CN201249392Y

CN201249392Y - Plunge type ball bearing groove super-finishing machine

Info

Publication number: CN201249392Y
Application number: CNU2008200551536U
Authority: CN
Inventors: 徐秉绶
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-28
Filing date: 2008-01-28
Publication date: 2009-06-03
Anticipated expiration: 2018-01-28

Abstract

A plunger type ball bearing groove super-finishing machine comprises a lathe bed, one end of the lathe bed is equipped with a work head carriage and a work head case, the other end of the lathe bed is equipped with a horizontal revolving platform, a swinging head carriage, a swinging head arm, an oilstone feed device, an oilstone retainer and an integral oilstone, wherein position of the work head carriage longitudinally arranged at one end of the lathe bed can be adjusted by a carriage adjusting screw, height of the work head case which is mounted on the work head carriage and comprises a work piece shaft can be finely adjusted by a central adjusting screw, the horizontal revolving platform longitudinally arranged at the other end of the lathe bed uses a revolving pin below the work piece axis as a center to revolve, revolving angles of the horizontal revolving platform can be adjusted by an angle adjusting screw, the swinging head carriage which is longitudinally arranged on the revolving platform and can be driven by a reciprocating cylinder and positioned via a position adjusting screw comprises a swinging head shaft, the swinging head arm is arranged on the swinging head shaft, the oilstone feed device which is mounted on the swinging head arm and can be adjusted up and down comprises a feed cylinder and a feed ball rail, the oilstone retainer which is mounted on the oilstone feed device can horizontally adjust revolving angle of the oilstone, and the integral oilstone mounted on the oilstone retainer can be rapidly replaced.

Description

The cut-in type ball bearing channel ultra-lapping machine

▲ affiliated technical field:

The utility model relates to a kind of ball bearing channel ultra-lapping processing equipment, is specifically related to a kind of ball bearing channel ultra-lapping machine that adopts the super lappingout processing technology of cut-in type.

▲ background of related:

Increasing the oilstone width for the ball bearing channel ultra-lapping machine is an important indicator, one, the influence that bearing is vibrated when the preceding working procedure grinding, on the circumference of raceway groove, form the low order corrugated surface, and enough wide oilstone can stride across several low order ripples, helps eliminating the low order ripple and improves circularity; Its two, oilstone has been widened the grinding normal pressure and also can have been strengthened, production efficiency just obtains improving.

Traditional ball bearing channel ultra-lapping machine is to adopt oilstone to make the lapping mode of oscillating motion by the groove curvature center of workpiece, and the axis of oscillation of this super lapping machine oilstone is in the vertical direction of workpiece rotation, tangent with the groove curvature centrode; There are 2 weak points in this super lapping machine: one, the oilstone width that uses in the processing can not be too wide, reason is that the radius that waves that waves in the middle of radius and the oilstone that is positioned at oilstone two ends is different, if the too wide this radius difference of oilstone and then strengthens, this will destroy machining accuracy.Because of there being two groove curvature centers, institute is so that the raising of processed complex cost when two, processing four-point contact ball.

▲ summary of the invention:

In order to overcome the deficiency of traditional ball bearing channel ultra-lapping machine, the utility model provides a kind of cut-in type ball bearing channel ultra-lapping machine different with traditional approach, the axis of oscillation of oilstone is the coaxial direction at the workpiece rotation, oilstone is along the raceway groove circle swing, therefore can increase considerably the oilstone width and grind normal pressure, effectively eliminate the low subwave in the raceway groove circularity, improve crudy and production efficiency; Because of adopting the cut-in type processing technology, be not subjected to the restriction at two groove curvature centers simultaneously, just can process four-point contact ball with identical technology.

The technical solution adopted in the utility model is: a kind of cut-in type ball bearing channel ultra-lapping machine, what comprise lathe bed and be located at that lathe bed one end vertically arranges can and be installed in the workpiece head case that includes workpiece spindle that can be regulated height by center adjustment screw rod trace on the workpiece head planker by the workpiece head planker of planker adjusting screw ( rod ) adjusting position.。

Described workpiece head case is equipped with two roller hold down gags and is not in the mood for support foot piece-holder is not in the mood for rotation on workpiece spindle, workpiece spindle passes through flute profile belt and belt pulley transmission by the workpiece variable-frequency motor, the workpiece variable-frequency motor makes the workpiece spindle rotating speed between 500～3000 rev/mins by frequency converter stepless speed regulation; Workpiece spindle axis and fulcrum post axis intersect.Described planker adjusting screw(rod) can be regulated workpiece head planker lengthwise position, makes workpiece groove curvature centrode plane of living in overlap (two groove curvature centrode planes of living in are at fulcrum post axis two limits symmetry place during the processing four-point contact ball) with the fulcrum post axis.Described center adjustment screw rod is positioned at workpiece head case one side, the opposite side of correspondence be provided with can make workpiece head case as the center rotating swing hinge up and down; Regulate the center adjustment screw rod and can regulate workpiece head case height by trace, the center of circle that makes workpiece is a little more than the yaw axis, and its adjusting range is 0.0～2.0% diameter of work.The angle of revolution of the flat revolving dial of the adjustable water saving of described angular adjustment screw rod makes the position relative workpiece spindle axis of yaw axis thereon form one 1.0 °～5.0 ° angle of revolution in the horizontal direction.Described location adjusting screw(rod) can position the yaw planker enters the workspace under reciprocating oil cylinder drives position, and oilstone is thereon just overlapped with the workpiece raceway groove.The axis of described yaw axle and fulcrum post axis intersect, one of the yaw axle is equipped with adjustable crankshaft-link rod device, drive by the yaw variable-frequency motor, regulating crankshaft-link rod can make yaw at ± 0 °～30 ° angle swinging, the yaw variable-frequency motor makes hunting frequency between 60～300 times/minute by frequency converter stepless speed regulation.Described yaw arm is installed in the other end of yaw axle.Described oilstone feeding device can be done to move by a relatively large margin on the yaw arm, to adapt to the needs of inside and outside circle of processing or different-diameter workpiece; Oilstone feeding device the feeding spherical guide by feeding cylinder band and is realized feed motion downwards, and the pressure of feeding cylinder is by the pneumatic servo valve regulation, makes grinding normal pressure on the oilstone cross section at 0.2～5Kg/cm ²Between.Described oilstone clamper includes clamper body and camber finger plate, the clamper body is installed on the feeding spherical guide of oilstone feeding device, the camber finger plate is embedded in the arc shaped groove of clamper body and makes horizontal rotation along arc shaped groove, and its centre of gyration line and yaw axis are crossing; The oilstone plane forms an oilstone angle with the yaw axis after the finger plate revolution, and the angle of revolution that the relative workpiece spindle axis with the yaw axis of this oilstone angle forms is surplus mutually.Described integrated oilstone head is cohered on par by oilstone and forms; The oilstone size is corresponding with the workpiece of being processed, and its thickness equals the workpiece channel width, and its width can be chosen 1/3～1/2 of diameter of work according to the processing needs, and its length enters the workspace and is as the criterion not influence oilstone; Installation portion on the par is a standardized head that is complementary with the oilstone clamper, be convenient to change fast integrated oilstone head, the length of par is after oilstone coheres the physical centre of oilstone cross section to be overlapped with the centre of gyration of oilstone clamper.

The beneficial effects of the utility model are: 1, can increase considerably the oilstone width man-hour and grind normal pressure in that ball bearing channel ultra-lapping is added, effectively eliminate the low subwave in the raceway groove circularity, improve crudy and production efficiency; 2, identical technology just can be processed four-point contact ball, simplifies procedure and reduces cost.

▲ description of drawings:

Fig. 1 is the front view (shown in be processing during inner ring state) of cut-in type ball bearing channel ultra-lapping machine.

Fig. 2 is the A-A cutaway view of workpiece head case.

Fig. 3 is the B-B cutaway view of revolving dial.

The partial enlarged drawing of yaw part when Fig. 4 is the processing outer ring.

Fig. 5 is that the C of oilstone clamper and integrated oilstone head is to view.

Among the figure: 1, lathe bed, 2, workpiece head planker, 3, the planker adjusting screw(rod), 4, workpiece head case, 5, belt pulley, 6, the flute profile belt, 7～8, the center adjustment screw rod, 9, the workpiece variable-frequency motor, 10, workpiece spindle, 11, be not in the mood for support foot, 12, workpiece, 13, integrated oilstone head, 14, oilstone feeding device, 15, the oilstone clamper, 16, two roller hold down gags, 17, the location adjusting screw(rod), 18, the yaw variable-frequency motor, 19, the yaw arm, 20, the crankshaft-link rod device, 21, the yaw axle, 22, the angular adjustment screw rod, 23, reciprocating oil cylinder, 24, the yaw planker, 25, the horizontal rotation platform, 26, the revolution bearing pin, 27, swing hinge, 28, angle scale, 29, the clamper body, 30, the camber finger plate, 31, the feeding spherical guide, 32, the feeding cylinder, 33, trip bolt, 34, long rabbet, 35, oilstone, 101, the fulcrum post axis, 102, the workpiece spindle axis, 103, oilstone clamper centre of gyration line, 104, groove curvature centrode plane of living in, 105, the yaw axis, 106, the angle of revolution, 107, the oilstone angle, 108, the physical centre of oilstone cross section.

