CS208618B1 - Vertical device for electrochemical-mechanical removing of burrs and rounding of the edges - Google Patents
Vertical device for electrochemical-mechanical removing of burrs and rounding of the edges Download PDFInfo
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- CS208618B1 CS208618B1 CS848279A CS848279A CS208618B1 CS 208618 B1 CS208618 B1 CS 208618B1 CS 848279 A CS848279 A CS 848279A CS 848279 A CS848279 A CS 848279A CS 208618 B1 CS208618 B1 CS 208618B1
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- Prior art keywords
- electrochemical
- edges
- workpiece
- rounding
- burrs
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- 239000003792 electrolyte Substances 0.000 claims description 10
- 238000003754 machining Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000004577 thatch Substances 0.000 description 1
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
Vynález sa týká prevedenia vertikálneho zariadenia na elektrochemicko-mechanické odstraňovanie otrepov a zaohlovanie hrán na kovových elektrovodivých súčiastkách, najmS po trieskovom obrábani.The present invention relates to an embodiment of a vertical device for electrochemical-mechanical deburring and edge burring on metallic electrically conductive components, in particular after chip machining.
V súčasnej době sa v rSznych odvetviach priemyslu čoraz viac používajú rdzne tvarované profily zhotovované přetlačováním. Vo výrobě je potřebné, tieto profily deliť či už střiháním, řezáním a podobné na kusy rSznej dížky. Povrch týchto dělených častí v deliacom mieste vykazuje vel’kú drsnoať a poměrně velké otřepy na hranách deliacich pldch. Odstraňovanie uvedených otrepov a zaohlovanie hrán strojným trieskovým obrábaním je u týchto aúči as tok prakticky nemožné, preto sa vo vačáine prípadov prevádza ručně, čo je vel’mi pracné a náročné na pracovné sily. Kedže ea tu jedná vSčěinou o odstraňovanie otrepov a zaoblovaní a hrán u tvarovo zložitých profilov, javí sa vhodné túto operáciu prevádzať elektroche- , micky.At present, various extruded extrusion profiles are increasingly being used in various industries. In production it is necessary to divide these profiles either by cutting, cutting and the like into pieces of length. The surface of these split parts at the dividing point exhibits large roughness and relatively large burrs at the edges of the dividing edges. Removal of said burrs and edge burring by machine cutting is practically impossible with these luminescence, so in most cases it is carried out manually, which is very labor intensive and labor intensive. Since this generally involves the removal of burrs and rounding and edges of complex shapes, it seems appropriate to carry out this operation electrochemically.
U doteraz známých zariadení na elektrochemické odstraňovanie otrepov a zaohlovanie hrán kovových elektrovodivých obrobkov musí byť medzi pracovnou elektrodou a obrobkom nastavená pracovné medzera, do ktorej sa privédza elektrolyt pod tlakom. Pracovná elektroda je voči obrobku buď pevne ustavená, alebo pohyblivé. Při odstraňovaní otrepov sa odoberá materiál z celého povrchu, alebo len z ostrých hrán. Pri odstraňovaní otrepov u obrobkovIn the prior art electrochemical deburring and edge burring devices for metallic electrically conductive workpieces, a working gap must be set between the working electrode and the workpiece, into which the electrolyte is supplied under pressure. The working electrode is either fixed or movable relative to the workpiece. When deburring, material is removed from the entire surface or only from sharp edges. When deburring workpieces
208 618208 618
208 018 váčších rozmerov, alebo tvarové zložitýoh súčiastok je potřebné zhotovovat zložité přípravky na přesné ustavenie elektrody voči obrobku, alebo voči obrábaným hranám. Pri váčších otrepoch alebo nerovnostiach povrchu, hrozí pri obrábaní nebezpečie ekratu medzi nástrojovou elektrodou a obrobkom, k čomu často doohádza i pri odpadnutí uvolněného otřepu. Pri elektrochemickom odstraňovaní otrepov a zaoblovaní hrán vo váčine u doteraz známých zariadení musí byt celá alebo značná část obrobku ponořená v elektrolyte, čo potom spdsobuje nežiadúci úber materiálu v miestach mimo hrán a vyššiu spotřebu elektrickej energie.208 018 of larger dimensions, or complex shaped parts, it is necessary to make complex jigs for precise alignment of the electrode with the workpiece or with the machined edges. In the case of heavy burrs or surface irregularities, there is a risk of an erosion during machining between the tool electrode and the workpiece, which often occurs even if the burrs that have come loose are removed. In electrochemical deburring and vacuum rounding of known devices, all or a significant portion of the workpiece must be submerged in the electrolyte, which in turn results in undesirable material removal at locations away from the edges and higher power consumption.
Vyššie· uvedená nevýhody zmierňuje vertikálna zariadenie na elektrochemicko-mechanioké odstraňovanie otrepov a zaoblovanie hrán podTa vynálezu, ktorého podstatou je, že čelná plocha nóatrojovej elektrody a v náboji otočné uložený elektronevodivý pórovitý kotúč vytvárajú pracovnú medzeru, do ktorej vyúsťuje v hornej časti cez nástrojová elektrodu prívodný kanál elektrolytu.The above-mentioned disadvantages are alleviated by a vertical electrochemical-mechanical deburring and edge rounding device according to the invention, which is based on the fact that the front surface of the tool electrode and the rotatably mounted electrically conductive porous disk form a working gap into the feed channel electrolyte.
Vertikálnym zariadením na elektrochemicko-mechanické odstraňovanie otrepov a zaoblovanie hrán podTa vynálezu sa docieli možnost použit podstatné vyššie hodnoty pracovného napátia a tak dosiahnut dostatočne velkú prúdovú hustotu i na váčšiu vzdialenost pracovnej elektrody od obrobku. Vynález ďalej vylučuje možnost vzniku skratu medzi nástrojovou elektrodou a obrobkom, ako i elektrochemická koróziu neobrábaných častí obrobku. ĎalŠou přednostou vynálezu je, že nie je potřebný přetlak elektrolytu, pretože vodík, ktorý sa v priebehu obrábania uvolňuje na katodě, je odstraňovaný prúdom elektrolytu z tohoto priestoru a nedostává sa tak do priestoru anody, pretože vodík by v pracovnou priestore spósoboval pokles vodivosti elektrolytu.The vertical device for electrochemical-mechanical deburring and edge rounding according to the invention makes it possible to use substantially higher working voltage values and thus achieve a sufficiently high current density even for a greater distance of the working electrode from the workpiece. The invention further eliminates the possibility of a short circuit between the tool electrode and the workpiece as well as electrochemical corrosion of the unmachined parts of the workpiece. A further advantage of the invention is that there is no need for electrolyte overpressure, since the hydrogen that is released on the cathode during machining is removed by the electrolyte stream from this space and thus does not reach the anode space because hydrogen would cause a decrease in electrolyte conductivity.
Na pripojenom výkrese je znázorněné příkladné prevedenie zariadenia podTa vynálezu, kde je zariadenie nakreslené v řeze.The accompanying drawing shows an exemplary embodiment of a device according to the invention, wherein the device is shown in cross-section.
Vertikálně zariadenie na elektrochemicko-mechanické odstraňovanie otrepov a zaoblovanie hrán pozostáva zo základnej došky 2> na ktorej je pevne uložené stojina 6, v ktorej je pevne uložený náboj £. Na náboji 2 je pevne uložená nástrojová elektroda ,1 a medzi stojinou 6 a nástrojovou elektrodou 1 je umiestnená elektronevodivá podložka £. VedTa čelnej plochy nástrojovej elektrody 1 je otočné prostredníctvom hriadela 8 v náboji 2 uložený elektronevodivý pórovitý kotúč 2. Medzi nástrojovou elektrodou 1 a elektronevodivým pórovitým kotúčom 2 je vytvořená pracovná medzera 2 ® velkosti 0,1 a 0,5 mm. Na horňú část nástrojovej elektrody 1 je připojený prívodný kanál £ vyúsťujúci do pracovnej. medzery 2· Na nástrojovej elektróde 2 je po obvode pevne uchytený kryt 10. Hriadel’ 8 je na konci opatřený remenicou 12 spojenou řemenovým prevodom a pohonovou jednotkou /na obrázku nezakreelené/. Na základnej doske 2 je pevne uložený oproti čelu elektronevodiváho pórovitého kotúča 2. pracovný stĎl 11 pre uloženie obrobku 12· Nástrojová elektroda 1 je připojená na svorku záporného napátia a pracovný stdl je připojený na svorku kladného napátia.Vertically, the device for electrochemical-mechanical deburring and edge rounding consists of a base thatch 2 on which the web 6 is fixed, in which the hub 6 is fixed. A tool electrode 1 is fixedly mounted on the hub 2 and an electrically conductive pad 6 is arranged between the web 6 and the tool electrode 1. Next to the front surface of the tool electrode 1, an electrically conductive porous disc 2 is rotatably supported by a shaft 8 in the hub 2. A working gap 2 of 0.1 and 0.5 mm is formed between the electrode 1 and the electrically conductive porous disc 2. At the upper part of the tool electrode 1 is connected a feed channel 6 resulting in a working channel. gaps 2 · The tool electrode 2 has a circumferentially fixed cover 10 around the circumference. The shaft 8 is at the end provided with a pulley 12 connected by a belt drive and a drive unit (not shown in the figure). The workpiece 11 for receiving the workpiece 12 is fixedly mounted on the base plate 2 opposite the face of the electrically conducting porous disk 2. The tool electrode 1 is connected to the negative voltage terminal and the working electrode is connected to the positive voltage terminal.
Pohonová jednotka otáča remenicou 12 prostredníctvom hriadela 8 eisktronevodivý pórovitý kotúč 2. Elektrolyt sa privádza prívodným kanálom £ do hornej časti pracovnejThe drive unit rotates the pulley 12 by means of the shaft 8 and the electro-conductive porous disk 2. The electrolyte is fed through the supply channel 6 to the upper part of the working unit.
208 018 medzery 2, eez ktorú elektrolyt preteké smerom dolu, pričom cez elektronevodivý pórovitý kotúč 2 preeiakava na jeho činná plochu. Na činnej ploché elektronevodivého pórovitého kotúča 2 vytvára elektrolyt tenkú vrstvu. K Činnej ploché elektronevodivého pórovitého kotúča 2 sa na pracovnom stole 11 prisúvajú obrobky 13 na doraz. Odstraňovanie otrepov a zaoblovanie hrán obrobkov 13 sa prevádza jednak elektrochemicky a jednak mechanicky prostredníctvom elektronevodivého pórovitého kotúča 2.208 018 a gap 2 through which the electrolyte flows downwards, and through the electrically conductive porous disk 2 it leaks onto its working surface. The electrolyte forms a thin layer on the active flat electrically conductive porous disk 2. Workpieces 13 are pushed on the work table 11 to the active flat electro-conductive porous disk 2 as far as the stop. The deburring and rounding of the workpiece edges 13 is carried out electrochemically and mechanically by means of an electrically conductive porous disk 2.
Vynález je zvlášť vhodný pre automatizáciu odstraňovanie otrepov a zaoblovanie hrán v hromadnéj výrobě pri delení hliníkových tvarových profilov v elektrotechnika, trubkový materiál a podobné.The invention is particularly suited for automating deburring and edge rounding in mass production by cutting aluminum shaped profiles into electrical engineering, pipe material and the like.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS848279A CS208618B1 (en) | 1979-12-06 | 1979-12-06 | Vertical device for electrochemical-mechanical removing of burrs and rounding of the edges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS848279A CS208618B1 (en) | 1979-12-06 | 1979-12-06 | Vertical device for electrochemical-mechanical removing of burrs and rounding of the edges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS208618B1 true CS208618B1 (en) | 1981-09-15 |
Family
ID=5435371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS848279A CS208618B1 (en) | 1979-12-06 | 1979-12-06 | Vertical device for electrochemical-mechanical removing of burrs and rounding of the edges |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS208618B1 (en) |
-
1979
- 1979-12-06 CS CS848279A patent/CS208618B1/en unknown
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