CN107166000A - A kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box - Google Patents
A kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box Download PDFInfo
- Publication number
- CN107166000A CN107166000A CN201710514121.1A CN201710514121A CN107166000A CN 107166000 A CN107166000 A CN 107166000A CN 201710514121 A CN201710514121 A CN 201710514121A CN 107166000 A CN107166000 A CN 107166000A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- spindle box
- sealing ring
- main spindle
- guide pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 239000004519 grease Substances 0.000 claims description 34
- 230000001050 lubricating effect Effects 0.000 claims description 31
- 239000000428 dust Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000007142 ring opening reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000029142 excretion Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box, including back-up ring, main spindle box body, main shaft guide pin bushing, nut, lower seal, leading screw, main shaft sliding axle, lower end guide pin bushing, main shaft lower end sealing ring cover, main shaft lower end sealing ring on upper sealing ring, main spindle box.Beneficial effect of the present invention is, determine the hermetically sealed operation problem of full electric servo numerical control bender main spindle box on existing market, solve non-sealed state lower outer portion dust and foreign matter enters in the moving components such as ball screw assembly, and bearing, inordinate wear is caused, so as to reduce the defect of the moving component service life such as ball screw assembly, and bearing.
Description
Technical field
The present invention relates to the technical field of industrial equipment, and in particular to a kind of full-sealed high-speed type digital controlled servo bending-machine master
Axle box.
Background technology
The main distinction of full electric servo numerical control bender and General hydraulic type numerical control bender is that all kinematic axis are all adopted
Motion control is carried out with parts such as electronic servomotor and ball-screws, hydraulic system is eliminated, without using hydraulic oil.Full electricity is watched
The critical component that bender main spindle box is full electric servo numerical control bender is taken, is linear motion, output folding by convert rotational motion
Curved pressure is used for workpiece bending.
Because bending is loaded from more than ten tons to more than hundreds of tons, it is necessary to be lubricated using anti-heavily loaded extreme pressure grease,
Attendant periodically injects extreme pressure grease after cabinets cavity from oil inlet passage, each loading bearing is lubricated downwards, during footpath is yearned for
Heart direction enters central area lubricated balls lead screw pair, and further lubricating grease goes downwards to lower end guide pin bushing inner chamber via ball-screw,
Lubricating spindle sliding axle.
Further, if full electric servo numerical control bender main spindle box can not be effectively isolated external dust and foreign matter, dust
The nut interior of ball screw assembly, can be entered with foreign matter, cause ball and raceway to wear and tear, so that the life-span of ball screw assembly, is reduced,
In addition the replacing of ball screw assembly, will dismantle other a large amount of parts such as main spindle box, sliding block and synchronizing wheel mechanism, and maintenance cost is non-
Chang Gao, therefore improve the moving component such as ball screw assembly, and bearing running environment to improve the motion such as ball screw assembly, and bearing
The service life of part, can effectively reduce the use cost of digital controlled servo bending-machine.
The content of the invention
In view of the deficiencies in the prior art, it is contemplated that in a kind of full-sealed high-speed type digital controlled servo bending-machine main shaft of offer
Case, by upper sealing ring, lower seal and main shaft lower end sealing ring by grease sealing in main spindle box, in whole main spindle box
Lubricating grease is in whole sealing status, it is ensured that the moving component such as ball screw assembly, and bearing may be at sealed environment and have for a long time
In the lubricating place of effect, external dust and foreign matter will not enter in the moving components such as ball screw assembly, and bearing, so as to improve
The service life of the moving component such as ball screw assembly, and bearing.
Further, main shaft sliding axle and lower end guide pin bushing use spline guide frame, and the characteristics of spline is oriented to is ground in mechanism
Close and multiple cambered surface contacts are gradually formed after a period of time, can gradually increase sliding contact area, effectively reduction main shaft is slided
The abrasion of axle and lower end guide pin bushing and the stability and bending positioning precision for lifting high-speed motion.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box, including back-up ring, main spindle box on upper sealing ring, main spindle box
Body, main shaft guide pin bushing, nut, lower seal, leading screw, main shaft sliding axle, lower end guide pin bushing, main shaft lower end sealing ring cover, main shaft lower end
Sealing ring；Wherein, the upper sealing ring is located at back-up ring on main spindle box body top, the main spindle box and is located at upper sealing ring inner ring, institute
The nut outer wall for stating ball screw assembly, is equipped with main shaft guide pin bushing, and the lower seal is located at main spindle box body bottom, the ball-screw
Secondary leading screw connects main shaft sliding axle by general flat key, and the main shaft sliding axle is slided up and down in the guide pin bushing of lower end, the master
Axle lower end sealing ring cover is located at lower end guide pin bushing bottom, and main shaft lower end sealing ring is located inside main shaft lower end sealing ring cover.
It should be noted that the main shaft lower end sealing ring cover includes main shaft lower end sealing ring, main shaft lower end sealing ring is
Internal spline shape and multi-disc sealing ring overlaying structure, the external splines adhered shape with main shaft sliding axle.
It should be noted that the spline guide frame of the main shaft sliding axle and lower end guide pin bushing limit main shaft sliding axle with
And the rotary freedom of leading screw, main shaft sliding axle and leading screw can only move up and down.
It should be noted that the spline guide frame employs arc spline.
It should be noted that back-up ring lower end has opening to design on the main spindle box, lubricating grease can enter center via opening
Region.
It should be noted that the main shaft guide pin bushing outer wall has circular hole design, lubricating grease can enter central area via circular hole.
It should be noted that the lower end guide pin bushing is provided with oil discharge outlet in bottom, drain mast is can access by unnecessary lubricating grease
Excretion.
Beneficial effect of the present invention is, the hermetically sealed operation of full electric servo numerical control bender main spindle box on existing market of having determined
Problem, solves non-sealed state lower outer portion dust and foreign matter enters in the moving components such as ball screw assembly, and bearing, causes
Inordinate wear, so as to reduce the defect of the moving component service life such as ball screw assembly, and bearing.In addition the flower that the present invention is used
Key guiding mechanism, which is used for a long time, can be stepped up sliding contact area, stability and bending positioning precision during lifting high-speed motion
And effectively reduction abrasion；The sealing problem of splined shaft is solved using multilayer spline type sealing figure, it is ensured that main spindle box it is hermetically sealed
It is required that.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is A portions close-up schematic view in Fig. 1；
Fig. 3 is section B-B structural representation in Fig. 1.
Reference：1st, upper sealing ring；2nd, back-up ring on main spindle box；3rd, main spindle box body；4th, main shaft guide pin bushing；5th, nut；6th, under
Sealing ring；7th, leading screw；8th, main shaft sliding axle；9th, lower end guide pin bushing；10th, main shaft lower end sealing ring cover；11st, main shaft lower end sealing ring.
Embodiment
Below with reference to accompanying drawing, the invention will be further described, it is necessary to which explanation, the present embodiment is with this technology side
Premised on case, detailed embodiment and specific operating process are given, but protection scope of the present invention is not limited to this reality
Apply example.
As shown in FIG. 1 to 3, the present invention is a kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box, including upper close
Back-up ring 2 in seal 1, main spindle box, main spindle box body 3, main shaft guide pin bushing 4, nut 5, lower seal 6, leading screw 7, main shaft sliding axle 8, under
Hold guide pin bushing 9, main shaft lower end sealing ring cover 10, main shaft lower end sealing ring 11；Wherein, the upper sealing ring 1 is located on main spindle box body 3
Back-up ring 2 is located at the upper inner ring of sealing ring 1 on portion, the main spindle box, and the outer wall of nut 5 of the ball screw assembly, is equipped with main shaft guide pin bushing 4,
The lower seal 6 is located at the bottom of main spindle box body 3, and the leading screw 7 of the ball screw assembly, connects main shaft by general flat key and slided
Axle 8, the main shaft sliding axle 8 is slided up and down in lower end guide pin bushing 9, and the main shaft lower end sealing ring cover 10 is located at lower end guide pin bushing 9
Bottom, main shaft lower end sealing ring 11 is located inside main shaft lower end sealing ring cover 10.
Further, as shown in FIG. 1 to 3, the main shaft lower end sealing ring cover 10 includes main shaft lower end sealing ring 11, main
Axle lower end sealing ring 11 is internal spline shape and multi-disc sealing ring overlaying structure, the external splines adhered shape with main shaft sliding axle.
It should be noted that the spline guide frame of the main shaft sliding axle 8 and lower end guide pin bushing 9 limits main shaft sliding axle
8 and the rotary freedom of leading screw 7, main shaft sliding axle 8 and leading screw 7 can only move up and down.
Further, the spline guide frame employs arc spline.
It should be noted that back-up ring lower end has opening to design on the main spindle box, lubricating grease can enter center via opening
Region.
It should be noted that the main shaft guide pin bushing outer wall has circular hole design, lubricating grease can enter central area via circular hole.
It should be noted that the lower end guide pin bushing is provided with oil discharge outlet in bottom, drain mast is can access by unnecessary lubricating grease
Excretion.
