EP4054810A1 - Unterdruckhandhabungsvorrichtung - Google Patents
UnterdruckhandhabungsvorrichtungInfo
- Publication number
- EP4054810A1 EP4054810A1 EP20793585.9A EP20793585A EP4054810A1 EP 4054810 A1 EP4054810 A1 EP 4054810A1 EP 20793585 A EP20793585 A EP 20793585A EP 4054810 A1 EP4054810 A1 EP 4054810A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- module
- valve
- vacuum
- gripper
- interface
- 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.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 claims description 69
- 239000012530 fluid Substances 0.000 claims description 18
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/0025—Means for supplying energy to the end effector
- B25J19/0029—Means for supplying energy to the end effector arranged within the different robot elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/04—Gripping heads and other end effectors with provision for the remote detachment or exchange of the head or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/06—Gripping heads and other end effectors with vacuum or magnetic holding means
- B25J15/0616—Gripping heads and other end effectors with vacuum or magnetic holding means with vacuum
- B25J15/0625—Gripping heads and other end effectors with vacuum or magnetic holding means with vacuum provided with a valve
Definitions
- the invention relates to a modular vacuum handling device and in particular to a valve module for use in such a vacuum handling device.
- Vacuum handling devices are used to hold and / or handle objects, for example to transport workpieces between different processing locations or to hold a workpiece during its processing.
- vacuum handling devices made up of individual structural units comprising a gripper base body with a suction side for sucking in an object, several ejectors for generating negative pressure and a valve bank for controlling the ejectors.
- the ejectors and the valve bank are conventionally arranged next to one another on the gripper base and are connected to one another in terms of flow and pressure via hose connections.
- vacuum handling devices are only flexible to a limited extent and can generally only be adapted to different requirements by conversion.
- the invention is concerned with the object of providing a vacuum handling device which is compact and can be used flexibly.
- This task is accomplished by a
- the vacuum handling device is designed as a modular system (in the sense of an entity of modules) comprising at least two modules.
- the at least two modules can be or are fluidically connected to one another via module interfaces. This enables one to participate in the
- Vacuum handling device applied supply pressure (negative pressure or positive pressure) to pass through the various modules in a simple manner.
- a first module of the at least two modules is designed as a valve module.
- a second module of the at least two modules is designed as a gripper module.
- the vacuum handling device thus comprises at least one valve module and one gripper module.
- the valve module comprises at least one pneumatic supply connection for supplying negative or positive pressure to the negative pressure handling device.
- the at least one pneumatic supply connection is designed, in particular, to be connected to an external negative or positive pressure supply line, preferably via a standard pneumatic connection.
- the valve module further comprises at least one module interface that is flow- and pressure-connected to the at least one pneumatic supply connection via a fluid line for connection to a module interface of a further module, in particular for supplying the further module with negative or positive pressure.
- the valve module comprises a valve device with at least one valve unit for controlling an air flow between the at least one pneumatic supply connection and the at least one module interface of the valve module.
- the at least one valve unit is designed in particular to create a flow path between the at least one pneumatic supply connection and the at least one Module interface to be enabled or disabled as required. This makes it possible to selectively enable or disable an underpressure or overpressure supply of a further module connected to the valve module via the at least one module interface.
- the valve module further comprises a control device which is designed to control the valve device as a function of a control signal.
- the valve module comprises at least one control signal connection for providing control signals to the control device.
- the control signals can be electrical signals.
- the at least one control signal connection is then designed, in particular, as an electrical connection. It is also conceivable that the control signals are pneumatic signals.
- the at least one control signal connection is then designed, in particular, as a pneumatic connection.
- the gripper module comprises at least one module interface for connection to a module interface of a further module, in particular for connection to the at least one module interface of the valve module or to a module interface of a module arranged between the gripper module and valve module.
- the gripper module further comprises at least one pneumatically actuated gripper unit which is fluidly and pressure-connected to the at least one module interface of the gripper module via a fluid line.
- the gripper unit can be, for example, a suction gripper unit or a magnetic gripper unit (see below).
- the at least two modules overall have a disk-like basic shape and are in this respect designed as module disks.
- the disc shape allows the module discs to be stacked on top of one another along a stacking axis to form a module stack.
- the module interfaces are designed and arranged in such a way that module interfaces of two modules assigned to one another establish a fluid connection when the modules are stacked, in particular snap into one another or the like.
- the at least one pneumatic supply connection and / or the at least one control signal connection are arranged on a lateral surface of the valve module, which limits the valve module laterally to the stack axis, that is to say in the radial direction laterally to the stack axis.
- Such a vacuum handling device is compact.
- a configuration of the modules as module disks enables a supply pressure applied to the at least one pneumatic supply connection to be channeled directly through the at least two modules in the stacking direction and at the same time to easily tap a medium from the side of a module or to supply it to a module.
- module interfaces assigned to one another already establish a fluid connection when the modules are stacked, there is no need to regularly connect the module interfaces by means of additional fluidic connection elements (eg hoses) after the modules have been stacked, which is costly and time-consuming.
- Such a vacuum handling device can therefore be assembled particularly quickly. In particular, it enables such a configuration that
- the vacuum handling device can be flexibly expanded in a modular manner without complex conversion measures in order to meet different requirements. This is particularly favored by the fact that the gripper module has no sensors and no control device.
- the control devices required for activating and deactivating the at least one gripper unit are located in the valve module, which promotes an inexpensive and low-maintenance design of the vacuum handling device.
- such a configuration makes it possible to use differently designed gripper modules with the same valve module. For example, it is conceivable that a standard valve module is kept available, which can be connected to different gripper modules in order to flexibly meet different requirements that arise, for example, from the size or nature of an object to be held.
- the valve module can optionally have at least one additional connection with the at least one pneumatic supply connection Have flow- and pressure-connected pneumatic connection for tapping overpressure or underpressure. This makes it possible to supply additional structural units with overpressure or underpressure in a simple manner.
- the at least one pneumatic supply connection is preferably arranged on the lateral surface of the valve module.
- valve module can also have a ventilation connection which is coupled to the valve device.
- valve device can in particular be designed in such a way that the at least one module interface of the valve module can optionally be acted upon with supply pressure or can be ventilated.
- the ventilation connection is preferably arranged on the lateral surface of the valve module.
- the modules can have corresponding connecting elements.
- the connecting elements are preferably designed in such a way that a connection can be established, released and re-established. This makes it possible to flexibly reassemble the vacuum handling device in a simple manner, in particular to expand it in a modular manner. It is conceivable, for example, that the connecting elements form a bayonet lock. It is also conceivable that the connecting elements are pneumatically actuated locking pistons. It is also possible for the connecting elements to form a magnetic connection. To seal a fluid connection between module interfaces assigned to one another, it is also advantageous if the module interfaces have sealing elements, for example in the form of O-rings or foam seals.
- the modules are each designed as a structural unit with its own module housing with a bottom surface, a cover surface and a lateral surface delimiting the outside.
- the functional components of the modules are then protected by the respective module housing.
- the bottom surface and the top surface are in particular essentially flat.
- the jacket surface preferably runs around the stack axis and is in particular aligned parallel to the stack axis.
- the module interfaces of a module are preferably arranged on those sides of the module housing of this module which, in the stacked state of the modules, face a module housing of a further module.
- the module interfaces are arranged on the cover surface and / or on the bottom surface of a module housing.
- the fluid connections between the modules formed by the module interfaces then run essentially along the stack axis. This makes it possible to channel overpressure or underpressure directly through the individual modules.
- module interfaces of two modules are assigned to one another arranged on the corresponding module housings in such a way that these module interfaces are aligned with one another when the modules are stacked.
- a preferred embodiment consists in that the module housings of the various modules, viewed in cross section along the stack axis, have essentially the same area and essentially the same outer contour.
- a module stack then has a uniform outer contour. It is conceivable that the module housings of the various modules are designed to be rotationally symmetrical to the stack axis, in particular to have a circular cross section. It is also conceivable that the module housings of the various modules have a polygonal cross-sectional area. An orientation of the vacuum handling device can then be determined in a simple manner.
- the at least one gripper unit can be used as a
- Suction gripper unit can be formed which comprises at least one suction point that can be acted upon by negative pressure for sucking up an object.
- the at least one suction point can be designed as a suction opening in a module housing of the gripper module. However, it can also be equipped with a separate suction head (for example elastomer suction cups, suction bells, bellows suction cups) or other suction gripper devices.
- the at least one suction point is connected to the at least one module interface of the gripper module via a suction channel flow and pressure connected. The at least one suction point can then be subjected to negative or positive pressure via the at least one module interface, so that an object can be sucked in and put down again.
- the at least one gripper unit can be designed as a pneumatically actuated magnetic gripper unit.
- the magnetic gripper unit comprises one or more permanent magnets arranged in a pole shoe, which by applying negative or positive pressure to the magnetic gripper unit between an activated position (in which an object can be held) and a deactivated position (in which a Object can be deposited) is transferable.
- the at least one magnetic gripper unit is fluidly and pressure-connected to the at least one module interface of the gripper module via at least one suction channel.
- the valve module has at least two module interfaces and at least two valve units (see below).
- the vacuum handling device further comprises a
- Vacuum generation module which can be or is arranged between the valve module and the gripper module.
- the negative pressure generation module comprises at least one negative pressure generation unit for generating negative pressure by means of compressed air. This can in particular be a vacuum ejector.
- the at least one negative pressure generation unit comprises an overpressure inlet for supplying the at least one negative pressure generation unit with compressed air, a suction inlet for sucking in a medium, in particular air, and an overpressure outlet for outputting the compressed air and possibly the announced medium.
- the vacuum generation module comprises at least one overpressure module interface that is flow- and pressure-connected to the overpressure input via a fluid line.
- the at least one overpressure module interface is designed to be connected to the at least one module interface of the valve module.
- the at least one pneumatic supply connection of the valve module is then coupled in particular to a compressed air supply.
- the negative pressure generation module further comprises at least one negative pressure module interface that is flow and pressure connected to the suction inlet of the at least one negative pressure generation unit via a fluid line.
- the at least one vacuum module interface is designed to be connected to a module interface of a further module, in particular the at least one module interface of the gripper module, to be connected. It is therefore used to supply the further module with negative pressure.
- Such a negative pressure generation module makes it possible to generate a negative pressure required for actuating the at least one gripper unit in the
- the negative pressure generation module does not include any sensors and no control device.
- the control of the vacuum handling device is located, in particular exclusively, in the valve module.
- the negative pressure generation module can further comprise at least one lateral negative pressure outlet, which is flow- and pressure-connected to the suction inlet of the at least one negative pressure generation unit via a fluid line, in particular arranged on a lateral surface of the negative pressure generation module, for tapping negative pressure.
- a fluid line in particular arranged on a lateral surface of the negative pressure generation module, for tapping negative pressure.
- the negative pressure generation module can further comprise at least one ventilation valve for ventilating the at least one negative pressure module interface. This makes it possible to interface with the negative pressure module connected gripper module to ventilate quickly.
- the at least one suction point can then be ventilated so that an object that has been sucked in can be quickly deposited.
- the negative pressure generation module can furthermore have at least one positive pressure leadthrough for carrying out positive pressure, in particular compressed air, from a cover surface of the negative pressure generation module facing the valve module when the modules are stacked to a bottom surface of the opposite the cover surface
- the overpressure leadthrough opens on the cover surface of the underpressure generating module into the at least one overpressure module interface, which is designed to be connected to the at least one module interface of the valve module.
- the positive pressure leadthrough opens into at least one positive pressure module interface, which is designed to be connected to a positive pressure module interface of a further module, in particular the gripper module.
- the vacuum generation module can further comprise at least one non-return flap, which is arranged such that when the
- Vacuum generation module a ventilation of the suction inlet is suppressed by the vacuum generation module.
- a negative pressure threshold value is reached at the suction inlet (eg negative pressure, which is required to securely hold an object on a suction gripper unit of the gripper module) deactivate the negative pressure generation module and continue to maintain the negative pressure in the suction gripper unit. This promotes efficient operation of the vacuum handling device.
- the vacuum handling device can further comprise a ventilation module which can be or is arranged on the gripper module, in particular between the gripper module and the valve module or between the gripper module and the vacuum generating module.
- the ventilation module comprises at least one
- Negative pressure feed-through for carrying out negative pressure from a bottom surface of the ventilation module facing the gripper module in the stacked state of the modules to a cover surface of the ventilation module opposite the bottom surface.
- the vacuum feed-through is used to pass through vacuum from valve module to gripper module, or from vacuum generating module to gripper module.
- the vacuum lead-through on the bottom surface of the ventilation module opens into at least one vacuum module interface for connection to the at least one module interface of the gripper module.
- the vacuum lead-through opens into at least one vacuum module interface Connection to a module interface of a further module, in particular to the at least one module interface of the valve module or the at least one negative pressure module interface of the negative pressure generating module.
- the ventilation module further comprises at least one pneumatically controllable ventilation valve which is designed to ventilate the vacuum feedthrough of the ventilation module in a valve position.
- a gripper module connected to the vacuum feedthrough via the vacuum module interface is then also ventilated. Because the ventilation module is arranged on the gripper module, the gripper module can be ventilated particularly quickly, so that an object can be deposited quickly.
- the ventilation valve is connected to at least one lateral ventilation connection.
- the ventilation module has an overpressure module interface on the cover surface facing the valve module or the negative pressure generation module for connection to the at least one module interface of the valve module or for connection to an overpressure module interface of an overpressure leadthrough of the negative pressure generation module (see above).
- the ventilation valve can then be adjusted by changing the pressure at the module interface of the valve module or at the overpressure module interface of the Vacuum generation module are controlled.
- the ventilation module can be controlled indirectly by switching the valve device located in the valve module. Then in particular no sensors and no control devices need to be kept in the ventilation module in order to control the ventilation valve, which favors a compact and low-maintenance design of the vacuum handling device.
- the valve module can have corresponding fastening elements.
- the vacuum handling device has a fastening module that can be or is connected to the valve module for fastening the
- the fastening module can be arranged or arranged on that side of the valve module which faces away from the further modules.
- the fastening module forms the top module of the module stack.
- the valve module can comprise at least one fluidic measuring module interface.
- the Control device of the valve module have at least one sensor coupled to the measuring module interface for determining a pressure applied to the measuring module interface.
- the control device then further comprises a controller, at least indirectly coupled to the at least one sensor, for controlling the valve device as a function of a pressure determined by the sensor.
- the fluidic measuring module interface is designed in particular to be connected to a measuring module interface of a further module in order to determine the pressure in a further module, in particular a negative pressure applied to the at least one gripper unit of the gripper module. This makes it possible to monitor a gripping process and to regulate it by controlling the valve device.
- the gripper module can then have at least one measuring module interface which is fluidly and pressure-connected to the at least one suction gripper unit. This makes it possible to determine a pressure applied to the suction gripper unit by means of the at least one sensor.
- the vacuum generation module can have at least one measuring
- Include module interface which is fluidly and pressure-connected to the suction inlet of the at least one negative pressure generating unit via a fluid line. Then a negative pressure applied to the suction inlet - and thus a negative pressure applied to the at least one gripper unit can be determined indirectly.
- Has module interfaces which are fluidly and pressure-connected to the at least one pneumatic supply connection.
- the valve device then has, in particular, two valve units, a first valve unit being designed to provide an air flow between the at least one pneumatic
- the valve module comprises two separately controllable pressure circuits or pressure channels.
- the gripper module then comprises, in particular, two module interfaces for connection to the two module interfaces of the valve module.
- Such a configuration is also advantageous for controlling a gripper module with a magnetic gripper unit.
- a configuration of the valve module with two module interfaces is also advantageous for vacuum handling devices with a vacuum generating module.
- the negative pressure generating module can then have two positive pressure module interfaces on its cover surface facing the valve module for connection to one of the two module interfaces of the valve module.
- a first overpressure module interface is that overpressure module interface which is connected to the overpressure input of the at least one negative pressure generating unit.
- the at least one vacuum generating unit can then be operated via the first pressure circuit.
- the second overpressure module interface of the negative pressure generation module can, for example, be connected to a second negative pressure generation unit of the
- the second overpressure module interface is also possible for the second overpressure module interface to be connected to the at least one underpressure module interface on the bottom surface of the underpressure generating module via a fluid line. Then the at least one vacuum module interface and thus a gripper module connected via the vacuum module interface can be ventilated via the second pressure circuit, in particular subjected to excess pressure become. This makes it possible to have one at a
- Overpressure module interface of the negative pressure generation module are connected to the overpressure input of the negative pressure generation unit. It is then conceivable that only one pressure circuit is activated in applications in which comparatively low demands are placed on the negative pressure. The negative pressure generating unit is then only supplied with comparatively little compressed air. In applications where a high vacuum is required (e.g. for sucking in objects that are impervious to suction), the first and second pressure circuits can be activated together. The at least one negative pressure generating unit can then be supplied with compressed air via both positive pressure module interfaces. Such a configuration thus makes it possible to actuate the vacuum generating unit as required, which ensures efficient operation of the
- valve module with two module interfaces and two valve devices, it is also preferred if the valve module has two measuring module interfaces and in particular two sensors. This makes it possible to monitor and control the two pressure circuits independently of one another.
- the vacuum handling device is that the modules with the exception of the gripper module and the fastening module - that is, the valve module, an optionally provided vacuum generation module and an optionally provided ventilation module - each have one
- the supply pressure feedthroughs of the modules can in particular be connected or connected to one another via corresponding supply pressure module interfaces in such a way that, when the modules are in the stacked state, they jointly form a supply pressure channel penetrating the module stack in the stacking direction.
- all modules with the exception of the fastening module can be supplied with supply pressure. This makes it possible to tap supply pressure on these modules, which enables additional components to be supplied with the supply pressure.
- valve module which is designed for use in a vacuum handling device described above.
- the valve module is designed in such a way that it enables the construction of a vacuum handling device of the type mentioned with other modules.
- FIG. 1 is a sketched illustration of an embodiment of a vacuum handling device in a perspective exploded view
- FIG. 2 shows a schematic representation of a valve module of a vacuum handling device in a first embodiment
- Figure 3 is a schematic representation of an embodiment of a
- Vacuum handling device comprising a fastening module, a valve module according to FIG. 2 and a gripper module with a suction gripper unit;
- Figure 4 is a schematic representation of the
- Negative pressure handling device according to FIG. 3 with an additional negative pressure generating module
- FIG. 5 shows a schematic illustration of the vacuum handling device according to FIG. 4, the vacuum generating module comprising a valve unit;
- FIG. 6 shows a schematic representation of the vacuum handling device according to FIG. 5 with an additional ventilation module;
- Figure 7 is a schematic representation of a further embodiment of a
- Vacuum handling device comprising a fastening module, a valve module according to FIG. 2, a ventilation module and a gripper module with a magnetic gripper unit;
- FIG. 8 shows a schematic representation of a valve module in a second embodiment
- Figure 9 is a schematic representation of a further embodiment of a
- Vacuum handling device comprising a fastening module, a valve module according to FIG. 8, a vacuum generating module, and a gripper module with a suction gripper unit;
- FIG. 10 shows a schematic representation of a valve module of a vacuum handling device in a third embodiment
- Figure 11 is a schematic representation of an embodiment of a
- Vacuum handling device comprising a fastening module, a valve module according to FIG. 10 and a gripper module with a suction gripper unit;
- Figure 12 is a schematic representation of an embodiment of a
- Vacuum handling device comprising a fastening module, a valve module according to FIG. 10 and a gripper module with a magnetic gripper unit;
- Figure 13 is a schematic representation of an embodiment of a
- Negative pressure handling device comprising a fastening module, a valve module according to FIG. 10, a negative pressure generation module with a negative pressure generation unit, and a gripper module with a suction gripper unit;
- Figure 14 is a schematic representation of an embodiment of a
- Negative pressure handling device comprising a fastening module, a valve module according to FIG. 10, a negative pressure generation module with two negative pressure generation units, and a gripper module with a suction gripper unit.
- FIG. 1 shows a sketched illustration of an embodiment of a vacuum handling device, which is designated as a whole by the reference numeral 10.
- the vacuum handling device 10 is designed as a modular system and comprises several modules explained in detail below.
- the vacuum handling device 10 comprises a gripper module 12, a vacuum generation module 14, a valve module 16, and a fastening module 18.
- a gripper module 12 In the case of others, a vacuum generation module 14, a valve module 16, and a fastening module 18.
- the vacuum handling device 10 can further comprise a ventilation module 20 (see FIGS. 6 and 7).
- the vacuum handling device 10 can have all or only a subset of the modules mentioned above, but at least it has a gripper module 12 and a valve module 16.
- the modules 12, 14, 16, 18, 20 are designed as module disks which can be stacked on one another along a stacking axis 22 to form a module stack.
- the modules 12, 14, 16, 18, 20 are each designed as a structural unit with a separate module housing 24 with a bottom surface 26, a cover surface 28 and a lateral outer surface 30 delimiting the outside (highlighted in FIG. 1 as an example for the valve module 16).
- the bottom surfaces and the top surfaces of the modules are essentially flat.
- the jacket surfaces run around the The stack axis and are aligned essentially parallel to the stack axis 22.
- the individual modules 12, 14, 16, 18, 20 can be connected via connecting elements 32 to form a module stack (cf. FIGS. 2 to 14).
- the modules 12, 14, 16, 18, 20 form a structural unit in the stacked state.
- the modules can be fluidically connected to one another via module interfaces.
- the module interfaces are designed and arranged relative to one another in such a way that module interfaces of two modules assigned to one another establish a fluid connection when the modules are stacked on one another.
- the fastening module 18 is used to fasten the vacuum handling device 10 to a holder (not shown).
- the fastening module 18 has on an upper side facing away from the valve module 16 a fastening section 34 which is designed to have a
- the valve module 16 comprises a pneumatic supply connection 36 for supplying the negative pressure handling device 10 with a supply pressure (positive or negative pressure).
- the supply connection 36 is arranged on the lateral surface 30 of the valve module 16 and is designed in particular to be connected to an external lower or lower part
- Overpressure supply line e.g. compressed air line, (not shown) to be connected.
- the pneumatic supply connection 36 is coupled via a fluid line 38 to a module interface 40 which is arranged on the bottom surface 26 of the valve module 16 and is designed to be connected to a module interface of a further module.
- the valve module 16 comprises a valve device 42 with a first valve unit 44.
- the first valve unit 44 is designed as a 3/2-way valve and with the pneumatic supply connection 36 , the module interface 40 and a ventilation connection 46 arranged on the lateral surface 30 of the valve module 16 via corresponding fluid lines.
- a supply pressure (excess or negative pressure) applied to the pneumatic supply connection 36 is then output from the module interface 40.
- a second valve position of the first valve unit 44 there is a flow path between the ventilation connection 46 and the module interface 40 enabled.
- the module interface 40 is then ventilated.
- a flow path between the pneumatic supply connection 36 and the module interface 40 is blocked.
- the valve module 16 further comprises a control device 48 which is designed to control the valve device 42 as a function of a control signal. To provide control signals to the control device 48, the valve module 16 also has a
- Control signal connection 50 which is arranged on the lateral surface 30 of the valve module 16.
- the control signal connection 50 can in particular be an electrical or pneumatic connection.
- the control device 48 comprises a controller 52 and a pressure sensor 54 which is at least indirectly coupled to the controller 52.
- the pressure sensor 54 is coupled to a fluidic measurement module interface 56 and is designed to determine a pressure applied to the measurement module interface 56.
- the measuring module interface 56 is arranged on the bottom surface 26 of the valve module 16 and is designed to be connected to a measuring module interface of a further module.
- the valve module 16 further comprises a supply pressure feedthrough 58 which is connected to the pneumatic supply connection 36 and which is on the bottom surface 26 of the valve module 16 opens into a supply pressure module interface 60.
- valve module 16 further comprises a pneumatic connection 62 connected to the module interface 40 for tapping supply pressure from the side.
- the pneumatic connection 62 is arranged on the lateral surface 30 of the valve module 16.
- FIGS. 3 to 7 show different embodiments of a vacuum handling device 10 with a valve module 16 according to FIG. 2 explained above.
- one embodiment is one
- Vacuum handling device 10 comprising a fastening module 18, a valve module 16 according to FIG. 2, and a gripper module 12.
- the gripper module 12 comprises a gripper unit 64 which, in the example shown, is designed as a suction gripper unit 66.
- the suction gripper unit 66 comprises two suction points 68 for suctioning an object (not shown).
- the suction points 68 are flow-connected to one another via a suction channel 70 and each has a suction head 72.
- the suction channel 70 opens at a cover surface 74 of the gripper module 12 facing the valve module 16 into a module interface 76 which is fluidly and pressure-connected to the module interface 40 of the valve module 16.
- the pneumatic supply connection 36 of the valve module 16 is connected to a vacuum supply line (not shown).
- the suction channel 70 and thus the suction points 68 can then be subjected to negative pressure or ventilated.
- the gripper module 12 further comprises a measuring module interface 78, which is flow-connected to the suction channel 70 and is arranged on the cover surface 74 of the gripper module 12.
- the measuring module interface 78 of the gripper module 12 is connected to the measuring module interface 56 of the valve module 16. This makes it possible to monitor the pressure in the suction channel 70 by means of the pressure sensor 54 and to control the first valve unit 44 if necessary.
- FIG. 4 shows a further embodiment of a vacuum handling device 10, in which a vacuum generating module 14 is additionally arranged between the gripper module 12 and the valve module 16. Otherwise, the embodiment according to FIG. 4 corresponds to the embodiment according to FIG. 3, the pneumatic supply connection 36 of the valve module 16 in the embodiment according to FIG. 4 being connected to a compressed air supply (not shown).
- the negative pressure generation module 14 has a negative pressure generation unit 80, by way of example and preferred an ejector to generate negative pressure by means of compressed air.
- the negative pressure generation unit 80 comprises an overpressure inlet 82, an overpressure outlet 84 and a suction inlet 86.
- the negative pressure generating module 14 has an overpressure module interface 88, which is fluidly and pressure-connected to the positive pressure input 82 of the negative pressure generating unit 80.
- the overpressure module interface 88 is arranged on a cover surface 90 of the underpressure generating module 14 facing the valve module 16 and is connected to the module interface 40 of the valve module 16.
- the vacuum generating device 80 can be acted upon or ventilated with compressed air depending on the valve position of the first valve unit 44 of the valve module 16.
- the vacuum generating device 80 can therefore be activated and deactivated via the first valve unit 44 of the valve module 16.
- the negative pressure generation module 14 also has an overpressure outlet 92, which is arranged on a lateral surface 94 of the negative pressure generation module 14 and is connected to the overpressure outlet 84 of the negative pressure generation unit.
- the suction inlet 86 of the negative pressure generating unit 80 is connected via a fluid line to a negative pressure valve arranged on a bottom surface 96 of the negative pressure generating module 14.
- Module interface 98 connected.
- the negative pressure module interface 98 is connected to the module interface 76 of the gripper module 12.
- the suction channel 70 of the gripper module 12 can be subjected to negative pressure.
- the negative pressure generation module 14 also has an overpressure leadthrough 100 for carrying out positive pressure from the cover surface 90 of the negative pressure generation module 14 to the bottom surface 96.
- the overpressure leadthrough 100 opens onto the cover surface 90 of the
- Underpressure generation module 14 into the above-mentioned overpressure module interface 88.
- the overpressure duct 100 opens into a further overpressure module interface 102 for connection to a module interface of a further module.
- the negative pressure generation module 14 has a measuring module interface 104, which is arranged on the cover surface 90 of the negative pressure generation module 14 and is connected to the suction inlet 86 of the negative pressure generation unit via a fluid line.
- the measuring module interface 104 of the negative pressure generating module 14 is connected to the measuring module interface 56 of the valve module 16, so that a pressure prevailing at the suction inlet 86 can be determined by the pressure sensor 54 of the valve module 16.
- the vacuum generation module 14 optionally also has one with the suction inlet 86 of the
- Vacuum generation unit 80 connected lateral vacuum outlet 106 for tapping the vacuum.
- the vacuum generation module 14 also has a supply pressure feedthrough 108 which opens into a supply pressure module interface 110, 112 on the cover surface 90 and on the bottom surface 96 of the vacuum generation module 14.
- a supply pressure module interface 110 on the cover surface 90 of the negative pressure generating module 14 is connected to the supply pressure module interface 60 on the bottom surface 26 of the valve module 16.
- FIG. 5 a further embodiment of a vacuum handling device 10 is shown, which differs from the embodiment according to FIG. 4 in that the vacuum generating module 14 additionally comprises a control valve unit 114.
- the control valve unit 114 is designed as a 3/2-way valve and is connected to the supply pressure feedthrough 108, the overpressure module interface 88 and the overpressure input 82 of the negative pressure generating unit 80.
- a first valve position a flow path between the supply pressure feedthrough 108 and the overpressure inlet 82 of the negative pressure generating unit 80 is released.
- In a second valve position there is a flow path between the Supply pressure feedthrough 108 and the overpressure inlet 82 blocked.
- the control valve unit 114 is designed in particular in such a way that it can be controlled via a pressure change at the overpressure module interface 88.
- the control valve unit 114 can then be controlled indirectly via the valve device 44 of the valve module 16.
- the control valve unit 114 is also designed such that it is in its first valve position when the first valve unit 44 of the valve module 16 is in its first valve position - that is, when the overpressure module interface 88 is acted upon with compressed air.
- the negative pressure generating unit 80 is then supplied with compressed air both via the positive pressure module interface 88 and via the supply pressure feedthrough 108.
- FIG. 6 a further embodiment of a vacuum handling device 10 is shown, which corresponds to the embodiment according to FIG. 5, but additionally comprises a ventilation module 20.
- the ventilation module 20 is arranged between the vacuum generation module 14 and the gripper module 12.
- the ventilation module 20 comprises a negative pressure feedthrough 116 for carrying out negative pressure from a cover surface 118 of the ventilation module 20 facing the negative pressure generation module 14 to one of the bottom surface 120 of the ventilation module 20 facing the gripper module 12
- Negative pressure leadthrough 116 opens into a negative pressure module interface 122 on the cover surface 118 of the ventilation module 20, which is connected to the negative pressure module interface 98 of the negative pressure generating module 14.
- the vacuum feedthrough 116 opens into a further vacuum module interface 124, which is connected to the module interface 76 of the gripper module 12.
- the ventilation module 20 further comprises an overpressure module interface 126, which is arranged on the cover surface 114 and is connected to the overpressure module interface 102 of the overpressure feed-through 100 of the negative pressure generating module 14.
- the ventilation module 20 comprises a pneumatically controllable ventilation valve 128, which is designed to ventilate the vacuum feedthrough 116 of the ventilation module 20 in a valve position.
- the ventilation valve 128 is designed as a 3/2-way valve and connected to the overpressure module interface 126 of the ventilation module 20, a ventilation connection 132 arranged on a lateral surface 130 of the ventilation module 20, and the negative pressure feed-through 116. In a first valve position, a flow path between the ventilation connection 132 and the vacuum feedthrough 116 is blocked. In a second valve position, a flow path between the ventilation connection 132 and the vacuum feed-through 116 is then released.
- the vent valve 128 is particularly designed in such a way that it can be controlled via a pressure change at the overpressure module interface 126 of the ventilation module 20. In this respect, the ventilation module 128 can be controlled indirectly by controlling the first valve unit 44 of the valve module 16.