▲ the specific embodiment:

Referring to accompanying drawing, cut-in type ball bearing channel ultra-lapping machine of the present utility model comprises lathe bed 1 and is located at workpiece head planker 2 that lathe bed one end vertically arranges, workpiece head case 4, planker adjusting screw(rod) 3, center adjustment screw rod 7 and 8 and workpiece spindle 10.Be located at horizontal rotation platform 25, revolution bearing pin 26, angular adjustment screw rod 22, yaw planker 24, reciprocating oil cylinder 23, location adjusting screw(rod) 17, yaw axle 21, yaw arm 19, oilstone feeding device 14, oilstone clamper 15 and integrated oilstone head 13 that the lathe bed other end is vertically arranged.

Workpiece head case 4 is equipped with two roller hold down gags 16 and is not in the mood for support foot 11 and workpiece 12 is clamped in is not in the mood on the workpiece spindle 10 rotating, workpiece spindle 10 passes through flute profile belt 6 and belt pulley 5 transmissions by workpiece variable-frequency motor 9, workpiece spindle axis 102 intersects with fulcrum post axis 101, workpiece variable-frequency motor 9 makes the workpiece spindle rotating speed between 500～3000 rev/mins by frequency converter stepless speed regulation.Planker adjusting screw(rod) 3 can be regulated the lengthwise position of workpiece head planker 2, the groove curvature centrode plane 104 of living in of workpiece 12 is overlapped (two groove curvature centrode planes of living in are at fulcrum post axis two limits symmetry place during the processing four-point contact ball) with fulcrum post axis 101.Center adjustment screw rod 7 and 8 is positioned at a side of workpiece head case 4, opposite side in correspondence is provided with swing hinge 27, center adjustment screw rod 7 and 8 cooperatively interacts and can micro-ly regulate the height of workpiece head case 4, the center of circle that makes workpiece 12 is a little more than yaw axis 105, and its adjusting range is 0.0～2.0% diameter of work.The cooperatively interact angle of revolution of the flat revolving dial 25 of adjustable water saving of two angular adjustment screw rods 22, make position yaw axis 105 relative workpiece spindle axis 102 thereon form one 1.0 °～5.0 ° angle of revolution 106 in the horizontal direction, angle of revolution 106 is shown by the angle scale 28 that is arranged on revolving dial 25 afterbodys.Yaw planker 24 is positioned its position by location adjusting screw(rod) 17 after entering the workspace by reciprocating oil cylinder 23 drives, oilstone 35 is thereon just dropped in the raceway groove of workpiece 12, and its localization criteria is that oilstone clamper centre of gyration line 103 overlaps with fulcrum post axis 101 when yaw arm 19 is in vertical position.Yaw axis 105 intersects with fulcrum post axis 101; One of yaw axle 21 is equipped with adjustable crankshaft-link rod device 20, and crankshaft-link rod device 20 is driven by yaw variable-frequency motor 18, regulates crankshaft-link rod and can make yaw at ± 0 °～30 ° angle swinging; Yaw variable-frequency motor 18 makes hunting frequency between 60～300 times/minute by frequency converter stepless speed regulation.Yaw arm 19 is installed in the other end of yaw axle 21.Oilstone feeding device 14 is installed on the yaw arm 19 and can does thereon and moves by a relatively large margin, to adapt to the needs of inside and outside circle of processing or different-diameter workpiece; Oilstone feeding device 14 is being with feeding spherical guide 31 to realize feed motion downwards by feeding cylinder 32.Oilstone clamper 15 includes clamper body 29 and camber finger plate 30, clamper body 29 is installed on the spherical guide 31, camber finger plate 30 is embedded in the arc shaped groove of clamper body 29 and makes horizontal rotation along arc shaped groove, its centre of gyration line 103 intersects with yaw axis 105, the plane of oilstone 35 forms an oilstone angle 107 with yaw axis 105 after finger plate 30 revolutions, oilstone angle 107 is surplus mutually with angle of revolution 106.Integrated oilstone head 13 is cohered on par 36 by oilstone 35 and forms; The installation portion 37 of par 36 is standardized heads, has long rabbet 34 above; Groove with installation portion 37 same sizes is arranged on camber finger plate 30, two trip bolts 33 are arranged on it, installation portion 37 just is fastened in the groove by trip bolt 33, just can be convenient for changing integrated oilstone head 13 as long as unclamp trip bolt 33; The length of par 36 is after oilstone 35 coheres the physical centre 108 of oilstone cross section to be overlapped with the centre of gyration 103 of oilstone clamper.

Cut-in type ball bearing channel ultra-lapping machine running program of the present utility model is as follows: two roller hold down gags rotate piece-holder on workpiece spindle after workpiece is sent into station by automatic charging device, reciprocating oil cylinder drives the yaw planker makes oilstone enter the workspace, oilstone feeding device is pressed to raceway groove with oilstone and is ground under the waving of yaw, grind and divide thick surpassing, essence surpasses two time-delay stages, thick overtime yaw frequency height, workpiece rotational frequency is low, oilstone pressure is big, smart overtime yaw frequency reduces, workpiece rotational frequency raises, oilstone pressure reduces, the all stepless variations under the control of frequency converter and servo valve of these parameters, thick super, oilstone feeding device withdrawed from after essence surpassed two time-delay stages end, reciprocating oil cylinder drives the yaw planker and withdraws from, and workpiece blanking circulation finishes.

Claims

1, a kind of cut-in type ball bearing channel ultra-lapping machine; It is characterized in that: what comprise lathe bed and be located at that lathe bed one end vertically arranges can and be installed in the workpiece head case that includes workpiece spindle that can be regulated by center adjustment screw rod trace height on the workpiece head planker by the workpiece head planker of planker adjusting screw(rod) adjusting position, but but is located at revolution centered by the revolution bearing pin that is positioned at the axis of workpiece below that the lathe bed other end vertically arranges and is regulated the horizontal rotation platform of angle of revolution and be installed in can being driven and by the yaw planker that includes the yaw axle of adjusting screw(rod) location, location be installed in the yaw arm on the yaw axle and be installed in the oilstone feeding device that includes feeding cylinder and feeding spherical guide of the up-down adjustment position on the yaw arm and be installed in the oilstone clamp of the Level tune oilstone angle of revolution on the oilstone feeding device and be installed in the integrated oil stone of the fast changeable on the oilstone clamp by reciprocating oil cylinder of vertically arranging on the revolving dial by the angular adjustment screw rod.

2, cut-in type ball bearing channel ultra-lapping machine according to claim 1 is characterized in that: described workpiece head case is equipped with two roller hold down gags and is not in the mood for support foot, and workpiece spindle axis and fulcrum post axis intersect.

3, cut-in type ball bearing channel ultra-lapping machine according to claim 1, it is characterized in that: described center adjustment screw rod is positioned at workpiece head case one side, the opposite side of correspondence be provided with can make workpiece head case as the center rotating swing hinge up and down, regulate the center adjustment screw rod and can regulate workpiece head case height by trace, the center of circle that makes workpiece is a little more than the yaw axis, and its adjusting range is 0.0～2.0% diameter of work.

4, cut-in type ball bearing channel ultra-lapping machine according to claim 1, it is characterized in that: the axis of described yaw axle and fulcrum post axis intersect, one of the yaw axle is equipped with adjustable crankshaft-link rod device, regulates crankshaft-link rod and can make yaw at ± 0 °～30 ° angle swinging.

5, cut-in type ball bearing channel ultra-lapping machine according to claim 1, it is characterized in that: described oilstone clamper includes clamper body and camber finger plate, the clamper body is installed on the spherical guide of oilstone feeding device, the camber finger plate is embedded in the arc shaped groove of clamper body and makes horizontal rotation along arc shaped groove, its centre of gyration line and yaw axis intersect, the oilstone plane forms an oilstone angle with the yaw axis after the finger plate revolution, and the angle that the relative workpiece spindle axis with the yaw axis of this oilstone angle forms is surplus mutually.

6, cut-in type ball bearing channel ultra-lapping machine according to claim 1 is characterized in that: described integrated oilstone head is cohered on par by oilstone and forms; The oilstone size is corresponding with the workpiece of being processed, and its thickness equals the workpiece channel width, and its width can be chosen 1/3～1/2 of diameter of work according to the processing needs, and its length enters the workspace and is as the criterion not influence oilstone; Installation portion on the par is a standardized head that is complementary with the oilstone clamper, is convenient to change fast integrated oilstone head; The length of par is after oilstone coheres the physical centre of oilstone cross section to be overlapped with the centre of gyration of oilstone clamper.