SU1155416A2 - Apparatus for automatic changing of working wheels in abrasive cutting-off machine - Google Patents

Abstract

DEVICE FOR AUTOMATIC REPLACEMENT OF WORKING DISCS ON THE ABRASIVE CUTTING MACHINE on the aut. St. 755499, characterized in that, in order to increase the reliability of operation, the stop is made in the form of spring-loaded housings with rollers installed in the base plate with the possibility of axial movement.

Description

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The invention relates to a machine tool industry, in particular to devices for automatic tool change. According to the main author. St. No. 755499 discloses a device for automatically replacing working discs on an abrasive cutting machine, comprising a magazine with a base plate and an emphasis limiting the movement of a disk pack mounted on a mandrel, and a disk gripping device made in the form of a spring-loaded mandrel movable in the direction of the magazine mandrel and spindle machine, and in the base plate opposite the mandrel of the store is made a groove open in the direction of the intersection, device 1. However, in the known device, the stop and the mandrel of the store do not ensure the preservation of the constant position of the center of the disk when working with disks having different types of memory. The purpose of the invention is to increase the reliability of operation by maintaining a constant position of the center of the disk, converging from the mandrel in the direction of the magazine stop. The goal is achieved by the fact that in a device containing a magazine with a base plate and an emphasis limiting the movement of a disk pack installed on the mandrel, and a disk gripping device made in the form of a spring-loaded mandrel with the ability to move in the direction of the mandrel of the store and the machine tool, and in the cucumber plate opposite the store mandrel, a groove is made open in the direction of movement of the device, the stop is made in the form of spring-loaded housings with rollers mounted in the base plate with the possibility of new axial movement. FIG. 1 shows a device, a plan view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. 3; in fig. 5 - section G of G in FIG. 1. The device comprises a magazine 1 consisting of a base 2, on the horizontal plane of which a support plate 3 with bodies 4 located therein, a stopper 5 protecting the body 4 from being turned, nuts 6 intended for adjusting the size (S + 0, 7) + 1 ..., 5 mm, the roller 7, freely rotating on the axis 8, and the fuzines 9. The working disks 10 pressed onto the mandrel 11 are pressed against the rollers 7. A distance equal to the maximum thickness of the working disk, i.e. B + 0.7, plus a guaranteed clearance of 1 ... 1.5 mm. A hydraulic cylinder 12 with a brush 13 and a fork 14 is fixed on the base stand 2 (fig. 3). The fixture 15 (fig. 1) with a gripper for transferring the working disk 10 consists of a bracket 16, on a vertical one. 62, the cylinder of which is fixed by a cylinder 7, is connected with a slide 19 by its rod 18. In the support plate 3 (Fig. 3), a groove is opened opposite the mandrel 11, open in the direction of movement of the device 5 (Fig. 1). A slider 19, rigidly connected with the rolling pins 20, moves along the guides of the bracket 16 from the hydraulic cylinder 17. In the patch 19, the mandrel 21 is positioned 1a, the landing diameter of which is adjusted to a size of -8-0.7 mm, which is pressed to the flange 23 by the spring 22, fixed to the crawler 19 with the help of pins 24. The device 15 is mounted on the crawler 25 so that the axis of the mandrel 21 of the device 15 coincides with the axis of the mandrel 11 of the magazine 1. The device 15 with the crawler 25 moves the hydraulic cylinder 26 along the guide 27 to the spindle 28 of the machine . The device works as follows. The working disks 10, worn on the mandrel 11, are pressed against the end face of the fork 14 with the roller 7. From the action of the hydraulic cylinder 12 (Fig. 3), the brush 13 moves the fork 14 with the working disks 10 towards the base plate 3, lowering the body 4, compressing the spring 9. The movement of the working disks 10 along the mandrel 11 takes place until the ends of the nuts 6 are pressed into the base plate 3 and removed. My working disk 10 does not take the position of its unloading from the magazine 1. To transfer the working disk 10 from the shop 1 crawler 19 of tool 15 with rolling pins 20 along the guides of the bracket 16 trans. another with the hydraulic rod 18 of the hydraulic cylinder 17 in the direction of the shop 1 and, the passage through the groove of the base plate 3, the spring-loaded mandrel 21 with a departure in size B-0.7. mm with its mounting diameter enters the hole of the removable working disk 10. After the mandrel 21 will enter the hole of the working disk 10, the hydraulic cylinder 26 moves along the guides 27 to the slider 25 together with the fixture 15 fixed on it, removing the working disk 10 from the magazine 1 and moves it until the axis of the mandrel 21 is aligned with the axis machine tool 28, tool 15 stops. From the action of the hydraulic cylinder 17, the mandrel 21 with the working disk 10 moves all the way to the end of the shpindle 28 and puts the working disk 10 on the spindle 28 of the machine. After that, the working disk 10 is put on the spindle 28 of the machine and the tool 15 from the action of two hydraulic cylinders 17 and 26 moves to its original position. The use of the invention makes it possible to increase the reliability of operation of the device by maintaining a constant position of the center of the working disks while varying their thickness.

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Claims (1)

DEVICE FOR AUTOMATIC REPLACEMENT OF WORKING DISKS ON THE ABRASIVE CUTTING MACHINE by ed. St. No. 755499, characterized in that, in order to increase reliability, the emphasis is made in the form of spring-loaded housings with rollers installed in the base plate with the possibility of axial movement.