CN110280857A - A kind of electrolytic machining clamper and its processing technology of the two-way reverse taper holes group of atomizer - Google Patents

A kind of electrolytic machining clamper and its processing technology of the two-way reverse taper holes group of atomizer Download PDF

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Publication number
CN110280857A
CN110280857A CN201910519392.5A CN201910519392A CN110280857A CN 110280857 A CN110280857 A CN 110280857A CN 201910519392 A CN201910519392 A CN 201910519392A CN 110280857 A CN110280857 A CN 110280857A
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China
Prior art keywords
cathode
workpiece
hole
locating piece
atomizer
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CN201910519392.5A
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CN110280857B (en
Inventor
谷民凯
赵真笙
陈永显
薛润荣
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Nanjing Hangpu Machinery Technology Co Ltd
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Nanjing Hangpu Machinery Technology Co Ltd
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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
    • B23H11/00Auxiliary apparatus or details, not otherwise provided for
    • 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
    • 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
    • B23H9/00Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/14Making holes

Abstract

The invention discloses a kind of electrolytic machining clampers of the two-way reverse taper holes group of atomizer, including positioning region one and positioning region two, positioning region one includes upper, it is lower to be arranged and mutually compress fixed main shaft connecting rod and cylindrical cathode locating piece, the flank threads hole that the cathode locating piece is equipped with the cathode location hole of vertical direction and communicates therewith, for positioning cathode, the positioning region two includes workpiece positioning block, Workpiece clamping block and pedestal, the workpiece positioning block and Workpiece clamping block are fixed to each other as a sub-assembly, the processing of two-way reverse taper holes can be completed by way of overturning 180 ° around horizontal axis, equipment investment is saved using the processing technology of the fixture, and it saves and reinstalls positioning time, high production efficiency.

Description

A kind of electrolytic machining clamper and its processing technology of the two-way reverse taper holes group of atomizer
Technical field
The present invention relates to a kind of electrolytic machining clamper of reverse taper holes and its processing technology more particularly to a kind of atomizer are two-way The electrolytic machining clamper and its processing technology of reverse taper holes group.
Background technique
As the fuel injection system core component of engine, the processing quality of injection hole on injection nozzle directly affects engine Dynamic property, economy and discharge index.One of an important factor for injection hole surface quality is influence quality nozzle, it singly can not be right The flow of spray orifice impacts, and also affects the spray shapes of fuel oil, and then influences the distribution feelings of fuel oil in the combustion chamber Condition.
The nozzles type hole such as machining, extrusion molding, electrical discharge machining, laser processing, Electrolyzed Processing has been developed at present Manufacturing process.Wherein, machining process has the problems such as residual stress, processing cost is high there are cutter frangibility;Extrusion molding Power consumption of polymer processing is higher, and equipment is larger, and mold loss is very fast;Electrical discharge machining has on processing efficiency and machined surface quality not Foot, and there are export license in processing, processing cost is higher.After laser processing workpiece surface be easy to appear serious metamorphic layer, Micro-crack, accurate to dimension, repeatable accuracy, surface roughness are also difficult to ensure, and can only process the limited cone of taper Shape hole.
Electrolyzed Processing is that the principle that Anodic dissolves occurs in the electrolytic solution using metal to work the work piece into shape A kind of special process method, is not influenced by material cutting ability, the surface defects such as without residual stress, recast layer, surface quality Higher, tool will not generate any loss, and geometry, size remain unchanged, and can be used for a long time;Electrochemical machining process middle-jiao yang, function of the spleen and stomach Pole is based on waiting gaps principle " copy " forming, the bellmouth for processing various tapers can be required according to Element Design, so that electrolysis adds Work has a good application prospect in the two-way back taper hole machined of batch atomizer.
