CN210731280U - Electric spark electrolysis discharge combined machining test device for semicircular hole - Google Patents
Electric spark electrolysis discharge combined machining test device for semicircular hole Download PDFInfo
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Abstract
The utility model discloses an electric spark electrolysis discharge combined machining test device for a semicircular hole, which comprises a test bed base, wherein a guide rail platform is arranged above the test bed base, an electric spindle clamp is connected to the side edge of the guide rail platform in a sliding manner, a high-speed electric spindle is arranged in the electric spindle clamp, an electric spindle chuck is arranged at the bottom of the high-speed electric spindle, a tool electrode is arranged in the electric spindle chuck, and a workpiece to be machined and a prefabricated mold which are mutually attached are arranged in a box body structure of an electrolytic bath; the miniature lead screw penetrates through the channel where the semicircular guide hole of the prefabricated die is located from top to bottom, the top of the miniature lead screw is provided with a semicircular follow-up piece, and the semicircular follow-up piece is in clearance fit in the semicircular cylindrical guide hole. In the device, the miniature screw driven by the second servo motor drives the semicircular follow-up plate to perform axial feeding, synchronous equidirectional and common-speed feeding is performed between the miniature screw and the high-speed electric spindle, and meanwhile, the transmission of the miniature screw cannot generate intermittent feeding defects, so that the actual transmission precision is improved.
Description
Technical Field
The utility model belongs to the technical field of precision and special type processing, concretely relates to electric spark electrolysis discharge combined machining test device for semicircle orifice.
Background
The electric spark electrolysis discharge combined machining is a precise special machining process combining electric spark machining and electrolysis machining, and is also called as electrochemical discharge machining. It can be used for processing both metal material and non-metal material. With the continuous development of aerospace industry, automobile industry, medical appliance industry and micro-electro-mechanical systems, in some special cases, semi-circular hole microstructures need to be processed on some specific parts. Generally, the electric spark electrolysis discharge composite machining test bed can only machine complete round holes, and is difficult to machine semicircular holes; secondly, the traditional machining test device cannot observe and record the generation of bubbles, the formation of an air film, the discharge phenomenon and the like in a machining gap in real time in the electric spark electrolysis discharge composite machining process; finally, the half-round holes are to be processed, so that the integrity of mutual coupling among an electric field, a magnetic field, a thermal field and a flow field is damaged in the discharge processing process.
Therefore, in the published chinese patent CN 109693010a, a method and an apparatus for synchronously observing a small hole electrochemical machining process include a tube electrode, a workpiece, a working fluid tank, a first spur gear, a first speed reducer, a first coupler, a second fixing frame, a bidirectional output motor, a second coupler, a second speed reducer, a second spur gear, a second chute, and a second spur gear. During machining, the bidirectional output electrode drives a first speed reducer through a first coupler, the first speed reducer drives a first straight gear to rotate, the first straight gear is in meshing transmission with a first straight rack, the first straight rack drives a heat insulation sheet to move downwards through a first sliding groove, one half of the tube electrode is arranged in the semicircular reserved hole, and the other half of the tube electrode is in contact with a workpiece to machine a machined semicircular hole; the working solution in the working solution groove can flow into the area that the semicircle orifice and the semicircle preformed hole of processing are located the heat shield top, and first gasket and second gasket can prevent that the working solution from leaking.
However, the rack transmission is adopted in the scheme, when the pipe electrode feeds small displacement, the rack has certain tooth width due to tooth root and tooth top, so that the rack transmission has certain intermittent feeding defect, finally, the parallelism of the upper surface of the semicircular hole where the workpiece to be machined is located and the upper surface where the heat insulation sheet is located is inconsistent, when the pipe electrode is drilled, the end part of the pipe electrode is not uniformly discharged due to the inconsistent parallelism, the pipe electrode is greatly damaged, and the actual service life of the pipe electrode is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art, and provides a spark electrolysis discharge combined machining test device for a semicircular hole, aiming at solving the problem of intermittent feeding defect caused by the rack transmission in the prior art.
