357results about How to "Improve movement stability" patented technology

The invention relates to a complex environment multi-sensor intelligent detection robot, which includes a triangular crawler intelligent autonomous mobile car, a 360-degree three-dimensional rotating three-dimensional laser scanner, a wireless communication module, an image acquisition device, an infrared detector and an environment detection sensor module, 360-degree three-dimensional The rotating three-dimensional laser scanner, wireless communication module, image acquisition equipment, infrared detector and environmental detection sensor module are all arranged on the triangular crawler intelligent autonomous mobile car, and the 360-degree three-dimensional rotating three-dimensional laser scanner is connected to the intelligent controller. The environmental information collected by the image acquisition equipment, infrared detector and environmental detection sensor module is transmitted to the remote control center through the wireless communication module, and is used to complete life search, detection and exploration tasks in complex environments or places that are inaccessible to humans. Compared with the prior art, the present invention has the advantages of precise positioning and high reliability.

The invention provides a bionic robot fish provided with a rising module and a tail module, relating to the bionic robot fish used underwater and aiming at solving the defects of the existing bionic robot fishes that the rising speed is low; rising characteristics are indistinct and adjusting the tail fin movement-diameter is inconvenient, etc. The other end of a screw (11) is fixedly connected with a piston (4) through a screw end closure (3), the piston (4) is arranged in a cylinder (1), and one end of a cylinder end closure (6) is fixedly connected with the cylinder (1); a straight-spur cone gearwheel (38) is arranged on a central shaft (43) and two ends of a central shaft (43) are rotationally connected with two sides of a box body (39), and two sets of sliding mechanism assemblies (84) are respectively arranged on a first disk (22) and a second disk (44) through a first eccentric shaft (25) and a second eccentric shaft (41). The bionic robot fish provided by the invention has a better rising characteristic and better bionic effect and can easily realize the adjusting to the tail fin movement-diameter of the robot fish so as to lead the swaying of the fish body to be rare and the moving stability to be better.

This invention relates to fiber-reinforced shape memory composite and its application. This invention solves the problems of low hardness and strength, poor reconversion performance, and poor motion stability band reliability faced by present shape memory polymer materials. The fiber-reinforced shape memory composite is composed of: shape memory polymer material 20-95 vol. %, and reinforcing fiber material 5-80 vol. %. The fiber-reinforced shape memory composite has such advantages as high reconversion strain, strong force output during reconversion, high motion stability and reliability, low density, high hardness, and high strength. The method has such advantages as simple process and easy operation. The fiber-reinforced shape memory composite can be used in such industries as toys, medicine, architecture, traffic, aviation, aerospace, etc.

The invention discloses a second-level coal mine rescue robot system. The system comprises a detection robot and a carrying robot, wherein the detection robot detects related environmental information at a place where a coal mine accident occurs in real time; the carrying robot transports the detection robot to a place nearby the place where the coal mine accident occurs from the ground along the existing transportation channel which is formed in a coal mine underground tunnel and synchronously detects related environmental information in the coal mine underground tunnel in real time in the transportation process; and the carrying robot is a wheel robot and the detection robot is a crawler robot. The system has a reasonable design, high intelligentization degree and reliable working performance and is convenient to use and operate; and the carrying robot and the detection robot second-level robot system effectively solves the problems that: the underground conditions of a coal mine are severe, the place where the accident occurs is far away from a well head, the crawler rescue robot has a limited moving range and cannot effectively monitor the environmental information of the place where the accident occurs, and the like.

The guide type control valve of the invention comprises a main valve (5) and an electric pilot valve (7), wherein the main valve comprises the following components: a valve body (10) which is formed with a valve chamber (13) for leading in and leading out the fluid; and a main valve core (20) which is sliding-freely inserted in the valve body (10) and does opening or closing to the main valve opening (14) arranged on the valve body (10) and comprises a large diameter part (20A) and a minor diameter part (20B) and the cross section of which is shaped like a reverse Chinese character tu, and the electric pilot valve comprises the following components: a separating component (32) which is installed that the component closes the top opening of the valve body (10) and a backpressure chamber (33) is separated between the separating component and the main valve core (20); and a pilot valve core (35) which does opening and closing to the pilot valve opening (27) arranged on the main valve core (20), the electric pilot valve is arranged with a voltage equalizing channel (24) which communicates the valve chamber (13) with the backpressure chamber (33), and exerts the force facing to the valve-opening direction to the main valve core (20) with the compressed spiral spring (25), besides the main valve core (20) is caused to move to the valve-opening direction following the moving of the pilot valve core (35) to the valve-opening direction. Otherwise, the outer diameter Da of the large diameter part (20A) of the main valve core (20) is 1.5 to 3 times of the diameter Db of the main valve opening (14). The present invention can provide a guide type control valve which can optionally and subtly regulate the opening degree of the valve and can effectively avoid the generating of the noise, and can get an excellent response property and action stability as well as control property , etc.

Provided is a shock absorber, comprising an oil storage cylinder (13), a working cylinder (14), a piston rod (6), a guiding and sealing assembly used to guide the movement of the piston rod (6), and an expansion and circulation valve assembly and a compression and compensation valve assembly provided on a piston (16). The guiding and sealing assembly comprises a guide seat (27, 29) and an oil seal (34) located at the upper end of the guide seat. The face of the upper end of the guide seat (27, 29) is formed with an oil storage groove, and the oil storage groove has an oil-air separation contact surface (35). An elastic separation lip (36) is formed on the oil seal (34) and the elastic separation lip (36) is in airtight contact with the oil-air separation contact surface (35) such that the oil storage groove is separated into an outside part and an inside part. Moreover, further provided are a vehicle suspension system and a vehicle comprising the shock absorber. The piston rod of the shock absorber has good movement stability, the friction between the piston and the inner wall of the working cylinder is low, and the shock absorber has a long service life and has significantly improved dampening effects.

The invention provides a deformable and reconfigurable spherical rescue robot. The deformable and reconfigurable spherical rescue robot mainly comprises a sphere and wheel interconversion mechanism, a butt joint and reconfiguration mechanism and a gravity center adjustment mechanism. Through a deformation mechanism and the butt joint and reconfiguration mechanism, interconversion of a sphere form, a double-wheel form and a multiple-wheel form can be realized, and the robot can move flexibly in each form; in the sphere form, electronic components of the robot are all packaged inside a spherical shell, the self protection ability is good, and erosion of dust and harmful gas can be effectively prevented on a rescue site; and two robots in the double-wheel form can be reconfigured to form a robot of the multiple-wheel form in a butt joint mode, and therefore the driving force and the stability of the robot can be improved, the obstacle crossing ability of the spherical robot on the rescue site can be improved, and the ability of the spherical robot to adapt different terrains can be improved.

The invention discloses a driving device of a magic cube solving robot and belongs to the technical field of robots. The driving device comprises a table body, a z-direction clamping mechanism, a z-direction rotating mechanism, an x-direction rotating mechanism, an eccentric clamp, an x-direction reciprocating moving mechanism and a control device. The z-direction clamping mechanism is used for clamping two central blocks on the opposite faces of a magic cube body. The z-direction rotating mechanism is axially connected with the z-direction clamping mechanism. The x-direction rotating mechanism controls rotation of the corresponding faces on the magic cube body through the eccentric clamp. The eccentric clamp cuts into the corresponding faces on the magic cube body by two thirds. The x-direction reciprocating moving mechanism is used for controlling the x-direction rotating mechanism and the eccentric clamp to move together in the x-axis direction in a reciprocating mode. The control device is used for controlling the z-direction rotating mechanism, the x-direction rotating mechanism and the x-direction reciprocating moving mechanism to execute corresponding actions. The driving device enables the magic cube solving robot to have the advantages of being simple in structure, low in cost, little in occupied software and hardware resource, easy to manufacture, produce, apply and popularize and the like, and the driving device is high in action stability and high in recovering efficiency of magic cube solving.

The invention relates to a controllable mechanism type palletizing robot mechanism, which comprises a rotary base, a machine frame, a motor, an arm and an arm lifting mechanism, wherein the rotary base is a cylinder, the machine frame is a square horizontal plate, the axial line of the cylinder is vertical to the horizontal plate, the controllable motor is fixed on the machine frame, the arm comprises a first frame connecting rod and a first connecting rod, the arm lifting mechanism is a hinge four-rod mechanism and comprises a second connecting rod, a third connecting rod, a fourth connecting rod and a second frame connecting rod, all rod elements are connected through smooth cylinder hinges, both ends of the fourth connecting rod are respectively connected with the middle parts of the second connecting rod and the third connecting rod, the axial lines of all frame connecting rods and the connecting rods are positioned in the same plane, a connecting part of the first connecting rod and the second connecting rod is an output end, the motor is controlled through programming computer control program, the two frame connecting rods rotate around a motor shaft and is matched with the rotation movement of the rotary base, the movement track can be flexibly regulated according to the environment change, and various palletizing actions of the output end in the work space is preciselyrealized.

