SU1366270A1 - Arrangement for manufacturing cylindrical parts with tapered ends from wire - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular, to equipment for the manufacture of cylindrical parts from wire, preferably from non-ferrous and precious metals, and allows for increasing reliability and reducing noise. The device includes a housing 1 in which a rotor 3 with a clip 29 integrated into it is installed, a slider 28, a copier 26, a cutting disk 37, a smoothing sleeve 35, a wire feeding mechanism consisting of a rocker arm mounted on an axis with a roller at one end and a fork on the other, a lever mounted on an axis, an adjusting screw, a spring 30, a worm pair, a worm to 15 and a worm wheel, the first 18 and second 22 gears mounted on a worm, the third gear 19, mounted on a rotor, fourth gear 21 installed in bearings on the rotor. 6 Il. (L ts oo o: O5 1C iv1

Description

The invention relates to the processing of metals by pressure, in particular to equipment for the manufacture of cylindrical parts from wire, preferably from non-ferrous and precious metals, and can be used in the electrical industry.

The purpose of the invention is to increase reliability (and noise reduction).

Figure 1 shows the device, a general view; FIG. 2 is a section A-A in FIG. on fig.Z - node I in figure 1 on an enlarged scale; figure 4 is a view along arrow B in figure 1; figure 5 and 6 - sections bb and GG in figure 1.

The device includes a housing 1, in which a rotor 3 is mounted on bearings 2, in the central hole of which on guide bearings 4 a feed rod 5 is installed, the wire feed head 6, consisting of a rocker arm 7, mounted on an axis 8 5 with a roller 9 on one - end, in contact with the cam 10, and the screw 11 at the other end, holding the rectangular upper end of the feed rod 5 from turning and kinematically connected with the pins 12, | fixed to the rod 5. The yoke 7 by the spring 13 is connected to the housing 1, in which, also on the bearings 14, a screw is mounted to 15, at one end of which a pulley 16 is fixed, connected by a belt 17 with an actuator. The first gear 18 (Z) is fixed on the pulley 16 and meshes with the third gear 19 (2 liters) fixed on the rotor 3. On the rotor 3, the fourth gear 21 is mounted on the bearings 20 (Z which is in engagement with the second gear 22 (Z j), mounted on the second end of the worm 15, which is in kinematic communication with the worm gear 23, located on the same shaft 24 with the cam 10. The shaft 24 is mounted on the bearings 25 in the housing 1.

The number of gear teeth 18, 22, 19, 21 (Z- ,, Zj, Zj, Z) and the worm wheel 23 (Z

Ierb) and the number of worm hits 15 (Zygp ,,) are related as follows

wearing;

II

z

Z yepa. koA. Z Cherb.

(one)

This ratio of the number of teeth gears provides one revolution ro

torus 3 around gear 21 in one cycle of operation of the device.

On the fourth gear 21, a copier 26 is attached, in contact with the roller 27 mounted on a slider 28 mounted in the radial groove of the sleeve 29 fixed in the head of the rotor 3. The slider 28 is connected through the return spring 30 to the head of the rotor 3 by means of the fingers 31 and 32.

On the upper side of the slider 28, a flange 33 is attached to the holder 29, and on the lower side - a flange 34, in which the smoothing sleeve 35 is fixed in the central orifice (Fig. 1). It has a transverse groove 36 (FIG. 3). In the groove-36 there is a cutting disk 37 fixed on the axis 38 and mounted in the groove 39, made on the inner side of the flange 34. The axis 38 is mounted on the bearings 40 in the lever 41, so that its upper end is in the slot of the slider 28 (Fig.1 and 3). In the slider 28 is made the window 42 under the rod 5 of the wire feeder (figure 5).

The lever 41 is mounted on an axle 43 fixed in the holder 29, and the lever 41 is spring loaded with a pin 44 mounted at one end on a screw 45 mounted on the rim of the flange 34. The second end of the lever 41 is adapted to cooperate with the adjusting screw 46, designed to adjust the position of the cutting wheel 37 relative to the smoothing sleeve 35 (Fig.6).

The device works in the following way.

After turning on the drive, the pulley 16 spins the screw to 15 and gears 18 and 22 mounted on the screw, in turn, unwinds the third gear 19 with the rotor 3 and the fourth gear 21 with a copier 26. The screw to 15 transmits the rotation of the shaft 24 through the worm wheel 23 .

When the shaft 24 rotates, the cam 10 rotates the beam 7 clockwise (FIG. 4), with the fork II. for the trunnion 12 moves the rod 5 of the wire feeder down (figures 1 and 4). In this case, the wire 6 is also falling down.

