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CN115019025A - Cutting calibration method, apparatus and computer readable storage medium - Google Patents

Cutting calibration method, apparatus and computer readable storage medium Download PDF

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CN115019025A
CN115019025A CN202210478175.8A CN202210478175A CN115019025A CN 115019025 A CN115019025 A CN 115019025A CN 202210478175 A CN202210478175 A CN 202210478175A CN 115019025 A CN115019025 A CN 115019025A
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CN115019025B (en
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高昆
谢海龙
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Shenzhen Qinghong Laser Technology Co ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
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    • G06V10/20Image preprocessing
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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    • G06T7/0002Inspection of images, e.g. flaw detection
    • G06T7/0004Industrial image inspection
    • G06T7/001Industrial image inspection using an image reference approach
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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    • G06T7/70Determining position or orientation of objects or cameras
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/30Subject of image; Context of image processing
    • G06T2207/30108Industrial image inspection
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/30Subject of image; Context of image processing
    • G06T2207/30244Camera pose

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Abstract

本发明实施例提供一种切割校准方法、设备以及计算机可读存储介质,其中,所述方法包括:获取相机采集的刀刃刃线;确定所述刀刃刃线与相机镜头的中心位置的目标刻度线之间的偏转角度、水平偏移量和/或垂直偏移量;根据所述偏转角度、所述水平偏移量和/或所述垂直偏移量,生成所述相机镜头关联的目标移动参数;根据所述目标移动参数控制相机调节轴,以通过所述相机调节轴控制所述相机镜头的中心位置与刀刃切割位置重合。通过在切割晶圆之前,对相机镜头的中心位置与刀刃切割位置进行校准,提高了切割的精确度,解决了切割精度较低的问题。

Figure 202210478175

Embodiments of the present invention provide a cutting calibration method, device, and computer-readable storage medium, wherein the method includes: acquiring a blade edge line collected by a camera; determining a target tick mark at the center position of the blade edge line and the camera lens The deflection angle, the horizontal offset and/or the vertical offset between them; the target movement parameter associated with the camera lens is generated according to the deflection angle, the horizontal offset and/or the vertical offset ; Control the camera adjustment axis according to the target movement parameter, so as to control the center position of the camera lens to coincide with the cutting position of the blade through the camera adjustment axis. By calibrating the center position of the camera lens and the cutting position of the blade before cutting the wafer, the cutting precision is improved and the problem of low cutting precision is solved.

Figure 202210478175

Description

切割校准方法、设备以及计算机可读存储介质Cutting calibration method, apparatus, and computer-readable storage medium

技术领域technical field

本发明涉及晶圆切割技术领域,尤其涉及一种切割校准方法、设备以及计算机可读存储介质。The present invention relates to the technical field of wafer cutting, and in particular, to a cutting calibration method, a device and a computer-readable storage medium.

背景技术Background technique

在晶圆(Wafer)裂片切割工艺中,需要通过相机定位到裂片的切割道,然后将被定位的切割道移至劈刀的正下方进行劈裂,相机视野的中心即是劈刀刃口对应的劈裂位置。In the wafer slicing process, the camera needs to be positioned to the slicing line of the slicing, and then the positioned slicing line is moved to the right under the rib for slicing. The center of the camera's field of view is the corresponding edge of the rib. Split position.

然而,在实际切割过程中,由于劈刀和相机之间可能会出现位置相对偏移的情况,即劈刀的实际位置和相机定位的位置不重合,此时再根据相机定位进行劈裂会降低裂片切割的精确度,从而影响到切割出来的裂片质量。However, in the actual cutting process, since there may be a relative position offset between the riving knife and the camera, that is, the actual position of the riving knife and the position of the camera positioning do not coincide, and then splitting according to the camera positioning will reduce the The accuracy of lobe cutting affects the quality of the cut lobes.

上述内容仅用于辅助理解本发明的技术方案,并不代表承认上述内容是现有技术。The above content is only used to assist the understanding of the technical solutions of the present invention, and does not mean that the above content is the prior art.

发明内容SUMMARY OF THE INVENTION

本发明的主要目的在于提供一种切割校准方法,旨在解决如何提高切割精确度的问题。The main purpose of the present invention is to provide a cutting calibration method, aiming at solving the problem of how to improve the cutting accuracy.

为实现上述目的,本发明提供的一种切割校准方法,所述切割校准方法包括:In order to achieve the above object, the present invention provides a cutting calibration method, the cutting calibration method comprises:

获取相机采集的刀刃刃线;Obtain the blade edge line collected by the camera;

确定所述刀刃刃线与相机镜头的中心位置的目标刻度线之间的偏转角度、水平偏移量和/或垂直偏移量;determining the deflection angle, the horizontal offset and/or the vertical offset between the blade edge line and the target tick mark at the center of the camera lens;

根据所述偏转角度、所述水平偏移量和/或所述垂直偏移量,生成所述相机镜头关联的目标移动参数;generating a target movement parameter associated with the camera lens according to the deflection angle, the horizontal offset and/or the vertical offset;

根据所述目标移动参数控制相机调节轴,以通过所述相机调节轴控制所述相机镜头的中心位置与刀刃切割位置重合。The camera adjustment axis is controlled according to the target movement parameter, so as to control the center position of the camera lens to coincide with the cutting position of the blade through the camera adjustment axis.

可选地,所述确定所述刀刃刃线与处于相机镜头的中心位置的目标刻度线之间的偏移角度、水平偏移量和垂直偏移量的步骤包括:Optionally, the step of determining the offset angle, horizontal offset and vertical offset between the blade edge line and the target scale line at the center of the camera lens includes:

获取所述目标刻度线所在的预设区域;Obtain the preset area where the target tick mark is located;

当所述刀刃刃线在所述预设区域中时,确定所述刀刃刃线在所述预设区域中的相对偏移位置;When the blade edge line is in the preset area, determining a relative offset position of the blade edge line in the preset area;

根据所述相对偏移位置,确定所述刀刃刃线与目标刻度线之间的所述偏移角度、所述横向偏移量和所述纵向偏移量。According to the relative offset position, the offset angle, the lateral offset amount and the longitudinal offset amount between the blade edge line and the target scale line are determined.