When the two-way reverse taper holes of Electrolyzed Processing, frequently with one direction and twocouese feeding method.However, twocouese feeding method It is chiefly used in Double head horizontal electrolytic machine tool, equipment investment is big, high production cost.In addition, atomizer is mostly to produce product in batches, Therefore need to develop it is a set of be not only able to satisfy the two-way reverse taper holes processing request of atomizer, but also be able to satisfy the electrolysis of batch production requirements and add Clamping apparatus, while requiring the piece count using the fixture time processing flexible, it can adapt to different batch requirements.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of oil spouts high in machining efficiency and can reduce equipment input cost The electrolytic machining clamper of the two-way reverse taper holes group of mouth;It is a further object to provide it is a kind of using above-mentioned clamp for machining into The electrolytic processing process of the two-way reverse taper holes group of row atomizer.
Technical solution: a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer of the present invention, including positioning Portion one and positioning region two, the positioning region one include being arranged above and below and mutually compressing fixed main shaft connecting rod and cylindrical female Pole locating piece, the cathode locating piece is equipped with the cathode location hole of at least one vertical direction, while being equipped with the identical side of quantity Face threaded hole, a cathode location hole and the connection of flank threads hole, the positioning region two include that upper, middle and lower are arranged and For cylindrical workpiece positioning block, Workpiece clamping block and pedestal, the workpiece positioning block upper surface is equipped with annular convex platform, described convex The workpiece location hole of at least one vertical direction is equipped within the scope of platform endocyclic position, Workpiece clamping block upper surface is equipped with and work The identical annular convex platform of part locating piece, the boss endocyclic position range are equipped with the drain of quantity identical as the workpiece location hole Hole, the delivery hole internal diameter is greater than the maximum outside diameter of cathode, and less than the maximum outside diameter of workpiece, the workpiece positioning block and workpiece are suitable With installation, by the common workpiece pressing in lower surface of its lower surface and Workpiece clamping block and it is fixed to each other, the pedestal is equipped with circle Groove, the boss and the groove shaft hole matching simultaneously position fixation.
Further, the positioning region one further includes insulating boot, the insulating boot surround cathode locating piece and with the master Axis connection bar is fixedly mounted, and the insulating boot is equipped with avoid holes in the cathode position of positioning hole.
Further, the electrolytic machining clamper of the two-way reverse taper holes group of the atomizer further includes back pressure cover, the back pressure Cover upper end and insulating boot sealing fix, lower end and pedestal sealing fix, the base side be equipped with inlet, the inlet with The groove connection, back pressure cover side are equipped with liquid outlet, and the Workpiece clamping block and workpiece centre position are respectively equipped with and lead Fluid apertures.
Further, the main shaft connecting rod is fixed with the insulating boot by screw, the insulating boot and the back pressure It is sealed between cover by O-ring seal, is sealed between the back pressure cover and the pedestal by O-ring seal.
Further, the cross section of the cathode location hole is V-type, is open towards the direction of threaded hole, conducive to making cathode exist It is positioned on vertical direction.
Further, the main shaft connecting rod and cathode locating piece are respectively equipped with threaded hole, are fixed by screw, the work Part gripping block and workpiece positioning block are being equipped with mutually matched dowel hole close to marginal position respectively, while being respectively equipped with mutually The threaded hole of cooperation, is fastened by sunk screw, and it is mutually matched fixed that the workpiece positioning block is respectively equipped with cathode locating piece Position pin hole, by positioning finger setting, the workpiece positioning block and pedestal are respectively equipped with mutually matched dowel hole, pass through positioning Finger setting.
Further, the dowel hole on the cathode locating piece is two, and be centrosymmetric distribution, on the pedestal Dowel hole is two, and be centrosymmetric distribution, and the dowel hole in the workpiece positioning block is four, two of them center pair The dowel hole of distribution is claimed to be distributed to the dowel hole on cathode locating piece in corresponding, on other two dowel hole and pedestal Dowel hole is in corresponding distribution.
Further, the cathode location hole on the cathode locating piece is two, with the vertical central axis of cathode locating piece It, can to cathode location hole in corresponding distribution to be two with reference to the workpiece location hole in 180 ° of distributions, the workpiece positioning block Two two-way reverse taper holes of atomizer of simultaneous processing.
Further, the cathode location hole on the cathode locating piece is three, with the vertical central axis of cathode locating piece To be uniformly distributed with reference in 120 °, the workpiece location hole of the workpiece positioning block is three, is distributed to cathode location hole in corresponding, It being capable of three two-way reverse taper holes of atomizer of simultaneous processing.
Further, the positioning V-shaped groove on the cathode locating piece and the workpiece location hole in workpiece positioning block utilize number Electric spark linear cutting machine processing is controlled, for the dimensional tolerance of workpiece location hole within 0.01mm, inner wall is vertical with its lower surface It spends tolerance and is less than 0.03mm, cylindricity tolerance is less than 0.01mm;Position the squareness tolerance of V-shaped groove and its bottom surface 0.03mm with It is interior;The cathode locating piece, Workpiece clamping block, pedestal and workpiece positioning block other shapes processed using accurate digital control milling machine, Cathode locating piece lower surface flatness tolerance is within 0.02mm, the lower surface of Workpiece clamping block and its upper surface parallelism tolerance Within 0.02mm, within 0.03mm, the lower surface of workpiece positioning block and its upper surface parallelism tolerance exist flatness tolerance Within 0.02mm, flatness tolerance is within 0.03mm, the boss B of workpiece positioning block and squareness tolerance, the work of its lower surface The boss A of part gripping block exists with the squareness tolerance of its lower surface and the groove of pedestal and the squareness tolerance of its upper surface Within 0.03mm, respective cylindricity tolerance is within 0.02mm.
Further, the main shaft connecting rod, back pressure cover, pedestal, Workpiece clamping block, workpiece positioning block, cathode A, cathode Locating piece and cathode B are structure made of 304 stainless steel materials, and insulating boot is structure made of POM acetal copolymer material.
A kind of electrolytic machining clamper using the two-way reverse taper holes group of above-mentioned atomizer carries out the work of Electrolyzed Processing atomizer Process includes the following steps:
(A1) main shaft connecting rod is fixed with cathode locating piece screw, and cathode A is embedded in the V-arrangement groove type cathode of cathode locating piece It in location hole, is screwed in the flank threads hole communicated therewith and is compressed with screw, complete the assembling of cathode retained part;
(A2) the tip end of workpiece is positioned from the lower surface of workpiece positioning block insertion workpiece location hole, then by work The other end of the lower surface workpiece pressing of part gripping block, while workpiece positioning block and Workpiece clamping block bolt being positioned, finally lead to It crosses in the threaded hole of both sunk screw screw-ins and locks;Workpiece positioning block and pedestal bolt position;Back pressure cover and pedestal pass through spiral shell Nail is fixed, and the assembling of piece-holder part is completed;
(A3) workpiece positioning block and cathode locating piece are positioned by bolt, are completed cathode A and workpiece alignment, are removed institute later There is pin, by the insulation enclosure on cathode locating piece, both ends are connected and fixed with main shaft connecting rod screw, and cathode A exceeds insulating boot Part in addition to processing sword, rest part is entangled with heat-shrink tube, completes the assembling of first stage;
(A4) inlet of base side is connected into inlet tube, the liquid outlet of back pressure cover side wall connects outlet tube;
(A5) by the anode of workpiece connection power supply, the cathode of cathode A connection power supply;
(A6) Electrolyzed Processing parameter is set, is passed through electrolyte, starts to process, cathode is fed along the vertical direction, and workpiece is made to exist Locality dissolution occurs under electrolysis, completes first stage processing;
(A7) workpiece positioning block, workpiece and Workpiece clamping block keep assembly relation, overturn 180 ° together around horizontal axis, work The boss A of part locating piece and the groove of pedestal carry out axis hole installation, while carrying out bolt positioning to the two;Insulating boot is removed, is pacified Cathode B is filled, insulating boot is reinstalled, cathode B ultrasound goes out the part of insulating boot in addition to processing sword, and rest part is entangled with heat-shrink tube, Complete the assembling of second stage;
(A8) Electrolyzed Processing parameter is set, is passed through electrolyte, starts to process, cathode is fed along the vertical direction, and workpiece is made to exist Locality dissolution occurs under electrolysis, completes second stage processing, finally processes two-way reverse taper holes.
The utility model has the advantages that the electrolytic machining clamper of the two-way reverse taper holes group of atomizer of the invention is by changing workpiece positioning Hole, delivery hole and V-type cathode location hole arrangement, process the workpiece of different number, realize the two-way reverse taper holes group of atomizer The purpose of group processing helps to improve processing efficiency and realizes batch production;Pass through overturning workpiece positioning block and Workpiece clamping block Overlying relation, realize on uniaxial electrolytic machine tool process the two-way reverse taper holes of atomizer purpose, help to reduce Equipment investment, and clamp structure is simple, it is easy to operate;Location hole, positioning V-shaped slot, hole are processed using Electric Discharge Wire-cutting Technology Good with size, the position precision of slot, fixture positioning accuracy is higher, the concentricities of the two-way reverse taper holes processed ± Within 0.02mm.
Detailed description of the invention
The electrolytic machining clamper first stage assembling schematic diagram of the two-way reverse taper holes group of Fig. 1 atomizer of the present invention;
The electrolytic machining clamper second stage assembling schematic diagram of the two-way reverse taper holes group of Fig. 2 atomizer of the present invention;
Fig. 3 base schematic diagram;
Fig. 4 workpiece positioning block, workpiece and Workpiece clamping block assembling schematic diagram;
Fig. 5 group quantity is workpiece location hole, delivery hole and cathode location hole arrangement schematic diagram for the moment;
When Fig. 6 group quantity is two, workpiece location hole, delivery hole and cathode location hole arrangement schematic diagram;
When Fig. 7 group quantity is three, workpiece location hole, delivery hole and cathode location hole arrangement schematic diagram.
Specific embodiment
To further appreciate that the contents of the present invention, in conjunction with accompanying drawings and embodiments, the present invention is described in detail.
Embodiment 1
As Figure 1-Figure 5, a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer described in the present embodiment, packet Positioning region one, positioning region two and back pressure cover 3 are included, the positioning region one includes being arranged and mutually compressing fixed main shaft above and below to connect Extension bar 1 and cylindrical cathode locating piece 9 and insulating boot 2, the 9 cylinder location mid-shaft of cathode locating piece are equipped with a vertical side To cathode location hole 19, while column side face be equipped with a flank threads hole being connected to cathode location hole, cathode location hole Cross section be V-type, be open towards the direction of threaded hole, conducive to cathode is positioned in the vertical direction.Cathode electrode A8 insertion yin After the location hole of pole, screw is screwed in into flank threads hole and fixes cathode electrode, 2 both ends of insulating boot and main shaft connecting rod screw are solid Fixed, middle section surrounds cathode locating piece, and insulating boot is equipped with avoid holes in cathode position of positioning hole.
Positioning region two includes workpiece positioning block 7, Workpiece clamping block 5 and the pedestal 4 that upper, middle and lower are arranged and are cylinder, 7 upper surface of workpiece positioning block is equipped with annular convex platform A13, and the boss A13 inner ring center is equipped with a vertical direction Workpiece location hole 14,6 upper surface of Workpiece clamping block is equipped with annular convex platform B17 identical with workpiece positioning block 7, in boss B17 Ring center is equipped with a delivery hole 22, and 22 internal diameter of delivery hole is greater than the maximum outside diameter of cathode electrode, less than the maximum of workpiece Outer diameter, workpiece positioning block are adapted to installation with workpiece, by the common workpiece pressing in lower surface and phase of its lower surface and Workpiece clamping block Mutually fixed, the middle of the base is equipped with circular groove 21, the boss and groove shaft hole matching and passes through positioning pin with workpiece positioning block Control positioning is fixed;It is sealed fixation with O-ring seal 10 between 3 upper end of back pressure cover and insulating boot, O is used between lower end and pedestal Type sealing ring 10 is sealed fixation, and the base side is equipped with inlet, and the inlet is connected to the groove, the back 3 sides of pressure cover are equipped with liquid outlet, and the Workpiece clamping block 6 and 5 center of workpiece are respectively equipped with delivery hole.
Main shaft connecting rod 1 and cathode locating piece 9 are respectively equipped with threaded hole, are fixed by screw, Workpiece clamping block and workpiece Locating piece is being equipped with mutually matched dowel hole A12 and B15 close to marginal position respectively, while being respectively equipped with mutually matched Threaded hole is fastened by sunk screw, workpiece positioning block and cathode locating piece be respectively equipped with mutually matched dowel hole B15 and D18, by positioning finger setting, the workpiece positioning block and pedestal are respectively equipped with mutually matched dowel hole C16 and E20, lead to Cross positioning finger setting.Dowel hole on cathode locating piece is two, and be centrosymmetric distribution, and the dowel hole on pedestal is two A, be centrosymmetric distribution, and the dowel hole in the workpiece positioning block is four, the positioning of two of them central symmetry distribution For pin hole to the dowel hole on cathode locating piece in corresponding distribution, other two dowel hole is in phase with the dowel hole on pedestal It should be distributed.
The processing request of the above workpiece: the positioning V-shaped groove on cathode locating piece and the workpiece location hole in workpiece positioning block It is processed using NC wirecut EDM machine, the dimensional tolerance of workpiece location hole is within 0.01mm, inner wall and its lower surface Squareness tolerance be less than 0.03mm, cylindricity tolerance be less than 0.01mm;Positioning V-shaped groove and the squareness tolerance of its bottom surface exist Within 0.03mm;The cathode locating piece, Workpiece clamping block, pedestal and workpiece positioning block other shapes utilize accurate digital control milling Bed processing, for cathode locating piece lower surface flatness tolerance within 0.02mm, the lower surface of Workpiece clamping block and its upper surface are flat Row degree tolerance is within 0.02mm, and for flatness tolerance within 0.03mm, the lower surface of workpiece positioning block is parallel with its upper surface Tolerance is spent within 0.02mm, and flatness tolerance is within 0.03mm, the boss B of workpiece positioning block and the verticality of its lower surface The verticality of the groove and its upper surface of tolerance, the boss A of Workpiece clamping block and the squareness tolerance of its lower surface and pedestal is public Difference is within 0.03mm, and respective cylindricity tolerance is within 0.02mm.Main shaft connecting rod, back pressure cover, pedestal, workpiece clamp Tight block, workpiece positioning block, cathode A, cathode locating piece and cathode B are structure made of 304 stainless steel materials, insulating boot POM Structure made of acetal copolymer material.
A kind of process being carried out Electrolyzed Processing atomizer group using above-mentioned fixture, is included the following steps:
(A1) main shaft connecting rod is fixed with cathode locating piece screw, and cathode A is embedded in the V-arrangement groove type cathode of cathode locating piece In location hole, with screw in compression, the assembling of cathode retained part is completed;
(A2) the tip end of workpiece is positioned from the lower surface of workpiece positioning block insertion workpiece location hole, then by work The other end of the lower surface workpiece pressing of part gripping block, while workpiece positioning block and Workpiece clamping block bolt being positioned, finally lead to It crosses in the threaded hole of both sunk screw screw-ins and locks;Workpiece positioning block and pedestal bolt position;Back pressure cover and pedestal pass through spiral shell Nail is fixed, and the assembling of piece-holder part is completed;
(A3) workpiece positioning block and cathode locating piece are positioned by bolt, are completed cathode A and workpiece alignment, are removed institute later There is pin, by the insulation enclosure on cathode locating piece, is connected and fixed with main shaft connecting rod screw, cathode A exceeds the portion of insulating boot Divide in addition to processing sword, rest part is entangled with heat-shrink tube, completes the assembling of first stage;
(A4) inlet of base side is connected into inlet tube, the liquid outlet of back pressure cover side wall connects outlet tube;
(A5) by the anode of workpiece connection power supply, the cathode of cathode A connection power supply;
(A6) Electrolyzed Processing parameter is set, is passed through electrolyte, starts to process, cathode is fed along the vertical direction, and workpiece is made to exist Locality dissolution occurs under electrolysis, completes first stage processing;
(A7) workpiece positioning block, workpiece and Workpiece clamping block keep assembly relation, overturn 180 ° together around horizontal axis 23, Workpiece positioning block and pedestal bolt position;Insulating boot is removed, cathode B11 is installed, reinstalls insulating boot, cathode B ultrasound goes out to insulate In addition to processing sword, rest part is entangled with heat-shrink tube for the part of cover, completes the assembling of second stage;
(A8) Electrolyzed Processing parameter is set, is passed through electrolyte, starts to process, cathode is fed along the vertical direction, and workpiece is made to exist Locality dissolution occurs under electrolysis, completes second stage processing, finally processes two-way reverse taper holes.
In first stage process, electrolyte is flowed into from the inlet of pedestal 4, by the delivery hole of Workpiece clamping block 6 22, the pre-drilled cavity of workpiece 5 enters machining area, finally flows out from the liquid outlet of back pressure cover 3.In second stage process, electricity It solves liquid to flow into from the inlet of pedestal 4, the pre-drilled cavity by workpiece 5 enters machining area, flows through the delivery hole of Workpiece clamping block 6 22, finally flowed out from the liquid outlet of back pressure cover 3.
Embodiment 2
As shown in fig. 6, the V-type cathode location hole on cathode locating piece is two, with the vertical central axis of cathode locating piece For with reference in 180 ° of distributions, corresponding each cathode location hole has the flank threads hole communicated therewith, two cathode electrode A Installation locking is carried out simultaneously;The workpiece location hole of workpiece positioning block is two, and to cathode location hole in corresponding distribution, labor cost is clamped There are two the delivery hole of block is set, size is identical as workpiece location hole, and two workpiece are fitted into workpiece location hole simultaneously, are used in combination Workpiece clamping block lower surface is fixed, and capable of processing tool, there are two the group of the two-way reverse taper holes of atomizer, rest part and works Skill step is same as Example 1.
Embodiment 3
As shown in fig. 7, the V-type cathode location hole on cathode locating piece is three, with the vertical central axis of cathode locating piece To be uniformly distributed with reference in 120 °, corresponding each cathode location hole has the flank threads hole communicated therewith, three cathodes Electrode A carries out installation locking simultaneously;The workpiece location hole of workpiece positioning block is three, to cathode location hole in corresponding distribution, work There are three the delivery hole of valence gripping block is set, size is identical as workpiece location hole, and three workpiece are fitted into workpiece positioning simultaneously Hole, and be fixed with workpiece gripping block lower surface, capable of processing tool, there are three the group of the two-way reverse taper holes of atomizer, remaining parts Divide and processing step is same as Example 1.
When the present invention processes different number workpiece, workpiece location hole, delivery hole and positioning V-shaped slot difference arrangement are as schemed Shown in 5- Fig. 7.The position of workpiece location hole 14 should be symmetric with axis 23, corresponding delivery hole 22 and positioning V-shaped slot 19 It should be arranged according to the position of workpiece location hole 14;Theoretically, if workpiece positioning block 7, Workpiece clamping block 6 and cathode locating piece 9 is sufficiently large, then primary piece count to be processed is unrestricted, but in actual production, need to consider electrolyte supply and Therefore the problems such as conductive, should take into account production cost and production efficiency according to total production quantity and practical lathe condition, rationally really The quantity of fixed primary workpiece to be processed, selects corresponding arrangement.

Claims (10)

1. a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer, including positioning region one and positioning region two, feature exists In the positioning region one includes being arranged above and below and mutually compressing fixed main shaft connecting rod (1) and cylindrical cathode locating piece (9), the cathode locating piece is equipped with the cathode location hole (19) of at least one vertical direction, while being equipped with the identical side of quantity Threaded hole, a cathode location hole and a flank threads hole connection, the positioning region two include that upper, middle and lower are arranged and are Cylindrical workpiece positioning block (7), Workpiece clamping block (6) and pedestal (4), the workpiece positioning block upper surface are equipped with annular convex platform A (13) is equipped with the workpiece location hole (14) of at least one vertical direction, the Workpiece clamping within the scope of the boss endocyclic position Block upper surface is equipped with annular convex platform B (17) identical as workpiece positioning block, and the boss endocyclic position range is equipped with and the workpiece The delivery hole (22) of the identical quantity of location hole, the delivery hole internal diameter are greater than the maximum outside diameter of cathode and are less than outside the maximum of workpiece Diameter, the workpiece positioning block are adapted to installation with workpiece (5), by the common workpiece pressing in lower surface of its lower surface and Workpiece clamping block (5) it and is fixed to each other, the pedestal is equipped with circular groove (21), the boss B and the groove shaft hole matching and positions fixation.
2. a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer according to claim 1, which is characterized in that institute Stating positioning region one further includes insulating boot (2), and the insulating boot surrounds cathode locating piece and is fixedly mounted with the main shaft connecting rod, The insulating boot is equipped with avoid holes in the cathode position of positioning hole.
3. a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer according to claim 2, which is characterized in that institute The electrolytic machining clamper for stating the two-way reverse taper holes group of atomizer further includes back pressure cover (3), and back pressure cover upper end and insulating boot are close Sealing is fixed, and lower end and pedestal sealing are fixed, and the base side is equipped with inlet, and the inlet is connected to the groove, institute Back pressure cover side is stated equipped with liquid outlet.
4. a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer according to claim 3, which is characterized in that institute It states main shaft connecting rod (1) and is fixed with the insulating boot (2) by screw, led between the insulating boot (2) and the back pressure cover (3) O-ring seal (10) is crossed to be sealed, it is close by O-ring seal (10) progress between the back pressure cover (3) and the pedestal (4) Envelope.
5. a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer according to claim 1, which is characterized in that institute The cross section for stating cathode location hole (19) is V-type, direction of the opening towards the flank threads hole communicated therewith.
6. a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer according to claim 1, which is characterized in that institute State main shaft connecting rod (1) and cathode locating piece (9) be respectively equipped with threaded hole, fixed by screw, the Workpiece clamping block (6) with Workpiece positioning block (7) is being equipped with mutually matched dowel hole A (12) and B (15) close to marginal position respectively, while setting respectively There is mutually matched threaded hole, fastened by sunk screw, the workpiece positioning block (7) is respectively equipped with cathode locating piece (9) Mutually matched dowel hole B (15) and D (18), by positioning finger setting, the workpiece positioning block (7) and pedestal (4) are respectively Equipped with mutually matched dowel hole C (16) and E (20), by positioning finger setting.
7. a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer according to claim 6, which is characterized in that institute Stating dowel hole on cathode locating piece is two, and be centrosymmetric distribution, the dowel hole on the pedestal is two, is in The heart is symmetrical, the dowel hole in the workpiece positioning block be four, two of them central symmetry distribution dowel hole with Dowel hole on cathode locating piece is in corresponding distribution, other two dowel hole is to the dowel hole on pedestal in corresponding point Cloth.
8. a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer according to claim 1, which is characterized in that institute Stating the cathode location hole (19) on cathode locating piece (9) is two, is with reference in 180 ° with the vertical central axis of cathode locating piece Distribution, the workpiece location hole (14) of the workpiece positioning block (7) are two, to cathode location hole in corresponding distribution.
9. a kind of electrolytic machining clamper of the two-way reverse taper holes group of atomizer according to claim 1, which is characterized in that institute Stating the cathode location hole (19) on cathode locating piece (9) is three, is with reference in 120 ° with the vertical central axis of cathode locating piece It is uniformly distributed, the workpiece location hole (14) of the workpiece positioning block (7) is three, to cathode location hole in corresponding distribution.
Add 10. a kind of electrolytic machining clamper using the two-way reverse taper holes group of atomizer described in claim 1-9 carries out electrolysis The process of work atomizer group, which comprises the steps of:
(A1) main shaft connecting rod (1) is fixed with cathode locating piece (9) screw, and cathode A (8) are embedded in the V-arrangement of cathode locating piece (9) It in groove type cathode location hole (19), is screwed in the flank threads hole communicated therewith and is compressed with screw, complete cathode retained part Assembling;
(A2) the tip end of workpiece (5) is positioned from the lower surface of workpiece positioning block insertion workpiece location hole (14), then By the other end of the lower surface workpiece pressing of Workpiece clamping block, at the same workpiece positioning block (7) and Workpiece clamping block (6) bolt is fixed Position screws in the threaded hole of the two finally by sunk screw and locks;Workpiece positioning block and pedestal (4) bolt position;Back pressure cover (3) it is fixed with pedestal (4) by screw, completes the assembling of piece-holder part;
(A3) workpiece positioning block (7) and cathode locating piece (9) are positioned by bolt, complete cathode A (8) and workpiece alignment, later All pins to be removed, insulating boot (2) is covered on cathode locating piece (9), both ends are connected and fixed with main shaft connecting rod (1) screw, In addition to processing sword, rest part is entangled with heat-shrink tube, completes the group of first stage for part of the cathode A (8) beyond insulating boot (2) Dress;
(A4) inlet of pedestal (4) side is connected into inlet tube, the liquid outlet of back pressure cover (3) side wall connects outlet tube;
(A5) by the anode of workpiece (5) connection power supply, the cathode of cathode A (8) connection power supply;
(A6) Electrolyzed Processing parameter is set, is passed through electrolyte, starts to process, cathode is fed along the vertical direction, makes workpiece (5) in electricity Solution effect is lower to occur locality dissolution, completes first stage processing;
(A7) workpiece positioning block (7), workpiece (5) and Workpiece clamping block (6) keep assembly relation, turn over together around horizontal axis (23) Turn 180 °, the boss A (13) of workpiece positioning block (7) and the groove of pedestal (4) carry out axis hole installation, while carrying out bolt to the two Positioning;It removes insulating boot (2), installs cathode B (11), reinstall insulating boot, cathode B ultrasound goes out the part of insulating boot except processing sword Outside, rest part is entangled with heat-shrink tube, completes the assembling of second stage;
(A8) Electrolyzed Processing parameter is set, is passed through electrolyte, starts to process, cathode is fed along the vertical direction, makes workpiece (5) in electricity Solution effect is lower to occur locality dissolution, completes second stage processing, finally processes two-way reverse taper holes.
CN201910519392.5A 2019-06-17 2019-06-17 Electrolytic machining clamp and machining process for bidirectional inverted taper hole group of oil nozzle Active CN110280857B (en)

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CN111375850A (en) * 2020-04-01 2020-07-07 南京浦航机械科技开发有限公司 Multi-station synchronous precise electrolytic forming processing device and method for involute internal spline

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Publication number Priority date Publication date Assignee Title
CN203018867U (en) * 2013-01-16 2013-06-26 河南理工大学 Device for performing electrolytic machining on double-sided horn hole array on thin-walled cylinder
CN204470736U (en) * 2015-02-09 2015-07-15 苏州电加工机床研究所有限公司 The small reverse taper holes processing unit (plant) of a kind of adjustable electric spark
JP5759607B1 (en) * 2014-11-19 2015-08-05 要一 榊原 Centering jigs for machine tools
CN208575349U (en) * 2018-07-12 2019-03-05 温州市宏业科技股份有限公司 A kind of wire machine turnable jig

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Publication number Priority date Publication date Assignee Title
CN203018867U (en) * 2013-01-16 2013-06-26 河南理工大学 Device for performing electrolytic machining on double-sided horn hole array on thin-walled cylinder
JP5759607B1 (en) * 2014-11-19 2015-08-05 要一 榊原 Centering jigs for machine tools
CN204470736U (en) * 2015-02-09 2015-07-15 苏州电加工机床研究所有限公司 The small reverse taper holes processing unit (plant) of a kind of adjustable electric spark
CN208575349U (en) * 2018-07-12 2019-03-05 温州市宏业科技股份有限公司 A kind of wire machine turnable jig

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111375850A (en) * 2020-04-01 2020-07-07 南京浦航机械科技开发有限公司 Multi-station synchronous precise electrolytic forming processing device and method for involute internal spline
CN111375850B (en) * 2020-04-01 2021-08-31 江苏集萃精密制造研究院有限公司 Multi-station synchronous precise electrolytic forming processing device and method for involute internal spline

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