JP7357556B2

JP7357556B2 - press equipment

Info

Publication number: JP7357556B2
Application number: JP2020010668A
Authority: JP
Inventors: 敬赤羽
Original assignee: Subaru Corp
Current assignee: Subaru Corp
Priority date: 2020-01-27
Filing date: 2020-01-27
Publication date: 2023-10-06
Anticipated expiration: 2040-01-27
Also published as: JP2021115666A

Description

本発明は、プレス装置、特に、下型上に搭載された板材に対して上下動可能な上型を下動することで、下型に設けられた下刃と上型に設けられた上刃とで板材を剪断するプレス装置に関する。 The present invention provides a press device, in particular, by moving an upper mold that is movable up and down relative to a plate material mounted on a lower mold, a lower blade provided on the lower mold and an upper blade provided on the upper mold are connected to each other. This invention relates to a press device for shearing plate materials.

車両に用いられる金属製パネルは、例えば、プレス装置を用いたプレス工程で成形される。このような金属製パネルの素材をブランク材といい、例えば、金属板コイルから連続供給される金属シート材（板材）を順次規定寸法のブランク材に切断し、このブランク材をベルトコンベヤのベルト上に載置して次工程に搬送するラインをブランキングラインという。 Metal panels used in vehicles are formed, for example, in a press process using a press device. The material for such metal panels is called blank material. For example, metal sheet material (plate material) that is continuously supplied from a metal plate coil is sequentially cut into blank materials of specified dimensions, and these blank materials are placed on the belt of a belt conveyor. The line where materials are placed and transported to the next process is called a blanking line.

上記シート材の切断に、切断用のプレス装置が用いられることがある。この切断用のプレス装置は、上下動可能な上型に設けられた上刃と固定型である下型に設けられた下刃とでシート材を挟むようにして剪断する。剪断されたシート材やブランク材の剪断端部には、切粉やバリが付着しており、これらが回転するベルトコンベヤのベルトで擦られてベルトに付着し、後続の板材に付着するという問題がある。また、ベルトコンベヤのベルトは、一般に常時回転し続けているので、シート材やブランク材の剪断端部に付着している切粉やバリによってベルトが損耗したり、それらによって削り取られたベルト材の切片などが次の板材に付着したりするといった問題もある。剪断に伴う切粉やバリは、鋼製板材よりもアルミニウム製板材の方が発生しやすい傾向にある。 A cutting press device may be used to cut the sheet material. This cutting press device shears the sheet material by sandwiching it between an upper blade provided on a vertically movable upper mold and a lower blade provided on a fixed lower mold. The problem is that chips and burrs are attached to the sheared edges of sheared sheet materials and blank materials, and these are rubbed by the rotating belt of the belt conveyor and adhere to the belt, and then adhere to the following sheet materials. There is. In addition, since the belt of a belt conveyor generally continues to rotate constantly, the belt may be worn out by chips or burrs attached to the sheared edges of sheet materials or blank materials, and the belt material may be worn out by these chips or burrs. There is also the problem that the cut pieces may adhere to the next plate material. Chips and burrs due to shearing tend to occur more easily on aluminum plates than on steel plates.

こうした剪断端部の切粉やバリは、プレス装置による剪断の際の下刃と上刃のクリアランス（剪断隙間）を適切にすることで低減されることが知られている。そこで、この種の板材剪断用プレス装置では、例えば下記特許文献１に記載されるようなクリアランス調整装置が設けられている。このクリアランス調整装置は、例えば、上刃の位置をモータ駆動で移動して下刃とのクリアランスを調整するものであり、板材の厚さ（上下方向寸法）に応じた下刃と上刃の適正なクリアランスを選択・入力することで、そのクリアランスが達成されるように構成されている。一般に、下刃と上刃の適正なクリアランスは、板材の厚さに対して一定の比率を示す。したがって、下刃と上刃の適正なクリアランスをＣ、板材の厚さをｔ、比率をｋとすると、Ｃは、Ｃ＝ｋ・ｔで得られる。 It is known that such chips and burrs at the sheared end can be reduced by optimizing the clearance (shear gap) between the lower blade and the upper blade during shearing with a press device. Therefore, this type of plate shearing press device is provided with a clearance adjustment device as described, for example, in Patent Document 1 below. This clearance adjustment device, for example, adjusts the clearance between the upper blade and the lower blade by moving the position of the upper blade using a motor drive. The configuration is such that by selecting and inputting a certain clearance, that clearance is achieved. Generally, the appropriate clearance between the lower blade and the upper blade shows a certain ratio to the thickness of the plate material. Therefore, if the appropriate clearance between the lower blade and the upper blade is C, the thickness of the plate material is t, and the ratio is k, then C is obtained as C=k·t.

実開平６－２１８１６号公報Utility Model Publication No. 6-21816

しかしながら、上記のようなクリアランス調整装置が設けられたプレス装置では、剪断する板材の厚さが変わるごとに、下刃と上刃のクリアランスを選択・入力しなければならないことから、厚さの異なる板材を混在して剪断する場合には、そのたびにクリアランスを選択・入力しなければならないという面倒がある。また、例えば、下刃に対する上刃の位置を調整する機構や、クリアランスの選択・入力装置、更には、クリアランスのサーボ機構など、複雑で大掛かりな構造が必要である。こうした問題は、上記ブランキングラインのみならず、下型の下刃と上型の上刃で板材を剪断する種々のプレス装置において、同様に発生し得る。 However, in a press machine equipped with a clearance adjustment device as described above, the clearance between the lower blade and the upper blade must be selected and input each time the thickness of the plate material to be sheared changes. When shearing a mixture of board materials, it is troublesome to have to select and input the clearance each time. Furthermore, a complicated and large-scale structure is required, such as a mechanism for adjusting the position of the upper blade relative to the lower blade, a clearance selection/input device, and a clearance servo mechanism. These problems can occur not only on the blanking line but also in various press machines that shear a plate material with a lower blade of a lower mold and an upper blade of an upper mold.

本発明は、上記課題に鑑みてなされたものであり、その目的は、比較的簡潔な構成にして、クリアランスを選択・入力することなく、装置側で下刃と上刃のクリアランスが板材の厚さに応じて適正に調整されるプレス装置を提供することにある。 The present invention has been made in view of the above-mentioned problems.The purpose of the present invention is to have a relatively simple structure so that the clearance between the lower blade and the upper blade can be adjusted to the thickness of the plate material on the device side without selecting or inputting the clearance. The object of the present invention is to provide a press device that can be appropriately adjusted depending on the situation.

上記目的を達成するため、本発明のプレス装置は、
下型上に搭載された板材に対して上下動可能な上型を下動することで、前記下型に設けられた下刃と前記上型に設けられた上刃とで該板材を剪断するプレス装置において、
前記上刃が設けられ、前記上型と共に移動されると共に、該上刃による前記板材剪断方向と直交方向のみに移動可能に該上型に設けられた上刃部材と、前記上型に設けられ、該上型と共に移動されると共に、該上型の動きとは別個に上下動可能な支持部材と、前記支持部材に設けられ、前記上型の下動時に前記下型上に搭載された板材の上面に当接可能で、該支持部材の動きとは別個に上下動可能な板押え部材と、前記板押え部材と前記上刃部材との間に介在して前記支持部材に設けられ、前記板材剪断方向と直交方向のみに移動可能なカム部材と、を備え、
前記カム部材及び前記板押え部材の対向面には、前記上型の下動時で且つ該板押え部材が前記板材上面に当接した後の前記支持部材に対する該板押え部材の上動に伴い、該上動量に対して予め規定された移動比率で前記カム部材を前記板材剪断方向と直交方向で且つ前記下刃から遠ざける方向に移動させるカム面が形成され、前記支持部材及び下型の少なくとも一方には、前記上型の下動に伴って前記下型側及び支持部材側の何れか他方に当接して前記板押え部材の上動を規制する規制部が設けられたことを特徴とする。 In order to achieve the above object, the press device of the present invention includes:
By moving an upper die that is movable up and down relative to a plate material mounted on a lower die, the plate material is sheared by a lower blade provided on the lower die and an upper blade provided on the upper die. In the press equipment,
The upper blade member is provided on the upper mold and is movable together with the upper mold, and is provided on the upper mold so as to be movable only in a direction orthogonal to the direction in which the plate material is sheared by the upper blade. , a support member that is moved together with the upper mold and is movable up and down independently of the movement of the upper mold; and a plate provided on the support member and mounted on the lower mold when the upper mold moves downward. a plate holding member capable of abutting against the upper surface and movable up and down independently of movement of the support member; provided on the supporting member interposed between the plate holding member and the upper blade member; A cam member movable only in a direction orthogonal to the plate shearing direction,
On the opposing surfaces of the cam member and the plate holding member, as the plate holding member moves upward with respect to the support member during the downward movement of the upper die and after the plate holding member abuts the upper surface of the plate material. , a cam surface is formed that moves the cam member in a direction perpendicular to the sheet shearing direction and away from the lower blade at a predetermined movement ratio with respect to the upward movement amount, and at least one of the support member and the lower die is moved. One side is provided with a regulating part that comes into contact with either the lower mold side or the support member side as the upper mold moves downward, and restricts the upward movement of the plate holding member. .

この構成によれば、剪断される板材の厚さ（上下方向寸法）が大きいほど、上型の下動時、板押え部材は板材の上面に早く当接するので、支持部材に対する板押え部材の（相対的な）上動量が大きくなることから、上記カム部材と板押え部材のカム面により、板材剪断方向と直交方向に向けて上刃部材、すなわち上刃は下刃からより遠くに移動される。このとき、上記カム面は、支持部材に対する板押え部材の上動量に対して規定の移動比率で上刃部材、すなわち上刃を下刃から遠ざけるので、この規定の移動比率を、例えば板材の適正な剪断に必要な下刃と上刃のクリアランスの板材厚さに対する比率に設定することで、板材の厚さに応じた適正な剪断クリアランスを下刃と上刃の間に設けることができる。そして、この適正なクリアランスが確保された時点で、上記規制部によって上記支持部材に対する板押え部材の上動を規制することで、そのクリアランスを維持したまま、下刃と上刃で板材を剪断することができる。したがって、板材の厚さが変化しても、下刃と上刃の間に必要なクリアランスを設けて板材を適正に剪断することが可能となる。 According to this configuration, the larger the thickness (vertical dimension) of the plate material to be sheared, the earlier the plate holding member comes into contact with the upper surface of the plate material when the upper mold moves downward. Since the amount of relative upward movement increases, the upper blade member, that is, the upper blade, is moved farther from the lower blade in the direction orthogonal to the sheet shearing direction by the cam surface of the cam member and plate holding member. . At this time, the cam surface moves the upper blade member, that is, the upper blade, away from the lower blade at a specified movement ratio relative to the amount of upward movement of the plate presser relative to the support member. By setting the ratio of the clearance between the lower blade and the upper blade necessary for proper shearing to the thickness of the plate material, it is possible to provide an appropriate shearing clearance between the lower blade and the upper blade according to the thickness of the plate material. Then, when this appropriate clearance is secured, the regulating section restricts the upward movement of the plate holding member relative to the supporting member, thereby shearing the plate material with the lower blade and the upper blade while maintaining the clearance. be able to. Therefore, even if the thickness of the plate material changes, it is possible to properly shear the plate material by providing the necessary clearance between the lower blade and the upper blade.

また、本発明の他の構成は、前記上型には、前記上刃部材を前記カム部材側に付勢する付勢手段が設けられ、該カム部材及び上刃部材の対向面には、該上刃部材が前記付勢手段によりカム部材に当接された状態で該上刃部材が前記上型と共に上下動される案内面が設けられたことを特徴とする。 Further, in another configuration of the present invention, the upper die is provided with an urging means for urging the upper blade member toward the cam member, and the opposing surfaces of the cam member and the upper blade member are provided with urging means for urging the upper blade member toward the cam member. The present invention is characterized in that a guide surface is provided on which the upper blade member is moved up and down together with the upper die while the upper blade member is brought into contact with the cam member by the urging means.

この構成によれば、上記上型の下動時、上記カム面及び規制部により下刃と上刃のクリアランスが確保された状態で、付勢手段により上刃部材がカム部材に付勢状態で当接され、両者の案内面に案内されて上刃部材が下動されるので、下刃と上刃のクリアランスを維持したまま、板材を適正に剪断することができる。 According to this configuration, when the upper mold moves downward, the upper blade member is biased against the cam member by the biasing means while the clearance between the lower blade and the upper blade is secured by the cam surface and the regulating portion. Since the upper blade member is brought into contact with each other and guided by the guide surfaces of both blades and moved downward, the plate material can be appropriately sheared while maintaining the clearance between the lower blade and the upper blade.

本発明の更なる構成は、上下方向に弾性力を発現する弾性部材が前記上型と支持部材との間に介装されたことを特徴とする。 A further configuration of the present invention is characterized in that an elastic member that exerts elastic force in the vertical direction is interposed between the upper mold and the support member.

この構成によれば、弾性部材の弾性力により上型に対して支持部材及び板押え部材を下方に離間させ、これにより上刃部材よりも先行して板押え部材を板材の上面に当接させることができると共に、上記支持部材に対する板押え部材の上動規制時及びそれ以後の上型及び上刃部材の下動を円滑にして板材の安定した剪断を可能とする。 According to this configuration, the elastic force of the elastic member causes the support member and the plate holding member to move downwardly away from the upper die, thereby causing the plate holding member to come into contact with the upper surface of the plate before the upper blade member. In addition, the upper die and the upper blade member can be smoothly sheared when the upper movement of the plate holding member relative to the support member is restricted and thereafter the lower movement of the upper die and the upper blade member is smooth, thereby making it possible to stably shear the plate material.

本発明の更なる構成は、前記規制部の当接位置を上下方向に調整する調整手段を備えたことを特徴とする。 A further configuration of the present invention is characterized by comprising an adjusting means for vertically adjusting the abutment position of the restriction part.

この構成によれば、上記規制部は上記カム面による下刃と上刃のクリアランスの上限を規制することから、例えば、板材の材質によって板材の厚さに対する下刃と上刃のクリアランスの比率が異なる場合に、上記支持部材と下型が当接する規制部の当接位置を上下方向に調整すれば、下刃と上刃のクリアランスの上限を変更することができ、これにより材質の異なる板材に対しても下刃と上刃のクリアランスを適正に設定して適正な剪断を行うことが可能となる。 According to this configuration, the regulating portion regulates the upper limit of the clearance between the lower blade and the upper blade due to the cam surface, so that, for example, the ratio of the clearance between the lower blade and the upper blade to the thickness of the plate may vary depending on the material of the plate. If they are different, the upper limit of the clearance between the lower blade and the upper blade can be changed by vertically adjusting the abutment position of the regulating part where the support member and the lower mold contact, and this allows the upper limit of the clearance between the lower blade and the upper blade to be changed. It is also possible to perform proper shearing by appropriately setting the clearance between the lower blade and the upper blade.

本発明の更なる構成は、前記調整手段が、前記支持部材側と下型側との間に介装するシムで構成されることを特徴とする。 A further configuration of the present invention is characterized in that the adjustment means is constituted by a shim interposed between the support member side and the lower mold side.

この構成によれば、支持部材側と下型側の間に介装するシムの厚さ（上下方向寸法）を変更するだけで、下刃と上刃のクリアランスの上限を変更することができ、これにより材質の異なる板材に対しても下刃と上刃のクリアランスを適正に設定して適正な剪断を簡易に行うことができる。 According to this configuration, the upper limit of the clearance between the lower blade and the upper blade can be changed by simply changing the thickness (vertical dimension) of the shim interposed between the support member side and the lower mold side. This makes it possible to appropriately set the clearance between the lower blade and the upper blade and easily perform appropriate shearing even for plates made of different materials.

以上説明したように、本発明によれば、板材の厚さが変化しても、下刃と上刃の間に必要なクリアランスを設けて板材を適正に剪断することができ、その際、板材の厚さごとにクリアランスを選択・入力する必要もなく、また上刃や下刃の移動機構や、クリアランス選択・入力装置、クリアランスサーボ機構などの複雑・大がかりな構造も必要としない。 As explained above, according to the present invention, even if the thickness of the plate material changes, it is possible to properly shear the plate material by providing the necessary clearance between the lower blade and the upper blade. There is no need to select and input the clearance for each thickness, and there is no need for a complicated or large-scale structure such as a movement mechanism for the upper and lower blades, a clearance selection/input device, or a clearance servo mechanism.

