CN117346702B - Main bearing rotation coaxiality detection equipment - Google Patents
Main bearing rotation coaxiality detection equipment Download PDFInfo
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- CN117346702B CN117346702B CN202311303142.0A CN202311303142A CN117346702B CN 117346702 B CN117346702 B CN 117346702B CN 202311303142 A CN202311303142 A CN 202311303142A CN 117346702 B CN117346702 B CN 117346702B
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- 238000001514 detection method Methods 0.000 title claims abstract description 116
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 239000010720 hydraulic oil Substances 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims 1
- 239000000523 sample Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 230000009191 jumping Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/34—Devices for discharging articles or materials from conveyor
- B65G47/38—Devices for discharging articles or materials from conveyor by dumping, tripping, or releasing load carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses main bearing rotation coaxiality detection equipment, and belongs to the technical field of bearing detection. The main bearing detection device comprises a mounting base, a feeding robot, a high-pressure air gun, a conveying belt and a plurality of main bearings to be detected, wherein a shell is arranged on the mounting base, an end cover is arranged at one end of the shell, a detection chamber is formed between the shell and the end cover, a feeding pipe is communicated with the end cover, the feeding robot is arranged on one side of the feeding pipe, a positioning mechanism is arranged on the shell and is used for rapidly positioning the main bearings, a transmitting mechanism is arranged on the end cover, the positioning mechanism and the transmitting mechanism are both positioned in the detection chamber, a blanking hole is formed in the bottom of the shell, the conveying belt is positioned below the blanking hole, the high-pressure air gun is positioned in the detection chamber, the main bearings are fed into the detection chamber by the feeding robot, then the main bearings are inserted into the positioning pins, and the main bearings are driven by the detection arm to move for detection.
Description
Technical Field
The invention relates to the technical field of bearing detection, in particular to main bearing rotation coaxiality detection equipment.
Background
The bearing is an important part in modern mechanical equipment, the main function of the bearing is to support a mechanical rotating body, the friction coefficient in the motion process of the mechanical rotating body is reduced, the rotation precision of the bearing is guaranteed, the rotation precision of the bearing is a core index of the bearing production technology, the larger bearing is often used in a scene with larger precision requirements, the precision of the bearing is mainly embodied on rotation coaxiality, if coaxiality errors exist between an inner ring and an outer ring of the bearing, the problems in the manufacturing process cannot be compensated even if the aligning roller bearing is used, the coaxiality is embodied on two jumping errors of axial jumping and radial jumping, the axial jumping and the radial jumping are static single-line detection, and in order to adapt to the assembly precision of each position of the bearing, the bearing and a detection probe are often required to move, so that a full-jump detection method of end face jumping and contour jumping with higher detection precision is formed.
However, such detection is usually performed manually, which is time-consuming and labor-consuming, and the contact detection often hinders the relative mobility between the bearing and the probe in the detection process, so that the detection result is error, and the abrasion of the detection probe also becomes a great problem affecting the detection accuracy of the bearing.
Disclosure of Invention
The invention aims to provide main bearing rotation coaxiality detection equipment so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the main bearing rotating coaxiality detection device comprises a mounting base, a feeding robot, a high-pressure air gun, a conveying belt and a plurality of main bearings to be detected, wherein a shell is arranged on the mounting base, an end cover is arranged at one end of the shell, a detection chamber is formed between the shell and the end cover, a feeding pipe is communicated with the end cover, the feeding robot is arranged on one side of the feeding pipe, a positioning mechanism is arranged on the shell, the main bearings are rapidly positioned by the positioning mechanism, a transmitting mechanism is arranged on the end cover, the positioning mechanism and the transmitting mechanism are both positioned in the detection chamber, a blanking hole is formed in the bottom of the shell, the conveying belt is positioned below the blanking hole, the high-pressure air gun is positioned in the detection chamber, the feeding robot feeds the main bearings into the detection chamber through the feeding pipe, then the main bearings are inserted into the positioning pin, and the main bearings are driven to move by the detection arm to be detected.
Further, the one end that the end cover was kept away from at the casing middle part is sunken to the detection chamber is inside, sunken position department is provided with servo motor, positioning mechanism is including detecting the arm, servo motor's motor shaft runs through the casing and is connected with detecting the arm, the both ends symmetry of detecting the arm is provided with a pair of locating pin, every the locating pin rotates with detecting the arm to be connected, a pair of open slot has still been seted up to the symmetry on the detecting the arm.
Further, piston cavity and floating cavity have been seted up to every the inside of locating pin, through aperture intercommunication between piston cavity and the floating cavity, every the locating pin corresponds the position department slidable mounting of floating cavity has four positioning fixture blocks, four positioning fixture blocks are annular equipartition on the locating pin, the main bearing housing is established in the outside of four positioning fixture blocks, the internally mounted of piston cavity has piston block, spring, piston block slidable mounting is in the piston cavity, the spring is located one side that the piston block kept away from the floating cavity, every the locating pin still is provided with a rotation connector link, it has hydraulic oil to fill between floating cavity and the piston block, the inner circle of main bearing and positioning fixture block contact, and the inside slip of all positioning fixture block atress to the locating pin for the space of floating cavity reduces, and the inside hydraulic oil of floating cavity is through aperture extrusion to the piston cavity, and the piston cavity increases and makes the piston block overcome the spring and slide, and the positive pressure of spring also acts on through the piston block, and hydraulic oil makes the positioning fixture block chucking from inside, prevents to drop in the piston cavity, and the main bearing is to the main bearing of four in the axial displacement is fixed to the relative accuracy when detecting the inside race, and the radial displacement is fixed to the relative position of bearing.
Further, a sliding block is slidably arranged in each opening groove, each sliding block is made of a magnetic material, a rotating connecting buckle is also arranged on each sliding block, a short pin is arranged on one side, away from the rotating connecting buckle, of each sliding block, the positioning mechanism further comprises two connecting rods, one end of each connecting rod is respectively connected with the rotating connecting buckle on the positioning pin in a switching mode, one end of each connecting rod is respectively connected with the rotating connecting buckle on the sliding block in a switching mode, the control system controls the servo motor to drive the detection arm to rotate, the sliding block is a driven piece, the short pin of the sliding block is limited in the sliding groove, and when the detection arm drives the sliding block to rotate, the short pin slides along the sliding groove to enable the sliding block to slide in the opening groove, and when the sliding block moves, the connecting rods drive the positioning pins to rotate at the tail ends of the detection arm;
in the detection stage, the sliding block is farthest from the detection arm, the positioning pin is pulled by the connecting rod to rotate to a state of forming an included angle of 90 degrees with the detection arm, the main bearing is convenient to feed and position, after detection, the main bearing moves to the bottommost part, in the moving process, the sliding block moves to the position closest to the detection arm, the gesture of the positioning pin and the detection arm are in the same straight line, at the moment, the magnetic force of the sliding block is maximum to the magnetic attraction of the piston block in the positioning pin, the piston block moves upwards again, hydraulic oil in the floating cavity upwards slides to the inside of the positioning pin, the clamping force of the positioning block on the inner ring of the main bearing is relaxed, the main bearing falls off from the positioning pin to the conveying belt from the blanking hole, the two positioning pins are used for alternately working, the detection efficiency of the bearing is improved, the automatic clamping and positioning and blanking of the main bearing are realized through the arrangement of the positioning mechanism, and errors caused by manual clamping and positioning are reduced.
Further, the shell is further provided with a sliding groove, the sliding groove is located at the concave position of the shell and located in the detection chamber, the shape of the sliding groove is composed of four sections of circular arcs, the diameter of the circular arc close to the upper portion of the shell is larger than that of the circular arc close to the lower portion of the shell, the other two sections of circular arcs are in transitional connection with the circular arcs close to the upper end and the lower end of the shell, and the short pins on the two sliding blocks are slidably installed in the sliding groove.
Further, the emission mechanism comprises a parabolic mirror and a light-sensing plate, the light-sensing plate is arranged at the upper end of the inside of the shell, the parabolic mirror is arranged in the detection chamber, an opening of the parabolic mirror faces the light-sensing plate, a light barrier is arranged between the light-sensing plate and the parabolic mirror and is arranged on the end cover, the width of the light barrier is smaller than the diameter of the main bearing, the laser emitter emits a strip beam, the strip beam irradiates the reflecting mirror through the through groove, the reflecting mirror enables the strip beam to be reflected onto the parabolic mirror at an angle of a vertical angle, the second motor is electrified to drive the driving bevel gear to rotate, the driving bevel gear drives the driven bevel gear to rotate, the driven bevel gear drives the reflecting mirror to rotate through a rotating shaft, the reflecting mirror rotates to enable the reflected beam to pass through the parabolic mirror, the parabolic mirror reflects light reflected at any angle onto the light-sensing plate again in a parallel light mode, the light beam blocked by the main bearing cannot irradiate onto the light-sensing plate, the light beam continuously scans on the parabolic mirror under the state that the reflecting mirror rapidly rotates, the main bearing left behind the main bearing on the light-sensing plate projects a clear projection contour along with the rotation of the main bearing in the state that the main bearing is fluctuated.
Further, a baffle is arranged on one side, far away from the end cover, of the parabolic mirror, a second motor is arranged on the baffle, a driving bevel gear is arranged on a motor shaft of the second motor, a rotating shaft is arranged at the position of an opening of the parabolic mirror, the rotating shaft is rotatably arranged on the baffle, one end of the rotating shaft is provided with a driven bevel gear, the driven bevel gear is in meshed transmission with the driving bevel gear, a reflecting mirror is arranged at the other end of the rotating shaft, a high-speed air flow is ejected by a high-pressure air gun in a detection stage, the main bearing is blown by the air flow to rotate at a high speed, the baffle is arranged to prevent the main bearing reflected by the reflecting mirror from leaving a ray shadow in direct irradiation, the original size of the main bearing is reflected by parallel light projection, the ray shadow projected by the main bearing is the enlarged size of the main bearing contour, and the edge of the main bearing is divergently blurred, the main bearing is not detected by the light source plate, and the control system judges the light shadow contour of the main bearing in rotation by utilizing the light plate.
Further, contained angle between speculum plane and the axis of pivot is 45, emission mechanism includes laser emitter, laser emitter is located the detection room outside, logical groove has been seted up to the end cover to the position department of stress light emitter, the height in logical groove is the same with the rotation center position of speculum, compares with the mode that contact probe detected beating, and shadow projection detection method is non-contact detection, has avoided the probe to detect the influence of beating in to the bearing rotation completely, has avoided the error that the probe produced in the detection simultaneously, has realized the detection of bearing axiality.
Compared with the prior art, the invention has the following beneficial effects:
1. the four positioning clamping blocks are utilized to enable the clamping of the bearing to be centered, after the position of the inner ring of the main bearing is relatively fixed, the clamping is rapid, the process is stable, the accuracy of the bearing is detected by detecting the relative displacement generated by axial and radial runout of the outer ring of the main bearing during high-speed rotation, the two positioning pins are utilized to work alternately, the detection efficiency of the bearing is improved, the automatic clamping and positioning and blanking of the main bearing are realized through the arrangement of the positioning mechanism, the two hands of a person are liberated, and the error generated by manual clamping and positioning is reduced.
