CN106002114A - Gear machining method - Google Patents
Gear machining method Download PDFInfo
- Publication number
- CN106002114A CN106002114A CN201610354273.5A CN201610354273A CN106002114A CN 106002114 A CN106002114 A CN 106002114A CN 201610354273 A CN201610354273 A CN 201610354273A CN 106002114 A CN106002114 A CN 106002114A
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- China
- Prior art keywords
- gear
- sand
- working method
- tooth
- temperature
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a gear machining method. The gear machining method comprises following steps: precoated sand is taken and shot into a valve plate mold cavity with the temperature of 190 DEG C to 195 DEG C through a sand shooter, heat insulation is carried out, the precoated sand is cured, drawing is carried out, and a precoated sand shell mold is obtained; secondly, the precoated sand shell mold is subject to mold assembly and is vertically clamped, and a casting mold cavity is obtained; thirdly, molten iron is taken, then, the molten iron is casted into the casting mold cavity, and a casting is obtained; fourthly, the casting is taken out, cooling and shot blasting finishing are carried out, and a gear is obtained; fifthly, gear fine machining is carried out; and according to a preparing method, the phenomenon of tooth expansion caused by a traditional production process is overcome, the size precision of the gear is greatly improved by more than 40%, the preparing method ensures stability of a gear metallographic structure, the production period is shortened by more than 50%, the production efficiency is improved by more than 60%, and the production cost is reduced by more than 50%; and the technology is perfect, the gear quality can be ensured, the rejection rate is reduced, and the problem that resources of an enterprise are wasted is effectively solved.
Description
Technical field
The invention belongs to Gear Processing field, be specifically related to a kind of Gearmaking Technology.
Background technology
Gear application in machine driving and whole mechanical field is extremely extensive, but the processing of prior art middle gear
Technique imperfection, cause the gear quality produced undesirable, does not reaches use requirement, and percent defective is high, causes unnecessary waste to enterprise.
Summary of the invention
Goal of the invention: present invention aims to the deficiencies in the prior art, it is provided that a kind of gear working method.
Technical scheme: in order to reach foregoing invention purpose, the present invention is specifically achieved like this: a kind of gear working method, comprises the steps:
1) taking precoated sand by penetrate sand machine injecting temperature is 190-195 DEG C of valve plate die cavity, and insulation makes precoated sand curing molding, molding, obtains resin-coated sand shell mould
；
2) by resin-coated sand shell mould mould assembly vertical clamping, cast die cavity is formed；
3) take ferrum liquid, afterwards by iron liquid casting to cast die cavity, obtain foundry goods；
4) foundry goods is taken, cooling, ball blast finishing, obtain gear；
5) gear finishing；
6) end relief deburring: increment is trimmed to definite shape on request, removes tooth both sides sharp edge, burr simultaneously；
7) heat treatment: use quenched, carburizing and quenching or high-frequency quenching processing method；
8) use the method for roll flute, gear honing or gear lapping that the unfinished work after heat treatment carries out tooth Profile Machining again；
9) the cleaning flank of tooth: remove the burr of the flank of tooth, dirt；
10) Pair test of finished gear or final inspection: check its geometric accuracy, contact area, noise by drawing；Match on verifier rolling, check position, contact area, size and shape, and check noise, mark by coupling gear, in order to assemble use in pairs；
11) antirust and packaging is put in storage.
Preferably, in step 1), described in penetrate the Stress control of sand machine be 1.2Mpa-1.5Mpa.
Preferably, in step 1), described in penetrate the temperature of sand machine and control as 180-200 DEG C.
Preferably, in step 1), penetrating sand machine and penetrating the number of times of sand is 2-3 time, and the interval time every time penetrating sand is the 7-8 second.
Preferably, in step 1), described holding temperature is 196-200 DEG C, and the time is the 10-15 second.
Preferably, in step 3), the temperature of described ferrum liquid is 1450-1500 DEG C.
Preferably, step) in, it is calculated in mass percent, in described ferrum liquid, carbon≤3%, silicon≤2%, manganese≤0.3%, phosphorus≤0.1%.
The beneficial effects of the present invention is: use the technology of the present invention, it is ensured that while gear teeth face dimensional accuracy meets requirement, it is achieved the high intensity of forming gear.The present invention it is critical only that the selection of temperature, the mode of cast and the selection of time before iron liquid casting.Present invention achieves following technique effect
: the preparation method of the present invention overcomes the tooth phenomenon that rises that traditional processing technology causes, it is greatly improved the dimensional accuracy of gear, promote more than 40%, the preparation method of the present invention ensure that stablizing of gear metallographic structure, production cycle shortens more than 50%, improving productivity more than 60%, production cost reduces by more than 50%；Perfect technology, it is possible to ensure the quality of gear, rate of reducing the number of rejects and seconds, the effective problem of resource waste solving enterprise.
Detailed description of the invention
Embodiment 1:
A kind of gear working method, comprises the steps:
1) taking precoated sand by penetrate sand machine injecting temperature is 190 DEG C of valve plate die cavitys, insulation makes precoated sand curing molding, molding, obtains resin-coated sand shell mould, described in penetrate the Stress control of sand machine be 1.2Mpa, it is 180 DEG C that temperature controls, penetrating sand machine and penetrating the number of times of sand is 2 times, and the interval time every time penetrating sand is 7 seconds, and described insulation is specially, keeping temperature is 196 DEG C, and the time is 10 seconds；
2) by resin-coated sand shell mould mould assembly vertical clamping, cast die cavity is formed；
3) taking ferrum liquid, afterwards by iron liquid casting to cast die cavity, obtain foundry goods, the temperature of described ferrum liquid is 1450 DEG C, is calculated in mass percent, in described ferrum liquid, and carbon≤3%, silicon≤2%, manganese≤0.3%, phosphorus≤0.1%；
4) foundry goods is taken, cooling, ball blast finishing, obtain gear；
5) gear finishing；
6) end relief deburring: increment is trimmed to definite shape on request, removes tooth both sides sharp edge, burr simultaneously；
7) heat treatment: use quenched, carburizing and quenching or high-frequency quenching processing method；
8) use the method for roll flute, gear honing or gear lapping that the unfinished work after heat treatment carries out tooth Profile Machining again；
9) the cleaning flank of tooth: remove the burr of the flank of tooth, dirt；
10) Pair test of finished gear or final inspection: check its geometric accuracy, contact area, noise by drawing；Match on verifier rolling, check position, contact area, size and shape, and check noise, mark by coupling gear, in order to assemble use in pairs；
11) antirust and packaging is put in storage.
The effect of the present embodiment is: overcome the tooth phenomenon that rises that traditional processing technology causes, it is greatly improved the dimensional accuracy of gear, improve 30%, the preparation method of the present invention ensure that stablizing of gear metallographic structure, production cycle shortens 40%, improving productivity 50%, production cost reduces by 40%.
Embodiment 2:
A kind of gear working method, comprises the steps:
1) taking precoated sand by penetrate sand machine injecting temperature is 193 DEG C of valve plate die cavitys, insulation makes precoated sand curing molding, molding, obtains resin-coated sand shell mould, described in penetrate the Stress control of sand machine be 1.35Mpa, it is 190 DEG C that temperature controls, penetrating sand machine and penetrating the number of times of sand is 3 times, and the interval time every time penetrating sand is 8 seconds, and described insulation is specially, keeping temperature is 198 DEG C, and the time is 13 seconds；
2) by resin-coated sand shell mould mould assembly vertical clamping, cast die cavity is formed；
3) taking ferrum liquid, afterwards by iron liquid casting to cast die cavity, obtain foundry goods, the temperature of described ferrum liquid is 1480 DEG C, is calculated in mass percent, in described ferrum liquid, and carbon≤3%, silicon≤2%, manganese≤0.3%, phosphorus≤0.1%；
4) foundry goods is taken, cooling, ball blast finishing, obtain gear；
5) gear finishing；
6) end relief deburring: increment is trimmed to definite shape on request, removes tooth both sides sharp edge, burr simultaneously；
7) heat treatment: use quenched, carburizing and quenching or high-frequency quenching processing method；
8) use the method for roll flute, gear honing or gear lapping that the unfinished work after heat treatment carries out tooth Profile Machining again；
9) the cleaning flank of tooth: remove the burr of the flank of tooth, dirt；
10) Pair test of finished gear or final inspection: check its geometric accuracy, contact area, noise by drawing；Match on verifier rolling, check position, contact area, size and shape, and check noise, mark by coupling gear, in order to assemble use in pairs；
11) antirust and packaging is put in storage.
The effect of the present embodiment is: overcome the tooth phenomenon that rises that traditional processing technology causes, it is greatly improved the dimensional accuracy of gear, improve 35%, the preparation method of the present invention ensure that stablizing of gear metallographic structure, production cycle shortens 45%, improving productivity 55%, production cost reduces by 45%.
Embodiment 3:
A kind of gear working method, comprises the steps:
1) taking precoated sand by penetrate sand machine injecting temperature is 195 DEG C of valve plate die cavitys, insulation makes precoated sand curing molding, molding, obtains resin-coated sand shell mould, described in penetrate the Stress control of sand machine be 1.5Mpa, it is 200 DEG C that temperature controls, penetrating sand machine and penetrating the number of times of sand is 3 times, and the interval time every time penetrating sand is 8 seconds, and described insulation is specially, keeping temperature is 200 DEG C, and the time is 15 seconds；
2) by resin-coated sand shell mould mould assembly vertical clamping, cast die cavity is formed；
3) taking ferrum liquid, afterwards by iron liquid casting to cast die cavity, obtain foundry goods, the temperature of described ferrum liquid is 1500 DEG C, is calculated in mass percent, in described ferrum liquid, and carbon≤3%, silicon≤2%, manganese≤0.3%, phosphorus≤0.1%；
4) foundry goods is taken, cooling, ball blast finishing, obtain gear；
5) gear finishing；
6) end relief deburring: increment is trimmed to definite shape on request, removes tooth both sides sharp edge, burr simultaneously；
7) heat treatment: use quenched, carburizing and quenching or high-frequency quenching processing method；
8) use the method for roll flute, gear honing or gear lapping that the unfinished work after heat treatment carries out tooth Profile Machining again；
9) the cleaning flank of tooth: remove the burr of the flank of tooth, dirt；
10) Pair test of finished gear or final inspection: check its geometric accuracy, contact area, noise by drawing；Match on verifier rolling, check position, contact area, size and shape, and check noise, mark by coupling gear, in order to assemble use in pairs；
11) antirust and packaging is put in storage.
The effect of the present embodiment is: overcome the tooth phenomenon that rises that traditional processing technology causes, it is greatly improved the dimensional accuracy of gear, improve 40%, the preparation method of the present invention ensure that stablizing of gear metallographic structure, production cycle shortens 50%, improving productivity 60%, production cost reduces by 50%.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvement, and these improvement also should be regarded as protection scope of the present invention.
Claims (7)
1. a gear working method, it is characterised in that comprise the steps:
1) taking precoated sand by penetrate sand machine injecting temperature is 190-195 DEG C of valve plate die cavity, and insulation makes precoated sand curing molding, molding, obtains resin-coated sand shell mould；
2) by resin-coated sand shell mould mould assembly vertical clamping, cast die cavity is formed；
3) take ferrum liquid, afterwards by iron liquid casting to cast die cavity, obtain foundry goods
；
4) foundry goods is taken, cooling, ball blast finishing, obtain gear；
5) gear finishing；
6) end relief deburring: increment is trimmed to definite shape on request, removes tooth both sides sharp edge, burr simultaneously；
7) heat treatment: use quenched, carburizing and quenching or high-frequency quenching processing method；
8) use the method for roll flute, gear honing or gear lapping that the unfinished work after heat treatment carries out tooth Profile Machining again；
9) the cleaning flank of tooth: remove the burr of the flank of tooth, dirt；
10) Pair test of finished gear or final inspection
: check its geometric accuracy, contact area, noise by drawing；Match on verifier rolling, check position, contact area, size and shape, and check noise, mark by coupling gear, in order to assemble use in pairs；
11) antirust and packaging is put in storage.
2. according to the gear working method described in claim 1, it is characterised in that in step 1), described in penetrate the Stress control of sand machine be 1.2Mpa-1.5Mpa.
3. according to the gear working method described in claim 1, it is characterised in that in step 1), described in penetrate the temperature of sand machine and control as 180-200 DEG C.
4., according to the gear working method described in claim 1, it is characterised in that in step 1), penetrating sand machine and penetrating the number of times of sand is 2-3 time, and the interval time every time penetrating sand is the 7-8 second.
5., according to the gear working method described in claim 1, it is characterised in that in step 1), described insulation is specifically, keep temperature to be 196-200 DEG C, and the time is the 10-15 second.
6., according to the gear working method described in claim 1, it is characterised in that in step 3), the temperature of described ferrum liquid is 1450-1500 DEG C.
7. according to the gear working method described in claim 1, it is characterised in that step) in, it is calculated in mass percent, in described ferrum liquid, carbon≤3%, silicon≤2%, manganese≤0.3%, phosphorus≤0.1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354273.5A CN106002114A (en) | 2016-05-25 | 2016-05-25 | Gear machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354273.5A CN106002114A (en) | 2016-05-25 | 2016-05-25 | Gear machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106002114A true CN106002114A (en) | 2016-10-12 |
Family
ID=57094651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610354273.5A Pending CN106002114A (en) | 2016-05-25 | 2016-05-25 | Gear machining method |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637613A (en) * | 2018-03-24 | 2018-10-12 | 徐州迈斯特机械科技有限公司 | A kind of method for processing sector gear |
| CN108994665A (en) * | 2018-08-06 | 2018-12-14 | 合肥银泉铸造有限责任公司 | A kind of spiral bevel gear finishing process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046030A (en) * | 2000-08-04 | 2002-02-12 | Yutaka Seimitsu Kogyo Ltd | Manufacturing method for bevel gear, bevel gear material, and bevel gear |
| US6839953B2 (en) * | 2002-03-27 | 2005-01-11 | Magna Drivetrain Of America, Inc. | Combination gear hobber, chamfer/debur and shaver apparatus and method |
| CN102950434A (en) * | 2012-10-27 | 2013-03-06 | 富莱茵汽车部件有限公司 | Preparing method of gear for fuel delivery pump |
| CN103331585A (en) * | 2013-07-03 | 2013-10-02 | 扬州扬子江宝云缸套有限公司 | Method for manufacturing isothermal quenching spheroidal graphite cast iron large-scale heavy-load gear |
| CN104759859A (en) * | 2015-03-19 | 2015-07-08 | 高灵军 | Gear machining process |
| CN104785728A (en) * | 2015-04-27 | 2015-07-22 | 海安铸鑫金属制品有限公司 | Gear casting processing method |
| CN104999240A (en) * | 2015-07-31 | 2015-10-28 | 江苏曜曜铸业有限公司 | Gear machining and treating process |
| CN105382206A (en) * | 2015-12-11 | 2016-03-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Casting mold and forming method for box body of gearbox |
-
2016
- 2016-05-25 CN CN201610354273.5A patent/CN106002114A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046030A (en) * | 2000-08-04 | 2002-02-12 | Yutaka Seimitsu Kogyo Ltd | Manufacturing method for bevel gear, bevel gear material, and bevel gear |
| US6839953B2 (en) * | 2002-03-27 | 2005-01-11 | Magna Drivetrain Of America, Inc. | Combination gear hobber, chamfer/debur and shaver apparatus and method |
| CN102950434A (en) * | 2012-10-27 | 2013-03-06 | 富莱茵汽车部件有限公司 | Preparing method of gear for fuel delivery pump |
| CN103331585A (en) * | 2013-07-03 | 2013-10-02 | 扬州扬子江宝云缸套有限公司 | Method for manufacturing isothermal quenching spheroidal graphite cast iron large-scale heavy-load gear |
| CN104759859A (en) * | 2015-03-19 | 2015-07-08 | 高灵军 | Gear machining process |
| CN104785728A (en) * | 2015-04-27 | 2015-07-22 | 海安铸鑫金属制品有限公司 | Gear casting processing method |
| CN104999240A (en) * | 2015-07-31 | 2015-10-28 | 江苏曜曜铸业有限公司 | Gear machining and treating process |
| CN105382206A (en) * | 2015-12-11 | 2016-03-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Casting mold and forming method for box body of gearbox |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637613A (en) * | 2018-03-24 | 2018-10-12 | 徐州迈斯特机械科技有限公司 | A kind of method for processing sector gear |
| CN108994665A (en) * | 2018-08-06 | 2018-12-14 | 合肥银泉铸造有限责任公司 | A kind of spiral bevel gear finishing process |
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Application publication date: 20161012 |