CS248462B1 - Rotary milling equipment - Google Patents

Rotary milling equipment Download PDF

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CS248462B1
CS248462B1 CS1006683A CS1006683A CS248462B1 CS 248462 B1 CS248462 B1 CS 248462B1 CS 1006683 A CS1006683 A CS 1006683A CS 1006683 A CS1006683 A CS 1006683A CS 248462 B1 CS248462 B1 CS 248462B1
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Czechoslovakia
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axis
spindle
cylindrical
housing
motor
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CS1006683A
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Czech (cs)
Slovak (sk)
Inventor
Milan Dobrota
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Milan Dobrota
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Priority to CS1006683A priority Critical patent/CS248462B1/en
Publication of CS248462B1 publication Critical patent/CS248462B1/en

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Abstract

Zariadenie umožňuje opracovanie obrobkov z čelnej strany rotujúcim viacbritovým nástrojom, ktorý súčasne s rotáciou okolo viastnej osi, vykonává pohyb po kruhovej dráhe s premenlivou excentrickou. Zariadenie je vytvořené z vřetena (1) excentricky uloženého vo valcovom otcčnom puzdre (6), ktoré je excentricky uložené vo valcovej, rotujúcej skrini (22i), uloženej v skrini (8) zariadenia. Vřeteno (1) je poháňané motorom M2 (17) pomocou troch ozubených kolies (13, 14, 16) a k rotácii valcovej skrine (22) sa využívá motor Ml (12) s dvojicou ozubených kolies (10, 11). Excentrická vřetena (1) voči ose (19) otáčania valcovej skrine (22) sa nastavuje ovládacou hlavou (5). Zariadenie je uložené na posuvovej jednotke (21).The device enables machining of workpieces from the front side with a rotating multi-blade tool, which simultaneously with rotation around the central axis, performs movement along a circular path with a variable eccentricity. The device is formed of a spindle (1) eccentrically mounted in a cylindrical rotary sleeve (6), which is eccentrically mounted in a cylindrical, rotating housing (22i), mounted in the housing (8) of the device. The spindle (1) is driven by a motor M2 (17) using three gears (13, 14, 16) and a motor Ml (12) with a pair of gears (10, 11) is used to rotate the cylindrical housing (22). The eccentricity of the spindle (1) relative to the axis (19) of rotation of the cylindrical housing (22) is adjusted by the control head (5). The device is mounted on a feed unit (21).

Description

Vynález sa týká zarialenia na opracovanie obrobkov z čelnej strany nástrojom, ktorý súčasne s rotáciou okolo vlastně] osi vykonává pohyb po kruhovej dráhe s prestaviternou excentricitou. Zariadenie je novým stavebnicovým prvkom jednoúčelových obrábacích strojov.The invention relates to a device for machining workpieces from the front side by means of a tool which, along with the rotation about the axis in fact, performs a circular path of variable eccentricity. The machine is a new modular element of single-purpose machine tools.

Doposial podobné zariadenie nie je známe.No such device is known.

Existujúce zariadenia na čelné opracovanie obrobkov sú založené na principe pohybu nástroja po kruhovej dráhe s premenlivou excentricitou pomocou priečneho suporta, pričom samotný nástroj sa okolo vlastnej osi neotáča. Preto k čelným operáciam, pracujúcim na tomto principe, možno spravidla použil len jeden jednobritový nástroj. Trvanlivost takovéhoto nástroja bývá preto krátká. Odoberaná trieska je obyčajne dlhá, plynulá, spirálového tvaru a bývá predmetom prevádzkových problémov stroja. Táto technológia je nevhodná pre hrubovacie operácie s velkým úberom materiálu obrobku.Existing workpiece finishing machines are based on the principle of moving the tool on a circular orbit with variable eccentricity by means of a cross slide, the tool itself not rotating about its own axis. Therefore, as a rule, only one single-bit tool was used for front-line operations working on this principle. The durability of such a tool is therefore short. The chip being removed is usually long, continuous, spiral in shape and is subject to machine problems. This technology is unsuitable for roughing operations with large material removal.