- the ventilation module 20 further comprises a
- Supply pressure feedthrough 134 which opens into a supply pressure module interface 136, 138 on the cover surface 118 and on the bottom surface 120 of the ventilation module 20.
- the supply pressure module interface 136 on the cover surface 118 of the ventilation module 20 is connected to the supply pressure module interface 112 on the bottom surface 96 of the negative pressure generating module 14.
- FIG. 7 shows a further embodiment of a vacuum handling device 10, comprising a fastening module 18, a valve module 16 according to FIG. 2, a ventilation module 20 in a second embodiment, and a gripper module 12.
- the ventilation valve 128 is connected to the vacuum feedthrough 116, the supply pressure feedthrough 134, and a module interface 140, which does not exist in the embodiment according to FIG. 6, on the bottom surface 120 of the ventilation module 20.
- a first valve position of the ventilation valve 128 there is a flow path between the supply pressure feedthrough 134 and that of the module interface 140 are blocked.
- a second valve position a flow path between the supply pressure feedthrough 134 and that of the module interface 140 is released.
- the ventilation valve 128 is activated via the vacuum feed-through 116.
- the gripper module 12 comprises two gripper units 64, 64 'which are designed as magnetic gripper units 142, 142'.
- Each magnetic gripper unit 142, 142 ' comprises a permanent magnet 144 and a pole piece 146.
- the permanent magnet 144 is arranged within the pole piece 146 that it can be moved between an activated position in which a Magnetic field for holding an object is effective, and a deactivated position in which a held object can be placed can be moved.
- Each magnetic gripper unit 142, 142 ' is fluidly and pressure-connected via two suction channels 70, 70' with corresponding module interfaces 76, 76 'on the cover surface 74 of the gripper module 12 under negative or positive pressure.
- a first module interface 76 of the gripper module 12 is connected to the negative pressure module interface 124 of the negative pressure feed-through 116 of the ventilation module 20.
- the first suction channel 70 connected to the first module interface 76 is shown in FIG Depending on a valve position of the first valve unit 44 of the valve module, pressurized.
- the second module interface 76 ′ of the gripper module 12 is connected to the module interface 140 on the bottom surface 120 of the ventilation module 20.
- the second suction channel 70 ′ can be acted upon with supply pressure as a function of the switching state of the ventilation valve 128.
- the ventilation valve 128 is designed in particular such that the second suction channel 70 'is then acted upon with supply pressure, i.e.
- the ventilation valve 128 is then in its second valve position when the first suction channel 70 is ventilated, i.e. the first valve unit 44 is in its second valve position. This enables the permanent magnet 144 to be moved back and forth between its activated and deactivated positions.
- FIG. 8 shows a second embodiment of a valve module 16, which differs from the embodiment according to FIG. 3 in that the valve device 42 includes, in addition to the first valve unit 44, a control valve unit 148 connected downstream of the first valve unit 44.
- the control valve unit 148 is designed as a 3/2-way valve and is connected to the pneumatic supply connection 36, a valve output of the first valve unit 44 and the module interface 40.
- the first valve unit 44 can serve, for example, as a pilot valve for the control valve unit 148.
- FIG. 9 shows a further embodiment of the vacuum generating device 10, comprising a fastening module 18, a valve module 16 according to FIG. 8, a vacuum generating module 14, and a gripper module 12.
- the embodiment according to FIG. 9 differs from the embodiment according to FIG Valve device 42 with first valve unit 44 and control valve unit 148, however, is otherwise constructed in the same way (see above explanations regarding FIG. 8).
- FIG. 10 shows a third embodiment of a valve module 16, which differs from the embodiment according to FIG. 2 in that the valve module 16 comprises two separate module interfaces 40, 40 ′ which are connected to the pneumatic supply connection 36 via a common distributor line 38.
- the valve device 42 of the valve module 16 further comprises two valve units 44, 44 '.
- a first valve unit 44 is designed to control an air flow between the at least one pneumatic supply connection 36 and a first module interface 40.
- a second valve unit 44 ' is designed to control an air flow between the pneumatic supply connection 36 and the second module interface 40'.
- the two valve units 44, 44 ′ can each comprise two valves (main valve and control valve).
- the valve module 16 preferably also comprises two control signal connections 50, 50 ′ for supplying the control device 48 with control signals Control of the first valve unit 44 or the second valve unit 44 '.
- the control device 48 preferably also comprises two measuring module interfaces 56, 56 'and two pressure sensors 54, 54'.
- the valve module 16 comprises two pressure circuits that can be actuated independently of one another.
- FIGS. 11 to 14 show different embodiments of a vacuum handling device 10 comprising a valve module 16 according to FIG. 10 explained above.
- one embodiment is one
- Vacuum handling device 10 comprising a fastening module 18, a valve module 16 according to FIG. 10 and a gripper module 12.
- the gripper module 12 has two suction gripper units 66, 66 ′, each with at least one suction point 68.
- Each suction gripper unit 66, 66 ' is connected to a module interface 76, 76' on the cover surface 74 of the gripper module 12 via a suction channel 70, 70 ', the module interfaces 76, 76' of the gripper module 12 each being connected to one of the two module interfaces 40, 40 ' of the valve module 16 are connected.
- the suction gripper units 66, 66 ′ can be acted upon with negative pressure independently of one another via the two pressure circuits of the valve module 16.
- the gripper module 12 further comprises two measuring module interfaces 78, 78 ', which are arranged on the cover surface 74 of the gripper module 12 and each with one of the two suction channels 70, 70 'are connected.
- the two measuring module interfaces 78, 78 ′ are connected to the two measuring module interfaces 56, 56 ′ of the valve module 16.
- FIG. 12 A further embodiment of a vacuum handling device 10 is shown in FIG. 12, comprising a fastening module 18, a valve module 16 according to FIG. 10 and a gripper module 12 with two magnetic gripper units 142,
- the gripper module 12 is designed analogously to the gripper module 12 of the embodiment according to FIG. As can be seen from FIG. 12, the module interfaces 76, 76 ′ of the gripper module 12 are connected to the two module interfaces 40, 40 ′ of the valve module 16. In this respect, the two suction channels 70, 70 'can be acted upon with supply pressure independently of one another via the two pressure circuits of the valve module 16, so that the respective permanent magnet 144 can be shifted between its activated and deactivated position.
- FIG. 13 shows a further embodiment of a vacuum handling device 10, comprising a fastening module 18, a valve module 16 according to FIG. 10, a vacuum generating module 14, and a gripper module 12.
- the negative pressure generation module 14 comprises a negative pressure generation unit 80, which is designed in a manner analogous to the embodiment explained with reference to FIG. 4 and via the first pressure circuit of the Valve module 16 is operable.
- the negative pressure module interface 98 on the bottom surface 96 of the negative pressure generating module 14 is provided with an additional positive pressure module interface 150 on the top surface 90 of the
- Vacuum generation module 14 connected.
- This overpressure module interface 150 is connected to the second module interface 40 'of the valve module 12, so that the underpressure module interface 98 can be subjected to overpressure via the second pressure circuit of the valve module 16 in order to blow off an object held at a suction point 68 of the gripper module 12.
- Figure 14 shows another embodiment of a vacuum handling device 10 comprising a
- Each suction gripper unit 66, 66 ′ is assigned a vacuum generating unit 80, 80 ′, which can each be actuated via one of the two pressure circuits of the valve module 16.
- the two suction gripper units 66, 66 ' can be actuated separately from one another.
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019130054.1A DE102019130054B4 (de) | 2019-11-07 | 2019-11-07 | Unterdruckhandhabungsvorrichtung |
PCT/EP2020/078498 WO2021089272A1 (de) | 2019-11-07 | 2020-10-09 | Unterdruckhandhabungsvorrichtung |
Publications (1)
Publication Number | Publication Date |
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EP4054810A1 true EP4054810A1 (de) | 2022-09-14 |
Family
ID=72964636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20793585.9A Pending EP4054810A1 (de) | 2019-11-07 | 2020-10-09 | Unterdruckhandhabungsvorrichtung |
Country Status (4)
Country | Link |
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EP (1) | EP4054810A1 (de) |
CN (1) | CN114641379A (de) |
DE (1) | DE102019130054B4 (de) |
WO (1) | WO2021089272A1 (de) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3716307A (en) * | 1971-10-06 | 1973-02-13 | Kms Ind Inc | Venturi head for vacuum systems |
DE19533948A1 (de) * | 1994-09-14 | 1996-05-02 | Hans Gamerdinger | Energieverteiler für Roboter |
US20080202602A1 (en) * | 2007-02-22 | 2008-08-28 | Piab Usa, Inc. | Valve Controlled Vacuum Assembly |
DE102011118168B4 (de) | 2011-11-10 | 2015-12-31 | Festo Ag & Co. Kg | Verfahren zum Betreiben einer Vakuumgreifeinrichtung, Vakuumsteuereinrichtung und Manipulator |
DE102013222376B3 (de) | 2013-11-04 | 2015-03-26 | J. Schmalz Gmbh | Ventil für Unterdruckhandhabungs- oderSpanneinrichtung, sowie Unterdruckhandhabungseinrichtung |
WO2015123128A1 (en) * | 2014-02-11 | 2015-08-20 | Empire Robotics, Inc. | Jamming grippers and methods of use |
DE102014215102A1 (de) * | 2014-07-31 | 2016-02-04 | J. Schmalz Gmbh | Flächensauggreifer |
DE102016113241A1 (de) * | 2016-07-19 | 2018-01-25 | J. Schmalz Gmbh | Flächensauggreifer |
US10780575B2 (en) * | 2017-06-22 | 2020-09-22 | Phd, Inc. | Robot end effector cuff |
DE202017105808U1 (de) * | 2017-09-25 | 2019-01-09 | J. Schmalz Gmbh | Schnellwechseleinrichtung, Greifeinrichtung und Handhabungsvorrichtung |
CA3078773A1 (en) | 2017-10-11 | 2019-04-18 | Softbox Patents Aps | Interchangeable robot gripper base |
-
2019
- 2019-11-07 DE DE102019130054.1A patent/DE102019130054B4/de active Active
-
2020
- 2020-10-09 EP EP20793585.9A patent/EP4054810A1/de active Pending
- 2020-10-09 CN CN202080077409.7A patent/CN114641379A/zh active Pending
- 2020-10-09 WO PCT/EP2020/078498 patent/WO2021089272A1/de unknown
Also Published As
Publication number | Publication date |
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DE102019130054A1 (de) | 2021-05-12 |
CN114641379A (zh) | 2022-06-17 |
DE102019130054B4 (de) | 2021-07-15 |
WO2021089272A1 (de) | 2021-05-14 |
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