41 results about "Plane joint" patented technology

The invention discloses automatic box-packing equipment and process for industrial seismic explosive columns; the output end of a belt delivery mechanism of the equipment is vertically connected with an explosive column shaping roller way mechanism, a code spraying device is arranged above a belt of the belt delivery mechanism, and the output end of the explosive column shaping roller way mechanism is connected with a secondary explosive column shaping mechanism; a plane joint manipulator is arranged above the secondary explosive column shaping mechanism and a carton box locating mechanism, one end of the carton box locating mechanism is connected with the output end of a carton box feeding roller way mechanism, the carton box locating mechanism is connected with the input end of a roller way output mechanism, and a baffle plate placement mechanism is arranged at one side of the carton box locating mechanism. According to the invention, the explosive columns are placed into an empty carton box for packaging through vertical conveying, code spraying, cross conveying for primary shaping, and secondary shaping, and the baffle plate is automatically arranged between the explosive column layers for conveying of finished products; no permanent operating personnel is needed in the whole processes from explosive column supplying, carton box packing and encasement operation, less operating persons are required, the automatic degree is high and the production efficiency is improved.

The invention discloses an industrial robot absolute accuracy calibrating method based on IEKF. The method is characterized by comprising the following steps: a parameter error model is built, and a laser tracking system is used for sampling data in a robot terminal position in a Cartesian space to obtain position errors under different coordinates; geometric parameter nominal values are used for building a kinetic model of a robot, and parameter vectors to be identified are built by combining with a vector product method to obtain a parameter Jacobian matrix; and parameter errors in the parameter error model are identified by using an IEKF algorithm, and parameter errors of the robot are obtained through iterative computation. Finally, the parameter errors are used for correcting the geometric parameter nominal values to finish kinematic calibration of the industrial robot so as to realize absolute accuracy calibration of the robot. The robot absolute accuracy calibrating method based on IEKF, provided by the invention, is suitable for any serial joint robot and any plane joint robot.

The invention discloses a device for testing shear strength of a joint of an external prestressing prefabrication and assembly concrete member. The device disclosed by the invention is characterized in that a first segment of the concrete member is arranged on a support, a hydraulic jack is loaded on the upper end face of a second segment of the concrete member; the cross section of the first segment of the concrete member is of an L shape, the cross section of the second segment of the concrete member is of an inverted L shape, the first segment of the concrete member and the second segment of the concrete member are assembled into a vertical joint, an upper horizontal plane joint and a lower horizontal plant joint by virtue of a post-tensioning prestressing tension device, the upper horizontal plane joint and the lower horizontal plane joint are respectively connected with at least one vertically arranged displacement sensor in a bridging manner, and the vertical joint is connected with one group of displacement sensors horizontally arranged in a bridging manner; and the center connecting line of the support and the hydraulic jack is coincided with that of the vertical joint. The device disclosed by the invention has the advantages that the bending moment of a loaded concrete member can be avoided, pure shear loading is realized, the displacement sensors are arranged at the joint, double control on loading is carried out by virtue of a force and displacements, and the loading failure time can be timely known, so that the device disclosed by the invention has certain safety.

The invention provides a high-pitch loudspeaker with an improved glottal catch mounting structure, which comprises a T iron, a magnet, a washer, a glottal catch and a vibrating diaphragm. The magnet is positioned between the T iron and the washer; the T iron is provided with a center hole; the glottal catch is inserted into the center hole to be fixedly connected onto the T iron; a flexible gasket is arranged at the plane joint of the glottal catch and the T iron; the vibrating diaphragm is positioned above the glottal catch and covers the glottal catch; and a sound conduction gap is reserved between the vibrating diaphragm and the glottal catch. According to the high-pitch loudspeaker with the improved glottal catch mounting structure, which is provided by the invention, by carrying out optimization and improvement on the structure of the loudspeaker, an integral glottal catch passage and a glottal outlet are designed on the same part, and the high-temperature flexible gasket is adopted between the glottal catch and the T iron, so that high stability of an acoustics path can be ensured, an SPL curve of the high-pitch vibrating diaphragm is smooth, and sound quality of the loudspeaker is ensured.

A vehicle seatback assembly includes a cushion assembly having a seating surface. A back panel includes a first side portion, a second side portion, and a back portion. A first living hinge is disposed between the first side portion and back portion. A second living hinge is disposed between the second side portion and back portion. A frame is disposed between the back panel and the cushion assembly. A peripheral cushion structure supports a periphery of the cushion assembly. A closeout panel is coupled with the back panel and is disposed behind the cushion structure to define a peripheral gap between the closeout panel and the cushion structure that extends around the sides of said seatback assembly. A shingled portion of the closeout panel extends behind and couples with the back panel. An airbag is coupled with the frame and is configured to deploy between the closeout and back panels.

The invention discloses a plane joint type robot and an outer rotor joint device. The robot comprises a base, a first outer rotor joint device, a first mechanical arm and a mechanical hand, wherein the first outer rotor joint device is arranged at the base, the first mechanical arm is driven by the the first outer rotor joint device, and the mechanical hand is connected with the first mechanical arm; the first outer rotor joint device comprises a fixed shaft, a stator iron core, a motor coil, an inner rotor component, an outer rotor component and a magnetism adjusting ring, wherein the fixed shaft is fixed relative to the base and extends along the longitudinal axis, the stator iron core is fixedly arranged on the fixed shaft, the motor coil is wound on the stator iron core, the inner rotor component is located on the periphery of the motor coil, the outer rotor component is located on the periphery of the inner rotor component, and the magnetism adjusting ring is located between the inner rotor component and the outer rotor component in the circumferential direction; and the first mechanical arm is fixedly connected with the outer rotor component, and certain gaps are formed between the inner rotor component, the magnetism adjusting ring and the outer rotor component in the circumferential direction. According to the robot and the device, the precision of transmission is high,the utilization rate of a permanent magnet is high, the structure is simple and compact, and the cost is low.

The invention relates to a multifunctional node lock catch device for monitoring and enhancing structural stability. A sleeve or a sleeve disc, a sensor and a matched supporting element are additionally arranged in a node area formed by converging and connecting a plurality of rod pieces. Two ends of the sleeve are locked on the rod pieces on two sides of the plane joint, the periphery of the sleeve disc is locked on the rod pieces on the periphery of the space joint, and therefore the rod pieces and the sleeve or the sleeve disc are jointly stressed. When the structure begins to be unstable,node deformation is caused to be rapidly increased, after the deformation exceeds a certain range, a sensor arranged below the node is triggered, and an early warning signal is sent out; and meanwhile, the joint and the sleeve or the sleeve disc are integrally stressed, internal force redistribution occurs, and the purpose of preventing or delaying structural instability is achieved. The out-of-plane gap between the sleeve and the rod pieces is reduced, and the out-of-plane rigidity and stability of the structure can be enhanced. By means of the characteristic that the multifunctional joint lock catch is detachable, the multifunctional joint lock catch is convenient to install in a newly-built structure, suitable for being additionally arranged in a reinforcing structure and capable of being used for temporarily enhancing the structural stability in construction.

A patient support apparatus for supporting a patient in a prone position during a surgical procedure is provided, including an open fixed frame suspended above a floor and a pair of spaced opposed radially sliding joints cooperating with the frame, each joint including a virtual pivot point and an arc of motion spaced from the virtual pivot point, the joints being movable along the arc providing a pivot ship mechanism for a pair of pelvic pads attached to the joints. A base for supporting and suspending a patient support structure above the floor, for supporting a patient during a surgical procedure, the base including a pair of spaced opposed vertical translation subassemblies reversibly attachable to a patient support structure, a cross-bar, and a rotation subassembly having two degrees of rotational freedom; wherein a location of each vertical translation subassembly is substantially constant during operation of the patient support structure.

The invention relates to the field of manipulators, in particular to a planar articulated manipulator. It includes: a vacuum chamber composed of a sealing plate and a vacuum cover, an actuator inside the vacuum chamber placed on the sealing plate, and a driving mechanism outside the vacuum chamber; the actuator includes first forearms connected in sequence , the second forearm, the third forearm and the fourth forearm, and also includes an arm connecting base and a telescopic arm with a first clamp installed at one end, the arm connecting base is connected with the first and third forearms, telescopic The arm is fixed on the arm connection base through a spring thimble installed near the outside of the arm connection base; the driving mechanism is used to rotate the telescopic arm in the vacuum cavity by driving the rotation of the second small arm and the fourth small arm , telescopic. The planar articulated manipulator provided by the invention has large transmission distance and high efficiency.

The invention discloses an industrial robot absolute accuracy calibrating method based on IEKF. The method is characterized by comprising the following steps: a parameter error model is built, and a laser tracking system is used for sampling data in a robot terminal position in a Cartesian space to obtain position errors under different coordinates; geometric parameter nominal values are used for building a kinetic model of a robot, and parameter vectors to be identified are built by combining with a vector product method to obtain a parameter Jacobian matrix; and parameter errors in the parameter error model are identified by using an IEKF algorithm, and parameter errors of the robot are obtained through iterative computation. Finally, the parameter errors are used for correcting the geometric parameter nominal values to finish kinematic calibration of the industrial robot so as to realize absolute accuracy calibration of the robot. The robot absolute accuracy calibrating method based on IEKF, provided by the invention, is suitable for any serial joint robot and any plane joint robot.

The invention relates to a wrist joint recurrent movable external fixation bracket. The wrist joint recurrent movable external fixation bracket includes a near-end long bracket and a far-end short bracket, wherein the near-end long bracket comprises a near-end bracket rod and a near-end connection sleeve fixed to one end of the near-end bracket rod; 2 single nail clips which are clamped in slidingfit with the near-end bracket rod are arranged on the near-end bracket rod; the far-end short bracket includes a far-end bracket rod and a far-end connection sleeve fixed to one end of the far-end bracket rod; one double nail clip which is clamped in sliding fit with the far-end bracket rod is arranged on the far-end bracket rod; the near end connection sleeve of the near-end long bracket is connected with a universal ball joint; the far-end connection sleeve of the far-end short bracket is connected with a ball plane joint; and the near-end long bracket and the far-end short bracket are coordinatively connected through the universal ball joint and the ball plane joint. The wrist joint recurrent movable external fixation bracket enters dynamic fixing by loosening a second cam shaft and then unscrewing a hand wheel: the ball plane joint can perform fan sector movement within the controlled angle range, so that the wrist joint can perform the extension and flexion function exercise frequently.