32results about How to "Reduce welding labor intensity" patented technology

The invention discloses an automatic material taking device for welding of an automobile door frame. The automatic material taking device for welding of the automobile door frame is safe in operation. The automatic material taking device for welding of the automobile door frame comprises a clamp support and a material taker frame which is connected with the clamp support. A sliding rail is arranged on the clamp support. A support sliding block is arranged on the sliding rail in a sliding mode. Locating blocks are symmetrically arranged on the two sides of the support sliding block. A locating groove is formed in each locating block. The bottom of the support sliding block is connected with a piston rod of a lifting cylinder. One side of the support sliding block is connected with a piston rod of a sliding cylinder. The bottom of the support sliding block is respectively arranged on guiding rods through sliding sleeves in a sliding mode. The automatic material taking device for welding of the automobile door frame has the advantages of being safe in operation, high in automatic degree, capable of greatly reducing the welding cost and relieving the labor intensity, high in working efficiency, and capable of guaranteeing the physical health of an operator.

The invention discloses an angle welding process for automatic submerged-arc welding. The angle welding process comprises the following technological steps: lifting and turning an assembled corrugated bulkhead; and performing flat fillet welding by an automatic submerged-arc welding machine. During assembly and welding, an assembly tool and a welding tool are respectively arranged to guarantee an included angle between wall plates of the corrugated bulkhead and to prevent welding deformation. The submerged-arc welding and flat fillet welding are adopted for the large-sized corrugated bulkhead, the welding penetration and bath entry are facilitated. The number of weld passes is effectively reduced. The surface molding effect is excellent. A ship is low in welding deformation. The welding labor intensity of a welder is greatly reduced. The repairing and grinding workload of weld joints is greatly reduced. The manual cost is cut. The consumption of a weld material is low. The production efficiency is greatly improved.

Disclosed is a production technology of a fully-quenched high-hardness scale gear. The production technology of the fully-quenched high-hardness scale gear is characterized by comprising the following steps of selecting gear materials; determining a basic process route in the machining process of a gear ring, an accessory plate and a hub; machining the gear ring, the accessory plate and the hub respectively; and machining the gear wholly. The production technology of the fully-quenched high-hardness scale gear has the advantages that the welding labor intensity is reduced, the production efficiency is improved, and the welding quality stability is ensured; and the production technology is suitable for being used and popularized in a large-area manner.

The invention discloses a construction method of a steel-jacketed steel steam direct burial pipeline. The method comprises the following steps of construction preparation, pipeline transportation andhoisting in place, working pipe butt-joint installation, working pipe butt-joint welding, working pipe welded junction inspection, working pipe hydraulic pressure test, outer protection pipe and working pipe temporary fixing and dismounting, working pipe welded junction corrosion prevention and heat preservation, outer protection pipe joint welding, outer protection pipe joint welding inspection,outer protection pipe joint corrosion prevention, pipe ditch backfilling, and working pipe purge. According to the method, the whole set of mature and systematic construction method is continuously improved in the actual installation and construction process, the construction method is detailed in content, reasonable in standard requirement preparation, simple in process and reasonable in procedure, compared with conventional installation, the construction period is shortened, equipment machine-team use is saved, consumed materials are saved, the working efficiency is improved, material lossesare correspondingly reduced, the construction cost is reduced, civilized construction is facilitated, improvement of environmental protection measures is facilitated, labor, equipment and material cost are saved, and good economic benefits, social benefits and environmental benefits are generated.

The invention discloses a repairing process of a chromium-molybdenum steel tube bundle and a tube plate, and belongs to the field of repairing of chromium-molybdenum steel. The process comprises a tube bundle repairing process and a tube plate repairing process. A leaking point is determined firstly, then the tube bundle and/or the tube plate are repaired according to the steps of preheating of adjacent tube openings, welding and post-welding treatment of the adjacent tube openings. The adjacent tube openings are pre-heated and subjected heat post-welding treatment through an oxygen-acetylene inner flame, a nickel base welding wire serves as welding materials, the heating and temperature control conditions on the repairing site can easily meet the requirements of the repairing process, an obtained welding joint is high in quality and not prone to new cracks, the tube openings replace crack-stopping holes in the tube plate repairing process, cracks are not prone to spread, and the welding cost and labor intensity are effectively reduced.

The invention, which belongs to the field of building structural engineering, relates to a concrete-filled steel tubular column-concrete-filled steel tubular beam joint connection structure. Rectangular openings are formed around an outer-column steel tube of a concrete-filled steel tubular column; one end of each of four concrete-filled steel tubular beams including a front concrete-filled steeltubular beam, a rear concrete-filled steel tubular beam, a left concrete-filled steel tubular beam, and a right concrete-filled steel tubular beam is against one rectangular opening correspondingly; and T-shaped reinforced plates are welded to the upper walls and the lower walls of outer-beam steel tubes of the left concrete-filled steel tubular beam and the right concrete-filled steel tubular beam and are also welded to the outer-column steel tube of the concrete-filled steel tubular column body. The concrete-filled steel tubular column is connected with perforated end plates at the front wall and rear wall of the outer-column steel tube by bolts respectively. T-shaped reinforced plates are welded to the upper walls and the lower walls of outer-beam steel tubes of the front concrete-filled steel tubular beam and the rear concrete-filled steel tubular beam and are also welded to perforated end plates simultaneously. Triangular pieces are welded to all adjacent T-shaped reinforced plates and thus the T-shaped reinforced plates of all adjacent outer-beam steel tubes are connected into one. The force can be transmitted clearly; the on-site welding work load is low; the manufacturing and construction become convenient; the engineering quality is easy to control; and the work hours are saved.

The invention discloses a subsection division method for a cargo hold area of a thin film type LNG (Liquefied Natural Gas) ship. The subsection division method comprises the following steps of: 1), dividing all key nodes W1-W5 on the inner shell wall of a cargo hold into segments; 2), arranging a large joint between the two cargo compartment areas in a transverse compartment; 3), dividing each transverse compartment independently; and 4), dividing a liquid dome area into independent sections. The subsection division method is more scientific and reasonable, greatly reduces labor intensity, is good in implementation effect, the cargo space building precision of a cargo space area and structural centering precision of key nodes can be guaranteed and the method has the advantages of reducing dock carrying and hoisting, reducing assembling and welding workload of dock large joints and paint damage amount; dock and wharf fitting-out work forward movement is achieved to the maximum extent, ship launching integrity is improved, and the dock period is further shortened.

The invention discloses a welding automatic moving device of an automobile door frame. The welding automatic moving device of the automobile door frame comprises a bottom plate, a movable plate limiting block, a supporting pulley bearing, a movable plate, a limiting plate, a ball bearing, a bearing shaft, an ejecting opening air cylinder, a piston rod, a connecting joint, a pin and a connecting block, wherein the movable plate and the limiting block are installed on the bottom plate, the supporting pulley bearing is installed on the bottom plate, the movable plate is installed on the supporting pulley bearing, the limiting plate is installed on the bottom plate, the ball bearing is installed on the bearing shaft, the bearing shaft is installed on the movable plate, the ejecting opening aircylinder is installed on the bottom plate, the piston rod is installed on the ejecting opening air cylinder, the connecting joint is installed on the piston rod, the pin is installed on the connecting block, and the connecting block is installed on the movable plate, so that the movable radian of the movable plate is consistent with the welding radian of a product. The welding automatic moving device for the automobile door frame has the advantages that the adjusting is convenient, the positioning is accurate, the movable plate can move back and forth, the automation degree is high, so that the welding cost and the labor intensity are reduced, and the production efficiency of equipment and the stability of the equipment are improved.

The invention relates to the technical field of welding of seat metal frames and particularly discloses welding equipment. The welding equipment comprises a first driving device and an arc welding mechanical arm, an installation frame is arranged at the driving end of the first driving device, a first station, a second station, a third station and a fourth station are arranged on the installationframe and are distributed in a rectangular shape on the installation frame, a seat H-shaped frame fixing device, a seat frame fixing device, a seat driving pipe frame fixing device and a seat bottom frame fixing device are arranged in the first station, the second station, the third station and the fourth station respectively, and an arc welding free end of the arc welding mechanical arm corresponds to contact positions of all workpieces on the seat H-shaped frame fixing device, the seat frame fixing device, the seat driving pipe frame fixing device and the seat bottom frame fixing device. Thewelding equipment has the advantages of being accurate in welding position, reliable in quality, high in welding efficiency and small in labor intensity.

The invention relates to the welding technical field of seat metal frameworks, and specifically discloses a seat frame welding mechanism used for a seat iron stand and welding equipment. The seat frame welding mechanism comprises a first mounting plate, wherein a first rod drive gas cylinder and a first fixed plate are fixedly arranged on the first mounting plate; the end part of the first drive rod of the first rod drive gas cylinder is equipped with a first supporting part; the two ends of the first supporting part are equipped with first sunken parts; first connecting pieces are placed in the first sunken parts; two second defining blocks are arranged on the first mounting plate, second defining slots are formed in the second defining blocks, and second rod parts are placed in the second defining slots; two first gas cylinders are arranged on the first mounting plate, and gas paths of the first gas cylinders are equipped with two first clamping plates; at least one first positioningrod is arranged on the opposite surfaces of two first clamping plates, and first mounting sheets are fitted on the first clamping plates. The seat frame welding mechanism has the characteristics of an accurate welding position, reliable quality, relatively high welding efficiency and relatively small labor intensity.

The invention relates to the technical field of welding of seat metal frames, and particularly discloses an underframe welding mechanism for a seat iron frame and welding equipment. A fourth installation plate is included; the hole wall of a seventh through hole is provided with a seventh installation block, and a seventh connection piece is placed on the seventh installation block; the fourth installation plate is provided with two eighth installation blocks, the eighth installation blocks are provided with eighth installation grooves, and eighth rod pieces are placed in the eighth installation grooves; eighth corner sheets are placed in the positions, close to the two ends, of each eighth rod piece; a tenth rod piece is placed on the seventh installation block; the bottom of a first installation plate is provided with two seventh air cylinders; two seventh clamping plates are arranged at an air duct of each seventh air cylinder, the opposite surfaces of the seventh clamping plates are provided with seventh positioning rods; shell of the seventh air cylinders are provided with seventh partition plates, and seventh installation sheets are attached to the seventh clamping plates; and eighth fixing blocks are provided with eighth fixing grooves. The underframe welding mechanism has the characteristics of accurate welding positions, reliable quality, high welding efficiency and low labor intensity.