CN104962702A - Production method of planetary gear shaft - Google Patents
Production method of planetary gear shaft Download PDFInfo
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- CN104962702A CN104962702A CN201510260149.8A CN201510260149A CN104962702A CN 104962702 A CN104962702 A CN 104962702A CN 201510260149 A CN201510260149 A CN 201510260149A CN 104962702 A CN104962702 A CN 104962702A
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Abstract
The invention discloses a production method of a planetary gear shaft. The production method comprises following steps: a, blanking is carried out, wherein one piece of round steel is prepared; b, the round steel is subjected to quenching and tempering treatment, wherein hardness is controlled to be HRC 25-32; c, processing of one end excircle and end surface is carried out, and processing of the other end excircle and end surface is carried out, wherein excircle grinding remainder is controlled to be 0.4-0.5mm; d, a part obtained via excircle processing is delivered onto a turning lathe, processing of oil grooves is carried out after debugging; e, a milling fixture body is arranged on a milling machine table, and milling of planetary gear shaft step surfaces is carried out; f, a drill jig used for drilling lockpin holes is arranged on a vertical driller so as to obtain lockpin holes via drilling; g, the part processed via drilling is subjected to carburizing treatment, wherein carburized layer depth is controlled to be 1 to 2mm, and quenching hardness is controlled to be HRC 58-62; and h, the part obtained via carburizing treatment is subjected to external grinding using an external grinding fixture body. According to the production method, quality is ensured via carburizing and quenching; product qualified rate is high; and surface hardness and wear resistance are improved effectively.
Description
Technical field
The present invention relates to field of machining auto parts production technique, especially a kind of planet pin production technique.
Background technology
Automobile satellite gear axle is arranged in differential casing, connect two relative sun and planet gear, planet pin operationally bears larger repeated load effect, usually uses steel alloy manufacture, owing to there is relative motion relation between axle surface and bore, in addition, axle surface arranges plane oil groove or spiral oil groove, when making axle and gear relative movement, can lubricate well, traditional method lacks carburizing and quenching process, the product subsurface hardness therefore produced and wear resistance poor.
Summary of the invention
The object of this invention is to provide a kind of planet pin production technique; It is by carburizing and quenching process, requirement of ensuring the quality of products, and with short production cycle, easy to operate, production cost is low, and conforming product rate is high, effectively improves surface hardness and wear resistance.
Technical scheme of the present invention is: a kind of planet pin production technique, and it comprises following technical process:
The round steel of a, a preparation 6m is put on sawing machine or cutting machine loading and unloading, and cut into 300 ~ 500mm long, expediently lathe is processed.
B, to be put in box-type furnace by lower good round steel material and carry out modifier treatment, concrete grammar is that then between 500 ~ 650 DEG C, carry out tempering, make it to have good comprehensive mechanical performance, after modifier treatment, hardness is HRC25 ~ 32 first by 800 DEG C of quenchings.
C, the round material of modifier treatment is arranged on lathe, after fixed installation is good, first use thick cutter roughing one end cylindrical and end face, then smart cutter precision work cylindrical and end face, turn around roughing the other end cylindrical and end face again, last precision work cylindrical and end face, adding man-hour roughness is 3.2, and cylindrical stays mill amount 0.4 ~ 0.5mm.
D, be put on another chassis bed again by part good for Excircle machining, after the clamping of location, the good lathe tool of installation and debugging, starts processing oil groove after debugging is good.
E, be arranged on on milling machine table top by the Milling Machining clamp body made, location is fixing, installs, loads onto disc type milling cutter, adjust finish size height with T-shaped bolt, starts Milling Machining planet pin step surface, and adding man-hour roughness is 6.3.
F, being installed on vertical drilling machine by boring the drill jig of lockpin hole, fixing with bolt presses, installing drill bit, adjusting the suitable height of drill bit, starting drilling processing lockpin hole.
G, the part bored put in cementing furnace and carries out carburizing treatment, concrete grammar is inserted by workpiece to have in activated carburizing medium, be heated to the single phase austenite district of 900 ~ 950 DEG C, after insulation enough time, the active atoms of carbon decomposited in carburizing medium is made to infiltrate steel part top layer, thus obtaining top layer high-carbon, heart portion still keeps original composition; It can make the workpiece surface of infiltrate carbon obtain very high hardness, improves its rub proofness; Case depth 1 ~ 1.2mm, quenching hardness is HRC58 ~ 62.
H, part carburizing treatment crossed are put on external grinding gripping device body, are then installed on cylindrical grinder, and after clamping, grinding cylindrical, during grinding, roughness is 0.8.
Preferably, the round steel preparing a 6m is put on sawing machine or cutting machine loading and unloading, and cut into 400mm long, during cutting, heat-eliminating medium is water.
Preferably, being put in box-type furnace by lower good round steel material and carry out modifier treatment, is exactly that then carry out tempering at 550 DEG C, make it to have good comprehensive mechanical performance, after modifier treatment, hardness is HRC28 first by 800 DEG C of quenchings.
Preferably, the round material of modifier treatment is arranged on lathe, after fixed installation is good, first use thick cutter roughing one end cylindrical and end face, then smart cutter precision work cylindrical and end face, then turn around roughing the other end cylindrical and end face, last precision work cylindrical and end face, cylindrical stays mill amount 0.45mm.
Preferably, put in cementing furnace by the part bored, be heated to the single phase austenite district of 920 DEG C, after insulation enough time, make the active atoms of carbon decomposited in carburizing medium infiltrate steel part top layer, thus obtain top layer high-carbon, heart portion still keeps original composition; Workpiece surface is made to obtain very high hardness; Case depth 1.1mm, quenching hardness is HRC60.
The invention has the beneficial effects as follows: adopt above-mentioned explained hereafter, can ensure the quality of products, with short production cycle, easy to operate, production cost is low, and conforming product rate is high, has application value in industry.
Embodiment
embodiment 1:
A kind of planet pin production technique provided by the invention, technical process is as follows:
The round steel of a, a preparation 6m is put on sawing machine or cutting machine loading and unloading, and cut into 300mm long, expediently lathe is processed.
B, to be put in box-type furnace by lower good round steel material and carry out modifier treatment, concrete grammar is that then between 500 DEG C, carry out tempering, make it to have good comprehensive mechanical performance, after modifier treatment, hardness is HRC25 first by 800 DEG C of quenchings.
C, the round material of modifier treatment is arranged on lathe, after fixed installation is good, first use thick cutter roughing one end cylindrical and end face, then smart cutter precision work cylindrical and end face, turn around roughing the other end cylindrical and end face again, last precision work cylindrical and end face, adding man-hour roughness is 3.2, and cylindrical stays mill amount 0.4mm.
D, be put on another chassis bed again by part good for Excircle machining, after the clamping of location, the good lathe tool of installation and debugging, starts processing oil groove after debugging is good.
E, be arranged on on milling machine table top by the Milling Machining clamp body made, location is fixing, installs, loads onto disc type milling cutter, adjust finish size height with T-shaped bolt, starts Milling Machining planet pin step surface, and adding man-hour roughness is 6.3.
F, being installed on vertical drilling machine by boring the drill jig of lockpin hole, fixing with bolt presses, installing drill bit, adjusting the suitable height of drill bit, starting drilling processing lockpin hole.
G, the part bored put in cementing furnace and carries out carburizing treatment, concrete grammar is inserted by workpiece to have in activated carburizing medium, be heated to the single phase austenite district of 900 DEG C, after insulation enough time, the active atoms of carbon decomposited in carburizing medium is made to infiltrate steel part top layer, thus obtaining top layer high-carbon, heart portion still keeps original composition; It can make the workpiece surface of infiltrate carbon obtain very high hardness, improves its rub proofness; Case depth 1mm, quenching hardness is HRC58.
H, part carburizing treatment crossed are put on external grinding gripping device body, are then installed on cylindrical grinder, and after clamping, grinding cylindrical, during grinding, roughness is 0.8.
embodiment 2:
A kind of planet pin production technique provided by the invention, technical process is as follows:
The round steel of a, a preparation 6m is put on sawing machine or cutting machine loading and unloading, and cut into 400mm long, expediently lathe is processed.
B, to be put in box-type furnace by lower good round steel material and carry out modifier treatment, concrete grammar is that then between 550 DEG C, carry out tempering, make it to have good comprehensive mechanical performance, after modifier treatment, hardness is HRC28 first by 800 DEG C of quenchings.
C, the round material of modifier treatment is arranged on lathe, after fixed installation is good, first use thick cutter roughing one end cylindrical and end face, then smart cutter precision work cylindrical and end face, turn around roughing the other end cylindrical and end face again, last precision work cylindrical and end face, adding man-hour roughness is 3.2, and cylindrical stays mill amount 0.45mm.
D, be put on another chassis bed again by part good for Excircle machining, after the clamping of location, the good lathe tool of installation and debugging, starts processing oil groove after debugging is good.
E, be arranged on on milling machine table top by the Milling Machining clamp body made, location is fixing, installs, loads onto disc type milling cutter, adjust finish size height with T-shaped bolt, starts Milling Machining planet pin step surface, and adding man-hour roughness is 6.3.
F, being installed on vertical drilling machine by boring the drill jig of lockpin hole, fixing with bolt presses, installing drill bit, adjusting the suitable height of drill bit, starting drilling processing lockpin hole.
G, the part bored put in cementing furnace and carries out carburizing treatment, concrete grammar is inserted by workpiece to have in activated carburizing medium, be heated to the single phase austenite district of 920 DEG C, after insulation enough time, the active atoms of carbon decomposited in carburizing medium is made to infiltrate steel part top layer, thus obtaining top layer high-carbon, heart portion still keeps original composition; It can make the workpiece surface of infiltrate carbon obtain very high hardness, improves its rub proofness; Case depth 1.1mm, quenching hardness is HRC60.
H, part carburizing treatment crossed are put on external grinding gripping device body, are then installed on cylindrical grinder, and after clamping, grinding cylindrical, during grinding, roughness is 0.8.
embodiment 3:
A kind of planet pin production technique provided by the invention, technical process is as follows:
The round steel of a, a preparation 6m is put on sawing machine or cutting machine loading and unloading, and cut into 500mm long, expediently lathe is processed.
B, to be put in box-type furnace by lower good round steel material and carry out modifier treatment, concrete grammar is that then between 650 DEG C, carry out tempering, make it to have good comprehensive mechanical performance, after modifier treatment, hardness is HRC32 first by 800 DEG C of quenchings.
C, the round material of modifier treatment is arranged on lathe, after fixed installation is good, first use thick cutter roughing one end cylindrical and end face, then smart cutter precision work cylindrical and end face, turn around roughing the other end cylindrical and end face again, last precision work cylindrical and end face, adding man-hour roughness is 3.2, and cylindrical stays mill amount 0.5mm.
D, be put on another chassis bed again by part good for Excircle machining, after the clamping of location, the good lathe tool of installation and debugging, starts processing oil groove after debugging is good.
E, be arranged on on milling machine table top by the Milling Machining clamp body made, location is fixing, installs, loads onto disc type milling cutter, adjust finish size height with T-shaped bolt, starts Milling Machining planet pin step surface, and adding man-hour roughness is 6.3.
F, being installed on vertical drilling machine by boring the drill jig of lockpin hole, fixing with bolt presses, installing drill bit, adjusting the suitable height of drill bit, starting drilling processing lockpin hole.
G, the part bored put in cementing furnace and carries out carburizing treatment, concrete grammar is inserted by workpiece to have in activated carburizing medium, be heated to the single phase austenite district of 950 DEG C, after insulation enough time, the active atoms of carbon decomposited in carburizing medium is made to infiltrate steel part top layer, thus obtaining top layer high-carbon, heart portion still keeps original composition; It can make the workpiece surface of infiltrate carbon obtain very high hardness, improves its rub proofness; Case depth 1.2mm, quenching hardness is HRC60.
H, part carburizing treatment crossed are put on external grinding gripping device body, are then installed on cylindrical grinder, and after clamping, grinding cylindrical, during grinding, roughness is 0.8.
A kind of planet pin production technique provided by the invention; to those skilled in the art, multiple technical scheme can be derived according to its design, complete identical object; but every all technical schemes under this design are all within the protection domain of the claims in the present invention.
Claims (8)
1. a planet pin production technique, is characterized in that: the round steel preparing a 6m is put on sawing machine or cutting machine loading and unloading, and cut into 300 ~ 500mm long, expediently lathe is processed.
2. a kind of planet pin production technique according to claim 1, it is characterized in that: lower good round steel material is put in box-type furnace and carries out modifier treatment, concrete grammar is first by 800 DEG C of quenchings, then between 500 ~ 650 DEG C, tempering is carried out, make it to have good comprehensive mechanical performance, after modifier treatment, hardness is HRC25 ~ 32.
3. a kind of planet pin production technique according to claim 1, it is characterized in that: the round material of modifier treatment is arranged on lathe, after fixed installation is good, first use thick cutter roughing one end cylindrical and end face, then smart cutter precision work cylindrical and end face, then turn around roughing the other end cylindrical and end face, last precision work cylindrical and end face, adding man-hour roughness is 3.2, and cylindrical stays mill amount 0.4 ~ 0.5mm.
4. a kind of planet pin production technique according to claim 1, is characterized in that: be put into by part good for Excircle machining on another chassis bed again, and after the clamping of location, the good lathe tool of installation and debugging, starts processing oil groove after debugging is good.
5. a kind of planet pin production technique according to claim 1, it is characterized in that: the Milling Machining clamp body made is arranged on on milling machine table top, location is fixing, install with T-shaped bolt, load onto disc type milling cutter, adjust finish size height, start Milling Machining planet pin step surface, adding man-hour roughness is 6.3.
6. a kind of planet pin production technique according to claim 1, is characterized in that: be installed on vertical drilling machine by the drill jig boring lockpin hole, fix, install drill bit, adjust the suitable height of drill bit with bolt presses, starts drilling processing lockpin hole.
7. a kind of planet pin production technique according to claim 1, it is characterized in that: the part bored is put in cementing furnace and carries out carburizing treatment, concrete grammar is inserted by workpiece to have in activated carburizing medium, be heated to the single phase austenite district of 900 ~ 950 DEG C, after insulation enough time, make the active atoms of carbon decomposited in carburizing medium infiltrate steel part top layer, thus obtain top layer high-carbon, heart portion still keeps original composition; Case depth 1 ~ 1.2mm, quenching hardness is HRC58 ~ 62.
8. a kind of planet pin production technique according to claim 1, is characterized in that: part carburizing treatment crossed is put on external grinding gripping device body, is then installed on cylindrical grinder, and after clamping, grinding cylindrical, during grinding, roughness is 0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510260149.8A CN104962702A (en) | 2015-05-21 | 2015-05-21 | Production method of planetary gear shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510260149.8A CN104962702A (en) | 2015-05-21 | 2015-05-21 | Production method of planetary gear shaft |
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| CN104962702A true CN104962702A (en) | 2015-10-07 |
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| CN201510260149.8A Pending CN104962702A (en) | 2015-05-21 | 2015-05-21 | Production method of planetary gear shaft |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880954A (en) * | 2016-06-12 | 2016-08-24 | 马鞍山市三川机械制造有限公司 | Production technology of gear shaft of automotive speed reducer |
| CN106425341A (en) * | 2016-07-20 | 2017-02-22 | 昆山华都精工机械设备有限公司 | Boring shaft manufacturing method |
| CN107081486A (en) * | 2017-05-05 | 2017-08-22 | 中煤张家口煤矿机械有限责任公司 | A kind of high-efficiency machining method of short tooth wheel shaft |
| CN107398690A (en) * | 2017-09-22 | 2017-11-28 | 安徽东皖车桥科技有限公司 | A kind of manufacture craft of car deceleration device gear |
| CN110216430A (en) * | 2019-04-30 | 2019-09-10 | 兴化市统一齿轮有限公司 | A kind of processing method of hollow gear shaft |
| CN111906506A (en) * | 2020-06-15 | 2020-11-10 | 江阴市凯华机械制造有限公司 | Production process of high-precision low-noise gear for textile machinery |
| CN112359175A (en) * | 2020-11-09 | 2021-02-12 | 盐城市明佳机械有限公司 | Precision forging forming process of 60 HRC-level transmission gear |
-
2015
- 2015-05-21 CN CN201510260149.8A patent/CN104962702A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880954A (en) * | 2016-06-12 | 2016-08-24 | 马鞍山市三川机械制造有限公司 | Production technology of gear shaft of automotive speed reducer |
| CN106425341A (en) * | 2016-07-20 | 2017-02-22 | 昆山华都精工机械设备有限公司 | Boring shaft manufacturing method |
| CN107081486A (en) * | 2017-05-05 | 2017-08-22 | 中煤张家口煤矿机械有限责任公司 | A kind of high-efficiency machining method of short tooth wheel shaft |
| CN107398690A (en) * | 2017-09-22 | 2017-11-28 | 安徽东皖车桥科技有限公司 | A kind of manufacture craft of car deceleration device gear |
| CN110216430A (en) * | 2019-04-30 | 2019-09-10 | 兴化市统一齿轮有限公司 | A kind of processing method of hollow gear shaft |
| CN111906506A (en) * | 2020-06-15 | 2020-11-10 | 江阴市凯华机械制造有限公司 | Production process of high-precision low-noise gear for textile machinery |
| CN112359175A (en) * | 2020-11-09 | 2021-02-12 | 盐城市明佳机械有限公司 | Precision forging forming process of 60 HRC-level transmission gear |
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Application publication date: 20151007 |