CN105127529A - Rotating feeding spindle head mechanism applicable to wire discharge grinding for micro electric spark machining - Google Patents
Rotating feeding spindle head mechanism applicable to wire discharge grinding for micro electric spark machining Download PDFInfo
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- CN105127529A CN105127529A CN201510561439.6A CN201510561439A CN105127529A CN 105127529 A CN105127529 A CN 105127529A CN 201510561439 A CN201510561439 A CN 201510561439A CN 105127529 A CN105127529 A CN 105127529A
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- normally closed
- rotating shaft
- platen
- clamping piece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
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- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a rotating feeding spindle head mechanism applicable to wire discharge grinding for micro electric spark machining. The rotating feeding spindle head mechanism comprises a machining feeding sliding block, a creep feeding piece, a hollow shaft motor, a first driving assembly, a pressure disc assembly, a normally-open clamp, a first bearing pedestal, a normally-closed clamp and a second driving assembly, wherein the hollow shaft motor and the first driving assembly are arranged on the creep feeding piece, and the first bearing pedestal is fixed to the machining feeding sliding block. The hollow shaft motor drives the pressure disc assembly to rotate. The first driving assembly drives a moving part of the pressure disc assembly to move up and down. The normally-open clamp comprises a normally-open rotating shaft and a normally-open clamping part. The moving part drives the normally-open clamping part to move up and down between the opening position and the closing position relative to the normally-open rotating shaft. The normally-closed clamp comprises a normally-closed rotating shaft and a normally-closed clamping part. The second driving assembly and the normally-closed clamp are matched so as to control the normally-closed clamping part to be opened or closed. Accordingly, thin and long electrode wires to be thinned can be clamped at a time, and the functions of creep feeding, high-precision rotation, rotation perigon positioning and the like of the thin and long electrode wires can be achieved.
Description
Technical field
The present invention relates to micro-NTM technical field, especially relate to a kind of micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding.
Background technology
In many modernization high-performance complex device or MEMS, the small fine structures such as micropore, microflute, micro three-dimensional structure are often the cores determining its performance.Such as, industrial jet printer ink gun requires to have tens micro-spraying holes, micro-spraying hole diameter range is between 20 μm ~ 40 μm, and the aperture precision of micro-spraying hole requires high, and general precision needs below 2 μm.But the processing method in correlation technique is difficult to meet small fine structure process technology requirement on special material or thin-wall part.
Micro-EDM Machining Technology have contactless, precision is high, impulse-free robustness, the advantage such as can to process after heat treatment, is applicable to the precision manufactureing of conductive material micro-structure part.For the micro EDM of fine structure, need to adopt the Micro Wire Electrode adapted with technical process.For avoiding the problem such as secondary clamping error and microoperation difficulty, the many need of Micro Wire Electrode make online, and wherein Micro Wire Electrode refers to the wire electrode that diameter is less than 100 μm.Consider the problem that elongated Micro Wire Electrode rigidity is low, the Micro Wire Electrode produced before using is unsuitable long, otherwise will affect fine structure machining accuracy and efficiency.And owing to there is more serious loss problem in Micro Wire Electrode use, micro-electrode needs after using a period of time again to make online.
Although line electric discharge method for grinding can realize high accuracy Micro Wire Electrode and make online, but mainly still hold shorter one section of bar by rotary main shaft head-clamp, online making one section of Micro Wire Electrode carries out micro EDM use, use rear micro-electrode loss to shorten, more artificial clamping again one section of bar repeat said process.This process efficiency is low, cannot meet mass processing micro-structure demand in commercial Application, limit the application development of Micro-EDM Machining Technology.
In correlation technique, the swivel feeding mainshaft head mechanism of slender electrode can be realized, mainly be suitable for adopting without the need to the WEDG (abbreviation of wireelectro-discharegrinding, i.e. line electric discharge grinding) the micropore spark machined of the thin electrode of drawing that makes, by normally closed clip, often drive clip and replace folding and the sub-relative feed movement of double fastener, thin electrode creep feed auto-compensation export license, but introduce random irregular footpath jumping error problem because its guider exists gap, thin electrode difficulty after clip pine folder accurately ensures in pivot problem, the disalignment error problem of rotation and creep feed, be difficult to meet WEDG and make wriggling to micro-electrode online and high-precision rotary requirement.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the invention reside in and propose a kind of micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding, wriggling, high-precision rotary processing request can be met.
According to the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding of the present invention, comprise: support, described support comprises processing feeding slide block and creep feed part, and described creep feed part is located on described processing feeding slide block and relatively described processing feeding slide block is removable; Hollow shaft motor and the first driven unit, described hollow shaft motor and described first driven unit are located on described creep feed part respectively; Platen assembly, described platen assembly is connected with described hollow shaft motor and rotates to be driven by described hollow shaft motor, and described platen assembly has and is connected to drive by described first driven unit the moving member moved up and down with described first driven unit; Often drive clip, described often open that clip comprises hollow often open rotating shaft and Chang Kai clamping piece, described upper end of often opening rotating shaft is connected with described platen assembly, described clamping piece of often opening is connected to make the described relative described rotating shaft of often opening of clamping piece of often opening can move up and down between open and closed positions by connecting tube with described moving member, in described closed position, described clamping piece of often opening coordinates with clamping electrode silk with described rotating shaft of often opening, and described connecting tube is communicated with the motor shaft of described hollow shaft motor; Be provided with the clutch shaft bearing seat of clutch shaft bearing, described clutch shaft bearing seat is fixed on described processing feeding slide block; Normally closed clip, described normally closed clip comprises the normally closed rotating shaft of hollow and normally closed clamping piece, described normally closed clamping piece is located at the lower end of described normally closed rotating shaft, the upper end of described normally closed rotating shaft coordinates with described clutch shaft bearing, chamber is limited in described normally closed rotating shaft, described often open rotating shaft lower end and described chamber be slidably matched and drive described normally closed rotating shaft to rotate, the lower end of described normally closed rotating shaft is provided with guider, and described wire electrode passes described guider and is clamped on described normally closed clamping piece; Second driven unit, described second driven unit is located at and coordinates to control described normally closed clamping piece on described support or described clutch shaft bearing seat and with described normally closed clip and open or close.
According to the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding of the present invention, can the elongated thin wire electrode to be repaired of clamped one time, realize the functions such as the creep feed of slender electrode silk, high-precision rotary, rotation round angle location.
In certain embodiments, described platen assembly comprises: shaft coupling, and described shaft coupling is connected with the motor shaft of described hollow shaft motor; Connector, described connector is fixed on the lower surface of described shaft coupling, and described upper end of often opening rotating shaft is fixed on described connector; Platen, described platen is located on described connector movably to limit described moving member, the two ends of described connecting tube are separately fixed at described platen and describedly often open on clamping piece, and described first driven unit is connected with described platen to drive described platen to move up and down.
In certain embodiments, described platen is stretched out to extend in described shaft coupling in the upper end of described connecting tube.
In certain embodiments, described in be suitable for line electric discharge grinding micro EDM swivel feeding mainshaft head mechanism also comprise the second bearing block, be provided with the second bearing in described second bearing block, describedly often open rotating shaft and described second bearing fit.
In certain embodiments, described connector comprises: multiple connection mast, described multiple connection mast is located at respectively describedly often to be opened between rotating shaft and described shaft coupling, described platen is provided with multiple moving hole, described multiple moving hole is arranged with described multiple mast one_to_one corresponding that is connected, and each described moving hole moves cooperation with the corresponding described mast that is connected.
In certain embodiments, described first driven unit comprises the first pushing-type electromagnet and the first return unit, described first pushing-type electromagnet is connected to promote described platen and moves down with the roof of described platen, the two ends of described first return unit are connected with normal upwardly described platen with described rotating shaft of often opening with the diapire of described platen respectively.
In certain embodiments, described normally closed clamping piece comprises the first holder and the second holder, described first holder is fixed on described normally closed rotating shaft, and described second holder is located on described normally closed rotating shaft movably to coordinate with described first holder or to depart from; Described second driven unit comprises: normally closed clip depression bar, and described normally closed clip depression bar is located at movably on described normally closed rotating shaft and coordinates to clamp described wire electrode with described first holder often to promote described second holder; Second pushing-type electromagnet, described second pushing-type electromagnet is fixed on described clutch shaft bearing seat, and the drive end of described second pushing-type electromagnet is provided with link assembly, and described link assembly comprises horizon bar; Fixture, described fixture is fixed on described clutch shaft bearing seat, described horizon bar can be located on described fixture with moving horizontally, and drives described horizon bar to move described normally closed clip depression bar and described second holder are departed from towards described normally closed clip depression bar during described second pushing-type electromagnet energising; Second return unit, described second return unit is connected with described fixture with described horizon bar often to drive described horizon bar to move towards the direction away from described normally closed clip depression bar respectively.
In certain embodiments, insulation contiguous block is provided with between described clutch shaft bearing seat and described support.
In certain embodiments, be provided with insulation tube in the motor shaft of described hollow shaft motor, described connecting tube is glass tube.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic front view of the swivel feeding mainshaft head mechanism according to the embodiment of the present invention;
Fig. 2 is the overall structure schematic side view of the swivel feeding mainshaft head mechanism according to the embodiment of the present invention;
Fig. 3 is the allomeric function structural representation of the swivel feeding mainshaft head mechanism according to the embodiment of the present invention;
Fig. 4 is a partial cutaway schematic of the swivel feeding mainshaft head mechanism according to the embodiment of the present invention;
Fig. 5 is a partial schematic diagram of the swivel feeding mainshaft head mechanism according to the embodiment of the present invention;
Fig. 6 is another partial schematic diagram of the swivel feeding mainshaft head mechanism according to the embodiment of the present invention;
Fig. 7 is the sectional view of the swivel feeding mainshaft head mechanism clamping electrode silk according to the embodiment of the present invention;
Fig. 8 carries out WEDG mass capillary processing procedure chart according to the swivel feeding mainshaft head mechanism of the embodiment of the present invention;
Fig. 9 is the aperture process figure carrying out without the need to WEDG according to the swivel feeding mainshaft head mechanism of the embodiment of the present invention;
Figure 10 is the WEDG fundamental diagram according to the embodiment of the present invention.
Reference numeral:
100: swivel feeding mainshaft head mechanism;
1: normally closed clamping piece; 2: clutch shaft bearing; 3: hollow shaft motor; 4: proximity switch; 5: connect mast; 6: often open rotating shaft; 7: straight pin; 8: normally closed rotating shaft; 9: often open clamping piece; 10: Micro Wire Electrode; 11: the first pushing-type electromagnet; 12: platen; 13: glass tube; 14: the first return units; 15: guider; 16: the second pushing-type electromagnet; 17: normally closed clip depression bar; 18: the second return units; 19: insulation contiguous block; 20: insulation tube; 21: processing feeding slide block; 22: creep feed part; 23: clutch shaft bearing seat; 24: chamber; 25: support; 26: the second bearing blocks; 27: the first holders; 28: the second holders; 29: pin; 30: fixture; 31: horizon bar; 32: the first traces; 33: the second traces; 40: fine motor guiding mechanism.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.
Below with reference to the accompanying drawings the micro EDM swivel feeding mainshaft head mechanism 100 being suitable for line electric discharge grinding according to the embodiment of the present invention is described.
As shown in Figure 1, according to the micro EDM swivel feeding mainshaft head mechanism 100 being suitable for line electric discharge grinding of the embodiment of the present invention, comprise: support 25, hollow shaft motor 3, first driven unit (such as can comprise the first pushing-type electromagnet 11 and the first return unit 14 etc. hereinafter described), second driven unit (such as can comprise normally closed clip depression bar 17 hereinafter described, second pushing-type electromagnet 16, fixture 30 and the second return unit 18 etc.), platen assembly (such as can comprise shaft coupling 24 hereinafter described, connect mast 5 and platen 12 etc.), often drive clip (such as can comprise hereinafter described often open rotating shaft 6 and Chang Kai clamping piece 9 etc.) and normally closed clip (such as can comprise normally closed rotating shaft 8 and normally closed clamping piece 1 etc. hereinafter described).
With reference to Fig. 1, support 25 comprises: processing feeding slide block 21 and creep feed part 22, creep feed part 22 is located on processing feeding slide block 21 and processing feeding slide block 21 is removable relatively, and that is, creep feed part 22 can be synchronized with the movement or relative motion with processing feeding slide block 21.
Further, as shown in Figure 1, hollow shaft motor 3 and the first driven unit are located on creep feed part 22 respectively.Such as, hollow shaft motor 3 can be fixed on creep feed part 22 by electric machine support, the part of the first driven unit (such as the first pushing-type electromagnet 11) hereinafter described can be fixed on creep feed part 22, thus creep feed part 22 can drive hollow shaft motor 3, first pushing-type electromagnet 11 fixed thereon to be synchronized with the movement.
With reference to Fig. 1, platen assembly is connected to drive rotation by hollow shaft motor 3 with hollow shaft motor 3, and platen assembly has and to be connected the being driven moving member (such as platen 12) hereinafter described moved up and down by the first driven unit with the first driven unit.Thus, hollow shaft motor 3 can drive platen component integration opposite brackets 25 to rotate, and the first driven unit can drive moving member relative creep feeding part 22 to move up and down.
With reference to Fig. 1 and Fig. 5, often open the top that clip is located at normally closed clip, thus, whether whether the Micro Wire Electrode 10 supplied from the top down can first control to clamp by often driving clip, then controlled to clamp by normally closed clip.Under normal circumstances, often drive clip and be in normally open and do not clamp Micro Wire Electrode 10, normally closed clip is in normally off clamping Micro Wire Electrode 10, like this, under normal circumstances, the Micro Wire Electrode 10 supplied from the top down, first can pass through and often drive clip, then by normally closed clamp.
That often opens that clip comprises hollow often opens rotating shaft 6 and Chang Kai clamping piece 9, that often opens that clamping piece 9 can be located in hollow often opens in rotating shaft 6, often open clip entirety to rotate with platen component synchronization under the driving effect of platen assembly, the clamping piece 9 of often opening often opened in clip relatively often opens rotating shaft about 6 slippage under the driving effect of moving member.Specifically, the upper end of often opening rotating shaft 6 is connected with platen assembly, thus often open rotating shaft 6 can follow platen component synchronization rotate, often open clamping piece 9 to be connected by connecting tube with moving member, thus the first driven unit drives in the process that moves up and down of moving member, moving member driving is often opened clamping piece 9 and is synchronously moved up and down, and then make often to open clamping piece 9 and relatively often open rotating shaft 6 and can move up and down between open and closed positions, in open position, often open clamping piece 9 to be in the normal state, namely the state of wire electrode 10 is discharged, in closed position, often open clamping piece 9 and change closed condition into, the i.e. state of clamping electrode silk 10.
Such as in the example of hgure 5, the bottom of often opening rotating shaft 6 limits back taper cylindrical cavity substantially, often opening clamping piece 9 is two elastic clips be oppositely arranged, when often to open clamping piece 9 relatively often open rotating shaft 6 move downward time, it is bringing together that back taper cylindrical cavity can promote two elastic clips, thus realize often opening the closed of clamping piece 9, when often to open clamping piece 9 relatively often open rotating shaft 6 move upward time, two elastic clips upwards shift out in back taper cylindrical cavity, recover elastic deformation and toward each other away from direction separately, thus realize often opening opening of clamping piece 9.In brief, that often opens the location clamping of the clip employing conical surface often opens clamping structure, often open clamping piece 9 by male cone (strobilus masculinus) with often open rotating shaft 6 inner conical surface and locate, axially retreat relative to often opening rotating shaft 6 by often opening clamping piece 9, the conical surface compresses or unclamps to realize wire electrode 10 in the clamping of often opening in clamping piece 9 with unclamp.Thus, not only make the compact structure of swivel feeding mainshaft head mechanism 100 compact, and be conducive to the thinner axis of wire electrode 10 after clamping and release and the autoregistration of rotation.
Connecting tube can be glass tube 13 and be communicated with the motor shaft of hollow shaft motor 3, such as in the example of fig. 1, the motor shaft of hollow shaft motor 3 is hollow and vertically extends, insulation tube 20 can be provided with in motor shaft, to guarantee the safe and reliable work of swivel feeding mainshaft head mechanism 100, connecting tube is glass tube 13 and upper end can plug and is fixed in insulation tube 20, the lower end of connecting tube is with often to open clamping piece 9 fixing and be located in and often open in rotating shaft 6, thus can enter in connecting tube downwards from the wire electrode 10 that motor shaft is thrown in, wire electrode 10 is clamped through often opening clamping piece 9 after connecting tube or discharges.Here, release can be understood as and not have clamping force to wire electrode 10.
Thus, connecting tube has two effects, on the one hand the power of moving member is passed to often open clamping piece 9 and often open clamping piece 9 move up and down to drive, to control the opening and closing of often opening clamping piece 9, be the wire electrode 10 dropped into from motor shaft is led safely and reliably often open clamping piece 9 on the other hand.
With reference to Fig. 1 and Fig. 4, normally closed clip is located at the below of often driving clip, with the normally closed clip clamping wire electrode 10 making distance processing end nearer, thus improves rigidity and the effective rate of utilization of wire electrode 10.Specifically, normally closed clip comprises normally closed rotating shaft 8 and the normally closed clamping piece 1 of hollow, clutch shaft bearing seat 23 is fixed on processing feeding slide block 21, alternatively, clutch shaft bearing seat 23 can be fixedly connected with by insulation contiguous block 19 with processing feeding slide block 21, to improve the safety and reliability of work, clutch shaft bearing 2 is provided with in clutch shaft bearing seat 23, normally closed rotating shaft 8 can be located to smooth rotation on support 25 by clutch shaft bearing 2, normally closed clamping piece 1 is located at the lower end of normally closed rotating shaft 8, thus normally closed clamping piece 1 can follow normally closed rotating shaft 8 synchronous axial system and translation.
With reference to Fig. 4 and Fig. 6, second driven unit is located at and coordinates to control normally closed clip on support 25 or clutch shaft bearing seat 23 and with normally closed clip and open or close, that is, second driven unit can be in the normal state clamping electrode silk 10 by the normally closed clamping piece 1 of self action control, still changes open mode release wire electrode 10 into.
As shown in Figure 4 and Figure 5, often opening rotating shaft 6 and normally closed rotating shaft 8 can synchronous axial system and can sliding to axial, specifically, chamber 24 is limited in normally closed rotating shaft 8, lower end and the chamber 24 of often opening rotating shaft 6 are upper without relative limit at axial (vertical direction such as shown in Fig. 4), often open the lower end of rotating shaft 6 and chamber 24 has relative limit in circumference (the horizontal circle circumferential direction such as shown in Fig. 4), such as can by being plugged in the straight pin 7 often opened on rotating shaft 6 along often opening rotating shaft 6 radial direction to carry out circumference spacing.
Further, with reference to Fig. 6, the lower end of normally closed rotating shaft 8 is provided with guider 15, wire electrode 10 is through being clamped on normally closed clamping piece 1 after guider 15, that is, from often open wire electrode 10 that clamping piece 9 passes downwards need in advance through guider 15 again through normally closed clamping piece 1, often to be clamped by normally closed clamping piece 1.
Particularly, with reference to Fig. 6 and Fig. 7, in one embodiment of the invention, normally closed clamping piece 1 comprises the first holder 27 and the second holder 28, first holder 27 is fixed on normally closed rotating shaft 8, second holder 28 is located on normally closed rotating shaft 8 movably to coordinate with the first holder 27 or to depart from, wherein, when the second holder 28 coordinates with the first holder 27, normally closed clamping piece 1 is closed with clamping electrode silk 10, when the second holder 28 and the first holder 27 depart from, normally closed clamping piece 1 is opened to loosen wire electrode 10.Wherein, the second holder 28 can limit V-shaped groove, coordinate clamping electrode silk 10 for the first holder 27.
Like this, retrain owing to adopting V-type groove location and guider 15 simultaneously, accurately can ensure that slender electrode silk 10 is positioned pivot after often opening clip wriggling, and the rotation high accuracy of wire electrode 10 is ensured by lower end clutch shaft bearing 2, that is, normally closed clip adopts V-type groove positioning clamping, can be arranged on the pivot of clutch shaft bearing 2, and ensure wire electrode 10 running accuracy by the running accuracy of clutch shaft bearing 2 by after wire electrode 10 axis trimming in clamping V-type groove.When normally closed clip unclamps or clamps, the position of wire electrode 10 can also be retrained by the guider 15 of upper end, avoid wire electrode 10 to depart from V-type groove.
To sum up, when hollow shaft motor 3 works, hollow shaft motor 3 can be driven by platen assembly etc. and often open clip rotation, often drive clip and can drive normally closed clip synchronous axial system, during the first driven unit work, platen assembly can be driven by connecting tube and often drive the relatively normally closed clip of clamping piece 9 and move up and down, to realize the opening and closing of often opening clamping piece 9, during the second driven unit work, the opening and closing of normally closed clamping piece 1 can be realized.
Like this, carry out in the process of WEDG processing or processing array micropore at swivel feeding mainshaft head mechanism 100, processing feeding slide block 21 and creep feed part 22 geo-stationary, often open that clip is opened, normally closed clip cuts out, hollow shaft motor 3 drives platen assembly, often opens clip and normally closed clip synchronous axial system, thus realizes WEDG processing or the action of processing array micropore.
Carry out in the process of wire electrode 10 loss balancing at swivel feeding mainshaft head mechanism 100, first creep feed part 22 processing feeding slide block 21 upward sliding is relatively driven, move to drive often to open on clip, then often open clamping piece 9 by the first driven unit driving move down and make often to open clip closedown clamping wire electrode 10, then normally closed clip is opened by the second driven unit, drive creep feed part 22 processing feeding slide block 21 slide downward relatively again, then normally closed clamp wire electrode 10 is closed by the second driven unit, then drive often to open clamping piece 9 moves and make often to drive clip by the first driven unit and open, thus complete the loss balancing action of wire electrode 10.
Thus, processing Feed servo system is adopted to compensate with wire electrode 10 creep feed the type of drive driving and be separated, specifically, adopt hollow shaft motor 3 to drive to rotate, by platen assembly, power and Movement transmit are often opened rotating shaft 6, often open rotating shaft 6 by circumference pin 7 by power and Movement transmit to normally closed rotating shaft 8, normally closed rotating shaft 8 is arranged on clutch shaft bearing 2, normally closed clamping piece 1 clamps and drives wire electrode 10 continuous rotation and circumference location, thus on the running accuracy of wire electrode 10 without impact, the running accuracy that WEDG adds wire electrode 10 in man-hour can be ensured by clutch shaft bearing 2, and then effectively and reliably improve processing effect.
According to the micro EDM swivel feeding mainshaft head mechanism 100 being suitable for line electric discharge grinding of the embodiment of the present invention, can the elongated thin wire electrode 10 to be repaired of clamped one time, (diameter is between 0.1mm ~ 0.2mm can to realize comparatively slender electrode silk 10, the wire electrode of length between 0mm ~ 500mm) creep feed, high-precision rotary, rotate the function of round angle location, the wire electrode 10 repeatedly online WEDG demand that makes and use can be met, improve the online make efficiency of wire electrode 10 and automaticity, can be applicable to the batch-automated micro EDM of micro-structure.
In brief, utilize this kind of swivel feeding mainshaft head mechanism 100, avoid the impact of rotary drive mechanism kinematic error on wire electrode 10 running accuracy, improve mainshaft mechanism make online for WEDG and for 10 running accuracies of wire electrode during micro EDM, be conducive to improving wire electrode 10 and make precision and micro EDM precision online.
In one embodiment of the invention, with reference to Fig. 4 and Fig. 5, platen assembly comprises: shaft coupling 24, connector (such as connection mast 5) hereinafter described and platen 12, shaft coupling 24 is connected with the motor shaft of hollow shaft motor 3, connector is fixed on the lower surface of shaft coupling 24, the upper end of often opening rotating shaft 6 is fixed on connector, thus hollow shaft motor 3 can be driven by shaft coupling 24 and connector and often open rotating shaft 6 and rotate, platen 12 is located on connector movably to limit moving member, that is, platen 12 can move up and down along connector, thus platen 12 can be interpreted as the moving member on platen assembly, the two ends of connecting tube are separately fixed on platen 12 and Chang Kai clamping piece 9, thus can drive in the process that moves up and down of platen 12 and often open clamping piece 9 and move up and down.Thus, the structure of platen assembly is simple, is convenient to processing and realizes.Alternatively, platen 12 is stretched out to extend in shaft coupling 24 in the upper end of connecting tube, and thus, connecting tube can move more reposefully.
In one embodiment of the invention, with reference to Fig. 4 and Fig. 5, connector comprises: multiple connection mast 5, multiple connection mast 5 is located at respectively often to be opened between rotating shaft 6 and shaft coupling 24, the upper end of each connection mast 5 is all fixedly linked with shaft coupling 24, the lower end of each connection mast 5 all with often open rotating shaft 6 and be fixedly linked, thus hollow shaft motor 3 can pass through shaft coupling 24, connection mast 5 drives often opens rotating shaft 6 synchronous rotary, platen 12 is provided with multiple moving hole, multiple moving hole is arranged with multiple mast 5 one_to_one corresponding that is connected, each moving hole moves with corresponding connection mast 5 and coordinates, that is, multiple connection mast 5 is located in multiple moving hole respectively correspondingly.Thus, platen 12 can move up and down along multiple connection mast 5, can guarantee that platen 12 moves up and down more reposefully like this, improves the job stability of swivel feeding mainshaft head mechanism 100.
Alternatively, with reference to Fig. 1, swivel feeding mainshaft head mechanism 100 also comprises in the second bearing block 26, second bearing block 26 and is provided with the second bearing, often opens rotating shaft 6 and the second bearing fit.Thus, often opening rotating shaft 6 can rotate more reposefully, improves processing effect.
In one embodiment of the invention, with reference to Fig. 5, first driven unit is connected for driving platen 12 to move up and down with platen 12, wherein, first driven unit can comprise the first pushing-type electromagnet 11 and the first return unit 14, first pushing-type electromagnet 11 is connected with the roof of platen 12 and moves down to promote platen 12, and the two ends of the first return unit 14 are only supported with the diapire of platen 12 and the roof of Chang Kai rotating shaft 6 with normal upwardly platen 12 respectively.
Such as in the example of Fig. 4 and Fig. 5, the first pushing-type electromagnet 11 can be arranged symmetrically with and be fixed on creep feed part 22, promotes platen 12 in the vertical direction.First return unit 14 is located between the lower surface of platen 12 and the upper surface of often opening rotating shaft 6, moves up often to promote platen 12.Like this, the platen 12 be connected with glass tube 13 is promoted by adopting the first pushing-type electromagnet 11 be arranged symmetrically with, motive force can be passed to by platen 12 and glass tube 13 and often open clamping piece 9 by the first pushing-type electromagnet 11, when the first pushing-type electromagnet 11 does not power up, platen 12 is in upper under the effect of the elastic force of the first return unit 14 (such as spring), the male cone (strobilus masculinus) often opening clamping piece 9 is separated with the inner conical surface often opening rotating shaft 6, to realize often opening unclamping of clip, be in and often open normality, when the first pushing-type electromagnet 11 powers up, platen 12 compresses the first return unit 14, often open clamping piece 9 male cone (strobilus masculinus) and often open rotating shaft 6 inner conical surface and compress, realize the clamping of often driving clip, be in abnormal closed condition.Thus, the structure of the first driven unit is simple, working effect is reliable.
With reference to Fig. 6 and Fig. 7, second driven unit comprises: normally closed clip depression bar 17, second pushing-type electromagnet 16, fixture 30 and the second return unit 18, and normally closed clip depression bar 17 is located at movably on normally closed rotating shaft 8 and coordinates with clamping electrode silk 10 with the first holder 27 often to promote the second holder 28.Such as in the example of fig. 6, normally closed clip depression bar 17 is located on normally closed rotating shaft 8 by pin 29 pivotly, pin 29 can be located at the middle part of normally closed clip depression bar 17, elastic component can be provided with between the upper end of normally closed clip depression bar 17 and normally closed rotating shaft 8, elastic component is used for the normal upper end promoting normally closed clip depression bar 17 and moves towards the direction away from normally closed rotating shaft 8, thus the lower end of normally closed clip depression bar 17 can coordinate with the first holder 27 often to promote the second holder 28 in the direction motion of Chang Chaoxiang rotating shaft, thus clamping electrode silk 10.
With reference to Fig. 6, second pushing-type electromagnet 16 is fixed on clutch shaft bearing seat 23, fixture 30 is fixed on clutch shaft bearing seat 23, the drive end (lower end such as shown in Fig. 1) of the second pushing-type electromagnet 16 is provided with link assembly, link assembly can comprise horizon bar 31, first trace 32 and the second trace 33, horizon bar 31 can be located on fixture 30 with moving horizontally, when in the process that the drive end of the second pushing-type electromagnet 16 moves up and down, horizon bar horizontal reciprocating in fixture 30 can be promoted by the first trace 32 and the second trace 33 and move.
Specifically, horizon bar 31 is driven to move the lower end of normally closed clip depression bar 17 and the second holder 28 are departed from towards normally closed clip depression bar 17 when second pushing-type electromagnet 16 is energized, such as in the example of fig. 6, second pushing-type electromagnet 16 can make the second trace 33 move down when being energized, thus promote by the first trace 32 horizon bar 31 to promote normally closed clip depression bar 17 upper end towards the direction of normally closed clip depression bar 17 and move towards the direction of normally closed rotating shaft 8, thus move towards the direction away from normally closed rotating shaft 8 in the lower end of normally closed rotating shaft 8, to loosen the second holder 28, second holder 28 and the first holder 27 are departed from.
As shown in Figure 6, the second return unit 18 is connected with fixture 30 with horizon bar 31 often to drive horizon bar 31 to move towards the direction away from normally closed clip depression bar 17 respectively.Thus, by arranging the second return unit 18 (such as spring), second pushing-type electromagnet 16 promote horizon bar 31 towards normally closed rotating shaft 8 direction motion time, the second return unit 18 can be compressed, when after closedown second pushing-type electromagnet 16, second return unit 18 can recover deformation, to promote horizon bar 31 towards the direction away from normally closed rotating shaft 8, thus the state that can return to normal promotion the second holder 28 and coordinate with the first holder 27 opened by normally closed clip depression bar 17, thus normally closed clamping electrode silk 10.
Like this, link assembly is promoted by the second pushing-type electromagnet 16 of single-sided arrangement, the thrust of vertical direction is converted to horizontal direction, electromagnet thrust is passed to normally closed clip depression bar 17, when the second pushing-type electromagnet 16 does not power up, under the second return unit 18 acts on, horizon bar 31 is in right position, normally closed clip depression bar 17 is in original position, normally closed clamp when realizing normality under spring force, when the second pushing-type electromagnet 16 powers up, horizon bar 31 is in left position and overcomes spring force, normally closed clip depression bar 17 is open, and realizes normally closed clip and unclamps.
Referring to Fig. 1-Figure 10, concise and to the point description is according to the micro EDM swivel feeding mainshaft head mechanism 100 being suitable for line electric discharge grinding of the present invention's specific embodiment, this swivel feeding mainshaft head mechanism 100 can realize the long Micro Wire Electrode 10 of clamped one time, and intermittence repeatedly or continuously makes more Micro Wire Electrode (i.e. diameter be less than 100 μm wire electrode) at WEDG.
Below in conjunction with accompanying drawing describe in detail swivel feeding mainshaft head mechanism 100 of the present invention formation, connect and matching relationship, course of action and operating procedure, specifically, first describe machinery formation and assembly connection relation in detail, then introduce this swivel feeding mainshaft head mechanism 100 of application and carry out WEDG mass capillary processing process and without the need to the two methods example of the aperture process of WEDG, operating procedure of the present invention and course of action are described.
Below, formation and the assembling of swivel feeding mainshaft head mechanism 100 is introduced.
Fig. 1-Fig. 7 is known, and normally closed clamping piece 1 is gluing fixing with the lower end of normally closed rotating shaft 8, and normally closed rotating shaft 8 is affixed with the inner ring close interference of clutch shaft bearing 2, and the outer ring of clutch shaft bearing 2 is fixed on processing feeding slide block 21 by clutch shaft bearing seat 23.Hollow shaft motor 3 is fixed on creep feed part 22 respectively by the mode be threaded with proximity switch 4.Often open rotating shaft 6 to be fixed on creep feed part 22 and affixed with straight pin 7 close interference, straight pin 7 slides axially with normally closed rotating shaft 8 and contacts, and gives normally closed rotating shaft 8 by power and Movement transmit.Here, it should be noted that, the structure of proximity switch 4 and operation principle should be well known to those skilled in the art, and no longer describe in detail here.
From Fig. 1 and Fig. 5, often opening clamping piece 9 can be bivalve chuck, and by male cone (strobilus masculinus) with often open rotating shaft 6 inner conical surface and locate, by often opening axis (vertical direction such as shown in Fig. 1) advance and retreat of clamping piece 9, realize wire electrode 10 in the clamping of often opening in clamping piece 9 with unclamp.
From Fig. 1-Fig. 5, being arranged symmetrically with the first pushing-type electromagnet 11 is fixed on creep feed part 22, can axially promote platen 12, the lower end of often driving the upper end of clamping piece 9 and glass tube 13 is gluing affixed, platen 12 is connected with glass tube 13 is gluing, thus axial motive force can be passed to by platen 12 and glass tube 13 by the first pushing-type electromagnet 11 often open clamping piece 9, the bottom of platen 12 is provided with the first return unit 14, and platen 12 is in upper under the effect of the first return unit 14.Insulation tube 20 is affixed with hollow shaft motor 3 close interference, and glass tube 13 is located in insulation tube 20.
From Fig. 1, Fig. 6, Fig. 7, often open clamping piece 9 by the wire electrode 10 in elastic deformation clamping V-type groove, guider 15 is affixed with normally closed rotating shaft 8 close interference.Wire electrode 10 axis is in the pivot of clutch shaft bearing 2 under the effect of often driving clamping piece 9 and guider 15, the mode that second pushing-type electromagnet 16 is threaded connection is fixed on processing feeding slide block 21, the thrust of vertical direction is converted to horizontal direction by link assembly by the second pushing-type electromagnet 16, second return unit 18 is in compressive state with link assembly, thrust is passed to normally closed clip depression bar 17 by the elastic force that the second pushing-type electromagnet 16 overcomes the second return unit 18, and normally closed clip depression bar 17 is hinged by pin 29 and normally closed rotating shaft 8.
Due to insulation contiguous block 19, insulation tube 20, glass tube 13, often open clamping piece 9, straight pin 7 is insulating materials part, such as ceramic member, thus micro EDM Pulse Electric and the isolation of often opening rotating shaft 6, normally closed rotating shaft 8 can be realized, thus guarantee that swivel feeding mainshaft head mechanism 100 can work safely and reliably.
Below, that introduces swivel feeding mainshaft head mechanism 100 carries out WEDG (discharging grinding and paring of line electrode) mass capillary processing process.
A () electrode is installed
Proximity switch 4 is determined to rotate zero-bit, and hollow shaft motor 3 central shaft rotates to zero-bit, and the second pushing-type electromagnet 16 is energized, promote link assembly, the thrust of vertical direction is converted to horizontal direction, and promote normally closed clip depression bar 17 and overcome Compress Spring active force, normally closed clip is opened.Wire electrode 10 is put into from hollow shaft motor 3 top, wire electrode 10 is dropped through and often opens clamping piece 9 under gravity, finally arrive at normally closed clip, after wire electrode 10 stretches out normally closed clip suitable distance, second pushing-type electromagnet 16 power-off, normally closed clip closed clamping wire electrode 10, electrode installation.
B () WEDG processes
Hollow shaft motor 3 is pressed certain speed and is rotated, rotary motion is delivered to by connection mast 5 and often opens rotating shaft 6, often open rotating shaft 6 by straight pin 7 by power and Movement transmit to normally closed rotating shaft 8, normally closed rotating shaft 8 is arranged on clutch shaft bearing 2, and normally closed clamp drives wire electrode 10 continuous rotation.Swivel feeding mainshaft head mechanism 100 moves to fixed position, make wire electrode 10 and the relative motion of discharging grinding and paring of line electrode mechanism, electric discharge, complete WEDG processing, discharging grinding and paring of line electrode machined electrode silk 10 principle as shown in Figure 10, in figure, A is guider, B is line electrode, and C is the pulse power, and D is working solution.
(c) processing array micropore
Processing work moves to fixed position, and processing feeding slide block 21 drives whole swivel feeding mainshaft head mechanism 100, wire electrode 10 moves to Working position, by fixed routine servo processing micropore.
(d) wire electrode 10 loss balancing
When wire electrode 10 loss to a certain extent time, hollow shaft motor 3 forward to zero-bit stop.Creep feed part 22 drives often opens the axial required complementary range that moves up of clip portion, be arranged symmetrically with the first pushing-type electromagnet 11 and promote platen 12, platen 12 compresses the first return unit 14, the motive force of the first pushing-type electromagnet 11 to be passed to by glass tube 13 and often opens clamping piece 9 by platen 12, often open clamping piece 9 male cone (strobilus masculinus) and often open rotating shaft 6 inner conical surface and compress, realize often opening the closed with clamping electrode silk 10 of clip.
Then, second pushing-type electromagnet 16 is energized, and promotes link assembly, the thrust of vertical direction is converted to horizontal direction, promote normally closed clip depression bar 17 and overcome Compress Spring active force, normally closed clip is opened, and creep feed part 22 drives often to be opened clip portion and be axially moved down into home position, the second pushing-type electromagnet 16 power-off, normally closed clamp wire electrode 10, first pushing-type electromagnet 11 power-off, often opens clip portion and unclamps wire electrode 10, completes wire electrode 10 loss balancing.
E () is repeated above operating procedure and is completed WEDG mass capillary processing process, process as shown in Figure 8.
Below, the aperture process of carrying out without the need to WEDG of swivel feeding mainshaft head mechanism 100 is introduced.
A () electrode is installed
Be installed to by guider 15 on swivel feeding mainshaft head mechanism 100, proximity switch 4 is determined to rotate zero-bit, and hollow shaft motor 3 central shaft rotates to zero-bit.Second pushing-type electromagnet 16 is energized, and promote link assembly, the thrust of vertical direction is converted to horizontal direction, and promote normally closed clip depression bar 17 and overcome Compress Spring active force, normally closed clip is opened.Wire electrode 10 is put into from hollow shaft motor 3 top, wire electrode 10 is dropped through and often opens clamping piece 9 under gravity, finally arrive at guider 15, after wire electrode 10 stretches out guider 15 suitable distance, second pushing-type electromagnet 16 power-off, normally closed clip closed clamping wire electrode 10, electrode installation.
(b) processing array micropore
Processing work moves to fixed position, and processing feeding slide block 21 drives whole mainshaft mechanism, wire electrode 10 moves to Working position, by fixed routine servo processing micropore.
(c) wire electrode 10 loss balancing
When wire electrode 10 loss to a certain extent time, hollow shaft motor 3 forward to zero-bit stop.Creep feed part 22 drives often opens the axial required complementary range that moves up of clip portion, be arranged symmetrically with the first pushing-type electromagnet 11 and promote platen 12, platen 12 compresses the first return unit 14, the motive force of the first pushing-type electromagnet 11 to be passed to by glass tube 13 and often opens clamping piece 9 by platen 12, often open clamping piece 9 male cone (strobilus masculinus) and often open rotating shaft 6 inner conical surface and compress, realize often opening clamp wire electrode 10.
Then, second pushing-type electromagnet 16 is energized, and promotes link assembly, the thrust of vertical direction is converted to horizontal direction, promote normally closed clip depression bar 17 and overcome Compress Spring active force, normally closed clip is opened, and creep feed part 22 drives often to be opened clip portion and be axially moved down into home position, the second pushing-type electromagnet 16 power-off, normally closed clamp wire electrode 10, first pushing-type electromagnet 11 power-off, often opens clip portion and unclamps wire electrode 10, completes wire electrode 10 loss balancing.
D () is repeated above operating procedure and is completed aperture process without the need to WEDG, process as shown in Figure 9.
In sum, according to swivel feeding mainshaft head mechanism 100 of the invention process, be suitable for the micro EDM of line electric discharge grinding (WEDG), belong to micro-NTM technical field, towards the automation process requirements of mass micro-structure in commercial Application, wire electrode 10 on-line continuous of 100 μm can be less than for diameter or repeatedly repeat WEDG making demand.
Utilize swivel feeding mainshaft head mechanism 100, can the elongated thin wire electrode 10 to be repaired of clamped one time, the function compared with the creep feed of slender electrode silk 10, high-precision rotary, rotation round angle location can be realized, the wire electrode 10 repeatedly online WEDG demand that makes and use can be met, improve the online make efficiency of wire electrode 10 and automaticity, can be applicable to the batch-automated micro EDM of micro-structure.And, utilize this kind of swivel feeding mainshaft head mechanism 100, avoid the impact of rotary drive mechanism kinematic error on wire electrode 10 running accuracy, improve swivel feeding mainshaft head mechanism 100 make online for WEDG wire electrode 10 and for wire electrode 10 running accuracy during micro EDM, be conducive to improving wire electrode 10 and make precision and micro EDM precision online.In addition, in order to guarantee to rotate precision further, can also fine motor guiding mechanism 40 (with reference to Fig. 3) be set on processing feeding slide block 21.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, " axis ", " radial direction ", " circumference " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection, can also be communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (9)
1. be suitable for a micro EDM swivel feeding mainshaft head mechanism for line electric discharge grinding, it is characterized in that, comprising:
Support, described support comprises processing feeding slide block and creep feed part, and described creep feed part is located on described processing feeding slide block and relatively described processing feeding slide block is removable;
Hollow shaft motor and the first driven unit, described hollow shaft motor and described first driven unit are located on described creep feed part respectively;
Platen assembly, described platen assembly is connected with described hollow shaft motor and rotates to be driven by described hollow shaft motor, and described platen assembly has and is connected to drive by described first driven unit the moving member moved up and down with described first driven unit;
Often drive clip, described often open that clip comprises hollow often open rotating shaft and Chang Kai clamping piece, described upper end of often opening rotating shaft is connected with described platen assembly, described clamping piece of often opening is connected to make the described relative described rotating shaft of often opening of clamping piece of often opening can move up and down between open and closed positions by connecting tube with described moving member, in described closed position, described clamping piece of often opening coordinates with clamping electrode silk with described rotating shaft of often opening, and described connecting tube is communicated with the motor shaft of described hollow shaft motor;
Be provided with the clutch shaft bearing seat of clutch shaft bearing, described clutch shaft bearing seat is fixed on described processing feeding slide block;
Normally closed clip, described normally closed clip comprises the normally closed rotating shaft of hollow and normally closed clamping piece, described normally closed clamping piece is located at the lower end of described normally closed rotating shaft, the upper end of described normally closed rotating shaft coordinates with described clutch shaft bearing, chamber is limited in described normally closed rotating shaft, described often open rotating shaft lower end and described chamber be slidably matched and drive described normally closed rotating shaft to rotate, the lower end of described normally closed rotating shaft is provided with guider, and described wire electrode passes described guider and is clamped on described normally closed clamping piece;
Second driven unit, described second driven unit is located at and coordinates to control described normally closed clamping piece on described support or described clutch shaft bearing seat and with described normally closed clip and open or close.
2. the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding according to claim 1, it is characterized in that, described platen assembly comprises:
Shaft coupling, described shaft coupling is connected with the motor shaft of described hollow shaft motor;
Connector, described connector is fixed on the lower surface of described shaft coupling, and described upper end of often opening rotating shaft is fixed on described connector;
Platen, described platen is located on described connector movably to limit described moving member, the two ends of described connecting tube are separately fixed at described platen and describedly often open on clamping piece, and described first driven unit is connected with described platen to drive described platen to move up and down.
3. the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding according to claim 2, it is characterized in that, described platen is stretched out to extend in described shaft coupling in the upper end of described connecting tube.
4. the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding according to claim 1, it is characterized in that, also comprise the second bearing block, in described second bearing block, be provided with the second bearing, describedly often open rotating shaft and described second bearing fit.
5. the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding according to claim 2, it is characterized in that, described connector comprises: multiple connection mast, described multiple connection mast is located at respectively describedly often to be opened between rotating shaft and described shaft coupling, described platen is provided with multiple moving hole, described multiple moving hole is arranged with described multiple mast one_to_one corresponding that is connected, and each described moving hole moves cooperation with the corresponding described mast that is connected.
6. the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding according to claim 2, it is characterized in that, described first driven unit comprises the first pushing-type electromagnet and the first return unit, described first pushing-type electromagnet is connected to promote described platen and moves down with the roof of described platen, the two ends of described first return unit are connected with normal upwardly described platen with described rotating shaft of often opening with the diapire of described platen respectively.
7. the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding according to claim 1, it is characterized in that, described normally closed clamping piece comprises the first holder and the second holder, described first holder is fixed on described normally closed rotating shaft, and described second holder is located on described normally closed rotating shaft movably to coordinate with described first holder or to depart from;
Described second driven unit comprises:
Normally closed clip depression bar, described normally closed clip depression bar is located at movably on described normally closed rotating shaft and coordinates to clamp described wire electrode with described first holder often to promote described second holder;
Second pushing-type electromagnet, described second pushing-type electromagnet is fixed on described clutch shaft bearing seat, and the drive end of described second pushing-type electromagnet is provided with link assembly, and described link assembly comprises horizon bar;
Fixture, described fixture is fixed on described clutch shaft bearing seat, described horizon bar can be located on described fixture with moving horizontally, and drives described horizon bar to move described normally closed clip depression bar and described second holder are departed from towards described normally closed clip depression bar during described second pushing-type electromagnet energising;
Second return unit, described second return unit is connected with described fixture with described horizon bar often to drive described horizon bar to move towards the direction away from described normally closed clip depression bar respectively.
8. the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding according to claim 1, is characterized in that, be provided with insulation contiguous block between described clutch shaft bearing seat and described support.
9. the micro EDM swivel feeding mainshaft head mechanism being suitable for line electric discharge grinding according to claim 1, it is characterized in that, be provided with insulation tube in the motor shaft of described hollow shaft motor, described connecting tube is glass tube.
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| CN107962432B (en) * | 2018-01-09 | 2023-09-26 | 河南理工大学 | Clamping main shaft system for electrolytic grinding of thin disc workpieces |
| CN107962432A (en) * | 2018-01-09 | 2018-04-27 | 河南理工大学 | A kind of clamping axis system for electrochemical grinding thin discs class workpiece |
| CN110238467A (en) * | 2019-07-18 | 2019-09-17 | 清华大学无锡应用技术研究院 | The creep feed clip mechanism of electric machining micro-electrode and silk is worn into silk method |
| CN110587049A (en) * | 2019-10-25 | 2019-12-20 | 苏州电加工机床研究所有限公司 | Electric spark micro-hole machining spindle head with outer-coated liquid beam holding wire |
| CN110587049B (en) * | 2019-10-25 | 2024-05-03 | 苏州电加工机床研究所有限公司 | Electric spark micro-hole machining spindle head with liquid bundle wrapping wire |
| CN111992831A (en) * | 2020-09-24 | 2020-11-27 | 清华大学无锡应用技术研究院 | Online preparation method and system for micro tool electrode |
| CN113042837A (en) * | 2021-03-25 | 2021-06-29 | 北京石油化工学院 | Fine electrode wire feeding mechanism |
| CN113664304A (en) * | 2021-09-18 | 2021-11-19 | 上海交通大学 | Grinding and high-speed electric spark in-situ composite processing device |
| CN115464873B (en) * | 2022-09-16 | 2023-05-12 | 珠海市协正智能装备有限公司 | Pressure maintaining device, attaching pressure maintaining device and pressure maintaining method |
| CN115464873A (en) * | 2022-09-16 | 2022-12-13 | 珠海市协正智能装备有限公司 | Pressure maintaining device, attaching pressure maintaining device and pressure maintaining method |
| CN115476007A (en) * | 2022-09-20 | 2022-12-16 | 苏州亚马森机床有限公司 | Pneumatic rotating head |
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