JPS5996853A - Method for manufacturing bottomed cup cylindrical winding body and apparatus for manufacturing the same - Google Patents

Abstract

PURPOSE:To obtain a balanced cylindrical wound body with a bottomed cup by contacting a pair of roller engaging members with shoulders of a strand winding unit having shoulders at the axial end and engaging strands in a string aligned strip. CONSTITUTION:A cylindrical jig 1 is composed of a cylinder 2 and an outer cylinder 3, the cylinder 2 has an inserting hole 4, and is able to be axially reciprocated to the outer cylinder 3. The bobbin 5 has shoulders 8 and opening end faces 9 at both axial ends, and a commutator 7 is extended toward the opening end face 9 of the bobbin 5. The strands 10 are aligned and wound obliquely to the axis of the peripheral surface 11 of the bobbin 5 between the shoulder 8 and the opening end face 9. Elastic rollers 12, 13 are provided as a pair of roller engaging members at the side of the shoulder 8 of the bobbin 5.

Description

[Detailed Description of the Invention] The present invention C. Coreless motor, slot, less motor,
The present invention relates to a bottomed cup cylindrical winding body as an armature used in brushless motors and the like.

The applicant filed a patent application No. 57-1180 on July 7, 1980.
No. 15, a method for manufacturing a cylindrical winding body, Patent Application No. 147989, Patent Application No. 57-1, filed on August 26, 1981.
The company has applied for a patent for a cylindrical winding body as No. 47990. This cylindrical winding body is a cylindrical one with a bottomed force lug, and the strands are directly wound around a cylindrical jig as a stranded wire winding body to form a wound stranded wire body in the shape of a bottomed cup cylinder. The wound wire body is removed from the cylindrical jig. The cylindrical jig used as the wire-wound body has a shoulder portion at its axial end on which the wire is wound, but the diameter of the cylindrical jig with respect to the diameter of the bottomed cup cylindrical wire-wound body is When manufacturing a bottomed cup cylindrical winding body with a small axis length, when locking the strands to the shoulders, the previously disclosed invention is capable of aligning and locking the strands to the shoulders. Therefore, it is difficult to form an orderly arc-shaped stranded wire band on the shoulder, and the thickness in the radial direction also increases on the circumferential surface of the cylindrical jig as the body for winding the stranded wire. There is a problem in that it is difficult to manufacture a thin bottomed cup cylindrical winding body.

The present invention has been made in view of the above-mentioned problems, and is an invention that can manufacture a bottomed cag cylindrical winding body that is wound in alignment even when the axial length is small relative to the diameter. An object of the present invention is to provide a method for manufacturing a bottom force lug cylindrical winding body and an apparatus for manufacturing the same.

EMBODIMENT OF THE INVENTION Below, the manufacturing method of the bottomed cylindrical winding body and its manufacturing apparatus based on this invention are demonstrated with reference to drawings.

FIG. 1 shows the main parts of the manufacturing apparatus used for manufacturing the bottomed force lug cylindrical winding body according to the present invention. In FIG. Jig 1 is
It is roughly composed of a cylinder 2 and an outer cylinder 3, and the inner cylinder 2 has an insertion hole 4.
It is capable of reciprocating in the axial direction with respect to the outer cylinder 3, and can be removed from the cylindrical jig 1 after the production of the bottomed cup cylindrical winding body described later is completed. It looks like this. The outer cylinder 3 rotates integrally with the inner cylinder 2, and is rotated by a rotational drive source (not shown), and a bobbin 5 as a wire-wound body is attached to the outer cylinder 3. For this bobbin 5, a film or sheet formed by hot press molding is used. Here, a wire to be described later is wound around this bobbin 5, and a rotating shaft 6 and a commutator 7 are integrally formed on this bobbin 5 by a molding method.

This rotating shaft 6 is inserted into the insertion hole 4. here,
The bobbin 5 has a short cylindrical shape with a diameter larger than its axial length, and the riser 7' projects outward in the radial direction. The bobbin 5 has shoulder portions 8 at both ends in the axial direction.
and an open end surface 9, and the commutator 7 has the bobbin 5.
It extends in the axial direction toward the opening end surface 9 of. The strands 10 are wound on the circumferential surface 11 of the bobbin 5 between the shoulder 8 and the open end surface 9 in alignment in a diagonal direction with respect to the axis of the bobbin 5. is provided with a pair of elastic rollers 12.13 as rolling locking members, as shown in FIG.扛、elastic row 212.
13 is reciprocatable in the direction in which its struts 14, 15 extend. An elastic roller 16 as a transfer locking member is provided on the open end surface 9 side of the bobbin 5 and is rotatable about its support shaft 17 . Here, elastic roller 12.
13 is shaped like a truncated cone, and has a cylindrical surface 12a, 1
3a, and these curved surfaces 12a, 13a are configured to be pressed against the edge of the shoulder portion 8. As shown in FIG. 2, the elastic roller 16 is configured to be pressed against the circumferential surface 11 of the bobbin 5 from between a pair of elastic rollers 12 and 13 in the circumferential direction. The elastic rollers 12.13 are
It has the function of aligning and winding the strands 10 on the surface of the shoulder portion 8 to form an arc-shaped strand band, and the elastic roller 16 has the function of stacking and locking the strands on the open end surface 9 of the bobbin 5. ing. The strands 10 are aligned and wound as shown in FIGS. 2 and 4 to form a strand band 18. Here, the strands 10 are arranged so that the strands 10 are aligned with each other with the axis 6 as a boundary. Each elastic roller 1 is latched to the open end surface 9 on the side far from the portion of the shoulder 8 to be latched.
2.13.16 are arranged, and in FIG. 2, the arrow indicates the winding direction of the strand 11.

When winding the strand 10 around the mobobbin 5, the well-known method of winding with a wire or fly winding using a winding head is used. Next, the winding order is shown in Figs. 5 and 6. The explanation will also be made with reference to

In order to perform aligned winding, the strands 10 are wound on the surface of the shoulder portion 8 and also along the surface of the outer cylinder 3.
As shown in FIG. ζ in FIG.
The wire 10 is placed on the circumferential surface I of the bobbin 5 as shown by the symbol
A part of the opening end face 9 where the elastic roller 16 is present, ζ This strand 1
0 is held in place, and the element wire 10 is made to contact the elastic roller 13 by passing through this elastic roller 16 toward the shoulder part 8 where the elastic roller 13 is present, and Q is made to stop this element wire 10 in the shoulder part 8. ,
This series of operations is carried out as shown by symbols ■ to ■ to form a wire band 18 as a dividing wire ring, and here, after drawing out the wire 10 for tapping, the elastic rollers 12, 13 .16, the bobbin 5 is rotated by a predetermined angle together with the cylindrical jig 1.By repeating this a number of times equivalent to the number of dividing wire rings, the circumference of the bobbin 5 is rotated as shown in Fig. 4. A plurality of strand bands 18 are formed in the direction.

Note that FIG. 5 is a perspective view showing the winding order of this wire 10. Thereafter, as shown in FIG. 1, by moving the inner cylinder 2 and the elastic rollers 12, 13, and 16 in the direction of the arrow and removing the bobbin 5 from the cylindrical jig 1, the bottomed force lug cylindrical winding When the wires 10 are locked to the open end surface 9, the wires 10 are aligned to form a wire band as shown in FIG. A well-balanced bottomed cup cylindrical winding body 19 is formed so that the thickness in the radial direction does not increase. ．．
13, each strand 10 is wound in parallel so that it does not have a mountain height in the axial direction of the bobbin 5,
After the wire band 18 is formed over the entire circumferential surface of the bobbin 5, the wire 10 for tagging is moved to the riser 7'.
7' to be soldered.

In this way, the bottomed cup cylindrical winding body 19 is constructed, but after the strand band 18 is formed over the entire circumferential surface of the bobbin 5, the commutator 7n' Obi 1
It is buried in the cylindrical space formed by No. 8, and No. 7
The figure shows a state in which a motor is assembled using this bottomed cup cylindrical winding body 19. In this figure, 20 is a case, 21 is a case lid, 22 is a permanent magnet, and 23 is a brush. be.

8 and 9 show other embodiments of the method and apparatus for manufacturing a bottomed cup cylindrical winding body according to the present invention, and FIG.
The figure shows a configuration in which the support shafts 14.15 of a pair of elastic rollers are arranged horizontally, and FIG. 9 shows a configuration in which the support shafts 14.15 of a pair of elastic rollers are arranged in a horizontal direction. ,
FIG. 9 shows a pair of elastic rows 212.13 having a cylindrical shape and having a circumferential surface pressed against the edge of the shoulder portion 8 from an oblique direction. Therefore, detailed explanation thereof will be omitted.

10 and 11 show still another embodiment of the winding method, in which a pair of elastic rollers 12.
13 and the elastic roller 16 are arranged close to each other.
, ■, . . . indicate the winding order of the wire 10. With this configuration, the distance between the locking parts from the shoulder part 8 to the opening end face 9 is shortened, so that one wire band 18
The length of the strands 10 required to form the strands can be reduced, the resistance loss is reduced, and the overlap of the strands 18 on the circumferential surface is also reduced. This has the advantage that the inertia of the winding body is also reduced.

Here, the wire 1o is wound around the bobby 15 to manufacture the bottomed cup cylindrical winding body 19.
When manufacturing the bottomed cag cylindrical winding body 19 using a wire having a diameter of the above value, it can be manufactured by winding the wire 10 directly around the cylindrical jig 1. When manufacturing the bottomed cup cylindrical winding body 19 using the wire 1o having a straight diameter of less than 1 mm, winding the wire 1o around the bobbin 5 will prevent wire breakage due to damage to the wire 10. This is preferable from the viewpoint of preventing. In addition, it is also possible to configure the elastic rollers 12, 13, and 16 to rotate on their own circumferential surface while being rotated around the bobbin 5.

As explained above, according to the manufacturing method of the bottomed cup cylindrical winding body according to the present invention, a pair of transfer locking members are attached to the shoulders of the wire winding body having shoulders at the nine axial ends. Since the strands are brought into contact with each other and locked as an arc-shaped aligned wire band on the shoulder, a short cylindrical bottomed cup cylindrical winding body whose axial length is smaller than its diameter can be aligned and wound. The present invention has the advantage that it is possible to provide a well-balanced bottomed cup cylindrical winding body.

According to the apparatus for manufacturing a bottomed cup cylindrical winding body according to the present invention, since the circumferential surface of the elastic roller serving as the pair of transfer locking members is pressed obliquely to the edge of the shoulder portion of the bobbin, The circumferential surface of the elastic roller comes into contact only with the edge of the shoulder, making it possible to direct the strand diagonally from the shoulder via the edge to the circumferential surface of the wire-wound body. It became possible,
The length of the strands wound diagonally along the circumferential surface of the bobbin is the length of the strands required to axially press the circumferential surface of a pair of elastic rollers against the circumferential surface near the shoulder of the wire-wound body. In addition, when the circumferential surface of the pair of elastic rollers is pressed against the circumferential surface of the shoulder portion of the wire-wound body in the axial direction,
When axially press-contacting the circumferential surface of the wire-wound body between the shoulder and the open end surface, a part of the wire extending along the circumferential surface of the wire-wound body is The axial length of the bottomed force lug cylindrical winding body is limited by the presence of the pair of elastic rollers, since the cylindrical winding body extends in the axial direction of the winding body.
According to the present invention, since the circumferential surface of the elastic roller contacts only the edge of the shoulder portion, the axial length of the bottomed cup cylindrical winding body is not restricted by the presence of the pair of elastic rollers. Since the axial length of the bottomed cag cylindrical winding body can be made smaller, it is possible to produce an even smaller bottomed force lug cylindrical winding body.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view showing the configuration of the main parts of a manufacturing device used in the method for manufacturing a bottomed force lug cylindrical winding body according to the present invention, Fig. 2 is a plan view thereof, and Fig. 3 is a manufacturing device thereof. FIG. 4 is an explanatory diagram of its winding, FIG. 5 is a perspective view of its winding, and FIG. 6 is a partial cross-sectional side view showing the schematic structure of the bottomed cag cylindrical winding body according to the present invention. Fig. 7 is a vertical cross-sectional view of the bottomed cup cylindrical winding body according to the present invention applied to a motor, and Figs. 8 and 9 are manufacturing methods of the bottomed cup cylindrical winding body according to the present invention. FIGS. 10 and 11 are longitudinal cross-sectional views of main parts showing other embodiments of the manufacturing apparatus used in the present invention. FIGS. FIG. 10 is a plan view thereof, and FIG. 11 is a side view thereof. 1...Cylindrical jig 5..., bobbin 7'...riser 8...shoulder 9--opening end surface
10... Elemental wire 11... Circumferential surface 12.13... Pair of elastic rollers 12a, 13a... Taper surface 16... Elastic roller 18... Wire band 19... Bottomed force lug Cylindrical winding body (and 1 other person) Fig. 1 7' Fig. 2 Fig. 3 Fig. 5 Fig. 6 Fig. 8 Fig. 9 Fig. 10 Display of procedural amendment case 1982 Patent application No. 206, 41. Name of the invention: Method for manufacturing a bottomed cup cylindrical winding body and its manufacturing device Relationship with the case of the amended party Name of patent applicant: Entac Co., Ltd. (and 1 other person) Date of amendment order: Showa Year, Month, Day (Spontaneous) 7. Contents of amendment (1) Mei 1, Mei., page 3, line 4 to line fJ5 [-slot. Correct it as ``Resmotor J'' and ``kr slotless motor, -ta''. (2) Same, page 5, line 1, ``circle' plane 2'' is corrected to [inside #2J]. (3) Same, page 7, line 2, before “Lamination locking”, “Concentration lO
Insert "." (4) "Figures 2 and 4" on page 7, line 3 has been corrected to read "Figures 2 to 4." (5) Same, page 7, lines 10 to 11, "...nekam winding" is corrected to "zigzag aligned winding." (6) In the same article, page 8, line 9, ``Wrap as shown by ■'' should be amended to read ``Wrap around several dozen times as shown by ■ and ■' to ■'.'' (7) Same, page 9, line 15 [Correct commutator 7n1 to read "commutator 7°". (8) Same, page 10, lines 5-6 “Figure 9 is...
...Delete the text that says, (9) Same, page 11, line 10 [Can be done% 0
．． 1. The phrase ``have'' should be amended to ``can be done. However, it is extremely thin, with a diameter of 0.1 ran or less.'' 4. Figure 3 of the attached drawings, No. 7 Correct the figure as shown in the attached sheet.

Claims (2)

[Claims] (1) A wire is wound from the shoulder of a wire-wound body having a shoulder at an axial end portion over the circumferential surface of the wire-wound body in the axial direction; A method for manufacturing a bottomed cup cylindrical wire winding body, the method comprising: providing a pair of transfer locks at a constant angle in the circumferential direction on the circumferential surface of the wire winding body near the shoulder portion; The pair of members are brought into contact with each other in the circumferential direction on the circumferential surface of the wire-wound body that is away from the circumferential surface of the wire-wound body near the shoulder in the axial direction of the wire-wound body. Another transfer locking member is brought into contact between the transfer locking members, and the strands are aligned and locked in a string shape while making contact with the pair of transfer locking members at the shoulder portion, and the wires are aligned and locked at the shoulder portion. The strand is placed along the circumferential surface of the wire-wound body that is distant from the circumferential surface of the nearby wire-wound body in the axial direction of the wire-wound body, while making contact with the other transfer locking member. Then, the strands are wound in an orderly manner on the surface of the wire-wound body to form a split wire ring consisting of a strand band, and this is repeatedly arranged around the entire circumference to form a bottomed cup tube. 1. A method of manufacturing a bottomed cup cylindrical winding body, the method comprising manufacturing a bottomed cup-shaped winding body. (2) It has a shoulder part and is rotated by a rotational drive source, and the strands are wound in alignment around the entire circumference as split wire rings.
a pair of elastic rollers as transfer locking members that are located near the shoulders of the wire winding body and press against the circumferential surface of the wire winding body; A rolling lock that is pressed from between the pair of elastic rollers to the circumferential surface of the wire-wound body that is distant from the circumferential surface of the wire-wound body near the part in the axial direction of the wire-wound body. Another elastic roller as a member, and a winding means for winding the wire around the wire-wound body, the pair of elastic rollers having circumferential surfaces obliquely to the edge of the shoulder portion. An apparatus for manufacturing a bottomed cylindrical winding body, which is configured to be pressed into contact with a bottomed cylindrical wire.