1308092 九、發明說明： 【發明所屬之技術領域】 本發明涉及高張力金屬板的成型製法及該沖壓設備，特別是指 一種透過該沖壓設備之沖頭與壓料板之壓著部兩邊形成段差區，以 該段差區能避免高張力金屬板成型後的反彈作用力之方法及該沖 壓設備。 【先前技術】 金屬具有極佳的強度和適當的挽、動度，常用來做為需要強度 的結構件’在-單位面積上所施加的力量超過其拉伸強度時，金屬 不會像n或磚瑰«性材料-樣馬上斷裂，而是產生變形，也就 是說金屬具有可塑性，故-般稱它為塑性變形；讓金屬產生塑性變 形必須以強度更高於金屬的哺來t作模具，通常其卫作步驟是將 鋼材依所要成_雜《上、下模具，錢把上下模具打開後置 入材料，再把模具固定在稱為沖床的設備上，讓沖床提供成形所需 的力I ’帶動模具做上下合模/開模的動作。合模使材料成开多，開 模讓原材料做進出的動作，以沖床、模具及原材料構成一套沖壓成 形系統，在強壓之下，即使是強度甚佳的金屬也不得不隨模具形狀 而變形。 請同時參閱第-圖所示，為習知將高張力金屬板成型的步驟及 該模具設計。其中，高張力金屬板10係置放在上模具20以及下模 沖頭22之間，在下模沖頭22沖壓的過程，由壓料板24進行夾持 該高張力金屬板10，惟在沖壓的過程中，該高張力金屬板1〇之板 5 1308092 材特性及其内應力對於沖壓之抗力影響，高張力金屬板ίο之尾端 12時常容易產生大幅反彈（翹起）或撓曲，嚴重影響產品品質， 其結果如第二圖所示。 又，因為金屬板尾端翹起或撓曲以致於沖壓後無法一次完成規 格所要求的角度以及形狀，故必須加上後製作業。故習知的做法加 上後製作業的製程為：（一）成型、（二）剪邊、（三）整形、（四） 再整形，共計有四項製程。亦或是：（一）下料、（二）成型、（三） I 二次成型、（四）整形、（五）再整形，共計有五項製程。上述兩種 製程方式過程冗長，生產速度緩慢，影響甚鉅的部分則在於金屬板 材料經過多道加工程序後，將於表面留下壓紋、刮壓痕跡，成品品 質受到影響，更必需包含再次以加工恢復光滑表面的再次加工製 程。 舉一實例來說，為避免反彈和增加成型產品的準確度，一般如 果要成型一預定角度，則需要藉模具經加上所述之多次的”成 I 型”、”整型”等沖壓彎折，和調整其沖壓成型的成品至標準的 彎曲形狀，其需要經多次成型加工、整形調整，該沖壓時間、搬運 過程、開模合模操作耗費人力、工種和動力，作業相當繁瑣；再者， 多次的”成型”、”整型”的沖壓成型作業，不僅工時成本高， 且減損模具使用壽命，同時成型製品亦會硬化，不利加工程序。 【發明内容】 本發明欲解決的技術問題與目的： 本發明主要目的在於在預定彎折的產品外緣產生一段差結 6 1308092 構，可形成該段差之模具將於沖頭與壓料板分隔之分模線，使高張 力金屬板在成型的過程中充分壓制金屬板避免反彈。 本發明次一目的在於將金屬材料成型之製程縮減，利用該沖壓 設備將製程縮減為（一）成型、（二）剪邊、（三）整形，以減少人 力、工時和降低功率消耗，大量降低開模成本及沖壓製程費用，且 成型製品不會產生刮、壓痕跡和硬化，便利於加工程序，提昇成型 製品品質。 Φ 本發明解決問題的技術手段： 本發明之高張力金屬板的沖壓設備，包括有：一沖頭，一與該 沖頭為相對應之上模以及一壓料板，其中，該沖頭與壓料板之壓著 部兩邊形成有一段差區，該段差區係相對設於在高張力金屬板預定 彎折之外緣部，使具有一預定面積的高張力金屬板被放置在沖壓設 備之沖頭與壓料板之間，在金屬板材料成型的過程中，金屬板材料 將充分受到該段差區的壓制而在尾端形成一段差，可避免該金屬板 • 材料成型後的反彈作用。 透過上述的冲壓設備，本發明具有下列冲壓步驟：將壓料板位 於一預計高度，該高度略與冲頭相同而形成一平面，將金屬板材料 置放在該平面上，之後進行第一階段沖壓。該第一階段沖壓係由一 驅動機構驅使沖頭上升一第一距離，使該高張力金屬板呈現粗略變 形，同時該變形部分以沖頭與壓料板之壓著部兩邊段差為變化，第 二階段沖壓再由驅動機構驅使沖頭上升一第二距離，使該高張力金 7 1308092 屬板呈現大體變形，第三階段沖壓則由驅動機構驅使沖頭上升一第 三距離而沖壓到底，透過分階段沖壓以及段差區的設置，將使高張 力金屬板在成型的過程中在尾端形成一段差充分到壓制，故高張力 金屬板材料將塑性變形，產品成型過程僅需成型、剪邊、整形三步 驟即可。 本發明更進一步在上模之侧端邊設有一調整機構，藉以調整沖 頭與壓料板之間的段差區，使本沖壓設備更具彈性。 鲁 本發明對照先前技術的功效： 本發明在預定彎折成品外緣之模具設計一段差區，成為沖頭與 壓料板分隔之分模線，使高張力金屬板材料在成型的過程充分受到 壓制，避免高張力金屬板之邊為反彈或撓曲狀態，省卻沖壓後需經 多次整形之缺失。 在製作相同經沖壓產生的產品時，本發明較先前技術省略一到 二步驟可減少工種和作業人員，故相對可以提升生產效率且降低成 參本’避免瑕疵品形成的機率；以及通過本發明之金屬板成型製品， 不會產生硬化，同時可降低施加於沖壓模具之成型壓力，減省人 力、工種和對於能源、功率之消耗，且進一步提昇模具之使用壽命。 以下將配合圖式說明本發明的實施例，下述所列舉的實施例係 用以閣明本發明，並非用以限定本發明之範圍，任何熟習此技藝 者’當可做些許更動與濶飾，因此本發明之保護範圍當視後附之申 請專利範圍所界定者為準。 【實施方式] .1308092 本發明所述之高張力金屬板，舉例來說可為將鋼材經過加工之 高張力鋼板，由於其高性能及減輕重量的優點，漸漸成為汽車材料 的主角，譬如使用在：車身骨架、車架、保險桿等，該強度的增加 係添加微量合金元素，如Nb、Cu、V、Ti等，當然特殊的軋延及 退火技術也是達到期望特性的必要步驟。當然，屬於高張力金屬特 性者範圍廣泛，故當不以此為限定。 請參閱第三圖所示，本發明之沖壓設備包括有沖頭32 ❿ （Punch)、上模30 (DIE)以及壓料板34 (Blank Holder)，而上模 30亦俗稱為母模。其中該上模30或沖頭32通常受到一驅動機構 40之驅動，而可作上、下規律性運動，又，除了設定為規律性， 亦可為受控制指令設定，為分階段式之運行。與該沖頭32為相對 應之上模30，該上模30係搭配沖頭32之型態而通常為一具有凹 陷部之模具，如同本實施例，該沖頭32與上模30分為”凸”、”凹” 之相對應模具，但並不限於該型態。該壓料板34係提供一適當的 • 壓料力道，可對高張力金屬板10 (板料）在沖頭32、上模30進行 相對性運動時進行夾持，故加工時，高張力金屬板10置於壓料板 34與上模30間，且被夾持住，然後沖頭32往高張力金屬板10移 動，引伸至上模30中。 本發明之特色係在於該沖頭32與壓料板34之壓著部34a兩邊 形成有一段差區S，該段差區S係相對設於高張力金屬板10預定 彎折尾端12 (或稱為變形）之外緣，具體距離預定彎折尾端12約 1308092 略5mm~20mm (可調整值），將令高張力金屬板10之尾端12外緣 形成一段差14,該段差區S成為沖頭32與壓料板34之分模線C。 本實施例係以區塊型式之壓料板34，表示於圖面之左右兩側，使 具有一預定面積的高張力金屬板10被放置在沖壓設備之沖頭32與 壓料板34之上，在高張力金屬板10成型的過程中受到壓料板34 與上模30間的滑動作用，充分受到該段差區S的壓制、而產生段 差14來避免該高張力金屬板10成型後的尾端反彈作用。 • 請連續參閱第四圖至第六圖所示，為本發明沖壓設備一系列動 作步驟，在本發明中許多因素不加以考慮，如：壓料板34與上模 30或沖頭32間之摩擦關係、壓料板34之壓料力道等，主要仍著 重克服料件成型之後的反彈以及省略製程，合先敘明。首先，沖頭 32必須連接一驅動機構，一般為油壓機，藉以帶動沖頭作上、下 運動，在之前第三圖已有說明。第四圖中，該沖壓步驟開始，壓料 板34位於一預計高度，該高度略與冲頭32相同而形成一平面，該 • 高張力金屬板10置放在該平面上，亦或於開始階段沖頭32與壓料 板34即位於同一平面上（請參考第三圖）；參閱第五圖，進入第一 階段沖壓，壓料板34或其壓著部34a係提供一適當的壓料力道， 可對高張力金屬板10在沖頭32、上模30進行相對性運動時進行 夾持，而由驅動機構40驅使沖頭32上升一第一距離，使該高張力 金屬板10呈現粗略變形，該部分變形係隨著沖頭32逐漸進入上模 30、並與壓料板34之段差區S為變化；參閱第六圖，進入第二階 10 1308092 段沖壓，由該驅動機構40驅使沖頭32上升一第二距離，使該高張 力金屬板10持續變形，該高張力金屬板10隨著沖頭32頂起而逐 漸貼於上模30之邊緣部位，段差區S業逐漸形成；參閱第七圖， 為其成型示意圖，在進入第三階段沖壓，由驅動機構40驅使沖頭 32上升一第三距離，該第三階段沖壓將令沖頭32沖壓到底至高張 力金屬板10完成變形，並使該高張力金屬板10外緣12因沖頭32 與壓料板34之壓著部兩邊有一段差區S模具結構而形成一段差 φ 14。由此可瞭解，透過分階段沖壓以及模具結構的設計，將使高張 力金屬板10在成型的過程中充分受到壓制，故該材料將塑性變 形，產品成型後，該段差14將壓制（抵銷）尾端外緣反彈力道， 所以成型品僅需經剪邊、整形步驟即可完成。 又，要說明的是，前述沖頭32上升之第一、第二、第三距離， 係為配合圖面所示而界定的，而實際上驅動機構40驅使沖頭32上 升是線性連續的，即為不分段連續式的反覆運動，在此特予釋明。 • 本發明之變化實施部分請參閱第八圖，進一步於上模30之至 少一端邊設有一調整機構36，至少由一可旋控導螺桿362以及可 調整之墊體364構成，該調整機構36能夠調整沖頭32與壓料板 34之間的模具段差區S。譬如，若原先高張力金屬板之段差形成 需在為外緣10mm，若規格需要改變增減a時，則可操控該導螺桿 362進而帶動墊體364使該成為10mm±a，該a值即為該調整機構 36之增減量，進而改變沖頭32與壓料板34之模具段差區S相對 1308092 深淺。故，以該調整機構36可以配合不同厚薄度、彎折角度需求 或金屬板性質，在一裕度範圍内進行調整，達到最佳成型效能。1308092 IX. Description of the Invention: [Technical Field] The present invention relates to a method for forming a high-tensile metal sheet and the stamping apparatus, and more particularly to a step of forming a step on both sides of a pressing portion of a punching device and a press plate through the punching device The method of avoiding the rebound force after the high-tension metal sheet is formed by the section difference zone and the stamping apparatus. [Prior Art] Metal has excellent strength and proper pull and movement. It is commonly used as a structural member requiring strength. When the force applied on a unit area exceeds its tensile strength, the metal does not look like n or The brick material «sex material - immediately breaks, but produces deformation, that is to say, the metal has plasticity, so it is generally called plastic deformation; plastic deformation of the metal must be made with a stronger strength than the metal. Usually, the maintenance step is to put the steel into the upper and lower molds, and put the upper and lower molds into the material, and then fix the mold on the equipment called punching machine, so that the punch can provide the force required for forming. 'Drive the mold to do the upper and lower mold / mold opening action. The mold is used to open the material, and the mold is opened to allow the raw materials to enter and exit. The press, the mold and the raw materials form a stamping forming system. Under strong pressure, even a very strong metal has to be deformed with the shape of the mold. . Please also refer to the figure-picture for the steps of molding a high-tension metal sheet and designing the mold. Wherein, the high tension metal plate 10 is placed between the upper die 20 and the lower die punch 22, and in the process of punching the lower die punch 22, the high tension metal plate 10 is clamped by the binder plate 24, but in the stamping In the process, the high tensile metal plate 1 〇 plate 5 1308092 material characteristics and its internal stress on the resistance of the stamping, the high tension metal plate ίο end 12 is often prone to a large rebound (warping) or deflection, serious Affect the quality of the product, the results are shown in the second figure. Moreover, since the tail end of the metal plate is lifted or deflected so that the angle and shape required by the specification cannot be completed once after the stamping, it is necessary to add post-production work. Therefore, the conventional practice of adding post-production operations is: (1) forming, (2) trimming, (3) shaping, and (4) reshaping. There are a total of four processes. Or: (1) blanking, (2) forming, (3) I secondary molding, (4) shaping, and (5) reshaping. There are a total of five processes. The above two process methods are lengthy and the production speed is slow. The most influential part is that the metal sheet material will leave embossing and scratch marks on the surface after multiple processing procedures, and the quality of the finished product is affected. A reworking process that restores smooth surfaces with machining. As an example, in order to avoid bounce and increase the accuracy of the molded product, generally, if a predetermined angle is to be formed, it is necessary to add the above-mentioned "I-type", "integral" and the like by the mold. Bending, and adjusting the finished product of the stamping to the standard curved shape, which requires multiple molding processing and shaping adjustment, the punching time, the carrying process, the mold clamping and clamping operation cost manpower, work type and power, and the operation is quite cumbersome; Moreover, the multiple "forming" and "integral" press forming operations not only have high labor costs, but also detract from the service life of the mold, and the molded products are also hardened, which is disadvantageous to the processing procedure. SUMMARY OF THE INVENTION Problems and Objects to Be Solved by the Invention: The main object of the present invention is to produce a differential junction 6 1308092 structure on the outer edge of a predetermined bent product, and the mold which can form the step will separate the punch from the pressure plate. The parting line allows the high-tension metal sheet to fully press the metal sheet during the forming process to avoid bounce. The second object of the present invention is to reduce the manufacturing process of the metal material, and use the punching equipment to reduce the process to (1) forming, (2) trimming, and (3) shaping to reduce manpower, man-hours, and power consumption. The mold opening cost and the stamping process cost are reduced, and the molded product does not cause scratches, pressure marks and hardening, which facilitates the processing procedure and improves the quality of the molded product. Φ The technical means for solving the problem of the present invention: The stamping apparatus for the high-tensile metal sheet of the present invention comprises: a punch, an upper mold corresponding to the punch, and a pressure plate, wherein the punch and the punch A pressing section is formed on both sides of the pressing portion of the pressure plate, and the difference zone is oppositely disposed at a predetermined bending edge of the high-tension metal plate, so that a high-tensile metal plate having a predetermined area is placed in the punching device. Between the head and the pressure plate, during the forming process of the metal plate material, the metal plate material will be sufficiently pressed by the section to form a difference at the end, which can avoid the rebound effect of the metal plate and the material after molding. Through the above-mentioned stamping apparatus, the present invention has the following stamping step: the stamping plate is placed at a predetermined height which is slightly the same as the punch to form a plane, and the sheet metal material is placed on the plane, and then the first stage is performed. stamping. The first stage stamping system drives the punch to a first distance by a driving mechanism, so that the high tension metal plate exhibits a rough deformation, and the deformation portion is changed by the difference between the pressing portion of the punch and the pressing plate. The two-stage stamping is further driven by the driving mechanism to raise the punch by a second distance, so that the high-tension gold 7 1308092 is substantially deformed, and the third-stage punching is driven by the driving mechanism to raise the punch by a third distance and punched through. The step-by-step stamping and the setting of the step zone will make the high-tension metal sheet form a difference at the end of the forming process to the full extent, so the high-tension metal sheet material will be plastically deformed, and the product forming process only needs to be formed, trimmed, Just three steps of shaping. The present invention further provides an adjustment mechanism at the side end of the upper mold to adjust the step area between the punch and the pressure plate to make the punching apparatus more flexible. The invention compares the efficacy of the prior art: The invention designs a section of the mold at the outer edge of the predetermined bent finished product, and becomes a parting line separating the punch and the pressing plate, so that the high tension metal plate material is fully subjected to the molding process. Pressing, avoiding the side of the high-tension metal plate to rebound or flex, eliminating the need for multiple shaping defects after stamping. When the same stamped product is produced, the present invention can reduce the number of work and the operator by omitting one to two steps from the prior art, so that the production efficiency can be improved and the probability of forming a 'to avoid the formation of the product can be reduced; and the invention is The metal sheet molding product does not cause hardening, and at the same time, reduces the molding pressure applied to the stamping mold, reduces manpower, work type and consumption of energy and power, and further improves the service life of the mold. The embodiments of the present invention are described below in conjunction with the drawings. The following examples are intended to illustrate the invention and are not intended to limit the scope of the present invention. Anyone skilled in the art can make a few changes and accessories. Therefore, the scope of the invention is defined by the scope of the appended claims. [Embodiment] .1308092 The high-tensile metal plate according to the present invention can be, for example, a high-tensile steel plate which is processed by a steel material, and gradually becomes a protagonist of automobile materials due to its high performance and weight reduction advantages, for example, : Body frame, frame, bumper, etc., the increase in strength is the addition of trace alloying elements such as Nb, Cu, V, Ti, etc. Of course, special rolling and annealing techniques are also necessary steps to achieve the desired characteristics. Of course, there are a wide range of high tensile metal characteristics, so it is not limited to this. Referring to the third figure, the stamping apparatus of the present invention includes a punch 32 P (Punch), an upper mold 30 (DIE), and a binder holder 34 (Blank Holder), and the upper mold 30 is also commonly known as a master mold. The upper mold 30 or the punch 32 is usually driven by a driving mechanism 40, and can be used for vertical movement of the upper and lower sides. In addition to setting the regularity, it can also be set by the control command, which is a staged operation. . The punch 32 corresponds to the upper die 30. The upper die 30 is matched with the shape of the punch 32 and is generally a die having a recess. As in the