TW200418591A - Method and apparatus for incremental forming - Google Patents

Abstract

The objective of the present invention is to enhance the efficiency of incremental forming of product having two form portions. The solution of the present invention is that in forming a secondary form portion having a three-dimensional shape to a part of a primary form portion having a two-dimensional curved plane, a work 240 having a curved plane corresponding to the shape of the primary form portion is prepared, and only the secondary form portion is created by incremental forming.

Description

200418591 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於逐次成形加工方法及裝置。 【先前技術】200418591 (1) 发明. Description of the invention [Technical field to which the invention belongs] The present invention relates to a method and apparatus for sequential forming processing. [Prior art]

將棒狀的工具抵接於金屬板素材的表面，而且對應於 應成形製品的形狀，沿著等高線而施予逐次成形的逐次成 形加工手段是揭示於下述的專利文獻1。 【專利文獻1】 日本特開2002- 1 444號公報（歐洲專利公開公報第 1147832A2 號）。 【發明內容】 〔發明所欲解決之課題〕A sequential forming processing method in which a rod-shaped tool is abutted against the surface of a metal plate material and is successively formed along a contour line corresponding to the shape of a product to be formed is disclosed in Patent Document 1 described below. [Patent Document 1] Japanese Patent Laid-Open No. 2002-1 444 (European Patent Publication No. 1147832A2). [Summary of the Invention] [Problems to be Solved by the Invention]

第1圖是藉由適用本發明而逐次成形加工來製作的製 品的立體圖。 以符號1來顯示全體之製品是具備有在具有彎曲成2 次元的剖面形狀的第1成形部1 0的中央部突出具有3 ::欠 元形狀的第2成形部20的構造。 第5圖乃至第9圖是顯示藉由通常的遂次成形加工來 製作製品1的製程。 平台5〇上所配設的成形用治具100楚具有對應於製 品的第1成形部1 〇的第1模型構件11 〇與對應於製品的 第2成形部20的第2模型構件120。 -5- (2) (2)200418591 作爲工作物（素材）的金屬板1 4 0是在平面狀的素材 ，將其周邊藉由工作物撐架1 3 0與工作物夾〗5 〇來把持。 工作物撐架1 3 0是可從第2模型構件的頂部下降。逐次成 形加工工具1 6 0是使軸心沿著垂直方向，可朝水平方向及 垂直方向移動。 第6圖是顯示逐次成形加工的槪要，第7圖是顯示成 形的路徑。 如第6圖、第7圖所示，藉由將第1成形部成形的路 徑P 1與第2成形部成形的路徑P2來對工作物全體施予逐 次成形加工，加工成製品的形狀。 如第8圖所示，逐次成形加工工具1 6 0是於平面形狀 的工作物140的上面一邊在平行的X— Y軸上移動，一邊 朝Z軸方向僅以間距P前進而進行成形。在第8圖的各圖 之中，雖然顯示逐次成形加工工具160，但是實際上是1 支。以3支的工具1 6 0來顯示沿著等高線移動之情事。 也就是，一但將前進的間距P作成一定時，進而沿著 等高線成形。當第1成形部的曲面的曲率半徑變大時，鄰 接的路徑的間隔變寬，成形性會產生不良的問題。 於是，當進行將前進間距減小而成形性提高的方式時 ，成形路徑的全長會增大，加工時間變長之不良情況會產 生。 第9 ( a )圖是顯示逐次成形加工完成，在工作物1 4 0 上讓第1成形部1 〇與第2成形部20加工的狀態。 接著，對應於製品的外周形狀，而在工作物1 40施予 -6- (3) (3)200418591 適當的修整（t r i m m i n g )加工C 1，而得到製品1。 在工作物1 4 0是殘留具有藉由修整加工來將製品切割 出的空間1 42的端材，而成爲使素材的成品率惡化的原因 〇 本發明是提供可解決上述的問題之逐次成形加工方法 及裝置。 〔用以解決課題之手段〕 爲了達成上述目的，本發明的3次元形狀逐次成形方 法是準備具有對應於第1成形部的曲面的工作物，對該工 作物的一部份藉由逐次成形加工來將3次元形狀的第2成 形部加工。 然後逐次成形加工裝置是具備有把持工作物的周邊的 工作物撐架與承載工作物夾的平台、及對於平台而朝垂直 的方向所裝備的逐次成形加工工具，對應於工作物的曲面 而具備有工作物撐架及工作物夾。 【實施方式】 第2圖乃至第4圖是顯示藉由本發明的逐次成形加工 之製品的製作方法的說明圖。 在本發明之中，平台5 0上所配設的成形治具2 0 0是 僅具備有對應於製品的第2成形部的模型構件220。 作爲工作物（素材）的金屬板240是預先在具有製品 的第1成形部與同2次元曲面的曲面上加工。 (4) (4)200418591 工作物撐架2 3 0是具有與工作物240的曲面一致的撐 架面232。工作物夾、250也同樣地具有與工作物240的曲 面一致的夾取面2 5 2。 在加工之際是在X - Y平面上沿著第2成形部的平面 形狀而使逐次成形加工工具2 6 0與平台5 0相對移動的同 時，在逐次成形加工工具2 6 0是朝Y軸方向相對移動之 際是以將逐次成形加工工具260沿著第1成形部，也就是 沿著工作物2 4 0的曲面移動的方式來控制。 另外，隨著加工的進行，僅將逐次成形加工X具2 6 0 依預定的間距P 2移動，並且加工第2成形部是與通常的 逐次成形加工同樣。 如第4圖所示，對工作物240預先賦予2次元的曲面 後，因爲只逐次成形加工3次元的第2成形部，所以成形 路徑已變短，加工時間也被縮短。 【圖式簡單說明】 第1圖是適用本發明而成形的製品的立體圖。 第2圖是本發明所使用的機器的立體_。 第3圖是顯示本發明實施例的說明圖。 第4圖是顯示本發明實施例的說明圖。 第5圖是先前技術所使用的機器的立體圖。 第6圖是先前技術的說明圖。 第7圖是先前技術的說明圖。 第8圖是先前技術的說明圖。 -8- (5) (5)200418591 第9圖是先前技術的說明圖。 〔符號說明〕 1 :製品 1 〇 :第1成形部 2 0 :第2成形部 2 00 :成形治具 2 3 0 :作物撐架 2 4 0 :工作物 2 5 0 :工作物夾 260:逐次成形加工工具 -9 -Fig. 1 is a perspective view of a product produced by successive forming processes to which the present invention is applied. The product shown as a whole by reference numeral 1 has a structure including a second molded portion 20 having a 3 :: underlying shape projecting from a central portion of the first molded portion 10 having a cross-sectional shape bent in two dimensions. Figures 5 to 9 show the manufacturing process of the product 1 by the usual continuous forming process. The forming jig 100 provided on the platform 50 has a first mold member 11 0 corresponding to the first forming portion 10 of the product and a second mold member 120 corresponding to the second forming portion 20 of the product. -5- (2) (2) 200418591 The metal plate 1 4 0 as the work object (material) is a flat material, and its periphery is held by the work object holder 1 3 0 and the work object clip 〖50. . The work support 1 30 can be lowered from the top of the second model member. The progressive forming tool 160 has its axis centered in the vertical direction and can be moved horizontally and vertically. Fig. 6 shows the outline of the sequential forming process, and Fig. 7 shows the forming path. As shown in Fig. 6 and Fig. 7, the path P1 formed by the first forming portion and the path P2 formed by the second forming portion are used to sequentially shape the entire work to form the product. As shown in Fig. 8, the progressive forming processing tool 160 is formed on the upper surface of the work 140 having a planar shape while moving in the parallel X-Y axis while advancing in the Z-axis direction by a pitch P only. In each of the drawings of FIG. 8, although the progressive forming tool 160 is shown, it is actually one. Use 3 tools 1 60 to display the movement along the contour line. That is, once the forward pitch P is made constant, it is formed along the contour line. When the curvature radius of the curved surface of the first forming portion becomes larger, the interval between adjacent paths becomes wider, which causes a problem of poor formability. Therefore, when the method of reducing the advance pitch and improving the formability is performed, the total length of the forming path is increased, and a disadvantage that the processing time becomes longer occurs. Fig. 9 (a) shows a state where the sequential forming process is completed and the first forming part 10 and the second forming part 20 are processed on the work 140. Next, according to the outer shape of the product, -6 (3) (3) 200418591 is applied to the work 1 40 with appropriate trimming (t r i m m i n g) to process C 1 to obtain the product 1. The end of the work 1 4 0 is the end material which has the space 1 42 cut out of the product by the trimming process, which causes the deterioration of the yield of the material. The present invention provides a sequential forming process that can solve the above-mentioned problems Method and device. [Means to solve the problem] In order to achieve the above object, the three-dimensional shape sequential forming method of the present invention is to prepare a work having a curved surface corresponding to the first forming portion, and a part of the work is processed by successive forming. Let's process the 3D shape 2nd shaping | molding part. The sequential forming processing device includes a work holding frame for holding the periphery of the work and a platform carrying the work clamp, and a progressive forming tool provided in a direction perpendicular to the platform is provided corresponding to the curved surface of the work. There are work support and work clips. [Embodiment] Figs. 2 to 4 are explanatory diagrams showing a method for producing a product by successive molding processing according to the present invention. In the present invention, the forming jig 200 provided on the platform 50 is a mold member 220 including only a second forming part corresponding to a product. The metal plate 240 as a work (material) is processed in advance on a curved surface having a first forming portion of the product and a second-dimensional curved surface. (4) (4) 200418591 The work support 2 230 is a support surface 232 that conforms to the curved surface of the work 240. Similarly, the work clamps 250 have a gripping surface 2 5 2 that matches the curved surface of the work 240. During processing, the progressive forming tool 2 6 0 and the platform 50 are moved relatively along the planar shape of the second forming part on the X-Y plane, and the progressive forming tool 2 6 0 is toward the Y axis. The relative movement in the direction is controlled by moving the progressive forming tool 260 along the first forming portion, that is, along the curved surface of the workpiece 240. In addition, as the processing progresses, only the progressive forming process X 2 60 is moved by a predetermined pitch P 2, and the second forming portion is processed in the same manner as the normal successive forming process. As shown in Fig. 4, after a two-dimensional curved surface is preliminarily provided to the work 240, only the three-dimensional second forming portion is successively formed, so the forming path is shortened and the processing time is shortened. [Brief Description of the Drawings] FIG. 1 is a perspective view of a product formed by applying the present invention. Fig. 2 is a three-dimensional view of a machine used in the present invention. Fig. 3 is an explanatory diagram showing an embodiment of the present invention. Fig. 4 is an explanatory diagram showing an embodiment of the present invention. Fig. 5 is a perspective view of a machine used in the prior art. Fig. 6 is an explanatory diagram of the prior art. Fig. 7 is an explanatory diagram of the prior art. Fig. 8 is an explanatory diagram of the prior art. -8- (5) (5) 200418591 Fig. 9 is an explanatory diagram of the prior art. [Description of Symbols] 1: Product 1 〇: First forming section 2 0: Second forming section 2 00: Forming jig 2 3 0: Crop holder 2 4 0: Work 2 5 0: Work clamp 260: Successive Forming tools-9-

Claims (1)

(1) (1)200418591 拾、申請專利範圍 1 · 一種逐次成形加工方法，是在剖面具有2次元曲 面的第1成形部與第1成形部的一部份將具有3次元形狀 的第2成形部的製品逐次成形加工的方法，其特徵爲： 準備具有對應於第1成形部的曲面的：]：作物，對該工 作物的一部份藉由逐次成形加工來將3次元形狀的第2成 形部加工。 2 ·如申請專利範圍第1項所記載之逐次成形加工方 法，其中，在上述第2成形部的逐次成形加工，具有以與 上述第1成形部的曲面平行的路徑來使逐次成形加工工具 移動。 3 · —種逐次成形加工裝置，是具備有把持工作物的 周邊的工作物撐架與承載工作物夾的平台、及對於平台而 朝垂直的方向所裝備的逐次成形加工工具的逐次成形加工 裝置，其特徵爲： 對應於工作物的曲面而具備有工作物撐架及工作物夾 〇 4.如申請專利範圍第3項所記載之逐次成形加工裝置 ，其中，具備有僅對應於第2成形部的形狀的成形治具。(1) (1) 200418591 Scope of patent application 1 · A sequential forming method is a second forming with a three-dimensional shape in the first forming part and a part of the first forming part having a two-dimensional curved surface in the cross section. The method of successively forming a product of a part is characterized in that: a preparation having a curved surface corresponding to the first forming part is prepared:]: a crop, and the second part of the three-dimensional shape is formed by successively forming a part of the workpiece Processing of forming section. 2. The sequential forming processing method described in item 1 of the scope of the patent application, wherein the sequential forming processing in the second forming portion has a method of moving the successive forming processing tool along a path parallel to the curved surface of the first forming portion. . 3. A progressive forming and processing device is a progressive forming and processing device provided with a work holding frame for holding the periphery of the work and a platform carrying the work clamp, and a progressive forming and processing tool equipped in a direction perpendicular to the platform. It is characterized in that it is provided with a work support and a work clamp corresponding to the curved surface of the work. 04. The sequential forming processing device described in item 3 of the patent application scope, wherein it is provided with only the second forming Forming jig of the shape of the part.