SU1103986A1 - Device for automatic change of tools on metal-cutting machine - Google Patents

Abstract

DEVICE FOR AUTOMATIC CHANGE OF TOOLS ON THE METAL CUTTING MACHINE containing a rotary tool magazine located on a plate mounted on the upper side of the machine stand inclined to the spindle axis with the possibility of reciprocating movement along the spindle axis, and means for setting the replaceable tool parallel to the spindle axis of the machine and tool overload, made in the form of a two-arm rotary mechanical arm, characterized in that, in order to increase the reliability of operation, it is equipped with but with a slider installed with the possibility of reciprocating movement in guides which are made in the slab, while the tool magazine is located on the slider asymmetrically with the machine spindle axis, and the mechanical arm is installed in radial guides that are made on the lateral along the (L plate surface, facing the spindle.

Description

00 05 The invention relates to a machine tool industry and, in particular, to devices for automatic tool changing on a cutting machine. A device for automatic tool changer on a metal cutting machine is known, comprising a turning tool magazine located on a plate mounted on the upper side of the machine stand at an angle to the spindle axis with the possibility of reciprocating movement along the spindle axis, and means for setting the replaceable tool in parallel spindle axis machine tool overload, made in the form of two-locking rotary mechanical arm Llj. In the known device, the tool magazine is made in the form of two concentrically arranged and rigidly coupled with the other rings, one of which has tool hubs, and a chain mounted on the other side that is interoperable with the rotational drive of the tool magazine. The disadvantages of this design are not high enough reliability due to the presence of a large number of angular displacements and connections between the mechanisms of the tool changer. The purpose of the invention is to increase the reliability of the machine operation of the device. To achieve this goal, a device for automatically changing tools on a cutting machine contains a turning tool magazine located on a plate installed on the upper side of the machine stand obliquely to the spindle axis with the possibility of reciprocating movement along the spindle axis and means for installing a replaceable tool parallel to the axis of the spindle of the machine and tool overload, made in the form of a two-claw rotary mechanical arm, equipped with a slider installed with backward movement in directions that are made in the slab, while the tool magazine is located on a slider asymmetrically with the machine spindle axis, and the mechanical arm is installed in radius guides that are made on the side surface of the plate facing the spindle. FIG. 1 shows the device, a general view; in fig. 2 - view A on phi1. one ; in fig. 3 shows a section BB in FIG. t; in fig. 4 is a section bb of FIG. 3; FIG. 5 is a section on the HGD of FIG. 2; FIG. 6 is a section E — E of FIG. 5, The device consists (see FIG. 1) of the base 1, on which the stand 2 is installed, on the vertical guides 3 of which the spindle head A is installed with the horizontal spindle 5. On the horizontal guides 6 of the base 1 there are slides 7 and a table 8, and on the horizontal guides 9 (see Fig. 2) of the rack 2 there is a plate 10, on the guides 11 of which a slider 12 is mounted, carrying a tool magazine 13 and a fixed disk 14. For moving the plate 10 and the slider 12, rigidly connected to , them, cylinders 15 and 16, the Fixed disk 14 (see fig, 3.) by means of an axis 17 and a flange 18 is rigidly connected with a slider 12, which by means of a lath 19 adjoins the rails 11. On the axis 17 there are supports 20 and 21 on which a magazine 13 with sockets 22 is fixed, and on the hub 23 - a worm gear the wheel 24 of the actuator 25 (see Fig. 4) of the turn magazine 13 with a screw 26 mounted on the supports 27 and 28 in the housing 29; On the plate 10 (see Fig. 5), radial guides 30 are attached, coupled by the rolling supports 31 with radius guides 32, mounted on the housing 33, carrying a mechanical arm 34, moved in radius guides with 35, cylinder 35 is connected with a gear rail 36 and a wheel 37 mounted on an axis 38 rigidly connected to the rod 39, the rod 39 is placed on the supports 40 and 41 in the cup 42, which is mounted in the housing 33 and in the flange 43 on the supports 44 and 45. Pipelines 46 and 47 are mounted on the clamp and spin