TWI833177B - Intelligent tool holder - Google Patents
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Abstract
Description
本發明係關於一種智慧刀把,且特別是有關於一種將數個感測器裝設於刀把本體內部的智慧刀把。 The present invention relates to a smart knife handle, and in particular, to a smart knife handle with a plurality of sensors installed inside the knife handle body.
在生產製造過程中,刀具扮演著極其重要的角色,刀具數量龐大且應用複雜,使得刀具的使用與管理成為降低生產成本與縮短生產時間的重要因素。現代工廠的發展趨勢,皆朝向自動與智慧化生產方式進行生產,故能即時監控加工狀態與獲得刀具即時資訊,可提升機器設備的稼動率以及產品的競爭力。 In the manufacturing process, cutting tools play an extremely important role. The large number of cutting tools and their complex applications make the use and management of cutting tools an important factor in reducing production costs and shortening production time. The development trend of modern factories is towards automatic and intelligent production methods. Therefore, being able to monitor the processing status and obtain real-time information on cutting tools can improve the utilization rate of machinery and equipment and the competitiveness of products.
就目前的技術而言,可能是將感測機制設計於工具機主軸或工作台的方式,以此即時動態力量感測訊號監控刀具加工狀態,所用感測為應變規式感測器,透過監控特定參數以回饋切削控制的方法,於工作臺與工件之間設置感測器偵測切削力,於夾持具上設置感測器偵測旋轉切削力。 As far as the current technology is concerned, it is possible to design the sensing mechanism on the machine tool spindle or workbench to monitor the tool processing status with real-time dynamic force sensing signals. The sensing used is a strain gauge sensor. Through monitoring Specific parameters are used to feed back the cutting control method. A sensor is set between the workbench and the workpiece to detect the cutting force, and a sensor is set on the fixture to detect the rotational cutting force.
目前技術有以下缺點:裝設形式為粘貼於刀把表面,較有脫落疑慮;感測機制為需要貼附多個應變規進行感測;組裝整合複雜,需配合不同方向和位置粘貼;解耦設計複雜,需藉大量演算法進行分析;準確度較低,各軸向感測易相互干擾;其整體成本高,需貼附約10~12個應變規式感測器。 The current technology has the following shortcomings: the installation method is pasted on the surface of the tool handle, which is more likely to fall off; the sensing mechanism requires multiple strain gauges to be attached for sensing; the assembly and integration are complex and require different directions and positions for pasting; decoupled design It is complex and requires a large number of algorithms for analysis; the accuracy is low, and the sensing in each axis is easy to interfere with each other; the overall cost is high, and about 10 to 12 strain gauge sensors need to be attached.
本發明的目的在於提供一種智慧刀把,係將感測機制的數個量測裝設於刀把本體的連接部內部,透過主動式旋轉角度感測方式,提升感測特性 降低耦合效應,且可偵測加工過程的全域受力情況。 The object of the present invention is to provide a smart knife handle, which installs several measurements of the sensing mechanism inside the connection part of the knife handle body, and improves the sensing characteristics through an active rotation angle sensing method. Reduce coupling effects and detect the full range of stress during the machining process.
本發明的另一目的在於提供一種智慧刀把,係將感測機制的數個量測裝設於刀把本體的連接部內部,透過簡單組裝整合感測資料,準確度高且整體成本低。 Another object of the present invention is to provide a smart knife handle, which installs several measurements of the sensing mechanism inside the connection part of the knife handle body, integrates the sensing data through simple assembly, has high accuracy and low overall cost.
為了達成上述目的,本發明提供一種智慧刀把,包括一刀把本體,該刀把本體包含一連接部,該連接部用以連接一加工刀具,且該連接部上設有複數個內嵌孔,且該些內嵌孔內各內嵌有一感測元件,利用力學感測該刀把本體在受到對應的該加工刀具負載下產生的應力與應變的感測資料;以及一感測讀取裝置,該感測讀取裝置為套殼設計,其包覆於該連接部,且該連接部與外部套殼的空間中設有一感測讀取模組,該感測讀取模組連接於各該感測元件,用以讀取前述該些感測元件的感測資料。 In order to achieve the above object, the present invention provides a smart tool handle, which includes a tool handle body. The tool handle body includes a connecting part for connecting a processing tool, and the connecting part is provided with a plurality of embedded holes, and the connecting part is provided with a plurality of embedded holes. There is a sensing element embedded in each of the embedded holes, which uses mechanics to sense the sensing data of the stress and strain generated by the tool handle body under the corresponding load of the processing tool; and a sensing reading device, which senses The reading device is a shell design that covers the connecting part, and a sensing reading module is provided in the space between the connecting part and the outer shell. The sensing reading module is connected to each of the sensing elements. , used to read the sensing data of the aforementioned sensing elements.
作為優選方式,該些感測元件為壓電感測器。 As a preferred way, the sensing elements are piezoelectric sensors.
作為優選方式,該些感測元件用以針對該加工刀具的彎矩負載和扭矩負載進行分層感測,且對每個彎矩和扭矩感測各配置兩個對稱內嵌位置的該些感測元件。 As a preferred method, the sensing elements are used for hierarchical sensing of bending moment load and torque load of the processing tool, and the sensing elements are configured with two symmetrical embedded positions for each bending moment and torque sensing. Test components.
作為優選方式,該感測讀取裝置包含一微控制器,用以將該感測讀取模組讀取的感測資料進行訊號處理。該感測讀取裝置包含一無線傳輸模組,該無線傳輸模組連接於該微控制器,用以將該微控制器處理後的訊號加密發送至外界的一監控裝置。 As a preferred method, the sensing reading device includes a microcontroller for performing signal processing on the sensing data read by the sensing reading module. The sensing reading device includes a wireless transmission module. The wireless transmission module is connected to the microcontroller and is used to encrypt the signal processed by the microcontroller and send it to an external monitoring device.
作為優選方式,該感測讀取裝置包含一電源模組,該電源模組用以提供電力至該感測讀取裝置內的電子模組。該電源模組包含一電池,該電池為一次性電池、充電電池或無線充電電池。 Preferably, the sensing reading device includes a power module, and the power module is used to provide power to the electronic module in the sensing reading device. The power module includes a battery, which is a disposable battery, a rechargeable battery or a wireless rechargeable battery.
作為優選方式,該感測讀取裝置係可拆卸地固定設置於該連接部。 As a preferred mode, the sensing reading device is detachably fixed to the connection part.
本發明智慧刀把具有多軸解耦及高靈敏度的感測機制,採用彎矩負 載和扭矩負載進行分層感測方式,且配合壓電元件的壓電式主動力量感測,提升感測特性降低耦合效應。也透過壓電元件的對稱性放置,可偵測其加工過程的全域受力情況。 The smart tool handle of the present invention has multi-axis decoupling and high-sensitivity sensing mechanism, and adopts bending moment negative It implements layered sensing of load and torque load, and cooperates with piezoelectric active force sensing of piezoelectric elements to improve sensing characteristics and reduce coupling effects. Through the symmetrical placement of piezoelectric elements, the full range of stress during the processing can be detected.
相較於先前技術,本發明智慧刀把具有下列特點,在裝設形式上將感測元件嵌入於刀把內,裝設方式更穩定且可靠;感測機制只需要使用單個獨立的壓電元件感測,所以組裝整合簡單,適用於不同樣式的刀把;在解耦設計方面也較容易,設計指向於受力方向即可;感測元件嵌入於刀把內使得準確度高,各軸向感測不會互相干擾;其整體成本也較現有技術低,因為壓電元件成本低且所需數量較少。 Compared with the previous technology, the smart knife handle of the present invention has the following characteristics. In terms of installation, the sensing element is embedded in the knife handle, and the installation method is more stable and reliable; the sensing mechanism only needs to use a single independent piezoelectric element for sensing. , so the assembly and integration is simple and suitable for different styles of tool handles; it is also easier to decouple the design, and the design can be pointed in the direction of force; the sensing element is embedded in the tool handle to achieve high accuracy, and the sensing in each axis will not interfere with each other; its overall cost is also lower than the existing technology because the piezoelectric components are low-cost and require less quantity.
100:智慧刀把 100:Smart knife handle
200:刀把本體 200: Knife handle body
210:主軸組接部 210: Spindle assembly part
220:夾持部 220: Clamping part
230:連接部 230:Connection part
231:內嵌孔 231: Embedded hole
300:感測元件 300: Sensing element
400:加工刀具 400: Machining tools
500:感測讀取裝置 500: Sensing reading device
510:感測讀取模組 510: Sensing reading module
520:微控制器(MCU) 520: Microcontroller (MCU)
530:無線傳輸模組 530: Wireless transmission module
540:電源模組 540:Power module
600:監控裝置 600:Monitoring device
[圖1]為本案智慧刀把的分解示意圖。 [Figure 1] is an exploded schematic diagram of the smart knife handle in this case.
[圖2]為本案智慧刀把的組合示意圖。 [Figure 2] is a schematic diagram of the combination of the smart knife handle in this case.
[圖3]為本案智慧刀把的電路方塊圖。 [Figure 3] is the circuit block diagram of the smart knife handle in this case.
[圖4]為本案智慧刀把的應用例示意圖。 [Figure 4] is a schematic diagram of an application example of the smart knife handle in this case.
以下將詳述本發明的實施例,並配合圖式作為例示。除了這些詳細說明之外,本發明亦可廣泛地施行於其它的實施例中,任何所述實施例的輕易替代、修改、等效變化都包含在本發明之範圍內,並以申請專利範圍為準。在說明書的描述中,為了使讀者對本發明有較完整的瞭解,提供了許多特定細節;然而,本發明可能在省略部分或全部特定細節的前提下,仍可實施。此外,眾所周知的步驟或元件並未描述於細節中,以避免對本發明形成不必要之限制。圖式中相同或類似之元件將以相同或類似符號來表示。特別注意的是,圖式僅為示意之用,並非代表元件實際之尺寸或數量,有些細節 可能未完全繪出,以求圖式之簡潔。 The embodiments of the present invention will be described in detail below, along with the drawings as illustrations. In addition to these detailed descriptions, the present invention can also be widely implemented in other embodiments. Easy substitutions, modifications, and equivalent changes of any of the embodiments are included in the scope of the present invention, and are within the scope of the patent application. Accurate. In the description of the specification, many specific details are provided to enable the reader to have a more complete understanding of the present invention; however, the present invention may still be implemented with some or all of the specific details omitted. In addition, well-known steps or elements are not described in detail to avoid unnecessary limitations on the present invention. The same or similar elements in the drawings will be represented by the same or similar symbols. Please note that the drawings are for illustration only and do not represent the actual size or quantity of components. Some details May not be fully drawn for simplicity of illustration.
請參照圖1與圖2,為本案智慧刀把的分解及組合示意圖。本實施例的智慧刀把100包括一刀把本體200、複數個感測元件300、一加工刀具400以及一感測讀取裝置500。
Please refer to Figure 1 and Figure 2 for a schematic diagram of the decomposition and assembly of the smart knife handle in this case. The
該刀把本體200包括一主軸組接部210、一夾持部220與一連接部230,其中該加工刀具400連接於該連接部230末端。該主軸組接部210係用以連接加工機之主軸,加工機例如為銑床、鑽床、車床或鋸床。該夾持部220連接該主軸組接部210,該夾持部220用以供刀庫夾持或換刀之用;該夾持部220連接該連接部230,該連接部230連接於該加工刀具400,該加工刀具400例如為銑刀、鑽頭、車刀、鋸片等。
The
實施應用上,該連接部230上設有複數個內嵌孔231,且該些內嵌孔231內各內嵌有一感測元件300,利用力學感測該刀把本體200在受到對應的該加工刀具400負載下產生的應力與應變的感測資料;實施應用上,該些感測元件300為壓電感測器。該些感測元件300用以針對該加工刀具400的彎矩負載和扭矩負載進行分層感測,且對每個彎矩和扭矩感測各配置兩個對稱內嵌位置的該些感測元件300。
In practical applications, the connecting
實施應用上,本案利用力學分析找出刀把本體200在受到對應的該加工刀具400刀尖負載下能夠產生最大應力、應變的位置。其結果可知靠近該主軸組接部210會擁有最大的彎矩負載之應力,為了能夠將該些感測元件300的力訊號輸出進行解耦,本案針對彎矩負載和扭矩負載的感測進行分層設計,並採取對稱性設計,為每個彎矩(Mx、My)和扭矩(Tz)各配置兩個對稱內嵌位置的該些感測元件300,以提升對於該加工刀具400刀尖受力的感測精度。且透過力學分析也可得知,當在刀尖處施加Mx或My彎矩作用時,雖然在彎矩的感測元件300能夠輸出其相應的電壓訊號,但對於扭矩的
感測元件300也會受其影響而輸出部分電壓訊號。所以在實施上為了進一步獲取更好的解耦效果,而將上下兩組的該些感測元件300的內嵌孔洞位置彼此錯開,例如45度,可用以改善力量耦合效應。
In terms of implementation, this case uses mechanical analysis to find the position where the
該感測讀取裝置500為套殼設計,該感測讀取裝置500包覆於該連接部230(如圖2所示),且該連接部230與該感測讀取裝置500外部套殼的空間中設有一感測讀取模組510,該感測讀取模組510連接於各該感測元件300,用以讀取前述該些感測元件300的感測資料(電壓訊號)。
The
請參照圖3,為本案智慧刀把的電路方塊圖。實施應用上,該些感測元件300的感測資料(電壓訊號)可透過該感測讀取模組510將訊號經過電荷放大器及濾波元件所組成的讀取電路,並利用類比數位轉換器(圖中未示)後,透過一微控制器(MCU)520將已轉換的數位訊號進行處理,再透過一無線傳輸模組530,將該微控制器520處理後的訊號加密發送至外界的一監控裝置600進行加工即時動態監控(如圖4所示),藉由該無線傳輸模組530可將感測資料傳輸至該監控裝置600的分析模組,並再藉由分析模組來比對感測資料與資料庫中的刀把特性資料,以計算出該智慧刀把100的加工刀具400的磨耗、損壞、壽命等狀態。
Please refer to Figure 3, which is the circuit block diagram of the smart knife handle in this case. In implementation, the sensing data (voltage signals) of the
實施應用上,該感測讀取裝置500包含一電源模組540,該電源模組540用以提供電力至該感測讀取裝置500內的電子模組(如前述的感測讀取模組510、微控制器(MCU)520、無線傳輸模組530)。該電源模組540包含一電池,該電池為一次性電池、充電電池或無線充電電池。以充電電池為例,於該智慧刀把100未工作時,可對該智慧刀把100進行充電,而無需替換電源模組540。或無線充電電池為例,於該智慧刀把100工作間,可利用部分時間對該智慧刀把100進行充電,而無需替換電源模組540。
In implementation, the
實施應用上,該感測讀取裝置500的套殼設計,可由該加工刀具
400方向裝設至該連接部230,在空間佈局上會將智慧刀把100前述電子元件(除感測元件300以外),內置於該連接部230至外部套殼之間的空間中,其中電子元件包含感測讀取模組510、微控制器(MCU)520、無線傳輸模組530、電源模組540(電池、降壓IC)。在佈局應用上會以重量做為基準,平均分布到同一平面並貼合固定在該感測讀取裝置500的套殼內壁上,形成大概的重量平衡並完成動平衡設計。
In practical applications, the housing design of the
實施應用上,該感測讀取裝置500係可拆卸地固定設置於該連接部230。該感測讀取裝置500的固定,其中包含電路元件的包覆及固定,且可螺紋或固定件(圖中未示)與該連接部230進行固鎖,固定該感測讀取裝置500與刀把本體200間的穩定性,形成只存在內部元件的封閉空間,並在內部以灌膠的方式將電子元件形成固定。將該智慧刀把100內的感測系統模組化,且該感測讀取裝置500的可拆卸,提升整體該智慧刀把100的使用便利性,可實現後續更換元件、故障檢測機制,可降低後續維修成本。
In practical applications, the sensing and
於實際加工時,本發明智慧刀把具有多軸解耦及高靈敏度的感測機制,採用彎矩負載和扭矩負載進行分層感測方式,且配合壓電元件的壓電式主動力量感測,提升感測特性降低耦合效應。也透過壓電元件的對稱性放置,可偵測其加工過程的全域受力情況。該些感測元件300感測資料例如包含針對加工時刀把本體200之振動訊號、針對加工時刀把本體200之應力訊號、針對加工時刀把本體200之扭矩訊號等。該監控裝置600接收無線傳輸模組530傳輸的感測資料,由該監控裝置600內的分析模組依據資料庫中的刀把特性資料來比對目前刀把本體200加工時的各種感測資訊是否正常,以及各種感測資料統合起來的數據來分析出刀把本體200的加工刀具400目前之磨耗、損壞、壽命等狀態。
In actual processing, the smart tool handle of the present invention has a multi-axis decoupling and high-sensitivity sensing mechanism, using a layered sensing method of bending moment load and torque load, and cooperates with the piezoelectric active force sensing of piezoelectric elements. Improve sensing characteristics and reduce coupling effects. Through the symmetrical placement of piezoelectric elements, the full range of force conditions during the processing can be detected. The sensing data of the
上述揭示的實施形態僅例示性說明本發明之原理、特點及其功效, 並非用以限制本發明之可實施範疇,任何熟習此項技藝之人士均可在不違背本發明之精神及範疇下,對上述實施形態進行修飾與改變。任何運用本發明所揭示內容而完成之等效改變及修飾,均仍應為下述之申請專利範圍所涵蓋。 The above-disclosed embodiments are only illustrative to illustrate the principles, features and effects of the present invention. This is not intended to limit the scope of the invention. Anyone skilled in the art can modify and change the above embodiments without departing from the spirit and scope of the invention. Any equivalent changes and modifications accomplished by applying the contents disclosed in the present invention shall still be covered by the following patent application scope.
100:智慧刀把 100:Smart knife handle
200:刀把本體 200: Knife handle body
210:主軸組接部 210: Spindle assembly part
220:夾持部 220: Clamping part
230:連接部 230:Connection part
231:內嵌孔 231: Embedded hole
300:感測元件 300: Sensing element
400:加工刀具 400: Machining tools
500:感測讀取裝置 500: Sensing reading device
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TW111109293A TWI833177B (en) | 2022-03-14 | 2022-03-14 | Intelligent tool holder |
US18/118,590 US20230286092A1 (en) | 2022-03-14 | 2023-03-07 | Intelligent tool holder |
JP2023036055A JP7515212B2 (en) | 2022-03-14 | 2023-03-08 | Tool holder |
DE102023105722.7A DE102023105722A1 (en) | 2022-03-14 | 2023-03-08 | Intelligent tool holder |
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CN104139322A (en) * | 2014-07-18 | 2014-11-12 | 哈尔滨工业大学 | Capacitive intelligent knife handle system for detection of four-dimensional cutting force |
EP2103379B1 (en) * | 2008-03-19 | 2016-11-16 | pro.micron GmbH & Co.KG | Chuck-integrated force measurement system |
CN106112694A (en) * | 2016-07-08 | 2016-11-16 | 燕山大学 | A kind of strain-type intelligence handle of a knife system for two dimension Milling Force monitoring |
TWM570213U (en) * | 2017-12-08 | 2018-11-21 | 高聖精密機電股份有限公司 | Intelligent knife handle |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2103379B1 (en) * | 2008-03-19 | 2016-11-16 | pro.micron GmbH & Co.KG | Chuck-integrated force measurement system |
CN104139322A (en) * | 2014-07-18 | 2014-11-12 | 哈尔滨工业大学 | Capacitive intelligent knife handle system for detection of four-dimensional cutting force |
CN106112694A (en) * | 2016-07-08 | 2016-11-16 | 燕山大学 | A kind of strain-type intelligence handle of a knife system for two dimension Milling Force monitoring |
TWM570213U (en) * | 2017-12-08 | 2018-11-21 | 高聖精密機電股份有限公司 | Intelligent knife handle |
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