100年.12月19日按正_«頁 1362480, 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一定位裝置，尤其係關於一種用於精密機 械中之光學式定位裝置。 【先前技術】 [0002] 一般機械中之定位裝置分爲靜態定位裝置及動態定位裝 置兩種，靜態定位裝置通常藉由光電開關、極限開關等 實現，即精密機械中運動平台抵達相應開關時實現定位 ，該種定位裝置通常不能實現實時位置監控，故其不能 滿足多位置控制之實際需要。動態定位裝置通常藉由一 位移感測元件來實現定位，而精密機械多以光學尺作爲 位置感測器，配合伺服控制器及CNC控制器來實現定位。 [0003] 光學尺係利用光電晶體與光感測器組合構成之光學編碼 器與光學繞射效應製成，通常，光學尺包括一光學感測 器、一刻畫有狹縫之玻璃主尺及一組訊號讀取頭，光學 尺之光學編碼器係與移動物件一起運動，當物體移動時 光源亦一起移動，光源透過主尺時產生繞射，藉由讀取 繞射條紋之數目便可經由轉換算出物體移動量。然，光 學尺實際使用時會因位置差異而產生較大誤差，此外當 於機械設備中時會因加工環境之惡化及切削液之污染使 光學尺毁損，如此難以達到精密機械所需之精確定位。 【發明内容】 [0004] 鑒於以上内容，有必要提供一種受環境影響較小、定位 準確之光學式定位裝置。 [0005] 一種光學式定位裝置，其包括一光源發生器、一反射裝 094136007 表單編號A0101 第3頁/共10頁 1003467173-0 1362480 100年.12月19日按正替读頁 置及一光接收器，該光源發生器設置於一機械平台上， 用以產生一光線，該反射裝置用以反射光源發生器所產 生之光線，該光接收器包括至少一線性感測元件，該線 性感測元件接收反射裝置所反射之光線。 [0006] 相較習知技術，所述光學式定位裝置藉由一反射裝置及 至少一光接收器可實現精密機械所需之精確定位，且受 環境影響較小。 【實施方式】 [0007] 請參閱第一圖，本發明較佳實施方式之光學式定位裝置 包括一機械平台10、一反射裝置20、一光接收器30及一 驅動部件40。 [0008] 機械平台10為方形平台，該平台10下方具有一配合結構（ 圖未示），該機械平台10兩側各設置有一光源發生器101 ，該光源發生器101為一可發射準直光線之光源，例如鐳 射光源，且本施例中光線水平射出。 [0009] 反射裝置20為二反射鏡，其分別設置機械平台10之兩側 ，且相對機械平台具有一傾斜角度0，本實施例中以0 為45度為例，該反射裝置20用以反射光源發生器101所發 出之光線。 [0010] 光接收器30包括設置於機械平台10—端兩側之二線性感 測元件，該二線性感測元件可為二線性CCD ( Charge Coupled Device即电荷耦合器件），該二線性CCD亦可 連為一整體線性CCD。該線性CCD接收經由反射裝置20反 射之光線。另，該光接收器30還與一處理器（圖未示） 094136007 表單編號A0101 第4頁/共10頁 1003467173-0 100年.12月19日 相連，其可根據入射光線於線性CCD上所處位置計算出機 械平台10所處位置，並將該訊息反饋給驅動部件40。 驅動部件40包括一螺桿結構401、一驅動馬達4〇2及一控 制器（圖未不）。該螺桿結構4〇1與機械平台1〇之相應結 構配合，驅動馬達402與螺桿結構4〇1—端相連，控制器 與驅動馬達402相連，其可接收光接收器3〇所反饋之關於 機械平台10之位置訊號。 工作時，機械平台10兩側之光源發生器1〇1發出一準直光 線，該準直光線照射至反射裝置2〇，該反射裝置2〇將光 線反射至該光接收器30，與該光接收器3〇相連之處理器 根據入射光線於線性CCD上所處位置可計算出機械平台1〇 所處位置，假設於本實施例中，機械平台1〇之位置移動 量為K ’而光線於線性CCD上之移動量l，由於0為45度’ 光線水平射出，故L=K，即機械平台1〇之位置移動量與光 線於線性CCD中之移動量L相等，同理，當0為其它角 度時，根據三角形數學原理亦可計算出機械平台1〇之位 置移動量K與光線於線性CCD中之移動量l之相互關係，且 可藉由反射裝置20傾斜角度0之調整使l相對κ放大或縮 小，以滿足不同之實際需要。當與光接收器3〇相連之處 理器計算出機械平台10之位置移動量後，由此可確定機 械平台10所處位置，然後將機械平台1〇所處位置之訊號 反饋給驅動部件40之控制器，驅動部件4〇之控制器根據 光接收器30歲反饋之訊號控制驅動馬達4〇2運動，進而控 制機械平台10之位置移動量，如此可實現機械平台丨〇之 表單編號A0101 第5頁/共10頁 1003467173-0 1362480 100年.12月19日修正替_頁 精確定位。 [0013] [0014] [0015] [0016] [0017] [0018] [0019] [0020] [0021] 094136007 相較習知技術，所述光學式疋位裝置藉由—反射裝置 及一光接收器30<實現精在、機械所需之精確定位，且受 環境影響較小。 可以理解，機械平台10不限於方形平台，亦可為其它形 狀，光源發生器1〇1所發出之光線亦可傾斜射出，該光接 收器30之線性感測元件不限於線性CCD，亦可以其它線性 感測元件’例如CMOS (Complementary Metal-Oxide Semiconductor ’互補金屬氧化物半導體）線性感測元 · 件。 综上所述，本發明符合發明專利要件，爰依法提出專利 申清。惟’以上所述者僅為本發明之較佳實施例，舉凡 熟悉本案技藝之人士，在援依本案發明精㈣作之等效 修佛或變化，皆應包含於以下之中請專利範園内。 【圖式簡單說明】 第-圖係本發明光學式定位裝置較佳實施方式之結構示 φ 意圖。 【主要元件符號說明】 機械平台：1 〇 光源發生器：101 反射裝置：20 光接收器：30 驅動部件：40 第6 表單编號Α0101 頁/共10頁 1003467173-0 1362480.100 years. December 19th according to the positive _« page 1362480, six, the invention: [0001] The present invention relates to a positioning device, in particular to an optical positioning in precision machinery Device. [Prior Art] [0002] The positioning device in the general machine is divided into two types: a static positioning device and a dynamic positioning device. The static positioning device is usually realized by a photoelectric switch, a limit switch, etc., that is, when the motion platform reaches the corresponding switch in the precision machine Positioning, such positioning devices generally cannot achieve real-time position monitoring, so they cannot meet the actual needs of multi-position control. The dynamic positioning device usually realizes positioning by a displacement sensing component, and the precision mechanical machine uses the optical ruler as a position sensor, and cooperates with the servo controller and the CNC controller to realize positioning. [0003] An optical ruler is made by using an optical encoder composed of a photoelectric crystal and a photo sensor and an optical diffraction effect. Generally, the optical scale includes an optical sensor, a glass main ruler with a slit and a The group signal reading head, the optical encoder of the optical ruler moves together with the moving object, the light source also moves together when the object moves, and the light source generates a diffraction when passing through the main ruler, and the number of the diffraction stripes can be converted by reading Calculate the amount of movement of the object. However, when the optical scale is actually used, it will cause a large error due to the position difference. In addition, when it is used in mechanical equipment, the optical scale is damaged due to the deterioration of the processing environment and the contamination of the cutting fluid, so that it is difficult to achieve the precise positioning required for precision machinery. . SUMMARY OF THE INVENTION [0004] In view of the above, it is necessary to provide an optical positioning device that is less affected by the environment and has an accurate positioning. [0005] An optical positioning device comprising a light source generator, a reflective device 094136007 Form No. A0101 Page 3 / 10 pages 1003467173-0 1362480 100 years. December 19, according to the positive reading page and a light a receiver, the light source generator is disposed on a mechanical platform for generating a light, the reflecting device is configured to reflect light generated by the light source generator, and the light receiver comprises at least one line sensing component, the line sensing component Receiving the light reflected by the reflecting device. Compared with the prior art, the optical positioning device can achieve precise positioning required for precision machinery by a reflecting device and at least one light receiver, and is less affected by the environment. [Embodiment] Referring to a first embodiment, an optical positioning apparatus according to a preferred embodiment of the present invention includes a mechanical platform 10, a reflecting device 20, a light receiver 30, and a driving member 40. [0008] The mechanical platform 10 is a square platform, and has a mating structure (not shown) under the platform 10, and a light source generator 101 is disposed on each side of the mechanical platform 10, and the light source generator 101 is configured to emit collimated light. A light source, such as a laser source, and in this embodiment the light is emitted horizontally. [0009] The reflecting device 20 is a two-mirror mirror, which is disposed on both sides of the mechanical platform 10, and has an inclined angle 0 with respect to the mechanical platform. In this embodiment, the reflection device 20 is used for reflection. Light emitted by the light source generator 101. [0010] The optical receiver 30 includes a two-wire sensing component disposed on both sides of the mechanical platform 10, and the two-wire sensing component can be a two-phase CCD (Charge Coupled Device), and the two-linear CCD is also Can be connected as a whole linear CCD. The linear CCD receives light reflected by the reflecting means 20. In addition, the optical receiver 30 is also connected to a processor (not shown) 094136007 Form No. A0101 Page 4 / 10 pages 1003467173-0 100. December 19, which can be based on incident light on a linear CCD The position of the mechanical platform 10 is calculated and the message is fed back to the drive unit 40. The drive member 40 includes a screw structure 401, a drive motor 4〇2, and a controller (not shown). The screw structure 4〇1 cooperates with the corresponding structure of the mechanical platform 1〇, the driving motor 402 is connected to the screw structure 4〇1-end, and the controller is connected with the driving motor 402, which can receive the feedback of the optical receiver 3〇 The location signal of platform 10. In operation, the light source generator 1〇1 on both sides of the mechanical platform 10 emits a collimated light that is incident on the reflecting device 2〇, and the reflecting device 2〇 reflects the light to the light receiver 30, and the light The processor connected to the receiver 3 计算 can calculate the position of the mechanical platform 1 根据 according to the position of the incident light on the linear CCD. It is assumed that in the embodiment, the position of the mechanical platform 1 移动 is K ′ and the light is The amount of movement on the linear CCD l, since 0 is 45 degrees, the light level is emitted, so L=K, that is, the position shift of the mechanical platform 1〇 is equal to the movement amount L of the light in the linear CCD. Similarly, when 0 is At other angles, according to the mathematical principle of the triangle, the relationship between the positional movement amount K of the mechanical platform and the movement amount l of the light in the linear CCD can be calculated, and the tilting angle 0 of the reflecting device 20 can be adjusted so that l is relatively κ zooms in or out to meet different practical needs. After the processor connected to the optical receiver 3A calculates the positional movement amount of the mechanical platform 10, the position of the mechanical platform 10 can be determined, and then the signal of the position of the mechanical platform 1〇 is fed back to the driving component 40. The controller and the controller of the driving unit 4 control the movement of the driving motor 4〇2 according to the signal of the feedback of the optical receiver 30 years old, thereby controlling the positional movement amount of the mechanical platform 10, so that the mechanical platform 表单 form number A0101 can be realized. Page / Total 10 pages 1003467173-0 1362480 100 years. December 19th revised for _ page precise positioning. [0014] [0016] [0019] [0019] [0020] 094136007 The optical clamping device is coupled by a reflection device and a light receiving device compared to the prior art. The device 30< achieves precise positioning required by the machine, and is less affected by the environment. It can be understood that the mechanical platform 10 is not limited to a square platform, and may be other shapes. The light emitted by the light source generator 101 may also be obliquely emitted. The line sensing component of the light receiver 30 is not limited to a linear CCD, and may be other. A line sensing component such as a CMOS (Complementary Metal-Oxide Semiconductor) wire sensor. In summary, the present invention complies with the requirements of the invention patent, and patents are filed according to law. However, the above description is only a preferred embodiment of the present invention. Anyone who is familiar with the skill of the present invention should be included in the following patents in the following patents. . BRIEF DESCRIPTION OF THE DRAWINGS The first embodiment is a schematic view of a preferred embodiment of the optical positioning device of the present invention. [Main component symbol description] Mechanical platform: 1 光源 Light source generator: 101 Reflector: 20 Optical receiver: 30 Drive unit: 40 No. 6 Form No. Α 0101 Page / Total 10 pages 1003467173-0 1362480.
[0022] 螺桿結構：401 [0023] 驅動馬達：402 10 0年.12月19日修正替換頁[0022] Screw structure: 401 [0023] Drive motor: 402 10 0. December 19 revised replacement page
094136007 表單编號A0101 第7頁/共10頁 1003467173-0094136007 Form No. A0101 Page 7 of 10 1003467173-0