SU1255254A1 - Charging device for thread-rolling machine - Google Patents

Description

The invention relates to mechanical engineering and can be used in the automation of threading machine tools.

The aim of the invention is to increase the reliability of the device.

The drawing shows the npe yiarae device, general view.

The loading device contains a mechanism for supplying blanks from the bunker to the machining zone. The feeder consists of a slide 1, a housing 2 in the form of a guide prism, a stopper 3 with a spring 4, a screw 5 of the stop, a support bar 6, the Slider has a receiving window 7 for gripping a workpiece with a size equal to the diameter of the workpiece + 0.5 mm.

In the slider, the flag is set to 8,

An inlet pipe 9 of the injector type O with channels, the diameter of which is equal to the diameter of the workpiece +1, 0 mm, is inserted into the hole of the vertical wall of the building 2. The shevmo-actuator is connected with the slider by a rod 11 by means of a stopper 3 and an annular groove 12 on the rod under the stopper.

The actuator consists of a single-acting pneumatic cylinder 13 connected by an air duct 14 to a slide valve 15.

The pneumatic cylinder has a pinhole 16, mounted on the stem P, a shank 17

spring 18 on the shank.

The shank is screwed onto the threaded portion of the stem, presses the piston 16 and constitutes a single moving link.

On the shank there is a groove 19 for free entry-exit of atmospheric air from the left cavity of the cylinder during operation. The tension of the spring 18 is adjusted by a plug 20. In the cavity of the spool 15, a guide sleeve 21 is installed with a plunger 22, which receives a reciprocating motion from one side of the spring 23, and from the other side from the rocker arm 24 through adjustment screws 25. The yoke receives an oscillatory movement from the spring 23 through the plunger 22 on the one hand and from the rod 26 connected to the billet 27 of the workpiece to the rolling zone on the other side. The plunger 22 has an annular recess 28 for the passage of air from the network to the right

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the cavity of the working pneumatic cylinder 13, the groove 29 for venting air from the right cavity of the pneumatic cylinder to the atmosphere through the groove 30 on the shank of the plunger,

5 and also a groove 31 under the key for orienting the plunger with a groove 29 relative inlet 32 and outlet 33 of the valve spool 15.

The device works as follows.

in a way.

With the withdrawal of the pusher 27 in the leftmost position (FIG.) The position of the rod 26, I will act on the shoulder of the rocker arm, gives it to the other shoulder

15 a plunger 22 of the spool 15 until the annular recess 28 of the plunger is aligned with the inlet 32 and the outlet 33 of the pneumatic system.

So compressed air from

30 the network freely through the air duct 14 enters the right cavity of the pneumatic cylinder 13, pushes the piston 16 to the left together with the rod 11 and the slider 1, aligning the receiving window 7 with the supporting tube 9 of the feeder 10,

The billet under the air jet of the feeder 10 is fed into the treatment area up to the limiting abutment 34 and is positioned between the orienting tab 35 and the end of the pusher 27. When the billet is pushed, the rod 26 moves forward together with the pusher, and the plunger 22 of the spool 15 under the action of spring 23 moves to the left position, closing the hole 32, and the hole 33 is aligned with the groove 29. Thus, the right cavity of the pneumatic cylinder through the air duct 14, the hole 33, the grooves 29 and 30 is connected with the atmosphere and the piston 16 is moved forward by the action of the spring 18, thereby combining the grip window 7 with the guide chute 36 of the vibrating hopper. At the same time, the next billet, when combined with window 7, enters it under the influence of the operation of the bunker. For reliable operation of the feeder, it is necessary to debug it in advance, which consists in the following. The receiving slot 7 of the slider should be centered with the guide lot of the vibration bin 36 and set with the leading edge of the slide from the cut 55 of the dot of the I value (0.5 x -2), which ensures the removal of short pieces according to the principle of difference of the centers of gravity.

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The billet from the hopper along the tray 36 enters the hole of the ram, set by the rear end from the cut of the tray by 4 mm. The next workpiece, which is transferred first to the feed tube, rests on the upper surface of the slider, slides along it and enters the receiving window when the slider returns to its initial position. Then the cycle repeats.

. In case of a failure in the feed of the bunker, a situation is possible in which the slider begins to move when the front wheel

The blank part will be in the window, and the rear part will be in the bin tray. In this case, the locking will work, in which the rod 11, having overcome the force of the stopper 3, will come out of engagement with it, will freely move back with the piston, but will not exit from the front end of the hole in the slider under the rod. When the piston moves forward with the rod, the rod-stop connection is restored by means of the stop screw 5. The jamming signal in the work feed circuit is stopped by the checkbox installed on the slider.

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VIIIPI Order 4748/10.

Random polygons pr-tie, Uzhgorod, st. Project, 4

Circulation 655 Subscription

Claims (1)

LOADING DEVICE TO THREADING MACHINE containing a hopper for blanks and a feed mechanism, characterized in that, in order to increase its reliability in operation, the feed mechanism is made in the form of a slider with a receiving window, pneumatic drive of its reciprocating movement, injector type feeder for receiving the workpiece from the receiving window slide and transfer to the processing zone, filling the workpiece into the processing zone associated with the pneumatic drive of the slider through the pneumatic system.