SU1674314A1 - Device for manufacture and dropping of winding in slots of stator of electric machine - Google Patents

Abstract

The invention relates to electrical engineering and can be used in process equipment for the production of windings of electrical machines. The purpose of the invention is the expansion of technological capabilities by automating the manufacture and placement of coils, covering two or more teeth of a stator packet. The device contains a cartridge, a rotary ring with mandrels equipped with sliding dogs, an unwinding tension device, a winding head with a spindle. When the device is in operation, the wire is wound on one of the mandrels and transferred by a ring to the coil laying area in the stator package. For this, the mandrel pawns are uncoupled and, at the same time, guides are drawn from both sides to the mandrel, forming a corridor for pushing the coil from the mandrel onto the teeth of the bag with the help of pushrod levers and onto the teeth of the bag using pushrod levers and stripper plates. 8 il.

Description

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The invention relates to manufacturing equipment for the manufacture of electrical machines and can be used in the electrical industry.

The purpose of the invention is the expansion of technological capabilities by laying coils covering different numbers of teeth of a stator package,

FIG. 1 shows a general view of a device for manufacturing and laying a winding; FIG. 2 shows a device with an initial position of a rotary ring; in fig. 3 - the device at the time of the beginning of the removal of the coil; in fig. 4 — device at the time of completion of the removal of the coil; in fig. 5 shows section A-A in FIG. 4 in FIG. 6 is a section BB in FIG. four; in fig. 7 - the device is in the process of winding; in fig. 8-10 is a diagram of a half-turn of a coil.

The device comprises a cartridge 1, in which a stator package 2 is fixed, a rotary ring 3 with mandrels 4, equipped with rotary dogs L, forming a pyramidal body, with a smaller base resting on the ring 3. Ring 3 passes through the hole in the cartridge 1 and the stator bore 2 and fixed rotatably around an axis perpendicular to the axis of the cartridge 1 and the stator 2. The ring has a radial slit that allows the stator 2 package to be installed and removed from the cartridge 1 at the beginning and at the end of the winding of the coil 6. The stop 7 contacts coil doffing with its upper front part. The cartridge provides rotation of the stator package around its axis, coordinated with the movement of the rotary 3, guides 8, located symmetrically on both sides of the mandrel 4, pusher arms 9 and slide O

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pa 10 holding the coils 6 at the moment of rotation of the cartridge 1 with the bag, the stator 2. On the levers 9, vertically mounted stripper plates 11 are in contact with the slot parts of the coil 6. The device has a hook 12 for securing the half-turn of the coil. For supplying the wire, the device is provided with an unwinding-tensioning device 13, a winding head 14 with a spindle 15, a guide roller 16 for winding and arranging turns, and a roller 17 for pulling the wire between the coil b coil groups, the cartridge 1 is cylindrical m protrusion 18 in contact at the time of removal of the coil 6 with its lower frontal part. The pusher arms have stops 19 pushing the coil into the stator slots.

The device works as follows.

The wire coils into the coils and with the necessary tension is fed into the winding head 14, the spindle 15, which winds the coil on one of the mandrels 4 located on the ring directly behind the slot. Then the ring 3 rotates and. when this mandrel 4 comes to the position indicated in FIG. 2 and 3, the pawls 5 are unlocked and, under the action of the pusher arms 9, occupy a horizontal position, freeing the coil 6. At the same time, the guides 8 are led from two points to the mandrel 4, forming vertical corridors with the side surfaces. In coordination with the chuck, the ring 3 and the guides 8, the pusher levers 9 are in contact with the mandrel 4, which contact the stops 19 with the front parts of the coil 6, and at the same time the stripper plates 11 are in contact with the grooves of the coil. After that, pushing the coil 6 in the direction of the slots of the stator packet 2 begins along the formed vertical corridors (Fig. 3). In this case, the coil 6, having a pyramidal shape due to the dogs 5, has a different length of turns, and the last wound coil (larger than the previous ones) is closest to the slots of the stator 2. When the last wound coil abuts the bottom of the grooves of the stator pack 2 (Fig. 4 6) lower coil frontal parts

6 abut against the cylindrical protrusion 18 of the chuck 1, and the upper frontal parts of the coil 6 abut against the suspended abutment 7 (Fig. 5), and under the action of the push arms 9, the formation of the coil 6 around the teeth of the stator package 2 (Fig. 6) is completed. Wound coils 6 are prevented from falling out by gate 10 (Figs. 1, 3). After the last coil 6 is wound from the coil group, roller 17 pulls the wire from it to the first coil 6 of the subsequent coil group. Educated in. As a result, wire loops are cut to obtain phase leads. AT

During the process of coordinated rotation of the split ring 3 and the cartridge with the package, a semi-turn is made on each coil 6 before repressing it into the grooves of the package using the house hook 17. (Fig. 1, 8).

The manufacturing process of the coil is completed when the ring 3 is set to its original position, allowing the coiled stator to be removed and the next stator package to be installed. Then the winding process

repeats.

Claims (1)

Claims An apparatus for manufacturing and laying a winding in the stator slots of an electric machine, comprising: a cartridge for mounting a stator pack, a rotary ring with mandrels and push arms (.) and for transferring the coils to the stator slots, characterized in that, in order to expand the technological possibilities by laying the coils, covering the various teeth of the stator package, it is equipped with guiding elements arranged on both sides of the opraac /, with a gap to accommodate the turns of the coil, an emphasis to eliminate the displacement of the upper frontal portions of the coils, each mandrel is provided with pivoting paws for styling; a coil pivotally mounted on both sides of it, and each lever is toggled. the stripper plates are mounted parallel to the mandrel and are capable of entering the gap, while the cartridge has a cylindrical protrusion for contact with the lower frontal part of the coil, and stops are made on the levers of the pushers that have the possibility of contact with the groove parts of the coil. Fig 2 eight Fig.Z at FIG. four // FIG. five Aa Bb FIG. 6 FIG. 7