Abstract: A welding accessory tool for thin walled pipes includes a bolt, a first hub, a second hub, and a plurality of arm assemblies. Each of the plurality of arm assemblies that is radially positioned around the first hub and second hub includes a first arm section, a flat arm section, and a second arm section. The first arm section is hingedly mounted to the flat arm section and the second arm section. The first arm section and the second arm section are terminally positioned opposite of each other about the flat arm section. The first arm section is hingedly mounted to the first hub. The second arm section is hingedly mounted to the second hub. The first hub is concentrically positioned around the bolt. The second hub is threadedly engaged with the bolt thus enabling the arm assemblies to expand and collapse through rotational movement of the bolt.

Abstract: A valve assembly may include a seat that is formed integrally (e.g., cast) into a dovetail shaped cavity. A portion of the seat is present above the surface of the disc according to a desired profile and to provide a bubble tight seal. Walls of the dovetail may include an angled surface (e.g., 45 degrees) for retention considerations. The dovetail may be cast, as opposed to machined, to reduce manufacturing costs. Additionally, the seat may be mechanically deformed before it can be removed.

Abstract: Turbine wheels, turbine engines, and methods of fabricating the turbine wheels are provided. An exemplary method includes fabricating a turbine wheel that includes a rotor disk and a plurality of turbine blades operatively connected to the rotor disk through a blade mount. The method includes locating a cooling passage within a blade mount preliminary configuration and a cooling inlet on a surface of the blade mount preliminary configuration. A rotor disk bonding surface geometry and a blade mount bonding surface geometry are designed based upon a stress analysis of the turbine wheel and locations of the cooling passage and cooling inlet. A rotor disk production configuration and a blade mount production configuration are generated based upon the preliminary configurations. A blade mount and a rotor disk are formed based upon the production configurations. A blade ring including a plurality of blade mounts is formed and bonded to the rotor disk.

Abstract: The present invention relates to a device for the removal of a pallet jack's load wheel pins. Where said invention is comprised of a hydraulic jack secured in a horizontal position within a frame assembly. A tooling adapter is fitted on the end of the piston rod so that the piston rod may push against the pallet jack's load wheel pin when the piston rod is extended. The frame assembly is slid underneath the forks of the pallet jack and the hydraulic jack's piston rod is aligned with the pallet jack load wheel pins that are to be removed. When the hydraulic jack is activated, the piston rod pushes against the pallet jack's load wheel pins pushing them out from the load wheel allowing the load wheel to be removed from the pallet jack's fork. Large extension springs are mounted on the underside of the frame assembly and are attached to piston rod to return the piston rod to the hydraulic jack once the load wheel pins are removed.

Abstract: A work table includes a baseplate, a plurality of levers, a clamp plate, a lock mechanism, and an unlocking mechanism. The plurality of levers are disposed on a concentric circle on the baseplate. Guide bars protrude upward from the plurality of levers. The plurality of levers are each disposed to be movable in a radial direction of the circle. The clamp plate is placed on top surfaces of the levers. The clamp plate has elongated holes in the radial direction through which the guide bars penetrate. The lock mechanism urges the clamp plate downward such that the respective levers are fixed in a manner sandwiched between the baseplate and the clamp plate. The unlocking mechanism releases the fixing of the respective levers by the lock mechanism.

Abstract: A main spindle device (10) for a machine tool that checks the seating of a tool holder (30) using compressed air, wherein the main spindle device (10) for a machine tool comprises: a main spindle (12) that has a distal end face (18) in close contact with a flange end of the tool holder (30); an annular recess (25) that is formed on the distal end face (18) of the main spindle so as to be covered by the flange end of the tool holder; an air supply flow channel (21) that is linked to the annular recess and that supplies compressed air to the annular recess; a compressed air source (23) that supplies air to the air supply flow channel; and a pressure detector (22) that detects the pressure of the compressed air in the air supply flow channel. The annular recess (25) has a first section (25a) and a second section (25b) that is deeper than the first section, and the air supply flow channel is opened to the second section (25b).

Abstract: An industrial machine is an industrial machine which has a history recording function, and includes: a manual pulse generator which includes a handle for manually operating the position of a drive axis in the industrial machine by an operator; a drive axis control unit which controls the drive axis according to the operation of the handle; a handle operation determination unit which determines the operation of the handle; and an operation history recording unit which records, as an operation history, the operation of the handle determined with the handle operation determination unit, and when the number of rotations of the handle exceeds a threshold value, the handle operation determination unit determines the operation of the handle, and the operation history recording unit records, as the operation history, the operation of the handle.

Abstract: A device for simultaneously measuring and adjusting the tool holding portion of a spindle. The device has a body defining a datum surface providing a magnetic portion and an indicator portion. A socket extends from the magnetic portion, the socket dimensioned and adapted to receive and seat a first component of the tool holding portion on the magnetic portion. A compressible indicator tip extends in an outward-biased manner from the indicator portion, wherein a distance from the distal end of the indicator tip and the indicator portion of the datum surface is displayed along the body.

Abstract: A method for identifying a workpiece includes: taking an image of a workpiece storage area; determining whether there is the workpiece in the workpiece storage area based on the image taken; determining, whether there is an overlap where soft parts of the workpieces overlap one another in the workpiece storage area, based on the image; identifying an uppermost soft part that is located at a highest position among the overlapping soft parts, based on the image; and determining the workpiece having the identified uppermost soft part as an uppermost workpiece that is located at a highest position among the workpieces in the workpiece storage area.

Abstract: A handheld belt sander includes a main body having a motor connected with a rotating wheel and a base extending along a first straight direction. A mount is fixed to the base. A straight rod extending along a second straight direction with no bend is disposed on the mount. The second straight direction is upward from the first straight direction at a raise angle. A roller is disposed on the straight rod. A flat plate extending under the straight rod is disposed on the mount. A grinding belt encircles the rotating wheel, the roller and the flat plate and is tightened by the straight rod. A lower part of the grinding belt under the straight rod abutted against the flat plate. A space to be entered for the grinding belt formed between the straight rod and an upper part of the grinding belt above the straight rod.

Abstract: Provided is a method of double-side polishing a wafer by which variations of the GBIR values of polished wafers between batches can be reduced. In the method of double-side polishing a wafer, a current batch includes measuring the center thickness of the wafer before polishing (S100); setting a target GBIR value within a predetermined range (S110); calculating a polishing time of the current batch based on Formula (1) (S120); and polishing both surfaces of the wafer for the calculated polishing time (S130). Polishing time of current batch=polishing time of previous batch+A1×(center thickness of wafer before polishing in previous batch?center thickness of wafer before polishing in current batch)+A2×(GBIR value of wafer after polishing in previous batch?target GBIR value)+A3??(1), where A1, A2, and A3 are predetermined coefficients.

Abstract: A chemical mechanical polishing (CMP) pad includes a polishing portion formed using a vat-based additive manufacturing process. The polishing portion includes a polymer material with a first elastic modulus. In some embodiments the polishing portion is disposed on the backing portion. The backing portion may have a second elastic modulus. The second elastic modulus may be less than the first elastic modulus.

Abstract: The present invention provides a polishing pad for a wafer polishing apparatus, comprising: an upper pad having a front surface part, which has a cut surface and is in contact with a wafer, a rear surface part positioned on the lower part of the front surface part, and a plurality of grid grooves passing through the front surface part and the rear surface part; a lower pad, which is arranged on the lower part of the upper pad and can be attached to a surface plate; and an adhesion part positioned between the upper pad and the lower pad to couple the upper pad with the lower pad.

Abstract: A chemical mechanical polishing pad includes a surface portion of a first material. The surface portion includes a plurality of grooves. A first portion of the grooves are exposed grooves located at a surface of the chemical mechanical polishing pad. A second portion of the grooves are buried grooves embedded below the surface of the chemical mechanical polishing pad, such that, during use of the chemical mechanical polishing pad, one or more of the buried grooves are exposed at the surface.

Abstract: A workpiece spindle for a magnetic-shoe external cylindrical grinding machine a spindle for rotating a ring-shaped workpiece, a holding device for holding the ring-shaped workpiece and a hydraulic magnetic core lifting device coupled to the spindle and to the holding device to vary an axial spacing between the holding device and the spindle. The holding device has a magnetic shoe for clamping the ring-shaped workpiece in the holding device.

Abstract: A super hard construction comprises a substrate and a super hard material layer formed over the substrate. One of the interface surface of the substrate or the interface surface of the super hard material layer comprises a plurality of spaced-apart projections arranged to project from the interface surface; the projections being arranged in a substantially annular discontinuous first array around the central longitudinal axis and spaced from the peripheral surface of the substrate by a distance of between around 1 mm to around 1.5 mm. A second substantially annular discontinuous array of projections is positioned radially within the first array. The projections in the second array are positioned to radially align with spaces between the projections in the first array, the interface surface between the projections being substantially planar; and the projections in the first array are of a greater height than the projections in the second array.

Abstract: The invention relates to a PCD composite compact element comprising a PCD structure integrally bonded at an interface to a cemented carbide substrate; the PCD structure comprising coherently bonded diamond grains having a mean size no greater than 15 microns; the cemented carbide substrate comprising carbide particles dispersed in a metallic binder, the carbide particles comprising a carbide compound of a metal; wherein the ratio of the amount of metallic binder to the amount of the metal at points in the substrate deviates from a mean value by at most 20 percent of the mean value.

Abstract: Object: Provided are an abrasive roll capable of easily improving abrasiveness and a method for manufacturing an abrasive roll. Solution: An abrasive roll (1) includes a core member (12) extending in the axial direction and an abrasive part (13) including a sheet (14) member of non-woven fabric wound a plurality of times around the core member (13), wherein a plurality of perforations (16) penetrating in the thickness direction of the sheet member (14) are formed in the sheet member (14).

Abstract: The application relates to a backing pad arrangement suitable for an abrading system. The backing pad arrangement comprises a backing pad (413, 513, 523), and an additional layer (418, 518, 528) or an abrading article (417, 527) adapted to be attached to the backing pad (413, 513, 523) with at least one fixing member (319, 419, 519, 529), which at least one fixing member (319, 419, 519, 529) is hollow in its longitudinal direction. The application further relates to the abrading system comprising the backing pad arrangement according to the application.

Abstract: An abrasive article having a backing layer having a first major surface opposing a second major surface and a plurality of apertures extending from the first major surface to the second major surface. A plurality of abrasive particles having a first end with a smaller dimension than a second end and at least some of the plurality of abrasive particles located in at least some of the plurality of apertures such that the first end of the abrasive particle passes through an individual aperture and extends above the second major surface and the second end of the abrasive particle will not pass through the individual aperture. A binder coating applied to the plurality of abrasive particles retaining them in the backing layer.

Abstract: A grinding wheel center hole protection pad is provided, which mainly include a positioning portion attached to the peripheral thereof and the guiding portions disposed at the center hole at the axial center thereof. The guiding portions serve as the isolation layer between the center hole of the grinding wheel and the peripheral plate guiding wall of a flange plate. Therefore, the grinding wheel can be closely attached to the flange plate during the assembling process to decrease eccentricity. Accordingly, it is not necessary to perform the cutting calibration process and balance adjustment by a cutting machine, which can reduce the waste of manpower and material resources.

Abstract: The present disclosure relates to a gripper device which comprises: a belt pulley driven by a power-driven motor; a belt and another belt pulley driven by the above belt pulley; a ball screw driven and rotated by the belt pulley; nut brackets driven to be shifted along two rigid guideways by two reverse threads at both sides of the ball screw, respectively; a plurality of steel balls, which are installed between a nut bracket and a rigid guideway and sustain more stresses when a workpiece is clamped between two upper slide on the nut brackets.

Abstract: The present disclosure relates to a grip jaw structure with characteristics as follows: a cam disk is driven by a rotary motor; two transmission shafts are driven through two slotted guideways in the cam disk; lubricants inside the slotted guideways adhere to a plurality of bearings in which the transmission shafts in the slotted guideways are inserted when the transmission shafts are shifted; sliders between which a workpiece is clamped are driven to be shifted by the transmission shafts along linear rails at the top of the framework for stresses sustained and dispersed by bearings.

Abstract: A clamping device has a clamp surface with a base jaw and a countering jaw attached to a clamp surface. The base jaw has one or more through holes from its front base face to its rear base face so that a base accessory may be attached to the base jaw using the through holes in the base jaw. Likewise, the countering jaw also has one or more through holes from its front countering face to its rear countering face so that a countering accessory may be attached to the countering jaw using the through holes in the countering jaw. Because the clamping device has a plurality of through holes in the jaws, an accessory (such as a story stick) may be easily removably or fixedly attached to the face of either jaw by placing the accessory to the front face of a jaw and have pins or screws inserted through the rear face of the jaw to tighten the accessory onto the face of the jaw.

Abstract: A plier wrench is provided and includes a jaw that can be disengaged from the remainder of the wrench and reengaged with the remainder of the wrench while the remainder of the wrench remains in its fully assembled condition. In one form, the jaw is “reversible” and includes two different jaw surfaces that can be selectively utilized depending upon the type of workpiece that will be engaged by the plier wrench.

Abstract: The present invention discloses a manual tool having a retractable tool member, which further comprises a handle and a linkage member. The tool member is configured to be retractably moveable relative to the handle between an operating state and a retracting state under the driving of the handle and the linkage member.

Abstract: The present invention provides an open-close device, including a first member, a second member, a third member and a fourth member; the second member is rotatably connected to the first member, the third member is rotatably connected to the first member, the fourth member is rotatably connected to the second member and rotatably connected to the third member; the open-close device further includes an angle adjusting device which is provided at a joint between the third member and the first member, for adjusting the bending angle of the third member with respect to the first member.

Abstract: A socket wrench for turning sockets has a handle joined to a head having an inside wall accommodating a body including a socket holder. A permanent magnet attached to the socket holder holds a socket on the socket holder. The body has a plurality of ramps facing the inside wall of the head. Rollers engage the ramps and inside wall. A member mounted on the body engages the rollers to selectively shift the rollers relative to opposite end sections of the ramps. First and second permanent magnets on the body and member maintain the member in selected shifted positions to retain the rollers adjacent the end sections of the ramps.

Abstract: A ratchet wrench comprises a handle defining a cavity including a plurality of teeth on an inner periphery thereof, a wheel, a biasing spring ring, and at least one tooth pawl mounted in recesses formed on the outer periphery of the wheel. The wheel is rotatably mounted inside the cavity and the pawls are biased by the spring ring to engage the plurality of teeth on the inner periphery of the cavity when rotated in a first direction, and to slide over the teeth engage the plurality of teeth on the inner periphery of the cavity when rotated in a direction opposite the first direction.

Abstract: Generally continuous cylindrical body where a first set of tools and a second set of tools are arranged at the proximate and distal ends of the body to rotate into either an “L” mode or “screwdriver” mode for use. A slider engages with an internal spring for switching between two states, a first closed or locked state, retaining the tools in a stored or closed position in which they can not be opened or extended away from the body and a second open or unlocked state, where the tools are “popped-out” and away from the body due to spring forces acting on them, and they are free to be moved or extended into a position, where a 90 degree extension of position would place a tool in an “L” shaped orientation and a 180 degree extension would place a tool in a screwdriver orientation.

Abstract: A modular tool bit holder system includes an angle tool bit holder, a flexible shaft tool bit holder, and a connection assembly. The angle tool bit holder includes a housing containing a first input shaft and a first angle gear rotatably drivable about a first axis and a second angle gear and a first bit holder rotatably drivable by the first angle gear about a second axis at an angle to the first axis. The flexible shaft tool bit holder includes a second input shaft rotatably drivable about a third axis, a flexible intermediate shaft assembly bendable into a plurality of curved, straight, and curvilinear configurations, and a second tool bit holder rotatably drivable about a fourth axis, with the flexible intermediate shaft assembly configured to transmit rotation from the second input shaft to the second tool bit holder. The angle tool bit holder and the flexible shaft tool bit holder are operable separately or in combination.

Abstract: An anti-slip torque tool with integrated engagement features includes a torque-tool body, at least one pair of diametrically opposing engagement features, and an intermediate feature. The pair of diametrically opposing engagement features includes a first opposing feature and a second opposing feature and functions as engagement features around the head portion of the fastener that needs to be removed. The first opposing feature and the second opposing feature are radially distributed around a rotational axis of the torque-tool body. The first opposing feature and the second opposing feature are terminally connected to each other by the intermediate feature. The torque-tool body is outwardly extended from the first opposing feature, the second opposing feature, and the intermediate feature thus delineating an opening to receive the head portion of the fastener.

Abstract: One embodiment of a fastener holding driver with a shank 2 with a tip 1, further having a jaw assembly 27 on the shank 2. The jaw assembly 27 having a jaw 5, lock washers 12 and lock washer springs 14. The fastener holding driver can hold a fastener rigidly to the tip 1.

Abstract: A tool for retracting pistons into cylinder bores is disclosed, with a narrow gap between facing pressure plates allowing use of the tool in tight places, and ratcheting spreading of the facing pressure plates causing outward moving of the pistons, enabling work to be performed. One of the pressure plates is reversible to change the minimum narrow gap from a first width to a second width. In each of the orientations, the plates are movable towards and away from one another.

Abstract: A manual machine tool having a drive motor, a gearbox arranged on a gearbox housing and a tool holder, wherein a motor drive of the drive motor with a gearbox drive of the gearbox and a gearbox output of the drive that is rotatable about an axis of rotation are coupled to the tool holder in a manner which permits rotation, wherein the gearbox can be switched between at least two switch positions in which the speed ratios between the gearbox drive and the gearbox output are different from one another, wherein the gearbox comprises a first wheel arrangement and at least a second wheel arrangement, each of which have at least one gear wheel and a switching gear element, wherein in both gear wheel arrangements the at least one gear wheel on the switching gear element and/or the switching gear element on at least one gear wheel can roll and the respective switching gear element is mounted in a locally adjustable manner to adjust the switch settings of the gearbox on the gearbox holding structure between the at lea

Abstract: A manual machine tool having a drive motor, a gearbox and a tool holder, wherein a motor drive of the drive motor with a gearbox drive of the gearbox and a gearbox of the drive that is rotatable about an axis of rotation are coupled to the tool holder in a manner which permits rotation, wherein the gearbox has a first switching gear element and a second switching gear element, which can be adjusted in a linear manner by means of an actuating device in each case between a first setting position and a second setting position relative to the gearbox housing, wherein the actuating device is coupled to the switching gear elements and has an actuating part which is pivotably mounted relative to a machine housing of the manual machine tool about an actuating pivot axis and can be actuated manually by an operator of the manual machine tool, wherein the first switching gear element can be adjusted in a linear manner along its setting axis by means of a pivot movement of the actuating part about the actuating pivot axi

Abstract: A bicycle workstation that is removably suspended in a doorway when in use includes several elongate members that collectively provide at least three contact surfaces, and an additional elongate member that, in the illustrative embodiment, couples to a clamp suitable for clamping to a part of a bicycle. The contact surfaces are arranged such that the weight of the bicycle forces them against a wall, door frame, and moulding on both sides of the doorway, thereby securely suspending the bicycle workstation, and the bicycle clamped to it.

Abstract: A utility box or storage system that includes one or more configurable storage compartments. The utility box or storage system can comprise a compartment having a first wall that includes a guide and a second wall, and a plurality of storage units, including at least one of the plurality of storage units that implants into the compartment between the first wall and the second wall. The at least one storage unit can include a ridge that aligns with the guide. The guide can engage the ridge to guide the storage unit during implantation.

Abstract: The present invention discloses a bracket apparatus. The bracket apparatus includes a pedestal, an upright rod and a sliding assembly. The pedestal supports the upright rod; the upright rod is disposed vertically with one end installed on the pedestal; and the sliding assembly includes a clamping member, an anti-skid member, a locking assembly and a holding member.

Abstract: A teaching device for a robot, which includes a microphone, voice recognition circuity, specific-word extraction circuitry configured to extract a specific word matching with a word recognized by the voice recognition circuitry, and operation command generation circuitry configured to generate an operation command for the robot based on operational information associated with the specific word extracted by the specific-word extraction circuitry. The specific word includes a first word for specifying a pitch corresponding to a moving distance when the robot is moved in a given direction from a specified location, and a second word for specifying a moving direction of the robot, When the pitch specified by the first word is not updated and the moving direction of the robot is specified by the second word, the operation command generation circuitry generates the operation command so that the robot is moved in the specified direction at the specified pitch.

Abstract: A pneumatic robotic tool, such as grinder, sander, etc., implements passive force control and compliance using two or more double-acting pneumatic pistons distributed about a pneumatic motor within the tool housing. The multiple pistons facilitate a compact design, reducing tool stack height, as compared to prior-art, single-piston designs. In one embodiment, filtered breather vents and an air pressure equalization passage maintain ambient atmospheric pressure throughout the tool, while preventing the infiltration of dust and other particulates. In one embodiment, a hard port rigidly affixed to the tool housing is provided for at least motor supply pneumatic fluid. The motor supply air is transferred from the hard port to the pneumatic motor via a flexible pneumatic fluid tube within the tool housing. In one embodiment, the pneumatic motor discharge air is vented from the tool housing in a sealed passage that accommodates the tool compliance motion, and prevents dust infiltration.

Abstract: A method for controlling a braking device for a drive unit of a joint between two members of a multi-axis robot arm of an articulated arm robot including a brake activation device and a locking element, wherein the drive unit includes a rotor with at least two radial brake elements, wherein the brake elements are rotated such that the locking element is always exposed. Further described is a method for determining the positions of the radial brake elements.

Abstract: A method for controlling a braking device for a drive unit of a joint between two members of a multi-axis robot arm of an articulated arm robot including a brake activation device and a locking element, wherein the drive unit includes a rotor with at least two radial brake elements and the brake activation device is formed, bringing the locking element into engagement with a brake element when required in order to stop rotation of the rotor, wherein a detected position of at least one brake element is compared with a stored absolute position with respect to this brake element.

Abstract: An embodiment of the present invention provides a system in which it is possible to control a movement speed of a machining unit such that a machining load value of the machining unit is maintained to be equal to or smaller than a reference machining load value, and thus it is possible to lower a defective rate of a machining target and to improve stability of a robot.

Abstract: There is provided a robot control apparatus that controls a vertical articulated robot and is suitable for direct teaching. In the apparatus, an axis setting section sets operation axes and control axes from among the axes subjected to angle control, when performing the direct teaching of changing a position of the arm tip, while retaining a posture thereof at a target posture. The operation axes can be dominant factors when determining the position of the arm tip and are allowed to freely move according to an external force, and the control axes can be dominant factors when determining the posture of the arm tip and are controlled by an angle control section. When performing the direct teaching, the angle control section receives an input of current angles of the operation axes and the target posture to calculate command angles of the respective control axes according to inverse kinematics calculation.

Abstract: A robot system includes a robot, an image acquisition part, an image prediction part, and an operation controller. The image acquisition part acquires a current image captured by a robot camera arranged to move with the end effector. The image prediction part predicts a next image to be captured by the robot camera based on a teaching image model and the current image. The teaching image model is constructed by a machine learning of teaching image which is predicted to capture by the robot camera while the movable part performs an adjustment operation. The operation controller calculates the command value for operating the movable part so that the image captured by the robot camera approaches the next image, and controls the movable part based on the command value.

Abstract: One embodiment of the present invention sets forth a technique for controlling the execution of a physical process. The technique includes receiving, as input to a machine learning model that is configured to adapt a simulation of the physical process executing in a virtual environment to a physical world, simulated output for controlling how the physical process performs a task in the virtual environment and real-world data collected from the physical process performing the task in the physical world. The technique also includes performing, by the machine learning model, one or more operations on the simulated output and the real-world data to generate augmented output. The technique further includes transmitting the augmented output to the physical process to control how the physical process performs the task in the physical world.

Abstract: Data associated with a region, acquired by a robot may be passed to a previously trained classifier. The classifier outputs a classification label L, and a confidence score C. Responsive to determining that the confidence score C is below a threshold T, the acquired data can be added to a training data set associated with the classifier, and the classifier retrained using the training data set which include at least information from the acquired data. Responsive to determining that the confidence score C is below the threshold T, at least one candidate region having characteristic similarity to the region can be identified. Responsive to determining that the confidence score C is not below the threshold T, at least one candidate region having a different characteristic from the region can be identified. The robot may be caused to acquire data associated with the candidate region.

Abstract: According to one embodiment, an inspection system inspects equipment including a first structural object and a second structural object. The first structural object extends in a first direction. The second structural object is provided around the first structural object. The second structural object has a first surface opposing the first structural object. A first protrusion is provided in the first surface. The first protrusion extends in the first direction. The system includes a robot and a controller. The robot includes an imager. The robot moves between the first structural object and the second structural object. The imager images the first protrusion. The controller detects, from a first image acquired by the imager, a first edge portion of the first protrusion in a circumferential direction around the first direction. The controller controls a movement of the robot by using the detected first edge portion.

Abstract: Embodiments of present disclosure relates to an electronic device, a vision-based operation method and system for a robot. The electronic device comprises at least one processing unit; and a memory coupled to the at least one processing unit and storing computer program instructions therein, the instructions, when executed by the at least one processing unit, causing the electronic device to perform acts including: obtaining an image containing a tool of a robot and an object to be operated by the tool, the image being captured by a camera with a parameter: obtaining a command for operating the tool, the command generated based on the image; and controlling the robot based on the command and the parameter. Embodiments of the present disclosure can greatly improve the accuracy, efficiency and safety of an operation of a robot.