106 results about "Pneumatic circuit" patented technology

An apparatus for automated pipetting arranged to automatically aspirate, transfer and dispense a liquid includes: an air displacement system to aspirate and dispense the liquid, including a pneumatic circuit and a pressure and vacuum source, pipetting means having a pipetting head (6) connected to the source by the pneumatic circuit, a pipetting tip to contain the aspirated liquid, following activation of the air displacement system to aspirate and dispense the liquid, an internal duct to convey the air displacement generated by the source, up to an end of the pipetting tip, for performing the aspiration and dispensing of the liquid, a first solenoid valve (4) in communication with the internal duct (9), for controlling leakage or retention of air flow introduced by the source, the valve being in a normally closed position, a flow sensor for detecting the volume of aspirated / dispensed liquid, the flow sensor being a MEMS thermal sensor.

The disclosure relates to a leak detection system for a pneumatic braking system of a vehicle. The pneumatic braking system has a control unit, a pneumatic circuit, and an air tank configured to supply pneumatic pressure to the pneumatic circuit. The pneumatic circuit has a plurality of valves configured to be individually controlled by the control unit. The link detection system includes program code configured, when executed by a processor, to individually control the valves of the pneumatic circuit so as to isolate a sub-circuit of the pneumatic circuit. The leak detection module is configured to monitor a pressure in the pneumatic circuit for leaks, wherein the leak detection module detects a leak in the sub-circuit if the pressure decreases while the sub-circuit is isolated.

A vacuum control method (P) for a pneumatic gripping system (10) which includes a vacuum source (26), a plurality of gripping members (13), and a pneumatic circuit (20), the pneumatic circuit (20) comprising a plurality of valves (27), each valve (27) being associated with a corresponding set of gripping members and being configured to switch between a closed position (F) and an open position (O), the pneumatic gripping system (10) including a vacuum sensor (28) adapted to measure a vacuum level in the pneumatic circuit (20) between the vacuum source (26) and the plurality of valves (27).

An air management system for a vehicle having a first pneumatic circuit and a second pneumatic circuit, in which the first and second pneumatic circuits are pneumatically connected in a neutral position via a cross-flow mechanism. The first pneumatic circuit is configured to independently adjust air pressure of a first side of the vehicle. The second pneumatic circuit is configured to independently adjust air pressure of a second side of the vehicle. The system is configured to establish pneumatic communication between the first and second pneumatic circuits when the air management system is not independently adjusting the adjust air pressure of the first side of the vehicle and the air pressure of the second side of the vehicle in the cross-flow mode.

The present invention discloses an inner tube vulcanization sealing device and its method. The device includes a valve nozzle, an O-ring, a steam pipe, a circulation channel, a dynamic sealing ring, a sealing ring, a solenoid valve and a cylinder; the O-ring is located in a groove on the inner wall of the steam pipe, and the O-ring is a rectangular ring; the O-ring forms a seal in the axial direction of the steam pipe through the pressure difference on both sides of the O-ring and the push of the pneumatic circuit. The valve nozzle includes an anti-corrosion rod and a valve nozzle rubber pad; the arc curvature of the edge of the valve nozzle rubber pad is less than 1, which can effectively reduce the phenomenon of tearing at the mouth edge. When the inner tube is vulcanized and clamped, pressure is applied to the valve nozzle through the die fork, so that the valve nozzle is located in the steam pipe and clamped by the O-ring. The present invention can enhance the sealing performance of the device, increase the inner diameter of the steam inlet pipe, improve the vulcanization and inflation speed of the inner tube and the discharge speed of the steam, and solve the problem of valve nozzle deviation.

The application discloses a kind of SF6 density relay comprehensive calibration instrument and calibration and measurement method, including intermediate pipeline and be located on the air pump of intermediate pipeline, the one end of the intermediate pipeline is respectively communicated with the one end of safety valve pipeline, first pipeline one end, second pipeline one end, the other end of intermediate pipeline is respectively communicated with the one end of micro water measuring pipeline and third pipeline one end, the other end of the micro water measuring pipeline is respectively communicated with the one end of inlet pipeline and purity measuring pipeline, the other end of third pipeline is respectively communicated with the other end of first pipeline and fourth pipeline one end, the other end of the fourth pipeline is respectively communicated with the other end of purity measuring pipeline, the other end of second pipeline and muffler pipeline, intermediate pipeline side is equipped with suction pipeline;The application has adopted new pneumatic circuit design, combines density relay system calibration circuit with moisture measurement circuit and purity measurement circuit together, with the characteristics such as high measurement efficiency, convenient, its loop structure is simplified, and measurement is efficient.

The present invention relates to a sealing test apparatus (D1) for a system that isolates two media in a sealed manner, the system including a flange and a sealing blocking device mounted in the flange, the test apparatus comprising: a housing (36) including an expandable seal (48) intended to contact the system in an expanded state and ensure the sealing of a test space defined between the system and the housing; a pneumatic pump (P1) and a pneumatic circuit (C1) configured to connect the pump (P1) to the expandable seal (48) in a first step such that the pump (P1) expands the expandable seal (48), and to connect the pump (P1) to the test space in a second step such that the pump (P1) generates a pressure of a given value in the test space; and means for measuring the pressure in the test space.

A brake system for a commercial vehicle, the vehicle comprising at least one front axle and at least one rear axle, the brake system comprising a redundant electro-pneumatic service brake system and an electro-pneumatic parking brake system, at least one axle being equipped with electro-pneumatic means comprising redundant electrical and / or electronic means, the control circuit is configured to control two independent electro-pneumatic circuits. At least one axle is equipped with a two-channel electro-pneumatic device with redundant electrical / electronic devices configured to control two separate pneumatic circuits, one of which is configured to control one or more service brake actuators associated with the at least one axle, and the other one of which is configured to control one or more service brake actuators associated with the at least one axle. The other circuit is configured to control one or more parking brake actuators associated therewith. The two-channel electro-pneumatic device includes a redundant axle module including a single-channel electro-pneumatic regulator and a single-channel electronic parking brake module, forming an integrated redundant electronic service brake control unit and an integrated electronic parking brake control unit.

This component mounting device comprises: a component holding head that has a suction nozzle; a driving unit that raises and lowers the component holding head; a pneumatic circuit that includes a first air flow path leading to the suction nozzle, a flow path switching unit, and a flow rate measuring instrument for measuring the flow rate of air in the first air flow path; an air flow rate limiting means that limits the first air flow path such that the flow rate of air becomes a minimum flow rate; and a pneumatic circuit inspection unit that operates the flow path switching unit in a state where the outflow or inflow of air from a suction nozzle holder is limited by the air flow rate limiting means, connects the first air flow path to a positive pressure source or a negative pressure source, and acquires the flow rate of the air measured by the flow rate measuring instrument.

The present invention relates to a closing device (3) intended to close a container (2) of phytosanitary product, the closing device (3) comprising a bottom wall (30) having at least three through openings, and a peripheral wall (31) projecting from the bottom wall (30), a first opening (33) being configured to be connected to a phytosanitary product outlet (5) allowing said phytosanitary product to be evacuated from said container (2), a second opening (34) being configured to open in a sealed manner into an inflatable membrane (36) and to be connected to an inlet of a pneumatic circuit (4), so as to allow an overpressure to be generated in the container (2) by the expansion of the inflatable membrane (36) by means of the pneumatic circuit (4), a third opening (35) being configured to be connected to an inlet of a hydraulic rinsing circuit (6). Abstract figure: Figure 1

The utility model relates to the technical field of ammunition feeding and conveying, solves the technical problems of complex structure, low efficiency and inconvenience in operation of a traditional ammunition feeding and conveying mode, and particularly relates to a pneumatic ammunition pushing device which adopts air pressure to push ammunition to move so as to realize the ammunition conveying action. Before working, an air compressor compresses rated air pressure to an air storage tank and a clamping and unlocking pneumatic loop, during working, an ultra-thin air cylinder is used for unlocking an OK clamp at the tail of a bullet, then a manual ball valve of a bullet conveying air path is operated, compressed air is divided into five paths from the air storage tank through an air exhaust distributor to the rear end of a bullet conveying barrel and pushes the bullet to slide, and the bullet slides to a bullet receiving box; the bullet is stopped under the buffering effect of a buffering nylon horn mouth on the head portion of the bullet receiving cylinder, and meanwhile the bullet locking clamp on the bullet receiving cylinder clamps the bullet to prevent the bullet from moving backwards. Air pressure is used for pushing the bullets to move, the bullet conveying action is achieved, multiple bullets can be conveyed at the same time, the structure is compact and simple, installation is convenient, operation is convenient, and action is rapid.

The invention relates to the technical field of industrial automation and robots, in particular to an industrial welding robot. The invention provides an industrial welding robot which comprises a welding platform, an arc-shaped guide rail is fixedly installed on the welding platform, the welding platform is rotationally connected with a first rotating frame, and the upper portion of the first rotating frame is fixedly connected with a sliding block embedded in the arc-shaped guide rail; a sliding frame is slidably connected into the first rotating frame in the vertical direction, a connecting frame is rotatably connected to the lower end of the sliding frame through a rotating shaft, and a laser welding assembly is slidably connected into the connecting frame. By means of the overturning mechanism composed of the winch, the chain rope and the arc-shaped guide rail and in combination with the pneumatic angle adjusting device, overturning of the rotating frame is automatically converted into precise adjustment and locking of the angle of the welding gun, and traditional manual adjustment is replaced. Through cooperative control of a mechanical track and a pneumatic loop, rapid alignment and reliable locking of a welding gun and a welding seam ring face are achieved, and the switching efficiency and the intelligent level are remarkably improved.

The application provides a pneumatic actuator control system, which comprises a control panel, a gas source manual valve, a filter pressure reducer, a split positioner, a flow regulating device, a quick opening device, a quick closing device, a holding device, a split position sensor and a junction box, which are all arranged on the control panel. The split positioner, the split position sensor and other control elements such as two-position three-way electromagnetic valves are arranged away from high temperature and vibration working conditions, so that the service life of each control element is greatly prolonged. The flow regulating device, the quick opening device, the quick closing device and the holding device are integrated, and different functional modules can be selected according to different specifications of the pneumatic actuator, so as to meet different functional requirements. The pneumatic actuator control system can be applied to the control of a pneumatic circuit under severe working conditions such as quick positioning and adjustment of a pneumatic actuator, independent switch control and the like, for example, the control of a valve pneumatic actuator under complex working conditions such as a turbine bypass valve and a compressor anti-surge valve.

The utility model relates to the technical field of automobile maintenance, in particular to an automobile maintenance work station with an electric circuit installation groove, which comprises a cabinet body, a grid plate is fixed on the surface of the cabinet body, the surface of the grid plate is connected with a lighting mechanism, and the lighting mechanism is convenient to use and work of the work station. The surface of the cabinet body is connected with an electrical circuit installation mechanism, the electrical circuit installation mechanism facilitates the installation work of an electrical circuit, the electrical circuit installation mechanism is composed of an installation groove, an installation strip, a fixed buckle and a movable buckle, the installation groove is formed in the surface of the cabinet body, a circuit gas circuit is arranged in the installation groove, and the movable buckle is arranged in the installation strip. A replacement mechanism is further arranged on one side of the cabinet body. According to the utility model, the wire and tube bunching work of the circuit and the gas circuit is realized, the disordered wiring of the circuit and the gas circuit is avoided, and the practicability and the convenience of the work station in use are improved.

The invention discloses a method and device for automatically designing a gas path diagram based on AI. The method comprises the steps that based on feature points of a three-dimensional model, key point cloud of the three-dimensional model is generated through a point cloud processing algorithm, and based on the key point cloud, part category recognition is conducted through a neural network model; correspondingly binding the identified part category with a preset two-dimensional legend block to obtain part legend binding data; analyzing the gas path schematic diagram vector file, extracting graphic metadata in the gas path schematic diagram vector file, and generating part connection relation data based on the part legend binding data and the extracted graphic metadata; and based on the part connection relation data, connecting the corresponding two-dimensional legend blocks and adding feature attributes to generate a gas path diagram. According to the invention, the technical problems of inaccurate gas path diagram generation and low efficiency in the prior art are solved.

This item is a pseudo-leak standard used in leak tests to detect leaks by pressurizing or depressurizing the inside of a test object and measuring the pressure change due to the leak, and it creates a pseudo-leak in the pneumatic circuit of the leak test equipment. The pseudo-leak test results are compared with the test results of the test object and are used to evaluate the sealability of the test object. This item is attached to a test object sample connected to the pneumatic circuit of the leak test equipment to form an inspection reference object (defective sample), or is attached directly to the piping of the pneumatic circuit to which the test object sample is connected. This item is threadedly connected to a jig in the pneumatic circuit or to a female thread machined into the test object sample. A through hole formed inside the body of this item has a tiny hole formed in the foil sandwiched between two seal rings, and when air pressure is applied, a leak occurs from the hole.

A device for cleaning an end face of an optical fiber may receive a first pressure signal from a first pressure sensor, wherein the device includes a pneumatic circuit, wherein the pneumatic circuit includes: one or more circuit components, the first pressure sensor, and a second pressure sensor. The device may receive a second pressure signal from the second pressure sensor. The device may determine, based on the first pressure signal and the second pressure signal, whether a pressure difference across a circuit component, of the one or more circuit components, satisfies a threshold. The device may perform, based on the pressure difference across the circuit component not satisfying the threshold, one or more actions.

The invention discloses a hydraulic and pneumatic comprehensive practical training device, and relates to the technical field of teaching practical training equipment, the device comprises a first test bench and a second test bench, the first test bench is provided with a practical training assembly, the practical training assembly is used for feeding, positioning, clamping and press fitting of a workpiece, the second test bench is provided with a control assembly, and the control assembly is connected with the first test bench and the second test bench. The control assembly is used for controlling the operation of the practical training assembly and can carry out the principle test of the hydraulic and pneumatic loop. By adding hydraulic and pneumatic operable mechanisms, practical training of system installation and debugging in hydraulic and pneumatic course teaching can be carried out, and development of teaching is facilitated.

The present invention discloses an induction brazing device and a welding method for multi-degree-of-freedom of irregular-shaped components. The induction brazing device includes a working platform, a robotic arm, an induction brazing coil, a three-degree-of-freedom working platform, etc. The two ends of the induction brazing coil are respectively connected to the ends of the two induction brazing coil robotic arms. Through the movement of the robotic arms, a current closed loop is formed at any position; the induction brazing coil is composed of multi-degree-of-freedom joints controlled by a pneumatic circuit, which can realize the brazing of workpieces of different shapes; the three-degree-of-freedom working platform controls the movement of the workpiece to realize the array-type induction brazing requirements of different positions of the workpiece; the three-degree-of-freedom working platform and the robotic arm realize intelligent coordinated movement through an adaptive linkage controller, which not only realizes the convenient clamping and disassembly of the workpiece, but also is applicable to the brazing of a large number of workpieces; the temperature monitoring device robotic arm can control the temperature monitoring device to monitor the surface temperature distribution of the workpiece in real time from multiple directions and angles.

The invention discloses a self-adaptive adjusting process system of a double-gun water vapor rust-proof sand blasting machine, and relates to the technical field of equipment treatment, the self-adaptive adjusting process system comprises a gas supply pipeline for providing high-pressure gas flow, and further comprises a rust inhibitor storage box, a clear water storage box, a sand tank, a control system, a sand blasting pipeline A and a sand blasting pipeline B. A water drainage pipeline is arranged at the bottom of the clear water storage box; a first water pump unit is arranged on the drainage pipeline, the output end of the first water pump unit is divided into first, second, third and fourth conveying pipelines, control valve groups are arranged on the first and third conveying pipelines, and the output ends of the control valve groups on the first and third conveying pipelines are divided into clear water branches A and B; according to the self-adaptive adjusting process system of the double-gun water vapor rust-proof sand blasting machine, three functional modes of sand blasting, flushing and blowing are integrated, stable and non-interfering switching among the modes is achieved through a core pneumatic loop, operation is easy and convenient, and the comprehensive efficiency and operation flexibility of equipment are improved.

The present invention relates to a closure device (3) for closing a container (2) of plant protection product, the closure device (3) comprising a bottom wall (30) having at least three openings, and a peripheral wall (31) projecting from the bottom wall (30), a first opening (33) being configured to be connected to a plant protection product outlet (5) allowing said plant protection product to be evacuated from said container (2), a second opening (34) being configured to open in a sealed manner into an inflatable membrane (36) and to be connected to an inlet of a pneumatic circuit (4), so as to allow an overpressure to be generated in the container (2) by the expansion of the inflatable membrane (36) by means of the pneumatic circuit (4), a third opening (35) being configured to be connected to an inlet of a hydraulic rinsing circuit (6).

A liquid or gaseous fuel burner has a supply circuit for supplying a liquid or gaseous fuel to a burner head (2); a first pneumatic circuit (3) configured to supply oxidation air to the combustion head (2) and provided with first valve means (7); and a second pneumatic circuit (4) configured to feed a flow of combustion fumes from the combustion head (2) into the first pneumatic circuit (3) and provided with second valve means (11) movable between a closed position and an open position of the second pneumatic circuit (4) and third valve means (12) movable between a closed position and an open position of the second pneumatic circuit (4). Third valve means are connected to the first valve means (7) to move between a closed position of the second pneumatic circuit (4) and a plurality of open positions for each open position of the first pneumatic circuit (3), and selectively control the emission of nitrogen oxides NOx. The liquid or gas fuel burner provided by the utility model has relatively many operation modes and relatively strong multifunctionality.

The utility model provides a pantograph test bed gas circuit control panel which comprises a valve plate, a one-way valve is installed on one side of the surface of the valve plate, a plurality of different electromagnetic valves are installed on the surface of the valve plate and located on one side of the one-way valve, and a filtering pressure regulating valve is installed on the surface of the valve plate and located on one side of the electromagnetic valves. An electric proportional valve is installed on the surface of the valve plate and located on one side of the filtering pressure regulating valve. And the multiple quick connectors are all installed on the side of the valve plate. According to the gas circuit control panel of the pantograph test bed, the multiple one-way valves, the electromagnetic valves, the filtering pressure regulating valves, the electric proportional valves and the multiple quick connectors are arranged on the surface of the valve plate respectively for cooperative operation, and the multiple components can be installed in a compact mode, so that the attractiveness of the whole device can be improved; and meanwhile, leakage can be prevented when pipelines among a plurality of components are connected.

The invention relates to a method for controlling a fluidic valve (V) of a fluidic system, the fluidic valve (V) comprising an inlet fluidic channel (11) and an outlet fluidic channel (12), and a diaphragm (13) arranged between the inlet fluidic channel and the outlet fluidic channel, deformable between two distinct positions, the fluidic system comprising a device for actuation of the diaphragm (13) between its two distinct positions, the actuation device comprising a hydraulic circuit and a pneumatic circuit, said pneumatic circuit being connected to the hydraulic circuit. Figure to be published with the abbreviation: Figure 2

The invention relates to the field of fairing butt joint tools, in particular to a rocket fairing fixture butt joint tool and a using method.The rocket fairing fixture butt joint tool comprises a butt joint electric track, sliding plates are slidably connected to the surface of the butt joint electric track, and the sliding plates and other structures of the sliding plates are symmetrically arranged on the other side of the butt joint electric track; the surface of the sliding plate is fixedly connected with a movable supporting device, one side of the movable supporting device is fixedly connected with a clamping and stabilizing mechanism, and the clamping and stabilizing mechanism comprises a rocket fairing supporting plate. In the invention, a high-speed and sensitive negative feedback dynamic balance system is formed through a limited shaking interval provided by the movable supporting device and a closed pneumatic loop formed by the stabilizing mechanism and the reverse driving pneumatic device. When vibration or deviation is generated due to tracks, driving or loads in the butt joint process, the system can instantly detect and convert mechanical swing into air pressure signals, the opposite side is automatically driven to generate reverse correction force, and active damping and real-time deviation correction of shaking are achieved.

A method (P) for controlling vacuum for a pneumatic gripping system (10) which comprises a vacuum source (26), a plurality of gripping members (13) and a pneumatic circuit (20), the pneumatic circuit (20) comprising a plurality of valves (27), each valve (27) being associated with a corresponding set of gripping members and being configured to switch between a closed position (F) and an open position (O), the pneumatic gripping system (10) comprising a vacuum sensor (28) adapted to measure a vacuum level in the pneumatic circuit (20) between the vacuum source (26) and the plurality of valves (27). Abstract Figure: Figure 2

The utility model discloses a pressure-maintaining suction cup clamp for a soft package battery. The pressure-maintaining suction cup clamp comprises a supporting plate, the multiple suction cup sets are arranged below the supporting plate, and the suction cups in each suction cup set are each provided with a one-way valve. The plurality of Y-shaped adapter groups are respectively connected with the suction cup groups; the vacuum generator is connected with the multiple Y-shaped adapter sets, and the vacuum generator is used for providing negative pressure for the suction cup sets; and the plurality of suction cup groups and the plurality of Y-shaped adapter groups form a plurality of pneumatic loops. According to the utility model, when air leakage occurs in one loop, the two suction cups cannot ensure a vacuum environment, and the two vacuum suction cups in the other loop can also ensure the vacuum environment, so that a vacuum adsorption state is maintained for a period of time, and explosion caused by falling of a battery and time for manual interference are prevented.

This invention relates to the field of underwater lifting device technology, and provides an air-cushioned, multi-stage pneumatic lifting system. The system includes a lifting device and a pneumatic circuit. The lifting device includes a base and three lifting rods—a first-stage, a second-stage, and a third-stage lifting rod—coaxially arranged inside the base and capable of extending upwards in stages. The lifting device forms a first retraction chamber, a second retraction chamber, and a third retraction chamber from the outside in. A first connector penetrating the base is provided at the upper part of the base, and the bottom of the base is fixedly connected to a bottom cover. A second connector penetrating the bottom cover is provided on the bottom cover. The top of the third-stage lifting rod is fixedly connected to a plug. According to this embodiment, the air-cushioned, multi-stage pneumatic lifting system can more precisely control the complete and smooth extension and retraction of each stage of the lifting rod, improving the airtightness of the lifting system.

Sorting installation with improved compressed air management and corresponding management method The invention relates to an installation (1) for sorting objects (2) with a sorter (3) with planar geometry, also comprising, on the one hand, an air cooling system (8) for at least one system (5, 9) thereof which is subject to heating during operation, which incorporates at least one vortex tube (10), and, on the other hand, a pneumatic architecture (11) for distributing compressed air supplied by at least one compressor (12) and supplying at least one pneumatic ejection system (6) and the cooling system (8).An installation characterized in that it comprises a single pneumatic circuit (11) for distributing compressed air supplied by a compressor (12) with a means (13) for regulating the inlet pressure, in that said pneumatic distribution circuit (11) comprises several separate branches (14, 14', 14'') corresponding to as many distribution lines, and in that the line (14') supplying the cooling system (8) comprises a means (16) for passively over-pressurizing the compressed air from the compressor (12) before its injection into the vortex tube(s) (10). Figure to be published with the abbreviation: Fig. 2.