CN212463044U - Diameter 15 mm's step angle 9 permanent magnetism step motor - Google Patents

Abstract

The utility model provides a permanent magnet stepping motor with a step angle of 9 degrees and a diameter of 15mm, a front end cover component and a rear end cover component of the permanent magnet stepping motor are fixedly connected together, and a coil is fixedly contained in the front end cover component and the rear end cover component; the wire harness assembly is welded on a contact pin of the coil; the protective cover is adhered to the wiring harness assembly; the two rolling bearings are respectively arranged at the front end and the rear end of the rotor; the rotor assembly is filled with a coil, and the two rolling bearings are respectively erected in the front end cover assembly and the rear end cover assembly; the internal thread of the driving shaft and the external thread of the rotor are connected and assembled; the inner hole of the positioning sleeve is matched with the outer diameter of the driving shaft, and the inner hole of the positioning sleeve is connected and fastened with the external thread of the front end cover assembly; the method is characterized in that: the coil is formed by winding a wire clamp, the wire clamp comprises two pairs of polar plates which are injected in engineering plastics, and the middle parts of the polar plates are provided with 10 polar plate teeth which are uniformly distributed on the circumference and are folded upwards; the two plates of each pair of plates are oppositely arranged. The utility model discloses make diameter 15 mm's permanent magnet stepping motor obtain higher precision.

Description

Diameter 15 mm's step angle 9 permanent magnetism step motor

Technical Field

The utility model relates to a step motor, specifically speaking are permanent magnet step motor.

Background

The permanent magnet stepping motor needs to be used in different occasions, different response acceleration and thrust requirements of customers are met, and the precision of the existing PM motor (permanent magnet synchronous motor) is insufficient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a diameter 15 mm's step angle 9 permanent magnet stepping motor, its purpose is to solve prior art's shortcoming, makes diameter 15 mm's permanent magnet stepping motor obtain higher precision.

The utility model provides a technical scheme that its technical problem adopted is:

a permanent magnet stepping motor with a 15mm diameter and a 9-degree stepping angle is characterized in that a front end cover assembly and a rear end cover assembly are fixedly connected together, and coils are fixedly accommodated in the front end cover assembly and the rear end cover assembly;

the wire harness assembly is welded on a contact pin of the coil; the protective cover is adhered to the wiring harness assembly;

the two rolling bearings are respectively arranged at the front end and the rear end of the rotor; the spring, the large washer, the small washer, the two rolling bearings and the rotor which are arranged on the rotor form a rotor assembly together;

the rotor assembly is filled with a coil, and the two rolling bearings are respectively erected in the front end cover assembly and the rear end cover assembly;

the internal thread of the driving shaft and the external thread of the rotor are connected and assembled;

the inner hole of the positioning sleeve is matched with the outer diameter of the driving shaft, and the inner hole of the positioning sleeve is connected and fastened with the external thread of the front end cover assembly;

the method is characterized in that:

the coil is formed by winding a wire clamp, the wire clamp comprises two pairs of polar plates which are injected in engineering plastics, and the middle parts of the polar plates are provided with 10 polar plate teeth which are uniformly distributed on the circumference and are folded upwards; the two plates of each pair of plates are oppositely arranged.

The assembly process of the permanent magnet stepping motor with the diameter of 15mm and the step angle of 9 degrees is characterized in that: the method comprises the following steps:

1) putting two pairs of polar plates into an injection mold, wherein the two polar plates of each pair of polar plates are oppositely arranged;

2) integral injection molding, wherein the polar plate is injected into an engineering plastic body to obtain a wire clamp, and a coil is obtained after winding;

3) the coil is arranged in the front end cover assembly;

4) the spring is arranged in the injection molding magnetic steel rotor; the large washer is arranged in the rotor; the small washer is arranged in the rotor; the two rolling bearings are respectively arranged at the front end and the rear end of the rotor; the spring, the large washer, the small washer, the rolling bearing and the rotor form a rotor assembly;

5) the rotor assembly is loaded into the coil;

6) the coil is arranged in the rear end cover component, and a rolling bearing is arranged in the rear end cover component;

7) the front end cover component and the rear end cover component are welded by laser, and the other rolling bearing is erected in the front end cover component;

8) the wire harness assembly is welded on a contact pin of the coil by soldering tin;

9) bonding the protective cover on the wiring harness assembly by using glue;

10) the internal thread of the driving shaft and the external thread of the rotor are connected and assembled;

11) the inner hole of the positioning sleeve is assembled with the outer diameter of the driving shaft and is tightly connected with the outer thread of the front end cover component.

The utility model discloses an useful part lies in:

the utility model discloses a step angle 9 permanent magnet step motor so have higher precision performance than current PM motor, satisfy the requirement of using the operating mode.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a perspective view of a polar plate with a step angle of 9 degrees;

fig. 2 is a three-dimensional exploded view of the wire winding clip with a step angle of 9 degrees;

fig. 3 is an exploded view of the whole assembly of the utility model.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained according to the drawings without inventive labor. In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "bottom", and the like as used herein are used in the description to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1:

the utility model discloses polar plate 100 middle part has the polar plate tooth 101 of upwards turning up of 10 circumference equipartitions.

As shown in fig. 2 and 3:

1) putting two pairs of polar plates 100 into an injection mold, wherein the two polar plates 100 of each pair of polar plates 100 are oppositely arranged; namely, the pole teeth 101 of the two pole plates 100 are oppositely arranged;

2) integral injection molding, wherein the polar plate 100 is injected into the engineering plastic body 100' to obtain a wire clamp 102, and the coil 10 is obtained after winding;

3) the coil 10 is installed in the front end cover assembly 3;

4) the spring 7 is arranged in the injection molding magnetic steel rotor 8; the large gasket 6 is arranged in the rotor 8; the small gasket 5 is arranged in the rotor 8; the rolling bearing 4 is arranged at the front end of the rotor 8; the rolling bearing 9 is installed at the rear end of the rotor 8; the spring 7, the large washer 6, the small washer 5, the rolling bearing 4, the rolling bearing 9 and the rotor 8 form a rotor assembly 80;

5) the rotor assembly 80 encloses the coils 10;

6) the coil 10 is arranged in the rear end cover assembly 13, and the rolling bearing 9 is erected in the rear end cover assembly 13;

7) the front end cover component 3 and the rear end cover component 13 are welded by laser, and the rolling bearing 4 is erected in the front end cover component 3;

8) the wire harness assembly 11 is welded on the pins 103 of the coil 10 by soldering tin;

9) bonding the protective cover 12 on the wiring harness assembly 11 by glue;

10) the internal thread of the driving shaft 2 and the external thread of the rotor 8 are connected and assembled;

11) the inner hole of the positioning sleeve 1 is assembled with the outer diameter of the driving shaft 2 and is tightly connected with the outer thread of the front end cover component 3.

For a Permanent Magnet (PM) stepper motor, the step angle calculation is as follows:

step angle θ is 360 °/(4 × N);

n: the number of teeth of a single polar plate;

the utility model discloses polar plate 100 middle part has the polar plate tooth 101 of upwards turning up of 10 circumference equipartitions, and also N is 10, and the step angle theta is 360 (4N) 360 (4) 10 (4) 9.

The utility model discloses obtain a diameter 15 mm's step angle 9 permanent magnetism step motor through above step, its structure is:

the front end cover component 3 and the rear end cover component 13 are fixedly connected together, and the coil 10 is fixedly accommodated in the front end cover component 3 and the rear end cover component 13.

The wire harness assembly 11 is welded on the pins 103 of the coil 10 by soldering tin; the shield 12 is bonded to the harness assembly 11.

The rolling bearing 4 is arranged at the front end of the rotor 8; the rolling bearing 9 is installed at the rear end of the rotor 8; the spring 7, the large washer 6, the small washer 5, the rolling bearing 4, and the rolling bearing 9 mounted on the rotor 8 constitute a rotor assembly 80 together with the rotor 8.

The rotor assembly 80 encloses the coils 10, the rolling bearing 4 is mounted in the front end cap assembly 3, and the rolling bearing 9 is mounted in the rear end cap assembly 13.

The internal thread of the driving shaft 2 and the external thread of the rotor 8 are connected and assembled;

the inner hole of the positioning sleeve 1 is matched with the outer diameter of the driving shaft 2, and the inner hole of the positioning sleeve is tightly connected with the outer thread of the front end cover assembly.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (1)

1. A permanent magnet stepping motor with a 15mm diameter and a 9-degree stepping angle is characterized in that a front end cover assembly and a rear end cover assembly are fixedly connected together, and coils are fixedly accommodated in the front end cover assembly and the rear end cover assembly;

the wire harness assembly is welded on a contact pin of the coil; the protective cover is adhered to the wiring harness assembly;

the two rolling bearings are respectively arranged at the front end and the rear end of the rotor; the spring, the large washer, the small washer, the two rolling bearings and the rotor which are arranged on the rotor form a rotor assembly together;

the rotor assembly is filled with a coil, and the two rolling bearings are respectively erected in the front end cover assembly and the rear end cover assembly;

the internal thread of the driving shaft and the external thread of the rotor are connected and assembled;

the inner hole of the positioning sleeve is matched with the outer diameter of the driving shaft, and the inner hole of the positioning sleeve is connected and fastened with the external thread of the front end cover assembly;

the method is characterized in that:

the coil is formed by winding a wire clamp, the wire clamp comprises two pairs of polar plates which are injected in engineering plastics, and the middle parts of the polar plates are provided with 10 polar plate teeth which are uniformly distributed on the circumference and are folded upwards; the two plates of each pair of plates are oppositely arranged.

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