CN201862864U - Modification gear shaving cutter - Google Patents
Modification gear shaving cutter Download PDFInfo
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- CN201862864U CN201862864U CN2010206270571U CN201020627057U CN201862864U CN 201862864 U CN201862864 U CN 201862864U CN 2010206270571 U CN2010206270571 U CN 2010206270571U CN 201020627057 U CN201020627057 U CN 201020627057U CN 201862864 U CN201862864 U CN 201862864U
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- tooth
- cutter
- gear
- skiving
- cutter tooth
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- 230000004048 modification Effects 0.000 title abstract 2
- 238000012986 modification Methods 0.000 title abstract 2
- 238000009826 distribution Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 13
- 210000003781 tooth socket Anatomy 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model discloses a modification gear shaving cutter which comprises a cutter body (1), cutter teeth (2) which are cut according to the full tooth profiles and tooth thickness of the normal cutter teeth of a standard gear shaving cutter, the normal cutter teeth (3) of the standard gear shaving cutter, and cutter teeth (4) which are cut according to the full tooth profiles and tooth socket of the normal cutter teeth of the standard gear shaving cutter; the cutter teeth (2), the cutter teeth (3) and the cutter teeth (4) are distributed alternatively on the cutter body (1) at intervals; the utility model adopts the gear shaving cutter to process a middle convex gear, and can obtain the ideal middle convex gear by selecting a reasonable cutting method and cutting amount to the cutter teeth of the gear shaving cutter; because the tooth shapes of the three types of cutter teeth are still standard involutes, the processed gear has better base pitch precision, and the noise of the gear is significantly improved.
Description
Technical field
The utility model relates to the gear machining technology field, particularly relates to a kind of correction of the flank shape gear shaver.
Background technology
Along with the deepening continuously and develop of grating of gears research, people recognize that gradually the tooth-formation of gear error is one of principal element that influences grating of gears, and wherein especially based on profile error.Under the identical situation of profile error value, the gear of flank concave is compared noise and is wanted much serious with the gear of profile of tooth convexity.Is two gears of 48 teeth such as modulus for the 2mm number of teeth, and the profile error value is identical, all is 0.015mm, but a flank concave, a profile of tooth convexity, both noises differ unexpectedly up to the 8-10 decibel.
Shaving is the method that Gear Processing generally adopts.Normal standard gear shaver is all used in the shaving processing of present most of gear professional production producer, and the gear that normal standard gear shaver shaving processes, profile of tooth is the concave profile of tooth, is unfavorable for the improvement of grating of gears.But though there is minority producer shaving to process the gear of profile of tooth convexity, its method that adopts is that correction of the flank shape is the concave profile of tooth with the middle part correction of the flank shape of standard gear shaver cutter tooth.Its shortcoming mainly contains two: the one, and the gear shaver cutter tooth flank concave after the correction of the flank shape is not the involute of standard, though the gear profile of tooth convexity that processes, the base pitch precision is bad, the DeGrain that grating of gears is improved; The 2nd, be with the concave profile of tooth of standard gear shaver cutter tooth middle part correction of the flank shape for needing, reconditioning work bothers very much, and needing repeatedly, the examination mill repeatedly just can reach requirement.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective that the convexity Gear Processing bothers in the prior art, the base pitch precision is bad, noise is big, and a kind of correction of the flank shape gear shaver is provided.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
The utility model provides a kind of correction of the flank shape gear shaver: comprise cutter hub, carried out the cutter tooth, the normal cutter tooth of standard gear shaver of the wide transverse tooth thickness skiving of full-depth tooth and carried out the cutter tooth of the wide teeth groove skiving of full-depth tooth by the normal cutter tooth of standard gear shaver by the normal cutter tooth of standard gear shaver that transverse tooth thickness skiving cutter tooth, normal cutter tooth and teeth groove skiving cutter tooth are in interval alternative distribution on cutter hub.
The profile of tooth of the transverse tooth thickness skiving cutter tooth of above-mentioned correction of the flank shape gear shaver and teeth groove skiving cutter tooth is the standard involute.
Have at least a skiving amount to equal the cydariform amount of the convexity gear of processing in the transverse tooth thickness skiving cutter tooth of above-mentioned correction of the flank shape gear shaver and the teeth groove skiving cutter tooth, another skiving amount is smaller or equal to the cydariform amount of processing convexity gear.
Three class cutters tooth are in interval alternative distribution and refer to three class cutters tooth and arrange in the following way on the aforementioned correction of the flank shape gear shaver: one or above transverse tooth thickness skiving cutter tooth, normal cutter tooth, one or above teeth groove skiving cutter tooth (identical with transverse tooth thickness skiving cutter tooth quantity), normal cutter tooth, with quantity transverse tooth thickness skiving cutter tooth, normal cutter tooth, with quantity teeth groove skiving cutter tooth ..., as depicted in figs. 1 and 2.
Operation principle of the present utility model: because gear shaver transverse tooth thickness skiving cutter tooth, teeth groove skiving cutter tooth and normal cutter tooth are in interval alternative distribution on gear shaver, therefore, shaving adds the cutter tooth of gear shaver in man-hour and the registration of workpiece will be slightly less than 1, the situation of line external toothing will appear in the processing transient process, and the line external toothing makes workpiece do retarded motion, processes the gear of convexity profile of tooth.
Adopt the correction of the flank shape gear shaver to process the convexity gear, can occur line external toothing situation as shown in Figure 4 and Figure 5 in the process.As shown in Figure 4, normal cutter tooth cuts at the A1B1 point, when cutter is turned back to the position of Fig. 5 continuously, normal cutter tooth should be released engagement, but because of the both sides of transverse tooth thickness skiving cutter tooth by skiving, do not participate in engagement, the line external toothing situation of cutter tooth top and workpiece tooth root has promptly taken place at the row of scraping of workpiece tooth root in the normal cutter tooth of the transmission depends of motion.Because during the line external toothing, the rotating speed of workpiece slows down, make that near the removal amount the A2 point of workpiece left side reduces, profile of tooth is protruded, and in this case, the line external toothing makes the workpiece flank profil occur rising.Same analysis can know that teeth groove skiving cutter tooth makes workpiece the high profile of tooth feature of root occur.Therefore, the skiving mode difference of gear shaver cutter tooth is also different to the influence of workpiece profile of tooth.The gear shaver cutter tooth is selected rational skiving mode and skiving amount, just can obtain desirable convexity profile of tooth.
Compared with prior art, the utility model adopts the gear shaver of correction of the flank shape to add work gear, not only can avoid the shaving flank concave, also can obtain desirable convexity profile of tooth by the gear shaver cutter tooth being selected rational skiving amount, when gear shaver transverse tooth thickness skiving cutter tooth, when the profile of tooth of this three classes cutter tooth of teeth groove skiving cutter tooth and normal cutter tooth still is the involute of standard, the gear base pitch precision that is processed is better, grating of gears is significantly improved, simultaneously, because skiving tooth profile of tooth still is the involute of standard, so cutter tooth profile of tooth reconditioning work is simple and easy to do, need the trouble of examination mill repeatedly when having avoided correction of the flank shape method in middle part to repair the cutter tooth profile of tooth into the concave profile of tooth, can improve existing shaving technological level greatly.
Description of drawings
Fig. 1 and Fig. 2 are the structural representations of two examples of the utility model correction of the flank shape gear shaver;
Fig. 3 is the utility model correction of the flank shape gear shaver side view (half section);
Fig. 4 and Fig. 5 are process center line external toothing situation schematic diagrames, and thick line is the skiving layer.
The specific embodiment
Processing work parameter and profile of tooth require: modulus m=1.5mm, number of teeth z=65, pressure angle α=20o, profile of tooth Ff=0.015mm, profile of tooth convexity amount ε=0.005mm.
Correction of the flank shape gear shaver: m=1.5mm, number of teeth z=195, pressure angle α=20o, several 195 of gear shaver cutter tooth, the profile of tooth of 195 cutters tooth is the involute of standard.Wherein transverse tooth thickness skiving cutter tooth is 90, skiving amount 0.003～0.005mm; 90 of teeth groove skiving cutters tooth, skiving amount 0.003～0.005mm; 15 of normal cutters tooth.The arrangement position of three class cutters tooth on gear shaver is: 6 transverse tooth thickness skiving cutters tooth, 1 normal cutter tooth, 6 teeth groove skiving cutters tooth are in interval alternative distribution.
When utilizing above-mentioned correction of the flank shape gear shaver processing work, adopt conventional shaving technology, that is: gear hobbing (staying and shaving surplus is 0.05mm) before tooth embryo roughing, heat treatment, the fine finishining of tooth embryo, the shaving, shaving.The workpiece that shaving processes detects through metering, its profile of tooth Ff=0.011mm, and profile of tooth convexity amount ε=0.005mm meets the requirements.
Claims (3)
1. correction of the flank shape gear shaver of processing the convexity gear, it is characterized in that: comprise cutter hub (1), carried out the cutter tooth (2), the normal cutter tooth of standard gear shaver (3) of the wide transverse tooth thickness skiving of full-depth tooth and carried out the cutter tooth (4) of the wide teeth groove skiving of full-depth tooth that transverse tooth thickness skiving cutter tooth (2), normal cutter tooth (3) and teeth groove skiving cutter tooth (4) are in interval alternative distribution on cutter hub (1) by the normal cutter tooth of standard gear shaver by the normal cutter tooth of standard gear shaver.
2. according to the correction of the flank shape gear shaver of the described processing convexity of claim 1 gear, it is characterized in that: the profile of tooth of described transverse tooth thickness skiving cutter tooth (2) and teeth groove skiving cutter tooth (4) is the standard involute.
3. according to the correction of the flank shape gear shaver of the described processing convexity of claim 1 gear, it is characterized in that: have at least a skiving amount to equal the cydariform amount of the convexity gear of processing in transverse tooth thickness skiving cutter tooth (2) and the teeth groove skiving cutter tooth (4), another skiving amount is smaller or equal to the cydariform amount of processing convexity gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206270571U CN201862864U (en) | 2010-11-26 | 2010-11-26 | Modification gear shaving cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206270571U CN201862864U (en) | 2010-11-26 | 2010-11-26 | Modification gear shaving cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201862864U true CN201862864U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206270571U Expired - Lifetime CN201862864U (en) | 2010-11-26 | 2010-11-26 | Modification gear shaving cutter |
Country Status (1)
| Country | Link |
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| CN (1) | CN201862864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476263A (en) * | 2010-11-26 | 2012-05-30 | 贵州群建精密机械有限公司 | Method for processing middle convex gear by adopting shaving cutter and modified shaving cutter |
-
2010
- 2010-11-26 CN CN2010206270571U patent/CN201862864U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476263A (en) * | 2010-11-26 | 2012-05-30 | 贵州群建精密机械有限公司 | Method for processing middle convex gear by adopting shaving cutter and modified shaving cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tianjin Taiwei Gear Co.,Ltd. Assignor: Guizhou Qunjian Precision Machine Co., Ltd. Contract record no.: 2013120000063 Denomination of utility model: Modification gear shaving cutter Granted publication date: 20110615 License type: Exclusive License Record date: 20131126 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |