CN203664447U - Extrusion die punch for processing bearing plate - Google Patents
Extrusion die punch for processing bearing plate Download PDFInfo
- Publication number
- CN203664447U CN203664447U CN201320784860.XU CN201320784860U CN203664447U CN 203664447 U CN203664447 U CN 203664447U CN 201320784860 U CN201320784860 U CN 201320784860U CN 203664447 U CN203664447 U CN 203664447U
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- drift
- extrusion die
- extrusion
- processing
- die
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Abstract
The utility model relates to an extrusion die punch for processing a bearing plate. The extrusion die punch comprises a punch body which is a cylindrical section with the diameter being 20mm. The front end of the punch body is provided with an extrusion part, wherein the extrusion part is 15 millimeters long and the diameter of the extrusion part is 13.5 millimeters. The front end of the extrusion part is provided with a die pulling part which is 5 millimeters long. The die pulling part is a circular truncated cone, wherein the included angle alpha between the lateral edges and the axis of the circular truncated cone is four to five degrees. The front portion of the circular truncated cone is small and the rear portion of the circular truncated cone is large. A die pulling angle is formed on the inclined face of the circumference of a cone circle. A transition section used for achieving the sooth transition between the extrusion part and the punch body is arranged between the tail end of the extrusion part and the punch body. The extrusion die punch for processing the bearing plate is long in service life, and the quality of processed products is good.
Description
Technical field
The utility model relates to punch die field, particularly a kind of for processing the extrusion die drift of support plate.
Background technology
The low-grade support plate of automotive transmission is the important composition parts of supporting epicyclic transmission mechanism.Low-grade support plate product needed squeezes out 13 or 20 boss by punch die is disposable on the same circumference of product, and diameter is identical, highly identical.In fact this punch die has been exactly the punch die of squeezing action.On every pair of extruding punch die, have 13 or 20 drifts.Extruding punch die is in the process of stamping products, extruding on punch die 13 or 20 drifts are pressed into after product depth 3mm, product has backward extrusion effect to drift, and common support plate is because of the needs of intensity, its thickness is thicker, the press section of drift is again straight cylinder, in the time that drift leaves product, frictional force is quite large, drift very easily damages, particularly end face edges and corners are the most obvious, lacking often appears in end face, split phenomenon, as illustrated in fig. 1 and 2, and along with the Reusability of drift, the breakage 6 of drift is more and more serious, have a strong impact on product quality, make product punching press occur defect 7, as shown in Figure 3.And this frock die size is large, part is many, each repair take a lot of work, time-consuming, repair and front produces and brings sizable pressure to frock.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provide a kind of long service life for processing the extrusion die drift of support plate.
The purpose of this utility model is to realize like this.
A kind of for processing the extrusion die drift of support plate, comprise drift body, described drift body is that diameter is the cylindrical section of 20mm, the front end of described drift body is provided with the long 15mm of being, diameter is the press section of 13.5 mm, the front end of this press section has the withdrawing pattern portion of a long 5mm, this withdrawing pattern portion is that the angle α between incline and axis is the round platform of 4～5 °, this round platform is pre-small post-large, inclined-plane in round week of cone forms draft angle, is provided with the changeover portion seamlessly transitting between press section and drift body for realizing between the tail end of described press section and drift body.
Described changeover portion is conical section, and the angle β between circular cone inclined-plane and the axis of this conical section is 10 °.
The surface roughness on the inclined-plane in the front end face of described withdrawing pattern portion and round week of cone is 0.8.
The tail end of described drift body is provided with the cylinder boss that diameter is 24mm.
The beneficial effects of the utility model are: due to of the present utility model for process the front end of drift body of extrusion die drift of support plate be provided with long for 15mm, diameter be the press section of 13.5 mm, the front end of this press section has the withdrawing pattern portion of a long 5mm, to reduce drift at the frictional resistance being pressed into while taking out after product.This withdrawing pattern portion is that the angle α between incline and axis is the round platform of 4～5 °, this round platform is pre-small post-large, inclined-plane in round week of cone forms draft angle, both be conducive to smooth and easy withdrawing pattern, can not increase again press strength, improve the ram efficiency of drift, and greatly improved the long service life of drift, and then guaranteed the quality of product.Use drift of the present utility model to reduce a large amount of maintenance costs, reduced human and material resources waste, reduced the pressure that frock manufacture is repaired.And the utility model is the low advantage of simple in structure, cost in addition.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Accompanying drawing explanation
Fig. 1 is former drift damage plan;
Fig. 2 is the damage end view of former drift;
Fig. 3 is that former drift is gone out product defects schematic diagram;
Fig. 4 is of the present utility model for processing the structural representation of extrusion die drift of support plate;
Fig. 5 is the P portion enlarged drawing of Fig. 4.
In accompanying drawing, 1 is drift body, and 2 is press section, and 3 is withdrawing pattern portion, and 4 is changeover portion, and 5 is cylinder boss, 6 breakages that are drift, 7 defects that are product.
The specific embodiment
Referring to Fig. 4 and Fig. 5, be used for a kind of embodiment of the extrusion die drift of processing support plate, comprise drift body 1, the cylindrical section that described drift body 1 is 20mm for diameter, it is that 15mm, diameter are the press section 2 of 13.5 mm that the front end of described drift body 1 is provided with long L1, the front end of this press section 2 has the withdrawing pattern portion 3 that a long L2 is 5mm, this withdrawing pattern portion 3 is that the angle α between incline and axis is the round platform of 4～5 °, this round platform is pre-small post-large, inclined-plane in round week of cone forms draft angle, to reduce drift at the frictional resistance being pressed into while taking out after product.This draft angle is the angle α between incline and the axis of withdrawing pattern portion, and the angle of this draft angle α is crossed conference increases press strength, and press is calculated to selection again, is too smallly unfavorable for again smooth and easy withdrawing pattern, does not also have effect.Draft angle of the present utility model is by several times analogy, calculating, and choosing draft angle α is 4～5 °, and this angle had both been conducive to withdrawing pattern, can not increase again press strength.The surface roughness on the inclined-plane in the front end face of described withdrawing pattern portion 3 and round week of cone is 0.8, compare 1.6 surface roughness of existing drift straight cylinder end face, the withdrawing pattern portion of this drift and the frictional force of product greatly reduce, make drift not fragile in the time leaving product, greatly improve the long service life of drift, and then guaranteed the quality of product.Between the tail end of described press section 2 and drift body 1, be provided with the changeover portion 4 seamlessly transitting between press section and drift body for realizing.Described changeover portion 4 is conical section, and the angle β between circular cone inclined-plane and the axis of this conical section is 10 °.The tail end of described drift body 1 is provided with the cylinder boss 5 that diameter is 24mm.
Drift of the present utility model increases after draft angle, uses for a long time through front, and this frock punch die stamps out approximately 40,000 of products, and this die-punch is without splitting, lack phenomenon, and all zero defects of every of the product gone out, have improved die life greatly.And adopt drift of the present utility model to change the phenomenon that will repair a punch die for three or four months in the past, reduced a large amount of manpower and materials wastes, reduced the pressure that frock manufacture is repaired.And adopt drift of the present utility model to the raising in service life of same similar frock, also have sizable reference function.
Claims (4)
1. one kind for processing the extrusion die drift of support plate, comprise drift body, it is characterized in that: described drift body is that diameter is the cylindrical section of 20mm, it is 15mm that the front end of described drift body is provided with long, diameter is the press section of 13.5 mm, the front end of this press section has the withdrawing pattern portion of a long 5mm, this withdrawing pattern portion is that the angle α between incline and axis is the round platform of 4～5 °, this round platform is pre-small post-large, inclined-plane in round week of cone forms draft angle, between the tail end of described press section and drift body, be provided with the changeover portion seamlessly transitting between press section and drift body for realizing.
2. according to claim 1 for processing the extrusion die drift of support plate, it is characterized in that: described changeover portion is conical section, the angle β between circular cone inclined-plane and the axis of this conical section is 10 °.
3. according to claim 1 for processing the extrusion die drift of support plate, it is characterized in that: the surface roughness on the front end face of described withdrawing pattern portion and the inclined-plane in round week of cone is 0.8.
4. according to claim 1 for processing the extrusion die drift of support plate, it is characterized in that: the tail end of described drift body is provided with the cylinder boss that diameter is 24mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784860.XU CN203664447U (en) | 2013-12-04 | 2013-12-04 | Extrusion die punch for processing bearing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784860.XU CN203664447U (en) | 2013-12-04 | 2013-12-04 | Extrusion die punch for processing bearing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203664447U true CN203664447U (en) | 2014-06-25 |
Family
ID=50960780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320784860.XU Expired - Fee Related CN203664447U (en) | 2013-12-04 | 2013-12-04 | Extrusion die punch for processing bearing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203664447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188287A (en) * | 2018-02-05 | 2018-06-22 | 广东欧珀移动通信有限公司 | Center component, center module processing method and electronic device |
-
2013
- 2013-12-04 CN CN201320784860.XU patent/CN203664447U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188287A (en) * | 2018-02-05 | 2018-06-22 | 广东欧珀移动通信有限公司 | Center component, center module processing method and electronic device |
| US10827632B2 (en) | 2018-02-05 | 2020-11-03 | Guangdong Oppo Mobile Telecommunications Corp., Ltd | Middle frame assembly, electronic apparatus and method for manufacturing middle frame assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141204 |
|
| EXPY | Termination of patent right or utility model |