Spinning deviation-correcting method for punching-pulling steel bottle tube wall thickness
A steel cylinder tube and steel cylinder technology, which is applied to other household appliances, household appliances, applications, etc., can solve problems such as poor internal and external surface roughness, uneven wall thickness of the steel cylinder tube body, and affect the processing quality of the steel cylinder tube body. Effects of weight reduction, weight reduction, and product performance improvement
Active Publication Date: 2012-03-28
ZHEJIANG JINDUN PRESSURE VESSEL
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Problems solved by technology
However, the wall thickness of the cylinder body processed by this process is uneven (such as a steel cylinder with a wall thickness of Φ267mm and 5.8mm, the wall thickness difference reaches 2.5mm), and the roughness of the inner and outer surfaces is poor, which directly affects the processing quality of the cylinder body.
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[0017] Example 1 of the present invention figure 2 As shown, the cylinder blank 1 is sleeved on the core rod 2 of the internal spinning correction deformation tool, the core rod 2 is installed on the spindle 7, and the spindle 7 is installed in the fixed headstock 8 and can be used as the cylinder blank 1 for active rotation , The main shaft 7 can only rotate, is positioned by the bearing in the main shaft box 8 in the axial direction and can bear the axial force during spinning correction processing. The spinning wheels 3 are evenly distributed and installed on the spinning wheel fixing seat 4 centered on the rolling center line. There are six spinning wheels 3 distributed in the figure. Other numbers of spinning wheels can also be evenly distributed. 3 It can rotate with its own center of rotation, and can withstand the axial force and radial force during spinning correction. The spinning wheel 3 and the spinning wheel fixing seat 4 assembly can make a spinning correction fe...
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The invention relates to a spinning deviation-correcting method for a punching-pulling steel bottle tube wall thickness, belonging to the manufacturing technique of high pressure containers. The spinning deviation-correcting method is characterized in that a steel bottle blank (1) with nonuniform tube wall thicknesses, which is thermally processed by pulling and punching, is sleeved on a core rod(2) of an internally spinning deviation-correcting distortion tool, and a spinning wheel (3) performs relative rotation spinning and axial feed on the outer surface of the steel bottle blank. Under the spinning deviation-correcting pressure of the spinning wheel (3) and the outer surface of the core rod (2), the punching-pulling steel bottle blank (1) is coldly and axially processed into a spun and deviation-corrected tube wall (5) point by point from point to line and from line to surface by utilizing metal plasticity, and in the spinning and deviation-correcting process, the wall thickness deviation of the punching-pulling steel bottle blank (1) is corrected so as to improve the wall thickness precision of the steel bottle and the quality of the surfaces of an inner circle and an outer circle.
Description
Technical field [0001] The invention relates to a method for rectifying the wall thickness of a steel cylinder tube by punching and drawing, and belongs to the technical field of manufacturing high-pressure vessels. Background technique [0002] At present, the well-known process of making a steel cylinder tube from a metal billet is to heat the metal billet, put it into the die of a punching hydraulic press, and use a punch to punch an impassable round counterbore in the center of the metal billet to form a punching billet. The outer surface of the hole blank is also round, and then immediately put the punching blank into the receiving table of the drawing machine, the ejector rod of the drawing machine is inserted into the punching blank, and the front beam of the punching blank is installed with a drawing die frame and unloading The material device, on which can be placed multiple ring mold bases and roll mold bases, the ejector rod with the punching blank is pushed by the mai...
Claims
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IPC IPC(8): B21D51/24B21D22/16
Inventor 马夏康周建灿杨学锋葛建星张余斌戴顶峰
Owner ZHEJIANG JINDUN PRESSURE VESSEL