汽車焊接夾具的設計中英文翻譯

1、廣西工學院鹿山學院 畢業(yè)設計（論文）外文翻譯（附外文原文） 題 目： 汽車焊接夾具的設計 系 別： 機械工程系 專業(yè)班級： 數控092班 姓 名： 楊弘宇 學 號： 20091162 指導教師： 李建寧 二 年 月 日the design of the welding junetion clamp of motorcarabstract the text introduces the design method and construction of the welding junction clamp of motorcar. keywords: weldingassembly base c

2、lamp loeation 1. introduction assembly and welding fixture in the automotive body assembly and welding production line of critical process equipment related to manufacturing quality of the car. in welding production. assembly and welding fixtures in addition to the completion of this process the par

3、ts assembly, positioning, the also served as a test and calibration procedures on the road, welding parts welding quality of the task, so its design and manufacture of the welding process affects the level of automobile production capacity and product quality.automotive style vary, welding fixture s

4、hape and thus vary widely, but in the design, manufacture, adjustments have in common, you can learn from each other. 2. the structural design of welding fixture fixture structural design, to ensure that the folder has a good convenience of operation, clamping positioning reliability. fixture manufa

5、cturers also adjusted to ensure easy integration of various parts of the structure surface should allow sufficient room for adjustment to ensure the three-dimensional adjustable. ensuring the accuracy of the welding quality and welding under the premise of the structure of fixture should be as simpl

6、e as possible. fixture design is usually the general use of welded structures, the basic component is divided into three parts, namely base, support the positioning part, clamping parts, for each specific fixture positioning support base and some of the general use of 10 to 20 mm thick steel plate w

7、elded structure a3.clamping part of the normal 10 mm with a thickness of about 45 combination of welded steel plate. pneumatic and manual clamping part of the two, according to the size of car production clamping method to determine the general high-volume pneumatic clamping, then manually clamping

8、can be used as auxiliary clamping; small quantities in order to reduce the cost of manually clamp mode. manual clamping is usually manually fast clip, manual quick clip of their products has become the standard, type and quantity needed can be purchased in the market. for some fixtures require apneu

9、matic clamping, but direct use of pneumatic clamping. may damage the workpiece, then, can be manually pressed first place, to give a pneumatic clamping force to clamp the workpiece, which is manual - pneumatic j the fixture clamping system is installed on a large platform, all guaranteed fixture in

10、the welding position of welding conditions should be consistent with the design of the workpiece coordinate dimensions, which involves the positioning fixture benchmarks. 3 assembly and welding fixtures benchmarks and their choice of support surface 3.1 t flip-chip benchmark test fixture each fixtur

11、e must be a fixture coordinate system, in this coordinate system, the coordinates of its base of support size should be supporting the workpiece and the coordinates corresponding to the same size. fixture coordinate system is established based on fixture side of the child base. because the whole fix

12、ture system to guarantee a space auto welding pieces of three-dimensional coordinate system, so this system in all of the fixture must have a common benchmark, this benchmark is the fixture to install platform that is the x, y zuo biao, each specific fixture in platform location, the corresponding h

13、eight shall coordinate z, so that three-dimensional xyzcoordinate system is established. in order to facilitate the installation and measurement fixture, install the platform must have the coordinates of reference, there are generally three types of structure below.3.1.1 the quasi-hole method tomb i

14、nstallation of platform design is the four reference holes, each hole in the center of the two connection lines form a coordinate direction, the four holes constitute the coordinates of two perpendicular lines. this, xy plane coordinate system on the set. the establishment of this benchmark is relat

15、ively simple, easy to process, but the measurements used in conjunction with the base block. base block is a rectangular block size of the amount of accurate measurement, the platform is installed into the base hole in the base marketing, reference block off a side close to the two benchmarks to for

16、m a coordinate direction. 3.1.2 v-type to be law this approach is in the process to install the platform into each of two 90-degree v-groove, which v-groove of a plane surface perpendicular to the installation of platform, such plane perpendicular to the platform, the two v-groove groove the surface

