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11. 发明专利

JP2007294466A High-frequency induction heating method 审中-公开
标题翻译：高频感应加热方法
公开(公告)号：JP2007294466A
公开(公告)日：2007-11-08
申请号：JP2007131593
申请日：2007-05-17
申请人： Dai Ichi High Frequency Co Ltd , 第一高周波工業株式会社
发明人： WATANABE YASUO , SOJI YOSHINOBU , TADA FUMIAKI , NISHIBABA KAZUNORI , OKI MITSUO , YATABE KENJI
IPC分类号： H05B6/10 , C22B9/16 , C23C4/18
CPC分类号： Y02P10/253
摘要： PROBLEM TO BE SOLVED: To provide a high-frequency induction heating method in which a surface layer part of a screw shaft is enabled to be induction-heated while suppressing temperature differences between a convex line and a groove bottom part to be small. SOLUTION: When electric power is supplied to an inducer 17 equipped with induction operation parts 17a, 17b arranged in parallel with the screw shaft 1 in the direction of an arrowhead C to raise and keep temperature of the screw shaft 1 at a prescribed temperature, an energizing frequency is set so that a depth of current penetration will become within a range of 1/2.5 or less and 0.3 mm or more of the width of the convex line in the flow direction of induction current. By this, shortage of heating of the convex line 2 and overheating at corner parts are prevented, and temperature unevenness is suppressed to be small. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种高频感应加热方法，其中螺杆轴的表面层部分能够被感应加热，同时抑制凸线和凹槽底部之间的温度差小。
解决方案：当向具有与螺杆轴1平行布置的感应操作部分17a，17b的引导器17向箭头C的方向供电时，将螺杆轴1的温度升高并保持在规定的温度设定通电频率使得电流穿透深度在感应电流的流动方向上的凸线宽度的1 / 2.5以下至0.3mm以上的范围内。由此，防止了凸线2的加热不足和角部的过热，并且将温度不均匀性抑制得较小。版权所有（C）2008，JPO＆INPIT

12. 发明专利

JP2005120415A Method and device for quenching rolling contact face of metallic slewing ring 审中-公开
标题翻译：金属圈圈滚动接触面的方法和装置
公开(公告)号：JP2005120415A
公开(公告)日：2005-05-12
申请号：JP2003355785
申请日：2003-10-16
申请人： Dai Ichi High Frequency Co Ltd , 第一高周波工業株式会社
发明人： WATANABE YASUO , MIYAGAWA TADANOBU , TANABE MICHIO
IPC分类号： C21D1/10 , C21D1/18 , C21D9/40
CPC分类号： Y02P10/253
摘要： PROBLEM TO BE SOLVED: To prevent a soft zone from forming on a rolling contact face of a metallic slewing ring with a large diameter, even when quenching the face by using induction heating. SOLUTION: The method for quenching a rolling contact face of a metallic slewing ring 23 by using induction heating comprises arranging a heating inductor 30 so as to oppose the rolling contact face, heating the whole perimeter of the face, and then cooling the heated portion. The method further comprises heating and quenching the rolling contact face, while moving the inductor 30 in a width direction of the rolling contact face with an elevating mechanism 42; quenching it while cooling a reverse face; quenching it after having increased the surface power flux density; and quenching it after having insulated a cable way. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止在具有大直径的金属回转支承的滚动接触面上形成软区域，即使使用感应加热来淬火面部也是如此。解决方案：通过使用感应加热来淬火金属回转环23的滚动接触面的方法包括将加热电感器30布置成与滚动接触面相对，加热面的整个周边，然后冷却加热部分。该方法还包括加热和淬火滚动接触面，同时用升降机构42使电感器30在滚动接触面的宽度方向上移动; 在冷却反面时淬火; 在增加表面功率通量密度后淬火; 并在绝缘电缆方式后淬火。版权所有（C）2005，JPO＆NCIPI

13. 发明专利

JP2003320421A Method and device for bending metal wire material 有权
标题翻译：用于弯曲金属材料的方法和装置
公开(公告)号：JP2003320421A
公开(公告)日：2003-11-11
申请号：JP2002127514
申请日：2002-04-26
申请人： Dai Ichi High Frequency Co Ltd , 第一高周波工業株式会社
发明人： WATANABE YASUO , TADA FUMIAKI , YATABE KENJI , MIYAGAWA TADANOBU
IPC分类号： B21D7/16 , B21D7/00
摘要： PROBLEM TO BE SOLVED: To prevent a metal wire material from being folded or broken after bending even when the metal wire material such as a steel pipe is bent at a small radius by the compressive bending. SOLUTION: In a bending method, a metal wire material 1 is heated by a heating device 5 and advanced, a heated part (A point) is bent and deformed by turning a bending arm 3, and a part immediately after thereof is cooled. In the method, the load F toward the bending center O is applied to the metal wire material 1 during bending by a load application means 11, and the bending moment in the normal direction is applied to the base C of an arm clamp. One part of the bending moment in the reverse direction acting on the base C of the arm clamp by the propulsive force P is offsetted by the applied bending moment. Thus, the generation of the excessive bending moment in the reverse direction is prevented, as a result, the neck folding is prevented. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了防止金属丝材料在弯曲后折叠或断裂，即使当诸如钢管的金属丝材料通过压缩弯曲以小的半径弯曲时。解决方案：在弯曲方法中，金属线材1被加热装置5加热并且前进，加热部分（A点）通过转动弯曲臂3而弯曲和变形，并且其后紧接着的部分是冷却。在该方法中，向弯曲中心O施加的载荷F通过载荷施加装置11在弯曲期间施加到金属丝材料1，并且沿法线方向施加弯曲力矩到臂夹的基部C. 通过推进力P作用在臂夹的基座C上的相反方向的弯矩的一部分被施加的弯矩抵消。因此，防止了相反方向产生过大的弯矩，结果防止了颈部折叠。版权所有（C）2004，JPO

14. 发明专利

JP2002213942A METHOD AND INSTRUMENT FOR MEASURING DIMENSION OF CURVED LONG MATERIAL 失效
公开(公告)号：JP2002213942A
公开(公告)日：2002-07-31
申请号：JP2001006649
申请日：2001-01-15
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： WATANABE YASUO , NISHIBABA KAZUNORI , MATSUMOTO NOBUHIKO
IPC分类号： G01B5/20 , G01B5/213 , G01B5/24 , G01B21/20 , G01B21/22
摘要： PROBLEM TO BE SOLVED: To easily and accurately measure the dimensions such as a bent angle, a bent radius and a bending boundary position of a curved long material such as a bent tube. SOLUTION: An origin O and a reference line (X-axis) passing through the origin O are set on the bending center side of a long material having a curved line part 1a, and a front straight line part 1b and a rear straight line part 1c in its both ends, the radius vectors (dispances) and deflection angles up to three points set optionally respectively in the curved line part, and the front straight line part and the rear straightline part from the origin O are measured to specify the bent angle θ by an expression shown in mathematical expression 1 in the claim 1, to specify the bent radius R by an expression shown in mathematical expression 2 in the claim 1, and to specify bent boundary deflection angles θS, θE in the both front and rear ends by an expression shown in mathematical expression 3 in the claim 1, based on measured values hereinbefore.

15. 发明专利

JP2001225229A METHOD OF MANUFACTURING FOR ROTOR 失效
公开(公告)号：JP2001225229A
公开(公告)日：2001-08-21
申请号：JP2000038889
申请日：2000-02-16
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： WATANABE YASUO , FUJITA MASATSUGU
IPC分类号： B23P11/02 , F16C13/00
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing for a rotor that prevents a sleeve fitted on a rotor body from slipping on the rotor body circumferentially even when used under severe conditions. SOLUTION: For the manufacture of a roller 1A with a sleeve 3 fitted on a rotor body 2, an external surface 5 of the rotor body 2 is shaped to have circumferentially changing distances to an axis of rotation center O-O. A cylindrical metal body 3A is loosely fitted about the external surface 5, and is subjected to axially compressing hot upsetting, which increases its wall thickness and fits it on the external surface 5 of the rotor body 2. The external surface of the thick-walled cylindrical metal body 3B is machined into a cylindrical surface centered on the axis of rotation center O-O. That fitting surface in the obtained roller 1A which is between the sleeve 3 and the rotor body is not a cylindrical surface centered on the axis of rotation center O-O, such that the sleeve 3 is incapable of a rotation on the axis O-O relative to the rotor body and is thus protected against a circumferential slip.

16. 发明专利

JP2001150026A METHOD AND DEVICE TO ADJUST RING MATERIAL 失效
公开(公告)号：JP2001150026A
公开(公告)日：2001-06-05
申请号：JP33198099
申请日：1999-11-22
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： WATANABE YASUO , MINAGAWA TSUGIO , MIYAGAWA TADANOBU
IPC分类号： B21D3/00 , B21D3/14
摘要： PROBLEM TO BE SOLVED: To provide a method to adjust a large diameter ring material to be a complete round as much as possible. SOLUTION: To adjust a ring material 1, a ring material 1 is heated to be expanded by thermal expansion so that it can be fixed with an adjusting jig 4 inside. The adjusting jig 4 has a complete round outer shape and while it is fixed inside the ring material 1, the ring material 1 is cooled down and shrinks to fit the outside of the adjusting fixture 4, so that hooping force for tightening the adjusting jig 4 is generated in the ring material. This restricts the ring material 1 to fit the fixture 4's outer shape and adjust its flat shape.

17. 发明专利

JPH1147871A METALLIC BAR STOCK SWAGING METHOD AND ITS DEVICE 失效
公开(公告)号：JPH1147871A
公开(公告)日：1999-02-23
申请号：JP22067697
申请日：1997-08-01
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： WATANABE YASUO , YOSHITOME TAKAHIRO
IPC分类号： B21J5/08 , B21J1/06
摘要： PROBLEM TO BE SOLVED: To provide a method and device capable of swaging a bar stock without generating any bending. SOLUTION: In the swaging method forming a heated part 5 by partially heating a bar stock 1 with a heating device 4 and providing a compressing force while transferring the heated part with respect to the bar stock to thick its section, the displacement from the axial center of the bar stock part 1a positioning behind the heated part 5 is detected with a first displacement detecting means 16, a load is applied to the bar stock part 1a with a first bending straightening means 20 so as to eliminate the displacement, at the same time, the displacement from the axial center of the bar stock part 1b positioning behind part 5 is detected with a second displacement detecting means 28, the load is applied to the bar stock part 1b with a second bending straightening means 30 so as to eliminate the displacement, and swaging is executed under the state not generating the difference in level in the heated part 5.

18. 发明专利

JPH06269860A BENDING DEVICE FOR METALLIC TUBE 失效
公开(公告)号：JPH06269860A
公开(公告)日：1994-09-27
申请号：JP8268793
申请日：1993-03-17
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： WATANABE YASUO , MIZUTANI KENICHI
IPC分类号： B21D7/024 , B21D7/025 , B21D7/16
摘要： PURPOSE:To prevent deflection that is often generated on a straight tube part at the time of bending a metallic tube and to enable continuous feeding of a metallic tube. CONSTITUTION:In a bending device that is provided with a heating device 12 for heating a metallic tube 11 annularly and locally and a bending arm 17 by which the tip end of the metallic tube is clamped and turned; a pair of caterpillar type driving devices 20 in order to hold the metallic tube between them near the heating device 12, and pressing means 21 for pressing the devices 20 to the side of the metallic tube are provided; a thrust is imparted on the metallic tube 11 by means of a pair of caterpillar type driving devices 20 that are pressed to the side of the metallic tube; and the tube is advanced through the heating device 12.

19. 发明专利

JPH0687027A METHOD FOR BENDING METALLIC TUBE 失效
公开(公告)号：JPH0687027A
公开(公告)日：1994-03-29
申请号：JP32154191
申请日：1991-11-11
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： WATANABE YASUO , FUJITA MASATSUGU
IPC分类号： B21D7/024 , B21D7/16
摘要： PURPOSE:To reduce the working cost by restraining an arm then at once releasing deflection at an unworked part on the working rear end side between a metallic tube and a device for giving bending moment. CONSTITUTION:The worked front end side of the metallic tube 1 is clamped by a clamp 4A to a freely rotatable arm 4 through a heating device 6. As the metallic tube 1 is heated by the heating device 6, a heating part 2 is moved relatively by a moving device 5 in the longitudinal direction of the tube 1, the bending moment is given to deform the tube, directly thereafter the metallic tube 1 is cooled by the cooling means 6A and bent. Then, when the bending angle arrives at a set value, heating and the relative movement of the heating part 2 are stopped and at the same time, the arm is restrained and deflection between the metallic tube 1 and the device for giving the bending moment is released at once at the unworked part on the working rear end side. In this way, after bending is completed, and it is obviated that the tube is taken out of the heating device and is corrected.

20. 发明专利

JPS62168617A BENDING DEVICE FOR METAL PIPE 失效
公开(公告)号：JPS62168617A
公开(公告)日：1987-07-24
申请号：JP798786
申请日：1986-01-20
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： WATANABE YASUO , TAKAMORI HIDEYUKI , YAMAGUCHI JOSUKE , NOGUCHI YOSHITOSHI , AOKI TAKAO
IPC分类号： B21D7/16
摘要： PURPOSE:To perform the bending of a steel pipe with an optional bending radius by a simple device by fitting the device to cool locally and annularly same as the device to heat a metal pipe locally and annularly and by heating and cooling at the optional position of the steel pipe. CONSTITUTION:The end part at one part of a steel pipe 1 is fixed to the whirling arm 4 with O as the center line of rotation,the intermediate part thereof is held by a clamp 5 and a metal rod 13 is inserted from the other end part as well, the heating advice 2 of an induction heating coil, etc., is fitted to the tip thereof, further a cooling device 3 is arranged at the outside of the steel pipe. In case of bending the steel pipe 1 at the necessary pace, the heating device inside the steel pipe is moved to the necessary position by the rotation of a screw shaft 14 and the steel pipe 1 is annularly heated and softened by feeding from a transformer 13. The steel pipe is subjected to bending at the heating position by the clamp 5 by driving hydraulic cylinder 6 with the command from a controller 10, thereafter it is annularly cooled by the cooling water, etc., from the cooling device 3 and the steel pipe is simply bent by the optional bending radius at an optional position.

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