A mold for stamping and forming of a sleeve and its application method

A stamping forming and sleeve technology, applied in the field of stamping, can solve the problems of cumbersome process flow, low production efficiency, and low material utilization rate, and achieve the effects of reducing impact, improving production efficiency, and improving material utilization rate
CN109604473BActive Publication Date: 2020-11-27CHINA HANGFA SOUTH IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA HANGFA SOUTH IND CO LTD
Publication Date
2020-11-27

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Abstract

The invention relates to a die for sleeve punching forming. The wall thickness of the sleeve is 2mm, and a straight cylinder part and a flange part are included, the radius of a transition arc betweenthe straight cylinder part and the flange part is 2mm, the flange part is formed, the bottom surface is cut off and the straight cylinder part is shaped by one-time punching stroke on a blank, the outer diameter of a flanging of the blank is at least 4mm larger than the outer diameter of the flange part, the height of the blank is greater than or equal to the height of a sleeve, and the diameterof a cylinder part of the blank is not less than the diameter of the straight cylinder part, and an upper die assembly and a lower die assembly which are coaxially arranged are included. According tothe die for sleeve punching forming, the production efficiency and the utilization rate of part materials are improved. The invention further provides a using method of the die.
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Description

technical field

[0001] The invention relates to the technical field of stamping, in particular to a mold for stamping a sleeve and a method for using the same. Background technique

[0002] figure 1 It is a schematic diagram of a sectional structure of an engine sleeve, see figure 1 As shown, the material used in the sleeve is 1Cr21Ni5Ti, and the material thickness is 2mm. The sleeve 1 includes a straight cylinder portion 11 and a flange portion 12, the radius of the transition arc between the straight cylinder portion 11 and the flange portion 12 is 2 mm, and the outer diameter of the straight cylinder portion 11 shown is 40 mm. The outer diameter of the flange part 12 is 50mm, the bottom surface of the straight cylinder part 11 is an arc surface with a radius of 233mm, and the height from the bottom of the arc surface to the end surface of the flange part 12 is 17.5mm. The radius of the transition arc between the above flanges is only 2mm, so the processing technology o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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