WO2023082725A1 - Laser welding apparatus for rotor core - Google Patents

Laser welding apparatus for rotor core Download PDF

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Publication number
WO2023082725A1
WO2023082725A1 PCT/CN2022/109564 CN2022109564W WO2023082725A1 WO 2023082725 A1 WO2023082725 A1 WO 2023082725A1 CN 2022109564 W CN2022109564 W CN 2022109564W WO 2023082725 A1 WO2023082725 A1 WO 2023082725A1
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WO
WIPO (PCT)
Prior art keywords
rotor core
mandrel
laser welding
workbench
rotor
Prior art date
Application number
PCT/CN2022/109564
Other languages
French (fr)
Chinese (zh)
Inventor
杜姗
卢君剑
陈高翔
余建国
Original Assignee
浙江联宜电机有限公司
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 浙江联宜电机有限公司 filed Critical 浙江联宜电机有限公司
Priority to DE112022003718.0T priority Critical patent/DE112022003718T5/en
Publication of WO2023082725A1 publication Critical patent/WO2023082725A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • 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

Definitions

  • the invention relates to a rotor iron core laser welding equipment, which belongs to the technical field of rotor iron core production.
  • the object of the present invention is to provide a rotor iron core laser welding equipment, which solves the problems of low manual welding efficiency, inability to produce in batches, and low precision control in the prior art.
  • a rotor iron core laser welding equipment including a workbench, a vertically arranged mandrel is arranged above the workbench, and a There are partitions arranged at intervals up and down, above each partition there is placed a set of rotor core punches to be welded, and above the uppermost rotor core punch set on the mandrel there is a set for pressing each
  • the pressure plate for group rotor core punching one side of the mandrel is provided with a welding device for welding each rotor core punching group; Carry out positioning and layering to ensure that the welds of each rotor core punch are consistent when they are combined, to avoid weld misalignment and affect the smooth welding of the welding device, and the setting of the pressure plate can compress each rotor core punch, In order to ensure that the height of each rotor core punching group after welding meets the regulations, avoid the low flatness of the
  • first annular protrusions are respectively provided at the edge of the top surface and the edge of the bottom surface of the separator; the arrangement of the above-mentioned first annular protrusion enables the separator to only press against the edge of the rotor iron core punching piece. Tight, can control the height of each rotor core punching group, to avoid dispersing the down force when the partition plate and the rotor core punching face to face contact, resulting in inconsistent heights of each rotor core punching group.
  • the side wall of the partition is provided with several vertical first slots corresponding to the welding seams of the rotor iron core punching group;
  • the position of the welding seam of the sheet group corresponds, so that the welding spot can be avoided during welding, and the welding quality of the rotor iron core punching plate and the partition plate will be welded together to avoid excessive welding during welding, which will affect the welding quality.
  • the side wall of the mandrel is provided with a keyway along the axial direction of the mandrel, and a positioning pin is provided in the keyway, and one side of the positioning pin protrudes from the outer circumferential surface of the mandrel, and the
  • the middle part of the partition is provided with a positioning hole that matches the positioning pin and the mandrel; the setting of the above keyway and positioning pin can increase the positioning effect on the mandrel, so that when the partition is sleeved on the mandrel, the positioning can be realized through the positioning pin function, avoiding the deflection of the partition and affecting the correspondence between the first slot and the weld seam.
  • a second annular protrusion is provided at the edge of the bottom surface of the pressing plate, and a plurality of vertical second slots corresponding to the welding seams of the rotor iron core punching set are provided on the side wall of the pressing plate; the above The setting of the second annular convex part enables the pressure plate to press against the edge of the rotor core punching piece, avoiding the dispersion of the downward force when the pressure plate and the rotor core punching piece are in surface-to-face contact, resulting in the height of the top rotor core punching piece group.
  • the second slot is set to correspond to the welding seam position of the rotor core punching set, so that the welding spots can be avoided during welding, and excessive welding can be avoided during welding.
  • the rotor iron core punching piece and the pressure plate cause the rotor iron core punching piece and the pressure plate to be welded together.
  • the top of the mandrel is provided with a positioning shaft protruding from the top of the mandrel corresponding to the axis of the mandrel, and the middle part of the pressure plate is provided with a guide hole corresponding to the positioning shaft; the above-mentioned positioning shaft can guide The hole forms a guiding function to ensure the position stability of the pressing plate when it is pressed down, and avoid the deviation of the pressing plate and affect the stability of the pressing.
  • the vertical spacing between the bottom surface of the pressing plate and the top of the mandrel is less than the vertical spacing between the top of the positioning shaft and the top of the pressing plate; the vertical spacing between the bottom of the pressing plate and the top of the mandrel is less than
  • the vertical distance between the top of the positioning shaft and the top surface of the pressure plate is set so that when the pressure plate is pressed down, the top of the positioning shaft is prevented from protruding from the top surface of the pressure plate, so that the positioning shaft and the pressure head are squeezed to avoid causing pressure.
