CN108406535B - Automatic grinding machine for central shaft of multi-station rotary joint - Google Patents
Automatic grinding machine for central shaft of multi-station rotary joint Download PDFInfo
- Publication number
- CN108406535B CN108406535B CN201810122568.9A CN201810122568A CN108406535B CN 108406535 B CN108406535 B CN 108406535B CN 201810122568 A CN201810122568 A CN 201810122568A CN 108406535 B CN108406535 B CN 108406535B
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- Prior art keywords
- shaft
- grinding
- chuck
- seat
- bearing
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- 238000001125 extrusion Methods 0.000 claims abstract description 43
- 239000012530 fluid Substances 0.000 claims description 49
- 238000005086 pumping Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 230000009365 direct transmission Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 description 15
- 244000309464 bull Species 0.000 description 9
- 239000000314 lubricant Substances 0.000 description 8
- 238000010992 reflux Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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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
- B24B27/00—Other grinding machines or devices
- B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
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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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/10—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping
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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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
- B24B37/30—Work carriers for single side lapping of plane surfaces
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—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
- 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
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses an automatic grinding machine for a central shaft of a multi-station rotary joint, which comprises a lower frame, a chuck device, a grinding seat, a chuck rotary driving device, an upper frame and an extrusion positioning device, wherein the chuck device is arranged on the lower frame in a distributed manner; during operation, a plurality of rotary joint central shafts to be processed are placed on each grinding seat, the extrusion positioning device extrudes and positions the rotary joint central shafts on the grinding seats from the upper ends of the rotary joint central shafts, then the chuck rotary driving device drives the chuck device to drive the grinding seats to rotate, and the front end faces of the convex rings are ground through grinding contact faces of the grinding seats.
Description
Technical Field
The invention belongs to the technical field of production and processing of central shafts of rotary joints, and particularly relates to an automatic grinding machine for grinding the front end face of a convex ring on the central shaft of the rotary joint.
Background
The rotary joint is a transitional connection sealing device for inputting fluid medium from a static pipeline to a dynamic rotary machine part, the rotary joint shown in figure 1 comprises a shell and a hollow rotary center shaft 100, a convex ring 200 integrally formed with the rotary center shaft 100 is arranged in the middle of the rotary center shaft 100, the front end surface 300 of the convex ring 200 is formed into a spherical surface and is tightly contacted with the rear end surface of a sealing ring 400, the rotary center shaft 100 is the rotary joint center shaft related to the invention, the front end surface 300 of the convex ring 200 of the rotary center shaft 100 is formed by turning and then polishing the front end surface 300 one by one, and as no special equipment for polishing the front end surface 300 is available, the single piece polishes the front end surface 300 of the convex ring 200 of the rotary center shaft 100 one by one, the processing efficiency is low, the surface roughness of the processed front end surface 300 is high, and the surface precision of the front end surface 300 is low. Therefore, in order to improve the production efficiency, improve the surface accuracy of the front end surface of the convex ring of the central shaft of the rotary joint, and reduce the surface roughness of the front end surface of the convex ring, it is necessary to design and develop a special device for polishing the front end surface of the convex ring of the central shaft of the rotary joint.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the automatic grinding machine for the central shaft of the multi-station rotary joint, which has high production and processing efficiency, high surface precision of the front end surface of the processed convex ring and is specially used for grinding the front end surface of the convex ring of the central shaft of the rotary joint.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a multistation rotary joint center pin automatic grinding machine, includes frame, chuck device, grinds seat, chuck rotary driving device, goes up frame and extrusion positioner down, chuck device distributes and installs in the frame down, grinds the seat and installs fixedly on chuck device, and chuck rotary driving device installs and fix in the frame down and be connected the drive chuck device rotation with chuck device transmission, goes up the fixed top that sets up in the frame down of frame, and extrusion positioner distributes and installs in last frame and extrusion positioner and chuck device one-to-one setting in the top of chuck device.
Further, the chuck device comprises a driven pulley, a belt pulley shaft, a bearing spacer bush, a first wheel bearing, a second wheel bearing, a wheel bearing seat, a bearing pressing plate and a chuck seat, wherein the driven pulley is installed and fixed at the lower end of the belt pulley shaft, the bearing spacer bush is sleeved on the shaft body of the belt pulley shaft, the first wheel bearing and the second wheel bearing are respectively installed on the shaft body of the belt pulley shaft and positioned at two sides of the bearing spacer bush, the wheel bearing seat is arranged on the outer sides of the first wheel bearing and the second wheel bearing, the first wheel bearing and the second wheel bearing are installed in the wheel bearing seat and are fixed in a positioning mode through the bearing pressing plate, the wheel bearing seat is installed and fixed on a lower frame, the chuck seat is installed and fixed at the upper end of the belt pulley shaft, the driven pulley is in transmission connection with the chuck rotary driving device, and the grinding seat is installed and fixed on the chuck seat.