2. The laser emitter is used for emitting the strip-shaped light beam, the strip-shaped light beam irradiates the reflecting mirror through the through groove, the reflecting mirror enables the strip-shaped light beam to be reflected to the parabolic mirror at an angle of a vertical angle, the parabolic mirror reflects light rays reflected at any angle to the photosensitive plate again in a parallel light mode, compared with a contact type probe detection runout mode, the shadow projection detection method is non-contact type detection, the influence of probe detection on runout in bearing rotation is completely avoided, meanwhile, errors generated by the probe in detection are avoided, and detection of bearing coaxiality is achieved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the overall appearance structure of the present invention;
FIG. 2 is a schematic view of the overall appearance structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic view of the structure of the end cap portion of the present invention;
FIG. 5 is a schematic view of the semi-sectional structure of the present invention;
FIG. 6 is a schematic of a semi-sectional structure of the present invention;
FIG. 7 is a schematic view of the structure of the dowel portion of the present invention;
in the figure: 1. a housing; 2. an end cap; 3. a servo motor; 4. a chute; 5. a detection arm; 6. a positioning pin; 7. a spring; 8. a piston block; 9. positioning a clamping block; 10. a slide block; 11. a connecting rod; 12. a main bearing; 13. a photosensitive plate; 14. a parabolic mirror; 15. a second motor; 16. a drive bevel gear; 17. a driven bevel gear; 18. a rotating shaft; 19. a reflecting mirror; 20. a laser emitter; 21. a feed pipe; 22. a blanking hole; 23. a light barrier.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, the present invention provides the following technical solutions: main bearing rotation axiality check out test set, including the installation base, the material loading robot, high-pressure air gun, the conveyer belt, a plurality of main bearings 12 of waiting to detect, be provided with casing 1 on the installation base, the one end of casing 1 is provided with end cover 2, form the detection room between casing 1 and the end cover 2, the intercommunication has inlet pipe 21 on the end cover 2, the material loading robot sets up in one side of inlet pipe 21, be provided with positioning mechanism on the casing 1, positioning mechanism carries out quick location to main bearings 12, be provided with emitting mechanism on the end cover 2, positioning mechanism and emitting mechanism all are located the detection room, blanking hole 22 has been seted up to the bottom of casing 1, the conveyer belt is located blanking hole 22's below, the high-pressure air gun is located the detection room, before detecting main bearings 12, the main bearings 12 is sent into the detection room through inlet pipe 21 to the material loading robot, insert main bearings 12 on the locating pin 6 afterwards, detection arm 5 drives main bearings 12 and removes and detects.
One end of the middle part of the shell 1 far away from the end cover 2 is recessed towards the inside of the detection chamber, a servo motor 3 is arranged at the recessed position, a motor shaft of the servo motor 3 penetrates through the shell 1 and is connected with the detection arm 5, a pair of positioning pins 6 are symmetrically arranged at two ends of the detection arm 5, each positioning pin 6 is rotationally connected with the detection arm 5, a pair of open slots are symmetrically arranged on the detection arm 5, a piston cavity and a floating cavity are arranged in each positioning pin 6, the piston cavity is communicated with the floating cavity through small holes, four positioning clamping blocks 9 are slidably arranged at positions of the positioning pins 6 corresponding to the floating cavity, the four positioning clamping blocks 9 are annularly and uniformly distributed on the positioning pins 6, a main bearing 12 is sleeved on the outer side of the four positioning clamping blocks 9, a piston block 8 and a spring 7 are arranged in the piston cavity, the piston block 8 is slidably arranged in the piston cavity, the spring 7 is positioned at one side of the piston block 8 far away from the floating cavity, a rotary connecting buckle is further arranged on each positioning pin 6, hydraulic oil is filled between the floating cavity and the piston block 8, the inner ring of the main bearing 12 is in contact with the positioning clamping blocks 9, all the positioning clamping blocks 9 are stressed to slide towards the inside of the positioning pin 6, so that the space of the floating cavity is reduced, the hydraulic oil in the floating cavity is extruded into the piston cavity through small holes, the hydraulic oil in the piston cavity is increased to enable the piston block 8 to overcome the positive pressure of the spring 7 to slide, the positive pressure of the spring 7 also acts on the hydraulic oil through the piston block 8, the hydraulic oil enables the positioning clamping blocks 9 to clamp the main bearing 12 from the inside, the main bearing 12 is prevented from falling off in the moving process, the four positioning clamping blocks 9 play a role in centering, after the inner ring position of the main bearing 12 is relatively fixed, the relative displacement generated by axial and radial runout of the outer ring of the main bearing 12 is detected during high-speed rotation, the accuracy of the bearing can be detected.
The inside of each open slot is slidingly provided with a slide block 10, each slide block 10 is made of magnetic materials, each slide block 10 is also provided with a rotary connecting buckle, one side of each slide block 10 far away from the rotary connecting buckle is provided with a short pin, the positioning mechanism also comprises two connecting rods 11, one end of each connecting rod 11 is respectively connected with the rotary connecting buckle on the positioning pin 6 in a switching way, one end of each connecting rod 11 is respectively connected with the rotary connecting buckle on the slide block 10 in a switching way, the shell 1 is also provided with a slide groove 4, the slide groove 4 is positioned at the concave position of the shell 1, the slide groove 4 is positioned in a detection chamber, the shape of the slide groove 4 is composed of four sections of circular arcs, the diameter of the circular arc close to the upper part of the shell 1 is larger than the diameter of the circular arc close to the lower part of the shell 1, the other two sections of circular arcs are in transitional connection with the circular arcs close to the upper end and the lower end of the shell 1, the short pins on the two slide blocks 10 are slidingly arranged in the slide groove 4, the control system controls the servo motor 3 to drive the detection arm 5 to rotate, the sliding block 10 is a driven piece, a short pin of the sliding block 10 is limited in the sliding groove 4, when the detection arm 5 drives the sliding block 10 to rotate, the short pin slides along the sliding groove 4 to enable the sliding block 10 to slide in the opening groove, when the sliding block 10 moves, the connecting rod 11 drives the positioning pin 6 to rotate at the tail end of the detection arm 5, in the detection stage, the sliding block 10 is farthest from the detection arm 5, the positioning pin 6 is pulled by the connecting rod 11 to rotate to a state forming an included angle of 90 degrees with the detection arm 5, the feeding and positioning of the main bearing 12 are facilitated, after the detection is finished, the main bearing 12 moves to the bottommost, in the moving process, the sliding block 10 moves to the position closest to the detection arm 5 to enable the gesture of the positioning pin 6 to be in the same straight line with the detection arm 5, at the moment, the magnetic force of the sliding block 10 on the positioning pin 8 in the positioning pin 6 is maximum, and the piston 8 moves upwards, the hydraulic oil in the floating cavity is pumped upwards again, the positioning fixture block 9 communicated with the floating cavity slides towards the inside of the positioning pin 6, the clamping force of the positioning fixture block 9 to the inner ring of the main bearing 12 is relaxed, the main bearing 12 falls off from the positioning pin 6 and falls onto the conveying belt from the blanking hole 22, the two positioning pins 6 are utilized to work alternately, the detection efficiency of the bearing is improved, the automatic clamping and positioning and blanking of the main bearing 12 are realized through the setting of the positioning mechanism, the two hands of a person are liberated, and the error generated by manual clamping and positioning is reduced.
The emission mechanism comprises a parabolic mirror 14 and a light sensing plate 13, the light sensing plate 13 is arranged at the upper end of the inside of the shell 1, the parabolic mirror 14 is arranged in a detection chamber, an opening of the parabolic mirror 14 faces the light sensing plate 13, a light blocking plate 23 is arranged between the light sensing plate 13 and the parabolic mirror 14, the light blocking plate 23 is arranged on the end cover 2, the width of the light blocking plate 23 is smaller than the diameter of the main bearing 12, the laser emitter 20 emits a strip beam, the strip beam irradiates the reflecting mirror 19 through a through groove, the reflecting mirror 19 enables the strip beam to reflect onto the parabolic mirror 14 at a vertical angle, the second motor 15 is electrified to drive the driving bevel gear 16 to rotate, the driving bevel gear 16 drives the driven bevel gear 17 to rotate, the driven bevel gear 17 drives the reflecting mirror 19 to rotate through a rotating shaft 18, the reflecting mirror 19 rotates to enable the reflected beam to pass through the parabolic mirror 14, the parabolic mirror 14 reflects the light reflected at any angle onto the light sensing plate 13 again in a parallel mode, the light blocked by the main bearing 12 cannot irradiate onto the light sensing plate 13, and in a state that the reflecting mirror 19 continuously scans on the parabolic mirror 14 at a vertical angle, and the main bearing 12 is kept in a clear projection along with the main bearing 12 rotating, and the projection changes clearly.
A baffle is arranged on one side of the parabolic mirror 14 far away from the end cover 2, a second motor 15 is arranged on the baffle, a driving bevel gear 16 is arranged on a motor shaft of the second motor 15, a rotating shaft 18 is arranged at the opening position of the parabolic mirror 14, the rotating shaft 18 is rotatably arranged on the baffle, one end of the rotating shaft 18 is provided with a driven bevel gear 17, the driven bevel gear 17 is meshed with the driving bevel gear 16 for transmission, the other end of the rotating shaft 18 is provided with a reflecting mirror 19, an included angle between the plane of the reflecting mirror 19 and the axis of the rotating shaft 18 is 45 degrees, the transmitting mechanism comprises a laser transmitter 20, the laser transmitter 20 is positioned outside a detection chamber, a through groove is formed in the end cover 2 corresponding to the position of the laser transmitter 20, the height of the through groove is the same as the rotating center position of the reflecting mirror 19, the high-speed air flow is ejected by the high-pressure air gun in the detection stage, the main bearing 12 is blown by air flow to rotate at high speed, a baffle is arranged to prevent light reflected by the reflecting mirror 19 from directly irradiating the main bearing 12 to leave a ray shadow, the parallel light projection reflects the original size of the outline of the main bearing 12, the shadow projected by the ray shadow irradiates the main bearing 12 to enlarge the outline of the main bearing 12, and the edge is dispersed and blurred, so that the main bearing 12 is not easy to be detected by the photosensitive plate 13, the control system judges the shadow outline of the main bearing 12 in rotation by utilizing the photosensitive plate 13, compared with the method of detecting the runout by a contact probe, the shadow projection detection method is non-contact detection, the influence of the probe detection on the runout in the bearing rotation is completely avoided, meanwhile, the error generated by the probe in the detection is avoided, and the detection of the coaxiality of the bearing is realized.
The working principle of the invention is as follows: before detecting the main bearing 12, the feeding robot sends the main bearing 12 into the detection chamber through the feeding pipe 21, then inserts the main bearing 12 onto the locating pin 6, the detection arm 5 drives the main bearing 12 to move for detection, the inner ring of the main bearing 12 is in contact with the locating clamping blocks 9, all the locating clamping blocks 9 are stressed to slide towards the inside of the locating pin 6, the space of a floating cavity is reduced, hydraulic oil in the floating cavity is extruded into a piston cavity through small holes, the hydraulic oil in the piston cavity is increased to enable the piston block 8 to overcome the positive pressure of the spring 7 to slide, the positive pressure of the spring 7 also counteracts the hydraulic oil through the piston block 8, the hydraulic oil enables the locating clamping blocks 9 to clamp the main bearing 12 from the inside, the main bearing 12 is prevented from falling off in the moving process, the four locating clamping blocks 9 play a role of centering, and after the inner ring position of the main bearing 12 is relatively fixed, the relative displacement generated by axial and radial runout of the outer ring of the main bearing 12 during high-speed rotation is detected, so that the precision of the bearing can be detected.
The control system controls the servo motor 3 to drive the detection arm 5 to rotate, the sliding block 10 is a driven piece, the short pin of the sliding block 10 is limited in the sliding groove 4, when the detection arm 5 drives the sliding block 10 to rotate, the short pin slides along the sliding groove 4, so that the sliding block 10 slides in the opening groove, when the sliding block 10 moves, the connecting rod 11 drives the positioning pin 6 to rotate at the tail end of the detection arm 5, in the detection stage, the sliding block 10 is farthest from the detection arm 5, the connecting rod 11 pulls the positioning pin 6 to rotate to a state with an included angle of 90 degrees with the detection arm 5, feeding and positioning of the main bearing 12 are facilitated, after detection is finished, the main bearing 12 moves to the bottommost part, in the moving process, the sliding block 10 moves to the position closest to the detection arm 5, so that the gesture of the positioning pin 6 is on the same straight line with the detection arm 5, at the moment, the magnetic force of the sliding block 10 drives the positioning pin 8 in the positioning pin 6 to be maximum, the piston block 8 moves upwards, hydraulic oil in the floating cavity is pumped upwards again, the positioning fixture 9 communicated with the floating cavity slides towards the positioning pin 6, the inner part of the positioning pin 9, the loose clamping force of the positioning fixture 9 is used for loosening the 12, the main bearing 12 falls off from the positioning pin 6, and the positioning fixture 22 falls off from the positioning pin 6, and the positioning hole is alternately positioned by the main bearing 12, and the positioning fixture is positioned by the two positioning fixture is positioned, and the positioning error is reduced, and the positioning error is alternately is set and the positioning error is solved.
The laser emitter 20 emits a strip-shaped light beam, the strip-shaped light beam irradiates the reflecting mirror 19 through the through groove, the reflecting mirror 19 enables the strip-shaped light beam to be reflected onto the parabolic mirror 14 at an angle of a vertical angle, the second motor 15 is electrified to drive the driving bevel gear 16 to rotate, the driving bevel gear 16 drives the driven bevel gear 17 to rotate, the driven bevel gear 17 drives the reflecting mirror 19 to rotate through the rotating shaft 18, the reflecting mirror 19 rotates to enable the reflected light beam to skim the parabolic mirror 14, the parabolic mirror 14 reflects light rays reflected at any angle onto the photosensitive plate 13 again in a parallel light mode, the light rays blocked by the main bearing 12 cannot irradiate onto the photosensitive plate 13, under the condition that the reflecting mirror 19 rotates rapidly, the light rays continuously scan on the parabolic mirror 14, a clear projection outline of the main bearing 12 is left on the photosensitive plate 13, and the projection of the main bearing 12 also changes along with weak jumping in the rotation of the main bearing 12.
In the detection stage, the high-speed air gun sprays high-speed air flow, the air flow blows the main bearing 12 to rotate at a high speed, a baffle is arranged for preventing light reflected by the reflecting mirror 19 from directly irradiating the main bearing 12 to leave a ray shadow, the parallel light projection reflects the original size of the outline of the main bearing 12, the shadow projected by the ray shadow irradiates the main bearing 12 to enlarge the outline of the main bearing 12, and the edge diverges and blurs, so that the detection of the jumping condition of the main bearing 12 by the photosensitive plate 13 is not facilitated, the control system judges the shadow outline of the main bearing 12 in rotation by the photosensitive plate 13, and compared with the contact type probe for detecting the jumping, the shadow projection detection method is non-contact type detection, so that the influence of the probe detection on the jumping in the bearing rotation is completely avoided, meanwhile, the error generated by the probe in the detection is avoided, and the detection of the coaxiality of the bearing is realized.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. Main bearing rotation axiality check out test set, including installation base, material loading robot, high-pressure air gun, conveyer belt, a plurality of main bearings (12) of waiting to detect, its characterized in that: the device is characterized in that a shell (1) is arranged on the mounting base, one end of the shell (1) is provided with an end cover (2), a detection chamber is formed between the shell (1) and the end cover (2), a feeding pipe (21) is communicated with the end cover (2), the feeding robot is arranged on one side of the feeding pipe (21), a positioning mechanism is arranged on the shell (1) and is used for rapidly positioning a main bearing (12), a transmitting mechanism is arranged on the end cover (2), the positioning mechanism and the transmitting mechanism are both positioned in the detection chamber, a blanking hole (22) is formed in the bottom of the shell (1), a conveying belt is positioned below the blanking hole (22), and a high-pressure air gun is positioned in the detection chamber;
the emission mechanism comprises a parabolic mirror (14) and a photosensitive plate (13), wherein the photosensitive plate (13) is arranged at the upper end inside the shell (1), the parabolic mirror (14) is arranged in the detection chamber, an opening of the parabolic mirror (14) faces the photosensitive plate (13), a light blocking plate (23) is arranged between the photosensitive plate (13) and the parabolic mirror (14), the light blocking plate (23) is arranged on the end cover (2), and the width of the light blocking plate (23) is smaller than the diameter of the main bearing (12);
a baffle is arranged on one side, far away from the end cover (2), of the parabolic mirror (14), a second motor (15) is arranged on the baffle, a driving bevel gear (16) is arranged on a motor shaft of the second motor (15), a rotating shaft (18) is arranged at the opening position of the parabolic mirror (14), the rotating shaft (18) is rotatably arranged on the baffle, a driven bevel gear (17) is arranged at one end of the rotating shaft (18), the driven bevel gear (17) is in meshed transmission with the driving bevel gear (16), and a reflecting mirror (19) is arranged at the other end of the rotating shaft (18);
the included angle between the plane of the reflecting mirror (19) and the axis of the rotating shaft (18) is 45 degrees, the transmitting mechanism comprises a laser transmitter (20), the laser transmitter (20) is positioned on the outer side of the detection chamber, a through groove is formed in the position of the end cover (2) corresponding to the laser transmitter (20), and the height of the through groove is identical to the rotation center of the reflecting mirror (19).
2. The main bearing rotational coaxiality detection apparatus according to claim 1, wherein: one end that end cover (2) was kept away from at casing (1) middle part is sunken to the detection chamber is inside, sunken position department is provided with servo motor (3), positioning mechanism is including detecting arm (5), the motor shaft of servo motor (3) runs through casing (1) and is connected with detecting arm (5), the both ends symmetry of detecting arm (5) is provided with a pair of locating pin (6), every locating pin (6) are connected with detecting arm (5) rotation, a pair of open slot has still been seted up to the symmetry on detecting arm (5).
3. The main bearing rotational coaxiality detection apparatus according to claim 2, wherein: every piston chamber and floating chamber have been seted up to the inside of locating pin (6), through aperture intercommunication between piston chamber and the floating chamber, every locating pin (6) correspond the position department slidable mounting in floating chamber and have four location fixture blocks (9), four location fixture blocks (9) are annular equipartition on locating pin (6), main bearing (12) cover is established in the outside of four location fixture blocks (9), the internally mounted in piston chamber has piston block (8), spring (7), piston block (8) slidable mounting is in the piston chamber, spring (7) are located one side that piston block (8) kept away from the floating chamber, every still be provided with one on locating pin (6) and rotate the connector link, it has hydraulic oil to fill between floating chamber and the piston block (8).
4. A main bearing rotational coaxiality detection apparatus as claimed in claim 3, wherein: every the inside slip of open slot is provided with slider (10), every slider (10) is made by magnetic material, also is provided with a rotation connector link on every slider (10), and one side that rotates the connector link is kept away from to every slider (10) is provided with the short round pin, positioning mechanism still includes two connecting rods (11), the one end of every connecting rod (11) respectively with on locating pin (6) rotate the connector link switching, the one end of every connecting rod (11) respectively with on slider (10) rotate the connector link switching.
5. The main bearing rotational coaxiality detection apparatus as recited in claim 4, wherein: the novel sliding device is characterized in that a sliding groove (4) is further formed in the shell (1), the sliding groove (4) is located at the position of the concave part of the shell (1), the sliding groove (4) is located in the detection chamber, the shape of the sliding groove (4) is composed of four sections of circular arcs, the diameter of the circular arc close to the upper side of the shell (1) is larger than that of the circular arc close to the lower side of the shell (1), the other two sections of circular arcs are in transition connection with the circular arcs close to the upper end and the lower end of the shell (1), and the short pin on the two sliding blocks (10) is slidably mounted in the sliding groove (4).
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