JPS647040Y2 - - Google Patents
Info
- Publication number
- JPS647040Y2 JPS647040Y2 JP1981071566U JP7156681U JPS647040Y2 JP S647040 Y2 JPS647040 Y2 JP S647040Y2 JP 1981071566 U JP1981071566 U JP 1981071566U JP 7156681 U JP7156681 U JP 7156681U JP S647040 Y2 JPS647040 Y2 JP S647040Y2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- load
- hole
- press
- tie rod
- 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
- 239000012530 fluid Substances 0.000 claims description 5
- 239000004519 grease Substances 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Control Of Presses (AREA)
Description
【考案の詳細な説明】
この考案はプレスの負荷時にプレス荷重を表示
するプレス荷重計装置にかんする。[Detailed description of the invention] This invention relates to a press load meter device that displays the press load when the press is loaded.
従来、プレス荷重計装置としてはアツプライト
の局部変位をレバーにより拡大し、ダイヤルゲー
ジによつて表示する荷重計や、ダイヤルゲージに
かえて差動トランスを使用したもの等がよく知ら
れている。しかし、これ等の荷重計は局部変位を
拡大して検出するため精度が悪い。又、フレーム
の全変位量により荷重を検知する装置として、タ
イロツドに貫通した穴全長に亘つてリボンと称す
る平板状の作動棒を挿入し、作動棒のひずみによ
つて荷重を検知する装置もある。 Conventionally, well-known press load meter devices include a load meter in which the local displacement of an upright is magnified by a lever and displayed by a dial gauge, and a load meter in which a differential transformer is used in place of the dial gauge. However, these load meters have poor accuracy because they magnify and detect local displacement. In addition, as a device that detects the load based on the total displacement of the frame, there is also a device that inserts a flat actuating rod called a ribbon over the entire length of a hole penetrated through the tie rod, and detects the load based on the strain of the actuating rod. .
しかし、この装置では全変位量より荷重を検出
でき、検出精度の向上を図れるが、一方プレス荷
重は衝撃的に、瞬時にかかるので、荷重がかかる
と同時に作動棒が振動を起すという現象を生じ
た。作動棒が振動すると表示値がバラツクことに
なるわけで、これを避けるため作動棒を大きくす
るにはタイロツドの寸法上の制約を受けるという
問題があり、荷重計装置として今一歩確実なもの
ではなかつた。 However, with this device, the load can be detected based on the total amount of displacement, improving detection accuracy, but on the other hand, since the press load is applied impulsively and instantaneously, it causes the phenomenon that the operating rod vibrates as soon as the load is applied. Ta. If the actuating rod vibrates, the displayed value will vary, and if the actuating rod is made larger to avoid this, there is a problem with the dimensional restrictions of the tie rod, and it is still not reliable as a load cell device. Ta.
本考案はこの点に着目してなされたものであつ
て、貫通穴に粘性流動物を充填して作動棒の振動
を抑えるようになし、確実な検出精度を得る荷重
計装置を得たものである。以下図示した実施例に
沿つて説明する。 The present invention was developed with this in mind, and the through hole is filled with a viscous fluid to suppress the vibration of the actuating rod, resulting in a load cell device that achieves reliable detection accuracy. be. The following will explain the embodiments shown in the drawings.
図において１はベツド、２はアツプライト、３
はクラウンであつて、これ等を貫通する４本のタ
イロツド４と夫々のナツト５によつて全体を１体
化させプレスフレームを構成している。 In the diagram, 1 is bed, 2 is upright, and 3 is upright.
is a crown, which is integrated as a whole by four tie rods 4 passing through these and respective nuts 5 to form a press frame.
６はアツプライト２に沿つて上下動するスライ
ドであつて、偏心軸７に取付けられたコンロツド
８にピン着９され、偏心軸７の回動により上下動
する。 A slide 6 moves up and down along the upright 2, and is pinned 9 to a connecting rod 8 attached to an eccentric shaft 7, and moves up and down as the eccentric shaft 7 rotates.