Further, the chuck rotation driving device comprises a driving motor, a driving belt pulley and a driving belt, wherein the driving motor is fixedly arranged on the lower frame, the driving belt pulley is fixedly arranged on a motor shaft of the driving motor, driven belt pulleys of the chuck device are sequentially in transmission connection through the driving belt, no direct transmission connection exists between the driven belt pulley at the head end and the driven belt pulley at the tail end, and the driving belt pulley is in transmission connection with the driven belt pulley at the head end through the driving belt.
Further, the outside of driving belt is provided with tensioning belt pulley, tensioning belt pulley adjustably mounted on tensioning wheel installation arm, and tensioning wheel installation arm installs and fixes on the frame connecting seat, and the frame connecting seat is installed and is fixed in lower frame.
Further, tensioning belt pulley includes tensioning shaft, tensioning shaft bearing, tensioning wheel body, retaining ring, flat washer, spring washer and lock nut, tensioning shaft's one end is installed on tensioning wheel installation arm, tensioning shaft bearing suit is on tensioning shaft's axle body, tensioning wheel body suit is in tensioning shaft bearing's outside, the retaining ring is installed and is fixed a position tensioning shaft bearing's outer fringe on tensioning wheel body's inner wall, flat washer is installed and is fixed a position tensioning shaft bearing's inner edge on tensioning shaft's axle body, the spring washer is installed and is located flat washer's outside on tensioning shaft's axle body, lock nut threaded connection carries out fastening location to the spring washer on tensioning shaft's the other end.
Further, the grinding seat comprises a chuck connecting end, a workpiece supporting seat, a convex ring positioning cavity and a grinding contact surface, wherein the chuck connecting end is formed at the lower end of the workpiece supporting seat, the convex ring positioning cavity is formed at the upper end of the workpiece supporting seat, the grinding contact surface is formed in the convex ring positioning cavity, the chuck connecting end of the grinding seat is installed and fixed on a chuck seat of the chuck device, and the workpiece supporting seat is arranged above the chuck seat.
Further, extrusion positioner includes extrusion cylinder, the cylinder connecting plate, the end bull stick, the spool apron, extrusion spool and slip sleeve, the cylinder body of extrusion cylinder is installed on the cylinder connecting plate, the cylinder connecting plate is installed and is fixed in last frame, the piston rod of extrusion cylinder extends towards the below of frame up, the piston head of piston rod passes through spool apron fixed connection at the upper end of extrusion spool, the end bull stick sets up on the both sides of piston head, the both sides of extrusion spool correspond the end bull stick shaping and are provided with end bull stick extension groove, the spool cover suit is in the outside of extrusion spool and install and fix in the below of last frame, the both sides of slip sleeve correspond the end bull stick shaping and are provided with end bull stick extension groove, end bull stick passes end bull stick extension groove and extends into in the end bull stick extension groove.
Further, the grinding contact surface is distributed and formed with grinding fluid drainage grooves, the workpiece support seat is communicated with the convex ring positioning cavity and is formed with a pipe connecting hole, a grinding fluid pumping main pipe of the grinding fluid pumping device extends from the lower side of the lower frame, the grinding fluid pumping main pipe is connected with a grinding fluid pumping branch pipe, a liquid outlet pipe orifice of the grinding fluid pumping branch pipe extends to the upper side of the convex ring positioning cavity, one end of a grinding fluid reflux main pipe of the grinding fluid pumping device is connected with a grinding fluid tank, the other end of the grinding fluid reflux main pipe is connected with a grinding fluid reflux branch pipe, the grinding fluid reflux branch pipe is connected to the pipe connecting hole, the grinding fluid pumping main pipe is connected to a grinding fluid pump, and the grinding fluid pump is arranged in the grinding fluid tank.
Further, a motor protection cover is arranged on the periphery of a driving motor of the chuck rotation driving device, and the motor protection cover is arranged between the lower frame and the upper frame.
Further, the grinding contact surface is a spherical surface or a plane matched with the front end surface of the convex ring of the rotating center shaft.
The invention has the following beneficial effects:
the invention relates to an automatic grinding machine for a central shaft of a multi-station rotary joint, which is characterized in that a plurality of central shafts of the rotary joint to be processed are placed on each grinding seat in operation, a convex ring of the central shaft of the rotary joint is positioned in a convex ring positioning cavity of the grinding seat, the front end surface of the convex ring is in matched contact with a grinding contact surface of the grinding seat, an extrusion positioning device extrudes and positions the central shaft of the rotary joint on the grinding seat from the upper end of the central shaft of the rotary joint, then a chuck rotary driving device drives a chuck device to drive the grinding seat to rotate, the front end surfaces of the convex rings are ground through the grinding contact surface of the grinding seat, the multi-station simultaneous grinding processing of the front end surfaces of the convex rings of the central shafts of the rotary joint can be realized, and meanwhile, the travel of the extrusion positioning device is controlled, so that the automatic grinding machine is applicable to the processing of the central shafts of the rotary joints with different lengths; the grinding contact surface of the grinding seat can be formed into a spherical surface or a plane matched with the front end surface of the convex ring of the rotating center shaft according to the requirement; in addition, during grinding, the grinding seat can be added with grinding lubricant through the grinding lubricant pumping device, and the grinding lubricant can be recycled, so that the grinding quality is improved, and the utilization rate of the grinding lubricant is high; the polishing device has the characteristics of being capable of polishing the front end surfaces of the convex rings of the plurality of rotary joint central shafts at multiple stations simultaneously, high in polishing efficiency, high in surface precision of the front end surfaces of the processed convex rings, and capable of being specially used for polishing the front end surfaces of the convex rings of the rotary joint central shafts.
Drawings
FIG. 1 is a schematic view of a central shaft structure of a rotary joint to be processed by an automatic grinding machine for central shafts of multi-station rotary joints;
FIG. 2 is a schematic perspective view of an automatic central shaft grinder for multi-station rotary joints according to the present invention;
FIG. 3 is a schematic side view of a central shaft automatic grinding machine for multi-station rotary joints according to the present invention;
FIG. 4 is a schematic view of a chuck device of an automatic grinding machine for a central shaft of a multi-station rotary joint according to the present invention;
FIG. 5 is a schematic view of the grinding base of the automatic grinding machine for the central shaft of the multi-station rotary joint according to the present invention;
FIG. 6 is a schematic structural view of a chuck rotation driving device of an automatic grinding machine for a central shaft of a multi-station rotary joint according to the present invention;
FIG. 7 is a schematic view of the tensioning pulley of the automatic center shaft grinder for multi-station rotary joints according to the present invention;
FIG. 8 is a schematic perspective view of an extrusion positioning device of an automatic grinding machine for a central shaft of a multi-station rotary joint;
FIG. 9 is a cross-sectional view of the extrusion positioning device of the automatic grinding machine for the central shaft of the multi-station rotary joint;
fig. 10 is a schematic diagram showing a connection relationship between a polishing liquid pumping device and a polishing seat of an automatic polishing machine with a central shaft of a multi-station rotary joint according to the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical ideas claimed in the present invention.
The invention relates to an automatic grinding machine for a central shaft of a multi-station rotary joint, which is shown in fig. 2-10, and comprises a lower frame 1, a chuck device 2, a grinding seat 20, a chuck rotary driving device 3, an upper frame 4 and an extrusion positioning device 5, wherein the chuck device 2 is arranged on the lower frame 1 in a distributed manner, the grinding seat 20 is fixedly arranged on the chuck device 2, the chuck rotary driving device 3 is fixedly arranged on the lower frame 1 and is in transmission connection with the chuck device 2 to drive the chuck device 2 to rotate, the upper frame 4 is fixedly arranged above the lower frame 1, the extrusion positioning device 5 is arranged on the upper frame 4 in a distributed manner, and the extrusion positioning device 5 and the chuck device 2 are arranged above the chuck device 2 in a one-to-one correspondence manner.
