CN101855456A - 阀装置 - Google Patents
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- CN101855456A CN101855456A CN200880115871A CN200880115871A CN101855456A CN 101855456 A CN101855456 A CN 101855456A CN 200880115871 A CN200880115871 A CN 200880115871A CN 200880115871 A CN200880115871 A CN 200880115871A CN 101855456 A CN101855456 A CN 101855456A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
- B23B31/302—Hydraulic equipment, e.g. pistons, valves, rotary joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/005—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a force, a pressure or a deformation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
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- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
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- F15B2211/30—Directional control
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- F15B2211/30505—Non-return valves, i.e. check valves
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- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F15B2211/3056—Assemblies of multiple valves
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- F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F15B2211/00—Circuits for servomotor systems
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- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3138—Directional control characterised by the positions of the valve element the positions being discrete
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B2211/00—Circuits for servomotor systems
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- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
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- F15B2211/00—Circuits for servomotor systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B2211/00—Circuits for servomotor systems
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- F15B2211/7051—Linear output members
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- F15B2211/7054—Having equal piston areas
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
本发明涉及一种阀装置,用于特别在车床中对一个用于待夹紧的工件的夹紧装置(9)进行夹紧压力调整和监测,具有至少一个调压阀(1A、1B),通过该调压阀实施对夹紧装置(9)的夹紧压力调整,并且具有至少一个压力传感器(6A、6B),该压力传感器检测夹紧装置(9)的相应的夹紧压力,所述夹紧压力能够相对于一个可预先规定的额定夹紧压力进行校正。利用该阀装置,可以调整安全技术上重要的夹紧压力并且即使在加工期间也能在校正的意义上对其进行监测,特别是使其保持或降低。
Description
技术领域
本发明涉及一种阀装置,用于特别在车床中对一个用于待夹紧工件的夹紧装置进行夹紧压力调整和监测。
背景技术
在现代的机床特别是车床中,待切削加工的工件通常通过可液压操纵的特别是夹紧缸形式的夹紧装置夹紧和/或借助可液压操纵的所谓尾架顶尖座套筒(Reitstockpinolen)反向保持,其中,在达到夹紧压力之后才开动相应的机床。现在如果在用机床加工期间,在夹紧装置上的夹紧压力由于故障下降,那么这会导致夹紧装置松开并且然后释放的工件可能导致机床的严重损坏并对机床操作者的安全造成严重威胁。
除了对可靠的夹紧力的这种夹紧压力监测外,有意义的还在于要降低夹紧压力并因此降低夹紧力,以防止对切削加工的工件造成损坏,如果该工件例如根据加工方式从“实心车削”获得降低的壁厚几何形状的话,这种加工方式在夹紧力保持不变的情况下,首先与所使用的实心材料相关,会导致在壁厚降低并因此减弱的工件几何形状上的变形。
发明内容
从这种现有技术出发,本发明的目的在于,在机床如车床上夹紧安装待车削加工的工件时,能够提高安全性以及能够预防工件意外损坏。该目的通过一种具有权利要求1总体所述特征的阀装置得以实现。
依据本发明的阀装置的特征在于,该阀装置具有至少一个调压阀,通过该调压阀实施对夹紧装置的夹紧压力调整,其中,存在至少一个压力传感器,该压力传感器检测夹紧装置的相应的夹紧压力,所述夹紧压力能够被校正到一个可预先规定的额定夹紧压力。利用该阀装置可以调整安全技术上重要的夹紧压力并且即使在加工期间也能在校正的意义上对其进行监测,特别是使其保持不变或降低。
借助相应的压力传感器测量夹紧装置的实际压力,夹紧装置是待液压操纵的夹紧缸形式的、待液压操纵的尾架顶尖座套筒形式的。这种实际夹紧压力然后应相当于一个预先规定的额定夹紧压力,后者由例如用于机床的机床控制装置形式的控制装置可预先规定。然后通过控制最好减压阀形式的调压阀,可以借助通过控制装置的控制将夹紧装置的压力调整到恒定不变的压力值或甚至降低。因为原则上每个待加工的工件,根据所要求的加工状态存在不同的夹紧压力预定值,所以这些预定值由机床的控制装置,也就是由控制装置根据加工进展作为额定夹紧压力同时预先规定。由此一方面达到可靠的夹紧力监测,以避免工件意外从夹紧装置中松开。此外还提供在需要时降低夹紧力的可能性,以防止在加工期间由于过高调整的夹紧-压力而损坏工件。
依据本发明的阀装置的其他具有优点的构型为其他从属权利要求的主题。
附图说明
下面借助附图的不同实施例对本发明的阀装置进行详细说明。在此,以液压线路图的方式示出原理图。其中:
图1依据本发明的阀装置在使用一个调压阀情况下的第一实施形式;
图2在使用两个调压阀情况下依据图1图示的第二实施形式;以及
图3与图1和图2的图示相应的、但采用二次压力保护且取消换向阀的情况下依据本发明的阀装置的第三实施形式。
具体实施方式
在三种实施形式中,原则上使用可对照的部件,特别是阀部件并且可对照的部件用同一附图标记。对此主要部件如下:
1A、1B 具有机械自行制动的调压阀
2 节流板
4A、4B 具有止动(自行制动)位置的换向阀
5 止回阀形式的反压闭锁装置
6A、6B 压力传感器
7 回转接头
8 两个止回阀
9 构成为同步缸的夹紧缸
10 具有小传动比的卡盘(无自行制动)
11 液压蓄能器
12 控制装置
在附图中用9标记的夹紧缸构成为所谓的液压同步缸并且卡盘10的卡爪沿一个移动方向相互移近而沿相反的方向则向外移开。这样利用液压操纵力既可以通过卡盘的卡爪内径,也可以沿另一操纵方向通过卡盘的卡爪外径可松开地固定待切削加工的工件(未示出)。
用7标记的回转接头允许夹紧装置在至少一个运动或摆动轴上摆动。已知如下的用于液压输送和排出管线的回转接头在现有技术中有大量的实施形式,因此在这里不再对其进行详细探讨。无论如何这样通过回转接头7即使在夹紧缸9随同卡盘10摆动的情况下也确保夹紧缸9的工作室的液压供给。由夹紧缸9和卡盘10构成的夹紧装置仅示例性地示出;其他类型的夹紧装置(尾架顶尖座套筒)在这里同样可以用于还要介绍的阀装置。
相应调压阀1A、1B的输出端上的用2标记的节流板用于与夹紧缸9的容积量匹配体积流量,该容积量根据加工情况对于机床也可以不同。用P标记的流体管线与例如由一个液压供给泵形成的液压供给装置(未详细示出)连接。与泵管线P连接的用11标记的液压蓄能器然后允许在停电的情况下供给系统压力。用T标记的油箱连接管线或油箱管线允许液压油形式的工作介质回流到油箱内,从那里通过泵可以进行液压供给,同时在形成一个液压回路。这种设置也很常见,从而在这里对其不再进行详细探讨。
在图1的实施形式中,用于夹紧缸9的夹紧压力可以通过带机械自行制动的调压阀1A进行调整,其中,数值可显示在一个常用的电子控制装置12的一个未详细示出的数字显示屏上。在图1中作为黑箱示出的控制装置12因此为调整可预先规定的夹紧压力值而控制调压阀1A的电动机M,该控制装置此外还与压力传感器6A、6B连接,以便这样检测处于网络接头A、B内实际压力,网络接头另一方面导流地通过止回阀8分别与夹紧缸9的所属工作室连接。就这一点而言,借助控制装置12,操作者因此可以自由地预先规定用于调压阀1A的相应压力值或通过控制装置12的相应程序进行控制,其中,为待夹紧的不同工件设置不同的程序,这些程序也在预先规定的范围内是可自由选择的。因此就这一点而言,采用这种手动或通过机床控制装置的相应程序预先规定的调整的压力并且在继续的加工范围内连续对其进行监测。如果例如由于技术故障夹紧缸9上的夹紧压力下降,那么这通过分别可配备的压力传感器6A、6B可检测,并且然后相应的故障信号发送到控制装置12,结果是该控制装置将在加工机床上所配备的用于夹紧装置的机床传动机构断开,这同时进行。这样可以避免对加工机床和/或对待加工的工件造成损坏。根据选择的程序,既可以在内张紧力情况下也可以在外张紧力情况下借助夹紧缸9的卡盘10监测夹紧压力。
在阀1A上进行夹紧压力调整期间,通过操纵阀4A而不操纵阀4B进行本身的夹紧。所采用的阀4A、4B以具有止动(自行制动)位置的换向阀形式构成,其中,这些换向阀分别通过可配备的电动控制磁铁S1、S2、S3和S4进入相应的操纵位置内,以便这样能够移动夹紧缸9。如果操纵阀4A,那么夹紧压力监测通过压力传感器6A进行,而同一时间在压力传感器6B上不得存在反压力;否则这已经存在对故障的提示。如果要使夹紧缸9泄压,例如为了释放待加工的工件,然后进行阀4B的切换,而阀4A则返回到其起始位置内。如按图1所示的那样,在此相应换向阀4A、4B的输出端流体密封地通过相应的密封塞被阻断,因为就此而言该输出端对于这里所设置的功能是没有必要的。
依据图1的功能图,两个止回阀8这样相互错接,以致它们可以相对打开并且在其关闭的输入端上既与可配备的网络接头A连接,也与网络接头B连接。作为止回阀构成的反压闭锁装置5防止了在油箱管线T内可能构成的动压头改变意外在夹紧缸9上的夹紧力。用于依据本发明的阀装置的阀部件为标准构件和就此而言能够低成本地提供以及此外应用中是功能可靠的。此外,调压阀1A一方面与具有液压蓄能器11的流体管线P连接并且通过节流板2分别与换向阀4A和4B导流连接。
利用依据图1的线路如此描述的阀装置,在夹紧压力下降时可以停机,以满足如此高的安全要求。此外,按图1的解决方案还允许使夹紧力降低,以便有助于避免工件变形,这种变形例如可能由此出现,即加工期间首先夹紧一个实心型材工件,然后它在车削加工时变成空心型材,随着壁厚的减少,在夹紧力保持不变的情况下则会出现变形。
为此按照图1的实施例还在优选构成为比例减压阀的阀1A上设置一种夹紧压力调整。夹紧过程经由夹紧缸9通过在阀4B保持在其在图2中所示位置期间操纵阀4A来实现。然后在网络接头A内对在压力传感器6A上的夹紧压力进行监测,而同时在压力传感器6B上不允许或仅允许存在很小的反压力。泄压然后通过切换阀4B进行,而阀4A依据图1的图示重新返回到其起始位置内。在本说明书的框架内,原则上假设,通过在同时从网络管线B排出液压油情况下在网络管线A内的加载,经由夹紧缸9和卡盘10导入一个夹紧过程,其中,通过这种功能的颠倒实施一个泄压过程。但在从与卡盘10的卡爪相关的内张紧力切换到外张紧力过程中,然后相关的实施形式以相反的实施方式也适用。
对于依据图1的图示只具有一个调压器1A的夹紧压力降低来说,正如已经介绍的那样,在阀1A上的夹紧压力调整借助控制装置12进行而泄压通过切换阀4A进行。同时借助压力传感器6A、6B进行夹紧压力监测,这些压力传感器将其数值传送到常用结构形式的控制装置12。如果现在切换阀4B,那么在网络管线A、B内得到夹紧压力的一种平衡,止回阀8二者受到控制并且在夹紧缸9内进行一种压力平衡。因为在卡盘内不出现自行制动,所以夹紧力降到零。
在调压器1A上的夹紧压力水平现在可以降到所要求的水平和夹紧压力在管线A和B内并由于打开止回阀8还在夹紧缸9内下降。夹紧力然后保持在零。在实施向回切换阀4B后,在网络管线B内和在夹紧缸9的泄压侧上的压力下降,并通过在网络管线A内存在的压力,在卡盘10上,夹紧力重新在较低水平上建立。这样实现所述的夹紧力最小化。
按照图1的解决方案因此使用了两个两位四通(4/2)换向阀4A、4B,其中,朝图2的视线观察,总是左边的输出端通入盲接头(Blindanschluss)中。此外阀4A、4B还分别与可配备的反压闭锁装置5连接,后者分别与油箱管线T连接。压力传感器6A、6B的输出端为分析相应的测量信号与用于降低夹紧压力的作为黑箱示出的机床控制装置12连接,其中,控制装置12为预先规定一个压力额定值具有未详细示出的手动输入或具有一个可自由编程的流程图(程序)。
如果不能确保,在夹紧压力平衡情况下,摩擦足够用于使工件本身保持在卡盘10内,就出现了按照图2的具有两个调压器1A、1B的实施形式。于是这样的夹紧压力降低设定,在调压阀1B上将一个压力调整到紧低于在网络管线A内的水平。然后随着阀4B的切换,网络管线B内建立一个反压力,而止回阀8二者受到控制。因为在卡盘10内没有出现自行制动,所以夹紧力降到一个很低的数值。在此,在阀1A和1B上的压力下降,直至网络管线A内达到所要求的水平。在阀1A与1B之间的压差在此必须保持不变。由于打开止回阀8,夹紧缸9内的夹紧压力也下降,结果是夹紧力在此保持在恒定的低水平上。
通过向回切换阀4B,在网络管线B内和在夹紧缸9的泄压侧上的压力下降。通过在网络管线A内的压力,然后夹紧力在卡盘10上重新建立到较低水平上。
取代使用两位四通(4/2)换向阀,按照图2的实施形式装备有电动机驱动的两位三通(3/2)换向阀4A、4B。此外,在图1和2中所示的2路调压器也可以通过3路调压器取代。
按照图3的实施形式与前面两种实施形式的区别在于,既不需要依据按图1图示的具有止动位置的换向阀,也不需要依据按图2图示的实施形式的电动机驱动的两位三通(3/2)换向阀。确切地说,在按图3的解决方案中,仅使用两个比例减压阀1A、1B,它们通过相应的反压闭锁装置5获得一种二次减压保护。出于简化图示的原因,在图2和图3中,在那里的实施形式中未标出控制装置12及其相应的连接部位,但就此而言,关于按图1的解决方案,所述各实施方式都适用。
依据本发明的阀装置就此而言具有的优点是,该阀装置以积木式结构方式可以事后安装在机床中已有的工件夹紧装置上。由于阀装置的积木式的模块结构,该阀装置占用很少的结构空间并由于可以使用标准构件而低成本地实现。
Claims (11)
1.阀装置,用于特别在车床中对一个用于待夹紧的工件的夹紧装置(9)进行夹紧压力调整和监测,具有至少一个调压阀(1A、1B),通过该调压阀实施对夹紧装置(9)的夹紧压力调整,并且具有至少一个压力传感器(6A、6B),该压力传感器检测夹紧装置(9)的相应的夹紧压力,所述夹紧压力能够相对于一个可预先规定的额定夹紧压力进行校正。
2.按权利要求1所述的阀装置,其特征在于,相应的调压阀是一个减压阀(1),特别是一个比例减压阀(1A、1B)。
3.按权利要求1或2所述的阀装置,其特征在于,相应的调压阀(1A、1B)设有一种机械自行制动,该自行制动最好通过一个由控制装置可控制的伺服电动机(M)的自行制动传动机构构成。
4.按权利要求1至3之一所述的阀装置,其特征在于,相应的压力传感器(6A、6B)与一个电子控制装置(12)连接,或压力传感器为分别可以自由编程的电子压力开关的一部分。
5.按权利要求1至4之一所述的阀装置,其特征在于,为了供给夹紧装置(9),使用至少两个两位三通换向阀(4A、4B)或两个两位四通换向阀(4A、4B)。
6.按权利要求1至5之一所述的阀装置,其特征在于,两个换向阀(4A、4B)和/或调压阀(1A、1B)可以彼此独立地切换。
7.按权利要求5或6所述的阀装置,其特征在于,相应的换向阀(4A、4B)在可配备的调压阀(1A、1B)与夹紧装置(9)之间切换到一个液压供给回路内。
8.按权利要求1至7之一所述的阀装置,其特征在于,夹紧装置(9)具有两个止回阀(8),这些止回阀相互导流地连接并且朝相应减压阀(1A、1B)方向占据其关闭位置。
9.按权利要求8所述的阀装置,其特征在于,两个止回阀(8)导流地与可配备的换向阀(4A、4B)的一个相应输出端连接。
10.按权利要求1至9之一所述的阀装置,其特征在于,一个节流板(2)用于与当时使用的夹紧装置(9)的容积量相配合,该节流板设置在相应减压阀(1A、1B)的输出端侧上。
11.按权利要求1所述的阀装置,其特征在于,在取消换向阀的情况下,该阀装置具有两个调压阀(1A、1B)。
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2008
- 2008-08-26 CN CN2008801158710A patent/CN101855456B/zh not_active Expired - Fee Related
- 2008-08-26 WO PCT/EP2008/006976 patent/WO2009062558A1/de active Application Filing
- 2008-08-26 ES ES08801707T patent/ES2391429T3/es active Active
- 2008-08-26 US US12/734,563 patent/US8739681B2/en not_active Expired - Fee Related
- 2008-08-26 JP JP2010533446A patent/JP2011502806A/ja not_active Withdrawn
- 2008-08-26 PL PL08801707T patent/PL2220377T3/pl unknown
- 2008-08-26 EP EP20080801707 patent/EP2220377B1/de active Active
- 2008-08-26 EP EP12004443.3A patent/EP2518331B1/de active Active
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2014
- 2014-01-23 JP JP2014010579A patent/JP2014078280A/ja active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106794563A (zh) * | 2014-07-16 | 2017-05-31 | 海勒机械制造兄弟有限公司 | 夹紧装置的夹紧单元和夹盘单元 |
CN108291562A (zh) * | 2015-12-03 | 2018-07-17 | 索特精密机械有限公司 | 用于刀具转塔的监控装置 |
CN108291562B (zh) * | 2015-12-03 | 2021-03-30 | 索特精密机械有限公司 | 用于刀具转塔的监控装置 |
CN105971977A (zh) * | 2016-06-03 | 2016-09-28 | 南通纺都置业有限公司 | 一种手指油缸不同油压下夹持力测试装置 |
CN108591139A (zh) * | 2018-03-13 | 2018-09-28 | 西安理工大学 | 一种液压动力卡盘夹紧力控制系统及夹紧力控制方法 |
CN116700374A (zh) * | 2023-08-03 | 2023-09-05 | 合肥市富林物联网技术股份有限公司 | 一种正负压力和差压力变送控制系统及其装置 |
CN116700374B (zh) * | 2023-08-03 | 2023-10-24 | 合肥市富林物联网技术股份有限公司 | 一种正负压力和差压力变送控制系统及其装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2009062558A1 (de) | 2009-05-22 |
US8739681B2 (en) | 2014-06-03 |
EP2220377B1 (de) | 2012-10-03 |
JP2014078280A (ja) | 2014-05-01 |
EP2518331B1 (de) | 2017-11-22 |
DE102007054503A1 (de) | 2009-05-20 |
CN101855456B (zh) | 2013-12-18 |
JP2011502806A (ja) | 2011-01-27 |
ES2391429T3 (es) | 2012-11-26 |
EP2518331A1 (de) | 2012-10-31 |
EP2220377A1 (de) | 2010-08-25 |
US20100229970A1 (en) | 2010-09-16 |
PL2220377T3 (pl) | 2013-03-29 |
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