JPH045A - Deceleration controlling method for piston rod in pneumatic cylinder - Google Patents
Deceleration controlling method for piston rod in pneumatic cylinderInfo
- Publication number
- JPH045A JPH045A JP10087890A JP10087890A JPH045A JP H045 A JPH045 A JP H045A JP 10087890 A JP10087890 A JP 10087890A JP 10087890 A JP10087890 A JP 10087890A JP H045 A JPH045 A JP H045A
- Authority
- JP
- Japan
- Prior art keywords
- air
- deceleration
- piston rod
- stroke
- pressure chamber
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000035939 shock Effects 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は空気シリンダにおいて、ピストンロッドの速
度を高速行程から低速行程に移行させる際の減速行程に
おけるピストンロッドの減速制御方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for controlling the deceleration of a piston rod during a deceleration stroke when the speed of the piston rod is transferred from a high speed stroke to a low speed stroke in an air cylinder.
を従来技術］
従来空気シリンダのピストンロッドの速度を高速から低
速に移行させる際の減速を、空気シリンダの排気側をリ
リーフ弁等を使用して一定圧力に保持して行なっている
が、この方法は空気回路では一般に困難である。[Prior art] Conventionally, the speed of the piston rod of an air cylinder is decelerated when changing from high speed to low speed by maintaining a constant pressure on the exhaust side of the air cylinder using a relief valve, etc., but this method is generally difficult in air circuits.
［発明が解決しようとする課題］
この発明は空気シリンダにおいてピストンロッドの減速
が容易に実施でき、かつ減速ショックの小さい空気シリ
ンダにおけるピストンロッドの減速制御方法の提供を課
題とする。[Problems to be Solved by the Invention] An object of the present invention is to provide a method for controlling deceleration of a piston rod in an air cylinder in which the deceleration of the piston rod in an air cylinder can be easily performed and the deceleration shock is small.
［課題を解決するための技術的手段］
上記の課題を解決するためけこの発明は負荷に連結され
た空気シリンダのピストンロッドの速度を高速行程から
低速行程に移行させる際の減速行程において、空気シリ
ンダの吸、排気ボーｉ〜の少なくとも一方のポートの空
気の流れを、ピストンロッドの高速行程時の空気の流れ
と逆にし、逆流空気の圧力及び流動時間を負荷の運動エ
ネルギ量に対応させて設定している。[Technical Means for Solving the Problems] In order to solve the above problems, the present invention provides an air cylinder that is connected to a load. The air flow in at least one port of the cylinder's suction and exhaust ports is reversed to the air flow during high-speed stroke of the piston rod, and the pressure and flow time of the reverse air are made to correspond to the kinetic energy of the load. It is set.
５作用コ
負荷に連結されたピストンロッドの速度を高速行程から
低速行程に移行させる際の減速行程において、空気シリ
ンダの吸、排気ボートの少なくとも一方のポートの空気
の流れを、ピストンロッドの高速行程時の空気の流れと
逆にし、逆流空気の圧力及び流動時間を負荷の運動エネ
ルギ量に対応させて、即ち運動エネルギ量が大きい時は
大きく設定されているので減速は効果的に行なわれ、か
つショックの発生が少ない。5 Action During the deceleration stroke when the speed of the piston rod connected to the load is transferred from a high-speed stroke to a low-speed stroke, the flow of air in at least one port of the air cylinder's intake port and exhaust boat is controlled during the high-speed stroke of the piston rod. The pressure and flow time of the backflow air are made to correspond to the amount of kinetic energy of the load, that is, when the amount of kinetic energy is large, the setting is large, so deceleration is effectively performed. Shocks are less likely to occur.
