CN108356373B - Curved blind hole processing device and curved method for processing blind hole - Google Patents
Curved blind hole processing device and curved method for processing blind hole Download PDFInfo
- Publication number
- CN108356373B CN108356373B CN201810064600.2A CN201810064600A CN108356373B CN 108356373 B CN108356373 B CN 108356373B CN 201810064600 A CN201810064600 A CN 201810064600A CN 108356373 B CN108356373 B CN 108356373B
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- workpiece
- blind hole
- section
- curved
- electric discharge
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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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
-
- 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
-
- 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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
- B23H11/003—Mounting of workpieces, e.g. working-tables
Abstract
A kind of curved blind hole processing device and curved method for processing blind hole, for processing curved blind hole on workpiece, curved blind hole processing device includes the tool-electrode for being oppositely arranged and being used for workpieces processing with workpiece, for clamping the simultaneously driver of driving instrument electrode opposite piece rotation and with workpiece electric connection and also with tool-electrode electric connection and for providing the pulse power of pulse electricity, tool-electrode include clamped for driver and the gripping section and arc-shaped setting that are electrically connected with the pulse power and its first end are electrically connected at gripping section and its second end between workpiece for generating the electric discharge section of electric spark.The present invention can disposably process multiple curved blind holes in workpiece surface, have high-precision and high efficiency.
Description
Technical field
The invention belongs to electric spark machining field more particularly to a kind of curved blind hole processing device and processing methods.
Background technique
Currently, opening up curved blind hole on workpiece, needed in actual production in electrically conductive workpieces such as mould steel in mould inside
Processing, but existing method is difficult to realize and processes fine, high-precision curved blind hole on workpiece, leads to curved blind hole machining
There is a problem of that precision is low.
Summary of the invention
The purpose of the present invention is to provide a kind of curved blind hole processing devices, it is intended to which solving curved blind hole machining, there are precision
Low problem.
The invention is realized in this way a kind of curved blind hole processing device, for processing curved blind hole on workpiece, including
The tool-electrode of the workpiece is oppositely arranged and is used to process with the workpiece, for clamping and driving the tool-electrode opposite
The driver and be electrically connected with the workpiece and be also electrically connected with the tool-electrode and be used to mention that the workpiece rotates
For the pulse power of pulse electricity, the tool-electrode includes clamping for the driver and being electrically connected with the pulse power
Gripping section and arc-shaped setting and its first end be electrically connected at the gripping section and its second end be used for the workpiece it
Between generate electric spark electric discharge section.
Further, the shape of the electric discharge section is one section of annular circular arc, and the outer diameter of the electric discharge section is 5~30mm, institute
The internal diameter for stating electric discharge section is 4~29.5mm.
Further, the angle of central angle corresponding to the electric discharge section is greater than 0 degree and less than 270 degree, the electric discharge section
The corresponding center of circle is located on the central axis of the gripping section.
Further, the tool-electrode further includes connecting the electric discharge section and the gripping section and the parallel gripping section
The central axis linkage section, one end of the linkage section connects the gripping section, the other end connection of the linkage section
It is described electric discharge section first end, it is described electric discharge section second end towards the workpiece surface to be machined.
Further, one end that the linkage section connects the gripping section is located at the gripping section towards the end of the workpiece
Face.
Further, the curved blind hole processing device further includes the stationary fixture for fixing the workpiece, described solid
Clamp tool offers fixing groove towards the surface of the tool-electrode, and one end of the workpiece is fixed in the fixing groove, institute
State the bottom plate and two blocks of side plates for being oppositely arranged and being fixed on the bottom plate that stationary fixture includes tiling setting, the bottom plate
It surrounds to form the fixing groove with two blocks of side plates.
Further, including following procedure of processing:
Further, prepare curved blind hole processing device as described above；
Further, the workpiece is immersed in cooling down workpiece and the working solution of chip removal and to be placed on scheduled position
It sets so as to form discharge loop between the workpiece, the tool-electrode and the pulse power；
Further, fine electric spark electric discharge is generated between the electric discharge section and the workpiece to corrode and process the work
Part, the driver drive the tool-electrode rotation.
Further, the material of the workpiece is mould steel, and the material of the tool-electrode is red copper.
Further, the pulse voltage of the pulse power is 70~220V, the pulse width of the pulse power is 1~
100μs。
Further, the revolving speed of the driver is 60~6000n/min, and the feed speed of the driver is 1~10 μ
M/n, the rollback speed of the driver are 1~10 μm/n.
The present invention compared with the existing technology have the technical effect that the tool-electrode, the workpiece and the pulse electricity
Spark discharge circuit is collectively formed in source.Driver drives the tool-electrode opposite piece rotation, the electric discharge of arc-shaped setting
Section can constantly be corroded by the electric spark generated between workpiece and process the workpiece, to process on workpiece high-precision
The curved blind hole of degree.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of curved blind hole processing device provided by the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of the tool-electrode of the curved blind hole processing device of Fig. 1.
Fig. 3 is cross-sectional view of the workpiece along center axis thereof of the curved blind hole processing device of Fig. 1.
Fig. 4 is the structural schematic diagram of the stationary fixture of the curved blind hole processing device of Fig. 1.
Numbering in the drawing relationship corresponding with title is as follows:
| Title | Label | Title | Label |
| Curved blind hole processing device | 100 | Gripping section | 21 |
| Workpiece | 50 | Curved blind hole | 51 |
| Tool-electrode | 20 | Linkage section | 22 |
| Driver | 10 | Stationary fixture | 30 |
| First end | 231 | Bottom plate | 31 |
| Second end | 232 | First side plate | 32 |
| Electric discharge section | 23 | Second side plate | 33 |
| Fixing groove | 40 |
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " thickness ", "upper", "lower", " vertical ", " parallel ",
The orientation or positional relationship of the instructions such as "bottom", " angle " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, the terms such as term " installation ", " connection " should do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connection, be also possible to electricity
Connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of element.
Please refer to Fig. 1 to Fig. 2, curved blind hole processing device 100 provided by the embodiment of the present invention, in workpiece 50
Curved blind hole 51 is processed, the curved blind hole processing device 100 includes being oppositely arranged with the workpiece 50 and for processing institute
Tool-electrode 20, the driver 10 for clamping and driving the tool-electrode 20 to rotate relative to the workpiece 50 for stating workpiece 50
And it is electrically connected with the workpiece 50 and is also electrically connected with the tool-electrode 20 and is used to provide the pulse electricity of pulse electricity
Source (figure is not drawn), the tool-electrode 20 include the clamping for clamping for the driver 10 and being electrically connected with the pulse power
Section 21 and arc-shaped setting and its first end 231 be electrically connected at the gripping section 21 and its second end 232 be used for it is described
The electric discharge section 23 of electric spark is generated between workpiece 50.Specifically, driver 10 is numerically-controlled machine tool, the numerical control machine in the present embodiment
The revolving speed of bed main shaft is 60~6000 revs/min.
Spark discharge circuit is collectively formed in the tool-electrode 20, the workpiece 50 and the pulse power.Driving
Device 10 drives 20 opposite piece 50 of tool-electrode to rotate, and the electric discharge section 23 of arc-shaped setting can be by between workpiece 50
The electric spark of generation constantly corrodes and processes the workpiece 50, to process high-precision curved blind hole 51 on workpiece 50.
Specifically, tool-electrode 20 described in the present embodiment is from a wealth of sources, the red copper with good electric conductivity.It is described
Electric discharge section 23 can be processed into the shape of needs by processing methods such as laser or wire cuttings.It is described electric discharge section 23 shape be
The outer diameter of one section of annular circular arc, the electric discharge section 23 is 5~30mm, and the internal diameter of the electric discharge section 23 is 4~29.5mm.Specifically
Ground, the shape of the cross section of the electric discharge section 23 can be round, ellipse, triangle or rectangular etc., and concrete shape can be with
It is determined according to the requirement of curved blind hole 51 to be processed.Preferably, the shape of the cross section for section 23 of discharging in the present embodiment
Outer diameter for rectangle, the electric discharge section 23 is 20mm, and the internal diameter of the electric discharge section 23 is 19mm, and the electric discharge section 23 is processed
The cross-sectional shape of curved blind hole 51 out is also rectangle accordingly.
It is described electric discharge section 23 corresponding to central angle angular range: greater than 0 degree and less than 270 degree.The electric discharge section 23
The corresponding center of circle is located in the central axis (not shown) of the gripping section 21.Specifically, the electric discharge section 23 is processed
The central angle of curved blind hole 51 also is located on the central axis and the angular range of the central angle of the curved blind hole 51 arrives for 0
180 degree.Preferably, the central angle for curved blind hole 51 corresponding to section 23 of discharging in the present embodiment is 75 degree.
The tool-electrode 20 further includes connecting the electric discharge section 23 and the gripping section 21 and the parallel gripping section 21
The central axis linkage section 22, one end of the linkage section 22 connects the gripping section 21, the linkage section 22 it is another
One end connects the first end 231 of the electric discharge section 23, being processed towards the workpiece 50 of second end 232 of the electric discharge section 23
Surface.It is only provided with one section of electric discharge section 23 on the present embodiment middle connecting segment 22, can also set side by side in other embodiments
Multiple electric discharge sections 23 are set, so that primary property simultaneous processing goes out multiple curved blind holes 51 on workpiece 50.
The linkage section 22 also electrically conducts the gripping section 21 and the electric discharge section 23, can be with by the linkage section 22
The relative space position for adjusting electric discharge section 23 and the gripping section 21, to be conducive to the processing of curved blind hole 51.Specifically, even
The plane where section 22 and the centerline axis parallel and vertical discharge section 23 is connect, can be processed on workpiece 50 horizontally disposed
Curved blind hole 51.When linkage section 22 and the central axis have scheduled angle, then inclination can be processed on workpiece 50
The curved blind hole 51 being arranged.It is thus possible to meet the processing for being unable to the curved blind hole 51 of type.The linkage section 22 connects described
One end of gripping section 21 can connect side wall or end face in the gripping section 21.Preferably, it is connected described in the present embodiment
One end of the 22 connection gripping section 21 of section is located at the gripping section 21 towards the end face of the workpiece 50.
Please refer to Fig. 3 to Fig. 4, the curved blind hole processing device 100 further includes for fixing the workpiece 50
Stationary fixture 30, the surface of the stationary fixture 30 towards the tool-electrode 20 offer fixing groove 40, the workpiece 50
One end is fixed in the fixing groove 40, and the stationary fixture 30 includes that the bottom plate 31 of tiling setting and two pieces are oppositely arranged simultaneously
The side plate being fixed on the bottom plate 31, two blocks of side plates include the first side plate 32 and are oppositely arranged with the first side plate 32
Second side plate 33.The bottom plate 31 and two blocks of side plates surround to form the fixing groove 40.
In order to better understand the present apparatus, the present embodiment additionally provides a kind of curved method for processing blind hole.Add including following
Work step is rapid:
Prepare curved blind hole processing device 100 as described above；
The workpiece 50 and the stationary fixture 30 are immersed in and (schemed not to cooling down workpiece 50 and the working solution of chip removal
Draw) in and be placed on scheduled position and put so as to be formed between the workpiece 50, the tool-electrode 20 and the pulse power
Electrical circuit；
Fine electric spark galvanic corrosion is generated between the electric discharge section 23 and the workpiece 50 and processes the workpiece 50, the drive
Dynamic device 10 drives the tool-electrode 20 to rotate.
According to the radian and level angle of the curved blind hole 51 processed, the electric discharge section 23 for selecting tool-electrode 20 arrives workpiece
Distance, the angle of machined surface and electric discharge 23 second end 232 of section of 50 machined surfaces.According to the position for the curved blind hole 51 processed
It sets, selectes the second end 232 of electric discharge section 23 and the relative position of workpiece 50.
Specifically, the long tube that workpiece 50 described in the present embodiment is vertically arranged and cross section is square, the workpiece
50 material is mould steel.At the central axis (not shown) of the main shaft 11 of a side 51 and numerically-controlled machine tool for the workpiece 50
In same straight line.
Tool-electrode 20 is dropped into Working position along the main-shaft axis of numerically-controlled machine tool and is carried out to knife.Tool in the present invention
The feeding mode of electrode 20 is swivel feeding, and direction of feed is the direction a shown in FIG. 1, and rollback direction is the direction b shown in FIG. 1.
Specifically, the feed speed range of the main shaft of numerical control machine tool is 1~10 μm/n, and rollback velocity interval is 1~10 μm/n.Due to
The present invention is that the fine curved blind hole 51 of electric spark is processed, and relative to common electrical discharge machining deslagging, the effect is relatively poor, so feeding
Express delivery a and rollback speed b select bigger numerical value in the case where meeting processing request as far as possible, thus be conducive to deslagging and
Processing.
In the present embodiment, the pulse voltage of the pulse power is 70~220V, and the pulse width of the pulse power is 1
~100 μ s.The range of the surface roughness Ra of the curved blind hole 51 processed is 0.2~1.5 μm.
Curved blind hole processing device 100 and curved method for processing blind hole adaptability provided by the embodiment of the present invention compare
Extensively, a variety of curved blind holes 51 can be processed on the surface of workpiece 50.The loss of tool-electrode 20 is less, can also once side by side
Multiple curved blind holes 51 are processed, processing efficiency is greatly improved, there is very high machining accuracy.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of curved blind hole processing device, for processing curved blind hole on workpiece, it is characterised in that: including with the workpiece
It is oppositely arranged and is used to process the tool-electrode of the workpiece, for clamping and driving the relatively described workpiece of the tool-electrode to turn
It dynamic driver and is electrically connected and is also electrically connected with the tool-electrode and electric for providing pulse with the workpiece
The pulse power, the tool-electrode include for the driver clamp and with the pulse power be electrically connected gripping section and
Arc-shaped setting and its first end are electrically connected at the gripping section and its second end is used to generate electrical fire between the workpiece
Colored electric discharge section, workpiece fixed setting, the shape of the electric discharge section are the described of one section of annular circular arc and arc-shaped setting
The electric spark generated between electric discharge section and the workpiece constantly corrodes and processes the workpiece.
2. curved blind hole processing device as described in claim 1, it is characterised in that: the shape of the electric discharge section is one section of annular
The outer diameter of circular arc, the electric discharge section is 5~30mm, and the internal diameter of the electric discharge section is 4~29.5mm.
3. curved blind hole processing device as claimed in claim 2, it is characterised in that: central angle corresponding to the electric discharge section
Angle is greater than 0 degree and less than 270 degree, and the center of circle corresponding to the electric discharge section is located on the central axis of the gripping section.
4. curved blind hole processing device as claimed in claim 3, it is characterised in that: the tool-electrode further includes parallel described
The linkage section of the central axis of gripping section, one end of the linkage section connect the gripping section, the linkage section it is another
End connection it is described electric discharge section first end, it is described electric discharge section second end towards the workpiece surface to be machined.
5. curved blind hole processing device as claimed in claim 4, it is characterised in that: the linkage section connects the gripping section
One end is located at the gripping section towards the end face of the workpiece.
6. the curved blind hole processing device as described in claim 1-5 any one, it is characterised in that: the curved blind hole machining
Device further includes the stationary fixture for fixing the workpiece, and the surface of the stationary fixture towards the tool-electrode offers
Fixing groove, one end of the workpiece are fixed in the fixing groove, and the stationary fixture includes the bottom plate and two of tiling setting
The side plate that block is oppositely arranged and is fixed on the bottom plate, the bottom plate and two blocks of side plates surround to form the fixing groove.
7. a kind of curved method for processing blind hole, it is characterised in that: including following procedure of processing:
Device preparation process: prepare such as curved blind hole processing device described in any one of claims 1 to 6；
Workpiece initialization step: the workpiece is immersed in cooling down workpiece and the working solution of chip removal and to be placed on scheduled position
It sets so as to form discharge loop between the workpiece, the tool-electrode and the pulse power；
Work pieces process step: fine electric spark electric discharge is generated between the electric discharge section and the workpiece to corrode and process the work
Part, the driver drive the tool-electrode rotation.
8. curved method for processing blind hole as claimed in claim 7, it is characterised in that: the material of the workpiece is mould steel, institute
The material for stating tool-electrode is red copper.
9. curved method for processing blind hole as claimed in claim 7, it is characterised in that: the pulse voltage of the pulse power is 70
~220V, the pulse width of the pulse power are 1~100 μ s.
10. curved method for processing blind hole as claimed in claim 7, it is characterised in that: the revolving speed of the driver is 60~
6000 revs/min, the feed speed of the driver is 1~10 μm/n, and the rollback speed of the driver is 1~10 μm/n.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064600.2A CN108356373B (en) | 2018-01-23 | 2018-01-23 | Curved blind hole processing device and curved method for processing blind hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064600.2A CN108356373B (en) | 2018-01-23 | 2018-01-23 | Curved blind hole processing device and curved method for processing blind hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108356373A CN108356373A (en) | 2018-08-03 |
| CN108356373B true CN108356373B (en) | 2019-07-26 |
Family
ID=63006868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810064600.2A Active CN108356373B (en) | 2018-01-23 | 2018-01-23 | Curved blind hole processing device and curved method for processing blind hole |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109365930B (en) * | 2018-11-20 | 2020-04-17 | 广东轻工职业技术学院 | Electric spark machining device and method for spatial spiral hole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959684A (en) * | 2015-05-27 | 2015-10-07 | 南京航空航天大学 | Conductivity adjustable atomizing medium electric spark discharge ablation and electrolytic combined machining method |
| CN205587794U (en) * | 2016-03-25 | 2016-09-21 | 李溢军 | Symmetrical hole of work piece outer wall processing device |
| CN106141342A (en) * | 2016-07-21 | 2016-11-23 | 江苏大学 | The electric deposition device of a kind of electrode machining gap self-adaptative adjustment and method of work thereof |
| CN206415731U (en) * | 2017-01-18 | 2017-08-18 | 上海昌强重工机械有限公司 | A kind of pipe fitting endoporus R angles carry out the device of graphite electrode numerical control electric spark processing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0420022D0 (en) * | 2004-09-09 | 2004-10-13 | Bladon Jets Ltd | Fans and turbines |
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2018
- 2018-01-23 CN CN201810064600.2A patent/CN108356373B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959684A (en) * | 2015-05-27 | 2015-10-07 | 南京航空航天大学 | Conductivity adjustable atomizing medium electric spark discharge ablation and electrolytic combined machining method |
| CN205587794U (en) * | 2016-03-25 | 2016-09-21 | 李溢军 | Symmetrical hole of work piece outer wall processing device |
| CN106141342A (en) * | 2016-07-21 | 2016-11-23 | 江苏大学 | The electric deposition device of a kind of electrode machining gap self-adaptative adjustment and method of work thereof |
| CN206415731U (en) * | 2017-01-18 | 2017-08-18 | 上海昌强重工机械有限公司 | A kind of pipe fitting endoporus R angles carry out the device of graphite electrode numerical control electric spark processing |
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| CN108356373A (en) | 2018-08-03 |
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