CN104209767A - Locating clamping mechanism - Google Patents
Locating clamping mechanism Download PDFInfo
- Publication number
- CN104209767A CN104209767A CN201310209056.3A CN201310209056A CN104209767A CN 104209767 A CN104209767 A CN 104209767A CN 201310209056 A CN201310209056 A CN 201310209056A CN 104209767 A CN104209767 A CN 104209767A
- Authority
- CN
- China
- Prior art keywords
- piston
- fastening teeth
- workbench
- clamping
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000000515 tooth Anatomy 0.000 claims description 50
- 239000003921 oil Substances 0.000 claims description 29
- 239000012530 fluid Substances 0.000 claims description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The invention discloses a locating clamping mechanism which comprises an oil cylinder and a clamping piece. A plurality of elastic clamping teeth are distributed on the clamping piece, inclined faces are arranged on the inner side faces of the clamping teeth, the outer side faces of the clamping teeth are in contact with a workbench, a piston of the oil cylinder is arranged on the inner side of the clamping piece, the piston is matched with the inclined faces of the clamping teeth, and the piston is driven by the oil cylinder to descend and ascend to drive the clamping teeth to clamp and release the workbench. The clamping mechanism can carry out accurate locating clamping on the workbench.
Description
Technical field
The present invention relates to precision machine tool and instrument field, particularly a kind of high-precision positioning and clamping mechanism to workbench.
Background technology
Along with machinery industry is to future developments such as high speed, heavy duty, high accuracy, high-performance, the descending operation of workbench all can be used in many lathes, in lifting process, clamping position must be carried out to guarantee its precision to workbench, existing lathe has two kinds of method of clamping usually, the first is the mode adopting cammed surface, as shown in Figure 1, when adopting this method of clamping, workbench only relies on the inclined-plane support force of holder to carry out clamping position, workbench can occur to be shifted up and down, cannot meet the positioning accuracy request of workbench; Another kind of mode adopts the mode of oil pressure to clamp, as shown in Figure 2, namely oil pressure is utilized directly to clamp workbench, this kind of mode is when clamping force is enough large, the workbench that can not exist in first kind of way is shifted up and down, the problem that precision reduces, but what often encounter is the situation of insufficient clamping force, also cannot guarantee the positioning precision of workbench.
Summary of the invention
The object of the invention is to the problem that cannot ensure the positional precision in worktable lifting process for the existing detent mechanism described in background technology, a kind of positioning and clamping mechanism that can solve foregoing problems is provided.
The technical scheme realizing object of the present invention is as follows:
A kind of positioning and clamping mechanism, it comprises oil cylinder and clamping element, described clamping element is distributed with some flexible fastening teeths, the medial surface of fastening teeth is inclined-plane, the lateral surface of fastening teeth contacts with clamped part, the piston of oil cylinder is arranged at inside clamping element, and the outside wall surface of piston is agreed with mutually with the inclined-plane of fastening teeth, controls fastening teeth to unclamp workbench and to clamp by the lifting of hydraulic oil cylinder driving piston.
In such scheme, when workbench and fastening teeth contact surface are cylindrical, described clamping element is ring-type, and fastening teeth is distributed in clamping element top circumferentially.
Inclined-plane inside described fastening teeth is downward-sloping inclined-plane.By such setting, when piston moves down, extrude fastening teeth, fastening teeth is deformed, the stress that distortion produces produces extruding to workbench, and then by worktable clamping, when piston moves up, is unclamped by workbench.The inclined-plane of fastening teeth can be set to acclivitous inclined-plane equally, when arranging like this, when piston moves up, by worktable clamping, when piston moves down, is unclamped by workbench.
For the ease of the piston of oil cylinder and coordinating of fastening teeth, by the lifting of piston, fastening teeth is deformed, and then by worktable clamping, described oil cylinder is provided with the first hydraulic fluid port and the second hydraulic fluid port, described piston comprises first piston and the second piston, and first piston is fixedly connected with the second piston, and the second piston matches with described fastening teeth, first hydraulic fluid port is communicated with the oil pocket below first piston, and the second hydraulic fluid port is communicated with the oil pocket above first piston.When passing into hydraulic oil from the second hydraulic fluid port, under the effect of hydraulic oil, first piston drives the second piston to move down, and when passing into hydraulic oil from the first hydraulic fluid port, first piston drives the second piston to move up.
Positioning and clamping mechanism of the present invention, its operation principle is as follows: the center of workbench arranges cylindrical hole, the clamping element of positioning and clamping mechanism is arranged in cylindrical hole, clamping element top arranges fastening teeth, the lateral surface of fastening teeth and the cylindrical hole inwall at workbench center fit together, the internal face of fastening teeth is inclined-plane, the lateral surface of the piston of this inclined-plane and oil cylinder fits, for the scheme that the contact surface of fastening teeth and piston is downward inclined-plane, when needs clamp workbench, pressure oil is through oil filter, oil pump, oil cylinder is entered after solenoid directional control valve, driven plunger declines, because fastening teeth medial surface is downward-sloping inclined-plane, the medial surface of fastening teeth coordinates with piston, so fastening teeth can deform under the extruding of piston, the power that distortion produces can be pressed on the internal face of the cylindrical hole of workbench, so fastening teeth will by the internal face of workbench by worktable clamping.When needs unclamp workbench, hydraulic oil cylinder driving piston rises, and the eliminating deformation of fastening teeth thereupon, fastening teeth is eliminated the pressure of workbench inwall, and at this moment workbench can freely be elevated and rotate.Contact surface for fastening teeth and piston is the scheme on inclined-plane upwards, similar with above-mentioned principle, by worktable clamping when difference is that piston rises, is unclamped by workbench during piston decline.
The advantage of positioning and clamping mechanism of the present invention is: carry out clamping position with coordinating of flexible fastening teeth to workbench by the piston of oil cylinder, solve the defect of the existing workbench clamping device described in background technology, improve the clamping position precision of workbench, make workbench when locating, both the problem of the decline of the workbench that the first method of clamping causes in background technology can not have been there is, simultaneously, clamped workbench by the flexible fastening teeth of the piston actuated of oil cylinder, chucking power can meet the positioning requirements of workbench.
Accompanying drawing explanation
Fig. 1 be in background technology the first to the schematic diagram of workbench clamping position;
Fig. 2 be in background technology the second to the schematic diagram of workbench clamping position;
Fig. 3 is the schematic diagram of workbench clamping positioning mechainsm of the present invention;
In figure, 1 is oil cylinder, and 2 is clamping element, and 3 is fastening teeth, and 4 is inclined-plane, and 5 is workbench, and 6 is the first hydraulic fluid port, and 7 is the second hydraulic fluid port, and 8 is first piston, and 9 is the second piston, and 10 is oil pocket.
Detailed description of the invention
Detailed illustrating is carried out below in conjunction with accompanying drawing 1 to accompanying drawing 3 pairs of the specific embodiment of the present invention:
Embodiment 1
A kind of positioning and clamping mechanism, it comprises oil cylinder 1 and clamping element 2, described clamping element 2 is distributed with some flexible fastening teeths 3, the medial surface of fastening teeth 3 is inclined-plane 4, the lateral surface of fastening teeth 3 contacts with clamped part 2, the piston of oil cylinder 1 is arranged at inside clamping element 2, and the outside wall surface of piston is agreed with mutually with the inclined-plane 4 of fastening teeth 3, controls fastening teeth 3 pairs of workbench 5 unclamp and clamp by the lifting of oil cylinder 1 driven plunger.
Embodiment 2
In foregoing scheme, the inclined-plane 4 inside described fastening teeth 3 is downward-sloping inclined-plane 4.By such setting, when piston moves down, extrude fastening teeth 3, fastening teeth 3 is deformed, the stress that distortion produces produces extruding to workbench 5, and then is clamped by workbench 5, when piston moves up, is unclamped by workbench 5.The inclined-plane 4 of fastening teeth 3 can be set to acclivitous inclined-plane 4 equally, when arranging like this, when piston moves up, is clamped by workbench 5, when piston moves down, is unclamped by workbench 5.
Embodiment 3
Especially, in such scheme, when workbench 5 and fastening teeth 3 contact surface are cylindrical, described clamping element 2 is ring-type, and fastening teeth 3 is distributed in clamping element 2 top circumferentially.
Embodiment 4
For the ease of the piston of oil cylinder 1 and coordinating of fastening teeth 3, by the lifting of piston, fastening teeth 3 is deformed, and then workbench 5 is clamped, described oil cylinder 1 is provided with the first hydraulic fluid port 6 and the second hydraulic fluid port 7, described piston comprises first piston 8 and the second piston 9, and first piston 8 is fixedly connected with the second piston 9, and the second piston 9 matches with described fastening teeth 3, first hydraulic fluid port 6 is communicated with the oil pocket 10 below first piston 8, and the second hydraulic fluid port 7 is communicated with the oil pocket 10 above first piston 8.
Claims (4)
1. a positioning and clamping mechanism, it is characterized in that: it comprises oil cylinder and clamping element, described clamping element is distributed with some flexible fastening teeths, the medial surface of fastening teeth is inclined-plane, the lateral surface of fastening teeth contacts with clamped part, the piston of oil cylinder is arranged at inside clamping element, and the outside wall surface of piston is agreed with mutually with the inclined-plane of fastening teeth, controls fastening teeth to unclamp workbench and to clamp by the lifting of hydraulic oil cylinder driving piston.
2. a kind of positioning and clamping mechanism according to claim 1, is characterized in that: described clamping element is ring-type, and fastening teeth is distributed in clamping element top circumferentially.
3. a kind of positioning and clamping mechanism according to claim 1 and 2, is characterized in that: the inclined-plane inside described fastening teeth is downward-sloping inclined-plane, and the outer wall of piston corresponding is with it acclivitous inclined-plane.
4. a kind of positioning and clamping mechanism according to claim 1 and 2, it is characterized in that: described oil cylinder is provided with the first hydraulic fluid port and the second hydraulic fluid port, described piston comprises first piston and the second piston, first piston is fixedly connected with the second piston, second piston matches with described fastening teeth, first hydraulic fluid port is communicated with the oil pocket below first piston, and the second hydraulic fluid port is communicated with the oil pocket above first piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310209056.3A CN104209767A (en) | 2013-05-30 | 2013-05-30 | Locating clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310209056.3A CN104209767A (en) | 2013-05-30 | 2013-05-30 | Locating clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104209767A true CN104209767A (en) | 2014-12-17 |
Family
ID=52091889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310209056.3A Pending CN104209767A (en) | 2013-05-30 | 2013-05-30 | Locating clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104209767A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234450A (en) * | 2016-03-29 | 2017-10-10 | 斗山机床株式会社 | Rotary table |
| CN112882372A (en) * | 2019-11-29 | 2021-06-01 | 劳力士有限公司 | Support system for a timepiece component |
| CN113914154A (en) * | 2021-11-10 | 2022-01-11 | 广东粤海珠三角供水有限公司 | Track quick installation mechanism adopting hydraulic method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1552231A1 (en) * | 1966-03-09 | 1970-01-08 | Cross Co | Mechanical transfer device |
| US3968869A (en) * | 1975-07-14 | 1976-07-13 | F. Jos. Lamb Company | Pallet locating and clamping arrangement |
| CN102000986A (en) * | 2010-11-05 | 2011-04-06 | 威海华东数控股份有限公司 | Clamping device of large-scale vertical lathe rotating table |
| CN102371487A (en) * | 2011-09-15 | 2012-03-14 | 无锡桥联数控机床有限公司 | Rotary workbench gear ring hydraulic clamping device |
| CN202174415U (en) * | 2011-06-24 | 2012-03-28 | 芜湖红旗重型机床有限公司 | Workbench clamping device for turning and milling composite machine tool |
| CN203317050U (en) * | 2013-05-30 | 2013-12-04 | 崴立机电（苏州）有限公司 | Positioning clamping mechanism |
-
2013
- 2013-05-30 CN CN201310209056.3A patent/CN104209767A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1552231A1 (en) * | 1966-03-09 | 1970-01-08 | Cross Co | Mechanical transfer device |
| US3968869A (en) * | 1975-07-14 | 1976-07-13 | F. Jos. Lamb Company | Pallet locating and clamping arrangement |
| CN102000986A (en) * | 2010-11-05 | 2011-04-06 | 威海华东数控股份有限公司 | Clamping device of large-scale vertical lathe rotating table |
| CN202174415U (en) * | 2011-06-24 | 2012-03-28 | 芜湖红旗重型机床有限公司 | Workbench clamping device for turning and milling composite machine tool |
| CN102371487A (en) * | 2011-09-15 | 2012-03-14 | 无锡桥联数控机床有限公司 | Rotary workbench gear ring hydraulic clamping device |
| CN203317050U (en) * | 2013-05-30 | 2013-12-04 | 崴立机电（苏州）有限公司 | Positioning clamping mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234450A (en) * | 2016-03-29 | 2017-10-10 | 斗山机床株式会社 | Rotary table |
| CN107234450B (en) * | 2016-03-29 | 2019-11-01 | 斗山机床株式会社 | Rotary table |
| CN112882372A (en) * | 2019-11-29 | 2021-06-01 | 劳力士有限公司 | Support system for a timepiece component |
| CN112882372B (en) * | 2019-11-29 | 2025-10-17 | 劳力士有限公司 | Support system for timepiece components |
| CN113914154A (en) * | 2021-11-10 | 2022-01-11 | 广东粤海珠三角供水有限公司 | Track quick installation mechanism adopting hydraulic method |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141217 |