M353791 八、新型說明： 【新型所屬之技術領域】 本新型與用電極代替刀具的技術有關，特別是指一種 放電加工機的擺動式加工頭的煞車裝置。 【先前技術】 放電加工是以電極取代刀具的一種加工技術，以往的 c是讓加工頭進行三轴式的 =極相對待加工的工件進行上或下、左或右、遠或近 過如Lt!讓加工養對工件進行更複雜的加工，不 成此種;^ 在曲面上加工’此種放電加工機將難以達 已開發出瓖加工頭能夠擺動 〇811f)?47,隹中華民國專利申請案號 0㈣2474、專利名稱「線放電加工 鲁此技術，擺動方式是以—轉錢 ^件中便仏及 連接該加工頭的一端連二連桿，該連桿又 -旋轉該轉盤H °員另-^則樞接固定，如此 “ I使該連桿繞著該轉盤旋轉位移， f動该加工頭擺動； 不過此種擺動的結構是採用高精度無背隙 饲服馬達(一一)，當無電源時頭部:= 重而向下轉動，與使用一般的減速馬達不同，因而機台於 5 M353791 加工中，若電源停電將造成移位而損壞工件，故必須有及 時剎車裝置，本創作人便針對此點加以改進，開發出一種 放電加工機的擺動式加工頭的煞車裝置。 【新型内容】 本新型目的在提供一種放電加工機的擺動式加工頭的 煞車裝置，以一壓缸驅動一活動夾臂作動，該活動夾臂並 配合一被動夾臂由兩侧夾住驅動該加工頭擺動的轉盤，使 該加工頭煞車，能讓該加工頭在預設的位置定位並進行加 工。 為達前述目的，該煞車裝置包含一基座、一壓缸、一 延伸臂、'活動爽臂及一被動炎臂，該基座設置在該放電 加工機，該壓缸設置在該基座，該延伸臂設置在該壓缸， 該活動夾臂樞設在該延伸臂，該被動夾臂枢設在該延伸 臂，且該活動夾臂以一推抵凸塊抵頂該被動夾臂的一被動 凸塊； 以該壓缸驅動該活動夾臂枢轉，該活動夾臂會以該推 抵凸塊連動該被動夾臂的被動凸塊，使該被動夾臂與該活 動夾臂反向樞轉，便能以該活動夾臂及該被動夾臂夾住驅 動該加工頭擺動的轉盤，使該加工頭定位；而在當電力停 M353791 止時壓缸在沒有氣壓傳動下會停止推抵活動夾臂，則活動 夾臂與被動夾臂會受到彈簧的反作用力進行樞轉進而挾持 轉盤達到加工頭定位。 【實施方式】 _ 本新型放電加工機的擺動式加工頭的煞車裝置，設置 , 在該放電加工機A的實施例如第1圖所示，與該加工頭B $ 及驅動該加工頭B擺動的轉盤C配合的狀態如第2圖所示， 該煞車裝置10的實施例如第3及4圖所示，包含： 一基座11，設置在該放電加工機A ; 一壓缸12,設置在該基座11，該壓缸12具一推桿121， 該放電加工機A提供該壓缸12電能以驅動該壓缸12控制 該推桿121伸出或縮入； 一延伸臂15，設置在該壓缸12 ; φ 一活動夾臂13，樞設在該延伸臂15，該活動夾臂13 一端具一煞車片131，另一端受該壓缸12的推桿121推抵 而使該活動炎臂13樞擺，該活動夾臂13上又具一推抵凸 ' 塊132，該推抵凸塊132在該活動夾臂13枢轉時可受連動 而樞擺；以及 一被動夹臂14，樞設在該延伸臂15，該被動夾臂14 一端具一煞車片141，該被動夾臂14的煞車片41與該活動 M353791 夾臂13的煞車片131相對，該被動夹臂14另一端與該活 動夾臂13的另一端相對且設置一彈簧142，該彈簧142兩 端分別與該活動夾臂13的另一端及該被動夾臂14的另— 端連接，該被動夾臂14相對該活動夹臂13的推抵凸塊132 成型一被動凸塊143，該被動凸塊143並受該活動夾臂13 - 的推抵凸塊132抵頂。 • 如第3圖所示，驅動該壓缸12的推桿121伸出且推抵 該活動夾臂13,該活動夾臂13會拖轉且同時見縮該彈菁 142蓄力，該活動夾臂13的煞車片131遠離該被動失臂二 的煞車片u卜該活動夾臂13的推抵凸塊132並樞擺且抵 頂該被動夾臂14的被動凸塊143,使該被動夹臂14與該活 $夾臂13反向樞轉’該被動夾臂14的煞車片i4i也同時 遠離該活動夾臂13的煞車片⑶，讓該二煞車片131、14; #離開該轉盤c，使該轉盤c在該二煞車片m、i4i間 轉動以控制該加工頭B擺動； 當如第4圖所示，驅動該麗紅12的轉121縮回，卞 彈簧H2的復原力能推抵該活動夾臂13及該被動二 樞轉復位，使該活動夾臂13的煞車片131及該被動 的煞車片⑷ <皮此接近且夹住該轉盤c，如第5圖所 該轉盤C停止，並達収位該加工·的目的； M353791 且當該放電加工機A停止時，會同時停止供給該煞車 裝置10的壓缸電能，該壓缸12的推桿121便會縮回，使 該彈簀142推抵該活動夾臂13及該被動夹臂14夹住該轉 盤C，讓該轉盤C在該放電加工機A停止的時候，也能保持 被夾住而定位的狀態； 另外，該煞車裝置10在配合該放電加工機A使用上， 可依使用者需求而搭配使用一組或一組以上的煞車裝置 M353791 【圖式簡單說明】 弟1圖本新型貫施例設置在放電加工機的立體圖。 第2圖本新型實施例與加工頭及轉盤配合的立體圖。 第3圖本新型實施例活動夾臂的煞車片與被動夾臂的煞車片遠 離的侧視圖。 . 第4圖本新型實施例活動夾臂的煞車片與被動夾臂的煞車片夾 住轉盤的側視圖。 ^ 第5圖本新型實施例加工頭擺動且定位的立體圖。 【主要元件符號說明】 《本新型》 放電加工機A 加工頭B 轉盤C 煞車裝置10 基座11 壓缸12 推桿121 活動夾臂13 煞車片131 推抵凸塊132 被動夹臂14 煞車片141 彈簧142 被動凸塊143 延伸臂15 10M353791 VIII. New description: [New technical field] This new type relates to the technology of replacing the tool with an electrode, in particular, a brake device for the oscillating machining head of the electric discharge machine. [Prior Art] EDM is a processing technique that replaces a tool with an electrode. In the past, c was used to make the machining head perform a three-axis type=pole relative to the workpiece to be machined up or down, left or right, far or near, such as Lt. Let the processing and processing of the workpiece more complicated processing, this is not the case; ^ processing on the surface 'this kind of electric discharge machine will be difficult to reach the development of the processing head can swing 〇 811f)? 47, the Republic of China patent application No. 0 (four) 2474, patent name "Line discharge machining Lu this technology, the swing mode is - transfer money in the middle of the note and the end of the processing head connected to the two links, the link again - rotate the turntable H ° member another - ^ is pivotally fixed, so "I make the link rotate around the turntable, f move the processing head to swing; but this swing structure is based on high-precision backlash-free feeding motor (one-one), when no When the power is on, the head:= is heavy and rotates downwards. It is different from the general use of the geared motor. Therefore, if the machine is in the process of 5 M353791, if the power supply is cut off, the workpiece will be displaced and the workpiece must be damaged. Therefore, the brake must be provided. Add this point Improved braking device developed oscillating working head of an electric discharge machine. [New Content] The purpose of the present invention is to provide a brake device for an oscillating machining head of an electric discharge machine, which is driven by a pressure cylinder to drive a movable clamp arm which is driven by a side of a movable clamp arm. The rotating head of the machining head oscillates the machining head, and the machining head can be positioned and processed at a preset position. For the above purpose, the brake device comprises a base, a pressure cylinder, an extension arm, a 'active cool arm and a passive fire arm, the base is disposed on the electric discharge machine, and the pressure cylinder is disposed on the base. The extension arm is disposed on the pressure cylinder, the movable clamp arm is pivotally disposed on the extension arm, the passive clamp arm is pivotally disposed on the extension arm, and the movable clamp arm abuts against the bump to abut the passive clamp arm a passive bump; driving the movable clamp arm to pivot, the movable clamp arm interlocking the passive bump of the passive clamp arm with the push-bending arm, and the passive clamp arm and the movable clamp arm are oppositely pivoted Turning, the movable clamp arm and the passive clamp arm can clamp the turntable that drives the machining head to swing, so that the machining head is positioned; and when the power stops M353791, the pressure cylinder stops pushing the activity without the air pressure transmission. When the clamp arm is used, the movable clamp arm and the passive clamp arm are pivoted by the reaction force of the spring to hold the turntable to reach the processing head. [Embodiment] The brake device of the oscillating machining head of the electric discharge machine of the present invention is provided, and the electric discharge machine A is mounted on the machining head B $ and the machining head B as shown in Fig. 1, for example. The state in which the turntable C is engaged is as shown in Fig. 2, and the brake device 10 is implemented as shown in Figs. 3 and 4, and includes: a base 11 provided in the electric discharge machine A; a pressure cylinder 12 disposed in the state a base 11, the pressure cylinder 12 has a push rod 121, the electric discharge machine A provides the electric power of the pressure cylinder 12 to drive the pressure cylinder 12 to control the push rod 121 to extend or retract; an extension arm 15 is disposed at the The pressure cylinder 12; φ a movable clamp arm 13 pivotally disposed on the extension arm 15, the movable clamp arm 13 has a brake piece 131 at one end, and the other end is pushed by the push rod 121 of the pressure cylinder 12 to make the movable arm 13 pivoting, the movable clamping arm 13 further has a pushing protrusion block 132, the pushing protrusion 132 can be pivoted when the movable clamping arm 13 pivots; and a passive clamping arm 14 The extension arm 15 is disposed at one end of the passive clamp arm 14 with a brake piece 141, the brake shoe 41 of the passive clamp arm 14 and the movable M353791 clamp arm 13 The other end of the passive clamp arm 14 is opposite to the other end of the movable clamp arm 13 and is provided with a spring 142. The two ends of the spring 142 are respectively opposite to the other end of the movable clamp arm 13 and the passive clamp arm 14 In the other end, the passive clamping arm 14 forms a passive protrusion 143 with respect to the pushing protrusion 132 of the movable clamping arm 13, and the passive protruding piece 143 is abutted by the pushing protrusion 132 of the movable clamping arm 13 - . • As shown in FIG. 3, the push rod 121 driving the pressure cylinder 12 is extended and pushed against the movable clamp arm 13, and the movable clamp arm 13 is towed and simultaneously reduces the power of the elastic 142, the movable clamp The braking piece 131 of the arm 13 is away from the pressing piece 132 of the passive arm 2 and pushes against the protruding protrusion 132 of the movable clamping arm 13 and pivots against the passive protrusion 143 of the passive clamping arm 14 to make the passive clamping arm 14 is pivoted in the opposite direction to the live arm 13; the brake shoe i4i of the passive clamp arm 14 is also away from the brake shoe (3) of the movable clamp arm 13 so that the two brake shoes 131, 14; # leave the turntable c, The turntable c is rotated between the two brake shoes m, i4i to control the swing of the machining head B; as shown in Fig. 4, the rotation 121 for driving the brilliant red 12 is retracted, and the restoring force of the spring H2 can be pushed back The movable clamp arm 13 and the passive two pivotally reset, so that the brake shoe 131 of the movable clamp arm 13 and the passive brake shoe (4) are close to and clamped to the turntable c, as shown in FIG. Stopping and reaching the purpose of the processing; M353791 and when the electric discharge machine A is stopped, the cylinder electric energy supplied to the brake device 10 is simultaneously stopped, the cylinder 12 The push rod 121 is retracted, so that the magazine 142 pushes against the movable clamp arm 13 and the passive clamp arm 14 clamps the turntable C, so that the turntable C can be kept while the electric discharge machine A is stopped. In the state of being clamped and positioned; in addition, the brake device 10 can be used in conjunction with the electric discharge machine A, and can be used in combination with one or more sets of brake devices M353791 according to the user's needs. [Simple description of the drawing] The present invention is a perspective view of an electric discharge machine. Figure 2 is a perspective view of the new embodiment in cooperation with the processing head and the turntable. Fig. 3 is a side elevational view of the brake shoe of the movable clamp arm and the brake shoe of the passive clamp arm of the present embodiment. Fig. 4 is a side elevational view of the turntable of the movable clamp arm of the present embodiment and the brake shoe of the passive clamp arm. ^ Fig. 5 is a perspective view of the machining head of the novel embodiment oscillating and positioning. [Main component symbol description] "This new type" EDM A machining head B Turntable C Brake device 10 Base 11 Cylinder 12 Push rod 121 Moving clamp arm 13 Brake plate 131 Pushing the bump 132 Passing clamp arm 14 Brake 141 Spring 142 passive bump 143 extension arm 15 10