CN103100855A - Method of automatic drilling and riveting of large thin-wall parts - Google Patents

Method of automatic drilling and riveting of large thin-wall parts Download PDF

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Publication number
CN103100855A
CN103100855A CN 201110358117 CN201110358117A CN103100855A CN 103100855 A CN103100855 A CN 103100855A CN 201110358117 CN201110358117 CN 201110358117 CN 201110358117 A CN201110358117 A CN 201110358117A CN 103100855 A CN103100855 A CN 103100855A
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riveting
drilling
point
distance
rivet
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CN 201110358117
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Chinese (zh)
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周文强
李国进
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成都飞机工业(集团)有限责任公司
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Abstract

The invention discloses a method of automatic drilling and riveting of large thin-wall parts. The method includes the steps of mounting a displacement sensor on a drilling and riveting machine, inputting coordinate values of the parts, marking a first drilling and riveting point and a last drilling and riveting point on the parts, measuring coordinate values of the first drilling and riveting point and the last drilling and riveting point, comparing the actual distance and the theoretical distance of the first drilling and riveting point and the last drilling and riveting point, dividing the error according to proportion of the theoretical distance value of each drilling and riveting point if a difference-value of the actual distance and the theoretical distance is less than a pre-set error value, obtaining coordinate values through adding a theoretical value coordinate to the divided error value, and alarming when an abnormal state exists in the condition that the difference-value of the actual distance and the theoretical distance is larger than the pre-set error value range. According to the method of automatic drilling and riveting of the large thin-wall parts, drilling and riveting efficiency and quality of parts are improved, work efficiency is higher, and quality is more accurate and more reliable.

Description

大型薄壁零件自动钻铆的方法 Large thin-walled parts of the method of Automatic Rivet

技术领域 FIELD

[0001] 本发明属于铆接装配领域,特别是大型薄壁零件的铆接领域。 [0001] The present invention belongs to the field of riveting assembly, especially large areas of thin-walled parts riveting.

背景技术 Background technique

[0002] 在我国的飞机铆接装配过程中,以前一直使用手工铆接,几乎没有依靠零件数模使用自动钻铆设备进行自动铆接装配的,所以铆接质量和铆接效率一直都很低,而国外早就依据零件数模使用离线编程,全自动钻铆技术了,因此钻铆质量稳定可靠、效率高。 [0002] In China's aircraft riveting assembly process, has been used previously manual riveting, almost did not rely on the number of parts molded using automatic drilling and riveting equipment for automatic riveting assembly, so riveting riveting quality and efficiency has been low, and foreign long based on the number of parts used offline programming mode, automatic drilling and riveting technology, so the quality is stable and reliable drilling and riveting, high efficiency. 国内没有普及全自动钻铆主要有二个原因:一个是由于国外的技术封锁和全自动钻铆设备过于昂贵,在前几年中,国内几乎没有厂家购买到此类设备;第二个原因是由于我们的基础生产技术落后,在大型钣金类零件的生产过程中,变形量过大,生产出的零件外形与理论数模外形相差太大,从而不能依据零件理论数模进行离线编程,以致于不能进行全自动钻铆。 Domestic automatic drilling and riveting is not popular mainly for two reasons: one is due to the blockade of foreign technology and automated drilling and riveting equipment is too expensive, the previous few years, almost no domestic manufacturers to buy such a device; second reason is Since our basic backward production technology, in large part based sheet metal production process, excessive deformation, and the shape of the part produced theoretical mold shape much difference, and thus can not be off-line programming mode based on the theoretical number of parts, that We can not be in automatic drilling and riveting. 以前国内对大型零件的铆接过程如下: Before the riveting process for large parts of the country are as follows:

在钻铆工作开始前,人工用样板在零件需要进行钻铆的每一个地方作出标识,然后再把零件装到钻铆设备上,用手动方式把零件移动到需要进行钻铆的地方,再采用人工目测的方法检查零件是否处于法向位置,如不在法向位置就手动调整零件位置,直到认为其处于法向位置为止,最后才进行钻铆。 Rivet before work begins, to make an artificial model with a place for each part needs to be Rivet identification, and then attached to the drilling and riveting equipment parts, manually moved to place the parts required for the drilling and riveting, then using artificial visual way to check whether the parts are in the normal position, as it is not in the normal position of the manual adjustment of the position of the part, until that it is in the normal up position, and finally for drilling and riveting.

[0003] [0003]

发明内容: SUMMARY:

本发明的目的是提高零件的钻铆效率和钻铆质量,实现对大型薄壁机身蒙皮零件变形后不依靠理论数模进行自动钻铆的功能。 Object of the present invention is to improve the efficiency and parts Rivet Rivet quality, achieved without relying on the number of theoretical large thin-walled molded parts fuselage skin automatic modification function of drilling and riveting.

[0004] 实现本发明的步骤为: [0004] The step of implementing the present invention are:

1.在钻铆机上安装位移传感器; 1. Rivet displacement sensors mounted on the machine;

2.输入零件坐标值; 2. Enter the part coordinate value;

3.在零件上标记第一个钻铆点和最后一个钻铆点; 3. indicia on the first part and the last dot Rivet Rivet point;

4.测量第一个钻铆点坐标值; 4. Measurement of a drilling and riveting point coordinate values;

5.测量最后一个钻铆点坐标值; 5. Rivet last measurement point coordinate;

6.计算第一个钻铆点和最后一个钻铆点的实际距离,与理论距离进行比较,如果实际距离与理论距离的差值小于设定误差值,则按每个钻铆点的理论距离的大小按比例进行误差的均分钻铆,即钻铆坐标为理论值坐标加分配的误差值;如果实际的距离与理论距离的差值大于设定误差值范围内时,出现异常,报警。 6. The actual distance is calculated first and last Rivet Rivet point, compared with the theoretical distance, if the difference between the actual distance and the distance is less than the theoretical value setting error, press each theoretical point distance Rivet the sizes of the average scaled error rivet, i.e. rivet theoretical coordinate value plus error value assigned coordinates; if the difference between the actual distance to the theoretical distance greater than a set value within an error range, abnormal alarm.

[0005] 位移传感器用于使钻铆设备可测量、控制零件与钻铆设备之间的相对距离。 [0005] The displacement sensor may measure for drilling and riveting equipment, to control the relative distance between the drilling and riveting equipment parts. 在测量第一点和最后一个点的坐标值前应该进行法向调整,使这两个点处于法向位置才开始测量,在误差分配时,将误差值除以总距离,即计算出平均每一单位的误差值A,如果每一点与前一点的距离为L,那么此点在实际钻铆时与前一点的距离就为:L=L+LXA,这就是误差均分。 Prior to the measurement point and the first coordinate value of the last point should be adjusted to the process, so that the two-point method is started to measure the position error distribution when the error value is divided by the total distance, i.e. the average is calculated per a unit of the error value a, if the distance from each point to the previous point is L, then the actual drilling and riveting point and the distance to the previous point is: L = L + LXA, this is the average error.

[0006] 因为本发明的加工对象——大型钣金类零件的外形总是缓慢变化的,即在某一点的附近在正常状态下是不会突变的,并且同一种零件在同一个工装夹具上的变形量基本相同,所以误差按距离均分与理论钻铆点误差很小,符合钻铆工艺要求。 [0006] Since the object of the present invention - a large sheet metal Parts always slowly changing shape, i.e., in the vicinity of a point in a normal state is not a mutation, and the same parts in the same fixture, substantially the same amount of deformation, the distance error by the theoretical average error is small drilling and riveting points, drilling and riveting meet process requirements.

[0007] 在钻铆系统上采用上述方法进行自动钻铆具有效率高、准确可靠的优点,特别适合对易变形的大型薄壁零件进行自动钻铆。 [0007] With the above automatic drilling and riveting method on drilling and riveting system with high efficiency, accurate and reliable, especially suitable for large deformable thin-walled parts for automatic drilling and riveting.

[0008] 铆接在采用了自动钻铆机后,对一些平板类的零件进行了半自动化的机器压铆,一般是人工对点,手动移动零件,机器完成铆接动作的方法进行的。 [0008] In the caulking using the automatic riveting machine after drilling, some of the parts were flat type semi-automatic riveting machines pressure, generally of artificial point, manually moving parts of the machine to perform method of the caulking operation. 由于一些大型机身蒙皮类零件的变形量大,零件外形与零件的理论数模相差较大,所以一直无法对大曲率的大型机身蒙皮类零件进行自动钻铆。 Since the number of theoretical deformation modulus greater number of large fuselage skin type parts, replacement parts and the shape difference is large, a large curvature can not have a large fuselage skin type parts for automatic drilling and riveting. 采用了本发明的方法后,就能对大型机身蒙皮类零件进行全自动钻铆,工作效率更高、质量更准确可靠。 With the method of the present invention, the large fuselage skin can be fully automated Rivet type parts, higher productivity, quality, more accurate and reliable.

[0009] 与依靠零件数模进行自动钻铆的方法相比,这种方法不需要把复杂的零件外形数模输入计算机内进行处理,只需要输入铆接点的盡数,如每一点与前一点的理论距离、铆钉类型、是否注胶等信息,对零件的制造精度要求不高,对托架系统的刚性要求也较低,对操作人员的要求也相对较低,因此,操作简单,成本低,钻铆效率高、钻铆质量稳定可靠。 [0009] The method relies on the number of parts compared to analog automatic drilling and riveting, this method does not need to be processed within the computer mode input complex shape of the part number, enter just give all the caulking points, each point and the previous point as the theoretical distance, rivet type, whether plastic injection information, less precision manufacturing of parts, the rigidity requirements are lower bracket system, to operating personnel is also relatively low, therefore, simple operation, low cost high, drilling and riveting efficiency, stable and reliable quality drilling and riveting.

附图说明 BRIEF DESCRIPTION

[0010] 图1本发明的钻铆示意图1钻轴2激光位移传感器3压力脚4法向传感器5零件6第一个钻铆点7最后一个钻铆点8桁条。 [0010] Figure 1 a schematic view of the present invention is a drilling and riveting quill laser displacement sensor 2 3 4 normal pressure foot 5 sensor part 6 a first Rivet Rivet last point 7 point 8 stringer.

具体实施方式 detailed description

[0011] 以图1为例进行说明:图1中共18个钻铆点,以横向坐标的数据进行说明,第二点与第一点的理论距离为50毫米,其余的每一点都与前一点的理论距离为20毫米,那么总的理论距离为370毫米,每一个钻铆点都用同一种规格的铆钉。 [0011] In FIG. 1 as an example: 1 CCP 18 Rivet FIG point, the data will be described lateral coordinates, the theoretical distance of the second point and the first point is 50 mm, the rest are previous point every point theoretical distance of 20 mm, then the total theoretical distance of 370 mm, each drill point riveting with rivets same specifications. 按以下步骤进行: Perform the following steps:

1、在第一个钻铆点6的位置调整好法向; 1, in a first position of the drilling and riveting points 6 to adjust the method;

2、测量并记录下此时第一个钻铆点6的坐标值,假如为123.625 ; 2, this time measured and recorded under a first coordinate value of point 6 Rivet, if is 123.625;

3、在最后一个钻铆点7的位置调整好法向; 3, at the end of a drilling and riveting location point 7 of adjusting the normal;

4、测量并记录下此时位置7的坐标值,假如为498.725 ; 4, measure and record the coordinate value of the position 7 at this time, if is 498.725;

5、软件自动计算实际值:498.725-123.625=375.1 5, the software automatically calculates Found: 498.725-123.625 = 375.1

6、计算每毫米误差值 A:A= (375.1-370) /370=0.01378 6, an error value is calculated per mm A: A = (375.1-370) /370=0.01378

7、计算每二点与第一点的实际钻铆距离值:50+50X0.01378=50.689 7, each of the two points is calculated from the actual point of the first distance value Rivet: 50 + 50X0.01378 = 50.689

8、其余点与前一点的实际钻铆距离值:20+20X0.01378=20.276 8, a little before the remaining points with the actual distance value Rivet: 20 + 20X0.01378 = 20.276

9、计算完成后转换成钻铆程序,从第一点开始,钻铆坐标值依次为:123.625,174.314,194.59,214.866,......,最后一点,498.725。 9, the conversion into the calculations are finished drilling and riveting procedure, starting from the first point, coordinate values ​​were Rivet: 123.625,174.314,194.59,214.866, ......, finally, 498.725.

[0012] 按以上坐标将零件与桁条铆接。 [0012] coordinates according to the above caulking parts and stringers.

[0013] 其它坐标值可依此方法进行,如实际外形与理论外形相差太大,可将中间适当位置的钻铆点增加为测量点。 [0013] Other methods can be so coordinate values, such as the actual profile and theoretical profile much difference, may be increased to the point Rivet measurement point intermediate position.

Claims (2)

  1. 1.一种大型薄壁零件的自动钻铆方法,步骤为: 在钻铆机上安装位移传感器; 输入零件坐标值; 在零件上标记第一个钻铆点和最后一个钻铆点; 测量第一个钻铆点坐标值; 测量最后一个钻铆点坐标值; 计算第一个钻铆点和最后一个钻铆点的实际距离,与理论距离进行比较,如果实际距离与理论距离的差值小于设定误差值,则按每个钻铆点的理论距离的大小按比例误差的均分进行钻铆,即钻铆坐标为理论值坐标加分配的误差值;如果实际的距离与理论距离的差值大于设定误差值范围内时,出现异常,报警。 A large-scale thin-walled parts Automatic Rivet method, the steps of: drilling and riveting machine is mounted in the displacement sensor; riveting point marker on the first part and the last dot Rivet drilling;; measurement first coordinate value input part drill riveting point coordinate values; the last measuring point coordinate rivet; calculating a first and last rivet rivet actual distance point, compared with the theoretical distance, if the difference between the actual and the theoretical distance less than the distance provided errors between one value, the size of each theoretical point distance rivet sharing carried out in the drilling and riveting proportional error, i.e. error value rivet coordinate value plus the theoretical coordinates assigned; if the difference between the actual distance and the distance of the theoretical when the error value is greater than the set range, abnormal alarm.
  2. 2.根据权利要求1所述的一种大型薄壁零件的自动钻铆方法,其特征在于,可在第一个钻铆点和最后一个钻铆点之间增加测量点。 According to claim a large, thin-walled parts of the automatic drilling and riveting 1, characterized in that the riveting can be drilled in the first and last measurement point between drilling and riveting points increase.
CN 201110358117 2011-11-14 2011-11-14 Method of automatic drilling and riveting of large thin-wall parts CN103100855A (en)

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CN103587719A (en) * 2013-11-11 2014-02-19 中航沈飞民用飞机有限责任公司 Full-automatic drilling and riveting positioning method of flat workpiece
CN103587719B (en) * 2013-11-11 2016-01-06 中航沈飞民用飞机有限责任公司 Rivet automatic plate member positioning method
CN104200092A (en) * 2014-08-28 2014-12-10 上海飞机制造有限公司 Multi-pose modeling method for deformation of aircraft thin-wall piece during automatic drilling and automatic riveting
CN104217076A (en) * 2014-08-28 2014-12-17 苏州全丰精密机械有限公司 Method and device for riveting positioning by utilizing DXF (Drawing Exchange Format) drawing
CN104200092B (en) * 2014-08-28 2017-06-09 上海飞机制造有限公司 An aircraft automatic drilling and riveting thin-walled deformable Pose Modeling
CN104217076B (en) * 2014-08-28 2017-12-22 苏州全丰精密机械有限公司 Dxf format using a method and apparatus for positioning the caulking drawings
CN105136048A (en) * 2015-08-24 2015-12-09 成都飞机工业(集团)有限责任公司 Method for detecting quality of airplane covering-riveting assembling surface
CN105182799A (en) * 2015-09-24 2015-12-23 成都飞机工业(集团)有限责任公司 Programming method for airplane thin-wall curved surface skin automatic drilling and riveting
CN106767397A (en) * 2016-11-21 2017-05-31 上海航天精密机械研究所 Automatic drill-rivet processing data deviation measurement and compensation method

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