WO2023169312A1 - 采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺 - Google Patents

采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺 Download PDF

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Publication number
WO2023169312A1
WO2023169312A1 PCT/CN2023/079451 CN2023079451W WO2023169312A1 WO 2023169312 A1 WO2023169312 A1 WO 2023169312A1 CN 2023079451 W CN2023079451 W CN 2023079451W WO 2023169312 A1 WO2023169312 A1 WO 2023169312A1
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WO
WIPO (PCT)
Prior art keywords
glue
iron core
station
dispensing
cleaning
Prior art date
Application number
PCT/CN2023/079451
Other languages
English (en)
French (fr)
Inventor
郭斌
周宜存
刘大伟
赵来远
Original Assignee
江阴华新精密科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 江阴华新精密科技股份有限公司 filed Critical 江阴华新精密科技股份有限公司
Priority to EP23765890.1A priority Critical patent/EP4366143A1/en
Priority to US18/550,956 priority patent/US20240146159A1/en
Publication of WO2023169312A1 publication Critical patent/WO2023169312A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/09—Magnetic cores comprising laminations characterised by being fastened by caulking
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2215/00—Specific aspects not provided for in other groups of this subclass relating to methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine

Definitions

  • the invention relates to the technical field of manufacturing stator and rotor cores for motors used in new energy electric vehicles and precision motor stator cores that require high motor performance. Specifically, it relates to a stamping progressive die for motor stator and rotor cores that adopts dispensing lamination and Dispensing process.
  • the motor stator and rotor core includes the motor stator core and the motor rotor core, which are both made of silicon steel sheets (punched sheets). Silicon steel sheets are usually stamped on a punch machine using a stamping progressive die.
  • the stamping progressive die is provided with an upper template, a lower template and a discharge plate located between the upper template and the lower template. A plurality of punches are installed on the upper template, and the corresponding position of the lower template is installed with the The die is matched with the punch to form multiple punching stations.
  • the material belt moves forward stepwise from between the upper and lower templates, passing through the stamping dies (punches) on each station in turn.
  • an automatic stacking die is installed under the blanking die of the stamping progressive die.
  • the main component of the automatic stacking die is used to accommodate the iron core punching sheets and connect them with the iron core punching die.
  • the common ways of fixing the laminated structure of the iron core punched sheets include stack riveting fixation and welding fixation.
  • the iron core punching sheets of the stacking riveting fixation method are stamped with stacking riveting points.
  • two adjacent iron core punching sheets are combined with each other through the stacking riveting points on them.
  • the two adjacent motor stator core punching sheets are welded together.
  • the specific implementation method is to set up a dispensing station on the stamping progressive die, and a dispensing device is set up on the dispensing station.
  • the dispensing device includes There are multiple glue supply nozzles. When the material belt passes through the dispensing station, glue is applied to one side of the material belt through the glue supply nozzles; when blanking, the iron core punch enters the tightening ring, and the two adjacent iron cores The core punched pieces are superimposed and fixed together with glue.
  • the above-mentioned dispensing lamination technology in the prior art still has the following shortcomings:
  • the existing glue supply system of the dispensing device uses pneumatic glue supply, which easily causes unstable air pressure during the dispensing process, making it difficult to control the amount of glue dispensed when dispensing the iron core. If the amount of glue dispensed is too small, the iron core will Insufficient bonding affects the assembly and use of the iron core; too much glue is dispensed, and the glue is easy to overflow and is difficult to clean. On the one hand, it will affect the appearance of the iron core and subsequent assembly, and on the other hand, it will also affect the quality of the iron core to a certain extent. Magnetic properties.
  • the glue inlet channels and nozzles (dispensing output ports) on the glue dispensing device are easily blocked or contaminated during use. After blocking or pollution, cleaning and maintenance are more troublesome, which also affects the efficiency of stamping production.
  • the ambient temperature of the stamping workshop used to manufacture iron cores will change. Especially in the cold winter, too low a temperature may cause the curing speed of the glue to slow down, thereby greatly reducing the efficiency of stamping production and possibly affecting the curing process. strength.
  • the present invention proposes a progressive die and glue dispensing process for stamping the stator and rotor core of a motor using glue lamination, aiming to improve the quality and production efficiency of the glue lamination of the stator and rotor core of the motor, thereby improving the motor efficiency and reduce the energy consumption of the motor.
  • a progressive die for stamping the stator and rotor core of a motor using glue dispensing lamination including a stamping station and a first component glue point that are sequentially arranged on the progressive die for stamping the stator and rotor core of a motor according to the moving direction of the material belt.
  • An automatic iron core punching and stacking mechanism is provided below the blanking station, and the first component glue dispensing station One of the glue dispensing stations and the second component glue dispensing station is located above the material belt, and the other glue dispensing station is located below the material belt; where, The first component glue dispensing station is provided with a first component glue dispensing device for dispersing the first component glue points to one side of the material belt, and at the second component glue point The glue station is provided with a second component glue dispensing device for dispersing the second component glue to the other side of the material belt, and the first component glue dispensing device is arranged on the The position of each glue point on one side of the material belt and the position of each glue point arranged on the other side of the material belt through the second component glue dispensing device are arranged to face each other in the up and down direction.
  • the rubber material of one component is the main rubber material, and the rubber material of the other component is used to promote the main rubber material. Catalyst for rubber curing.
  • the automatic stacking mechanism for iron core punching and lamination includes an automatic stacking die, and the automatic stacking die is a rotary iron core lamination pressing die; the rotary iron core lamination pressing die is provided with a A tightening ring with an interference fit on the outer edge of the iron core punching piece.
  • the tightening ring is driven by a servo motor to realize a variable rotation angle of the tightening ring;
  • the automatic stacking mechanism of the iron core punching piece also includes a Below the automatic stacking mold, a servo pressure relief system is used to exert a supporting force on the iron core in the rotary core lamination press-fitting mold.
  • the servo pressure relief system includes a servo pressure relief system arranged below the tightening ring.
  • the rotatable floating induction type jacking assembly includes a rotatable floating induction type jacking assembly that is rotatably arranged on the telescopic rod of the servo electric cylinder and can A push-up pallet floats up and down at a certain distance, and a displacement sensor provided on the telescopic rod of the servo electric cylinder and located below the push-up pallet for monitoring the up-and-down floating position of the push-up pallet.
  • the displacement sensor is a non-contact distance sensing sensor.
  • the rotatable floating inductive jacking assembly also includes a support seat ring fixed on the upper end of the telescopic rod of the servo electric cylinder, a central positioning through hole provided on the support seat ring, and the lower end of the jacking tray is provided with There is a positioning shaft, and the clamping tray is rotated through the positioning shaft and is installed on the central positioning through hole of the support seat ring; the upper part of the support seat ring is provided with a plane thrust bearing, and the positioning shaft of the clamping tray is A spring seat ring is also coated on the top, and the spring seat ring is located between the lower end surface of the clamping tray and the upper end surface of the planar thrust bearing, and is provided between the clamping tray and the spring seat ring.
  • each iron core punching piece is squeezed into the tightening ring of the automatic stacking die in turn The lamination of each iron core punched piece is realized in the tightening ring.
  • the main rubber material and the catalyst at each position point between the upper and lower adjacent iron core punches in the tightening ring are in direct contact with each other, so that the main rubber material accelerates solidification, thereby
  • the upper and lower adjacent iron core punching sheets are firmly bonded to form an iron core; when the iron core punching sheets are stacked, the servo pressure relief system is used to achieve precise stacking of the iron core punching sheets, thereby forming an iron core with a total height and size that meets the requirements.
  • the telescopic rod of the servo electric cylinder is lowered by a distance of the thickness of the iron core punching piece to ensure that the telescopic rod is always pushing the pallet synchronously after each blanking. Tightly tighten the lower end surface of the iron core in the tightening ring.
  • the servo electric cylinder is connected to a controller.
  • the controller is a PLC controller.
  • the above-mentioned servo pressure relief system uses a servo electric cylinder as the driving element to support the iron core. Compared with the hydraulic lifting cylinder, it has the advantages of compact structure, no oil pollution, fast response and good controllability.
  • the displacement is exactly equal to the distance of the thickness of one iron core punch, so that the two adjacent iron cores
  • the gap between the punched sheets is eliminated to achieve precise lamination; before the next blanking and stacking, based on the data measured by the distance sensing sensor, the telescopic rod of the servo electric cylinder actively moves down a distance of the thickness of the core punched sheets, and at the same time, through the rotary
  • the core lamination press-fitting die turns the rotary body containing the tightening ring through a certain equal angle to prepare for the next blanking and lamination.
  • a motor rotor punching station group and a motor stator punching station group are arranged in sequence on the motor stator and rotor iron core stamping progressive die according to the moving direction of the material belt.
  • Cutting station group, and the punching station, the first component glue dispensing station, the second group are respectively provided on the motor rotor punching station group and the motor stator punching station group. It is divided into a glue dispensing station and a blanking station, and the automatic iron core punching and stacking mechanism is provided below each of the blanking stations.
  • each stamping station is provided with Upper stamping die and lower stamping die.
  • the blanking station is provided with an upper blanking die and a lower blanking die.
  • the upper stamping die and the upper blanking die are both male dies.
  • the lower stamping die and the lower blanking die are The dies are all concave dies, the convex mold is fixed on the upper template of the progressive die for punching the stator and rotor core of the motor, and the female die is fixed on the lower template of the progressive die for stamping the stator and rotor core of the motor.
  • a discharge plate is provided for the punch to exit.
  • the first component rubber dispensing station can be set at the last stamping station before the blanking station (the stamping station used for punching the inner contour) at the same time, so as to Make the mold structure more compact.
  • the first component of the rubber is a main rubber with a relatively large viscosity
  • the second component of the rubber is a catalyst with a relatively small viscosity
  • the third component of the main rubber dispensing station is One component glue dispensing station is located below the material belt on the progressive die for punching the stator and rotor core of the motor, and the second component glue dispensing station serves as the catalyst dispensing station.
  • the progressive die for punching the stator and rotor core of the motor is located above the material strip.
  • the viscosity of the main rubber material is 2000-6000CP, and the viscosity of the catalyst is 50-2500CP.
  • the viscosity of the main rubber material is 5000-6000CP, and the viscosity of the catalyst is 500-1000CP.
  • the higher viscosity of the above-mentioned main rubber material can ensure that its distribution points will not fall off when it is placed on the lower end surface of the material belt during the stamping process.
  • the lower viscosity of the catalyst is conducive to contact and pressure with the main rubber material when the iron core punching sheets are superimposed. After being combined, it can more fully penetrate into the main rubber material, thereby improving the lamination bonding strength of the iron core punched sheets.
  • the first component glue dispensing device as the main glue dispensing device is installed on the lower template of the progressive die for stamping the stator and rotor core of the motor
  • the second component glue dispensing device as the catalyst dispensing device is installed on the discharge plate of the progressive die for stamping the stator and rotor core of the motor.
  • the first component glue dispensing device and the second component glue dispensing device respectively include a glue dispensing tray and a number of dispensing nozzle bodies dispersedly arranged on the glue dispensing tray, so
  • the dispensing nozzle body is provided with a glue inlet channel.
  • One end of the glue inlet channel is a dispensing output port.
  • the other end of the glue inlet channel is connected to a glue inlet pipe joint.
  • the glue inlet pipe joint is connected to the glue inlet pipe.
  • Glue system the dispensing nozzle body is also provided with a cleaning channel, one end of the cleaning channel is connected to the glue inlet channel, one end of the cleaning channel is connected to a cleaning pipe joint, and the cleaning pipe joint is cleaned
  • the pipeline is connected to a cleaning liquid supply system; a glue solenoid valve is provided on the glue inlet pipeline, and a cleaning liquid solenoid valve is provided on the cleaning pipeline; wherein, the glue supply system
  • the system includes a servo metering glue pump connected to the glue inlet pipeline.
  • the servo metering glue pump of the glue supply system is a servo plunger metering pump.
  • each dispensing nozzle body is equipped with a servo plunger metering pump through the glue inlet pipeline.
  • the cleaning pipelines connecting each dispensing nozzle body are connected to the same cleaning main pipe and then connected to the cleaning liquid supply system.
  • the cleaning liquid supply system includes an air dryer, an air booster pump, an air pressure accumulator, an air pressure regulating valve and a cleaning liquid airtight pressure barrel connected in sequence.
  • an external thread is provided on the outer circle of one end of the dispensing nozzle body, and the dispensing nozzle body is fixed on the dispensing disk through a nut connected to the outer thread of the dispensing nozzle body.
  • the dispensing nozzle bodies are dispersedly arranged along intervals on the dispensing disk.
  • the glue dispensing disk is installed on the dispensing station of the progressive mold of the stator and rotor core of the motor; the glue dispensing disk can be installed above or below the material belt, and the glue dispensing position of the glue dispensing disk The dispensing output port of the nozzle body is aligned with the surface of the material strip.
  • the glue solenoid valve is in an open state, the cleaning fluid solenoid valve is in a closed state, and the output of the glue from the dispensing output port on the dispensing nozzle body is realized through the glue supply system; during the cleaning operation, all The glue solenoid valve is in a closed state, and the cleaning liquid solenoid valve is in an open state, and the glue inlet channel on the dispensing nozzle body is cleaned through the cleaning liquid supply system.
  • a hygroscopic cloth can be temporarily installed at the dispensing output port of the dispensing nozzle body during online cleaning operations.
  • the cleaning station is equipped with a negative pressure cleaning device that uses the principle of negative pressure adsorption to clean the position of each glue point.
  • the negative pressure cleaning device includes a cleaning plate and a cleaning plate dispersedly arranged on the cleaning plate.
  • a plurality of cleaning pipe assemblies are provided inside the cleaning plate.
  • the cleaning pipe assembly includes an outer cleaning pipe and an inner cleaning pipe that are coaxially set with each other.
  • the inner cleaning pipe The front end face of the outer cleaning pipe is set with a certain amount of indentation relative to the front end face of the outer cleaning pipe, the rear end of the outer cleaning pipe and the rear end of the inner cleaning pipe are respectively fixed on the cleaning plate, and Among the outer cleaning tube and the inner cleaning tube, the inner hole at the rear end of one of the cleaning tubes is connected to the negative pressure chamber on the cleaning plate, and the inner hole at the rear end of the other cleaning tube is connected to the outside air.
  • the present invention has a cleaning station after the stamping station and before the first component glue dispensing station, the oil stains originally existing on the material belt and the oil stains generated during the stamping process can be removed through negative pressure.
  • the adsorption method removes all the glue points at the same time, which can avoid the situation where the adhesive between the glue and the iron core punching sheet is not strong due to the presence of oil at the glue point, thus improving the efficiency of the iron core punching.
  • the quality of the glue lamination of the piece is possible to avoid the situation where the adhesive between the glue and the iron core punching sheet is not strong due to the presence of oil at the glue point, thus improving the efficiency of the iron core punching.
  • the quality of the glue lamination of the piece can avoid the situation where the adhesive between the glue and the iron core punching sheet is not strong due to the presence of oil at the glue point, thus improving the efficiency of the iron core punching. The quality of the glue lamination of the piece.
  • a rubber sealing ring is provided on the front end face of the outer cleaning pipe, and the negative pressure chamber on the cleaning plate is connected to the vacuum device through a negative pressure pipeline; in the outer cleaning pipe and the inner cleaning pipe , an air filter surrounding the inner hole portion of the cleaning pipe at the rear end of the cleaning pipe that is connected to the outside air is provided around the inner hole portion.
  • the vacuuming device is a vacuum pump or a vacuum generator.
  • the working principle of the above-mentioned negative pressure cleaning device is: after the material belt moves to the cleaning station, the front ends of the external cleaning tubes located on the cleaning trays above and below the material belt respectively cover the positions of the glue points on the material belt, and then the vacuum is drawn.
  • the outside air is filtered by the air filter and is sucked into the inner cleaning pipe and enters the negative pressure chamber of the cleaning plate through the gap between the outer cleaning pipe and the inner cleaning pipe, and is finally extracted by the vacuum device;
  • the negative pressure airflow at the front end of the inner cleaning tube that is facing the glue point on the material belt takes away the oil stains at the glue point position on the material belt, thus realizing the degreasing function at the glue point position on the material belt.
  • a further improvement is that a laser heating head is provided at the inner hole at the rear end of the inner cleaning tube for non-contact local preheating of the surface of each glue point position on the material belt.
  • the surface of each glue point position is cleaned by the above-mentioned negative pressure and partially preheated by laser before dispensing glue to further improve the curing speed and curing strength of the glue between the iron core punching sheets.
  • the material By setting the laser intensity of the laser heating head and the speed of the negative pressure air flow, the material can be The surface temperature of the glue point is controlled within a preset reasonable range to prevent the temperature of the tape itself from being too low and affecting the curing speed of the two glues after they are mixed.
  • laser heating heads can be used to preheat only both sides of the material strip.
  • the laser heating head can also be used to preheat only one side of the material belt, preferably the upper surface of the material belt, and the heat transfer effect can be used to transfer the mixed rubber material when the iron core punching sheets are superimposed. heat thereby increasing the curing speed.
  • the rotatable floating induction jack assembly of the servo electric cylinder of the servo pressure relief system is also provided with an auxiliary heating device for auxiliary heating of the iron core punching sheets and rubber materials during the lamination process to achieve A hot air flow heating device for accelerating the curing of glue.
  • the hot air flow heating device includes a mounting hole axially disposed in the middle of the upper end of the clamping tray and a straight-handled heating fan disposed in the mounting hole.
  • the hot air outlet of the straight-handle heating fan is set upward, the positioning shaft of the holding tray is provided with an air inlet channel connected to the installation hole, and the central positioning through hole of the support seat ring is provided with an air inlet ring groove, the outer edge surface of the support seat ring is provided with an air inlet channel connected with the central positioning through hole, and the air inlet channel of the support seat ring, the air inlet annular groove of the support seat ring, and the tightening tray
  • the air inlet channels on the positioning shaft are connected in sequence; a number of hot air flow discharge ports connected to the inner holes of the tightening ring are also provided along the circumferential direction at the upper end of the tightening ring of the automatic stacking mold.
  • the straight-handle heating fan is a straight-handle electric hair dryer.
  • a guide pin is provided between the pressing tray and the spring seat ring to prevent relative rotation.
  • an elastic retaining ring is provided on the outer circumference of the lower end of the positioning shaft of the holding tray for limiting the up and down floating distance of the holding tray.
  • the straight-handled heating fan is installed in the mounting hole of the clamping tray through a transitional mounting sleeve wrapped around the outer circle of the handle of the straight-handled heating fan.
  • a wiring hole is provided at the lower end of the mounting hole of the clamping tray, a conductive slip ring is provided on the wiring hole, a wire outlet hole is provided on the spring seat ring, and the wires of the straight-handled heating fan pass through
  • the conductive slip ring and the outlet hole are led to the outside, and the data of the displacement sensor The wires are led out to the outside through the outlet holes.
  • the working principle of the above-mentioned hot air flow heating device is as follows: before blanking, the straight-handled heating fan on the hot air flow heating device sprays hot air flow upward, and the hot air flow flows upward through the inner hole of the iron core punching piece in the tightening ring and then continues. It rises to the upper material belt before blanking, and preheats the rubber on the lower end surface of the material belt; during the blanking process, the punched iron core on the material belt enters the tightening circle and interacts with the original iron in the tightening circle. A hot airflow collection cavity is formed between the core punched pieces.
  • the hot airflow in the cavity is discharged through the hot airflow discharge port on the upper part of the tightening ring and heats the inner hole and cavity of the core punched piece, thereby making the air in the cavity
  • the catalyst and the main rubber material on the iron core punching sheets at the upper and lower positions of the cavity are heated at the same time. After the blanking is completed, the heated catalyst and the main rubber material contact and press each other, thus realizing the gap between the two adjacent iron core punching sheets.
  • the direct heating of the rubber increases the curing speed of the rubber.
  • the iron core punching sheets in the tightening ring are also heated by the hot air flow, thereby indirectly heating the rubber material.
  • the hot air flow heating device in the present invention has the dual heating effect of direct heating and indirect heating of the rubber material, so it has a better effect on the rubber material.
  • the heating speed is faster and the glue curing effect is better.
  • the laser heating head and the hot air flow heating device in the present invention can use only one of them, or they can be used in combination; when the ambient temperature is high or the bonding strength of the iron core punching sheets is It may not be used when the requirements are relatively low.
  • an iron core punching sheet is set between each adjacent group of iron cores, which is a rubber-free iron core punching sheet that does not apply glue.
  • the rubber-free iron core punching sheet enters the tightening ring, it can separate the upper and lower adjacent two sets of stacked iron cores.
  • the iron core discharging pneumatic push rods and belt conveyors are installed on both sides of the servo electric cylinder. After a group of iron cores are stacked, the iron core discharging pneumatic push rods will be located on the tightening pallet. The iron core is pushed to the belt conveyor, and then the belt conveyor transports the iron core to the subsequent process equipment.
  • a glue dispensing and lamination process for motor stator and rotor cores includes the following steps:
  • (1) Setting of dispensing station On the progressive die for punching the stator and rotor core of the motor, set the stamping station, the first component glue dispensing station, and the second component glue point in sequence according to the moving direction of the material belt. Glue station and blanking station, an automatic iron core punching and stacking mechanism is provided below the blanking station, and the One of the first component glue dispensing station and the second component glue dispensing station is located above the material belt, and the other glue dispensing station is located above the material belt.
  • the lower position of The second component glue dispensing station is provided with a second component glue dispensing device for dispersing the second component glue to the other side of the material belt, and through the first component glue
  • the position of each glue point arranged by the material dispensing device on one side of the material belt and the position of each glue point arranged on the other side of the material belt by the second component glue dispensing device are opposite to each other in the up and down direction. Setting; wherein, among the first component rubber material and the second component rubber material, the rubber material of one component is the main rubber material, and the rubber material of the other component is used to promote the Catalyst for curing the main rubber compound;
  • stamping The material belt moves forward stepwise on the progressive die for stamping the stator and rotor core of the motor, and passes through the stamping dies at each stamping station in turn to stamp the cogs, through holes and inner contours;
  • the material belt continues to move forward, successively reaching the first component glue dispensing station and the second component glue dispensing station, and passes through the first component glue dispensing device .
  • the second component glue dispensing device sequentially dispenses the first component glue and the second component glue on the upper and lower sides of the material belt;
  • the tightening tray on the telescopic rod of the servo electric cylinder below the tightening ring is also pre-set at a preset distance from the lower end surface of the iron core in the tightening ring.
  • the iron core punch in the tightening circle moves down a distance of the thickness of the iron core punch, and the bottom iron core punch is exactly pressed by the described The pallet is tightened to achieve the axial tightening effect on each iron core punching piece in the tightening ring during blanking.
  • the first group is also connected with the first group after the stamping station.
  • a cleaning station for cleaning the position of each glue point on the material belt before the glue dispensing operation.
  • the cleaning station is equipped with a device that uses the principle of negative pressure adsorption to realize the cleaning of each glue point.
  • a negative pressure cleaning device for point position cleaning, and a laser heating head for non-contact local preheating of the surface of each glue point position is also provided on the negative pressure adsorption channel of the negative pressure cleaning device;
  • the telescopic rod of the servo electric cylinder below is also equipped with a hot air flow heating device for auxiliary heating of the iron core punching sheets and the rubber material during the lamination process to accelerate the solidification of the rubber material; in the stamping process of step (2) Afterwards and before the dispensing process of step (3), the negative pressure cleaning device is used to clean and laser heat the positions of each glue point on the material belt before the dispensing operation of step (3) is performed. ; In the stacking process of step (5), the hot air flow heating device is also turned on to auxiliary heat the core punching sheets and the rubber material during the stacking process to accelerate the solidification of the rubber material.
  • the present invention uses a dispensing laminated motor stator and rotor core stamping progressive die and dispensing process. It is provided with two dispensing stations for dispensing the main glue on both sides of the material belt.
  • the distribution of dots and catalysts improves the curing speed of the glue when the iron core is punched and laminated.
  • the magnetic properties of the iron core can be improved through the dispensing and lamination of the iron core punch, thereby improving the efficiency of the motor and reducing the energy consumption of the motor. .
  • the present invention uses a dispensing lamination of the motor stator and rotor core stamping progressive die and dispensing process.
  • the first component glue dispensing station and the second component glue dispensing station are separated. Adjacent arrangement can prevent the glue from the upper glue dispensing device from dripping onto the lower glue dispensing device when the material belt is empty when the two glue dispensing stations are arranged in the same position, causing the glue dispensing device to malfunction.
  • the disadvantage of the glue mouth being cured and sealed and failing, thereby improving the reliability of the glue dispensing device.
  • the present invention adopts a dispensing laminated motor stator and rotor core stamping progressive die and dispensing process.
  • the dispensing station of the catalyst with a relatively small viscosity is set between the stamping station and the main rubber material. After the dispensing station and before the blanking station, the low viscosity catalyst can be avoided due to the excessive amount of each stamping station.
  • the stamping vibration spills outside the core punching position, causing the mold to be contaminated.
  • the present invention uses a dispensing laminated motor stator and rotor core stamping progressive die and dispensing process.
  • the powerful servo pressure relief system can control the stacking thickness of the iron core through the specially designed displacement control component (rotatable floating induction jack component) on the servo electric cylinder to avoid excessive tolerance of the core thickness, thus reducing the need for downstream processes. Rework of adding or subtracting wafers due to out-of-tolerance stack thickness.
  • the present invention uses a dispensing laminated motor stator and rotor core stamping progressive die and dispensing process, by matching the rotary core lamination press-fitting die on the punch machine with a specially set-up machine with removable
  • the pressure relief system of the rotary floating inductive jacking component cooperates with each other to make the upper and lower adjacent iron core punched sheets relatively rotate through a certain equal angle and then stacked in a staggered manner. This can reduce the thickness of the iron core punched sheets.
  • the uniformity error (which is caused by the uneven thickness of the core punched sheet itself) and flatness error are uniformized through misaligned stacking, thereby improving the uniformity of the thickness of the core after lamination and reducing the number of core laminations.
  • the final total height error is eliminated, thereby overcoming the disadvantages of uneven core height and large total height error that occur during traditional stamping stacking.
  • the present invention adopts a glue dispensing laminated motor stator and rotor core stamping progressive die and glue dispensing process.
  • the glue supply system of the glue dispensing device adopts a servo-controlled servo metering glue pump as the glue conveyor.
  • the power can realize precise quantitative transportation of glue, which is conducive to precise control of the amount of glue dispensed, and overcomes the disadvantages in the existing technology that the amount of glue dispensed is difficult to accurately control due to unstable air pressure when using pneumatic conveying of glue.
  • the present invention uses a dispensing laminate motor stator and rotor core stamping progressive die and dispensing process.
  • Each dispensing nozzle body of the glue dispensing device is separately configured with a servo column through a glue inlet pipeline.
  • the plug metering pump is conducive to accurately setting different dispensing amounts for different parts of the iron core punch, thereby further improving the quality of the dispensing stack.
  • the present invention adopts a glue dispensing laminated motor stator and rotor core stamping progressive die and glue dispensing process.
  • the glue nozzle body of the glue dispensing device is connected with cleaning fluid through a cleaning pipe joint and a cleaning pipeline.
  • the supply system can realize online cleaning of the glue inlet channel on the dispensing nozzle body. It has good maintainability and overcomes the disadvantages of difficult cleaning and maintenance of the existing pneumatic glue supply system.
  • the present invention uses a dispensing laminated motor stator and rotor core stamping progressive die and dispensing process, which is provided after the stamping station and before the first component glue dispensing station.
  • a cleaning station so the original oil stains on the material belt and the oil stains generated during the stamping process can be removed at each glue point position through negative pressure adsorption, thus avoiding accidents caused by oil stains at the glue point positions.
  • This causes the bonding between the rubber material and the iron core punched sheets to be weak, thereby improving the quality of the glue dispensing and lamination of the iron core punched sheets.
  • the present invention uses a dispensing lamination of the motor stator and rotor core stamping progressive die and dispensing process.
  • the iron core punching automatic stacking mechanism is provided with a hot air flow heating device.
  • the hot air flow heating device has It has dual heating effects of direct heating and indirect heating of the rubber material, so it heats the rubber material faster and has better curing effect of the rubber material, thus further improving the quality of the iron core punching and dispensing lamination.
  • Figure 1 is a schematic diagram of the strip layout of a progressive die for stamping the stator and rotor core of a motor using dispensing lamination according to the present invention
  • Figure 2 is based on the schematic diagram of the strip layout in Figure 1.
  • the first component glue point is also set on the last stamping station before the blanking station (the stamping station used to stamp the inner contour of the motor rotor). Schematic diagram of tape layout at the glue station.
  • Figure 3 is a schematic structural diagram of a progressive die for stamping the stator and rotor core of a motor using dispensing lamination according to the present invention
  • Figure 4 is a schematic diagram of the strip layout after adding a cleaning station based on the schematic diagram of the strip layout in Figure 1;
  • Figure 5 is a schematic structural diagram of a glue dispensing device (including a first component glue dispensing device and a second component glue dispensing device);
  • Figure 6 is a schematic structural diagram of the automatic stacking die of the iron core punching automatic stacking mechanism
  • Figure 7 is a schematic structural diagram of a negative pressure cleaning device installed on the cleaning station
  • Figure 8 is a schematic structural diagram of a further improvement based on the negative pressure cleaning device of Figure 7;
  • FIG. 9 is a partial enlarged view of the rotatable floating induction jack assembly in FIG. 6 .
  • Glue inlet pipe joint, 26 Cleaning channel, 27. Cleaning pipe joint, 28. Glue solenoid valve, 29. Cleaning fluid solenoid valve, 30. Cleaning station, 31. Negative pressure cleaning device, 32. Cleaning tray, 33. Cleaning pipe assembly, 34. Negative Pressure chamber, 35. External cleaning pipe, 36. Internal cleaning pipe, 37. Rubber sealing ring, 38. Vacuuming device, 39. Air filter, 40. Laser heating head, 41. Hot air flow heating device, 42. Direct Handle type heating fan, 43. Air inlet channel, 44. Hot air discharge port, 45. Iron core punching, 46. Iron core unloading pneumatic push rod, 47. Belt conveyor, 48. Rotating floating induction jack Components, 49. Displacement sensor, 50. Support seat ring, 51.
  • Plane thrust bearing 52. Spring seat ring, 53. Compression spring; 54. Transition mounting sleeve, 55. Retaining ring, 56. Conductive slip ring, 57. Air inlet annular groove, 58. Guide pin, 59. Positioning shaft, 60. Glue supply system, 61. Cleaning fluid supply system, 62. Air dryer, 63. Air booster pump, 64. Air pressure accumulator pump, 65. Air regulating valve, 66, cleaning fluid airtight pressure barrel, 67, nut.
  • Figures 1 to 8 show an embodiment of a progressive die for stamping the stator and rotor core of a motor using glue dispensing lamination according to the present invention.
  • the stamping station 3, the first component glue dispensing station 4, the second component glue dispensing station 5 and the blanking station 6 on the die 2 are arranged below the blanking station 6
  • One of the first component glue dispensing station 4 and the second component glue dispensing station 5 is located above the material belt 1, and the other one is located above the material belt 1.
  • the work station is located below the material belt 1; wherein, the first component glue dispensing station 4 is provided with a first component dispensing point for distributing the first component glue to one side of the material belt 1 Glue dispensing device 8, the second component glue dispensing station 5 is provided with a second component glue dispensing point for dispersing the second component glue to the other side of the material belt 1 device 9, and the first component glue dispensing device 8 is arranged at each glue point position 10 on one side of the material belt 1 and the second component glue dispensing device 9 is arranged at the Each glue point position 10 on the other side of the material belt 1 is arranged facing each other in the up and down direction.
  • the rubber material of one component is the main rubber material, and the rubber material of the other component is used to promote the main rubber material. Catalyst for rubber curing.
  • the automatic core punching and stacking mechanism 7 includes an automatic stacking mold 16, and the automatic stacking mold is a rotary core lamination pressing mold; the rotary core lamination pressing mold 16 has A tightening ring 17 is provided with an interference fit on the outer edge of the iron core punching piece 45.
  • the tightening ring 17 is driven by a servo motor to realize a variable rotation angle of the tightening ring 17; the iron core punching piece is automatically
  • the stacking mechanism also includes a servo pressure relief system provided below the automatic stacking mold 16 for exerting a supporting force on the cores in the rotary core lamination pressing mold 16.
  • the servo pressure relief system includes The servo electric cylinder 18 is provided below the tightening ring 17, and the rotatable floating induction type jacking assembly 48 is provided at the upper end of the telescopic rod 19 of the servo electric cylinder 18.
  • the rotatable floating induction type jacking assembly 48 It includes a clamping tray 20 that is rotatably arranged on the telescopic rod 19 of the servo electric cylinder 18 and can float up and down at a certain distance, and a clamping plate 20 that is arranged on the telescopic rod 19 of the servo electric cylinder 18 and is located below the clamping tray 20 Displacement sensor 49 for monitoring the up and down floating position of the clamping pallet 20 .
  • the displacement sensor 49 is a non-contact distance sensing sensor.
  • the rotatable floating induction jack assembly 48 also includes a support seat ring 50 fixed on the upper end of the telescopic rod 19 of the servo electric cylinder 18, and a center positioning through hole provided on the support seat ring 50.
  • the lower end of the tightening tray 20 is provided with a positioning shaft 59.
  • the tightening tray 20 is rotated through the positioning shaft 59 and is installed on the center positioning through hole of the support seat ring 50; the upper part of the support seat ring 50 is provided with a flat surface.
  • Thrust bearing 51, the positioning shaft 59 of the clamping tray 20 is also covered with a spring seat ring 52,
  • the spring seat ring 52 is located between the lower end surface of the clamping tray 20 and the upper end surface of the planar thrust bearing 51 , and a spring seat ring 52 for floating is provided between the clamping tray 20 and the spring seat ring 52 .
  • each core punch 45 is extruded into the tightening of the automatic stacking die 16 in turn
  • the stacking of each core punch 45 is realized in the tightening ring 17, and the main rubber material and the catalyst at each position between the upper and lower adjacent core punch sheets 45 in the tightening ring 17 are in direct contact with each other, so that the main rubber material Accelerate solidification, thereby firmly bonding the upper and lower adjacent iron core punching sheets 45 to form an iron core; when the iron core punching sheets 45 are stacked, the servo pressure relief system is used to achieve precise stacking of the iron core punching sheets 45, thereby forming a total The height and dimensions of the iron core meet the requirements.
  • the telescopic rod 19 of the servo electric cylinder 18 is lowered by a distance of the thickness of the iron core punch 45 to ensure that the telescopic rod 19 rises after each blanking.
  • the tightening pallet 20 is always synchronously tightened on the lower end surface of the iron core in the tightening ring 17 .
  • the servo electric cylinder 18 is connected to the controller.
  • the controller is a PLC controller.
  • the above-mentioned servo pressure relief system uses the servo electric cylinder 18 as the driving element to support the iron core. Compared with the hydraulic lifting cylinder, it has the advantages of compact structure, no oil pollution, fast response and good controllability.
  • the core punch 45 moves downward together, and then synchronously pushes the holding tray 20 floatingly supported on the bottom core punch 45 to move downward so that the lower end surface of the holding tray 20 contacts the upper end surface of the spring seat ring 52,
  • the displacement is exactly equal to the thickness of one core punch 45, thereby eliminating the gap between two adjacent core punches 45 and achieving precise stacking;
  • the telescopic rod 19 of the servo cylinder 18 actively moves down a distance of the thickness of the core punch 45, and at the same time presses the die through the rotary core lamination 16 Turn the tightening ring 17 through a certain equal angle to prepare for the next blanking and stacking.
  • a motor rotor punching station group 12 and a motor stator are arranged in sequence on the motor stator and rotor iron core stamping progressive die according to the moving direction of the material belt.
  • Blanking station group 11, and the punching station 3 and the first component glue dispensing worker are respectively provided on the motor rotor punching station group 12 and the motor stator punching station group 11.
  • the automatic stacking mechanism 7 for iron core punching is provided below each of the blanking stations 6.
  • each stamping station 3 has An upper stamping die and a lower stamping die are provided.
  • the blanking station 6 is provided with an upper blanking die and a lower blanking die, and the upper stamping die and the upper blanking die are both male molds.
  • the lower stamping die The blanking dies are all concave dies, the convex mold is fixed on the upper template 13 of the motor stator and rotor core stamping progressive die 2, and the female die is fixed on the motor stator and rotor core stamping progressive die.
  • a discharge plate 15 for punch ejection is also provided on the lower end surface of the upper template 13.
  • the first component rubber dispenser can be set at the same time on the last stamping station 3 before the blanking station 6 (the stamping station used for punching the inner contour). Bit 4 to make the mold structure more compact.
  • the first component of the rubber is a main rubber with a relatively large viscosity
  • the second component of the rubber is a catalyst with a relatively small viscosity
  • the third component of the main rubber dispensing station is one component glue
  • the material dispensing station 4 is located below the material belt 1 on the stator and rotor core stamping progressive die 2 of the motor.
  • the second component glue dispensing station 5 serves as the catalyst dispensing station.
  • the progressive die 2 for punching the stator and rotor core of the motor is located above the material strip 1 .
  • the viscosity of the main rubber material is 2000-6000CP, and the viscosity of the catalyst is 50-2500CP.
  • the viscosity of the main rubber material is 5000-6000CP, and the viscosity of the catalyst is 500-1000CP.
  • the higher viscosity of the above-mentioned main rubber material can ensure that the dots will not fall off when they are placed on the lower end surface of the material belt during the stamping process.
  • the lower viscosity of the catalyst is beneficial to contact with the main rubber material when the iron core punch 45 is superimposed. After pressing, it can more fully penetrate into the main rubber material, thereby improving the superimposed bonding strength of the iron core punched pieces 45 .
  • the first component glue dispensing device 8 as the main glue dispensing device is installed on the lower template 14 of the motor stator and rotor core stamping progressive die 2 and serves as the catalyst dispensing device.
  • the second component glue dispensing device 9 is installed on the discharge plate 15 of the progressive die 2 for punching the stator and rotor core of the motor.
  • the first component glue dispensing device 8 and the second component glue dispensing device 9 respectively include a glue dispensing tray 21 and a number of points dispersedly arranged on the glue dispensing tray 21 Glue nozzle body 22.
  • the glue nozzle body 22 is provided with a glue inlet channel 23.
  • One end of the glue inlet channel 23 is a glue dispensing output port 24, and the other end of the glue inlet channel 23 is connected to a glue inlet pipe joint 25.
  • the glue inlet pipe joint 25 is connected to the glue supply system 60 through the glue inlet pipeline;
  • the dispensing nozzle body 22 is also provided with a cleaning channel 26, and one end of the cleaning channel 26 is connected with the glue inlet channel 23, so One end of the cleaning channel 26 is connected to a cleaning pipe joint 27, and the cleaning pipe joint 27 is connected to the cleaning liquid supply system 60 through the cleaning pipeline;
  • a glue solenoid valve 28 is provided on the glue inlet pipeline, and a glue solenoid valve 28 is provided on the cleaning pipeline.
  • the servo metering glue pump of the glue supply system 60 is a servo plunger metering pump.
  • each dispensing nozzle body 22 is separately equipped with a servo plunger metering pump through the glue inlet pipeline.
  • the cleaning pipelines connecting each dispensing nozzle body 22 are connected to the same cleaning main pipe and then connected to the cleaning liquid supply system 61 .
  • the cleaning fluid supply system 61 includes an air dryer 62, an air booster pump 63, an air pressure accumulator 64, an air pressure regulating valve 65 and a cleaning fluid airtight pressure barrel 66 connected in sequence.
  • one end of the dispensing nozzle body 22 is provided with an external thread on the outer circle, and the dispensing nozzle body 22 is fixed at the point by a nut 67 connected to the external thread of the dispensing nozzle body 22 On the glue tray 21.
  • the dispensing nozzle body 22 is dispersedly arranged at intervals on the dispensing disk 21 .
  • the dispensing tray 21 is installed at the dispensing station of the progressive mold of the stator and rotor core of the motor; the dispensing tray 21 can be installed above or below the material belt.
  • the dispensing nozzle body 22 of 21 has its dispensing output port 24 aligned with the surface of the material strip.
  • the glue solenoid valve 28 is in an open state, the cleaning fluid solenoid valve 29 is in a closed state, and the glue is output from the dispensing output port 24 on the dispensing nozzle body 22 through the glue supply system; cleaning During operation, the glue solenoid valve 28 is in a closed state and the cleaning liquid solenoid valve 29 is in an open state, and the glue inlet channel 23 on the glue dispensing nozzle body 22 is cleaned through the cleaning liquid supply system.
  • a hygroscopic cloth can be temporarily installed at the dispensing output port 24 of the dispensing nozzle body 22 during online cleaning operations.
  • a cleaning station 30 is used for cleaning point position 10.
  • the cleaning station 30 is provided with a negative pressure cleaning device 31 that uses the principle of negative pressure adsorption to clean each glue point position.
  • the negative pressure cleaning device 31 includes a cleaning tray 32 , a number of cleaning tube assemblies 33 are dispersedly arranged on the cleaning tray 32.
  • a negative pressure chamber 34 is provided inside the cleaning tray 32.
  • the cleaning tube assembly 33 includes outer cleaning tubes 35 and 35 that are coaxially set with each other.
  • the inner cleaning pipe 36 has a front end face with a certain indentation relative to the front end face of the outer cleaning pipe 35 .
  • the rear end of the outer cleaning pipe 35 and the inner cleaning pipe 36 The rear end parts are respectively fixed on the cleaning plate 32, and among the outer cleaning pipe 35 and the inner cleaning pipe 36, the rear end inner hole part of one of the cleaning pipes 35 or 36 is connected to the negative pressure chamber on the cleaning plate. , the rear end inner hole of the other cleaning pipe 35 or 36 is connected to the outside air.
  • a cleaning station 30 is provided after the stamping station 3 and before the first component glue dispensing station 4, the oil stains originally existing on the material belt 1 and those produced during the stamping process can be removed.
  • the oil stains are removed at each sizing point position 10 through negative pressure adsorption, thereby avoiding the occurrence of an unstable bond between the sizing material and the iron core punch 45 due to the presence of oil stains at the sizing point positions 10 , thus improving the quality of the core punching 45 glue lamination.
  • a rubber sealing ring 37 is provided on the front end face of the outer cleaning pipe 35, and the negative pressure chamber 34 on the cleaning plate 32 is connected to the vacuum device 38 through a negative pressure pipeline;
  • the cleaning pipe 35 or 36 that is connected to the outside air is provided with an air filter 29 surrounding the inner hole at the rear end thereof.
  • the vacuum device 38 is a vacuum pump or a vacuum generator.
  • the working principle of the above-mentioned negative pressure cleaning device is: after the material belt 1 moves to the cleaning station 30, the front ends of the outer cleaning pipes 35 located on the cleaning trays 32 above and below the material belt 1 cover the rubber material on the material belt 1 respectively. Point position 10, under the action of the vacuum device 38, the outside air is filtered by the air filter 39 and is sucked into the inner cleaning pipe 36 and enters the cleaning tray 32 through the gap between the outer cleaning pipe 35 and the inner cleaning pipe 36.
  • a further improvement is that a laser heating head 40 for non-contact local preheating of the surface of each glue point position 10 on the material belt 1 is provided at the rear end inner hole of the inner cleaning tube 36 .
  • the surface of each glue point position 10 is cleaned by the above-mentioned negative pressure and locally preheated by the laser before glue is dispensed, so as to further improve the curing speed and curing strength of the glue between the iron core punching pieces 45 .
  • the surface temperature of the glue point position 10 on the material belt can be controlled within a preset reasonable range, thereby preventing the temperature of the material belt 1 itself from being too low and affecting The curing speed of the two rubber compounds after mixing.
  • the laser heating heads 40 can be used to preheat only both sides of the material strip 1 .
  • the laser heating head 40 can also be used to preheat only one side of the material belt 1. It is preferable to preheat the upper surface of the material belt 1.
  • the heat transfer effect can be used to heat the mixed material.
  • the glue conducts heat transfer thereby increasing the curing speed.
  • the rotatable floating induction jack assembly 48 is also provided with a hot air flow heating device 41 for auxiliary heating of the core punch 45 and the glue material during the lamination process to accelerate the solidification of the glue material.
  • the hot air flow heating device 41 includes a mounting hole axially disposed in the middle of the upper end of the clamping tray 20 and a straight-handled heating fan 42 disposed in the mounting hole. The hot air outlet of the straight-handled heating fan 42 is disposed upward.
  • the positioning shaft of the pressing tray 20 is provided with an air inlet channel 43 connected to the installation hole, and the central positioning through hole of the support seat ring 50 is provided with an air inlet annular groove 57.
  • the support seat ring 50 The outer edge surface is provided with an air inlet channel 43 connected with the central positioning through hole, and the air inlet channel of the support seat ring 50, the air inlet annular groove 57 of the support seat ring 50, the positioning shaft of the pressing tray 20
  • the air inlet channels 43 on 59 are connected in sequence; a number of hot air discharge ports connected to the inner holes of the tightening ring 17 are also provided along the circumferential direction at the upper end of the tightening ring 17 of the automatic stacking mold 16 44.
  • the straight-handled heating fan 42 is a straight-handled electric hair dryer.
  • a guide pin 58 is provided between the clamping tray 20 and the spring seat ring 52 to prevent relative rotation.
  • an elastic retaining ring 55 is provided on the outer circumference of the lower end of the positioning shaft 59 of the clamping pallet 20 for limiting the up and down floating distance of the clamping pallet 20 .
  • the straight-handled heating fan 42 is installed in the mounting hole of the clamping tray 20 through a transitional mounting sleeve 54 that is wrapped around the outer circumference of the handle of the straight-handled heating fan 42 .
  • a wiring hole is provided at the lower end of the mounting hole of the clamping tray 20, a conductive slip ring 56 is provided on the wiring hole, a wire outlet hole is provided on the spring seat ring 52, and the straight handle heating
  • the wires of the fan 42 are led to the outside through the conductive slip ring 56 and the wire outlet hole, and the data lines of the displacement sensor 49 are led to the outside through the wire outlet hole.
