SU1266717A1 - Device for continuous dressing of grinding wheel - Google Patents

Abstract

The invention makes it possible to shorten the time for readjustment of the device and can be used for continuous straightening of wheels for abrasive machining operations. Continuously straightening the grinding wheel 18 is carried out by the right roller 5. G1, the insertion of the right roller 5 to the plunging occurs by moving the slide 15 with a wedge 9 acting on the roller 8 associated with the lever 1 mounted on the axis 2. For fixing the lever 1 relative to axis 2 in a constant angular position serves magnetic plates 16 and 17. Magnetic plates 11 and 12 allow you to maintain the same position of the roller 8 relative to the wedge 9. Thus, the right roller 5 takes a constant position relative to the axis of the grinding wheel 18. 3 Il. 1

Description

The invention relates to machine tool industry, namely to the processing of parts with an abrasive tool, and can be used for continuous dressing circles on grinding machines.

The aim of the invention is to reduce the time for readjustment when grinding in one batch size of workpieces by maintaining a constant position of the roller relative to the wedge, as well as the lever relative to the axis on which it is installed at the end of the previous and the beginning of the subsequent grinding cycle.

In FIG. 1 shows a device, a General view; in FIG. 2 — section A — A in FIG. 1; in FIG. 3 - section B — B in FIG. 1.

The device comprises a lever 1 mounted on an axis 2 fixed in the hole of the grinding head 3. In the bearings 4 of the lever 1, a steering roller 5 is mounted, driven into rotation through a V-belt drive 6 from an electric motor (not shown). On the axis 7, based in the hole of the lever 1, a roller 8 is installed, intended for contact with the wedge 9, to which two magnetic plates 11 and 12 are fastened with screws 10, covering the lever 1.

The wedge 9 is installed in the guides 13 and is in contact with the magnetic plate 14. The plate 14 and the guides 13 are rigidly connected to each other and to the slide 15 of the machine. In addition, two magnetic plates 16 and 17 are fastened to the lever 1 by screws, covering the axis 2 at its ends.

The device operates as follows.

From the electric motor through the V-belt drive 6, the rotation is transmitted to the ruling roller 5, which carries out the dressing of the grinding wheel 18.

At the beginning of the grinding cycle of the first workpiece, the magnetic plate 14 is turned on, so that the wedge 9 occupies a strictly fixed position relative to this plate, and therefore the slide 15. During the grinding period, the slide 15 with the wedge 9 moves to the right (Fig. I), the wedge acts on the roller 8, and the lever 1 rotates about an axis 2 counterclockwise. Thus, the ruling roller 5 is fed for cutting and the grinding wheel is continuously straightened during the entire grinding cycle of the first workpiece. At the end of the grinding cycle, the magnetic plate 14 is turned off and the plates And and 12 are turned on, as well as 16 and 17.

Magnetic plates 16 and 17 fix the lever 1 relative to the axis 2 in an unchanged angular position, therefore, the axis of the control roller 5 is fixed by the included plates 16 and 17 relative to the axis of the grinding wheel 18.

The included magnetic plates 11 and 12 help to maintain a constant position of the roller 8 relative to the wedge 9.

Then the slide 15 is moved to its original position, and the disabled plate 14 allows them to move relative to a fixed wedge 9.

Thus, the ruling roller occupies an unchanged position relative to the axis of the grinding wheel, and the wedge occupies an unchanged position relative to the lever with the roller mounted on it both at the end of the previous and at the beginning of the next grinding cycle.

After moving the slide 15 to its original position, the magnetic plate 14 is turned on, and the plate 11, 12, 16 and 17 are turned off, the grinding cycle of the next workpiece begins.

The device allows to increase labor productivity by 20-30% by reducing the time for readjustment.

Claims (1)

The invention relates to a machine tool industry, namely, the processing of parts with an abrasive tool, and can be used for continuous straightening of wheels on grinding machines. The aim of the invention is to shorten the time for changeover when grinding to one batch size of the workpieces by maintaining the roller in a fixed position relative to the wedge, as well as a lever relative to the axis on which it is installed at the end of the previous and the beginning of the subsequent grinding cycle. FIG. 1 shows the device, obN1, its form; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 1. The device comprises a lever 1 mounted on an axis 2 fixed in the hole of the grinding head 3. In the supports 4 of the lever 1 a right roller 5 is installed, driven by rotation through a V-belt drive 6 from an electric motor (not shown). An axis 8, which is based in the hole of the lever 1, is equipped with a roller 8 for contact with a wedge 9, to which two magnetic plates 11 and 12 are fastened with screws 10, covering the lever 1. The wedge 9 is installed in the guides 13 and contacts the magnetic plate 14. Plate 14 and guides 13 are rigidly interconnected and with machine skids 15. In addition, two small plates 16 and 17 covering the axis 2 along its ends are fastened to the lever 1 with screws. The device works as follows. From the electric motor, the rotation is transmitted through the V-belt 6 to the right-hand roller 5, which corrects the grinding wheel 18. At the beginning of the grinding cycle of the first workpiece, the magnetic plate 14 is turned on, so that the wedge 9 takes a strictly fixed position relative to this plate, and consequently, the slide 15. During the grinding period, the slide 15 with the wedge 9 is moved to the right (Fig. 1), the wedge acts on the roller 8, and the lever 1 rotates about axis 2 counterclockwise. Thus, the feed roller 5 is fed to the plunging and the grinding wheel is continuously edited during the entire grinding cycle of the first workpiece. At the end of the grinding cycle, the magnetic plate 14 is turned off and the plates 11 and 12 are turned on, as well as 16 and 17. The magnetic plates 16 and 17 fix lever 1 relative to axis 2 in a constant angular position, therefore the axis of the right roller 5 is fixed by the included plates 16 and 17 relative to the grinding wheel axes 18. The included magnetic plates 11 and 12 help maintain the position of the roller 8 relative to the wedge 9. Then, the slide 15 is stirred, returned to its original position, and the disconnected plate 14 allows them to move relative to the fixed wedge 9. So In this way, the right roller takes a fixed position relative to the axis of the grinding wheel, and the wedge has a fixed position relative to the lever with a roller fixed on it both at the end of the previous one and at the beginning of the next grinding cycle. After moving the slide 15 to the initial position, the magnetic plate 14 is turned on, and the plate 11, 12, 16 and 17 are turned off. the next grinding cycle begins. The device allows to increase labor productivity by 20-30% by reducing the time for changeover. Apparatus of the Invention A device for continuous dressing of a grinding wheel, comprising a lever with unequal shoulders, mounted on an axis fixed fixedly with respect to the axis of the grinding wheel, on the smaller arm of which a right-hand roller is installed, and on a larger one - roller intended for contact with a wedge fixed on the skids machine, characterized in that, in order to reduce the time for readjustment, the device is equipped with a magnetic plate, intended for contact with a wedge and two pairs of magnetic plates, one of which is means for fixing the position of the lever relative to the fixed axis and the other - to fix the position of the roller designed for contact with the wedge relative to the wedge. s 5-B / 2 FIG. 2