1298285 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種電子式扭力扳手，尤指一種具有方 便讀取、高精度及扭力設定值不易被變更之電子式扭力扳 手。 【先前技術】 如第5圖所示，為習用之扭力扳手6，其係具有一中 空套管6 1，該套官6 1—端樞設一凸出該套管6 1之驅 動部6 2，且該驅動部6 2具有一延伸入該套管6丄内部 之第一桿6 2 1，並於該套管β 1内部鄰近第一桿6 2工 依序设有一作動塊6 3、一彈簣64及一頂推桿65，且 該頂推桿6 5另與一設於套管6 i外周之握把6 6相連結 ，使得在设定扭力值時，該握把6 6可連動頂推桿6 5壓 抵該彈簧6 4，繼而頂推作動塊6 3，俾使該作動塊6 3 迫緊第一桿6 2 1，以完成扭力值之設定。 使用時，當驅動部6 2施加之力量超過原先設定之扭 力值，該作動塊6 3會與第一桿6 2 1成滑脫狀旅發出聲 音，=提醒使用者已達到所設定之扭力值。但此種扭力扳 手在讀取扭力值時較不方便且在使用上常因不小心碰觸該 握把6 6，致使設定好的扭力值產生變化，故，實用性不 高。 而另一種電子式扭力扳手7，如第6圖所示，其係具 有一中空套管71，該套管71—端樞設—凸出該套管7 1之驅動部7 2，且該驅動部7 2具有一延伸入該套管7 讲塊二7γ_二桿 外周之握f :L 桿7 6另與-設於套管71 扭力踯知裝置7 8，姑士 a: 1外周中段處設有一 感知器及‘示5|，二：；則知裝置7 8具有轉換電路、 變電阻所構二“感知器係為一具滑移桿781之可 連動滑移t二1’錢技力值時，該頂撐塊7 5會 該顯示作：’並透過該可變電阻將扭力值顯示於 方式，不但結構上較為繁雜，且當田、塊7 5連動之 塊75間之雜，、=:_移桿781與_ 用摩不w成扭力值產生相當大的誤差，加上使 化，二碰觸該握把’―致使設定好的扭力值產生變 【發明内容Γ扳手皆有加以改良之必要。 電子式扭=主要目的’在於解決上述的問題而提供一種 咸測；詈其係於一具有握把部之套管内部設有-感裝該感測裝置與驅動部之第-桿相接觸並利用電 性受信裝置相連結，俾將所測知之扭力值顯* 於。d、套皆外周之受信裝置’以達到方便讀取的功用 〇 本毛月之次一目的，在於該感測裝置係利用第二螺桿 刖進的=離對彈性元件產生壓力，並搭配該第—桿異於驅 動β\槽直徑減測裝置之響輪間之關係，藉此， 使距離、壓力及直徑間之特定關係，可由該受信裝置内之 1298285 一運ίί式加以運算’俾以具有高精準度的功效。 作用，當在於利用卡合部與環套間之螺合 她朝向_部位移使而卡合部與環 設定的作用，反之，當卡合部與ς分 保扭力=值不會被改變的拥。 月具有確 為達則述之目的，本發明係包括： 一中空套管，其外周套設-握把；BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic torque wrench, and more particularly to an electronic torque wrench that is easy to read, has high precision, and is not easily changed in torque setting. [Prior Art] As shown in Fig. 5, it is a conventional torque wrench 6 which has a hollow sleeve 6 1 , and a sleeve 6 1 end is pivotally provided with a driving portion 6 2 protruding from the sleeve 6 1 And the driving portion 6 2 has a first rod 6 2 1 extending into the inside of the sleeve 6 , and an operating block 6 3 is arranged adjacent to the first rod 6 2 inside the sleeve β 1 . a magazine 64 and a push rod 65, and the jack 6 6 is coupled to a grip 66 provided on the outer circumference of the sleeve 6 i so that the grip 6 6 can be interlocked when the torque value is set. The push rod 6 5 is pressed against the spring 64, and then the actuating block 6 3 is pushed up, so that the actuating block 6 3 is pressed against the first rod 6 2 1 to complete the setting of the torque value. In use, when the force applied by the driving portion 62 exceeds the originally set torque value, the actuating block 63 will slip out of the first rod 6 2 1 to sound, and the user is reminded that the set torque value has been reached. . However, such a torque wrench is inconvenient in reading the torque value and often inadvertently touches the grip 6 6 in use, resulting in a change in the set torque value, so the utility is not high. Another type of electronic torque wrench 7, as shown in Fig. 6, has a hollow sleeve 71, which is pivotally-projected to protrude from the driving portion 7 2 of the sleeve 71, and the drive The portion 7 2 has a grip extending into the outer sleeve of the sleeve 7 7 γ_ two rods f: L rods 7 6 and - is provided in the sleeve 71 torque sensing device 7 8, aussie a: 1 mid-peripheral section There is a sensor and 'show 5|, two:; then the device 7 8 has a conversion circuit, a variable resistance structure 2 "the sensor system is a sliding bar 781 can be linked to slip t 2 1 money skills In the case of the value, the top support block 75 will be displayed as: 'and the torque value is displayed in the mode through the variable resistor, which is not only complicated in structure, but also the block 75 between the field and the block 75. =: _ Shifting rods 781 and _ use the torque to produce a considerable error, plus the two, touch the grip '- cause the set torque value to change [invention content Γ wrenches have The necessity of improvement. The electronic twist = the main purpose 'is to solve the above problem and provide a salt test; the tie is provided inside a sleeve having a grip portion - The measuring device is in contact with the first rod of the driving portion and is connected by the electric receiving device, and the measured torque value is displayed on the d. The outer peripheral receiving device is configured to facilitate the reading function. The second purpose of the month is that the sensing device uses the second screw to push the pair of elastic elements to generate pressure, and the relationship between the first and the second rods is different from the driving of the β\slot diameter reducing device. Thereby, the specific relationship between the distance, the pressure and the diameter can be calculated by the 1298285 one-way operation in the trusted device to achieve high precision. The function is to use the engaging portion and the ring sleeve. Screwing her toward the _ part displacement makes the engagement part and the ring set the role, and vice versa, when the engagement part and the 保 保 保 = = = = = = = = = = = = The utility model comprises: a hollow sleeve with a peripheral sleeve-grip;
驅動部，該驅動部伸設有一第一桿，且該第— 握把裝⑤於上述套管之内部，使該驅動部凸 套官之-端並於該套管相樞接，並於該第—桿遠離邻 之一端具有一弧槽； Ό| 感測裝置，係裝設於套管内部並抵頂該弧槽， 感測裝置經電性連結而與一受信裝置相連。 “ 本發明之上述及其他目的與優點，不難從下述所選用 實施例之詳細說明與附圖中，獲得深入了解。 、 當然，本發明在某些另件上，或另件之安排上容許有 所不同，但所選用之實施例，則於本說明書中，予以^細 説明，並於附圖中展示其構造。 ^ 【實施方式】 请參閱第1圖至第4圖，圖中所示者為本發明所選用 之實施例結構，此僅供說明之用，在專利申請上並不受此 種結構之限制。 本實施例之電子式扭力扳手，如第1圖至第3圖所示 1298285 ’其係包括： 一中空套管1，其外周套設一握把丄工。 h 一驅動部2，該驅動部2伸設有一第一桿2丄，且該 第一桿2 1由異於握把丄i一端裝設於上述套管i之内部 ’使該驅動部2凸出於套管1之-端並於該套管相樞接 ，並於該第一桿2 1遠離驅動部2之一端具有一弧槽2 2 Ο —… 感测裝置3，係裝設於套管1内部並抵頂該弧槽2 2，於本實施例中，該感測裝置3包含一量測單元4、一 設定單元5及一位於該量測單元4與設定單元5間之彈性 兀件3 1，該量測單元4於本例中，係由一扭力量測組4 1與一距離量測組4 2組成，該扭力量測組4 1包括一響 輪4 1 1、一頂撐塊4 1 2及一感測片4 1 3，該響輪4 1 1之一侧對應於弧槽2 2，另一侧梅設於頂撐塊4 1 2 内，且該頂撐塊4 12異於響輪411之一端則貼合該感 測片4 1 3，而該距離量測組4 2則由一設於套管丄遠離 感測片4 1 3—端之接收器4 2 1及一與接收器4 2工相 對應之發射器4 2 2組成，於本實施例中，該接收器4 2 1係為一磁條而發射器42 2則為一感應片，且該感應片 與彈性元件3 1遠離感測片之一端相接觸。 該設定單元5包含一與該感應片相連結之第二螺桿$ 1、一卡合部5 2及一依序套碌於第二螺桿5 1之第一彈 η 5 3與套5 4 ’且該卡合部5 2經位移後可與該環 套5 4相螺合，且該感測裝置3中之感測片4 1 3與感應 1298285 片分別經電性連結而與一受信裝置5 5相連，於本例中， 該受信裝置5 5係指一内含運算程式之顯示器。 本發明於設定扭力時，先將卡合部5 2略微前移，讓 卡合部5 2與環套5 4相螺合，此時，該感應片恰位於磁 條右侧端面之下方，因卡合部5 2與環套5 4相螺合且該 環套5 4係套設於第二螺桿5 1外周，因此，旋轉該握把 1 1，該第二螺桿5 1將朝向驅動部2移動，並帶動該感 應片移動相同的距離，繼而壓縮該彈性元件3 1，於本例 • 中，該彈性元件3 1係指一第一彈簧，而該磁條可感應到 該感應片的移動距離，藉由電性傳輸傳送至該顯示器，再 經該運算程式加以運算後，可將所設定之扭力值顯示於該 顯示器。 使用本發明扳動工件，該驅動部2會將施力經第一桿 2 1而頂撐該響輪4 1 1與頂撐塊4 1 2，並藉由該頂撐 塊4 1 2壓縮該第一彈簧，由於該感測片4 1 3位於該頂 撐塊4 1 2與第一彈簧之間，因此，該感測片4 1 3可隨 • 時測知第一彈簧的變形量，並將該變形量之訊號，藉由電 性傳輸傳送至該顯示器，再經該運算程式加以運算後，可 將所施加之扭力值顯示於該顯示器。 該運算程式主要與弧槽2 2直徑、第一彈簧之線徑及 第二螺桿5 1移動的距離有關，其動作原理為該第二螺桿 5 1移動對第一彈簧產生壓力，進而換算出所施加於工件 之扭力值，即利用距離、壓力及直徑間之特定關係，使該 顯示器内之運算程式加以運算，於本實施例中，當該第二 1298285 螺桿5 1之螺距、第一彈簧之線徑及該弧槽2 2直徑三者 相乘時，可以得到較高的精度。 其次，由於本發明係於該套管1内部設置感測裝置3 ，該感測裝置3與驅動部2之第一桿2 1相接觸並利用電 性連結而與該受信裝置55相連結，俾將所測知之扭力值 顯示於該裝設於套管1外周之顯示器，以達到方便讀取的 功用。 再者’本發明利用卡合部5 2與環套5 4間之螺合作 ® 用，當握把朝向驅動部2位移使而卡合部5 2與環套5 4 螺合時，該握把1 1則具有扭力設定的作用，反之，當卡 合部5 2與環套5 4分離時，該握把1 成一空轉的狀 態，藉此，使本發明具有確保扭力設定值不會被改變的功 用。 當然，本發明仍存在許多例子，其間僅細節上之變化 。研參閱第4圖，其係本發明之第二實施例，其中，該距 ⑩ 離量測組4 2 A係採用機械式量測，即於該套管1 a外周 叹有一置測用之刻度，利用該刻度可直接量測出第二螺桿 5 1 Α的移動距離，再以人工方式將該移動距離輸入受信 裝置5 5 A ’經運算程式計异後，亦可求得所設定之扭力 值。 以上所述實施例之揭示係用以說明本發明，並非用以 限制本發明，故舉凡數值之變更或等效元件之置換仍應隸 屬本發明之範_。 由以上詳細說明，可使熟知本項技藝者明暸本發明的 1298285 =達成μ述目的’實已符合專利法之規^，爰提出專利 曱請。 【圖式簡單說明】a driving portion, the driving portion is extended with a first rod, and the first gripping member 5 is disposed inside the sleeve, so that the driving portion is convexly-positioned and pivotally connected to the sleeve, and The first rod has an arc groove away from the adjacent end; the sensing device is mounted inside the sleeve and abuts the arc slot, and the sensing device is electrically connected to a receiving device. The above and other objects and advantages of the present invention will be readily understood from the following detailed description of the embodiments of the invention illustrated herein. The permissibility is different, but the selected embodiment is described in detail in the present specification, and its structure is shown in the drawing. ^ [Embodiment] Please refer to Fig. 1 to Fig. 4, The present invention is the structure of the embodiment selected for the present invention, and is for illustrative purposes only, and is not limited by such a structure in the patent application. The electronic torque wrench of the embodiment is as shown in Figures 1 to 3. 1298285' includes: a hollow sleeve 1 having a grip on the outer circumference thereof. h a driving portion 2, the driving portion 2 is extended with a first rod 2丄, and the first rod 2 1 is An end of the grip 丄i is mounted inside the sleeve i. The drive unit 2 protrudes from the end of the sleeve 1 and is pivotally connected to the sleeve, and is driven away from the first rod 21 One end of the portion 2 has an arc groove 2 2 Ο -... The sensing device 3 is mounted inside the sleeve 1 and abuts the arc groove 2 2 In this embodiment, the sensing device 3 includes a measuring unit 4, a setting unit 5, and an elastic element 3 1 between the measuring unit 4 and the setting unit 5. The measuring unit 4 is in this example. The twisting force measuring group 4 1 is composed of a distance measuring group 4 1 , and the twisting force measuring group 4 1 includes a ringing wheel 4 1 1 , a top supporting block 4 1 2 and a sensing piece 4 1 3. One side of the ring 4 1 1 corresponds to the arc slot 2 2 , and the other side is disposed in the top block 4 1 2 , and the top block 4 12 is different from one end of the ring 411 The sensing strip 4 1 3 is disposed, and the distance measuring group 4 2 is emitted by a receiver 4 2 1 disposed at the end of the casing 丄 away from the sensing piece 4 1 3 and an emitter corresponding to the receiver 4 In the embodiment, the receiver 42 is a magnetic strip and the transmitter 42 2 is a sensing piece, and the sensing piece and the elastic element 31 are away from one end of the sensing piece. The setting unit 5 includes a second screw $1 coupled to the sensing piece, an engaging portion 52, and a first elastic sleeve 5-1 and a sleeve 5 that are sequentially sleeved on the second screw 51. 'And the engaging portion 52 is displaced to the ring sleeve 5 4 The sensing piece 4 1 3 and the sensing 1298285 piece of the sensing device 3 are respectively electrically connected to a receiving device 5 5 . In this example, the receiving device 5 5 refers to an embedded The display of the calculation program. When the torque is set, the engaging portion 52 is slightly moved forward, and the engaging portion 52 is screwed with the ring sleeve 54. At this time, the sensing piece is located on the right side of the magnetic strip. Below the end surface, the engaging portion 52 is screwed with the ring sleeve 5 4 and the ring sleeve 54 is sleeved on the outer circumference of the second screw 51. Therefore, the grip 1 1 is rotated, and the second screw 5 1 is rotated. Moving toward the driving portion 2, and driving the sensing piece to move the same distance, and then compressing the elastic member 3 1, in this example, the elastic member 31 refers to a first spring, and the magnetic strip can sense The moving distance of the sensing piece is transmitted to the display by electrical transmission, and after being calculated by the calculation program, the set torque value can be displayed on the display. Using the present invention to pull the workpiece, the driving portion 2 will apply a force through the first rod 2 1 to support the ring 4 1 1 and the top block 4 1 2, and compress the rod 4 1 2 by the top block 4 1 2 The first spring, since the sensing piece 4 1 3 is located between the top block 4 1 2 and the first spring, the sensing piece 4 1 3 can detect the deformation amount of the first spring with time and The signal of the deformation amount is transmitted to the display by electrical transmission, and after being calculated by the operation program, the applied torque value can be displayed on the display. The calculation program is mainly related to the diameter of the arc groove 22, the wire diameter of the first spring, and the distance the second screw 51 moves. The principle of operation is that the second screw 51 moves to generate pressure on the first spring, thereby converting the applied The torque value of the workpiece, that is, the specific relationship between the distance, the pressure and the diameter, is used to calculate the operation program in the display. In this embodiment, when the second 1298285 screw 51 has a pitch and a line of the first spring, When the diameter is multiplied by the diameter of the arc groove 2 2, a higher precision can be obtained. Next, in the present invention, the sensing device 3 is disposed inside the sleeve 1, and the sensing device 3 is in contact with the first rod 21 of the driving portion 2 and is electrically connected to the receiving device 55. The measured torque