SU1423305A1 - Shears for cutting rolled stock - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to the cutting of rolled products. The goal is to simplify the design and increase reliability. Under the action of the drive, the drive slider 6 moves downwards, which causes the intermediate element 7 to move along the support surface of the holder 4 along the rod axis, and this, in turn, causes the frame 2 to move upwards until the rod is clamped between the new 5 and clamp 9. Under the action of the reaction force of the bar, the knife holder moves downwards, which causes the intermediate element to move relative to the knife holder along the rod axis, and this, in turn, causes the frame to move before clamping the rod between the knife and the clamp. After the end of the cutting process, the clamping mechanisms return to the starting position, limited by stops, under the action of the actuator and spring. 8 il. (L

Description

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The invention relates to the processing of metals by pressure, in particular to the cutting of rolled products.

The aim of the invention is to simplify the construction and increase the reliability of the scissors.

Figure 1 schematically shows the scissors from the side of the mechanism of the clip cut off the workpiece; FIG. 2 is a section A-A in FIG. on fig.Z - section bb in figure 1; 4 shows scissors from the side of the rolling clamp mechanism; on fig.Z - section bb In figure 4; figure 6 - section GG in Fig, 4; Fig. 7 shows an intermediate element of the mechanism for clamping the cut-off workpiece (where D is the inclined plane of interaction with the PShzun and E is the inclined plane of interaction with the creeper); Fig. 8 shows an intermediate element of the rolling clamp mechanism (where W is the inclined plane of interaction with the frame, 3 is the inclined plane of interaction with the slide).

The shears for cutting rolled products contain a clamping mechanism of the cut-off workpiece mounted in the frame 1, containing a frame 2 with a clamp 3, in the guides of which a knife is mounted - a holder 4 with a knife 5. The knife holder is connected to the drive slider 6 by means of an intermediate element 7 made with a flat and three inclined surfaces, adjacent of which have the opposite angle of inclination. The shears also contain a rolling clamping mechanism, embedded in the frames 8 with the clamp 9, mounted in the guide frames 1. In the guide frames 8, the knife holder 1 with the knife 11 is installed. The knife holder 10 is kinematically connected with the frame 8 and with the bed 1 by means of an intermediate element 12, flat with and

three inclined surfaces, adjacent of which have the opposite angle of inclination. Springs 13 and 14 are installed between the frames and holder. On the frame above frames 2 and 8, stops 15 and 16 are installed.

Scissors work as follows.

Under the action of the drive, the drive slider 6 moves downwards, which, when ™ leads to the movement of the intermediate element 7 along the support surface of the holder 4 along the axis of the rod under the action of the reaction forces of the drive and the rod

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ka The movement of the intermediate element 7 leads to the movement of the frame 2 up to clamp the rod between the knife 5 and the clamp 9. Further movement of the drive leads to a piece clamped with a force proportional to the cutting force of the workpiece from the rod.

Under the action of the reaction force of the bar, the knife holder 10 moves downwards, which causes the intermediate element 12 to move relative to the knife holder 10 along the rod axis. Moving the intermediate element 12 causes the frame 8 to move until the rod is clamped between the knife 11 and the clamp 9, At the end of cutting under the action the drive and the springs 13 and 14, the clamping mechanisms return to their original position limited by the lugs 15 and 16.

Claims (1)

Invention Formula Scissors for cutting rolled products containing a frame, mechanisms for clamping the cut-off workpiece and rolled products, each of which is made in the form of a frame with a clamp that is installed with the possibility of movement in the guide frame, a knife holder with a knife and a supporting surface that can be moved in frame guides, and an intermediate element, as well as a drive slider, installed in the frame guides of the mechanism for clamping the cut piece, characterized in that, in order to simplify the design and increase reliability, each of The intermediate elements of the mechanisms for clamping the cut piece and rolled are installed in the corresponding frame with the possibility of counter-reciprocating movement and made with flat and three inclined surfaces, adjacent of which have opposite angle of inclination, the frame of the mechanisms for clamping the cut blank and slide are made with inclined surfaces , the corresponding inclined surfaces of the corresponding intermediate element, and the frame of the rolling clamp mechanism and the bed under this frame are also made with Pull surfaces mating inclined surfaces corresponding intermediate member, wherein the pro 14233054 interstitial elements are installed with responsibly with their spherical surfaces by the ability to interact with their knife holders and inclined surfaces of planar and inclined planes of the frame, ram and bed .g l  Have ////////////// l -J Y / SriGa AT 6 cfjus.3 71 1 0-8 / 7 G - G ery in, 5 tfJu.7 ff cftuff.ff