CN2119043U

CN2119043U - Winding mould for hollow cup coil of micro motor

Info

Publication number: CN2119043U
Application number: CN 92205066
Authority: CN
Inventors: 钟如愚; 成和建; 徐映霞; 吴式潮; 潘曼云
Original assignee: TAIPU NEW TECHNOLOGY DEVEL Co HAIDIAN DISTRICT BEIJING
Current assignee: TAIPU NEW TECHNOLOGY DEVEL Co HAIDIAN DISTRICT BEIJING
Priority date: 1992-03-28
Filing date: 1992-03-28
Publication date: 1992-10-14

Abstract

The utility model relates to a winding mould with no framework and no iron core coil, which is particularly suitable for winding small coils. A plurality of claws are uniformly connected with a plane spiral slot along the circumference, and a plurality of claws can move inward along the radial direction to form the sizing die of a part of a cylindrical surface; one end of a boss is clamped in the sizing die, and cylinder surface at the end uncovered by the sizing die is provided with a cylinder telescopic winding former with two rows of uniform through holes; one end is matched with the through holes on the winding former, and the other end is a metallic needle uncovered by the cylindrical surface. Thereby, the labor and the time are saved, the required size and the geometric shape of coils can be assured, and the device is simple.

Description

Winding mould for hollow cup coil of micro motor

The utility model relates to a kind of exoskeletal iron-less core coil coiling mould, especially is applicable to the coiling of small coil.

At present, because exoskeletal iron-less core coil has advantages such as in light weight, little, is widely used in the motor, still, the coiling of this coil is more much more difficult than the coiling of ribbon core coil, and especially the small coil of electrical micro-machine is difficult to guarantee the geometry of coil and the requirement of size.

The purpose of this utility model is that a kind of electrical micro-machine coil die will be provided, and can wind the line exactly to go out to conform with the geometry and the dimensional requirement of coil with shaping.

The purpose of this utility model is achieved in that to be provided with and is connected on the planar spiral groove by a plurality of pawls equably along circumference, and a plurality of pawls can radially move inward the sizing die of forming a face of cylinder part, an end that is provided with the band boss is clamped in the sizing die, and be exposed at the cylindrical sleeve cartridge type winding former that the even through hole of two rows is arranged on the end face of cylinder outside the sizing die, be provided with an end and match, and the other end is exposed at the metal needle outside the face of cylinder with through hole on the winding former.When coiling, interlace 180 ° hole as one group row a hole and another row who is inserted with metal needle, Fig. 2 is marked with one group of hole with " 1 " as the hole around first element, the hole of second element in one group of hole of mark " 2 " and the like, wind coil, then be coated with a little glue, extract metal needle at coil surface, coil one end is moved on the shoulder that leans against boss, multijaw with sizing die clamps coil, unclamp multijaw then, the rotating coil position clamps again ..., until the geometry of coil be of the required size.

Owing to adopt such scheme, saving of work and time not only, and can guarantee desired geometry of coil and size, in addition, equipment is simple, and is with low cost.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the schematic diagram of an embodiment of the utility model.

Fig. 2 is the winding former surface development of an embodiment of the utility model.

Among the figure: 1. sizing die, 1a. planar spiral groove, 1b. pawl, 2. winding former, 2a. boss, 2b. one round, another round of 2c., 3. metal needle, 4. coil.

In embodiment illustrated in figures 1 and 2:

Sizing die 1 is on planar spiral groove 1a, along the circumference 120 ° of positions that are separated by, place 3 pawl 1b, screw the radial tubes spiral with the square spigot screwdriver, drive planar spiral groove 1a, 3 pawls radially move inward, form a part of face of cylinder, the maximum diameter of hole that 3 pawl 1b form is greater than 1.5 times of coil 4 external diameters, so that the putting into and taking out of coil 4, and the boss 2a width sum of the degree of depth in hole and winding former 2 long greater than coil.

Winding former 2 is cylindrical sleeves, one end band boss, and be clamped in the pawl 1b of sizing die 1, expose on an end face of cylinder of sizing die 1 outer end, have two row even through hole 2b, 2c, the distance of two rounds depends on the length of coil, and the axis of two rounds differs the number that 360 °/2N(N is every round in the space), one of a round with another round in to differ of 180 ° of positions be one group.

One end of metal needle 3 matches with the hole 2b or the 2c of winding former 2, and the other end exposes outside the hole, for the position of fixing coiling.

The coiling process is as follows on embodiment of the present utility model:

Requiring internal diameter of coiling is that φ 7.5mm, external diameter 8.2mm, length are the 8.1mm coil, and each coil is made up of 15 elements, line footpath (naked footpath) φ 0.07, the number of turn 15.

1. wind the line with winding former

Elder generation is at the film of winding former 2 last layer 0.05mm, with two hole 2b, 2c of Fig. 2 acceptance of the bid " 1 " as first group of hole, in this group hole, insert metal needle 3, begin around first element 15 circles, second group of hole interpolation metal needle 3 around intact back at mark " 2 ", around second element, the rest may be inferred, until the 15th element till intact.

2. the preparation before the shaping

Be coated with a little glue (* 98-1 type glue) on coil 4 surfaces that wind, then metal needle 3 is pulled up, the coil that has just wound is moved on to the end of winding former 2 band boss 2a together with film, one end of coil 4 is leaned against on the boss 2a, to guarantee that this end face is perpendicular to axis, the regular shape of coil after the shaping.

3. shaping

Wrap thin film again with leaning against other coil 4 outsides of boss 2a, rotation radial tubes spiral drives planar spiral groove 1a, 3 pawl 1b are inwardly stretched out, afterburning gently, then unclamp, the film 2 that will wind the line rotates an angle together with coil 4, allow the afterburning shaping of pawl 1b again, repeatedly several times, the geometry of coil 4 is met the requirements substantially, and then be coated in coil 4 parts (because we have adopted alcohol formula Self-binding cord), be put into again on the sizing die 1 with alcohol, firmly lock shaping, obtain conforming with geometry and size coil 4.

Claims

1, a kind of winding mould of electrical micro-machine drag cup coil, it is characterized in that: be provided with and be connected on the planar spiral groove equably along circumference by a plurality of pawls, and a plurality of pawls can radially move inward the sizing die of forming a face of cylinder part, an end that is provided with the band boss is clamped in the sizing die, and be exposed at the cylindrical sleeve cartridge type winding former that the even through hole of two rows is arranged on the end face of cylinder outside the sizing die, be provided with an end and match, and the other end is exposed at the metal needle outside the face of cylinder with through hole on the winding former.

2, by the winding mould of the described electrical micro-machine drag cup of claim 1 coil, it is characterized in that: the axis of two rounds differs 360 °/2N in the space.

3, by the winding mould of the described electrical micro-machine drag cup of claim 1 coil, it is characterized in that: a hole of row and another row interlace 180 ° hole as one group.