1322742 ，九、發明說明： 【發明所屬之技術領域】 本發於-種治具，尤其係—種央持工制 【先前技術】 、 去細料面躲或加讀床之央躲具—織動吸盤或 老虎鉗’其夾持方式係直接夾持。 -：青=第：圖所示，其係採用磁力吸盤夾持工件之應用於研磨製程之 盤工 =磁力轉工件5，砂輪6於工件5表面進行研磨以此將 裉at二工件5與磁力吸盤4之接觸面為西面或存在彎曲變 Έ :續除後，工練復形變，其已加工為心；;=之支 會 .之平面 使用老虎钳夹持工件時’亦會由於老虎 而使得當治鱗除後工件發生變形。 聽勒點布不均勻 士斗· ft隨著現代工業製品加卫精度要求越來越高，傳统户且及盆杰拉 方式會造紅件變形而無法滿足絲n具及其夾持 【發明内容】 鑑於上述肢，有必要提供—種可提高辑加科度之治且。 -種治具，用於固持工件，其包括一基盤 /、 系統’該基盤具有-中空腔，該中空腔填充有-流動 ，設有複^通孔’該等通孔與該中空腔相通支ς === 腔相連，其控制該中空腔内流動媒介之壓力。壓力控悔統與該中空 相較習知之技術’本發明所述 得所述治具與:^件面之接觸方式為“，—==持工件’使 等之支撑力，因而工件面不平整或為曲面時，供工件以均 勻之支撐，以此可有效避免工件之 之各邛分亦可獲得均 【實施方式】 ° 請參照第二圖’本發明所述之治具工包括 一壓力控制系統16。 M 12複數支撐桿14及 1322742 5月同時參照第二圖’基盤12具有一工作面120及一中空腔126，工作 面120上兩相對之邊緣分別設有兩承重塊124，且工作面120於兩承重塊 124之間開設有複數通孔122，該等通孔122與中空腔126相通。基盤12 之一側還開設有一通道128，該通道128與中空腔126相接，使得中空腔 126可與外界相導通。其巾，中空腔126内填充有一流動媒介，該流動媒介 可為氣體，亦可為液體。 支禮桿14包括一活塞體142、一承重桿144及弧面觸頭146，活塞體 142谷置於通孔122内且密封該通孔122 ;承重桿144為一桿體，其一端連 接於該活塞體142，另一端連接弧面觸頭146且伸出於通孔122。 壓力控制系統16連接且密封通道128，其控制中空腔126内流動 之壓力。 ' 於本發明第-實施方式中，中空腔126内填充之流動媒介為液體，如 液壓油。壓力控_統16包括油壓馬達16〇、_管161及油壓調節闕162。 油壓管161之-端連通通道似，另一端連接於油壓馬達16〇，油壓 162設於油壓管161内，其調控液壓油輸入或導出中缝126。藉由油 達160及油壓調節閥162則可調控中空腔126内之油廢。 請參照第四圖，於本發明第二實施方式中，中空腔126内填充 媒介為氣體’如驗H壓力·祕16包括空級賴165、氣 166及氣壓調節閥167。氣壓管166之一端連接通道128，另 165，氣壓調節閥167設於氣壓管166内，其調控壓縮氣體輸入= =出中工腔126。藉由空氣壓縮機165及氣壓調節闕腔 126内之氣壓。 工腔 請參照第五圖，本發明所述之治具i於加工過程中爽持 兩端分別置於基盤12之兩承重塊124上，工件2之中間部分L 支撐# I4支撐。當工件2受钉之施力時，藉 ，126内流動媒介動至一適當值，該等支撐桿14伸出 與工件2之接觸點之高度而調整，同時該等支撐桿Μ提供其 支撐力，以此使得工件2可避免因受力不均勻而發生形變、。 ：等之 可以理解地，本發明較佳實施方式所述之承重塊124亦可省略不要。 ⑧ 1322742 ’其與該等支樓捍14配合使 可以理解地’基盤12亦可為一磁力吸盤 用以更穩固夾持工件2。 綜上所述，本發明符合發明專利要件，爰依法提出專利申請。惟，以 上所述者僅為本㈣之祕實施对，本發明之翻並㈣上述實施方式 為限，舉凡熟習本案技藝之人士援依本發明之精神所作之等效修飾或變 化，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 第一圖係習知之磁力吸盤夾持工件示意圖； 第二圖係本發明較佳實施方式之治具結構示意圖；1322742, Nine, invention description: [Technical field of invention] The present invention is issued in the form of a fixture, especially the system of the central government (previous technology), to hide the fine material or to read the bed. The suction cup or the vise's clamping method is directly clamped. -: Cyan = No.: As shown in the figure, it is a magnetic chuck that holds the workpiece and is applied to the grinding process. The magnet is turned to the workpiece 5. The grinding wheel 6 is ground on the surface of the workpiece 5 to make the workpiece 2 and the magnetic force. The contact surface of the suction cup 4 is west or there is a bending change: after the continuous removal, the work is compounded and deformed, and it has been processed into a heart;; = the branch. When the plane is clamped with a vise, it will also be caused by the tiger. When the scale is removed, the workpiece is deformed. The uniformity of the cloth is uneven. With the increasing requirements of the precision of modern industrial products, the traditional household and the pottery method will make the red parts deform and cannot satisfy the silk n and its clamping. In view of the above-mentioned limbs, it is necessary to provide a kind of treatment that can improve the degree of addition. a fixture for holding a workpiece, comprising a substrate/system, the substrate having a hollow cavity, the hollow cavity being filled with a flow, and having a plurality of through holes that communicate with the hollow cavity ς === The cavity is connected, which controls the pressure of the flow medium in the hollow cavity. The technique of the pressure control repentance and the hollow phase is better than the conventional technology. The contact method of the jig and the surface of the invention is ", -== holding the workpiece" to make the support force, and thus the workpiece surface is uneven. Or when the surface is curved, the workpiece is evenly supported, so that the parts of the workpiece can be effectively avoided. [Embodiment] Please refer to the second figure. The fixture of the present invention includes a pressure control. System 16. M 12 plural support rods 14 and 1322742 May also refer to the second figure 'the base plate 12 has a working surface 120 and a hollow cavity 126, two opposite weights on the working surface 120 are respectively provided with two load-bearing blocks 124, and work The surface 120 defines a plurality of through holes 122 between the two load-bearing blocks 124. The through holes 122 communicate with the hollow cavity 126. A channel 128 is also formed on one side of the base plate 12, and the channel 128 is connected to the hollow cavity 126 to make the hollow The cavity 126 can be electrically connected to the outside. The napkin 126 is filled with a flow medium, which can be a gas or a liquid. The support rod 14 includes a piston body 142, a load-bearing rod 144 and a curved surface contact. The head 146, the piston body 142 is placed in the through hole 12 2, the through hole 122 is sealed; the load bearing rod 144 is a rod body, one end of which is connected to the piston body 142, and the other end is connected to the curved surface contact 146 and protrudes from the through hole 122. The pressure control system 16 is connected and sealed 128, which controls the pressure flowing in the hollow cavity 126. In the first embodiment of the present invention, the flow medium filled in the hollow cavity 126 is a liquid, such as hydraulic oil. The pressure control system 16 includes a hydraulic motor 16〇, _ The tube 161 and the oil pressure adjusting unit 162. The oil pressure tube 161 has a terminal-like communication passage, and the other end is connected to the hydraulic motor 16A. The oil pressure 162 is disposed in the oil pressure tube 161, and regulates the hydraulic oil input or the outlet slit 126. The oil waste in the hollow cavity 126 can be regulated by the oil up to 160 and the oil pressure regulating valve 162. Referring to the fourth figure, in the second embodiment of the present invention, the medium filled in the hollow cavity 126 is a gas. The pressure secret 16 includes an air level 165, a gas 166 and a gas pressure regulating valve 167. One end of the air tube 166 is connected to the channel 128, and another 165, the air pressure regulating valve 167 is disposed in the air tube 166, which regulates the input of the compressed gas == The working chamber 126. The air chamber 126 and the air pressure adjusting chamber 126 For the working chamber, please refer to the fifth figure. The jig of the present invention is placed on the two bearing blocks 124 of the base plate 12 during the processing, and the middle portion L of the workpiece 2 supports the #I4 support. When the workpiece 2 is subjected to the force of the nail, the flow medium in the 126 is moved to an appropriate value, and the support rods 14 are extended to the height of the contact point with the workpiece 2, and the support rods provide the supporting force. Therefore, the workpiece 2 can be prevented from being deformed due to uneven force. It is understood that the load-bearing block 124 according to the preferred embodiment of the present invention can also be omitted. 8 1322742 'It cooperates with the sills 14 to make it understandable that the base 12 can also be a magnetic chuck for more secure gripping of the workpiece 2. In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only for the implementation of the present invention, and the above-mentioned embodiments are limited to those skilled in the art, and equivalent modifications or variations made by those skilled in the art in accordance with the spirit of the present invention should be covered. It is within the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic view of a conventional magnetic chuck holding workpiece; the second figure is a schematic view of a structure of a jig according to a preferred embodiment of the present invention;
第三圖係第二圖係沿ΠΙ-ΙΠ線於本發明第一實施方式之剖面示意圖； 第四圖係第二圖係沿m-πι線於本發明第二實施方式之剖面示意圖； 第五圖係本發明所述之治具之工作示意圖。 【主要元件符號說明】 〔習知〕 磁力吸盤 4 砂輪 6 固持工件 5 〔本發明〕 治具 1 弧面觸頭 146 基盤 12 壓力控制系統 16 工作面 120 油壓馬達 160 通孔 122 油壓管 161 承重塊 124 油壓調節閥 162 中空腔 126 空氣壓縮機 165 通道 128 氣壓管 166 複數支撐桿 14 氣壓調節閥 167 活塞體 142 工件 2 承重桿 144The second drawing is a cross-sectional view of the first embodiment of the present invention along the ΠΙ-ΙΠ line; the fourth drawing is a cross-sectional view of the second embodiment of the present invention along the m-πι line; The drawing is a schematic view of the operation of the jig of the present invention. [Main component symbol description] [Practical] Magnetic chuck 4 Grinding wheel 6 Holding workpiece 5 [Invention] Fixture 1 Curved contact 146 Base plate 12 Pressure control system 16 Working surface 120 Hydraulic motor 160 Through hole 122 Oil pressure tube 161 Load-bearing block 124 Oil pressure regulating valve 162 Cavity 126 Air compressor 165 Channel 128 Air pressure tube 166 Multiple support rod 14 Air pressure regulating valve 167 Piston body 142 Workpiece 2 Load-bearing rod 144