CN102990473A - Oil film thickness measuring device for operating platform - Google Patents
Oil film thickness measuring device for operating platform Download PDFInfo
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- CN102990473A CN102990473A CN201210468227XA CN201210468227A CN102990473A CN 102990473 A CN102990473 A CN 102990473A CN 201210468227X A CN201210468227X A CN 201210468227XA CN 201210468227 A CN201210468227 A CN 201210468227A CN 102990473 A CN102990473 A CN 102990473A
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- oil film
- workbench
- film thickness
- oil
- thickness measuring
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Abstract
The invention discloses an oil film thickness measuring device for an operating platform. The oil film thickness measuring device comprises a base (7), wherein the base (7) is provided with a guide rail plate (8), oil film detection nozzles (6) are arranged on the guide rail plate (8), connected with the guide rail plate (8) by virtue of a screw thread (10) and connected with throttle valves (4), the throttle valves (4) are connected with a pressure relay (3), the other end of the pressure relay (3) is connected with a precision oil filter (2), and the precision oil filter (2) is connected with an overflow valve (1); and a three-point pressure gauge (5) is connected with the oil film thickness detection nozzle (6). Pressure oil is introduced between the operating platform and the base (1), a small nozzle oil hydraulic system is started, three high-speed high-pressure jet flows are sprayed to the lower bottom surface of the operating platform, and the distance between the lower bottom surface of the operating platform and the base (1) can be fed back by the three-point pressure gauge (5).
Description
Technical field
The present invention relates to the lubricating system of lathe, relate in particular to the measuring thickness device of oil film.
Background technology
Heavy vertical lathe is applicable to the inside and outside circle cylinder, the inside and outside circle conical surface, end face, grooving, screw thread, surface of revolution of machining large, heavy parts etc., is indispensable a kind of process equipment in processing industry.
Because the carrying of the type platen all is large-scale, heavy parts, and most pts wt secundly, the secondary constant-current static-pressure guide rail that adopts of table slide, by multiple spot gear separator fuel feeding, before the workbench operation and in the running, pressure oil produces one deck static pressure oil film, makes to be in the neat liquid Frotteurism between the guideway.Hydrostatic slideway has the effect that bearing capacity is large, static and dynamic friction coefficient is low and have the error homogenizing, thereby generally uses on heavy vertical lathe.
Heavy vertical lathe table slide pair will pull guide rail even damage when oil starvation or oil film thickness are lower than certain numerical value.
Summary of the invention
In order to solve problems of the prior art, the invention provides a kind of workbench oil film thickness measuring apparatus.
The workbench oil film thickness measuring apparatus, described oil film thickness measuring apparatus comprises base 7, is provided with guide-rail plate 8 on the described base 7, and Oil spill detection nozzle 6 is arranged on the guide-rail plate 8, and described Oil spill detection nozzle 6 is connected by screw thread 10 with guide-rail plate 8; Described Oil spill detection nozzle 6 links to each other with choke valve 4, and choke valve 4 links to each other with pressure switch 3, and the other end of pressure switch 3 connects precise oil filter 2, and precise oil filter 2 is connected with overflow valve 1; Described oil film thickness measuring nozzle 6 is connected with three point force table 5.
When passing into pressure oil between workbench and the base 1, the small nozzle oil hydraulic system starts, and 3 strands of high speed and high pressure jets spray to the bottom surface of workbench, and the distance between workbench bottom surface and the base 1 can be by three point force table 5 feedback of nozzle.
Described three point force table 5 is provided with red color area 11, yellow region 12,13 3 operation intervals in green district, when gauge hand refers to illustrate that oil films are too thin or do not have oil film in red color area 11; When gauge hand refers at yellow region 12 explanation oil films thin; When gauge hand refers in green district 13, illustrate that workbench floats normally.
When pointer referred in red color area 11 or yellow region 12, the static pressure fuel feeding motor that pressure switch 3 will signal to workbench continued to improve forced feed, until the green district 13 of pointed; Only have the pointer when 3 all to refer to just allow to enter duty in the green district.
Described overflow valve 1 setting pressure is 2MPa.
The pressure limit of described three point force table 5 is 1 MPa.
Oil film thickness measuring apparatus of the present invention do not need to be applicable to the heavy machine tool of accurate measurement workbench floatation volume.Whether this device at any time and exactly surveying work table flotation rises normally, guarantees platen parts run stability and reliability.
Description of drawings
Fig. 1 is the structural representation that the nozzle of workbench oil film thickness measuring apparatus of the present invention is installed.
Fig. 2 is the hydraulic system principle figure of workbench oil film thickness measuring apparatus of the present invention.
Fig. 3 is the front view of the three point force table of workbench oil film thickness measuring apparatus of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
As shown in Figure 1, the workbench oil film thickness measuring apparatus, described oil film thickness measuring apparatus comprises base 7, is provided with guide-rail plate 8 on the described base 7, and Oil spill detection nozzle 6 is arranged on the guide-rail plate 8, and described Oil spill detection nozzle 6 is connected by screw thread 10 with guide-rail plate 8.
As shown in Figure 2, described Oil spill detection nozzle 6 links to each other with choke valve 4, and choke valve 4 links to each other with pressure switch 3, and the other end of pressure switch 3 connects precise oil filter 2, and precise oil filter 2 is connected with overflow valve 1; Described oil film thickness measuring nozzle 6 is connected with three point force table 5.
