CN202411843U - Machine tool and workbench device thereof - Google Patents
Machine tool and workbench device thereof Download PDFInfo
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- CN202411843U CN202411843U CN2011204841296U CN201120484129U CN202411843U CN 202411843 U CN202411843 U CN 202411843U CN 2011204841296 U CN2011204841296 U CN 2011204841296U CN 201120484129 U CN201120484129 U CN 201120484129U CN 202411843 U CN202411843 U CN 202411843U
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- positioning element
- workbench
- base
- table device
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Abstract
The utility model provides a workbench device and a machine tool. The workbench device comprises a base, a workbench, a crossed conical roller bearing, a first positioning component and a second positioning component, wherein the workbench is positioned above the base, and rotates relative to the base; the crossed conical roller bearing comprises an outer ring and an inner ring; the first positioning component is fixedly arranged on the workbench; the second positioning component is fixedly arranged on the base; one of the first positioning component and the second positioning component is used for positioning the outer ring of the bearing; and the other of the first positioning component and the second positioning component is used for positioning the inner ring of the bearing. The workbench device is easy to install and has a stable structure, high rigidity and antidumping capability, and high-accuracy ending beat can be obtained, so that the workpiece processing accuracy is ensured. Moreover, the workbench device has the advantages of convenience for adjusting, high generality, high production efficiency, saving in cost, and the like.
Description
Technical field
The utility model relates generally to machine tool field, particularly a kind of table device of lathe, and the lathe that comprises this table device.
Background technology
Along with the development of the big production of modernization, national manufacturing industry more and more depends on modern production equipment, and the lathe as manufacturing industry production equipment core more and more comes into one's own naturally.The rigidity of lathe and precision play decisive role to the machining accuracy of workpiece.
With the vertical lathe is example, and the rigidity of its workbench and the end face run-out of workbench are the keys of decision work table rotation precision, thereby has also determined the machining accuracy of workpiece to be machined.Therefore, improve the rigidity and the end face run-out of workbench, can improve the machining accuracy workpiece quality of workpiece, and then enhance productivity, promote the development of national equipment manufacture.
In the prior art, the mode that the main shaft of vertical lathe workbench generally all adopts thrust ball bearing and double row tapered roller axis of a cylinder to hold combination constitutes.This kind structure is the typical case relatively, and thrust ball bearing wherein carries axial force, double row tapered roller axis of a cylinder carrying radial load.
But there is certain defective in this structure.Lathe for different size; The versatility of thrust ball bearing is relatively poor; Be the lathe that a kind of thrust ball bearing of specification can only be applicable to corresponding specification, its reason is that the bearing capacity and the limit speed of thrust ball bearing has certain limitation, is used for little lathe like the thrust ball bearing that specification is bigger; Satisfy though carry, rotating speed can not satisfy; Thrust ball bearing as specification is less is used for big lathe, though rotating speed satisfies, carries and can not satisfy.
In addition, the mounting process more complicated that the double row tapered roller axis of a cylinder holds be difficult to guarantee its end face run-out precision, and the wearing and tearing bad reparation in back, thereby can be correspondingly the machining accuracy of workpiece be impacted.
The utility model content
The utility model aims to provide a kind of table device of lathe, and this table device can be avoided the shortcoming that the prior art versatility is poor, mounting process is complicated, and can guarantee the end face run-out precision of workbench.
The table device of the utility model comprises:
Base;
Workbench, said workbench are positioned at the base top and turn round with respect to base;
The crossed-circle taper roller bearing, said crossed-circle taper roller bearing comprises outer ring and inner ring;
First positioning element and second positioning element; Said first positioning element is fixedly set in workbench; Said second positioning element is fixedly set in base; One of them of said first positioning element and second positioning element is to the location, outer ring of said bearing, and another is to the inner ring location of said bearing.
Further, said first positioning element comprises:
Gear ring, the engagement of said gear ring and transmission system, said gear ring comprises first locating surface to the upside location of the outer ring of said bearing, and to second locating surface of the location, the outside of the outer ring of said bearing;
Lower platen, said lower platen are fixed in the gear ring below, and said lower platen is to the downside location of the outer ring of said bearing.
Further, said second positioning element comprises:
Supporting seat, said supporting seat are fixed in base top, and said supporting seat comprises the 3rd locating surface to the downside location of the inner ring of said bearing, and to the 4th locating surface of the location, inboard of the inner ring of said bearing;
Top board, said top board are fixed in the supporting seat top, and said supporting seat is to the upside location of the inner ring of said bearing.
Further, said second positioning element also comprises:
Adjusting pad, said adjusting pad are arranged between said top board and the said supporting seat, and said adjusting pad is made up of the polylith fanning strip.
Further, offer notch on said the 4th locating surface, the part of said notch upside and the inboard top loose fit of the inner ring of said bearing, the part of said notch downside and the inboard bottom tight fit of the inner ring of said bearing.
Further, also comprise:
Central shaft, said central shaft turns round with said workbench synchronously;
Encoder, an end of said central shaft is arranged on the rotary part of encoder, and the on-rotatably moving part of said encoder fixedly installs.
Further, also comprise:
Connecting plate, said connecting plate are fixedly connected between the workbench and first positioning element, and the center of said connecting plate offers centre bore, and said central shaft is arranged in the said centre bore, and said central shaft turns round with said connecting plate.
Further; One of them of the said connecting plate and second positioning element is provided with first annular boss; Another is provided with first annular groove; Said first annular boss is arranged in said first annular groove, and first annular boss of said second positioning element or first annular groove below are provided with first spill port.
Further; One of them of said base and workbench is provided with second annular boss; Another is provided with second annular groove; Said second annular boss is arranged in said second annular groove, and second annular boss of said base or second annular groove below are provided with second spill port.
Another aspect of the utility model also provides a kind of lathe, and this lathe comprises aforesaid table device.
The utility model closely cooperates through first positioning element and second positioning element; The crossed-circle taper roller bearing can be stably mounted; It installs simple, Stability Analysis of Structures; Have rigidity and antidumping power preferably, and can obtain the higher end face run-out of precision, thereby guaranteed the workpiece machining accuracy; In addition, the utility model can be adjusted the assemblage gap and the pretightning force of top board and bearing inner race upside, and can be convenient to install adjustment so that the 4th locating surface has different tolerance fit with the bearing inner race inboard; And the bearing of the same model of the utility model can be used for the different lathe of several moneys, and its versatility is stronger; In addition, the utility model also has advantages such as production efficiency height, saving cost.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structure chart of the table device of the utility model one embodiment;
Fig. 2 is the enlarged drawing of the a-quadrant among Fig. 1;
Fig. 3 is the structure chart of the adjusting pad of the utility model one embodiment.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Figure 1 is the structure chart of the table device of the utility model one embodiment, and this workbench 2 is used to carry workpiece so that it is processed.As can be seen from Figure 1, the table device of the utility model comprises base 1, workbench 2, crossed-circle taper roller bearing 3, first positioning element and second positioning element at least.
Wherein workbench 2 is positioned at base 1 top and turns round with respect to base 1, and this workbench 2 rotates along vertical center in the horizontal direction, and the structure of base 1 and workbench 2 can be with reference to prior art, and this paper repeats no more at this.
Crossed-circle taper roller bearing 3 comprises outer ring and inner ring; The rolling element of this crossed-circle taper roller bearing 3 is a taper roller, and adjacent rollers can become 90 degree cross arrangements, and the extending line intersection point of the rolling surface of taper roller is positioned on the turning spur of bearing 3; The rolling element of this bearing 3 is done pure rolling in motion process; Avoid relative slip, so its limit speed is higher, and can carries axial force and radial load in workbench 2 courses of work.
The utility model creatively only adopts a crossed-circle taper roller bearing 3; To replace the combination that thrust ball bearing and double row tapered roller axis of a cylinder hold in the prior art; Not only can satisfy the requirement of rotating speed; Also can satisfy the requirement of carrying, and the bearing of same model can be used for the different lathe of several moneys, have the good advantage of versatility.
The crossed-circle taper roller bearing 3 of the utility model is by first positioning element and second positioning element location; Wherein first positioning element is fixedly set in workbench 2; Second positioning element is fixedly set in base 1; One of them of first positioning element and second positioning element is to the location, outer ring of bearing 3, and another is to the inner ring location of bearing 3.Should be understood that the outer ring of bearing 3 can comprise upside, the outside and downside, the inner ring of bearing 3 can comprise upside, inboard and downside, and the positioning element of the utility model all can position aforesaid each side.
In the embodiment shown in fig. 1, be fixed in the outer ring location of first positioning element of workbench 2, be fixed in the inner ring location of second positioning element of base 1 bearing 3 to bearing 3.Those skilled in the art can adopt the location structure of multiple structure respectively the outer ring and the inner ring of bearing 3 to be located.
Preferably, as depicted in figs. 1 and 2, first positioning element of the utility model one embodiment comprises gear ring 41 and lower platen 42.Wherein, gear ring 41 and transmission system engagement, gear ring 41 comprise first locating surface to the upside location of the outer ring of bearing 3, and to second locating surface of the location, the outside of the outer ring of bearing 3; Lower platen 42 is fixed in gear ring 41 belows, the downside location of the outer ring of 42 pairs of bearings 3 of lower platen.The lower platen 42 of the utility model preferably is fixed in gear ring 41 belows through screw, and this screw can be adjusted the pretightning force between bearing 3 and the lower platen 42.
Further, second positioning element of the utility model comprises supporting seat 51 and top board 52.Wherein, supporting seat 51 is fixed in base 1 top, and supporting seat 51 comprises the 3rd locating surface to the downside of the inner ring of bearing 3 location, and to the 4th locating surface of the location, inboard of the inner ring of bearing 3; Top board 52 is fixed in supporting seat 51 tops, the upside location of the inner ring of 51 pairs of bearings 3 of supporting seat.The top board 52 of the utility model preferably is fixed in supporting seat 51 tops through screw, and this screw can be adjusted the pretightning force between bearing 3 and the top board 52.
In addition, second positioning element can also comprise adjusting pad 53, and adjusting pad 53 is arranged between top board 52 and the supporting seat 51, and this adjusting pad 53 can be adjusted assemblage gap and the pretightning force between bearing 3 and the top board 52.Shown in Figure 3 is the structure chart of the adjusting pad 53 of the utility model one embodiment, and wherein adjusting pad 53 is made up of polylith fanning strip 531, and each fanning strip 531 forms circular structure on the whole.Preferred adjusting pad 53 is divided into 3 or 4 fanning strips 531 at circumferencial direction.On the basis of this technical scheme, the utility model can adopt the less lathe of model specification to carry out adjusting pad processing, reduces processing cost.
Need to prove that for the ease of the installation adjustment of crossed-circle taper roller bearing 3, the utility model can be so that the inner ring inboard of the 4th locating surface and crossed-circle taper roller bearing 3 has different tolerance fit.Correspondingly, offer notch 510 on the 4th locating surface, the part of notch 510 upsides and the inboard top loose fit of the inner ring of bearing 3, the part of notch 510 downsides and the inboard bottom tight fit of the inner ring of bearing 3.
Further, the utility model surveying work platform 2 rotating angular displacements in real time.This table device also comprises central shaft shown in Figure 16 and encoder 7.Wherein, central shaft 6 turns round with workbench 2 synchronously; One end of central shaft 6 is arranged on the rotary part of encoder 7, and the on-rotatably moving part of encoder 7 fixedly installs.The on-rotatably moving part of encoder 7 can be fixed on as on the encoder support 71, and this encoder support 71 can be fixed in base 1 top.
This central shaft 6 can be directly fixed on the workbench 2, also can fix through other attaching parts, turns round synchronously to guarantee itself and central shaft 6.As an embodiment; The table device of the utility model also comprises connecting plate 8, and connecting plate 8 is fixedly connected between workbench 2 and first positioning element (like gear ring 41), and the center of connecting plate 8 offers centre bore; Central shaft 6 is arranged in the centre bore, and central shaft 6 is with connecting plate 8 revolutions.Should be understood that for fear of the damage that encoder 7 is caused because of the revolution skew, this central shaft 6 also can be arranged at another bearing inner race.Structural entity such as this bearing and central shaft 6 are arranged in the centre bore of connecting plate 8.
Need to prove that this connecting plate 8 can be fixed in workbench 2 belows through screw, first positioning element (like gear ring 41) also can be fixed in connecting plate 8 belows through screw.In addition, in the upper area that connecting plate 8 contacts with workbench 2, can also be provided with the conical surface of mutual coupling, the center of this conical surface is vertical.This conical surface gradient can be 1: 4 numerical value such as grade.This conical surface can guarantee that connecting plate 8 and workbench 2 are concentric, and guarantees that finally workbench 2 is concentric with crossed-circle taper roller bearing 3.
Further, in order to prevent that lubricating oil from getting into encoder 7 it is caused damage, the utility model can also be isolated encoder 7.Correspondingly; As shown in Figure 2; One of them of the connecting plate 8 of the utility model and second positioning element (like supporting seat 51) is provided with first annular boss 81; Another is provided with first annular groove, and first annular boss 81 is arranged in first annular groove, and first annular boss 81 of second positioning element or first annular groove below are provided with first spill port 91.Preferred first annular groove is arranged on the supporting seat 51, and first annular boss 81 and first annular groove are mated condition, and between have the gap.
In order to prevent that base 1 inner oil is splashed to base 1 outside when working, pollute, the utility model is isolated base 1 internal structure and external environment condition further.Correspondingly; As shown in Figure 1; Base 1 of the utility model and one of them of workbench 2 are provided with second annular boss 21; Another is provided with second annular groove, and second annular boss 21 is arranged in second annular groove, and second annular boss 21 of base 1 or second annular groove below are provided with second spill port 92.Preferred second annular groove is arranged on the base 1, and second annular boss 21 and second annular groove are mated condition, and between have the gap.
Except aforementioned table device, the utility model also provides a kind of lathe that comprises aforementioned table device, and other structure of this lathe is with reference to prior art, and this paper repeats no more at this.Preferred this lathe is vertical machines such as vertical grinder, vertical grinding combined machine or vertical complex milling machine tool.
In sum, the utility model only promptly can carry axial force and radial load in workbench 2 courses of work with a crossed-circle taper roller bearing 3, and can guarantee the rotating speed and the end face run-out precision of workbench 2.Compared with prior art, the utlity model has following advantage:
1) simple, Stability Analysis of Structures are installed
The utility model is compared with two traditional bearing arrangements, and structure is very simple, has avoided the double row tapered roller axis of a cylinder to hold the shortcoming of mounting process complicacy, easy abrasion.The utility model only need closely cooperating through first positioning element and second positioning element; Crossed-circle taper roller bearing 3 can be stably mounted; It installs simple, Stability Analysis of Structures; Have rigidity and antidumping power preferably, and can obtain the higher end face run-out of precision, thereby guaranteed the workpiece machining accuracy.
2) easy to adjust
The utility model can be through assemblage gap and the pretightning force between the inner ring upside of adjusting pad 53 adjustment top boards 52 and crossed-circle taper roller bearing 3; And can be convenient to the installation adjustment of crossed-circle taper roller bearing 3 so that the inner ring inboard of the 4th locating surface and crossed-circle taper roller bearing 3 has different tolerance fit.
3) versatility is good
The bearing capacity and the rotating speed of the crossed-circle taper roller bearing 3 that the utility model is selected for use have bigger advantage, and the bearing 3 of same model can be used for the different lathe of several moneys.Therefore, the versatility of the utility model is stronger, applicable to the lathe of multiple model.
In addition, the utility model also has advantages such as production efficiency height, saving cost.
Therefore, the beneficial effect of the utility model is conspicuous.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. a table device is characterized in that, comprising:
Base (1);
Workbench (2), said workbench (2) are positioned at base (1) top and turn round with respect to base (1);
Crossed-circle taper roller bearing (3), said crossed-circle taper roller bearing (3) comprises outer ring and inner ring;
First positioning element and second positioning element; Said first positioning element is fixedly set in workbench (2); Said second positioning element is fixedly set in base (1); One of them of said first positioning element and second positioning element is to the location, outer ring of said bearing (3), and another is to the inner ring location of said bearing (3).
2. table device according to claim 1 is characterized in that, said first positioning element comprises:
Gear ring (41), the engagement of said gear ring (41) and transmission system, said gear ring (41) comprises first locating surface to the upside location of the outer ring of said bearing (3), and to second locating surface of the location, the outside of the outer ring of said bearing (30);
Lower platen (42), said lower platen (42) are fixed in gear ring (41) below, and said lower platen (42) is to the downside location of the outer ring of said bearing (3).
3. table device according to claim 1 is characterized in that, said second positioning element comprises:
Supporting seat (51), said supporting seat (51) are fixed in base (1) top, and said supporting seat (51) comprises the 3rd locating surface to the downside location of the inner ring of said bearing (3), and to the 4th locating surface of the location, inboard of the inner ring of said bearing (3);
Top board (52), said top board (52) are fixed in supporting seat (51) top, and said supporting seat (51) is to the upside location of the inner ring of said bearing (3).
4. table device according to claim 3 is characterized in that, said second positioning element also comprises:
Adjusting pad (53), said adjusting pad (53) are arranged between said top board (52) and the said supporting seat (51), and said adjusting pad (53) is made up of polylith fanning strip (531).
5. table device according to claim 3; It is characterized in that; Offer notch (510) on said the 4th locating surface; The part of said notch (510) upside and the inboard top loose fit of the inner ring of said bearing (3), the part of said notch (510) downside and the inboard bottom tight fit of the inner ring of said bearing (3).
6. according to each described table device of claim 1-5, it is characterized in that, also comprise:
Central shaft (6), said central shaft (6) is with said workbench (2) revolution synchronously;
Encoder (7), an end of said central shaft (6) is arranged on the rotary part of encoder (7), and the on-rotatably moving part of said encoder (7) fixedly installs.
7. table device according to claim 6 is characterized in that, also comprises:
Connecting plate (8), said connecting plate (8) are fixedly connected between the workbench (2) and first positioning element, and the center of said connecting plate (8) offers centre bore, and said central shaft (6) is arranged in the said centre bore, and said central shaft (6) turns round with said connecting plate (8).
8. table device according to claim 7; It is characterized in that; One of them of the said connecting plate (8) and second positioning element is provided with first annular boss (81); Another is provided with first annular groove, and said first annular boss (81) is arranged in said first annular groove, and first annular boss (81) of said second positioning element or first annular groove below are provided with first spill port (91).
9. according to each described table device of claim 1-5; It is characterized in that; One of them of said base (1) and workbench (2) is provided with second annular boss (21); Another is provided with second annular groove, and said second annular boss (21) is arranged in said second annular groove, and second annular boss (21) of said base (1) or second annular groove below are provided with second spill port (92).
10. a lathe is characterized in that, said lathe comprises each described table device of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204841296U CN202411843U (en) | 2011-11-29 | 2011-11-29 | Machine tool and workbench device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204841296U CN202411843U (en) | 2011-11-29 | 2011-11-29 | Machine tool and workbench device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202411843U true CN202411843U (en) | 2012-09-05 |
Family
ID=46736637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204841296U Expired - Fee Related CN202411843U (en) | 2011-11-29 | 2011-11-29 | Machine tool and workbench device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202411843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407449A (en) * | 2011-11-29 | 2012-04-11 | 上海三一精机有限公司 | Machine tool and working table device thereof |
-
2011
- 2011-11-29 CN CN2011204841296U patent/CN202411843U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407449A (en) * | 2011-11-29 | 2012-04-11 | 上海三一精机有限公司 | Machine tool and working table device thereof |
| CN102407449B (en) * | 2011-11-29 | 2014-04-02 | 上海三一精机有限公司 | Machine tool and working table device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |