CN110653435A - Insulating knife handle device for electric arc micro-explosion machining and machining equipment - Google Patents
Insulating knife handle device for electric arc micro-explosion machining and machining equipment Download PDFInfo
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- CN110653435A CN110653435A CN201910975457.7A CN201910975457A CN110653435A CN 110653435 A CN110653435 A CN 110653435A CN 201910975457 A CN201910975457 A CN 201910975457A CN 110653435 A CN110653435 A CN 110653435A
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- Prior art keywords
- flushing
- half shaft
- insulating
- lower half
- oil seal
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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
Abstract
The invention provides an insulating tool handle device for electric arc micro-explosion machining and electric arc micro-explosion machining equipment. One end of the insulating connecting part is connected with the upper half shaft, and the other end of the insulating connecting part is connected with the lower half shaft. The tool electrode is mounted to the lower half shaft. The lower half shaft is provided with a first inner flushing channel, the tool electrode is provided with a second inner flushing channel, and the first inner flushing channel is communicated with the second inner flushing channel. The invention electrically isolates the part of the tool shank inserted with the power spindle from the charged part of the internal flushing liquid, and limits the insulation function outside the machine tool and the power spindle, thereby being applied to the machine tool adopting the high-speed and high-precision electric spindle and effectively avoiding the current of the tool shank device from influencing the electric structure of the electric spindle. The insulating knife handle device effectively solves the safety problem of electric arc micro-explosion machining, ensures stable operation of the electric arc micro-explosion machining process, and is generally used for electric arc micro-explosion machining machine tool equipment in various forms.
Description
Technical Field
The invention relates to the technical field of metal processing, in particular to an insulating knife handle device for electric arc micro-explosion processing and electric arc micro-explosion processing equipment.
Background
The electric arc micro-explosion processing technology is a novel material reduction processing technology with high efficiency, low cost and environmental protection, the technology utilizes high-energy density electric arc plasma which is controlled and evolved by a mechanical-liquid coupling arc breaking mechanism to melt metal materials, utilizes high-speed high-pressure flushing liquid to cool and throw away molten metal, achieves the effect of high-efficiency processing of the metal materials, and is applied in the field of numerical control machines at present. However, in the actual machining process, the electric arc generating device needs to be connected with the current of hundreds of amperes, so that the electric arc micro-explosion machining equipment needs to ensure that the machine tool body is not influenced by the machining current, and an effective insulation protection design is needed.
In the prior art, the insulation protection of the electric arc micro-explosion processing equipment generally only aims at the power main shaft and the machine tool body, and the electric isolation is realized by installing an insulation part between the matching surfaces of the power main shaft and the machine tool body. In the scheme, the electric arc generating device is directly connected with the power main shaft and is connected with the machining current, and the machine tool body is isolated and protected by the insulating part. However, this solution is effective for the usual mechanical-pulley driven spindles, but implementation on high performance electric spindles would create significant safety problems. The stator and the rotor of the motor are integrated in the electric spindle, and necessary electric and sensing parts are also installed, so that the body structure of the electric spindle can be damaged by the large current communicated with the electric arc generating device, the electric arc generating device loses working capacity, and safety accidents such as casualties and the like can be generated in serious cases.
In summary, the existing insulation protection scheme of the arc micro-explosion processing equipment can only ensure the applicability of the mechanical main shaft, and no effective insulation scheme aiming at the aspect of the high-performance electric main shaft exists, so that the improvement of the performance of the arc micro-explosion processing technology and the application and popularization are not facilitated, and the processing advantages of the technology cannot be fully exerted.
Disclosure of Invention
The invention mainly aims to provide an insulating knife handle device for electric arc micro-explosion machining and electric arc micro-explosion machining equipment, and aims to solve the technical problems.
In order to achieve the above object, the present invention provides an insulating tool holder device for arc micro-explosion machining, the insulating tool holder device comprising:
the upper half shaft is used for being connected with an electric main shaft or a mechanical main shaft of the electric arc micro-explosion processing equipment;
one end of the insulating connecting part is connected with the upper half shaft;
the lower half shaft is connected with the other end of the insulating connecting part and is provided with a first inner flushing channel;
the tool electrode is arranged on the lower half shaft and is provided with a second inner flushing channel which is communicated with the first inner flushing channel.
