336 results about "Shot welding" patented technology

The invention is suitable for the technical field of welding devices, and provides a printing plate roller welding device which comprises a device body, a movable sliding base, a first supporting frame, a second supporting frame, a welding machine table and welding equipment and further comprises a rotating mechanism, a centering clamping mechanism and a centering alignment mechanism. The centering and aligning mechanism comprises a mounting assembly, a mounting support, a centering and aligning assembly and an adjusting assembly, and the centering and aligning mechanism can complete rapid centering of the printing plate roller and the roller core, ensure the coaxiality of the printing plate roller and the roller core and reduce manual intervention through a movable sliding seat and a rotating mechanism, and can also drive the end cover and the printing plate roller to intermittently rotate, so that the precision of the printing plate roller is improved. The centering and clamping mechanism can complete centering and clamping of the printing plate roller and ensure that the two ends of the printing plate roller are located at the concentric position through a movable sliding base and a rotating mechanism, and the clamped printing plate roller can be driven to rotate circumferentially. And circumferential continuous welding of the end part of the printing plate roller by welding equipment is realized.

The invention relates to the technical field of image data processing and intelligent control, and discloses a patch board spot welding track intelligent control method and system based on visual perception. According to the method, synchronous image streams are collected through a binocular vision sensor, and epipolar correction image pairs are generated through timestamp synchronization, ROI extraction and epipolar correction processing; calculating a disparity map by adopting a stereo matching algorithm, and constructing a compensated three-dimensional point cloud model based on deformation vector field fusion multi-frame point cloud data of a radial basis kernel function; welding spot position error vectors are generated by extracting welding spot feature points and performing spatial filtering optimization; and carrying out inverse kinematics calculation on the mechanical arm by adopting a damping least square method, carrying out safety constraint optimization in combination with prospective collision risk assessment and real-time pose data, and generating a trajectory compensation instruction. According to the method, the problems of dynamic deformation compensation and motion safety in patch plate welding are solved, the submillimeter welding spot positioning precision is achieved, and the welding quality stability and the system robustness are improved.

A friction stir spot welder includes: a pin; a shoulder; a rotary driver; a tool driver; and circuitry that performs an operation of driving the rotary driver and the tool driver such that the pin and the shoulder press a workpiece by a first pressing force while rotating at a first rotational frequency, and after the operation, performs an operation of driving the rotary driver and the tool driver such that a tip of the shoulder in a rotating state is pressed in to a first position. The first position is a position corresponding to 46% or more of a thickness of the workpiece from a front surface of the workpiece. A press-in speed of the shoulder until the shoulder reaches the first position is a constant speed.

A first member formed of a thermoplastic resin molding mixed with a fiber material and a second member formed of a molding containing at least a thermoplastic resin are welded by friction stir spot welding using a double-acting tool for friction stir spot welding. An overlapping part between the first member and the second member is formed, and the tool is disposed against the overlapping part while the pin and the shoulder are rotated about the rotation axis. The pin is plunged into the overlapping part, and friction stir is performed to cause extension fibers to remain around a plunging region of the pin while the shoulder is retracted to release an overflow material. The shoulder is brought closer to the overlapping part to wrap the extension fibers into the overflow material when the overflow material is backfilled while the pin is retracted from the overlapping part.

The utility model relates to a forward and reverse plugging USB socket, which comprises a plurality of conductive terminals, an insulating body for fixedly holding the conductive terminals into a whole, a shielding sheet integrally formed on the insulating body, and a metal insert and a metal tail cover which are formed in the insulating body, the insulation body comprises a base part, a wrapping part formed by forward extension from the base part, a butt joint tongue part formed by forward extension from the wrapping part and a tail part formed behind the base part, and the shielding sheet comprises a first shielding sheet and a second shielding sheet which are respectively formed on the upper side and the lower side of the insulation body. Each shielding sheet comprises a lap joint part which is fixed and exposed on the surface of the wrapping part and a spot welding part which is formed by extending backwards from the lap joint part, and the spot welding part of the first shielding sheet extends to the tail part and is welded and conducted with the metal tail cover; and the spot welding part of the second shielding sheet extends to the base part and is welded and conducted with the metal insert. The forward and reverse plugging USB socket has good shielding performance.

The invention discloses a valve body machining and welding device, and relates to the technical field of valve body machining, the valve body machining and welding device comprises a base, the top of the base is provided with a cover body, the top of the cover body is provided with a controller, the center of the top of the base is provided with a positioning mechanism, and the top of the cover body is provided with an electric welding equipment main body; a shell with a downward opening is arranged on the inner wall of the top of the cover body, a welding mechanism is arranged on the inner side of the shell, a valve body workpiece and a flange plate workpiece can be located on the same axis after being positioned, dislocation caused by butt joint of the valve body workpiece and the flange plate workpiece is avoided, meanwhile, through multi-point-position rotating welding, welding efficiency is improved, and welding quality is improved. It is guaranteed that each time of spot welding is not affected by the heat of the last time of welding, and the welded welding face is smooth and attractive.