M261316 八、新型說明： 【新型所屬之技術領域】 本創作係涉及一種氣動研磨拋光機結構，特別是指其内部偏心座組件之創 新結構型態設計者。 【先前技術】 按，氣動研磨拋光機係為一種藉由氣壓作為驅動源之研磨拋光用手工具； 其機體内部具有一組偏心座，可受氣壓驅轉時產生振動，並將此振動傳達至下$ 方研磨盤；而本創作所欲針對改良的，係為其中的偏心座構件，其習知結構請 參閲本國專利公報第517618號之圖二中之元件308所示者，並進一步參閱本創 作第6圖所示，其頂段係為一心軸71、底段則為偏心塊72，偏心塊之内部須掏 空形成容置槽73，藉以供研磨盤樞組用之軸承置入其中；習知結構型態之一， 係將該心軸和偏心塊分別製成，然後再焊接結合，然，由於該偏心塊之焊接部 位恰位於容置槽頂壁，該處厚度相當薄弱，因此並無法提供足夠焊接強度，而 加大厚度則須增加整體架構之體積及重量，不利於產品之輕巧化發展趨勢；習鲁 知結構型態之二，如本創作第7圖所示意，則是將該心軸71和偏心塊72藉由 單一塊金屬材料製成；惟，此種習知結構於實際應用經驗中發現仍存在下 述之問題點： 1、由於該心軸和偏心塊部位體積比例相差懸殊，因此採用單一塊金屬材料 製成之結構型態還是得以該偏心塊之最大外徑取材，如此已造成材料成本 的大幅增長，而後續加工過程又必須歷經多道車、銑過程序才能成型該心 轴和偏心塊部位型態，此其間非但產生了大量的金屬廢料而造成浪費，更 5 M261316 部中再形成有—内凹槽以供氣動研磨拋光機之研磨盤樞組軸承件組置其中者。 ’、中〜金屬〜轴底端之結合段係可為—具有輥花表面之圓柱型 態者。 其中，該金屬心轴底端之結合段一侧係更可組設有一橫向凸伸之補強 部件者。 -中該塑膠偏心部底部中係可藉由包射一金屬棚而形成該0凹槽空間 者。 對照先前技術之功效： 即’本創作之主要目的，係在提供一種氣動研磨拋光機之偏心座結構改良， 其主要創作特點係在於該偏心座係藉由金屬心軸結合塑膠偏心部之特殊改良 結構設計’進以改善習知偏心座之缺弊，達到質輕、縮短製程、降低成 本之實用經濟效益，為其主要創作目的者。 【實施方式】 為使貝審查委員對本創作之目的、特徵及功效能夠有更進一步之瞭解與 認識，茲請配合【圖式簡單說明】詳述如后： 、胃配"參閱第1、2、3、4、5圖所示，係本創作氣動 研磨拋光機之偏心座結構改良之較佳實施例，該所指偏心座（A)為组裝於 既有氣動研磨抛光機（i 〇)中的構件（請參第工、2圖所示），主要藉以產生 振動式之旋轉運動，其係包括： 曰 屬。軸（2 0 )，其頂端為驅動段（2丄）藉以供氣動研磨抛光 M261316 (例如藉由插鍵方式），該金屬 ，該結合段係可為一具有輥 機（1 ο )之葉輪組（l 1)定向套合帶動 心轴（2 0)之底知則具一結合段（2 2、 花表面（2 3)之圓柱型態；以及 一塑膠偏心部⑴），係-體射出成型於前述金屬心轴（10)底端 呈偏心狀態，該塑膠偏心部須採用耐高溫之塑膠材料關應運轉時之高 溫狀態，該塑膠偏心部（3 〇 )之頂部一預定深度係與金屬心轴（1 0 )之 結合段（2 2 )相連結為-體，塑膠偏心部（3 ◦)之底部中再形成有一圓 筒狀之内凹槽（川’藉以供氣動研磨拋光機（i Q )之研磨盤（i 2 )拖組 軸承件（1 3 )組置於其中者； 其中，該金屬心轴（2 〇 )底端之結合段（2 2 )-侧向係更可組 設有-橫向凸伸之補強部件，此詳如第5圖所示，該補強部件係可為一匕形金 屬片（4 ◦)，該金屬片之立向侧設有穿孔（4 i )，以使金屬心轴（2 〇) 之結合段（2 2 )亦對應設有貫孔（2 4 )，復利用螺检（5 〇 )穿過 該穿孔及貫孔後以螺帽（5 i )鎖固定位者；藉由該金屬片（4 〇 )的 增設，主要是可對塑膠偏心部（3 〇 )形成結構補強作用，進以提昇強度 防止彎曲變形之產生者。 其中’該塑穋偏心部（3 〇)底部中係可藉由包射一金屬環圈（6◦)而 形成該内凹槽空間者；又’該金屬環圈（6 〇 )之外周係可設製成輥花面（6 1)型態，以與塑膝偏心部（3 〇)之間形成牢固咬合連結狀態者。 又其中’該金屬心軸（2 〇)以及L形金屬片（4 〇 )之底端係可 δ又片呈與内凹槽（3 i)頂面平齊狀態，藉此當研磨盤（^ 2)之樞組輛承件 8 M261316 (13)組入其中時，該枢組轴承件（ 0)及L形金屬片（4〇)之底端 2圖所示）。 1 3 )之頂端將可抵靠於金屬心轴（2 獲得比較堅固、耐熱的支承面（詳如第 【功效說明】 本創作功致增進之事實如下·· 要件者 .種藉由金屬心軸-體結合塑膠偏心部所構組成之創新氣動研磨 域之偏心座⑷結構鶴，業界首脑符合新_之新雛 2、藉 ，敌改良結構設計，由於該偏心座（A)佔有大部份體積之偏心 整：質量較輕的塑膠材料代替，因此重量上可大幅減輕，更利於 力、更適合長時 產品之輕量化，讓使用者操作能更加輕鬆省 間操作者。 =該_偏心部（3〇)可藉_手段—體成型於金屬心轴（ι〇) 因此比起習知知賴迦多道車、跡工才鎌成之設計， 加工1將可大幅縮短該偏心座的製造過程，達到大幅降低材料、· :本’更利於大量生產且將廢料量降至最低之較佳產業利用 本創作可產生之新功效如下: 藉由該金屬 設計，更可進— 側彎曲變形者。 (2 0 )之結合段（2 2 )更組設有補強部件之結構 步對塑膠偏心部（3 Q)形成結構補強作用，進以防止該 M261316 【圖式簡單說明】 第1圖：係本創作偏心座與氣動研磨拋光機組合關係之立體分解示意圖。 第2圖：係本創作偏心座與氣動研磨拋光機組合關係之平面簡示圖。 第3圖：係本創作偏心座之立體外觀圖。 第4圖：係本創作偏心座之金屬部件分解立體圖。 第5圖：係本創作偏心座構造之立向剖視圖。 第6圖：係習知偏心座之立體外觀圖。 第7圖·係習知偏心座之立向剖視圖。 【主要元件符號說明】 氣動研磨拋光機- -(10) 葉輪組 —(11) 研磨盤---------- -(12) 才區組轴承件 —-(13) 偏心座 — (A) 金屬心轴 -(20) 驅動段------ — (21) 結合段-------- -(22) 輥t表面 — (23) 貫孔---------- — (24) 塑膠偏心部------ -(30) 内凹槽 —(31) 金屬片---------- --(40) 穿孔---------- —(41) 螺栓---------- -(50) 螺帽-------- —(51) 金屬¥圈 -(60) 輥花面 — (61)M261316 8. Description of the new type: [Technical field to which the new type belongs] This creation relates to a pneumatic grinding and polishing machine structure, especially the designer of the innovative structure type of its internal eccentric seat assembly. [Previous technology] According to the press, the