［実施例］
以下実施例を示す図面によりこの発明を説明する。第１
〜３図は第１実施例を示す。同図において１は空気シリ
ンダを、２はピストンを、３はピストンロッドを、４は
ヘッド側ポートを、５はロッド側ポートを、Ｗは負荷を
それぞれ示す。７は空気シリンダ切換弁で、本出願人の
出願に係わる特願昭６３−３０７１８６号において開示
されているものである。[Examples] The present invention will be described below with reference to drawings showing examples. 1st
Figures 1 to 3 show the first embodiment. In the figure, 1 is an air cylinder, 2 is a piston, 3 is a piston rod, 4 is a head side port, 5 is a rod side port, and W is a load. 7 is an air cylinder switching valve, which is disclosed in Japanese Patent Application No. 63-307186 filed by the present applicant.
第１実施例の説明に先立ち前記の空気シリンダ切換弁（
以俊単に切換弁と言う）７の構成、作用を第１０図、第
１１図により説明する。第１０図において、切換弁７の
ハウジング８内には第１調圧ピストン１５、第２調圧ピ
ストン１６が配置され、第１調圧ピストン１５と底壁１
２との間が受圧室１７となっており、両調圧ピストン１
５．１６間が背圧室１８、第２調圧ピストン１６とハウ
ジング８との間が調整室１９となっている。底壁１２に
は中間フランジ３３か設けられ、その上、下側はそれぞ
れ大気圧室４２と一次圧室３８となっている。大気圧室
４２と一次圧室３８とは二次圧室３７を介して連通して
いる。大気圧室４２はボート４２ａを介して大気に連通
し、二次圧室３７は二次圧室通路４９を介して空気シリ
ンダ６０のロッド側ポート６１に連通している。−次圧
室３８は空気源４８に連通している。第１調圧ピストン
１５にはステム４６か取りつ【ブられ、ステム４６に第
２弁体４１が固着されている。第２弁体４１は第１調圧
ピストン１５の移動により二次圧室３７と大気圧室４２
とを連通又は遮断する。Prior to the explanation of the first embodiment, the air cylinder switching valve (
The structure and operation of the switching valve 7 (simply referred to as a switching valve) will be explained with reference to FIGS. 10 and 11. In FIG. 10, a first pressure regulating piston 15 and a second pressure regulating piston 16 are arranged in the housing 8 of the switching valve 7, and the first pressure regulating piston 15 and the bottom wall 1
2 is a pressure receiving chamber 17, and both pressure regulating pistons 1
The space between 5 and 16 is a back pressure chamber 18, and the space between the second pressure regulating piston 16 and the housing 8 is a regulating chamber 19. An intermediate flange 33 is provided on the bottom wall 12, and the upper and lower sides thereof form an atmospheric pressure chamber 42 and a primary pressure chamber 38, respectively. The atmospheric pressure chamber 42 and the primary pressure chamber 38 communicate with each other via the secondary pressure chamber 37. The atmospheric pressure chamber 42 communicates with the atmosphere via a boat 42a, and the secondary pressure chamber 37 communicates with the rod side port 61 of the air cylinder 60 via a secondary pressure chamber passage 49. - the subpressure chamber 38 communicates with an air source 48; A stem 46 is attached to the first pressure regulating piston 15, and a second valve body 41 is fixed to the stem 46. The second valve body 41 is moved between the secondary pressure chamber 37 and the atmospheric pressure chamber 42 by the movement of the first pressure regulating piston 15.
communicate or cut off.
次圧室３８と二次圧室３７とは第１弁体ばね４３により
付勢されている第１弁体３９により常には連通を遮断さ
れている。第１弁体３９とステム４６の下端との間には
隙間が設けられており、ステム４６が第１調圧ピストン
１５とともに下降するとステム４６の下端が第１弁体３
９に当接し、第１弁体ばね４３の弾力に抗して第１弁体
３９を押し下げ、−次圧室３８と二次圧室３７とを連通
させる。The communication between the secondary pressure chamber 38 and the secondary pressure chamber 37 is normally cut off by the first valve body 39 which is biased by the first valve body spring 43 . A gap is provided between the first valve body 39 and the lower end of the stem 46, and when the stem 46 descends together with the first pressure regulating piston 15, the lower end of the stem 46
9 and pushes down the first valve body 39 against the elasticity of the first valve body spring 43, thereby causing the secondary pressure chamber 38 and the secondary pressure chamber 37 to communicate with each other.
二次圧室３７は二次圧室ボート５０．３ポ一ト２位置空
圧電磁弁（以後３ボート電磁弁と言う）５１及び受圧室
ポート５２を介して受圧室１７に連通可能となっている
。調整室１９は調整室ボート５３を介して５ボ一ト２位
置空圧電磁弁（以後５ポート電磁弁と言う）５４に連通
可能となり、５ポート電磁弁５４は３ポート電磁弁５１
に接続しており、又空気源４８に連通している。The secondary pressure chamber 37 can communicate with the pressure receiving chamber 17 via a secondary pressure chamber boat 50.3 point 2 position pneumatic solenoid valve (hereinafter referred to as 3 boat solenoid valve) 51 and a pressure receiving chamber port 52. There is. The adjustment chamber 19 can communicate with a 5-port 2-position pneumatic solenoid valve (hereinafter referred to as 5-port solenoid valve) 54 via an adjustment chamber boat 53, and the 5-port solenoid valve 54 is connected to the 3-port solenoid valve 51.
It is also connected to an air source 48.
二次圧室３７の圧力調整はハンドル２２と第１調整ばね
２４とにより行なわれる。The pressure in the secondary pressure chamber 37 is adjusted by the handle 22 and the first adjustment spring 24.
第１１図は切換弁７の動作を模式的に示したものである
。同図において、
（イ）は第１０図のピストン６３を急速上昇させる場合
を示し、３ポート電磁弁５１．５ポート電磁弁５４に通
電すると５ポート電磁弁５４を介して調整室１９に空気
源４８から加圧空気が導入され、第２調整ピストン１６
を押し下げる。これにともない第１調圧ピストン１５は
押し下げられ、受圧室１７の空気は３ポート電磁弁５１
．５ポート電磁弁５４を経て大気中に排気され、又第１
弁体３９は押し下げられて一次圧室３８と二次圧室３７
とが連通し、空気源４８の空気が空気シリンダ６０のロ
ッド側に供給され、ピストン６３が負荷Ｗとともに急速
上昇する。二次圧室３７の圧力は一次圧力と等しくなっ
ている。FIG. 11 schematically shows the operation of the switching valve 7. In the same figure, (A) shows the case where the piston 63 of FIG. Pressurized air is introduced from 48 and the second adjusting piston 16
Press down. Accordingly, the first pressure regulating piston 15 is pushed down, and the air in the pressure receiving chamber 17 is pumped through the 3-port solenoid valve 51.
．． It is exhausted to the atmosphere through the 5-port solenoid valve 54, and the first
The valve body 39 is pushed down and the primary pressure chamber 38 and the secondary pressure chamber 37
The air from the air source 48 is supplied to the rod side of the air cylinder 60, and the piston 63 rises rapidly along with the load W. The pressure in the secondary pressure chamber 37 is equal to the primary pressure.
（ロ）はピストン６３を低速上昇させる場合及び空気シ
リンダ６０の上端での停止の場合を示し、３ポート電磁
弁５１を非通電、５ポート電磁弁５４を通電にする。こ
れにより５ポート電磁弁５４を介して調整室１９に空気
源４８から加圧空気が導入され、第２調圧ピストン１６
を押し下げる。(b) shows a case where the piston 63 is raised at a low speed and a case where the air cylinder 60 is stopped at the upper end, the 3-port solenoid valve 51 is de-energized and the 5-port solenoid valve 54 is energized. As a result, pressurized air is introduced from the air source 48 into the adjustment chamber 19 via the 5-port solenoid valve 54, and the second pressure adjustment piston 16
Press down.
これにともない第１調圧ピストン１５は押し下げられ受
圧室１７は３ポート電磁弁５１を介して二次圧室３７に
連通する。二次圧は第１調整ばね２４により高圧に調整
され、ステム４３は第１弁体３９を少し押し下げ二次圧
室３７を一次圧室３８と小隙間を介して連通させる。こ
れにより空気源４８の加圧空気は一次圧室３８から徐々
に二次圧室３７に、さらに空圧シリンダ６０のロッド側
のボート６１に流れるので、ビントン６３は減速上昇し
上昇端に達する。Accordingly, the first pressure regulating piston 15 is pushed down and the pressure receiving chamber 17 communicates with the secondary pressure chamber 37 via the 3-port solenoid valve 51. The secondary pressure is adjusted to a high pressure by the first adjustment spring 24, and the stem 43 slightly pushes down the first valve body 39 to communicate the secondary pressure chamber 37 with the primary pressure chamber 38 through a small gap. As a result, the pressurized air from the air source 48 gradually flows from the primary pressure chamber 38 to the secondary pressure chamber 37 and further to the boat 61 on the rod side of the pneumatic cylinder 60, so that the Vinton 63 decelerates and rises to reach the rising end.
（ハ）はピストン６３を急速降下させる場合を示し、３
ポート電磁弁５１を通電、５ボート電磁弁５４を非通電
にする。これにより空気源４８の加圧空気が５ボート電
磁弁５４．３ボート電磁弁５１経て受圧室１７に導入さ
れ、第１調圧ピストン１５が上昇する。これにともない
ステム４６を介して第２弁体４１が上昇し、二次圧室３
７と大気圧室４２とが連通し、又−次圧室３８と二次圧
室３７とは第１弁体ばね４３の弾力を受けている第１弁
体３９により連通を遮断されているので空気シリンダ６
０のロッド６４側のシリンダ室内の空気が急速に大気中
に放出され、ピストンが急降下する。(C) shows the case where the piston 63 is rapidly lowered;
The port solenoid valve 51 is energized, and the 5-boat solenoid valve 54 is de-energized. As a result, the pressurized air from the air source 48 is introduced into the pressure receiving chamber 17 through the five-boat solenoid valve 54 and the third-boat solenoid valve 51, and the first pressure regulating piston 15 moves up. Accordingly, the second valve body 41 rises via the stem 46, and the secondary pressure chamber 3
7 and the atmospheric pressure chamber 42 are in communication, and the secondary pressure chamber 38 and the secondary pressure chamber 37 are cut off from communication by the first valve body 39 which is receiving the elasticity of the first valve body spring 43. air cylinder 6
The air in the cylinder chamber on the 0 rod 64 side is rapidly released into the atmosphere, causing the piston to descend rapidly.
（ニ）はピストン６３を低速降下及び下降端に位置させ
る場合を示し、３ポート電磁弁５１及び５ボート電磁弁
５４を共に非通電にする。これにより空気源４８の加圧
空気は切換弁７には供給されず、二次圧室３７は二次圧
室ボート５０．３ポート電磁弁５１及び受圧室ボート５
２を介して受圧室１７に連通する。そして二次圧は第１
調整ばね２４により低圧に調整されており、二次圧室３
７と大気圧室４２とは小隙間を介して連通し、空気シリ
ンダ６０の空気は二次圧室３７から徐々に大気圧室４２
、ボート４２ａを経て大気中に放出されるのでピストン
６３は減速降下し、降下端に達する。(D) shows the case where the piston 63 is positioned at the low speed lowering and lowering end, and both the 3-port solenoid valve 51 and the 5-boat solenoid valve 54 are de-energized. As a result, pressurized air from the air source 48 is not supplied to the switching valve 7, and the secondary pressure chamber 37 is connected to the secondary pressure chamber boat 50.3 port solenoid valve 51 and the pressure receiving chamber boat 5.
It communicates with the pressure receiving chamber 17 via 2. And the secondary pressure is the first
The pressure is adjusted to low by the adjustment spring 24, and the secondary pressure chamber 3
7 and the atmospheric pressure chamber 42 communicate with each other through a small gap, and the air in the air cylinder 60 gradually flows from the secondary pressure chamber 37 to the atmospheric pressure chamber 42.
, the piston 63 decelerates and descends, reaching the lower end.
