CN109530829A - The special tooling and method of a kind of processing hydraulic valve body and similar parts ditch through-hole system - Google Patents
The special tooling and method of a kind of processing hydraulic valve body and similar parts ditch through-hole system Download PDFInfo
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- CN109530829A CN109530829A CN201811336330.2A CN201811336330A CN109530829A CN 109530829 A CN109530829 A CN 109530829A CN 201811336330 A CN201811336330 A CN 201811336330A CN 109530829 A CN109530829 A CN 109530829A
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- electrode
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- ditch
- type arc
- spark stand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
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- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention belongs to high-precision hydraulic air valve bodies, shell class functional parts ditch through-hole system's electric machining field, and in particular to the special tooling and method of a kind of processing hydraulic valve body and similar parts ditch through-hole system.The special tooling includes EROW quick-change system (1), L-type arc-spark stand (2), orients and rush oilhole (3), electrode side cleaning eye (4), electrode mounting hole (5), electrode (6)；Using this tooling, corresponding electrode is made according to the shape of ditch through-hole；Then L-type arc-spark stand is processed, and machined electrode mounting hole and orientation rush oilhole on L-type arc-spark stand；Electrode is connect by clearance fit with L-type arc-spark stand, is adopted and is screwed, L-type arc-spark stand is installed on EROW quick-change system；It rushes oil pipe to rush inside oilhole by being fixed on plastic sleeve frictional fit, realizes electric machining process orientation, level pressure punching oil, remove galvanic corrosion material in time；EROW quick-change system is installed on electromachining equipment processing ditch through-hole system.Realize the efficient stable processing of complicated ditch through-hole system.
Description
Technical field
The invention belongs to high-precision hydraulic air valve bodies, shell class functional parts ditch through-hole system's electric machining field, specifically
It is related to the special tooling and method of a kind of processing hydraulic valve body and similar parts ditch through-hole system.
Background technique
Ditch through-hole system is the important feature in the functional parts such as hydraulic air valve body, shell, has and links up hydraulic valve
The function of different cavitys (oil suction chamber, oil back chamber, control chamber etc.) is the basis for realizing hydraulic product flow control.It is produced with valve body
For product, annular groove and oil suction chamber in functional hole, oil back chamber ditch through-hole system are more, complex-shaped, and conventional cutter can not be processed,
Thus it is generally used electro-discharge machining.Traditional electric machining process will be threadingly attached to arc-spark stand with the consistent electrode of pass,
It adjusts the angle and realizes hole system electro-discharge machining inside entered function hole.This processing method arc-spark stand dimensions is small, and rigidity is low, leads
It is electrically not high；Using being threadedly coupled between arc-spark stand and electrode, it is unreliable to position, and it is complicated that electrode replaces centering process；Electric spark
Rush oil pipe and be fixed on arc-spark stand, it is uncontrolled to rush oily direction, dynamics, factors above overlaying influence may cause electrode deflection or
Being removed material cannot be discharged in time, influence discharge effect, and then reduce the processing quality and efficiency of product.The present invention proposes one
Kind is directed to the efficient stable electric processing method of valve body class product complexity ditch through-hole system, promotes the processing quality of ditch through-hole system, shortens
Process time.
Summary of the invention
The technical problem to be solved in the present invention:
Present invention mainly solves hydraulic valve, shell class interiors of products complexity ditch through-hole system's efficient stables to process problem, mentions
The processing quality of ditch through-hole system is risen, process time is shortened.
A kind of technical solution of the present invention: the tooling of processing hydraulic valve body and similar parts ditch through-hole system, which is characterized in that EROW
Quick-change system 1, L-type arc-spark stand 2, orientation rush oilhole 3, electrode side cleaning eye 4, electrode mounting hole 5, electrode 6；L-type arc-spark stand 2
Long side is equipped with orientation and rushes oilhole 3, rushes oil system for connecting, 2 short side end face of L-type arc-spark stand is equipped with electrode mounting hole 5, electrode 6
It is mounted in electrode mounting hole 5, is laterally equipped with electrode side cleaning eye 4, it is fast that the L-type arc-spark stand 2 equipped with electrode 6 is installed on EROW
It changes in system 1.
The electrode mounting hole 5 and 6 fit clearance of electrode is generally 0.02~0.04mm.
2 long side of L-type arc-spark stand and short side verticality are 0.01mm.
The orientation rushes 3 inclined hole Partial angle of oilhole=arctan and (it is short away from L-type arc-spark stand 2 to rush oilhole straight hole portion centers
Edge lengths/electrode effective length).
6 cross sectional shape of electrode is round, square, rectangle.
A kind of processing method of processing hydraulic valve body and similar parts ditch through-hole system tooling, which comprises the following steps:
1), hole machined electrode 6 is linked up in production
According to the shape of hydraulic valve, enclosure interior ditch through-hole, the electrode of respective shapes is processed, electrode size, which is equal to, links up
Hole specification subtracts electromachining equipment discharging gap value,
2) L-type arc-spark stand 2, is processed
L-type arc-spark stand 2 first carries out shape roughing using numerical control mill, and each face made allowance 0.1mm carries out heat treatment and promotes material
Expect hardness, flat surface grinding technique is used to guarantee long side and short side verticality for 0.01mm；
In 2 end face machined electrode mounting hole of L-type arc-spark stand, 0.02~0.04mm is generally with the fit clearance of electrode 6；
At the back side of the installation end of electrode mount 2, machined electrode side cleaning eye 4；
The angle that orientation rushes 3 inclined hole part of oilhole is calculated, orientation rushes 3 inclined hole Partial angle of oilhole=arctan and (rushes oilhole
Straight hole portion centers are away from 2 bond lengths of L-type arc-spark stand/electrode effective length), it is processed on L-type arc-spark stand 2 according to calculated result
Orientation rushes oilhole 3.
4 aperture of electrode side cleaning eye is φ 7.5.
6 surface roughness Ra 0.4 of electrode.
Beneficial effects of the present invention:
The present invention realizes the conversion of machine direction and the promotion of electric machining process electric conductivity using L-type arc-spark stand；
The Integrated electrode mounting hole on L-type arc-spark stand, reduction electrode installation centering difficulty, promotion electrode connection reliability, the one of installation
Cause property stablizes ditch through-hole system processing quality；By rushing oily oil circuit design and calculating, electric machining mistake is may be implemented in the oilhole that rushes of processing
The orientation of journey, level pressure punching oil, exclude galvanic corrosion object in time, promote electric machining efficiency；By EROW quick-change system and electromachining equipment,
Electrode can be switched fast.Realize the efficient stable processing of hydraulic valve product complexity ditch through-hole system.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is A-A cross-sectional view of the present invention；
Fig. 3 is the structural schematic diagram of EROW quick-change system；
Fig. 4 is the main view of L-type arc-spark stand 2；
Fig. 5 is the A-A cross-sectional view of L-type arc-spark stand 2.
Wherein, 1-EROW quick-change system 2-L-type arc-spark stand
3-orientations rush oilhole 4-electrode side cleaning eye
5-6-electrodes of electrode mounting hole
Specific embodiment
With reference to the accompanying drawing, the present invention is further described:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of processing hydraulic valve body, shell part ditch through-hole system tooling, EROW quick change
System 1, L-type arc-spark stand 2, orientation rush oilhole 3, electrode side cleaning eye 4, electrode mounting hole 5, electrode 6；2 long side of L-type arc-spark stand
Oilhole 3 is rushed equipped with orientation, rushes oil system for connecting, L-type arc-spark stand short side end face is equipped with electrode mounting hole 5, and electrode 6 is mounted on
In electrode mounting hole 5, it is laterally equipped with electrode side cleaning eye 4, the L-type arc-spark stand 2 equipped with electrode 6 is installed on EROW quick-change system
1。
As shown in Figure 3, Figure 4, electrode mounting hole 5 and 6 fit clearance of electrode are generally 0.02~0.04mm.L-type arc-spark stand 2
Long side and short side verticality are 0.01mm.Orientation rushes 3 inclined hole Partial angle of oilhole=arctan, and (orientation rushes 3 straight hole part of oilhole
Center is away from 2 bond lengths of L-type arc-spark stand/electrode effective length).6 cross sectional shape of electrode is round, square, rectangle.
The processing method of hydraulic valve, shell part ditch through-hole system tooling, comprising the following steps:
1), hole machined electrode 6 is linked up in production
According to the shape of hydraulic valve, enclosure interior ditch through-hole, the electrode of respective shapes is processed, electrode sections can be circle
Shape, square, rectangle etc..Electrode size is equal to communication hole specification and subtracts electromachining equipment discharging gap value.
2) L-type arc-spark stand 2, is processed
It since ditch through-hole direction is generally vertical with place functional hole, thus needs to make switching L-type arc-spark stand, realizes processing
The adjustment in direction.
In 2 end face machined electrode mounting hole 5 of L-type arc-spark stand, fit clearance is generally 0.02~0.04mm, clearance fit
The more conventional thread connecting mode of mode is relatively reliable, since 2 specification of L-type arc-spark stand is big, entire electric machining system electric conductivity
It is good.
At the back side at the end of electrode installation, machined electrode side cleaning eye promotes electrode installation accuracy.
It calculates orientation and rushes 3 angle of oilhole and position, processed on L-type arc-spark stand 2 according to calculated result and rush oilhole, control
Electric machining process rushes oily direction.
The application method of this tooling:
1), installation L-type arc-spark stand 2 and EROW quick-change system 1
Electrode 6 is installed on inside the electrode mounting hole 5 of L-type arc-spark stand 2 by clearance fit, it is solid from side using screw
It is fixed；L-type arc-spark stand 2 is installed on EROW90 collet, and is fixed from 1 × 45 ° of chamfering of seamed edge with screw.
2) it, connects EROW quick-change system and rushes oil system
Plastic sleeve is connect with oily hose is rushed, it is straight that the orientation of plastic sleeve indentation L-type arc-spark stand 2 is then rushed oilhole 3
Bore portion realizes orientation, the level pressure punching oil of electric machining process.
3), EROW quick-change system is installed
EROW quick-change system 1 is installed on electromachining equipment main shaft, machined parameters are set, carry out corresponding ditch through-hole system or
Slot processing.
Embodiment one
Below by taking certain type valve body as an example, part material 15-5PH, it is 7mm × 2mm which, which links up square hole size, is linked up
Distance is 4mm, and electrode material uses copper-tungsten, and the efficient ditch processing method of through holes based on EROW quick-change system is described in detail.
Specifically includes the following steps:
1), hole machined electrode 6 is linked up in production
According to the shape of hydraulic valve internal access through-hole, NC Milling electrode shape processes guarantee by plain grinding, flat grind
5 μm of the flatness of electrode mounting surface, roughness Ra 0.4, according to electromachining equipment discharging gap, electrode size 6.95+0.03mm×
1.95+0.03mm×27+0.2mm。
2) L-type arc-spark stand 2, is processed
Using electric discharging machining electrode mounting hole 5, hole and electrode fit clearance press 0.02~0.04mm, thus electrode is installed
Hole 5 is processed as 6.92+0.03mm×1.92+0.03mm×20+0.2, the thread connecting mode that the mode of clearance fit is more conventional more may be used
It leans on, since 2 specification of L-type arc-spark stand is big, entire electric machining system conducts electricity very well.
At the back side at the end of electrode installation, the electrode side cleaning eye that processing diameter is φ 7.5 promotes electrode installation essence
Degree is cleared up and is discharged convenient for galvanic corrosion object.
Orientation rushes 3 straight hole portion centers of oilhole away from L-type arc-spark stand length=27mm；
Orientation rushes 3 inclined hole Partial angle of oilhole=arctan, and (it is long away from L-type arc-spark stand that orientation rushes 3 straight hole portion centers of oilhole
Degree/electrode effective length)=arctan (27/27)=45 °.
Orientation is processed on L-type arc-spark stand 2 according to calculated result and rushes oilhole 3, control electric machining process rushes oily direction.
The application method of this tooling:
1), L-type arc-spark stand and EROW quick-change system are installed
Electrode is installed on inside the electrode mounting hole 5 of L-type arc-spark stand 2 by clearance fit, it is solid from side using screw
It is fixed；L-type arc-spark stand 2 is installed on EROW90 collet, and is fixed from 1 × 45 ° of chamfering of seamed edge with screw.
2) it, connects EROW quick-change system and rushes oil system
Plastic sleeve is connect with oily hose is rushed, it is straight that the orientation of plastic sleeve indentation L-type arc-spark stand 2 is then rushed oilhole 3
Bore portion, most favourable opposition oil pressure=0.1MPa realize orientation, the level pressure punching oil of electric machining process.
3), EROW quick-change system is installed
EROW quick-change system is installed on electromachining equipment main shaft, machined parameters, pulse width=150us, pulse are set
Interval=80us, peak point current=4A carry out corresponding ditch through-hole system or slot processing.
Claims (8)
1. a kind of tooling of processing hydraulic valve body and similar parts ditch through-hole system, which is characterized in that EROW quick-change system (1), L-type electrode
Frame (2), orientation rush oilhole (3), electrode side cleaning eye (4), electrode mounting hole (5), electrode (6)；L-type arc-spark stand (2) long side
Equipped with orientation rush oilhole (3) for connect rush oil system, L-type arc-spark stand (2) short side end face is equipped with electrode mounting hole (5), electrode
(6) it is mounted in electrode mounting hole (5), is laterally equipped with electrode side cleaning eye (4), the L-type arc-spark stand (2) of electrode (6) is housed
It is installed on EROW quick-change system (1).
2. the tooling of processing hydraulic valve body and similar parts ditch through-hole as described in claim 1 system, which is characterized in that the electrode
Mounting hole (5) and electrode (6) fit clearance are 0.02~0.04mm.
3. the tooling of processing hydraulic valve body and similar parts ditch through-hole as claimed in claim 1 or 2 system, which is characterized in that the L-type
Arc-spark stand (2) long side and short side verticality are 0.01mm.
4. the tooling of processing hydraulic valve body and similar parts ditch through-hole as claimed in claim 3 system, which is characterized in that the orientation punching
Oilhole (3) inclined hole Partial angle=arctan.
5. the tooling of processing hydraulic valve body and similar parts ditch through-hole as claimed in claim 4 system, which is characterized in that electrode (6) is cut
Face shape is round, square, rectangle.
6. a kind of processing method of processing hydraulic valve body and similar parts ditch through-hole system tooling, which comprises the following steps:
1), hole machined electrode (6) are linked up in production
According to the shape of hydraulic valve, enclosure interior ditch through-hole, the electrode of respective shapes is processed, electrode size, which is equal to, links up hole gauge
Lattice size subtracts electromachining equipment discharging gap value；
2) L-type arc-spark stand (2), are processed
L-type arc-spark stand (2) first carries out shape roughing using numerical control mill, and each face made allowance 0.1mm carries out heat treatment and promotes material
Hardness uses flat surface grinding technique to guarantee long side and short side verticality for 0.01mm；
In L-type arc-spark stand (2) end face machined electrode mounting hole (5), with the fit clearance of electrode (6) be generally 0.02~
0.04mm；
At the back side of L-type arc-spark stand (2) installation end, machined electrode side cleaning eye (4)；
The angle that orientation rushes oilhole (3) inclined hole part is calculated, orientation rushes oilhole (3) inclined hole Partial angle=arctan, according to meter
Calculation result processes orientation on L-type arc-spark stand (2) and rushes oilhole (3).
7. the processing method of processing hydraulic valve body and similar parts ditch through-hole as claimed in claim 6 system tooling, which is characterized in that institute
Stating electrode side cleaning eye (4) aperture is φ 7.5.
8. the processing method of processing hydraulic valve body and similar parts ditch through-hole as claimed in claim 6 system tooling, which is characterized in that institute
State electrode (6) surface roughness Ra 0.4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336330.2A CN109530829A (en) | 2018-11-09 | 2018-11-09 | The special tooling and method of a kind of processing hydraulic valve body and similar parts ditch through-hole system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336330.2A CN109530829A (en) | 2018-11-09 | 2018-11-09 | The special tooling and method of a kind of processing hydraulic valve body and similar parts ditch through-hole system |
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| Publication Number | Publication Date |
|---|---|
| CN109530829A true CN109530829A (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811336330.2A Pending CN109530829A (en) | 2018-11-09 | 2018-11-09 | The special tooling and method of a kind of processing hydraulic valve body and similar parts ditch through-hole system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5003148A (en) * | 1988-10-11 | 1991-03-26 | Fort Wayne Wire Die, Inc. | Method of threading electrode through EDM guide |
| CN2075565U (en) * | 1990-09-07 | 1991-04-24 | 北京二轻模具研究所 | Electric discharge machining electrode |
| EP1369099A2 (en) * | 2002-06-06 | 2003-12-10 | Anopol Limited | Improvements in stent manufacture |
| CN103722258A (en) * | 2013-11-19 | 2014-04-16 | 无锡高晟成型科技有限公司 | Electric pulse fixture structure |
| CN103878461A (en) * | 2014-03-24 | 2014-06-25 | 歌尔声学股份有限公司 | Discharging jig for machining horn gate |
| CN104842031A (en) * | 2015-05-27 | 2015-08-19 | 上海皮尔博格有色零部件有限公司 | Tool for electric discharge machining of deep holes |
| CN206200273U (en) * | 2016-10-28 | 2017-05-31 | 深圳职业技术学院 | It is a kind of while the electrode die of groove and the skew surface of processing cavity part |
-
2018
- 2018-11-09 CN CN201811336330.2A patent/CN109530829A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5003148A (en) * | 1988-10-11 | 1991-03-26 | Fort Wayne Wire Die, Inc. | Method of threading electrode through EDM guide |
| CN2075565U (en) * | 1990-09-07 | 1991-04-24 | 北京二轻模具研究所 | Electric discharge machining electrode |
| EP1369099A2 (en) * | 2002-06-06 | 2003-12-10 | Anopol Limited | Improvements in stent manufacture |
| CN103722258A (en) * | 2013-11-19 | 2014-04-16 | 无锡高晟成型科技有限公司 | Electric pulse fixture structure |
| CN103878461A (en) * | 2014-03-24 | 2014-06-25 | 歌尔声学股份有限公司 | Discharging jig for machining horn gate |
| CN104842031A (en) * | 2015-05-27 | 2015-08-19 | 上海皮尔博格有色零部件有限公司 | Tool for electric discharge machining of deep holes |
| CN206200273U (en) * | 2016-10-28 | 2017-05-31 | 深圳职业技术学院 | It is a kind of while the electrode die of groove and the skew surface of processing cavity part |
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Application publication date: 20190329 |