TW534976B - Optical measuring apparatus for measuring objects on machines - Google Patents
Optical measuring apparatus for measuring objects on machines Download PDFInfo
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- TW534976B TW534976B TW90101781A TW90101781A TW534976B TW 534976 B TW534976 B TW 534976B TW 90101781 A TW90101781 A TW 90101781A TW 90101781 A TW90101781 A TW 90101781A TW 534976 B TW534976 B TW 534976B
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534976 五、發明說明(i) 本發明係有關一種亦與、、目丨丨旦# (例如機床)決定物件相=於^置其致能協調定位機器 機床用於機床設定操作。' 點的位置。例如可採用於 已知用於機床的機床設定裝置一 束入射於偵測器上。於嫵 …^括先源其產生一細光 於橫過光束傳播方向之方Λ:^刼作期間,機器被作動而 信號,觸發信號由來於偵測單元產生觸發 置俾決定機床的維度。此 ;、移動中的部件之相對位 42 385 04及D.E 42 448 由德國專利案第肫 歐洲專利案第98,93〇號以及美國專=2: 3 555。 為已知。裝置另外可用於測量床,,5 7诡 的斷裂或磨耗。 機床長度或直徑俾監控機床 前述專利說明書揭示的裝置使 中。偵測單元係由入射該單元==通” 床聞進光束内•。觸發信號可於: = 測何時機 该測器上的光強度產生預定下降而先束¥由於落在 此種光學測量裝置發生一 能於測量操作期間滴落通過光束,、;:器使用的冷卻劑可 進入,束而產生假觸發信號。或拋擲離旋轉中的機床 目前使用克服此項問題之方法俜 軟體俾執行若干測量直到 規劃機隨制器的 叫,内為止。然後假設機床位置為此等 534976 五、發明說明(2) 期時間無法接受的延長。 本發明尋求改善此項問題,經由提供一種測量方法其可 '別,正機床谓測信號輿冷卻劑滴落產生的信號。 艮據本發明之一特徵方面,提供一種使用一光學測量裝 —機床上物件作測量之方法,該裝置包栝/光源其產生 —ί光入射於偵測器上,該方法包含下列梦驊·· 母次於光束被中斷時,於偵測器内部產生/偵測信號; =估該摘f信號之發生頻率及/或持續時間; 有於距洳一偵測信號產生的規定時間間隔,於偵測器 f在有另一偵測信號,才由偵測器發出〆輸出信號。 偵測信號的時序可以多種方式達成。 本發明之一具體實施例中,機床較佳係以已知特定速度 轉。如此當機床的切削緣中斷光束時,於偵測器内部產 ΐΐΓΓ序信號。該等信號中第一信號的產生用來初始化 之一計時順序,其設定一段時間間隔⑹實質 的一次迴轉所耗時間,接著為第二時間間隔 床2 :1 比(1:1)更短。若於積測器產生信號者為機 機床的切削緣再度轉回時於時間間隔(t2)將產生 =發生ί,,則谓測器發出輸出信號。 其發出與機床旋轉速度同步的持二二用=開始一¥脈, 於此種脈衝期間於偵測器内部產生篦:&衝。再度若 器發出輸出信號。當伯測器產生盆读;=號’貝“貞測 揭序啟動’而若於其次脈衝期間侦測器;;生第534976 V. Description of the invention (i) The present invention relates to a type of machine that is also used to determine the phase of an object (such as a machine tool). 'Point location. For example, a beam set on a detector may be used in a machine setting device known for a machine tool. Yu… ^ includes the first source which generates a thin light Λ: ^ across the direction of the beam propagation direction. During the operation, the machine is actuated to signal. The trigger signal is generated by the detection unit to generate the trigger setting to determine the dimension of the machine. This ;, the relative position of the moving parts 42 385 04 and D.E 42 448 by the German patent case 肫 European patent case number 98,93, and the United States = 2: 3 555. Is known. The device can also be used to measure bed, 5 7 cracks or wear. The length or diameter of the machine tool monitors the machine tool. The detection unit is incident into the unit == 通 ”The bed smells into the light beam. The trigger signal can be at: = when the light intensity on the tester has a predetermined decrease and the first beam is due to falling on this optical measuring device Occurs when a beam can be dripped through the beam during the measurement operation, the coolant used by the device can enter, and the beam can generate a false trigger signal. Or throw away from the rotating machine tool currently using methods to overcome this problem (software) to perform several Measure until the planning machine follows the call of the controller. Then suppose that the position of the machine tool is 534976. V. Invention Description (2) The period is unacceptably extended. The present invention seeks to improve this problem by providing a measurement method which can 'In addition, the positive machine tool measures the signal generated by the coolant dripping. According to a characteristic aspect of the present invention, a method for measuring using an optical measuring device-object on the machine tool is provided. —The light is incident on the detector, and the method includes the following nightmare: · When the beam is interrupted, the signal is generated / detected inside the detector; The frequency and / or duration of the occurrence; the detector outputs a signal when there is another detection signal at a predetermined time interval from the detection of the first detection signal. The timing can be achieved in a variety of ways. In a specific embodiment of the present invention, the machine tool preferably rotates at a known specific speed. In this way, when the cutting edge of the machine tool interrupts the beam, a ΐΐΓΓ sequence signal is generated inside the detector. Among these signals, The generation of the first signal is used to initialize a timing sequence, which sets the time required for a period of time to make a substantial revolution, and then the second time interval bed is shorter than 2: 1 (1: 1). The device that generates a signal is the time when the cutting edge of the machine tool is turned back again and the time interval (t2) = occurs. Then, the tester sends out an output signal. It sends a dual-purpose that is synchronized with the rotation speed of the machine tool. ¥ pulse, 此种: & rush is generated inside the detector during this pulse. Once again, the device sends an output signal. When the primary detector generates a basin reading; Detector during pulse ;; Health
第7頁 534976 五、發明說明(3) 號則各時脈停止。 光 本發明+ ~ 源用以產生=占執行該方法之光學測量裝置,其包含 斷時產生—^束及一偵測器用以接收光束,而當光束被中 於光束被;該編包括-偵測電路其每次 出現頻率及/或持續時間,以及唯有於出現 二俏別彳i。^發生後的一段規定時間内由偵測電路產生第 一银=t唬,則該信號處理裝置才發出一個輸出信號 5在參照附圖舉例說明本發明之實例,附圖中: 3 =根據本發明之光學測量裝置之透視圖; 圖2為圖1偵測器輸出之代表圖;以及 圖3為方塊圖表示裝置之基本元件; 圖4以線4a至4ί說明於偵測器之信號處理電路各部件產 生的信號。 。。現在參照圖1,以組裝後的形式顯示光學測量裝置其係 1作作為機床設定裝置適用於例如機床上。該裝置包括一 發光單元1 〇其發射光束丨2,以及一光偵測單元丨4,於該處 偵測光束12。光發射及偵測單元1〇、14之電源線以及信號 控,纜線路由通過進入埠口丨6,二單元丨〇、丨4較佳經由柱 j安裝於機器底座上,可透過中間底座2〇而安裝,或直接 女裝至其預備採用的機器底座上。 操作時,裝置用於機床設定,係Page 7 534976 V. Description of the Invention (3) The clock stops at each clock. The invention + ~ source is used to generate = account for the optical measurement device that executes the method, which includes an off-beam and a detector to receive the light beam, and when the light beam is in the light beam; the editor includes-detection Test the frequency and / or duration of each occurrence of the circuit, and only if it appears twice. ^ The first silver = tbl is generated by the detection circuit within a specified period of time after the occurrence, and then the signal processing device sends an output signal. 5 An example of the present invention is illustrated with reference to the accompanying drawings, in which: 3 = according to the present Perspective view of the invention's optical measuring device; Figure 2 is a representative diagram of the detector output of Figure 1; and Figure 3 is a block diagram showing the basic components of the device; Figure 4 illustrates the signal processing circuit of the detector with lines 4a to 4 Signals generated by each component. . . Referring now to FIG. 1, an optical measuring device is shown in an assembled form. The optical measuring device is suitable as a machine tool setting device, for example, on a machine tool. The device includes a light emitting unit 10 which emits a light beam 2 and a light detection unit 4 where a light beam 12 is detected. The power lines and signal control of the light transmitting and detecting units 10 and 14 and the cable lines pass through the port 丨 6, the two units 丨 0 and 丨 4 are preferably installed on the machine base through the pillar j, and can be passed through the intermediate base 2 〇 And install, or directly wear women's clothing on the base of the machine to be used. During operation, the device is used for machine setting.
,機器而於橫過光束12傳播方向之方向移動=裝K 預定的光束阻隔程度時,偵測單元14發出觸發信號,索, The machine moves in the direction across the propagation direction of the light beam 12 = when the predetermined beam blocking degree of K is installed, the detection unit 14 sends a trigger signal,
第8頁 534976 五 一、發明說明(4) 觸發信號由機器用來決定其相對移動部件的相對位置,藉 此決定機床的維度。 此種裝置範例之進一步機械及光學細節述於發明人之歐 洲專利申巧案第〇 〇 3 3 7 4 9 · 6號(併述於此以供參考),因此 不再複述。 圖2顯示偵測器於各種情況下的輸出。當光束被阻隔至 預定,度時*電壓脈衝顯示’偵測器的輸出走高(亦即 / 如該圖左側第一脈衝S1可知,當冷卻劑 滴洛通過先束時也可能發生此種情況。 =於第一種情況下,冷卻劑滴 短時間脈衝。 干 争忏,屋生早一 S2 U :斷光束時也有一段短時間脈衝 其它切削緣依序打斷光束ς = :j或當多緣切削工具的 一個脈衝)。 ^產生其匕脈衝S3(圖中僅顯示 為了識別滴落阻p 的差異(此乃測量切^丨/、刀削工具邊緣首次阻隔光束間 f剛器的計時器須债測的情況)’本發明提供 ^ Ι。特定具體每# h丄 仏唬同時設定第一時間 欠迴轉所耗時::歹,中士 ’時間間隔I設置成等於工具 这的時間間隔t。、曰。於時間間隔ti終點,計時器設定更 偉剛器政、目2士 2液滴時該作::間隔t2作為第二偵測信·,若第-信號 偵㈣。若;:有:能ΐ現:可由輪出信號的高態或上升Page 8 534976 V. I. Description of the invention (4) The trigger signal is used by the machine to determine the relative position of its relative moving parts, thereby determining the dimensions of the machine tool. Further mechanical and optical details of such a device example are described in the inventor's European Patent Application No. 03 3 7 4 9 · 6 (and are hereby incorporated by reference) and will not be repeated here. Figure 2 shows the output of the detector under various conditions. When the light beam is blocked to a predetermined degree, the output voltage of the * voltage pulse display 'detector goes high (that is, / as can be seen from the first pulse S1 on the left side of the figure, this situation may also occur when the coolant Diluo passes through the first beam. = In the first case, the coolant drops pulse for a short time. Conflicts, Yasaka S2 U: There is also a short time pulse when the beam is broken. Other cutting edges interrupt the beam in sequence. A pulse of the cutting tool). ^ Generate its dagger pulse S3 (the figure only shows the difference in order to identify the drop resistance p (this is the measurement of cutting ^ 丨 /, the edge of the cutting tool for the first time blocking the f rigid device between the beam must be tested) The invention provides ^ I. Each specific # h bluffs to set the first time to slewing at the same time :: 歹, sergeant 'time interval I is set equal to the time interval t of the tool. At the end, the timer is set to be more powerful, and the head 2 is 2 droplets. This is :: The interval t2 is used as the second detection signal. If the-signal is detected. If; High state or rise of the signal
一债測信號’則偵測器於時間間隔t2 534976 五、發明說明(5) 結束時發出「跳過」信號或觸發信號。 由於時間間隔及t2準確已知,故可算出由於工具的切 削緣遮掩光束導致偵測器輸出第一上升緣發生的瞬間。 為了計算時序,須設定機器心軸轉速因而設定切削工 具。為了保持測量操作時間低至合理程度,實驗期間,心 軸速度設定為1 0 0 0 rpm故1^名目為60毫秒。但時間間隔t2 須夠大俾迎合心軸速度的些微變化例如至多5 %,造成六有 3毫秒的改變。 為了將觸發信號對中於時間間隔t2,設定於t +1 / 21的t 須等於6 0毫秒。如此ti確實設定於5 8 · 5毫秒。 測量前’工具轉速無需為已知,原因在於工具轉速可經 由债測器產生的多脈衝順序中之首二連續脈衝的上升緣間 距計時測量。然後時間間隔(t)設定於第二與第三上升緣 間’以及(& )由第三上升緣計時。 本發明裝置之基本元件以 發射器1 0之光束丨2進入偵測 電偵測器而當光束被中斷時 仏號通過信號處理器7 4,信 計時裝置。偵測器輸出信號 住機,評估機器刻度讀數 士圖4說明替代具體實施例〗 打脈,各個時脈產生一系列 光束被中斷而初始化; 圖4a顯示經由齒與液滴的 々桃_瓜忒顯不於圖;j。來自 器1 4,其衝擊偵測電路7 2的光 產生信號。偵測電路72產生的 號處理器包括信號分析需要的 直接送至機器控制器8 0,其停 而決定機器所在位置。 八 其中於偵測器使用一或多個 脈衝,由偵測器發出信號指示 混合中斷光束引發一系列事件For a debt test signal ’, the detector sends a“ skip ”signal or trigger signal at the end of the time interval t2 534976. 5. Description of the invention (5). Since the time interval and t2 are accurately known, the instant at which the first rising edge of the detector output occurs due to the obscuration of the beam by the cutting edge of the tool can be calculated. To calculate the timing, the spindle speed of the machine must be set and the cutting tool must be set. In order to keep the measurement operation time as low as possible, during the experiment, the spindle speed was set to 1000 rpm, so the 1 ^ name was 60 milliseconds. However, the time interval t2 must be large enough to cater for small changes in spindle speed, such as at most 5%, resulting in a change of 3 milliseconds. In order to center the trigger signal at time interval t2, t set at t + 1/21 must be equal to 60 milliseconds. So ti is indeed set at 5 8 · 5 ms. Before measurement, the tool speed does not need to be known because the tool speed can be measured by the rising edge interval timing of the first two consecutive pulses in the multi-pulse sequence generated by the debt detector. The time interval (t) is then set between the second and third rising edges' and (&) is timed by the third rising edge. The basic element of the device of the present invention enters the electrical detector with the light beam of transmitter 10 and enters the electrical detector. When the light beam is interrupted, the signal passes through the signal processor 7 4 and signals the timing device. Detector output signal stays on the machine, and evaluates the machine's scale reading. Figure 4 illustrates an alternative embodiment. Pulsed, each clock generates a series of light beams that are interrupted and initialized. Figure 4a shows the peach_melon through the teeth and droplets. Is not shown in the figure; j. The light from the device 14 and its impact detection circuit 72 generates a signal. The number processor generated by the detection circuit 72 includes the signals needed for signal analysis and sends them directly to the machine controller 80, which stops to determine the location of the machine. Eight Where one or more pulses are used in the detector, the detector sends a signal to indicate that a mixed interruption of the beam causes a series of events
第10頁 534976Page 10 534976
之例; 圖4b顯示此等事件形成的信號於偵測器信號處理器被 成比較器輸出的脈衝; 圖4 c顯示使用單一時脈時與偵測器發生的情況; 圖4d顯示使用第二時脈時與偵測器發生的情況; 圖4e及4f分別顯不組合比較器輸出與時脈}及時脈2輪 之結果。 由圖4a可知.發生液滴而中斷光束為隨機之時間間隔,但 工具邊緣造成光束中斷係以規則時間間隔發生。各光束中 斷係以加編號.的事件E標示。 圖4b顯示對應該等事件之比較器輸出脈衝。 圖4c顯不當事件E1發生時啟動第一時脈,但當第二時脈 脈衝送到#號比較器時並未發生任何事件故該時脈停止。 當發生事件E3(亦為液滴)時再度啟動時脈,但其第二脈衝 係出現於事件E4與E5間而未見事件E4故停止時脈。當時脈 於事件E5再度啟動時情況亦同。唯有於事件E7再度啟動時 脈衝係與工具切削緣於事件E 9切斷光束的發生同步,因此 於事件E7將產生觸發信號。此信號錯過切削緣於£6初次中 斷光束因而產生錯誤的讀數。 但如圖4d所示使用二時脈的具體實施例,第二時脈將於 事件E 6時啟動’原因在於當時第一時脈正在運轉。由於事 件E 6為切削工具緣造成光束的中斷,因此時脈脈衝產生時 將發生另一事件E7。信號處理器將辨識該時脈脈衝,事件 現在變成同步’且將於脈衝的上升緣產生觸發信號。由於Figure 4b shows the signals generated by these events when the detector signal processor is used as a comparator output pulse; Figure 4c shows what happens to the detector when a single clock is used; Figure 4d shows the use of a second clock What happens to the clock time and the detector; Figures 4e and 4f show the results of the combination of the comparator output and the clock} and the clock 2 rounds, respectively. It can be seen from Figure 4a that the interruption of the beam at random intervals occurs when droplets occur, but the interruption of the beam caused by the edge of the tool occurs at regular intervals. Each beam interruption is marked with a numbered event E. Figure 4b shows the comparator output pulses corresponding to these events. Figure 4c shows that the first clock is started when the event E1 occurs, but when the second clock pulse is sent to the # comparator, no event occurs and the clock stops. When the event E3 (also a droplet) occurs, the clock is started again, but the second pulse appears between the events E4 and E5 and the clock is stopped without the event E4. The situation was the same when Event E5 was reactivated. Only when event E7 is restarted, the pulse system is synchronized with the cutting of the tool due to the event E 9 cutting off the beam, so a trigger signal will be generated at event E7. This signal misses the cutting edge due to the initial interruption of the beam at £ 6 and thus produces an erroneous reading. However, as shown in FIG. 4d, in the specific embodiment using the second clock, the second clock will be started at the event E6 'because the first clock is running at that time. Since event E 6 is the interruption of the beam by the edge of the cutting tool, another event E 7 will occur when the clock pulse is generated. The signal processor will recognize the clock pulse, the event is now synchronized 'and a trigger signal will be generated on the rising edge of the pulse. due to
534976 五、發明說明(7) 時脈脈衝的產生於光克 中 次光束中斷日以的中斷為同步,故容易決定何時發 雜緣引起則情況變成較不複 同:事件故於該時間引發一個觸發信號。 ]將了解為 若介於第一事件與第二事件 \ 目,丨、士姑 士 所忽略,原、因在於,ή::門^現液滴’則被第-時脈 種产π τ ^ $收月况於弟—脈衝期間未發生。如此此 種&况下,_液滴將不影響觸發信號的產生。 相^然已經使用—具或兩具時脈說明本發日月,作若使用多 個時脈而蚊在不同頻率則可獲得其它效果。使用夕 =裝!可使用不同的心軸旋轉速度而無需再度設定原 液凉H柃序,額外時脈將允許裝置處理預期會產生大量 的情況,的時脈數目須; 處理所需要的耗費間作折衷。 销外仏唬 ::具未旋轉而於工具設定期間預 徑或作卫具斷裂偵測時 广長度次直 中,工且相掛於杏由 本發明。此種具體實施例 侦測器產生的信號用來啟動信號 偵Λ器Λ輪出。若當時谓測器的輸出仍為 表不仏號仍;、、、' 存在,則信號處理器產生觸 又另-具體實施例中,信號處理器結合χ:: 別同步事件。纟置的輸入為規則時間拙3,,農置識 儲存於具有固定長度的緩衝器,❹ U樣樣本 緩衝器可使用移位暫存器實施,#次 盖二=哭534976 V. Description of the invention (7) The clock pulse is generated by the interruption of the light beam in the middle of the light g. The interruption is synchronized, so it is easy to decide when the miscellaneous cause is caused, and the situation becomes more different: the event triggers a Trigger signal. ] It will be understood that if it is between the first event and the second event, it is ignored by the scholars and princes. The reason is that the price :: 门 ^ present droplets' is produced by the first-clock species π τ ^ $ 收 月 况 于 brother-pulse did not occur during the pulse. Under such conditions, the droplet will not affect the generation of the trigger signal. It has already been used—with or with two clocks to explain the current sun and moon. If multiple clocks are used and mosquitoes at different frequencies can obtain other effects. Use Xi = Outfit! Different mandrel rotation speeds can be used without having to set the original liquid cooling sequence again. The extra clock will allow the device to handle a large number of situations that are expected to occur. The number of clocks must be compromised. Pin-out bluffing: When the tool is not rotated, it is pre-calibrated during the setting of the tool or used to detect the breakage of the protective device. In this specific embodiment, the signal generated by the detector is used to start the signal. If the output of the tester at that time is still the same as the suffix; ,,, 'exist, the signal processor generates a touch-in another embodiment-in a specific embodiment, the signal processor combines χ :: Don't synchronize events. The input of the default setting is the regular time.3, the farmer's knowledge is stored in a buffer with a fixed length, and the U-like sample buffer can be implemented using a shift register. # 次 Cover two = cry
第12頁 534976 五、發明說明(8) 監視^測器的輪出且將其電流態寫入移位 器係跨二位元組分裂,則經由比較兩半可 的測試。例如若拙樣速率為工具轉速 成:重稷圖樣 移位通過兩部8位元暫存器,當 σ各抽樣結果 的第:晶格顯示為高⑴。樣本移於暫存器 第一半的第一晶格内部為止。若 、暫存器直到進入 同步事件則樣本通過暫存器杜束7 L過暫存器若未發生 入暫存器第二半的第一晶格、i,於ί若恰在第一樣本移動 格接收到另一個高樣本,則兩再存器第一半的第一晶 信號。 度變相同以及發出觸發 已經參照於機床去除光學測量 發明,但可使用其它形式的光學演j旦之假觸發信號說明本 上作更寬廣應用。因此本發明之a =裝置與其它類型機器 專利範圍界定。 乾圍須視為由隨附之申請Page 12 534976 V. Description of the invention (8) Monitoring the rotation of the detector and writing its current state to the shifter is split across two bytes, and then the test is compared by comparing the two halves. For example, if the sample rate is the speed of the tool, the weighting pattern is shifted through two 8-bit registers, and when the: lattice of each sampling result of σ is displayed as high frame. The sample is moved inside the first lattice of the first half of the register. If, register until the synchronization event is entered, the sample is passed through the register. Duo 7 L passes the register. If the first lattice, i of the second half of the register does not occur, Yu Lin is in the first sample. When the moving grid receives another high sample, the first crystal signal of the first half of the two re-registers. The same degree of change and triggering have been referenced to the invention of removing the optical measurement of the machine tool, but other forms of optical triggering can be used to explain the broader application. Therefore, the scope of patent of a = device and other types of machines of the present invention is defined. Qianwei shall be treated as an accompanying application
Claims (1)
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GB0020929A GB0020929D0 (en) | 2000-08-25 | 2000-08-25 | Optical measuring apparatus for measuring tools on machine |
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TW534976B true TW534976B (en) | 2003-06-01 |
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TW90101781A TW534976B (en) | 2000-08-25 | 2001-01-30 | Optical measuring apparatus for measuring objects on machines |
TW90102799A TW530153B (en) | 2000-08-25 | 2001-02-08 | Spectroscopic probe |
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TW90102799A TW530153B (en) | 2000-08-25 | 2001-02-08 | Spectroscopic probe |
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ES2912525T3 (en) * | 2017-12-22 | 2022-05-26 | Ldi Finances | Three-dimensional target with double structure, device and optical measurement procedure with said target |
CN114227353B (en) * | 2022-02-23 | 2022-05-10 | 江苏捷威特工程机械有限公司 | Reverse-exploration type machining device based on photo-fragmentation flow direction positioning |
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2000
- 2000-08-25 GB GB0020929A patent/GB0020929D0/en not_active Ceased
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2001
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TW530153B (en) | 2003-05-01 |
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