In an embodiment, the insulating connecting portion is an insulating coupling, the insulating coupling includes an insulating elastic ring, a first half coupling and a second half coupling, the first half coupling is connected with the upper half shaft, the second half coupling is connected with the lower half shaft, and the insulating elastic ring is installed between the first half coupling and the second half coupling, so that the first half coupling and the second half coupling are electrically isolated.
In an embodiment, the insulating tool shank device further comprises a fixed shell, the fixed shell is sleeved on the outer peripheral surface of the lower half shaft, the fixed shell surrounds to form a liquid cavity, and the liquid cavity, the first inner flushing channel and the second inner flushing channel are sequentially communicated.
In one embodiment, the periphery of the lower half shaft is further provided with a flushing circumferential hole, and the liquid cavity is communicated with the first inner flushing channel through the flushing circumferential hole; and one end of the lower half shaft, which is far away from the insulating connecting part, is also provided with an electrode clamping part, and the electrode clamping part is used for clamping the tool electrode.
In an embodiment, the insulating tool holder device further comprises a flushing block and a flushing pipe, the flushing block is arranged on the side face of the fixed shell, and the flushing pipe is installed in the flushing block.
In an embodiment, the liquid flushing block is provided with a liquid flushing pipe mounting hole for inserting the liquid flushing pipe, the bottom of the liquid flushing pipe mounting hole is provided with a spring, the top end portion of the liquid flushing block is provided with a liquid flushing pipe fixing block, the liquid flushing pipe fixing block is used for enabling the liquid flushing pipe to be fixedly mounted in the liquid flushing pipe mounting hole, and the spring is used for providing a buffering acting force when the liquid flushing pipe is inserted into the mechanical spindle or the electric spindle.
In one embodiment, the sides of the flush tube and the flush block are perforated to allow the interior channel of the flush tube to communicate with the liquid chamber.
In an embodiment, the fixed housing has a first bearing seat and a second bearing seat formed on an inner side wall thereof adjacent to the lower half shaft, the lower half shaft has a first bearing and a second bearing sleeved on an outer periphery thereof, the first bearing is mounted in the first bearing seat, the second bearing is mounted in the second bearing seat, and the first bearing and the second bearing are arranged along an axis of the tool electrode and are disposed between the lower half shaft and the fixed housing.
In an embodiment, the fixed shell is close to the inner side wall of the lower half shaft and is provided with a first oil seal seat and a second oil seal seat, the periphery of the lower half shaft is further sleeved with a first oil seal and a second oil seal, the first oil seal is installed on the first oil seal seat, the second oil seal is installed on the second oil seal seat, the first oil seal and the second oil seal are both arranged between the first bearing and the second bearing, and the first oil seal, the second oil seal and the fixed shell jointly enclose to form the liquid cavity.
The invention also provides electric arc micro-explosion processing equipment, which comprises:
a machine tool;
the power main shaft is arranged on the machine tool and comprises any one of an electric main shaft and a mechanical main shaft;
the insulating tool holder device is detachably connected to the power main shaft.
According to the insulating knife handle device for electric arc micro-explosion machining, the insulating connecting part is arranged between the upper half shaft and the lower half shaft, so that the part of the knife handle inserted into the power main shaft is electrically isolated from the charged part of the inner flushing liquid, the insulating function is limited outside a machine tool and the power main shaft, the insulating knife handle device can be applied to the machine tool adopting the high-speed high-precision electric main shaft, and the current of the knife handle device is effectively prevented from influencing the electric structure of the electric main shaft. This insulating handle of a knife device design is exquisite, has effectively solved the security problem that the electric arc explodes the processing a little, has guaranteed the stability of course of working and has gone on to it explodes machine tool equipment a little to be general in the electric arc of multiple form, including the lathe of taking mechanical spindle and the lathe of electrified spindle. In addition, the tool handle structure meets the requirements of the electric arc micro-explosion processing on the rotation and the inner flushing liquid of the tool electrode, and the smooth proceeding of the electric arc micro-explosion processing process is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic external structural view of an embodiment of an insulated tool holder apparatus according to the present invention;
FIG. 2 is a schematic view of the internal structure of the insulated tool shank apparatus shown in FIG. 1;
FIG. 3 is an exploded view of the insulated handle apparatus of FIG. 1;
fig. 4 is a schematic view of the insulated tool shank apparatus shown in fig. 1 interfacing with a power spindle.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Insulating |
10 | |
| 20 | Insulating connection | 21 | First half coupling |
| 22 | Insulating elastic ring | 23 | Second |
| 30 | Lower half shaft | 31 | First inner flushing |
| 32 | Flushing |
40 | Tool electrode |
| 41 | Second |
50 | Fixed outer casing |
| 51 | |
52 | Upper end cap |
| 53 | |
60 | |
| 61 | Liquid flushing pipe fixing block | 62 | |
| 70 | |
80 | Electrode |
| 81 | |
82 | Chuck |
| 91 | First bearing | 92 | Second bearing |
| 93 | First oil seal | 94 | Second oil seal |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, the insulated tool shank apparatus 1 includes an upper half shaft 10, an insulated connecting portion 20, a lower half shaft 30, and a tool electrode 40. Wherein, the upper half shaft 10 is used for connecting to an electric main shaft or a mechanical main shaft of the electric arc micro-explosion processing equipment. The insulating connecting portion 20 is disposed between the upper half shaft 10 and the lower half shaft 30, specifically, one end of the insulating connecting portion 20 is connected to the upper half shaft 10, and the other end of the insulating connecting portion 20 is connected to the lower half shaft 30. And the tool electrode 40 is mounted to the lower half shaft 30. Wherein the lower half shaft 30 is provided with a first inner flushing fluid channel 31, the tool electrode 40 is provided with a second inner flushing fluid channel 41, and the first inner flushing fluid channel 31 is communicated with the second inner flushing fluid channel 41.
It should be noted that, in the prior art, a dedicated electrical insulating device is designed between a machine tool and a machine spindle for electric arc micro-explosion machining, so that the machine spindle is insulated from a machine tool body, and the current of the electric arc generating device is prevented from being transmitted to the machine tool through the machine spindle and causing damage to the interior of the machine tool. However, the above insulation scheme is only for a machine tool using a mechanical spindle, and is not applicable to a machine tool using an electric spindle with high speed and high accuracy. Because the energy conversion devices such as the motor stator and the rotor are integrated in the electric spindle, and only the electric insulation device is arranged between the electric spindle and the machine tool, the interference current of the electric arc generating device still can interfere and even damage the mechanical and electrical structures in the electric spindle, thereby causing serious safety accidents. The mechanical main shaft consists of a main shaft, a bearing, a transmission part (a gear or a belt wheel) and the like, so that the current of the electric arc micro-explosion generating device cannot influence the internal structure and the performance of the mechanical main shaft. The insulation scheme in the prior art can only ensure the insulation between the mechanical main shaft and the machine tool body, has no applicability to a precise numerical control machine tool using an electric main shaft, limits the performance improvement and application promotion of electric arc micro-explosion processing equipment, and cannot fully exert the processing potential of the electric arc micro-explosion processing equipment.
The invention provides an insulating tool handle device for electric arc micro-explosion machining, which is characterized in that an insulating connecting part is arranged between an upper half shaft and a lower half shaft, so that the part of the tool handle, which is inserted into a power main shaft, is electrically isolated from the charged part of an internal flushing liquid, and the insulating function is limited outside a machine tool and the power main shaft, so that the insulating tool handle device can be applied to the machine tool adopting a high-speed and high-precision electric main shaft, and the current of the tool handle device is effectively prevented from influencing the electric structure of the electric main shaft. This insulating handle of a knife device 1 design is exquisite, has effectively solved the security problem that the electric arc explodes the processing a little, has guaranteed the stability of course of working and has gone on to it explodes machine tool equipment a little to be general in the electric arc of multiple form, including the lathe of taking mechanical spindle and the lathe of electrified spindle. Meanwhile, the tool handle structure meets the requirements of the electric arc micro-explosion processing on the rotation and the inner flushing liquid of the tool electrode 40, and the smooth proceeding of the electric arc micro-explosion processing process is ensured.
In an embodiment, referring to fig. 1 and 3, the insulating connecting portion 20 is an insulating coupling, and the insulating coupling includes an insulating elastic ring 22, a first coupling half 21 and a second coupling half 23. The first coupling half 21 is connected to the upper half shaft 10, the second coupling half 23 is connected to the lower half shaft 30, and the insulating elastic ring 22 is installed between the first coupling half 21 and the second coupling half 23 to electrically isolate the first coupling half 21 from the second coupling half 23. In this embodiment, the insulating coupling is a quincunx elastic coupling, and the insulating elastic ring 22 is a quincunx elastic ring, wherein the quincunx elastic ring is installed between the claws of the two half-couplings with the same shape, so as to connect the two half-couplings. The quincunx elastic coupling has the performance of compensating relative offset of two shafts, damping and buffering. In this embodiment, the middle elastic ring is made of an insulating material such as plastic, and the two coupling halves are made of a metal material (the two coupling halves do not contact each other). It will be appreciated that in other embodiments the resilient ring and one of the coupling parts are of insulating material, or alternatively the resilient ring and both coupling parts are of insulating material. In addition, the insulating connection portion 20 may also be made of other types of insulating connectors as long as the upper half shaft 10 and the lower half shaft 30 are electrically isolated from each other, and the present invention is not limited to the specific structure and the specific material of the insulating connection portion 20.
In an embodiment, please refer to fig. 1 and fig. 2, the insulated tool shank apparatus 1 further includes a fixed housing 50, the fixed housing 50 is sleeved on the outer peripheral surface of the lower half shaft 30, the fixed housing 50 encloses to form a liquid cavity 51, and the liquid cavity 51, the first inner flushing channel 31 and the second inner flushing channel 41 are sequentially communicated. Referring to fig. 4, it should be noted that after the insulated tool holder device 1 is butted with the power spindle, during the electric arc micro-explosion machining process, the fixed housing 50 of the insulated tool holder device 1 is relatively fixed, and the upper half shaft 10, the insulated connecting portion 20, the lower half shaft 30 and the tool electrode 40 all rotate along with the rotation axis of the power spindle.
In one embodiment, please refer to fig. 2 and 3, a flushing circumferential hole 32 is further formed in the outer periphery of the lower half shaft 30, and the liquid cavity 51 is communicated with the first inner flushing channel 31 through the flushing circumferential hole 32. In this embodiment, two flushing circumferential holes 32 are formed on both the left and right sides of the lower half shaft 30, and in other embodiments, other numbers of flushing circumferential holes 32 may be formed on the lower half shaft 30.
In an embodiment, referring to fig. 1 to 3, the insulated knife handle device 1 further includes a liquid flushing block 60 and a liquid flushing pipe 70, the liquid flushing block 60 is disposed on a side surface of the fixed housing 50, and the liquid flushing pipe 70 is installed in the liquid flushing block 60. In this embodiment, the insulated knife handle device 1 has two flushing blocks 60 and two flushing pipes 70, and the two flushing blocks 60 and the two flushing pipes 70 are respectively installed at the left and right sides of the fixed housing 50, wherein the flushing pipes 70 are used for communicating with the liquid supply pipe of the power spindle to supply flushing liquid and electricity to the tool electrode 40. It is understood that in other embodiments, only one flush block and one flush tube may be provided, and the present invention is not limited to the number of flush blocks 60 and flush tubes 70. When the insulating tool shank device 1 is butted with the power spindle, as shown in fig. 4, the designed flushing pipe structure can be quickly butted with a liquid supply interface fixed on a machine tool body, so that the inner flushing liquid enters an inner flushing liquid channel of the insulating tool shank device 1 through a flushing pipe and is finally conveyed to an arc discharge machining area. The flushing liquid is beneficial to breaking electric arcs, preventing the electric arcs from being over-burnt and controlling the electric arcs to evolve, thereby being beneficial to removing electric corrosion processing products and cooling workpieces.
In an embodiment, referring to fig. 2 and 3, the liquid flushing block 60 is provided with a liquid flushing pipe mounting hole for inserting the liquid flushing pipe 70, a spring 62 is disposed at the bottom of the liquid flushing pipe mounting hole, a liquid flushing pipe fixing block 61 is disposed at the top end portion of the liquid flushing block 60, the liquid flushing pipe fixing block 61 is used for tightly mounting the liquid flushing pipe 70 in the liquid flushing pipe mounting hole, and the spring 62 is used for providing a buffering force for the liquid flushing pipe 70 to be inserted into the mechanical spindle or the electric spindle.
In one embodiment, referring to fig. 3, an electrode clamping portion 80 is further disposed at an end of the lower half shaft 30 away from the insulating connecting portion 20, and the electrode clamping portion 80 is used for clamping the tool electrode 40. In this embodiment, the electrode clamping portion 80 includes a collet chuck 81 and a collet nut 82, the collet chuck 81 is installed in a lower tapered hole of the lower half shaft 30, the tool electrode 40 is inserted into the interior of the collet chuck 81, and the collet nut 82 is installed in a lower end thread of the lower half shaft 30 and abuts against a lower tapered surface of the collet chuck 81, so that the collet chuck 81 clamps the tool electrode 40.
In an embodiment, referring to fig. 2 and 3, the fixed housing 50 has a first bearing seat and a second bearing seat formed on an inner sidewall close to the lower half shaft 30, a first bearing 91 and a second bearing 92 are sleeved on an outer periphery of the lower half shaft 30, the first bearing 91 is installed in the first bearing seat, and the second bearing 92 is installed in the second bearing seat. The first bearing 91 and the second bearing 92 are arranged along the axis of the tool electrode 40 and are provided between the lower half shaft 30 and the fixed housing 50. The bearing comprises an inner ring and an outer ring, wherein the inner ring is in transition fit with the lower half shaft 30 and rotates along with the lower half shaft 30; the outer ring is in interference fit with the fixed housing 50, and the outer ring is stationary relative to the fixed housing 50.
In an embodiment, please refer to fig. 2 and 3, the fixed housing 50 has a first oil seal seat and a second oil seal seat near the inner side wall of the lower half shaft 30, a first oil seal 93 and a second oil seal 94 are further sleeved on the outer circumference of the lower half shaft 30, the first oil seal 93 is mounted on the first oil seal seat, and the second oil seal 94 is mounted on the second oil seal seat. The first oil seal 93 and the second oil seal 94 are arranged between the first bearing 91 and the second bearing 92, and the first oil seal 93, the second oil seal 94 and the fixed shell 50 jointly enclose the liquid cavity 51. The first oil seal 93 and the second oil seal 94 are provided to prevent leakage of the internal flushing liquid in the liquid chamber 51. Preferably, the pressure-resistant capability of the first oil seal 93 and the second oil seal 94 is greater than 2Mpa, which is a TC skeleton oil seal or a PTFE polytetrafluoroethylene oil seal.
In an embodiment, please refer to fig. 2 and fig. 3, an upper end cover 52 and a lower end cover 53 are further sleeved on the periphery of the lower half shaft 30, mounting openings are respectively formed at two ends of the fixed housing 50, the lower half shaft 30 penetrates through the two mounting openings, wherein the upper end cover 52 covers the mounting opening close to the first bearing 91, and the lower end cover 53 covers the mounting opening close to the second bearing 92.
The invention also provides an electric arc micro-explosion processing device (not shown in the attached drawing). The electric arc micro-explosion machining equipment comprises a machine tool, a power main shaft and an insulating tool shank device 1, wherein the power main shaft is installed on the machine tool, the insulating tool shank device 1 is detachably connected to the power main shaft, and the power main shaft comprises any one of an electric main shaft and a mechanical main shaft. For the specific structure of the insulated knife handle device 1, please refer to the above-mentioned embodiment. Since the arc micro-explosion processing equipment adopts all the technical schemes of all the embodiments, at least all the beneficial effects brought by the technical schemes of the embodiments are achieved, and detailed description is omitted.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides an insulating handle of a knife device for processing is exploded a little to electric arc which characterized in that includes:
the upper half shaft is used for being connected with an electric main shaft or a mechanical main shaft of the electric arc micro-explosion processing equipment;
one end of the insulating connecting part is connected with the upper half shaft;
the lower half shaft is connected with the other end of the insulating connecting part and is provided with a first inner flushing channel;
the tool electrode is arranged on the lower half shaft and is provided with a second inner flushing channel which is communicated with the first inner flushing channel.
2. The insulated tool shank device according to claim 1, wherein the insulated connecting portion is an insulated coupling, the insulated coupling comprises an insulated elastic ring, a first half coupling and a second half coupling, the first half coupling is connected with the upper half shaft, the second half coupling is connected with the lower half shaft, and the insulated elastic ring is installed between the first half coupling and the second half coupling so as to electrically isolate the first half coupling from the second half coupling.
3. The insulated tool shank apparatus according to claim 2, further comprising a fixed housing, wherein the fixed housing is sleeved on an outer peripheral surface of the lower half shaft, the fixed housing encloses to form a liquid chamber, and the liquid chamber, the first inner flushing channel and the second inner flushing channel are sequentially communicated.
4. The insulating tool handle device of claim 3, wherein a flushing circumferential hole is further formed in the periphery of the lower half shaft, and the liquid cavity is communicated with the first inner flushing channel through the flushing circumferential hole; and one end of the lower half shaft, which is far away from the insulating connecting part, is also provided with an electrode clamping part, and the electrode clamping part is used for clamping the tool electrode.
5. The insulated knife handle device of claim 4, further comprising a flushing block and a flushing pipe, wherein the flushing block is arranged on the side surface of the fixed housing, and the flushing pipe is arranged in the flushing block.
6. The insulating knife handle device according to claim 5, wherein the liquid flushing block is provided with a liquid flushing pipe mounting hole for inserting the liquid flushing pipe, a spring is arranged at the bottom of the liquid flushing pipe mounting hole, a liquid flushing pipe fixing block is arranged at the top end of the liquid flushing block and used for enabling the liquid flushing pipe to be fixedly mounted in the liquid flushing pipe mounting hole, and the spring is used for providing a buffering acting force when the liquid flushing pipe is inserted into the mechanical spindle or the electric spindle.
7. The insulated handle device of claim 6, wherein the side surfaces of the flushing tube and the flushing block are perforated to communicate the internal passage of the flushing tube with the liquid chamber.
8. The insulating tool shank device according to any one of claims 3 to 7, wherein the fixed housing has a first bearing seat and a second bearing seat formed on an inner side wall thereof adjacent to the lower half shaft, the lower half shaft has a first bearing and a second bearing sleeved on an outer periphery thereof, the first bearing is mounted in the first bearing seat, the second bearing is mounted in the second bearing seat, and the first bearing and the second bearing are arranged along an axis of the tool electrode and between the lower half shaft and the fixed housing.
9. The insulating tool handle device of claim 8, wherein the fixed housing is provided with a first oil seal seat and a second oil seal seat near the inner side wall of the lower half shaft, the periphery of the lower half shaft is further sleeved with a first oil seal and a second oil seal, the first oil seal is installed on the first oil seal seat, the second oil seal is installed on the second oil seal seat, the first oil seal and the second oil seal are both arranged between the first bearing and the second bearing, and the first oil seal, the second oil seal and the fixed housing together enclose to form the liquid cavity.
10. An arc micro-blasting processing apparatus, comprising:
a machine tool;
the power main shaft is arranged on the machine tool and comprises any one of an electric main shaft and a mechanical main shaft;
an insulated handle set according to any one of claims 1 to 9 removably attached to the power spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910975457.7A CN110653435A (en) | 2019-10-11 | 2019-10-11 | Insulating knife handle device for electric arc micro-explosion machining and machining equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910975457.7A CN110653435A (en) | 2019-10-11 | 2019-10-11 | Insulating knife handle device for electric arc micro-explosion machining and machining equipment |
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| CN110653435A true CN110653435A (en) | 2020-01-07 |
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| CN111151832A (en) * | 2020-01-15 | 2020-05-15 | 清华大学 | Rotary arc milling device, milling machine tool and control system thereof |
| CN111451518A (en) * | 2020-05-11 | 2020-07-28 | 深圳创源航天科技有限公司 | Electric arc micro-explosion metal powder preparation device and control method thereof |
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| CN106381490A (en) * | 2016-09-06 | 2017-02-08 | 兰州荣翔轨道交通科技有限公司 | Spring-gravity adjusting type high-energy micro-arc-spark deposition knife handle |
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| CN111151832B (en) * | 2020-01-15 | 2021-05-11 | 清华大学 | Rotary arc milling device, milling machine tool and control system thereof |
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