41results about How to "High rotational freedom" patented technology

The invention discloses a five-axis linkage laser 3D (Three Dimensional) metal printer. The five-axis linkage laser 3D metal printer comprises a base, wherein the base is provided with a Y-axis sliding guide rail, a Y-axis ball screw and a portal frame; a worktable is arranged on the Y-axis sliding guide rail and the Y-axis ball screw; a Z-axis sliding guide rail and a Z-axis ball screw are mounted on the portal frame; Z-axis sliding blocks are mounted on the Z-axis sliding guide rail and the Z-axis ball screw; an X-axis ball screw and an X-axis sliding guide rail are mounted on the Z-axis sliding blocks; an X-axis sliding block is mounted on the X-axis ball screw and the X-axis sliding guide rail; the X-axis sliding block is provided with a Z-axis rotary motor through a fixing device; theZ-axis rotary motor is connected with a Y-directional rotary motor through a connecting device II; the Y-directional rotary motor is connected with a laser head through a connecting device I. According to the five-axis linkage laser 3D metal printer disclosed by the invention, a common three-axis feeding printer can be used for rapidly printing metal parts and repairing of damaged parts also canbe finished.

The invention discloses a massage robot actuating mechanism, and relates to the field of medical machines. A main mechanism is formed by serially connecting two translational guide rails with a five degree-of-freedom mechanical arm, a two degree-of-freedom parallel mechanism comprising a translational mechanism and a rotary mechanism, and a crank rocker mechanism. The massage robot actuating mechanism comprises a sliding pair A (16) of the two translational guide rails, a sliding pair B (17) of the two translational guide rails, a fixed platform (14), a moving platform (9), the parallel mechanism and a planer rocker mechanism. The two translational guide rails are matched with the two degree-of-freedom parallel mechanism comprising the translational mechanism and the rotary mechanism and the crank rocker mechanism to complete actions such as rolling, pressing, rubbing, vibrating and patting in massage manipulation together. The mechanism has the advantages of simple and compact structure, high rigidity, flexible rotation, good dynamic performance, large pivot angle of the moving platform, low degree of freedom, simple kinematics analysis and easy real-time control.

The invention relates to a cutter head structure of a detachable electric shaver, comprising a plurality of cutter blade assemblies capable of rotatably cutting, and the cutter blade assemblies are in joggled connection with a central transmission gearwheel on a main support by respective transmission unit. The cutter head structure is characterized in that the main support is sleeved on the lower cover of the main support, whereas the lower cover of the main support is connected with a cutter blade connecting seat by spherical coordination; and an elastic element is supported between the main support and the cutter blade connecting seat. The cutter head structure has big rotational degree of freedom, simple and practical structure and easy manufacture.

The invention provides a spraying robot mechanical arm with five freedom degrees. A base box is included, and an upper end port of the base box is closed for covering through a box cover bearing pedestal; a rotating disk is rotationally supported on the middle portion of the box cover bearing pedestal; the base box is provided with a driving motor and a speed reducer; the output end of the drivingmotor is connected with the input end of the speed reducer; the output end of the speed reducer is connected with the rotating disk; a lower arm joint is vertically fixed to the upper end face of therotating disk; the upper end of the lower arm joint is hinged to the lower end of a middle arm joint; an upper arm joint used for installing a spraying device is hinged to the upper end of the middlearm joint; a first hydraulic cylinder is hinged to one side of the lower portion of the lower arm joint; the top end of a piston rod of the first hydraulic cylinder is hinged to one side of the middle portion of the middle arm joint; a second hydraulic cylinder is hinged to the other side of the middle portion of the middle arm joint; and the top end of a piston rod of the second hydraulic cylinder is hinged to the upper arm joint. According to the spraying robot mechanical arm with the five freedom degrees, the rotating disk is driven by a stepping motor, in combination with large-angle rotating formed by the structures of the upper, middle and lower three arm joints, the rotating freedom degree of the mechanical arm is improved, rotating of the spraying robot mechanical arm in all directions is flexible, using is flexible and convenient, and the automation degree is high.

The invention discloses a vertical axis wind turbine capable of continuously keeping the effective attack angle of blades. The vertical axis wind turbine comprises an output shaft, a supporting frame, the blades, an attack angle adjusting device and a wind alignment device, wherein the supporting frame is fixedly connected with the output shaft and drives the output shaft to rotate, the blades are installed on the supporting frame through rotation of a rotating shaft and push the supporting frame to drive the output shaft to rotate, the attack angle adjusting device is used for adjusting the attack angle of the blades, and the wind alignment device is used for driving the attack angle adjusting device to rotate to achieve wind alignment. The attack angle adjusting device comprises at least one attack angle adjusting guide rail and at least one attack angle adjusting crank (8), wherein the attack angle adjusting guide rail is installed on the wind alignment device and is in a standard circular shape. The attack angle adjusting guide rail surrounds the axis of the output shaft. The blades are rotationally connected to the supporting frame. One end of the attack angle adjusting crank (8) is fixedly connected with the blades, and the other end of the attack angle adjusting crank (8) is arranged on the attack angle adjusting guide rail in a sliding mode. The vertical axis wind turbine can effectively increase the utilization rate of wind energy and is easy to manufacture, low in cost and convenient to maintain.

The invention discloses a man carrying seat for a boat. The man carrying seat comprises a seat, connecting elements and clamp installing elements, wherein the seat comprises seat legs, the seat legs are vertically arranged under the seat, the height of the front legs of the seat legs is greater than the height of the back legs, the back end of the seat is hinged to the connecting elements, and the connecting element is hinged to the clamp installing element. The man carrying seat has the advantages that the normal and efficient cabin entrance and exit of workers can be realized, the work efficiency is improved, and the safety of the workers is ensured.

The invention discloses a man carrying seat for a boat. The man carrying seat comprises a seat, connecting elements and clamp installing elements, wherein the seat comprises seat legs, the seat legs are vertically arranged under the seat, the height of the front legs of the seat legs is greater than the height of the back legs, the back end of the seat is hinged to the connecting elements, and the connecting element is hinged to the clamp installing element. The man carrying seat has the advantages that the normal and efficient cabin entrance and exit of workers can be realized, the work efficiency is improved, and the safety of the workers is ensured.

The invention provides a milling method and indexing clamp for cooling grooves on the inner wall of a large-diameter water-cooled jacket. The indexing clamp comprises a driving roller carrier body and a driven roller carrier body, and the two roller carrier bodies are symmetrically mounted according to the diameter of a large-diameter water-cooled jacket workpiece so as to support and clamp the workpiece; and the roller frame bodies comprise frame bodies, pressing bolts, connecting bolts, tensioning rods, bearing upper covers, bearing end covers, bearings, rollers, pointers, cushion blocks, fixing bolts and positioning bolts. A common three-axis vertical milling machine can be used for cooperating with the indexing clamp to machine the cooling grooves on the inner wall of the large-diameter water-cooled jacket, the indexing clamp can stably clamp rotary workpieces of different specifications and can drive the workpieces to rotate in the machining process, a Y-axis rotation freedom degree is increased, the pointers on the clamp are aligned with workpiece scale marks, the machining precision can be guaranteed, and the manufacturing cost can be reduced.

The invention discloses a cloth cotton pendulum machine and a uniformity compensation method thereof. The cloth cotton pendulum machine includes a frame, a pendulum body, a rocker fork, a rocker rod, a crank and a driving device; the pendulum body is mounted on the frame through a bearing structure and can swing back and forth; one end of the rocker fork passes through The bearing is connected with the pendulum body, and the other end is connected with one end of the rocker arm through the pin shaft, and the rocker fork and the rocker arm constitute the rocker arm mechanism; the other end of the rocker arm is connected with one end of the crank through a rolling bearing, and the other end of the crank Installed on the rotating shaft of the drive unit. The cloth cotton pendulum machine of the present invention simplifies the eccentric wheel mechanism into a crank structure, reduces the weight of the equipment itself and reduces the processing cost; improves the integrated structure of the rocker arm, and adds a One degree of freedom of rotation enables the two to rotate around the connecting shaft, which can effectively reduce the internal stress of the rocker arm structure; the method for compensating the uniformity of the cotton cloth pendulum machine of the present invention improves the uniformity of the pendulum cloth cloth.

The invention discloses a rigid-flexible coupling parallel robot multi-color spraying experimental device and a spraying method, including a rigid support, a pull-type drive assembly, an end effector, a rigid spring telescopic rod assembly, a 360° rotary joint assembly, and a multi-color rectangular spray gun Components and electromechanical control system parts; the rigid support provides overall support for the robot; the pull-type drive assembly provides driving force for the end effector, and the upper end of the end effector is connected to the top cross universal joint of the rigid support through a rigid spring telescopic rod assembly. The rigid spring telescopic rod assembly realizes the passive tensioning of the end effector through the spring and the telescopic rod. The 360° swivel joint assembly adds a rotational degree of freedom to the end effector. One-color rectangular spray gun assembly, the spray gun assembly can carry out multi-color spraying and prevent paint from overspraying. The invention can complete the automatic spraying of multi-color patterns on the surface of three-dimensional workpieces, and monitor the spraying quality in real time.

The invention discloses a bionic flexible spine bearing system. The system comprises an elastic rope, two wire sheaths and a vertebral body support set, wherein the vertebral body support set comprises a shoulder vertebral body support, a first set of middle-section vertebral body supports, a chest vertebral body support, a second set of middle-section vertebral body supports and a waist connecting support which are sequentially connected in a sitting and sleeving mode from top to bottom, the elastic rope penetrates through the center of the vertebral body support set so as to be tightly connected with each vertebral body support in the vertebral body support set, and the two wire sheaths penetrate through the two sides of the center of the vertebral body support set respectively so as tocontrol the rotating rigidity of each vertebral body support in the vertebral body support set. According to the bionic flexible spine bearing system, by arranging the elastic rope and the wire sheaths on the two sides, all the vertebral body supports are connected, the spine structure is simulated, the rotation freedom degree of the back and the waist is increased, the movement flexibility is kept, meanwhile, loads are effectively dispersed and transmitted to the hips, and the shoulder pressure is reduced.

The invention relates to a cutting-shaped unmanned aerial vehicle frame with a stable arm, one end of the upper swing arm and the lower swing arm is rotatably connected to the fuselage, and the other end of the upper swing arm and the lower swing arm is rotatably connected to the motor frame; The middle part of the upper swing arm is provided with a strip-shaped swing groove A, and the middle part of the lower swing arm is provided with a strip-shaped swing groove B. An elastic pull rod is connected between the upper swing arm and the lower swing arm, and one end of the elastic pull rod is fixed to the The front end of the swing slot A and the other end of the elastic pull rod are fixed to the rear end of the swing slot B; a set of transmission swing arms are rotatably connected to the top of the motor frame, and the transmission swing arms include a swing arm shell and a transmission assembly arranged in the swing arm shell , the power input wheel and the power output wheel are connected by a belt drive; a cantilever is also connected to the swing arm shell, a feedback motor is arranged in the middle of the fuselage, a feedback wheel is fixed on the output shaft of the feedback motor, and a ring is formed on the feedback wheel. The array is provided with several feedback swing arms, and a push rod is connected between the feedback swing arms and the cantilever.

The invention discloses a massage robot actuating mechanism, and relates to the field of medical machines. A main mechanism is formed by serially connecting two translational guide rails with a five degree-of-freedom mechanical arm, a two degree-of-freedom parallel mechanism comprising a translational mechanism and a rotary mechanism, and a crank rocker mechanism. The massage robot actuating mechanism comprises a sliding pair A (16) of the two translational guide rails, a sliding pair B (17) of the two translational guide rails, a fixed platform (14), a moving platform (9), the parallel mechanism and a planer rocker mechanism. The two translational guide rails are matched with the two degree-of-freedom parallel mechanism comprising the translational mechanism and the rotary mechanism and the crank rocker mechanism to complete actions such as rolling, pressing, rubbing, vibrating and patting in massage manipulation together. The mechanism has the advantages of simple and compact structure, high rigidity, flexible rotation, good dynamic performance, large pivot angle of the moving platform, low degree of freedom, simple kinematics analysis and easy real-time control.