CN102990372A - Operating platform of numerical control heavy-duty type milling lathe - Google Patents
Operating platform of numerical control heavy-duty type milling lathe Download PDFInfo
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- CN102990372A CN102990372A CN201210511785XA CN201210511785A CN102990372A CN 102990372 A CN102990372 A CN 102990372A CN 201210511785X A CN201210511785X A CN 201210511785XA CN 201210511785 A CN201210511785 A CN 201210511785A CN 102990372 A CN102990372 A CN 102990372A
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- workbench
- guiderail
- ring
- operating platform
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Abstract
The invention discloses an operating platform of a numerical control heavy-duty type milling lathe. An inner-ring static pressure guiderail and an outer-ring static pressure guiderail comprise a large gear ring, an outer-ring round guiderail plate and an inner-ring round guiderail plate, wherein the large gear is arranged at the outer side of an outer-ring guiderail, the outer-ring round guiderail plate is arranged on the outer-ring guiderail arranged on a base, and the inner-ring round guiderail plate is arranged on an inner-ring guiderail arranged on a base. A static pressure spindle consists of a spindle, a base, a static pressure shaft shoe and a static pressure oil chamber. A round grating component is adopted as a closed loop feedback device. The operating platform of the numerical control heavy-duty type milling lathe has the beneficial effects that the rotating speed, precision and the precision retaining ability of the operating platform can be greatly enhanced, the heat value, deformation and temperature of the operating platform can be obviously reduced, the problem that the guiderail on the operating platform of the numerical control heavy-duty type milling lathe is easily ground can be solved, the diameter of the operating platform can reach more than 10m, and the maximum rotating speed of the operating platform of the numerical control heavy-duty type milling lathe bearing more than 400 tons can reach more than 30r/min.
Description
Technical field
The present invention relates to a kind of numerical control heavy type vertical milling machine workbench.
Background technology
At present, domestic workbench diameter more than 10 meters, the workbench of the heavy type numerical control vertical milling lathe of load-bearing more than 300 tons exists to some extent all that rotating speed is low, precision is low, the part working (machining) efficiency is low, the deficiency of part roughness of machining surface.In addition, because the caloric value of workbench when continuous rotation of existing heavy type numerical control vertical milling lathe is larger, the thermal deformation meeting that causes because of temperature rise is wandered away seriously the precision of workbench, and the accident that table slide grinds wound often occurs.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of heavy type numerical control vertical milling lathe workbench, and this workbench can reduce the caloric value of table slide greatly, increases substantially rotating speed and the precision of workbench.
Technical scheme of the present invention is: this workbench is comprised of inside and outside pair of circle hydrostatic slideway, hydrostatic spindle and closed-loop feedback arrangement, wherein the assembly structure of inside and outside pair of circle hydrostatic slideway is: workbench is contained on the base, bull gear is contained in the outside of outer ring guide rail, its centering inner hole is enclosed within on the centering external cylindrical surface of workbench bottom, and upper surface and workbench bottom locating shaft shoulder rest are tight.Outer ring circular guideway plate is contained on the outer ring guide rail locating surface of base, and its upper surface and guide rail lower surface, outer ring matched in clearance form the outer ring hydrostatic slideway.Inner ring circular guideway plate is contained on the inner ring guide rail locating surface of base, and its upper surface and inner ring guide rail lower surface matched in clearance form the inner ring hydrostatic slideway.
The assembly structure of hydrostatic spindle is: main shaft is positioned at the core of base, and its external cylindrical surface connects with the internal point interference fit of base core, and hydrostatic bearing pad is installed in the workbench centering inner hole, and its shaft shoulder lower surface is pressed on the workbench centering inner hole upper surface.Top board lower surface and main shaft upper surface tight joint, the static pressure grease chamber and the hydrostatic bearing pad upper surface matched in clearance that are located at the top board outside form the preload hydrostatic slideway.
Closed-loop feedback arrangement is mounted in the round grating assembly on the top board end face in the workbench endoporus.
The novel beneficial effect of the present invention is: the workbench of this heavy type numerical control vertical milling lathe can improve rotating speed, precision and the precision stability of workbench greatly, obviously reduce caloric value, distortion and the temperature of workbench, the table slide that has solved heavy type numerical control vertical milling lathe easily grinds the problem of wound, improved part working (machining) efficiency and the precision of heavy type numerical control vertical milling lathe, the workbench diameter more than 10 meters, the workbench maximum speed of the heavy type numerical control vertical milling lathe of load-bearing more than 400 tons can reach more than the 30r/min.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in detail.
Fig. 1 is structural representation of the present invention.
Number in the figure:
1, workbench 2, bull gear 3, outer ring guide rail 4, outer ring circular guideway plate
5, inner ring guide rail 6, inner ring circular guideway plate 7, base 8, circle grating assembly
9, top board 10, main shaft 11, static pressure grease chamber 12, hydrostatic bearing pad.
The specific embodiment
Example 1
As shown in Figure 1, workbench of the present invention comprises inside and outside pair of circle hydrostatic slideway, hydrostatic spindle and closed-loop feedback arrangement, wherein the structure of inside and outside pair of circle hydrostatic slideway is: workbench 1 is contained on the base 7, bull gear 2 is contained in the outside of outer ring guide rail 3, its centering inner hole is enclosed within on the centering external cylindrical surface of workbench 1 bottom, and upper surface and workbench 1 bottom locating shaft shoulder rest are tight; Outer ring circular guideway plate 4 is contained on the outer ring guide rail locating surface of base 7, and its upper surface and outer ring guide rail 3 lower surface matched in clearance form the outer ring hydrostatic slideway; Inner ring circular guideway plate 6 is contained on the inner ring guide rail locating surface of base 7, and its upper surface and inner ring guide rail 5 lower surface matched in clearance form the inner ring hydrostatic slideway.
The structure of hydrostatic spindle is: main shaft 10 is positioned at the core of base 7, and its external cylindrical surface connects with the internal point interference fit of base 7 cores, and hydrostatic bearing pad 12 is installed in workbench 1 centering inner hole, and its shaft shoulder lower surface is pressed on the workbench 1 centering inner hole upper surface; Top board 9 lower surfaces and main shaft 10 upper surface tight joints, the static pressure grease chamber 11 that is located at top board 9 outsides forms the preload hydrostatic slideway with hydrostatic bearing pad 12 upper surface matched in clearance.
The structure of closed-loop feedback arrangement is: circle grating assembly 8 is installed in workbench 1 endoporus, on the end face of top board 9.
Example 2
The course of work of the present invention is: press the button the station start button, outer ring circular guideway plate 4, inner ring circular guideway plate 6, static pressure grease chamber 11 and hydrostatic bearing pad 12 are oily, workbench 1 upwards floats, at outer ring circular guideway plate 4, in inner ring circular guideway plate 6 and the workbench 1, form the static pressure oil clearance between the guide rail of outer ring, between the static pressure grease chamber 11 of hydrostatic bearing pad 12 upper surfaces and top board 9, form the static pressure oil clearance, top board 9 compresses hydrostatic bearing pad 12 and workbench 1 by the static pressure oil clearance, 9 pairs of workbench 1 of top board play the effect of static pressure pretension, improve in the workbench 1, oil film rigidity and the precision of outer two circle hydrostatic slideways, main transmission box is by 2 rotations of gear drive bull gear, circle grating assembly 8 feeds back to digital control system with the actual position signal of workbench 1 rotation, and digital control system is controlled the position of rotation of workbench 1 by the rotation of control main transmission box motor.
Claims (1)
1. numerical control heavy type vertical milling machine workbench, it is characterized in that: this workbench is comprised of inside and outside pair of circle hydrostatic slideway, hydrostatic spindle and closed-loop feedback arrangement, wherein the assembly structure of inside and outside pair of circle hydrostatic slideway is: workbench (1) is contained on the base (7), bull gear (2) is contained in the outside of outer ring guide rail (3), its centering inner hole is enclosed within on the centering external cylindrical surface of workbench (1) bottom, and upper surface and workbench (1) bottom locating shaft shoulder rest is tight; Outer ring circular guideway plate (4) is contained on the outer ring guide rail locating surface of base (7), and its upper surface and outer ring guide rail (3) lower surface matched in clearance form the outer ring hydrostatic slideway; Inner ring circular guideway plate (6) is contained on the inner ring guide rail locating surface of base (7), and its upper surface and inner ring guide rail (5) lower surface matched in clearance form the inner ring hydrostatic slideway; The assembly structure of hydrostatic spindle is: main shaft (10) is positioned at the core of base (7), its external cylindrical surface connects with the internal point interference fit of base (7) core, hydrostatic bearing pad (12) is installed in workbench (1) centering inner hole, and its shaft shoulder lower surface is pressed on workbench (1) the centering inner hole upper surface; Top board (9) lower surface and main shaft (10) upper