CN116673801A - Probe installation error compensation method for coordinate system calibration of workpiece in composite grinding center and application - Google Patents
Probe installation error compensation method for coordinate system calibration of workpiece in composite grinding center and application Download PDFInfo
- Publication number
- CN116673801A CN116673801A CN202310902768.7A CN202310902768A CN116673801A CN 116673801 A CN116673801 A CN 116673801A CN 202310902768 A CN202310902768 A CN 202310902768A CN 116673801 A CN116673801 A CN 116673801A
- Authority
- CN
- China
- Prior art keywords
- probe
- installation error
- coordinate system
- calibration
- cylindrical surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
本发明属于磨削技术领域，具体公开一种复合磨削中心工件坐标系标定的探针安装误差补偿方法及应用，所述方法为：S1：采集探针安装误差的标定数据，所述标定数据包括探针接触标准件时的机床坐标值；S2：利用S1采集到的标定数据对探针安装误差进行标定，得到探针安装误差；S3：基于S2得到的探针安装误差，对用于工件坐标系标定使用的机床坐标值进行补偿。本发明提供的方法补偿精度高，能够有效提高复合磨削中心工件坐标系的标定精度，满足高精度复合磨削中心工件对磨削尺寸精度的需求。
The invention belongs to the field of grinding technology, and specifically discloses a probe installation error compensation method for calibration of a workpiece coordinate system in a compound grinding center and its application. The method is as follows: S1: collecting calibration data of probe installation errors, the calibration data Including the coordinate value of the machine tool when the probe touches the standard part; S2: Use the calibration data collected by S1 to calibrate the probe installation error to obtain the probe installation error; S3: Based on the probe installation error obtained by S2, for the workpiece The machine tool coordinate value used for coordinate system calibration is compensated. The method provided by the invention has high compensation accuracy, can effectively improve the calibration accuracy of the workpiece coordinate system of the composite grinding center, and meets the requirements of the workpiece of the high-precision composite grinding center on the grinding dimensional accuracy.
Description
技术领域technical field
本发明属于磨削技术领域，具体涉及一种复合磨削中心工件坐标系标定的探针安装误差补偿方法及应用。The invention belongs to the technical field of grinding, and in particular relates to a probe installation error compensation method for calibrating a workpiece coordinate system of a compound grinding center and its application.
背景技术Background technique
复合磨削中心是一种满足回转体零件精密高效加工需求的复合机床，具备磨削工具的自动交换能力，可以实现多种磨削技术的复合化应用，在一次装夹定位中完成零件多种特征的精密、高效加工，具体包括外圆面、内圆面、端面、外锥面、内锥面等特征的磨削加工。The compound grinding center is a compound machine tool that meets the precision and high-efficiency processing requirements of rotary parts. It has the ability to automatically exchange grinding tools, and can realize the compound application of various grinding technologies, and complete various parts in one clamping and positioning. Precise and high-efficiency machining of features, specifically including grinding of features such as outer circular surfaces, inner circular surfaces, end faces, outer tapered surfaces, and inner tapered surfaces.
在进行外锥面和内锥面的磨削时，砂轮在其基准位置修整，然后回转相应角度，使砂轮表面与锥面表面平行再进行磨削加工。为保证工件坐标系标定的准确性，尤其是回转角度后工件坐标系变换的精度，需要标定磨削参考点与转塔式砂轮架回转中心的位置关系。When grinding the outer cone surface and the inner cone surface, the grinding wheel is trimmed at its reference position, and then rotated at a corresponding angle to make the surface of the grinding wheel parallel to the surface of the cone surface before grinding. In order to ensure the accuracy of the calibration of the workpiece coordinate system, especially the accuracy of the transformation of the workpiece coordinate system after the rotation angle, it is necessary to calibrate the positional relationship between the grinding reference point and the center of rotation of the turret wheelhead.
在磨削参考点与转塔式砂轮架回转中心的位置关系的常规标定过程中，首先需要确定探针参考点与转塔式砂轮架回转中心的相对位置关系，然后通过探针参考点与磨削参考点接触工件同一位置，间接计算得出磨削参考点与转塔式砂轮架回转中心的位置关系。在此过程中，探针安装误差对计算结果产生直接影响，对工件的尺寸加工精度意义重大。In the routine calibration process of the positional relationship between the grinding reference point and the center of rotation of the turret wheelhead, it is first necessary to determine the relative positional relationship between the probe reference point and the center of rotation of the turret wheelhead, and then through the probe reference point and the The grinding reference point touches the same position of the workpiece, and the positional relationship between the grinding reference point and the center of rotation of the turret grinding wheel frame is obtained through indirect calculation. In this process, the installation error of the probe has a direct impact on the calculation results, which is of great significance to the dimensional machining accuracy of the workpiece.
专利CN107953216A公开了一种转塔式复合磨床工件坐标系变换方法，具体步骤是：(1)确定探针基准位置与转塔式砂轮架回转中心的相对位置关系；(2)利用砂轮参考点与探针的相对位置关系，间接确定外圆砂轮或端面外圆砂轮的参考点基准位置与转塔式砂轮架回转中心的相对位置关系；(3)利用内圆砂轮参考点基准位置与外圆砂轮或端面外圆砂轮的参考点基准位置的相对关系，间接确定内圆砂轮参考点基准位置与转塔式砂轮架回转中心的相对位置关系；(4)求任一砂轮从基准角度回转指定角度，工件坐标系变换值。该专利在工件坐标系标定过程中忽视了探针、砂轮等组件的安装误差，导致工件坐标系的标定结果受机床装配误差的影响，其精度无法保证。Patent CN107953216A discloses a method for transforming the workpiece coordinate system of a turret-type compound grinding machine. The specific steps are: (1) determine the relative positional relationship between the reference position of the probe and the center of rotation of the turret-type grinding wheel frame; (2) use the grinding wheel reference point and The relative positional relationship of the probe indirectly determines the relative positional relationship between the reference point reference position of the outer round grinding wheel or the end face outer round grinding wheel and the relative positional relationship between the center of rotation of the turret grinding wheel frame; (3) using the reference point reference position of the inner round grinding wheel Or the relative relationship between the reference point datum position of the outer round grinding wheel on the end face, and indirectly determine the relative positional relationship between the reference point datum position of the inner round grinding wheel and the center of rotation of the turret wheel frame; Workpiece coordinate system transformation value. The patent ignores the installation errors of probes, grinding wheels and other components during the calibration of the workpiece coordinate system, resulting in the calibration results of the workpiece coordinate system being affected by the assembly error of the machine tool, and its accuracy cannot be guaranteed.
常规探针的安装误差在Z方向可以满足高精度复合磨削中心对工件坐标系标定精度需求，但是在X方向无法满足该需求。本发明提出的方法可以有效提高复合磨削中心工件坐标系标定精度，满足实际加工需求。The installation error of the conventional probe can meet the calibration accuracy requirements of the workpiece coordinate system of the high-precision compound grinding center in the Z direction, but cannot meet the requirements in the X direction. The method proposed by the invention can effectively improve the calibration accuracy of the workpiece coordinate system of the compound grinding center and meet the actual processing requirements.
发明内容Contents of the invention
针对现有技术中存在的问题和不足，本发明的目的旨在提供一种复合磨削中心工件坐标系标定的探针安装误差补偿方法及应用。In view of the problems and deficiencies in the prior art, the object of the present invention is to provide a probe installation error compensation method and application for calibration of workpiece coordinate system of compound grinding center.
为实现发明目的，本发明采用的技术方案如下：For realizing the purpose of the invention, the technical scheme adopted in the present invention is as follows:
本发明提供一种复合磨削中心工件坐标系标定的探针安装误差补偿方法，包括以下步骤：The invention provides a probe installation error compensation method for calibration of a workpiece coordinate system of a compound grinding center, comprising the following steps:
S1：采集探针安装误差的标定数据，所述标定数据包括探针接触标准件时的机床坐标值；S1: Collect calibration data of the probe installation error, the calibration data includes the machine tool coordinate value when the probe touches the standard part;
S2：利用S1采集到的标定数据对探针安装误差进行标定，得到探针安装误差；S2: Use the calibration data collected in S1 to calibrate the probe installation error to obtain the probe installation error;
S3：基于S2得到的探针安装误差，对用于工件坐标系标定使用的机床坐标值进行补偿。S3: Based on the probe installation error obtained in S2, the machine tool coordinates used for calibration of the workpiece coordinate system are compensated.
根据所述的复合磨削中心工件坐标系标定的探针安装误差补偿方法，进一步地，步骤S1的具体过程为：According to the probe installation error compensation method calibrated by the workpiece coordinate system of the compound grinding center, further, the specific process of step S1 is:
S101：设探针的球心为探针参考点，平行于机床坐标系XZ平面且经过标准件轴心的平面为P，探针参考点到平面P的距离为探针的安装误差；S101: Set the sphere center of the probe as the probe reference point, the plane parallel to the XZ plane of the machine tool coordinate system and passing through the axis of the standard part is P, and the distance from the probe reference point to the plane P is the installation error of the probe;
S102：将标准件安装在机床头架与尾架之间的顶尖上，调整标准件的姿态，使标准件的轴心与机床头架的回转中心重合；S102: Install the standard part on the top between the machine tool headstock and the tailstock, adjust the attitude of the standard part so that the axis of the standard part coincides with the rotation center of the machine tool headstock;
S103：回转转塔式砂轮架的回转轴，使探针处于基准角度位置，探针分别接触标准件的圆柱面A和圆柱面B，记录信号触发时的机床坐标值，分别记为(XA1,ZA1)和(XB1,ZB1)。S103: Rotate the rotary shaft of the turret-type grinding wheel head, so that the probe is at the reference angle position, and the probe touches the cylindrical surface A and cylindrical surface B of the standard part respectively, and records the machine tool coordinates when the signal is triggered, which are respectively recorded as (X A1 , Z A1 ) and (X B1 , Z B1 ).
根据所述的复合磨削中心工件坐标系标定的探针安装误差补偿方法，进一步地，步骤S2的具体过程为：According to the probe installation error compensation method calibrated by the workpiece coordinate system of the compound grinding center, further, the specific process of step S2 is:
S201：设标准件的圆柱面A的直径为DA，圆柱面B的直径为DB，探针的测头直径为DT，经过探针参考点且垂直于标准件轴心的直线为E，则在探针接触标准件的圆柱面B时，直线E与平面P的线面夹角α为：S201: Let the diameter of the cylindrical surface A of the standard part be D A , the diameter of the cylindrical surface B be D B , the diameter of the measuring head of the probe be D T , and the straight line passing through the reference point of the probe and perpendicular to the axis of the standard part be E , then when the probe touches the cylindrical surface B of the standard part, the angle α between the line E and the plane P is:
S202：利用直线E与平面P的线面夹角α，得到探针参考点到平面P的距离，即探针的安装误差σ为：S202: Using the line-surface angle α between the straight line E and the plane P, the distance from the reference point of the probe to the plane P is obtained, that is, the installation error σ of the probe is:
根据所述的复合磨削中心工件坐标系标定的探针安装误差补偿方法，进一步地，步骤S3的具体过程为：According to the probe installation error compensation method calibrated by the workpiece coordinate system of the compound grinding center, further, the specific process of step S3 is:
S301：选择需要进行加工的样件，将样件安装在机床头架与尾架之间的顶尖上，并调整样件的姿态，使样件的轴心与机床头架的回转中心重合；S301: Select the sample to be processed, install the sample on the top between the headstock and the tailstock, and adjust the posture of the sample so that the axis of the sample coincides with the center of rotation of the machine headstock;
S302：回转转塔式砂轮架的回转轴，使探针处于基准角度位置，将探针接触样件的圆柱面C，记录信号触发时的机床坐标值，记为(XC1,ZC1)；S302: Rotate the rotary axis of the turret grinding wheel head so that the probe is at the reference angle position, touch the probe to the cylindrical surface C of the sample, and record the machine coordinate value when the signal is triggered, which is recorded as (X C1 , Z C1 ) ;
S303：测量样件的圆柱面C的直径，记为DC；S303: measure the diameter of the cylindrical surface C of the sample, denoted as D C ;
S304：将探针接触样件的圆柱面C的机床坐标值记为(XC2,ZC2)，基于所述探针的安装误差σ，则：S304: Record the machine tool coordinate value of the cylindrical surface C where the probe touches the sample as (X C2 , Z C2 ), based on the installation error σ of the probe, then:
ZC2＝ZC1。Z C2 =Z C1 .
根据所述的复合磨削中心工件坐标系标定的探针安装误差补偿方法，进一步地，步骤S1中所述标准件具备测量基准件标准的阶梯轴结构，包括两个高精度圆柱面A和B，探针可与两个圆柱面接触发信，其中，圆柱面A和圆柱面B的中心线与标准件的轴心重合，圆柱面A的直径小于圆柱面B的直径。According to the probe installation error compensation method calibrated by the workpiece coordinate system of the compound grinding center, further, the standard part in step S1 has a stepped axis structure for measuring the standard part, including two high-precision cylindrical surfaces A and B , the probe can be in contact with two cylindrical surfaces to send a signal, wherein the centerlines of cylindrical surface A and cylindrical surface B coincide with the axis of the standard part, and the diameter of cylindrical surface A is smaller than that of cylindrical surface B.
本发明第二方面还提供一种第一方面所述的探针安装误差补偿方法在复合磨削中心工件坐标系标定中的应用。The second aspect of the present invention also provides an application of the probe installation error compensation method described in the first aspect in the calibration of the workpiece coordinate system of the compound grinding center.
与现有技术相比，本发明的有益效果如下：Compared with the prior art, the beneficial effects of the present invention are as follows:
1.本发明提出的复合磨削中心工件坐标系标定的探针安装误差补偿方法实现思路清晰，方法中所需要确定的探针安装误差，主要通过机床运动坐标值和尺寸测量值计算得到，获取途径便捷，机床操作人员即可实现。1. The probe installation error compensation method for the calibration of the workpiece coordinate system of the compound grinding center proposed by the present invention has a clear idea, and the probe installation error to be determined in the method is mainly obtained by calculating the machine tool motion coordinate value and the dimension measurement value, and obtaining The way is convenient, and the machine operator can realize it.
2.本发明提出的复合磨削中心工件坐标系标定的探针安装误差补偿方法，补偿精度高，能够有效提高复合磨削中心工件坐标系的标定精度，满足高精度复合磨削中心工件对磨削尺寸精度的需求。2. The probe installation error compensation method for the calibration of the workpiece coordinate system of the composite grinding center proposed by the present invention has high compensation accuracy, can effectively improve the calibration accuracy of the workpiece coordinate system of the composite grinding center, and satisfies the requirements of high-precision composite grinding center workpieces. Cutting dimensional accuracy requirements.
附图说明Description of drawings
图1是本发明复合磨削中心的示意图，其中1为外圆砂轮、2为端面外圆砂轮、3为转塔式砂轮架、4为内圆砂轮、5为探针、6为工作台、7为头架、8为标准件、9为尾架；Fig. 1 is a schematic diagram of the compound grinding center of the present invention, wherein 1 is an outer round grinding wheel, 2 is an end face outer round grinding wheel, 3 is a turret type grinding wheel stand, 4 is an inner round grinding wheel, 5 is a probe, 6 is a workbench, 7 is a headstock, 8 is a standard part, and 9 is a tailstock;
图2是本发明用于探针安装误差标定数据收集所用的标准件示意图；Fig. 2 is a schematic diagram of standard parts used in the present invention for probe installation error calibration data collection;
图3是本发明用于标定探针安装误差的几何关系图；Fig. 3 is the geometric relationship diagram for calibrating the installation error of the probe in the present invention;
图4是本发明用于探针安装误差标定数据收集时探针接触标准件位置关系示意图，其中(a)为探针贴合标准件外圆A，(b)为探针贴合标准件外圆B；Fig. 4 is a schematic diagram of the positional relationship between the probe and the standard part when the probe is used for the calibration data collection of the probe installation error in the present invention, wherein (a) is the outer circle A of the probe fitting the standard part, and (b) is the outer circle A of the probe fitting the standard part circle B;
图5是本发明中探针5与样件10接触的示意图；Fig. 5 is the schematic diagram that probe 5 contacts with sample 10 among the present invention;
图6是本发明中用于验证工件坐标系标定精度提高效果的位置关系示意图。Fig. 6 is a schematic diagram of the positional relationship used to verify the effect of improving the calibration accuracy of the workpiece coordinate system in the present invention.
具体实施方式Detailed ways
为了使得本领域技术人员能够更加清楚地了解本发明的技术方案，以下将结合具体的实施例详细说明本发明的技术方案。应当强调的是，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。In order to enable those skilled in the art to understand the technical solution of the present invention more clearly, the technical solution of the present invention will be described in detail below in conjunction with specific embodiments. It should be emphasized that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
本发明复合磨削中心的结构示意图如图1所示，转塔式砂轮架3由回转轴直接驱动，砂轮架上配置有外圆砂轮1、内圆砂轮4、端面外圆砂轮2和探针5，机床头架7和尾架9安装于工作台6上，标准件8安装于在机床头架7与尾架9之间的顶尖上。The structural diagram of the compound grinding center of the present invention is shown in Figure 1. The turret type grinding wheel frame 3 is directly driven by the rotary shaft, and the grinding wheel frame is equipped with an outer round grinding wheel 1, an inner round grinding wheel 4, an end face outer round grinding wheel 2 and a probe. 5. The headstock 7 and tailstock 9 of the machine tool are installed on the workbench 6, and the standard part 8 is installed on the top between the headstock 7 and the tailstock 9 of the machine tool.
实施例1Example 1
一种提高如图1所示的复合磨削中心工件坐标系标定精度的探针安装误差补偿方法，所述方法包括以下步骤：A probe installation error compensation method for improving the calibration accuracy of a workpiece coordinate system of a compound grinding center as shown in Figure 1, the method comprising the following steps:
S1：采集探针安装误差σ的标定数据，所述标定数据包括探针接触标准件时的机床坐标值；S1: collect the calibration data of the probe installation error σ, the calibration data includes the machine tool coordinate value when the probe touches the standard part;
S101：设探针5的球心为探针参考点T，平行于机床坐标系XZ平面且经过标准件8(见图2)轴心的平面为P，探针参考点T到平面P的距离为探针5的安装误差σ(见图3)；S101: Set the sphere center of the probe 5 as the probe reference point T, the plane parallel to the XZ plane of the machine tool coordinate system and passing through the axis center of the standard part 8 (see Figure 2) is P, and the distance from the probe reference point T to the plane P is the installation error σ of the probe 5 (see Figure 3);
S102：将标准件8安装在机床头架7与尾架9之间的顶尖上，并调整标准件8的姿态，使标准件8的轴心与机床头架7的回转中心重合；S102: Install the standard part 8 on the top between the headstock 7 and the tailstock 9, and adjust the posture of the standard part 8 so that the axis of the standard part 8 coincides with the rotation center of the machine headstock 7;
S103：回转复合磨削中心转塔式砂轮架3的回转轴，使探针5处于基准角度位置，探针5分别接触标准件8的圆柱面A和圆柱面B，分别如图4(a)和图4(b)所示，记录信号触发时的机床坐标值，分别记为(XA1,ZA1)和(XB1,ZB1)。S103: Rotate the rotary shaft of the turret-type grinding wheel frame 3 of the rotary compound grinding center, so that the probe 5 is at the reference angle position, and the probe 5 contacts the cylindrical surface A and the cylindrical surface B of the standard part 8, respectively, as shown in Figure 4(a) As shown in Figure 4(b), the machine tool coordinates when the recording signal is triggered are recorded as (X A1 , Z A1 ) and (X B1 , Z B1 ) respectively.
S2：利用S1采集到的数据对探针安装误差进行标定，得到探针安装误差σ；S2: Use the data collected in S1 to calibrate the probe installation error to obtain the probe installation error σ;
S201：设标准件8的圆柱面A的直径为DA，圆柱面B的直径为DB，探针5的测头直径为DT，经过探针5参考点T且垂直于标准件8轴心的直线为E，则在探针5接触标准件8的圆柱面B时，直线E与平面P的线面夹角α如式(1)(见图3)：S201: Set the diameter of the cylindrical surface A of the standard part 8 as D A , the diameter of the cylindrical surface B as D B , and the diameter of the measuring head of the probe 5 as D T , passing through the reference point T of the probe 5 and perpendicular to the axis of the standard part 8 The straight line of the center is E, then when the probe 5 touches the cylindrical surface B of the standard part 8, the line-surface angle α between the straight line E and the plane P is as in formula (1) (see Figure 3):
S202：利用直线E与平面P的线面夹角α，确定探针5参考点T到平面P的距离，即探针5的安装误差σ如式(2)所示：S202: Using the line-plane angle α between the straight line E and the plane P, determine the distance from the reference point T of the probe 5 to the plane P, that is, the installation error σ of the probe 5 is shown in formula (2):
S3：基于得到的探针安装误差σ，对用于工件坐标系标定使用的机床坐标值进行补偿，实现复合磨削中心工件坐标系标定精度的提高；S3: Based on the obtained probe installation error σ, the machine tool coordinates used for calibration of the workpiece coordinate system are compensated to improve the calibration accuracy of the workpiece coordinate system of the compound grinding center;
S301：选择需要进行加工的样件10，将样件10安装在机床头架7与尾架9之间的顶尖上，并调整样件10的姿态，使样件10的轴心与机床头架7的回转中心重合；S301: Select the sample 10 that needs to be processed, install the sample 10 on the top between the machine headstock 7 and the tailstock 9, and adjust the posture of the sample 10 so that the axis of the sample 10 is in line with the machine tool headstock The center of rotation of 7 coincides;
S302：回转转塔式砂轮架3的回转轴，使探针5处于基准角度位置，将探针5接触样件10圆柱面C(见图5)，记录信号触发时的机床坐标值，记为(XC1,ZC1)；S302: Rotate the rotary shaft of the turret grinding wheel head 3 so that the probe 5 is at the reference angle position, touch the probe 5 to the cylindrical surface C of the sample 10 (see Figure 5), record the machine tool coordinate value when the signal is triggered, and record is (X C1 , Z C1 );
S303：采用外径千分尺测量样件10的圆柱面C的直径，记为DC；S303: Measure the diameter of the cylindrical surface C of the sample 10 with an outer micrometer, which is denoted as D C ;
S304：将探针5接触样件10圆柱面C的机床坐标值记为(XC2,ZC2)，基于所述探针的安装误差σ，则(XC2,ZC2)如式(3)所示：S304: Record the machine tool coordinate value where the probe 5 touches the cylindrical surface C of the sample 10 as (X C2 , Z C2 ), based on the installation error σ of the probe, then (X C2 , Z C2 ) is as in formula (3) Shown:
ZC2＝ZC1 (3)。Z C2 = Z C1 (3).
实施例2Example 2
本实施例主要针对实施例1中所述探针安装误差补偿方法对工件坐标系标定精度的提升效果进行验证。This embodiment is mainly aimed at verifying the improvement effect of the probe installation error compensation method described in embodiment 1 on the calibration accuracy of the workpiece coordinate system.
设探针5的安装误差σ＝5mm，样件10圆柱面C的直径DC＝50mm，探针的测头直径DT＝2mm。设探针5参考点T到转塔式砂轮架3回转轴在机床坐标系X方向的距离为da＝600mm，外圆砂轮磨削参考点到转塔式砂轮架3回转轴在机床坐标系X方向的距离为db＝500mm。设以样件10圆柱面C建立工件坐标系原点，工件坐标系相对于机床坐标系在X负方向偏移dc＝300mm(见图6)。It is assumed that the installation error of the probe 5 is σ=5 mm, the diameter D C of the cylindrical surface C of the sample 10 is 50 mm, and the diameter D T of the probe head is 2 mm. Let the distance from the reference point T of the probe 5 to the rotary axis of the turret wheel frame 3 in the X direction of the machine tool coordinate system be d a = 600 mm, and the reference point for grinding the outer circular grinding wheel to the rotary axis of the turret wheel frame 3 is in the machine tool coordinate system The distance in the X direction is d b =500mm. Assume that the origin of the workpiece coordinate system is established with the cylindrical surface C of the sample 10, and the workpiece coordinate system is offset d c =300mm in the negative X direction relative to the machine tool coordinate system (see Figure 6).
计算探针5接触样件10圆柱面C时X方向的机床坐标值为Xc:Calculate the machine tool coordinate value X c in the X direction when the probe 5 contacts the sample 10 cylindrical surface C:
设探针安装误差补偿前后，使用探针进行工件坐标系标定时，X向的误差分别为εo和εc：Before and after the probe installation error compensation, when the probe is used to calibrate the workpiece coordinate system, the errors in the X direction are ε o and ε c respectively:
εo＝|Xc-DT-(da-db)*2+dc*2|＝|-398.9706-2-200+300*2|≈0.9706mmε o ＝|X c -D T -(d a -d b )*2+d c *2|＝|-398.9706-2-200+300*2|≈0.9706mm
εo≈0.9706mm>εc≈0.0000mmε o ≈0.9706mm>ε c ≈0.0000mm
由于探针安装误差补偿前的工件坐标系标定误差εo远远大于补偿后的工件坐标系标定误差εc，证明本发明提供的方法能够有效提高复合磨削中心工件坐标系标定精度。Since the calibration error ε o of the workpiece coordinate system before the probe installation error compensation is far greater than the calibration error ε c of the workpiece coordinate system after compensation, it is proved that the method provided by the invention can effectively improve the calibration accuracy of the workpiece coordinate system of the compound grinding center.
上述实施例为本发明的具体实施方式，但本发明的实施方式并不受上述实施例的限制，其它任何不超出本发明设计思路组合、改变、修饰、替代、简化，均落入本发明的保护范围之内。The above-mentioned embodiment is the specific implementation mode of the present invention, but the implementation mode of the present invention is not limited by the above-mentioned embodiment, and any other combinations, changes, modifications, substitutions, and simplifications that do not exceed the design concept of the present invention all fall into the scope of the present invention. within the scope of protection.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310902768.7A CN116673801A (en) | 2023-07-21 | 2023-07-21 | Probe installation error compensation method for coordinate system calibration of workpiece in composite grinding center and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310902768.7A CN116673801A (en) | 2023-07-21 | 2023-07-21 | Probe installation error compensation method for coordinate system calibration of workpiece in composite grinding center and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116673801A true CN116673801A (en) | 2023-09-01 |
Family
ID=87791184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310902768.7A Pending CN116673801A (en) | 2023-07-21 | 2023-07-21 | Probe installation error compensation method for coordinate system calibration of workpiece in composite grinding center and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116673801A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8519134D0 (en) * | 1984-08-29 | 1985-09-04 | Gen Electric | Stylus type touch probe system |
| US6225771B1 (en) * | 1999-12-01 | 2001-05-01 | General Electric Company | Probe chord error compensation |
| EP1128156A1 (en) * | 2000-02-10 | 2001-08-29 | General Electric Company | Method and apparatus for automatically compensating for measurement error |
| JP2006062031A (en) * | 2004-08-27 | 2006-03-09 | Niigata Machine Techno Co Ltd | Automatic centering jig for machine tools |
| KR20090077673A (en) * | 2008-01-11 | 2009-07-15 | 파나소닉 주식회사 | Shape measuring method |
| DE102015013770A1 (en) * | 2014-10-23 | 2016-04-28 | Cognex Corporation | System and method for calibrating an image processing system with respect to a probe |
| CN107303643A (en) * | 2016-04-19 | 2017-10-31 | 大隈株式会社 | The error identification method and error identification system of lathe |
| CN110186405A (en) * | 2019-05-30 | 2019-08-30 | 华中科技大学无锡研究院 | Blade profile contact type scanning probe surveys ball three-dimensional radius compensation and cross compensation point correcting method |
| CN110702027A (en) * | 2019-08-27 | 2020-01-17 | 广东工业大学 | Miniature roundness measuring instrument and measuring method based on complex beam angle sensor |
-
2023
- 2023-07-21 CN CN202310902768.7A patent/CN116673801A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8519134D0 (en) * | 1984-08-29 | 1985-09-04 | Gen Electric | Stylus type touch probe system |
| US6225771B1 (en) * | 1999-12-01 | 2001-05-01 | General Electric Company | Probe chord error compensation |
| EP1128156A1 (en) * | 2000-02-10 | 2001-08-29 | General Electric Company | Method and apparatus for automatically compensating for measurement error |
| JP2006062031A (en) * | 2004-08-27 | 2006-03-09 | Niigata Machine Techno Co Ltd | Automatic centering jig for machine tools |
| KR20090077673A (en) * | 2008-01-11 | 2009-07-15 | 파나소닉 주식회사 | Shape measuring method |
| DE102015013770A1 (en) * | 2014-10-23 | 2016-04-28 | Cognex Corporation | System and method for calibrating an image processing system with respect to a probe |
| CN107303643A (en) * | 2016-04-19 | 2017-10-31 | 大隈株式会社 | The error identification method and error identification system of lathe |
| CN110186405A (en) * | 2019-05-30 | 2019-08-30 | 华中科技大学无锡研究院 | Blade profile contact type scanning probe surveys ball three-dimensional radius compensation and cross compensation point correcting method |
| CN110702027A (en) * | 2019-08-27 | 2020-01-17 | 广东工业大学 | Miniature roundness measuring instrument and measuring method based on complex beam angle sensor |
Non-Patent Citations (2)
| Title |
|---|
| 喻志响: "轴套零件数字化无人值守加工关键技术研究", 中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑, 15 February 2016 (2016-02-15), pages 029 - 183 * |
| 胡东红;李朗;张玲;马已力;王平江;: "径向量仪校正工件坐标原点的方法", 伺服控制, no. 01, 15 February 2011 (2011-02-15), pages 29 - 65 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107253102A (en) | A kind of precision grinding machining method of special-shaped thin wall labyrinth workpiece | |
| CN102151866B (en) | Three-ball-based multistation coordinate unifying method of processing center | |
| CN108723414B (en) | The Machining Technology of Guaranteeing the Position Tolerance of the Main Hole System of the Precision Box Parts of the CNC Machine Tool | |
| CN109211166B (en) | An on-board fast alignment device and alignment method for cabin structural parts based on wall thickness and shape constraints | |
| CN106493399B (en) | A kind of method of 180 ° of processing precise parts of horizontal jig boring machine worktable rotary | |
| CN103197601B (en) | Cutter shaft swings five-coordinate numerally controlled machine tool pendulum length assay method | |
| CN109648368B (en) | Workpiece coordinate system setting method for eliminating rotation error of numerical control machining workbench | |
| CN114012585B (en) | Polishing point position calibration method for double-pendulum-shaft type five-axis magnetorheological machine tool | |
| CN107791521B (en) | Centering system and method for three-dimensional printing equipment nozzle and numerical control equipment cutter | |
| CN105290968B (en) | A centering method for workpiece spindle and tool system of horizontal precision grinding and polishing machine tool | |
| CN110487210B (en) | Measurement method of honeycomb core surface profile | |
| CN110014332A (en) | A high-efficiency precision grinding method for large-size axle variable rail external splines | |
| CN115922439A (en) | Testing Method for Machining Accuracy of CNC Five-Axis Machine Tool | |
| CN117308848A (en) | Method for detecting machining precision of large-size gear | |
| CN104266570A (en) | Station axis precision measuring and adjusting method for disc type multi-station machine tool | |
| CN111069977A (en) | Surface fitting, precision machining process and part size measuring method suitable for machining center | |
| CN114700563A (en) | Herringbone tooth centering measuring tool and herringbone tooth machining method | |
| CN111408861A (en) | Five-axis laser equipment RTCP calibration equipment and method | |
| CN107900781B (en) | Calibration device and calibration method of contact online detection system for lathes | |
| CN110645935B (en) | Accurate calibration method for installation offset of integrated displacement sensor of numerical control rotating shaft | |
| CN116673801A (en) | Probe installation error compensation method for coordinate system calibration of workpiece in composite grinding center and application | |
| CN207982928U (en) | The caliberating device of contact on-line detecting system for lathe | |
| CN112276571B (en) | A kind of inclined hole machining method | |
| CN114859820A (en) | On-machine measurement data compensation method and system for multi-axis CNC machine tools | |
| CN114289744B (en) | Tool setting method of vertical lathe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |