47results about How to "Precise control of movement" patented technology

The invention discloses a wheelchair with an object-taking function and a control method thereof. The wheelchair includes an electric wheelchair, a humanoid robotic arm and a wheelchair control system, and the wheelchair control system includes an eye tracker, a microcomputer, a camera, and a microphone. The method for controlling the object taking includes the steps of: 1. the disabled person sits in the electric wheelchair and wears the eye tracker; 2. the disabled person firstly speaks to the microphone to tell what item he wants to take, and then looks at the position where the wheelchairis to arrive; 3. the wheelchair control system controls the position of an eye gaze point that the electric wheelchair needs to reach from the current position to the wheelchair; 4, the item that thedisabled person wants to take is obtained, and the center coordinate of the target information is determined; and 5. the wheelchair control system controls the humanoid robotic arm to reach the position of the item and take the object. The wheelchair has novel and reasonable design and high control precision, so that the electric wheelchair and the humanoid robotic arm can automatically assist thedisabled person to take things, which greatly facilitates the life of the disabled person and has strong practicability.

The invention discloses a force-feedback teleoperation main hand. The force-feedback teleoperation main hand comprises a first connecting rod part, a second connecting rod part, a third connecting rodpart, a fourth connecting rod part, a fifth connecting rod part and a knob part which are sequentially connected, all the connecting rod parts are connected through rotating joints, a potentiometer or an encoder is mounted on each rotating joint, wherein motors and decelerators are mounted at the rotating joints among the first connecting rod part, the second connecting rod part and the third connecting rod part; and the motors are connected with the input ends of the decelerators or the motors and input ends of the decelerators are in transmission connection through synchronous belts, and the output ends of the decelerators are connected with the corresponding potentiometers or the encoders. The force-feedback teleoperation main hand can be fixed for being used, and can also be carried by an operator for moving type operation, movement of all the joints can be controlled by fully using flexibility of human hands, and operation is accurate; and the three joints at the tail ends are compactly laid out together, the structure is small and exquisite, and operating space and flexibility of fingers can be fully used.

The invention relates to an automatic pouring system. The system comprises a base, a vertical plate, a fixed shaft, an insulation casing, a crucible, a heating ring, an insulation material, a driven wheel, a transmission shaft, a driving wheel, a cam, a telescoping cylinder, a guide rail and a travelling trolley, wherein a main articulated rod is connected with the rear side of the travelling trolley in a pivoted manner; an auxiliary articulated rod is connected with the middle of the main articulated rod in a pivoted manner; a rolling wheel is arranged at the bottom of the auxiliary articulated rod; an auxiliary guide rail is arranged at the top of the travelling trolley; a supporting seat is provided with a transmission roll; the supporting seat is provided with a conveying motor; the travelling trolley is connected with a lifting cylinder in a pivoted manner; and an expansion rod of the lifting cylinder is connected with the lower middle part of the auxiliary articulated rod in a pivoted manner. The system effectively prevents cooling or oxidation of raw materials by transmitting driving power of the unilateral telescoping cylinder on the transmission shaft, the driving wheel and the driven wheel to the two sides of the insulation casing to enable the crucible to stably turn, and is good in pouring effect. The system is convenient in butt joint of pouring openings through the travelling trolley, realizes the lifting of dies through the telescoping cylinder, the main articulated rod and the auxiliary articulated rod, and is simple in structure.

The invention relates to a motor-driven hydraulic clutch and an automobile, wherein a motor stator coil (2) is powered on to control a motor rotor (3) to rotate; a hollow part of the motor rotor (3) and a trapezoidal screw nut (28) are fixed together; the hollow part rotates to drive the trapezoidal screw nut (28) which is inside the hollow part; a trapezoidal screw rod (5) is matched with the trapezoidal screw nut (28), does rectilinear motion with rotation of the trapezoidal screw nut (28) and is used for pushing hydraulic oil in an oil cylinder I into an oil cylinder II and pushing a piston (19) to move; the piston (19) inside the oil cylinder II moves to drive a clutch push rod (16) to move; a displacement sensor magnetic ring (22) is mounted on the piston (19); a displacement sensor (36) is matched with the displacement sensor magnetic ring (22) to detect the displacement of the clutch push rod (16). The motor-driven hydraulic clutch disclosed by the invention is capable of realizing automatic clutching, and no extra hydraulic source is needed, so that the overall executing mechanism is compact in structure, convenient to install and relatively high in reliability.

A transfer tool comprises: a first support framer that is installed to be movable along a transfer tool guide track of a semiconductor processor; a pair of second support frames that is connected with the first support frame through a gap and has a plurality of pickups having gap therebetween and picking up the semiconductor devices; and a vertical gap controller for controlling the gap of the pair of the second support frames by moving a pair of second support frames, wherein the vertical gap controller includes: a vertical driving unit installed on the first support frame to generate a vertical driving force; and a linear moving unit installed on the first support frame and connected to the second support frame; the gap between the second support frames is controlled by the linear movement of vertical driving unit.

The invention discloses a high-efficiency conveying line reversing device, and relates to the technical field of assembly line transportation. According to the key points of the technical scheme, the high-efficiency conveying line reversing device comprises a mounting frame provided with supporting feet, a jacking plate, a plurality of rolling shafts and a push plate are mounted on the upper end face of the mounting frame in a vertically sliding mode, the rolling shafts transfer cargoes from an assembly line to the jacking plate, the push plate pushes the cargoes on the jacking plate to an inclined transfer table through reciprocating motion, the push plate is in power connection with a driving device through a first transmission device, so that the cargoes are pushed in a reciprocating mode; and one side of the first transmission device is in power connection with a second transmission device to drive all the rolling shafts to rotate synchronously, and a driving assembly for driving the jacking plate to slide up and down is further arranged on one rolling shaft. According to the technical effects, the use of a power source can be reduced, and the production and equipment manufacturing cost can be saved.

The invention discloses a device and a method for measuring section steam content of a tube bundle area of a steam generator. The measuring device comprises a gamma ray emitting and receiving device,a gamma ray scanning mobile measuring platform, a stepping motor driving and control system and a ray counting rate collecting system. Through a gamma ray scanning method, the section steam content onany chord length between secondary side tube bundles of the steam generator can be obtained continuously; and structure parameters and flow parameters of the steam generator are considered, and a calculation formula is corrected, so that complex geometrical structures of the tube bundles and different fluids on the primary and secondary sides can be distinguished accurately, and the difficult problem of measurement of the section steam content between the secondary side tube bundles of the steam generator is solved.

The invention discloses a jointed connecting link mechanism with linkage between a moving side mold and a bottom mold of a bottle blowing machine. A side mold rotor arm which drives the side mold to carry out separation and reunion motion synchronously drives the bottom mold to carry out deflection lifting motion while drives the moving side mold to carry out separation and reunion motion, the separation and reunion motion of the moving side mold can be in accurate cooperation with deflection lifting motion of the bottom mold, and then it is implemented that the deflection lifting motion of the bottom mold can be in effective synergy with the separation and reunion motion of the moving side mold. According to the jointed connecting link mechanism with linkage between the moving side mold and the bottom mold of the bottle blowing machine, after a first plane four-bar linkage is connected with a space dual-swing slider mechanism in series, and then a formed tandem type combined connecting rod type bottom mold deflection lifting mechanism is combined with a second plane four-bar linkage. Parts are connected with one another through sliding pairs or revolute pairs or spherical pairs. The jointed connecting link mechanism with linkage between the moving side mold and the bottom mold of the bottle blowing machine is simple and low in live load; and the vibration and impact of the mechanism can be effectively reduced, abrasion of the parts is reduced, the motion of the bottom mold can be accurately controlled, the bottle blowing machine is improved in motion stability and reliability, and the high-speed performance of the whole machine is improved.

The invention provides a cooling, cleaning and detachable mounting device and method for a building roof photovoltaic power generation panel, and relates to the field of photovoltaic building integration. The device comprises a cooling and cleaning unit composed of a cleaning part, a cooling part and a first driving part; the cooling part is provided with a temperature sensor installed on the back face of the photovoltaic power generation panel, and when it is monitored that the temperature is too high, cooling and cleaning of the photovoltaic power generation panel are started. Wherein the cleaning part is provided with cleaning cotton, the cooling part is provided with a water spraying mechanism with the water spraying direction facing the cleaning cotton, the water spraying mechanism sprays water to the cleaning cotton through deformation of a plastic telescopic pipe arranged in the water spraying mechanism, then the first driving part drives the cleaning cotton to reciprocate on the light receiving face, and then the light receiving face achieves the cooling and cleaning effects in a water evaporation and heat absorption mode. The photoelectric conversion efficiency of the photovoltaic power generation panel is improved; the photovoltaic power generation panel is detachably installed on the building roof, installation and disassembly are simple and fast, and the installation and disassembly cost is remarkably saved.

The invention provides an electrically operated valve, a control method and device of the electrically operated valve and a nonvolatile storage medium, and the control method of the electrically operated valve comprises the steps that a movable valve plate of the electrically operated valve is made to move to an initial position, and zero alignment is conducted on the movable valve plate; recording an initial position; and the preset movement position of the movable valve plate is obtained, and the brake valve plate is controlled to rotate according to the angle difference value between the preset movement position and the initial position so that the movable valve plate can move to the preset movement position. By means of the technical scheme, the technical problem that in the prior art, large errors exist in the position adjusting precision of an electric valve can be solved.

The invention discloses an automatic plugging and unplugging device (100) for electric function testing of circuit boards. The automatic plugging and unplugging device (100) comprises a flat cable fixing unit (110), a driving unit (120), and a pressure sensor (130), wherein the flat cable fixing unit (110) is used to support and fix a flat cable (140); the driving unit (120) can drive the flat cable fixing unit (110) to move, so that the flat cable (140) can be connected to a circuit board to be tested (150); and the pressure sensor (130) is mounted between the flat cable fixing unit (110) andthe driving unit (120), so as to sense a driving force applied by the driving unit (120) on the flat cable fixing unit (110). The automatic plugging and unplugging device has the advantages that theflat cable can be automatically plugged into the circuit board to be tested, and can be precisely aligned with the circuit board.

The invention belongs to the field of mechanical engineering testing, and provides a large-stroke displacement high-precision measuring device based on a dynamic balance work principle. A, B and C hydraulic cylinder subsystems are designed below a measured moving shaft, the A subsystem and the B subsystem are plunger type hydraulic cylinders and have the diameter ratio of 1:3; incompressible hydraulic oil is used as a transmission medium; displacement detected by a B system sensor is magnified by 9 times, and a high-precision servo motor can control precisely motion of a lead screw, so that a signal outputted by the B system high-precision displacement sensor can always be maintained in a dynamic stable invariant state. The device has the advantages of smart structure, reasonable layout, strong adaptability, long service life and high measuring precision, can solve the problem of high-accuracy and bidirectional measurement in a wide-range full range, and has good economy and popularization value.

The embodiment of the invention discloses a self-locking control method of a gate blocking part, a gate control system and equipment, which are used for solving the problem that the self-locking mode of the existing gate blocking part is difficult to consider the moving speed and the self-locking torque of the blocking part, so that the gate is easily damaged or the self-locking fails. The method comprises the following steps: determining a gate operation mode of a gate control system; if the gate operation mode is the self-locking mode, the reduction ratio of the adjustable speed reducer is controlled to be a first reduction ratio corresponding to the self-locking mode; the operation current in the gate control system is controlled to be smaller than or equal to a preset current threshold value; and controlling the blocking part to move towards the target position according to the first reduction ratio. According to the technical scheme, the self-locking torque of the blocking component in the self-locking mode and the moving speed of the blocking component in the non-self-locking mode can be considered, meanwhile, the situation that a gate control system breaks down due to the fact that the running current is too large can be avoided, and stable self-locking of the blocking component is achieved.