JPH0123720Y2 - - Google Patents

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Publication number
JPH0123720Y2
JPH0123720Y2 JP9432784U JP9432784U JPH0123720Y2 JP H0123720 Y2 JPH0123720 Y2 JP H0123720Y2 JP 9432784 U JP9432784 U JP 9432784U JP 9432784 U JP9432784 U JP 9432784U JP H0123720 Y2 JPH0123720 Y2 JP H0123720Y2
Authority
JP
Japan
Prior art keywords
workpiece
sleeve
detection
shaft
pressing
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
Application number
JP9432784U
Other languages
Japanese (ja)
Other versions
JPS619234U (en
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 filed Critical
Priority to JP9432784U priority Critical patent/JPS619234U/en
Publication of JPS619234U publication Critical patent/JPS619234U/en
Application granted granted Critical
Publication of JPH0123720Y2 publication Critical patent/JPH0123720Y2/ja
Granted legal-status Critical Current

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  • Machine Tool Sensing Apparatuses (AREA)
  • Feeding Of Workpieces (AREA)

Description

【考案の詳細な説明】 産業上の利用分野 この考案は異種工作物の端面研削を行なう場合
に所定の工作物であるか、またそれが正しくチヤ
ツクに装着されたかを確認する装置を有するロー
ダに関する。
[Detailed description of the invention] Industrial application field This invention relates to a loader having a device for checking whether the workpiece is the specified workpiece and whether it is correctly attached to the chuck when performing end face grinding of a different type of workpiece. .

従来技術 従来異なつた巾の工作物の端面研削を行なう場
合に把持すべき工作物を間違えたときには研削面
が所定位置にこず砥石が工作物と衝突して破損
し、また工作物が傾いて取付けられた場合は研削
量が1回転中で変化して砥石を破損したり寸法精
度がでなくて工作不良となる場合があるために、
この対策として工作物がチヤツクの基準面に正し
く着座しているか或いは正規寸法の工作物が取付
けられたかを検出する手段をローダに設けたもの
が本出願人によつて、特願昭59−24379号として
先に提案しており、第3,4図に示すような把持
部付の押付板1に工作物が把持されその工作物2
がチヤツクのチヤツクストツパ3に傾斜して着座
していると押付板1とスリーブ4の端面とに隙間
が生じノズル5から空気が噴出してソース圧が低
下し圧力スイツチ6が作動する。また工作物2の
巾が設定値より薄いとスリーブ4の動き可能量と
押付軸7の動き可能量との差により同様にノズル
5より空気が噴出して圧力スイツチ6が作動して
不良状態を知らせる。また工作物巾が正規より厚
いとローダ軸8の動き量不足で規定位置で作用さ
せるリミツトスイツチLS1が作動しないことか
ら不良を検出させるようになしている。
Prior Art Conventionally, when grinding the end face of workpieces of different widths, if the wrong workpiece is to be gripped, the grinding surface may not be in the specified position, the grinding wheel may collide with the workpiece and be damaged, or the workpiece may be tilted. If it is installed, the amount of grinding may change during one rotation, which may damage the grinding wheel or result in poor dimensional accuracy and machining defects.
As a countermeasure to this problem, the present applicant proposed a device in which the loader is equipped with a means for detecting whether the workpiece is properly seated on the reference surface of the chuck or whether a workpiece of the regular size is attached. As shown in Figs. 3 and 4, a workpiece is gripped by a pressing plate 1 with a gripping part, and the workpiece 2 is
When the chuck is seated at an angle on the chuck stopper 3 of the chuck, a gap is created between the pressing plate 1 and the end face of the sleeve 4, air is ejected from the nozzle 5, the source pressure is lowered, and the pressure switch 6 is activated. Furthermore, if the width of the workpiece 2 is thinner than the set value, the difference between the movable amount of the sleeve 4 and the movable amount of the pressing shaft 7 causes air to similarly be ejected from the nozzle 5, which activates the pressure switch 6 and prevents a defective state. Inform. Furthermore, if the width of the workpiece is thicker than the standard width, the limit switch LS1, which operates at the specified position, will not operate due to insufficient movement of the loader shaft 8, so that a defect is detected.

本考案が解決しようとする問題点 しかしこのものは、グリツパ部分がローダ軸よ
り長いアームの先端に取付けられているため、工
作物が規定の巾より長い場合にアーム部分の撓み
によつてローダ軸は長い分手前の途中で止まらず
規定位置迄動き規定長さのときの作動するリミツ
トスイツチLS1を作動して正確な検出ができな
いという問題が発生した。
Problems to be Solved by the Present Invention However, with this device, the gripper part is attached to the tip of an arm that is longer than the loader shaft, so if the workpiece is longer than the specified width, the loader shaft will be affected by the bending of the arm part. Due to the length of the length, the length did not stop midway and moved to the specified position, causing the limit switch LS1, which is activated when the specified length is reached, to be activated, making accurate detection impossible.

問題点を解決するための手段 チヤツク軸と平行に移動可能なローダアーム1
1の先端に設けられた取付筒13に軸方向にスリ
ーブ22を移動可能に嵌装し、ばね24によつて
スリーブ22をチヤツク側に突出するように付勢
し、該スリーブ22に工作物把持部30aを有す
る押付板30を設けた押付軸25を摺動可能に挿
通し、この押付軸25をチヤツク側へ突出するよ
うにエアシリンダ装置で付勢し、スリーブ22の
端面に押付板30に対向してノズル34を開口せ
しめ、更に取付筒13に設けた検出筒17にノズ
ル38又は及び43を開口した検知面17e又は
及び17gを設けこの面に対向し押付軸25の移
動で変位される検出カラー19又は及び41をば
ね21又は及び42によつて検知面17e又は及
び17gに密着するようにし、押付板30とスリ
ーブ22の間に生じた隙間または検知面17e又
は及び17gと検知カラー19又は及び41との
間に生じた隙間によつてノズル38又は及び43
からエアが噴出することによつてエアソース中の
圧力変化を圧力スイツチ36で検出するようにな
したものである。
Means to solve the problem Loader arm 1 movable parallel to the chuck axis
A sleeve 22 is fitted so as to be movable in the axial direction in the mounting tube 13 provided at the tip of the sleeve 22, and a spring 24 urges the sleeve 22 to protrude toward the chuck. A pressing shaft 25 provided with a pressing plate 30 having a portion 30a is slidably inserted through the pressing shaft 25, and the pressing shaft 25 is urged by an air cylinder device so as to protrude toward the chuck. A detection surface 17e or 17g with a nozzle 38 or 43 opened is provided on the detection tube 17 provided in the mounting tube 13, and is opposed to this surface and is displaced by movement of the pressing shaft 25. The detection collar 19 or 41 is brought into close contact with the detection surface 17e or 17g by the spring 21 or 42, and the gap created between the pressing plate 30 and the sleeve 22 or the detection surface 17e or 17g and the detection collar 19 or and 41 due to the gap created between nozzle 38 or and 43
The pressure switch 36 detects the pressure change in the air source by the air being ejected from the air source.

作 用 請求の範囲(1)の考案では工作物のローデイング
の途中で、請求の範囲(2)の考案ではローデイング
で工作物をストツパに当接したとき圧力空気を送
るように切換弁を開く。ローダアームによつて搬
送された工作物がチヤツクのストツパ37に傾斜
して当接されると押付板30が傾斜してスリーブ
22との間に隙間が生じノズル34から空気が噴
出されるためソースの圧力が低下して圧力スイツ
チ36が検出信号を出力する。また工作物の巾が
規定より薄いとローダが所定位置に停止しスリー
ブ22と押付軸25との制限された動き量の差に
よつて同様に隙間が出じてノズル34から空気を
噴出するか、或いはローダの所定位置の停止に対
して押付軸25がチヤツク側に規定以上に移動し
押付軸25が検出カラー41を移動させてノズル
43より空気を噴出しソースの圧力低下で圧力ス
イツチ36が検出信号を出力する。更に工作物の
巾が規定より厚いとローダが押付軸25の正規の
移動量より多く押し込められ押付軸25が検出カ
ラー19を移動させて検知面17eに隙間が生じ
ノズル38から空気が噴出してソースの圧力低下
を圧力スイツチ36が検出信号を出力するもので
ある。
Operation: In the device set forth in claim (1), the switching valve is opened during loading of the workpiece, and in the device set forth in claim (2), when the workpiece contacts the stopper during loading, the switching valve is opened to send pressurized air. When the workpiece carried by the loader arm comes into contact with the stopper 37 of the chuck at an angle, the pressing plate 30 is inclined and a gap is created between the workpiece and the sleeve 22, and air is ejected from the nozzle 34. The pressure decreases and the pressure switch 36 outputs a detection signal. Also, if the width of the workpiece is thinner than the specified width, the loader will stop at a predetermined position, and due to the difference in the limited movement between the sleeve 22 and the pressing shaft 25, a gap will similarly appear and air will be ejected from the nozzle 34. Or, when the loader stops at a predetermined position, the pressing shaft 25 moves toward the chuck side beyond the specified limit, and the pressing shaft 25 moves the detection collar 41 to blow out air from the nozzle 43 and the pressure switch 36 is activated due to a drop in source pressure. Outputs a detection signal. Furthermore, if the width of the workpiece is thicker than the specified width, the loader will be pushed in more than the normal movement amount of the pressing shaft 25, and the pressing shaft 25 will move the detection collar 19, creating a gap in the detection surface 17e and causing air to blow out from the nozzle 38. The pressure switch 36 outputs a detection signal to detect a drop in source pressure.