Uvedené nedostatky odstraňuje zariadenie podl'a vynálezu, podstatou ktorého je, že vřeteno je excentricky uložené vo valcovom otočnom puzdre, ktoré je excentricky uložené vo valcovej rotačnej skrini, radiálno-axiálne uloženej v ložiskách skrine zariadenia, a na vřeteno je napojený pomocou troch ozubených kolies náhonový motor M2, pričom prvé koleso je uložené v ose rotácie valcovej skrine, totožnej s osou motora M2, druhé koleso v ose vřetena, zatial čo válcová skriňa je napojená na motor Ml prostredníctvom ozubených kolies, z ktorých prvé koleso je uložené v ose valcovej skrine a druhé koleso v ose motora Ml.The above-mentioned drawbacks are eliminated by the device according to the invention, which is characterized in that the spindle is eccentrically mounted in a cylindrical rotary bush, which is eccentrically mounted in a cylindrical rotary housing radially-axially supported in bearings of the device housing and connected to the spindle by three gears a drive motor M2, wherein the first wheel is mounted in the axis of rotation of the cylindrical housing identical to the axis of the motor M2, the second wheel is in the spindle axis, while the cylindrical housing is coupled to the motor M1 by gears of which the first wheel is mounted in the axis of the cylindrical housing and a second wheel in the engine axis M1.

Ďalej podstatou vynálezu je, že válcové puzdro je opatřené na čelnej straně ovládacou hlavou a spvňovacím zariadením nastavené} excentricity.It is a further object of the invention that the cylindrical sleeve is provided with an operating eccentricity on the front side of the control head and a reinforcing device.

Vytvoření tohto nového stavebnicového prvku jednoúčelových obráběcích strojov podlá vynálezu, tj. zariadenia na rotačně frézovanie, sa dosiahlo to, že zariadenie umožňuje pře opracovanie obrobkov z čelnej strany využit rotačně, viacbritové nástroje s podstatné vyššou trvanlivosťou, ako je tomu u nástrojov jednobritových. Vznkajúca trieska je krátká a má šupinový tvar, typický pre frézovacie operácie, čo je velmi výhodné z hlediska odběru triesok. Technolégia rotačného frézovania je vhodná zvlášť pre hrubovacie operácie s velkým úberom materiálu obrobku.The construction of this new modular element of single-purpose machine tools according to the invention, i. rotary milling device, it has been achieved that the device allows rotary, multi-bit tools with substantially higher tool life to be used for machining workpieces from the front side than with single-bit tools. The resulting chip is short and has a flake shape, typical of milling operations, which is very advantageous in terms of chip removal. Rotary milling technology is particularly suitable for roughing operations with large material removal.

Příklad usporiadania zariadenia na rotačně frézovanie podlá vynálezu je schematicky znázorněný vo výkresovej časti, kde obr. 1 představuje bokorys zariadenia a na obr. 2 je čelný pohíad na zariadenie.An example of an arrangement of a rotary milling device according to the invention is schematically shown in the drawing, where FIG. 1 is a side view of the device; and FIG. 2 is a front view of the device.

Podlá vynálezu tvoří zariadenie na rotačně frézovanie nový samostatný stavebnicový prvok jednoúčelových obrábacích strojov, ktorý je vytvořený z válcového otočného puzdra 6, v ktorom je excentricky uložené vřeteno 1 v radiálnom ložisku 4 a radiálno-axiálnom ložisku 7. Čelo válcového puzdra 6 je opatřené ovládacou hlavou S a spevňovacím zariadením 2 nastavenej excentricity vřetena 1 voči ose 19 otáčania valcovej skrine 22, v ktorej je válcové puzíro 8 excentricky uložené v ložiskách ,23 a 24. Válcová skriňa 22 je uložená v ložiskách 3, 9 v skrini 8 zariadenia.According to the invention, the rotary milling device forms a new separate modular element of single-purpose machine tools, which is formed of a cylindrical rotary bushing 6 in which the spindle 1 is mounted eccentrically in the radial bearing 4 and the radial-axial bearing 7. With a reinforcement device 2 of the spindle 1 set eccentricity relative to the axis of rotation 19 of the cylindrical housing 22 in which the cylindrical sleeve 8 is eccentrically mounted in the bearings 23 and 24. The cylindrical housing 22 is supported in the bearings 3, 9 in the housing 8 of the device.

Náhon vřetena 1 obstarává motor M2 17, kinematicky napojený na vřeteno 1 ozubenými kolesami 16, 14, 13, z ktorých prvé koleso 16 je uložené v ose 19 motora M2 17. druhé koleso 14 v cse 15 válcového puzdra 6 a tretie koleso 13 je uložené v ose vřetena 1. Osa motora M2 17 je totožná s osou 19 rotácie valcovej skrine 22, náhon ktorej je zabezpečený jej kinematickým přepojením s hnacím motorom Ml 12 pomocou dvojice ozubených kolies 10, 11, z ktorých prvé koleso 10 je uložené v ose motora Ml 12 a druhé koleso 11 v ose 19 otáčania valcovej skrine 22.The spindle drive 1 is provided by a motor M2 17, kinematically coupled to the spindle 1 by gears 16, 14, 13, of which the first wheel 16 is mounted in the axis 19 of the M2 motor 17. the second wheel 14 is in the bushing section 15 and the third wheel 13 is mounted. in the spindle axis 1. The axis of the motor M2 17 is identical to the axis 19 of the rotation of the cylindrical housing 22, the drive of which is ensured by its kinematic connection with the driving motor M1 12 by a pair of gears 10, 11 of which the first wheel 10 is mounted in the motor axis M1 12 and the second wheel 11 in the rotational axis 19 of the cylindrical housing 22.

Funkcia zariadenia na rotačně frézovanie je nasledovná:The function of the rotary milling machine is as follows:

Nástroj, například uhlová fréza sa upne do držiaku nástroja vřetena 1. Po uvolnění spevňovacieho zariadenia 2 sa ovládacou hlavou 5 nastaví požadovaná excentricita nástroja a spevňovacie zariadenie 2 sa zaistí. Roztočením motora M2 17 sa pomocou ozubených kolies 16, 14, 13 uvedie vřeteno 1 s nástrojom do rotácie. Motorom Ml 12 pomocou ozubených kolies 10, 11 sa uvedie válcová skriňa 22 do rotačného pohybu smerom do 1'ava alebo do prava podlá volby sposobu frézovania — protisměrného alebo súmerného.A tool, for example an angle milling cutter, is clamped into the tool holder of the spindle 1. After releasing the reinforcing device 2, the desired eccentricity of the tool is set by the control head 5 and the reinforcing device 2 is locked. By rotating the motor M2 17, the tool spindle 1 is rotated by means of gears 16, 14, 13. By means of the gear motor M12, by means of gears 10, 11, the cylindrical housing 22 is rotated to the left or to the right according to the milling method - counter or symmetrical.

Posuvová jednotka 21 rýchloposuvom vpřed a potom pracovným posuvom přiblíží zariadenie na rotačně frézovanie k upnutému. obrobku, až déjde k styku nástroja s obrobkom. Híhka záběru nástroja vřetena 1 sa pracovným posuvom jednotky 21 zvačšuje, až posuvová jednotka 21 dosiahne nastavená polohu. Od tohto okamžiku vykoná válcová skriňa ,22 jednu funkčnú obrátku nastaveným posuvom regulačným motorom Ml 12. Tým je pracovná operácia ukončená a posuvová jednotka 21 s rotačným frézovacím zariadením sa rýchloposuvom spát vráti do základnej polohy.The feed unit 21 moves at rapid traverse and then at work feed to the rotary milling device to be clamped. until the tool comes into contact with the workpiece. The engagement depth of the spindle tool 1 is increased by the working feed of the unit 21 until the feed unit 21 reaches the set position. From this point on, the cylindrical housing 22 performs one functional revolution at the set feed rate of the control motor M1 12. This completes the operation and returns the feed unit 21 with the rotary milling machine to rapid return to its home position.

Zariadenie na rotačně frézovanie podlá vynálezu možno využiť ako stavebnicový prvok jednoúčelových obrábacích strojov pre čelné frézovacie operácie s odvalovaním nástroja po vnútornej alebo vonkajšej valcovej ploché obrobku alebo na iné čelné rotačně operácie.The rotary milling device according to the invention can be used as a modular element of single-purpose machine tools for face milling operations with tool rolling on an inner or outer cylindrical flat workpiece or for other face rotary operations.

Claims (2)

1. Zariadenie na rotačně frézovanie obrobkov z čelnej strany nástrojom, ktorý súčasne s rotáciou okolo vlastnej osi, vykonává pohyb po kruhovej dráhe s prestavitelnou excentricitou, zostavené zo skrine s prevodmi, otočného puzdra s vretenom a dvoch motorov, vyznačené tým, že vřeteno (1) je excentricky uložené vo valcovom otočnom puzdre (6), ktoré je excentricky uložené vo valcovej rotačněj skrini (22), radiálno-axiálne uloženej v ložiskách (3, 9) skrine (8) zariadenia a na vřeteno (1) je napojený pomocou troch ozubených kolies (13, 14, 16) náhonový motor M2 (17), pričom prvé koleso (16) je uložené v ose (19) rotácie valcovej skrine (22i), totožnéj s osou motora M2 (17), druhé koleso (14) v ose válcového puzdra (6) a tretie koleso (13) v ose vřetena (1), zatial' čo válcová skriňa (22), je napojená na motor Ml (12) prostredníctvom ozubených kolies (10, 11), z ktorých prvé koleso (11) je uložené v ose (19) valcovej skrine (22) a druhé koleso (10) v ose motora Ml (12).A device for rotary milling of workpieces from the front side by a tool which, while rotating about its own axis, performs a circular orbit with adjustable eccentricity, consisting of a gearbox, a spindle sleeve and two motors, characterized in that the spindle (1) ) is eccentrically mounted in a cylindrical rotary housing (6), which is eccentrically mounted in a cylindrical rotary housing (22) radially-axially mounted in bearings (3, 9) of the device housing (8) and connected to the spindle (1) by three gears (13, 14, 16) drive motor M2 (17), wherein the first wheel (16) is mounted in the axis (19) of rotation of the cylindrical housing (22i), identical to the motor axis M2 (17), the second wheel (14) in the axis of the cylindrical housing (6) and the third wheel (13) in the axis of the spindle (1), while the cylindrical housing (22) is connected to the motor M1 (12) by gear wheels (10, 11) of which the first wheel (11) is mounted in the axis (19) of the cylindrical housing (22) and a second wheel (10) in the motor axis M1 (12). 2. Zariadenie na rotačně frézovanie podfa bodu 1, vyznačené tým, že válcové puzdro (6) je opatřené na čelnej straně ovládacou hlavou (5) a spevňovacím zariadením (2) nastavenéj excentricity.Rotary milling device according to Claim 1, characterized in that the cylindrical bushing (6) is provided on the front side with an operating head (5) and a setting device (2) of adjusted eccentricity.
CS1006683A 1983-12-28 1983-12-28 Rotary milling equipment CS248462B1 (en)

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CS1006683A CS248462B1 (en) 1983-12-28 1983-12-28 Rotary milling equipment

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CS1006683A CS248462B1 (en) 1983-12-28 1983-12-28 Rotary milling equipment

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