CN103286570A - Working table of large-scale vertical high-speed numerically-controlled lathe - Google Patents
Working table of large-scale vertical high-speed numerically-controlled lathe Download PDFInfo
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- CN103286570A CN103286570A CN2013101625937A CN201310162593A CN103286570A CN 103286570 A CN103286570 A CN 103286570A CN 2013101625937 A CN2013101625937 A CN 2013101625937A CN 201310162593 A CN201310162593 A CN 201310162593A CN 103286570 A CN103286570 A CN 103286570A
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- fluted disc
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- main shaft
- working table
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Abstract
The invention discloses a working table of a large-scale vertical high-speed numerically-controlled lathe. The working table comprises a base, a fluted disc, a workbench, a spindle, a spindle encoder and a spindle fastening cap, wherein the workbench and the fluted disc adopt a split-type design and are fastened together to form the working table; the base is connected with the working table through the spindle and the spindle encoder; the spindle fastening cap is arranged between the spindle and the spindle encoder; a radial main bearing is arranged between the fluted disc and the spindle; an upper thrust bearing is arranged between the lower end of the outer edge of the spindle fastening cap and the fluted disc; a main thrust bearing is adopted between the outer edge of the fluted disc and the base to support the working table; two closed cavities are formed by the fluted disc, the base and the spindle; and a set of oil hydraulic system is arranged in each cavity. Not only the rotational speed of the working table is remarkably increased, but also the axial and radial deviation of the working table can be effectively prevented and the working table is very stable during high-speed operation.
Description
Technical field
The invention belongs to mechanical field, be 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 3.15 meters the supporting way large-scale vertical numerically controlled lathe or employing high thrust bearing at present, or adopts the oil film supporting way, and all there is the problem of work top fluctuation of service in this dual mode.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 the big work top is big, 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 still is 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 supported by hydraulic pressure, when work top ran up, it will produce a centrifugal force to oil film, and oil film tends to get rid of under action of centrifugal force and gets together, therefore can make worker's table top ring-shaped guide rail and base circular table form dry friction, cause the damage lathe; Secondly, because 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, cause the workpiece quality of processing obviously not reach requirement.
Summary of the invention
In order to solve the problem that existing large-scale vertical high-speed numeric control Lathe bench face fluctuation of service causes the workpiece quality difference of processing, the invention provides a kind of large-scale vertical high-speed numeric control Lathe bench face.
In order to realize the present invention, the technical scheme that large-scale vertical high-speed numeric control Lathe bench face of the present invention 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, wherein workbench and fluted disc split design and the composition work top that tightens 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 the spindle encoder, be provided with radially base bearing between fluted disc and the main shaft, be provided with up-thrust bearing between the lower end of main shaft fastening cap outer rim and the fluted disc; The outer rim of fluted disc be in base and between adopt main thrust bearings support works table top, and fluted disc, base, main shaft form two closed cavities, is provided with a cover oil hydraulic system in this each cavity.
Above-mentioned large-scale vertical high-speed numeric control Lathe bench face, described workbench is connected with main shaft by spindle encoder.
Large-scale vertical high-speed numeric control Lathe bench face of the present invention, work top adopts journal bearing, main thrust bearings and up-thrust bearing structure, moved in a circle by the main thrust bearings support, 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 present invention 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 present invention 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.
Description of drawings
Fig. 1 is large-scale vertical high-speed numeric control Lathe bench face structural representation of the present invention.
Among the 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
The present invention is further elaborated below in conjunction with embodiment.
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, wherein workbench 5 designs and the composition work top that tightens together with fluted disc 4 splits, 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 the spindle encoder 2, be provided with radially base bearing 9 between fluted disc 4 and the main shaft 6, be provided with up-thrust bearing 7 between the lower end of main shaft fastening cap 10 outer rims and the fluted disc 4; The outer rim of fluted disc 4 be in base 1 and between adopt main thrust bearings 3 support works table tops, and fluted disc 4, base 1, main shaft 6 form two closed cavities 11, is provided with a cover oil hydraulic system 10 in this each cavity 11.
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. 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 fluted disc split design and the composition work top that tightens 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 the spindle encoder, be provided with radially base bearing between fluted disc and the main shaft, be provided with up-thrust bearing between the lower end of main shaft fastening cap outer rim and the fluted disc; The outer rim of fluted disc be in base and between adopt main thrust bearings support works table top, and fluted disc, base, main shaft form two closed cavities, is provided with a cover oil hydraulic system in this each cavity.
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 |
|---|---|---|---|
| CN2013101625937A CN103286570A (en) | 2013-05-07 | 2013-05-07 | Working table of large-scale vertical high-speed numerically-controlled lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101625937A CN103286570A (en) | 2013-05-07 | 2013-05-07 | Working table of large-scale vertical high-speed numerically-controlled lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103286570A true CN103286570A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101625937A Pending CN103286570A (en) | 2013-05-07 | 2013-05-07 | Working table of large-scale vertical high-speed numerically-controlled lathe |
Country Status (1)
| Country | Link |
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| CN (1) | CN103286570A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758688A (en) * | 2014-01-20 | 2014-04-30 | 大连理工大学 | Yaw adjusting device of horizontal-axis tidal-energy water turbine |
| CN111451840A (en) * | 2020-04-08 | 2020-07-28 | 秦皇岛齐二数控机床有限公司 | High-speed self-balancing rotary table |
| CN111618604A (en) * | 2019-02-27 | 2020-09-04 | 衢州职业技术学院 | Numerical control lathe base |
| CN114505696A (en) * | 2022-03-15 | 2022-05-17 | 江苏恒望机械科技有限公司 | Rotary table bearing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000210826A (en) * | 1999-01-22 | 2000-08-02 | Okuma Corp | Spindle device for machine tool |
| JP2001287102A (en) * | 2000-04-05 | 2001-10-16 | Okuma & Howa Machinery Ltd | Combined machining machine tool |
| CN201693188U (en) * | 2010-03-19 | 2011-01-05 | 沈阳机床股份有限公司 | Driving device for turning-milling worktable spindle |
| CN201841270U (en) * | 2010-09-28 | 2011-05-25 | 洛阳世必爱特种轴承有限公司 | Numerically-controlled finishing device for finishing and convexity modification of bearing race |
| CN202655913U (en) * | 2012-06-14 | 2013-01-09 | 青岛永基重型机床有限公司 | Rotary type workbench and vertical type turn milling compound machine tool |
| CN203380620U (en) * | 2013-05-07 | 2014-01-08 | 青岛大成机床有限公司 | Large vertical type high speed digital controlled lathe working table |
-
2013
- 2013-05-07 CN CN2013101625937A patent/CN103286570A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000210826A (en) * | 1999-01-22 | 2000-08-02 | Okuma Corp | Spindle device for machine tool |
| JP2001287102A (en) * | 2000-04-05 | 2001-10-16 | Okuma & Howa Machinery Ltd | Combined machining machine tool |
| CN201693188U (en) * | 2010-03-19 | 2011-01-05 | 沈阳机床股份有限公司 | Driving device for turning-milling worktable spindle |
| CN201841270U (en) * | 2010-09-28 | 2011-05-25 | 洛阳世必爱特种轴承有限公司 | Numerically-controlled finishing device for finishing and convexity modification of bearing race |
| CN202655913U (en) * | 2012-06-14 | 2013-01-09 | 青岛永基重型机床有限公司 | Rotary type workbench and vertical type turn milling compound machine tool |
| CN203380620U (en) * | 2013-05-07 | 2014-01-08 | 青岛大成机床有限公司 | Large vertical type high speed digital controlled lathe working table |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758688A (en) * | 2014-01-20 | 2014-04-30 | 大连理工大学 | Yaw adjusting device of horizontal-axis tidal-energy water turbine |
| CN103758688B (en) * | 2014-01-20 | 2015-12-30 | 大连理工大学 | Horizontal axis tidal current energy water turbine yaw adjustment device |
| CN111618604A (en) * | 2019-02-27 | 2020-09-04 | 衢州职业技术学院 | Numerical control lathe base |
| CN111451840A (en) * | 2020-04-08 | 2020-07-28 | 秦皇岛齐二数控机床有限公司 | High-speed self-balancing rotary table |
| CN111451840B (en) * | 2020-04-08 | 2021-11-30 | 秦皇岛齐二数控机床有限公司 | High-speed self-balancing rotary table |
| CN114505696A (en) * | 2022-03-15 | 2022-05-17 | 江苏恒望机械科技有限公司 | Rotary table bearing device |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |