35results about How to "Welding quality is easy to control" patented technology

The invention discloses a vortex electric resistance welding device for foil micro-pieces and a welding method thereof. The vortex electric resistance welding device comprises a U-shaped magnetic core, an alternating magnetic field generating device, an upper electrode and a lower electrode, wherein the alternating magnetic field generating device is arranged on the rear portion of the U-shaped magnetic core and is used for providing alternating magnetic fields for the U-shaped magnetic core, the upper electrode and the lower electrode are oppositely arranged on the inner sides of the front ends of two limbs of the U-shaped magnetic core and are used for clamping to-be-welded foil micro-pieces, the upper electrode and the lower electrode are made of insulating magnetizers, and the U-shapedmagnetic core is used for conducting the alternating magnetic fields into the upper electrode and the lower electrode. According to the device, after the surfaces of the to-be-welded foil micro-pieces are cleaned up, the to-be-welded foil micro-pieces overlap each other in an up and down mode and are laid between the upper electrode and the lower electrode; a high-frequency oscillating circuit isstarted, the alternating magnetic fields are generated by the high-frequency oscillating circuit and are intensively gathered at the electrodes; and high-intensity vortexes are generated on the foilsin areas which are covered by the electrodes to heat work pieces, so that welding is completed under the electrode pressure. The device is suitable for ultra-thin work pieces, low in welding cost, easy to operate, easy to implement and high in production efficiency.

The invention discloses an automatic speed changer shell body used in the field of automobile spare parts. The automatic speed changer shell body comprises an inner hub and an outer hub, a first ring welding face is arranged at the bottom of the inner hub, a second ring welding face is arranged on the top of the outer hub, a plurality of welding bosses with equal heights are evenly distributed along the first ring welding face, and the faces of the welding bosses are welded with the second ring welding face. The automatic speed changer shell body can effectively enable lubricating oil to flow into the interior of the automatic speed changer shell body, conducts lubricating for a clutch assembly, prolongs service life of the clutch assembly, and simultaneously reduces labor intensity of welding the automatic speed changer shell body, and welding quality of the automatic speed changer shell body is easy to control.

The invention discloses an automatic system for producing toothed plate structures in automobile seats. The automatic system is characterized by comprising a charging mechanism, a re-positioning mechanism, a welding mechanism, a discharging mechanism and a visual detection mechanism, wherein the charging mechanism comprises a rack charging station and a connection plate charging station; the pre-positioning mechanism comprises at least one positioning table; a connection plate positioning pin which is matched with a toothed plate rotary central hole is arranged on the positioning table; the welding mechanism comprises a welding platform, a laser welding device and a magnetic clamping component; the discharging mechanism comprises a discharging mechanical arm and a conveyer belt; the visual detection mechanism judges whether the toothed plates are qualified or not through an image comparison device; unqualified products are removed; and qualified products are output by the conveyer belt. By adopting the automatic system, automatic production of the toothed plate structures is realized through charging, positioning, welding, discharging and detecting; and production yield and production efficiency are improved.