実施例 以下本考案の第1実施例を第1図にもとづき説
明する。アーム11の先端にはアーム11が主軸
前面に旋回したとき主軸々心と一致する位置に円
筒12が熔接等で固着されており、この中心穴に
取付筒13が嵌装され、位置決めボルト14で軸
方向の位置を決め3等分位置のボルト15によつ
て軸心を研削盤の主軸との平行度を取付筒13の
所付座13aに対して調整したあとボルト16に
よつて取付筒13は円筒12に締着されている。
取付筒13は両側が大径13b,13cで途中で
縮径された貫通穴が穿設されており途中の縮径部
13dがエアシリンダとなつている。この貫通穴
の後側の大径穴13cには検出筒17がOリング
を介して気密に取付けられている。検出筒17は
中心両側に大径穴17a,17c中央が縮径穴1
7bである貫通穴が穿設されており、穴17aに
は空気口17dが穿設され、穴17bには長手定
寸ピン18がOリングで空気もれがないように嵌
装され、穴17cには検出カラー19が長手定寸
ピン18に取付けられた蓋体20との間に介装し
たばね21によつて穴17cの底の検知面17e
に密着されて空気口17fと連通し検知面17e
に開口したノズル38を閉じている。そして長手
定寸ピン18の穴17a内の突出量は後述の押付
軸との隙間が規定量になるように調整される。取
付筒13の前側の大径穴13bの中心に奥が大径
22aである段付貫通穴22bを有するスリーブ
22が軸方向に摺動可能に嵌装されている。この
スリーブ22中央部外周に軸方向の溝22cが削
設されていて、取付筒13に螺設したスリーブス
トツパ23で突出量が規制されている。中心の大
径穴22aと取付筒13の縮径部の段との間に圧
縮ばね24が介装されて、スリーブ22を突出方
向に付勢しており、この室の空気抜きの穴13e
が取付筒13に穿設されている。スリーブ22の
貫通穴22bに挿通された工作物の押付軸25の
一部は取付筒13の縮径穴13d内にてOリング
を嵌めたピストン26に形成され、更に細軸25
aとして検出筒17の穴17a内に延在してい
る。細軸25aにはねじが刻設されていてこゝに
ストツパとなるフランジカラー27が調整可能に
螺装されボルトで固定されている。押付軸25の
前端には球体28がボルト29によつて取付けら
れており、スリーブ22端面と密着する端面を有
するグリツパ付押付板30が球体28を受ける球
座31の球面軸受によつてフローテイング構造で
支持されている。押付板30のグリツパ部30a
はボス外周軸方向2位置にOリング32によつて
弾性的にコレツト式スリーブ33が被冠されてい
て工作物の内径を把持するものである。スリーブ
22の前端面22dにはノズル34が円周上に複
数個開口しており円周溝22eを経て空気口22
fと連通している。空気口17d,17f,22
fはともに切換弁35を介して圧力空気源と接続
され、また空気口22f,17fに連なるソース
の圧力を検出する圧力スイツチ36が設けられて
いる。図示しない主軸先端に設けられたダイヤフ
ラムチヤツクには工作物ストツパ37が設けられ
ている。
Embodiment A first embodiment of the present invention will be described below based on FIG. A cylinder 12 is fixed to the tip of the arm 11 by welding or the like in a position that coincides with the center of the main shaft when the arm 11 rotates in front of the main shaft. After determining the axial position and adjusting the parallelism of the shaft center to the main axis of the grinding machine with respect to the mounting seat 13a of the mounting tube 13 using bolts 15 at three equal positions, the mounting tube 13 is fixed using bolts 16. is fastened to the cylinder 12.
The mounting tube 13 has large diameters 13b and 13c on both sides and a through hole with a reduced diameter in the middle, and a reduced diameter part 13d in the middle serves as an air cylinder. A detection tube 17 is airtightly attached to the large diameter hole 13c on the rear side of this through hole via an O ring. The detection tube 17 has large diameter holes 17a and 17c on both sides of the center, and a reduced diameter hole 1 in the center.
A through hole 7b is drilled, an air port 17d is drilled in the hole 17a, a longitudinal length measuring pin 18 is fitted in the hole 17b with an O-ring to prevent air leakage, and a hole 17c is fitted with a longitudinal pin 18 to prevent air leakage. The detection collar 19 is connected to the detection surface 17e at the bottom of the hole 17c by a spring 21 interposed between the detection collar 19 and the lid 20 attached to the longitudinal size pin 18.
