226 results about "Mobile manipulator" patented technology

The invention provides an optimization method for whole-body motion planning of a mobile manipulator, and relates to the technical field of motion planning of the manipulator, and the method comprises the steps: determining environment features and a position gradient when a joint of the mobile manipulator changes based on a depth image shot by the mobile manipulator; performing strategy planning on the motion state and the motion action of the mobile mechanical arm through an actor-commentator network subjected to reinforcement learning training to obtain an expected speed of an end effector in the mobile mechanical arm; position constraint conditions used for obstacle avoidance of the movable mechanical arm are constructed based on the position gradient, and joint constraint parameters used for constraining the decision variables are constructed; and optimizing the decision variable based on a quadratic programming solver determined by the position constraint condition and the joint constraint parameter to obtain a planning result of the joint speed. According to the method and the device, the problem of limitation in the aspects of planning task completion, environment perception, constraint expression, obstacle avoidance and motion coordination during motion planning of the mobile mechanical arm is solved.

The invention belongs to the technical field of mobile mechanical arm grabbing, and provides a mobile mechanical arm grabbing control method and system based on machine vision, and the method comprises the steps: collecting an image in the moving process of a mobile mechanical arm according to a preset grabbing path, recognizing a dynamic obstacle in the image through an RT-DETR algorithm, and generating a prediction track of the dynamic obstacle, collision detection is conducted on a preset grabbing path of the movable mechanical arm, an obstacle avoidance track switching instruction is generated by combining the current time point of the mechanical arm with the predicted collision time point of the dynamic obstacle, trajectory tracking is conducted on the obstacle avoidance track of the mechanical arm, a model reference self-adaptive control algorithm is adopted, a reference model is established, and obstacle avoidance is achieved. According to the method, mechanical arm vibration caused by obstacle avoidance track switching is effectively restrained, interference of vibration on grabbing stability is reduced, and the operation precision and reliability of the mechanical arm in a dynamic obstacle avoidance scene are remarkably improved.

The present invention relates to a robot system, comprising: - a robot body (11); - a manipulator (10); - a control unit (20); and - at least one laser scanner (12); wherein the manipulator is mounted to the robot body; wherein the at least one laser scanner is mounted to the robot body; wherein the control unit is configured to move the manipulator relative to the robot body and / or control activation of the manipulator; wherein the control unit is configured to define at least one areal protective zone (14) at a periphery of the robot body, and wherein each areal protective zone of the at least one areal protective zone is defined at an angle between 45-90 degrees to the horizontal; wherein the control unit is configured to control the at least one laser scanner to project laser radiation in at least one 2D plane that is coplanar with the at least one areal protective zone and acquire at least one sensor data for reflected laser radiation within at least one coverage range or scan plane (13) within the at least one 2D plane, wherein each 2D plane is coplanar with an areal protective zone, and wherein each laser scanner is configured to project laser radiation in a 2D plane coplanar with an areal protective zone and acquire sensor data for reflected laser radiation within a coverage range or scan plane within the 2D plane that is at least a significant proportion of the areal protective zone; and wherein the control unit is configured to trigger a safety response upon acquisition of sensor data for reflected laser radiation within the at least one coverage range or scan plane within the at least one 2D plane.

The invention relates to a clamping control method of a movable mechanical arm. The clamping control method is used for solving the problem of collaborative optimization of stability and precision in clamping operation. According to the method, a motion coupling factor and a contact force gradient mode length are calculated in real time through a dynamic coordination module, base-world coordinate system conversion is combined to realize bidirectional constraint of chassis speed and mechanical arm torque, instability caused by sudden load change is inhibited, a time-varying sliding mode surface and an anti-buffeting control law are adopted for sliding mode control, and the stability of a mechanical arm is improved. Dynamic boundary layer thickness and adaptive gain are introduced, control parameters are further optimized through a double-delay depth deterministic strategy gradient, and a multi-target reward function is designed. According to the method, the robustness of the system is remarkably improved through closed-loop optimization, and the stability and precision of the movable mechanical arm in the clamping operation are improved.

The invention belongs to the field of robot motion planning and trajectory optimization, and discloses an improved NSGA-III (Non-dominated Sorting Genetic Algorithm-III)-based comprehensive performance optimization method for a space-time trajectory of a mobile mechanical arm. Comprising the steps of 1, generating an initial path of the mobile mechanical arm; 2, trajectory space-time parameterization representation is carried out; 3, a multi-objective function is established, specific task constraints are added, and a smooth and safe track meeting dynamic constraints is generated so that the mobile mechanical arm can complete a specific task; and step 4, improving an NSGA-II algorithm to realize trajectory optimization. According to the method, aiming at a plurality of targets such as obstacle avoidance, path smoothness, dynamic constraint and time optimization of the high-degree-of-freedom mobile mechanical arm, a spatial-temporal trajectory representation method is adopted to directly control waypoints and time, so that the calculation cost in the optimization process is reduced, efficient optimization is realized, and the optimization efficiency is improved. And an intelligent optimization algorithm is adopted to overcome the problem that an optimal solution is difficult to seek due to nonlinearity.

The invention relates to the technical field of ink jet control, and discloses an intelligent ink jet control system and method, a robot and a storage medium. The method comprises the following steps: firstly, acquiring surface contour data and color information of an object to be jetted through a laser ranging device, and constructing an object surface feature vector; a target ink jet area is determined through area spray adaptability evaluation; then, semantic information of ink jet content is obtained, semantic element weights are calculated, and ink jet parameter constraints including an ink droplet size threshold value, an information level presentation rule and the like are generated in combination with a target area range; generating an intelligent ink-jet scheme according to the constraint, and controlling an ink-jet device to form a target pattern; and finally, a moving path of the moving mechanical arm is generated based on a cubic spline interpolation algorithm, and the target pattern acts on the target area. The method can adapt to complex surface forms and various materials, the ink jet process is accurately controlled, patterns are accurately presented and stably attached, and the ink jet effect and the information transmission effectiveness are improved.

To provide an item picking robot. [Solution] The device includes a traveling mechanism, a storage mechanism consisting of multiple horizontally arranged shelves is provided on the top of the traveling mechanism, identical lifting traverse mechanisms are provided on both sides of the storage mechanism, and a robot hand mechanism is provided on the bottom of the lifting traverse mechanism. In this invention, the lifting traverse mechanism moves the robot hand mechanism, an article is picked up through the robot hand mechanism, and when the robot hand mechanism picks up an article, it can extend the whole downward to grasp it, so that the operation is simple and quick, and then the lifting traverse mechanism moves the robot hand mechanism after picking up the article close to the storage mechanism, and after it rises to the corresponding shelf, it moves the robot hand mechanism horizontally to just above the shelf and opens the robot hand mechanism, and since the storage mechanism has multiple shelves, more articles can be transported at one time, improving the picking capacity.

The invention belongs to the field of robot motion control, and discloses a dynamic sliding mode motion control method for a mobile manipulator based on dynamic online identification feedforward, which comprises the following steps of: 1, designing a physical consistency linearization coupling dynamic model of the mobile manipulator; 2, designing a self-adaptive Kalman filtering algorithm based on modeling error covariance dynamic updating, and realizing high-precision online identification of the physical consistency kinetic parameters of the mobile mechanical arm; 3, designing a recursive dynamics feedforward algorithm of the mobile mechanical arm; 4, a self-adaptive over-torque dynamic sliding mode control algorithm based on recursive dynamics feedforward is designed, the continuity of the control law is guaranteed, and high-precision finite time convergence of the motion error of the mobile mechanical arm is achieved; and 5, the stability of the controller is achieved through a Lyapunov design method, a paradigm framework of robot dynamics feedforward finite time motion control is formed, and the response speed and precision of robot motion control can be effectively improved.

