SU16976A1 - Machine for milling sector grooves in several passes - Google Patents

Description

In the proposed machine for milling sectorial grooves, a caliper is used, which is moved to the size of the cutting depth by the guide profile of a stepped template, driven by means of a worm gear from the main drive. The main drive simultaneously acts on the system of levers associated with it, carrying out automatic feeding of workpieces pushed out of the magazine box, to which the patron is alternately pressed, the full spindle receiving together with the workpiece from the same main drive, rotational movement in both directions milling in several passes of a sector groove. Upon completion of milling, the product is freed from the chuck that is pressed against it by means of the aforementioned levers, after which the milling process is automatically resumed.

In FIG. 1 - depicts the proposed machine in section; FIG. 2 is a front view of it; FIG. 3 is a section along its lin1-B / D in FIG. one; FIG. 4-cut it along the line EZH on fi |. 1, fig. 5.5 products of two projections; FIG. 6-section of the automaton along the line EL in FIG. one; FIG. 7-step pattern.

The drive pulley-1 (Fig. 1, 2), mounted on shaft 1, transmits movement using a worm gear 2.3 to shaft 4, which is in its own way through gear 4., 5 drives shaft 6 rigidly fixed on it drums 7 hfig. 1 and 6). Two fist discs 9 and 10 (Fig. 1 and 3) are attached to the butt end of the drum 7, while 8 are attached to the cylindrical surface of the drum two stepped patterns 12 and 12 fixed by bolts 11 (Fig. 1., 6 , 7), acting with their own-mine angle profile finger 13 (Fig. 1), leading caliper 14. In addition, the finger 13 is coupled with the thickened part 15 of the rod 16 connected by the hinge 17 with the lever 19 swiveling on the axis 18, which is also pivotally connected to the other end with a rolling pin 20 on a single spindle 1. 21 This same rolling pin 20 is connected by a rod 22 with a lever 24 on axis 23 with lever 24, which helps w placed inside the finger 25 is engaged with the rack rod 26, bearing on the smooth part of the store 27,28 blank 29 (FIGS. 1 and 5), and at the end of spring stop 30.

Floors shsndel 21 yes one end

equipped with a chuck 31,32, and at the other end

V is its expansion of a sleeve rigidly connected with it, 33 with a friction brake 84 (Fig. 1), on which a worm wheel 85 is mounted with friction, centered with a screw 2 fixed on a roller 36. On this shaft there are two loosely mounted bevel gears 37 and 38, connected to a third gear 39, rigidly seated on a shaft 40, bearing at the other end, another bevel gear 41, which in turn is connected by a bevel gear 42 with a driving shaft G. Between gears 37 and 37 races. A movable coupling 44 is coupled by means of a pull 43. The shaft 36 is coupled to a coupling 43 with two pivoting levers 45 and 46 (Fig.), the lower arms of which are in contact with the surfaces sitting on the shaft 6

(FIGS. 1 and 3) of the cam discs 9 and 10, the latter having cuts, through which are bolts 8 that serve to "fix the desired position of the discs." On the ends of the bearings 47 of the drive shaft 6, the bushings 48 (Fig. 1 and 4) are screwed, which are externally provided with a gear ring, coupled with the spring pin 49 of the lever 50 (Fig. 1-4).

Milling the sec. Of the tori grooves on the above described machine is produced as follows: the drum 7 (shown in Fig. 1), which is driven from the drive pulley 1 (Fig. 1), gives the support 14 a returnable movement by means of stepped patterns 12 and 12 (Fig. 6), resulting in what is rotated from the driving pulley 51, the milling cutter 52 mills - the workpieces correspond a little to each other;

When moving the caliper from the chuck, the rod 16 by means of the lever 24 acts on a pin rod 26, which, shifts, presses the extreme workpiece and the spring stop 30, releasing the workpiece, after which the last

guides the chuck 31 and 32. Almost simultaneously with the feeding of the workpiece, using the same lever 19, the finished product is released (Fig. 5), which, under the action of its own weight, sends a slit to the collective chute (fshch 1 and 3). When the caliper moves in the opposite direction to the chuck, the rolling pin 20, under the action of the spring 53, clamps the workpiece to be machined in the chuck 31- 82, while at this moment the workpiece remaining in the magazine is closed with a spring stop 30.

The rotation of the spindle 21 and the chuck 31-82 with the clamped workpiece is carried out by the medium of the bevel gears 42, 41, 88, 37 and the worm gear 2, 85. Since it is milled, the groove is a sector, the cartridge is turned to the required angle , should turn the same angle in the opposite direction; Such a rotation of the cartridge, which is variable in both directions, is achieved by the fact that the fist discs 9 and 10, sonrikas alternating with the levers 45 and 46, turn the latter and, using the associated pull 48, engage the coupling 44 or with the conical angle 87 or with a bevel gear 38, whereby the clutch position in the coupling state of the line is fixed by a spring stop 54 acting on the lever 55, and the dead gear of the transfer when changing the direction of rotation is eliminated by the friction brake 34, which lies with the stop placed on the spindle 21 of the protrusion 56 (Fig. 1) in the ledge 57 of the frame of the machine.

To install the caliper by hand, turn the lever 50, with the body bearing; 47, the sleeves 48 are screwed in, which, by clamping the ends of the shaft 6, allow the latter to be rotated at a certain angle.

The subject of the patent.

1. A machine for milling sectorial grooves in several passes, characterized by the use of a caliper 14

FIG. 1) moved by the amount of depth-cutting by the action of the guide profile of the stepped template 12 (Fig. 6 and 7) on the drive drum 7, on the support pin 13 of the caliper towards and to 31.32 with the workpiece, driven back by a hollow a spindle 21 connected with a movement direction movement mechanism consisting of —flux 43 (FIGS. 2 and 3), connected to the clutch 44 on the roller 36 and the upper arms of the levers 45.46, the lower arms of which contact the surfaces of the knuckle disks 9, 10, sitting on the hook 6 of the drum 7, in which device in The protrusions of the cam discs are used for sequential switching of the movements of the caliper, with the extreme positions of the transferential rods 43 set by the spring stopper 54.55, and the friction brake 34 (Fig. 1) is used to prevent the mechanism from moving backwards and is activated when the tab 56 rests on the spindle 21 in the ledge 57 of the frame of the machine.

2. In the machine tool described in paragraph 1, a device for feeding workpieces into a cartridge, characterized by the attachment of a driving pin 16,15, connected with a support 14, moved by the last employee,

moving the cutter from the lid under the action of the lever 19 to the corresponding transmission mechanism, -d impact on the spring dog 50 in order to release the next billet and direct it along the groove in the cartridge to the center above the finished product, which, when the clamped billet is clamped and rotated, the cartridge goes under the action of its own weight through the plate in the collective choleo (Fig. 1 and 3) ..

3.B described in paragraph 1, S1nke-device for mounting the caliper, by hand, characterized by jgTO on the ends of the bearings of the shaft 6 of the drum 7 are mounted on the thread of the sleeve 93c with an external gear crown, coupled with the springs of the finger 49 of the lever 50, the rotation of which is used for screwing the sleeve 48 into the bearing body, in order to clamp the ends of the shaft 6 and turn it to the corresponding angle (Fig. 1 and 4).

4.In the machine described in paragraph 1; the use of cam discs 9, 10, characterized in that, in order to change the arc length of the manufactured sector channels, they are provided with cuts through which bolts 8 are passed, which serve to fix the required position of the discs (Fig. 3).

M. L.

, Jt. Pedaledu A. I. Kozina I am 16976

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