CN207077229U - A kind of novel and multifunctional flexible fixture - Google Patents

Abstract

It the utility model is related to a kind of novel and multifunctional flexible fixture, it is characterised in that the clearing and retrieving groove and clamp base that the fixture recycles including the positioning clamping slot for positioning Clamp blocks, for cutting swarf cleaning and magnetic rheological liquid；The clamp base is used to positioning clamping slot and clearing and retrieving groove be fixedly mounted, and realizes being fixedly connected for fixture and all kinds of platform of machine tool, including connecting bottom board, electromagnet and permanent magnet；The connecting bottom board is the platy structure that a bottom surface is smooth, upper surface middle part is raised, it is arranged symmetrically at left and right sides of connecting bottom board for realizing the U-lag that is fixedly connected of the fixture with all kinds of platform of machine tool, arrangement is some for stationary positioned clamping slot and the connection through hole of clearing and retrieving groove in the middle part of connecting bottom board, connecting bottom board upper surface it is central raised on along the long cross direction of connecting bottom board be evenly arranged a number of groove, the connection groove for arranging electromagnet cable is offered between a number of groove.

Description

A kind of novel and multifunctional flexible fixture

Technical field

Field of machining is the utility model is related to, specially a kind of novel and multifunctional flexible fixture and its application method.

Background technology

With high-end manufacturing fast development, multi items, small lot, high accuracy, the process requirements day of complex class part Benefit is vigorous.Therefore, higher requirement is proposed to traditional universal and combined jig：On the one hand, fixture need to have Stronger versatility, Multiple Type specification lathe can be applicable, available for the processing of the various materials such as metal, nonmetallic, realization pair Effective positioning of all kinds of complex parts clamps, to reduce the development and application of special fixture；On the other hand, fixture should possess structure letter The features such as list, simple operation, cheap working service cost, to greatly improve production efficiency while machining accuracy is ensured；This Outside, new specific requirement is had also been proposed to fixture for some particular applications, such as in nonmetallic thin wall complex-curved zero In the process of part, not only need to realize that the real-time effectively positioning to part clamps, and need to provide larger support firm Degree, effectively to suppress part deformation in process, processing is vibrated, and then ensures higher machining accuracy and processing efficiency.

It is domestic for above-mentioned technical problem to meet modern machine fixture precise treatment, high efficiency, flexibility growth requirement More money multifunction flexible fixtures are have developed outside, such as《Multi-point flexibly air-actuated jaw control system research based on negative-pressure adsorption》(thunder Bright Wei etc., machine-building, 2017 phases of volume 55 632) it is related to a kind of multi-point flexibly air-actuated jaw based on negative-pressure adsorption, it is adopted Realized with the modularization Pneumatic suction cup for being fixedly installed in clamp bottom board and the vacuum suction of part and support are positioned, but use process It is middle need to be according to the own structural characteristics of different parts and processing needs, by changing mounting hole or clamp bottom board adjusting module gas Dynamic sucker mounting arrangement is formed to be supported to the Reasonable Orientation of part, while control system need to control each Pneumatic suction cup realization pair respectively The adsorbent support function of part, operational control is complex, and versatility is relatively poor；Patent document " Universal flexible fixture and its Application method (CN105171479A) " discloses a kind of Universal flexible fixture and its application method, and the fixture is heated by aiding in The phase transformation of low melting point phase-change material, adjustment, fixed and phase-change material in device and radiator cooler control phase-change material cavity Each positioning body and clamping body that cavity coordinates, realize that the positioning to part clamps, but needed during the fixture use for difference Part makes different clamping bodies, while needs assisted heating device and radiator cooler to coordinate, and versatility is poor, working service Cost is higher；Patent document " a kind of flexible fixture (CN105522420A) of the suitable complex-curved positioning and clamping of part " discloses A kind of flexible fixture of suitable complex curved surface parts positioning and clamping, the fixture utilize some angles height being arranged in the middle part of fixture Adjustable eyelid retractor realizes the support complex-curved to part, is realized by the multiple briquettings for being arranged in fixture surrounding to part Clamp, need to adjust each eyelid retractor and briquetting position repeatedly during use, operation is relatively complicated, it is difficult to realize to the effective of part Positioning clamps, and support stiffness is limited；Patent document " a kind of flexible fixture (CN105690155A) " is related to a kind of Pneumatic flexible Fixture, the fixture realize that the positioning to part clamps using the air bag of pressure controllable, and versatility is higher, but needs to lead to during use Cross wireless control system and adjust each gasbag pressure in real time, structure control is relative complex, considers that processing environment influences, air bag easily occurs Breakage, working service cost is higher, while is influenceed by gas compressive characteristics, it is difficult to and realization is accurately positioned clamping to part, And support stiffness is not good enough.

In summary, existing multifunction flexible fixture generally existing it is complicated, operation inconvenience, working service cost compared with High, many deficiencies such as versatility is not good enough.Therefore, need badly a kind of simple in construction, simple operation of research and development, working service cost it is cheap, Possess the novel and multifunctional flexible fixture of stronger versatility, applicable Multiple Type specification lathe, metal, nonmetallic etc. can be used for Various material processing, can be achieved effective support to all kinds of complex parts including nonmetallic thin wall complex curved surface parts Positioning clamps, to greatly improve production efficiency while machining accuracy is ensured.

Utility model content

In view of the shortcomings of the prior art, the technical problems to be solved in the utility model is：A kind of simple in construction, operation is provided It is convenient, working service cost is cheap, possesses the novel and multifunctional flexible fixture and its application method of stronger versatility.

Technical scheme is used by the utility model solves the technical problem：A kind of novel and multifunctional flexible folder of design Tool, it is characterised in that the fixture is cleared up including the positioning clamping slot for positioning Clamp blocks, for cutting swarf and magnetic flow liquid The clearing and retrieving groove and clamp base that body circulation utilizes；

The clamp base is used to positioning clamping slot and clearing and retrieving groove be fixedly mounted, and realizes fixture and all kinds of platform of machine tool Be fixedly connected, including connecting bottom board, electromagnet and permanent magnet；The connecting bottom board is that a bottom surface is smooth, upper surface middle part is convex The platy structure risen, it is arranged symmetrically at left and right sides of connecting bottom board for realizing being fixedly connected for fixture and all kinds of platform of machine tool U-lag, arrangement is some for stationary positioned clamping slot and the connection through holes of clearing and retrieving groove, connecting bottom board in the middle part of connecting bottom board Upper surface it is central raised on along the long cross direction of connecting bottom board be evenly arranged a number of groove, a number of groove it Between offer connection groove for arranging electromagnet cable；Each inside grooves are inlaid with hollow electromagnetic iron, the electromagnetism The shape specification of iron and the shape specification of groove match；The permanent magnet uses axial charging form, with identical magnetic field side It is installed on to nesting inside hollow electromagnetic iron；A number of electromagnet and permanent magnet form an excitation array；

The positioning clamping slot is installed on the central raised top of clamp base, including positioning clamps cell body and two dimension is moved Dynamic alignment system, the positioning clamp cell body be a size be engaged with connecting bottom board upper surface middle part projection without lid housing, The bottom that positioning clamps cell body opens up some tapped blind holes, will be positioned by the tapped blind hole and connection through hole and clamps cell body rigidity The raised surface of connecting bottom board upper surface middle part is fixed on, positioning clamps cell body and opened up with the side that clearing and retrieving groove is in contact There is mobile window；Two-dimensional movement alignment system is fixedly mounted in the inside that cell body is clamped in positioning, passes through two-dimensional movement alignment system Complete the horizontal and vertical positioning of parts to be processed；

The clearing and retrieving groove is installed on the top of clamp base and the side of adjacent positioning clamping slot, including clearing and retrieving Cell body, filter screen, the pump housing and pipeline；The clearing and retrieving cell body opens up some tapped blind holes, passed through for one without lid housing, its bottom The tapped blind hole and connection through hole clearing and retrieving cell body is rigidly secured on connecting bottom board, the one side of clearing and retrieving cell body with The mobile window side that positioning clamps cell body is in sealing contact, and opens up one in the side of the clearing and retrieving cell body and clamped with positioning The corresponding window of the mobile window of cell body；Filtering groove, institute are equipped with the inside of the side of the left and right of clearing and retrieving cell body two State filter screen to be intercalated among two filtering grooves, clearing and retrieving cell body has been divided into window area and without window region；It is described The pump housing is fixedly installed in the without window region of clearing and retrieving cell body, and described pipeline one end is connected with the pump housing, and the other end passes through cleaning Recovery cell body clamps cell body with positioning and is connected.

A kind of application method of above-mentioned multifunction flexible fixture, it is the step of this method：Fixture is fixedly installed in lathe Platform, be loaded part when, electromagnet be powered, by controlling direction and the size of electrical current, make electromagnet magnetic field cancellation permanent magnetism Body magnetic field, excitation array magnetic field in clamp base is removed, adjustment positions four location-plates in clamping slot, coordinates positioning to clamp cell body Bottom surface, by part Primary Location, four positioning Board positions are fixed using dowelled spanner, realize that part is accurately positioned；

After the completion for the treatment of part positioning, according to parts character and processing needs, clamping mode is chosen, there are three kinds of clamping modes： The first, is initially switched off electromagnet power supply, and the clamping of parts to be processed is realized using magnetic field of permanent magnet in excitation array；Second, First into positioning clamping slot, injection meets that part clamps the magnetic rheological liquid of demand, and then tripping magnet power supply, utilizes excitation The clamping of parts to be processed is realized in magnetic field of permanent magnet control magnetic rheological liquid phase transformation in array；The third, first to positioning clamping slot Middle injection meets that part clamps the magnetic rheological liquid of demand, then by controlling each unit electromagnet current in excitation array in real time Direction size, dynamic regulation excitation array entirety or local magnetic field strength, and then control magnetic rheological liquid degree of transformation are realized To part each several part clamping force and the dynamic regulation of support force in process；

After part completion of processing, electromagnet is powered, and by controlling the direction size of electrical current, supports electromagnet magnetic field Disappear magnetic field of permanent magnet, removes excitation array magnetic field, is being cleared up under the pump housing effect in clearing and retrieving groove using magnetic rheological liquid Circulated between accumulator tank and positioning clamping slot, cutting swarf is cleared up to clearing and retrieving groove, realizes effective cleaning of cutting swarf.

Compared with prior art, the beneficial effects of the utility model are：

(1) the novel and multifunctional flexible fixture of the utility model has stronger versatility, can be applicable Multiple Type specification machine Bed, available for the processing of the various materials such as metal, nonmetallic, realize that effective positioning to all kinds of complex parts clamps：This practicality Connecting bottom board both sides are respectively arranged symmetrically two U-lags in novel clamp base, be bolted achievable fixture with it is existing each Class platform of machine tool is fixedly connected；Four location-plates in the utility model positioning clamping slot can transversely guide rail and longitudinal sliding block Move freely, and realize that position is fixed using dowelled spanner, coordinate positioning to clamp cell body bottom surface, can be achieved to all kinds of complicated zero Effective positioning of part；Embedded electromagnet and permanent magnet in the utility model clamp base, form an excitation array, and can be fixed Magnetic rheological liquid is introduced in the clamping slot of position, by adjusting excitation array magnetic field intensity, controls magnetic rheological liquid degree of transformation, can be real Now to effective clamping of various types of materials part；In addition, being directed to magnetic conduction class material parts, magnetic caused by excitation array can be directly utilized Realize effective clamping of parts to be processed in field.

(2) the novel and multifunctional flexible fixture of the utility model is coordinated magnetorheological using electromagnetism by the way of permanent magnetism is combined Liquid phase-change medium, while the energy is saved, it can not only realize in process to the real-time effectively fixed of all kinds of complex parts Position clamps, and can dynamically adjust part support stiffness, greatly improves machining accuracy, it is complicated that satisfaction includes nonmetallic thin wall The process requirements of all kinds of complex parts including curved surface part：The utility model, which is located in clamp base, to be used to produce encouraging for magnetic field Magnetic array is using electromagnetism by the way of permanent magnetism is combined, i.e., each unit is by nested electromagnet and permanent magnet in excitation array Form, and each unit magnetic direction intensity can be by adjusting electromagnet current direction size dynamic regulation, therefore, can be according to adding Work needs, and dynamic adjusts excitation array entirety or local magnetic field strength, and then controls magnetic rheological liquid degree of transformation, due to magnetic current Become liquid effects force isotropy, therefore the dynamic regulation in process to part each several part clamping force and support force can be realized, Effectively suppress part deformation in process, processing vibration, ensure machining accuracy；In addition, it is loaded less demanding zero for part Part, can use positioning stage electromagnet energization counteracting magnetic field of permanent magnet unloads magnetic mode, and the power-off of clamping phase electromagnet is using forever The mode of operation that magnets magnetic fields clamp, simple to operate, efficient energy-saving.

(3) the novel and multifunctional flexible fixture of the utility model has clearing and retrieving device, can be achieved to the effective of cutting swarf Cleaning and the efficient utilization of magnetic rheological liquid, have stronger ease for use and economy：The utility model clearing and retrieving cell body is with determining Position clamps cell body connection, and clearing and retrieving cell body bottom surface clamps cell body bottom surface less than positioning, using magnetic rheological liquid Clamp blocks During, under magnetic fields caused by excitation array, the magnetic rheological liquid presentation solid-state in positioning clamping slot, and clearing and retrieving Magnetic rheological liquid in groove still keeps liquid, therefore, will be magnetorheological in clearing and retrieving groove using the pump housing in clearing and retrieving groove Liquid is supplemented to positioning clamping slot through pipeline, properly increases liquid level in positioning clamping slot and, to meet that part clamps needs, carries Rise magnetic rheological liquid utilization rate；In addition, after process finishing, using magnetic rheological liquid under the pump housing effect in clearing and retrieving groove Circulated between clearing and retrieving groove and positioning clamping slot, cutting swarf is cleared up to clearing and retrieving groove, realizes the effective of cutting swarf Cleaning.

(4) the novel and multifunctional flexible gripper structures of the utility model are simple, simple operation, working service cost are cheap, Ensure that while machining accuracy production efficiency can be greatly improved：The utility model is only by clamp base, positioning clamping slot and cleaning Accumulator tank is formed, simple in construction, using the location-plate and dowelled spanner that are flexibly moved in clamping slot is positioned, coordinates positioning clamping slot Body bottom surface, the quick and precisely positioning of part can be achieved, own characteristic for part and be loaded needs, using being adopted in clamp base The excitation array of mode is combined with electromagnetism with permanent magnetism, coordinates magnetic rheological liquid, can flexibly choose a variety of clamping modes, meet Clamping efficiency is improved while machining accuracy, and the utility model has clearing and retrieving device, and the effective clear of cutting swarf can be achieved Reason recycles with magnetic rheological liquid, and simple and convenient, working service cost is cheap.

Brief description of the drawings

Accompanying drawing 1 is a kind of general structure schematic diagram of embodiment of the novel and multifunctional flexible fixture of the utility model；

Accompanying drawing 2 shows for a kind of plan structure of the clamp base 1 of embodiment of the novel and multifunctional flexible fixture of the utility model It is intended to；

Accompanying drawing 3 shows for a kind of main view section of the clamp base 1 of embodiment of the novel and multifunctional flexible fixture of the utility model It is intended to；

Accompanying drawing 4 is a kind of plan structure of the positioning clamping slot 2 of embodiment of the novel and multifunctional flexible fixture of the utility model Schematic diagram；

Accompanying drawing 5 is determined for a kind of removing after positioning clamps cell body 21 for embodiment of the novel and multifunctional flexible fixture of the utility model Structural representation inside the clamping slot of position；

Accompanying drawing 6 is a kind of stereochemical structure of the clearing and retrieving groove 3 of embodiment of the novel and multifunctional flexible fixture of the utility model Schematic diagram；

Accompanying drawing 7 is a kind of operation principle schematic diagram of embodiment of the novel and multifunctional flexible fixture of the utility model；

In figure, 1 clamp base, 2 positioning clamping slots, 3, clearing and retrieving groove, 11 connecting bottom boards, 12 electromagnet, 13 permanent magnets, 21 positioning clamp cell body, 22 cross slide ways, 23 transverse sliders, 24 transverse slats, 25 longitudinal rails, 26 longitudinal sliding blocks, 27 location-plates, 28 Dowelled spanner, 31 clearing and retrieving cell bodies, 32 filter screens, 33 pump housings, 34 pipelines, 111 connection through holes, 112 grooves, 113 connection grooves, 114U shape grooves.

Embodiment

The utility model is described in detail with reference to embodiment and its accompanying drawing.Embodiment is with technology described in the utility model The specific implementation carried out premised on scheme, give detailed embodiment and process.But the right of the present utility model application will Protection domain is asked to be not limited to following embodiment descriptions.

The utility model design novel and multifunctional flexible fixture (abbreviation fixture, referring to Fig. 1-7) include clamp base 1, Position clamping slot 2 and clearing and retrieving groove 3；

The clamp base 1 (referring to Fig. 2-3) is used to positioning clamping slot 2 and clearing and retrieving groove 3 be fixedly mounted, and realizes fixture With being fixedly connected for all kinds of platform of machine tool, including connecting bottom board 11, electromagnet 12 and permanent magnet 13；The connecting bottom board is a bottom The platy structure that face is smooth, upper surface middle part is raised, it has been arranged symmetrically at left and right sides of connecting bottom board for being bolted The U-lag 114 that is fixedly connected of the fixture with all kinds of platform of machine tool is realized, arranges that some stationary positioneds that are used for are pressed from both sides in the middle part of connecting bottom board The connection through hole 111 of tight groove 2 and clearing and retrieving groove 3, is connected through a screw thread and realizes clamp base 1 and positioning clamping slot 2 and cleaning Accumulator tank 3 is rigidly connected, connecting bottom board upper surface it is central raised on along the long cross direction of connecting bottom board be evenly arranged some numbers The groove 112 of amount, the connection groove 113 for arranging electromagnet cable is offered between a number of groove；It is each recessed Hollow electromagnetic iron 12 is inlaid with inside groove, the shape specification of the electromagnet and the shape specification of groove match, Neng Goutong Cross the change sense of current, size adjustment magnetic direction, intensity；The permanent magnet 13 uses axial charging form, with identical magnetic Field direction nesting is installed on inside hollow electromagnetic iron 12, and the height of permanent magnet 13 is identical with the height of electromagnet；A number of Electromagnet and permanent magnet form an excitation array；

The positioning clamping slot 2 is installed on the central raised top of clamp base 1 (referring to Fig. 4-5), for realization pair The positioning of all kinds of complex parts clamps, including positioning clamps 24, two cell body 21, location-plate 27, dowelled spanner 28, transverse slat transverse directions Guide rail 22 and two longitudinal rails 25；It is a size and the upper surface middle part projection phase of connecting bottom board 11 that the positioning, which clamps cell body 21, What is coordinated opens up some tapped blind holes, is connected through a screw thread the company of being rigidly secured to without lid housing, the bottom of positioning clamping cell body 21 The raised surface of the upper surface middle part of bottom plate 11 is connect, positioning clamps cell body 21 and offered with the side that clearing and retrieving groove 3 is in contact Mobile window, the discharge circulated with cutting swarf for magnetic rheological liquid；Described two cross slide ways 22 clamp along positioning The width of cell body 21, which is symmetrically arranged in positioning and clamped, makes it parallel with the positioning clamping length direction of cell body 21 inside cell body 21, and It is connected through a screw thread and is rigidly secured to positioning clamping cell body 21 bottom；Two are respectively and fixedly provided with each cross slide way 22 laterally to slide Block, the transverse slider 23 coordinates with cross slide way 22 forms prismatic pair, and transverse slider 23 transversely can be moved flexibly guide rail 22； Transverse slat 24 is fixedly connected between two neighboring transverse slider 23 on different cross slide ways, two transverse slats and cross slide way are just Hand over；Two longitudinal rails 25 are fixedly connected with two transverse slats, two longitudinal rails 25 are orthogonal with two cross slide ways 22, make Longitudinal rail 25 transversely can be moved flexibly guide rail 22；Two longitudinal sliding blocks are being fixedly connected with guide rail longitudinally in each 26, the longitudinal sliding block 26 coordinates with longitudinal rail 25 forms prismatic pair, and longitudinal sliding block can flexibly move along longitudinal rail 25； Being rigidly connected on sliding block 26 longitudinally in each has a location-plate 27, and there are the location-plate 27 two orthogonal to be used for what is positioned Datum plane, and two orthogonal datum planes for being used to position are towards the inner side of cross slide way and longitudinal rail, and perpendicular to Positioning clamps the bottom surface of cell body, for realizing the positioning to parts to be processed；It is provided with the location-plate 27 and transverse slat 24 Screwed hole, the lower end of dowelled spanner 28 are a threaded rod, and upper end is easy to the platy structure that it is screwed for one, passes through dowelled spanner Realized in the screwed hole of insertion location-plate 27 and transverse slat 24 location-plate and longitudinal sliding block, longitudinal rail and transverse slat and transverse slider, The fixation of cross slide way, finally realize by cross slide way 22, transverse slider 23, transverse slat 24, longitudinal rail 25, the and of longitudinal sliding block 26 The fixation of location-plate in the two-dimensional movement alignment system that location-plate 27 is formed, parts to be processed is completed by adjusting four location-plates Positioning after, screw the dowelled spanner 28 being engaged with the upper screwed hole of transverse slat 24, make the dowelled spanner lower end compress cross slide way 22, the transverse direction that location-plate can be achieved is fixed, and is screwed the dowelled spanner 28 being engaged with the upper screwed hole of location-plate 27, is pulled the positioning The subordinate tight longitudinal rail 25 of side pressure, the longitudinally fixed of location-plate can be achieved；

The clearing and retrieving groove 3 is installed on the top of clamp base 1 and the side of adjacent positioning clamping slot 2 (referring to Fig. 6), For realizing the efficient cleaning of cutting swarf and recycling for magnetic rheological liquid, including clearing and retrieving cell body 31, filter screen 32, the pump housing 33 and pipeline 34；The clearing and retrieving cell body 31 is for one without lid housing, and its bottom opens up some tapped blind holes, for passing through screw thread Connection is rigidly secured on connecting bottom board 11, and the one side of clearing and retrieving cell body 31 clamps the mobile window of cell body 21 with positioning Side is in sealing contact, and it is relative to open up in the side of the clearing and retrieving cell body 31 mobile window that cell body 21 is clamped with positioning The window answered, the discharge circulated with cutting swarf for magnetic rheological liquid；In the side of the left and right of clearing and retrieving cell body two Inner side is equipped with filtering groove, and the filter screen 32 is intercalated among two filtering grooves, clearing and retrieving cell body 31 has been divided into Window area and without window region, filter screen are used to residue in the cutting swarf in magnetic rheological liquid in filtration process, prevent from cutting Swarf enters without window region；The pump housing 33 is fixedly installed in the without window region of clearing and retrieving cell body 31, for that will clear up It is fixed that pipeline 34 of the magnetic rheological liquid through connection clearing and retrieving cell body 31 and positioning clamping cell body 21 in recovery cell body 31 is pumped to Position clamps cell body 21, realizes circulating for magnetic rheological liquid.

The clearing and retrieving cell body of the present utility model that is further characterized by connects with positioning clamping cell body, and clearing and retrieving groove Body bottom surface clamps cell body bottom surface less than positioning, during magnetic rheological liquid Clamp blocks, in magnetic field caused by excitation array Under effect, solid-state is presented in the magnetic rheological liquid positioned in clamping slot, and the magnetic rheological liquid in clearing and retrieving groove still keeps liquid. Therefore, magnetic rheological liquid in clearing and retrieving groove is supplemented to positioning clamping slot through pipeline using the pump housing in clearing and retrieving groove, Properly increase liquid level in positioning clamping slot and, to meet that part clamps needs, lift magnetic rheological liquid utilization rate.In addition, processing After end, followed under the pump housing effect in clearing and retrieving groove using magnetic rheological liquid between clearing and retrieving groove and positioning clamping slot Circulation is moved, and cutting swarf is cleared up to clearing and retrieving groove, realizes effective cleaning of cutting swarf.

It is of the present utility model that to be further characterized by the electromagnet be hollow cylindrical.

The clearing and retrieving cell body 31 and positioning clamping cell body 21 of the present utility model of being further characterized by is rectangular Shape.

Pipeline 34 should be arranged on clearing and retrieving cell body 31 as far as possible in the utility model and positioning clamps 21 top position of cell body Put, the position that pipeline should be as far as possible positioned at mobile window opposite or away from mobile window in the entrance location that positioning is clamped on cell body 21 Put.As long as the shape of positioning clamping slot 2 and clearing and retrieving groove 3 disclosure satisfy that the flowing of magnetic rheological liquid and the discharge of cutting swarf are wanted Ask, and position the sufficient space that installation two-dimensional movement alignment system can be provided in clamping slot；Position the stream on clamping slot Dynamic window, magnetic rheological liquid solidifies under the influence of a magnetic field during clamping, mobile window closing, and magnetic field removes during discharge opeing, magnetorheological Liquid is changed into liquid, mobile window connection.

Four location-plates 27 of two-dimensional movement alignment system can transversely guide rail 22 and longitudinal rail in the utility model Move freely, and realize that position is fixed using dowelled spanner 28, coordinate positioning to clamp the bottom surface of cell body 21, can be achieved to all kinds of complexity The quick and precisely positioning of part.

The utility model realizes effective clamping to the various material complex parts such as metal, nonmetallic using magnetic rheological liquid Support.Magnetic rheological liquid can be converted to moment under extraneous magnetic fields from Newtonian liquid to be consolidated with highly viscous toughness class Body, and possess powerful anti-shear ability, and can change and real-time, tunable with external magnetic field, after external magnetic field removes, magnetic current Become liquid moment performance Newtonian fluid property, and change rapid reversible.Parts to be processed in clamping slot 2 is positioned to complete after positioning, Into positioning clamping slot 2, injection magnetic rheological liquid makes its cover parts to be processed, by adjusting in clamp base 1 by electromagnet and The magnetic field intensity of permanent magnet excitation array, solidifies magnetic rheological liquid, due to magnetic rheological liquid effect force isotropy (ginseng See Fig. 7), therefore magnetic rheological liquid can be utilized to realize parts to be processed is clamped while larger part support stiffness is provided, effectively Suppress part deformation in process, processing vibration, ensure machining accuracy.In addition, complete part for magnetic conduction class material parts Positioning after, the clamping of parts to be processed can be directly realized using magnetic field caused by excitation array in clamp base 1, such as conventional machine Bed magnechuck, directly part is adsorbed using magnetic field and fixed.

It is used to produce the side that the excitation array in magnetic field uses electromagnetism to be combined with permanent magnetism in clamp base 1 of the present utility model Each unit is formed by the electromagnet and permanent magnet of nesting in formula, i.e. excitation array, and each unit magnetic direction intensity By adjusting electromagnet current direction size dynamic regulation, therefore, can according to processing needs, dynamic adjust excitation array it is overall or Local magnetic field strength, and then magnetic rheological liquid degree of transformation is controlled, realize in process to part each several part clamping force and branch The dynamic regulation of support force.In addition, for the less demanding part that is partly loaded, positioning stage electromagnet can be used to be powered and offset permanent magnetism Unload magnetic mode, the mode of operation that the power-off of clamping phase electromagnet is clamped using magnetic field of permanent magnet, simple to operate, energy-conservation in body magnetic field Efficiently.

The application method of the novel and multifunctional flexible fixture of the utility model is：Fixture is fixedly installed in platform of machine tool (ginseng See Fig. 7), be loaded part when, electromagnet be powered, by controlling direction and the size of electrical current, make electromagnet magnetic field cancellation forever Magnets magnetic fields, excitation array magnetic field in clamp base is removed, adjustment positions four location-plates 27 in clamping slot 2, coordinates locating clip The tight bottom surface of cell body 21, by part Primary Location, four positions of location-plate 27 are fixed using dowelled spanner 28, realize that part is accurately fixed Position.After the completion for the treatment of part positioning, clamping mode can be chosen according to parts character and processing needs：It is less demanding for being loaded Magnetic conductive material part, tripping magnet power supply, the clamping of parts to be processed is realized using magnetic field of permanent magnet in excitation array；It is right In the less demanding non-permeable material part that is loaded, the magnetic flow liquid for meeting that part clamps demand is injected into positioning clamping slot Body, tripping magnet power supply, parts to be processed is realized using magnetic field of permanent magnet control magnetic rheological liquid phase transformation in excitation array Clamp；For the higher part of requirement that is loaded, treat that injection meets that part clamps the magnetic rheological liquid of demand into positioning clamping slot Afterwards, by controlling the direction size of each unit electromagnet current in excitation array, dynamic regulation excitation array entirety or office in real time Portion's magnetic field intensity, and then magnetic rheological liquid degree of transformation is controlled, realize in process to part each several part clamping force and support The dynamic regulation of power.After part completion of processing, electromagnet is powered, and by controlling the direction size of electrical current, makes electromagnet Magnetic field cancellation magnetic field of permanent magnet, excitation array magnetic field is removed, magnetic rheological liquid is utilized under the pump housing effect in clearing and retrieving groove Circulated between clearing and retrieving groove and positioning clamping slot, cutting swarf is cleared up to clearing and retrieving groove, realizes the effective of cutting swarf Cleaning.The part recited above that require higher that is loaded refers to yielding, low intensity part, such as thin wall, curved surface part.

Embodiment 1

The novel and multifunctional flexible fixture of the present embodiment includes clamp base 1, positioning clamping slot 2 and clearing and retrieving groove 3；It is described Clamp base 1 is used to positioning clamping slot 2 and clearing and retrieving groove 3 be fixedly mounted, and realizes the fixed company of fixture and all kinds of platform of machine tool Connect, mainly include connecting bottom board 11, electromagnet 12 and permanent magnet 13.The connecting bottom board is that a bottom surface is smooth, upper surface middle part Raised platy structure, be arranged symmetrically two U-lags at left and right sides of clamp base, for be bolted realize fixture with All kinds of platform of machine tool are fixedly connected, and arrangement 10 is with positioning clamping slot 2 and the bottom thread of clearing and retrieving groove 3 in the middle part of connecting bottom board The connection through hole that blind hole is engaged, clamp base 1 and positioning clamping slot 2 and clearing and retrieving groove 3 are realized for being connected through a screw thread Be rigidly connected, connecting bottom board upper surface boss is evenly arranged 15 and electromagnet profile phase along the long cross direction of connecting bottom board The cylinder shape groove of matching, groove height is highly identical with electromagnet, for inlaying electromagnet and permanent magnet, 15 electromagnet and Permanent magnet forms an excitation array, and some connection grooves are opened up between each cylinder shape groove, is arranged for electromagnet cable； The electromagnet 12 is hollow cylindrical, is fixedly installed in connecting bottom board cylinder shape groove, can be by changing the sense of current, big Small adjustment magnetic direction, intensity；The permanent magnet 13 is also cylinder, using axial charging form, with identical magnetic direction Nesting is installed on inside hollow cylindrical electromagnet 12, and the height and electromagnet of permanent magnet 13 are highly identical.

The positioning clamping slot 2 is installed on the top of clamp base 1, for realizing that the positioning to all kinds of complex parts clamps, It is main to include positioning and clamp cell body 21 and two-dimensional movement alignment system, the two-dimensional movement alignment system include cross slide way 22, Transverse slider 23, transverse slat 24, longitudinal rail 25, longitudinal sliding block 26, location-plate 27 and dowelled spanner 28.The positioning clamps cell body 21 be a length and width and the upper surface middle part boss identical uncovered cuboid housing of connecting bottom board 11, and its bottom opens up 6 spiral shells Line blind hole, it is rigidly secured to for being connected through a screw thread directly over the upper surface middle part boss of connecting bottom board 11, positioning clamps The surface that is in contact with clearing and retrieving groove 3 of cell body 21 opens up a rectangle mobile window, for magnetic rheological liquid circulate and The discharge of cutting swarf；Two cross slide ways 22 clamp the width of cell body 21 along positioning and are symmetrically arranged in positioning clamping cell body 21 Portion makes it parallel with the positioning clamping length direction of cell body 21, and is connected through a screw thread and is rigidly secured to positioning clamping cell body 21 bottom Portion；The transverse slider 23 coordinates with cross slide way 22 forms a prismatic pair, transversely can flexibly move guide rail 22；In locating clip The tight inside of cell body 21 left and right sides is arranged symmetrically two transverse slats 24, and two both ends of transverse slat 24 are connected through a screw thread and are arranged in respectively Two transverse sliders 23 on different cross slide ways 22 are rigidly connected；Described two longitudinal rails 25 orthogonal with cross slide way 22 It is connected through a screw thread and is fixed on two transverse slats 24 respectively, transversely can be flexibly moved guide rail 22；The longitudinal direction is sliding Block 26 coordinates with longitudinal rail 25 forms a prismatic pair, can flexibly be moved along longitudinal rail 25, and guide rail 25 configures longitudinally in each Two longitudinal sliding blocks 26；Four location-plates 27, which are connected through a screw thread, to be rigidly secured on four longitudinal sliding blocks 26, utilizes positioning Positioning of plate two Planar realizations parallel with cross slide way 22 and longitudinal rail 25 to parts to be processed；The dowelled spanner 28 Lower end is a threaded rod, and upper end is one to be easy to the platy structure that it is screwed, for realize by cross slide way 22, transverse slider 23, Transverse slat 24, longitudinal rail 25, longitudinal sliding block 26 and location-plate 27 form the fixation of location-plate in two-dimensional movement alignment system, pass through After four location-plates of adjustment complete the positioning of parts to be processed, the dowelled spanner 28 being engaged with the upper screwed hole of transverse slat 24 is screwed, Its lower end is set to compress cross slide way 22, the transverse direction that location-plate can be achieved is fixed, and screws what is be engaged with the upper screwed hole of location-plate 27 Dowelled spanner 28, its lower end is compressed longitudinal rail 25, the longitudinally fixed of location-plate can be achieved.

The clearing and retrieving groove 3 is installed on the top of clamp base 1, for realizing efficient cleaning and the magnetic flow liquid of cutting swarf Body recycles, and mainly includes clearing and retrieving cell body 31, filter screen 32, the pump housing 33 and pipeline 34.The clearing and retrieving cell body 31 For a uncovered cuboid housing, its bottom opens up 4 tapped blind holes, and connecting bottom board 11 is rigidly secured to for being connected through a screw thread On, and make its one side and the positioning clamping windowing of cell body 21 side in sealing contact, and open up one and locating clip in the side The corresponding window of the tight side flow window of cell body 21, the discharge circulated with cutting swarf for magnetic rheological liquid；It is described Filter screen 32 is intercalated among the filtering groove of the left and right sides of clearing and retrieving cell body 31, is divided clearing and retrieving cell body 31 by filter screen There are two regions of window and without window, for residuing in the cutting swarf in magnetic rheological liquid in filtration process, prevent from cutting Swarf enters without window region；The pump housing 33 is fixedly installed in the without window region of clearing and retrieving cell body 31, for that will clear up back Receive the magnetic rheological liquid in cell body 31 and be pumped to locating clip through connecting the pipeline of clearing and retrieving cell body 31 and positioning clamping cell body 21 Tight cell body 21, realizes circulating for magnetic rheological liquid.

The length that clamping slot is positioned in the present embodiment is respectively 600mm, 400mm and 150mm, clearing and retrieving cell body Long and a width of 100mm, 400mm and 180mm, it is 5mm that positioning, which clamps cell body and the wall thickness of clearing and retrieving cell body, and clamp base connects The thickness for connecing positioning clamping slot and clearing and retrieving groove is respectively 50mm and 20mm.

The fixture of the present embodiment is fixed on lathe, then it is each to metal, nonmetallic etc. by two-dimensional movement alignment system Kind material complex parts are clamped positioning, position parts to be processed in clamping slot 2 and complete after positioning, into positioning clamping slot 2 Injection magnetic rheological liquid makes it cover parts to be processed, by adjusting in clamp base 1 by electromagnet and permanent magnet excitation The magnetic field intensity of array, solidifies magnetic rheological liquid, because magnetic rheological liquid acts on force isotropy, therefore can utilize magnetic flow liquid Body realizes that the clamping to parts to be processed provides larger part support stiffness simultaneously, effectively suppresses part in process and becomes Shape, processing vibration, ensure machining accuracy.

It is it should be added that described in the utility model " forward and backward；It is left and right；It is upper and lower " etc. the noun of locality be to retouch State it is clear, only there is relative meaning.Generally, using the length direction of clamp base to be left and right, with the smooth of clamp base Under bottom surface is, and as the benchmark of other nouns of locality.

The utility model does not address part and is applied to prior art.

Claims (5)

1. a kind of novel and multifunctional flexible fixture, it is characterised in that the positioning that the fixture includes being used to position Clamp blocks clamps Groove, the clearing and retrieving groove recycled for cutting swarf cleaning and magnetic rheological liquid and clamp base；

The clamp base is used to positioning clamping slot and clearing and retrieving groove be fixedly mounted, and realizes consolidating for fixture and all kinds of platform of machine tool Fixed connection, including connecting bottom board, electromagnet and permanent magnet；The connecting bottom board is that a bottom surface is smooth, upper surface middle part is raised Platy structure, it is arranged symmetrically for realizing the U that is fixedly connected of the fixture with all kinds of platform of machine tool at left and right sides of connecting bottom board Shape groove, arrangement is some for stationary positioned clamping slot and the connection through holes of clearing and retrieving groove in the middle part of connecting bottom board, on connecting bottom board Surface it is central raised on along the long cross direction of connecting bottom board be evenly arranged a number of groove, between a number of groove Offer the connection groove for arranging electromagnet cable；Each inside grooves are inlaid with hollow electromagnetic iron, the electromagnet Shape specification and the shape specification of groove match；The permanent magnet uses axial charging form, with identical magnetic direction Nesting is installed on inside hollow electromagnetic iron；A number of electromagnet and permanent magnet form an excitation array；

The positioning clamping slot is installed on the central raised top of clamp base, including positioning clamps cell body and two-dimensional movement is determined Position system, the positioning clamp cell body be a size be engaged with connecting bottom board upper surface middle part projection without lid housing, position The bottom for clamping cell body opens up some tapped blind holes, and will position clamping cell body by the tapped blind hole and connection through hole rigidly fixes In the surface that connecting bottom board upper surface middle part is raised, positioning clamps cell body and offers stream with the side that clearing and retrieving groove is in contact Dynamic window；The two-dimensional movement of the horizontal and vertical positioning for parts to be processed is installed with the inside of positioning clamping cell body Alignment system；

The clearing and retrieving groove is installed on the top of clamp base and the side of adjacent positioning clamping slot, including clearing and retrieving groove Body, filter screen, the pump housing and pipeline；The clearing and retrieving cell body is for one without lid housing, and its bottom opens up some tapped blind holes, by this Clearing and retrieving cell body is rigidly secured on connecting bottom board by tapped blind hole and connection through hole, and the one side of clearing and retrieving cell body is with determining The mobile window side that position clamps cell body is in sealing contact, and one and positioning clamping slot are opened up in the side of the clearing and retrieving cell body The corresponding window of the mobile window of body；Filtering groove is equipped with the inside of the side of the left and right of clearing and retrieving cell body two, it is described Filter screen is intercalated among two filtering grooves, and clearing and retrieving cell body has been divided into window area and without window region；It is described The pump housing is fixedly installed in the without window region of clearing and retrieving cell body, and described pipeline one end is connected with the pump housing, and the other end passes through cleaning Recovery cell body clamps cell body with positioning and is connected.

2. novel and multifunctional flexible fixture according to claim 1, it is characterised in that the two-dimensional movement alignment system bag Include location-plate, dowelled spanner, transverse slat, two cross slide ways and two longitudinal rails；Described two cross slide ways clamp along positioning Cell body width, which is symmetrically arranged in positioning and clamped, makes cross slide way parallel with positioning clamping cell body length direction inside cell body, and It is connected through a screw thread and is rigidly secured to positioning clamping cell body bottom；Two transverse sliders are respectively and fixedly provided with each cross slide way, The transverse slider coordinates with cross slide way forms prismatic pair, and transverse slider can be moved transversely guide rail；In different cross slide ways On two neighboring transverse slider between be fixedly connected with transverse slat, two transverse slats are orthogonal with cross slide way；It is solid on two transverse slats Surely two longitudinal rails are connected with, two longitudinal rails are orthogonal with two cross slide ways；Connect fixed on guide rail longitudinally in each Two longitudinal sliding blocks are connected to, the longitudinal sliding block coordinates with longitudinal rail forms prismatic pair, and longitudinal sliding block can move along longitudinal rail It is dynamic；There is a location-plate being rigidly connected on sliding block longitudinally in each, there are the location-plate two orthogonal to be used for what is positioned Datum plane, and two orthogonal datum planes for being used to position are towards the inner side of cross slide way and longitudinal rail, and perpendicular to Positioning clamps the bottom surface of cell body；Screwed hole is provided with the location-plate and transverse slat, the dowelled spanner lower end is a screw thread The platy structure that it is screwed is easy in bar, upper end for one, and it is fixed that realization in the screwed hole of location-plate and transverse slat is inserted by dowelled spanner The fixation of position plate and longitudinal sliding block, longitudinal rail and transverse slat and transverse slider, cross slide way.

3. novel and multifunctional flexible fixture according to claim 1, it is characterised in that the mobile window is rectangle, cleaning Reclaim cell body bottom surface and clamp cell body bottom surface less than positioning.

4. novel and multifunctional flexible fixture according to claim 1, it is characterised in that the electromagnet is hollow cylindrical.

5. novel and multifunctional flexible fixture according to claim 1, it is characterised in that the positioning clamps cell body and cleaning It is rectangular shape to reclaim cell body.