SU744751A1 - Machine for winding coils - Google Patents

Description

I

The invention relates to process equipment for the manufacture of electric coils and can be used in the electrical, radio, and instrument-making industries.

A machine for manufacturing electric coils is known, comprising a spindle, a kinematically associated spreading machine made in the form of a mandrel with a screw surface mounted parallel to the axis of the spindle, and a drive mechanism 1.

The disadvantage of this machine is the limited range of pitch control, determined by the kinematics of the mechanism.

It is also known to be a folding device to a machine for winding electric coils, comprising a spindle, a drive mechanism and a folding device made in the form of a mandrel with a helical surface and a guide element 2.

However, the known device does not provide good quality manufactured coils.

The aim of the invention is to improve the quality.

The goal is achieved by the fact that the folding device contains two additional mandrels mounted parallel to the spindle axis associated with the drive, and the screw surface of the mandrel is formed by sections of wire placed on it, with one end of which each section is fixed on the mandrel and the other on

10 with an additional mandrel, wherein a guide element, made, for example, in the form of a rolling bearing, is mounted between these portions.

15

FIG. 1 shows the kinematic diagram of the machine; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The proposed machine contains a water spindle 1, on which a winding reel 2 is mounted, and a folding device made in the form of cylindrical mandrels - one winding 3, having a replaceable screw surface, and two smooth - rewinders 4 and 5, fixed on each of them, respectively one ends of the plots

p b and 7 wires using

washers 8 fixed on mandrels 4 and 5. The other ends of sections 6 and 7 are fixed in washers on the winding amendment 3. A guide element 9, made, for example, as a rolling bearing, is mounted between the sections of the screw surface of the mandrel 3 so that it can be moved along its axis. Sections 6 and 7 of the wire have the same transverse size as. the wire going to the coil 2. The folding device is connected to the driving spindle 1, with the gear wheels 10, 11, 12 and 13, 14, which are alternately connected with the help of controlled electromagnetic sleeves 15 and 16. The rewind mandrels 4 and 5 are rotated from winding mandrel 3 | 3 gear wheels 14, 17 and 18 with gear ratio. The guide element 9 leads the wire 19 to the winding coil 2 from the outputting coil 20 through the tensioning device 21.

Before starting work, the machine is prepared for winding. For this, the Hc1 winding mandrel 3 and the mandrel rewinders 4 and 5 wind the sections b and 7 of the wire of the same transverse size as the wire going to the winding product. The length of the winding on the mandrels is selected depending on the length of the winding coils 2. The winding sections are designed with washers 8, which are fixed to the mandrels.

A wire 19 going to the product is pulled along the guide element of the folding element from the sending coil 20 through the tensioning device 21 to the winding coil 2.

The machine works as follows

When the machine is turned on, the drive motor, (to hell, shows no rotation of the spindle 1, with which the gears are rigidly connected

10 and 13. Through gears 10,

11 and 12, the transmission ratio of which is 1, with the electromagnetic clutch 15 turned on and the clutch 16 turned off, the rotation from the spindle is transferred to the winding mandrel 3. The mandrel 3 rotates in the same direction as the spindle. The number of revolutions of the winding mandrel 3 is equal to the number of revolutions of the spindle 1. On the winding mandrel 3

to the left of the guide element 9, winding the wire takes place, and to the right, winding the wire, which ensures the movement of the guide element to the left by the amount of the transverse size of the wire per spindle revolution. In this way, one coil layer is wound.

When switching to the next coil layer winding, the clutch 15 is disconnected, the clutch 16 is turned on and through the gears 13 and 14 with the transfer ratio, the rotation from the spindle is transferred to the winding mandrel 3. The mandrel 3 rotates in the opposite direction and the guide element 9 moves to the right. At the end of the winding of this layer, when switching to the next one, the couplings are switched again, reversal of the winding mandrel 3 and rewind mandrels 4 and 5, etc. is carried out.

The use of this machine will improve the quality of manufactured electric coils.

Claims (2)

1. Gavrilov A.N. and others. Technologists of aviation electrical equipment. 1963, p. 363-364. 2. USSR author's certificate No. 5334798, cl. H 01 F 41/04, 1974. // 7 /, / J (fuel P Bv 21 20 FIG.