CN104759641A - Machine tool headstock - Google Patents
Machine tool headstock Download PDFInfo
- Publication number
- CN104759641A CN104759641A CN201410007853.8A CN201410007853A CN104759641A CN 104759641 A CN104759641 A CN 104759641A CN 201410007853 A CN201410007853 A CN 201410007853A CN 104759641 A CN104759641 A CN 104759641A
- Authority
- CN
- China
- Prior art keywords
- ring
- machine tool
- bearing back
- scrobicular ring
- bearing baffle
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention relates to the technical field of machine tools, and aims to provide a machine tool headstock. The machine tool headstock comprises a box body, a spindle, a front bearing baffle ring, an outer protecting bush, a step type rear bearing baffle ring, a rear cover, a drive wheel and a drive wheel lock nut. The spindle is provided with a front bearing blocking section and a front blocking section and is pivoted with the box body. The inner diameter part of the front bearing baffle ring is in clearance fit with the front bearing blocking section. The outer protecting bush presses the front bearing baffle ring and is connected with the box body. The rear cover presses the big end of the step type rear bearing baffle ring. The front end of the drive wheel presses the small end of the step type rear bearing baffle ring, and the drive wheel is connected with the spindle. The drive wheel lock nut is in threaded connection with the spindle. At least one front inward-concave ring is arranged on the inner side of the front bearing baffle ring in a surrounding mode. At least one rear concave ring is arranged on the rear end face of the front blocking section. Front convex rings and outer convex rings are arranged on the front face of the front bearing baffle ring. The number of the front convex rings is the same as that of the rear concave rings, and the front convex rings are matched with the rear concave rings. The inner diameter of the outer convex rings is matched with the outer diameter of the front blocking section. According to the machine tool headstock, the spindle and the bearing baffle rings are well sealed, so that cooling liquid is not likely to enter the spindle and the bearing baffle rings.
Description
Technical field
The present invention relates to machine tool technology field, especially a kind of machine tool head box.
Background technology
Chinese Patent Application No.: the utility model of 200920115510.8 relates to a kind of Digit Control Machine Tool lathe headstock, this Digit Control Machine Tool lathe headstock, comprise casing, upper rear bearing, lower rear bearing, upper rear bearing depression bar, lower rear bearing depression bar, its design feature is: described casing is also provided with taper roll bearing and lower taper roll bearing, upper taper roll bearing and the upperpush rod be arranged on casing match, and lower taper roll bearing matches with pressing down soon with the down-pressed pole be arranged on casing.There is main shaft and be set in the deficiency sealing poor cooling fluid etc. between the fore bearing back-up ring outside main shaft and easily enter in the headstock of traditional Digit Control Machine Tool, therefore, design the machine tool head box sealing better cooling fluid etc. between a kind of main shaft and end ring and not easily enter, become problem demanding prompt solution.
Summary of the invention
There is main shaft and be set in the deficiency sealing poor cooling fluid etc. between the fore bearing back-up ring outside main shaft and easily enter in the headstock that the object of the invention is to overcome current Digit Control Machine Tool, provides the machine tool head box sealing better cooling fluid etc. between a kind of main shaft and end ring and not easily enter.
Concrete technical scheme of the present invention is:
A kind of machine tool head box, comprise casing, be provided with fore bearing gear section and the fore bearing back-up ring being positioned at the main shaft of the front stop Duan Bingyu casing on front side of fore bearing gear section by bearing hinge joint, internal diameter and fore bearing keep off section matched in clearance, push down fore bearing back-up ring and the oversheath be connected with casing, internal diameter and gap of main reinforcement coordinate notch cuttype rear bearing back-up ring, to be set in outside notch cuttype rear bearing back-up ring small end and notch cuttype rear bearing back-up ring small end is pushed down and the drive be connected with main shaft and the drive locking nut be connected with spindle thread in the bonnet be connected with casing, front end; The inner side of described fore bearing back-up ring is arranged with at least one front interior scrobicular ring; The rear end face of front stop section is provided with at least one rear scrobicular ring; The front end face of fore bearing back-up ring is provided with number and that with rear scrobicular ring mate before bulge loop and internal diameter with front stop section external diameter mate outer bulge loop identical with rear scrobicular ring number.By form multiple of front interior scrobicular ring, rear scrobicular ring, front bulge loop and outer bulge loop and the sealing system of tortuous path, can effectively intercept cooling fluid etc. and enter in headstock; Seal better cooling fluid etc. between this machine tool head box main shaft and end ring not easily to enter.
As preferably, described drive comprises front end and pushes down notch cuttype rear bearing back-up ring small end and synchronizing wheel rear end is pushed down and the multi-wedge belt pulley be connected with main shaft in the synchronizing wheel be connected with main shaft and front end.Synchronizing wheel conveniently connects encoder; Multi-wedge belt pulley driving torque is large, and vibrating noise is little.
