CN203357015U - Base static pressure seal structure of high-precision vertical type workbench - Google Patents
Base static pressure seal structure of high-precision vertical type workbench Download PDFInfo
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- CN203357015U CN203357015U CN 201320437346 CN201320437346U CN203357015U CN 203357015 U CN203357015 U CN 203357015U CN 201320437346 CN201320437346 CN 201320437346 CN 201320437346 U CN201320437346 U CN 201320437346U CN 203357015 U CN203357015 U CN 203357015U
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- driven pulley
- static
- base
- fan
- workbench
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- 230000003068 static effect Effects 0.000 title claims abstract description 47
- 230000002706 hydrostatic effect Effects 0.000 claims description 29
- 238000005086 pumping Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a base static pressure seal structure of a high-precision vertical type workbench. A circular upward protrusion is arranged on the end face of a base (5), the diameter of the circular upward protrusion is greater than the outer diameter of a fan-shaped static pressure supporting block (7), and the circular upward protrusion and the fan-shaped static pressure supporting block (7) are coaxial; the lower surface of a driven wheel (3) is provided with a groove matched with the protrusion in shape; the protrusion and the groove constitute the seal structure. By the adoption of the technical scheme, the workbench forms high-rigidity and high tilting-moment-resisting closed static pressure supporting under the action of upper, lower and radial static pressure supporting force; as the driven wheel is supported by a high pressure oil film to move in the axial direction and the radial direction, and the base static pressure seal structure has the advantages of achieving high rotation precision, high rigidity, high vibration resistance, high tilting-moment resistance, the simple structure and small starting moment.
Description
Technical field
The utility model belongs to the technical field of mechanical production devices, relates to the workbench structure of big machinery machining tool.More particularly, the utility model relates to high-precision vertical table base hydrostatic seal structure.
Background technology
High-precision vertical workbench of the prior art, mostly adopt plane thrust bearing and radial roller bearing to support, its rotating accuracy is subject to the restriction of rolling bearing, be difficult to breakthrough raising, its precision order of magnitude is mostly at a few percent grade, and its absorbing poor performance, can not adapt to the processing of modern high-precision part, particularly, to the large-scale high-precision parts of the industries such as Aeronautics and Astronautics, wind-powered electricity generation, more can't meet its required precision.
The utility model content
The utility model provides high-precision vertical table base hydrostatic seal structure, its objective is the supporting precision that improves workbench.
To achieve these goals, the technical scheme that the utility model is taked is:
The high-precision vertical workbench that the utility model provides, comprise base, be arranged on the workbench on base, driving wheel and the driven pulley of external toothing mutually, described driven pulley is located at the below of described workbench, and described driven pulley coaxially is fixedly connected with described workbench;
Described base is provided with the circular bosses raised up, and described driven pulley is set with on described circular bosses by circular hole, and forms matched in clearance; Be provided with the circumference static-pressure oil chamber between the surface that described circular bosses coordinates with described driven pulley.
The shallow annular groove is set on the outer round surface of described circular bosses, and the bore area of described shallow annular groove and driven pulley forms described circumference static-pressure oil chamber; Described base is provided with oil duct, and described circumference static-pressure oil chamber is communicated with the workbench hydraulic system.
Dome external diameter and driven pulley endoporus leave certain interval, by design, get gap width.
On the shoulder horizontal plane of the base at described circular bosses place, establish fan-shaped static pressure back-up block; The lower surface of described driven pulley contacts with described fan-shaped static pressure back-up block; Between the lower surface of described driven pulley and fan-shaped static pressure back-up block one side upward, be provided with the static thrust pumping cavity.
Described fan-shaped static pressure back-up block one side upward is provided with fan-shaped shallow grooves, and the lower surface of described fan-shaped shallow grooves and described driven pulley forms described static thrust pumping cavity; Described base and described fan-shaped static pressure back-up block are provided with oil duct, and described circumference static-pressure oil chamber is communicated with the workbench hydraulic system.
Fan-shaped static pressure back-up block matched in clearance on shoulder face on the lower surface of described driven pulley and described base, get gap width by design.
The upper surface of described circular bosses is provided with pressure rings, and described pressure rings and circular bosses are fastenedly connected; The external diameter of described pressure rings is greater than described circular bosses;
The upper and lower end face of described driven pulley, with lower surface and the fan-shaped static pressure back-up block one side upward of described pressure rings, form matched in clearance;
Be provided with and press down static-pressure oil chamber between described pressure rings and described driven pulley matching surface.
