CN207086927U - A kind of tailstock tool live center - Google Patents
A kind of tailstock tool live center Download PDFInfo
- Publication number
- CN207086927U CN207086927U CN201720748661.1U CN201720748661U CN207086927U CN 207086927 U CN207086927 U CN 207086927U CN 201720748661 U CN201720748661 U CN 201720748661U CN 207086927 U CN207086927 U CN 207086927U
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- tailstock
- live center
- afterbody
- connecting portion
- transition part
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Abstract
A kind of tailstock tool live center, tailstock including lathe, an independent centre head and an independent tail spindle, the housing of live center is used as by the use of tailstock, tail spindle is located in the inner chamber of tailstock, tail spindle includes shaft end, transition part and the afterbody being sequentially connected, one end of shaft end is provided with the cavity for being used for installing centre head, and the rear end of shaft end is provided with interior raceway, cylinder roller bearing is provided with interior raceway；The front end of transition part is provided with thrust roller bearing, and the rear end of transition part is provided with the sealing adjusting sleeve for extending to afterbody, needle bearing and deep groove ball bearing are also equipped with afterbody.The utility model changes existing top structure type, using the tailstock of lathe directly as the housing of live center, is greatly simplified structure, processing, assembly process process are good, have saved processing, assembling total cost, have improved efficiency, bearing capacity reaches 30 tons.
Description
Technical field
It the utility model is related to top technical field, and in particular to a kind of tailstock tool live center.
Background technology
Lathe main in manufacturing industry will carry out the lathe of turnery processing using lathe tool to rotational workpieces, be mainly used in processing
Axle, disk, set and other there is the workpiece of rotary surface, its structure is broadly divided into：Main spindle box, tailstock, feed rod, leading screw, slip crate,
Lathe bed, feed box, knife rest.
Tailstock therein is one of important component of lathe, and tailstock is arranged on the right guide rail of lathe, can install screw tap
Tapping tool, cylinder facing threading tool processing internal and external screw thread；Tailstock body can make along tailstock guide it is longitudinally adjusted move,
Then tailstock closing handle is depressed, tailstock is clamped in required position, shaking tailstock handwheel can realize to the holding out against of workpiece, pine
The length feed opened or cut workpiece；Tailstock can also install it is top, to support the right-hand member of longer workpiece, peace
Drill bit, reamer are filled, is processed.The top installation with tailstock in the prior art is generally：Tail spindle is loaded top
In seat shell, then seat shell is arranged in the tailstock of lathe, it is necessary to additionally install seat shell, increase gross weight and use into
This, and add assembly difficulty.
Utility model content
The purpose of this utility model is to provide a kind of tailstock tool live center, and tail spindle is directly loaded to the tailstock set of lathe
In cylinder, the installation of seat shell is eliminated, has saved processing, assembling total cost.
Used technical scheme is the utility model to achieve the above object：A kind of tailstock tool live center, including machine
Tailstock, an independent centre head and an independent tail spindle for bed, by the use of tailstock as the housing of live center,
Tail spindle is located in the inner chamber of tailstock, and described tail spindle includes shaft end, transition part and the afterbody being sequentially connected, shaft end
The one end in portion is provided with the cavity for being used for installing centre head, and the rear end of shaft end is provided with interior raceway, cylindrical roller is provided with interior raceway
Bearing；The front end of transition part is provided with thrust roller bearing, and the rear end of transition part is provided with the sealing adjusting sleeve for extending to afterbody,
Needle bearing and deep groove ball bearing are also equipped with afterbody.
Wherein, the external diameter of shaft end is more than the external diameter of transition part, and the external diameter of transition part is more than the external diameter of afterbody, and afterbody is set
There is a boss for installing deep groove ball bearing, the external diameter of boss is less than the external diameter of afterbody, after the outer face of boss is fixedly connected with
Gland.
Further, also it is sequentially installed with adjustment spacer on boss and disk spring, disk spring can be by load on
Onto the end face of deep groove ball bearing, adjust the end face of spacer and the end face of needle bearing and abut against.
Wherein, the front end of shaft end is provided with convex shoulder I, and the outer peripheral face of convex shoulder I, which is provided with to fix with the end of tailstock, to be connected
The preceding gland connect, outside framework oil seal I is provided between preceding gland and convex shoulder I, O-ring seals are provided between preceding gland and tailstock.
Wherein, described centre head includes conehead and taper shank, is connected between conehead and taper shank using arc transition, wherein,
The side face of taper shank is provided with the convex shoulder II being fixedly connected with convex shoulder I.
Preferably, the cone angle of conehead is 60 ° or 75 °, and the taper of taper shank is 1：4.
Wherein, the inner chamber of tailstock be sequentially provided with for cylinder roller bearing is installed step I, for installed thrust roll
The step II of sub- bearing and the step III for installing sealing adjusting sleeve.
Wherein, sealing adjusting sleeve is made up of connecting portion I and connecting portion II, connecting portion I close to shaft end, connecting portion I it is interior
Outside framework oil seal II is provided between wall and transition part, and one end of connecting portion I is provided with lubricant reservoir, the outer wall and tailstock of connecting portion I
O-ring seals are installed between the inner chamber of sleeve；Between the inwall and transition part of connecting portion II, the outer wall and tailstock of connecting portion II
Coordinate between the inner chamber of sleeve in gap.
In the utility model, the central axis of centre head, tail spindle and tailstock three, which overlaps, to be set.
Beneficial effect：（1）, the utility model change existing top structure type, it is straight using the tailstock of lathe
The housing as live center is connect, is greatly simplified structure, processing, assembly process process are good, have saved processing, assembling total cost, have carried
High efficiency, bearing capacity reach 30 tons.
（2）, the outside framework oil seal I and outside framework oil seal II that set, cylinder roller bearing and thrust roller bearing is in sealing
State, prevent the leakage of lubricating oil；Outside framework oil seal I and O-ring seals can prevent impurity from passing through top axial end gap or top
Contact surface between spivot and tailstock and enter in bearing chamber, improve service life.
（3）, between tail spindle and tailstock installation sealing adjusting sleeve, the tailstock of existing lathe is fitted
For the structure of live center, ensure the assembly precision of the two；Disk spring is carried between deep groove ball bearing and needle bearing, energy
Enough tail spindle is pressed in all the time on thrust roller bearing, improve the precision in bearing fit face.
（4）, centre head and tail spindle be detachably connected, be easy to the dismounting of centre head；After centre head is damaged or worn out, only
Replaceable centre head, reduces cost.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model；
Fig. 2 is the schematic diagram of tail spindle in Fig. 1；
Fig. 3 is the schematic diagram of centre head in Fig. 1.
Reference：1st, tailstock；2nd, centre head, 20, conehead, 21, taper shank, 210, convex shoulder II；3rd, tail spindle, 30,
Shaft end, 300, cavity, 301, convex shoulder I, 31, transition part, 32, afterbody, 320, boss；4th, cylinder roller bearing；5th, thrust is rolled
Sub- bearing；6th, seal adjusting sleeve, 60, connecting portion I, 600, lubricant reservoir, 61, connecting portion II；7th, needle bearing, 8, deep-groove ball axle
Hold, 9, adjustment spacer, 10, disk spring, 11, preceding gland, 12, rear pressing cover, 13, outside framework oil seal I, 14, O-ring seals, 15, platform
Rank I, 16, step II, 17, step III, 18, outside framework oil seal II.
Embodiment
Technological means, creation characteristic and the purpose reached to realize the utility model readily appreciate, with reference to
Specific schematic diagram, the utility model is expanded on further, but the utility model scope claimed is not limited to specific reality
Apply the scope described in mode.
A kind of tailstock tool live center, as shown in figure 1,1, and of independent centre head 2 of tailstock including lathe
One independent tail spindle 3, is located in the inner chamber of tailstock 1 by the use of tailstock 1 as the housing of live center, tail spindle 3,
The central axis of centre head 2, tail spindle 3 and the three of tailstock 1, which overlaps, to be set.As shown in Fig. 2 tail spindle 3 includes connecting successively
Shaft end 30, transition part 31 and the afterbody 32 connect, the external diameter of shaft end 30 are more than the external diameter of transition part 31, the external diameter of transition part 31
More than the external diameter of afterbody 32.
Wherein, the rear end of shaft end 30 is provided with interior raceway, and cylinder roller bearing 4 is provided with interior raceway；Before transition part 31
End is provided with thrust roller bearing 5, and the rear end of transition part 31 is provided with the sealing adjusting sleeve 6 for extending to afterbody 32.Tailstock 1
Inner chamber be sequentially provided with step I 15, the step II 16 for installed thrust roller bearing 5 for installing cylinder roller bearing 4
And for installing the step III 17 of sealing adjusting sleeve 6.
Wherein, needle bearing 7 and deep groove ball bearing 8 are also equipped with afterbody 32, afterbody 32, which is provided with, to be used to install deep-groove ball
The boss 320 of bearing 8, the external diameter of boss 320 are less than the external diameter of afterbody 32, and the outer face of boss 320 is fixedly connected with rear pressing cover
12, adjustment spacer 9 is also sequentially installed with boss 320 and disk spring 10, disk spring 10 can be by load ons to zanjon
On the end face of ball bearing 8, the end face and the end face of needle bearing 7 that adjust spacer 9 abut against.
The interior raceway of cylinder roller bearing 4, needle bearing 7 is directly directly opened on tail spindle 3 by the utility model, top
The rear portion of axle 3 is supported using needle bearing 7 and deep groove ball bearing 8, makes the shaft end 30 of tail spindle 3 and the diameter of afterbody 32
Can suitably it increase, so as to improve the rigidity of live center and precision, running accuracy reaches 0.005mm.
As shown in Fig. 2 the front end of shaft end 30 is provided with convex shoulder I 301, as shown in figure 1, the outer peripheral face of convex shoulder I 301 is provided with
The preceding gland 11 being fixedly connected with the end of tailstock 1, outside framework oil seal I 13 is provided between preceding gland 11 and convex shoulder I 301, it is preceding
O-ring seals are provided between gland 11 and tailstock 1.
As shown in figure 3, centre head 2 includes conehead 20 and taper shank 21, connected between conehead 20 and taper shank 21 using arc transition
Connect.The cone angle of conehead 20 is 60 ° or 75 °, and the taper of taper shank 21 is 1：4.One end of shaft end 30, which is provided with, to be used to install centre head
2 cavity 300, the side face of taper shank 21 are provided with the convex shoulder II 210 being fixedly connected with convex shoulder I 301, convex shoulder I 301 and convex shoulder II
The screwed hole of insertion is correspondingly provided with 210, centre head 2 is connected by screw with tail spindle 3.In the utility model, preceding gland
11 are connected by screw with tailstock 1, and rear pressing cover 12 is connected by screw with boss 320.
As shown in figure 1, sealing adjusting sleeve 6 is made up of connecting portion I 60 and connecting portion II 61, connecting portion I 60 is close to shaft end
30, outside framework oil seal II 18 is provided between the inwall and transition part 31 of connecting portion I 60, and one end of connecting portion I 60 is provided with lubricating oil
Chamber 600, O-ring seals are installed between the outer wall of connecting portion I 60 and the inner chamber of tailstock 1；The inwall of connecting portion II 61 with
Coordinate between transition part 31, between the inner chamber of the outer wall of connecting portion II 61 and tailstock 1 in gap.
Claims (9)
- A kind of 1. tailstock tool live center, it is characterised in that：Tailstock including lathe（1）, an independent centre head（2） With an independent tail spindle（3）, utilize tailstock（1）As the housing of live center, tail spindle（3）It is located at tailstock （1）Inner chamber in, described tail spindle（3）Including the shaft end being sequentially connected（30）, transition part（31）And afterbody（32）, shaft end Portion（30）One end be provided be used for centre head is installed（2）Cavity（300）, shaft end（30）Rear end be provided with interior raceway, interior rolling Cylinder roller bearing is provided with road（4）；Transition part（31）Front end thrust roller bearing is installed（5）, transition part（31）After End, which is provided with, extends to afterbody（32）Sealing adjusting sleeve（6）, afterbody（32）On be also equipped with needle bearing（7）With deep-groove ball axle Hold（8）.
- A kind of 2. tailstock tool live center according to claim 1, it is characterised in that：Shaft end（30）External diameter be more than Cross portion（31）External diameter, transition part（31）External diameter be more than afterbody（32）External diameter, and afterbody（32）Provided with for installing zanjon Ball bearing（8）Boss（320）, boss（320）External diameter be less than afterbody（32）External diameter, boss（320）Outer face fix It is connected with rear pressing cover（12）.
- A kind of 3. tailstock tool live center according to claim 2, it is characterised in that：Boss（320）On also install successively There is adjustment spacer（9）And disk spring（10）, disk spring（10）Can be by load on to deep groove ball bearing（8）End face On, adjust spacer（9）End face and needle bearing（7）End face abut against.