１０はタイロツド４の軸方向中心部に穿設され
た貫通穴であつて、その上端にはパツキン２１が
密閉支持されており、上端を該パツキン２１によ
り、また下端を後述する下クランパ１２内のグリ
ース１８により密閉されている。１１は貫通穴１
０内に張設された作動棒であつて、その下端はナ
ツト５に取付けられた下クランパ１２に支持さ
れ、上端は前記パツキン２１を貫通してこれに密
閉支持され、かつ、後述する継手１３に支持され
ている。１３，１３′は継手であり、１４は該継
手を取付ける上クランパであつて、ナツト５に取
付けられている。 Reference numeral 10 denotes a through hole bored in the center of the tie rod 4 in the axial direction, and a gasket 21 is hermetically supported at the upper end of the through hole. It is sealed with grease 18. 11 is through hole 1
0, its lower end is supported by a lower clamper 12 attached to the nut 5, and its upper end passes through the packing 21 and is hermetically supported thereto, and is connected to a joint 13 to be described later. is supported by 13 and 13' are joints, and 14 is an upper clamper for attaching the joints, which is attached to the nut 5.
１５はロードセルであり、該ロードセル１５は
保持金具１６，１６′に保持されており、保持金
具１６，１６′は前記継手１３，１３′に連着され
ている。なお、１７は上クランパ１４に取付ける
継手１３′の取付調整ナツトであつて、作動棒１
１に所定の張力を与えられるようになつている。 15 is a load cell, and the load cell 15 is held by holding fittings 16, 16', which are connected to the joints 13, 13'. In addition, 17 is a mounting adjustment nut of the joint 13' that is mounted on the upper clamper 14, and is a nut that is attached to the operating rod 1.
1 can be applied with a predetermined tension.
次に、１８は貫通穴１０内に充填されたグリー
スである。１９は４本のタイロツド４に装備され
たロードセル１５のプレス負荷時発生するひずみ
出力を入力とする加算演算器、２０はプレス荷重
を表示する表示器である。 Next, 18 is grease filled in the through hole 10. Reference numeral 19 designates an addition calculator which receives as input the strain output generated during press load of the load cells 15 installed on the four tie rods 4, and 20 represents a display device that displays the press load.
本考案は上記の通り構成されており、次にその
作用効果について述べる。プレス作業においてベ
ツド１上面と、スライド６の間に負荷がかかると
夫々のタイロツド４にも、その負荷に比例したひ
ずみが生じることとなる。 The present invention is constructed as described above, and its effects will be described next. When a load is applied between the top surface of the bed 1 and the slide 6 during the press operation, each tie rod 4 will also be strained in proportion to the load.
従つて夫々のタイロツド４の貫通穴１０に設け
られた作動棒１１にもひずみが生じ、該作動棒１
１のひずみをロードセル１５によつて検出し、こ
れを加算演算器１９に入力して加算演算し、プレ
スにかかる全荷重を表示器２０に表示することと
なる。 Therefore, strain also occurs in the actuating rod 11 provided in the through hole 10 of each tie rod 4, and the actuating rod 1
1 strain is detected by the load cell 15, this is input to the addition calculator 19 for addition calculation, and the total load applied to the press is displayed on the display 20.
この時、作動棒１１の両端はタイロツド４の両
端で支持されて貫通穴１０内に張設されているか
ら、作動棒１１は振動し難くなつている。また、
前記貫通穴１０の両端はパツキン２１と下クラン
パ１２内のグリース１８とにより密閉されてお
り、該貫通穴１０にはグリース１８が充填されて
いるので、プレス負荷時の衝撃により発生する振
動はグリース１８によつて吸収され、作動棒１１
はこの影響を受けることなく、安定したひずみを
ロードセル１５に伝え正確なプレス荷重が検出さ
れる。 At this time, since both ends of the actuating rod 11 are supported by both ends of the tie rod 4 and stretched in the through hole 10, the actuating rod 11 is less likely to vibrate. Also,
Both ends of the through hole 10 are sealed by a packing 21 and grease 18 in the lower clamper 12, and since the through hole 10 is filled with the grease 18, the vibrations generated by the impact during press load are absorbed by the grease. 18 and actuating rod 11
is not affected by this, and a stable strain is transmitted to the load cell 15, so that an accurate press load can be detected.
尚、上記の貫通穴に充填する充填剤はグリース
に限定されず、オイルなど他の粘性流動物を用い
ても同効である。 Note that the filler to be filled into the above-mentioned through holes is not limited to grease, and other viscous fluids such as oil may be used with the same effect.
本考案は以上詳述したとおり、タイロツド全長
に亘るひずみの検出と、充填剤による作動棒の振
動防止とによつて、安定した正確なプレス荷重の
表示をなす荷重計をえたものであつて、プレス作
業を安全に、かつ、能率的に操業しうる効果は大
である。 As detailed above, the present invention provides a load meter that displays a stable and accurate press load by detecting strain over the entire length of the tie rod and preventing vibration of the operating rod using a filler. This has a great effect in enabling press operations to be carried out safely and efficiently.
また、作動棒とタイロツドとの間に粘性流動物
を充填しているので、特に熱間鍛造の場合等は、
タイロツドの温度が上昇しても粘性流動物を介し
て作動棒に伝わり、常にタイロツドと作動棒とが
同一の温度となる。従つて、熱膨張によるタイロ
ツドの伸びが荷重検出に誤差を与えようとする
が、作動棒もタイロツドと同一に伸びるので、前
記タイロツドの熱膨張による伸びが打ち消されて
誤差を解消し、より正確なプレスの荷重検出を可
能とすることができる。 In addition, since a viscous fluid is filled between the operating rod and the tie rod, especially in the case of hot forging, etc.
Even if the temperature of the tie rod increases, it is transmitted to the actuating rod through the viscous fluid, so that the tie rod and the actuating rod are always at the same temperature. Therefore, the elongation of the tie rod due to thermal expansion tends to give an error in load detection, but since the actuating rod also elongates at the same time as the tie rod, the elongation due to the thermal expansion of the tie rod is canceled out, eliminating the error and making it more accurate. It is possible to detect the load of the press.
第１図は本考案実施例のプレス概略正面図、第
２図は同平面図、第３図は同要部正断面図、第４
図はロードセル取付部の詳細図、第５図はロード
セル、加算演算器、表示器の回路図である。
１……ベツド、２……アツプライト、３……ク
ラウン、４……タイロツド、１０……貫通穴、１
１……作動棒、１５……ロードセル、１８……グ
リース。
Fig. 1 is a schematic front view of a press according to an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a front sectional view of the same main part, and Fig. 4 is a front view of the press according to an embodiment of the present invention.
The figure is a detailed view of the load cell mounting part, and FIG. 5 is a circuit diagram of the load cell, addition calculator, and display. 1...Bed, 2...Upright, 3...Crown, 4...Tie rod, 10...Through hole, 1
1... Operating rod, 15... Load cell, 18... Grease.
Claims (1)
ドの締付けによつて一体に構成したプレスフレー
ムにおいて、前記タイロツドに軸方向の貫通穴を
設け、該貫通穴に作動棒を貫通させ、該作動棒の
一端は、タイロツドの一端に密閉支持させ、作動
棒の他端は、タイロツドの他端に密閉支持された
パツキンに貫通させてタイロツドの外側に支持さ
れた検出器に連結し、作動棒を前記パツキンに対
して軸方向に摺動可能に密閉支持させると共に、
前記密閉された貫通穴内に粘性流動物を充填した
ことを特徴とするプレスの荷重計装置。 In a press frame in which a bed, an upright, and a crown are integrally constructed by tightening tie rods, an axial through hole is provided in the tie rod, an operating rod is passed through the through hole, and one end of the operating rod is connected to the tie rod. The actuating rod is hermetically supported at one end, and the other end of the actuating rod is passed through a gasket hermetically supported at the other end of the tie rod and connected to a detector supported on the outside of the tie rod. In addition to being slidably supported in a closed manner,
A load meter device for a press, characterized in that the sealed through hole is filled with a viscous fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981071566U JPS647040Y2 (en) | 1981-05-18 | 1981-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981071566U JPS647040Y2 (en) | 1981-05-18 | 1981-05-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57183533U JPS57183533U (en) | 1982-11-20 |
| JPS647040Y2 true JPS647040Y2 (en) | 1989-02-23 |
Family
ID=29867357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981071566U Expired JPS647040Y2 (en) | 1981-05-18 | 1981-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647040Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422975Y2 (en) * | 1987-09-17 | 1992-05-27 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5434295U (en) * | 1977-08-11 | 1979-03-06 |
-
1981
- 1981-05-18 JP JP1981071566U patent/JPS647040Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5434295U (en) * | 1977-08-11 | 1979-03-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57183533U (en) | 1982-11-20 |
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