CN107059079A - A kind of increasing material manufacturing method of upstream pumping mechanical seal ring - Google Patents
A kind of increasing material manufacturing method of upstream pumping mechanical seal ring Download PDFInfo
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- CN107059079A CN107059079A CN201710444995.4A CN201710444995A CN107059079A CN 107059079 A CN107059079 A CN 107059079A CN 201710444995 A CN201710444995 A CN 201710444995A CN 107059079 A CN107059079 A CN 107059079A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/04—Electroplating with moving electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/12—Process control or regulation
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
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- Chemical Kinetics & Catalysis (AREA)
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- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Electroplating Methods And Accessories (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a kind of increasing material manufacturing method of upstream pumping mechanical seal ring, user inputs the modeling graph data of upstream pumping mechanical seal ring body and fluid dynamic pressure groove to data processing centre；The control data that digital servo control system (9) is transmitted according to data processing centre, control workbench carries out the mechanical seal ring body required for X, the mobile shaping of Y-direction；After workpiece surface grows one layer of uniform upstream pumping mechanical seal ring body metal level, move in circles can successively increasing material manufacturing go out satisfactory upstream pumping mechanical seal ring body；Control workbench to carry out X, the movement of Y-direction, required fluid dynamic pressure groove is shaped in mechanical seal ring body；Technical scheme, ensures to maintain suitable distance between tool-electrode and workpiece, can improve the accuracy of manufacture, can make the high fluid dynamic pressure groove of complex-shaped, required precision by controlling movement of the workbench along Z-direction.
Description
Technical field
The invention belongs to mechanical manufacturing field, in particular it relates to a kind of increasing material manufacturing side of upstream pumping mechanical seal ring
Method.
Background technology
The processing method for the upstream pumping mechanical seal ring commonly used both at home and abroad at present mainly has electrical discharge machining, laser to add
Work, sand-blast, chemical etching, photochemical corrosion etc. subtract material manufacture method.
Electrical discharge machining is using the HTHP effect produced when being discharged between tool-electrode and dynamic pressure groove, by dynamic pressure groove
Interior material etches to be removed fall, this method require in discharging gap dielectric is homogeneous and performance stable, tool-electrode end face
The higher depth of parallelism is kept with sealing ring end face, the effect of Uniform Discharge could be obtained, the groove depth of each groove is otherwise difficult to ensure that.This
Outside, during this method processing upstream pumping mechanical seal ring, the tool-electrode end face consistent with dynamic pressure groove shape is made, exists and adds
The problems such as work efficiency rate is low, high processing costs, finished surface are also easy to produce the micro-crack reduction strength of materials, meanwhile, work in process
The secondary discharge phenomenon of tool electrode and dynamic pressure groove workpiece can also make it that dynamic pressure groove edge is uneven, influences its performance.
Laser Processing is the hot-working of a kind of instantaneous local melting and gasification, during processing upstream pumping mechanical seal ring, its
Easily there is the defects such as micro-crack, metamorphic layer and heat affected area in finished surface, while the edge for easily causing dynamic pressure groove is uneven.
The pattern that sand-blast first has to manufacture perforate on sandblasting mask, mask is identical with dynamic pressure slot structure.When mask is placed in
When on seal end face, the position on end face beyond dynamic pressure groove is covered, and the material of extending part is removed by high energy sandblasting, is formed
The dynamic pressure groove of certain depth.The problem of this method is present is the essences such as relatively low, the processing uneven, wedge angle of dynamic pressure groove edge of the accuracy of manufacture
The distortion at thin position is serious, section flute profile is poor, sandblasting face is coarse etc., and these can all influence the hydrodynamic effect of the line of rabbet joint and close
Seal characteristic.
Chemical etching is to carry out corrosion cutting to upstream pumping mechanical seal ring using chemical corrosion liquid.Photochemical corrosion method
It is that dry-film resist is first coated with the workpiece by cutting, is then put in preprepared egative film thereon, exposed, development,
Stopping off, then the etch in etching solution, to obtain required upstream pumping mechanical seal gyration indent.Chemical etching and photochemical
Learn corrosion and be difficult the ceramic on metal or hard alloy of Material Processing homogeneity difference, and be difficult to out the groove of high form accuracy
Shape.
A kind of upstream pumping mechanical seal is disclosed in the A of Chinese patent CN 104911657 of applicant's application in 2015
The increasing material manufacturing device of fluid dynamic pressure groove, the patent is rubbed electroplate liquid in workpiece table by the sponge rubbing head of tool-electrode lower end
Electroplating process is realized in face, but can bring problems with using sponge rubbing head：
1. electroplate liquid boot speed is slow, so the plating of high current can not be carried out, coating is caused to increase very slow.
2. sponge rubbing head contacts workpiece surface all the time in electroplating process, the electrolysis of electroplate liquid easily produces bubble, due to
Sponge rubbing head contacts workpiece surface all the time so that bubble can not be excluded effectively so that the surface of plating is not fine and close enough, and stomata is more.
3. sponge rubbing head is brought compared with lossy due to friction workpiece surface in use, and the loss can not be mended
Repay so that thickness of coating is uneven, have impact on the accuracy of manufacture.
4. sponge rubbing head is relatively large in diameter, for the high sealing ring fluid dynamic pressure groove of complex-shaped required precision, during making
Precision is relatively low.
The content of the invention
To overcome the defect that prior art is present, the present invention provides a kind of increasing material manufacturing side of upstream pumping mechanical seal ring
Method, the efficient fluid dynamic pressure groove for producing upstream pumping mechanical seal ring entirety and surface.
Technical scheme is as follows：
A kind of increasing material manufacturing method of upstream pumping mechanical seal ring, the increasing material manufacturing device of use include central shaft (1),
Interior fliud flushing mechanism (2), carbon brush (3), electroplating power supply (4), workbench (5), workpiece (6), insulating barrier (8), digital stream network system
System (9), tool-electrode (10), support frame (12) and data processing centre；Manufacture method comprises the following steps：
Step 1：User inputs the modeling of upstream pumping mechanical seal ring body and fluid dynamic pressure groove to data processing centre
Graph data, and modeling graph data is converted into the control data that digital servo control system (9) can be recognized, and this is controlled
Data processed are transported to digital servo control system (9)；
Step 2：Workpiece (6) is arranged on workbench (5), and central shaft (1) and tool-electrode (10) are under the drive of lathe
High speed rotary motion is done, meanwhile, plating solution (7) is entered in central shaft (1) endoporus by flexible pipe under pressure, subsequently into
To tool-electrode (10) endoporus, workpiece surface is flowed into；
Step 3：The control data that digital servo control system (9) is transmitted according to data processing centre, control workbench enters
Mechanical seal ring body required for row X, the mobile shaping of Y-direction, in the presence of electroplating power supply (4), the metal in plating solution
Ion is reduced to metal at workpiece (6) place, so as to obtain upstream pumping mechanical seal ring body in workpiece surface deposition so that
Workpiece surface fast-growth goes out one layer of uniform upstream pumping mechanical seal ring body metal level；At the same time, tool-electrode is then
Lose electronics generation metal ion and enter plating solution, to supplement the metal ion consumed in plating solution；Digital servo control system (9) is real
When detection tool-electrode and workpiece surface between voltage, the distance between tool-electrode and workpiece are judged with this, and pass through
Control movement of the workbench (5) along Z-direction to ensure to maintain suitable distance between tool-electrode and workpiece, made up with this
The distance between tool-electrode and workpiece increase caused by tool-electrode consumption；
Step 4：After workpiece surface grows one layer of uniform upstream pumping mechanical seal ring body metal level, numeral is watched
The thickness that control system (9) control workbench moves up grown metal level along Z positive directions is taken, repeat step 3 continues to increase material system
Produce the upstream pumping mechanical seal ring body metal level of one layer of uniform thickness, move in circles can successively increasing material manufacturing go out to conform to
The upstream pumping mechanical seal ring body asked；
Step 5：The control data that digital servo control system (9) is transmitted according to data processing centre, control workbench enters
Row X, Y-direction movement, shape required fluid dynamic pressure groove in mechanical seal ring body；Digital servo control system (9)
The voltage between detection tool-electrode and workpiece surface, the distance between tool-electrode and workpiece is judged with this, and lead in real time
Cross movement of the control workbench (5) along Z-direction to ensure to maintain suitable distance between tool-electrode and workpiece, with this more
Mend the distance between tool-electrode and workpiece increase caused by tool-electrode consumption；
Step 6：After workpiece surface grows one layer of uniform fluid dynamic pressure groove metal level, digital servo control system
(9) control workbench moves up the thickness of grown fluid dynamic pressure groove metal level along Z positive directions, and repeat step 5 continues to increase material system
Produce the fluid dynamic pressure groove metal level of one layer of uniform thickness, move in circles can successively increasing material manufacturing go out satisfactory hydrodynamic
Groove.
The increasing material manufacturing method of described upstream pumping mechanical seal ring, central shaft (1) is connected on machine tool chief axis, center
Axle (1) lower end is connected through a screw thread tool-electrode (10), and central shaft (1) is connected with the hollow channel of tool-electrode (10), instrument
Electrode (10) lower end outer wall scribbles relatively thin insulating barrier (8), and tool-electrode (10) top sets carbon brush (3) close to centre position,
Tool-electrode (10) is connected by carbon brush (3) with the positive pole of electroplating power supply (4), and workpiece (6) is connected with the negative pole of electroplating power supply
Connect；
Interior fliud flushing mechanism (2) is connected on lathe by support frame (12)；Interior fliud flushing mechanism (2) include shell body (18),
Central shaft (1), bearing (16), O-ring (17), stud (13), nut (14)；Wherein, shell body (18) is cylindrical shape, and surface is opened
Provided with the through hole for being passed through plating solution (7), the through hole is connected with metal hose (11) for being passed through plating solution；With leading to for shell body (18)
Hole is corresponding, also offered on central shaft (1) with the through hole coordinate through hole as plating solution (7) input channel.
The increasing material manufacturing method of described upstream pumping mechanical seal ring, shell body (18) is internally located at metal hose (11)
Two grooves of upper and lower setting, for being positioned for sealed O-ring (17).
In the increasing material manufacturing method of described upstream pumping mechanical seal ring, manufacturing process, tool-electrode end and workpiece
The distance on surface is maintained between 0.1-1mm.
Opened up on the increasing material manufacturing method of described upstream pumping mechanical seal ring, central shaft (1) with shell body (18)
Through hole coordinate plating solution (7) input channel structure be：The axle surface of shell body (18) feeder connection is right against in central shaft (1)
On be provided with one 360 ° of annular groove, the height of annular groove is bigger than the through-hole diameter of shell body (18), is opened in annular groove
There is the through hole that an axis intersects vertically with central shaft (1) axis, through central shaft (1), the through hole enters central shaft as plating solution
(1) entrance of hollow channel.
In the increasing material manufacturing method of described upstream pumping mechanical seal ring, manufacturing process, tool-electrode end and workpiece
The current density on surface is 50-100 amperes/square decimeter.
The increasing material manufacturing method of described upstream pumping mechanical seal ring, a diameter of 0.3-3mm of tool-electrode of use.
Relative to prior art, the present invention has the advantages that：
1. inventive article electrode distance workpiece surface has certain interval (0.1-1mm), plating can be easily excluded
The bubble produced in liquid electrolytic process, along with the quick flowing of electroplate liquid, can both wash away bubble, can also be in plating room
The moment keeps fresh electroplate liquid in gap, is conducive to improving electroplating effect.
2. the present invention detects the voltage between tool-electrode and workpiece surface using digital servo control system, come with this
Judge the distance between tool-electrode and workpiece, and by controlling movement of the workbench along Z-direction to ensure tool-electrode and work
Suitable distance is maintained between part, the accuracy of manufacture can be improved.
3. due to no use sponge rubbing head, the present invention can use diameter less tool-electrode (tool-electrode diameter
0.3-3mm), the high fluid dynamic pressure groove of complex-shaped, required precision (as shown in Figure 3) can be made.
Brief description of the drawings
Fig. 1 is the efficient increasing material manufacturing apparatus structure schematic diagram of upstream pumping mechanical seal ring；
Fig. 2 is fliud flushing structural scheme of mechanism in the efficient increasing material manufacturing device of upstream pumping mechanical seal ring；
In figure：1st, central shaft, 2, interior fliud flushing mechanism, 3, carbon brush, 4, electroplating power supply, 5 workbench, 6, workpiece, 7, plating solution, 8,
Insulating barrier, 9, digital servo control system, 10, tool-electrode, 11, metal hose, 12, support frame, 13, stud, 14, nut,
15th, bearing (ball) cover, 16, bearing, 17, O-ring, 18, shell body, 19 annular grooves.
Fig. 3 is common upstream pumping mechanical seal rotary packing ring grooved faces type, and the single-row external diameters of a are shaped grooved, b chevron-notch
Type, c the Eight Character trough types.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
The efficient increasing material manufacturing method of upstream pumping mechanical seal ring, comprises the following steps：
Step 1：User inputs the modeling of upstream pumping mechanical seal ring body and fluid dynamic pressure groove to data processing centre
Graph data, and modeling graph data is converted into the control data that digital servo control system 9 can be recognized, and this is controlled
Data are transported to digital servo control system 9；
Step 2：Workpiece 6 is arranged on workbench 5, and central shaft 1 and tool-electrode 10 do under the drive of lathe and revolved at a high speed
Transhipment is dynamic, meanwhile, plating solution 7 is entered in the endoporus of central shaft 1 under 1-2MPa pressure effect by metal hose 11, Ran Houjin
Enter to the endoporus of tool-electrode 10, be flowed into workpiece surface.
Step 3：The control data that digital servo control system 9 is transmitted according to data processing centre, control workbench is carried out
Mechanical seal ring body required for X, the mobile shaping of Y-direction, in the presence of electroplating power supply 4, the metal ion in plating solution
Metal is reduced at workpiece 6, so as to obtain upstream pumping mechanical seal ring body in workpiece surface deposition so that workpiece table
Face fast-growth goes out one layer of uniform upstream pumping mechanical seal ring body metal level.At the same time, tool-electrode then loses electricity
Son produces metal ion and enters plating solution, to supplement the metal ion consumed in plating solution；Digital servo control system 9 detects work in real time
Have the voltage between electrode and workpiece surface, the distance between tool-electrode and workpiece are judged with this, and by controlling work
Movement of the platform 5 along Z-direction is suitable apart from (between 0.1-1mm) to ensure to maintain between tool-electrode and workpiece, with this
Make up the distance between tool-electrode and workpiece increase caused by tool-electrode consumption.
Step 4：After workpiece surface grows one layer of uniform upstream pumping mechanical seal ring body metal level, numeral is watched
The thickness that the control workbench of control system 9 moves up grown metal level along Z positive directions is taken, repeat step 3 continues increasing material manufacturing
Go out the upstream pumping mechanical seal ring body metal level of one layer of uniform thickness, move in circles can successively increasing material manufacturing go out to meet the requirements
Upstream pumping mechanical seal ring body.
Step 5：The control data that digital servo control system 9 is transmitted according to data processing centre, control workbench is carried out
X, Y-direction movement, shape required fluid dynamic pressure groove in mechanical seal ring body；Digital servo control system 9 is real-time
The voltage between tool-electrode and workpiece surface is detected, the distance between tool-electrode and workpiece are judged with this, and pass through control
Movement of the workbench 5 processed along Z-direction come ensure to maintain between tool-electrode and workpiece suitable distance (0.1-1mm it
Between), the distance between tool-electrode and workpiece increase caused by tool-electrode consumption are made up with this.
Step 6：After workpiece surface grows one layer of uniform fluid dynamic pressure groove metal level, digital servo control system 9
Control workbench moves up the thickness of grown fluid dynamic pressure groove metal level along Z positive directions, and repeat step 5 continues increasing material manufacturing and gone out
The fluid dynamic pressure groove metal level of one layer of uniform thickness, move in circles can successively increasing material manufacturing go out satisfactory fluid dynamic pressure groove.
As depicted in figs. 1 and 2, the efficient increasing material manufacturing device for the upstream pumping mechanical seal ring that the above method is used, bag
Include central shaft 1, interior fliud flushing mechanism 2, carbon brush 3, electroplating power supply 4, workbench 5, workpiece 6, insulating barrier 8, digital servo control system
9th, tool-electrode 10, support frame 12 and data processing centre；
The data processing centre is used for the modeling graph data for receiving the upstream pumping mechanical seal ring of user's input, and
Modeling graph data is converted into the control data that digital servo control system 9 can be recognized, existed for control workbench
The movement in X, Y, Z axis direction.
Wherein：Central shaft 1 is connected on machine tool chief axis, and the lower end of central shaft 1 is connected through a screw thread tool-electrode 10, central shaft
1 is connected with the hollow channel of tool-electrode 10, and the lower end outer wall of tool-electrode 10 is scribbled on relatively thin insulating barrier 8, tool-electrode 10
Portion sets carbon brush 3 close to centre position, and tool-electrode 10 is connected by carbon brush 3 with the positive pole of electroplating power supply 4, workpiece 6 and electricity
The negative pole of plating power supply is connected.Interior fliud flushing mechanism 2 is connected on lathe by support frame 12.
In the present invention, a diameter of 0.3-3mm of tool-electrode.
Interior fliud flushing mechanism 2 includes shell body 18, central shaft 1, bearing 16, O-ring 17, stud 13, nut 14.Wherein, outside
Housing 18 is cylindrical shape, and surface offers the through hole for being passed through plating solution 7, and the through hole is connected with metal hose 11 for being passed through plating
Liquid.Shell body 18 is internally located at two grooves of upper and lower setting of metal hose 11, for being positioned for sealed O-ring 17.With
The through hole of shell body 18 is corresponding, also offered on central shaft 1 with the through hole coordinate through hole as plating solution input channel；Tool
Body：It is right against in central shaft 1 and one 360 ° of annular groove 19 is provided with the axle surface of the feeder connection of shell body 18, annular is recessed
The height of groove 19 is bigger than the through-hole diameter of shell body 18, and an axis is provided with annular groove 19 and is intersected vertically with the axis of central shaft 1
Through hole, through central shaft 1, the through hole enters the entrance of the hollow channel of central shaft 1 as plating solution；Due to depositing for annular groove 19
, no matter central shaft 1 be located at where, plating solution all the time can enter central shaft 1 hollow channel in, to ensure that central shaft exists
Liquid can be evenly into center shaft channel, preventing plating solution from producing unstable pulsation when rotating at a high speed.
A rolling bearing is respectively installed in top and the bottom inside shell body 18, and Bearing outer installs bearing (ball) cover 15, bearing
End cap 15 is connected with shell body 18 by stud 13, nut 14, and interior fliud flushing mechanism 2 is connected by the stud 13 and nut 14 of upper left side
It is connected on support frame 12, support frame 12 is bolt-connected on lathe.
Digital servo control system 9 is used to control workbench in the movement in X, Y, Z axis direction, while digital stream network system
System 9 is additionally operable to the distance of monitoring and feedback tool electrode end and workpiece surface in real time, and both distances are kept in real time in 0.1-1mm
Between.Digital servo control system 9 is the voltage by monitoring in real time and between feedback tool electrode and workpiece surface, is come with this
Judge the distance between tool-electrode and workpiece, and by controlling movement of the workbench along Z-direction to ensure tool-electrode and work
Suitable distance is maintained between part.
The composition of plating solution 7 is distilled water 1000mL, nickel sulfate 400-420g, boric acid 55-60g, nickel chloride 18-21g, activity
Charcoal 6-8g, lauryl sodium sulfate 0.1-0.2g, hydrogen peroxide 4-6mL.In process for preparation, first boric acid is poured into successively in beaker
Boric acid is dissolved with 990mL distilled water, 70-90 DEG C of heating water bath and with glass bar stirring；Nickel sulfate and nickel chloride are subsequently poured into,
Continue heating water bath and stirred with glass bar to whole dissolvings；Activated carbon granule and hydrogen peroxide reagent activation 30min are poured into, is used in combination
Filter paper filtering is stand-by；Lauryl sodium sulfate and remaining 10mL distilled water are poured into another beaker, 70-90 DEG C of water-bath adds
Heat obtains sodium dodecyl sulfate solution, and is poured into the reagent after filtering, is turned with homogenizer with 6000-7000r/min
Speed stirring 10min, stands stand-by to room temperature.
Due to tool-electrode apart from workpiece surface apart from very little, between 0.1-1mm, tool-electrode and workpiece surface it
Between electric field density it is very high, therefore tool-electrode consumes comparatively fast along its length, the detection tool-electrode of digital servo control system 9
Voltage between workpiece surface, the distance between tool-electrode and workpiece are judged with this, and by controlling workbench 5 along Z
The movement in direction ensures to maintain suitable distance between tool-electrode and workpiece.When tool-electrode consumes it along its length
Afterwards, the insulating barrier at the tool-electrode outer wall of its consumption can be washed away by swiftly flowing plating solution, leave workpiece surface.
Applicant has done contrast test, reference table for CN104911657A and patent of the present invention using identical plating solution
1, it is 0.5-1 millimeter that the coating of half an hour of the invention, which increases thickness, electric compared to improving 4-7 times for CN104911657A
Current density is 50-100 amperes/square decimeter, improves 10-20 times, the few stomatas in surface.
Table 1
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (7)
1. a kind of increasing material manufacturing method of upstream pumping mechanical seal ring, it is characterised in that the increasing material manufacturing device of use includes
Central shaft (1), interior fliud flushing mechanism (2), carbon brush (3), electroplating power supply (4), workbench (5), workpiece (6), insulating barrier (8), numeral
Servo-control system (9), tool-electrode (10), support frame (12) and data processing centre；Manufacture method comprises the following steps：
Step 1：User inputs the modeling figure of upstream pumping mechanical seal ring body and fluid dynamic pressure groove to data processing centre
Data, and modeling graph data is converted into the control data that digital servo control system (9) can be recognized, and by the control number
According to being transported to digital servo control system (9)；
Step 2：Workpiece (6) is arranged on workbench (5), and central shaft (1) and tool-electrode (10) do height under the drive of lathe
Fast rotary motion, meanwhile, plating solution (7) is entered in central shaft (1) endoporus by flexible pipe under pressure, then into work
Have electrode (10) endoporus, be flowed into workpiece surface；
Step 3：The control data that digital servo control system (9) is transmitted according to data processing centre, control workbench carries out X, Y
Mechanical seal ring body required for the mobile shaping in direction, in the presence of electroplating power supply (4), the metal ion in plating solution exists
Workpiece (6) place is reduced to metal, so as to obtain upstream pumping mechanical seal ring body in workpiece surface deposition so that workpiece table
Face fast-growth goes out one layer of uniform upstream pumping mechanical seal ring body metal level；At the same time, tool-electrode then loses electricity
Son produces metal ion and enters plating solution, to supplement the metal ion consumed in plating solution；Digital servo control system (9) is detected in real time
Voltage between tool-electrode and workpiece surface, the distance between tool-electrode and workpiece are judged with this, and by controlling work
Make movement of the platform (5) along Z-direction to ensure to maintain suitable distance between tool-electrode and workpiece, instrument electricity is made up with this
The distance between tool-electrode and workpiece increase caused by the consumption of pole；
Step 4：After workpiece surface grows one layer of uniform upstream pumping mechanical seal ring body metal level, digital servo control
System (9) control workbench processed moves up the thickness of grown metal level along Z positive directions, and repeat step 3 continues increasing material manufacturing and gone out
The upstream pumping mechanical seal ring body metal level of one layer of uniform thickness, move in circles can successively increasing material manufacturing go out it is satisfactory
Upstream pumping mechanical seal ring body；
Step 5：The control data that digital servo control system (9) is transmitted according to data processing centre, control workbench carries out X, Y
The movement in direction, shapes required fluid dynamic pressure groove in mechanical seal ring body；Digital servo control system (9) is examined in real time
The voltage surveyed between tool-electrode and workpiece surface, the distance between tool-electrode and workpiece is judged with this, and pass through control
Movement of the workbench (5) along Z-direction ensure to maintain suitable distance between tool-electrode and workpiece, and instrument is made up with this
The distance between tool-electrode and workpiece increase caused by consumption of electrode；
Step 6：After workpiece surface grows one layer of uniform fluid dynamic pressure groove metal level, digital servo control system (9) control
Workbench processed moves up the thickness of grown fluid dynamic pressure groove metal level along Z positive directions, and repeat step 5 continues increasing material manufacturing and goes out one
Layer uniform thickness fluid dynamic pressure groove metal level, move in circles can successively increasing material manufacturing go out satisfactory fluid dynamic pressure groove.
2. the increasing material manufacturing method of upstream pumping mechanical seal ring according to claim 1, it is characterised in that central shaft
(1) it is connected on machine tool chief axis, central shaft (1) lower end is connected through a screw thread tool-electrode (10), central shaft (1) and tool-electrode
(10) hollow channel connection, tool-electrode (10) lower end outer wall scribbles relatively thin insulating barrier (8), and tool-electrode (10) top is leaned on
Nearly centre position sets carbon brush (3), and tool-electrode (10) is connected by carbon brush (3) with the positive pole of electroplating power supply (4), workpiece
(6) it is connected with the negative pole of electroplating power supply；
Interior fliud flushing mechanism (2) is connected on lathe by support frame (12)；Interior fliud flushing mechanism (2) includes shell body (18), center
Axle (1), bearing (16), O-ring (17), stud (13), nut (14)；Wherein, shell body (18) is cylindrical shape, and surface is offered
The through hole of plating solution (7) is passed through, the through hole is connected with metal hose (11) for being passed through plating solution；With the through hole pair of shell body (18)
Answer, also offered on central shaft (1) with the through hole coordinate through hole as plating solution (7) input channel.
3. the increasing material manufacturing method of upstream pumping mechanical seal ring according to claim 1, it is characterised in that shell body
(18) two grooves of upper and lower setting of metal hose (11) are internally located at, for being positioned for sealed O-ring (17).
4. the increasing material manufacturing method of upstream pumping mechanical seal ring according to claim 1, it is characterised in that manufacturing process
In, the distance of tool-electrode end and workpiece surface is maintained between 0.1-1mm.
5. the increasing material manufacturing method of upstream pumping mechanical seal ring according to claim 1, it is characterised in that central shaft
(1) plating solution (7) input channel structure for coordinating with shell body (18) through hole that is being opened up on is：It is right against in central shaft (1) outer
One 360 ° of annular groove is provided with the axle surface of housing (18) feeder connection, the height of annular groove is than shell body (18)
Through-hole diameter is big, and the through hole that an axis intersects vertically with central shaft (1) axis is provided with annular groove, should through central shaft (1)
Through hole enters the entrance of central shaft (1) hollow channel as plating solution.
6. the increasing material manufacturing method of upstream pumping mechanical seal ring according to claim 1, it is characterised in that manufacturing process
In, the current density of tool-electrode end and workpiece surface is 50-100 amperes/square decimeter.
7. the increasing material manufacturing method of upstream pumping mechanical seal ring according to claim 1, it is characterised in that the work of use
Tool electrode diameter is 0.3-3mm.
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