CN104847716A - 用于气缸致动器的受控加压的装置 - Google Patents

用于气缸致动器的受控加压的装置 Download PDF

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CN104847716A
CN104847716A CN201510060658.6A CN201510060658A CN104847716A CN 104847716 A CN104847716 A CN 104847716A CN 201510060658 A CN201510060658 A CN 201510060658A CN 104847716 A CN104847716 A CN 104847716A
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gas
parts
gas cylinder
cylinder actuators
inflation line
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CN104847716B (zh
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奥古斯托·卡佩勒
亚历山德罗·卡佩勒
丹特·卡佩勒
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Special Springs SRL
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Abstract

本发明涉及用于气缸致动器的受控加压的装置。一种用于连接到单根充气管线的气缸致动器的受控加压的装置(10)，包括：用于控制并恢复起源于加压气体供应部件并送往充气管线(13)的加压气体流的部件(11)；至少一个传感器(14)，其用于检测存在于所述充气管线(13)中气体的压力，并适合于将加压气体传送到连接其的至少一个气缸致动器；电控阀部件(16)，其适合于允许/中断在所述充气管线(13)中的加压气体流；电子控制和管理单元(17)，其连接到所述至少一个压力传感器(14)和所述电控阀部件(16)，以根据来自所述至少一个压力传感器(14)的信号使阀部件(16)的打开/闭合自动化。

Description

用于气缸致动器的受控加压的装置
本发明涉及用于连接到单根充气管线的气缸致动器的受控加压的装置。
目前，使用气缸致动器组以便在用于冲压金属板的操作(例如，用于拉伸或冲切金属板的冲压操作)期间将所述金属板保持在适当的位置上是已知和普遍的。
同一组气缸致动器连接到单根加压气体管线，所述气缸致动器借助于单根加压气体管线被填充有加压气体进行操作。
通常，在操作期间，例如由于密封垫圈的磨损，一组气缸致动器中的气缸致动器经历内部压力下降。
气缸致动器的这些内部压力下降将引起冲压操作以非最佳的方式进行，随之造成制作的金属板的质量问题，这是因为金属板将承受变化的力且因此由于使用不同的致动器而变得不一致。
因为在气缸致动器内部的这些压力下降是不可接受的，所以通常当这些问题出现时，需要暂时停止冲压操作，随之造成生产停止，并手动地恢复在各个气缸致动器中的压力，当然，特别维护所需的冲压操作的延长停止的最坏情况是个例外。
生产停止通常引起对制造商的相当大的经济损失。
本发明的目的是提供用于连接到单根充气管线的气缸致动器的受控加压的装置，其能够消除已知类型的气缸致动器组的上述限制。
在这个目的的范围内，本发明的目的是提供使在短时间内恢复在气缸致动器内部的正确压力而不必停止生产变得可能的装置。
本发明的另一目的是提供自动操作而不需要操作员的手动干预的可编程装置。
这个目的以及在下文中将变得更明显的这些和其它目的由用于对连接到单根充气管线的气缸致动器进行受控加压的装置实现，其特征在于，所述装置包括：
-用于控制并恢复起源于加压气体供应部件并送往充气管线的加压气体流的部件，
-至少一个传感器，其用于检测存在于所述充气管线中气体的压力，并适合于将加压气体传送到连接至其的至少一个气缸致动器，
-电控阀部件，其适合于允许/中断在所述充气管线中的加压气体流，
-电子控制和管理单元，其连接到所述至少一个压力传感器和所述电控阀部件，以根据来自所述至少一个压力传感器的信号使所述阀部件的打开/闭合自动化。
根据在附图中作为非限制性的例子示出的根据本发明的装置的优选但非排他的实施方式，本发明的另外的特征和优点将变得更明显，其中：
图1是根据本发明的装置的例示图；
图2是根据本发明的装置的详细图示。
参考所提到的附图，根据本发明的用于连接到单根充气管线的气缸致动器的受控加压的装置总体上由参考数字10表示。
这样的装置10包括：
-用于控制并恢复起源于加压气体供应部件12并送往充气管线13的加压气体流的部件11，
-传感器14，其用于检测存在于所述充气管线13的气体压力，并适合于将加压气体传送到至少一个气缸致动器，例如，传送到其连接的一组气缸致动器15(例如应用于板金属冲压冲床的一组气缸致动器)，
-电控阀部件16，其适合于允许/中断在所述充气管线13中的加压气体流，
-电子控制和管理单元17，其连接到所述压力传感器14和电控阀部件16，以根据来自所述至少一个压力传感器14的信号使所述阀部件16的打开/闭合自动化。
例如，加压气体供应部件12由已知的和市场上可买到的填充有气体(例如氮气)的瓶构成。
充气管线13包括用于加压气体的一个或多个柔性软管。
例如，压力传感器14由压力控制开关构成，压力控制开关被预先设置以检测在管线13中的最小和最大操作压力，并布置在连接各气缸致动器19的分支的上游。
连接到管线13的这组气缸致动器15包括实质上并联连接的多个气缸致动器19。
在当前的建设性例子中，电控阀部件16由在图2中示意性地清楚示出的三向电动阀构成，并布置在压力传感器14的上游。
电子控制和管理单元17连接到所述压力传感器14和电控阀部件16，以便根据来自压力传感器14的信号使阀部件16的打开/闭合自动化。
用于控制并恢复来自加压气体供应部件12或来自所连接的瓶的加压气体流的部件11包括例如油类型的隔膜型蓄力器(membrane accumulator)20，其布置在气体供应部件12的输出端中并在用于连接到阀部件16的管线21的前方；相应的充油和卸油回路22连接到所述隔膜型蓄力器20，且又包括油回收槽23和相关的泵油部件24，例如具有电动机25的泵，其适合于使隔膜型蓄力器20产生期望压力，以便在蓄力器20的输出端得到例如高于或等于150巴的气体流的压力，其对所连接的这组气缸致动器15的正确操作是有用的。
部件11实际上导致从来自内部存在气体的充气瓶的瓶中气体部分耗尽时、低于用于装载气缸致动器的有用压力的压力(例如150巴的压力)恢复；在低于150巴的压力下从瓶输出的气体聚集在隔膜型蓄力器20内，由于在包含气体的隔膜上的油的压力，气体在由油确定的压力下从隔膜型蓄力器被推到充气管线13中，油又被泵油部件24加压。
气体控制和恢复部件11应被理解为具有本身已知的类型并可以用其它类似的等效加压气体控制和恢复部件代替。
除了压力传感器14以外，在建设性变形中，装置10还包括温度传感器26，其连接到电子控制和管理单元17。
温度传感器26被预先设置以控制在充气线13内的加压气体的温度。
温度传感器26例如由恒温器构成，恒温器适合于在预设温度阈值被超过时启动，气体必须不超过该预设温度阈值。
用于充气管线13的手动排放的阀27也连接到阀部件16。
装置10可连接到多于一组气缸致动器15；例如，图2以示例方式示出第二组气缸致动器28，相应的阀部件29、压力传感器30和温度传感器31与第二组气缸致动器28相关并布置在这组气缸致动器28的充气管线32上，且又借助于第二相应的连接线33连接到同一加压气体流控制和恢复部件11。
根据本发明，一旦在用于冲压金属板的冲床上建立了一组或多组气缸致动器15且一旦充气管线13连接到装置10，那么根据本发明的装置10的操作就如下操作。
设置压力传感器14和31(如果另一组气缸致动器28也存在)或压力控制开关必须被触发时的压力值，指示在充气管线13或32中的两个设定的压力值已被达到。
设置温度传感器26或恒温器(如果存在于充气管线上)的触发温度。
设置例如可以是可编程逻辑控制器(PLC)或本身已知类型的另一计算机的电子控制和管理单元17，使得：
-如果压力传感器14或31检测到充气管线13或32中的压力的下降，则电子控制和管理单元17将警报信号发送到冲压冲床，气缸致动器的组15、或组15和28在冲压冲床处被建立，并启动电控阀部件16或29的打开以将加压气体引入充气管线13或32中，直到压力传感器14或30用信号通知压力的返回值在预设限制内为止；
-当压力传感器14或30指示压力的返回值在预设限制内时，电子控制和管理单元17就启动阀部件16或29的闭合和冲压冲床的重新启动；
-如果温度传感器26检测到高于预设值(例如在70℃和80℃之间)的温度值，则电子控制和管理单元17启动对冲压冲床的停止，以便避免可能不一致的冲压零件。
在活动期间以及在活动结束时，由于布置在充气管线(例如充气管线13)上的模拟压力计(例如34)，才可能使在气缸致动器组15和28内部的压力可视化。
在活动结束时，可能进行以下操作：
-通过操作手动阀27排出存在于充气管线13中的加压气体，
-自动释放存在于充气管线13中的压力，启动限定电控阀部件16的三向阀。
为第一组气缸致动器15描述的这些活动应被理解为也明显可应用于其它组气缸致动器(例如，同一装置10所应用的28)。
可通过在单个设备40中包括电控阀部件16、压力传感器14和可选的温度传感器26，并通过将它连接到用于加压气体流的控制和恢复的部件11来提供根据本发明的类似装置10，加压气体流又来自加压气体供应部件，即，来自瓶，并包含设置有快速耦合连接器的柔性软管。
作为可选方案，电控阀部件16、压力传感器14和可选的温度传感器26可集成在气体控制和恢复部件11中而没有柔性软管的介入。
同时，气体控制和恢复部件11和电子控制单元可安装在单个支持架和运输框架50(例如手推车)上，因而使在工作空间内定位它们并移动它们变得非常容易。
以这种方式，装置10可容易从它所相关的这一组或几组气缸致动器移除并可容易被运输。
根据本发明的装置10在这里被描述为应用于一组或多组气缸致动器，但应理解，它明显也可应用于单个气缸致动器。
实际上，已经发现本发明实现了预期目的和目标。
特别是，本发明提供了允许在短时间内恢复连接到单根充气管线的一组气缸致动器内的正确压力而不必停止生产的装置。
而且，本发明提供了自动操作而不需要操作员的手动干预的可编程装置。
这样设想的本发明容许很多修改和变化，其都在所附权利要求的范围内；所有细节可进一步用其它技术等效元件代替。
实际上，只要所使用的部件与特定的使用以及可能有的形状和尺寸兼容，那么它们就可以是符合任何要求和目前工艺水平的任何一个。

Claims (9)

1.一种用于对连接到单根充气管线的气缸致动器进行受控加压的装置(10)，其特征在于，所述装置(10)包括：
-用于控制并恢复起源于加压气体供应部件并送往充气管线(13)的加压气体流的部件(11)，
-至少一个传感器(14)，其用于检测存在于所述充气管线(13)中的气体的压力，并适合于将加压气体传送到连接至其的至少一个气缸致动器，
-电控阀部件(16)，其适合于允许/中断在所述充气管线(13)中的所述加压气体流，
-电子控制和管理单元(17)，其连接到所述至少一个压力传感器(14)和所述电控阀部件(16)，以根据来自所述至少一个压力传感器(14)的信号来自动化打开/闭合所述阀部件(16)。
2.如权利要求1所述的装置，其特征在于，所述压力传感器(14)由压力控制开关构成。
3.如权利要求1所述的装置，其特征在于，所述电控阀部件(16)由三向电动阀构成。
4.如权利要求1所述的装置，其特征在于，用于控制和恢复来自加压气体供应部件(12)的加压气体流的部件(11)包括隔膜型蓄力器(20)，所述隔膜型蓄力器(20)布置在所述气体供应部件(12)的输出端中并在用于连接到阀部件(16)的管线(21)的前方。
5.如权利要求1所述的装置，其特征在于，它具有合并所述电控阀部件(16)、所述压力传感器(14)和可选的温度传感器(26)的单个设备(40)，所述单个设备(40)借助于设置有快速耦合连接器的柔性软管连接到用于控制和恢复加压气体流的所述部件(11)。
6.如权利要求5所述的装置，其特征在于，包括在设备(40)内的所述电控阀部件(16)、所述压力传感器(14)和所述可选的温度传感器(26)与所述气体控制和恢复部件(11)集成而没有柔性软管的介入。
7.如权利要求5所述的装置，其特征在于，所述温度传感器(26)连接到所述电子控制和管理单元(17)，并被预先设置以监测在所述充气管线(13)中的加压气体的温度。
8.如权利要求1所述的装置，其特征在于，用于所述充气管线(13)的手动排放的阀(27)连接到所述阀部件(16)。
9.如权利要求1所述的装置，其特征在于，它能够连接到一组或多组气缸致动器(15、28)。
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