CN107877139B - Eccentric bearing eccentricity image alignment and press fitting system - Google Patents
Eccentric bearing eccentricity image alignment and press fitting system Download PDFInfo
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- CN107877139B CN107877139B CN201711419817.2A CN201711419817A CN107877139B CN 107877139 B CN107877139 B CN 107877139B CN 201711419817 A CN201711419817 A CN 201711419817A CN 107877139 B CN107877139 B CN 107877139B
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- 230000007246 mechanism Effects 0.000 claims abstract description 172
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- 230000000903 blocking effect Effects 0.000 claims description 57
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- 210000000078 claw Anatomy 0.000 claims description 10
- 238000001514 detection method Methods 0.000 description 11
- 238000003825 pressing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
- B23P19/007—Picking-up and placing mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/10—Aligning parts to be fitted together
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Abstract
The invention discloses an eccentric bearing eccentricity image alignment and press fitting system, which comprises a supporting platform, wherein a feeding mechanism, an alignment mechanism, a transfer mechanism and a press fitting mechanism of an eccentric bearing are sequentially arranged on the supporting platform, and the feeding mechanism feeds the eccentric bearing to the transfer mechanism; the transfer mechanism is used for connecting the feeding mechanism, the alignment mechanism and the press-fitting mechanism, and conveying the eccentric bearing to be detected of the feeding mechanism to the alignment mechanism and conveying the bearing of the alignment mechanism to the press-fitting mechanism; the alignment mechanism scans the external elliptical contour of the bearing by taking the center of the inner circle of the eccentric bearing as a reference, compares the straight line where the major axis of the ellipse is positioned with the straight line where the theoretical major axis is positioned, calculates the angle difference, and completes the alignment process by rotating the eccentric bearing by a corresponding angle. The invention adopts the eccentric distance image alignment of the eccentric bearing to automatically realize the press fitting of the eccentric bearing, and has accurate press fitting position, high precision, simple and reliable movement and greatly improved efficiency.
Description
Technical Field
The invention relates to the technical field of motor assembly, in particular to an eccentric distance image alignment system for an eccentric bearing on an output shaft of a motor rotor.
Background
Currently, various types of motors have been applied to various large fields. The relative position of the eccentric bearing and the shaft mounted on the output shaft of the motor rotor directly influences the working state of a motor, so that the accuracy of the bearing press-mounting position is very critical, and the press-mounting accuracy is difficult to ensure by adopting a common mechanical method.
The eccentric detection method comprises mechanical detection and photoelectric detection, and for the eccentric bearing with higher detection precision requirement, the overall performance of the motor is influenced by adopting a mechanical detection mode, and the photoelectric detection method generally completes the precision detection through a computer numerical judgment in a camera lens imaging mode, so that the detection precision of the method is superior to that of the mechanical detection.
Disclosure of Invention
The invention aims to solve the technical problem of providing an eccentric bearing eccentricity image alignment and press mounting system, which adopts the eccentric bearing eccentricity image alignment to automatically realize press mounting of an eccentric bearing, and has the advantages of accurate press mounting position, high precision, simple and reliable movement and greatly improved efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme: the eccentric bearing eccentric distance image alignment and press mounting system is characterized by comprising a supporting platform, wherein a feeding mechanism, an alignment mechanism, a transfer mechanism and a press mounting mechanism of the eccentric bearing are sequentially arranged on the supporting platform, and the feeding mechanism takes out the eccentric bearings one by one and continuously feeds the eccentric bearings to the transfer mechanism; the transfer mechanism is used for connecting the feeding mechanism, the alignment mechanism and the press-fitting mechanism, and conveying the eccentric bearing to be detected of the feeding mechanism to the alignment mechanism and conveying the bearing of the alignment mechanism to the press-fitting mechanism; the alignment mechanism scans the external elliptical contour of the bearing by taking the center of the inner circle of the eccentric bearing as a reference, compares the straight line where the major axis of the ellipse is positioned with the straight line where the theoretical major axis is positioned, calculates the angle difference, and completes the alignment process by rotating the eccentric bearing by a corresponding angle; the pressing mechanism presses the eccentric bearing into the rotor output shaft.
In the scheme, the feeding mechanism, the alignment mechanism and the press-fitting mechanism are connected into a whole by utilizing the transfer mechanism, so that an integrated system with four functions of feeding, conveying, alignment and press-fitting actions of the eccentric bearing are formed, the system can be continuously produced, the automatic press-fitting of the eccentric bearing can be realized by controlling each mechanism by matching with the controller, the automatic assembly of the new bearing is provided, the movement is simple and reliable, and the efficiency is greatly improved.
The technical scheme is further preferred, the alignment mechanism comprises a bracket, a camera, a light source and a bearing blocking cylinder, wherein the camera, the light source and the bearing blocking cylinder are arranged on the bracket, the light source is a light source with a through hole in the center, the light source irradiates the surface of the eccentric bearing to be measured, which is positioned right below the light source, the eccentric bearing to be measured is fixed through the bearing blocking cylinder, the camera shoots the eccentric bearing to be measured through the through hole, and an alignment motor is arranged below the eccentric bearing to be measured; the camera is connected with the computer, and the computer is connected with the aligning motor through the controller, and the angle is adjusted to the eccentric bearing of aligning motor drive.
With the scheme, the piston end of the bearing blocking cylinder is provided with the bearing blocking piece, the bearing blocking cylinder drives the bearing blocking piece to lift, and the end part of the bearing blocking piece is tightly pressed or loosened with the end part of the main shaft of the eccentric bearing to be detected.
The feeding mechanism comprises a vertically placed charging barrel and a feeding air cylinder, wherein a superposed eccentric bearing is arranged in the charging barrel, a blocking plate capable of automatically resetting is arranged at a lower outlet of the charging barrel, the blocking plate is used for preventing the eccentric bearing from falling, the feeding air cylinder is arranged on one side of the blocking plate, a pulling rod and a trough for placing the eccentric bearing are arranged at a piston end of the feeding air cylinder, the pulling rod pushes the blocking plate to translate, and the trough is located under the charging barrel when the charging barrel is opened.
With the scheme, more than one charging barrels are preferably arranged, the charging barrels are annularly and uniformly distributed on a circular flat plate, a blocking plate is arranged at the lower opening of each charging barrel, and the flat plate drives the charging barrels to rotate at a fixed angle through a charging motor and a divider at one side.
Further preferably, the above scheme is that the blocking plate is provided with a strip-shaped notch, the notch is matched with the pulling rod, and the length of the notch is matched with the horizontal distance between the pulling rod and the trough.
The technical scheme is further preferred, the transfer mechanism comprises a slide way fixed on a supporting platform and a transfer motor, the slide way is perpendicular to the supporting platform, a slide plate is arranged on the slide way, the transfer motor drives the slide plate to translate, two grabbing mechanisms are arranged on the surface of the slide plate and are respectively a feeding grabbing mechanism and an aligning grabbing mechanism, the feeding grabbing mechanism grabs an eccentric bearing by a station of the feeding mechanism and is placed on a station of the aligning mechanism, and the aligning grabbing mechanism grabs the eccentric bearing by a station of the aligning mechanism and is placed on a station of the press-fitting mechanism.
The feeding grabbing mechanism comprises clamping jaws, a sliding table cylinder and a clamping cylinder, wherein the sliding table cylinder is arranged on the surface of the sliding plate, the sliding table cylinder drives the clamping cylinder to move up and down, and the clamping cylinder drives the clamping jaws to clamp and loosen the eccentric bearing.
The scheme is further preferable, the alignment grabbing mechanism comprises a vertical sliding rail fixed on the sliding plate, the vertical sliding rail is provided with a liftable press-fit die and a clamping air claw, the clamping air claw is located below the press-fit die, the clamping air claw clamps an eccentric bearing, a spring is sleeved on a sliding guide rod of the vertical sliding rail, and the vertical sliding rail is reset under the action of spring force.
The pressing mechanism comprises an electric cylinder arranged on the supporting platform, a rotor output shaft is arranged under the electric cylinder, a limit screw is arranged on one side of the electric cylinder, and the limit screw limits the limiting position of the electric cylinder in descending.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
(1) The eccentric bearing eccentricity image alignment and press fitting system integrates the eccentric bearing material taking, alignment and press fitting actions into a whole, and can realize automatic control by matching with a controller; the feeding mechanism continuously supplies the eccentric bearing to be processed, the alignment mechanism drives the eccentric bearing to rotate through the detection of the angle in the image, the adjustment of the eccentric angle is realized, the transfer mechanism connects the feeding mechanism, the alignment mechanism and the press mounting mechanism into a whole, the continuous eccentric bearing assembly is formed, the whole movement is simple and reliable, and the efficiency is greatly improved;
(2) The alignment mechanism realizes the image alignment of the angle eccentricity of the inner ring of the eccentric bearing by connecting the camera of the computer and matching with the alignment motor, replaces the traditional mechanical alignment mode, and compared with the traditional mechanical alignment mode, the alignment angle is obtained by comparing the image of the camera with the theoretical image, and has accurate alignment angle, high precision and better speed than mechanical alignment;
(3) According to the feeding mechanism, the blocking plate is matched with the feeding cylinder, so that eccentric bearings in the charging barrel are taken out one by one and are continuously conveyed to a feeding station; meanwhile, a plurality of uniform material distribution cylinders in the feeding mechanism are matched with the feeding motor to realize high-precision positioning and long-time circulating feeding, so that the feeding of operators is facilitated; in addition, the trough, the pulling rod and the notch on the blocking plate are finely matched to form a single blanking mode, so that the structure is simple, and the daily feeding requirement can be met;
(4) According to the transfer mechanism, two grabbing mechanisms are matched on the sliding plate, meanwhile, eccentric bearings on the feeding station and the alignment station are clamped and placed, and eccentric bearings to be aligned or pressed on each station form continuous operation of each mechanism, so that the processing efficiency is greatly improved;
(5) According to the press-mounting station, the vertical slide rail is adopted to drive the press-mounting die, and the electric cylinder is matched, so that accurate press-mounting of the eccentric bearing and the rotor output shaft on the press-mounting station is realized, meanwhile, the spring and the limit screw are arranged, resetting of the press-mounting die is realized, meanwhile, the press-mounting position of the eccentric bearing and the rotor output shaft is protected to be in place, and the assembly precision is ensured.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an isometric view of FIG. 1;
FIG. 4 is a front view of the loading mechanism of the present invention;
FIG. 5 is a left side view of FIG. 4;
FIG. 6 is an isometric view of FIG. 4;
FIG. 7 is a schematic view of the alignment mechanism of the present invention;
FIG. 8 is a front view of the transfer mechanism of the present invention;
FIG. 9 is an isometric view of FIG. 8;
FIG. 10 is an enlarged view of a portion of FIG. 9 at I;
FIG. 11 is a schematic diagram of the structure of the press-fit mechanism and alignment grabbing mechanism of the present invention;
wherein: 1. the device comprises a feeding mechanism, a centering mechanism, a transferring mechanism, a pressing cylinder, a press mounting mechanism, a supporting platform and a supporting platform, wherein the feeding mechanism, the centering mechanism, the transferring mechanism, the pressing cylinder and the supporting platform are arranged in sequence;
11. the feeding device comprises a feeding cylinder, 12, a charging barrel, 13, a pulling rod, 14, a trough, 15, a blocking plate, 16 and a feeding motor;
21. the camera, 22, the light source, 23, the bearing baffle, 24, the aligning motor, 25, the bearing blocking cylinder, 26, the aligning bearing bracket, 27 and the bracket;
31. the device comprises a sliding plate, 32, a grabbing mechanism, 33, a transfer motor, 34, clamping jaws, 35, a sliding table cylinder, 36, a clamping cylinder, 37, a slideway, 38, a press-fit die, 39, a clamping air jaw, 30, a spring, 310 and a vertical sliding rail;
51. electric cylinder, 52, limit screw, 53, rotor output shaft.
Detailed Description
According to the accompanying drawings 1-3, the eccentric bearing eccentricity image alignment and press-fitting system in the embodiment specifically comprises a supporting platform 6, wherein a feeding mechanism 1, an alignment mechanism 2, a transfer mechanism 3 and a press-fitting mechanism 5 of the eccentric bearing are sequentially arranged on the supporting platform 6, so that four working procedures of continuous feeding, image alignment, station transfer and press-fitting assembly of the eccentric bearing are matched, and the eccentric bearing continuously operates, and an automatic assembly system of the eccentric bearing is completed.
Wherein the eccentric bearings are taken out one by the feeding mechanism 1 and are continuously fed to the transferring mechanism 3; the transfer mechanism 3 connects the feeding mechanism 1, the alignment mechanism 2 and the press-fitting mechanism 5, and the transfer mechanism 3 sends the eccentric bearing to be detected of the feeding mechanism 1 to the alignment mechanism 2 and simultaneously sends the bearing of the alignment mechanism 2 to the press-fitting mechanism 5; the alignment mechanism 2 scans the external elliptical contour of the bearing by taking the center of the inner circle of the eccentric bearing as a reference, compares the straight line where the major axis of the ellipse is positioned with the straight line where the theoretical major axis is positioned, calculates the angle difference, and completes the alignment process by rotating the eccentric bearing by a corresponding angle; the press-fit mechanism 5 presses the eccentric bearing into the rotor output shaft.
According to the continuous operation of the four mechanisms, four eccentric bearing placing stations are formed, namely a feeding station, an aligning station, a transferring station and a press mounting station, and the specific operation process of the workpieces of the four stations is as follows: firstly, a feeding station takes out an eccentric bearing in a charging barrel and sends the eccentric bearing to a feeding position; then, the transfer station is used for conveying the eccentric bearing at the feeding position to the alignment station and conveying the bearing at the alignment position to the press-fitting position. And the alignment station photographs the sent bearing, compares the bearing with a theoretical state, and then completes alignment action by rotating a corresponding angle through a servo motor. And the press-fitting station presses the aligned bearing into the positioned rotor output shaft to finish the press-fitting action of the eccentric bearing.
According to the functions and operation requirements of the four mechanisms, the specific structure of the four stations and the detailed operation mode thereof are designed as follows.
The structure schematic diagram of the feeding mechanism 1 in the invention is shown in fig. 4-6, and the feeding mechanism specifically comprises a charging barrel 12 and a feeding cylinder 11 which are vertically arranged, wherein the charging barrel 12 is a cylinder with openings at the upper end and the lower end, and is mainly used for accommodating a plurality of overlapped eccentric bearings, 4 charging barrels 12 are vertically and annularly uniformly distributed on a circular flat plate, a blocking plate 15 is arranged at the lower opening of each charging barrel 12, the blocking plate 15 blocks the eccentric bearings in the charging barrel 12 to prevent the eccentric bearings from falling, the blocking plate 15 has an automatic resetting function, when the blocking plate 15 is pulled out, the eccentric bearings can fall along the charging barrel 12, after the falling is completed, the eccentric bearings can be automatically reset to block the charging barrel 12, and a reset spring can be arranged on the blocking plate 15 to realize the automatic resetting function.
In the structure, the eccentric bearings are continuously fed through the feeding motor 16, the feeding motor 16 is arranged on one side of the circular flat plate and drives the circular flat plate to rotate, the 4 charging barrels 12 are arranged between the circular flat plate and the feeding motor 16, and the rotation angle of the 4 charging barrels 12 is set to be 90 degrees, so that the accuracy of the rotation angle is ensured.
In the feeding mechanism 1, the blocking plate 15 is shifted through a feeding cylinder 11 arranged on one side of the blocking plate 15, wherein a pulling rod 13 and a trough 14 for placing an eccentric bearing are arranged at the piston end of the feeding cylinder 11, a long-strip-shaped notch is formed in the blocking plate 15 and matched with the pulling rod 13, the pulling rod 13 pushes the blocking plate 15 to translate, the trough 14 is located right below the feeding cylinder 12 when the feeding cylinder 12 is opened, and the eccentric bearing falls onto the trough 14 at the moment. After the eccentric bearing is placed in the station, the feeding cylinder 11 is retracted, and the pulling rod 13 enters the notch of the blocking plate 15 to drive the blocking plate to move left. When the trough 14 is located directly below the barrel, the blocking plate 15 no longer blocks the eccentric bearing in the barrel 12, which enters the trough. Subsequently, the feeding cylinder 11 extends out, the blocking plate 15 blocks the opening of the charging barrel 12, and the material groove 14 carries the bearing to the feeding position. It is also required that the length of the slot matches the horizontal distance between the pull rod 13 and the trough 14, i.e. when the pull rod 13 enters the bottom of the slot and the blocking plate 15 is toggled, the trough 14 enters directly below the barrel 12.
According to the feeding mechanism 1, the blocking plate 15 is matched with the feeding cylinder 11, so that eccentric bearings in the charging barrel 12 are taken out one by one and are continuously conveyed to a feeding station; meanwhile, a plurality of uniform material distribution cylinders in the feeding mechanism are matched with the feeding motor to realize high-precision positioning and long-time circulating feeding, so that the feeding of operators is facilitated; in addition, the trough, the pulling rod and the notch on the blocking plate are in exquisite cooperation to form a single blanking mode, so that the structure is simple, and the daily feeding requirement can be met.
The structural schematic diagram of the alignment mechanism 2 in the invention is shown in fig. 7, and specifically comprises a bracket 27, and a camera 21, a light source 22 and a bearing blocking cylinder 25 which are arranged on the bracket 27, wherein the bracket 27 is provided with two round rods which are vertically fixed as fixing rods, and the camera 21, the light source 22 and the bearing blocking cylinder 25 are clamped on the round rods through clamping heads, so that the position adjustment is facilitated. The camera 21, the light source 22 and the bearing blocking cylinder 25 are sequentially arranged from top to bottom, wherein the light source 22 is a light source with a through hole in the center, the light source irradiates the surface of the eccentric bearing to be detected, which is positioned right below the light source, the eccentric bearing to be detected is fixed through the bearing blocking cylinder 25, the piston end of the bearing blocking cylinder 25 is provided with a bearing baffle plate 23, and the bearing blocking cylinder 25 drives the bearing baffle plate 23 to lift, so that the end part of the bearing baffle plate 23 is tightly pressed or loosened with the end part of the main shaft of the eccentric bearing to be detected; the camera 21 shoots the eccentric bearing to be detected through the through hole on the light source 22, the eccentric bearing to be detected is arranged on the alignment bearing bracket 26, the alignment motor 24 is arranged in the alignment bearing bracket 26, the alignment motor 24 is positioned below the eccentric bearing, and the alignment motor 24 can drive the eccentric bearing to rotate; the camera 21 is connected with a computer, the computer is connected with an alignment motor 24 through a controller, and the alignment motor 24 drives an eccentric bearing to adjust the angle.
According to the above alignment mechanism 2, the specific operation process is as follows: after the eccentric bearing is placed in the alignment station, the bearing blocking cylinder 25 extends to fix the eccentric bearing. The light source 22 is turned on and the camera 21 photographs the eccentric bearing. The photo is transmitted into a computer and is compared with the theoretical state, then the angle required to rotate is calculated by the computer, after the alignment motor 24 rotates by a corresponding angle, the bearing blocking cylinder 25 is retracted, the bearing blocking piece 23 releases the eccentric bearing, and the alignment action of the eccentric bearing is completed.
According to the alignment mechanism 2, the camera and the alignment motor 24 are matched, the outer contour (ellipse) of the bearing is scanned by taking the center of the inner circle of the eccentric bearing as a reference, the straight line where the long axis is positioned is compared with the straight line where the theoretical long axis is positioned, the angle difference is calculated, and the corresponding angle is rotated to finish the alignment process, so that the eccentric image alignment of the angle of the inner ring of the eccentric bearing is realized, the traditional mechanical alignment mode is replaced, compared with the traditional mechanical alignment mode, the alignment angle is obtained by comparing the image of the camera with the theoretical image, the alignment angle is accurate, the precision is high, and the speed is superior to that of the mechanical alignment.
The structure schematic diagram of the transfer mechanism 3 is shown in fig. 8-10, the transfer mechanism 3 comprises a slide way 37 fixed on a supporting platform 6 and a transfer motor 33, the transfer motor 33 is positioned on one side of the slide way 37, the slide way 37 is vertical to the supporting platform 6, a slide plate 31 is arranged on the slide way 37, and the transfer motor 33 drives the slide plate 31 to translate; two grabbing mechanisms 32 are arranged on the surface of the sliding plate 31, namely a feeding grabbing mechanism and an aligning grabbing mechanism.
The feeding grabbing mechanism grabs the eccentric bearing by the station of the feeding mechanism 1 and is placed on the station of the alignment mechanism 2, and the structure of the feeding grabbing mechanism comprises a clamping jaw 34, a sliding table cylinder 35 and a clamping cylinder 36, wherein the sliding table cylinder 35 is arranged on the surface of a sliding plate 31, the sliding table cylinder 35 drives the clamping cylinder 36 to move up and down, and the clamping cylinder 36 drives the clamping jaw 34 to clamp and loosen the eccentric bearing.
The alignment grabbing mechanism grabs the eccentric bearing at the station of the alignment mechanism 2 and places the eccentric bearing on the station of the press-fitting mechanism 5. The concrete structure of the vertical sliding rail comprises a vertical sliding rail 310 fixed on the sliding plate 31, wherein the vertical sliding rail 310 is provided with a liftable press-fit die 38 and a clamping air claw 39, the clamping air claw 39 is positioned below the press-fit die 38, the clamping air claw 39 clamps an eccentric bearing, a spring 30 is sleeved on a sliding guide rod of the vertical sliding rail 310, and the vertical sliding rail 310 is reset under the action of spring force.
The operation of the transfer mechanism is described with reference to fig. 8: after the eccentric bearing is placed at the loading position, the slide plate 31 is moved to the right end by the transfer motor 33. Then, a sliding table cylinder 35 in the feeding grabbing mechanism moves downwards with a clamping cylinder 36, and the clamping cylinder 36 drives a clamping jaw 34 to clamp an eccentric bearing of the feeding level. The clamping cylinder 36 clamps the eccentric bearing and then moves up with the slide cylinder 35, and then the slide plate 31 moves left to the left end. The feeding grabbing mechanism moves downwards under the driving of the sliding table cylinder 35, the clamping cylinder 36 loosens and places the eccentric bearing to the alignment station, and the feeding grabbing mechanism moves upwards under the driving of the sliding table cylinder 35 to finish the action from the feeding station to the alignment station. The action of carrying the eccentric bearing from the alignment station to the press-fitting station is completed by the alignment grabbing mechanism while the feeding grabbing mechanism acts, and the specific actions are as follows: after the eccentric bearing is placed in the alignment station, the pressing cylinder 4 (in fig. 1) is extended to press on the feeding grabbing mechanism, so that the eccentric bearing moves down to a specified position. Then the clamping air claw 39 clamps the aligned eccentric bearing, the lower pressing cylinder 4 retreats, and the feeding grabbing mechanism 2 moves up to a specified position under the action of spring force. The slide 31 moves to the left and the eccentric bearing is sent to the press station.
The transfer mechanism 3 adopts two grabbing mechanisms matched on the sliding plate 31, and simultaneously clamps and places eccentric bearings on a feeding station and an alignment station, and eccentric bearings to be aligned or pressed on each station form continuous operation of each mechanism, so that the processing efficiency is greatly improved.
The structure of the press-fitting mechanism 5 in the invention is schematically shown in fig. 11, the press-fitting mechanism 5 comprises an electric cylinder 51 arranged on a supporting platform 6, a rotor output shaft 53 is arranged right below the electric cylinder 51, a limit screw 52 is arranged on one side of the electric cylinder 51, and the limit screw 52 limits the limit position of the electric cylinder 51 in descending. In the press-fitting mechanism 5 matched with the transfer mechanism 3, when the eccentric bearing is sent to the press-fitting station, the electric cylinder 51 drives the electric cylinder pressure head at the end of the eccentric bearing to move downwards, then the electric cylinder 51 presses the press-fitting mechanism 5 to move downwards, the eccentric bearing is loosened by the air cylinder, and the press-fitting mechanism 5 presses the eccentric bearing onto the rotor output shaft 53. Thereafter, the electric cylinder 51 is moved up, the alignment grasping mechanism is moved up into position under the spring force, and the press-fitting action is completed.
