WO2022071190A1 - Dispositif de meulage à rouleaux et support - Google Patents

Dispositif de meulage à rouleaux et support Download PDF

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Publication number
WO2022071190A1
WO2022071190A1 PCT/JP2021/035276 JP2021035276W WO2022071190A1 WO 2022071190 A1 WO2022071190 A1 WO 2022071190A1 JP 2021035276 W JP2021035276 W JP 2021035276W WO 2022071190 A1 WO2022071190 A1 WO 2022071190A1
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WO
WIPO (PCT)
Prior art keywords
work
carrier
line segment
virtual line
roller grinding
Prior art date
Application number
PCT/JP2021/035276
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English (en)
Japanese (ja)
Inventor
航 溝垣
Original Assignee
Ntn株式会社
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Filing date
Publication date
Application filed by Ntn株式会社 filed Critical Ntn株式会社
Publication of WO2022071190A1 publication Critical patent/WO2022071190A1/fr

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    • 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
    • B24B5/313—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving work-supporting means carrying several workpieces to be operated on in succession
    • 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
    • B24B5/313—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving work-supporting means carrying several workpieces to be operated on in succession
    • B24B5/32—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving work-supporting means carrying several workpieces to be operated on in succession the work-supporting means being indexable
    • 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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor

Definitions

  • the present invention relates to a roller grinder and a carrier used in the roller grinder.
  • roller bearings such as cylindrical roller bearings and conical roller bearings
  • both ends of the rolling surface in the axial direction of the rollers are used. It is known when the crowning part was formed.
  • Japanese Unexamined Patent Publication No. 2010-017788 discloses a roller grinding device for forming a crowning portion into a work by through-field grinding.
  • the roller grinding device suppresses the variation in the position of the work in the direction along the rotation axis of the work only by the gravity acting on the work. It is provided.
  • a main object of the present invention is to provide a roller grinding device and a carrier capable of suppressing variation in the position of the crowning portion in the axial direction of the roller and variation in outer diameter dimension as compared with the conventional roller grinding device.
  • the roller grinding device is a roller grinding device for grinding a work, and has a first plate having a work driving surface and a second surface having a grinding surface facing the work driving surface in a direction intersecting the work driving surface. It is provided with a carrier which is arranged between the board and the work driving surface and the grinding surface and has a pocket for accommodating the work, and a guide portion for guiding the end surface of the work accommodated in the pocket.
  • the work drive surface is provided so as to rotate in the first direction.
  • the carrier is provided so as to rotate in the direction opposite to the first direction.
  • the carrier is housed in a pocket and is provided so that the rotation axis of the work in contact with the work drive surface and the grinding surface is inclined with respect to the radial direction of the carrier.
  • the carrier has a first end portion facing the pocket on the front side in the opposite direction and a second end portion facing the first end portion across the pocket in the opposite direction.
  • a first virtual line segment extending along the radial direction of the carrier through the first midpoint between the inner peripheral end of the first end and the inner peripheral end of the second end in the opposite direction.
  • the first end portion may be tilted toward the rear side in the opposite direction to the second virtual line segment in a plan view.
  • the line segment may be tilted toward the rear side in the opposite direction to the first virtual line segment.
  • the guide portion may be provided to guide the large end surface of the work.
  • the first end portion may be tilted toward the front side in the opposite direction to the second virtual line segment in a plan view.
  • the line segment may be tilted toward the front side in the opposite direction to the first virtual line segment.
  • the guide portion may be provided to guide the small end surface of the work.
  • the first direction and the opposite direction are circumferential directions centered on the first rotation axis
  • the grinding surface is provided so as to rotate in the second direction
  • the second direction is the first rotation axis. It is a circumferential direction centered on a second rotation axis that is inclined with respect to the second direction, and the front side of the second direction faces the rear side of the first direction.
  • the carrier according to the present invention is the carrier provided in the roller grinder, and the opening width in the first direction on the second board side of the pocket is larger than the opening width in the first direction on the first board side of the pocket. Is also narrow.
  • the present invention it is possible to provide a roller grinding device and a carrier capable of suppressing variation in the position of the crowning portion in the axial direction of the roller as compared with the conventional roller grinding device.
  • FIG. 1 It is a figure which shows the roller grinding apparatus which concerns on this embodiment. It is a partially enlarged view of the roller grinding apparatus shown in FIG. It is a top view of the carrier of the roller grinding apparatus shown in FIG. It is a partially enlarged view of the carrier shown in FIG. It is a partially enlarged view of the modification of the carrier shown in FIG.
  • the roller grinding device 100 of the present embodiment is an device that grinds the entire outer diameter surface of the work W (see FIG. 2) and processes the work W into rollers used for roller bearings.
  • the roller grinding device 100 processes the work W into rollers.
  • the roller has end faces formed at both ends of the rolling shaft of the roller and an outer diameter surface connecting the end faces.
  • the outer diameter surface includes a straight portion whose outer diameter is constantly provided in the direction along the rolling axis, and a crowning portion processed so that the outer diameter gradually decreases from the straight portion to the end face. have.
  • FIG. 1 is a diagram showing a roller grinding device 100 according to the present embodiment.
  • FIG. 2 is a partially enlarged view of the roller grinding apparatus shown in FIG. In FIG. 2, each member is illustrated with reference to the first rotation axis O1.
  • FIG. 3 is a plan view of the carrier 3 as viewed from the second board 2 side.
  • FIG. 4 is a partially enlarged view of the carrier 3.
  • the guide portion 4 is not shown.
  • the illustration of the first board 1 is omitted.
  • the roller grinding apparatus 100 includes a first plate 1, a second plate 2, a carrier 3, and a guide portion 4.
  • the first board 1 is configured as a drive grindstone board.
  • the first board 1 has a work drive surface 1a and a first rotation shaft portion 1b.
  • the work drive surface 1a is connected to one end of the first rotation shaft portion 1b, and is provided so as to rotate in the first direction A by the first rotation shaft portion 1b.
  • the first direction A is a circumferential direction centered on the first rotation axis O1 extending along the direction intersecting the work drive surface 1a.
  • the work drive surface 1a has a plane that intersects with the first rotation axis O1.
  • the first rotation axis O1 extends in a direction intersecting the vertical direction. In other words, the work drive surface 1a is inclined with respect to the horizontal plane.
  • the work drive surface 1a comes into contact with the outer peripheral surface of the work during grinding to drive the work.
  • the second board 2 is configured as a grinding wheel.
  • the second plate 2 has a grinding surface 2a and a second rotating shaft portion 9.
  • the grinding surface 2a is provided so as to face the work drive surface 1a in the direction along the first rotation axis O1.
  • the grinding surface 2a is connected to one end of the second rotating shaft portion 9 and is provided so as to rotate in the second direction C by the second rotating shaft portion 9.
  • the second direction C is a circumferential direction centered on the second rotation axis O2 extending along the direction intersecting the grinding surface 2a.
  • the second rotation axis O2 extends in a direction intersecting the vertical direction. In other words, the grinding surface 2a is inclined with respect to the horizontal plane.
  • the second rotation axis O2 is inclined so as to form an angle ⁇ with respect to the first rotation axis O1, for example.
  • the angle ⁇ is adjusted by the size of the work W and the amount of crowning, but is, for example, less than 1 degree.
  • the ground surface 2a has a crowning portion.
  • the shape of the crowning portion may be any crowning shape, but for example, the logarithmic crowning shape approximated by the logarithmic curve and the radius of curvature R are substantially constant. It is a single R shape or a composite R shape in which a plurality of arcs having different radii of curvature R are smoothly connected.
  • the grinding surface 2a comes into contact with the outer peripheral surface of the work during grinding and grinds it.
  • the carrier 3 is arranged between the work driving surface 1a and the grinding surface 2a.
  • the carrier 3 is arranged at a distance from each of the work drive surface 1a and the grinding surface 2a in the direction along the first rotation axis O1.
  • the carrier 3 has a third rotation shaft portion 5.
  • the carrier 3 is connected to one end of the third rotation shaft portion 5 and is provided so as to be rotated in the third direction B by the third rotation shaft portion 5.
  • the third direction B is a circumferential direction centered on the first rotation axis O1 and is a direction opposite to the first direction A.
  • the carrier 3 is formed with a plurality of pockets 8 for accommodating the work W.
  • the plurality of pockets 8 are arranged so as to be spaced apart from each other in the third direction B.
  • the plurality of pockets 8 are open on the outer peripheral surface of the carrier 3 in the radial direction with respect to the first rotation axis O1.
  • the carrier 3 has a plurality of first end faces 7A and a plurality of second end faces 7B.
  • One first end surface 7A and one second end surface 7B are arranged so as to face each other with one pocket 8 interposed therebetween in the third direction B.
  • Each first end surface 7A is arranged in front of the pocket 8 in the third direction B and faces the pocket 8.
  • Each second end surface 7B is arranged behind the pocket 8 in the third direction B and faces the pocket 8.
  • the end portion located on the rear side of the third direction B on the first end surface 7A and located on the second board 2 side in the direction along the first rotation axis O1 is referred to as the first end portion 70A.
  • the end portion located on the front side of the third direction B on the second end surface 7B and located on the second board 2 side in the direction along the first rotation axis O1 is referred to as the second end portion 70B.
  • the carrier 3 has a plurality of first end portions 70A and a plurality of second end portions 70B.
  • One first end portion 70A and one second end portion 70B are arranged so as to face each other with one pocket 8 interposed therebetween in the third direction B.
  • Each first end 70A is arranged in front of the pocket 8 in the third direction B and faces the pocket 8.
  • Each second end 70B is located behind the pocket 8 in the third direction B and faces the pocket 8.
  • the first end surface 7A is provided so as to be inclined toward the first board 1 side with respect to the direction along the first rotation axis O1.
  • the second end surface 7B is provided so as to follow the direction along the first rotation axis O1.
  • the shape of the pocket 8 seen from the radial direction is trapezoidal.
  • the distance between the first end portion 70A and the second end portion 70B in the third direction B is provided to be narrower than the outer diameter of the work W.
  • the thickness of the carrier 3 in the direction along the first rotation axis O1 is thinner than the outer diameter of the work W.
  • the midpoint of the third direction B between the inner peripheral end of the first end 70A and the inner peripheral end of the second end 70B is the first midpoint C1.
  • the midpoint of the third direction B between the outer peripheral end of the first end 70A and the outer peripheral end of the second end 70B is defined as the second midpoint C2.
  • the virtual line extending along the radial direction of the carrier 3 through the first midpoint C1 is defined as the first virtual line segment L1.
  • a virtual line drawn line-symmetrically with the second end 70B with respect to the first virtual line segment L1 is referred to as a second virtual line segment L2.
  • the virtual line connecting the first midpoint C1 and the second midpoint C2 is referred to as a third virtual line segment L3.
  • the rotation axis of the work W is the third rotation axis O3.
  • the rotation axis of the work W is the rotation axis of the work W when the work W is ground by the roller grinding device 100.
  • the first end 70A is tilted with respect to the second virtual line segment L2.
  • the first end portion 70A is inclined toward the rear side of the third direction B with respect to the second virtual line segment L2.
  • the inclination angle ⁇ of the first end portion 70A with respect to the second virtual line segment L2 is 5 minutes or more and 5 degrees or less.
  • the third virtual line segment L3 is inclined toward the rear side of the third direction B with respect to the first virtual line segment L1.
  • the inclination angle ⁇ of the third virtual line segment L3 with respect to the first virtual line segment L1 is 5 minutes or more and 5 degrees or less, and is equal to, for example, the above inclination angle ⁇ .
  • the carrier 3 is provided so that the third rotation axis O3 of the work W housed in the pocket 8 is tilted toward the rear side of the third direction B with respect to the first virtual line segment L1. ing.
  • the tilt angle X of the third rotation axis O3 with respect to the first virtual line segment L1 is 5 minutes or more and 5 degrees or less, and is, for example, equal to the tilt angle ⁇ .
  • the guide portion 4 is provided in an arc shape along the circumferential direction with respect to the first rotation axis O1. As shown in FIGS. 2 and 3, the guide portion 4 is arranged on the outer peripheral side of the carrier 3. The guide portion 4 is arranged so as to overlap the pocket 8 in the radial direction. The guide portion 4 is fixed to the first board 1. The guide portion 4 has an inner peripheral surface facing the carrier 3 side.
  • the first plate 1 and the carrier 3 are arranged so that the first rotation axis O1 intersects the vertical direction.
  • the second board 2 is arranged so that the second rotation axis O2 intersects the vertical direction.
  • the first board 1 is rotatably supported by, for example, the first board support base 12.
  • the first board 1 is rotationally driven in the first direction A by using the motor 16 provided on the first board support base 12 as a drive source.
  • the first rotary shaft portion 1b of the first board 1 is rotatably supported by the first board support base 12 via a bearing (not shown), and is rotatably supported via the pulley 17, the belt 18, and the pulley 19. It is connected to the output shaft 16a of the motor 16.
  • the rotation of the output shaft 16a of the motor 16 is transmitted to the first rotation shaft portion 1b of the first board 1 via the pulley 17, the belt 18, and the pulley 19.
  • the first rotation shaft portion 1b is provided in a cylindrical shape.
  • the carrier 3 is rotatably supported by the first board support base 12 independently of the first board 1.
  • the carrier 3 is rotationally driven in a third direction B opposite to that of the first board 1 by using a motor 20 provided on the first board support 12 as a drive source.
  • the third rotary shaft portion 5 of the carrier 3 rotatably supports the inside of the first rotary shaft portion 1b through the work drive surface 1a of the first board 1 and via a bearing (not shown). Has been done.
  • the third rotation shaft portion 5 is arranged concentrically with the first rotation shaft portion 1b.
  • the third rotary shaft portion 5 is connected to the output shaft 20a of the motor 20 via the pulley 21, the belt 22, and the pulley 23. As a result, the rotation of the output shaft 20a of the motor 20 is transmitted to the third rotation shaft portion 5 of the carrier 3 via the pulley 21, the belt 22, and the pulley 23.
  • the second board 2 is rotatably supported by the second board support base 14.
  • the second board 2 is rotationally driven by using the motor 25 provided on the second board support base 14 as a drive source.
  • the second rotary shaft portion 9 of the second board 2 is rotatably supported by a bearing (not shown) on the second board support base 14.
  • the second rotary shaft portion 9 is connected to the output shaft 25a of the motor 25 via the pulley 26, the belt 27, and the pulley 28.
  • the rotation of the output shaft 25a of the motor 25 is transmitted to the second rotation shaft portion 9 via the pulley 26, the belt 27, and the pulley 28.
  • the second board 2 is detachable from, for example, the grindstone mounting disk 10 provided at one end of the second rotating shaft portion 9.
  • the second board support base 14 is supported by the guide base 13 so as to be able to move forward and backward.
  • the guide base 13 has a rail 29 extending along the second rotation axis O2, and the second board support base 14 is provided so as to move along the rail 29.
  • the second board support base 14 is driven forward and backward using the motor 30 provided on the guide base 13 as a drive source.
  • the second board support base 14 is connected to the output shaft of the motor 30 via the ball screw 31 and the nut 32 screwed to the ball screw 31.
  • the rotation of the output shaft of the motor 30 is converted into the advancing / retreating operation of the second board support base 14 via the ball screw 31 and the nut 32.
  • the second board support base 14 is connected to the balance weight 34 via the cord 33.
  • the first board support base 12 and the guide base 13 are fixed on the bed 11.
  • the bed 11 has an upward inclined surface 11a, and the first board support base 12 and the guide base 13 are fixed to the inclined surface 11a.
  • the guide base 13 is arranged above the first board support base 12.
  • Each of the motors 16, 20, 25, 30 is controlled by the control unit 37 shown in FIG.
  • the control unit 37 individually controls the rotational speeds of the motor 16 for rotating the first panel 1 and the motor 20 for rotationally driving the carrier 3.
  • the second rotation axis O2 of the second board 2 is inclined at an angle ⁇ with respect to the first rotation axis O1 of the first board 1.
  • a wide spacing area where the distance between the second board 2 and the carrier 3 is wider than the outer diameter of the work W, and the second board 2 and the carrier 3
  • a narrow space area is provided in which the space between them is equal to or less than the outer diameter of the work W.
  • the wide space area is provided with a work supply unit 35 that supplies the work W from the outer peripheral end side of the pocket 8 and a work discharge unit 36 that discharges the work W from the outer peripheral end side of the pocket 8.
  • the work discharge unit 36 is arranged at a distance from the work supply unit 35 in the third direction B, and is arranged so as to face, for example, the first rotation shaft O1.
  • the roller grinding device 100 may further include an adjustment unit (not shown) for adjusting the inclination angle ⁇ of the second rotation axis O2 with respect to the first rotation axis O1.
  • the grinding process using the roller grinding device 100 will be described.
  • the first board 1 rotates along the first direction A
  • the second board 2 rotates along the second direction C
  • the carrier 3 rotates along the third direction B.
  • the rotation speed of the first board is 10 times or more the rotation speed of the carrier 3.
  • the rotation speed of the carrier 3 may be a constant rotation speed depending on the work W to be machined, or the rotation speed may be changed to improve the machining accuracy.
  • the work W is supplied from the work supply unit 35 into the pocket 8 of the carrier 3.
  • the work W is sent to the narrow space region by rotating the carrier 3 along the third direction B.
  • the work W revolves and rotates by rotating the first board 1 and the second board 2 in opposite directions in the narrow space region.
  • the work W shown in FIGS. 2 and 3 revolves counterclockwise in FIG. 3 and rotates clockwise in FIG. 2.
  • the work W is ground by the second board 2 in the narrow interval region. Since the ground surface 2a has a crowning portion, the crowning portion is formed on the outer diameter surface of the work W. Further, since the second rotation axis O2 of the second board 2 is inclined by an angle ⁇ with respect to the first rotation axis O1 of the first board 1, a cut is formed in the work W in the above grinding process. To.
  • the work W ground in the narrow space region is sent to the work discharge unit 36 provided in the wide space area, and is discharged to the outside from the pocket 8 in the work discharge unit 36. In this way, the work W is machined into the rollers of the roller bearing.
  • a force toward the front side of the third direction B is applied to the work W in the narrow space region by the first board 1.
  • the work W in the narrow space region comes into contact with the first end portion 70A of the carrier 3.
  • the first end portion 70A is applied to the work W in contact with the first end portion 70A.
  • a part of the force toward the front side in the three directions B is converted into a force that pushes the work W toward the outer peripheral side of the carrier 3 by the first end portion 70A.
  • the large end surface of the work W is pressed against the inner peripheral surface of the guide portion 4 and guided.
  • the roller grinding apparatus 100 the fluctuation of the position of the work W with respect to the first rotating shaft O1 is suppressed in the narrow interval region, and grinding and movement are performed smoothly and stably.
  • the carrier is housed in a pocket, and the rotation axis of the work in contact with the work driving surface is provided so as to be along the radial direction of the carrier. From a different point of view, both ends arranged so as to sandwich the pocket in the rotation direction of the carrier are provided line-symmetrically with respect to the first virtual line segment. That is, in the carrier of the conventional roller grinding device, the front end portion which is arranged on the front side of the pocket and faces the pocket is provided so as to overlap with the second virtual line segment.
  • a force capable of suppressing variation in the position of the work in the direction along the rotation axis of the work is unlikely to act on the work accommodated in such a carrier.
  • the work housed in the conventional carrier receives a force toward the front side in the rotational direction of the second plate during grinding and comes into contact with the front end portion of the carrier.
  • the front end portion has the above-mentioned configuration, the component force of such a force in the direction along the above-mentioned rotation axis is large enough to suppress the above-mentioned variation in the position of the work. not.
  • the position of the crowning portion in the axial direction of the roller varies.
  • the roller grinding device 100 includes a first plate 1 having a work drive surface 1a, a second plate 2 having a grinding surface 2a facing the work drive surface 1a in a direction intersecting the work drive surface 1a, and a work.
  • a carrier 3 which is arranged between the drive surface 1a and the grinding surface 2a and has a pocket 8 for accommodating the work W, and a guide portion 4 for guiding the end surface of the work W accommodated in the pocket 8.
  • the work drive surface 1a is provided so as to rotate in the first direction A.
  • the carrier 3 is provided so as to rotate in the third direction B, which is the direction opposite to the first direction A.
  • the carrier 3 is housed in the pocket 8 and is provided so that the third rotation axis O3 of the work W in contact with the work drive surface 1a and the grinding surface 2a is inclined with respect to the radial direction of the carrier 3.
  • the carrier 3 passes through the first midpoint C1 between the inner peripheral end of the first end 70A and the inner peripheral end of the second end 70B in the third direction B.
  • first virtual line segment L1 extending along the radial direction of the first virtual line segment L1 and the second virtual line segment L2 drawn line-symmetrically with the second end 70B with respect to the first virtual line segment L1 are introduced.
  • One end 70A is tilted with respect to the second virtual line segment L2.
  • the component force of the force acting on the work in contact with the first end portion 70A of the carrier 3 in the roller grinding device 100 in the direction along the rotation axis is applied to the front end portion of the carrier in the conventional roller grinding device.
  • the force acting on the contacted work becomes larger than the component force in the direction along the rotation axis.
  • the first end portion 70A is tilted toward the rear side of the third direction B with respect to the second virtual line segment L2 in a plan view.
  • the first midpoint C1 and the second midpoint C2 between the outer peripheral end of the first end 70A and the outer peripheral end of the second end 70B in the third direction B.
  • the third virtual line segment L3 connecting the above and the third virtual line segment L1 is inclined toward the rear side of the third direction B with respect to the first virtual line segment L1.
  • the guide portion 4 is arranged on the outer peripheral side of the pocket 8 in the radial direction. Therefore, the component force acts as a force for pressing the work W against the guide portion 4.
  • the roller grinding device 100 can suppress variations in the position of the crowning portion in the axial direction of the rollers as compared with the conventional roller grinding device.
  • the conventional roller grinding device is provided so as to form only the crowning portion based on the outer diameter of the work, the cutting amount of the crowning portion due to the variation in the outer diameter dimension of the work before grinding. Also varies. If the outer diameter of the work is relatively large, the amount of cut in the crowning portion becomes large. If the outer diameter of the work is relatively small, the amount of cut in the crowning portion is small.
  • the roller grinding device 100 can simultaneously form a straight portion and a crowning portion on the work W. That is, the roller grinding device 100 can grind the entire outer diameter surface at the same time. Therefore, the depth of cut in the crowning portion of the roller grinding device 100 does not depend on the variation in the outer diameter of the work before grinding. As a result, the variation in the cutting amount of the crowning portion in the roller grinding device 100 is reduced as compared with that of the conventional roller grinding device.
  • FIG. 5 is a partially enlarged view of a modified example of the carrier 3 shown in FIG. In FIG. 5, the guide portion 4 is not shown.
  • the first end portion 70A may be inclined toward the front side of the third direction B with respect to the second virtual line segment L2.
  • the first midpoint C1 and the second midpoint between the outer peripheral end of the first end 70A and the outer peripheral end of the second end 70B in the third direction B may be inclined toward the front side of the third direction B with respect to the first virtual line segment L1.
  • the guide portion 4 may be provided so as to guide the small end surface of the work W in the radial direction.
  • the component force of the force acting on the work in contact with the first end portion 70A of the carrier 3 in the direction along the rotation axis is in contact with the front end portion of the carrier in the conventional roller grinding machine.
  • the force acting on the work is larger than the component force in the direction along the rotation axis.
  • the component force acts as a force for pressing the work W against the guide portion 4.
  • the roller grinding device 100 provided with the carrier 3 shown in FIG. 5 can also suppress variations in the position of the crowning portion in the axial direction of the rollers as compared with the conventional roller grinding device.
  • the first rotation axis O1 of the first board 1 is inclined with respect to the horizontal plane and the vertical direction, but the first rotation axis O1 of the first board 1 is along the vertical direction. It may be provided in.
  • gravity does not act as a force for pressing the work W against the guide portion 4, but according to the roller grinding device 100, a part of the force acting on the work in contact with the first end portion 70A of the carrier 3 is part of the work W. Acts as a force to press the guide portion 4.
  • a roller grinding device 100 can also suppress variations in the position of the crowning portion in the axial direction of the rollers as compared with the conventional roller grinding device.
  • the work W is arranged on the work driving surface 1a of the first panel 1, the work W is more likely to rotate on its axis than the roller grinding device 100 shown in FIG. As a result, the manufacture and adjustment of such a roller grinding device 100 becomes simpler than that of the roller grinding device 100 shown in FIG.
  • the first rotation axis O1 of the first board 1 may be provided along the horizontal direction.
  • the work supply unit 35 may be arranged above the carrier 3, and the work discharge unit 36 may be arranged below the carrier 3. In this way, the work is easily supplied to the pocket and easily ejected from the pocket.
  • roller grinding device 100 may be provided so as to grind the entire outer diameter surface of the work W into a crowning shape.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

L'invention concerne un dispositif de meulage à rouleaux (100) qui comprend : un premier panneau (1) ayant une surface d'entraînement de pièce (1a) ; un second panneau (2) ayant une surface de meulage (2a) faisant face à la surface d'entraînement de pièce (1a) dans une direction intersectant la surface d'entraînement de pièce (1a) ; un support (3) qui est disposé entre la surface d'entraînement de pièce (1a) et la surface de meulage (2a), et dans lequel une poche (8) est formée pour recevoir la pièce (W) ; et une partie de guidage (4) qui guide une surface d'extrémité de la pièce (W) reçue dans la poche (8). La surface d'entraînement de pièce (1a) est disposée de façon à tourner dans une première direction (A). Le support (3) est disposé de façon à tourner dans une troisième direction (B), qui est la direction opposée à la première direction (A). Le support (3) est disposé de telle sorte qu'un troisième axe de rotation (O3) de la pièce (W) reçue dans la poche (8) et en contact avec la surface d'entraînement de pièce (1a) et la surface de meulage (2a) s'incline dans la direction radiale du support (3).
PCT/JP2021/035276 2020-09-30 2021-09-27 Dispositif de meulage à rouleaux et support WO2022071190A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-165852 2020-09-30
JP2020165852A JP7546432B2 (ja) 2020-09-30 2020-09-30 ころ研削装置およびキャリア

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CN115229599A (zh) * 2022-08-09 2022-10-25 首钢智新迁安电磁材料有限公司 一种磨削机和轧制生产线

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JPH09150353A (ja) * 1995-11-30 1997-06-10 Toto Ltd セラミックス部材の研磨装置及び研磨方法
JP2000094306A (ja) * 1998-09-29 2000-04-04 Toshio Miki 円筒体外径面の加工方法及び円筒体
JP2010017788A (ja) * 2008-07-09 2010-01-28 Ntn Corp 研削装置および研削方法

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Publication number Priority date Publication date Assignee Title
JPH09150353A (ja) * 1995-11-30 1997-06-10 Toto Ltd セラミックス部材の研磨装置及び研磨方法
JP2000094306A (ja) * 1998-09-29 2000-04-04 Toshio Miki 円筒体外径面の加工方法及び円筒体
JP2010017788A (ja) * 2008-07-09 2010-01-28 Ntn Corp 研削装置および研削方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115229599A (zh) * 2022-08-09 2022-10-25 首钢智新迁安电磁材料有限公司 一种磨削机和轧制生产线

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