CN203380620U - Large vertical type high speed digital controlled lathe working table - Google Patents
Large vertical type high speed digital controlled lathe working table Download PDFInfo
- Publication number
- CN203380620U CN203380620U CN201320238785.7U CN201320238785U CN203380620U CN 203380620 U CN203380620 U CN 203380620U CN 201320238785 U CN201320238785 U CN 201320238785U CN 203380620 U CN203380620 U CN 203380620U
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- main shaft
- fluted disc
- working table
- base
- fastening cap
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Abstract
The utility model discloses a large vertical type high speed digital controlled lathe working table, comprising a base, a fluted disc, a workbench, a main shaft, a main shaft coder and a main shaft fastening cap, wherein the workbench and the fluted disc are of a split design and are fastened together to form the working table; the base is coupled with the working table by the main shaft and the main shaft coder; the main shaft fastening cap is arranged between the main shaft and the main shaft coder; a radial main bearing is arranged between the fluted disc and the main shaft; an upper thrust bearing is arranged between the lower end of the outer edge of the main shaft fastening cap and the fluted disc; a main thrust bearing between the outer edge of the fluted disc and the base is adopted for supporting the working table; the fluted disc, the base and the main shaft form two closed cavities; a set of oil hydraulic system is arranged in each cavity. According to the large vertical type high speed digital controlled lathe working table, the rotating speed of the working table is obviously improved, the radial and axial displacement of the working table can be effectively prevented, and the working table is very stable during high-speed operation.
Description
Technical field
The utility model belongs to mechanical field, is specifically related to a kind of numerically controlled lathe work top, especially a kind of large-scale vertical high-speed numeric control Lathe bench face.
Background technology
Work top reaches the large-scale vertical numerically controlled lathe or supporting way employing high thrust bearing of 3.15 meters at present, or adopts the oil film supporting way, and all there is the problem of work top fluctuation of service in these two kinds of modes.For the mode of high thrust bearing, the high thrust bearing is arranged on the interior circle centre position of work top usually, and, because the workpiece weight of bearing on large work top is large, work top in service is easy to distortion and causes fluctuation of service, and the workpiece quality of processing is poor.For adopting oil film to support, the rotating speed of its turning, turnning and milling or on the low side, normally in the 2-63rpm scope, it can not realize that the main cause of high-speed cruising is that work top is by hydraulic pressure support, when work top runs up, it will produce a centrifugal force to oil film, and oil film tends to get rid of and gets together under the effect of centrifugal force, therefore can make work table top ring-shaped guide rail and base circular table form dry friction, cause the damage lathe; Secondly, under the oil film hot soak condition, oil pressure can cause variation, causes oil film thickness inhomogeneous, so the work top operation can be inhomogeneous, causes the workpiece quality of processing obviously not reach requirement.
Summary of the invention
Cause the poor problem of workpiece quality of processing in order to solve existing large-scale vertical high-speed numeric control Lathe bench face fluctuation of service, the utility model provides a kind of large-scale vertical high-speed numeric control Lathe bench face.
In order to realize the utility model, the technical scheme that the utility model large-scale vertical high-speed numeric control Lathe bench face is taked is as follows:
A kind of large-scale vertical high-speed numeric control Lathe bench face, it comprises base, fluted disc, workbench, main shaft, spindle encoder, main shaft fastening cap, workbench and the fluted disc split composition work top that designs and tighten together wherein, base and work top are linked together by main shaft and spindle encoder, be provided with the main shaft fastening cap between main shaft and spindle encoder, be provided with radially base bearing between fluted disc and main shaft, between the lower end of main shaft fastening cap outer rim and fluted disc, be provided with up-thrust bearing; Adopt main thrust bearings support works table top between the outer rim of fluted disc and base; Fluted disc, base, main shaft form two closed cavities, in this each cavity, are provided with a set of oil hydraulic system.
Above-mentioned large-scale vertical high-speed numeric control Lathe bench face, described workbench is connected with main shaft by spindle encoder.
The utility model large-scale vertical high-speed numeric control Lathe bench face, work top adopts journal bearing, main thrust bearings and up-thrust bearing structure, support and move in a circle by main thrust bearings, by radially base bearing restriction radial displacement, by the displacement of up-thrust bearing restrictive axial, it not only can significantly improve the rotating speed of work top, also can effectively prevent simultaneously work top axially and radial deflection, so very stable during high speed.