The invention relates to the technical field of steel beam welding, in particular to an automatic steel box beam flange plate welding trolley device which comprises a walking trolley, a shear fork lifting table is arranged on the walking trolley, a mounting table is mounted at the top of the shear fork lifting table, and a flange plate containing frame used for containing a flange plate is arranged on the mounting table. The mounting table is further provided with a vacuum suction cup assembly used for grabbing a flange plate on the flange plate containing frame, the vacuum suction cup assembly is mounted on the mounting frame, the mounting frame is fixedly mounted at the working end of the mechanical arm, the side, located on the mounting table and away from the flange plate containing frame, of the mechanical arm is provided with a first sliding rail extending horizontally, and a sliding table is arranged on the first sliding rail. According to the technical scheme, a plurality of flange plates are placed through the flange plate placing frame, so that the flange plates can be moved with materials, and the manipulator is matched with the vacuum suction cup assembly and the welding robot to achieve mounting, positioning and automatic welding of the flange plates.

The invention relates to the technical field of unmanned system multi-agent control, in particular to a wheel type mobile mechanical arm coordination control method, system and device. Comprising the following steps that a wheeled mobile mechanical arm model is established, and a target reachability area is solved; the operability index of the wheeled mobile mechanical arm is calculated; calculating the maximum linear velocity and angular velocity of the wheel type mobile mechanical arm to obtain a velocity ellipsoid model of the wheel type mobile mechanical arm; designing a multi-agent combined state space, and designing a multi-agent combined action space; constructing a control algorithm flow; setting a task scene of a coordination control algorithm of the wheeled mobile manipulator, setting training hyper-parameters, and designing task evaluation indexes; and carrying out training setting, and recording the success rate of the task and the validity of the process when the training period is finished. According to the method, the problem that the model structure is complex and depends on kinematics equation solving or objective function optimization under the high-dimensional condition is solved. According to the invention, the technical effect of reducing complexity calculation is achieved.

The utility model provides a feeding unit and a cover buckling system, relates to the field of photovoltaic technology, and aims to solve the technical problem of low production efficiency of cover body feeding when a cover body and a box body are assembled. The feeding unit comprises a material table, a mechanical arm and a first jacking part movably arranged on the material table, the material table is used for bearing a stock bin, and a plurality of cover bodies are stacked in the stock bin in the depth direction of the stock bin. The first jacking part is used for penetrating through the bottom of the stock bin to push the plurality of cover bodies to move towards the top of the stock bin; the mechanical arm is used for grabbing the cover body located on the top layer in the multiple cover bodies and placing the cover body at a preset position. According to the feeding unit, automatic feeding of a plurality of cover bodies can be achieved, and the production efficiency is improved.

The invention discloses a decoupling motion control method and system for a four-footed mobile operation robot considering the acting force of a mechanical arm, and belongs to the field of motion control of foot type mobile operation robots. An expected motion track input by a user can be tracked by performing planning through linear model prediction control MPC; on the basis of the tracked motion trail, mechanical arm joint control torque is calculated through a mechanical arm dynamic model and PD feedback; through nonlinear model predictive control NMPC planning, a quadruped robot whole-body motion trail of mechanical arm acting force obtained through calculation according to a mechanical arm dynamic model is considered, and an expected speed trail and an expected force trail input by a tracking user are obtained; and according to an expected speed trajectory and an expected force trajectory input by a tracking user, a whole body controller WBC based on hierarchical quadratic programming calculates a joint driving torque for tracking the expected trajectory according to task priorities. According to the method, the acting force / torque of the mechanical arm to the robot body is considered during motion control of the quadruped robot, and decoupling control over the mechanical arm and the quadruped robot in the quadruped mobile operation robot is achieved.

The invention belongs to the technical field of robot control, and discloses a visual servo intelligent robust control method for a mobile mechanical arm for a complex operation task, which comprises the following steps of: 1, acquiring a working scene image, and calculating a space coordinate of a target feature point in real time through a projection transformation model; step 2, dynamically inhibiting visual measurement noise by adopting adaptive Kalman filtering, generating a feedforward compensation signal through an integral sliding mode observer, and decoupling chassis slippage disturbance; step 3, inputting the pose signal into a radial RBF neural network, designing an RBF gain scheduler, and adjusting an output proportion-integral gain in real time to suppress external time-varying disturbance; 4, adopting a hybrid visual servo mode switching mechanism, and generating a mobile platform control instruction through an integral sliding mode surface in a position servo mode; and 5, designing a three-order composite controller to drive the mechanical arm so as to realize accurate grabbing. According to the method, the grabbing deviation caused by kinematics uncertainty of the mobile platform and dynamic environment disturbance is eliminated.

The invention discloses a mobile manipulator man-machine collaborative operation motion control method based on quadratic programming, which comprises the following steps of: 1, constructing a kinematic equation of a mobile manipulator, and designing a quadratic programming solver to describe a mobile manipulator coordinated control problem in a man-machine collaborative operation scene; 2, a constraint function of a quadratic programming solver is designed, equality constraints are utilized to meet end speed tracking in a cooperative task, and inequality constraints are utilized to realize joint limit position avoidance; 3, designing a translation operability index, a collaborative operation formation optimization index, a relaxation cost dynamic control function and a joint speed cost dynamic control function which are suitable for a man-machine collaborative task, and integrating the indexes and the functions into a target function of a quadratic programming solver, and a mobile mechanical arm man-machine collaborative operation motion control frame based on quadratic programming is formed.

The utility model discloses a full-automatic feeding and discharging engraving and milling machine, which relates to the technical field of numerical control lathe bed processing of engraving and milling machines and comprises a lathe bed, a first Y-axis driving component, a second Y-axis driving component, a cross beam, a manipulator component, a feeding conveyor belt and a feeding and taking mechanism. Wherein the first Y-axis driving assembly and the second Y-axis driving assembly are fixedly arranged on the lathe bed, are provided with four-side positioning jigs and can be driven to move along the Y axis. The mechanical arm assembly is installed on the lathe bed and driven by an air cylinder to move along the X axis. The cross beam is arranged above the Y-axis driving assembly, is provided with a plurality of Z-axis driving assemblies and is fixedly connected with the lathe bed, and a machining main shaft is arranged at one end of each Z-axis driving assembly. The automatic feeding and discharging manipulator has the advantages that a plurality of workpieces can be machined at a time, so that equipment cost is greatly saved, dependence on manpower is reduced due to the automatic feeding and discharging functions of the manipulator, production efficiency is greatly improved, and product quality is guaranteed.

The utility model relates to the field of injection molding, in particular to a sucker type manipulator jig capable of automatically taking a product and automatically installing an insert. The air cylinder is arranged on the base plate, the four guide columns are arranged on the base plate and located on the periphery of an air cylinder shaft, the four guide sleeves are arranged at the four corners of the push plate respectively, the four guide sleeves and the four guide columns are in one-to-one correspondence in position, the ejector pin is arranged on the outer side of the push plate, the insert pin is arranged in the ejector pin, the auxiliary base plate is arranged at the bottom of the base plate, and the auxiliary base plate and the base plate form an L shape. The suction cup base is arranged on the base plate, and the suction cup is arranged on the suction cup base. After the mold is opened, the manipulator descends, the insert is horizontally aligned with the mold through the jig guide column and the mold positioning hole, the air cylinder pushes the push plate ejector sleeve pin to push the insert to the mold insert pin, and when a product is sucked, the in-mold posture is turned over by moving the manipulator; and the multiple suction cups are used for sucking the product to complete the operation of automatically sucking the product. And the device is particularly suitable for large products and cannot damage the products.

The utility model discloses a nitrogen bin for automatically storing wafers, which belongs to the field of storage equipment, is used for solving the problem of low efficiency of manual wafer storage and taking in the prior art, and comprises a bin body, a goods shelf, a conveying line and a material taking mechanism, the bin body is provided with a closed storage cavity, and the bin body is provided with a feed port and a discharge port which are communicated with the storage cavity; the goods shelf is arranged in the storage cavity and is used for placing wafers; the conveying line is arranged in the storage cavity and connected with the feeding port and the discharging port. The material taking mechanism comprises a moving module and a mechanical arm which are arranged in the storage cavity and connected with each other, the moving module is used for driving the mechanical arm to move between the goods shelf and the conveying line, and the mechanical arm is used for grabbing the conveying line or the wafers on the goods shelf and placing the wafers on the goods shelf or the conveying line. According to the wafer automatic storage nitrogen bin, the conveying line, the moving module and the manipulator cooperate to realize automatic storage and taking functions of wafers, so that the efficiency and the accuracy of wafer product storage and taking operation are improved.

A robot comprises a mobile base, a robotic arm operatively coupled to the mobile base, and at least one interface configured to enable selective coupling to at least one accessory. The at least one interface comprises an electrical interface configured to transmit power and / or data between the robot and the at least one accessory, and a mechanical interface configured to enable physical coupling between the robot and the at least one accessory.

The invention provides a robot mobile mechanical arm coordinated motion planning method and system which can be applied to the technical field of robot control and the like. The method comprises the steps that space-time joint trajectory planning is achieved based on a multi-type algorithm, a moving base incomplete constraint path and a moving mechanical arm tail end path are generated through a three-dimensional occupation map obtained through environment perception, an improved preset trajectory optimization algorithm is adopted to constrain speed / acceleration, and smoothness and obstacle avoidance capacity are improved; a vision-motion collaborative optimization scheme is provided, joint speed and holder control quantity are solved at the same time through quadratic programming, and perception information gain maximization and motion stability are considered on the premise that mechanical constraints and an environment distance field are met; meanwhile, a re-planning mechanism of dynamic risk perception is developed, and when the environment changes or enters a visual blind area, real-time adjustment of a local track is achieved by enhancing safety distance constraint and forcing visibility requirements.

A method for controlling a mobile manipulator (1) comprising a manipulator base (3) and at least one manipulator arm (5), the method comprising the steps of: determining a current configuration of the mobile manipulator (1) including a manipulator arm configuration and a manipulator base configuration, determining a desired movement trajectory of the mobile manipulator (1), determining, a current zero-movement points, ZMP, trajectory, comprising the location of one or more current ZMP of the mobile manipulator, based on the current configuration of the mobile manipulator (1) and the desired movement trajectory, determining a desired ZMP trajectory of the mobile manipulator (1), wherein each ZMP is located within a support polygon of the manipulator base (3), adjusting the mobile manipulator (1) such that the current ZMP trajectory corresponds to the desired ZMP trajectory, wherein the step of adjusting the mobile manipulator (1) comprises the step of adjusting a center of mass of the mobile manipulator (1) including an adjustment of the manipulator arm configuration.

The invention discloses a dynamic obstacle avoidance method for a mobile manipulator based on visual perception and null-space control, which comprises the following steps: dynamically adjusting the weight distribution of the movement of a mobile platform and the movement of the manipulator in a whole task based on real-time environment perception information and the real-time movement state of the mobile manipulator; the method comprises the following steps: detecting an obstacle in a working environment in real time through a visual perception module, and predicting a movement track of the obstacle in combination with a Transform network model based on a graph structure; according to the real-time position and the predicted track of the obstacle, motion parameters are dynamically adjusted, and a speed potential field function model associated with the shortest distance between the obstacle and the mobile mechanical arm is designed by adopting a speed potential field method; according to the method, the rejection speed of an end effector is introduced to compensate the interference of an obstacle on the end effector, and the rejection speed is combined with the expected speed of the end effector and the obstacle avoidance guiding speed obtained by solving through a speed potential field method, so that dynamic obstacle avoidance of the robot in the process of executing a set task is realized; and the task execution path is optimized while the obstacle is effectively avoided.

The present invention discloses a trajectory tracking method for a variable-load mobile manipulator based on reinforcement learning and model predictive control. First, a system model of the mobile manipulator established based on Lagrange's equation is obtained, and the dynamic equation is derived through the system kinetic energy, potential energy, and generalized force formulas. The model predictive control (MPC) module is based on this model, uses the discrete state equation to predict the future state, and obtains the control input by optimizing the cost function. The reinforcement learning (RL) module defines a specific state space, action space, and reward function, and trains the agent using the Q-learning algorithm. In the collaborative control stage, the weight coefficient is dynamically adjusted according to the system state, and the control inputs of MPC and RL are fused. The present invention effectively solves the problem of trajectory tracking of variable-load mobile manipulators, significantly improves the trajectory tracking accuracy, enhances the system adaptability and robustness, and has broad application prospects in the fields of industrial manufacturing, logistics warehousing, etc.

A method of estimating one or more mass characteristics of a payload manipulated by a robot includes moving the payload using the robot, determining one or more accelerations of the payload while the payload is in motion, sensing, using one or more sensors of the robot, a wrench applied to the payload while the payload is in motion, and estimating the one or more mass characteristics of the payload based, at least in part, on the determined accelerations and the sensed wrench.

The invention discloses a mobile manipulator coordinated motion control method based on operability self-adaptive optimization, and the method comprises the steps: achieving the synchronous control of a main task and a secondary task through designing a mobile manipulator redundant kinematics null-space analysis method; by designing a task space motion distribution algorithm based on Jacobian matrix adaptive weighting pseudo-inverse, the tail end motion precision is ensured by considering the vehicle-arm motion characteristic difference; by designing an extended operability adaptive weighted optimization algorithm based on operability and self-collision avoidance, the safety and operability of vehicle-arm coordinated movement are improved; by designing a mobile manipulator coordinated motion control algorithm based on kinematics parameter adaptive estimation, finite time convergence of a tail end tracking error is realized; the finite time stability of the controller is realized through a Lyapunov design method, and the coordination, response speed and precision of continuous operation of the mobile mechanical arm are improved.

The invention discloses an automatic mounting mechanical arm for a tunnel pipeline. According to the core scheme, the automatic mounting mechanical arm comprises a walking track mechanism, a manipulator mechanism, a pipeline clamp mechanism and a pipeline butt joint compensation mechanism. The walking track mechanism is used for driving the mechanical arm mechanism to move in the tunneling direction and the section horizontal direction, the mechanical arm mechanism comprises at least one set of mechanical arms with a single-action / linkage control mode and is used for grabbing a to-be-installed pipeline and adjusting the space posture, and the pipeline clamp mechanism is arranged at the tail end of the mechanical arms. And the pipeline butt joint compensation mechanism is used for achieving flexible clamping and rigid locking of the pipeline, and the pipeline butt joint compensation mechanism is used for compensating the posture error of the butt joint position of the pipeline to achieve accurate alignment of the flange. Full-automatic grabbing, transferring, positioning and butt joint of pipelines in a tunnel can be achieved, the pipeline installation efficiency and butt joint precision are greatly improved, the manual operation intensity is reduced, and the robot is suitable for various pipeline installation working conditions of shield construction and high in universality.

A method for controlling a mobile manipulator (1) comprising a manipulator base (3) and at least one manipulator arm (5), the method comprising the steps of: determining a current configuration of the mobile manipulator (1) including a manipulator arm configuration and a manipulator base configuration, determining a desired movement trajectory of the mobile manipulator (1), determining a current zero-movement points, ZMP, trajectory, comprising the location of one or more current ZMP of the mobile manipulator (1), based on the current configuration of the mobile manipulator (1) and the desired movement trajectory, determining a desired ZMP trajectory of the mobile manipulator (1), wherein each ZMP is located within a support polygon of the manipulator base (3), adjusting the mobile manipulator (1) such that the current ZMP trajectory corresponds to the desired ZMP trajectory, wherein the step of adjusting the mobile manipulator (1) comprises a dynamic manipulator arm movement, which is controlled by first control function (I) wherein "ZMP des (t)" is the desired ZMP trajectory; "ZMP real " is the real ZMP trajectory; "t"is a time; (II) are joint states of acceleration, velocity and position of the manipulator arm (5); (III) are a rotation position, rotation velocity and rotation acceleration of the manipulator base (3), and "e" is a deviation of the real ZMP trajectory from the desired ZMP trajectory.

The invention discloses a multi-stage rotating mechanical arm and a discharging device, the multi-stage rotating mechanical arm comprises a mechanical arm body and a moving mechanism, the mechanical arm body comprises a plurality of transmission assemblies and a plurality of rotatable clamping jaws, and the clamping jaws are linked through the transmission assemblies so as to rotate synchronously; the moving mechanism is connected to the manipulator body, and the moving mechanism body is used for driving the manipulator body to rotate and move integrally. The multiple clamping jaws of the mechanical arm body can clamp the adapters, all the clamping jaws rotate synchronously through the transmission assembly, all the adapters are rotated to the same placing direction, and therefore the conveying requirement is met; the manipulator body integrally rotates through the moving mechanism and moves to all the conveying lines, it is guaranteed that all the adapters can reach target positions in the conveying process, and therefore the conveying process is completed.

The invention discloses an intelligent transfer and multi-station cooperative assembly system and method for sheet pipe truss machining. The intelligent transfer and multi-station cooperative assembly system comprises an electromagnetic rail, and an AGV trolley is movably connected to the electromagnetic rail; a truss transferring manipulator and a truss moving manipulator; the shot blasting machine is used for carrying out shot blasting treatment on the rod piece; the truss boxing robot is used for carrying out boxing treatment on the rod pieces subjected to shot blasting treatment; and the forklift robot is used for conveying the rod pieces on the AGV trolley at the material receiving station to the joist barrow, and the rod pieces are conveyed to the assembling station, the welding station, the polishing and shape adjusting station and the paint shed through the joist barrow. According to the invention, the closed-loop assembly line work of cutting-cleaning-transportation can be realized, rhythm faults caused by manual intervention are reduced, the overall productivity is improved, the forklift robot can accurately receive the rod pieces transported by the AGV and convey the rod pieces to a material receiving station, the traditional material transfer and stockpiling time is eliminated, and the production cycle is shortened.

A robot comprises a mobile base, a robotic arm operatively coupled to the mobile base, and at least one interface configured to enable selective coupling to at least one accessory. The at least one interface comprises an electrical interface configured to transmit power and / or data between the robot and the at least one accessory, and a mechanical interface configured to enable physical coupling between the robot and the at least one accessory.

The utility model provides a four-axis truss, and relates to the technical field of four-axis trusses. Positioning blocks are fixedly mounted at the upper ends of the two ends of the fixed cross beam respectively; and a first drag chain is mounted on the front side wall of the fixed cross beam. The position of the movable longitudinal beam is firstly adjusted left and right, then the position of the movable longitudinal beam is adjusted front and back, then the position of the adjusting beam is moved up and down, meanwhile, the position of a connecting shaft below the adjusting beam can also move along with the adjusting beam, the manipulator clamp can move front, back, left, right, up and down, and the position of the clamp can be accurately adjusted through movement in six directions (X / Y / Z axis translation). The four-axis truss is suitable for objects of different shapes and sizes, is particularly suitable for grabbing in complex arrangement or narrow space, and solves the problem that the position of a manipulator clamp on the four-axis truss needs to be automatically adjusted due to the fact that the four-axis truss mostly adopts a fixed guide rail layout and the placement positions of the objects are different, otherwise, the manipulator clamp cannot stably clamp the objects below.