可选地,所述当所述刀刃刃线在所述预设区域中时,确定所述刀刃刃线在所述预设区域中的相对偏移位置的步骤包括:Optionally, when the blade edge line is in the preset area, the step of determining the relative offset position of the blade edge line in the preset area includes:

获取所述预设区域中各个像素点对应的灰度值;obtaining the grayscale value corresponding to each pixel in the preset area;

将所述灰度值中满足预设灰度匹配条件,且位于所述预设区域中的像素点对应的区域,作为位于所述预设区域中的所述刀刃刃线;Taking the area corresponding to the pixel point in the gray value that satisfies the preset gray matching condition and is located in the preset area as the blade edge line located in the preset area;

确定所述刀刃刃线与所述预设区域的中心区域之间的相对距离,得到所述刀刃刃线在所述预设区域中的所述相对偏移位置。The relative distance between the cutting edge line and the central area of the preset area is determined, and the relative offset position of the cutting edge line in the preset area is obtained.

可选地,所述根据所述偏转角度、所述水平偏移量和/或所述垂直偏移量,生成所述相机镜头关联的目标移动参数的步骤包括:Optionally, the step of generating the target movement parameter associated with the camera lens according to the deflection angle, the horizontal offset and/or the vertical offset includes:

根据所述水平偏移量确定所述相机镜头对应的水平移动量,其中,所述水平移动量包括水平横向移动量和/或水平纵向移动量;The horizontal movement amount corresponding to the camera lens is determined according to the horizontal offset, wherein the horizontal movement amount includes a horizontal horizontal movement amount and/or a horizontal vertical movement amount;

根据所述水平横向移动量和/或所述水平纵向移动量,确定所述相机镜头关联的第一目标移动参数。A first target movement parameter associated with the camera lens is determined according to the horizontal lateral movement amount and/or the horizontal vertical movement amount.

可选地,所述根据所述水平横向移动量和/或所述水平纵向移动量,确定所述相机镜头关联的所述第一目标移动参数的步骤包括:Optionally, the step of determining the first target movement parameter associated with the camera lens according to the horizontal horizontal movement amount and/or the horizontal vertical movement amount includes:

根据所述水平横向移动量确定所述第一目标移动参数的水平横向移动参数,和/或根据所述水平纵向移动量确定所述第一目标移动参数的水平纵向移动参数,并根据所述水平横向移动参数和/或水平纵向移动参数确定所述第一目标移动参数;或者Determine the horizontal and lateral movement parameters of the first target movement parameter according to the horizontal and lateral movement amount, and/or determine the horizontal and vertical movement parameters of the first target movement parameter according to the horizontal and vertical movement amount, and determine the horizontal and vertical movement parameters of the first target movement parameter according to the horizontal and vertical movement amount. The lateral movement parameter and/or the horizontal and vertical movement parameter determine the first target movement parameter; or

根据所述水平横向移动量和所述水平纵向移动量,确定所述第一目标移动参数的直线移动参数,将所述直线移动参数作为所述第一目标移动参数。A linear movement parameter of the first target movement parameter is determined according to the horizontal lateral movement amount and the horizontal longitudinal movement amount, and the linear movement parameter is used as the first target movement parameter.

可选地,所述根据所述偏转角度、所述水平偏移量和/或所述垂直偏移量,生成所述相机镜头关联的目标移动参数的步骤包括:Optionally, the step of generating the target movement parameter associated with the camera lens according to the deflection angle, the horizontal offset and/or the vertical offset includes:

根据所述偏转角度确定所述相机镜头对应的旋转角度,根据所述水平偏移量确定所述相机镜头对应的水平移动量,和/或根据所述垂直偏移量确定所述相机镜头对应的垂直移动量;The rotation angle corresponding to the camera lens is determined according to the deflection angle, the horizontal movement amount corresponding to the camera lens is determined according to the horizontal offset, and/or the vertical offset corresponding to the camera lens is determined vertical movement;

根据所述旋转角度、所述水平移动量和/或所述垂直移动量,确定所述相机镜头关联的第二目标移动参数。A second target movement parameter associated with the camera lens is determined according to the rotation angle, the horizontal movement amount and/or the vertical movement amount.

此外,本发明还提供一种切割校准设备,述切割校准设备包括:劈刀、光源、相机、相机调节轴以及控制电路板,所述控制电路板包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的切割校准程序,所述切割校准程序被所述处理器执行时实现如上所述的切割校准方法的步骤。In addition, the present invention also provides a cutting calibration device, the cutting calibration device includes: a riving knife, a light source, a camera, a camera adjustment shaft, and a control circuit board, the control circuit board includes a memory, a processor, and storage on the memory. and a cutting calibration program executable on the processor, the cutting calibration program implementing the steps of the cutting calibration method as described above when executed by the processor.

可选地,所述切割校准设备包括:所述切割校准设备的顶端设置有劈刀,所述劈刀用于校准之后执行切割动作;所述劈刀下侧设置有所述光源和所述相机,所述相机用于采集所述光源照射下所述劈刀的刀刃刃线;所述相机包括上侧的相机镜头和下侧的相机支撑件,所述相机镜头用于切割校准,所述相机支撑件和底部的所述相机调节轴连接;所述相机调节轴包括垂直调节轴、水平调节轴以及旋转轴,所述相机调节轴用于控制所述相机镜头执行切割校准动作。Optionally, the cutting calibration device includes: a riveting knife is provided at the top of the cutting calibration device, and the ripping knife is used to perform a cutting action after calibration; the light source and the camera are provided on the lower side of the ripping knife , the camera is used to collect the edge line of the riving knife under the illumination of the light source; the camera includes a camera lens on the upper side and a camera support on the lower side, the camera lens is used for cutting calibration, and the camera The support is connected with the camera adjustment shaft at the bottom; the camera adjustment shaft includes a vertical adjustment shaft, a horizontal adjustment shaft and a rotation shaft, and the camera adjustment shaft is used to control the camera lens to perform cutting and calibration actions.

