WO2023283985A1 - 一种激光冲击强化薄壁结构的防层裂装置 - Google Patents

一种激光冲击强化薄壁结构的防层裂装置 Download PDF

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Publication number
WO2023283985A1
WO2023283985A1 PCT/CN2021/107792 CN2021107792W WO2023283985A1 WO 2023283985 A1 WO2023283985 A1 WO 2023283985A1 CN 2021107792 W CN2021107792 W CN 2021107792W WO 2023283985 A1 WO2023283985 A1 WO 2023283985A1
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Prior art keywords
fixedly connected
thin
fixed
laser shock
base
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PCT/CN2021/107792
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English (en)
French (fr)
Inventor
许飞
符春红
李侠
唐建波
徐志萍
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蓝达合智能装备(苏州)有限公司
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Publication of WO2023283985A1 publication Critical patent/WO2023283985A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
    • C21D10/005—Modifying the physical properties by methods other than heat treatment or deformation by laser shock processing
    • 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
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/356—Working by laser beam, e.g. welding, cutting or boring for surface treatment by shock processing
    • 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
    • B23K26/702—Auxiliary equipment
    • B23K26/706—Protective screens

Definitions

  • the utility model relates to the technical field of laser shock strengthening, in particular to a spallation prevention device for laser shock strengthening of thin-walled structures.
  • Laser shock strengthening technology is a high-tech technology that uses plasma shock waves generated by strong laser beams to improve the fatigue resistance, wear resistance and corrosion resistance of metal materials. It has outstanding advantages such as non-contact, no heat-affected zone, strong controllability, and remarkable strengthening effect.
  • the function of the coating is mainly to protect the workpiece from being burned by the laser and to enhance the absorption of laser energy.
  • the commonly used coating materials are black Paint and aluminum foil, etc.
  • the confinement layer can not only restrain the expansion of the plasma to increase the peak pressure of the shock wave, but also prolong the action time by reflecting the shock wave.
  • the commonly used confinement layer is flowing water and K9 glass.
  • the reactive tension on the thin-walled structure tends to cause spallation on the back of the thin-walled structure, which in turn damages the thin-walled structure, which is not conducive to the thin-walled structure.
  • the laser shock strengthening operation of the structure and when the laser shock strengthening is performed, the strengthening operation cannot be performed stably during the manual operation, and it is easy to cause damage to the human body, which not only increases the labor cost, but also reduces the laser shock strengthening effect, which is not conducive to thin Strengthening of the wall structure.
  • This utility model is to provide a laser shock strengthening thin-walled structure anti-splitting device to solve the problems raised in the above-mentioned background technology.
  • a laser shock strengthening thin-walled structure anti-splitting device including a base, a mechanical arm and a turntable, the upper right side of the base is fixedly connected with a fixed frame, the The inner side of the fixed frame is fixedly connected with an elastic layer, and the right end of the upper surface of the base is fixedly connected with a fixed plate, and the inner side of the fixed plate is spirally connected with a threaded shaft, and the left end of the threaded shaft is fixedly connected with a limiting plate.
  • the left end of the limiting plate is fixedly connected with a telescopic rod
  • the surface of the telescopic rod is covered with a spring
  • the left end of the telescopic rod is fixedly connected with a connector
  • the connector The inner side of the fixed frame is rollingly connected with balls
  • the left side of the fixed frame is provided with a fixed splint
  • the fixed splint is fixedly connected with the base
  • the upper end of the fixed splint is fixedly connected with a support rod
  • the upper side of the support rod slides
  • a movable splint is connected
  • the upper end of the support rod is fixedly connected with a support plate
  • the inner side of the support plate is rotatably connected with a threaded rod
  • the outer side of the threaded rod is spirally connected with a lifting sleeve
  • a mechanical arm is fixedly connected to the left side of the upper end of the base, and a laser impactor is rotatably connected to the upper end of the mechanical arm.
  • a rotary valve is fixedly connected to the right end of the threaded shaft.
  • a turntable is fixedly connected to the upper end of the threaded rod, and the turntable is rotatably connected to the support plate.
  • the support rods are arranged symmetrically with respect to the central axis of the fixing splint.
  • the rotation of the threaded shaft enables the ball to fit the elastic layer, and enables the elastic layer to fit the back of the thin-walled structure, so that the back of the thin-walled structure can be obtained
  • Elastic reinforcement improves the toughness of the thin-walled structure, and reduces the impulse force through the spring to reduce the reactive tension on the thin-walled structure, thereby preventing the reactive tension from causing spallation to the thin-walled structure, so that the laser can better treat the thin-walled structure.
  • the wall structure is impact-strengthened.
  • the rotation of the threaded rod can make the lifting sleeve drive the movable splint to move up and down, so that the thin-walled structure can be fixedly clamped between the fixed splint and the movable splint , so that the thin-walled structure can be fixed and clamped, so that the laser impactor can automatically impact the thin-walled structure, reduce the cost of manual operation, and improve the safety of laser shock.
  • Fig. 1 is a schematic diagram of the overall installation structure of the utility model.
  • Fig. 2 is a left view of the installation structure of the fixed splint, the movable splint and the support plate of the utility model.
  • Fig. 3 is a schematic diagram of the installation structure at A in Fig. 1 of the present utility model.
  • Fig. 4 is a left view of the installation structure of the fixing plate, connector and balls of the present invention.
  • a laser shock-strengthened thin-walled structure anti-splitting device including a base 1, a mechanical arm 17 and a turntable 20, and the upper right side of the base 1 is fixedly connected with a Fixed frame 2, the inner side of fixed frame 2 is fixedly connected with elastic layer 3, the upper surface right end of base 1 is fixedly connected with fixed plate 4, the inner side of fixed plate 4 is spirally connected with threaded shaft 5, and the left end of threaded shaft 5 is fixedly connected with limit Plate 6, sliding connection between the limiting plate 6 and the fixed plate 4, the left end of the limiting plate 6 is fixedly connected with a telescopic rod 7, the surface of the telescopic rod 7 is covered with a spring 8, and the left end of the telescopic rod 7 is fixedly connected with a connector 9.
  • the inner side of the connector 9 is rollingly connected with a ball 10, and the left side of the fixed frame 2 is provided with a fixed splint 11.
  • the fixed splint 11 is fixedly connected with the base 1.
  • the upper end of the fixed splint 11 is fixedly connected with a support rod 12.
  • the support rod The upper side of 12 is slidingly connected with movable splint 13, and the upper end of support rod 12 is fixedly connected with support plate 14, and the inner side of support plate 14 is connected with threaded rod 15, and the outer side of threaded rod 15 is spirally connected with lifting sleeve 16, and the lifting sleeve
  • the pipe 16 is fixedly connected with the movable splint 13 .
  • the left side of the upper end of the base 1 is fixedly connected with a mechanical arm 17, and the upper end of the mechanical arm 17 is rotatably connected with a laser impactor 18, which facilitates automatic operation of the laser impactor 18 and reduces manual operation costs;
  • the right end of the threaded shaft 5 is fixedly connected with a rotating
  • the valve 19 is convenient to adjust the position of the ball 10, so that the elastic layer 3 can be closely attached to the back of the thin-walled structure;
  • the upper end of the threaded rod 15 is fixedly connected with a turntable 20, and the turntable 20 is connected to the support plate 14 in rotation, which is convenient for alignment.
  • the position of the movable splint 13 is adjusted so that the movable splint 13 and the fixed splint 11 can clamp thin-walled structures of different sizes; there are two support rods 12, and the support rods 12 are arranged symmetrically about the central axis of the fixed splint 11 , so that the movable splint 13 can be limited, thereby preventing the movable splint 13 from deflecting.
  • This device uses a rated power supply for power supply.
  • the thin-walled structure is placed inside the fixed splint 11, and the turntable 20 is rotated forward to make the threaded rod 15 drive the lifting sleeve 16.
  • the movable splint 13 moves downward, and then use the movable splint 13 and the fixed splint 11 to fix and clamp the thin-walled structure, and at the same time, the movable splint 13 is limited by the set support rod 12 to prevent the movable splint 13 from Deflection, and rotate the rotary valve 19 according to the back of the thin-walled structure, so that the threaded shaft 5 drives the limit plate 6 to move, and the telescopic rod 7 drives the connecting head 9 to move to the left, so that the ball 10 can move the elastic layer 3 is extruded, so that the elastic layer 3 can closely fit the back of the thin-walled structure, so that the back of the thin-walled structure can be thickened and reinforced, and at the same time, the toughness of the thin-walled structure can be improved through the elastic effect of the elastic layer 3, thereby Reduce the risk of spallation in the thin-walled structure during the laser shock strengthening process, and start the mechanical arm 17 to flex

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Lasers (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

一种激光冲击强化薄壁结构的防层裂装置，包括底座、机械臂和转盘，所述底座的上端右侧固定连接有固定框，所述固定框的内侧固定连接有弹性层，所述底座的上表面右端固定连接有固定板，所述固定板的内侧螺旋连接有螺纹轴，所述螺纹轴的左端固定连接有限位板，所述限位板的左端固定连接有伸缩杆，所述伸缩杆的表面外覆有弹簧，所述伸缩杆的左端固定连接有连接头，所述连接头的内侧滚动连接有滚珠，通过设置的弹性层、螺纹轴和滚珠，利用螺纹轴的转动使滚珠能够贴合弹性层，使弹性层能够贴合薄壁结构背面，并通过弹簧将冲力进行削减，从而防止反作用拉力对薄壁结构造成层裂。

Description

一种激光冲击强化薄壁结构的防层裂装置 技术领域
本实用新型涉及激光冲击强化技术领域，具体为一种激光冲击强化薄壁结构的防层裂装置。
 背景技术
随着社会的发展，对激光冲击强化技术的应用愈加广泛，激光冲击强化技术是利用强激光束产生的等离子冲击波，提高金属材料的抗疲劳、耐磨损和抗腐蚀能力的一种高新技术，它具有非接触、无热影响区、可控性强以及强化效果显著等突出优点，涂层的作用主要是保护工件不被激光灼伤并增强对激光能量的吸收，目前常用的涂层材料有黑漆和铝箔等，约束层除了能约束等离子体的膨胀从而提高冲击波的峰值压力外，还能通过对冲击波的反射延长其作用时间，目前常用的约束层为流水，K9玻璃。
 技术问题
现有技术中，对与激光冲击强化薄壁结构在激光冲击的过程中，对薄壁结构的反作用拉力容易使薄壁结构背部产生层裂现象，进而使薄壁结构受损，不利于薄壁结构的激光冲击强化操作；且在进行激光冲击强化时，人工进行操作时不能够稳定的进行强化操作，并容易对人体造成损害，不仅提升人工劳作成本，并降低激光冲击强化效果，不利于薄壁结构的强化。
 技术解决方案
本实用新型的目的在于提供一种激光冲击强化薄壁结构的防层裂装置，以解决上述背景技术中提出的问题。
为实现上述目的，本实用新型提供如下技术方案：一种激光冲击强化薄壁结构的防层裂装置，包括底座、机械臂和转盘，所述底座的上端右侧固定连接有固定框，所述固定框的内侧固定连接有弹性层，所述底座的上表面右端固定连接有固定板，所述固定板的内侧螺旋连接有螺纹轴，所述螺纹轴的左端固定连接有限位板，所述限位板与固定板之间滑动连接，所述限位板的左端固定连接有伸缩杆，所述伸缩杆的表面外覆有弹簧，所述伸缩杆的左端固定连接有连接头，所述连接头的内侧滚动连接有滚珠，所述固定框的左侧设有固定夹板，所述固定夹板与底座之间固定连接，所述固定夹板的上端固定连接有支撑杆，所述支撑杆的上侧滑动连接有活动夹板，所述支撑杆的上端固定连接有支撑板，所述支撑板的内侧转动连接有螺纹杆，所述螺纹杆的外侧螺旋连接有升降套管，所述升降套管与活动夹板之间固定连接。
优选的，所述底座的上端左侧固定连接有机械臂，所述机械臂的上端转动连接有激光冲击器。
优选的，所述螺纹轴的右端固定连接有转动阀。
优选的，所述螺纹杆的上端固定连接有转盘，所述转盘与支撑板之间转动连接。
优选的，所述支撑杆的数量有两个，所述支撑杆关于固定夹板的中心轴对称设置。
 有益效果
本实用新型中，通过设置的弹性层、螺纹轴和滚珠，利用螺纹轴的转动使滚珠能够贴合弹性层，并使弹性层能够贴合薄壁结构背面，从而使薄壁结构的背面能够得到弹性加固，使薄壁结构的韧性得到提升，并通过弹簧将冲力进行削减，降低薄壁结构所受的反作用拉力，从而防止反作用拉力对薄壁结构造成层裂，使激光能够更好的对薄壁结构进行冲击加固。
本实用新型中，通过设置的固定夹板、活动夹板和螺纹杆，利用螺纹杆的转动使升降套管能够带动活动夹板上下移动，从而使薄壁结构能够固定夹持在固定夹板和活动夹板之间，从而使薄壁结构能够得到固定夹持，从而便于激光冲击器自动的对薄壁结构进行冲击，降低人工操作成本，使激光冲击的安全性得到提升。
 附图说明
图1为本实用新型的整体安装结构示意图。
图2为本实用新型固定夹板、活动夹板和支撑板的安装结构左视图。
图3为本实用新型图1的A处安装结构示意图。
图4为本实用新型固定板、连接头和滚珠的安装结构左视图。
图中：1、底座；2、固定框；3、弹性层；4、固定板；5、螺纹轴；6、限位板；7、伸缩杆；8、弹簧；9、连接头；10、滚珠；11、固定夹板；12、支撑杆；13、活动夹板；14、支撑板；15、螺纹杆；16、升降套管；17、机械臂；18、激光冲击器；19、转动阀；20、转盘。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
请参阅图1-4，本实用新型提供一种技术方案：一种激光冲击强化薄壁结构的防层裂装置，包括底座1、机械臂17和转盘20，底座1的上端右侧固定连接有固定框2，固定框2的内侧固定连接有弹性层3，底座1的上表面右端固定连接有固定板4，固定板4的内侧螺旋连接有螺纹轴5，螺纹轴5的左端固定连接有限位板6，限位板6与固定板4之间滑动连接，限位板6的左端固定连接有伸缩杆7，伸缩杆7的表面外覆有弹簧8，伸缩杆7的左端固定连接有连接头9，连接头9的内侧滚动连接有滚珠10，固定框2的左侧设有固定夹板11，固定夹板11与底座1之间固定连接，固定夹板11的上端固定连接有支撑杆12，支撑杆12的上侧滑动连接有活动夹板13，支撑杆12的上端固定连接有支撑板14，支撑板14的内侧转动连接有螺纹杆15，螺纹杆15的外侧螺旋连接有升降套管16，升降套管16与活动夹板13之间固定连接。
底座1的上端左侧固定连接有机械臂17，机械臂17的上端转动连接有激光冲击器18，便于自动对激光冲击器18进行操作，降低人工操作成本；螺纹轴5的右端固定连接有转动阀19，便于对滚珠10的位置进行调整，从而使弹性层3能够紧密贴合薄壁结构背面；螺纹杆15的上端固定连接有转盘20，转盘20与支撑板14之间转动连接，便于对活动夹板13的位置进行调整，从而使活动夹板13和固定夹板11能够对不同大小的薄壁结构进行夹持；支撑杆12的数量有两个，支撑杆12关于固定夹板11的中心轴对称设置，使活动夹板13能够得到限位处理，从而防止活动夹板13发生偏转现象。
工作流程：此装置采用额定电源进行供电，在对薄壁结构进行激光冲击强化时，将薄壁结构放置在固定夹板11内侧，并正向转动转盘20，使螺纹杆15带动升降套管16向下移动，从而使活动夹板13向下移动，进而利用活动夹板13和固定夹板11对薄壁结构进行固定夹持，同时通过设置的支撑杆12对活动夹板13进行限位，防止活动夹板13发生偏转，并根据薄壁结构的背面对转动阀19进行转动，从而使螺纹轴5带动限位板6进行移动，使伸缩杆7带动连接头9向左侧移动，进而使滚珠10能够对弹性层3进行挤压，使弹性层3能够紧密贴合薄壁结构的背面，使薄壁结构的背部得到加厚加固处理，同时通过弹性层3的弹性作用，使薄壁结构的韧性得到提升，从而降低薄壁结构在激光冲击加强过程中出现层裂的风险，并启动机械臂17对激光冲击器18进行灵活操作，降低人工操作成本，并防止激光冲击对人体造成伤害，同时通过弹簧8的弹性，使激光冲击的反作用拉力得到缓冲，从而能够有效的防止薄壁结构在激光冲击强化的过程中发生层裂现象，并能够提升激光冲击强化效果，使薄壁结构的表面能够得到充分的强化。
 工业实用性
尽管已经示出和描述了本实用新型的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本实用新型的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本实用新型的范围由所附权利要求及其等同物限定。

Claims (5)

  1. 一种激光冲击强化薄壁结构的防层裂装置，包括底座（1）、机械臂（17）和转盘（20），其特征在于：所述底座（1）的上端右侧固定连接有固定框（2），所述固定框（2）的内侧固定连接有弹性层（3），所述底座（1）的上表面右端固定连接有固定板（4），所述固定板（4）的内侧螺旋连接有螺纹轴（5），所述螺纹轴（5）的左端固定连接有限位板（6），所述限位板（6）与固定板（4）之间滑动连接，所述限位板（6）的左端固定连接有伸缩杆（7），所述伸缩杆（7）的表面外覆有弹簧（8），所述伸缩杆（7）的左端固定连接有连接头（9），所述连接头（9）的内侧滚动连接有滚珠（10），所述固定框（2）的左侧设有固定夹板（11），所述固定夹板（11）与底座（1）之间固定连接，所述固定夹板（11）的上端固定连接有支撑杆（12），所述支撑杆（12）的上侧滑动连接有活动夹板（13），所述支撑杆（12）的上端固定连接有支撑板（14），所述支撑板（14）的内侧转动连接有螺纹杆（15），所述螺纹杆（15）的外侧螺旋连接有升降套管（16），所述升降套管（16）与活动夹板（13）之间固定连接。
  2. 根据权利要求1所述的一种激光冲击强化薄壁结构的防层裂装置，其特征在于：所述底座（1）的上端左侧固定连接有机械臂（17），所述机械臂（17）的上端转动连接有激光冲击器（18）。
  3. 根据权利要求1所述的一种激光冲击强化薄壁结构的防层裂装置，其特征在于：所述螺纹轴（5）的右端固定连接有转动阀（19）。
  4. 根据权利要求1所述的一种激光冲击强化薄壁结构的防层裂装置，其特征在于：所述螺纹杆（15）的上端固定连接有转盘（20），所述转盘（20）与支撑板（14）之间转动连接。
  5. 根据权利要求1所述的一种激光冲击强化薄壁结构的防层裂装置，其特征在于：所述支撑杆（12）的数量有两个，所述支撑杆（12）关于固定夹板（11）的中心轴对称设置。
PCT/CN2021/107792 2021-07-14 2021-07-22 一种激光冲击强化薄壁结构的防层裂装置 WO2023283985A1 (zh)

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