  • the damage of the head or the positioning shaft ensures the stability of the pressure head.
  • a chuck for fixing the mandrel is provided on the workbench, and a servo motor for driving the chuck to rotate is provided at the bottom of the workbench; It is clamped and fixed, and at the same time, the rotor iron core punching group can be controlled to rotate at a certain angle through the mandrel during welding, so as to automatically weld the weld seam on the periphery of the rotor iron core.
  • a pressure head is provided above the pressing plate, a reinforcing plate is provided on the top surface of the workbench corresponding to the side of the mandrel, a supporting plate is provided at the top of the reinforcing plate, and a supporting plate is provided on the top of the supporting plate.
  • the bottom of the workbench is provided with a traversing mechanism for controlling the traversing of the workbench; the setting of the above-mentioned traversing mechanism is to adjust the position of the mandrel according to the actual site, so as to automatically approach the welding device, and pass the welding device Welding starts automatically.
  • the present invention has the characteristics of automatic batch welding of rotor cores, high welding efficiency, high control precision, and high welding quality.
  • Fig. 1 is a structural schematic diagram of the present invention.
  • FIG. 2 is an enlarged view of the structure at A in FIG. 1 .
  • Fig. 3 is a schematic structural diagram of the separator in Fig. 1 .
  • Fig. 4 is a cross-sectional view of the structure of the separator in Fig. 1 .
  • Fig. 5 is a top structural view of the mandrel in Fig. 1 .
  • a rotor iron core laser welding equipment includes a workbench 1, a mandrel 2 arranged vertically above the workbench 1, and a partition board arranged at intervals up and down on the mandrel 2 3.
  • a set of rotor core punches to be welded is placed above each partition 3, and a pressure plate for pressing each set of rotor core punches is provided above the uppermost rotor core punch set on the mandrel 2.
  • One side of the mandrel 2 is provided with a welding device 6 for welding each rotor core punching group.
  • a chuck 11 for fixing the mandrel 2 is arranged on the workbench 1, a servo motor 12 for driving the rotation of the chuck 11 is arranged at the bottom of the workbench 1, an indenter 5 is arranged above the pressure plate 4, and the top of the workbench 1
  • a reinforcement plate 13 is provided on the side corresponding to the mandrel 2
  • a support plate 14 is provided on the top of the reinforcement plate 13
  • a cylinder 15 is provided on the top surface of the support plate 14, and the output rod of the cylinder 15 passes through the support plate downwards.
  • 14 is connected with the pressure head 5, and the bottom of the workbench 1 is provided with a traverse mechanism 7 for controlling the traverse of the workbench 1.
  • the above-mentioned welding device is a laser welder, which is an existing product on the market and is an existing technology, so it will not be repeated here.
  • the above-mentioned rotor core is formed by overlapping and welding a plurality of rotor core punches, and the welding process requires iron
  • the core punches are closely arranged, and the height of the iron core meets the requirements; the above-mentioned servo motor, pressure head, cylinder and traverse mechanism are all existing products on the market, which are prior art and will not be repeated here.
  • the welding device performs batch laser welding on each rotor core punching group.
  • the top edge and the bottom edge of the partition 3 are respectively provided with a first annular protrusion 31, and the side wall of the partition 3 is provided with a number of welding seams with the rotor core punching group.
  • the side wall of the mandrel 2 is provided with a keyway 21 arranged along the axial direction of the mandrel 2, and a positioning pin 22 is arranged in the keyway 21, and one side of the positioning pin 22 protrudes from the
  • the middle part of the partition plate 3 is provided with a positioning hole 33 which is matched with the positioning pin 22 and the mandrel 2
  • the edge of the bottom surface of the pressing plate 4 is provided with a second annular convex portion 41, and on the side wall of the pressing plate 4
  • the top of the mandrel 2 is provided with a positioning shaft 23 protruding from the top of the mandrel 2 corresponding to the axis of the mandrel 2, and the middle part of the pressure plate 4 is provided with a guide hole 43 corresponding to the positioning shaft 23.
  • the vertical distance between the bottom surface of the pressing plate 4 and the top end of the mandrel 2 is smaller than the vertical distance between the top end of the positioning shaft 23 and the top surface of the pressing plate 4 .
  • the positioning holes of the above-mentioned partitions are all matched with the mandrels inserted with the positioning pins, which can limit the horizontal rotation of the partitions. First insert the positioning pins into the key grooves, then insert the partitions into the mandrels, and punch the rotor core.
  • the first slot of the separator and the second slot of the pressure plate are vertically connected with the welding place of the rotor iron core punching group, so as to leave extra space for the solder joints , to avoid damage to the tooling caused by solder joints during welding;
  • the positioning shaft is fixed in the guide hole through threads, and the pressure plate can also be screwed into the guide hole and mandrel through the screw, so that the pressure plate can be driven down by the rotation of the screw to realize the rotor iron Compression of core punches.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

A laser welding apparatus for a rotor core. The laser welding apparatus comprises a workbench (1), wherein a vertically arranged core shaft (2) is arranged above the workbench, the core shaft is sleeved with partition plates (3) that are vertically spaced, a rotor core punching set to be welded is placed above each partition plate, a pressing plate (4) for pressing each rotor core punching set is arranged above the rotor core punching set that is located at the uppermost end of the core shaft, and one side of the core shaft is provided with a welding device (6) for welding each rotor core punching set. The welding apparatus can automatically weld rotor cores in batches, and has a high welding efficiency, high control accuracy and high welding quality.

Description

转子铁芯激光焊接设备Rotor core laser welding equipment 技术领域technical field
本发明涉及一种转子铁芯激光焊接设备，属于转子铁芯生产的技术领域。The invention relates to a rotor iron core laser welding equipment, which belongs to the technical field of rotor iron core production.
背景技术Background technique
随着我国新能源汽车的快速发展，对新能源汽车零部件的要求也越来越高，转子铁芯的质量要求也愈来愈高，在保证生产质量的前提下，如何提升生产效率，满足产品交付是一个亟待解决的问题，目前转子铁芯焊接为专业焊接员工采用原始方法手持焊枪对每条焊缝进行焊接且每次只能焊接一条焊缝，另需要配备手动焊接工装，工装为多条螺栓紧固，转子铁芯平面度及平行度等形位公差无法得到有效的控制；手工焊接的生产效率也比较低，无法满足批量生产的要求。With the rapid development of new energy vehicles in my country, the requirements for new energy vehicle parts are getting higher and higher, and the quality requirements for rotor cores are also getting higher and higher. On the premise of ensuring production quality, how to improve production efficiency and meet Product delivery is an urgent problem to be solved. At present, professional welding workers use the original method to weld each weld seam with a hand-held welding torch, and only one weld seam can be welded at a time. In addition, manual welding tools are required, and there are many tools The bolts are fastened, and the shape and position tolerances such as the flatness and parallelism of the rotor core cannot be effectively controlled; the production efficiency of manual welding is also relatively low, which cannot meet the requirements of mass production.
技术问题technical problem
本发明目的在于提供一种转子铁芯激光焊接设备，解决了现有技术存在的手工焊接效率低，无法批量生产，且精度控制力低等问题。The object of the present invention is to provide a rotor iron core laser welding equipment, which solves the problems of low manual welding efficiency, inability to produce in batches, and low precision control in the prior art.
技术解决方案technical solution
本发明的上述技术目的主要是通过以下技术方案解决的：一种转子铁芯激光焊接设备，包括工作台，所述工作台的上方设有竖向设置的芯轴，所述芯轴上套设有上下间隔设置的隔板，每个所述隔板的上方均放置有待焊接的转子铁芯冲片组，所述芯轴上位于最上端的转子铁芯冲片组的上方设有用于压紧各组转子铁芯冲片的压板，所述芯轴的一侧设有用于对各个转子铁芯冲片组焊接的焊接装置；上述芯轴和隔板的配合，以便于对各个转子铁芯冲片进行定位和分层，以保证各个转子铁芯冲片组合起来时焊缝保持一致，避免焊缝错位而影响焊接装置的顺利焊接，而压板的设置，可对各个转子铁芯冲片压紧，以保证各个转子铁芯冲片组焊接后的高度符合规定，避免转子铁芯冲片的平面度较低而影响转子铁芯的高度一致性，从而有效提高了焊接时对转子铁芯的控制精度，同时可通过隔板的分层，使得该芯轴上可套设且定位多组转子铁芯冲片组，从而可同时进行多组转子铁芯冲片组的焊接，实现了转子铁芯焊接的批量化，有效提高了转子铁芯的焊接效率。The above-mentioned technical purpose of the present invention is mainly solved by the following technical solutions: a rotor iron core laser welding equipment, including a workbench, a vertically arranged mandrel is arranged above the workbench, and a There are partitions arranged at intervals up and down, above each partition there is placed a set of rotor core punches to be welded, and above the uppermost rotor core punch set on the mandrel there is a set for pressing each The pressure plate for group rotor core punching, one side of the mandrel is provided with a welding device for welding each rotor core punching group; Carry out positioning and layering to ensure that the welds of each rotor core punch are consistent when they are combined, to avoid weld misalignment and affect the smooth welding of the welding device, and the setting of the pressure plate can compress each rotor core punch, In order to ensure that the height of each rotor core punching group after welding meets the regulations, avoid the low flatness of the rotor core punching and affect the height consistency of the rotor core, thereby effectively improving the control accuracy of the rotor core during welding , at the same time, through the layering of the partition, the mandrel can be sleeved and positioned with multiple sets of rotor core punching sets, so that multiple sets of rotor core punching sets can be welded at the same time, realizing the rotor core welding The mass production has effectively improved the welding efficiency of the rotor core.
作为优选，所述隔板的顶面边缘处和底面边缘处分别设有第一环形凸部；上述第一环形凸部的设置，使得该隔板可仅对转子铁芯冲片的边缘处压紧，可对各个转子铁芯冲片组的高度进行压紧控制，避免隔板和转子铁芯冲片面面接触时分散下压力，而导致各个转子铁芯冲片组的高度不一致。As a preference, first annular protrusions are respectively provided at the edge of the top surface and the edge of the bottom surface of the separator; the arrangement of the above-mentioned first annular protrusion enables the separator to only press against the edge of the rotor iron core punching piece. Tight, can control the height of each rotor core punching group, to avoid dispersing the down force when the partition plate and the rotor core punching face to face contact, resulting in inconsistent heights of each rotor core punching group.
作为优选，所述隔板的侧壁上设有若干与转子铁芯冲片组的焊缝相对应的竖向的第一开槽；上述第一开槽的设置，以便于与转子铁芯冲片组的焊缝位置对应，从而可以在焊接时对焊点进行避让，避免焊接时焊接过度而导致转子铁芯冲片与隔板焊接在一起，影响焊接质量。As a preference, the side wall of the partition is provided with several vertical first slots corresponding to the welding seams of the rotor iron core punching group; The position of the welding seam of the sheet group corresponds, so that the welding spot can be avoided during welding, and the welding quality of the rotor iron core punching plate and the partition plate will be welded together to avoid excessive welding during welding, which will affect the welding quality.
作为优选，所述芯轴的侧壁上设有沿芯轴的轴线方向设置的键槽，所述键槽内设有定位销，所述定位销的一侧突出于芯轴的外圆周表面，所述隔板的中部设有与定位销和芯轴配合的定位孔；上述键槽和定位销的设置，可对芯轴增加定位作用，使得隔板套设于芯轴上时，可通过定位销实现定位作用，避免隔板发生偏转而影响第一开槽与焊缝对应。Preferably, the side wall of the mandrel is provided with a keyway along the axial direction of the mandrel, and a positioning pin is provided in the keyway, and one side of the positioning pin protrudes from the outer circumferential surface of the mandrel, and the The middle part of the partition is provided with a positioning hole that matches the positioning pin and the mandrel; the setting of the above keyway and positioning pin can increase the positioning effect on the mandrel, so that when the partition is sleeved on the mandrel, the positioning can be realized through the positioning pin function, avoiding the deflection of the partition and affecting the correspondence between the first slot and the weld seam.
作为优选，所述压板的底面边缘处设有第二环形凸部，所述压板的侧壁上设有若干与转子铁芯冲片组的焊缝相对应的竖向的第二开槽；上述第二环形凸部的设置，使得压板可对转子铁芯冲片的边缘处压紧，避免压板和转子铁芯冲片面面接触时分散下压力，而导致顶部的转子铁芯冲片组的高度与其他转子铁芯冲片组不一致，而第二开槽的设置，以便于与转子铁芯冲片组的焊缝位置对应，从而可以在焊接时对焊点进行避让，避免焊接时焊接过度而导致转子铁芯冲片与压板焊接在一起。As a preference, a second annular protrusion is provided at the edge of the bottom surface of the pressing plate, and a plurality of vertical second slots corresponding to the welding seams of the rotor iron core punching set are provided on the side wall of the pressing plate; the above The setting of the second annular convex part enables the pressure plate to press against the edge of the rotor core punching piece, avoiding the dispersion of the downward force when the pressure plate and the rotor core punching piece are in surface-to-face contact, resulting in the height of the top rotor core punching piece group. It is inconsistent with other rotor core punching sets, and the second slot is set to correspond to the welding seam position of the rotor core punching set, so that the welding spots can be avoided during welding, and excessive welding can be avoided during welding. Cause the rotor iron core punching piece and the pressure plate to be welded together.
作为优选，所述芯轴的顶端对应于芯轴的轴心处设有突出于芯轴顶端的定位轴，所述压板的中部设有与定位轴相对应的导向孔；上述定位轴可以对导向孔形成导向作用，保证压板下压时的位置稳定性，避免压板发生偏移而影响压紧平稳性。As preferably, the top of the mandrel is provided with a positioning shaft protruding from the top of the mandrel corresponding to the axis of the mandrel, and the middle part of the pressure plate is provided with a guide hole corresponding to the positioning shaft; the above-mentioned positioning shaft can guide The hole forms a guiding function to ensure the position stability of the pressing plate when it is pressed down, and avoid the deviation of the pressing plate and affect the stability of the pressing.
作为优选，所述压板的底面和芯轴的顶端之间的垂直间距小于定位轴的顶端和和压板的顶面之间的垂直间距；上述压板的底面和芯轴的顶端之间的垂直间距小于定位轴的顶端和和压板的顶面之间的垂直间距的设置，使得压板被下压时，避免定位轴的顶端突出于压板的顶面，而使得定位轴与压头挤压，避免导致压头或定位轴的损坏，保证压头下压的稳定。As preferably, the vertical spacing between the bottom surface of the pressing plate and the top of the mandrel is less than the vertical spacing between the top of the positioning shaft and the top of the pressing plate; the vertical spacing between the bottom of the pressing plate and the top of the mandrel is less than The vertical distance between the top of the positioning shaft and the top surface of the pressure plate is set so that when the pressure plate is pressed down, the top of the positioning shaft is prevented from protruding from the top surface of the pressure plate, so that the positioning shaft and the pressure head are squeezed to avoid causing pressure. The damage of the head or the positioning shaft ensures the stability of the pressure head.
作为优选，所述工作台的上设有用于固定芯轴的卡盘，所述工作台的底部设有用于驱动卡盘转动的伺服电机；上述卡盘和伺服电机的设置，以便于对芯轴夹紧固定，同时可以在焊接时，通过芯轴控制转子铁芯冲片组转动一定角度，以便于自动对转子铁芯周侧的焊缝全面焊接。As a preference, a chuck for fixing the mandrel is provided on the workbench, and a servo motor for driving the chuck to rotate is provided at the bottom of the workbench; It is clamped and fixed, and at the same time, the rotor iron core punching group can be controlled to rotate at a certain angle through the mandrel during welding, so as to automatically weld the weld seam on the periphery of the rotor iron core.
作为优选，所述压板的上方设有压头，所述工作台的顶面上对应于芯轴的一侧设有加强板，所述加强板的顶端设有支撑板，所述支撑板的顶面上设有气缸，所述气缸的输出杆向下穿过支撑板与压头连接；上述压头和气缸的设置，以便于在焊接前，气缸控制压头下移并压紧压板，从而对各个转子铁芯冲片组进行压紧，保证各个转子铁芯冲片组高度的统一性。As a preference, a pressure head is provided above the pressing plate, a reinforcing plate is provided on the top surface of the workbench corresponding to the side of the mandrel, a supporting plate is provided at the top of the reinforcing plate, and a supporting plate is provided on the top of the supporting plate. There is a cylinder on the surface, and the output rod of the cylinder passes downwards through the support plate to connect with the pressure head; the above-mentioned pressure head and the cylinder are arranged so that before welding, the cylinder controls the pressure head to move down and compress the pressure plate, thereby Each rotor core punching group is compressed to ensure the uniformity of the height of each rotor core punching group.
作为优选，所述工作台的底部设有用于控制工作台横移的横移机构；上述横移机构的设置，以便于根据实际场地调整芯轴的位置，以便于自动靠近焊接装置，通过焊接装置自动开始焊接。As a preference, the bottom of the workbench is provided with a traversing mechanism for controlling the traversing of the workbench; the setting of the above-mentioned traversing mechanism is to adjust the position of the mandrel according to the actual site, so as to automatically approach the welding device, and pass the welding device Welding starts automatically.
有益效果Beneficial effect
因此，本发明具有可自动化批量焊接转子铁芯，焊接效率高，且控制精度高，焊接质量高等特点。Therefore, the present invention has the characteristics of automatic batch welding of rotor cores, high welding efficiency, high control precision, and high welding quality.
附图说明Description of drawings
图1是本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
图2是图1中的A处的结构放大图。FIG. 2 is an enlarged view of the structure at A in FIG. 1 .
图3是图1中的隔板的结构示意图。Fig. 3 is a schematic structural diagram of the separator in Fig. 1 .
图4是图1中的隔板的结构剖视图。Fig. 4 is a cross-sectional view of the structure of the separator in Fig. 1 .
图5是图1中的芯轴的俯视结构图。Fig. 5 is a top structural view of the mandrel in Fig. 1 .
本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION
下面通过实施例，并结合附图，对本发明的技术方案作进一步具体的说明。The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.
如图1-2所示，一种转子铁芯激光焊接设备，包括工作台1，工作台1的上方设有竖向设置的芯轴2，芯轴2上套设有上下间隔设置的隔板3，每个隔板3的上方均放置有待焊接的转子铁芯冲片组，芯轴2上位于最上端的转子铁芯冲片组的上方设有用于压紧各组转子铁芯冲片的压板4，芯轴2的一侧设有用于对各个转子铁芯冲片组焊接的焊接装置6。As shown in Figure 1-2, a rotor iron core laser welding equipment includes a workbench 1, a mandrel 2 arranged vertically above the workbench 1, and a partition board arranged at intervals up and down on the mandrel 2 3. A set of rotor core punches to be welded is placed above each partition 3, and a pressure plate for pressing each set of rotor core punches is provided above the uppermost rotor core punch set on the mandrel 2. 4. One side of the mandrel 2 is provided with a welding device 6 for welding each rotor core punching group.
工作台1的上设有用于固定芯轴2的卡盘11，工作台1的底部设有用于驱动卡盘11转动的伺服电机12，压板4的上方设有压头5，工作台1的顶面上对应于芯轴2的一侧设有加强板13，加强板13的顶端设有支撑板14，支撑板14的顶面上设有气缸15，气缸15的输出杆向下穿过支撑板14与压头5连接，工作台1的底部设有用于控制工作台1横移的横移机构7。A chuck 11 for fixing the mandrel 2 is arranged on the workbench 1, a servo motor 12 for driving the rotation of the chuck 11 is arranged at the bottom of the workbench 1, an indenter 5 is arranged above the pressure plate 4, and the top of the workbench 1 A reinforcement plate 13 is provided on the side corresponding to the mandrel 2, a support plate 14 is provided on the top of the reinforcement plate 13, a cylinder 15 is provided on the top surface of the support plate 14, and the output rod of the cylinder 15 passes through the support plate downwards. 14 is connected with the pressure head 5, and the bottom of the workbench 1 is provided with a traverse mechanism 7 for controlling the traverse of the workbench 1.
上述焊接装置为激光焊接器，为目前市场上已有的产品，为现有技术，此处不再赘述，上述转子铁芯通过多个转子铁芯冲片重叠并焊接而成，要求焊接过程铁芯冲片紧密排列，铁芯高度符合要求；上述伺服电机、压头、气缸及横移机构均为目前市场上已有的产品，为现有技术，此处不再赘述。The above-mentioned welding device is a laser welder, which is an existing product on the market and is an existing technology, so it will not be repeated here. The above-mentioned rotor core is formed by overlapping and welding a plurality of rotor core punches, and the welding process requires iron The core punches are closely arranged, and the height of the iron core meets the requirements; the above-mentioned servo motor, pressure head, cylinder and traverse mechanism are all existing products on the market, which are prior art and will not be repeated here.
在开始焊接前，先将隔板套上芯轴，将隔板放置在芯轴的最底端，然后放置指定要求数量的转子铁芯冲片，再放入隔板，接下来如此依次放置转子铁芯冲片和隔板，进行叠装，每两个转子铁芯冲片组的中间用隔板进行隔离，要求铁芯不得错位，同心度保持一致，最后将压板放置在最顶层的转子铁芯冲片组的上方，然后开启气缸下压，压力按不同产品型号设计数值，保证焊接过程铁芯冲片紧密排列，铁芯高度符合要求。Before starting welding, first put the partition on the mandrel, place the partition on the bottom of the mandrel, then place the specified number of rotor core punches, then put the partition, and then place the rotor in this order Iron core punches and partitions are stacked, and the middle of every two rotor core punching groups is separated by partitions. It is required that the iron cores must not be misaligned and the concentricity should be consistent. Finally, place the pressure plate on the top rotor iron core. On the top of the core punching group, and then open the cylinder to press down. The pressure is designed according to different product models to ensure that the iron core punches are closely arranged during the welding process and the height of the iron core meets the requirements.
接着开启横移机构，横移机构控制工作台朝着焊接装置移动，直至达到指定位置，按设定程序，通过焊接装置对各个转子铁芯冲片组进行批量的激光焊接。Then turn on the traversing mechanism, which controls the worktable to move towards the welding device until it reaches the designated position. According to the set program, the welding device performs batch laser welding on each rotor core punching group.
如图3-5所示，隔板3的顶面边缘处和底面边缘处分别设有第一环形凸部31，隔板3的侧壁上设有若干与转子铁芯冲片组的焊缝相对应的竖向的第一开槽32，芯轴2的侧壁上设有沿芯轴2的轴线方向设置的键槽21，键槽21内设有定位销22，定位销22的一侧突出于芯轴2的外圆周表面，隔板3的中部设有与定位销22和芯轴2配合的定位孔33，压板4的底面边缘处设有第二环形凸部41，压板4的侧壁上设有若干与转子铁芯冲片组的焊缝相对应的竖向的第二开槽42。As shown in Figure 3-5, the top edge and the bottom edge of the partition 3 are respectively provided with a first annular protrusion 31, and the side wall of the partition 3 is provided with a number of welding seams with the rotor core punching group. Corresponding to the first vertical slot 32, the side wall of the mandrel 2 is provided with a keyway 21 arranged along the axial direction of the mandrel 2, and a positioning pin 22 is arranged in the keyway 21, and one side of the positioning pin 22 protrudes from the On the outer peripheral surface of the mandrel 2, the middle part of the partition plate 3 is provided with a positioning hole 33 which is matched with the positioning pin 22 and the mandrel 2, and the edge of the bottom surface of the pressing plate 4 is provided with a second annular convex portion 41, and on the side wall of the pressing plate 4 There are several vertical second slots 42 corresponding to the welding seams of the rotor iron core stamping group.
如图2所示，芯轴2的顶端对应于芯轴2的轴心处设有突出于芯轴2顶端的定位轴23，压板4的中部设有与定位轴23相对应的导向孔43，压板4的底面和芯轴2的顶端之间的垂直间距小于定位轴23的顶端和和压板4的顶面之间的垂直间距。As shown in Figure 2, the top of the mandrel 2 is provided with a positioning shaft 23 protruding from the top of the mandrel 2 corresponding to the axis of the mandrel 2, and the middle part of the pressure plate 4 is provided with a guide hole 43 corresponding to the positioning shaft 23. The vertical distance between the bottom surface of the pressing plate 4 and the top end of the mandrel 2 is smaller than the vertical distance between the top end of the positioning shaft 23 and the top surface of the pressing plate 4 .
上述各个隔板的定位孔均与插接有定位销的芯轴配合，可限制隔板的水平转动，先将定位销***键槽内后，再将隔板套入芯轴，转子铁芯冲片同理，以保证角度方向及同心位置，而隔板的第一开槽和压板的第二开槽均竖向与转子铁芯冲片组的焊接处纵向连接，以留出焊点的多余空间，避免焊接时焊点对工装造成损坏；而定位轴通过螺纹固定在导向孔内，压板也可通过螺杆拧入导向孔和芯轴，以便于通过螺杆的转动驱动压板下移，实现对转子铁芯冲片的压紧。The positioning holes of the above-mentioned partitions are all matched with the mandrels inserted with the positioning pins, which can limit the horizontal rotation of the partitions. First insert the positioning pins into the key grooves, then insert the partitions into the mandrels, and punch the rotor core. In the same way, to ensure the angular direction and concentric position, the first slot of the separator and the second slot of the pressure plate are vertically connected with the welding place of the rotor iron core punching group, so as to leave extra space for the solder joints , to avoid damage to the tooling caused by solder joints during welding; the positioning shaft is fixed in the guide hole through threads, and the pressure plate can also be screwed into the guide hole and mandrel through the screw, so that the pressure plate can be driven down by the rotation of the screw to realize the rotor iron Compression of core punches.

Claims (1)

  1. 一种转子铁芯激光焊接设备，其特征在于；包括工作台（1），所述工作台（1）的上方设有竖向设置的芯轴（2），所述芯轴（2）上套设有上下间隔设置的隔板（3），每个所述隔板（3）的上方均放置有待焊接的转子铁芯冲片组，所述芯轴（2）上位于最上端的转子铁芯冲片组的上方设有用于压紧各组转子铁芯冲片的压板（4），所述芯轴（2）的一侧设有用于对各个转子铁芯冲片组焊接的焊接装置（6）。A rotor iron core laser welding equipment, characterized in that it includes a workbench (1), and a vertically arranged mandrel (2) is arranged above the workbench (1), and the mandrel (2) is covered with There are partitions (3) arranged at intervals up and down, and a set of rotor core punches to be welded is placed above each partition (3), and the uppermost rotor core punch on the mandrel (2) is A pressing plate (4) for pressing each group of rotor core punching pieces is provided above the sheet group, and a welding device (6) for welding each rotor core punching sheet group is provided on one side of the mandrel (2) .
    2. 根据权利要求1所述的转子铁芯激光焊接设备，其特征在于：所述隔板（3）的顶面边缘处和底面边缘处分别设有第一环形凸部（31）。2. The rotor core laser welding equipment according to claim 1, characterized in that: first ring-shaped protrusions (31) are respectively provided at the edge of the top surface and the edge of the bottom surface of the partition plate (3).
    3. 根据权利要求1或2所述的转子铁芯激光焊接设备，其特征在于：所述隔板（3）的侧壁上设有若干与转子铁芯冲片组的焊缝相对应的竖向的第一开槽（32）。3. The rotor core laser welding equipment according to claim 1 or 2, characterized in that: the side wall of the partition (3) is provided with a number of vertical holes corresponding to the welding seam of the rotor core punching group. to the first slot (32).
    4. 根据权利要求1所述的转子铁芯激光焊接设备，其特征在于：所述芯轴（2）的侧壁上设有沿芯轴（2）的轴线方向设置的键槽（21），所述键槽（21）内设有定位销（22），所述定位销（22）的一侧突出于芯轴（2）的外圆周表面，所述隔板（3）的中部设有与定位销（22）和芯轴（2）配合的定位孔（33）。4. The rotor core laser welding equipment according to claim 1, characterized in that: the side wall of the mandrel (2) is provided with a keyway (21) arranged along the axial direction of the mandrel (2), so that The keyway (21) is provided with a positioning pin (22), one side of the positioning pin (22) protrudes from the outer circumferential surface of the mandrel (2), and the middle part of the partition (3) is provided with the positioning pin (22) and the locating hole (33) that mandrel (2) cooperates.
    5. 根据权利要求1所述的转子铁芯激光焊接设备，其特征在于：所述压板（4）的底面边缘处设有第二环形凸部（41），所述压板（4）的侧壁上设有若干与转子铁芯冲片组的焊缝相对应的竖向的第二开槽（42）。5. The rotor core laser welding equipment according to claim 1, characterized in that: a second annular protrusion (41) is provided at the edge of the bottom surface of the pressing plate (4), and the side wall of the pressing plate (4) There are several vertical second slots (42) corresponding to the welding seams of the rotor iron core punching group.
    6. 根据权利要求1或5所述的转子铁芯激光焊接设备，其特征在于：所述芯轴（2）的顶端对应于芯轴（2）的轴心处设有突出于芯轴（2）顶端的定位轴（23），所述压板（4）的中部设有与定位轴（23）相对应的导向孔（43）。6. The rotor core laser welding equipment according to claim 1 or 5, characterized in that: the top of the mandrel (2) corresponds to the center of the mandrel (2) and is provided with a ) the positioning shaft (23) at the top, and the middle part of the pressure plate (4) is provided with a guide hole (43) corresponding to the positioning shaft (23).
    7根据权利要求6所述的转子铁芯激光焊接设备，其特征在于：所述压板（4）的底面和芯轴（2）的顶端之间的垂直间距小于定位轴（23）的顶端和和压板（4）的顶面之间的垂直间距。7. The rotor core laser welding equipment according to claim 6, characterized in that: the vertical distance between the bottom surface of the pressing plate (4) and the top of the mandrel (2) is smaller than the top and bottom of the positioning shaft (23) and The vertical spacing between the top surfaces of the platens (4).
    8. 根据权利要求1所述的转子铁芯激光焊接设备，其特征在于：所述工作台（1）的上设有用于固定芯轴（2）的卡盘（11），所述工作台（1）的底部设有用于驱动卡盘（11）转动的伺服电机（12）。8. The rotor core laser welding equipment according to claim 1, characterized in that: the workbench (1) is provided with a chuck (11) for fixing the mandrel (2), and the workbench ( The bottom of 1) is provided with a servo motor (12) for driving the chuck (11) to rotate.
    9. 根据权利要求1所述的转子铁芯激光焊接设备，其特征在于：所述压板（4）的上方设有压头（5），所述工作台（1）的顶面上对应于芯轴（2）的一侧设有加强板（13），所述加强板（13）的顶端设有支撑板（14），所述支撑板（14）的顶面上设有气缸（15），所述气缸（15）的输出杆向下穿过支撑板（14）与压头（5）连接。9. The rotor core laser welding equipment according to claim 1, characterized in that: a pressure head (5) is provided above the pressure plate (4), and the top surface of the workbench (1) corresponds to the core One side of the shaft (2) is provided with a reinforcing plate (13), the top of the reinforcing plate (13) is provided with a support plate (14), and the top surface of the support plate (14) is provided with a cylinder (15), The output rod of the cylinder (15) passes downward through the support plate (14) and is connected with the pressure head (5).
    10. 根据权利要求1或8或9所述的转子铁芯激光焊接设备，其特征在于：所述工作台（1）的底部设有用于控制工作台（1）横移的横移机构（7）。10. The rotor iron core laser welding equipment according to claim 1, 8 or 9, characterized in that: the bottom of the workbench (1) is provided with a traverse mechanism (7) for controlling the traverse of the workbench (1) ).
PCT/CN2022/109564 2021-11-09 2022-08-02 Laser welding apparatus for rotor core WO2023082725A1 (en)

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