CN109732272A - A kind of full-ceramic bearing electric mainshaft bearing and shaft provision for disengagement - Google Patents
A kind of full-ceramic bearing electric mainshaft bearing and shaft provision for disengagement Download PDFInfo
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- CN109732272A CN109732272A CN201910196720.2A CN201910196720A CN109732272A CN 109732272 A CN109732272 A CN 109732272A CN 201910196720 A CN201910196720 A CN 201910196720A CN 109732272 A CN109732272 A CN 109732272A
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Abstract
A kind of full-ceramic bearing electric mainshaft bearing and shaft provision for disengagement, including workbench, electro spindle clamping positioning mechanism, bearing removal mechanism, electro spindle clamping positioning mechanism and bearing removal mechanism are installed on the workbench side by side；Electro spindle clamping positioning mechanism is for fixing electro spindle, and bearing removal mechanism is for disassembling bearing from shaft；Bearing removal mechanism is fitted with bearing removal multi-jaw chuck, bearing removal can carry out the adjustment of two-freedom position with multi-jaw chuck in the horizontal direction, bearing removal can turn round hook thereon with multi-jaw chuck, radial direction and axial position are finely adjusted, liquid nitrogen can be acted in shaft and bearing by bearing removal with multi-jaw chuck, through generating gap between overcooled bearing inner race meeting and shaft, bearing can be removed from shaft by bearing removal mechanism again, the bearing unloaded can stay on hook.The present invention improves horizontal automation disassembly, disassembly precision and working efficiency, realizes not damaged disassembly.
Description
Technical field
The invention belongs to electro spindles to dismount technical field, more particularly to a kind of full-ceramic bearing electric mainshaft bearing and shaft
Provision for disengagement.
Background technique
Electro spindle is the core component of numerically-controlled machine tool, and bearing is then the core component of electro spindle, in order to further increase
The running accuracy of electro spindle, more and more electro spindles start using ceramic bearing, and ceramic bearing is compared with traditional steel shaft is held, tool
There are the good performances such as thermal stability is good, wear-resistant, high-intensitive, this is also the key for improving electro spindle running accuracy.
Currently, the electro spindle held using traditional steel shaft when being dismantled, is relied primarily on manual type and completes disassembly, caused
Labor intensity of workers is big, and working efficiency is low, usually can also destroy the precision of main shaft and bearing surface, until carrying out again
After assembly, since the precision of main shaft and bearing surface has generated destruction, the running precision of electro spindle would necessarily affect.
If electro spindle is using ceramic bearing, compared with the electro spindle held using traditional steel shaft, method for dismounting will
It can substantially change, be dismantled if also relying on manual type, will be increasingly difficult to meet actual needs.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of full-ceramic bearing electric mainshaft bearing and shaft disassembly fills
It sets, automation disassembly level is greatly improved, not only effectively reduces the labor intensity of worker, and effectively increase disassembly
Precision, while can be realized not damaged disassembly, and effectively increase working efficiency.
To achieve the goals above, the present invention adopts the following technical scheme: a kind of full-ceramic bearing electric mainshaft bearing with turn
Axis provision for disengagement, including workbench, electro spindle clamping positioning mechanism, bearing removal mechanism；The electro spindle clamping positioning mechanism
It is installed on the workbench side by side with bearing removal mechanism；The electro spindle clamping positioning mechanism includes positioning mechanism pedestal, positioning
Mechanism guide rail, first wire nut sliding block, the first lead screw, first clamp driving motor, the second screw sliding block, the second lead screw, the second folder
Tight driving motor, electro spindle support positioning seat and height adjustment hydraulic cylinder；The positioning mechanism pedestal is fixedly mounted on the table, institute
It states positioning mechanism guide rail to be horizontally set on positioning mechanism pedestal, the first wire nut sliding block and the second screw sliding block are symmetrically installed
On positioning mechanism guide rail；The first clamping driving motor is fixed on positioning mechanism pedestal by first motor mounting rack,
The motor shaft of first clamping driving motor is fixedly connected with the first lead screw end, and first wire nut slide block set is mounted on the first lead screw,
First collet is installed on first wire nut sliding block；First lead screw is parallel with positioning mechanism guide rail；Described second clamps
Driving motor is fixed on positioning mechanism pedestal by the second motor mounting rack, and second clamps the motor shaft and second of driving motor
Lead screw end is fixedly connected with, and the second screw slide block set is equipped with the second collet on the second screw sliding block on the second lead screw；
Second lead screw is parallel with positioning mechanism guide rail；In the positioning mechanism pedestal among first collet and the second collet
It is provided with hydraulic cylinder mounting groove, the height adjustment hydraulic cylinder is packed in vertically in hydraulic cylinder mounting groove, and is highly adjusted hydraulic
The piston rod of cylinder is arranged upward, and the electro spindle support positioning seat is packed in the piston rod part that height adjusts hydraulic cylinder.
The bearing removal mechanism includes disassembly mechanism pedestal, the first disassembly mechanism guide rail, first wire nut slide unit, the first rolling
Ballscrew, first driving handwheel, the second disassembly mechanism guide rail, the second screw slide unit, the second ball-screw, second driving handwheel,
Bearing removal multi-jaw chuck and chuck fixing frame；The disassembly mechanism pedestal is fixedly mounted on the table, first demountor
Structure guide rail is horizontally set on disassembly mechanism pedestal, and the first wire nut slide unit is mounted on the first disassembly mechanism guide rail, and the
One screw slide unit is sleeved in first ball screw, and first ball screw is parallel with the first disassembly mechanism guide rail；Described first
Driving handwheel is packed in the end of first ball screw；The second disassembly mechanism guide rail level is packed in first wire nut slide unit
On, the second disassembly mechanism guide rail and the first disassembly mechanism guide rail are perpendicular；The second screw slide unit is mounted on the second demountor
On structure guide rail, and the second screw slide unit is sleeved on the second ball-screw, the second ball-screw and the second disassembly mechanism guide rail phase
In parallel；The second driving handwheel is packed in the end of the second ball-screw；It is sliding that the chuck fixing frame is packed in the second screw
On platform, the bearing removal is mounted in chuck fixing frame with multi-jaw chuck, and the central axes of bearing removal multi-jaw chuck with
Second disassembly mechanism guide rail is parallel.
The bearing removal multi-jaw chuck includes chuck pedestal, electric turntable, chuck end and hook；The chuck base
Seat is packed in chuck fixing frame, and the chuck end is connected on chuck pedestal by electric turntable；The chuck end is in
Cirque structure, in chuck end, inner surface offers several cooling holes, and in several cooling hole tandems a to conduit, conduit is another
One end is connected with liquid nitrogen container, and liquid nitrogen container is placed on the table；The hook quantity is three or four, and hook is located at chuck-end
On the axial outer end face of head, hook can adjust automatically radial position and axial position on chuck end.
Beneficial effects of the present invention:
Automation disassembly water is greatly improved in full-ceramic bearing electric mainshaft bearing and shaft provision for disengagement of the invention
It is flat, the labor intensity of worker is not only effectively reduced, and effectively increase disassembly precision, while can be realized not damaged tear open
It unloads, and effectively increases working efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a kind of full-ceramic bearing electric mainshaft bearing and shaft provision for disengagement of the invention；
Fig. 2 is the structural schematic diagram of electro spindle clamping positioning mechanism of the invention；
Fig. 3 is the structural schematic diagram of bearing removal mechanism of the invention；
Fig. 4 is the structural schematic diagram of bearing removal multi-jaw chuck of the invention；
In figure, 1-workbench, 2-electro spindle clamping positioning mechanisms, 3-bearing removal mechanisms, 4-positioning mechanism pedestals,
5-positioning mechanism guide rails, 6-first wire nut sliding blocks, the 7-the first lead screw, 8-the first clamps driving motor, and the 9-the second screw is sliding
Block, the 10-the second lead screw, 11-the second clamps driving motor, and 12-electro spindles support positioning seat, and 13-height adjust hydraulic cylinders,
14-first motor mounting racks, the 15-the first collet, the 16-the second collet, 17-disassembly mechanism pedestals, the 18-the first demountor
Structure guide rail, 19-first wire nut slide units, 20-first ball screws, the 21-the first driving handwheel, the 22-the second disassembly mechanism are led
Rail, the 23-the second screw slide unit, the 24-the second ball-screw, the 25-the second driving handwheel, 26-bearing removal multi-jaw chucks,
27-chuck fixing frames, 28-chuck pedestals, 29-electric turntables, 30-chuck ends, 31-hooks, 32-cooling holes,
33-liquid nitrogen containers, the 34-the second motor mounting rack.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in figures 1-4, a kind of full-ceramic bearing electric mainshaft bearing and shaft provision for disengagement, including workbench 1, electricity are main
Axis clamping positioning mechanism 2, bearing removal mechanism 3；The electro spindle clamping positioning mechanism 2 and bearing removal mechanism 3 are installed side by side
On workbench 1；The electro spindle clamping positioning mechanism 2 is sliding including positioning mechanism pedestal 4, positioning mechanism guide rail 5, first wire nut
Block 6, the first lead screw 7, first clamp driving motor 8, the second screw sliding block 9, the second lead screw 10, second clamp driving motor 11,
Electro spindle supports positioning seat 12 and height adjustment hydraulic cylinder 13；The positioning mechanism pedestal 4 is packed on workbench 1, described fixed
Position mechanism guide rail 5 is horizontally set on positioning mechanism pedestal 4, and the first wire nut sliding block 6 and the second screw sliding block 9 are symmetrically installed
On positioning mechanism guide rail 5；The first clamping driving motor 8 is fixed on positioning mechanism pedestal by first motor mounting rack 14
On 4, the motor shaft of the first clamping driving motor 8 is fixedly connected with 7 end of the first lead screw, and first wire nut sliding block 6 is sleeved on first
On lead screw 7, the first collet 15 is installed on first wire nut sliding block 6；First lead screw 7 is parallel with positioning mechanism guide rail 5；
The second clamping driving motor 11 is fixed on positioning mechanism pedestal 4 by the second motor mounting rack 34, and second clamps driving
The motor shaft of motor 11 is fixedly connected with 10 end of the second lead screw, and the second screw sliding block 9 is sleeved on the second lead screw 10, second
Second collet 16 is installed on screw sliding block 9；Second lead screw 10 is parallel with positioning mechanism guide rail 5；In first folder
First 15 and the second collet 16 among positioning mechanism pedestal 4 in be provided with hydraulic cylinder mounting groove, the height adjusts hydraulic cylinder 13
It is packed in hydraulic cylinder mounting groove vertically, and the piston rod of height adjustment hydraulic cylinder 13 is arranged upward, the electro spindle support is fixed
Position seat 12 is packed in the piston rod part that height adjusts hydraulic cylinder 13.
The bearing removal mechanism 3 includes disassembly mechanism pedestal 17, the first disassembly mechanism guide rail 18, first wire nut slide unit
19, first ball screw 20, first drives handwheel 21, the second disassembly mechanism guide rail 22, the second screw slide unit 23, the second ball wire
Thick stick 24, second drives handwheel 25, bearing removal multi-jaw chuck 26 and chuck fixing frame 27；The disassembly mechanism pedestal 17 is fixedly mounted with
On workbench 1, the first disassembly mechanism guide rail 18 is horizontally set on disassembly mechanism pedestal 17, the first wire nut slide unit
19 are mounted on the first disassembly mechanism guide rail 18, and first wire nut slide unit 19 is sleeved in first ball screw 20, the first ball
Lead screw 20 is parallel with the first disassembly mechanism guide rail 18；The first driving handwheel 21 is packed in the end of first ball screw 20
Portion；Second disassembly mechanism guide rail, 22 level is packed on first wire nut slide unit 19, the second disassembly mechanism guide rail 22 and first
Disassembly mechanism guide rail 18 is perpendicular；The second screw slide unit 23 is mounted on the second disassembly mechanism guide rail 22, and the second screw
Slide unit 23 is sleeved on the second ball-screw 24, and the second ball-screw 24 is parallel with the second disassembly mechanism guide rail 22；Described
Two driving handwheels 25 are packed in the end of the second ball-screw 24；The chuck fixing frame 27 is packed in the second screw slide unit 23
On, the bearing removal multi-jaw chuck 26 is mounted in chuck fixing frame 27, and the bearing removal axis of multi-jaw chuck 26
Line is parallel with the second disassembly mechanism guide rail 22.
Bearing removal multi-jaw chuck 26 includes chuck pedestal 28, electric turntable 29, chuck end 30 and hook 31；
The chuck pedestal 28 is packed in chuck fixing frame 27, and the chuck end 30 is connected to chuck pedestal by electric turntable 29
On 28；The chuck end 30 is in cirque structure, and in chuck end, 30 inner surface offers several cooling holes 32, several coolings
In 32 tandem of hole a to conduit, the conduit other end is connected with liquid nitrogen container 33, and liquid nitrogen container 33 is placed on workbench 1；The hook
31 quantity of pawl is three or four, and hook 31 is located on the axial outer end face of chuck end 30, and hook 31 is on chuck end 30
It can adjust automatically radial position and axial position.
Illustrate first use process of the invention with reference to the accompanying drawing:
Electro spindle is horizontally arranged on electro spindle support positioning seat 12 first, then adjustment height adjustment hydraulic cylinder 13 is living
The overhang of stopper rod, and then realize electro spindle support positioning seat 12 and the adjustment of electro spindle height and position thereon, until electro spindle
Central axes and the central axes of bearing removal multi-jaw chuck 26 be in same level.
The first clamping driving motor 8 and second is respectively started and clamps driving motor 11, makes first wire nut sliding block 6 and second
Female sliding block 9 is moved towards along localization mechanism guide rail 5, until the first collet 15 and the second collet 16 are clamped in electro spindle shell
On.
First rotation the first driving handwheel 21, moves first wire nut slide unit 19 along the first disassembly mechanism guide rail 18, until
The bearing removal central axes of multi-jaw chuck 26 and bearing removal are coincided with the central axes of multi-jaw chuck 26；Then second is rotated
Handwheel 25 is driven, moves the second screw slide unit 23 along the second disassembly mechanism guide rail 22, until the shaft of electro spindle moves into axis
It holds in 30 inner hole of chuck end of disassembly multi-jaw chuck 26；
The radial position for first adjusting hook 31, makes the radial clearance of 31 alignment bearings Internal and external cycle of hook, then controls electronic
Turntable 29 acts, and adjusts the circumferential position of hook 31, makes the gap between 31 alignment bearings ball of hook, finally adjusts hook 31
Axial position protrudes into hook 31 in the gap between holding ball.
Next, opening liquid nitrogen container 33, liquid nitrogen is introduced into chuck end 30 by conduit, and liquid nitrogen is made to pass through several cooling holes
32 are applied in shaft and bearing, rear bearing and shaft are carried out using liquid nitrogen it is whole cooling, using ceramic material (bearing) with
The shrinking percentage difference of Steel material (shaft), makes to generate gap between the inner ring of bearing and shaft.
After cooling, when generation gap meets bearing removal requirement between the inner ring and shaft of bearing, hook is finely tuned
31 radial position makes 31 stretching bearing outer ring of hook, then rotates the second driving handwheel 25, makes bearing removal multi-jaw chuck
26 away from electro spindle direction it is mobile, until bearing is completely disengaged from shaft, and the bearing unloaded has then stayed in hook
On 31.
The scope of patent protection that scheme in embodiment is not intended to limit the invention, it is all without departing from carried out by the present invention etc.
Effect implements or change, is both contained in the scope of the patents of this case.
Claims (3)
1. a kind of full-ceramic bearing electric mainshaft bearing and shaft provision for disengagement, it is characterised in that: clamped including workbench, electro spindle
Positioning mechanism, bearing removal mechanism；The electro spindle clamping positioning mechanism and bearing removal mechanism are installed on the workbench side by side；
The electro spindle clamping positioning mechanism includes positioning mechanism pedestal, positioning mechanism guide rail, first wire nut sliding block, the first lead screw,
One clamps driving motor, the second screw sliding block, the second lead screw, the second clamping driving motor, electro spindle support positioning seat and height
Adjust hydraulic cylinder；The positioning mechanism pedestal is fixedly mounted on the table, and the positioning mechanism guide rail is horizontally set on positioning mechanism
On pedestal, the first wire nut sliding block and the second screw sliding block are symmetrically mounted on positioning mechanism guide rail；Described first clamps drive
Dynamic motor is fixed on positioning mechanism pedestal by first motor mounting rack, and first clamps the motor shaft of driving motor and first
Thick stick end is fixedly connected with, and first wire nut slide block set is equipped with the first collet on the first lead screw on first wire nut sliding block；Institute
It is parallel with positioning mechanism guide rail to state the first lead screw；It is fixed that the second clamping driving motor is fixed on by the second motor mounting rack
On the mechanism base of position, the motor shaft of the second clamping driving motor is fixedly connected with the second lead screw end, and the second screw sliding block is set with
On the second lead screw, the second collet is installed on the second screw sliding block；Second lead screw is parallel with positioning mechanism guide rail；
Hydraulic cylinder mounting groove is provided in the positioning mechanism pedestal among first collet and the second collet, the height adjusts liquid
Cylinder pressure is packed in vertically in hydraulic cylinder mounting groove, and the piston rod of height adjustment hydraulic cylinder is arranged upward, the electro spindle support
Positioning seat is packed in the piston rod part that height adjusts hydraulic cylinder.