The invention provides an intelligent material driven or mechanical driven aircraft with turnable wings, and the aircraft provided by the invention has the advantages of high speed, long voyage, low oil consumption, capability of VTOL (vertical take-of and landing), and capability of hovering. The aircraft comprises an aircraft body, sectional bending turnable wings, electroactive polymer skins, sheet macro-fiber piezoelectric composite material bars, deformed honeycomb fillers, a reversal platform and variable pitch propeller engines, wherein the two variable pitch propeller engines are symmetrically mounted on the rear edges of the wings, the electroactive polymer skins are taken as wing skins, the sheet macro-fiber piezoelectric composite material bars are arranged on the neutral layers of the wings, the spaces between the wing skins and the sheet macro-fiber piezoelectric composite material bars are filled with the deformed honeycomb fillers, and the reversal platform is placed ata rotary center inside the aircraft body. According to the invention, an intelligent driver is utilized as the driving source for wing turning, and the aircraft has the advantages of light weight, simple mechanism, high efficiency and convenience for maintenance, and can be switched rapidly in flying modes of level flaying and hovering through wing turning.

A granular filling shape memory composite material and its production are disclosed. The composite material consists of shape memory polymer matrix-phase material 30-99.5wt% and granular filling-phase material residues. The process is carried out by mixing, dispersing and cast curing. Its advantages include excellent reverse compliance, elastic modulus, outputting force, motion stability and conductivity.

A high-precision AGV driving and steering integrated device comprises a driving module and an independent steering module, wherein the driving module comprises a driving wheel, a traveling motor and aresolver; the integrated device further comprises a transmission module; and the transmission module comprises a support seat and a two-stage deceleration mechanism, wherein the independent steeringmodule is mounted on the support seat. The AGV driving and steering integrated device comprises a driving wheel, a traveling motor and a resolver. The steering reducer is installed vertically parallelto the steering motor, which greatly reduces the height between the independent steering module and the ground, and reduces the requirement of AGV for road smoothness. the invention also provides a high-precision AGV driving and steering integrated control method. The invention provides the high-precision AGV driving and steering integrated device with good flexibility, simplified structure, goodstability and easy control and a control method thereof.

The invention provides a chassis system and a robot. The robot includes the chassis system, the chassis system includes a chassis frame, an electrically controlled module arranged on the chassis frame and at least four driving modules movably connected to the chassis frame, and the driving modules are mutually independent; in any driving module, hub motors are arranged in tyres, thus the tyres are all driving wheels, the tires are independently connected to suspension assemblies with the cushioning and damping function correspondingly, thus the tyres cannot affect mutually on the uneven road surface, the chassis system has the excellent road surface adaptability and motion stability, users can independently control the rotating direction and the rotating speed of the tyres through steering assemblies, it can be ensured that wheel axes of the tyres meet at one point during steering, thus the tyres are not prone to slipping, the sliding friction between the tyres and the ground is greatly reduced, thus the turning radius of the chassis system is small, and then the power consumption of the hub motors is reduced.

The invention discloses an active simple pendulum spherical robot. The active simple pendulum spherical robot comprises a spherical shell and a simple pendulum. The spherical shell is formed by matching a front hemispherical shell body with a rear hemispherical shell body in a screwed mode through screws. In an inner cavity of the spherical shell, the simple pendulum is installed through a front fixing strip and a rear fixing strip. According to the simple pendulum, a long-axis motor and a short-axis motor are coaxially installed in an inside casing, wherein the long-axis motor is directly connected with the front hemispherical shell body and drives the front hemispherical shell body to rotate around the central axis Y of the inner casing, the short-axis motor drives a driving pendulum to rotate around an X axis perpendicular to the central axis Y through a transmission mechanism, and therefore the spherical robot can walk stably in an all-dimensional mode. The active simple pendulum spherical robot is compact in structure, high in rigidity, and smooth and steady in movement.

The invention discloses a weak coupling three horizontal moving parallel robot mechanism and relates to the field of mechanical devices and robot mechanisms. The weak coupling three horizontal moving parallel robot mechanism is composed of a movable platform (8), a fixed platform (1) and two generalized branch chains. The first generalized branch chain is composed of a parallelogram mechanism, a U-shaped rod (5), a connection rod (6) and a connection rod (7), wherein the parallelogram mechanism is composed of a side link (2), a connection rod (3) and a side link (4), and the connection rod (6) and the connection rod (7) are parallel. All the rod pieces are connected through rotation pairs. The second generalized branch chain is composed of a parallelogram mechanism, a connection rod (10) and a connection rod (9), wherein the parallelogram mechanism is composed of a side link (13), a side link (11) and a connection rod (12), the connection rod (10) and the connection rod (9) are parallel, the side link (11) and the side link (13) are respectively connected with the fixed platform (1) through cylinder pairs, and others are connected through rotation pairs. The weak coupling three horizontal moving parallel robot mechanism is simple and compact in structure, good in decoupling performance, easy to control and high in bearing capability.

The invention provides a large-current magnetic latching relay, a movable contact spring of the large-current magnetic latching relay, and a contact assembly of the large-current magnetic latching relay. The large-current magnetic latching relay comprises the contact assembly, an electromagnetic assembly, an armature assembly and a pushing clamp, and under the magnetic attraction action of permanent magnet steel inside the armature assembly, the contact assembly keeps in the normally open state or in the normally closed state; the contact assembly is triggered by pulse electric signals to be switched between the normally open state and the normally closed state, so that the electromagnetic assembly drives the armature assembly to drive the pushing clamp to shift, and the contact assembly is switched between the normally open state and the normally closed state through shifting of the pushing clamp. The movable contact spring of the large-current magnetic latching relay is made of elastic conductive materials and is fixedly provided with at least two movable contacts, the movable contact spring is provided with a fixed first end portion and a second end portion capable of elastically swinging, the movable contacts are fixed to the second end portion and are electrically connected through the movable contact spring, and the second end portion of the movable contact spring is driven by the pushing clamp to swing.

The invention discloses a robot device capable of walking stably. The robot device capable of walking stably consists of a support frame, a motor, a rotation shaft, a plummer block set, a weight set, a cam set and leg parts; the cam set comprises four cams, and every two cams form a group; and each group of the cams which are distributed at 180 degrees are fixedly connected to the rotation shaft. The motor drives the cam set on the rotation shaft to rotate and the four leg parts to move; compared with the prior art, the robot device has the advantages that all the leg parts can move by controlling one motor, so that the problems about the coordination of the motor and the initial state are not involved; therefore, the robot device is convenient to control; and the robot device can quickly move and is high in movement accuracy, high in stability, simple and compact in structure, strong in operability, and suitable for stable and quick movement occasions and moves safely and reliably.

The invention discloses a bionic climbing quadruped robot comprising a leg part foot end mechanism, an auxiliary walking mechanism, front shoulder beams, rear shoulder beams, and a vertebral column, wherein two ends of the vertebral column are fixed in the middles of the front shoulder beams and the rear shoulder beams; the leg part foot end mechanism comprises front legs and rear legs; each of the front legs and the rear legs comprises a shank, a thigh and a foot end mechanism; the upper ends of the thighs are connected with the front shoulder beams and the rear shoulder beams by hip joints; the lower ends of the thighs and the upper ends of the corresponding shanks are hinged; the shanks are connected with the corresponding foot end mechanisms; each foot end mechanism comprises a four-connection-rod mechanism together formed by that three foot end rods are hinged on the tail end of the corresponding shank in sequence; upper end hinged points of the four-connection-rod mechanisms and the corresponding ends of the shanks are hinged with the corresponding ends of second hydraulic cylinders; the other ends of the second hydraulic cylinders are hinged with the middle-up parts of the shanks; the auxiliary walking mechanism comprises ground touching rods; the upper ends of the ground touching rods are hinged with the bottoms of the front shoulder beams; the bottoms of the front shoulder beams are fixedly provided with supporting plates which are in cantilever shapes; suspended end bottoms of the supporting plates are vertically provided with baffles; and the baffles and the ground touching rods are connected by first hydraulic cylinders.

The invention relates to a radar communication antenna capable of accurately adjusting signal receiving height and orientation, comprising a base, a base frame is welded on the base, and a base cover is welded on the top of the base frame; the base frame is provided with a guide groove in a spiral structure, the base frame The outer wall is equipped with a support sheet in a spiral structure, and a guide chute in a spiral structure is arranged on the support sheet; a ring-shaped guide mechanism is installed at the lower end of the base cover, and a rotating gear is installed at the lower end of the ring-shaped guide mechanism. The left and right sides of the rotating gear Both ends are meshed with a driving mechanism; a sliding mechanism is installed in the guide chute, and an antenna mechanism is installed on the sliding mechanism; a winding mechanism is installed on the lower surface of the rotating gear, and the driving mechanism, rotating gear, ring guide mechanism, The mechanism, the sliding mechanism and the antenna mechanism cooperate to move to complete the spiral lifting and guiding process of the antenna mechanism. The invention can realize the functions of stable automatic spiral lifting signal height of radar antenna and precise adjustment of signal receiving azimuth.

The invention discloses a non-woven fabric needling machine. The needling machine comprises a rotating table provided with a rotating table motor, a clamp for fastening a mold, a manipulator located on one side of the mold, a needling assembly arranged on the manipulator and used for performing needling operation on carbon fiber on the mold as well as an anti-falling assembly arranged on the manipulator and used for laterally supporting the mold, wherein the clamp is connected with an output shaft of the rotating table motor and rotates along with the output shaft of the rotating table motor,the mold is located right above the clamp, and to-be-needled carbon fiber winds around the mold; and the anti-falling assembly and the manipulator are located on two opposite sides of the mold respectively. The non-woven fabric needling machine has the advantages of being simple in structure and convenient to operate and occupying little space.

The invention discloses an aero-engine internal nut universal joint driven tightening device and method and belongs to the technical field of automatic assembly. The aero-engine internal nut universaljoint driven tightening device comprises a tool pre-locating system, a nut alignment locating system and a universal joint tightening system. A nut to be tightened is sleeved with a tightening sleevethrough the nut alignment locating system. A tightening motor drives the tightening sleeve to complete tightening operation. The aero-engine internal nut universal joint driven tightening device adopts the automatic operation mode to implement the steps of coaxially locating the tightening device and a rotor shell, rotating the tightening sleeve to the nut to be tightened, tightening the nut andthe like, has the characteristics of being high in automation degree, motion precision and tightening precision, reduces manual operation tasks, greatly simplifies the operation process, avoids errorscaused by manual operation and ensures the tightening consistency of the internal nut, and the working efficiency of whole machine assembling is improved.

The invention discloses an assembly device for a low-pressure turbine shaft-disc assembly of an aero-engine. The assembly device comprises a turbine clamp, a turbine shaft posture adjustment and buttjoint system, a transposition type tightening system and a lathe bed. According to the assembly device, the turbine clamp realizes horizontal installation of the axis of a turbine unit body; the turbine shaft attitude adjustment and butt joint system realizes parallel calibration movement and concentric calibration motion of the contact end surface of a turbine shaft relative to a connecting discand realizes feeding butt joint motion of the turbine shaft relative to the connecting disc; the transposition type tightening system realizes transposition of a tightening shaft to a tightening station corresponding to bolts distributed circumferentially. The assembly device has the advantages that a horizontal installation mode of the axis of a low-pressure turbine shaft-disc is adopted, so thatcentering positioning calibration of the turbine shaft relative to the connecting disc can be realized, the end surfaces can be accurately and tightly attached, and therefore the butt joint assembling precision can be improved; and the transposition type tightening system is adopted, the bolt pre-tightening force deviation can be effectively controlled by using the tightening shaft, and thereforethe tightening quality can be ensured; and a gantry type mobile station is adopted, and therefore the problem of motion interference in the feeding process of the tightening system can be solved.

The invention provides a flexible coupling, comprising a cylinder body and flanges which are arranged at two ends of the cylinder body. The invention is characterized in that the cylinder body is an FRP cylinder body; the flanges are fixedly connected with or integrated into a whole with a taper sleeve or a cylinder sleeve; the two ends of the FRP cylinder body are sheathed with, fixedly bonded to or fixedly connected with the taper sleeve or the cylinder sleeve respectively. The invention is especially suitable for the connection of a speed increasing box in wind power generation equipment and a wind power generation set, plays a good damping and impact and vibration absorption role, has the capability of providing the displacement compensation, effectively improves the motion quality and stability of transmission machines, reduces the noise and improves the safety performance of the equipment.

