CN1175112A - Projection welding process method for integrated claw pole and fan assembled by generator rotor - Google Patents

Projection welding process method for integrated claw pole and fan assembled by generator rotor Download PDF

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Publication number
CN1175112A
CN1175112A CN 97115654 CN97115654A CN1175112A CN 1175112 A CN1175112 A CN 1175112A CN 97115654 CN97115654 CN 97115654 CN 97115654 A CN97115654 A CN 97115654A CN 1175112 A CN1175112 A CN 1175112A
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CN
China
Prior art keywords
welding
fan
projection welding
claw pole
pawl
Prior art date
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Granted
Application number
CN 97115654
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Chinese (zh)
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CN1067814C (en
Inventor
孙启政
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GUIYANG ELECTRIC MOTORS FACTORY CHINA GUIHANG GROUP
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GUIYANG ELECTRIC MOTORS FACTORY CHINA GUIHANG GROUP
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Application filed by GUIYANG ELECTRIC MOTORS FACTORY CHINA GUIHANG GROUP filed Critical GUIYANG ELECTRIC MOTORS FACTORY CHINA GUIHANG GROUP
Priority to CN97115654A priority Critical patent/CN1067814C/en
Publication of CN1175112A publication Critical patent/CN1175112A/en
Application granted granted Critical
Publication of CN1067814C publication Critical patent/CN1067814C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A projection welding process for the integrated claw pole and fan used to assemble the rotor of electric generator features that multiple salient points are arranged on the end surface of claw pole or the contact surface between fan and claw pole, the thermoplastic skeleton coil is installed between two claw poles on shaft, two ring electrodes are respectively pressed on the front and back fans on the end surfaces of two claw poles, and the front and back fans and claw poles are welded together. Compared with the prior art, the invention solves the difficulty of welding thin and thick parts, and can firstly load plastic insulating materials and coils between the claw poles for welding, thereby reducing a large number of working procedures and processing time, saving materials and energy, having no indentation or burn on the welding surface, and being firm and reliable.

Description

The generator amature assembling solid jaw utmost point and fan projection welding
The present invention relates to a kind of salient point welding technique, the process that a plurality of small salient points of particularly a kind of thin plate and slab weld simultaneously.
To be connected with fan mainly be to adopt riveted joint or screw to fix to the pawl utmost point of generator amature in the prior art.This kind assembly method, relating to will be with many equipment, clamping apparatus and operating personnel, and the production cycle is long, simultaneously difficult its concentricity and the flatness of guaranteeing also.Generator fan when high speed rotating easily produces loosening, and the balance that influences its rotor increases the noise of generator.
The first phase in 1997 " aviation Precision Manufacturing Technology " publication " exploration of generator claw pole and fan spot welding " in the literary composition, is spoken of the pawl utmost point and the riveted joint or the affixed technology of screw that adopt spot welding replacement complexity being connected of fan.Spot welding is to put one by one to carry out.Although this kind method has solved the firm problem that fan is connected with the pawl utmost point, but difficult concentricity and the flatness that guarantees fan.And solder joint is big, and the power of consumption is big, also must carry out electroplating processes after being soldered and prevent corrosion.Carry out at last the assembling of whole rotor, easy damaged fan and coating when press-fiting, and the slip ring lead-out wire is connected connection and welding with lead-out wires of coil, can affect its quality.
The purpose of this invention is to provide a kind of reduction energy resource consumption, reduce manufacturing procedure, after generator claw pole, coil and axle assembled, forward and backward fan while and the pawl utmost point adopted the process of a projection welding nucleation of a plurality of salient points welding.
The objective of the invention is to realize by following scheme: even a plurality of small salient points of distribution making on 1 millimeter fan board and face that the pawl utmost point contact, or evenly distribute on greater than 20 millimeters the extreme face of thick pawl and make a plurality of small salient points, the effective depth that designs and produces salient point is the 0..2-0.45 millimeter.Welding electrode adopts and fan material has the copper-based material of potential difference to make.The welding electrode head is planar annular, guarantees the effective area that contacts with the fan board face.Generator shaft has press-fited the pawl utmost point, two pawl interpolars be equipped with coil and with the thermoplastics skeleton of pawl utmost point insulation or the skeleton of other insulating material, connect slip ring lead-out wire and lead-out wires of coil.Pawl utmost point both ends of the surface are laid forward and backward fan, and the relative position of the fan and the pawl utmost point is guaranteed by special fixture.Two planar annular electrodes are pressed on respectively on the forward and backward fan board, the planar annular electrode should with the salient point correspondence.Adopt the above welding machine of 80KVA during welding, welding pressure 0.4-0.6MPa, 0.6-1.2 second weld interval, more than the welding current 25000A, resistance welded is carried out in each salient point zone of energising heating simultaneously, forms solid solution weldering nuclear.
The present invention compared with prior art has the following advantages: the generator amature pawl utmost point, thermoplastic insulation framework, coil and axle can be joined by advanced luggage, again forward and backward fan being placed in two pawls extremely once is welded into simultaneously, reduced manufacturing procedure, easily operation, improve work efficiency, reduced energy resource consumption.Adopt simultaneously transient heating of multiple spot, salient point place nucleation is fast, plastic insulation skeleton and coil can pack into earlier pawl extremely in the middle of, again welding.Can guarantee the concentricity and the flatness of fan, the pawl utmost point and axle.
Be described in further detail below in conjunction with embodiment: make a plurality of salient points that are evenly distributed at the face that the flat board of fan contacts with the pawl utmost point.The effective depth of salient point is preferably 0.3 millimeter.The postwelding nucleation is qualified, and fan and the pawl utmost point are fitted tight.Before fan and the welding of the pawl utmost point, press-fit a pawl utmost point at the axle that presses slip ring, the centre bore of coil block plastic skeleton is contained on the pawl pole piece axle, press-fit then another pawl utmost point, the end face of two pawl pole piece axles is fitted, lead-out wires of coil with weld after the slip ring lead-out wire is connected.With the special tool anchor clamps forward and backward fan is fixed on the appropriate location of the two pawl utmost points, two planar annular electrodes are pressed in respectively on the forward and backward fan plane.Adopt the above welding machine of 80KVA, welding pressure is 0.4-0.6MPa, and 0.6-1.2 second weld interval is more than the welding current 25000A.Formation weldering nuclear is welded at a plurality of salient points of energising heating place simultaneously, and the front and back fan also is welded in the extreme face of pawl simultaneously, and planar annular electrode and fan contact-making surface do not have burn and obvious impression.
Use the generator amature of multiple projection welding process of the present invention, temperature be 90 ℃ ± 2 ℃ and rotating speed be 14000 rev/mins environment down do endurance test in 350 hours any problem does not appear.

Claims (3)

1, a kind of generator claw pole and fan projection welding, it is characterized in that: the making effective depth that evenly distributes at the fan thin plate or on pawl utmost point slab is a plurality of salient points of 0.2-0.45 millimeter, at two pawl interpolars thermoplastics skeleton and coil insulation are housed, the welding electrode head adopts the planar annular electrode, the fan that the planar annular electrode will be placed in pawl utmost point two ends compresses, the above welding machine of 80KVA is adopted in welding, welding pressure 0.4-0.6MPa, 0.6-1.2 second weld time, more than the welding current 25000A, each salient point place of pressurization energising adds thermal weld simultaneously, forms solid melting welding nuclear.
2, a kind of projection welding according to claim 1 is characterized in that: the salient point effective depth is 0.3 millimeter.
3, a kind of projection welding according to claim 1 is characterized in that: projection welding thin plate and slab ratio are 1: 20 or less than 1: 20.
CN97115654A 1997-08-21 1997-08-21 Projection welding process method for integrated claw pole and fan assembled by generator rotor Expired - Fee Related CN1067814C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN97115654A CN1067814C (en) 1997-08-21 1997-08-21 Projection welding process method for integrated claw pole and fan assembled by generator rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN97115654A CN1067814C (en) 1997-08-21 1997-08-21 Projection welding process method for integrated claw pole and fan assembled by generator rotor

Publications (2)

Publication Number Publication Date
CN1175112A true CN1175112A (en) 1998-03-04
CN1067814C CN1067814C (en) 2001-06-27

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CN97115654A Expired - Fee Related CN1067814C (en) 1997-08-21 1997-08-21 Projection welding process method for integrated claw pole and fan assembled by generator rotor

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103659121A (en) * 2013-12-13 2014-03-26 株洲湘火炬火花塞有限责任公司 Welding fixture enabling automotive generator cooling fan blades to be welded to rotor
CN104690412A (en) * 2013-12-06 2015-06-10 浙江金海环境技术股份有限公司 Ultrasonic welding equipment for fans, as well as usage method and application thereof
CN108448836A (en) * 2018-04-19 2018-08-24 江苏江南电机有限公司 A kind of automobile generator rotor assembly technology
CN108599047A (en) * 2018-07-23 2018-09-28 江苏万奇电器集团有限公司 A kind of corrugation pallet crane span structure connecting projection welding using tooth form multipole point T-type
CN108666944A (en) * 2018-07-23 2018-10-16 江苏万奇电器集团有限公司 A kind of tooth form multipole point corrugation pallet crane span structure bottom plate for projection welding
CN108711795A (en) * 2018-07-23 2018-10-26 江苏万奇电器集团有限公司 A kind of cable ladder connecting projection welding using multipole point T-type
CN108736399A (en) * 2018-07-23 2018-11-02 江苏万奇电器集团有限公司 A kind of salient point cable ladder side plate for multipole point projection welding
CN110212713A (en) * 2019-07-04 2019-09-06 无锡益盛汽车电机有限公司 A kind of motor production technology

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174559A (en) * 1978-02-09 1979-11-20 J.J. & M. Fastening method
FR2586145B1 (en) * 1985-08-09 1988-09-23 Ducellier & Cie AC GENERATOR, PARTICULARLY FOR MOTOR VEHICLES
US5329199A (en) * 1992-11-23 1994-07-12 Ford Motor Company Rotor assembly with molded fans and method for making the same
FR2741912B1 (en) * 1995-12-05 1998-02-20 Valeo Equip Electr Moteur IMPROVED FAN FOR INTERNAL VENTILATION ALTERNATOR, PARTICULARLY FOR MOTOR VEHICLE, AND ALTERNATOR INCORPORATING THE SAME

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104690412A (en) * 2013-12-06 2015-06-10 浙江金海环境技术股份有限公司 Ultrasonic welding equipment for fans, as well as usage method and application thereof
CN103659121A (en) * 2013-12-13 2014-03-26 株洲湘火炬火花塞有限责任公司 Welding fixture enabling automotive generator cooling fan blades to be welded to rotor
CN103659121B (en) * 2013-12-13 2015-04-22 株洲湘火炬火花塞有限责任公司 Welding fixture enabling automotive generator cooling fan blades to be welded to rotor
CN108448836A (en) * 2018-04-19 2018-08-24 江苏江南电机有限公司 A kind of automobile generator rotor assembly technology
CN108448836B (en) * 2018-04-19 2019-12-06 江苏江南电机有限公司 Automobile generator rotor assembling process
CN108599047A (en) * 2018-07-23 2018-09-28 江苏万奇电器集团有限公司 A kind of corrugation pallet crane span structure connecting projection welding using tooth form multipole point T-type
CN108666944A (en) * 2018-07-23 2018-10-16 江苏万奇电器集团有限公司 A kind of tooth form multipole point corrugation pallet crane span structure bottom plate for projection welding
CN108711795A (en) * 2018-07-23 2018-10-26 江苏万奇电器集团有限公司 A kind of cable ladder connecting projection welding using multipole point T-type
CN108736399A (en) * 2018-07-23 2018-11-02 江苏万奇电器集团有限公司 A kind of salient point cable ladder side plate for multipole point projection welding
CN110212713A (en) * 2019-07-04 2019-09-06 无锡益盛汽车电机有限公司 A kind of motor production technology
CN110212713B (en) * 2019-07-04 2020-10-09 无锡益盛汽车电机有限公司 Motor production process

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