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1. 发明专利

JPS6384873A MULTI-SPINDLE ROTARY DRESSER DEVICE 失效
公开(公告)号：JPS6384873A
公开(公告)日：1988-04-15
申请号：JP22838286
申请日：1986-09-29
申请人： THK CO LTD , TOYODA VAN MOPPES LTD
发明人： TERAMACHI HIROSHI , IMAI KATSUTO , SUZUKI KENJI , SUGIURA HIDEKAZU
IPC分类号： B24B53/14
摘要： PURPOSE:To eliminate uneven wear and damage further the generation of disorder, by providing plural rotary dressers to be arranged spacing a predetermined distance and setting peripheral surface grinding wheel sides of the dressers so as to form almost the same projection figure to the peripheral surface shape of a grinding wheel so that plural abrasive surfaces are corrected by one time operation. CONSTITUTION:A device, which provides rotary dressers 5a, 5b successively spacing a predetermined distance to be arranged in a direction of the peripheral tangent A of a grinding wheel 10, sets a peripheral surface grinding wheel side, when it is projected in the direction of the tangent A, of these dressers so as to form almost the same shape to the peripheral surface shape of the grinding wheel 10. And the device, if the grinding wheel 10 is moved as shown by an arrow head B in the drawing, first corrects one abrasive surface 10b by the rotary dresser 5b next the other abrasive surface by the dresser 5a. Accordingly, the device enables the plural abrasive surfaces of the grinding wheel 10 to be corrected by one time operation while prevents the rotary dressers 5a, 5b from unevenly wearing, and damage in the peripheral surface and the generation of disorder can be eliminated by exchanging or correcting only the dressers 5a, 5b.

2. 发明专利

JP2006021307A Thread groove machining method 有权
标题翻译：螺纹加工方法
公开(公告)号：JP2006021307A
公开(公告)日：2006-01-26
申请号：JP2004223350
申请日：2004-07-30
申请人： Thk Co Ltd , Thk株式会社
发明人： IMAI KATSUTO , SHIRAI TAKEKI , SHARUMA CHANDORA SHEKARU
IPC分类号： B23G1/32 , F16H25/22
摘要： PROBLEM TO BE SOLVED: To provide a thread groove machining method capable of precisely machining a thread groove of a large-diameter feed screw device or a thread groove of a complicated shape. SOLUTION: The thread groove 20 is machined by a ball end mill 15 that is a rotating tool. For example, the thread groove is roughly machined on a peripheral surface of workpiece 10 by a cutting tool, and then subjected to quenching. Finally, the ball end mill 15 finishes the thread groove. At that time, by using the ball end mill 15 with a cutting edge diameter smaller than thread groove width, a cutting position of the ball end mill 15 is gradually changed to finish the thread groove. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够精确地加工大直径进给螺杆装置的螺纹槽或复杂形状的螺纹槽的螺纹槽加工方法。解决方案：螺纹槽20由作为旋转工具的球头铣刀15加工。例如，螺纹槽通过切削工具粗加工在工件10的外周面上，然后进行淬火。最后，球头铣刀15完成螺纹槽。此时，通过使用切削刃直径小于螺纹槽宽度的球头铣刀15，逐渐改变滚珠端铣刀15的切削位置，以完成螺纹槽。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JPH08285030A BALL SCREW AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH08285030A
公开(公告)日：1996-11-01
申请号：JP11000495
申请日：1995-04-10
申请人： THK CO LTD , DAIDO STEEL CO LTD
发明人： IMAI KATSUTO , SHIRAI TAKEKI , HIYAMIZU TAKAO
IPC分类号： F16H25/24 , B21H3/12
摘要： PURPOSE: To provide a method of manufacturing a ball screw, used for a linear bearing or the like, at a low cost by rolling. CONSTITUTION: Insert material with a fusing point Ti lower than the fusing, point Tb of metallic material with a lower fusing point between metallic materials forming a screw shaft 1 and an extended member 3 is inserted between the screw shaft 1 with a thread groove previously machined on the peripheral surface by rolling, and the extended member 3 to be jointed to the end face of the screw shaft 1. A joint part is heated at the temperature of Ti

4. 发明专利

JPH04307107A FLANGED LINEAR BALL BEARING 失效
公开(公告)号：JPH04307107A
公开(公告)日：1992-10-29
申请号：JP9493191
申请日：1991-04-02
申请人： THK CO LTD
发明人： IMAI KATSUTO , KIMOTO MASASHI
IPC分类号： F16C29/06 , F16C33/38 , F16C35/06
摘要： PURPOSE:To provide a linear ball bearing with a flanged linear ball bearing that is capable of promoting a reduction in production cost and an improvement in production efficiency in view of various problems at issue on the conventional flanged linear bearing. CONSTITUTION:A linear ball bearing device provided with a bearing outer cylinder 2 doing a rectilinear motion as guided by a bearing shaft 1; a lot of balls 3 being held in space between this bearing outer cylinder 2 and the bearing shaft 1 and rolling as receiving the load; and a ball retainer 5 being inset into a hollow part of the bearing outer cylinder 2 and holding and aligning these balls 3. In the bearing device, a flange part 4 for clamping the bearing to a mounted body such as a bed or table, etc., is formed to protrude from the ball retainer 5.

5. 发明专利

JP2002188704A FINITE STROKE BALL SCREW DEVICE 失效
公开(公告)号：JP2002188704A
公开(公告)日：2002-07-05
申请号：JP2000390411
申请日：2000-12-22
申请人： THK CO LTD
发明人： IMAI KATSUTO
IPC分类号： F16H25/22 , F16H25/24
摘要： PROBLEM TO BE SOLVED: To provide a finite stroke ball screw device capable of surly preventing the protrusion of a ball caused by a centrifugal force in operation, reducing the scattering of lubricant filled in a ball holder, and reducing the amount of dust entering a nut member. SOLUTION: This finite stroke ball screw device has a screw shaft 10; a nut member 20; a plurality of balls 30 rolling between a ball rolling groove 11 of the screw shaft 10 and a ball rolling groove 22 of the nut member 20; and the ball holder 40 interposed between the screw shaft 10 and the nut member 20, whose one part is extruded to the outside of the nut member 20, having a ball holding hole 42 for inserting each ball 30 and placing the balls 30 at predetermined intervals in proper alignment. The ball holder 40 has a spacer part having a concave spherical accepting surface with which the ball slidably contacts between the ball holding holes 42 in the line up direction of the balls 30 on the outer circumferential surface, and a cross section vertical to the line up direction of the balls 30 of the spacer part is formed in a circular arc.

6. 发明专利

JPH07286616A LINEAR GUIDE UNIT AND LINEAR GUIDE TABLE USING IT 失效
公开(公告)号：JPH07286616A
公开(公告)日：1995-10-31
申请号：JP7873494
申请日：1994-04-18
申请人： THK CO LTD
发明人： IMAI KATSUTO
IPC分类号： F16C29/06
摘要： PURPOSE:To make the parallelization operation for multiple track rails easily and also easily manufacture a linear guide table excellent in performance even by an unskilled engineer. CONSTITUTION:A linear guide unit is provided with a reference bottom surface which is provided with a multiple ball rolling surfaces extending in longitudinal direction and used as a set reference to a fixed part, multiple track rails 1 provided with a reference side face erected vertically to the reference bottom surface, multiple sliding tables 2 installed on the track rails 1 through balls rolling on the ball rolling surface, and multiple rail fixing grooves 31 which are parallel to each other and to which the end part of the track rails 1 is fitted closely. Also the rail fixing groove 31 is provided with a pair of rail fixing brackets 3 in which a reference surface 32 with which the reference side faces of the track rails 1 are made in contact is formed.

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