92results about How to "Smooth and precise movement" patented technology

A Force feedback type compliant orthotic device includes a fixing base, driving unit, first limb supporting unit, and second limb supporting unit. The driving unit has a motor disposed at the fixing base and an output shaft connected to the motor. The output shaft is inserted into a joint base to connect with a resilience unit. The first limb supporting unit has a first supporting element fixed at the fixing base and a first electromyographic signal sensor disposed at the first supporting element. The second limb supporting unit has a second supporting element disposed at the joint base and a second electromyographic signal sensor disposed at the second supporting element. The motor generates appropriate auxiliary power according to the sensing result of the first and second electromyographic signal sensors, such that the first and second supporting elements move relative to each other precisely.

In a roller type transmission device 1, an array 11 of transmission pin rollers is press fit circularly into an inner side surface 10a of a stationary ring 10, and an array 18 of controllable pin rollers is press fit circularly into an inner side surface 13c of a rotational ring 13. To pin rollers 11a, 18a, employed are high precision cylindrical rollers or needle rollers which are usually used for a roller bearing or the like. Such is the structure that the array 11 of transmission pin rollers and the array 18 of controllable pin rollers work as inner teeth to make a backlash phenomenon minimum, rendering a pitch distance precise between the pin rollers, maintaining a uniform tooth profile with a high precision, equalizing a surface roughness and improving a meshing precision between the pin rollers 11a, 18a and the teeth 7a, 8a.

A robotic single axis system includes an effector moveable around a single rotating axis. The system is substantially concentrically arranged and mounted adjacent a wafer chuck of a precision stage. The robotic effector has a tangential distal end with a carrying face for positioning the wafer between concentric pinlifters raising from the wafer chuck. The pinlifters load and unload the wafer from the effector. The effector reaches with addition of the stage's travel into a cassette and alternating into a prealigner positioned on top of each other on an adjacent elevator. The elevator provides Z-axis movement so that the effector may load and unload wafers from the cassette, and alternating inserts a carried wafer into the prealigner.

The invention discloses a packing and stacking device for a smoke alarm assembly production line, belonging to the field of product assembly equipment. The packing and stacking device comprises a packing box feeding device, a grabbing and packing device, a conveying device and a stacking device, wherein the conveying device is arranged between the packing box feeding device and the stacking device; the packing box feeding device comprises a package pushing and conveying mechanism and a baffling mechanism; the package pushing and conveying mechanism and the baffling mechanism are arranged on one end of the conveying device; the grabbing and packing device stretches over the conveying device and the product assembly line; the stacking device comprises a stacking pushing and conveying mechanism, a stacking pushing-out mechanism and a lifting stacking mechanism; the stacking pushing and conveying mechanism is arranged on one side of the conveying device; the lifting stacking mechanism is arranged on the other side of the conveying device; and the stacking pushing-out mechanism is arranged on one side of the lifting stacking mechanism. According to the packing and stacking device, manual packing and stacking work is replaced by mechanical equipment, so that packing and stacking efficiency for smoke alarms is greatly improved; and manual labor intensity and labor cost are lowered.

A traffic signal device convenient to use comprises an upright mounting column and a display framework assembled at the top of the upright mounting column, wherein the display framework comprises a frame body, a plurality of rotating shafts assembled on the frame body and a drive device driving the rotating shafts to rotate; each rotating shaft is sleeved with a regular triangular prism; each regular triangular prism is provided with a first display surface, a second display surface and a third display surface; a plurality of first display surfaces jointly form a red light signal indication surface; a plurality of second display surfaces jointly form a yellow light signal indication surface; and a plurality of third display surfaces jointly form a green light signal indication surface. With the adoption of the traffic signal device, traffic signals can be switched among the red light indication surface, the yellow light indication surface and the green light indication surface which are jointly formed on the three display surfaces respectively through synchronous rotation of each regular triangular prism, so that a traffic indication function can be achieved without luminescence, the electric energy can be saved, a traffic signal controller is not required, and accordingly, the cost is greatly saved.

The invention provides an underwater bridge pier detection device and method thereof. The device is applied to a bridge pier. The device comprises an overwater frame and an underwater frame which are oppositely arranged on the periphery of the bridge pier, and a movable guide rod assembly and a lifting traction piece which are arranged between the two frames; annular driving pieces are arranged at the opposite ends of the overwater frame and the underwater frame correspondingly, the upper end and the lower end of the movable guide rod assembly are in transmission connection with the two annular driving pieces correspondingly and used for driving the movable guide rod assembly to rotate around the periphery of a pier, and the upper end and the lower end of the lifting traction piece are connected with the overwater frame and the underwater frame correspondingly for pulling the underwater frame to lift. The device also comprises a detection trolley which is arranged on the movable guide rod assembly in a sleeving mode and moves up and down, and the detection trolley is used for detecting the diseased part of the bridge pier. The device is suitable for piers in various shapes, can continuously scan the complete surface of the pier, and is high in working efficiency.

The invention relates to the field of automatic transplanting in fertility agriculture, and particularly relates to a pot seedling transplanter. The pot seedling transplanter comprises a first transfer belt, a second transfer belt and a pot seedling transplanting mechanism, wherein a seedling tray conveying mechanism and a seedling tray positioning mechanism are arranged on the first transfer belt; the seedling tray conveying mechanism comprises a seedling guiding device; the seedling tray positioning mechanism comprises a first connecting rod positioning device; a seedling supply tray conveying mechanism and a seedling supply tray positioning mechanism are arranged on the second transfer belt; the seedling supply tray conveying mechanism comprises a plurality of seedling supply tray guiding devices; the seedling supply tray positioning mechanism comprises a second connecting rod positioning device; the pot seedling transplanting mechanism is erected on the first and second transfer belts; and the pot seedling transplanting mechanism comprises a clamping device. The pot seedling transplanter can solve the inaccuracy of seedling tray and seedling supply tray moving positions by adopting the design, can be used for accurately transferring seedling trays to the transplanting position, so that the work efficiency of plug pot seedling transplanting can be improved.

A detecting gauge with high accuracy mainly comprises a machine table, a detecting set, a clamping apparatus, a detecting apparatus, and a sliding apparatus. Particularly, the sliding apparatus includes a sliding rail disposed on a machine table and a sliding base slidably disposed on said sliding rail. A sliding groove is disposed on both sides of the sliding rail, an embedding portion is formed on the sliding base for matching the sliding groove, and a plurality of rollers are embedded on a surface of said embedding portion which is in contact with said sliding groove. By matching the embedding portion with the sliding groove, the sliding base can be slid and moved precisely and smoothly on the sliding rail, and a target to be detected can be stably held by the clamping apparatus, whereby the detecting apparatus can obtain the measurement with high accuracy.

The invention relates to a contact rear sleeve riveting tool comprising a base. A cylinder and a riveting device are mounted on the base. The riveting device comprises a slide block circular seat; the center of the slide block circular seat is provided with a positioning through hole; the top surface of the slide block circular seat is provided with a cylinder boss coaxial with the slide block circular seat; the cylinder boss is provided with horizontal cross recess penetrating the cylinder boss; the center of the cross recess is communicated with the positioning through hole; and four slide blocks in a cross structure are placed in the cross recess. The head of each slide block has a steeple top; the tail of each slide block has an arc surface; and the tail of each slide block extends from the outer side of the cylinder boss. A pressure spring arranged in the direction of the cross recess is arranged at the bottom of each slide block; one end of the pressure spring is connected to the corresponding slide block; and the other end of the pressure spring is fixedly connected to the slide block circular seat. The slide blocks simultaneously press a contact rear sleeve located in the positioning through hole of the slide block circular seat after the slide blocks move toward the center in the cross recess, and then the riveting is completed.

The invention relates to an ultrahigh-pressure hydraulic testing machine for a steel pipe, in particular to an internal type ultrahigh-pressure hydraulic pressure testing machine for a large-diameter steel pipe and a hydraulic system of the hydraulic pressure testing machine. The hydraulic testing machine comprises a piston cylinder body, a front cover, a rear cover, a piston, a piston rod, a rear-end zigzag nut, a front-end zigzag nut, an internal sealing mold and an external sealing mold, wherein the front cover and the rear cover are located at two ends of the piston cylinder body; the piston and the piston rod are located in the cylinder body; the rear-end zigzag nut is used for fixing the piton rod; the front-end zigzag nut is used for transmitting force to a tested steel pipe; the internal sealing mold and the external sealing mold are used for sealing and fixing the tested steel pipe; an inner cavity of the cylinder body is divided into a rodless cavity body and a rod cavity by the piston. The hydraulic system comprises a low-pressure oil power system, an electrical-hydraulic closed-loop control system, a high-pressure water pump accumulator power system, a low-pressure water supply system and an oil pressure driving device. According to the hydraulic testing machine and the hydraulic system, cylindrical closed space is formed in the tested steel pipe, and an ultrahigh-pressure hydraulic test can be performed on the tested steel pipe without any other external force; the hydraulic testing machine and the hydraulic system are suitable for the ultrahigh-pressure hydraulic test of the large-diameter steel pipe, the equipment weight can be greatly reduced, and the investment can be reduced by times.

The invention discloses a bar material blank processing device which comprises a cutter holder, a cutter holder seat, a linear ball guide rail, a ball screw, a column, an upper servo motor and a lower servo motor. The cutter holder and the cutter holder seat are used for fixing an external circle turning tool, the linear ball guide rail is fixed on the column, the ball screw is arranged in the longitudinal direction of the linear ball guide rail and parallel to the linear ball guide rail, the cutter holder seat is connected with a nut seat of the ball screw, the two sides of the cutter holder seat are arranged in slide grooves on the two sides of the linear ball guide rail, the upper end of the ball screw is connected with an output shaft of the upper servo motor through a coupling, the upper end of an upper thimble is connected a clamping and adjusting device which can adjust the vertical position of the upper thimble, the clamping and adjusting device is fixed on the column, and a lower thimble is connected with an output shaft of the lower servo motor to achieve rotation of bar material blanks. The rotation motion of the ball screw is converted into the linear motion of the nut seat to drive the cutter holder seat to slide along the linear ball guide rail, so that external circles of the bar material blanks can be longitudinally turned. By means of the bar material blank processing device, the problems that bar material blanks are inconvenient to clamp, prone to being broken in transmission and the like are solved. Furthermore, a pre-sintering link is removed.

The invention relates to the technical field of livestock breeding, in particular to forage bundle loading lifting equipment for livestock breeding and a using method of the forage bundle loading lifting equipment. The equipment comprises a supporting frame, a moving assembly, a sliding cylinder and a loading and unloading assembly. The height of a lifting plate can be adjusted up and down, so that the equipment can lift forage bundles at different height positions, the application scene of the equipment is increased, and the use range of the equipment is widened; the forage bundles are shoveled by moving the lifting plate left and right, so that the equipment achieves an automatic feeding function for lifting the forage bundles, the labor burden is reduced, the speed of loading of forage bundles for livestock breeding is increased, and the use efficiency of the equipment is improved; and the forage bundles are shoveled by moving the lifting plate up and down and moving the lifting plate left and right, so that the equipment can also automatically feed and lift the stacked forage bundles, and the use range of the equipment is further widened.