CN103111889A - Multi-point flexible fixture - Google Patents

Multi-point flexible fixture Download PDF

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Publication number
CN103111889A
CN103111889A CN2013100442943A CN201310044294A CN103111889A CN 103111889 A CN103111889 A CN 103111889A CN 2013100442943 A CN2013100442943 A CN 2013100442943A CN 201310044294 A CN201310044294 A CN 201310044294A CN 103111889 A CN103111889 A CN 103111889A
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CN
China
Prior art keywords
fixture
clamping
casing
base seat
base
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Application number
CN2013100442943A
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Chinese (zh)
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CN103111889B (en
Inventor
王彦
拿比尔·耿迪
刘建辉
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NOTTINGHAM NINGBO CHINA, University of
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NOTTINGHAM NINGBO CHINA, University of
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Priority to CN201310044294.3A priority Critical patent/CN103111889B/en
Publication of CN103111889A publication Critical patent/CN103111889A/en
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Publication of CN103111889B publication Critical patent/CN103111889B/en
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Abstract

The invention discloses a multi-point flexible fixture. The multi-point flexible fixture comprises base seat, a drive part, and a clamping part. The drive part is mainly composed of a guiding nut, a lead screw handle, and a lead screw. The clamping part is mainly composed of a fixed base seat, a moving base seat, and two clamping boxes. The fixed base seat is fixed on the base seat. The moving base seat is arranged on the base seat and is fixedly connected with the guiding nut. The two clamping boxes are respectively installed on the fixed base seat and the moving base seat. Each clamping box comprises a box body, wherein a front end face of the box body is opened, the back end face of the box body is provided with an air hole, a plurality of rows of fixture sheet layers are placed inside the box body and penetrate through the front end face of the box body, the fixture sheet layers are limited by a limiting block, each fixture sheet layer is formed by multiple frontal fixture sheets and multiple reversed fixture sheets being overlaid at intervals in sequence, and a positioning locking nut and a plurality of adjusting locking nuts are used for locking. The multi-point flexible fixture is simple in structure, and easy to operate. Besides, the multi-point flexible fixture can be used for clamping various complex parts quickly and efficiently, and has a good application prospect.

