CN220444955U - Closed composite forging die for shaft sleeve forging production - Google Patents
Closed composite forging die for shaft sleeve forging production Download PDFInfo
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- CN220444955U CN220444955U CN202320882762.3U CN202320882762U CN220444955U CN 220444955 U CN220444955 U CN 220444955U CN 202320882762 U CN202320882762 U CN 202320882762U CN 220444955 U CN220444955 U CN 220444955U
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- lower die
- forging
- die holder
- die
- sleeve
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- 238000005242 forging Methods 0.000 title claims abstract description 77
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Abstract
The utility model discloses a closed composite forging die for producing shaft sleeve forgings, and relates to the technical field of forging dies. The utility model comprises an upper die holder, a lower die holder and a lower die sleeve, wherein the upper die holder is arranged right above the lower die holder, the lower die sleeve is sleeved outside the lower die holder, and a blank is placed in a groove at the top of the lower die holder; the lower die sleeve is in clearance fit with the upper die holder, and the lower die sleeve is in interference fit with the lower die holder; the die further comprises an ejection mechanism, wherein the ejection mechanism is arranged in the inner cavity of the lower die holder and is used for ejecting the forged blank. Compared with the traditional forging die structure, the utility model decomposes the simple upper and lower die structure into the upper die holder, the lower die sleeve and the ejection mechanism, improves the die strength, facilitates the die stripping of the forging, and solves the problems of difficult die stripping, wrong die stripping, lower die cracking and low material utilization rate of the forging after the forging of the existing die.
Description
Technical Field
The utility model belongs to the technical field of forging dies, and particularly relates to a closed composite forging die for producing shaft sleeve forgings.
Background
The automobile shaft sleeve part and pipeline connecting piece belong to small ring forgings, the forgings need to be forged and formed through forging equipment in the processing process, the forging is a processing method for applying pressure to metal blanks by using forging machinery to enable the metal blanks to be plastically deformed so as to obtain forgings with certain mechanical properties and certain shapes and sizes, one of two components of forging (forging and stamping) can eliminate the defects of loose casting state and the like generated in the smelting process of metals through forging, the microstructure is optimized, and meanwhile, the complete metal streamline is preserved.
Forging and pressing mould is needed in the forging and forming process, but the traditional mould structure is composed of an upper mould and a lower mould, so that the forging is difficult to take out, the production efficiency is low, the material utilization rate is low, the wrong mould is easy to appear, the dimensional accuracy is poor, the structural strength of the lower mould is not ideal enough, the lower mould is easy to crack, and the whole production cost is higher.
Therefore, the existing forging dies cannot meet the requirements in practical use, so there is an urgent need for improved techniques in the market to solve the above-mentioned problems.
Disclosure of Invention
Compared with the traditional forging die structure, the closed composite forging die provided by the utility model has the advantages that the simple upper die structure and the simple lower die structure are divided into the upper die base, the lower die sleeve and the ejection mechanism, the die strength is improved, the forging is convenient to be ejected, and the problems of difficult ejection, wrong die, lower die cracking and low material utilization rate of the forging after forging of the existing die are solved.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a closed composite forging die for producing shaft sleeve forgings, which comprises an upper die holder, a lower die holder and a lower die sleeve, wherein the upper die holder is arranged right above the lower die holder; the lower die sleeve is in clearance fit with the upper die holder, and the lower die sleeve is in interference fit with the lower die holder; the die further comprises an ejection mechanism, wherein the ejection mechanism is arranged in the inner cavity of the lower die holder and is used for ejecting the forged blank.
Further, the lower die sleeve is higher than the lower die holder, and a protruding portion is arranged on the inner surface of the lower die sleeve above the lower die holder.
Further, groove parts are arranged on two sides of the outer surface of the upper die holder; the groove portion is engaged with the boss portion.
Further, the ejection mechanism comprises a material ejection ring, a material ejection rod and a material ejection plate; the material ejection ring is arranged in a top groove of the lower die holder, and the material ejection plate is arranged in a bottom groove of the lower die holder; the liftout pole sets up between liftout ring and liftout board, and clearance fit between liftout ring and the liftout pole, clearance fit between liftout pole and the liftout board.
Further, the ejector rods are arranged in a plurality, are uniformly distributed along the circumference, and the lower die base is provided with through holes for the ejector rods to pass through.
Further, the ejector ring, the ejector rod and the ejector plate are in clearance fit with the lower die holder.
The utility model has the following beneficial effects:
1. compared with the traditional forging die structure, the utility model decomposes the simple upper die structure and lower die structure into the upper die holder, the lower die holder and the lower die sleeve, the whole forging die is of a closed composite structure, flash is avoided during forging of the forging piece, raw materials are saved, and the problems of difficult demolding, wrong die, lower die cracking and low material utilization rate of the forging piece after forging of the existing die are solved.
2. The lower die sleeve is arranged, the lower die holder is preloaded, so that the strength of the lower die holder is increased, the risk of cracking is avoided, and the cost for increasing the die for ensuring the strength of the lower die holder is also avoided; secondly, the upper die holder is guided, so that the error die of the upper die holder and the lower die holder is avoided, the size precision of the forging is ensured, and the alignment time of workers in die installation is shortened.
3. According to the utility model, the ejection mechanism is arranged, so that the forging piece of the forging die is convenient to eject, the lower end surface of the forging piece is integrally ejected by adopting the ejection ring, the die clamping phenomenon is avoided, the production efficiency is improved, and the problem that the surface quality of the forging piece is influenced by ejection marks due to the fact that the ejection rod is directly ejected on the forging piece by adopting the traditional ejection mechanism is also avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of an overall structure;
FIG. 2 is a front cross-sectional view of the overall structure;
FIG. 3 is a schematic diagram of the die position during blank forging;
FIG. 4 is a schematic view of an ejector mechanism;
FIG. 5 is a schematic view of a lower die holder;
fig. 6 is a schematic diagram of a connection structure between an upper die holder and a lower die sleeve.
In the drawings, the list of components represented by the various numbers is as follows:
1. an upper die holder; 2. a lower die holder; 3. a lower die sleeve; 4. blank material; 5. an ejection mechanism; 11. a groove portion; 21. a through hole; 31. a boss; 51. a material ejection ring; 52. a material ejecting rod; 53. and a material ejection plate.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1 to 3 and 6, the utility model discloses a closed composite forging die for producing shaft sleeve forgings, which comprises an upper die holder 1, a lower die holder 2 and a lower die sleeve 3, wherein the upper die holder 1 is arranged right above the lower die holder 2, the lower die sleeve 3 is sleeved outside the lower die holder 2, and a blank 4 is placed in a groove at the top of the lower die holder 2; the lower die sleeve 3 is in clearance fit with the upper die holder 1, and the lower die sleeve 3 is in interference fit with the lower die holder 2; the lower die sleeve 3 is higher than the lower die holder 2, and a protruding part 31 is arranged on the inner surface of the lower die sleeve 3 above the lower die holder 2; groove parts 11 are arranged on two sides of the outer surface of the upper die holder 1; the groove portion 11 is fitted with the boss portion 31.
The lower die sleeve 3 is arranged, firstly, the lower die holder 2 is preloaded, so that the strength of the lower die holder 2 is increased, the risk of cracking is avoided, and the cost for increasing the die for ensuring the strength of the lower die holder 2 is also avoided; secondly, the upper die holder 1 is guided, and by arranging the groove part 11 and the bulge part 31, the upper die holder 1 and the lower die sleeve 3 are guided by the groove part 11 and the bulge part 31, so that the error die of the upper die holder 1 and the lower die holder 2 is avoided, the size precision of a forging piece is improved, and the alignment time of workers during die installation is reduced.
As shown in fig. 1 to 5, the die further comprises an ejection mechanism 5, wherein the ejection mechanism 5 is arranged in the inner cavity of the lower die holder 2 and is used for ejecting the forged blank 4; the ejection mechanism 5 comprises a material ejection ring 51, a material ejection rod 52 and a material ejection plate 53; the material ejection ring 51 is arranged in a top groove of the lower die holder 2, and the material ejection plate 53 is arranged in a bottom groove of the lower die holder 2; the ejector rod 52 is arranged between the ejector ring 51 and the ejector plate 53, and the ejector ring 51 is in clearance fit with the ejector rod 52, and the ejector rod 52 is in clearance fit with the ejector plate 53; the number of the ejection rods 52 is multiple, the ejection rods are uniformly distributed along the circumference, and through holes 21 for the ejection rods 52 to pass through are formed in the lower die holder 2; the ejector ring 51, the ejector rod 52 and the ejector plate 53 are in clearance fit with the lower die holder 2.
The setting of ejection mechanism 5 for this forging and pressing mould forging demolding is convenient, and the forging adopts liftout ring 51 to wholly push out its lower terminal surface, has avoided the card mould phenomenon, has improved production efficiency, also avoids traditional liftout mechanism to adopt liftout pole 52 direct top on the forging, appears the liftout trace and influences forging surface quality's problem.
Compared with the traditional forging die structure, the utility model decomposes the simple upper die structure and the simple lower die structure into the upper die holder 1, the lower die holder 2, the lower die sleeve 3 and the ejection mechanism 5, the whole forging die is of a closed composite structure, flash is not generated during forging of the forging piece, raw materials are saved, and the problems of difficult die stripping, die staggering, lower die cracking and low material utilization rate of the forging piece after forging of the existing die are solved.
The operation of this embodiment is as follows:
taking a formed automobile shaft sleeve forging as an example, placing a blank 4 in a lower die holder 2, then controlling an upper die holder 1 to descend, and guiding through a lower die sleeve 3 in the descending process of the upper die holder 1;
the blank 4 is formed into a forging after die forging, and the ejector plate 53 moves upwards under the action of an ejector cylinder below the device, so that the ejector rod 52 and the ejector ring 51 are pushed to move upwards, and the forging is ejected from the die under the action of the ejector ring 51.
The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.
Claims (6)
1. The utility model provides a shaft sleeve forging production is with closed compound forging and pressing mould, includes upper die base (1), die holder (2) and lower die sleeve (3), its characterized in that:
the upper die holder (1) is arranged right above the lower die holder (2), the lower die sleeve (3) is sleeved outside the lower die holder (2), and a blank (4) is placed in a groove at the top of the lower die holder (2);
the lower die sleeve (3) is in clearance fit with the upper die holder (1), and the lower die sleeve (3) is in interference fit with the lower die holder (2);
the die further comprises an ejection mechanism (5), wherein the ejection mechanism (5) is arranged in the inner cavity of the lower die holder (2) and is used for ejecting the forged blank (4).
2. The closed composite forging die for shaft sleeve forging production according to claim 1, wherein the lower die sleeve (3) is higher than the lower die holder (2), and a protruding portion (31) is arranged on the inner surface of the lower die sleeve (3) above the lower die holder (2).
3. The closed composite forging die for shaft sleeve forging production according to claim 2, wherein groove parts (11) are arranged on two sides of the outer surface of the upper die holder (1);
the groove portion (11) is fitted with the boss portion (31).
4. The closed composite forging die for shaft sleeve forging production according to claim 1, wherein the ejection mechanism (5) comprises an ejector ring (51), an ejector rod (52) and an ejector plate (53);
the material ejection ring (51) is arranged in a top groove of the lower die holder (2), and the material ejection plate (53) is arranged in a bottom groove of the lower die holder (2);
the ejector rod (52) is arranged between the ejector ring (51) and the ejector plate (53), the ejector ring (51) is in clearance fit with the ejector rod (52), and the ejector rod (52) is in clearance fit with the ejector plate (53).
5. The closed composite forging die for shaft sleeve forging production according to claim 4, wherein a plurality of ejector rods (52) are arranged and uniformly distributed along the circumference, and through holes (21) for the ejector rods (52) to pass through are formed in the lower die holder (2).
6. The closed composite forging die for shaft sleeve forging production according to claim 4, wherein the ejector ring (51), the ejector rod (52) and the ejector plate (53) are in clearance fit with the lower die holder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320882762.3U CN220444955U (en) | 2023-04-19 | 2023-04-19 | Closed composite forging die for shaft sleeve forging production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320882762.3U CN220444955U (en) | 2023-04-19 | 2023-04-19 | Closed composite forging die for shaft sleeve forging production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220444955U true CN220444955U (en) | 2024-02-06 |
Family
ID=89736939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320882762.3U Active CN220444955U (en) | 2023-04-19 | 2023-04-19 | Closed composite forging die for shaft sleeve forging production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220444955U (en) |
-
2023
- 2023-04-19 CN CN202320882762.3U patent/CN220444955U/en active Active
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