TWI688449B - Automatically balanced tool holder - Google Patents
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- TWI688449B TWI688449B TW108105652A TW108105652A TWI688449B TW I688449 B TWI688449 B TW I688449B TW 108105652 A TW108105652 A TW 108105652A TW 108105652 A TW108105652 A TW 108105652A TW I688449 B TWI688449 B TW I688449B
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Abstract
一種自動平衡之工具機刀把,包含一本體,及至少一平衡件組。該本體包括一沿一軸線延伸且適用於裝設在一工具機主軸的裝設部、一沿該軸線相反於該裝設部且適用於供一刀具設置的刀座部,及一連接該裝設部及該刀座部且沿該軸線的徑向突出該裝設部的環部。該平衡件組包括一形成於該環部且繞該軸線呈圓環狀的環槽,及複數設置於該環槽內且可於該環槽內自由移動的質量物,該等質量物的總體積不超過該環槽的容積的一半,且當該等質量物相互集中而呈圓弧狀時,其圓弧角不超過180度。當整體轉動系統以高轉速旋轉時,該等質量物會於該環槽內朝不平衡量的相反位置移動,如此可抑制因不平衡量所產生振動,以減少主軸與刀把校正次數,並提高工具機稼動率。An automatic balancing tool machine tool handle includes a body and at least one balancing piece set. The body includes an installation portion extending along an axis and adapted to be installed on a main shaft of a machine tool, a tool holder portion opposite to the installation portion along the axis and adapted to be provided with a tool, and a connection to the equipment The ring portion of the mounting portion and the tool holder portion and protrudes in the radial direction of the axis along the mounting portion. The balance piece group includes a ring groove formed in the ring portion and formed in an annular shape around the axis, and a plurality of masses disposed in the ring groove and freely movable in the ring groove, the total mass of the masses The volume does not exceed half of the volume of the ring groove, and when the masses are concentrated with each other in an arc shape, the arc angle does not exceed 180 degrees. When the overall rotation system rotates at a high speed, the masses move towards the opposite position of the unbalance amount in the ring groove, which can suppress the vibration caused by the unbalance amount, reduce the number of corrections of the spindle and the tool holder, and improve the machine tool Utilization rate.
Description
本發明是有關於一種工具機刀把,特別是指一種自動平衡之工具機刀把。The invention relates to a machine tool handle, in particular to an automatic balancing machine tool handle.
工具機主軸及刀把具有高轉速與高精度的要求,然而工具機主軸及刀把繞其軸線旋轉時,會因主軸或刀把結構不對稱、材質質量產生不對稱分布或機構組裝時造成的誤差…等因素,而產生不平衡量,進而在高速旋轉時產生振動及噪音,並影響加工精度及主軸、刀把的使用壽命。而一般的解決辦法是在工具機進行加工之前及加工一段時間後,對工具機主軸及刀把進行不平衡量的測量及校正,然而多次停機校正會導致加工時間與生產成本的增加。The spindle and tool holder of the machine tool have high speed and high precision requirements. However, when the spindle and tool holder of the machine tool rotates around its axis, the asymmetry of the structure of the spindle or tool holder, the asymmetric distribution of the material quality or the error caused by the assembly of the mechanism... etc. Factors, which produce unbalance, and then produce vibration and noise during high-speed rotation, and affect the machining accuracy and the service life of the spindle and tool handle. The general solution is to measure and calibrate the unbalance of the machine tool spindle and tool holder before and after processing for a period of time. However, multiple shutdown corrections will increase the processing time and production costs.
因此,本發明之目的,即在提供一種減少主軸與刀把校正次數與提高工具機稼動率的自動平衡之工具機刀把。Therefore, the object of the present invention is to provide a tool balance for an automatic balancing machine tool that reduces the number of corrections of the spindle and the tool holder and improves the machine tool utilization rate.
於是,本發明自動平衡之工具機刀把,包含一本體,及至少一平衡件組。該本體包括一沿一軸線延伸且適用於裝設在一工具機主軸的裝設部、一沿該軸線相反於該裝設部且適用於供一刀具設置的刀座部,及一連接該裝設部及該刀座部且沿該軸線的徑向突出該裝設部的環部。該平衡件組包括一形成於該環部且繞該軸線呈圓環狀的環槽,及複數設置於該環槽內且可於該環槽內自由移動的質量物,該等質量物的總體積不超過該環槽的容積的一半,且當該等質量物相互集中而呈圓弧狀時,其圓弧角不超過180度。Therefore, the automatic balancing tool holder of the present invention includes a body and at least one balancing piece set. The body includes an installation portion extending along an axis and adapted to be installed on a main shaft of a machine tool, a tool holder portion opposite to the installation portion along the axis and adapted to be provided with a tool, and a connection to the equipment The ring portion of the mounting portion and the tool holder portion and protrudes in the radial direction of the axis along the mounting portion. The balance piece set includes a ring groove formed in the ring portion and formed in an annular shape around the axis, and a plurality of masses disposed in the ring groove and freely movable in the ring groove, the total mass of the masses The volume does not exceed half of the volume of the ring groove, and when the masses are concentrated in an arc shape, the arc angle does not exceed 180 degrees.
本發明之功效在於:藉由該平衡件組的該等質量物可於該環槽內自由移動,在整體轉動系統於高轉速的情況下,該等質量物會於該環槽內朝不平衡量的相反位置移動,如此可抑制因不平衡量所產生振動,進而減少該工具機的主軸與該刀把校正次數,並提高該工具機稼動率,且藉由該平衡件組的該環槽形成於該本體,使整體結構精簡且剛性較佳。The effect of the present invention is that the masses of the balance piece set can move freely in the ring groove, and under the condition that the overall rotation system is at a high speed, the masses will move toward the unbalanced amount in the ring groove The opposite position of the movement can suppress the vibration caused by the unbalanced amount, thereby reducing the number of corrections of the main shaft of the machine tool and the tool holder, and improving the working rate of the machine tool. The ring groove of the balance member group is formed in the The body makes the overall structure simpler and more rigid.
在本發明被詳細描述之前,應當注意在以下的說明內容中,類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.
參閱圖1與圖2,本發明自動平衡之工具機刀把之一第一實施例,適用於將一刀具2裝設在一工具機的一主軸1,該主軸1可受驅動繞一軸線L旋轉,該刀把包含一本體3,及二平衡件組4。於本實施例中,該刀把為BT型刀把,但不以此為限。1 and 2, a first embodiment of an automatic balancing tool holder of the present invention is suitable for installing a
參閱圖2至圖4,該本體3包括一沿該軸線L延伸且適用於裝設在該主軸1的裝設部31、一沿該軸線L相反於該裝設部31且適用於供該刀具2設置的刀座部32,及一連接該裝設部31及該刀座部32且沿該軸線L的徑向突出該裝設部31的環部33。該環部33具有一連接該裝設部31的上端面331、一相反於該上端面331且連接該刀座部32的下端面332,及一連接於該上端面331外緣及該下端面332外緣之間的外周面333。在其他實施態樣中,該本3體內部,可根據刀具夾持方式、刀把設置方式及刀把功能,而設有如筒夾、拉釘…等零件,且該本體3亦可設有切削液流道…等,而不以圖式所示為限。Referring to FIGS. 2 to 4, the
