CN2664808Y - Special die for stretching and extruding sealing element framework - Google Patents
Special die for stretching and extruding sealing element framework Download PDFInfo
- Publication number
- CN2664808Y CN2664808Y CNU2003201254623U CN200320125462U CN2664808Y CN 2664808 Y CN2664808 Y CN 2664808Y CN U2003201254623 U CNU2003201254623 U CN U2003201254623U CN 200320125462 U CN200320125462 U CN 200320125462U CN 2664808 Y CN2664808 Y CN 2664808Y
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- punch
- die
- stretching
- sealing element
- element framework
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Abstract
The utility model relates to a tensile crowded limit special mould of sealing member skeleton, its characterized in that: the special die is a stamping die and comprises a female die and a combined punch; the combined punch consists of a trimming punch and a stretching punch which are coaxial and fixedly connected; the molded surface of the female die is provided with sharp points. The special die for stretching and extruding the sealing element framework adopts the punch with a combined structure and the female die profile with a sharp point, so that the shearing condition is greatly improved, the service life of the trimming punch is prolonged, and the stretching effect is not weakened; therefore, the processing technology of the sealing element framework is simplified, considerable processing time and labor amount are saved, and the production efficiency is improved.
Description
Technical field: the utility model belongs to field of machining, relates to a kind of seal skeleton stretching and squeezes the limit particular manufacturing craft.
Background technology: seal skeleton part production lot is big, its basic manufacturing process is that blanking stretches, generally all inevitably there are some defectives in part open top end after drawing: as zigzag or waveform etc., its reason is: the one, and problem such as that raw material quality exists is in uneven thickness, inhomogeneous, rough surface of metallographic structure; The 2nd, mould manufacturing and mold regulator can cause that plastic deformation is mobile and change.Because sealing part skeleton part height tolerance is little, within 0.10 millimeter, so the workpiece after process is drawn must add and carry out second road side cut operation or the grinding; Thereby making the processing technology complexity of seal skeleton, production efficiency is not high.
Summary of the invention: the utility model is in order to solve seal skeleton processing technology complexity, problem that production efficiency is not high, propose a kind of seal skeleton stretching and squeezed the limit particular manufacturing craft, it is characterized in that: described particular manufacturing craft is a stamping die, comprises die and multipart punch; Described multipart punch is made of coaxial line and fixedly connected trimming punch and stretching drift; The die profile has cusp.
Sealing part skeleton stretches and squeezes the die profile that the limit particular manufacturing craft adopts the drift of combining structure and has cusp, has improved the shearing condition when cutting edge greatly, has improved machining condition greatly, has improved the service life of trimming punch, and has not weakened stretching action; Thereby make the simplified processing technology of seal skeleton, save the considerable process time and the amount of labour, improved production efficiency.
Description of drawings: Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the I partial enlarged drawing of Fig. 1.
The specific embodiment: as shown in Figure 1, sealing part skeleton stretches and squeezes the limit particular manufacturing craft is stamping die, comprises that die 14 and the multipart punch of being made up of trimming punch 11 and stretching drift 12 constitute; Die 14 is fixed on the lower bolster 1 by bottom plate 2, and multipart punch is installed on the cope match-plate pattern 7 by upper mounted plate 6; The trimming punch 11 of multipart punch is adhesively fixed into a drift that becomes same axis with stretching drift 12.
Blank behind the shallow recessing 5 is placed on down on the backing-out punch 3, by die 14 location.Subsequently under the drive of press ram, drift 12,11 enters die 14 successively, stretch and side cut work thereby finish, the forcing press backhaul, under the effect of backing-out punch 3, workpiece 5 rises with drift under lower push rod 15 reaches, reach under the effect of backing-out punch 13 at knockout rod 9 at last, workpiece 5 is got, and under the effect of spring 10 and stripper 4, the side cut waste material falls automatically simultaneously.As shown in Figure 2, stretching drift 12, trimming punch 11 and 14 standard clearances that two correspondences are arranged of die, i.e. drawing gap and side cut gap, drawing gap is selected for use by general standard and is got final product, and the side cut gap is selected minimum clearance for use according to material thickness.
Owing to adopt the drift of combining structure, the drift that promptly stretches is combined into a drift that becomes same axis with trimming punch, trimming punch 11 utilizes a sharp-pointed shaft shoulder to squeeze the upper edge redundance of skeleton part, thereby guarantee the part height tolerance within 0.10 millimeter, make that simultaneously the sharpening of trimming punch 11 is convenient; Die 14 circumference and general structure are similar, only be that with the difference of common stretching die radius of corner R and inner cylinder face are not tangent, and cause a cusp P, this method has been improved shearing condition greatly, improve the service life of trimming punch, and do not weakened stretching action; Stretching drift 12 and trimming punch 11 adopt bonding method, have promptly improved bonding strength, have guaranteed drift intensity again; Adopt three cover shedding mechanisms, promptly lower push rod 15 ejects, and last knockout rod 9 is laid and gone up elastic tripper 4, has guaranteed the correct depanning of part and waste material.
Claims (1)
1, a kind of seal skeleton stretches and squeezes the limit particular manufacturing craft, and it is characterized in that: described particular manufacturing craft is a stamping die, comprises die and multipart punch; Described multipart punch is made of coaxial line and fixedly connected trimming punch and stretching drift; The die profile has cusp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201254623U CN2664808Y (en) | 2003-12-16 | 2003-12-16 | Special die for stretching and extruding sealing element framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201254623U CN2664808Y (en) | 2003-12-16 | 2003-12-16 | Special die for stretching and extruding sealing element framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2664808Y true CN2664808Y (en) | 2004-12-22 |
Family
ID=34349244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201254623U Expired - Lifetime CN2664808Y (en) | 2003-12-16 | 2003-12-16 | Special die for stretching and extruding sealing element framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2664808Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693339B (en) * | 2009-10-16 | 2011-05-11 | 苏州轴承厂有限公司 | Production method of plain thrust bearing retainer and special die thereof |
| CN103949546A (en) * | 2014-04-16 | 2014-07-30 | 江西江铃底盘股份有限公司 | Composite die applied to blanking molding of V-shaped axle case body insert of automobile drive axle |
| CN107598014A (en) * | 2017-09-13 | 2018-01-19 | 芜湖市中天密封件有限公司 | The biaxial tension production equipment and production method of seal |
-
2003
- 2003-12-16 CN CNU2003201254623U patent/CN2664808Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693339B (en) * | 2009-10-16 | 2011-05-11 | 苏州轴承厂有限公司 | Production method of plain thrust bearing retainer and special die thereof |
| CN103949546A (en) * | 2014-04-16 | 2014-07-30 | 江西江铃底盘股份有限公司 | Composite die applied to blanking molding of V-shaped axle case body insert of automobile drive axle |
| CN107598014A (en) * | 2017-09-13 | 2018-01-19 | 芜湖市中天密封件有限公司 | The biaxial tension production equipment and production method of seal |
| CN107598014B (en) * | 2017-09-13 | 2019-05-31 | 芜湖市中天密封件有限公司 | The biaxial tension production equipment and production method of sealing element |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131216 Granted publication date: 20041222 |