JPS589738A - Caulking force controlling device for rotary caulking device - Google Patents

Abstract

PURPOSE:To obtain stable, reliable caulking by controlling pressure of an air cylinder by combining a contact pressure gauge and a solenoid valve and keeping caulking torque of a snap that makes pressure contact to a work constant by the action of the air cylinder. CONSTITUTION:A position detector 18 s installed at a specified position, the pressure of the lower part of a cylinder 6 is released by switching the third solenoid valve 16 and a snap 11 is lowered to caulking position by weight of a snap head 10 etc. A position detector 18 detects a detection plate 17 at this position, outputs a signal and switches the first solenoid valve 14 to send air to the upper part of the air cylinder 6. A piston 7 is pushed down to press the snap 11 against the work, and the work is rotated by a driving mechanism which is not shown in the figure and caulked. Caulking torque of the snap 11 is kept constant by controlling pressure in the cylinder 6 by a contact pressure gaue. Operation is stopped by a timer 19 after lapse of a specified time.

Description

【発明の詳細な説明】 本発明は回転絞め装置において、絞めトルクを一定値に
できるようにした絞め制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a throttle control device that can maintain a constant throttle torque in a rotary throttle device.

如上回転絞め装置は、リベット等のワークを転圧展延し
て較めることによって美味な外観が静粛な作業によって
得られる反面、ワークの軸方向の寸法がバラツキを有す
ると、例えば短か過ぎるような場合、収めトルクが充分
でなくなる欠点があった。The rotary tightening device can achieve an attractive appearance through quiet operation by rolling and rolling a workpiece such as a rivet, but on the other hand, if the workpiece has uneven dimensions in the axial direction, it may cause the workpiece to be too short, for example. In such cases, there is a drawback that the retracting torque is not sufficient.

即ち、従来の回転絞め装置は、スナップの下降位置をス
トッパーによって一定に保ち、ワークを一定の位置迄潰
すようにしていたため、ワークの長さか多少短か目であ
った場合、潰される量が少く、従って絞め強度が不足す
る不都合を生じてしまうことがあった。In other words, in the conventional rotary tightening device, the lowering position of the snap was kept constant by a stopper, and the workpiece was crushed to a certain position, so if the workpiece was long or somewhat short, the amount crushed was small. Therefore, the constriction strength may be insufficient.

本発明は如上従来技術の欠点に鑑み、絞めトルクを一定
に保つことによって安定した信頼性のある絞めが得られ
るようにした回転咬め装置の絞め制御装置を提供する。In view of the drawbacks of the prior art described above, the present invention provides a constriction control device for a rotary clinching device that can obtain stable and reliable constriction by keeping the constriction torque constant.

以下、本発明を図示した実施例によって説明する。Hereinafter, the present invention will be explained with reference to illustrated embodiments.

第１図及び第２図において、１は基台、２は基台１に植
立される支柱、３は昇降可能に支柱２に取り付けられ、
ネジ４によって必要位置に固定される支持台、５は支持
台３に固定され、プーリー５ａを有する電動機、６は支
持台３に取り付けられるエアシリンダー、７はビス・ト
ン、８はピストン７に取り付けられるヘッド保持台、９
は一端にプーリー９３を取り付け、他端にスナップヘッ
ド１０を々り付け、ヘッド保持台８に回転自由であるよ
うにして取り付けられる主軸、１１はスナップ、１２は
プーリー５ａ、９ａをつなぐベルト、１３はシリンダー
６に接続される接点付圧力計、１　ｊ、　１５　、１６
は夫々第１．第２．第３電磁弁、１７はヘッド保持台８
に取り付けられる検出板、１８は支持台３に取り付けら
れる位置検出器。In FIGS. 1 and 2, 1 is a base, 2 is a support installed on the base 1, 3 is attached to the support 2 so that it can be raised and lowered,
A support stand is fixed in a required position by a screw 4, 5 is an electric motor fixed to the support stand 3 and has a pulley 5a, 6 is an air cylinder attached to the support stand 3, 7 is a screw-ton, and 8 is attached to the piston 7. head holding stand, 9
1 has a pulley 93 attached to one end, a snap head 10 is attached to the other end, and a main shaft that is rotatably attached to the head holding base 8, 11 is a snap, 12 is a belt connecting pulleys 5a and 9a, 13 are pressure gauges with contacts connected to cylinder 6, 1 j, 15, 16
are respectively number 1. Second. 3rd solenoid valve, 17 is head holding base 8
18 is a position detector attached to the support base 3.

１９は第２電磁弁１５に連動するタイマーである。19 is a timer interlocked with the second solenoid valve 15.

如上構成において、先ず所定の位置忙位置検出器１８を
設定し、次に始動信号を図示してない制御装置に与える
ことによって第３電磁弁１６が図示の状態から切り換え
られ、スナップ１１はスナツグヘッド１０．主軸９．ヘ
ッド保持台８等の重さで下降する。絞め出力の必要な位
置迄スナップ１１が達すると、位置検出器１８が検出板
１７を検出し、図示してない制御装ｆｌｌＦＫ信号を送
り、第１電磁弁１４を切り換え、エアシリンダー６のと
部に空気を送９込み、ピストン７を強制下降せしめ、ス
ナップ≠１１を図示してないワークに圧接させる。In the above configuration, the third solenoid valve 16 is switched from the illustrated state by first setting the busy position detector 18 at a predetermined position, and then applying a starting signal to a control device (not shown), and the snap 11 is switched from the illustrated state to the snagging head 10. ．． Main shaft 9. It descends due to the weight of the head holding table 8, etc. When the snap 11 reaches the position where the squeezing output is required, the position detector 18 detects the detection plate 17, sends a flFK signal to the control device (not shown), switches the first solenoid valve 14, and closes the air cylinder 6. Air is supplied 9 to force the piston 7 to descend, and the snap ≠ 11 is brought into pressure contact with a workpiece (not shown).

主軸９Ｆｉ、前記制御装置に始動信号を与えた時点にお
いて、電動機５も同時に始動し、これによってベルト１
２を介して回転せしめられているから、スナップ１１は
このワークへの前記圧接によって転圧し較めが開始され
る。At the time when a starting signal is given to the main shaft 9Fi and the control device, the electric motor 5 is also started at the same time, thereby causing the belt 1
Since the snap 11 is rotated via the workpiece 2, the snap 11 starts rolling pressure comparison by the press contact with the workpiece.

°前記第１電磁弁１４の切り換えによってエアシリンダ
ー６の上部が加圧され始め、その値が一定に達すると、
接点付圧力計１３の作動によって信号が発せられ、第２
電磁弁１゛５が切り換わり、一定値の圧力を保持するが
、この時、第２電磁弁１５によってタイマー１９か始動
せしめられ、一定時間経過後第１１第２．第３電磁弁１
４，１５゜１６を夫々切り換えて図示の状態に復帰せし
め、これによってピストン７は上昇し、総て図示の状態
に復する。°The upper part of the air cylinder 6 begins to be pressurized by switching the first solenoid valve 14, and when the pressure reaches a constant value,
A signal is emitted by the operation of the pressure gauge 13 with contacts, and the second
The solenoid valves 1 and 5 are switched to maintain a constant pressure, but at this time, the second solenoid valve 15 starts the timer 19, and after a certain period of time, the 11th, 2nd, . Third solenoid valve 1
4, 15 and 16 respectively to return to the illustrated state, the piston 7 rises, and everything returns to the illustrated state.

尚、上記検出板１７と位置検出装置とからなるスナップ
ヘッド１−０或はスナップ１１に対する下降位置の検出
手段は、公知の接触或は非接触型の位置検出手段の如何
なるものを使用しても何等差支えない。Note that any known contact or non-contact type position detection means may be used to detect the lowered position of the snap head 1-0 or the snap 11, which consists of the detection plate 17 and the position detection device. It doesn't make any difference.

本発明によれば、以上の如くスナップ１１がワークを圧
接する値、即ち絞めトルクを一定の値に保つようにして
絞めを行うものであるから、部品の寸法のバラツキの有
無に拘らず一定強度の較めを行うことが出来、信頼性の
高い安定した鮫めが行える効果が得られる。According to the present invention, as described above, since the tightening is performed by keeping the value at which the snap 11 presses the workpiece, that is, the tightening torque, at a constant value, the strength is constant regardless of the presence or absence of variations in the dimensions of the parts. It is possible to perform comparisons between the two, and it is possible to obtain the effect of being able to perform highly reliable and stable sharking.

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

第１図は一部を破断して示した本発明の実施例の正面図
、 第２図は本発明の実施例の構成説明図である。 １・・・・・・・・・・・・・・・基台２・・・・・・
・・・・・・・・・支柱−３・・・・・・・・・・・・
・・・支持台５・・・・・・・・・・・・・・・電動機
５ａ・・・・・・・・・・・・プーリー６・・・・・・
・・・・・・・・・エアシリンダー７川・・・・・・・
・・・・・ピストン８・・・・・・・・・・・・・・・
ヘッド保持台９・・・・・・・・・・・・・・・主軸９
ａ・・・・・・・・・・・・プーリー１０・・・・・・
・・・・・・・・・スナップヘッド１１６８０１００１
１６１．１０１．夏ナツプ１２…・・・・・・・・・・
・・ベルト１３・・・・・・・・・・・・・・・接点付
圧力計１４・・・・・・・・・・・・・・・第１電磁弁
１５・・・・・・・・・・・・・・・第２電磁弁１６・
・・・・・・・・・・・・・・第３電磁弁１７・・・・
・・・・・・・・・・・検出板１８・・・・・・・・・
・・・・・・位置検出器特許出願人 株式会社　コパルFIG. 1 is a partially cutaway front view of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the configuration of the embodiment of the present invention. １・・・・・・・・・・・・・・・Base 2・・・・・・
・・・・・・・・・Pole-3・・・・・・・・・・・・
...Support stand 5...Motor 5a...Pulley 6...
......Air cylinder 7 rivers...
・・・・・・Piston 8・・・・・・・・・・・・・・・
Head holding stand 9・・・・・・・・・・・・Main shaft 9
a・・・・・・・・・Pulley 10・・・・・・
・・・・・・・・・Snap head 116801001
161.101. Summer nap 12......
・・Belt 13 ・・・・・・・・・・・ Pressure gauge with contact 14 ・・・First solenoid valve 15 ・・・・・......Second solenoid valve 16.
......Third solenoid valve 17...
......Detection plate 18...
...Position detector patent applicant Copal Co., Ltd.

Claims (1)

【特許請求の範囲】 回転するスナップヘッドがスナップをワークに圧接して
穀めを行う回転絞め装置において、エアシリンダーによ
って昇降を制御され、電動機によって回転を駆動され、
前記スナップヘッドを一体的に作動せしめる主軸と、 エアシリンダーの圧力を検出し、制御信号−を発する接
点付圧力計と、 エアシリンダーの作動を制御する電磁弁と、前記主軸の
下降位置を検出し、一定位置においてエアシリンダーの
加圧開始の信号を発する位置検出手段と、 電磁弁と連動し、エアシリンダーの一定圧力による信号
によって電磁弁の作動を制御する制御手段と、 からなり、 前記エアシリンダーは、電磁弁を介する制御手段によっ
て、ｍｌｌ待時は空気圧によらず主軸を一定位置迄下降
せしめ、以後は一定の空気による圧力で一定時間加圧下
降せしめてなるφ 回転絞め装置の絞め力量制御装置。[Claims] A rotary strangling device in which a rotating snap head presses the snap against a workpiece to crush grain, the lifting and lowering being controlled by an air cylinder and the rotation being driven by an electric motor,
A main shaft that integrally operates the snap head, a pressure gauge with contacts that detects the pressure of the air cylinder and issues a control signal, a solenoid valve that controls the operation of the air cylinder, and a main shaft that detects the lowering position of the main shaft. , a position detection means that issues a signal to start pressurizing the air cylinder at a certain position; and a control means that is interlocked with the solenoid valve and controls the operation of the solenoid valve based on a signal generated by the constant pressure of the air cylinder; is a control means via a solenoid valve that lowers the main shaft to a certain position without depending on air pressure during mll standby, and then lowers the pressure for a certain period of time with constant air pressure. Device.