SU379339A1 - .LA ^% "* H? ^% ^! 4 ^> & ^% 3 / 9339M. Cl. 23d45 / 00UDC 621.934.321 (088.8) Authors of the invention L. L. Yagdzhiev, V.I. Kislenko, I. I. Shulga, V. F. Tarasenko, V. G. Chekesov, A. T. Varivoda, P. A. Makukhin, V. A. Nikulchenko A. V. Migdeev - Google Patents

Description

one

The invention relates to metal working may be used for cutting pieces.

Known machines for cutting the workpieces are provided with mounting on a hundred or more circular saw with a drive, a clamping mechanism, and a folding stop for: limiting the length of the cut: blank.

In order to improve the quality of the sections of the rotating workpiece, four support rollers are installed on the machine bed, two pairs of saw blades are arranged in pairs, with a pair of coaxial rollers being kinematically connected with each other.

FIG. 1 shows the proposed machine, front view; in fig. 2 is a view along arrow A of FIG. one; in fig. 3 - support rollers; n: and fig. 4 is a section along BB in FIG. 3

On a bed / smoBtirovan saw 2 with the drive. The saw has the possibility of lateral movement when cutting the workpiece 3.

On both sides of the circular saw in the cutting zone on the bed frame four support rollers 4 are installed in pairs (see Fig. 3). When cut, the workpiece is pressed against the support rollers by two pressure rollers 5, which are fixed in the housing 6 connected to the work clamping mechanism 7. A support plate 9 is mounted on the stand 8 of the pressing mechanism, on which the cutter 10 is fixed for chamfering.

The cutting machine is also equipped with a spindle head //, which is designed to rotate the workpiece during cutting and is installed on the guides 12. The spindle head is connected to the longitudinal movement mechanism of the workpiece 13. Coaxial rollers 4 (see Fig. 4, section BB)

kinematically connected to each other. On the frame, the rate is mounted with a folding stop M for limiting the length of the cut piece. Cutting machine works as follows.

The workpiece 3 is secured in the spindle headstock // and the other end is laid on the support rollers 4. The length of the cut workpiece is determined by the folding stop 14.

With the clamping mechanism 7, the pinch rollers a move down and clamp the workpiece. Then the spindle stock // starts to rotate the workpiece, and saw 2 cuts it. The support 9 is shuffled, the cutter 10 is set, and the radius chamfer begins to sharpen on the workpiece.

When cutting round billets with a small diameter of 30-40 mm, it is possible that the workpiece will be cut earlier with a saw than will be chamfered with a chisel. For

chamfering is necessary to cut

part of the workpiece rotated. The cut-off part of the workpiece will be rotated by the spindle head 11 through the rollers which are kinematically connected to each other.

For sections of the new part of the workpiece, it is necessary to discard the folding stop 14, remove the cut off workpiece, install the drop hanger, and move the sliding head to the sliding carriage mechanism.

The cycle is repeated. The movement of the saw, cutter and other components is carried out in the automatic cycle by the hydraulic system (not shown 1a in the drawing).

Subject invention

A cutting machine equipped with a saw-mounted circular saw with a drive, a mechanism for clamping the workpiece and a folding stop for limiting the length of the cut-off workpiece, characterized in that, to improve the quality of the workpiece pieces, four support rollers are located on the machine bed on both sides of the saw blade, with a pair of rollers aligned and kinematically connected to each other.

In id

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