此外,本发明还提供一种计算机可读存储介质,所述计算机可读存储介质存储有切割校准程序,所述切割校准程序被处理器执行时实现如上实施例所述的切割校准方法的各个步骤。In addition, the present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores a cutting calibration program, and when the cutting calibration program is executed by a processor, implements each step of the cutting calibration method described in the above embodiment .

本发明实施例提供一种切割校准方法、设备以及计算机可读存储介质,其中,所述方法包括:获取相机采集的刀刃刃线;确定所述刀刃刃线与相机镜头的中心位置的目标刻度线之间的偏转角度、水平偏移量和/或垂直偏移量;根据所述偏转角度、所述水平偏移量和/或所述垂直偏移量,生成所述相机镜头关联的目标移动参数;根据所述目标移动参数控制相机调节轴,以通过所述相机调节轴控制所述相机镜头的中心位置与刀刃切割位置重合。通过在切割晶圆之前,对相机镜头的中心位置与刀刃切割位置进行校准,提高了切割的精确度,解决了切割精确度较低的问题。Embodiments of the present invention provide a cutting calibration method, device, and computer-readable storage medium, wherein the method includes: acquiring a blade edge line collected by a camera; determining a target tick mark at the center position of the blade edge line and the camera lens The deflection angle, the horizontal offset and/or the vertical offset between them; the target movement parameter associated with the camera lens is generated according to the deflection angle, the horizontal offset and/or the vertical offset ; Control the camera adjustment axis according to the target movement parameter, so as to control the center position of the camera lens to coincide with the cutting position of the blade through the camera adjustment axis. By calibrating the center position of the camera lens and the cutting position of the blade before cutting the wafer, the cutting precision is improved and the problem of low cutting precision is solved.

附图说明Description of drawings

图1为本发明实施例涉及的切割校准设备的硬件架构示意图;1 is a schematic diagram of a hardware architecture of a cutting calibration device involved in an embodiment of the present invention;

图2为本发明切割校准方法的第一实施例的流程示意图;Fig. 2 is the schematic flow chart of the first embodiment of the cutting calibration method of the present invention;

图3为本发明切割校准方法的第二实施例中步骤S20的细化流程示意图;3 is a schematic diagram of a refinement flow of step S20 in the second embodiment of the cutting calibration method of the present invention;

图4为本发明切割校准方法的第三实施例中步骤S30的细化流程示意图;4 is a schematic diagram of a refinement flow of step S30 in the third embodiment of the cutting calibration method of the present invention;

图5为本发明切割校准方法的第四实施例中步骤S30的另一细化流程示意图。FIG. 5 is a schematic diagram of another refinement flow of step S30 in the fourth embodiment of the cutting calibration method of the present invention.

本发明目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

具体实施方式Detailed ways

应当理解,本发明的附图中显示了本发明的示例性实施例,可以以各种形式实现本发明而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本发明,并且能够将本发明的范围完整的传达给本领域的技术人员。It should be understood that, while exemplary embodiments of the present invention are shown in the accompanying drawings, the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thoroughly understood, and will fully convey the scope of the present invention to those skilled in the art.

作为一种实现方案,切割校准设备可以如图1所示。As an implementation solution, the cutting calibration equipment may be as shown in FIG. 1 .

本发明实施例方案涉及的是切割校准设备,所述切割校准设备包括:处理器101,例如CPU,存储器102,通信总线103。其中,通信总线103用于实现这些组件之间的连接通信。The embodiments of the present invention relate to a cutting calibration device, and the cutting calibration device includes: a processor 101 , such as a CPU, a memory 102 , and a communication bus 103 . Among them, the communication bus 103 is used to realize the connection and communication between these components.

存储器102可以是高速RAM存储器,也可以是稳定的存储器(non-volatilememory),例如磁盘存储器。如图1所示,作为一种计算机可读存储介质的存储器102中可以包括切割校准程序;而处理器101可以用于调用存储器102中存储的切割校准程序,并执行以下操作:The memory 102 may be high-speed RAM memory, or may be non-volatile memory, such as disk memory. As shown in FIG. 1, the memory 102, which is a computer-readable storage medium, may include a cutting calibration program; and the processor 101 may be used to call the cutting calibration program stored in the memory 102, and perform the following operations:

获取相机采集的刀刃刃线;Obtain the blade edge line collected by the camera;

确定所述刀刃刃线与相机镜头的中心位置的目标刻度线之间的偏转角度、水平偏移量和/或垂直偏移量;determining the deflection angle, the horizontal offset and/or the vertical offset between the blade edge line and the target tick mark at the center of the camera lens;

根据所述偏转角度、所述水平偏移量和/或所述垂直偏移量,生成所述相机镜头关联的目标移动参数;generating a target movement parameter associated with the camera lens according to the deflection angle, the horizontal offset and/or the vertical offset;

根据所述目标移动参数控制相机调节轴,以通过所述相机调节轴控制所述相机镜头的中心位置与刀刃切割位置重合。The camera adjustment axis is controlled according to the target movement parameter, so as to control the center position of the camera lens to coincide with the cutting position of the blade through the camera adjustment axis.

在一实施例中,处理器101可以用于调用存储器102中存储的切割校准程序,并执行以下操作:In one embodiment, the processor 101 may be configured to invoke the cutting calibration program stored in the memory 102 and perform the following operations:

获取所述目标刻度线所在的预设区域;Obtain the preset area where the target tick mark is located;

获取所述预设区域中各个像素点对应的灰度值;obtaining the grayscale value corresponding to each pixel in the preset area;

将所述灰度值中满足预设灰度匹配条件,且位于所述预设区域中的像素点对应的区域,作为位于所述预设区域中的所述刀刃刃线;Taking the area corresponding to the pixel point in the gray value that satisfies the preset gray matching condition and is located in the preset area as the blade edge line located in the preset area;

确定所述刀刃刃线与所述预设区域的中心区域之间的相对距离,得到所述刀刃刃线在所述预设区域中的所述相对偏移位置;determining the relative distance between the blade edge line and the central area of the preset area, to obtain the relative offset position of the blade edge line in the preset area;

根据所述相对偏移位置,确定所述刀刃刃线与目标刻度线之间的所述偏移角度、所述横向偏移量和所述纵向偏移量。According to the relative offset position, the offset angle, the lateral offset amount and the longitudinal offset amount between the blade edge line and the target scale line are determined.

在一实施例中,处理器101可以用于调用存储器102中存储的切割校准程序,并执行以下操作:In one embodiment, the processor 101 may be configured to invoke the cutting calibration program stored in the memory 102 and perform the following operations:

根据所述水平偏移量确定所述相机镜头对应的水平移动量,其中,所述水平移动量包括水平横向移动量和/或水平纵向移动量;The horizontal movement amount corresponding to the camera lens is determined according to the horizontal offset, wherein the horizontal movement amount includes a horizontal horizontal movement amount and/or a horizontal vertical movement amount;

根据所述水平横向移动量确定所述第一目标移动参数的水平横向移动参数,和/或根据所述水平纵向移动量确定所述第一目标移动参数的水平纵向移动参数,并根据所述水平横向移动参数和/或水平纵向移动参数确定所述第一目标移动参数;或者根据所述水平横向移动量和所述水平纵向移动量,确定所述第一目标移动参数的直线移动参数,将所述直线移动参数作为所述第一目标移动参数。Determine the horizontal and lateral movement parameters of the first target movement parameter according to the horizontal and lateral movement amount, and/or determine the horizontal and vertical movement parameters of the first target movement parameter according to the horizontal and vertical movement amount, and determine the horizontal and vertical movement parameters of the first target movement parameter according to the horizontal and vertical movement amount. The lateral movement parameter and/or the horizontal and vertical movement parameters determine the first target movement parameter; or, according to the horizontal lateral movement amount and the horizontal and vertical movement amount, determine the linear movement parameter of the first target movement parameter, The linear movement parameter is used as the first target movement parameter.

在一实施例中,处理器101可以用于调用存储器102中存储的切割校准程序,并执行以下操作:In one embodiment, the processor 101 may be configured to invoke the cutting calibration program stored in the memory 102 and perform the following operations:

根据所述偏转角度确定所述相机镜头对应的旋转角度,根据所述水平偏移量确定所述相机镜头对应的水平移动量,和/或根据所述垂直偏移量确定所述相机镜头对应的垂直移动量;The rotation angle corresponding to the camera lens is determined according to the deflection angle, the horizontal movement amount corresponding to the camera lens is determined according to the horizontal offset, and/or the vertical offset corresponding to the camera lens is determined vertical movement;

根据所述旋转角度、所述水平移动量和/或所述垂直移动量,确定所述相机镜头关联的第二目标移动参数。A second target movement parameter associated with the camera lens is determined according to the rotation angle, the horizontal movement amount and/or the vertical movement amount.

基于上述基于晶圆切割技术的切割校准装置的硬件架构,提出本发明切割校准方法的实施例。Based on the hardware architecture of the cutting calibration device based on the wafer cutting technology, an embodiment of the cutting calibration method of the present invention is proposed.

参照图2,在第一实施例中,所述切割校准方法包括以下步骤:2, in the first embodiment, the cutting calibration method includes the following steps:

步骤S10,获取相机采集的刀刃刃线;Step S10, acquiring the blade edge line collected by the camera;

在本实施例中,在刀刃进行切割之前,需要对刀刃的切割位置进行校准,在本实施例中的校准方式是通过一个固定在切割校准设备上的高清相机采集到刀刃的刃线位置,所述相机的镜头垂直正对所述刀刃,在光源照射下拍摄切割刀的刃线部位,得到清晰的刀刃刃线图像,并且再采集到刀刃刃线图像,通过灰度匹配的方法即可从刃线图像中提取出刀刃刃线。In this embodiment, before the cutting edge is cut, the cutting position of the cutting edge needs to be calibrated. The lens of the camera is perpendicular to the blade, and the edge line part of the cutting knife is photographed under the illumination of the light source to obtain a clear image of the blade edge line, and then the image of the blade edge line is collected. The blade edge line is extracted from the line image.

步骤S20,确定所述刀刃刃线与相机镜头的中心位置的目标刻度线之间的偏转角度、水平偏移量和/或垂直偏移量;Step S20, determining the deflection angle, the horizontal offset and/or the vertical offset between the blade edge line and the target scale line at the center of the camera lens;

在本实施例中,在得到刀刃刃线之后,将刀刃刃线所处位置作为基准位置,确定所述相机镜头与该基准位置之间的偏差量,偏差量包括偏转角度、水平偏移量和垂直偏移量中的至少一个,目标刻度线可以是表示相机中心位置的一条水平刻度线,需要强调的是,目标刻度线并非真正刻在相机镜头中心,而是作为计算机程序识别所述切割位置的校准线。In this embodiment, after the cutting edge line is obtained, the position of the cutting edge line is used as the reference position, and the deviation between the camera lens and the reference position is determined, and the deviation includes deflection angle, horizontal deviation and At least one of the vertical offsets, the target tick mark can be a horizontal tick mark indicating the position of the center of the camera, it should be emphasized that the target tick mark is not actually engraved in the center of the camera lens, but as a computer program to identify the cut position calibration line.

