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21. 发明专利

JPH0671464A WELDING METHOD UTILIZING ELECTRON BEAM 失效
公开(公告)号：JPH0671464A
公开(公告)日：1994-03-15
申请号：JP22679592
申请日：1992-08-26
申请人： MITSUBISHI ELECTRIC CORP , TOYOTA MOTOR CORP
发明人： KUROKAWA TADAFUMI , MASAKI MASARU
IPC分类号： B23K15/00
摘要： PURPOSE:To form a weld bead having the large width shape by moving the electron beam while vibrating along a weld line. CONSTITUTION:A deflection coil is provided in an electron gun 1 and an oscillating current having rectangular waveform and sine waveform is supplied, by which the electron beam 2 is vibrated between two irradiation positions P3 and P4. When the interval X between irradiation places 7a and 7b becomes larger, the depth h1 of penetration of the central part of the weld bead 6 becomes smaller than the depth h2 of penetration on the irradiation places 7a and 7b and the width of penetration becomes larger. Consequently, since the width of penetration of the weld bead 6 can be enlarged as compared with the case in the past, it is not necessary to carry out positioning with high accuracy for materials 3 to be welded having variance on dimensions and shape.

22. 发明专利

JPH0471788A ALIGNMENT DETECTING DEVICE FOR ELECTRON BEAM MACHINE 失效
公开(公告)号：JPH0471788A
公开(公告)日：1992-03-06
申请号：JP18494390
申请日：1990-07-10
申请人： MITSUBISHI ELECTRIC CORP , TOYOTA MOTOR CORP
发明人： MASAKI MASARU , YAMAMOTO YOSHIHIRO
IPC分类号： G01B7/14 , B23K15/00 , H01J37/315
摘要： PURPOSE:To obtain an alignment detecting device of a high quality electron beam machine by providing an alignment decider to decide whether the axis of an electron beam agrees with the working position of a material to be machined. CONSTITUTION:Since a slit 24a is worked at such a degree that a focused electron beam 3 can pass with difficulty, when the position of the slit 24a deviates from the axis of the electron beam 3, all electron beam 3 can not pass the slit 24a. The electron beam 3 passing the slit 24a is caught by a collector 8A and its volume is detected by a resistor 2A. The volume of detected molecular beam is inputted by the alignment decider 27 and when the throughput is not 100%, the axis of the electron beam 3 is moved by an alignment coil 21. After positioning is accomplished, the material 4 to be machined is not set on behalf of the alignment detecting jig 24 to perform electron beam machining.

23. 发明专利

JPH01205892A METHOD FOR WELDING HIGH CARBON STEEL 失效
公开(公告)号：JPH01205892A
公开(公告)日：1989-08-18
申请号：JP2850688
申请日：1988-02-09
申请人： TOYOTA MOTOR CORP
发明人： SHIBATA YOSHINORI , MASAKI MASARU
IPC分类号： B23K26/21
摘要： PURPOSE:To prevent the crack generated at welding time of a high carbon steel by performing beam welding in two stages and composing so as to fill the crack generated on the beam part formed at the initial stage by a 2nd stage. CONSTITUTION:A 1st bead part 3 is formed by abutting members 1, 2 and melting the bead part by its heating. At this time, a crack 4 is generated at the position of about 2/3 A part from the upper face. A 2nd beam part 5 is formed by the re-heating sufficient to fill the crack generated at the 1st beam part 3 and less than the welding heat value of a 1st stage. The crack generated at the welding time of a high carbon steel can thus be prevented.

24. 发明专利

JPS63180392A FOCAL LENGTH ADJUSTING DEVICE FOR WORK LENS 失效
公开(公告)号：JPS63180392A
公开(公告)日：1988-07-25
申请号：JP1128887
申请日：1987-01-22
申请人： TOYOTA MOTOR CORP , MITSUBISHI ELECTRIC CORP
发明人： SANPEI KAZUHISA , NAGATA HIROSHI , MASAKI MASARU , TANAKA KEN
IPC分类号： G02B7/02
摘要： PURPOSE:To measure the focal length of a work lens by off machine by providing the work lens for laser and photodetecting means on the optical path of the visible laser light shaped in a cylindrical light and reading a focus position based on the annular pattern of a transmitting light. CONSTITUTION:The visible laser light 2 by an He-Ne laser device 1 is shaped by the optical mechanism 8 consisting of mirrors 3, 4 and a lens 6 in a cylindrical light 7. The cylindrical light 7 is then made incident on the work lens 9 for laser held on a work lens holder 10 to project a transmitting light 12 on the photodetecting face 14 of a photodetecting means 13. At this time the annular pattern of the transmitting light 12 on the photodetecting face 14 is observed at both positions A, C in the vertical direction of a focus position B to read the distance DB of the focus position B based on the distances DA, DC from the reference position of each position A, C. The difference in the visible light and the laser light for working is corrected further at the read focus position of the lens 9. The focal length of the work lens can thus be adjusted in an off machine state for a laser machine.

25. 发明专利

JPS59206130A Production of banjo type axle shaft 失效
标题翻译：生产班尼型轴瓦
公开(公告)号：JPS59206130A
公开(公告)日：1984-11-21
申请号：JP8053883
申请日：1983-05-09
申请人： Toyota Motor Corp
发明人： UENO KOUICHI , YASUKAWA SHIYOUKICHI , MASAKI MASARU , TOBI NOBUO
IPC分类号： B21D53/90
CPC分类号： B21D53/90
摘要： PURPOSE:To prevent serration between welded joint surfaces even if tube parts are deformed and to permit sure welding in a post stage by forming half-split drum parts and tube parts to a square sectional shape and subjecting the same to end cutting and welding then forming the tube parts to a round sectional shape. CONSTITUTION:An axle blank pipe 13 having half-split drum parts 11 and half-split tube parts 12, 12 of a square sectional shape is formed by pressing and drawing. The pipe is then subjected to end cutting to remove excess metals 14, 14 at the end faces and a half-cut axle pipe 15 is obtd. The pipes 15 are butted to each other and are welded along mating surfaces 16, by which an assembly 17 is obtd. The assemble 17 17 is consequently provided with the drum part 18 and tube part 19 having a square section. The part 19 is finally reduced or expanded to form a tube part 20 having a prescribed round sectional shape, thereby manufacturing a banjo type axle shaft 21. Therefore even if the half- split tube parts 12 subjected to the drawing are deformed 12' with respect to a line L by a spring back, no serration arises at the surfaces 16.
摘要翻译：目的：为了防止焊接接头表面之间的锯齿，即使管部件发生变形，并且通过将半分离的滚筒部件和管部件形成为正方形截面形状并允许其结束切割和焊接，然后形成管部分呈圆形截面形状。构成：具有半分割鼓部11和方形截面形状的半分割管部12,12的轴坯管13通过压制而形成。然后对管子进行端部切割以在端面处去除多余的金属14,14，并且可以看到半切的轴管15。管15彼此对接并且沿着配合表面16焊接，通过该配合表面16可以看到组件17。因此，组件17 17设置有鼓部18和具有正方形截面的管部19。部件19最终被缩小或膨胀以形成具有规定的圆形截面形状的管部分20，从而制造班卓叉车轴21.因此，即使受到拉拔的半剖开管部分12相对于通过弹簧返回到线L，在表面16处不产生锯齿。

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