专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH097436A POWER TRANSMISSION CABLE OF PIPE CIRCUMFERENCE AUTOMATIC WELDING EQUIPMENT 失效
公开(公告)号：JPH097436A
公开(公告)日：1997-01-10
申请号：JP17392395
申请日：1995-06-19
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： BANRAI YUUICHI , MIZUKAMI SEIJI , MIBU IKUO , ITO KOJI
IPC分类号： B23K9/32 , H01B11/00 , H05K9/00
摘要： PURPOSE: To prevent deformation of a pulse current waveform when a pulse period is hightened, and improve welding efficiency by using a coaxial cable for DC pulse power transmission as an electric power supply cable. CONSTITUTION: The outer peripheral of a central conductor 13 is covered with an insulator 14, and a coaxial conductor 15 is also provided, and a power transmission cable 20 where the outer periphery of the conductor 15 is covered with an insulator 16 is used as a cable to supply electric power to a welding torch from a welding power source of a pipe circumference automatic welding equipment. In this cable 20, large reactance of a power transmission cable is offset by plus side power transmission and minus side power transmission, and inductance can be reduced, and a shape retaining high frequency pulse having a rectangular wave of 300 to 800Hz is transmitted, and a short arc length causing no sputtering can be realized. Therefore, the power transmission cable of the pipe circumference automatic welding equipment whose specific welding quantity is increased and welding speed is fast and welding quality is high, can be obtained.

2. 发明专利

JPH10193106A METHOD FOR AUTOMATICALLY WELDING CIRCUMFERENCE OF TUBE AND CONTROLLER THEREFOR 失效
公开(公告)号：JPH10193106A
公开(公告)日：1998-07-28
申请号：JP35765696
申请日：1996-12-29
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： ANAMIZU TAKASHI , BANRAI YUUICHI , MIZUKAMI SEIJI , MIBU IKUO , MAEDA KENICHI
IPC分类号： B23K9/00 , B23K9/028 , B23K9/073 , B23K9/095 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To improve the welding speed and the bead appearance by using a pre-set welding mode judging logic table and automatically changing a pulse arc welding and a shot arc welding corresponding to the welding condition in the advancing stage of welding in the time of welding the total circumference of tube ends fixed with butting. SOLUTION: In comparison with the welding mode judging logic table which is pre-set corresponding to the arc characteristic condition, the condition between layers, the welding attitude, and these respective conditions, and the laminating logic table based on the information inputted in an automatic welding controller of the laminated numbers 1 to 6, the laminate height h1 to h6 , the laminate width w1 to w2 , the welding position in the circumferential direction, the welding attitude, etc., the welding mode in each welding site is judged automatically and the suitable welding parameter is set. Further, based on this welding parameter, the operation program is made, following this, welding is started, corresponding to the welding object, the welding mode is changed automatically as it is pre-set.

3. 发明专利

JPH10193116A LEFT/RIGHT WEAVING WIDTH CORRECTION METHOD IN AUTOMATIC TUBE CIRCUMFERENCE WELDING MACHINE 失效
公开(公告)号：JPH10193116A
公开(公告)日：1998-07-28
申请号：JP35765896
申请日：1996-12-29
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： ANAMIZU TAKASHI , BANRAI YUUICHI , MIZUKAMI SEIJI , MIBU IKUO , MAEDA KENICHI
IPC分类号： B23K9/173 , B23K9/00 , B23K9/028 , B23K9/09 , B23K9/095 , B23K9/12 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To precisely conduct control of an automatic tube circumference welding machine. SOLUTION: When conducting whole circumference welding to end faces of two tubes by pulse MAG welding method, two dimensional weaving of torch is conducted along a groove of a tube. In this case, electric current pulse cycles at left/right ends of weaving (161) as well as arc short circuiting times at left/ right ends (143) are obtained, based on the obtained arc short circuiting times at left end/right end, the left/right pulse cycles are respectively corrected (163), a larger one of the corrected electric current cycles at each end of left/right is made to a correction electric current pulse cycle, the corrected electric current cycle is compared with an upper limit value and lower limit value decide beforehand, a weaving width is corrected so that a left/right weaving width in the part is decreased in the case of being larger than the upper limit value and a left/right is increased in the case of being smaller than the lower limit value (147).

4. 发明专利

JPH10197220A METHOD AND INSTRUMENT FOR MEASURING SHAPE OF BEVELING 失效
公开(公告)号：JPH10197220A
公开(公告)日：1998-07-31
申请号：JP35761796
申请日：1996-12-29
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： ANAMIZU TAKASHI , BANRAI YUUICHI , MIZUKAMI SEIJI , MIBU IKUO , ITO KOJI
IPC分类号： G01B11/24 , B23K9/095 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To provide a method and instrument for measuring shape of beveling by which the shape of a narrow beveling having steep groove faces can be measured quickly with an inexpensive instrument. SOLUTION: A beveling shape measuring instrument 10 is composed of a laser displacement gauge 11, the scanning means 13 of the gauge 11, and an arithmetic means 19. Fig. B shows the data obtained when the shape of a beveling is measured by scanning the beveling with the gauge 11 and the signals of the gauge 11 and scanning means 13 are respectively plotted on the Z-axis and X-axis. It can be understood from Fig. B that vertical walls 5 and 5' exist between points B and C and between points G and H at which the variation of the Z-value in one pitch is equal to or larger than the height of the wall 5 and the vertical walls 7 and 7' of a lip section exist between points D and E and between points E and F at which the variation of the Z-value is smaller than the height of the wall 5 and equal to or larger than the height of the wall 7.

5. 发明专利

JPH10193126A NARROW GROOVE WELDING HEAD AND ITS WELDING METHOD 失效
公开(公告)号：JPH10193126A
公开(公告)日：1998-07-28
申请号：JP35761696
申请日：1996-12-29
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： ANAMIZU TAKASHI , BANRAI YUUICHI , MIZUKAMI SEIJI , MIBU IKUO , ITO KOJI
IPC分类号： B23K9/173 , B23K9/00 , B23K9/12 , B23K9/29 , B23K9/30 , B23K37/02
摘要： PROBLEM TO BE SOLVED: To improve weld zone quality and welding efficiency by using a torch that turns reversely around the shaft and a welding head equipped with a welding tip that projects a welding wire in an oblique direction against the torch axis, reversing the torch with 180 deg., and welding while the welding wire is slid and reciprocated inside the groove. SOLUTION: Welding is performed such that first the core of a torch 11 is aligned to the crosswise center of a groove 101 by means of a torch crosswise feeding mechanism 5, that the lower end of the torch 11 is brought into the groove 101 by moving a torch vertical feeding mechanism 7, and that a welding power source is turned on at a proper position. Weaving of a wire 39 is carried out not in the first layer at the bottom of the groove, but after reaching an upper layer. In addition, the weaving is so designed that the torch shaft 37 is reversely turned by means of a torch rotating mechanism 31 and that a circular arc reciprocating oscillation is imparted to the wire 39 projected obliquely downward from the welding tip 38. The weaving width is performed by the rotational angle of the torch 11, as is the speed control by the torch rotating motor 21, while the crosswise profiling control of the groove 101 is carried out by the crosswise feeding mechanism 5.

6. 发明专利

JPH10193115A WEAVING LOCUS CORRECTION METHOD IN AUTOMATIC TUBE CIRCUMFERENCE WELDING MACHINE 失效
公开(公告)号：JPH10193115A
公开(公告)日：1998-07-28
申请号：JP35766096
申请日：1996-12-29
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： ANAMIZU TAKASHI , BANRAI YUUICHI , MIZUKAMI SEIJI , MIBU IKUO , MAEDA KENICHI
IPC分类号： B23K9/173 , B23K9/00 , B23K9/028 , B23K9/09 , B23K9/095 , B23K9/12 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To precisely conduct control of an automatic tube circumference welding machine. SOLUTION: When conducting whole circumference welding to end faces of two tubes by pulse MAG welding method, two dimensional weaving of torch is conducted along a groove of a tube. In this case, electric current pulse cycles at left/right parts in a horizontal travel part of weaving (146) as well as average values of an arc short circuiting times at left/right parts (145) are obtained, based on the obtained arc short circuiting times, the left/right pulse cycles are respectively corrected (201), the corrected electric current cycles at each part of left/right are compared with an upper limit value and lower limit value decide beforehand, a weaving locus is corrected so that a torch height in the part is decreased in the case of being larger than the upper limit value and a torch height is increased in the case of being smaller than the lower limit value (147).

7. 发明专利

JPH10193102A METHOD FOR DRIVING HEADS IN TWO-HEAD TYPE CIRCULAR AUTOMATIC WELDING DEVICE 失效
公开(公告)号：JPH10193102A
公开(公告)日：1998-07-28
申请号：JP35761396
申请日：1996-12-29
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： ANAMIZU TAKASHI , BANRAI YUUICHI , MIZUKAMI SEIJI , MIBU IKUO , ITO KOJI
IPC分类号： B23K9/00 , B23K9/028 , B23K9/12 , B23K9/127 , B23K37/02
摘要： PROBLEM TO BE SOLVED: To provide a head driving method for a two-head type circular automatic welding device which can improve the welding efficiency by shortening the idle running time of the welding head. SOLUTION: The left side welding head is started counterclockwise from a point L1 when the arc is on, and the right side welding head is started in the waste running counterclockwise from a point R1 so as to run after the left side welding head when the left side welding head reaches a point L2 apart from the point L1 by 0.5L. However, the distance allowing this head to idle-run after the other head, is to a point R2 apart from the R1 by 0.5L. Successively, when the left side welding head reaches a point L3 apart from the point L2 by 0.5L, the right side head can start toward a point R3 from the R2. The timing of the arc starting of the right side welding head is set so that the right side welding head reaches a point R4 apart from a point L4 by the interference avoiding distance L in a predict time by predicting a reaching time to the point L4 of the left side welding head.

8. 发明专利

JPH10193100A CONTROL PANEL FOR AUTOMATIC WELDING EQUIPMENT 失效
公开(公告)号：JPH10193100A
公开(公告)日：1998-07-28
申请号：JP35761596
申请日：1996-12-29
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： ANAMIZU TAKASHI , BANRAI YUUICHI , MIZUKAMI SEIJI , MIBU IKUO , ITO KOJI
IPC分类号： B23K9/00 , B23K9/028 , B23K9/095
摘要： PROBLEM TO BE SOLVED: To prevent a temperature rise of the equipment without bringing the outside dust or water into a control panel by exchanging the heat between the air inside the control panel of sealed structure in which the control equipment such as a personal computer or a servo amplifier are stored with the outside air. SOLUTION: The inside of a heat exchanger 6 arranged along a rear side 21 of a control panel 1 is partitioned in the longitudinal direction by a heat radiation plate 28 extending in the vertical direction which is a thin corrugated metallic plate, and the heat is easy to transfer though it is partitioned. An in-panel air suction port 25 and an in-panel air discharge port 29 are opened in the upper part and in the lower part of an internal wall 23 inside the panel 7 of the heat exchanger 6, and the part between the ports is an in-panel air flow passage 27 extending in the vertical direction. A fan 31 is provided on the in-panel air discharge port 29, and the air in the panel 7 is cooled with the outside air through a heat radiation plate 28 during the circulation. An outside air discharge port 41 and an outside air suction port 49 are opened in a rear wall of the heat exchanger 6, a fan 43 is provided on an outside air discharge port 41 to circulate the outside air, and the in-panel air is cooled through the heat radiation plate 28.

9. 发明专利

JPH1158075A PIPE INNER CLAMPING DEVICE 失效
公开(公告)号：JPH1158075A
公开(公告)日：1999-03-02
申请号：JP22296897
申请日：1997-08-06
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： BANRAI YUUICHI , MIBU IKUO , ITO KOJI
IPC分类号： F16B7/04 , B23K37/053
摘要： PROBLEM TO BE SOLVED: To obtain a clamping device, in which the centering of a pipe and the interval setting between the pipe ends are uniformly, properly and easily executed over the whole periphery of the pipe end surface, by mechanizing a spacer for setting a root gap, incorporating into the device and arranging a means for abutting the spacer on the end surface of the pipe at the existing side. SOLUTION: A pad 23 is pushed to the inner surface of the existing pipe 3 with a rear part clamp 20 to fix the inner clamping device l to the inner surface of the pipe. The spacer 151 comes near a main frame flange 15 side fixed to the existing pipe 3 by using an actuator 31 for matching the end surface. The actuators 31 are arranged at three positions in the circumferential direction and the spaces 151 are shifted to the deep side until the whole spacers 151 are brought into contact with the end surface of the existing pipe 3. Since the swingable and slidable spherical bearing 40 exists between a main frame 11 and the spacer 151, the spacer 151 is pushed so as to follow to the end surface of the existing pipe 3, and all of the spacers 151 at three positions are abutted on the end surface root part 3-2 of the existing pipe 3.

10. 发明专利

JPH10193117A LEFT/RIGHT ARC COPYING CORRECTION METHOD IN AUTOMATIC TUBE CIRCUMFERENCE WELDING MACHINE 失效
公开(公告)号：JPH10193117A
公开(公告)日：1998-07-28
申请号：JP35765996
申请日：1996-12-29
申请人： TOKYO GAS CO LTD , HITACHI ENG SERVICE
发明人： ANAMIZU TAKASHI , BANRAI YUUICHI , MIZUKAMI SEIJI , MIBU IKUO , MAEDA KENICHI
IPC分类号： B23K9/173 , B23K9/00 , B23K9/028 , B23K9/09 , B23K9/12 , B23K9/127
摘要： PROBLEM TO BE SOLVED: To precisely conduct control of an automatic tube circumference welding machine. SOLUTION: When conducting whole circumference welding to end faces of two tubes by a pulse MAG welding method, two dimensional weaving of torch is conducted along a groove of a tube. In this case, electric current pulse cycles at left/right ends of weaving (161) as well as arc short circuiting times at left/right ends (143) are obtained, based on the obtained arc short circuiting times at left end/right end, the left/right pulse cycles are respectively corrected (163), based on the corrected short circuiting times at left/right ends, an electric current value at a weaving left part and an electric current at a weaving right part are separately obtained (128), based on a difference between both electric current, a weaving center of torch is shifted by a correcting quantity corresponding to the difference in the direction to eliminating both electric current difference (129, 130).

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式