JPH02111245A - Guide for winding machine - Google Patents

Abstract

PURPOSE:To insert side plates into slots at a proper inclination so as not to be brought into contact with a previously wound coil, and to induce electric wires to the bottoms of the slots by rotatably supporting the base sections of the side plates at the positions of intervals larger than the width of the head section of a core tooth and reducing the spaces of the nose sections of the side plates inserted into the slots. CONSTITUTION:A shaft 5 is moved forward and side plates 16, 16 are inserted into slots 3 on both sides of a core tooth 2, a detent piece 14 is engaged with the top section of the core tooth and a guide 11 is locked, and a nozzle arm 7 is turned together with the shaft 5. An electric wire 8 is drawn out by the revolution of a nozzle 9, slipped on the slip inclined face 18 of the side plate 16 from a guide plate 10, guided into the slot from the nose of the side plate and wound on the core tooth 2. Since the side plate 16 is inserted into the slot at an inclination so that a space between the noses of the side plate 16 is reduced, the nose of the side plate is not brought into contact with a coil surface and the electric wire is wound over the overall length of the core tooth 2.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a winding machine that directly winds a coil around a rotor of a rotating electric machine, particularly a small and thin rotor used in OA equipment. Regarding the guide.

[Prior Art] A winding machine for directly winding a winding on the rotor core of an electric motor is proposed in Japanese Patent Publication No. 57-19661, for example, by winding the core teeth around which the coil is wound. A guide called a boat shape is attached to the outside surface, and a nozzle that rotates around the boat shape and supplies the electric wire is provided.The wire led out from the nozzle slides on the sloped surface of the boat shape side and is inserted into the slot. It is like that.

However, as the iron core becomes smaller and the thickness of the core becomes smaller,
Since the boat shape cannot be attached to the core, the core teeth are inserted into the guide, the wire is slid along the inclined surface at the tip of the guide, the guide is moved in the axial direction of the core teeth, and the insertion position is shifted while winding the coil. I'm trying to get them to dress up.

Such an apparatus will be described with reference to the apparatus shown in FIGS. 3 to 5.

1 is a rotor core forming core teeth 2 and slots 3. Reference numeral 4 denotes a guide, which is attached to the tip of the rotating shaft 5 via a bearing 6 and has an upper plate 41 and a lower plate 42 into which the iron core teeth 2 are inserted. An inclined surface is configured to allow the object to slide in the direction of. 43 is a detent piece slidably inserted between the upper plate and the lower plate and pressed against the top of the iron core teeth by a spring 44 to prevent rotation of the guide;
45 is a side plate, 7 is a nozzle arm attached to the rotating shaft 5, and the electric wire 8 supplied through the rotating shaft 5 is led out from the nozzle 9. Reference numeral 10 is a temporary kite for guiding the electric wire led out from the nozzle 9 into a predetermined slot 3 and preventing the electric wire from entering other slots, and is attached to a core support (not shown).

When the rotating shaft 5 is advanced and the core teeth 2 of the guide 4 are inserted between the upper plate 41 and the lower plate 42, the guide tip is inserted to the bottom of the slot 3 and the rotating shaft 5 is rotated, the guide 4
The anti-rotation piece 43 engages with the iron core to prevent rotation, and the nozzle arm 7 rotates around the guide 4, for example, in the direction of the arrow in FIG. 4. Since the end of the electric wire 8 led out from the nozzle 9 is fixed in advance, the electric wire led out from the nozzle 9 by rotation slides on the guide plate 10J and is guided to the inclined surface of the guide 4, and the inclined end is It slides toward the iron core tooth 2 and is wound around the iron core tooth 2. The winding position is adjusted by moving the rotary shaft 5 backward while rotating it, and by repeating the forward and backward movement, the required number of turns is wound in layers. 20 is a previously wound coil.

[Problems to be Solved by the Present Invention] However, the width of the tip of the guide 4 is larger than the width of the head of the core tooth in order to insert the core tooth 2 into the slot of the rotor core 1. 3 has a narrow bottom, so when the guide 4 is inserted into the slot where the coil 20 is already wound around one iron core i4f, the tip of the guide 4 hits the previously wound coil, as shown in Figure 3. It becomes impossible to insert the wire at the bottom of the slot, the winding of the wire at the bottom of the slot becomes unstable and tight winding becomes impossible, and the space factor of the coil decreases. be.

[Means for Solving the Problems] The present invention allows the wires to be guided by the side plates provided on both sides of the guide without guiding the wires by the sloped surfaces of the upper and lower plates of the guide. The parts are rotatably supported at intervals wider than the width of the heads of the iron core teeth, and inserted into the slots (also configured so that the intervals between the tips of the side plates are small).

1 Effect] Therefore, the wire can be inserted into the slot at an appropriate slope f6 so as not to contact the side plate guiding the wire into the slot or the previously wound coil, and the wire can be guided to the slot bottom il<. .

[Embodiment] The embodiment shown in FIGS. 1 and 2 will now be explained.

The same reference numerals as those in FIGS. 3 to 5 indicate the same parts.

The guide 11 is provided with a rotating piece 1.1 between a temporary 12 and a lower plate 13 so as to be slidable by a spring 15.

Reference numerals 16 and 16 designate side plates on both sides of the guide, and the base portions of the side plates 16 [6 are rotatably attached to hinge pins 17 at intervals wider than the heads of the core teeth 2.

Reference numeral 18 indicates a sliding slope of the side plates 16, and reference numeral 19 indicates a tension spring stretched between the side plates. The rotating shaft 5 is advanced, the side plates 16 and 16 are inserted into the slots 3 on both sides of the core teeth 2, and the anti-rotation pieces I4 are engaged with the tops of the core teeth to prevent the kite 11 from rotating. At the same time, the nozzle arm 7 is rotated. As the nozzle 9 rotates, the electric wire 8 to which one end is fixed in advance is drawn out, and the wire 8 is pulled out from the guide plate 1O to the side plate 1.
It slides on the sliding slope 18 of No. 6, is guided into the slot from the tip of the side plate, and is wound around the iron core teeth 2. However, the side plate 16
is inserted into the slot at an angle of inclination so that the distance between the tips is small, so when the coil 20 is wound around the core teeth that make one conduction contact, the tips of the side plates do not touch the coil surface, and the core teeth Winding can be carried out over the entire length of 2.

The distance between the second temporary 12 and the lower plate 13 can be made larger than the size of the coil 20 so that they do not come into contact with the coil, and the anti-rotation piece 14 can be made approximately equal to the width of the head of the iron core tooth, and the guide When moving back 11 and separating it from the iron core teeth,
If the rotation alignment piece 14 is pushed out close to the tip of the side plate 16, the spacing between the tips of the side plates before inserting the core teeth will be the same as the width of the core tooth head due to the anti-rotation piece. The side plate 16 can be easily inserted into the slot.

[Effects of the present invention] As described above, the guide device for a winding machine according to the present invention supports the base portions on both sides for free rotation at an interval larger than the width of the core tooth head, and slides the wire toward the tip portion. A side plate is provided with a sliding slope surface that allows the electric wire to be supplied by making the distance between the tips of the side plates inserted into the slots smaller than the width of the iron core tooth head rg<. The tip of the side plate can be inserted all the way to the bottom of the slot without being interfered with by the coil wound around the adjacent iron core teeth, and winding is performed from the bottom of each slot, making effective use of the inside of the slot and reducing the coil occupancy. This has the effect of improving the rate.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, with a portion shown in cross section. FIG. 2 is a side view of the guide, showing the lower half in section. 3 is a view corresponding to FIG. 1 showing a conventional example, FIG. 4 is a sectional view taken along the line A--A in FIG. 3, and FIG. 5 is a perspective view showing the tip of the conventional guide. l is the iron core, 2 is the iron core tooth, 3 is the slot, 7 is the nozzle arm, IO is the guide plate, 11 is the guide, ! 2 is the upper plate, 13
The bottom board! 4 is a rotation prevention piece, 15 haha*, +6 is a side plate, +7 is a hinge, 18 is a sliding slope, 19 is a tension spring, and 2o is a coil. Figure 3 Figure 2 Guide plate anti-rotation piece

Claims (1)

[Claims] A guide is provided for inserting the iron core teeth around which the electric wire is wound, and the electric wire led out from a nozzle rotating around the guide is slid along the inclined surface of the tip of the guide, and the guide is moved in the axial direction of the iron core teeth. In a winding machine that winds a wire around a core tooth while moving the wire, the base is rotatably supported on both sides of the guide at an interval wider than the width of the head of the core tooth, and a sliding slope is formed toward the tip. What is claimed is: 1. A guide for a winding machine, characterized in that a side plate is provided, and the tips of the side plates are inserted into slots on both sides of the core teeth such that the interval between the tips is smaller than the width of the core teeth.