CN105290438B - Self-locking linkage expanding block device for improving part machining rigidity - Google Patents
Self-locking linkage expanding block device for improving part machining rigidity Download PDFInfo
- Publication number
- CN105290438B CN105290438B CN201510810520.3A CN201510810520A CN105290438B CN 105290438 B CN105290438 B CN 105290438B CN 201510810520 A CN201510810520 A CN 201510810520A CN 105290438 B CN105290438 B CN 105290438B
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- Prior art keywords
- self
- expansion block
- expanding block
- cam
- lever
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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
- B23B31/4073—Gripping the work or tool between planes almost perpendicular to the axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/64—Thin walled components
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a self-locking linkage expanding block device for improving part machining rigidity. A rotatable cam is arranged on a base. A notch is formed in the inner side of the cam. The inner side of the cam is connected with an ejecting pin in an abutting manner. A drive plate is arranged outside the cam. A support is arranged on the base and provided with a threaded hole. An ejecting screw is connected with the drive plate in an abutting manner after passing the threaded hole in a screwed manner. The ejecting pin is connected with a lever in an abutting manner. The lever rotates around a hinge support. The other end of the lever is connected with an expanding block in an abutting manner. The expanding block is connected with the inner side of a workpiece in an abutting manner. The self-locking linkage expanding block device further comprises a bearing base arranged on the base. The bearing base is provided with an ejecting pin hole. The ejecting pin slides in the ejecting pin hole. A blocking pin hole is formed in the upper portion of the bearing base. The expanding block is arranged above the bearing base. A blocking pin is inserted in the blocking pin hole. A compression spring is arranged between the blocking pin and the expanding block. The self-locking linkage expanding block device further comprises a pressing plate, a positioning ring and a pressing ring which are used for fixing the workpiece. By means of the self-locking linkage expanding block device, the part forming effect in the thin-walled part machining process is improved. By means of the mechanical self-locking manner, stability of the application process of the self-locking linkage expanding block device is ensured.
Description
Technical field
The present invention relates to field of machining, specifically a kind of self-locking linkage expansion block device.
Background technology
All kinds of casings and annex majority of aero-engine are thin-walled parts, exist always during Milling Process in the face of carrying out and become
Shape problem, is in particular in after carrying out rough milling, irregular deformation occurs in casing outline, not only causes face finish-milling surplus not
, and influence subsequent openings system position and form accuracy, so as to influence the assembling quality of part.
Before this, in the face of carrying out Milling Process using traditional aiding support, each single point supporting is individually locked, by part plus
Construction equipment profile is limited, it is difficult to arrange enough, the effective strong point.For this reason, it may be necessary to using more feasible than traditional aiding support
Effective device, overcomes cutting force to act on the problem on deformation for causing.At present, the power unit of the bearing unit for being used in part processing
Part mainly has the forms such as electronic, pneumatic, hydraulic pressure, gas-liquid conversion and connecting rod self-locking mechanism.Using electronic, pneumatic or hydraulic pressure branch
The mode of holding need to keep by external impetus equipment, install complicated, there is potential safety hazard.From the parts number for reducing bearing unit
Amount, the angle for simplifying device and convenient use operation is set out, the linkage expansion block mechanism of a kind of utilization mechanical self-latching, with higher
Practical value.
Additionally, it is general for ring-shaped thin-walled part using multiple single-point separate supports, the auxiliary body of independent locking, so
Realize that the function of aiding support is accomplished by locking one by one, mechanism is complicated, act cumbersome；Or limited by space cannot realize branch
The effective arrangement held, the reduction of supporting role effect.
The content of the invention
A kind of swelling device of the thin-wall parts such as all kinds of casings and annex it is an object of the invention to provide aero-engine,
Concrete technical scheme is as follows：
One kind improves part and processes rigid self-locking linkage expansion block device, it is characterised in that：Set on base rotatable
Cam, cam inner side set recess, and cam inner side abuts with ejector pin, and cam outside sets driving plate, and bearing is set on base, props up
Hole is threaded on seat, puller bolt is abutted after being threaded through the screwed hole with driving plate；Ejector pin is abutted with lever, lever around hinge
Bearing is rotated, and the other end of lever is abutted with expansion block；Expansion block is abutted with workpiece inner side；Also include fulcrum bearing, support base is set
On base, and support base sets knock hole, and ejector pin is slided in knock hole；Support base top sets backing pin hole, and expansion block sets
Put in the top of support base, in backing pin insertion backing pin hole, compression spring is set between backing pin and expansion block；Also include for fixing workpiece
Pressing plate, locating ring and pressure ring.
Cam inner side sets multiple uniform recesses, correspondingly sets multiple ejector pins, lever, rocker bar bearing and expansion block.
The recess includes bevel phase and curved sections.The bevel phase with slowly to hold out against process corresponding, curved sections and release
Process correspondence.
The puller bolt is two groups, is symmetrical arranged at the two ends of bearing；Two groups of puller bolts are respectively intended to two sides
To rotation cam.
The present invention solves following technical problem：
(1) in order to meet the rigidity requirement in part process, the part deformation that reduction causes because cutting force is excessive, dress
The uniform expansion block in many places is installed, is fitted with the inwall of part, the excircle dimension of expansion block is equal to the inner ring dimensional tolerance of part.
(2) in order to ensure the uniformity of expansion block swelling, it is ensured that the roundness of external circle of expansion block and axiality requirement in process,
Many places lever is driven using ring cam set simultaneously, and expansion block is ejected with each lever, so as to realize swelling while expansion block.
(3) in order to avoid using external impetus device drives bearing unit, using bolt ejecting mechanism driving cam at
Rotate, simple to operate, because using mechanical self-latching, in the absence of leakage, the problems such as noise, environmental protection is easy to operate.
(4) from drive mechanism to supporting device, the compact conformation of device, while supporting functions are realized, to greatest extent
Space availability ratio is improve, for part process equipment provides effective working space.
Beneficial effects of the present invention
The application of the device improves the molding effect of part during thin-walled parts machine adds.Effectively supporting, the increasing of expansion block
Add the rigidity of part, reduce the machining deformation of part；The ejecting mechanism of ring cam set activation lever, ensure that expansion block is swollen
Tight uniformity；The locking mode of mechanical self-latching ensure that the stability in device application process；Compact knot between unit
Structure, for the use scope for expanding process equipment provides possibility；Its easily mode of operation will greatly save clamping time of part,
Reduce the labour intensity of workman.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is expansion block partial schematic diagram；
Fig. 4 is that self-locking drives schematic diagram；
Fig. 5 is recess schematic diagram；
In figure, 1-base, 2-fulcrum bearing, 3-locating ring, 4-expansion block, 5-pressing plate, 6-lever, 7-rocker bar bearing,
8-ejector pin, 9-cam, 10-backing pin, 11-pressure ring, 12-driving plate, 13-puller bolt, 14-recess, 15-bearing,
141-recess bevel phase, 142-recess curved sections.
Specific embodiment
The present invention is illustrated below in conjunction with the accompanying drawings, as Figure 1-Figure 5：
(1) base 1 is the pedestal of mechanism, and the main supporting member of mechanism will be attached thereto, base 1 or mechanism with
The interface that equipment is installed.Fulcrum bearing 2 is fixed on base 1, is the main support of mechanism's other functions element.
(2) expansion block 4 is the executive component that the device finally realizes tensioner.
(3) effect of locating ring 3 not only acts as the positioning action of part, and is the spacing of expansion block 4.
(4) Main Function of pressing plate 5 is compressing component, it is ensured that the stabilization of part processing.
(5) in operation (as shown in Figure 3), to realize the linkage of expansion block everywhere, 10 are provided with cam 9 (such as Fig. 5)
The uniform groove in place, operationally, 10 ejector pins are simultaneously mobile, promote the around hinge bearing 7 of lever 6 to rotate so that lever 6 holds out against
Expansion block, and then cause expansion block swelling.Pressure ring 11 ensures the correct turned position of cam 9.
(6) as shown in Fig. 2 driving plate 12, puller bolt 13 is the dynamical element of single unit system.
(7) as shown in figure 4, the Main Function of bearing 15 is supporting puller bolt 13.
(8) beveled end of recess 14 corresponds respectively to hold out against and discharge two processes with the setting of curved sections, its inclined-plane
Angle of inclination, the shape of the length on inclined-plane and curved surface, arc length are corresponding with specific workpiece, are considered as wall thickness, the material of workpiece
Influenceed etc. factor.
Concrete structure is：Rotatable cam 9, the inner side of cam 9 are set on base 1 recess 14, the inner side of cam 9 and top are set
Pin 8 is abutted, and the outside of cam 9 sets driving plate 12, and bearing 15 is set on base, and hole, puller bolt 13 are threaded on bearing 15
Abutted with driving plate 12 after being threaded through the screwed hole；Ejector pin 8 is abutted with lever 6, and the around hinge bearing 7 of lever 6 rotates, lever 6
Other end is abutted with expansion block 4；Expansion block 4 is abutted with workpiece inner side；Also include fulcrum bearing 2, support base 2 is arranged on base 1, and
And support base 2 sets knock hole, ejector pin 8 is slided in knock hole；The top of support base 2 sets backing pin hole, and expansion block 4 is arranged on support
The top of seat 2, in the insertion backing pin of backing pin 10 hole, sets compression spring 16 between backing pin 10 and expansion block 4；Also include for fixing workpiece
Pressing plate 5, locating ring 3 and pressure ring 11.
The inner side of cam 9 sets multiple uniform recesses 14, correspondingly set multiple ejector pins 8, lever 6, rocker bar bearing 7 and
Expansion block 4.
The recess 14 includes bevel phase 141 and curved sections 142.The bevel phase 141 is bent with slowly to hold out against process corresponding
Face section 142 is corresponding with release process.
The puller bolt 13 is two groups, is symmetrical arranged at the two ends of bearing 15；Two groups of puller bolts are respectively intended to two
Individual direction rotation cam 9.
Action process of the invention is：
(1) during tensioner, driving plate 12 is promoted come rotation cam 9 by with puller bolt 13, now ejector pin 8 is from convex
The recess of wheel 9 is slided to the bevel phase smooth of the recess of cam, and then promotes the around hinge bearing 7 of lever 6 to rotate, now thick stick
Bar 6 can gradually eject expansion block 4.When expansion block 4 is increased to the inner ring locating dimension of locating ring 3, tensioner terminates, while ejector pin
The 8 smooth places for reaching exactly to cam, realize auto-lock function, i.e., in the course of the work, expansion block will not loosen or return.Part is swollen
Part end face is compressed using pressing plate 5 after tight, you can be processed.
(2) after process finishing, pressing plate 5 is first dismantled, cam 9 is reverse to be turned to promote driving plate 12 to make using puller bolt 14 afterwards
It is dynamic, then ejector pin 8 will be moved from from smooth to the curved sections of depression, and expansion block 4 can return to original in the presence of compression spring 16
Position, and then the backwards rotation of 6 around hinge bearing of lever 7.The now release operation of expansion block 4 is completed, and can remove part afterwards.
This mechanism is practical, and reliability is high, and various sizes of part similar to structure is machined with very strong reference and makees
With.To improving part processing precision, improving parts fixation efficiency has good application prospect.
Claims (4)
1. a kind of part that improves processes rigid self-locking linkage expansion block device, it is characterised in that：Set rotatable convex on base
Wheel, cam inner side set recess, and cam inner side abuts with ejector pin, and cam outside sets driving plate, and bearing, bearing are set on base
On be threaded hole, holds out against screw is abutted after being threaded through the screwed hole with driving plate；Ejector pin is abutted with lever, lever around hinge branch
Seat rotation, the other end of lever is abutted with expansion block；Expansion block is abutted with workpiece inner side；Also include fulcrum bearing, support base is arranged on
On base, and support base sets knock hole, and ejector pin is slided in knock hole；Support base top sets backing pin hole, and expansion block is set
In the top of support base, backing pin insertion backing pin hole, compression spring is set between backing pin and expansion block；Also include for fixing workpiece
Pressing plate, locating ring and pressure ring.
2. self-locking according to claim 1 linkage expansion block device, it is characterised in that：Cam inner side sets multiple uniform recessed
Mouthful, multiple ejector pins, lever, rocker bar bearing and expansion block are correspondingly set.
3. self-locking according to claim 1 linkage expansion block device, it is characterised in that：The recess includes bevel phase and curved surface
Section.
4. self-locking according to claim 1 linkage expansion block device, it is characterised in that：The holds out against screw is two groups, in branch
The two ends of seat are symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810520.3A CN105290438B (en) | 2015-11-20 | 2015-11-20 | Self-locking linkage expanding block device for improving part machining rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810520.3A CN105290438B (en) | 2015-11-20 | 2015-11-20 | Self-locking linkage expanding block device for improving part machining rigidity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105290438A CN105290438A (en) | 2016-02-03 |
| CN105290438B true CN105290438B (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510810520.3A Active CN105290438B (en) | 2015-11-20 | 2015-11-20 | Self-locking linkage expanding block device for improving part machining rigidity |
Country Status (1)
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| CN (1) | CN105290438B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091373B (en) * | 2020-09-10 | 2021-11-16 | 中国航发贵州黎阳航空动力有限公司 | Device and method for controlling welding shrinkage deformation of fuel header pipe |
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| US8191879B2 (en) * | 2010-09-09 | 2012-06-05 | Man Sung Jang | Vise pads for accurate work piece alignment |
| CN102649237A (en) * | 2012-05-28 | 2012-08-29 | 长城汽车股份有限公司 | Steering knuckle center hole and brake caliper mounting hole processing clamp |
| CN102837202A (en) * | 2012-09-18 | 2012-12-26 | 山东神戎电子股份有限公司 | Reinforced lockable device |
| CN103223506A (en) * | 2013-04-08 | 2013-07-31 | 苏州市亿特隆电器有限公司 | Clamp for processing thin-walled steel tubes |
| CN203236242U (en) * | 2013-05-22 | 2013-10-16 | 宁波跃进汽车前桥有限公司 | Workpiece self-locking auxiliary supporting device |
| CN104385006A (en) * | 2014-10-20 | 2015-03-04 | 芜湖市泰能电热器具有限公司 | Drilling clamp for casing |
| CN204262394U (en) * | 2014-10-09 | 2015-04-15 | 天津铁路信号有限责任公司 | A kind of self centering hole processing device |
| CN204321904U (en) * | 2014-11-15 | 2015-05-13 | 西安志越机电科技有限公司 | Inclined-plane self-locking manual hold down gag |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050183488A1 (en) * | 2004-02-19 | 2005-08-25 | Cheng-Chung Chen | Plate and tube bending device |
| DE102007057617B4 (en) * | 2007-11-30 | 2009-12-24 | Airbus Deutschland Gmbh | Device for tool-free height adjustment of an assembly |
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2015
- 2015-11-20 CN CN201510810520.3A patent/CN105290438B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8191879B2 (en) * | 2010-09-09 | 2012-06-05 | Man Sung Jang | Vise pads for accurate work piece alignment |
| CN102649237A (en) * | 2012-05-28 | 2012-08-29 | 长城汽车股份有限公司 | Steering knuckle center hole and brake caliper mounting hole processing clamp |
| CN102837202A (en) * | 2012-09-18 | 2012-12-26 | 山东神戎电子股份有限公司 | Reinforced lockable device |
| CN103223506A (en) * | 2013-04-08 | 2013-07-31 | 苏州市亿特隆电器有限公司 | Clamp for processing thin-walled steel tubes |
| CN203236242U (en) * | 2013-05-22 | 2013-10-16 | 宁波跃进汽车前桥有限公司 | Workpiece self-locking auxiliary supporting device |
| CN204262394U (en) * | 2014-10-09 | 2015-04-15 | 天津铁路信号有限责任公司 | A kind of self centering hole processing device |
| CN104385006A (en) * | 2014-10-20 | 2015-03-04 | 芜湖市泰能电热器具有限公司 | Drilling clamp for casing |
| CN204321904U (en) * | 2014-11-15 | 2015-05-13 | 西安志越机电科技有限公司 | Inclined-plane self-locking manual hold down gag |
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| Publication number | Publication date |
|---|---|
| CN105290438A (en) | 2016-02-03 |
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| PB01 | Publication | ||
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
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| CP01 | Change in the name or title of a patent holder |