CN104551072B - Bipyramid wedge self-centering fixture - Google Patents
Bipyramid wedge self-centering fixture Download PDFInfo
- Publication number
- CN104551072B CN104551072B CN201410760509.6A CN201410760509A CN104551072B CN 104551072 B CN104551072 B CN 104551072B CN 201410760509 A CN201410760509 A CN 201410760509A CN 104551072 B CN104551072 B CN 104551072B
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- CN
- China
- Prior art keywords
- pull bar
- wedge
- cone core
- activity cone
- mandrel
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Classifications
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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 kind of bipyramid wedge self-centering fixture, can be consolidated with cylinder cover inner hole radial positioning, clamping, workpiece is easy for going up and down, and cylinder jacket is respectively to uniform force, and machining accuracy is high.It includes the mandrel being connected to through flange on lathe, it is characterised in that：The mandrel inner chamber is provided with pull bar, and the pull bar is connected in flange side with hydraulic cylinder piston；On described mandrel fixed axoid is cut with along its excircle, activity cone core is set with described pull bar, holding set is set with pull bar between the fixed axoid and activity cone core, described to keep set front end to be provided with the preceding wedge matched with fixed axoid, the holding set rear end is provided with the rear wedge matched with activity cone core；Terminal pad is set with pull bar on the outside of the activity cone core, the terminal pad is fixed on pull bar through multiple nuts.
Description
Technical field
The present invention relates to auto parts and components clamp for machining, and in particular to a kind of cylinder packaged clamp.
Background technology
Gas engine part major part cylinder jacket industry tradition roughing technique is rough bore, then to rough turn cylindrical.Slightly
Bore hole positioning is to make cylindrical tight with plane locating clip with cylinder liner blank two ends.Cylinder liner blank is centrifugal casting, both ends of the surface
The depth of parallelism and it is cylindrical be less rule.So cylinder jacket inside and outside circle allowance it is very big [7 millimeters of Excircle machining amount (diameter value),
9-10 millimeters of endoporus processing capacity (diameter value)].
By quantitative pouring, endoporus obtains good surface quality to the advantage of centrifugal casting, and hole size tolerance can control
At IT14 grades（About 1 millimeter）, internal-external circle concentricity can be controlled in IT11 grades (0.22 millimeter).The roughing skill of so cylinder jacket can
With the rough turn cylindrical inclined both ends of the surface of Internal hole positioning, rough turn cylindrical, shortage adaptation in the prior art is then positioned with cylindrical and both ends of the surface
The clamps of above-mentioned technique.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of bipyramid wedge self-centering fixture, can be with cylinder jacket
Hole radial positioning, clamping is consolidated, and workpiece is easy for going up and down, and cylinder jacket is respectively to uniform force, and machining accuracy is high.
In order to solve the above technical problems, bipyramid wedge self-centering fixture of the invention, including be connected on lathe through flange
Mandrel, it is characterised in that：The mandrel inner chamber is provided with pull bar, and the pull bar is connected in flange side with hydraulic cylinder piston；
Fixed axoid is cut with along its excircle on described mandrel, activity cone core, the fixed axoid are set with described pull bar
Set is kept with being set with the pull bar between activity cone core, the holding set front end is provided with before being matched with fixed axoid tiltedly
Wedge, the holding set rear end is provided with the rear wedge matched with activity cone core；It is set with pull bar on the outside of the activity cone core
Terminal pad, the terminal pad is fixed on pull bar through multiple nuts.
After employing above-mentioned technical proposal, by hydraulic cylinder piston tensile ties, through terminal pad pushes on movable cone core and guarantor
Set is held, preceding wedge, rear wedge, from inner side tensioner workpiece, realize stabilizing grip along conical surface radial motion, unclamp hydraulic cylinder piston
When, radial pressure is disappeared, and workpiece can be removed, easy for going up and down；Due to before multiple wedge and multiple after wedge in workpiece lumen
It is uniformly distributed along the circumference, thus cylinder jacket is each to uniform force, and deformation is not produced, machining accuracy is high.
After the completion of clamping, workpiece is interlocked with preceding wedge, rear wedge, will not be unclamped naturally, in order to solve this problem, the present invention
Multiple pins further are disposed radially in the middle part of described holding set, the pin is fixed through lock-screw with activity cone core
Connection.When hydraulic cylinder piston is moved to right, activity cone core drives through multiple pins and keeps set to move to right, and preceding wedge, retread radial wedge pressure
Disappear, workpiece is unclamped automatically.
Preceding wedge outer surface described in is provided with annular groove, and preceding wedge auxiliary positioning spring is provided with described annular groove；
Rear wedge outer surface described in is provided with annular groove, and rear wedge auxiliary positioning spring is provided with described annular groove.Further increase
Strong locating effect between preceding wedge, rear wedge and workpiece.
Sealing ring is provided with the axle for keeping set binding site, holding can be limited and be enclosed within axial stroke.
Brief description of the drawings
Fig. 1 is the structural representation of bipyramid wedge self-centering fixture of the invention；
Fig. 2 is sectional views of the Fig. 1 along line A-A.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, bipyramid wedge self-centering fixture of the invention, including the mandrel 2 on lathe is connected to through flange 1,
It is characterized in that：The inner chamber of the mandrel 2 is provided with pull bar 3, and the pull bar 3 is connected in the side of flange 1 with hydraulic cylinder piston 4；Institute
Fixed axoid 20 is cut with along its excircle on the mandrel 2 stated, activity cone core 5, the fixed cone are set with described pull bar 3
Holding set 6 is set with pull bar 3 between face 20 and activity cone core 5, it is described to keep 6 front ends of set to be provided with and fixed axoid 20
The preceding wedge 7 matched somebody with somebody, it is described to keep 6 rear ends of set to be provided with the rear wedge 8 matched with activity cone core 5；The outside of the activity cone core 5
Terminal pad 9 is set with pull bar 3, the terminal pad 9 is fixed on pull bar 3 through multiple nuts 90.
As shown in Figure 2, in axial direction, preceding wedge 7 can be covered on 6 along keeping set 6 to slide in order to preceding wedge 7 is assembled into holding,
Various assembling modes can be taken, as one of implementation, some fins 60 is provided with the described excircle for keeping cover 6,
The inner chamber of described preceding wedge 7 matches setting groove accordingly, and groove coordinates with the gap of fin 60, realizes relative slip.
The described middle part of holding set 6 has been disposed radially multiple pins 61, and the pin 61 is through lock-screw 62 and activity
Cone core 5 is fixedly connected.
The outer surface of preceding wedge 7 described in is provided with annular groove, and preceding wedge auxiliary positioning spring is provided with described annular groove
70；The outer surface of rear wedge 8 described in is provided with annular groove, and rear wedge auxiliary positioning spring 80 is provided with described annular groove.
Sealing ring 21 is provided with the axle 2 for keeping 6 binding sites of set.
Clamping process of the present invention：Cylinder jacket 10 is sleeved on outside preceding wedge 7, rear wedge 8, hydraulic cylinder piston 4 is moved to left, through drawing
Bar 3 tenses terminal pad 9, activity cone core 5, keeps set 6 successively, and preceding wedge 7 is along fixed axoid 20, rear wedge 8 along activity cone core 5
The conical surface is moved radially, and locking cylinder covers 10 inner chambers, then can be processed operation.
Blanking process of the present invention：Hydraulic cylinder piston 4 is moved to right, and axial compressive force disappears, and activity cone core 5 is moved to right, the band of distribution 61
Dynamic to keep set 6 to move to right, preceding wedge 7, the radial pressure of rear wedge 8 are disappeared, and cylinder jacket 10 can be removed.
Claims (1)
1. a kind of bipyramid wedge self-centering fixture, including through flange（1）It is connected to the mandrel on lathe（2）, it is characterised in that：Institute
State mandrel（2）Inner chamber is provided with pull bar（3）, the pull bar（3）In flange（1）Side and hydraulic cylinder piston（4）Connection；Described
Mandrel（2）On be cut with fixed axoid along its excircle（20）, described pull bar（3）On be set with activity cone core（5）, it is described solid
Determine the conical surface（20）With activity cone core（5）Between pull bar（3）On be set with holding set（6）, it is described to keep set（6）Front end is provided with
With fixed axoid（20）The preceding wedge of matching（7）, it is described to keep set（6）Rear end is provided with and activity cone core（5）What is matched retreads
Wedge（8）；The activity cone core（5）The pull bar in outside（3）On be set with terminal pad（9）, the terminal pad（9）Through multiple nuts
（90）It is fixed on pull bar（3）On；Described holding set（6）Middle part has been disposed radially multiple pins（61）, the pin（61）
Through lock-screw（62）With activity cone core（5）It is fixedly connected；Preceding wedge described in（7）Outer surface is provided with annular groove, described
Preceding wedge auxiliary positioning spring is provided with annular groove（70）；Rear wedge described in（8）Outer surface is provided with annular groove, described ring
Rear wedge auxiliary positioning spring is provided with groove（80）；Covered with holding（6）The mandrel of binding site（2）On be provided with sealing ring
（21）.
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 CN104551072A (en) | 2015-04-29 |
| CN104551072B true CN104551072B (en) | 2017-06-30 |
Family
ID=53068727
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)
| Country | Link |
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| CN (1) | CN104551072B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106903539B (en) * | 2017-04-12 | 2023-06-27 | 沈机集团昆明机床股份有限公司 | Measuring mandrel for positioning crankshaft hole of engine cylinder body |
| 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 |
| CN110027983B (en) * | 2019-04-23 | 2020-11-06 | 杭州富阳春江汽车空调厂 | Prefabricated T roof beam template L type hoist |
| 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 |
| CN114770025B (en) * | 2022-06-21 | 2022-10-14 | 四川航天长征装备制造有限公司 | Double-angle wedge sliding block piston ring |
| CN115383160B (en) * | 2022-10-27 | 2023-05-26 | 宁波众鑫里美科技有限公司 | Bipyramid internal expanding clamp of automobile motor casing |
| 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 (6)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10059209A1 (en) * | 2000-11-29 | 2002-06-13 | Roehm Gmbh | Clamping device for a hollow shaft |
-
2014
- 2014-12-12 CN CN201410760509.6A patent/CN104551072B/en active Active
Patent Citations (6)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104551072A (en) | 2015-04-29 |
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