WO2003097338A1 - Pressing machine - Google Patents
Pressing machine Download PDFInfo
- Publication number
- WO2003097338A1 WO2003097338A1 PCT/JP2003/005878 JP0305878W WO03097338A1 WO 2003097338 A1 WO2003097338 A1 WO 2003097338A1 JP 0305878 W JP0305878 W JP 0305878W WO 03097338 A1 WO03097338 A1 WO 03097338A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slide plate
- displacement
- drive shaft
- plate
- measuring means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/007—Means for maintaining the press table, the press platen or the press ram against tilting or deflection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
- B30B1/186—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/14—Control arrangements for mechanically-driven presses
Definitions
- the present invention is intended to accurately measure the position of a slide plate on which a movable mold is mounted with respect to a press used for forming a metal plate or the like, particularly a fixed die mounted on a support base. Press machine.
- Press machines are also used for punching presses, draw forming, die forging, injection molding, and the like.
- a press machine one mold is generally fixed and the other mold is movable.
- a vertical press machine a lower support and a plurality of columns supported by the lower support are used. It has an upper support plate held by a support, and a slide plate that can reciprocate along the support between the lower support and the upper support, and has a molding space between the lower support.
- a fixed mold is provided on the lower support base, and a movable mold is provided on the lower surface of the slide plate, and a workpiece is formed between the fixed mold and the movable mold.
- the slide plate is usually planar and is moved up and down by a drive mechanism. It is desirable that the movable mold be moved while maintaining a desired positional relationship with the fixed mold, for example, while the movable mold is kept horizontal.
- the workpiece made by press molding has a complicated shape such as a three-dimensional shape, the magnitude of the force applied to the slide plate during molding not only changes with the progress of molding, but also the position where the force is applied Moves with molding.
- FIGS. 7 (A), (B) and (C) schematically show the reaction force applied to the slide plate when the automotive oil pan is drawn.
- These figures Indicates the slide plate 40 as xy coordinates.
- the upper die first reaches the drain part of the oil pan and forms the drain part, so the force generated at that part is applied to the fourth quadrant of the xy coordinate.
- the oil pan will be formed, and will receive large forces w2 and w3 from the second and third quadrants of coordinates.
- the force of wl from the beginning becomes smaller, and a large force w4 in the first quadrant is also applied, so these combined forces W are applied to the third quadrant.
- the force of w2 to w4 decreases and the force of w5 is applied, and the resultant force is substantially on the X axis and acts to the right of the y axis.
- the present inventors have proposed a press machine in which the slide plate maintains a preferable positional relationship with the lower support table throughout the press forming.
- displacement measuring means for driving and pressing the slide plate by a plurality of drive sources and measuring the displacement of the slide plate near the portion where each drive source is engaged with the slide plate is provided. I have. Displacement is measured by displacement measuring means at each stage of press forming, and a drive signal is supplied to each drive source so that a preferable positional relationship of the slide plate with respect to the lower support is maintained.
- FIG. 5 is a front view of the press machine
- FIG. 6 is a plan view of the press machine.
- the upper support plate is partially removed.
- a lower support 10 is fixed on the floor surface
- an upper support plate 30 is held by columns 20 erected on the lower support.
- a slide plate 40 that can reciprocate along the column 20 is provided between the lower support 10 and the upper support 30.
- a fixed die for press (lower die) is mounted on the lower support base
- a movable die (upper die) corresponding to the fixed die is mounted on the lower surface of the slide plate.
- a plate to be molded is put in between and molded.
- the upper support plate 30 is provided with five drive sources 70 each comprising a combination of a servomotor and a speed reduction mechanism.
- the drive shaft 7 1 extending downward from each drive source is The upper surface of the slide plate 40 is engaged with each engaging portion 72 through a through hole 92 ′ opened in the reference plate 90 ′.
- a ball screw is attached to the drive shaft to convert the rotation into vertical movement.
- the rotation of the servomotor moves the slide plate up and down.
- Each displacement measuring means 80 is provided near each engaging portion 72.
- the magnetic scale 81 of the displacement measuring means 80 is attached to the reference plate 90 ′, and the magnetic sensor 82 of the displacement measuring means is supported by a support attached to each engaging portion 72.
- the reference plate 90 ' is held at the same position regardless of the position of the slide plate 40.
- the force acting on the slide plate changes as shown in Figs. 7 (A), (B) and (C) described earlier.
- the load on the driving source 70 changes.
- the positional relationship between each part of the movable mold corresponding to each drive source and the fixed mold is not uniform. Some of them will push down the slide plate 40 earlier, and some will slow down the push down of the slide plate 40.
- the lead and lag are measured by the displacement measuring means 80, and they are sent to the control means so that the displacement of the displacement measuring means 80 becomes a desired value, that is, the slide plate at the portion of the engaging portion is moved.
- the drive pulse signal to the drive source 70 is adjusted so as to be horizontal.
- the slide plate can be lowered while maintaining a favorable positional relationship with respect to the lower support, so that the position where the reaction force is applied from the forming part changes during the forming. Can be formed evenly.
- the deformation of the slide plate differs depending on the location. If the position where the displacement measuring means is attached is separated from the part where the drive shaft of the drive source is engaged with the slide plate, the displacement of the slide plate that should be measured at the drive shaft position is It will be measured at the position where the displacement measuring means is attached away from the axis. As a result, the displacement of the slide plate measured by the displacement measuring means did not correctly represent the displacement of the slide plate portion with which the drive shaft was engaged.
- an object of the present invention is to provide a press machine having a displacement measuring means capable of correctly measuring the displacement of a slide plate portion with which a drive shaft of a drive source is engaged.
- a slide plate capable of reciprocating between the lower support and the upper support, and having a molding space between the lower support and
- a displacement measuring means for measuring the displacement of the slide plate
- a reference plate serving as a displacement reference of the slide plate is supported by a lower support, and the drive shaft has a through hole in its axis.
- the displacement measuring means measures displacement of a portion of the slide plate corresponding to a through hole formed in a driving shaft with respect to the reference plate.
- the displacement measuring means includes: a displacement detection shaft which is passed through a through hole formed in the drive shaft so as to be able to move independently of the drive shaft; and a linear scale attached to the reference plate.
- One end of the displacement detection shaft is fixed to a portion of the slide plate corresponding to the through hole formed in the drive shaft, and the other end of the displacement detection shaft is positioned above the reference plate. Preferably, it extends and is opposed to the scale.
- the displacement measuring means is an optical displacement measuring means
- FIG. 1 is a front view showing a partial cross section of a press according to the present invention.
- FIG. 2 (A) is a plan view of the press according to the present invention
- FIG. 2 (B) is a view 2B-2B of FIG. 2 (A).
- FIG. 3 is an enlarged view of a cross section of the displacement measuring means shown in FIG.
- FIG. 4 is an enlarged sectional view of another embodiment of the displacement measuring means used in the present invention.
- FIG. 5 is a front view of a press machine previously proposed by the present inventors.
- FIG. 6 is a plan view of the press shown in FIG.
- FIG. 7 (A), (B) and (C) are diagrams for explaining a change in load with the progress of the press.
- FIG. 1 is a front view of the press machine
- FIG. 2 (A) is a plan view thereof
- FIG. 3 is an enlarged view of a part of FIG. 1 and shows a displacement measuring means in cross section.
- FIG. 4 is a sectional view showing a displacement measuring means according to another embodiment.
- parts similar to those in FIGS. 5 and 6 are denoted by the same reference numerals.
- a lower support 10 is fixed on the floor surface, and an upper support plate 30 is held by columns 20 erected on the lower support.
- a slide plate 40 that can reciprocate along the column 20 is provided between the lower support 10 and the upper support 30 and is formed between the slide plate and the lower support.
- a fixed die for pressing (lower die) is mounted on the lower support, and a movable die (upper die) corresponding to the fixed die is mounted on the lower surface of the slide plate. For example, put the plate to be molded between the molds and mold
- Servo motor and deceleration mechanism are combined as drive source 50 on upper support plate 30 Five things are attached.
- the drive shaft 52 from each drive source passes through a through hole formed in the upper support plate 30 via a gear box 51 having a speed reduction mechanism inside, and each drive shaft 52 is connected to an upper surface of the slide plate 40 by a respective gear. It is engaged with the joint 53.
- the inner surface of each engaging portion and the drive shaft are adapted to convert the rotation of the drive shaft into vertical movement by, for example, a ball screw, and the slide plate is moved up and down by rotation of the servomotor. Since the rotating shaft of the servomotor and the drive shaft are engaged by a reduction mechanism such as a reduction gear, these shafts are in a shifted position, and the servo motor is positioned off the drive shaft. ing.
- the drive sources are arranged such that the pressing force applied to the slide plate by the plurality of drive sources is evenly distributed on the slide plate. Further, it is preferable that these driving sources generate the same pressing pressure, that is, they have the same output.
- the reference plate 90 is made of, for example, an H-shaped titanium frame, and is supported by a column 100 fixed to the lower support 10 and a connection par 102 supported by the column. ing. Since the reference plate 90 is not held by the lower support 10 and does not contact any part of the press machine or interfere with the press machine, deformation of each part of the press machine during molding of the press machine Independent from.
- FIG. 2 (B) the reference plate 90 is shown by an arrow 2B—2B in FIG. 2 (A).
- the connection bar 1 supported by the column 100 is shown in FIG.
- a reference plate 90 is mounted on 02 via an anti-vibration plate 101. Further, it is preferable to use a material such as amber which is less affected by heat for the pillar 100 and the connection bar 102.
- a through hole 54 is formed in the shaft core of each drive shaft 52, and a displacement detection shaft 61 of the displacement measuring means 60 is fixed to a slide plate portion corresponding to the through hole.
- the displacement detection shaft 61 can freely move in the through-hole with respect to the drive shaft 52.
- the displacement detection shaft 61 attached to the slide plate 40 moves up and down together with the slide plate 40.
- the other end of the displacement detection shaft 61 protrudes from the through hole 54 formed in the drive shaft 52 to the upper part of the drive shaft 52, and has a bus 91 having a through hole provided in the reference plate 90. And is movably held by a bush 91. Shaft for displacement detection 61 slides on the bush even above the displacement measuring means Preferably, it is held freely.
- the upper part of the displacement detection shaft 61 faces the lower scale 62 fixed to the reference plate 90.
- a magnetic scale is used as the relay scale 62 and a magnetic sensor 63 is mounted above the displacement detection shaft, for example, the displacement of the portion of the slide plate corresponding to the through hole formed in the drive shaft is displaced.
- the magnetic sensor moves with respect to the linear scale, so that the displacement of the slide plate can be measured. Since the displacement detection axis is the axis of the drive shaft and measures the displacement of the slide plate, it means that the displacement of the slide plate by the drive shaft has been detected.
- FIG. 4 is a sectional view showing another embodiment of the displacement measuring means. Also in this case, a through hole 54 is formed in the axis of the drive shaft 52, but an optical displacement measuring means 65 is provided in a portion of the reference plate 90 facing the through hole formed in the drive shaft. I have. The light beam 66 emitted from the optical displacement measuring means 65 is reflected on the portion of the slide plate 40 facing the through hole formed in the drive shaft, and the distance to the portion is measured.
- the drive source 50 and the drive shaft 52 are displaced from each other and a transmission mechanism is provided therebetween, but the servo motor of the drive source 50 is provided.
- the rotor shaft and the drive shaft can be integrated with each other, and a through hole extending to the upper portion of the servomotor can be provided in the shaft core.
- a shaft for displacement detection extending to the upper part of the servomotor is provided in this through hole, a reference plate is provided on the upper part of the servomotor, and a displacement measuring means can be provided there.
- the displacement of the slide plate can be measured at the center of the drive shaft that drives the slide plate of the press. Therefore, when the drive source is controlled in accordance with the displacement of the slide plate, the displacement of the slide plate at the pressure point is measured, so that the control can be performed accurately.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Press Drives And Press Lines (AREA)
- Control Of Presses (AREA)
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03723326A EP1508432A4 (en) | 2002-05-17 | 2003-05-12 | PRESS |
| HK05110684.5A HK1078826B (en) | 2002-05-17 | 2003-05-12 | Pressing machine |
| CA002472042A CA2472042C (en) | 2002-05-17 | 2003-05-12 | Pressing machine |
| US10/499,603 US7007529B2 (en) | 2002-05-17 | 2003-05-12 | Pressing machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002142263A JP4490027B2 (ja) | 2002-05-17 | 2002-05-17 | プレス機 |
| JP2002-142263 | 2002-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003097338A1 true WO2003097338A1 (en) | 2003-11-27 |
Family
ID=29544980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/005878 Ceased WO2003097338A1 (en) | 2002-05-17 | 2003-05-12 | Pressing machine |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7007529B2 (ja) |
| EP (1) | EP1508432A4 (ja) |
| JP (1) | JP4490027B2 (ja) |
| KR (1) | KR100709031B1 (ja) |
| CN (1) | CN1290691C (ja) |
| CA (1) | CA2472042C (ja) |
| TW (1) | TWI227193B (ja) |
| WO (1) | WO2003097338A1 (ja) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4402863B2 (ja) * | 2002-02-14 | 2010-01-20 | 株式会社放電精密加工研究所 | プレス機 |
| DE10297808T5 (de) * | 2002-10-24 | 2005-08-25 | Kanemitsu Corp., Akashi | Presse |
| JP4672284B2 (ja) * | 2004-05-11 | 2011-04-20 | 株式会社放電精密加工研究所 | 電動プレス装置 |
| JP4833695B2 (ja) * | 2005-03-15 | 2011-12-07 | 新日本製鐵株式会社 | プレス機械 |
| DE102005052158B4 (de) * | 2005-11-02 | 2008-01-03 | Fette Gmbh | Verfahren und Meßsystem zur Bildung einer Referenz bei einer Pulverpresse |
| KR101013097B1 (ko) * | 2008-02-15 | 2011-02-14 | (주)대성마린텍 | 머쉬룸 벤틸레이터 |
| KR101006696B1 (ko) * | 2008-09-25 | 2011-01-10 | 주식회사 세원공업 | 선박 화물탱크용 에어벤트 |
| USD636414S1 (en) * | 2010-06-18 | 2011-04-19 | Janome Sewing Machine Company Limited | Pressing machine |
| CN102632629A (zh) * | 2012-04-17 | 2012-08-15 | 西安交通大学 | 一种交流伺服直驱电机驱动滚珠丝杠的小型台式压力机 |
| ITMI20121943A1 (it) * | 2012-11-15 | 2014-05-16 | Elba Spa | Macchina per la produzione di sacchetti in materiale flessibile |
| DE102014105429B4 (de) * | 2014-04-16 | 2018-02-01 | Fette Compacting Gmbh | Verfahren und Einrichten zum Betreiben einer Presse |
| WO2016042422A1 (en) * | 2014-09-19 | 2016-03-24 | Siti - B&T Group S.P.A. | Non- welded structure for presses, as well as method for the assembly the same |
| CN104859174A (zh) * | 2015-06-10 | 2015-08-26 | 武汉工程大学 | 全自动微型线香机 |
| CN108167664A (zh) * | 2017-12-22 | 2018-06-15 | 上海夏仑光电技术有限公司 | 一种led条形灯具纯结构密封防水设计及组装设备 |
| DE102018131166B4 (de) * | 2018-12-06 | 2020-08-13 | Johannes Hülshorst | Feinschneidpresse |
| CN110254102A (zh) * | 2019-07-16 | 2019-09-20 | 浙江长兴杭华玻璃有限公司 | 一种香水瓶生产用压花设备 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0323306U (ja) * | 1989-07-17 | 1991-03-11 | ||
| JPH06284630A (ja) * | 1993-03-26 | 1994-10-07 | Mitsubishi Electric Corp | リニアアクチュエータ |
| JPH11254191A (ja) * | 1998-03-16 | 1999-09-21 | Yamada Dobby Co Ltd | プレス機 |
| JP2000343283A (ja) * | 1999-05-31 | 2000-12-12 | Yamada Dobby Co Ltd | ねじプレス機のスライド制御装置 |
| JP2002239800A (ja) * | 2000-12-04 | 2002-08-28 | Sintokogio Ltd | プレス装置及びプレス装置の制御方法 |
| JP2002263900A (ja) * | 2001-03-15 | 2002-09-17 | Hoden Seimitsu Kako Kenkyusho Ltd | プレス機 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US170337A (en) * | 1875-11-23 | Improvement in machines for perforating paper | ||
| JPS59110500A (ja) * | 1982-12-16 | 1984-06-26 | Yamada Dobby Co Ltd | プレス機の下死点位置補正装置 |
| JPS60222216A (ja) * | 1984-04-18 | 1985-11-06 | Kawasaki Yukou Kk | 可塑性材料のプレス成形の平衡支持装置 |
| CA1275892C (en) * | 1986-10-10 | 1990-11-06 | Ronald Ballantyne | Hydraulic cylinder device for platen spacing indication and control |
| JP2634993B2 (ja) * | 1993-01-29 | 1997-07-30 | 鬼怒川ゴム工業株式会社 | ベンディング装置 |
| JPH08164500A (ja) * | 1994-12-14 | 1996-06-25 | Nisshinbo Ind Inc | 分散加圧型プレス装置 |
| JP3095366B2 (ja) * | 1997-04-07 | 2000-10-03 | 北川精機株式会社 | プレス制御方法及びプレス装置 |
| JP3821549B2 (ja) * | 1997-08-07 | 2006-09-13 | 株式会社小松製作所 | サーボプレスの金型保護装置及びその方法 |
| JP3227440B2 (ja) * | 1999-08-05 | 2001-11-12 | 株式会社放電精密加工研究所 | 加圧装置 |
-
2002
- 2002-05-17 JP JP2002142263A patent/JP4490027B2/ja not_active Expired - Fee Related
-
2003
- 2003-05-01 TW TW092112037A patent/TWI227193B/zh not_active IP Right Cessation
- 2003-05-12 CN CNB038027267A patent/CN1290691C/zh not_active Expired - Fee Related
- 2003-05-12 CA CA002472042A patent/CA2472042C/en not_active Expired - Fee Related
- 2003-05-12 WO PCT/JP2003/005878 patent/WO2003097338A1/ja not_active Ceased
- 2003-05-12 EP EP03723326A patent/EP1508432A4/en not_active Withdrawn
- 2003-05-12 US US10/499,603 patent/US7007529B2/en not_active Expired - Fee Related
- 2003-05-16 KR KR1020030031107A patent/KR100709031B1/ko not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0323306U (ja) * | 1989-07-17 | 1991-03-11 | ||
| JPH06284630A (ja) * | 1993-03-26 | 1994-10-07 | Mitsubishi Electric Corp | リニアアクチュエータ |
| JPH11254191A (ja) * | 1998-03-16 | 1999-09-21 | Yamada Dobby Co Ltd | プレス機 |
| JP2000343283A (ja) * | 1999-05-31 | 2000-12-12 | Yamada Dobby Co Ltd | ねじプレス機のスライド制御装置 |
| JP2002239800A (ja) * | 2000-12-04 | 2002-08-28 | Sintokogio Ltd | プレス装置及びプレス装置の制御方法 |
| JP2002263900A (ja) * | 2001-03-15 | 2002-09-17 | Hoden Seimitsu Kako Kenkyusho Ltd | プレス機 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1508432A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1290691C (zh) | 2006-12-20 |
| HK1078826A1 (en) | 2006-03-24 |
| CA2472042C (en) | 2009-06-30 |
| TWI227193B (en) | 2005-02-01 |
| US20050039510A1 (en) | 2005-02-24 |
| KR20030089494A (ko) | 2003-11-21 |
| US7007529B2 (en) | 2006-03-07 |
| JP2003334695A (ja) | 2003-11-25 |
| CN1642723A (zh) | 2005-07-20 |
| TW200404668A (en) | 2004-04-01 |
| JP4490027B2 (ja) | 2010-06-23 |
| EP1508432A1 (en) | 2005-02-23 |
| EP1508432A4 (en) | 2012-02-29 |
| KR100709031B1 (ko) | 2007-04-19 |
| CA2472042A1 (en) | 2003-11-27 |
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