embodiment, the punch 32 and the upper die 30 are divided into three. The corresponding mold of "convex" or "concave" is not limited to this type. The pressure plate 34 provides a suitable pressure material for clamping the high tension metal plate 10 (sheet) during the relative movement of the punch 32 and the upper mold 30, so that the high tension metal is processed. The plate 10 is placed between the press plate 34 and the upper die 30, and is clamped, and then the punch 32 is moved toward the high-tensile metal plate 10 and is extended into the upper die 30. The present invention is characterized in that the punch 32 and the pressing portion 34a of the pressure plate 34 are formed with a step S on both sides, and the step S is oppositely disposed on the predetermined bending end 12 of the high-tension metal plate 10 (or called deformation). The outer edge, the specific distance from the predetermined bending end 12 is about 1308092, which is slightly 5mm~20mm (adjustable value), which will make the outer edge of the tail end 12 of the high tension metal plate 10 form a difference 14 which becomes the punch 32 and The parting line C of the binder plate 34. In this embodiment, the block type 34 is shown on the left and right sides of the drawing, so that the high tension metal plate 10 having a predetermined area is placed on the punch 32 and the pressing plate 34 of the stamping apparatus. During the molding process of the high-tensile metal plate 10, it is subjected to the sliding action between the pressing plate 34 and the upper die 30, and is sufficiently pressed by the step S to generate a step 14 to avoid the tail of the high-tensile metal plate 10 after molding. End rebound effect. • Please refer to the fourth to sixth figures in succession. It is a series of action steps of the stamping equipment of the present invention. Many factors are not considered in the present invention, such as: between the pressure plate 34 and the upper mold 30 or the punch 32. The friction relationship, the pressing force of the pressure plate 34, etc., mainly focus on overcoming the rebound after the forming of the material and omitting the process, which is first described. First, the punch 32 must be coupled to a drive mechanism, typically a hydraulic press, to drive the punch for up and down movement, as previously described in the third figure. In the fourth figure, the stamping step begins, the pressure plate 34 is at a predetermined height, which is slightly the same as the punch 32 to form a plane, and the high tension metal plate 10 is placed on the plane, or may be started. The stage punch 32 is located on the same plane as the pressure plate 34 (please refer to the third figure); referring to the fifth figure, entering the first stage stamping, the pressure plate 34 or its pressing portion 34a provides a suitable pressing material. The force can be clamped when the high-tension metal plate 10 is moved relative to the punch 32 and the upper die 30, and the driving mechanism 40 drives the punch 32 to rise by a first distance, so that the high-tensile metal plate 10 is rough. The deformation is changed as the punch 32 gradually enters the upper die 30 and is different from the step S of the binder plate 34; referring to the sixth figure, the second step 10 1308092 is punched and driven by the drive mechanism 40. The punch 32 is raised by a second distance to continuously deform the high-tensile metal plate 10, and the high-tensile metal plate 10 is gradually attached to the