52results about How to "Increased rotational freedom" patented technology

The invention discloses a welding seam tracking control device and method based on a cross laser device. The welding seam tracking control device is characterized by comprising a four-freedom-degree robot, a visual sensor and an integrated control cabinet; the four-freedom-degree robot comprises a working platform, a moving module, a Y-axis stepping motor, a bracket and a welding gun; the Y-axis stepping motor is fixed to a Z-axis slide table of a Z-axial moving module body, and a rotary shaft of the Y-axis stepping motor is parallel to the moving direction of a Y-axial moving module body; the bracket is used for fixing the visual sensor and the welding gun; the visual sensor comprises a camera and the cross laser device; and cross laser rays emitted by the cross laser device are irradiated on a to-be-welded workpiece and shot by the camera. The welding seam tracking control method is used for conducting vision measurement on fillet welding seams, three-dimensional position information of the welding seams, the inclined angle of the plane of the welded workpiece and the directions of the welding seams can be obtained accurately, and the welding gun can conduct high-precision self-adapting tracking control over the welding seams.

The invention discloses a high-precision laminating machine which is characterized by comprising a base and a vertical rail, wherein a transverse rail is arranged on the base, a lower platform is movably cooperated with the transverse rail, the top of the lower platform is provided with a lower laminating surface, the vertical rail is vertically fixed above the base, a sliding support is upward and downward slidingly cooperated with the vertical rail, an upper platform is rotatably cooperated with a transverse shaft of the sliding support, and the lower end of the upper platform is provided with an upper laminating surface. The sliding support is positioned at a high place of the vertical rail, and a to-be-laminated part is vac-sorbed on the upper laminating surface; then another to-be-laminated part is vac-sorbed on the lower laminating surface; the upper platform is rotated around a transverse axis thereof until the upper laminating surface is parallel to the lower laminating surface, then the sliding support falls along the vertical rail and applies a pressure until the two to-be-laminated parts are tightly bonded together through optical cement carried by the two parts, and therefore, a laminated product is obtained. According to a scheme in the invention, when the upper platform presses downwardly, the upper platform has uniform pressure relative to the lower platform, the downward pressing stroke of the upper platform is individually controlled by the sliding support, so high precision is obtained, and the laminating machine can rapidly adapt to laminated products with different thicknesses.

A Conical reflecting, concentrating, two-axis tracking solar energy collector is disclosed.

An inverted multi-segmented conical reflecting surface concentrates and focuses solar energy at very high concentrations onto a very thermodynamically efficient receiver tube or absorber pipe assembly.

The receiver tube consists of a cylindrical array of HCPV solar cells mounted onto a polygonal extruded Aluminum tube. These HCPV solar cells are 36% efficient and can receive solar concentrations as high as 1000 SUNS. A heat transfer fluid is pumped through the receiver tube in contact with the interior surface of the Aluminum tube to remove the heat from the HCPV solar cells. In cooling the HCPV cells, the heat transfer fluid is heated. The resulting thermal energy, ⅔ of the available solar energy, can be utilized for ammonia absorption air conditioning and home heating, about ⅔-¾ of a home's energy requirement.

The absorber pipe assembly encloses a black surfaced absorber pipe within a larger diameter transparent glass pipe and a heat transfer fluid is pumped through the annulus in direct contact with the black absorbing surface. A very efficient transfer of heat is effected.

This conical concentrator and receiver combination is caused to track the by three hydraulic cylinders.

The concentrating solar energy collector disclose is intended to and is capable of economically providing for all of the energy needs of a home or building.

A two-foot walking robot with 7-freedom legs and dual-spherical hip joint features that its hip joint with dual-spherical structure has 3 freedoms, its knee joint has one freedom, and its ankle joint has 3 freedoms. As a result, said robot has the waist bending function and said ankle joint has a rotary freedom.

A differential for use in a vehicle drive train including a gear case that is operatively supported in driven relationship with respect to the drive train and a spider mounted for rotation with the gear case. The spider includes at least one pair of cross pins. Each cross pin defines a longitudinal axis and an outer surface that is convex about an axis extending perpendicular to the longitudinal axis of the cross pin. Pinion gears include a central bore where the cross pins are received in the central bore of the pinion gears such that the gears are mounted for rotation with the spider and in meshing relationship with side gears with an increased degree of rotational freedom of the pinion gears about the convex surface of the cross pin. Alternatively, the central bore of the cross pin may have an inner surface that is convex along the axis of the central bore.

The invention discloses a multi-freedom-degree and rotatable VR seat which comprises a multi-freedom-degree motion platform and a seat body installed on the multi-freedom-degree motion platform. The multi-freedom-degree motion platform comprises a movable platform, a rotatable platform, telescopic action cylinders and a fixed platform, wherein the seat body is fixed to the movable platform, the movable platform and the rotatable platform are connected through multiple telescopic action cylinders, two ends of each telescopic action cylinder are hinged to the movable platform and the rotatable platform respectively, the rotatable platform is installed on the fixed platform, and thus the movable platform and the seat body are driven to perform multi-freedom-degree motions through telescoping motions of the telescopic action cylinders and rotation of the rotatable platform. Wire passing slide rings are coaxially installed at the center of the rotatable platform. The multi-freedom-degree and rotatable VR seat can flexibly achieve forward and backward bending, left-right swing and other actions and meanwhile can achieve rotation, and the experience effect of a player is improved.

A synchronous unfolding and folding apparatus comprises two corresponding folding members and a multi-joint rotating shaft structure arranged between the two corresponding folding members, two ends of the multi-joint rotating shaft structure synchronously unfold, the multi-joint rotating shaft structure can be formed by an active joint group and a following joint group, the active joint group is provided with two joint sheets facing each other and an intermediate linking sheet connected between the two joint sheets, and two ends of the active joint group are combined with the two corresponding folding members respectively; and anyone of the joint sheets facing each other of the active joint group can freely rotate around a plurality of rotating centers, so smooth synchronous unfolding and folding of two ends can be formed in order to realize accurate corresponding unfolding and folding operation effects.

The invention discloses an arm stretching and bending mechanism for an industrial robot, and belongs to the technical field of robot arms. The arm stretching and bending mechanism for the industrial robot comprises a base. A workbench is connected to the top of the base. A fixing plate is connected to the top of the workbench. A conveying rack is slidably connected to the outer wall of the workbench. A first gear is connected to the outer wall of the conveying rack in an engaged mode. A first connecting rod is connected to the outer wall of the first gear. Second connecting rods are rotatablyconnected to the two ends of the first connecting rod. A third connecting rod is connected to the end, away from the first connecting rod, of each second connecting rod. A second gear is connected tothe joint of each third connecting rod and the corresponding second connecting rod. A third gear is connected to the outer wall of each second gear in an engaged mode. A fourth connecting rod is connected to the outer wall of each third gear. Fifth connecting rods are connected to the two ends of the fourth connecting rods. Sixth connecting rods are connected to the ends, away from the fourth connecting rods, of the two fifth connecting rods. Clamping mechanisms are connected to the outer walls of the sixth connecting rods. According to the arm stretching and bending mechanism for the industrial robot, the flexibility of robot arms can be improved through the rotation of the connecting rods.

The invention discloses an insert-assembling type multi-section rotating shaft structure, which includes driving joint groups and servo joint groups, wherein at least two relative joint sheets and a middle linkage sheet group connected between the relative joint sheets are arranged on each driving joint group; each servo joint group is arranged between the two relative joint sheets, and comprises at least two servo sheets used for presetting cohesion linkage of synchronous initiation parts, at the mutually relative inward ends; the inward ends of the relative joint sheets are aligned with the outward ends of the servo sheets, and the outward ends of the two joint sheets form an insertion end; the outward end of each middle linkage sheet of the middle linkage sheet group is aligned with the inward end of each servo sheet of the servo sheet group, and the various parts are combined with each other through shaft pins; and the driving joint groups and the servo joint groups are arranged in a combination manner and are connected in series with the shaft pins, so that each relative joint sheet of the driving joint groups can perform free rotation around multiple rotation centers, and a smooth rotating shaft structure with two opening and closing ends is formed.

The invention discloses a track vehicle which comprises a vehicle body, a front bogie, a back bogie, a driving device and a controller, wherein the front bogie is arranged at the lower part of the vehicle body; a left front wheel is arranged on the left side of the front bogie, a right front wheel is arranged on the right side of the front bogie, and the two front wheels can rotate independently; the back bogie is arranged at the lower part of the vehicle body; a left back wheel is arranged on the left side of the back bogie, a right back wheel is arranged on the right side of the back bogie, and the two back wheels can rotate independently; the driving device is connected with the left back wheel and the right back wheel respectively; the controller is connected with the driving device and used for controlling the output rotating speed of the driving device, so as to enable the rotating speed difference between the left back wheel and the right back wheel when the back bogie passes by a certain position to be identical with the rotating speed difference between the left front wheel and the right front wheel when the front bogie passes by the same position. According to the track vehicle provided by the embodiment of the invention, the decoupling to the wheels in the rotation direction is realized, the abrasion loss is reduced, and meanwhile, the identical rotating speed differences between the front wheels and between the back wheels are realized through controlling the output rotating speed of the driving device, so that the curve negotiating performance of the track vehicle is greatly improved.

The invention discloses an antibacterial powder coating which is prepared from the following raw materials in parts by weight: 25-35 parts of an epoxy resin, 25-35 parts of a polyester resin, 0.8-1.5parts of a flatting agent, 0.8-1.5 parts of a smooth degassing agent, 15.5-49 parts of pigments and fillers and 0.5-1.5 parts of an antibacterial agent. The film formed after spray curing has excellent antibacterial property, the antibacterial ability is long-term and lasting, the antibacterial active group thiazolone has an excellent effect of inhibiting and killing common bacteria, fungi, algaeand the like, and due to synergistic antibacterial and bacteriostatic abilities of quaternary ammonium salts, the prepared powder coating is capable of resisting many bacteria and fungi. The antibacterial agent B contains alcoholic hydroxyl groups, so that the compatibility and adhesiveness to other components of the coating are increased, and dispersion of the antibacterial agent in the powder coating is facilitated.

The invention relates to a preparation method of a high- water- resistance gypsum-based thermal insulation composite board and belongs to the technical field of building materials. A high-water-resistance gypsum thermal insulation material is prepared by adding organic silicon modified paraffin emulsion, and the molecular main chain of organic silicon contains Si groups or a silicon-containing compound with certain reaction activity, so that a cross-linked network film structure can be formed in gypsum and can be attached to an internal pore wall to fill the internal defects of the gypsum thermal insulation board; due to the fact that the silicon-containing molecular chain is high in rotational freedom degree and low in surface energy, an organosilicon waterproofing agent is endowed with good hydrophobic performance, and the water absorption rate of the board can be obviously reduced; after paraffin is prepared into the emulsion, the paraffin can be uniformly adsorbed on a plate, so that the waterproof performance is improved.

The invention relates to a chassis mechanism of a variable diameter adsorbent wall climbing robot and a working method. The chassis mechanism of the variable diameter adsorbent wall climbing robot includes a tool mounting platform, wherein an adsorption mechanism framework is installed on both sides of the tool mounting platform through rotary joints. A power mechanism, a power transmission mechanism and a chain drive mechanism are installed on the adsorption mechanism framework, and the power mechanism drives the chain transmission mechanism to work through the power transmission mechanism. The chain transmission mechanism is provided with a plurality of rotating adsorption units, and the rotating adsorption units include rotating assemblies fixed on the chain transmission mechanism and magnet assemblies fixed on the rotating assemblies. The adaptive adjustable adsorption of the outer wall of a wind power tower can be achieved, the adsorption is stable, and the falling phenomenon of instability is avoided.

The invention relates to the technical field of robots, and discloses a mechanical arm clamp capable of automatically adjusting object shapes. The mechanical arm clamp comprises a seat body and a clamping mechanism. One end of the seat body is connected with the tail end of a mechanical arm of an external robot or other clamping machines, and the other end of the seat body is fixedly connected with the clamping mechanism. The clamping mechanism comprises a sliding adjusting mechanism, clamping plates and telescopic components. The number of the clamping plates is two, the clamping plates are oppositely arranged, multiple mounting holes are formed in the clamping plates and used for mounting of the telescopic components, and the telescopic components comprise supporting columns, springs andsuction cups. During work, the upper clamping plate and the lower clamping plate are driven to move linearly through the sliding adjusting mechanism, due to the shapes of clamped objects are different, force borne by springs of clamping points are different, and the clamp keeps large-area contact clamping to the different clamped objects through spring deformation and supporting column stretchingand retracting, and therefore the machining reliability is guaranteed. In addition, the seat body is further provided with a first motor, a rotational degree of freedom is added to the clamping mechanism, and clamping is more flexible and convenient.

The invention relates to a threaded rod of an injection molding machine with a reversely connected threaded rod head, which mainly comprises a threaded rod body, a thrust ring, a check ring and a threaded rod head. The front end of the threaded rod body is provided with a smooth cylinder with a small diameter and a small stud in order, and the stud is matched with an internal threaded hole in the threaded rod head to connect the stud with the threaded rod head. Therefore, the threaded rod has high linearity and concentricity. The thrust ring is sheathed on the smooth cylinder with a small diameter, and the front end surface and the rear end surface of the thrust ring are respectively abutted with the rear end surface of the threaded rod head and the front end surface of the threaded rod. When the stud at the front end of the thread rod is screwed into the internal threaded hole in the threaded rod head by a certain depth, the thrust ring is axially fixed. The thrust ring has different outside diameters according to different requirements for materials and processes so as to generate different backpressure. The annular check ring is installed on a cylinder of the threaded rod head between the thrust ring and the threaded rod head, can rotate freely and can move back and forth. When the rear side surface of the check ring is not fully abutted with the front diagonal side surface of the thrust ring, fusant plasticized in a threaded groove is pressed into a storage section through the clearance, another clearance formed between the cylinder of the threaded rod head and a charging barrel as well as a threaded rod head groove. However, when the rear side surface of the check ring is abutted with the front diagonal side surface of the thrust ring, the fusant in the storage section is prevented from back flowing to the threaded groove, thus playing a role of sealing, and the threaded rod can be injected.

The invention provides a power generation method and a system equipped with energy storage and energy release accommodation mechanism. By using an energy storage and energy release accommodation system arranged in the system, the generator set at an end of the system can immediately supplement energy from an energy storage unit after providing electric energy to a load, so that the output energy will not drop suddenly, while still stably maintaining both the rated energy output and the system operation.

The invention provides a preparation method of a fibrilia antibacterial functional material. The method comprises the following steps of soaking fibrilia in a tannic acid aqueous solution for a first reaction to obtain pre-modified fibrilia; and carrying out a second reaction on the pre-modified fibrilia, metal ions and organic amine to obtain the fibrilia antibacterial functional material. According to the invention, firstly, tannic acid is grafted on the surface of the fibrilia through hydrogen-bond interaction; after primary grafting of the tannic acid is completed, an aqueous solution of the metal ions and the organic amine is dropwise added under the ultrasonic action for further crosslinking, so that chelating bonds are formed between free phenolic hydroxyl groups of the tannic acid and the metal ions as well as between the metal ions and the organic amine, and the tannic acid is more firmly and uniformly grafted on the surface of the fibrilia; and due to the introduction of the organic amine, the distance between tannic acid and metal ion complexes is increased, uniform and firm grafting on the surface of the fibrilia is realized, and the application environment adaptability of the tannic acid grafted fibrilia is enhanced.

The invention relates to a stamping multi-station transport system. The stamping multi-station transport system comprises multiple end pickers and manipulators, wherein one end of each end picker is used for guiding to a stamping part, each end picker comprises a first group of spherical hinged supports and a second group of spherical hinged supports, each group in the first group of the spherical hinged supports and the second group of the spherical hinged supports comprises a first spherical hinged support and a second spherical hinged support, the first spherical hinged support in each group is inserted into the second hinged support in the same group, the first spherical hinged support in each group can rotate relatively to the second hinged support in the same group, the number of the manipulators is two, each manipulator comprises an mechanical arm and an installation seat, the installation seats can be respectively arranged on the corresponding mechanical arms in slidable mode, and each installation seat is connected with a second end of each corresponding end picker. The stamping multi-station transport system can significantly improve analysis and planning efficiency of the end pickers, and early analysis and planning results can be directly used in late field assembly, and therefore installation and debugging efficiency is greatly improved.

The invention relates to the field of ocean engineering equipment, in particular to a damping mechanism and a buffer cylinder type flexible connecting device, wherein the damping mechanism comprises across hinge assembly, wherein the cross hinge assembly comprises a near-center hinge support, a cross shaft and a far-center hinge support, which are sequentially connected in a first direction; anda spherical hinge assembly, wherein the spherical hinge assembly comprises a ball head connecting rod and a spherical hinge support with a spherical cavity, a connecting rod part of the ball head connecting rod is fixedly connected with the far-center hinge support, and a ball head part of the ball head connecting rod is hinged in the spherical cavity. According to the invention, the spherical hinge and the cross shaft hinge are both adopted; compared with a prior rigid fixed bracket, the mechanism increases the degree of freedom of rotation, eliminates the alternating bending moment caused byrotation during fixed rigid connection, improves the self-adaptive capacity for random load and impact, greatly reduces the fatigue damage risk and ensures the effectiveness of a vertical pipe.