CN102133663A - Gear hobbing method for protecting hobbing cutter during hobbing of spline shaft - Google Patents
Gear hobbing method for protecting hobbing cutter during hobbing of spline shaft Download PDFInfo
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- CN102133663A CN102133663A CN2010100182567A CN201010018256A CN102133663A CN 102133663 A CN102133663 A CN 102133663A CN 2010100182567 A CN2010100182567 A CN 2010100182567A CN 201010018256 A CN201010018256 A CN 201010018256A CN 102133663 A CN102133663 A CN 102133663A
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- Prior art keywords
- gear hobbing
- hobbing
- interference region
- splined shaft
- hot charging
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Abstract
The invention provides a gear hobbing method for protecting a hobbing cutter during the hobbing of a spline shaft. The method comprises the following steps of: calculating the axial interference length and the radial interference width of the hobbing cutter; before hobbing, turning a gear hobbing interference region according to the axial length and the radial width by using a lathe; performing gear hobbing on a spline gear hobbing region by using a spline hobbing cutter; after gear hobbing of the spline shaft is completed, sleeving a hot charging sleeve at the periphery of the turned gear hobbing interference region; and performing finish machining on the outer edge of the hot charging sleeve by using the lathe. By adopting the gear hobbing method, an interference position in the gear hobbing interference region is removed by turning in advance, the hobbing cutter can smoothly feed on the spline gear hobbing region without being interfered, the gear hobbing efficiency is increased, the service life of the hobbing cutter is prolonged, the workload of a machine tool is reduced, and the quality of a processed gear is effectively ensured.
Description
Technical field
The present invention relates to the splined shaft processing technique field, the rolling cut processing method of protection hobboing cutter when relating in particular to a kind of rolling cut splined shaft.
Background technology
In the spline rolling cut processing of existing notch cuttype splined shaft blank, in order to reach the effective length of spline, when hobboing cutter during near the edge of gear hobbing, spling hob will destroy near stairstepping splined shaft blank large-diameter portion position, place as positions such as bearing guard, oil sealing installations, this position is the interference region of gear hobbing, and existing processing method is: the splined shaft blank is carried out rough turn → modifier treatment; Finish turning → peripheral milling is determined need be in the gear hobbing length L on the splined shaft blank of desiring gear hobbing; Defined splined shaft blank length L is carried out gear hobbing → car fall the interference region that is destroyed by hobboing cutter, a hot charging cover is installed on interference region then; Fig. 1 is described, and wherein, the splined shaft blank is 100, and its shape is notch cuttype, and the big footpath of splined shaft is of a size of D
1, directly be of a size of D at the bottom of the splined shaft
2, the splined shaft effective length is L, the cutter diameter of rolling cut spline is of a size of D
5, the notch cuttype blank is of a size of D near the maximum outside diameter of interference region (being used to install the position of bearing guard, oil sealing)
4, the length dimension that is destroyed by hobboing cutter when gear hobbing is A, because hobboing cutter rolling cut depth ratio when gear hobbing is bigger, the whole tooth that makes hobboing cutter is easy to damage hobboing cutter all in cutting.
So prior art exists not enough, need be improved.
Summary of the invention
The objective of the invention is; the hobbing method for processing of protection hobboing cutter when the defective that exists at above-mentioned prior art provides a kind of rolling cut splined shaft; by calculating at the gear hobbing front truck to fall and can produce the interference region that disturbs to hobboing cutter, improve the work efficiency of gear hobbing, prolonged hobboing cutter service life.