Gear ratios of gears 18, 19 and 22, 21 are chosen in such a way that the rotor 3 rotates the overtaking cam 26 (see formula (1)). Wherein

at some point in time, the roller 27 begins to move from the protrusion of the copier 26 to its depression, as a result of which the slider 28 moves under the force of the spring 30 to the axis of the rotor 3 (Figs. 5 and 6). At the same time, the upper end of the axis 38 is released from the supporting platform 47 of the groove of the slide 28 and the lever 41, under the next cycle of operation of the device when the wire 6 is fed, is pushed out of the smoothing sleeve 35.

The proposed device is noiseless in operation, which is achieved by the smooth movement of the cutting disk 37, due to the fact that the cutting force created by the spring 44 acting on

By turning spring 44 against Q chug 41 with axis 38 and cutting disk 37,

clockwise (FIG. 6), approaching the cutting disk 37 to the wire 6 located in the smoothing sleeve 35. Moreover, the wire 6 is stationary relative to the rod 5 and the housing 1, and the smoothing sleeve .35 rotates around it (FIG. 1, 5 and 6).

As soon as the cutting disk 37 reaches the wire 6, it presses it against the cyber cutting wire 6 does not change its direction, and also due to the fact that the slider 28 in one cycle of operation of the device makes only one g stroke, and not tens of turns as is the case with the prototype. The latter is achieved due to the fact that the copier 26 is made with one protrusion.

Higher reliability suggested the central wall of the central outgoing device due to more than a mile and a half of the smoothing sleeve 35 and its high durability and wear resistance to run around it. At the same time, the cutting disk 37 with the axis 38 rotates in the bearings 40. The slider 38 moves under the action of the return spring 30 so much that a gap greater than half the diameter of the wire forms between the axis 38 and the supporting platform 47 of the slide.

After the cutting disk 37 under the force of the spring 44 deepens to a certain depth in the wire 6, the spring 13 turns the yoke 7 counterclockwise and the fork 1 behind the trunnion 12 moves the rod 5 upwards (FIG. 4). In this case, the rod 5 slips along the wire 6 - the so-called wire interception occurs. At the moment, the roller 9 is rolling down the lip of the cam 10 onto its trough.

When cutting the wire with a cutting disk 37, at its edges, there are i-beads of the wire material, which are smoothed by the smoothing sleeve 35 after turning the rotor 3 relative to the rod 5 by 180 °. At the time of the final wire cut 6, the lever 41 reaches the adjusting screw 46, thereby preventing the cutting disk 37 from contact with the smoothing sleeve 35. Then the rotor 3 with the slider 28, overtaking the copier 26, comes to a position where roller 27 runs onto a projection on the copier 26. In this case, the supporting pad 47 of the groove of the slider 28 grips the axis 38 by the upper end (FIGS. 1 and 3) and retracts the axis 38 with the cutting disk 37 and the lever. 41 in the starting position. The finished part 48 in the head 41 with the axis 38 and the cutting disk 37,

when cutting the wire 6 does not change its direction, and also due to the fact that the slider 28 in one cycle of operation of the device makes only one working stroke, and not tens of moves, as is the case with the prototype. The latter is achieved due to the fact that the copier 26 is made with one protrusion.

Higher reliability offered

bone roller 27 and copier 26, than the roller-stops and sectors-stops of the prototype, working under considerable dynamic loads, due to frequent reciprocating movements of the slide-punch and high speeds of rotation of the roller-stops. The scarlet dynamic loads on the roller 27 and the copier 26 are caused by a small relative speed of rotation of the rotor 3 with a slider 28 with a roller 27 at the end of the relatively rotating copier 26. The latter is achieved due to the fact that the fourth gear 21 on which the copier 26 is attached is in engagement with the second gear 22, fixed on the worm 15, on which the first gear 18 is attached, which is in engagement with the third gear 19 fixed on the rotor 3, and also due to the fact that the number of gear teeth and the worm gear wheel and in worm and are related by the relation (1).

Claims (1)

Formula inveni.ni A device for manufacturing cylindrical parts with tapered ends made of wire, comprising a housing in which a rotor with a housing mounted on it and a flange attached to its end is mounted on bearings, a slide mounted in the housing connected to a return spring and carrying a roller at the end, a copier, cutting disc mounted on the axle, smoothing the sleeve and the feeder provoF1 g .2 8 VJ5 Fiaz AND ge -five N riel 44 45 ZV 37 U6 FIG. M 34