TWI709462B

TWI709462B - Pointer electronic torque wrench

Info

Publication number: TWI709462B
Application number: TW108117659A
Authority: TW
Inventors: 謝智慶
Original assignee: 優鋼機械股份有限公司
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-11-11
Also published as: TW202042979A

Abstract

一種指針式電子扭力扳手，其包含：一頭部；一主桿，前端自該頭部延伸，末端則具有一握把；一指針，一端固設於該頭部，其另一端為一自由端，該主桿受力時，該主桿會與指針之間產生位移變化；一顯示裝置，具有至少一顯示幕；一感測裝置，該指針係與該等感測裝置作動，使該感測裝置感測該扳手的扭力值並顯示於該顯示單元上。A pointer type electronic torque wrench, comprising: a head; a main rod, the front end extends from the head, and the end has a grip; a pointer, one end is fixed on the head, and the other end is a free end , When the main rod is stressed, the displacement between the main rod and the pointer will change; a display device has at least one display screen; a sensing device, the pointer and the sensing devices act to make the sensing The device senses the torque value of the wrench and displays it on the display unit.

Description

指針式電子扭力扳手Pointer electronic torque wrench

本發明係與一種手工具有關，特別是指一種透過主桿與指針之間位置變化產生數位扭力數值顯示之指針式電子扭力扳手。The present invention relates to a hand tool, in particular to a pointer type electronic torque wrench that generates a digital torque value display through the position change between the main rod and the pointer.

請參閱圖1所示，係習知一種指針式扭力扳手10，其包含有：一扳手桿11及一指針桿12，該扳手桿11之一端係設有一工作頭部111，該工作頭部111上並一體延伸設有一端呈自由端的指針桿12，該扳手桿11上並於對應該指針桿12自由端部位置設一扭力刻度表13，該指針桿12的自由端常態指示位於0刻度處；扳手桿11於工作頭部11的另端係以一握柄14相套合，指針式扭力扳手10常態下，指針桿12係與扳手桿11相平行者。Please refer to FIG. 1, which is a conventional pointer type torque wrench 10, which includes: a wrench rod 11 and a pointer rod 12, one end of the wrench rod 11 is provided with a working head 111, the working head 111 A pointer rod 12 with a free end is provided on the upper and integrally extended, the wrench rod 11 is provided with a torque scale 13 corresponding to the free end of the pointer rod 12, and the free end of the pointer rod 12 is normally indicated at 0 scale ; The other end of the wrench rod 11 at the working head 11 is fitted with a handle 14. In the normal state of the pointer type torque wrench 10, the pointer rod 12 is parallel to the wrench rod 11.

傳統扭力扳手於操作上，可將工作頭部111與工作件相套合，而操作者可藉握柄14施力扳轉該扳手桿11作動工作件，當施力扳轉扳手桿11的力道超出預設值時，該指針桿12會與扳手桿11之間呈相對角度的偏離，由原本的平行的狀態變成傾斜狀態，藉該指針桿12之自由端與扳手桿11桿身的偏離角度，而該指針桿12得以於該扭力刻度表13上指示出施加於扳手的扭力值。習知之指針式扭力扳手10使用時會有如下的問題：指針桿12的自由端於扭力刻度表13上顯示的讀數，必須在操作者持續施力扭轉的狀態下，方得以讀出，所以容易因使用者施力顫抖而使讀數不準確，並且，其轉距指針的讀數，必須在操作者持續施力扭轉的狀態下，方得以讀出，如此將耗費操作者不必要的體力；另外，因為扭力刻度表13係以刻度方式呈現數值，在判斷扭力值的過程中數值僅能有一概略指示值，並且因為刻度的判斷不易，常會產生誤讀的狀況。In the operation of the traditional torque wrench, the working head 111 can be fitted with the work piece, and the operator can use the handle 14 to force the wrench lever 11 to actuate the work piece. When the force of the wrench lever 11 is applied When the preset value is exceeded, the relative angle between the pointer rod 12 and the wrench rod 11 will deviate from the original parallel state to the inclined state. By virtue of the deviation angle between the free end of the pointer rod 12 and the shaft of the wrench rod 11 , And the pointer rod 12 can indicate the torque value applied to the wrench on the torque scale 13. The conventional pointer type torque wrench 10 has the following problems when using it: the free end of the pointer rod 12 on the torque scale 13 can be read only when the operator continues to apply force and twist, so it is easy The reading is inaccurate due to the user's force and shaking, and the reading of the torque pointer must be read when the operator continues to apply force and twist, which will consume unnecessary physical strength of the operator; in addition, Because the torque scale 13 presents values in a scale, the value can only have a rough indication in the process of judging the torque value, and because the judgment of the scale is not easy, misreading is often caused.

本發明主要目的係提供一種可以將偏移角度轉換成數位扭力顯示之指針式電子扭力扳手。The main purpose of the present invention is to provide a pointer electronic torque wrench that can convert the offset angle into a digital torque display.

為達上述目的，本發明係提供一種指針式電子扭力扳手，其包含有：一頭部；一主桿，前端固接頭部上，末端則具有一握把；一指針，一端固設於該頭部，其另一端為一自由端，且該主桿未受力時，該指針與該主桿概呈平行；該主桿受力時，該主桿會產生變形，使該指針之自由端係朝該主桿的側向偏移；一顯示裝置，設於該主桿上，具至少一顯示幕；一感測裝置，設於該主桿上，具有至少一感測單元，該指針之自由端係與該等感測單元作動，使該感測裝置感測該主桿彎曲變化，經由指針之自由端之位置變化改變該感測裝置之感測值，再轉換成扳手的扭力值：該等顯示幕係顯示該扭力值。 To achieve the above objective, the present invention provides a pointer-type electronic torque wrench, which includes: A head A main rod with a fixed joint at the front end and a grip at the end; A pointer, one end is fixed on the head, and the other end is a free end. When the main rod is not under force, the pointer and the main rod are almost parallel; when the main rod is stressed, the main rod will produce Deformed so that the free end of the pointer is offset toward the side of the main rod; A display device arranged on the main pole with at least one display screen; A sensing device is arranged on the main rod and has at least one sensing unit. The free end of the pointer acts with the sensing units, so that the sensing device senses the bending change of the main rod through the free end of the pointer The change in the position of the tip changes the sensing value of the sensing device, which is then converted to the torque value of the wrench: the display screens display the torque value.

較佳地，該感測單元係為一電阻式傳感器，該電阻式傳感器上設有一撥塊，該指針係與該撥塊相接，該撥塊的位置變化可改變該電阻式傳感器之電阻值。Preferably, the sensing unit is a resistive sensor, the resistive sensor is provided with a dial block, the pointer is connected to the dial block, and the position change of the dial block can change the resistance value of the resistive sensor .

較佳地，該感測單元係為一光學尺，該指針上設有一讀取頭，該讀取頭可以讀取該光學尺，以測得該指針的位置。Preferably, the sensing unit is an optical ruler, and a reading head is provided on the pointer, and the reading head can read the optical ruler to measure the position of the pointer.

較佳地，該感測單元係為一距離感測器，該距離感測器可以測量該主桿與指針之間的位移量。Preferably, the sensing unit is a distance sensor, and the distance sensor can measure the displacement between the main rod and the pointer.

本發明所提供之指針式電子扭力扳手，其主桿受力彎折後，指針自由端會相對產生側向偏移，該指針在該等感測單元上作動產生位置的變化，轉換成一對應的數位扭力值，並顯示到該顯示幕上，產生一數位扭力值的顯示；使用者可以透過顯示幕的顯示而可輕易且準確地知道扭力數值。In the pointer electronic torque wrench provided by the present invention, after the main rod is bent under force, the free end of the pointer will be relatively laterally offset. The pointer moves on the sensing units to generate position changes, which are converted into a corresponding Digit torque value and display it on the display screen to produce a digital torque value display; the user can easily and accurately know the torque value through the display screen.

請參閱圖2及3所示，係本發明一較佳實施例所提供之扭力扳手20，其包含有：一頭部30、一主桿40、一指針50、一殼體60、一顯示裝置70及一感測裝置80；該主桿40一端固接於該頭部30，該指針50一端固設於該頭部30上，另端則為一自由端，主桿40未受力時，該指針50與該主桿40係概呈平行；該顯示裝置70設於殼體60上，具有一顯示幕71；該感測裝置80具有一感測單元81，該指針50之自由端於該感測單元81上作動，該指針50之自由端位置變化會影響該感測單元81的數值；當該主桿40受力後，該主桿40會因受力產生變形，使該指針50與該主桿40之間會以該頭部30為軸心產生一個角位移，使該指針50之自由端與主桿40之間變化位置，進而使該感測單元81可以因為數值(如電阻值、距離量測)之變化測得對應的扭力數值，並顯示於該顯示裝置70之顯示幕71上；可提升數據判讀的準確率及速度。Please refer to Figures 2 and 3, which is a torque wrench 20 provided by a preferred embodiment of the present invention, which includes: a head 30, a main rod 40, a pointer 50, a housing 60, and a display device 70 and a sensing device 80; one end of the main rod 40 is fixed to the head 30, one end of the pointer 50 is fixed to the head 30, and the other end is a free end. When the main rod 40 is not under force, The pointer 50 and the main rod 40 are roughly parallel; the display device 70 is arranged on the housing 60 and has a display screen 71; the sensing device 80 has a sensing unit 81, and the free end of the pointer 50 is on the When the sensing unit 81 is actuated, the change of the free end position of the pointer 50 will affect the value of the sensing unit 81; when the main rod 40 is stressed, the main rod 40 will deform due to the force, causing the pointer 50 and The main rod 40 will produce an angular displacement with the head 30 as the axis, so that the position of the free end of the pointer 50 and the main rod 40 can be changed, so that the sensing unit 81 can change the position due to the value (such as resistance value). , Distance measurement) The corresponding torque value is measured by the change and displayed on the display screen 71 of the display device 70; the accuracy and speed of data interpretation can be improved.

請參閱圖2至4所示，該頭部30內部係設置有一棘輪機構31，該棘輪機構31前端凸伸有一工作頭311，該工作頭311於本實施例中係為一四角頭，使其可與套筒相連接，並驅動套筒對工件進行施力；該工作頭311亦可為六角頭或四角孔、六角孔之孔槽；為了要使該棘輪機構31可以更換施力方向，該頭部30之側邊並設有一換向機構32，該棘輪機構31與換向機構32之換向及施力方式係與一般棘輪相同，在此不另贅述。Please refer to Figures 2 to 4, the head 30 is internally provided with a ratchet mechanism 31. The front end of the ratchet mechanism 31 protrudes with a working head 311. The working head 311 is a four-corner head in this embodiment. It can be connected with the sleeve and drive the sleeve to apply force to the workpiece; the working head 311 can also be a hexagonal head, a four-corner hole, or a hexagonal hole; in order to enable the ratchet mechanism 31 to change the direction of force, The side of the head 30 is also provided with a reversing mechanism 32. The reversing and force applying methods of the ratchet mechanism 31 and the reversing mechanism 32 are the same as those of a general ratchet, and will not be described here.

該主桿40，前端與該頭部30固接，末端則形成有一握把41。The main rod 40 is fixedly connected to the head 30 at the front end, and a grip 41 is formed at the end.

請參閱圖2及3所示，該指針50一端固接於該頭部30上，其另一端形成一自由端，該主桿40未受力時，該指針50係與該主桿40保持平行，該指針50之自由端上並設有一接軸51；當該主桿40受力時，該主桿40會產生以頭部30為軸心產生變形，使該指針50之自由端會相對往主桿40受力方向之反方向側偏擺，兩者之間會產生一個距離的變化。Please refer to Figures 2 and 3, one end of the pointer 50 is fixed to the head 30, and the other end forms a free end. When the main rod 40 is not under force, the pointer 50 is kept parallel to the main rod 40 , The free end of the pointer 50 is provided with a shaft 51; when the main rod 40 is stressed, the main rod 40 will be deformed with the head 30 as the axis, so that the free end of the pointer 50 will face The main rod 40 yaws in the opposite direction of the force direction, and a distance change occurs between the two.

一殼體60，固設於主桿40上；該殼體60上設有一長槽61，該長槽61沿主桿40的徑向設於該殼體60上，該設定按鈕組86會凸設於該殼體60上。A housing 60 is fixed on the main rod 40; the housing 60 is provided with a long groove 61, the long groove 61 is provided on the housing 60 along the radial direction of the main rod 40, and the setting button group 86 will be convex Set on the shell 60.

請參閱圖2及3所示，該顯示裝置70之顯示幕71係固設於該主桿40之殼體60上。Please refer to FIGS. 2 and 3, the display screen 71 of the display device 70 is fixed on the housing 60 of the main pole 40.

請參閱圖2、圖3及圖5所示，該感測裝置80包含有該感測單元81、一處理單元83、一設定按鈕組86及一警示器87。Please refer to FIG. 2, FIG. 3 and FIG. 5, the sensing device 80 includes the sensing unit 81, a processing unit 83, a setting button group 86 and an alarm 87.

該感測單元81係為一電阻式傳感器811，該電阻式傳感器811裝設於該殼體60內，該電阻式傳感器811上係設有一可移動的撥塊812，該撥塊812並露出於該長槽61，該撥塊812的位置會改變該電阻式傳感器811之電阻值；該指針50之自由端與該撥塊812相樞接，該指針50會帶動該撥塊812在該電阻式傳感器811變化位置，使該感測單元81產生不同的電阻值，從而產生不同的電壓變化，該電壓值將透過該處理單元83轉換成(0513)成對應的扭力值大小，該感測單元81除了使用電阻式傳感器811外，如圖9所示的光學尺或如圖10及11所示的距離感測器等其他可透過主桿40與指針50間位置變化來轉換感測數值的感應器也可以做為感測單元81；該處理單元83並將轉換後對應的扭力值顯示至該顯示幕71上；The sensing unit 81 is a resistive sensor 811, the resistive sensor 811 is installed in the housing 60, the resistive sensor 811 is provided with a movable shift block 812, the shift block 812 is exposed to The long slot 61 and the position of the dial block 812 will change the resistance value of the resistive sensor 811; the free end of the pointer 50 is pivotally connected to the dial block 812, and the pointer 50 will drive the dial block 812 in the resistive sensor 811 The position of the sensor 811 changes, so that the sensing unit 81 generates different resistance values, thereby generating different voltage changes. The voltage value will be converted (0513) into the corresponding torque value through the processing unit 83. The sensing unit 81 In addition to using the resistive sensor 811, the optical ruler as shown in FIG. 9 or the distance sensor as shown in FIGS. 10 and 11 and other sensors that can convert the sensed value through the position change between the main rod 40 and the pointer 50 It can also be used as a sensing unit 81; the processing unit 83 displays the converted torque value on the display screen 71;

請配合參閱圖5，該撥塊812頂端係設有一穿槽8121，該穿槽8121內樞設有該指針50自由端之接軸51，使該指針50偏擺時可以連動該撥塊812沿該長槽61於主桿40之徑向兩側移動，而使該撥塊812可在電阻式傳感器811上進行位置的變化。Please refer to Figure 5, the top of the shift block 812 is provided with a through slot 8121, the through groove 8121 is pivoted with the free end of the pointer 50 shaft 51, so that the pointer 50 can move along the shift block 812 The long slot 61 moves on both sides of the main rod 40 in the radial direction, so that the shift block 812 can change the position on the resistive sensor 811.

另外，該設定按鈕組86，其可設定給予該處理單元83一個扭力設定值，當該感測單元81的電阻值轉換之扭力值對應到扭力設定值，亦即，該指針50帶動該撥塊812移動到對應的扭力設定值位置時，該處理單元83可以驅動該警示器87進行警示，該警示器87可為蜂鳴器產生聲音的警示、或是燈光、震動等不同方式進行警示作用。In addition, the setting button group 86 can be set to give the processing unit 83 a torque setting value. When the resistance value of the sensing unit 81 converts the torque value to the torque setting value, that is, the pointer 50 drives the dial block When the 812 moves to the corresponding torque setting value position, the processing unit 83 can drive the warning device 87 to warn. The warning device 87 can generate a sound warning for a buzzer, or perform warning functions in different ways such as light and vibration.

請參閱圖3、圖4及圖6所示，當該扭力扳手20開始使用時，可先透過換向機構32來選擇該棘輪機構31之工作方向，如逆時針方向施力，施力時，使用者於該主桿40之握把41上往逆時針方向側施力，使該棘輪機構31之工作頭311可以驅動工件轉動。Please refer to Fig. 3, Fig. 4 and Fig. 6, when the torque wrench 20 starts to be used, the working direction of the ratchet mechanism 31 can be selected through the reversing mechanism 32. For example, when the force is applied counterclockwise, The user applies a force on the grip 41 of the main rod 40 to the counterclockwise direction, so that the working head 311 of the ratchet mechanism 31 can drive the workpiece to rotate.

請參閱圖6所示，當施力到一定程度後，該主桿40會因為工件已經轉緊無法繼續轉動，施加於主桿40上的力量會使其受力而產生彎折，該指針50並保持原本的位置，使該主桿40與指針50之間會以該頭部30之位置為軸心而產生偏移，逆時針施力時，該指針50之自由端會偏移至主桿40之左側，也就是指針50相對往順時針方向偏移，該指針50之自由端偏移時會帶動該撥塊812往左邊移動，該指針50之自由端帶動撥塊812產生位置的變化，而會使得該電阻式傳感器811產生一電阻值的變化，該電阻值的變化會對應到不同的電壓值，並傳送至處理單元83轉換成不同的扭力值，經過該處理單元83處理轉換成對應的扭力值後並傳送至該顯示幕71進行顯示，使用者透過顯示幕71即可輕易且快速的得到目前的數值，可降低判斷時間及提高準確度；另外，該處理單元83可以對於電阻式傳感器811所輸入的扭力值與設定按鈕86所輸入的扭力設定值進行一比對，當使用者施加於該握把41的扭力值超過扭力設定值時，該處理單元83會驅動該警示器87進行一蜂鳴警示，告訴使用者施加的扭力值已經到達扭力設定值。Please refer to FIG. 6, when the force is applied to a certain level, the main rod 40 cannot continue to rotate because the workpiece has been tightened, and the force applied to the main rod 40 will cause it to bend and bend. The pointer 50 And keep the original position, so that the main rod 40 and the pointer 50 will be offset with the position of the head 30 as the axis. When force is applied counterclockwise, the free end of the pointer 50 will shift to the main rod The left side of the pointer 40, that is, the pointer 50 is relatively clockwise. When the free end of the pointer 50 shifts, the shifting block 812 will move to the left, and the free end of the pointer 50 will drive the shifting block 812 to change its position. This will cause the resistive sensor 811 to produce a change in resistance value. The change in resistance value will correspond to a different voltage value, and will be sent to the processing unit 83 to be converted into a different torque value, which is processed by the processing unit 83 and converted into a corresponding The torque value is transmitted to the display screen 71 for display. The user can easily and quickly obtain the current value through the display screen 71, which can reduce the judgment time and improve the accuracy; in addition, the processing unit 83 can be used for resistive The torque value input by the sensor 811 is compared with the torque setting value input by the setting button 86. When the torque value applied to the grip 41 by the user exceeds the torque setting value, the processing unit 83 will drive the alarm 87 A buzzer warning is issued to inform the user that the applied torque value has reached the torque setting value.

請參閱圖7及圖8所示，其係本發明之第二較佳實施例，其主要結構係與前述相同，故不再贅述，其中：該顯示裝置70具有兩顯示幕，一個為第一顯示幕72，另一個為第二顯示幕73；該第一顯示幕72係設於該顯示單元70左半側，該第二顯示幕73則設於顯示單元70之右半側；該感測裝置80也相對設置一第一感測單元84及一第二感測單元85，或是一可具有感測移動方向的感測單元；該第一感測單元84係設於該感測裝置80的右半側，該第二感測單元85係設於該感測裝置80的左半側；當該主桿40往逆時針方向施力時，該指針50之自由端會相對往左邊偏移，該指針50之自由端會往第二感測單元85方向移動，並且將扭力數值顯示在位於右邊的第二顯示幕73的位置；相反的，如果該主桿40往順時針方向施力時，該指針50之自由端會相對往右邊偏移，往第一感測單元84方向移動，此時，位在左側的第一顯示幕72即顯示施加的扭力值，將顯示幕顯示的位置與指針50之自由端指示的位置錯開顯示，可以避免指針50之自由端影響到扭力數值的判讀。Please refer to FIG. 7 and FIG. 8, which is the second preferred embodiment of the present invention. Its main structure is the same as the foregoing, so it will not be repeated here. Among them: the display device 70 has two display screens, one is the first The display screen 72 is the second display screen 73; the first display screen 72 is arranged on the left half of the display unit 70, and the second display screen 73 is arranged on the right half of the display unit 70; the sensing The device 80 is also provided with a first sensing unit 84 and a second sensing unit 85, or a sensing unit capable of sensing the moving direction; the first sensing unit 84 is provided in the sensing device 80 The second sensing unit 85 is located on the left half of the sensing device 80; when the main rod 40 is forced counterclockwise, the free end of the pointer 50 will shift to the left , The free end of the pointer 50 will move in the direction of the second sensing unit 85, and the torque value will be displayed at the position of the second display screen 73 on the right; on the contrary, if the main rod 40 is forced in the clockwise direction , The free end of the pointer 50 will shift to the right relative to the direction of the first sensing unit 84. At this time, the first display screen 72 on the left will display the applied torque value, and the position displayed on the display screen will be The position indicated by the free end of the pointer 50 is displayed staggered, which can prevent the free end of the pointer 50 from affecting the interpretation of the torque value.

請參閱圖9所示，其係為本發明之第三較佳實施例，其主要結構係與第一較佳實施例同，故不再贅述，其中：該感測裝置80之感測單元81係為一光學尺813所構成，該光學尺813係沿該主桿40之徑向設置於該殼體60內部，該光學尺813具有兩個間隔設置的編碼條8131，該指針50靠近感測裝置80側並設有一讀取頭52，該指針50與該主桿40產生相對位移時，該指針50上的讀取頭52會經由該殼體60之長槽61對該光學尺813之編碼條8131有一量測的作用，透過量測該編碼條8131而可測得該讀取頭52與主桿40間的距離，也就是指針50與主桿40之間的距離有一測量作用，可以知道該指針50與該主桿40之間偏移的距離，透過距離的量測由該處理單元83換算成對應的扭力值，並傳送到該顯示裝置70之顯示幕71進行顯示。Please refer to FIG. 9, which is the third preferred embodiment of the present invention, and its main structure is the same as the first preferred embodiment, so it will not be repeated here. Among them: the sensing unit 81 of the sensing device 80 It is composed of an optical ruler 813. The optical ruler 813 is arranged inside the casing 60 along the radial direction of the main rod 40. The optical ruler 813 has two code bars 8131 arranged at intervals. The pointer 50 is close to the sensor A reading head 52 is also provided on the side of the device 80. When the pointer 50 and the main rod 40 are relatively displaced, the reading head 52 on the pointer 50 encodes the optical scale 813 through the long slot 61 of the housing 60 The bar 8131 has a measuring function. By measuring the code bar 8131, the distance between the reading head 52 and the main rod 40 can be measured, that is, the distance between the pointer 50 and the main rod 40 has a measuring function, you can know The offset distance between the pointer 50 and the main rod 40 is measured by the processing unit 83 and converted into a corresponding torque value, and then transmitted to the display screen 71 of the display device 70 for display.

請參閱圖10及11所示，其係為本發明所提供之第三較佳實施例，其主要結構係與第一較佳實施例相同，故不再贅述，其中：該感測裝置80之感測單元81係為一距離感測器814，如紅外線、超音波或是雷射等形式的非接觸式距離感測器，該距離感測器814設於該殼體60內部之側邊，該距離感測器814會隨著該主桿40變形而移動位置，相對的會使該距離感測器814與該指針50之自由端之間的距離產生變化，透過量測該指針50之自由端與距離感測器814之間距離的改變，而可由該處理單元83轉換成對應的扭力值。Please refer to Figures 10 and 11, which is the third preferred embodiment provided by the present invention. Its main structure is the same as that of the first preferred embodiment, so it will not be repeated here. Among them: the sensing device 80 The sensing unit 81 is a distance sensor 814, such as a non-contact distance sensor in the form of infrared, ultrasonic or laser. The distance sensor 814 is arranged on the side of the housing 60. The distance sensor 814 will move along with the deformation of the main rod 40, and the distance between the distance sensor 814 and the free end of the pointer 50 will change accordingly. By measuring the free end of the pointer 50 The change of the distance between the terminal and the distance sensor 814 can be converted into a corresponding torque value by the processing unit 83.

本發明所提供的指針式電子扭力扳手，透過該感測裝置感測該主桿與指針之間的位置變化，而可轉換對應的扭力值，並透過顯示裝置的顯示幕，將扭力值透過一數值方式進行呈現，可提升判斷的準確率及速度。The pointer-type electronic torque wrench provided by the present invention senses the position change between the main rod and the pointer through the sensing device, and can convert the corresponding torque value, and transmits the torque value through the display screen of the display device. Presenting numerically can improve the accuracy and speed of judgment.

10:扭力扳手 11:板手桿 111:工作頭部 12:指針桿 13:扭力刻度表 14:握柄 20:扭力扳手 30:頭部 31:棘輪機構 311:工作頭 32:換向機構 40:主桿 41:握把 50:指針 51:接軸 52:讀取頭 60:殼體 61:長槽 70:顯示裝置 71:顯示幕 72:第一顯示幕 73:第二顯示幕 80:感測裝置 81:感測單元 811:電阻式傳感器 812:撥塊 8121:穿槽 813:光學尺 8131:編碼條 814:距離感測器 83:處理單元 84:第一感測單元 85:第二感測單元 86:設定按鈕組 87:警示器10: Torque wrench 11: Wrench 111: working head 12: pointer rod 13: Torque scale 14: Grip 20: Torque wrench 30: head 31: Ratchet mechanism 311: working head 32: Reversing mechanism 40: main pole 41: Grip 50: pointer 51: Shaft 52: read head 60: shell 61: Long slot 70: display device 71: Display 72: First display 73: Second display 80: sensing device 81: sensing unit 811: resistive sensor 812: dial block 8121: wear slot 813: Optical ruler 8131: coding bar 814: Distance Sensor 83: processing unit 84: The first sensing unit 85: second sensing unit 86: Set button group 87: Warning

為使貴審查委員能進一步瞭解本發明之目的、特徵以及所達成之功效，以下茲舉三較佳實施例，並配合圖式詳細說明於後，其中：圖1為習知指針式扭力扳手之立體外觀圖。圖2為本發明第一較佳實施例指針式電子扭力扳手之立體外觀圖。圖3為圖2之頂視圖。圖4為圖2之扭力扳手之頭部與指針之局部側視圖。圖5為指針與撥塊結合位置之剖面示意圖。圖6為顯示單元與指針施力作動時之數值顯示示意圖。圖7為本發明第二較佳實施例之扳手順時針施力時指針施力作動時之數值顯示示意圖。圖8為本發明第二較佳實施例之扳手逆時針施力時指針施力作動時之數值顯示示意圖。圖9為本發明第三較佳實施例之感測單元使用光學尺之立體外觀圖。圖10為本發明第四較佳實施例之感測單元使用距離感測器之頂視圖。圖11為本發明第四較佳實施例之感測單元使用距離感測器之動作示意圖。 In order to enable your reviewer to further understand the purpose, features, and effects of the present invention, three preferred embodiments are listed below, which are described in detail in conjunction with the drawings. Among them: Figure 1 is a perspective view of a conventional pointer type torque wrench. Fig. 2 is a perspective view of the analog electronic torque wrench according to the first preferred embodiment of the present invention. Figure 3 is a top view of Figure 2; Figure 4 is a partial side view of the head and pointer of the torque wrench of Figure 2; Figure 5 is a schematic cross-sectional view of the combined position of the pointer and the dial. Fig. 6 is a schematic diagram of the numerical display when the display unit and the pointer are actuated by force. FIG. 7 is a schematic diagram showing the numerical display of the pointer when the pointer is actuated when the wrench is clockwise in the second preferred embodiment of the present invention. FIG. 8 is a schematic diagram showing the numerical display of the pointer when the pointer is actuated when the wrench is applied counterclockwise in the second preferred embodiment of the present invention. FIG. 9 is a perspective view of the optical ruler used in the sensing unit of the third preferred embodiment of the present invention. FIG. 10 is a top view of a distance sensor used in the sensing unit of the fourth preferred embodiment of the present invention. 11 is a schematic diagram of the operation of the sensing unit using a distance sensor in the fourth preferred embodiment of the present invention.

