JPH04172960A - Stator insulation board for linear pulse motor - Google Patents

Abstract

PURPOSE:To improve production efficiency by providing a cylindrical guide pin which serves as a guide pin when a pole tooth board is mounted on a surface opposing to a drive winding, matched with a pole tooth board positioning pin of a die at the time of resin molding, and the support of which is bent at the time of fitting of dies. CONSTITUTION:An assembled stator is mounted on a lower die 8 and an insulation board 3 guide pin 31 is slightly projected from a guide hole in a magnetic tooth board 6 thus setting the position of the magnetic tooth board 6. An upper die 9 is then fitted thereon and a guide pin 91 for positioning the pole tooth board 6 mounted on the upper die 9 is abutted on the insulation board 3 guide pin 31 while furthermore a support 32 is bent and pushed underneath the guide pin 31 thus positioning the pole tooth board 6 accurately by means of the guide pin 91. According to the constitution, all components can be assembled integrally prior to mounting of the stator on the die for the purpose of integral resin molding, and thereby the components can be assembled into the die through a single step resulting in the improvement of efficiency in resin molding work.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an insulating plate of a stator of a linear pulse motor, particularly one
This invention relates to an insulating plate for a stator of a linear pulse motor, in which a drive winding is provided on the magnetic pole of a secondary core via an insulating plate, and a magnetic pole tooth plate is superimposed on the magnetic pole and integrally molded with resin.

[Conventional technology]

Conventionally, the insulating plate of the stator of this type of linear pulse motor was placed above the bias magnet 1 and the yoke 2, as shown in FIG. 4, which is an exploded perspective view of the inside of the stator of a typical linear pulse motor. The insulating plates 7 formed as shown in FIG. The assembled internal mechanism is molded integrally with the magnetic pole tooth plate on a mold during resin molding to complete the stator.

[Problem to be solved by the invention]

The insulating plate of the stator of the conventional linear pulse motor mentioned above is used only for assembling the internal mechanism of the stator, so in order to complete the stator, it is necessary to insert a magnetic pole tooth plate into the mold during molding. The process involves attaching the internal mechanism and then integrally molding it with resin, resulting in two parts being attached to the molding die, which has the disadvantage of poor production efficiency.

[Means to solve the problem]

The insulating plate of the stator of the linear pulse motor of the present invention includes a primary iron core portion consisting of a bias magnet, a yoke that sandwiches the bias magnet, and a magnetic pole coupled to the yoke, and a primary iron core portion that is wound around the magnetic pole. A stator for a linear pulse motor that is integrally molded with resin after laminating and assembling a drive winding, an insulating plate that insulates the drive winding and the primary iron core, and a magnetic pole tooth plate formed by etching. In the insulating plate used for this purpose, the insulating plate serves as a guide pin when the magnetic pole tooth plate is attached to the opposing surface of the drive winding, matches the positioning pin of the magnetic pole tooth plate of the mold during resin molding, and It is constructed by having a cylindrical guide bin whose supporting part folds back when the mold is matched with a mating mold.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIGS. 1(a), (b), and (C) are a perspective view, a plan view, and an A-A in FIG. 1(b) of an embodiment of the present invention, respectively.
FIG. In FIG. 1, a pillar-shaped guide pin 31 supported by a support part 32 is provided on the insulating plate surface in addition to a support base 33 that determines the distance from the magnetic pole tooth plate during assembly.

2 is an exploded perspective view of the embodiment shown in FIG. 1 using the insulating plate 3 or before integrally molding the stator of the near motor with resin. The assembling of the magnetic pole 5 and the magnetic pole 5 is the same as in the conventional case shown in FIG.
It is shown that the magnetic pole tooth plate 6 is incorporated and assembled integrally using the guide bin 31 as a guide.

Figure 3 is a sectional view showing the process of putting the assembled stator in a mold to integrally mold it with resin as shown in Figure 2, and Figure 3 (a) shows the unassembled fixed stator. The state in which the child is placed on the lower mold 8 is shown, and the guide bin 3 of the insulating plate 3 is shown.
1 slightly protrudes from the guide hole of the magnetic pole tooth plate 6, indicating that the position of the magnetic pole tooth plate is set. Figure 3(b)
3 shows a state in which the upper mold 9 has been aligned following the state shown in FIG. 91 comes into contact with the guide pin 31 of the insulating plate 3, and further folds the support part 32 and pushes the guide pin 31 downward, indicating that the guide pin 91 accurately aligns the magnetic pole tooth plate 6. There is.

〔Effect of the invention〕

As explained above, in the present invention, all of the component parts can be assembled as one piece before the stator is placed in the mold to be integrally molded with resin, so that assembly into the mold can be done in one step. This has the effect of improving the efficiency of resin molding.

[Brief explanation of drawings]

FIGS. 1(a), (b), and (C) are an external perspective view, a plan view, and A of FIG. 1(b), respectively, of an embodiment of the present invention.
-A sectional view, FIG. 2 is an exploded perspective view of the stator using the embodiment shown in FIG. 1, and FIG. 3 <a> is a sectional view of the stator assembly shown in FIG. 2 placed on a mold. , Fig. 3(b) is similar to Fig. 3(a)
), and FIG. 4 is an exploded perspective view of the interior of a conventional linear pulse smoke stator using an insulating plate. 1... Bias magnet, 2... Yoke, 3,7.
...Insulating plate, 4...Drive winding, 5...Magnetic pole, 6...
・Magnetic pole tooth plate, 8...Lower mold, 9...Upper mold, 3
1.91... Guide bin, 32... Support part, 33...
・Support stand.

Claims (1)

[Claims] A primary core portion consisting of a bias magnet, a yoke that sandwiches the bias magnet, and a magnetic pole coupled to the yoke, a drive winding wound around the magnetic pole, and the drive winding and the primary core. In the insulating plate used in the stator of a linear pulse motor, the insulating plate used in the stator of a linear pulse motor is integrally molded with resin after laminating and assembling an insulating plate insulating the parts and a magnetic pole tooth plate formed by etching, and the plate facing the drive winding. serves as a guide pin when the magnetic pole tooth plate is attached to the surface, and matches a positioning pin of the magnetic pole tooth plate of the mold during resin molding;
An insulating plate for a stator of a linear pulse motor, characterized in that it has a cylindrical guide pin whose support part bends when the mold is matched with a mating mold.