The invention provides a circuit breaker energy storage operating mechanism comprising a side plate component, a connecting rod component, a cam component, an energy storage component, a rotating shaft component, a control component and an interlocking component. The side plate component is internally provided with a driving shaft capable of rotating. The connecting rod component and the cam component are installed on the driving shaft. The connecting rod component is connected with the rotating shaft component. The cam component can be connected with the energy storage module in a contact manner to push the energy storage module to store energy. The rotating shaft component can be driven to realize closing through the connecting rod component when the energy storage module releases energy. The control component can be connected with the connecting rod component and the cam component in a locking manner. The control component is connected with the interlocking component in a driving manner and enables the energy storage module to release energy to complete closing through the cam component. The control component and the connecting rod component are separated so that the rotating shaft component is enabled to return to complete separating action. The circuit breaker energy storage operating mechanism is simple in structure, stable in action and easy and convenient to assemble.

The invention discloses a self-adaptive rotating platform mechanism. The self-adaptive rotating platform mechanism comprises an upper platform, a middle supporting mechanism and a bottom base plate. An annular guide rail is mounted on the lower surface of the upper platform in a lifting manner, namely the guide rail is positioned above guide rail sliders; the guide rail sliders are connected with the bottom base plate through the middle supporting mechanism; the middle supporting mechanism is provided with two solid supports to guarantee support stiffness of the upper platform; the two supports are in knuckle bearing structures to realize self-adaptive adjustment of the upper platform in movement. The self-adaptive rotating platform mechanism has the advantages that tolerance is improved, errors of + / -2mm in height of the supports are allowed, errors in peripheral position distribution of the supports, large manufacturing errors of arc guide rails and roundness errors in splicing and mounting of the arc guide rails are allowed, and utilization precision is unaffected while smoothness in rotational motion is guaranteed.

The invention discloses a servo connection rod spraying machine. The servo connection rod spraying machine comprises a driving sliding base, a worm and gear rotating mechanism, a driving connection rod, a driven connection rod, a spraying arm, a connecting pipe and a spraying module; the spraying module comprises a connecting head base and two spray nozzle fixing plates which are correspondingly fixed to the front side face and the rear side face of an installing plate part on the connecting head base; and each spray nozzle fixing plate is provided with a water spraying nozzle, an upper gas spraying nozzle and a lower gas spraying nozzle. The servo connection rod spraying machine is ingenious and reasonable in structural design and good in atomizing effect, spraying of a de-molding agent is more uniform, and therefore rubber molding is better facilitated, and the product quality is guaranteed; and the overall structure is simple, by means of cooperation of the driving connection rod and the driven connection rod, the mechanical strength is high, the structural stability is good, the service life is long, the spraying module can be driven to move by means of swinging of the driving connection rod, the whole action process is fast and flexible, the work efficiency is improved, the action stability is high, size is small, installing and daily maintaining are easy, flexibility is high, and wide application and popularization are facilitated.

The invention provides a high-precision rotary table of a gapless connecting rod mechanism and capable of moving slightly. The high-precision rotary table of the gapless connecting rod mechanism and capable of moving slightly comprises a driving motor, a motor supporting base, a rotary table body, a rotary table base, a base plate and the connecting rod mechanism, wherein the connecting rod mechanism comprises a bearing a, a crank, a connecting shaft a, a connecting rod, a bearing b, a connecting shaft b, an oscillating bar and a bearing c, the output torque of the motor is used as power for the rotation of the rotary table, the output shaft of the driving motor drives the crank to rotate, the crank drives the connecting shaft a installed on the crank and then the connecting rod is driven to swing, the connecting shaft b is driven to rotate through the swinging of the connecting rod, the oscillating bar is driven to swing through the rotation of the connecting shaft b, and then the rotary table body is driven to rotate, namely the torque of the motor is transmitted to the rotary table body through the crank, the connecting shaft a, the connecting rod, the connecting shaft b and the oscillating bar, and the rotary table body is driven to rotate within the range of a certain angle through the swinging of the oscillating. According to the high-precision rotary table of the gapless connecting rod mechanism and capable of moving slightly, due to the fact that a proper transmission ratio is configured and a high-precision angular contact ball bearing is pre-tightened, bearing clearance is eliminated and accuracy is improved.