GB1468113A - Production of comutators for rotary electrical machines - Google Patents
Production of comutators for rotary electrical machinesInfo
- Publication number
- GB1468113A GB1468113A GB3536275A GB3536275A GB1468113A GB 1468113 A GB1468113 A GB 1468113A GB 3536275 A GB3536275 A GB 3536275A GB 3536275 A GB3536275 A GB 3536275A GB 1468113 A GB1468113 A GB 1468113A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ribs
- ridges
- cup
- ram
- insulating material
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/06—Manufacture of commutators
- H01R43/08—Manufacture of commutators in which segments are not separated until after assembly
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
- Forging (AREA)
Abstract
1468113 Making commutators; forging; extruding KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE AG 27 Aug 1975 [27 Sept 1974] 35362/75 Headings B3A B3H and B3P A commutator is provided by extruding a cup with inwardly projecting ribs from a copper or copper alloy blank, punching out the starshaped portion of the bottom which is defined by the ribs, reducing the outside diameter of the product by extrusion while reducing the spacing between the ribs, filling the recesses between the ribs with insulating material, and externally machining the result until the insulating material is exposed. Apparatus for carrying out the first three stages includes a single press having ribbed rams or punches and manual or automatic transfer of the blanks between the stages. Fig. 1a shows on the left a blank 1 located in die 4 having an ejector 5. On the right, ram 6 having ridges 7 is shown at the end of its stroke having formed a cup 2 having recesses 8 between ribs 3. The bottom of the cup is then punched out by a punch having ridges like those of ram 6, so that the ribs 3 are not reformed. The product 12, Fig. 3a is then extruded through die 13 having reduced portion 15, by tool 14 having ridges 7 of less thickness than those of the ram and punch of preceding stages. At the same time, projections 16 on the die form flutes 17, and the internal diameter is enlarged slightly, whereby the rib formations of Fig. 3c result. A plurality of the resulting tubes are then mounted on a shaft, the recesses filled with insulating material, and the tubes are externally machined to expose the material. The shaft may then be removed, or divided to provide a shaft for each commutator.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742446204 DE2446204A1 (en) | 1974-09-27 | 1974-09-27 | PROCESS FOR MANUFACTURING COMMUTATORS FOR ROTATING ELECTRICAL MACHINERY |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1468113A true GB1468113A (en) | 1977-03-23 |
Family
ID=5926915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3536275A Expired GB1468113A (en) | 1974-09-27 | 1975-08-27 | Production of comutators for rotary electrical machines |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH580873A5 (en) |
DE (1) | DE2446204A1 (en) |
FR (1) | FR2286525A1 (en) |
GB (1) | GB1468113A (en) |
IT (1) | IT1041083B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109273957A (en) * | 2018-10-16 | 2019-01-25 | 苏州昀冢电子科技有限公司 | Terminal formation system and terminal preparation process |
CN110605320A (en) * | 2019-09-17 | 2019-12-24 | 瑞安市天禄精密机械有限公司 | Automobile commutator stamping equipment |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3530652A1 (en) * | 1985-08-28 | 1987-03-12 | Bosch Gmbh Robert | COMMUTATOR FOR ELECTRICAL MACHINES |
DE3823844A1 (en) * | 1988-07-14 | 1990-01-18 | Kautt & Bux Kg | Commutator for electrical machines, and a method for its production |
-
1974
- 1974-09-27 DE DE19742446204 patent/DE2446204A1/en active Pending
-
1975
- 1975-06-26 CH CH829975A patent/CH580873A5/xx not_active IP Right Cessation
- 1975-07-30 IT IT5073675A patent/IT1041083B/en active
- 1975-07-31 FR FR7523996A patent/FR2286525A1/en not_active Withdrawn
- 1975-08-27 GB GB3536275A patent/GB1468113A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109273957A (en) * | 2018-10-16 | 2019-01-25 | 苏州昀冢电子科技有限公司 | Terminal formation system and terminal preparation process |
CN110605320A (en) * | 2019-09-17 | 2019-12-24 | 瑞安市天禄精密机械有限公司 | Automobile commutator stamping equipment |
CN110605320B (en) * | 2019-09-17 | 2024-03-22 | 瑞安市天禄精密机械有限公司 | Stamping equipment for automobile commutator |
Also Published As
Publication number | Publication date |
---|---|
DE2446204A1 (en) | 1976-04-08 |
FR2286525A1 (en) | 1976-04-23 |
CH580873A5 (en) | 1976-10-15 |
IT1041083B (en) | 1980-01-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1308555A (en) | Commutators for dynamo-electric machines | |
GB1468113A (en) | Production of comutators for rotary electrical machines | |
CN206632212U (en) | A kind of continuous mould for processing micro-wave oven top casing | |
GB1323370A (en) | Method of manufacturing an article having a cylindrical peripheral wall and integral thinwalled portions inwardly thereof | |
JPS5650743A (en) | Method and device of forming shaft with center hole | |
US3895422A (en) | Screw jack pinion gear and method of making same | |
DE3066742D1 (en) | Manufacturing commutator shells for rotating electric machines | |
GB1170937A (en) | Process for Manufacturing Ball Pen Points by Extrusion and Drawing Starting from a Wire. | |
JPS5678357A (en) | Manufacture of yoke for rotary electric machine | |
GB748893A (en) | Improvements relating to commutators for dynamo-electric machines | |
JPS5714440A (en) | Method and device for production of product having tooth profile | |
JPH0639480A (en) | Producing device of forging product having tooth form | |
CN215544207U (en) | Simple punch forming die | |
GB1185534A (en) | A Method of Forming Receptacles | |
CN211276124U (en) | Punching die for inner gear disc of flywheel | |
JPS5725224A (en) | Production of watch parts | |
CN214235998U (en) | Fastener demoulding mechanism for vehicle | |
JPS55161541A (en) | Closed rough forging method of crankshaft | |
JP3128258B2 (en) | Method for manufacturing spark plug metal shell | |
GB1161813A (en) | Machine for Very Rapidly Pressing Ball Pen Points and Other Articles Starting from a Metallic Strip or Wire. | |
JPS5725225A (en) | Production of watch parts | |
CN201503773U (en) | Continuous drawing die for punching capacitor aluminium shell by using belt material | |
JPS54112774A (en) | Production of exterior lace element of rotary bearing | |
JPH0810435Y2 (en) | Mold device for molding gears | |
US3190150A (en) | Method of making key blanks |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |