SU149994A1 - Lever cut-off - Google Patents

Description

BASIC Auth. St. L 128729 onisan lever clipper, in which the issue of blanks is carried out through the use of force T5 of sheet metal parts, and the lever trimmer returns to its initial position under the influence of a spring.

The present invention automates the feeding of blanks. For this purpose, the lever shut-off device is equipped with two gripping levers mounted on a common rotary shaft, which interacts with limit switches limiting its turn. The shaft is under the influence of a hydraulic (p-nematic) cylinder or load. To hold the workpiece, filed on the line of transporting rollers, a grip is used, which is driven in reciprocating motion by means of a gear-rack mechanism from a hydraulic (pneumatic) cylinder. The grip size is determined by the distance between the limit switches acting on the grip drive, as well as on the drive of its moving jaws. To turn on the hydraulic (pneumatic) cylinder acting on the rotary shaft, an additional limit switch is used, which interacts with one of the shoulders of the axles: an inverse lever, the second arm of which rests on the supplied workpiece.

The drawing shows a diagram of the lever trimmer.

The blanks / are laid on the guides 2 of the magazine and are held by the pick-up arms 3. The machine is machined on the supporting rollers 4 and, as necessary, fed 5 hundred ka along the axis. When the end of the workpiece leaves the lever 6, the latter, under the action of a spring, presses the limit switch 7, which controls the hydraulic cylinder 8. The shaft 9, with the gripping levers 5 fixed on it, iodine

M 149994

the action of the hydraulic cylinder 5 will first turn to the left and then return to its original position. In this case, one workpiece, located on the protrusions 10 of the guides 2, rolls to the ends of the gripping levers 5 and lays on the supporting rollers, and the next workpiece will be lifted to the tips 10. The end switches 11 and 12 serve to adjust the angle of rotation of the shaft 9. During the delivery of the next billet to the rollers 4, the feeding mechanism mounted on the carriage 13 is in the right extreme position. From the command of the switch 12, the hydraulic cylinder 14 by means of the toothed rack 15, gear 16 and the toothed rack P will move the carriage to the left. The extended jaws 18 and J9 extend the end 20 of the blank. From the command of the final switch 21 hydraulic cylinder 22 toothed racks on the jaws and sixes 23 will bring the jaws together, and the hydraulic cylinder M will move the carriage 13 together with the clamped workpiece to the right. The front end of the new blank is pressed against the rear end of the blank between the rollers 5. After the new blank is advanced into the rollers 5, the switch 24 is activated, the moving jaws open and the further movement of the blank is performed by the rollers 5 of the machine. With the same weight 1 and the length of the workpieces, the rotation of the shaft 9 can be carried out by a load 25, returning to the original position by the force of weight being rolled onto the rollers 4 of the workpiece. When the blank is used up, its end leaves the lever 26, after which the next blank is automatically dispensed. The cylinder 8 in this case is used as a damper.

Subject invention

Lever cutter on the bus. St. L 128729, characterized in that, in order to automate the supply of long cylindrical non-rotating billet-type billets and tubes to drive feed rollers, for example, metal-cutting machine tools, the lever shut-off device is provided with two gripping arms rigidly fixed on the common rotary shaft located under the rotary shaft. by the action of a hydraulic (pneumatic) cylinder or load and interacting with the limit switches limiting its rotation, and for gripping the workpiece fed to the line of the transporting rollers, driven through a gear-rack mechanism from a hydraulic (pneumatic) cylinder to a reciprocating movement, the value of which is determined by the placement of limit switches affecting the hydraulic (pneumatic) drive of the gripper and the drive of its movable jaws, and to turn on the hydraulic (pneumatic) cylinder acting on the rotary shaft carrying the gripping levers, an additional limit switch is used, which interacts with one of the arms of the spring-loaded lever, the second shoulder is a cat This is supported by the feed.

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