Rapid shape adjusting method for multi-point forming die
A multi-point forming and mold technology, which is applied in the field of mechanical processing, can solve the problems of long movement distance of basic body units, affecting the efficiency of shape adjustment, and time-consuming calibration process, so as to reduce time-consuming, improve efficiency, and save production the effect of time
Active Publication Date: 2022-02-18
CHENGDU AIRCRAFT INDUSTRY GROUP
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Problems solved by technology
It is also necessary to calibrate the zero position of each basic volume unit one by one in advance, store the calibrated data in the database, and calculate the motion value of each basic volume unit based on the calibration data before each shape adjustment. The calibration process is very time-consuming; At the same time, in this process, the movement distance of the basic body unit becomes very long. The multi-point mold is originally composed of hundreds or thousands of basic body units. If each basic body unit is adjusted in this way every time, Then the total shape adjustment time will become very long, seriously affecting the efficiency of shape adjustment
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[0043] The present invention is described in detail below in conjunction with accompanying drawing:
[0044] Step 1: Determine the reference position H of the basic unit 1 ref 5
[0045] Case 1:
[0046] When using this method for the first time to adjust the shape of the basic unit 1 of the mold, and the current position of the basic unit of the mold is unknown, the reference position of the basic unit H ref 5 can be determined based on experience, and is generally set near the middle of the movement range of the mold basic unit 1.
[0047] Case two:
[0048] If the mold shape adjustment has been completed before, and the relevant data is written into the database, the highest position H after the last mold basic unit 1 shape adjustment max 7, to determine the reference position H ref 5. Make the movement distance of the mold as small as possible, and the movement limit position of the basic unit 1 of the mold is H lim 6, it is obvious that H ref ≤H lim . Determine t...
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The invention relates to the field of machining, in particular to a rapid shape adjusting method for a multi-point forming die, which is suitable for generating a stretching molded surface by multi-point die shape adjustment in multi-point forming. The method comprises the following steps of: 1, determining a reference position Href of a basic body unit according to the highest position Hmax of the basic body unit after previous shape adjustment; 2, calculating a motion value delta Hi of the basic body unit from the reference position Href to a target position; 3, driving the basic body unit to move from the current position Hi to the reference position Href; and 4, driving the basic body unit to move from the reference position Href to the target position. According to the method, the rotating speed mode of a motor is determined by reducing the movement distance of the basic body unit and according to the movement amount of the basic body unit, and then the shape adjusting efficiency of the multi-point die is improved from the two aspects.
Description
technical field [0001] The invention relates to the field of mechanical processing, in particular to a method for quickly adjusting the shape of a multi-point forming die that is suitable for generating a stretched profile by adjusting the shape of a multi-point forming die in multi-point forming. Background technique [0002] When the multi-point forming die adjusts its shape to generate a stretched profile, it needs a shape adjustment mechanism to complete its shape adjustment, and the motor drives each basic unit of the mold to move to the target position. Due to the space limitation of the cross-sectional area of the basic unit of the mold, a separate motor cannot be installed under each unit, so the motor cannot be directly connected and fixed with the basic unit of the mold. Instead, after adjusting a basic unit, the motor is separated from it. Then connect and adjust with other primitive units. Since the motor and the mold are not always connected, there is a clutc...
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IPC IPC(8): B21D22/20B21D37/02
CPCB21D22/20B21D37/02
Inventor李斌王飞伍彬彬张强刘旭
OwnerCHENGDU AIRCRAFT INDUSTRY GROUP