TWM581952U - Milling cutter structure - Google Patents

Abstract

一種銑刀結構，包含一刀具本體以及複數切削齒，刀具本體的中央設有一穿孔，複數切削齒彼此相隔一固定間距地設置於刀具本體的外緣，各個切削齒各自具有一頂面、一切削面及一背面，頂面的相對二側邊分別連接切削面及背面，切削面為凹弧面，頂面及切削面之連接線形成一切削刃，切削面及相鄰的切削齒的背面形成一排屑槽。藉由凹弧面的切削面，排屑槽具有更大的容納空間，且切削的碎屑亦更容易沿著弧面的切削面而排出。A milling cutter structure includes a cutter body and a plurality of cutting teeth, wherein a center of the cutter body is provided with a perforation, and the plurality of cutting teeth are disposed at a fixed distance from each other at an outer edge of the cutter body, and each of the cutting teeth has a top surface and a cutting a surface and a back surface, the opposite sides of the top surface are respectively connected to the cutting surface and the back surface, the cutting surface is a concave curved surface, and the connecting line between the top surface and the cutting surface forms a cutting edge, and the cutting surface and the back surface of the adjacent cutting teeth are formed. A row of flutes. By the concave cutting surface, the chip flute has a larger accommodation space, and the cut debris is more easily discharged along the cutting surface of the arc surface.

Description

銑刀結構Milling cutter structure

本創作係提供一種切削工具，尤指一種銑刀結構。This creation provides a cutting tool, especially a milling cutter structure.

銑刀是常用於銑床或加工機的切削工具，以執行銑削操作。當銑刀旋轉時，待切割的物件被送入銑刀，銑刀的每個齒部會依序切削掉一小塊材料而產生大量碎屑。銑刀是否具有有效排除碎屑能力在加工程序中相當重要，若排除碎屑能力不佳，碎屑阻塞在銑刀的凹槽中，不僅使得銑刀難以繼續執行切割，還會導致銑刀振動、磨損和過熱。Milling cutters are cutting tools commonly used in milling machines or machine tools to perform milling operations. When the milling cutter rotates, the object to be cut is fed into the milling cutter, and each tooth of the milling cutter cuts a small piece of material in sequence to generate a large amount of debris. Whether the milling cutter has the ability to effectively remove debris is very important in the machining program. If the ability to remove debris is not good, the debris will block in the groove of the milling cutter, which will not only make it difficult for the milling cutter to continue cutting, but also cause the milling cutter to vibrate. , wear and overheating.

有鑑於上述習知技術之缺憾，創作人有感其未臻於完善，遂竭其心智悉心研究克服，進而研發出一種有效排除碎屑的銑刀結構。In view of the shortcomings of the above-mentioned prior art, the creator feels that he has not perfected it, exhausted his mind to study and overcome it, and developed a milling cutter structure that effectively eliminates debris.

為達上述目的及其他目的，本創作係提供一種銑刀結構，其包含：一刀具本體，該刀具本體的中央設有一穿孔；以及複數切削齒，彼此相隔一固定間距地設置於該刀具本體的外緣，該等切削齒各自具有一頂面、一切削面及一背面，該頂面的相對二側邊分別連接該切削面及該背面，該切削面為凹弧面，該頂面及該切削面之連接線形成一切削刃，該切削面及相鄰的切削齒的背面形成一排屑槽。In order to achieve the above and other objects, the present invention provides a milling cutter structure comprising: a cutter body having a through hole in a center thereof; and a plurality of cutting teeth disposed at a fixed distance from each other on the cutter body An outer edge, each of the cutting teeth has a top surface, a cutting surface and a back surface, wherein the opposite sides of the top surface respectively connect the cutting surface and the back surface, the cutting surface is a concave curved surface, the top surface and the The connecting line of the cutting face forms a cutting edge which forms a chip flute on the back side of the adjacent cutting tooth.

上述的可調整的銑刀結構中，該等切削齒係一體成形於該刀具本體的外緣。In the above-described adjustable milling cutter structure, the cutting gears are integrally formed on the outer edge of the cutter body.

上述的可調整的銑刀結構中，該頂面及該切削面之夾角為銳角。In the above adjustable milling cutter structure, the angle between the top surface and the cutting surface is an acute angle.

上述的可調整的銑刀結構中，該頂面及該背面之夾角為鈍角。In the above adjustable milling cutter structure, the angle between the top surface and the back surface is an obtuse angle.

上述的可調整的銑刀結構中，該背面的長度，長於該切削刃到該排屑槽的底部的連線。In the above-described adjustable milling cutter structure, the length of the back surface is longer than the line connecting the cutting edge to the bottom of the chip flute.

藉此，本創作之銑刀結構相較於先前技術，具有凹弧面的切削面，不僅加大了排屑槽的空間，可以容納更多碎屑，且凹弧面亦有助於碎屑沿切削面移動，使碎屑不留滯於排屑槽中而能順利自銑刀結構中排出，延長銑刀的使用壽命。Therefore, the milling cutter structure of the present invention has a concave curved surface than the prior art, which not only increases the space of the chip flute, but also can accommodate more debris, and the concave arc surface also contributes to the debris. Moving along the cutting surface, the debris can be smoothly discharged from the milling cutter structure without leaving the chip in the chip flute, prolonging the service life of the milling cutter.

為充分瞭解本創作之目的、特徵及功效，茲藉由下述具體之實施例，並配合所附之圖式，對本創作做一詳細說明，說明如後：In order to fully understand the purpose, features and effects of this creation, the following specific examples, together with the attached drawings, provide a detailed description of the creation, as explained below:

如圖1所示，本創作係提供一種銑刀結構100，可拆卸地設置於一刀柄H上以隨刀柄H旋轉，用以切削一待加工物W。As shown in FIG. 1, the present invention provides a milling cutter structure 100 detachably disposed on a shank H for rotation with the shank H for cutting a workpiece W.

如圖2及圖3所示，銑刀結構100包含一刀具本體1以及複數切削齒2。刀具本體1的中央設有一穿孔11，可供套設於刀柄H。As shown in FIGS. 2 and 3, the milling cutter structure 100 includes a tool body 1 and a plurality of cutting teeth 2. The center of the cutter body 1 is provided with a through hole 11 for being sleeved on the shank H.

複數切削齒2彼此相隔一固定間距地設置於刀具本體1的外緣。這些切削齒2各自具有一頂面21、一切削面22及一背面23，頂面21的相對二側邊分別連接切削面22及背面23。其中切削面22為凹弧面，頂面21及切削面22之連接線形成一切削刃24，切削面22及相鄰的切削齒2的背面23形成一排屑槽F。The plurality of cutting teeth 2 are disposed on the outer edge of the cutter body 1 at a fixed interval from each other. Each of the cutting teeth 2 has a top surface 21, a cutting surface 22 and a back surface 23, and the opposite sides of the top surface 21 are connected to the cutting surface 22 and the back surface 23, respectively. The cutting surface 22 is a concave curved surface, and the connecting line of the top surface 21 and the cutting surface 22 forms a cutting edge 24, and the cutting surface 22 and the back surface 23 of the adjacent cutting tooth 2 form a chip flute F.

當銑刀結構100旋轉時，各個切削齒2的切削刃24依序切割待加工物W，被切割的碎屑則沿凹弧面的切削面22進入排屑槽F再脫出。凹弧面的切削面22加大了排屑槽F的空間，可以容納更多碎屑（換句話說，使排屑槽F更不容易被阻塞），且凹弧面亦有助於碎屑沿切削面22移動，使碎屑不留滯於排屑槽F中。When the milling cutter structure 100 rotates, the cutting edges 24 of the respective cutting teeth 2 sequentially cut the workpiece W, and the cut debris enters the chip flute F along the cutting surface 22 of the concave curved surface and then comes out. The concave curved face 22 increases the space of the flutes F, can accommodate more debris (in other words, makes the flutes F less likely to be blocked), and the concave arc also contributes to debris Moving along the cutting face 22 prevents debris from remaining in the flutes F.

經過測試，傳統的不具有凹弧面的銑刀結構100其削出來的鐵屑色溫為藍色（高溫），而本創作的具有凹弧面的銑刀結構100其削出來的鐵屑色溫為白。即，本創作的銑刀結構100能夠保持最低溫、低阻力的狀態加工，並保持最快的進給率、最低摩擦力並以最小力道切割。從一開始全新的銑刀到銑刀壽命結束，都能夠保持穩定優秀的切割過程，且相對於傳統銑刀，其壽命更長、排屑更快、切削力更輕、進給率也更快，是為優秀的改良銑刀，具有其重要性與進步性。After testing, the traditional milling cutter structure 100 having no concave curved surface has a color temperature of blue (high temperature), and the color temperature of the iron filings of the milled cutter structure 100 having the concave curved surface is White. That is, the mill cutter structure 100 of the present invention can maintain the lowest temperature, low resistance state processing, and maintain the fastest feed rate, minimum friction and cut with minimum force. From the beginning of the new milling cutter to the end of the life of the milling cutter, it maintains a stable and excellent cutting process, and it has a longer life, faster chip removal, lighter cutting force and faster feed rate than conventional milling cutters. It is an excellent modified milling cutter with its importance and progress.

進一步地，在一個實施例中，如圖1至圖3所示，切削齒2係一體成形於刀具本體1的外緣。如此使切削齒2不必透過其他手段連接於刀具本體1，切削齒2不脫落、更為耐用，亦縮減元件數量與組裝手續。Further, in one embodiment, as shown in FIGS. 1 to 3, the cutting teeth 2 are integrally formed on the outer edge of the cutter body 1. In this way, the cutting teeth 2 are not necessarily connected to the tool body 1 by other means, and the cutting teeth 2 are not peeled off and are more durable, and the number of components and assembly procedures are also reduced.

進一步地，在一個實施例中，如圖2及圖3所示，頂面21及切削面22之夾角為銳角，使形成的切削刃24利於切削。Further, in one embodiment, as shown in FIGS. 2 and 3, the angle between the top surface 21 and the cutting surface 22 is an acute angle, so that the formed cutting edge 24 facilitates cutting.

並且，頂面21及背面23之夾角為鈍角，排屑槽F中的背面23的長度，長於切削刃24到排屑槽F的底部的連線。藉由如此設計，排屑槽F的開口方向相對銑刀結構100的徑向有一偏斜方向，當此偏斜方向順向於圖1的旋轉方向時，被切削的碎屑更容易自排屑槽F脫出。Further, the angle between the top surface 21 and the back surface 23 is an obtuse angle, and the length of the back surface 23 in the chip flute F is longer than the line connecting the cutting edge 24 to the bottom of the chip flute F. With such a design, the opening direction of the chip flute F has a skew direction with respect to the radial direction of the milling cutter structure 100. When the deflecting direction is oriented in the direction of rotation of FIG. 1, the cut debris is more likely to self-drill. The groove F is taken out.

本創作在上文中已以較佳實施例揭露，然熟習本項技術者應理解的是，該實施例僅用於描繪本創作，而不應解讀為限制本創作之範圍。應注意的是，舉凡與該實施例等效之變化與置換，均應設為涵蓋於本創作之範疇內。因此，本創作之保護範圍當以申請專利範圍所界定者為準。The present invention has been disclosed in the above preferred embodiments, and it should be understood by those skilled in the art that the present invention is only intended to depict the present invention and should not be construed as limiting the scope of the present invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of this creation is subject to the definition of the scope of patent application.

100‧‧‧銑刀結構100‧‧‧ milling cutter structure

1‧‧‧刀具本體 1‧‧‧Tool body

11‧‧‧穿孔 11‧‧‧Perforation

2‧‧‧切削齒 2‧‧‧ cutting teeth

21‧‧‧頂面 21‧‧‧ top surface

22‧‧‧切削面 22‧‧‧ cutting surface

23‧‧‧背面 23‧‧‧Back

24‧‧‧切削刃 24‧‧‧ cutting edge

F‧‧‧排屑槽 F‧‧‧chip flute

H‧‧‧刀柄 H‧‧‧Knife

W‧‧‧待加工物 W‧‧‧Processing

圖1係本創作較佳具體實施例銑刀結構之使用示意圖。 圖2係本創作較佳具體實施例銑刀結構之立體示意圖。 圖3係本創作較佳具體實施例銑刀結構之平面示意圖。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the use of a milling cutter structure in accordance with a preferred embodiment of the present invention.  2 is a perspective view of a milling cutter structure in accordance with a preferred embodiment of the present invention.  Figure 3 is a plan view showing the structure of a milling cutter in accordance with a preferred embodiment of the present invention.  

Claims (5)

一種銑刀結構，其包含： 一刀具本體，該刀具本體的中央設有一穿孔；以及 複數切削齒，彼此相隔一固定間距地設置於該刀具本體的外緣，該等切削齒各自具有一頂面、一切削面及一背面，該頂面的相對二側邊分別連接該切削面及該背面，該切削面為凹弧面，該頂面及該切削面之連接線形成一切削刃，該切削面及相鄰的切削齒的背面形成一排屑槽。 A milling cutter structure comprising:  a cutter body having a through hole in a center of the cutter body;  a plurality of cutting teeth are disposed on the outer edge of the tool body at a fixed distance from each other. Each of the cutting teeth has a top surface, a cutting surface and a back surface, and the opposite sides of the top surface are respectively connected to the cutting surface and The cutting surface is a concave curved surface, and the connecting line between the top surface and the cutting surface forms a cutting edge, and the cutting surface and the back surface of the adjacent cutting teeth form a chip flute.   如請求項1所述之銑刀結構，其中該等切削齒係一體成形於該刀具本體的外緣。The milling cutter structure of claim 1, wherein the cutting gears are integrally formed on an outer edge of the cutter body. 如請求項1所述之銑刀結構，其中該頂面及該切削面之夾角為銳角。The milling cutter structure of claim 1, wherein an angle between the top surface and the cutting surface is an acute angle. 如請求項3所述之銑刀結構，其中該頂面及該背面之夾角為鈍角。The milling cutter structure of claim 3, wherein an angle between the top surface and the back surface is an obtuse angle. 如請求項1所述之銑刀結構，其中該背面的長度，長於該切削刃到該排屑槽的底部的連線。The milling cutter structure of claim 1, wherein the length of the back surface is longer than the line connecting the cutting edge to the bottom of the chip flute.