CN102000987A - Hydraulic clamping device for numerical control rotary table - Google Patents
Hydraulic clamping device for numerical control rotary table Download PDFInfo
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- CN102000987A CN102000987A CN2010105675503A CN201010567550A CN102000987A CN 102000987 A CN102000987 A CN 102000987A CN 2010105675503 A CN2010105675503 A CN 2010105675503A CN 201010567550 A CN201010567550 A CN 201010567550A CN 102000987 A CN102000987 A CN 102000987A
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- rotary table
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Abstract
The invention relates to a clamping device, in particular to a hydraulic clamping device for a numerical control rotary table. The device comprises a clamping hydraulic pipeline and clamping bodies, wherein the clamping hydraulic pipeline consists of an upper clamping hydraulic pipeline and a lower clamping hydraulic pipeline which are positioned above and below the rotary table respectively and arranged symmetrically; a liquid pressure distribution unit is arranged at the liquid inlets of the upper clamping hydraulic pipeline and the lower clamping hydraulic pipeline; a liquid storage cavity is formed in the liquid pressure distribution unit; the liquid storage cavity is provided with two liquid outlets distributed symmetrically; the liquid inlets of the upper clamping hydraulic pipeline and the lower clamping hydraulic pipeline are connected with the two liquid outlets of the liquid storage cavity respectively; the clamping bodies are arranged between the liquid outlets of the upper clamping hydraulic pipeline and the lower clamping hydraulic pipeline and the rotary table respectively; the clamping bodies comprise an elastic clamping body and a hydraulic clamping body; the hydraulic clamping body is provided with two hydraulic cavities, the two hydraulic cavities are positioned above and below the rotary table respectively and formed symmetrically, one end of each of the hydraulic cavities is connected with the clamping hydraulic pipeline, and the corresponding other end of the hydraulic cavity is connected with the elastic clamping body; and the elastic clamping body is directly contacted with the rotary table.
Description
Technical field
The present invention relates to a kind of clamping device, especially a kind of hydraulic clamp that is used for numerical control rotating platform.
Background technology
At present, the clamping of Digit Control Machine Tool rotary table is to adopt oil cylinder clamping device, single cylinder bidirectional hydraulic clamping device or wedge panel formula hydraulic clamp mostly, and the clamping mode of these clamping devices generally is divided into single face and clamps or two-sided clamping.Mainly there is following defective in existing clamping device: at first, clamping device generally all comprises oil cylinder, piston and clamp mechanism, directly causes the clamping device complex structure, and its manufacturing, installation and maintenance are cumbersome, have improved the manufacturing cost of clamping device greatly; The second, the size of clamping force is generally by the decision of oil cylinder and piston size, so the size of clamping force is subjected to the restriction of oil cylinder and piston size, and therefore existing clamping device can not provide bigger clamping force; The 3rd, no matter be that mechanical type clamps or fluid pressure type clamps, all be to realize that by an oil cylinder single face clamps or two-sided up and down clamping, the clamping mode of clamping device is generally fixed, and the flatness of rotary table can not be identical, can produce during rotation and fluctuate, thereby cause each clamping point of clamping device the unbalanced problem of clamping force to occur, cause the deformation and the displacement of workbench, make workbench that corner or position change take place when clamping, influenced machine tool accuracy greatly.
Summary of the invention
The objective of the invention is to propose a kind of numerical control rotating platform hydraulic clamp, this apparatus structure is simple, and cost is low, can fluctuate and realizes the autobalance of clamping force and following clamping force with rotary table, has improved the precision of Digit Control Machine Tool.
The present invention adopts following technical scheme to realize: a kind of numerical control rotating platform hydraulic clamp, this device comprises clamping hydraulic pipeline and clamping body, wherein, described clamping hydraulic pipeline is by the above and below that lays respectively at rotary table and be symmetrically arranged and go up the clamping hydraulic pipeline and following clamping hydraulic pipeline is formed, the inlet place of last clamping hydraulic pipeline and following clamping hydraulic pipeline is provided with the fluid pressure allocation units, a liquid storage cylinder is set in the fluid pressure allocation units, liquid storage cylinder is provided with the liquid outlet of two symmetrical distributions, the inlet of last clamping hydraulic pipeline and following clamping hydraulic pipeline is connected with two liquid outlets of this liquid storage cylinder respectively, between the liquid outlet of last clamping hydraulic pipeline and following clamping hydraulic pipeline and the rotary table clamping body is set respectively, clamping body comprises elasticity clamping body and hydraulic clamp body, the hydraulic clamp body is provided with two hydraulic cavities, two hydraulic cavities lay respectively at the above and below of rotary table and are and are symmetrical arranged, one end of hydraulic cavities is connected with the clamping hydraulic pipeline, the corresponding other end is connected with the elasticity clamping body, and the elasticity clamping body directly contacts with rotary table.
