CN204258584U - A kind of PM type stepping motor injection moulding rotor - Google Patents
A kind of PM type stepping motor injection moulding rotor Download PDFInfo
- Publication number
- CN204258584U CN204258584U CN201420745378.XU CN201420745378U CN204258584U CN 204258584 U CN204258584 U CN 204258584U CN 201420745378 U CN201420745378 U CN 201420745378U CN 204258584 U CN204258584 U CN 204258584U
- Authority
- CN
- China
- Prior art keywords
- magnetite frame
- axle
- injection moulding
- stepping motor
- type stepping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a kind of PM type stepping motor injection moulding rotor, comprise axle, magnetite frame, magnetic material layer and injection structure, described magnetite frame cover on the shaft, described magnetite frame is injection molded into one by injection structure and described magnetic material layer, and described magnetite frame internal diameter adopts interference fit to be connected with described axle.Compared with prior art, the utility model has that reliability is high, production efficiency is high and the advantage such as low cost of manufacture.
Description
Technical field
The utility model relates to a kind of injection moulding rotor, especially relates to a kind of PM type stepping motor injection moulding rotor.
Background technology
The way of PM type stepping motor injection moulding rotor prior art generally has 2 kinds, the first way is annular knurl (as Fig. 1) or process a bit of groove (as Fig. 2) on axle 1 on axle 1, together with finally axle being injection-moulded in injected plastics material 3, magnetic material 2 (as Fig. 3): the second way overlaps the upper annular knurl (as Fig. 4) of 4 (or copper sheathings) at aluminium, then axial compression is entered aluminium cover 4 (or copper sheathings) upper (as Fig. 5), last and magnetic material integrated through injection molding (as Fig. 6).
The defect that prior art exists has:
The first way:
1. owing to processing annular knurl (or groove) on axle, cause the production efficiency of axle low, hand over the problem that the phase is long and cost is high.
2. because processing annular knurl (or groove) is by spatial limitation, little with injected plastics material bonded area, cause the adhesion of axle and injection molding material inadequate.
3., in technique, hardness and processing annular knurl (or groove) of axle require higher, as management and control is bad, easily cause the generation of axle fracture.
The second way:
1. because aluminium cover (or copper sheathing) is metal processing piece, there will be production efficiency low, hand over the problem that the phase is long and cost is high.
2. on axle, be pressed into aluminium cover (or copper sheathing), be finally injection molded into integration, this technique is difficult to realize automation.
Utility model content
The purpose of this utility model is exactly provide that a kind of reliability is high, production efficiency is high and the PM type stepping motor injection moulding rotor of low cost of manufacture to overcome defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of PM type stepping motor injection moulding rotor, comprise axle, magnetite frame, magnetic material layer and injection structure, described magnetite frame cover on the shaft, it is characterized in that, described magnetite frame is injection molded into one by injection structure and described magnetic material layer, and described magnetite frame internal diameter adopts interference fit to be connected with described axle.
Described magnetite frame is boss structure, and this boss structure center is provided with wears for axle the circular hole penetrated.
Described boss base excircle is provided with at least 2 anti-rotation draw-in grooves.
The anti-rotation draw-in groove number of described magnetite frame is 4.
Described magnetite frame adopts progressive die mode to produce.
Compared with prior art, the utility model has the following advantages:
1, magnetite frame progressive die is produced, the consistency of product, stability and economy are well improved, and magnetite frame periphery adopts anti-rotation draw-in groove, effectively can ensure the adhesion of axle and plastic material, adopt axle and magnetite frame interference fit simultaneously, guarantee the adhesion of axle and injection molding material.
2, compared with the 1st kind of way, well can avoid the hidden danger brought because of annular knurl (or groove) technique, as off-axis, the inadequate problem of adhesion, reduce to technique according to patience, improve the reliability of injection moulding rotor.
3, compared with the 2nd kind of way, reduce in the upper annular knurl technique of aluminium cover (or copper sheathing), avoid the restriction of injection moulding internal rotor space structure, avoid the various hidden danger that annular knurl technique is brought, and production efficiency is high, processing cost is low can realize automation preferably.
4, magnetite frame is mold members, and than processing annular knurl (or groove) or short in the cycle of aluminium cover (or copper sheathing) upper annular knurl buying on axle, highly versatile, cost is low.
Accompanying drawing explanation
Fig. 1 is annular knurl schematic diagram on axle;
Fig. 2 is axle upper groove schematic diagram;
Fig. 3 be together with band groove axle is injection-moulded in magnetic material after schematic diagram;
Fig. 4 is the schematic diagram of annular knurl on aluminium cover or copper sheathing;
Fig. 5 is the schematic diagram that axial compression enters on aluminium cover or copper sheathing;
Fig. 6 be axial compression enter after aluminium cover or copper sheathing with the schematic diagram of magnetic material integrated through injection molding;
Fig. 7 is the utility model magnetite shelf structure schematic diagram;
Fig. 8 is the structural representation that the utility model axial compression enters magnetite frame
Fig. 9 be the utility model axial compression enter after magnetite frame with magnetic material injection moulding all-in-one-piece schematic diagram;
Figure 10 is the position view of the utility model injection moulding rotor in PM type stepping motor.
Wherein A is annular knurl, and B is groove, and 1 is axle, and 2 is magnetic material, 3 is injected plastics material, and 4 is aluminium cover or copper sheathing, and 5 is magnetite frame, and 6 is panel, 7 is bearing, and 8 is pad, and 9 is enamelled wire, and 10 is glue core, 11 is contact pin, and 12 is wire harness, and 13 is line lid, and 14 is casing, 15 is top panel, and 16 is pad, and 17 is gear, 18 is injection moulding rotor, and 19 is bearing, and 20 is sleeve assembly.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
As Figure 7-9, a kind of PM type stepping motor injection moulding rotor, comprise axle 1, magnetite frame 5, magnetic material layer 2 and injection structure 3, magnetite frame 5 fixed cover is on axle 1, described magnetite frame 5 is injection molded into one by injection structure 3 and described magnetic material layer 2, and described magnetite frame 5 internal diameter adopts interference fit to be connected with described axle 1.
Described magnetite frame 5 is boss structure, and this boss structure center is provided with wears for axle the circular hole penetrated.
The manufacture method of the utility model PM type stepping motor injection moulding rotor, comprises
1) utilize the magnetite frame 5 of Mould Machining boss structure, this magnetite frame 5 is provided with central through hole and is provided with draw-in groove at boss base excircle;
2) axial compression is entered in the frame of magnetite described in step 1, and be connected with magnetite frame internal diameter interference fit;
3) the magnetite frame pressed and magnetic material layer are injection molded into one.
As described in Figure 10, a kind of PM type stepping motor, comprises panel 6, bearing 7, pad 8, enamelled wire 9, glue core 10, contact pin 11, wire harness 12, line lid 13, casing 14, top panel 15, pad 16, gear 17, injection moulding rotor 18, bearing 19, sleeve assembly 20.Described injection moulding rotor 18 is above-mentioned injection moulding rotor.
Claims (4)
1. a PM type stepping motor injection moulding rotor, comprise axle, magnetite frame, magnetic material layer and injection structure, described magnetite frame cover on the shaft, it is characterized in that, described magnetite frame is injection molded into one by injection structure and described magnetic material layer, and described magnetite frame internal diameter adopts interference fit to be connected with described axle.
2. a kind of PM type stepping motor injection moulding rotor according to claim 1, it is characterized in that, described magnetite frame is boss structure, and this boss structure center is provided with wears for axle the circular hole penetrated.
3. a kind of PM type stepping motor injection moulding rotor according to claim 2, it is characterized in that, described boss base excircle is provided with at least 2 anti-rotation draw-in grooves.
4. a kind of PM type stepping motor injection moulding rotor according to claim 3, it is characterized in that, the anti-rotation draw-in groove number of described magnetite frame is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420745378.XU CN204258584U (en) | 2014-12-02 | 2014-12-02 | A kind of PM type stepping motor injection moulding rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420745378.XU CN204258584U (en) | 2014-12-02 | 2014-12-02 | A kind of PM type stepping motor injection moulding rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204258584U true CN204258584U (en) | 2015-04-08 |
Family
ID=52962847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420745378.XU Active CN204258584U (en) | 2014-12-02 | 2014-12-02 | A kind of PM type stepping motor injection moulding rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204258584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720780A (en) * | 2014-12-02 | 2016-06-29 | 上海鸣志电器股份有限公司 | PM stepper motor injection-molded rotor and manufacturing method thereof |
-
2014
- 2014-12-02 CN CN201420745378.XU patent/CN204258584U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720780A (en) * | 2014-12-02 | 2016-06-29 | 上海鸣志电器股份有限公司 | PM stepper motor injection-molded rotor and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203883562U (en) | Stator core, stator and motor | |
| CN204258584U (en) | A kind of PM type stepping motor injection moulding rotor | |
| CN203313005U (en) | Motor stator winding end portion sizing die | |
| CN204517528U (en) | A kind of direct current variable frequency motor rotor of freezer compressor | |
| CN202357365U (en) | Injection mould | |
| CN205105010U (en) | Electric machine | |
| CN202713004U (en) | Rotor of permanent magnet | |
| CN105720780A (en) | PM stepper motor injection-molded rotor and manufacturing method thereof | |
| CN201781350U (en) | Stator iron core lateral surface insulating frame | |
| CN203933290U (en) | The erecting device of motor shaft pin | |
| CN102610981A (en) | Positioning and press-fit composite die | |
| CN202062597U (en) | Slide block mechanism | |
| CN202727180U (en) | Elbow pipe evanescent molding core | |
| CN202772742U (en) | Integrated device for integral plastic packaging of motor | |
| CN204497872U (en) | A kind of rotor | |
| CN204652064U (en) | Explosion-proof electric machine stator | |
| CN201409077Y (en) | Step linear motor | |
| CN201038835Y (en) | A generator stator and end cover location machine | |
| CN204190591U (en) | Step-by-step linear electric motor | |
| CN203645009U (en) | Injection molding structure for inner module of data transmission line connector | |
| CN204030774U (en) | The operator guards of wiring pin | |
| CN201781341U (en) | Insulation frame for stator core peripheral surface | |
| CN201661577U (en) | Thread sleeve | |
| CN102013771B (en) | Orientation magnetic field in plastic magnetic rotor mould | |
| CN203484491U (en) | Punching die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |