SU1738600A2 - Protection device of cutting zone of lathe - Google Patents

Abstract

SUMMARY OF THE INVENTION: The device comprises an articulated lever 1 connected to a movable body of the machine and placed between the cams 3. The cams can be rotated around the axes 4 and placed on the protective screen 5 of the machine. The cams 3 are provided with springs 6 and are covered in the area of their connection with the springs by the collar 7. The collar 7 is restricted from moving along the cams by corresponding stops 8. The movement from the machine body through the lever 1 is transmitted to the screen 5, as a result of which they synchronously move. When the resistance to movement of the screen 5 increases, the lever 1. overcoming the force of the springs 6, disengages from the cams 3. The rolling member of the machine is separated from the protective shield 5. At the same time, the coupled cams 3 are returned to their original position by the action of the collar 7 3 il. А-ЛЫ Ј XI О) with Os о о о Fig. g s s

Description

The invention relates to a machine tool industry, in particular to devices for fencing a cutting area of a lathe, and is an improvement of the invention in accordance with the authors. No. 1454650.

The aim of the invention is to improve the serviceability of the machine.

FIG. 1 shows the proposed device, a side view of FIG. 2, section A - A in FIG. one; in FIG. 3, node I in FIG. one.

The device contains an articulated lever 1 connected to the movable body 2 of the machine and placed between the cams 3, which have the ability to rotate around the axes 4. The cams 3 are placed on the protective screen 5 of the machine, equipped with adjustable extension springs 6 and a yoke 7 relative to each other coverage of the spring arms of the cams, and the clamp itself is restricted from moving along the cams and sliding away from them by corresponding stops 8 (pins, cotter pins and

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The device works as follows.

The movement from the machine body 2 by the lever 1, when interacting with the spring-loaded and partially over-driven cams 3, is transmitted to the protective screen 5, as a result of which the mobile body of the machine and the protective screen 5 perform synchronous movement. With increasing resistance to movement of the protective

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of the screen 5 due to the rollers jamming, shavings on the guides, skewing the screen and so on, lever 1, overcoming the force of the spring 6, rotates the corresponding cam 3 in the direction of travel and comes out of engagement with the cams. Thus, there is a separation of the movable body of the machine with a protective screen 5, which protects the device from damage,

10 In this case, the coupled cams 3 are returned to the initial equilibrium position by the action of the collar 7, maintaining an adjustable clearance B. To reconnect the movable member of the machine with the screen 5

15 it is necessary in a known manner to introduce the lever 1 between the cams 3 before the adjustment is made to fit size B. The collar 7 during the entire operation cycle of the device is restricted from moving along the cams by stops 8. 20 Using the proposed device reduces the required physical effort of the operator and reduces the time for servicing the machine .

Claims (1)

Invention Formula A device for fencing a cutting area of a lathe according to autor. C. No. 1454650, characterized in that, in order to increase the convenience of service, it provided with a yoke covering the shoulders of the cams in the zone of their connection with the springs and limited from moving along the cams. FIG. D ../. ABOUT t Axis sharn / rnooor / aea7 Fi.Z ../. ABOUT