The chuck device 2 comprises a driven pulley 21, a pulley shaft 22, a bearing spacer 23, a first wheel bearing 23a, a second wheel bearing 23b, a wheel bearing seat 24, a bearing pressing plate 25 and a chuck seat 26, wherein the driven pulley 21 is fixedly arranged at the lower end of the pulley shaft 22, the bearing spacer 23 is sleeved on the shaft body of the pulley shaft 22, the first wheel bearing 23a and the second wheel bearing 23b are respectively arranged on the shaft body of the pulley shaft 22 and positioned at two sides of the bearing spacer 23, the wheel bearing seat 24 is arranged on the outer sides of the first wheel bearing 23a and the second wheel bearing 23b, the first wheel bearing 23a and the second wheel bearing 23b are arranged in the wheel bearing seat 24 and are fixedly positioned by the bearing pressing plate 25, the wheel bearing seat 24 is fixedly arranged on the lower frame 1, the chuck seat 26 is fixedly arranged at the upper end of the pulley shaft 22, the driven pulley 21 is in transmission connection with the chuck rotary driving device 3, and the grinding seat 20 is fixedly arranged on the chuck seat 26.
The chuck rotation driving device 3 comprises a driving motor 31, a driving belt pulley 32 and a driving belt 33, wherein the driving motor 31 is fixedly arranged on the lower frame 1, the driving belt pulley 32 is fixedly arranged on a motor shaft of the driving motor 31, the driven belt pulleys 21 of the chuck device 2 are sequentially in transmission connection through the driving belt 33, no direct transmission connection exists between the driven belt pulley 21 at the head end and the driven belt pulley 21 at the tail end, and the driving belt pulley 32 is in transmission connection with the driven belt pulley 21 at the head end through the driving belt 33.
The outside of the driving belt 33 is provided with a tensioning pulley 36, the tensioning pulley 36 is adjustably mounted on a tensioning wheel mounting arm 35, the tensioning wheel mounting arm 35 is mounted and fixed on a frame connecting seat 34, and the frame connecting seat 34 is mounted and fixed on the lower frame 1.
The tensioning pulley 36 specifically comprises a tensioning wheel shaft 36a, a tensioning wheel shaft bearing 36b, a tensioning wheel body 36c, a retainer ring 36d, a flat washer 36e, a spring washer 36f and a locking nut 36g, wherein one end of the tensioning wheel shaft 36a is arranged on the tensioning wheel mounting arm 35, the tensioning wheel shaft bearing 36b is sleeved on the shaft body of the tensioning wheel shaft 36a, the tensioning wheel body 36c is sleeved on the outer side of the tensioning wheel shaft bearing 36b, the retainer ring 36d is arranged on the inner wall of the tensioning wheel body 36c to position the outer edge of the tensioning wheel shaft bearing 36b, the flat washer 36e is arranged on the shaft body of the tensioning wheel shaft 36a to position the inner edge of the tensioning wheel shaft bearing 36b, the spring washer 36f is arranged on the shaft body of the tensioning wheel shaft 36a and is arranged on the outer side of the flat washer 36e, and the locking nut 36g is in threaded connection with the other end of the tensioning wheel shaft 36a to fasten and position the spring washer 36 f.
The grinding seat 20 specifically comprises a chuck connecting end 20a, a workpiece supporting seat 20b, a convex ring positioning cavity 20c and a grinding contact surface 20d, wherein the chuck connecting end 20a is formed at the lower end of the workpiece supporting seat 20b, the convex ring positioning cavity 20c is formed at the upper end of the workpiece supporting seat 20b, the grinding contact surface 20d is formed in the convex ring positioning cavity 20c, the chuck connecting end 20a of the grinding seat 20 is installed and fixed on a chuck seat 26 of the chuck device 2, and the workpiece supporting seat 20b is arranged above the chuck seat 26.
Specifically, the extrusion positioning device 5 includes an extrusion cylinder 51, a cylinder connecting plate 52, a stop rod 55, a slide shaft cover plate 56, an extrusion slide shaft 57 and a slide shaft sleeve 58, the cylinder body of the extrusion cylinder 51 is mounted on the cylinder connecting plate 52, the cylinder connecting plate 52 is mounted and fixed on the upper frame 4, a piston rod 53 of the extrusion cylinder 51 extends towards the lower side of the upper frame 4, a piston head 54 of the piston rod 53 is fixedly connected to the upper end of the extrusion slide shaft 57 through the slide shaft cover plate 56, the stop rod 55 is arranged on two sides of the piston head 54, two sides of the extrusion slide shaft 57 are provided with stop rod extending grooves 57a corresponding to the stop rod 55 in a molding manner, the slide shaft sleeve 58 is sleeved on the outer side of the extrusion slide shaft 57 and is mounted and fixed under the upper frame 4, two sides of the slide shaft sleeve 58 are provided with stop rod 58a corresponding to the stop rod 55 in a molding manner, and the stop rod 55 extends into the stop rod extending grooves 58a, and the extrusion slide shaft 57 is pushed by the extrusion cylinder 51 to extrude the upper end of a central shaft of a rotary joint.
