CS220901B1

CS220901B1 - Device for positioning circular workpieces

Info

Publication number: CS220901B1
Application number: CS760480A
Authority: CS
Inventors: Florian Pniacek
Original assignee: Florian Pniacek
Priority date: 1980-11-11
Filing date: 1980-11-11
Publication date: 1983-04-29

Abstract

Vynález rieši zariadenie pre zaistenie presnej polohy kruhových obrobkov před vložením a upnutím do obrábacieho stroja. Podstata vynálezu spočívá v tom, že palce (1, 2), hranolovitého tvaru, sú upevněné na uhlových pákách (7, 8) uložených otočné prostredníctvom čapu (9) na žlabovom zásobníku (4) a opatřených dorazmi (10, 11), pričom s konzolou (18) sú páky (7, 8) spojené pružinami (14, 15) a na manipulačnom zariadení (5) je upevněná vačka (6) a plochá vačka (13), ktorá je v styku s kladkou (12) uloženou na konci páky (7).The invention provides a device for ensuring the precise position of circular workpieces before insertion and clamping into a machine tool. The essence of the invention lies in the fact that the thumbs (1, 2), of prismatic shape, are mounted on angular levers (7, 8) rotatably mounted by means of a pin (9) on the trough magazine (4) and provided with stops (10, 11), while the levers (7, 8) are connected to the console (18) by springs (14, 15) and a cam (6) and a flat cam (13) are mounted on the handling device (5), which is in contact with a pulley (12) mounted at the end of the lever (7).

Description

The invention provides a device for providing a precise position of the circular workpieces prior to insertion and clamping into the machine tool.

The essence of the invention is that the fingers (1, 2) of the prismatic shape are fastened to the angle levers (7, 8) rotatable by means of a pin (9) on the trough magazine (4) and provided with stops (10, 11), with the bracket (18) the levers (7, 8) are connected by springs (14, 15) and a cam (6) and a flat cam (13) fixed on the handling device (5) in contact with the roller (12) mounted on at the end of the lever (7).

220901 3

The invention provides a device for securing circular workpieces which is suitable for machines operating with automatic loading of workpieces, in which it is necessary to provide a precise position before being placed and clamped into the machine.

One of the limiting assumptions for the operation of machines working with automatic loading of workpieces from the magazine into the machine is to ensure the exact position of the workpiece relative to the machine handling device. If the position is not unambiguous, the workpiece is clamped incorrectly and the machine crashes.

The aforementioned drawback removes the positioning device of the circular workpieces, the principle being that the two inches of the prismatic shape are mounted on angular levers which are pivoted by a pin on the trough magazine. Both angular levers are provided with stops and are connected to the bracket via springs. Whereby a cam and a flat cam that is in contact with the pulley mounted at the end of the lever are mounted on the handling device. Advantages of the positioning device of the circular workpieces according to the invention are that the device eliminates the possibility of a failure, an accident occurs when the workpiece is trapped incorrectly in the jaws of the feeding device and moves to the machine clamping device. An example of a solution for a circular positioning device is shown in the accompanying drawings, wherein FIG. 1 is a front view and FIG. 2 is a rear view.

The workpiece positioning device comprises two inches 1, 2, 220901 which determine the correct position of the workpiece 3, which is moved from the trough magazine 4 by the handling device 5 to the clamping location on the machine.

The thumb 1 is fixedly coupled to a lever 7 pivotally mounted on a pin 9, which is held in the correct position by the adjusting stop 10. The thumb 2 is fixedly coupled to a lever 8 rotatably mounted on a pin 9, which is held in the correct position by the adjusting stop 11. Lever 7 is terminated by a pulley 12 which monitors the shape of the flat cam 13 fixedly connected to the body of the handling device 5 into which it is tightened by the spring 14. Also, the lever 8 is pulled into the working position by the spring 15. When the handling device 5 moves downwards the holders 16 by means of conical plates 17, the ring 3 is moved towards the clamping device, with the spring 2 springing and returning by means of spring 15 to the original position after the ring 3 has passed. The flat cam 13 presses the pulley 12 and tumbles the thumb 1 through the lever 7 to the lower position, thereby releasing the path for the additional ring to be fed. The cam 6, along with the handling device 5, moves downwards and moves the other ring to the specified position with the right side and retains the rings, moreover, with the lava side. The ring 3 takes the clamp and the handling device 5 returns to the upper position, the flat cam 13 via the pulley 12 and the lever 7 moves the thumb 1 to the right and this pushes the ring 3 exactly to the set position.

The present invention can be advantageously used in automatic machines that convert circular workpieces.

Claims

OBJECT A device for securing the position of circular workpieces consisting of a holding and control part, characterized in that the fingers (1, 2) of the prismatic shape are mounted on angular levers (7, 8) pivoted by a pin (9) on the trough of the magazine ( 4) and provided with stops (10, 11), the levers (7, 8) connected to the bracket (18) by springs (14, 15), and a cam (6) and a flat cam (13) are mounted on the handling device (5) which is in contact with a roller (12) located at the end of the lever (7).

2 sheets of drawings 228901

FIG. 1 4- 220901

* «V« re <ntla, a. F., Xárod 7, Uoat Ctaa 2,40 Xía