CN202984557U - Composite forging die for claw pole of automotive alternator - Google Patents
Composite forging die for claw pole of automotive alternator Download PDFInfo
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- CN202984557U CN202984557U CN 201220696668 CN201220696668U CN202984557U CN 202984557 U CN202984557 U CN 202984557U CN 201220696668 CN201220696668 CN 201220696668 CN 201220696668 U CN201220696668 U CN 201220696668U CN 202984557 U CN202984557 U CN 202984557U
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- claw pole
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Abstract
The utility model provides a composite forging die for a claw pole of an automotive alternator. The composite forging die comprises an upper die and a lower die that are matched with each other, wherein the upper die and the lower die are fixed on an upper die base and a lower die base respectively; a sunk cavity A is arranged at the top of the lower die; the shape of the cavity A is matched with that of an end cover of the claw pole; the depth of the cavity A is greater than the thickness of the end cover; a boss is arranged in the center of the bottom surface of the upper die; the height of the boss is less than the depth of the cavity A; the shape of the boss is matched with that of the cavity A; a cavity B is arranged on the boss and extends upwards into the upper die; the shape of the cavity B is matched with a claw part of the claw pole; the upper die can move downwards to be contacted with the lower die under the action of a press; and the boss is located in the cavity A under the action of the press and forms closed forging with the cavity A. The die combines open forging and the closed forging, and can forge the satisfactory claw pole of the automotive alternator at one time.
Description
Technical field
The utility model provides a kind of mould that forges automobile generator claw pole, is specially the mould that a kind of combined type is forged automobile generator claw pole,
Background technology
Automobile current generator is the main power source of automobile, and its function is when normal working of engine, to all consumer power supplies, simultaneously to charge in batteries.And most important parts surely belong to rotor in automobile current generator, and the function of automobile generator rotor is to produce rotating excitation field.Rotor generally is comprised of the pawl utmost point, yoke, magnetic field winding, collector ring, armature spindle, is press-fiting two pawl utmost points on armature spindle, and two pawl utmost points respectively have six beak shape magnetic poles, and magnetic field winding (rotor coil) and yoke are housed in pawl utmost point cavity.Therefore automobile generator claw pole is precise part, to the having relatively high expectations of its forging product, mostly adopts open type to forge for the forging of the pawl utmost point at present, also has some producers to adopt closed-die forgings, and open type is forged and closed-die forging respectively has its pluses and minuses.Its middle open type forges is convenient to the claw moulding, can guarantee the pawl molded dimension, but after it forges, overlap is thicker, especially inner 6R position, and thicker overlap affects following process and capability and performance; And closed-die forging non-trimming or overlap are seldom, are convenient to interior outer face forging molding, but but can not guarantee the dimensional accuracy of six utmost point pawl magnetic chamferings.Also have at present part producer in order to guarantee the quality of product, forging is divided into twice carries out, complete the forging of product by forge hot-warm extrusion or two steps of forge hot-cold-extruded, but this forging method working (machining) efficiency is lower, energy consumption is higher simultaneously.
Summary of the invention
In order to solve the deficiency in the above-mentioned background technology, the utility model provides a kind of composite automobile generator claw pole forging mold, this mould has solved the deficiency in the background technology, and open type is forged for it and closed-die forging combines, and can disposablely forge satisfactory automobile generator claw pole.
Realize that the technical scheme that the utility model above-mentioned purpose adopts is:
A kind of composite automobile generator claw pole forging mold is comprised of the upper die and lower die of mutual coupling, and wherein upper die and lower die are separately fixed on upper bolster and die shoe; The top of described counterdie is provided with the die cavity A of depression, and the end cap profile of described die cavity A and the pawl utmost point is complementary, and the degree of depth of described die cavity A is greater than the thickness of end cap; The center of the bottom surface of described patrix is provided with boss, the height of described boss is less than the degree of depth of die cavity A, and the profile of boss and die cavity A are complementary, and described boss is provided with die cavity B, described die cavity B extends to the inside of patrix up, and the claw of its shape and the pawl utmost point is complementary; Patrix can move to down with counterdie under the effect of forcing press and contact, this moment boss be positioned at die cavity A under the effect of forcing press, and and die cavity A between form closed-die forging.
Contact-making surface when patrix contacts with counterdie is provided with the gap, and described gap is communicated with die cavity B.
The large 2-5mm of ending cover thickness of the depth ratio pawl utmost point of described die cavity A.
The height of described boss is 2-5mm.
In the technical scheme that the utility model provides, the bottom of patrix is provided with boss, when forging, boss is positioned at die cavity A under the effect of forcing press, form closed-die forging between boss and die cavity A, therefore die cavity A is when forging the end cap of the pawl utmost point, and the overlap at the circular arc place of the interior outer face of end cap and end cap is very thin, and the turning processing that is easy in subsequent step is carried out.Simultaneously, be provided with the gap that is communicated with die cavity B on the contact-making surface of upper die and lower die when forging, the forging of claw is that open type is forged, and the claw moulding is easy, and can guarantee the pawl molded dimension simultaneously.The mould that adopts the utility model to provide forges, and blank can disposable forging molding after heating.
Description of drawings
Fig. 1 is the structural representation of patrix;
Fig. 2 is the structural representation of counterdie;
The overall structure schematic diagram of the mould that Fig. 3 provides for the utility model;
In figure: 1-patrix, 2-counterdie, 3-die cavity A, 4-die cavity B, 5-boss, 6-gap.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed specific description.
The composite automobile generator claw pole forging mold that provides in the utility model is comprised of patrix 1 and the counterdie 2 of mutual coupling, and patrix 1 and counterdie 2 are separately fixed on upper bolster and die shoe.Wherein the structure of counterdie 2 as shown in Figure 2, the top of counterdie 2 is provided with the die cavity A3 of depression, the end cap profile of described die cavity A3 and the pawl utmost point is complementary, the degree of depth of described die cavity A3 is greater than the thickness of end cap; The large 2-5mm of ending cover thickness of the depth ratio pawl utmost point of die cavity A3 in the present embodiment.The structure of patrix 1 as shown in Figure 1, the center of the bottom surface of patrix 1 is provided with boss 5, the height of described boss 5 is less than the degree of depth of die cavity A3, the height of boss 5 is 2-5mm in the present embodiment, the profile of described boss 5 and die cavity A3 are complementary, described boss 5 is provided with die cavity B4, and described die cavity B4 extends to the inside of patrix 1 up, and the claw of its shape and the pawl utmost point is complementary.
After being arranged on patrix 1 and counterdie 2 on forcing press, patrix 1 moves to down under the effect of forcing press with counterdie 2 and contacts, and as shown in Figure 3, this moment, boss 5 was positioned at die cavity A3 under the effect of forcing press, and and die cavity A3 between form closed-die forging; And the contact-making surface of patrix 1 when contacting with counterdie 2 is provided with gap 6, and described gap 6 is communicated with die cavity B4, forges thereby form open type.
When the mould that adopts the utility model to provide forges, only need blank is heated to 1000-1100 ℃ with intermediate-frequency heating furnace, then blank is positioned on counterdie and suppresses with forcing press, get final product forging molding one time.
Claims (4)
1. composite automobile generator claw pole forging mold, it is characterized in that: the upper die and lower die by mutual coupling form, and wherein upper die and lower die are separately fixed on upper bolster and die shoe; The top of described counterdie is provided with the die cavity A of depression, and the end cap profile of described die cavity A and the pawl utmost point is complementary, and the degree of depth of described die cavity A is greater than the thickness of end cap; The center of the bottom surface of described patrix is provided with boss, the height of described boss is less than the degree of depth of die cavity A, and the profile of boss and die cavity A are complementary, and described boss is provided with die cavity B, described die cavity B extends to the inside of patrix up, and the claw of its shape and the pawl utmost point is complementary; Patrix can move to down with counterdie under the effect of forcing press and contact, this moment boss be positioned at die cavity A under the effect of forcing press, and and die cavity A between form closed-die forging.
2. composite automobile generator claw pole forging mold according to claim 1, it is characterized in that: the contact-making surface when patrix contacts with counterdie is provided with the gap, and described gap is communicated with die cavity B.
3. composite automobile generator claw pole forging mold according to claim 1, is characterized in that: the large 2-5mm of ending cover thickness of the depth ratio pawl utmost point of described die cavity A.
4. composite automobile generator claw pole forging mold according to claim 1, it is characterized in that: the height of described boss is 2-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696668 CN202984557U (en) | 2012-12-14 | 2012-12-14 | Composite forging die for claw pole of automotive alternator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696668 CN202984557U (en) | 2012-12-14 | 2012-12-14 | Composite forging die for claw pole of automotive alternator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202984557U true CN202984557U (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220696668 Expired - Fee Related CN202984557U (en) | 2012-12-14 | 2012-12-14 | Composite forging die for claw pole of automotive alternator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202984557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938312A (en) * | 2017-01-19 | 2017-07-11 | 安徽铖友汽车零部件制造有限公司 | Auto parts and components forging mold component |
-
2012
- 2012-12-14 CN CN 201220696668 patent/CN202984557U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938312A (en) * | 2017-01-19 | 2017-07-11 | 安徽铖友汽车零部件制造有限公司 | Auto parts and components forging mold component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MACHENG BOLIN ELECTROMECHANICAL CO., LTD. Free format text: FORMER NAME: MACHENG BOLIN ELECTROMECHANICAL LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 438300 goods yard Road, Macheng Economic Development Zone, Huanggang, Hubei Patentee after: MACHENG BOLIN ELECTROMECHANICAL CO., LTD. Address before: 438300 goods yard Road, Macheng Economic Development Zone, Huanggang, Hubei Patentee before: Macheng Bolin Electromechanical Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20151214 |
|
| EXPY | Termination of patent right or utility model |