CN106425340A - Non-traditional machining method of RV cycloid gear - Google Patents
Non-traditional machining method of RV cycloid gear Download PDFInfo
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- CN106425340A CN106425340A CN201610566718.6A CN201610566718A CN106425340A CN 106425340 A CN106425340 A CN 106425340A CN 201610566718 A CN201610566718 A CN 201610566718A CN 106425340 A CN106425340 A CN 106425340A
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- Prior art keywords
- cycloid
- cycloid gear
- gear
- blank
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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)
- Gears, Cams (AREA)
Abstract
The invention discloses a non-traditional machining method of a RV cycloid gear. The method comprises following steps: metal round blank material is selected as raw material and is subjected to normalizing and low-speed wire cutting and slicing; a via hole of the workpiece is processed using a cycloid as the reference; the workpiece is subjected to stress relief annealing and quenching; then the workpiece is subjected to drawing temper, finishing and abrasive flow polishing. According to the method of the invention, low-speed wire cutting is adopted to process gear cycloid and abrasive flow is adopted to polish cycloid gears; after processing, the surface roughness of the cycloid gears is low and the dimensional accuracy is high. Compared to the traditional rough turning-fine turning-gear hobbing-gear shaving-gear grinding process, the production efficiency is significantly improved, and the high cost of high accuracy machine tools required in rough turning-fine turning-gear hobbing-gear shaving-gear grinding process; the method has good production prospect.
Description
Technical field
The present invention relates to Gear Processing field, particularly relate to a kind of non-traditional processing method of RV cycloid gear.
Background technology
Development Robot industry, for promotion conventional industries transition and upgrade, it is achieved innovation drives development, of far-reaching significance.With
Robot industry and be put into the key strategy of " made in China 2025 ", Ministry of Industry and Information take the lead formulate《Robot industry " 13
Five " development plan (exposure draft)》Tentatively drafting, China's Robot industry has welcome great strategic development opportunity.Number
According to display, past 5 years, China robot market with average annual 36% speed increment, last year Chinese market industrial robot pin
Amount surges 54%, reaches 5.6 ten thousand, becomes the maximum industrial robot demand state in the whole world.
The research and development of industrial robot, manufacture are to weigh a national science and technology innovation and high-end manufacture strength and level with application
Important symbol, and precision speed reduction device is the functional part of most critical in industrial robot, is that Robot industry chain is most important
Application link, be also one of bottleneck restricting the development of China Robot industry at present.
Its cost accounts for the 30%～40% of whole robot building cost, and the precision speed reduction device of high cost restricts further
Machine man-based development.Cycloid gear is RV decelerator vital part, the transmission essence of its processing precision direct influence RV decelerator
Degree.And cycloid gear is processed by corporate boss's high-precision grinder to be used at present, its processing cost is high, and efficiency is low, increases greatly
Add the manufacturing cost of decelerator.
Content of the invention
It is an object of the invention to overcome the shortcoming and defect of above-mentioned prior art, a kind of low cost, high-precision is provided
The non-traditional processing method of RV cycloid gear.
The present invention is achieved through the following technical solutions：
A kind of non-traditional processing method of RV cycloid gear, comprises the steps：
Step one：Select round metal blank as blank material；
Step 2：It by blank material normalized treatment described in step one, is i.e. heated to 900 DEG C～920 DEG C to it, be incubated 1 hour
After, then after being as cold as 580 DEG C～600 DEG C soon and being incubated 1 hour, take out from stove and naturally cool to room temperature；
Step 3：Blank material after carrying out normalized treatment to step 2 carries out center hole 1 and processes, more fixed with center hole
Position, carries out slow wire feeding to blank material and cuts cycloid 3, obtain cycloid gear blank；
Step 4：The cycloid gear blank obtaining step 3 carries out stress relief annealing process, temperature 580 DEG C～600 DEG C,
After temperature retention time 7 hours, then after being cooled to 180 DEG C～200 DEG C with stove, come out of the stove；
Step 5:The cycloid gear blank coming out of the stove step 4, on the basis of cycloid, enters to its via hole 4 and dead eye 2
Row processing, obtains cycloid gear workpiece；
Step 6：Quenching；The cycloid gear workpiece obtaining step 5 lies on bin, in 900 DEG C～920 DEG C process
After 1.5～2 hours, then dropping to 840 DEG C of quenchings of coming out of the stove, quenching oil temperature is 90 DEG C, and the cycloid gear surface of the work after quenching is hard
Degree reaches HRC55；
Step 7：Tempering；Cycloid gear workpiece after processing step 6 is tempered 80 minutes at 580 DEG C～600 DEG C, to disappear
De-stress.
Cycloid gear workpiece after processing step 7 carries out finished machined.
Cycloid gear workpiece after processing finished machined, is processed by shot blasting, during polishing in abrasive flow machining device
Between be 10～30 seconds, obtain RV cycloid gear.
Blank material described in step one is any one in 20CrNiMo or GCr15.
Cycloid gear blank described in step 3 is cut into slices, i.e. be cut to the cycloid gear blank of more than one piece desired thickness.
Described in step 5, via hole 4 is circular hole and/or irregularly-shaped hole.
The present invention is relative to existing cycloid gear processing technology, and advantage shows：Slow wire feeding is used to enter cycloid gear
Row processing, precision reaches 0.001mm level, and surface quality, also close to grinding level, is only second to finishing polish surface.And greatly reduce
The cost to high accuracy process equipment for the traditional handicraft (rough turn-finish turning-gear hobbing-shaving-roll flute), productivity ratio is high, reduces cycloid
The production cost of gear, is particularly suitable for the big part of production lot.Abrasive Flow Machining is used to be polished cycloid gear
Processing, Abrasive Flow Machining is particularly suitable for the skin processing of the precision components such as cycloid gear and abnormal curved surface, relative to use
High-precision grinder carries out roll flute processing to cycloid gear, can significantly reduce its processing cost and improve its working (machining) efficiency.This
The problems such as bright can to efficiently solve cycloid gear prior art production technology more complicated, relatively costly, inefficient, are a kind of
Cycloid gear processing method practical, effective.
Brief description
Fig. 1 is the non-traditional processing method process flow diagram of RV cycloid gear of the present invention.
Fig. 2 is slow wire feeding of the present invention cutting cycloid and slicing processes schematic diagram.
Fig. 3 is the cycloid gear structural representation after the present invention machines；In figure, center hole 1；Dead eye 2；Cycloid
3；Via hole 4.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figures 1 to 3.The invention discloses a kind of non-traditional processing method of RV cycloid gear, comprise the steps：
Step one：Select round metal blank as blank material；
Step 2：It by blank material normalized treatment described in step one, is i.e. heated to 900 DEG C～920 DEG C to it, be incubated 1 hour
After, then after being as cold as 580 DEG C～600 DEG C soon and being incubated 1 hour, take out from stove and naturally cool to room temperature；
Step 3：Blank material after carrying out normalized treatment to step 2 carries out center hole 1 and processes, more fixed with center hole
Position, carries out slow wire feeding to blank material and cuts cycloid 3, obtain cycloid gear blank (as shown in Figure 2)；
Step 4：The cycloid gear blank obtaining step 3 carries out stress relief annealing process, temperature 580 DEG C～600 DEG C,
After temperature retention time 7 hours, then after being cooled to 180 DEG C～200 DEG C with stove, come out of the stove；
Step 5:The cycloid gear blank coming out of the stove step 4, on the basis of cycloid, enters to its via hole 4 and dead eye 2
Row processing, obtains cycloid gear workpiece；
Step 6：Quenching；The cycloid gear workpiece obtaining step 5 lies on bin, in 900 DEG C～920 DEG C process
After 1.5～2 hours, then dropping to 840 DEG C of quenchings of coming out of the stove, quenching oil temperature is 90 DEG C, and the cycloid gear surface of the work after quenching is hard
Degree reaches HRC55；
Step 7：Tempering；Cycloid gear workpiece after processing step 6 is tempered 80 minutes at 580 DEG C～600 DEG C, to disappear
De-stress.
Cycloid gear workpiece after processing step 7 carries out finished machined；Cycloid gear work after finished machined is processed
Part, is processed by shot blasting in abrasive flow machining device, polishing time is 10～30 seconds, obtains RV cycloid gear.
Blank material described in step one is any one in 20CrNiMo or GCr15.
Cycloid gear blank described in step 3 is cut into slices, i.e. be cut to needed for more than one piece (such as the third step of Fig. 2) thick
The cycloid gear blank of degree.
Described in step 5, via hole 4 is circular hole and/or irregularly-shaped hole.
The present invention mainly uses slow wire feeding to be processed gear cycloid, uses Abrasive Flow Machining to enter cycloid gear
Row polishing, the cycloid gear surface roughness after processing is low, dimensional accuracy is high.Compare traditional rough turn-finish turning-gear hobbing-
Shaving-gear-grinding process, significantly improves production efficiency, and avoids all kinds of height needed for rough turn-finish turning-gear hobbing-shaving-roll flute
The expensive cost that precision machine is brought, has extraordinary prospect of production.
As described above, just can preferably realize the present invention.
Embodiments of the present invention are simultaneously not restricted to the described embodiments, other any Spirit Essences without departing from the present invention
With the change made under principle, modification, replacement, combination, simplification, all should be the substitute mode of equivalence, be included in the present invention's
Within protection domain.
Claims (6)
1. the non-traditional processing method of a RV cycloid gear, it is characterised in that comprise the steps：
Step one：Select round metal blank as blank material；
Step 2：It by blank material normalized treatment described in step one, is i.e. heated to 900 DEG C～920 DEG C to it, after being incubated 1 hour, then
After being as cold as 580 DEG C～600 DEG C soon and being incubated 1 hour, take out from stove and naturally cool to room temperature；
Step 3：Blank material after carrying out normalized treatment to step 2 carries out center hole (1) processing, more fixed with center hole
Position, carries out slow wire feeding and cuts cycloid (3), obtain cycloid gear blank to blank material；
Step 4：The cycloid gear blank obtaining step 3 carries out stress relief annealing process, temperature 580 DEG C～600 DEG C, insulation
After 7 hours time, then after being cooled to 180 DEG C～200 DEG C with stove, come out of the stove；
Step 5:The cycloid gear blank coming out of the stove step 4, on the basis of cycloid, enters to its via hole (4) and dead eye (2)
Row processing, obtains cycloid gear workpiece；
Step 6：Quenching；The cycloid gear workpiece obtaining step 5 lies on bin, processes 1.5 in 900 DEG C～920 DEG C
After～2 hours, then dropping to 840 DEG C of quenchings of coming out of the stove, quenching oil temperature is 90 DEG C, and the cycloid gear surface of the work hardness after quenching reaches
To HRC55；
Step 7：Tempering；Cycloid gear workpiece after processing step 6 is tempered 80 minutes at 580 DEG C～600 DEG C, answers to eliminate
Power.
2. the non-traditional processing method of RV cycloid gear according to claim 1, it is characterised in that：Pendulum after step 7 is processed
Line gear workpiece carries out finished machined.
3. the non-traditional processing method of RV cycloid gear according to claim 2, it is characterised in that：After finished machined is processed
Cycloid gear workpiece, is processed by shot blasting in abrasive flow machining device, polishing time is 10～30 seconds, obtains RV cycloid tooth
Wheel.
4. the non-traditional processing method of RV cycloid gear according to claim 1, it is characterised in that：Described in step one, blank material is
Any one in 20CrNiMo or GCr15.
5. the non-traditional processing method of RV cycloid gear according to claim 1, it is characterised in that：By cycloid tooth described in step 3
Wheel blank section, i.e. be cut to the cycloid gear blank of more than one piece desired thickness.
6. the non-traditional processing method of RV cycloid gear according to claim 1, it is characterised in that：Via hole described in step 5
(4) it is circular hole and/or irregularly-shaped hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566718.6A CN106425340A (en) | 2016-07-15 | 2016-07-15 | Non-traditional machining method of RV cycloid gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566718.6A CN106425340A (en) | 2016-07-15 | 2016-07-15 | Non-traditional machining method of RV cycloid gear |
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| CN106425340A true CN106425340A (en) | 2017-02-22 |
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ID=58184160
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| CN201610566718.6A Pending CN106425340A (en) | 2016-07-15 | 2016-07-15 | Non-traditional machining method of RV cycloid gear |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962361A (en) * | 2017-12-13 | 2018-04-27 | 薛璐浩 | A kind of linkage rod tooth form and its processing method |
| CN110682068A (en) * | 2019-10-24 | 2020-01-14 | 万星塑胶制品（上海）有限公司 | Method for machining large-helix precision gear through CNC slow-walking wire cutting |
| CN111299983A (en) * | 2020-03-18 | 2020-06-19 | 中国船舶重工集团公司第七0七研究所 | Method for processing duplex gear for high-precision planetary cycloidal pin gear speed reducer |
| CN114227173A (en) * | 2021-12-30 | 2022-03-25 | 中航工业南京伺服控制***有限公司 | Process method for improving machining efficiency of jet sheet |
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| JPH05177454A (en) * | 1991-12-25 | 1993-07-20 | Taiyo Shoji Kk | Manufacture of girth gear |
| CN101825154A (en) * | 2010-05-01 | 2010-09-08 | 吴声震 | Wind generating dual-cycloid variable-blade reducer |
| CN102794622A (en) * | 2012-09-11 | 2012-11-28 | 广州泰胜数控机械有限公司 | Machining method of precise inner gear |
| CN104894357A (en) * | 2015-05-25 | 2015-09-09 | 哈尔滨飞机工业集团有限责任公司 | Method for preventing U-shaped gear part from machining deformation and supporting checking tool |
| CN105710619A (en) * | 2015-11-06 | 2016-06-29 | 华南理工大学 | Low-cost and high-efficiency machining method for cycloid gears |
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2016
- 2016-07-15 CN CN201610566718.6A patent/CN106425340A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05177454A (en) * | 1991-12-25 | 1993-07-20 | Taiyo Shoji Kk | Manufacture of girth gear |
| CN101825154A (en) * | 2010-05-01 | 2010-09-08 | 吴声震 | Wind generating dual-cycloid variable-blade reducer |
| CN102794622A (en) * | 2012-09-11 | 2012-11-28 | 广州泰胜数控机械有限公司 | Machining method of precise inner gear |
| CN104894357A (en) * | 2015-05-25 | 2015-09-09 | 哈尔滨飞机工业集团有限责任公司 | Method for preventing U-shaped gear part from machining deformation and supporting checking tool |
| CN105710619A (en) * | 2015-11-06 | 2016-06-29 | 华南理工大学 | Low-cost and high-efficiency machining method for cycloid gears |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962361A (en) * | 2017-12-13 | 2018-04-27 | 薛璐浩 | A kind of linkage rod tooth form and its processing method |
| CN110682068A (en) * | 2019-10-24 | 2020-01-14 | 万星塑胶制品（上海）有限公司 | Method for machining large-helix precision gear through CNC slow-walking wire cutting |
| CN111299983A (en) * | 2020-03-18 | 2020-06-19 | 中国船舶重工集团公司第七0七研究所 | Method for processing duplex gear for high-precision planetary cycloidal pin gear speed reducer |
| CN114227173A (en) * | 2021-12-30 | 2022-03-25 | 中航工业南京伺服控制***有限公司 | Process method for improving machining efficiency of jet sheet |
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