CN106238842A - Rotating mechanism and board for low-speed wire cutting linear cutter micro tool electrode - Google Patents

Rotating mechanism and board for low-speed wire cutting linear cutter micro tool electrode Download PDF

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Publication number
CN106238842A
CN106238842A CN201610851598.4A CN201610851598A CN106238842A CN 106238842 A CN106238842 A CN 106238842A CN 201610851598 A CN201610851598 A CN 201610851598A CN 106238842 A CN106238842 A CN 106238842A
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China
Prior art keywords
main shaft
bearing
welding
rotating mechanism
ball
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CN201610851598.4A
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CN106238842B (en
Inventor
巩亚东
孙瑶
程军
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Northeastern University China
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Northeastern University China
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Publication of CN106238842A publication Critical patent/CN106238842A/en
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Publication of CN106238842B publication Critical patent/CN106238842B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING 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
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02Wire-cutting
    • B23H7/08Wire electrodes
    • B23H7/10Supporting, winding or electrical connection of wire-electrode
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING 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
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02Wire-cutting

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

For rotating mechanism and the board of low-speed wire cutting linear cutter micro tool electrode, described rotating mechanism includes: welding support, motor, connecting plate for electric motor, the first gear, the second gear, cog belt, main shaft room, main shaft, precision bearing, precision drill chuck head, bearing (ball) cover, sealing ring and gasket seal;Connecting plate for electric motor is arranged on the welding door-plate of welding support, and motor is arranged on connecting plate for electric motor and is connected with the first gear;Cog belt and the first gear and the second gear engage;Main shaft room is arranged on the welding base plate of welding support, main shaft support is indoor at main shaft, bearing (ball) cover is installed at the two ends of main shaft room, it is provided with gasket seal between bearing (ball) cover and main shaft room, it is provided with seal groove in the axis hole of bearing (ball) cover, installing sealing ring in seal groove, one end of main shaft is connected with the second gear, and the other end is connected with precision drill chuck head.The invention enables the low speed wire electrical discharge machine platform being mounted with rotating mechanism can process the micro tool with rotary structure.

Description

Rotating mechanism and board for low-speed wire cutting linear cutter micro tool electrode
Technical field
The present invention relates to Electric Discharge Wire-cutting Technology field, fine for low-speed wire cutting linear cutter particularly to one The rotating mechanism of tool-electrode and board.
Background technology
Along with micromechanics and MEMS (MEMS, Micro-Electro-Mechanical System) step into Practical stage, in the urgent need to producing the micro tool of variously-shaped complexity, the most micro-milling cutter, microprobe and micro-multidiameter etc. Micro tool realizes micropore, the processing of microflute etc., or use micro tool as the electrode in edm process, because of The high accuracy of this micro tool and high-quality prepare the development for micro-electronic mechanical system technique will produce important promotion And facilitation.
The galvanic action ablation conduction that spark machined produces when being to utilize the two interpolar pulsed discharge being immersed in working solution The special process method of material, adds man-hour, wire electrode and workpiece and connects the two poles of the earth of the pulse power respectively, and wire electrode continuous moving is right Workpiece carries out pulse spark electric discharge, corrodes workpiece, makes work piece cut molding.Spark machined is with its noncontact, not strong by material Degree and hardness limit and can realize the intended advantage removing unit by the method controlling discharge energy, at fine zero The manufacture field of part has the advantage of uniqueness.
Electric spark grinding and cube electrode electric spark grinding are the Conventional processing methods of micro tool, but electric spark grinding equipment Expensive and working (machining) efficiency is low, be only limitted to process the micro rod with simple rotary structure;Cube electrode electric spark grinds Cut that to have device simple, low cost and the advantage being easily installed, but due to the loss of cube electrode and the processing gap meeting of change Make the machining accuracy of micro tool relatively low and tapering easily occurs, being unfavorable for controlling the diameter of micro tool.
WEDM platform has the feature of processing high efficient and flexible, and WEDM platform includes HS-WEDM Cutting machine and low speed wire electrical discharge machine platform, problem of HS-WEDM platform is liquid, therefore can be by HS-WEDM Cutting machine carries out transforming and enables to process the workpiece with revolving structure, i.e. realizes the processing of micro tool, but at a high speed Wire-moving cutting machine itself there is drawback, the precision of such as control system is low, wire electrode is reused, and can cause and be added The workpiece of work cannot arrive below 100 μm in size, and the size of the micro tool therefore can processed can be restricted, Er Qiejia The precision of the micro tool that work goes out is relatively low, and surface quality is poor.The multiple cutting of low speed wire electrical discharge machine platform and high-precision The control system of degree ensure that the quality of processing part, but low speed unidirectional wire WEDM platform is five-axle linkage, Ruled surface and the processing of complicated ruled surface can be realized, but can not realize that there is the fine work of the revolving body non-fully run through Tool or local have the tool processes of micro-revolving structure, and low speed wire electrical discharge machine platform is immersion type, whole processed Journey is carried out inside working solution, and this micro tool making the processing of low speed wire electrical discharge machine platform have revolving structure faces sternness Challenge.
Summary of the invention
In order to solve to use present in prior art the relatively costly of electric spark grinding apparatus processing micro tool and The micro tool size using the problem of HS-WEDM platform of repacking to process is unable to reach below 100 μm, and there is processing The problem that micro tool precision is low, surface quality is poor gone out, embodiments provides a kind of for the cutting of low-speed wire cutting line The rotating mechanism of processing micro tool electrode, described rotating mechanism includes:
Welding support, motor, connecting plate for electric motor, the first gear, the second gear, cog belt, main shaft room, main shaft, two essences Close bearing, precision drill chuck head, two bearing (ball) covers, sealing ring and gasket seal;
Welding support includes welding door-plate and welding base plate, and welding door-plate, with to weld base plate vertical, weld door-plate and is provided with Run through the cell body of welding door-plate thickness;
Connecting plate for electric motor is arranged on described welding door-plate, and connecting plate for electric motor is provided with through hole, and motor is arranged on motor even On fishplate bar and the output shaft of motor is through the connection of through hole and the first gear;
Cog belt is meshed with the first gear and the second gear respectively, and the diameter of the first gear is straight less than the second gear Footpath;
Main shaft room is arranged on described welding base plate, and the two ends of main shaft are respectively supported on described main shaft by a precision bearing Indoor, the two ends of main shaft room are respectively installed a bearing (ball) cover, are equipped with a sealing gasket between each bearing (ball) cover and main shaft room Sheet, each bearing (ball) cover is equipped with an axis hole, is provided with at least two seals groove in each axis hole, installs in each seal groove One sealing ring, one end of main shaft sequentially passes through the axis hole on a bearing (ball) cover and the cell body on described welding door-plate and Two gears connect, and the other end is connected through the axis hole on another bearing (ball) cover with precision drill chuck head, and described precision drill chuck head is used In installing micro tool matrix.
Described welding support also includes that two block welding gussets, two block welding gussets are vertically fixed on the two of described welding door-plate Side, and every block welding gusset is also with described to weld base plate vertical.
Described connecting plate for electric motor is that to same direction, bending forms by the two ends of one flat plate, and described connecting plate for electric motor includes Daughter board fixed by first support, daughter board fixed by the second support and daughter board fixed by motor;
Motor is fixed daughter board and is fixed daughter board and the second support is fixed between daughter board at the first support, and motor is fixed on daughter board Be provided with described through hole, described motor be arranged on motor fix on daughter board and described motor output shaft through described through hole with described First gear connects;
Daughter board fixed by first support and the second support is fixed and is equipped with strip hole on daughter board, by screw bolt passes first Support fixes the strip hole on daughter board and described welding door-plate, and is fixed on daughter board by screw bolt passes the second support Strip hole and described welding door-plate.
Described main shaft room includes base plate connecting plate and the main shaft cavity being positioned on base plate connecting plate, and main shaft cavity is positioned at base plate The centre of connecting plate;
Base plate connecting plate is arranged on described welding base plate by bolt;
A spindle mounting hole, two bearing mounting holes and two bearing (ball) cover installing holes, main shaft it is provided with in main shaft cavity The two ends of installing hole respectively connect with a bearing mounting hole, and each bearing mounting hole all connects with a bearing (ball) cover installing hole;
One described precision bearing of each installation in each bearing mounting hole, each installation one in each bearing (ball) cover installing hole Described bearing (ball) cover, described main shaft is positioned at described spindle mounting hole, and the two ends of described main shaft all sequentially pass through described in one Precision bearing and the axis hole of a described bearing (ball) cover.
One end of described main shaft is provided with flat key groove, in flat key groove install flat key, one end of described main shaft by flat key with Described second gear connects.
One end of described main shaft is provided with conduction brush link slot, for being connected with conduction brush.
Described main shaft room, described main shaft and described bearing (ball) cover all scribble corrosion-resistant underwater paint.
The material of described cog belt is polyurethane.
On the other hand, embodiments provide a kind of low speed wire electrical discharge machine platform, whirler described in described board Structure;
The welding base plate of described rotating mechanism is arranged on the workbench of described board, and can be in level together with workbench Feed motion is done on direction.
Described board also includes conduction brush pressure strip, Change-over frame and conduction brush;
Conduction brush is welded on described conduction brush pressure strip and conduction brush is connected with the conduction brush link slot of described main shaft, institute Stating together with conduction brush pressure strip is welded and fixed with one end of described Change-over frame, the other end of described Change-over frame passes through bolt and institute State connecting plate for electric motor to be fixed together.
In embodiments of the present invention, by designing a kind of rotation for low-speed wire cutting linear cutter micro tool electrode Mechanism, and this rotating mechanism is arranged on the workbench of low speed wire electrical discharge machine platform, by micro tool base to be processed Body is arranged on the precision drill chuck head of rotating mechanism, and this rotating mechanism is doing feed motion in the horizontal direction along with workbench Simultaneously micro tool matrix can be driven to rotate, the wire electrode of low speed wire electrical discharge machine platform simultaneously vertical direction to Lower motion, micro tool matrix is as the positive pole of spark machined, and wire electrode is as the negative pole of spark machined, so that low Speed wire-moving cutting machine can process to be had rotary structure or locally has the micro tool of revolving structure, processes Micro tool can be used to the micro tool electrode as spark machined, it is possible to according to practical situation, it is carried out surface Use as fine cutter after reason;For electric spark grinding equipment, it is mounted with the low-speed wire cutting line cutting of rotating mechanism The cost of board is the cheapest, and be mounted with the low speed wire electrical discharge machine platform of rotating mechanism can process multiple have multiple The micro tool of miscellaneous revolving structure;For the problem of HS-WEDM platform of transformation, it is mounted with the low speed of rotating mechanism Wire-moving cutting machine can process that diameter is less, surface quality is more preferable, the higher micro tool of precision.Wherein, whirler The main shaft room of structure forms a cavity closed under the effect of gasket seal and sealing ring, and therefore working solution cannot be introduced into The precision bearing of main shaft indoor corrosion resistant support main shaft, it is ensured that the installation accuracy of main shaft, and then ensure that the processing of micro tool Precision.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings Accompanying drawing.
Fig. 1 is the rotating mechanism for low-speed wire cutting linear cutter micro tool electrode that the embodiment of the present invention one provides Structural scheme of mechanism;
Fig. 2 is the structural representation of the welding support that the embodiment of the present invention one provides;
Fig. 3 is being arranged on the workbench of low speed wire electrical discharge machine platform by rotating mechanism of the embodiment of the present invention one offer Side view;
Fig. 4 is being arranged on the workbench of low speed wire electrical discharge machine platform by rotating mechanism of the embodiment of the present invention one offer Sectional view;
Fig. 5 is the structural representation of the connecting plate for electric motor that the embodiment of the present invention one provides;
Fig. 6 is the structural representation of the welding support that the embodiment of the present invention one provides;
Fig. 7 is the embodiment of the present invention one and the low speed wire electrical discharge machine platform being mounted with rotating mechanism of embodiment two offer Structural representation;
Fig. 8 is the top view of Fig. 3;
Fig. 9 is the left view of Fig. 3;
Figure 10 is the structural representation of the main shaft room that the embodiment of the present invention one provides;
Figure 11 is the sectional view of the main shaft room that the embodiment of the present invention one provides;
Figure 12 is the structural representation of the main shaft that the embodiment of the present invention one provides;
Figure 13 is conduction brush, conduction brush connecting plate and the connection diagram of Change-over frame that the embodiment of the present invention one provides;
Figure 14 is the structural representation of the conduction brush connecting plate that the embodiment of the present invention one provides.
Wherein,
1 welding support, 101 welding door-plates, 102 welding base plates, 103 welding gussets;2 motors;3 connecting plate for electric motor, 31 Daughter board fixed by one support, and daughter board fixed by 32 second supports, and daughter board fixed by 33 motors;4 first gears;5 second gears;6 cog belts; 7 main shaft rooms, 71 base plate connecting plates, 72 main shaft cavitys;8 main shafts, 81 flat key grooves, 82 conduction brush link slots;9 precision bearings;10 essences Close drill chuck;11 bearing (ball) covers;12 sealing rings;13 micro tool matrixes;14 workbench;15 conduction brush pressure strips, 151 welding are recessed Groove;16 Change-over frames;17 conduction brush;18 wire electrodes;
Cell body on A welding door-plate;Through hole on B connecting plate for electric motor;Axis hole on C bearing (ball) cover, close in C1 axis hole Sealing groove;D spindle mounting hole;E bearing mounting hole;F bearing (ball) cover installing hole.
Detailed description of the invention
In order to solve to use present in prior art the relatively costly of electric spark grinding apparatus processing micro tool and The micro tool size that processes of problem of HS-WEDM platform using repacking is unable to reach below 100 μm, and process The problem that micro tool precision is low, surface quality is poor, embodiments provides a kind of for low-speed wire cutting linear cutter The rotating mechanism of micro tool electrode, as it is shown in figure 1, this rotating mechanism includes:
Welding support 1, motor 2, connecting plate for electric motor the 3, first gear the 4, second gear 5, cog belt 6, main shaft room 7, main shaft 8, two precision bearings 9,10, two bearing (ball) covers 11 of precision drill chuck head, sealing ring 12 and gasket seal;
Seeing Fig. 1 and Fig. 2, welding support 1 includes welding door-plate 101 and welding base plate 102, welds door-plate 101 and welds Base plate 102 is vertical, and welding door-plate 101 is provided with the cell body A running through welding door-plate 101 thickness;
Seeing Fig. 3, Fig. 4 and Fig. 5, connecting plate for electric motor 3 is arranged on welding door-plate 101, and connecting plate for electric motor 3 is provided with through hole B, motor 2 is arranged on connecting plate for electric motor 3 and the output shaft of motor 2 connects through through hole B and the first gear 4;
Seeing Fig. 1, cog belt 6 is meshed with the first gear 4 and the second gear 5 respectively, and the diameter of the first gear 4 is less than the The diameter of two gears 5;
Seeing Fig. 1 and Fig. 4, main shaft room 7 is arranged on welding base plate 102, and the two ends of main shaft 8 are respectively by a precision bearing 9 are supported in main shaft room 7, and a bearing (ball) cover 11 is respectively installed at the two ends of main shaft room 7, each bearing (ball) cover 11 and main shaft room 7 it Between be equipped with a gasket seal, see Fig. 6, each bearing (ball) cover 11 be equipped with an axis hole C, be provided with in each axis hole C Installing a sealing ring 12 at least two seals groove C1, each seal groove C1, see Fig. 4 and Fig. 1, one end of main shaft 8 is successively Connecting through the cell body A on the axis hole C on a bearing (ball) cover 11 and welding door-plate 101 and the second gear 5, the other end passes Axis hole C on another bearing (ball) cover 11 is connected with precision drill chuck head 10, and precision drill chuck head 10 is used for installing micro tool matrix 13。
As it is shown in fig. 7, and see Fig. 3, in embodiments of the present invention, the welding base plate 102 of this rotating mechanism can be pacified It is contained on the workbench 14 of existing low speed wire electrical discharge machine platform so that rotating mechanism can be with necessarily together with workbench 14 Speed do feed motion in the horizontal direction, micro tool matrix 13 to be processed is arranged in precision drill chuck head 10, opens Galvanic electricity machine 2, motor 2 can drive the first gear 4 to rotate, and the first gear 4 is during rotating, it is possible to carried by cog belt 6 Dynamic second gear 5 rotates, and the second gear 5 delivers torque to main shaft 8 so that main shaft 8 drives precision drill chuck head 10 and precision Micro tool matrix 13 in drill chuck 10 rotates, and rotating mechanism is transported along with workbench 14 does feeding in the horizontal direction simultaneously Dynamic, the wire electrode 18 of low speed wire electrical discharge machine platform moves downward with certain wire travelling speed at vertical direction, due to workbench 14 and rotating mechanism all can conduct electricity, therefore micro tool matrix 13 is as the positive pole of spark machined, and wire electrode 18 is as electricity The negative pole of spark processing, so, can process revolving structure on micro tool matrix 13.
During processing, workbench 14 and the micro tool matrix 13 being arranged on precision drill chuck head 10 are to be immersed in In working solution, main shaft room 7 also can be immersed in working solution, and main shaft 8 is mainly supported on main shaft room 7 by two precision bearings 9 In, and the two ends of main shaft 8 are by stretching out by the axis hole C on bearing (ball) cover 11 respectively, and wherein, each bearing (ball) cover 11 and main shaft Gasket seal between room 7 is possible to prevent working solution to enter main shaft room 7 from the gap between bearing (ball) cover 11 and main shaft room 7, enters One step ground, the inner ring of the sealing ring 12 being arranged in each bearing (ball) cover 11 is in close contact with the outer surface of main shaft 8, and outer ring is with close The bottom land of sealing groove C1 is in close contact, and therefore, sealing ring 12 is possible to prevent in the rotary course of main shaft 8, and working solution passes through bearing Axis hole C on end cap 11 enters in main shaft room 7, under the double sealing effect of gasket seal and sealing ring 12, it is possible to the most anti- Only working solution enters in main shaft room 7, during micro tool matrix 13 is processed, and the installation site essence of main shaft 8 The machining accuracy of micro tool matrix 13 can be had a major impact by degree, and main shaft 8 is to be arranged on main shaft room 7 by precision bearing 9 In, if precision bearing 9 is corroded by working solution, the installation site of main shaft 8 may be made to offset, and then impact processing essence Degree, therefore, can effectively prevent working solution from entering in main shaft room 7 in precision bearing 9 being sealed in main shaft room 7 by double sealing Corrosion precision bearing 9, it is ensured that the machining accuracy of rotating mechanism.
In embodiments of the present invention, gasket seal can be resilient rubbber cushion sheet, and sealing ring 12 can be gum elastic O type Circle, as shown in Figure 6, the embodiment of the present invention is provided with three seals groove C1 in the axis hole C of each bearing (ball) cover 11, close at per pass Installing a sealing ring 12 in sealing groove C1, the quantity of seal groove C1 can carry out appropriate design according to practical situation, not limit In the embodiment of the present invention.
In embodiments of the present invention, due to two ends, the second gear 5, cog belt 6, main shaft room 7, main shaft 8 and the axle of main shaft 8 Socket end lid 11 all can be dipped into working solution, and wherein, the material of the first gear 4 and the second gear 5 is aluminium alloy, for waterproof material, tooth The material of shape band 6 is polyurethane, is also waterproof material, and therefore, working solution does not interferes with first gear the 4, second gear 5 and tooth The transmission of shape band 6, meanwhile, can be that main shaft 8, main shaft room 7, main shaft 8 and bearing (ball) cover 11 coat corrosion-resistant underwater paint, prevent During working long hours, these parts are corroded by working solution.
The low speed wire cutting machine platform using the rotating mechanism being mounted with in the embodiment of the present invention can be by micro tool matrix 13 are processed into micro tool, and this micro tool machined can use as the electrode of some spark erosion equipments, I.e. as micro tool electrode, or this micro tool machined is carried out surface process, such as, coat abrasive particle, can do For frotton;Can also be as micro-cutter, milling cutter as micro-in twolip, after improve the intensity of this micro tool, it is used for processing micropore Or microflute.
Electric spark grinding equipment of the prior art can only process the micro tool of simple revolving structure, and by this Rotating mechanism in inventive embodiments, it is possible to make low speed wire cutting machine platform process and multiple there is the fine of complex revolving body structure Instrument, such as, can process the micro tool with multidiameter, have the micro tool of self-defined surface of revolution, have taper The micro tool in face and the micro tool with cutting edge, and the micro tool of these kinds can be as micro tool electrode Use, it is also possible to use as miniature cutting tool after it being carried out surface process according to practical situation.
What the problem of HS-WEDM platform using repacking in prior art can process has the fine work of revolving structure The diameter of tool is all more than 100 μm, and the micro tool surface quality processed is poor, and precision is low;And use the embodiment of the present invention In rotating mechanism, low speed wire cutting machine platform can be made to process the micro tool of a diameter of 30 μm, simultaneously by low-speed wire cutting line The multiple cutting of cutting off machine is applied in the course of processing of micro tool, and the course of processing is divided into roughing, half essence Processing and polish, taken into account working (machining) efficiency and surface quality so that the surface quality of the micro tool processed is more preferable, surface Roughness Ra (Arithmetical Mean Deviation Of The Profile, profile arithmetic mean deviation) < 0.5 μm, It is unidirectional wire transporting due to low speed wire electrical discharge machine bed again, for the reciprocal wire transporting of high speed wire, adds The precision of the micro tool that work goes out is higher.
As it is shown in figure 1, and see Fig. 2, it is also possible to design two block welding gussets 103, two block welding gussets for welding support 1 103 both sides being vertically fixed on welding door-plate 101, and every block welding gusset 103 is also with to weld base plate 102 vertical.Welding gusset Welding support 1 can be played reinforcing and shockproof effect by 103, improves the globality of welding support 1.Welding door-plate 101 and weldering Connecing base plate 102 can use continuous fillet weld to connect, welding gusset 103 with weld base plate 102, weld door-plate 101 can also adopt Connect by angle welding.
As it is shown in figure 5, connecting plate for electric motor 3 is that to same direction, bending forms, by the one of flat board by the two ends of one flat plate End is bent to form the first support and fixes daughter board 31, and the other end is bent to form the second support and fixes daughter board 32, is positioned at the first support solid The part that stator plate 31 and the second support are fixed between daughter board 32 fixes daughter board 33 as motor;
As it is shown in figure 5, and see Fig. 4 and Fig. 8, motor is fixed daughter board 33 and is provided with through hole B, and it is solid that motor 2 is arranged on motor In stator plate 33 and the output shaft of motor 2 connects through through hole B and the first gear 4;
As it is shown in figure 5, daughter board 31 fixed by the first support and the second support is fixed daughter board 32 and is provided with strip hole, in the present invention In embodiment, daughter board 31 fixed by the first support and the second support is fixed and is equipped with two strip holes on daughter board 32, it is possible to according to reality Border situation carries out appropriate design, as it is shown in figure 9, use screw bolt passes the first support to fix strip hole and the welding of daughter board 31 Door-plate 101, and use the strip hole of screw bolt passes the second bracket fixing plate 32 and weld door-plate 101 in order to by motor 2 Position fix, wherein, bolt can be tightened at any position in strip hole, can by adjust bolt in strip hole Tighten position to adjust the degree of tightness of cog belt 6, if cog belt 6 tension, then the first support in Fig. 9 can be fixed daughter board 31, daughter board 32 fixed by the second support and motor is fixed daughter board 33 and moved down, then tights a bolt, and now, motor 2 can be along with electricity Machine is fixed daughter board 33 and is moved downward, and owing to output shaft and first gear 4 of motor 2 are connected, therefore the first gear 4 also can Move downward, make the distance between the first gear 4 and the second gear 5 reduce, the problem solving cog belt 6 tension;If profile of tooth Band is 6 the most loose, then the first support in Fig. 9 can be fixed daughter board the 31, second support and fix daughter board 32 and daughter board fixed by motor 33 move up, then tight a bolt, and now, motor 2 can move upward, due to the output of motor 2 along with daughter board 33 fixed by motor Axle and the first gear 4 are connected, and therefore the first gear 4 also can move upward, and make between the first gear 4 and the second gear 5 Distance increase, solve cog belt 6 excessively pine problem.
As it is shown in figure 1, and see Figure 10, main shaft room 7 includes base plate connecting plate 71 and the master being positioned on base plate connecting plate 71 Axocoel body 72, main shaft cavity 72 is positioned at the centre of base plate connecting plate 71;
Base plate connecting plate 71 is arranged on welding base plate 102 by bolt, in embodiments of the present invention, at main shaft cavity 72 It is respectively arranged three bolts hole on the base plate connecting plate 71 of both sides, by bolt, base plate connecting plate 71 is fixed on welding base plate On 102 and then realize the location of main shaft room 7;
As shown in figure 11, a spindle mounting hole D, two bearing mounting hole E and two bearings it are provided with in main shaft cavity 72 End cap installing hole F, the two ends of spindle mounting hole D respectively connect with a bearing mounting hole E, each bearing mounting hole E all with one Bearing (ball) cover installing hole F connects;
As shown in Figure 4, and see Fig. 1 and Figure 11, one precision bearing 9 of each installation, each axle in each bearing mounting hole E One bearing (ball) cover 11 of each installation in socket end lid installing hole F, main shaft 8 is positioned at spindle mounting hole D, and the two ends of main shaft 8 all depend on The secondary axis hole C passing a precision bearing 9 and a bearing (ball) cover 11.
As it is shown in figure 1, and see Fig. 6 and Figure 10, the edge of each bearing (ball) cover 11 is provided with multiple bolt hole, correspondingly, The two ends of main shaft cavity 72 are also equipped with multiple bolt hole, on all corresponding main shaft cavity 72 of each bolt hole on bearing (ball) cover 11 A bolt hole, main shaft 8 and precision bearing 9 are placed in main shaft cavity 72, bearing (ball) cover 11 are arranged on bearing end After in covering 11 holes and being mounted with gasket seal between bearing (ball) cover 11 and main shaft cavity 72, can be by screw bolt passes axle Bolt hole on socket end lid 11 and the bolt hole on main shaft cavity 72, and bearing (ball) cover 11 and main shaft cavity 72 are arranged on one Rise, now, under bearing (ball) cover 11, gasket seal and the effect of sealing ring 12 being positioned at bearing (ball) cover 11 so that main shaft Cavity 72 is a cavity closed, and working solution cannot be introduced into, it is therefore prevented that working solution is to the precision bearing 9 in main shaft cavity 72 Corrosion, it is ensured that the positional precision of main shaft 8, and then ensure the machining accuracy to micro tool.
As shown in figure 12, for the main shaft 8 in the embodiment of the present invention, a flat key groove 81 can be set in one end of main shaft 8, Installing flat key in flat key groove 81, make one end of main shaft 8 be connected by flat key and the second gear 5, so, the second gear 5 rotates Time, main shaft 8 can be delivered torque to, and then make main shaft 8 drive micro tool matrix 13 to rotate;In like manner, the output of motor 2 Axle can also be connected by flat key and the first gear 4, and then output moment of torsion passes to the first gear 4.
As shown in figure 12, in embodiments of the present invention, it is also possible to a conduction brush link slot is set in one end of main shaft 8 82, as it is shown on figure 3, conduction brush link slot 82 is for being connected with conduction brush 17, the rotating mechanism in the embodiment of the present invention is pacified It is contained on low speed wire electrical discharge machine platform, micro tool matrix 13 is arranged on the precision drill chuck head 10 of rotating mechanism, right During micro tool matrix 13 carries out low speed line cutting, conduction brush 17 can improve the electric conductivity of whole main shaft 8 so that electricity Stream passes through main shaft 8, without by precision bearing 9, thus avoids and sparking occurs between main shaft 8 and precision bearing 9 Phenomenon, be more beneficial for micro tool matrix 13 is carried out spark discharge processing.
As shown in figure 13, and see Fig. 3 and Fig. 9, conduction brush 17 can be welded on conduction brush pressure strip 15, conduction brush Together with pressure strip 15 is welded and fixed with one end of Change-over frame 16, the other end of Change-over frame 16 is by bolt and connecting plate for electric motor 3 It is fixed together.
As shown in figure 14, and seeing Figure 13, conduction brush pressure strip 15 is provided with welding groove 151, and conduction brush 17 can be welded Being connected in welding groove 151, as shown in figure 13, and see Fig. 4 and Fig. 9, one end of Change-over frame 16 is welded with conduction brush pressure strip 15 Being connected together, the other end can be bolted on connecting plate for electric motor 3 by four, and the position that so can make conduction brush 17 is solid Fixed, during main shaft 8 rotates, it is ensured that conduction brush 17 conduction brush link slot 82 with main shaft 8 all the time is slidably connected.
In embodiments of the present invention, by designing a kind of rotation for low-speed wire cutting linear cutter micro tool electrode Mechanism, and this rotating mechanism is arranged on the workbench 14 of low speed wire electrical discharge machine platform, by micro tool to be processed Matrix 13 is arranged on the precision drill chuck head 10 of rotating mechanism, this rotating mechanism along with workbench 14 do in the horizontal direction into Micro tool matrix 13 can be driven to rotate while giving motion, the wire electrode 18 of low speed wire electrical discharge machine platform is simultaneously Moving downward at vertical direction, micro tool matrix 13 is as the positive pole of spark machined, and wire electrode 18 is as spark machined Negative pole so that low speed wire electrical discharge machine platform can process have rotary structure or local there is revolving structure Micro tool, the micro tool processed can be used to the micro tool electrode as spark machined, it is possible to according to reality Situation uses as fine cutter after it is carried out surface process;For electric spark grinding equipment, it is mounted with whirler The cost of the low speed wire electrical discharge machine platform of structure is the cheapest, and is mounted with the low speed wire electrical discharge machine platform energy of rotating mechanism Enough process the multiple micro tool with complicated revolving structure;For the problem of HS-WEDM platform of transformation, peace Fill the low speed wire electrical discharge machine platform of rotating mechanism and can process that diameter is less, surface quality is more preferable, precision is higher micro- Fine workmanship has.Wherein, the main shaft room 7 of rotating mechanism forms a chamber closed under the effect of gasket seal and sealing ring 12 Body, therefore working solution cannot be introduced into the precision bearing 9 of main shaft room 7 internal corrosion supports main shaft 8, it is ensured that the installation essence of main shaft 8 Degree, and then ensure that the machining accuracy of micro tool.
Embodiment two
Embodiments provide the low speed wire electrical discharge machine of a kind of rotating mechanism having described in embodiment one Platform, as it is shown in figure 1, and see Fig. 7, can by rotating mechanism welding base plate 102 be arranged on low speed wire electrical discharge machine platform On workbench 14, for example, it is possible to and arrange bolt hole on workbench 14 on welding base plate 102 will weld base plate by bolt 102 and workbench 14 be fixed together, therefore, when workbench 14 does feed motion in the horizontal direction, rotation can be driven simultaneously Rotation mechanism does in the horizontal direction and then moves, and owing to rotating mechanism links together with workbench 14, therefore, is arranged on rotation Micro tool matrix 13 in mechanism is the positive pole of spark machined, and the wire electrode 18 of low speed wire electrical discharge machine platform is as electricity The negative pole of spark processing, drives micro tool to rotate at rotating mechanism, workbench 14 drives micro tool to do level to enter Do under the common effect of motion straight down to motion and wire electrode 18, micro tool matrix 13 can be processed into and have Revolving structure or local have the micro tool of revolving structure, and this micro tool processed can be used to as electrical spark working Micro-electrode in work uses.
As it is shown on figure 3, in embodiments of the present invention, in order to increase the electric conductivity in edm process, it is also possible to for Low speed wire electrical discharge machine platform arranges conduction brush pressure strip 15, Change-over frame 16 and conduction brush 17, and conduction brush 17 is welded on conduction On brush pressure strip 15, together with conduction brush pressure strip 15 is welded and fixed with one end of Change-over frame 16, the other end of Change-over frame 16 leads to Cross bolt to be fixed together with connecting plate for electric motor 3, so that the conduction brush link slot 82 of conduction brush 17 and main shaft 8 couples together, During cutting on line, conduction brush 17 can improve the electric conductivity of whole main shaft 8, is conducive to micro tool matrix 13 is carried out electricity Spark discharge is processed.
In low speed wire electrical discharge machine platform in embodiments of the present invention, workbench 14 is mounted with rotating mechanism, will Micro tool matrix 13 to be processed is arranged on the precision drill chuck head 10 of rotating mechanism, and this rotating mechanism is along with workbench 14 Micro tool matrix 13 can be driven while doing feed motion in the horizontal direction to rotate, low speed wire electrical discharge machine The wire electrode 18 of platform moves downward at vertical direction simultaneously, and micro tool matrix 13 is as the positive pole of spark machined, wire electrode 18 as the negative pole of spark machined so that low speed wire electrical discharge machine platform can process have rotary structure or Local has the micro tool of revolving structure, and the micro tool processed can be used to the micro tool electricity as spark machined Pole, it is possible to use as fine cutter after it being carried out surface process according to practical situation;Come relative to electric spark grinding equipment Say, be mounted with that the cost of the low speed wire electrical discharge machine platform of rotating mechanism is the cheapest, and be mounted with the low speed of rotating mechanism Wire-moving cutting machine can process the multiple micro tool with complicated revolving structure;HS-WEDM relative to transformation For cutting machine, be mounted with the low speed wire electrical discharge machine platform of rotating mechanism can process that diameter is less, surface quality more Good, the higher micro tool of precision.Wherein, the main shaft room 7 of rotating mechanism shape under the effect of gasket seal and sealing ring 12 Becoming a cavity closed, therefore working solution cannot be introduced into the precision bearing 9 of main shaft room 7 internal corrosion supports main shaft 8, it is ensured that The installation accuracy of main shaft 8, and then ensure that the machining accuracy to micro tool electrode.

Claims (10)

1. the rotating mechanism for low-speed wire cutting linear cutter micro tool electrode, it is characterised in that described whirler Structure includes:
Welding support (1), motor (2), connecting plate for electric motor (3), the first gear (4), the second gear (5), cog belt (6), main shaft Room (7), main shaft (8), two precision bearings (9), precision drill chuck head (10), two bearing (ball) covers (11), sealing ring (12) and close Gasket;
Welding support (1) includes welding door-plate (101) and welding base plate (102), welds door-plate (101) and welds base plate (102) Vertically, welding door-plate (101) is provided with the cell body (A) running through welding door-plate (101) thickness;
Connecting plate for electric motor (3) is arranged on described welding door-plate (101), and connecting plate for electric motor (3) is provided with through hole (B), motor (2) It is arranged on upper and motor (2) the output shaft of connecting plate for electric motor (3) to be connected through through hole (B) with the first gear (4);
Cog belt (6) is meshed with the first gear (4) and the second gear (5) respectively, and the diameter of the first gear (4) is less than the second tooth The diameter of wheel (5);
Main shaft room (7) is arranged on described welding base plate (102), and the two ends of main shaft (8) are respectively supported by a precision bearing (9) In described main shaft room (7), a bearing (ball) cover (11) is respectively installed at the two ends of main shaft room (7), and each bearing (ball) cover (11) is with main It is equipped with a gasket seal between axle room (7), each bearing (ball) cover (11) is equipped with an axis hole (C), each axis hole (C) Inside being provided with at least two seals groove (C1), install a sealing ring (12) in each seal groove (C1), one end of main shaft (8) is successively Through the axis hole (C) on a bearing (ball) cover (11) and the cell body (A) on described welding door-plate (101) and the second gear (5) Connecting, the other end is connected through the axis hole (C) on another bearing (ball) cover (11) with precision drill chuck head (10), described precision drill chuck Head (10) is used for installing micro tool matrix (13).
Rotating mechanism for low-speed wire cutting linear cutter micro tool electrode the most according to claim 1, its feature Being, described welding support (1) also includes that two block welding gussets (103), two block welding gussets (103) are vertically fixed on described weldering Connect the both sides of door-plate (101), and every block welding gusset (103) is also with described to weld base plate (102) vertical.
Rotating mechanism for low-speed wire cutting linear cutter micro tool electrode the most according to claim 1, its feature Being, described connecting plate for electric motor (3) is that to same direction, bending forms by the two ends of one flat plate, described connecting plate for electric motor (3) Fix daughter board (31) including the first support, daughter board (32) fixed by the second support and daughter board (33) fixed by motor;
Motor is fixed daughter board (33) and is positioned at the first support and fixes daughter board (31) and the second support is fixed between daughter board (32), and motor is solid Stator plate (33) is provided with described through hole (B), and described motor (2) is arranged on motor and fixes on daughter board (33) and described motor (2) Output shaft be connected with described first gear (4) through described through hole (B);
Daughter board (31) fixed by first support and the second support is fixed and is equipped with strip hole on daughter board (32), passes through screw bolt passes First support fixes the strip hole on daughter board (31) and described welding door-plate (101), and by screw bolt passes second Frame fixes the strip hole on daughter board (32) and described welding door-plate (101).
Rotating mechanism for low-speed wire cutting linear cutter micro tool electrode the most according to claim 1, its feature Being, described main shaft room (7) includes base plate connecting plate (71) and the main shaft cavity (72) being positioned on base plate connecting plate (71), main shaft Cavity (72) is positioned at the centre of base plate connecting plate (71);
Base plate connecting plate (71) is arranged on described welding base plate (102) by bolt;
A spindle mounting hole (D), two bearing mounting holes (E) and two bearing (ball) cover installing holes it are provided with in main shaft cavity (72) (F), the two ends of spindle mounting hole (D) respectively connect with a bearing mounting hole (E), each bearing mounting hole (E) all with an axle Socket end lid installing hole (F) connects;
One described precision bearing (9) of each installation, each bearing (ball) cover installing hole (F) Nei Gean in each bearing mounting hole (E) Filling a described bearing (ball) cover (11), described main shaft (8) is positioned at described spindle mounting hole (D), and the two ends of described main shaft (8) All sequentially pass through the axis hole (C) of a described precision bearing (9) and a described bearing (ball) cover (11).
Rotating mechanism for low-speed wire cutting linear cutter micro tool electrode the most according to claim 1, its feature Being, one end of described main shaft (8) is provided with flat key groove (81), installs flat key, one end of described main shaft (8) in flat key groove (81) It is connected with described second gear (5) by flat key.
6. according to described in claim 1 to 5 any one claim for low-speed wire cutting linear cutter micro tool electrode Rotating mechanism, it is characterised in that one end of described main shaft (8) is provided with conduction brush link slot (82), for and conduction brush (17) It is connected.
7. according to described in claim 1 to 5 any one claim for low-speed wire cutting linear cutter micro tool electrode Rotating mechanism, it is characterised in that described main shaft room (7), described main shaft (8) and described bearing (ball) cover (11) all scribble corrosion-resistant Underwater paint.
8. according to described in claim 1 to 5 any one claim for low-speed wire cutting linear cutter micro tool electrode Rotating mechanism, it is characterised in that the material of described cog belt (6) is polyurethane.
9. a low speed wire electrical discharge machine platform, it is characterised in that described board includes that claim 1 to 8 any one right is wanted Seek described rotating mechanism;
The welding base plate (102) of described rotating mechanism is arranged on the workbench (14) of described board, and can be with workbench (14) Do feed motion the most in the horizontal direction.
Low speed wire electrical discharge machine platform the most according to claim 9, it is characterised in that described board also includes conduction brush Pressure strip (15), Change-over frame (16) and conduction brush (17);
Conduction brush (17) is welded on upper and conduction brush (17) and described main shaft (8) the conduction brush of described conduction brush pressure strip (15) and connects Access slot (82) connects, together with described conduction brush pressure strip (15) is welded and fixed with one end of described Change-over frame (16), and described turn The other end connecing frame (16) is fixed together with described connecting plate for electric motor (3) by bolt.
CN201610851598.4A 2016-09-27 2016-09-27 Rotating mechanism and board for low-speed wire cutting linear cutter micro tool electrode Active CN106238842B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108080760A (en) * 2017-12-25 2018-05-29 大连大学 Fine stick electrode clamping device

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CN202861564U (en) * 2012-09-17 2013-04-10 佳木斯大学 Rotation clamp used for cutting complex curved surface by spark-erosion wire
CN204183061U (en) * 2014-10-21 2015-03-04 上海交通大学 For the precision rotation fixture of linear cutter
CN206065593U (en) * 2016-09-27 2017-04-05 东北大学 For the rotating mechanism and board of low-speed wire cutting linear cutter micro tool electrode

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JP2005118915A (en) * 2003-10-14 2005-05-12 Kitagawa Iron Works Co Ltd Rotary table device for electrical discharge machining
CN1597215A (en) * 2004-08-16 2005-03-23 吉林大学 Method of processing revolving surface on wire-cutting lathe
CN101590551A (en) * 2009-06-08 2009-12-02 浙江工业大学 The C shaft assembly of spark-erosion sinking machine
CN102581401A (en) * 2012-03-07 2012-07-18 哈尔滨工业大学 Electrical discharge wire cutting and processing device for processing micro-fine rotational structure
CN202861564U (en) * 2012-09-17 2013-04-10 佳木斯大学 Rotation clamp used for cutting complex curved surface by spark-erosion wire
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108080760A (en) * 2017-12-25 2018-05-29 大连大学 Fine stick electrode clamping device

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