surface tight joint are located at the outside static pressure grease chamber (11) of top board (9) and form the preload hydrostatic slideway with hydrostatic bearing pad (12) upper surface matched in clearance; Closed-loop feedback arrangement is mounted in the round grating assembly (8) on top board (9) end face in workbench (1) endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210511785.XA CN102990372B (en) | 2012-12-04 | 2012-12-04 | Operating platform of numerical control heavy-duty type milling lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210511785.XA CN102990372B (en) | 2012-12-04 | 2012-12-04 | Operating platform of numerical control heavy-duty type milling lathe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990372A true CN102990372A (en) | 2013-03-27 |
| CN102990372B CN102990372B (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210511785.XA Active CN102990372B (en) | 2012-12-04 | 2012-12-04 | Operating platform of numerical control heavy-duty type milling lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102990372B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419028A (en) * | 2013-08-26 | 2013-12-04 | 苏州江源精密机械有限公司 | Large vertical lathe workbench with C axis function |
| CN104999284A (en) * | 2015-08-21 | 2015-10-28 | 烟台三维机床制造有限公司 | Heavy load straight tooth transmission full-closed loop high precision rotating table |
| CN115464424A (en) * | 2022-10-31 | 2022-12-13 | 沈阳马卡智工科技有限公司 | Five-axis machining center rotary worktable |
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| WO2004061336A1 (en) * | 2003-01-06 | 2004-07-22 | Ulrich Rohs | Pressing device for tensioning two gearing elements, gearing provided with a pressing device of this type, and method for operating such a friction gearing |
| WO2005040945A1 (en) * | 2003-10-23 | 2005-05-06 | Sumitomo Heavy Industries, Ltd. | Stage device |
| CN201078557Y (en) * | 2007-09-29 | 2008-06-25 | 李颖仲 | Guide rail self-driving type circular turntable of three surfaces static pressure enclosing type |
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| CN102039527A (en) * | 2010-09-29 | 2011-05-04 | 中捷机床有限公司 | Open-type static pressure rotating table for controlling floating degree and manufacturing method thereof |
| CN201960349U (en) * | 2011-01-27 | 2011-09-07 | 上海三一精机有限公司 | Static pressure workbench |
| CN202336720U (en) * | 2011-12-06 | 2012-07-18 | 齐重数控装备股份有限公司 | High-end high-accuracy vertical turning center workbench |
| CN202527941U (en) * | 2012-03-19 | 2012-11-14 | 浙江嘉力宝精机股份有限公司 | Static pressure rotating table of forming gear grinding machine |
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2012
- 2012-12-04 CN CN201210511785.XA patent/CN102990372B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6487124A (en) * | 1987-06-16 | 1989-03-31 | Kurasunodarusukoe Sutankosutor | Working table for vertical rotary table type machine tool |
| WO2004061336A1 (en) * | 2003-01-06 | 2004-07-22 | Ulrich Rohs | Pressing device for tensioning two gearing elements, gearing provided with a pressing device of this type, and method for operating such a friction gearing |
| WO2005040945A1 (en) * | 2003-10-23 | 2005-05-06 | Sumitomo Heavy Industries, Ltd. | Stage device |
| EP1990128A1 (en) * | 2007-05-10 | 2008-11-12 | Star Micronics Co., Ltd. | Machine tool |
| CN201078557Y (en) * | 2007-09-29 | 2008-06-25 | 李颖仲 | Guide rail self-driving type circular turntable of three surfaces static pressure enclosing type |
| CN101347916A (en) * | 2008-08-07 | 2009-01-21 | 无锡开源机床集团有限公司 | Workstation structure for improved vertical grinder |
| CN102039527A (en) * | 2010-09-29 | 2011-05-04 | 中捷机床有限公司 | Open-type static pressure rotating table for controlling floating degree and manufacturing method thereof |
| CN201960349U (en) * | 2011-01-27 | 2011-09-07 | 上海三一精机有限公司 | Static pressure workbench |
| CN202336720U (en) * | 2011-12-06 | 2012-07-18 | 齐重数控装备股份有限公司 | High-end high-accuracy vertical turning center workbench |
| CN202527941U (en) * | 2012-03-19 | 2012-11-14 | 浙江嘉力宝精机股份有限公司 | Static pressure rotating table of forming gear grinding machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419028A (en) * | 2013-08-26 | 2013-12-04 | 苏州江源精密机械有限公司 | Large vertical lathe workbench with C axis function |
| CN103419028B (en) * | 2013-08-26 | 2015-08-19 | 苏州江源精密机械有限公司 | There is the large-scale vertical lathe workbench of C s function |
| CN104999284A (en) * | 2015-08-21 | 2015-10-28 | 烟台三维机床制造有限公司 | Heavy load straight tooth transmission full-closed loop high precision rotating table |
| CN104999284B (en) * | 2015-08-21 | 2017-07-04 | 烟台三维机床制造有限公司 | A kind of heavily loaded straight-tooth transmission closed-loop high-precision rotary working-table |
| CN115464424A (en) * | 2022-10-31 | 2022-12-13 | 沈阳马卡智工科技有限公司 | Five-axis machining center rotary worktable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102990372B (en) | 2014-12-17 |
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