TWI400401B - Ball screws with thermal compensation devices - Google Patents
Ball screws with thermal compensation devices Download PDFInfo
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- TWI400401B TWI400401B TW99140657A TW99140657A TWI400401B TW I400401 B TWI400401 B TW I400401B TW 99140657 A TW99140657 A TW 99140657A TW 99140657 A TW99140657 A TW 99140657A TW I400401 B TWI400401 B TW I400401B
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本發明係有關智慧型之傳動元件，尤指一種具量測熱變形裝置之滾珠螺桿，係能主動告知使用者滾珠螺桿目前溫度及變形量。The invention relates to a smart transmission component, in particular to a ball screw with a measuring thermal deformation device, which can actively inform the user of the current temperature and deformation of the ball screw.
按滾珠螺桿已廣泛地被應用於各種高精度的機台，隨著高精度機台的需求愈高，滾珠螺桿的各項精度要求也愈高，然而，由於該滾珠螺桿在高速運轉作業下，其螺桿會因發熱而使溫度上昇，因而產生螺桿的熱變形之現象，而螺桿的熱變形即會導致機台定位的漂移(俗稱為機台熱變位)，而使機台的定位精度不佳。According to the ball screw, it has been widely used in various high-precision machines. With the higher demand of high-precision machines, the precision requirements of the ball screw are higher. However, due to the high-speed operation of the ball screw, The screw will increase the temperature due to heat generation, thus causing the phenomenon of thermal deformation of the screw, and the thermal deformation of the screw will cause the drift of the positioning of the machine (commonly known as the thermal displacement of the machine), and the positioning accuracy of the machine is not good.
為減少該螺桿溫昇所導致的熱變形對機台所造成的影響，目前已有的因應螺桿之熱變形的改善方法有以下三種方式：In order to reduce the influence of the thermal deformation caused by the temperature rise of the screw on the machine table, there are currently three ways to improve the thermal deformation of the screw:
其一、是預先熱機。在機台運作量產前，先快速空運轉一段時間(稱為熱機)後再進行量產，如此可以預先使螺桿的溫度上昇，後續螺桿溫度的再改變量就會比較少，以減少(或避免)加工過程中螺桿持續溫度上昇而產生熱變形而造成工件的尺寸誤差。但是，目前大家都在節能減碳，空運轉是耗時耗電而且不環保的，特別是滾珠螺桿的摩擦係數很低，在螺帽不受外力下，螺桿溫度上昇的速度並不快，而螺桿要達到穩定溫度所需的時間很長，因此，此方式特別耗時耗電，並不經濟。First, it is a preheating machine. Before the mass production of the machine is completed, the machine can be mass-produced for a period of time (called a heat engine), so that the temperature of the screw can be increased in advance, and the subsequent change of the screw temperature will be less, so as to reduce (or It is avoided that the continuous temperature rise of the screw during the machining process causes thermal deformation and causes dimensional error of the workpiece. However, at present, everyone is saving energy and reducing carbon. The idle operation is time-consuming and power-saving, and it is not environmentally friendly. In particular, the friction coefficient of the ball screw is very low. When the nut is not subjected to external force, the screw temperature rises not fast, and the screw is not fast. The time required to reach a stable temperature is very long, so this method is particularly time consuming and power consuming and uneconomical.
其二、是使用光學尺或磁性尺補正。由於該光學尺或磁性尺的成本高，且當機台的行程較長時，光學尺或磁性尺的製造困難度劇增，使光學尺或磁性尺的成本隨機台長度以指數式的增加，因此，此方式勢必造成大型機台的製造成本過高。The second is to use an optical ruler or a magnetic ruler to correct. Since the cost of the optical ruler or the magnetic ruler is high, and when the stroke of the machine is long, the difficulty in manufacturing the optical ruler or the magnetic ruler is greatly increased, and the cost of the optical ruler or the magnetic ruler is increased exponentially. Therefore, this method is bound to cause the manufacturing cost of the main machine to be too high.
其三、是對螺桿預先加予一個預拉力的設計。此方法雖然有減少熱變形影響機台精度的效果，但是目前的設計並不完善，在初始加工的過程中，螺桿隨著溫度的上升仍持續有熱變形產生，並且機台的定位仍會持續不斷的漂移，在開機後的半小時甚至一小時間內，工件雖比不預拉且不熱機的情形穩定，但尺寸仍會不斷的變化。目前的預拉方式只能減少螺桿熱變形對機台影響，並不能完全或幾近完全消除螺桿的熱變形影響。The third is to pre-apply a pre-tension on the screw. Although this method has the effect of reducing the thermal deformation affecting the accuracy of the machine, the current design is not perfect. During the initial processing, the screw continues to have thermal deformation as the temperature rises, and the positioning of the machine will continue. Constant drift, half an hour or even a small time after starting the machine, although the workpiece is stable than without pre-tensioning and not hot machine, but the size will continue to change. The current pre-tensioning method can only reduce the influence of screw thermal deformation on the machine table, and can not completely or completely eliminate the thermal deformation effect of the screw.
因此螺桿的熱變形問題目前仍是機械領域的重要問題之一，實有加以研究改善及精進的需要。Therefore, the problem of thermal deformation of the screw is still one of the important problems in the field of machinery, and there is a need to study improvement and improvement.
基於上述習知技術之問題點，本發明人經過研究改良後，終有確能達成以下發明之目的之發明誕生。Based on the problems of the above-mentioned conventional techniques, the inventors of the present invention have succeeded in research and development, and the inventions which can achieve the object of the following inventions are finally born.
即，本發明首要目的在於，研發一種能取得滾珠螺桿之桿軸因溫度引響而產生軸方向之變形的數據，並能主動通知使用者目前桿軸之變形量，而讓使用者能進行加工補償，使被加工物可獲得較佳精度。That is, the primary object of the present invention is to develop a data that can obtain the deformation of the shaft of the ball screw due to temperature stimuli, and can actively notify the user of the amount of deformation of the current shaft, so that the user can perform processing. Compensation allows the workpiece to achieve better accuracy.
為達上述之目的，本發明係為一種具量測熱變形裝置之滾珠螺桿，係包含：一桿軸，其係為長條狀之結構，並具有一外緣表面及兩端面，該外緣表面具有螺旋狀之滾動溝，且該桿軸設有一長條形且為軸方向設置之容置部；一螺帽組件，係穿設於該桿軸，且設有相對該滾動溝之滾動槽，該滾動溝及滾動槽係構成一負荷路徑，該負荷路徑設有複數個滾動件，且該螺帽組件更設有一迴流道，該迴流道係提供複數該滾動件無限循環；一量測熱變形裝置，係設置於該容置部，該量測熱變形裝置係包含：一基準軸及一力量量測器，該基準軸之熱膨脹係數與該桿軸之熱膨脹係數不相等，該力量量測器係設置於該基準軸其中一端面，並與該端面接觸，且該基準軸與力量量測器係無法進行軸方向的相對位移；該力量量測器係能量測該基準軸因吸收熱能所產生軸方向之力量數值，藉由該力量數值計算該基準軸之溫升值，最後藉由該溫升值計算該桿軸之變形量。In order to achieve the above object, the present invention is a ball screw having a measuring heat deformation device, comprising: a shaft having a long strip structure and having an outer edge surface and two end surfaces, the outer edge The surface has a spiral rolling groove, and the rod shaft is provided with an elongated and axially disposed receiving portion; a nut assembly is disposed on the shaft and is provided with a rolling groove opposite to the rolling groove The rolling groove and the rolling groove system form a load path, the load path is provided with a plurality of rolling elements, and the nut assembly is further provided with a return flow channel, which provides a plurality of infinite cycles of the rolling piece; The deformation device is disposed in the accommodating portion, and the measuring thermal deformation device comprises: a reference axis and a force measuring device, wherein a thermal expansion coefficient of the reference axis is not equal to a thermal expansion coefficient of the shaft, and the force is measured The device is disposed on one end surface of the reference shaft and is in contact with the end surface, and the reference shaft and the force measuring device are unable to perform relative displacement in the axial direction; the force measuring device is configured to measure the reference shaft due to absorption of heat energy Axis direction Amount value calculated by the power value of the reference axis of the temperature rise, the final temperature rise by the amount of deformation of the lever shaft is calculated.
按，取得該桿軸之變形量後再藉由一處理單元來判斷該桿軸之變形量是否已影響設備加工時的精度，如果會影響則藉由處理單元來啟動警報系統來通知使用者，讓使用者能進行加工補償，使被加工物可獲得較佳精度。Pressing to obtain the deformation amount of the rod shaft, and then determining whether the deformation amount of the rod shaft has affected the precision of the processing of the device by a processing unit, and if it is affected, the alarm system is activated by the processing unit to notify the user. Allows the user to perform machining compensation so that the workpiece can obtain better precision.
另，因為該基準軸與桿軸位於相同環境，故該基準軸之溫升值係與桿軸之溫升值相同，如求得該基準軸之溫升值，即可藉由該溫升值判斷是否已超過該桿軸的所能負荷的溫升值，如果已超過該桿軸的所能負荷的溫升值，該處理單元即可啟動警報系統來通知使用者，以防止設備繼續運作而產生壞損，或設備所加工的加工物件無法達到預期精度等問題。In addition, since the reference axis and the rod axis are in the same environment, the temperature rise value of the reference axis is the same as the temperature rise value of the shaft. If the temperature rise value of the reference axis is obtained, the temperature rise value can be used to determine whether the temperature rise value has been exceeded. If the temperature rise of the load of the shaft exceeds the temperature rise of the load of the shaft, the processing unit can activate an alarm system to notify the user to prevent the device from continuing to operate and cause damage, or equipment. The processed workpieces cannot meet the expected accuracy and the like.
為了更進一步瞭解本發明之特徵及技術內容，請參閱以下有關本發明之實施方式說明及圖式，然而此實施方式及圖式僅供說明及參考用，而非用以對本發明做任何限制者。In order to further understand the features and technical aspects of the present invention, reference should be made to the description of the embodiments of the present invention and the accompanying drawings. .
以下茲配合圖式列舉若干較佳實施例，用以對本發明之組成構件及功效作進一步說明，其中各圖式之簡要說明如下：In the following, a number of preferred embodiments are listed in conjunction with the drawings to further illustrate the components and functions of the present invention. The brief description of each of the drawings is as follows:
第一圖係為本發明具量測熱變形裝置之滾珠螺桿立體圖。The first figure is a perspective view of a ball screw of the measuring heat deformation device of the present invention.
第二圖係為本發明第一實施例桿軸與量測熱變形裝置之組合圖。The second figure is a combination diagram of the shaft and the measuring heat deformation device of the first embodiment of the present invention.
第三圖係為本發明第二實施例桿軸與量測熱變形裝置之組合圖。The third figure is a combination diagram of the shaft and the measuring heat deformation device of the second embodiment of the present invention.
第四圖係為本發明第三實施例桿軸與量測熱變形裝置之組合圖。The fourth figure is a combination diagram of the shaft and the measuring heat deformation device of the third embodiment of the present invention.
第五圖係為本發明第四實施例桿軸與量測熱變形裝置之組合圖。The fifth figure is a combination diagram of the shaft and the measuring heat deformation device of the fourth embodiment of the present invention.
第六圖係為本發明具量測熱變形裝置之滾珠螺桿所需硬體流程圖。The sixth figure is a hardware flow chart required for the ball screw of the measuring heat deformation device of the present invention.
第七圖係為本發明具量測熱變形裝置之滾珠螺桿之作動步驟流程圖。The seventh figure is a flow chart of the actuating steps of the ball screw of the measuring heat deformation device of the present invention.
請參閱第一至二圖及第六至七圖所示，係為本發明第一較佳實施例，本發明係為一種具量測熱變形裝置之滾珠螺桿，係包含：一桿軸1，其係為長條狀之結構，並具有一外緣表面11及兩端面13，該外緣表面11具有螺旋狀之滾動溝111，且該桿軸1設有一長條形且為軸方向設置之容置部12，該容置部12一端係具有一貫穿該桿軸1之端面13的安裝孔121，另一端係為一承靠面122；一螺帽組件2，係設有一供該桿軸1穿設之穿孔21，且於該穿孔21設有相對該滾動溝111之滾動槽211，該滾動溝111及滾動槽211係構成一負荷路徑H，該負荷路徑H設有複數個滾動件3，且該螺帽組件2更設有一迴流道(未顯示)，該迴流道(未顯示)係提供複數該滾動件3無限循環；一量測熱變形裝置，係設置於該容置部12，該量測熱變形裝置係包含：一基準軸4及一力量量測器5、定位件7及訊號線6，該基準軸4及一力量量測器5、定位件7及訊號線6係由該安裝孔置入該容置部中，該基準軸4之一端面41係抵靠於該承靠面122，該基準軸4另一端面41係與該力量量測器5之量測端51接觸，該定位件7係設置於該力量量測器5之非量測端51的位置，該定位件7主要功能係將該基準軸4與力量量測器5定位，使該基準軸4與力量量測器5無法進行軸方向X之相對位移，而該力量量測器5係能量測該基準軸4因吸收熱能所產生軸方向X之力量數值(因為該基準軸4吸收熱能後會產生膨脹，而該基準軸4一端面41係抵靠於承靠面122，故因為該膨脹而產生的應力只能朝該力量量測器5之方向傳遞，是以，該力量量測器5才能獲得該力量數值)，且該基準軸4之熱膨脹係數與該桿軸1之熱膨脹係數不相等，而該桿軸1之材質通常為鋼材，該基準軸4之材質可為銅、鋁或銀等。Referring to the first to second and sixth to seventh embodiments, the first preferred embodiment of the present invention is a ball screw having a measuring heat deformation device, comprising: a shaft 1, It has a long strip structure and has an outer edge surface 11 and a two end surface 13 having a spiral rolling groove 111, and the rod shaft 1 is provided with an elongated shape and arranged in the axial direction. The accommodating portion 12 has a mounting hole 121 extending through the end surface 13 of the shaft 1 at one end, and the other end is a bearing surface 122; a nut assembly 2 is provided with a shaft A through hole 21 is bored, and the through hole 21 is provided with a rolling groove 211 opposite to the rolling groove 111. The rolling groove 111 and the rolling groove 211 constitute a load path H, and the load path H is provided with a plurality of rolling elements 3 And the nut assembly 2 is further provided with a return passage (not shown), wherein the return passage (not shown) provides a plurality of infinite loops of the rolling member 3; a measuring heat deformation device is disposed in the receiving portion 12, The measuring heat deformation device comprises: a reference shaft 4 and a force measuring device 5, a positioning member 7 and a signal line 6, the reference shaft 4 and A force measuring device 5, a positioning member 7 and a signal line 6 are inserted into the receiving portion by the mounting hole, and an end surface 41 of the reference shaft 4 is abutted against the bearing surface 122, and the reference shaft 4 is further An end face 41 is in contact with the measuring end 51 of the force measuring device 5, and the positioning member 7 is disposed at a position of the non-measuring end 51 of the force measuring device 5, and the main function of the positioning member 7 is the reference The shaft 4 is positioned with the force measuring device 5 such that the reference shaft 4 and the force measuring device 5 cannot perform the relative displacement of the axial direction X, and the force measuring device 5 measures the energy generated by the reference shaft 4 due to absorption of thermal energy. The value of the force in the axial direction X (because the reference shaft 4 absorbs heat, expansion occurs, and the one end surface 41 of the reference shaft 4 abuts against the bearing surface 122, so the stress generated by the expansion can only be directed toward the amount of force The direction of the detector 5 is such that the force measuring device 5 can obtain the force value), and the thermal expansion coefficient of the reference shaft 4 is not equal to the thermal expansion coefficient of the shaft 1, and the material of the shaft 1 is usually For the steel material, the material of the reference shaft 4 may be copper, aluminum or silver.
承前述，因為該基準軸4與力量量測器5係無法進行軸方向X的相對位移，所以該力量量測器5才能準確的量測該基準軸4因為吸收熱能所產生軸方向X之力量數值，故該基準軸4與力量量測器5兩者一定要相互接觸，且該基準軸4不與力量量測器5接觸之端面41也必須限制軸方向X位移的自由度，因為這樣該基準軸4如產生膨脹則應力只會朝力量量測器5之方向傳遞，如此該力量量測器5所獲得數據才會精確。In the foregoing, since the reference shaft 4 and the force measuring device 5 cannot perform relative displacement in the axial direction X, the force measuring device 5 can accurately measure the strength of the axis X due to the absorption of thermal energy by the reference shaft 4 Therefore, the reference shaft 4 and the force measuring device 5 must be in contact with each other, and the end surface 41 of the reference shaft 4 not in contact with the force measuring device 5 must also limit the degree of freedom in the axial direction X displacement, because If the reference shaft 4 is expanded, the stress is transmitted only in the direction of the force measuring device 5, so that the data obtained by the force measuring device 5 is accurate.
再者，請特參閱第六圖，該訊號線6之一端係與該力量量測器5連接，而訊號線6另一端係與濾波器、放大器、擷取介面及處理單元(例如：電腦或微處理器等)串接，而藉由該濾波器、放大器及擷取介面將力量量測器5的訊號整理成該處理單元可讀取的訊號，並藉由該處理單元將該訊號計算後取得一數值(其數值係指溫升值或變形量)，再判斷該數值是否已超出預設安全數值，如果超出預設安全數值則該處理單元係啟動警報系統通知使用者，讓使用者能進行問題排除，另外，使用者亦可由該處理單元所連接的顯示器來觀察最新或歷史數值，故相當方便。Furthermore, please refer to the sixth figure. One end of the signal line 6 is connected to the power measuring device 5, and the other end of the signal line 6 is connected to a filter, an amplifier, a capture interface and a processing unit (for example: a computer or a microprocessor, etc.) is connected in series, and the signal of the power measuring device 5 is organized into a signal readable by the processing unit by the filter, the amplifier and the capture interface, and the signal is calculated by the processing unit. Obtain a value (the value refers to the temperature rise or deformation), and then determine whether the value has exceeded the preset safety value. If the preset safety value is exceeded, the processing unit activates the alarm system to notify the user that the user can proceed. In addition, the user can also observe the latest or historical value by the display connected to the processing unit, which is quite convenient.
承上述，請特參閱第七圖，該處理單元接收到該力量量測器之數據後，會依序進行兩個主要步驟，其一、為計算該基準軸的溫升值(該溫升值係為滾珠螺桿運行前、後的基準軸溫度差，而溫升值係利用力量量測器所量測的力量數值來推導的)；其二、為計算該桿軸之變形量，而計算該桿軸之變形量需於計算該基準軸之溫升值後進行；而該基準軸之溫升係藉由以下公式計算取得：In the above, please refer to the seventh figure. After receiving the data of the force measuring device, the processing unit performs two main steps in sequence. First, the temperature rise value of the reference axis is calculated (the temperature rise value is The reference shaft temperature difference before and after the ball screw is operated, and the temperature rise value is derived by using the force value measured by the force measuring device); second, calculating the deformation amount of the rod shaft, and calculating the rod axis The amount of deformation needs to be calculated after calculating the temperature rise of the reference axis; and the temperature rise of the reference axis is calculated by the following formula:
其中，among them,
ΔT ：溫升值。Δ T : temperature rise value.
F m ：力量量測器所量測的力量數值。 F m : The value of the force measured by the force measuring device.
L B ：基準軸原長(註：未變形前)。 L B : Original length of the reference axis (Note: Before deformation).
E B ：基準軸的楊氏模數(Young’s modulus)。 E B : Young's modulus of the reference axis.
A B ：基準軸的截面積。 A B : Cross-sectional area of the reference axis.
α B ：基準軸的軸方向之熱膨脹係數。α B : coefficient of thermal expansion in the axial direction of the reference axis.
α SH ：桿軸的軸方向之熱膨脹係數。 α SH : coefficient of thermal expansion in the axial direction of the shaft.
L SH ：桿軸原長(註：未變形前)。 L SH : The original length of the shaft (note: before deformation).
藉由該力量量測器所測得的力量數值所推導的基準軸之溫升值係與該桿軸的溫升值相同，因為該基準軸與桿軸位於相同環境，故，即可藉由該溫升值判斷是否已超過該桿軸的所能負荷的溫升值，如果已超過該桿軸的所能負荷的溫升值，該處理單元即可啟動警報系統來通知使用者，以防止設備繼續運作而產生壞損，或設備所加工的加工物件無法達到預期精度等問題。The temperature rise value of the reference axis derived by the force value measured by the force measuring device is the same as the temperature rise value of the shaft, because the reference axis and the shaft are in the same environment, so the temperature can be The appreciation value determines whether the temperature rise of the load of the shaft has exceeded the value of the load of the shaft. If the temperature rise of the load of the shaft has been exceeded, the processing unit can activate the alarm system to notify the user to prevent the equipment from continuing to operate. Damage, or processed parts processed by the equipment cannot meet the expected accuracy.
接著，取得該基準軸之溫升值後即可利用下列公式導出該桿軸之變形量。Then, after obtaining the temperature rise value of the reference axis, the deformation amount of the rod shaft can be derived by the following formula.
ΔL SH =L SH ×α SH ×ΔT Δ L SH = L SH × α SH × Δ T
其中，among them,
L SH ：桿軸原長(註：未變形前)。 L SH : The original length of the shaft (note: before deformation).
ΔL SH ：桿軸變形後的變形量。Δ L SH : The amount of deformation after deformation of the shaft.
α SH ：桿軸的軸向熱膨脹係數。 α SH : axial thermal expansion coefficient of the shaft.
ΔT ：溫升值。Δ T : temperature rise value.
然，取得該桿軸之變形量後再藉由一處理單元來判斷該桿軸之變形量是否已影響設備加工時的精度，如果會影響則藉由處理單元來啟動警報系統來通知使用者，讓使用者能進行加工補償，使被加工物可獲得較佳精度。However, after obtaining the deformation amount of the shaft, it is determined by a processing unit whether the deformation amount of the shaft has affected the precision of the processing of the device, and if it is affected, the alarm system is activated by the processing unit to notify the user. Allows the user to perform machining compensation so that the workpiece can obtain better precision.
為求清楚說明本發明之實施特點，以下說明本發明較習用進步之處及實用方式：In order to clearly illustrate the implementation features of the present invention, the following description of the preferred and practical aspects of the present invention is as follows:
該量測熱變形裝置所使用的元件成本非常低，且於桿軸上加工一軸方向的容置部也是非常成熟的技術，故加工成本也非常低；且藉由低成本的量測熱變形裝置就能達成習知技術光學尺或磁性尺的補正效果，且不受設備長度的引響，故本發明之量測熱變形裝置係相當具有實用性，能大幅降低設備廠的成本。The component used in the thermal deformation device has a very low cost, and processing the housing in one axial direction on the shaft is also a very mature technology, so the processing cost is also very low; and the thermal deformation device is measured by low cost. The correction effect of the conventional technical optical scale or the magnetic ruler can be achieved, and is not affected by the length of the device. Therefore, the measuring thermal deformation device of the present invention is quite practical and can greatly reduce the cost of the equipment factory.
請參閱第一圖及第三圖所示，係為本發明第二較佳實施例，本實施例與第一較佳實施例結構不同在於：於基準軸4相異之位置分別套設有一密封件A，該密封件A、基準軸4的表面與容置部12的壁面之間係形成一容置空間Y，而該容置空間Y係設有導熱介質R(例如：導熱膏或導熱液等)，如此的設計能使熱傳導更確實，相對使基準軸4吸收熱能更為快速，亦讓最後處理單元計算獲得的數值更為準確。而第一較佳實施例與第二較佳實施例之結構設計係適合應用於螺帽旋轉型態之滾珠螺桿，也就是動力源直接驅動該螺帽組件2使其旋轉，而帶動螺帽組件2進行直線往覆位移，因為如果此兩種實施例應用於桿軸1旋轉型態的滾珠螺桿，也就是動力源直接驅動該桿軸1使其旋轉，而帶動螺帽組件2進行直線往覆位移，而當該桿軸1旋轉時，會造成力該基準軸4、力量量測器5與訊號線6跟著旋轉，而該訊號線6兩端皆為固定，故如果該訊號線6跟著扭轉就會產生斷裂，是以，不適合應用於桿軸旋轉之滾珠螺桿。但本實施例提出的設置導熱介質的技術思想係可應用於本發明所揭露之全部較佳實施例；而其餘組態與功效皆與第一實施例相同，在此不多作贅述。Referring to the first and third figures, the second preferred embodiment of the present invention is different from the first preferred embodiment in that a seal is placed on the reference shaft 4 at different positions. The sealing member A, the surface of the reference shaft 4 and the wall surface of the accommodating portion 12 form an accommodating space Y, and the accommodating space Y is provided with a heat conducting medium R (for example, a thermal conductive paste or a thermal fluid) Etc.), such a design can make the heat conduction more reliable, and the reference shaft 4 absorbs the heat energy more quickly, and the value obtained by the final processing unit is more accurate. The structural design of the first preferred embodiment and the second preferred embodiment is suitable for the ball screw of the nut rotation type, that is, the power source directly drives the nut assembly 2 to rotate, and the nut assembly is driven. 2 Straight-line displacement is applied, because if the two embodiments are applied to the ball screw of the rotating shaft of the shaft 1, that is, the power source directly drives the shaft 1 to rotate, and the nut assembly 2 is driven to make a straight line. Displacement, and when the shaft 1 rotates, the reference shaft 4, the strength measuring device 5 and the signal line 6 are rotated, and the signal line 6 is fixed at both ends, so if the signal line 6 is followed by twisting A break is generated, so that it is not suitable for a ball screw that is rotated by a shaft. However, the technical idea of the heat-dissipating medium provided in this embodiment can be applied to all the preferred embodiments disclosed in the present invention; and the rest of the configuration and functions are the same as those in the first embodiment, and will not be further described herein.
請參閱第一圖及第四圖所示，係為本發明第三較佳實施例，本實施例與第一較佳實施例結構不同在於：該力量量測器5係與一訊號線轉接器8之一端銜接，該訊號線轉接器8之另一端再與該訊號線6之一端銜接，此實施例係適合應用於桿軸1旋轉型態的滾珠螺桿，也就是動力源直接驅動該桿軸1使其旋轉，而帶動螺帽組件2進行直線往覆位移，而當該桿軸1旋轉時，該力量量測器5亦跟著旋轉，此時，該訊號線轉接器8與該力量量測器5銜接之一端係跟著力量量測器5旋轉，但該訊號線轉接器8另一端，也就是與訊號線6銜接之端部係為不旋轉，如此就可以防止訊號線6因與桿軸1同步旋轉而產生斷裂；而其餘組態與功效皆與第一實施例相同，在此不多作贅述。Referring to the first and fourth figures, the third preferred embodiment of the present invention is different from the first preferred embodiment in that the power measuring device 5 is connected to a signal line. One end of the device 8 is connected, and the other end of the signal line adapter 8 is connected to one end of the signal line 6. This embodiment is suitable for the ball screw of the rotary type of the shaft 1, that is, the power source directly drives the ball screw. The shaft 1 rotates to drive the nut assembly 2 to linearly displace, and when the shaft 1 rotates, the force measuring device 5 also rotates. At this time, the signal line adapter 8 and the One end of the strength measuring device 5 is rotated by the force measuring device 5, but the other end of the signal line adapter 8, that is, the end portion connected to the signal line 6 is not rotated, so that the signal line 6 can be prevented. The breakage occurs due to the synchronous rotation with the shaft 1; and the rest of the configuration and function are the same as those of the first embodiment, and will not be further described herein.
請參閱第一圖及第五圖，係為本發明第四較佳實施例，本實施例係適合應用於桿軸旋轉型態的滾珠螺桿，而本實施例與第一較佳實施例結構不同在於：該桿軸1具有兩個安裝孔121分別貫穿該桿軸1之兩端面13，且與該容置部12連通，該基準軸4一端面41係承靠於一軸承9，該軸承9係由鄰近於該端面41之安裝孔121置入該容置部12，而該安裝孔121並設有一定位件7將該軸承9固定於容置部12；該基準軸4另一端面41仍與第一較佳實施例相同，係與該力量量測器5之量測端51接觸，但該定位件7與力量量測器5之間增設一軸承9，且該軸承兩端面係分別與該定位件7與力量量測器5接觸，而設置兩該軸承9之作用係能讓該基準軸4與力量量測器5不與該桿軸1同步旋轉，如此即可以防止由力量量測器5上銜接出來的訊號線6因與桿軸1同步旋轉而產生斷裂；而其餘組態與功效皆與第一實施例相同，在此不多作贅述。Referring to the first and fifth figures, which is a fourth preferred embodiment of the present invention, the present embodiment is suitable for a ball screw of a shaft rotating type, and the embodiment is different from the first preferred embodiment. The rod shaft 1 has two mounting holes 121 respectively extending through the end faces 13 of the shaft 1 and communicating with the receiving portion 12, and the end surface 41 of the reference shaft 4 is supported by a bearing 9, the bearing 9 The accommodating portion 12 is inserted into the mounting hole 121 adjacent to the end surface 41, and the mounting hole 121 is provided with a positioning member 7 to fix the bearing 9 to the accommodating portion 12; the other end surface 41 of the reference shaft 4 remains As in the first preferred embodiment, the measuring end 51 of the force measuring device 5 is in contact with each other, but a bearing 9 is added between the positioning member 7 and the force measuring device 5, and the bearing ends are respectively respectively The positioning member 7 is in contact with the force measuring device 5, and the two bearing members 9 are arranged to prevent the reference shaft 4 and the force measuring device 5 from rotating synchronously with the shaft 1, so that the force measurement can be prevented. The signal line 6 connected to the device 5 is broken due to the synchronous rotation with the shaft 1; and the rest of the configuration and function are the first implementation. The examples are the same and will not be repeated here.
綜所上述，所以本發明之『具有產業之可利用性』應已毋庸置疑，除此之外，在本案實施例所揭露出的特徵技術，於申請之前並未曾見於諸刊物，亦未曾被公開使用，不但具有如上所述功效增進之事實，更具有不可輕忽的附加功效，是故，本發明的『新穎性』以及『進步性』都已符合專利法規，爰依法提出發明專利之申請，祈請惠予審查並早日賜准專利，實感德便。In view of the above, the "industrial availability" of the present invention should be unquestionable. In addition, the feature technology disclosed in the embodiment of the present invention has not been seen in publications before the application, nor has it been disclosed. The use of not only has the fact that the effect is improved as described above, but also has an additional effect that cannot be neglected. Therefore, the "novelty" and "progressiveness" of the present invention are in compliance with the patent regulations, and the application for the invention patent is filed according to law. Please give us a review and grant a patent as soon as possible.
以上所述實施例之揭示係用以說明本發明，並非用以限制本發明，故舉凡數值之變化與等效元件之置換，仍應隸屬本發明之範疇。The above description of the embodiments is intended to be illustrative of the invention and is not intended to limit the scope of the invention.
1．．．桿軸1. . . Rod shaft
11．．．外緣表面11. . . Outer surface
111．．．滾動溝111. . . Rolling groove
12．．．容置部12. . . Housing
121．．．安裝孔121. . . Mounting holes
122．．．承靠面122. . . Bearing surface
13．．．端面13. . . End face
2．．．螺帽組件2. . . Nut assembly
21．．．穿孔twenty one. . . perforation
211．．．滾動槽211. . . Rolling groove
3．．．滾動件3. . . Rolling element
4．．．基準軸4. . . Reference axis
41．．．端面41. . . End face
5．．．力量量測器5. . . Power measuring device
51．．．量測端51. . . Measuring end
6．．．訊號線6. . . Signal line
7．．．定位件7. . . Positioning member
8．．．訊號線轉接器8. . . Signal line adapter
9．．．軸承9. . . Bearing
R．．．導熱介質R. . . Thermal medium
A．．．密封件A. . . Seals
H．．．負荷路徑H. . . Load path
X．．．軸方向X. . . Axis direction
Y．．．容置空間Y. . . Housing space
第一圖係為本發明具量測熱變形裝置之滾珠螺桿立體圖。The first figure is a perspective view of a ball screw of the measuring heat deformation device of the present invention.
第二圖係為本發明第一實施例桿軸與量測熱變形裝置之組合圖。The second figure is a combination diagram of the shaft and the measuring heat deformation device of the first embodiment of the present invention.
第三圖係為本發明第二實施例桿軸與量測熱變形裝置之組合圖。The third figure is a combination diagram of the shaft and the measuring heat deformation device of the second embodiment of the present invention.
第四圖係為本發明第三實施例桿軸與量測熱變形裝置之組合圖。The fourth figure is a combination diagram of the shaft and the measuring heat deformation device of the third embodiment of the present invention.
第五圖係為本發明第四實施例桿軸與量測熱變形裝置之組合圖。The fifth figure is a combination diagram of the shaft and the measuring heat deformation device of the fourth embodiment of the present invention.
第六圖係為本發明具量測熱變形裝置之滾珠螺桿所需硬體流程圖。The sixth figure is a hardware flow chart required for the ball screw of the measuring heat deformation device of the present invention.
第七圖係為本發明具量測熱變形裝置之滾珠螺桿之作動步驟流程圖。The seventh figure is a flow chart of the actuating steps of the ball screw of the measuring heat deformation device of the present invention.
1．．．桿軸1. . . Rod shaft
11．．．外緣表面11. . . Outer surface
111．．．滾動溝111. . . Rolling groove
12．．．容置部12. . . Housing
121．．．安裝孔121. . . Mounting holes
122．．．承靠面122. . . Bearing surface
13．．．端面13. . . End face
4．．．基準軸4. . . Reference axis
41．．．端面41. . . End face
5．．．力量量測器5. . . Power measuring device
51．．．量測端51. . . Measuring end
6．．．訊號線6. . . Signal line
7．．．定位件7. . . Positioning member
X．．．軸方向X. . . Axis direction
Claims (8)
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| TW99140657A TWI400401B (en) | 2010-11-24 | 2010-11-24 | Ball screws with thermal compensation devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99140657A TWI400401B (en) | 2010-11-24 | 2010-11-24 | Ball screws with thermal compensation devices |
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| Publication Number | Publication Date |
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| TWI400401B true TWI400401B (en) | 2013-07-01 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0569595A1 (en) * | 1991-11-15 | 1993-11-18 | Yotaro Hatamura | Feed screw device and precisely positioning micromotion feed system |
| TW200902882A (en) * | 2007-07-04 | 2009-01-16 | Hiwin Tech Corp | Temperature rise adjustable and heat displacement controllable ball screw |
| TWM363352U (en) * | 2009-02-17 | 2009-08-21 | Buffalo Machinery Company Ltd | Control module for compensating processing position |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0569595A1 (en) * | 1991-11-15 | 1993-11-18 | Yotaro Hatamura | Feed screw device and precisely positioning micromotion feed system |
| TW200902882A (en) * | 2007-07-04 | 2009-01-16 | Hiwin Tech Corp | Temperature rise adjustable and heat displacement controllable ball screw |
| TWM363352U (en) * | 2009-02-17 | 2009-08-21 | Buffalo Machinery Company Ltd | Control module for compensating processing position |
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