M392892 五、新型說明： 【新型所屬之技術領域】 本創作有關一種防呆定位凸台之活塞毛坯，乃涉 及發動機活塞領域，尤指快速安裝定位與可避免活塞 變形之產業利用性者。 【先前技術】 按-般昔技活塞加工技藝，是先以車床三爪炎或 四爪夾固禱造活塞毛述頭邱，妙你。 a处頌°卩，然後刼作員再依序輾轉 %工出内徑、外#、外#環溝、尾端裙部、活塞長度 及八他4位，係分別數機組台獨立個別爽固車削完成 ，唯此賴用機械力驅轉爽固施力每次不均一，太輕則 車削即有打滑空轉危險，女舌 , m 太重又極易造成活塞外徑變 形’且爪夫每次驅韓杰151挺; , 得爽固細作中心線未必一致，使完 成加工品質大打折扣·近 近年如第一圖所示，業界有 丄塞毛链頭部頂端設有-個凸起的定位塊⑴，可 •於在加工時供車床鑽頭部頂針孔安裝定位再以三 爪夾進行夾固完全同一中心 時仲.當、隹4σ 作業’然此，新科技 H Ν尺寸微型化，而由於活塞毛坯經 屢輕後的活塞壁比較舊，搞且 ,.... 溥極易！傳統爪央後產生變形 …，實= 誠然落伍未合企業競 f利血，貫待予再加改善必要也。 有鑑於此 > 創 ^ 人本於多年從事相關產品之製迕M392892 V. New description: [New technical field] The creation of a piston blank for a foolproof positioning boss is related to the field of engine pistons, especially those that are quick to install and locate and avoid the deformation of the piston. [Prior Art] According to the general-purpose piston processing technique, it is first to use the lathe three-jawitis or the four-jaw clip to make a prayer. a 颂 ° 卩, then the 再 再 依 % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % Turning is completed, but the mechanical force is used to drive the cool force. Every time the machine is not uniform, if it is too light, there is danger of slipping and idling. The female tongue, m is too heavy and easily deforms the outer diameter of the piston. Drive Han Jie 151 quite; , the center line of the cool and fine work may not be consistent, so that the quality of the finished processing is greatly reduced. In recent years, as shown in the first figure, the industry has a protruding positioning block at the top of the head of the smashed hair chain. (1), can be used in the processing of the lathe drill bit thimble hole positioning and then clamped with the three-jaw clips exactly the same center when the zhong, 隹 4σ operation 'Rather, the new technology H Ν size miniaturization, and because The piston blank is relatively old after the piston wall is relatively old, and, .... 溥 extremely easy! After the traditional claws are deformed..., it is true that it is not necessary for the company to compete for the blood, and it is necessary to improve it. In view of this, the company has been engaged in the production of related products for many years.
開發與設計經驗， 裝I f對上述之目標，詳加設計與審慎 3 M392892 評估後’終得一確具實用性之本創作。 【新型内容】 本創作之主要目的係提供—種防呆定位凸台之 活塞毛场，尤指該活塞毛柱的頭部頂財心兩側，設 有二個圓錐體可供安裝定位的防呆定位凸纟，可避免 加工後之活塞外徑變形為其特徵者。 本創作之次要目的係提供一種防呆定位凸台之 活塞毛链’尤指該定位凸台為二個圓錐體，供快速錐 滑崁入安裝穩固定位校能為其特徵者。 本創作之另一目的係提供一種防呆定位凸台之 活塞毛坯，尤指二個圓錐體為一大一小設計，提供安 裝者防呆安全無誤套塞組合操作為其特徵者。 【實施方式】 為便貴審查委員對本案創作結構功用及特徵目 的有具體瞭解，兹列舉-較佳實施例佐示圖說如下： 請參閱第二圖至第四圖所示，本案—種防呆定位凸 台之活塞毛坯，其主要改良特徵在於:該活塞毛坯⑴ $碩部頂端中心兩側設有二個定位凸台（2、22)，其 疋位凸台高度相同，且為大 乂 j各為大一小圓錐體， 活塞銷A方向對稱分佈在活塞了頁 構特徵者。 个茶王要結 本案創作實施，請參聞筮国& - 圖所不’乃藉該活塞 的頭4二個大小定位凸台（2、22)，供操作員快 4 M392892 速套塞車床之模形桿面端凹設兩定位孔3、33，便活 塞毛坯一體鑄成定位凸台（2、22)對應套塞組合，予 便後方錐形推桿前移穿入活塞毛坯底部抵壓定位中 王現活塞毛堪頭部内外面夾固令活塞外徑不 $外力夹壓變形，另操作員只能按大小對應方向進行 女裝，可有效防止操作時的安裝失誤，達到防呆的安 裝作用，進而可避免加工後的活塞外徑變形，俾確保 ^舌塞精度之產業利用性者。 ’、 本創作之實施，具有以下傳統活塞毛坯無法達到 優點： 1、 本創作藉由在活塞毛坯頭部頂端設計兩個定 位凸C7，靠兩個定位凸台在活塞頭部車出定位直徑， 再以頭部定位直徑和兩個定位凸台加工活塞毛坯的 其他部位，改變了傳統的活塞加工工藝是用加工定位 Θ徑和頭部頂針孔來加工其他部位，解決了當活塞壁 薄無法加工出加工定位内徑時，無法使用傳統抓夾 的活塞加工工藝的問題。 2、 由於本創作的定位凸台的受力是沿活塞銷孔 方向分佈在活塞壁上，再者因活塞銷孔方向上的活塞 壁較厚，受力不易變形，從而避免加工後的活塞外徑 型線變形’從而確保活塞精度。 綜上所述，本創作結構改良，確實突破昔技無法 5 M392892 達成之功效，誠為一突破進步性優異之創作，為符合 專利申請要件，爰依法提出申請。 【圖式簡單說明】 第一圖係傳統結構立體示意圖。 第二圖係本創作之立體圖。 第三圖係本創作之正面示意圖。 第四圖係本創作之安裝防呆示意圖。 【主要元件符號說明】 (1 )........活塞毛坯 (2、22).....定位凸台 (A)........定位塊 6Development and design experience, I f to the above objectives, detailed design and prudence 3 M392892 evaluation after the end of a practical practical creation. [New content] The main purpose of this creation is to provide a piston hair field for a kind of anti-staying positioning boss, especially the two sides of the head of the piston hair column, which are provided with two cones for installation and positioning. Positioning the bulge can avoid the deformation of the outer diameter of the piston after machining. The secondary objective of this creation is to provide a piston chain of a foolproof