該平衡件組4包括一形成於該環部33且繞該軸線L呈圓環狀的環槽41、複數設置於該環槽41內且可於該環槽41內自由移動的質量物42,及一蓋板43。The
該環槽41開設於該本體3的下端面332,且具有一位於該下端面332的開口411。定義該軸線L沿一軸向D1延伸,該環槽41由該本體3的一槽底面34、一第一槽側面35,及一第二槽側面36所構成,該槽底面34沿該軸向D1間隔該下端面332,且該槽底面34具有一靠近該軸線L的內緣341,及一遠離該軸線L的外緣342,該第一槽側面35連接該內緣341及該下端面332,該第二槽側面36連接該外緣342。The
該蓋板43沿該軸向D1蓋設於該開口411,該蓋板43具有一呈平板狀且靠接於該下端面331的靠接部431,及一由該靠接部431沿該軸向D1延伸至該環槽41內的延伸部432,該延伸部432沿該軸向D1間隔該槽底面34。該本體3的該槽底面34、該第一槽側面35、該第二槽側面36及該延伸部432共同定義該環槽41的容積。在製造時,該蓋板43可於該等質量物42置入該環槽41後,以鎖固或焊接的方式固定於該下端面332,以密封該開口411。The
該等質量物42受該蓋板43限制而位於該環槽41內,且該等質量物42的總體積不超過該環槽41的容積的一半,且當該等質量物42相互集中而呈圓弧狀時,其圓弧角q不超過180度(見圖4)。The
於本實施例中,該等質量物42為滾珠且數量為偶數個,且該質量物42與潤滑油相混合,以降低該等質量物42在對應的環槽41內移動時,與該槽底面34及該第二槽側面36之間產生的摩擦力,而在其他實施態樣中,該等質量物42可為液體、固體或液體及固體的混合。In this embodiment, the
當該工具機的主軸1旋轉且轉速高於自然頻率時,每一平衡件組4的該等質量物42會朝不平衡量的相反方向移動,使整體轉動系統的質心無限接近該軸線L,如此便可抑制因不平衡量所產生振動,進而減少該工具機的主軸1與該刀把2校正次數,並提高該工具機稼動率。When the
此外,在其他實施態樣中,該等平衡件組4的數量可根據不平衡量產生的位置及程度,而僅設有一個或一個以上。此外,該平衡件組4的環槽41也可開設於該本體3的該上端面331及該下端面332的其中一者,如此,不僅使整體結構精簡且剛性較佳,且該第二槽側面36亦為該本體3的部分,而非外接的蓋板,而使該第二槽側面36不易因該等質量物的離心力影響產生變形,而能維持該環槽41的真圓度,使該等質量物42在滾動定位時,位置不會產生偏移。In addition, in other implementations, the number of the
而於本實施例中,該平衡件組4的該環槽41開設於該本體3的下端面332,除了可維持該環槽41的真圓度之外,還便於在製造時切削加工出該環槽41,以及便於該蓋板43在組設時鎖固或焊接固定。此外,由於該環槽41位於不平衡量產生的位置,可達到較佳的平衡效果,因此本實施例利用該蓋板43的延伸部432及該槽底面34相配合,可簡易地於製造時控制該環槽41於該軸向D1上的位置,如此便可簡單地控制該環槽41位於不平衡量產生的位置,再進一步說明的是,由於不平衡量易產生於該下端面332附近,因此本實施例將該環槽41設置於該下端面332,可達較佳的平衡效果。In this embodiment, the
值得一提的是,該槽底面34及該第二槽側面36可呈弧形使該等質量物42在各自的環槽41內滾動時,受導引而朝該蓋板43的方向浮起,以減少與該槽底面34及該第二槽側面36接觸的面積,降低摩擦力對該等質量物42的影響,使該等質量物42能較好地定位於不平衡量的反向位置,但該槽底面34及該第二槽側面36之形狀也可以是其他利於減少接觸面積的態樣,而不以此為限。It is worth mentioning that the
此外,由於每一平衡件組4的該等質量物42,在高速單向旋轉的情況下,方能穩定地移動並定位於不平衡量相反位置,因此,本實施例所適用的工具機,為具研磨功能的工具機,因研磨過程不會產生急速正反轉,使該等平衡件組4能確實達到平衡作用,但在其他實施態樣中,所適用之工具機類型不以此為限。In addition, since the
參閱圖5,本發明自動平衡之工具機刀把之一第二實施例類似於前述第一實施例,其差異僅在於:該刀把為HSK型刀把。Referring to FIG. 5, one of the second embodiments of the tool balance of the automatic balancing machine tool of the present invention is similar to the foregoing first embodiment, and the only difference is that the tool handle is an HSK type tool handle.
綜上所述,本發明自動平衡之工具機刀把,藉由該等質量物42可於該環槽41內自由移動,在整體轉動系統於高轉速的情況下,該等質量物42會朝不平衡量的相反位置移動,以抑制因不平衡量所產生振動,進而減少該工具機的主軸1與該刀把2校正次數,並提高該工具機稼動率,且藉由該環槽41形成於該本體3,使整體結構精簡且剛性較佳,故確實能達成本發明之目的。In summary, the tool balance of the automatic balancing machine tool of the present invention can move freely in the
惟以上所述者,僅為本發明之實施例而已,當不能以此限定本發明實施之範圍,凡是依本發明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,皆仍屬本發明專利涵蓋之範圍內。However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still classified as This invention covers the patent.
1:主軸1: spindle
2:刀具2: cutter
3:本體3: Ontology
31:裝設部31: Installation Department
32:刀座部32: knife seat
33:環部33: Ring
331:上端面331: upper end face
332:下端面332: Lower end face
333:外周面333: outer peripheral surface
34:槽底面34: groove bottom
341:內緣341: Inner edge
342:外緣342: outer edge
35:第一槽側面35: Side of the first slot
36:第二槽側面36: Side of the second slot
4:平衡件組4: balance piece group
41:環槽41: Ring groove
411:開口411: opening
42:質量物42: Mass
43:蓋板43: Cover
431:靠接部431: abutment
432:延伸部432: Extension
L:軸線L: axis
D1:軸向D1: axial
q:圓弧角q: arc angle
本發明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是本發明自動平衡之工具機刀把的一第一實施例將一刀具固定於一工具機的主軸的一組裝示意圖; 圖2是該實施例的一前視圖; 圖3是該實施例的一不完整的剖視示意圖 圖4是沿圖3中之線Ⅳ-Ⅳ所取得的一剖視示意圖,說明一平衡件組的複數質量物於一環槽內相互集中時的狀態;及 圖5是本發明自動平衡之工具機刀把的一第二實施例的一局部剖視前視圖。 Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is an assembly schematic diagram of a first embodiment of an automatic balancing tool holder of the present invention for fixing a tool to a main shaft of a machine tool; Figure 2 is a front view of the embodiment; FIG. 3 is an incomplete schematic cross-sectional view of the embodiment FIG. 4 is a schematic cross-sectional view taken along line IV-IV in FIG. 3, illustrating the state when a plurality of masses of a balance piece group are concentrated with each other in a ring groove; and Fig. 5 is a partially cut-away front view of a second embodiment of a tool balance of an automatic balancing machine tool of the present invention.
2:刀具 2: cutter
31:裝設部 31: Installation Department
32:刀座部 32: knife seat
33:環部 33: Ring
331:上端面 331: upper end face
332:下端面 332: Lower end face
34:槽底面 34: groove bottom
341:內緣 341: Inner edge
35:第一槽側面 35: Side of the first slot
36:第二槽側面 36: Side of the second slot
4:平衡件組 4: balance piece group
41:環槽 41: Ring groove
411:開口 411: opening
42:質量物 42: Mass
43:蓋板 43: Cover
431:靠接部 431: abutment
342:外緣 342: outer edge
432:延伸部 432: Extension
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TW108105652A TWI688449B (en) | 2019-02-20 | 2019-02-20 | Automatically balanced tool holder |
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TW108105652A TWI688449B (en) | 2019-02-20 | 2019-02-20 | Automatically balanced tool holder |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201408424A (en) * | 2012-08-29 | 2014-03-01 | Anderson Ind Corp | Dynamically balanced tool holder of processing machine and dynamic balance control system thereof |
CN203936687U (en) * | 2014-06-25 | 2014-11-12 | 株洲钻石切削刀具股份有限公司 | There is the handle of a knife of dynamic balance adjusting structure |
TWM538854U (en) * | 2016-12-21 | 2017-04-01 | Yeong Chin Machinery Industries Co Ltd | Machine tool spindle with multi-point incremental calibration dynamic balance |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201408424A (en) * | 2012-08-29 | 2014-03-01 | Anderson Ind Corp | Dynamically balanced tool holder of processing machine and dynamic balance control system thereof |
CN203936687U (en) * | 2014-06-25 | 2014-11-12 | 株洲钻石切削刀具股份有限公司 | There is the handle of a knife of dynamic balance adjusting structure |
TWM538854U (en) * | 2016-12-21 | 2017-04-01 | Yeong Chin Machinery Industries Co Ltd | Machine tool spindle with multi-point incremental calibration dynamic balance |
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