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What kinds of presses are commonly used in stamping processing? What are their functions?

by:Fortuna     2021-03-03
What kinds of crank presses are commonly used in stamping processing? What are their uses? There are many types of crank presses, which can be divided into the following types according to different structures and uses: 1. Crank punch presses 1) General punch presses. General punch presses are commonly used equipment for stamping processing. , They are widely used in processes such as blanking and bending, shallow drawing and forming. If equipped with an automatic feeding and discharging mechanism or equipped with a special mold, it can also realize automatic production or complete specific processes, such as precision blanking or cold extrusion. According to the nominal pressure, general-purpose punches can be roughly divided into large, medium and small models. . Nominal pressures below 100 tons are small punches, those between 100 tons and 300 tons are medium-sized punches, and those above 300 tons are large-scale punches. According to the different bed structure, general-purpose punches can be divided into two types: open type and closed type. Open punches can be divided into single-column and double-column types. According to whether the bed can be tilted, it can be divided into tilting type and non-tilting type. According to whether the workbench can be movable, it can be divided into fixed and movable table. According to the different types of cranks, general-purpose punches can be divided into eccentric punches, crankshaft punches and eccentric gear punches. According to the number of connecting rods, general-purpose punches can be divided into three types: single-point, double-point and four-point punches. 2) Special punches. Various special punches are mainly used to complete a specific production process, and some corresponding changes have been made on the basis of general-purpose punches, or some auxiliary mechanisms and auxiliary devices have been added. According to different processing techniques, special punches are as follows: ① Deep drawing punches are suitable for deep drawing processes. According to the position of the transmission system, they are divided into upper transmission and lower transmission. According to the number of sliders, it can be divided into two types: double-acting and triple-acting. ②Fine punching press is suitable for blanking precision stamping parts. ⑧The precision press is suitable for processes such as imprinting, leveling and volumetric precision pressing. ④Metal extrusion machine is suitable for metal extrusion (cold extrusion and warm extrusion) and three-dimensional forming process. ⑤The cold heading machine is suitable for metal heading, such as cold heading of standard bolts and nuts. 3) Automatic punching machine ①Multi-station automatic punching machine is suitable for multi-station continuous automatic stamping production. ②High-speed punches. The sliders of this type of punch press have a high number of strokes per minute. It usually has an automatic feeding and discharging mechanism, which is suitable for mass production. ③Numerical control conversion die press is a kind of numerical control stand-alone automatic equipment. It can select punching dies by itself to punch holes of different shapes and sizes, with high production efficiency and short preparation period, which is suitable for small batch and multi-variety production. ④The bending machine is an automatic press that punches, cuts and bends wire or strip into stamping parts of complex shapes. 2. Shearing machine 1) Shearing machine is suitable for sheet metal cutting, and has two types: mechanical transmission and hydraulic transmission. 2) The cutting edge of the vibrating punching machine frequently vibrates to cut the sheet in a straight line or a curve, which is mostly used for single-piece small batch cutting. 3) The combined punching and shearing machine is used for cutting, cutting and punching of sheet materials. 4) The profile cutting machine is specially used for cutting profiles. Third, the sheet metal bending machine is used for the bending of wide and thin sheets. Previous post: What is the difference between flat washer, spring washer and stop washer?
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