CN211191839U - Pre-compaction piece die of 2014 aluminum alloy aviation precision hub die forging - Google Patents
Pre-compaction piece die of 2014 aluminum alloy aviation precision hub die forging Download PDFInfo
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- CN211191839U CN211191839U CN201922086237.7U CN201922086237U CN211191839U CN 211191839 U CN211191839 U CN 211191839U CN 201922086237 U CN201922086237 U CN 201922086237U CN 211191839 U CN211191839 U CN 211191839U
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Abstract
The utility model discloses a 2014 accurate wheel hub die forging's of aluminum alloy aviation pre-compaction piece mould, including last mould and lower mould, the first bellied terminal surface of last mould is provided with first recess, the middle part of first recess is provided with the second recess, be provided with the third arch in the second recess, form first annular gap between the wall of third arch and second recess, be provided with the fourth recess that is used for forming the lug rudiment in the first arch, be provided with the die cavity on the lower mould, the bottom of die cavity is provided with the second arch, it is provided with first annular groove and second annular groove from inside to outside to surround the die cavity on the lower mould, first annular groove and die cavity intercommunication, second annular groove and an annular groove intercommunication, the third recess has been seted up at the bottom middle part of die cavity, be provided with the fifth arch in the third recess, form second annular gap between the wall of fifth arch and third recess. The structural shape of the pre-pressing piece enables the metal to flow and the filling sequence to be reasonable when the pre-pressing piece is formed. Thereby improving the product quality.
Description
Technical Field
The utility model relates to a technical field is made to accurate wheel hub die forging of aviation, especially relates to a 2014 pre-compaction spare mould of accurate wheel hub die forging of aluminum alloy aviation.
Background
The large airplane is provided with a typical-specification forge piece which is the largest forge piece in the 2014 aluminum alloy aviation precision hub die forge piece, namely a half-wheel (inboard) die forge piece, wherein the half-wheel (inboard) die forge piece is a precision die forge piece and a disc die forge piece, the maximum outer hub size of a part is phi 593.3 × 309.1mm, and the maximum outer contour size of the die forge piece is phi 616.5 × 314.2 mm.
The inboard part of half wheel cabin is as shown in fig. 1 and 2, fig. 1 is the utility model provides a 2014 aluminum alloy aviation precision hub die forging's that provide first side view structure sketch map that the utility model provides, fig. 2 is the utility model provides a second side view structure sketch of 2014 aluminum alloy aviation precision hub die forging is a relatively complicated large-scale aluminum alloy forging, the maximum overall dimension of this forging is phi 600mm × 310mm, the cylindric maximum depth is 240mm, the section of thick bamboo wall minimum is only 7.6mm, the section of thick bamboo wall thickest department is 16mm, be a typical deep cylinder thin wall spare, its basic body is barrel 12, the upper portion of barrel 12 has annular epitaxial portion 11, the top of epitaxial portion 11 has interior recess, interior recess has 9 lugs 14 that are the annular arrangement with the inner wall handing-over department of barrel 12, the bottom of barrel 12 has 9 oval pits 13 that are the annular, specifically, this part is thin in the cylindric bottom, there are 9 evenly distributed's pit 13 simultaneously, the shape is complicated oval part, there are 9 lugs 14 on this upside, this part, the height of this is higher, the height of lug is less, the vertical projection defect area appears, the defect easily, the vertical projection is less.
The half-wheel (inboard) die forging is a precision die forging, namely a disc die forging, and has the advantages of deep cavity, thin wall, high rib, small fillet, more bosses at the inner cavity and the bottom and more complex cavity. The half-wheel (inboard) die forging has a large number of non-machined surfaces, small machining allowance, high surface quality requirement and extremely high dimensional precision requirement; the die forging has deep cavity, high and thin ribs and difficult precision die forging forming; the 2014 alloy is easy to generate coarse grains, and the uniformity of the structure performance is difficult to control; the safety performance requirement of the wheel hub is high, and the comprehensive performance requirement is extremely high. Therefore, the biggest difficulties of the hub die forging are large difficulty in controlling the size and the uniformity of the structure performance.
Therefore, how to provide a prepressing part die of a 2014 aluminum alloy aviation precision hub die forging to improve the product quality is a technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a 2014 accurate wheel hub die forging's of aluminum alloy aviation pre-compaction spare mould to improve product quality.
In order to achieve the above object, the utility model provides a following technical scheme:
a prepressing piece die of a 2014 aluminum alloy aviation precision hub die forging piece, which comprises an upper die and a lower die,
a first bulge is arranged on the upper die, a first groove is arranged on the end surface of the first bulge, the joint of the first groove and the first bulge is an annular inclined plane, a second groove is arranged in the middle of the first groove, a third bulge is arranged in the second groove, a first annular gap is formed between the third bulge and the wall surface of the second groove, the top end of the third bulge is higher than the notch of the second groove,
a fourth groove for forming a lug rudiment is arranged at the joint of the first bulge and the upper die,
the lower die is provided with a die cavity for accommodating the first bulge, the bottom of the die cavity is provided with a second bulge,
a first annular groove and a second annular groove are arranged on the wall surface of the lower die facing the upper die and surrounding the die cavity from inside to outside, the depth of the first annular groove is greater than that of the second annular groove, the first annular groove is communicated with the die cavity, the second annular groove is communicated with the first annular groove,
a third groove is formed in the middle of the bottom of the die cavity, a fifth bulge is arranged in the third groove, a second annular gap is formed between the fifth bulge and the wall surface of the third groove, and the top end of the fifth bulge is higher than a notch of the third groove.
Preferably, the upper die is provided with a plurality of standard key slots, and the standard key slots are pairwise symmetrical to the central line of the upper die.
Preferably, the upper die is provided with a universal die tail.
Preferably, the upper die and the lower die are both rectangular.
Preferably, the second protrusion is provided with a through hole for the ejector rod to pass through, the top end of the ejector rod is provided with a fourth protrusion, the fourth protrusion is smoothly connected with the second protrusion, and the third groove is formed in the fourth protrusion.
Preferably, a lock catch is arranged on each diagonal of the upper die, and a lock groove matched with the lock catch is formed in the lower die.
Preferably, the accuracy of the lock catch and the lock groove is +/-0.3 mm.
Preferably, the first annular groove is provided with a positioning groove.
Preferably, the first protrusion is a cylindrical protrusion.
Preferably, the cross section of the second protrusion is trapezoidal.
The utility model provides a pre-compaction piece mould of 2014 aluminum alloy aviation precision wheel hub die forging, including last mould and lower mould, be provided with first arch on the last mould, the terminal surface of first arch is provided with first recess, the junction of first recess with first arch is the annular inclined plane, the middle part of first recess is provided with the second recess, be provided with the third arch in the second recess, form first annular clearance between the third arch and the wall of second recess, the top of third arch is higher than the notch of second recess, the junction of first arch with the last mould is provided with the fourth recess that is used for forming lug rudiment, be provided with on the lower mould and be used for holding the die cavity of first arch, the bottom of die cavity is provided with the second arch, the lower mould is towards on the wall of last mould and surround the die cavity is provided with first annular recess and second annular recess from inside to outside, the depth of the first annular groove is larger than that of the second annular groove, the first annular groove is communicated with the die cavity, the second annular groove is communicated with the first annular groove, a third groove is formed in the middle of the bottom of the die cavity, a fifth bulge is arranged in the third groove, a second annular gap is formed between the fifth bulge and the wall surface of the third groove, and the top end of the fifth bulge is higher than the notch of the third groove.
The utility model provides a pre-compaction spare mould of accurate wheel hub die forging of 2014 aluminum alloy aviation, its structural shape makes during the pre-compaction spare shaping, and the metal flows comparatively rationally, and the filling order tends to rationally more, and final shaping result is filled fully. Thereby improving the product quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a first side view structure schematic diagram of an 2014 aluminum alloy aviation precision hub die forging provided in the embodiment of the present invention;
fig. 2 is a second side view structural schematic diagram of the 2014 aluminum alloy aviation precision hub die forging provided in the embodiment of the present invention;
fig. 3 is a schematic side view of a pre-pressing piece die of the 2014-aluminum alloy aviation precision hub die forging provided in the embodiment of the present invention;
fig. 4 is the embodiment of the utility model provides a 2014 aluminum alloy aviation precision hub die forging's pre-compaction piece mould's that cut-away structure schematic diagram is provided.
In the above FIGS. 1-4:
the die comprises an outer extension part 11, a cylinder body 12, an oval concave 13, a lug 14, an upper die 2, a first bulge 21, a lock catch 22, a standard key groove 23, a universal die tail 24, a first groove 25, a third bulge 26, a first annular gap 27, an annular inclined surface 28, a fourth groove 29, a lower die 3, a die cavity 31, a lock groove 32, a first annular groove 33, a second bulge 34, a mandril 35, a second annular groove 36, a fourth bulge 37, a fifth bulge 38 and a second annular gap 39.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 3 to 4, fig. 3 is a schematic side view of a pre-pressing piece mold of an 2014 aluminum alloy aviation precision hub die forging according to an embodiment of the present invention; fig. 4 is the embodiment of the utility model provides a 2014 aluminum alloy aviation precision hub die forging's pre-compaction piece mould's that cut-away structure schematic diagram is provided.
The embodiment of the utility model provides a pre-compaction piece mould of 2014 aluminum alloy aviation precision wheel hub die forging, including last mould 2 and lower mould 3, be provided with first arch 21 on last mould 2, the terminal surface of first arch 21 is provided with first recess 25, the junction of first recess 25 and first arch 21 is annular inclined plane 25, the middle part of first recess 25 is provided with the second recess, be provided with third arch 26 in the second recess, form first annular clearance 27 between the wall of third arch 26 and second recess, the top of third arch 26 is higher than the notch of second recess, the junction of first arch 21 and last mould 2 is provided with fourth recess 29 for forming lug 14 rudiment, be provided with the die cavity 31 that is used for holding first arch 21 on the lower mould 3, the bottom of die cavity 31 is provided with second arch 34, 3 is provided with first annular recess 33 and second annular recess 36 from inside to outside towards on the wall of last mould 2 and around die cavity 31, the depth of the first annular groove 33 is greater than that of the second annular groove 36, the first annular groove 33 is communicated with the mold cavity 31, the second annular groove 36 is communicated with the first annular groove 33, a third groove is formed in the middle of the bottom of the mold cavity 31, a fifth bulge 38 is arranged in the third groove, a second annular gap 39 is formed between the fifth bulge 38 and the wall surface of the third groove, and the top end of the fifth bulge 38 is higher than the notch of the third groove. The first annular groove 33 is used to form the preliminary but not completely formed extension 11 and the second annular groove 34 is used to receive the metal that overflows from the first annular groove 33.
The embodiment of the utility model provides a 2014 aluminium alloy aviation precision wheel hub die forging's pre-compaction spare mould, its structural shape makes when the pre-compaction spare shaping, and the metal flows comparatively rationally, and the filling order tends to rationally more, and final shaping is filled fully as a result, and shaping load has also obtained the decline moreover. Thereby improving the product quality.
Specifically, the upper die 2 is provided with a plurality of standard key slots 23, and the standard key slots 23 are pairwise symmetrical to the central line of the upper die 2. The upper die 2 is provided with a universal die tail 24. The upper die 2 and the lower die 3 are both rectangular.
Specifically, a through hole for the ejector rod 35 to pass through is formed in the second protrusion 34, a fourth protrusion 37 is arranged at the top end of the ejector rod 35, the fourth protrusion 37 is smoothly connected with the second protrusion 34, and the third groove is formed in the fourth protrusion 37.
Specifically, a lock catch 22 is respectively arranged at one diagonal of the upper die 2, and a lock groove 32 matched with the lock catch 22 is arranged on the lower die 3. The accuracy of the shackle 22 and the locking groove 32 is ± 0.3 mm.
Specifically, the first annular groove 33 is provided with a positioning groove. The first projection 21 is a cylindrical projection. The second protrusion 34 has a trapezoidal cross section.
In actual design, after the pre-pressing piece is determined, the main structure and size of the die can be determined according to the size of the forging piece and the pressing machine module, and therefore the final pressing die is obtained through three-dimensional modeling. The die structure of the forging is mainly designed by considering the following aspects in combination with a press:
(1) a module:
the mould module is provided with various forming impressions, the size of the impressions is determined by a hot forging drawing, the matching problem of a press is considered, the mould module is used for heat preservation of a later mould, the size of the mould module is 1500 × 1500 × 1030mm, and the mould module is arranged one above the other.
(2) Keyway and die tail:
in order to secure the die block to the press, it is necessary to key the die block and the die tail at the time of designing the die. The positions of the keyways should be symmetrical pairwise with the center line of the module for main function. According to specific press and module size, can be divided into local mould tail and general mould tail 24 with the mould tail, because the mould appearance is great, weight is heavier, adopts general mould tail 24 as this mould tail to used press equipment, frock etc. simultaneously. The key slot is a standard key slot 23.
(3) A demoulding device:
in order to facilitate a worker to take out the forge piece from the die after forging and forming, a jaw or an ejector rod is designed when the die is designed, the forge piece is left on a lower die after the general forge piece is formed, and the part with low height of the forge piece (a die cavity is not deep) and thick flash is demoulded in a jaw mode, so that the operation is convenient, and the demould is easy; when the height of the forge piece is high (the mold cavity is deep) and the flash is small, demolding is carried out by adopting an ejector rod 35. Aiming at the wheel hub forging, because the shape of the wheel hub forging is cylindrical and the drawing die inclination of the forging is small, the demoulding is difficult by adopting a jaw mode, so that the wheel is demoulded by adopting an ejector rod demoulding mode, and the consistency of the shapes of an ejector rod cavity and the bottom of the forging is designed, thereby ensuring the precision of the wheel hub after forging.
(4) Other designs are as follows:
in order to ensure the precision after forging, the hub die is designed as follows: because the common die design adopts the guide post and the guide post hole to be matched and positioned, the precision is +/-2 mm, and the high-precision requirement of the hub precision die forging piece cannot be met, a locking structure with higher precision requirement is added, and the precision is +/-0.3 mm; because the wheel hub forging is the revolution solid, top lug and bottom recess department are the non-machined surface, for making it not take place the skew in the shaping in-process location, wheel hub mould design constant head tank carries out the accurate positioning.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A prepressing piece die of a 2014 aluminum alloy aviation precision hub die forging is characterized by comprising an upper die and a lower die,
a first bulge is arranged on the upper die, a first groove is arranged on the end surface of the first bulge, the joint of the first groove and the first bulge is an annular inclined plane, a second groove is arranged in the middle of the first groove, a third bulge is arranged in the second groove, a first annular gap is formed between the third bulge and the wall surface of the second groove, the top end of the third bulge is higher than the notch of the second groove,
a fourth groove for forming a lug rudiment is arranged at the joint of the first bulge and the upper die,
the lower die is provided with a die cavity for accommodating the first bulge, the bottom of the die cavity is provided with a second bulge,
a first annular groove and a second annular groove are arranged on the wall surface of the lower die facing the upper die and surrounding the die cavity from inside to outside, the depth of the first annular groove is greater than that of the second annular groove, the first annular groove is communicated with the die cavity, the second annular groove is communicated with the first annular groove,
a third groove is formed in the middle of the bottom of the die cavity, a fifth bulge is arranged in the third groove, a second annular gap is formed between the fifth bulge and the wall surface of the third groove, and the top end of the fifth bulge is higher than a notch of the third groove.
2. The pre-pressing piece die of the 2014-aluminum alloy aviation precision hub die forging of claim 1, wherein the upper die is provided with a plurality of standard key slots, and the standard key slots are pairwise symmetrical to the central line of the upper die.
3. The pre-pressing piece die of the 2014 aluminum alloy aviation precision hub die forging of claim 1, wherein the upper die is provided with a universal die tail.
4. The pre-pressing piece die of the 2014 aluminum alloy aviation precision hub die forging of claim 1, wherein the upper die and the lower die are both rectangular.
5. The pre-pressing piece die of the 2014 aluminum alloy aviation precision hub die forging of claim 1, wherein the second protrusion is provided with a through hole for a mandril to pass through, the top end of the mandril is provided with a fourth protrusion, the fourth protrusion is smoothly connected with the second protrusion, and the third groove is formed in the fourth protrusion.
6. The pre-pressing piece die of the 2014 aluminum alloy aviation precision hub die forging of claim 1, wherein one lock catch is arranged at each diagonal of the upper die, and a lock groove matched with the lock catch is formed in the lower die.
7. The pre-pressing piece die of 2014 aluminum alloy aviation precision hub die forging of claim 6, wherein the precision of the lock catch and the lock groove is +/-0.3 mm.
8. The pre-pressing piece die of the 2014 aluminum alloy aviation precision hub die forging piece as claimed in claim 1, wherein a positioning groove is arranged on the first annular groove.
9. The pre-pressing piece die of the 2014 aluminum alloy aviation precision hub die forging of claim 1, wherein the first protrusion is a cylindrical protrusion.
10. The pre-pressing piece die of the 2014 aluminum alloy aviation precision hub die forging piece as claimed in claim 1, wherein the cross section of the second protrusion is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086237.7U CN211191839U (en) | 2019-11-28 | 2019-11-28 | Pre-compaction piece die of 2014 aluminum alloy aviation precision hub die forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086237.7U CN211191839U (en) | 2019-11-28 | 2019-11-28 | Pre-compaction piece die of 2014 aluminum alloy aviation precision hub die forging |
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| Publication Number | Publication Date |
|---|---|
| CN211191839U true CN211191839U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922086237.7U Active CN211191839U (en) | 2019-11-28 | 2019-11-28 | Pre-compaction piece die of 2014 aluminum alloy aviation precision hub die forging |
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| Country | Link |
|---|---|
| CN (1) | CN211191839U (en) |
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- 2019-11-28 CN CN201922086237.7U patent/CN211191839U/en active Active
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