- A kind of 4. tailstock tool live center according to claim 1, it is characterised in that：Shaft end（30）Front end be provided with it is convex Shoulder I（301）, convex shoulder I（301）Outer peripheral face be provided with and tailstock（1）The preceding gland that is fixedly connected of end（11）, preceding pressure Lid（11）With convex shoulder I（301）Between be provided with outside framework oil seal I（13）, preceding gland（11）With tailstock（1）Between be provided with O shapes it is close Seal.
- A kind of 5. tailstock tool live center according to claim 4, it is characterised in that：Described centre head（2）Including cone Head（20）And taper shank（21）, conehead（20）With taper shank（21）Between using arc transition connect, wherein, taper shank（21）Side face on Provided with convex shoulder I（301）The convex shoulder II being fixedly connected（210）.
- A kind of 6. tailstock tool live center according to claim 5, it is characterised in that：Conehead（20）Cone angle for 60 ° or 75 °, taper shank（21）Taper be 1：4.
- A kind of 7. tailstock tool live center according to claim 1, it is characterised in that：Tailstock（1）Inner chamber successively Provided with for installing cylinder roller bearing（4）Step I（15）, for installed thrust roller bearing（5）Step II（16）With And seal adjusting sleeve for installing（6）Step III（17）.
- A kind of 8. tailstock tool live center according to claim 1, it is characterised in that：Seal adjusting sleeve（6）By connecting portion I （60）With connecting portion II（61）Form, connecting portion I（60）Close to shaft end（30）, connecting portion I（60）Inwall and transition part （31）Between be provided with outside framework oil seal II（18）, and connecting portion I（60）One end be provided with lubricant reservoir（600）, connecting portion I（60）'s Outer wall and tailstock（1）Inner chamber between O-ring seals are installed；Connecting portion II（61）Inwall and transition part（31）It Between, connecting portion II（61）Outer wall and tailstock（1）Inner chamber between in gap coordinate.
- A kind of 9. tailstock tool live center according to claim 1, it is characterised in that：Described centre head（2）, tail spindle （3）And tailstock（1）The central axis of three, which overlaps, to be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720748661.1U CN207086927U (en) | 2017-06-26 | 2017-06-26 | A kind of tailstock tool live center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720748661.1U CN207086927U (en) | 2017-06-26 | 2017-06-26 | A kind of tailstock tool live center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207086927U true CN207086927U (en) | 2018-03-13 |
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ID=61552514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720748661.1U Active CN207086927U (en) | 2017-06-26 | 2017-06-26 | A kind of tailstock tool live center |
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| Country | Link |
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| CN (1) | CN207086927U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548661A (en) * | 2018-03-26 | 2018-09-18 | 西安工业大学 | Axial revolution measures loading device |
| CN109954892A (en) * | 2018-11-01 | 2019-07-02 | 湖大海捷(湖南)工程技术研究有限公司 | A kind of tail stock for machine tool of top rotational structure |
| CN110357011A (en) * | 2018-04-11 | 2019-10-22 | 南京恒昌包装机械有限公司 | A kind of pressing device |
| CN111070091A (en) * | 2019-12-25 | 2020-04-28 | 广州市昊志机电股份有限公司 | Movable center tailstock, tailstock system and machine tool |
| CN112059215A (en) * | 2020-09-10 | 2020-12-11 | 浙江华特数控机床有限公司 | Tailstock of numerical control machine tool |
-
2017
- 2017-06-26 CN CN201720748661.1U patent/CN207086927U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548661A (en) * | 2018-03-26 | 2018-09-18 | 西安工业大学 | Axial revolution measures loading device |
| CN108548661B (en) * | 2018-03-26 | 2024-02-13 | 西安工业大学 | Axial rotation measuring and loading device |
| CN110357011A (en) * | 2018-04-11 | 2019-10-22 | 南京恒昌包装机械有限公司 | A kind of pressing device |
| CN110357011B (en) * | 2018-04-11 | 2024-04-26 | 南京恒昌包装机械有限公司 | Capping device |
| CN109954892A (en) * | 2018-11-01 | 2019-07-02 | 湖大海捷(湖南)工程技术研究有限公司 | A kind of tail stock for machine tool of top rotational structure |
| CN111070091A (en) * | 2019-12-25 | 2020-04-28 | 广州市昊志机电股份有限公司 | Movable center tailstock, tailstock system and machine tool |
| CN112059215A (en) * | 2020-09-10 | 2020-12-11 | 浙江华特数控机床有限公司 | Tailstock of numerical control machine tool |
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