201121723 六、發明說明： f發明所屬之技術領域】 本揭不内容是有關於一種扭力扳手，且特別是有關 於一種具有重力感測器的扭力扳手。 【先前技術】 清參考第1圖’其係習知之扭力扳手的操作示意 圖。第1圖中’使用者在利用扭力扳手1〇〇旋緊一螺 帽200時，會將扭力扳手1〇〇與螺帽2〇〇卡合；其中， 扭力扳手100會計算螺帽200所被施加的扭力及旋轉 角，。然而，在實際操作上，使用者經常發現螺帽 的旋轉角度並未被扭力扳手議精準的測量出來 不知其緣由。 【發明内容】201121723 VI. Description of the invention: Technical field to which the invention belongs. The present disclosure relates to a torque wrench, and more particularly to a torque wrench having a gravity sensor. [Prior Art] Refer to Fig. 1 for a schematic diagram of the operation of a conventional torque wrench. In the first figure, when the user tightens a nut 200 by using a torque wrench 1 , the torque wrench 1 〇〇 is engaged with the nut 2 ;; wherein the torque wrench 100 calculates the nut 200 Torque and rotation angle applied. However, in practice, the user often finds that the angle of rotation of the nut is not accurately measured by the torque wrench. [Summary of the Invention]
、t揭示内容之一技術態樣是在提供一種具有重力 感測器的扭力扳手，其係利用重力感測器修正扭力板 手對於角度之測量。 本揭示内谷之另一技術態樣是在提供一種旋 度精確計算方法，其可彌補人為操作的誤差。 依據本揭示内容一實施方式，提出一種且 感力扳手，包括一扳手本體、一扭力感測器、 角度感測器、一重力感測器及一處理單元。扳手本 4 [S] 201121723 體係用以施加-扭力於—工作件’扭力感測器係用以 感測扭力是否大於-預設扭力值；角度感測器係用以 於扭力大於預設扭力值時，感測扳手本體之一旋轉角 度，以產生一角度值。重力感測器係用以感測扳手本 體之一傾斜角度，處理單元係用以根據傾斜角度修正 角度值以產生一精碟角度值。 依據本揭示内容另一實施方式，提出一種旋轉角 度精確計算方法’係制於—扭力扳手。旋轉角度精 確計算方法包括下列步驟：利用一角度感測器計算扭 力扳手於一起始時間後之旋轉角度，以產生一角度 值。利用一重力感測器感測扭力扳手旋轉時之一傾斜 角度。以及，利用傾斜角度修正角度值。 藉此本實施方式之具有重力感測器的扭力扳手 及其旋轉角度精確計算方法可以彌補人為操作誤差， 進而精準測量工作件被旋轉的角度。 【實施方式】 本發明人基於多年實務經驗及長期努力，找出習 知之扭力扳手測量旋轉角度時難以精確的原因如下： 請參考第2A圖與第2B圖，其係繪示習知之扭力 扳手的操作示意圖。第2A圖與第2B圖中，一般人在 卡合扭力扳手1〇〇與螺帽2〇〇時，不會特意顧慮到以 水平角度進行卡合；因而使扭力扳手100的側面平面 與螺帽200頂部平面在x_z平面上出現偏移。換句話 201121723 說，扭力扳手100會朝上或朝下偏離螺帽200頂部平 面的水平線。而此一偏移的狀態，會使得螺帽2〇〇中 心點到扭力扳手100上角度感測器的距離發生改變； 因此’當使用者旋轉扭力扳手100時，半徑上的誤差 會k成圓周距離上的誤差，而使角度感測器所量 數值產生誤差。 ' 請一併參考第2C圖與第2D圖，其係繪示習知之 =力扳手的操作示意圖。另外兩種實際人為操作的型 第2C圖與第2D圖所示，扭力扳手1〇〇的侧面 2面，、螺帽200頂部平面非餘χ_ζ平面上出現 移’在y_z平面上亦出現偏移。 請繼續參考第3A圖與第3B圖，其係繪示習知 人的操作Μ圖。承上所述，在實際操作上， 、手…、法如機器一般穩定而準確。因此，如 用者欲以扭力扳手⑽旋轉螺帽_- 無法維持扭力扳手刚與螺帽_ 角二Τί 換句話說，使用者在旋轉第- 丹度αΐ時’是以--^人 第二角度α2時，卻是以°另二為二，而使用者在旋轉 α1 + α2。 部疋以另一卡合角度為之，其中α = 具體而言，如第上 角度心時，扭力板手^當使用者在旋轉第一 2:::九 而當使用者在旋轉第二角产α & 1〇0的側面平面與螺帽200頂部；面 201121723 γ能失角為0 2。這種情況特別容易發生在使用者隨著 旋轉角度變化，而輕微扭動手腕時。因此，目前市面 上各種扭力扳手都無法彌補人為誤差所造成的量測不 精準問題。 相同的問題，也會發生在套筒式扭力扳手上。請 併參考第4A圖、第4B圖及第4C圖，其係繪示習 知之套筒式扭力扳手的操作示意圖。雖然扭力扳手1〇〇 的工作部1〇1水平卡合於螺帽200，但扭力扳手1〇〇 =握柄102可能傾斜一不特定角度々。倘若角度感測 器被裝設在工作部101，則此一傾斜較不會造成測量 上的誤差；但若角度感測器被裝設在握柄1〇2，則此 「傾斜便會造成測量上的誤差。可惜的是，將角度感 测器裝设在工作部1〇1需要考慮應力及電路體積等因 素°又6十自由度極小，因而衍生額外費用。因此，本 發月人殫精竭慮’探究上述各種造成角度測量誤差的 原因，提出解決之道如下列諸實施方式。 請繼續參考第5圖，第5圖是本揭示内容一實施 方式之具有重力感測器的扭力扳手3〇〇的功能方塊 圖第5圖中，本實施方式提出一種具有重力感測器 的扭力扳手300，包括一扳手本體31〇及一電路裝置 3_20。其中，電路裝置32〇至少包括一扭力感測器 一角度感測器322、一重力感測器323及一處理單元 324。扳手本體31 〇係用以施加一扭力於一工作件（例 如螺帽）’扭力感測器321係用以感測扭力是否大於一 201121723 預設扭力值；角度感測器322係用以於扭力大於預設 扭力值時’感測扳手本體310之一旋轉角度，以產生 —角度值。重力感測器323係用以感測扳手本體310 之一傾斜角度’處理單元324係用以根據傾斜角度修 正角度值以產生一精確角度值。藉此，本實施方式可 以彌補人為操作誤差’進而精準測量工作件被旋轉的 角度。 具體而言’以第3B圖為例’使用者可能在轉完第 角度α 1後’放鬆施力，此時因扭力感測器321察 覺扭力低於一預設扭力值，則通知角度感測器322不 累计角度值。