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公开(公告)号：US6121574A
公开(公告)日：2000-09-19
申请号：US203381
申请日：1998-12-02
申请人： Feng-Yu Xu
发明人： Feng-Yu Xu
CPC分类号： G06K1/126 , G06K15/029
摘要： In marking execution mode, after initialization, a scanning control signal based on predetermined marking data and condition data is sent to a scanning head so that a beam spot of a YAG laser beam scans spirally on the interior of a predetermined first black cell in a two-dimensional bar code marking region on the surface of a workpiece W. After the completion of the spiral scanning on the interior of the first black cell, the beam spot skips over from the scanning end point to a scanning start point of a second black cell adjacent to that end point. Then, the interior of the second black cell is also scanned with the beam spot in a unit plotting pattern similar to the above. Afterward, the same spiral scanning as the above is iteratively made on a third and all subsequent black cells. Upon the completion of the spiral scanning on the last black cell, all the marking actions are complete.
摘要翻译： 在标记执行模式下，在初始化之后，将基于预定标记数据和条件数据的扫描控制信号发送到扫描头，使得YAG激光束的光点在两个预定的第一黑色单元的内部上螺旋地扫描 在工件W的表面上的维度条形码标记区域。在第一黑色单元内部的螺旋扫描完成之后，光束点从扫描终点跳过到第二黑色单元的扫描起始点 与该终点相邻。 然后，第二黑色单元的内部也以与上述相似的单位绘制图案中的束斑扫描。 之后，在第三个和所有随后的黑色单元上迭代地进行与上述相同的螺旋扫描。 在最后一个黑色单元上完成螺旋扫描后，所有的标记动作都完成了。
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2.发明授权Apparatus for entering, formatting, and storing a variety of characters, symbols, and figures for use in a laser marking system 有权用于输入，格式化和存储用于激光打标系统的各种字符，符号和图形的装置
公开(公告)号：US6066829A
公开(公告)日：2000-05-23
申请号：US176956
申请日：1998-10-22
申请人： Mitsuo Ishikawa
发明人： Mitsuo Ishikawa
摘要： A laser marker marks a workpiece surface with the pattern of a character, figure and/or symbol by laser beam scanning. It is desired to mark the pattern at the correct position on the workpiece surface. To facilitate the mark positioning, a virtual marking test is performed. In an embodiment, before the actual marking, a visible guide beam continuously and repeatedly scans the workpiece surface to form a projected image of the pattern or its domain. In another embodiment, before the actual marking, a visual display superimposes an image of the pattern and/or domain on a monitored image of the workpiece from a monitor camera. An automatic marking pattern generator is provided to automatically determine the character pattern to be marked from the entered character and marking area information.
摘要翻译： 激光标记通过激光束扫描以字符，图形和/或符号的图案标记工件表面。 希望将图案标记在工件表面的正确位置。 为了便于标记定位，执行虚拟标记测试。 在一个实施例中，在实际标记之前，可见导光束连续并重复扫描工件表面以形成图案或其畴的投影图像。 在另一个实施例中，在实际标记之前，视觉显示器将来自监视摄像机的图案和/或域的图像叠加在被监视的工件图像上。 提供自动标记图案发生器，用于根据输入的字符和标记区域信息自动确定要标记的字符图案。
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3.发明授权
公开(公告)号：US5834729A
公开(公告)日：1998-11-10
申请号：US745265
申请日：1996-11-08
申请人： Sakae Ishikawa
发明人： Sakae Ishikawa
CPC分类号： B23K11/256
摘要： A method for adapting fuzzy reasoning to a change of a working environment of resistance welding without requiring a changing or updating of membership functions, thereby assuring optimal control and satisfactory weld quality. In an embodiment of the present invention, a welding current I and a change of resistance .DELTA.R across welding electrodes are measured during a welding operation. The number of welding operations N involving the welding electrodes is incremented. After the present welding operation, these values of .DELTA.R, I and N are offset by adding offsetting values .delta. .DELTA.R, .delta.I and .delta.N. Degrees of membership of respective antecedent membership functions are computed for the offset values (.DELTA.R+.delta. .DELTA.R), (I+.delta.I) and (N+.delta.N). Degree of membership of conclusion membership function of each control rule is computed from degrees of membership of its antecedent membership functions. Then degrees of membership of conclusion membership functions U, S and D is composed. From the composed degree of membership, an operation value i.e., percent change of preselected welding current is computed by the center-of-gravity defuzzification method. Finally, the preselected value of the welding current is corrected by using the percent change. The corrected preselected welding current is then used for the next welding operation.
摘要翻译： 一种使模糊推理适应电阻焊接工作环境变化的方法，而不需要改变或更新隶属函数，从而确保最佳控制和令人满意的焊接质量。 在本发明的一个实施例中，在焊接操作期间测量焊接电流I和焊接电极之间的电阻变化DELTA R。 涉及焊接电极的焊接操作数N增加。 在当前焊接操作之后，DELTA R，I和N的这些值通过增加偏移值ΔDELTA R，ΔI和ΔN来偏移。针对偏移值计算各个先行隶属函数的隶属度（DELTA R + delta DELTA R），（I +ΔI）和（N +ΔN）。 每个控制规则的结论隶属函数的隶属度由其先行隶属函数的隶属度计算。 那么组成隶属函数U，S和D的隶属度。 根据组成的隶属度，通过重心去模糊化方法计算出预选焊接电流的百分比变化的操作值。 最后，通过使用百分比变化来校正焊接电流的预选值。 然后将修正的预选焊接电流用于下一次焊接操作。
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公开(公告)号：US5699466A
公开(公告)日：1997-12-16
申请号：US534788
申请日：1995-09-27
申请人： Takahiro Uchida , Keiichiro Akasawa
发明人： Takahiro Uchida , Keiichiro Akasawa
CPC分类号： G02B6/3813 , G02B6/3818 , G02B6/3851 , G02B6/3854 , G02B6/3861 , G02B6/4204 , G02B6/4296
摘要： The optical fiber connector is characterized by a cylindrical and ceramic ferrule having a center-axial bore of inner diameter allowing for concentrical insertion of an optical fiber depending upon outer diameter of said optical fiber deprived of its covering layer, and having outer surface coaxial with said center-axial bore, said ferrule being fixed in the connector body of said connector so as to project from said connector body by a predetermined length. Positioning between optical fiber coaxially held in ferrule and corresponding lens unit becomes easier, thereby to have high-power laser beams positively focused on the end surface of the optical fiber and to prevent burning damages of components of the optical fiber connector. Further, once the positioning between lens units and optical fiber has been carried out, any later positioning can be omitted.
摘要翻译： 光纤连接器的特征在于具有内径中心轴孔的圆柱形和陶瓷套圈，允许根据剥离其覆盖层的所述光纤的外径，同时插入光纤，并且具有与所述 中心轴向孔，所述套圈固定在所述连接器的连接器主体中，以便从所述连接器主体突出预定长度。 同轴保持在套圈中的光纤和对应的透镜单元之间的定位变得更容易，从而使大功率激光束积极地聚焦在光纤的端面上，并且防止光纤连接器的部件的燃烧损坏。 此外，一旦透镜单元和光纤之间的定位已经被执行，则可以省略任何后续的定位。
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公开(公告)号：US5591355A
公开(公告)日：1997-01-07
申请号：US386090
申请日：1995-02-09
申请人： Sakae Ishikawa
发明人： Sakae Ishikawa
CPC分类号： B23K11/252
摘要： A method for controlling resistance welding adaptively optimizes a set value of welding current for the next welding operation by inference from monitored signals of the present welding operation. In an embodiment, a welding current I and a change of resistance .DELTA.R across welding electrodes are measured during a welding operation. The number of welding operations N involving the welding electrodes is incremented. After the present welding operation, these values of .DELTA.R, I and N are mapped into compatibility degrees of respective antecedent membership functions. Compatibility degree of conclusion membership function of each control rule is computed from its antecedent membership function compatibility degrees. Then compatibility degree of conclusion membership functions U, S and D is composed. From the composed compatibility degree, an operation value i.e., percent change of set welding current is computed by the center of gravity defuzzification method. Finally, using the percent change, the set value of welding current is corrected. The corrected set welding current is used for the next welding operation.
摘要翻译： 用于控制电阻焊接的方法通过从当前焊接操作的监视信号的推断自适应地优化用于下一次焊接操作的焊接电流的设定值。 在一个实施例中，在焊接操作期间测量焊接电流I和跨焊接电极的电阻变化DELTA R。 涉及焊接电极的焊接操作数N增加。 在当前的焊接操作之后，这些DELTA R，I和N的值被映射到各自先行隶属函数的相容度。 每个控制规则的结论隶属函数的兼容度由其先行隶属函数兼容度计算。 那么组合U，S和D的隶属函数的兼容度。 根据组合的兼容度，通过重心去模糊化方法计算出设定焊接电流的百分比变化的操作值。 最后，使用百分比变化，修正焊接电流的设定值。 校正后的焊接电流用于下一次焊接操作。
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公开(公告)号：US5263042A
公开(公告)日：1993-11-16
申请号：US730464
申请日：1991-07-16
申请人： Minoru Kojima , Kazuyoshi Sutoh
发明人： Minoru Kojima , Kazuyoshi Sutoh
IPC分类号： H01S3/093
CPC分类号： H01S3/093 , H01S3/025 , H01S3/07 , H01S3/0813
摘要： A diffusion reflector is formed of mica ceramics or fluorine plastics containing barium sulfate, on the surface of which gold or silver is vapor deposited to enhance a diffusion reflectance. A reflective cylinder is formed from said diffusion reflector, and laser rods and lamps are arranged in an internal space of the reflective cylinder to form a solid laser device. Thereby, light can be diffused without focussing light within the reflective cylinder, and the laser rods can be uniformly excited.
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公开(公告)号：US07259352B2
公开(公告)日：2007-08-21
申请号：US10548999
申请日：2004-03-18
CPC分类号： B23K26/064 , B23K26/0648 , B23K26/0665 , B23K26/21
摘要： A laser welding process of the present invention comprises the steps of allowing a laser beam outputted from a laser beam generator to enter into an optical fiber through a light-introducing optical unit, and applying the laser beam exiting from the optical fiber to a weld zone through a light-delivering optical unit. The laser welding process is characterized in that the optical fiber has a core diameter set to be within 100 μm, a numeral aperture value for entrance of light into the optical fiber is set to be equal to or smaller than 0.05, a numeral aperture value for exiting of light from the optical fiber is set to be equal to or smaller than 0.1, and an energy of a one-pulse laser beam applied from the light-delivering optical unit is set at a value equal to or smaller than 1 joule.
摘要翻译： 本发明的激光焊接工艺包括以下步骤：允许从激光束发生器输出的激光束通过光引入光学单元进入光纤，并将从光纤射出的激光束施加到焊接区 通过发光光学单元。 激光焊接工艺的特征在于，光纤的芯径设定在100μm以内，光入射到光纤中的数值孔径值设定为0.05以下，数值孔径值为 将来自光纤的光的退出设定为等于或小于0.1，并且从光输送光学单元施加的单脉冲激光束的能量被设置为等于或小于1焦耳的值。
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公开(公告)号：US6137077A
公开(公告)日：2000-10-24
申请号：US370241
申请日：1999-08-09
申请人： Kyoji Moro , Hiroshi Shimada
发明人： Kyoji Moro , Hiroshi Shimada
CPC分类号： B23K11/257
摘要： When a second switching element Q.sub.2 is changed over from ON state to OFF state for each switching cycle while a first switching element Q.sub.1 remains ON in a unit weld period T.sub.a for example, a primary current I.sub.1 does not come to a stop at once under the influence of inductance of a welding transformer 16 but it flows as a transient current i through a primary circuit until it is off. The transient current i makes a closed circuit through which it flows from a primary coil of the welding transformer 16 via a third diode D.sub.3 and then a first switching element Q.sub.1 again into the primary coil of the welding transformer 16. More specifically, due to the first switching element Q.sub.1 being kept ON, the transient current i which has passed through the third diode D.sub.3 flows through the first switching element Q.sub.1, without passing through a capacitor 12, and comes back into the primary coil of the welding transformer. Little or substantially no current flows through the capacitor 12.
摘要翻译： 当第一开关元件Q1例如在单位焊接周期Ta中第一开关元件Q1保持导通时，对于每个开关周期，当第二开关元件Q2从接通状态切换到截止状态时，初级电流I1不会立即停止 焊接变压器16的电感的影响，但是作为瞬态电流i通过初级电路流动直至其断开。 瞬态电流i产生闭合电路，通过该闭合电路，其经由第三二极管D3从焊接变压器16的初级线圈流过第一开关元件Q1，再次进入焊接变压器16的初级线圈。更具体地说，由于 第一开关元件Q1保持导通，通过第三二极管D3的瞬态电流i流过第一开关元件Q1，而不通过电容器12，并返回焊接变压器的初级线圈。 很少或基本上没有电流流过电容器12。
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公开(公告)号：US6023053A
公开(公告)日：2000-02-08
申请号：US252935
申请日：1999-02-19
申请人： Shin-ichi Nakayama , Kaoru Nakayama
发明人： Shin-ichi Nakayama , Kaoru Nakayama
CPC分类号： G01J1/4257
摘要： A laser beam LB, which has entered a housing, travels via a reflection mirror and through a beam diffusion plate, ND filters 42 and a visible rays cut-off filter 44 to impinge on a beam receiving surface of a photodiode 46. A resistance heating element 48 in the form of, e.g., a metal film resistor and a power transistor 50 for the supply of electric power to the resistance heating element 48 are fixedly secured by bolts via respective insulating sheets with thermal conductivity to external wall surfaces of thick sidewalls 28d and 28e of a thermally conductive second retainer 28. The second retainer 28 is heated by both heat generated by the resistance heating element 48 and heat generated by the transistor 50. The second retainer 28 is provided also with a temperature sensor 52. A temperature control circuit accepts an output signal from the temperature sensor 52 and provides control of an output signal from the transistor 50 so as to allow the temperature of the second retainer 28 to conform to a set temperature.
摘要翻译： 已经进入壳体的激光束LB经由反射镜并通过光束扩散板，ND滤光器42和可见光截止滤光器44行进以照射到光电二极管46的光束接收表面上。电阻加热 诸如金属膜电阻器和用于向电阻加热元件48供电的功率晶体管50的形式的元件48通过具有导热性的绝缘片通过螺栓固定地固定到厚侧壁28d的外壁表面 和28e。第二保持器28由电阻加热元件48产生的热和由晶体管50产生的热量加热。第二保持器28也设置有温度传感器52.温度控制 电路接受来自温度传感器52的输出信号，并且提供对来自晶体管50的输出信号的控制，以便允许第二保持器28的温度 符合设定温度。
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公开(公告)号：US5986252A
公开(公告)日：1999-11-16
申请号：US42621
申请日：1998-03-17
申请人： Kouji Kawamura
发明人： Kouji Kawamura
CPC分类号： B23K26/20 , B23K26/702 , B23K26/705 , B23K31/125 , H01S3/131 , H01S3/1305
摘要： In a laser beam processing apparatus, a laser monitor comprises a photo sensor, a laser power measuring circuit, an A-D converter, a monitor control unit, a comparison decision unit, a display control unit, a display, an alarm generating circuit and a buzzer. A measured laser power signal (analog voltage signal) representative of an instantaneous value of laser power of a pulsed laser beam is produced by the photo sensor and the laser power measuring circuit, and the digital measured laser power signal from the A-D converter is supplied to the comparison decision unit and to the monitor control unit. The monitor control unit sets or determines a monitor reference waveform corresponding to a laser control reference waveform used for waveform control in the processing apparatus and controls the comparison decision unit. The comparison decision unit provides a monitoring decision on the power of the pulsed laser beam, which is displayed by a visual presentation or by display lamps on the display.
摘要翻译： 在激光束处理装置中，激光监视器包括光传感器，激光功率测量电路，AD转换器，监视器控制单元，比较判定单元，显示控制单元，显示器，报警发生电路和蜂鸣器 。 表示脉冲激光束的激光功率的瞬时值的测量的激光功率信号（模拟电压信号）由光电传感器和激光功率测量电路产生，并且将来自AD转换器的数字测量的激光功率信号提供给 比较判定单元和监视器控制单元。 监视器控制单元设置或确定与在处理装置中用于波形控制的激光控制参考波形对应的监视器参考波形，并控制比较判定单元。 比较判定单元提供通过视觉呈现显示的脉冲激光束的功率或由显示器上的显示灯显示的监视决定。
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