CN104353936B - A kind of rotational automatic welding system and welding method of motor stator laminated - Google Patents

A kind of rotational automatic welding system and welding method of motor stator laminated Download PDF

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Publication number
CN104353936B
CN104353936B CN201410475974.5A CN201410475974A CN104353936B CN 104353936 B CN104353936 B CN 104353936B CN 201410475974 A CN201410475974 A CN 201410475974A CN 104353936 B CN104353936 B CN 104353936B
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China
Prior art keywords
stator
welding
lasmination
module
central control
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CN201410475974.5A
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CN104353936A (en
Inventor
王洪泽
张延松
来新民
李淑慧
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00Welding or cutting by means of a plasma
    • B23K10/02Plasma welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/16Arc welding or cutting making use of shielding gas
    • B23K9/167Arc welding or cutting making use of shielding gas and of a non-consumable electrode

Abstract

The present invention relates to a kind of rotational automatic welding system and welding method of motor stator laminated, wherein, welding system comprises carrying and rotary module, compression module, welding module and central control module, carrying and rotary module comprise electric motor units, the first shaft coupling, stator load bearing unit and guide pin, stator load bearing unit, the first shaft coupling, electric motor units connect successively, and guide pin inserts in stator lasmination to be welded; Compression module comprises the stator hold-down mechanism, the second shaft coupling and the power unit that connect successively, stator hold-down mechanism is provided with pressure sensor and displacement transducer, power unit, pressure sensor and displacement transducer are connected with central control module respectively, and stator hold-down mechanism is pressed on stator lasmination to be welded; Welding module comprises two welding units, is symmetricly set on carrying and rotary module both sides. The advantages such as compared with prior art, it is low that the present invention has equipment cost, and the stator quality that welding obtains is high, and compatibility is good.

Description

A kind of rotational automatic welding system and welding method of motor stator laminated
Technical field
The present invention relates to motor stator welding technology field, especially relate to a kind of rotation of motor stator laminated certainlyMoving welding system and welding method.
Background technology
Constantly bringing forth new ideas and breaking through, oil price vibration and increasingly serious energy-saving and emission-reduction pressure, new forms of energy vapour along with technologyCar is more and more subject to everybody attention. Technically, Ge great motor corporation carries out new-energy automobile core one after anotherTechnology public relations research and development, the industrialization process of promotion new-energy automobile. Drive motors is the core component of new-energy automobile.
New-energy automobile has high moment of torsion, high constant power bracket, high-energy must reach the slow-speed of revolution with drive motors timeDensity, the technical indicators such as high efficiency. Drive motors is mainly made up of stator, rotor, annex three parts. StatorMainly be made up of stator core and coil, wherein the material of stator core is silicon steel sheet. Rotor, by permanent-magnet material, turnsSub-iron core, the rotor cage composition of secured core, the material of rotor core is also silicon steel sheet. Annex comprises cooling system,Power drive system, and position sensor. The manufacture process of stator core comprises silicon steel sheet stamping-out, welds determining of closed assemblySub-sheet, inserts coil, and coil is pressed into the medium operation of motor frame.
In motor manufacture process, stator lasmination connected mode has mechanical type to connect, and welding is gluing etc. Machinery connectsConnect and comprise that buckle piece type connects, the modes such as riveted joint and bolt connection, joint is prone to loosening after using for a long time, produce largeDistortion, when machine operation, noise increases, and heat is high, and the efficiency of motor is low. Adopt adhesive means connecting stator sheet,Bonding strength is high, and being connected between sheet and sheet is even; Magnetic circuit on stator piece does not affect, and stator iron loss is low. ButBe, gluing mode has proposed very high requirement to the performance of adhesive glue, requires glue-line to have resistance to elevated temperatures,Anti-fatigue performance and longer working life, this causes the development difficulty of glue-line large, and cost is high.
Adopting solder technology connecting stator sheet is a kind of effectively method of attachment. With respect to gluing, solder technology costLow, postwelding steady quality, has the longer life-span; Connect with respect to mechanical type, solder technology has less changeShape, lower iron loss, can obtain excellent electromagnetic performance.
