CN111310286B - Method and system for calculating drawing friction coefficient of sheet material - Google Patents
Method and system for calculating drawing friction coefficient of sheet material Download PDFInfo
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Abstract
本发明公开了一种板料拉延摩擦系数的计算方法及系统，该方法包括：获得待检测板料和所述待检测板料的质量参数；利用拉延设备对所述待检测板料进行拉延，获得在拉延过程中产生的拉延参数；将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型，得到所述待检测板料的摩擦系数；其中，所述拉延摩擦系数计算模型是事先训练好的模型且考虑了所述待检测板料的质量参数。
The invention discloses a method and system for calculating the friction coefficient of sheet metal drawing. The method includes: obtaining the sheet material to be detected and the quality parameters of the sheet material to be detected; drawing, obtaining drawing parameters generated during the drawing process; inputting the drawing parameters and the quality parameters of the sheet to be detected into a drawing friction coefficient calculation model to obtain the friction coefficient of the sheet to be detected; Wherein, the drawing friction coefficient calculation model is a pre-trained model and takes into account the quality parameters of the sheet to be detected.
Description
技术领域technical field
本申请涉及汽车钣金件制造领域，尤其涉及一种板料拉延摩擦系数的计算方法及系统。The present application relates to the field of manufacturing automobile sheet metal parts, in particular to a method and system for calculating the friction coefficient of sheet metal drawing.
背景技术Background technique
在汽车钣金件进行成形制造过程中，通常在第一序先进行拉延成形。拉延成形过程中，摩擦系数对成形性影响显著。因此有必要更加科学准确地计算钢板拉延摩擦系数。In the forming and manufacturing process of automobile sheet metal parts, drawing forming is usually carried out in the first sequence. In the drawing forming process, the coefficient of friction has a significant effect on the formability. Therefore, it is necessary to calculate the steel plate drawing friction coefficient more scientifically and accurately.
摩擦系数是影响钢板冲压成形质量的重要影响参数，但是现有的摩擦系数计算并不准确。Friction coefficient is an important parameter that affects the quality of steel sheet stamping, but the existing calculation of friction coefficient is not accurate.
发明内容Contents of the invention
本发明提供了一种板料拉延摩擦系数的计算方法及系统，以解决或者部分解决现有摩擦系数的计算不准确的技术问题。The invention provides a method and system for calculating the friction coefficient of sheet metal drawing to solve or partially solve the technical problem of inaccurate calculation of the existing friction coefficient.
为解决上述技术问题，本发明提供了一种板料拉延摩擦系数的计算方法，所述方法包括：In order to solve the above-mentioned technical problems, the present invention provides a method for calculating the friction coefficient of sheet metal drawing, said method comprising:
获得待检测板料和所述待检测板料的质量参数；Obtaining the quality parameters of the board to be detected and the board to be detected;
利用拉延设备对所述待检测板料进行拉延，获得在拉延过程中产生的拉延参数；Drawing the sheet to be detected by drawing equipment to obtain drawing parameters generated during the drawing process;
将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型，得到所述待检测板料的摩擦系数；其中，所述拉延摩擦系数计算模型是事先训练好的模型且考虑了所述待检测板料的质量参数。Inputting the drawing parameters and the quality parameters of the sheet to be detected into a drawing friction coefficient calculation model to obtain the friction coefficient of the sheet to be detected; wherein, the drawing friction coefficient calculation model is trained in advance The model takes into account the quality parameters of the board to be inspected.
优选的，所述拉延参数包括：屈服强度、板料厚度、板料宽度、所述拉延设备的圆辊半径、所述待检测板料在拉延过程中的折弯角度。Preferably, the drawing parameters include: yield strength, thickness of the sheet, width of the sheet, radius of the round roller of the drawing equipment, and bending angle of the sheet to be tested during the drawing process.
优选的，所述将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型，得到所述待检测板料的摩擦系数，具体包括：Preferably, the drawing parameters and the quality parameters of the sheet to be detected are input into the drawing friction coefficient calculation model to obtain the friction coefficient of the sheet to be detected, which specifically includes:
将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式获得所述待检测板料的弯曲力；inputting the drawing parameters into the bending force calculation formula in the drawing friction coefficient calculation model to obtain the bending force of the sheet to be detected;
根据所述待检测板料的弯曲力、所述待检测板料的质量参数和所述拉延摩擦系数计算模型中的摩擦系数公式，得到所述待检测板料的摩擦系数。According to the bending force of the sheet to be detected, the quality parameters of the sheet to be detected and the friction coefficient formula in the drawing friction coefficient calculation model, the friction coefficient of the sheet to be detected is obtained.
优选的，所述将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式获得所述待检测板料的弯曲力，具体包括：Preferably, inputting the drawing parameters into the bending force calculation formula in the drawing friction coefficient calculation model to obtain the bending force of the sheet to be detected specifically includes:
将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式
优选的，所述根据所述待检测板料的弯曲力、所述待检测板料的质量参数和所述拉延摩擦系数计算模型中的摩擦系数公式，具体包括：Preferably, the friction coefficient formula in the calculation model based on the bending force of the sheet to be detected, the quality parameters of the sheet to be detected and the drawing friction coefficient specifically includes:
将所述待检测板料的弯曲力和所述待检测板料的质量参数输入所述拉延摩擦系数计算模型中的摩擦系数公式
优选的，所述将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型，具体包括：Preferably, the input of the drawing parameters and the quality parameters of the sheet to be detected into the drawing friction coefficient calculation model specifically includes:
将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型；Inputting the drawing parameters and the quality parameters of the sheet to be detected into the drawing friction coefficient calculation model;
通过所述拉延摩擦系数计算模型中的公式
优选的，所述得到所述待检测板料的摩擦系数之后，具体包括：Preferably, after obtaining the coefficient of friction of the plate to be detected, it specifically includes:
根据所述待检测板料的摩擦系数和其他待检测板料通过所述拉延摩擦系数计算模型得到的摩擦系数求平均值；所述待检测板料和所述其他待检测板料同规格；According to the friction coefficient of the sheet to be detected and the friction coefficient obtained by the drawing friction coefficient calculation model of other sheets to be detected, the average value is calculated; the sheet to be detected and the other sheets to be detected have the same specification;
将所述平均值作为所述待检测板料的摩擦系数。The average value is used as the coefficient of friction of the plate to be tested.
本发明的另一个方面，还公开了一种板料拉延摩擦系数的计算系统，包括：Another aspect of the present invention also discloses a calculation system for the friction coefficient of sheet metal drawing, including:
第一获得单元，用于获得待检测板料和所述待检测板料的质量参数；The first obtaining unit is used to obtain the quality parameters of the board to be inspected and the board to be inspected;
第二获得单元，用于利用拉延设备对所述待检测板料进行拉延，获得在拉延过程中产生的拉延参数；The second obtaining unit is used to use drawing equipment to draw the sheet to be detected, and obtain drawing parameters generated during the drawing process;
输入单元，用于将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型，得到所述待检测板料的摩擦系数；其中，所述拉延摩擦系数计算模型是事先训练好的模型且考虑了所述待检测板料的质量参数。An input unit, configured to input the drawing parameters and the quality parameters of the sheet to be detected into a drawing friction coefficient calculation model to obtain the friction coefficient of the sheet to be detected; wherein, the drawing friction coefficient calculation model is a pre-trained model and takes into account the quality parameters of the sheet to be detected.
优选的，所述拉延参数包括：屈服强度、板料厚度、板料宽度、所述拉延设备的圆辊半径、所述待检测板料在拉延过程中的折弯角度。Preferably, the drawing parameters include: yield strength, thickness of the sheet, width of the sheet, radius of the round roller of the drawing equipment, and bending angle of the sheet to be tested during the drawing process.
优选的，所述输入单元，具体包括：Preferably, the input unit specifically includes:
第三获得单元，用于将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式获得所述待检测板料的弯曲力；A third obtaining unit, configured to input the drawing parameters into the bending force calculation formula in the drawing friction coefficient calculation model to obtain the bending force of the sheet to be detected;
第四获得单元，用于根据所述待检测板料的弯曲力、所述待检测板料的质量参数和所述拉延摩擦系数计算模型中的摩擦系数公式，得到所述待检测板料的摩擦系数。The fourth obtaining unit is used to obtain the friction coefficient formula in the drawing friction coefficient calculation model according to the bending force of the sheet material to be detected, the quality parameters of the sheet material to be detected, and the friction coefficient of the sheet material to be detected. coefficient of friction.
优选的，所述第三获得单元，具体用于将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式
优选的，所述第四获得单元，具体用于将所述待检测板料的弯曲力和所述待检测板料的质量参数输入所述拉延摩擦系数计算模型中的摩擦系数公式
优选的，所述输入单元，具体用于将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型；Preferably, the input unit is specifically configured to input the drawing parameters and the quality parameters of the sheet to be detected into the drawing friction coefficient calculation model;
通过所述拉延摩擦系数计算模型中的公式
优选的，所述系统还包括：第一处理单元，用于根据所述待检测板料的摩擦系数和其他待检测板料通过所述拉延摩擦系数计算模型得到的摩擦系数求平均值；所述待检测板料和所述其他待检测板料同规格；将所述平均值作为所述待检测板料的摩擦系数。Preferably, the system further includes: a first processing unit, which is used to calculate the average value of the friction coefficient of the sheet to be detected and the friction coefficients obtained by the drawing friction coefficient calculation model of other sheets to be detected; Said sheet material to be detected and said other sheet materials to be detected have the same specifications; said average value is used as the coefficient of friction of said sheet material to be detected.
本发明的另一个方面，还公开了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述方法的步骤。Another aspect of the present invention also discloses a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of the above method are realized.
本发明的另一个方面，还公开了一种拉延试验机，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现上述方法的步骤。Another aspect of the present invention also discloses a tensile testing machine, including a memory, a processor, and a computer program stored in the memory and operable on the processor, and the above-mentioned method is realized when the processor executes the program A step of.
通过本发明的一个或者多个技术方案，本发明具有以下有益效果或者优点：Through one or more technical solutions of the present invention, the present invention has the following beneficial effects or advantages:
本申请公开了一种板料拉延摩擦系数的计算方法及系统，该方法包括：获得待检测板料及其质量参数；然后利用拉延设备对所述待检测板料进行拉延，获得在拉延过程中产生的拉延参数；并将所述拉延参数输入事先训练好的拉延摩擦系数计算模型中，得到所述待检测板料的摩擦系数；由于本申请中的模型考考虑了待检测板料本申请的质量参数对摩擦系数的影响，因此使用该模型计算得到的摩擦系数能够更为准确。The application discloses a method and system for calculating the friction coefficient of sheet metal drawing. The method includes: obtaining the sheet material to be tested and its quality parameters; The drawing parameter that produces in the drawing process; And described drawing parameter input in the drawing friction coefficient calculation model that trains in advance, obtain the friction coefficient of described sheet material to be detected; Because the model in the application considers Detect the impact of the quality parameters of the sheet metal application on the friction coefficient, so the friction coefficient calculated by using this model can be more accurate.
进一步的，由于摩擦系数是影响钢板冲压成形质量的重要影响参数，故本申请的一个或多个实施例通过拉延试验机进行摩擦系数的测量。同时将摩擦系数计算和弯曲力进行组合优化，获得新的拉延摩擦系数计算模型。从而可以更加科学严谨地计算获得板料的摩擦系数。Further, since the coefficient of friction is an important parameter affecting the quality of stamping and forming of steel plates, one or more embodiments of the present application measure the coefficient of friction through a tensile testing machine. At the same time, the friction coefficient calculation and bending force were combined and optimized to obtain a new drawing friction coefficient calculation model. Therefore, the coefficient of friction of the sheet can be calculated more scientifically and rigorously.
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其它目的、特征和优点能够更明显易懂，以下特举本发明的具体实施方式。The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.
附图说明Description of drawings
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same parts. In the attached picture:
图1示出了根据本发明一个实施例的一种板料拉延摩擦系数的计算方法的流程图；Fig. 1 shows a flow chart of a method for calculating a sheet metal drawing friction coefficient according to an embodiment of the present invention;
图2示出了根据本发明一个实施例的一种板料拉延摩擦系数的计算系统的示例图。Fig. 2 shows an example diagram of a calculation system for the friction coefficient of sheet metal drawing according to an embodiment of the present invention.
具体实施方式Detailed ways
为了使本申请所属技术领域中的技术人员更清楚地理解本申请，下面结合附图，通过具体实施例对本申请技术方案作详细描述。In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.
为了提高摩擦系数的计算准确性，本发明实施例公开了一种板料拉延摩擦系数的计算方法，使用本实施例自主创新的拉延摩擦系数计算模型计算得到摩擦系数。该模型是事先训练好的模型且考虑了所述待检测板料的质量参数，因此能够结合拉延工艺中产生的拉延参数和待检测板料自身的质量参数来计算摩擦系数，并且提高摩擦系数的准确性。In order to improve the calculation accuracy of the friction coefficient, the embodiment of the present invention discloses a calculation method of the sheet metal drawing friction coefficient, and the friction coefficient is calculated by using the self-innovated drawing friction coefficient calculation model of this embodiment. This model is a pre-trained model and considers the quality parameters of the sheet to be detected, so it can combine the drawing parameters generated in the drawing process and the quality parameters of the sheet to be detected to calculate the coefficient of friction, and improve the friction coefficient. The accuracy of the coefficients.
进一步的，由于摩擦系数是影响钢板冲压成形质量的重要影响参数，故本申请的一个或多个实施例通过拉延试验机进行摩擦系数的测量。同时将摩擦系数计算和弯曲力进行组合优化，获得新的拉延摩擦系数计算模型。从而可以更加科学严谨地计算获得板料的摩擦系数。Further, since the coefficient of friction is an important parameter affecting the quality of stamping and forming of steel plates, one or more embodiments of the present application measure the coefficient of friction through a tensile testing machine. At the same time, the friction coefficient calculation and bending force were combined and optimized to obtain a new drawing friction coefficient calculation model. Therefore, the coefficient of friction of the sheet can be calculated more scientifically and rigorously.
下面参看图1，是本实施例公开的板料拉延摩擦系数的计算方法的实施过程图，具体参看下面的步骤：Referring to Fig. 1 below, it is an implementation process diagram of the calculation method of the sheet metal drawing friction coefficient disclosed in this embodiment, specifically refer to the following steps:
步骤11，获得待检测板料和所述待检测板料的质量参数。Step 11, obtaining the quality parameters of the board to be inspected and the board to be inspected.
在具体的实施过程中，待检测板料为目前用于汽车板成形的高强钢，其试样尺寸可以自行设置，例如试样尺寸为660mm*50mm*1mm，当然也可以为其他。其质量参数可称重得到。In the specific implementation process, the sheet material to be tested is the high-strength steel currently used in the forming of automobile sheets, and the sample size can be set by itself, for example, the sample size is 660mm*50mm*1mm, of course it can also be other. Its quality parameters can be obtained by weighing.
步骤12，利用拉延设备对所述待检测板料进行拉延，获得在拉延过程中产生的拉延参数。Step 12, using a drawing device to draw the sheet to be inspected to obtain drawing parameters generated during the drawing process.
在拉延过程中，首先将待检测板料涂上润滑油，然后固定在拉延设备上。板料绕过圆辊后，主动端和从动端加持住板料。待检测板料在主动缸的拉力作用下进行流动，主动缸的速度设定为恒定，例如拉延速度通常设定为40mm/s，当然也可以为其他。从动缸进行恒定张紧力设定，张紧力需要根据待检测板料的屈服强度和抗拉强度来设定，避免在拉延过程中待检测板料发生断裂。其中，主动缸的拉力为F1，将待检测板料绕过支撑辊进行拉延，拉延速度为恒定速度，拉延距离通常设定为127mm，当然也可以为其他。从动缸的拉力为F2，从动缸设定一个固定拉力值，从而为待检测板料提供张紧力。该张紧力可以基于待检测板料的屈服强度和截面积，再乘以一个安全系数得到。During the drawing process, the sheet to be inspected is first coated with lubricating oil, and then fixed on the drawing equipment. After the sheet passes around the round roller, the driving end and the driven end hold the sheet. The sheet material to be tested flows under the pulling force of the active cylinder, and the speed of the active cylinder is set to be constant. For example, the drawing speed is usually set to 40mm/s, and of course it can be other. The slave cylinder sets the constant tension force. The tension force needs to be set according to the yield strength and tensile strength of the sheet to be tested, so as to avoid the breakage of the sheet to be tested during the drawing process. Wherein, the pulling force of the active cylinder is F1, and the sheet to be detected is drawn around the support rollers, the drawing speed is constant, and the drawing distance is usually set to 127mm, of course, it can also be other. The tension of the slave cylinder is F2, and the slave cylinder sets a fixed tension value to provide tension for the sheet to be detected. The tension can be obtained based on the yield strength and cross-sectional area of the sheet to be tested, and then multiplied by a safety factor.
待检测板料在拉延过程中，主动端在拉延待检测板料过程中，要克服从动端的拉力值，绕过圆辊时的弯曲力，待检测板料与圆辊之间的摩擦力，以及板料重力导致的摩擦力等等。而板料的弯曲力与材料的性能，规格，折弯角度和圆辊半径具有直接的关系。During the drawing process of the sheet to be detected, the driving end must overcome the tension value of the driven end, the bending force when bypassing the round roller, and the friction between the sheet to be detected and the round roller during the drawing process of the sheet to be inspected. force, and the friction caused by the gravity of the sheet, etc. The bending force of the sheet has a direct relationship with the material properties, specifications, bending angle and radius of the round roll.
因此，本申请实施例在拉延过程中会采集拉延参数，包括：屈服强度、板料厚度、板料宽度、所述拉延设备的圆辊半径、所述待检测板料在拉延过程中的折弯角度。采集到上述参数，则会进行下面的步骤。Therefore, the embodiment of the present application collects drawing parameters during the drawing process, including: yield strength, sheet thickness, sheet width, the radius of the round roller of the drawing equipment, and the drawing process of the sheet to be detected. The bend angle in . After the above parameters are collected, the following steps will be performed.
步骤13，将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型，得到所述待检测板料的摩擦系数。其中，所述拉延摩擦系数计算模型。Step 13, inputting the drawing parameters and the quality parameters of the sheet to be inspected into a drawing friction coefficient calculation model to obtain the friction coefficient of the sheet to be inspected. Wherein, the drawing friction coefficient calculation model.
在将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型的过程中，拉延摩擦系数计算模型有两种不同的处理方法，本实施例具体进行介绍。In the process of inputting the drawing parameters and the quality parameters of the plate to be tested into the drawing friction coefficient calculation model, the drawing friction coefficient calculation model has two different processing methods, which are specifically introduced in this embodiment.
第一种处理方法，该模型中含有两个公式，这两个公式是联动处理拉延参数和所述待检测板料的质量参数的。具体来说，将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式获得所述待检测板料的弯曲力。再根据所述待检测板料的弯曲力、所述待检测板料的质量参数和所述拉延摩擦系数计算模型中的摩擦系数公式，得到所述待检测板料的摩擦系数。In the first processing method, the model contains two formulas, and these two formulas are used to jointly process the drawing parameters and the quality parameters of the sheet to be inspected. Specifically, input the drawing parameters into the bending force calculation formula in the drawing friction coefficient calculation model to obtain the bending force of the plate to be detected. Then according to the bending force of the sheet to be detected, the quality parameters of the sheet to be detected and the friction coefficient formula in the drawing friction coefficient calculation model, the friction coefficient of the sheet to be detected is obtained.
进一步的，在将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式获得所述待检测板料的弯曲力的过程中，是将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式
而在根据所述待检测板料的弯曲力、所述待检测板料的质量参数和所述拉延摩擦系数计算模型中的摩擦系数公式的过程中，是将所述待检测板料的弯曲力和所述待检测板料的质量参数输入所述拉延摩擦系数计算模型中的摩擦系数公式
第二种方法，是将两个公式融合成一个公式，只需要将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型，便能够得到待检测板料的摩擦系数。进一步的，将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型。通过所述拉延摩擦系数计算模型中的公式
以上是两种不同的处理方式，但是得到的摩擦系数是一样的。The above are two different processing methods, but the obtained friction coefficient is the same.
每个待检测板料都可以通过上述方式得到摩擦系数，而为了进一步优化得到的摩擦系数。可在得到所述待检测板料的摩擦系数之后，根据所述待检测板料的摩擦系数和其他待检测板料通过所述拉延摩擦系数计算模型得到的摩擦系数求平均值。所述待检测板料和所述其他待检测板料同规格。将所述平均值作为所述待检测板料的摩擦系数。Each plate to be tested can obtain the coefficient of friction through the above-mentioned method, and in order to further optimize the obtained coefficient of friction. After obtaining the friction coefficient of the plate to be detected, the average value can be calculated according to the friction coefficient of the plate to be detected and the friction coefficients obtained by the drawing friction coefficient calculation model of other plates to be detected. The board to be tested is of the same specification as the other boards to be tested. The average value is used as the coefficient of friction of the plate to be tested.
比如，将三块同规格板料都采用上述方式进行处理得到各自的摩擦系数，然后针对三个摩擦系数求得平均值，将该平均值作为这批规格板料的摩擦系数。For example, three sheets of the same specification are processed in the above-mentioned manner to obtain their respective friction coefficients, and then the average value of the three friction coefficients is calculated, and the average value is used as the friction coefficient of the batch of sheet materials of this specification.
以上是本实施例中的方法计算摩擦系数的实施过程。而基于相同的发明构思，本发明实施例还公开了一种板料拉延摩擦系数的计算系统，该系统的实施过程和上述一个或者多个方法实施例的实施过程相同。The above is the implementation process of calculating the friction coefficient by the method in this embodiment. Based on the same inventive concept, the embodiment of the present invention also discloses a system for calculating the friction coefficient of sheet metal drawing, and the implementation process of the system is the same as the implementation process of one or more method embodiments described above.
下面请看看图2，该系统包括：Please take a look at Figure 2 below, the system includes:
第一获得单元21，用于获得待检测板料和所述待检测板料的质量参数。The first obtaining
第二获得单元22，用于利用拉延设备对所述待检测板料进行拉延，获得在拉延过程中产生的拉延参数。The second obtaining
输入单元23，用于将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型，得到所述待检测板料的摩擦系数。其中，所述拉延摩擦系数计算模型是事先训练好的模型且考虑了所述待检测板料的质量参数。The
所述拉延参数包括：屈服强度、板料厚度、板料宽度、所述拉延设备的圆辊半径、所述待检测板料在拉延过程中的折弯角度。The drawing parameters include: yield strength, sheet thickness, sheet width, radius of the round roller of the drawing equipment, and bending angle of the sheet to be detected during the drawing process.
作为一种可选的实施例，所述输入单元23，具体包括：As an optional embodiment, the
第三获得单元，用于将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式获得所述待检测板料的弯曲力；A third obtaining unit, configured to input the drawing parameters into the bending force calculation formula in the drawing friction coefficient calculation model to obtain the bending force of the sheet to be detected;
第四获得单元，用于根据所述待检测板料的弯曲力、所述待检测板料的质量参数和所述拉延摩擦系数计算模型中的摩擦系数公式，得到所述待检测板料的摩擦系数。The fourth obtaining unit is used to obtain the friction coefficient formula in the drawing friction coefficient calculation model according to the bending force of the sheet material to be detected, the quality parameters of the sheet material to be detected, and the friction coefficient of the sheet material to be detected. coefficient of friction.
作为一种可选的实施例，所述第三获得单元，具体用于将所述拉延参数输入所述拉延摩擦系数计算模型中的弯曲力计算公式
作为一种可选的实施例，所述第四获得单元，具体用于将所述待检测板料的弯曲力和所述待检测板料的质量参数输入所述拉延摩擦系数计算模型中的摩擦系数公式
作为一种可选的实施例，所述输入单元23，具体用于将所述拉延参数和所述待检测板料的质量参数输入拉延摩擦系数计算模型；As an optional embodiment, the
通过所述拉延摩擦系数计算模型中的公式
作为一种可选的实施例，所述系统还包括：第一处理单元，用于根据所述待检测板料的摩擦系数和其他待检测板料通过所述拉延摩擦系数计算模型得到的摩擦系数求平均值；所述待检测板料和所述其他待检测板料同规格；将所述平均值作为所述待检测板料的摩擦系数。As an optional embodiment, the system further includes: a first processing unit, configured to use the friction coefficient obtained by the drawing friction coefficient calculation model according to the friction coefficient of the sheet to be detected and other sheets to be detected. Calculate the average value of the coefficients; the board to be detected and the other boards to be detected have the same specifications; the average value is used as the coefficient of friction of the board to be detected.
基于相同的发明构思，本发明实施例还公开了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述方法中的一个或者多个有关于实施例中的步骤。Based on the same inventive concept, the embodiment of the present invention also discloses a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, one or more of the above methods are implemented. step.
基于相同的发明构思，本发明实施例还公开了一种拉延试验机，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现上述方法中的一个或者多个有关于实施例中的步骤。Based on the same inventive concept, the embodiment of the present invention also discloses a tensile testing machine, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, Implementing one or more of the above methods involves steps in the embodiments.
通过本发明的一个或者多个实施例，本发明具有以下有益效果或者优点：Through one or more embodiments of the present invention, the present invention has the following beneficial effects or advantages:
本申请公开了一种板料拉延摩擦系数的计算方法及系统，该方法包括：获得待检测板料及其质量参数；然后利用拉延设备对所述待检测板料进行拉延，获得在拉延过程中产生的拉延参数；并将所述拉延参数输入事先训练好的拉延摩擦系数计算模型中，得到所述待检测板料的摩擦系数；由于本申请中的模型考考虑了待检测板料本申请的质量参数对摩擦系数的影响，因此使用该模型计算得到的摩擦系数能够更为准确。The application discloses a method and system for calculating the friction coefficient of sheet metal drawing. The method includes: obtaining the sheet material to be tested and its quality parameters; The drawing parameter that produces in the drawing process; And described drawing parameter input in the drawing friction coefficient calculation model that trains in advance, obtain the friction coefficient of described sheet material to be detected; Because the model in the application considers Detect the impact of the quality parameters of the sheet metal application on the friction coefficient, so the friction coefficient calculated by using this model can be more accurate.
进一步的，由于摩擦系数是影响钢板冲压成形质量的重要影响参数，故本申请的一个或多个实施例通过拉延试验机进行摩擦系数的测量。同时将摩擦系数计算和弯曲力进行组合优化，获得新的拉延摩擦系数计算模型。从而可以更加科学严谨地计算获得板料的摩擦系数。Further, since the coefficient of friction is an important parameter affecting the quality of stamping and forming of steel plates, one or more embodiments of the present application measure the coefficient of friction through a tensile testing machine. At the same time, the friction coefficient calculation and bending force were combined and optimized to obtain a new drawing friction coefficient calculation model. Therefore, the coefficient of friction of the sheet can be calculated more scientifically and rigorously.
尽管已描述了本申请的优选实施例，但本领域内的普通技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。While preferred embodiments of the present application have been described, additional changes and modifications to these embodiments can be made by those of ordinary skill in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the application.
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.
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