待使用者繼續施加大於預設扭力值之扭 力時’角度感測器322始繼續累計扳手本體31〇之轉 =角度，亦即等同於螺帽200被旋轉的角度。值得注 意的是，重力感測器323會偵測出夾角0 1與夾角0 2 的變化量，並藉以修正第二角度α2的實測值，進而 彌補人為操作誤差。 請再參考第6圖，第6圖是第5圖之詳細功能方 鬼圖第6圖中，具有重力感測器的扭力扳手3〇〇更 包括一顯示單元，以顯示包括精確角度值在内的各種 訊息。具體而言，顯示單元可包括螢幕325、警示燈 326與蜂鳴器327。另外，具有重力感測器的扭力扳手 3〇〇亦可包括一儲存單元328以儲存各種資料，例如 =扭力值及精讀角度值等H具有重力感測器 的扭力扳手3GG亦可包括-資料傳輸介面329以有線 201121723 或無線傳輸上述各資料》最後，具有重力感測器的扭 力扳手300更可提供一簡易的操作介面330,以供使 用者輸入指令或數據。 請參考第7 A圖，第7 A圖係繪示一實施例之陀螺 儀晶片的電路圖。具體而言，角度感測器通常為一陀 螺儀，可咨利用的晶片型號有ST系列的LY503ALH、 LY510ALH、LPR510AL、LPY510AL、LY5150ALH 及 LPY5150AL等，以及ADI系列的ADXRS610與 ADXRS613晶片。其中，陀螺儀晶片的輸出訊號係由 接點401傳遞到前述處理單元324。 請參考第7B圖，第7B圖係繪示一實施例之重力 感測器的電路圖。具體而言，重力感測器（G-sensor) 可選用的晶片型號有ST系列的LIS202DL、 LIS244AL、LIS331AL、LIS344AL、LIS344ALH 及 LIS3V02DL 等，以及 ADI 系列的 ADXL325、 ADXL326、ADXL335、ADXL345、ADXL103 及 ADXL203等。其中，重力感測器的輸出訊號係由接點 402傳遞到前述處理單元324。 請參考第7C圖，第7A圖係繪示一實施例之處理 單元的電路圖。以晶片型號MSP430-F427的微處理晶 片為例，MSP430-F427晶片係以接點403接收陀螺儀 的訊號，亦即訊號連接接點401 ;以接點404接收重 力感測器的訊號，亦即訊號連接接點402 ;再以接點 405及接點406接收扭力感測器的訊號。 201121723 接下來，請參考第8 實施方式之旋鏟&14£圆第8圖疋本揭不内容一 8圖中，本實 又精確計算方法的步驟流程圖。第 用於-扭力扳彳 <之》疋轉角度精確計算方法，係應 驟:首先二二=精確計算方法包括下列步 扭力扳手於-起始時間後:旋二角U 值。然後，如步驟5，Λ =疋轉角度以產生-角度 扭力扳手旋轉時之—傾：磨利：一f力感測器感測 ^ , 貝斜角度。接下來，如步驟530 所不，利用傾斜角度修正角度值。 ㈣ 驟、參考第9圖9圖是第8圖之詳細步 第9圖中，本實施方式之旋轉角度精確計 —/更可具體區分為七個步驟：首先，如步驟㈣ 所不’先執行扭力量測功能，量測扭力扳手施加於一 工!!件之扭力值。然後’如步驟620所示，利用-處 理單元或一比較器確認扭力值是否大於一預設扭力 值。接下來，如步驟630所示，當扭力值大於預設扭 力值時，執行角度量測功能，以計算扭力扳手本體旋 轉的角度來代表工作件被旋轉的角度。與此同時，如 步驟640所示，利用角度感測器偵測扭力扳手本體是 否在旋轉過程中’發生傾斜及傾斜角度幾何。然後， 如步驟650所示’計算發生傾斜時，傾斜角度對旋轉 角度所造成之誤差。接下來，如步驟660所示，根據 角度感測器所提供之數值修正旋轉角度值，以產生精 確角度值。最後，如步驟670所示，提供精確角度值 201121723 予使用者。 雖然本發明已以諸實施方式揭露如上，然其並非 用以限定本發明，任何熟習此技藝者’在不脫^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】 為讓本揭示内容之上述和其他目的、特徵、優點與 實施例能更明顯易懂，所附圖式之說明如下： 第1圖〜第3Β圖是習知之扭力扳手的操作示意圖。 第4Α圖〜第4C圖是習知之套筒式扭力扳手的操作 不意圖。 第5圖是本揭示内容一實施方式之具有重力感測器 的扭力扳手的功能方塊圖。 第6圖是第5圖之詳細功能方塊圖。 第7Α圖是本揭示内容一實施例之陀螺儀晶片的電 路圖。 第7Β圖是本揭示内容一實施例之重力感測器的電 路圖。 第7C圖是本揭示内容一實施例之處理單元的電路 圖0 201121723 第8圖是本揭示内容一實施方式之旋轉角度精確計 算方法的步驟流程圖。 第9圖是第8圖之詳細步驟流程圖。 【主要元件符號說明】 100 :扭力扳手 101 :工作部 102 :握柄 200 :螺帽 300 :具有重力感測器的扭310 :扳手本體 力板手 321 :扭力感測器 323 :重力感測器 325 :螢幕 327 :蜂鳴器 329 :資料傳輸介面 401〜406 :接點 • 320 :電路裝置 322 :角度感測器 324 :處理單元 326 :警示燈 328 :儲存單元 330 :操作介面 510〜670 :步驟 E S1 12One of the technical aspects of the disclosure is to provide a torque wrench with a gravity sensor that uses a gravity sensor to correct the measurement of the angle of the torsion wrench. Another technical aspect of the present disclosure is to provide an accurate calculation of the curl that compensates for errors in human operation. According to an embodiment of the present disclosure, an inductive wrench is provided, including a wrench body, a torsion sensor, an angle sensor, a gravity sensor, and a processing unit. Wrench 4 [S] 201121723 system for applying - torque - working piece 'torque sensor is used to sense whether the torque is greater than - preset torque value; angle sensor is used to torque greater than the preset torque value At the time, one of the wrench bodies is rotated to generate an angle value. The gravity sensor is used to sense the tilt angle of the wrench body, and the processing unit is configured to correct the angle value according to the tilt angle to generate a fine disc angle value. According to another embodiment of the present disclosure, an accurate calculation method of the rotation angle is proposed to be attached to a torque wrench. The precise calculation method of the rotation angle includes the following steps: using an angle sensor to calculate the rotation angle of the torque wrench after a start time to generate an angle value. A gravity sensor senses one of the tilt angles when the torque wrench is rotated. And, the angle value is corrected by the tilt angle. Therefore, the torque wrench with the gravity sensor of the present embodiment and the accurate calculation method of the rotation angle can compensate for the human error, and then accurately measure the angle at which the workpiece is rotated. [Embodiment] Based on years of practical experience and long-term efforts, the inventors have found out that the reason why the conventional torque wrench is difficult to measure when measuring the rotation angle is as follows: Please refer to FIGS. 2A and 2B, which are diagrams showing a conventional torque wrench. Operation diagram. In FIGS. 2A and 2B , when the torque wrench 1 〇〇 and the nut 2 卡 are engaged, the average person does not intentionally engage in the horizontal angle; thus, the side plane of the torque wrench 100 and the nut 200 are made. The top plane appears offset on the x_z plane. In other words, 201121723, the torque wrench 100 will be offset upwards or downwards from the horizontal plane of the top surface of the nut 200. The state of the offset causes the distance between the center point of the nut 2 and the angle sensor on the torque wrench 100 to change; therefore, when the user rotates the torque wrench 100, the error in the radius becomes k. The error in the distance causes the value of the angle sensor to produce an error. Please refer to the 2C and 2D drawings together, which is a schematic diagram of the operation of the conventional force wrench. In the other two types of actual human operation, the 2C and 2D drawings, the side surface 2 of the torque wrench 1 ,, the top plane of the nut 200 is not χ χ ζ 出现 ζ ' ' ' ' ' 亦 亦 亦 亦 亦 亦 亦 亦 亦. Please refer to FIGS. 3A and 3B for a diagram of the operation of the conventional person. According to the above, in actual operation, the hand, the law, such as the machine is generally stable and accurate. Therefore, if the user wants to rotate the nut with a torque wrench (10) _- can not maintain the torque wrench just with the nut _ angle two Τ ί, in other words, the user is rotating the first - dan ΐ α ' ' When the angle α2 is equal to two, the user is rotating α1 + α2. The 疋 is in another angle of engagement, where α = specifically, such as the upper angle of the heart, the torsion wrench ^ when the user is rotating the first 2::: nine while the user is rotating the second corner The side plane of α & 1〇0 is the top of the nut 200; the surface of the 201121723 γ can be 0 2 . This situation is particularly prone to occur when the user slightly twists the wrist as the angle of rotation changes. Therefore, various torque wrenches currently on the market cannot compensate for the inaccuracy of measurement caused by human error. The same problem can also occur with a sleeve type torque wrench. Please refer to FIG. 4A, FIG. 4B and FIG. 4C, which are schematic diagrams showing the operation of a conventional sleeve type torque wrench. Although the working portion 1〇1 of the torque wrench 1〇〇 is horizontally engaged with the nut 200, the torque wrench 1〇〇=the grip 102 may be inclined by an unspecified angle 々. If the angle sensor is installed in the working portion 101, the tilt is less likely to cause a measurement error; but if the angle sensor is mounted on the handle 1〇2, the tilt will cause measurement. The error is unfortunately, the installation of the angle sensor in the working part 1〇1 needs to consider factors such as stress and circuit volume, and the 60 degrees of freedom is extremely small, thus generating extra costs. Therefore, this month’s people are exhausted to 'explore The above various causes of the angle measurement error are proposed as follows. Please continue to refer to FIG. 5, which is a function of a torque wrench 3〇〇 with a gravity sensor according to an embodiment of the present disclosure. In the fifth embodiment of the block diagram, the present embodiment provides a torque wrench 300 having a gravity sensor, comprising a wrench body 31 and a circuit device 3-20. The circuit device 32 includes at least one torque sensor. The detector 322, a gravity sensor 323 and a processing unit 324. The wrench body 31 is configured to apply a torque to a workpiece (such as a nut). The torque sensor 321 is used to sense the torque. Whether it is greater than a preset torque value of 201121723; the angle sensor 322 is configured to sense one rotation angle of the wrench body 310 when the torque is greater than the preset torque value to generate an angle value. The gravity sensor 323 is used to The sensing unit body 310 is configured to correct the angle value according to the tilt angle to generate an accurate angle value. Thereby, the embodiment can compensate for the artificial operation error and thereby accurately measure the angle at which the workpiece is rotated. Specifically, in the case of FIG. 3B, the user may relax the force after turning the first angle α1. At this time, the torque sensor 321 senses that the torque is lower than a predetermined torque value, and then senses the sense of angle. The detector 322 does not accumulate the angle value. When the user continues to apply the torque greater than the preset torque value, the angle sensor 322 continues to