4results about How to "Reduce welding errors" patented technology

The utility model discloses a kind of suitable for shear type lifting machine welding production line, including total feeding station, drum conveying line, first welding station, second welding station, third welding station, total unloading station, total feeding station is transported to the transmission on drum conveying line by shear type lifting machine spare;Through first welding station, the welding of the tooling after feeding is carried out, then is transported to second welding station by drum conveying line;Through second welding station, the welding of the tooling after feeding is formed, then is transported to third welding station by drum conveying line;Through third welding station, the welding of the tooling after feeding is formed, then continues transmission to total unloading station by drum conveying line;Total unloading station is transferred from drum conveying line by the finished product of welding formation.The efficiency and flexibility of welding operation are improved by reasonable station layout and flexible transmission system, adapt to a variety of welding needs, with good market application prospect.

The utility model relates to a line marking tool technology field for welding, and disclose a kind of wheeled welding leg size line marking device, including base and the supporting rod being set on base, the line marking arm being capable of overturning along longitudinal direction relative to base is provided in the top of base, line marking arm is located above supporting rod and can overturn around its axis, and one end of line marking arm is provided with line marking head for marking;The fastener for locking line marking arm is provided at the both sides of supporting rod, one end of fastener is inserted into base by passing through line marking arm and screwing, and the walking wheel for supporting base is provided below base.Line marking arm can rotate around supporting rod axis, realize the longitudinal overturning relative to base, to complete the height adjustment of line marking head at the end of line marking arm, and line marking arm is firmly locked on base by fastener, compared with the mode of the existing line marking pen is raised by cushion block, effectively improve the line marking precision, efficiency and stability.

A kind of positioning tool for tunnel initial support reinforcement, including two connecting sliding pipes and two vertical main pipes, two connecting sliding pipes are connected to the connecting plate of left and right sides of tunnel steel arch respectively, the upper end of two vertical main pipes is connected to two connecting sliding pipes respectively, multiple positioning branch pipes are arranged at the outer side of vertical main pipe at intervals, transverse reinforcement is placed on the upper side of two positioning branch pipes, horizontal connecting plate is connected to the outer side of vertical positioning main pipe, two horizontal connecting plates are connected to each other by first connecting piece, multiple clamping plates are arranged at the length direction of one side of horizontal connecting plate at intervals, longitudinal reinforcement is inserted into clamping plate.The design fixes multiple transverse reinforcement by positioning branch pipe, simultaneously, multiple longitudinal reinforcement is fixed by clamping plate, since the distance of each positioning branch pipe and clamping plate is set in advance, the spacing between each transverse reinforcement and each longitudinal reinforcement is fixed, so that the welding error of reinforcement mesh sheet is smaller.

The positioning device for ship deck welding is applied to the technical field of welding positioning and comprises a bottom plate, a pair of supporting seats and a motor are fixedly connected to the upper end face of the bottom plate, rotating shafts are rotatably connected to the interiors of the supporting seats, and the two ends of each rotating shaft extend to the outer sides of the supporting seats. One ends of the pair of rotating shafts are fixedly connected with transmission assemblies, through mutual cooperation of the pair of transmission assemblies and the pair of fixing assemblies, clamping and fixing of decks of different sizes are achieved, the stability during welding is improved, and after single-face welding of the decks is completed, the welding efficiency is improved. When the deck is welded, the rotating shaft can drive the transmission assembly and the fixing assembly to rotate through the motor, overturning of the deck is achieved, and then double-face welding work can be conducted on the deck under the condition that the deck does not need to be disassembled.