48results about How to "Fast riveting" patented technology

A pneumohydrualic self-piercing riveting machine comprises a pneumohydraulic control system, a self-piercing riveting mechanism, a support seat and a circuit control system. The pneumohydraulic control system comprises a pneumohydraulic cylinder, a compressed air pump and various control valves. The self-piercing riveting mechanism comprises a pneumohydraulic cylinder support, an upper punch, a lower punch, a C-shaped frame and a mold etc. The pneumohydraulic control system is connected with the self-piercing riveting mechanism through the pneumohydraulic cylinder and is arranged on the support seat integrally. The pneumohydraulic self-piercing riveting machine has the advantages of simple structure, low production cost, small structure-space occupation area, safety, reliability and the like. The circuit control system is simple and easy to realize, and convenient to operate. The pneumohydraulic self-piercing riveting machine has the advantages of full-automatic riveting process, high riveting speed and efficiency and continuous operation. By replacing the punches and the mold, the pnumohydraulic self-piercing riveting machine can be used for riveting of tubular rivets, tubular rivets with flanges, oval tubular rivets and no rivets.

The invention discloses a riveting head mechanism. The riveting head mechanism comprises a bottom plate, a bracket, a track, a track oil cylinder, an inserting plate oil cylinder, an inserting plate, a riveting head oil cylinder, a hammerhead and a sensor; the track is arranged on the bottom plate; the track oil cylinder is arranged behind the track; the inserting plate oil cylinder is fixed on the bottom plate; the inserting plate is arranged at the front end of the inserting plate oil cylinder; the bracket is arranged on the bottom plate; the riveting head oil cylinder is arranged on the bracket; the hammerhead is arranged below the riveting head oil cylinder; the sensor is arranged on the bracket. Through adoption of the mode, the riveting head mechanism disclosed by the invention has the advantages of high reliability, accurate positioning, compact structure, high riveting speed, good riveting quality, automatic operation, convenience in use, low price and the like; meanwhile, the riveting head mechanism disclosed by the invention has a wide market prospect in the chain transmission manufacturing market.

The invention relates to an inside riveting die of a hydraulic clutch bearing gland. A lower fixing plate is arranged on the upper end face of a bottom plate. A lower die fixing plate is arranged on the upper end face of the lower fixing plate. A split lower die insert is embedded in the middle of the upper end face of the lower die fixing plate. A cylindrical protrusion is arranged in the middle of the upper end face of the split lower die insert. The outer ring of the upper end of the cylindrical protrusion is bent outwards. A locating through hole is formed in the cylindrical protrusion of the split lower die insert. The split lower die insert is evenly divided into multiple fan-shaped columns. The lower portion of each column is transversely provided with a reset spring. A core rod moving up and down is arranged above the locating through hole in the split lower die insert. The lower end of the core rod is of a circular truncated cone columnar structure matched with the locating through hole, wherein the diameter of the lower end of the structure is smaller than that of the upper end of the structure. The inside riveting die of the hydraulic clutch bearing gland has the beneficial effects of being simple in structure, convenient to use, capable of being suitable for hydraulic release bearings of different models, increasing the riveting speed of the bearing glands greatly and meanwhile, improving the riveting strength of the glands and the like.

The invention discloses a digital display type high-low pressure pump riveting machine hydraulic pressure station and a riveting process, and belongs to the field of machining. The digital display type high-low pressure pump riveting machine hydraulic pressure station comprises an oil tank, a low pressure oil pump set loop, a high pressure oil pump set loop, a cooling device and an electrical control gear. The low pressure oil pump set loop comprises a first motor, a low pressure oil pump and a low pressure overflow valve assembly; a low pressure oil way at the output end of the low pressure oil pump is divided into two ways; and one way is connected to an oil return tank through the low pressure overflow valve assembly, and the other way is connected with a rivet pincer oil cylinder through a first one-way valve and an electro-hydraulic directional control valve. The high pressure oil pump set loop comprises a second motor, a high pressure oil pump and a high pressure overflow valve assembly; a high pressure oil way at the output end of the high pressure oil pump is divided into two ways; and one way is connected to the oil return tank through a second one-way valve and the high pressure overflow valve assembly, and the other way is gathered with the lower pressure oil way through the second one-way valve to be connected with the rivet pincer oil cylinder through the electro-hydraulic directional control valve. By means of the digital display type high-low pressure pump riveting machine hydraulic pressure station and the riveting process, through ingenious combination of the low pressure oil pump and the high pressure oil pump, the aim of riveting of rivets is achieved; the structure is more simplified and advanced; and in addition, the riveting speed is high, generated heat is less, and noise is low.