JPS6286919U - - Google Patents
Info
- Publication number
- JPS6286919U JPS6286919U JP17973985U JP17973985U JPS6286919U JP S6286919 U JPS6286919 U JP S6286919U JP 17973985 U JP17973985 U JP 17973985U JP 17973985 U JP17973985 U JP 17973985U JP S6286919 U JPS6286919 U JP S6286919U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- dictation
- flow rate
- detection means
- speed
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 8
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
Landscapes
- Presses And Accessory Devices Thereof (AREA)
- Control Of Presses (AREA)
Description
第１図〜第５図はこの考案の実施例を示すもの
で、第１図は油圧式ダイクツシヨン装置の圧力制
御用油圧回路、第２図はダイクツシヨン圧力調整
装置の電気的な構成を示すブロツク図、第３図は
リリーフ弁の圧力オーバライト特性を示すグラフ
、第４図はＲＡＭの内容を示す図、第５図はＣＰ
Ｕによるダイクツシヨン圧力調整処理手順を示す
フロー・チヤートである。
１…ダイクツシヨン・パツド、２，３…ダイク
ツシヨン・シリンダ、９…リリーフ弁、１０…ソ
レノイド操作圧力比例弁、１１…ソレノイド、１
４…アブソリユート・エンコーダ、２０…ＣＰＵ
、２１…ＲＯＭ、２２…ＲＡＭ、２３…クロツク
・パルス設定器、２６…デジタル・スイツチ。
Figures 1 to 5 show an embodiment of this invention, with Figure 1 being a hydraulic circuit for pressure control of a hydraulic dictation device, and Figure 2 being a block diagram showing the electrical configuration of the dictation pressure regulating device. , Figure 3 is a graph showing the pressure overwrite characteristics of the relief valve, Figure 4 is a diagram showing the contents of RAM, and Figure 5 is a graph showing the pressure overwrite characteristics of the relief valve.
It is a flow chart showing the procedure of dictation pressure adjustment process by U. 1... Diction pad, 2, 3... Diction cylinder, 9... Relief valve, 10... Solenoid operating pressure proportional valve, 11... Solenoid, 1
4...Absolute encoder, 20...CPU
, 21...ROM, 22...RAM, 23...clock pulse setter, 26...digital switch.
Claims (1)
ダイクツシヨン・シリンダに、出力ポートがタン
クにそれぞれ接続され、制御電流によつてリリー
フ圧が制御される圧力制御装置、 圧力制御装置の通過流量があらかじめ定められ
た基準流量である場合におけるリリーフ圧に対す
る制御電流のデータが記憶される記憶手段、 所望のダイクツシヨン・シリンダ圧が設定され
る圧力設定装置、 ダイクツシヨンの下降速度を検出する速度検出
手段、 上記記憶手段に記憶されているデータに基づい
て求められかつ圧力制御装置の通過流量が基準流
量であるとした場合にリリーフ圧を設定圧力にす
るための制御電流、速度検出手段によつて検出さ
れたダイクツシヨンの下降速度、あらかじめ求め
られかつ圧力制御装置の通過流量が基準流量であ
る場合におけるダイクツシヨンの基準下降速度お
よびあらかじめ求められた補正係数にもとづいて
、圧力制御装置の通過流量が速度検出手段によつ
て検出された速度に対応する流量である場合にリ
リーフ圧を設定圧力にするための制御電流を算出
する手段、ならびに 算出された制御電流を圧力制御装置に出力する
手段、 を備えている油圧式ダイクツシヨン装置の圧力調
整装置。 (2) 速度検出手段がダイクツシヨンの位置を検
出する位置検出手段および位置検出手段によるダ
イクツシヨンの位置の検出にもとづいて一定時間
ごとのダイクツシヨンの下降量を算出する算出手
段からなる実用新案登録請求の範囲第(1)項記載
の油圧式ダイクツシヨン装置の圧力調整装置。 (3) ダイクツシヨンの位置検出手段がエンコー
ダである実用新案登録請求の範囲第(2)項記載の
油圧式ダイクツシヨン装置の圧力調整装置。[Claims for Utility Model Registration] (1) A pressure control device that has a relief mechanism, the input port is connected to the duct cylinder, the output port is connected to the tank, and the relief pressure is controlled by a control current. , a storage means for storing control current data with respect to relief pressure when the flow rate passing through the pressure control device is a predetermined reference flow rate; a pressure setting device for setting a desired duct cylinder pressure; and a descending speed of the dictation. a speed detection means for detecting, a control current and a speed determined based on the data stored in the storage means and for making the relief pressure a set pressure when the flow rate passing through the pressure control device is a reference flow rate; The pressure control device is determined based on the descending speed of the dictation detected by the detection means, the reference descending speed of the dictation when the flow rate passing through the pressure control device is determined in advance and the reference flow rate, and the predetermined correction coefficient. Means for calculating a control current for setting the relief pressure to a set pressure when the passing flow rate is a flow rate corresponding to the speed detected by the speed detection means, and outputting the calculated control current to the pressure control device. A pressure regulating device for a hydraulic dictation device, comprising means. (2) A claim for utility model registration consisting of a position detection means in which the speed detection means detects the position of the dictation, and a calculation means for calculating the amount of descent of the dictation at regular intervals based on the detection of the position of the dictation by the position detection means. A pressure adjustment device for a hydraulic dictation device according to paragraph (1). (3) The pressure regulating device for a hydraulic dictation device according to claim (2), wherein the dictation position detection means is an encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17973985U JPH06240Y2 (en) | 1985-11-20 | 1985-11-20 | Pressure adjustment device for hydraulic die cushion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17973985U JPH06240Y2 (en) | 1985-11-20 | 1985-11-20 | Pressure adjustment device for hydraulic die cushion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6286919U true JPS6286919U (en) | 1987-06-03 |
| JPH06240Y2 JPH06240Y2 (en) | 1994-01-05 |
Family
ID=31123064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17973985U Expired - Lifetime JPH06240Y2 (en) | 1985-11-20 | 1985-11-20 | Pressure adjustment device for hydraulic die cushion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06240Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012091059A1 (en) * | 2010-12-28 | 2012-07-05 | キャタピラー エス エー アール エル | Fluid pressure circuit control apparatus and working machine |
-
1985
- 1985-11-20 JP JP17973985U patent/JPH06240Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012091059A1 (en) * | 2010-12-28 | 2012-07-05 | キャタピラー エス エー アール エル | Fluid pressure circuit control apparatus and working machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06240Y2 (en) | 1994-01-05 |
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