CN202715645U - Cold extruding die of involute helical spline - Google Patents
Cold extruding die of involute helical spline Download PDFInfo
- Publication number
- CN202715645U CN202715645U CN 201220371709 CN201220371709U CN202715645U CN 202715645 U CN202715645 U CN 202715645U CN 201220371709 CN201220371709 CN 201220371709 CN 201220371709 U CN201220371709 U CN 201220371709U CN 202715645 U CN202715645 U CN 202715645U
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- Prior art keywords
- die
- helical spline
- drift
- cushion block
- involute helical
- Prior art date
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- Expired - Lifetime
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- 238000000641 cold extrusion Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000005097 cold rolling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a cold extruding die of an involute helical spline. The cold extruding die comprises an upper die plate, an upper die sleeve connected with the upper die plate, a lower die plate, a lower die sleeve connected with the lower die plate, a plunger chip connected with the upper die plate and a female die corresponding to the position of the plunger chip. The lower die plate is provided with a lower cushion block and a first positioning sleeve for fixing the lower cushion block, the female die is arranged on the lower cushion block, the female die is provided with a charging basket die, and a lower push rod positioned on the lower die plate is arranged below the plunger chip. By utilizing the cold extruding die of the involute helical spline, the helical spline with the helical lead angle being larger than 35 degrees can be produced. The cold extruding die is simple in operation, high in efficiency and low in cost, and mass production can be realized.
Description
Technical field
The utility model relates to a kind of cold extrusion die, relates in particular to a kind of cold extrusion die of involute helical spline.
Background technology
In the cold extrusion of involute helical spline, because stressed complexity and eject the characteristics such as difficulty, realize producing in enormous quantities with the cold-stamped method and can only be used for lead angle less than the helical splines of 35 degree.More the helical spline of wide-angle can only just be realized with the method for cold rolling technique or machining, and cold rolling technique has certain limitation to the requirement of part shape, and the part strength that cuts out is lower, inefficiency, and cost is high.
The utility model content
Goal of the invention: the purpose of this utility model is in order to solve the deficiencies in the prior art, the helical spline cold extrusion die of a kind of lead angle greater than 35 degree to be provided.
Technical scheme: in order to realize above purpose, the cold extrusion die of involute helical spline described in the utility model comprises cope match-plate pattern, the Upper Die-sleeve with this cope match-plate pattern connection, lower bolster, the lower die-sleeve that is connected with this lower bolster, the drift that is connected with described cope match-plate pattern and the die corresponding with this drift position; Be provided with lower cushion block and fix the first positioning sleeve of this lower cushion block at described lower bolster, described die is located on the described lower cushion block, is provided with the charging basket mould at described die, is positioned at lower bolster and is provided with lower push rod below described drift.
Wherein, in order to make die and charging basket mould more firm, firm, be provided with at least one deck the second positioning sleeve at described die and the charging basket mould outside.
Further, in order to make the charging basket mould more firm, be provided with for fixing the first trim ring of charging basket mould at described lower die-sleeve.
Wherein, in order to protect drift, be provided with the drift cover in the described drift outside.
Further, more firm for drift is connected, be provided with for the second trim ring of fixing described drift in the described drift cover outside.
Beneficial effect: but the cold extrusion die production lead angle of the involute helical spline that the utility model provides is simple to operate greater than the helical spline of 35 degree, and efficient is high, cost is low, can realize large-scale production.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model.
The cold extrusion die of involute helical spline as shown in Figure 1, comprise cope match-plate pattern 1, the Upper Die-sleeve 2 with this cope match-plate pattern 1 connection, lower bolster 3, the lower die-sleeve 4 that is connected with this lower bolster 3, the drift 5 that is connected with cope match-plate pattern 1 and the die 6 corresponding with these drift 5 positions, be provided with drift cover 13 in drift 5 outsides, overlap 13 outsides at drift and be provided with for fixing the second trim ring 14 of drift 5, below drift 5, be positioned at lower bolster 3 and be provided with lower push rod 10; Be provided with lower cushion block 7 and fix the first positioning sleeve 8 of this lower cushion block 7 at lower bolster 3, die 6 is located on the lower cushion block 7, be provided with charging basket mould 9 at die 6, be provided with two-layer the second positioning sleeve 11 at die 6 and charging basket mould 9 outsides, be provided with for fixing the first trim ring 12 of charging basket mould 9 at lower die-sleeve 4.
The present invention in use, cope match-plate pattern 1 is connected with forcing press upper bolster 15 by bolt 16, when this involute helical spline of extruding, upper bolster 15 and the part drive drift 5 that connects on it move downward, after drift 5 touches the blank axle, exert pressure and push downwards, by the spiral work band of die 6, be pressed into (being greater than the effective length of helical spline) behind the segment distance forcing press backhaul, lower push rod 10 ejects this part, whole forming process is namely finished, and the lead angle of this part can be set the angle that need to reach according to demand greater than 35 degree, general 37 degree of producing, the scope of application is wider.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, its objective is to allow to be familiar with these those skilled in the art and can to understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalents or modifications of having done according to the utility model Spirit Essence all should be encompassed within the protection domain of the present utility model.
Claims (5)
1. the cold extrusion die of an involute helical spline comprises cope match-plate pattern (1), the Upper Die-sleeve (2) with this cope match-plate pattern (1) connection, lower bolster (3), the lower die-sleeve (4) that is connected with this lower bolster (3), the drift (5) that is connected with described cope match-plate pattern (1) and the die (6) corresponding with this drift (5) position; It is characterized in that: be provided with lower cushion block (7) and fix first positioning sleeve (8) of this lower cushion block (7) at described lower bolster (3), described die (6) is located on the described lower cushion block (7), be provided with charging basket mould (9) at described die (6), be positioned at lower bolster (3) in described drift (5) below and be provided with lower push rod (10).
2. the cold extrusion die of involute helical spline according to claim 1 is characterized in that: be provided with at least one deck the second positioning sleeve (11) at described die (6) and charging basket mould (9) outside.
3. the cold extrusion die of involute helical spline according to claim 1 is characterized in that: be provided with for fixing first trim ring (12) of charging basket mould (9) at described lower die-sleeve (4).
4. the cold extrusion die of involute helical spline according to claim 1 is characterized in that: be provided with drift cover (13) in described drift (5) outside.
5. the cold extrusion die of involute helical spline according to claim 1 is characterized in that: be provided with the second trim ring (14) for fixing described drift (5) in described drift cover (13) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371709 CN202715645U (en) | 2012-07-30 | 2012-07-30 | Cold extruding die of involute helical spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371709 CN202715645U (en) | 2012-07-30 | 2012-07-30 | Cold extruding die of involute helical spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202715645U true CN202715645U (en) | 2013-02-06 |
Family
ID=47617484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220371709 Expired - Lifetime CN202715645U (en) | 2012-07-30 | 2012-07-30 | Cold extruding die of involute helical spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202715645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052119A (en) * | 2017-05-05 | 2017-08-18 | 刘竹青 | Pencil sharpener helical hob cutter cold stretch manufacturing technique method and its mould |
-
2012
- 2012-07-30 CN CN 201220371709 patent/CN202715645U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052119A (en) * | 2017-05-05 | 2017-08-18 | 刘竹青 | Pencil sharpener helical hob cutter cold stretch manufacturing technique method and its mould |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215400, No. 88, Zheng He Dong Road, Taicang, Jiangsu, Suzhou Patentee after: TAICANG JIUXIN PRECISION MOLD Co.,Ltd. Address before: 215400, No. 88, Zheng He Dong Road, Taicang, Jiangsu, Suzhou Patentee before: TAICANG JIUXIN PRECISION MOLD Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |
|
| CX01 | Expiry of patent term |