CN212311093U - Electric melting explosion non-circular section deep hole machining electrode - Google Patents
Electric melting explosion non-circular section deep hole machining electrode Download PDFInfo
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- CN212311093U CN212311093U CN202020590452.0U CN202020590452U CN212311093U CN 212311093 U CN212311093 U CN 212311093U CN 202020590452 U CN202020590452 U CN 202020590452U CN 212311093 U CN212311093 U CN 212311093U
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Abstract
The utility model relates to a special type processing technology field especially relates to an electric smelting explodes non-circular cross-section deep hole machining electrode. The electrode mainly comprises an electrode circular hole processing section, an electrode special-shaped hole processing section and an electrode connecting section; the electrode is provided with the guide strip and the chip removal channel, so that on one hand, a guide effect is provided for the processing of the special-shaped deep hole, and on the other hand, the special-shaped deep hole can be cooled in time, so that the processed and exploded chips can be smoothly discharged. The utility model belongs to the electric melting explodes and the organic combination of BTA, provides the innovation technology means for the special-shaped deep hole of difficult processing, and its advantage lies in the size precision and the position precision that have improved the special-shaped deep hole, has guaranteed good processingquality, has shortened process time simultaneously, promotes machining efficiency by a wide margin.
Description
The technical field is as follows:
the utility model relates to a special type processing technology field especially relates to an electric smelting explodes non-circular cross-section deep hole machining electrode.
Background art:
irregular deep hole patterns are irregular, the process is complicated, and machining is difficult to achieve. At present, the typical special-shaped deep hole processing technology mainly comprises the following steps: the machining methods such as electric spark machining, electrolytic machining, laser machining and the like have corresponding disadvantages in the aspects of machining efficiency, machining application range, requirements on clean machining and the like, and have a plurality of defects; the continuous addition of novel high-strength and high-hardness parts made of difficult-to-machine materials provides higher requirements for the quality and the machining efficiency of the special-shaped deep hole machining and the adopted machining method. Based on the current situation, in order to improve the special-shaped deep hole machining efficiency and reduce the production cost, a new machining method needs to be found to manufacture a special electrode so as to meet the requirement of special-shaped deep hole machining.
The electric melting explosion processing technology is to utilize the instantaneous pulse discharge of large current and small voltage to generate high-density electron current to bombard the surface of a workpiece, so as to quickly melt or gasify metal and further erode and remove materials. The special-shaped deep hole machining device has the machining advantages of high efficiency, cleanness, energy conservation, wide machining range, convenience in operation, simple structure and the like, ensures that machining can be efficiently carried out with large allowance of material removal in the machining of the special-shaped section hole, is incomparable to any machining method, and realizes certain development of machining of the special-shaped deep hole by utilizing an electric melting explosion machining technology. Therefore, the special electric melting explosion machining technology is adopted, a proper electrode material is selected according to the hole type of the special-shaped hole and the material of the part to be machined, an electrode special for electric melting explosion special-shaped deep hole machining is designed, and a special electrode is manufactured and applied to special-shaped deep hole machining.
The utility model has the following contents:
the utility model discloses a solve and to have now to process the irregular-shaped deep hole of shape, electrode preparation difficulty reaches thick in the special-shaped deep hole course of working, the finish machining separately leads to the problem of process time overlength, provides an electric smelting and explodes non-circular cross-section deep hole machining electrode.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides an electric melting explosion non-circular cross-section BTA electrode which characterized in that: comprises an electrode connecting section, an electrode special-shaped hole processing section and an electrode round hole processing section; the electrode circular hole machining section, the electrode special-shaped hole machining section and the electrode connecting section are sequentially connected from top to bottom through threads, and a first chip removal hole which is communicated from bottom to bottom is formed in the center;
the electrode connecting section is in a stepped cylindrical shape, a first chip removal hole is formed in the axial center of the electrode connecting section, internal threads are formed in the inner wall of the upper end of the electrode connecting section, and external threads are formed in the lower end of the electrode connecting section;
the electrode special-shaped hole machining section structurally comprises an electrode base body, the shape of the electrode base body is the same as that of the special-shaped hole, a cylindrical end is integrally arranged at the upper part and the lower part of the electrode base body respectively, threads are arranged on the cylindrical ends respectively, and a chip removal groove is formed in one side wall of the electrode base body;
the electrode round hole processing section comprises a hollow column, the diameter of the electrode round hole is the same as that of a basic round hole of a special-shaped hole, the inner wall of the top of the electrode round hole is conical, the inner wall of the lower portion of the electrode round hole is provided with threads, waist-shaped grooves are uniformly and integrally formed in the peripheral wall of the hollow column, guide strips are arranged in the grooves, and a second chip removal hole is formed in the hollow column between every two adjacent guide strips.