本発明のプレス装置が適用されたブランキングラインの一実施の形態を示す概略構成図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram which shows one embodiment of the blanking line to which the press apparatus of this invention was applied. 図１のブランキングラインに設けられたプレス装置を正面から見た主要部の概略断面図である。FIG. 2 is a schematic cross-sectional view of the main parts of the press device installed on the blanking line in FIG. 1 when viewed from the front. 図２のプレス装置の作用の説明図である。FIG. 3 is an explanatory diagram of the operation of the press device of FIG. 2; 図２のプレス装置の作用の説明図である。FIG. 3 is an explanatory diagram of the operation of the press device of FIG. 2; 図２のプレス装置の作用の説明図である。FIG. 3 is an explanatory diagram of the operation of the press device of FIG. 2; 図２のプレス装置の作用の説明図である。FIG. 3 is an explanatory diagram of the operation of the press device of FIG. 2; 図２のプレス装置による板材剪断前のクリアランスの説明図である。FIG. 3 is an explanatory diagram of the clearance before shearing the plate material by the press device of FIG. 2; 図２のプレス装置による板材剪断後のクリアランスの説明図である。FIG. 3 is an explanatory diagram of the clearance after shearing the plate material by the press device of FIG. 2;

以下に、本発明のプレス装置の実施の形態について図面を参照して詳細に説明する。図１は、この実施の形態のプレス装置が適用されたブランキングラインの主要部の概略構成を示す正面図である。この実施の形態では、図示しない金属板コイルからシート材（板材）Ｓが、図の左方から右方に向けて連続供給される。この連続供給されるシート材Ｓを順次所定寸法に剪断してブランク材Ｂとするのが剪断機構１００である。この剪断機構１００は、固定型である下型（後述）に設けられた下刃１と、上下動可能な可動型である上型（後述）に設けられた上刃２とで構成される。上刃２はシート材Ｓよりも上方に位置し、下刃１はシート材Ｓよりも下方に位置し、両者は互いに対向する。移動しない下刃１に対して上刃２を上型と共に下動し、両者でシート材Ｓを挟むことによりシート材Ｓが剪断されてブランク材Ｂが切り出される。剪断後、上型は上動する。上型の上動端を上死点、下動端を下死点ともいう。なお、この実施の形態におけるシート材Ｓの剪断方向は図の上下方向なので、以下の説明における図示上下方向は板材剪断方向、図示左右方向は板材剪断方向と直交方向と読み換えることができる。 EMBODIMENT OF THE INVENTION Below, embodiment of the press apparatus of this invention is described in detail with reference to drawings. FIG. 1 is a front view showing a schematic configuration of the main parts of a blanking line to which a press apparatus of this embodiment is applied. In this embodiment, a sheet material (plate material) S is continuously supplied from a metal plate coil (not shown) from the left to the right in the figure. The shearing mechanism 100 sequentially shears the continuously supplied sheet material S into a predetermined size to form a blank material B. This shearing mechanism 100 is composed of a lower blade 1 provided on a fixed lower mold (described later) and an upper blade 2 provided on a movable upper mold (described later) that can move up and down. The upper blade 2 is located above the sheet material S, the lower blade 1 is located below the sheet material S, and both face each other. The upper blade 2 is moved downward together with the upper mold relative to the lower blade 1 which does not move, and the sheet material S is sheared by sandwiching the sheet material S between them and the blank material B is cut out. After shearing, the upper mold moves upward. The upper moving end of the upper mold is also called the top dead center, and the lower moving end is also called the bottom dead center. Note that the shearing direction of the sheet material S in this embodiment is the vertical direction in the drawing, so in the following explanation, the vertical direction in the drawing can be read as the plate shearing direction, and the horizontal direction in the drawing can be read as a direction orthogonal to the plate shearing direction.

切り出されたブランク材Ｂを次工程に搬送するのが搬送機構１０１であり、ベルトコンベヤ１０２で構成される。ベルトコンベヤ１０２では、搬送方向に回転するベルト１０３の上面にブランク材Ｂを載置して次工程に移動する。ベルト１０３は図示しない駆動ローラ及び従動ローラで回転され、駆動ローラは図示しない駆動源で駆動される。ベルト１０３は、例えば、ブランク材Ｂよりも幅の広い無端帯状体からなり、原則的に回転され続けている。また、この実施の形態では、更なる搬送機構１０１として、ベルトコンベヤ１０２と剪断機構１００の間にローラコンベヤ１０４が配設されている。ローラコンベヤ１０４は、周知のように、搬送方向に回転可能な複数のローラ１０５を搬送方向に並べて構成され、実際のローラコンベヤ１０４は、切り出されたブランク材Ｂが自重でベルトコンベヤ１０２側に移動するように、ローラコンベヤ１０４のベルトコンベヤ１０２側を低く設定している。 A conveyance mechanism 101 conveys the cut blank material B to the next process, and is composed of a belt conveyor 102. In the belt conveyor 102, the blank material B is placed on the upper surface of the belt 103 that rotates in the conveyance direction and is moved to the next process. The belt 103 is rotated by a driving roller and a driven roller (not shown), and the driving roller is driven by a driving source (not shown). The belt 103 is made of, for example, an endless band wider than the blank material B, and in principle continues to be rotated. Further, in this embodiment, a roller conveyor 104 is arranged between the belt conveyor 102 and the shearing mechanism 100 as a further conveyance mechanism 101. As is well known, the roller conveyor 104 is configured by arranging a plurality of rollers 105 that can rotate in the conveying direction, and in the actual roller conveyor 104, the cut blank material B moves to the belt conveyor 102 side by its own weight. In order to do so, the belt conveyor 102 side of the roller conveyor 104 is set low.

図２は、図１のブランキングラインに設けられたプレス装置を正面から見た主要部の概略断面図であり、図１と同様に、シート材Ｓは図の左から右に送給される。このプレス装置には、上記ベルトコンベヤ１０２のベルト１０３にシート材Ｓやブランク材Ｂの切粉やバリが付着したり、それらによってベルトコンベヤ１０２のベルト１０３が損耗したりしないように、シート材Ｓを適正に剪断するために、上記下刃１と上刃２のクリアランスを装置側で適正に調整する機構が設けられている。下刃１と上刃２のクリアランスとは、下刃１と上刃２の間に設けられる板材剪断方向と直交方向の隙間である。前述のように、下型３は固定型であり、装置の基台となるベースプレート５上に下刃部材６が搭載されて下型３が構成され、この下刃部材６の図示右側上端部に下刃１が形成されている。また、この実施の形態では、この下刃部材６の上面にシート材Ｓが搭載されるように搬送される。また、上記下刃部材６よりも図示左方には、後述する上側規制部材９に当接する下側規制部材７がベースプレート５から上向きに突設されている。なお、下側規制部材７の上面に記載される二点鎖線は、後述するシム８であり、以下では、このシム８を一旦、無視して説明する。 FIG. 2 is a schematic cross-sectional view of the main parts of the press device installed on the blanking line in FIG. 1, viewed from the front. Similarly to FIG. 1, the sheet material S is fed from left to right in the figure. . In this press device, the sheet material S In order to properly shear the blade, a mechanism is provided for appropriately adjusting the clearance between the lower blade 1 and the upper blade 2 on the apparatus side. The clearance between the lower blade 1 and the upper blade 2 is a gap provided between the lower blade 1 and the upper blade 2 in a direction perpendicular to the direction in which the plate material is sheared. As mentioned above, the lower mold 3 is a fixed type, and the lower mold 3 is constructed by mounting the lower blade member 6 on the base plate 5 that serves as the base of the device. A lower blade 1 is formed. Further, in this embodiment, the lower blade member 6 is transported so that the sheet material S is mounted on the upper surface thereof. Further, on the left side of the lower blade member 6 in the drawing, a lower regulating member 7 that comes into contact with an upper regulating member 9, which will be described later, is provided to protrude upward from the base plate 5. Note that the two-dot chain line written on the upper surface of the lower regulating member 7 is a shim 8, which will be described later, and in the following description, this shim 8 will be ignored for the time being.

また、前述のように、上型４は上下動可能な可動型であり、この実施の形態では、図示しない駆動源により、上型４の主要部を構成する上型部材１０だけが上下動される。換言すれば、上型４は下型３に対して離接方向に移動される。上型部材１０は、図の中央部が凹陥されて下向きに開口するコ字状の断面形状を有し、この凹陥部に、後述する支持部材１１や板押え部材１２、カム部材１３が収容されるようにして取付けられている。また、上型部材１０の中央凹陥部よりも図示右方の下面には、上刃部材１４が図の左右方向（のみ）に移動可能に取付けられている。この上刃部材１４は、上型部材１０への取付部である上方基部１４ａから図の左下方に向けて上刃部１４ｂが延設され、この上刃部１４ｂの図示左方下端部に上記上刃２が形成されている。また、上刃部材１４の図示右方には、上刃部材１４を図の左方に付勢する付勢手段としてガススプリング１５が取付けられている。後述する板押え部材１２とカム部材１３によるカム機構が作用していない状態では、上記ガススプリング１５の付勢力により上刃部１４ｂの図示左側鉛直面１４ｖが板押え部材１２の図示右側鉛直面１２ｖに押当され、これにより上刃部材１４の図示左右動における左方（左動）端が規定されている。そして、この左動端における上刃２の先端部は、下刃１の先端部との間に図示左右方向の隙間ができない位置、すなわち下刃１と上刃２のクリアランスが０になるように設定されている。 Further, as described above, the upper die 4 is a movable type that can move up and down, and in this embodiment, only the upper die member 10 that constitutes the main part of the upper die 4 is moved up and down by a drive source (not shown). Ru. In other words, the upper mold 4 is moved toward and away from the lower mold 3. The upper die member 10 has a U-shaped cross-sectional shape with a concave center portion opening downward, and a supporting member 11, a plate holding member 12, and a cam member 13, which will be described later, are accommodated in this concave portion. It is installed in such a way that Further, an upper blade member 14 is attached to the lower surface of the upper die member 10 on the right side in the drawing than the central concave portion so as to be movable in the left-right direction (only) in the drawing. This upper blade member 14 has an upper blade part 14b extending from an upper base part 14a, which is an attachment part to the upper die member 10, toward the lower left in the figure, and the upper blade part 14b is attached to the lower left end in the figure. An upper blade 2 is formed. Further, a gas spring 15 is attached to the right side of the upper blade member 14 in the drawing as a biasing means for urging the upper blade member 14 to the left in the diagram. When the cam mechanism consisting of the plate holding member 12 and the cam member 13, which will be described later, is not acting, the biasing force of the gas spring 15 causes the illustrated left side vertical surface 14v of the upper blade portion 14b to change to the illustrated right side vertical surface 12v of the plate holding member 12. This defines the left (leftward) end of the upper blade member 14 in its horizontal movement in the drawing. The tip of the upper blade 2 at the left moving end is positioned so that there is no gap in the left-right direction in the drawing between the tip of the lower blade 1, that is, the clearance between the lower blade 1 and the upper blade 2 is 0. It is set.

上記上型部材１０の中央凹陥部には、支持部材１１が取付けられている。この支持部材１１は、後述する板押え部材１２やカム部材１３を支持するためのものであり、上下方向に移動可能に上型部材１０に取付けられている。この支持部材１１は、上型部材１０の中央凹陥部内から抜け落ちないように、例えば図示しないストッパ付きボルト部材などによって吊り下げるようにして上型部材１０に支持されている。この支持部材１１の図示右下方部が凹陥され、この凹陥部に板押え部材１２やカム部材１３が収容されるようにして取付けられている。また、この支持部材１１の上面と上型部材１０の中央凹陥部の下面の間には、上下方向に弾性力を発現する弾性部材１６が介装されており、この実施の形態では、弾性部材１６としてウレタンを用いた。また、この支持部材１１からは、上記下側規制部材７と当接する上側規制部材９が下向きに突設されている。後述するように、また図から推察されるように、上型４の下動に伴って支持部材１１も下動されるが、下型３の下側規制部材７に支持部材１１の上側規制部材９が当接すると、未だ上型４が可動されていても支持部材１１の下動は、その位置で停止される。なお、この上側規制部材９や上記下側規制部材７は、シート材Ｓを跨ぐようにして設けられている。 A support member 11 is attached to the central concave portion of the upper mold member 10. This support member 11 is for supporting a plate holding member 12 and a cam member 13, which will be described later, and is attached to the upper mold member 10 so as to be movable in the vertical direction. This support member 11 is supported by the upper mold member 10 in such a way that it is suspended by, for example, a bolt member with a stopper (not shown) so that it does not fall out of the central concave portion of the upper mold member 10. The lower right portion of the support member 11 in the figure is recessed, and the plate holding member 12 and the cam member 13 are housed in this recess. Further, an elastic member 16 that exerts elastic force in the vertical direction is interposed between the upper surface of the support member 11 and the lower surface of the central concave portion of the upper die member 10. Urethane was used as No. 16. Further, from this support member 11, an upper regulating member 9 that comes into contact with the lower regulating member 7 is provided to protrude downward. As will be described later, and as can be inferred from the figure, as the upper die 4 moves downward, the support member 11 also moves downward. When the support member 9 comes into contact with the support member 11, the downward movement of the support member 11 is stopped at that position even if the upper mold 4 is still moving. The upper regulating member 9 and the lower regulating member 7 are provided so as to straddle the sheet material S.

上記支持部材１１の右下方凹陥部において、上記上刃部材１４の図示左方には、上記下刃部材６の上面に搭載されている状態のシート材Ｓの上面に当接される板押え部材１２が設けられている。この板押え部材１２は、支持部材１１の右下方凹陥部から抜け落ちないように、例えば図示しないストッパ付きボルト部材などによって吊り下げるようにして、上下動可能に支持部材１１に取付けられている。したがって、上記上型部材１０の下動時に、この板押え部材１２の下面がシート材Ｓの上面に当接し、それ以後は、この板押え部材１２は支持部材１１に対して相対的に上動する。この板押え部材１２の図示右側面下部には、前述のように、図の紙面垂直方向に連続する鉛直面（上下面）１２ｖが形成されており、この鉛直面１２ｖの上方には、後述のカム部材１３と共にカム機構を構成するカム面１２ｃが形成されているが、その詳細については次段に述べる。 In the lower right concave portion of the support member 11, on the left side of the upper blade member 14 in the drawing, there is a plate holding member that comes into contact with the upper surface of the sheet material S mounted on the upper surface of the lower blade member 6. 12 are provided. This plate holding member 12 is attached to the support member 11 so as to be movable up and down, for example, by being suspended by a bolt member with a stopper (not shown) so as not to fall off from the lower right concave portion of the support member 11. Therefore, when the upper die member 10 moves downward, the lower surface of this plate holding member 12 comes into contact with the upper surface of the sheet material S, and thereafter, this plate holding member 12 moves upward relative to the supporting member 11. do. As described above, a vertical surface (upper and lower surface) 12v that is continuous in the direction perpendicular to the plane of the drawing is formed at the lower part of the right side surface of the plate holding member 12 in the drawing, and above this vertical surface 12v, there is a vertical surface 12v as described below. A cam surface 12c that constitutes a cam mechanism together with the cam member 13 is formed, the details of which will be described in the next step.

上記支持部材１１の右下方凹陥部の右方端部には、上記板押え部材１２と上刃部材１４の間に介在するようにしてカム部材１３が配設されている。このカム部材１３は、図の左右方向にのみ移動可能に支持部材１１に取付けられている。上記板押え部材１２と、このカム部材１３の対向面は、図に示すように、共に右下から左上に向けて傾斜するカム面１２ｃ、１３ｃに形成されている。このカム面１２ｃ、１３ｃは、後述するように上記支持部材１１に対して板押え部材１２が（相対的に）上動すると、カム部材１３及び上刃部材１４が図の右方に押されて下刃１と上刃２のクリアランスが増加するように機能する。このカム面１２ｃ、１３ｃのカムプロファイルは、図示上下方向の変化量に対する図示左右方向の変化量、すなわちカム機構としての左右動／上下動の比が前述の板材の厚さ（上下方向寸法）に対する下刃１と上刃２の適正クリアランスの比率となるように設定されている。したがって、上記支持部材１１に対する板押え部材１２の上動量に応じて、下刃１と上刃２のクリアランスが一定の比率で増加される。この支持部材１１に対する板押え部材１２の上動量は、後述するようにシート材Ｓの厚さに比例するので、シート材Ｓの厚さが増加すると、下刃１と上刃２のクリアランスが一定の比率で増加する。 A cam member 13 is disposed at the right end of the lower right concave portion of the support member 11 so as to be interposed between the plate holding member 12 and the upper blade member 14. This cam member 13 is attached to the support member 11 so as to be movable only in the left-right direction in the figure. As shown in the figure, the opposing surfaces of the plate holding member 12 and the cam member 13 are both formed into cam surfaces 12c and 13c that are inclined from the lower right to the upper left. These cam surfaces 12c and 13c push the cam member 13 and the upper blade member 14 to the right in the figure when the plate holding member 12 moves upward (relatively) to the support member 11 as described later. It functions to increase the clearance between the lower blade 1 and the upper blade 2. The cam profiles of the cam surfaces 12c and 13c are such that the amount of change in the horizontal direction in the drawing relative to the amount of change in the vertical direction in the drawing, that is, the ratio of the horizontal movement/vertical movement of the cam mechanism to the thickness (vertical dimension) of the plate material mentioned above. The lower blade 1 and the upper blade 2 are set to have an appropriate clearance ratio. Therefore, the clearance between the lower blade 1 and the upper blade 2 is increased at a constant ratio according to the amount of upward movement of the plate holding member 12 with respect to the support member 11. The amount of upward movement of the plate holding member 12 relative to the support member 11 is proportional to the thickness of the sheet material S as described later, so as the thickness of the sheet material S increases, the clearance between the lower blade 1 and the upper blade 2 remains constant. increases at the rate of

また、上記カム部材１３と上刃部材１４の対向面は、共に鉛直面（上下面）１３ｇ、１４ｇに形成されている。具体的には、カム部材１３の図示右側の鉛直面１３ｇに上記上刃部材１４の上方基部１４ａの図示左側の鉛直面１４ｇが上記ガススプリング１５の付勢力で押当され、双方の鉛直面１３ｇ、１４ｇが、上型４の下動に伴う上刃部材１４、すなわち上刃２の下動を案内する案内面を構成している。上記からも推察されるように、上刃部材１４は、上記板押え部材１２とカム部材１３のカム面１２ｃ、１３ｃによるカム機構で下刃１から遠ざかるように図の右方に移動され、これにより下刃１と上刃２のクリアランスが設定されるが、そうしてクリアランスが設定された後は、上記上型部材１０の下動と共に上刃部材１４が下動され、その際、カム部材１３と上刃部材１４の互いに当接している鉛直面１３ｇ、１４ｇが上刃部材１４、すなわち上刃２の下動を案内する案内面として機能する。なお、図では、上記板押え部材１２とカム部材１３が離間しているが、両者は当接していてもよい。 Further, the opposing surfaces of the cam member 13 and the upper blade member 14 are both formed into vertical surfaces (upper and lower surfaces) 13g and 14g. Specifically, the left vertical surface 14g of the upper base 14a of the upper blade member 14 is pressed against the vertical surface 13g of the cam member 13 on the right side in the drawing by the biasing force of the gas spring 15, and both vertical surfaces 13g are pressed. , 14g constitute a guide surface that guides the upper blade member 14, that is, the upper blade 2, as it moves downward as the upper die 4 moves downward. As can be inferred from the above, the upper blade member 14 is moved to the right in the figure away from the lower blade 1 by the cam mechanism formed by the plate holding member 12 and the cam surfaces 12c and 13c of the cam member 13. The clearance between the lower blade 1 and the upper blade 2 is set by the above, but after the clearance is set, the upper blade member 14 is moved down together with the lowering of the upper die member 10, and at that time, the cam member Vertical surfaces 13g and 14g of the upper blade member 13 and the upper blade member 14 that are in contact with each other function as guide surfaces for guiding the lower movement of the upper blade member 14, that is, the upper blade 2. Note that although the plate holding member 12 and the cam member 13 are shown apart from each other in the figure, they may be in contact with each other.

以下、この実施の形態のプレス装置の作用について、図面を用いながら説明する。図２は、例えば、この実施の形態のプレス装置の上死点であり、この状態から上型部材１０を下動すると、それに伴って支持部材１１や板押え部材１２、上刃部材１４などを含む上型４が下動される。やがて、図３に示すように、板押え部材１２の下面がシート材Ｓの上面に当接し、その下動が規制されるので、その後の上型部材１０及び支持部材１１の下動では、板押え部材１２は支持部材１１に対して相対的に上動する。なお、図３では、上側規制部材９の下面がシート材Ｓの上面に当接しているように示されているが、上記のように、上側規制部材９や下側規制部材７はシート材Ｓを跨ぐように配置されているので、上側規制部材９の下面がシート材Ｓの上面に当接することはない。 Hereinafter, the operation of the press apparatus of this embodiment will be explained using the drawings. FIG. 2 shows, for example, the top dead center of the press machine of this embodiment, and when the upper die member 10 is moved downward from this state, the support member 11, plate holding member 12, upper blade member 14, etc. are moved accordingly. The upper die 4 containing the upper mold 4 is moved down. Eventually, as shown in FIG. 3, the lower surface of the plate holding member 12 comes into contact with the upper surface of the sheet material S, and its downward movement is regulated. The holding member 12 moves upward relative to the supporting member 11. Although FIG. 3 shows that the lower surface of the upper regulating member 9 is in contact with the upper surface of the sheet material S, as described above, the upper regulating member 9 and the lower regulating member 7 are in contact with the upper surface of the sheet material S. Since the upper regulating member 9 is disposed so as to straddle the upper regulating member 9, the lower surface of the upper regulating member 9 does not come into contact with the upper surface of the sheet material S.

前述のように、板押え部材１２がシート材Ｓに当接した後は、上型部材１０の下動に伴って板押え部材１２は支持部材１１に対して上動するので、やがて図４に示すように、板押え部材１２とカム部材１３のカム面１２ｃ、１３ｃ同士が当接し、これ以後、支持部材１１に対する板押え部材１２の上動による上記カム面１２ｃ、１３ｃのカム機能でカム部材１３及び上刃部材１４が図の右方に移動され、下刃１と上刃２のクリアランスが次第に増加される。このクリアランスの増加量は、シート材Ｓの厚さが大きいほど、板押え部材１２がシート材Ｓに早く当接することから、シート材Ｓの厚さに比例する。その後、上型部材１０の下動に伴って支持部材１１も下動されるので、やがて図５に示すように、上側規制部材９の下面が下側規制部材７の上面に当接する。したがって、これ以後、上型部材１０や上刃部材１４が下動されても支持部材１１は下動せず、したがって支持部材１１に対する板押え部材１２の上動も停止されるので、その時点で上刃部材１４の位置、すなわち下刃１と上刃２のクリアランスも固定される。 As described above, after the plate holding member 12 comes into contact with the sheet material S, the plate holding member 12 moves upward with respect to the support member 11 as the upper mold member 10 moves downward, so that the state shown in FIG. As shown, the cam surfaces 12c and 13c of the plate holding member 12 and the cam member 13 come into contact with each other, and thereafter, the cam function of the cam surfaces 12c and 13c due to the upward movement of the plate holding member 12 relative to the support member 11 causes the cam members to 13 and the upper blade member 14 are moved to the right in the figure, and the clearance between the lower blade 1 and the upper blade 2 is gradually increased. The amount of increase in this clearance is proportional to the thickness of the sheet material S, because the greater the thickness of the sheet material S, the earlier the plate holding member 12 comes into contact with the sheet material S. Thereafter, as the upper die member 10 moves downward, the support member 11 is also moved downward, so that the lower surface of the upper regulating member 9 eventually comes into contact with the upper surface of the lower regulating member 7, as shown in FIG. Therefore, from now on, even if the upper mold member 10 and the upper blade member 14 are moved down, the support member 11 will not move down, and therefore the upward movement of the plate holding member 12 relative to the support member 11 will also be stopped, so at that point. The position of the upper blade member 14, that is, the clearance between the lower blade 1 and the upper blade 2 is also fixed.

その後も、上型部材１０と共に上刃部材１４は下動され続けるので、やがて図６に示すように、上刃２がシート材Ｓを超えて下動し、ブランク材Ｂが剪断により切り出される。その際、ガススプリング１５によって付勢状態で当接されている上刃部材１４の図示左側鉛直面１４ｇがカム部材１３の図示右側鉛直面１３ｇに案内されて、上刃２は鉛直方向に下動され、設定されたクリアランスを維持したままシート材Ｓが剪断される。したがって、このクリアランスがシート材Ｓの厚さに応じた適正なものであれば、剪断されるシート材Ｓやブランク材Ｂにはバリや切粉が発生しにくい。また、支持部材１１と上型部材１０の間に介装された弾性部材（ウレタン）１６の弾性力により、下側規制部材７と上側規制部材９の当接時の衝撃が緩和されると共に、その後の上型部材１０及び上刃部材１４の下動を円滑にしてシート材Ｓの剪断を安定化させることができる。 After that, the upper blade member 14 continues to be moved downward together with the upper die member 10, so that the upper blade 2 eventually moves downward beyond the sheet material S, and the blank material B is cut out by shearing, as shown in FIG. At this time, the left side vertical surface 14g of the upper blade member 14, which is urged by the gas spring 15, is guided by the right side vertical surface 13g of the cam member 13, and the upper blade 2 is moved downward in the vertical direction. Then, the sheet material S is sheared while maintaining the set clearance. Therefore, if this clearance is appropriate according to the thickness of the sheet material S, burrs and chips are unlikely to be generated on the sheet material S or blank material B to be sheared. In addition, due to the elastic force of the elastic member (urethane) 16 interposed between the support member 11 and the upper die member 10, the impact when the lower regulating member 7 and the upper regulating member 9 come into contact is alleviated. The subsequent downward movement of the upper die member 10 and the upper blade member 14 is made smooth, and the shearing of the sheet material S can be stabilized.

図７（Ａ）は、シート材Ｓの厚さ（上下方向寸法）が小さい場合の下刃１に対する上刃部材１４の移動量を示し、図７（Ｂ）は、シート材Ｓの厚さが大きい場合の下刃１に対する上刃部材１４の移動量を示す。同様に、図８（Ａ）は、シート材Ｓの厚さが小さい場合の下刃１と上刃２のクリアランスを示し、図８（Ｂ）は、シート材Ｓの厚さが大きい場合の下刃１と上刃２のクリアランスを示す。上記板押え部材１２は、シート材Ｓの厚さ（上下方向寸法）が大きいほど、シート材Ｓの上面に早く当接する。したがって、支持部材１１に対する板押え部材１２の相対的な上動量は、シート材Ｓの厚さが大きいほど大きく、その結果、シート材Ｓの厚さが大きいほど、上刃部材１４、すなわち上刃２の図示右方への移動量も大きい。下刃１は固定されているので、上刃２の図示右方への移動量は、下刃１と上刃２のクリアランスとなり、したがって下刃１と上刃２のクリアランスはシート材Ｓの厚さが大きいほど大きくなる。この下刃１と上刃２のクリアランスは、上記カム面１２ｃ、１３ｃの傾斜に比例し、この実施の形態では、カム面１２ｃ、１３ｃの傾斜は、シート材Ｓの厚さに応じた適正クリアランスの比率に一致しているので、カム面１２ｃ、１３ｃによって得られる下刃１と上刃２のクリアランスは、シート材Ｓの厚さに応じた適正なものとなる。 7(A) shows the amount of movement of the upper blade member 14 with respect to the lower blade 1 when the thickness (vertical dimension) of the sheet material S is small, and FIG. 7(B) shows the amount of movement of the upper blade member 14 with respect to the lower blade 1 when the thickness of the sheet material S The amount of movement of the upper blade member 14 with respect to the lower blade 1 in the case of a large amount is shown. Similarly, FIG. 8(A) shows the clearance between the lower blade 1 and the upper blade 2 when the thickness of the sheet material S is small, and FIG. 8(B) shows the clearance between the lower blade 1 and the upper blade 2 when the thickness of the sheet material S is large. The clearance between blade 1 and upper blade 2 is shown. The plate holding member 12 contacts the upper surface of the sheet material S more quickly as the thickness (vertical dimension) of the sheet material S becomes larger. Therefore, the relative upward movement amount of the plate holding member 12 with respect to the support member 11 increases as the thickness of the sheet material S increases. The amount of movement of No. 2 to the right in the drawing is also large. Since the lower blade 1 is fixed, the amount of movement of the upper blade 2 to the right in the figure is the clearance between the lower blade 1 and the upper blade 2, and therefore the clearance between the lower blade 1 and the upper blade 2 is the thickness of the sheet material S. The larger the value, the larger it becomes. The clearance between the lower blade 1 and the upper blade 2 is proportional to the inclination of the cam surfaces 12c and 13c, and in this embodiment, the inclination of the cam surfaces 12c and 13c is determined by the appropriate clearance according to the thickness of the sheet material S. Therefore, the clearance between the lower blade 1 and the upper blade 2 obtained by the cam surfaces 12c and 13c is appropriate depending on the thickness of the sheet material S.

次に、剪断されるシート材Ｓに、下刃１と上刃２の適正クリアランスの厚さに対する比率の異なる材質のものが混在する場合の対応について説明する。このような場合、板押え部材１２とカム部材１３のカム面１２ｃ、１３ｃのカムプロファイルを下刃１と上刃２の適正クリアランスの比率に応じたものに変更するのが理想的であるが、そのようにすると、少なくとも板押え部材１２とカム部材１３を段取り替えする必要が生じ、例えば車両用パネルの量産においては現実的でない。そこで、この実施の形態では、上記下側規制部材７の上面にセットするシム８を下刃－上刃クリアランスの調整手段として用いる。前述のように、支持部材１１に対する板押え部材１２の上動は、下側規制部材７と上側規制部材９の当接によって規制される。換言すれば、支持部材１１に対する板押え部材１２の上動限を変更することで、下刃１と上刃２のクリアランスの上限値を変更することができる。 Next, a description will be given of a case where the sheet material S to be sheared includes materials having different ratios of appropriate clearance between the lower blade 1 and the upper blade 2 to the thickness. In such a case, it would be ideal to change the cam profiles of the cam surfaces 12c and 13c of the plate holding member 12 and the cam member 13 to one that corresponds to the appropriate clearance ratio between the lower blade 1 and the upper blade 2. If this is done, it will be necessary to change the setup of at least the plate holding member 12 and the cam member 13, which is not practical, for example, in mass production of vehicle panels. Therefore, in this embodiment, a shim 8 set on the upper surface of the lower regulating member 7 is used as means for adjusting the lower blade-upper blade clearance. As described above, the upward movement of the plate holding member 12 relative to the support member 11 is regulated by the contact between the lower regulating member 7 and the upper regulating member 9. In other words, by changing the upper limit of movement of the plate holding member 12 with respect to the support member 11, the upper limit of the clearance between the lower blade 1 and the upper blade 2 can be changed.

例えば、アルミニウム製のシート材Ｓと鋼製のシート材Ｓでは、一般的に、アルミニウム製のシート材Ｓの方が鋼製のシート材Ｓよりも、下刃１と上刃２の適正クリアランスの板材厚さに対する比率が大きい。そこで、例えば、上記板押え部材１２とカム部材１３のカム面１２ｃ、１３ｃのカムプロファイルとしては、アルミニウム製のシート材Ｓにおける下刃１と上刃２の適正クリアランスの板材厚さに対する比率を適用する。このカムプロファイルを有するカム部材１３と板押え部材１２を用いて鋼製のシート材Ｓを剪断しようとすると、下側規制部材７と上側規制部材９の当接で規定される下刃１と上刃２のクリアランスは、鋼製のシート材Ｓに対する適正クリアランスよりも大きくなってしまう。そこで、下側規制部材７の上面にシム８をセットすれば、そのシム８の厚さ（上下方向寸法）分だけ、下側規制部材７と上側規制部材９の当接タイミングを早くすることができるので、その分だけ、下刃１と上刃２のクリアランスを小さくすることができる。 For example, between an aluminum sheet material S and a steel sheet material S, the aluminum sheet material S generally has a better clearance between the lower blade 1 and the upper blade 2 than the steel sheet material S. The ratio to the plate thickness is large. Therefore, for example, as the cam profile of the cam surfaces 12c and 13c of the plate holding member 12 and the cam member 13, the ratio of the appropriate clearance between the lower blade 1 and the upper blade 2 in the aluminum sheet material S to the thickness of the plate material is applied. do. When attempting to shear a steel sheet material S using the cam member 13 and the plate holding member 12 having this cam profile, the lower blade 1 defined by the contact between the lower regulating member 7 and the upper regulating member 9 and the upper The clearance of the blade 2 becomes larger than the appropriate clearance for the steel sheet material S. Therefore, by setting the shim 8 on the upper surface of the lower regulating member 7, the timing of contact between the lower regulating member 7 and the upper regulating member 9 can be made earlier by the thickness (vertical dimension) of the shim 8. Therefore, the clearance between the lower blade 1 and the upper blade 2 can be reduced accordingly.

下側規制部材７と上側規制部材９の間に介装されるシム８の使い方は、種々に考えられるが、大きめに設定される下刃１と上刃２のクリアランスに対し、シム８の厚さを用いて達成されるクリアランスを小さめに補正するように用いるのが、簡易である。また、前述のように、剪断端面のバリや切粉発生の下刃－上刃クリアランスに対する依存性は、鋼製シート材Ｓよりもアルミニウム製シート材Ｓの方が大きいので、例えばアルミニウム製シート材Ｓに対しては、上記カム面１２ｃ、１３ｃのカムプロファイルによって下刃－上刃クリアランスを厳密に管理し、鋼製シート材Ｓに対する下刃－上刃クリアランスは、一定の厚さごとに、シム８を取り換えるようにするだけで、例えば車両用パネルの量産では、十分に剪断端面のバリや切粉の発生を低減することが可能である。 There are various ways to use the shim 8 interposed between the lower regulating member 7 and the upper regulating member 9, but the thickness of the shim 8 is It is simple to use it to correct the clearance achieved by using the distance to a smaller value. Furthermore, as mentioned above, the dependence of burrs on the sheared end surface and the generation of chips on the lower blade-upper blade clearance is greater in the aluminum sheet material S than in the steel sheet material S, so for example, the aluminum sheet material S For S, the lower blade-upper blade clearance is strictly controlled by the cam profile of the cam surfaces 12c and 13c, and the lower blade-upper blade clearance for the steel sheet material S is determined by adjusting the shim for each constant thickness. For example, in the mass production of vehicle panels, by simply replacing 8, it is possible to sufficiently reduce the occurrence of burrs and chips on the sheared end surface.

このように、上記実施の形態のプレス装置では、剪断されるシート材（板材）Ｓの厚さ（上下方向寸法）が大きいほど、上型４の下動時、板押え部材１２はシート材Ｓの上面に早く当接するので、支持部材１１に対する板押え部材１２の相対的な上動量が大きくなることから、上記板押え部材１２とカム部材１３のカム面１２ｃ、１３ｃにより、板材剪断方向と直交方向に向けて上刃部材１４、すなわち上刃２は下刃１からより遠くに移動される。このとき、上記カム面１２ｃ、１３ｃは、支持部材１１に対する板押え部材１２の上動量に対して規定の移動比率で上刃部材１４、すなわち上刃２を下刃１から遠ざけるので、この規定の移動比率を、シート材Ｓの適正な剪断に必要な下刃１と上刃２のクリアランスの板材厚さに対する比率に設定することで、シート材Ｓの厚さに応じた適正なクリアランスを下刃１と上刃２の間に設けることができる。そして、この適正なクリアランスが確保された時点で、上記下側規制部材７及び上側規制部材９によって上記支持部材１１に対する板押え部材１２の上動を規制することで、そのクリアランスを維持したまま、下刃１と上刃２でシート材Ｓを剪断することができる。したがって、シート材Ｓの厚さが変化しても、下刃１と上刃２の間に必要なクリアランスを設けてシート材Ｓを適正に剪断することが可能となる。 In this way, in the press apparatus of the above embodiment, the larger the thickness (vertical dimension) of the sheet material (plate material) S to be sheared, the more the plate pressing member 12 moves the sheet material S when the upper mold 4 moves downward. Since the upper surface is brought into contact with the upper surface quickly, the amount of upward movement of the plate holding member 12 relative to the support member 11 becomes large. In this direction the upper blade member 14, ie the upper blade 2, is moved further away from the lower blade 1. At this time, the cam surfaces 12c and 13c move the upper blade member 14, that is, the upper blade 2, away from the lower blade 1 at a specified movement ratio with respect to the amount of upward movement of the plate holding member 12 relative to the support member 11. By setting the movement ratio to the ratio of the clearance between the lower blade 1 and the upper blade 2 necessary for proper shearing of the sheet material S to the thickness of the plate material, the lower blade can maintain an appropriate clearance according to the thickness of the sheet material S. It can be provided between the upper blade 1 and the upper blade 2. When this appropriate clearance is secured, the lower regulating member 7 and the upper regulating member 9 regulate the upward movement of the plate holding member 12 relative to the supporting member 11, thereby maintaining the clearance. The lower blade 1 and the upper blade 2 can shear the sheet material S. Therefore, even if the thickness of the sheet material S changes, it is possible to properly shear the sheet material S by providing a necessary clearance between the lower blade 1 and the upper blade 2.

また、上記上型４の下動時、上記カム面１２ｃ、１３ｃ及び上側規制部材９及び下側規制部材７により下刃１と上刃２のクリアランスが確保された状態で、ガススプリング（付勢手段）１５により上刃部材１４がカム部材１３に付勢状態で当接され、両者の案内面に案内されて上刃部材１４が下動されるので、下刃１と上刃２のクリアランスを維持したまま、シート材Ｓを適正に剪断することができる。 Further, when the upper mold 4 moves downward, a gas spring (energizing The upper blade member 14 is brought into contact with the cam member 13 in a biased state by means) 15, and the upper blade member 14 is moved downward guided by the guide surfaces of both, so that the clearance between the lower blade 1 and the upper blade 2 is maintained. The sheet material S can be appropriately sheared while maintaining the shape.

また、弾性部材１６の弾性力により上型４に対して支持部材１１及び板押え部材１２を下方に離間させ、これにより上刃部材１４よりも先行して板押え部材１２をシート材Ｓの上面に当接させることができると共に、上記支持部材１１に対する板押え部材１２の上動規制時及びそれ以後の上型４及び上刃部材１４の下動を円滑にしてシート材Ｓの安定した剪断を可能とする。 Further, the elastic force of the elastic member 16 causes the support member 11 and the plate holding member 12 to be spaced downwardly from the upper mold 4, thereby placing the plate holding member 12 on the upper surface of the sheet material S in advance of the upper blade member 14. In addition, the sheet material S can be sheared stably by smoothing the downward movement of the upper die 4 and the upper blade member 14 when regulating the upward movement of the plate holding member 12 relative to the support member 11 and thereafter. possible.

また、上記上側規制部材９及び下側規制部材７は上記カム面１２ｃ、１３ｃによる下刃１と上刃２のクリアランスの上限を規制することから、シート材Ｓの材質によって板材厚さに対する下刃１と上刃２の適正クリアランスの比率が異なる場合に、上記支持部材１１と下型３が当接する上側規制部材９及び下側規制部材７の当接位置を上下方向に調整すれば、下刃１と上刃２のクリアランスの上限を変更することができ、これにより材質の異なるシート材Ｓに対しても下刃１と上刃２のクリアランスを適正に設定して適正な剪断を行うことが可能となる。 Furthermore, since the upper regulating member 9 and the lower regulating member 7 regulate the upper limit of the clearance between the lower blade 1 and the upper knife 2 due to the cam surfaces 12c and 13c, the lower blade may vary depending on the material of the sheet material S depending on the thickness of the plate material. 1 and the upper blade 2, if the abutting positions of the upper regulating member 9 and the lower regulating member 7, which the supporting member 11 and the lower mold 3 contact, are adjusted in the vertical direction, the lower knife The upper limit of the clearance between the lower blade 1 and the upper blade 2 can be changed, thereby making it possible to appropriately set the clearance between the lower blade 1 and the upper blade 2 and perform proper shearing even for sheet materials S of different materials. It becomes possible.

また、支持部材１１側と下型３側の間に介装するシム８の厚さ（上下方向寸法）を変更するだけで、下刃１と上刃２のクリアランスの上限を変更することができ、これにより材質の異なるシート材Ｓに対しても下刃１と上刃２のクリアランスを適正に設定して適正な剪断を簡易に行うことができる。 Furthermore, the upper limit of the clearance between the lower blade 1 and the upper blade 2 can be changed by simply changing the thickness (vertical dimension) of the shim 8 interposed between the support member 11 side and the lower mold 3 side. As a result, the clearance between the lower blade 1 and the upper blade 2 can be appropriately set to easily perform appropriate shearing even for sheet materials S made of different materials.

以上、実施の形態に係るプレス装置について説明したが、本件発明は、上記実施の形態で述べた構成に限定されるものではなく、本件発明の要旨の範囲内で種々変更が可能である。例えば、上記実施の形態では、下型３と支持部材１１の双方に下側規制部材７及び上側規制部材９の夫々を設けたが、これらの規制部材は、下型３及び支持部材１１の何れか一方だけに設けるようにしてもよい。また、個別の規制部材を用いる代わりに、下型３の一部を規制部としたり、支持部材１１の一部を規制部としたりすることも可能である。すなわち、支持部材１１に設けた規制部が下型３に直接当接するか、下型３に設けた規制部が支持部材１１に直接当接するようにしても、下刃１と上刃２のクリアランスの上限を規制することができる。 Although the press apparatus according to the embodiment has been described above, the present invention is not limited to the configuration described in the above embodiment, and various changes can be made within the scope of the gist of the present invention. For example, in the embodiment described above, the lower regulating member 7 and the upper regulating member 9 are provided on both the lower die 3 and the support member 11, respectively. It may be provided only on one side. Moreover, instead of using individual regulating members, it is also possible to use a part of the lower mold 3 as a regulating part or a part of the support member 11 as a regulating part. That is, even if the regulating part provided on the support member 11 directly contacts the lower mold 3 or the regulating part provided on the lower mold 3 directly contacts the supporting member 11, the clearance between the lower blade 1 and the upper blade 2 can be regulated.

また、上記実施の形態では、ブランキングラインに設けられたプレス装置についてのみ詳述したが、下型３に設けた下刃１と上型４に設けた上刃２とで金属製板材を剪断するプレス装置であれば、本発明は同様に適用可能である。 Further, in the above embodiment, only the press device provided on the blanking line was described in detail, but the lower blade 1 provided on the lower mold 3 and the upper blade 2 provided on the upper mold 4 shear the metal plate material. The present invention is similarly applicable to any press device that does.

１下刃
２上刃
３下型
４上型
７下側規制部材（規制部）
８シム（調整手段）
９上側規制部材（規制部）
１１支持部材
１２板押え部材
１２ｃカム面
１３カム部材
１３ｃカム面
１３ｇ鉛直面（案内面）
１４上刃部材
１４ｇ鉛直面（案内面）
１５ガススプリング（付勢手段）
１６弾性部材
Ｂブランク材
Ｓシート材（板材） 1 Lower blade 2 Upper blade 3 Lower mold 4 Upper mold 7 Lower regulating member (regulating part)
8 Shim (adjustment means)
9 Upper regulating member (regulating part)
11 Support member 12 Plate holding member 12c Cam surface 13 Cam member 13c Cam surface 13g Vertical surface (guide surface)
14 Upper blade member 14g Vertical surface (guide surface)
15 Gas spring (biasing means)
16 Elastic member B Blank material S Sheet material (plate material)

Claims

下型上に搭載された板材に対して上下動可能な上型を下動することで、前記下型に設けられた下刃と前記上型に設けられた上刃とで該板材を剪断するプレス装置において、
前記上刃が設けられ、前記上型と共に移動されると共に、該上刃による前記板材剪断方向と直交方向のみに移動可能に該上型に設けられた上刃部材と、
前記上型に設けられ、該上型と共に移動されると共に、該上型の動きとは別個に上下動可能な支持部材と、
前記支持部材に設けられ、前記上型の下動時に前記下型上に搭載された板材の上面に当接可能で、該支持部材の動きとは別個に上下動可能な板押え部材と、
前記板押え部材と前記上刃部材との間に介在して前記支持部材に設けられ、前記板材剪断方向と直交方向のみに移動可能なカム部材と、を備え、
前記カム部材及び前記板押え部材の対向面には、前記上型の下動時で且つ該板押え部材が前記板材上面に当接した後の前記支持部材に対する該板押え部材の上動に伴い、該上動量に対して予め規定された移動比率で前記カム部材を前記板材剪断方向と直交方向で且つ前記下刃から遠ざける方向に移動させるカム面が形成され、
前記支持部材及び下型の少なくとも一方には、前記上型の下動に伴って前記下型側及び支持部材側の何れか他方に当接して前記板押え部材の上動を規制する規制部が設けられたことを特徴とするプレス装置。 By moving an upper die that is movable up and down relative to a plate material mounted on a lower die, the plate material is sheared by a lower blade provided on the lower die and an upper blade provided on the upper die. In the press equipment,
an upper blade member provided on the upper mold such that the upper blade is provided and is movable together with the upper mold and is movable only in a direction orthogonal to the direction in which the plate material is sheared by the upper blade;
a support member that is provided on the upper mold, is moved together with the upper mold, and is movable up and down independently of the movement of the upper mold;
a plate holding member that is provided on the support member and can come into contact with the upper surface of the plate mounted on the lower mold when the upper mold moves downward, and can move up and down independently of the movement of the support member;
a cam member interposed between the plate holding member and the upper blade member, provided on the support member, and movable only in a direction perpendicular to the plate shearing direction;
On the opposing surfaces of the cam member and the plate holding member, as the plate holding member moves upward with respect to the support member during the downward movement of the upper die and after the plate holding member abuts the upper surface of the plate material. , a cam surface is formed that moves the cam member in a direction perpendicular to the plate shearing direction and away from the lower blade at a predetermined movement ratio with respect to the upward movement amount;
At least one of the support member and the lower die is provided with a regulating portion that comes into contact with either the lower die side or the support member side as the upper die moves downward and restricts the upward movement of the plate holding member. A press device characterized by being provided with.

前記上型には、前記上刃部材を前記カム部材側に付勢する付勢手段が設けられ、
該カム部材及び上刃部材の対向面には、該上刃部材が前記付勢手段によりカム部材に当接された状態で該上刃部材が前記上型と共に上下動される案内面が設けられたことを特徴とする請求項１に記載のプレス装置。 The upper mold is provided with an urging means for urging the upper blade member toward the cam member,
A guide surface is provided on opposing surfaces of the cam member and the upper blade member, and the upper blade member is moved up and down together with the upper die while the upper blade member is in contact with the cam member by the urging means. The press device according to claim 1, characterized in that:

上下方向に弾性力を発現する弾性部材が前記上型と支持部材との間に介装されたことを特徴とする請求項１又は２に記載のプレス装置。 3. The press apparatus according to claim 1, wherein an elastic member that exerts elastic force in the vertical direction is interposed between the upper die and the support member.

前記規制部の当接位置を上下方向に調整する調整手段を備えたことを特徴とする請求項１乃至３の何れか１項に記載のプレス装置。 The press apparatus according to any one of claims 1 to 3, further comprising an adjustment means for vertically adjusting a contact position of the restriction part.

前記調整手段が、前記支持部材側と下型側との間に介装するシムで構成されることを特徴とする請求項４に記載のプレス装置。 5. The press apparatus according to claim 4, wherein the adjusting means includes a shim interposed between the supporting member side and the lower mold side.