Outlet end cone turning device
A technology of air outlet and hole turning, which is applied to forming tools, mechanical equipment, engine components, etc., can solve the problems of labor, time-consuming air tightness detection, and unstable grinding.
Active Publication Date: 2018-07-27
PINGHU AICHIWEI AUTO PARTS
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Problems solved by technology
The production process has the following defects: 1. Unstable welding deformation; 2. Unstable grinding; 3. Time-consuming air tightness testing; 4. High defect rate and rework rate caused by the above three points; 5. Labor and equipment investment big, expensive
Method used
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Embodiment Construction
[0018] pass Figure 1 to Figure 3 Further description will be made on the air outlet cone hole turning device of the present invention.
[0019] An integrated production method of an engine hot end gas outlet cone, comprising the following steps:
[0020] 1) The 200T CUTTING automatic feeding line is used to feed the wafers with a shape of Φ185mm-225mm. The size of this product is Φ205mm, 40 pieces are fed per minute, and the state is double-row feeding;
[0021] 2) Apply stretching oil on the wafer, the stretching oil on the upper surface is about 0.5mm, after the 250T punch receives the wafer, punch and stretch the wafer to make the circular surface concave, similar to a hemispherical surface, and One-sided forming a big mouth;
[0022] 3) Extrude and shape it with a 250T punching machine, shape the stamped and stretched disc into the required contour, that is, the contour of the gas outlet cone 6, and form a closed small mouth contour. The angle between the small mouth an...
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The invention discloses an integrated production method for an engine hot end gas outlet end cone and a gas outlet end cone hole-flanging device. The integrated production method is characterized by comprising the following steps that (1) an automatic discharging line is adopted for feeding wafers with the shape sizes being phi 185mm-225mm; (2) the wafers are stamped and stretched, so that round faces are recessed and big openings are formed; (3) the stamped and stretched wafers are shaped to be in the contour of the gas outlet end cone; (4) excess materials on the outer edges of the big openings are removed; (5) the outer edges of the big openings are subjected to edge-flanging treatment; (6) punching is performed to form small openings; (7) the inner edges of the small openings are subjected to hole-flanging treatment; and (8) the outer edges are trimmed, and the flatness of the big openings is controlled. The integrated production method for the engine hot end gas outlet end cone and the gas outlet end cone hole-flanging device have the technical effects that the production process is simplified, production efficiency is improved and production cost is reduced.
Description
technical field [0001] The invention relates to a cone-turning device for an air outlet end. Background technique [0002] The outlet cone at the hot end of the engine is located at the first outlet of the exhaust system, where it is subjected to high heat and high vibration frequency. The requirements for the strength and fatigue resistance of the parts themselves are very high. The thinning rate of the part must be lower than 20% of the material thickness. The large opening matches the welding of the cylinder, the matching unilateral gap is 0.3mm, and the outer contour tolerance is 0.3mm. is 0.3mm, and the position tolerance of the small mouth and the big mouth of this part is 0.5mm. The overall shape of the part is similar to a hemisphere, and the angle between the big mouth and the small mouth is 100 degrees. Therefore, it is difficult to realize the state of interference with the mold when turning the small mouth. In the prior art, the gas outlet cone at the hot end o...
Claims
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IPC IPC(8): B21D53/84B21D35/00B21D37/10B21D19/08
CPCB21D19/088B21D35/001B21D37/10B21D53/84
Inventor 沈跃忠马中健胡颖杰
Owner PINGHU AICHIWEI AUTO PARTS