A kind of large-scale vertical high-speed numeric control of the utility model Lathe bench face, the applicant has done finite element analysis, the work top maximum speed can reach 180rpm, maximum stable operating mode rotating speed can reach 140rpm, operating efficiency can significantly improve, and the 2-3 that common operating efficiency is existing large-scale vertical numerically controlled lathe doubly; Particularly importantly, its work top has high stability, and the workpiece quality of processing can significantly improve.
A kind of large-scale vertical high-speed numeric control of the utility model Lathe bench face, because it has good stability, the applicant is through actual measurement, the any 300mm flatness of work top is less than 0.005mm, the workbench end face run-out is less than 0.015mm, and the workbench circular runout is less than 0.02mm, and precision is fine.
the accompanying drawing explanation
Fig. 1 is the utility model large-scale vertical high-speed numeric control Lathe bench face structural representation.
In figure, chassis 1, spindle encoder 2, main thrust bearings 3, fluted disc 4, workbench 5, main shaft 6, up-thrust bearing 7, oil hydraulic system 8, radially base bearing 9, main shaft fastening cap 10.
the specific embodiment
Below in conjunction with embodiment, the utility model is further elaborated.
Embodiment 1:
As shown in the figure, a kind of large-scale vertical high-speed numeric control Lathe bench face, it comprises base 1, fluted disc 4, workbench 5, main shaft 6, spindle encoder 2, main shaft fastening cap 10, workbench 5 and the fluted disc 4 splits composition work top that designs and tighten together wherein, base 1 is linked together by main shaft 6 and spindle encoder 2 with work top, be provided with main shaft fastening cap 10 between main shaft 6 and spindle encoder 2, be provided with radially base bearing 9 between fluted disc 4 and main shaft 6, between the lower end of main shaft fastening cap 10 outer rims and fluted disc 4, be provided with up-thrust bearing 7; Adopt main thrust bearings 3 support works table tops 5 between the outer rim of fluted disc 4 and base 1; Fluted disc 4, base 1, main shaft 6 form two closed cavities 11, in this each cavity 11, are provided with a set of oil hydraulic system.
As shown in the figure, large-scale vertical high-speed numeric control Lathe bench face, described workbench 5 is connected with main shaft 6 by spindle encoder 2.
Claims (2)
1. a large-scale vertical high-speed numeric control Lathe bench face, it comprises base, fluted disc, workbench, main shaft, spindle encoder, main shaft fastening cap, it is characterized in that: workbench and the fluted disc split composition work top that designs and tighten together, base and work top are linked together by main shaft and spindle encoder, be provided with the main shaft fastening cap between main shaft and spindle encoder, be provided with radially base bearing between fluted disc and main shaft, between the lower end of main shaft fastening cap outer rim and fluted disc, be provided with up-thrust bearing; Adopt main thrust bearings support works table top between the outer rim of fluted disc and base; Fluted disc, base, main shaft form two closed cavities, in this each cavity, are provided with a set of oil hydraulic system.
2. large-scale vertical high-speed numeric control Lathe bench face according to claim 1, it is characterized in that: described workbench is connected with main shaft by spindle encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320238785.7U CN203380620U (en) | 2013-05-07 | 2013-05-07 | Large vertical type high speed digital controlled lathe working table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320238785.7U CN203380620U (en) | 2013-05-07 | 2013-05-07 | Large vertical type high speed digital controlled lathe working table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203380620U true CN203380620U (en) | 2014-01-08 |
Family
ID=49869146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320238785.7U Expired - Fee Related CN203380620U (en) | 2013-05-07 | 2013-05-07 | Large vertical type high speed digital controlled lathe working table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203380620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286570A (en) * | 2013-05-07 | 2013-09-11 | 青岛大成机床有限公司 | Working table of large-scale vertical high-speed numerically-controlled lathe |
-
2013
- 2013-05-07 CN CN201320238785.7U patent/CN203380620U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286570A (en) * | 2013-05-07 | 2013-09-11 | 青岛大成机床有限公司 | Working table of large-scale vertical high-speed numerically-controlled lathe |
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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: 20140108 Termination date: 20150507 |
|
| EXPY | Termination of patent right or utility model |