CN215746195U - Rocker arm shaft forging forming die - Google Patents
Rocker arm shaft forging forming die Download PDFInfo
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- CN215746195U CN215746195U CN202122292357.XU CN202122292357U CN215746195U CN 215746195 U CN215746195 U CN 215746195U CN 202122292357 U CN202122292357 U CN 202122292357U CN 215746195 U CN215746195 U CN 215746195U
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Abstract
The utility model provides a rocker shaft forging forming die, which comprises an upper die and a lower die which are connected with each other; the upper die comprises an upper die base and an upper die core, an upper die cavity is formed in one side, close to the lower die, of the upper die core, and an upper die core stress ring is sleeved on the outer side of the upper die core; an upper mold core pressing ring is sleeved on the outer side of the upper mold core stress ring and connected with an upper mold core mold sleeve, and the upper mold core mold sleeve is connected with an upper mold base; the lower die comprises a lower die base and a lower die core, a lower die cavity is arranged in the lower die core, and a lower die core stress ring is sleeved on the outer side of the upper end of the lower die core; a lower mold core pressing ring is sleeved on the outer side of the lower mold core stress ring and connected with a lower mold core mold sleeve, and the lower mold core mold sleeve is connected with a lower mold base; the upper die cavity and the lower die cavity are matched to form an integral die cavity. The utility model solves the problems of low production efficiency, long forming process route and large product processing allowance of the rocker arm shaft in the prior art.
Description
Technical Field
The utility model relates to the technical field of machining equipment, in particular to a rocker shaft forging and forming die.
Background
The rocker arm is used for transmitting the motion of the camshaft to the intake and exhaust valves, the rocker arm is supported on a rocker arm shaft support on a cylinder cover through a rocker arm shaft, the rocker arm shaft is hollow and is provided with a plurality of small through holes, small holes are drilled on the rocker arm support, and the small holes on the rocker arm shaft are automobile engine components except for being opposite to the small holes on the rocker arm support.
The traditional forming process of the rocker shaft needs three steps of intermediate frequency heating, hammering two end rod parts by air and forging and forming in a forming die, the forming process has the defects of low production efficiency, long process route and complex structure of the forming die, and the die in the prior art adopts a mode of bidirectional die drawing of an upper die core and a lower die core, so that the die drawing inclination is large, and the machining allowance of a product is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rocker arm shaft forging and forming die which is used for solving the technical problems of low production efficiency, long forming process route and large product machining allowance of a rocker arm shaft in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a rocker shaft forging mold, including an upper mold and a lower mold connected to each other;
the upper die comprises an upper die base and an upper die core, wherein an upper die cavity is formed in one side, close to the lower die, of the upper die core, an upper die core stress ring is further sleeved on the outer side of the upper die core, an upper die core pressing ring is sleeved on the outer side of the upper die core stress ring, the upper die core pressing ring is connected with an upper die core die sleeve, and the upper die core die sleeve is connected with the upper die base;
the lower die comprises a lower die base and a lower die core, a lower die cavity is arranged in the lower die core, a lower die core stress ring is further sleeved on the outer side of the upper end of the lower die core, a lower die core pressing ring is sleeved on the outer side of the lower die core stress ring, the lower die core pressing ring is connected with a lower die core die sleeve, and the lower die core die sleeve is connected with the lower die base;
the upper die cavity and the lower die cavity are matched to form an integral die cavity.
In order to solve the problem of unstable connection and fixation between the dies, a first upper connecting hole and a second upper connecting hole are preferably formed in the upper die core pressing ring, and the upper die core pressing ring is connected with the upper die core sleeve through the first upper connecting hole.
Preferably, the upper die core die sleeve is provided with a third upper connecting hole and a fourth upper connecting hole, and the upper die core die sleeve is connected with the upper die base through the fourth upper connecting hole.
Preferably, a first lower connecting hole and a second lower connecting hole are formed in the lower die core pressing ring, and the lower die core pressing ring is connected with the lower die core die sleeve through the second lower connecting hole.
Preferably, the lower die core mold sleeve is provided with a third lower connecting hole and a fourth lower connecting hole, and the lower die core mold sleeve is connected with the lower die base through the fourth lower connecting hole.
Preferably, the upper die core pressing ring, the upper die core die sleeve and the upper die base are fixedly connected through bolts.
Preferably, the lower die core pressing ring, the lower die core die sleeve and the lower die base are fixedly connected through bolts.
Preferably, an upper die base plate is arranged inside the upper die core die sleeve and is positioned above the upper die core.
Preferably, the lower die base plate is sleeved on the outer side of the lower end of the lower die core and is positioned on the inner side of the lower die core die sleeve.
In conclusion, the beneficial effects of the utility model are as follows:
1. the upper die and the lower die are connected together to form the whole die, the upper die cavity of the upper die and the lower die cavity of the lower die are matched to form the integral die cavity, and a product is formed in the integral die cavity. The die for forging and forming the rocker arm shaft has the advantages of high production efficiency, low labor cost and small product machining allowance, and can shorten the forming process route of the rocker arm shaft.
2. The upper die core pressing ring, the upper die core die sleeve and the upper die base are fixedly connected through the bolt, and the lower die core pressing ring, the lower die core die sleeve and the lower die base are also fixedly connected through the bolt. The bolt connection is detachable connection, and the bolt connection has the advantages of simple structure, reliable connection, convenient assembly and disassembly and wide application.
3. An upper die base plate is arranged in an upper die core die sleeve and is positioned above an upper die core; meanwhile, a lower die base plate is sleeved on the outer side of the lower end of the lower die core, and the lower die base plate is positioned on the inner side of a lower die core die sleeve. The upper die base plate and the lower die base plate are arranged to protect the upper die base and the lower die base.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic view of an upper mold core and a lower mold core in one embodiment of the utility model;
FIG. 3 is a schematic view of a forging in one embodiment of the utility model.
Wherein, 1, an upper die holder; 2. a third upper connection hole; 3. an upper die base plate; 4. a fourth upper connection hole; 5. an upper mold core; 6. pressing a ring on the upper mold core; 7. a second upper connection hole; 8. a lower die core stress ring; 9. pressing a ring on the lower die core; 10. a second lower connection hole; 11. a third lower connection hole; 12. a lower die base plate; 13. a lower die holder; 14. a fourth lower connection hole; 15. a lower mold core mold sleeve; 16. pressing a ring on the lower die core; 17. a lower mold core; 18. an upper die core stress ring; 19. a first upper connection hole; 20. an upper mold core mold sleeve; 21. a lower die cavity; 22. and (4) an upper die cavity.
Detailed Description
The utility model provides a rocker shaft forging forming die which comprises an upper die and a lower die which are connected with each other, wherein the upper die and the lower die are connected to form the whole die.
The upper die comprises an upper die base 1 and an upper die core 5, and the upper die core 5 is a rotary body, so that the direction is not required to be found during forming. An upper die cavity 22 is formed in one side, close to the lower die, of the upper die core 5, and the upper die cavity 22 is used for being matched with the lower die cavity 21; the outer side of the upper mold core 5 is also sleeved with an upper mold core stress ring 18, and the upper mold core stress ring 18 is used for fine positioning during workpiece forming so as to control the coaxiality of products.
The outer side of the upper die core stress ring 18 is sleeved with an upper die core pressing ring 6, and the upper die core pressing ring 6 is used for assisting the upper die core stress ring 18 so as to ensure the coaxiality of workpieces. The upper die core pressing ring 6 is provided with a first upper connecting hole 19 and a second upper connecting hole 7, the upper die core pressing ring 6 is connected with an upper die core sleeve 20 through the first upper connecting hole 19, the upper die core sleeve 20 is provided with a third upper connecting hole 2 and a fourth upper connecting hole 4, the upper die core sleeve 20 is connected with the upper die base 1 through the fourth upper connecting hole 4, and the fourth upper connecting hole 4 is used for installing a bolt.
The upper die base plate 3 is arranged in the upper die core die sleeve 20, the upper die base plate 3 is positioned above the upper die core 5, and the upper die base plate 3 is arranged for protecting the upper die base 1.
The first upper connecting hole 19 and the third upper connecting hole 2 are matched to form a whole bolt connecting hole, the upper die core pressing ring 6 and the upper die core die sleeve 20 are connected through a bolt, and the bolt connection is detachable connection.
The lower die comprises a lower die base 13 and a lower die core 17, and the lower die core 17 is a rotary body. A lower die cavity 21 is arranged in the lower die core 17, and a lower die core stress ring 8 is further sleeved on the outer side of the upper end of the lower die core 17.
The outer side of the lower mold core stress ring 8 is sleeved with a lower mold core pressing ring 16, a first lower connecting hole and a second lower connecting hole 10 are formed in the lower mold core pressing ring 16, the lower mold core pressing ring 16 is connected with a lower mold core mold sleeve 15 through the second lower connecting hole 10, a third lower connecting hole 11 and a fourth lower connecting hole 14 are formed in the lower mold core mold sleeve 15, the lower mold core mold sleeve 15 is connected with a lower mold base 13 through the fourth lower connecting hole 14, and the fourth lower connecting hole 14 is used for installing a bolt. The second lower coupling hole 10 is fitted with the third lower coupling hole 11 to form an entire bolt coupling hole, and the lower core pressing ring 16 and the lower core mold 15 are coupled by a bolt.
The lower die base plate 12 is sleeved on the outer side of the lower end of the lower die core 17, and the lower die base plate 12 is located on the inner side of the lower die core die sleeve 15. A lower die backing plate 12 is provided for protection of the lower die base 13.
The upper cavity 22 and the lower cavity 21 cooperate to form a unitary cavity, and the product is molded in the unitary cavity. The shape of the die cavity is the same as that of the product, and the demoulding angle is consistent with the slope design of the product, so that the machining allowance of the finally formed product is small and uniform.
The upper and lower core stress rings 18, 8 are specifically used for fine positioning during workpiece forming to control the coaxiality of products during the process of assembling the upper and lower dies into the dies. The inner holes of the stress rings of the upper and lower mold cores are tapered, when the upper and lower mold cores are assembled, the tapered surfaces after mold assembly are completely meshed, and the upper and lower mold cores and the stress rings of the upper and lower mold cores form an integral structure; meanwhile, the upper end of the excircle of the stress ring of the upper mold core and the lower mold core is designed into a concave-convex structure, so that the coaxial precision of the workpiece after the upper mold core and the lower mold core are combined and molded is ensured in the production process of the workpiece; the lower end of the excircle of the stress ring of the upper mold core and the lower mold core is designed into a hanging table structure, and the upper mold core, the lower mold core and the stress ring of the upper mold core and the lower mold core are fixed in the upper mold base and the lower mold base through the pressing ring and the locking bolt.
The installation process comprises the following steps: the method comprises the steps of installing an upper die and a lower die, and then connecting the upper die and the lower die together.
Installing a lower die: firstly, a lower mold core die sleeve 15 is installed on a lower mold base 13, secondly, a lower mold base plate 12 is installed in the lower mold core die sleeve 15, then, a lower mold core 17 is installed in the lower mold base plate 12, then, a lower mold core stress ring 8 is installed on the outer side of the lower mold core 17, finally, a lower mold core pressing ring 16 is installed on the outer side of the lower mold core stress ring 8, and the installation of the whole lower mold is completed.
Installing an upper die: firstly, an upper mold core mold sleeve 20 is installed on an upper mold base 1, secondly, an upper mold base plate 3 is installed in the upper mold core mold sleeve 20, then, an upper mold core 5 is installed, an upper mold core stress ring 18 is installed on the outer side of the upper mold core 5, finally, an upper mold core pressing ring 6 is installed on the outer side of the upper mold core stress ring 18, and the installation of the whole upper mold is completed.
While the present invention has been described in detail with reference to the illustrated embodiments, it should not be construed as limited to the scope of the present patent. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (9)
1. A rocking arm axle forges forming die which characterized in that: comprises an upper die and a lower die which are connected with each other;
the upper die comprises an upper die base and an upper die core, wherein an upper die cavity is formed in one side, close to the lower die, of the upper die core, an upper die core stress ring is further sleeved on the outer side of the upper die core, an upper die core pressing ring is sleeved on the outer side of the upper die core stress ring, the upper die core pressing ring is connected with an upper die core die sleeve, and the upper die core die sleeve is connected with the upper die base;
the lower die comprises a lower die base and a lower die core, a lower die cavity is arranged in the lower die core, a lower die core stress ring is further sleeved on the outer side of the upper end of the lower die core, a lower die core pressing ring is sleeved on the outer side of the lower die core stress ring, the lower die core pressing ring is connected with a lower die core die sleeve, and the lower die core die sleeve is connected with the lower die base;
the upper die cavity and the lower die cavity are matched to form an integral die cavity.
2. The rocker shaft forging die of claim 1, wherein: the upper die core pressing ring is provided with a first upper connecting hole and a second upper connecting hole, and is connected with the upper die core sleeve through the first upper connecting hole.
3. The rocker shaft forging die of claim 1, wherein: and the upper die core die sleeve is provided with a third upper connecting hole and a fourth upper connecting hole and is connected with the upper die base through the fourth upper connecting hole.
4. The rocker shaft forging die of claim 1, wherein: and the lower die core pressing ring is connected with the lower die core die sleeve through the second lower connecting hole.
5. The rocker shaft forging die of claim 1, wherein: and the lower die core mold sleeve is provided with a third lower connecting hole and a fourth lower connecting hole and is connected with the lower die base through the fourth lower connecting hole.
6. The rocker shaft forging die of claim 1, wherein: the upper die core pressing ring, the upper die core die sleeve and the upper die base are fixedly connected through bolts.
7. The rocker shaft forging die of claim 1, wherein: and the lower die core pressing ring, the lower die core die sleeve and the lower die base are fixedly connected through bolts.
8. The rocker shaft forging die of claim 1, wherein: an upper die base plate is arranged inside the upper die core die sleeve and is positioned above the upper die core.
9. The rocker shaft forging die of claim 1, wherein: the lower die is characterized in that a lower die base plate is sleeved on the outer side of the lower end of the lower die core, and the lower die base plate is located on the inner side of a lower die core die sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122292357.XU CN215746195U (en) | 2021-09-22 | 2021-09-22 | Rocker arm shaft forging forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122292357.XU CN215746195U (en) | 2021-09-22 | 2021-09-22 | Rocker arm shaft forging forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215746195U true CN215746195U (en) | 2022-02-08 |
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ID=80089724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122292357.XU Active CN215746195U (en) | 2021-09-22 | 2021-09-22 | Rocker arm shaft forging forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215746195U (en) |
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2021
- 2021-09-22 CN CN202122292357.XU patent/CN215746195U/en active Active
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