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1. 发明专利

JPH0952141A BOLT FORMING METHOD 失效
公开(公告)号：JPH0952141A
公开(公告)日：1997-02-25
申请号：JP20946195
申请日：1995-08-17
申请人： TOYOTA MOTOR CORP
发明人： INADA TAKESHI , NAKANE TSUNECHIKA
IPC分类号： B21K1/44 , B21J5/02 , B21J5/08 , B21K1/46
摘要： PROBLEM TO BE SOLVED: To make an end face of a shaft part of a bolt flat during the forming. SOLUTION: A bolt 30 is inserted in and fitted to a through hole 14a of a die 10, a bolt head part 31 is pressed by a punch die 20, and drawn into a through hole 14b by a drawing land 11a to form a shaft part 32. The shaft part pressed by the punch die is chamfered at the tip by a chamfering and drawing land 11c, and pressed against a knock-out member 16. A clearance W1 is formed between a recessed part 11a of an upper die part 11 and an end part of the knock-out member. The excess metal at the tip of the shaft part is flowed by the clearance W1, and flowed out into a cavity 13 through the clearance W1 to provide a flange-shaped thin-walled part 32a around the shaft part. Due to the flowing of the shaft part, the space between the end faces of the tip of the shaft part and the knock-out member is filled to make the tip of the shaft part flat surface. The thin-walled part 32a is held between the chamfering and drawing land and cut, and the shape of the product is not affected.

2. 发明专利

JPH0947837A METHOD AND DEVICE FOR IRONING BOLT AND BOLT 失效
公开(公告)号：JPH0947837A
公开(公告)日：1997-02-18
申请号：JP19666895
申请日：1995-08-01
申请人： TOYOTA MOTOR CORP
发明人： INADA TAKESHI
IPC分类号： B21D22/28 , B21J5/06 , B21K1/44
摘要： PROBLEM TO BE SOLVED: To improve axis runout precision of a bolt at the stage ironing is completed. SOLUTION: While a cylindrical part (wk) of a bolt (w) is supported with a support member 12 at the state of zero clearance or less in the radial direction, the shaft part (wn) for screw forming of the bolt (w) is subjected to ironing with a die 14 fixed relatively unmovable with aligning to the axis of the support member 12. Thus, no backlash is caused between the cylindrical part (wk) of bolt (w) and the support member 12, the axis runout precision of bolt (w) at the stage of completing of ironing is improved.

3. 发明专利

JPH08117883A TRIMMING METHOD AND DEVICE THEREFOR 失效
公开(公告)号：JPH08117883A
公开(公告)日：1996-05-14
申请号：JP25234894
申请日：1994-10-18
申请人： TOYOTA MOTOR CORP
发明人： SUZUKI TOSHITAKA , INADA TAKESHI , HIRAYAMA ISAMU
IPC分类号： B21D28/00 , B21D28/14
摘要： PURPOSE: To surely cut and remove burr on the external circumferential face of a work and to prevent the front face of the work from causing a flaw at the time of ironing in the following process. CONSTITUTION: In a trimming method where a shaft like work W is set on a trimming die 26 and the burr R formed on the circumference of the work W is cut and removed while moving the work in the axial direction by pressing the work with a punch 16, each die piece 26p of the trimming die 26 divided into plural numbers in the circumferential direction is moved to the outside of the radial direction only by the equal dimension. Then, in a state where a prescribed clearance is generated between the work W and the trimming die 26, a process to set the work W on the trimming die 26, and after this process, a process to make the clearance between the trimming die 26 and the work W into almost zero by moving each die piece 26p of the trimming die 26 to the inside of radial direction and continuing each die piece 26p mutually are provided.

4. 发明专利

JPH07116768A TRIMMING DIE 失效
公开(公告)号：JPH07116768A
公开(公告)日：1995-05-09
申请号：JP26682593
申请日：1993-10-26
申请人： TOYOTA MOTOR CORP
发明人： INADA TAKESHI , NAKANE TSUNECHIKA
IPC分类号： B21K1/50
摘要： PURPOSE:To avoid interference between a cutting blade and an end face and to prolong the life of a die by abutting the die on the punch in a state where a space is secured between the cutting blade and the upper end face of the die. CONSTITUTION:A stepped part 1c is provided in a recessed state around the die hole 1a on the upper end face 1b of a die 1; a receiving face 1d is provided in a projecting state around the stepped part 1c; a recessed part 1e for receiving scrap is provided in a recessed state around the receiving face 1d; and an abutting face If is provided in a projecting state around the recessed part 1e for receiving scrap. The shaft part W1 of an unworked bolt W is inserted into the die hole 1a of the die 1. A ram 4 is lowered, a punch 6 is made close to the die 1, and a seating part W2 is placed on the upper end face 1b of the die 1. The seating part W2 is pressed by a cutting blade 6b and the receiving face 1d of the upper end face 1b, and a trimming groove is formed at the prescribed position of the seating part W2. A space is stably secured between the cutting blade 6b and receiving face 1d, and the interference between them is avoided.

5. 发明专利

JPH0435802A AUTOMATIC TIP REPLACING CUTTING TOOL 失效
公开(公告)号：JPH0435802A
公开(公告)日：1992-02-06
申请号：JP13873190
申请日：1990-05-29
申请人： MITSUBISHI MATERIALS CORP , TOYOTA MOTOR CORP
发明人： SAEKI KOYO , SAKAMOTO TOMOYOSHI , SASAKI YOSHIO , INADA TAKESHI
IPC分类号： B23Q3/155 , B23B29/04
摘要： PURPOSE:To obtain an automatic tip replacing cutting tool which can peform turning work for a long period by installing a tip holder replacing mechanism which pushes out the tip holder on which the tip accommodated in a magazine is installed and positioned on a feeding surface, between a clamping member and an installation seat. CONSTITUTION:As for a cutting tool holder 1, an installation seat 1a for installing a cartridge 2 at the top edge is formed, and the installation seat 1a and a feeding surface 1b are formed by cutting the top edge of the cartridge 2, and a magazine 5 for feeding the cartridge 2 on the feeding surface 1b is installed at the position of the feeding surface 1b. Accordingly, a tip holder 8 having a tip 7 after use is discharged by sending out the cutting tool holder 1 in the magazine 5 in succession on the installation seat, and can be automatically replaced with a tip holder having a new chip.

6. 发明专利

JP2010023064A Method for supporting design of forging process 有权
标题翻译：支撑锻造工艺设计方法
公开(公告)号：JP2010023064A
公开(公告)日：2010-02-04
申请号：JP2008185769
申请日：2008-07-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIYAWAKI KAZUHISA , INADA TAKESHI , KAWAI YUTAKA , ENOMOTO YOSHIHIDE , OTA SHIGEKI
IPC分类号： B21J5/00
摘要： PROBLEM TO BE SOLVED: To provide a method for supporting a design with which the decision of a working condition (at least one side of a cross sectional shape of a work-piece for forging and setting position of the work-piece in a forging die) enable to restrain the wear of the forging die, is supported.
SOLUTION: The design supporting method at first simulates a deforming process of the work-piece during forging by giving the initial values to the cross sectional shape and the setting position of the work-piece. Depending on the simulation, a moving distance of a strain speed zero point in the inner part of the work-piece in the deformation process is estimated. The working condition is corrected so that estimated moving distance becomes short. Depending on shortage of the moving distance of the strain speed zero point, a horizontal directional load applied to the work-piece during the forging-work becomes small. That is, the load of the horizontal direction applied to the forging die becomes small. In this result, the wear of the forging die is restrained.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于支撑设计的方法，其中确定工作状态（工件的锻造和设置位置的工件的截面形状的至少一侧在锻造模具）能够抑制锻模的磨损，被支撑。
解决方案：设计支持方法首先通过给出工件的横截面形状和设置位置的初始值来模拟锻造期间工件的变形过程。根据模拟，估计变形过程中工件内部应变速度零点的移动距离。修正工作条件，使估计的移动距离变短。根据应变速度零点的移动距离的不足，在锻造作业期间施加到工件的水平方向负载变小。也就是说，施加到锻造模具的水平方向的载荷变小。因此，能够抑制锻模的磨损。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JPH1071445A DRAWING METHOD AND ITS DEVICE 失效
公开(公告)号：JPH1071445A
公开(公告)日：1998-03-17
申请号：JP22806696
申请日：1996-08-29
申请人： TOYOTA MOTOR CORP
发明人： INADA TAKESHI
IPC分类号： B21J5/02 , B21J13/02 , B21K1/44 , B21K27/00
摘要： PROBLEM TO BE SOLVED: To improve precision in drawing by minimizing to the utmost a clearance between the first die and the thread part (wn) of a bolt (w). SOLUTION: In a drawing method in which, after the thread part wn and the neck (wk) of a bolt (w) are supported by the first and second dies 14, 12, these dies 14, 12 are relatively moved in the axial direction, so that drawing is carried out on the thread part wn of the bolt (w); a restraint is imparted in the center direction of the die for the purpose of correcting the shaft runout of the bolt (w), after the thread part wn is supported by the first die 14 until the neck (wk) is supported by the second die 12. Consequently, even in the case where the bolt (w) is in the shaft runout, the neck part (wk) can be guided to the second die 12 while the shaft runout is corrected, enabling a clearance to be minimized between the first die 14 and the thread part wn of the bolt (w).

8. 发明专利

JPH08304006A INSPECTION METHOD FOR SURFACE DEFECT OF SHAFT MEMBER 失效
公开(公告)号：JPH08304006A
公开(公告)日：1996-11-22
申请号：JP13294695
申请日：1995-05-02
申请人： TOYOTA MOTOR CORP
发明人： INADA TAKESHI
IPC分类号： G01B5/08 , B21H3/02
摘要： PURPOSE: To obtain an inspection method in which the surface defect of all shaft members is inspected when the shaft members are produced by a rolling. CONSTITUTION: In the rolling process, a rod-shaped gage head 29 is elastically energized and installed on the surface of a shaft member 24 which is held by one pair of thread rolling dies between them so as to be turned in such a way that one end of it always comes into contact, and whether a surface defect in the whole circumferential direction exists or not is inspected regarding all shaft members 24 which pass the process. Then, when the surface defect exists on every shaft member 24, the end part of the gage head 29 enters the part of the defect so as to be moved, and the surface defect is detected by the movement of the gage head 29.

9. 发明专利

JPH0295531A AUTOMATIC CHIP EXCHANGE MECHANISM 失效
公开(公告)号：JPH0295531A
公开(公告)日：1990-04-06
申请号：JP24178588
申请日：1988-09-27
申请人： MITSUBISHI METAL CORP , TOYOTA MOTOR CORP
发明人： SAEKI KOYO , SAKAMOTO TOMOYOSHI , INADA TAKESHI , SASAKI YOSHIO , YOSHIMURA HIROHITO
IPC分类号： B23Q3/155 , B23B27/00 , B23B27/16
摘要： PURPOSE:To conduct automatically the work of the exchange of chips, by providing at a bite holder a clamp piece drive means whose purpose is to move in reciprocation a clamp piece in approach/separation directions to a chip fitting seat, and providing a means whose purpose is to push out the chips housed in a chip magazine to the chip fitting seat. CONSTITUTION:In the case of chips being exchanged, a clamp piece 17 is first moved in the direction of separation from a chip fitting seat 19 by means of a clamp piece drive means 51, and the pressure of pushing at the chip 13 pinched between the clamp piece 17 and the chip fitting seat 19, is released. Under this condition, one chip 13 out of a plurality of chips 13 housed in a chip magazine 23 is pushed out to the chip fitting seat 19 by means of a chip pushing out means 37. Next, the clamp piece 17 is moved again in the direction of approach to the chip fitting seat 19 by means of the clamp piece drive means 51. By this movement, the exclusion of the previously furnished chip 13 and the pinching of a new chip 13 between the chip fitting seat 19 and the clamp piece 17, are made.

10. 发明专利

JP2010023103A Forging method 审中-公开
标题翻译：锻造方法
公开(公告)号：JP2010023103A
公开(公告)日：2010-02-04
申请号：JP2008190222
申请日：2008-07-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： INADA TAKESHI , KOBAYASHI TAKESHI , OGOSHI SHUZO , MIYAWAKI KAZUHISA , HIGAKI SHUJI
IPC分类号： B21J5/00 , B21J13/02 , B21K1/08
CPC分类号： B21K1/08
摘要： PROBLEM TO BE SOLVED: To prevent underfill from occurring in a workpiece after forged, despite of the abrasion of a forging die due to change over time.
SOLUTION: The invented forging method comprises three processing steps. The first step (S11) is to specify a region of the workpiece in which the cross-sectional area of the workpiece forged by the forging die after the changeover time becomes larger than that of the workpiece forged by the forging die before the changeover time. The second step (S14) is to measure the abrasion amount of the region of the forging die which touches the specified region of the workpiece. In the third step (S18) the distance between the cope and drag of the forging die is lessened if the measured abrasion amount exceeds the threshold value. If the abrasion amount exceeds the threshold value, the distance between the cope and drag of the forging die is lessened so that underfill in the workpiece can be prevented.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止在锻造后在工件中发生底部填充，尽管锻造模具随着时间的变化而磨损。解决方案：本发明的锻造方法包括三个处理步骤。第一步骤（S11）是指在切换时间之前锻造模具锻造的工件的截面积比在切换时间之前由锻造模具锻造的工件的截面积大的工件的区域。第二步骤（S14）是测量接触工件的指定区域的锻造模具的区域的磨损量。在第三步骤（S18）中，如果测量的磨耗量超过阈值，则锻模的上模和下拉之间的距离减小。如果磨损量超过阈值，则锻造模具的上模和牵引之间的距离减小，从而可以防止工件中的底部填充。版权所有（C）2010，JPO＆INPIT

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