The detection surface 17e is in close contact with the air port 17f and communicates with the air port 17f.
The nozzle 38 that was opened to is closed. The amount of protrusion of the longitudinal sizing pin 18 into the hole 17a is adjusted so that the gap between it and the pressing shaft, which will be described later, is a specified amount. A sleeve 22 having a stepped through hole 22b having a large diameter 22a at the back is fitted in the center of the large diameter hole 13b on the front side of the mounting tube 13 so as to be slidable in the axial direction. An axial groove 22c is cut in the outer periphery of the central portion of the sleeve 22, and the amount of protrusion is regulated by a sleeve stopper 23 screwed onto the mounting tube 13. A compression spring 24 is interposed between the central large-diameter hole 22a and the stage of the reduced diameter part of the mounting tube 13, and urges the sleeve 22 in the protruding direction.
is bored in the mounting tube 13. A part of the workpiece pressing shaft 25 inserted into the through hole 22b of the sleeve 22 is formed into a piston 26 fitted with an O-ring in the diameter-reduced hole 13d of the mounting tube 13.
a extends into the hole 17a of the detection tube 17. A thread is cut into the thin shaft 25a, and a flange collar 27, which serves as a stopper, is threaded in an adjustable manner and fixed with a bolt. A spherical body 28 is attached to the front end of the pressing shaft 25 by a bolt 29, and a gripper-equipped pressing plate 30 having an end surface in close contact with the end surface of the sleeve 22 is floated by a spherical bearing of a spherical seat 31 that receives the spherical body 28. supported by the structure. Grip portion 30a of pressing plate 30
Collet-type sleeves 33 are elastically covered by O-rings 32 at two positions in the axial direction of the outer circumference of the boss, and grip the inner diameter of the workpiece. A plurality of nozzles 34 are opened circumferentially on the front end surface 22d of the sleeve 22, and are connected to the air port 22 through the circumferential groove 22e.
It communicates with f. Air ports 17d, 17f, 22
f are both connected to a pressure air source via a switching valve 35, and a pressure switch 36 is provided to detect the pressure of the source connected to the air ports 22f and 17f. A workpiece stopper 37 is provided on a diaphragm chuck (not shown) provided at the tip of the spindle.

この実施例の作用を説明する。 The operation of this embodiment will be explained.

グリツパ30aでテストピース又は正規の工作
物をストツパ37に当接して圧力スイツチ36が
作動しないように押付板30端面とスリーブ22
端面とが密着するようにボルト14,15により
調整しておく。また正規工作物の取付位置でスリ
ーブ22が押し込められて溝22cとスリーブス
トツパ23との隙間m量はごく僅か、本例では1
mmとしこのときフランジストツパ27の前進隙間
n量、本例で1.5mmはn>mの関係であるように
図示しないローダ軸の左行端を決定しておく。ロ
ーダ軸が左行端、アーム11が上位置において、
グリツパ部30aに端面研削すべき例えば歯車素
材が把持されるとローダ軸、アーム11は右行し
図示しないシリンダ装置の作用でローダ軸、アー
ム11が旋回されて工作物は主軸軸線上の下位置
に位置決めされる。次いで図示しないシリンダ装
置でローダ軸が左行され切換弁35が切換えられ
て空気口17d,17f,22fに圧力空気を送
る。アーム11端のグリツパ30aの工作物を押
付板30によつてばね24の圧力及びピストン2
6に作用する押圧力の和でチヤツクのストツパ3
7に当接させる。この場合所定の工作物であつて
ストツパに正しく当接されているときは押付板3
0の端面とスリーブ22の端面22dとは密着状
態にあつてソースは減圧されず圧力スイツチ36
は検出信号を出力しない。またスリーブストツパ
23とスリーブ22の溝22cの隙間mは1mmと
なる。工作物がグリツパ30aに正しく把持され
ないで工作物ストツパ37に傾むいて当接される
と押付板30の端面とスリーブ端面22cとの間
に隙間ができノズル34から空気が噴出するため
ソースは減圧し圧力スイツチ36は取付状態不良
の検出信号を出力する。また工作物ストツパ37
が工作物に適合しないものが取付けられたか、ス
トツパ37に対応する工作物でないものがグリツ
パに把持されている場合、工作物巾が狭いか、ま
たストツパ37が短いとスリーブ22はばね24
の力でスリーブストツパ23に規制される迄m量
即ち1mm押出され、ピストン26に作用する空気
圧によつて押付軸25がn量即ち1.5mm押し出さ
れ、取付板30端面とスリーブ端面22dとの間
はn>mであるためn−m量即ち0.5mmの空隙が
できノズル34から空気が噴出してソース圧は下
がり圧力スイツチ36が検出信号を発する。また
工作物巾が厚いものか、工作物ストツパ37が長
いものが取付けられていればローダ軸は所定位置
に停止されるため押付軸25スリーブ22はばね
24の力に抗して押し込められ長手定寸ピン18
をばね21に抗して押す。このため検出カラー1
9は検出面17eより離れノズル38から空気が
噴出しソースの圧力低下が生じて圧力スイツチ3
6が検出信号を出力して異常を知らせる。
The end surface of the pressing plate 30 and the sleeve 22 are arranged so that the pressure switch 36 does not operate when the gripper 30a abuts a test piece or a regular workpiece against the stopper 37.
Adjust with bolts 14 and 15 so that the end faces are in close contact with each other. In addition, when the sleeve 22 is pushed in at the mounting position of the regular workpiece, the gap m between the groove 22c and the sleeve stopper 23 is very small, and in this example, 1
The left end of the loader shaft (not shown) is determined so that mm and the forward clearance n of the flange stopper 27, which is 1.5 mm in this example, satisfy the relationship n>m. When the loader shaft is at the left end and the arm 11 is in the upper position,
When the gripper portion 30a grips, for example, a gear material to be end-face grounded, the loader shaft and arm 11 move to the right, and the loader shaft and arm 11 are rotated by the action of a cylinder device (not shown), and the workpiece is brought to a lower position on the main shaft axis. is positioned. Next, the loader shaft is moved to the left by a cylinder device (not shown), and the switching valve 35 is switched to send pressurized air to the air ports 17d, 17f, and 22f. The workpiece of the gripper 30a at the end of the arm 11 is pressed against the workpiece by the pressure of the spring 24 and the piston 2.
The chuck stopper 3 is the sum of the pressing forces acting on 6.
7. In this case, if the workpiece is a predetermined workpiece and is in correct contact with the stopper, the pressing plate 3
The end face of the sleeve 22 and the end face 22d of the sleeve 22 are in close contact with each other, so the source is not depressurized and the pressure switch 36
does not output a detection signal. Further, the gap m between the sleeve stopper 23 and the groove 22c of the sleeve 22 is 1 mm. If the workpiece is not gripped correctly by the gripper 30a and comes into contact with the workpiece stopper 37 at an angle, a gap will be created between the end face of the pressing plate 30 and the sleeve end face 22c, and air will be ejected from the nozzle 34, causing the source to be depressurized. However, the pressure switch 36 outputs a detection signal indicating a poor installation condition. Also, the workpiece stopper 37
If the gripper does not fit the workpiece, or if the gripper grips a workpiece that does not correspond to the stopper 37, the workpiece width is narrow, or the stopper 37 is short, the sleeve 22 will not fit the spring 24.
The force pushes out m amount, that is, 1 mm, until it is regulated by the sleeve stopper 23, and the pressing shaft 25 is pushed out by n amount, that is, 1.5 mm, by the air pressure acting on the piston 26, and the end surface of the mounting plate 30 and the sleeve end surface 22d Since n>m, a gap of n-m, that is, 0.5 mm is created, air is ejected from the nozzle 34, the source pressure decreases, and the pressure switch 36 issues a detection signal. In addition, if the workpiece width is thick or the workpiece stopper 37 is long, the loader shaft will be stopped at a predetermined position, and the pressing shaft 25 and sleeve 22 will be pushed in against the force of the spring 24 and the longitudinal direction will be fixed. Dimension pin 18
Push against the spring 21. Therefore, detection color 1
9 is away from the detection surface 17e and air is ejected from the nozzle 38, causing a drop in source pressure and the pressure switch 3
6 outputs a detection signal to notify an abnormality.

次に本考案の第2実施例を第2図にもとづき説
明する。同一部分については同一符号を付して説
明を省略する。取付筒13の貫通穴は順に後側に
小径となる穴13m,13n,13pとなる貫通
穴が穿設され、穴13nがエアシリンダを形成し
こゝに空気口13gと連通する穴が開口してい
る。検出筒17は取付筒13の後側にいんろうに
よつて嵌着されボルトで固定され、穴17aの底
が穴17cの底の検知面17eと同様に検知面1
7gに形成され、検出カラー41が取付筒13と
の間に介装したばね42によつて圧着され空気口
17fと通じるノズル43の口を閉じている。押
付軸25のピストン26に続く細軸25bは取付
筒13の小径穴13pを貫通し更に検出カラー4
1,19及び蓋体20の中心を貫通しており、軸
25bに嵌装され軸端のねじに位置調整可能に螺
装されていて中央に検出カラー19,41の間隔
より工作物の取代+0.1mm分狭いフランジ部を有
するブツシユ44がナツト45にて固着されてい
る。ブシユ44の外端にはねじが刻設されており
ダブルナツト46の位置を変更して蓋体20端と
の隙間を調整しローダが工作物を把持して搬送中
の押付軸25の前進端を規定している。スリーブ
22は取付筒13の直角に植設したピン47で回
り止めされている。
Next, a second embodiment of the present invention will be described based on FIG. Identical parts are given the same reference numerals and explanations will be omitted. The through holes of the mounting tube 13 are sequentially drilled toward the rear with holes 13m, 13n, and 13p having smaller diameters, and the hole 13n forms an air cylinder, and a hole communicating with the air port 13g is opened therein. ing. The detection tube 17 is fitted to the rear side of the mounting tube 13 with a dowel and fixed with bolts, and the bottom of the hole 17a is connected to the detection surface 1 in the same way as the detection surface 17e at the bottom of the hole 17c.
7g, and the detection collar 41 is pressed against the mounting tube 13 by a spring 42 to close the mouth of the nozzle 43 communicating with the air port 17f. The thin shaft 25b of the pressing shaft 25 following the piston 26 passes through the small diameter hole 13p of the mounting tube 13 and further passes through the detection collar 4.
1, 19 and the center of the lid body 20, is fitted onto the shaft 25b, and is screwed onto a screw at the end of the shaft so that its position can be adjusted. A bush 44 having a flange portion narrowed by .1 mm is fixed with a nut 45. A screw is carved into the outer end of the bush 44, and the position of the double nut 46 is changed to adjust the gap between the bush 44 and the end of the cover body 20. stipulated. The sleeve 22 is prevented from rotating by a pin 47 installed at right angles to the mounting tube 13.

次いてこの実施例の作用を説明する。ローデイ
ングの途中では圧力空気を送らずに、工作物がス
トツパ37に当接された時すなわちローダ軸の左
行端検出信号により切換弁35を切換えて圧力空
気を送るようにしておく。ローデイングによつ
て、工作物がチヤツクストツパ37面に傾斜して
着座されたとき押付板30とスリーブ22端との
間に隙間が生じ、ノズル34の口が開いてソース
圧の低下により圧力スイツチ36が異常を検出す
る。工作物の巾が規定より長いとき或いはチヤツ
クストツパ37が長いときローダは所定位置に位
置決めされているためばね24の力に抗してスリ
ーブ22及び押付軸25を押し込み、先端の細軸
25b及び一体のブシユ44のフランジ部におい
て工作物の巾の規定量より長い分だけ検出カラー
19を押すため検知面17eとの間に隙間が生
じ、ノズル38の口が開いて空気を噴出しソース
圧低下を圧力スイツチ36により異常を検出す
る。また工作物の巾が規定より短いとき或いはチ
ヤツクストツパ37が短いときはばね24の力で
スリーブ22を介して押されている押付軸が規定
量より多く移動するため細軸25b上のブシユ4
4のフランジ部が検出カラー41をばね42の力
に抗して引きノズル43の口を開いて空気を噴出
し、ソース圧低下を圧力スイツチ36によつて異
常を検出するものである。
Next, the operation of this embodiment will be explained. During loading, pressurized air is not sent, but when the workpiece comes into contact with the stopper 37, that is, in response to a leftward end detection signal of the loader shaft, the switching valve 35 is switched to send pressurized air. When the workpiece is seated at an angle on the chuck stopper 37 surface due to loading, a gap is created between the pressing plate 30 and the end of the sleeve 22, the mouth of the nozzle 34 is opened, and the pressure switch 36 is turned on due to the drop in source pressure. Detect anomalies. When the width of the workpiece is longer than the specified width or when the chuck stopper 37 is long, the loader is positioned at a predetermined position, so the sleeve 22 and pressing shaft 25 are pushed in against the force of the spring 24, and the thin shaft 25b at the tip and the integral Since the detection collar 19 is pushed by an amount longer than the specified width of the workpiece at the flange portion of the bush 44, a gap is created between the detection collar 19 and the detection surface 17e, and the mouth of the nozzle 38 opens to blow out air and reduce the source pressure drop. An abnormality is detected by the switch 36. In addition, when the width of the workpiece is shorter than the specified width or when the chuck stopper 37 is short, the pressing shaft pushed through the sleeve 22 by the force of the spring 24 moves more than the specified amount, so that the bush 4 on the thin shaft 25b
The flange portion 4 pulls the detection collar 41 against the force of the spring 42 to open the mouth of the nozzle 43 and blow out air, and the pressure switch 36 detects a drop in source pressure as an abnormality.

効 果 以上詳述したように本考案は工作物を把持する
押付板の傾斜によつてスリーブ端面との間に生じ
た隙間でもつて検出するようにし、また検知面と
検出カラーとの隙間によつて工作物巾の異常を検
出するようになしたのでチヤツキング時の着座不
良並びに同種工作物で寸法公差から大きく外れて
いるもの或いは異種工作物の判別を行なうことが
でき、製品の加工不良、砥石の破損を未然に防止
できる効果を有する。
Effects As detailed above, the present invention detects even the gap created between the pressing plate that grips the workpiece and the end face of the sleeve due to the inclination, and also detects the gap between the detection surface and the detection collar. Since it is now possible to detect abnormalities in the width of the workpiece, it is possible to detect improper seating during chucking, as well as workpieces of the same type that deviate greatly from the dimensional tolerance, or workpieces of different types. This has the effect of preventing damage to the product.

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

第1図は本考案のローダアーム端の縦断面図、
第2図は同じく他の実施例の縦断面図、第3図は
従来のローダ軸部分の説明断面図、第4図は従来
のローダアーム端の縦断面図である。 11…アーム、17…検出筒、19,41…検
出カラー、22…スリーブ、25…押付軸、30
…押付板、34,38,43…ノズル、36…圧
力スイツチ。
Figure 1 is a longitudinal sectional view of the end of the loader arm of the present invention.
FIG. 2 is a longitudinal cross-sectional view of another embodiment, FIG. 3 is an explanatory cross-sectional view of a conventional loader shaft portion, and FIG. 4 is a vertical cross-sectional view of the end of a conventional loader arm. 11... Arm, 17... Detection tube, 19, 41... Detection collar, 22... Sleeve, 25... Pressing shaft, 30
...Press plate, 34, 38, 43... Nozzle, 36... Pressure switch.

Claims (1)

【実用新案登録請求の範囲】 (1) チヤツク軸と平行に移動可能なローダアーム
先端に設けられた取付筒部材と、該取付筒部材
に軸方向に移動可能に嵌装されたスリーブと、
該スリーブを突出方向に付勢する弾圧部材と、
前記スリーブに遊嵌し軸方向に移動可能な工作
物押付軸と、該押付軸先端に設けた工作物把持
部を有する押付板と、前記押付軸を突出方向に
付勢する流体圧手段と、前記スリーブ端面に前
記押付板に向けて開口したエアノズルと、前記
取付筒部材に設けられエアノズルを軸方向に開
口した検知面と、前記押付軸の所定量以上の移
動によつて該検知面より離されるように軸方向
に移動可能に設けられた検出カラーと、該検出
カラーを前記検知面に密着させる弾圧部材と、
前記スリーブ端面と前記押付板の端面との間若
しくは前記検知面と前記検出カラーとの間に隙
間が発生したとき前記エアノズルからの空気噴
出によるソースの圧力低下を検出する圧力検出
手段とを備えてなることを特徴とする工作物確
認装置付ローダ。 (2) 前記検知面は平行な2面よりなり前記検出カ
ラー及び前記弾圧部材はそれぞれ2個よりな
り、前記検出カラーは前記押付軸の互いに反対
方向の移動によつて変位させられる実用新案登
録請求の範囲第1項記載の工作物確認装置付ロ
ーダ。
[Scope of Claim for Utility Model Registration] (1) A mounting cylinder member provided at the tip of a loader arm that is movable in parallel to the chuck shaft, a sleeve fitted into the mounting cylinder member so as to be movable in the axial direction,
an elastic member that urges the sleeve in a protruding direction;
a workpiece pressing shaft that loosely fits into the sleeve and is movable in the axial direction; a pressing plate having a workpiece grip provided at the tip of the pressing shaft; and fluid pressure means for biasing the pressing shaft in the projecting direction; an air nozzle opened toward the pressing plate on the end face of the sleeve; a sensing surface provided on the mounting cylinder member with the air nozzle opened in the axial direction; a detection collar that is movable in the axial direction so that the detection collar is moved in the axial direction;
pressure detection means for detecting a drop in source pressure due to air jetting from the air nozzle when a gap occurs between the sleeve end face and the end face of the pressing plate or between the detection surface and the detection collar; A loader with a workpiece confirmation device. (2) A claim for registration of a utility model, in which the detection surface is made up of two parallel surfaces, the detection collar and the pressing member are each made up of two pieces, and the detection collar is displaced by movement of the pressing shaft in mutually opposite directions. A loader with a workpiece confirmation device as described in item 1.
JP9432784U 1984-06-23 1984-06-23 Loader with workpiece confirmation device Granted JPS619234U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9432784U JPS619234U (en) 1984-06-23 1984-06-23 Loader with workpiece confirmation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9432784U JPS619234U (en) 1984-06-23 1984-06-23 Loader with workpiece confirmation device

Publications (2)

Publication Number Publication Date
JPS619234U JPS619234U (en) 1986-01-20
JPH0123720Y2 true JPH0123720Y2 (en) 1989-07-20

Family

ID=30652785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9432784U Granted JPS619234U (en) 1984-06-23 1984-06-23 Loader with workpiece confirmation device

Country Status (1)

Country Link
JP (1) JPS619234U (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0756378B2 (en) * 1989-02-10 1995-06-14 宇部興産株式会社 Fuel dispersion supply system for fluidized bed boiler
JPH0792223B2 (en) * 1989-02-23 1995-10-09 宇部興産株式会社 Fuel dispersion supply system for fluidized bed boiler

Also Published As

Publication number Publication date
JPS619234U (en) 1986-01-20

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