CN201079808Y - Combined blanking die - Google Patents
Combined blanking die Download PDFInfo
- Publication number
- CN201079808Y CN201079808Y CNU2007201048253U CN200720104825U CN201079808Y CN 201079808 Y CN201079808 Y CN 201079808Y CN U2007201048253 U CNU2007201048253 U CN U2007201048253U CN 200720104825 U CN200720104825 U CN 200720104825U CN 201079808 Y CN201079808 Y CN 201079808Y
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- CN
- China
- Prior art keywords
- cutting edge
- internal mold
- groove
- edge groove
- mold
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- Expired - Fee Related
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model provides a combined type blanking die which is characterized in that the blanking die is formed by combining an internal mold which is provided with a cutting edge groove and an external mold of an insert cavity die which is provided with the cutting edge groove. The utility model can conveniently utilize a linear cutting machine with high precision to process the cutting edge groove of the internal mold and the cutting edge groove of the insert cavity die, not only the processing speed is improved, but also the machining precision and the quality are ensured, in particular, the internal mold and the external mold are in interference fit, so that in the blanking process, the outward radial expansive force acted on the cutting edge of an inserted line groove of the internal mold cancel each other out with the prestressing force of the external mold, and the cutting edge of the inserted line groove of the internal mold can be effectively protected to not burst caused by the expansive force, thereby prolonging the service life of a press tool, large quantities of processed stator and rotor sheets of electromotors completely meet the requirement for the mass production of the electromotors. The utility model has simple structure, easy process, long service life, low cost, high percent of pass for punched sheets and outstanding comprehensive property.
Description
Technical field
The utility model relates to a kind of blanking die, especially a kind ofly produces the diel that motor stator has changeed punching.
Background technology
In motor was produced, the rotor punching was its important part, and enormous amount.The motor stator rotor punching obtains by diel, so the structure of diel and performance, directly affects the quality and the production efficiency of motor stator rotor punching.Determining the cost of punching the service life of diel, for the batch that guarantees motor produces, require the jig frequency (promptly using the life-span) of diel must reach hundreds thousand of times, even tens million of times, to produce the punching of sufficient amount, adapt to the production in enormous quantities of motor.But because the diel of existing average-sized motor rotor punching is assembled by the piece of its single both sides band groove, mould as punching press 42 groove punchings is assembled by the piece of 42 both sides band grooves, the mould of punching press 72 groove punchings is assembled by the piece of 72 both sides band grooves, and the processing of the piece of each band groove needs technical very strong form grinding processing, whole process is long, also higher processing precision must be reached, the requirement of assembly unit quality could be satisfied.More than the such Mold Making that hence one can see that, its operation, the height of required precision, the length of process-cycle, the height of cost is that modern high efficiency enterprise is difficult to accept.Therefore, must be improved prior art.
Summary of the invention
For the process-cycle that the diel that overcomes existing motor stator rotor punching exists long, the required precision height, the high deficiency of work time cost, the utility model provides a kind of to be convenient to process, the combined blanking mould of time saving and energy saving, high efficiency, quality assurance.
The utility model is realized by following technical proposal: a kind of combined blanking mould is characterized in that it is combined by the internal mold of band cutting edge groove on it and the external mold which is provided with the inserts die of band cutting edge groove.
Described internal mold is as a whole, and a plurality of cutting edge grooves that distribute on it are line embedding groove, can directly process the cutting edge groove with high-accuracy wire cutting machine tool, both increase work efficiency, and can guarantee machining accuracy again.
A cutting edge groove on the described inserts die is the cramp groove, with high-accuracy wire cutting machine tool the cutting edge groove is processed, and each inserts die embeds in the hole of external mold correspondence at interval.
The internal mold of described band cutting edge groove adopts the alloy tool steel of high rigidity to manufacture with the inserts die of band cutting edge groove, with further raising their service life.
Be combined into interference fit between described internal mold and the external mold, so that in the stamping-out process, make the outside mutual balance of the prestressing force that radially supports tension and external mold that acts on internal mold line embedding groove cutting edge, thereby the protection internal mold do not break because of the support tension.
The utility model compared with prior art has following advantage and effect: adopt such scheme; can utilize high-accuracy wire cutting machine tool easily; internal mold cutting edge groove and inserts cutting edge of die groove are processed; both improved process velocity; machining accuracy and quality have been guaranteed again; especially the interference fit between internal mold and the external mold; make in the stamping-out process; the outside prestressing force that radially supports tension and external mold that acts on internal mold line embedding groove cutting edge offsets mutually, effectively protects internal mold line embedding groove cutting edge not break because of the support tension, thereby prolongs the service life of diel; the motor stator rotor punching in enormous quantities that processes; satisfied the motor batch production requirement fully, the utility model is simple in structure, easily processing; long service life; cost is low, the punching qualification rate height that punching out goes out, and combination property is outstanding.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
On the internal mold 1 of high hardness alloy tool steel Cr12 (HRC60～64), process cutting edge groove 2 with high-accuracy wire cutting machine tool, internal mold 1 adopts the mode of interference fit to be combined into one with external mold 5, spaced apart grooved hole 6 on the external mold 5, slotted eye 6 is embedded in the inserts die 4 of band cutting edge groove 3, inserts die 4 also uses high hardness alloy tool steel Cr12 (HRC60～64) to make, and common 45 steel of external mold 5 usefulness are made.
Claims (4)
1. combined blanking mould is characterized in that it is combined by the internal mold of band cutting edge groove on it and the external mold which is provided with the inserts die of band cutting edge groove.
2. combined blanking mould according to claim 1 is characterized in that described internal mold is as a whole, and a plurality of rule cutting edge grooves distribute on it.
3. combined blanking mould according to claim 1 is characterized in that described inserts die is provided with a cramp cutting edge groove.
4. combined blanking mould according to claim 1 is characterized in that the internal mold of described band cutting edge groove and is with the inserts die of cutting edge groove to manufacture with the alloy tool steel of high rigidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201048253U CN201079808Y (en) | 2007-07-24 | 2007-07-24 | Combined blanking die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201048253U CN201079808Y (en) | 2007-07-24 | 2007-07-24 | Combined blanking die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201079808Y true CN201079808Y (en) | 2008-07-02 |
Family
ID=39613489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201048253U Expired - Fee Related CN201079808Y (en) | 2007-07-24 | 2007-07-24 | Combined blanking die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201079808Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954403A (en) * | 2009-07-16 | 2011-01-26 | 安德里茨技术资产管理有限公司 | Be used to make the method for rotor sheet and stator piece |
| CN103507115A (en) * | 2013-10-22 | 2014-01-15 | 株洲南车时代电气股份有限公司 | Combined cutting die |
-
2007
- 2007-07-24 CN CNU2007201048253U patent/CN201079808Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954403A (en) * | 2009-07-16 | 2011-01-26 | 安德里茨技术资产管理有限公司 | Be used to make the method for rotor sheet and stator piece |
| CN101954403B (en) * | 2009-07-16 | 2015-09-09 | 安德里茨技术资产管理有限公司 | For the manufacture of the method for rotor sheet and stator piece |
| CN103507115A (en) * | 2013-10-22 | 2014-01-15 | 株洲南车时代电气股份有限公司 | Combined cutting die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080702 Termination date: 20120724 |