JPH09136123A - Initial pressure loading equipment for press die - Google Patents
Initial pressure loading equipment for press dieInfo
- Publication number
- JPH09136123A JPH09136123A JP29404695A JP29404695A JPH09136123A JP H09136123 A JPH09136123 A JP H09136123A JP 29404695 A JP29404695 A JP 29404695A JP 29404695 A JP29404695 A JP 29404695A JP H09136123 A JPH09136123 A JP H09136123A
- Authority
- JP
- Japan
- Prior art keywords
- elastic body
- initial pressure
- fastening member
- bush
- load device
- 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.)
- Granted
Links
Landscapes
- Springs (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プレス金型に組み
込まれたコイルスプリング又はゴム等の弾性体に予め初
期圧力を負荷せしめるプレス金型用の初圧負荷装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an initial pressure load device for a press die for preliminarily applying an initial pressure to an elastic body such as a coil spring or rubber incorporated in the press die.
【０００２】[0002]
【従来の技術】従来、斯かるプレス金型用の初圧負荷装
置としては、例えば、図８〜図１０に示すものが従来例
として周知である。この従来例における初圧負荷装置と
しては、プレス装置の上ラムに取り付けられる上金型１
に被加工物の押さえ固定の目的で内蔵されたコイルスプ
リング又はゴム等の弾性体３が利用されており、その配
置及び固定手段としては、図８に示すように、所定形状
の上金型１と、該上金型１の下位に配設された被加工物
用の押え板２と、該押え板２と前記上金型１との間に介
在されたコイルスプリング等の弾性体３と、基端側が前
記押え板２に支持された段付きボルト４とを備え、か
つ、前記押え板２の上面に前記弾性体３を自由長のまま
配置すると共に、その中に短筒状のスプリングガイドブ
ッシュ５を介して前記段付きボルト４を締結固定してい
る。2. Description of the Related Art Conventionally, as an initial pressure load device for such a press die, for example, those shown in FIGS. 8 to 10 are well known as conventional examples. As the initial pressure load device in this conventional example, an upper mold 1 attached to an upper ram of a press device is used.
An elastic body 3 such as a coil spring or rubber, which is built in for the purpose of pressing and fixing the workpiece, is used. As its arrangement and fixing means, as shown in FIG. A pressing plate 2 for a workpiece which is disposed below the upper mold 1, and an elastic body 3 such as a coil spring interposed between the pressing plate 2 and the upper mold 1. A base end side is provided with a stepped bolt 4 supported by the pressing plate 2, and the elastic body 3 is arranged on the upper surface of the pressing plate 2 in a free length, and a short tubular spring guide is provided therein. The stepped bolt 4 is fastened and fixed via a bush 5.
【０００３】また、被加工物の押さえ力を増大させる目
的で予め初期圧力を負荷する場合は、図９に示すよう
に、前記上金型１と押え板２との間に、コイルスプリン
グ等の弾性体３の他、ネジを応用した初圧負荷用のスト
ッパーボルト８を介在したり、図１０に示すように、弾
性体３内にネジ棒９の差し込み頭部をダブルナット１０
で締め込み、干渉する相手部を逃げ穴１１等で逃し得る
ように組み付けている。When an initial pressure is applied in advance in order to increase the pressing force of the work piece, as shown in FIG. 9, a coil spring or the like is provided between the upper die 1 and the holding plate 2. In addition to the elastic body 3, a screw-applied stopper bolt 8 for initial pressure load may be interposed, or as shown in FIG.
It is assembled so that the other part that interferes can be escaped through the escape hole 11 or the like.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述し
た従来の初圧負荷手段では、被加工物の押さ板２に逃げ
穴１１やネジ操作用のスペースが必要になるため、特に
曲面部の穴、曲げ加工では、そのスペースの確保が困難
であった。However, in the above-mentioned conventional initial pressure loading means, the pressing plate 2 of the work piece requires the clearance hole 11 and the space for screw operation. In the bending process, it was difficult to secure the space.
【０００５】また、弾性体３内にネジ棒９の差し込み頭
部をダブルナット１０で締め込み、干渉する相手部を逃
げ穴１１等で逃がす方法でも、複数個の弾性体３，３…
の高さを同一に調整する時間が必要になる他、逃げ穴の
機械加工など、余分な工数を要していた。Further, also by a method of inserting the screw rod 9 into the elastic body 3 by tightening the head portion with the double nut 10 and letting the interfering partner portion escape through the escape hole 11 or the like, a plurality of elastic bodies 3, 3 ...
In addition to the time required to adjust the heights of the holes to the same level, it also required extra man-hours such as machining relief holes.
【０００６】本発明は斯かる問題点に鑑みてなされたも
ので、従来使用されていたスプリングガイドブッシュや
逃げ穴及びネジ操作用スペースを必要とせずに簡単かつ
確実にコイルスプリング等の弾性体に予め初期圧力を負
荷させることができるプレス金型用の初圧負荷装置を提
供することを目的とするものである。The present invention has been made in view of the above problems, and it is simple and reliable to use an elastic body such as a coil spring without the need for a spring guide bush, an escape hole and a space for screw operation which have been used conventionally. It is an object of the present invention to provide an initial pressure loading device for a press die that can be loaded with an initial pressure in advance.
【０００７】[0007]
【課題を解決するための手段】上述の如き従来の問題点
を解決し、所期の目的を達成するため本発明の要旨とす
る構成は、所定形状の上金型と、該上金型の下位に配設
された被加工物用の押え板と、該押え板と前記上金型と
の間に介在されたコイルスプリング若しくはゴム等から
なる弾性体と、基端側が前記押え板に支持された段付き
ボルト等の止着部材とを備え、かつ、前記弾性体は、遊
端側に鍔付きブッシュを介して前記止着部材を変位自在
に保持してなるプレス金型用の初圧負荷装置に存する。SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems and achieve the intended purpose, the structure which is the gist of the present invention is an upper mold having a predetermined shape, and an upper mold having a predetermined shape. A work piece pressing plate disposed in a lower order, an elastic body made of a coil spring or rubber interposed between the holding plate and the upper die, and a base end side supported by the holding plate. And a fastening member such as a stepped bolt, and the elastic body holds the fastening member displaceably on the free end side through a flanged bush, and an initial pressure load for a press die. It exists in the device.
【０００８】また、前記鍔付きブッシュは、前記弾性体
の遊端面側を押圧支持するための外鍔と、少なくとも前
記止着部材の大径部を係止するための内鍔とを備えて同
止着部材を前記弾性体内に摺動自在に保持するのが良
い。The flanged bush is provided with an outer flange for pressing and supporting the free end surface side of the elastic body and an inner flange for locking at least the large diameter portion of the fastening member. It is preferable that the fastening member is slidably held in the elastic body.
【０００９】更に、前記外鍔は、前記弾性体との接触面
側に３〜１０度の勾配を設けても良い。Further, the outer collar may be provided with a gradient of 3 to 10 degrees on the contact surface side with the elastic body.
【００１０】このように構成される本発明のプレス金型
用の初圧負荷装置は、所定形状の上金型と、該上金型の
下位に配設された被加工物用の押え板と、該押え板と前
記上金型との間に介在されたコイルスプリング若しくは
ゴム等からなる弾性体と、基端側が前記押え板に支持さ
れた段付きボルト等の止着部材とを備え、かつ、前記弾
性体が、遊端側に鍔付きブッシュを介して前記止着部材
を変位自在に保持したことによって、同弾性体は、自由
長の状態から単体として初期圧力が負荷され、また、被
加工物の押さえ板等が組み付けられることも相俟って、
所定の撥條反力が得られる撓み量まで変形可能となる。The initial pressure load device for a press die of the present invention thus constructed has an upper die having a predetermined shape, and a work piece pressing plate disposed below the upper die. An elastic body made of a coil spring or rubber interposed between the holding plate and the upper mold, and a fastening member such as a stepped bolt whose base end side is supported by the holding plate, Since the elastic body displaceably holds the fastening member on the free end side through the flanged bush, the elastic body is loaded with an initial pressure as a single body from a free length state, and Combined with the fact that a work holding plate etc. can be assembled,
It becomes possible to deform up to the amount of bending that gives a predetermined repellent reaction force.
【００１１】また、前記鍔付きブッシュが、前記弾性体
の遊端面側を押圧支持するための外鍔と、少なくとも前
記止着部材の大径部を係止するための内鍔とを備えて同
止着部材を前記弾性体内に摺動自在に保持すれば、弾性
体の上端部が前記外鍔の下面と接触し、同弾性体の自由
長に対して所望する初圧力に相対した撓み量を負荷し得
ることとなる。The flanged bush is provided with an outer flange for pressing and supporting the free end surface side of the elastic body and an inner flange for locking at least the large diameter portion of the fastening member. If the fastening member is slidably held in the elastic body, the upper end of the elastic body comes into contact with the lower surface of the outer collar, and the amount of bending relative to the desired initial pressure with respect to the free length of the elastic body is increased. Can be loaded.
【００１２】しかも、同鍔付きブッシュを、例えば、機
械加工で所定の寸法に加工された六角穴付きボルト等の
止着部材を介して上から一律に締め付けるため、複数個
の弾性体が組み込まれる場合でも高さのバラツキは生じ
ない。Moreover, since the bush with flange is tightened uniformly from above by a fastening member such as a hexagon socket head bolt machined to a predetermined size by machining, a plurality of elastic bodies are incorporated. Even if there is no variation in height.
【００１３】更に、前記外鍔が、前記弾性体との接触面
側に３〜１０度の勾配を設ければ、鍔面の勾配の調芯効
果が生じることとなり、弾性体の内周面と鍔付きブッシ
ュの外周面との接触も殆ど無く、弾性体の耐久性が著し
く向上し得ることとなる。Further, if the outer flange is provided with a gradient of 3 to 10 degrees on the contact surface side with the elastic body, the effect of aligning the gradient of the flange surface is produced, and the inner peripheral surface of the elastic body is There is almost no contact with the outer peripheral surface of the collared bush, and the durability of the elastic body can be significantly improved.
【００１４】[0014]
【発明の実施の形態】次に、本発明に係るプレス金型用
の初圧負荷装置の第１実施例を図１乃至図３を参照しな
がら説明する。図１中Ａは、本発明に係るプレス金型用
の初圧負荷装置であり、この初圧負荷装置Ａは、図２に
拡大して示すように、所定形状を有する上金型１と、該
上金型１の下位に配設された被加工物用の押え板２と、
該押え板２と前記上金型１との間に介在された弾性体３
と、上端側が該弾性体３に摺動自在に保持され下端側が
前記押え板２に連結支持された止着部材４とを備えてい
る。BEST MODE FOR CARRYING OUT THE INVENTION Next, a first embodiment of an initial pressure load device for a press die according to the present invention will be described with reference to FIGS. In FIG. 1, A is an initial pressure load device for a press die according to the present invention. This initial pressure load device A has an upper die 1 having a predetermined shape, as shown in an enlarged view in FIG. A pressing plate 2 for a work piece, which is arranged below the upper mold 1,
Elastic body 3 interposed between the pressing plate 2 and the upper mold 1.
And a fastening member 4 whose upper end side is slidably held by the elastic body 3 and whose lower end side is connected and supported by the pressing plate 2.
【００１５】前記弾性体３は、コイルスプリング若しく
はゴム等からなり、解放端側に後述する鍔付きブッシュ
５を介して前記止着部材４を変位自在に支持している。The elastic body 3 is made of a coil spring, rubber or the like, and movably supports the fastening member 4 on the open end side through a flanged bush 5 described later.
【００１６】また、前記止着部材４には、頭部が拡径し
た段付きボルトを使用するものであるが、就中、機械加
工で所定の寸法に加工された六角穴付き段付きボルトを
使用するのが好ましい。A stepped bolt having an enlarged head portion is used as the fastening member 4, and in particular, a hexagonal holed stepped bolt machined to a predetermined size is used. Preference is given to using.
【００１７】換言すれば、該止着部材４は、図２に示す
ように、大径部４ａが後述する鍔付きブッシュ５の内鍔
５ｂに係止されるべく前記押え板２に螺着されているも
のであり、大径部４ａの頂端面に形成された六角穴（図
示せず）に六角レンチを挿着して所定方向に回動するこ
とにより着脱自在に締結螺合できるものである。In other words, as shown in FIG. 2, the fastening member 4 is screwed to the pressing plate 2 so that the large diameter portion 4a is locked to the inner collar 5b of the collared bush 5 described later. The hexagonal wrench is inserted into a hexagonal hole (not shown) formed on the top end surface of the large-diameter portion 4a, and is pivoted in a predetermined direction so that it can be detachably fastened and screwed. .
【００１８】一方、前記鍔付きブッシュ５は、前記弾性
体３の上端面（遊端面）を押圧支持するための外鍔５ａ
と、少なくとも前記止着部材４の大径部４ａを係止する
ための内鍔５ｂとを備えた上端開口の筒体からなり、そ
の下端面に形成された開口５ｃを介して前記止着部材４
を摺動自在に保持している。On the other hand, the collared bush 5 is an outer collar 5a for pressing and supporting the upper end surface (free end surface) of the elastic body 3.
And an inner flange 5b for locking at least the large-diameter portion 4a of the fastening member 4 and having a cylindrical body with an upper end opening, and the fastening member is provided through an opening 5c formed in the lower end surface thereof. Four
Is held slidably.
【００１９】このように構成される本発明のプレス金型
用の初圧負荷装置は、前記上金型１と押え板２との間に
介在された弾性体３の上端に前記鍔付きブッシュ５を挿
着して止着部材４の大径部４ａを摺動自在に係合してい
ることから、常時、弾性体３の上端部が鍔付きブッシュ
５の外鍔５ａの下面と接触し、同弾性体３の自由長に対
して所望する初圧力に相対した撓み量を負荷させること
ができると共に、この状態から外鍔５ａの上面からプレ
ス力が付与され、図２に示すように、弾性体３が圧縮さ
れるため、従来使用されていたスプリングガイドブッシ
ュや逃げ穴及びネジ操作用スペースを全く必要とせず、
簡単かつ確実にして弾性体３に初期圧力を負荷させるこ
とができるのである。In the initial pressure load device for a press die of the present invention thus constructed, the collared bush 5 is provided on the upper end of the elastic body 3 interposed between the upper die 1 and the pressing plate 2. Since the large diameter portion 4a of the fastening member 4 is slidably engaged with, the upper end of the elastic body 3 is always in contact with the lower surface of the outer collar 5a of the collared bush 5, It is possible to apply a bending amount relative to a desired initial pressure with respect to the free length of the elastic body 3, and from this state, a pressing force is applied from the upper surface of the outer collar 5a, and as shown in FIG. Since the body 3 is compressed, the spring guide bush, the escape hole and the space for screw operation that have been used conventionally are not required at all,
The initial pressure can be applied to the elastic body 3 simply and reliably.
【００２０】次に、本発明に係るプレス金型用の初圧負
荷装置の第２実施例を図４乃至図５を参照しながら説明
する。尚、理解を容易にするため、前述した第１実施例
と同一部分は同一符号で示し、構成の異なる処のみを新
たな番号を付して以下に説明する。Next, a second embodiment of the initial pressure load device for a press die according to the present invention will be described with reference to FIGS. 4 to 5. To facilitate understanding, the same parts as those in the first embodiment are denoted by the same reference numerals, and only the parts having different configurations will be described with new numbers.
【００２１】図４は、鍔付きブッシュ５を介して弾性体
６に初圧を負荷した状態の断面図であり、この弾性体６
には、第１実施例で使用するコイルスプリングに代えて
ウレタンスプリングや弾性ゴム等が使用されている。FIG. 4 is a sectional view showing a state in which initial pressure is applied to the elastic body 6 via the bush 5 with a collar.
In place of the coil spring used in the first embodiment, a urethane spring, elastic rubber or the like is used.
【００２２】就中、前記ウレタンスプリングは、耐熱性
に優れたポリエステル系注型ウレタンエラストマーから
なり、繰り返し圧縮特性に優れており、また、高反発弾
性、耐衝撃性、耐候性、耐荷重性に優れていることも相
俟って、プレス金型の弾性体として最適である。In particular, the urethane spring is made of a polyester cast urethane elastomer having excellent heat resistance, has excellent repeated compression characteristics, and has high impact resilience, impact resistance, weather resistance, and load resistance. Combined with its superiority, it is optimal as an elastic body for a press die.
【００２３】而して、この弾性体６は、第１実施例と同
様、前記上金型１と押え板２との間に配設されるもので
あるが、軸心方向に形成された貫通孔６ａを介して前記
鍔付きブッシュ５を同軸状に保持せしめている。The elastic body 6 is arranged between the upper mold 1 and the pressing plate 2 as in the first embodiment, but has a penetrating hole formed in the axial direction. The flanged bush 5 is held coaxially through the hole 6a.
【００２４】換言すれば、この鍔付きブッシュ５は、外
鍔５ａの下面側が前記弾性体６の上端面に接触すべく前
記貫通孔６ａ内に嵌合されるものであり、第１実施例と
同様、前記内鍔５ｂに前記止着部材４の大径部４ａが係
止されている（図４参照）。In other words, the flanged bush 5 is fitted in the through hole 6a so that the lower surface side of the outer flange 5a comes into contact with the upper end surface of the elastic body 6, and is different from that of the first embodiment. Similarly, the large diameter portion 4a of the fastening member 4 is locked to the inner collar 5b (see FIG. 4).
【００２５】従って、このように構成される本発明のプ
レス金型用の初圧負荷装置は、予め、弾性体６の自由長
に対して所望する初圧力に相対した撓み量を負荷させる
ことができると共に、この状態から外鍔５ａの上面から
プレス力が付与され、弾性体６が下方に圧縮されるため
（図５参照）、従来の如き逃げ穴やネジ操作用スペース
を上金型１、押え板２には全く必要とせず、簡単かつ確
実にして弾性体６に初期圧力を負荷させることができる
のである。Therefore, in the initial pressure loading device for a press die of the present invention having such a structure, it is possible to previously apply a bending amount relative to a desired initial pressure to the free length of the elastic body 6. In addition to this, a pressing force is applied from the upper surface of the outer collar 5a from this state, and the elastic body 6 is compressed downward (see FIG. 5). Therefore, the escape hole and the screw operation space as in the conventional case are provided in the upper die 1, The pressing plate 2 is not necessary at all, and the elastic body 6 can be simply and surely loaded with the initial pressure.
【００２６】次に、本発明に係るプレス金型用の初圧負
荷装置の第３実施例を図６乃至図７を参照しながら説明
する。尚、理解を容易にするため、前述した第１実施
例、第２実施例と同一部分は同一符号で示し、構成の異
なる処のみを新たな番号を付して以下に説明する。Next, a third embodiment of the initial pressure load device for a press die according to the present invention will be described with reference to FIGS. 6 to 7. In order to facilitate understanding, the same parts as those of the first and second embodiments described above are designated by the same reference numerals, and only different parts will be described with new numbers.
【００２７】図６は、ゴム状の弾性体６に初圧を負荷し
た状態の断面図であり、この弾性体６の上端には、外鍔
７ａの下面すなわち弾性体６との接触面側に５度の勾配
を設けた鍔付きブッシュ７を介して同弾性体６に初圧を
負荷している。FIG. 6 is a cross-sectional view of a rubber-like elastic body 6 in which initial pressure is applied. The upper end of this elastic body 6 is located on the lower surface of the outer collar 7a, that is, on the contact surface side with the elastic body 6. Initial pressure is applied to the elastic body 6 via a bush 7 with a collar provided with a gradient of 5 degrees.
【００２８】因に、この外鍔７ａの角度付けにより、鍔
面の勾配の調芯効果が生じるため、弾性体６の内周面と
鍔付きブッシュ７の外周面との接触が殆ど無く、弾性体
６の耐久性を著しく向上させ、従来のスプリングガイド
ブッシュを使用した場合に比して約２倍の寿命を得るこ
とができる。Incidentally, since the outer collar 7a is angled, the effect of aligning the gradient of the collar surface is produced, so that there is almost no contact between the inner peripheral surface of the elastic body 6 and the outer peripheral surface of the flanged bush 7, and the elasticity is reduced. The durability of the body 6 is remarkably improved, and the life can be about twice as long as that in the case where the conventional spring guide bush is used.
【００２９】尚、本発明はこれら実施例に限定されるこ
となく、本発明の目的の範囲内で自由に設計変更し得る
ものであり、本発明はそれらの全てを包摂するものであ
る。例えば、本実施例では弾性体３，６を略垂直に立設
させた状態で説明しているが、これに限定されることな
く、傾斜角を利用してプレスの上下運動を水平運動に変
換するカム機構等を用いる場合にあっては、これに応じ
て弾性体３，６も略水平に配置されるものであり、ま
た、その際、弾性体３，６自体も自由長で使用されるこ
とはなく撥條長の約５〜８％の初圧を負荷させるのが良
い。It should be noted that the present invention is not limited to these embodiments, but can be freely changed in design within the scope of the present invention, and the present invention covers all of them. For example, in the present embodiment, the elastic bodies 3 and 6 are described to be erected substantially vertically, but the present invention is not limited to this, and the vertical movement of the press is converted into horizontal movement by utilizing the inclination angle. In the case of using a cam mechanism or the like, the elastic bodies 3 and 6 are also arranged substantially horizontally accordingly, and at that time, the elastic bodies 3 and 6 themselves are also used in a free length. However, it is better to apply an initial pressure of about 5 to 8% of the length of the repellency.
【００３０】また、本明細書にて言及している「プレス
金型」とは、本実施例（図１）で示したカムカット型に
限定されることなく、フランジ型、カムピアス型、ブラ
ンキング型、ドロー型等々、全てのプレス金型を包摂す
るものであり、本発明の初圧負荷装置がこれらの全てに
装着、応用できるものであることは云うまでもない。Further, the "press die" referred to in this specification is not limited to the cam cut die shown in this embodiment (FIG. 1), but may be a flange die, a cam pierce die, a blanking die. Needless to say, the present invention is applicable to all press dies such as a draw type and the like, and the initial pressure load device of the present invention can be mounted and applied to all of them.
【００３１】[0031]
【発明の効果】以上のように構成される本発明に係るプ
レス金型用の初圧負荷装置は、所定形状の上金型と、該
上金型の下位に配設された被加工物用の押え板と、該押
え板と前記上金型との間に介在されたコイルスプリング
若しくはゴム等からなる弾性体と、基端側が前記押え板
に支持された段付きボルト等の止着部材とを備え、か
つ、前記弾性体が、遊端側に鍔付きブッシュを介して前
記止着部材を変位自在に保持したことによって、同弾性
体は、自由長の状態から単体として初期圧力が負荷さ
れ、また、被加工物の押さえ板等が組み付けられること
も相俟って、所定の撥條反力が得られる撓み量まで変形
可能となるため、コイルスプリング又はゴム等の弾性体
に初期圧力を容易に負荷することができるといった優れ
た効果を奏するものである。The initial pressure load device for a press die according to the present invention configured as described above is for an upper die having a predetermined shape, and for a work piece disposed below the upper die. A pressing plate, an elastic body made of a coil spring, rubber or the like interposed between the pressing plate and the upper mold, and a fastening member such as a stepped bolt whose base end side is supported by the pressing plate. And the elastic body holds the fastening member displaceably on the free end side through a collared bush, so that the elastic body is loaded with an initial pressure from a free length state as a single body. In addition, since the pressing plate of the work piece is assembled, it can be deformed to the amount of deflection that gives a predetermined repulsive reaction force, so that the initial pressure is applied to the elastic body such as the coil spring or rubber. It has an excellent effect that it can be easily loaded. That.
【００３２】また、前記鍔付きブッシュが、前記弾性体
の遊端面側を押圧支持するための外鍔と、少なくとも前
記止着部材の大径部を係止するための内鍔とを備えて同
止着部材を前記弾性体内に摺動自在に保持すれば、弾性
体の上端部が前記外鍔の下面と接触し、同弾性体の自由
長に対して所望する初圧力に相対した撓み量を負荷で
き、しかも、同鍔付きブッシュを、例えば、機械加工で
所定の寸法に加工された六角穴付きボルト等の止着部材
を介して上から一律に締め付けるため、複数個の弾性体
が組み込まれる場合でも高さのバラツキは生じない。Further, the flanged bush is provided with an outer flange for pressing and supporting the free end surface side of the elastic body and an inner flange for locking at least the large diameter portion of the fastening member. If the fastening member is slidably held in the elastic body, the upper end of the elastic body comes into contact with the lower surface of the outer collar, and the amount of bending relative to the desired initial pressure with respect to the free length of the elastic body is increased. A plurality of elastic bodies are incorporated so that the bush with collar can be loaded and tightened uniformly from the top via a fastening member such as a hexagon socket head cap screw machined to a predetermined size by machining, for example. Even if there is no variation in height.
【００３３】更に、前記外鍔が、前記弾性体との接触面
側に３〜１０度の勾配を設ければ、鍔面の勾配の調芯効
果が生じるため、弾性体の内周面と鍔付きブッシュの外
周面との接触も殆ど無く、弾性体の耐久性を著しく向上
させ、従来のスプリングガイドブッシュを使用した場合
に比して約２倍の寿命を得ることができた。Furthermore, if the outer flange is provided with a gradient of 3 to 10 degrees on the contact surface side with the elastic body, an effect of aligning the gradient of the flange surface is produced, and therefore the inner peripheral surface of the elastic body and the flange are formed. There was almost no contact with the outer peripheral surface of the attached bush, the durability of the elastic body was remarkably improved, and the life could be about twice as long as when the conventional spring guide bush was used.
【００３４】このように本発明は、特に、スプリング
とスプリングガイドブッシュとの接触が避けられる、
スプリング単体で初圧が負荷できる、スプリング取付
板等の他の部材に逃げ穴の加工が不要となる等、多大な
効果を奏する他、構成が単純であるため大量生産に適
し、価格も低廉なものとして需要者に供給できるなど、
本発明を実施することはその実益的価値が甚だ大であ
る。As described above, according to the present invention, in particular, contact between the spring and the spring guide bush can be avoided.
It has great effects such as the initial pressure can be applied by the spring alone, and the need for processing relief holes in other members such as the spring mounting plate is eliminated, and the simple structure makes it suitable for mass production and is inexpensive. Can be supplied to consumers as things,
Implementing the invention has tremendous practical value.
【図１】本発明に係る初圧負荷装置を組み付けたプレス
金型の断面図である。FIG. 1 is a cross-sectional view of a press die in which an initial pressure load device according to the present invention is assembled.
【図２】本発明に係る初圧負荷装置の第１実施例を示す
要部説明図である。FIG. 2 is a main part explanatory view showing a first embodiment of an initial pressure load device according to the present invention.
【図３】同初圧負荷装置の下限位置を示す要部説明図で
ある。FIG. 3 is an explanatory view of a main part showing a lower limit position of the initial pressure load device.
【図４】本発明に係る初圧負荷装置の第２実施例を示す
要部説明図である。FIG. 4 is an explanatory view of essential parts showing a second embodiment of the initial pressure load device according to the present invention.
【図５】同初圧負荷装置の下限位置を示す要部説明図で
ある。FIG. 5 is an explanatory view of a main part showing a lower limit position of the initial pressure load device.
【図６】本発明に係る初圧負荷装置の第３実施例を示す
要部説明図である。FIG. 6 is an essential part explanatory view showing a third embodiment of the initial pressure load device according to the present invention.
【図７】同初圧負荷装置の下限位置を示す要部説明図で
ある。FIG. 7 is an explanatory view of a main part showing a lower limit position of the initial pressure load device.
【図８】従来の初圧負荷装置を示す要部説明図である。FIG. 8 is an explanatory view of a main part of a conventional initial pressure load device.
【図９】従来の初圧負荷装置を示す要部説明図である。FIG. 9 is an explanatory view of a main part of a conventional initial pressure load device.
【図１０】従来の初圧負荷装置を示す要部説明図であ
る。FIG. 10 is a main part explanatory view showing a conventional initial pressure load device.
１ 上金型 ２ 押え板 ３ 弾性体 ４ 止着部材（段付きボルト） ４ａ 大径部 ５ 鍔付きブッシュ ５ａ 外鍔 ５ｂ 内鍔 ５ｃ 開口 ６ 弾性体 ６ａ 貫通孔 ７ 鍔付きブッシュ ７ａ 外鍔 ７ｂ 内鍔 ８ ストッパーボルト ９ ネジ棒 １０ ダブルナット １１ 逃げ穴 1 Upper die 2 Presser plate 3 Elastic body 4 Fastening member (stepped bolt) 4a Large diameter part 5 Bush with collar 5a Outer collar 5b Inner collar 5c Open 6 Elastic body 6a Through hole 7 Bush with collar 7a Outer collar 7b Inside Tsuba 8 Stopper bolt 9 Screw rod 10 Double nut 11 Relief hole
Claims (3)
設された被加工物用の押え板と、該押え板と前記上金型
との間に介在されたコイルスプリング若しくはゴム等か
らなる弾性体と、基端側が前記押え板に支持された段付
きボルト等の止着部材とを備え、かつ、前記弾性体は、
遊端側に鍔付きブッシュを介して前記止着部材を変位自
在に保持したことを特徴とするプレス金型用の初圧負荷
装置。1. An upper die having a predetermined shape, a holding plate for a workpiece disposed below the upper die, and a coil spring interposed between the holding plate and the upper die. Alternatively, an elastic body made of rubber or the like and a base end side including a fastening member such as a stepped bolt supported by the pressing plate, and the elastic body,
An initial pressure load device for a press die, characterized in that the fastening member is displaceably held on a free end side via a collared bush.
面側を押圧支持するための外鍔と、少なくとも前記止着
部材の大径部を係止するための内鍔とを備えて同止着部
材を前記弾性体内に摺動自在に保持してなることを特徴
とする請求項１に記載のプレス金型用の初圧負荷装置。2. The flanged bush is provided with an outer collar for pressing and supporting the free end surface side of the elastic body, and an inner collar for locking at least the large diameter portion of the fastening member. The initial pressure load device for a press die according to claim 1, wherein a fastening member is slidably held in the elastic body.
〜１０度の勾配を設けてなることを特徴とする請求項２
に記載のプレス金型用の初圧負荷装置。3. The outer collar is provided on the contact surface side with the elastic body.
3. A gradient of -10 degrees is provided.
The initial pressure load device for the press die described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29404695A JP3176271B2 (en) | 1995-11-13 | 1995-11-13 | Initial pressure loading device for press dies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29404695A JP3176271B2 (en) | 1995-11-13 | 1995-11-13 | Initial pressure loading device for press dies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09136123A true JPH09136123A (en) | 1997-05-27 |
| JP3176271B2 JP3176271B2 (en) | 2001-06-11 |
Family
ID=17802582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29404695A Expired - Fee Related JP3176271B2 (en) | 1995-11-13 | 1995-11-13 | Initial pressure loading device for press dies |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3176271B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003225799A (en) * | 2002-02-04 | 2003-08-12 | Seiko Epson Corp | Press machine test method, test system, test apparatus used therefor, test program, and test program recording medium |
| CN107606012A (en) * | 2017-10-26 | 2018-01-19 | 南京溧水丽华弹簧厂 | A kind of new type of compression spring |
-
1995
- 1995-11-13 JP JP29404695A patent/JP3176271B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003225799A (en) * | 2002-02-04 | 2003-08-12 | Seiko Epson Corp | Press machine test method, test system, test apparatus used therefor, test program, and test program recording medium |
| CN107606012A (en) * | 2017-10-26 | 2018-01-19 | 南京溧水丽华弹簧厂 | A kind of new type of compression spring |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3176271B2 (en) | 2001-06-11 |
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