第１実施例において空気シリンダ１のヘッド側ボート４
及びロッド側ボート５に空気シリンダ切換弁７の二次圧
室通路４９がそれぞれ連結されている。この場合
（ａ）第１図はピストンロッド３の高速行程を示す。高
速行程中ではヘッド側ポート４の切換弁７は第１１図の
（イ）の状態に保持され、ロッド側ポート５の切換弁７
は第１１図の（ハ）の状態に保持される。即ち空気シリ
ンダ１のヘッド側に空気が急速に供給され、ロッド側か
ら空気が急速に排出されるのでピストンロッド３は高速
で移動する。In the first embodiment, the head side boat 4 of the air cylinder 1
A secondary pressure chamber passage 49 of the air cylinder switching valve 7 is connected to the rod-side boat 5 and the rod-side boat 5, respectively. In this case, (a) FIG. 1 shows the high-speed stroke of the piston rod 3. During the high-speed stroke, the switching valve 7 of the head side port 4 is held in the state shown in FIG. 11 (a), and the switching valve 7 of the rod side port 5 is
is maintained in the state shown in FIG. 11(c). That is, air is rapidly supplied to the head side of the air cylinder 1, and air is rapidly discharged from the rod side, so that the piston rod 3 moves at high speed.
（ｂ）第２図はピストンロッド３の減速行程を示す。減
速行程中ではヘッド側ポート４の切換弁７は第１１図の
（ハ）の状態［急速排気で気流の方向は（ａ）の場合と
逆になる］又は第１１図の（ロ）の状態［減速吸気で気
流の方向は（ａ）の場合と同じコ又は第１１図の（ニ）
の状＠［減速排気で気流の方向は（ａ）の場合とは逆］
に保持され、これ等の各状態にそれぞれ対応してロット
側ボート５の切換弁７は第１１図の（イ）の状態［急速
吸気で気流の方向は（ａ＞の場合とは逆］又は第１１図
の（ロ）の状態［減速吸気で気流の方向は（ａ＞と逆］
又は第１１図の（ニ）の状態［減速排気で気流の方向は
（ａ）の場合と同じ］に保持される。この操作即ちヘッ
ド側ポート４及びロッド側ボート５の少なくとも一方の
ボートの空気流の方向をピストンロッド３の高速行程の
時のヘッド側ポート４及びロッド側ボート５の空気流の
方向と逆にすることは短い時間性なわれ、この操作によ
り、減速が達成される。２個の切換弁７．７の前述の作
動態様の組合せ及び作動時間をどのように選ぶかは負荷
Ｗの運動のエネルギの大小により決められる。例えば負
荷の運動のエネルギが大きい時はヘッド側ポート４の切
換弁７を第１１図の（ハ）の状態に、ロッド側ボート５
の切換弁７を第１１図の（イ）の状態に短い時間保持さ
れる。なお、減速の割合を大きく又減速時間を短くする
とショックが発生するので注意が必要である。(b) FIG. 2 shows the deceleration stroke of the piston rod 3. During the deceleration stroke, the switching valve 7 of the head side port 4 is in the state shown in (c) in Fig. 11 [the direction of airflow is opposite to that in (a) due to rapid exhaust] or the state in (b) in Fig. 11 [During deceleration intake, the direction of airflow is the same as in (a) or (d) in Figure 11.
Condition @ [The direction of airflow is opposite to the case (a) with deceleration exhaust]
Corresponding to each of these states, the switching valve 7 of the lot-side boat 5 is set to the state of (a) in Fig. 11 [with rapid intake, the direction of airflow is opposite to (a>)] or Condition (b) in Figure 11 [The direction of airflow is opposite to (a> with deceleration intake)]
Alternatively, the state shown in (d) in FIG. 11 is maintained [the direction of the airflow is the same as in (a) with deceleration exhaust]. This operation is to reverse the direction of air flow in at least one of the head side port 4 and rod side boat 5 to the direction of air flow in the head side port 4 and rod side boat 5 during high-speed stroke of the piston rod 3. This is only for a short period of time, and this operation achieves deceleration. The combination of the above-mentioned operating modes and operating times of the two switching valves 7.7 are determined depending on the magnitude of the kinetic energy of the load W. For example, when the kinetic energy of the load is large, the switching valve 7 of the head side port 4 is set to the state shown in (c) in Fig. 11, and the rod side boat 5
The switching valve 7 is held in the state shown in FIG. 11(a) for a short time. Note that if the deceleration rate is increased or the deceleration time is shortened, a shock will occur, so care must be taken.
（Ｃ）第３図はピストンロッド３の低速行程を示す。低
速行程ではヘッド側ポート４の切換弁７は第１１図の（
ロ）の状態に保持され、ロッド側ポート５の切換弁７は
第１１図の（ニ）の状態に保持される。卯ち空気シリン
ダ１のヘッド側に空気が減速供給され、ロッド側から空
気が減速排出されるのでピストンロッド３は低速で移動
する。(C) FIG. 3 shows the low speed stroke of the piston rod 3. In the low-speed stroke, the switching valve 7 of the head side port 4 is operated as shown in Fig. 11 (
The switching valve 7 of the rod side port 5 is maintained in the state shown in (d) in FIG. 11. Air is decelerated and supplied to the head side of the air cylinder 1, and air is decelerated and discharged from the rod side, so the piston rod 3 moves at a low speed.
第４〜６は第２実施例で、空気シリンダ１が上下方向に
配置され、ピストンロッド３の下端に負荷Ｗが取り付け
られ、負荷Ｗを下方に移動させる場合を示し、第４図は
高速行程を、第５図は減速行程を、第６図は低速行程を
それぞれ示す。各行程における切換弁７の切替操作は第
１実施例の場合と同じである。なお、第４〜６図におい
て第１０図と同じように上側の切換弁７を省略してもよ
い。4 to 6 are the second embodiment, in which the air cylinder 1 is arranged vertically, a load W is attached to the lower end of the piston rod 3, and the load W is moved downward; FIG. , FIG. 5 shows the deceleration stroke, and FIG. 6 shows the low speed stroke. The switching operation of the switching valve 7 in each stroke is the same as in the first embodiment. In addition, in FIGS. 4 to 6, the upper switching valve 7 may be omitted as in FIG. 10.
第７〜９は第３実施例で、空気シリンダ１が上下方向に
配置され、ピストンロッド３の下端に負荷Ｗが取り付け
られ、負荷Ｗを上方に移動させる場合を示し、第７図は
高速行程を、第８図は減速行程を、第９図は低速行程を
それぞれ示す。第７図ではロッド側ポート５の切換弁７
が第１１図の（イ）の状態に、又ヘッド側ポート４の切
換弁７が第１１図の（ハ）の状態にそれぞれ保持され、
第１実施例の第１図とは空気の流れは逆になる。7 to 9 are the third embodiment, in which the air cylinder 1 is arranged vertically, a load W is attached to the lower end of the piston rod 3, and the load W is moved upward; FIG. , FIG. 8 shows the deceleration stroke, and FIG. 9 shows the low speed stroke. In Fig. 7, the switching valve 7 of the rod side port 5
is held in the state shown in FIG. 11 (A), and the switching valve 7 of the head side port 4 is held in the state shown in FIG. 11 (C), respectively.
The air flow is opposite to that in FIG. 1 of the first embodiment.
同様に第８．９図も第１実施例の第２．３図とは空気の
流れは逆になる。なお、第７〜９図において第１０図と
同じように上側の切換弁７を省略してもよい。Similarly, the air flow in FIG. 8.9 is opposite to that in FIG. 2.3 of the first embodiment. In addition, in FIGS. 7 to 9, the upper switching valve 7 may be omitted as in FIG. 10.
上記の各実施例において、空気シリンダ７のヘッド側ポ
ート４及びロッド側ポート５に接続する切換弁は前記切
換弁７の型式のものに限定されないことは勿論である。In each of the above embodiments, the switching valves connected to the head side port 4 and rod side port 5 of the air cylinder 7 are of course not limited to the type of the switching valve 7 described above.
「効果］
この発明は上述のように負荷に連結された空気シリンダ
のピストンロッドの速度を高速行程から低速行程に移行
させる際の減速行程において、空気シリンダの吸、排気
ポートの少なくとも一方のボートの空気流の方向を、ピ
ストンロッドの高速行程時の空気流の方向と逆にし、逆
流空気の圧力及び流動時間を負荷の運動エネルキ量に対
応させて設定するので従来困難であった空気回路におい
て空気シリンダのピストンロッドの減速か極めて容易と
なり、かつ減速ショックの小さい空気シリンダを提供す
る。``Effects'' As described above, the present invention provides that during the deceleration stroke when the speed of the piston rod of the air cylinder connected to the load is transferred from the high-speed stroke to the low-speed stroke, at least one of the intake and exhaust ports of the air cylinder is closed. The direction of the air flow is reversed to the direction of the air flow during the piston rod's high-speed stroke, and the pressure and flow time of the backflow air are set in accordance with the amount of kinetic energy of the load. To provide an air cylinder in which deceleration of a piston rod of the cylinder is extremely easy and the deceleration shock is small.
第１．２．３図はそれぞれ第１実施例の高速行程、減速
行程、低速行程の空気シリンダの動作図を示す。第４．
５．６図はそれぞれ第２実施例の高速行程、減速行程、
低速行程の空気シリンダの動作図を示す。第７．８．９
図はそれぞれ第３実施例の高速行程、減速行程、低速行
程の空気シリンダの動作図を示す。第１０図は上記の各
実施例に使用された切換弁の一例を示す。第１１図は第
１０図の切換弁の作動状態を示す模式図である。
卿Ｏ図
１・・・空気シリンダ
２・・・ピストン
３・・・ピストンロッド
４−・・ヘッド側ポート（吸、排気ポート）５・・・ロ
ッド側ポート（吸、排気ポート〉７・・・空気シリンダ
切換弁Figures 1, 2 and 3 show operation diagrams of the air cylinder during the high speed stroke, deceleration stroke and low speed stroke of the first embodiment, respectively. 4th.
5.6 shows the high-speed stroke, deceleration stroke, and deceleration stroke of the second embodiment, respectively.
The operation diagram of the air cylinder in the low speed stroke is shown. Section 7.8.9
The figures show operation diagrams of the air cylinder in the high speed stroke, deceleration stroke, and low speed stroke of the third embodiment, respectively. FIG. 10 shows an example of the switching valve used in each of the above embodiments. FIG. 11 is a schematic diagram showing the operating state of the switching valve shown in FIG. 10. Figure 1...Air cylinder 2...Piston 3...Piston rod 4-...Head side port (suction, exhaust port) 5...Rod side port (suction, exhaust port) 7... air cylinder switching valve
Claims (1)
を高速行程から低速行程に移行させる際の減速行程にお
いて、空気シリンダの吸、排気ポートの少なくとも一方
のポートの空気の流れを、ピストンロッドの高速行程時
の空気の流れと逆にし、逆流空気の圧力及び流動時間を
負荷の運動エネルギ量に対応させて設定することを特徴
とする空気シリンダにおけるピストンロッドの減速制御
方法。During the deceleration stroke when the speed of the piston rod of the air cylinder connected to the load is transferred from a high-speed stroke to a low-speed stroke, the air flow in at least one of the intake and exhaust ports of the air cylinder is changed to the speed of the piston rod during the high-speed stroke of the piston rod. 1. A method for controlling deceleration of a piston rod in an air cylinder, characterized by setting the pressure and flow time of backflow air in a manner that corresponds to the amount of kinetic energy of a load by reversing the flow of air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10087890A JPH045A (en) | 1990-04-17 | 1990-04-17 | Deceleration controlling method for piston rod in pneumatic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10087890A JPH045A (en) | 1990-04-17 | 1990-04-17 | Deceleration controlling method for piston rod in pneumatic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH045A true JPH045A (en) | 1992-01-06 |
Family
ID=14285586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10087890A Pending JPH045A (en) | 1990-04-17 | 1990-04-17 | Deceleration controlling method for piston rod in pneumatic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH045A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05346102A (en) * | 1992-06-11 | 1993-12-27 | Sailor Pen Co Ltd:The | Control method for vertical air cylinder |
| US6285060B1 (en) * | 1999-12-30 | 2001-09-04 | Siliconix Incorporated | Barrier accumulation-mode MOSFET |
| US6348705B1 (en) * | 1999-12-22 | 2002-02-19 | Advanced Technology Materials, Inc. | Low temperature process for high density thin film integrated capacitors and amorphously frustrated ferroelectric materials therefor |
| US6404024B1 (en) * | 1999-08-30 | 2002-06-11 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor device |
| US6603203B2 (en) * | 1998-03-04 | 2003-08-05 | Nec Electronics Corporation | Semiconductor device having capacitive element structure and multilevel interconnection structure and method of fabricating the same |
| US6611015B2 (en) * | 2000-09-20 | 2003-08-26 | Kabushiki Kaisha Toshiba | Semiconductor device including dummy upper electrode |
| US6630721B1 (en) * | 2000-05-16 | 2003-10-07 | Advanced Micro Devices, Inc. | Polysilicon sidewall with silicide formation to produce high performance MOSFETS |
| US6638803B2 (en) | 2000-01-18 | 2003-10-28 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor device and method for manufacturing the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115176A (en) * | 1974-07-29 | 1976-02-06 | Sumitomo Electric Industries | Shasuikozoojusuru gomu purasuchitsukudenryokukeeburuno seizohoho |
| JPS51141974A (en) * | 1975-06-02 | 1976-12-07 | Fuji Electric Co Ltd | Control process of double motion of air pressure cylinder |
| JPS58644A (en) * | 1981-06-22 | 1983-01-05 | Japan Steel Works Ltd:The | Cushion circuit of air cylinder for moving high speed large inertia object |
-
1990
- 1990-04-17 JP JP10087890A patent/JPH045A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115176A (en) * | 1974-07-29 | 1976-02-06 | Sumitomo Electric Industries | Shasuikozoojusuru gomu purasuchitsukudenryokukeeburuno seizohoho |
| JPS51141974A (en) * | 1975-06-02 | 1976-12-07 | Fuji Electric Co Ltd | Control process of double motion of air pressure cylinder |
| JPS58644A (en) * | 1981-06-22 | 1983-01-05 | Japan Steel Works Ltd:The | Cushion circuit of air cylinder for moving high speed large inertia object |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05346102A (en) * | 1992-06-11 | 1993-12-27 | Sailor Pen Co Ltd:The | Control method for vertical air cylinder |
| US6603203B2 (en) * | 1998-03-04 | 2003-08-05 | Nec Electronics Corporation | Semiconductor device having capacitive element structure and multilevel interconnection structure and method of fabricating the same |
| US6404024B1 (en) * | 1999-08-30 | 2002-06-11 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor device |
| US6348705B1 (en) * | 1999-12-22 | 2002-02-19 | Advanced Technology Materials, Inc. | Low temperature process for high density thin film integrated capacitors and amorphously frustrated ferroelectric materials therefor |
| US6285060B1 (en) * | 1999-12-30 | 2001-09-04 | Siliconix Incorporated | Barrier accumulation-mode MOSFET |
| US6638803B2 (en) | 2000-01-18 | 2003-10-28 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor device and method for manufacturing the same |
| US6630721B1 (en) * | 2000-05-16 | 2003-10-07 | Advanced Micro Devices, Inc. | Polysilicon sidewall with silicide formation to produce high performance MOSFETS |
| US6611015B2 (en) * | 2000-09-20 | 2003-08-26 | Kabushiki Kaisha Toshiba | Semiconductor device including dummy upper electrode |
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