17、 of the form xy plane coordinate system. 3.13 reference block method reference block using the side perpendicular to the two constitutive three-dimensional xyz coordinate system, usually a fixture base with 3 to 4 blocks can be directly installed on theplatform can also add a bearing fixed to the fi

18、xture platform, but requires reference block the last plane to control the height must be consistent with the direction. manufacturing base to adjust the block in front of the two methods is relatively difficult, but the measurement is convenient, especially the use of cmm measurements. block method

19、 with a benchmark of installation platform plane processing requirements are relatively low, a larger size of the installation platform should use this method. 3.2 the choice of bearing surface bearing surface should be used when welding pieces are fixed on the surface of the cut plane to plane and

20、install the platform angle is not greater than 15 degrees on the surface. as far as possible the detection surface and welding pieces of the same, flat surface as far as possible in order tofacilitate processing and adjustment . structure should be designed bearing surface can be easily processed, w

21、ith the number of modules for the product can be used to process bearing nc surface, in the design, the car coordinate xi point was not necessarily suited fixture bearing surface with nc, which requires supporting the fixture block access point s as the base, the establishment of a digital surface,

22、this surface should be consistent and be the bearing surface, so that when it was manufactured to s base point for nc machining, precision machining and assembly debugging easy. 4. positioning the workpiece the general location of the workpieces to holes or obvious surface features as the positionin

23、g reference surface. the positioning pins are commonly used components. fixture positioning sub-activities, and fixed positioning of two, for some jobs, in order to facilitate the workpiece into and out, positioning the form of optional activities, events or block pin positioning structure of the fo

24、rm sub-pneumatic and manual, in principle, put the workpiece seeded, positioning pieces to open into the workpiece, the positioning pieces out, and then clamp; workpiece removed, the position to return items before and after clamp release. activities can be used locate pieces of the movement structu

25、re of pan-type or flip-style, pan-type structure is usually given priority. 5 welding pieces of the station transfer between most auto welding parts to be welded in several station, so it needs transmission device, usually to avoid interference welding fixture, the workpiece in the transmission befo

26、re the first piece rises, which requires use elevator, lifting bodies gear rack, four-link, etc., rack and pinion drive structure processing and link structure are not as good. usually link structure station transmission between the institutions, there are several forms, ie gear and rack transmissio

27、n organizations, non-rod cylinders, transmission organizations, rocker transfer institutions, because form is the reciprocating motion, rocker transfer agencies are from manufacturing to commissioning better than the others, so common rocker transfer agencies. 6 conclusion automotive welding fixture

28、 many concrete structure, this is only in recent years, some of them work experience, along with the development of chinese automobile industry on the requirements of more and more welding fixture, welding fixtures principle is simple, but real design and manufacture high-quality welding fixture sys

29、tem is a complicated project, i hope, serve this article.汽車焊接夾具的設計1 摘要依據車體焊裝線夾具設計理論，對各工位焊接夾具及其焊裝總線進行規(guī)劃、設計，之后進行夾具建模、裝配，插入焊鉗確定其數量、型號及判斷其可達性，最終設計出符合要求的焊接夾具。關鍵詞：焊接部件；基礎；夾緊；位置1. 介紹裝配和焊接夾具在汽車車身裝配和焊接生產線與生產制造優(yōu)質的汽車設備息息相關。焊裝夾具，是焊接工藝的重要組成部分。裝配和焊接夾具除了是完成這個過程中零部件裝配的途徑和定位,同時在生產線上也作為一個測試和校準程序，完成檢測焊接配件和焊接質量的任務。因此焊裝

30、夾具的設計和制造，直接影響焊接過程中汽車的生產能力和產品質量。汽車焊裝夾具是保證其制造質量、縮短其制造周期的重要手段。因此，正確理解焊裝夾具設計要點，改善和提高焊裝夾具的設計手段和設計水平，并提高夾具的調整和驗證水平等三方面都是必不可少的，也是汽車制造公司在激烈的競爭中得以生存所必須解決的問題。汽車的風格不同,焊接夾具的形狀,因而有著很大的不同,但在設計、制造和調整都是共同的,可以借鑒采用。2. 焊接夾具的結構設計焊接夾具的結構設計,確保該夾具有良好的操作方便性、裝夾定位的可靠性。焊裝夾具的制造商也很容易集成的調整,以保證結構各部分的表面應該允許足夠的空間用于調整，以確保立體可調。當然，在確保

31、焊接夾具質量準確性的前提下,焊接夾具的結構應盡可能簡單。夾具設計通常是夾具上全部元件的位置都是直接根據設計基準確定的，最終保證制造出合格的焊接工裝結構。根據作業(yè)高度可初步決定夾具底板的高度，即夾具固定位置的高度。焊接夾具設計首先要考慮夾緊方式，一般有手動和氣動兩種，手動夾緊一般適合于小件、外協件、小批量工件焊裝，對于大型車體部件、規(guī)劃于生產線內、自動化程度要求高的焊接夾具宜選用氣動夾緊，汽車生產的一般采用氣動夾緊,然后手工大批量夾緊可作為輔助夾緊。這樣可以相應的降低成本。部分手動夾緊產品已擁有標準的型號和數量，需要時可以到市場購買即可。對于某些裝置,規(guī)定采用氣動夾緊，但如果直接使用氣動夾緊，可

32、能損壞的工件,所以,可以由人工先按地方,來提供一種氣動夾緊力夾緊工件,這是手動-氣動。該夾具夾緊系統(tǒng)是安裝在一個大平臺,所有固定在此保證焊接位置的焊接條件應符合設計尺寸的工件坐標系定位夾具,這牽涉到的基準。3. 裝配和焊接夾具的基準和他們所選擇的支撐面3.1 設計基準的確定每個夾具必須具有固定坐標系統(tǒng),在這個坐標系統(tǒng), 它的支撐基礎坐標尺寸應該支持工件以及坐標對應于同樣的大小。所以在整個的焊裝夾具系統(tǒng)中,為了確保自動焊件系統(tǒng)的三維空間坐標一致, 所有的焊裝夾具在該系統(tǒng)中必須有一個共同的基準。該基準是夾具安裝平臺,這是x,y坐標、每一個具體部件都固定在平臺相應位置,要具有相應的高度,所以,應協調

33、z坐標，由此建立了三維xyz坐標系統(tǒng)。為了方便夾具的安裝及測量、安裝平臺必須有坐標的參考,通常有三種類型。結構如下：3.1.1 基準孔的方法安裝平臺設計時有四個基準孔,其中每一個孔圓心坐標的兩個方向、四個孔的坐標構成兩條相互垂直的線。這就是,xy平面坐標系統(tǒng)上集合。這個基準的建立相對簡單,易加工,但同時使用的測量與基準精確。任何形狀都是由空間點組成的，所有的幾何量測量都可以歸結為空間點的測量，因此精確進行空間點坐標的采集，是評定任何幾何形狀的基礎。參考一側靠近兩個基準形成的一個協調的方向。3.1.2 v型檢測法這種方法是在這一過程中安裝平臺分為每兩個90度范圍的,這兩條軸線的線組成一平面垂直安裝的平臺,這樣平面垂直于平臺,這兩個軸線溝槽的表面形式xy平面坐標系統(tǒng)。3.1.3 參考試塊法參考使用側塊垂直于三維xyz坐標系統(tǒng),通常是一個檢具的底座與3到4塊可直接安裝在平臺上，也可以添加一個軸承固定夾具平臺,但需要參考塊的最后一個平面來控制高度，必須保證方向一致。制造時，調整塊在前面的兩種方法是較為困難的,但這種測量極為方便