SU1731603A1 - Trimming machine - Google Patents

Abstract

The invention relates to engineering production, in particular, can be used for processing the whips of the threshing drum of grain harvesting machines in an automatic line. The purpose of the invention is to increase productivity by increasing the number of products being cut and ensuring an automatic cycle of operation. The cutting machine comprises a carriage 1 with guides 2, a spindle 3 with a cutting wheel 4 installed below the carriage guides, a rail 5, spring-loaded relative to the carriage and equipped with an angled bevel in which a spring-loaded roller 12 is mounted for fixing the rail when the cutting wheel is worn. Table 6 for blanks made multi-track and provided with clamping plates 7 in the form of double-arm levers. 4 il.

Description

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The invention relates to engineering production, in particular, can be used for processing the whips of the threshing drum of grain harvesting machines in an automatic line.

The purpose of the invention is to increase productivity by increasing the number of products being cut and ensuring an automatic cycle of operation.

FIG. 1 shows a cutting machine for simultaneously cutting four blanks, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 and 4 - control hydraulic circuits.

The cutting machine comprises a carriage 1 reciprocating along the guides 2 mounted below the carriage 1 below the guides 2 spindle 3 of the cutting wheel 4 fixing the rail 5 on it to automatically compensate for wheel wear 4. multi-tray table 6 with pressure bars 7 the form of two shoulders to press the blanks to the table 6.

On the carriage 1, an electric motor 8 is mounted, which causes the cutting wheel 4 to rotate. The locking rail 5 with control cams 9 and the angled bevel 10 is spring-loaded with a spring 11. A spring-loaded roller 12 is installed in the angular bevel of the rail 5. The interaction of the angular bevel 10 of the rail 5 with the roller 12 and the guide 13 allows the carriage 1 to stop when it moves back, depending on the wear of the cutting wheel 4, always at a constant distance from the edge of the circle to the blanks. The cams 9 on the rail 5 control the speed of the carriage 1 movement. The clamping bars 7 move while clamping and unclamping the blanks by cylinder 14. At the end of the carriage 1 stroke against the cutting wheel 4, the lever 15 is mounted with a hard metal tip 16 and an induction sensor 17 for interaction with the lever 15. The control equipment is mounted in conjunction with the working body on the frame, except for the electromagnet 18.

Cutting machine works as follows.

When the blanks on the transport device reach the stops, they will command the electric hammer 19 to the cylinder 14 to clamp the blanks with the clamping bars 7. At the moment the blanks are clamped, the support 20 presses the limit switch 21, which gives commands to start the electric motor 8 and through the slide 22 to the cylinder 23 to move the carriage 1, which quickly brings the cutting wheel 4 to the workpieces. how

Only the first cam of the rail 5 will reach the spool 24, the carriage 1 begins to move at working speed, the first cam has passed, the probe of the spool 24 falls into the hollow

between the cams, the carriage 1 idling quickly brings the cutting wheel 4 to the second workpiece. When the spool 24 meets the second cam of the rail 5, the carriage 1 begins to move again at operating speed. With

cutting the sheet in intermittent cams need disappears. It is enough to have one elongated cam. During the cutting process, the diameter of the cut-off wheel 4 is reduced to compensate for this wear

25, mounted on the rail 5, will reach the stop 26 and shift the rail back by the amount of wear of the cutting wheel 4, and the spring-loaded roller 12 will lock it in this position. At this point, the cutting wheel 4

presses the tip of the solid alloy 16 of the lever 15, the second end of which includes an induction sensor 17, giving a command through the electrill 22 to the cylinder 23 to quickly retract the carriage 1 back, where

The limit switch 27 from the rack cam gives the command — to stop the electric motor and, through the electric hammer 19, to the cylinder 14 to unclamp the blanks.

After achieving acceptable wear

the cutting wheel 4, the cam 28 of the guide 13 presses the limit switch 29, which commands the cylinder 22 to the cylinder 23 to return the carriage 1 to the electromagnet 18. The riving roller 12 is loaded by the spring-loaded roller 12, causing the rail 5 to return to its original position under the action of the spring 11,

The limit switch 31 commands the rollers on the transport device to

remove pests from the machine.

Claims (1)

The invention includes a cutting machine containing a carriage mounted on the guides, a table for workpieces, a spindle with an abrasive wheel and an abrasive wheel wear compensation mechanism, including a rail with control cams, mounted on a carriage, characterized in that In order to increase productivity, the spindle is installed below the carriage guides, and the rail is connected to the carriage inserted into the machine by a spring, while the rail has an angled bevel in which a spring-loaded roller inserted into the machine is installed to fix the rail, while the workpiece table is made with multi-tray and is equipped with clamping plates, made in the form of two shoulders. .2 23 Fig.Z W R nineteen Fig