Furthermore, 4 guide strips are arranged, are circumferentially spaced by 90 degrees and are uniformly distributed on the electrodes, and the guide strips are made of insulating and wear-resistant materials.
Furthermore, an insulating layer is arranged on the circumference of the special-shaped deep hole machining section.
Furthermore, the chip groove is of a ridge shape.
Compared with the prior missile technology, the utility model has the advantages and the effect as follows:
1) the utility model can be applied to the deep hole processing equipment and the deep hole processing field, and especially for processing difficult-to-process materials and special-shaped hole parts, the processing time can be greatly shortened, the processing quality can be ensured, and the processing efficiency can be improved;
2) the electrode of the utility model has simple and practical structure, strong universality, convenient processing and manufacturing, convenient and reliable connection of each section of the electrode, easy replacement after electrode loss and relatively reduced production cost;
3) the structural shape of the electrode ensures the accuracy of the machining position of the special-shaped hole, the electrode adopts continuous automatic internal chip removal, the smooth discharge of chip bodies and the timely cooling in the machining process can be ensured, and the chip removal and cutting heat problems in the special-shaped deep hole machining process are effectively improved;
4) the utility model adopts a plurality of rows of guide bars for guiding, thereby effectively preventing the electrode from deviating and realizing the high-quality, high-precision and high-efficiency processing of the hole; the guide strip adopts a flexible design, and can be adjusted and replaced flexibly according to different diameters of the processed bottom hole;
5) the whole electrode structure of the utility model has good manufacturability, easy processing and manufacturing, convenient assembly and disassembly, and the electrode can be repeatedly used;
6) the utility model has the advantages that the insulating layer is arranged on the electrode, which can prevent the secondary discharge in the processing process and effectively ensure the processing quality of the hole;
8) the electrode of the utility model has multiple functions and wide application range, can meet the processing of regular hole patterns, can change electrode special-shaped hole processing sections according to different special-shaped hole patterns, meets the processing requirements of different hole patterns, is suitable for the profile modeling of special-shaped deep holes of different hole patterns such as square holes, rhombic holes and the like, and extends and expands the processing universality of the holes; the processing method is safe and reliable and has no pollution to the environment.
Description of the drawings:
FIG. 1 is a schematic diagram of a special hole pattern;
FIG. 2 is a schematic diagram of the structure of an electrode;
FIG. 3 is a top view of an electrode;
FIG. 4 is a schematic view of an electrode connection segment;
FIG. 5 is a schematic view of a special-shaped hole machining section of an electrode;
FIG. 6 is a schematic view of an electrode circular hole machining section;
in the figure: 1. An electrode connection section; 2. electrode special-shaped hole machining section; 3. an electrode circular hole machining section; 4. a thread; 5. an electrode base body; 6. a first chip removal hole; 7. a chip groove; 8. a taper shape; 9. a guide strip; 10. And a second chip removal hole.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the following drawings and specific embodiments.
The utility model discloses a chip removal and refrigerated problem have been solved effectively to dysmorphism hole processing electrode in the course of working, and electrode machining is simple and convenient, and the commonality is strong, and the electric smelting of adoption explodes the improvement that machining method is favorable to machining efficiency, reduces the processing cost.
Example (b):
the machined profile holes are irregular elliptical holes as shown in fig. 1.
The electric melting explosion special-shaped deep hole machining electrode comprises an electrode connecting section 1, an electrode special-shaped hole machining section 2 and an electrode special-shaped hole machining section 3; the electrode circular hole machining section 3, the electrode special-shaped hole machining section 2 and the electrode connecting section 1 are sequentially connected from top to bottom through threads, and a first chip removal hole 6 which is communicated from bottom to bottom is formed in the center; the segments are tightly and securely joined together as shown in figures 2 and 3.
The electrode connecting section 1 is located at the lowest part of the electrode, the outer wall of the electrode connecting section is in a stepped cylindrical shape, external threads are arranged on the circumferential surface of the lower end of the stepped cylindrical shape, internal threads are arranged on the circumference of the inner wall of the upper part, the lower end of the electrode connecting section is connected with the cutter bar through threads, and the upper part of the electrode connecting section is connected with the electrode special-shaped hole machining section 3 through threads.
The electrode special-shaped hole machining section 2 is positioned in the middle of the electrode, and structurally comprises an electrode base body 5, wherein the shape of the electrode base body 5 is the same as that of the special-shaped hole; because an internal chip removal processing mode is adopted, a chip removal hole I6 is arranged in the middle of the electrode special-shaped hole processing section, and the final special-shaped hole is finished by the section; in order to effectively ensure the processing quality, the insulating layers and the staggered chip removal grooves 7 are arranged on the peripheral walls of the electrode base body 5, so that chip removal and cooling are facilitated, heat generated by the electrode special-shaped hole processing section can be timely cooled in the processing process, the exploded chip bodies are guaranteed to be timely discharged out of the hole, and the chip bodies are prevented from being accumulated to cause processing short circuit, as shown in fig. 5.
Above-mentioned electrode round hole processing section 3 is located the uppermost of electrode, including cylindrical cylinder, and the diameter is the same with the basic round hole diameter in dysmorphism hole, and in order to enlarge the effect of cooling and chip removal, its top inner wall sets up to toper 8, and this section is at first carried out the processing of electric melt explosion dysmorphism deep hole, accomplishes circular bottom hole, plays the guide orientation effect for dysmorphism hole processing section. The four peripheral walls of the cylindrical column body are uniformly provided with 4 waist-shaped grooves, guide strips 9 are arranged in the grooves, 4 guide strips 9 are arranged, the circumferential intervals of the guide strips 9 are 90 degrees and are uniformly distributed on the electrodes, the guide strips are made of insulating and wear-resistant materials (bakelite, polytetrafluoroethylene and the like), the guide function can be fully played in the processing process, the electrodes cannot deviate from the center, the processing straightness of the electrodes is ensured, and the guide strips adopt flexible design and can be properly and flexibly adjusted and replaced according to different diameters of processed bottom holes; similarly, in order to timely cool the electrode and smoothly discharge the generated scrap iron, a second scrap-discharging hole 10 is formed in the hollow column between every two adjacent waist-shaped grooves to ensure that the machining is smoothly carried out, as shown in fig. 4.
The utility model discloses an electric melting explosion processing method, dysmorphism deep hole machining electrode can realize that the one-time processing of dysmorphism deep hole is accomplished, can shorten process time, promote machining efficiency, reduction in production cost by a wide margin.
The electrode round hole machining section structure of the utility model is provided with a groove specially used for chip removal and cooling and a guide strip specially used for guiding, so that the deflection can be effectively prevented in the machining process, and a guiding effect is provided for drilling; the chip body is ensured to be discharged in time, the timely cooling is provided, and the problems of guiding, chip removal, cooling and the like in the deep hole machining are effectively solved.
The utility model discloses electrode dysmorphism hole processing section, electrode base member 5's shape is the same with the shape in dysmorphism hole, and electrode dysmorphism hole processing section is equipped with the insulating layer and is used for cooling specially with the passageway of chip removal, makes the course of working not produce secondary discharge, guarantees under the processingquality, makes the bits body discharge smoothly and guarantees timely cooling.
The utility model discloses an electric smelting explodes special type processing method and BTA's organic combination to be applied to among the special-shaped BTA, provide a new approach for special-shaped BTA, can widen the range of application of electric smelting explosion processing technique to a certain extent.
The utility model discloses electrode in use is with the work piece clamping on the deep hole lathe, adopts the centre frame to fix the work piece firmly to guarantee the straightness accuracy requirement in the hole course of working. The electrode is connected with the cutter bar, and when the electrode is in work, the electrode is in axial feed motion, and the workpiece is kept static.
The workpiece is connected with the positive electrode of a pulse power supply and the tool electrode is connected with the negative electrode through the processing principle of electric melting explosion high-voltage and low-current pulse discharge.
Before working, an insulating guide sleeve is arranged at the joint of the machine tool and a workpiece, and the proper feeding speed of the machine tool is set; during working, the upper round hole processing section of the electrode is processed firstly, and when the processing depth is consistent with the length of the round hole processing electrode, a positioning and guiding effect is provided for the subsequent special-shaped hole processing section; when the special-shaped hole base body completely enters the hole, namely the special-shaped hole is machined and formed, and an insulating layer is arranged around the machining section of the special-shaped hole, so that only the front end part of the electrode discharges; the processed surface instantly generates high temperature to melt or gasify under the bombardment of high-density electron current gathered on the electrode, the exploded micro particles are rapidly cooled and discharged along a chip discharge channel under the action of high-pressure cooling liquid (the pressure of the cooling liquid is generally 2-10 MPa), and the processing process is accompanied with the sound of explosion of crisp crackle iron chips.
The utility model discloses insulating problem and sealed problem have still been solved: the workpiece and the cutter bar are required to be insulated from the machine tool, so that the workpiece is insulated from the machine tool by adopting insulating wear-resistant materials such as bakelite, polytetrafluoroethylene and the like, the cutter bar is embedded in a PVC pipe for insulation, and is bonded and fixed by using high-temperature glue, so that the danger caused by the integral conduction of the machine tool is avoided; the sealing problem is a key link of processing, pressure loss can be caused due to poor sealing effect, and burst scraps cannot be well discharged, so that the sealing effect is ensured by adopting modes of an O-shaped ring, a special sealing end cover and the like; the straightness of the workpiece is one of the necessary conditions for ensuring the quality, therefore, the workpiece must be aligned before processing, and meanwhile, in order to prevent the cutter bar from bending and deforming due to overlong length, an adjustable center frame is adopted at the proper position of the cutter bar, the deflection of the cutter bar can be reduced after the cutter bar is fixedly locked, and meanwhile, the straightness of the machine tool is adjusted to the maximum extent, and the error accumulation is reduced.
The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and it will be apparent to those skilled in the art that a plurality of modifications and improvements may be made without departing from the inventive concept of the present invention, and all of these modifications and improvements fall within the protection scope of the present invention.
Claims (4)
1. The utility model provides an electric melting explosion non-circular cross-section BTA electrode which characterized in that: comprises an electrode connecting section (1), an electrode special-shaped hole processing section (2) and an electrode round hole processing section (3); the electrode circular hole machining section (3), the electrode special-shaped hole machining section (2) and the electrode connecting section (1) are sequentially connected from top to bottom through threads, and a first chip removal hole (6) which is communicated from bottom to bottom is formed in the center;
the electrode connecting section (1) is in a stepped cylindrical shape, a first chip removal hole (6) is formed in the axial center of the electrode connecting section, internal threads are formed in the inner wall of the upper end of the electrode connecting section (1), and external threads are formed in the lower end of the electrode connecting section;
the electrode special-shaped hole machining section (2) structurally comprises an electrode base body (5), wherein the shape of the electrode base body (5) is the same as that of a special-shaped hole, the upper part and the lower part of the electrode base body are respectively and integrally provided with a cylindrical end, the cylindrical ends are respectively provided with threads, and one side wall of the electrode base body (5) is provided with a chip removal groove (7);
the electrode round hole machining section (3) comprises a hollow column, the diameter of the electrode round hole machining section is the same as that of a basic round hole of a special-shaped hole, the inner wall of the top of the electrode round hole machining section is set to be a conical shape (8), the inner wall of the lower portion of the electrode round hole machining section is provided with threads, waist-shaped grooves are uniformly and integrally formed in the peripheral wall of the hollow column, guide strips (9) are arranged in the grooves, and a second chip removal hole (10) is formed in the hollow column between every.
2. An electrofusion non-circular cross-section deep hole machining electrode according to claim 1, characterised in that: the guide strips (9) are provided with 4 guide strips, are circumferentially spaced by 90 degrees and are uniformly distributed on the electrodes, and the guide strips are made of insulating and wear-resistant materials.
3. An electrofusion non-circular cross-section deep hole machining electrode according to claim 1 or 2, characterised in that: the circumference of the electrode special-shaped hole machining section (2) is provided with an insulating layer.
4. An electrofusion non-circular cross-section deep hole machining electrode according to claim 3, characterised in that: the chip groove (7) is of a ridge shape.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020590452.0U CN212311093U (en) | 2020-04-20 | 2020-04-20 | Electric melting explosion non-circular section deep hole machining electrode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020590452.0U CN212311093U (en) | 2020-04-20 | 2020-04-20 | Electric melting explosion non-circular section deep hole machining electrode |
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| CN212311093U true CN212311093U (en) | 2021-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111375848A (en) * | 2020-04-20 | 2020-07-07 | 西安工业大学 | Electric melting explosion special-shaped deep hole machining electrode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111375848A (en) * | 2020-04-20 | 2020-07-07 | 西安工业大学 | Electric melting explosion special-shaped deep hole machining electrode |
| CN111375848B (en) * | 2020-04-20 | 2024-10-18 | 西安工业大学 | Electric melting explosion special-shaped deep hole machining electrode |
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