As preferably, described drive locking nut comprises nut main body and several lock-screws; The inner side of nut main body is arranged with inner groove; The outside of nut main body is arranged with outer groove; The rear end of multi-wedge belt pulley is provided with counterbore; Nut main body is arranged in counterbore and is connected with spindle thread; Several lock-screws are uniformly distributed along the circumference; The front end of the screw rod of lock-screw is threaded with nut main body through inner groove and outer groove.After lock-screw is tightened, drive locking nut produces elastic deformation, and the drive axial locking be set in outside main shaft is not easily loosened; Nut main body is arranged in counterbore makes compact conformation.
As preferably, described front interior scrobicular ring to be the angle of the axis of hypotenuse and fore bearing back-up ring the be zigzag scrobicular ring of 25 degree to 35 degree.The effects such as cooling fluid are intercepted better through test zigzag scrobicular ring.
As preferably, the inner side of described bonnet is arranged with scrobicular ring in after at least one; Scrobicular ring to be the angle of the axis of hypotenuse and bonnet the be zigzag scrobicular ring of 25 degree to 35 degree in rear.Rear interior scrobicular ring can effectively intercept dust etc. and enter in headstock between bonnet and notch cuttype rear bearing back-up ring.
As preferably, the bottom of described oversheath is provided with fluid hole.The cooling fluid entered between oversheath and front stop section can be discharged from fluid hole.
Compared with prior art, the invention has the beneficial effects as follows: by form multiple of front interior scrobicular ring, rear scrobicular ring, front bulge loop and outer bulge loop and the sealing system of tortuous path, can effectively intercept cooling fluid etc. and enter in headstock; Seal better cooling fluid etc. between this machine tool head box main shaft and end ring not easily to enter.Synchronizing wheel conveniently connects encoder; Multi-wedge belt pulley driving torque is large, and vibrating noise is little.After lock-screw is tightened, drive locking nut produces elastic deformation, and the drive axial locking be set in outside main shaft is not easily loosened; Nut main body is arranged in counterbore makes compact conformation.The effects such as cooling fluid are intercepted better through test zigzag scrobicular ring.Rear interior scrobicular ring can effectively intercept dust etc. and enter in headstock between bonnet and notch cuttype rear bearing back-up ring.The cooling fluid entered between oversheath and front stop section can be discharged from fluid hole.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the enlarged drawing at A place in Fig. 1.
In figure: casing-1, main shaft-2, fore bearing gear section-21, front stop section-22, rear scrobicular ring-23, fore bearing back-up ring-3, interior scrobicular ring-31, front bulge loop-32, outer bulge loop-33, oversheath-4, fluid hole-41, notch cuttype rear bearing back-up ring-5, bonnet-6, rear interior scrobicular ring-61, drive-7, synchronizing wheel-71, multi-wedge belt pulley-72, counterbore-73, drive locking nut-8, nut main body-81, lock-screw-82, inner groove-83, outer groove-84.
Detailed description of the invention
Below in conjunction with shown in accompanying drawing, the present invention is described further.
As shown in Figure 1: a kind of machine tool head box, comprise casing 1, the front stop section 22 that there is fore bearing gear section 21 and be positioned on front side of fore bearing gear section 21 and with the main shaft 2 of casing 1 by bearing hinge joint, internal diameter and fore bearing keep off the fore bearing back-up ring 3 of section 21 matched in clearance, push down fore bearing back-up ring 3 and the oversheath 4 be connected by screw with casing 1, the notch cuttype rear bearing back-up ring 5 of internal diameter and main shaft 2 matched in clearance, be set in the outer and bonnet 6 be connected by screw with casing 1 of notch cuttype rear bearing back-up ring 5 small end, be set in notch cuttype rear bearing back-up ring 5 small end outer and the drive 7 be connected with main shaft 2 and the drive locking nut 8 be threaded with main shaft 2, scrobicular ring 31 in before the interior gusset of described fore bearing back-up ring 3 has two, scrobicular ring 23 after the rear end face of front stop section 22 has one, the front end face of fore bearing back-up ring 3 has an outer bulge loop 33 coordinated with front stop section 22 crest clearance with front bulge loop 32 and the internal diameter of rear scrobicular ring 23 matched in clearance.
In the present embodiment, described drive 7 comprises front end and pushes down notch cuttype rear bearing back-up ring 5 small end and synchronizing wheel 71 rear end is pushed down and the multi-wedge belt pulley 72 be connected with main shaft 2 key in the synchronizing wheel 71 be connected with main shaft 2 key and front end.
Described drive locking nut 8 comprises nut main body 81 and six lock-screws 82; The interior gusset of nut main body 81 has inner groove 83; The outer gusset of nut main body 81 has outer groove 84; The rear end of multi-wedge belt pulley 72 has counterbore 73; Nut main body 81 is arranged in counterbore 73 and is threaded with main shaft 2; Six lock-screws 82 are uniformly distributed along the circumference; The front end of the screw rod of lock-screw 82 is threaded with nut main body 81 through inner groove 83 and outer groove 84.
Described front interior scrobicular ring 31 to be the angle of the axis of hypotenuse and fore bearing back-up ring 3 the be zigzag scrobicular ring of 30 degree.
Scrobicular ring 61 in after the interior gusset of described bonnet 6 has two; Scrobicular ring 61 to be the angle of the axis of hypotenuse and bonnet 6 the be zigzag scrobicular ring of 30 degree in rear.
The bottom of described oversheath 4 has fluid hole 41.
The invention has the beneficial effects as follows: by form multiple of front interior scrobicular ring, rear scrobicular ring, front bulge loop and outer bulge loop and the sealing system of tortuous path, can effectively intercept cooling fluid etc. and enter in headstock; Seal better cooling fluid etc. between this machine tool head box main shaft and end ring not easily to enter.Synchronizing wheel conveniently connects encoder; Multi-wedge belt pulley driving torque is large, and vibrating noise is little.After lock-screw is tightened, drive locking nut produces elastic deformation, and the drive axial locking be set in outside main shaft is not easily loosened; Nut main body is arranged in counterbore makes compact conformation.The effects such as cooling fluid are intercepted better through test zigzag scrobicular ring.Rear interior scrobicular ring 61 can effectively intercept dust etc. and enter in headstock between bonnet and notch cuttype rear bearing back-up ring.The cooling fluid entered between oversheath and front stop section can be discharged from fluid hole.
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.All like this to the apparent amendment of the technical staff in described field, by be included in this claim scope within.
Claims (6)
1. a machine tool head box, comprise casing, be provided with fore bearing gear section and the fore bearing back-up ring being positioned at the main shaft of the front stop Duan Bingyu casing on front side of fore bearing gear section by bearing hinge joint, internal diameter and fore bearing keep off section matched in clearance, push down fore bearing back-up ring and the oversheath be connected with casing, internal diameter and gap of main reinforcement coordinate notch cuttype rear bearing back-up ring, push down the large end of notch cuttype rear bearing back-up ring and the bonnet be connected with casing, be set in notch cuttype rear bearing back-up ring small end and the drive be connected with main shaft and the drive locking nut be connected with spindle thread outward; It is characterized in that, the inner side of described fore bearing back-up ring is arranged with at least one front interior scrobicular ring; The rear end face of front stop section is provided with at least one rear scrobicular ring; The front end face of fore bearing back-up ring is provided with number and that with rear scrobicular ring mate before bulge loop and internal diameter with front stop section external diameter mate outer bulge loop identical with rear scrobicular ring number.
2. machine tool head box according to claim 1, is characterized in that: described drive comprises front end and pushes down notch cuttype rear bearing back-up ring small end and synchronizing wheel rear end is pushed down and the multi-wedge belt pulley be connected with main shaft in the synchronizing wheel be connected with main shaft and front end.
3. machine tool head box according to claim 2, is characterized in that: described drive locking nut comprises nut main body and several lock-screws; The inner side of nut main body is arranged with inner groove; The outside of nut main body is arranged with outer groove; The rear end of multi-wedge belt pulley is provided with counterbore; Nut main body is arranged in counterbore and is connected with spindle thread; Several lock-screws are uniformly distributed along the circumference; The front end of the screw rod of lock-screw is threaded with nut main body through inner groove and outer groove.
4. the machine tool head box according to claim 1 or 2 or 3, is characterized in that: described front interior scrobicular ring to be the angle of the axis of hypotenuse and fore bearing back-up ring the be zigzag scrobicular ring of 25 degree to 35 degree.
5. the machine tool head box according to claim 1 or 2 or 3, is characterized in that: the inner side of described bonnet is arranged with at least one rear interior scrobicular ring; Scrobicular ring to be the angle of the axis of hypotenuse and bonnet the be zigzag scrobicular ring of 25 degree to 35 degree in rear.
6. the machine tool head box according to claim 1 or 2 or 3, is characterized in that: the bottom of described oversheath is provided with fluid hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007853.8A CN104759641A (en) | 2014-01-08 | 2014-01-08 | Machine tool headstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007853.8A CN104759641A (en) | 2014-01-08 | 2014-01-08 | Machine tool headstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104759641A true CN104759641A (en) | 2015-07-08 |
Family
ID=53641916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410007853.8A Pending CN104759641A (en) | 2014-01-08 | 2014-01-08 | Machine tool headstock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104759641A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480353A (en) * | 2019-08-07 | 2019-11-22 | 盐城工学院 | A kind of drilling and chamfer machining integration machine tool and its processing method |
-
2014
- 2014-01-08 CN CN201410007853.8A patent/CN104759641A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480353A (en) * | 2019-08-07 | 2019-11-22 | 盐城工学院 | A kind of drilling and chamfer machining integration machine tool and its processing method |
| CN110480353B (en) * | 2019-08-07 | 2021-06-25 | 盐城工学院 | Drilling and chamfering integrated machine tool and machining method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |