CN101966614B - Digital preparation device for bunched forming electrode and preparation method thereof - Google Patents
Digital preparation device for bunched forming electrode and preparation method thereof Download PDFInfo
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- CN101966614B CN101966614B CN2010102681786A CN201010268178A CN101966614B CN 101966614 B CN101966614 B CN 101966614B CN 2010102681786 A CN2010102681786 A CN 2010102681786A CN 201010268178 A CN201010268178 A CN 201010268178A CN 101966614 B CN101966614 B CN 101966614B
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Abstract
The invention relates to a digital preparation device for a bunched forming electrode and a preparation method thereof in the technical field of forming electrodes for electric spark machining. The digital preparation device comprises a positioning top pin, an electrode unit, a clamping device, a beam frame device, a positioning material, a discharging device, a bracket and a clamp interface. After the end surface frame and the moulding surface frame of an electrode to be manufactured are discretized, a worktable surface and a main shaft of a machine tool are used for constructing a discretization moulding surface of an objective moulding surface. The invention can conveniently, practically and reliably prepare the bunched forming electrode with arbitrary objective three-dimensional moulding surfaces and end surfaces.
Description
Technical field
That the present invention relates to is device and the preparation method of a kind of spark machined with the shaped electrode technical field, specifically is digitlization preparation facilities of a kind of clustered shaped electrode and preparation method thereof.
Background technology
Spark machined is a kind of special processing technology that is widely used in industries such as Aeronautics and Astronautics, automobile, electronics, mould, light industry; Galvano-cautery phenomenon when it is based on pulse feature spark discharge between instrument and the workpiece (positive and negative electrode) is lost except that excess metal; To reach the processing method of part preliminary dimension, shape and surface quality; It is little to have macroscopical active force, and characteristics such as noncontact processing are particularly suitable for the processing of difficult-to-machine material and complicated shape part.The part that wherein has the complicated shape profile adopts shaped electrode to process usually; There are very many deficiencies in the tradition shaped electrode, as: 1, because electrode shape is complicated, and profile changes with the difference of workpiece; Be unfavorable for batch machining; Manufacturing process needs more man-hour, and process equipment is expensive, and the technological level of processing personnel is also had higher requirements; 2, need to remove quite a few material in the electrode manufacturing process, and export license be to just changing to a certain degree, recycling rate of waterused is low, and the waste resource and the energy do not meet the trend of green manufacturing; 3, need make a plurality of electrodes during processing and forming and be used for changing,, cause the electrode cost to account for about half of whole machining process expense because each electrode cost of manufacture is high; 4, each shaped electrode can only have one road power supply disruptive discharge at every turn, adds the existence between the discharge arteries and veins, makes interior material removing rate of its unit interval not high; When 5, the shaped electrode area increased, interelectrode parasitic capacitance also increased, and made each pulse discharging energy increase, and had reduced the quality of finished surface; 6, the working solution of traditional spark machined can only get into machining area from the side gap of electrode, need select suitable machining gap and parameter for use even need often have the action of lifting electrode to be beneficial to chip removal, reduces working (machining) efficiency.
These deficiencies of the prior art and defective fully show; Reduce the Production Time of spark-erosion sinking machined electrode; Reduce shaped electrode cost of manufacture and difficulty; Realize the mass production of shaping machined electrode, improve the utilization rate of electrode material, improving working (machining) efficiency and speed is to improve the necessary means of the market competitiveness of spark machined greatly.
Through the retrieval of prior art is found, Chinese patent number is ZL200510024579.6, Granted publication day 2007-6-13; Put down in writing a kind of " internal liquid-flushing cluster shaping electrode for electrospark "; The technology summary of this patent is: a kind of internal liquid-flushing cluster shaping electrode for electrospark that belongs to the special processing technology field the present invention includes: electrode unit and electrode base, and the bottom of electrode base is fixed; And the assembly of support electrode unit; Described electrode unit is bar-shaped object, and described electrode base comprises: electrode holder interface, base body, clamping module, and the openend of base body connects the clamping module; Electrode holder interface bottom is integral type with base body or is detachable; When being detachable when electrode holder interface bottom with base body, the blind end of electrode holder interface and base body is through being threaded or being connected, and is inserted and secured on base body bottom the electrode holder interface.But the only conceptual architectural feature of introducing bundling electrode of this prior art does not provide and how to realize preparing the concrete grammar with target complex three-dimensional end face profile bundling electrode.
Summary of the invention
The present invention is directed to the above-mentioned deficiency that prior art exists, digitlization preparation facilities of a kind of clustered shaped electrode and preparation method thereof is provided, can realize preparing clustered shaped electrode easily, practically and reliably with the three-dimensional profile end face of arbitrary target.
The present invention realizes through following technical scheme:
The present invention relates to a kind of digitlization preparation facilities of clustered shaped electrode; Locate thimble, electrode unit, fastening larynx hoop, electrode chuck, restraint wide device, locator material, discharge device, support and anchor clamps interface; Wherein: the location thimble links to each other with machine tool chief axis, and fastening larynx hoop is connected with the electrode holder cover, and the electrode chuck is connected with support upper end hoop; Behind bundling electrode digitlization position fixing process, be connected with the anchor clamps interface at non-spark machined end face one end of bundling electrode; It is inner that locator material is nested in the wide device of bundle, and the upper end of support is connected with the electrode holder cover, and the lower end contacts with discharge device and platen face mutually; The electrode holder interface is connected with machine tool chief axis with the electrode chuck respectively, and the side that discharge device and locator material contact is provided with network structure.
Described location thimble is for becoming the diameter cylindrical structure, and wherein the bigger end of diameter links to each other with machine tool chief axis, and the other end is positioned at the profile of electrode unit end face, is used to contact feeding target electrode unit.
Described fastening larynx hoop is that open annular is jacket structured, is provided with bolt interface and corresponding bolt at the openend of fastening larynx hoop, can realize radially tightening up of annular chuck through the precession bolt.
The inboard profile of described electrode chuck and the electrode unit assembly of bundling electrode to be prepared are complementary, section outer-hexagonal structure in the middle of the outside of this inboard profile, and the two ends of electrode chuck along the circumferential direction evenly are provided with retraction slot.
The wide device of described bundle is a hollow annular structure, and this restraints the inboard profile of wide device and the outline of bundling electrode to be prepared is complementary to realize the filtration to electrode unit, and the outside one end of restrainting wide device is provided with helicitic texture, and the other end is the regular hexagon profile.
Described discharge device one end is provided with internal thread, and the other end is provided with opening cavity, and the outside one end of discharge device is the regular hexagon structure, and its other end is for being provided with screw thread.
The upper end of described support is provided with the hoop of band female thread structure, is used for and being connected of electrode chuck, and the bottom surface, lower end of support is provided with the thread groove structure, is used for fixing discharge device, between hoop and bottom surface, connects through three ribs that are 120 degree angles.
The digitlization that the present invention relates to said apparatus prepares the method for clustered shaped electrode, may further comprise the steps:
The first step, the end profile that will wait to make electrode and machined surface profile carry out discretization to be handled, and obtains the discrete space coordinate figure of end profile and machined surface profile;
Second step, tighten up the electrode chuck through fastening larynx hoop and come clamping, make up the electrode unit assembly; The electrode chuck is realized the integral body location to the electrode unit assembly through linking to each other with the upper end hoop of support; End face to be formed one end with the electrode unit assembly contacts with the locator material that is in the wide device of bundle then; Locator material other end and discharge device contact, and discharge device is connected with the bottom surface, lower end of support, and the bottom surface, lower end of support is connected with the platen face;
The 3rd step, the big cylinder end that will locate thimble are connected with machine tool chief axis; Unclamping fastening larynx hoop makes electrode unit accomplish axial location through locator material fully; The thimble end contacts with the object electrode unit that needs the location mutually; The discrete space coordinate figure that obtains according to the first step drives the lathe work top and main shaft moves, realize the location thimble to the related electrode cell location to corresponding spatial value position, and through locator material to keeping the position location with the electrode unit of having good positioning; After the space orientation of accomplishing all electrode units, the electrode unit assembly constructs the discrete surface of target profile;
The 4th step, conversion electrode chuck tighten up the position, adopt another fastening larynx hoop to tighten up the electrode chuck other end, and unclamp former crimped end, utilize the former pinching end screw thread of electrode chuck to be connected with the anchor clamps interface, realize the digitlization preparation of target profile clustered shaped electrode.
Described discretization is handled and is meant: is that unit approach with the electrode unit end profile with the continuous end face profile of shaped electrode after through the three-dimensional coordinate digitlization; And use by the common approximate profile that makes up of the end face of these electrode units and replace former continuous profile, thereby realize the discretization of continuous profile is handled.
Beneficial effect of the present invention comprises: given full play to shaped electrode discretization that bundling electrode will the have monoblock type complex three-dimensional profile electrode preparation characteristics that a large amount of stick electrode unit boundling forms of serving as reasons; Through CAD software with the electrode profile that will prepare be that the unit carries out discretization with the electrode unit end profile that makes up bundling electrode; And obtain the corresponding spatial value of one group of electrode profile discrete unit; Realize locating the interlock feeding of thimble and electrode unit assembly according to this group coordinate figure driving machine tool chief axis and workbench; Through the location thimble target of counter electrode unit is contacted feeding; Make the operative end surface of counter electrode unit be fed into the additional space coordinate, utilize this digitized preparation means, convenient, realized having the preparation of the clustered shaped electrode of the three-dimensional profile of arbitrary target compactly.The method that this digitlization prepares clustered shaped electrode has fully represented bundling electrode in the electrode preparation time of reducing spark-erosion sinking processing, reduces the advantage of shaped electrode cost of manufacture and manufacture difficulty aspect.
Description of drawings
Fig. 1 is clustered shaped electrode digitlization preparation method's a lathe operation sketch map.
Fig. 2 is the perspective exploded view of clustered shaped electrode digitlization preparation method device for carrying out said.
Fig. 3 is the clustered shaped electrode sketch map of digitlization preparation.
The specific embodiment
Elaborate in the face of embodiments of the invention down, present embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
Present embodiment has preparation the clustered shaped electrode of spherical tank end face profile of cylinder machining profile and the radius 16mm degree of depth 5mm of 10mm axial depth, Φ 22.5mm.
Like Fig. 1-shown in Figure 3; Present embodiment comprises: the wide device of location thimble 1, electrode unit 2, fastening larynx hoop 3, electrode chuck 4, bundle 5, locator material 6, discharge device 7, support 8 and anchor clamps interface 9, and wherein: location thimble 1 links to each other with machine tool chief axis, and fastening larynx hoop 3 is connected with electrode chuck 4; Electrode chuck 4 is connected with support 8 upper end hoops; Behind bundling electrode digitlization position fixing process, be connected with anchor clamps interface 9 at non-spark machined end face one end of bundling electrode, locator material 6 is nested in bundle wide device 5 inside, when electrode unit 2 is done the time spent receiving centripetal force; Electrode unit 2 feedings get in the locator material 6 and supplant locator material; Discharge device 7 has network structure with the mask that locator material 6 contacts, and the upper end hoop of support 8 is connected with electrode chuck 4, and bottom surface, lower end and discharge device 7 contact; Support 8 contacts with the platen face through its bottom surface and is connected, and electrode holder interface 9 is connected with machine tool chief axis with electrode chuck 4 respectively.
Described location thimble 1 one ends are diameter 5mm cylinder, are used for linking to each other with machine tool chief axis, and other end diameter 1.0mm cylinder is used to contact feeding target electrode unit 2.
It is the hollow rod-shape electrode of 1.5 (0.5) mm that described electrode unit 2 is selected outer (interior) footpath.
Described fastening larynx hoop 3 is the open annular chuck, is provided with the bolt interface at openend, and is furnished with bolt, can realize radially tightening up of annular chuck through the precession bolt, and its scope of tightening up is Φ 38mm-Φ 30mm.
The inboard profile of described electrode chuck 4 is the regular hexagon profile of length of side 16mm; Section outer-hexagonal structure in the middle of the outside; Be convenient to spanner to its whole precession; The chuck pinching end is evenly offered the retraction slot of width 1.4mm, degree of depth 15mm in its interior profile hexagonal sideline, edge, two ends; Be used for fastening larynx hoop 3 and tighten up this port of chuck to realize the clamping to electrode unit 2 assemblys, it is provided with M36 between retraction slot and outer-hexagonal structure helicitic texture is used to connect support 8 upper end hoops and anchor clamps interface 9.
The wide device 5 of described bundle has hollow annular structure; Its inboard profile is the hole of Φ 22.5mm; Can realize the filtration to the outer electrode unit 2 of pore diameter range, its outside one end has the helicitic texture of M36, is used to connect discharge device 7; Its other end becomes the regular hexagon profile, and the instrument of being convenient to is to its clamping and location.
Described locator material 6 is the column structure of external diameter Φ 22.5mm, can fill up the wide device of bundle 5 inside fully.
Said discharge device 7 one ends have the internal thread of M36, are used for and bundle being connected of wide device 5, and are provided with network structure at interlude; Being used for the fixing and discharge of locator material 6, is opening cavity at the other end, is used to store the locator material 6 of draining; Its outside one end is the regular hexagon structure; So that tool holding, its other end is the helicitic texture that is provided with M40, is used for and being connected of support 8 bottom surfaces.
Described support 8 its upper end hoops are provided with the female thread structure of M36, are used for and being connected of electrode chuck 3, and its bottom surface, lower end has the thread groove structure of M40, is used for fixing discharge device 7, between hoop and bottom surface, connects through three ribs that are 120 degree angles.
Shown anchor clamps interface 9 one end inboards are provided with the opening cavity of the internal thread with M36; Be used for being threaded with electrode chuck 3, its outside has the regular hexagon profile, is convenient to tool holding; Its other end is the cylindrical structure of Φ 20mm, is used for being connected with machine tool chief axis.
The specific embodiment step of present embodiment is following:
The first step, in CAD software, draw spherical tank profile electrode to be made; With electrode unit 2 end faces is that the unit approaches this profile; Obtain counter electrode unit 2 the relative tertiary location coordinate figure (x, y, z); And every group of axial coordinate value z added the axial depth of 10mm, thereby obtain final discrete space set of coordinate values.
Second step, tighten up electrode chuck 4 through fastening larynx hoop 3 and come clamping, make up the electrode unit assembly; Electrode chuck 4 is realized the integral body location to electrode unit 2 assemblys through linking to each other with the upper end hoop of support 8; End face to be formed one end with electrode unit 2 assemblys contacts with the locator material 6 that is in the wide device 5 of bundle then; Locator material 6 other ends and discharge device 7 contact, and discharge device 7 is connected with the bottom surface, lower end of support 8, and the bottom surface, lower end of support 8 is connected with the platen face.
The 3rd step, the big cylinder end that will locate thimble 1 are connected with machine tool chief axis; Unclamping fastening larynx hoop 3 makes electrode unit 2 accomplish axial location through locator material 6 fully; The thimble end contacts with the object electrode unit 2 that needs the location mutually; The discrete space coordinate figure driving lathe work top and the main shaft that obtain according to the first step move, and realize that 1 pair of related electrode unit 2 of thimble, location navigates to corresponding spatial value position, and through 6 pairs of electrode unit 2 maintenance position locations to have good positioning of locator material; After the space orientation of accomplishing all electrode units 2, electrode unit 2 assemblys construct the discrete surface of target profile.
The 4th step, conversion electrode chuck 4 tighten up the position; Adopt another fastening larynx hoop 3 to tighten up electrode chuck 4 other ends; And unclamp former crimped end, and utilize electrode chuck 4 former pinching end screw threads to be connected with anchor clamps interface 9, realize the digitlization preparation of target profile clustered shaped electrode.
Claims (2)
1. clustered shaped electrode digitlization preparation facilities; Comprise: locate thimble, electrode unit, fastening larynx hoop, electrode chuck, restraint wide device, locator material, discharge device, support and anchor clamps interface; Wherein: the location thimble links to each other with machine tool chief axis, and fastening larynx hoop is connected with the electrode holder cover, and the electrode chuck is connected with support upper end hoop; Electrode holder is connected with the anchor clamps interface at non-spark machined end face one end of bundling electrode after being enclosed within bundling electrode digitlization position fixing process; It is inner that locator material is nested in the wide device of bundle, and the upper end of support is connected with the electrode holder cover, and the lower end contacts with discharge device and platen face mutually; The anchor clamps interface is connected with machine tool chief axis with the electrode chuck respectively, and the side that discharge device and locator material contact is provided with network structure;
Described location thimble is for becoming the diameter cylindrical structure, and wherein the bigger end of diameter links to each other with machine tool chief axis, and the other end is positioned at the profile of electrode unit end face, is used to contact feeding target electrode unit;
Described fastening larynx hoop is that open annular is jacket structured, is provided with bolt interface and corresponding bolt at the openend of fastening larynx hoop, can realize radially tightening up of annular chuck through the precession bolt;
The inboard profile of described electrode chuck and the electrode unit assembly of bundling electrode to be prepared are complementary, and the outside interlude of this inboard profile is the outer-hexagonal structure, and the two ends of electrode chuck along the circumferential direction evenly are provided with retraction slot;
The wide device of described bundle is a hollow annular structure, and this restraints the inboard profile of wide device and the outline of bundling electrode to be prepared is complementary to realize the filtration to electrode unit, and the outside one end of restrainting wide device is provided with helicitic texture, and the other end is the regular hexagon profile;
Described discharge device one end is provided with internal thread, and the other end is provided with opening cavity, and the outside one end of discharge device is the regular hexagon structure, and its other end is for being provided with screw thread;
The upper end of described support is provided with the said hoop of band female thread structure; Be used for and being connected of electrode chuck; The bottom surface, lower end of support is provided with the thread groove structure, is used for fixing discharge device, between said hoop and bottom surface, said lower end, connects through three ribs that are 120 degree angles.
One kind according to claim 1 said device digitlization prepares the method for clustered shaped electrode, it is characterized in that, may further comprise the steps:
The first step, the end profile that will wait to make electrode and machined surface profile carry out discretization to be handled, and obtains the discrete space coordinate figure of end profile and machined surface profile;
Second step, tighten up the electrode chuck through fastening larynx hoop and come clamping, make up the electrode unit assembly; The electrode chuck is realized the integral body location to the electrode unit assembly through linking to each other with the upper end hoop of support; End face to be formed one end with the electrode unit assembly contacts with the locator material that is in the wide device of bundle then; Locator material other end and discharge device contact, and discharge device is connected with the bottom surface, lower end of support, and the bottom surface, lower end of support is connected with the platen face;
The 3rd step, the big cylinder end that will locate thimble are connected with machine tool chief axis; Unclamping fastening larynx hoop makes electrode unit accomplish axial location through locator material fully; The thimble end contacts with the object electrode unit that needs the location mutually; The discrete space coordinate figure driving lathe work top and the main shaft that obtain according to the first step move, and realize that the location thimble arrives corresponding spatial value position to the related electrode cell location, and through locator material the electrode unit of having had good positioning are kept the position location; After the space orientation of accomplishing all electrode units, the electrode unit assembly constructs the discrete surface of target profile;
The 4th step, conversion electrode chuck tighten up the position, adopt another fastening larynx hoop to tighten up the electrode chuck other end, and unclamp former crimped end, utilize the former pinching end screw thread of electrode chuck to be connected with the anchor clamps interface, realize the digitlization preparation of target profile clustered shaped electrode;
Described discretization is handled and is meant: is that unit approach with the electrode unit end profile with the continuous end face profile of shaped electrode after through the three-dimensional coordinate digitlization; And use by the common approximate profile that makes up of the end face of these electrode units and replace former continuous profile, thereby realize the discretization of continuous profile is handled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102681786A CN101966614B (en) | 2010-09-02 | 2010-09-02 | Digital preparation device for bunched forming electrode and preparation method thereof |
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| CN2010102681786A CN101966614B (en) | 2010-09-02 | 2010-09-02 | Digital preparation device for bunched forming electrode and preparation method thereof |
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| CN101966614A CN101966614A (en) | 2011-02-09 |
| CN101966614B true CN101966614B (en) | 2012-05-09 |
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| CN109848649B (en) * | 2019-01-28 | 2021-01-08 | 昆山明佰精密模塑有限公司 | Finish machining method for plastic mold |
| CN110230082B (en) * | 2019-07-18 | 2021-06-25 | 烟台大学 | Device and method for preparing cluster cathode micro-arc oxidation film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6284920A (en) * | 1985-10-09 | 1987-04-18 | Fanuc Ltd | Electric discharge machining electrode |
| JPH05253754A (en) * | 1992-03-09 | 1993-10-05 | Nippondenso Co Ltd | Electrode for electric discharge machining |
| CN2154760Y (en) * | 1992-06-30 | 1994-02-02 | 上海工程技术大学 | Combined electrode clamp |
| CN1320975C (en) * | 2005-03-24 | 2007-06-13 | 上海交通大学 | Internal liquid-flushing cluster shaping electrode for electrospark machining |
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