Further, main shaft sliding axle of the invention and lower end guide pin bushing use spline guide frame, the characteristics of spline is oriented to
Multiple cambered surface contacts are gradually formed afterwards for a period of time in mechanism break-in, can effectively increase sliding contact area, effectively reduction
The abrasion of main shaft sliding axle and lower end guide pin bushing simultaneously lifts high-speed motion stability.
Further, being brought into close contact and wear-resistant property due to main shaft sliding axle and lower end guide pin bushing, main shaft main shaft sliding axle
Backlass and resetting error between the guide pin bushing of lower end is also corresponding smaller, so as to improve the positioning precision of bending.
Because bending is loaded from more than ten tons to more than hundreds of tons, it is necessary to be lubricated using anti-heavily loaded extreme pressure grease,
Attendant periodically injects extreme pressure grease after cabinets cavity from oil inlet passage, each loading bearing is lubricated downwards, during footpath is yearned for
Heart direction enters central area lubricated balls lead screw pair, and further lubricating grease goes downwards to lower end guide pin bushing inner chamber via ball-screw,
Lubricating spindle sliding axle.Upper sealing ring, lower seal and main shaft lower end sealing ring in main spindle box, entirely lead grease sealing
Lubricating grease in axle box is in whole sealing status, it is ensured that the moving component such as ball screw assembly, and bearing may be at sealed environment
In permanently effective lubricating place, external dust and foreign matter will not enter in the moving components such as ball screw assembly, and bearing, from
And improve the service life of the moving components such as ball screw assembly, and bearing.
Grease nipple is provided with grease nipple or single-way lubricating passage, and lubricating grease can only inject, it is impossible to reversely flow out this
Passage.
Because main shaft guide pin bushing and nut are rotary motion in operation, lubricating grease can pass through main shaft due to centrifugal force
Back-up ring opening and main shaft guide pin bushing circular hole are outwards thrown away on case, are caused the lubricating grease of central area constantly to reduce, are caused ball-screw
Secondary lack of lubrication.The method that the present invention solves this problem is realized by upper sealing ring and lower seal, first lubricating grease
Cabinets cavity is injected from oil inlet passage, each loading bearing is lubricated downwards, because bearing top has upper sealing ring and bearing bottom to have
Lower seal, the lubricating grease of injection has then been crowded with bearing cavity after reaching certain fat amount, when now reinjecting lubricating grease, lubricating grease
Central area lubricated balls lead screw pair can only be entered via back-up ring opening on main spindle box and main shaft guide pin bushing circular hole.When main shaft guide pin bushing and
When nut rotates together, lubricating grease can be justified due to centrifugal force by back-up ring opening on main spindle box and main shaft guide pin bushing in theory
Hole is outwards thrown away, but because bearing cavity has been filled with lubricating grease, actually lubricating grease, which can not outwards be thrown away, enters bearing cavity,
Which ensures that there is enough lubricating grease central area.
Further, into ball screw assembly, lubricating grease by the up and down motion and Action of Gravity Field of leading screw downwardly under
Guide pin bushing inner chamber is held, the relative motion for main shaft sliding axle and lower end guide pin bushing provides lubrication.
Further, sealing ring cover in main shaft lower end includes main shaft lower end sealing ring, and main shaft lower end sealing ring is interior using uniqueness
Spline-shaped and multi-disc sealing ring overlaying structure, the external splines adhered shape with main shaft sliding axle, so as to be effectively isolated outside ash
Dirt and foreign matter.
By the combination sealing of upper sealing ring, lower seal and main shaft lower end sealing ring, lubricating grease is completely sealed in master
In axle box, the moving parts such as ball screw assembly, bearing and main shaft sliding axle are provided with permanently effective lubricant environment, rolling is improved
The service life of the moving parts such as ballscrew pair, bearing and main shaft sliding axle.
For those skilled in the art, technical scheme that can be as described above and design, make other each
It is kind corresponding to change and deform, and all these change and deformation should all belong to the protection model of the claims in the present invention
Within enclosing.
Claims (7)
1. a kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box, it is characterised in that including being kept off on upper sealing ring, main spindle box
Circle, main spindle box body, main shaft guide pin bushing, nut, lower seal, leading screw, main shaft sliding axle, lower end guide pin bushing, main shaft lower end sealing ring cover,
Main shaft lower end sealing ring；Wherein, the upper sealing ring is located at back-up ring on main spindle box body top, the main spindle box and is located at upper sealing ring
Inner ring, the nut outer wall of ball screw assembly, is equipped with main shaft guide pin bushing, and the lower seal is located at main spindle box body bottom, the ball wire
The secondary leading screw of thick stick connects main shaft sliding axle by general flat key, and the main shaft sliding axle is slided up and down in the guide pin bushing of lower end, described
Main shaft lower end sealing ring cover is located at lower end guide pin bushing bottom, and main shaft lower end sealing ring is located inside main shaft lower end sealing ring cover.
2. full-sealed high-speed type digital controlled servo bending-machine main spindle box according to claim 1, it is characterised in that the main shaft
Lower end sealing ring cover includes main shaft lower end sealing ring, and main shaft lower end sealing ring is internal spline shape and multi-disc sealing ring superposition knot
Structure, the external splines adhered shape with main shaft sliding axle.
3. full-sealed high-speed type digital controlled servo bending-machine main spindle box according to claim 1, it is characterised in that the main shaft
The spline guide frame of sliding axle and lower end guide pin bushing limits the rotary freedom of main shaft sliding axle and leading screw, main shaft sliding axle
And leading screw can only move up and down.
4. full-sealed high-speed type digital controlled servo bending-machine main spindle box according to claim 3, it is characterised in that the spline
Guide frame employs arc spline.
5. full-sealed high-speed type digital controlled servo bending-machine main spindle box according to claim 1, it is characterised in that the main shaft
Back-up ring lower end has opening to design on case, and lubricating grease can enter central area via opening.
6. full-sealed high-speed type digital controlled servo bending-machine main spindle box according to claim 1, it is characterised in that the main shaft
Guide pin bushing outer wall has circular hole design, and lubricating grease can enter central area via circular hole.
7. full-sealed high-speed type digital controlled servo bending-machine main spindle box according to claim 1, it is characterised in that the lower end
Guide pin bushing is provided with oil discharge outlet in bottom, can access drain mast and drains unnecessary lubricating grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514121.1A CN107166000A (en) | 2017-06-28 | 2017-06-28 | A kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514121.1A CN107166000A (en) | 2017-06-28 | 2017-06-28 | A kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107166000A true CN107166000A (en) | 2017-09-15 |
Family
ID=59826410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710514121.1A Pending CN107166000A (en) | 2017-06-28 | 2017-06-28 | A kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107166000A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692113A (en) * | 2020-12-14 | 2021-04-23 | 瑞铁机床（苏州）股份有限公司 | Multi-drive combined bending machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009063143A (en) * | 2007-09-10 | 2009-03-26 | Hiwin Mikrosystem Corp | Bearing lubrication structure for direct drive type torque motor device |
| CN104052188A (en) * | 2014-07-02 | 2014-09-17 | 上海翱锐控制系统有限公司 | Precise electric cylinder |
| CN205534082U (en) * | 2016-04-08 | 2016-08-31 | 山东博特精工股份有限公司 | Vice high dustproof combined seal ring of ball |
| CN205929547U (en) * | 2016-07-28 | 2017-02-08 | 广州纽蓝客精密机床有限公司 | Complete electric servo bender headstock with self -lubricate and sealing device |
| CN206943356U (en) * | 2017-06-28 | 2018-01-30 | 广州纽蓝客精密机床有限公司 | A kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box |
-
2017
- 2017-06-28 CN CN201710514121.1A patent/CN107166000A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009063143A (en) * | 2007-09-10 | 2009-03-26 | Hiwin Mikrosystem Corp | Bearing lubrication structure for direct drive type torque motor device |
| CN104052188A (en) * | 2014-07-02 | 2014-09-17 | 上海翱锐控制系统有限公司 | Precise electric cylinder |
| CN205534082U (en) * | 2016-04-08 | 2016-08-31 | 山东博特精工股份有限公司 | Vice high dustproof combined seal ring of ball |
| CN205929547U (en) * | 2016-07-28 | 2017-02-08 | 广州纽蓝客精密机床有限公司 | Complete electric servo bender headstock with self -lubricate and sealing device |
| CN206943356U (en) * | 2017-06-28 | 2018-01-30 | 广州纽蓝客精密机床有限公司 | A kind of full-sealed high-speed type digital controlled servo bending-machine main spindle box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692113A (en) * | 2020-12-14 | 2021-04-23 | 瑞铁机床（苏州）股份有限公司 | Multi-drive combined bending machine |
| CN112692113B (en) * | 2020-12-14 | 2021-10-26 | 瑞铁机床（苏州）股份有限公司 | Multi-drive combined bending machine |
| WO2022127501A1 (en) * | 2020-12-14 | 2022-06-23 | 瑞铁机床（苏州）股份有限公司 | Multi-drive combined bending machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170915 |