JP2014050937A - Machine tool system - Google Patents

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JP2014050937A
JP2014050937A JP2012198250A JP2012198250A JP2014050937A JP 2014050937 A JP2014050937 A JP 2014050937A JP 2012198250 A JP2012198250 A JP 2012198250A JP 2012198250 A JP2012198250 A JP 2012198250A JP 2014050937 A JP2014050937 A JP 2014050937A
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workpiece
work
machine tool
loader
normal cycle
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Hidetsugu Kawai
秀貢 河合
Maki Inoue
真樹 井上
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Murata Machinery Ltd
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Murata Machinery Ltd
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Abstract

PROBLEM TO BE SOLVED: To hold manufacturing line rerunning-time efficiency high by continuing activities to the highest possible extent without fully stopping a manufacturing line even if processed workpieces cannot be taken out because of a trouble on a downstream or upstream side of the manufacturing line or supply of raw-material workpieces is suspended.SOLUTION: Control means 4 is provided with ordinary cycle programs 33a and 36a and non-ordinary cycle programs 33b and 36b allowing a machine tool 1 and a loader 2 to perform activities other than those in an ordinary cycle. Also included is non-ordinary run determination means 37 that, if information obtained from a manufacturing line 5 satisfies a setting condition, switches the ordinary cycle programs 33a and 36a into the non-ordinary cycle programs 33b and 36b and runs the non-ordinary cycle programs 33b and 36b.

Description

この発明は、旋盤等の工作機械、ローダ、および制御手段を備えた工作機械システムに関する。   The present invention relates to a machine tool system including a machine tool such as a lathe, a loader, and control means.

旋盤等の工作機械は、計測装置、洗浄装置、研削盤等と共に、製造ラインを構成している場合が多い。製造ライン中に組み込まれた工作機械は、製造ラインの上流側で生じた支障または、下流側で生じた支障により、素材となるワークが搬入できない状況、または加工済みのワークの搬出ができないなどの状況になることが多い。通常は、上流側または下流側での支障が検出されると、その時点で即座に、あるいは実行命令の終了時点で工作機械を単純に停止させ、状況が改善されるまで停止状態で待機している。   A machine tool such as a lathe often constitutes a production line together with a measuring device, a cleaning device, a grinding machine, and the like. Machine tools installed in the production line cannot be loaded with workpieces due to troubles occurring upstream or downstream of the production line, or the machined workpieces cannot be unloaded. There are many situations. Normally, when an upstream or downstream failure is detected, the machine tool is simply stopped at that time or at the end of the execution instruction and waits in a stopped state until the situation is improved. Yes.

特許３８３４９９７号公報Japanese Patent No. 3834997 特許２５５６１２３号公報Japanese Patent No. 2556123 特許２９９３３８３号公報Japanese Patent No. 2993383 特開２００２−３０１６３５号公報JP 2002-301635 A

上記のように従来は、製造ライン中の工作機械において、上流側または下流側での支障の検出時に単に停止させているが、必ずしも停止させる必要はなく、無駄な停止によって生産効率の低下を招いている場合がある。
製造ラインでは、各工程毎に必要な時間が異なっていることが多く、このような必要時間の差で、製造ライン中のワークの流れの変動が吸収されることがある。そのため、対象機械につき、製造ラインの上流側または下流側で支障が生じていても、前記対象機械では可能な範囲で加工および搬送の動作を続けておくことが、ライン再稼働時の効率を高く維持する上で好ましいことがある。 As described above, conventionally, machine tools in a production line are simply stopped when a trouble on the upstream side or downstream side is detected. However, it is not always necessary to stop the machine tool. There may be.
In the production line, the time required for each process is often different, and the difference in the required time may absorb fluctuations in the work flow in the production line. Therefore, even if the target machine has trouble on the upstream or downstream side of the production line, it is possible to increase the efficiency when the line is restarted by continuing the processing and transport operations as much as possible in the target machine. It may be preferable to maintain.

この発明の目的は、製造ラインの下流側または上流側で支障があって、加工済みワークの搬出が行えなくなり、または素材ワークの供給が停止されたような場合でも、完全に止めずに可能な範囲で動作を続けることで、ライン再稼働時の効率を高く維持することに貢献できる工作機械システムを提供することである。
この発明の他の目的は、製造ラインの下流側に支障があって、ローダによるワーク排出部へのワーク排出が不能になった場合に、工作機械システムに動作を行わせることで、ライン再稼働時の効率を高く維持できるようにすることである。
この発明のさらに他の目的は、製造ラインの上流側に支障があって、ローダによるワーク供給部からのワーク供給が不能になった場合に、工作機械システムに動作を行わせることで、ライン再稼働時の効率を高く維持できるようにすることである。 The object of the present invention is possible without stopping completely even if the machined workpiece cannot be taken out due to a problem on the downstream side or upstream side of the production line, or the supply of the raw material workpiece is stopped. It is to provide a machine tool system that can contribute to maintaining high efficiency when the line is restarted by continuing operation within the range.
Another object of the present invention is to restart the line by causing the machine tool system to perform an operation when there is a problem on the downstream side of the production line and it becomes impossible to discharge the work to the work discharge part by the loader. It is to be able to maintain the efficiency of time high.
Still another object of the present invention is to allow a machine tool system to perform an operation in the event that there is a problem on the upstream side of the production line and the work supply from the work supply unit by the loader becomes impossible. It is to be able to maintain high efficiency during operation.

この発明の工作機械システム（１）は、工作機械（２）と、この工作機械（２）に対してワーク（Ｗ）の搬入搬出を行うローダ（３）と、前記工作機械（２）およびローダ（３）の制御を行う制御手段（４）とを備え、
前記工作機械（２）は、ワーク（Ｗ）を支持するワーク支持手段（１１，１２）と、このワーク支持手段（１１，１２）に支持されたワーク（Ｗ）に対して加工を行う加工手段（１３，１４）とを有し、
前記ローダ（３）は、素材となるワーク（Ｗ）を供給するワーク供給部（２１）、前記ワーク支持手段（１１，１２）、および前記工作機械（２）による加工済みのワーク（Ｗ）を排出するワーク排出部（２２）の間でワーク（Ｗ）の搬送が可能であり、
前記制御手段（４）は、前記ワーク供給手段（２１）のワーク（Ｗ）を前記ローダ（３）により保持して前記ワーク支持手段（１１，１２）へ搬送し、前記加工手段（１３，１４）に前記ワーク支持手段（１１，１２）のワーク（Ｗ）を加工させ、この加工されたワーク（Ｗ）を前記ワーク排出手段（２２）へ排出する通常サイクル（３３ａ，３６ａ）と、この通常サイクル（３３ａ，３６ａ）以外の定められた動作を前記工作機械（２）およびローダ（３）に行わせる非通常サイクル（３３ｂ，３６ｂ）とが設定されていて、前記工作機械（２）および前記ローダ（３）を含む製造ライン（５）から得た情報が設定条件を充足する場合に、前記通常サイクル（３３ａ，３６ａ）から切り換えて前記非通常サイクル（３３ｂ，３６ｂ）を実行させる非通常実行判定手段（３７）を有することを特徴とする。前記非通常サイクル（３３ｂ，３６ｂ）は、単に工作機械システム（１）の動作を止めた場合よりも、ライン再稼働時の製造ライン（５）の効率が良くなる動作であれば、どのような動作を行うサイクルであっても良い。 A machine tool system (1) according to the present invention includes a machine tool (2), a loader (3) for loading and unloading a workpiece (W) with respect to the machine tool (2), the machine tool (2) and the loader. Control means (4) for controlling (3),
The machine tool (2) includes workpiece support means (11, 12) for supporting the workpiece (W) and machining means for machining the workpiece (W) supported by the workpiece support means (11, 12). (13, 14)
The loader (3) receives a workpiece (W) processed by the workpiece supply unit (21) for supplying a workpiece (W) as a material, the workpiece support means (11, 12), and the machine tool (2). The work (W) can be transported between the work discharge parts (22) to be discharged,
The control means (4) holds the work (W) of the work supply means (21) by the loader (3) and conveys it to the work support means (11, 12), and the processing means (13, 14). ) To process the workpiece (W) of the workpiece support means (11, 12) and discharge the processed workpiece (W) to the workpiece discharge means (22), and the normal cycle (33a, 36a). The non-normal cycle (33b, 36b) for causing the machine tool (2) and the loader (3) to perform a predetermined operation other than the cycle (33a, 36a) is set, and the machine tool (2) and the When the information obtained from the production line (5) including the loader (3) satisfies the set condition, the non-normal cycle (33b, 36b) is executed by switching from the normal cycle (33a, 36a). It characterized by having a non-normal execution determination means (37) for. The non-normal cycle (33b, 36b) may be any operation that improves the efficiency of the production line (5) when the line is restarted, rather than simply stopping the operation of the machine tool system (1). It may be a cycle for performing an operation.

この構成によると、常時は前記制御手段（４）による通常サイクル（３３ａ，３６ａ）の実行によって、前記ワーク供給手段（２１）のワーク（Ｗ）を前記ローダ（３）により保持して前記ワーク支持手段（１１，１２）へ搬送し、前記加工手段（１３，１４）により前記ワーク支持手段（１１，１２）のワーク（Ｗ）を加工し、この加工されたワーク（Ｗ）をローダ（３）により前記ワーク排出手段（２２）へ排出する動作を繰り返す。
非通常実行判定手段（３７）は、前記製造ライン（５）の情報を監視し、製造ライン（５）から得た情報が設定条件を充足する場合は、前記通常サイクル（３３ａ，３６ａ）から切り換えて前記非通常サイクル（３３ｂ，３６ｂ）を実行させる。前記製造ライン（５）から得る情報は、単に製造ライン（５）の上流側または下流側の機器からの停止を知らせる情報であっても良く、その場合、前記非通常実行判定手段（３７）の前記設定条件は、その停止を知らせる情報を受信することとされる。 According to this configuration, the work support is supported by holding the work (W) of the work supply means (21) by the loader (3) by executing the normal cycle (33a, 36a) by the control means (4). The workpiece (W) of the workpiece support means (11, 12) is processed by the processing means (13, 14), and the processed workpiece (W) is loaded into the loader (3). The operation of discharging to the workpiece discharging means (22) is repeated.
The non-normal execution determination means (37) monitors the information on the production line (5), and switches from the normal cycle (33a, 36a) when the information obtained from the production line (5) satisfies the setting condition. Thus, the non-normal cycle (33b, 36b) is executed. The information obtained from the production line (5) may simply be information notifying the stop from the equipment on the upstream side or the downstream side of the production line (5). The setting condition is that information notifying the stop is received.

この発明において、前記工作機械（２）が、前記ワーク支持手段（１１，１２）を複数有するか、または前記ワーク支持手段（１１，１２）以外にワークを支持可能なワーク支持別手段（１７，１８，１９）を有し、前記非通常実行判定手段（３７）は、前記設定条件として、前記製造ライン（５）から得た情報が、前記ローダ（３）による前記ワーク排出部（２２）へのワーク排出が不能になる結果となる情報の場合に、前記非通常サイクル（３３ｂ，３６ｂ）を実行させる設定条件を有し、前記非通常サイクル（３３ｂ，３６ｂ）として、前記ワーク支持手段（１１，１２）に支持されて前記加工手段（１３，１４）により加工された加工済みのワーク（Ｗ）を前記ローダ（３）により、前記複数のワーク支持手段（１１，１２）のうちの空き状態のワーク支持手段（１１，１２）または前記ワーク支持別手段に搬送させ、前記通常サイクル（３３ａ，３６ａ）の一部となる前記ワーク供給部（２１）の新たなワーク（Ｗ）の搬入からそのワークの前記加工手段（１３，１４）による加工までの動作を続行させるサイクル部分を含むものとしても良い。   In this invention, the machine tool (2) has a plurality of the work support means (11, 12), or a work support separate means (17, 12) capable of supporting a work other than the work support means (11, 12). 18, 19), and the non-normal execution determination means (37) uses the information obtained from the production line (5) as the setting condition to the work discharge section (22) by the loader (3). In the case of information that results in disabling the discharge of the workpiece, the workpiece support means (11) has a setting condition for executing the abnormal cycle (33b, 36b) as the abnormal cycle (33b, 36b). 12), the processed workpiece (W) processed by the processing means (13, 14) supported by the processing means (13, 14) by the loader (3) among the plurality of work support means (11, 12). A new workpiece (W) is carried into the workpiece supply unit (21) which is transported to the workpiece support means (11, 12) in the empty state or the workpiece support different means and becomes a part of the normal cycle (33a, 36a). It is good also as a thing including the cycle part which continues the operation | movement until the process by the said process means (13,14) of the workpiece | work.

この構成の場合、前記ローダ（３）による前記ワーク排出部（２２）へのワーク排出が不能になる結果となる情報、例えば前記製造ライン（５）におけるこの工作機械システム（１）よりも下流側のライン構成機器（７〜９）の故障または動作遅延等の情報を前記非通常実行判定手段（３７）が受けると、前記非通常サイクル（３３ｂ，３６ｂ）を実行する。この場合の非通常サイクル（３３ｂ，３６ｂ）は、前記ワーク支持手段（１１，１２）に支持されて前記加工手段（１３，１４）により加工された加工済みのワーク（Ｗ）を前記ローダ（３）により、前記複数のワーク支持手段（１１，１２）のうちの空き状態のワーク支持手段（１１，１２）または前記ワーク支持別手段（１７〜１９）に搬送させ、前記通常サイクル（３３ａ，３６ａ）の一部となる前記ワーク供給部（２１）の新たなワーク（Ｗ）の搬入からそのワークの前記加工手段（１３，１４）による加工までの動作を続行させるサイクルである。
すなわち、素材供給部（２１）から素材を搬入して加工するまでの動作は通常に行い、空き状態のワーク支持部（１１，１２）または前記ワーク支持別手段（３７）を利用することで、搬出できない加工済ワーク（Ｗ）を工作機械システム（１）内に保持し、加工を進めておく。
このように、製造ライン（５）の下流側に支障があってワーク排出部（２２）へのワーク排出が不能になった場合にも加工を進めておくことで、ライン再稼働時の効率を高く維持することができる。 In the case of this configuration, information resulting in disabling the discharge of the workpiece to the workpiece discharge section (22) by the loader (3), for example, the downstream side of the machine tool system (1) in the production line (5) When the non-normal execution determining means (37) receives information such as failure or operation delay of the line constituent devices (7-9), the non-normal cycle (33b, 36b) is executed. In this case, in the non-normal cycle (33b, 36b), the processed work (W) supported by the work support means (11, 12) and processed by the processing means (13, 14) is transferred to the loader (3 ) To the empty work support means (11, 12) or the work support separate means (17-19) of the plurality of work support means (11, 12), and the normal cycle (33a, 36a). ) Is a cycle in which the operation from the loading of a new workpiece (W) to the machining by the machining means (13, 14) of the workpiece is continued in the workpiece supply unit (21).
That is, the operation from the material supply unit (21) until the material is carried in and processed normally is performed, and by using the workpiece support unit (11, 12) or the workpiece support separate means (37) in an empty state, The processed workpiece (W) that cannot be carried out is held in the machine tool system (1) and the machining is advanced.
In this way, even when the downstream side of the production line (5) is hindered and the workpiece discharge to the workpiece discharge section (22) becomes impossible, the processing is advanced so that the efficiency at the time of line restart can be improved. Can be kept high.

この発明において、前記非通常実行判定手段（３７）は、前記設定条件として、前記製造ライン（５）から得た情報が、前記ローダ（３）による前記ワーク供給部（２１）からのワーク供給が不能になる結果となる情報の場合に前記非通常サイクル（３３ｂ，３６ｂ）を実行させる設定条件を有し、前記非通常サイクル（３３ｂ，３６ｂ）として、前記通常サイクル（３３ａ，３６ａ）における前記ワーク支持部（１１，１２）の加工済みのワークを前記ローダ（３）により前記ワーク排出部（２２）へ払い出すサイクル部分を続行させるようにしても良い。   In the present invention, the non-normal execution determining means (37) may use the information obtained from the production line (5) as the setting condition to determine whether the work supply from the work supply unit (21) is performed by the loader (3). In the case of information that results in disabling, the work condition in the normal cycle (33a, 36a) is set as the non-normal cycle (33b, 36b). You may make it continue the cycle part which pays out the processed workpiece of a support part (11,12) to the said workpiece | work discharge | emission part (22) by the said loader (3).

この構成の場合、製造ライン（５）の上流側に支障があって、ローダ（３）によるワーク供給部（２１）からのワーク供給が不能になった場合に、工作機械システム（１）を止めずに、非通常サイクル（３３ａ，３６ａ）を実行させることで、加工済みのワーク（Ｗ）をワーク排出部（２２）へ払い出しておく。このように先に加工済みワーク（Ｗ）を払い出しておくことで、ライン再稼働時の効率を高く維持することができる。   In the case of this configuration, the machine tool system (1) is stopped when there is a problem on the upstream side of the production line (5) and the work supply from the work supply unit (21) by the loader (3) becomes impossible. Instead, the processed workpiece (W) is paid out to the workpiece discharge section (22) by executing the non-normal cycle (33a, 36a). Thus, by paying out the processed workpiece (W) first, the efficiency at the time of line restart can be maintained high.

この発明の工作機械システムは、工作機械と、この工作機械に対してワークの搬入搬出を行うローダと、前記工作機械およびローダの制御を行う制御手段とを備え、前記工作機械は、ワークを支持するワーク支持手段と、このワーク支持手段に支持されたワークに対して加工を行う加工手段とを有し、前記ローダは、素材となるワークを供給するワーク供給部、前記ワーク支持手段、および前記工作機械による加工済みのワークを排出するワーク排出部の間でワークの搬送が可能であり、前記制御手段は、前記ワーク供給手段のワークを前記ローダにより保持して前記ワーク支持手段へ搬送し、前記加工手段に前記ワーク支持手段のワークを加工させ、この加工されたワークを前記ワーク排出手段へ排出する通常サイクルと、この通常サイクル以外の定められた動作を前記工作機械およびローダに行わせる非通常サイクルとが設定されていて、前記工作機械および前記ローダを含む製造ラインから得た情報が設定条件を充足する場合に、前記通常サイクルから切り換えて前記非通常サイクルを実行させる非通常実行判定手段を有するため、製造ラインの下流側または上流側で支障があって、加工済みワークの搬出が行えなくなり、または素材ワークの供給が停止されたような場合でも、完全に止めずに可能な範囲で動作を続けることで、ライン再稼働時の効率を高く維持することに貢献できる。   A machine tool system according to the present invention includes a machine tool, a loader that loads and unloads a workpiece with respect to the machine tool, and a control unit that controls the machine tool and the loader, and the machine tool supports the workpiece. A workpiece supporting means that performs processing on the workpiece supported by the workpiece supporting means, and the loader supplies a workpiece supply section that supplies a workpiece as a material, the workpiece supporting means, and the A workpiece can be transferred between workpiece discharge units that discharge a workpiece processed by a machine tool, and the control unit holds the workpiece of the workpiece supply unit by the loader and transfers the workpiece to the workpiece support unit. A normal cycle for causing the processing means to process the work of the work support means, and discharging the processed work to the work discharge means; and the normal cycle. A non-normal cycle for causing the machine tool and the loader to perform a predetermined operation other than the above, and when the information obtained from the production line including the machine tool and the loader satisfies the setting condition, Since there is a non-normal execution determination means that switches from the cycle and executes the non-normal cycle, there is a problem on the downstream or upstream side of the production line, and it becomes impossible to carry out the processed workpiece, or the supply of the raw workpiece is stopped Even in such a case, it is possible to contribute to maintaining high efficiency when the line is restarted by continuing the operation within a possible range without completely stopping.

この発明において、前記工作機械が、前記ワーク支持手段を複数有するか、または前記ワーク支持手段以外にワークを支持可能なワーク支持別手段を有し、前記非通常実行判定手段は、前記設定条件として、前記製造ラインから得た情報が、前記ローダによる前記ワーク排出部へのワーク排出が不能になる結果となる情報の場合に、前記非通常サイクルを実行させる設定条件を有し、前記非通常サイクルとして、前記ワーク支持手段に支持されて前記加工手段により加工された加工済みのワークを前記ローダにより、前記複数のワーク支持手段のうちの空き状態のワーク支持手段または前記ワーク支持別手段に搬送させ、前記通常サイクルの一部となる前記ワーク供給部の新たなワークの搬入からそのワークの前記加工手段による加工までの動作を続行させるサイクル部分を含む場合は、製造ラインの下流側に支障があって、ローダによるワーク排出部へのワーク排出が不能になった場合に、工作機械システムに動作を行わせることで、ライン再稼働時の効率を高く維持できる。   In this invention, the machine tool has a plurality of the workpiece support means or a workpiece support separate means capable of supporting a workpiece in addition to the workpiece support means, and the non-normal execution determination means is configured as the setting condition. The non-normal cycle has a setting condition for executing the non-normal cycle when the information obtained from the production line is information that results in that the work discharge to the work discharge unit by the loader becomes impossible. As described above, the processed workpiece that is supported by the workpiece support means and processed by the processing means is conveyed by the loader to an empty workpiece support means or the workpiece support separate means of the plurality of workpiece support means. From the loading of a new workpiece into the workpiece supply unit, which is part of the normal cycle, to the machining of the workpiece by the machining means If the cycle part that continues the work is included, the machine tool system performs the operation when there is a trouble on the downstream side of the production line and the work discharge to the work discharge part by the loader becomes impossible, High efficiency when the line is restarted.

この発明において、前記非通常実行判定手段が、前記設定条件として、前記製造ラインから得た情報が、前記ローダによる前記ワーク供給部からのワーク供給が不能になる結果となる情報の場合に前記非通常サイクルを実行させる設定条件を有し、前記非通常サイクルとして、前記通常サイクルにおける前記ワーク支持部の加工済みのワークを前記ローダにより前記ワーク排出部へ払い出すサイクル部分を続行させる場合は、製造ラインの上流側に支障があって、ローダによるワーク供給部からのワーク供給が不能になった場合に、工作機械システムに動作を行わせることで、ライン再稼働時の効率を高く維持できる。   In the present invention, the non-normal execution determination unit may determine that the non-normal execution determination unit is the non-normal execution determination unit when the information obtained from the manufacturing line is information that results in the work supply from the work supply unit by the loader being disabled. If the setting condition for executing a normal cycle is included, and the non-normal cycle is continued as the non-normal cycle, the cycle portion in which the workpiece that has been processed in the normal cycle is discharged to the workpiece discharge unit by the loader. If there is a problem on the upstream side of the line and the work supply from the work supply unit by the loader becomes impossible, the machine tool system can be operated to maintain high efficiency when the line is restarted.

この発明の一実施形態に係る工作機械システムおよび製造ラインの概念構成を示すブロック図である。1 is a block diagram showing a conceptual configuration of a machine tool system and a production line according to an embodiment of the present invention. 加工を進めて排出できないワークを工作機械内に保持しておく一例の説明図である。It is explanatory drawing of an example which hold | maintains the workpiece | work which cannot be discharged | emitted by advancing a process in a machine tool. 加工を進めて排出できないワークを工作機械内に保持しておく他の例の説明図である。It is explanatory drawing of the other example which hold | maintains the workpiece | work which cannot be discharged | emitted by advancing a process in a machine tool.

この工作機械システム１は、工作機械２と、この工作機械２に対してワークの搬入搬出を行うローダ３と、前記工作機械２およびローダ３の制御を行う制御手段４とを備え、製造ライン５に組み込まれている。製造ライン５には、この工作機械システム１の他に、各種のライン構成機器６〜９が構成されている。この工作機械システム１に対する上流側のライン構成機器６は、例えば素材となるワークＷを供給する素材供給装置からなる。下流側のライン構成機器７〜９としては、例えば、下流側へ順次配列された洗浄装置、計測装置、後工程の工作機械である研削盤等からなる。各ライン構成機器６〜９は、その制御を行う機器制御手段６ａ〜９ａを有している。これら工作機械システム１の制御手段４および各ライン構成機器６の機器制御手段６ａ〜９ａは、製造ライン５の統括制御を行うライン制御手段１０に接続されている。   The machine tool system 1 includes a machine tool 2, a loader 3 that loads and unloads workpieces with respect to the machine tool 2, and a control unit 4 that controls the machine tool 2 and the loader 3. Built in. In addition to the machine tool system 1, the production line 5 includes various line constituent devices 6 to 9. The upstream line constituent device 6 with respect to the machine tool system 1 includes a material supply device that supplies a workpiece W as a material, for example. The downstream line constituent devices 7 to 9 include, for example, a cleaning device, a measuring device, and a grinding machine that is a post-process machine tool, which are sequentially arranged on the downstream side. Each line component apparatus 6-9 has the apparatus control means 6a-9a which performs the control. The control means 4 of the machine tool system 1 and the device control means 6 a to 9 a of each line component device 6 are connected to a line control means 10 that performs overall control of the production line 5.

この工作機械システム１における工作機械２は、図示の例では平行２軸旋盤であり、中央に、ワークＷを支持する主軸およびチャックからなる２つのワーク支持手段１１，１２が設けられ、その両側に、ワーク支持手段１１，１２に支持されたワークＷに対して加工を行う加工手段１３，１４が設けられている。加工手段１３，１４は、タレット形の刃物台１３ａ，１４ａと、この刃物台１３ａ，１４ａの複数の工具ステーションにそれぞれ取付けられた複数の工具１５と、前記刃物台１３ａ，１４ａを前後（Ｚ軸方向），左右（Ｘ軸方向）に移動させる送り台１３ｂ，１４ｂ、並びに刃物台１３ａ，１４ａを割り出し回転させる機構（図示せず）を有する。   The machine tool 2 in the machine tool system 1 is a parallel twin-axis lathe in the illustrated example, and is provided with two workpiece support means 11 and 12 including a spindle and a chuck for supporting the workpiece W at the center, and on both sides thereof. Processing means 13 and 14 for processing the workpiece W supported by the workpiece support means 11 and 12 are provided. The processing means 13 and 14 include a turret-shaped tool post 13a and 14a, a plurality of tools 15 respectively attached to a plurality of tool stations of the tool post 13a and 14a, and the tool post 13a and 14a in front and rear directions (Z-axis). Direction) and left and right (X axis direction) feed bases 13b and 14b, and a mechanism (not shown) for indexing and rotating the tool rests 13a and 14a.

工作機械２は、この他に反転装置１６を備える。反転装置１６は、２つのチャック１７，１８を有し、これら２つのチャック１７，１８が共に正面を向く姿勢と、互いに対面する姿勢とに垂直軸心回りに姿勢変更可能である。この姿勢変更は、両側のチャック１７，１８が９０°ずつ姿勢変更する構成であっても、片方のチャック１７が姿勢固定であって、もう片方のチャック１８が１８０°姿勢を変更するものであっても良い。反転装置１６は、正面方向を向く姿勢で片方のチャック１７で受け取ったワークＷを、対面姿勢で他方のチャック１８に渡し、チャック１７，１８を再び同じ正面向き姿勢とすることで、ワークＷの表裏反転を行う。この反転装置１６のチャック１７，１８は、請求項で言うワーク支持別手段となる。   In addition, the machine tool 2 includes a reversing device 16. The reversing device 16 includes two chucks 17 and 18, and the postures of the two chucks 17 and 18 can be changed around the vertical axis between a posture in which the two chucks 17 and 18 face each other and a posture facing each other. This posture change is such that even if the chucks 17 and 18 on both sides are changed in posture by 90 °, one chuck 17 is fixed in posture and the other chuck 18 is changed in posture by 180 °. May be. The reversing device 16 passes the workpiece W received by one chuck 17 in a posture facing the front direction to the other chuck 18 in a facing posture, and the chucks 17 and 18 are again set to the same front posture, whereby the workpiece W Reverse the front and back. The chucks 17 and 18 of the reversing device 16 serve as workpiece support different means in the claims.

工作機械２は、さらに、支障時用の等のワーク予備置台１９を、ローダ３によるワークＷの搬送が可能で、かつ加工およびワーク搬送の邪魔とならない適宜の箇所に設けてあっても良い。このワーク予備置台１９も、請求項で言う他のワーク支持別手段となる。   The machine tool 2 may further be provided with a work pre-placement table 19 for troubles or the like at an appropriate location where the work W can be transported by the loader 3 and does not interfere with processing and work transport. This work preliminary placing table 19 is another means for supporting the work as described in the claims.

ローダ３は、工作機械２に対してワークＷの搬入搬出を行う手段である。ローダ３は、具体的には、工作機械２の一側に設けられたワーク供給部２１と、主軸のチャックからなる前記ワーク支持手段１１，１２と、工作機械２の他側に設けられたワーク排出部２２との間でワークＷの搬送を行う手段であり、さらに前記反転装置１６のチャック１７，１８およびワーク予備置台１９に対してもワークＷの受渡しが可能とされる。前記ワーク供給部２１は、例えば、工作機械２の一部として、または工作機械２とは別に設けられたワーク供給台、またはコンベヤ，ワークフィ−ダ等における、ローダ３に対するワーク受渡し部位等である。前記ワーク排出部２２は、例えば、工作機械２の一部として、または工作機械２とは別に設けられた排出ワーク受け台、またはコンベヤ等におけるローダ３に対するワーク受渡し部位等である。   The loader 3 is means for carrying the workpiece W into and out of the machine tool 2. Specifically, the loader 3 includes a workpiece supply unit 21 provided on one side of the machine tool 2, the workpiece support means 11 and 12 including a chuck of the spindle, and a workpiece provided on the other side of the machine tool 2. It is a means for conveying the workpiece W to and from the discharge section 22, and the workpiece W can be delivered also to the chucks 17 and 18 and the workpiece preliminary table 19 of the reversing device 16. The workpiece supply unit 21 is, for example, a workpiece supply unit provided as a part of the machine tool 2 or separately from the machine tool 2, or a workpiece delivery portion for the loader 3 in a conveyor, a workpiece feeder, or the like. The workpiece discharge unit 22 is, for example, a discharge workpiece cradle provided as a part of the machine tool 2 or separately from the machine tool 2, or a workpiece transfer portion for the loader 3 in a conveyor or the like.

ローダ３は、この例ではガントリ形式であり、工作機械２の上方に架設されたレール２７に走行体２３を走行自在に設置し、この走行体２３に前後方向に移動自在な前後移動台２４を介してロッド状の昇降体２５を昇降自在に設置して構成される。昇降体２５の下端のローダヘッド部に、ワークＷを把持する２つのチャック２６が、互いに下向き姿勢と背面向き姿勢とに入れ替え自在に設けられている。各軸の駆動手段（図示せず）による走行体２３の走行駆動、前後移動台２４の前後移動、および昇降体２５の昇降により、ローダヘッドのチャック２６が直交３軸方向に移動可能である。   In this example, the loader 3 is of a gantry type, and a traveling body 23 is movably installed on a rail 27 installed above the machine tool 2, and a front / rear moving table 24 that is movable in the front-rear direction is provided on the traveling body 23. A rod-like lifting body 25 is installed so as to be movable up and down. Two chucks 26 for gripping the workpiece W are provided on the loader head portion at the lower end of the elevating body 25 so as to be interchangeable between a downward posture and a rearward posture. The chuck 26 of the loader head can be moved in the three orthogonal directions by driving the traveling body 23 by driving means (not shown) of each axis, moving the front / rear moving table 24 back and forth, and raising and lowering the lifting body 25.

この工作機械システム１の制御手段４は、工作機械１を制御する工作機械制御装置３１と、ローダ３を制御するローダ制御装置３２とで構成される。工作機械制御装置３１は、コンピュータ式の数値制御装置とプログラマブルコントローラとでなり、ＮＣコード等で記述された加工プログラム３３を演算制御部３４で実行することで、工作機械１の制御を行う。加工プログラム３３における刃物台移動命令等の軸移動命令は演算制御部３４で直接に、またはモーションコントローラ（図示せず）を介して制御されるが、チャック開閉等のシーケンス制御命令は、演算制御部３４からシーケンス制御部３５へ転送され、シーケンス制御部３５により制御を行う。   The control means 4 of the machine tool system 1 includes a machine tool control device 31 that controls the machine tool 1 and a loader control device 32 that controls the loader 3. The machine tool control device 31 includes a computer-type numerical control device and a programmable controller, and controls the machine tool 1 by executing a machining program 33 described by an NC code or the like by the arithmetic control unit 34. Axis movement commands such as a tool post movement command in the machining program 33 are controlled by the arithmetic control unit 34 directly or via a motion controller (not shown). 34 is transferred to the sequence control unit 35 and is controlled by the sequence control unit 35.

ローダ制御装置３２は、コンピュータ式のプログラマブルコントローラからなり、ローダプログラム３６を演算制御部３７で実行することで、ローダ３の制御を行う。なお、工作機械制御装置３１とローダ制御装置３２とは、同じコンピュータ上または、同じ回路基板上に構成されていても良い。また、その場合、加工プログラム３３とローダプログラム３６とは、１本のプログラムとして設けられていても良い。   The loader control device 32 includes a computer-type programmable controller, and controls the loader 3 by executing the loader program 36 with the arithmetic control unit 37. The machine tool control device 31 and the loader control device 32 may be configured on the same computer or the same circuit board. In that case, the machining program 33 and the loader program 36 may be provided as a single program.

この実施形態の工作機械システム１は、上記の基本構成において、加工プログラム３３およびローダプログラム３６として、通常サイクルの制御を行う通常加工サイクルプログラム３３ａ，３６ａとは別に、非通常サイクルの制御を行う非通常サイクルプログラム３３ｂ，３６ｂを設け、かつ非通常実行判定手段３７が設けてある。非通常実行判定手段３７は、前記工作機械２および前記ローダ３を含む製造ライン５から得た情報が設定条件を充足する場合に、通常サイクルプログラム３３ａ，３６ａに切り換えて非通常サイクルプログラム３３ｂ，３６ｂを演算制御部３４，３７に実行させる手段である。非通常実行判定手段３７は、図示の例ではローダ制御装置３２に設けているが、工作機械制御装置３１に設けられていても良く、またこれらとは別に制御手段４に設けられていても良い。非通常実行判定手段３７等の具体的な機能は、以下の動作説明と共に説明する。   In the machine tool system 1 of this embodiment, in the basic configuration described above, as the machining program 33 and the loader program 36, the non-normal cycle control is performed separately from the normal machining cycle programs 33a and 36a that control the normal cycle. Normal cycle programs 33b and 36b are provided, and non-normal execution determination means 37 is provided. When the information obtained from the production line 5 including the machine tool 2 and the loader 3 satisfies the setting conditions, the non-normal execution determination unit 37 switches to the normal cycle programs 33a and 36a and switches to the non-normal cycle programs 33b and 36b. Is a means for causing the arithmetic and control units 34 and 37 to execute. The non-normal execution determination unit 37 is provided in the loader control device 32 in the illustrated example, but may be provided in the machine tool control device 31 or may be provided in the control unit 4 separately from these. . Specific functions of the non-normal execution determination unit 37 and the like will be described together with the following operation description.

上記構成の動作および詳細を説明する。前記通常サイクルプログラム３３ａ，３６ａによる工作機械２の通常サイクルの例としては、両面加工、両軸独立加工、片軸使用加工等の各種類があり、これらの種類は、生産計画等に応じて、通常サイクルプログラム３３ａ，３６ａの切替え等により、適宜選択して行われる。通常サイクルプログラム３３ａ，３６ａを切替えた場合、非通常サイクルプログラム３３ｂ，３６ｂも、その切替えられた通常サイクルプログラム３３ａ，３６ａに応じた制御内容のものに切替えられる。   The operation and details of the above configuration will be described. Examples of the normal cycle of the machine tool 2 by the normal cycle programs 33a and 36a include various types such as double-sided machining, double-axis independent machining, single-axis working machining, etc., depending on the production plan, etc. Ordinarily selected and performed by switching the cycle programs 33a and 36a. When the normal cycle programs 33a and 36a are switched, the non-normal cycle programs 33b and 36b are also switched to those having control contents corresponding to the switched normal cycle programs 33a and 36a.

両面加工の通常加工サイクルは、ワーク供給部２１のワークＷをローダ３が受け取って工作機械１の片方のワーク支持手段１１に渡し、ワーク支持手段１１で把持されているワークＷの片面を加工手段１３で加工し、この片面の加工済みのワークＷをローダ３によって反転装置１６の片方のチャック１７に渡し、反転装置１６によりワークＷをもう片方のチャック１８に持ち替えることで表面反転させ、その判定したワークＷをローダ３でもうけ片方のワーク支持手段１２に渡し、このワーク支持手段１２で把持されているワークＷの残り片面を加工手段１４で加工し、両面加工済みのワークＷをローダ３でワーク排出部２２へ排出するサイクルである。なお、もう片方のワーク支持手段１２と加工手段１４とでワークＷの残り片面を加工している間に、前記片方の片方のワーク支持手段１１と加工手段１３とで新たなワークＷの片面の加工を並行して行う。   In a normal machining cycle of double-side machining, the loader 3 receives the workpiece W from the workpiece supply unit 21 and passes it to one workpiece support means 11 of the machine tool 1, and machining means on one side of the workpiece W gripped by the workpiece support means 11. 13, the processed workpiece W on one side is transferred to the one chuck 17 of the reversing device 16 by the loader 3, and the surface is reversed by changing the workpiece W to the other chuck 18 by the reversing device 16, and the determination The workpiece W is transferred to the other workpiece support means 12 by the loader 3, the remaining one side of the workpiece W held by the workpiece support means 12 is processed by the processing means 14, and the workpiece W after the double-side processing is processed by the loader 3. This is a cycle of discharging to the workpiece discharge unit 22. In addition, while the remaining one side of the workpiece W is being machined by the other workpiece support means 12 and the machining means 14, the one workpiece support means 11 and the machining means 13 on the one side of the new workpiece W are processed. Processing is performed in parallel.

両軸独立加工は、片方のワーク支持手段１１と加工手段１３の組と、もう片方のワーク支持手段１２と加工手段１４の組とで、両方の組の間での受渡しを行うことなく行う加工するサイクルである。両方の組で同じ種類のワークＷを行う場合と、両方の組で全く別のワークＷの加工を行う場合とがある。いずれの場合も、ワーク供給部２１のワークＷをローダ３が受け取って工作機械１のいずれか片方のワーク支持手段１１，１２に渡し、ワーク支持手段１１，１２で把持されているワークＷの片面を加工手段１３，１４で加工し、加工済みのワークＷをローダ３によりワーク排出部２２へ排出するサイクルを、各組毎に別々に行う。   Both-axis independent machining is performed with one set of the workpiece support means 11 and the machining means 13 and the other set of the workpiece support means 12 and the machining means 14 without passing between both sets. It is a cycle to do. There are a case where the same type of workpiece W is performed in both sets and a case where a completely different workpiece W is processed in both sets. In either case, the load W 3 receives the workpiece W from the workpiece supply unit 21, passes it to one of the workpiece support means 11, 12 of the machine tool 1, and one side of the workpiece W gripped by the workpiece support means 11, 12. Are processed by the processing means 13 and 14, and the cycle in which the processed workpiece W is discharged to the workpiece discharge section 22 by the loader 3 is performed separately for each set.

片軸使用加工は、上記の両軸独立加工と同様な加工を、いずれか片方の組だけで行い、残り片方の組は、稼働させずに停止させておく加工サイクルである。   The one-axis-use machining is a machining cycle in which the same machining as the above-described two-axis independent machining is performed with only one of the sets, and the remaining one set is stopped without being operated.

上記のようないずれかの通常サイクルプログラム３３ａ，３６ａを実行している間、非通常実行判定手段３７は、製造ライン１から送られる情報、例えばライン制御手段１０から送られ、または機器制御手段６ａ〜９ａから送られる稼働停止等の信号を監視する。通常実行判定手段３７は、この監視の間に製造ライン１から送られる情報を設定条件と比較し、前記ローダ３による前記ワーク排出部２２へのワーク排出が不能になる結果となる情報の場合に、前記非通常サイクルプログラム３３ｂ，３６ｂを、通常サイクルプログラム３３ａ，３６ａに代えて演算制御部３４，３７に実行させる。
前記設定条件は、例えば、下流側のいずれかのライン構成機器７〜９が稼働停止または処理の遅れ状態となったことを意味する情報である場合である。 While executing any of the normal cycle programs 33a and 36a as described above, the non-normal execution determination means 37 is sent from the information sent from the production line 1, for example, from the line control means 10, or the equipment control means 6a. The signal of the operation stop etc. sent from ˜9a is monitored. The normal execution determination means 37 compares the information sent from the production line 1 during this monitoring with the set condition, and in the case of information that results in the work discharge to the work discharge unit 22 by the loader 3 being impossible. The non-normal cycle programs 33b and 36b are executed by the arithmetic control units 34 and 37 in place of the normal cycle programs 33a and 36a.
The setting condition is, for example, information indicating that any of the downstream line constituent devices 7 to 9 is in an operation stop state or a processing delay state.

非通常サイクルプログラム３３ｂ，３６ｂによる非通常サイクルは、例えば、前記ワーク支持手段１１，１２に支持されて前記加工手段１３，１４により加工された加工済みのワークＷを、前記ローダ３により、複数のワーク支持手段１１，１２のうちの空き状態のワーク支持手段１１，１２、または前記反転装置１６のチャック１７，１８、または前記ワーク予備置台１９に搬送させ、通常サイクルの一部となるワーク供給部２１の新たなワークＷの搬入からそのワークＷの前記加工手段１３，１４による加工までの動作を続行させるサイクルである。   In the non-normal cycle by the non-normal cycle programs 33b and 36b, for example, a plurality of processed workpieces W supported by the workpiece support means 11 and 12 and processed by the processing means 13 and 14 are processed by the loader 3. A workpiece supply unit that is transported to an unoccupied workpiece support unit 11, 12 of the workpiece support units 11, 12, the chucks 17, 18 of the reversing device 16, or the workpiece preliminary table 19 and becomes a part of a normal cycle. This is a cycle in which the operations from the loading of 21 new workpieces W to the machining of the workpieces W by the machining means 13 and 14 are continued.

通常サイクルが前記両面加工のサイクルの場合は、主軸からなる前記ワーク支持手段１１，１２には空きが生じないため、加工済みのワークＷを、例えば、反転装置１６のチャック１７，１８のいずれかに把持させる。反転装置１６は、通常では図２に実線で示すように、１個のワークＷをいずれか片方、例えばチャック１８に保持した状態にあり、残り片方のチャック１７は空き状態であるため、その空き状態のチャック１７を、排出できないワークＷの保持に利用する。この場合、１個のワークＷを余分に工作機械１内に余分に保持できる。ワーク予備置台１９を設けた場合は、このワーク予備置台１９に加工済みワークを載せても良く、その分だけさらに多数のワークＷを余分に工作機械１内に余分に保持できる。   When the normal cycle is the double-sided machining cycle, there is no vacancy in the workpiece support means 11 and 12 composed of the main shaft, so that the machined workpiece W is, for example, one of the chucks 17 and 18 of the reversing device 16. To grip. As shown by a solid line in FIG. 2, the reversing device 16 is normally in a state where one work W is held on one of the chucks 18, for example, the chuck 18, and the remaining one of the chucks 17 is in an empty state. The chuck 17 in the state is used for holding the workpiece W that cannot be discharged. In this case, one workpiece W can be held in the machine tool 1 in excess. In the case where the workpiece preliminary table 19 is provided, a processed workpiece may be placed on the workpiece preliminary table 19, and a larger number of workpieces W can be held in the machine tool 1 by that amount.

通常サイクルが両軸独立加工である場合は、主軸からなる前記ワーク支持手段１１，１２には空きが生じないが、図３に示すように、反転装置１６のチャック１７，１８は両方とも空き状態であるため、これら２つのチャック１７，１８を、排出できないワークＷの保持に利用する。ワーク予備置台１９（図１）を設けた場合は、さらにそれだけ多数のワークＷを保持できる。   When the normal cycle is both-axis independent machining, there is no vacancy in the work support means 11 and 12 comprising the main shaft, but as shown in FIG. 3, both chucks 17 and 18 of the reversing device 16 are vacant. Therefore, these two chucks 17 and 18 are used for holding the workpiece W that cannot be discharged. In the case where the work preliminary table 19 (FIG. 1) is provided, a larger number of works W can be held.

通常サイクルが片軸使用加工の場合は、主軸であるいずれか片方のワーク支持手段１１，１２が空き状態となるため、その空き状態のワーク支持手段１１，１２と反転装置１６のチャック１７，１８とを、排出できないワークＷの保持に利用する。図３はこの状態を示す。この場合、３個のワークＷを余分に工作機械１内に余分に保持できる。ワーク予備置台１９（図１）を設けた場合は、さらにそれだけ多数のワークＷを保持できる。   When the normal cycle is a single-axis machining, either one of the main workpiece supporting means 11 and 12 is in an empty state, so that the empty workpiece supporting means 11 and 12 and the chucks 17 and 18 of the reversing device 16 are used. Are used to hold the workpiece W that cannot be discharged. FIG. 3 shows this state. In this case, the three workpieces W can be held in the machine tool 1 in excess. In the case where the work preliminary table 19 (FIG. 1) is provided, a larger number of works W can be held.

このように、製造ライン５の下流側に支障があってワーク排出部２２へのワーク排出が不能になった場合にも、加工を進めて工作機械１内に保持しておくことで、ライン再稼働時の効率を高く維持することができる。例えば、１個当たりの処理時間につき、製造ライン５の下流側のライン構成機器７が、この工作機械システム１による処理時間よりも短いような場合、先に加工を進めて工作機械１内に保持しておくことで、製造ライン５として、ライン再稼働時の遅れを解消し、または緩和することができる。また、下流側のライン構成機器８が機外計測装置である場合、計測不良時に再計測を行うことがあり、その場合、通常では工作機械２およびこの計測装置以外のライン構成機器６〜９は停止させるが、上記のように先に加工を進めて排出できないようになったワークＷを工作機械１内に保持しておくことで、ライン再稼働時の効率を高く維持することができる。   In this way, even when the downstream side of the production line 5 is obstructed and the workpiece discharge to the workpiece discharge section 22 becomes impossible, the machining can be advanced and held in the machine tool 1 so that the line can be restored. High efficiency during operation can be maintained. For example, in the case where the line component device 7 on the downstream side of the production line 5 is shorter than the processing time by the machine tool system 1 for each processing time, the processing is first performed and held in the machine tool 1. By doing so, it is possible to eliminate or alleviate the delay at the time of line re-operation as the production line 5. In addition, when the downstream line constituent device 8 is an out-of-machine measuring device, remeasurement may be performed at the time of measurement failure. In that case, the machine tool 2 and the line constituent devices 6 to 9 other than this measuring device are usually used. Although the work is stopped, as described above, the work W that cannot be discharged after being advanced in advance is held in the machine tool 1, so that the efficiency at the time of line restart can be maintained high.

上記の製造ライン５の支障は下流側に生じた場合の例であるが、上流側に生じた場合は次のように払出しの制御をする。すなわち、前記非通常実行判定手段３７は、前記設定条件として、前記製造ライン５から得た情報が、前記ローダ３による前記ワーク供給部２１からのワーク供給が不能になる結果となる情報の場合に前記非通常サイクルを実行させる設定条件を有する。このようなワーク供給部２１からのワーク供給が不能になる結果となる情報は、例えば、ワークフィーダ等の上流側のライン構成機器６に異常が生じて停止状態であることを示す信号を出力した場合がある。   Although the above-mentioned trouble of the production line 5 is an example when it occurs on the downstream side, when it occurs on the upstream side, the dispensing is controlled as follows. In other words, the non-normal execution determination unit 37, as the setting condition, when the information obtained from the production line 5 is information that results in that the work supply from the work supply unit 21 by the loader 3 becomes impossible. A setting condition for executing the non-normal cycle; Information that results in the workpiece supply from the workpiece supply unit 21 being disabled, for example, a signal indicating that an abnormality has occurred in the upstream line component device 6 such as a workpiece feeder and is in a stopped state. There is a case.

この場合の非通常サイクルプログラム３３ｂ，３６ｂによる非通常サイクルは、前記通常サイクル３３ａ，３６ａの一部となる前記ワーク支持部１１，１２の加工済みのワーク３を前記ローダ３により前記ワーク排出部２２へ払い出す動作を続行させるサイクルとされる。
従来では、ワーク供給部２１からのワーク供給が不能の場合、工作機械１の稼働を停止していたが、停止せずに加工および搬送動作を続行し、工作機械１内のワークＷが空になるまでワーク排出部２２への加工済みワークＷの払い出しを先に行っておくことによっても、ライン再稼働時の効率を高く維持することができる。 In this case, the non-normal cycle by the non-normal cycle programs 33b and 36b is performed by using the loader 3 to transfer the workpiece 3 processed by the workpiece support portions 11 and 12 to be a part of the normal cycles 33a and 36a. This is a cycle in which the operation of paying out is continued.
Conventionally, when the workpiece supply from the workpiece supply unit 21 is impossible, the operation of the machine tool 1 is stopped. However, the machining and the conveying operation are continued without stopping, and the workpiece W in the machine tool 1 is emptied. Even when the processed workpiece W is paid out to the workpiece discharge unit 22 in advance, the efficiency at the time of restarting the line can be maintained high.

なお、上記実施形態では、前記非通常実行判定手段３７は、製造ライン５に支障があった場合に非通常サイクルプログラム３３ａ，３３ｂを実行させるようにしたが、例えば、数個ないし数十個等のワークＷの加工が行われて製造ライン５中のカウント機器（図示せず）等から設定個数のカウント値がライン制御手段１０等から送られた場合など、製造ライン５に支障がなくても非通常サイクルプログラム３３ａ，３３ｂを実行させるように判定条件が設定されていても良い。また、上記実施形態では、工作機械２が平行２軸旋盤であって反転装置１６を有するもので場合につき説明したが、この発明は、他の種々の工作機械を含む工作機械システムにも適用することができる。   In the above embodiment, the non-normal execution determination unit 37 executes the non-normal cycle programs 33a and 33b when there is a problem with the production line 5. However, for example, several to several tens or the like Even when the workpiece W is machined and a set number of count values are sent from the line control means 10 or the like from a counting device (not shown) or the like in the production line 5, even if there is no problem in the production line 5. Determination conditions may be set so that the non-normal cycle programs 33a and 33b are executed. Further, in the above-described embodiment, the case where the machine tool 2 is a parallel twin-axis lathe and has the reversing device 16 has been described. However, the present invention is also applied to a machine tool system including other various machine tools. be able to.

１…工作機械システム
２…工作機械
３…ローダ
４…制御手段
５…製造ライン
６〜９…ライン構成機器
６ａ〜９ａ…機器制御手段
１０…ライン制御手段
１１，１２…ワーク支持手段
１３，１４…加工手段
１６…反転装置
１７，１８…チャック（ワーク支持別手段）
１９…ワーク予備置台（ワーク支持別手段）
２１…ワーク供給部
２２…ワーク排出部
３１…工作機械制御装置
３２…ローダ制御装置
３３…加工プログラム
３３ａ…通常加工サイクルプログラム
３３ｂ…非通常サイクルプログラム
３６…ローダプログラム
３６ａ…通常加工サイクルプログラム
３６ｂ…非通常サイクルプログラム
Ｗ…ワーク DESCRIPTION OF SYMBOLS 1 ... Machine tool system 2 ... Machine tool 3 ... Loader 4 ... Control means 5 ... Production line 6-9 ... Line component apparatus 6a-9a ... Equipment control means 10 ... Line control means 11, 12 ... Work support means 13, 14 ... Processing means 16 ... reversing devices 17, 18 ... chuck (work support separate means)
19 ... Workpiece stand (work support support means)
DESCRIPTION OF SYMBOLS 21 ... Work supply part 22 ... Work discharge part 31 ... Machine tool control apparatus 32 ... Loader control apparatus 33 ... Machining program 33a ... Normal machining cycle program 33b ... Non-normal cycle program 36 ... Loader program 36a ... Normal machining cycle program 36b ... Non Normal cycle program W ... Work

Claims (3)

工作機械と、この工作機械に対してワークの搬入搬出を行うローダと、前記工作機械およびローダの制御を行う制御手段とを備え、
前記工作機械は、ワークを支持するワーク支持手段と、このワーク支持手段に支持されたワークに対して加工を行う加工手段とを有し、
前記ローダは、素材となるワークを供給するワーク供給部、前記ワーク支持手段、および前記工作機械による加工済みのワークを排出するワーク排出部の間でワークの搬送が可能であり、
前記制御手段は、前記ワーク供給手段のワークを前記ローダにより保持して前記ワーク支持手段へ搬送し、前記加工手段に前記ワーク支持手段のワークを加工させ、この加工されたワークを前記ワーク排出手段へ排出する通常サイクルと、この通常サイクル以外の定められた動作を前記工作機械およびローダに行わせる非通常サイクルとが設定されていて、前記工作機械および前記ローダを含む製造ラインから得た情報が設定条件を充足する場合に、前記通常サイクルから切り換えて前記非通常サイクルを実行させる非通常実行判定手段を有することを特徴とする、
工作機械システム。 A machine tool, a loader for loading and unloading a workpiece to and from the machine tool, and a control means for controlling the machine tool and the loader,
The machine tool has a workpiece support means for supporting a workpiece, and a processing means for processing the workpiece supported by the workpiece support means,
The loader is capable of conveying a workpiece between a workpiece supply unit that supplies a workpiece as a material, the workpiece support means, and a workpiece discharge unit that discharges a workpiece that has been processed by the machine tool,
The control means holds the work of the work supply means by the loader, conveys the work to the work support means, causes the processing means to process the work of the work support means, and the processed work is discharged to the work discharge means. A normal cycle for discharging to the machine and a non-normal cycle for causing the machine tool and the loader to perform a predetermined operation other than the normal cycle, and information obtained from a production line including the machine tool and the loader is set. When setting conditions are satisfied, characterized by having non-normal execution determination means for switching from the normal cycle and executing the non-normal cycle,
Machine tool system. 前記工作機械が、前記ワーク支持手段を複数有するか、または前記ワーク支持手段以外にワークを支持可能なワーク支持別手段を有し、前記非通常実行判定手段は、前記設定条件として、前記製造ラインから得た情報が、前記ローダによる前記ワーク排出部へのワーク排出が不能になる結果となる情報の場合に、前記非通常サイクルを実行させる設定条件を有し、前記非通常サイクルとして、前記ワーク支持手段に支持されて前記加工手段により加工された加工済みのワークを前記ローダにより、前記複数のワーク支持手段のうちの空き状態のワーク支持手段または前記ワーク支持別手段に搬送させ、前記通常サイクルの一部となる前記ワーク供給部の新たなワークの搬入からそのワークの前記加工手段による加工までの動作を続行させるサイクル部分を含む請求項１記載の工作機械システム。   The machine tool has a plurality of the work support means or a work support separate means capable of supporting a work other than the work support means, and the non-normal execution determination means uses the manufacturing line as the set condition. When the information obtained from the information is information that results in the workpiece discharge to the workpiece discharge section being disabled by the loader, the non-normal cycle has a setting condition for executing the non-normal cycle. The processed workpiece supported by the support means and processed by the processing means is transported by the loader to an empty work support means or the work support separate means among the plurality of work support means, and the normal cycle. The work supply unit that is a part of the workpiece supply unit continues the operation from the loading of a new workpiece to the machining of the workpiece by the machining means. Machine tool system of claim 1 further comprising a cycle portion. 前記非通常実行判定手段は、前記設定条件として、前記製造ラインから得た情報が、前記ローダによる前記ワーク供給部からのワーク供給が不能になる結果となる情報の場合に前記非通常サイクルを実行させる設定条件を有し、前記非通常サイクルとして、前記通常サイクルにおける前記ワーク支持部の加工済みのワークを前記ローダにより前記ワーク排出部へ払い出すサイクル部分を続行させる請求項１または請求項２記載の工作機械システム。
The non-normal execution determination unit executes the non-normal cycle when the information obtained from the production line is information that results in the work supply from the work supply unit being disabled by the loader as the setting condition. The cycle part which pays out the processed work of the work support part in the normal cycle to the work discharge part by the loader is continued as the non-normal cycle. Machine tool system.
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JP2005001073A (en) * 2003-06-13 2005-01-06 Murata Mach Ltd Machine tool system and its workpiece carrying method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05200656A (en) * 1992-01-27 1993-08-10 Nippei Toyama Corp Operation control method for finishing machine in working production system
JPH05208347A (en) * 1992-01-28 1993-08-20 Brother Ind Ltd Transport device
JPH11285950A (en) * 1998-04-02 1999-10-19 Murata Mach Ltd Machine tool
JP2000052200A (en) * 1998-08-06 2000-02-22 Yokogawa Electric Corp Production system
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