CN114289558B - Gear correction die with annular groove - Google Patents
Gear correction die with annular groove Download PDFInfo
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- CN114289558B CN114289558B CN202111384026.7A CN202111384026A CN114289558B CN 114289558 B CN114289558 B CN 114289558B CN 202111384026 A CN202111384026 A CN 202111384026A CN 114289558 B CN114289558 B CN 114289558B
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- annular groove
- gear
- fixing block
- upper pressing
- clamping plate
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- 238000003825 pressing Methods 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000003860 storage Methods 0.000 claims abstract description 5
- 238000004663 powder metallurgy Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 description 8
- 230000001788 irregular Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The invention discloses a gear correction die with an annular groove, which comprises an upper fixing block, a lower fixing block and a female die, wherein the upper fixing block and the lower fixing block are respectively used for fixing two ends of a gear, the female die comprises an annular groove clamping plate and an upper pressing plate, the annular groove clamping plate is clamped in the annular groove of the gear and extends out of the annular groove, a sawtooth part storage groove is formed in the annular groove clamping plate, the upper pressing plate is arranged above the annular groove clamping plate, and the lower surface of the upper pressing plate is in seamless contact with the upper surface of the annular groove clamping plate and the sawtooth part. The invention can effectively solve the problem of inclination generated in the preparation process of the gear with the annular groove, and has the advantages of simple method, convenient operation and lower cost.
Description
Technical Field
The invention relates to the field of gear machining, in particular to a gear straightening die with an annular groove.
Background
At present, most gears are cast and formed, and the cast and formed process has the advantages of time saving, simplicity and economy for regular gears, but is not practical for irregular gears, because the irregular gears are difficult to realize demoulding after casting, and the forced demoulding is easy to cause damage to irregular parts. Thus, the currently popular powder metallurgy forming technique is advantageous for irregular gears.
Powder metallurgy forming is one of the basic processes in powder metallurgy production, with the aim of pressing loose (metal, ceramic, or other material) powders in a mold to produce semi-finished products of predetermined geometry, size, solidity and strength, and then demoulding to obtain semi-finished blanks. The semi-finished product is changed into a finished product at least through a subsequent sintering process, but during the sintering process, the sawtooth part of the gear, which is close to the annular groove, is easy to tilt or incline inwards, and particularly, the phenomenon that the sawtooth part is deviated is obvious for irregular gears with the annular groove, such as a reel of a fishing rod, and the like. Therefore, the gears are generally corrected after being produced by adopting a powder metallurgy technology, and a correcting die for the gears is absent in the prior art.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide the gear correction die with the annular groove, which can effectively solve the problem of inclination generated in the preparation process of the gear with the annular groove, and has the advantages of simple method, convenient operation and lower cost.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a gear correction mould with cyclic annular groove, includes fixed block, lower fixed block and female die, the both ends of gear are fixed respectively to last fixed block, lower fixed block, the female die includes cyclic annular groove cardboard and top board, cyclic annular groove cardboard card is established in the cyclic annular inslot of gear and is stretched out outside the cyclic annular groove, is equipped with sawtooth part storage tank on the cyclic annular groove cardboard, cyclic annular groove cardboard top is located to the top board, the lower surface of top board and the upper surface and the sawtooth part seamless contact of cyclic annular groove cardboard.
The invention provides a further technical scheme that: the gear straightening die with the annular groove further comprises an upper pressing block, the upper pressing block is arranged in the middle of the upper pressing plate, and the upper pressing block is directly placed on the press to press the upper pressing plate.
Further, the upper fixing block and the lower fixing block are of cylindrical structures, a through hole is formed in the middle of the upper pressing plate, and the upper pressing plate is sleeved on the upper fixing block through the through hole.
Further, the shape and the size radius of the upper pressing block are the same as those of the lower fixing block.
Further, the annular groove clamping plate is formed by splicing two semicircular clamping plates.
Further, the two semicircular clamping plates are buckled through the grooves and the protrusions.
Further, the annular groove clamping plate and the upper pressing plate are square plates, and the annular groove clamping plate and the upper pressing plate are identical in length.
Further, the annular groove clamping plate and the upper pressing plate are provided with stress notches.
Further, the upper fixing block, the lower fixing block and the female die are all of metal structures.
Further, the gear is prepared by a powder metallurgy process.
Compared with the prior art, the invention has the advantages that: according to the invention, the gear is fixed in the female die by arranging the upper fixed block, the lower fixed block and the female die, and then the upper fixed block and the lower fixed block are pressed by the press to achieve the purpose of pressing the female die, so that the gear is finally corrected, the problem of inclination generated in the preparation process of the gear with the annular groove can be effectively solved, and the method is simple, convenient to operate and low in cost; in addition, the structure of the female die can ensure that the sawtooth part of the gear is corrected and the structure of the annular groove is not damaged.
Drawings
FIG. 1 is a schematic diagram of a corrective die in accordance with the present invention;
FIG. 2 is a schematic diagram of the structure of the correction mold according to the present invention in which the annular groove clamping plate cooperates with the gear;
FIG. 3 is a schematic view of the structure of the annular groove clamping plate in the correcting die of the invention;
FIG. 4 is a schematic view of the structure of the upper platen in the correction mold of the present invention.
Legend description:
1. an upper fixing block; 2. a lower fixing block; 3. a female die; 31. an annular groove clamping plate; 311. a sawtooth portion storage tank; 32. an upper press plate; 321. a through hole; 4. pressing into blocks; 5. a gear; 6. stress notch.
Detailed Description
The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the invention, but the scope of the invention is not limited to the specific embodiments shown.
Referring to fig. 1-4, a gear straightening die with annular grooves comprises an upper fixing block 1, a lower fixing block 2, a female die 3 and an upper pressing block 4, wherein the upper fixing block 1 and the lower fixing block 2 are respectively used for fixing two ends of a gear 5, the female die 3 comprises an annular groove clamping plate 31 and an upper pressing plate 32, the annular groove clamping plate 31 is clamped in an annular groove 51 of the gear 5 and extends out of the annular groove 51, a sawtooth part storage groove 311 is formed in the annular groove clamping plate 31, the upper pressing plate 32 is arranged above the annular groove clamping plate 31, the lower surface of the upper pressing plate 32 is in seamless contact with the upper surface and the sawtooth part of the annular groove clamping plate 31, the female die 3 is mainly used for placing the gear 5, and the female die 3 is relatively good in laminating performance with various structures of the gear 5.
In this embodiment, the upper pressing block 4 is disposed in the middle of the upper pressing plate 32, and the upper pressing block 4 is directly placed on the press to press the upper pressing plate 32, so that the arrangement of the upper pressing block 4 is beneficial to improving the uniform pressing of the female die 3.
In this embodiment, the upper fixing block 1 and the lower fixing block 2 are both in cylindrical structures, the middle of the upper pressing plate 32 is provided with a through hole 321, the upper pressing plate 32 is sleeved on the upper fixing block 1 through the through hole 321, the functions of the upper fixing block 1 and the lower fixing block 2 are mainly used for fixing the female die 3, and then the purpose of pressing the female die 3 is achieved by pressing the upper fixing block 1 and the lower fixing block 2 through a pressing machine, so that the gear 5 is finally corrected.
In this embodiment, the radius of the shape and the size of the upper pressing block 4 is the same as that of the lower fixing block 2, which is beneficial to ensuring the consistency of the pressure of the upper surface and the lower surface of the female die 3, and further beneficial to improving the correcting effect of the gear 5.
In this embodiment, the annular groove clamping plate 31 is formed by splicing two semicircular clamping plates, so that the annular groove clamping plate is convenient to operate. The two semicircular clamping plates are buckled through the grooves and the protrusions.
In this embodiment, the annular groove clamping plate 31 and the upper pressing plate 32 are square plates, and the lengths of the two plates are the same, so that the annular groove clamping plate 31 and the upper pressing plate 32 can generate equal uniform pressure to the gear 5 therein. The annular groove clamping plate 31 and the upper pressing plate 32 are both provided with the stress notch 6, and the stress notch 6 can well disperse stress generated by pressurization, so that the damage of the gear 5 caused by the concentration of the stress on the gear 5 is avoided.
In this embodiment, go up fixed block 1, lower fixed block 2 and female die 3 and be metal construction, intensity is higher, does benefit to through beating the drawing of patterns, also does benefit to guaranteeing that gear 5's correction effect is better.
The gear 5 in this embodiment may be a reel on a fishing rod, or may be other gear structures with annular grooves in the middle, and the gear in this embodiment is manufactured by a powder metallurgy process.
Claims (8)
1. A gear correction mould with annular groove, its characterized in that: the die comprises an upper fixing block, a lower fixing block and a die, wherein the upper fixing block and the lower fixing block respectively fix two ends of a gear, the die comprises an annular groove clamping plate and an upper pressing plate, the annular groove clamping plate is clamped in an annular groove of the gear and extends out of the annular groove, a sawtooth part storage groove is formed in the annular groove clamping plate, the upper pressing plate is arranged above the annular groove clamping plate, and the lower surface of the upper pressing plate is in seamless contact with the upper surface of the annular groove clamping plate and the sawtooth part; the pressing device comprises a pressing machine, and is characterized by further comprising an upper pressing block, wherein the upper pressing block is arranged in the middle of the upper pressing plate, and is directly placed on the pressing machine to press the upper pressing plate, and the shape and the size radius of the upper pressing block are the same as those of the lower fixing block.
2. The gear straightening die with an annular groove according to claim 1, characterized in that: the upper fixing block and the lower fixing block are of cylindrical structures, a through hole is formed in the middle of the upper pressing plate, and the upper pressing plate is sleeved on the upper fixing block through the through hole.
3. The gear straightening die with an annular groove according to claim 1, characterized in that: the annular groove clamping plate is formed by splicing two semicircular clamping plates.
4. A gear straightening die with an annular groove according to claim 3, characterized in that: the two semicircular clamping plates are buckled through the grooves and the protrusions.
5. The gear straightening die with an annular groove according to claim 1, characterized in that: the annular groove clamping plate and the upper pressing plate are square plates, and the annular groove clamping plate and the upper pressing plate are identical in length.
6. The gear straightening die with an annular groove according to claim 1, characterized in that: and stress notches are formed in the annular groove clamping plate and the upper pressing plate.
7. The gear straightening die with an annular groove according to claim 1, characterized in that: the upper fixing block, the lower fixing block and the female die are all of metal structures.
8. The gear straightening die with an annular groove according to claim 1, characterized in that: the gear is prepared by a powder metallurgy process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111384026.7A CN114289558B (en) | 2021-11-19 | 2021-11-19 | Gear correction die with annular groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111384026.7A CN114289558B (en) | 2021-11-19 | 2021-11-19 | Gear correction die with annular groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114289558A CN114289558A (en) | 2022-04-08 |
| CN114289558B true CN114289558B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111384026.7A Active CN114289558B (en) | 2021-11-19 | 2021-11-19 | Gear correction die with annular groove |
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| CN (1) | CN114289558B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR730606A (en) * | 1932-01-27 | 1932-08-18 | Nat Broach & Mach | Method and apparatus for grinding gears |
| JPH0985385A (en) * | 1995-09-26 | 1997-03-31 | Musashi Seimitsu Ind Co Ltd | Production of bevel gear and sizing die thereof |
| CN205342128U (en) * | 2015-12-15 | 2016-06-29 | 常州金安冶金设备有限公司 | Parallelly connected locking gear keyway manufacturing installation |
| CN108555069A (en) * | 2018-05-21 | 2018-09-21 | 中信戴卡股份有限公司 | A kind of wheel orthopedic equipment |
| CN212070013U (en) * | 2019-12-27 | 2020-12-04 | 兰州金浩机械制造有限公司 | Powder metallurgy gear shaping device |
| CN112475475A (en) * | 2020-11-25 | 2021-03-12 | 南京工业大学 | Method for online measurement and correction of alignment degree of herringbone gear |
-
2021
- 2021-11-19 CN CN202111384026.7A patent/CN114289558B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR730606A (en) * | 1932-01-27 | 1932-08-18 | Nat Broach & Mach | Method and apparatus for grinding gears |
| JPH0985385A (en) * | 1995-09-26 | 1997-03-31 | Musashi Seimitsu Ind Co Ltd | Production of bevel gear and sizing die thereof |
| CN205342128U (en) * | 2015-12-15 | 2016-06-29 | 常州金安冶金设备有限公司 | Parallelly connected locking gear keyway manufacturing installation |
| CN108555069A (en) * | 2018-05-21 | 2018-09-21 | 中信戴卡股份有限公司 | A kind of wheel orthopedic equipment |
| CN212070013U (en) * | 2019-12-27 | 2020-12-04 | 兰州金浩机械制造有限公司 | Powder metallurgy gear shaping device |
| CN112475475A (en) * | 2020-11-25 | 2021-03-12 | 南京工业大学 | Method for online measurement and correction of alignment degree of herringbone gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114289558A (en) | 2022-04-08 |
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