JPS6119866Y2 - - Google Patents
Info
- Publication number
- JPS6119866Y2 JPS6119866Y2 JP6136581U JP6136581U JPS6119866Y2 JP S6119866 Y2 JPS6119866 Y2 JP S6119866Y2 JP 6136581 U JP6136581 U JP 6136581U JP 6136581 U JP6136581 U JP 6136581U JP S6119866 Y2 JPS6119866 Y2 JP S6119866Y2
- Authority
- JP
- Japan
- Prior art keywords
- pad
- piston rod
- plate holding
- plate
- sheared
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 16
- 238000010008 shearing Methods 0.000 claims description 11
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Landscapes
- Accessories And Tools For Shearing Machines (AREA)
Description
【考案の詳細な説明】
本考案は剪断加工すべき板材を押圧固定するこ
とにより、剪断時における板材の移動を防止する
ようにした剪断機の板押え装置に関するものであ
る。従来、剪断機の油圧式板押え装置において
は、ピストンの下部にウレタン製等の当て物を設
け、シリンダ内に圧油を送り込むことによつてピ
ストンを作動させて板材を押圧固定するものであ
るが、一般に板押え装置1個のピストンによる板
押え力は200Kg以上もあるため、板押え時に非常
に大きい音が発生するという欠点があつた。これ
に対し例えばU.S.P.3345897号公報には、ワーク
の表面を損傷せず騒音の発生をも解消した剪断機
などの板押え手段が開示されている。その内の第
1実施例は、左右の油圧モータの間に設けたステ
イフナプレート(本願前板に相当)の下端面に、
可撓性物質の中空チユーブが設けてあつて、これ
にエアーを充満したり放出たりして外径寸法を変
えることでワークをテーブル上に固定・解放する
ものである。[Detailed Description of the Invention] The present invention relates to a plate holding device for a shearing machine that prevents movement of the plate material during shearing by pressing and fixing the plate material to be sheared. Conventionally, in a hydraulic plate holding device for a shearing machine, a pad made of urethane or the like is provided at the bottom of the piston, and pressurized oil is sent into the cylinder to operate the piston and press and fix the plate material. Generally, the force of pressing the plate by one piston of the plate holding device is 200 kg or more, so there was a drawback that very loud noise was generated when holding the plate. On the other hand, for example, US Pat. No. 3,345,897 discloses a plate holding means such as a shearing machine that does not damage the surface of the workpiece and eliminates the generation of noise. In the first embodiment, on the lower end surface of the stiffener plate (corresponding to the front plate of the present application) provided between the left and right hydraulic motors,
A hollow tube made of a flexible material is provided, and a workpiece is fixed on or released from a table by filling or releasing air into the tube and changing the outside diameter.
第2実施例はラムの前方のブラケツトを突出さ
せて、これに縦棒を弾機によつて下向きに付勢し
て設け、下端に断面が楕円形の可撓性物質の中空
チユーブにエアーを充満した設けた例が示してあ
る。 In the second embodiment, a bracket at the front of the ram is protruded, a vertical bar is attached to the bracket and urged downward by a bullet, and air is supplied to a hollow tube of a flexible material having an oval cross section at the lower end. An example of a full installation is shown.
上記第1,第2の実施例は油圧シリンを使用し
てワークをテーブルに押圧固定する手段を備えて
おらず、エアーを充満するか、密封したチユーブ
を介してワークをテーブル面に押圧固定している
ものである。 The first and second embodiments described above are not equipped with a means for pressing and fixing the workpiece to the table using a hydraulic cylinder, but instead are filled with air or using a sealed tube to press and fix the workpiece to the table surface. It is something that
したがつて、ワークの押圧固定力が不足して厚
板の剪断には向かない不都合があつたのである。 Therefore, there was an inconvenience that the force to press and fix the workpiece was insufficient, making it unsuitable for shearing thick plates.
本考案は板押え時においてピストンの下降によ
つて、当て物が板材に衝突した場合の騒音を減少
させることを目的とし、併せて厚板の剪断にも耐
える強力な押圧作用を持つた板押え装置を提供す
るものである。 The purpose of this invention is to reduce the noise caused by the collision of the guard against the plate due to the downward movement of the piston during plate holding, and also to have a plate holding device that has a strong pressing action that can withstand shearing of the thick plate. It provides:
以下図面に基いて本考案の1実施例につき詳細
な説明を行なう。第1図においてテーブル1の上
部に設けた下刃台3には図示されていないが下刃
が取付けてある。下刃台3の上方部に設けた前板
5の後方部には適宜の機構により上下動する上刃
(図示省略)が取り付けてあるとともに、その前
板5の下底部には剪断時被剪断板材を下刃台3に
押え付ける油圧式の板押え装置7が複数個並設さ
れている。 Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. In FIG. 1, a lower blade (not shown) is attached to a lower blade stand 3 provided on the upper part of the table 1. An upper blade (not shown) that moves up and down by an appropriate mechanism is attached to the rear part of the front plate 5 provided at the upper part of the lower blade stand 3, and at the bottom of the front plate 5 there is a blade to be sheared during shearing. A plurality of hydraulic plate holding devices 7 that press the plate material against the lower blade stand 3 are arranged in parallel.
第2図は本考案の1実施例で示すものである。
前板5の下底部より垂設したシリンダ9,9aの
内部は前板5に穿設された油路13と連通してい
る。ピストン15はシリンダ9の内周面17との
間に圧油の1部を通過し得る適宜の間隙19を有
するように構成され、前記ピストン15の上端部
とシリンダ9aの内周面17の下底部との間には
スプリング21が挾圧して設けてある。シリンダ
9aの内周面17の下底部よりシリンダ9aを貫
通して外部と連通する貫通孔23の下端部にはオ
イルシール25が嵌装してあり、前記貫通孔23
にはピストンロツド27が摺動自在に挿入して設
けられ、その上部は螺杆29を介してピストン1
5と連結され、下部には一体的に構成されたブロ
ツク部31の下向き内面が凹面状に形成されると
ともに、外周端に下向き立ち上り部分を備え、こ
の下向き立ち上り部に被剪断材35を下刃台3上
に押圧固定する下面が下向き凸面状の当て物37
が嵌装され、該当て物37とブロツク31との間
の空気がブロツク31の天井を貫いて外気に連通
するエアー穴33がピストンロツド27の周囲に
設けてあり、更に前記当て物37の下面に環状の
V溝を設けて、当て物37が被剪断材35をテー
ブル1上に固定するに当たつて中央部が凹み易く
工夫してある。 FIG. 2 shows one embodiment of the present invention.
The insides of the cylinders 9 and 9a, which are vertically disposed from the lower bottom of the front plate 5, communicate with an oil passage 13 bored in the front plate 5. The piston 15 is configured to have an appropriate gap 19 between it and the inner circumferential surface 17 of the cylinder 9, through which a portion of the pressure oil can pass, and between the upper end of the piston 15 and the lower inner circumferential surface 17 of the cylinder 9a. A spring 21 is provided between the bottom and the bottom. An oil seal 25 is fitted in the lower end of a through hole 23 that passes through the cylinder 9a from the lower bottom of the inner circumferential surface 17 of the cylinder 9a and communicates with the outside.
A piston rod 27 is slidably inserted into the piston rod 27, and the upper part thereof is connected to the piston 1 through a screw rod 29.
The block part 31 is connected to the lower part of the block part 31 and has a concave inner surface facing downward, and has a downwardly rising part at the outer circumferential end, and the material to be sheared 35 is inserted into the downwardly rising part by the lower blade. A pad 37 whose lower surface is convex downward and is pressed and fixed on the table 3
An air hole 33 is provided around the piston rod 27 through which the air between the object 37 and the block 31 passes through the ceiling of the block 31 and communicates with the outside air. A V-groove is provided so that the center part is easily concave when the pad 37 fixes the material 35 to be sheared on the table 1.
上記の如く構成した板押え装置7においては、
油路13よりシリンダ9に流入する圧油がピスト
ン15を押圧してピストンロツド27を介して当
て物37を下降させて下刃台3上の被剪断材35
を押圧するのであるが、下面を凸面状に形成され
ている当て物37は押圧に際して中央部から先に
被剪断材35に接触して徐々に中央部が凹み第2
図の下に二点鎖線で示したように当て物37の中
央上部とブロツク部31の中央下部との間に空気
部を残した当て物37の下面に設けたV溝から外
周にわたる上面部分で前記両者が密着するに至
る。 In the plate holding device 7 configured as described above,
Pressure oil flowing into the cylinder 9 from the oil passage 13 presses the piston 15 and lowers the cover 37 via the piston rod 27, thereby removing the sheared material 35 on the lower blade stand 3.
When pressing, the pad 37, whose lower surface is formed in a convex shape, contacts the material to be sheared 35 first from the center part, and the center part gradually becomes depressed and becomes the second part.
As shown by the two-dot chain line at the bottom of the figure, the upper surface portion extending from the V-groove to the outer periphery provided on the lower surface of the pad 37 leaving an air space between the upper center of the pad 37 and the lower center of the block portion 31 come into close contact.
したがつて従来のような大きな音の発生を防止
できるとともに前記したV溝から外周にわたる下
面部分の当て物37で被剪断材35を強力にテー
ブル1に押圧するものである。なお当て物37は
ウレタンまたはゴム等で作られており、ある程度
変形することができるものであり、ピストンロツ
ド27と当て物37の間に閉じ込められた空気は
エアー孔33を通して外部に放出される。次に圧
油の供給が停止されると、ピストン15がスプリ
ング21の蓄勢力により上昇復帰して押圧は解除
され、また、当て物37は弾性力により元の状態
とに復元する。 Therefore, it is possible to prevent the generation of loud noises as in the conventional case, and the material to be sheared 35 is strongly pressed against the table 1 by the pad 37 on the lower surface extending from the V-groove to the outer periphery. The pad 37 is made of urethane or rubber, and can be deformed to some extent, and the air trapped between the piston rod 27 and the pad 37 is released to the outside through the air hole 33. Next, when the supply of pressure oil is stopped, the piston 15 returns to its upward position due to the stored force of the spring 21, the pressure is released, and the pad 37 is restored to its original state due to its elastic force.
本考案は実用新案登録請求の範囲に記載したよ
うに、剪断すべき板材を押圧固定する板押え装置
のピストンロツドの下部に凹面状の嵌合部を設
け、この嵌合部に下面を凸面状に形成したゴム等
よりなる当て物を嵌合して設けた剪断機の油圧式
板押え装置であるから、当て物の中央部から先に
被剪断材に接触して徐々に当て物の下面のテーブ
ル上面に押圧するようになるため、従来のように
板押え時に非常に大きい音を発生することがな
く、当て物の下面外周部は空気部を介在せずに被
剪断材をテーブル上面に押圧するから強力な固定
ができるのである。 As stated in the claims of the utility model registration, the present invention provides a concave fitting part at the lower part of the piston rod of the plate holding device that presses and fixes the plate material to be sheared, and the lower surface of the fitting part is provided with a convex shape. Since this is a hydraulic plate holding device for a shearing machine that is fitted with a pad made of formed rubber, etc., the center of the pad comes into contact with the material to be sheared first and is gradually pressed against the table top surface on the bottom of the pad. This eliminates the generation of extremely loud noises when holding the board down, unlike conventional methods, and the outer periphery of the lower surface of the support presses the material to be sheared against the table top surface without intervening air space, resulting in a strong fixation. This is possible.
なお、この考案は前述の実施例に限定されるも
のではなく、前述の実施例以外の態様でもこの考
案を実施しうるものである。 It should be noted that this invention is not limited to the above-mentioned embodiments, and can be implemented in modes other than the above-mentioned embodiments.
図面は本考案に係わる実施例を示すもので、第
1図は剪断機の正面図、第2図は本考案の1実施
例を示す板押え装置の縦断面図である。
図面の主要な部分を表わす符号の説明、7……
油圧式板押え装置、9……シリンダ、15……ピ
ストン、27……ピストンロツド、37……当て
物。
The drawings show an embodiment of the present invention, and FIG. 1 is a front view of a shearing machine, and FIG. 2 is a longitudinal cross-sectional view of a plate holding device showing one embodiment of the present invention. Explanation of symbols representing main parts of the drawing, 7...
Hydraulic plate holding device, 9... cylinder, 15... piston, 27... piston rod, 37... pad.
Claims (1)
シリンダを介してテーブルに向つて垂下する油圧
式板押え装置を一列に設け、前記油圧シリンの各
ピストンロツドの下端に下向き内面を凹面状に形
成するとともに下向き立ち上り部分を備えたブロ
ツク部を設け、該下向き立ち上り部分に被剪断材
をテーブルとの間に押圧固定する下面を凸面状に
形成したゴム質物質の当て物を嵌着して設け、上
記ブロツク部の天井を貫いて当て物とブロツク部
の凹面部との間の気室をピストンロツド周囲の外
気へ連通するブリージング用のエアー穴を設け、
更に前記当て物の下面に環状のV溝を設けたこと
を特徴とする剪断機の油圧式板押え装置。 Hydraulic plate holding devices are installed in a row from the front plate of the shearing machine to the table via a plurality of parallel hydraulic cylinders of the same size and diameter, and the lower end of each piston rod of the hydraulic cylinders is provided with a concave inner surface facing downward. A block portion having a downwardly rising portion is provided, and a rubber material pad having a convex lower surface is fitted onto the downwardly rising portion to press and fix the material to be sheared between the table and the block portion. , an air hole for breathing is provided through the ceiling of the block section to communicate the air chamber between the pad and the concave surface of the block section to the outside air around the piston rod;
A hydraulic plate holding device for a shearing machine, further comprising an annular V-groove provided on the lower surface of the pad.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6136581U JPS6119866Y2 (en) | 1981-04-30 | 1981-04-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6136581U JPS6119866Y2 (en) | 1981-04-30 | 1981-04-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57173924U JPS57173924U (en) | 1982-11-02 |
JPS6119866Y2 true JPS6119866Y2 (en) | 1986-06-14 |
Family
ID=29857612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6136581U Expired JPS6119866Y2 (en) | 1981-04-30 | 1981-04-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6119866Y2 (en) |
-
1981
- 1981-04-30 JP JP6136581U patent/JPS6119866Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS57173924U (en) | 1982-11-02 |
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