8results about How to "High concentricity precision" patented technology

This application discloses a robot-based workpiece assembly method, apparatus, device, and readable storage medium. The method includes: controlling a robot to move to a target area near a loading table; acquiring the workpiece pose and the pose of a first assembly position; controlling the robot's end effector to move according to the workpiece pose and the first assembly position pose, so that the first assembly part on the workpiece to be registered aligns with the first assembly position; switching the robot's end effector to a force feedback-based compliant control mode, and adaptively adjusting the robot's end effector pose according to the real-time force signal from the robot's six-dimensional force sensor to assemble the first assembly part with the first assembly position; using the assembled first assembly position as a positioning reference, controlling the robot to complete the assembly of the second assembly part of the workpiece to be registered with the second assembly position on the loading table. This method employs a step-by-step assembly strategy to achieve multi-assembly position assembly of the workpiece, significantly reducing the cumulative positioning error between multiple assembly positions and improving efficiency and assembly accuracy.

This invention discloses a stator assembly and a dual-channel rotary transformer. It includes: a rotor assembly having one pair of poles and multiple pairs of poles; a stator assembly having a stator bushing capable of circumferentially mounting a first stator winding and a second stator winding, the first and second stator windings respectively corresponding to the one pair of poles and multiple pairs of poles, capable of identifying coarse and precision angle ranges; a first wiring harness assembly connecting the first stator winding and a second wiring harness assembly connecting the second stator winding; the stator bushing includes a bushing body for rotating components to pass through, the outer circumference of the bushing body having a first shoulder for mounting the first stator winding and a second shoulder for mounting the second stator winding along the height direction, the first and second shoulders being spaced apart in layers; and the projections of the first and second stator windings along the central axis of the bushing body substantially overlap.

The utility model discloses an equipment for riveting wheel axle in plastic wheel, including the positioning assembly, the top pressure subassembly and the drive assembly of being located on the frame, through the controllable output speed and pressure of drive assembly output, make top pressure subassembly in the riveting process with controllable speed and force and press into the assembly through -hole of plastic wheel of wheel axle, namely through accurate control riveting speed and pressure, avoid tearing of the assembly through -hole edge of plastic wheel caused by instantaneous impact or excessive pressure, thereby solve the plastic hair of traditional cylinder / hydraulic cylinder high -speed impact and produce, and the one -time pass rate of product is improved significantly, and the product quality is improved.

The invention discloses an oil cylinder barrel machining method and a numerical control boring machine, the numerical control boring machine comprises a machine tool, a headstock, a guide rail and an oil receiver, and further comprises an outer circle cutting device arranged between the headstock and the oil receiver, and the outer circle cutting device comprises a first moving mechanism, a second moving mechanism and a tool apron; the first moving mechanism is used for driving the second moving mechanism and the tool apron to reciprocate on the guide rail; the second moving mechanism is used for driving the tool apron to reciprocate in the direction perpendicular to the guide rail. The tool apron is used for installing a turning tool for machining the outer circle frame position. It can be seen that the outer circle cutting device is additionally arranged on the numerical control boring machine, one-time clamping synchronous machining of the inner hole of the oil cylinder barrel and the outer circle frame position is achieved, positioning errors and reference conversion errors caused by multiple times of clamping are eliminated, and the coaxiality precision of the inner hole of the oil cylinder barrel and the outer circle frame position is greatly improved; the assembling and using requirements of high-precision hydraulic oil cylinders such as coal mine hydraulic support oil cylinders are met, the machining efficiency is improved, and the overall production period is shortened.

The application relates to a laser welding device and a welding method for hollow shaft machining, relates to the field of welding, and is used for the laser welding device for hollow shaft machining, which comprises a supporting plate fixed in a machining box, a No. 1 workpiece storage box and a No. 2 workpiece storage box fixed on the supporting plate respectively, two L-shaped limiting rails symmetrically arranged and fixed at the bottom of the supporting plate, a hanging material cavity formed through the two L-shaped limiting rails and the supporting plate, the hanging material cavity being in communication with the interiors of the No. 1 workpiece storage box and the No. 2 workpiece storage box, and rigid interlocking of positioning and pressing actions being started after two workpieces are completely fed through pure mechanical linkage of a pushing plate stroke, a blanking mechanism triggering and coaxial positioning piece lifting. Only when the No. 1 workpiece is positioned and the No. 2 workpiece is sleeved into the positioning piece, the lifting mechanism drives the positioning piece into a welding station, so that positioning failure caused by insufficient feeding is fundamentally eliminated.

The utility model belongs to heavy -duty truck axle technical field discloses a kind of hub with gear ring structure, including hub body, and hub body is equipped with bearing seat hole one and bearing seat hole two, the inner wall of bearing seat hole one and the inner wall of bearing seat hole two are respectively connected with outer bearing and inner bearing, and hub body is connected with flange plate, and flange plate is equipped with tire bolt hole, and the inner wall sliding connection of tire bolt hole is equipped with connecting bolt, and hub body is equipped with several groups of gear slot, and several groups of gear slot are arranged in annular array.The utility model directly sets up gear slot in hub body and is arranged in annular array, compared with traditional split gear ring, can effectively avoid cumulative error generated due to assembly, ensure the high-precision coaxial degree of gear slot and bearing seat hole, to improve the stability and accuracy of ABS sensor signal;Meanwhile, integrated structure eliminates the risk of gear ring loosening, wear, enhances the overall strength and reliability of hub, reduces maintenance cost.

The application provides a three-dimensional measurement indexing processing method for a water turbine top cover or bottom ring guide vane shaft hole, and relates to the field of water turbine manufacturing.The method is based on advanced three-dimensional measurement technology, theoretically calculates and determines the coordinates of the center of each guide vane shaft hole, establishes a theoretical coordinate system, measures the top cover or bottom ring opening surface, base cylindrical surface and guide vane shaft hole in sequence through a laser tracker and a reflecting target ball, establishes a measurement coordinate system with the actual measurement position of the workpiece as a reference, and matches the actual measurement coordinate system with the theoretical coordinate system to analyze and obtain the real position deviation of the center of the currently measured guide vane shaft hole.The coaxiality precision of the top cover and the bottom ring guide vane shaft hole after processing can be greatly improved through the measurement of the guide vane shaft hole, and the original alignment preparation time can be greatly reduced to improve the use efficiency of the machine tool.

The invention discloses an assembling method of an oil-leakage-proof press-resistant ultrathin fan, which comprises the following steps: preparing a base, a sliding bearing, a rotor assemblage and a supporting assembly, and integrally forming a supporting column on a middle pipe to obtain the supporting assembly; riveting a supporting assembly at the mounting hole to obtain a first semi-finished product; arranging the FPC and the stator outside the first semi-finished product; the first gap and the second gap which are different in size are defined by the grooves of the supporting columns and the inner wall of the shaft core, lubricating grease of the first gap and the second gap generates high pressure, lubricating oil between the outer surface of the shaft core and the sliding bearing is prevented from overflowing from the second gap, and the sliding bearing is prevented from overflowing through the pumping effect or the labyrinth sealing effect generated by the grooves when the rotor rotates. Lubricating oil is actively prevented from overflowing and leaking along the shaft core, so that a dynamic sealing mechanism is more reliable compared with traditional static sealing, the problem that lubricating oil leaks when an ultrathin fan runs for a long time or in a high-temperature environment is solved, and stability and cleanliness of the fan in long-term running are guaranteed.