SU516476A1 - Crankshaft milling machine - Google Patents

Description

The invention can be used with arbitrariness of cars, tractors, D1; green engines and x.shressors for knee machining. HlX 1I :. ...

FromP -; - i.b cbpc: 5 5 ::}, ie cTanKV x} to processing k; -.: ;;;: .. D2u;., 1L E;: ajuaiouiM; viiiCH daskyylsh 1rehst (1) pebnigig. installed in the attendants, montiroe ;;, gh on sticks moving longitudinally along cyaiunfe. ts.gsuiyuy rack with cartridges for fastening G..d: li (cranked),

Such Ie; g; This is the automatization of the processing cycle.

In order to automate the process of processing, the proposed machine is equipped with a mechanism for leveling the feed of the milling cutters, made in the form of a skid, affecting the drive of the rotation of the regulator product, interacting with the cam mounted in the support column coaxially with the product. To secure the product, the machine is equipped with chucks with clamping pads and a crosshead, the carrier head, which interact with the pads of the cartridge.

FIG. 1 shows the proposed machine, front view; in fig. 2 is a view along arrow A in FIG. one; on

FIG. 3 - machine, top view; in fig. 4 is a view along arrow B in FIG. 2; in fig. 5 shows the mechanism for leveling the cut-outs of the milling cutters (5 incision along bb-b in fig. 6); in fig. 6 - disrupted by YY in FIG. five; in fig. 7 clamping chuck, gfodolnom incision.

On frame 1, slides 2 and 3 are mounted, which longitudinally move along it. Milling headstocks 4 and 5 with disc three-sided mills 6 and 7 are mounted on the slides. Milling heads move transversely from hydraulic cylinders 8 and 9 and hydraulic station 10. On the front part of the bed, support legs 11 and 12 with clamping chucks 13 and 14 are installed. supporting stools are located lunettes 15 and loading racks 16 and 17. The crank-and-bolt mechanism 18 is installed on j ..- oBbix walls of the sled. Hydraulic copying device 19, synchronization box 20 are mounted on the side walls of the milling heads. The mechanism 21 aligning the feed of the cutters is installed at the rear end of the slide in the drive box of the crankshaft mechanism. The control unit 22 is exchanged in the right support post 11, and the chip conveyor is mounted on the bed 1. MexaiMSM 21 consists of body 23, stem rod 24, pinion gear 25, speed setting 26, cam 27 and spring 28. The clamping cartridge consists of body 29 , clamping pads 30, the cross member 31 and the heads 32. The machine works as follows. The crankshaft billet is mounted on loading racks 16 and 17 with the help of a truck. When you press an automatic cycle on the control panel 22, the billet in the loading racks is lowered onto the axis of the centers of the supporting racks 11 and 12 and placed on the backs of the crests 15. In this the time from the electric driver is given a command for axial and radial pentrization and clamping of the workpiece in the clamping chucks 13 and 14. By (::: o.-1.; clamping from a similar clamp of the chucks of the cartridges is fed to mahoda on the closure and clamping the upper covers of the lunettes. After this, the team is instructed to turn the crankshaft billet to the position for processing the first extreme crankpieces. When the milling heads come to the first position for processing the first two extreme crankpins, the traveling headstock electric switches (not shown) will stop and the comavda will be fed to their fast cross Placement forward to the workpiece. The income to the workpiece is 2-3 mm, the movement of the headstock from the accelerated stroke will switch to the working feed and from that moment the incision-start mode will begin - crank cutting with a stationary crankshaft. Cutting occurs until the cutters with their cutting edge edge reach the generatrix surface of a given diameter of the cone-shaped necks. As soon as this is accomplished, the operation of the machine from the plunge-in mode to the copying mode is 1 m. the harvesting of the roller shaft will receive a circular vrchsnie, and milling headstock with cutters will follow the transverse movement. Both of these movements will be strictly interconnected, and the circular rotation of the workpiece in this will be the master. With one turn of the workpiece, a pair of extreme miniature throat} cheeks will be fully processed, after which the milling headstock will receive a command for a quick retraction. Having reached a given extreme position, the milling headstock stops and then begins; ix longitudinal movement to the exit to the front end. Simultaneously with this, a quick-fixing of the fast cholepch billet will begin. ; pairs of crank necks. Turning the workpiece | 1 is necessary .- / because each pls: ajaiyi-jHbix of the cheeks is under definition; angle to each other. After) P; to the second position POSITION OF V V Dovorot ;; Ago-10chkhi pool) tlo apa team and; Traversing the milling heads for the workpiece. Further work of the machine during the processing of the second and third pair of coniferous cheeks will be similar as in the processing of the first pair. When the processing of the third pair of cheeks is completed, the milling headstock will automatically retreat, after which they will return to their extreme positions in the longitudinal direction. Simultaneously with these movements, the processed crankshaft will be turned into the loading / unloading, pressing and opening of the covers of the supports, uncoupling the crankshaft in the cartridges and lifting it in the loading racks to remove it from the machine. The mechanism for leveling the feed milling works as follows. When the drive rotates, the cam 27 associated with it will rotate and move the brush 24 rotating the gear 25. The rotor of the speed adjuster 26 will rotate along with the gear. The displacement of the rotor relative to the stator of the adjuster will be changed by means of a voltage transformer (not shown). The converter will change the winding voltage of the drive motor in the rear end, which will change the speed of rotation. Since this speed is a driver for a s. Feed speed of milling cutters, as it changes, the feed speed will change. Clamping chucks work as follows. When supplying / arranging for the workpieces, the oil from the hydraulic drive does not fit the hydraulic cylinder 33 (Fig. 7). At this time, the ngcc and traverse 31 begin to move. Since the crosshead bears the heads 32, they will move when interacting with the shoe. 30, will move them (pads) to the center; and will provide clamp and slenched shaft. centering; GB ;; QJ or-m-14 of the Invention Frozer machine, 1l of processing crankshafts with double-sided three-sided drive,} C: t, aN; 1eprn.a1 in the headstock, mounted on the slide, longitudinally moving i7c stagle. In addition, the support legs with naipoh: ii a,, ..; l fix the product, distinguishing it from the following:;, that. In order to automate the machining process, the machine is equipped with a cutter feed leveling mechanism, implemented as associated with a sled: acting on the rotational drive of the controller product interacting with the cam (1m installed in the support pole coaxially with the product, the cartridges; Equipped with 1 rasslozhetagmi in their housings clamped kolsdkamp and traverse, the carrier head, interact with the pads.

"N xi

Ci

: CQ

 // 1 Vs

.L ixl / I -, 1 i Tr Ir-: -:: .. -.i .- -U L. - - --- r-- - cf // iK: i; -Miiv.V: N: -: xi x4 /;,. v.ai::;...-w: it sss4: Tis: us: i F v iVT 1 -. ;; Ghchh; r1;:: - g AND-gSN / g V 4-iK-.i .- - .; .. H-p r --- i, c., I kio 43 Ij - / K - --- y /