CN102990372B - 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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- CN102990372B CN102990372B CN201210511785.XA CN201210511785A CN102990372B CN 102990372 B CN102990372 B CN 102990372B CN 201210511785 A CN201210511785 A CN 201210511785A CN 102990372 B CN102990372 B CN 102990372B
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- guiderail
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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 also exists that rotating speed is low, precision is low all to some extent, 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 caused because of temperature rise can make the precision of workbench wander away seriously, 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 bench, 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 made up 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 base, bull gear is contained in the outside of outer ring guide rail, its centering inner hole is enclosed within the centering external cylindrical surface of workbench bottom, upper surface and workbench bottom locating shaft shoulder rest 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 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 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 arranged in workbench centering inner hole, and its shaft shoulder lower surface is pressed on 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 top board outside form preloading hydrostatic slideway.
Closed-loop feedback arrangement is mounted in the Circular gratings assembly in workbench endoporus on top board end face.
The novel beneficial effect of the present invention is: the workbench of this heavy type numerical control vertical milling lathe can improve the rotating speed of workbench, precision and precision stability greatly, the caloric value of obvious reduction workbench, distortion and temperature, the table slide solving heavy type numerical control vertical milling lathe easily grinds the problem of wound, improve part working (machining) efficiency and the precision of heavy type numerical control vertical milling lathe, 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 30r/min.
Accompanying drawing explanation
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, Circular gratings assembly
9, top board 10, main shaft 11, static pressure grease chamber 12, hydrostatic bearing pad.
Detailed description of the invention
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 base 7, bull gear 2 is contained in the outside of outer ring guide rail 3, its centering inner hole is enclosed within the centering external cylindrical surface of workbench 1 bottom, upper surface and workbench 1 bottom locating shaft shoulder rest 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 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 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 core, and hydrostatic bearing pad 12 is arranged in workbench 1 centering inner hole, and its shaft shoulder lower surface is pressed on workbench 1 centering inner hole upper surface; Top board 9 lower surface and main shaft 10 upper surface tight joint, the static pressure grease chamber 11 being located at top board 9 outside forms preloading hydrostatic slideway with hydrostatic bearing pad 12 upper surface matched in clearance.
The structure of closed-loop feedback arrangement is: Circular gratings assembly 8 is arranged 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 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 oily, workbench 1 upwards floats, at outer ring circular guideway plate 4, in inner ring circular guideway plate 6 and workbench 1, static pressure oil film gap is formed between the guide rail of outer ring, static pressure oil film gap is formed between the static pressure grease chamber 11 and top board 9 of hydrostatic bearing pad 12 upper surface, top board 9 compresses hydrostatic bearing pad 12 and workbench 1 by static pressure oil film gap, top board 9 pairs of workbench 1 play the effect of static pressure pretension, improve in workbench 1, the oil film rigidity of outer two circle hydrostatic slideway and precision, main transmission box is rotated by gear drive bull gear 2, the actual position signal that workbench 1 rotates is fed back to digital control system by Circular gratings assembly 8, digital control system controls the position of rotation of workbench 1 by the rotation controlling main transmission box motor.
Claims (1)
1. a numerical control heavy type vertical milling machine workbench, it comprises base (7), main shaft (10), closed-loop feedback arrangement and bull gear (2), it is characterized in that: workbench (1) is contained on base (7), bull gear (2) is contained in the outside of outer ring guide rail (3), its centering inner hole is enclosed within the centering external cylindrical surface of workbench (1) bottom, upper surface and workbench (1) bottom locating shaft shoulder rest 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 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 inner ring hydrostatic slideway; 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 arranged in workbench (1) centering inner hole, and its shaft shoulder lower surface is pressed on workbench (1) centering inner hole upper surface; Top board (9) lower surface and main shaft (10) upper surface tight joint, be located at the outside static pressure grease chamber (11) of top board (9) and form preloading hydrostatic slideway with hydrostatic bearing pad (12) upper surface matched in clearance; Closed-loop feedback arrangement is mounted in the Circular gratings assembly (8) in workbench (1) endoporus on top board (9) end face; Inside and outside pair of circle hydrostatic slideway, hydrostatic spindle and closed-loop feedback arrangement form this workbench.
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 CN102990372A (en) | 2013-03-27 |
| CN102990372B true CN102990372B (en) | 2014-12-17 |
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| 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 |
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| Country | Link |
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| CN (1) | CN102990372B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN115464424B (en) * | 2022-10-31 | 2023-03-24 | 沈阳马卡智工科技有限公司 | Five machining center rotary worktable |
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| 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 |
| EP1990128A1 (en) * | 2007-05-10 | 2008-11-12 | Star Micronics Co., Ltd. | Machine tool |
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| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3819636A1 (en) * | 1987-06-16 | 1988-12-29 | Krasnod Stankostroitelnoe Proi | Table for a vertical turning and boring mill |
| AU2003300500A1 (en) * | 2003-01-06 | 2004-07-29 | 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 |
| JP4443891B2 (en) * | 2003-10-23 | 2010-03-31 | 住友重機械工業株式会社 | Stage equipment |
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- 2012-12-04 CN CN201210511785.XA patent/CN102990372B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102990372A (en) | 2013-03-27 |
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