TWM609624U - Replaceable cutting tool - Google Patents
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- TWM609624U TWM609624U TW109216408U TW109216408U TWM609624U TW M609624 U TWM609624 U TW M609624U TW 109216408 U TW109216408 U TW 109216408U TW 109216408 U TW109216408 U TW 109216408U TW M609624 U TWM609624 U TW M609624U
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Abstract
一種替換式切削刀具,包含一刀桿及一嵌設於該刀桿的刀頭。該刀桿包括一沿軸向延伸的刀桿主體,及二間隔地凸設於該刀桿主體之一端的凸塊。該刀桿主體具有一供該等凸塊設置且呈環狀的第一端面,及一由該第一端面之內周緣軸向延伸並圍繞界定出一位於該等凸塊間之定位槽的內環面。該刀頭包括一軸向延伸的的刀頭主體,及至少一凸設於該刀頭主體之一端,並用以插設於該定位槽且能與該內環面相緊貼而維持同心度的定位塊。該刀頭主體具有一面向該第一端面,且凹陷形成二相間隔並分別供該等凸塊嵌設之凹槽的第二端面,使該刀頭與該刀桿齊轉動。A replaceable cutting tool includes a tool holder and a tool head embedded in the tool holder. The arbor includes a arbor main body extending in the axial direction, and two convex blocks protruding from one end of the arbor main body at intervals. The main body of the shank has a first end surface in which the protrusions are arranged and formed in a ring shape, and an inner periphery that axially extends from the inner periphery of the first end surface and surrounds and defines a positioning groove located between the protrusions Torus. The cutter head includes an axially extending cutter head main body, and at least one protruding on one end of the cutter head main body, and used for being inserted into the positioning groove and capable of being closely attached to the inner ring surface to maintain concentric positioning Piece. The cutter head main body has a second end surface facing the first end surface and recessed to form two spaced grooves for embedding the convex blocks respectively, so that the cutter head and the cutter shaft can rotate in unison.
Description
本新型是有關於一種切削刀具,特別是指一種替換式切削刀具。The new model relates to a cutting tool, in particular to a replaceable cutting tool.
參閱圖1與圖2,為一種習知的刀頭11,適用於透過一螺絲12而連接於一刀桿13,該刀桿13由端面向內凹陷而依序形成一軸向延伸且呈圓柱狀的第一通槽131、一連通該第一通槽131且外徑小於該第一通槽131的第二通槽132,及一連通該第二通槽132且內徑小於該第二通槽132,並用以供該螺絲12螺設的內螺孔133。該刀頭11可與該刀桿13相嵌合,且呈中空狀而圍繞形成一軸向延伸且供該螺絲12穿伸的通孔110。該刀頭11包括一呈圓環狀的定位部111、一由該定位部111之一端朝遠離該刀桿13之方向延伸且外徑大於該定位部111之外徑的承接部112,一圍繞該承接部112之一端且形成數個刀刃114(圖2因簡化圖示而省略)的切削部113。1 and 2, there is a
利用該螺絲12穿過該刀頭11之通孔110,並螺接於該刀桿上13之內螺孔133,使該刀頭11可脫離地固定在該刀桿13上,並隨著該刀桿13轉動,藉此透過該等刀刃114進行切削作業。再者,透過該定位部111與該第二通槽132相嵌合,及該承接部112與該第一通槽131相嵌合的機械機制,用以減少該刀頭11與該刀桿13之間的同心度誤差,便能避免加工時產生偏擺的情況,藉此維持加工的精準度。The
然而,在實際情況中,該刀頭11本身並無螺紋而能螺設於該刀桿13或是供該螺絲12螺設,且亦無任何用以固定的卡合裝置。故當該刀桿13高速轉動時,該刀頭11和該刀桿13間有相對轉動的可能性,導致該刀桿13常無法實時地帶動該刀頭11旋轉,往往面臨該刀桿13空轉而降低切削效率的問題。因此,面對上述缺失,有必要尋求解決之道。However, in actual situations, the
因此,本新型之目的,即在提供一種能保持高同心度,且能避免空轉的替換式切削刀具。Therefore, the object of the present invention is to provide a replaceable cutting tool that can maintain high concentricity and avoid idling.
於是,本新型替換式切削刀具,包含一刀桿、一可脫離地設置於該刀桿上的刀頭,及一穿設於該刀桿與該刀頭的鎖固件。該刀桿包括一沿一軸線延伸的刀桿主體,及二間隔地凸設於該刀桿主體之一端的凸塊。該刀桿主體具有一供該等凸塊設置且呈環狀的第一端面,及一由該第一端面之內周緣沿該軸線延伸,並圍繞界定出一位於該等凸塊間之定位槽的內環面。該刀頭包括一沿該軸線延伸的刀頭主體、至少一凸設於該刀頭主體之一端並用以插設於該定位槽而能與該內環面相緊貼的定位塊,及至少一設置於該刀頭主體之外周圍的刀刃。該刀頭主體具有一面向該第一端面,且凹陷形成二相間隔並分別供該等凸塊嵌設之凹槽的第二端面。該鎖固件沿該軸線延伸,並可沿軸線之方向同時穿設於該刀頭與該刀桿,用以使該刀頭固定在該刀桿上。Therefore, the replaceable cutting tool of the present invention includes a tool bar, a tool head detachably arranged on the tool bar, and a locking member penetrating the tool bar and the tool head. The knife bar includes a knife bar main body extending along an axis, and two convex blocks protruding from one end of the knife bar main body at intervals. The main body of the tool bar has a first end surface in which the protrusions are arranged and in a ring shape, and a first end surface extends along the axis from the inner periphery of the first end surface, and surrounds and defines a positioning groove located between the protrusions的内环面。 The inner ring surface. The cutter head includes a cutter head main body extending along the axis, at least one positioning block protruding from one end of the cutter head main body and used to be inserted into the positioning groove so as to be in close contact with the inner ring surface, and at least one positioning block The blade around the main body of the cutter head. The cutter head body has a second end surface facing the first end surface and recessed to form two spaced grooves for embedding the convex blocks. The locking member extends along the axis, and can pass through the cutter head and the cutter bar at the same time in the direction of the axis, so as to fix the cutter head on the cutter bar.
本新型之功效在於:透過該至少一定位塊緊貼於該內環面,使得該刀桿與該刀頭間能維持較高的同心度而不偏擺,再配合該等凸塊嵌設於該等凹槽內的結構機制,便能使該刀桿實時帶動該刀頭以該軸線為轉軸轉動,避免空轉的情況發生,藉此提高切削效率。The effect of the present invention is that the at least one positioning block is closely attached to the inner ring surface, so that a high degree of concentricity can be maintained between the cutter bar and the cutter head without deflection, and the convex blocks are embedded in the By waiting for the structural mechanism in the groove, the cutter bar can drive the cutter head to rotate around the axis in real time to avoid idling, thereby improving the cutting efficiency.
參閱圖3至圖5,為本新型替換式切削刀具之一實施例,包含一刀桿2、一可脫離地設置於該刀桿2上的刀頭3,及一穿設於該刀桿2與該刀頭3的鎖固件4。定義一上下延伸的軸線L1、一垂直該軸線L1並徑向通過該刀桿2的第一參考線L2、一垂直該軸線L1與該第一參考線L2並徑向通過該刀桿2的第二參考線L3,及一垂直該軸線L1且與該第一參考線L2相互平行,並徑向通過該刀頭3的第三參考線L4。Refer to Figures 3 to 5, which is an embodiment of the new alternative cutting tool, which includes a
該刀桿2包括一沿該軸線L1延伸的刀桿主體21,二間隔地凸設於該刀桿主體21之末端的凸塊22。該刀桿主體21具有一供該等凸塊22設置且呈環狀的第一端面211、一由該第一端面211之內周緣沿該軸線L1延伸並圍繞該軸線L1的內環面212,及一由該內環面212沿該軸線L1向內延伸並圍繞該軸線L1的內螺面213。其中,該內環面212界定出一概呈圓柱狀且以該軸線L1為中心線的定位槽214,該內螺面213界定出一連通該定位槽214且內徑小於該定位槽214的內螺孔215。該等凸塊22分別由該第一端面211之外周緣沿該第一參考線L2延伸而呈長條狀,並分別位於該第二參考線L3之兩側而對稱地設置在該定位槽214旁。另外需要說明的是,該刀桿2可供一機具操作,而以該軸線L1為轉軸轉動。The
該刀頭3包括一沿該軸線L1延伸的的刀頭主體31、二凸設於該刀頭主體31之一端並分別對稱地位於該軸線L1之兩側的定位塊32,及數個設置於該刀頭主體31之外周圍壁並用以切削的刀刃33。該刀頭主體31具有一面向該第一端面211且呈環狀的第二端面311,及一由該第二端面311之內周緣沿該軸線L1延伸並圍繞該軸線L1的內周面312。該第二端面311向內凹陷形成二彼此間隔而位於該軸線L1之兩側,且沿該第三參考線L4延伸而呈長條狀,並能分別供該等凸塊22嵌設的凹槽313,該內周面312界定出一連通該等凹槽313的第一通孔310。該等定位塊32用以插設於該定位槽214,並分別設置於該第三參考線L4之兩側。其中,每一定位塊32具有一能與該內環面212相緊貼的圓弧面321,及一相反於該圓弧面321並與另一定位塊32間隔界定出一連通該第一通孔310之第二通孔320的內弧面322。The
該鎖固件4沿該軸線L1延伸,並可沿該軸線L1之方向同時穿設於該刀頭3與該刀桿2,而用以使該刀頭3固定在該刀桿2上。該鎖固件4包括一可穿伸於該第一通孔310與該第二通孔320的長桿部41,及一由該長桿部41之一端延伸並形成外螺紋而用以螺接於該內螺孔215的螺接部42。The
另外需要說明的是,該刀頭3可依照不同的加工需求及規格尺寸而進行調整。如圖3所示,當該刀頭3之尺寸需求較大時,該刀頭主體31之頂部露出於該等刀刃33,藉此提升整體強度。如圖6所示,當該刀頭3之尺寸需求適中時,該等刀刃33覆設於該刀頭主體31之外周圍,達到較佳的空間使用而能節省用料。如圖7所示,當該刀頭3之尺寸需求較小時,為了避免加工困難,位於該第三參考線L4上的該等刀刃33其中兩者,能分別形成一延伸槽330。每一延伸槽330連通相對應之該凹槽313,藉此,在實際生產製造時,僅需使用加工刀具沿該第三參考線L4,剖出該等凹槽313及該等延伸槽330,進而達成簡化加工之目的。In addition, it should be noted that the
重新參閱圖3至圖5,組裝本實施例時,將該刀頭主體31之第二端面311對準該刀桿主體21之第一端面211,並將該等凸塊22分別對準該等凹槽313,再讓該刀頭3沿著該軸線L1之方向嵌設於該刀桿2,使得該等定位塊32與該內環面212相互緊貼。接著,將該鎖固件4之螺接部42依序穿過該第一通孔310、該第二通孔320,最後穿設於該內螺孔215中而與該內螺面213相互螺接,便能將該刀頭3穩固地定位於該刀桿2上,完成組裝作業。特別需要說明的是,本實施例可輕易地替換不同類型的該刀頭3,例如銑刀、鉸刀、擴孔刀、滾光刀等機械加工刀具,以滿足不同的加工需求或是汰舊換新,獲得較高的適用性。3 to 5 again, when assembling this embodiment, the
當該等定位塊32插設於該定位槽214內時,由於該等圓弧面321與該內環面212相互緊貼,使得該刀桿2與該刀頭3間能維持較高的同心度,避免加工操作時發生偏擺的情況,以此維持加工的精準度。再者,當該刀桿2高速轉動時,藉由該等凸塊22分別嵌設於該等凹槽313,而能沿周向地實時推動該刀頭3轉動,藉此減少該刀桿2和該刀頭3間相對轉動的可能性,用以防止該刀桿2空轉,進而增加切削效率。When the
重新參閱圖5,由於該刀桿主體21之第一端面211與該刀頭主體31之第二端面311相互緊密貼合,同時配合該刀桿主體21之內環面212與該等定位塊32之圓弧面321相互緊密貼合,使得該刀桿2與該刀頭3之間產生兩面拘束的功效,進一步避免該刀桿2旋轉時發生偏擺的現象,藉此提高切削剛性,以符合高速加工的需求。5 again, because the
綜上所述,本新型替換式切削刀具透過該等定位塊32與該定位槽214的相配合,使得該刀桿2與該刀頭3能維持較高的同心度。此外,該等凸塊22分別與該等凹槽313相嵌合的設計,讓該刀桿2轉動時能實時帶動該刀頭3一同旋轉,避免空轉的情況發生,故確實能達成本新型之目的。In summary, the replacement cutting tool of the present invention allows the
惟以上所述者,僅為本新型之實施例而已,當不能以此限定本新型實施之範圍,凡是依本新型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,皆仍屬本新型專利涵蓋之範圍內。However, the above are only examples of the present model, and should not be used to limit the scope of implementation of the present model, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.
2:刀桿 21:刀桿主體 211:第一端面 212:內環面 213:內螺面 214:定位槽 215:內螺孔 22:凸塊 3:刀頭 31:刀頭主體 310:第一通孔 311:第二端面 312:內周面 313:凹槽 32:定位塊 320:第二通孔 321:圓弧面 322:內弧面 33:刀刃 330:延伸槽 4:鎖固件 41:長桿部 42:螺接部 L1:軸線 L2:第一參考線 L3:第二參考線 L4:第三參考線 2: Toolholder 21: The main body of the arbor 211: first end face 212: inner ring surface 213: Inner screw surface 214: positioning slot 215: Internal screw hole 22: bump 3: cutter head 31: The main body of the cutter head 310: first through hole 311: second end face 312: inner peripheral surface 313: Groove 32: positioning block 320: second through hole 321: arc surface 322: Inner Curved Surface 33: Blade 330: Extension slot 4: lock firmware 41: Long pole 42: Screw connection part L1: axis L2: The first reference line L3: Second reference line L4: Third reference line
本新型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是一立體圖,說明一種習知的刀頭; 圖2是一不完整的側視剖視圖,說明該刀頭設置於一刀桿上; 圖3是一不完整的立體分解圖,說明本新型替換式切削刀具之一實施例; 圖4是一不完整的側視圖,說明該實施例之一刀桿,及一刀頭沿一軸線之方向連接的情況; 圖5是一不完整的側視剖視圖,說明該實施例之該刀桿、該刀頭及一鎖固件的結合情況;及 圖6與圖7皆為立體圖,分別說明該刀頭不同的態樣。 The other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, among which: Figure 1 is a perspective view illustrating a conventional cutter head; Figure 2 is an incomplete cross-sectional side view illustrating that the cutter head is set on a cutter bar; Figure 3 is an incomplete three-dimensional exploded view illustrating an embodiment of the new alternative cutting tool; Figure 4 is an incomplete side view illustrating the connection of a cutter bar and a cutter head in the direction of an axis in this embodiment; Figure 5 is an incomplete cross-sectional side view illustrating the combination of the tool bar, the tool head and a locking member of the embodiment; and Fig. 6 and Fig. 7 are both three-dimensional views, respectively illustrating different aspects of the cutter head.
2:刀桿 2: Toolholder
21:刀桿主體 21: Toolholder body
211:第一端面 211: first end face
212:內環面 212: inner ring surface
213:內螺面 213: Inner screw surface
214:定位槽 214: positioning slot
215:內螺孔 215: Internal screw hole
22:凸塊 22: bump
3:刀頭 3: cutter head
31:刀頭主體 31: The main body of the cutter head
311:第二端面 311: second end face
313:凹槽 313: Groove
32:定位塊 32: positioning block
320:第二通孔 320: second through hole
321:圓弧面 321: arc surface
322:內弧面 322: Inner Curved Surface
33:刀刃 33: Blade
4:鎖固件 4: lock firmware
41:長桿部 41: Long pole
42:螺接部 42: Screw connection part
L2:第一參考線 L2: The first reference line
L3:第二參考線 L3: Second reference line
L4:第三參考線 L4: Third reference line
Claims (10)
Priority Applications (1)
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TW109216408U TWM609624U (en) | 2020-12-11 | 2020-12-11 | Replaceable cutting tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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TW109216408U TWM609624U (en) | 2020-12-11 | 2020-12-11 | Replaceable cutting tool |
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TWM609624U true TWM609624U (en) | 2021-03-21 |
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TW109216408U TWM609624U (en) | 2020-12-11 | 2020-12-11 | Replaceable cutting tool |
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2020
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