CN202570967U - Punching die for flange of automobile exhaust pipe - Google Patents
Punching die for flange of automobile exhaust pipe Download PDFInfo
- Publication number
- CN202570967U CN202570967U CN 201220221513 CN201220221513U CN202570967U CN 202570967 U CN202570967 U CN 202570967U CN 201220221513 CN201220221513 CN 201220221513 CN 201220221513 U CN201220221513 U CN 201220221513U CN 202570967 U CN202570967 U CN 202570967U
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- die
- exhaust pipe
- automobile exhaust
- plate
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Abstract
The utility model relates to a punching die for a flange of an automobile exhaust pipe. The punching die is easy to operate and high in machining efficiency. The punching die comprises an upper die and a lower die, which are matched with each other. The upper die comprises an upper die holder, and an extrusion molding male die and a stripper plate, which are arranged on the upper die holder. The lower die comprises a lower die holder, and a lower template and a stripper floating block, which are arranged on the lower die holder. An insert is embedded into the middle part of the stripper plate, and is tightly sleeved on the periphery of the extrusion molding male die. A groove is formed on an inner sidewall which is matched with the extrusion molding male die, is inwards sunken from the end face, which contacts with a workpiece, of the insert, and is matched with a flanged hole of the workpiece. The stripper floating block is embedded into the middle part of the lower template, is supported by a lower die gas spring assembled on the lower die holder, and is matched with the insert. An insert profile on the stripper plate is ingeniously utilized on the basis of the conventional punching die, and a change in an overall dimension is controlled, so that the problem of increase of an external diameter in a backward extrusion process is solved.
Description
Technical field
The utility model belongs to the Machining Technology field, relates to a kind of processing particular manufacturing craft of ring flange, relates in particular to automobile exhaust pipe flange punching die.
Background technology
The automobile exhaust pipe flange is expected thick 9mm, appearance and size 107mmX112.5mm; Material is SPHE, and structure is as shown in Figure 1, has medium pore 1a and three pilot hole 2a that are uniformly distributed with; Medium pore 1a is interior stepped hole, requires endoporus aperture 11a diameter of phi 55.00 ± 0.05mm of medium pore 1a, endoporus macropore 12a diameter of phi 58.60 ± 0.05mm; Endoporus requires surface smoothness, and endoporus macropore 12a step place requires below the R0.3mm, hole flanging 13a outside diameter Φ 66.80 ± 0.4mm; Outer need ask in week full the euphotic belt width reach material thick more than 90%, burr can not be arranged.
Processing to the automobile exhaust pipe flange; At present generally adopt the mould punching press to add that lathe appends process and satisfies fitted position and tolerance in the industry, concrete technological process is following: blanking-punching-take out hole and shaping-shaping fillet-secondary punching-turning processing.Technological parameter in taking out the hole trimming is the diameter of bore Φ 53.00mm of medium pore 1, the high 15.00mm in hole; Reduce the high surplus in hole in the shaping fillet operation to 13.50mm, residue allowance is waited until turning processing.So it is high to have increased man-hour and processing cost, production efficiency is lower.
Because the punching die that adopts usually can't prevent that external diameter becomes big problem in the backward extrusion process, therefore, must stay allowance through the turning processed.Therefore,, save turning processing, then must solve big problem, the especially punching die of external diameter change in the backward extrusion process if will directly pass through the mould punch forming.Yet, just so far, not relevant for the punching die of this automobile exhaust pipe flange processing especially particular manufacturing craft correlation technique of secondary punching, can guarantee straight forming as yet, reach the product design requirement.
Given this, the research and development to this special mould for punching have very important practice significance.
Summary of the invention
The utility model can't prevent in the backward extrusion process that in order to solve existing automobile exhaust pipe flange processing punching die external diameter becomes big and must be through the problem of turning processing, and proposes a kind of simple to operate, automobile exhaust pipe flange punching die that working (machining) efficiency is high.
The utility model is realized through following scheme:
Above-mentioned automobile exhaust pipe flange punching die comprises the upper die and lower die of mutual coupling; Said patrix comprises upper bolster and is installed in the crowded shape punch and the stripper plate of said upper bolster that counterdie comprises die shoe and is installed in the lower bolster of said die shoe and takes off the material floating block; The middle part of said stripper plate is embedded with inserts; Said inserting closely is sheathed on said crowded shape punch periphery, and the madial wall that matches with said crowded shape punch is provided with groove, and said groove is inserted and the formation that caves inward of the contacted end face of workpiece from said, is complementary with the hole flanging of said workpiece; Said taking off expects that floating block is embedded at the middle part of said lower bolster, supported by the counterdie gas spring that is assemblied in said die shoe, and is complementary with said inserting.
Described automobile exhaust pipe flange punching die, wherein: said patrix also comprises upper padding plate, train wheel bridge, thrust plate and patrix stroke sleeve pipe; Said upper padding plate mount outwards is equipped with described train wheel bridge, thrust plate and stripper plate successively in upper bolster one end face; Said thrust plate is by being installed in said upper bolster and passing said upper padding plate gas spring and support; Said patrix stroke sleeve pipe one end is fixed on train wheel bridge, and the other end passes thrust plate and is fixedly arranged on stripper plate.Said crowded shape punch runs through said upper padding plate, train wheel bridge, thrust plate and stripper plate successively.
Described automobile exhaust pipe flange punching die, wherein: said counterdie also comprises bottom plate; Said lower bolster is assemblied in said die shoe through lower bolster, is complementary with the position of the crowded shape punch of said patrix.Said counterdie also comprises counterdie stroke sleeve pipe; Said counterdie stroke sleeve pipe connects described lower bolster and takes off the material floating block, to control the said stroke that takes off the material floating block.
Described automobile exhaust pipe flange punching die, wherein: said mould also is provided with guide-localization mechanism.Said guide-localization mechanism comprises mutual coupling and is arranged at the guide pillars and bushes of said upper die and lower die respectively.
Beneficial effect:
The punching die of the utility model; Only on the basis of original punching die, the ingenious profiling of inserting that utilizes on the stripper plate is controlled appearance and size and is changed; Overcome that external diameter can become big problem in the backward extrusion process; Thereby guaranteed that product directly through the mould punch forming, no longer appends the turning manufacturing procedure, can reach the designing requirement of product; Simple in structure, solved but that external diameter can become big problem in the backward extrusion process, thereby guaranteed the realization of the utility model method.
Description of drawings
Fig. 1 is the structural representation of automobile exhaust pipe flange.
Fig. 2 is the assembled state structural representation of the utility model particular manufacturing craft.
Fig. 3 is the upper and lower mould released state structural representation of the utility model particular manufacturing craft.
Fig. 4 is the patrix structural representation of the utility model particular manufacturing craft.
Fig. 5 is the counterdie structural representation of the utility model particular manufacturing craft.
The specific embodiment
To shown in Figure 5, the automobile exhaust pipe flange punching die of the utility model is mainly used in punching operation, the especially punching die of secondary punching operation that the automobile exhaust pipe flange is processed like Fig. 2, comprises the patrix 1 and counterdie 2 of mutual coupling;
Patrix 1 comprises upper bolster 11, upper padding plate 12, squeezes shape punch 13, train wheel bridge 14, thrust plate 15, stripper plate 16, patrix gas spring 17 and patrix stroke sleeve pipe 18;
The middle part of stripper plate 16 is embedded with inserts 160; These 160 ring set structures of inserting for being complementary with crowded shape punch 13; Closely be sheathed on this crowded shape punch 13 peripheries; And the madial wall that matches with this crowded shape punch 13 is provided with groove 161; This groove 161 from insert 160 with the formation that caves inward of workpiece 3 contacted end faces, be complementary with the hole flanging of workpiece 3;
Patrix gas spring 17 is installed in upper bolster 11, passes upper padding plate 12 and supports thrust plate 15;
Patrix stroke sleeve pipe 18 1 ends are fixed on train wheel bridge 14, and the other end passes thrust plate 15 and is fixedly arranged on stripper plate 16.
Counterdie 2 comprises bottom plate 21, bottom seat pad 22, die shoe 23, lower bolster 24, lower bolster 25, takes off material floating block 26, counterdie gas spring 27 and counterdie stroke sleeve pipe 28;
Die shoe 23 is assemblied in bottom plate 21 through bottom seat pad 22;
Take off material floating block 26 and be embedded at the hole 250 of this lower bolster 25, and take off the height that the height of expecting floating block 26 is lower than lower bolster 25, the difference in height of the two is not more than the height of workpiece 3;
Counterdie gas spring 27 fixedly is assemblied in die shoe 23 and takes off material floating block 26 corresponding positions, supports this and takes off material floating block 26;
Counterdie stroke sleeve pipe 28 connects lower bolster 24 and takes off material floating block 26, takes off the stroke of material floating block 26 with control.
This mould also is provided with guide-localization mechanism 4, and this guide-localization mechanism 4 comprises mutual coupling and is arranged at patrix 1 respectively and the guide pillar 41 and guide pin bushing 42 of counterdie 2.
This punching die, the ingenious profiling of inserting that utilizes on the stripper plate 16, control appearance and size changes; Overcome that external diameter can become big problem in the backward extrusion process; Thereby guaranteed that product directly through the mould punch forming, no longer appends the turning manufacturing procedure, can reach the designing requirement of product.
The mould of the utility model only on the basis of original secondary punching mould, is set up one and is inserted on stripper plate, simple in structure, has solved but that external diameter can become big problem in the backward extrusion process, has guaranteed the straight forming of product; Save man-hour and processing cost, improved production efficiency.
Claims (7)
1. automobile exhaust pipe flange punching die comprises the upper die and lower die of mutual coupling; Said patrix comprises upper bolster and is installed in the crowded shape punch and the stripper plate of said upper bolster that counterdie comprises die shoe and is installed in the lower bolster of said die shoe and takes off the material floating block;
It is characterized in that:
The middle part of said stripper plate is embedded with inserts; Said inserting closely is sheathed on said crowded shape punch periphery, and the madial wall that matches with said crowded shape punch is provided with groove, and said groove is inserted and the formation that caves inward of the contacted end face of workpiece from said, is complementary with the hole flanging of said workpiece;
Said taking off expects that floating block is embedded at the middle part of said lower bolster, supported by the counterdie gas spring that is assemblied in said die shoe, and is complementary with said inserting.
2. automobile exhaust pipe flange punching die as claimed in claim 1 is characterized in that: said patrix also comprises upper padding plate, train wheel bridge, thrust plate and patrix stroke sleeve pipe;
Said upper padding plate mount outwards is equipped with described train wheel bridge, thrust plate and stripper plate successively in upper bolster one end face;
Said thrust plate is by being installed in said upper bolster and passing said upper padding plate gas spring and support;
Said patrix stroke sleeve pipe one end is fixed on said train wheel bridge, and the other end passes said thrust plate and is fixedly arranged on said stripper plate.
3. automobile exhaust pipe flange punching die as claimed in claim 2 is characterized in that: said crowded shape punch runs through said upper padding plate, train wheel bridge, thrust plate and stripper plate successively.
4. automobile exhaust pipe flange punching die as claimed in claim 1, it is characterized in that: said counterdie also comprises bottom plate; Said lower bolster is assemblied in said die shoe through lower bolster, is complementary with the position of the crowded shape punch of said patrix.
5. like claim 1 or 4 described automobile exhaust pipe flange punching dies, it is characterized in that: said counterdie also comprises counterdie stroke sleeve pipe; Said counterdie stroke sleeve pipe connects described lower bolster and takes off the material floating block, to control the said stroke that takes off the material floating block.
6. like the arbitrary described automobile exhaust pipe flange punching die of claim 1-4, it is characterized in that: said mould also is provided with guide-localization mechanism.
7. automobile exhaust pipe flange punching die as claimed in claim 6 is characterized in that: said guide-localization mechanism comprises mutual coupling and is arranged at the guide pillars and bushes of said upper die and lower die respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220221513 CN202570967U (en) | 2012-05-17 | 2012-05-17 | Punching die for flange of automobile exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220221513 CN202570967U (en) | 2012-05-17 | 2012-05-17 | Punching die for flange of automobile exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202570967U true CN202570967U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220221513 Expired - Fee Related CN202570967U (en) | 2012-05-17 | 2012-05-17 | Punching die for flange of automobile exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202570967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084477A (en) * | 2012-11-13 | 2013-05-08 | 无锡爱博金属制品有限公司 | Hole flanging reshaping die for lower reinforcing plate of engine cover lock |
| CN107931413A (en) * | 2017-12-21 | 2018-04-20 | 江苏太平洋精锻科技股份有限公司 | The hot finish forge punching die of Car Change-speed Gear Box Binding Gear |
-
2012
- 2012-05-17 CN CN 201220221513 patent/CN202570967U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084477A (en) * | 2012-11-13 | 2013-05-08 | 无锡爱博金属制品有限公司 | Hole flanging reshaping die for lower reinforcing plate of engine cover lock |
| CN107931413A (en) * | 2017-12-21 | 2018-04-20 | 江苏太平洋精锻科技股份有限公司 | The hot finish forge punching die of Car Change-speed Gear Box Binding Gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141205 Address after: 430056 Chang Fu Industrial Demonstration Garden, Caidian District, Hubei, Wuhan Patentee after: Wuhan Jing self-man Technology Co. Ltd. Address before: 430056 Orford Industrial Park, 11 Zhushan Avenue, Wuhan economic and Technological Development Zone, Hubei, China Patentee before: Wuhan Jingliren Mould Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150517 |
|
| EXPY | Termination of patent right or utility model |