When passing into pressure oil between workbench and the base 1, the small nozzle oil hydraulic system starts, and 3 strands of high speed and high pressure jets spray to the bottom surface of workbench, and the distance between workbench bottom surface and the base 1 can be by three point force table 5 feedback of nozzle.
As shown in Figure 3, described three point force table 5 is provided with red color area 11, yellow region 12,13 3 operation intervals in green district, when gauge hand refers to illustrate that oil films are too thin or do not have oil film in red color area 11; When gauge hand refers at yellow region 12 explanation oil films thin; When gauge hand refers in green district 13, illustrate that workbench floats normally.
When pointer referred in red color area 11 or yellow region 12, the static pressure fuel feeding motor that pressure switch 3 will signal to workbench continued to improve forced feed, until the green district 13 of pointed; Only have the pointer when 3 all to refer to just allow to enter duty in the green district.
Described overflow valve 1 setting pressure is 2MPa.
The pressure limit of described three point force table 5 is 1 MPa.
Oil film thickness measuring apparatus of the present invention do not need to be applicable to the heavy machine tool of accurate measurement workbench floatation volume.Whether this device at any time and exactly surveying work table flotation rises normally, guarantees platen parts run stability and reliability.
Claims (6)
1. workbench oil film thickness measuring apparatus, it is characterized in that: described oil film thickness measuring apparatus comprises base (7), be provided with guide-rail plate (8) on the described base (7), Oil spill detection nozzle (6) is arranged on the guide-rail plate (8), and described Oil spill detection nozzle (6) is connected by screw thread (10) with guide-rail plate (8); Described Oil spill detection nozzle (6) links to each other with choke valve (4), and choke valve (4) links to each other with pressure switch (3), and the other end of pressure switch (3) connects precise oil filter (2), and precise oil filter (2) is connected with overflow valve (1); Described oil film thickness measuring nozzle (6) is connected with three point force table (5).
2. workbench oil film thickness measuring apparatus according to claim 1, it is characterized in that: when passing into pressure oil between workbench and the base (1), the small nozzle oil hydraulic system starts, 3 strands of high speed and high pressure jets spray to the bottom surface of workbench, and the distance between workbench bottom surface and the base (1) can be by three point force table (5) feedback of nozzle.
3. workbench oil film thickness measuring apparatus according to claim 1 and 2, it is characterized in that: described three point force table (5) is provided with red color area (11), yellow region (12), (13) three operation intervals in green district, when gauge hand refers to illustrate that oil film is too thin or do not have oil film in red color area (11); When gauge hand refers to illustrate that in yellow region (12) oil film is thin; When gauge hand refers to illustrate that in green district (13) workbench floats normally.
4. workbench oil film thickness measuring apparatus according to claim 3, it is characterized in that: when pointer refers in red color area (11) or yellow region (12), the static pressure fuel feeding motor that pressure switch (3) will signal to workbench continues to improve forced feed, until the green district of pointed (13); Only have the pointer when 3 all to refer to just allow to enter duty in the green district.
5. workbench oil film thickness measuring apparatus according to claim 1, it is characterized in that: described overflow valve (1) setting pressure is 2MPa.
6. workbench oil film thickness measuring apparatus according to claim 1, it is characterized in that: the pressure limit of described three point force table (5) is 1 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210468227XA CN102990473A (en) | 2012-11-20 | 2012-11-20 | Oil film thickness measuring device for operating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210468227XA CN102990473A (en) | 2012-11-20 | 2012-11-20 | Oil film thickness measuring device for operating platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102990473A true CN102990473A (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210468227XA Pending CN102990473A (en) | 2012-11-20 | 2012-11-20 | Oil film thickness measuring device for operating platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN102990473A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005324277A (en) * | 2004-05-13 | 2005-11-24 | Toyota Motor Corp | Clamp device and clamping confirmation method therefor |
| CN201455668U (en) * | 2009-07-08 | 2010-05-12 | 路文忠 | Liquid discontinuous flowing precise circular turntable static pressure guide rail by using sealing piece |
| CN102009353A (en) * | 2010-10-19 | 2011-04-13 | 武汉重型机床集团有限公司 | Variable constant-current static pressure guide rail and control method |
| CN201960349U (en) * | 2011-01-27 | 2011-09-07 | 上海三一精机有限公司 | Static pressure workbench |
-
2012
- 2012-11-20 CN CN201210468227XA patent/CN102990473A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005324277A (en) * | 2004-05-13 | 2005-11-24 | Toyota Motor Corp | Clamp device and clamping confirmation method therefor |
| CN201455668U (en) * | 2009-07-08 | 2010-05-12 | 路文忠 | Liquid discontinuous flowing precise circular turntable static pressure guide rail by using sealing piece |
| CN102009353A (en) * | 2010-10-19 | 2011-04-13 | 武汉重型机床集团有限公司 | Variable constant-current static pressure guide rail and control method |
| CN201960349U (en) * | 2011-01-27 | 2011-09-07 | 上海三一精机有限公司 | Static pressure workbench |
Non-Patent Citations (1)
| Title |
|---|
| 赵明等: "重型数控立车工作台静压计算", 《机械工程学报》, no. 09, 15 September 2009 (2009-09-15) * |
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Application publication date: 20130327 |