value is displayed on the display mounted on the outer circumference of the sleeve 1 to achieve a convenient reading function. Furthermore, the present invention utilizes the screwing between the engaging portion 52 and the loop sleeve 5, and when the grip is displaced toward the driving portion 2 and the engaging portion 52 is screwed with the loop sleeve 5, the grip is 1 1 has the function of torque setting. Conversely, when the engaging portion 52 is separated from the ring sleeve 5 4 , the grip 1 is in an idling state, thereby enabling the present invention to ensure that the torque setting value is not changed. function. Of course, there are still many examples of the present invention with only minor changes in detail. Referring to FIG. 4, which is a second embodiment of the present invention, wherein the distance from the measurement group 4 2 A is measured by mechanical measurement, that is, the outer circumference of the sleeve 1 a is sighed with a scale for measurement. The scale can be used to directly measure the moving distance of the second screw 5 1 ,, and then manually input the moving distance into the receiving device 5 5 A 'after calculation, and the set torque value can also be obtained. . The above description of the embodiments is intended to be illustrative of the invention and is not intended to limit the scope of the invention. From the above detailed description, it will be apparent to those skilled in the art that the present invention has been made to comply with the provisions of the Patent Law. [Simple description of the map]
第1圖係本發明之外觀示意圖 第2圖係本發明之結構示意圖 第3圖係本發明感測裝置之結構示意圖 第4圖係本發明第二實施例之示意圖 第5圖係習用扭力扳手之剖面示意圖 【主要第==】電子式扭力扳手之剖 面示意圖 (習用部分）1 is a schematic view of the structure of the present invention. FIG. 3 is a schematic view showing the structure of the sensing device of the present invention. FIG. 4 is a schematic view showing a second embodiment of the present invention. FIG. Schematic diagram of the section [main ===] schematic diagram of the electronic torque wrench (customized part)
扭力扳手6 驅動部6 2 作動塊6 3 τ頁推桿6 5 扭力扳手7 驅動部7 2 作動塊7 3 τ貝撐塊7 5 握把7 7 滑移桿7 8 1 (本發明部分) 套管6 1 第一桿6 2 1 彈簧6 4 握把6 6 套管7 1 第二桿7 2 1 彈簧7 4 頂推桿7 6 扭力測知裝置7 8 套官1 握把1 1 驅動部2 第一桿2工 狐槽2 2 感測裝置3 1298285Torque wrench 6 drive part 6 2 actuating block 6 3 τ page push rod 6 5 torque wrench 7 drive part 7 2 actuating block 7 3 τ shelling block 7 5 grip 7 7 sliding rod 7 8 1 (part of the invention) Tube 6 1 first rod 6 2 1 spring 6 4 grip 6 6 sleeve 7 1 second rod 7 2 1 spring 7 4 push rod 7 6 torsion detecting device 7 8 sleeve 1 grip 1 1 drive 2 First rod 2 fox slot 2 2 sensing device 3 1298285
彈性元件3 1 量測單元4 扭力量測組4 1 響輪4 1 1 頂撐塊4 1 2 感測片4 1 3 距離量測組4 2 接收器4 2 1 發射器4 2 2 設定單元5 第二螺桿51 卡合部5 2 第一彈簧5 3 環套5 4 受信裝置5 5 套管1 A 距離量測組4 2 A 第二螺桿5 1 A 受信裝置5 5 A 12Elastic element 3 1 Measuring unit 4 Torsion force measuring group 4 1 Ring wheel 4 1 1 Top stay block 4 1 2 Sensing sheet 4 1 3 Distance measuring group 4 2 Receiver 4 2 1 Transmitter 4 2 2 Setting unit 5 Second screw 51 Engagement portion 5 2 First spring 5 3 Loop sleeve 5 4 Trust device 5 5 Sleeve 1 A Distance measurement group 4 2 A Second screw 5 1 A Trust device 5 5 A 12