Injection molding body polar plate, injection molding body assembly, injection molding body mold and stepping motor

Abstract

The invention provides an injection molding body polar plate, an injection molding body assembly, an injection molding body mold and a stepping motor, and relates to the technical field of stepping motor production. The injection molding body pole plate comprises a pole piece ring, a plurality of pole claws bent towards one side are arranged on the inner side of the pole piece ring at intervals in the circumferential direction, a glue passing hole is formed in the pole piece ring, and a PIN position groove and a positioning string are arranged on the pole piece ring. The injection molding body assembly comprises four injection molding body polar plates, every two of the four injection molding body polar plates are oppositely arranged, the polar claws of every two opposite injection molding body polar plates are oppositely arranged in a staggered mode, and injection molding bodies are poured among the four injection molding body polar plates. Based on the technical scheme, the injection molding body assembly uses the four injection molding body polar plates in the same shape, so that the problem that materials are mixed when an operator operates and puts the injection molding body polar plates into the mold is solved, and pouring between the injection molding body polar plates can be completed through the injection molding body mold provided by the invention to form an injection molding body.

Description

Technical Field

[0001] The invention relates to the technical field of stepper motor production, and in particular to an injection molded body plate, an injection molded body component, an injection molded body mold and a stepper motor. Background Art

[0002] The stepper motor injection molding assembly is a relatively special motor assembly structure. The injection molding is a component formed by injecting plastic materials into a specific injection molding mold through the injection molding process. The injection molding adopts silicon steel sheet injection molding, and a total of four plates are required to complete the injection molding. The shapes of the two middle plates (inner plates) and the two side plates (outer plates) are the same. When using the existing injection molding mold for production, the two inner plates and the two outer plates are similar in shape. When the operator puts them into the mold, it is easy to mix the materials, making the production operation difficult and inefficient. Summary of the invention

[0003] In response to the above-mentioned problems in the prior art, the present application proposes an injection-molded plate, an injection-molded assembly, an injection-molded mold and a stepper motor, which can use four plates of the same shape to complete injection molding, thereby avoiding the problem of mixing of materials when operators place them into the mold.

[0004] One aspect of the present invention provides an injection molded electrode plate for use in a stepper motor, the injection molded electrode plate comprising a pole piece ring, a plurality of pole claws bent to one side are circumferentially spaced apart on the inner side of the pole piece ring, a glue hole is provided on the pole piece ring, and a PIN needle position groove and a positioning string are provided on the pole piece ring.

[0005] Another aspect of the present invention provides an injection molded body assembly, which includes four injection molded body plates as described above, wherein the four injection molded body plates are arranged opposite to each other in pairs, and the pole claws of two opposite injection molded body plates are arranged oppositely and staggered, and an injection molded body is cast between the four injection molded body plates.

[0006] Another aspect of the present invention provides an injection molding mold, which is applied to the injection molding assembly as described above, wherein the injection molding mold includes an injection molding base and an injection molding jig, and the injection molding jig includes two jig plates stacked up and down, wherein the jig plates are provided with positioning holes, and the surfaces of the jig plates at both ends of the positioning holes are provided with positioning grooves, and the pole piece ring can be positioned and placed in the positioning groove through its positioning chord, and the injection molding jig after positioning and placing the injection molding body pole plate can cooperate with the injection molding base to cast between the injection molding body pole plates to form an injection molding body.

[0007] As a further improvement of the above technical solution:

[0008] The above-mentioned injection mold, further, each layer of the jig plate includes two positioning plates, and the two positioning plates are spliced ​​to form the positioning hole and the positioning groove.

[0009] The above-mentioned injection molding mold further comprises: first positioning mechanisms are provided on both sides of the positioning plate along the first direction on the injection molding base; second positioning mechanisms are provided on both sides of the positioning plate along the second direction on the injection molding base; the first positioning mechanism and the second positioning mechanism cooperate to position the positioning plate on the injection molding base.

[0010] The above-mentioned injection mold, further, the side wall of the positioning plate along the splicing direction is inclined, and the first positioning mechanism includes a first positioning block, and the first positioning block can be inclined and positioned to abut against the side wall of the positioning plate along the splicing direction.

[0011] The above-mentioned injection mold, further, the second positioning mechanism includes a second positioning block and an abutment block, the second positioning block can be positioned and abutted with the side wall of the positioning plate, and the abutment block abuts against the side of the second positioning block away from the positioning plate.

[0012] The above-mentioned injection molding mold, further, the injection molding base includes an injection molding substrate, an injection molding plate and a pressure plate, the injection molding jig with the injection molding plate placed can be positioned on the injection molding substrate, the injection molding plate is placed on the injection molding jig, the pressure plate can press the injection molding plate and the injection molding jig onto the injection molding substrate, an injection molding channel is opened on the injection molding plate, and an injection molding joint is installed on the injection molding plate, and the injection molding material can be drained to the injection molding channel through the injection molding joint to inject the injection molding body component.

[0013] The above-mentioned injection molding mold further comprises a positioning groove on the pressure plate, and the injection molding joint is positioned in the positioning groove by an injection molding positioning block. The injection molding base also includes a cover plate and a panel. The cover plate is arranged on the pressure plate to limit the injection molding positioning block in the positioning groove, and the panel cover is arranged on the cover plate. The injection molding joint can pass through the cover plate and the panel.

[0014] Another aspect of the present invention provides a stepper motor, comprising an injection-molded body component formed by injection molding using the injection-molded body mold as described above.

[0015] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved.

[0016] The present invention provides an injection molded body plate, an injection molded body assembly, an injection molded body mold and a stepper motor, which have at least the following beneficial effects compared with the prior art: the injection molded body assembly includes four injection molded body plates of the same shape, the four injection molded body plates are arranged opposite to each other in pairs, and the pole claws of the two opposite injection molded body plates are arranged oppositely and staggered, and an injection molded body is cast between the four plastic body plates. When the injection molded body assembly is made using the injection molded body mold provided by the present application, the pole piece ring can be positioned in the positioning groove by its positioning string. Since each pole piece ring is positioned and placed at a different angle in the positioning groove where it is located, the four injection molded body plates positioned and placed on the injection molded body jig are arranged opposite to each other in pairs, and the pole claws of the two opposite injection molded body plates are arranged oppositely and staggered, and then the injection molded body jig on which the injection molded body plates are placed can cooperate with the injection molding base to cast between the injection molded body plates to form an injection molded body. The injection molded body assembly uses four injection molded body plates of the same shape, thereby avoiding the problem of material mixing when the operator puts the materials into the mold, and can complete the casting between the injection molded body plates to form the injection molded body through the injection mold provided by the present application.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0020] Figure 1 The schematic diagram of the structure of the injection-molded electrode plate provided by the embodiment of the present invention is shown;

[0021] Figure 2 A schematic structural diagram of an injection molding assembly provided by an embodiment of the present invention is shown;

[0022] Figure 3 A schematic diagram showing the positions of four injection-molded body plates of an injection-molded body assembly provided by an embodiment of the present invention is shown;

[0023] Figure 4 The structure diagram of the injection mold provided by the embodiment of the present invention is shown Figure 1 ;

[0024] Figure 5 The structure diagram of the injection molding fixture provided by the embodiment of the present invention is shown Figure 1 ;

[0025] Figure 6 The structure diagram of the injection molding fixture provided by the embodiment of the present invention is shown Figure 2 ;

[0026] Figure 7 The structure diagram of the injection molding fixture provided by the embodiment of the present invention is shown Figure 3 ;

[0027] Figure 8 The structure of the injection molded substrate provided by the embodiment of the present invention is shown in FIG. Figure 1 ;

[0028] Fig. 9 The structure of the injection molded substrate provided by the embodiment of the present invention is shown in FIG. Figure 2 ;

[0029] Fig.10 A schematic diagram showing the structure of an injection molding plate provided by an embodiment of the present invention is shown;

[0030] Fig.11 The structure diagram of the injection mold provided by the embodiment of the present invention is shown Figure 2 .

[0031] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0032] Description of reference numerals:

[0033] 100-injection molding body plate, 110-pole ring, 111-glue hole, 112-PIN needle slot, 113-positioning string, 120-pole claw, 200-injection molding body assembly, 210-injection molding body, 300-injection molding body mold, 310-injection molding base, 311-first positioning block, 312-second positioning block, 313-abutment block, 314-injection molding substrate, 315-injection molding Plate, 316-pressing plate, 317-injection channel, 318-injection joint, 319-installing groove, 320-injection positioning block, 321-cover plate, 322-panel, 323-injection pin, 324-receiving groove, 325-feeding hole, 326-feeding hole, 330-injection body fixture, 331-fixture plate, 332-positioning hole, 333-positioning groove, 334-positioning plate. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] Embodiment 1

[0041] The embodiment of the present invention provides an injection-molded electrode plate 100 , which can use four pieces of the injection-molded electrode plates 100 of the same shape to complete injection molding, thereby avoiding the problem of material mixing when operators put the materials into the mold.

[0042] See also Figure 1 The injection molded plate 100 provided in an embodiment of the present invention is applied to a stepper motor. The injection molded plate 100 includes a pole ring 110. A plurality of pole claws 120 bent to one side are arranged at intervals along the circumferential direction on the inner side of the pole ring 110. A glue hole 111 is provided on the pole ring 110. A PIN needle position groove 112 and a positioning string 113 are provided on the pole ring 110.

[0043] In a specific embodiment, taking the 42 stepper motor injection molded body assembly 200 of silicon steel sheet encapsulated with rubber as an example, the 42 stepper motor injection molded body assembly 200 includes four injection molded body plates 100, and the injection molded body plate 100 includes a pole ring 110, and the inner side of the pole ring 110 is provided with twelve pole claws 120 bent to one side along the circumferential direction, and eight glue holes 111 are provided on the pole ring 110, and a PIN needle position groove 112 and a positioning string 113 are provided on the pole ring 110. The PIN needle position groove 112 and the positioning string 113 are respectively located at two ends of the same diameter of the pole ring 110. Of course, it can be understood that the PIN needle position groove 112 and the positioning string 113 can also be respectively located at other positions of the pole ring 110, as long as they can be positioned and placed by the positioning string 113, the pole claws 120 of the two opposite injection molded body plates 100 can be relatively staggered.

[0044] Embodiment 2

[0045] The embodiment of the present invention provides an injection molded body assembly 200, which can use four injection molded body plates 100 of the same shape as provided in the first embodiment to complete injection molding, thereby avoiding the problem of material mixing when operators put the materials into the mold.

[0046] See also Figure 2 and Figure 3 An embodiment of the present invention provides an injection molded body component 200, which includes four injection molded body plates 100 as provided in the above-mentioned embodiment 1. The four injection molded body plates 100 are arranged opposite to each other in pairs, and the pole claws 120 of the two opposite injection molded body plates 100 are arranged oppositely and staggered.

[0047] Embodiment 3

[0048] The embodiment of the present invention provides an injection mold 300, which can perform injection molding on the injection molded body component 200 provided in the above-mentioned second embodiment, thereby avoiding the problem of material mixing when the operator puts the material into the mold.

[0049] See also Figure 4 and Figure 8The embodiment of the present invention further provides an injection mold 300, which is applied to the injection assembly 200 as described above. The injection mold 300 includes an injection molding base 310 and an injection molding body 210 jig. The injection molding body 210 jig includes two jig plates 331 stacked up and down. The jig plates 331 are provided with positioning holes 332. The jig plates 331 are provided with positioning grooves 333 on both end surfaces of the positioning holes 332. The pole ring 110 can be positioned in the positioning groove 333 through its positioning chord 113. After the injection molding body assembly 200 is placed, the injection molding body 210 jig can cooperate with the injection molding base 310 to perform injection molding on the injection molding body assembly 200.

[0050] The injection molding assembly 200 includes four injection molding plates 100 of the same shape, the four injection molding plates 100 are arranged opposite to each other in pairs, and the pole claws 120 of the two opposite injection molding plates 100 are arranged oppositely and staggered, and the injection molding body 210 is cast between the four plastic body plates. When the injection molding mold 300 provided by the present application is used to make the injection molding assembly 200, the pole ring 110 can be positioned and placed in the positioning groove 333 through its positioning chord 113. Since each pole ring 110 is positioned and placed at a different angle in the positioning groove 333, the four injection molding plates 100 positioned and placed on the injection molding body 210 jig are arranged opposite to each other in pairs, and the pole claws 120 of the two opposite injection molding plates 100 are arranged oppositely and staggered, and then, the injection molding body 210 jig on which the injection molding body plates 100 are placed can cooperate with the injection molding base 310 to cast between the injection molding body plates 100 to form the injection molding body 210.

[0051] The injection molding assembly 200 provided in the embodiment of the present invention uses four injection molding plates 100 of the same shape, thereby avoiding the problem of material mixing when the operator puts the materials into the mold, and can complete the casting between the injection molding plates 100 to form the injection molding 210 through the injection molding mold 300 provided in the embodiment of the present invention.

[0052] The injection mold 300 provided in the embodiment of the present invention is specifically referred to in Figure 5 , Figure 6 and Figure 7Each layer of the jig plate 331 includes two positioning plates 334, and the two positioning plates 334 are spliced ​​to form a positioning hole 332 and a positioning groove 333. The two positioning plates 334 of each layer of the jig plate 331 are connected and assembled by connecting pins. In this embodiment, a first positioning groove 333a is provided on the lower surface of the first-layer jig plate 331a, and the pole ring 110 of the first injection-molded pole plate 100a of the four injection-molded pole plates 100 is positioned and placed in the first positioning groove 333a through its positioning string 113, and the pole claw 120 of the first injection-molded pole plate 100a is bent into the positioning hole 332 of the first-layer jig plate 331a. A second positioning groove 333b is provided on the upper surface of the first-layer jig plate 331a, and the pole ring 110 of the second injection-molded pole plate 100b of the four injection-molded pole plates 100 is positioned and placed in the second positioning groove 333b through its positioning string 113, and the pole claw 120 of the second injection-molded pole plate 100b is bent into the positioning hole 332 of the first-layer jig plate 331a, and the pole claw 120 of the first injection-molded pole plate 100a and the second injection-molded pole plate 100b are bent into the positioning hole 332 of the first-layer jig plate 331a. The pole claws 120 of the third injection-molded body plate 100c of the four injection-molded body plates 100 are arranged in a staggered manner. The pole ring 110 of the third injection-molded body plate 100c is also positioned in the second positioning groove 333b through its positioning string 113, and the pole claws 120 of the third injection-molded body plate 100c are bent into the positioning holes 332 of the second-layer fixture plate 331b. The upper surface of the second-layer fixture plate 331b is provided with a third positioning groove 333c. The pole ring 110 of the fourth injection-molded pole plate 100d among the four injection-molded pole plates 100 is positioned in the third positioning groove 333c through its positioning chord 113, and the pole claw 120 of the fourth injection-molded pole plate 100d is bent into the positioning hole 332 of the second layer of the fixture plate 331b, and the pole claw 120 of the third injection-molded pole plate 100c and the pole claw 120 of the fourth injection-molded pole plate 100d are relatively staggered.

[0053] The injection mold 300 provided in the embodiment of the present invention is further described in detail. Figure 8 , both sides of the positioning plate 334 on the injection molding base 310 along the first direction are provided with a first positioning mechanism, and both sides of the positioning plate 334 on the injection molding base 310 along the second direction are provided with a second positioning mechanism, and the first positioning mechanism and the second positioning mechanism cooperate to position the positioning plate 334 on the injection molding base 310. The injection molding body 210 jig after placing the injection molding body plate 100 can be positioned and placed on the injection molding base 310 through the cooperation of the first positioning mechanism and the second positioning mechanism, and the first positioning mechanism and the second positioning mechanism cooperate to position the positioning plate 334 on the injection molding base 310, so that the injection molding body 210 jig can cooperate with the injection molding base 310 to form an injection molding cavity, which is convenient for injection molding the injection molding cavity to cast between the injection molding body plates 100 to form the injection molding body 210.

[0054] The side wall of the positioning plate 334 along the splicing direction is inclined, and the first positioning mechanism includes a first positioning block 311, which can be positioned and abutted with the side wall of the positioning plate 334 along the splicing direction. In this embodiment, the two positioning plates 334 of each layer of the jig plate 331 form a concave V-shaped structure on the side wall in the splicing direction, and the side wall of the first positioning block 311 that can be positioned and abutted with the two positioning plates 334 is a convex V-shaped structure, and the concave V-shaped structure can cooperate with the convex V-shaped structure to abut each other. This structure can simultaneously position the two positioning plates 334 of each layer of the jig plate 331.

[0055] The second positioning mechanism includes a second positioning block 312 and an abutment block 313. The second positioning block 312 can be positioned and abutted with the side wall of the positioning plate 334, and the abutment block 313 abuts against the side of the second positioning block 312 away from the positioning plate 334. When the positioning plate 334 is positioned and placed on the injection molding base 310, the first positioning block 311 can be positioned and abutted with the side wall of the positioning plate 334 along the splicing direction, and the second positioning block 312 can be positioned and abutted with the side wall of the positioning plate 334. The first positioning block 311 and the second positioning block 312 work together to position the positioning plate 334, so that the injection molding jig 210 can cooperate with the injection molding base 310 to form an injection molding cavity, which is convenient for injection molding the injection molding cavity to cast between the injection molding body plates 100 to form the injection molding body 210.

[0056] The injection mold 300 provided in the embodiment of the present invention is specifically referred to in Figure 4 , Figure 8 , Fig. 9 and Fig.10 The injection molding base 310 includes an injection molding substrate 314, an injection molding plate 315 and a pressing plate 316. The injection molding body 210 jig after placing the injection molding body plate 100 can be positioned on the injection molding substrate 314, the injection molding plate 315 is placed on the injection molding body 210 jig, and the pressing plate 316 can press the injection molding plate 315 and the injection molding body 210 jig onto the injection molding substrate 314. An injection molding channel 317 is opened on the injection molding plate 315, and an injection molding connector 318 is installed on the injection molding plate 315. The injection molding material can be drained to the injection molding channel 317 through the injection molding connector 318 to inject the injection molding body component 200. The pressing plate 316 can press the injection plate 315 and the injection body 210 jig onto the injection base plate 314, thereby ensuring that the injection channel 317 can receive the injection material entering from the injection connector 318 and guide the injection material to the injection channel 317 to inject the injection body assembly 200.

[0057] In this embodiment, two injection positions are provided on the injection molding jig 210, and two injection molding body components 200 can be injection molded at the same time. A material receiving groove 324 is provided at the center position of the upper surface of the injection molding plate 315, and the material receiving groove 324 can receive the injection molding material entering from the injection molding joint 318. The material receiving groove 324 is connected to the upper surface of the injection molding plate 315 through the first injection molding channel 317a to the center of the positioning hole 332 of the jig plate 331, and then through a plurality of radial second injection molding channels 317b. A discharge hole 325 is provided at the end of the second injection molding channel 317b, and the injection molding material can be discharged from the discharge hole 325 to the injection molding cavity. In this embodiment, the pressure plate 316 can be fixedly installed on the injection molding substrate 314 by bolts, and the injection molding pins 323 are installed on the injection molding substrate 314. When the injection molding body 210 jig with the injection molding body plate 100 is placed on the injection molding base 310 through the cooperation of the first positioning mechanism and the second positioning mechanism, the injection molding pins 323 can extend into the positioning hole 332 of the injection molding body 210 jig to limit and shape the injection molding body 210 in the positioning hole 332.

[0058] The injection mold 300 provided in the embodiment of the present invention is specifically described in conjunction with Fig.11 A mounting groove 319 is provided on the pressing plate 316, and the injection molding joint 318 is positioned in the mounting groove 319 through the injection molding positioning block 320. The injection molding base 310 also includes a cover plate 321 and a panel 322. The cover plate 321 is covered on the pressing plate 316 to limit the injection molding positioning block 320 in the mounting groove 319. The panel 322 is covered on the cover plate 321, and the injection molding joint 318 can pass through the cover plate 321 and the panel 322. The injection molding positioning block 320 can be positioned in the mounting groove 319, and the injection molding joint 318 can be positioned on the injection molding positioning block 320. The injection molding positioning block 320 can position the injection molding joint 318 so that the injection molding joint 318 can guide the injection molding material to the injection molding channel 317 to inject the injection molding body component 200. The cover plate 321 is covered on the pressure plate 316 to limit the injection molding positioning block 320 in the mounting groove 319. In this embodiment, the injection molding positioning block 320, the cover plate 321 and the panel 322 are all provided with a feed hole 326 that can directly feed the injection molding material to the feed hole 325.

[0059] Embodiment 4

[0060] The embodiment of the present invention provides a stepper motor, which includes an injection molded body component 200 formed by injection molding using the injection mold 300 provided in the above-mentioned embodiment 3. The specific structure of the injection molded body component 200 refers to the above-mentioned embodiment 2. Since the stepper motor adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0062] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. An injection molded plate, used in a stepper motor, characterized in that: The injection molded electrode plate comprises an electrode ring, a plurality of electrode claws bent to one side are arranged at intervals along the circumferential direction on the inner side of the electrode ring, a glue hole is arranged on the electrode ring, and a PIN needle position groove and a positioning string are arranged on the electrode ring.

2. An injection molded body component, characterized in that: The injection molded body assembly comprises four injection molded body plates as claimed in claim 1, the four injection molded body plates are arranged opposite to each other in pairs, and the pole claws of two opposite injection molded body plates are arranged oppositely and staggered, and the injection molded body is cast between the four injection molded body plates.

3. An injection mold, applied to the injection molded component according to claim 2, characterized in that: The injection molding mold includes an injection molding base and an injection molding jig. The injection molding jig includes two layers of jig plates stacked up and down. The jig plate is provided with a positioning hole. The jig plate is provided with positioning grooves on both end surfaces of the positioning hole. The pole piece ring can be positioned in the positioning groove through its positioning chord. The injection molding jig after positioning and placing the injection molding body pole plate can cooperate with the injection molding base to cast between the injection molding body pole plates to form an injection molding body.

4. The injection mold according to claim 3, characterized in that: Each layer of the jig plate includes two positioning plates, and the two positioning plates can be spliced ​​to form the positioning hole and the positioning groove.

5. The injection mold according to claim 4, characterized in that: The injection molding base is provided with a first positioning mechanism on both sides of the positioning plate along the first direction, and the injection molding base is provided with a second positioning mechanism on both sides of the positioning plate along the second direction. The first positioning mechanism and the second positioning mechanism cooperate to position the positioning plate on the injection molding base.

6. The injection mold according to claim 5, characterized in that: The side wall of the positioning plate along the splicing direction is arranged obliquely, and the first positioning mechanism includes a first positioning block, and the first positioning block can be inclinedly positioned and abutted with the side wall of the positioning plate along the splicing direction.

7. The injection mold according to claim 5, characterized in that: The second positioning mechanism includes a second positioning block and an abutment block. The second positioning block can be positioned and abutted against a side wall of the positioning plate. The abutment block abuts against a side of the second positioning block away from the positioning plate.

8. The injection mold according to claim 3, characterized in that: The injection molding base includes an injection molding substrate, an injection molding plate and a pressure plate. The injection molding body jig with the injection molding body plate placed thereon can be positioned on the injection molding substrate. The injection molding plate is placed on the injection molding body jig. The pressure plate can press the injection molding plate and the injection molding body jig onto the injection molding substrate. An injection molding channel is provided on the injection molding plate. An injection molding joint is installed on the injection molding plate. The injection molding material can be drained to the injection molding channel through the injection molding joint to perform injection molding on the injection molding body component.

9. The injection mold according to claim 8, characterized in that: The pressure plate is provided with a positioning groove, and the injection molding joint is positioned in the positioning groove by an injection molding positioning block. The injection molding base also includes a cover plate and a panel. The cover plate is arranged on the pressure plate to limit the injection molding positioning block in the positioning groove, and the panel cover is arranged on the cover plate. The injection molding joint can pass through the cover plate and the panel.

10. A stepping motor, characterized in that: The stepper motor includes an injection-molded body component formed by injection molding using the injection-molded body mold according to any one of claims 3 to 9.

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