CN104084826B - Flexible fixture based on magnetorheological clay - Google Patents
Flexible fixture based on magnetorheological clay Download PDFInfo
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- CN104084826B CN104084826B CN201410308168.9A CN201410308168A CN104084826B CN 104084826 B CN104084826 B CN 104084826B CN 201410308168 A CN201410308168 A CN 201410308168A CN 104084826 B CN104084826 B CN 104084826B
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- magnetorheological clay
- cramping body
- magnetorheological
- clay
- flexible fixture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
- B23Q3/154—Stationary devices
- B23Q3/1543—Stationary devices using electromagnets
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soft Magnetic Materials (AREA)
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Abstract
A kind of flexible fixture based on magnetorheological clay, including clamping fixture seat, fixed clamp body, movable cramping body it is respectively equipped with on this clamping fixture seat, it is respectively equipped with iron core on described fixed clamp body, movable cramping body, two iron cores are positioned on same axial line, difference coiling magnet exciting coil on each iron core, each magnet exciting coil is connected with DC source by wire respectively, the end in opposite directions of described two iron cores fixes a grip block respectively, the clamping face of two grip blocks is provided with groove corresponding in opposite directions, filling magnetorheological clay in two grooves respectively, the opening of each groove is sealed by a sheet rubber respectively.Its response rapidly, controls simple, and good stability, and reliability is high.
Description
Technical field
The present invention relates to field of fixtures, particularly relate to a kind of flexible fixture based on magnetorheological clay.
Background technology
After 20 century 70s, along with NC lathe and machining center commonly using aborning, one of flexibility main development direction becoming modern manufacturing industry, continuing to continue to use special fixture and realize real flexibility by limiting manufacture system, flexible fixture arises at the historic moment.The flexible fixture used at present mainly has: phase transformation and pseudo-phase-change material formula flexible fixture, modularized program control formula fixture, bionical grab clip fixture, adjustable fixture, modular fixture and built-up jig etc..These clamp structures above-mentioned are the most complicated, high cost, and flexible limited, it is not easy to popularizing aborning, can not reach the most far away the standard of engineer applied, many problems are to be resolved.Along with the appearance of intellectual material, the development of flexible fixture occurs in that new direction.Magnetorheological materials is a kind of intellectual material that can be affected and change its particular characteristic by external magnetic field, and the most representational magnetorheological materials is magnetic flow liquid, and current magnetic flow liquid has been successfully applied in engineering practice manufacture flexible fixture.But magnetic flow liquid but also exists the feature of sedimentation stability difference, thus limit the range of magnetic flow liquid.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that a kind of flexible fixture based on magnetorheological clay, its response rapidly, controls simple, and good stability, and reliability is high.
The object of the present invention is achieved like this:
A kind of flexible fixture based on magnetorheological clay, including clamping fixture seat, fixed clamp body it is respectively equipped with on this clamping fixture seat, movable cramping body, described fixed clamp body, it is respectively equipped with a ferrum core on movable cramping body, two iron cores are positioned on same axial line, difference coiling magnet exciting coil on each iron core, each magnet exciting coil is connected with DC source by wire respectively, the end in opposite directions of described two iron cores fixes a grip block respectively, the clamping face of two grip blocks is provided with groove corresponding in opposite directions, magnetorheological clay is filled respectively in two grooves, the opening of each groove is sealed by a sheet rubber respectively.
Described magnetorheological clay is mixed with carbonyl iron dust by high molecular polymer matrix, and the mass percent of described high molecular polymer matrix is 20%, and the mass percent of carbonyl iron dust is 80%.
The degree of depth of described two grooves is 5～10mm.
The thickness of described two sheet rubbers is 0.5～1.5mm；
Described two grip blocks are made up of non-magnet_conductible material.
The material of described grip block is aluminium alloy.
Described fixed clamp body is weldingly fixed on clamping fixture seat, described movable cramping body is snug fit at the chute that clamping fixture seat is provided with, the bottom of movable cramping body is provided with screwed hole, a screw rod is axially positioned on described clamping fixture seat, this screw rod and the screwed hole threaded engagement of movable cramping body, form leading screw and nut mechanism.
One end of described screw rod is provided with handle.
Described two grip blocks are adhesively fixed on corresponding iron core respectively.
Owing to have employed such scheme, fixed clamp body, movable cramping body being respectively equipped with an iron core, holding in opposite directions of two iron cores fixes one respectively for clamping the grip block of workpiece.The clamping face of two grip blocks is provided with groove corresponding in opposite directions, fills magnetorheological clay in two grooves respectively, and the opening of each groove is sealed by a sheet rubber respectively, and the outer face of two sheet rubbers clamps workpiece with absorption surface respectively.On each iron core, the magnet exciting coil of coiling is connected with DC source by wire respectively, the size of regulation DC source output electric current controls the magnetic field at iron core, thus change magnetorheological clay and act on the normal force of flexible rubber sheet, make flexible rubber sheet be close to workpiece, form clamping.Magnetorheological clay have employed full-bodied high molecular polymer matrix and replaces the liquid matrix of magnetic flow liquid, the problem overcoming its sedimentation stability difference, reliability is high, and magnetorheological clay has magnetic flow liquid equally and controls the advantages such as easy, response is rapid under the action of a magnetic field.Consecutive variations is there is in the magnetic control mechanical characteristic of magnetorheological clay under the action of a magnetic field, magnetic field size can be changed by the size of regulation electric current, the clamping of adaptive realization workpiece irregular to various geometries, can also be to low rigidity, the workpiece that in clamping process, profile and size have trace to change realizes flexible clamping.During use, first contact at the beginning of regulation activity cramping body makes workpiece and two sheet rubbers, the size regulating DC source output electric current again controls the magnetic field at iron core, thus changes magnetorheological clay and act on the normal force of flexible rubber sheet, makes flexible rubber sheet clamp workpiece.This flexible gripper structures, simple to operate, it is easy to safeguard.
Two grip blocks are made up of non-magnet_conductible material.When magnet exciting coil is energized, two grip blocks will not be magnetized generation magnetic field, therefore, be applied on magnetorheological clay magnetic field intensity be easier to control, the reliability of clamping is higher.Fixed clamp body is weldingly fixed on clamping fixture seat, movable cramping body is snug fit at the chute that clamping fixture seat is provided with, and the bottom of movable cramping body is provided with screwed hole, and described clamping fixture seat axially positions a screw rod, this screw rod and the screwed hole threaded engagement of movable cramping body, form leading screw and nut mechanism.The screw rod of rotary screw rod nut body, can realize the linear mobile of movable cramping body.
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In accompanying drawing, 1 is magnetorheological clay, and 2 is sheet rubber, and 3 is magnet exciting coil, and 4 is iron core, and 5 is grip block, and 6 is clamping fixture seat, and 7 is DC source, and 8 is screw rod, and 9 is fixed clamp body, and 10 is movable cramping body, and 11 is chute, and 12 is handle.
Detailed description of the invention
See Fig. 1, a kind of embodiment for flexible fixture based on magnetorheological clay, including clamping fixture seat 6, fixed clamp body 9, movable cramping body 10 it is respectively equipped with on this clamping fixture seat 6, described fixed clamp body 9 is weldingly fixed on clamping fixture seat 6, described movable cramping body 10 is snug fit at the chute 11 that clamping fixture seat 6 is provided with, the bottom of movable cramping body 10 is provided with screwed hole, a screw rod 8 is axially positioned on described clamping fixture seat 6, in the present embodiment, this screw rod 8 is supported in clamping fixture seat 6 by thrust bearing, is provided with the cavity for installing screw rod 8 in clamping fixture seat 6.This screw rod 8 and the screwed hole threaded engagement of movable cramping body 10, form leading screw and nut mechanism.Further, one end of described screw rod 8 is provided with handle 12, it is simple to rotate screw rod 8, makes movable cramping body 10 move towards fixed clamp body 9.
Being respectively equipped with an iron core 4 on described fixed clamp body 9, movable cramping body 10, two iron cores 4 are rectangular-shaped, and two iron cores 4 are positioned on same axial line, it is simple to clamping workpiece.Difference coiling magnet exciting coil 3 on each iron core 4, each magnet exciting coil 3 is connected with DC source 7 by wire respectively, the end in opposite directions of described two iron cores 4 fixes a grip block 5 respectively, in the present embodiment, described two grip blocks 5 are adhesively fixed on corresponding iron core 4 respectively, and fixing need not of bonding way damages grip block 5 and iron core 4.Described two grip blocks 5 are made up of non-magnet_conductible material.Further, the material of described grip block 5 is aluminium alloy.The clamping face of two grip blocks 5 is provided with groove corresponding in opposite directions, and the degree of depth of described two grooves is 5～10mm.Filling magnetorheological clay 1 in two grooves respectively, described magnetorheological clay 1 is mixed with carbonyl iron dust by high molecular polymer matrix, and the mass percent of described high molecular polymer matrix is 20%, and the mass percent of carbonyl iron dust is 80%.In the present embodiment, high molecular polymer matrix uses polyurethane.The opening of each groove is sealed by a sheet rubber 2 respectively.The thickness of described two sheet rubbers 2 is 0.5～1.5mm.
The present invention is not limited solely to above-described embodiment, carries out the technical scheme of few modifications in the case of without departing substantially from technical solution of the present invention spirit, should fall into protection scope of the present invention.
Claims (7)
- null1. a flexible fixture based on magnetorheological clay，Including clamping fixture seat (6)，Fixed clamp body (9) it is respectively equipped with on this clamping fixture seat (6)、Movable cramping body (10)，It is characterized in that: described fixed clamp body (9)、It is respectively equipped with an iron core (4) on movable cramping body (10)，Two iron cores (4) are positioned on same axial line，The upper coiling magnet exciting coil (3) respectively of each iron core (4)，Each magnet exciting coil (3) is connected with DC source (7) by wire respectively，The end in opposite directions of described two iron cores (4) fixes a grip block (5) respectively，The clamping face of two grip blocks (5) is provided with groove corresponding in opposite directions，Magnetorheological clay (1) is filled respectively in two grooves，The opening of each groove is sealed by a sheet rubber (2) respectively，Described magnetorheological clay (1) is mixed with carbonyl iron dust by high molecular polymer matrix，The mass percent of described high molecular polymer matrix is 20%，The mass percent of carbonyl iron dust is 80%，Described fixed clamp body (9) is weldingly fixed on clamping fixture seat (6)，Described movable cramping body (10) is snug fit at the chute (11) that clamping fixture seat (6) is provided with，The bottom of movable cramping body (10) is provided with screwed hole，The upper axially location one screw rod (8) of described clamping fixture seat (6)，This screw rod (8) and the screwed hole threaded engagement of movable cramping body (10)，Form leading screw and nut mechanism.
- Flexible fixture based on magnetorheological clay the most according to claim 1, it is characterised in that: the degree of depth of described two grooves is 5～10mm.
- Flexible fixture based on magnetorheological clay the most according to claim 1, it is characterised in that: the thickness of described two sheet rubbers (2) is 0.5～1.5mm.
- Flexible fixture based on magnetorheological clay the most according to claim 1, it is characterised in that: described two grip blocks (5) are made up of non-magnet_conductible material.
- Flexible fixture based on magnetorheological clay the most according to claim 4, it is characterised in that: the material of described grip block (5) is aluminium alloy.
- Flexible fixture based on magnetorheological clay the most according to claim 1, it is characterised in that: one end of described screw rod (8) is provided with handle (12).
- Flexible fixture based on magnetorheological clay the most according to claim 1, it is characterised in that: described two grip blocks (5) are adhesively fixed on corresponding iron core (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308168.9A CN104084826B (en) | 2014-07-01 | 2014-07-01 | Flexible fixture based on magnetorheological clay |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308168.9A CN104084826B (en) | 2014-07-01 | 2014-07-01 | Flexible fixture based on magnetorheological clay |
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| Publication Number | Publication Date |
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| CN104084826A CN104084826A (en) | 2014-10-08 |
| CN104084826B true CN104084826B (en) | 2016-08-17 |
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| CN104625822B (en) * | 2015-01-30 | 2016-10-26 | 西北工业大学 | Flexible supporting device |
| CN104772727B (en) * | 2015-04-24 | 2017-05-17 | 严瑾 | Rigid-flexible blended clamp |
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| CN104907957B (en) * | 2015-05-25 | 2016-06-01 | 中南大学 | Based on the coaxial-type opto-electronic device coupling fixture of magnetic converting technique |
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| CN107322347B (en) * | 2017-09-05 | 2023-04-07 | 河北工业大学 | Novel multifunctional flexible clamp and use method thereof |
| CN108032022A (en) * | 2017-12-06 | 2018-05-15 | 叶松 | A kind of clamp device and fastening method |
| CN108529235B (en) * | 2018-04-17 | 2020-02-04 | 京东方科技集团股份有限公司 | Conveying device |
| CN108637747A (en) * | 2018-07-31 | 2018-10-12 | 六安市新突破机械设备有限公司 | A kind of electromagnetic sucker type frock clamp and technique |
| CN109127632B (en) * | 2018-09-19 | 2023-12-22 | 中国水稻研究所 | Multipurpose fume chamber |
| CN109664219A (en) * | 2018-12-17 | 2019-04-23 | 中国航发动力股份有限公司 | A kind of type surface self-adaption fixture and its application method |
| CN110588087B (en) * | 2019-09-25 | 2021-06-01 | 东北大学 | Fiber metal hybrid composite material for filling MRE interlayer and preparation method thereof |
| CN111067689A (en) * | 2020-01-21 | 2020-04-28 | 羽源洋(宁波)科技有限公司 | Instrument and method for fixing bone fracture part by utilizing magnetic fluid in orthopedics department |
| CN114871960A (en) * | 2022-04-18 | 2022-08-09 | 同济大学 | Multifunctional flexible damping element based on magnetorheological material |
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| CN1543388A (en) * | 2001-07-26 | 2004-11-03 | 施托布利技术系统公司 | Magnetic clamping device and method for detecting and controlling an operating state of a magnetic clamping device |
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| JPS5894948A (en) * | 1981-12-01 | 1983-06-06 | Fuji Jikou Kk | Electromagnetic chuck for irregular surface |
| JP3904663B2 (en) * | 1997-04-22 | 2007-04-11 | カネテック株式会社 | Magnetic adsorption holding device |
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| CN1543388A (en) * | 2001-07-26 | 2004-11-03 | 施托布利技术系统公司 | Magnetic clamping device and method for detecting and controlling an operating state of a magnetic clamping device |
| CN1490127A (en) * | 2002-10-18 | 2004-04-21 | 中国科学技术大学 | Flexible magnet rheological tongs |
| KR20120001109U (en) * | 2010-08-09 | 2012-02-17 | 웬-흐수안 치앙 | Magnetic vise |
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| CN104084826A (en) | 2014-10-08 |
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