CN105537689B - Gear grinding removes the restorative procedure of crackle - Google Patents
Gear grinding removes the restorative procedure of crackle Download PDFInfo
- Publication number
- CN105537689B CN105537689B CN201610081909.3A CN201610081909A CN105537689B CN 105537689 B CN105537689 B CN 105537689B CN 201610081909 A CN201610081909 A CN 201610081909A CN 105537689 B CN105537689 B CN 105537689B
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- Prior art keywords
- crackle
- gear
- tooth
- overproof
- flank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Gear grinding removes the restorative procedure of crackle, is related to a kind of gear grinding method.The method for removing crackle the present invention is to solve existing grinding easily causes overproof, crack advance, causes the problem of gear is scrapped.Method：First, cracks are coloured, identifies crack position and crack orientation, first polished with coarse sandpaper by cracks feather plucking, then with the oilstone of circular arc along direction of check, note ensureing that size is overproof not in bruting process；2nd, after crackle is eliminated, the flank of tooth defective to gear carries out one side mill, until defect expressivity, then recalculates the flank of tooth surplus of gear two.This method can be with just right elimination crackle, the mode being ground using one side, once side is overproof, can be mutually balanced by opposite side, it can prevent double-side grinding from easily causing overproof, it is ensured that the further progress of machining, it is ensured that product quality.The present invention is used for the reparation of gear crack.
Description
Technical field
The present invention relates to a kind of gear grinding method.
Background technology
Gear, because itself material, grinding stress, grinding produce many reasons such as heat, can cause in grinding process
Gear teeth face is cracked.
Traditional restorative procedure is to continue with grinding, untill crackle is removed.So often having gear until being ground to super
Difference, crackle is not also ground off.Reason is in the grinding process for removing crackle, to cause crack advance, it is impossible to repair, cause gear report
It is useless.
The content of the invention
The method for removing crackle the present invention is to solve existing grinding easily causes overproof, crack advance, causes gear report
Useless the problem of, there is provided the restorative procedure that a kind of gear grinding removes crackle.
Gear grinding of the present invention removes the restorative procedure of crackle, carries out according to the following steps：
First, cracks are coloured, identifies crack position and crack orientation, first with coarse sandpaper by cracks feather plucking, then use
The oilstone of circular arc is gently polished along direction of check, is noticed that removal amount and removal scope are as far as possible small, is often removed 0.03mm-0.05mm
When, carry out a dye penetrant inspection, confirm crackle whether eliminated, such as do not eliminate, then repeatedly oilstone polishing step, notes guarantee
Size will not be just overproof in bruting process.
2nd, after crackle is eliminated, the flank of tooth defective to gear carries out one side mill, until defect expressivity, i.e. defect elimination, Ran Houchong
It is new to calculate the flank of tooth surplus of gear two；If still there is allowance defective side, opposite side first do not had into defective tooth
Face is milled to surplus identical with a lateral tooth flank of defect elimination, then carries out following process (situation as shown in Figure 4)；If
The side of defect is without surplus or overproof, then uniform flank of tooth both sides surplus again, is ground (feelings as shown in Figure 5 again
Condition).
The machined parameters of defect elimination are in step 2：Per stroke one side upper slitter amount 0.005mm, stroke≤6, stroke speed
3500mm/min, grinding wheel speed 30m/s, the every 10 tooth finishing of crushing is once.
Through testing repeatedly, oilstone is smaller compared with single removal amounts such as other rotary files, Buddha's warrior attendant file, scrapers.
If crackle is too deep in itself, will be necessarily overproof in order to remove crackle, had a surplus if alreading exceed bidentate face
Amount, this part can only be scrapped, and move the other type products of work processing and use.
After step 2 middle gear defect elimination, if defective side is without surplus or overproof, the uniform flank of tooth again
Both sides surplus, by adjusting the angle of emery wheel, is ground again, makes the uniform surplus in gear both sides.
Beneficial effects of the present invention：
The mode that the inventive method is ground using one side after pincers worker reconditioning carries out the Crack handling that disappears to the gear cracked,
Science, rationally.Overcome grinding removal crackle in the prior art and easily cause overproof, crack advance phenomenon.
This method can be with just right elimination crackle, and the mode being ground using one side, once side is overproof, can pass through
Opposite side is mutually balanced, can prevent double-side grinding from easily causing overproof, it is ensured that the further progress of machining, it is ensured that product matter
Amount.
Brief description of the drawings
Fig. 1 is the middle gear crack-detecting photo of embodiment 1；
Fig. 2 is scratched for crackle in embodiment 1 and is removed rear photo；
Fig. 3 is photo after embodiment 1 is ground；
Fig. 4 still has the situation schematic diagram of allowance for defective side after gear defect elimination；Wherein 1 represents defect, 2
Represent the present surplus of gear product；3 represent the final size of gear product；
Fig. 5 is defective side after gear defect elimination without surplus or overproof situation schematic diagram；Wherein 4 represent tooth
The amount that the grinding of product one side is removed is taken turns, is ground to and is completely removed defect herein, 1 represents defect, 2 represent that gear products are present
Surplus；3 represent the final size of gear product；5 represent after emery wheel is rotated to an angle after double-side grinding, the final chi of product
It is very little.
Embodiment
Technical solution of the present invention is not limited to act embodiment set forth below, in addition between each embodiment
Any combination.
Embodiment one：Present embodiment gear grinding removes the restorative procedure of crackle, carries out according to the following steps：
First, cracks are coloured, identifies crack position and crack orientation, first with coarse sandpaper by cracks feather plucking, then use
The oilstone of circular arc is polished along direction of check, when often removing 0.03mm-0.05mm, carries out a dye penetrant inspection, confirms that crackle is
It is no to have eliminated, such as do not eliminate, then repeatedly oilstone polishing step, notes guarantee size it is overproof not in bruting process；
2nd, after crackle is eliminated, the flank of tooth defective to gear carries out one side mill, until defect expressivity, i.e. defect elimination, Ran Houchong
It is new to calculate the flank of tooth surplus of gear two；If still there is allowance defective side, opposite side first do not had into defective tooth
Face is milled to surplus identical with a lateral tooth flank of defect elimination, then carries out following process；If defective side has not had
There is surplus or overproof, then uniform flank of tooth both sides surplus again, be ground again.
Embodiment two：Present embodiment from unlike embodiment one：The type of step one medium coarse sand paper
Number be 80#.It is other identical with embodiment one.
Embodiment three：Present embodiment from unlike embodiment one or two：Often removed in step one
During 0.04mm, a dye penetrant inspection is carried out.It is other identical with embodiment one or two.
Embodiment four：Unlike one of present embodiment and embodiment one to three：Disappear in step 2
Scarce machined parameters are：Per stroke one side upper slitter amount 0.005mm, stroke≤6, stroke speed 3500mm/min, grinding wheel speed
30m/s, the every 10 tooth finishing of crushing is once.It is other identical with one of embodiment one to three.
For checking beneficial effects of the present invention, tests below is carried out：
Embodiment 1：
The present embodiment gear grinding removes the restorative procedure of crackle, carries out according to the following steps：
First, it is the gear that crack depth is 0.12mm to repair object, and respectively there is 0.10mm surplus in each face of gear, to gear
Cracks colour, identify crack position and crack orientation, first with coarse sandpaper (model 80#) by cracks feather plucking, then with justify
The oilstone of arc is gently polished along direction of check, is noticed that removal amount and removal scope are as far as possible small, when often removing 0.04mm, is carried out one
Secondary dye penetrant inspection, confirm crackle whether eliminated, such as do not eliminate, then repeatedly oilstone polishing step, notes guarantee size will not
It is just overproof in bruting process.
2nd, after crackle is eliminated, the flank of tooth defective to gear carries out one side mill, until defect expressivity, i.e. defect elimination, now have
The face of defect overproof 0.02mm, another side surplus is still 0.1mm, and the total allowance on two sides is 0.08mm, is then recalculated
The flank of tooth surplus of gear two, by adjusting the angle of emery wheel, is ground again, makes the uniform surplus in gear both sides, is per side surplus
0.04mm, that is, complete the reparation that gear grinding removes crackle.
The machined parameters of defect elimination are in step 2：Per stroke one side upper slitter amount 0.005mm, stroke is 6, stroke speed
3500mm/min, grinding wheel speed 30m/s, the every 10 tooth finishing of crushing is once.
The present embodiment gear repair preceding crack-detecting photo as shown in figure 1, crackle scratch remove rear photo as shown in Fig. 2 by
Photo is as shown in Figure 3 after this method grinding.
This method can be with just right elimination crackle, and the mode being ground using one side, once side is overproof, can pass through
Opposite side is mutually balanced, can prevent double-side grinding from easily causing overproof, it is ensured that the further progress of machining, it is ensured that product matter
Amount.
Claims (4)
1. gear grinding removes the restorative procedure of crackle, it is characterised in that this method is carried out according to the following steps：
First, cracks are coloured, identifies crack position and crack orientation, first with coarse sandpaper by cracks feather plucking, then use circular arc
The oilstone of shape is polished along direction of check, when often removing 0.03mm-0.05mm, carries out a dye penetrant inspection, whether to confirm crackle
Through eliminate, such as do not eliminate, then repeatedly oilstone polishing step, notes guarantee size it is overproof not in bruting process；
2nd, after crackle is eliminated, the flank of tooth defective to gear carries out one side mill, until defect expressivity, i.e. defect elimination, are then counted again
Calculate the flank of tooth surplus of gear two；If still there is allowance defective side, first do not have the defective flank of tooth to grind opposite side
To surplus identical with a lateral tooth flank of defect elimination, then carry out following process；If defective side is without remaining
Amount is overproof, then uniform flank of tooth both sides surplus again, is ground again.
2. gear grinding according to claim 1 removes the restorative procedure of crackle, it is characterised in that step one medium coarse sand paper
Model 80#.
3. gear grinding according to claim 1 removes the restorative procedure of crackle, it is characterised in that often removed in step one
During 0.04mm, a dye penetrant inspection is carried out.
4. gear grinding according to claim 1 removes the restorative procedure of crackle, it is characterised in that defect elimination in step 2
Machined parameters are：Per stroke one side upper slitter amount 0.005mm, stroke≤6, stroke speed 3500mm/min, grinding wheel speed 30m/s,
The every 10 tooth finishing of crushing is once.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610081909.3A CN105537689B (en) | 2016-02-04 | 2016-02-04 | Gear grinding removes the restorative procedure of crackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610081909.3A CN105537689B (en) | 2016-02-04 | 2016-02-04 | Gear grinding removes the restorative procedure of crackle |
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| CN105537689A CN105537689A (en) | 2016-05-04 |
| CN105537689B true CN105537689B (en) | 2017-09-19 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110153807B (en) * | 2019-03-29 | 2021-06-08 | 武汉船用机械有限责任公司 | Repair welding repair method for taper hole |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04146022A (en) * | 1990-10-05 | 1992-05-20 | Mitsubishi Heavy Ind Ltd | Chamfering of gear |
| JP4604102B2 (en) * | 2008-03-28 | 2010-12-22 | アイシン・エーアイ株式会社 | Manufacturing method of helical gear |
| JP2010142883A (en) * | 2008-12-16 | 2010-07-01 | Kanzaki Kokyukoki Mfg Co Ltd | Dressing gear and method for dressing geared grinding stone |
| CN102463396A (en) * | 2010-11-15 | 2012-05-23 | 江苏高齿传动机械有限公司 | Improved method for grinding cracks of forming gear grinding machine |
| CN103075490B (en) * | 2011-10-25 | 2015-09-09 | 湖北开明高新科技有限公司 | A kind of hardened face gear and hardened face gear renovation technique |
| DE102013003795A1 (en) * | 2013-03-05 | 2014-09-11 | Liebherr-Verzahntechnik Gmbh | Machining process for hard finishing of noise optimized gears on a gear cutting machine |
| CN105215476B (en) * | 2015-10-24 | 2018-02-13 | 车晋绥 | The restorative procedure that travelling gear root is cut |
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