Technical scheme of the present invention is as follows: the hobbing method for processing of protection hobboing cutter during a kind of rolling cut splined shaft; the splined shaft blank is carried out rolling cut processing; described splined shaft blank is multidiameter shape; it is characterized in that: described multidiameter comprises spline gear hobbing zone and gear hobbing interference region; before gear hobbing is carried out in described spline gear hobbing zone; need described gear hobbing interference region is handled, specific process comprises the steps:
A, axial length and the radial width of calculating described gear hobbing interference region according to the size and the spling hob diameter of preprocessing stairstepping splined shaft blank;
B, described gear hobbing interference region is fallen its car by lathe;
C, spling hob carry out gear hobbing on described spline gear hobbing zone;
D, after described spline gear hobbing zone gear hobbing is finished, one hot charging cover is linked in the described gear hobbing interference region periphery of being fallen by car, by lathe the outer rim of described hot charging cover is processed, make described hot charging cover outer rim and length and the described gear hobbing interference region that fallen by car suitable.
Described method, wherein, the axial length of described gear hobbing interference region is size B, is calculated as follows:
The B=A+2.5 error range is 0.5mm (1)
Wherein: A=0.5*[D
5 2-(D
5-D
4+ D
2)
2]
0.5(2)
D
2Be footpath at the bottom of the spline, D
5Be spling hob diameter, D
4Be the external diameter of stairstepping splined shaft blank gear hobbing interference region, unit is mm
Described gear hobbing interference region radial width is size C, is calculated as follows:
C＝[D
4-(D
1+0.2)]/2 (3)
Wherein: D
1Be the big footpath of splined shaft size, unit is mm
Described method, wherein, described hot charging cover uses 45 steel cylinder truck systems after the modifier treatment to form.
Described method, wherein, the diameter of bore D of described hot charging cover
6Axle outer diameter D after being fallen by car with described gear hobbing interference region
3Identical, the cylindrical length of described hot charging cover is than the long 2mm of described gear hobbing interference region axial length B, and described hot charging cover external diameter is the outer diameter D of gear hobbing interference region
4Add 3mm.
Beneficial effect of the present invention is: owing to adopted technique scheme, car falls hobboing cutter interference region part in advance, make hobboing cutter when gear hobbing, can not touch the position of the splined shaft blank that when gear hobbing, can produce interference sections, the work efficiency of gear hobbing and the service life of hobboing cutter have been improved, and alleviated the live load of lathe, the quality of processing tooth also is effectively guaranteed.
Description of drawings
Fig. 1 is a prior art notch cuttype splined shaft blank gear hobbing schematic diagram;
Fig. 2 falls the interference region schematic diagram for notch cuttype splined shaft blank car of the present invention;
Fig. 3 is for installing hot charging cover schematic diagram additional after the notch cuttype splined shaft blank of the present invention gear hobbing.
The specific embodiment
The hobbing method for processing of protection hobboing cutter is clearer, clear and definite for making purpose of the present invention, technical scheme and advantage when the invention provides a kind of rolling cut splined shaft, below develops simultaneously with reference to accompanying drawing that the present invention is described in more detail for embodiment
Can disturb in disturbed zone in order to solve prior art hobboing cutter when the rolling cut splined shaft; make the hobboing cutter life-span reduce existing problem; innovation of the present invention is: fall and can produce the position of disturbing to hobboing cutter by calculating car; make hobboing cutter when gear hobbing, can not touch the position of the splined shaft blank that when gear hobbing, can produce interference sections; this position is to be used to install bearing guard; the position of parts such as oil sealing installation; carry out gear hobbing according to gear hobbing length (spline gear hobbing zone) then; finish the periphery that a hot charging cover identical with the physical dimension that is fallen by car is linked in after the gear hobbing zone, interference part; by lathe described hot charging cover is carried out fine finishining; make described hot charging cover cylindrical and length and the interference region position of being fallen by car identical; by above-mentioned processing method; the interference of having protected hobboing cutter to be run in traveling process makes and has obtained effective raising in service life of hobboing cutter.
In conjunction with the accompanying drawings 2 and 3, splined shaft blank of the present invention is multidiameter type parts, sub-headend zone and back-end region, the present invention carries out the spline gear hobbing to the front end area (L) of notch cuttype splined shaft blank 100, the back-end region of notch cuttype splined shaft blank 100 is the axle of diameter greater than front end area, and its diameter is D
4, the part that back-end region links to each other with front end area (being used to install the position of parts such as bearing guard, oil sealing) constitutes the interference region of a hobboing cutter.
Notch cuttype splined shaft blank 100 has comprised spline gear hobbing zone 101 (front end area, be that the splined shaft effective length is L) and gear hobbing interference region 102 (this zone is the position that is used to install parts such as bearing guard, oil sealing), hobboing cutter 200 acts on the spline gear hobbing zone 101, wherein, the big footpath of splined shaft of desire processing is of a size of D
1, directly be of a size of D at the bottom of the splined shaft
2, the splined shaft effective length is L, the cutter diameter of rolling cut spline is of a size of D
5, the axle shelves external diameter position that bearing or oil sealing are installed is of a size of D
4Guarantee that hobboing cutter can not disturbed by gear hobbing interference region 102 when gear hobbing, splined shaft size according to hobboing cutter and desire processing, calculate the size that influences interference region position in the hobboing cutter traveling process, interference region position 102 axial length B and radial width C are the parts that needs car to fall, the length dimension that is destroyed by hobboing cutter when gear hobbing is A, the A value is in beating the triangle of shadow part (shown in Fig. 1), tries to achieve A=0.5*[D with hook thigh string theorem
5 2-(D
5-D
4+ D
2)
2]
0.5.
Damage hobboing cutter too deeply for fear of hobboing cutter cutting, before gear hobbing, interference region position car fallen (as shown in Figure 2), with back-end region (as the position of bearing guard or oil sealing installation place) excircle dimension by diameter D
4Car is to diameter D
3The position, length dimension is B, the diameter D after car is fallen
3Greater than the big footpath of splined shaft dimension D
1Size 0.2mm, diameter D
3Tolerance get u6, axial length B is greater than the length A size 2～3mm that is destroyed by hobboing cutter, after doing to handle like this, just avoided interference during gear hobbing, improved the work efficiency of gear hobbing.
According to top description, the axial length B of gear hobbing interference region and radial width C be calculated as follows (unit: mm):
The B=A+2.5 error range is 0.5mm (1)
Wherein: the length A=0.5*[D that is destroyed by hobboing cutter
5 2-(D
5-D
4+ D
2)
2]
0.5(2)
Radial width C (gauge just) is: C=[D
4-(D
1+ 0.2)]/2 (3)
Before hob cutting, according to aforementioned calculation the gear hobbing interference region is fallen its car by lathe by axial length and radial width, hobboing cutter is just can be on spline gear hobbing area L very smooth and easy then carries out feed and can not be subjected to any interference.
When gear hobbing, according to shown in Figure 3, prepare a hot charging cover simultaneously, it is to form with 45 steel cylinder truck systems after the modifier treatment, hot charging cover endoporus size diameter D
6, just bore design is the shaft diameter D after falling with car
3Identical, tolerance is H7; Hot charging cover excircle dimension is (D
4+ 3mm), length dimension is (B+2mm), wait splined shaft to roll after, splined shaft is holded up, wounded in the battle key one head-up; Prepare clamp and hand hammer, hot charging is applied mechanically flame heat, it is rubescent to see that hot charging overlaps, and clamps with clamp to be set on the spline after hot charging overlaps, and unclamps clamp, with hand hammer tip-tap hot charging cover, makes its fall to putting in place; After the cooling of hot charging cover nature, splined shaft is placed into carries out fine finishining on the lathe, the cylindrical and the length of hot charging cover are put in place, promptly be processed into car and fall suitable the getting final product of shape before the interference region position 102.
It should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. the hobbing method for processing of rolling cut splined shaft time protection hobboing cutter; the splined shaft blank is carried out rolling cut processing; described splined shaft blank is multidiameter shape; it is characterized in that: described multidiameter comprises spline gear hobbing zone and gear hobbing interference region; before gear hobbing is carried out in described spline gear hobbing zone; need described gear hobbing interference region is handled, specific process comprises the steps:
A, axial length and the radial width of calculating described gear hobbing interference region according to the size and the spling hob diameter of preprocessing stairstepping splined shaft blank;
B, described gear hobbing interference region is fallen its car by lathe;
C, spling hob carry out gear hobbing on described spline gear hobbing zone;
D, after described spline gear hobbing zone gear hobbing is finished, one hot charging cover is linked in the described gear hobbing interference region periphery of being fallen by car, by lathe the outer rim of described hot charging cover is processed, make described hot charging cover outer rim and length and the described gear hobbing interference region that fallen by car suitable.
2. method according to claim 1 is characterized in that: the axial length of described gear hobbing interference region is size B, is calculated as follows:
The B=A+2.5 error range is 0.5mm (1)
Wherein: A=0.5*[D
5 2-(D
5-D
4+ D
2)
2]
0.5(2)
D
2Be footpath at the bottom of the spline, D
5Be spling hob diameter, D
4Be the external diameter of stairstepping splined shaft blank gear hobbing interference region, unit is mm
Described gear hobbing interference region radial width is size C, is calculated as follows:
C＝[D
4-(D
1+0.2)]/2 (3)
Wherein: D
1Be the big footpath of splined shaft size, unit is mm
3. method according to claim 1 is characterized in that: described hot charging cover uses 45 steel cylinder truck systems after the modifier treatment to form.
4. method according to claim 3 is characterized in that: the diameter of bore D of described hot charging cover
6Axle outer diameter D after being fallen by car with described gear hobbing interference region
3Identical, the cylindrical length of described hot charging cover is than the long 2mm of described gear hobbing interference region axial length B, and described hot charging cover external diameter is the outer diameter D of gear hobbing interference region
4Add 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010018256 CN102133663B (en) | 2010-01-21 | 2010-01-21 | Gear hobbing method for protecting hobbing cutter during hobbing of spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010018256 CN102133663B (en) | 2010-01-21 | 2010-01-21 | Gear hobbing method for protecting hobbing cutter during hobbing of spline shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102133663A true CN102133663A (en) | 2011-07-27 |
| CN102133663B CN102133663B (en) | 2013-05-08 |
Family
ID=44293664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010018256 Active CN102133663B (en) | 2010-01-21 | 2010-01-21 | Gear hobbing method for protecting hobbing cutter during hobbing of spline shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102133663B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846507B (en) * | 2012-12-04 | 2017-01-25 | 中车戚墅堰机车车辆工艺研究所有限公司 | Hobbing processing method of gear |
| CN107755826A (en) * | 2016-08-23 | 2018-03-06 | 克林格伦贝格股份公司 | Method for the flank of tooth of machined surface connection workpiece |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1356352A1 (en) * | 1986-01-02 | 1989-11-23 | Предприятие П/Я В-8721 | Method of making splines |
| US5356342A (en) * | 1987-11-06 | 1994-10-18 | White Hydraulics, Inc. | Teeth for a wobblestick |
| CN100525976C (en) * | 2007-09-20 | 2009-08-12 | 夏建敏 | Hob complete utilization integrated gear hobbing method |
-
2010
- 2010-01-21 CN CN 201010018256 patent/CN102133663B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846507B (en) * | 2012-12-04 | 2017-01-25 | 中车戚墅堰机车车辆工艺研究所有限公司 | Hobbing processing method of gear |
| CN107755826A (en) * | 2016-08-23 | 2018-03-06 | 克林格伦贝格股份公司 | Method for the flank of tooth of machined surface connection workpiece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102133663B (en) | 2013-05-08 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUXI RL PRECISION MACHINERY CO., LTD. Free format text: FORMER NAME: WUXI RUIER FINE MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Ding Shu Zhen Chuan Bu Cun Yixing City, Jiangsu province 214221 Patentee after: Wuxi City riel precision optical machinery company limited Address before: Ding Shu Zhen Chuan Bu Cun Yixing City, Jiangsu province 214222 Patentee before: Wuxi Ruier Fine Machinery Co., Ltd. |