限公司 | Measuring device for radial internal clearance of oscillating bearing |
| CN107101560A (en) * | 2017-07-06 | 2017-08-29 | 国电联合动力技术有限公司 | A kind of bearing end-play measurement assembly and the method for measuring bearing clearance |
| CN207132880U (en) * | 2017-09-08 | 2018-03-23 | 浙江辛子精工机械股份有限公司 | Bearing angle measuring device for windage |
Non-Patent Citations (1)
| Title |
|---|
| 三排圆柱滚子转盘轴承径向游隙测量;林利茹;《轴承》;20150330;第61-62页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110160454A (en) | 2019-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110160454B (en) | Bearing assembly clearance on-line measuring machine and clearance measuring method thereof | |
| CN103018104B (en) | Horizontal measuring device for axial static rigidity of ball screw pair and method thereof | |
| CN110160453B (en) | Bearing inner and outer ring channel measuring machine and measuring method thereof | |
| CN203053405U (en) | Rapid gear single error field measuring device based on double-face engagement | |
| CN102489762A (en) | Numerical control keyway milling machine and processing method thereof | |
| CN106596087A (en) | Novel device and method capable of realizing full-module friction identification | |
| CN210180659U (en) | Special location calibrating device of muscle bed | |
| CN107990828B (en) | Quick measuring device for dimension and form and position tolerance of driving axle housing parts | |
| CN114770201A (en) | Worm engagement detection device, detection method and numerical control cyclone milling machine tool | |
| CN101559572B (en) | Method and device for automatic alignment and on-line real-time detection in grinding of ball valve | |
| CN214250916U (en) | Shaft part measuring device with center hole as axis reference | |
| CN108436665A (en) | A kind of burnishing device for optical element | |
| CN110174037B (en) | Axle type processing check out test set | |
| CN210862608U (en) | High-precision quick measuring instrument for poly-wedge groove belt pulley | |
| CN112213034A (en) | Static balancing device | |
| CN116872108A (en) | Planet roller screw pair profiler detection platform mounting fixture | |
| CN116331772A (en) | Tooth hub online conveying system and online measuring conveying method | |
| CN113218347B (en) | Device for coaxially assembling and measuring rotating member | |
| CN109249304A (en) | A kind of plane lapping precision sizing equipment and control method | |
| CN209007067U (en) | Intelligent numerical control machine tool high-precision drive mechanism | |
| CN106840730A (en) | A kind of test platform for studying single shaft resetting error mechanism | |
| CN218994299U (en) | Grating displacement automatic calibration auxiliary device | |
| CN111958316A (en) | CNC digit control machine tool quick tool setting device | |
| CN220250931U (en) | Detection tool for rapidly detecting straightness of round bar material | |
| CN214722791U (en) | Precision testing tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201228 Address after: 4 / F, building 2, Sunshine Industrial Park, Dipu street, Anji County, Huzhou City, Zhejiang Province, 313000 Patentee after: Hangzhou University of Electronic Science and technology Anji Intelligent Manufacturing Technology Research Institute Co.,Ltd. Patentee after: HANGZHOU DIANZI University Address before: 310018 No. 2 street, Xiasha Higher Education Zone, Hangzhou, Zhejiang Patentee before: HANGZHOU DIANZI University |
|
| TR01 | Transfer of patent right |