pneumatic grinding and polishing machine is a kind of grinding and polishing hand tool using air pressure as the driving source; the body has a set of eccentric seats, which can generate vibration when driven by air pressure, and transmit this vibration to The next square grinding disc; and what this creation intends to improve is the eccentric seat member. For the conventional structure, please refer to the element 308 in Figure 2 of the National Patent Gazette No. 517618, and further refer to As shown in Figure 6 of this creation, the top section is a mandrel 71 and the bottom section is an eccentric block 72. The inside of the eccentric block must be hollowed out to form a receiving groove 73, so that the bearings for the grinding disc pivot group can be placed therein. ; One of the known structural types is that the mandrel and the eccentric block are made separately, and then welded and combined. However, because the welding part of the eccentric block is located on the top wall of the receiving groove, the thickness there is very weak, so It does not provide sufficient welding strength, and increasing the thickness must increase the volume and weight of the overall structure, which is not conducive to the development trend of lightweight products. The second type of Xilu knows the structure, as shown in Figure 7 of this creation, it is Will be The mandrel 71 and the eccentric block 72 are made of a single piece of metal material; however, this conventional structure has found the following problems in practical application experience: 1. Due to the difference in volume ratio between the mandrel and the eccentric block The disparity, so the structure type made of a single piece of metal material can still be taken from the maximum outer diameter of the eccentric block, which has caused a substantial increase in material costs, and the subsequent processing must go through multiple turning and milling procedures to form The shape of the mandrel and the eccentric block, during which not only a large amount of metal waste is generated and wasted, but also an inner groove is formed in the 5261261 section for the grinding disc pivot bearing assembly of the pneumatic grinding and polishing machine. Which of them. ′ 、 Medium ~ Metal ~ Bottom end of the shaft can be a cylindrical shape with roller surface. Among them, one side of the bonding section of the bottom end of the metal mandrel can be further provided with a transversely protruding reinforcing member. -The bottom of the plastic eccentric part can be formed by shooting a metal shed to form the 0-groove space. Contrast with the effect of the previous technology: That is, the main purpose of this creation is to improve the structure of the eccentric seat of a pneumatic grinding and polishing machine. The main creative feature is that the eccentric seat is a special improvement of the plastic eccentric by combining a metal mandrel and a plastic eccentric part. Structural design is used to improve the shortcomings of the conventional eccentric seat, and to achieve practical economic benefits of light weight, shortened process and reduced costs, and its main creative purpose. [Implementation] In order to enable the review committee to have a better understanding and understanding of the purpose, characteristics and effects of this creation, please cooperate with [Simplified illustration of the drawing] as detailed below: As shown in Figures 3, 4, and 5, these are the preferred embodiments of the structure improvement of the eccentric seat of the pneumatic grinding and polishing machine of the original creation. The eccentric seat (A) refers to the assembly of the existing pneumatic grinding and polishing machine (i). The components in (see Figure 2 and Figure 2) are mainly used to generate vibration-type rotary motion, which includes: The top of the shaft (2 0) is a driving section (2 丄) for pneumatic grinding and polishing M261316 (for example, by inserting a key), the metal, and the combined section may be an impeller group with a roller (1 ο) (L 1) The bottom of the mandrel (20) is driven by a directional sleeve, which has a combined segment (2, a cylindrical shape with a flower surface (2 3); and a plastic eccentric part ⑴). The bottom end of the metal mandrel (10) is in an eccentric state. The plastic eccentric part must be made of a high temperature resistant plastic material to meet the high temperature state during operation. A predetermined depth on the top of the plastic eccentric part (30) is connected to the metal mandrel. The connecting section (2 2) of (1 0) is connected as a -body, and a cylindrical inner groove is formed in the bottom of the plastic eccentric part (3 ◦). The grinding disc (i 2) and the bearing assembly (1 3) of the grinding disc (1 2) are placed therein; among them, the coupling section (2 2) at the bottom end of the metal mandrel (2 0) -the lateral system may be further provided- A transversely protruding reinforcing member, as shown in Fig. 5, the reinforcing member may be a dagger-shaped metal sheet (4 ◦). A perforation (4 i) is provided to the side, so that the joint section (2 2) of the metal mandrel (20) is correspondingly provided with a through hole (2 4), and the screw inspection (50) is used to pass through the perforation and After the through-hole is locked with a screw cap (5 i); the addition of the metal sheet (40) mainly forms a structural reinforcing effect on the plastic eccentric part (30), and improves the strength to prevent bending deformation Producer. Among them, 'the plastic eccentric part (30) bottom part can be formed by enveloping a metal ring (6◦) to form the inner groove space; and' the metal ring (60) The outer peripheral system can be made into a roller flower surface (61) shape, so as to form a strong bite connection with the plastic knee eccentric part (30). Among them, 'the metal mandrel (20) and L shape The bottom end of the metal piece (4 〇) can be δ and the piece is flush with the top surface of the inner groove (3 i), so as to be the pivot group of the grinding disc (^ 2). When inserted into it, the bottom end of the pivot bearing assembly (0) and L-shaped metal sheet (40) are shown in Figure 2). The top of 1 3) will be able to bear against the metal mandrel (2 to obtain a relatively strong, heat-resistant support surface (for details, as described in [effect description] The fact that the creative effect is enhanced is as follows: -The body is combined with the plastic eccentric part, which is an eccentric seat structure crane with an innovative aerodynamic grinding field. The industry leader conforms to the new _ new chick 2. Borrowing and improving the structural design of the enemy, because the eccentric seat (A) occupies most of the volume Eccentric adjustment: lighter weight plastic materials can be substituted, so the weight can be greatly reduced, which is more conducive to power and more suitable for long-term product lightweighting, allowing users to operate more easily and save operators. = This_eccentric part ( 3〇) Can be borrowed by means—body is formed on the metal mandrel (ι〇). Compared with the conventional design of the Laijia multi-lane car and tracker, the processing 1 will greatly shorten the manufacturing process of the eccentric seat. To achieve a significant reduction in materials, ...: This is a better industry that is more conducive to mass production and minimizes the amount of waste. The new effects that can be produced by this creation are as follows: With the metal design, it is more accessible-the side bending deformation. (2 0) 2 2) More structural steps with reinforcing parts form a structural reinforcing effect on the plastic eccentric part (3 Q) to prevent the M261316 [Simplified illustration of the drawing] Figure 1: The eccentric seat and pneumatic grinding and polishing machine of this creation A three-dimensional exploded schematic diagram of the combination relationship. Figure 2: This is a schematic plan view of the combination relationship between the eccentric seat and the pneumatic grinding and polishing machine. Figure 3: The three-dimensional appearance of the eccentric seat of this creation. Figure 4: This creation Exploded perspective view of the metal parts of the eccentric seat. Figure 5: A vertical sectional view of the structure of the eccentric seat in this creation. Figure 6: A perspective external view of the conventional eccentric seat. Figure 7: A vertical sectional view of the conventional eccentric seat. [Description of Symbols of Main Components] Pneumatic Grinding and Polishing Machine--(10) Impeller Sets-(11) Grinding Disks -----------(12) Only Zone Group Bearings —- (13) Eccentric Blocks — (A) Metal mandrel-(20) Drive section ------ — (21) Combined section ---------(22) Roller t surface — (23) Through hole ---- -------(24) plastic eccentric -------(30) inner groove-(31) metal sheet -----------(40) perforated- -------- — (41) Bolt -----------(50) Nuts -------- — (51) Metal ¥ circle-(60) Roller surface — (61)