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Special tapping machine for steel sleeve

Special tapping machine for steel sleeve

35. HRB400 steel bar straight thread sleeve connection can also be used for tapping of standard or non-standard nuts in the hand machinery industry. It has the advantages of simple operation, convenient construction, fast processing speed, no pollution, and energy saving. The quality of the sleeve can reach the standard of Class I in JG107-2003 "General Technical Regulations for Mechanical Connection of Steel Bars". It is the most widely used and popular sleeve tapping machine in the construction and engineering fields. The performance of special tapping machine for sleeve: DGS-40 special tapping machine for sleeve can make the threaded sleeve tap one-time forming, its thread precision is better than the 6H precision requirement specified in JG163-2004, and can realize The diameter and length of a tapping molding. This machine adopts an external cutting fluid device, which has better cooling and lubricating effects. When processing a sleeve of one specification, it can continuously process a large number of threaded sleeves of the same specification only by changing the tap shank. The operating procedure is greatly simplified and improved. production efficiency. This machine can process positive and negative threads and variable diameter threads according to the technical needs of the construction site and other requirements. DGS-40 sleeve special tapping machine structure: consists of cycloid reducer, transmission mechanism, shaft lifting mechanism, gearbox, special material clamping device, material receiving and releasing device, cooling system, electrical control box, control system, etc. Partial composition. It is an ideal processing machine for processing steel pipes with positive and negative thread pitch and deep hole thread products. Such as steel pipe joints, steel casing joints. All can be processed and produced by this machine tool, and high-efficiency and high-quality products can be obtained. Machine Features: 1. The feed pitch of this machine tool depends on the self-weight feed of the feed spindle to adapt to various thread processing. 2. When the machine tool is processing the product, the tap is fed at its own pitch to ensure the dimensional error of the pitch. The smooth transmission of the spindle ensures the roughness of the machined surface. After the tap passes through the workpiece, it automatically falls, The non-reversing of the spindle can ensure that the chips will not damage the smoothness of the machined surface. 3. Using this machine tool to process steel pipe thread products can increase the output by 2-3 times compared with other machine tools, and can replace the processing efficiency of vertical drills. Since 2 stations run at the same time, It can replace the processing efficiency of 2 vertical drills and save 1 operator. 4. This machine tool has the characteristics of small size, convenient installation, simple operation, stable transmission and easy maintenance. 5. The tapping spindle of the machine tool can be raised and lowered arbitrarily during operation, so it can avoid damage to the tool due to operation or failure and reduce waste products. The main parameters: Main power supply: 3-phase AC 380V Control voltage: AC 36V Pump power supply: 3-phase AC 380V pump motor 60W Main motor power: 4KW speed 1440r/min Processing speed: rate 220r/min 265r/min Processing sleeve specifications: φ14-φ40mm The effective length of the internal thread of the processing sleeve is greater than 100mm Dimensions: 1200×1000×2500mm Gross weight: 780KG Precautions: 1. The cooling liquid must be water-soluble cooling liquid. It is strictly forbidden to use oily cooling liquid, let alone oil instead. 2. It is strictly forbidden to process sleeve threads without coolant. 3. The ends of the steel pipes to be processed should be flat and must be cut with a sawing machine. 4. The feed should be uniform during the initial cutting, and do not advance rapidly to prevent the tooth shape of the tap from cracking. 5. The lifting mechanism of the rotating shaft should be cleaned and oiled regularly, and whether the machine is safe should be tested before starting each shift. 6. Iron filings should be cleaned up in time. 7. The cooling liquid tank should be cleaned every half month. 8. The reducer should be refueled regularly to maintain the specified oil level. 9. The special tapping machine tool for sleeve should be maintained regularly. 10. The chassis must be connected to zero or ground reliably.

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How to distinguish plain round steel bar and ribbed steel bar?

The difference between plain round steel bar and ribbed steel bar is mainly whether there is rib on the surface. This rib can be longitudinal force or transverse rib. If it is a steel bar with two longitudinal forces or a transverse rib evenly distributed along the length. However, for small-scale steel, cold-rolled ribbed steel bars fall into this category and are mainly used in the skeleton of reinforced concrete building components. If it is a steel bar with a certain mechanical strength or bending deformation, if the process welding performance is relatively strong, it is mainly used for domestic cold-rolled ribbed steel bars. The transverse ribs are mostly spiral, herringbone, and crescent-shaped steel bars. . From the perspective of specifications and appearance, the specifications are standard grades, the diameter of steel bars is expressed in nominal terms, and in terms of quality, it is expressed in nominal weight. If the specified length and the corresponding index tolerance come Said that the difference is also different, most of them are measured by the national standard, and generally consist of cold-rolled ribbed steel bars with different diameters of 6, 8, 10, and 12 mm. From the point of view of the quality of the surface, it can be seen that the end of the steel bar is cut very straight, and there will be no cracks on the surface, or there will be scars on the spot, and there will be no harmful material defects. In addition to the differences in specifications and surface quality, there are certain differences in the deviation of external dimensions, etc., which must be within the allowable value of the difference.

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my country's energy-saving and environmental protection construction machinery industry will face important opportunities

It is understood that my country's energy efficiency is only 26.9% of that of the United States and 11.5% of Japan. It is one of the countries with the most serious waste of natural resources in the world, and construction machinery internal combustion engine products are the second largest industry in addition to the automobile industry. Due to Its emission density is high, and its emission index is inferior to that of automobiles, so the pollution to the environment is more serious. Qi Jun, president of the China Construction Machinery Industry Association, said that my country is "the largest construction site in the world", and engineering construction drives the rapid development of the construction machinery industry. Due to the relatively loose emission requirements for construction machinery products, the market is flooded with high-emission products, which have become a heavy burden on my country's current environment. Therefore, the industry calls on the domestic construction machinery industry to take the road of energy conservation and environmental protection. At the same time, some people point out that , my country's energy-saving and environmental protection construction machinery industry will face important opportunities. According to the latest analysis report released by the China Environmental Protection Machinery Industry Association, a series of policies to support the development of the environmental protection industry will enter the implementation stage throughout 2013, and the strategic opportunity period for the energy-saving and environmental protection construction machinery industry will be highlighted. It is expected that the growth rate of the entire industry will exceed 25%. The "Twelfth Five-Year Plan for Industrial Energy Conservation" shows the overall goal of industrial energy conservation: by 2015, the value-added energy consumption of industries above designated size will drop by about 21% compared to 2010. The strict requirements put forward by the state make construction machinery enterprises have to put energy conservation and environmental protection in an important position in their development strategies. In addition, at the moment, new urbanization construction has become a source of economic growth for a long period of time, which will have a very positive effect on boosting the energy-saving and environmental protection construction machinery market. Statistics show that the total investment in environmental protection in 2012 was more than 600 billion yuan, a year-on-year increase of 25%, which was the year with the highest investment growth rate in the five-year plan. In 2012, under the dual effects of national policy support and market demand, the economic operation of the environmental protection equipment manufacturing industry was in good shape, and continued to maintain a stable growth rate and profit margin. In 2012, the total industrial production value and industrial sales output value of the 1063 environmental protection equipment manufacturing enterprises (including the manufacturing of special equipment for environmental protection and the manufacturing of special environmental monitoring instruments) that entered the statistical caliber were 191.379 billion yuan and 187.947 billion yuan respectively. An increase of 19.46%, industrial sales output value increased by 19.58%. Analysts pointed out that the economic operation of the industry in recent years has highlighted the strong policy orientation of the environmental protection equipment manufacturing industry, which is an industry characteristic with a strong ability to resist risks. Some experts predict that in order to complete the task of energy conservation and emission reduction, the construction machinery industry will become an important sector in my country's promotion of energy conservation and emission reduction in the next 5 to 10 years, and its market potential cannot be underestimated.

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Operator's certificate for rebar connection

Shanghai Hufeng Machinery Co., Ltd. mainly focuses on construction machinery, building materials, construction engineering, and welding construction engineering. It is a construction unit with Shanghai's first-level professional qualification. The rib stripping and rolling straight thread connection technology of steel bars is a new technology for steel bar connection that is promoted by the Ministry of Construction. It has the characteristics of high joint strength, simple and convenient operation, safety and environmental protection. The quality of the steel bar rib stripping and rolling straight thread machine and sleeves produced by the company has reached the domestic leading level, and is widely loved and respected by customers. The company has a professional steel bar connection technician with superb technology and high efficiency, which has been unanimously recognized by everyone.

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The location of the mechanical connection

Rebar joints should be set up with a small force of staff. The same longitudinal tendon should not be established by two or more joint forces. The connecting end bar is bent by not less than 10 times the bar diameter from the starting point.

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Fabrication and Tensile Strength Measurement of Straight Thread Sleeve Connection of Steel Bar

The following two sampling methods are recommended for the selection of samples for manufacturing process inspection. 1. Randomly select 3 steel bars in the inspection batch, and then cut each steel bar into 3 sections, a total of 9 bars, numbered with the same material, 3 bars for tensile strength value inspection, and the rest are butted in pairs for sleeve Connection check. 2. Randomly select 6 steel bars in the inspection batch, connect them in pairs, and mark them after cutting. First carry out the tensile test of the connecting piece, and for the test piece of the base metal extension, select the steel bar of the same number for inspection according to the identification, and judge the process inspection result according to the standard

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