JPS60250829A - Piercing equipment - Google Patents

Piercing equipment

Info

Publication number
JPS60250829A
JPS60250829A JP10749484A JP10749484A JPS60250829A JP S60250829 A JPS60250829 A JP S60250829A JP 10749484 A JP10749484 A JP 10749484A JP 10749484 A JP10749484 A JP 10749484A JP S60250829 A JPS60250829 A JP S60250829A
Authority
JP
Japan
Prior art keywords
chamber
pressure
air
oil
pneumatic
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
Application number
JP10749484A
Other languages
Japanese (ja)
Other versions
JPH0140694B2 (en
Inventor
Seiji Tomoshige
友重 静二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Shatai Co Ltd
Original Assignee
Nissan Shatai Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Shatai Co Ltd filed Critical Nissan Shatai Co Ltd
Priority to JP10749484A priority Critical patent/JPS60250829A/en
Publication of JPS60250829A publication Critical patent/JPS60250829A/en
Publication of JPH0140694B2 publication Critical patent/JPH0140694B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/26Perforating, i.e. punching holes in sheets or flat parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Cutting Processes (AREA)

Abstract

PURPOSE:To make the driving timing of a cylinder device for pressure increasing correct by performing the changeover in sending an oil pressurized according to the reversion and rise of the pressure of the air in an air pressure and oil pressure converting chamber based on a punch abutting a work. CONSTITUTION:The volume of the air side of the air pressure of an air oil pressures converting chamber 24 is increased in accordance with the oil 27 stored in the air pressure and oil pressure converting chamber 24 being sent pressurized toward each oil pressure chamber 10 and becomes a little lower than the pressure of an air supply source 15. The pressurized feeding of the oil 27 for each oil pressure chamber 10 which is from the air pressure oil pressure converting chamber 24 is stopped due to the stoppage of the movement of a cylinder 5 for piercing respectively, when a punch 8 is brought into contact with a work 9. The pressure of the air of the air pressure and oil pressure converting chamber 24 is returned and raised upto the air pressure owned by the air supply source 15. A changing over valve 39 is driven based on the air pressure of the air supply source 15.

Description

【発明の詳細な説明】 一1泉ユ0+す」九災 本発明は、シリンダ室を往復動する穿股用ビストンにワ
ーク穿孔用のパンチが取り付けられている複数個の穿設
用シリンダ装置を備えて、ワークに一度に複数個の穿孔
を行なう穿孔装置の改良に関するものである。
Detailed Description of the Invention The present invention comprises a plurality of drilling cylinder devices in which a punch for drilling a workpiece is attached to a drilling piston that reciprocates in a cylinder chamber. The present invention relates to an improvement of a punching device for punching a plurality of holes in a workpiece at once.

従来技術 従来から、シリンダ室を往復動する穿設用ピストンにワ
ーク穿孔用のパンチが取り付けられている複数個の穿孔
用シリンダ装置と、その各シリンダ室にオイル通路を介
して連通されると共に分岐通路を有する空気通路を介し
て空気供給源に連通されて空圧を油圧に変換する空圧油
圧変換室を有し、その空気供給源からの空気供給に基づ
いてオイルを前記各シリンダ室に圧送してその各穿設用
ピストンをそのワークに向かって往動させると共に、そ
の各穿設用ピストンの復帰動に伴なってその各シリンダ
室のオイルが前記空圧油圧変換室に返送される空圧油圧
変換手段と、その各シリンダ室に前記オイル通路を介し
て連通される油室とその油室のオイルをその各シリンダ
室に向かって圧送する増圧用ピストンと分岐通路を介し
てその空気供給源に連通される空圧室とを有し、そのワ
ークにそのパンチが当接した後にその増圧用ピストンが
駆動され、その空圧油圧変換室からその各シリンダ室に
向かってのオイルの圧送を止めると共にその油室のオイ
ルをその各シリンダ室に向かって圧送する増圧用シリン
ダ装置とを備えて、ワークにパンチが当接するまでの間
は空圧油圧変換室に貯溜されているオイルをその各シリ
ンダ室に圧送し、ワークにパンチが当接後はその増圧用
シリンダ装置を駆動してその空圧油圧変換室から各シリ
ンダ室に向かってのオイルの圧送を止める共に、その増
圧用シリンダ装置の油室のオイルを各シリンダ室に向か
って圧送して、ワークに複数個の穿孔を同時に行なう穿
孔装置が知られている。
PRIOR ART Conventionally, there has been a plurality of drilling cylinder devices in which a punch for drilling a workpiece is attached to a drilling piston that reciprocates in a cylinder chamber, and each cylinder chamber is communicated with and branched through an oil passage. A pneumatic-hydraulic conversion chamber is connected to an air supply source through an air passage having a passage to convert pneumatic pressure into hydraulic pressure, and oil is pumped to each of the cylinder chambers based on the air supply from the air supply source. and moves each drilling piston forward toward the work, and as the drilling piston returns, the oil in each cylinder chamber is returned to the pneumatic-hydraulic conversion chamber. a pressure-hydraulic conversion means, an oil chamber that communicates with each cylinder chamber through the oil passage, a pressure increasing piston that pressure-feeds oil in the oil chamber toward each cylinder chamber, and air supply through the branch passage. After the punch comes into contact with the workpiece, the pressure increasing piston is driven to pump oil from the pneumatic-hydraulic conversion chamber toward each cylinder chamber. It is equipped with a pressure increasing cylinder device that stops the oil chamber and pumps the oil in the oil chamber toward each cylinder chamber, and pumps the oil stored in the pneumatic-hydraulic conversion chamber until the punch comes into contact with the workpiece. After the punch comes into contact with the workpiece, the pressure increasing cylinder device is driven to stop the pressure feeding of oil from the pneumatic-hydraulic conversion chamber toward each cylinder chamber, and the pressure increasing cylinder device is driven. 2. Description of the Related Art A drilling device is known that simultaneously punches a plurality of holes in a workpiece by force-feeding oil in an oil chamber toward each cylinder chamber.

