SU425761A1 - DEVICE FOR DOWNLOADING AND UNLOADING OF PRODUCTS UNDER INTERMEDIARY GRINDING ON CENTER-FREE GRINDING - Google Patents

Description

The invention relates to a machine tool industry and can be used in the bearing industry. According to the main author. St. 138501 a device is known for loading and unloading products during mortise grinding on a centerless grinding machine, containing, its feed and drain, trays, pusher and reciprocating stirring: drive from a drive, covering the supporting knife and serving to transfer the workpiece with loading positions - unloading to the grinding position and reverse transfer of the processed product located below its level. However, such a device loads only one roller into the grinding zone, thereby reducing the productivity of a centerless grinding machine. The purpose of the invention is to increase the productivity of the device by increasing the working positions on the centerless grinding machine. This goal is achieved by the fact that the device is equipped with an additional fork interlocked with the first one by installing both forks on a common rocker arm and being output at the end of each working cycle to the level of the outlet tray in which the corresponding cuts are made. FIG. 1 shows the device in section; in fig. 2 shows a section along A-A in FIG. one; in fig. 3 shows a section along B - B in FIG. 1. On the bridge of the centerless grinding machine, a support 1 body is fixed on which the discharge tray 2 and the knives 3 housing are mounted. The discharge tray 2 has cuts into which the prismatic forks 4 close at the end of each working cycle cuts and form with its working surface part of the working surface of the discharge tray. On the rack 5 are fixed pneumatic cylinders 6, 7, 8, feed trays 9 and supports 10. In bearings 10, a shaft 11 is mounted on bearings, on which pocket disks 12 are mounted, driven by a rack pair 13,14. On the knife body 3, stops 15 are mounted, to which the guide sleeves 16 are attached. The sleeves 16 connect the loading / unloading zone with the grinding zone and provide the predetermined position of the products on the forks 4 moving inside the yoke. The forks 4 are interlocked with each other by means of a common rocker arm 17 connected to the rod 18 of the cylinder 7. The supporting knives 3 are adjustable in height. For ease of setup, the stand 5 can be moved along the bridge of the machine along the guide 19, freeing the grinding zone.

The blanks are loaded in the orienting position into the feed trays 9, from where they are fed with pocket disks 12 pa forks 4, outputted in the finer of each working cycle to the level of the outlet tray 2. After that, the forks with blanks are lowered below the grinding position and the blanks are placed on the supporting knife 3 and are pressed by the drive wheel to the stops 15. At the same time, the grinding wheel is supplied and the workpieces are ground. The machined workpieces are lifted from the knife with forks 4 to the level of the discharge chute 2 and collide with the pusher 20 on the discharge chute 2, while the grinding wheel is drawn off.

The movement of the forks 4, the pusher 20 and the pocket disks 12 is carried out by means of pneumatic actuators 6, 7, 8, controlled by the distribution luchlpism of the machine.

Subject invention

Device for loading and unloading products with mortise grinding on a centerless grinding machine according to ed. St. 138501,

characterized in that, in order to increase productivity by increasing the working positions, it is equipped with an additional fork interlocked with the first one by installing both forks on a common rocker arm

and output at the end of each operating cycle at the level of the discharge tray in which the corresponding cuts are made.

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