JPH0117775B2 - - Google Patents
Info
- Publication number
- JPH0117775B2 JPH0117775B2 JP56156779A JP15677981A JPH0117775B2 JP H0117775 B2 JPH0117775 B2 JP H0117775B2 JP 56156779 A JP56156779 A JP 56156779A JP 15677981 A JP15677981 A JP 15677981A JP H0117775 B2 JPH0117775 B2 JP H0117775B2
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- conveyor
- clamp
- processing machine
- clamps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
- Control Of Conveyors (AREA)
- Press Drives And Press Lines (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Description
【発明の詳細な説明】
本発明は加工物の搬送装置、さらに詳しくは、
加工物の搬送方向に沿つて加工機の前後に夫々第
１コンベアと第２コンベアが配設され、第１コン
ベアから第２コンベアに向かつて搬送される加工
物を第１コンベアと第２コンベアとに跨がつて保
持することにより、加工物を加工機で加工する位
置に位置決めする搬送装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece conveying device, more specifically,
A first conveyor and a second conveyor are respectively disposed before and after the processing machine along the conveyance direction of the workpiece. The present invention relates to a conveyance device that positions a workpiece at a position to be processed by a processing machine by holding the workpiece astride the workpiece.
従来のこの種の加工物の搬送装置は、第１図に
示すように、加工機２の前後に夫々第１コンベア
３と第２コンベア４とを配設し、両コンベア３，
４上に加工物１を載せて第１コンベア３から第２
コンベア４に向かつて加工物１を搬送しているも
のであつた。ところで、このようにコンベア３，
４で搬送しながら加工物１を加工する場合には、
加工物１の加工されるべき位置が加工機２を通過
したときに、コンベア３，４を停止して加工物１
を一旦その位置に止め、加工機２で加工した後、
再びコンベア３，４を作動させて加工物１を搬送
する必要がある。このような動作をすると、停止
時、始動時に加工物１の慣性で加工物１がコンベ
ア３，４上を滑べり、従来の搬送装置では加工物
１の加工されるべき位置を加工機２の位置と正確
に対応させることが困難であつた。加工物１の搬
送速度を速くする程、位置ずれが多くなるもので
あり、搬送速度に限界があり、従来の装置では搬
送速度を速くすることができなかつたものである
から、生産速度が遅いものであつた。 As shown in FIG. 1, a conventional workpiece conveyance device of this type has a first conveyor 3 and a second conveyor 4 arranged before and after a processing machine 2, and both conveyors 3,
Place the workpiece 1 on the conveyor 4 and move it from the first conveyor 3 to the second conveyor.
The workpiece 1 was being conveyed toward the conveyor 4. By the way, like this, conveyor 3,
When processing workpiece 1 while conveying it in step 4,
When the position where the workpiece 1 is to be processed has passed the processing machine 2, the conveyors 3 and 4 are stopped and the workpiece 1 is
Once stopped at that position and processed by processing machine 2,
It is necessary to operate the conveyors 3 and 4 again to convey the workpiece 1. When such an operation is performed, the workpiece 1 slides on the conveyors 3 and 4 due to the inertia of the workpiece 1 at the time of stopping and starting, and in the conventional conveying device, the position where the workpiece 1 is to be processed is not adjusted by the processing machine 2. It was difficult to accurately correspond to the position. The faster the transport speed of the workpiece 1 is, the more the positional deviation will occur, and since there is a limit to the transport speed and it was not possible to increase the transport speed with conventional equipment, the production speed is slow. It was hot.
本発明は上述の点に鑑みて為されたものであつ
て、その主な目的とするところは、加工物を加工
機の対応する位置へ正確に位置決めすることにあ
り、他の目的とするところは、正確な位置決めに
よつて、生産速度を向上させることにあり、さら
に他の目的とするところは、軟らかい加工物でも
加工機による以外の変形を加えることなく搬送す
ることにある。 The present invention has been made in view of the above points, and its main purpose is to accurately position a workpiece to a corresponding position on a processing machine. The purpose of the present invention is to improve production speed through accurate positioning, and another objective is to transport even soft workpieces without deformation other than that caused by the processing machine.
以下、本発明の実施例を図面に基づいて説明す
る。本発明に係る加工物の搬送装置は、加工物１
の搬送方向に沿つて加工機２の前後に夫々第１コ
ンベア３と第２コンベア４が配設され、第１コン
ベア３から第２コンベア４に向かつて搬送される
加工物１を第１コンベア３と第２コンベア４とに
跨がつて保持することにより、加工物１を加工機
２で加工する位置に位置決めする装置であつて、
各コンベア３，４は夫々加工物１を把持して搬送
方向の前方へ送るクランプ５と、クランプ５を加
工物１の搬送方向に沿つて移動させるための駆動
手段６とを備え、駆動手段６はクランプ５に固定
されるボールナツト７と、加工物１の搬送方向に
沿つて配設されボールナツト７に螺合するボール
ねじ８と、両コンベア３，４のボールねじ８間を
連結していて両ボールねじ８に回転力を伝達する
シヤフト１８と、シヤフト１８を回転駆動して両
ボールねじ８を回転させることによりボールナツ
ト７に連結されたクランプ５を前後に移動させる
速度可変なモータ９とから構成され、加工機２の
前後に配設された両コンベア３，４の各クランプ
５は夫々加工機２の前後で加工物１を把持し、両
クランプ５が同期して両クランプ５の間隔を一定
に保つたままで移動することを特徴とするもので
ある。本実施例では、第２図に示すように、加工
物１を平板状とし、この加工物１をホツトプレス
加工する例を示す。加工物１は加工機２の前後に
夫々配設された第１コンベア３から第２コンベア
４に向かつて搬送される。両コンベア３，４は第
３図のように構成される。すなわち、前後に夫々
配設されたロール１０間にベルト１１が掛け渡さ
れ、ベルト１１上面にはベルト１１の巾方向全長
に亘つてベルト１１上面を上下から挾むクランプ
５が配設されている。クランプ５はベルト１１を
上下から挾持する位置とベルト１１を離す位置と
の間で開閉自在となつている。クランプ５の下部
にはボールナツト７が固着され、このボールナツ
ト７には前後方向に沿つて配設されたボールねじ
８が螺合する。また、クランプ５の左右両端には
夫々ランナ１２が取着され、各ランナ１２はコン
ベア３，４の左右に前後方向に沿つて架設された
一対のガイドレール１３に沿つて移動自在となつ
ている。ボールナツト７及びボールねじ８は、第
４図に示すように、ナツトとねじとの間に多数の
ボールベアリング１４が介装されて、ボールナツ
ト７とボールねじ８とが互いに滑らかに回動でき
るようにしたものであつて、ボールねじ８の回動
に伴つてボールナツト７がボールねじ８長手方向
に沿つて移動するものである。すなわち、ボール
ねじ８はフレーム１５に固定された２つのマイタ
ーギア１６と２本のシヤフト１７，１８及びベル
ト１９とプーリ２０とによつてモータ９に連結さ
れており、モータ９の回動に伴つてボールねじ８
が回動するようになつている。こうしてモータ９
でボールねじ８が回動するとボールナツト７に連
結されたクランプ５が前後に移動するのである。
モータ８は直流モータであり、サイリスタ制御に
より無段階に速度可変となつている。シヤフト１
８は第１コンベア３と第２コンベア４との両方の
マイターギア１６に接続されており、一台のモー
タ９で第１コンベア３と第２コンベア４との両方
のクランプ５を同時に駆動している。このとき両
クランプ５は同じ速度で前後し、両クランプ５間
の距離が一定に保たれる。図中２１はロール１０
の軸受である。ところで、加工物１を搬送する
際、加工物１が前工程より第１コンベア３に送ら
れてきたときにはクランプ５はコンベア３，４の
後端に位置して開いており、加工物１がクランプ
５の間でベルト１１上を通過する。加工物１の前
端が第２コンベア３のクランプ５間でベルト１１
上を通過すると両コンベア３，４のクランプ５が
閉じて加工物１とベルト１１を同時に上下から挾
み、モータ９が回転してクランプ５が前進する。
このとき両クランプ５は同速度で移動するため、
加工物１が引張られたり、撓んだりすることがな
い。また、加工物１はベルト１１上を通るため途
中で垂れ下がることがない。このようにして加工
物１が所定位置に達するとクランプ５が停止し
て、加工物１が加工機２によつて加工される。加
工物１を所定位置まで搬送したクランプ５は再び
後端してコンベア３，４の後端まで戻り、次の搬
送に備える。このクランプ５の前進速度や後退速
度はモータ９の回転速度を制御することによつて
適宜可変される。以上のようにして、ボールナツ
ト７とボールねじ８とによるクランプ５の位置決
め精度の向上とモータ９の速度制御によるクラン
プ５の停止時におけるオーバーランの防止とが為
されるのである。 Embodiments of the present invention will be described below based on the drawings. The workpiece conveyance device according to the present invention includes a workpiece 1
A first conveyor 3 and a second conveyor 4 are arranged before and after the processing machine 2, respectively, along the conveyance direction, and the workpiece 1 to be conveyed from the first conveyor 3 to the second conveyor 4 is transferred to the first conveyor 3 and a second conveyor 4 to position the workpiece 1 at a position to be processed by the processing machine 2,
Each of the conveyors 3 and 4 includes a clamp 5 that grips the workpiece 1 and sends it forward in the conveyance direction, and a drive means 6 for moving the clamp 5 along the conveyance direction of the workpiece 1. A ball nut 7 fixed to the clamp 5, a ball screw 8 disposed along the conveyance direction of the workpiece 1 and screwed into the ball nut 7, and a ball screw 8 of both conveyors 3 and 4 are connected. Consists of a shaft 18 that transmits rotational force to the ball screw 8, and a variable speed motor 9 that rotates the shaft 18 to rotate both ball screws 8, thereby moving the clamp 5 connected to the ball nut 7 back and forth. The clamps 5 of both conveyors 3 and 4 disposed before and after the processing machine 2 grip the workpiece 1 at the front and rear of the processing machine 2, respectively, and both clamps 5 synchronize to keep the interval between the two clamps 5 constant. It is characterized by being able to move while maintaining the same position. In this embodiment, as shown in FIG. 2, the workpiece 1 is formed into a flat plate, and the workpiece 1 is hot-pressed. The workpiece 1 is conveyed from a first conveyor 3 disposed before and after the processing machine 2 to a second conveyor 4, respectively. Both conveyors 3 and 4 are constructed as shown in FIG. That is, the belt 11 is stretched between the rolls 10 arranged at the front and rear, respectively, and a clamp 5 is disposed on the top surface of the belt 11 to sandwich the top surface of the belt 11 from above and below over the entire length of the belt 11 in the width direction. . The clamp 5 can be opened and closed between a position where the belt 11 is clamped from above and below and a position where the belt 11 is separated. A ball nut 7 is fixed to the lower part of the clamp 5, and a ball screw 8 disposed along the front-rear direction is screwed into the ball nut 7. Further, runners 12 are attached to both the left and right ends of the clamp 5, and each runner 12 is movable along a pair of guide rails 13 installed along the front-rear direction on the left and right sides of the conveyors 3 and 4. . As shown in FIG. 4, the ball nut 7 and the ball screw 8 have a large number of ball bearings 14 interposed between the nut and the screw so that the ball nut 7 and the ball screw 8 can rotate smoothly relative to each other. The ball nut 7 moves along the longitudinal direction of the ball screw 8 as the ball screw 8 rotates. That is, the ball screw 8 is connected to the motor 9 by two miter gears 16 fixed to the frame 15, two shafts 17 and 18, a belt 19, and a pulley 20, and as the motor 9 rotates, ball screw 8
is starting to rotate. In this way motor 9
When the ball screw 8 rotates, the clamp 5 connected to the ball nut 7 moves back and forth.
The motor 8 is a DC motor, and its speed is steplessly variable by thyristor control. Shaft 1
8 is connected to the miter gears 16 of both the first conveyor 3 and the second conveyor 4, and one motor 9 drives both the clamps 5 of the first conveyor 3 and the second conveyor 4 at the same time. . At this time, both clamps 5 move back and forth at the same speed, and the distance between both clamps 5 is kept constant. 21 in the figure is roll 10
This is a bearing. By the way, when conveying the workpiece 1, when the workpiece 1 is sent from the previous process to the first conveyor 3, the clamp 5 is located at the rear end of the conveyors 3 and 4 and is open, and the workpiece 1 is held in the clamp. It passes over the belt 11 between 5 and 5. The front end of the workpiece 1 is connected to the belt 11 between the clamps 5 of the second conveyor 3.
When it passes over the top, the clamps 5 of both conveyors 3 and 4 close and simultaneously clamp the workpiece 1 and the belt 11 from above and below, and the motor 9 rotates and the clamps 5 move forward.
At this time, both clamps 5 move at the same speed, so
The workpiece 1 is not stretched or bent. Furthermore, since the workpiece 1 passes over the belt 11, it does not sag on the way. When the workpiece 1 reaches a predetermined position in this manner, the clamp 5 is stopped and the workpiece 1 is processed by the processing machine 2. After conveying the workpiece 1 to a predetermined position, the clamp 5 returns to the rear end of the conveyor 3, 4 and prepares for the next conveyance. The forward speed and backward speed of the clamp 5 can be varied as appropriate by controlling the rotational speed of the motor 9. In this manner, the positioning accuracy of the clamp 5 is improved by the ball nut 7 and the ball screw 8, and overrun is prevented when the clamp 5 is stopped by controlling the speed of the motor 9.
本発明は上述のように、加工機の前後に配設さ
れた一対のクランプで加工物を把持して加工物を
搬送するので、加工物を加工機で加工するために
停止したときにも、従来のように慣性によつて加
工物がコンベア上を滑つて位置がずれてしまうと
いつたことがなく、位置決めが正確にできるとい
う利点を有し、また、クランプがボールナツトと
ボールねじとによつて位置決めされるので、位置
決めの精度が高いという利点を有する。とくに、
両コンベアのボールねじ間をシヤフトを介して回
転力が伝達されるように連結するとともに、シヤ
フトをモータで回転させるから、第１コンベアお
よび第２コンベアのクランプの移動をシヤフトを
介して正確に同期させることができるのである。
つまり、モータの回転力をシヤフトを介して両コ
ンベアのボールねじに伝達するから、比較的安価
な構成でクランプを正確に同期させることができ
るのである。また、シヤフトであるから経年変化
も比較的少なく、長期間に亘つてクランプを正確
に同期させることができるという利点がある。さ
らにクランプを駆動するモータが速度可変である
ので、クランプの送り速度が加工物の種類によつ
て種々に選択でき、加工物に最も適した条件で搬
送できるという利点を有し、また例えば、加工物
の搬送途中では搬送速度を速くし、停止直前で搬
送速度を緩めれることもでき、こうすれば、加工
物の慣性によるオーバーランが防止できるばかり
でなく、急激な始動や停止によつて加工物に加わ
る負担が小さくなり加工物の変形が防止でき、生
産速度も高めることができるという利点を有す
る。しかも、第１コンベアと第２コンベアとの両
クランプの距離が一定に保たれた状態でクランプ
が移動するので、加工物が引張られたり、撓んだ
りすることがなく、軟かい加工物やホツトメルト
加工によつて溶融したばかりの変形し易い加工物
でも変形させることなく搬送できるという利点を
有する。 As described above, in the present invention, the workpiece is gripped and conveyed by a pair of clamps placed before and after the processing machine, so even when the workpiece is stopped to be processed by the processing machine, It has the advantage of being able to accurately position the workpiece without causing the workpiece to slip on the conveyor due to inertia and become misaligned, as in the case of conventional methods. Since the positioning is carried out using the same method, it has the advantage that the positioning accuracy is high. especially,
The ball screws of both conveyors are connected through the shaft so that rotational force is transmitted, and the shafts are rotated by a motor, so the movement of the clamps on the first and second conveyors can be accurately synchronized through the shaft. It is possible to do so.
In other words, since the rotational force of the motor is transmitted to the ball screws of both conveyors via the shaft, the clamps can be accurately synchronized with a relatively inexpensive configuration. Furthermore, since it is a shaft, there is relatively little deterioration over time, and there is an advantage that the clamps can be accurately synchronized over a long period of time. Furthermore, since the speed of the motor that drives the clamp is variable, the feed speed of the clamp can be selected variously depending on the type of workpiece, and it has the advantage that it can be conveyed under the most suitable conditions for the workpiece. It is possible to increase the conveyance speed while conveying the object and slow it down just before stopping.This not only prevents overruns due to the inertia of the workpiece, but also prevents machining from occurring due to sudden starts or stops. It has the advantage that the load on the object is reduced, deformation of the workpiece can be prevented, and production speed can be increased. Moreover, since the clamps move while maintaining a constant distance between the clamps on the first conveyor and the second conveyor, the workpieces will not be pulled or bent, and the workpieces will not be stretched or bent. It has the advantage that even easily deformable workpieces that have just been melted during processing can be transported without being deformed.
第１図は従来例を示す概略斜視図、第２図は本
発明の一実施例を示す概略構成図、第３図は同上
に使用するコンベアを示す斜視図、第４図は同上
に使用するボールナツトとボールねじとを示す断
面図であり、１は加工物、２は加工機、３は第１
コンベア、４は第２コンベア、５はクランプ、６
は駆動手段、７はボールナツト、８はボールね
じ、９はモータ、１８はシヤフトである。
FIG. 1 is a schematic perspective view showing a conventional example, FIG. 2 is a schematic configuration diagram showing an embodiment of the present invention, FIG. 3 is a perspective view showing a conveyor used in the above, and FIG. 4 is a perspective view showing a conveyor used in the same. 1 is a sectional view showing a ball nut and a ball screw, 1 is a workpiece, 2 is a processing machine, and 3 is a first
Conveyor, 4 is the second conveyor, 5 is the clamp, 6
1 is a driving means, 7 is a ball nut, 8 is a ball screw, 9 is a motor, and 18 is a shaft.
Claims (1)
夫々第１コンベアと第２コンベアが配設され、第
１コンベアから第２コンベアに向かつて搬送され
る加工物を第１コンベアと第２コンベアとに跨が
つて保持することにより、加工物を加工機で加工
する位置に位置決めする装置であつて、各コンベ
アは夫々加工物を把持して搬送方向の前方へ送る
クランプと、クランプを加工物の搬送方向に沿つ
て移動させるための駆動手段とを備え、駆動手段
はクランプに固定されるボールナツトと、加工物
の搬送方向に沿つて配設されボールナツトに螺合
するボールねじと、両コンベアのボールねじ間を
連結していて両ボールねじに回転力を伝達するシ
ヤフトと、シヤフトを回転駆動して両ボールねじ
を回転させることによりボールナツトに連結され
たクランプを前後に移動させる速度可変なモータ
とから構成され、加工機の前後に配設された両コ
ンベアの各クランプは夫々加工機の前後で加工物
を把持し、両クランプが同期して両クランプの間
隔を一定に保つたままで移動することを特徴とす
る加工物の搬送装置。1 A first conveyor and a second conveyor are respectively disposed before and after the processing machine along the conveyance direction of the workpiece, and the workpiece being conveyed from the first conveyor to the second conveyor is transferred to the first conveyor and the second conveyor. It is a device that positions the workpiece at the position to be processed by the processing machine by holding it astride the clamp, and each conveyor has a clamp that grips the workpiece and sends it forward in the conveyance direction, and a clamp that holds the workpiece The drive means includes a ball nut fixed to the clamp, a ball screw disposed along the conveyance direction of the workpiece and screwed into the ball nut, and a drive means for moving the workpiece along the conveyance direction. A shaft that connects the ball screws and transmits rotational force to both ball screws, and a variable speed motor that rotates the shaft and rotates both ball screws to move the clamp connected to the ball nut back and forth. The clamps on both conveyors placed in front and behind the processing machine grip the workpiece at the front and rear of the processing machine, respectively, and both clamps move in synchronization while maintaining a constant interval between the two clamps. A workpiece conveyance device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15677981A JPS5858948A (en) | 1981-09-30 | 1981-09-30 | Carrying device for work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15677981A JPS5858948A (en) | 1981-09-30 | 1981-09-30 | Carrying device for work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5858948A JPS5858948A (en) | 1983-04-07 |
| JPH0117775B2 true JPH0117775B2 (en) | 1989-04-03 |
Family
ID=15635122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15677981A Granted JPS5858948A (en) | 1981-09-30 | 1981-09-30 | Carrying device for work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5858948A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0331454Y2 (en) * | 1986-01-31 | 1991-07-04 | ||
| IT1266010B1 (en) * | 1993-12-30 | 1996-12-16 | Dalcos Srl | CLAMP FEEDER FOR SHEET METAL TAPES |
| JP6439379B2 (en) * | 2014-10-24 | 2018-12-19 | 三星ダイヤモンド工業株式会社 | Substrate processing equipment |
| JP6439378B2 (en) * | 2014-10-24 | 2018-12-19 | 三星ダイヤモンド工業株式会社 | Substrate processing equipment |
| JP2016137717A (en) * | 2016-02-17 | 2016-08-04 | 三星ダイヤモンド工業株式会社 | Substrate processing device |
| JP6439716B2 (en) * | 2016-02-17 | 2018-12-19 | 三星ダイヤモンド工業株式会社 | Substrate processing equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS601862Y2 (en) * | 1979-03-20 | 1985-01-19 | 双葉電子工業株式会社 | material feeding device |
| JPS5627331A (en) * | 1979-08-14 | 1981-03-17 | Tokyo Seat Kk | Sheet frame and its manufacture |
-
1981
- 1981-09-30 JP JP15677981A patent/JPS5858948A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5858948A (en) | 1983-04-07 |
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