进一步的,对于无偏差的刀刃位置来说,刀刃刃线图像应处于相机镜头的中心位置,且与所述目标刻度线保持一定的重合,因此,假设刃线位置与所述目标刻度线之间不重合,则意味着切割位置存在偏差。偏转角度是刀刃刃线与水平的目标刻度线与之间的角度值,即相机镜头相对切割刀有了一定的偏转;水平偏移量则是刃线相对于目标刻度线在水平方向上(即x轴、y轴)上出现偏移,意味着镜头相对切割刀在水平方向上存在偏差;垂直偏移量则是镜头在垂直方向上(即z轴)上出现高度偏差。Further, for the position of the blade without deviation, the image of the blade edge line should be in the center of the camera lens, and keep a certain overlap with the target scale line. Therefore, it is assumed that the position of the blade line is between the target scale line. If they do not coincide, it means that there is a deviation in the cutting position. The deflection angle is the angle value between the blade edge line and the horizontal target scale line, that is, the camera lens has a certain deflection relative to the cutting knife; the horizontal offset is the horizontal direction of the blade line relative to the target scale line (ie. The offset on the x-axis, y-axis) means that the lens has a deviation in the horizontal direction relative to the cutting knife; the vertical offset is the height deviation of the lens in the vertical direction (ie, the z-axis).

步骤S30,根据所述偏转角度、所述水平偏移量和/或所述垂直偏移量,生成所述相机镜头关联的目标移动参数;Step S30, generating a target movement parameter associated with the camera lens according to the deflection angle, the horizontal offset and/or the vertical offset;

步骤S40,根据所述目标移动参数控制相机调节轴,以通过所述相机调节轴控制所述相机镜头的中心位置与刀刃切割位置重合。Step S40 , controlling the camera adjustment axis according to the target movement parameter, so as to control the center position of the camera lens to coincide with the cutting position of the blade through the camera adjustment axis.

在本实施例中,在确定出相机镜头相对切割刀之间存在的偏差之后,根据偏差值生成相应的移动参数,进而相机调节轴根据该移动参数来控制相机镜头进行移动,使得所述相机镜头的中心位置与刀刃切割位置重合,从而实现切割校准。In this embodiment, after the deviation between the camera lens and the cutting knife is determined, a corresponding movement parameter is generated according to the deviation value, and then the camera adjustment axis controls the camera lens to move according to the movement parameter, so that the camera lens can move. The center position of the blade coincides with the cutting position of the blade, so as to realize the cutting calibration.

在本实施例提供的技术方案中,通过采集切割刀的刀刃刃线,再确定刀刃刃线与相机镜头的中心位置的偏差,然后根据偏差确定出相应的偏差补偿移动参数,最后根据所述补偿移动参数控制相机调节轴,使得相机镜头的中心位置与刀刃切割位置重合,从而实现切割校准。提高了切割的精确度。In the technical solution provided by this embodiment, by collecting the cutting edge line of the cutting knife, the deviation between the cutting edge line and the center position of the camera lens is determined, and then the corresponding deviation compensation movement parameters are determined according to the deviation, and finally the compensation The movement parameter controls the camera adjustment axis, so that the center position of the camera lens coincides with the cutting position of the blade, so as to realize the cutting calibration. Improved cutting accuracy.

参照图3,在第二实施例中,基于第一实施例,所述步骤S20包括:3, in the second embodiment, based on the first embodiment, the step S20 includes:

步骤S21,获取所述目标刻度线所在的预设区域;Step S21, obtaining the preset area where the target scale line is located;

步骤S221,获取所述预设区域中各个像素点对应的灰度值;Step S221, obtaining the grayscale value corresponding to each pixel in the preset area;

步骤S222,将所述灰度值中满足预设灰度匹配条件,且位于所述预设区域中的像素点对应的区域,作为位于所述预设区域中的所述刀刃刃线;Step S222, taking the area corresponding to the pixel point in the gray value that meets the preset grayscale matching condition and is located in the preset area as the blade edge line located in the preset area;

步骤S223,确定所述刀刃刃线与所述预设区域的中心区域之间的相对距离,得到所述刀刃刃线在所述预设区域中的所述相对偏移位置。Step S223: Determine the relative distance between the blade edge line and the central area of the preset area, and obtain the relative offset position of the blade edge line in the preset area.

步骤S23,根据所述相对偏移位置,确定所述刀刃刃线与目标刻度线之间的所述偏移角度、所述横向偏移量和所述纵向偏移量。Step S23, according to the relative offset position, determine the offset angle, the lateral offset and the longitudinal offset between the blade edge line and the target scale line.

可选地,由于采集到的刀刃刃线图像可能会出现偏移相机镜头太远的情形,而这种情况往往是由于采集过程中出现了错误导致,因此在本实施例中,基于目标刻度线设定一个预设区域,当刃线处于所述预设区域内时,再进一步执行动作。Optionally, since the collected image of the blade edge line may be too far away from the camera lens, and this situation is often caused by an error during the collection process, in this embodiment, based on the target scale line A preset area is set, and when the edge line is within the preset area, further actions are performed.

进一步的,基于预设区域内,获取区域内各个像素点对应的灰度值,通过灰度匹配的方式,将满足预设灰度匹配条件,且位于所述预设区域中的像素点对应的像素点所构成的区域,作为所述刀刃刃线,然后基于预设区域的中心位置坐标——即目标刻度线所处位置,确定所述刀刃刃线在所述预设区域中的所述相对偏移位置,相对偏移位置包括镜头角度偏移、水平位置偏移和垂直位置偏移,根据所述相对偏移位置确定所述刀刃刃线与目标刻度线之间的所述偏移角度、所述横向偏移量和所述纵向偏移量。Further, based on the preset area, the gray value corresponding to each pixel in the area is obtained, and the preset gray matching condition will be satisfied by gray matching, and the corresponding pixel in the preset area will be The area formed by the pixel points is used as the blade edge line, and then the relative position of the blade edge line in the preset area is determined based on the center position coordinates of the preset area—that is, the position of the target tick mark. Offset position, the relative offset position includes lens angle offset, horizontal position offset and vertical position offset, and the offset angle between the blade edge line and the target scale line is determined according to the relative offset position, the lateral offset and the vertical offset.

示例性地,预设区域可以是一个三维空间,其中心位置对应的坐标设定为(0,0,0),对预设区域内进行灰度匹配,确定出刀刃刃线,再进一步的获取到所述刀刃刃线的位置,基于所述中心坐标,假定所述刀刃刃线的坐标为(-1,2,1),则确定出相机的偏移量为:向X轴正向移动量1,Y轴负向移动量2,Z轴负向移动量1。在移动之后,根据两条线之间的夹角度数确定相机镜头的偏移角度,当夹角度数为0°或180°时,判定为两条线重合。Exemplarily, the preset area may be a three-dimensional space, and the coordinates corresponding to its center position are set to (0, 0, 0), and grayscale matching is performed in the preset area to determine the blade edge line, and then further obtain To the position of the blade edge line, based on the center coordinates, assuming that the coordinates of the blade edge line are (-1, 2, 1), the offset of the camera is determined as: the amount of movement in the positive direction of the X axis 1, Y-axis negative movement amount 2, Z-axis negative movement amount 1. After moving, the offset angle of the camera lens is determined according to the angle between the two lines. When the angle between the two lines is 0° or 180°, it is determined that the two lines are coincident.

在本实施例提供的技术方案中,通过设定一个预设区域,并基于该预设区域进行灰度匹配确定出刀刃刃线,然后在预设区域中根据刀刃刃线移动目标刻度线,最终使得两条线重合的方式,提高了切割的精确度。In the technical solution provided in this embodiment, a preset area is set, and the edge line of the blade is determined by performing grayscale matching based on the preset area, and then the target scale line is moved in the preset area according to the edge line of the blade, and finally The way of making the two lines overlap improves the accuracy of cutting.

参照图4,在第三实施例中,基于第一实施例,所述步骤S30包括:4, in the third embodiment, based on the first embodiment, the step S30 includes:

步骤S31,根据所述水平偏移量确定所述相机镜头对应的水平移动量,其中,所述水平移动量包括水平横向移动量和/或水平纵向移动量;Step S31, determining a horizontal movement amount corresponding to the camera lens according to the horizontal offset, wherein the horizontal movement amount includes a horizontal horizontal movement amount and/or a horizontal vertical movement amount;

步骤S321,根据所述水平横向移动量确定所述第一目标移动参数的水平横向移动参数,和/或根据所述水平纵向移动量确定所述第一目标移动参数的水平纵向移动参数,并根据所述水平横向移动参数和/或水平纵向移动参数确定所述第一目标移动参数;或者根据所述水平横向移动量和所述水平纵向移动量,确定所述第一目标移动参数的直线移动参数,将所述直线移动参数作为所述第一目标移动参数。Step S321: Determine the horizontal and lateral movement parameters of the first target movement parameter according to the horizontal and lateral movement amount, and/or determine the horizontal and vertical movement parameters of the first target movement parameter according to the horizontal and vertical movement amount, and according to The horizontal lateral movement parameter and/or the horizontal and vertical movement parameter determine the first target movement parameter; or the linear movement parameter of the first target movement parameter is determined according to the horizontal lateral movement amount and the horizontal and vertical movement amount , and the linear movement parameter is used as the first target movement parameter.

可选地,本实施例提供一种水平方向上的目标移动参数的确定方法。在本实施例中,当切割刀相对晶圆切割位置存在水平方向上的偏差时,则根据水平方向上确定的偏差量来确定相机的移动参数。在实际的切割过程中,水平方向上的切割位置偏差是较为常见一种偏差,对于水平位置偏差,存在横向和纵向两种方向(即x轴和y轴),因此,将目标刻度线的中点作为原点,建立一个二维坐标系,根据得到的相机相对于切割刀之间的水平偏移量确定初相应的水平横向移动量和水平纵向移动量中的至少一个,根据所述水平横向移动量和/或所述水平纵向移动量确定相机镜头的目标移动参数。Optionally, this embodiment provides a method for determining a target movement parameter in a horizontal direction. In this embodiment, when there is a deviation in the horizontal direction between the cutting blade and the cutting position of the wafer, the movement parameter of the camera is determined according to the deviation amount determined in the horizontal direction. In the actual cutting process, the cutting position deviation in the horizontal direction is a common deviation. For the horizontal position deviation, there are horizontal and vertical directions (that is, the x-axis and the y-axis). The point is used as the origin, and a two-dimensional coordinate system is established. According to the obtained horizontal offset between the camera and the cutting blade, at least one of the corresponding horizontal horizontal movement and horizontal vertical movement is determined. According to the horizontal horizontal movement The amount and/or the amount of said horizontal and vertical movement determines the target movement parameter of the camera lens.

进一步的,对于相机的移动方式来说,在一个目标位置确定之后,相机调节轴可以根据该目标位置的横、纵坐标分别进行移动,即先横向移动相应的距离再纵向移动相应距离(或者先纵向移动相应的距离再横向移动相应距离);相机调节轴也可以直接根据目标位置和当前位置之间的直线距离,直接控制相机直线移动至目标位置,具体的实施方式可以根据实际切割过程中的实际需要来设置。Further, for the movement mode of the camera, after a target position is determined, the camera adjustment axis can be moved according to the horizontal and vertical coordinates of the target position, that is, first move the corresponding distance horizontally and then move the corresponding distance vertically (or Move the corresponding distance vertically and then move the corresponding distance horizontally); the camera adjustment axis can also directly control the camera to move to the target position in a straight line according to the straight-line distance between the target position and the current position. The specific implementation can be based on the actual cutting process. actually needs to be set.

示例性地,在切割校准程序的显示界面中,设定蓝色十字线的中心为相机视野中心(即目标刻度线中点),设定黄线为切割刀刃与相机中心的偏差距离,在显示界面的左右两端设有刻度线,刻度线用于衡量偏差距离。假设刃线和相机中心在y轴上存在偏差,则所述切割校准程序获取到所述刀刃刃线图像之后,自动判断出二者的偏差距离,并以黄线的长度将偏差距离可视化,例如生成的黄线长度为7.204mm,且黄线与蓝色十字线的竖线平行,则意味着切割刃线和相机镜头在水平方向的y轴上存在7.204mm的距离误差。Exemplarily, in the display interface of the cutting calibration program, the center of the blue cross line is set as the center of the camera's field of view (ie, the midpoint of the target scale line), and the yellow line is set as the deviation distance between the cutting blade and the camera center. The left and right ends of the interface are provided with tick marks, which are used to measure the deviation distance. Assuming that there is a deviation between the edge line and the camera center on the y-axis, after the cutting calibration program obtains the image of the blade edge line, it automatically determines the deviation distance between the two, and visualizes the deviation distance with the length of the yellow line, for example The length of the generated yellow line is 7.204mm, and the yellow line is parallel to the vertical line of the blue cross, which means that there is a distance error of 7.204mm between the cutting edge line and the camera lens on the y-axis in the horizontal direction.

在本实施例提供多个技术方案中,通过水平偏移量确定所述相机镜头对应的水平移动量,根据所述水平横向移动量和/或所述水平纵向移动量,确定所述相机镜头关联的所述第一目标移动参数的方式,使得切割位置在出现水平方向偏差的时候调整相机镜头以对准切割刀,提高了切割的精确度。In a number of technical solutions provided in this embodiment, the horizontal movement amount corresponding to the camera lens is determined by the horizontal offset, and the association of the camera lens is determined according to the horizontal horizontal movement amount and/or the horizontal vertical movement amount The method of moving the parameters of the first target, so that the camera lens is adjusted to align the cutting knife when the cutting position has a horizontal deviation, which improves the cutting accuracy.

参照图5,在第四实施例中,基于第一实施例,所述步骤S30还包括:5, in the fourth embodiment, based on the first embodiment, the step S30 further includes:

步骤S33,根据所述偏转角度确定所述相机镜头对应的旋转角度,根据所述水平偏移量确定所述相机镜头对应的水平移动量,和/或根据所述垂直偏移量确定所述相机镜头对应的垂直移动量;Step S33, determining the rotation angle corresponding to the camera lens according to the deflection angle, determining the horizontal movement amount corresponding to the camera lens according to the horizontal offset, and/or determining the camera according to the vertical offset The vertical movement amount corresponding to the lens;

步骤S34,根据所述旋转角度、所述水平移动量和/或所述垂直移动量,确定所述相机镜头关联的第二目标移动参数。Step S34: Determine a second target movement parameter associated with the camera lens according to the rotation angle, the horizontal movement amount and/or the vertical movement amount.

可选地,本实施例提供另一种确定目标移动参数的方式。除第三实施例中所提到的较为常见的水平方向的位置偏差,在切割工艺中还会出现垂直方向、相机镜头角度偏差等情况。垂直方向上的出现偏差容易导致切割刀在下刀的时候切割不到目标位置或是切割位置过深;而在晶圆切割过程中,切割晶圆裂片时,裂片的方向是固定的,因此相机镜头角度偏差出现偏差会导致切割到的位置出现误差,降低了晶圆切割的精确度。由于在每一次的切割校准过程中,并非每一种类型误差都会同时存在,往往存在的误差类型是其中的至少一种,因此在切割校准程序未识别到该类型的位置误差时,则不产生相应类型的移动参数。Optionally, this embodiment provides another way of determining the target movement parameter. In addition to the relatively common positional deviation in the horizontal direction mentioned in the third embodiment, the vertical direction and the angle deviation of the camera lens may also occur in the cutting process. The deviation in the vertical direction can easily lead to the cutting knife not cutting the target position or the cutting position is too deep when the knife is lowered; while in the wafer cutting process, when cutting the wafer split, the direction of the split is fixed, so the camera lens The deviation of the angle deviation will lead to the error of the cut position, which reduces the accuracy of wafer cutting. Because in each cutting calibration process, not every type of error will exist at the same time, and the type of error that often exists is at least one of them. Therefore, when the cutting calibration program does not recognize this type of position error, no error will be generated. The corresponding type of move parameter.

示例性地,假设程序确定出刀刃和镜头在水平方向的x轴正向上存在4mm误差,存在0.3°的镜头偏转(假设顺时针为正),但垂直方向上的偏差为0,则生成的目标移动参数为:向x轴负向移动4mm,镜头向逆时针方向旋转0.3°。由于垂直方向上没有偏差,因此不产生垂直方向的移动参数。Illustratively, assuming that the program determines that there is a 4mm error in the positive x-axis of the blade and the lens in the horizontal direction, there is a 0.3° lens deflection (assuming clockwise is positive), but the deviation in the vertical direction is 0, then the generated target The movement parameters are: move 4mm in the negative direction of the x-axis, and rotate the lens counterclockwise by 0.3°. Since there is no deviation in the vertical direction, no vertical movement parameters are generated.

在本实施例中,通过根据偏转角度确定相机镜头对应的旋转角度,根据水平偏移量确定相机镜头对应的水平移动量,和/或根据所述垂直偏移量确定相机镜头对应的垂直移动量,涵盖了较为常见类型的位置偏差,并基于这些类型的位置偏差产生相应的位置补偿数据,提升了切割的准确度。In this embodiment, the rotation angle corresponding to the camera lens is determined according to the deflection angle, the horizontal movement amount corresponding to the camera lens is determined according to the horizontal offset, and/or the vertical movement amount corresponding to the camera lens is determined according to the vertical offset , which covers the more common types of positional deviations, and generates corresponding positional compensation data based on these types of positional deviations, improving the accuracy of cutting.

此外,本发明还提供一种切割校准设备,述切割校准设备包括:劈刀、光源、相机、相机调节轴以及控制电路板,所述控制电路板包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的切割校准程序,所述切割校准程序被所述处理器执行时实现如上所述的切割校准方法的步骤。In addition, the present invention also provides a cutting calibration device, the cutting calibration device includes: a riving knife, a light source, a camera, a camera adjustment shaft, and a control circuit board, the control circuit board includes a memory, a processor, and storage on the memory. and a cutting calibration program executable on the processor, the cutting calibration program implementing the steps of the cutting calibration method as described above when executed by the processor.

可选地,所述切割校准设备包括:所述切割校准设备的顶端设置有劈刀,所述劈刀用于校准之后执行切割动作;所述劈刀下侧设置有所述光源和所述相机,所述相机用于采集所述光源照射下所述劈刀的刀刃刃线;所述相机包括上侧的相机镜头和下侧的相机支撑件,所述相机镜头用于切割校准,所述相机支撑件和底部的所述相机调节轴连接;所述相机调节轴包括垂直调节轴、水平调节轴以及旋转轴,所述相机调节轴用于控制所述相机镜头执行切割校准动作。Optionally, the cutting calibration device includes: a riveting knife is provided at the top of the cutting calibration device, and the ripping knife is used to perform a cutting action after calibration; the light source and the camera are provided on the lower side of the ripping knife , the camera is used to collect the edge line of the riving knife under the illumination of the light source; the camera includes a camera lens on the upper side and a camera support on the lower side, the camera lens is used for cutting calibration, and the camera The support is connected with the camera adjustment shaft at the bottom; the camera adjustment shaft includes a vertical adjustment shaft, a horizontal adjustment shaft and a rotation shaft, and the camera adjustment shaft is used to control the camera lens to perform cutting and calibration actions.

此外,本发明还提供一种计算机可读存储介质,所述计算机可读存储介质存储有切割校准程序,所述切割校准程序被处理器执行时实现如上实施例所述的切割校准方法的各个步骤。In addition, the present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores a cutting calibration program, and when the cutting calibration program is executed by a processor, implements each step of the cutting calibration method described in the above embodiment .

需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在如上所述的一个计算机可读存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本发明各个实施例所述的方法。From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on such understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that contribute to the prior art, and the computer software products are stored in the above-mentioned computer-readable storage medium (such as ROM/RAM, magnetic disk, optical disk), including several instructions to make a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the methods described in various embodiments of the present invention.

以上仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields , are similarly included in the scope of patent protection of the present invention.

Claims (9)

1. A cutting calibration method, characterized in that the steps of the cutting calibration method comprise:
acquiring a blade line of a blade collected by a camera;
determining a deflection angle, a horizontal offset and/or a vertical offset between the blade edge line and a target scale line of the center position of the camera lens;
generating a target movement parameter associated with the camera lens according to the deflection angle, the horizontal offset and/or the vertical offset;
and controlling a camera adjusting shaft according to the target moving parameters so as to control the center position of the camera lens to coincide with the cutting position of the cutting edge through the camera adjusting shaft.
2. The cutting calibration method of claim 1, wherein the step of determining the offset angle, horizontal offset and vertical offset between the blade edge line and the target graduation line at the center position of the camera lens comprises:
acquiring a preset area where the target scale mark is located;
determining a relative offset position of the edge line in the preset area when the edge line is in the preset area;
and determining the offset angle, the transverse offset and the longitudinal offset between the edge line and a target graduation line according to the relative offset position.
3. The cutting calibration method of claim 2 wherein said step of determining the relative offset position of said edge line in said predetermined area when said edge line is in said predetermined area comprises:
acquiring a gray value corresponding to each pixel point in the preset area;
taking the area, corresponding to the pixel point in the preset area, of the gray values meeting the preset gray matching condition as the edge line of the blade in the preset area;
and determining the relative distance between the edge line and the central area of the preset area to obtain the relative offset position of the edge line in the preset area.
4. The cut calibration method of claim 1, wherein the step of generating the camera lens associated target movement parameter based on the yaw angle, the horizontal offset, and/or the vertical offset comprises:
determining a horizontal movement amount corresponding to the camera lens according to the horizontal offset, wherein the horizontal movement amount comprises a horizontal transverse movement amount and/or a horizontal longitudinal movement amount;
and determining a first target movement parameter related to the camera lens according to the horizontal transverse movement amount and/or the horizontal longitudinal movement amount.
5. The cut calibration method of claim 4, wherein the step of determining the first target movement parameter associated with the camera lens based on the horizontal amount of lateral movement and/or the horizontal amount of longitudinal movement comprises:
determining a horizontal transverse movement parameter of the first target movement parameter according to the horizontal transverse movement amount, and/or determining a horizontal longitudinal movement parameter of the first target movement parameter according to the horizontal longitudinal movement amount, and determining the first target movement parameter according to the horizontal transverse movement parameter and/or the horizontal longitudinal movement parameter; or
And determining a linear movement parameter of the first target movement parameter according to the horizontal transverse movement amount and the horizontal longitudinal movement amount, and taking the linear movement parameter as the first target movement parameter.
6. The cut calibration method of claim 1, wherein the step of generating the camera lens associated target movement parameter based on the yaw angle, the horizontal offset, and/or the vertical offset comprises:
determining a rotation angle corresponding to the camera lens according to the deflection angle, determining a horizontal movement amount corresponding to the camera lens according to the horizontal offset, and/or determining a vertical movement amount corresponding to the camera lens according to the vertical offset;
and determining a second target movement parameter related to the camera lens according to the rotation angle, the horizontal movement amount and/or the vertical movement amount.
7. A cutting calibration apparatus, comprising: a riving knife, a light source, a camera adjustment axis, and a control circuit board, the control circuit board including a memory, a processor, and a cut calibration program stored on the memory and executable on the processor, the cut calibration program when executed by the processor implementing the steps of the cut calibration method of any of claims 1-6.
8. The cutting calibration device of claim 7, wherein the top end of the cutting calibration device is provided with a riving knife for performing a cutting action after calibration; the light source and the camera are arranged on the lower side of the riving knife, and the camera is used for collecting a blade line of the riving knife irradiated by the light source; the camera comprises a camera lens on the upper side and a camera support on the lower side, the camera lens is used for cutting calibration, and the camera support is connected with the camera adjusting shaft on the bottom; the camera adjusting shaft comprises a vertical adjusting shaft, a horizontal adjusting shaft and a rotating shaft, and is used for controlling the camera lens to execute cutting calibration actions.
9. A computer-readable storage medium, having a cut calibration program stored thereon, which when executed by a processor, performs the steps of the cut calibration method according to any one of claims 1-6.
CN202210478175.8A 2022-04-29 Cutting calibration method, apparatus, and computer-readable storage medium Active CN115019025B (en)

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