SU369984A1 - Y ^ 'shit - Google Patents

Description

one

The invention can be used in the field of (machine tool and machine tools), intended for cutting precision blanks at any angle using the method of cold cutting or cutting disks.

Known machines with rotary relative to the positioning of the frame, carrying the column with the saw blade headstock and vice with rotary jaws for clamping the workpiece, in the horizontal plane.

In order to increase the accuracy of the pieces of the workpiece at any angle, increase its IR-and-zVoditelnost and vibration resistance of the machine, it is equipped with a cross bar mounted on the frame with a mechanism for clamping the workpiece in a vertical plane. Each of the vice jaws has an individual rotation drive, and the frame carries the mechanisms for clamping the latter relative to the base.

FIG. 1 - front view of the machine; on fit. 2 - the same plan; in fig. 3 - machine with bed, plan; “A fit. 4 is a section along the line A-A in FIG. one.

The described machine consists of a base fixedly mounted on the foundation}, around which the center (see Fig. 2) the bed 2 is rotated.

A column 3 is fixed on the bed 2, then a vertical direction, which (not shown in the drawing) moves the headstock of the saw disk 4 with the saw disk 5, which cuts the workpiece 6. The vertical clamp of the workpiece 6 produces a clamping mechanism 7 made in the form of a cylinder, and horizontal - rotary jaws S and 5, turning from their drive: motors 10 and // on screw gears 12 and 13 in the bores of the bodies of vice 14 and 15. The latter move along horizontal guides 16 of the bed 2.

The housings 14 and 15 of the horizontal clamping vise are interconnected by a rack-gear-rail gear (not shown), located inside the bed 2 and providing simultaneous retraction and supply.

The rotation of the frame 2 relative to the base / is carried out through the gear 17, the gear / 5 gear and the toothed sector (solar sun) 19 fixed on the base /, with the unclamped mechanisms 20 and 21.

.

Each of the clamping mechanisms is made in the form of a cylinder 22 (see FIG. 4) mounted on the frame 2, the rod-rod 23 of which is the gear-nut 24 in the spuds

25 and 26 of the housing 27 fixed on the bed 2. The nut 24, turning, moves the screw 28 with the cracker 29 fixed on it, interacting with the walls of the circular groove 30, made in the base /. Wherein

screw 28 is kept from twisting

31. Zichlin vertical clamp 7 is installed on the grass & pse 32, mounted on the bed 2.

The described staio-k works as follows. The station is rotated to the required cutting angle, for example, along arrow B (see Fig. 3). For this, the clamping mechanisms 20 and 21 are first unfolded, for which the rod-rod 23 is moved to the right. At the same time, the baja ba: baq 4 is allotted upwards, the cores 14 and 15 of the vices are divorced.

Stania 2 (see Figs. 2 and 3) rotates around the center O, which in plan coincides with the center of symmetry of the saw disk 5 and the center of the sun gear 19. Sponges S and 9 tiOk ovorachivatsya around the centers O and 02, which in olan ts "ai sponges: on projections of vertical planes clamping the workpiece.

The rotation of each of the jaws S and 9 vice in the bores of the respective bodies 14 and 15 comes from the engines 10 and 11 through the gears 12 and 13. The transmission ratio of the kinematic chains of the jaws rotation corresponds to the transfer ratio of the cinematic chain - the frame rotates so that they rotate synchronously -but. Sponges are stowed due to the presence in the kinematic chain of turning of the gubol self-braking crawler pair.

The workpiece is moved a certain amount to the cutting zone.

Under the action of the drive, the housings 14 and 15, moving along the guides 16, approach the center O, and the jaws 9 and S clamp the workpiece in a horizontal plane. From the hydraulic cylinder 7, an additional clamp of the blank 6 is produced from above. The clamping mechanisms 20 and 21 clamp the frame 2 relative to the base 1, which is carried out when the rods 23 are moved to the left (see Fig. 4).

Shta-REY 23 turns gear nut 24, which raises screw 28 with cracker 29 upwards. The rinse 29 is pressed against the side walls of pava 30, made on base 1.

After clamping the workpiece and the bed, a fast approach occurs and the working feed of the headstock of the saw blade 4 with the saw blade 5 (the direction of rotation is indicated by arrow B in Fig. 1). There is a piece of workpiece at a given angle.

Subject invention

Claims (2)

1. A cutting machine with a bed facing the base of the frame carrying the saw blade head column and a rotary jaw vice for clamping the workpiece in a horizontal plane, characterized in that, in order to increase the accuracy of the piece cut at any angle, increase productivity and - vibrostabilities of the machine, it is equipped with a crosshead mounted on the frame with a mechanism for clamping the workpiece in a vertical plane, and - each of the jaws of the vice has an individual drive per-turn ensuring the synchronous rotation of the jaws with the rotation of the frame, which carries the mechanisms for clamping the latter relative to the base. 2. Sta-no-p-1, characterized in that, in order to increase the reliability of locking the rotary jaws of the vice, the last transmission in the kinematic chain, leading to their rotation, is made in the form of a self-braking worm gear pair. 3- The machine according to claim 1, characterized in that the mechanism for clamping the frame relative to the base is made in the form of a cylinder fixed on the frame and through a rack and pinion gear and screw-associated with a cracker, interacting with a circular base groove. 32. nineteen 12. /four YU Phie.g 7J } 6 29 Fig