Wherein, the grinding contact surface 20d is distributed with grinding fluid drainage grooves 20e, the workpiece support seat 20b is communicated with the convex ring positioning cavity 20c and is formed with a pipe connecting hole 20f, a grinding fluid pumping main pipe 63 of the grinding fluid pumping device 6 extends from the lower part of the lower frame 1, the grinding fluid pumping main pipe 63 is connected with a grinding fluid pumping branch pipe 64, a liquid outlet pipe orifice of the grinding fluid pumping branch pipe 64 extends to the upper side of the convex ring positioning cavity 20c, one end of a grinding fluid return main pipe 66 of the grinding fluid pumping device 6 is connected with a grinding fluid tank 61, the other end of the grinding fluid return main pipe 66 is connected with a grinding fluid return branch pipe 65, the grinding fluid return branch pipe 65 is connected with the pipe connecting hole 20f, the grinding fluid pumping main pipe 63 is connected with the grinding fluid pump 62, and the grinding fluid pump 62 is arranged in the grinding fluid tank 61.
The motor protection cover 30 is arranged at the periphery of the driving motor 31 of the chuck rotation driving device 3, and the motor protection cover 30 is arranged between the lower frame 1 and the upper frame 4, so that the safety can be enhanced.
The grinding contact surface 20d is a spherical surface or a planar surface that matches the front end surface 300 of the collar 200 of the central rotation shaft 100.
The invention relates to an automatic grinding machine for a central shaft of a multi-station rotary joint, which is characterized in that a plurality of central shafts of the rotary joint to be processed, namely a central shaft 100 of the rotary joint are placed on each grinding seat 20 during operation, a convex ring 200 of the central shaft of the rotary joint is positioned in a convex ring positioning cavity 20c of the grinding seat 20, the front end surface 300 of the convex ring 200 is in matched contact with a grinding contact surface 20d of the grinding seat 20, an extrusion positioning device 5 extrudes and positions the central shaft of the rotary joint on the grinding seat 20 from the upper end of the central shaft of the rotary joint, then a chuck rotary driving device 3 drives a chuck device 2 to drive the grinding seat 20 to rotate, the front end surface 300 of the convex ring 200 is subjected to grinding processing through a grinding contact surface 20d of the grinding seat 20, the front end surface 300 of the convex ring 200 of the central shaft of the rotary joint is subjected to grinding processing at the same time in a multi-station mode, and meanwhile, the travel of the extrusion positioning device 5 is controlled, and the automatic grinding machine is applicable to processing central shafts of rotary joints with different lengths; the grinding contact surface 20d of the grinding base 20 may be formed into a spherical surface or a plane matching the front end surface 300 of the convex ring 200 of the rotation center shaft 100 as needed; in addition, during grinding, the grinding seat 20 can be added with grinding lubricant through the grinding lubricant pump-out device 6, and the grinding lubricant can be recycled, so that the grinding quality is improved, and the utilization rate of the grinding lubricant is high; the polishing machine has the characteristics that the polishing machine can simultaneously polish the front end faces 300 of the convex rings 200 of the plurality of rotary joint central shafts at multiple stations, the polishing efficiency is high, the surface precision of the front end faces 300 of the processed convex rings 200 is high, and the polishing machine can be specially used for polishing the front end faces 300 of the convex rings 200 of the rotary joint central shafts.
Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing description and the accompanying drawings, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (7)
1. The utility model provides a multistation rotary joint center pin automatic grinding machine which characterized in that: the grinding device comprises a lower frame (1), a chuck device (2), a grinding seat (20), a chuck rotary driving device (3), an upper frame (4) and an extrusion positioning device (5), wherein the chuck device (2) is arranged on the lower frame (1) in a distributed manner, the grinding seat (20) is fixedly arranged on the chuck device (2), the chuck rotary driving device (3) is fixedly arranged on the lower frame (1) and is in transmission connection with the chuck device (2) to drive the chuck device (2) to rotate, the upper frame (4) is fixedly arranged above the lower frame (1), the extrusion positioning device (5) is arranged on the upper frame (4) in a distributed manner, and the extrusion positioning device (5) and the chuck device (2) are arranged above the chuck device (2) in a one-to-one correspondence manner;
the chuck device (2) comprises a driven pulley (21), a pulley shaft (22), a bearing spacer (23), a first wheel bearing (23 a), a second wheel bearing (23 b), a wheel bearing seat (24), a bearing pressing plate (25) and a chuck seat (26), wherein the driven pulley (21) is fixedly arranged at the lower end of the pulley shaft (22), the bearing spacer (23) is sleeved on the shaft body of the pulley shaft (22), the first wheel bearing (23 a) and the second wheel bearing (23 b) are respectively arranged on the shaft body of the pulley shaft (22) and positioned at the two sides of the bearing spacer (23), the wheel bearing seat (24) is arranged at the outer sides of the first wheel bearing (23 a) and the second wheel bearing (23 b), the first wheel bearing (23 a) and the second wheel bearing (23 b) are arranged in the wheel bearing seat (24) and are fixedly positioned by the bearing pressing plate (25), the wheel bearing seat (24) is fixedly arranged on the lower frame (1), the chuck seat (26) is fixedly arranged at the upper end of the pulley shaft (22), and the driven pulley (21) is fixedly connected with the driving chuck (20) through the driving device;
the grinding seat (20) comprises a chuck connecting end (20 a), a workpiece supporting seat (20 b), a convex ring positioning cavity (20 c) and a grinding contact surface (20 d), wherein the chuck connecting end (20 a) is formed at the lower end of the workpiece supporting seat (20 b), the convex ring positioning cavity (20 c) is formed at the upper end of the workpiece supporting seat (20 b), the grinding contact surface (20 d) is formed in the convex ring positioning cavity (20 c), the chuck connecting end (20 a) of the grinding seat (20) is installed and fixed on a chuck seat (26) of the chuck device (2), and the workpiece supporting seat (20 b) is arranged above the chuck seat (26);
the extrusion positioning device (5) comprises an extrusion cylinder (51), a cylinder connecting plate (52), a check rod (55), a slide shaft cover plate (56), an extrusion slide shaft (57) and a slide shaft sleeve (58), wherein a cylinder body of the extrusion cylinder (51) is arranged on the cylinder connecting plate (52), the cylinder connecting plate (52) is fixedly arranged on the upper frame (4), a piston rod (53) of the extrusion cylinder (51) extends towards the lower side of the upper frame (4), a piston head (54) of the piston rod (53) is fixedly connected to the upper end of the extrusion slide shaft (57) through the slide shaft cover plate (56), the check rod (55) is arranged on two sides of the piston head (54), check rod extending grooves (57 a) are formed on two sides of the extrusion slide shaft (57) corresponding to the check rod (55), the slide shaft sleeve (58) is sleeved on the outer side of the extrusion slide shaft (57) and is arranged and fixed below the upper frame (4), two sides of the slide shaft sleeve (58) corresponding to the check rod (55) are formed and the check rod extending into the check rod extending grooves (58 a).
2. A multi-station rotary joint center shaft automatic grinding machine as defined in claim 1, wherein: the chuck rotation driving device (3) comprises a driving motor (31), a driving belt pulley (32) and a driving belt (33), wherein the driving motor (31) is fixedly arranged on the lower frame (1), the driving belt pulley (32) is fixedly arranged on a motor shaft of the driving motor (31), the driven belt pulleys (21) of the chuck device (2) are sequentially connected in a transmission manner through the driving belt (33), no direct transmission connection exists between the driven belt pulley (21) at the head end and the driven belt pulley (21) at the tail end, and the driving belt pulley (32) is in transmission connection with the driven belt pulley (21) at the head end through the driving belt (33).
3. A multi-station rotary joint center shaft automatic grinding machine as defined in claim 2, wherein: the outside of driving belt (33) is provided with tensioning belt pulley (36), tensioning belt pulley (36) adjustably mounted on tensioning wheel installation arm (35), and tensioning wheel installation arm (35) are installed and are fixed on frame connecting seat (34), and frame connecting seat (34) are installed and are fixed on lower frame (1).