The purpose of the utility model can be realized by the following technical scheme:
an electric spark electrolysis discharge combined machining test device for a semicircular hole comprises a test bed base, an electrolytic cell and an industrial personal computer, wherein a guide rail platform is arranged above the test bed base along the verticality direction, an electric spindle clamp is connected to the side edge of the guide rail platform in a sliding mode, a high-speed electric spindle is installed in the electric spindle clamp in an interference fit mode, an electric leading connector is arranged at the top of the high-speed electric spindle, an electric spindle chuck is arranged at the bottom of the high-speed electric spindle, a tool electrode is clamped on the electric spindle chuck, and the electrolytic cell is arranged right below the tool electrode;
the bottom of the electrolytic bath is connected to the base of the test bed through a support, the electrolytic bath is of a box body structure with an open top, and a workpiece to be machined and a prefabricated mold which are mutually attached are contained in the box body structure; a semicircular guide hole which penetrates through the upper part and the lower part is prefabricated on the contact surface of the prefabricated mould and the workpiece to be machined, the semicircular guide hole and the semicircular hole drilled on the workpiece to be machined are mutually attached to form a complete circular hole structure, the prefabricated mould is arranged right below the tool electrode, and the two sides of the workpiece to be machined and the prefabricated mould are positioned and clamped through a positioning clamp;
a miniature lead screw penetrates through a channel where the semicircular guide hole is located from top to bottom, a semicircular follow-up plate is arranged at the top of the miniature lead screw, the semicircular follow-up plate is in clearance fit in the semicircular guide hole and realizes axial sliding, the bottom of the miniature lead screw is driven by a second servo motor on the side edge of the support, a sealing rubber sleeve is arranged at a through hole where the miniature lead screw penetrates through the bottom of the electrolytic cell, and working liquid is contained in the electrolytic cell;
the side where the electric spindle clamp is located is provided with a high-speed camera, the high-speed camera is used for observing and recording the electro-discharge machining condition in the machining gap, and meanwhile, the electro-discharge machining condition is connected to an industrial personal computer through a data transmission line for storage.
Furthermore, a slide rail is arranged on the side edge of the guide rail platform, a first servo motor is arranged at the top of the slide rail, the first servo motor is used for driving a slide block which is connected in the slide rail in a sliding mode to move, and the side edge of the slide block is connected with the electric spindle clamp.
Furthermore, the sliding block is connected with the electric spindle clamp through a first screw, and the parallelism among the electric spindle clamp, the sliding block and the guide rail platform is kept;
and the axis of a round hole formed by the semicircular guide hole and the semicircular hole is collinear with the axis of the tool electrode.
Furthermore, the positioning fixture comprises a clamping block, a turntable and a limiting block, the middle part of the clamping block is a hollow structure with two end parts penetrating through, clamping grooves are respectively arranged on two sides of the hollow position where the clamping block is located, the limiting block is clamped in the clamping grooves in a sliding mode, and the limiting block consists of a strip-shaped rack and a limiting plate on the inner side surface;
the fluted disc below the rotary disc penetrates through the positioning clamp to the hollowed part and is meshed with the strip-shaped rack, the surface of the rotary disc is provided with second through holes, the second through holes and a plurality of groups of first through holes arranged on the upper surface of the clamping block are coaxially distributed, and the second through holes penetrate through the first through holes and the second through holes simultaneously through the locking rod for locking;
the height of the positioning clamp accounts for 2/3 the height of the workpiece to be processed, so as to ensure the stability and reliability of clamping between the workpiece to be processed and the prefabricated die.
Further, the tool electrode is detachably connected with the electric spindle chuck.
Further, the base of the test bed is made of marble materials; the prefabricated mould is made of metal glass formed by mutually compounding metal and glass materials.
Furthermore, the outer wall of the miniature lead screw is sleeved with a corrosion-resistant protective sleeve.
Further, the outside of electrolysis trough is provided with working solution circulation system, the working solution circulation system passes through the feed liquor of the feed liquor pipe that the circulating pump realized the electrolysis trough outside and set up and the play liquid of drain pipe to flow into the liquid waste treatment device with the play liquid of drain pipe and carry out purification treatment, the rethread feed liquor pipe flows into to the electrolysis trough internal recycle again.
Further, the high-speed camera is connected with the side edge of the electric spindle clamp through a metal corrugated pipe, and the main body of the metal corrugated pipe is made of 304 or 316 type stainless steel materials.
Further, the liquid level of the working solution contained in the electrolytic bath completely submerges 1-2 cm of the upper surface where the workpiece to be machined is located.
The utility model has the advantages that:
1. the utility model discloses a miniature lead screw that second servo motor driven drives semicircle type follower plate and makes the axial feed, and makes synchronous syntropy fast feed altogether between miniature lead screw and the high-speed electric main shaft, can not produce intermittent type nature during miniature lead screw transmission simultaneously and feed the defect to actual transmission precision has been improved.
2. The utility model discloses in see through high temperature resistant, transparent metallic glass prefabricated mould through the high-speed camera that sets up in the electrolysis trough both sides, observe and gather in real time the production of the bubble in the processing clearance, the formation of gas film and discharge phenomenon to information transmission to the industrial computer storage that will gather through data transmission line, so that the scientific research personnel do further deep research, discussion and analysis to the production of the bubble in the processing clearance, the formation condition of gas film and discharge phenomenon.
3. The utility model discloses well tool electrode with the electricity main shaft chuck is for dismantling the connection, consequently can change the tool electrode of different diameters according to the actual processing demand, and prefabricate out the semicircle type guiding hole of different diameters on high temperature resistant, transparent metallic glass in advance to drive the semicircle type follow-up piece through setting up at the miniature lead screw of electrolysis trough bottom and make and tool electrode synchronous syntropy common speed feed, thereby process out the semicircle orifice structure of required different diameters on treating the machined part.
4. The utility model provides a positioning fixture can realize treating the side centre gripping of machined part, and the stable centre gripping of machined part of treating of convenient not unidimensional model avoids influencing the machining precision of semicircle orifice structure under the unstable condition of centre gripping.
5. The utility model discloses not only having reduced the true mobile state of working solution among the electric spark electrolysis discharge combined machining process, also guaranteed the integrality of intercoupling between electric field, magnetic field, thermal field, the flow field among the electrochemical discharge machining process moreover to the finite element simulation analysis for the electric spark electrolysis discharge combined machining of semicircle orifice provides experimental reference.
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, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a part A of the embodiment of the present invention;
FIG. 3 is a schematic sectional view of an electrolytic cell according to an embodiment of the present invention;
FIG. 4 is a schematic top view of an electrolytic cell according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a working fluid circulation system according to an embodiment of the present invention;
fig. 6 is a schematic view of the overall structure of the positioning fixture according to the embodiment of the present invention;
fig. 7 is a schematic sectional view of a positioning fixture according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a limiting block of the positioning fixture according to the embodiment of the present invention;
fig. 9 is a specific flowchart of synchronous co-rotating feed according to an embodiment of the present invention.
In the figure: 1. a base; 2. an electrolytic cell; 3. an industrial personal computer; 4. a rail platform; 5. an electric spindle clamp; 6. a high-speed camera; 21. a support; 22. positioning a clamp; 23. a micro lead screw; 24. a second servo motor; 25. a circulation pump; 26. a waste liquid treatment mechanism; 201. a workpiece to be processed, 202, and a prefabricated mold; 2011. a semi-cylindrical bore; 2021. a semi-cylindrical guide hole; 221. a clamping block; 222. a turntable; 223. a limiting block; 224. a locking lever; 2211. a card slot; 2231. a strip-shaped rack; 2232. a limiting plate; 2212. a first through hole; 2222. a second through hole; 231. a semi-cylindrical follower plate; 2301. a protective sleeve; 232. sealing the rubber sleeve; 251. a liquid inlet pipe; 252. a liquid outlet pipe; 401. a slide rail; 41. a first servo motor; 51. a high-speed motorized spindle; 52. a slider; 501. a first screw; 511. leading the electric connector; 512. an electric spindle chuck; 513. a tool electrode.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the embodiment of the utility model provides an electric spark electrolysis discharge combined machining test device for semicircle orifice, including test bench base 1, electrolysis trough 2, industrial computer 3, test bench base 1 adopts marble material to make, test bench base 1's top is provided with guide rail platform 4 along the plumbing direction, guide rail platform 4's side is provided with slide rail 401, and install first servo motor 41 at the top at slide rail 401 place, first servo motor 41 is used for the slider 52 motion of drive sliding connection in slide rail 401, electric spindle clamp 5 is being connected to slider 52's side, screw up through first screw 501 between slider 52's side panel and the electric spindle clamp 5 and be connected, first screw 501 generally sets up to four, fasten gradually according to the symmetry position, be favorable to guaranteeing the plane degree between electric spindle clamp 5 and the slider 52. The high-speed electric spindle 51 is arranged in the electric spindle clamp 5 in an interference fit mode, the top of the high-speed electric spindle 51 is provided with an electric lead connector 511, the bottom of the high-speed electric spindle 51 is provided with an electric spindle chuck 512, a tool electrode 513 is clamped below the electric spindle chuck 512, the tool electrode 513 is detachably connected with the electric spindle chuck 512, tool electrodes 513 of different sizes can be replaced conveniently, and an electrolytic cell 2 is arranged right below the tool electrode 513.
As shown in fig. 3 and 4, the bottom of the electrolytic cell 2 is connected to the test bed base 1 through a support 21, the electrolytic cell 2 is a box structure with an open top, and a workpiece 201 to be processed and a prefabricated mold 202 which are attached to each other are contained in the box structure of the electrolytic cell 2; the prefabricated mold 202 is made of metallic glass formed by mutually compounding metal and glass materials. Prefabricated mould 202 with treat that prefabricated semicircle type guiding hole 2021 that runs through from top to bottom has prefabricated on the contact surface of machined part 201, semicircle type guiding hole 2021 and the semicircle orifice 2011 of treating drilling on the machined part 201 are laminated each other and are formed complete round hole structure, and the round hole axis that semicircle type guiding hole 2021 and semicircle orifice 2011 formed, and the axis collineation with tool electrode 513 to treat that machined part 201 and prefabricated mould 202 both sides pass through positioning fixture 22 location centre gripping. According to the actual requirement of processing, the semi-circular guide holes 2021 with different diameters are prefabricated on the high-temperature-resistant and transparent prefabricated mold 202 in advance, can be matched with the semi-circular holes 2011 with different sizes, and the micro lead screw 23 arranged at the bottom of the electrolytic bath 2 drives the semi-circular follow-up sheet 231 to synchronously feed with the tool electrode 513 at the same speed in the same direction, so that the semi-circular holes 2011 with different diameters are processed on the workpiece 201 to be processed.
As shown in fig. 5, a working fluid circulating system is disposed outside the electrolytic cell 2, the working fluid circulating system realizes the fluid inlet of the fluid inlet pipe 251 and the fluid outlet of the fluid outlet pipe 252 disposed outside the electrolytic cell 2 by the circulating pump 25, and the fluid outlet of the fluid outlet pipe 252 flows into the waste fluid treatment device 26 for purification treatment, and then flows into the electrolytic cell 2 again through the fluid inlet pipe 251 for cyclic utilization, so as to provide a good discharge environment for the electric machining, and discharge the machining debris in time and supplement fresh working fluid in time, once the debris is not discharged in time, the progress and machining quality of the electric machining are affected, and the fresh working fluid is a necessary condition for the normal operation of the electric machining, and the fresh working fluid is favorable for improving the surface quality of the machined part.
As shown in fig. 6-8, the positioning fixture 22 includes a clamping block 221, a turntable 222, and a limiting block 223, the middle portion of the clamping block 221 is a hollow structure with two end portions penetrating through, two sides of the hollow position where the clamping block 221 is located are respectively provided with a slot 2211, the limiting block 223 is slidably engaged in the slot 2211, and the limiting block 223 is composed of a strip-shaped rack 2231 and a limiting plate 2232 on the inner side surface;
the fluted disc 2221 under the rotary disc 222 penetrates through the positioning fixture 22 to the hollowed part and is meshed with the strip-shaped rack 2231, the surface of the rotary disc 222 is provided with a second through hole 2222, the second through hole 2222 and a plurality of groups of first through holes 2212 arranged on the upper surface of the clamping block 221 are coaxially distributed, when in use, after the workpiece 201 to be machined and the prefabricated mold 202 are placed, by rotating the rotating disc 222, the toothed disc 2221 extends the strip-shaped rack 2231 of the limiting block 223 towards the two ends, when the fixed position is reached, locking is then performed by the locking lever 224 simultaneously penetrating the first through-hole 2212 and the second through-hole 2222, so as to secure the member to be processed 201 and the prefabricated mold 202, the positioning jig 22 has a height 2/3 which is the height of the member to be processed 201, to ensure the stability and reliability of the clamping between the workpiece 201 to be processed and the prefabricated mold 202, the clamping of the workpieces 201 to be machined of different sizes and models can be met, and the machining precision is prevented from being influenced under the condition that the clamping is unstable.
A semicircular follow-up plate 231 is arranged at the top of the micro lead screw 23, the semicircular follow-up plate 231 is in clearance fit in the semicircular guide hole 2021 and slides along the axial direction, so that the semicircular follow-up plate 231 is prevented from being excessively matched with the semicircular guide hole 2021 to cause the sliding resistance of the semicircular follow-up plate 231, the upper surface of the semicircular follow-up plate 231 is flush with the upper surface of the semicircular hole 2011, the lower end surface of the tool electrode 231 keeps the same distance with the processing clearance, the bottom of the micro lead screw 23 is driven by a second servo motor 24 at the side of the support 21, a sealing rubber sleeve 232 is arranged at the position of a through hole where the micro lead screw 23 penetrates through the bottom of the electrolytic bath 2, the lower end surface of the tool electrode 231 drills, and the semicircular follow-up plate 231 keeps a synchronous descending trend with the tool electrode 231 under the driving of the micro lead screw 23, the working solution liquid level that holds in the electrolysis trough 2 submerges totally and treats 1 ~ 2cm of upper surface at work piece 201 and prefabricated mould 202 place. Because in the in-service use process, semicircle type follow-up piece 231 and semicircle type guiding hole 2021 adopt non-interference fit, consequently can be full of the working solution in semicircle type guiding hole 2021, and the working solution can produce certain chemical corrosion to the outer wall of miniature lead screw 23, so the outer wall at miniature lead screw 23 has cup jointed corrosion resistance protective sheath 2301 as required, avoids the corruption of working solution to miniature lead screw 23 outer wall to ensure miniature lead screw 23's transmission precision and life.
The miniature screw 23 driven by the second servo motor 24 drives the semicircular follow-up plate 231 to perform axial feeding, the miniature screw 23 and the high-speed electric spindle 51 perform synchronous and equidirectional and common-speed feeding, and meanwhile, the miniature screw 23 does not generate intermittent feeding defects during transmission, once the semicircular follow-up plate 231 and the upper surface of the semicircular hole 2011 are not in the same horizontal plane, the discharge peak current of the tool electrode 513 is reduced, and the discharge phenomenon at the moment is weakened and becomes unobvious, so that the actual machining precision is influenced.
The high-speed cameras 6 are two groups and are respectively connected with the upper end part and the side edge part of the electric spindle clamp 5 through metal corrugated pipes, the main bodies of the metal corrugated pipes are made of 304 or 316 type stainless steel materials, and the high-speed cameras 6 above the metal corrugated pipes can be used for observing and recording the phenomena of bubble generation, air film formation and discharge in the machining gap between the workpiece 201 to be machined and the tool electrode 513; meanwhile, the high-speed camera 6 on the right side can be used for observing and recording the phenomena of bubble generation, air film formation and discharge in the machining gap between the semicircular guide hole 2021 and the tool electrode 513; the discharge condition and the material removal condition in the machining gap are researched by further analyzing the bubble generation, the gas film formation and the discharge phenomenon in the machining gap between the front machining gap and the rear machining gap.
During the use, at first be fixed in the operation panel with test bench base 1 level for improve test bench base 1 and add stability man-hour, guarantee track platform 4 for test bench base 1's upper surface straightness that hangs down later with the help of the amesdial, and the depth of parallelism between track platform 4 and the motion slider 4, thereby be favorable to reducing the relative error when processing semi-cylindrical hole 2011. The high-speed electric spindle 51 and the electric spindle clamp 5 are usually assembled by an electric spindle company at the time of shipment, so that the high-speed electric spindle 51 and the electric spindle clamp 5 are only required to be integrally installed on the sliding block 52, and the parallelism among the electric spindle clamp 5, the sliding block 52 and the guide rail platform 4 is ensured.
Then, the relative height of the electric spindle clamp 5 is adjusted, the electrolytic bath 2 is fixedly installed on the support 21 through screws, and according to actual processing requirements, a tool electrode 513 with a proper diameter size is selected and clamped below the electric spindle chuck 512, then the workpiece 201 to be processed and the prefabricated mold 202 are installed in the box body structure of the electrolytic bath 2, the surfaces of the middle parts of the workpiece 201 to be processed and the prefabricated mold 202 are tightly attached, and meanwhile, the axis of a round hole formed by the semicircular guide hole 2021 and the semicircular hole 2011 is ensured to be collinear with the axis of the tool electrode 513. At this time, the upper surface of the semicircular follower plate 231 is flush with the upper surface of the semicircular hole 2011, so as to ensure that the lower end surface of the tool electrode 231 is consistent with the machining gaps existing on the upper surfaces of the semicircular follower plate 231 and the semicircular hole 2011, and ensure the machining accuracy of the semicircular hole.
Meanwhile, a semicircular follow-up piece 231 capable of synchronously feeding with the tool electrode 513 is installed in the high-temperature-resistant transparent metallic glass prefabricated mold 202, the distance between the upper surface of the semicircular follow-up piece 231 and the lower end surface of the tool electrode 513 is the same as the machining gap, the outer surface of the tool electrode 513 and a semicircular guide hole 2021 prefabricated in the high-temperature-resistant transparent prefabricated mold 202 form a side machining gap, and the lower end surface of the tool electrode 513 and the upper surface of the semicircular follow-up piece 231 form an end surface machining gap. The micro lead screw 23 driven by the second servo motor 24 drives the semicircular follow-up plate 231 to perform axial feeding, and the micro lead screw 23 and the high-speed electric spindle 51 perform synchronous and equidirectional co-speed feeding, so that a complete circular hole structure is always ensured between the processed semicircular hole 2011 and the section of the semicircular follow-up plate 231 in the process of electric discharge machining.
During machining, injecting working liquid into the electrolytic bath 3, enabling the working liquid to completely immerse the upper surface of the workpiece to be machined 201 by 1-2 cm, and then adjusting the visual angle of the high-speed camera 6 to enable the working liquid to be in the optimal position for observing the machining condition in the electrolytic bath 2, so as to observe the machining condition in the side machining gap and the end machining gap of the workpiece to be machined 201 in real time; connecting a pulse power supply of the machining test device, adjusting an initial machining gap between the tool electrode 513 and the workpiece 201 to be machined, and connecting the industrial personal computer 3 with the high-speed camera 6 through a data transmission line so as to observe and record the phenomena of bubble generation, air film formation and discharge in the machining gap in real time through the high-speed camera 6; finally, the tool electrode 513 will form a semi-circular aperture 2011 at the edge of the workpiece 201.
As shown in fig. 9, for the embodiment of the present invention, in the actual process, to realize the synchronous and co-speed feeding between the micro lead screw 23 and the high-speed electric spindle 52, the feedback adjustment needs to be performed on the motion control ends of the micro lead screw and the high-speed electric spindle, and at first, the high-speed electric spindle 52 controls the downward feeding speed of the tool electrode 513 through the motion controller, and can adjust the feeding speed according to the actual processing requirement. Meanwhile, the micro lead screw 23 is driven by a second servo motor 24, the second servo motor 24 is driven by an upper computer, the transmission ratio of the micro lead screw 23 to the second servo motor 24 is a fixed value, and the feeding speed of the micro lead screw 23 is adjusted by controlling the rotation of the second servo motor 24. And comparing the feeding speeds of the two parts, and immediately carrying out feedback regulation if asynchronous feeding occurs, and ensuring synchronous and common-speed feeding of the two parts. Finally, synchronous and same-direction common-speed feeding between the micro lead screw 23 and the high-speed electric spindle 51 is ensured in the machining process.
To sum up the utility model discloses not only reduced the true mobile state of working solution among the electric spark electrolysis discharge combined machining process, also guaranteed the integrality of intercoupling between electric field, magnetic field, thermal field, the flow field among the electrochemical discharge machining process moreover to the finite element simulation analysis for the electric spark electrolysis discharge combined machining of semicircle orifice provides experimental reference.
The electrical components that appear in this application all control through external power supply and the switch of external intercommunication when using.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (10)
1. An electric spark electrolysis discharge combined machining test device for a semicircular hole comprises a test bed base (1), an electrolytic cell (2) and an industrial personal computer (3), and is characterized in that a guide rail platform (4) is arranged above the test bed base (1) along the verticality direction, an electric spindle clamp (5) is connected to the side edge of the guide rail platform (4) in a sliding mode, a high-speed electric spindle (51) is installed in the electric spindle clamp (5) in an interference fit mode, an electric leading connector (511) is arranged at the top of the high-speed electric spindle (51), an electric spindle clamp (512) is installed at the bottom of the high-speed electric spindle (51), a tool electrode (513) is clamped on the electric spindle clamp (512), and the electrolytic cell (2) is arranged under the tool electrode (513);
the bottom of the electrolytic cell (2) is connected to the test bed base (1) through a support (21), the electrolytic cell (2) is of a box body structure with an open top, and a workpiece to be machined (201) and a prefabricated mold (202) which are mutually attached are contained in the box body structure; a semicircular guide hole (2021) which penetrates through up and down is prefabricated on the contact surface of the prefabricated mould (202) and the workpiece to be machined (201), the semicircular guide hole (2021) and a semicircular hole (2011) drilled on the workpiece to be machined (201) are mutually attached to form a complete circular hole structure, the prefabricated mould (202) is arranged under the tool electrode (513), and the two sides of the workpiece to be machined (201) and the prefabricated mould (202) are positioned and clamped through a positioning clamp (22);
a miniature lead screw (23) penetrates through a channel where the semicircular guide hole (2021) is located from top to bottom, a semicircular follow-up plate (231) is arranged at the top of the miniature lead screw (23), the semicircular follow-up plate (231) is in clearance fit in the semicircular guide hole (2021) and slides along the axial direction, the bottom of the miniature lead screw (23) is driven by a second servo motor (24) on the side of the support (21), a sealing rubber sleeve (232) is arranged at a through hole position where the miniature lead screw (23) penetrates through the bottom of the electrolytic bath (2), and working liquid is contained in the electrolytic bath (2);
the side where the electric spindle clamp (5) is located is provided with a high-speed camera (6), the lateral electrolytic cell (2) processing conditions are observed and recorded through the high-speed camera (6), and meanwhile, the high-speed camera is connected to an industrial personal computer (3) through a data transmission line for storage.
2. An electric spark electrolysis discharge combined machining test device for a semicircular hole according to claim 1, characterized in that a slide rail (401) is arranged on the side of the guide rail platform (4), a first servo motor (41) is arranged on the top of the slide rail (401), the first servo motor (41) is used for driving a slide block (52) which is slidably connected in the slide rail (401) to move, and the side of the slide block (52) is connected with the electric spindle clamp (5).
3. The electric spark electrolysis discharge composite machining test device for the semicircular hole is characterized in that the sliding block (52) is connected with the electric spindle clamp (5) through a first screw (501), and the parallelism among the electric spindle clamp (5), the sliding block (52) and the guide rail platform (4) is maintained;
the central axis of the round hole formed by the semicircular guide hole (2021) and the semicircular hole (2011) is superposed with the central axis of the tool electrode (513).
4. The electric spark electrolysis discharge composite machining test device for the semicircular hole is characterized in that the positioning fixture (22) comprises a clamping block (221), a rotary table (222) and a limiting block (223), the middle part of the clamping block (221) is of a hollow structure with two penetrating ends, clamping grooves (2211) are respectively formed in two sides of the hollow position where the clamping block (221) is located, the limiting block (223) is clamped in the clamping grooves (2211) in a sliding mode, and the limiting block (223) consists of a strip-shaped rack (2231) and a limiting plate (2232) on the inner side face;
a fluted disc (2221) positioned below the rotary disc (222) penetrates through the positioning clamp (22) to the hollowed-out part and is meshed with the strip-shaped rack (2231), a second through hole (2222) is formed in the surface where the rotary disc (222) is positioned, the second through hole (2222) and a plurality of groups of first through holes (2212) formed in the upper surface of the clamping block (221) are coaxially distributed, and the locking rod (224) penetrates through the first through hole (2212) and the second through hole (2222) to be locked;
the height of the positioning clamp (22) accounts for 2/3 of the height of the workpiece to be processed (201) so as to ensure the stability and reliability of clamping between the workpiece to be processed (201) and the prefabricated die (202).
5. An electric spark electrolysis discharge combined machining test device for a semicircular hole according to claim 1, characterized in that the tool electrode (513) is detachably connected with the electric spindle chuck (512).
6. An electric spark electrolysis discharge combined machining test device for a semicircular hole according to claim 1, characterized in that the test bed base (1) is made of marble material; the prefabricated mould (202) is made of metal glass formed by mutually compounding metal and glass materials.
7. The electric spark electrolysis discharge combined machining test device for the semicircular hole is characterized in that a corrosion-resistant protective sleeve (2301) is sleeved on the outer wall of the micro lead screw (23).
8. The electric spark electrolysis discharge combined machining test device for the semicircular holes is characterized in that a working solution circulating system is arranged on the outer side of the electrolytic tank (2), the working solution circulating system realizes liquid inlet of a liquid inlet pipe (251) and liquid outlet of a liquid outlet pipe (252) which are arranged on two sides of the electrolytic tank (2) through a circulating pump (25), the liquid outlet of the liquid outlet pipe (252) flows into a waste liquid treatment device (26) for purification treatment, and then flows into the electrolytic tank (2) again through the liquid inlet pipe (251) for recycling.
9. An electric spark electrolysis discharge combined machining test device for a semicircular hole according to claim 1, wherein the high-speed cameras (6) are arranged in two groups, and are respectively arranged at two sides of the electric spindle clamp (5) through metal corrugated pipes, and the main bodies of the metal corrugated pipes are made of 304 or 316 type stainless steel materials.
10. An electric spark electrolysis discharge combined machining test device for a semicircular hole according to claim 1, characterized in that the working fluid level contained in the electrolytic bath (2) completely submerges the upper surface of the workpiece (201) to be machined by 1-2 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921285395.9U CN210731280U (en) | 2019-08-08 | 2019-08-08 | Electric spark electrolysis discharge combined machining test device for semicircular hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921285395.9U CN210731280U (en) | 2019-08-08 | 2019-08-08 | Electric spark electrolysis discharge combined machining test device for semicircular hole |
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| CN210731280U true CN210731280U (en) | 2020-06-12 |
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| CN201921285395.9U Expired - Fee Related CN210731280U (en) | 2019-08-08 | 2019-08-08 | Electric spark electrolysis discharge combined machining test device for semicircular hole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293272A (en) * | 2019-08-08 | 2019-10-01 | 安徽理工大学 | A kind of electric spark and electrolysis electric discharge Compound Machining experimental rig for semicircle orifice |
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2019
- 2019-08-08 CN CN201921285395.9U patent/CN210731280U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293272A (en) * | 2019-08-08 | 2019-10-01 | 安徽理工大学 | A kind of electric spark and electrolysis electric discharge Compound Machining experimental rig for semicircle orifice |
| CN110293272B (en) * | 2019-08-08 | 2024-04-26 | 安徽理工大学 | Electric spark electrolytic discharge composite machining test device for semicircular hole |
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