edge portion of the upper mold 30 as the punch 32 is lifted up, and the step S is gradually formed; See the seventh picture, for its molding schematic, after entering The three-stage stamping is driven by the driving mechanism 40 to raise the punch 32 by a third distance. The third-stage stamping will press the punch 32 to the high-tension metal sheet 10 to complete the deformation, and the outer edge 12 of the high-tensile metal sheet 10 is rushed. The head 32 has a section S of the mold structure on both sides of the pressing portion of the pressure plate 34 to form a difference φ 14. It can be understood that through the staged stamping and the design of the mold structure, the high tension metal sheet 10 will be fully pressed during the molding process, so the material will be plastically deformed, and the step 14 will be pressed after the product is formed. The outer edge of the tail end rebounds, so the molded product can be completed only by trimming and shaping steps. Moreover, it is to be noted that the first, second, and third distances at which the punch 32 is raised are defined as shown in the drawing, and in fact, the driving mechanism 40 drives the punch 32 to rise linearly. That is, the repeated motion without segmentation is specifically explained here. The modified embodiment of the present invention refers to the eighth embodiment. Further, at least one end of the upper mold 30 is provided with an adjusting mechanism 36, which is composed of at least a rotatable guiding screw 362 and an adjustable pad 364. The adjusting mechanism 36 The mold step area S between the punch 32 and the binder plate 34 can be adjusted. For example, if the step of the original high-strength metal plate is formed to be 10 mm on the outer edge, if the specification needs to change the increase or decrease a, then the lead screw 362 can be manipulated to drive the pad 364 to become 10 mm ± a, the a value is For the increase and decrease of the adjustment mechanism 36, the mold section difference S of the punch 32 and the pressure plate 34 is changed to be shallower than 1308092. Therefore, the adjustment mechanism 36 can be adjusted in a margin range to achieve optimum molding efficiency with different thickness, bending angle requirements or sheet metal properties.
12 1308092 【圖式簡單說明】 第一圖為習知高張力高張力金屬板成型模具設備； 第二圖為透過習知模具設備所成型之高張力金屬板； 第三圖為本發明之沖壓設備示意圖； 第四圖至第六圖為展現一系列沖壓設備之沖壓過程； 第七圖為本發明沖壓高張力金屬板成型示意圖。 第八圖為本發明之沖壓設備搭配調整機構示意圖。 【主要元件符號說明】 10 高張力金屬板 12 尾端 14 段差 20 上模具 22 下模沖頭 24 壓料板 30 上模 32 沖頭 34 壓料板 34a 壓著部 36 調整機構 362 導螺桿 364 墊體 40 驅動機構 S 段差區 C 分模線 1312 1308092 [Simple description of the drawings] The first picture shows the high-tensile and high-tension metal sheet forming mold equipment; the second picture shows the high-tensile metal sheet formed by the conventional mold equipment; The third figure is the stamping equipment of the present invention. Schematic; The fourth to sixth figures show the stamping process of a series of stamping equipment; The seventh figure is a schematic view of the stamping high tension metal sheet forming of the present invention. The eighth figure is a schematic diagram of the adjustment mechanism of the stamping equipment of the present invention. [Main component symbol description] 10 High tension metal plate 12 End 14 segment difference 20 Upper die 22 Lower die punch 24 Pressure plate 30 Upper die 32 Punch 34 Pressure plate 34a Pressing portion 36 Adjusting mechanism 362 Lead screw 364 Pad Body 40 drive mechanism S section difference zone C parting line 13