201029811 六、發明說明： ' 【發明所屬之技術領域】 • 本發明是有關於一種手工具，且特別是有關於一種扳 手。 【先前技術】 請參考第la圖及第lb圖，其係繪示習知之精密螺栓 ❹ 之安裝方式示意圖。圖中，精密螺栓110與螺孔130之間 會設有一塾片，又稱華司（washer) 120，其目的係增加精密 螺栓110與螺孔130周邊接觸面積之磨擦力。在精密加工 之應用領域中，華司120受螺栓110緊迫壓合於螺孔130 時，華司120所承受的壓力大小與扭力程度係至關重要。 具體而言，華司120所承受的壓力以磅數為單位，係指螺 栓110向下咬合螺孔130的力量，而華司120所承受的扭 力則來自於螺栓110與華司120接觸面的壓合旋轉角度， ❿ 如第lb圖所示之45度。 若螺栓110咬合螺孔130的磅數不足，則栓鎖不牢； 若螺栓110咬合螺孔130的磅數太高，一則華司120會被 壓壞，二則栓鎖過度會造成金屬疲勞。而螺栓110若未於 華司120表面施加扭力，亦即螺栓110未於壓迫華司120 於一特定磅數後，再旋入一特定角度，則兩者僅僅抵觸壓 合，便容易產生鬆動，華司120無法發揮其增加摩擦力之 作用；但若螺栓110施加過度扭力於華司120表面，則華 司120易產生表面碎裂等損壞現象。因此，如何兼顧每一 201029811 個華司120所需之特定磅數與特定角度，係深為從業人員 ' 應用一般扳手栓鎖大量螺栓110時所苦惱。 【發明内容】 本發明之一技術態樣在於提供一種扳手，以解決習知 之扳手無法精確兼顧螺栓施加於螺孔之扭力，及螺栓與華 司表面之壓合旋轉角度的缺陷。 • 本發明之一實施方式提供一種板手，包括一板手本體 及——電子裝置。電子裝置設於扳手本體，且其包括一儲 存單元、一扭力偵測器、一角速度感測晶片及一警示裝 置。儲存單元係用以儲存一預設扭力值及一預設角度值， 扭力偵測器係用以偵測扳手本體所提供之一扭力。角速度 感測晶片係用以在扭力達到預設扭力值後，偵測扳手本體 所旋轉之一角度；而警示裝置則用以在角度達到預設角度 值時，發出一警示訊號。 本發明之另一技術態樣在於提供一種角度扭力警示 ® 方法，以解決習知之扳手無法精確兼顧螺栓施加於螺孔之 扭力，及螺栓與華司表面之壓合旋轉角度的缺陷。 本發明之一實施方式提供一種角度扭力警示方法，係 應用於一電子式扳手，其包括下列步驟：設定一預設扭力 值及一預設角度值。利用一扭力偵測器偵測電子式板手所 提供之一扭力。判斷扭力是否達到預設扭力值；並於扭力 達到預設扭力值後，啟動一角速度感測晶片。利用角速度 感測晶片偵測電子式板手所旋轉之一角度。以及，在角度 5 201029811 達到預設角度值時，發出一警示訊號。 【實施方式】 請參照第2圖，其係為本發明一實施方式之扳手之結 構不意圖。圖中’本實施方式之板手包括一板手本體200 及一電子裝置300。電子裝置300設於扳手本體200，且 包括一儲存單元400、一扭力偵測器500、一角速度感測 晶片600及一警示裝置700。儲存單元400係用以儲存一 預設扭力值410及一預設角度值420，預設扭力值410係 指扳手本體200所欲施以工作之螺栓與螺孔的適當咬合 扭力；而預設角度值420係指扳手本體200所欲施以工作 之螺栓與華司的接觸面之適當旋入角度。上述兩者皆規範 於各種廠牌型號之螺栓與華司的使用說明書中。使用者可 於應用本實施方式之扳手栓鎖特定螺栓與華司時，先行將 此特定螺栓與華司之規格需求輸入儲存單元400以作為 預設扭力值410與預設角度值420。 扭力偵測器500係用以偵測扳手本體200所提供之一 扭力，亦即扳手本體200栓鎖螺栓於螺孔時所施加的扭 力。扭力偵測器500會將所測得之扭力以電壓的形式傳送 到警示裝置700，當警示裝置700發現扭力達到預設扭力 值410時，便啟動角速度感測晶片600來偵測扳手本體 200進一步旋轉的角度。換句話說，角速度感測晶片600 係用以在扭力達到預設扭力值410後，偵測扳手本體200 所旋轉之一角度。而警示裝置700則用以在角度也達到預 201029811 設角度值420時，發出一警示訊號以提醒使用者。其中， • 警示裝置700更包括一微處理器710以處理上述之程序。 . 具體而言，請繼續參考第3圖，其係為本實施方式之 電子裝置之功能方塊圖。圖中，微處理器710包括一比較 單元720、一轉換單元730及一計算單元740。當比較單 元720發現扭力偵測器500所提供之扭力510達到預設扭 力值410時，便發出一觸發訊號710給角速度感測晶片 600,以觸發角速度感測晶片600。而角速度感測晶片600 ® 則於收到觸發訊號710後，開始感測扳手本體200的角速 度，並將角速度以電壓的形式呈現，進而輸出一類比電壓 610給轉換單元730。換句話說，角速度感測晶片600内 部包括一迴轉儀與一類比電壓輸出器。迴轉儀用以偵測扳 手本體200所旋轉之角速度，而類比電壓輸出器則用以在 收到觸發訊號後，根據上述角速度，輸出一類比電壓610。 轉換單元730將類比電壓610轉換為一角度值731 並傳輸給計算單元740 ;最後，計算單元740再累積計算 ❿一時間區間内之角度值731，以取得扳手本體200在栓鎖 螺栓到達一定磅數後，進一步旋入的角度。最後，當警示 裝置700偵測到上述角度已達到預設角度值420後，便產 .生一警示訊號，來通知使用者停止操作本實施方式之扳 手。藉此，本實施方式之扳手可以精準將螺栓鎖入螺孔於 一定磅數，而且精準控制螺栓與華司接觸面的旋入角度。 請繼續參考第4圖，其係為本實施方式之電子裝置之 詳細功能方塊圖。圖中，電子裝置300更包括一使用者介 201029811 面裝置800，以供使用者進行資訊操作。具體而言，使用 - 者介面裝置800包括一通用串列匯流排（universal serial bus，USB)、一顯示螢幕810及一輸入裝置。使用者可透過 輸入裝置來存取預設扭力值410及預設角度值420，更可 利用通用串列匯流排來讓電子裝置3〇〇與外部之電子設 備相連結，進而更新預設扭力值410及預設角度值420。 •同理，使用者亦可利用顯示螢幕810來進一步了解扳手本 體200工作當下之扭力、角度、預設扭力值410及預設角 ❹度值420等資訊。更進一步的說，警示裝置71〇更包括一 警示燈75〇及一喇叭760。警示燈750與喇叭760則根據 警示裝置710所提供之警示訊號711來發出閃爍燈光及警 示音。最後，儲存單元400則可為一電子可抹除可程式化 唯讀記憶體（electrically erasable programmable read only memory，EEPROM)，當然亦可採用隨機存取記憶體 (random access memory, RAM)等相應替代之設備來實現 之0 ❹ 請參考第5圖’其係為本發明一實施例之扭力摘測器 之結構示意圖。圖中，扭力偵測器500可為一應變規’其 具體實做方式可採用DaJing公司型號BKF350-1EB之應 變規(strain gauge)來實現之。此應變規係於橋式結構的兩 端，各輸出一順向電壓訊號及一反向電壓訊號，以代表扳 手本體200之旋轉方向；並以順向電壓訊號與反向電壓訊 號的電壓差，亦即扭力電壓值，來代表扭力之大小。舉例 而言，應變規係於接收一順時鐘扭力時輸出一順向電壓訊 201029811 號，且於接收一逆時鐘扭力時輸出一反向電壓訊號。 請參考第6圖，其係為本發明另一實施例之角速度感 測晶片之結構示意圖。圖中，角速度感測晶片600可利用 InvenSense公司型號IDG-1004之迴轉儀角速度债測晶片 來實現之。值得注意的是，迴轉儀角速度偵測晶片係利用 輸出針腳（pin)601來輸出類比電壓610給微處理器710, 而且此型號之迴轉儀角速度偵測晶片的輸出電壓值係為 每4mV對應每秒一度的角度變化量。此外，角速度感測 • 晶片600之啟動係受控於開關602，而開關602之閘極則 連接比較單元720。 請參考第7圖，其係為本發明另一實施例之微處理器 之結構示意圖。圖中，微處理器710可利用Texas Instruments公司型號MSP430-F427之單晶片來實現之。 值得注意的是，前述類比電壓610可經由配套電路輸入端 701饋入微處理器710内部的比較單元720 ;而且微處理 器710係由準位電壓點702取得參考電壓，微處理器710 ⑩再以參考電壓跟類比電壓610來產生差動電壓值，微處理 器710内部的轉換單元730與計算單元740便利用差動電 壓值與一時間差值來計算出實際的角位移量，亦即扳手本 體200在將螺栓鎖入螺孔於一定磅數後，進一步將螺栓旋 入華司的角度。上述時間差值係微處理器710在透過輸出 針腳703輸出觸發訊號721給角速度感測晶片600後，啟 動微處理器710内建之計時單元，例如石英震盪器，來取 得。 201029811 最後，請參考第8圖，其係繪示本發明一實施方式之 角度扭力警示方法之步驟流程圖。本實施方式之角度扭力 警示方法，係應用於一電子式扳手，其包括下列步驟：首 先，如步驟910所示，設定一預設扭力值及一預設角度 值。然後，如步驟920所示，利用一扭力偵測器偵測電子 式板手所提供之一扭力。接下來，如步驟930所示，判斷 扭力是否達到預設扭力值；若是，則如步驟940所示，啟 動一角速度感測晶片。然後，如步驟950所示，利用角速 ❿度感測晶片偵測電子式板手所旋轉之一角度。最後，如步 驟960所示，在角度達到預設角度值時，發出一警示訊號。 雖然本發明已以實施方式揭露如上，然其‘並非用以限定 本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍 内，當可作各種之更動與潤飾，因此本發明之保護範圍當視 後附之申請專利範圍所界定者為準。 【圖式簡單說明】 ® 第la圖與第lb圖係為習知之精密螺栓之安裝方式示 意圖。 第2圖係為本發明一實施方式之扳手之結構示意圖。 第3圖係繪示第2圖之電子裝置之功能方塊圖。 第4圖係繪示第3圖之電子裝置之詳細功能方塊圖。 第5圖係為本發明一實施例之扭力偵測器之結構示 意圖。 第6圖係為本發明另一實施例之角速度感測晶片之 201029811 結構示意圖。 第7圖係為本發明另一實施例之微處理器之結構示 . 意圖。 第8圖係為本發明一實施方式之角度扭力警示方法 之步驟流程圖。 【主要元件符號說明】 _ 110 :螺栓 701 :輸入端201029811 VI. Description of the invention: 'Technical field to which the invention pertains» The present invention relates to a hand tool, and in particular to a wrench. [Prior Art] Please refer to the drawings la and lb, which are schematic diagrams showing the installation of the conventional precision bolts 。. In the figure, a cymbal piece, also referred to as a washer 120, is disposed between the precision bolt 110 and the screw hole 130, and the purpose thereof is to increase the frictional force of the contact area between the precision bolt 110 and the screw hole 130. In the field of precision machining, when the washer 120 is pressed against the screw hole 130 by the bolt 110, the pressure and the degree of torque of the washer 120 are essential. Specifically, the pressure of the washer 120 is measured in pounds, which means that the bolt 110 bites the force of the screw hole 130 downward, and the torque of the washer 120 is derived from the contact surface of the bolt 110 with the washer 120. Press the rotation angle, 45 45 degrees as shown in Figure lb. If the number of pounds of the bolt 110 engaging the screw hole 130 is insufficient, the latch is not strong; if the bolt 110 is too high in the pinhole 130, one washer 120 will be crushed, and the second latch will cause metal fatigue. If the bolt 110 does not exert a torsion force on the surface of the washer 120, that is, the bolt 110 is not pressed against the specific size of the washer 120 and then screwed into a specific angle, the two are only resistant to loosening after being pressed against the press. Huasi 120 can not play its role of increasing friction; however, if the bolt 110 exerts excessive torque on the surface of the Huasi 120, the Huasi 120 is prone to damage such as surface cracking. Therefore, how to balance the specific number of pounds and specific angles required for each of the 201029811 Huasi 120 is deeply troubled by practitioners who use the general wrench to lock a large number of bolts 110. SUMMARY OF THE INVENTION One aspect of the present invention provides a wrench for solving the problem that the conventional wrench cannot accurately balance the torque applied by the bolt to the screw hole and the angle of rotation of the bolt to the surface of the company. An embodiment of the present invention provides a wrench comprising a wrench body and an electronic device. The electronic device is disposed on the wrench body and includes a storage unit, a torsion detector, an angular velocity sensing chip and a warning device. The storage unit is configured to store a preset torque value and a preset angle value, and the torque detector is configured to detect a torque provided by the wrench body. The angular velocity sensing chip is used to detect an angle of rotation of the wrench body after the torque reaches a preset torque value, and the warning device is configured to emit a warning signal when the angle reaches a preset angle value. Another aspect of the present invention is to provide an Angle Torque Warning ® method for solving the problem that the conventional wrench cannot accurately balance the torque applied by the bolt to the screw hole and the angle of rotation of the bolt to the surface of the washer. An embodiment of the present invention provides an angle torque warning method for an electronic wrench, which includes the steps of: setting a preset torque value and a preset angle value. A torque detector is used to detect one of the torque provided by the electronic wrench. Determine whether the torque reaches the preset torque value; and after the torque reaches the preset torque value, activate the angular velocity sensing wafer. The angular velocity sensing wafer is used to detect an angle of rotation of the electronic wrench. And, when the angle 5 201029811 reaches the preset angle value, a warning signal is issued. [Embodiment] Please refer to Fig. 2, which is a schematic view of the structure of a wrench according to an embodiment of the present invention. In the figure, the wrench of the present embodiment includes a wrench body 200 and an electronic device 300. The electronic device 300 is disposed on the wrench body 200 and includes a storage unit 400, a torsion detector 500, an angular velocity sensing chip 600, and a warning device 700. The storage unit 400 is configured to store a preset torque value 410 and a preset angle value 420. The preset torque value 410 refers to an appropriate bite torque of the bolt and the screw hole to be applied by the wrench body 200; and the preset angle The value 420 is the proper screwing angle of the contact surface of the bolt and the washer to which the wrench body 200 is to be applied. Both of these are specified in the bolts of various brand models and the instruction manual of the company. When the user applies the wrench bolt of the embodiment to lock the specific bolt and the washer, the specification and the specification of the specific bolt and the washer are first input into the storage unit 400 as the preset torque value 410 and the preset angle value 420. The torque detector 500 is used to detect one of the torsion forces provided by the wrench body 200, that is, the torque applied by the wrench body 200 when the bolt is bolted to the screw hole. The torque detector 500 transmits the measured torque to the warning device 700 in the form of a voltage. When the warning device 700 finds that the torque reaches the preset torque value 410, the angular velocity sensing wafer 600 is activated to detect the wrench body 200 further. The angle of rotation. In other words, the angular velocity sensing wafer 600 is configured to detect an angle at which the wrench body 200 is rotated after the torque reaches a predetermined torque value 410. The warning device 700 is used to send a warning signal to remind the user when the angle is also up to the pre-201029811 angle value 420. Wherein, the alert device 700 further includes a microprocessor 710 to process the above described program. Specifically, please refer to FIG. 3, which is a functional block diagram of the electronic device of the present embodiment. In the figure, the microprocessor 710 includes a comparison unit 720, a conversion unit 730 and a calculation unit 740. When the comparing unit 720 finds that the torque 510 provided by the torque detector 500 reaches the preset torque value 410, a trigger signal 710 is sent to the angular velocity sensing wafer 600 to trigger the angular velocity sensing wafer 600. The angular velocity sensing wafer 600 ® starts to sense the angular velocity of the wrench body 200 after receiving the trigger signal 710 , and presents the angular velocity as a voltage, thereby outputting a analog voltage 610 to the conversion unit 730 . In other words, the interior of the angular velocity sensing wafer 600 includes a gyroscope and an analog voltage output. The gyroscope is used to detect the angular velocity at which the wrench body 200 rotates, and the analog voltage output device is configured to output a analog voltage 610 according to the angular velocity after receiving the trigger signal. The conversion unit 730 converts the analog voltage 610 into an angle value 731 and transmits it to the calculation unit 740. Finally, the calculation unit 740 re-accumulates the angle value 731 in the first time interval to obtain the wrench body 200 at the latch bolt reaching a certain pound. After the number, further screw in the angle. Finally, when the warning device 700 detects that the angle has reached the preset angle value 420, a warning signal is generated to notify the user to stop operating the wrench of the embodiment. Thereby, the wrench of the embodiment can accurately lock the bolt into the screw hole in a certain number of pounds, and precisely control the screwing angle of the bolt to the contact surface of the washer. Please refer to FIG. 4, which is a detailed functional block diagram of the electronic device of the present embodiment. In the figure, the electronic device 300 further includes a user interface 201029811 device 800 for the user to perform information operations. Specifically, the user interface device 800 includes a universal serial bus (USB), a display screen 810, and an input device. The user can access the preset torque value 410 and the preset angle value 420 through the input device, and the universal serial bus bar can be used to connect the electronic device 3 to the external electronic device to update the preset torque value. 410 and a preset angle value of 420. • Similarly, the user can also use the display screen 810 to further understand the torque, angle, preset torque value 410, and preset angle 420 value of the wrench body 200. Further, the warning device 71 further includes a warning light 75A and a speaker 760. The warning light 750 and the horn 760 emit flashing lights and warning sounds according to the warning signal 711 provided by the warning device 710. Finally, the storage unit 400 can be an electrically erasable programmable read only memory (EEPROM), and of course, a random access memory (RAM) can be used instead. The device is implemented as 0. Please refer to FIG. 5, which is a schematic structural view of a torque extractor according to an embodiment of the present invention. In the figure, the torque detector 500 can be a strain gauge. The specific implementation can be implemented by using a strain gauge of the DaJing model BKF350-1EB. The strain gauge is connected to the two ends of the bridge structure, each of which outputs a forward voltage signal and a reverse voltage signal to represent the direction of rotation of the wrench body 200; and the voltage difference between the forward voltage signal and the reverse voltage signal. That is, the value of the torque voltage, which represents the magnitude of the torque. For example, the strain gauge outputs a forward voltage signal 201029811 when receiving a clockwise torque, and outputs a reverse voltage signal when receiving a counterclockwise torque. Please refer to Fig. 6, which is a schematic structural view of an angular velocity sensing wafer according to another embodiment of the present invention. In the figure, the angular velocity sensing wafer 600 can be implemented using a gyro angular velocity debt chip of InvenSense Corporation Model IDG-1004. It should be noted that the gyroscope angular velocity detecting chip uses the output pin (pin) 601 to output the analog voltage 610 to the microprocessor 710, and the output voltage value of the gyroscope angular velocity detecting chip of this model is every 4 mV corresponding. The amount of angular change in seconds. In addition, angular velocity sensing • The activation of wafer 600 is controlled by switch 602, while the gate of switch 602 is coupled to comparison unit 720. Please refer to FIG. 7, which is a schematic structural diagram of a microprocessor according to another embodiment of the present invention. In the figure, the microprocessor 710 can be implemented using a single wafer of Texas Instruments Model MSP430-F427. It should be noted that the analog voltage 610 can be fed into the comparison unit 720 inside the microprocessor 710 via the matching circuit input terminal 701; and the microprocessor 710 obtains the reference voltage from the level voltage point 702, and the microprocessor 710 10 The reference voltage and the analog voltage 610 generate a differential voltage value, and the conversion unit 730 and the calculation unit 740 inside the microprocessor 710 conveniently calculate the actual angular displacement amount by using the differential voltage value and a time difference, that is, the wrench body. 200 After locking the bolt into the screw hole for a certain number of pounds, further screw the bolt into the angle of the washer. The time difference is obtained by the microprocessor 710 after the output signal pin 721 is outputted to the angular velocity sensing chip 600 through the output pin 703, and the built-in timing unit of the microprocessor 710, such as a quartz oscillator, is obtained. Finally, please refer to FIG. 8 , which is a flow chart showing the steps of the angle torque warning method according to an embodiment of the present invention. The angle torque warning method of the present embodiment is applied to an electronic wrench, which includes the following steps: First, as shown in step 910, a preset torque value and a preset angle value are set. Then, as shown in step 920, a torque detector is used to detect one of the torques provided by the electronic wrench. Next, as shown in step 930, it is determined whether the torque reaches a preset torque value; if so, as shown in step 940, an angular velocity sensing wafer is activated. Then, as shown in step 950, the wafer is used to detect an angle at which the electronic wrench is rotated by the angular velocity sensing. Finally, as shown in step 960, a warning signal is issued when the angle reaches a preset angle value. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and the present invention can be modified and retouched without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application attached. [Simple description of the drawing] ® The first and lbth drawings are schematic diagrams of the installation of conventional precision bolts. 2 is a schematic structural view of a wrench according to an embodiment of the present invention. Figure 3 is a functional block diagram of the electronic device of Figure 2. Figure 4 is a block diagram showing the detailed function of the electronic device of Figure 3. Fig. 5 is a schematic view showing the structure of a torsion detector according to an embodiment of the present invention. Figure 6 is a schematic view showing the structure of an angular velocity sensing wafer of 201029811 according to another embodiment of the present invention. Figure 7 is a block diagram showing the structure of a microprocessor according to another embodiment of the present invention. Figure 8 is a flow chart showing the steps of the angle torque warning method according to an embodiment of the present invention. [Main component symbol description] _ 110 : Bolt 701 : Input
600 :角速度感測晶片 120 :華司 130 :螺孔 200 :扳手本體 300 :電子裝置 400 :儲存單元 410 :預設扭力值 420 :預設角度值 500 :扭力偵測器 702 :準位電壓點 703 :輸出針腳 710 ··微處理器 711 :警示訊號 720 :比較單元 721 :觸發訊號 730 :轉換單元 731 :角度值 740 :計算單元 750 :警示燈 601 :輸出針腳 602 :開關 760 I 嗦！1 Ά 800 :使用者介面裝置 610 :類比電壓 700 ··警示裝置 810 :顯示螢幕 910〜960 :步驟 11600: angular velocity sensing wafer 120: washer 130: screw hole 200: wrench body 300: electronic device 400: storage unit 410: preset torque value 420: preset angle value 500: torque detector 702: level voltage point 703: output pin 710 · microprocessor 711: warning signal 720: comparison unit 721: trigger signal 730: conversion unit 731: angle value 740: calculation unit 750: warning light 601: output pin 602: switch 760 I 嗦! 1 Ά 800 : User interface device 610 : Analog voltage 700 · Warning device 810 : Display screen 910 to 960 : Step 11