Stator lasmination is welded and fixed through too much bar weld seam, forms stator. The technique of traditional many weld seams of welding has twoClass. The first kind adopts single many weld seams of welding gun welding, after the welding that completes one weld seam, adopts manual sideFormula, by a specific angle of welding gun rotation, welds next weld seam, until realize the welding of many weld seams. ByIn once only welding a weld seam, asymmetric heat input easily causes larger welding deformation, poor welding quality;Meanwhile, manual welding efficiency is low, and quality is unstable, is difficult to meet the requirement that factory's high-performance is produced in enormous quantities. TheTwo classes adopt many welding gun welding motor stator, and the number of welding gun is identical with weld seam number, welds on stator simultaneouslyMany weld seams, this welding manner is many welding gun owing to having adopted, and equipment cost is high; And the weld seam of motor statorNumber must be consistent with welding gun number, in the time that the weld seam number of stator changes, need to carry out again equipmentDesign, has further increased equipment cost.
Summary of the invention
The present invention provides a kind of low cost, high-quality, favorable compatibility in order to overcome above-mentioned prior art defectThe rotational automatic welding system of motor stator laminated and welding method.
Object of the present invention can be achieved through the following technical solutions:
A rotational automatic welding system for motor stator laminated, comprises carrying and rotary module, compression module, welderingConnection module and central control module (8), described central control module (8) connect respectively carrying and rotary module,Compression module, welding module, described carrying and rotary module comprise electric motor units (1), the first shaft coupling (2),Stator load bearing unit (3) and guide pin (19), described stator load bearing unit (3), the first shaft coupling (2), motorUnit (1) connects successively, and described electric motor units (1) is connected with central control module (8), described guide pin (19)Insert in stator lasmination teeth groove to be welded, for realizing the circumferential location to stator lasmination, described stator lasmination is putPut on stator load bearing unit (3);
Described compression module comprises the stator hold-down mechanism (5), the second shaft coupling (6) and the power list that connect successivelyUnit (7), described stator hold-down mechanism (5) is provided with pressure sensor and displacement transducer, described power unit(7), pressure sensor is connected with central control module (8) respectively with displacement transducer, described stator compacting machineStructure (5) is pressed and is put on stator lasmination to be welded;
Described welding module comprises two welding units, is symmetricly set on carrying and rotary module both sides.
Described stator load bearing unit (3) comprises the loading plate (12) for placing stator lasmination, this loading plate (12)One side is provided with for realizing the locating shaft (11) to stator lasmination axial location, and another side is provided with and electric motor units (1)The first connecting axle (13) connecting.
Described electric motor units (1) is servomotor or is combined by common electric machine and rotary encoder.
Described guide pin (19) is the metal bar matching with the stator tooth groove shape of stator piece.
Described stator hold-down mechanism (5) comprises the second connecting axle (14), the upper plate (15) connecting successively and pressesTight cylinder (16), described the second connecting axle (14) is connected with power unit (7), and described pressure sensor is located atOn the end face that compression cylinder (16) contacts with stator lasmination, described displacement transducer is located at and compresses on cylinder (16).
Described power unit (7) comprises hydraulic cylinder or electric cylinder.
Described welding unit comprises the welding machine (9) and the welding gun (10) that are connected, described welding machine (9) and central authorities' controlMolding piece (8) connects.
Described welding machine (9) comprises laser welder, plasma arc welder or tig arc welding machine.
A kind of rotational automatic welding method of motor stator laminated comprises the following steps:
A) setting of initial parameter, described initial parameter comprise speed of welding, welding current, welding pressure assembling force,Weld seam number and stator lasmination height, and according to the anglec of rotation of the weld seam number calculating electric motor units of setting;
B) the spacing clamping of stator lasmination: according to welding initial parameter, by multiple stator piece closed assemblies, pass through guide pinRealize the circumferential location to stator piece, and the stator lasmination after closed assembly is inserted in the locating shaft on loading plate, realizeTo the axial location of stator lasmination;
C) press-fiting of stator lasmination: central control module control power unit starts, drives under stator hold-down mechanismOK, stator lasmination is applied to thrust, pressure sensor detects described thrust and is transferred to central control module,Central control module is adjusted the control to power unit in real time according to the thrust of the welding pressure assembling force of setting and feedbackSignal, pressure control procedure can continue to carry out in the welding stage, ensured that in welding process, pressure assembling force is constant, eliminated welderingConnect the impact of internal stress;
D) the height control of stator lasmination: displacement transducer detects the lower line displacement of described stator hold-down mechanism and passesBe defeated by central control module, central control module is according to the stator lasmination height of setting and the descending adjustment of displacement of feedbackThe sheet number of stator piece;
E) welding of symmetrical weld seam on stator lasmination: central control module control welding machine starts, and two are arranged symmetrically withWelding gun synchronizing moving, weld symmetrical weld seam from top to bottom, after completing, welding machine cuts out, welding gun backhaul, stator pressTight mechanism unclamps;
F) welding of many weld seams on stator lasmination: the anglec of rotation control that central control module a) calculates according to stepElectric motor units processed drives stator lasmination rotation, and performs step c) successively, e), f), until complete all welderingsThe welding of seam.
Described steps d) in, adjust the sheet number of stator piece and be specially: according to the lower line displacement of stator hold-down mechanism withAnd obtain the initial distance of stator hold-down mechanism and loading plate upper surface, calculate current stator lasmination height, according to working asThe comparative result of the stator lasmination height of front stator record stacking height and setting, makes by increasing or reduce stator piece numberProper front stator record stacking height is consistent with setting stator lasmination height.
Compared with prior art, the present invention has the following advantages:
1, the present invention adopts the welding module that is made up of two welding guns that are arranged symmetrically with and the group of carrying and rotary moduleClose, realize the welding to many weld seams stator. With respect to the mode of single welding gun manual welding, symmetrical heat input energyReduce the distortion of the rear stator of welding. The mode of simultaneously welding with respect to many welding guns, required welding gun decreased number, equipmentCost; Meanwhile, native system can be carried out welding for the stator of different weld seam numbers, and the compatible of equipment obtainsTo significantly improving.
2, the present invention, by pressure sensor is set, carries out essence to the pressure assembling force putting in welding process on statorReally control, reduce the internal stress in the rear stator lasmination of welding, thereby reduce because internal stress increases the stator causingMagnetic property is deteriorated, promotes the electromagnetic performance after welding.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of stator load bearing unit of the present invention;
Fig. 3 is the structural representation of compression module of the present invention;
Fig. 4 is the mounting means schematic diagram of guide pin of the present invention in stator piece;
Fig. 5 is the schematic flow sheet of welding process of the present invention.
In figure, 1, electric motor units, 2, the first shaft coupling, 3, stator load bearing unit, 4, stator lasmination, 5,Stator hold-down mechanism, 6, the second shaft coupling, 7, power unit, 8, central control module, 9, welding machine, 10,Welding gun, 11, locating shaft, 12, loading plate, 13, the first connecting axle, 14, the second connecting axle, 15, upper plate,16, compress cylinder, 17, stator piece, 18, stator teeth groove, 19, guide pin.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail. The present embodiment is with the technology of the present invention sideCase is that prerequisite is implemented, and has provided detailed embodiment and concrete operating process, but protection model of the present inventionEnclose and be not limited to following embodiment.
As shown in Figure 1, a kind of rotational automatic welding system of motor stator laminated, this system adopts two symmetrical clothThe welding gun of putting welds the symmetrical weld seam of twice simultaneously on stator lasmination, drives turning of stator lasmination by electric motor unitsMoving, realization is welded many weld seams with two welding guns on stator. This system comprises carrying and rotary module, pressure diePiece, welding module and central control module 8, central control module 8 connects respectively carrying and rotary module, compressionModule, welding module.
The major function of carrying and rotary module is carrying stator lasmination, and realizes drive stator lasmination and loading plate thereofRotation, comprise electric motor units 1, the first shaft coupling 2, stator load bearing unit 3 and guide pin 19, stator carrying is singleUnit 3, the first shaft coupling 2, electric motor units 1 connect successively, and electric motor units 1 is connected with central control module 8,Guide pin 19 inserts in the teeth groove of stator lasmination to be welded 4, for realizing the circumferential location to stator lasmination, fixedSub-lamination is placed on stator load bearing unit 3. Electric motor units 1 can be servomotor, also can and revolve by common electric machineRotatable encoder combines. As shown in Figure 2, stator load bearing unit 3 comprises the carrying for placing stator lasminationPlate 12, these loading plate 12 one sides are provided with for realizing the locating shaft 11 to stator lasmination axial location, and another side is establishedThere is the first connecting axle 13 being connected with electric motor units 1. Guide pin 19 is for to match with the stator tooth groove shape of stator pieceMetal bar, its major function is to carry out circumferentially spacing to the good stator piece of closed assembly. The quantity of guide pin is by stator teeth grooveShape and quantity determine.
The major function of compression module is to compress stator lasmination, ensures that the stator lasmination having welded has higher laminationCoefficient, comprises the stator hold-down mechanism 5, the second shaft coupling 6 and the power unit 7 that connect successively, stator compacting machineStructure 5 is provided with pressure sensor and displacement transducer, and power unit 7, pressure sensor and displacement transducer are respectivelyBe connected with central control module 8, stator hold-down mechanism 5 is pressed on stator lasmination to be welded 4. As Fig. 3Shown in, stator hold-down mechanism 5 comprises the second connecting axle 14, upper plate 15 and the compression cylinder 16 that connect successively,The second connecting axle 14 is connected with power unit 7, and pressure sensor is located at and compresses cylinder 16 and contact with stator lasminationOn end face, displacement transducer is located at and compresses on cylinder 16. Power unit 7 comprises hydraulic cylinder or electric cylinder, mainFunction is to drive hold-down mechanism move up and down and the thrust to stator lasmination is provided.
Welding module comprises two welding units, is symmetricly set on carrying and rotary module both sides. Each welding unitInclude the welding machine 9 and the welding gun 10 that are connected by holding wire, welding machine 9 is connected with central control module 8, welderingMachine 9 is controlled movement and the welding job of welding gun 10. Welding machine 9 comprises laser welder, plasma arc welder or TIGWelding machines etc. can be used for the welding machine of seam weldering.
Central control module 8 is mainly made up of core processing unit and holding wire, and core processing unit passes through holding wireConnect respectively carrying and rotary module, compression module and welding module.
The motor stator size of welding in this example is as follows: stator outer diameter 200mm, and diameter of stator bore 100mm,Axial length 70mm, stator teeth groove number is 24, need to weld eight weld seams. The material of stator piece is thickDegree is the thick non-oriented electrical steel sheet of 0.30mm. Adopt two plasma (welding) torches that are arranged symmetrically with to weld fixedSon. As shown in Fig. 1~Fig. 5, while adopting the rotation automatic welding device of above-mentioned motor stator laminated to weld,Mainly comprise following processing step:
A, startup welding system, make system initialization. Central control module 8 sets speed of welding, welding electricityStream, nozzle are from distance, plasma (orifice) gas and flow, welding pressure assembling force, weld seam number, the stator lasmination height of workpieceEtc. parameter, and according to the anglec of rotation of the weld seam number calculating electric motor units of setting.
B, according to default stator lasmination height and the thickness of each stator piece, estimation stator piece number. Choose meterThe number of the stator piece obtaining, closed assembly stator piece, inserts the stator of stator piece 17 with the guide pin 19 of someIn teeth groove 18, carry out circumferentially spacing, as shown in Figure 4.
C, the good stator piece of closed assembly is enclosed within on the locating shaft 11 of stator bearing system, realizes the axle to stator lasminationTo location.
D, central control module 8 send movement instruction by holding wire to power unit 7, and power unit 7 drivesStator hold-down mechanism 5 down moves, and compresses stator lasmination, realizes the axial limiting to lamination, proceeds to subsequent processing.
E, pressure sensor detect the thrust that stator hold-down mechanism 5 applies stator lasmination, and force value is logicalCross holding wire and be transferred to central control module 8, reached when central control module 8 detects force value the weldering of settingWhile connecing pressure assembling force, control power unit 7 and keep current pressure value, proceed to subsequent processing. Pressure control procedure is in welderingThe stage of connecing can continue to carry out, and ensures that in welding process, pressure assembling force is constant, eliminates the impact of welding interior stress.
F, displacement transducer detect the descending displacement of stator hold-down mechanism 5, and displacement data is transmitted by holding wireTo central control module 8, central control module 8 is according to the lower line displacement of stator hold-down mechanism and obtain stator pressureThe initial distance of tight mechanism and loading plate upper surface, calculates current stator lasmination height, and according to current stator lasminationDeviation between the stator lasmination height of height and setting, the sheet number of adjustment stator lasmination, if deviation is in allowed bandWithin, enter operation g: if deviation has exceeded allowed band, central control module 8 is given by holding wirePower unit 7 sends movement instruction, and power unit drives the stator hold-down mechanism 5 of stator lasmination up to move, withTime, after stator lasmination quantity is finely tuned, return to operation d.
G, central control module 8 send work order by holding wire to welding machine 9, and welding machine starts, and is arranged symmetrically withTwo welding guns according to default welding machine speed, welding current, nozzle distance, plasma (orifice) gas and the stream thereof from workpieceThe technological parameters such as amount, motion from top to bottom, realizes the welding to stator lasmination 4; In the time that welding gun is covered default stroke,Plasma arc gas is closed, welding gun stop motion; Subsequently, under the situation of closing at welding machine, welding gun is transported from the bottom upMoving, to get back to after initial position, welding gun stop motion, proceeds to subsequent processing.
H, central control module 8 send movement instruction by holding wire to power unit 7, and power unit drives fixedThe hold-down mechanism 5 of sub-lamination is up, unclamps stator lasmination; After up certain distance, power unit stop motion,Proceed to subsequent processing.
I, central control module 8 send motion control by holding wire to electric motor units 1 according to the anglec of rotation of calculatingInstruction processed and corner information.
J, electric motor units 1, according to the command information receiving, drive stator load bearing unit 3 and stator lasmination 4 to turnMoving corresponding angle, prepares for welding next weld seam; Complete after rotation, proceed to next process.
K, that central control module 8 is controlled power unit 7 is descending, drives the stator hold-down mechanism 5 of stator lasmination pastLower motion, compresses stator lasmination 4, and lower line displacement and the thrust of power unit is detected; Instantly line positionMove and thrust all reaches after predetermined value, central control module 8 sends instruction to welder system, controls two welding gunsMotion from top to bottom, the weld seam being arranged symmetrically with that welding makes new advances on stator lasmination; Welding gun moves to stator lasminationBehind lower end, welding machine cuts out, and welding gun is got back to the initial position before welding; Power unit up moves, and unclamps stator foldedSheet; Now, central control module 8 is according to initial setting, if still need to weld on stator lasmination,Send motion control instruction to electric motor units, enter operation i; If completed the welding of all weld seams, establishedStandby decommissioning.

Claims (9)

1. a rotational automatic welding system for motor stator laminated, comprise carrying and rotary module, compression module,Welding module and central control module (8), described central control module (8) connect respectively carrying and rotary module,Compression module, welding module, is characterized in that:
Described carrying and rotary module comprise electric motor units (1), the first shaft coupling (2), stator load bearing unit (3)And guide pin (19), described stator load bearing unit (3), the first shaft coupling (2), electric motor units (1) connect successively,Described electric motor units (1) is connected with central control module (8), and described guide pin (19) inserts stator to be weldedIn lamination teeth groove, for realizing the circumferential location to stator lasmination, described stator lasmination is placed on stator load bearing unit(3) on;
Described compression module comprises the stator hold-down mechanism (5), the second shaft coupling (6) and the power list that connect successivelyUnit (7), described stator hold-down mechanism (5) is provided with pressure sensor and displacement transducer, described power unit(7), pressure sensor is connected with central control module (8) respectively with displacement transducer, described stator compacting machineStructure (5) is pressed and is put on stator lasmination to be welded;
Described stator hold-down mechanism (5) comprises the second connecting axle (14), the upper plate (15) connecting successively and pressesTight cylinder (16), described the second connecting axle (14) is connected with power unit (7), and described pressure sensor is located atOn the end face that compression cylinder (16) contacts with stator lasmination, described displacement transducer is located at and compresses on cylinder (16);
Described welding module comprises two welding units, is symmetricly set on carrying and rotary module both sides.
2. the rotational automatic welding system of a kind of motor stator laminated according to claim 1, its feature existsIn: described stator load bearing unit (3) comprises the loading plate (12) for placing stator lasmination, this loading plate (12)One side is provided with for realizing the locating shaft (11) to stator lasmination axial location, and another side is provided with and electric motor units (1)The first connecting axle (13) connecting.
3. the rotational automatic welding system of a kind of motor stator laminated according to claim 1 and 2, its spyLevy and be: described electric motor units (1) is servomotor or is combined by common electric machine and rotary encoder.
4. the rotational automatic welding system of a kind of motor stator laminated according to claim 1, its feature existsIn: described guide pin (19) is the metal bar matching with the stator tooth groove shape of stator piece.
5. the rotational automatic welding system of a kind of motor stator laminated according to claim 1, its feature existsIn: described power unit (7) comprises hydraulic cylinder or electric cylinder.
6. the rotational automatic welding system of a kind of motor stator laminated according to claim 1, its feature existsIn: described welding unit comprises the welding machine (9) and the welding gun (10) that are connected, described welding machine (9) and central authorities' controlMolding piece (8) connects.
7. the rotational automatic welding system of a kind of motor stator laminated according to claim 6, its feature existsIn: described welding machine (9) comprises laser welder, plasma arc welder or tig arc welding machine.
8. a rotational automatic welding method for motor stator laminated, is characterized in that: comprise the following steps:
A) setting of initial parameter, described initial parameter comprise speed of welding, welding current, welding pressure assembling force,Weld seam number and stator lasmination height, and according to the anglec of rotation of the weld seam number calculating electric motor units of setting;
B) the spacing clamping of stator lasmination: according to welding initial parameter, by multiple stator piece closed assemblies, pass through guide pinRealize the circumferential location to stator piece, and the stator lasmination after closed assembly is inserted in the locating shaft on loading plate, realizeTo the axial location of stator lasmination;
C) press-fiting of stator lasmination: central control module control power unit starts, drives under stator hold-down mechanismOK, stator lasmination is applied to thrust, pressure sensor detects described thrust and is transferred to central control module,Central control module is adjusted the control to power unit in real time according to the thrust of the welding pressure assembling force of setting and feedbackSignal, pressure control procedure continued to carry out in the welding stage;
D) the height control of stator lasmination: displacement transducer detects the lower line displacement of described stator hold-down mechanism and passesBe defeated by central control module, central control module is according to the stator lasmination height of setting and the descending adjustment of displacement of feedbackThe sheet number of stator piece;
E) welding of symmetrical weld seam on stator lasmination: central control module control welding machine starts, and two are arranged symmetrically withWelding gun synchronizing moving, weld symmetrical weld seam from top to bottom, after completing, welding machine cuts out, welding gun backhaul, stator pressTight mechanism unclamps;
F) welding of many weld seams on stator lasmination: the anglec of rotation control that central control module a) calculates according to stepElectric motor units processed drives stator lasmination rotation, and performs step c) successively, e), f), until complete all welderingsThe welding of seam.
9. the rotational automatic welding method of a kind of motor stator laminated according to claim 8, its feature existsIn described steps d) in, the sheet number of adjusting stator piece is specially: according to the lower line displacement of stator hold-down mechanism withAnd obtain the initial distance of stator hold-down mechanism and loading plate upper surface, calculate current stator lasmination height, according to working asThe comparative result of the stator lasmination height of front stator record stacking height and setting, makes by increasing or reduce stator piece numberProper front stator record stacking height is consistent with setting stator lasmination height.
CN201410475974.5A 2014-09-17 2014-09-17 A kind of rotational automatic welding system and welding method of motor stator laminated Expired - Fee Related CN104353936B (en)

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CN202317424U (en) * 2011-11-02 2012-07-11 江苏通达动力科技股份有限公司 Positioning device for spot welding of stator end plate
CN102513717A (en) * 2011-12-31 2012-06-27 南通巨能锻压机床有限公司 Welder for motor stator of automobile
CN202726262U (en) * 2012-07-23 2013-02-13 上海良浩车圈有限公司 Multi-gun welding device of spiral punching chute of motor stator
CN203156254U (en) * 2013-04-13 2013-08-28 武义县易生模具制造厂 Full-automatic stator core welding machine
CN103433637A (en) * 2013-08-26 2013-12-11 大连交通大学 Automatic welding device and welding method for stators

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