CN110883393A - Cathode for large-cutting-depth numerical control electrolytic machining - Google Patents
Cathode for large-cutting-depth numerical control electrolytic machining Download PDFInfo
- Publication number
- CN110883393A CN110883393A CN201911238492.7A CN201911238492A CN110883393A CN 110883393 A CN110883393 A CN 110883393A CN 201911238492 A CN201911238492 A CN 201911238492A CN 110883393 A CN110883393 A CN 110883393A
- Authority
- CN
- China
- Prior art keywords
- cathode
- numerical control
- cutting
- liquid outlet
- electrolytic machining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
- B23H3/04—Electrodes specially adapted therefor or their manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a cathode for large-cutting-depth numerical control electrolytic machining, which comprises a cylindrical clamping part and a conical machining edge part, wherein a liquid outlet is formed in the machining edge part, the liquid outlet extends in the axial direction of the cathode at the machining edge part, and the liquid outlet is arranged in a shape of an inverted triangle or an inverted isosceles trapezoid from a large radius end to a small radius end of the machining edge part. The cathode for large-cutting-depth numerical control electrolytic machining can be used for electrolytically machining a groove with a larger depth-diameter ratio at one time, is mainly applied to rough machining of materials difficult to machine, and can remove workpiece materials with large allowance. The invention keeps the flow speed and flow direction of the whole outlet basically in a reasonable range by adjusting the relationship of flow speed (kinetic energy), potential energy (fluid vertical height) and static pressure energy, namely by adjusting the shape of the cross section of the outlet.
Description
Technical Field
The invention relates to a cathode for electrolytic machining, in particular to a cathode for numerical control electrolytic machining, which can realize large cutting depth.
Background
The basic principle of the large-cutting-depth numerical control electrolytic milling processing is shown in the figure 1-2. The workpiece 1 is connected with the anode of a power supply, and the cathode 2 is connected with the cathode of the power supply; electrolyte 3 flows into inside the negative pole from the income liquid mouth at negative pole top, again from the liquid outlet of negative pole processing sword flow in with the work piece between the processing clearance, keep electrolytic machining's going on continuously, the quality of flow field is the prerequisite of electrolytic machining quality assurance, the electrolyte velocity of flow is even, the flow is sufficient, then can guarantee that processing continues to go on. If the flow velocity and pressure are not uniform, the flow is insufficient, even the liquid is deficient, the workpiece and the cathode are short-circuited, the electrolytic machining cannot be continuously carried out, and the machining quality is poor.
The existing liquid outlet is designed to be rectangular, electrolyte mainly concentrates on the lower part of the cathode liquid outlet to flow out, and the top of the liquid outlet is in a liquid-deficient state.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a cathode for large-cutting-depth numerical control electrolytic machining.
The technical scheme of the invention is as follows:
the utility model provides a negative pole for numerical control electrolytic machining of big depth of cut, includes cylindrical clamping part and conical processing sword part, processing sword part is provided with the liquid outlet, the liquid outlet is at the axial extension of processing sword part along the negative pole, the liquid outlet is from the big radius end to the little radius end of processing sword part and is the setting of triangle-inverted or isosceles trapezoid.
Further, the bottom of the processing blade part is a cathode head in a hemispherical shape.
Further, the electrolytic processing is electrolyte internal spray processing, and the cathode is hollow.
Further, the wall thickness of the cathode is uniform.
Furthermore, the cathode is clamped on the main shaft of the machine tool and is in a vertically downward posture.
Furthermore, in the working state, the flowing direction of the electrolyte flowing out from the liquid outlet is vertical to the conical surface of the processing blade part.
Further, when the inlet flow rate of the cathode is set to 30m/s, the flow rate of the liquid outlet is between 49.8m/s and 62.2 m/s.
The invention has the following beneficial effects:
the cathode for large-cutting-depth numerical control electrolytic machining can be used for electrolytically machining a groove with a larger depth-diameter ratio at one time, is mainly applied to rough machining of materials difficult to machine, and can remove workpiece materials with large allowance. The invention keeps the flow speed and flow direction of the whole outlet basically in a reasonable range by adjusting the relationship of flow speed (kinetic energy), potential energy (fluid vertical height) and static pressure energy, namely by adjusting the shape of the cross section of the outlet.
Drawings
FIG. 1 is a first schematic diagram of a numerical control electrolytic milling process;
FIG. 2 is a second schematic diagram of the numerical control electrolytic milling process;
FIG. 3 is a front view of a cathode for large-cut-depth numerical control electrolytic machining of the present invention;
FIG. 4 is a right side view of a large cutting depth numerically controlled electrolytic machining cathode of the present invention;
FIG. 5 is a perspective view of a cathode for large-cut-depth numerical control electrolytic machining of the present invention;
FIG. 6 is a cross-sectional view of a cathode for large-cut-depth numerical control electrolytic machining of the present invention;
FIG. 7 is an outlet flow velocity vector diagram of a cathode for large-cutting-depth numerical control electrolytic machining according to the present invention.
In the figure: 1. a workpiece; 2. a cathode; 3. an electrolyte; 4. a clamping portion; 5. machining the blade portion; 6. a cathode head; 7. an electrolyte inflow port; 8. and a liquid outlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The cathode structure for large-cutting-depth numerical control electrolytic machining of the invention is shown in figures 3-6 and comprises a cylindrical clamping part 4 and a conical machining edge part 5. Processing sword part 5 is provided with liquid outlet 8, and liquid outlet 8 extends along the axial of negative pole 2 at processing sword part 5, liquid outlet 8 is triangle-shaped or the setting of falling isosceles trapezoid from the major radius end to the minor radius end of processing sword part 5. The width of the liquid outlet is determined by the edge length, namely the vertex angle of the triangle, and is determined according to the milling depth (cathode edge length).
The height of the liquid outlet of the inverted triangle or the inverted isosceles trapezoid is determined by the length of the cathode edge, a groove with a larger depth-diameter ratio can be processed through one-step electrolysis, and the liquid outlet is mainly applied to rough machining of materials which are difficult to machine and can remove workpiece materials with large allowance. The speed and the direction of the liquid flowing out are the standards considering the good and bad design of the cathode outlet, namely whether the flowing direction can be vertical to the conical surface of the cathode and whether the flow speed can meet the requirements of electrolytic machining. When the cathode machining for large-cutting-depth numerical control electrolytic machining is adopted, the flowing direction of the electrolyte can be perpendicular to the cathode conical surface. When the inlet flow velocity is set to be 30m/s, the outlet flow velocity is basically kept between 49.8m/s and 62.2m/s, the requirement of electrolytic processing on the flow velocity of the electrolyte is met, and therefore the design of the outlet cathode meets the actual processing requirement.
The cathode is designed based on the Bernoulli fluid mechanics principle, and the flow speed and the flow direction of the whole outlet are basically kept in a reasonable range by adjusting the relation of flow speed (kinetic energy), potential energy (fluid vertical height) and static pressure energy, namely by adjusting the size of the cross section of the outlet.
In order to further optimize the flow field at the liquid outlet, the invention further designs the cathode head (6) at the bottom of the processing blade part (5) into a hemisphere shape. The flow field situation is shown in fig. 7, which shows that only the upper top part of the outlet has a few part of the fluid flow direction forming an included angle of 45 degrees with the side wall of the cathode due to the structure, the rest of the fluid flow direction is very vertical, and the lower part of the fluid flow direction is about 90 degrees when the fluid flow direction is gradually increased downwards, so that the flow direction basically meets the design requirement.
The invention relates to a cathode for large-cutting-depth numerical control electrolytic machining, which is clamped on a main shaft of a machine tool and then takes a vertically downward posture. The cathode includes: the processing blade of the clamping part of the cylinder is a cone, the bottommost part of the clamping part is a hemisphere, and the whole cathode thin-wall part, namely the cathode is hollow and has uniform wall thickness; the processing sword includes bottom cone and hemisphere, for satisfying electrolyte jet-propelled processing, is equipped with the inverted triangle-shaped liquid outlet from the top of hemisphere to the big bottom edge of cone. The liquid outlet is designed into the shape, which mainly meets the requirements of uniform flow velocity when the electrolyte flows out and reduction of the phenomenon of liquid shortage.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a big depth of cut numerical control cathode for electrolytic machining which characterized in that: including cylindrical clamping part (4) and conical processing sword part (5), processing sword part (5) are provided with liquid outlet (8), axial extension along negative pole (2) is being processed sword part (5) in liquid outlet (8), liquid outlet (8) are from the big radius end to the small radius end of processing sword part (5) and are the setting of inverted triangle or isosceles trapezoid.
2. The cathode for large-cutting-depth numerical control electrolytic machining according to claim 1, characterized in that: the bottom of the processing blade part (5) is a hemispheric cathode head (6).
3. The cathode for large-cutting-depth numerical control electrolytic machining according to claim 1, characterized in that: the electrolytic machining is electrolyte internal spraying machining, and the inside of the cathode (2) is hollow.
4. The cathode for large-cutting-depth numerical control electrolytic machining according to claim 3, characterized in that: the wall thickness of the cathode (2) is uniform.
5. The cathode for large-cutting-depth numerical control electrolytic machining according to claim 1, characterized in that: the cathode (2) is clamped on the main shaft of the machine tool and is in a vertically downward posture.
6. The cathode for large-cutting-depth numerical control electrolytic machining according to claim 1, characterized in that: in the working state, the flowing direction of the electrolyte (3) flowing out from the liquid outlet (8) is vertical to the conical surface of the processing blade part (5).
7. The cathode for large-cutting-depth numerical control electrolytic machining according to claim 1, characterized in that: when the inlet flow rate of the cathode (2) is set to 30m/s, the flow rate of the liquid outlet (8) is between 49.8m/s and 62.2 m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238492.7A CN110883393A (en) | 2019-12-06 | 2019-12-06 | Cathode for large-cutting-depth numerical control electrolytic machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238492.7A CN110883393A (en) | 2019-12-06 | 2019-12-06 | Cathode for large-cutting-depth numerical control electrolytic machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110883393A true CN110883393A (en) | 2020-03-17 |
Family
ID=69750751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911238492.7A Pending CN110883393A (en) | 2019-12-06 | 2019-12-06 | Cathode for large-cutting-depth numerical control electrolytic machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110883393A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050126925A1 (en) * | 2001-11-14 | 2005-06-16 | Anderson William C. | Drive head and ECM method and tool for making same |
| DE102006015442A1 (en) * | 2006-03-31 | 2007-10-04 | Daimlerchrysler Ag | Electro-chemical machining electrode for electrically conductive material, has electro-chemical machining active section, which has tapering outside geometry towards face of electrode |
| CN201168839Y (en) * | 2008-02-21 | 2008-12-24 | 常州工学院 | Composite cathode for numerical control electrolysis machine tool |
| CN101327535A (en) * | 2008-07-09 | 2008-12-24 | 南京航空航天大学 | Electrolytic machining method for micro-pit group using bipolar electrode and bipolar electrode thereof |
| CN102873416A (en) * | 2012-09-28 | 2013-01-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrode and machining method for electrolytic grooving of blisks |
| CN103706900A (en) * | 2013-12-13 | 2014-04-09 | 常州工学院 | Cathode for use in numerical control electrolysis, turning and boring machining of pressure storing cavity |
| CN204565359U (en) * | 2015-04-01 | 2015-08-19 | 山东大学 | A kind of spherical cathode numerical control electrolytic machine tool |
| CN110076405A (en) * | 2019-05-10 | 2019-08-02 | 中国航发南方工业有限公司 | Shaped Cathode for radial diffuser inter-leaf flow channel forming |
-
2019
- 2019-12-06 CN CN201911238492.7A patent/CN110883393A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050126925A1 (en) * | 2001-11-14 | 2005-06-16 | Anderson William C. | Drive head and ECM method and tool for making same |
| DE102006015442A1 (en) * | 2006-03-31 | 2007-10-04 | Daimlerchrysler Ag | Electro-chemical machining electrode for electrically conductive material, has electro-chemical machining active section, which has tapering outside geometry towards face of electrode |
| CN201168839Y (en) * | 2008-02-21 | 2008-12-24 | 常州工学院 | Composite cathode for numerical control electrolysis machine tool |
| CN101327535A (en) * | 2008-07-09 | 2008-12-24 | 南京航空航天大学 | Electrolytic machining method for micro-pit group using bipolar electrode and bipolar electrode thereof |
| CN102873416A (en) * | 2012-09-28 | 2013-01-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrode and machining method for electrolytic grooving of blisks |
| CN103706900A (en) * | 2013-12-13 | 2014-04-09 | 常州工学院 | Cathode for use in numerical control electrolysis, turning and boring machining of pressure storing cavity |
| CN204565359U (en) * | 2015-04-01 | 2015-08-19 | 山东大学 | A kind of spherical cathode numerical control electrolytic machine tool |
| CN110076405A (en) * | 2019-05-10 | 2019-08-02 | 中国航发南方工业有限公司 | Shaped Cathode for radial diffuser inter-leaf flow channel forming |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103624350A (en) | Blisk blade electrolytic finishing forming device and blisk blade machining forming method | |
| CN106077854A (en) | Interior hydrojet electrolytic mill Milling Machining system and method | |
| CN113333882B (en) | Accurate regulation and control equipment of closed structure blade electrolytic machining flow field | |
| CN203696169U (en) | Electrolysis finishing forming device for blisk blade | |
| CN110883393A (en) | Cathode for large-cutting-depth numerical control electrolytic machining | |
| CN208495998U (en) | Indexable solid carbide thread lathe tool | |
| CN206811173U (en) | Deep hole drilling apparatus | |
| CN204603963U (en) | Numerically controlled lathe cooling fluid sparge pipe | |
| CN208960741U (en) | A kind of blanking die of bounce-proof function | |
| CN203245428U (en) | Sharp milling cutter for bolt supporting surface | |
| CN201684972U (en) | Mouth piece fillet processing molding cutter | |
| CN207288925U (en) | A kind of numerically-controlled machine tool lathe tool blade | |
| CN209754101U (en) | Hexagonal wood drill | |
| CN213916164U (en) | Cutter for machining thrust surface of cylinder body of diesel engine | |
| CN219665147U (en) | Finishing to semi-finishing cutting insert | |
| CN217343610U (en) | Novel turning tool | |
| CN107790763A (en) | A kind of anticaustic turning tool rod of lathe | |
| CN204893055U (en) | Circular milling cutter piece | |
| CN216680420U (en) | Multi-style large-hole inner wall one-step forming cutter | |
| CN213052785U (en) | Large-flow channel ball head hole machining tool | |
| CN206065599U (en) | A kind of ceramic guider for being provided with skewed slot | |
| CN220782273U (en) | Cutting insert for finishing | |
| CN212350397U (en) | Tool rest for hollowed-out tool bar | |
| CN113909595B (en) | Blade/blisk electrolytic machining device and electrolyte flow stabilizing device | |
| CN209867463U (en) | Forming drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200317 |