CN107538189A - A kind of processing technology of final-stage gear - Google Patents
A kind of processing technology of final-stage gear Download PDFInfo
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- CN107538189A CN107538189A CN201710960028.3A CN201710960028A CN107538189A CN 107538189 A CN107538189 A CN 107538189A CN 201710960028 A CN201710960028 A CN 201710960028A CN 107538189 A CN107538189 A CN 107538189A
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Abstract
The invention discloses a kind of processing technology of final-stage gear, comprise the following steps：Comprise the following steps：Choose the raw material that 20CrMnTi is final-stage gear；Cutting stock is carried out to raw material using cutter；Raw material after cutting are placed 980 DEG C~1050 DEG C are heated in Medium Frequency Induction Heating Furnace, keep 30min~80min；One-step forming at the beginning of by carrying out punching press to the raw material in the step 3 in the pre-profiling mould installed on punch press forcing press；Pre-profiling mould in step 4 is moved into rapidly progress punch forming final-stage gear blank in another punch press forcing press final-stage gear mould；Final-stage gear blank in the step 5 is heat-treated, including normalizing, tempering and quenching, obtain final-stage gear after carrying out surface shot blasting strengthening processing again to final-stage gear.A kind of wear-resisting final-stage gear, service life length can be provided, and procedure of processing can simply be produced in batches.
Description
Technical field
The present invention relates to a kind of processing technology of final-stage gear.
Background technology
Gear is vital part in plant equipment, it is desirable to the existing excellent wearability of gear, possesses high anti-contact again
Fatigue and fatigue property.The quality of gear quality, depend greatly on gear material and its processing mode.It is existing
The processing method of final-stage gear and the design of mould the problem of existing have that accessory size is inaccurate, gear life it is short, it is necessary to compared with
The processing of more dependence lathes, cost are high.
The content of the invention
The deficiency for more than, it is an object of the invention to provide a kind of processing technology of final-stage gear, it is possible to provide Yi Zhongnai
The final-stage gear of mill, service life length, and procedure of processing can simply be produced in batches.
The purpose of the present invention realized by such technical scheme, a kind of processing technology of final-stage gear, including with
Lower step：
Step 1：Choose the raw material that 20CrMnTi is final-stage gear；
Step 2：Cutting stock is carried out to raw material using cutter；
Step 3：Raw material after cutting are placed 980 DEG C~1050 DEG C are heated in Medium Frequency Induction Heating Furnace, kept
30min~80min；
Step 4：By being rushed in the pre-profiling mould installed on punch press forcing press to the raw material in the step 3
The first one-step forming of pressure；
Step 5：Pre-profiling mould in step 4 is moved into rapidly another punch press forcing press final-stage gear mould
Middle progress punch forming final-stage gear blank；
Step 6：Final-stage gear blank in the step 5 is heat-treated, the final-stage gear blank is placed
950 DEG C~1000 DEG C are heated in Medium Frequency Induction Heating Furnace, and natural cooling in placement air is taken out after keeping 3~4h；
Step 7：Placed after being heated to 600 DEG C~650 DEG C insulations to final-stage gear blank again 3~6 hours natural in air
Cooling；
Step 8：Wire cutting processing and forming is carried out to final-stage gear blank material and leaves certain surplus, then to its finish-milling
It is machined to technical requirements size；
Step 9：Quenching technical is carried out again, and the quenching is that the final-stage gear blank is heated into 800 DEG C~820 DEG C
Quenching oil, which is immersed, after insulation 150min~200min is cooled to room temperature；
Step 10：Final-stage gear is obtained after carrying out surface shot blasting strengthening processing again to final-stage gear.
Further, cutter is entered to set the gap periods of Incise the raw material in the step 2, can be achieved to raw material
It is full-automatic to cut material.
Further, also need to observe raw material section in the step 2, judge section it is whether smooth and
Whether section tilts, and the needs for technical requirements of getting along well adjust cutter in time.
Further, the quenching oil includes refined paraffin wax based lubricating oil, urges cryogen, detersive and antioxidant system
Into.
Further, the scope that the final-stage gear blank material wire cutting in the step 8 leaves surplus is 2~5mm.
Further, final-stage gear is placed on ventilating and cooling place in the step 6 and carries out natural cooling.
Further, quenching technical is carried out in the step 9 again, the quenching is to be heated to the final-stage gear blank
Quenching oil, which is immersed, after 810 DEG C of insulation 150min is cooled to room temperature；
Further, the timeliness of bead is 10min in the step 10.
Further, the final-stage gear packaging products in boxes should be packed individually, avoid mutually touching between final-stage gear.
Due to using above-mentioned technical proposal, the present invention has the advantage that：It is raw material by choosing 20CrMnTi, processing
The gear mechanism superior performance gone out, is used for transmission field, first by pre-profiling mould in processing technology, then has shaping mould to obtain
To final-stage gear blank, wire cutting and turnning and milling pair make it that the size of final-stage gear is accurate, and corresponding heat treatment enhances final stage tooth
The mechanical performance of wheel.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can be wanted by following specification and right
Book is sought to realize and obtain.
Embodiment
With reference to embodiment, the invention will be further described.
A kind of embodiment 1, processing technology of final-stage gear, comprises the following steps：
Step 1：Choose the raw material that 20CrMnTi is final-stage gear；It is carburizing steel of good performance, quenching degree is higher,
There is hard and wear-resisting surface and tough and tensile center portion after carburizing and quenching, there is higher low-temperature impact toughness, weldability is medium,
Machinability is good after normalizing.For manufacturing section<30mm's bears the important of high speed, medium or heavy load, impact and friction
Part, as gear, gear ring, gear shaft cross are first-class；
Step 2：Cutting stock is carried out to raw material using cutter；Conventional cutter editable rate of cutting, if
The fixed corresponding cycle may be such that raw material carry out continuing blanking；
Step 3：Raw material after cutting are placed 980 DEG C are heated in Medium Frequency Induction Heating Furnace, keep 30min；
Step 4：By being rushed in the pre-profiling mould installed on punch press forcing press to the raw material in the step 3
The first one-step forming of pressure；Pre-profiling mould reduces shaping mould to the pressure of forming parts, the technique cause the final-stage gear after shaping into
Type face is bright and clean；
Step 5：Pre-profiling mould in step 4 is moved into rapidly another punch press forcing press final-stage gear mould
Middle progress punch forming final-stage gear blank；
Step 6：Final-stage gear blank in the step 5 is heat-treated, the final-stage gear blank is placed
950 DEG C are heated in Medium Frequency Induction Heating Furnace, and natural cooling in placement air is taken out after keeping 3h；
Step 7：Final-stage gear blank is heated to again 600 DEG C insulation 3 hours after place air in natural cooling；
Step 8：Wire cutting processing and forming is carried out to final-stage gear blank material and leaves certain surplus, then to its finish-milling
It is machined to technical requirements size；
Step 9：Quenching technical is carried out again, and the quenching is that the final-stage gear blank is heated into 810 DEG C of insulations
Quenching oil is immersed after 150min and is cooled to room temperature；
Step 10：Final-stage gear is obtained after carrying out surface shot blasting strengthening processing again to final-stage gear.
Cutter is entered to set the gap periods of Incise the raw material in the step 2, can be achieved automatically to cut raw material
Material.The cycle specifically sets according to the length of blanking.
Also need to observe raw material section in the step 2, judge whether section is smooth and section is
No inclination, the needs for technical requirements of getting along well adjust cutter in time.Need that the angle of knife is adjusted when section tilts.
The quenching oil includes refined paraffin wax based lubricating oil, urges cryogen, detersive and antioxidant to be made.This is quenched
Kerosene is fast quenching oil, and cooling performance high-temperature region cooling rate can escape " C curve " tip of the nose soon, obtain desired tissue, low-temperature space
Cooling rate is fast, pays attention to deformation amount controlling to thin, thin pieces, has sharp corner to prevent from ftractureing, and workpiece surface is bright after quenching, anti-oxidant stable
Property is good, and the life-span is longer.
The scope that final-stage gear blank material wire cutting in the step 8 leaves surplus is 2mm.Tackle turnning and milling and part
Heat treatment deformation leave surplus.
Final-stage gear is placed on ventilating and cooling place in the step 6 and carries out natural cooling.
The timeliness of bead is 10min in the step 10.So that final-stage gear surface is subject to processing, exhaustive.
The final-stage gear packaging products in boxes should be packed individually, avoid mutually touching between final-stage gear.
A kind of embodiment 2, processing technology of final-stage gear, comprises the following steps：
Step 1：Choose the raw material that 20CrMnTi is final-stage gear；It is carburizing steel of good performance, quenching degree is higher,
There is hard and wear-resisting surface and tough and tensile center portion after carburizing and quenching, there is higher low-temperature impact toughness, weldability is medium,
Machinability is good after normalizing.For manufacturing section<30mm's bears the important of high speed, medium or heavy load, impact and friction
Part, as gear, gear ring, gear shaft cross are first-class；
Step 2：Cutting stock is carried out to raw material using cutter；Conventional cutter editable rate of cutting, if
The fixed corresponding cycle may be such that raw material carry out continuing blanking；
Step 3：Raw material after cutting are placed 1050 DEG C are heated in Medium Frequency Induction Heating Furnace, keep 30min；
Step 4：By being rushed in the pre-profiling mould installed on punch press forcing press to the raw material in the step 3
The first one-step forming of pressure；Pre-profiling mould reduces shaping mould to the pressure of forming parts, the technique cause the final-stage gear after shaping into
Type face is bright and clean；
Step 5：Pre-profiling mould in step 4 is moved into rapidly another punch press forcing press final-stage gear mould
Middle progress punch forming final-stage gear blank；
Step 6：Final-stage gear blank in the step 5 is heat-treated, the final-stage gear blank is placed
1000 DEG C are heated in Medium Frequency Induction Heating Furnace, and natural cooling in placement air is taken out after keeping 4h；
Step 7：Final-stage gear blank is heated to again 650 DEG C insulation 6 hours after place air in natural cooling；
Step 8：Wire cutting processing and forming is carried out to final-stage gear blank material and leaves certain surplus, then to its finish-milling
It is machined to technical requirements size；
Step 9：Quenching technical is carried out again, and the quenching is that the final-stage gear blank is heated into 810 DEG C of insulations
Quenching oil is immersed after 150min and is cooled to room temperature；
Step 10：Final-stage gear is obtained after carrying out surface shot blasting strengthening processing again to final-stage gear.
Cutter is entered to set the gap periods of Incise the raw material in the step 2, can be achieved automatically to cut raw material
Material.The cycle specifically sets according to the length of blanking.
Also need to observe raw material section in the step 2, judge whether section smooth and section
Whether tilt, the needs for technical requirements of getting along well adjust cutter in time.Need to adjust the angle of knife when section tilts
Section.
The quenching oil includes refined paraffin wax based lubricating oil, urges cryogen, detersive and antioxidant to be made.This is quenched
Kerosene is fast quenching oil, and cooling performance high-temperature region cooling rate can escape " C curve " tip of the nose soon, obtain desired tissue, low-temperature space
Cooling rate is fast, pays attention to deformation amount controlling to thin, thin pieces, has sharp corner to prevent from ftractureing, and workpiece surface is bright after quenching, anti-oxidant stable
Property is good, and the life-span is longer.
The scope that final-stage gear blank material wire cutting in the step 8 leaves surplus is 2mm.Tackle turnning and milling and part
Heat treatment deformation leave surplus.
Final-stage gear is placed on ventilating and cooling place in the step 6 and carries out natural cooling.
The timeliness of bead is 10min in the step 10.So that final-stage gear surface is subject to processing, exhaustive.
The final-stage gear packaging products in boxes should be packed individually, avoid mutually touching between final-stage gear.
Real-time example 3, a kind of processing technology of final-stage gear, comprises the following steps：
Step 1：Choose the raw material that 20CrMnTi is final-stage gear；It is carburizing steel of good performance, quenching degree is higher,
There is hard and wear-resisting surface and tough and tensile center portion after carburizing and quenching, there is higher low-temperature impact toughness, weldability is medium,
Machinability is good after normalizing.For manufacturing section<30mm's bears the important of high speed, medium or heavy load, impact and friction
Part, as gear, gear ring, gear shaft cross are first-class；
Step 2：Cutting stock is carried out to raw material using cutter；Conventional cutter editable rate of cutting, if
The fixed corresponding cycle may be such that raw material carry out continuing blanking；
Step 3：Raw material after cutting are placed 1000 DEG C are heated in Medium Frequency Induction Heating Furnace, keep 80min；
Step 4：By being rushed in the pre-profiling mould installed on punch press forcing press to the raw material in the step 3
The first one-step forming of pressure；Pre-profiling mould reduces shaping mould to the pressure of forming parts, the technique cause the final-stage gear after shaping into
Type face is bright and clean；
Step 5：Pre-profiling mould in step 4 is moved into rapidly another punch press forcing press final-stage gear mould
Middle progress punch forming final-stage gear blank；
Step 6：Final-stage gear blank in the step 5 is heat-treated, the final-stage gear blank is placed
950 DEG C are heated in Medium Frequency Induction Heating Furnace, and natural cooling in placement air is taken out after keeping 3h；
Step 7：Final-stage gear blank is heated to again 630 DEG C insulation 5 hours after place air in natural cooling；
Step 8：Wire cutting processing and forming is carried out to final-stage gear blank material and leaves certain surplus, then to its finish-milling
It is machined to technical requirements size；
Step 9：Quenching technical is carried out again, and the quenching is that the final-stage gear blank is heated into 810 DEG C of insulations
Quenching oil is immersed after 150min and is cooled to room temperature；
Step 10：Final-stage gear is obtained after carrying out surface shot blasting strengthening processing again to final-stage gear.
Cutter is entered to set the gap periods of Incise the raw material in the step 2, can be achieved automatically to cut raw material
Material.The cycle specifically sets according to the length of blanking.
Also need to observe raw material section in the step 2, judge whether section smooth and section
Whether tilt, the needs for technical requirements of getting along well adjust cutter in time.Need to adjust the angle of knife when section tilts
Section.
The quenching oil includes refined paraffin wax based lubricating oil, urges cryogen, detersive and antioxidant to be made.This is quenched
Kerosene is fast quenching oil, and cooling performance high-temperature region cooling rate can escape " C curve " tip of the nose soon, obtain desired tissue, low-temperature space
Cooling rate is fast, pays attention to deformation amount controlling to thin, thin pieces, has sharp corner to prevent from ftractureing, and workpiece surface is bright after quenching, anti-oxidant stable
Property is good, and the life-span is longer.
The scope that final-stage gear blank material wire cutting in the step 8 leaves surplus is 2mm.Tackle turnning and milling and part
Heat treatment deformation leave surplus.
Final-stage gear is placed on ventilating and cooling place in the step 6 and carries out natural cooling.
The timeliness of bead is 10min in the step 10.So that final-stage gear surface is subject to processing, exhaustive.
The final-stage gear packaging products in boxes should be packed individually, avoid mutually touching between final-stage gear.
This example 3 is the processing technology of optimal final-stage gear, and the final-stage gear of good mechanical property, service life is long, resistance to
Mill.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should cover in the present invention
Right among.
Claims (9)
- A kind of 1. processing technology of final-stage gear, it is characterised in that：Comprise the following steps：Step 1：Choose the raw material that 20CrMnTi is final-stage gear；Step 2：Cutting stock is carried out to raw material using cutter；Step 3：Raw material after cutting are placed 980 DEG C~1050 DEG C are heated in Medium Frequency Induction Heating Furnace, keep 30min ~80min；Step 4：At the beginning of carrying out punching press to the raw material in the step 3 in the pre-profiling mould installed on punch press forcing press One-step forming；Step 5：Pre-profiling mould in step 4 is moved to rapidly in another punch press forcing press final-stage gear mould Row punch forming final-stage gear blank；Step 6：Final-stage gear blank in the step 5 is heat-treated, the final-stage gear blank is placed into intermediate frequency 950 DEG C~1000 DEG C are heated in induction heater, and natural cooling in placement air is taken out after keeping 3~4h；Step 7：Final-stage gear blank is heated to again 600 DEG C~650 DEG C insulation 3~6 hours after place air in it is naturally cold But；Step 8：Wire cutting processing and forming is carried out to final-stage gear blank material and leaves certain surplus, then its finish-milling is processed To technical requirements size；Step 9：Quenching technical is carried out again, and the quenching is that the final-stage gear blank is heated into 800 DEG C~820 DEG C insulations Quenching oil is immersed after 150min~200min and is cooled to room temperature；Step 10：Final-stage gear is obtained after carrying out surface shot blasting strengthening processing again to final-stage gear.
- 2. the processing technology of final-stage gear according to claim 1, it is characterised in that：Cutter is entered in the step 2 The gap periods of Incise the raw material are set, can be achieved automatically to cut raw material in material.
- 3. the processing technology of final-stage gear according to claim 1, it is characterised in that：Also needed to pair in the step 2 Raw material section is observed, and judges whether section is smooth and whether section tilts, and the needs for technical requirements of getting along well are timely Adjust cutter.
- 4. the processing technology of final-stage gear according to claim 1, it is characterised in that：The quenching oil includes refined stone Cerul lubricating oil, cryogen, detersive and antioxidant is urged to be made.
- 5. the processing technology of final-stage gear according to claim 1, it is characterised in that：Final-stage gear in the step 8 The scope that blank material wire cutting leaves surplus is 2~5mm.
- 6. the processing technology of final-stage gear according to claim 1, it is characterised in that：By final-stage gear in the step 6 It is placed on ventilating and cooling place and carries out natural cooling.
- 7. the processing technology of final-stage gear according to claim 1, it is characterised in that：Quenched again in the step 9 Technique, the quenching are that immersion quenching oil is cooled to room temperature after the final-stage gear blank is heated into 810 DEG C of insulation 150min.
- 8. the processing technology of final-stage gear according to claim 1, it is characterised in that：Bead in the step 10 Timeliness is 10min.
- 9. the processing technology of final-stage gear according to claim 1, it is characterised in that：The final-stage gear packaging products in boxes should Individually packaging, avoids mutually touching between final-stage gear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710960028.3A CN107538189A (en) | 2017-10-16 | 2017-10-16 | A kind of processing technology of final-stage gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710960028.3A CN107538189A (en) | 2017-10-16 | 2017-10-16 | A kind of processing technology of final-stage gear |
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| CN201710960028.3A Pending CN107538189A (en) | 2017-10-16 | 2017-10-16 | A kind of processing technology of final-stage gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115026511A (en) * | 2022-05-07 | 2022-09-09 | 金川集团股份有限公司 | Method for repairing broken large gear ring and gear teeth of large and medium-sized ball mills |
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| US5516376A (en) * | 1993-05-26 | 1996-05-14 | Nissan Motor Co., Ltd. | Method of, and apparatus for manufacturing a gear with a central through hole |
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| CN106392507A (en) * | 2016-06-03 | 2017-02-15 | 江苏保捷锻压有限公司 | Forging process for reverse driven gear for automobile gearbox |
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2017
- 2017-10-16 CN CN201710960028.3A patent/CN107538189A/en active Pending
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|---|---|---|---|---|
| JPH06114640A (en) * | 1992-10-06 | 1994-04-26 | Osaka Giken Kk | Production line for forged gear |
| US5516376A (en) * | 1993-05-26 | 1996-05-14 | Nissan Motor Co., Ltd. | Method of, and apparatus for manufacturing a gear with a central through hole |
| CN101623823A (en) * | 2009-06-22 | 2010-01-13 | 胡平 | Automatic production line for warm/hot forming complete equipment of energy-saving high-strength sheet steel |
| CN106392507A (en) * | 2016-06-03 | 2017-02-15 | 江苏保捷锻压有限公司 | Forging process for reverse driven gear for automobile gearbox |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115026511A (en) * | 2022-05-07 | 2022-09-09 | 金川集团股份有限公司 | Method for repairing broken large gear ring and gear teeth of large and medium-sized ball mills |
| CN115026511B (en) * | 2022-05-07 | 2023-10-13 | 金川集团股份有限公司 | Method for repairing gear tooth fracture of large gear ring of large and medium ball mill |
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