CN117300758A - Synchronous grinding device and method for end face and outer circle of bearing ring - Google Patents

Synchronous grinding device and method for end face and outer circle of bearing ring Download PDF

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Publication number
CN117300758A
CN117300758A CN202311465154.3A CN202311465154A CN117300758A CN 117300758 A CN117300758 A CN 117300758A CN 202311465154 A CN202311465154 A CN 202311465154A CN 117300758 A CN117300758 A CN 117300758A
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CN
China
Prior art keywords
ferrule
turntable
grinding wheel
wheel
grinding
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.)
Pending
Application number
CN202311465154.3A
Other languages
Chinese (zh)
Inventor
姚蔚峰
张玉辉
俞春兰
尹良良
蔡湾湾
张鹏炜
章航翊
求桦炳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Xcc Group Co ltd
Original Assignee
Zhejiang Xcc Group Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Xcc Group Co ltd filed Critical Zhejiang Xcc Group Co ltd
Priority to CN202311465154.3A priority Critical patent/CN117300758A/en
Publication of CN117300758A publication Critical patent/CN117300758A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35—Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35—Accessories
    • B24B5/355—Feeding means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The invention discloses a synchronous grinding device and method for end faces and excircles of bearing rings, wherein the device comprises a turntable feeding mechanism, a guide wheel driving mechanism and a grinding wheel driving mechanism, the turntable feeding mechanism comprises a frame, a turntable is movably connected to a top plate of the frame, an annular part extending upwards is formed at the edge part of the top of the turntable, a plurality of stop blocks are fixed on the top surface of the annular part, and a discharge groove is formed between every two adjacent stop blocks; the guide wheel driving mechanism comprises a fixing frame, an extension shell is fixed at the top of the fixing frame, a guide wheel motor is arranged at the end part of the extension shell, an output shaft of the guide wheel motor extends out of the bottom surface of the end part of the extension shell and is fixedly provided with a guide wheel, and the side wall of the guide wheel is close to the inner side of the discharge groove and corresponds to the outer side wall of a ferrule in the discharge groove; the device can realize the synchronous grinding working procedures of the end face and the outer circle of the ferrule, and three procedures of feeding, processing and discharging are automatically and parallelly carried out, so that the grinding production efficiency of the ferrule can be obviously improved.

Description

Synchronous grinding device and method for end face and outer circle of bearing ring
Technical field:
the invention relates to the technical field related to bearing machining equipment, in particular to a device and a method for synchronously grinding end faces and excircles of bearing rings.
The background technology is as follows:
the high-precision bearing has higher requirements on the precision of the end face and the outer circle of the bearing ring, and grinding processing is needed. The batch demand of the existing bearing manufacture is very high, and the production efficiency of an automatic production line is very high.
The traditional bearing ring grinding processing method has the technical scheme that the end face grinding and the outer circle grinding of a workpiece are divided into two independent processing stages, different special processing equipment is adopted, and the equipment is connected in series by an automatic production line; the other kind of thought is that an automatic feeding and discharging mechanism is arranged on a numerical control grinding center, and the grinding of the end face and the outer circle of a workpiece can be finished on one piece of equipment, but the automatic flow of feeding, processing and discharging is still finished in series. Both methods either have problems with process equipment separation or process or flow separation.
The invention comprises the following steps:
the invention aims to overcome the defects of the prior art, and provides a device and a method for synchronously grinding the end face and the outer circle of a bearing ring, which can simultaneously realize the grinding working procedures of the end face and the outer circle of the bearing ring, and the three procedures of feeding, processing and discharging are automatically and parallelly carried out, so that the grinding production efficiency of the bearing ring can be obviously improved.
The scheme for solving the technical problems is as follows:
the synchronous grinding device for the end face and the outer circle of the bearing ring comprises a turntable feeding mechanism, a guide wheel driving mechanism and a grinding wheel driving mechanism, wherein the turntable feeding mechanism comprises a frame, a turntable is movably connected to a top plate of the frame, an annular part extending upwards is formed at the edge part of the top of the turntable, a plurality of stop blocks are fixed on the top surface of the annular part, and a discharge groove is formed between every two adjacent stop blocks;
the guide wheel driving mechanism comprises a fixing frame, an extension shell is fixed at the top of the fixing frame, a guide wheel motor is arranged at the end part of the extension shell, an output shaft of the guide wheel motor extends out of the bottom surface of the end part of the extension shell and is fixedly provided with a guide wheel, and the side wall of the guide wheel is close to the inner side of the discharge groove and corresponds to the outer side wall of a ferrule in the discharge groove;
the grinding wheel driving mechanism comprises a transverse moving mechanism, a vertical lifting mechanism is fixed on the top surface of a horizontal moving block of the transverse moving mechanism, a grinding wheel machining shell is fixed on the outer wall surface of a lifting block of the vertical lifting mechanism, a grinding wheel driving motor is installed in the grinding wheel machining shell, the end part of an output shaft of the grinding wheel driving motor extends out of the bottom end of the grinding wheel machining shell and is fixed with a grinding wheel, a radial extending edge is formed on the outer side wall of the upper part of the grinding wheel, and the grinding wheel is close to the outer side wall of the annular part.
And one side of the turntable feeding mechanism is provided with a manipulator and a material taking table, a ferrule to be grasped and processed is placed on the material taking table, a grabbing part of the manipulator corresponds to the ferrule on the material taking table, and a grabbing part of the manipulator corresponds to the material discharging groove.
The material collecting table is installed at one side of the rotary table, the supporting frame is installed on the top surface of the material collecting table, the electric push rod is fixed on the supporting frame, the push plate is fixed at the end part of the push rod of the electric push rod, the bottom of the push plate is located at the inner side of the annular part and corresponds to the material discharging groove, the transverse guide plate is fixed at the top of the push plate, the transverse guide plate is inserted and sleeved in the transverse guide groove formed in the middle of the top surface of the outer shell of the electric push rod, the side wall of the transverse guide plate is clung to the inner side wall of the corresponding transverse guide groove, and the material discharging groove is formed in the middle of the top surface of the material collecting table corresponding to the push plate.
The feeding end of the discharging groove is close to the outer side wall of the annular part and corresponds to the discharging groove, the bottom surface of the discharging groove is an inclined surface, the feeding end of the discharging groove is higher than the discharging end, and the discharging end is communicated with the upper end of the downward extending storage groove formed on the top surface of the outer end of the receiving table.
The rotary table is a conical table body, an upward extending annular part is formed at the edge part of the top of the rotary table, the top surface of the annular part is a plane, and a transverse moving mechanism is arranged at the front part of the rotary table;
the fixed frame is a portal frame, a frame of the turntable feeding mechanism is inserted and sleeved in a portal slot of the portal frame, an extending shell extending forwards is formed in the middle of the top surface of the fixed frame, a guide wheel is arranged in the upper part of the turntable, and the side wall of the guide wheel is close to the inner side of the material placing groove and corresponds to the outer side wall of a ferrule in the material placing groove.
The front of the left part of the turntable feeding mechanism is fixed with a trimming wheel frame, a trimming motor is fixed in the trimming wheel frame, the top end of an output shaft of the trimming motor extends out of the top surface of the trimming wheel frame and is fixed with a trimming wheel, and the trimming wheel corresponds to the grinding wheel.
The machining method of the synchronous grinding machining device for the end face and the outer circle of the bearing ring comprises the following steps:
(1) In the idle period of the turntable, the manipulator grabs the ferrule placed on the top surface of the material taking table and moves the ferrule to the top surface of the annular part of the turntable, so that the ferrule is placed in the material placing groove between the two corresponding stop blocks;
(2) The rotary table starts a movement period, and the ferrule rotates together with the rotary table by a specified angle which is equal to the angle interval between adjacent stop blocks taking the rotary shaft of the rotary table as the center;
(3) In the movement period of the turntable, when the ferrule is in contact with the guide wheel, the ferrule enters a grinding area, the guide wheel is always in a rotating state, and under the friction force between the guide wheel and the ferrule and the thrust of the stop dog, the ferrule makes autorotation movement around the center of the ferrule, and simultaneously makes revolution movement around the center of the turntable;
(4) The transverse moving mechanism is linked with the vertical lifting mechanism, and the position of the grinding wheel is adjusted to ensure that the height of the bottom surface of the radial extending edge of the grinding wheel is consistent with the height of the top end surface of the ferrule;
(5) With the continuous rotation of the turntable, under the thrust action of the turntable and the stop block, the ferrule is in contact with the grinding wheel, the depth is continuously increased, meanwhile, the guide wheel is in contact with the outer side wall of the corresponding ferrule, the rotation of the ferrule is realized, the top end surface of the ferrule is ground by the bottom surface of the radial extension edge of the grinding wheel, the outer circumferential surface of the ferrule is ground by the outer side wall surface of the grinding wheel until the specified material removal amount is reached, and then the ferrule is separated from the grinding area of the grinding wheel along with the continuous rotation of the turntable, and the contact with the grinding wheel is completed;
(6) As the turntable continues to rotate, the ferrule is out of contact with the guide wheel until the movement period of the turntable is finished;