positioning boss, especially if the positioning boss is two cones, which are characterized by a quick cone sliding into a stable fixed position. Another object of the present invention is to provide a piston blank for a foolproof positioning boss, especially two cones which are designed to be large and small, and which provide the installer with a foolproof and safe combination of latching operations. [Embodiment] In order to have a specific understanding of the purpose of the construction of the case and the purpose of the feature, the list of preferred embodiments is as follows: Please refer to the second to fourth figures, the case - a kind of foolproof The main improvement of the piston blank of the positioning boss is that the piston blank (1) has two positioning bosses (2, 22) on both sides of the center of the top end, and the height of the clamping boss is the same, and is large. Each is a large and small cone, and the piston pin A is symmetrically distributed in the piston structure. The tea king wants to complete the creation and implementation of this case, please visit the country and the country - the map is not 'by the head of the piston's head 42 positioning boss (2, 22), for the operator fast 4 M392892 speed plug lathe The locating rod end is recessed with two positioning holes 3, 33, so that the piston blank is integrally cast into a positioning boss (2, 22) corresponding to the plug combination, so that the rear tapered push rod is forwardly moved into the bottom of the piston blank to press Positioning in the king of the current piston head can be clamped inside and outside the head so that the outer diameter of the piston is not deformed by external force, and the operator can only carry out the women's clothing according to the size of the corresponding direction, which can effectively prevent installation errors during operation and achieve foolproofness. The installation function can avoid the deformation of the outer diameter of the piston after processing, and ensure the industrial utilization of the accuracy of the tongue plug. ', the implementation of this creation, with the following traditional piston blank can not achieve the advantages: 1, the design by the design of two positioning convex C7 at the top of the piston blank head, by two positioning bosses in the piston head out of the positioning diameter, The other part of the piston blank is machined by the head positioning diameter and the two positioning bosses. The traditional piston machining process is to process the other positions by machining the positioning diameter and the thimble hole of the head, which solves the problem that when the piston wall is thin, When machining the machined positioning inner diameter, the problem of the conventional gripping piston machining process cannot be used. 2. Since the force of the positioning boss of the present invention is distributed on the piston wall in the direction of the pin hole of the piston, and the piston wall in the direction of the pin hole of the piston is thick, the force is not easily deformed, thereby avoiding the outside of the piston after processing. The deformation of the radial line' ensures the accuracy of the piston. In summary, the improvement of the creation structure does not break the effect achieved by the former technology. 5 M392892 is a breakthrough in the progress of excellence, in order to meet the requirements of patent applications, and apply in accordance with the law. [Simple description of the diagram] The first diagram is a three-dimensional diagram of the traditional structure. The second picture is a perspective view of the creation. The third picture is a front view of the creation. The fourth picture is a schematic diagram of the installation of this creation. [Explanation of main component symbols] (1)........Piston blank (2, 22)..... positioning boss (A)........ positioning block 6