The driven pulley upper surface forms matched in clearance with the pressure rings lower surface be screwed in the base upper surface, by design, gets gap width,
Described pressure rings one side down, be provided with circular-arc shallow grooves; Described circular-arc shallow grooves and the upper surface of driven pulley form the described static-pressure oil chamber that presses down; Described base and described pressure rings are provided with oil duct, and the described static-pressure oil chamber that presses down is communicated with the workbench hydraulic system.
The end face of described base is provided with raising up of annular, and the external diameter that the raising up of described annular radially is greater than fan-shaped hydrostatic support piece is also coaxial; The lower surface of described driven pulley is provided with the groove that matches with this convex shape; Described projection and groove form hermetically-sealed construction.
The lower surface of described workbench and the upper surface of described driven pulley adopt the seam fit structure; Described seam is annular, and with workbench, coaxial and diameter is greater than the external diameter of described pressure rings to this seam.
Described workbench hydraulic system provides the pressure oil of constant flow.
The utility model adopts technique scheme, and workbench has formed the closed type static pressure supporting of high rigidity, high resistance heeling moment under effect upper and lower and radially hydrostatic support power; Because driven pulley is axially, radially all move under the supporting in the high pressure oil film, there is high, the high rigidity of rotating accuracy, high vibration resistance, anti-heeling moment is strong, simple in structure and staring torque is little; Fan-shaped hydrostatic support piece adopts sector structure, on an anchor ring, a plurality of secter pats can be installed, and forms the heavy wool chamber and supports, and has greatly improved the ability of the anti-disturbing moment of hydrostatic support, has reduced difficulty of processing simultaneously; Pressure rings is opened static-pressure oil chamber on annulus, has facilitated installation and the gap adjustment of closed hydrostatic slideway; The utility model is specially adapted to vertical working main shaft and the rotary table of high-precision vertical lathe, vertical grinder and gear hobbing gear grinding machines, and its precision order of magnitude, within the some thousandths of millimeter, can meet the needs of the industry developments such as Aeronautics and Astronautics, wind-powered electricity generation.
The accompanying drawing explanation
The utility model comprises the following drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the fan-shaped hydrostatic support block structure schematic diagram in the utility model;
Fig. 3 is the pressure rings structural representation in the utility model;
Fig. 4 is circumference static-pressure oil chamber in the utility model and the oil circuit schematic diagram of static thrust pumping cavity;
Fig. 5 is the oil circuit schematic diagram that presses down static-pressure oil chamber in the utility model.
In figure, be labeled as:
1, workbench, 2, high-strength screw, 3, driven pulley, 4, driving wheel, 5, base, 6, the circumference static-pressure oil chamber, 7, fan-shaped hydrostatic support piece, 8, the static thrust pumping cavity, 9, pressure rings, 10, press down static-pressure oil chamber, 11, circular bosses.
The specific embodiment
Below contrast accompanying drawing, by the description to embodiment, the specific embodiment of the present utility model is described in further detail, to help those skilled in the art, inventive concept of the present utility model, technical scheme are had to more complete, accurate and deep understanding.
Structure of the present utility model as expressed as Fig. 1 is a kind of high precision constant current enclosed pitot-static pressure vertical working platform bottom surface hydrostatic seal structure.Described vertical working platform comprises base 5, is arranged on the workbench 1 on base 5, driving wheel 4 and the driven pulley 3 of external toothing mutually, and described driven pulley 3 is located at the below of described workbench 1, and described driven pulley 3 coaxially is fixedly connected with described workbench 1.
Workbench 1 adopts high-strength screw 2 and driven pulley 3 to be fastenedly connected at its lower surface, by intermeshing driving wheel 4, drives its rotation, the main motion of the platform 1 of finishing the work, and clamping workpiece on workbench, realize the machining to workpiece.
In order to solve the problem that prior art exists and to overcome its defect, realize improving the goal of the invention of the supporting precision of workbench, the technical scheme that the utility model is taked is:
As shown in Figure 1:
High-precision vertical workbench of the present utility model, its base 5 is provided with the circular bosses 11 raised up, and described driven pulley 3 is set with on described circular bosses 11 by circular hole, and forms matched in clearance; Be provided with circumference static-pressure oil chamber 6 between the surface that described circular bosses 11 coordinates with described driven pulley 3.
As shown in Figure 4, the shallow annular groove is set on the outer round surface of described circular bosses 11, the bore area of described shallow annular groove and driven pulley 3 forms described circumference static-pressure oil chamber 6; Described base 5 is provided with oil duct, and described circumference static-pressure oil chamber 6 is communicated with the workbench hydraulic system.
Driven pulley 3 is sleeved on the circular bosses 11 of base 5, has circumference static-pressure oil chamber 6 on the external peripheral surface of circular bosses 11, and the endoporus of the external diameter of dome platform 11 and driven pulley 3 leaves certain interval, and gets gap width by design.
The pressure oil of the constant flow provided when the workbench hydraulic system is by the fuel feed hole of base 5 bottom surfaces, just formed one deck high pressure oil film while entering circumference static-pressure oil chamber 6, by the effect of pressure oil, driven pulley 3 is suspended diametrically, formed high-intensity radially hydrostatic support.
As shown in Figure 2:
On the shoulder horizontal plane of the base 5 at described circular bosses 11 places, establish fan-shaped static pressure back-up block 7; The lower surface of described driven pulley 3 contacts with described fan-shaped static pressure back-up block 7; Between the lower surface of described driven pulley 3 and fan-shaped static pressure back-up block 7 one side upward, be provided with static thrust pumping cavity 8.
As shown in Figure 4, described fan-shaped static pressure back-up block 7 one side upward is provided with fan-shaped shallow grooves, and the lower surface of described fan-shaped shallow grooves and described driven pulley 3 forms described static thrust pumping cavity 8; Described base 5 and described fan-shaped static pressure back-up block 7 are provided with oil duct, and described circumference static-pressure oil chamber 6 is communicated with the workbench hydraulic system.
Fan-shaped static pressure back-up block 7 matched in clearance on shoulder face on the lower surface of described driven pulley 3 and described base 5, get gap width by design.
When the fuel feed hole when the pressure oil of the constant flow that the workbench hydraulic system provides by base 5 enters the static thrust pumping cavity 8 on fan-shaped static pressure back-up block 7, under the effect of pressure oil, driven pulley 3 upwards suspends, and forms high strength axial thrust hydrostatic support.
Fan-shaped static pressure back-up block 7 adopts sector structure, on an anchor ring, a plurality of secter pats can be installed, and forms the heavy wool chamber and supports, and has greatly improved the ability of the anti-disturbing moment of hydrostatic support, simplifies simultaneously and facilitate its processing technology, reduces difficulty of processing.
As shown in Figure 3:
The upper surface of described circular bosses 11 is provided with pressure rings 9, and described pressure rings 9 is fastenedly connected with circular bosses 11; The external diameter of described pressure rings 9 is greater than described circular bosses 11;
The upper and lower end face of described driven pulley 3, with lower surface and fan-shaped static pressure back-up block 7 one side upward of described pressure rings 9, form matched in clearance;
Be provided with and press down static-pressure oil chamber 10 between described pressure rings 9 and described driven pulley 3 matching surfaces.
As shown in Figure 5, described pressure rings 9 one side down, be provided with circular-arc shallow grooves; Described circular-arc shallow grooves and the upper surface of driven pulley 3 form the described static-pressure oil chamber 10 that presses down; Described base 5 and described pressure rings 9 are provided with oil duct, and the described static-pressure oil chamber 10 that presses down is communicated with the workbench hydraulic system.
The upper surface of driven pulley 3 forms matched in clearance with the lower surface that is screwed the pressure rings 9 on base 5 upper surfaces, and gets gap width by design.
Be arranged on the pressure rings 9 of annular pressing down static-pressure oil chamber 10, facilitated installation and the gap adjustment of closed hydrostatic slideway.
The pressure oil of the constant flow provided when the workbench hydraulic system is by fuel feed hole, enter on pressure rings 9 press down static-pressure oil chamber 10 time, due to the effect of pressure oil, driven pulley 3 has been subject to the static pressure support force pressed down, and forms the hydrostatic support that high strength axially presses down.
In sum, work spindle and the workbench of the vertical machine that the above-mentioned constant current enclosed pitot-static pressure that the utility model provides supports, be specially adapted to high rotating accuracy, high vibration resistance, anti-heeling moment is strong, staring torque is little, and simple in structure high-precision vertical lathe, vertical grinder and gear hobbing, working-spindle and the rotary table of grinding machine bed.Its precision order of magnitude, within the some thousandths of millimeter, can meet the needs of the industry developments such as Aeronautics and Astronautics, wind-powered electricity generation.
The inner hole sleeve of driven pulley 3, on the oil pocket dome of base 5, forms the radially matched in clearance of hydrostatic bearing; The lower surface of driven pulley 3 and base 5 dome circular bead surface oil pocket fan pieces form the matched in clearance of axial thrust hydrostatic support; The upper surface of driven pulley 3 and the oil pocket pressure rings that is fixed in base 5 dome upper surfaces form the matched in clearance of axial thrust hydrostatic support.
Now, the upper and lower end face of driven pulley 3 and endoporus are all in hydrostatic support, and it has formed high rigidity under effect upper and lower and radially hydrostatic support power, the enclosed pitot-static pressure supporting of high resistance heeling moment.Because driven pulley 3 is all to turn round under the bearing state in the high pressure oil film at axial-radial, had advantages of that the high vibration resistance of high rigidity and the little rotating accuracy of staring torque are high, be specially adapted to high accuracy, to resistance to shock and anti-heeling moment, require high grinding machine, lathe, gear-hobbing machine to use.
As shown in Figure 1, Figure 4 and Figure 5:
The end face of described base 5 is provided with raising up of annular, and the external diameter that the raising up of described annular radially is greater than fan-shaped hydrostatic support piece 7 is also coaxial; The lower surface of described driven pulley 3 is provided with the groove that matches with this convex shape; Described projection and groove form hermetically-sealed construction.
Said structure, guarantee can not leak into job site from workbench from the pressure oil of fan-shaped hydrostatic support piece 7 and 6 leakages of circumference static-pressure oil chamber.
As shown in Figure 1, Figure 4 and Figure 5:
The upper surface of the lower surface of described workbench 1 and described driven pulley 3 adopts the seam fit structure; Described seam is annular, and with workbench, coaxial and diameter is greater than the external diameter of described pressure rings 9 to this seam.
Said structure, guarantee the pressure oil leaked from pressing down static-pressure oil chamber 10 and circumference static-pressure oil chamber 6, can not leak into job site from workbench.
Because the utility model has only formed a set of rotary table by five large parts, take full advantage of the advanced feature of static pressure technology, greatly simplify the structure and assembly technology.Its concrete matching requirements are as follows:
1, load onto fan-shaped static pressure back-up block 7 on the shoulder face of base 5, and, with after screw fastening, repair the upper surface of scraping fan-shaped static pressure back-up block 7, guarantee that its flatness error is less than 0.01mm;
2, driven pulley 3 is enclosed within on the circular bosses 11 of base 5, and makes its lower surface and the 7 upper surface laminatings of fan-shaped static pressure back-up block, measures the upper surface of driven pulley 3 and the distance of base 5 end faces, makes it equal the static pressure oil clearance of twice; If undesirable, end face that can scraping base 5, until qualified;
3, workbench 1 is installed in the seam of driven pulley 3, and be fastenedly connected with high-strength screw 2 and driven pulley 3, completed the assembling of static pressure rotary worktable;
4, a whole set of rotary table assembled is put on the lathe bed of lathe, itself and driving wheel 4 is meshed, and use bolted, load onto the static pressure oil circuit, can come into operation.
The above is exemplarily described the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (5)
1. high-precision vertical table base hydrostatic seal structure, described vertical working platform comprises base (5), is arranged on the workbench (1) on base (5), driving wheel (4) and the driven pulley (3) of external toothing mutually, described driven pulley (3) is located at the below of described workbench (1), and described driven pulley (3) coaxially is fixedly connected with described workbench (1);
It is characterized in that:
Described base (5) is provided with the circular bosses (11) raised up, and it is upper that described driven pulley (3) is set with described circular bosses (11) by circular hole, and forms matched in clearance;
Be provided with circumference static-pressure oil chamber (6) between the surface that described circular bosses (11) coordinates with described driven pulley (3);
On the shoulder horizontal plane of the base (5) at described circular bosses (11) place, establish fan-shaped static pressure back-up block (7);
The lower surface of described driven pulley (3) contacts with described fan-shaped static pressure back-up block (7);
Between the lower surface of described driven pulley (3) and fan-shaped static pressure back-up block (7) one side upward, be provided with static thrust pumping cavity (8);
Described fan-shaped static pressure back-up block (7) one side upward is provided with fan-shaped shallow grooves, and the lower surface of described fan-shaped shallow grooves and described driven pulley (3) forms described static thrust pumping cavity (8);
Described base (5) and described fan-shaped static pressure back-up block (7) are provided with oil duct, and described circumference static-pressure oil chamber (6) is communicated with the workbench hydraulic system;
The end face of described base (5) is provided with raising up of annular, and the external diameter that the raising up of described annular radially is greater than fan-shaped hydrostatic support piece (7) is also coaxial;
The lower surface of described driven pulley (3) is provided with the groove that matches with this convex shape; Described projection and groove form hermetically-sealed construction.
2. according to high-precision vertical table base hydrostatic seal structure claimed in claim 1, it is characterized in that:
On the outer round surface of described circular bosses (11), the shallow annular groove is set, the bore area of described shallow annular groove and driven pulley (3) forms described circumference static-pressure oil chamber (6);
Described base (5) is provided with oil duct, and described circumference static-pressure oil chamber (6) is communicated with the workbench hydraulic system.
3. according to the described high-precision vertical table base of claim 1 or 2 hydrostatic seal structure, it is characterized in that:
The upper surface of described circular bosses (11) is provided with pressure rings (9), and described pressure rings (9) is fastenedly connected with circular bosses (11);
The external diameter of described pressure rings (9) is greater than described circular bosses (11);
The upper and lower end face of described driven pulley (3), with lower surface and fan-shaped static pressure back-up block (7) one side upward of described pressure rings (9), form matched in clearance;
Be provided with and press down static-pressure oil chamber (10) between described pressure rings (9) and described driven pulley (3) matching surface.
4. according to high-precision vertical table base hydrostatic seal structure claimed in claim 3, it is characterized in that:
Described pressure rings (9) one side down, be provided with circular-arc shallow grooves;
Described circular-arc shallow grooves and the upper surface of driven pulley (3) form the described static-pressure oil chamber (10) that presses down;
Described base (5) and described pressure rings (9) are provided with oil duct, and the described static-pressure oil chamber (10) that presses down is communicated with the workbench hydraulic system.
5. according to high-precision vertical table base hydrostatic seal structure claimed in claim 3, it is characterized in that:
The upper surface of the lower surface of described workbench (1) and described driven pulley (3) adopts the seam fit structure;
Described seam is annular, and with workbench, coaxial and diameter is greater than the external diameter of described pressure rings (9) to this seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320437346 CN203357015U (en) | 2013-07-22 | 2013-07-22 | Base static pressure seal structure of high-precision vertical type workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320437346 CN203357015U (en) | 2013-07-22 | 2013-07-22 | Base static pressure seal structure of high-precision vertical type workbench |
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| Publication Number | Publication Date |
|---|---|
| CN203357015U true CN203357015U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320437346 Withdrawn - After Issue CN203357015U (en) | 2013-07-22 | 2013-07-22 | Base static pressure seal structure of high-precision vertical type workbench |
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| Country | Link |
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| CN (1) | CN203357015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406768A (en) * | 2013-07-22 | 2013-11-27 | 芜湖陀曼精机科技有限公司 | High-precision vertical workbench base hydrostatic sealing structure |
-
2013
- 2013-07-22 CN CN 201320437346 patent/CN203357015U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406768A (en) * | 2013-07-22 | 2013-11-27 | 芜湖陀曼精机科技有限公司 | High-precision vertical workbench base hydrostatic sealing structure |
| CN103406768B (en) * | 2013-07-22 | 2015-06-10 | 芜湖陀曼精机科技有限公司 | High-precision vertical workbench base hydrostatic sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Chaojie Inventor after: Pei Chongwen Inventor after: Wang Xinwen Inventor after: Lv Yaguang Inventor after: Yu Tao Inventor before: Yu Chaojie Inventor before: Pei Chongwen Inventor before: Wang Xinwen Inventor before: Lv Ya Inventor before: Yu Tao |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YU CHAOJIE PEI CHONGWEN WANG XINWEN LV YA YU TAO TO: YU CHAOJIE PEI CHONGWEN WANG XINWEN LV YAGUANG YU TAO |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20150610 |
|
| RGAV | Abandon patent right to avoid regrant |