of the tool in the mechanical arm 34, which are mounted on the rod 39, which is fixed by one of its ends on the axis 38 by means of 2 bushings 48 installed in the lower slider. A pipe 50 is provided to apply pressure to the cylinder 49 (see Fig. 6). The rod 51 of the cylinder 49 is connected to a rack 52, which is installed in the support 53 and is coupled with a gear wheel 54 that serves to turn the cup 42. On the cup 42 Mechanical arm 34 is attached. The device works as follows. When the mechanical arm is located in the Of - Oj position in the initial position of the scientific research institute, finding the necessary tool socket 22 in the magazine 13 is performed by a command from the system of numerical program control (not shown) that sends a signal to the drive 25 of the magazine 13 to turn 24 and 26. Next, the arm 34 is rotated by an angle of rotation (see FIG. 2) from the starting position Oj - O with the help of the cylinder 49 and rack and pinion gear, while the mechanical arm 34 grips the tool in the socket de 22 store 13 and clamps it in it (mechanical hand) pressure in the pipeline 47. Removing the tool from the tool magazine 13 is performed by moving the piston of the cylinder 15 to the right, which is moved in the same direction on the directions 11 and 11 of the slider 12, with the magazine 13 fixed to the HtM rest of the plate 10 and the mechanical arm 34. By applying pressure to the rail 36 of the rod of the cylinder 35, the gear wheel 37 will turn the body 33 in radius of the guides 30 and 32 and the mechanical arm 34 with the tool in the N2-N position, at an angle p in the plane, through the axis of the spindle 5. In About the time the spindle head 4, with the tool fixed in it, with the help of the feed drive (not shown), will move to the change position and stop at the starting point, and the mechanical arm 34 will turn with the help of the cylinder 49 and the gear wheel 37 and the rail 52 at an additional angle OS, and captures the tool in the spindle 5. Then, pressure is applied to the cylinder 16, the piston of which and the plate 10 associated with it moves to the left, this will remove the tool from the spindle 5. Next from the pressure in the cylinder 49 using a gear wheel 54 and slats 52 and the cup 42 associated with it, the mechanical arm 34 will rotate through an angle L2 180. As the cylinder 16 moves, the plate moves to the right in the same direction and the tool is inserted into the cone of the spindle 5, while the mechanical arm 34, from the impact of the piston 51 on the gear wheel 54 and the rail 52, rotates the angle o, the tool will clamp in the spindle 5 and spindle head 4 will move down. Under the action of the cylinder 35 on the gear wheel 37, the mechanical arm 34 with the used tool will rotate at an angle p in the plane passing through the spindle axis and take the position N i - N c of the tool magazine slot. Under pressure in the cylinder 15, it moves on the guides of the slider 12 to the left, ensuring that the tool is installed in the corresponding slot of the tool magazine 13, and then relieves the pressure in the pipelines 46 and 47 to ensure that the tool is pressed in the mechanical arm 34. the pipe 50 of the cylinder 49 rotates the mechanical arm 34 through an angle to its original position. The proposed machine allows to increase the reliability of the design by 12-18% due to the execution on the plate of guides associated with the slide, on which the tool magazine is installed using an axis and by positioning the mechanical arm on the radius guides made on the side, facing to spindle plate surface.

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Claims (1)

A DEVICE FOR AUTOMATIC CHANGE OF TOOLS ON A METAL-CUTTING MACHINE, containing a rotary tool magazine located on a plate mounted on the upper side of the machine rack inclined to the axis of the spindle with the possibility of reciprocating movement along the axis of the spindle, and means for installing a removable tool parallel to the axis of the machine spindle and overload tool, made in the form of a two-gripping rotary mechanical arm, characterized in that, in order to increase the reliability of work, it is equipped with a crawl unit mounted with the possibility of reciprocating movement in the guides that are made in the plate, while the tool magazine is located on the slider asymmetrically to the axis of the spindle of the machine, and the mechanical arm is installed in the radius guides, g which are made on the side surface of the plate facing the spindle.