CN105562747A - Hydraulic clamping mechanism - Google Patents
Hydraulic clamping mechanism Download PDFInfo
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- CN105562747A CN105562747A CN201410537315.XA CN201410537315A CN105562747A CN 105562747 A CN105562747 A CN 105562747A CN 201410537315 A CN201410537315 A CN 201410537315A CN 105562747 A CN105562747 A CN 105562747A
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- hole
- sealing ring
- clamping mechanism
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- hydraulic clamping
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Abstract
The invention relates to a hydraulic clamping mechanism, which comprises a base body, a piston, an elastic sleeve, sealing rings, a positioning sleeve and pressure transferring media. The hydraulic clamping mechanism is characterized in that a step-shaped middle hole is formed in the middle part of the base body; the piston is arranged at one end of the middle hole of the base body, and can move in the axial direction in the middle hole of the base body; the other end of the middle hole of the base body is sealed and plugged by a second screw; a threaded groove, an elastic sleeve and a fixing hole are arranged in the outer part of the base body; the threaded groove and the elastic sleeve are tightly matched; the starting end of the threaded groove communicates with the base body hole; the ending end of the threaded groove communicates with an oil opening; the oil opening is sealed and plugged by a first screw; the threaded groove and the middle hole of the whole base body are fully filled with the pressure transferring media; a sealed oil path is formed; and the positioning sleeve and a workpiece are arranged on the elastic sleeve. The hydraulic clamping mechanism has the advantages that the centering precision is high; the workpiece mounting and dismounting are fast and convenient; the influence on the deformation quantity of an inner hole of the workpiece is small; the production auxiliary time is short; the production efficiency is improved; the production cost is reduced; the product quality is guaranteed; and the hydraulic clamping mechanism is particularly suitable for processing sleeve type workpieces.
Description
Technical field
The invention belongs to a kind of mechanical processing technique equipment, particularly a kind of a kind of Hydraulic Clamping Mechanism used on hydraulic lathe or Digit Control Machine Tool.
Background technology
At present, the machining of sleeve part generally adopts axle center to locate, it take elastoplast as main pressure Transfer Medium, its elasticity rising is uneven, make sleeve part endoporus contact surface uneven, particularly in production and processing sleeve type thin-wall workpiece process, comparatively large on aspect impacts such as the track geometry sizes of endoporus, cause defective products, reworks or waste product.The present invention relates to a kind of Hydraulic Clamping Mechanism, by hydraulic transfering principle, in an airtight container, put on pressure on inactive liquid will pass to liquid each point with equivalence simultaneously.Adopt the hydraulic circuit that is airtight, can even rising resilient sleeve, improve sleeve part endoporus contact area, reduce produce affect machining accuracy because of frock precision problem, be applicable to the finishing step of sleeve part.
Summary of the invention
The object of the present invention is to provide a kind of Hydraulic Clamping Mechanism, it is large that it has clamping force, can evenly rising and sleeve part endoporus uniform contact, and affect little on sleeve type inwall morpheme, workpiece loading and unloading is convenient and swift, is applicable to the production in enormous quantities of sleeve part.
For achieving the above object, technical program of the present invention lies in have employed a kind of Hydraulic Clamping Mechanism, comprise the compositions such as matrix, piston, resilient sleeve, sealing ring, positioning sleeve and pressure transmission medium, its feature in the base between part be provided with stair-stepping interstitial hole, piston in the base between the one end in hole, piston can in the base between move axially in hole, the other end is by the second screw shutoff; Thread groove, resilient sleeve and fixing hole is provided with at matrix outer, the two ends of thread groove are respectively equipped with the first sealing ring and the second sealing ring, closely cooperate with resilient sleeve, be communicated with matrix hole at the initiating terminal of thread groove, terminate end and be communicated to hydraulic fluid port, hydraulic fluid port, by the first screw shutoff, is all filled with pressure transmission medium at the interstitial hole of whole matrix and thread groove, form a closed oil circuit, resilient sleeve is provided with positioning sleeve and workpiece.
Described pressure transmission medium is hydraulic oil, or other can the synthetic fluid of transmission of pressure.
Described piston is by the fixing matrix interstitial hole of baffle plate, and be provided with the 3rd sealing ring and the 4th sealing ring between matrix interstitial hole and piston, the 3rd sealing ring is O RunddichtringO and the 4th sealing ring is y-type seal ring.
Described thread groove can be semi-circular groove, rectangular channel, square groove, dovetail groove, vee gutter or other groove shape.
Described thread groove and the two ends coordinated between resilient sleeve are respectively equipped with the first sealing ring and the second sealing ring, and the first sealing ring is O RunddichtringO, and the second sealing ring is y-type seal ring.
Described positioning sleeve adjusts according to the processing length of workpiece.
Centering precision of the present invention is high, workpiece loading and unloading is quick and convenient, and very little on the deflection impact of inner hole of workpiece, production is short for non-cutting time, and improve production efficiency, reduce production cost, product quality is protected, and is particularly suitable for the processing of sleeve type workpiece.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
A kind of Hydraulic Clamping Mechanism shown in Fig. 1, comprises matrix 1, and piston 2 is in one end of matrix 1 interstitial hole, and piston 2 can move axially in matrix 1 interstitial hole, and the other end is by the second screw 13 shutoff; Thread groove 8, resilient sleeve 10 and fixing hole 17 is provided with in matrix 1 outside, thread groove 8 and resilient sleeve 10 closely cooperate, be communicated with matrix 1 hole at the initiating terminal of thread groove 8, terminate end and be communicated to hydraulic fluid port, hydraulic fluid port is by the first screw 12 shutoff, all be filled with pressure transmission medium at the interstitial hole of whole matrix 1 and thread groove 8, form a closed oil circuit, resilient sleeve 10 is provided with positioning sleeve 7 and workpiece 9.
Described pressure transmission medium 11 is hydraulic oil, or other can the synthetic fluid of transmission of pressure.
Described piston 2 is by fixing matrix 1 interstitial hole of baffle plate 3, and to be provided with the 3rd sealing ring 15 and the 4th sealing ring the 14, three sealing ring 15 between matrix 1 interstitial hole and piston 2 be O RunddichtringO and the 4th sealing ring 14 is y-type seal ring.
Described thread groove 8 can be semi-circular groove, rectangular channel, square groove, dovetail groove, vee gutter or other groove shape.
Described thread groove 8 and the two ends coordinated between resilient sleeve 10 are respectively equipped with the first sealing ring 5 and the second sealing ring 6, first sealing ring 5 is O RunddichtringO, and the second sealing ring 6 is y-type seal ring.
Described positioning sleeve 7 adjusts according to the processing length of workpiece 9.
The course of work of a kind of Hydraulic Clamping Mechanism of said structure is as follows:
During original state, the fixing hole 16 of the matrix 1 of Hydraulic Clamping Mechanism is arranged on lathe by screw, carries out correction fastening, and positioning sleeve 7 carries out adjusting to suitable dimension according to the processing length of workpiece 9, is inserted in resilient sleeve 10 by workpiece 9.When lathe is in clamped condition, clamping cylinder in lathe promotes piston 2 and moves to three screw 13 directions, make pressure transmission medium 11 to thread groove 8 and resilient sleeve 10 transmission of pressure, because resilient sleeve 10 wall is thinner, make resilient sleeve 10 evenly rising, be in interference fit with the inwall of workpiece 9, stretching workpiece 9, adjust resilient sleeve 10 and the appropriate level of workpiece 9 by the 3rd screw 13, just can process workpiece 9 after having adjusted.
When lathe is in releasing orientation, under the reseting elasticity effect of workpiece 9 and resilient sleeve 10, makes pressure transmission medium 11, piston 2 is resetted, workpiece 9 and resilient sleeve 10 are in matched in clearance, workpiece 9 can be taken off, if need Continuous maching, repeat aforesaid operations replacing workpiece 9 and process.
Claims (5)
1. a Hydraulic Clamping Mechanism, comprise matrix, piston, resilient sleeve, sealing ring, positioning sleeve and pressure transmission medium, it is characterized in that: matrix mid portion is provided with stair-stepping interstitial hole, piston in the base between the one end in hole, piston can in the base between move axially in hole, the other end is by the second screw shutoff; Thread groove, resilient sleeve and fixing hole is provided with at matrix outer, thread groove and resilient sleeve closely cooperate, be communicated with matrix hole at the initiating terminal of thread groove, terminate end and be communicated to hydraulic fluid port, hydraulic fluid port is by the first screw shutoff, all be filled with pressure transmission medium at the interstitial hole of whole matrix and thread groove, form a closed oil circuit, resilient sleeve is provided with positioning sleeve and workpiece.
2. a kind of Hydraulic Clamping Mechanism according to claim 1, is characterized in that: pressure transmission medium is hydraulic oil.
3. a kind of Hydraulic Clamping Mechanism according to claim 1, it is characterized in that: piston is by the fixing matrix interstitial hole of baffle plate, be provided with the 3rd sealing ring and the 4th sealing ring between matrix interstitial hole and piston, the 3rd sealing ring is O RunddichtringO, and the 4th sealing ring is y-type seal ring.
4. a kind of Hydraulic Clamping Mechanism according to claim 3, is characterized in that: thread groove can be semi-circular groove, rectangular channel, square groove, dovetail groove and vee gutter.
5. a kind of Hydraulic Clamping Mechanism according to claim 4, is characterized in that: the two ends coordinated between thread groove with resilient sleeve are respectively equipped with the first sealing ring and the second sealing ring, and the first sealing ring is O RunddichtringO, and the second sealing ring is y-type seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537315.XA CN105562747A (en) | 2014-10-13 | 2014-10-13 | Hydraulic clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537315.XA CN105562747A (en) | 2014-10-13 | 2014-10-13 | Hydraulic clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105562747A true CN105562747A (en) | 2016-05-11 |
Family
ID=55873679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410537315.XA Pending CN105562747A (en) | 2014-10-13 | 2014-10-13 | Hydraulic clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105562747A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286450A (en) * | 2017-12-07 | 2018-07-17 | 江苏中矿立兴能源科技有限公司 | A kind of multi-layer sealed air leg |
| CN109822457A (en) * | 2019-03-18 | 2019-05-31 | 广州德马威工业装备制造有限公司 | A kind of precise hydraulic fixture |
| CN109848488A (en) * | 2019-04-12 | 2019-06-07 | 定州市新华机械制造有限公司 | Hydraulic gear grinding clamp |
| CN110449615A (en) * | 2019-08-09 | 2019-11-15 | 东风格特拉克汽车变速箱有限公司 | A kind of rear pull type self-centering hydraulic pressure fixture of the airtight detection of band |
| CN112643073A (en) * | 2019-10-11 | 2021-04-13 | 肯纳金属公司 | Hydraulic tool mount and sealing piston for such a mount |
| CN113333790A (en) * | 2021-07-07 | 2021-09-03 | 抚州长丰机械有限责任公司 | Machining device and method suitable for ultrathin-wall armature bushing |
| CN113976934A (en) * | 2021-10-11 | 2022-01-28 | 上海韩东机械科技有限公司 | Mechanical slat type inflatable chuck |
| JP7438233B2 (en) | 2019-11-08 | 2024-02-26 | 黒田精工株式会社 | Hydraulic clamp device and method for manufacturing hydraulic clamp device |
-
2014
- 2014-10-13 CN CN201410537315.XA patent/CN105562747A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286450A (en) * | 2017-12-07 | 2018-07-17 | 江苏中矿立兴能源科技有限公司 | A kind of multi-layer sealed air leg |
| CN109822457A (en) * | 2019-03-18 | 2019-05-31 | 广州德马威工业装备制造有限公司 | A kind of precise hydraulic fixture |
| CN109848488A (en) * | 2019-04-12 | 2019-06-07 | 定州市新华机械制造有限公司 | Hydraulic gear grinding clamp |
| CN110449615A (en) * | 2019-08-09 | 2019-11-15 | 东风格特拉克汽车变速箱有限公司 | A kind of rear pull type self-centering hydraulic pressure fixture of the airtight detection of band |
| CN110449615B (en) * | 2019-08-09 | 2020-07-10 | 东风格特拉克汽车变速箱有限公司 | Take airtight detection's back to draw formula from line-up hydraulic fixture |
| CN112643073A (en) * | 2019-10-11 | 2021-04-13 | 肯纳金属公司 | Hydraulic tool mount and sealing piston for such a mount |
| US11732804B2 (en) | 2019-10-11 | 2023-08-22 | Kennametal Inc. | Hydraulic tool mount and sealing piston for such a mount |
| CN112643073B (en) * | 2019-10-11 | 2024-03-08 | 肯纳金属公司 | Hydraulic tool mount and sealing piston for such mount |
| JP7438233B2 (en) | 2019-11-08 | 2024-02-26 | 黒田精工株式会社 | Hydraulic clamp device and method for manufacturing hydraulic clamp device |
| CN113333790A (en) * | 2021-07-07 | 2021-09-03 | 抚州长丰机械有限责任公司 | Machining device and method suitable for ultrathin-wall armature bushing |
| CN113976934A (en) * | 2021-10-11 | 2022-01-28 | 上海韩东机械科技有限公司 | Mechanical slat type inflatable chuck |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160511 |