月m友旦劣うとする間阪寡 ところで、この従来の穿孔装置では、空圧油圧変換室か
ら各シリンダ室に向かってのオイル圧送と増圧用シリン
ダ装置の油室から各シリンダ室に向かってのオイル圧送
との切換えを図るために、リミットスイッチと制御回路
とを設けて、このリミッI−スイッチによってワークに
パンチが当接したことを検出する構成となっているが、
各穿設用ピストン毎にその往復動に差異があるために、
−の穿設用ピストンはこれに取り付けられているパンチ
がワークに当接しているにもかかわらず他の穿設用ピス
トンはこれに取り付けられているパンチがワークに当接
していないという状態を生ずることがあり、切り換えの
タイミングを取りづらく、そこで、従来の穿孔装置では
、各シリンダ毎にリミッI−スイッチを設けてこの各リ
ミットスイッチの全てがワークにパンチが当接したこと
を検出することに基づいて、制御回路を作動させ、増圧
用ピストンを駆動するようにしているが、そのために、
構成がきわめて複雑となるという問題がある。
By the way, in this conventional drilling device, the oil pressure is sent from the pneumatic-hydraulic conversion chamber toward each cylinder chamber, and the oil chamber of the pressure boosting cylinder device is sent toward each cylinder chamber. In order to switch between oil pressure feeding and oil pressure feeding, a limit switch and a control circuit are provided, and this limit I-switch is configured to detect when the punch contacts the workpiece.
Because each drilling piston has a different reciprocating motion,
- Although the punch attached to this drilling piston is in contact with the workpiece, the punches attached to the other drilling pistons are not in contact with the workpiece. Therefore, in conventional punching equipment, a limit I-switch is provided for each cylinder, and all of these limit switches detect when the punch contacts the workpiece. Based on this, the control circuit is activated to drive the pressure boosting piston, but for this purpose,
The problem is that the configuration is extremely complicated.

このリミットスイッチを設けるかわりに、タイマ一手段
を設けて穿設用ピストン駆動後一定時間経過後に増圧用
シリンダ装置を駆動する構成とすることも考えられるが
、このように構成すると、パンチがワークに当接したこ
とを直接検出する構成ではないので、全てのパンチがワ
ークに当接するまでの時間を余分に見込まなければなら
す、穿孔作業効率が低下する。
Instead of providing this limit switch, it may be possible to provide a timer means to drive the pressure increasing cylinder device after a certain period of time has elapsed after driving the drilling piston, but with this configuration, the punch will not touch the workpiece. Since it is not configured to directly detect contact, it is necessary to allow extra time for all the punches to contact the workpiece, which reduces the efficiency of the punching operation.

見匪夙且攻 本発明は、上記従来技術の有する問題点に鑑みてなされ
たもので、その目的どするところは、構成が簡単で、か
つ、空圧油圧変換室からの各シリンダ室に向かってのオ
イルの圧送と増圧用シリンダ装置の油室から各シリンダ
室に向かってのオイルの圧送との切換えタイミングを効
率よく図ることのできる穿孔装置を提供することにある
The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to have a simple configuration and to provide a flow path from the pneumatic-hydraulic conversion chamber to each cylinder chamber. It is an object of the present invention to provide a perforation device that can efficiently control the switching timing between the pressure feeding of oil from all cylinders and the pressure feeding of oil from the oil chamber of a pressure-increasing cylinder device toward each cylinder chamber.

l匪玖隻匙 本発明は、パンチがワークに当接するとそのワークが抵
抗となって各穿設用シリンダ装置の往動が停止され、そ
れに伴なって空圧油圧変換室から各シリンダ室に向かっ
てのオイルの圧送が停止され、空圧油圧変換室の空気の
圧力が空気供給源が元来有する空気圧力になるまで復帰
上昇することに着目してなされたもので、その特徴とす
るところは、増圧用シリンダ装置の空圧室に連通される
分岐通路に、その空圧室に対する空気供給源からの空気
の供給切換えを行なう空気供給切換手段を設けて、パン
チがワークに当接することに基づく空圧油圧変換室の空
気の圧力復帰上昇に伴なってその空気供給切換手段を駆
動し、その増圧用シリンダ装置の空圧室へ空気供給源か
らの空気を供給すると共に、穿孔完了後にはその空気供
給切換手段を介してその増圧用シリンダ装置の空圧室の
空気を放出することどしたところにある。
In the present invention, when the punch comes into contact with the workpiece, the workpiece acts as resistance and the forward movement of each drilling cylinder device is stopped, and accordingly, the forward movement of each drilling cylinder device is stopped from the pneumatic-hydraulic conversion chamber to each cylinder chamber. This was developed by focusing on the fact that when the pressure of oil is stopped, the air pressure in the pneumatic-hydraulic conversion chamber returns to the original air pressure of the air supply source, and its characteristics are as follows: In this method, an air supply switching means for switching the supply of air from an air supply source to the air pressure chamber is provided in the branch passage communicating with the air pressure chamber of the pressure increasing cylinder device, so that the punch comes into contact with the workpiece. As the pressure of the air in the pneumatic-hydraulic conversion chamber increases, the air supply switching means is driven to supply air from the air supply source to the pneumatic chamber of the pressure-increasing cylinder device. The air in the pneumatic chamber of the pressure increasing cylinder device is discharged via the air supply switching means.

末盤班 以下に本発明に係る穿孔装置の実施例を図面に基づいて
説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Below, embodiments of a drilling device according to the present invention will be described based on the drawings.

第1図ないし第3図において、1はダイ、2はワークで
あって、ここでは、ワーク2の」二方に複数個の穿設用
シリンダ装置3が設けられている。
1 to 3, 1 is a die, 2 is a workpiece, and here, a plurality of drilling cylinder devices 3 are provided on both sides of the workpiece 2. In FIGS.

この穿設用シリンダ装置3は、シリンダ筒4を有してお
り、シリンダ筒4には穿設用ピストン5が設けられて、
穿設用ピストン5はそのシリンダ室A内を往復動される
ようになっている。穿設用ピストン5は、ピストン本体
6とピストンロツド7とから大略構成されており、ピス
トンロンドアの先端には穿孔用パンチ8が取り付けられ
ており、9はワーク穿孔位置においてワーク2をダイ1
と共に挟持する挟持用フランジであり、第1図には各穿
設用ピストンが復帰位置にある状態が示されており、第
3図には各穿設用ピストン5が穿孔完了位置にある状態
が示されている。各シリンダ室Aはピストン本体6によ
って画成されて、シリンダ室Aは油圧室10ど空圧室1
1とからなる構成とさJxており、油圧室10はオイル
通路12を介して空圧油圧変換手段としてのオイル貯溜
タンク13に連通されており、空圧室11は空気通路1
4を介して空気供給源15に連通されている。この空気
通路14と空圧室11とは、穿設用ピストン5を復帰動
させる復帰手段として機能すると共に後述する増圧用シ
リンダ装置16の増圧用ピストン17を復帰動させる復
帰手段としても機能するものである。
This drilling cylinder device 3 has a cylinder tube 4, and the cylinder tube 4 is provided with a drilling piston 5.
The drilling piston 5 is configured to reciprocate within its cylinder chamber A. The drilling piston 5 is roughly composed of a piston body 6 and a piston rod 7, and a drilling punch 8 is attached to the tip of the piston door.
FIG. 1 shows a state in which each drilling piston 5 is in the return position, and FIG. 3 shows a state in which each drilling piston 5 is in a drilling completion position. It is shown. Each cylinder chamber A is defined by a piston body 6, and includes a hydraulic chamber 10 and a pneumatic chamber 1.
The hydraulic chamber 10 is connected to an oil storage tank 13 as a pneumatic-hydraulic conversion means via an oil passage 12, and the pneumatic chamber 11 is connected to an air passage 1.
4 to an air supply source 15. The air passage 14 and the air pressure chamber 11 function as a return means for returning the drilling piston 5, and also function as a return means for returning the pressure increase piston 17 of the pressure increase cylinder device 16, which will be described later. It is.

空気通路14の途中には、切換弁18が設けられ、空気
通路14はこの切換弁18を境にその」−8流側が上流
空気通路19となっており、その下流側が下流空気通路
20となっていて、上流空気通路19の下流端にはボー
ト21が設けられ、第1図には、切換弁18がボート2
1とボー1〜22とを連通ずる状態にあって。
A switching valve 18 is provided in the middle of the air passage 14, and the air passage 14 has an upstream air passage 19 on the downstream side of the switching valve 18, and a downstream air passage 20 on the downstream side thereof. A boat 21 is provided at the downstream end of the upstream air passage 19, and in FIG.
1 and baud 1 to 22 are in communication with each other.

空気通路14を介して空気供給’、i 15からの空気
が各空圧室11に向かって供給されている状態が示され
ている。切換弁18は、ここでは、手動スイッチ23に
よって矢印B−B’方向に往復動されるもので、手動ス
イッチ23を矢印C方向に回動させると矢印B′方向に
駆動され、矢印C方向と反対方向に回動させると矢印B
方向に駆動されるものとなっている。
It is shown that air from the air supply ', i 15 is being supplied towards each pneumatic chamber 11 via the air passage 14 . The switching valve 18 is here reciprocated in the direction of the arrow B-B' by the manual switch 23, and when the manual switch 23 is rotated in the direction of the arrow C, it is driven in the direction of the arrow B', and in the direction of the arrow C. When rotated in the opposite direction, arrow B
It is driven in the direction.

オイル貯溜タンク13は、空圧油圧変換室24を有して
おり、この空圧油圧変換室24は空気通路25、切換弁
18、」二流空気通路19を介して空気供給源15に連
通される構成とされ、26は空気通路25のボー1〜を
示しており、第1図に示すように、切換弁I8が図に示
す位置にあるときには、空圧油圧変換室24の空気が空
気通路25、切換弁」8を介して大気に開放されるもの
となっている。空圧油圧変換室24には、切換弁18が
第2図に示すように矢印B′方向に駆動されるとボート
21とボー1〜26とが連通されて空気供給源15から
の空気が供給されるものであり、空圧油圧変換室24は
その空気の供給に基づいて空圧を油圧に変換し、オイル
27を各油圧室10に向かって圧送するものである。穿
設用ピストン5は、その空圧油圧変換室24からのオイ
ル27の圧送に基づいて往動されるもので、第2図にお
いて矢印Cはその穿設用ピストン5の往動方向を示して
おり、その際下流空気通路20のボート22が大気と連
通されているので、空圧室11の空気は穿設用ピストン
5の往動に伴なって大気に放出さ九ることとなる。空圧
油圧変換室24の空気の圧力は、その空圧油圧変換室2
4に貯溜されているオイル27が各油圧室10に向かっ
て圧送されるに伴なってその空気側の容積が増大するた
めに、その圧送中に空気供給源15の圧力よりも若干低
くなるものであり、パンチ8がワーク9に当接するど、
その当接位置において各穿設用シリンダ5の往動が停止
されるために、空圧油圧変換室24から各油圧室10に
向かってのオイル27の圧送か停止されて、その空圧油
圧変換室24の空気の圧力が空気供給@15が有する空
圧にまで復帰上昇するものである。
The oil storage tank 13 has a pneumatic-hydraulic conversion chamber 24, and the pneumatic-hydraulic conversion chamber 24 is communicated with the air supply source 15 via an air passage 25, a switching valve 18, and a second air passage 19. 26 indicates bows 1 to 1 of the air passage 25, and as shown in FIG. , and is opened to the atmosphere via a switching valve 8. When the switching valve 18 is driven in the direction of arrow B' as shown in FIG. The pneumatic-hydraulic conversion chamber 24 converts pneumatic pressure into hydraulic pressure based on the air supply, and pumps oil 27 toward each hydraulic chamber 10. The drilling piston 5 is moved forward based on the pumping of oil 27 from the pneumatic-hydraulic conversion chamber 24, and in FIG. 2, arrow C indicates the forward movement direction of the drilling piston 5. At this time, since the boat 22 of the downstream air passage 20 is communicated with the atmosphere, the air in the pneumatic chamber 11 is discharged to the atmosphere as the drilling piston 5 moves forward. The air pressure in the pneumatic-hydraulic conversion chamber 24 is
As the oil 27 stored in 4 is pumped toward each hydraulic chamber 10, the volume on the air side increases, so that the pressure becomes slightly lower than the pressure of the air supply source 15 during the pumping. When the punch 8 comes into contact with the workpiece 9,
Since the forward movement of each drilling cylinder 5 is stopped at the contact position, the pressure feeding of the oil 27 from the pneumatic-hydraulic conversion chamber 24 toward each hydraulic chamber 10 is stopped, and the pneumatic-hydraulic conversion is stopped. The pressure of the air in the chamber 24 returns to the air pressure possessed by the air supply @15.

増圧用シリンダ装[116は、油室28ど空圧室29ど
を備えており、増圧用ピストン17はピストンロッド3
0とピストン本体31とから大略構成されており。
The pressure increasing cylinder unit [116 is equipped with an oil chamber 28, a pneumatic chamber 29, etc., and the pressure increasing piston 17 is connected to the piston rod 3.
0 and a piston body 31.

空圧室29はそのピストン本体31によって復動用空圧
室32と往動用空圧室33どの2室に画成されている。
The pneumatic chamber 29 is defined by the piston body 31 into two chambers: a backward pneumatic chamber 32 and a forward pneumatic chamber 33 .

ピストンロッド17は油室28に向かって延びる構成と
され、ビス1ヘンロツド17の径はピストン本体31の
径よりも小径とされ、油室28はオイル通路−12の途
中に設けられて、オイル通路12はその油室28を境に
その」二流側が上流オイル通路34とされ、その下流側
が下流オイル通路35とされていて、その上流オイル通
路34の下流端が油室28に向かって開口する構成とさ
れており、36はその開口を示している。第2図に示す
ように、増圧用ピストン17が復帰位置にあるどきには
、開口36が開成されて油室28と空圧油圧変換室24
とは連通状態にある。
The piston rod 17 is configured to extend toward an oil chamber 28, the diameter of the screw 1 rod 17 is smaller than the diameter of the piston body 31, and the oil chamber 28 is provided in the middle of the oil passage 12, 12 has an oil chamber 28 as a boundary, and has an upstream oil passage 34 on the second stream side and a downstream oil passage 35 on the downstream side, with the downstream end of the upstream oil passage 34 opening toward the oil chamber 28. 36 indicates the opening. As shown in FIG. 2, when the pressure increasing piston 17 is in the return position, the opening 36 is opened and the oil chamber 28 and the pneumatic-hydraulic conversion chamber 24 are opened.
is in communication with.

復動用空圧室32は下流空気通路14に連通されており
、往動用空圧室33は分岐通路37に連通され、38は
その分岐通路37のポー1−を示している。この往動用
空圧室33は、空気供給切換手段としての切換弁39を
介して空気供給通路25に連通されるものとなっており
、ここでは、切換弁39は分岐通路37の途中に設けら
れており、40はポー1−38と連通される空気供給通
路25側のポー1−を示している。
The backward movement pneumatic chamber 32 is communicated with the downstream air passage 14, and the forward movement pneumatic chamber 33 is communicated with a branch passage 37, and 38 indicates a port 1- of the branch passage 37. This forward pneumatic chamber 33 is communicated with the air supply passage 25 via a switching valve 39 as an air supply switching means, and here, the switching valve 39 is provided in the middle of the branch passage 37. 40 indicates the port 1- on the air supply passage 25 side that communicates with the port 1-38.

