GB2154911A - Manufacturing coupling teeth - Google Patents
Manufacturing coupling teeth Download PDFInfo
- Publication number
- GB2154911A GB2154911A GB08502612A GB8502612A GB2154911A GB 2154911 A GB2154911 A GB 2154911A GB 08502612 A GB08502612 A GB 08502612A GB 8502612 A GB8502612 A GB 8502612A GB 2154911 A GB2154911 A GB 2154911A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coupling
- rim
- teeth
- crown
- bevels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000008878 coupling Effects 0.000 title claims description 39
- 238000010168 coupling process Methods 0.000 title claims description 39
- 238000005859 coupling reaction Methods 0.000 title claims description 39
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 2
- 238000009966 trimming Methods 0.000 claims description 2
- 239000000306 component Substances 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/28—Making other particular articles wheels or the like gear wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49462—Gear making
- Y10T29/49467—Gear shaping
- Y10T29/49472—Punching or stamping
Description
SPECIFICATION
Method for manufacturing coupling teeth The present invention relates to a method of manufacturing coupling teeth, more particuIalry for coupling tooth systems of synchronisation systems having crown bevels and rearcut sections.
In present day gear boxes for motor vehicles, synchromesh devices are provided for making the gear changes. These synchromesh systems basicaly consist of a synchronous hub in driving connection with the driven shaft of the gearbox and a sliding sleeve which is axially displaceable but secure against rotation on the outer perimeter of the hub and which can act via synchro forks on synchro rings which interact with a cone face and a coupling tooth system on the gear wheel which is freely journalled on the driven shaft.
So that they may follow more easily the corresponding inner gearing of the sliding sleeve, coupling toothing of this kind must be provided with crown bevels and are provided in the tooth track with rear-cut sections in order to prevent the sliding sleeve from springing out when the teeth are engaged.
The coupling toothing formed on the freewheeling gear wheel thus had to be made in an expensive rolling butt process for which a radial groove had to remain between the gear wheel and coupling teeth to allow the butt knife to run out.
In order to fully utilise the structural length of a gear wheel for transmitting the torques and moreover to simplify the manufacture of the coupling toothing, it has already been proposed to form the coupling toothing on an initially separate component which is subsequently connected secure against rotation to the gear wheel.
The present invention relates more particu- larly to the manufacture of a component part 110 of this kind for a gear wheel and comprising a cone ring and a coupling rim.
According to the invention, there is provided a method for the manufacture of cou- pling teeth, particularly of coupling tooth systems having crown bevels and rear-cuts for synchronisation devices, characterized by the following method steps:
1. fine stamping of the crown bevels at the coupling rim; 11. trimming of the outer diameter of the coupling rim; Ill. bending of the coupling rim conically forward, opposite to the cutting direction into an angle corresponding to the desired rear cut 125 and punch cutting of the coupling tooth system; and IV. straightening the toothed coupling rim again in its radial plane. 65 As a result of these steps, the desired rear- 130 G132 15491 1A 1 cut section on the coupling gearing is reached without any extra finishing work.
The invention will now be explained in more detail, by way of example, with refer- ence to the accompanying drawings, in which:
Figure 1 illustrates a conventional synchronising system with a component part which has a cone ring and a coupling rim and which is separate from the gear wheel, and Figure 2 illustrates a sequence of processing stages, starting from the blank part through the corresponding intermediate stages to the finished part.
A conventional syncromesh system is indicated in Fig. 1. It consists basically of a synchronous hub 1 and a sliding sleeve 3 which is held secure against rotation on the outer perimeter of the hub by corresponding inner gearing 2 but which is axially displaceable and can act on a synchro ring 5 via a synchro fork 4.
A gear wheel 6 is connected secure against rotation in a suitable way to a separate com- ponent 7 which has a cone ring 8 and a coupling rim 9 with coupling toothing 10. The coupling toothing 10 should hereby, as necessary, have a crown bevel 11 which facilitates engagement and a rear-cut section on the gearing 10 which prevents the siding sleeve 3 from springing out.
The different processing steps for manufacturing the coupling toothing according to the invention are shown in Fig. 2.
In the section marked 0, the blank part 7 is shown with the cone ring 8 and the coupling rim 9. The blank part 7 can be designed as a sheet metal pressed part with corresponding deep-drawing of the cone ring 8 or as a forged part with subsequent processing.
In the method step I the crown bevel 11 for the coupling toothing is finestamped in a first tool and material is displaced radially outwards.
In the method step 11 the outer diameter 12 of the coupling ring 9 is cut off and finished.
In the method step III the coupling rim 9 is bent conically forwards against the cutting direction about an angle corresponding to the desired rear-cut section and the coupling gearing is manufactured by punch-cutting.
In method step IV the shape of the finished part is reached by straightening the coupling rim 9 back into the radial plane.
It is easy to see that the method described allows coupling toothing to be fine-stamped and fine-punched in a cost-effective way on a corresponding automatic fine-cutting machine with a four-stage tool starting from a simple blank and ending in the desired finished part.
A particular advantage compared to the rolling butting required up until now is that the demand by driving gear designers for different thick and thin teeth distributed round the perimieter of the cupling toothing can be 2 GB 2 15491 1A 2 met in a simple way by suitably modified tools.
The best way for manufacturing the other finished surfaces of the component part 7 are not explained here since they are not the subject of the invention.
Claims (2)
1. fine stamping of the crown bevels at the coupling rim; 11. trimming of the outer diameter of the coupling rim; Ill. bending of the coupling rim conically forward, opposite to the cutting direction into an angle corresponding to the desired rear cut and punch cutting of the coupling tooth system; and IV. straightening the toothed coupling rim again in its radial plane.
2. A method for manufacturing coupling teeth, substantially as herein described with reference to the accompanying drawings.
Printed in the United Kingdom for Her Majesty's Stationery Office. Dd 8818935. 1985, 4235. Published at The Patent Office, 25 Southampton Buildings, London, WC2A lAY. from which copies may be obtained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3408065A DE3408065C1 (en) | 1984-03-05 | 1984-03-05 | Process for the production of clutch gears |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8502612D0 GB8502612D0 (en) | 1985-03-06 |
| GB2154911A true GB2154911A (en) | 1985-09-18 |
| GB2154911B GB2154911B (en) | 1987-07-22 |
Family
ID=6229623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08502612A Expired GB2154911B (en) | 1984-03-05 | 1985-02-01 | Manufacturing coupling teeth |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4599775A (en) |
| DE (1) | DE3408065C1 (en) |
| FR (1) | FR2560540B1 (en) |
| GB (1) | GB2154911B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19820654B4 (en) * | 1998-05-08 | 2006-11-23 | Schaeffler Kg | Sliding sleeve of a synchronizing unit for manual transmission |
| DE10021088A1 (en) * | 2000-04-28 | 2001-11-08 | Johann Hay Gmbh & Co Kg Automo | Sliding sleeve for a manual transmission and method for its production |
| DE102012007955A1 (en) * | 2012-04-20 | 2013-10-24 | Hoerbiger Antriebstechnik Holding Gmbh | Clutch for gear wheel of transmission for motor car, has external teeth that are radially formed at inner side of conical friction surface and clutch gear |
| US10364850B2 (en) | 2012-10-23 | 2019-07-30 | Ford Global Technologies, Llc | Clutch mechanism |
| JP6279909B2 (en) * | 2013-03-22 | 2018-02-14 | 武蔵精密工業株式会社 | Forging molding method and forging die |
| DE102015213912B4 (en) * | 2015-07-23 | 2017-06-22 | Hirschvogel Umformtechnik Gmbh | Process for producing a gear and gear produced therewith |
| TW201825811A (en) * | 2017-01-03 | 2018-07-16 | 榮輪科技股份有限公司 | Manufacturing method of single chain wheel forming an intermediate tooth with a thickness for allowing an inner width of an inner panel of a chain to be smoothly fitted therein |
| SE541468C2 (en) * | 2017-11-24 | 2019-10-08 | Swedex Ab | Methods of producing saw blades |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR509047A (en) * | 1918-12-24 | 1920-10-29 | Otto Rudolf Opperman | Improvements in the manufacture of bevel gears or angle gears |
| FR622160A (en) * | 1926-09-24 | 1927-05-24 | Manufacturing process of freewheel nut and fixed gear of cycles, etc. | |
| US1847926A (en) * | 1929-02-28 | 1932-03-01 | Monroe Calculating Machine | Method of forming internal and crown gears |
| US2533648A (en) * | 1949-03-05 | 1950-12-12 | Joseph H Warburg | Circular saw making |
| FR1392631A (en) * | 1964-02-04 | 1965-03-19 | Ateliers Rene Halftermeyer Are | New process for manufacturing pinions, in particular for variable capacitor multipliers and products obtained |
| FR1597064A (en) * | 1968-01-08 | 1970-06-22 | ||
| DE2040413C3 (en) * | 1969-08-15 | 1974-04-11 | Toyota Jidosha Kogyo K.K., Toyota, Aichi (Japan) | Process for cold production of the spline of a gearbox for a motor vehicle |
| US3720989A (en) * | 1970-05-25 | 1973-03-20 | Renault | Gear cutting methods |
-
1984
- 1984-03-05 DE DE3408065A patent/DE3408065C1/en not_active Expired
-
1985
- 1985-01-10 US US06/690,277 patent/US4599775A/en not_active Expired - Fee Related
- 1985-02-01 GB GB08502612A patent/GB2154911B/en not_active Expired
- 1985-03-05 FR FR8503217A patent/FR2560540B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2560540A1 (en) | 1985-09-06 |
| DE3408065C1 (en) | 1985-06-20 |
| US4599775A (en) | 1986-07-15 |
| GB2154911B (en) | 1987-07-22 |
| GB8502612D0 (en) | 1985-03-06 |
| FR2560540B1 (en) | 1988-10-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20010201 |