CN210996928U - Electrode for short arc milling - Google Patents
Electrode for short arc milling Download PDFInfo
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- CN210996928U CN210996928U CN201921761354.2U CN201921761354U CN210996928U CN 210996928 U CN210996928 U CN 210996928U CN 201921761354 U CN201921761354 U CN 201921761354U CN 210996928 U CN210996928 U CN 210996928U
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Abstract
The utility model discloses an electrode for short arc milling, which relates to the technical field of short arc milling, and comprises an electrode body and a central through hole, wherein the central through hole is arranged on the central axis of the electrode body and is used for inputting working fluid into a processing gap between the electrode and a workpiece; the auxiliary flushing hole is arranged along the axis of the electrode body and is positioned on the outer side of the central through hole and used for assisting the central through hole to conduct working liquid; the chip removal groove is formed on the surface of the electrode body, so that the surface of the electrode body forms a discontinuous surface for chip removal and heat dissipation.
Description
Technical Field
The utility model relates to a short electric arc milling process technical field specifically is an electrode for short electric arc milling process.
Background
The short arc milling technology is a non-contact discharge processing technology developed in recent years, solves the problems of great processing difficulty, extremely low processing efficiency, serious tool abrasion, extremely high processing cost and the like of difficult-to-process materials represented by high-temperature alloys, and breaks through a series of technical bottlenecks of aerospace engine development and batch production. The short arc machining is used as a new development direction of the electric discharge machining in the special machining technology, inherits the advantages of the electric discharge machining, is not limited by mechanical properties such as strength, hardness and toughness of metal materials, and has the advantages of large material removal amount, high machining efficiency and the like.
The short arc milling process adopts an electric discharge processing mode that a workpiece is used as an anode (positive pole) and a tool electrode is used as a cathode (negative pole). Although short arc machining has achieved widespread use in turning and milling, the problems of large electrode wear and low surface quality in short arc machining are particularly acute, particularly when removing workpiece material, with a ratio of tool electrode wear to workpiece removal of about 5%. Therefore, it is urgent to solve the problem of reducing the electrode loss.
The electrode used in the existing short arc milling is mainly a hollow cylindrical electrode, and has the following defects: (1) the hollow cylindrical electrode only has a single inner flushing hole, the flushing force is insufficient, the utilization rate of a working fluid medium is low, and the processing efficiency is reduced; (2) when a workpiece with a hole is machined, the heat of a machining area is continuously increased, the workpiece is easy to burn, the corroded object cannot be removed in time, the electric corrosion product is not easy to be brought out by working fluid through a machining gap of a workpiece electrode, and the surface quality of the workpiece is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electrode for short electric arc milling to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an electrode for short arc milling, comprising an electrode body and:
the central through hole is formed on the central axis of the electrode body and is used for inputting working liquid into a machining gap between the electrode and a workpiece;
the auxiliary flushing hole is arranged along the axis of the electrode body and is positioned on the outer side of the central through hole and used for assisting the central through hole to conduct working liquid;
the chip removal groove is formed on the surface of the electrode body, so that the surface of the electrode body forms a discontinuous surface for chip removal and heat dissipation.
As a further aspect of the present invention: the cross section of the central through hole is circular.
As a further aspect of the present invention: the number of the auxiliary flushing holes is multiple, and the auxiliary flushing holes are arranged at equal intervals along the outer circumference of the central through hole.
As a further aspect of the present invention: the chip grooves extend upwards from the bottom end of the electrode body, are of spiral structures and are a plurality of.
As a further aspect of the present invention: the tail end of the chip groove is provided with a chute.
Compared with the prior art, the beneficial effects of the utility model are that: the central through hole and the auxiliary flushing hole enable the flushing area to be large enough, and the phenomenon that heat is increased sharply during hole type machining is effectively reduced; the chip removal groove can effectively remove chips and also plays a role in timely heat dissipation, and the chute at the top end of the chip removal groove is beneficial to smoothly discharging the etched and removed substances.
Drawings
Fig. 1 is a schematic view of a structure of an electrode for short arc milling.
FIG. 2 is a schematic cross-sectional view of an electrode for short arc milling.
Fig. 3 is a schematic structural diagram of a chip groove in an electrode for short arc milling.
Fig. 4 is a schematic structural diagram of a hollow cylindrical electrode in the prior art when a hole is machined.
Fig. 5 is a schematic structural view of the electrode body in example 1 when a hole is formed.
In the figure: 1-electrode body, 101-central through hole, 102-auxiliary flushing hole, 103-chip groove and 104-inclined groove.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Example 1
Referring to fig. 1 to 3, in an embodiment of the present invention, an electrode for short arc milling includes an electrode body 1;
the central through hole 101 is formed on the central axis of the electrode body 1, is used for inputting working fluid into a machining gap between the electrode and a workpiece, and has a heat dissipation effect on the electrode body 1, and the cross section of the central through hole 101 is circular;
the auxiliary flushing hole 102 is arranged along the axis of the electrode body 1 and is positioned outside the central through hole 101 and used for guiding the working fluid into the central through hole 101;
and the chip removal groove 103 is formed on the surface of the electrode body 1, so that the surface of the electrode body 1 forms a discontinuous surface for removing chips and dissipating heat.
In this embodiment, the auxiliary flushing hole 102 can increase the strength and flushing area of the processing industry when processing the workpiece, so as to flush the processing surface of the workpiece in time, reduce the temperature of the electrode body 1, and meanwhile, due to the effect of the chip discharge groove 103, the purpose of discharging the erosion object in time is achieved along with the rotation of the electrode body 1, thereby effectively improving the processing quality of the workpiece.
Specifically, the number of the auxiliary flushing holes 102 is multiple, and the auxiliary flushing holes 102 are arranged at equal intervals along the outer circumference of the central through hole 101.
As a preferred embodiment, the chip grooves 103 extend upwards from the bottom end of the electrode body 1, the chip grooves 103 are in a spiral structure, and the number of the chip grooves 103 is several. In addition, in order to facilitate chip removal, the chute 104 is arranged at the tail end of the chip removal groove 103, so that smooth chip removal is facilitated, and the possibility of blockage of the chip removal groove 103 is reduced.
In practical application, taking the electrode body 1 made of graphite material as an example, the diameter is 35mm, the length is 150mm, the diameter of the central through hole 101 is 10mm, the width of the auxiliary flushing hole 102 is 5mm, the number of the auxiliary flushing holes is 3, the number of the chip grooves 103 is three, the cross-sectional diameter is 5mm, and the length of the inclined groove 104 is 2.5 mm.
In short arc milling, the electrode body 1 is attached to a machine tool rotating spindle, the electrode body 1 is connected to the negative electrode of a discharge power supply, and the workpiece is connected to the positive electrode of the discharge power supply, and positive polarity machining is employed. After the machining is started, due to the structure of the electrode body 1, compared with the existing common cylindrical hollow internal flushing electrode, the auxiliary flushing hole 102 is added on the basis of the central through hole 101, the problem of electrode loss is greatly reduced, and the sufficient pressure of liquid filling in a machining area is realized. When a working medium in a machining gap is broken down, an arc discharge formed between the electrode body 1 and a workpiece erodes the workpiece material, and the chip discharge groove 103 can effectively discharge the eroded material and prevent short circuit; the chip removal groove 103 can effectively remove chips and also plays a role in timely heat dissipation, and the chute 104 at the top end of the chip removal groove 103 is beneficial to smooth discharge of erosion matters.
As shown in fig. 4 and 5, in the process of milling the shaped hole by using the short arc, when the hollow cylindrical electrode in the existing short arc milling machine tool is used for milling the shaped hole by using the short arc, most of the removed objects are distributed in a processing area (fig. 4), so that the chip removal is difficult, heat is gathered, and the quality of the processed surface is reduced; adopt this application the electrode when carrying out short electric arc milling process type hole, can effectively play towards liquid chip removal effect (fig. 5), promoted machined surface's quality, improved the homogeneity of electrode loss and machining dimension's precision.
It should be particularly noted that in the technical solution, the central through hole 101 and the auxiliary flushing hole 102 make the flushing area large enough, so as to effectively reduce the phenomenon of rapid increase of heat during hole-type machining; the chip removal groove 103 can effectively remove chips and also plays a role in timely heat dissipation, and the chute 104 at the top end of the chip removal groove 103 is beneficial to smooth discharge of erosion matters.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (5)
1. An electrode for short arc milling, characterized by comprising an electrode body (1) and:
a central through hole (101) which is formed on the central axis of the electrode body (1) and is used for inputting working fluid into a machining gap between the electrode and a workpiece;
the auxiliary flushing hole (102) is arranged along the axis of the electrode body (1) and is positioned outside the central through hole (101) and used for assisting the central through hole (101) to conduct working fluid;
the chip removal groove (103) is formed in the surface of the electrode body (1) to enable the surface of the electrode body (1) to form a discontinuous surface for chip removal and heat dissipation.
2. An electrode for short arc milling according to claim 1, characterized in that the cross-section of the central through hole (101) is circular.
3. An electrode for short arc milling according to claim 1, characterized in that the number of the auxiliary flushing holes (102) is plural and arranged at equal intervals along the outer circumference of the central through hole (101).
4. An electrode for short arc milling according to claim 1, 2 or 3, characterized in that the chip flutes (103) extend upwards from the bottom end of the electrode body (1), the chip flutes (103) are of a spiral structure, and the number of the chip flutes (103) is several.
5. An electrode for short arc milling according to claim 4, characterized in that the end of the chip flute (103) is provided with a chute (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921761354.2U CN210996928U (en) | 2019-10-21 | 2019-10-21 | Electrode for short arc milling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921761354.2U CN210996928U (en) | 2019-10-21 | 2019-10-21 | Electrode for short arc milling |
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| CN210996928U true CN210996928U (en) | 2020-07-14 |
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| CN201921761354.2U Active CN210996928U (en) | 2019-10-21 | 2019-10-21 | Electrode for short arc milling |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475500A (en) * | 2020-11-19 | 2021-03-12 | 潍坊科技学院 | Large-thickness workpiece linear cutting joint cutting electrical erosion matter discharging device |
| CN113070537A (en) * | 2021-04-02 | 2021-07-06 | 大连理工大学 | Hollow circulation auxiliary electrode structure for 3D printing |
| CN113510324A (en) * | 2021-07-09 | 2021-10-19 | 西安工业大学 | Electrode for deep hole machining of electric melting explosion |
| CN113510323A (en) * | 2021-03-30 | 2021-10-19 | 深圳航科新材料有限公司 | Liquid flushing electrode for cavitation jet flow auxiliary arc machining |
-
2019
- 2019-10-21 CN CN201921761354.2U patent/CN210996928U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475500A (en) * | 2020-11-19 | 2021-03-12 | 潍坊科技学院 | Large-thickness workpiece linear cutting joint cutting electrical erosion matter discharging device |
| CN112475500B (en) * | 2020-11-19 | 2021-12-28 | 潍坊科技学院 | Large-thickness workpiece linear cutting joint cutting electrical erosion matter discharging device |
| CN113510323A (en) * | 2021-03-30 | 2021-10-19 | 深圳航科新材料有限公司 | Liquid flushing electrode for cavitation jet flow auxiliary arc machining |
| CN113070537A (en) * | 2021-04-02 | 2021-07-06 | 大连理工大学 | Hollow circulation auxiliary electrode structure for 3D printing |
| CN113070537B (en) * | 2021-04-02 | 2022-02-18 | 大连理工大学 | Hollow circulation auxiliary electrode structure for 3D printing |
| CN113510324A (en) * | 2021-07-09 | 2021-10-19 | 西安工业大学 | Electrode for deep hole machining of electric melting explosion |
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