4. A multi-station rotary joint center shaft automatic grinding machine as defined in claim 3, wherein: the tensioning pulley (36) comprises a tensioning wheel shaft (36 a), a tensioning wheel shaft bearing (36 b), a tensioning wheel body (36 c), a check ring (36 d), a flat washer (36 e), a spring washer (36 f) and a locking nut (36 g), one end of the tensioning wheel shaft (36 a) is arranged on a tensioning wheel mounting arm (35), the tensioning wheel shaft bearing (36 b) is sleeved on the shaft body of the tensioning wheel shaft (36 a), the tensioning wheel body (36 c) is sleeved on the outer side of the tensioning wheel shaft bearing (36 b), the check ring (36 d) is arranged on the inner wall of the tensioning wheel body (36 c) to position the outer edge of the tensioning wheel shaft bearing (36 b), the flat washer (36 e) is arranged on the shaft body of the tensioning wheel shaft (36 a) to position the inner edge of the tensioning wheel shaft bearing (36 b), the spring washer (36 f) is arranged on the shaft body of the tensioning wheel shaft (36 a) and is located on the outer side of the flat washer (36 e), and the locking nut (36 g) is in threaded connection with the other end of the tensioning wheel shaft (36 a) to fasten and position the spring washer (36 f).
5. A multi-station rotary joint center shaft automatic grinding machine as defined in claim 1, wherein: the grinding contact surface (20 d) is provided with grinding fluid drainage grooves (20 e) in a distributed mode, a pipe connecting hole (20 f) is formed in the workpiece supporting seat (20 b) and communicated with the convex ring positioning cavity (20 c), a grinding fluid pumping main pipe (63) of the grinding fluid pumping device (6) extends from the lower portion of the lower frame (1), the grinding fluid pumping main pipe (63) is connected with a grinding fluid pumping branch pipe (64), a liquid outlet pipe orifice of the grinding fluid pumping branch pipe (64) extends to the upper side of the convex ring positioning cavity (20 c), one end of a grinding fluid return main pipe (66) of the grinding fluid pumping device (6) is connected with a grinding fluid tank (61), the other end of the grinding fluid return main pipe (66) is connected with a grinding fluid return branch pipe (65), the grinding fluid return branch pipe (65) is connected to the pipe connecting hole (20 f), the grinding fluid pumping main pipe (63) is connected to a grinding fluid pump (62), and the grinding fluid pump (62) is arranged in the grinding fluid tank (61).
6. A multi-station rotary joint center shaft automatic grinding machine as defined in claim 2, wherein: the periphery of a driving motor (31) of the chuck rotation driving device (3) is provided with a motor protection cover (30), and the motor protection cover (30) is arranged between the lower frame (1) and the upper frame (4).
7. A multi-station rotary joint center shaft automatic grinding machine as defined in claim 1, wherein: the grinding contact surface (20 d) is a spherical surface or a plane matched with the front end surface (300) of the convex ring (200) of the rotation center shaft (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122568.9A CN108406535B (en) | 2018-02-07 | 2018-02-07 | Automatic grinding machine for central shaft of multi-station rotary joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122568.9A CN108406535B (en) | 2018-02-07 | 2018-02-07 | Automatic grinding machine for central shaft of multi-station rotary joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108406535A CN108406535A (en) | 2018-08-17 |
| CN108406535B true CN108406535B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810122568.9A Active CN108406535B (en) | 2018-02-07 | 2018-02-07 | Automatic grinding machine for central shaft of multi-station rotary joint |
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| Country | Link |
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| CN (1) | CN108406535B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111152097A (en) * | 2020-01-19 | 2020-05-15 | 苏州纽威阀门股份有限公司 | Grinding device |
| CN112676947A (en) * | 2020-12-28 | 2021-04-20 | 王兆举 | Automatic workpiece shaft butt-joint positioning mechanism for intelligent plane refiner |
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| CN208005403U (en) * | 2018-02-07 | 2018-10-26 | 佛山市南海区洪昌聚发机电阀门有限公司 | A kind of multiple-station rotation connector center axis autogenous mill |
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| JPH11333027A (en) * | 1998-05-28 | 1999-12-07 | Bridgestone Sports Co Ltd | Golf ball polishing device and polishing method using it and golf ball |
| KR20030022459A (en) * | 2001-09-10 | 2003-03-17 | 김순호 | Bowling Ball Resurfacing Apparatus |
| CN2738943Y (en) * | 2004-10-22 | 2005-11-09 | 无锡市腾旋旋转接头厂 | Sealed sphere grinding mechanism in rotary joint |
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| CN108406535A (en) | 2018-08-17 |
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