CN110014294B - Electrolytic drilling and grinding integrated processing device and system for group-hole tube electrodes - Google Patents
Electrolytic drilling and grinding integrated processing device and system for group-hole tube electrodes Download PDFInfo
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- CN110014294B CN110014294B CN201910390583.6A CN201910390583A CN110014294B CN 110014294 B CN110014294 B CN 110014294B CN 201910390583 A CN201910390583 A CN 201910390583A CN 110014294 B CN110014294 B CN 110014294B
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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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
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Abstract
The application discloses group's hole pipe electrode electrolysis bores and grinds integration processingequipment and system includes: the device comprises an electrolyte box body, a main shaft and a plurality of sleeve electrode assemblies; the first end of the main shaft penetrates through the top of the electrolyte box body, the second end of the main shaft is arranged in the electrolyte box body, and a first gear is fixedly arranged at the second end of the main shaft; the tube electrode assembly comprises a manipulator, an electrolyte conveying pipe, a tube electrode and a conducting ring; the manipulator penetrates through and is fixedly connected with the bottom of the electrolyte box body, one end of the manipulator is provided with a second gear, and the second gear is respectively meshed with the first gear; the electrolyte conveying pipe penetrates through the manipulator and is communicated with the electrolyte box body and the pipe electrode; one end of the tube electrode is fixedly connected with the other end of the manipulator, and a diamond abrasive grain layer is arranged on the outer wall of the middle lower part of the tube electrode; the conductive ring is fixedly arranged at one end of the tube electrode close to the manipulator. The method can realize one-time processing of a plurality of small or deep small group holes with smooth surfaces, and greatly improve the precision and efficiency of group hole processing.
Description
Technical Field
The application relates to the technical field of small hole or deep small hole machining, in particular to an electrolytic drilling and grinding integrated machining device and system for a group hole pipe electrode.
Background
With the continuous development of science and technology, the requirements of small holes or deep and small groups of holes on various mechanical structural members are rapidly improved in the aspects of aerospace, ship manufacturing and automobile manufacturing. For processing small holes or deep small group holes, not only is the demand for miniaturization increasing, but also the surface quality and precision of the holes are continuously improved. At present, engine housings, airplane housings, turbine blades and the like have great demands on small-hole or deep small-group hole processing, and due to different array distribution and great quantity, the group holes put higher demands on processing universality and efficiency.
At present, methods for machining small holes or deep small group holes mainly include electric spark machining, electrolytic machining, mechanical drilling, laser drilling and the like. Mechanical drilling machining is a relatively universal machining method in the early years, but with the development of science and technology, the defects of traditional machining modes such as mechanical drilling are continuously exposed, for example, machining efficiency is low, machining tools are seriously abraded, and machining precision cannot meet the current requirements. In addition, although the laser drilling method has high efficiency, the laser equipment is still very expensive, and it is necessary to process a plurality of laser devices in cooperation with each other to process a fine group of holes.
The electrochemical machining performance is better than mechanical drilling machining and laser drilling, but most of the existing electrochemical machining utilizes an electrode clamping block to clamp a series of electrodes, the clamping block is arranged on a module frame, and the clamping force of the electrodes is adjusted by a fastening device. The electrode clamping blocks are composed of row units, different row electrode clamping blocks are selected according to the space and the size of holes, the row number of the electrode clamping blocks is determined according to the row number of the group holes machined each time, then the electrode clamping blocks and the electrodes are fastened by a fastening device, a rectangular electrode clamping module is assembled, and then the electrode clamping module is installed in the module frame. After tool setting, determining an initial machining gap, opening an electrolyte circulating system, and performing group hole electrochemical machining on the workpiece. However, the method is only suitable for processing the array group holes with rectangular distribution, and for arc array group holes or other more complex array group holes, effective and simple electrode clamping blocks cannot be designed for processing after assembly, so that the development of wide application of electrolytic processing is limited.
Disclosure of Invention
The application provides a group's hole pipe electrode electrolysis bores and grinds integrated processingequipment and system can realize once only having processed a plurality of apertures and the dark little crowd's hole that have the smooth surface, greatly improves the machining precision and the efficiency of crowd's hole processing.
The application provides a group hole pipe electrode electrolysis bores and grinds integration processingequipment includes: the device comprises an electrolyte box body, a main shaft and a plurality of sleeve electrode assemblies;
the first end of the main shaft penetrates through the top of the electrolyte box body, the second end of the main shaft is arranged in the electrolyte box body, a first gear is fixedly arranged at the second end of the main shaft, and the main shaft can rotate around the central axis of the main shaft in the electrolyte box body;
each set of the tube electrode assembly comprises a manipulator, an electrolyte conveying pipe, a tube electrode and a conducting ring;
the manipulator penetrates through and is fixedly connected with the bottom of the electrolyte box body, one end of the manipulator is provided with a second gear, and the second gears are respectively meshed with the first gears;
the electrolyte conveying pipe penetrates through the manipulator, one end of the electrolyte conveying pipe is communicated with the electrolyte box body, and the other end of the electrolyte conveying pipe is communicated with the pipe electrode;
one end of the tube electrode is fixedly connected with the other end of the manipulator, and a diamond abrasive grain layer is arranged on the outer wall of the middle lower part of the tube electrode;
the conductive ring is fixedly arranged at one end, close to the manipulator, of the tube electrode.
Optionally, in the electrolytic drilling and grinding integrated processing device for the group-hole tube electrode, a valve is arranged on the manipulator, and the valve controls the on-off of the electrolyte delivery pipe.
Optionally, in the above electrolytic drilling and grinding integrated processing device for the group-hole tube electrode, a first end cover and a first sealing ring are arranged at a joint of the main shaft and the electrolyte tank.
Optionally, in the above electrolytic drilling and grinding integrated processing device for the group-hole tube electrode, a second end cover and a second sealing ring are arranged at a joint of the manipulator and the electrolyte tank.
In a second aspect, the application further provides a group hole pipe electrode electrolysis drilling and grinding integrated processing system based on the group hole pipe electrode electrolysis drilling and grinding integrated processing device provided by the application, the group hole pipe electrode electrolysis drilling and grinding integrated processing device comprises the group hole pipe electrode electrolysis drilling and grinding integrated processing device, and the group hole pipe electrode electrolysis drilling and grinding integrated processing device is any one of the above-mentioned.
Optionally, the electrolytic drilling and grinding integrated processing system for the group-hole tube electrodes further comprises a machine tool body, a control computer, a motion control card, a programmable frequency converter, a high-frequency pulse power supply and an electrolytic bath;
the machine tool body is connected with a main shaft of the group-hole tube electrode electrolytic drilling and grinding integrated machining device, the control computer controls the machine tool body through the motion control card, and the control computer controls the main shaft through the programmable frequency converter;
the electrolytic tank is used for containing workpieces to be machined and receiving electrolyte, the cathode of the high-frequency pulse power supply is connected with all tube electrodes of the group-hole tube electrode electrolytic drilling and grinding integrated machining device, and the anode of the high-frequency pulse power supply is used for being connected with the workpieces to be machined.
Optionally, in the above electrolytic drilling and grinding integrated processing system for the group-hole tube electrode, the high-frequency pulse power supply and the connection circuit of the tube electrode are provided with a universal meter, and the universal meter is connected with the control computer through a data acquisition card.
Optionally, above-mentioned electrolytic brill of group's hole pipe electrode grinds integration processingequipment, the system still includes electrolyte circulating device, electrolyte circulating device includes liquid reserve tank, centrifugal pump, filter, choke valve and flowmeter, the inlet intercommunication of liquid reserve tank the electrolysis trough, the liquid outlet of liquid reserve tank passes through in proper order centrifugal pump, filter, choke valve and flowmeter intercommunication the electrolytic liquid box of group's hole pipe electrode electrolytic brill and grind integration processingequipment.
Optionally, above-mentioned group's hole pipe electrode electrolysis bores and grinds integration system of processing, electrolyte circulating device still includes the clarifier, the inlet of liquid reserve tank passes through the clarifier intercommunication the electrolysis trough.
Optionally, the above-mentioned electrolytic drilling and grinding integrated processing system for the group-hole tube electrode further comprises a lifting table and an acrylic plate, wherein the lifting table supports the electrolytic cell, and the acrylic plate is arranged in the electrolytic cell and used for supporting and fixing the workpiece to be processed.
The electrolytic drilling and grinding integrated processing device and system for the group-hole pipe electrode, provided by the application, have the advantages that the electrolytic processing and the grinding processing are combined, the processing error caused by repeated positioning is eliminated, and the processing precision and the processing efficiency are greatly improved; the strength and hardness of the passivation film generated in electrolytic machining are low, and the macroscopic cutting force in the mechanical grinding process is small, so that the loss of the tube electrode and diamond abrasive particles on the tube electrode is small, and the machining economy is improved; the plurality of sleeve electrode assemblies are arranged, and the plurality of small holes with the smooth surfaces and the deep small group holes are processed at one time by adjusting the array arrangement of the sleeve electrode assemblies, so that the synchronism of processing the same group of group holes is ensured, and the processing precision and efficiency of processing the group holes are greatly improved. Therefore, the electrolytic drilling and grinding integrated processing device and system for the group-hole pipe electrode can process a plurality of small holes with smooth surfaces and deep small group holes at one time, and greatly improve the processing precision and efficiency of group hole processing.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural diagram of an electrolytic drilling and grinding integrated processing device for a group-hole tube electrode according to an embodiment of the present application;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural diagram of an electrolytic drilling and grinding integrated processing system for a group-hole tube electrode according to an embodiment of the present application.
Wherein:
1-group hole pipe electrode electrolytic drilling and grinding integrated processing device, 101-electrolyte box body, 102-main shaft, 103-first gear, 104-mechanical arm, 105-electrolyte delivery pipe, 106-pipe electrode, 107-conducting ring, 108-second gear, 109-diamond abrasive grain layer, 110-valve, 111-first end cover, 112-first sealing ring, 113-second end cover, 114-second sealing ring, 2-machine tool body, 3-control computer, 4-motion control card, 5-programmable frequency converter, 6-high frequency pulse power supply, 7-electrolytic tank, 8-electrolyte circulating device, 801-liquid storage box, 802-centrifugal pump, 803-filter, 804-throttling valve, 805-flowmeter, 806-a purifier, 9-a multimeter, 10-a data acquisition card, 11-a lifting table, 12-an acrylic plate and 13-a workpiece to be processed.
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 embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention.
Referring to the attached drawings 1 and 2, fig. 1 and 2 show the basic structure of the electrolytic drilling and grinding integrated machining device 1 for the group-hole tube electrode provided by the embodiment of the application. The embodiment of the present invention will be described with reference to fig. 1 and 2, which provide an electrolytic drilling and grinding integrated processing device 1 along a group hole pipe electrode.
As shown in fig. 1 and 2, the group-hole tube electrode electrolytic drilling and grinding integrated processing device 1 provided by the embodiment of the present application includes an electrolyte tank 101, a main shaft 102 and a plurality of sleeve electrode assemblies. Wherein:
a first end of the main shaft 102 penetrates through the top of the electrolyte tank 101, a second end of the main shaft 102 is arranged inside the electrolyte tank 101, a first gear 103 is fixedly arranged at the second end of the main shaft 102, and the main shaft 102 can rotate around a central axis of the main shaft 102 in the electrolyte tank 101;
each set of the tube electrode assemblies comprises a mechanical arm 104, an electrolyte delivery tube 105, a tube electrode 106 and a conducting ring 107;
the manipulator 104 penetrates through and is fixedly connected with the bottom of the electrolyte box body 101, a second gear 108 is arranged at one end of the manipulator 104, and the second gear 108 is meshed with the first gear 103 respectively;
the electrolyte conveying pipe 105 penetrates through the manipulator 104, one end of the electrolyte conveying pipe 105 is communicated with the electrolyte box 101, and the other end of the electrolyte conveying pipe 105 is communicated with the pipe electrode 106;
one end of the tube electrode 106 is fixedly connected with the other end of the manipulator 104, and a diamond abrasive grain layer 109 is arranged on the outer wall of the middle lower part of the tube electrode 106;
the conductive ring 107 is fixedly disposed on the tube electrode 106 near one end of the robot 104.
The main shaft 102 is used for mounting and connecting the driving mechanism on one hand and carrying and supporting the electrolyte tank 101 on the other hand. The electrolyte box body 101 is internally provided with a cavity structure, and the electrolyte box body 101 is provided with an electrolyte inlet. The electrolyte box 101 can be used for storing electrolyte such as sodium nitrate with the mass fraction of 5% -16%, and the electrolyte in the electrolyte box 101 flows through the tube electrode assembly and is used for electrolytic machining of a workpiece to be machined. The tube electrode 106 has an inner cavity in its central axis for electrolyte to flow through. The electrolyte stored in the electrolyte box 101 is transported to the tube electrode 106 and the workpiece to be processed through the electrolyte transport tube 105, and is used for electrolyzing the workpiece to be processed, so that the workpiece to be processed is subjected to electrolytic punching processing. In the embodiment of the application, the workpiece to be machined is mainly a metal piece which is difficult to machine, such as nickel-based superalloy or titanium alloy.
In the embodiment of the present application, the number of the tube electrode assemblies is several, such as 6, 8, etc., and is not limited herein. The tube electrode assembly can be arranged according to the processed group hole array, namely the tube electrode can be arranged according to the processed group hole array by controlling the shape and the position of the manipulator.
In the embodiment of the present application, the tube electrode 106 has a three-section structure, the upper end and the lower end are respectively of a common tube electrode structure, and the diamond abrasive layer 109 is disposed near the lower end, that is, the diamond abrasive layer 109 is disposed on the outer wall of the middle lower portion of the tube electrode 106. The abrasive grains of the diamond abrasive grain layer 109 are 500-3000 mesh diamond abrasive grains. Diamond abrasive grains are set on the tube electrode 106 by an electrodeposition sand burying method to form a diamond abrasive grain layer 109.
In the embodiment of the present application, the robot 104 is mainly composed of a universal joint and a transmission shaft, and drives the universal joint and the transmission shaft to rotate in the position and orientation thereof, so as to drive the tube electrode 106 to rotate. A through hole is provided along the length of the robot arm 104, and an electrolyte delivery pipe 105 penetrates through the through hole.
With the progress of the electrolytic drilling, the depth of the hole to be processed is gradually increased, and the height of the main shaft 102 is reduced to drive the tube electrode 106 to partially sink into the hole to be processed. The main shaft 102 rotates under the driving of the driving mechanism, so as to drive the tube electrode assembly to rotate, further realize the further reaming and fine machining of the machined hole by the diamond abrasive grain layer 109 on the tube electrode 106, and in the process, the electrolytic machining and the mechanical grinding machining are combined. The rough machining and the finish machining are synchronously performed, repeated positioning is not needed, and machining errors caused by repeated positioning are greatly reduced.
The aperture of the tiny group holes processed by the group hole pipe electrode electrolytic drilling and grinding integrated processing device 1 provided by the embodiment of the application is 1-10 mm, and the depth-diameter ratio is 0.5: 1-50: 1, the surface roughness of the machined hole wall is better than 0.63 mu m.
Further, in the group hole pipe electrode electrolysis drilling and grinding integrated processing device 1 provided in the embodiment of the present application, the valve 110 is disposed on the manipulator 104, and the valve 110 controls the on-off of the electrolyte delivery pipe 105, that is: opening the valve 110, and allowing the electrolyte in the electrolyte box 101 to flow to the tube electrode 106 through the electrolyte delivery tube 105; the valve 110 is closed to prevent electrolyte in the electrolyte tank 101 from flowing through the electrolyte delivery tube 105 to the tube electrode 106. In the embodiment of the present application, the opening and closing of the valve 110 can be controlled to control the flow rate of the electrolyte in the electrolyte tank 101 flowing to the tube electrode 106 through the electrolyte delivery tube 105. In the present embodiment, the valve 110 may be an axle valve.
In the embodiment of the present application, a first end cap 111 and a first sealing ring 112 are provided at the junction of the main shaft 102 and the electrolyte tank 101. The first end cap 111 and the first sealing ring 112 are used for sealing the joint of the main shaft 102 and the electrolyte tank 101.
In the embodiment of the present application, a second end cap 113 and a second sealing ring 114 are provided at the connection between the robot 104 and the electrolyte tank 101. The second end cap 113 and the second sealing ring 114 are used to seal the joint of the robot 104 and the electrolyte tank 101.
Based on group's hole pipe electrode electrolysis brill grinds integration processingequipment that this application embodiment provided, this application embodiment still provides a group's hole pipe electrode electrolysis brill grinds integration system of processing, the system includes group's hole pipe electrode electrolysis brill grinds integration processingequipment, group's hole pipe electrode electrolysis brill grinds integration processingequipment and is the arbitrary one of the aforesaid group's hole pipe electrode electrolysis brill grinds integration processingequipment.
Fig. 3 is a basic structure of an electrolytic drilling and grinding integrated processing system for a group of hole pipe electrodes according to an embodiment of the present application. As shown in fig. 3, the electrolytic drilling and grinding integrated processing system for the group-hole tube electrode provided in the embodiment of the present application further includes a processing machine tool body 2, a control computer 3, a motion control card 4, a programmable frequency converter 5, a high-frequency pulse power supply 6, and an electrolytic bath 7.
The machine tool body 2 is connected with a main shaft 102 of the group hole tube electrode electrolytic drilling and grinding integrated machining device 1, the control computer 3 controls the machine tool body 2 through a motion control card 4, and the control computer 3 controls the main shaft 102 through a programmable frequency converter 5. In the embodiment of the application, the processing machine tool plays a role of carrying the processing device and has a three-dimensional motion function. Specifically, the machine tool body 2 may be a general machine tool that realizes its linkage in three axes X, Y, Z by the control computer 3. The control computer 3 controls the rotation speed conversion of the main shaft 102 through the programmable frequency converter 5.
The electrolytic tank 7 is used for containing the workpiece 13 to be processed and receiving electrolyte. The high-frequency pulse power source 6 serves as an electrolysis power source. Specifically, the cathode of the high-frequency pulse power supply 6 is connected to each tube electrode 106 of the group-hole tube electrode electrolytic drilling and grinding integrated machining device 1, and the anode of the high-frequency pulse power supply 6 is used for connecting to the workpiece 13 to be machined. In the embodiment of the present application, the cathode of the high-frequency pulse power supply 6 is connected to the conductive ring 107 on the tube electrode 106.
In the electrolytic drilling and grinding integrated processing system for the group-hole pipe electrode provided by the embodiment of the application, the electrolytic drilling and grinding integrated processing system further comprises an electrolyte circulating device 8. The electrolyte circulation device 8 is used for circulating and supplying electrolyte in the electrolyte box. Specifically, the electrolyte circulation device 8 comprises a liquid storage tank 801, a centrifugal pump 802, a filter 803, a throttle valve 804 and a flowmeter 805, wherein a liquid inlet of the liquid storage tank 801 is communicated with the electrolytic cell 7, and a liquid outlet of the liquid storage tank 801 is communicated with the electrolyte tank 101 of the group-hole pipe electrode electrolytic drilling and grinding integrated processing device 1 through the centrifugal pump 802, the filter 803, the throttle valve 804 and the flowmeter 805 in sequence.
The liquid storage tank 801 stores therein an electrolyte. In the electrolytic machining process of the group-hole pipe electrode electrolytic drilling and grinding integrated machining device 1, the electrolyte stored in the liquid storage tank 801 is pumped to the filter 803 through the centrifugal pump 802, and then is sent to the electrolyte tank 101 through the throttle valve 804 and the flowmeter 805 for use in electrolytic machining. A throttle valve 804 and flow meter 805 are used to monitor the amount of electrolyte flowing into the electrolyte tank 101.
During the electrolytic machining, the electrolyte flowing out of the tube electrode 106 continuously flows to the electrolytic cell 7, the electrolytic cell 7 is used for temporarily storing the electrolyte, and the electrolyte in the electrolytic cell 7 is recovered to the liquid storage tank 801. Specifically, when the electrolyte in the electrolytic cell 7 reaches a certain amount, the electrolyte flows to the liquid storage tank 801 through the purifier 806, and the purifier 806 is used for purifying the electrolyte flowing out from the electrolytic cell 7, such as removing other ions in the electrolyte and adjusting the ion concentration in the electrolyte.
In the embodiment of the application, a multimeter 9 is arranged on a connection circuit of the high-frequency pulse power supply 6 and the tube electrode 106, and the multimeter 9 is connected with the control computer 3 through a data acquisition card 10. The control computer 3 receives the electrical signals from the workpiece to be machined 13-electrode circuit via a data acquisition card 10.
In the group's hole pipe electrode electrolysis brill grinds integration system of processing that this application embodiment provided, still include elevating platform 11 and inferior gram force board 12, elevating platform 11 supports electrolysis trough 7, inferior gram force board 12 set up in electrolysis trough 7 for support and fixed wait to process work piece 13. The acrylic sheet 12 has corrosion resistance and is easily drilled. The lifting platform 11 is arranged on the machine tool body, and the lifting platform 11 can be a manual lifting platform.
The electrolytic drilling and grinding integrated processing device and system for the group-hole pipe electrode, provided by the application, have the advantages that the electrolytic processing and the grinding processing are combined, the processing error caused by repeated positioning is eliminated, and the processing precision and the processing efficiency are greatly improved; the strength and hardness of the passivation film generated in electrolytic machining are low, and the macroscopic cutting force in the mechanical grinding process is small, so that the loss of the tube electrode and diamond abrasive particles on the tube electrode is small, and the machining economy is improved; the plurality of sleeve electrode assemblies are arranged, and the plurality of small holes with the smooth surfaces and the deep small group holes are processed at one time by adjusting the array arrangement of the sleeve electrode assemblies, so that the synchronism of processing the same group of group holes is ensured, and the processing precision and efficiency of processing the group holes are greatly improved. The electrolytic drilling and grinding integrated processing device and system for the group-hole pipe electrode can achieve one-time processing of a plurality of small holes with smooth surfaces and deep small group holes, and greatly improve the processing precision and efficiency of group hole processing.
In order to introduce the electrolytic drilling and grinding integrated processing device and system for the group-hole pipe electrode provided by the embodiment of the application in detail, the application also provides a specific working process, which is as follows:
the first step is as follows: firstly, fixing a workpiece 13 to be processed, for example, fixing the workpiece 13 to be processed by using a workpiece fixture, connecting the positive electrode of the high-frequency pulse power supply 6 with the workpiece 13 to be processed, and connecting the negative electrode with the conductive ring 107 on the tube electrode 106, thereby forming a tube electrode 106 connection loop.
The second step is that: according to the arrangement condition of the group hole arrays to be processed, the movement position of the manipulator 104 is changed through the operation control of the control computer, so that the arrangement of the tube electrodes 106 is consistent with the array arrangement of the group holes, and the lower ends of the tube electrodes 106 are kept flush, so that the processing of the holes can be kept synchronous and consistent.
The third step: opening a centrifugal pump 802 of the electrolyte circulation filtering device, enabling the electrolyte to flow through the centrifugal pump 802, a filter 803, a throttle valve 804 and a flowmeter 805 from a liquid storage tank 801 in sequence, and then flowing the electrolyte tank 101 from an inlet of the electrolyte tank; generally, after the electrolyte tank 101 is filled with the electrolyte, the valve 110 is opened to allow the electrolyte to flow more uniformly into the electrolyte delivery pipe 105 and then into the inner cavity of the pipe electrode 106, so as to perform electrochemical machining on the workpiece 13 to be machined. The flow rate of the electrolyte is controlled by a centrifugal pump 802, a throttle valve 804, and a flow meter 805, and the flow rate of the electrolyte ejected from each tube electrode 106 is stabilized and uniform.
The fourth step: and (3) turning on the high-frequency pulse power supply 6, controlling the main shaft 102 to feed downwards by the control computer 3, and carrying out tool setting treatment on the tube electrode 106. Specifically, in the process that the control computer 3 controls the main shaft 102 to feed downwards, when the current indication of the universal meter 9 is suddenly increased, the high-frequency pulse power supply 6 is disconnected, and the control computer 3 controls the main shaft 102 to move upwards to the position of the initial machining gap, so that tool setting is completed.
The fifth step: turning on the high-frequency pulse power supply 6, and controlling the computer 3 to control the main shaft 102 to feed downwards; firstly, a first section of the tube electrode 106 is subjected to electrochemical machining on the workpiece 13 to be machined, and after a blind hole is machined, a second section of the diamond abrasive particle layer 109 arranged on the tube electrode 106 is used for reaming a machined hole of the first section, and the machining mode is electrochemical grinding combined machining. With the continuous feeding, until the second section of the tube electrode 106 finishes processing the lower end face of the processed hole, the control computer 3 controls the main shaft 102 to lift the cutter upwards and return to the position of the initial processing gap, thereby completing the processing of a group hole array.
All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments, and the relevant points may be referred to the part of the description of the method embodiment. It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention 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 invention is limited only by the appended claims.
Claims (10)
1. The utility model provides a group's hole pipe electrode electrolysis bores and grinds integrated processingequipment which characterized in that includes: the device comprises an electrolyte box body, a main shaft and a plurality of sleeve electrode assemblies;
the first end of the main shaft penetrates through the top of the electrolyte box body, the second end of the main shaft is arranged in the electrolyte box body, a first gear is fixedly arranged at the second end of the main shaft, and the main shaft can rotate around the central axis of the main shaft in the electrolyte box body;
each set of the tube electrode assembly comprises a manipulator, an electrolyte conveying pipe, a tube electrode and a conducting ring;
the manipulator penetrates through and is fixedly connected with the bottom of the electrolyte box body, one end of the manipulator is provided with a second gear, and the second gears are respectively meshed with the first gears;
the electrolyte conveying pipe penetrates through the manipulator, one end of the electrolyte conveying pipe is communicated with the electrolyte box body, and the other end of the electrolyte conveying pipe is communicated with the pipe electrode;
one end of the tube electrode is fixedly connected with the other end of the manipulator, and a diamond abrasive grain layer is arranged on the outer wall of the middle lower part of the tube electrode;
the conductive ring is fixedly arranged at one end, close to the manipulator, of the tube electrode;
the manipulator comprises a universal joint and a transmission shaft, and the form and the position of the manipulator are changed by controlling the universal joint and the transmission shaft so as to realize the array arrangement of the tube electrodes according to the processing group hole array.
2. The integrated processing device for electrolytic drilling and grinding of the electrodes of the group-hole pipes as claimed in claim 1, wherein a valve is arranged on the manipulator, and the valve controls the on-off of the electrolyte delivery pipe.
3. The electrolytic drilling and grinding integrated processing device for the group-hole pipe electrode as claimed in claim 1, wherein a first end cover and a first sealing ring are arranged at the joint of the main shaft and the electrolyte box body.
4. The electrolytic drilling and grinding integrated processing device for the group-hole pipe electrode as claimed in claim 1, wherein a second end cover and a second sealing ring are arranged at the joint of the manipulator and the electrolyte box body.
5. An electrode electrolysis drilling and grinding integrated processing system for a group-hole pipe is characterized by comprising an electrode electrolysis drilling and grinding integrated processing device for the group-hole pipe, wherein the electrode electrolysis drilling and grinding integrated processing device for the group-hole pipe is the electrode electrolysis drilling and grinding integrated processing device for the group-hole pipe according to any one of claims 1 to 4.
6. The group-hole tube electrode electrolytic drilling and grinding integrated processing system according to claim 5, wherein the system further comprises a processing machine tool body, a control computer, a motion control card, a programmable frequency converter, a high-frequency pulse power supply and an electrolytic bath;
the machine tool body is connected with a main shaft of the group-hole tube electrode electrolytic drilling and grinding integrated machining device, the control computer controls the machine tool body through the motion control card, and the control computer controls the main shaft through the programmable frequency converter;
the electrolytic tank is used for containing workpieces to be machined and receiving electrolyte, the cathode of the high-frequency pulse power supply is connected with all tube electrodes of the group-hole tube electrode electrolytic drilling and grinding integrated machining device, and the anode of the high-frequency pulse power supply is used for being connected with the workpieces to be machined.
7. The electrolytic drilling and grinding integrated processing system for the group-hole pipe electrodes according to claim 6, wherein a multimeter is arranged on a connecting circuit of the high-frequency pulse power supply and the pipe electrodes, and the multimeter is connected with the control computer through a data acquisition card.
8. The group-hole pipe electrode electrolytic drilling and grinding integrated machining system according to claim 6, further comprising an electrolyte circulating device, wherein the electrolyte circulating device comprises a liquid storage tank, a centrifugal pump, a filter, a throttle valve and a flow meter, a liquid inlet of the liquid storage tank is communicated with the electrolytic tank, and a liquid outlet of the liquid storage tank is communicated with an electrolyte tank body of the group-hole pipe electrode electrolytic drilling and grinding integrated machining device through the centrifugal pump, the filter, the throttle valve and the flow meter in sequence.
9. The group-hole pipe electrode electrolysis drilling and grinding integrated processing system as claimed in claim 8, wherein the electrolyte circulating device further comprises a purifier, and the liquid inlet of the liquid storage tank is communicated with the electrolytic bath through the purifier.
10. The group-hole pipe electrode electrolytic drilling and grinding integrated machining system according to claim 6, further comprising a lifting table and an acrylic plate, wherein the lifting table supports the electrolytic cell, and the acrylic plate is arranged in the electrolytic cell and used for supporting and fixing the workpiece to be machined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390583.6A CN110014294B (en) | 2019-05-10 | 2019-05-10 | Electrolytic drilling and grinding integrated processing device and system for group-hole tube electrodes |
Applications Claiming Priority (1)
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| CN111151830A (en) * | 2020-02-06 | 2020-05-15 | 山东大学 | Ultrasonic vibration assisted electrolytic matrix oblique square hole machining system and method |
| CN114425644A (en) * | 2022-02-23 | 2022-05-03 | 南京航空航天大学 | Array type supporting auxiliary device for electrolytic machining of large-size weak-rigidity thin-walled part |
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