CN102728765A - Annular part fixture - Google Patents
Annular part fixture Download PDFInfo
- Publication number
- CN102728765A CN102728765A CN2012102361043A CN201210236104A CN102728765A CN 102728765 A CN102728765 A CN 102728765A CN 2012102361043 A CN2012102361043 A CN 2012102361043A CN 201210236104 A CN201210236104 A CN 201210236104A CN 102728765 A CN102728765 A CN 102728765A
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- claw
- jaw
- steel wire
- seat
- spring steel
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Abstract
The invention relates to an annular part fixture, which comprises a three-jaw wedge power chuck seat and a plurality of base jaws arranged on the three-jaw wedge power chuck seat. The annular part fixture is characterized in that the base jaws are fixedly connected with a clamping jaw hydraulic seat, a plurality of clamping jaw base holes are evenly arranged on the clamping jaw hydraulic seat with the circle center of the three-jaw wedge power chuck seat serving as the axle center, clamping jaw pistons and clamping jaws are successively arranged in the clamping jaw base holes, and the clamping jaw pistons push the clamping jaw to perform radial motion along the circle center of the three-jaw wedge power chuck seat under the action of internal hydraulic oil of the clamping jaw base holes. The annular part fixture can clamp irregularly-shaped annular forge piece blanks evenly and has the advantages that clamping force is more balanced, residual stress is remarkably reduced, required clamping force is smaller and clamping rigidity is larger, and clamping is firm.
Description
Technical field
The present invention relates to a kind of anchor clamps of fixing workpiece, relate in particular to a kind of anchor clamps to ring-shaped work pieces.
Background technology
The circular thin-wall part very easily deforms in clamping and process, wayward machining accuracy and raising working (machining) efficiency.Machining deformation and working (machining) efficiency become the bottleneck problem of circular thin-wall part processing.Anchor clamps are thin-walled links in the circular thin-wall part processing process, although old-fashioned soft pawl and spring perch are replaced by more advanced floating clamp, the floating clamp clamping force is relatively more balanced comparatively speaking.Present widely used have circular arc type floating clamp and axle formula floating clamp; But some problems have in use also been found; Circular arc type floating clamp clamping workpiece is firm but floatability is relatively poor, and axle formula floating clamp floatability is good but claw intensity is not high, fractures easily; And the fastness of clamping workpiece is relatively poor, and workpiece is easier to come off.
Summary of the invention
The present invention provides a kind of ring-shaped work pieces anchor clamps; Frame for movement and hydraulic structure are combined, taken into account the advantage of machinery and hydraulic structure, can balanced clamping ring-shaped work pieces blank in irregular shape in process; Compare clamping force equilibrium more with floating clamp with soft pawl; Significantly reduced residual stress, practice shows this to reducing nip stress, and the strain that reduces in quenching distortion and the use is highly profitable.Compare with axle formula floating clamp with present widely used circular arc type floating clamp, needed clamping force is littler and the clamping rigidity is bigger, and clamping is firm.
For realizing above-mentioned purpose; Ring-shaped work pieces anchor clamps provided by the invention; Comprise three-jaw wedge type power chuck seat 1 and some basic pawls 2 that are positioned on the said three-jaw wedge type power chuck seat 1; Be fixedly connected with claw hydraulic pressure seat 3 on the said basic pawl 2; Be that some claw datum hole 3-1 are evenly arranged in the axle center with three-jaw wedge type power chuck seat 1 center of circle on the said claw hydraulic pressure seat 3, be provided with claw piston 5 and claw 7 in the said claw datum hole 3-1 successively, promotion claw 7 is done radial motion along the center of circle of three-jaw wedge type power chuck seat 1 effect of said claw piston 5 hydraulic oil in claw datum hole 3-1 under.
Further, said claw 7 front ends are provided with radially claw spring steel wire hole 7-1, on the said claw hydraulic pressure seat 3 master jaw spring steel wire hole 3-2 are arranged; Spring steel wire 8 one ends insert in the said claw spring steel wire hole 7-1, and the other end inserts in the said master jaw spring steel wire hole 3-2; Said spring steel wire 8 is positioned at the axis hole of spring steel wire fixed screw 9; Said spring steel wire fixed screw 9 is threaded with said claw hydraulic pressure seat 3.
Further, said claw hydraulic pressure seat 3 is provided with hydraulic pressure oil duct 3-4 and arc seal receptacle 4, and said hydraulic pressure oil duct 3-4 is communicated with each claw datum hole 3-1 respectively.
Further, said arc seal receptacle 4 is provided with pouring orifice plug 4-1 and hydraulic hose connector 4-2, and said hydraulic hose connector 4-2 is connected with hydraulic hose 10.
Further; Said three-jaw wedge type power chuck seat 1 center fixation has end face locating ring 12; Said end face locating ring 12 external diameters are slightly smaller than annular workpieces 13, and said end face locating ring 12 internal diameters are a bit larger tham annular workpieces 13, and said end face locating ring 12 is concentric with said three-jaw wedge type power chuck seat 1.
Further, said claw piston 5 is provided with piston seal 6.
The present invention compared with prior art has following advantage: frame for movement and hydraulic structure are combined; Taken into account the advantage of machinery and hydraulic structure; Can balanced clamping annular forging piece blank in irregular shape, clamping force is balanced more, and residual stress significantly descends; Needed clamping force is littler and the clamping rigidity is bigger, and clamping is firm.
Description of drawings
Fig. 1 is ring-shaped work pieces anchor clamps overall appearance figure.
Fig. 2 is a ring-shaped work pieces clamp member structure connection layout.
Fig. 3 is the claw hydraulic pressure seat parts decomposing schematic representation of ring-shaped work pieces anchor clamps.
Fig. 4 is A-A directional profile figure among Fig. 3.
Fig. 5 is the hydraulic pressure oil duct sketch map of ring-shaped work pieces anchor clamps.
Wherein: 1 three-jaw wedge type power chuck seat, 2 basic pawls, 3 claw hydraulic pressure seats, 3-1 claw datum hole, 3-2 master jaw spring steel wire hole; 3-4 hydraulic pressure oil duct, 4 arc seal receptacles, 4-1 pouring orifice plug, 4-2 hydraulic hose connector, 5 claw pistons; 6 piston packings, 7 claws, 7-1 claw spring steel wire hole, 8 spring steel wires, 9 spring steel wire fixed screws; 10 hydraulic hoses, 11 hydraulic oil, 12 end face locating rings, 13 annular workpieces, 14 hydraulic oil.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer, the present invention is done further detailed explanation in conjunction with accompanying drawing.
Like Fig. 1, ring-shaped work pieces anchor clamps of the present invention shown in Figure 2 comprise three-jaw wedge type power chuck seat 1, basic pawl 2, claw hydraulic pressure seat 3, arc seal receptacle 4, claw 7, hydraulic hose 10, end face locating ring 12, annular workpieces 13.Be several claw datum holes of the radial even distribution in axle center 3-1 with three-jaw wedge type power chuck seat 1 center of circle on the claw hydraulic pressure seat 3; Run through claw hydraulic pressure seat 3 before and after this claw datum hole 3-1; Claw datum hole 3-1 and claw piston 5 integral body are slidingly matched; Claw piston 5 front ends contact with claw 7, and claw piston 5 rear ends contact with hydraulic oil 14, promote claw 7 under the effect of claw piston 5 hydraulic oil in claw datum hole 3-1 and do radial motion along the center of circle of three-jaw wedge type power chuck seat 1; Claw 7 is slidingly matched with claw datum hole 3-1 integral body, and claw 7 front end faces contact with annular workpieces 13 cylindricals, and claw 7 rear end faces contact with claw piston 5 front end faces, and claw 7 front ends had the radially claw spring steel wire hole 7-1 of claw 7 axis; Master jaw spring steel wire hole 3-2 is arranged on the claw hydraulic pressure seat 3; Insert in the master jaw spring steel wire hole 3-2 spring steel wire 8 upper ends; Insert in the claw spring steel wire hole 7-1 lower end; Spring steel wire 8 upper ends are positioned at the axis hole of spring steel wire fixed screw 9, and spring steel wire fixed screw 9 is through being threaded moving axially of restraining spring steel wire 8 with claw hydraulic pressure seat 3.
Claw hydraulic pressure seat parts decomposing schematic representation like Fig. 3, ring-shaped work pieces anchor clamps shown in Figure 4; Arc seal receptacle 4 is positioned at the outside of claw hydraulic pressure seat 3; Pouring orifice plug 4-1 and hydraulic hose connector 4-2 are arranged on the arc seal receptacle 4, and hydraulic hose connector 4-2 is communicated with each hydraulic hose 10 respectively.
The hydraulic pressure oil duct sketch map of ring-shaped work pieces anchor clamps as shown in Figure 5; Claw hydraulic pressure seat 3 is provided with hydraulic pressure oil duct 3-4 and arc seal receptacle 4, and hydraulic pressure oil duct 3-4 is communicated with each claw datum hole 3-1, this claw piston 5 respectively; Claw datum hole 3-1; The sealed hydraulic oil pocket that hydraulic pressure oil duct 3-4 and 4 formation one of arc seal receptacle are interconnected is full of hydraulic oil 14 in the sealed hydraulic oil pocket, each point pressure equates.Arc seal receptacle 4 is provided with pouring orifice plug 4-1 and hydraulic hose connector 4-2, and hydraulic hose connector 4-2 is connected with hydraulic hose 10.End face locating ring 12 is fixed on the three-jaw wedge type power chuck seat 1, and its external diameter is slightly smaller than annular workpieces 13, and internal diameter is a bit larger tham annular workpieces 13 and concentric with pawl wedge type power chuck seat 1.
2 have three, and claw hydraulic pressure seat 3 is separately fixed on three basic pawls 2, entad can on three-jaw wedge type power chuck seat 1, do synchronously or centrifugal motion (like Fig. 2).During unclamped state because spring steel wire 8 lower ends are inserted claw spring steel wire hole 7-1 and are slidingly matched; Can flexibly claw 7 be remained on an ad-hoc location and limit it and move axially; Starting the hydraulic means that links to each other with three-jaw wedge type power chuck seat 1 this moment makes basic pawl 2 make centrifugal motion to an ad-hoc location; This ad-hoc location can guarantee that claw 7 front end faces and annular workpieces 13 cylindricals have certain distance, and this moment is with roughly concentric of the end face applying of end face of annular workpieces 13 and end face locating ring 12 and maintenance and end face locating ring 12; Start the pressure that the hydraulic means that links to each other with three-jaw wedge type power chuck seat 1 makes basic pawl 2 entad move and contact with annular workpieces 13 cylindricals and keep setting up to claw 7 front end faces then; This moment, claw 7 rear end faces contacted with claw piston 5 front end faces respectively; The axial location of diverse location claw 7 can change along with the difference of annular workpieces 13 outer round surface shapes; Claw 7 will overcome the elastic force that spring steel wire 8 distortion produces in this course and since compare with clamping force elastic force very I to ignore.Because the hydraulic oil of hydraulic fluid chamber 14 pressure everywhere equates; Can't help the diameter of claw piston 5, claw 7 of position also equates; So the clamping force that the claw 7 of diverse location provides equates; This has just guaranteed that clamping force is in admirable proportion on annular workpieces 13 cylindricals, and the excessive strain that can not cause because of annular workpieces 13 local shape differences has fundamentally solved the unbalanced problem of the irregular clamping force that causes of annular workpieces blank shape.
In the such scheme, quantity that can be total according to the size of annular workpieces 13 decision claw 7, but should accomplish that claw 7 along the circumferential direction evenly distributes, and also claw 7 total quantity should be many as far as possible to guarantee that clamping force is balanced.
Claims (6)
1. ring-shaped work pieces anchor clamps; Comprise three-jaw wedge type power chuck seat (1) and some basic pawls (2) that is positioned on the said three-jaw wedge type power chuck seat (1); It is characterized in that; Be fixedly connected with claw hydraulic pressure seat (3) on the said basic pawl (2); It is that some claw datum holes (3-1) are evenly arranged in the axle center that said claw hydraulic pressure seat (3) is gone up with three-jaw wedge type power chuck seat (1) center of circle, is provided with claw piston (5) and claw (7) in the said claw datum hole (3-1) successively, promotes claw (7) under the effect of said claw piston (5) hydraulic oil in claw datum hole (3-1) and does radial motion along the center of circle of three-jaw wedge type power chuck seat (1).
2. ring-shaped work pieces anchor clamps as claimed in claim 1 is characterized in that, said claw (7) front end is provided with radially claw spring steel wire hole (7-1), and master jaw spring steel wire hole (3-2) is arranged on the said claw hydraulic pressure seat (3); Spring steel wire (8) one ends insert in the said claw spring steel wire hole (7-1), and the other end inserts in the said master jaw spring steel wire hole (3-2); Said spring steel wire (8) is positioned at the axis hole of spring steel wire fixed screw (9); Said spring steel wire fixed screw (9) is threaded with said claw hydraulic pressure seat (3).
3. ring-shaped work pieces anchor clamps as claimed in claim 1 is characterized in that, said claw hydraulic pressure seat (3) is provided with hydraulic pressure oil duct (3-4) and arc seal receptacle (4), and said hydraulic pressure oil duct (3-4) is communicated with each claw datum hole (3-1) respectively.
4. ring-shaped work pieces anchor clamps according to claim 3 is characterized in that, said arc seal receptacle (4) is provided with pouring orifice plug (4-1) and hydraulic hose connector (4-2), and said hydraulic hose connector (4-2) is connected with hydraulic hose (10).
5. ring-shaped work pieces anchor clamps as claimed in claim 1; It is characterized in that; Said three-jaw wedge type power chuck seat (1) center fixation has end face locating ring (12); Said end face locating ring (12) external diameter is slightly smaller than annular workpieces (13), and said end face locating ring (12) internal diameter is a bit larger tham annular workpieces (13), and said end face locating ring (12) is concentric with said three-jaw wedge type power chuck seat (1).
6. ring-shaped work pieces anchor clamps as claimed in claim 1 is characterized in that, said claw piston (5) is provided with piston seal (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236104.3A CN102728765B (en) | 2012-07-09 | 2012-07-09 | Annular part fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236104.3A CN102728765B (en) | 2012-07-09 | 2012-07-09 | Annular part fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102728765A true CN102728765A (en) | 2012-10-17 |
| CN102728765B CN102728765B (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210236104.3A Expired - Fee Related CN102728765B (en) | 2012-07-09 | 2012-07-09 | Annular part fixture |
Country Status (1)
| Country | Link |
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| CN (1) | CN102728765B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058714A (en) * | 2016-12-25 | 2017-08-18 | 重庆市骞焰机械有限责任公司 | Shaft member fixture of heat treatment |
| CN108705113A (en) * | 2018-06-22 | 2018-10-26 | 苏州磐岩精密机械有限公司 | Multiple spot equalization clamping device |
| CN109365540A (en) * | 2018-11-21 | 2019-02-22 | 泰尔重工股份有限公司 | A kind of axle sleeve locking apparatus by hydraulic control |
| CN109827853A (en) * | 2019-04-03 | 2019-05-31 | 河南交通职业技术学院 | A kind of pressure-shear test machine and its quick-locking device |
| CN110722472A (en) * | 2019-08-26 | 2020-01-24 | 武汉船用机械有限责任公司 | Annular part supporting device |
| CN111590359A (en) * | 2020-05-07 | 2020-08-28 | 安徽工程大学 | Multifunctional intelligent clamp |
| CN112828056A (en) * | 2020-12-25 | 2021-05-25 | 宁波凯明机器制造有限公司 | Dephosphorization system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4042364A1 (en) * | 1990-05-07 | 1991-11-14 | Xaver Kerling | Chuck securing irregular work - has hydraulic rams supplied by common pressurised reservoir and shut off individually |
| GB2330546A (en) * | 1997-10-24 | 1999-04-28 | Bernard Joseph Maughan | Adjustable trepanning cutting tool |
| CN1280897A (en) * | 1999-07-14 | 2001-01-24 | 厄罗瓦公司 | Device for clamping workpiece |
| US20080157487A1 (en) * | 2007-01-02 | 2008-07-03 | Hall David R | Hydraulic Chuck with Independently Moveable Jaws |
-
2012
- 2012-07-09 CN CN201210236104.3A patent/CN102728765B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4042364A1 (en) * | 1990-05-07 | 1991-11-14 | Xaver Kerling | Chuck securing irregular work - has hydraulic rams supplied by common pressurised reservoir and shut off individually |
| GB2330546A (en) * | 1997-10-24 | 1999-04-28 | Bernard Joseph Maughan | Adjustable trepanning cutting tool |
| CN1280897A (en) * | 1999-07-14 | 2001-01-24 | 厄罗瓦公司 | Device for clamping workpiece |
| US20080157487A1 (en) * | 2007-01-02 | 2008-07-03 | Hall David R | Hydraulic Chuck with Independently Moveable Jaws |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058714A (en) * | 2016-12-25 | 2017-08-18 | 重庆市骞焰机械有限责任公司 | Shaft member fixture of heat treatment |
| CN108705113A (en) * | 2018-06-22 | 2018-10-26 | 苏州磐岩精密机械有限公司 | Multiple spot equalization clamping device |
| CN109365540A (en) * | 2018-11-21 | 2019-02-22 | 泰尔重工股份有限公司 | A kind of axle sleeve locking apparatus by hydraulic control |
| CN109827853A (en) * | 2019-04-03 | 2019-05-31 | 河南交通职业技术学院 | A kind of pressure-shear test machine and its quick-locking device |
| CN110722472A (en) * | 2019-08-26 | 2020-01-24 | 武汉船用机械有限责任公司 | Annular part supporting device |
| CN110722472B (en) * | 2019-08-26 | 2021-08-06 | 武汉船用机械有限责任公司 | Annular part supporting device |
| CN111590359A (en) * | 2020-05-07 | 2020-08-28 | 安徽工程大学 | Multifunctional intelligent clamp |
| CN111590359B (en) * | 2020-05-07 | 2021-07-20 | 安徽工程大学 | Multifunctional intelligent clamp |
| CN112828056A (en) * | 2020-12-25 | 2021-05-25 | 宁波凯明机器制造有限公司 | Dephosphorization system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102728765B (en) | 2014-09-17 |
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Granted publication date: 20140917 Termination date: 20180709 |
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| CF01 | Termination of patent right due to non-payment of annual fee |