The press-fitting mechanism 5 is matched with an alignment grabbing mechanism, the press-fitting die 38 is driven by the vertical sliding rail 310, the eccentric bearing and the rotor output shaft on the press-fitting station are precisely press-fitted by the electric cylinder 51, meanwhile, the spring 30 and the limit screw 52 are arranged, resetting of the press-fitting die 38 is achieved, meanwhile, the press-fitting position of the eccentric bearing and the rotor output shaft is protected, and the assembly precision is guaranteed.
In summary, in order to overcome the problem of insufficient press-fitting precision, the eccentric bearing taking, aligning and press-fitting actions are integrated into a whole, and the automatic control can be realized by matching with a controller; wherein feed mechanism continuous supply waits for the eccentric bearing of processing, and alignment mechanism drives eccentric bearing through the detection of angle in the image and rotates, realizes eccentric angle's adjustment, and transport mechanism links feed mechanism, alignment mechanism and pressure equipment mechanism as an organic wholely, forms continuous eccentric bearing assembly, and the whole motion is simple reliable, and efficiency improves greatly.
In the foregoing description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed above. .
Claims (4)
1. The eccentric bearing eccentricity image alignment and press fitting system is characterized by comprising a supporting platform (6), wherein a feeding mechanism (1), an alignment mechanism (2), a transfer mechanism (3) and a press fitting mechanism (5) of the eccentric bearing are sequentially arranged on the supporting platform (6), and the feeding mechanism (1) takes out the eccentric bearings one by one and continuously feeds the eccentric bearings to the transfer mechanism (3); the transfer mechanism (3) is used for connecting the feeding mechanism (1), the alignment mechanism (2) and the press-fitting mechanism (5), and the transfer mechanism (3) is used for conveying the eccentric bearing to be detected of the feeding mechanism (1) to the alignment mechanism (2) and conveying the bearing of the alignment mechanism (2) to the press-fitting mechanism (5) at the same time; the alignment mechanism (2) scans the external elliptical profile of the bearing by taking the center of the inner circle of the eccentric bearing as a reference, compares the straight line where the major axis of the ellipse is positioned with the straight line where the theoretical major axis is positioned, calculates the angle difference, and completes the alignment process by rotating the eccentric bearing by a corresponding angle; the eccentric bearing is pressed into the rotor output shaft by the press-fit mechanism (5);
the alignment mechanism (2) comprises a bracket (27), a camera (21), a light source (22) and a bearing blocking cylinder (25), wherein the camera (21), the light source (22) and the bearing blocking cylinder (25) are arranged on the bracket (27), the light source (22) is a light source with a through hole in the center, the light source irradiates the surface of an eccentric bearing to be detected, which is positioned right below the light source, the eccentric bearing to be detected is fixed through the bearing blocking cylinder (25), the camera (21) shoots the eccentric bearing to be detected through the through hole, and an alignment motor (24) is arranged below the eccentric bearing to be detected; the camera (21) is connected with a computer, the computer is connected with the alignment motor (24) through the controller, and the alignment motor (24) drives the eccentric bearing to adjust the angle; the piston end of the bearing blocking cylinder (25) is provided with a bearing blocking piece (23), the bearing blocking cylinder (25) drives the bearing blocking piece (23) to lift, and the end part of the bearing blocking piece (23) is tightly pressed or loosened with the end part of a main shaft of the eccentric bearing to be detected;
the feeding mechanism (1) comprises a charging barrel (12) and a feeding air cylinder (11) which are vertically arranged, wherein a superposed eccentric bearing is arranged in the charging barrel (12), a blocking plate (15) capable of automatically resetting is arranged at the lower outlet of the charging barrel (12), the blocking plate (15) prevents the eccentric bearing from falling, the feeding air cylinder (11) is arranged at one side of the blocking plate (15), a pulling rod (13) and a trough (14) for placing one eccentric bearing are arranged at the piston end of the feeding air cylinder (11), the pulling rod (13) pushes the blocking plate (15) to translate, and the trough (14) is positioned under the charging barrel (12) when the charging barrel (12) is opened;
the transfer mechanism (3) comprises a slide way (37) fixed on the supporting platform (6) and a transfer motor (33), wherein the slide way (37) is perpendicular to the supporting platform (6), a slide plate (31) is arranged on the slide way (37), the transfer motor (33) drives the slide plate (31) to translate, two grabbing mechanisms (32) are arranged on the surface of the slide plate (31) and are respectively a feeding grabbing mechanism and an alignment grabbing mechanism, the feeding grabbing mechanism grabs an eccentric bearing by a station of the feeding mechanism (1) and is placed on a station of the alignment mechanism (2), and the alignment grabbing mechanism grabs the eccentric bearing by a station of the alignment mechanism (2) and is placed on a station of the press-fitting mechanism (5); the feeding grabbing mechanism comprises clamping jaws (34), a sliding table cylinder (35) and a clamping cylinder (36), wherein the sliding table cylinder (35) is arranged on the surface of the sliding plate (31), the sliding table cylinder (35) drives the clamping cylinder (36) to move up and down, and the clamping cylinder (36) drives the clamping jaws (34) to clamp and loosen the eccentric bearing; the alignment grabbing mechanism comprises a vertical sliding rail (310) fixed on the sliding plate (31), the vertical sliding rail (310) is provided with a liftable press-fit die (38) and a clamping air claw (39), the clamping air claw (39) is located below the press-fit die (38), the clamping air claw (39) clamps an eccentric bearing, a spring (30) is sleeved on a sliding guide rod of the vertical sliding rail (310), and the vertical sliding rail (310) is reset under the action of spring force.
2. The eccentric bearing eccentricity image alignment and press-fitting system according to claim 1, wherein the number of the charging barrels (12) is more than one, the charging barrels are uniformly distributed on a circular flat plate in a ring shape, a blocking plate (15) is arranged at the lower opening of each charging barrel (12), and the flat plate drives the flat plate to rotate at a fixed angle through a charging motor (16) at one side and a divider.
3. The eccentric bearing eccentricity image alignment and press-fitting system according to claim 2, wherein the blocking plate (15) is provided with an elongated notch, the notch is matched with the pulling rod (13), and the length of the notch is matched with the horizontal distance between the pulling rod (13) and the trough (14).
4. The eccentric bearing eccentricity image alignment and press-fitting system according to claim 1, wherein the press-fitting mechanism (5) comprises an electric cylinder (51) arranged on the supporting platform (6), a rotor output shaft (53) is arranged under the electric cylinder (51), a limit screw (52) is arranged on one side of the electric cylinder (51), and the limit screw (52) limits the limiting position of the electric cylinder (51) in descending.
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| CN108311865A (en) * | 2018-04-16 | 2018-07-24 | 宁波佳利塑胶有限公司 | Shaver handle of a knife automatic feed mechanism |
| CN109465613B (en) * | 2018-12-05 | 2023-09-05 | 巨力自动化设备（浙江）有限公司 | ABS motor rotor eccentric shaft feeding mechanism |
| CN112296635B (en) * | 2020-08-25 | 2021-05-25 | 云南锦润数控机械制造有限责任公司 | A kind of wind batch handle automatic pressing equipment |
| CN112427924B (en) * | 2020-11-17 | 2022-06-07 | 海阳市长川电机有限公司 | Cast aluminum rotor press-fitting device for motor production |
| CN113478260A (en) * | 2021-07-20 | 2021-10-08 | 共享智能铸造产业创新中心(安徽)有限公司 | Position correction device and using method thereof |
| CN114012432B (en) * | 2021-11-29 | 2023-06-09 | 东风物流(武汉)有限公司 | Automobile hub inflating valve assembling mechanism and inflating valve assembling method |
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