Among the present invention, the elasticity clamping body can comprise flexible pressure plate and contact friction plate, the flexible pressure plate directly contacts with rotary table, and the contact friction plate is positioned at the outside of flexible pressure plate and fixedlys connected with the flexible pressure plate, fixedlys connected with hydraulic cavities in the outside of contact friction plate.
Described flexible pressure plate and contact friction plate can be integral structure, also can be fixedly connected by modes such as bolts.
The periphery outside of described flexible pressure plate can be provided with pressing plate, fixedlys connected with pressing plate by trip bolt in the inside edge of contact friction plate.
On the described rotary table a plurality of clamping points can be set, the above and below of each clamping point all is provided with clamping device.
The invention has the beneficial effects as follows: the present invention adopts two clamping hydraulic pipelines to pressurize simultaneously to the clamping up and down of rotary table, replaced using in the prior art hydraulic cylinder to realize that pressurization clamps up and down, make the last clamping hydraulic pipeline and the fluid pressure in the following clamping hydraulic pipeline of same clamping point equate, the clamping force up and down of rotary table is in poised state all the time, simultaneously under the drive of elasticity clamping body, the clamping hydraulic pipeline can be with the rotary table adjustment that fluctuates, can the rotary table generation be creeped, improve the precision of Digit Control Machine Tool because of fixing to clamp; Simultaneously, this device need not labyrinths such as piston and hydraulic cylinder, and is simple in structure, be convenient to make and maintenance, and manufacturing and maintenance cost is low, and fault rate is low; In addition, the clamping force of this clamping device is not subjected to the restriction of oil cylinder and piston size, and bigger clamping force can be provided, and clamps effective.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, rotary table; 2, hydraulic cavities; 3, hydraulic clamp body; 4, go up the clamping hydraulic pipeline; 5, fluid pressure allocation units; 6, following clamping hydraulic pipeline; 7, flexible pressure plate; 8, contact friction plate; 9, trip bolt; 10, pressing plate.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, a plurality of clamping points are set on the rotary table 1, hydraulic clamp all is set on each clamping point.Hydraulic clamp comprises clamping hydraulic pipeline and clamping body.Wherein the clamping hydraulic pipeline is by the above and below that lays respectively at rotary table 1 and be symmetrically arranged and go up clamping hydraulic pipeline 4 and following clamping hydraulic pipeline 6 is formed.The inlet place of last clamping hydraulic pipeline 4 and following clamping hydraulic pipeline 6 is provided with fluid pressure allocation units 5, a liquid storage cylinder is set in the fluid pressure allocation units 5, liquid storage cylinder is provided with the liquid outlet of two symmetrical distributions, the inlet of last clamping hydraulic pipeline 4 and following clamping hydraulic pipeline 6 is connected with two liquid outlets of this liquid storage cylinder respectively, liquid flows out the back and divides two-way to enter simultaneously in clamping hydraulic pipeline 4 and the following clamping hydraulic pipeline 6 from liquid storage cylinder, thereby the upper surface and the lower surface of rotary table 1 applied clamping force simultaneously.Between the liquid outlet of last clamping hydraulic pipeline 4 and following clamping hydraulic pipeline 6 and the rotary table 1 clamping body is set respectively.
The above and below of rotary table 1 each clamping point all is provided with clamping body, and clamping body is corresponding with the liquid outlet of last clamping hydraulic pipeline 4 and following clamping hydraulic pipeline 6 respectively.Clamping body comprises elasticity clamping body and hydraulic clamp body 3.Hydraulic clamp body 3 is provided with two hydraulic cavities, 2, two hydraulic cavities 2 and lays respectively at the above and below of rotary table 1 and be and be symmetrical arranged.One end of hydraulic cavities 2 is connected with the clamping hydraulic pipeline, and the corresponding other end is connected with the elasticity clamping body.
The elasticity clamping body comprises flexible pressure plate 7, contact friction plate 8 and pressing plate 10, flexible pressure plate 7 directly contacts with rotary table 1, surface irregularity when rotary table 1, make rotary table 1 produce in rotary course when fluctuating, flexible pressure plate 7 can be followed rotary table 1 and be fluctuated together.Pressing plate 10 is positioned at the periphery outside of flexible pressure plate 7, contact friction plate 8 is positioned at the outside of flexible pressure plate 7 and pressing plate 10, fixedly connected with pressing plate 10 by trip bolt 9 in contact friction plate 8 inside edges, simultaneously contact friction plate 8 by with 7 foundings of flexible pressure plate be one, thereby fixedly connected with flexible pressure plate 7.The outside of contact friction plate 8 is connected with hydraulic cavities 2.The clamping hydraulic pipeline by hydraulic clamp body 3 and elasticity clamping body to rotary table 1 upper surface and lower surface apply clamping force respectively, thereby played the effect that clamps braking.
