CN1943972A - Method for processing sector gear - Google Patents
Method for processing sector gear Download PDFInfo
- Publication number
- CN1943972A CN1943972A CN 200610201091 CN200610201091A CN1943972A CN 1943972 A CN1943972 A CN 1943972A CN 200610201091 CN200610201091 CN 200610201091 CN 200610201091 A CN200610201091 A CN 200610201091A CN 1943972 A CN1943972 A CN 1943972A
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- sector gear
- tooth
- frock plate
- roughing
- processing
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Abstract
The sector gear machining process includes the following steps: 1. machining of sector gear blank while sufficient trimming allowances of inner hole and outer circle; 2. making chucking plate based on the sizes of the sector gear; 3. machining the sector gear blank together with the chucking plate via turning; 4. hobbing after mounting hobbing mandrel; and 5. grinding after mounting gear grinding mandrel. The machining process is simple, low in cost, small in deformation and high in efficiency.
Description
Technical field:
The present invention relates to a kind of processing method of sector gear.
Technical background:
Sector gear is a kind of incomplete dish-type gear, because its profile is similar to fan, therefore is called sector gear.Develop rapidly along with science and technology, sector gear is widely used in the gear drive of various radar tracking monitoring systems at present, therefore, accuracy class to sector gear is had relatively high expectations, generally all more than 6 grades, must adopt roll flute processing just can reach the profile accuracy class requirement in GB.
Sector gear is owing to be subjected to the restriction of planform, and its existing processing method has: cut into needed shape again after one, earlier sector gear being made complete tooth; Two, earlier the sector base is carried out back reprocessing parts of tooth.Method one can adopt the hobbing method of high benefit to carry out roughing in the tooth Profile Machining process, adopt teeth grinding method to carry out fine finishining then and improve profile accuracy, but cut into needed when fan-shaped, owing to the existence of machining stress causes the sector gear distortion, destroy the precision of sector gear and influence use.Method two can only adopt the Gear Shaping profile of tooth after earlier the sector base being carried out, and the Gear Shaping profile accuracy is low, working (machining) efficiency is also lower, and tooth base endoporus and cylindrical have all been accomplished final size, and the stress after the tooth Profile Machining also can cause the distortion of sector gear and lose due precision; For the sector gear that requires the hard flank of tooth, after Quenching Treatment, because the distortion of endoporus, cylindrical and profile of tooth aspect that heat treatment stress causes can't be revised.
Summary of the invention:
The technical problem to be solved in the present invention is: propose a kind of method for processing sector gear, to overcome the deficiency that distortion is big, working (machining) efficiency is low that prior art exists.
The present invention is achieved in that it may further comprise the steps:
The first, tooth base roughing
The tooth base is processed into the shape that drawing needs, and endoporus and cylindrical is stopped correcting margin according to the sector gear shape and structure and the size that may produce distortion.
The second, make the frock plate
Planform size according to sector gear when complete is made frock plate, the outside diameter D of frock plate
1, diameter of bore d
1Respectively with the roughing of sector gear teeth base in outside diameter D, diameter of bore d consistent size, the width B of frock plate
1More than or equal to the width B in the roughing of tooth base, the material of frock plate is consistent with workpiece with condition of heat treatment (normalizing or modified), and the depth of parallelism on frock plate two planes is less than or equal to 0.02mm.
Three, tooth base fine finishining
The sector base that roughing is good is in the same place with frock plate clamping.When the sector gear width B is thin,, can adopt many combination processing for utilization rate and the economic worth that improves the frock plate;
Support frock plate endoporus, finish turning frock plate and excircle of workpiece are reserved mill allowance; Block frock plate and excircle of workpiece then, finish turning frock plate and workpiece endoporus are reserved mill allowance.
Four, profile of tooth roughing
Load onto the gear hobbing mandrel and carry out gear hobbing, common normal is stayed mill surplus 0.2～0.8mm.Wherein, for soft flank of tooth sector gear, common normal is stayed mill surplus 0.2～0.4mm; For hard flank of tooth sector gear, common normal is stayed mill surplus 0.4～0.8mm.After the roughing of soft flank of tooth sector gear profile of tooth, need carry out Ageing Treatment and eliminate the stress that tooth Profile Machining produces, revise endoporus and cylindrical then behind the figure paper size, carry out roll flute processing; The hard flank of tooth then carries out roll flute processing after the heat treatment on request again.
Five, profile of tooth fine finishining
Load onto roll flute mandrel roll flute to the design parameter requirement.
Key point of the present invention is as follows:
1. the roughing of tooth base becomes needed fan-shaped, and installation location endoporus, cylindrical, the facewidth are all stayed certain allowance for finish;
2. be connected with the frock backing plate with the tooth base of bolt after, beat the alignment pin location simultaneously, promptly utilize the dowel hole and the connection screwed hole of sector gear itself roughing;
3. thick, the fine finishining of fine finishining of tooth base and profile of tooth is all combined with the frock backing plate, thereby the processing of sector gear is become the processing of the dish-type gear with complete hole.
The invention has the beneficial effects as follows: simple and convenient, economical and practical, be easy to guarantee the crudy of product.
Description of drawings:
Fig. 1: sector gear schematic diagram, front view;
The A Abandon cutaway view of Fig. 2: Fig. 1
Fig. 3: frock backing plate schematic diagram, front view;
Fig. 4: the C-C cutaway view among Fig. 3;
Fig. 5: the frock backing plate connects schematic diagram, front view with workpiece;
Fig. 6: the F--F cutaway view among Fig. 5.
The specific embodiment:
Embodiments of the invention: need the sector gear segment angle of processing to be: 360o-α, blank dimension is: outside diameter D, diameter of bore d, width B, its process may further comprise the steps:
The first, tooth base roughing
The tooth base is processed into the shape that drawing needs, and endoporus and cylindrical is stopped correcting margin according to the sector gear shape and structure and the size that may produce distortion.
The second, make the frock plate
Planform size according to sector gear when complete is made frock plate, the outside diameter D of frock plate
1, diameter of bore d
1Respectively with the roughing of sector gear teeth base in outside diameter D, diameter of bore d consistent size, the width B of frock plate
1More than or equal to the width B in the roughing of tooth base, the material of frock plate is consistent with workpiece with condition of heat treatment (normalizing or modified), and the depth of parallelism on frock plate two planes is less than or equal to 0.02mm.
Three, tooth base fine finishining
1. roughing is good sector base is in the same place with frock plate clamping.When the sector gear width B is thin,, can adopt many combination processing for utilization rate and the economic worth that improves the frock plate;
2. support frock plate endoporus, finish turning frock plate and excircle of workpiece are reserved mill allowance; Block frock plate and excircle of workpiece then, finish turning frock plate and workpiece endoporus are reserved mill allowance.
Because sector gear all has dowel hole and connects screwed hole in assembling is used, therefore when making up, utilize dowel hole and connect screwed hole to connect with the frock plate, need not to increase fabrication hole.In hard flank of tooth sector gear processing, because of needing to heat-treat after the profile of tooth roughing, consider the heat treatment deformation factor, dowel hole needs made allowance, and is finish-machined to drawing needs size after final heat treatment.
Four, profile of tooth roughing
Load onto the gear hobbing mandrel and carry out gear hobbing, common normal is stayed mill surplus 0.2～0.8mm.Wherein, for soft flank of tooth sector gear, common normal is stayed mill surplus 0.2～0.4mm; For hard flank of tooth sector gear, common normal is stayed mill surplus 0.4～0.8mm.After the roughing of soft flank of tooth sector gear profile of tooth, need carry out Ageing Treatment and eliminate the stress that tooth Profile Machining produces, revise endoporus and cylindrical then behind the figure paper size, carry out roll flute processing; The hard flank of tooth then carries out roll flute processing after the heat treatment on request again.
When quenching, the hard flank of tooth should combine with the frock backing plate, the sector gear of dismantling after the quenching, and the plain grinding both ends of the surface revise dowel hole and make up with the frock backing plate behind the figure paper size again to gauge, process endoporus and cylindrical then to the figure paper size.
Five, profile of tooth fine finishining
Load onto roll flute mandrel roll flute to the design parameter requirement.
Claims (6)
1. method for processing sector gear, it is characterized in that: it may further comprise the steps:
The first, tooth base roughing
The tooth base is processed into the shape that drawing needs, and endoporus and cylindrical is stopped correcting margin according to the sector gear shape and structure and the size that may produce distortion;
The second, make the frock plate
Planform size according to sector gear when complete is made the frock plate, the outside diameter D1 of frock plate, diameter of bore d1 respectively with the roughing of sector gear teeth base in outside diameter D, diameter of bore d consistent size, the width B 1 of frock plate is more than or equal to the width B in the roughing of tooth base, the material of frock plate is consistent with condition of heat treatment and workpiece, and the depth of parallelism on frock plate two planes is less than or equal to 0.02mm;
Three, tooth base fine finishining
The sector base that roughing is good is in the same place with frock plate clamping, utilizes frock plate endoporus clamping earlier, and finish turning frock plate and excircle of workpiece are reserved mill allowance; Block frock plate and excircle of workpiece then, finish turning frock plate and workpiece endoporus are reserved mill allowance;
Four, profile of tooth roughing
Load onto the gear hobbing mandrel and carry out gear hobbing, common normal is stayed mill surplus 0.2～0.8mm;
Five, profile of tooth fine finishining
Load onto roll flute mandrel roll flute to the design parameter requirement.
2. method for processing sector gear according to claim 1 is characterized in that: in the fine finishining of tooth base, the sector gear workpiece utilizes the workpiece dowel hole with the combination of frock plate and connects screwed hole and connects.
3. method for processing sector gear according to claim 1 is characterized in that: for the processing of hard flank of tooth sector gear workpiece, and the dowel hole made allowance, and after final heat treatment, be finish-machined to drawing and need size.
4. method for processing sector gear according to claim 1 is characterized in that: in profile of tooth roughing, for soft flank of tooth sector gear, common normal is stayed mill surplus 0.2～0.4mm; For hard flank of tooth sector gear, common normal is stayed mill surplus 0.4～0.8mm.
5. method for processing sector gear according to claim 1 is characterized in that: after the roughing of soft flank of tooth sector gear profile of tooth, carry out Ageing Treatment, revise endoporus and cylindrical then behind the figure paper size, carry out roll flute processing; Carry out roll flute processing after the hard flank of tooth heat treatment again.
6. method for processing sector gear according to claim 1, it is characterized in that: in the fine finishining of tooth base, when the hard flank of tooth quenches and the frock backing plate combine, pull down sector gear after the quenching, and the plain grinding both ends of the surface are to gauge, revise dowel hole and behind the figure paper size, make up with the frock backing plate again, process endoporus and cylindrical then to the figure paper size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102010910A CN100418694C (en) | 2006-11-14 | 2006-11-14 | Method for processing sector gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102010910A CN100418694C (en) | 2006-11-14 | 2006-11-14 | Method for processing sector gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1943972A true CN1943972A (en) | 2007-04-11 |
| CN100418694C CN100418694C (en) | 2008-09-17 |
Family
ID=38043740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006102010910A Expired - Fee Related CN100418694C (en) | 2006-11-14 | 2006-11-14 | Method for processing sector gear |
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| Country | Link |
|---|---|
| CN (1) | CN100418694C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189424A (en) * | 2011-06-20 | 2011-09-21 | 无锡市新银叶机电制造有限公司 | Sector gear positioning/drilling tool fixture |
| CN106112400A (en) * | 2016-07-19 | 2016-11-16 | 马鞍山方圆回转支承股份有限公司 | A kind of super-large diameter multistage ring gear processing method |
| CN108637613A (en) * | 2018-03-24 | 2018-10-12 | 徐州迈斯特机械科技有限公司 | A kind of method for processing sector gear |
| CN114367707A (en) * | 2022-01-13 | 2022-04-19 | 重庆机床(集团)有限责任公司 | Efficient machining method for sector worm gear |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3472092A (en) * | 1967-10-30 | 1969-10-14 | Singer Co | Antibacklash gear |
| JPS5829540A (en) * | 1981-08-12 | 1983-02-21 | Toyota Motor Corp | Manufacture of gear with irregular tooth thickness and irregular tooth shape |
| DE19740286B4 (en) * | 1997-09-13 | 2004-03-18 | Volkswagen Ag | Component consisting of several layers of flat material and process for its production |
-
2006
- 2006-11-14 CN CNB2006102010910A patent/CN100418694C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189424A (en) * | 2011-06-20 | 2011-09-21 | 无锡市新银叶机电制造有限公司 | Sector gear positioning/drilling tool fixture |
| CN102189424B (en) * | 2011-06-20 | 2013-07-31 | 江苏新银叶传动机电有限公司 | Sector gear positioning/drilling tool fixture |
| CN106112400A (en) * | 2016-07-19 | 2016-11-16 | 马鞍山方圆回转支承股份有限公司 | A kind of super-large diameter multistage ring gear processing method |
| CN108637613A (en) * | 2018-03-24 | 2018-10-12 | 徐州迈斯特机械科技有限公司 | A kind of method for processing sector gear |
| CN114367707A (en) * | 2022-01-13 | 2022-04-19 | 重庆机床(集团)有限责任公司 | Efficient machining method for sector worm gear |
| CN114367707B (en) * | 2022-01-13 | 2023-11-14 | 重庆机床(集团)有限责任公司 | Efficient machining method for sector worm gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100418694C (en) | 2008-09-17 |
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Granted publication date: 20080917 Termination date: 20101114 |