CN102581580A - Process used for machining inner gear ring with large module and deep tooth space - Google Patents
Process used for machining inner gear ring with large module and deep tooth space Download PDFInfo
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- CN102581580A CN102581580A CN2012100648212A CN201210064821A CN102581580A CN 102581580 A CN102581580 A CN 102581580A CN 2012100648212 A CN2012100648212 A CN 2012100648212A CN 201210064821 A CN201210064821 A CN 201210064821A CN 102581580 A CN102581580 A CN 102581580A
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Abstract
The invention discloses a process used for machining an inner gear ring with large module and deep tooth space, which comprises the steps of forging, normalizing, rough turning, finish turning, gear shaping and gear broaching. For forging, 20CrMnTi material is chosen, an excircle with 4mm of thickness is added, an inner diameter is decreased by 4mm, and the total height is increased by 4mm on the basis of a finished product dimension to form a forging dimension; for normalizing, a gear ring is placed at high temperature for heat preservation for a time period and then drawn from a furnace for air cooling; for rough turning, oxide scale and most of allowances are removed for the air-cooled gear ring, and 0.5mm allowance is left at each side; for finish turning, the thickness of the excircle and the total height of the gear ring after rough turning is processed to the desired dimension through finish turning, and the inner hole has 0.2mm allowance left; for gear shaping, gear shaping is carried out to the inner gear ring of the gear ring after finish turning, and an inter-rod distance dimension is shaped to be 0.4 mm less than that of a finished product; and for gear broaching, finally a tooth shape and the small diameter of the inner gear ring are broached to the finished product dimension to obtain the finished product of the inner gear ring. The process of the invention can effectively improve the gear shape precision and the consistency of gear ring dimensions, and reduce the internal stress of the gear ring.
Description
Technical field
The present invention relates to a kind of technology that is used for the dark teeth groove ring gear of machining large-modulus.
Background technology
The profile accuracy of gear ring is very big to service behaviour, bearing capacity, noise and the influence in service life of machine, so strict control processing profile of tooth is very important.The method of processing involute spline ring gear is more, and method commonly used is to adopt pinion cutter gear shaping and broaching tool to draw tooth.The operating efficiency of gear shaping is lower with respect to drawing tooth, and the uniformity of ring gear is relatively poor; Draw the operating efficiency of tooth higher, but to the requirement of equipment and cutter than higher, especially for the ring gear of the dark teeth groove of big modulus, disposable to draw the tooth moulding be unpractical, if but adopt the gear shaping not only can not precision but also can not be protected.Therefore the enterprise that produces the dark teeth groove ring gear of big modulus very urgently hopes guaranteed profile accuracy and uniformity, and the high technology of feasibility is processed this type of ring gear.
Summary of the invention
The invention provides the technology of the dark teeth groove ring gear of a kind of machining large-modulus; This technology has solved the tooth Profile Machining problem of the dark teeth groove ring gear of big modulus, adopts this technology simultaneously, can improve profile accuracy effectively; Improve the uniformity of gear ring size, reduced the internal stress of gear ring.
The present invention has adopted following technical scheme: a kind of technology that is used for the dark teeth groove ring gear of machining large-modulus, and it may further comprise the steps: step 1, forge; At first select the 20CrMnTi material for use; Calculate it according to finished product gear ring size and forge size, cylindrical adds 4mm on its finished size basis, and internal diameter reduces 4mm; Height overall adds 4mm, constitutes to forge size; Step 2, normalizing, at high temperature the gear ring with the forging of the formation in step 1 size is incubated a period of time, and it is air-cooled to come out of the stove then; Step 3, rough turn, the gear ring after air-cooled is removed descale and most of surplus, the monolateral 0.5mm surplus of staying; Step 4, finish turning, to size, endoporus stays the 0.2mm surplus with the cylindrical of the gear ring after rough turn, height overall finish turning; Step 5, gear shaping carries out gear shaping to the ring gear of the gear ring behind the finish turning; Stride very little being inserted into of excellent carpenters square and stride rod apart from little 0.4mm than finished product; Because gear ring is just inserted, and is less demanding to the precision and the roughness of gear ring, so thick gear shaping can suitably improve spindle speed and peripheral speed; Step 6 is drawn tooth, moves ring gear profile of tooth and path to finished size at last, obtains finished product.
The gear ring that under 920 ℃, the formation in the step 1 is forged size in the said step 2 is incubated; Temperature retention time is 2 hours in the said step 2.
The present invention has following beneficial effect: the invention solves the tooth Profile Machining problem of the dark teeth groove ring gear of big modulus, adopt this technology simultaneously, can improve profile accuracy effectively, improve the uniformity of gear ring size, reduced the internal stress of gear ring.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
As shown in Figure 1, a kind of technology that is used for the dark teeth groove ring gear of machining large-modulus, it may further comprise the steps: step 1; Forge, at first select the 20CrMnTi material for use, calculate it according to finished product gear ring size and forge size; Cylindrical adds 4mm on its finished size basis; Internal diameter reduces 4mm, and height overall adds 4mm, constitutes to forge size; Step 2, normalizing, the gear ring with the forging of the formation in step 1 size under 920 ℃ is incubated 2 hours, and it is air-cooled to come out of the stove then; Step 3, rough turn, the gear ring after air-cooled is removed descale and most of surplus, the monolateral 0.5mm surplus of staying; Step 4, finish turning, to size, endoporus stays the 0.2mm surplus with the cylindrical of the gear ring after rough turn, height overall finish turning; Step 5, gear shaping carries out gear shaping to the ring gear of the gear ring behind the finish turning, strides excellent carpenters square and cun is inserted into than finished product and strides rod apart from little 0.4mm; Step 6 is drawn tooth, moves ring gear profile of tooth and path to finished size at last, obtains finished product.
Claims (3)
1. technology that is used for the dark teeth groove ring gear of machining large-modulus is characterized in that it may further comprise the steps:
Step 1 is forged, and at first selects the 20CrMnTi material for use, calculates it according to finished product gear ring size and forges size, and cylindrical adds 4mm on its finished size basis, and internal diameter reduces 4mm, and height overall adds 4mm, constitutes and forges size;
Step 2, normalizing, at high temperature the gear ring with the forging of the formation in step 1 size is incubated a period of time, and it is air-cooled to come out of the stove then;
Step 3, rough turn, the gear ring after air-cooled is removed descale and most of surplus, the monolateral 0.5mm surplus of staying;
Step 4, finish turning, to size, endoporus stays the 0.2mm surplus with the cylindrical of the gear ring after rough turn, height overall finish turning;
Step 5, gear shaping carries out gear shaping to the ring gear of the gear ring behind the finish turning, strides excellent carpenters square and cun is inserted into than finished product and strides rod apart from little 0.4mm;
Step 6 is drawn tooth, moves ring gear profile of tooth and path to finished size at last, obtains finished product.
2. a kind of technology that is used for the dark teeth groove ring gear of machining large-modulus according to claim 1 is characterized in that in the said step 2 that under 920 ℃ the gear ring that the formation in the step 1 is forged size is incubated.
3. a kind of technology that is used for the dark teeth groove ring gear of machining large-modulus according to claim 1 is characterized in that temperature retention time is 2 hours in the said step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100648212A CN102581580A (en) | 2012-03-13 | 2012-03-13 | Process used for machining inner gear ring with large module and deep tooth space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100648212A CN102581580A (en) | 2012-03-13 | 2012-03-13 | Process used for machining inner gear ring with large module and deep tooth space |
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| CN102581580A true CN102581580A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100648212A Pending CN102581580A (en) | 2012-03-13 | 2012-03-13 | Process used for machining inner gear ring with large module and deep tooth space |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464983A (en) * | 2013-09-18 | 2013-12-25 | 江国辉 | Machining process for differential lock gear sleeve |
| CN103464991A (en) * | 2013-09-18 | 2013-12-25 | 江国辉 | Gear ring machining process |
| CN103639670A (en) * | 2013-12-18 | 2014-03-19 | 株洲齿轮有限责任公司 | Engagement sleeve manufacturing technique |
| CN103707019A (en) * | 2013-12-12 | 2014-04-09 | 浙江浦江齿轮有限公司 | Processing process of internal spline gear blank used in agricultural machinery equipment transmission case |
| CN110153662A (en) * | 2019-05-27 | 2019-08-23 | 上齿集团有限公司 | A kind of production technology of ring gear gear |
| CN112916789A (en) * | 2021-01-29 | 2021-06-08 | 南京康尼精密机械有限公司 | Clean forming process method of internal tooth profile |
Citations (5)
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|---|---|---|---|---|
| JPS61279438A (en) * | 1985-05-31 | 1986-12-10 | Sumitomo Metal Ind Ltd | Manufacture of metal mold for producing spur gear |
| CN101659002A (en) * | 2009-09-04 | 2010-03-03 | 重庆清平机械厂 | Thin-wall annular gear processing method |
| CN102198583A (en) * | 2010-03-25 | 2011-09-28 | 上海航发机械有限公司 | Inner gear machining method and special gear shaping clamp |
| US8061936B2 (en) * | 2009-01-30 | 2011-11-22 | Utica Enterprises, Inc. | Broach shaving apparatus |
| CN102275069A (en) * | 2011-07-20 | 2011-12-14 | 重庆市江汇机械有限责任公司 | Method for processing inner gear ring of automobile synchronizer |
-
2012
- 2012-03-13 CN CN2012100648212A patent/CN102581580A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61279438A (en) * | 1985-05-31 | 1986-12-10 | Sumitomo Metal Ind Ltd | Manufacture of metal mold for producing spur gear |
| US8061936B2 (en) * | 2009-01-30 | 2011-11-22 | Utica Enterprises, Inc. | Broach shaving apparatus |
| CN101659002A (en) * | 2009-09-04 | 2010-03-03 | 重庆清平机械厂 | Thin-wall annular gear processing method |
| CN102198583A (en) * | 2010-03-25 | 2011-09-28 | 上海航发机械有限公司 | Inner gear machining method and special gear shaping clamp |
| CN102275069A (en) * | 2011-07-20 | 2011-12-14 | 重庆市江汇机械有限责任公司 | Method for processing inner gear ring of automobile synchronizer |
Non-Patent Citations (1)
| Title |
|---|
| 李五庆、王清涛: "大模数内齿圈加工工艺", 《金属加工（冷加工）》, no. 14, 31 July 2008 (2008-07-31), pages 21 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464983A (en) * | 2013-09-18 | 2013-12-25 | 江国辉 | Machining process for differential lock gear sleeve |
| CN103464991A (en) * | 2013-09-18 | 2013-12-25 | 江国辉 | Gear ring machining process |
| CN103707019A (en) * | 2013-12-12 | 2014-04-09 | 浙江浦江齿轮有限公司 | Processing process of internal spline gear blank used in agricultural machinery equipment transmission case |
| CN103707019B (en) * | 2013-12-12 | 2016-08-17 | 洪新阳 | The processing technology of the inner spline gear gear teeth base used in Agricultural Machinery Equipment transmission case |
| CN103639670A (en) * | 2013-12-18 | 2014-03-19 | 株洲齿轮有限责任公司 | Engagement sleeve manufacturing technique |
| CN103639670B (en) * | 2013-12-18 | 2015-12-02 | 株洲齿轮有限责任公司 | Engaging sleeve manufacturing process |
| CN110153662A (en) * | 2019-05-27 | 2019-08-23 | 上齿集团有限公司 | A kind of production technology of ring gear gear |
| CN112916789A (en) * | 2021-01-29 | 2021-06-08 | 南京康尼精密机械有限公司 | Clean forming process method of internal tooth profile |
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Application publication date: 20120718 |