2. a kind of full-ceramic bearing electric mainshaft bearing according to claim 1 and shaft provision for disengagement, it is characterised in that: institute
Stating bearing removal mechanism includes disassembly mechanism pedestal, the first disassembly mechanism guide rail, first wire nut slide unit, first ball screw,
One driving handwheel, the second disassembly mechanism guide rail, the second screw slide unit, the second ball-screw, the second driving handwheel, bearing removal are used
Multi-jaw chuck and chuck fixing frame；The disassembly mechanism pedestal is fixedly mounted on the table, and the first disassembly mechanism guide rail is horizontal
It is arranged on disassembly mechanism pedestal, the first wire nut slide unit is mounted on the first disassembly mechanism guide rail, and first wire nut slide unit
It is sleeved in first ball screw, first ball screw is parallel with the first disassembly mechanism guide rail；The first driving handwheel is solid
Mounted in the end of first ball screw；The second disassembly mechanism guide rail level is packed on first wire nut slide unit, the second disassembly
Mechanism guide rail and the first disassembly mechanism guide rail are perpendicular；The second screw slide unit is mounted on the second disassembly mechanism guide rail, and
Second screw slide unit is sleeved on the second ball-screw, and the second ball-screw is parallel with the second disassembly mechanism guide rail；Described
Two driving handwheels are packed in the end of the second ball-screw；The chuck fixing frame is packed on the second screw slide unit, the axis
It holds disassembly to be mounted in chuck fixing frame with multi-jaw chuck, and the central axes of bearing removal multi-jaw chuck and the second disassembly mechanism
Guide rail is parallel.
3. a kind of full-ceramic bearing electric mainshaft bearing according to claim 2 and shaft provision for disengagement, it is characterised in that: institute
Stating bearing removal multi-jaw chuck includes chuck pedestal, electric turntable, chuck end and hook；The chuck pedestal is packed in card
On disk fixed frame, the chuck end is connected on chuck pedestal by electric turntable；The chuck end is in cirque structure,
In chuck end, inner surface offers several cooling holes, and in several cooling hole tandems a to conduit, the conduit other end is connected with
Liquid nitrogen container, liquid nitrogen container are placed on the table；The hook quantity is three or four, and the axis that hook is located at chuck end is outside
On end face, hook can adjust automatically radial position and axial position on chuck end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196720.2A CN109732272B (en) | 2019-03-15 | 2019-03-15 | Full ceramic bearing electricity main shaft bearing and pivot dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196720.2A CN109732272B (en) | 2019-03-15 | 2019-03-15 | Full ceramic bearing electricity main shaft bearing and pivot dismounting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109732272A true CN109732272A (en) | 2019-05-10 |
| CN109732272B CN109732272B (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910196720.2A Active CN109732272B (en) | 2019-03-15 | 2019-03-15 | Full ceramic bearing electricity main shaft bearing and pivot dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109732272B (en) |
Cited By (5)
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| CN111451715A (en) * | 2020-04-17 | 2020-07-28 | 攀钢集团西昌钢钒有限公司 | Pin shaft dismounting tool and method |
| CN111761295A (en) * | 2020-06-03 | 2020-10-13 | 明阳智慧能源集团股份公司 | Nondestructive separation and disassembly method for main shaft and bearing of wind generating set |
| CN112847239A (en) * | 2021-01-21 | 2021-05-28 | 东北大学秦皇岛分校 | Casing pipe dismounting device and method based on asynchronous multi-frequency induction heating |
| CN115194451A (en) * | 2022-07-29 | 2022-10-18 | 清华大学 | End cover dismounting device |
| CN115338597A (en) * | 2022-10-18 | 2022-11-15 | 新乡市福晟机械有限公司 | Assembly device for direct-drive spindle of machine tool |
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| CN111761295A (en) * | 2020-06-03 | 2020-10-13 | 明阳智慧能源集团股份公司 | Nondestructive separation and disassembly method for main shaft and bearing of wind generating set |
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| CN115338597A (en) * | 2022-10-18 | 2022-11-15 | 新乡市福晟机械有限公司 | Assembly device for direct-drive spindle of machine tool |
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| CN109732272B (en) | 2020-09-11 |
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