(7) The suspension period of the turntable is entered again, the pushing plate of the electric push rod is retracted, the corresponding ferrule is pushed out of the material placing groove, the ferrule is pulled out of the material placing groove of the turntable under the action of the pulling force of the pushing plate, enters the material placing groove of the material receiving table, and then slides into the material storing groove of the material receiving table along the bottom surface of the material placing groove by self gravity; then, the pushing plate of the electric push rod returns to the initial position; the turntable starts a movement period;
(9) The operation is repeated continuously, the feeding and discharging of the ferrule are completed once every time a rotary table pausing period is passed, and the grinding processing of the workpiece is completed once every time a rotary table moving period is passed;
(10) After machining is finished, the grinding wheel is trimmed, the turntable feeding mechanism, the guide wheel driving mechanism, the mechanical arm and the electric push rod stop working, the transverse moving mechanism and the vertical lifting mechanism are linked, the position of the grinding wheel is adjusted, the upper end face of the trimming wheel is contacted with the bottom face of the radial extending edge of the grinding wheel, then the outer side wall of the trimming wheel is contacted with the outer side wall of the lower part of the grinding wheel, the grinding wheel is trimmed, meanwhile, the vertical lifting mechanism operates, the grinding wheel moves vertically from bottom to top until the trimming wheel is completely separated from the grinding wheel, the grinding wheel trimming process is finished, the grinding wheel returns to the initial position when the ferrule is ground, and the grinding wheel stops working when a workpiece is ground.
The invention has the outstanding effects that:
the automatic feeding and discharging device can realize automatic feeding and discharging of the ferrule by intermittently rotating the turntable and pushing discharging movement by matching with feeding of the mechanical arm and the electric push rod.
Under the driving action of the turntable and the guide wheel, the ferrule simultaneously rotates and revolves, and the radial extending edge is formed on the outer side wall of the upper part of the grinding wheel, so that the top end face and the outer circle of the ferrule can be simultaneously ground.
By moving the position of the grinding wheel, the depth of the grinding wheel cut into the ferrule, namely the material removal amount, can be adjusted, and the thrust of the stop block on the turntable plays a role in feeding.
During processing, the top surface of the annular part of the turntable, the side surface of the stop block and the cylindrical surface of the guide wheel are used as positioning references of the ferrule, and the shape precision of the end surface and the excircle of the ferrule is ensured by relying on the shape precision of the three surfaces. In addition, when the surface of the grinding wheel is subjected to abrasive particle passivation and blockage after a period of processing, the grinding wheel can be moved to a dressing wheel to carry out in-situ dressing on the grinding wheel, so that the shape accuracy and grinding performance of the grinding wheel are ensured.
The automatic grinding machine can realize synchronous grinding processing of the end face and the outer circle of the workpiece, and three processes of feeding, processing and discharging are automatically and parallelly carried out, so that the grinding production efficiency of the workpiece can be obviously improved.
Description of the drawings:
FIG. 1 is a schematic view of a partial structure of the present invention;
FIG. 2 is a schematic view of the angle change partial structure of FIG. 1;
FIG. 3 is a partial top view of the present invention;
FIG. 4 is a partial cross-sectional view of the present invention;
FIG. 5 is a simplified schematic diagram of the motion of the present invention;
fig. 6 is a simplified schematic diagram of the motion of the present invention in a top view.
The specific embodiment is as follows:
1-6, the synchronous grinding device for the end face and the outer circle of the bearing ring comprises a turntable feeding mechanism 10, a guide wheel driving mechanism 20, a grinding wheel driving mechanism 30, a manipulator 40, a material taking table 50, a material receiving table 60 and a trimming wheel carrier 70; all the above-mentioned component structures are fixed on the integral base 1000;
the manipulator 40 and the material taking table 50 are positioned at the right side of the turntable feeding mechanism 10, the material receiving table 60 is positioned at the left side of the turntable feeding mechanism 10, a dressing wheel frame 70 is fixed in front of the left part of the turntable feeding mechanism 10, the grinding wheel driving mechanism 30 is positioned at the front of the turntable feeding mechanism 10, a dressing motor is fixed in the dressing wheel frame 70, the top end of an output shaft of the dressing motor extends out of the top surface of the dressing wheel frame 70 and is fixed with a dressing wheel 71, and the dressing wheel 71 corresponds to the grinding wheel 34 of the grinding wheel driving mechanism 30.
Further, the turntable feeding mechanism 10 includes a frame 11, the frame 11 is fixed on the top surface of the integral base 100, a bearing outer ring is fixed on the inner side wall of a through hole of a top plate of the frame 11, the bearing inner ring is fixed on a sleeve body part in the middle of a bottom plate of the turntable 12, the turntable 12 is movably connected on the top plate of the frame 11 through a bearing, an edge part of the top of the turntable 12 is formed or is fixed with an upward extending annular part 121, a plurality of rectangular stop blocks 13 are fixed on the top surface of the annular part 121, all the stop blocks 13 are uniformly distributed along the annular part 121 and are fixed on the top surface of the annular part 121, a discharge groove is formed between every two adjacent stop blocks 13, and the sizes and shapes of all the discharge grooves are the same.
The distance from the middle part to the outer side between the adjacent stop blocks 13 is larger than or equal to the diameter of the outer circle of the ferrule 100 to be processed, and the distance between the inner side between the adjacent stop blocks 13, namely, the two inner side walls at one end along the inner diameter of the annular part 121 is smaller than the outer diameter of the ferrule 100, so that the ferrule 100 cannot fall out from the inner end of the discharge groove during placing operation.
The top surface of the annular portion 121 is parallel to the integral base 1000, a driving mechanism is fixed below the frame 11, which may be that a servo rotating motor is fixed on the bottom surface of the top plate of the frame 11, an output shaft of the servo rotating motor extends into a through hole of the top plate of the frame 11 and is fixed in a connecting hole in the middle of the bottom plate of the turntable 12, so as to realize connection, a reduction gearbox and a driving motor are fixed on the top surface of the integral base 1000 below the frame 11, an output shaft of the driving motor extends into an input gear of the reduction gearbox to rotate, and an output shaft of the reduction gearbox is fixed in the middle of the bottom plate of the turntable 12, which may adopt various driving mechanisms, and the details are not described here.
The turntable 12 is a conical disk body with a small bottom end outer diameter and a large top end outer diameter, an annular part 121 extending upwards is formed at the edge part of the top of the turntable, and the top surface of the annular part 121 is a plane.
Further, the guide wheel driving mechanism 20 includes a fixing frame 21, the fixing frame 21 is a gantry, the bottom ends of two supporting legs of the fixing frame are fixed on the top surface of the integral base 1000, the frame 11 of the turntable feeding mechanism 10 is inserted into a door-shaped slot of the gantry, an extending casing 22 extending forward is formed or fixed in the middle of the top surface of the fixing frame 21, a guide wheel motor is fixed at the end of the extending casing 22, an output shaft of the guide wheel motor extends out of the bottom surface of the end of the extending casing 22 and is fixed with a guide wheel 23, the guide wheel 23 is located in the upper portion of the turntable 12, the side wall of the guide wheel 23 is close to the inner side of the material placing groove and corresponds to the outer side wall of the ferrule 100 in the material placing groove, and the guide wheel 23 is parallel to the integral base 1000.
Further, the grinding wheel driving mechanism 30 includes a lateral movement mechanism 31, the lateral movement mechanism 31 includes a main frame body, the main frame body is fixed on the top surface of the integral base 1000, a lateral movement screw is movably connected on the left and right side plates of the main frame body through bearings, a motor frame is fixed on the outer side of one side plate of the main frame body, a lateral movement motor is fixed on the motor frame, an output shaft of the lateral movement motor is connected with one end of the lateral movement screw extending out of the corresponding side plate through a coupling, a horizontal movement block 311 is screwed on the lateral movement screw, a bottom guide block is fixed on the bottom surface of the horizontal movement block 311, a lateral guide rail is fixed on the top surface of the bottom plate of the main frame body, and the lateral guide rail is inserted in a guide chute of the bottom surface of the corresponding bottom guide block;
a vertical lifting mechanism 32 is fixed on the top surface of the horizontal moving block 311; the vertical lifting mechanism 32 comprises a vertical frame body, the bottom of the vertical frame body is fixed on the top surface of the horizontal moving block 311, a vertical screw rod is arranged in the vertical frame body and is movably connected to a top plate and a bottom plate of the vertical frame body through a bearing, an upper frame body is fixed on the top plate of the vertical frame body, a lifting motor is fixed on the upper frame body, the top end of the vertical screw rod extends out of the top plate of the vertical frame body, and the bottom end of an output shaft of the lifting motor extends out of the bottom surface of the top plate of the upper frame body and is connected with the top end of the vertical screw rod through a coupler; the vertical screw rod is connected with a lifting block in a threaded manner, the outer wall surface of the lifting block is fixedly provided with a grinding wheel processing shell 33, the front wall surface of a rear vertical plate of the vertical frame body is fixedly provided with a vertical guide rail, the rear wall surface of the grinding wheel processing shell 33 is fixedly provided with a rear guide slide block, and the rear guide slide block is inserted and sleeved on the corresponding vertical guide rail.
A grinding wheel driving motor is fixed in the grinding wheel processing shell 33, the end part of an output shaft of the grinding wheel driving motor extends out of the bottom end of the grinding wheel processing shell 33 and is fixed with a grinding wheel 34, a radial extension edge 35 is formed on the outer side wall of the upper part of the grinding wheel 34, and the grinding wheel 34 is close to the outer side wall of the annular part 121;
the bottom surface of the radially extending edge 35 polishes the top end surface of the collar 100 in the discharge chute, and the outer side wall of the grinding wheel 34 polishes the outer side wall of the collar 100 in the discharge chute.
Further, the picking stage 50 is provided with a ferrule 100 to be picked and processed, the gripping portion of the manipulator 40 corresponds to the ferrule 100 on the picking stage 50, the gripping portion of the manipulator 40 corresponds to the discharging slot, and the manipulator 40 is a component device that can be purchased directly, which will not be described in detail here.
Further, the top surface of the receiving table 60 is provided with a supporting frame, an electric push rod 61 is fixed on the supporting frame, a push plate 62 is fixed at the end of the push rod of the electric push rod 61, the bottom of the push plate 62 is located at the inner side of the annular portion 121 and corresponds to the discharging groove, a transverse guide plate 63 is fixed at the top of the push plate 62, the transverse guide plate 63 is inserted into a transverse guide groove 64 formed in the middle of the top surface of the outer shell of the electric push rod 61, the side wall of the transverse guide plate 63 is tightly attached to the inner side wall of the corresponding transverse guide groove 64, and a discharging groove 65 is formed in the middle of the top surface of the receiving table 60 corresponding to the push plate 62.
Further, the feeding end of the discharging groove 65 is close to the outer side wall of the annular portion 121 and corresponds to the discharging groove, the bottom surface of the discharging groove 65 is an inclined surface, the feeding end is higher than the discharging end, and the discharging end is communicated with the upper end of the downward extending storage groove formed on the top surface of the outer end of the receiving table 60.
The machining method of the synchronous grinding machining device for the end face and the outer circle of the bearing ring comprises the following steps:
(1) During the rest period of the turntable, the manipulator 40 grabs the collar 100 placed on the top surface of the material taking table 50 and moves it to the top surface of the annular portion 121 of the turntable 12, so that the collar 100 is placed in the material discharging groove between the two corresponding stoppers 13;
(2) The turn-on movement cycle of the turn-table 12, the collar 100 rotates together with the turn-table 12 by a prescribed angle equal to the angular interval between adjacent stoppers 13 centered on the rotation axis of the turn-table 12;
(3) During the movement period of the turntable, when the ferrule 100 contacts with the guide wheel 23, the ferrule 100 enters a grinding area (namely, a position close to the grinding wheel 34), the guide wheel 23 is always in a rotating state, and under the friction force of the guide wheel 23 and the ferrule 100 and the thrust of the stop block 13, the ferrule 100 makes autorotation movement around the center of the ferrule 100 and simultaneously makes revolution movement around the center of the turntable 12;
(4) The transverse moving mechanism 31 and the vertical lifting mechanism 32 are linked, and the position of the grinding wheel 34 is adjusted, so that the height of the bottom surface of the radial extending edge 35 of the grinding wheel 34 is consistent with the height of the top end surface of the ferrule 100;
(5) With the rotation of the turntable 12, under the thrust action of the turntable 12 and the stop block 13, the ferrule 100 is in contact with the grinding wheel 34, the depth is continuously increased, meanwhile, the guide wheel 23 is in contact with the outer side wall of the corresponding ferrule 100, the rotation of the ferrule 100 is realized, the top end surface of the ferrule 100 is ground by the bottom surface of the radial extension edge 35 of the grinding wheel 34, the outer circumferential surface of the ferrule 100 is ground by the outer side wall surface of the grinding wheel 35 until the specified material removal amount is reached, and then the ferrule 100 is separated from the grinding area of the grinding wheel 34 with the rotation of the turntable 12, and the grinding process is completed; wherein, through the operation of the transverse moving mechanism 31, the transverse position of the grinding wheel 34 can be adjusted, the distance between the grinding wheel and the ferrule 100 can be adjusted, and the grinding amount of the outer wall surface of the ferrule 100 can be changed.
(6) As the turntable 12 continues to rotate, the ferrule 100 is out of contact with the guide wheel 23 until the end of the turntable 12 movement cycle;
(7) The pause period of the turntable 12 is entered again, the pushing plate 62 of the electric push rod 61 is retracted, the corresponding ferrule 100 is pushed out of the material placing groove, the ferrule 100 is pulled out of the material placing groove of the turntable 2 under the tensile force of the pushing plate 62, enters the material placing groove 65 of the material receiving table 60, and then slides into the material storing groove of the material receiving table 60 along the bottom surface of the material placing groove 65 by self gravity; then, the pushing plate 62 of the electric putter 61 returns to the initial position; the turntable 12 opens a movement cycle;
(8) Repeating the above operation continuously, completing the feeding and discharging of the ferrule 100 once every time a pause period of the turntable is experienced, and completing the grinding processing of the workpiece once every time a motion period of the turntable 12 is experienced;
(9) After finishing, the grinding wheel 34, the turntable feeding mechanism 10, the guide wheel driving mechanism 20, the manipulator 40 and the electric push rod 61 stop working, the transverse moving mechanism 31 and the vertical lifting mechanism 32 are linked, the position of the grinding wheel 34 is adjusted, the upper end face of the grinding wheel 71 is contacted with the bottom face of the radial extending edge 35 of the grinding wheel 34, then the outer side wall of the grinding wheel 71 is contacted with the lower outer side wall of the grinding wheel 34, the grinding wheel 34 starts to be finished, meanwhile, the vertical lifting mechanism 32 is operated to vertically move the grinding wheel 34 from bottom to top until the grinding wheel 71 is completely separated from contact with the grinding wheel 34, the grinding wheel 34 returns to the initial position when the grinding ferrule 100 is ground, and the grinding wheel 71 stops working when the workpiece is ground.
In this embodiment, the center of the rotation axis of the grinding wheel 34, the center of the rotation axis of the guide wheel 23 and the center of the rotation axis of the turntable 12 are perpendicular to the whole base 1000, and the center of the rotation axis of the grinding wheel 34 and the center of the rotation axis of the guide wheel 23 are both disposed on the same side of the center of the rotation axis of the turntable 12. The eccentric distance exists between the rotating shaft center of the guide wheel 23 and the rotating shaft center of the rotary table 12, and the shortest distance between the outer circle of the guide wheel 23 and the side, close to the outer circle, of the annular part 121 of the rotary table 12 is larger than the length of the stop block 13.
There is an eccentricity between the center of the axis of rotation of the grinding wheel 34 and the center of the axis of rotation of the guide wheel 23, the word deflection being equal to the sum of the radius of the grinding wheel 34, the radius of the guide wheel 12, and the outer diameter of the ferrule 100 minus the specified amount of material removal.
In this embodiment, the guide wheel 23 and the grinding wheel 34 simultaneously rotate continuously and the rotation speed direction is opposite, and since the friction force between the guide wheel 23 and the outer side wall of the ferrule 100 is greater than the friction force between the ferrule 100 and the grinding wheel 34, the rotation direction of the ferrule 100 is opposite to the rotation direction of the guide wheel 23, and the rotation direction of the ferrule 100 is the same as the rotation direction of the grinding wheel 34;
at the same time, the turntable 12 rotates periodically and intermittently, i.e. rotates one station (rotates one discharge chute to stop), the rotation direction of the turntable 12 is opposite to the guide wheel 23,
if the grinding wheel 34 is replaced by a grinding disk or a polishing disk, the method of the embodiment can also be suitable for grinding and polishing the planar part, and further improves the surface quality of the workpiece. If the two devices in the embodiment are used in series in pairs, the automatic grinding processing of the two end faces and the outer circle of the workpiece can be realized by combining the workpiece (annular piece) turn-over device.

Claims (10)

1. The utility model provides a synchronous abrasive machining device of bearing ring terminal surface and excircle, includes carousel feed mechanism (10), guide pulley actuating mechanism (20) and sand wheel actuating mechanism (30), its characterized in that: the rotary table feeding mechanism (10) comprises a frame (11), a rotary table (12) is movably connected to a top plate of the frame (11), an upward extending annular part (121) is formed at the edge part of the top of the rotary table (12), a plurality of stop blocks (13) are fixed on the top surface of the annular part (121), and a discharge groove is formed between every two adjacent stop blocks (13);
the guide wheel driving mechanism (20) comprises a fixing frame (21), an extension shell (22) is fixed at the top of the fixing frame (21), a guide wheel motor is arranged at the end part of the extension shell (22), an output shaft of the guide wheel motor extends out of the bottom surface of the end part of the extension shell (22) and is fixedly provided with a guide wheel (23), the side wall of the guide wheel (23) is close to the inner side of one of the discharging grooves and corresponds to the outer side wall of a ferrule (100) in the discharging groove, and the central axis of the guide wheel (230) and the central axis of the rotary table (12) are eccentrically arranged;
the grinding wheel driving mechanism (30) comprises a transverse moving mechanism (31), a vertical lifting mechanism (32) is fixed on the top surface of a horizontal moving block (311) of the transverse moving mechanism (31), a grinding wheel machining shell (33) is fixed on the outer wall surface of the lifting block of the vertical lifting mechanism (32), a grinding wheel driving motor is installed in the grinding wheel machining shell (33), the end part of an output shaft of the grinding wheel driving motor extends out of the bottom end of the grinding wheel machining shell (33) and is fixedly provided with a grinding wheel (34), a radial extending edge (35) is formed on the outer side wall of the upper part of the grinding wheel (34), and the grinding wheel (34) is close to the outer side wall of the annular part (121);
the bottom surface of the radial extension edge (35) polishes the top end surface of the ferrule (100) in the discharge groove, and the outer side wall of the grinding wheel (34) polishes the outer side wall of the ferrule (100) in the discharge groove.
2. The bearing ring end face and outer circle synchronous grinding device according to claim 1, wherein: one side of the turntable feeding mechanism (10) is provided with a manipulator (40) and a material taking table (50), a ferrule (100) to be grasped and processed is placed on the material taking table (50), a grasping part of the manipulator (40) corresponds to the ferrule (100) on the material taking table (50), and a grasping part of the manipulator (40) corresponds to the material discharging groove.
3. The bearing ring end face and outer circle synchronous grinding device according to claim 1, wherein: the material collecting table (60) is installed at one side of the rotary table (12), the supporting frame is installed on the top surface of the material collecting table (60), the electric push rod (61) is fixed on the supporting frame, the pushing plate (62) is fixed at the end part of the push rod of the electric push rod (61), the bottom of the pushing plate (62) is located at the inner side of the annular part (121) and corresponds to the material discharging groove, the transverse guide plate (63) is fixed at the top of the pushing plate (62), the transverse guide plate (63) is inserted and sleeved in the transverse guide groove (64) formed in the middle of the top surface of the outer shell of the electric push rod (61), the side wall of the transverse guide plate (63) is tightly attached to the inner side wall of the corresponding transverse guide groove (64), and the blanking groove (65) is formed in the middle of the top surface of the material collecting table (60) corresponding to the pushing plate (62).
4. A bearing ring end face and outer circle synchronous grinding device according to claim 3, characterized in that: the feeding end of the blanking groove (65) is close to the outer side wall of the annular part (121) and corresponds to the discharging groove, the bottom surface of the blanking groove (65) is an inclined surface, the feeding end of the blanking groove is higher than the discharging end, and the discharging end is communicated with the upper end of a downward extending storage groove formed on the top surface of the outer end of the receiving table (60).
5. The bearing ring end face and outer circle synchronous grinding device according to claim 1, wherein: a dressing wheel frame (70) is fixed at one side corresponding to the grinding wheel (34).
6. The bearing ring end face and outer circle synchronous grinding device according to claim 1, wherein: the rotary table (12) is a conical table body, an annular part (121) extending upwards is formed at the edge part of the top of the rotary table, the top surface of the annular part (121) is a plane, and a transverse moving mechanism (31) is arranged at the front part of the rotary table (12);
the fixed frame (21) is a portal frame, a frame (11) of the turntable feeding mechanism (10) is inserted into a portal slot of the portal frame, an extending shell (22) extending forwards is formed in the middle of the top surface of the fixed frame (21), a guide wheel (23) is positioned in the upper part of the turntable (12), and the side wall of the guide wheel (23) is close to the inner side of the material placing groove and corresponds to the outer side wall of a ferrule (100) in the material placing groove.
7. The bearing ring end face and outer circle synchronous grinding device according to claim 2, wherein: a manipulator (40) and a material taking table (50) are arranged on the right side of the turntable feeding mechanism (10).
8. A bearing ring end face and outer circle synchronous grinding device according to claim 3, characterized in that: a receiving table (60) is arranged at the left side of the turntable feeding mechanism (10).
9. The bearing ring end face and outer circle synchronous grinding device according to claim 5, wherein: a trimming wheel carrier (70) is fixed in front of the left part of the turntable feeding mechanism (10), a trimming motor is fixed in the trimming wheel carrier (70), the top end of an output shaft of the trimming motor extends out of the top surface of the trimming wheel carrier (70) and is fixed with a trimming wheel (71), and the trimming wheel (71) corresponds to the grinding wheel (34).
10. A machining method of the bearing ring end face and outer circle synchronous grinding machining device according to any one of claims 1 to 9, characterized in that: it comprises the following steps:
(1) In the idle period of the turntable, the manipulator (40) grabs the ferrule (100) placed on the top surface of the material taking table (50) and moves the ferrule to the top surface of the annular part (121) of the turntable (12), so that the ferrule (100) is placed in the material discharging groove between the two corresponding stop blocks (13);
(2) The rotary table (12) is opened for a movement period, and the ferrule (100) rotates together with the rotary table (12) for a specified angle which is equal to the angular interval between adjacent stop blocks (13) taking the rotary shaft of the rotary table (12) as the center;
(3) In the movement period of the turntable, when the ferrule (100) is in contact with the guide wheel (23), the ferrule (100) enters a grinding area, the guide wheel (23) is always in a rotating state, and under the friction force between the guide wheel (23) and the ferrule (100) and the thrust force of the stop block (13), the ferrule (100) makes autorotation movement around the center of the ferrule, and simultaneously makes revolution movement around the center of the turntable (12);
(4) The transverse moving mechanism (31) is linked with the vertical lifting mechanism (32), and the position of the grinding wheel (34) is adjusted to enable the bottom surface height of the radial extending edge (35) of the grinding wheel (34) to be consistent with the top end surface height of the ferrule (100);
(5) With the rotation of the turntable (12), under the thrust action of the turntable (12) and the stop block (13), the ferrule (100) is in contact with the grinding wheel (34), the depth is continuously increased, meanwhile, the guide wheel (23) is in contact with the outer side wall of the corresponding ferrule (100), the rotation of the ferrule (100) is realized, the top end surface of the ferrule (100) is ground by the bottom surface of the radial extension edge (35) of the grinding wheel (34), the outer side wall surface of the ferrule (100) is ground by the outer side wall surface of the grinding wheel (35) until the specified material removal amount is reached, and then the ferrule (100) is separated from the grinding area of the grinding wheel (34) along with the continued rotation of the turntable (12), and the grinding process is completed;
(6) As the turntable (12) continues to rotate, the ferrule (100) is out of contact with the guide wheel (23) until the movement period of the turntable (12) is finished;
(7) The suspension period of the turntable (12) is entered again, the pushing plate (62) of the electric push rod (61) is retracted, the corresponding ferrule (100) is pushed out of the material placing groove, the ferrule (100) is pulled out of the material placing groove of the turntable (2) under the action of the pulling force of the pushing plate (62) and enters the material discharging groove (65) of the material receiving table (60), and then slides into the material storing groove of the material receiving table (60) along the bottom surface of the material discharging groove (65) through self gravity; then, the pushing plate (62) of the electric push rod (61) returns to the initial position; the turntable (12) opens a movement cycle;
(8) The operation is repeated continuously, the feeding and discharging of the ferrule (100) are completed once every time a pause period of the turntable is experienced, and the grinding processing of the workpiece is completed once every time a movement period of the turntable (12) is experienced;
(9) After the machining is finished, the grinding wheel (34) is trimmed, the rotary table feeding mechanism (10), the guide wheel driving mechanism (20), the manipulator (40) and the electric push rod (61) stop working, the transverse moving mechanism (31) and the vertical lifting mechanism (32) are linked, the position of the grinding wheel (34) is adjusted, the upper end face of the trimming wheel (71) is contacted with the bottom face of the radial extending edge (35) of the grinding wheel (34), then the outer side wall of the trimming wheel (71) is contacted with the outer side wall of the lower part of the grinding wheel (34), the grinding wheel (34) is trimmed, meanwhile, the vertical lifting mechanism (32) operates, the grinding wheel (34) vertically moves from bottom to top until the trimming wheel (71) is completely separated from the grinding wheel (34), the trimming process is finished, the grinding wheel (34) returns to the initial position when the grinding wheel is ground to the machining ferrule (100), and the grinding wheel (71) stops working when the workpiece is ground.
CN202311465154.3A 2023-11-07 2023-11-07 Synchronous grinding device and method for end face and outer circle of bearing ring Pending CN117300758A (en)

Priority Applications (1)

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CN202311465154.3A CN117300758A (en) 2023-11-07 2023-11-07 Synchronous grinding device and method for end face and outer circle of bearing ring

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Application Number Priority Date Filing Date Title
CN202311465154.3A CN117300758A (en) 2023-11-07 2023-11-07 Synchronous grinding device and method for end face and outer circle of bearing ring

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CN117300758A true CN117300758A (en) 2023-12-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117644442A (en) * 2024-01-25 2024-03-05 洛阳普瑞森精密轴承有限公司 Bearing ring grinding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117644442A (en) * 2024-01-25 2024-03-05 洛阳普瑞森精密轴承有限公司 Bearing ring grinding device
CN117644442B (en) * 2024-01-25 2024-04-05 洛阳普瑞森精密轴承有限公司 Bearing ring grinding device

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