When utilizing this clamping device to realize clamping, hydraulic pump provides the liquid that has certain pressure, enter fluid pressure allocation units 5 through the electromagnetic distribution valve, liquid divides two-way to enter simultaneously in clamping hydraulic pipeline 4 and the following clamping hydraulic pipeline 6 from the liquid storage cylinder outflow back of fluid pressure allocation units 5, and the pressure of the two-way liquid after 5 distribution are flowed out through the fluid pressure allocation units simultaneously equates.When the liquid in one of them clamping hydraulic pipeline meets obstructions when causing fluid pressure in this pipeline to raise, principle according to the pressure transmission, fluid pressure allocation units 5 can pass to another clamping hydraulic pipeline by liquid storage cylinder automatically with the fluid pressure that raises, fluid pressure in clamping hydraulic pipeline 4 and the following clamping hydraulic pipeline 6 is equated all the time, the elasticity clamping body can make the clamping hydraulic pipeline fluctuate with rotary table simultaneously, thereby on having realized, down two clamping hydraulic pipelines to rotary table 1 position from motion tracking, suffered last clamping force and the following clamping force of rotary table equates all the time simultaneously, improved the precision of Digit Control Machine Tool.
Claims (5)
1. numerical control rotating platform hydraulic clamp, this device comprises clamping hydraulic pipeline and clamping body, it is characterized in that: described clamping hydraulic pipeline is by the above and below that lays respectively at rotary table (1) and be symmetrically arranged and go up clamping hydraulic pipeline (4) and following clamping hydraulic pipeline (6) is formed, the inlet place of last clamping hydraulic pipeline (4) and following clamping hydraulic pipeline (6) is provided with fluid pressure allocation units (5), a liquid storage cylinder is set in the fluid pressure allocation units (5), liquid storage cylinder is provided with the liquid outlet of two symmetrical distributions, the inlet of last clamping hydraulic pipeline (4) and following clamping hydraulic pipeline (6) is connected with two liquid outlets of this liquid storage cylinder respectively, between the liquid outlet of last clamping hydraulic pipeline (4) and following clamping hydraulic pipeline (6) and the rotary table (1) clamping body is set respectively, clamping body comprises elasticity clamping body and hydraulic clamp body (3), hydraulic clamp body (3) is provided with two hydraulic cavities (2), two hydraulic cavities (2) lay respectively at the above and below of rotary table (1) and are and are symmetrical arranged, one end of hydraulic cavities (2) is connected with the clamping hydraulic cylinder, the corresponding other end is connected with the elasticity clamping body, and the elasticity clamping body directly contacts with rotary table (1).
2. numerical control rotating platform hydraulic clamp according to claim 1, it is characterized in that: described elasticity clamping body comprises flexible pressure plate (7) and contact friction plate (8), flexible pressure plate (7) directly contacts with rotary table (1), contact friction plate (8) is positioned at the outside of flexible pressure plate (7) and fixedlys connected with flexible pressure plate (7), fixedlys connected with hydraulic cavities (2) in the outside of contact friction plate (8).
3. numerical control rotating platform hydraulic clamp according to claim 2 is characterized in that: described flexible pressure plate (7) is integral structure with contact friction plate (8).
4. numerical control rotating platform hydraulic clamp according to claim 2 is characterized in that: described flexible pressure plate (7) is bolted to connection with contact friction plate (8).
5. according to claim 2,3 or 4 described numerical control rotating platform hydraulic clamps, it is characterized in that: the peripheral arranged outside pressing plate (10) of described flexible pressure plate (7), fixedly connected with pressing plate (10) by trip bolt (9) in the inside edge of contact friction plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010567550.3A CN102000987B (en) | 2010-12-01 | 2010-12-01 | Hydraulic clamping device for NC rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010567550.3A CN102000987B (en) | 2010-12-01 | 2010-12-01 | Hydraulic clamping device for NC rotary table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102000987A true CN102000987A (en) | 2011-04-06 |
| CN102000987B CN102000987B (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010567550.3A Expired - Fee Related CN102000987B (en) | 2010-12-01 | 2010-12-01 | Hydraulic clamping device for NC rotary table |
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| Country | Link |
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| CN (1) | CN102000987B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862090A (en) * | 2012-10-08 | 2013-01-09 | 山东义信重机制造有限公司 | Adjustment device for rotary working table of boring and milling machine |
| CN104889751A (en) * | 2015-07-03 | 2015-09-09 | 三一重型机器有限公司 | Rotary worktable clamping device and rotary worktable |
| CN109353811A (en) * | 2018-10-11 | 2019-02-19 | 遵义师范学院 | A kind of universal more brick clamping devices |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4413342A1 (en) * | 1994-04-18 | 1995-10-19 | Mohammad Mohsen Prof Dr Saadat | Linear unit actuated pressure medium |
| US5918510A (en) * | 1996-07-15 | 1999-07-06 | Toyoda Koki Kabushiki Kaisha | Rotary indexing apparatus |
| CN1608795A (en) * | 2003-10-17 | 2005-04-27 | 株式会社三共制作所 | Clamping device and rotary table apparatus |
| CN101012857A (en) * | 2007-01-24 | 2007-08-08 | 大连光洋科技工程有限公司 | Hydraulic expanding sleeve locking mechanism |
| JP4093652B2 (en) * | 1998-10-01 | 2008-06-04 | 株式会社ハーモニック・ドライブ・システムズ | Clamp mechanism |
| CN100457387C (en) * | 2007-02-06 | 2009-02-04 | 南通纵横国际股份有限公司 | Rotating floor braking device for rotor of four-axle linkage machine tool |
| CN201405203Y (en) * | 2009-04-23 | 2010-02-17 | 汉川机床集团有限公司 | Linear rolling guide rail type square main shaft clamping device |
| CN201906997U (en) * | 2010-12-01 | 2011-07-27 | 青岛越丰科技发展有限公司 | Hydraulic clamping device for NC rotary table |
-
2010
- 2010-12-01 CN CN201010567550.3A patent/CN102000987B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4413342A1 (en) * | 1994-04-18 | 1995-10-19 | Mohammad Mohsen Prof Dr Saadat | Linear unit actuated pressure medium |
| US5918510A (en) * | 1996-07-15 | 1999-07-06 | Toyoda Koki Kabushiki Kaisha | Rotary indexing apparatus |
| KR100468190B1 (en) * | 1996-07-15 | 2005-05-19 | 도요다고키 가부시키가이샤 | Rotary index device |
| JP4093652B2 (en) * | 1998-10-01 | 2008-06-04 | 株式会社ハーモニック・ドライブ・システムズ | Clamp mechanism |
| CN1608795A (en) * | 2003-10-17 | 2005-04-27 | 株式会社三共制作所 | Clamping device and rotary table apparatus |
| CN101012857A (en) * | 2007-01-24 | 2007-08-08 | 大连光洋科技工程有限公司 | Hydraulic expanding sleeve locking mechanism |
| CN100457387C (en) * | 2007-02-06 | 2009-02-04 | 南通纵横国际股份有限公司 | Rotating floor braking device for rotor of four-axle linkage machine tool |
| CN201405203Y (en) * | 2009-04-23 | 2010-02-17 | 汉川机床集团有限公司 | Linear rolling guide rail type square main shaft clamping device |
| CN201906997U (en) * | 2010-12-01 | 2011-07-27 | 青岛越丰科技发展有限公司 | Hydraulic clamping device for NC rotary table |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862090A (en) * | 2012-10-08 | 2013-01-09 | 山东义信重机制造有限公司 | Adjustment device for rotary working table of boring and milling machine |
| CN104889751A (en) * | 2015-07-03 | 2015-09-09 | 三一重型机器有限公司 | Rotary worktable clamping device and rotary worktable |
| CN109353811A (en) * | 2018-10-11 | 2019-02-19 | 遵义师范学院 | A kind of universal more brick clamping devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102000987B (en) | 2015-10-14 |
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Owner name: TAIDA HEAVY INDUSTRY MACHINERY (QINGDAO) CO., LTD. Free format text: FORMER OWNER: QINGDAO YUEFENG SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150703 |
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Effective date of registration: 20150703 Address after: 266000 Shandong Province, Qingdao city Chengyang District jade Ridge Industrial Park Applicant after: TEDA HEAVY MACHINERY CO.,LTD. QINGDAO Address before: 266000 Shandong Province, Qingdao city Chengyang District jade Ridge Industrial Park Applicant before: Qingdao Yuefeng Technology Development Co.,Ltd. |
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Granted publication date: 20151014 Termination date: 20211201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |