CN104551072A - Dual-cone inclined wedge self-centering clamp - Google Patents
Dual-cone inclined wedge self-centering clamp Download PDFInfo
- Publication number
- CN104551072A CN104551072A CN201410760509.6A CN201410760509A CN104551072A CN 104551072 A CN104551072 A CN 104551072A CN 201410760509 A CN201410760509 A CN 201410760509A CN 104551072 A CN104551072 A CN 104551072A
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- Prior art keywords
- wedge
- pull bar
- mandrel
- core
- inclined wedge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/42—Expansion mandrels characterised by features relating primarily to remote control of the gripping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention provides a dual-cone inclined wedge self-centering clamp. The dual-cone inclined wedge self-centering clamp can be positioned in the radial direction of an inner hole of an air cylinder sleeve and can clamp stably; a workpiece is assembled and disassembled conveniently; the air cylinder sleeve is stressed uniformly in various directions; the machining precision is high. The dual-cone inclined wedge self-centering clamp comprises a mandrel which is connected to a machine tool through a flange, and is characterized in that a pull rod is arranged in the inner cavity of the mandrel; the pull rod on one side of the flange is connected with a piston of a hydraulic cylinder; a fixed conical surface is formed on the mandrel in the outer circumferential direction of the mandrel by cutting; a movable cone core is arranged on the pull rod in a sleeving manner; a retaining sleeve is arranged on the pull rod between the fixed conical surface and the movable cone core in a sleeving manner; a front inclined wedge which is matched with the fixed conical surface is arranged at the front end of the retaining sleeve; a rear inclined wedge which is matched with the movable conical surface is arranged at the rear end of the retaining sleeve; a connecting disk is arranged on the pull rod outside the movable cone core in a sleeving manner; the connecting disk is fixed to the pull rod through a plurality of nuts.
Description
Technical field
The present invention relates to auto parts and components clamp for machining, be specifically related to a kind of cylinder jacket clamps.
Background technology
Gas engine part major part cylinder jacket industry tradition roughing technique is rough bore, then to rough turn cylindrical.Rough bore location makes cylindrical with cylinder liner blank two ends and plane locating clip is tight.Cylinder liner blank is centrifugal casting, and the depth of parallelism of both ends of the surface and cylindrical are not too regular.Such cylinder jacket inside and outside circle allowance very large [Excircle machining amount 7 millimeters (diameter value), endoporus processing capacity 9-10 millimeter (diameter value)].
The advantage of centrifugal casting is by quantitative pouring, and endoporus obtains good surface quality, and hole size tolerance can be controlled in IT14 level (about 1 millimeter), and internal-external circle concentricity can be controlled in IT11 level (0.22 millimeter).The roughing skill of such cylinder jacket can the inclined both ends of the surface of the rough turn cylindrical of Internal hole positioning, then locate rough turn cylindrical with cylindrical and both ends of the surface, lack the clamps adapting to above-mentioned technique in prior art.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of bipyramid wedge self-centering fixture, can with cylinder cover inner hole radial location, and clamping is firm, and workpiece is easy for going up and down, and cylinder jacket is respectively to uniform force, and machining accuracy is high.
For solving the problems of the technologies described above, bipyramid wedge self-centering fixture of the present invention, comprises through the mandrel of Flange joint on lathe, it is characterized in that: described mandrel inner chamber is provided with pull bar, and described pull bar is connected with hydraulic cylinder piston in flange side; Described mandrel is cut with fixed axoid along its excircle, described pull bar is set with movable cone core, described fixed axoid and movable pull bar of boring between core are set with maintainance set, wedge before described maintainance set front end is provided with and mates with fixed axoid, described maintainance set rear end is provided with the rear wedge of to bore core with activity and mating; Pull bar outside described activity cone core is set with terminal pad, and described terminal pad is fixed on pull bar through multiple nut.
After have employed technique scheme, by hydraulic cylinder piston tensile ties, through terminal pad pushes on movable cone core and maintainance set, front wedge, rear wedge, along conical surface radial motion, from inner side tensioner workpiece, realize stabilizing grip, when unclamping hydraulic cylinder piston, radial pressure disappears, and workpiece can take off, easy for going up and down; Because multiple front wedge and multiple rear wedge are uniformly distributed along the circumference in workpiece lumen, thus cylinder jacket is respectively to uniform force, does not produce deformation, and machining accuracy is high.
After clamping completes, workpiece and front wedge, rear wedge interlock, and can not naturally unclamp, and in order to head it off, the present invention has been disposed radially multiple pin further in the middle part of described maintainance set, and described pin is bored core through lock-screw with activity and is fixedly connected with.When hydraulic cylinder piston moves to right, movable cone core drives maintainance set to move to right through multiple pin, and front wedge, retread radial wedge distress resolves, automatically unclamps workpiece.
Described front wedge outer surface is provided with annular groove, in described annular groove, is provided with front wedge auxiliary positioning spring; Described rear wedge outer surface is provided with annular groove, in described annular groove, is provided with rear wedge auxiliary positioning spring.Further enhancing front wedge, locating effect between rear wedge and workpiece.
Be provided with sealing ring with on the axle of maintainance set binding site, the stroke of maintainance set in axis can be limited.
Accompanying drawing explanation
Fig. 1 is the structural representation of bipyramid wedge self-centering fixture of the present invention;
Fig. 2 is the sectional view of Fig. 1 along A-A line.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, bipyramid wedge self-centering fixture of the present invention, comprises the mandrel 2 be connected to through flange 1 on lathe, it is characterized in that: described mandrel 2 inner chamber is provided with pull bar 3, and described pull bar 3 is connected with hydraulic cylinder piston 4 in flange 1 side; Described mandrel 2 is cut with fixed axoid 20 along its excircle, described pull bar 3 is set with movable cone core 5, described fixed axoid 20 and movable pull bar 3 of boring between core 5 are set with maintainance set 6, wedge 7 before described maintainance set 6 front end is provided with and mates with fixed axoid 20, described maintainance set 6 rear end is provided with the rear wedge 8 of to bore core 5 with activity and mating; Pull bar 3 outside described activity cone core 5 is set with terminal pad 9, and described terminal pad 9 is fixed on pull bar 3 through multiple nut 90.
As shown in Figure 2, in axis, front wedge 7 can slide along maintainance set 6, in order to be assembled on maintainance set 6 by front wedge 7, multiple assembling mode can be taked, as one of implementation, the excircle of described maintainance set 6 is provided with some fins 60, the inner chamber of described front wedge 7 mates accordingly and arranges groove, and groove and fin 60 matched in clearance, realize relative sliding.
Be disposed radially multiple pin 61 in the middle part of described maintainance set 6, described pin 61 is bored core 5 through lock-screw 62 with activity and is fixedly connected with.
Described front wedge 7 outer surface is provided with annular groove, in described annular groove, is provided with front wedge auxiliary positioning spring 70; Described rear wedge 8 outer surface is provided with annular groove, in described annular groove, is provided with rear wedge auxiliary positioning spring 80.
Sealing ring 21 is provided with on the axle 2 of maintainance set 6 binding site.
Clamping process of the present invention: cylinder jacket 10 is sleeved on outside front wedge 7, rear wedge 8, hydraulic cylinder piston 4 moves to left, terminal pad 9, movable cone core 5, maintainance set 6 is strained successively through pull bar 3, front wedge 7 moves radially along fixed axoid 20, rear wedge 8 along the conical surface of activity cone core 5, locking cylinder overlaps 10 inner chambers, then can carry out processing operation.
Blanking process of the present invention: hydraulic cylinder piston 4 moves to right, axial compressive force disappears, and movable cone core 5 moves to right, and distribution 61 drives maintainance set 6 to move to right, and front wedge 7, rear wedge 8 radial pressure disappear, and cylinder jacket 10 can be taken off.
Claims (4)
1. a bipyramid wedge self-centering fixture, comprise the mandrel (2) be connected to through flange (1) on lathe, it is characterized in that: described mandrel (2) inner chamber is provided with pull bar (3), described pull bar (3) is connected with hydraulic cylinder piston (4) in flange (1) side; Described mandrel (2) is cut with fixed axoid (20) along its excircle, described pull bar (3) is set with movable cone core (5), described fixed axoid (20) and movable pull bar (3) of boring between core (5) are set with maintainance set (6), described maintainance set (6) front end is provided with the front wedge (7) mated with fixed axoid (20), and described maintainance set (6) rear end is provided with the rear wedge (8) of to bore core (5) with activity and mating; The pull bar (3) in described activity cone core (5) outside is set with terminal pad (9), and described terminal pad (9) is fixed on pull bar (3) through multiple nut (90).
2. bipyramid wedge self-centering fixture as claimed in claim 1, is characterized in that: described maintainance set (6) middle part has been disposed radially multiple pin (61), and described pin (61) is bored core (5) through lock-screw (62) with activity and is fixedly connected with.
3. bipyramid wedge self-centering fixture as claimed in claim 1 or 2, is characterized in that: described front wedge (7) outer surface is provided with annular groove, is provided with front wedge auxiliary positioning spring (70) in described annular groove; Described rear wedge (8) outer surface is provided with annular groove, in described annular groove, is provided with rear wedge auxiliary positioning spring (80).
4. bipyramid wedge self-centering fixture as claimed in claim 1 or 2, is characterized in that: be provided with sealing ring (21) with on the axle (2) of maintainance set (6) binding site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410760509.6A CN104551072B (en) | 2014-12-12 | 2014-12-12 | Bipyramid wedge self-centering fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410760509.6A CN104551072B (en) | 2014-12-12 | 2014-12-12 | Bipyramid wedge self-centering fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104551072A true CN104551072A (en) | 2015-04-29 |
| CN104551072B CN104551072B (en) | 2017-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410760509.6A Active CN104551072B (en) | 2014-12-12 | 2014-12-12 | Bipyramid wedge self-centering fixture |
Country Status (1)
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| CN (1) | CN104551072B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903539A (en) * | 2017-04-12 | 2017-06-30 | 沈机集团昆明机床股份有限公司 | For the air plug gauge of engine cylinder-body crankshaft hole positioning |
| CN108098416A (en) * | 2016-11-25 | 2018-06-01 | 湖北江山液压科技有限公司 | A kind of hydromechanical mandrel Vehicular device |
| CN109396918A (en) * | 2018-11-15 | 2019-03-01 | 郑州予仁工业设计有限公司 | A kind of inclined wedge traveller centering machine |
| CN110027983A (en) * | 2019-04-23 | 2019-07-19 | 杭州富阳钰宝机床厂 | A kind of Precast T-Beam template L-type suspender |
| CN113547143A (en) * | 2020-04-26 | 2021-10-26 | 航天科工惯性技术有限公司 | Thin-wall structural part clamping device |
| CN114770025A (en) * | 2022-06-21 | 2022-07-22 | 四川航天长征装备制造有限公司 | Double-angle wedge sliding block piston ring |
| CN115383160A (en) * | 2022-10-27 | 2022-11-25 | 宁波众鑫压铸模具有限公司 | Bipyramid internal expanding clamp of automobile motor shell |
| CN116833684A (en) * | 2023-07-13 | 2023-10-03 | 四川川润液压润滑设备有限公司 | Preparation process and tool of precise ram |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201957U (en) * | 1987-03-23 | 1988-08-31 | 长春第一汽车制造厂 | Clamp for machining outside circularity of cylinder sleeve of motor |
| US20020063399A1 (en) * | 2000-11-29 | 2002-05-30 | Rohm Gmbh | Collet chuck |
| CN202336601U (en) * | 2011-10-24 | 2012-07-18 | 河南森茂机械有限公司 | Pneumatic fixture for processing cylinder sleeve |
| CN203061915U (en) * | 2012-12-12 | 2013-07-17 | 重庆巨康建材有限公司 | Wedge mechanism of hydraulic type expanding mandrel |
| CN203418134U (en) * | 2013-08-21 | 2014-02-05 | 扬州五亭桥缸套有限公司 | High-precision cylinder sleeve outer circle finish-turning fixture |
| CN203944863U (en) * | 2014-07-17 | 2014-11-19 | 瑞安市作权冲压件有限公司 | A kind of clamping device |
| CN204449379U (en) * | 2014-12-12 | 2015-07-08 | 安徽白兔湖动力股份有限公司 | Bipyramid wedge self-centering fixture |
-
2014
- 2014-12-12 CN CN201410760509.6A patent/CN104551072B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201957U (en) * | 1987-03-23 | 1988-08-31 | 长春第一汽车制造厂 | Clamp for machining outside circularity of cylinder sleeve of motor |
| US20020063399A1 (en) * | 2000-11-29 | 2002-05-30 | Rohm Gmbh | Collet chuck |
| CN202336601U (en) * | 2011-10-24 | 2012-07-18 | 河南森茂机械有限公司 | Pneumatic fixture for processing cylinder sleeve |
| CN203061915U (en) * | 2012-12-12 | 2013-07-17 | 重庆巨康建材有限公司 | Wedge mechanism of hydraulic type expanding mandrel |
| CN203418134U (en) * | 2013-08-21 | 2014-02-05 | 扬州五亭桥缸套有限公司 | High-precision cylinder sleeve outer circle finish-turning fixture |
| CN203944863U (en) * | 2014-07-17 | 2014-11-19 | 瑞安市作权冲压件有限公司 | A kind of clamping device |
| CN204449379U (en) * | 2014-12-12 | 2015-07-08 | 安徽白兔湖动力股份有限公司 | Bipyramid wedge self-centering fixture |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098416A (en) * | 2016-11-25 | 2018-06-01 | 湖北江山液压科技有限公司 | A kind of hydromechanical mandrel Vehicular device |
| CN108098416B (en) * | 2016-11-25 | 2024-04-12 | 中国兵器工业集团江山重工研究院有限公司 | Hydraulic mandrel vehicle device |
| CN106903539A (en) * | 2017-04-12 | 2017-06-30 | 沈机集团昆明机床股份有限公司 | For the air plug gauge of engine cylinder-body crankshaft hole positioning |
| CN109396918A (en) * | 2018-11-15 | 2019-03-01 | 郑州予仁工业设计有限公司 | A kind of inclined wedge traveller centering machine |
| CN110027983A (en) * | 2019-04-23 | 2019-07-19 | 杭州富阳钰宝机床厂 | A kind of Precast T-Beam template L-type suspender |
| CN113547143A (en) * | 2020-04-26 | 2021-10-26 | 航天科工惯性技术有限公司 | Thin-wall structural part clamping device |
| CN113547143B (en) * | 2020-04-26 | 2024-05-10 | 航天科工惯性技术有限公司 | Thin-wall structural member clamping device |
| CN114770025A (en) * | 2022-06-21 | 2022-07-22 | 四川航天长征装备制造有限公司 | Double-angle wedge sliding block piston ring |
| CN115383160A (en) * | 2022-10-27 | 2022-11-25 | 宁波众鑫压铸模具有限公司 | Bipyramid internal expanding clamp of automobile motor shell |
| CN116833684A (en) * | 2023-07-13 | 2023-10-03 | 四川川润液压润滑设备有限公司 | Preparation process and tool of precise ram |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104551072B (en) | 2017-06-30 |
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