切換弁39は、空気供給源15の空圧に基づいて、矢印
D−D’方向に駆動されるもので、増圧用ピストン17
が復帰動するどきには、ポー1−38が大気と連通され
て、往動用空圧室33の空気が大気に向かって放出され
るものとなっている。ここでは、空気通路25は分岐通
路37の他に分岐通路41を有しており1分岐通路41
からの空気の供給に基づいて切換弁39が矢印D′方向
に駆動され、」−流空気通路19は分岐通路42を有し
ており、切換弁39は分岐通路42からの空気の供給に
基づいて矢印D′方向に駆動されるもので、空気供給源
15の空圧は、ここでは、5kg/cnfに設定されて
おり、分岐通路42の途中には、調圧弁43が設けられ
ており、切換弁39に加えられる分岐通路42からの空
圧は、空気供給源15が有する空圧よりも若干低い空圧
どされておす、ここではその空圧は4kg/cnfに設
定されており、44はその圧力計を示している。この切
換弁39は、空圧油圧変換室24の空気の圧力復帰上昇
に基づいて分岐通路41の空圧が分岐通路42の空圧よ
りも高(なることに基づいて矢印D′方向に駆動される
もので、分岐通路42の空圧に基づいて切換弁39に加
えられる力よりも分岐通路41の空圧に基づいて加えら
れる力が大きくなるど、切換弁39が駆動されて第3図
に示すようにポー1〜38とポート40とが連通される
ものであり、ポー1−38とポー1〜4゜とが連通され
ると、空気供給源15からの空気が往動用空圧室33に
供給され、増圧用ピストン17が矢印E方向に往動され
て、開口36が閉成され、空圧油圧変換室24から各油
圧室10に向かってのオイル27の圧送が停止されると
共に、油室28のオイルが各油圧室]0に向かって圧送
され、ワーク2にパンチ8か当接した後の各穿設用ピス
トン5の駆動がこの増圧用ビスミーン】7によって行な
わわるものであり、その際、増圧用ピストン17の往動
によって復動用空圧室32の容積が減少し、その復動用
空圧室32の空気は、ポート22か大気と連通されてい
るから下流空気通路14を介して大気に放出されるもの
である。
The switching valve 39 is driven in the direction of arrow DD' based on the pneumatic pressure of the air supply source 15, and is driven in the direction of arrow DD'.
During the return movement, the port 1-38 is communicated with the atmosphere, and the air in the forward movement pneumatic chamber 33 is discharged toward the atmosphere. Here, the air passage 25 has a branch passage 41 in addition to the branch passage 37.
The switching valve 39 is driven in the direction of arrow D' based on the supply of air from the branch passage 42, and the switching valve 39 is driven in the direction of arrow D' based on the supply of air from the branch passage 42. The air pressure of the air supply source 15 is set to 5 kg/cnf here, and a pressure regulating valve 43 is provided in the middle of the branch passage 42. The air pressure applied to the switching valve 39 from the branch passage 42 is slightly lower than the air pressure possessed by the air supply source 15. Here, the air pressure is set to 4 kg/cnf. indicates the pressure gauge. This switching valve 39 is driven in the direction of arrow D' based on the fact that the pneumatic pressure in the branch passage 41 becomes higher than the pneumatic pressure in the branch passage 42 based on the return increase in the pressure of the air in the pneumatic-hydraulic conversion chamber 24. As the force applied to the switching valve 39 based on the pneumatic pressure in the branch passage 41 becomes larger than the force applied to the switching valve 39 based on the pneumatic pressure in the branch passage 42, the switching valve 39 is driven and the state shown in FIG. As shown, ports 1 to 38 and ports 40 are communicated with each other, and when ports 1 to 38 and ports 1 to 4 degrees are communicated, air from the air supply source 15 flows into the forward pneumatic chamber 33. The pressure increasing piston 17 is moved forward in the direction of arrow E, the opening 36 is closed, and the pressure feeding of the oil 27 from the pneumatic-hydraulic conversion chamber 24 toward each hydraulic chamber 10 is stopped. The oil in the oil chamber 28 is pumped toward each hydraulic chamber ]0, and after the punch 8 contacts the workpiece 2, each drilling piston 5 is driven by the pressure increasing bismine ]7, At this time, the volume of the backward-acting pneumatic chamber 32 decreases due to the forward movement of the pressure-increasing piston 17, and the air in the backward-acting pneumatic chamber 32 is transmitted through the downstream air passage 14 because the port 22 is in communication with the atmosphere. It is released into the atmosphere.

各穿設用ピストン5を復帰させるときには、手動スイッ
チ23を矢印C方向ど反対方向に回動させるものであり
、手動スイッチ23を矢印C方向と反対方向に回動させ
ると、切換弁18が矢印B方向に駆動され、ポー1−2
1とポート22が連通されると共にポー1−26が大気
に連通され、空気供給源15の空気が復動用空圧室32
と空圧室1】とに供給され、その空圧に基づいて穿設用
ピストン5ど増圧用ピストン17とが復帰方向に駆動さ
れるものであり、その増圧用ピストン17ど穿設用ピス
トン5との復帰動に基づいて各油圧室10内のオイルが
油室28に返送されるものであり、この油室28に返送
されるオイルの量は、パンチ8がワーク2に当接してが
らワーク2を穿設するまでの間に各穿設用ピストン5を
駆動するために各油圧室10に増圧用ピストン17によ
って圧送したオイル量に相当するものであり、増圧用ピ
ストン17が元の位置に復帰すると開036が開成され
、各穿設用ピストン5はその後も復帰動されるもので、
その復帰に伴なって、オイル通路12を介してオイル貯
溜室27に油圧室10のオイルが返送されるものである
When returning each drilling piston 5, the manual switch 23 is rotated in the direction opposite to the direction of arrow C. When the manual switch 23 is rotated in the direction opposite to the direction of arrow C, the switching valve 18 is rotated in the direction opposite to the direction of arrow C. Driven in direction B, port 1-2
1 and port 22 are communicated with each other, ports 1-26 are communicated with the atmosphere, and air from the air supply source 15 is supplied to the double-acting pneumatic chamber 32.
and the air pressure chamber 1], and based on the air pressure, the drilling piston 5 and the pressure increasing piston 17 are driven in the return direction, and the pressure increasing piston 17 and the drilling piston 5 The oil in each hydraulic chamber 10 is returned to the oil chamber 28 based on the return movement of the punch 8 and the workpiece 2. This amount corresponds to the amount of oil that is pumped into each hydraulic chamber 10 by the pressure increasing piston 17 to drive each drilling piston 5 until the pressure increasing piston 17 is returned to its original position. When it returns, the opening 036 is opened, and each drilling piston 5 is moved back thereafter.
Upon its return, the oil in the hydraulic chamber 10 is returned to the oil storage chamber 27 via the oil passage 12.

以、L実施例について説明したが、本発明はこれに限ら
ず以下のものをも含むものである。
Although the L embodiment has been described above, the present invention is not limited to this, but also includes the following.

(f)実施例においては、空気供給源15からの空気の
供給に基づいて各穿設用シリンダ5と増圧用ピストン1
7とを復帰させる構成としたが、空気の供給を利用しな
くとも各空圧室11に復帰スプリングを設けると共に復
動用空圧室32に復帰スプリングを設ける構成として増
圧用ピストン17と穿設用ピストン5どを復帰させる構
成とすることもできる。
(f) In the embodiment, each drilling cylinder 5 and the pressure increasing piston 1 are
7, but a configuration in which a return spring is provided in each pneumatic chamber 11 and a return spring is provided in the double-acting pneumatic chamber 32 without using air supply allows the pressure increase piston 17 and the drilling It is also possible to have a configuration in which the piston 5 is returned to its original position.

(?)実施例においては、切換弁39を空気供給通路4
2に供給される空圧に基づいて矢印り方向にイ」勢する
構成としたが、これに限らず、例えばスプリングを使用
して矢印り方向に付勢する構成とすることもできる。
(?) In the embodiment, the switching valve 39 is connected to the air supply passage 4.
Although the configuration has been described in which the air pressure is applied to the air pressure supplied to the cylinder 2, the configuration is not limited to this, and a configuration in which a spring is used, for example, can be used to bias the housing in the direction of the arrow.

発明の詳細 な説明したように、本発明によれば、空圧油圧変換室か
ら各シリンダ室に向かってのオイルの圧送と増圧用シリ
ンダ装置の油室から各シリンダ室に向かってのオイルの
圧送との切換えを、パンチがワークに当接することに基
づく空圧油圧変換室の空気の圧力復帰上昇に伴なって行
なうようにしたから、増圧用シリンダ装置の駆動タイミ
ングを正確にとることができるという効果を奏し、電気
的制御によって空圧油圧変換室から各シリンダ室に向か
ってのオイルの圧送と増圧用シリンダ装置の油室から各
シリンダ室に向かってのオイルの圧送との切換タイミン
グを行なわなくともそれぞれができることとなるので、
その構成も簡単なものとなる。
As described in detail, according to the present invention, oil is pressurized from the pneumatic-hydraulic conversion chamber toward each cylinder chamber, and oil is pressurized from the oil chamber of the pressure boosting cylinder device toward each cylinder chamber. Since the changeover is made in accordance with the pressure return and rise of the air in the pneumatic-hydraulic conversion chamber when the punch comes into contact with the workpiece, it is possible to accurately drive the pressure boosting cylinder device. This is effective and eliminates the need for electrical control to change the timing between the pressure feeding of oil from the pneumatic-hydraulic conversion chamber toward each cylinder chamber and the pressure feeding of oil from the oil chamber of the pressure boosting cylinder device toward each cylinder chamber. Both can be done individually, so
Its configuration is also simple.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明に係る穿孔装置の復帰状態を示す断面構
成図、第2図は本発明に係る穿孔装置のパンチがワーク
に当接した状態を示す断面構成図、第3図は本発明に係
る穿孔装置の穿孔完了状態を示す断面構成図である。 2・・ワーク、 3・・・穿孔用シリンダ装置、5・・
・穿設用ビストン、8・・・バ〉′チ、10・・油圧室
、 12・・・オイル通路、13・・・オイル貯溜タン
ク(空圧油圧変換手段)、15・・空気供給源、16・
・・増圧用シリンダ装置。 17・・・増圧用ピストン、24・・・空圧油圧変換室
、25・空気供給通路、 27・・・オイル、28・・
油室、 37・・・分岐通路、39・切換弁(空気供給
切換手段)。
FIG. 1 is a cross-sectional configuration diagram showing the returning state of the punching device according to the present invention, FIG. 2 is a cross-sectional configuration diagram showing the state in which the punch of the punching device according to the present invention is in contact with a workpiece, and FIG. 3 is a cross-sectional configuration diagram showing the punch of the punching device according to the present invention FIG. 2 is a cross-sectional configuration diagram showing a state of completion of drilling of the drilling device according to the present invention. 2... Workpiece, 3... Cylinder device for drilling, 5...
- Piston for drilling, 8...Batch, 10...Hydraulic chamber, 12...Oil passage, 13...Oil storage tank (pneumatic-hydraulic conversion means), 15...Air supply source, 16.
...Cylinder device for pressure increase. 17... Pressure increase piston, 24... Air pressure hydraulic conversion chamber, 25... Air supply passage, 27... Oil, 28...
Oil chamber, 37... Branch passage, 39. Switching valve (air supply switching means).

Claims (1)

【特許請求の範囲】 シリンダ室を往復動する穿設用ピストンにワーク穿孔用
のパンチが取り付けられている複数個の穿孔用シリンダ
装置と。 前記各シリンダ室にオイル通路を介して連通されると共
に分岐通路を有する空気通路を介して空気供給源に連通
されて空圧を油圧に変換する空圧油圧変換室を有し、前
記空気供給源からの空気供給に基づいてオイルを前記各
シリンダ室に圧送して前記各穿設用ピストンを前記ワー
クに向かって往動させると共に、その各穿設用ピストン
の復帰動に伴なって前記各シリンダ室のオイルが前記空
圧油圧変換室に返送される空圧油圧変換手段と、前記各
シリンダ室に前記オイル通路を介して連通される油室と
前記油室のオイルを前記各シリンダ室に向かって圧送す
る増圧用ピストンと前記分岐通路を介して前記空気供給
源に連通される空圧室とを有し、前記ワークに前記パン
チが当接した後に前記増圧用ピストンが駆動されて、前
記空圧油圧変換室から前記各シリンダ室に向かってのオ
イルの圧送を止めると共に前記油室のオイルを前記各シ
リンダ室に向かって圧送する増圧用シリンダ装置と、 前記増圧シリンダ装置の空圧室に連通される分岐通路に
設けられ、前記パンチが前記ワークに当接することに基
づく前記空圧油圧変換室の空気の圧力復帰上昇に伴なっ
て前記増圧シリンダ装置の空圧室へ前記空気供給源の空
気が供給されるように駆動されると共に、穿孔完了後に
該増圧シリンダ装置の空圧室の空気が放出されるように
駆動されて、前記増圧シリンダ装置の空圧室に対する前
記空気供給源からの空気の供給切換えを行なう空気供給
切換手段と、を備えていることを特徴とする穿孔装置。
[Scope of Claim] A plurality of drilling cylinder devices in which a punch for drilling a workpiece is attached to a drilling piston that reciprocates in a cylinder chamber. a pneumatic-hydraulic conversion chamber communicating with each of the cylinder chambers via an oil passage and communicating with an air supply source via an air passage having a branch passage to convert pneumatic pressure into hydraulic pressure; Oil is forced into each cylinder chamber based on the air supply from the cylinder chamber to move each drilling piston forward toward the workpiece, and as the drilling piston returns, the oil is forced into each cylinder chamber. a pneumatic-hydraulic converting means for returning oil in the pneumatic-hydraulic converting chamber to the pneumatic-hydraulic converting chamber; an oil chamber communicating with each of the cylinder chambers via the oil passage; and a pneumatic chamber that communicates with the air supply source via the branch passage, and after the punch comes into contact with the workpiece, the pressure increasing piston is driven to supply the air. a pressure boosting cylinder device that stops pressure feeding of oil from the pressure-hydraulic conversion chamber toward each of the cylinder chambers and force-feeds oil in the oil chamber toward each of the cylinder chambers; and a pneumatic chamber of the pressure boosting cylinder device. The air supply source is provided in a communicating branch passage and is supplied to the pneumatic chamber of the pressure boosting cylinder device as the pressure of the air in the pneumatic-hydraulic conversion chamber increases due to the punch coming into contact with the workpiece. The air is supplied to the pneumatic chamber of the pressure intensifying cylinder device, and the air in the pneumatic chamber of the pressure intensifying cylinder device is discharged after drilling is completed, so that the air is supplied to the pneumatic chamber of the pressure intensifying cylinder device. 1. A perforation device comprising: air supply switching means for switching the supply of air from a source.
JP10749484A 1984-05-29 1984-05-29 Piercing equipment Granted JPS60250829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10749484A JPS60250829A (en) 1984-05-29 1984-05-29 Piercing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10749484A JPS60250829A (en) 1984-05-29 1984-05-29 Piercing equipment

Publications (2)

Publication Number Publication Date
JPS60250829A true JPS60250829A (en) 1985-12-11
JPH0140694B2 JPH0140694B2 (en) 1989-08-30

Family

ID=14460631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10749484A Granted JPS60250829A (en) 1984-05-29 1984-05-29 Piercing equipment

Country Status (1)

Country Link
JP (1) JPS60250829A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139471A (en) * 1974-10-01 1976-04-02 Shigeo Kasai PURESUKIKAI
JPS566738A (en) * 1979-06-30 1981-01-23 Toshio Tsutsumi Press device of rod for constituting baby car

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139471A (en) * 1974-10-01 1976-04-02 Shigeo Kasai PURESUKIKAI
JPS566738A (en) * 1979-06-30 1981-01-23 Toshio Tsutsumi Press device of rod for constituting baby car

Also Published As

Publication number Publication date
JPH0140694B2 (en) 1989-08-30

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