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1. 发明授权

US5130514A Control apparatus for tracing a weld line in a welding apparatus and control method therefor 失效
标题翻译：用于跟踪焊接设备中的焊接线的控制装置及其控制方法
公开(公告)号：US5130514A
公开(公告)日：1992-07-14
申请号：US520711
申请日：1990-05-08
申请人： Katsuya Kugai , Hideyuki Yamamoto , Yuusuke Niimura
发明人： Katsuya Kugai , Hideyuki Yamamoto , Yuusuke Niimura
IPC分类号： B23K9/127 , B23Q35/129
CPC分类号： B23K9/127 , B23Q35/129
摘要： There is disclosed a control apparatus and a control method in a welding apparatus for enabling a welding torch to trace a weld line with use of an oscillating process. In the control apparatus and control method, the welding torch is oscillated in the left and right directions crossing the weld line with an overpass, and an electric signal is detected responsive to changes in an arc length and a wire extension. The moving average value of the electric signal is calculated for a predetermined smoothing time interval so as to eliminate a high frequency noise component of the electric signal, and there is outputted a low-pass-filtered electric signal having a level of the calculated moving average value. Thereafter, a controller moves the center of the oscillation so as to enable the welding torch to trace the weld line responsive to the filtered electric signal.
摘要翻译：公开了一种焊接装置中的控制装置和控制方法，用于使焊炬能够利用振荡过程跟踪焊接线。在控制装置和控制方法中，焊炬在与立交桥相交的焊接线的左右方向上振动，并且响应于电弧长度和电线延伸的变化来检测电信号。以预定的平滑时间间隔计算电信号的移动平均值，以消除电信号的高频噪声分量，并且输出具有计算出的移动平均电平的低通滤波电信号值。此后，控制器移动振荡的中心，以便能够使焊炬响应于滤波后的电信号跟踪焊接线。

2. 发明授权

US4990743A Control method for tracing a weld line in a welding apparatus 失效
标题翻译：用于跟踪焊接设备中的焊接线的控制方法
公开(公告)号：US4990743A
公开(公告)日：1991-02-05
申请号：US438677
申请日：1989-11-17
申请人： Katsuya Kugai , Hideyuki Yamamoto , Yusuke Niimura
发明人： Katsuya Kugai , Hideyuki Yamamoto , Yusuke Niimura
IPC分类号： B23K9/127 , B23Q35/129
CPC分类号： B23K9/127 , B23Q35/129
摘要： A control method in a welding apparatus for enabling a welding torch to trace a weld line with use of an oscillating process is disclosed. The welding torch is oscillated in left and right directions solidly crossing the weld line. Electric signals respectively detected when the welding torch moves in the left and right directions for a time interval of the right half of the oscillation are compared with each other so as to generate a first comparative signal, and electric signals detected similarly for a time interval of the left half thereof are compared with each other so as to generate a second comparative signal. The center of the oscillation is moved in such a direction that a difference between the first and second comparative signals becomes small.
摘要翻译：公开了一种焊接设备中的控制方法，用于使焊炬能够利用振荡过程跟踪焊接线。焊枪在左右方向上振动稳定地穿过焊缝。当焊枪在振荡的右半部分的时间间隔内沿左右方向移动时分别检测到的电信号，以便产生第一比较信号，并且以将其左半部彼此进行比较，以产生第二比较信号。振荡的中心沿着第一和第二比较信号之间的差变小的方向移动。

3. 发明授权

US3609288A Electron beam seam-finding method and apparatus 失效
标题翻译：电子束探测方法和装置
公开(公告)号：US3609288A
公开(公告)日：1971-09-28
申请号：US3609288D
申请日：1968-12-18
申请人： WELDING RESEARCH INC
发明人： SCIAKY ALBERT M
IPC分类号： B23K15/00 , B23K15/02 , B23Q35/129 , H01J37/304
CPC分类号： B23Q35/129 , B23K15/02 , H01J37/304
摘要： The present invention is for a method for determining the point of impingement of an electron beam with reference to the position of the seam between the two parts which are to be welded as may be used in the electron beam welding process. The electron beam is oscillated along a line transverse to the seam or along any other convenient path which traverses the seam. Secondary electrons emitted from the surface of the workpieces being scanned by the oscillating beam are collected by an electrode mounted above the work surface. The changes in secondary electron current through the electrode are displayed on the face of the cathode-ray oscilloscope whose horizontal sweep is controlled by the oscillator which is generating the electron beam scanning waveform. The signal generator or oscillator which produces the scanning signal is periodically shorted for preset intervals so that the beam remains in its ''''at rest'''' position during these intervals and the horizontal sweep is also ''''at rest'''' during these intervals so that a bright marker spot is displayed on the cathode-ray oscilloscope which defines the rest position of the electron beam as it strikes the work. By moving the workpieces with respect to the electron beam in a direction transverse to the seam, this marker spot may be brought to superimpose over the pattern of secondary emission current at a point which indicates the minimum secondary emission. This is the point at which the beam is striking the workpieces at the seam.

4. 发明授权

US3257555A Pattern scanning system 失效
标题翻译：图案扫描系统
公开(公告)号：US3257555A
公开(公告)日：1966-06-21
申请号：US31602463
申请日：1963-10-14
申请人： UNITED AIRCRAFT CORP
发明人： KLEBBA ARTHUR A
IPC分类号： H01J37/30 , B23K15/00 , B23K15/02 , B23K15/08 , B23Q35/127 , B23Q35/129 , H01J37/302
CPC分类号： B23K15/02 , B23Q35/127 , B23Q35/129 , H01J37/3023

5. 发明授权

US2828673A Machine tool 失效
公开(公告)号：US2828673A
公开(公告)日：1958-04-01
申请号：US41712254
申请日：1954-03-04
申请人： PRATT & WHITNEY CO INC
发明人： CAMPBELL PAUL J
IPC分类号： B23Q35/12 , B23Q35/129
CPC分类号： B23Q35/129 , B23Q35/12 , B23Q2735/065 , Y10T409/30196

6. 发明专利

JPS5843223B2 失效
公开(公告)号：JPS5843223B2
公开(公告)日：1983-09-26
申请号：JP12982378
申请日：1978-10-20
申请人： SHIN MEIWA IND CO LTD
发明人： IHARA YASUSHI , UEDA MASAO
IPC分类号： B23Q35/129 , B23K9/127

7. 发明专利

JPS5558955A NON CONTACT CONTOURING DEVICE 失效
公开(公告)号：JPS5558955A
公开(公告)日：1980-05-02
申请号：JP12982378
申请日：1978-10-20
申请人： SHIN MEIWA IND CO LTD
发明人： IHARA YASUSHI , UEDA MASAO
IPC分类号： B23Q35/129 , B23K9/127
摘要： PURPOSE:To control the distance between the electrode and the conductive contouring object to avoid errors and to improve stability by detecting the changes in the current of the voltage accompanied by the discharge between the electrode and the conductive contouring object. CONSTITUTION:The revolving vertical shaft V of the automatic welding robot has a fixed arm A and the welding torch T is attached at the top. The sensors S1, S2 which are not incorporated with the torch T are vertically fixed to output the distance from the vertical surface VS and the horizontal surface HS of the work W, and the mutual positions of the torch T and the work W are controlled to be constant. The discharge electrodes are used as the sensors S1, S2.

8. 发明专利

JPS5329665B2 失效
公开(公告)号：JPS5329665B2
公开(公告)日：1978-08-22
申请号：JP10481673
申请日：1973-09-17
IPC分类号： B23K7/00 , B23Q35/129

9. 发明专利

JPS5067762A 失效
公开(公告)号：JPS5067762A
公开(公告)日：1975-06-06
申请号：JP11914473
申请日：1973-10-22
IPC分类号： B23K7/00 , B23Q35/04 , B23Q35/129 , G05B19/4067

10. 发明专利

GB1484870A ELECTRIC CIRCUIT ARRANGEMENT 未知
公开(公告)号：GB1484870A
公开(公告)日：1977-09-08
申请号：GB4068874
申请日：1974-09-18
申请人： MESSER GRIESHEIM GMBH
IPC分类号： B23K9/127 , B23K7/00 , B23Q35/128 , B23Q35/129 , H02P7/00 , G05D3/04 , H02P7/28 , H02P7/68
摘要： 1484870 Automatic control of flame cutting GRIESHEIM GmbH 18 Sept 1974 [18 Sept 1973] 40688/74 Heading G3N [Also in Division H2] Circuits for controlling a photo-electric head and tool feed motors in a flame cutting machine each include anti-parallel thyristors controlled by respective amplifiers and phase shifters. The same voltage source provides power for the motor and the amplifiers, so that pulse signals of identical frequencies are supplied. As shown in Fig. 1, a photo-electric tracing head 10 carrying a light source 15 produces control signals indicative of the head position relative to a line 12. The signals are fed on a lead 13 to a control circuit 14 for a D.C. shunt wound servomotor 16 which turns the head 10 so as to follow the line 12. A synchro 18 resolves the movement of motor 16 into x and y components which are fed as command signals to circuits 19, 20 controlling coordinate tool feed motors 21, 22 of the same type as motor 16. Circuits 19, 20 are identical with circuit 14, and each includes anti parallel controlled rectifiers with associated firing circuits having respective amplifiers 25 and phase shifters 24 fed with pulse voltages. Motors 21, 22 drive a flame cutting device along a desired path. Details of the motor control circuits are given, Fig. 2 (not shown), see Division H2.

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