  • the working principle of the above-mentioned hot air flow heating device 41 is as follows: before blanking, the straight-handled heating fan 42 on the hot air flow heating device 41 sprays hot air upward, and the hot air flows upward through the iron core punching in the tightening ring 17 45 inner hole, continue to rise to the upper material belt 1 before blanking, and preheat the rubber material on the lower end surface of the material belt 1; during the blanking process, the iron core punch 45 on the material belt 1 enters the tightening ring 17 and between the original iron core punching pieces 45 in the tightening ring 17, a hot air flow collection cavity is formed.
  • the hot air flow in the cavity is discharged through the hot air flow discharge port 44 on the upper part of the tightening ring 17 and realizes punching the iron core.
  • Tablet 45 inner hole and The heating of the cavity causes the catalyst and the main rubber material on the iron core punches 45 located at the upper and lower positions of the cavity to be heated at the same time. After the blanking is completed, the heated catalyst and the main rubber material contact and press each other, thus achieving The rubber material between the two upper and lower adjacent core punching sheets 45 is directly heated, thereby increasing the curing speed of the rubber material.
  • the iron core punch 45 in the tightening ring 17 is also heated by the hot air flow, thereby indirectly heating the rubber material.
  • the hot air flow heating device 41 in this embodiment has dual heating effects of direct heating and indirect heating of the rubber material. Therefore, it has a dual heating effect on the rubber material. The heating speed of the material is faster and the curing effect of the rubber material is better.
  • the laser heating head 40 and the hot air flow heating device 41 in this embodiment can use only one of them, or they can be used in combination; when the ambient temperature is high or the iron core punching sheet It may not be used when the bonding strength requirement of 45 is relatively low.
  • an iron core punching piece 45 is provided between each adjacent group of iron cores to form a rubber-free iron core without applying rubber. Punching, the rubber-free iron core punching can separate the upper and lower adjacent two sets of stacked iron cores when entering the tightening ring 17.
  • iron core discharge pneumatic push rods 46 and belt conveyors 47 on both sides of the servo electric cylinder 18. After a group of iron cores is stacked, the iron core discharge pneumatic push rods 46 will The iron core sitting on the clamping pallet 20 is pushed to the belt conveyor 47, and then the belt conveyor 47 transports the iron core to the subsequent process equipment.
  • a glue dispensing and lamination process for motor stator and rotor cores includes the following steps:
  • Dispensing station setting On the motor stator and rotor core stamping progressive die 2, the stamping station 3, the first component glue dispensing station 4, and the second group are set in sequence according to the moving direction of the material belt 1 It is divided into a glue dispensing station 5 and a blanking station 6. An automatic iron core punching and stacking mechanism 7 is provided below the blanking station 6, and the first component glue dispensing station 4 One of the second component glue dispensing stations 5 is located above the material belt 1, and the other glue dispensing station is located below the material belt 1; where, in The first component glue dispensing station 4 is provided with a first component glue dispensing device 8 for dispersing the first component glue onto one side of the material belt 1.
  • the glue dispensing station 5 is provided with a second component glue dispensing device 9 for dispersing the second component glue to the other side of the material belt 1, and through the first component glue
  • the dispensing device 8 is arranged on the material belt 1
  • Each glue point position 10 on one side and each glue point position 10 arranged on the other side of the material belt 1 through the second component glue dispensing device 9 are arranged facing each other in the up and down direction; wherein, in the Among the first component rubber material and the second component rubber material, the rubber material of one component is the main rubber material, and the rubber material of the other component is a catalyst for promoting the curing of the main rubber material. ;
  • stamping The material belt 1 moves forward on the progressive die 2 for stamping the stator and rotor core of the motor, and passes through the stamping dies on each stamping station 3 in sequence to stamp the cogs, through holes and inner contours. ;
  • stacking steps of the stacking process of step (5) are as follows:
  • the servo cylinder 18 When the clamping tray 20 moves downward to contact the spring seat ring 52, the displacement is exactly equal to an iron The distance between the thickness of the core punch 45 is eliminated, thereby eliminating the gap between the two adjacent core punches 45 and achieving precise lamination; before the next blanking and stacking, based on the data measured by the distance sensing sensor 49, the servo cylinder 18 The telescopic rod 19 actively moves down a distance of 45 mm thickness of the iron core punch, and at the same time, the tightening ring 17 is rotated through a certain equal angle through the rotating iron core lamination pressing die 16, thereby preparing for the next blanking and lamination. Be prepared.
  • the third stamping station 3 is also connected to the glue dispensing station after the stamping station 3.
  • a cleaning station 30 is provided in front of the one-component glue dispensing station 4 for cleaning each glue point position 10 on the material belt 1 before the glue dispensing operation.
  • the cleaning station 30 is provided with a load-bearing machine.
  • the negative pressure cleaning device 31 realizes the cleaning of each glue point position based on the principle of pressure adsorption, and the negative pressure adsorption channel of the negative pressure cleaning device 31 is also provided with a laser for non-contact local preheating of the surface of each glue point position.
  • Heating head 40 the telescopic rod 19 of the servo electric cylinder 18 below the blanking station 6 is also provided with a heat pump for auxiliary heating of the iron core punch 45 and the glue material during the lamination process to accelerate the curing of the glue material.
  • Air flow heating device 41 after the stamping process of step (2) and before the dispensing process of step (3), the negative pressure cleaning device 31 is used to clean each glue point position 10 on the material belt 1 in advance After cleaning and laser heating, the glue dispensing operation of step (3) is performed; in the stacking process of step (5), the hot air flow heating device 41 is also turned on to punch the core during the stacking process. 45 and the rubber material for auxiliary heating to accelerate the curing of the rubber material.

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Abstract

一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，点胶叠层装置包括设置在电机定转子铁芯冲压级进模（2）上的冲压工位（3）、第一组分胶料点胶工位（4）、第二组分胶料点胶工位（5）和落料工位（6），落料工位的下方设置有铁芯冲片自动叠装机构（7），且第一组分胶料点胶工位和第二组分胶料点胶工位中的其中一个胶料点胶工位位于料带（1）的上方位置、另一个胶料点胶工位位于料带的下方位置；第一组分胶料点胶工位上设置有第一组分胶料点胶装置（8），第二组分胶料点胶工位上设置有第二组分胶料点胶装置（9）；在第一组分胶料和第二组分胶料中，其中一个组分的胶料为主胶料、另一个组分的胶料为催化剂。

Description

采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺 技术领域
本发明涉及新能源电动汽车用电机定转子铁芯以及对电机性能要求高的精密电机定转子铁芯制造技术领域，具体涉及一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺。
背景技术
电机定转子铁芯包括电机定子铁芯和电机转子铁芯，其均是由矽钢片(冲片)叠合而成。矽钢片通常是采用冲压级进模在冲床上冲压而成。通常，冲压级进模上设置有上模板、下模板和位于所述上模板与下模板之间的卸料板，上模板上安装有多个凸模，下模板的对应位置安装有与所述凸模相适配的凹模，从而形成多个冲裁工位，冲压时，料带从上模板和下模板之间向前步进式移动，依次经过各工位上的冲压模(凸模和凹模)冲压出电机定子铁芯冲片上的通孔、齿槽和内轮廓，最后在落料工位上经落料凸模和落料凹模将铁芯冲片从料带上冲压下来。为了实现铁芯冲片的自动叠装，冲压级进模的落料凹模下方安装有自动叠装模，自动叠装模的主要元件为用于容纳铁芯冲片并与所述铁芯冲片过盈配合的收紧圈，落料时在落料凸模向下冲压力的作用下，被冲裁下来的铁芯冲片逐一挤压进入收紧圈内，从而在收紧圈内形成铁芯冲片的叠层结构。
现有技术中，铁芯冲片的叠层结构的固定方式常见的有叠铆固定和焊接固定。叠铆固定方式的铁芯冲片上冲压有叠铆点，叠装时，相邻两铁芯冲片通过其上面的叠铆点相互结合。焊接固定方式的铁芯冲片上无叠铆点，叠装时，相邻两电机定子铁芯冲片通过焊接结合在一起。
由于叠铆点的存在和制作工艺的原因，叠铆后的电机定子铁芯在相邻两冲片之间在叠铆后可能会存在一定的间隙，因此会影响到铁芯的磁性能。焊接固定方式的铁芯冲片由于省去了叠铆点，其相邻两冲片之间的间隙得 以减小，但由于铁芯焊接时向内熔接会影响铁芯磁路，从而影响铁芯的电磁性能，进而使得生产出的电机的效率降低，由此增加了电机的能耗。
为此，现有技术也开发出了采用胶接固定方式的铁芯，具体实现方法是在冲压级进模上设置点胶工位，点胶工位上设置有点胶装置，点胶装置包括多个供胶喷嘴，料带经过点胶工位时，通过供胶喷嘴将胶水涂布在料带的一面；落料时，铁芯冲片进入收紧圈中，上下相邻的两个铁芯冲片通过胶水叠合固定在一起。但是，现有技术中的上述点胶叠层技术还存在以下不足：
一是由于胶水固化时间较长，因此有可能导致铁芯冲片在收紧圈中堆叠完成后尚未完成固化，导致铁芯出料后发生变形，由此影响了铁芯点胶层叠的质量。如果人为放慢冲压的速度以等待胶水完全固化后再将铁芯从收紧圈中出料，则会大幅度降低冲压生产的效率。
二是现有的点胶装置的供胶系统是采用气动供胶，容易造成点胶过程中的气压不稳定，从而使得铁芯点胶时点胶量不易控制，点胶量过少，铁芯粘接不牢，影响铁芯组装与使用；点胶量过多，胶水容易溢出，不易清理，一方面会影响铁芯外观及后道装配，另一方面也在一定程度上影响到铁芯的磁性能。
三是点胶装置上的进胶通道和喷嘴(点胶输出口)在使用过程中容易堵塞或污染，堵塞或污染后其清理和维护较为麻烦，由此同样影响了冲压生产的效率。
四是用于生产铁芯冲片的板料表面可能存在油污，另外板料在冲床的级进模上通过时，冲床和级进模上的润滑油有可能会污染到板料表面，从而会降低铁芯冲片层叠后的粘结的牢固度，进而降低铁芯的质量。
五是用于制造铁芯的冲压车间的环境温度会发生变化，特别在严寒的冬季由于温度过低可能导致胶水的固化速度减慢，从而大幅度降低冲压生产的效率，并可能影响到固化的强度。
发明内容
为了解决上述问题，本发明提出一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，旨在提高电机定转子铁芯点胶层叠的质量和生产效率，进而提高电机的效率，降低电机的能耗。具体的技术方案如下：
一种采用点胶叠层的电机定转子铁芯冲压级进模，包括按照料带的移动方向依次设置在电机定转子铁芯冲压级进模上的冲压工位、第一组分胶料点胶工位、第二组分胶料点胶工位和落料工位，所述落料工位的下方设置有铁芯冲片自动叠装机构，且所述第一组分胶料点胶工位和第二组分胶料点胶工位中的其中一个胶料点胶工位位于料带的上方位置、其中另一个胶料点胶工位位于料带的下方位置；其中，在所述第一组分胶料点胶工位上设置有用于将第一组分胶料分散布点至料带一面的第一组分胶料点胶装置，在所述第二组分胶料点胶工位上设置有用于将第二组分胶料分散布点至料带另一面的第二组分胶料点胶装置，且通过所述第一组分胶料点胶装置布置在所述料带一面的各胶料点位置与通过所述第二组分胶料点胶装置布置在所述料带另一面的各胶料点位置在上下方向相互正对设置。
优选的，在所述第一组分胶料和所述第二组分胶料中，其中一个组分的胶料为主胶料、其中另一个组分的胶料为用于促进所述主胶料固化的催化剂。
其中，所述铁芯冲片自动叠装机构包括自动叠装模，所述自动叠装模为旋转式铁芯叠片压装模；所述旋转式铁芯叠片压装模上设置有与铁芯冲片外缘过盈配合的收紧圈，所述收紧圈通过伺服电机的驱动实现所述收紧圈回转角度的可变化；所述铁芯冲片自动叠装机构还包括设置在所述自动叠装模的下方用于对旋转式铁芯叠片压装模内的铁芯施加顶托力的伺服排压系统，所述伺服排压系统包括设置在所述收紧圈下方的伺服电缸、设置在所述伺服电缸的伸缩杆上端的可回转浮动感应式顶托组件，所述可回转浮动感应式顶托组件包括转动设置在所述伺服电缸的伸缩杆上且可上下浮动一定间距的顶紧托盘、设置在所述伺服电缸的伸缩杆上且位于所述顶紧托盘下方的用于监测所述顶紧托盘上下浮动位置的位移传感器。
优选的，所述位移传感器为非接触式距离感应式传感器。
所述可回转浮动感应式顶托组件还包括固定在所述伺服电缸的伸缩杆上端的支撑座圈、设置在所述支撑座圈上的中心定位通孔，所述顶紧托盘的下端设置有定位轴，所述顶紧托盘通过所述定位轴转动设置在所述支撑座圈的中心定位通孔上；所述支撑座圈的上部设置有平面推力轴承，所述顶紧托盘的定位轴上还外套有弹簧座圈，所述弹簧座圈位于所述顶紧托盘的下端面与所述平面推力轴承的上端面之间，且在所述顶紧托盘与所述弹簧座圈之间设置有用于浮动顶紧所述顶紧托盘的压缩弹簧；落料时，在落料工位上落料模的作用下，各铁芯冲片依次挤压进入所述自动叠装模的收紧圈中实现各铁芯冲片的层叠，位于所述收紧圈中上下相邻的铁芯冲片之间各位置点的主胶料与催化剂相互正对接触，使得主胶料加速凝固，从而将上下相邻的铁芯冲片粘结牢固而形成铁芯；铁芯冲片层叠时，通过所述伺服排压系统实现铁芯冲片的精确层叠，从而形成总高度尺寸符合要求的铁芯。
其中，位于落料工位上的铁芯冲片每落料一次，伺服电缸的伸缩杆下降一个铁芯冲片厚度的距离，以保证每一次落料后伸缩杆上顶紧托盘始终同步顶紧在收紧圈内铁芯的下端面。
其中，所述伺服电缸连接控制器。
优选的，所述控制器为PLC控制器。
上述伺服排压系统中采用伺服电缸为顶托铁芯的驱动元件，相比液压顶缸具有结构紧凑、无油性污染和反应快速可控性好等优势。
所述伺服排压系统实现铁芯冲片精确层叠的方法如下：
S1、顶紧托盘位置的初始设定：收紧圈内部空置时，通过调整伺服电缸的伸缩杆的上下位置，使得顶紧托盘设置在预定高度位置上，所述顶紧托盘的预定高度位置要保证第一片铁芯冲片落料到收紧圈内后其所述顶紧托盘与铁芯冲片弹性浮动接触；
S2、顶紧托盘位置的精确预置：收紧圈内落料完第一片铁芯冲片后， 通过伺服电缸伸缩杆上端的距离感应传感器监测顶紧托盘下端面与弹簧座圈上端面的距离，然后调整伺服电缸伸缩杆的上下位置，使得顶紧托盘下端面与弹簧座圈上端面之间的距离正好等于一个铁芯冲片厚度的距离；
S3、收紧圈的转位设置：根据铁芯冲片上槽体或孔的等分情况，通过旋转式铁芯叠片压装模将包含有收紧圈的回转体转过一定的等分角度；
S4、落料层叠：在落料工位上落料模的冲压力作用下，待落料的铁芯冲片挤压进入所述自动叠装模的收紧圈中并与收紧圈中前一个落料的铁芯冲片相接触，从而带动收紧圈中最下面的铁芯冲片一起向下移动，进而同步推动浮动支撑在最下面铁芯冲片上的顶紧托盘向下移动而使得顶紧托盘的下端面与弹簧座圈上端面相接触，顶紧托盘向下移动至与弹簧座圈接触时所经过的位移量正好等于一个铁芯冲片厚度的距离，从而使得相邻两铁芯冲片的间隙消除，实现精确层叠；下一次落料层叠前，以距离感应传感器测得的数据为基准，伺服电缸的伸缩杆主动下移一个铁芯冲片厚度的距离，同时通过旋转式铁芯叠片压装模将包含有收紧圈的回转体转过一定的等分角度，从而为下一次的落料层叠做好准备。
优选的，为了实现电机定子冲压与电机转子冲压的相互套料，在所述电机定转子铁芯冲压级进模上按照料带的移动方向依次设置有电机转子冲裁工位组和电机定子冲裁工位组，且在所述电机转子冲裁工位组和电机定子冲裁工位组上各自分别设置有所述的冲压工位、第一组分胶料点胶工位、第二组分胶料点胶工位和落料工位，各所述落料工位的下方各自分别设置有所述的铁芯冲片自动叠装机构。
优选的，为适应铁芯冲片上齿槽冲裁、通孔冲裁和内轮廓冲裁的需要，所述冲压工位的数量有若干个；其中，每一所述冲压工位上分别设置有上冲压模和下冲压模，所述落料工位上设置有上落料模和下落料模，且所述上冲压模、上落料模均为凸模，所述下冲压模、下落料模均为凹模，所述凸模固定在所述电机定转子铁芯冲压级进模的上模板上，所述凹模固定在所述电机定转子铁芯冲压级进模的下模板上，在所述上模板的下端面上还 设置有用于凸模退出的卸料板。
优选的，有多个冲压工位时，可以在落料工位之前的最后一个冲压工位(用于冲压内轮廓的冲压工位)上同时设置第一组分胶料点胶工位，以使得模具结构更紧凑。
优选的，所述第一组分胶料为粘度相对较大的主胶料，所述第二组分胶料为粘度相对较小的催化剂；且作为主胶料点胶工位的所述第一组分胶料点胶工位在所述电机定转子铁芯冲压级进模上位于所述料带的下方位置，作为催化剂点胶工位的所述第二组分胶料点胶工位在所述电机定转子铁芯冲压级进模上位于所述料带的上方位置。
优选的，在温度20℃条件下，其所述主胶料的粘度为2000～6000CP，所述催化剂的粘度为50～2500CP。
更优选的，在温度20℃条件下，其所述主胶料的粘度为5000～6000CP，所述催化剂的粘度为500～1000CP。
上述主胶料的较高粘度能够确保冲压过程中其布点到料带下端面上时不会掉落，催化剂的较低粘度则有利于在铁芯冲片叠合时与主胶料接触、压合后能够更充分地渗透到主胶料中，从而提高铁芯冲片的叠合粘结强度。
本发明中，作为主胶料点胶装置的所述第一组分胶料点胶装置安装在电机定转子铁芯冲压级进模的下模板上，作为催化剂点胶装置的所述第二组分胶料点胶装置安装在电机定转子铁芯冲压级进模的卸料板上。
本发明中，所述第一组分胶料点胶装置、第二组分胶料点胶装置分别包括点胶盘和分散布置在所述点胶盘上的若干数量的点胶喷头本体，所述点胶喷头本体上设置有进胶通道，所述进胶通道的一端为点胶输出口，所述进胶通道的另一端连接有进胶管接头，所述进胶管接头通过进胶管路连接供胶系统；所述点胶喷头本体上还设置有清洗通道，所述清洗通道的一端与所述进胶通道相连通，所述清洗通道的一端连接有清洗管接头，所述清洗管接头通过清洗管路连接清洗液供给系统；在所述进胶管路上设置有胶水电磁阀，在所述清洗管路上设置有清洗液电磁阀；其中，所述供胶系 统包括连接所述进胶管路的伺服计量胶水泵。
优选的，所述供胶系统的伺服计量胶水泵为伺服柱塞计量泵。
为了更加精确地控制点胶量，进一步的改进方案是：每个点胶喷头本体分别通过进胶管路单独配置一个伺服柱塞计量泵。
本发明中，连接各点胶喷头本体的清洗管路连接至同一清洗总管上再连接至所述清洗液供给系统。
本发明中，所述清洗液供给系统包括依次连接的空气干燥器、空气增压泵、空气蓄压器、空气调压阀和清洗液气密压力桶。
本发明中，所述点胶喷头本体的一端外圆上设置有外螺纹，所述点胶喷头本体通过连接在所述点胶喷头本体外螺纹上的螺母固定在所述点胶盘上。
本发明中，所述点胶喷头本体在所述点胶盘上沿间隔分散布置。
本发明中，所述点胶盘安装在电机定转子铁芯级进模的点胶工位上；所述点胶盘可以安装在料带的上方或下方位置，所述点胶盘的点胶喷头本体其点胶输出口对准料带的表面。
点胶作业时，所述胶水电磁阀处于打开状态、所述清洗液电磁阀处于关闭状态，并通过供胶系统实现胶料从点胶喷头本体上点胶输出口的输出；清洗作业时，所述胶水电磁阀处于关闭状态、所述清洗液电磁阀处于打开状态，并通过清洗液供给系统实现对点胶喷头本体上进胶通道的清洗。
注意为防止清洗液污染模具，进行在线清洗作业时可在点胶喷头本体的点胶输出口部位临时设置吸湿布料。
作为本发明的更进一步改进，在所述冲压工位之后与所述第一组分胶料点胶工位之前还设置有用于在点胶作业前对料带上的各胶料点位置进行清洗的清洗工位，所述清洗工位上设置有利用负压吸附原理实现各胶料点位置清洗的负压清洗装置，所述负压清洗装置包括清洗盘、分散布置在所述清洗盘上的若干数量的清洗管组件，所述清洗盘的内部设置有负压腔，所述清洗管组件包括相互同轴套装的外清洗管和内清洗管，所述内清洗管 的前端端面相对于所述外清洗管的前端端面设置有一定的缩进量，所述外清洗管的后端部位和所述内清洗管的后端部位分别固定在所述清洗盘上，且在外清洗管和内清洗管中，其中的一个清洗管的后端内孔部位连通所述清洗盘上的负压腔、其中的另一个清洗管的后端内孔部位与外界空气相连通。
本发明由于在所述冲压工位之后与所述第一组分胶料点胶工位之前设置了清洗工位，因此能够将料带上原先存在的油污和冲压过程中产生的油污通过负压吸附的方式在各胶料点位置一并去除，由此可以避免因胶料点位置存在油污而使得胶料与铁芯冲片之间粘结不牢固的情况发生，由此提高了铁芯冲片点胶层叠的质量。
本发明中，所述外清洗管的前端端面上设置有橡胶密封圈，所述清洗盘上的负压腔通过负压管路连接至抽真空装置；在所述外清洗管和内清洗管中，其与外界空气相连通的清洗管的后端内孔部位的外围设置有围住所述内孔部位的空气滤清器。
优选的，所述抽真空装置为真空泵或真空发生器。
上述负压清洗装置的工作原理是：料带移动至清洗工位后，位于料带上方和下方清洗盘上的各外清洗管前端分别对应罩住料带上的胶料点位置，在抽真空装置的作用下，外界空气经空气滤清器过滤后被吸入内清洗管并经过外清洗管与内清洗管之间的间隙而进入到清洗盘的负压腔内，最后由抽真空装置抽出；在此过程中，正对于料带上胶料点位置的内清洗管前端的负压气流将料带上胶料点位置的油污带走，从而实现了料带上胶料点位置的去油污功能。
进一步的改进方案是，在所述内清洗管的后端内孔部位还设置有用于对料带上的各胶料点位置表面进行非接触局部预热的激光加热头。各胶料点位置表面通过上述负压清洗和激光局部预热后再点胶，以进一步提高铁芯冲片之间胶料的固化速度和固化强度。
通过设置激光加热头的激光强度和负压气流的速度，可以使得料带上 胶料点位置的表面温度控制在一个预先设定的合理范围，从而防止料带本身温度过低而影响两种胶料混合后的固化速度。
优选的，可以只在料带的两面分别用激光加热头进行预热。
优选的，也可以只在料带的一面用激光加热头进行预热，优选为对料带的上面进行预热，铁芯冲片叠合时利用热传递效应能够对混合后的胶料进行传热从而提高固化速度。
作为本发明的更进一步改进，在所述伺服排压系统的伺服电缸的可回转浮动感应式顶托组件上还设置有用于对层叠过程中的铁芯冲片和胶料进行辅助加热以实现胶料加速固化的热气流加热装置，所述热气流加热装置包括沿轴向设置在所述顶紧托盘上端中间部位的安装孔、设置在所述安装孔内的直柄式加热风机，所述直柄式加热风机的热风出风口朝上设置，所述顶紧托盘的定位轴上设置有连通所述安装孔的进风通道，所述支撑座圈的中心定位通孔上设置有进风环形槽，所述支撑座圈的外缘表面设置有与所述中心定位通孔相连通的进风通道，且所述支撑座圈的进风通道、支撑座圈的进风环形槽、顶紧托盘定位轴上的进风通道依次连通；在所述自动叠装模的收紧圈的上端部位沿周向还设置有若干数量与所述收紧圈内孔相连通的热气流排放口。
优选的，所述直柄式加热风机采用直柄式电吹风机。
本发明中，所述顶紧托盘与所述弹簧座圈之间设置有防止其相对转动的导向销。
本发明中，所述顶紧托盘的定位轴下端外圆上设置有用于限制所述顶紧托盘上下浮动距离的弹性挡圈。
本发明中，所述直柄式加热风机通过外套在所述直柄式加热风机柄部外圆上的过渡安装套安装在所述顶紧托盘的安装孔内。
本发明中，所述顶紧托盘的安装孔下端设置有接线孔，所述接线孔上设置有导电滑环，所述弹簧座圈上设置有出线孔，所述直柄式加热风机的电线通过所述导电滑环和所述出线孔引出至外部，所述位移传感器的数据 线通过所述出线孔引出至外部。
上述热气流加热装置的工作原理如下：落料前，热气流加热装置上的直柄式加热风机向上喷出热气流，该热气流向上流动经过收紧圈内的铁芯冲片内孔后继续上升到达落料前的上方料带上，对料带下端面上的胶料进行预热；落料过程中，料带上铁芯冲片进入到收紧圈内并与收紧圈内原有铁芯冲片之间形成一热气流汇集空腔，空腔内的热气流通过收紧圈上部的热气流排放口排出并实现对铁芯冲片内孔和空腔部位的加热，从而使得位于空腔上下位置的铁芯冲片上的催化剂和主胶料同时受热，落料完成后受热的催化剂和主胶料相互接触、压合，由此实现了上下相邻的两个铁芯冲片之间胶料的直接加热，从而提高了胶料固化的速度。另外，在热气流上升的过程中，收紧圈内的铁芯冲片也同时被热气流所加热从而起到对胶料的间接加热。与现有技术中采用磁感应加热铁芯冲片实现胶料间接加热方式相比，本发明中的热气流加热装置具有对胶料的直接加热和间接加热的双重加热效果，因此其对胶料的加热速度更快、胶料固化的效果更好。
根据铁芯冲片粘合强度的需要，本发明中的激光加热头和热气流加热装置可以只使用其中的一种，也可以联合使用；在环境温度较高或铁芯冲片的粘合强度要求相对较低时也可以不使用。
本发明中，根据每组铁芯的叠层数量，在料带冲裁过程中，相邻每组铁芯之间设置一片铁芯冲片为不施加胶料的无胶料铁芯冲片，无胶料铁芯冲片在进入收紧圈内时可将上下相邻的两组叠装完成的铁芯隔开。
本发明中，所述伺服电缸的两侧分置有铁芯卸料气动推杆和皮带输送机，一组铁芯叠装完成后，由铁芯卸料气动推杆将坐落在顶紧托盘上的铁芯推送至皮带输送机上，然后由皮带输送机将铁芯输送至后续工序设备上。
一种电机定转子铁芯的点胶层叠工艺，包括如下步骤：
(1)点胶工位设置：在电机定转子铁芯冲压级进模上按照料带的移动方向依次设置冲压工位、第一组分胶料点胶工位、第二组分胶料点胶工位和落料工位，所述落料工位的下方设置有铁芯冲片自动叠装机构，且所述 第一组分胶料点胶工位和第二组分胶料点胶工位中的其中一个胶料点胶工位位于料带的上方位置、其中另一个胶料点胶工位位于料带的下方位置；其中，在所述第一组分胶料点胶工位上设置有用于将第一组分胶料分散布点至料带一面的第一组分胶料点胶装置，在所述第二组分胶料点胶工位上设置有用于将第二组分胶料分散布点至料带另一面的第二组分胶料点胶装置，且通过所述第一组分胶料点胶装置布置在所述料带一面的各胶料点位置与通过所述第二组分胶料点胶装置布置在所述料带另一面的各胶料点位置在上下方向相互正对设置；其中，在所述第一组分胶料和所述第二组分胶料中，其中一个组分的胶料为主胶料、其中另一个组分的胶料为用于促进所述主胶料固化的催化剂；
(2)冲压：料带在电机定转子铁芯冲压级进模上向前步进式移动，并依次通过各冲压工位上的冲压模进行齿槽、通孔和内轮廓的冲压；
(3)点胶：料带继续向前移动，先后到达所述第一组分胶料点胶工位和第二组分胶料点胶工位，并通过第一组分胶料点胶装置、第二组分胶料点胶装置先后对料带的上下两面进行第一组分胶料和所述第二组分胶料的点胶；
(4)落料：料带继续向前移动至落料工位，再通过落料工位上的落料模将料带上的铁芯冲片进行落料；
(5)叠装：在落料工位上的落料模作用下，所述铁芯冲片被压入落料工位下方的收紧圈内，并使得进入到收紧圈内的上下相邻的两个铁芯冲片叠合在一起，两个铁芯冲片之间的主胶料与催化剂因相互接触和压合而快速固化，从而叠合在一起；
其中，在所述步骤(5)的叠装工序中，在落料前还将收紧圈下方伺服电缸伸缩杆上的顶紧托盘预先设置在距离收紧圈内铁芯下端面一个预先设定的间距位置，落料时在落料模的作用下收紧圈内的铁芯冲片下移一个铁芯冲片厚度的距离后，其最下面的铁芯冲片正好被所述顶紧托盘所顶紧，从而实现落料时对收紧圈内各铁芯冲片的轴向顶紧作用。
作为本发明的一种电机定转子铁芯的点胶层叠工艺的进一步改进，在所述步骤(1)的点胶工位设置工序中，还在所述冲压工位之后与所述第一组分胶料点胶工位之前设置有用于在点胶作业前对料带上的各胶料点位置进行清洗的清洗工位，所述清洗工位上设置有利用负压吸附原理实现各胶料点位置清洗的负压清洗装置，且在所述负压清洗装置的负压吸附通道上还设置有对于各胶料点位置表面进行非接触局部预热的激光加热头；在所述落料工位下方的伺服电缸伸缩杆上还设置有用于对层叠过程中的铁芯冲片和胶料进行辅助加热以实现胶料加速固化的热气流加热装置；在所述步骤(2)的冲压工序之后与所述步骤(3)的点胶工序之前，预先通过所述负压清洗装置对料带上的各胶料点位置进行清洗和激光加热后再进行所述步骤(3)的点胶作业；在所述步骤(5)的叠装工序中，还开启所述热气流加热装置对层叠过程中的铁芯冲片和胶料进行辅助加热以实现胶料加速固化。
本发明的有益效果是：
第一，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，设置有两个胶料点胶工位，分别在料带的两面进行主胶料的布点和催化剂的布点，从而提高了铁芯冲片叠层时的胶料固化速度，通过铁芯冲片的点胶层叠可以提高铁芯的磁性能，进而提高电机的效率，降低电机的能耗。
第二，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，第一组分胶料点胶工位和第二组分胶料点胶工位分开相邻布置，可以避免两个胶料点胶工位同位上下布置时在料带空缺情况下上方胶料点胶装置的胶料滴落到下方胶料点胶装置上导致胶料点胶装置出胶口被固化封住而失效的弊端，由此提高了胶料点胶装置的可靠性。
第三，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，将粘度相对较小的催化剂的点胶工位设置在冲压工位和主胶料的点胶工位之后、落料工位之前，可以避免低粘度的催化剂因多各冲压工位 的冲压振动而洒落到铁芯冲片位置之外导致模具被污染的弊端。
第四，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，自动叠装模的下方还设置有用于对自动叠装模内的铁芯施加顶托力的伺服排压系统，可通过伺服电缸上特殊设计的位移量控制组件(可回转浮动感应式顶托组件)对铁芯堆叠厚度进行控制，避免铁芯厚度的超差，从而减少后道因叠厚超差产生的加片或减片返工作业。
第五，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，通过在冲床上配套旋转式铁芯叠片压装模，配合专门设置的带有可回转浮动感应式顶托组件的排压系统，两者相互协同，使得上下相邻的铁芯冲片相对转过一定的等分角度后进行错位叠装，其可以将铁芯冲片上的厚度不均匀误差(其由铁芯冲片的板料厚度本身不均匀所导致)和平面度误差通过错位叠装的方式均匀化，从而改善铁芯叠片后厚度的均匀性，同时减少铁芯叠片后的总高度误差，由此克服了传统冲压叠装时出现的铁芯高度不均匀和总高度误差较大的弊端。
第六，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，胶料点胶装置的供胶系统采用伺服控制的伺服计量胶水泵作为胶料输送的动力，能够实现胶料的精确定量输送，从而有利于点胶量的精确控制，并克服了现有技术中采用气动输送胶料时因气压不稳定所导致的点胶量不易精确控制的弊端。
第七，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，胶料点胶装置的每个点胶喷头本体分别通过进胶管路单独配置一个伺服柱塞计量泵，有利于针对铁芯冲片上的不同部位精确设置设置不同的点胶量，从而进一步提高点胶层叠的质量。
第八，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，胶料点胶装置的胶喷头本体上通过清洗管接头和清洗管路连接有清洗液供给系统，能够实现点胶喷头本体上进胶通道的在线清洗，其可维护性好，并克服了现有气动供胶系统清洗维护难的弊端。
第九，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，在所述冲压工位之后与所述第一组分胶料点胶工位之前设置了清洗工位，因此能够将料带上原先存在的油污和冲压过程中产生的油污通过负压吸附的方式在各胶料点位置一并去除，由此可以避免因胶料点位置存在油污而使得胶料与铁芯冲片之间粘结不牢固的情况发生，由此提高了铁芯冲片点胶层叠的质量。
第十，本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺，铁芯冲片自动叠装机构上设置有热气流加热装置，该热气流加热装置具有对胶料的直接加热和间接加热的双重加热效果，因此其对胶料的加热速度更快、胶料固化的效果更好，由此进一步提高了铁芯冲片点胶层叠的质量。
附图说明
图1是本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模的料带排样示意图；
图2是在图1的料带排样示意图基础上，在落料工位之前的最后一个冲压工位(用于冲压电机转子内轮廓的冲压工位)上同时设置第一组分胶料点胶工位的料带排样示意图。
图3是本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模的结构示意图；
图4是在图1的料带排样示意图基础上，增加设置了清洗工位后的料带排样示意图；
图5是胶料点胶装置(包括第一组分胶料点胶装置、第二组分胶料点胶装置)的结构示意图；
图6是铁芯冲片自动叠装机构的自动叠装模的结构示意图；
图7是设置在清洗工位上的负压清洗装置的结构示意图；
图8是在图7的负压清洗装置的基础上进一步改进的结构示意图；
图9是图6中可回转浮动感应式顶托组件的局部放大视图。
图中：1、料带，2、电机定转子铁芯冲压级进模，3、冲压工位，4、第一组分胶料点胶工位，5、第二组分胶料点胶工位，6、落料工位，7、铁芯冲片自动叠装机构，8、第一组分胶料点胶装置，9、第二组分胶料点胶装置，10、胶料点位置，11、电机定子冲裁工位组，12、电机转子冲裁工位组，13、上模板，14、下模板，15、卸料板，16、自动叠装模，17、收紧圈，18、伺服电缸，19、伸缩杆，20、顶紧托盘，21、点胶盘，22、点胶喷头本体，23、进胶通道，24、点胶输出口，25、进胶管接头，26、清洗通道，27、清洗管接头，28、胶水电磁阀，29、清洗液电磁阀，30、清洗工位，31、负压清洗装置，32、清洗盘，33、清洗管组件，34、负压腔，35、外清洗管，36、内清洗管，37、橡胶密封圈，38、抽真空装置，39、空气滤清器，40、激光加热头，41、热气流加热装置，42、直柄式加热风机，43、进风通道，44、热气流排放口，45、铁芯冲片，46、铁芯卸料气动推杆，47、皮带输送机，48、可回转浮动感应式顶托组件，49、位移传感器，50、支撑座圈，51、平面推力轴承，52、弹簧座圈，53、压缩弹簧；54、过渡安装套，55、弹性挡圈，56、导电滑环，57、进风环形槽，58、导向销，59、定位轴，60、供胶系统，61、清洗液供给系统，62、空气干燥器，63、空气增压泵，64、空气蓄压泵，65、空气调节阀，66、清洗液气密压力桶，67、螺母。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
实施例1：
如图1至8所示为本发明的一种采用点胶叠层的电机定转子铁芯冲压级进模的实施例，包括按照料带1的移动方向依次设置在电机定转子铁芯冲压级进模2上的冲压工位3、第一组分胶料点胶工位4、第二组分胶料点胶工位5和落料工位6，所述落料工位6的下方设置有铁芯冲片自动叠装机构7，且 所述第一组分胶料点胶工位4和第二组分胶料点胶工位5中的其中一个胶料点胶工位位于料带1的上方位置、其中另一个胶料点胶工位位于料带1的下方位置；其中，在所述第一组分胶料点胶工位4上设置有用于将第一组分胶料分散布点至料带1一面的第一组分胶料点胶装置8，在所述第二组分胶料点胶工位5上设置有用于将第二组分胶料分散布点至料带1另一面的第二组分胶料点胶装置9，且通过所述第一组分胶料点胶装置8布置在所述料带1一面的各胶料点位置10与通过所述第二组分胶料点胶装置9布置在所述料带1另一面的各胶料点位置10在上下方向相互正对设置。
优选的，在所述第一组分胶料和所述第二组分胶料中，其中一个组分的胶料为主胶料、其中另一个组分的胶料为用于促进所述主胶料固化的催化剂。
其中，所述铁芯冲片自动叠装机构7包括自动叠装模16，所述自动叠装模为旋转式铁芯叠片压装模；所述旋转式铁芯叠片压装模16上设置有与铁芯冲片45外缘过盈配合的收紧圈17，所述收紧圈17通过伺服电机的驱动实现所述收紧圈17回转角度的可变化；所述铁芯冲片自动叠装机构还包括设置在所述自动叠装模16的下方用于对旋转式铁芯叠片压装模16内的铁芯施加顶托力的伺服排压系统，所述伺服排压系统包括设置在所述收紧圈17下方的伺服电缸18、设置在所述伺服电缸18的伸缩杆19上端的可回转浮动感应式顶托组件48，所述可回转浮动感应式顶托组件48包括转动设置在所述伺服电缸18的伸缩杆19上且可上下浮动一定间距的顶紧托盘20、设置在所述伺服电缸18的伸缩杆19上且位于所述顶紧托盘20下方的用于监测所述顶紧托盘20上下浮动位置的位移传感器49。
优选的，所述位移传感器49为非接触式距离感应式传感器。
所述可回转浮动感应式顶托组件48还包括固定在所述伺服电缸18的伸缩杆19上端的支撑座圈50、设置在所述支撑座圈50上的中心定位通孔，所述顶紧托盘20的下端设置有定位轴59，所述顶紧托盘20通过所述定位轴59转动设置在所述支撑座圈50的中心定位通孔上；所述支撑座圈50的上部设置有平面推力轴承51，所述顶紧托盘20的定位轴59上还外套有弹簧座圈52， 所述弹簧座圈52位于所述顶紧托盘20的下端面与所述平面推力轴承51的上端面之间，且在所述顶紧托盘20与所述弹簧座圈52之间设置有用于浮动顶紧所述顶紧托盘20的压缩弹簧53；落料时，在落料工位上落料模的作用下，各铁芯冲片45依次挤压进入所述自动叠装模16的收紧圈17中实现各铁芯冲片45的层叠，位于所述收紧圈17中上下相邻的铁芯冲片45之间各位置点的主胶料与催化剂相互正对接触，使得主胶料加速凝固，从而将上下相邻的铁芯冲片45粘结牢固而形成铁芯；铁芯冲片45层叠时，通过所述伺服排压系统实现铁芯冲片45的精确层叠，从而形成总高度尺寸符合要求的铁芯。
其中，位于落料工位6上的铁芯冲片45每落料一次，伺服电缸18的伸缩杆19下降一个铁芯冲片45厚度的距离，以保证每一次落料后伸缩杆19上顶紧托盘20始终同步顶紧在收紧圈17内铁芯的下端面。
其中，所述伺服电缸18连接控制器。
优选的，所述控制器为PLC控制器。
上述伺服排压系统中采用伺服电缸18为顶托铁芯的驱动元件，相比液压顶缸具有结构紧凑、无油性污染和反应快速可控性好等优势。
所述伺服排压系统实现铁芯冲片精确层叠的方法如下：
(1)顶紧托盘位置的初始设定：收紧圈17内部空置时，通过调整伺服电缸18的伸缩杆19的上下位置，使得顶紧托盘20设置在预定高度位置上，所述顶紧托盘20的预定高度位置要保证第一片铁芯冲片落料到收紧圈17内后其所述顶紧托盘20与铁芯冲片弹性浮动接触；
(2)顶紧托盘位置的精确预置：收紧圈17内落料完第一片铁芯冲片后，通过伺服电缸18伸缩杆19上端的距离感应传感器49监测顶紧托盘20下端面与弹簧座圈52上端面的距离，然后调整伺服电缸18伸缩杆19的上下位置，使得顶紧托盘20下端面与弹簧座圈52上端面之间的距离正好等于一个铁芯冲片45厚度的距离；
(3)收紧圈的转位设置：根据铁芯冲片45上槽体或孔的等分情况，通过旋转式铁芯叠片压装模16将收紧圈17转过一定的等分角度；
(4)落料层叠：在落料工位上落料模的冲压力作用下，待落料的铁芯 冲片45挤压进入所述自动叠装模16的收紧圈17中并与收紧圈17中前一个落料的铁芯冲片45相接触，从而带动收紧圈17中最下面的铁芯冲片45一起向下移动，进而同步推动浮动支撑在最下面铁芯冲片45上的顶紧托盘20向下移动而使得顶紧托盘20的下端面与弹簧座圈52上端面相接触，顶紧托盘20向下移动至与弹簧座圈52接触时所经过的位移量正好等于一个铁芯冲片45厚度的距离，从而使得相邻两铁芯冲片45的间隙消除，实现精确层叠；下一次落料层叠前，以距离感应传感器49测得的数据为基准，伺服电缸18的伸缩杆19主动下移一个铁芯冲片45厚度的距离，同时通过旋转式铁芯叠片压装模16将收紧圈17转过一定的等分角度，从而为下一次的落料层叠做好准备。
优选的，为了实现电机定子冲压与电机转子冲压的相互套料，在所述电机定转子铁芯冲压级进模上按照料带的移动方向依次设置有电机转子冲裁工位组12和电机定子冲裁工位组11，且在所述电机转子冲裁工位组12和电机定子冲裁工位组11上各自分别设置有所述的冲压工位3、第一组分胶料点胶工位4、第二组分胶料点胶工位5和落料工位6，各所述落料工位6的下方各自分别设置有所述的铁芯冲片自动叠装机构7。
优选的，为适应铁芯冲片上齿槽冲裁、通孔冲裁和内轮廓冲裁的需要，所述冲压工位3的数量有若干个；其中，每一所述冲压工位3上分别设置有上冲压模和下冲压模，所述落料工位6上设置有上落料模和下落料模，且所述上冲压模、上落料模均为凸模，所述下冲压模、下落料模均为凹模，所述凸模固定在所述电机定转子铁芯冲压级进模2的上模板13上，所述凹模固定在所述电机定转子铁芯冲压级进模2的下模板14上，在所述上模板13的下端面上还设置有用于凸模退出的卸料板15。
优选的，有多个冲压工位3时，可以在落料工位6之前的最后一个冲压工位3(用于冲压内轮廓的冲压工位)上同时设置第一组分胶料点胶工位4，以使得模具结构更紧凑。
优选的，所述第一组分胶料为粘度相对较大的主胶料，所述第二组分胶料为粘度相对较小的催化剂；且作为主胶料点胶工位的所述第一组分胶 料点胶工位4在所述电机定转子铁芯冲压级进模2上位于所述料带1的下方位置，作为催化剂点胶工位的所述第二组分胶料点胶工位5在所述电机定转子铁芯冲压级进模2上位于所述料带1的上方位置。
优选的，在温度20℃条件下，其所述主胶料的粘度为2000～6000CP，所述催化剂的粘度为50～2500CP。
更优选的，在温度20℃条件下，其所述主胶料的粘度为5000～6000CP，所述催化剂的粘度为500～1000CP。
上述主胶料的较高粘度能够确保冲压过程中其布点到料带下端面上时不会掉落，催化剂的较低粘度则有利于在铁芯冲片45叠合时与主胶料接触、压合后能够更充分地渗透到主胶料中，从而提高铁芯冲片45的叠合粘结强度。
本实施例中，作为主胶料点胶装置的所述第一组分胶料点胶装置8安装在电机定转子铁芯冲压级进模2的下模板14上，作为催化剂点胶装置的所述第二组分胶料点胶装置9安装在电机定转子铁芯冲压级进模2的卸料板15上。
本实施例中，所述第一组分胶料点胶装置8、第二组分胶料点胶装置9分别包括点胶盘21和分散布置在所述点胶盘21上的若干数量的点胶喷头本体22，所述点胶喷头本体22上设置有进胶通道23，所述进胶通道23的一端为点胶输出口24，所述进胶通道23的另一端连接有进胶管接头25，所述进胶管接头25通过进胶管路连接供胶系统60；所述点胶喷头本体22上还设置有清洗通道26，所述清洗通道26的一端与所述进胶通道23相连通，所述清洗通道26的一端连接有清洗管接头27，所述清洗管接头27通过清洗管路连接清洗液供给系统60；在所述进胶管路上设置有胶水电磁阀28，在所述清洗管路上设置有清洗液电磁阀29；其中，所述供胶系统60包括连接所述进胶管路的伺服计量胶水泵。
优选的，所述供胶系统60的伺服计量胶水泵为伺服柱塞计量泵。
为了更加精确地控制点胶量，进一步的改进方案是：每个点胶喷头本体22分别通过进胶管路单独配置一个伺服柱塞计量泵。
本实施例中，连接各点胶喷头本体22的清洗管路连接至同一清洗总管上再连接至所述清洗液供给系统61。
本实施例中，所述清洗液供给系统61包括依次连接的空气干燥器62、空气增压泵63、空气蓄压器64、空气调压阀65和清洗液气密压力桶66。
本实施例中，所述点胶喷头本体22的一端外圆上设置有外螺纹，所述点胶喷头本体22通过连接在所述点胶喷头本体22外螺纹上的螺母67固定在所述点胶盘21上。
本实施例中，所述点胶喷头本体22在所述点胶盘21上沿间隔分散布置。
本实施例中，所述点胶盘21安装在电机定转子铁芯级进模的点胶工位上；所述点胶盘21可以安装在料带的上方或下方位置，所述点胶盘21的点胶喷头本体22其点胶输出口24对准料带的表面。
点胶作业时，所述胶水电磁阀28处于打开状态、所述清洗液电磁阀29处于关闭状态，并通过供胶系统实现胶料从点胶喷头本体22上点胶输出口24的输出；清洗作业时，所述胶水电磁阀28处于关闭状态、所述清洗液电磁阀29处于打开状态，并通过清洗液供给系统实现对点胶喷头本体22上进胶通道23的清洗。
注意为防止清洗液污染模具，进行在线清洗作业时可在点胶喷头本体22的点胶输出口24部位临时设置吸湿布料。
作为本实施例的更进一步改进，在所述冲压工位3之后与所述第一组分胶料点胶工位4之前还设置有用于在点胶作业前对料带1上的各胶料点位置10进行清洗的清洗工位30，所述清洗工位30上设置有利用负压吸附原理实现各胶料点位置清洗的负压清洗装置31，所述负压清洗装置31包括清洗盘32、分散布置在所述清洗盘32上的若干数量的清洗管组件33，所述清洗盘32的内部设置有负压腔34，所述清洗管组件33包括相互同轴套装的外清洗管35和内清洗管36，所述内清洗管36的前端端面相对于所述外清洗管35的前端端面设置有一定的缩进量，所述外清洗管35的后端部位和所述内清洗管36的后端部位分别固定在所述清洗盘32上，且在外清洗管35和内清洗管36中，其中的一个清洗管35或36的后端内孔部位连通所述清洗盘上的负压腔、其中的另一个清洗管35或36的后端内孔部位与外界空气相连通。
本实施例由于在所述冲压工位3之后与所述第一组分胶料点胶工位4之前设置了清洗工位30，因此能够将料带1上原先存在的油污和冲压过程中产生的油污通过负压吸附的方式在各胶料点位置10一并去除，由此可以避免因胶料点位置10存在油污而使得胶料与铁芯冲片45之间粘结不牢固的情况发生，由此提高了铁芯冲片45点胶层叠的质量。
本实施例中，所述外清洗管35的前端端面上设置有橡胶密封圈37，所述清洗盘32上的负压腔34通过负压管路连接至抽真空装置38；在所述外清洗管35和内清洗管36中，其与外界空气相连通的清洗管35或36的后端内孔部位的外围设置有围住所述内孔部位的空气滤清器29。
优选的，所述抽真空装置38为真空泵或真空发生器。
上述负压清洗装置的工作原理是：料带1移动至清洗工位30后，位于料带1上方和下方清洗盘32上的各外清洗管35前端分别对应罩住料带1上的胶料点位置10，在抽真空装置38的作用下，外界空气经空气滤清器39过滤后被吸入内清洗管36并经过外清洗管35与内清洗管36之间的间隙而进入到清洗盘32的负压腔34内，最后由抽真空装置38抽出；在此过程中，正对于料带1上胶料点位置10的内清洗管36前端的负压气流将料带1上胶料点位置的油污带走，从而实现了料带1上胶料点位置10的去油污功能。
进一步的改进方案是，在所述内清洗管36的后端内孔部位还设置有用于对料带1上的各胶料点位置10表面进行非接触局部预热的激光加热头40。各胶料点位置10表面通过上述负压清洗和激光局部预热后再点胶，以进一步提高铁芯冲片45之间胶料的固化速度和固化强度。
通过设置激光加热头40的激光强度和负压气流的速度，可以使得料带上胶料点位置10的表面温度控制在一个预先设定的合理范围，从而防止料带1本身温度过低而影响两种胶料混合后的固化速度。
优选的，可以只在料带1的两面分别用激光加热头40进行预热。
优选的，也可以只在料带1的一面用激光加热头40进行预热，优选为对料带1的上面进行预热，铁芯冲片45叠合时利用热传递效应能够对混合后的胶料进行传热从而提高固化速度。
作为本实施例的更进一步改进，在所述伺服排压系统的伺服电缸18的 的可回转浮动感应式顶托组件48上还设置有用于对层叠过程中的铁芯冲片45和胶料进行辅助加热以实现胶料加速固化的热气流加热装置41，所述热气流加热装置41包括沿轴向设置在所述顶紧托盘20上端中间部位的安装孔、设置在所述安装孔内的直柄式加热风机42，所述直柄式加热风机42的热风出风口朝上设置，所述顶紧托盘20的定位轴上设置有连通所述安装孔的进风通道43，所述支撑座圈50的中心定位通孔上设置有进风环形槽57，所述支撑座圈50的外缘表面设置有与所述中心定位通孔相连通的进风通道43，且所述支撑座圈50的进风通道、支撑座圈50的进风环形槽57、顶紧托盘20定位轴59上的进风通道43依次连通；在所述自动叠装模16的收紧圈17的上端部位沿周向还设置有若干数量与所述收紧圈17内孔相连通的热气流排放口44。
优选的，所述直柄式加热风机42采用直柄式电吹风机。
本实施例中，所述顶紧托盘20与所述弹簧座圈52之间设置有防止其相对转动的导向销58。
本实施例中，所述顶紧托盘20的定位轴59下端外圆上设置有用于限制所述顶紧托盘20上下浮动距离的弹性挡圈55。
本实施例中，所述直柄式加热风机42通过外套在所述直柄式加热风机42柄部外圆上的过渡安装套54安装在所述顶紧托盘20的安装孔内。
本实施例中，所述顶紧托盘20的安装孔下端设置有接线孔，所述接线孔上设置有导电滑环56，所述弹簧座圈52上设置有出线孔，所述直柄式加热风机42的电线通过所述导电滑环56和所述出线孔引出至外部，所述位移传感器49的数据线通过所述出线孔引出至外部。
上述热气流加热装置41的工作原理如下：落料前，热气流加热装置41上的直柄式加热风机42向上喷出热气流，该热气流向上流动经过收紧圈17内的铁芯冲片45内孔后继续上升到达落料前的上方料带1上，对料带1下端面上的胶料进行预热；落料过程中，料带1上铁芯冲片45进入到收紧圈17内并与收紧圈17内原有铁芯冲片45之间形成一热气流汇集空腔，空腔内的热气流通过收紧圈17上部的热气流排放口44排出并实现对铁芯冲片45内孔和 空腔部位的加热，从而使得位于空腔上下位置的铁芯冲片45上的催化剂和主胶料同时受热，落料完成后受热的催化剂和主胶料相互接触、压合，由此实现了上下相邻的两个铁芯冲片45之间胶料的直接加热，从而提高了胶料固化的速度。另外，在热气流上升的过程中，收紧圈17内的铁芯冲片45也同时被热气流所加热从而起到对胶料的间接加热。与现有技术中采用磁感应加热铁芯冲片实现胶料间接加热方式相比，本实施例中的热气流加热装置41具有对胶料的直接加热和间接加热的双重加热效果，因此其对胶料的加热速度更快、胶料固化的效果更好。
根据铁芯冲片45粘合强度的需要，本实施例中的激光加热头40和热气流加热装置41可以只使用其中的一种，也可以联合使用；在环境温度较高或铁芯冲片45的粘合强度要求相对较低时也可以不使用。
本实施例中，根据每组铁芯的叠层数量，在料带1冲裁过程中，相邻每组铁芯之间设置一片铁芯冲片45为不施加胶料的无胶料铁芯冲片，无胶料铁芯冲片在进入收紧圈17内时可将上下相邻的两组叠装完成的铁芯隔开。
本实施例中，所述伺服电缸18的两侧分置有铁芯卸料气动推杆46和皮带输送机47，一组铁芯叠装完成后，由铁芯卸料气动推杆46将坐落在顶紧托盘20上的铁芯推送至皮带输送机47上，然后由皮带输送机47将铁芯输送至后续工序设备上。
实施例2：
一种电机定转子铁芯的点胶层叠工艺，包括如下步骤：
(1)点胶工位设置：在电机定转子铁芯冲压级进模2上按照料带1的移动方向依次设置冲压工位3、第一组分胶料点胶工位4、第二组分胶料点胶工位5和落料工位6，所述落料工位6的下方设置有铁芯冲片自动叠装机构7，且所述第一组分胶料点胶工位4和第二组分胶料点胶工位5中的其中一个胶料点胶工位位于料带1的上方位置、其中另一个胶料点胶工位位于料带1的下方位置；其中，在所述第一组分胶料点胶工位4上设置有用于将第一组分胶料分散布点至料带1一面的第一组分胶料点胶装置8，在所述第二组分胶料点胶工位5上设置有用于将第二组分胶料分散布点至料带1另一面的第二组分胶料点胶装置9，且通过所述第一组分胶料点胶装置8布置在所述料带1 一面的各胶料点位置10与通过所述第二组分胶料点胶装置9布置在所述料带1另一面的各胶料点位置10在上下方向相互正对设置；其中，在所述第一组分胶料和所述第二组分胶料中，其中一个组分的胶料为主胶料、其中另一个组分的胶料为用于促进所述主胶料固化的催化剂；
(2)冲压：料带1在电机定转子铁芯冲压级进模2上向前步进式移动，并依次通过各冲压工位3上的冲压模进行齿槽、通孔和内轮廓的冲压；
(3)点胶：料带继续向前移动，先后到达所述第一组分胶料点胶工位4和第二组分胶料点胶工位5，并通过第一组分胶料点胶装置8、第二组分胶料点胶装置9先后对料带1的上下两面进行第一组分胶料和所述第二组分胶料的点胶；
(4)落料：料带继续向前移动至落料工位6，再通过落料工位6上的落料模将料带1上的铁芯冲片45进行落料；
(5)叠装：在落料工位6上的落料模作用下，所述铁芯冲片45被压入落料工位6下方的收紧圈17内，并使得进入到收紧圈17内的上下相邻的两个铁芯冲片45叠合在一起，两个铁芯冲片45之间的主胶料与催化剂因相互接触和压合而快速固化，从而叠合在一起；
其中，所述步骤(5)的叠装工序的叠装工步如下：
S1、顶紧托盘位置的初始设定：收紧圈17内部空置时，通过调整伺服电缸18的伸缩杆19的上下位置，使得顶紧托盘20设置在预定高度位置上，所述顶紧托盘20的预定高度位置要保证第一片铁芯冲片落料到收紧圈17内后其所述顶紧托盘20与铁芯冲片弹性浮动接触；
S2、顶紧托盘位置的精确预置：收紧圈17内落料完第一片铁芯冲片后，通过伺服电缸18伸缩杆19上端的距离感应传感器49监测顶紧托盘20下端面与弹簧座圈52上端面的距离，然后调整伺服电缸18伸缩杆19的上下位置，使得顶紧托盘20下端面与弹簧座圈52上端面之间的距离正好等于一个铁芯冲片45厚度的距离；
S3、收紧圈的转位设置：根据铁芯冲片45上槽体或孔的等分情况，通过旋转式铁芯叠片压装模16将收紧圈17转过一定的等分角度；
S4、落料层叠：在落料工位上落料模的冲压力作用下，待落料的铁芯冲片45挤压进入所述自动叠装模16的收紧圈17中并与收紧圈17中前一个落料的铁芯冲片45相接触，从而带动收紧圈17中最下面的铁芯冲片45一起向下移动，进而同步推动浮动支撑在最下面铁芯冲片45上的顶紧托盘20向下移动而使得顶紧托盘20的下端面与弹簧座圈52上端面相接触，顶紧托盘20向下移动至与弹簧座圈52接触时所经过的位移量正好等于一个铁芯冲片45厚度的距离，从而使得相邻两铁芯冲片45的间隙消除，实现精确层叠；下一次落料层叠前，以距离感应传感器49测得的数据为基准，伺服电缸18的伸缩杆19主动下移一个铁芯冲片45厚度的距离，同时通过旋转式铁芯叠片压装模16将收紧圈17转过一定的等分角度，从而为下一次的落料层叠做好准备。
作为本实施例的一种电机定转子铁芯的点胶层叠工艺的进一步改进，在所述步骤(1)的点胶工位设置工序中，还在所述冲压工位3之后与所述第一组分胶料点胶工位4之前设置有用于在点胶作业前对料带1上的各胶料点位置10进行清洗的清洗工位30，所述清洗工位30上设置有利用负压吸附原理实现各胶料点位置清洗的负压清洗装置31，且在所述负压清洗装置31的负压吸附通道上还设置有对于各胶料点位置表面进行非接触局部预热的激光加热头40；在所述落料工位6下方的伺服电缸18伸缩杆19上还设置有用于对层叠过程中的铁芯冲片45和胶料进行辅助加热以实现胶料加速固化的热气流加热装置41；在所述步骤(2)的冲压工序之后与所述步骤(3)的点胶工序之前，预先通过所述负压清洗装置31对料带1上的各胶料点位置10进行清洗和激光加热后再进行所述步骤(3)的点胶作业；在所述步骤(5)的叠装工序中，还开启所述热气流加热装置41对层叠过程中的铁芯冲片45和胶料进行辅助加热以实现胶料加速固化。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种采用点胶叠层的电机定转子铁芯冲压级进模，其特征在于，包括按照料带的移动方向依次设置在电机定转子铁芯冲压级进模上的冲压工位、第一组分胶料点胶工位、第二组分胶料点胶工位和落料工位，所述落料工位的下方设置有铁芯冲片自动叠装机构，且所述第一组分胶料点胶工位和第二组分胶料点胶工位中的其中一个胶料点胶工位位于料带的上方位置、其中另一个胶料点胶工位位于料带的下方位置；其中，在所述第一组分胶料点胶工位上设置有用于将第一组分胶料分散布点至料带一面的第一组分胶料点胶装置，在所述第二组分胶料点胶工位上设置有用于将第二组分胶料分散布点至料带另一面的第二组分胶料点胶装置，且通过所述第一组分胶料点胶装置布置在所述料带一面的各胶料点位置与通过所述第二组分胶料点胶装置布置在所述料带另一面的各胶料点位置在上下方向相互正对设置；其中，所述铁芯冲片自动叠装机构包括自动叠装模，所述自动叠装模为旋转式铁芯叠片压装模；所述旋转式铁芯叠片压装模上设置有与铁芯冲片外缘过盈配合的收紧圈，所述收紧圈通过伺服电机的驱动实现所述收紧圈回转角度的可变化；所述铁芯冲片自动叠装机构还包括设置在所述自动叠装模的下方用于用于对旋转式铁芯叠片压装模内的铁芯施加顶托力的伺服排压系统，所述伺服排压系统包括设置在所述收紧圈下方的伺服电缸、设置在所述伺服电缸的伸缩杆上端的可回转浮动感应式顶托组件，所述可回转浮动感应式顶托组件包括转动设置在所述伺服电缸的伸缩杆上且可上下浮动一定间距的顶紧托盘、设置在所述伺服电缸的伸缩杆上且位于所述顶紧托盘下方的用于监测所述顶紧托盘上下浮动位置的位移传感器。
  2. 根据权利要求1所述的一种采用点胶叠层的电机定转子铁芯冲压级进模，其特征在于，所述第一组分胶料为粘度相对较大的主胶料，所述第二组分胶料为粘度相对较小的催化剂；且作为主胶料点胶工位 的所述第一组分胶料点胶工位在所述电机定转子铁芯冲压级进模上位于所述料带的下方位置，作为催化剂点胶工位的所述第二组分胶料点胶工位在所述电机定转子铁芯冲压级进模上位于所述料带的上方位置。
  3. 根据权利要求1所述的一种采用点胶叠层的电机定转子铁芯冲压级进模，其特征在于，所述可回转浮动感应式顶托组件还包括固定在所述伺服电缸的伸缩杆上端的支撑座圈、设置在所述支撑座圈上的中心定位通孔，所述顶紧托盘的下端设置有定位轴，所述顶紧托盘通过所述定位轴转动设置在所述支撑座圈的中心定位通孔上；所述支撑座圈的上部设置有平面推力轴承，所述顶紧托盘的定位轴上还外套有弹簧座圈，所述弹簧座圈位于所述顶紧托盘的下端面与所述平面推力轴承的上端面之间，且在所述顶紧托盘与所述弹簧座圈之间设置有用于浮动顶紧所述顶紧托盘的压缩弹簧；落料时，在落料工位上落料模的作用下，各铁芯冲片依次挤压进入所述自动叠装模的收紧圈中实现各铁芯冲片的层叠，位于所述收紧圈中上下相邻的铁芯冲片之间各位置点的主胶料与催化剂相互正对接触，使得主胶料加速凝固，从而将上下相邻的铁芯冲片粘结牢固而形成铁芯；铁芯冲片层叠时，通过所述伺服排压系统实现铁芯冲片的精确层叠，从而形成总高度尺寸符合要求的铁芯。
  4. 根据权利要求3所述的一种采用点胶叠层的电机定转子铁芯冲压级进模，其特征在于，所述伺服排压系统实现铁芯冲片精确层叠的方法如下：
    S1、顶紧托盘位置的初始设定：收紧圈内部空置时，通过调整伺服电缸的伸缩杆的上下位置，使得顶紧托盘设置在预定高度位置上，所述顶紧托盘的预定高度位置要保证第一片铁芯冲片落料到收紧圈内后其所述顶紧托盘与铁芯冲片弹性浮动接触；
    S2、顶紧托盘位置的精确预置：收紧圈内落料完第一片铁芯冲片 后，通过伺服电缸伸缩杆上端的距离感应传感器监测顶紧托盘下端面与弹簧座圈上端面的距离，然后调整伺服电缸伸缩杆的上下位置，使得顶紧托盘下端面与弹簧座圈上端面之间的距离正好等于一个铁芯冲片厚度的距离；
    S3、收紧圈的转位设置：根据铁芯冲片上槽体或孔的等分情况，通过旋转式铁芯叠片压装模将包含有收紧圈的回转体转过一定的等分角度；
    S4、落料层叠：在落料工位上落料模的冲压力作用下，待落料的铁芯冲片挤压进入所述自动叠装模的收紧圈中并与收紧圈中前一个落料的铁芯冲片相接触，从而带动收紧圈中最下面的铁芯冲片一起向下移动，进而同步推动浮动支撑在最下面铁芯冲片上的顶紧托盘向下移动而使得顶紧托盘的下端面与弹簧座圈上端面相接触，顶紧托盘向下移动至与弹簧座圈接触时所经过的位移量正好等于一个铁芯冲片厚度的距离，从而使得相邻两铁芯冲片的间隙消除，实现精确层叠；下一次落料层叠前，以距离感应传感器测得的数据为基准，伺服电缸的伸缩杆主动下移一个铁芯冲片厚度的距离，同时通过旋转式铁芯叠片压装模将包含有收紧圈的回转体转过一定的等分角度，从而为下一次的落料层叠做好准备。
  5. 根据权利要求1所述的一种采用点胶叠层的电机定转子铁芯冲压级进模，其特征在于，所述第一组分胶料点胶装置、第二组分胶料点胶装置分别包括点胶盘和分散布置在所述点胶盘上的若干数量的点胶喷头本体，所述点胶喷头本体上设置有进胶通道，所述进胶通道的一端为点胶输出口，所述进胶通道的另一端连接有进胶管接头，所述进胶管接头通过进胶管路连接供胶系统；所述点胶喷头本体上还设置有清洗通道，所述清洗通道的一端与所述进胶通道相连通，所述清洗通道的一端连接有清洗管接头，所述清洗管接头通过清洗管路连接清洗液供给系统；在所述进胶管路上设置有胶水电磁阀，在所述清洗 管路上设置有清洗液电磁阀；其中，所述供胶系统包括连接所述进胶管路的伺服计量胶水泵。
  6. 根据权利要求1所述的一种采用点胶叠层的电机定转子铁芯冲压级进模，其特征在于，在所述冲压工位之后与所述第一组分胶料点胶工位之前还设置有用于在点胶作业前对料带上的各胶料点位置进行清洗的清洗工位，所述清洗工位上设置有利用负压吸附原理实现各胶料点位置清洗的负压清洗装置；所述负压清洗装置包括清洗盘、分散布置在所述清洗盘上的若干数量的清洗管组件，所述清洗盘的内部设置有负压腔，所述清洗管组件包括相互同轴套装的外清洗管和内清洗管，所述内清洗管的前端端面相对于所述外清洗管的前端端面设置有一定的缩进量，所述外清洗管的后端部位和所述内清洗管的后端部位分别固定在所述清洗盘上，且在外清洗管和内清洗管中，其中的一个清洗管的后端内孔部位连通所述清洗盘上的负压腔、其中的另一个清洗管的后端内孔部位与外界空气相连通。
  7. 根据权利要求6所述的一种采用点胶叠层的电机定转子铁芯冲压级进模，其特征在于，在所述内清洗管的后端内孔部位还设置有用于对料带上的各胶料点位置表面进行非接触局部预热的激光加热头；所述外清洗管的前端端面上设置有橡胶密封圈，所述清洗盘上的负压腔通过负压管路连接至抽真空装置；在所述外清洗管和内清洗管中，其与外界空气相连通的清洗管的后端内孔部位的外围设置有围住所述内孔部位的空气滤清器。
  8. 根据权利要求4所述的一种采用点胶叠层的电机定转子铁芯冲压级进模，其特征在于，在所述伺服排压系统的伺服电缸的可回转浮动感应式顶托组件上还设置有用于对层叠过程中的铁芯冲片和胶料进行辅助加热以实现胶料加速固化的热气流加热装置，所述热气流加热装置包括沿轴向设置在所述顶紧托盘上端中间部位的安装孔、设置在所述安装孔内的直柄式加热风机，所述直柄式加热风机的热风出风 口朝上设置，所述顶紧托盘的定位轴上设置有连通所述安装孔的进风通道，所述支撑座圈的中心定位通孔上设置有进风环形槽，所述支撑座圈的外缘表面设置有与所述中心定位通孔相连通的进风通道，且所述支撑座圈的进风通道、支撑座圈的进风环形槽、顶紧托盘定位轴上的进风通道依次连通；在所述自动叠装模的收紧圈的上端部位沿周向还设置有若干数量与所述收紧圈内孔相连通的热气流排放口。
  9. 一种电机定转子铁芯的点胶层叠工艺，其特征在于，包括如下步骤：
    (1)点胶工位设置：在电机定转子铁芯冲压级进模上按照料带的移动方向依次设置冲压工位、第一组分胶料点胶工位、第二组分胶料点胶工位和落料工位，所述落料工位的下方设置有铁芯冲片自动叠装机构，且所述第一组分胶料点胶工位和第二组分胶料点胶工位中的其中一个胶料点胶工位位于料带的上方位置、其中另一个胶料点胶工位位于料带的下方位置；其中，在所述第一组分胶料点胶工位上设置有用于将第一组分胶料分散布点至料带一面的第一组分胶料点胶装置，在所述第二组分胶料点胶工位上设置有用于将第二组分胶料分散布点至料带另一面的第二组分胶料点胶装置，且通过所述第一组分胶料点胶装置布置在所述料带一面的各胶料点位置与通过所述第二组分胶料点胶装置布置在所述料带另一面的各胶料点位置在上下方向相互正对设置；其中，在所述第一组分胶料和所述第二组分胶料中，其中一个组分的胶料为主胶料、其中另一个组分的胶料为用于促进所述主胶料固化的催化剂；
    (2)冲压：料带在电机定转子铁芯冲压级进模上向前步进式移动，并依次通过各冲压工位上的冲压模进行齿槽、通孔和内轮廓的冲压；
    (3)点胶：料带继续向前移动，先后到达所述第一组分胶料点胶工位和第二组分胶料点胶工位，并通过第一组分胶料点胶装置、第 二组分胶料点胶装置先后对料带的上下两面进行第一组分胶料和所述第二组分胶料的点胶；
    (4)落料：料带继续向前移动至落料工位，再通过落料工位上的落料模将料带上的铁芯冲片进行落料；
    (5)叠装：在落料工位上的落料模作用下，所述铁芯冲片被压入落料工位下方的收紧圈内，并使得进入到收紧圈内的上下相邻的两个铁芯冲片叠合在一起，两个铁芯冲片之间的主胶料与催化剂因相互接触和压合而快速固化，从而叠合在一起；
    其中，所述步骤(5)的叠装工序的叠装工步如下：
    S1、顶紧托盘位置的初始设定：收紧圈内部空置时，通过调整伺服电缸的伸缩杆的上下位置，使得顶紧托盘设置在预定高度位置上，所述顶紧托盘的预定高度位置要保证第一片铁芯冲片落料到收紧圈内后其所述顶紧托盘与铁芯冲片弹性浮动接触；
    S2、顶紧托盘位置的精确预置：收紧圈内落料完第一片铁芯冲片后，通过伺服电缸伸缩杆上端的距离感应传感器监测顶紧托盘下端面与弹簧座圈上端面的距离，然后调整伺服电缸伸缩杆的上下位置，使得顶紧托盘下端面与弹簧座圈上端面之间的距离正好等于一个铁芯冲片厚度的距离；
    S3、收紧圈的转位设置：根据铁芯冲片上槽体或孔的等分情况，通过旋转式铁芯叠片压装模将包含有收紧圈的回转体转过一定的等分角度；
    S4、落料层叠：在落料工位上落料模的冲压力作用下，待落料的铁芯冲片挤压进入所述自动叠装模的收紧圈中并与收紧圈中前一个落料的铁芯冲片相接触，从而带动收紧圈中最下面的铁芯冲片一起向下移动，进而同步推动浮动支撑在最下面铁芯冲片上的顶紧托盘向下移动而使得顶紧托盘的下端面与弹簧座圈上端面相接触，顶紧托盘向下移动至与弹簧座圈接触时所经过的位移量正好等于一个铁芯冲片 厚度的距离，从而使得相邻两铁芯冲片的间隙消除，实现精确层叠；下一次落料层叠前，以距离感应传感器测得的数据为基准，伺服电缸的伸缩杆主动下移一个铁芯冲片厚度的距离，同时通过旋转式铁芯叠片压装模将包含有收紧圈的回转体转过一定的等分角度，从而为下一次的落料层叠做好准备。
  10. 根据权利要求9所述的一种电机定转子铁芯的点胶层叠工艺，其特征在于，在所述步骤(1)的点胶工位设置工序中，还在所述冲压工位之后与所述第一组分胶料点胶工位之前设置有用于在点胶作业前对料带上的各胶料点位置进行清洗的清洗工位，所述清洗工位上设置有利用负压吸附原理实现各胶料点位置清洗的负压清洗装置，且在所述负压清洗装置的负压吸附通道上还设置有对于各胶料点位置表面进行非接触局部预热的激光加热头；在所述落料工位下方的伺服电缸伸缩杆上还设置有用于对层叠过程中的铁芯冲片和胶料进行辅助加热以实现胶料加速固化的热气流加热装置；在所述步骤(2)的冲压工序之后与所述步骤(3)的点胶工序之前，预先通过所述负压清洗装置对料带上的各胶料点位置进行清洗和激光加热后再进行所述步骤(3)的点胶作业；在所述步骤(5)的叠装工序中，还开启所述热气流加热装置对层叠过程中的铁芯冲片和胶料进行辅助加热以实现胶料加速固化。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006026735A (ja) * 2004-06-15 2006-02-02 Mitsui High Tec Inc 積層鉄心の製造方法及び製造装置
CN107533907A (zh) * 2015-06-10 2018-01-02 Bmc股份有限公司 粘合式层叠铁芯制造装置
CN112719100A (zh) * 2020-12-28 2021-04-30 江阴华新电器科技股份有限公司 一种旋转式铁芯叠片压装模具及压装方法
CN113346689A (zh) * 2021-08-06 2021-09-03 宁波震裕科技股份有限公司 模内快速固化粘接的新能源汽车电机粘胶铁芯制造工艺
CN114785060A (zh) * 2022-03-09 2022-07-22 江阴华新精密科技股份有限公司 采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3569440B2 (ja) * 1998-04-21 2004-09-22 新日本製鐵株式会社 鉄芯製造方法とその方法に適した鉄芯製造装置
JP3822020B2 (ja) * 2000-05-16 2006-09-13 株式会社コアテック 積層コアの製造装置
JP2003257761A (ja) * 2002-03-06 2003-09-12 Matsushita Electric Ind Co Ltd 積層体の製造方法と製造装置
JP5581903B2 (ja) * 2010-08-31 2014-09-03 トヨタ紡織株式会社 転積装置
JP5085746B2 (ja) * 2011-01-25 2012-11-28 黒田精工株式会社 金属薄板積層体の製造装置
KR101570381B1 (ko) * 2014-06-10 2015-11-27 주식회사 포스코티엠씨 채널 도관을 갖는 접착제 도포유닛 및 접착식 적층 코어부재 제조장치
CN106787487B (zh) * 2016-12-15 2020-08-21 宁波震裕科技股份有限公司 一种模内电机铁芯自动粘胶叠层装置
DE102018110951A1 (de) * 2017-11-03 2019-05-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zum klebtechnischen Verbinden von Elektroblechen und Elektrobleche hergestellt nach einem entsprechenden Verfahren
CN109079031B (zh) * 2018-09-11 2024-04-02 江阴华新精密科技股份有限公司 一种用于矽钢片级进模的模内铆压装置及铆压方法
CN113245119B (zh) * 2021-06-25 2021-11-02 广东博硕涂装技术有限公司 一种喷胶机器人的喷枪清洗结构及其清洗方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006026735A (ja) * 2004-06-15 2006-02-02 Mitsui High Tec Inc 積層鉄心の製造方法及び製造装置
CN107533907A (zh) * 2015-06-10 2018-01-02 Bmc股份有限公司 粘合式层叠铁芯制造装置
CN112719100A (zh) * 2020-12-28 2021-04-30 江阴华新电器科技股份有限公司 一种旋转式铁芯叠片压装模具及压装方法
CN113346689A (zh) * 2021-08-06 2021-09-03 宁波震裕科技股份有限公司 模内快速固化粘接的新能源汽车电机粘胶铁芯制造工艺
CN114785060A (zh) * 2022-03-09 2022-07-22 江阴华新精密科技股份有限公司 采用点胶叠层的电机定转子铁芯冲压级进模及点胶工艺

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