Description

The multi-point flexibly fixture
Technical field
The invention belongs to fixture clamping technical field, relate in particular to a kind of multi-point flexibly grip device.
Background technology
Aircraft industry is the concentrated reflection of a national industrial might, concentrates the sophisticated technology in each field in this field, and its sustainable development will promote the development of the technology such as new material, new technology and advanced manufacturing.For this reason, present stage, country greatly developed aircraft industry, meanwhile perplexed many technology and the equipment problem of its development and needed solution badly.
Aircraft manufacturing has that size is large, part shape is complicated and of a great variety, aerodynamic configuration strictly reaches the machining accuracy high.At present along with the breakthrough of the development of China's numeration system technology for making and high-end numerical control machine tool technique aspect thereof, machine adds part and has realized digital integrated manufacturing, but complex parts are because flexibility is large, are difficult to use the conventional brace clamping, therefore are difficult to realize omnidistance digitized flexible manufacturing.Domestic each large aviation group mainly adopts traditional analog quantity modus operandis such as loft model, use the profiling frame fixedly complex parts to realize follow-up machined, greatly increased preparatory period and the cost of aircraft manufacturing.Along with the increase of machine, its fixture has also taken a large amount of management resource and the stock's areas of enterprise.Therefore, the manufacturing of complex parts clamping has become the bottleneck that the full machine digitlization of aircraft is made, assembled.In addition, in steamer, motor-car manufacture process, also there is identical technical barrier.
Summary of the invention
The objective of the invention is provides a kind of multi-point flexibly fixture for the state of the art in above-mentioned complex parts manufacture process, and this multi-point flexibly fixture can be realized different size, the clamping of difform complex parts.
The present invention realizes that the technical scheme that above-mentioned technical purpose adopts is: a kind of multi-point flexibly fixture, it comprises base, drive part and retained part, wherein, drive part mainly is comprised of guiding nut, leading screw handle and leading screw, and retained part mainly is comprised of fixed pedestal, mobile foundation and two clamping casees; Base is a hollow box body, and a side has screw hole, and the top has gathering sill, and leading screw one end connects the leading screw handle, and the other end stretches into base by screw hole; Guiding nut and threads of lead screw spin, and from the gathering sill protuberate basic unit; Fixed pedestal is fixed on base, and mobile foundation is placed on base and with guiding nut and is fixedly connected with, and two clamping casees are arranged on respectively on fixed pedestal and mobile foundation; Described clamping case comprises a casing, the front end face opening of casing, and rear end face has passage, and some bar clamp sheets are placed in casing and are stretched out by the front end face of casing, and the fixture lamella is spacing by limited block; Every layer of fixture lamella is formed by stacking at the interval successively by the clamp sheet in a plurality of fronts and the clamp sheet of reverse side, and by location holding screw and the tightening of some adjusting holding screws.
Further, described clamping case can also comprise a fixture cover, and the fixture cover is clamped on the groove of casing, covers the front end face of casing, and can freely dismantle.
Further, described clamp sheet has groove, and limited block carries out spacing by this groove to clamp sheet.
Compared with prior art, beneficial effect of the present invention is as follows:
1, the present invention is simple in structure, easy operating;
2, become positive and negative two states by many clamp sheet and clamp sheet are set, can realize that fixture is to the multipoint clamping of complex parts;
3, by passage is set, clamp sheet is under resilient reasoning, can realize that to the greatest extent each clamp sheet with the complex parts contact, is unlikely to again to add and hinders workpiece;
4, by holding screw is set, the number of the clamp sheet that the work of can adjusting can free adjustment work, the width of clamping, thus adapt to the complex parts of different size and shape;
5, by the fixture cover is set, after installing the fixture cover, can realize the clamping task of conventional brace.
6, by the setting angle of rotating box, can realize the clamping task of different complex parts different azimuth, and then realize following process.
7, by multi-point flexibly fixture of the present invention can be fast, colleges and universities, clamping Various Complex part, have good application prospect.
Description of drawings
Fig. 1 is the front view of multiple spot shaping jig in the embodiment of the present invention;
Fig. 2 is the top view of clamp sheet in the embodiment of the present invention;
Fig. 3 is the front view of clamp sheet in the embodiment of the present invention;
Fig. 4 is the top view under the positive opposite state duty of clamp sheet in the embodiment of the present invention;
Fig. 5 is the front view under the positive opposite state duty of clamp sheet in the embodiment of the present invention;
Fig. 6 is the top view of retained part movably in the embodiment of the present invention;
Fig. 7 is the top view of installing the retained part of fixture cover in the embodiment of the present invention;
Fig. 8 is the front view of another installment state of casing in the embodiment of the present invention;
Fig. 9 is the front view of the another kind of way of realization of limit function in the embodiment of the present invention;
In figure, the clamp sheet 9 of the clamp sheet 5 in base 1, fixed pedestal 2, casing 3, passage 4, front, limited block 6, location holding screw 7, complex parts 8, reverse side, mobile foundation 10, guiding nut 11, leading screw handle 12, leading screw 13, adjusting holding screw 14, fixture cover 15, clamping piece 16, stay bolt 17.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail, it is pointed out that the following stated embodiment is intended to be convenient to the understanding of the present invention, and it is not played any restriction effect.
As shown in Figure 1, multi-point flexibly fixture of the present invention comprises base 1, drive part and retained part, wherein, drive part mainly is comprised of guiding nut 11, leading screw handle 12 and leading screw 13, and retained part mainly is comprised of fixed pedestal 2, mobile foundation 10 and two clamping casees.Base 1 is a hollow box body, and a side has screw hole, and the top has gathering sill, and leading screw 13 1 ends connect leading screw handles 12, and the other end stretches into base 1 by screw hole, can freely rotate base 1 is interior.Guiding nut 11 spins with leading screw 13 screw threads, and from gathering sill protuberate basic unit 1.Fixed pedestal 2 is fixed on base 1, and mobile foundation 10 is placed on base 1 and with guiding nut 11 and is fixedly connected with.Two clamping casees are arranged on respectively on fixed pedestal 2 and mobile foundation 10.
As Fig. 1 and shown in Figure 8, the clamping case comprises a casing 3, the front end face opening of casing 3, rear end face has passage 4, some rows (being two rows in Fig. 8) clamp sheet is placed in casing 3 and is stretched out by the front end face of casing 3, the fixture lamella is spacing by limited block 6, prevents that clamp sheet from being come off by the front end face of casing 3.As shown in Fig. 4-6, every layer of fixture lamella is formed by stacking at the interval successively by the clamp sheet 5 in a plurality of fronts and the clamp sheet 9 of reverse side, and by location holding screw 7(in the vertical direction) and some adjusting holding screw 14(on the direction perpendicular to paper) tightening.
The structure of clamp sheet is as shown in Fig. 2 and 3, and its top and bottom are parallel, and afterbody is smooth, and the centre has stopper slot, and head is asymmetrical shape, and when the clamp sheet 9 of the clamp sheet 5 in front and reverse side interval stack successively, the clamping complex parts 8 better.
As shown in Figure 7, the clamping case can also comprise a fixture cover 15, and fixture cover 15 is clamped on the groove of casing 3, covers the front end face of casing 3, and can freely dismantle.
As shown in Figure 9, the fixture lamella also can be spacing by stay bolt 17, and by clamping piece 16 tightenings.
The course of work of the present invention is as follows: at first, regulate holding screw 14 according to the developed width of complex parts 8, the clamp sheet 5,9 width adjustment that makes work is to width that can clamping complex parts 8; Simultaneously, regulate holding screw 7, clamp sheet 5,9 can be moved.
Then, toward the interior same gases at high pressure of casing 3, make the clamp sheet 5,9 of work to sinciput to limited block 6 by passage 4; Then, turning handle 12, under the driving of leading screw 13, guiding nut 11 moves, and drives mobile foundation 10 along moving on the axis direction of leading screw 13, and the distance between two clamping casees is reduced.
When the distance between two clamping casees is a bit larger tham the thickness of complex parts 8, complex parts 8 are placed in the middle of the clamping case, be rotated further handle 12, the clamp sheet 5,9 of the work of setting is all contacted with complex parts 8, at this moment, tighten holding screw 7, complete complex parts 8 clamping tasks, carry out follow-up machined.
To be processed complete, backward rotation leading screw 13 handwheels take off complex parts 8, make mobile foundation 10 get back to the home position.
Be more than the once complete course of work of multi-point flexibly fixture of the present invention, completed clamping task to the complex parts 8 of different size by this clamping process collection.
Above-described embodiment has been described in detail technical scheme of the present invention and beneficial effect; be understood that the above only is specific embodiments of the invention; be not limited to the present invention; all any modifications of making in principle scope of the present invention, replenish and be equal to replacement etc., within all should being included in protection scope of the present invention.

Claims (3)

1. multi-point flexibly fixture, it is characterized in that, it comprises base (1), drive part and retained part, wherein, drive part mainly is comprised of guiding nut (11), leading screw handle (12) and leading screw (13) etc., and retained part mainly is comprised of fixed pedestal (2), mobile foundation (10) and two clamping casees; Base (1) is a hollow box body, and a side has screw hole, and the top has gathering sill, and leading screw (13) one ends connect leading screw handle (12), and the other end stretches into base (1) by screw hole; Guiding nut (11) spins with leading screw (13) screw thread, and from gathering sill protuberate basic unit (1); Fixed pedestal (2) is fixed on base (1), and mobile foundation (10) is placed in base (1) upward and is fixedly connected with guiding nut (11), and two clamping casees are arranged on respectively on fixed pedestal (2) and mobile foundation (10); Described clamping case comprises a casing (3), and the front end face opening of casing (3), rear end face have passage (4), and some bar clamp sheets are placed in casing (3) and are stretched out by the front end face of casing (3), and the fixture lamella is spacing by limited block (6); Every layer of fixture lamella is formed by stacking at the interval successively by the clamp sheet (5) in a plurality of fronts and the clamp sheet (9) of reverse side, and by location holding screw (7) and some adjusting holding screws (14) tightening.
2. multi-point flexibly fixture according to claim 1, is characterized in that, described clamping case can also comprise a fixture cover (15), and fixture cover (15) is clamped on the groove of casing (3), covers the front end face of casing (3), and can freely dismantle.
3. multi-point flexibly fixture according to claim 1, is characterized in that, described clamp sheet has groove, and limited block (6) carries out spacing by this groove to clamp sheet.
CN201310044294.3A 2013-02-04 2013-02-04 Multi-point flexible fixture Active CN103111889B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310044294.3A CN103111889B (en) 2013-02-04 2013-02-04 Multi-point flexible fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310044294.3A CN103111889B (en) 2013-02-04 2013-02-04 Multi-point flexible fixture

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CN103111889A true CN103111889A (en) 2013-05-22
CN103111889B CN103111889B (en) 2015-12-23

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753309A (en) * 2014-01-24 2014-04-30 山东天岳先进材料科技有限公司 Clamping tool for irregular object
CN104708552A (en) * 2015-02-10 2015-06-17 吴中区甪直渡岘工艺品厂 Artware processing equipment
CN105149984A (en) * 2015-09-01 2015-12-16 上海大学 Clamp device
CN105945595A (en) * 2016-05-18 2016-09-21 常州市金海基机械制造有限公司 Clamp used for machining of mechanical parts
CN106392934A (en) * 2016-10-26 2017-02-15 惠州市黑娜尔科技有限公司 Clamp
CN106624560A (en) * 2016-12-29 2017-05-10 重庆王滔机械制造有限公司 Welding fixing device
CN109732503A (en) * 2018-12-20 2019-05-10 安徽米科智能科技有限公司 A kind of bracket distance-variable type fast uniform clamping device
CN111360564A (en) * 2020-04-22 2020-07-03 周江宏 Fool-proof device for numerical control machine tool workpiece processing safety

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107984334B (en) * 2017-11-30 2019-04-30 东北大学 A kind of positioning fixture for being positioned to artificial tooth

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0873816A2 (en) * 1997-04-22 1998-10-28 Stark, Emil, jr. Cylinder for positioning and quick-action clamping
CN1299728A (en) * 2000-12-04 2001-06-20 张月平 Flexible case producing line and its procedures and equipments
CN1490127A (en) * 2002-10-18 2004-04-21 中国科学技术大学 Flexible magnet rheological tongs
CN101570008A (en) * 2009-06-05 2009-11-04 广东工业大学 Flexible fixture device and operation method thereof
CN102083590A (en) * 2008-04-03 2011-06-01 诺丁汉大学 Engagement arrangement
CN203109668U (en) * 2013-02-04 2013-08-07 宁波诺丁汉大学 Multi-point flexible clamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0873816A2 (en) * 1997-04-22 1998-10-28 Stark, Emil, jr. Cylinder for positioning and quick-action clamping
CN1299728A (en) * 2000-12-04 2001-06-20 张月平 Flexible case producing line and its procedures and equipments
CN1490127A (en) * 2002-10-18 2004-04-21 中国科学技术大学 Flexible magnet rheological tongs
CN102083590A (en) * 2008-04-03 2011-06-01 诺丁汉大学 Engagement arrangement
CN101570008A (en) * 2009-06-05 2009-11-04 广东工业大学 Flexible fixture device and operation method thereof
CN203109668U (en) * 2013-02-04 2013-08-07 宁波诺丁汉大学 Multi-point flexible clamp

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753309A (en) * 2014-01-24 2014-04-30 山东天岳先进材料科技有限公司 Clamping tool for irregular object
CN103753309B (en) * 2014-01-24 2016-05-11 山东天岳先进材料科技有限公司 Irregularly shaped object clamping tooling
CN104708552A (en) * 2015-02-10 2015-06-17 吴中区甪直渡岘工艺品厂 Artware processing equipment
CN105149984A (en) * 2015-09-01 2015-12-16 上海大学 Clamp device
CN105149984B (en) * 2015-09-01 2017-12-05 上海大学 A kind of grip device
CN105945595A (en) * 2016-05-18 2016-09-21 常州市金海基机械制造有限公司 Clamp used for machining of mechanical parts
CN106392934A (en) * 2016-10-26 2017-02-15 惠州市黑娜尔科技有限公司 Clamp
CN106392934B (en) * 2016-10-26 2018-06-08 苏培成 Fixture
CN106624560A (en) * 2016-12-29 2017-05-10 重庆王滔机械制造有限公司 Welding fixing device
CN109732503A (en) * 2018-12-20 2019-05-10 安徽米科智能科技有限公司 A kind of bracket distance-variable type fast uniform clamping device
CN111360564A (en) * 2020-04-22 2020-07-03 周江宏 Fool-proof device for numerical control machine tool workpiece processing safety

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