Spot welding apparatus for welding end conductors in cylindrical electrical machine elements
阅读：75发布：2022-04-23
专利汇可以提供Spot welding apparatus for welding end conductors in cylindrical electrical machine elements专利检索，专利查询，专利分析的服务。并且A spot welding apparatus connects the coil end strips to commutating bars of an armature. A mixture has a rotating base supporting the armature at the end opposite the commutator. An adjustable top support locates a spot welding torch in proper alignment to the bar and with a spring loaded ground slidably engaging the same bar. The torch includes a two percent thoriated tungsten electrode having a tapered or pencilled tip terminating in a blunt or flat end. A high frequency, constant potential D.C. power supply is connected to the torch and maintains power instantly available to the electrode and ground under the control of a timer. A helium shield arc is created. A position sensor carried by the top support has a pair of conductive plungers axially aligned with and slidably engaging with the commutator bars to produce an on-off control as the plungers pass over an insulator between the bars. The sensor is connected to actuate the timer which operates the power supply to strike an arc for a predetermined time. A plurality of radially distributed spot welds are provided on each bar by a series of traverses or passes about the commutator. The ends of the coils of a wound rotor may also be similarly joined by spot welds automatically created by the method and apparatus.，下面是Spot welding apparatus for welding end conductors in cylindrical electrical machine elements专利的具体信息内容。
1. In an apparatus for welding of coil lead means of an electric machine cylindrical element comprising a fixture means for supporting of an element with ends of the coil lead means in a predetermined planar relation, a non-consumable electrode arc spot welding torch means located adjacent the end of the element in spaced relation to said ends, means to establish relative movement between the element and the torch means, and control means to sequentially actuate said torch means in response to alignment of the torch means with the coil lead means to establish a welding arc between the torch and the aligned coil lead means.
2. The apparatus of claim 1 wherein said torch means includes a tungsten electrode, and means to supply a protective inert gas atmosphere about the end of the electrode.
3. The apparatus of claim 2 wherein said electrode is a two percent thoriated tungsten, and said gas is helium.
4. The apparatus of claim 1 wherein said electrode end is tapered to an essentially flat blunt end.
5. The apparatus of claim 1 wherein said torch means includes a tungsten electrode having a pencilled end terminating in a flat blunt end having a lateral diameter essentially within the range of 1/32 to 1/16 inches, and means to establish a helium protective atmosphere.
6. The apparatus of claim 1 having a sliding ground contact means for said torch means, and means to mount said contact means in sliding contact with the lead means.
7. The apparatus of claim 6 wherein said contact means is maintained in engagement with coil means being spot welded and immediately adjacent to the end.
8. The apparatus of claim 1 having a timing means connected to control the on-time of said torch means to create a corresponding arc, means to continuously rotate said cylindrical element, and sensing means responsive to alignment with each of said end connections to actuate said timing means and energize said torch means.
9. The apparatus of claim 8 wherein said timing means included a control relay, a power supply for operating of said control relay and having said sensing elements connected in series with said power supply and said control relay.
10. The apparatus of claim 8 wherein said torch means includes a 2 per cent thoriated tungsten electrode terminating in a blunt, essentially flat end of diameter between 1/32 and 1/16 inches and having means to supply a protecting helium gas about the end and adjacent arc, said fixture includes a rotating base support unit having means to support the element projecting axially upwardly to locate said connection legs in a common horizontal plane, a top support unit including horizontal and vertical guide means engaging the top end and adjacent side portion of the element, said guide means being adjuStably mounted to accommodate varying size elements, means connected to said top support unit for adjustably mounting of said torch means relative to said coplanar end connection.
11. The apparatus of claim 10 including a ground contact located in alignment with said torch means and slideably engaging the periphery of the coil lead means immediately adjacent to the torch means.
12. The apparatus of claim 8 including a DC welding power supply having a constant output instantly applied to the torch in response to activation of the timing means and maintained for a selected time.
13. An apparatus for welding of a plurality of circumferentially spaced coil connections in an essentially common radial plane, comprising a torch means mounted to traverse said radial plane, said torch means including a two percent thoriated tungsten electrode and gas shielding means, a constant potential welding supply connected to energize said electrode and having a source of helium shielding gas, said welding supply being continuously energized to establish a welding potential at an output means, a timing means operable to initially complete the connection of the output means to the torch means, and conductive sensing means mounted to traverse said connecting means and slideably engaging said connection means to produce control signals in response to the sequential alignment with each coil connection, and means connecting the sensing means to actuate the timing means.
14. The apparatus of claim 13 wherein said welding supply is a high frequency direct current supply, and said timing means includes a power supply separate from said welding supply.
15. In an apparatus for welding of coil lead means to copper commutating bars of a dynamoelectric machine element, comprising a fixture means for supporting of a rotor element, a non-consumable electrode arc spot welding torch means, means to establish relative movement between the rotor element and the torch means, and control means to sequentially actuate said torch means in response to alignment of the torch means with a commutating bar to establish a welding arc between the torch and the aligned commutating bar.
16. The apparatus of claim 15 wherein said commutating bars are individual, L-shaped members having a short radial connection leg aligned with an axially extended rotor conductor, said leg having the rotor conductors exposed on the axial end face of the connecting legs, a support unit including horizontal and vertical guide means engaging the end and adjacent side portion of the L-shaped members, means connected to said support unit for adjustably mounting of said torch means relative to said coplanar connection legs, a ground contact means resiliently engaging the outer circumference of the connection leg, and a pair of sensing elements mounted to resiliently engage a single commutator bar and having a width no greater than the interbar insulator to open the circuit therebetween as each interbar insulator passes the sensing elements, and a timing means having an input means connected to said sensing means and connected to control the on-time of said torch to create a corresponding arc.
17. The apparatus of claim 16 wherein said torch includes a tungsten electrode and means to supply a protective helium gas atmosphere about the end of the electrode.
18. The apparatus of claim 16 wherein said torch means has an electrode, said electrode end being tapered to an essentially flat blunt end.
19. The apparatus of claim 16 wherein said torch includes a tungsten electrode having a pencilled end terminating in a flat blunt end having a lateral diameter essentially within the range of 1/32 to 1/16 inches.
20. The apparatus of claim 16 wherein said timing means includes a control relay, a power supply for operating of said control relay and having said sensing elements connected in series with said power supply and said control relay.
21. The apparatus of claim 16 wherein said sensing elements are spring-loaded conductive plungers mounted in vertical alignment, attachment means for said plungers connected to said support means and locating said plungers in alignment with a commutating bar in synchronism with location of the torch means with a commutating bar.
22. The apparatus of claim 16 wherein said commutating bars have split connection legs and said lead means are strips extended within said bars and exposed in the outer surface of said connection portions, and said spot welds being formed on each outer surface of each of said bars integrally connecting each rotor conductor to the corresponding commutating bars.
23. The method of spot welding of the end conductors of the coils in a slotted cylindrical rotor to a commutator having circumferentially spaced commutator bars separated by insulating members, comprising continuously moving a torch means relative to the commutating bars in spaced welding relation to each of said bars, simultaneously moving a conductive sensing means around said commutator in operative sensing relation to said bars, and activating said torch means for a predetermined time in response to the sensing of each commutator bar.
24. The method of claim 23 including the step of continuously energizing a welding supply to establish a welding potential at an output means and activating said torch means by completing a connection of the supply to the torch means.
25. The method of claim 23 including the steps of establishing a plurality of radially spaced welded connections to each of said commutator bars by sequentially circumferentially traversing of said bars at least twice and establishing a selected spot weld connection during each traverse.
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种核辐射屏蔽结构及其制造方法 | 2020-05-11 | 405 |
| 一种同时检测待测溶液中汞离子和铅离子的含量的方法 | 2020-05-12 | 676 |
| 一种耐腐蚀核屏蔽材料的制备方法 | 2020-05-13 | 6 |
| 适用于核电站取样样品转运的屏蔽装置 | 2020-05-08 | 449 |
| 一种光电复合的海底电力电缆 | 2020-05-08 | 960 |
| 离轴单反式伽马测量系统 | 2020-05-11 | 50 |
| 一种小儿CT头部固定装置 | 2020-05-14 | 785 |
| 一种轮椅车速度监控测试系统 | 2020-05-13 | 442 |
| 一种中子束发射装置 | 2020-05-13 | 992 |
| 一种可对快中子束径调整的中子准直装置 | 2020-05-13 | 226 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
分析报告
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
QQ群二维码
意见反馈
意见反馈