Fine punching mold frame
A technology of fine punching die and mold base, which is applied in the field of tooling and mold in sheet metal fine punching technology, which can solve the problems of high cost, punching and blanking, etc., and achieve the effect of low cost, adjustable elasticity and good rigidity
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[0025] Example 1:
[0026] The blanking process of the one-way blanking die set and die structure of the thin plate (see Figure 5 ): A kind of fine punching die base, on the upper arm of the U-shaped die base body 1, an upper press head 11, an upper gland 9, a pre-compression coil spring 15, a blanking die sleeve 3 and a punch handle 12 are installed, and the U-shaped die The lower arm of the frame body 1 is equipped with a worktable 2, and the blanking die sleeve 3 is movably fitted on the upper arm of the U-shaped die carrier body 1 through the ball bearing 5 and the fixed bushing 7; the punch handle 12 is used as The plunger and the upper hydraulic chamber 13 formed by using the blank holder 3 as a hydraulic cylinder are connected with the upper gas-liquid high-pressure sealed container 19.
[0027]Fasten the upper punch 37 on the punch shank 12, install the blank holder 36 on the blank holder 3, place the female die 38 on the worktable 2, and then push the upper punch 37 thro...
Example Embodiment
[0028] Example 2:
[0029] The fine blanking die set structure and the blanking process of the opposite blanking of thicker plates (see figure) 6: The lower hydraulic cylinder 30 is installed in the hole of the lower arm of the U-shaped die set body 1, and the plunger 32 of the lower hydraulic cylinder is connected to the lower A sealing ring 33 is arranged between the hydraulic cylinders 30, and the limit card cover 34 is installed above the plunger 32 and fastened with screws above the lower hydraulic cylinder 30. The lower hydraulic cylinder 30 filled with liquid is in close contact with the high-pressure steel pipe 28. , The other end of the high-pressure steel pipe 28 is in close contact with the bottom of the lower gas-liquid high-pressure sealed container 22, the lower gas-liquid high-pressure sealed container 22 is filled with high-pressure liquid 25, and the upper gas-liquid high-pressure sealed container 22 is provided with inlet and exhaust valves 24 , The pressure in t...
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