55 results about "Kinematic coupling" patented technology

The invention relates to the technical field of automatic guided vehicle control, in particular to a multi-differential wheel set AGV trajectory tracking method and system, and the method comprises the steps: building a special kinematics forward / inverse solution model, and determining the speed and angle mapping relation between a driving wheel and the center of a vehicle body; constructing a double-layer framework of upper-layer pure tracking trajectory tracking and lower-layer wheel set cooperative control, and introducing a steering cooperative optimization strategy; an intelligent self-correction mechanism is set, and a strong correction mode or a smooth correction mode is selected according to the deviation distance; and deep fusion of a pure tracking algorithm and a special chassis is realized, and a complete closed-loop control system is formed. The system comprises a chassis module, a kinematics modeling module, a double-layer control module, a self-correction module and a closed-loop feedback module. According to the method, the problems of poor adaptability, motion coupling, unbalanced heavy AGV tracking precision and stability and the like of a traditional algorithm are solved, high-precision trajectory tracking is realized, tire wear and energy loss are reduced, the robustness of the AGV in a complex environment is enhanced, and the method is suitable for heavy and heavy-load AGVs.

The invention relates to the technical field of robot control, and discloses a robot multi-mechanical-arm cooperative anti-collision control method and system.The method comprises the steps that a three-dimensional Cartesian global reference coordinate system with a kinematics pivot point as an original point is established, inner and outer side operation domains are divided, and outer side virtual nodes are defined; a virtual safety monitoring section is constructed in an outer side driving domain, a dynamic rejection light spot is generated, and collision early warning is generated through position and trend composite judgment; mapping the virtual repulsive force into equivalent joint damping torque, and superposing the equivalent joint damping torque to a current control ring of the servo driver; by means of kinematics reverse deduction and virtual force field construction, mathematical reconstruction of the outside non-sensing blind area state is achieved on the premise that an external sensor is not needed, and external connecting rod hidden physical collision caused by'cohesion and divergence 'motion coupling of multiple mechanical arms is effectively prevented through force sense feedback of a current control ring level.

The invention provides a multi-modal motion asymmetric soft actuator and application thereof, and belongs to the technical field of soft robots. The present invention comprises: at least one bending chamber for converting air pressure energy into directional bending motion; the at least one torsion chamber and the bending chamber are physically separated to form an independent bending chamber and an independent torsion chamber, and the bending chamber and the torsion chamber are respectively connected with an independent gas circuit; an asymmetric structure is arranged in the torsion chamber and is used for directly converting air pressure energy into rotating torque around the central axis of the module; by independently controlling air pressure input of the torsion chamber and the bending chamber which are asymmetrically arranged, torsion and bending motion can be independently achieved in a single module. According to the invention, an asymmetric structure is adopted as a whole, independent driving chambers with special functions and physical isolation are integrated in a single module, a mode of indirectly synthesizing torsion through motion coupling of a plurality of symmetrical chambers is abandoned, torsion motion in a target direction is directly output, and a driving source and control logic are simplified.

The invention relates to the technical field of fully-mechanized coal mining automation control, and discloses a hydraulic support lifting control method and device based on flow proportion and attitude feedback, and the method comprises the steps that a controller establishes a physical parameter model, and the controller calculates the target flow of a stand column oil cylinder and the target flow of a bottom lifting oil cylinder according to a kinematics coupling model; the controller executes a feedforward and fuzzy PID composite control strategy, the controller generates a feedforward instruction and combines the feedforward instruction with the feedback control quantity to synthesize a final valve control instruction, and the controller drives the electro-hydraulic control valve set to act; the controller monitors the synchronous error of the adjacent hydraulic supports and corrects a final valve control instruction, and the controller monitors the speed matching state and executes attitude priority deviation correction; the controller judges whether lifting is completed or not according to the displacement of the stand column oil cylinder, the displacement of the bottom lifting oil cylinder and the pitch angle of the hydraulic support, and the controller executes valve port smooth closing logic. According to the invention, the track tracking precision and the dynamic response speed of the lifting frame are improved, the action synchronism and the attitude stability are ensured, and hydraulic impact is eliminated.

Disclosed herein are tracking element fixation elements for affixing computer-assisted surgical system (CASS) tracking elements to a patient. Fixation systems provide kinematic coupling or clamping functionality that allows tracking elements (attached to a tracker arm) to be repeatedly and accurately detached and re-attached to facilitate removal when necessary, such as for point probe data collection, during impaction, bone movement, and / or the like. Fixation systems may include a baseplate and a tracker arm configured to be kinematically coupled to the baseplate via a magnet associated with independent ball bearings or contacts extending from a bottom surface of the magnet. The ball bearings or contacts are configured to be received within corresponding grooves of the baseplate. The baseplate may include one or more protrusions extending from a bottom of the baseplate that are configured to be impacted into the cortical bone of the patient.

A film forming apparatus includes a movable stage; a substrate holder supported by the movable stage and configured to hold a substrate; a coupling configured to couple the movable stage and the substrate holder; and a curing unit configured to cure a curable composition on the substrate, wherein the coupling includes: a kinematic coupling; and an attraction force generator configured to generate, between the movable stage and the substrate holder, an attraction force for fixing the substrate holder to the movable stage.

In an actuator device for a process chamber (12), in which process material, for example wafers (15), can be treated or processed under process conditions, wherein movable functional components are associated with the process chamber (12), and wherein the actuator device (11) has at least one actuator (18), which is provided with an output element (19) which can be moved by means of the actuator (18) for handling an associated functional component, the actuator (18) has an output chamber (21) which is associated with the process chamber (12), has a longitudinal axis (22) and is within an output housing (23), and in which the output element (19) is movably guidingly accommodated, via which the output chamber (21) is encapsulated in a process-medium-tight manner in relation to the environment in the use state, wherein the actuator (18) also has a drive part (29) arranged outside the output chamber (21), which interacts magnetically with the output element (19) via a magnetic coupling device (30) in such a way that the drive part (29) and the output element (19) are contactlessly motion-coupled by magnetic forces to form a movement unit.

The application relates to the technical field of robot control, and discloses a robot multi-mechanical arm cooperative anti-collision control method and system, which comprises the following steps: a three-dimensional global reference coordinate system with a kinematic pivot point as the origin is established, an inside and outside work area is divided, and an outside virtual node is defined; a virtual safety monitoring section is constructed in the outside driving area, a dynamic repulsion spot is generated, collision early warning is generated through position and trend compound judgment; the virtual repulsion force is mapped into equivalent joint damping torque, and is superimposed into a servo driver current control loop; the application realizes mathematical reconstruction of the outside non-perception blind area state without an external sensor through kinematic reverse deduction and virtual force field construction, and effectively prevents implicit physical collision of external connecting rods caused by the 'cohesion and external dispersion' motion coupling of the multi-mechanical arms through force feedback of the current control loop level.

A sterile barrier assembly for releasably attaching between a robotic arm and an end effector. The assembly includes a drape configured to cover the robotic arm and an interface coupled to the drape. The interface has a body with opposing first and second sides, a coupling extending through the body to provide first and second coupling interfaces, and multiple kinematic couplers extending through the body such that portions of each coupler protrude from both sides. The interface is bi-directionally mountable to the first and second mounting portions in two installation configurations. In each configuration, the coupling interfaces and kinematic coupler portions on one side engage one mounting portion, while those on the opposite side engage the other, enabling reversible connection.

The invention provides a load response analysis method under a fault state of an airplane high lift device, and relates to pneumatic and motion coupling analysis and airplane high lift device fault analog simulation and test verification, and the method comprises the following steps: planning a fault condition analysis matrix; simplifying and pre-processing the wing model; carrying out simulation analysis under each incoming flow speed in a normal state based on the existing simplified model; designing and finishing a wind tunnel verification test in a normal state and a fault working condition; confirming and verifying a normal state analysis method and a calculation model based on test data; constructing parameterized simulation models under different fault working conditions based on the verified model; load response analysis under the fault working condition is completed; verifying the load response analysis result based on the wind tunnel verification test data under the fault condition; and obtaining a final load displacement response process result of the high lift device in the fault state.

A cart-borne ultrasonic imaging system hasa cart housing;a control panel or a support for a portable ultrasound unit; andan articulating arm assembly to which the control panel, or the support is connected. The articulating arm assembly has arms pivotally connected with a first joint rotatably mounted on the cart and a second joint rotatably mounted on the control panel, or the support. At least one of the arms includes a 4-bar linkage,A locking mechanism restricts motion of the articulating arm assembly and comprises electromagnetic elements controllable to exert magnetic force on movable actuating elements. The moveable actuating elements havea friction mass with corresponding braking element to restrict rotation of the first joint and / or of the second joint and / ora locking member kinematically coupled with main damping member to restrict its movement and that of the 4-bar linkage.

The invention relates to a star wheel for guiding containers (4) in a container handling system, comprising a star wheel with a plurality of pockets (11) on the outer circumference of the star wheel for receiving one container (4) in each pocket (11) and radially adjustable adjusting elements (5) for adapting the pockets (11) to different container diameters, wherein each pocket (11) is assigned at least one radially adjustable adjusting element (5) which forms a radially adjustable support shoulder for the containers (4) in the pocket (11), wherein the radially adjustable adjusting elements (5) are kinematically coupled to one another by means of a centering disk (8) and the adjustment of the adjusting elements (5) is synchronous in the radial direction.

The invention discloses an electromechanical coupling closed-loop simulation system for a dual-rotor flux-adjusting motor and a modeling method of the electromechanical coupling closed-loop simulation system. The electromechanical coupling closed-loop simulation system comprises a main winding electrical sub-model, a secondary winding electrical sub-model, an inner rotor mechanical sub-model and an outer rotor mechanical sub-model, an electromagnetic torque part generated by the main winding electrical sub-model is input into the inner rotor mechanical sub-model, and the remaining part of the electromagnetic torque generated by the main winding electrical sub-model and the electromagnetic torque generated by the secondary winding electrical sub-model are input into the outer rotor mechanical sub-model. And the outer rotor mechanical sub-model and the inner rotor mechanical sub-model respectively send feedback signals back to the main winding electrical sub-model and the secondary winding electrical sub-model. According to the electromechanical coupling closed-loop simulation system and the modeling method thereof, the structure is clear, calculation is efficient, the core internal and external torque distribution and motion coupling mechanism of the double-rotor flux-adjustable motor is grasped, the simulation accuracy is guaranteed, and a reliable theoretical basis is provided for motor body design optimization and control system performance prediction.

Fully automatic electronic armored door lock, comprising a lock housing (1), characterized in that the lock housing (1) includes a bolt (2), an electronic control module (3), an inside handle control module (4), a mechanical key control module (5) and a motion coupling structure (7), wherein the motion coupling structure (7) is drive-connected to the bolt (2), wherein the electronic control module (3) electrically drives the motion coupling structure (7) and the mechanical key control module (5) and the inside handle control module (4) mechanically drive the motion coupling structure (7), and wherein the motion coupling structure (7) is connected to a spring return structure;wherein the motion coupling structure (7) comprises a motion coupling sliding plate (71) on the side surface of which a straight toothing (712) is provided, wherein a motion coupling rod (72) is rotatably mounted on the motion coupling sliding plate (71) on which a camshaft (721) is fixedly mounted, wherein the motion coupling sliding plate (71) is connected to the latch (2) and the lower end of the motion coupling sliding plate (71) is integrally connected to a projecting edge (711).

The application provides a nanometer vision micro-control robot system and a control method thereof, and relates to the technical field of micro-nano operation robots.The application adopts a composite configuration of a large-stroke motion module, a multi-degree-of-freedom manipulator and a micro-positioning module, specifically, the large-stroke motion module provides macro movement ability for finding a target, the multi-degree-of-freedom manipulator provides flexible posture adjustment ability for approaching the target, and the micro-positioning module provides nanometer-level accurate positioning ability for final operation, and through the control system, the Cartesian space error of the end is mapped and distributed to each joint through inverse kinematics calculation, so that parasitic displacement caused by joint coupling of the multi-degree-of-freedom manipulator is effectively decomposed and compensated; meanwhile, through real-time tuning of PID parameters, the remaining unmodeled dynamics and disturbances can be effectively coped with, so that the whole system can still show high control precision and stability when facing multiple complex nonlinear factors such as vacuum dry friction, hysteresis and motion coupling.

The invention discloses a multi-dimensional vibration platform with double sandwich type piezoelectric actuators arranged in the same direction and an excitation method of the multi-dimensional vibration platform, and relates to the field of high-frequency vibration engineering and micro-nano machining. Aiming at the problem that a traditional piezoelectric vibration platform is difficult to realize higher-dimension multi-degree-of-freedom operation capability, the piezoelectric vibration platform comprises an output platform, two piezoelectric actuators, two end covers and two bolts. The piezoelectric actuator is provided with a longitudinal vibration ceramic set and two bending vibration ceramic sets arranged in the orthogonal direction, and through excitation of voltage signals with the same phase or the phase difference of 180 degrees, rotation around the X axis, the Y axis and the Z axis and translation along the X axis and the Y axis are achieved. Due to structural symmetry and driver arrangement constraint, Z-direction translation is strongly coupled with an existing mode, so that high-practicability five-degree-of-freedom output is focused. The same-direction arrangement type design is adopted, the characteristic of low motion coupling is achieved, and displacement deformation of the piezoelectric actuator can be converted into different actions needed by multi-dimensional vibration of the tail end platform. The method is suitable for the fields of laser processing, vibration-assisted processing, micro-nano operation, active vibration suppression and the like.

The present invention provides a rotating cage (3) configured to rotate by a power source (M); a balance spring oscillator (7) supported by a rotating cage (3); an escapement (9) carried by the rotating cage (3) and configured to cooperate with the oscillator (7) to maintain its oscillation, the escape wheel (11) being integrally mounted in rotation on an escapement pinion (15) pivotally mounted relative to the rotating cage (3) and meshing with teeth (17) carried by the frame element; According to the invention, the mechanism further comprises a display element (23) kinematically coupled to the escape wheel (11) and indicating the minutes of the time division.

The invention relates to a circuit breaker (1) for high-voltage applications, comprising: at least one switching-on and switching-off unit (10) having a first contact (12) and a second contact (14) for forming an electrically conductive connection in a connection region (16), the first contact (12) having an outlet (20) arranged remote from the connection region (16) for an insulating gas passing through the connection region (16) and through the first contact (12), and the second contact (14) having an outlet (20) for an insulating gas passing through the connection region (16) and through the second contact (14); the first contact (12) can be moved by a displacement distance (24) along an axially extending switching axis (22) of the circuit breaker (1) between a closed position in which the electrically conductive connection is formed and an open position in which the electrically conductive connection is broken. A gas compression cylinder (30) coupled in motion with the first contact (12) and defining a cylinder volume (34) for the insulating gas, where the cylinder volume (34) can be varied by means of a piston (48) sliding in the gas compression cylinder (30) when the first contact (12) is moved, where the gas compression cylinder (30) comprises a passage (36) extending between the cylinder volume (34) and the connection region (16).

Devices, methods, and systems are provided for autonomous tool exchange systems for automated and semi-automated intraocular surgical procedures. According to various embodiments of the present invention, for example, there is a tool exchange system for an autonomous intraocular surgical robot. The system includes a removable, rotatable tool carousel configured to be releasably engaged with a rotating base, the tool carousel having a plurality of tool assembly docks each disposed about the tool carousel, each tool assembly dock adapted for kinematic coupling to a kinematic coupling of a surgical tool holder assembly, and each surgical tool holder assembly including an end effector kinematic coupling adapted and configured to couple with a corresponding kinematic coupling of a robot end effector while the surgical tool assembly is engaged with the tool assembly dock. Other embodiments are described herein.

The utility model relates to precise positioning platform technical field discloses a big stroke two -dimensional piezoelectric nanometer positioning platform, it includes upper cover, bottom cover and shell. Upper cover and bottom cover between be equipped with piezoelectric drive unit. Piezoelectric drive unit includes 1 X -axis piezoelectric drive mechanism, 1 Z -axis piezoelectric drive mechanism and adapter plate. The fixed end of Z -axis piezoelectric drive mechanism is connected with bottom cover. The mobile end of Z -axis piezoelectric drive mechanism is connected with one end of adapter plate. The other end of adapter plate is connected with the fixed end of X -axis piezoelectric drive mechanism. The mobile end of X -axis piezoelectric drive mechanism is connected with upper cover. The utility model discloses through with X -axis piezoelectric drive mechanism, adapter plate, Z -axis piezoelectric drive mechanism series connection, realized X -axis, Z -axis two -dimensional super -precision movement, with the advantage that motion coupling is small, and repeat positioning precision is high, and compact structure. Piezoelectric drive unit adopts amplification body structure, satisfies big stroke demand. Multiple piezoelectric drive units parallel has the characteristics of big load.

The application discloses a parallel decoupling motion platform, which comprises a bottom plate, a rotating output table, two rotating input groups and driving members, the rotating output table is located above the bottom plate and is used for carrying objects, rotating shafts of the two rotating input groups intersect with each other, each rotating input group comprises two rotating input tables, the two rotating input tables of each rotating input group are respectively located at two ends of the rotating shaft of the rotating input group, the rotating input tables are connected with the upper surface of the bottom plate, the driving members are two, and each driving member is connected with one rotating input group, wherein, four motion transmission assemblies are arranged on the rotating output table, each motion transmission assembly is connected with one rotating input table, the motion transmission assembly has high rigidity in the direction of the rotating shaft of the rotating input group connected with the motion transmission assembly, and the motion transmission assembly has weak rigidity in the direction perpendicular to the rotating output table. The parallel decoupling motion platform can solve the motion coupling problem in the parallel implementation scheme, is convenient to control and is favorable for practical application.

The invention relates to an assembly (1) for guiding a movable furniture part (2), preferably a sliding door or a folding sliding door, on a fixed furniture part (3), comprising a first guide system (4) to be fastened to a fixed furniture part (3) and at least one second guide system (6) to be fastened to the fixed furniture part (3) at a vertical distance (5) from the first guide system (4), the two guide systems (4, 6) each having at least one guide rail (7, 8) and a guide body (9, 10) displaceably mounted on the guide rail (7, 8); a carrier (11) to which the movable furniture part (2) is to be fixed and which can or has been connected in a kinematically coupled manner to the two guide bodies (9, 10) of the guide system (4, 6); and a compensation device (15) for compensating a tilting moment (12) of the carrier (11) or of the movable furniture part (2) arranged thereon about a tilting axis, the compensation device (15) comprising at least one cable device (16); wherein at least one pretensioning device (17) is provided, by means of which the carrier (11) can be acted upon at least in the closed state of the movable furniture part (2), preferably in the direction of the longitudinal extension of the guide rails (7, 8) of at least one of the guide systems (4, 6).

Attaching an optical connector to an optoelectronic device via a foundation thereon is achieved by kinematic coupling, quasi-kinematic coupling, or elastic-averaging coupling. The foundation is attached to the optoelectronic device with reference to optical ports in the optoelectronic device. For kinematic coupling, coupling balls and grooves are provided on facing surfaces of the optical connector and the foundation. An optical bench of the optical connector is positioned in a central space on the foundation. A preload is applied along a line through the thermal center of the coupled foundation and optical connector without introducing lateral bias, ensuring the contact between the foundation and optical connector.

A first edge ring for a substrate support is provided. The first edge ring includes an annular-shaped body and one or more lift pin receiving elements. The annular-shaped body is sized and shaped to surround an upper portion of the substrate support. The annular-shaped body defines an upper surface, a lower surface, a radially inner surface, and a radially outer surface. The one or more lift pin receiving elements are disposed along the lower surface of the annular-shaped body and sized and shaped to receive and provide kinematic coupling with top ends respectively of three or more lift pins.

Coupling device (10; 10a) for a hydraulic or pneumatic assembly (11), wherein the coupling device (10) has a housing (12), wherein a first and a second coupling socket (21; 22) are movably received in the housing (12), each of which is movable between a working position, an engagement position and an disengagement position, wherein in the working position a coupling plug is retained in the coupling socket (21; 22), wherein in the engagement position the coupling plug can be engaged into the coupling socket (21; 22), and wherein in the disengagement position the coupling plug can be disengaged from the coupling socket (21; 22), wherein a first rotatable cam (30) is assigned to the first coupling bushing (21), wherein a second rotatable cam (40) is assigned to the second coupling bushing (22), wherein the first and the second cam (30; 40) are each coupled to the assigned coupling bushing (21; 22) in such a way that the assigned coupling bushing (21; 22) can be moved from the working position to the engagement position, whereby the respective coupling plug can be engaged in the coupling bushing (21; 22), wherein the first cam (30) is connected to a first lever arm (31) in a rotationally fixed manner, wherein the second cam (40) is connected to a second lever arm (41) in a rotationally fixed manner, wherein the first and the second lever arm are formed separately (31; 41) from each other, characterized in that a separate third lever arm (50) is rotatably mounted on the housing (12), which is movable between a first actuating position (51), a neutral position (53) and a second actuating position (52), wherein the third lever arm (50) is coupled to the first and the second lever arms (31; 41) in such a way that when the third lever arm (50) moves from the neutral position (53) to the first actuating position (51) only the first clutch bushing (21) can be moved into the engaged position, and when the third lever arm (50) moves from the neutral position (53) to the second actuating position (52) only the second clutch bushing (22) can be moved into the engaged position.

Disclosed is a heated printer bed mounted to a kinematic coupling system that permits thermal expansion of both the bed and a support truss. One kinematic couple couples the bed to the support truss and a second kinematic couple couples the support truss to a frame of the printer. Both kinematic couples ensure that a common geometric center along each kinematic couple is maintained despite thermal expansion of the printer bed and the support truss occurring at different rates. The kinematic coupling system mitigates deformations to 3D-printed items from the effects of thermal expansion.

An appliance is disclosed. The appliance includes a cavity, a door associated with a front opening, a rack including at least one carrier support for supporting at least one carrier. The rack is movably associated with the cavity interior so as to be movable in an extraction and retraction movement. One or more motorized drive units and a kinematic coupling mechanism are also included. The kinematic coupling mechanism includes one or more kinematic coupling units and is configured for providing a kinematic coupling between the one or more motorized drive units and at least one of the rack and the carrier. The one or more motorized drive units and the kinematic coupling mechanism are configured such that an operation of the one or more motorized drive units is translated into at least one of the extraction movement and retraction movement of at least one of the rack and the carrier.

Clamping device (1) for clamping or gripping an object, comprising - a base body (11) which has an interface (111) for connection with a working or testing machine, wherein the base body (11) extends along a central axis (MA) and has at least four pairs of opposing guides (112) which extend radially to the central axis (MA), - at least four clamping elements (12), one of which is at least partially inserted into a guide (112), wherein the guide (112) holds and guides the clamping element (12) with one linear degree of freedom radially to the central axis (MA), and the clamping element (12) has at least one coupling surface (121) which is oriented inclined to the central axis (MA), - at least two coupling elements (13a, 13b), each of which is kinematically coupled to two clamping elements (12) radially opposite each other to the central axis (MA), wherein the coupling element (13a, 13b) has two transmission elements (131) spaced apart from each other radially to the central axis (MA), which extend at least partially tangentially to the circumferential direction around the central axis (MA), wherein each transmission element (131) is in contact with or can be brought into contact with a coupling surface (121) of a clamping element (12), and wherein the two coupling elements (13a, 13b) are movably mounted independently of each other in a direction parallel to the central axis (MA) in or on the base body (11), - at least two activation elements (14a, 14b), each of which is connected to one of the coupling elements (13a, 13b), wherein the activation elements (14a, 14b) are arranged to be movable independently of each other relative to the base body (11) at least in one direction parallel to the central axis (MA), wherein when an activation element (14a, 14b) moves in the direction of the central axis (MA), the coupling element (13a, 13b) connected to it also moves in the direction of the central axis (MA), and the interaction of the two transmission elements (131) of the coupling element (13a, 13b) with each a coupling surface (121) of a clamping element (12) translates the movement of the coupling element (13a, 13b) into a movement of two clamping elements (12) opposite each other radially to the central axis (MA) in the direction radially to the central axis.

The invention relates to the technical field of precise positioning tables, and discloses a high-reliability piezoelectric nano deflection table. And two first piezoelectric actuators parallel to the X axis and two second piezoelectric actuators parallel to the Y axis are arranged between the shell and the moving surface. The first piezoelectric actuator and the second piezoelectric actuator respectively comprise a first output end and a second output end. And the first output end and the second output end are connected with the moving surface. The two first piezoelectric actuators are used for driving the moving surface to deflect around the X axis, and the two second piezoelectric actuators are used for driving the moving surface to deflect around the Y axis. The parallel structure of the first piezoelectric actuator and the second piezoelectric actuator is adopted, and two-dimensional high-precision deflection of theta x and theta y is achieved. The flexible hinge of the vertical structure can limit the displacement of the moving surface in the non-moving direction. And the amplifying body is of a bilaterally symmetrical structure, so that the rigidity and the vibration resistance in the movement direction are improved. The whole structure is simple and compact, the motion coupling is small, the repeated positioning accuracy is high, the reliability is high, and the load is large.

The invention relates to a valve (100) for a valve group, comprising a valve housing (110) and a fluid channel (120) which is formed in the valve housing (110) and extends between an inlet connection and an outlet connection, in which fluid channel a valve element (140) is received in a linearly movable manner along a movement axis (301) between a first functional position and a second functional position, wherein the valve element (140) is provided with a permanent magnet (144) and is kinematically coupled to a drive mechanism associated with the valve housing (110), and wherein a magnetic field sensor for detecting the position of the valve element (140) is arranged in the valve housing (110), characterized in that a shield plate (150) is arranged on a side surface (112) of the valve housing (110) at the height of the permanent magnet (144), in order to reduce the magnetic flux density provided by the permanent magnet (144) in a spatial region of the outside of the valve housing (110) which adjoins the side surface (112).