accumulate the angle of the wrench body 31〇, that is, the angle at which the nut 200 is rotated. It is worth noting that the gravity sensor 323 detects the amount of change between the angle 0 1 and the angle 0 2 and corrects the measured value of the second angle α2 to compensate for the human error. In the sixth figure, the sixth figure is the detailed function of the fifth figure. In the sixth figure, the torque wrench with the gravity sensor further includes a display unit to display various types including precise angle values. Specifically, the display unit may include a screen 325, a warning light 326, and a buzzer 327. In addition, the torque wrench 3 having a gravity sensor may further include a storage unit 328 for storing various materials, such as = torque Value and intensive angle value H. The torque wrench with gravity sensor 3GG can also include - data transmission interface 329 to wire 201121723 or wirelessly transmit the above information. Finally, the torque wrench 300 with gravity sensor can provide a simple The operation interface 330 is for the user to input instructions or data. Referring to Figure 7A, Figure 7A is a circuit diagram of a gyroscope wafer of an embodiment. Specifically, the angle sensor is usually a gyroscope, and the available chip types include the ST series LY503ALH, LY510ALH, LPR510AL, LPY510AL, LY5150ALH, and LPY5150AL, and the ADI series ADXRS610 and ADXRS613 chips. The output signal of the gyro chip is transferred from the contact 401 to the processing unit 324. Please refer to FIG. 7B. FIG. 7B is a circuit diagram showing the gravity sensor of an embodiment. Specifically, G-sensors are available in ST series LIS202DL, LIS244AL, LIS331AL, LIS344AL, LIS344ALH, and LIS3V02DL, as well as the ADI series ADXL325, ADXL326, ADXL335, ADXL345, ADXL103, and ADXL203. Wait. The output signal of the gravity sensor is transmitted from the contact 402 to the processing unit 324. Referring to Figure 7C, Figure 7A is a circuit diagram of a processing unit of an embodiment. Taking the microchip of the chip type MSP430-F427 as an example, the MSP430-F427 chip receives the gyroscope signal by the contact point 403, that is, the signal connection contact 401; the contact point 404 receives the signal of the gravity sensor, that is, The signal is connected to the contact 402; the contact 405 and the contact 406 are used to receive the signal of the torque sensor. 201121723 Next, please refer to the flowchart of the steps of the shovel &14, the 8th figure of the 8th embodiment, and the actual calculation method. The first method for the accurate calculation of the twist angle of the twisting force is: first two or two = the exact calculation method includes the following steps: the torque wrench after the start time: the second value of the U angle. Then, as in step 5, Λ = 疋 turn angle to produce - angle torque wrench when rotating - tilt: sharpening: a f force sensor sense ^, shell angle. Next, as in step 530, the angle value is corrected using the tilt angle. (4) Referring to Fig. 9 and Fig. 9 is a detailed step 9 of Fig. 8, the rotation angle precision meter of the present embodiment can be further divided into seven steps: first, if step (4) is not performed first Twist the force measurement function, measure the torque value of the torque wrench applied to the work!! Then, as shown in step 620, it is determined whether the torque value is greater than a predetermined torque value by the processing unit or a comparator. Next, as shown in step 630, when the torque value is greater than the preset torque value, the angle measurement function is performed to calculate the angle at which the torque wrench body rotates to represent the angle at which the workpiece is rotated. At the same time, as shown in step 640, the angle sensor is used to detect whether the body of the torque wrench has a tilt and tilt angle geometry during the rotation. Then, as shown in step 650, the error caused by the tilt angle to the rotation angle is calculated when the tilt occurs. Next, as shown in step 660, the rotation angle value is corrected based on the value provided by the angle sensor to produce a precise angle value. Finally, as shown in step 670, an accurate angle value of 201121723 is provided to the user. The present invention has been disclosed in the above embodiments, but 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. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features, advantages and embodiments of the present disclosure more apparent, the description of the drawings is as follows: FIG. 1 to FIG. 3 are conventional torque wrenches. Operation diagram. Fig. 4 to Fig. 4C are schematic operations of a conventional sleeve type torque wrench. Fig. 5 is a functional block diagram of a torque wrench having a gravity sensor according to an embodiment of the present disclosure. Figure 6 is a detailed functional block diagram of Figure 5. Figure 7 is a circuit diagram of a gyro wafer according to an embodiment of the present disclosure. Figure 7 is a circuit diagram of a gravity sensor in accordance with an embodiment of the present disclosure. Figure 7C is a circuit diagram of a processing unit of an embodiment of the present disclosure. Figure 0 201121723 Figure 8 is a flow chart showing the steps of the method for accurately calculating the rotation angle of an embodiment of the present disclosure. Figure 9 is a flow chart showing the detailed steps of Figure 8. [Main component symbol description] 100: Torque wrench 101: Working portion 102: Grip 200: Nut 300: Torsion with gravity sensor 310: Wrench body force wrench 321: Torque sensor 323: Gravity sensor 325: Screen 327: Buzzer 329: Data transmission interface 401~406: Contact point 320: Circuit device 322: Angle sensor 324: Processing unit 326: Warning light 328: Storage unit 330: Operation interface 510~670: Step E S1 12