CN110160453B - Bearing inner and outer ring channel measuring machine and measuring method thereof - Google Patents
Bearing inner and outer ring channel measuring machine and measuring method thereof Download PDFInfo
- Publication number
- CN110160453B CN110160453B CN201910398576.0A CN201910398576A CN110160453B CN 110160453 B CN110160453 B CN 110160453B CN 201910398576 A CN201910398576 A CN 201910398576A CN 110160453 B CN110160453 B CN 110160453B
- Authority
- CN
- China
- Prior art keywords
- measuring
- workbench
- bidirectional
- bearing
- rods
- 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
- G01B11/08—Measuring arrangements characterised by the use of optical 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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
Abstract
The invention discloses a bearing inner and outer ring channel measuring machine and a measuring method thereof. 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. The invention relates to a measuring machine for a groove of an inner ring and an outer ring of a bearing, which comprises a machine body, a guide rail mounting plate, a groove measuring mechanism, a two-shaft driving device of a workbench, a rotary driving device of the workbench and a clamping workbench. The clamping workbench comprises a wire coiling driving assembly, a bidirectional clamping block, a spiral wire coiling and a workbench box body. The channel measuring mechanism comprises a measuring guide rail, a scale grating, a bidirectional measuring head and a bidirectional driving assembly. The bidirectional measuring head comprises a measuring mounting frame, a measuring rod motor, a measuring rod, a centering moving block, a middle partition plate, a limiting plate, an error compensation spring and a grating reading head. The invention can measure the diameter of the channel at two positions for one measured workpiece, thereby greatly improving the efficiency of measuring the diameter of the bearing channel.
Description
Technical Field
The invention belongs to the technical field of intelligent manufacturing, and particularly relates to automatic equipment for measuring the size of a channel of an inner ring and an outer ring of a rolling bearing.
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 at present, and the assembly quality is inconsistent at present, so that the unit processing method and equipment in the automatic assembly production line of the bearing are always technical problems to be solved urgently.
The measurement of the inner and outer ring channels of the bearing is an automatic device for measuring the sizes of the inner and outer ring channels of the rolling bearing, and measured data is used for grading reference during the matching assembly of the inner and outer rings 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 a measuring machine and a measuring method for inner and outer ring channels of a bearing.
The invention relates to a measuring machine for a groove of an inner ring and an outer ring of a bearing, which comprises a machine body, a guide rail mounting plate, a groove measuring mechanism, a two-shaft driving device of a workbench, a rotary driving device of the workbench and a clamping workbench. The two-axis driving device of the workbench is arranged on the machine body. The worktable rotation driving device is arranged on the worktable two-shaft driving device and is arranged on the machine body.
The clamping workbench comprises a wire coiling driving assembly, a bidirectional clamping block, a spiral wire coiling and a workbench box body. The workbench box body is arranged on the workbench rotary driving device. The spiral wire coil is supported in the workbench box body. The spiral wire coil is driven by a wire coil driving assembly. The two bidirectional clamping blocks and the workbench box body form a sliding pair. The bottom surface of the bidirectional clamping block is provided with an arc-shaped groove. The arc-shaped groove on the bidirectional clamping block is respectively matched with the two spiral protrusions on the spiral wire coil. Two bidirectional clamping blocks are arranged on two sides of the central axis of the spiral wire coil in a centering manner.
The channel measuring mechanism comprises a measuring guide rail, a scale grating, a bidirectional measuring head and a bidirectional driving assembly. The measuring guide rail and the scale grating are both fixed with the machine body. The bidirectional measuring head comprises a measuring mounting frame, a measuring rod motor, a measuring rod, a centering moving block, a middle partition plate, a limiting plate, an error compensation spring and a grating reading head. The measuring installation frame and the measuring guide rail form a sliding pair. The centering moving block and the measuring installation frame form a sliding pair. The middle partition board is fixed on the centering moving block. Limiting plates are fixed at two ends of the measuring mounting frame. The middle clapboard is positioned between the two limiting plates. One ends of the two error compensation springs are fixed with the middle partition plate, and the other ends of the two error compensation springs are fixed with the two limiting plates respectively. The grating reading head is fixed on the measuring mounting frame and faces the scale grating. The top end of the measuring rod is supported on the measuring mounting frame. The measuring rod is driven by a measuring rod motor. The bottom of measuring stick is provided with the feeler lever. And a piezoelectric sensor is arranged at the outer end of the feeler lever.
The two-way measuring heads are two in number. The centering moving blocks in the two bidirectional measuring heads are synchronously and reversely driven by the bidirectional driving component.
Furthermore, the bidirectional driving assembly comprises a measuring head screw rod, a measuring nut and a measuring driving motor. The measuring head screw rod is supported at the top of the machine body. The measuring driving motor is fixed on the machine body, and the output shaft is fixed with one end of the measuring head screw rod. The measuring head screw rod is a bidirectional screw rod. The two measuring nuts are respectively fixed with the two centering moving blocks, and respectively form a screw pair with two screw sections with opposite rotation directions on the measuring head screw rod.
Further, the central axis of the spiral wire coil coincides with the rotation axis of the workbench box body, and is located in the symmetrical plane of the two centering moving blocks.
Furthermore, the two-axis driving device comprises a Y-direction supporting platform, a Y-direction measuring guide rail, a Y-direction driving assembly, a Z-direction supporting platform and a Z-direction driving assembly. The Z-direction support platform and the machine body form a sliding pair and are driven by a Z-direction driving component. The Y-direction measuring guide rail is fixed on the Z-direction supporting platform. The Y-direction support platform and the Y-direction measuring guide rail form a sliding pair. The Y-direction support platform is driven by a Y-direction driving component.
Furthermore, the Z-direction driving assembly comprises a Z-direction lead screw, a Z-direction bearing, a Z-direction nut and a Z-direction motor. The bottom end of a vertically arranged Z-direction lead screw is supported on the bottom of the machine body through a Z-direction bearing. The Z-direction motor is arranged on the machine body, and an output shaft is fixed with the bottom end of the Z-direction lead screw. And a Z-direction nut fixed at the bottom of the Y-direction support platform and a Z-direction screw rod form a screw pair. The Y-direction driving assembly comprises a Y-direction lead screw, a Y-direction nut and a Y-direction motor. The Y-direction screw is supported on the Z-direction support platform. The Y-direction motor is fixed on the Z-direction supporting platform, and the output shaft is fixed with one end of the Y-direction screw rod. The Y-direction nut fixed on the Y-direction support platform and the Y-direction screw rod form a screw pair.
Further, the workbench rotation driving device comprises a worm gear reducer and a rotation driving motor. The worm reducer and the rotary driving motor are both fixed on the Y-direction supporting 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 reducer is vertically arranged upwards.
Furthermore, the wire coiling driving assembly comprises a driven bevel gear, a driving shaft and a wire coiling driving motor. The driving shaft is supported in the workbench box body. The wire coiling driving motor is fixed on the workbench box body, and the output shaft is fixed with one end of the driving shaft. The driving bevel gear is fixed on the driving shaft. The driven bevel gear is fixed with the spiral wire coil. The driving bevel gear is meshed with the driven bevel gear.
Furthermore, the top of the bidirectional clamping block is provided with a clamping bulge. The side surface close to the central axis of the spiral wire coil is an inward concave arc surface, and the side surface far away from the central axis of the spiral wire coil is an outward convex arc surface.
Further, the arrangement direction of the slits on the scale grating is parallel to the length direction of the measuring guide rail.
The measuring method of the bearing inner and outer ring channel measuring machine comprises an outer ring channel measuring method and an inner ring channel measuring method.
The outer ring channel measuring method specifically comprises the following steps:
step one, placing a workpiece to be measured on a top plate of a box body of a workbench, and enabling an inner ring of the bearing to be measured to be located between each two-way clamping block. The workpiece to be measured is a bearing outer ring.
And step two, the wire coiling driving assembly drives the spiral wire coiling to rotate, so that each bidirectional clamping block slides towards the central axis of the spiral disk, and the outer ring of the detected bearing is positioned and clamped from the outer side surface.
And step three, rotating the measuring rod motors in the two bidirectional measuring heads to enable the outer ends of the touch rods on the two measuring rods to be arranged back to back.
And fourthly, driving the workbench box body to rise by the workbench two-axis driving device until the lowest position of the channel on the inner side surface of the tested workpiece is aligned with the feeler levers of the two bidirectional measuring heads.
And step five, the bidirectional driving assembly drives the two bidirectional measuring heads to move back and forth until the piezoelectric sensors on the contact rods of the two measuring rods detect pressure. Recording the distance between the outer ends of the touch rods of the two measuring rods and the central axis of the spiral coil wire, and recording the two distances as r1、r2。
And step six, the two-way driving assembly drives the contact rods of the two measuring rods to be separated from the workpiece to be measured. The workbench rotating driving device drives the workbench box body to rotate by 90 degrees.
And step seven, the two-way driving assembly drives the two-way measuring heads to move back and forth until the piezoelectric sensors on the contact rods of the two measuring rods detect pressure. Recording the distance between the outer ends of the touch rods of the two measuring rods and the central axis of the spiral coil wire, and recording the two distances as r3、r4。
Step eight, calculating the diameter d of the channel of the workpiece to be measured as (r)1+r2+r3+r4) 2; concentricity error of workpiece channel to be measured
The inner ring channel measuring method specifically comprises the following steps:
step one, placing a workpiece to be measured on a top plate of a box body of a workbench, and enabling each bidirectional clamping block to be located on the inner side of an inner ring of a bearing to be measured. The measured workpiece is a bearing inner ring.
And step two, the wire coiling driving assembly drives the spiral wire coiling to rotate, so that each two-way clamping block slides towards the direction far away from the central axis of the spiral disk, and the inner ring of the tested bearing is positioned and clamped from the inner side surface.
And step three, rotating the measuring rod motors in the two bidirectional measuring heads to enable the outer ends of the touch rods on the two measuring rods to be oppositely arranged.
And fourthly, driving the workbench box body to rise by the workbench two-axis driving device until the lowest position of the channel on the outer side surface of the tested workpiece is positioned between the feeler levers of the two bidirectional measuring heads.
And step five, the two-way driving assembly drives the two-way measuring heads to move in opposite directions until the piezoelectric sensors on the contact rods of the two measuring rods detect pressure. Recording the distance between the outer ends of the touch rods of the two measuring rods and the central axis of the spiral coil wire, and recording the two distances as r1、r2。
And step six, the two-way driving assembly drives the contact rods of the two measuring rods to be separated from the workpiece to be measured. The rotary driving motor rotates to enable the workbench box body to rotate by 90 degrees.
And step seven, the two-way driving assembly drives the two-way measuring heads to move in opposite directions until the piezoelectric sensors on the contact rods of the two measuring rods detect pressure. Recording the distance between the outer ends of the touch rods of the two measuring rods and the central axis of the spiral coil wire, and recording the two distances as r3、r4。
Step eight, calculating the diameter d of the channel of the workpiece to be measured as (r)1+r2+r3+r4) 2; concentricity error of workpiece channel to be measured
The invention has the beneficial effects that:
1. the middle partition plate 36, the limiting plate 37 and the error compensation spring 38 are matched, so that the two measuring installation frames 6 can slide along with the corresponding centering moving block 33 and can also generate relative displacement with the corresponding centering moving block 33; the two bidirectional measuring heads can complete the measurement of two different radiuses under the drive of the same power source, and the efficiency of measuring the diameter of the bearing channel is greatly improved.
2. The clamping workbench designed by the invention is a rotatable workbench capable of concentrically clamping, and can realize the center positioning and clamping of the inner ring and the outer ring.
3. The measuring rod 9 can rotate, so that the measuring rod can extend into the groove of the outer ring of the bearing and can also extend into the groove of the inner ring of the bearing, and the diameter measurement of the groove of the outer ring and the diameter measurement of the groove of the inner ring of the bearing are compatible by matching with a clamping workbench.
4. The invention provides a structural scheme of automatic equipment for measuring the sizes of inner and outer ring channels of a rolling bearing, which is used for carrying out online detection on the size errors of the inner and outer ring channels of the bearing, grading the inner and outer rings of the bearing according to the detection result and providing a basis for pairing and assembling the inner and outer rings of the bearing, thereby improving the assembling precision and consistency of the bearing.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view taken along section A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a first schematic view of a two-way measuring head of the present invention (which is a cross-sectional view taken along section B-B of FIG. 1);
FIG. 4 is a cross-sectional view of section C-C of FIG. 1 in accordance with the present invention;
FIG. 5 is a second schematic view of the bidirectional measuring head of the present invention;
FIG. 6 is a schematic diagram of the measurement of the bearing outer race groove size of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figure 1, the channel measuring machine for the inner ring and the outer ring of the bearing comprises a machine body 3, a guide rail mounting plate 4, a channel measuring mechanism, a workbench two-shaft driving device, a workbench rotating driving device 24, a clamping workbench and a controller. The guide rail mounting plate 4 is fixed to the top of the body 3.
The two-axis table drive device includes a Y-direction support base 26, a Y-direction measurement guide 27, a Y-direction drive unit 25, a Z-direction support base 29, a Z-direction guide column 30, and a Z-direction drive unit. The bottom ends of the four vertically arranged Z-direction guide columns 30 are all fixed with the bottom of the machine body 3. Four corners of the Z-direction support base 29 and four Z-direction guide posts 30 constitute sliding pairs. The Z-direction driving assembly comprises a Z-direction lead screw 28, a Z-direction bearing 31, a Z-direction nut and a Z-direction motor 32. The bottom end of a vertically arranged Z-lead screw 28 is supported on the bottom of the body 3 by a Z-bearing 31. The Z-direction motor 32 is arranged on the machine body 3, and an output shaft is fixed with the bottom end of the Z-direction lead screw 28. The Z-nut fixed to the bottom of the Y-support 26 and the Z-lead screw 28 form a screw pair. Two mutually parallel Y-direction measurement rails 27 are fixed to a Z-direction support table 29. The bottom of the Y-direction support base 26 and the two Y-direction measurement rails 27 constitute a sliding pair. The Y-direction driving assembly 25 includes a Y-direction lead screw, a Y-direction nut, and a Y-direction motor. The Y-direction screw is supported by the Z-direction support base 29. The Y-direction motor is fixed to the Z-direction support base 29, and the output shaft is fixed to one end of the Y-direction lead screw. The Y-nut fixed to the Y-support 26 and the Y-screw constitute a screw pair.
The table rotation driving device 24 includes a worm reducer and a rotation driving motor. The worm reducer and the rotary drive motor are fixed to the Y-direction support base 26. 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 wire coiling driving component, a bidirectional clamping block 13, a driven shaft 15, a wire coiling bearing 16, a driving bearing 18, a spiral wire coiling 20 and a worktable box body 21. The spiral coil wire 20 is a double-wire spiral coil wire. The bottom of the table case 21 is fixed to an output shaft of the worm reducer. The vertically arranged driven shaft 15 is supported in the table box 21 by a wire winding bearing 16. The spiral coil wire 20 is fixed to the driven shaft 15. The central axis of the spiral coil wire 20 coincides with the output shaft axis of the worm gear reducer. The disc wire driving assembly includes a driven bevel gear 14, a driving bevel gear 17, a driving shaft 19, and a disc wire driving motor 22. The drive shaft 19 is supported in the table case 21 by the drive bearing 18. The wire coiling driving motor 22 is fixed on the workbench box body 21, and an output shaft is fixed with one end of the driving shaft 19. The driving bevel gear 17 is fixed on the driving shaft 19. The driven bevel gear 14 is fixed to the driven shaft 15. The driving bevel gear 17 is engaged with the driven bevel gear 14. The top plate of the workbench box body 21 is provided with a clamping sliding groove. The two bidirectional clamping blocks 13 and the clamping sliding grooves form a sliding pair. The bottom surface of the bidirectional clamping block 13 is provided with an arc-shaped groove. The arc-shaped groove on the bidirectional clamping block 13 corresponds to the shape of the spiral bulge on the spiral wire coil 20. The arc-shaped grooves of the two bidirectional clamping blocks 13 and the two spiral protrusions on the spiral wire coil 20 respectively form a spiral pair. The two bidirectional clamping blocks 13 are arranged on two sides of the central axis of the spiral wire coil 20 (namely, the central axis of the spiral wire coil 20 is positioned in the symmetrical planes of the two bidirectional clamping blocks 13). The top of the bidirectional clamping block 13 is provided with a clamping bulge. The clamping bulge extends out of the clamping chute of the workbench box body. The side close to the central axis of the spiral wire coil 20 is an inward concave arc surface (the inward concave arc surface can realize the central positioning of the outer side surface of the outer ring), and the side far away from the central axis of the spiral wire coil 20 is an outward convex arc surface (the inward concave arc surface can realize the central positioning of the inner side surface of the inner ring). Through the rotation of the spiral wire coil 20, the two bidirectional clamping blocks 13 can be driven to synchronously slide towards or away from each other, so that the outer ring or the inner ring of the tested bearing can be clamped.
As shown in fig. 1, 3, 4 and 5, the channel measuring mechanism includes a measuring rail 5, a scale grating 35, a bidirectional measuring head and a bidirectional driving assembly. The measuring guide 5 is fixed to the bottom surface of the guide mounting plate 4. The scale grating 35 is fixed to one side of the body 3. The arrangement direction of the slits on the scale grating 35 is parallel to the longitudinal direction of the measurement rail 5. The bidirectional measuring head comprises a measuring mounting frame 6, a measuring rod motor 7, a guide rail seat 8, a measuring rod 9, a measuring rod bearing 10, a measuring rod seat 11, a centering moving block 33, a middle partition plate 36, a limiting plate 37, an error compensation spring 38 and a grating reading head 34. The rail base 8 and the measuring rail 5 form a sliding pair. The measuring mounting frame 6 is fixed with the guide rail seat 8. A compensating slide rail 39 is fixed on the measuring mounting frame 6. The central axis of the compensating slide 39 is parallel to the central axis of the measuring rail 5. A compensation slide 40 is fixed on the centering moving block 33. The compensation slide 40 and the compensation slide 39 form a sliding pair. An intermediate partition plate 36 is fixed to the centering moving block 33. Limiting plates 37 are fixed at two ends of the measuring mounting frame 6. The intermediate partition 36 is located between the two limit plates 37. One ends of the two error compensation springs 38 are fixed to both side surfaces of the intermediate partition 36, and the other ends thereof are fixed to the opposite side surfaces of the two stopper plates 37. The grating read head 34 is fixed to the measurement mounting 6 and is disposed towards the scale grating 24. The measuring rod seat 11 is fixed at the bottom of the measuring installation frame 6. The top end of the vertically arranged measuring rod 9 is supported on a measuring rod bearing 11 via a measuring rod bearing 10. The bottom end of the measuring rod 9 is provided with a feeler lever. The feeler lever is horizontally arranged and used for extending into a groove of an outer ring or an inner ring of the tested bearing. And a piezoelectric sensor is arranged at the outer end of the feeler lever. The measuring rod motor 7 is fixed with the measuring installation frame, and the output shaft is fixed with the top end of the measuring rod 9.
The bidirectional measuring heads are two in total. The central axis of the spiral coil wire 20 is located in the plane of symmetry of the two centered mobile blocks 33. When the outer end of the feeler lever contacts the workpiece 12 to be measured, the piezoelectric transducer is pressed to send out an electric signal. The bidirectional driving assembly comprises a measuring bearing 1, a measuring head screw rod 2, a measuring nut and a measuring driving motor 23. The measuring head screw rod 2 is supported on the top of the machine body 3 through a measuring bearing 1 and is positioned right above the clamping workbench. The measurement driving motor 23 is fixed on the machine body 3, and the output shaft is fixed with one end of the measuring head screw rod 2. The measuring head screw rod 2 adopts a bidirectional screw rod. The two measuring nuts are fixed with the two centering moving blocks 33 respectively, and form a screw pair with two screw sections on the measuring head screw rod 2 in opposite rotation directions respectively.
The rotation of the measurement driving motor 23 can drive the two centering moving blocks 33 to synchronously move in the opposite direction or in the opposite direction, and the cooperation of the middle partition plate 36, the limiting plate 37 and the error compensation spring 38 can enable the two measurement mounting frames 6 to slide along with the corresponding centering moving blocks 33 and simultaneously to relatively displace with the corresponding centering moving blocks 33; the two bidirectional measuring heads are driven by the same power source to complete the measurement of two different radiuses.
Control interfaces of the Y-direction motor, the Z-direction motor 32, the rotary driving motor, the wire coiling driving motor 22, the measurement driving motor 23 and the two measuring rod motors 7 are connected with the controller through motor drivers. And the signal output interfaces of the two piezoelectric sensors are respectively connected with the two analog signal input interfaces of the controller. The signal output interfaces of the two grating reading heads 34 are respectively connected with the two square wave signal input interfaces of the controller. The controller adopts a singlechip or a PLC.
The measuring method of the bearing inner and outer ring channel measuring machine comprises an outer ring channel measuring method and an inner ring channel measuring method.
The outer ring channel measuring method specifically comprises the following steps:
step one, the wire coiling driving motor 22 rotates, so that the distance from each bidirectional clamping block to the central axis of the driving spiral disk is smaller than the outer radius of the measured workpiece. The workpiece 12 to be measured is a bearing outer ring. The workpiece 12 to be measured is placed on the top plate of the workbench box 21, and the inner ring of the bearing to be measured is positioned between the two bidirectional clamping blocks 13.
And step two, the wire coiling driving motor 22 rotates forwards, the two bidirectional clamping blocks 13 slide oppositely, and the outer ring of the detected bearing is positioned and clamped from the outer side surface.
And step three, rotating the measuring rod motors 7 in the two bidirectional measuring heads to enable the outer ends of the touch rods on the two measuring rods 9 to be arranged in a back-to-back mode. The measuring drive motor 23 rotates so that the distance between the outer ends of the two feeler levers is smaller than the inner diameter of the workpiece 12 to be measured. In the rotation process of the measuring driving motor 23, the two grating reading heads 34 continuously read the displacement of the two grating reading heads, so that the distance between the outer end of the feeler lever and the central axis of the spiral wire coil 20 is determined by combining the relative spatial positions of the grating reading heads 34 and the outer end of the corresponding feeler lever.
And fourthly, the Z-direction motor 32 rotates forwards to drive the workbench box body 21 to rise until the lowest position of the channel on the inner side surface of the workpiece 12 to be measured is aligned with the feeler levers of the two bidirectional measuring heads.
And step five, the measurement driving motor 23 rotates reversely, so that the two bidirectional measuring heads move oppositely until the piezoelectric sensors on the feeler levers of the two measuring levers 9 detect pressure, and error compensation springs 38 are arranged in the two bidirectional measuring heads and are compressed by more than 0.1 time of the inner diameter of the outer ring of the measured bearing. The outer ends of the feelers recording two measuring rods 9 and the central shaft of the spiral wire coil 20The distance of the line, the two distances being denoted r1、r2。r1、r2Respectively by two grating read heads 34.
Determining r1、r2When the two bidirectional measuring heads move forwards and backwards, the Y-direction motor rotates forwards and backwards to enable the measured workpiece to move forwards and backwards by 0.1 time of the inner diameter of the measured bearing along the direction vertical to the measuring guide rail, and the maximum values detected by the two bidirectional measuring heads in the moving process are respectively used as r1、r2。
And step six, measuring the positive rotation of the driving motor 23, so that the contact rods of the two measuring rods 9 are separated from the workpiece 12 to be measured. The rotary driving motor rotates to enable the workbench box body to rotate by 90 degrees.
And step seven, the measurement driving motor 23 rotates reversely, so that the two bidirectional measuring heads move oppositely until the piezoelectric sensors on the contact rods of the two measuring rods 9 detect pressure, and error compensation springs 38 are arranged in the two bidirectional measuring heads and are compressed by more than 0.1 time of the inner diameter of the outer ring of the measured bearing. Recording the distance between the outer ends of the touch rods of the two measuring rods 9 and the central axis of the spiral wire coil 20, and respectively recording the two distances as r3、r4。
Determining r3、r4When the two bidirectional measuring heads move forwards and backwards, the Y-direction motor rotates forwards and backwards to enable the measured workpiece to move forwards and backwards by 0.1 time of the inner diameter of the measured bearing along the direction vertical to the measuring guide rail, and the maximum values detected by the two bidirectional measuring heads in the moving process are respectively used as r3、r4。
Step eight, as shown in fig. 6, calculating the diameter d ═ r of the measured workpiece channel (r)1+r2+r3+r4) 2; concentricity error of workpiece channel to be measured
The inner ring channel measuring method specifically comprises the following steps:
step one, the wire coiling driving motor 22 rotates, so that the distance from the middle point of the outer side surface of each bidirectional clamping block to the central axis of the driving spiral disk is smaller than the inner radius and the outer radius of the workpiece to be measured. The workpiece 12 to be measured is a bearing inner ring. And placing the workpiece 12 to be measured on the top plate of the workbench box body 21, and enabling the bidirectional clamping block 13 to be positioned on the inner side of the bearing inner ring to be measured.
And step two, the wire coiling driving motor 22 rotates reversely, the two bidirectional clamping blocks 13 slide back to back, and the inner ring of the detected bearing is positioned and clamped from the inner side surface.
And step three, rotating the measuring rod motors 7 in the two bidirectional measuring heads to enable the outer ends of the touch rods on the two measuring rods 9 to be oppositely arranged. The measurement drive motor 23 rotates so that the distance between the two bidirectional measurement heads is greater than the outer diameter of the workpiece 12 to be measured. In the rotation process of the measuring driving motor 23, the two grating reading heads 34 continuously read the displacement of the two grating reading heads, so that the distance between the outer end of the feeler lever and the central axis of the spiral wire coil 20 is determined by combining the relative spatial positions of the grating reading heads 34 and the outer end of the corresponding feeler lever.
And fourthly, the Z-direction motor 32 rotates forwards to drive the workbench box body 21 to rise until the lowest position of the channel on the outer side surface of the workpiece 12 to be measured is positioned between the feeler levers of the two bidirectional measuring heads.
And step five, measuring the positive rotation of the driving motor 23 to enable the two bidirectional measuring heads to move oppositely until the piezoelectric sensors on the contact rods of the two measuring rods 9 detect the pressure, and error compensation springs 38 are arranged in the two bidirectional measuring heads and are compressed by more than 0.1 time of the outer diameter of the inner ring of the measured bearing. Recording the distance between the outer ends of the touch rods of the two measuring rods 9 and the central axis of the spiral wire coil 20, and respectively recording the two distances as r1、r2。
Determining r1、r2When the two bidirectional measuring heads move forwards and backwards, the Y-direction motor rotates forwards and backwards to enable the measured workpiece to move forwards and backwards by 0.1 time of the inner diameter of the measured bearing along the direction vertical to the measuring guide rail, and the maximum values detected by the two bidirectional measuring heads in the moving process are respectively used as r1、r2。
And step six, measuring the reverse rotation of the driving motor 23, so that the touch rods of the two measuring rods 9 are separated from the workpiece to be measured. The rotary driving motor rotates to enable the workbench box body to rotate by 90 degrees.
Step seven, measuring the positive rotation of the driving motor 23, so that the two bidirectional measuring heads move oppositely until the piezoelectric sensors on the contact rods of the two measuring rods 9 detect the pressure, and the two bidirectional measuring heads are double-pressure-sensitiveThe error compensation spring 38 is compressed by 0.1 times and is located above the outer diameter of the inner ring of the bearing to be measured. Recording the distance between the outer ends of the touch rods of the two measuring rods 9 and the central axis of the spiral wire coil 20, and respectively recording the two distances as r3、r4。
Determining r3、r4When the two bidirectional measuring heads move forwards and backwards, the Y-direction motor rotates forwards and backwards to enable the measured workpiece to move forwards and backwards by 0.1 time of the inner diameter of the measured bearing along the direction vertical to the measuring guide rail, and the maximum values detected by the two bidirectional measuring heads in the moving process are respectively used as r3、r4。
Step eight, calculating the diameter d of the channel of the workpiece to be measured as (r)1+r2+r3+r4) 2; concentricity error of workpiece channel to be measured
Claims (10)
1. A bearing inner and outer ring channel measuring machine comprises a machine body, a guide rail mounting plate, a channel measuring mechanism, a workbench two-axis driving device, a workbench rotation driving device and a clamping workbench; the method is characterized in that: the two-axis driving device of the workbench is arranged on the machine body; the workbench rotary driving device is arranged on the workbench two-shaft driving device; the two-axis driving device of the workbench is arranged on the machine body;
the clamping workbench comprises a wire coiling driving assembly, a bidirectional clamping block, a spiral wire coiling and a workbench box body; the workbench box body is arranged on the workbench rotary driving device; the spiral wire coil is supported in the workbench box body; the spiral wire coil is driven by a wire coil driving component; the two bidirectional clamping blocks and the workbench box body form a sliding pair; the bottom surface of the bidirectional clamping block is provided with an arc-shaped groove; the arc-shaped groove on the bidirectional clamping block is respectively matched with the two spiral protrusions on the spiral wire coil; two bidirectional clamping blocks are arranged on two sides of the central axis of the spiral wire coil in a centering manner;
the channel measuring mechanism comprises a measuring guide rail, a scale grating, a bidirectional measuring head and a bidirectional driving assembly; the measuring guide rail and the scale grating are both fixed with the machine body; the bidirectional measuring head comprises a measuring mounting frame, a measuring rod motor, a measuring rod, a centering moving block, a middle partition plate, a limiting plate, an error compensation spring and a grating reading head; the measuring mounting frame and the measuring guide rail form a sliding pair; the centering moving block and the measuring mounting frame form a sliding pair; a middle clapboard is fixed on the centering moving block; limiting plates are fixed at two ends of the measuring mounting frame; the middle clapboard is positioned between the two limiting plates; one ends of the two error compensation springs are fixed with the middle partition plate, and the other ends of the two error compensation springs are respectively fixed with the two limiting plates; the grating reading head is fixed on the measuring mounting frame and faces the scale grating; the top end of the measuring rod is supported on the measuring installation frame; the measuring rod is driven by a measuring rod motor; the bottom end of the measuring rod is provided with a touch rod; the outer end of the feeler lever is provided with a piezoelectric sensor;
the two bidirectional measuring heads are two in total; the centering moving blocks in the two bidirectional measuring heads are synchronously and reversely driven by the bidirectional driving component.
2. The machine of claim 1 for measuring inner and outer race grooves of a bearing, wherein: the bidirectional driving assembly comprises a measuring head screw rod, a measuring nut and a measuring driving motor; the measuring head screw rod is supported at the top of the machine body; the measuring driving motor is fixed on the machine body, and an output shaft is fixed with one end of the measuring head screw rod; the measuring head screw rod is a bidirectional screw rod; the two measuring nuts are respectively fixed with the two centering moving blocks, and respectively form a screw pair with two screw sections with opposite rotation directions on the measuring head screw rod.
3. The machine of claim 1 for measuring inner and outer race grooves of a bearing, wherein: the central axis of the spiral wire coil is superposed with the rotation axis of the workbench box body and is positioned in the symmetrical plane of the two centering moving blocks.
4. The machine of claim 1 for measuring inner and outer race grooves of a bearing, wherein: the two-axis driving device comprises a Y-direction supporting platform, a Y-direction measuring guide rail, a Y-direction driving assembly, a Z-direction supporting platform and a Z-direction driving assembly; the Z-direction supporting platform and the machine body form a sliding pair and are driven by a Z-direction driving component; the Y-direction measuring guide rail is fixed on the Z-direction supporting platform; the Y-direction support platform and the Y-direction measuring guide rail form a sliding pair; the Y-direction support platform is driven by a Y-direction driving component.
5. The machine of claim 4 for measuring inner and outer race grooves of a bearing, wherein: the Z-direction driving assembly comprises a Z-direction lead screw, a Z-direction bearing, a Z-direction nut and a Z-direction motor; the bottom end of a vertically arranged Z-direction lead screw is supported on the bottom of the machine body through a Z-direction bearing; the Z-direction motor is arranged on the machine body, and an output shaft is fixed with the bottom end of the Z-direction lead screw; a Z-direction nut fixed at the bottom of the Y-direction support platform and a Z-direction screw rod form a screw pair; the Y-direction driving assembly comprises a Y-direction lead screw, a Y-direction nut and a Y-direction motor; the Y-direction lead screw is supported on the Z-direction support platform; the Y-direction motor is fixed on the Z-direction support platform, and an output shaft is fixed with one end of the Y-direction screw rod; the Y-direction nut fixed on the Y-direction support platform and the Y-direction screw rod form a screw pair.
6. The machine of claim 1 for measuring inner and outer race grooves of a bearing, wherein: the workbench rotation driving device comprises a worm gear reducer and a rotation driving motor; the worm reducer and the rotary driving motor are both fixed on the Y-direction supporting 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 reducer is vertically arranged upwards.
7. The machine of claim 1 for measuring inner and outer race grooves of a bearing, wherein: the wire coiling driving component comprises a driven bevel gear, a driving shaft and a wire coiling driving motor; the driving shaft is supported in the workbench box body; the wire coiling driving motor is fixed on the workbench box body, and an output shaft is fixed with one end of the driving shaft; the driving bevel gear is fixed on the driving shaft; the driven bevel gear is fixed with the spiral wire coil; the driving bevel gear is meshed with the driven bevel gear.
8. The machine of claim 1 for measuring inner and outer race grooves of a bearing, wherein: clamping bulges are arranged at the tops of the two-way clamping blocks; the side surface close to the central axis of the spiral wire coil is an inward concave arc surface, and the side surface far away from the central axis of the spiral wire coil is an outward convex arc surface.
9. The machine of claim 1 for measuring inner and outer race grooves of a bearing, wherein: the arrangement direction of the slits on the scale grating is parallel to the length direction of the measuring guide rail.
10. The measuring method of the inner and outer race raceway measuring machine for bearings according to claim 1, characterized by comprising: the method comprises an outer ring channel measuring method and an inner ring channel measuring method;
the outer ring channel measuring method specifically comprises the following steps:
placing a workpiece to be measured on a top plate of a box body of a workbench, and enabling an inner ring of a bearing to be measured to be located between each two-way clamping block; the workpiece to be measured is a bearing outer ring;
secondly, the spiral wire driving assembly drives the spiral wire to rotate, so that each bidirectional clamping block slides towards the central axis of the spiral disk, and the outer ring of the bearing to be measured is positioned and clamped from the outer side surface;
step three, rotating the measuring rod motors in the two bidirectional measuring heads to enable the outer ends of the touch rods on the two measuring rods to be arranged in a back-to-back manner;
fourthly, the two-axis driving device of the workbench drives the box body of the workbench to rise until the lowest part of the channel on the inner side surface of the workpiece to be measured is aligned with the feeler levers of the two bidirectional measuring heads;
step five, the bidirectional driving assembly drives the two bidirectional measuring heads to move back and forth until the piezoelectric sensors on the touch rods of the two measuring rods detect pressure; recording the distance between the outer ends of the touch rods of the two measuring rods and the central axis of the spiral coil wire, and recording the two distances as r1、r2；
Sixthly, the two-way driving assembly drives the contact rods of the two measuring rods to be separated from the workpiece to be measured; the workbench rotating driving device drives the workbench box body to rotate for 90 degrees;
step seven, the bidirectional driving component drives twoThe bidirectional measuring heads move back and forth until the piezoelectric sensors on the contact rods of the two measuring rods detect pressure; recording the distance between the outer ends of the touch rods of the two measuring rods and the central axis of the spiral coil wire, and recording the two distances as r3、r4；
Step eight, calculating the diameter d of the channel of the workpiece to be measured as (r)1+r2+r3+r4) 2; concentricity error of workpiece channel to be measured
The inner ring channel measuring method specifically comprises the following steps:
placing a workpiece to be measured on a top plate of a box body of a workbench, and enabling each bidirectional clamping block to be located on the inner side of an inner ring of a bearing to be measured; the workpiece to be measured is a bearing inner ring;
secondly, the spiral wire driving assembly drives the spiral wire to rotate, so that each two-way clamping block slides towards the direction far away from the central axis of the spiral disk, and the inner ring of the bearing to be measured is positioned and clamped from the inner side surface;
step three, rotating the measuring rod motors in the two bidirectional measuring heads to enable the outer ends of the touch rods on the two measuring rods to be oppositely arranged;
fourthly, the two-axis driving device of the workbench drives the box body of the workbench to rise until the lowest position of a channel on the outer side surface of the tested workpiece is positioned between the feeler levers of the two bidirectional measuring heads;
step five, the two-way driving assembly drives the two-way measuring heads to move oppositely until the piezoelectric sensors on the contact rods of the two measuring rods detect pressure; recording the distance between the outer ends of the touch rods of the two measuring rods and the central axis of the spiral coil wire, and recording the two distances as r1、r2；
Sixthly, the two-way driving assembly drives the contact rods of the two measuring rods to be separated from the workpiece to be measured; the rotary driving motor rotates to enable the workbench box body to rotate for 90 degrees;
step seven, the two-way driving assembly drives the two-way measuring heads to move in opposite directions until the piezoelectric sensors on the contact rods of the two measuring rods detect the pressureForce; recording the distance between the outer ends of the touch rods of the two measuring rods and the central axis of the spiral coil wire, and recording the two distances as r3、r4；
Step eight, calculating the diameter d of the channel of the workpiece to be measured as (r)1+r2+r3+r4) 2; concentricity error of workpiece channel to be measured
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398576.0A CN110160453B (en) | 2019-05-14 | 2019-05-14 | Bearing inner and outer ring channel measuring machine and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398576.0A CN110160453B (en) | 2019-05-14 | 2019-05-14 | Bearing inner and outer ring channel measuring machine and measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110160453A CN110160453A (en) | 2019-08-23 |
| CN110160453B true CN110160453B (en) | 2020-09-22 |
Family
ID=67634523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910398576.0A Active CN110160453B (en) | 2019-05-14 | 2019-05-14 | Bearing inner and outer ring channel measuring machine and measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110160453B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521144A (en) * | 2020-05-13 | 2020-08-11 | 山西汾西重工有限责任公司 | Concentricity processing method and system |
| CN111879245B (en) * | 2020-07-31 | 2022-07-08 | 上海大学 | Automatic precision measuring device for vehicle part product |
| CN111964551B (en) * | 2020-08-03 | 2022-04-29 | 山东朝阳轴承有限公司 | Bearing roller size and circular run-out detection device and use method |
| CN112033324B (en) * | 2020-08-12 | 2021-09-21 | 江南工业集团有限公司 | Detection method for wall thickness and wall thickness difference of double cones |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924481Y (en) * | 2006-06-06 | 2007-07-18 | 刘英涛 | Automatic measuring manipulator for ball bearing inner groove |
| CN203612635U (en) * | 2013-11-26 | 2014-05-28 | 杭州电子科技大学 | Auxiliary clamping device for steel pipes |
| WO2017098814A1 (en) * | 2015-12-10 | 2017-06-15 | 日本精工株式会社 | Device for measuring weight of vehicle |
| CN206095196U (en) * | 2016-04-21 | 2017-04-12 | 江苏师范大学 | Turn to bearing blowout patche channel parameter measuring instrument |
| CN206205823U (en) * | 2016-07-25 | 2017-05-31 | 东营市创元石油机械制造有限公司 | Oil drilling remote control diameter variable stabilizer |
| CN207816238U (en) * | 2018-02-12 | 2018-09-04 | 无锡易联科技有限公司 | A kind of measuring device of bearing outer ring inner diameter measurement machine |
| CN108955593A (en) * | 2018-07-16 | 2018-12-07 | 中国科学院沈阳自动化研究所 | Bearing internal external circle dimension automatic detection device |
| CN109341486B (en) * | 2018-11-12 | 2020-07-31 | 安徽华旦机械制造有限公司 | Systematic measuring device and measuring method for inner ring and outer ring of channel bearing |
-
2019
- 2019-05-14 CN CN201910398576.0A patent/CN110160453B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110160453A (en) | 2019-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110160453B (en) | Bearing inner and outer ring channel measuring machine and measuring method thereof | |
| CN207300183U (en) | A kind of laser measuring device for measuring for the detection of disc wheel flatness | |
| CN102022990B (en) | Large gear measuring instrument | |
| CN110160454B (en) | Bearing assembly clearance on-line measuring machine and clearance measuring method thereof | |
| CN110335832A (en) | A kind of good chip detecting equipment of contact with regulatory function | |
| CN113804141B (en) | Outer diameter detector | |
| CN110842767A (en) | Automatic adjusting workbench for grinding | |
| CN201897470U (en) | Large gear measuring instrument | |
| CN107150261A (en) | Axial workpiece profile measurer and its application | |
| CN107990828B (en) | Quick measuring device for dimension and form and position tolerance of driving axle housing parts | |
| CN111156941B (en) | Vehicle brake block surface full run-out detection device | |
| CN112344885A (en) | Step shaft flatness detection device and flatness detection method thereof | |
| CN111595286A (en) | Circle checking equipment for outer circle of gear ring of automobile synchronizer | |
| CN115096567B (en) | Test device and test method for testing reliability of swing angle milling head | |
| CN113945155B (en) | High-precision RV reducer crankshaft detection device | |
| CN104191360A (en) | Tool device for helical surface forming | |
| CN112444224B (en) | Intelligent detection system and method for lens aperture and thickness | |
| CN112902849B (en) | Measure vice double-tooth error's of worm gear structure | |
| CN115289938A (en) | Propeller rotating shaft swing amplitude detection device and detection method thereof | |
| CN112781539B (en) | Outer diameter testing device for direct-drive motorized spindle production | |
| CN113218347A (en) | Device for coaxially assembling and measuring rotating member | |
| CN219656822U (en) | Gear part detection device | |
| CN211783315U (en) | Quality detection device for main threaded hole of reactor pressure vessel | |
| CN112710211B (en) | Measuring device for diameter of shaft part | |
| CN114279328B (en) | Special measuring equipment of ultrahigh precision RV reduction gear bent axle |
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: 20201221 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 |