WO2011066707A1 - 等离子弧平面堆焊机 - Google Patents

等离子弧平面堆焊机 Download PDF

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Publication number
WO2011066707A1
WO2011066707A1 PCT/CN2010/000556 CN2010000556W WO2011066707A1 WO 2011066707 A1 WO2011066707 A1 WO 2011066707A1 CN 2010000556 W CN2010000556 W CN 2010000556W WO 2011066707 A1 WO2011066707 A1 WO 2011066707A1
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WIPO (PCT)
Prior art keywords
welding
plasma
motor
plasma arc
sliding plate
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PCT/CN2010/000556
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English (en)
French (fr)
Inventor
陈春明
Original Assignee
Chen Chunming
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Application filed by Chen Chunming filed Critical Chen Chunming
Publication of WO2011066707A1 publication Critical patent/WO2011066707A1/zh

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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
    • B23K10/00—Welding or cutting by means of a plasma
    • B23K10/006—Control circuits therefor
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
    • B23K37/0235—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track the guide member forming part of a portal
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work

Definitions

  • the invention belongs to the technical field of welding equipment, and particularly relates to a plasma arc plane surfacing machine.
  • the composite material uses the plasma arc surfacing technology to obtain a composite weld overlay layer with high wear resistance. It is an important development of plasma arc surfacing application technology.
  • the quality of the composite surfacing layer obtained by the plasma arc surfacing technology is stable and reliable. Under the condition of severe wear, the wear resistance of the composite surfacing layer is particularly prominent, because the stacking layer and the surface of the workpiece to be protected are metallurgically bonded. Therefore, it has a high bonding strength and can meet certain impact resistance requirements.
  • a plasma arc plane surfacing machine a frame of a gantry structure comprising a column and a beam as a main body, and a welding platform arranged at a corresponding position of the frame, driven by a longitudinal traveling motor,
  • the frame and the welding platform can be moved in parallel with respect to the longitudinal direction;
  • a lateral sliding plate driven by a laterally moving motor can be laterally moved or oscillated on the side of the beam of the frame, and a lifting torch holder can be arranged on the outer side of the lateral sliding plate, in the welding torch
  • a plasma directed to the soldering platform is mounted on the bracket
  • the welding torch is adjustable in height position of the plasma torch driven by the lifting motor.
  • the plasma torch is also equipped with DC welding power source, working gas and cooling water source. The wires connecting the motors lead to the control box and are automatically controlled by the electric automatic control device.
  • the welding platform is fixedly horizontally arranged, and the traveling roller is respectively arranged on the lower part of the two pillars of the frame, the traveling roller is seated on two horizontally laid rails, and the two longitudinal traveling motors are connected to the rack and pinion through the reducer
  • the drive is fixed, the rack is fixed on the outer side of the guide rail, and the longitudinal travel motor is a variable frequency motor or a servo motor.
  • the lateral sliding plate is supported by two linear guides on the outer side of the beam, and a lateral moving motor and a speed reducer are mounted on the outer side of the transverse sliding plate, and the output gear of the reducer projects rearward, and is horizontally mounted on the outer side of the beam.
  • the racks form a rack and pinion drive, and the laterally moving motor uses a servo motor.
  • the cymbal gun bracket comprises a lifting slide plate supported on the horizontal sliding plate by a linear slide rail in an up-and-down direction on the outer side surface of the lateral sliding plate, the plasma squirt gun is mounted on the lower part of the front surface of the lifting slide plate, and the upper part of the lifting slide plate is mounted with the lifting plate
  • the motor and the reducer, the output gear of the reducer protrudes rearward, and the rack-and-pinion drive is formed with the rack in the up and down direction mounted on the cross slide, and the lift motor uses a servo motor.
  • the number of the welding torch holders mounted on the outer side of the lateral sliding plate and the plasma welding torch mounted on the welding gun holder may be two or three or four, and the parallel partitions are respectively mounted on the outer side of the lateral sliding plate.
  • the electrical automatic control device is placed in the control box, and comprises an electronic touch screen, a programmable logic controller, a frequency conversion controller, an automatic arc voltage control device and an input and output device, which are electrically connected.
  • the DC power supply is a high power IGBT inverter power supply.
  • the mechanical parts of the invention such as the frame, the splicing platform, the horizontal sliding plate, the welding gun bracket and the like, have reasonable structural design, the longitudinal walking of the frame, the lateral movement or swing of the horizontal sliding plate, and the lifting and lowering of the plasma welding torch are all adopted.
  • the motor, reducer and gear rack drive With the motor, reducer and gear rack drive, the technology is mature and reliable.
  • the electrical control part of the invention comprises an electronic touch screen, a programmable logic controller, a frequency conversion controller, an automatic arc voltage control device and an input and output device, which can realize control of each moving component and control of the connection process parameters, and meet the connection Various operational requirements during the operation.
  • the invention adopts a plasma welding torch and is equipped with a high-power DC welding power source, which can meet the requirements of plasma arc surfacing welding of planar shape composite materials, and is provided with several plasma smashing guns.
  • each plasma squirt gun can be separately used. It can also be used with several plasma torches for high efficiency production.
  • the plasma arc plane surfacing machine with many of the above advantages can achieve efficient and automatic production, reduce labor intensity, improve working conditions, ensure product quality, and improve labor productivity.
  • Figure 1 is a schematic view of the main structure of the present invention.
  • FIG. 2 is a schematic view showing the front structure of the welding gun holder of the present invention.
  • the plasma arc plane surfacing machine shown in FIG. 1 comprises a frame of a gantry structure composed mainly of columns 1, 11 and a beam 2, and a welding platform 3 disposed at a corresponding position of the frame, and a longitudinal traveling motor (placed Driven by the column, not shown in the figure, the frame and the welding platform 3 can be moved parallel to the longitudinal direction, that is, forward or backward; on the side of the beam 2 of the frame, the lateral movement motor 15 can be driven to move laterally or swing.
  • a lateral slide 9 is provided on the outer side of the lateral slide 9 with a liftable welding gun bracket 6 on which a plasma burr 10 directed to the welding platform 3 is mounted, and the plasma torch 10 is driven by the lifting motor 7.
  • the plasma torch 10 is also provided with a DC power supply connected defended working gas and cooling water, with a flexible protective sheath and the introduction or extraction .5; connecting wire to each motor control t..
  • the box is automatically controlled by an electrical control unit.
  • the welding platform 3 in Fig. 1 is fixedly horizontally arranged, and a T-shaped groove is formed on the platform.
  • the traveling rollers 16 and 14 are respectively mounted on the lower portions of the two pillars 1 and 11 of the frame, and the traveling rollers 16 and 14 are respectively seated at On the two horizontally laid guide rails 17 and 13, two longitudinal travel motors are connected via a reduction gear to the rack and pinion drive, and the racks 18 and 12 are fixed to the outside of the guide rails 17 and 13, respectively.
  • the longitudinal travel motor is a variable frequency motor or a servo motor.
  • the lateral slide 9 is supported by two linear guides 4 on the outer side of the cross member 2, and a lateral movement motor 15 and a speed reducer (not shown) are mounted on the outer side of the lateral slide 9, and the output gear of the reducer projects rearward
  • the rack gear is horizontally mounted on the outer side of the beam (covered by the lateral slide 9 and not shown) to form a rack and pinion drive, and the laterally moving motor 15 is a servo motor.
  • the cymbal holder 6 includes a lifting slide 24, and the lifting slide 24 passes through the up-and-down linear slide on the outer side of the lateral slide 9 (covered by the lifting slide 24, not shown).
  • the plasma welding torch. 10 is mounted on the lower part of the front surface of the lifting slide 24 after being fastened by positioning, and the upper part of the lifting slide 24 is equipped with the lifting motor 7 and the speed reducer 8, and the output gear of the speed reducer 8 is extended backward, and installed.
  • the rack in the up and down direction on the cross slide 9 (covered by the elevating slide 24, not shown) forms a rack and pinion drive.
  • the lift motor 7 uses a servo motor.
  • the limit switches 19 and 20 are used to limit the starting and ending positions of the lifting slide 24, and are also the highest and lowest positions of the welding gun holder 6.
  • the plasma squirt 10 is also equipped with inlet pipes 26 and 27, outlet pipes 21 and 22, and a gas supply pipe 23, and the working gas can be argon gas.
  • the number of the plasma torch holders 6 mounted on the outer side of the lateral slide plate 9 and the plasma burrs 10 mounted on the welding gun holder 6 are four, and the parallel partitions are respectively mounted on the outer side faces of the lateral slide plates 9. Depending on the needs, it can be 1, 2 or 3.
  • the electrical automatic control device is placed in the control box, including electronic touch screen, programmable logic controller, frequency conversion
  • the controller, the automatic arc voltage control device and the input and output devices are electrically connected.
  • the DC welding power source is a high power IGBT inverter power supply. For example, four 22KW DC power supplies are used to supply four plasma torches.
  • the rated welding current is 300A X 4 and the thickness of the surfacing is 5 mm.
  • the plasma arc plane surfacing machine of the invention firstly lays the substrate of the workpiece to be welded and the wear-resistant powder block on the splicing platform during operation, and then adjusts the relative position of the plasma smashing gun and the workpiece to be smashed, and controls Set the required connection parameters on the touch screen of the box, such as the size of the welding, the walking speed of the frame, the swing speed of the plasma torch, the width of the weld bead, the width of the bead overlay, etc. Press the start button on the control box.
  • the welding operation can be carried out according to the set procedure, and the plasma torch automatically returns to the starting working point after the operation.
  • the present invention is not limited to the specific structure of the above embodiment, for example, in order to realize the relative longitudinal parallel movement of the frame and the splicing platform, the manner in which the frame is fixed and the welding platform is driven by the longitudinal traveling motor can be used; Numerical control technology can also be used. In other words, any simple modifications, equivalent changes and modifications that do not depart from the technical scope of the invention are still within the scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Arc Welding In General (AREA)
  • Arc Welding Control (AREA)

Description

等离子弧平面堆焊机
技术领域
本发明属于焊接设备技术领域， 具体涉及一种等离子弧平面堆焊机。
背景技术
《焊接》 杂志 1999年第 2期第 5至 8页刊登的 "优质高耐磨性堆焊技术" 一文中指出， 复合材料利用等离子弧堆焊技术获得具有高耐磨性的复合堆焊层， 是等离子弧堆焊应用技术的重要发展。 采用等离子弧堆焊技术获得的复合堆焊 层质量稳定可靠， 在磨损严重的工况条件下， 复合堆焊层的耐磨性表现尤为突 出， 由于堆悍层与被保护工件表面是冶金结合， 因此具有较高的结合强度， 并 且能满足一定的抗冲击要求。
近年来， 国内外对复合材料的等离子弧堆焊技术开展了深入的研究， 并且 取得了显著的进展。 但是在复合材料等离子弧堆焊的工艺设备的某些方面发展 相对滞后， 例如用于大面积平面形状的堆悍产品的焊接设备方面， 目前尚未见 有成熟可靠的等离子弧平面堆焊机用于生产， 平面堆焊产品仍然以手工生产为 主， 不但焊接质量难以保证， 而且生产效率低， 操作工人劳动强度大。
发明内容
本发明的目的是提供一种等离子弧平面堆焊机， 用于平面形状的复合材料 产品采用等离子弧堆焊的工艺方法实现高效自动化生产。
本发明是通过以下技术方案实现的： 等离子弧平面堆焊机， 包括立柱和横 梁为主体组成的龙门架结构的机架和设置于机架对应位置的焊接平台， 在纵向 行走电机的驱动下， 机架与焊接平台可以相对纵向平行移动； 在机架的横梁侧 面设置有由横向移动电机驱动可横向移动或摆动的的横向滑板， 在横向滑板的 外侧面设置有可升降的焊***架， 在焊***架上安装有指向焊接平台的等离子 焊枪， 在升降电机驱动下等离子焊枪的高度位置可调， 等离子焊枪还配备有直 流焊接电源、 工作气体和冷却水源； 连接各电机的导线通向控制箱并通过电气 自控装置实现自动控制。
所述的焊接平台为固定水平设置， 在机架的两个支柱的下部分别装有行走 滚轮， 行走滚轮座落在两个水平敷设的导轨上， 两个纵向行走电机通过减速器 连接齿轮齿条传动付， 齿条固定在导轨外侧， 所述纵向行走电机是变频电机或 伺服电机。
所述的横向滑板由横梁外侧面的两条直线导轨支承， 在横向滑板的外侧面 安装有横向移动电机和减速器， 减速器的输出齿轮向后伸出， 与安装在横梁外 侧面的水平方向的齿条形成齿轮齿条传动付， 横向移动电机采用伺服电机。
所述的悍***架包括有升降滑板， 升降滑板通过横向滑板外侧面上的上下 方向的直线滑轨支承在横向滑板上， 等离子悍枪安装在升降滑板正面的下部， 升降滑板的上部安装有升降电机和减速器， 减速器的输出齿轮向后伸出， 与安 装在横向滑板上的上下方向的齿条形成齿轮齿条传动付， 所述升降电机采用伺 服电机。
所述安装在横向滑板外侧面的焊***架及安装在焊***架上的等离子焊枪 的数量可以是 2个或 3个或 4个， 并且平行分隔分别安装在横向滑板外侧面。
所述的电气自控装置置于控制箱内， 包括电子触摸屏、 可编程逻辑控制器、 变频控制器、 自动弧压控制装置和输入输出设备， 经电气连接构成。
所述直流悍接电源是大功率 IGBT逆变电源。
本发明的优点及有益效果：
本发明的机械部分如机架、 悍接平台、 横向滑板、 焊***架等结构设计合 理， 机架的纵向行走、 横向滑板的横向移动或摆动、 等离子焊枪的升降都是采 用电机、 减速器、 齿轮齿条传动付的驱动方式， 技术成熟可靠。
. 本发明的电气控制部分包括电子触摸屏、 可编程逻辑控制器、 变频控制器、 自动弧压控制装置和输入输出设备， 可以实现对各个运动部件的控制和悍接工 艺参数的控制， 满足悍接作业过程中的各项操作要求。
本发明中采用等离子焊枪并配备大功率直流焊接电源， 可满足平面形状复 合材料产品的等离子弧堆焊焊接要求， 设置数个等离子悍枪， 针对不同的被加 工工件， 每个等离子悍枪可以单独使用也可以数个等离子焊枪一起使用， 能够 实现高效率生产。
总之， 具有上述诸多优点的等离子弧平面堆焊机， 可实现高效自动化生产， 降低工人劳动强度， 改善作业条件， 保证产品质量， 提高劳动生产率。
附图说明
' 图 1是本发明的主体结构示意图。
图 2是本发明中焊***架的正面结构示意图。
具体实施方式
下面结合附图和实施例对本发明做进一步详细描述。
如图 1所示的等离子弧平面堆焊机， 包括立柱 1、 11和横梁 2为主体组成 的龙门架结构的机架和设置于机架对应位置的焊接平台 3， 在纵向行走电机（置 于立柱内， 图中未画出） 的驱动下， 机架与焊接平台 3可以相对纵向平行移动， 即前进或后退； 在机架的横梁 2侧面设置有由横向移动电机 15驱动可横向移动 或摆动的的横向滑板 9， 在横向滑板 9的外侧面设置有可升降的焊***架 6， 在 焊***架 6上安装有指向焊接平台 3的等离子悍枪 10， 在升降电机 7的驱动下 等离子焊枪 10的高度位置可调， 等离子焊枪 10还配备有直流悍接电源、 工作 气体和冷却水源， 用柔性护套.5保护并引进或引出； 连接各电机的导线 .向控 t. 制箱并通过电气自控装置实现自动控制。 图 1中的焊接平台 3为固定水平设置， 平台上面加工有 T形槽，在机架的两个支柱 1和 11的下部分别装有行走滚轮 16 和 14， 行走滚轮 16和 14分别座落在两个水平敷设的导轨 17和 13上， 两个纵 向行走电机通过减速器连接齿轮齿条传动付， 齿条 18和 12分别固定在导轨 17 和 13外侧。 纵向行走电机是变频电机或伺服电机。
横向滑板 9由横梁 2外侧面的两条直线导轨 4支承， 在横向滑板 9的外侧 面安装有横向移动电机 15 和减速器 （未在图中画出）， 减速器的输出齿轮向后 伸出， 与安装在横梁外侧面的水平方向的齿条 （被横向滑板 9遮盖， 图中未画 出） 形成齿轮齿条传动付， 横向移动电机 15采用伺服电机。
如图 2所示， 悍***架 6包括有升降滑板 24， 升降滑板 24通过横向滑板 9 外侧面上的上下方向的直线滑轨 （被升降滑板 24遮盖， 图中未画出） 支承在横 向滑板 9上， 等离子焊枪. 10经定位紧固后被安装在升降滑板 24正面的下部， 升降滑板 24的上部安装有升降电机 7和减速器 8， 减速器 8的输出齿轮向后伸 出， 与安装在横向滑板 9上的上下方向的齿条 （被升降滑板 24遮盖， 图中未画 出） 形成齿轮齿条传动付。 升降电机 7采用伺服电机。 限位开关 19和 20用于 限制升降滑板 24的起点和终点位置， 同时也是焊***架 6的最高位置和最低位 置。 等离子悍枪 10还配有进水管 26和 27， 出水管 21和 22以及送气管 23， 工 作气体可采用氩气。 另外还有接线端子排 25， 用于升降电机 7、 限位开关 19和 20的导线汇集和对控制箱的连接。
在本实施例中，安装在横向滑板 9外侧面的焊***架 6及安装在焊***架 6 上的等离子悍枪 10的数量是 4个， 平行分隔分别安装在横向滑板 9的外侧面。 根据不同的需求， 也可以是 1个、 2个或 3个。
电气自控装置置于控制箱内， 包括电子触摸屏、 可编程逻辑控制器、 变频 控制器、 自动弧压控制装置和输入输出设备， 经电气连接构成。 直流焊接电源 是大功率 IGBT逆变电源。 如采用 4台 22KW的直流悍接电源， 分别供给 4个等 离子焊枪， 额定焊接电流是 300A X 4, 堆焊厚度 5毫米。
本发明的等离子弧平面堆焊机， 在操作使用时先将被焊工件的基板和耐磨 粉块布设在悍接平台上， 接着调整好等离子悍枪与被悍工件的相对位置， 并在 控制箱的触摸屏上设好需要的悍接参数， 如焊接的尺寸、 机架的行走速度、 等 离子焊枪的摆动速度、 焊道的宽度、 焊道叠加的宽度等， 按下控制箱上的启动 按钮， 即可按照设定的程序进行焊接作业， 作业结束后等离子焊枪自动回到起 始工作点。
显然， 本发明不限于上述实施例的具体结构， 例如为了实现机架与悍接平 台的相对纵向平行移动， 也可以采用机架固定设置而焊接平台由纵向行走电机 驱动行走的方式； 电气自控装置还可以采用数控技术。 总之， 凡是未脱离本发 明技术方案内容的任何简单修改、 等同变换及修饰， 仍属于本发明的保护范围。

Claims

WO 2011/066707 权 利 要 求 PCT/CN2010/000556
1.一种等离子弧平面堆悍机， 其特征在于： 包括立柱和横梁为主体组成的 龙门架结构的机架和设置于机架对应位置的焊接平台， 在纵向行走电机的驱动 下， 机架与悍接平台可以相对纵向平行移动； 在机架的横梁侧面设置有由横向 移动电机驱动可横向移动或摆动的的横向滑板， 在横向滑板的外侧面设置有可 升降的焊***架， 在悍***架上安装有指向焊接平台的等离子焊枪， 在升降电 机驱动下等离子焊枪的高度位置可调， 等离子焊枪还配备有直流悍接电源、 工 作气体和冷却水源； 连接各电机的导线通向控制箱并通过电气自控装置实现自 动控制。
2.根据权利要求 1 所述的等离子弧平面堆悍机， 其特征在于： 所述焊接平 台为固定水平设置， 在机架的两个支柱的下部分别装有行走滚轮， 行走滚轮座 落在两个水平敷设的导轨上， 两个纵向行走电机通过减速器连接齿轮齿条传动 付， 齿条固定在导轨外侧， 所述纵向行走电机是变频电机或伺服电机。
3.根据权利要求 1 所述的等离子弧平面堆焊机， 其特征在于： 所述横向滑 板由横梁外侧面的两条直线导轨支承， 在横向滑板的外侧面安装有横向移动电 机和减速器， 减速器的输出齿轮向后伸出， 与安装在横梁外侧面的水平方向的 齿条形成齿轮齿条传动付， 横向移动电机采用伺服电机。
• 根据权利要求 1 所述的等离子弧平面堆焊机， 其特征在于： 所述悍*** 架包括有升降滑板， 升降滑板通过横向滑板外侧面上的上下方向的直线滑轨支 承在横向滑板上， 等离子焊枪安装在升降滑板正面的下部， 升降滑板的上部安 装有升降电机和减速器， 减速器的输出齿轮向后伸出， 与安装在横向滑板上的 上下方向的齿条形成齿轮齿条传动付， 所述升降电机采用伺服电机。
5.根据权利要求 1或 4所述的等离子弧平而堆焊机， 其特征在于： 所述安 装在横向滑板外侧面的焊***架及安装在焊***架上的等离子焊枪的数量可以 权 利 要 求
是 2个或 3个或 4个， 并且平行分隔分别安装在横向滑板外侧面。
6.根据权利要求 1 所述的等离子弧平面堆焊机， 其特征在于： 所述的电气 自控装置置于控制箱内， 包括电子触摸屏、 可编程逻辑控制器、 变频控制器、 自动弧压控制装置和输入输出设备， 经电气连接构成。
7.根据权利要求 1 所述的等离子弧平面堆悍机， 其特征在于： 所述直流悍 接电源是大功率 IGBT逆变电源。
PCT/CN2010/000556 2009-12-04 2010-04-22 等离子弧平面堆焊机 WO2011066707A1 (zh)

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