CN210081463U - Roller rotary table for bearing grinding - Google Patents

Abstract

A roller revolving platform for grinding bearings comprises a bottom plate, a stand column, a fluted disc, an upper connecting disc, an upper gland, a first thrust bearing, an upper pressing plate, an upper main shaft, an upper pressing shaft, a first locking nut, a positioning pressing sleeve, a second thrust bearing, an upper gasket, an upper revolving disc, a second locking nut, a flat disc, a flange plate, a lower connecting disc, a third locking nut, a lower revolving disc, a lower gasket, a lower gland, a third thrust bearing, a positioning sleeve, a fourth thrust bearing, a fourth locking nut, a lower main shaft, a lower belt wheel, a motor support, a first motor, an upper belt wheel, a motor support and a second motor, wherein a self-positioning device with a buffer is used in the workpiece revolving platform, the conical rollers rotate through the second motor, the self-positioning device with a buffer on the first motor revolves around the central axis of the lower main shaft, so that the conical rollers to be ground can rotate and revolve, and finally, grinding the tapered roller by using a concave spherical molding grinding wheel.

Description

Roller rotary table for bearing grinding

Technical Field

The utility model belongs to the technical field of bearing grinding professional equipment, specifically speaking is a roller revolving platform for bearing grinding.

Background

A ball base surface grinding machine is adopted in a domestic grinding machine for grinding the ball base surface of the tapered roller, the tapered roller to be ground is positioned in the tooth groove of the isolation disc during grinding, the rotation speed of the left guide wheel disc is lower than that of the right guide wheel disc, the two guide wheel discs rotate in opposite directions and rotate at different speeds, the manufacturing precision of the working conical surfaces of the isolation disc and the left and right guide wheel discs is difficult to meet the design requirement, the extension line of the working surface of the isolation disc cannot accurately pass through the center of the isolation disc, namely the extension line of the excircle generatrix of the roller cannot pass through the center, and the end face circular runout deviation of the ground ball base surface of the tapered roller is large, the processing precision is low, and.

Disclosure of Invention

In order to solve the problem, the utility model discloses a roller revolving platform for bearing grinding, this roller revolving platform realize the grinding of tapered roller on ball basic plane grinding machine, the poor stability that easily produces when overcoming the tapered roller grinding, produce the axial float easily, the low scheduling problem of grinding precision, and then reduce the terminal surface circle of tapered roller ball basic plane and beat, improve grinding efficiency.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a roller revolving platform for bearing grinding, includes the bottom plate, the stand, the fluted disc, go up the adapter plate, go up the gland, first thrust bearing, the top board, go up the main shaft, go up the hold-down shaft, first lock nut, the location is pressed the cover, second thrust bearing, go up the packing ring, go up the carousel, second lock nut, the flat disc, the ring flange, lower ring adapter plate, third lock nut, lower carousel, lower packing ring, lower gland, third thrust bearing, the position sleeve, fourth thrust bearing, fourth lock nut, lower main shaft, lower belt pulley, motor support, first motor, go up the belt pulley, motor support and second motor, use the self-positioning device of area buffering in the work piece revolving platform, be provided with indent circular arc and the fluted shaft just the fluted shaft disposes the taper hole in the self-positioning device of area buffering, characterized by:

the bottom plate is connected and fixed on a lathe bed of the bearing ball base surface grinding machine through a plurality of bolts, the upright post is connected and fixed on the right side above the bottom plate through a plurality of bolts, the upper pressure plate is connected and fixed on the upper end surface of the upright post through a plurality of bolts, the positioning sleeve is connected and fixed on the left side above the bottom plate through a plurality of inner bolts, the fourth thrust bearing is connected and horizontally arranged at the upper end of a cylindrical table of the positioning sleeve, the lower pressure cover is connected on the outer edge of the upper end of the fourth thrust bearing, the maximum outer diameter of the lower pressure cover is equal to the outer diameter of the fourth thrust bearing, the upper end inner hole of the lower pressure cover is connected with the third thrust bearing, the outer diameter of the third thrust bearing is equal to the inner diameter of the upper end inner hole of the lower pressure cover, a special-shaped sealing ring is connected and arranged between the upper end surface of the third thrust bearing and the upper end surface of the fourth thrust bearing, the outer diameter of the lower section of the lower rotary disc is provided with a belt groove for connecting a plurality of lower belts;

the lower end stepped inner hole of the lower ring connecting disc is fixedly connected with the upper end stepped excircle of the lower rotary disc through a plurality of inner bolts, the lower main shaft is connected in a plurality of sets of bearing inner holes matched with the lower rotary disc, a second isolating sleeve is connected and matched between every two adjacent bearings, a lower gasket is connected and matched between each bearing and the lower pressing cover, the outer diameter of the upper end of the lower pressing cover and the outer diameter of the lower gasket are equal to the outer diameter of each bearing, the lower end of the lower main shaft is locked in the inner hole of the bottom plate through a fourth locking nut, and the upper end of the lower main shaft is locked on the end face of the inner ring of each bearing through a third locking nut;

the flange plate is fixedly connected with the upper end of the lower rotary disc through a plurality of inner screws, the flat disc is connected with the lower end of the upper rotary disc, and the outer diameter of the upper section of the upper rotary disc is provided with a plurality of belt grooves for connecting upper belts;

the upper connecting disc is connected and fixed on a boss at the outer edge of the lower section of the upper rotary disc through a plurality of inner screws, the fluted disc is connected and fixed at the lower end of the upper connecting disc through a plurality of inner screws, the self-positioning device with the buffer is connected outside an upper flange of the lower connecting disc through the concave arc, the fluted disc is meshed with the gear shaft with the self-positioning device with the buffer, the tapered roller is connected in the tapered hole with the self-positioning device with the buffer, and at the moment, the outer conical surface of the tapered roller is completely matched with the tapered hole;

the upper main shaft is connected in a plurality of sets of bearing inner holes matched with the upper rotary disc, the second isolating sleeve is also connected and assembled between the adjacent bearings, a second thrust bearing is connected to the middle section of the upper main shaft, the second thrust bearing is mutually contacted with the inner ring of the bearing at the upper end of the upper rotary disc, the outer ring of the bearing at the upper end of the upper rotary disc is connected with an upper gasket, the upper end of the upper gasket is connected with an upper gland, the upper gland is connected and fixed at the upper end of the upper rotary disc through a plurality of inner screws, the inner hole at the upper end of the upper gland is connected with a first thrust bearing, a positioning pressing sleeve is connected in the inner hole of the first thrust bearing, the upper end of the upper main shaft is locked with the positioning pressing sleeve through a first locking nut, and the second locking nut is used for locking;

an inner taper hole at the lower end of the upper main shaft is matched and connected with an outer conical surface at the upper end of the lower main shaft, and the upper pressing shaft is screwed in the internal thread of the upper pressing plate and is connected in the taper hole at the upper end of the upper main shaft through the lower conical surface of the upper pressing shaft;

the motor support is fixedly connected with the middle part of the right end of the upright post, the motor support is fixedly connected with the middle part of the left end of the upright post, the first motor is fixedly connected with the upper end of the motor support, the lower belt pulley is connected with the output shaft of the first motor, the lower belt is connected between the lower belt pulley and the lower rotary disc, the second motor is fixedly connected with the lower end of the motor support, the upper belt pulley is connected with the output shaft of the second motor, and the upper belt is connected between the upper belt pulley and the upper rotary disc.

Owing to adopt as above technical scheme, the utility model discloses produce following positive effect:

1. the utility model discloses in, the second motor → belt → last belt pulley → last gyration dish → fluted disc → the pinion → tapered roller carries out the rotation, and the first motor → lower belt pulley → take the buffering from the positioner around the central axis of main shaft carry out the revolution down, just so can make the tapered roller who treats the grinding implement rotation and revolution, and the shaping emery wheel of last rethread concave spherical surface implements the grinding to tapered roller, can effectively avoid tapered roller to produce the phenomenon of skidding when grinding man-hour.

2. The self-positioning device with the buffer is positioned and installed outside the upper flange of the lower ring joint disc by the arc structure below the self-positioning device, so that the tapered roller revolves around the axis of the lower rotary disc, and the axis of the tapered roller is ensured to pass through the axis of the rotary disc.

3. The tapered roller is arranged in the gear shaft taper hole with the buffering self-positioning device, and the outer conical surface of the tapered roller is completely matched with the gear shaft taper hole with the buffering self-positioning device, so that the automatic positioning of the tapered roller can be realized.

4. When the grinding force is too large when the spherical base surface of the tapered roller is ground, the self-positioning device with the buffer can counteract a part of cutting force, so that the grinding force is stable, the curvature variation and the end face circular run-out of the spherical base surface are reduced, and the grinding machining precision is improved.

Drawings

Fig. 1 is a schematic diagram of a partial sectional structure of the present invention.

Fig. 2 is a schematic diagram of the left side view of the structure of fig. 1.

In the above figures: 1-a bottom plate; 2-upright post; 3-a fluted disc; 4-upper connecting disc; 5, pressing a cover; 6-a first thrust bearing; 7-an upper pressing plate; 8-upper main shaft; 9-an upper pressing shaft; 10-a first locking nut; 11-positioning and pressing the sleeve; 12-a second thrust bearing; 13-an upper gasket; 14-upper turn plate; 15-a second lock nut; 16-a flat disc; 17-a tapered roller; 18-buffered self-positioning means; 19-a flange plate; 20-lower connecting disc; 21-a third lock nut; 22-lower turn plate; 23-a lower gasket; 24-lower gland; 25-a third thrust bearing; 26-a positioning sleeve; 27-a fourth thrust bearing; 28-a fourth lock nut; 29-lower main shaft; 30-lower belt; 31-lower pulley; 32-a motor support; 33-a first motor; 34-upper belt; 35-upper belt pulley; 36-a motor support; 37-second motor.

Detailed Description

The utility model relates to a roller revolving platform for bearing grinding, the utility model discloses a self-control roller revolving platform realizes the grinding of tapered roller on ball basic surface grinding machine.

With reference to fig. 1-2, the non-magnetic clamping workpiece revolving platform of the present invention includes a bottom plate 1, a column 2, a fluted disc 3, an upper connecting disc 4, an upper gland 5, a first thrust bearing 6, an upper pressing plate 7, an upper spindle 8, an upper pressing shaft 9, a first lock nut 10, a positioning pressing sleeve 11, a second thrust bearing 12, an upper washer 13, an upper revolving disc 14, a second lock nut 15, a flat disc 16, a flange 19, a lower connecting disc 20, a third lock nut 21, a lower revolving disc 22, a lower washer 23, a lower pressing cover 24, a third thrust bearing 25, a positioning sleeve 26, a fourth thrust bearing 27, a fourth lock nut 28, a lower spindle 29, a lower belt 30, a lower belt pulley 31, a motor support 32, a first motor 33, an upper belt 34, an upper belt pulley 35, a motor support 36, and a second motor 37, and related structural connection manners refer to the technical solution, which is not described in detail.

In the roller revolving platform constitutes, take buffering from positioner 18 to have made another case the invention simultaneously to claim, but take buffering from positioner 18 can realize the automatic positioning of the conical roller 17 external cone face, can realize again that conical roller 17 carries out rotation and revolution, this point is undoubted, and take buffering from being provided with indent circular arc and rachis just in being provided with the taper hole from positioner 18, the utility model discloses a roller revolving platform satisfies to take buffering from positioner 18 to realize rotation and revolution, but the utility model discloses only explain rather than the structure configuration who couples can.

The following points need to be noted:

1. when the roller revolving table works, the first motor 33 is driven, the lower belt pulley 31 is driven by the lower belt 30 to rotate the lower revolving disk 22, and the self-positioning device 18 with the buffer performs revolution around the central axis of the lower main shaft 29. The second motor 37 is driven and the upper belt pulley 35 is driven by the upper belt 34 to rotate the upper rotary disk 14, and the gear disc 3 drives the gear shaft to rotate the tapered roller 17.

2. The first motor 33, the lower belt 30 and the lower pulley 31 constitute the rotary arrangement of the lower turntable 22, while the second motor 37, the upper belt 34 and the upper pulley 35 constitute the rotary arrangement of the upper turntable 14.

3. When the second motor 37 is driven, the second motor 37 rotates via the belt 34 → the upper pulley 35 → the upper turn plate 14 → the upper cover 5 → the upper connecting plate 4, and the like, and the upper turn plate 14 → the toothed plate 3 → the pinion shaft rotates the tapered roller 17.

4. An inner taper hole at the lower end of the upper spindle 8 is matched and connected with an outer taper surface at the upper end of the lower spindle 29, the upper pressing shaft 9 is screwed in an inner thread of the upper pressing plate 7 and is connected in a taper hole at the upper end of the upper spindle 8 through a lower taper surface of the upper pressing shaft 9, so that the upper spindle 8 and the lower spindle 29 are effectively guaranteed to have the same central axis, the upper spindle 8 and the lower spindle 29 are static in the grinding process of the upper rotary disc 14 and the lower rotary disc 22, the phenomena of poor stability, easy axial movement and the like of a tapered roller can be overcome, the end face circular runout of a spherical base face of the tapered roller is reduced, and the grinding efficiency and the grinding precision.

5. The specification and size of the bolts and the inner bolts used in the present invention are determined according to different connection parts, which is obvious and known common knowledge for those skilled in the art, and even if the bolts are not explained in the connection fixing of some parts, it is indispensable.

6. When the first motor 33 is driven, the first motor 33 rotates via the lower belt 30 → the lower pulley 31 → the lower rotary disk 22 → the lower pressure cap 24 → the lower circling disk 20 → the flange 19, and the like, and the lower rotary disk 22 → the belt damper self-positioning device 18 revolves the conical rollers 17 around the central axis of the lower main shaft 29.

7. When the conical rollers 17 with different specifications and sizes are processed, the matched self-positioning device 18 with the buffer needs to be disassembled and replaced according to the size of the outer conical surface of the conical roller 17, the upper pressing shaft 9 is loosened to integrally disassemble parts such as the fluted disc 3, the upper rotary disc 14 and the like on the flat disc 16, and the self-positioning device 18 with the buffer can be replaced.

8. Although the roller turntable of the present invention has a complicated structure, other parts are movable except the parts fixed around the upper spindle 8 and the lower spindle 29.

Claims (1)

1. The utility model provides a roller revolving platform for bearing grinding, includes the bottom plate, the stand, the fluted disc, go up the adapter plate, go up the gland, first thrust bearing, the top board, go up the main shaft, go up the hold-down shaft, first lock nut, the location is pressed the cover, second thrust bearing, go up the packing ring, go up the carousel, second lock nut, the flat disc, the ring flange, lower ring adapter plate, third lock nut, lower carousel, lower packing ring, lower gland, third thrust bearing, the position sleeve, fourth thrust bearing, fourth lock nut, lower main shaft, lower belt pulley, motor support, first motor, go up the belt pulley, motor support and second motor, use the self-positioning device of area buffering in the work piece revolving platform, be provided with indent circular arc and the fluted shaft just the fluted shaft disposes the taper hole in the self-positioning device of area buffering, characterized by:

the bottom plate is connected and fixed on a lathe bed of the bearing ball base surface grinding machine through a plurality of bolts, the upright post is connected and fixed on the right side above the bottom plate through a plurality of bolts, the upper pressure plate is connected and fixed on the upper end surface of the upright post through a plurality of bolts, the positioning sleeve is connected and fixed on the left side above the bottom plate through a plurality of inner bolts, the fourth thrust bearing is connected and horizontally arranged at the upper end of a cylindrical table of the positioning sleeve, the lower pressure cover is connected on the outer edge of the upper end of the fourth thrust bearing, the maximum outer diameter of the lower pressure cover is equal to the outer diameter of the fourth thrust bearing, the upper end inner hole of the lower pressure cover is connected with the third thrust bearing, the outer diameter of the third thrust bearing is equal to the inner diameter of the upper end inner hole of the lower pressure cover, a special-shaped sealing ring is connected and arranged between the upper end surface of the third thrust bearing and the upper end surface of the fourth thrust bearing, the outer diameter of the lower section of the lower rotary disc is provided with a belt groove for connecting a plurality of lower belts;

the lower end stepped inner hole of the lower ring connecting disc is fixedly connected with the upper end stepped excircle of the lower rotary disc through a plurality of inner bolts, the lower main shaft is connected in a plurality of sets of bearing inner holes matched with the lower rotary disc, a second isolating sleeve is connected and matched between every two adjacent bearings, a lower gasket is connected and matched between each bearing and the lower pressing cover, the outer diameter of the upper end of the lower pressing cover and the outer diameter of the lower gasket are equal to the outer diameter of each bearing, the lower end of the lower main shaft is locked in the inner hole of the bottom plate through a fourth locking nut, and the upper end of the lower main shaft is locked on the end face of the inner ring of each bearing through a third locking nut;

the flange plate is fixedly connected with the upper end of the lower rotary disc through a plurality of inner screws, the flat disc is connected with the lower end of the upper rotary disc, and the outer diameter of the upper section of the upper rotary disc is provided with a plurality of belt grooves for connecting upper belts;

the upper connecting disc is connected and fixed on a boss at the outer edge of the lower section of the upper rotary disc through a plurality of inner screws, the fluted disc is connected and fixed at the lower end of the upper connecting disc through a plurality of inner screws, the self-positioning device with the buffer is connected outside an upper flange of the lower connecting disc through the concave arc, the fluted disc is meshed with the gear shaft with the self-positioning device with the buffer, the tapered roller is connected in the tapered hole with the self-positioning device with the buffer, and at the moment, the outer conical surface of the tapered roller is completely matched with the tapered hole;

the upper main shaft is connected in a plurality of sets of bearing inner holes matched with the upper rotary disc, the second isolating sleeve is also connected and assembled between the adjacent bearings, a second thrust bearing is connected to the middle section of the upper main shaft, the second thrust bearing is mutually contacted with the inner ring of the bearing at the upper end of the upper rotary disc, the outer ring of the bearing at the upper end of the upper rotary disc is connected with an upper gasket, the upper end of the upper gasket is connected with an upper gland, the upper gland is connected and fixed at the upper end of the upper rotary disc through a plurality of inner screws, the inner hole at the upper end of the upper gland is connected with a first thrust bearing, a positioning pressing sleeve is connected in the inner hole of the first thrust bearing, the upper end of the upper main shaft is locked with the positioning pressing sleeve through a first locking nut, and the second locking nut is used for locking;

an inner taper hole at the lower end of the upper main shaft is matched and connected with an outer conical surface at the upper end of the lower main shaft, and the upper pressing shaft is screwed in the internal thread of the upper pressing plate and is connected in the taper hole at the upper end of the upper main shaft through the lower conical surface of the upper pressing shaft;

the motor support is fixedly connected with the middle part of the right end of the upright post, the motor support is fixedly connected with the middle part of the left end of the upright post, the first motor is fixedly connected with the upper end of the motor support, the lower belt pulley is connected with the output shaft of the first motor, the lower belt is connected between the lower belt pulley and the lower rotary disc, the second motor is fixedly connected with the lower end of the motor support, the upper belt pulley is connected with the output shaft of the second motor, and the upper belt is connected between the upper belt pulley and the upper rotary disc.

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