Size control method for high-precision roll-formed part

A technology of size control and roll forming, which is applied in the direction of manufacturing tools, metal processing, metal processing equipment, etc., can solve the problems of material waste, uneven thickness, and reduced effective utilization of equipment

Active Publication Date: 2019-11-29
博瑞孚曼机械科技(苏州)有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, when the ultra-high-strength steel is applied to the roll forming process, the thickness of the steel strip will be uneven when the steel mill rolls the strip, resulting in uneven thickness after coiling, which eventually leads to The high-precision roll forming process needs to frequently adjust the product thickness, which not only causes material waste, but also consumes more man-hours, and the effective utilization rate of equipment is also significantly reduced

Method used

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  • Size control method for high-precision roll-formed part
  • Size control method for high-precision roll-formed part
  • Size control method for high-precision roll-formed part

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Embodiment 1

[0042] Example 1: see figure 1 shown, and in conjunction with Figure 5 and Figure 6 As shown, a method for controlling the size of a high-precision roll-formed part uses a steel strip 210 to obtain a high-precision roll-formed part 220 through a roll-forming process. The steel strip 210 is made of advanced high-strength steel materials. Among them, the steel strip 210 is in the roll forming state of continuous feeding, and its control steps include:

[0043] S10), pre-measure the steel strip thickness profile of the steel strip 210 to be processed, please refer to figure 2 As shown, the steel strip thickness profile adopts the steel strip real-time thickness value-measurement time curve as the output result and outputs it to the processing parameter database; further preferably, in this step S10), the steel strip thickness profile measurement device is used to measure the steel strip to be processed The steel strip thickness profile, the output end of the steel strip thi...

Embodiment 2

[0057] Embodiment 2: The remaining technical solutions of this embodiment 2 are the same as those of embodiment 1, the difference is that please refer to Figure 7 As shown, preferably, in this embodiment 2, the control step also includes step S40), measuring the actual value of the processing parameter of the high-precision roll-formed part, and comparing the actual value of the processing parameter with the target processing parameter determined in step S20). Compare and calculate the difference, use the difference=0 as the control target, adjust the steel strip thickness profile processing matching curve, to reduce or eliminate the contrast difference of the next steel strip processing to be processed; this embodiment optimizes the steel strip through real-time online adjustment The processing matching curve with thickness contour can further effectively improve the matching calculation accuracy of the processing parameter database.

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Abstract

The invention discloses a size control method for a high-precision roll-formed part, wherein the high-precision roll-formed part is obtained by a steel belt through a roll forming technology. Controlsteps comprise that (S10) a steel belt thickness outline of a to-be-processed steel belt is measured in advance; (S20) based on the measured steel belt thickness outline and a processing parameter database of a data center, target processing parameter settings of the steel belt are matched and computed; and (S30) the steel belt is rolled and processed by a rolling device according to the target processing parameter settings, so the high-precision roll-formed part is obtained. The method disclosed by the invention has the beneficial effects that the thickness outline of the fed steel belt is monitored, a processing matching curve of the steel belt thickness outline is calibrated in advance based on previous on-site debugging records and debugging experience, and then a real-time value of the thickness outline of the fed steel belt and the processing matching curve of the steel belt thickness outline are matched for computation of the target processing parameter settings of the steel belt, so optimum size control can be finally realized in advance processing.

Description

technical field [0001] The invention relates to the processing technology of roll-pressed products, in particular to a method for controlling the size of high-precision roll-formed parts. Background technique [0002] With the continuous tightening of national environmental protection regulations and fuel economy policies, energy saving and emission reduction have become an important trend in the current automobile development. At the same time, with the development of the automobile industry, fuel economy, low carbon emissions and higher safety have put forward new requirements and challenges for the lightweight of automobile bodies, which has effectively promoted the steady growth of the application of advanced high-strength steel in the design and manufacture of automobile bodies. . However, advanced high-strength steels, especially ultra-high-strength steels, have technical challenges in production and application technology due to changes in microstructure and macrosco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D31/00B21C51/00
CPCB21C51/00B21D31/005
Inventor 李艳冰池金波
Owner 博瑞孚曼机械科技(苏州)有限公司
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