TWM510808U

TWM510808U - Wire-supply balance stabilizing device of wire cutting machine

Info

Publication number: TWM510808U
Application number: TW104206552U
Authority: TW
Inventors: rui-cheng Zhang; Song-Neng Zheng; sheng-zhi Xu
Original assignee: Excetek Technologies Co Ltd
Priority date: 2015-04-29
Filing date: 2015-04-29
Publication date: 2015-10-21

Description

線切割機供線平衡穩定裝置Wire cutting machine supply line balance stabilization device

本新型是有關於一種平衡穩定裝置，特別是指一種線切割機供線平衡穩定裝置。The present invention relates to a balance stabilization device, and more particularly to a wire balancer supply line balance stabilization device.

習知一種線切割機包括一切割線、一供線單元，及一用以捲收該切割線的收線單元。該供線單元具有一供線輪，及一帶動該供線輪，以捲出該切割線的馬達。由於該供線輪持續不斷地捲出該切割線，而使得該供線輪的輪徑逐漸變小。若該馬達不能對應地調整其轉速，將使得該切割線的張力逐漸變大，甚至發生斷裂造成加工中止。另外，若收線單元的收線速度過慢，也會造成該切割線的張力過小而產生鬆脫跳動，使得加工精度下降。A wire cutting machine includes a cutting wire, a wire feeding unit, and a wire take-up unit for winding the cutting wire. The supply unit has a supply reel and a motor that drives the supply reel to unwind the cutting line. Since the supply reel continuously winds out the cutting line, the wheel diameter of the reel is gradually reduced. If the motor cannot adjust its rotational speed correspondingly, the tension of the cutting line will gradually become larger, and even the breakage may cause the machining to be stopped. In addition, if the wire take-up speed of the wire take-up unit is too slow, the tension of the wire may be too small to cause loosening and jumping, so that the machining accuracy is lowered.

因此，有如中華民國新型專利第M492794號所揭示的一種線切割機供線平衡穩定裝置。在該供線單元與該收線單元之間設置一受該切割線牽引擺動的平衡錘，並且透過一加速度感應器(G-sensor)感知該平衡錘的擺動位置，而作為控制該馬達轉速的回授物理量，以維持該切割線的張力。Therefore, there is a wire balancer supply line balance stabilization device disclosed in the Republic of China No. M492794. A counterweight that is oscillated by the cutting line is disposed between the wire feeding unit and the wire take-up unit, and the swinging position of the counterweight is sensed through an acceleration sensor (G-sensor) as a speed for controlling the motor speed. The physical quantity is feedback to maintain the tension of the cutting line.

然而，該加速度感應器是依靠該平衡錘擺動產生的切線加速度，並以積分的方式計算出該平衡錘的相對位置。因此該相對位置具有偏移誤差(Error Drift)，並且隨著使用時間越長，偏移誤差累積越多，而無法正確地控制該馬達轉速。However, the acceleration sensor is oscillated by the counterweight The tangential acceleration of the tangential is calculated and the relative position of the counterweight is calculated in an integrated manner. Therefore, the relative position has an offset error (Error Drift), and as the usage time is longer, the offset error is accumulated more, and the motor rotation speed cannot be properly controlled.

因此，本新型之目的，即在提供一種透過獲得該平衡錘的絕對位置，而準確地回授控制該切割線張力的線切割機供線平衡穩定裝置。Accordingly, it is an object of the present invention to provide a wire cutter supply line balance stabilization device that accurately controls the tension of the cutting wire by obtaining the absolute position of the counterweight.

於是，本新型線切割機供線平衡穩定裝置，適用於一線切割機。該線切割機包括一切割線、一供線單元，及一用以捲收該切割線的收線單元。該供線單元具有一供線輪，及一帶動該供線輪，以捲出該切割線的馬達。該裝置包含一平衡錘、一非接觸式編碼器，及一回授控制器。Therefore, the wire cutting machine of the present invention is provided with a line balance stabilization device, which is suitable for a wire cutting machine. The wire cutter includes a cutting line, a wire feeding unit, and a wire take-up unit for winding the cutting wire. The supply unit has a supply reel and a motor that drives the supply reel to unwind the cutting line. The device includes a counterweight, a non-contact encoder, and a feedback controller.

該平衡錘裝設於該供線單元與該收線單元之間，並受該切割線的牽引，而在一平衡狀態與一非平衡狀態之間擺動。The counterweight is installed between the supply unit and the take-up unit, and is pulled by the cutting line to swing between an equilibrium state and an unbalanced state.

該非接觸式編碼器用以偵測該平衡錘狀態，並輸出一回授信號。The non-contact encoder is configured to detect the state of the counterweight and output a feedback signal.

該回授控制器用以根據該回授信號，而對該馬達輸出一控制信號，使該平衡錘維持在該平衡狀態。The feedback controller is configured to output a control signal to the motor according to the feedback signal to maintain the counterweight in the equilibrium state.

本新型之功效在於：藉由該非接觸式編碼器偵測該平衡錘的絕對位置，並對該回授控制器輸出作為控制該馬達轉速的該回授信號，以達成維持該切割線張力的功效。The utility model has the following advantages: detecting the absolute position of the counterweight by the non-contact encoder, and outputting the feedback controller as the feedback signal for controlling the rotation speed of the motor to achieve the effect of maintaining the tension of the cutting line .

1‧‧‧平衡錘1‧‧‧Balance hammer

11‧‧‧桿件11‧‧‧ rods

12‧‧‧平衡輪12‧‧‧balance wheel

2‧‧‧非接觸式編碼器2‧‧‧ Non-contact encoder

3‧‧‧回授控制器3‧‧‧Return controller

4‧‧‧開關單元4‧‧‧Switch unit

41‧‧‧開關41‧‧‧ switch

42‧‧‧命令控制器42‧‧‧Command Controller

51‧‧‧切割線51‧‧‧ cutting line

52‧‧‧供線單元52‧‧‧Power supply unit

521‧‧‧供線輪521‧‧‧ Supply wheel

522‧‧‧馬達522‧‧‧Motor

53‧‧‧收線單元53‧‧‧Receiving unit

本新型之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中：圖1是一示意圖，說明本新型線切割機供線平衡穩定裝置之一實施例，並裝設於一線切割機；圖2是一局部立體圖，說明一切割線由一供線單元捲出，並纏繞於該實施例中的一平衡錘；及圖3是一流程圖，說明該實施例與該供線單元之間的信號流程。Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a schematic view showing an embodiment of the wire balancer stabilization device of the present invention. FIG. 2 is a partial perspective view showing a cutting line taken up by a supply unit and wound around a counterweight in the embodiment; and FIG. 3 is a flow chart illustrating the embodiment and the supply Signal flow between line units.

參閱圖1與圖3，本新型線切割機供線平衡穩定裝置的一實施例適用於一線切割機。該線切割機包括一切割線51、一供線單元52，及一用以捲收該切割線51的收線單元53。該供線單元52具有一供線輪521，及一帶動該供線輪521，以捲出該切割線51的馬達522。該線切割機供線平衡穩定裝置包含一平衡錘1、一非接觸式編碼器2、一回授控制器3，及一開關單元4。Referring to Figures 1 and 3, an embodiment of the wire balancer supply line balance stabilization device of the present invention is suitable for use in a wire cutter. The wire cutter includes a cutting line 51, a wire feeding unit 52, and a wire take-up unit 53 for winding the cutting wire 51. The supply unit 52 has a supply reel 521 and a motor 522 that drives the supply reel 521 to unwind the cutting line 51. The wire cutter supply line balance stabilization device comprises a balance hammer 1, a non-contact encoder 2, a feedback controller 3, and a switch unit 4.

參閱圖1與圖2，該平衡錘1裝設於該供線單元52與該收線單元53之間，並包括一桿件11、一裝設於該桿件11一端的平衡輪12。而該非接觸式編碼器2裝設於該桿件11另一端，當該平衡輪12受該切割線51的牽引拉扯，帶動該桿件11相對於該非接觸式編碼器2在一平衡狀態與一非平衡狀態之間擺動。在本實施例中，若該桿件11呈水平擺置，則該平衡輪12是處於該平衡狀態，反之，則處於該非平衡狀態。Referring to FIG. 1 and FIG. 2 , the counterweight 1 is disposed between the wire feeding unit 52 and the wire take-up unit 53 and includes a rod 11 and a balance wheel 12 mounted on one end of the rod 11 . The non-contact encoder 2 is mounted on the other end of the rod member 11. When the balance wheel 12 is pulled by the cutting line 51, the rod member 11 is driven in an equilibrium state with respect to the non-contact encoder 2 Swing between non-equilibrium states. In this embodiment, if the rod 11 is horizontally placed, the balance wheel 12 is in the equilibrium state, and vice versa. This unbalanced state.

參閱圖2與圖3，該非接觸式編碼器2用以偵測該平衡錘1偏離該平衡狀態的一誤差量，並輸出一相關於該誤差量的回授信號。要說明的是，該非接觸式編碼器2是一編碼轉盤相對於一偵測器旋轉，而將該編碼轉盤的旋轉位置，藉由該偵測器轉換成一電位信號。其中，該偵測器與該編碼轉盤並不互相接觸，所以不會因為零件磨耗而產生故障或靈敏度降低等問題。並且，由於該平衡輪12不會相對於該非接觸式編碼器2轉動超過一圈，所以不論是增量型編碼器，或是絕對型編碼器，都能獲得該平衡輪12的絕對位置，以作為控制該馬達522轉速的回授信號。在本實施例中，該非接觸式編碼器2為使用光學偵測器的光學編碼器，但亦可為使用霍爾效應進行偵測的磁性編碼器。Referring to FIG. 2 and FIG. 3, the non-contact encoder 2 is configured to detect an error amount of the counterweight 1 from the equilibrium state, and output a feedback signal related to the error amount. It should be noted that the non-contact encoder 2 is a code rotating wheel that rotates relative to a detector, and the rotational position of the coded turntable is converted into a potential signal by the detector. Wherein, the detector and the coded turntable do not contact each other, so there is no problem such as failure or sensitivity reduction due to wear of the parts. Moreover, since the balance wheel 12 does not rotate more than one turn with respect to the non-contact encoder 2, the absolute position of the balance wheel 12 can be obtained whether it is an incremental encoder or an absolute encoder. As a feedback signal for controlling the rotational speed of the motor 522. In the embodiment, the non-contact encoder 2 is an optical encoder using an optical detector, but may also be a magnetic encoder that uses a Hall effect for detection.

參閱圖3，該回授控制器3用以根據該回授信號，而對該馬達522輸出一控制信號。Referring to FIG. 3, the feedback controller 3 is configured to output a control signal to the motor 522 according to the feedback signal.

參閱圖2與圖3，該開關單元4包括一裝設於該平衡輪12下方的開關41，及一命令控制器42。在本實施例中，該開關41為一限位開關，但亦可為一微動開關。Referring to FIG. 2 and FIG. 3, the switch unit 4 includes a switch 41 mounted under the balance wheel 12, and a command controller 42. In this embodiment, the switch 41 is a limit switch, but may also be a micro switch.

藉此，當該線切割機啟動時，該馬達522隨著啟動而運轉。此時，由於該切割線51不斷地由該供線輪521轉出，使該切割線51張力下降而不足以支撐該平衡輪12，因此，該平衡輪12會向下掉落而觸碰到該開關41。此時，該命令控制器42向該回授控制器3輸出一命令信號，以啟動該回授控制器3對該馬達522輸出該控制信號，以維持該平衡錘1處於該平衡狀態。在控制的過程中，由於該非接觸式編碼器2會偵測到該平衡輪12的絕對位置是相較低於水平線，表示該馬達522的轉速超前，因此，該控制信號會使該馬達522轉速下降，而使該切割線51張力提升至支撐起該平衡輪12；另外，隨著該供線輪521的輪徑逐漸變小，將使得該馬達522轉速落後，造成該切割線51的張力逐漸變大，因而抬升該平衡輪12，使該非接觸式編碼器2偵測到該平衡輪12的絕對位置是相較高於水平線，因此該控制信號會使該馬達522轉速上升，而使該切割線51張力下降至該平衡輪12維持在該平衡狀態。其中，當該切割線51用完或斷裂時，該平衡輪將失去該切割線51的張力支撐，而又再次向下掉落而觸碰到該開關41。此時，該命令控制器42便向該馬達522輸出另一命令信號，使該馬達522停止運轉，並停止該線切割機加工，或是發出警報提醒操作者。Thereby, the motor 522 operates with activation when the wire cutter is activated. At this time, since the cutting line 51 is continuously turned out by the supply reel 521, the tension of the cutting line 51 is lowered and is not enough to support the balance wheel 12, and therefore, the balance wheel 12 is dropped downward and touched. The switch 41. At this time, the command controller 42 outputs a command signal to the feedback controller 3 to activate the feedback controller 3 to output the control signal to the motor 522 to maintain The counterweight 1 is in this equilibrium state. In the process of control, since the non-contact encoder 2 detects that the absolute position of the balance wheel 12 is lower than the horizontal line, indicating that the rotation speed of the motor 522 is ahead, the control signal will cause the motor 522 to rotate. Decreasing, the tension of the cutting line 51 is raised to support the balance wheel 12; in addition, as the wheel diameter of the supply wheel 521 becomes smaller, the rotation speed of the motor 522 will be delayed, causing the tension of the cutting line 51 to gradually Increasingly large, thereby raising the balance wheel 12, so that the non-contact encoder 2 detects that the absolute position of the balance wheel 12 is higher than the horizontal line, so the control signal will increase the speed of the motor 522, and the cutting The tension of the wire 51 is lowered until the balance wheel 12 is maintained in the equilibrium state. Wherein, when the cutting line 51 is used up or broken, the balance wheel will lose the tension support of the cutting line 51, and will fall down again to touch the switch 41. At this time, the command controller 42 outputs another command signal to the motor 522 to stop the motor 522 and stop the wire cutter processing, or issue an alarm to alert the operator.

綜上所述，本新型線切割機供線平衡穩定裝置透過該非接觸式編碼器2偵測該平衡錘1的絕對位置，並對該回授控制器3輸出作為控制該馬達522轉速的該回授信號，而使該平衡錘1處於該平衡狀態，藉以維持該切割線51張力，故確實能達成本新型之目的。In summary, the wire balancer supply line balance stabilization device detects the absolute position of the counterweight 1 through the non-contact encoder 2, and outputs the feedback controller 3 as the control of the rotation speed of the motor 522. The signal is applied, and the counterweight 1 is placed in the equilibrium state, thereby maintaining the tension of the cutting line 51, so that the object of the present invention can be achieved.

惟以上所述者，僅為本新型之較佳實施例而已，當不能以此限定本新型實施之範圍，凡是依本新型申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾，皆仍屬本新型專利涵蓋之範圍內。However, the above is only a preferred embodiment of the present invention, and when it is not possible to limit the scope of the present invention, any simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification are It is still within the scope of this new patent.

1‧‧‧平衡錘1‧‧‧Balance hammer

2‧‧‧非接觸式編碼器2‧‧‧ Non-contact encoder

41‧‧‧開關41‧‧‧ switch

51‧‧‧切割線51‧‧‧ cutting line

52‧‧‧供線單元52‧‧‧Power supply unit

53‧‧‧收線單元53‧‧‧Receiving unit

Claims

一種線切割機供線平衡穩定裝置，適用於一線切割機，該線切割機包括一切割線、一供線單元，及一用以捲收該切割線的收線單元，該供線單元具有一供線輪，及一帶動該供線輪，以捲出該切割線的馬達，該裝置包含：一平衡錘，裝設於該供線單元與該收線單元之間，並受該切割線的牽引，而在一平衡狀態與一非平衡狀態之間擺動；一非接觸式編碼器，用以偵測該平衡錘狀態，並輸出一回授信號；及一回授控制器，用以根據該回授信號，而對該馬達輸出一控制信號，使該平衡錘維持在該平衡狀態。 A wire cutting machine supply line balance stabilization device is suitable for a wire cutting machine, the wire cutting machine comprises a cutting line, a supply line unit, and a take-up unit for winding the cutting line, the supply line unit has a a supply reel, and a motor that drives the reel to unwind the cutting line, the device includes: a counterweight, is disposed between the supply unit and the take-up unit, and is subjected to the cutting line Traction, swinging between an equilibrium state and an unbalanced state; a non-contact encoder for detecting the state of the counterweight and outputting a feedback signal; and a feedback controller for The signal is fed back and a control signal is output to the motor to maintain the counterweight in the equilibrium state.

如請求項1所述的線切割機供線平衡穩定裝置，還包含一開關單元，該開關單元在該馬達啟動後，首次被該平衡錘碰觸時，便啟動該回授控制器對該馬達輸出該控制信號，而被該平衡錘再次碰觸時，便關閉該馬達，並停止該線切割機加工。 The wire cutter supply line balance stabilization device according to claim 1, further comprising a switch unit that activates the feedback controller to the motor when the motor is first touched by the balance hammer after the motor is started. When the control signal is output and the hammer is touched again, the motor is turned off and the wire cutter is stopped.

如請求項2所述的線切割機供線平衡穩定裝置，其中，該開關單元包括一開關及一命令控制器，該命令控制器偵測到該開關受到該平衡錘碰觸時，根據被碰觸的次數而選擇向該回授控制器或是該馬達輸出一命令信號。 The wire-cutting machine supply line balance stabilization device according to claim 2, wherein the switch unit comprises a switch and a command controller, and the command controller detects that the switch is touched by the counterweight, according to being touched The number of touches is selected to output a command signal to the feedback controller or the motor.

如請求項3所述的線切割機供線平衡穩定裝置，其中，該開關可為限位開關或微動開關其中之一。 The wire cutter supply line balance stabilization device according to claim 3, wherein the switch is one of a limit switch or a micro switch.

如請求項1所述的線切割機供線平衡穩定裝置，其中，該平衡錘包括一桿件、一裝設於該桿件一端的平衡輪，該非接觸式編碼器裝設於該桿件另一端，該平衡輪受到該切割線的牽引，而使該桿件相對於該非接觸式編碼器在該平衡狀態與該非平衡狀態之間擺動，在該平衡狀態時，該桿件呈一水平擺置。 The wire cutting machine supply line balance stabilization device according to claim 1, wherein The counterweight includes a rod member, a balance wheel mounted on one end of the rod member, the non-contact encoder is mounted on the other end of the rod member, and the balance wheel is pulled by the cutting line, so that the rod member is opposite The non-contact encoder swings between the equilibrium state and the unbalanced state, and in the balanced state, the rod is horizontally placed.

如請求項5所述的線切割機供線平衡穩定裝置，其中，該非接觸式編碼器為一種光學編碼器。 The wire cutter supply line balance stabilization device according to claim 5, wherein the non-contact encoder is an optical encoder.

如請求項6所述的線切割機供線平衡穩定裝置，其中，該非接觸式編碼器可偵測該平衡錘偏離該平衡狀態的一誤差量，並輸出相關於該誤差量的該回授信號。 The line cutter supply line balance stabilization device according to claim 6, wherein the non-contact encoder detects an error amount of the counterweight from the equilibrium state, and outputs the feedback signal related to the error amount. .

如請求項1所述的線切割機供線平衡穩定裝置，其中，該控制信號用以控制該馬達轉速，以改變該供線輪捲出該切割線的速度，進而調整該切割線的張力大小，讓該平衡錘藉由該切割線的張力而維持在該平衡狀態。 The wire cutter supply line balance stabilization device according to claim 1, wherein the control signal is used to control the rotation speed of the motor to change the speed at which the supply wire winds out the cutting line, thereby adjusting the tension of the cutting line. The balance weight is maintained in the equilibrium state by the tension of the cutting line.