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61. 发明专利

JP2002052468A DETACHABLE SPEED INCREASING TRUING DEVICE 失效
公开(公告)号：JP2002052468A
公开(公告)日：2002-02-19
申请号：JP2000245860
申请日：2000-08-14
申请人： TOYODA VAN MOPPES LTD , TOYODA MACHINE WORKS LTD
发明人： UNNO KUNIHIKO , KITAJIMA MASATO , HIRAIWA NOBORU , YAMAGUCHI MASAKAZU , MUKAI RYOHEI
IPC分类号： B24B53/12
摘要： PROBLEM TO BE SOLVED: To provide a small truing device adaptable to a general grinder using a super abrasive grain grinding wheel and capable of rotating a truing tool at a high speed without requiring a separate electric motor for rotationally driving the truing tool. SOLUTION: A device body is detachably mounted on a table where a work rotation driving device for the grinder is provided, and a driving member, an output member and a tool support are rotatably supported on a supporting shaft fixed to the device body. The rotation transmitted from the work rotation driving device to the driving member is increased in speed by a speed increasing mechanism and then transmitted to the output member and the rotation of the output member is transmitted to the tool support via joint means, thus causing the truing of the super abrasive grain grinding wheel with the truing tool mounted on the tool support.

62. 发明专利

JPH1128668A GRINDING WHEEL FOR HIGH SPEED GRINDING AND ITS INSTALLING METHOD 失效
公开(公告)号：JPH1128668A
公开(公告)日：1999-02-02
申请号：JP19516497
申请日：1997-07-04
申请人： TOYODA MACHINE WORKS LTD
发明人： IMAI TOMOYASU , MUKAI RYOHEI , NISHI KOJI , KITAJIMA MASATO
IPC分类号： B24D5/06 , B24D5/16
摘要： PROBLEM TO BE SOLVED: To install a grinding wheel having a core member which consists of a laminate member made of a fiber reinforced plastic(FRP), in the scope not peeling the laminate member, and to make the grinding wheel bear to a high speed rotation. SOLUTION: A grinding wheel 1 which consists of a core member 11 made of an FRP, and formed by laminating the FRP in a laminate form; and a grinding wheel segment 12 installed on the outer periphery of the laminate core member 11 by an adhesive means and the like; is provided. At both side surfaces of the core member 11 of the grinding wheel 1, flanges 2 and 2' which consist of a rigid body form of plate are provided. Through the flanges 2 and 2', the grinding wheel 1 is installed to the tip 31 of the shaft of a rotary shaft 3 rotating at a high speed, by a fastening means 5 which consists of a bolt or the like. The surface pressure at the core member 11 formed by the fastening force of the fastening means 5 is made less than 15 N/mm .

63. 发明专利

JPH0890408A GRINDING METHOD 失效
公开(公告)号：JPH0890408A
公开(公告)日：1996-04-09
申请号：JP23173594
申请日：1994-09-27
申请人： TOYODA MACHINE WORKS LTD
发明人： IMAI TOMOYASU , KITAJIMA MASATO , MUKAI RYOHEI , KATSUTA MAMORU
IPC分类号： B24B49/02 , B24B5/00 , B24B5/01 , B24B5/42 , F16C3/06
摘要： PURPOSE: To enhance the roundness and grinding accuracy in the grinding method of a cylindrical part of a work of low rigidity without increasing the manufacturing cost. CONSTITUTION: A grinding machine is equipped with a grinding wheel 21 which moves with respect to a work W in two directions of the X direction crossing the Z direction which is parallel to the axis of rotation of the work W. The work W is rough ground through flunge grinding up to the diameter leaving a specified finishing machining allowance as measuring the part Wd of a cylindrical part Wa of the work with a sizing device, after which a center rest device 40 is abutted on the part Wd of the cylindrical part Wa after the midway of rough grinding but before the point of time of contour grinding and the machine coordination system in the X direction is reset based on the output signal of the sizing device at the point of time of completing rough grinding. The cylindrical part Wa and a corner part Wb is given a finishing grind up to the finishing dimensions by contour grinding based on the resetted machine coordination system as leaving the center rest device 40 abutted on the cylindrical part Wa.

64. 发明专利

JPH07116963A GRINDING WHEEL 失效
公开(公告)号：JPH07116963A
公开(公告)日：1995-05-09
申请号：JP26896393
申请日：1993-10-27
申请人： TOYODA MACHINE WORKS LTD
发明人： KITAJIMA MASATO , FUKAMI HAJIME , NISHI KOJI
IPC分类号： B24D3/00 , B24D5/06
摘要： PURPOSE:To reduce the weight of a grinding wheel for stabilizing its strength by applying aluminum powder metallurgy alloy consisting of aluminum alloy powder and metalloid silicon powder to the material of a core. CONSTITUTION:A segment chip 11 is adhered to a core 10 through the first adhesion layer 12, and the segment chips 11 are mutually adhered through the second adhesion layer 13 for forming a grinding stone wheel. In this case, an aluminum powder metallurgy alloy consisting of aluminum alloy powder and metalloid silicon powder is applied to the material of a core 10. The rate of silicon powder in the aluminum powder metallurgy alloy is set up to be more than 20% in weight. Thus the grinding stone wheel is very light, and its strength is stabilized, and the separation of the segment chip 11 being a grinding stone layer to the core 10 is dissolved.

65. 发明专利

JPH0796464A VITRIFIED GRINDING WHEEL WITH SUPER HARD ABRASIVE GRAIN 失效
公开(公告)号：JPH0796464A
公开(公告)日：1995-04-11
申请号：JP24184993
申请日：1993-09-28
申请人： TOYODA MACHINE WORKS LTD
发明人： KITAJIMA MASATO , SOMA SHINJI , KAMIYA AKIMITSU
IPC分类号： B24D3/02 , B24D3/14
摘要： PURPOSE:To strengthen the bonding force of the vitrified bond of a vitrified grinding wheel with super hard abrasive grain, prevent the abrasion of the bonding agent by relatively long cutting dust to be produced in grinding steel material, increase the grinding ratio, and improve the cutting quality. CONSTITUTION:In a vitrified CBN grinding wheel 1 where CBN abrasive grains 4 are bonded by the vitrified bond 5 to be sintered, CBN fine powder 6 or diamond fine powder is provided in the vitrified bond 5.

66. 发明专利

JPH06278032A MANUFACTURE OF ELECTRODEPOSITION GRINDING WHEEL 失效
公开(公告)号：JPH06278032A
公开(公告)日：1994-10-04
申请号：JP9052993
申请日：1993-03-26
申请人： TOYODA MACHINE WORKS LTD
发明人： KITAJIMA MASATO , FUKAMI HAJIME , NISHI KOJI
IPC分类号： B24D3/00 , B24D3/06
摘要： PURPOSE:To increase the projection height of abrasive grains exposed from a plating layer so as to extend the life of a grinding wheel by enabling even large-diameter abrasive grains to be attracted, and making the thickness of the plating layer as small as possible, and permitting the abrasive grains to maintain a strong holding force against grinding resistance. CONSTITUTION:Abrasive grains 2 previously covered with a magnetic conductive coating 22 with some of them left exposed are dispersed in a plating liquid 11 and magnetically attracted to the surface of a grinding wheel core 1 magnetized by a magnet 23 inside a plating bath 10, so that the abrasive grains are eletrodeposited by electroplating.

67. 发明专利

JPH06246601A GRINDING METHOD 失效
公开(公告)号：JPH06246601A
公开(公告)日：1994-09-06
申请号：JP3843993
申请日：1993-02-26
申请人： TOYODA MACHINE WORKS LTD
发明人： IMAI TOMOYASU , KITAJIMA MASATO , MUKAI RYOHEI , TSUTSUI TOSHIHIRO , YOSHIMI TAKAYUKI
IPC分类号： B24B1/00 , B24B5/00 , B24B5/04 , B24B41/06
摘要： PURPOSE:To prevent the dither mark from being generated when the outer circumference of a work is ground. CONSTITUTION:A grinder 16 is relatively moved to a work W in the direction of the axial line of the work rotation, and when the partly grinding of the outer circumference of the work W is completed, a shoe 51 is advanced to make this shoe 51 abutted on the partly ground part of the outer circumference of the work W. In this condition, the rest of the outer circumference of the work W is ground.

68. 发明专利

JPH06155299A COOLING METHOD OF GRINDING WHEEL 失效
公开(公告)号：JPH06155299A
公开(公告)日：1994-06-03
申请号：JP31688292
申请日：1992-11-26
申请人： TOYODA MACHINE WORKS LTD
发明人： IMAI TOMOYASU , KITAJIMA MASATO , FUKAMI HAJIME , KAMIYA AKIMITSU
IPC分类号： B24B55/02
摘要： PURPOSE:To suppress the increase of the revolution driving force of grinding wheel and suppress the variation of the diameter of the grinding wheel by cooling a metal core by a small quantity of coolant by supplying the coolant which is formed to mist form by the compressed air, on the side surface of the metal core. CONSTITUTION:Since a part of the passage of the first pipe 40 is narrowed by the second pipe 43, the air flow speed increases at the place of the second pipe 43. Accordingly, the coolant in the second pipe 43 is sucked is sucked into the first pipe 40 and forms mists, and further discharged from the first pipe 40, and air is expanded, and heat of the coolant is robbed by the air, and the coolant is cooled. The cooled coolant in mist form is supplied onto the whole side surface of the metal core 35 of a grinding wheel and the temperature rise due to the frictional heat between the metal core 35 and air can be suppressed.

69. 发明专利

JPH05116071A ACICULAR ABRASIVE GRAIN AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH05116071A
公开(公告)日：1993-05-14
申请号：JP30723191
申请日：1991-10-28
申请人： TOYODA MACHINE WORKS LTD
发明人： KITAJIMA MASATO , FUKAMI HAJIME , KAMIYA AKIMITSU , SOMA SHINJI , NISHI KOJI , YOSHIDA MASAHIRO
IPC分类号： B24B53/12 , B24D3/00 , C09K3/14
摘要： PURPOSE:To manufacture, at a low price acicular abrasive grains which can assure truing accuracy similar to that of single stones and will not cause any change in the contact area with a grinding wheel surface even if the forward end of the abrasive grain is worn away. CONSTITUTION:In an acicular abrasive grain 8 formed by a short wire rod comprising a strand provided in the center, a diamond vapor phase epitaxial layer formed on the peripheral surface thereof, and a back-up metal layer formed on the peripheral surface of the diamond vapor phase epitaxial layer, diamond is caused to make vapor phase epitaxial on the peripheral surface of a strand made of a material having such a melting point not to be molten even if diamond is caused to make vapor phase epitaxial in a CVD device, thereby forming a diamond vapor phase epitaxial layer. Preferably, in order to promote the diamond vapor phase epitaxial, the strand is previously plated, diamond micron powder is fixed on the peripheral surface of the strand in the plated layer, and further metal powder is sintered on the peripheral surface of the diamond vapor phase epitaxial layer to form a back-up metal layer. Thus, a wire rod 6 reinforced by the back-up metal layer 7 is cut in a suitable short size to be a product.

70. 发明专利

JPH0569330A MANUFACTURE OF ELECTRODEPOSITED GRINDING WHEEL 失效
公开(公告)号：JPH0569330A
公开(公告)日：1993-03-23
申请号：JP26056391
申请日：1991-09-12
申请人： TOYODA MACHINE WORKS LTD
发明人： KITAJIMA MASATO , FUKAMI HAJIME , KAMIYA AKIMITSU , SOMA SHINJI
IPC分类号： B24D3/06
摘要： PURPOSE:To provide a manufacture of electrodeposited grinding wheel having a long lifetime and the even distribution of grinding particles. CONSTITUTION:In the manufacture of electrodeposited grinding 7 stone, electroplating is performed to the surface of a grinding wheel core 2 made of metal, and the surface of the grinding wheel core 2 is tack-welded with cemented carbide type grinding particles by a tack-welding plating layer 3, which coats only the surface of the grinding wheel core made of metal without coating the surface of the cemented carbide type grinding particles 1. Next, the catalyst is attached to the whole surface of the cemented carbide type grinding particles tack-welded to the grinding wheel core so as to accelerate the electroless plating and the surface of the tack-welding plating layer 3 to activate the surface. Plating finish is performed to the grinding wheel core, to which the cemented carbide type grinding particles are tack-welded, by electroless plating, and the cemented carbide type grinding particles are held on the surface of the grinding wheel core 2 by a plating finish layer 4 for coating the whole surface of the tack-welding plating layer 3 of the grinding wheel core and the cemented carbide type grinding particles.

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