20:扭力扳手 20: Torque wrench

30:頭部 30: head

31:棘輪機構 31: Ratchet mechanism

311:工作頭 311: working head

32:換向機構 32: Reversing mechanism

40:主桿 40: main pole

41:握把 41: Grip

50:指針 50: pointer

51:接軸 51: Shaft

60:殼體 60: shell

61:長槽 61: Long slot

70:顯示裝置 70: display device

71:顯示幕 71: Display

80:感測裝置 80: sensing device

81:感測單元 81: sensing unit

811:電阻式傳感器 811: resistive sensor

812:撥塊 812: dial block

8121:穿槽 8121: wear slot

83:處理單元 83: processing unit

86:設定按鈕組 86: Set button group

87:警示器 87: Warning

Claims

一種指針式電子扭力扳手，其包含有：一頭部；一主桿，前端固接該頭部上，末端則具有一握把；一指針，一端係固設於該頭部，其另一端為一自由端，且該主桿未受力時，該指針係與該主桿概呈平行；該主桿受力時，該主桿會產生變形，使指針之自由端係朝該主桿的側向偏移；一顯示裝置，設於該主桿上，具有至少一顯示幕；一感測裝置，設於該主桿上，具有至少一感測單元；該指針之自由端係與該等感測單元作動，使該感測裝置感測該扳手的扭力值；該等顯示幕係顯示該扭力值。 A pointer type electronic torque wrench, which contains: A head A main rod, the front end is fixed to the head, and the end has a grip; A pointer, one end is fixed on the head, the other end is a free end, and when the main rod is not under force, the pointer is almost parallel to the main rod; when the main rod is under force, the main rod It will deform, causing the free end of the pointer to shift toward the side of the main rod; A display device, arranged on the main pole, with at least one display screen; A sensing device is arranged on the main rod and has at least one sensing unit; the free end of the pointer acts with the sensing units, so that the sensing device senses the torque value of the wrench; the display screens The system displays the torque value.

如請求項1所述之指針式電子扭力扳手，其中，該感測單元係為一電阻式傳感器，該電阻式傳感器上設有一可位移之撥塊，該指針之自由端係與該撥塊相連接。The pointer-type electronic torque wrench according to claim 1, wherein the sensing unit is a resistive sensor, the resistive sensor is provided with a shiftable dial block, and the free end of the pointer corresponds to the dial block connection.

如請求項1所述之指針式電子扭力扳手，其中，該感測裝置更包含有：一處理單元、一設定按鈕組及一警示器，該設定按鈕組可以設定一設定扭力值，該處理單元可比對該感測單元偵測之扭力值是否高於設定扭力值，並驅動該警示器進行警示。The analog electronic torque wrench according to claim 1, wherein the sensing device further includes: a processing unit, a setting button group, and an alarm, the setting button group can set a set torque value, the processing unit It can compare whether the torque value detected by the sensing unit is higher than the set torque value, and drive the warning device to warn.

如請求項1所述之指針式電子扭力扳手，其中，該感測單元係為一光學尺，該指針之自由端設有一讀取頭，該讀取頭係可讀取該光學尺來測量該主桿與指針間之位移。The pointer-type electronic torque wrench according to claim 1, wherein the sensing unit is an optical ruler, the free end of the pointer is provided with a reading head, and the reading head can read the optical ruler to measure the The displacement between the main rod and the pointer.

如請求項1所述之指針式電子扭力扳手，其中，該感測單元係為一距離感測器，該距離感測器可量測該主桿與指針間之位移。The pointer electronic torque wrench according to claim 1, wherein the sensing unit is a distance sensor, and the distance sensor can measure the displacement between the main rod and the pointer.

如請求項1至5任一項所述之指針式電子扭力扳手，其中，該顯示裝置係具有一第一顯示幕與一第二顯示幕。The analog electronic torque wrench according to any one of claims 1 to 5, wherein the display device has a first display screen and a second display screen.

如請求項1至5任一項所述之指針式電子扭力扳手，其中，更包含有一殼體，該殼體係設於該主桿上。The analog electronic torque wrench according to any one of claims 1 to 5, further comprising a housing, and the housing system is arranged on the main rod.

如請求項7所述之指針式電子扭力扳手，其中，該顯示裝置係設於該殼體上。The analog electronic torque wrench according to claim 7, wherein the display device is arranged on the housing.

如請求項7所述之指針式電子扭力扳手，其中，該感測裝置的感測單元係沿該主桿之徑向設置於該殼體內。The analog electronic torque wrench according to claim 7, wherein the sensing unit of the sensing device is arranged in the housing along the radial direction of the main rod.

如請求項 2所述之指針式電子扭力扳手，其中，更包含有一殼體，該殼體上具有一長槽沿該主桿之徑向設置；該感測單元之電阻式傳感器係設置於該殼體內，該撥塊並露出於該長槽與該指針之自由端相連接。The analog electronic torque wrench according to claim 2, which further includes a housing with a long groove arranged along the radial direction of the main rod; the resistive sensor of the sensing unit is arranged on the In the shell, the dial block is exposed in the long groove and is connected with the free end of the pointer.

如請求項1所述之指針式電子扭力扳手，其中，該頭部內係設置有一棘輪機構，該頭部並設置有一換向機構，該換向機構可改變該棘輪機構之施力方向。The pointer electronic torque wrench according to claim 1, wherein the head is provided with a ratchet mechanism, and the head is also provided with a reversing mechanism, and the reversing mechanism can change the direction of application of the ratchet mechanism.