JP3181347U - Cutting tools - Google Patents
Cutting tools Download PDFInfo
- Publication number
- JP3181347U JP3181347U JP2012007069U JP2012007069U JP3181347U JP 3181347 U JP3181347 U JP 3181347U JP 2012007069 U JP2012007069 U JP 2012007069U JP 2012007069 U JP2012007069 U JP 2012007069U JP 3181347 U JP3181347 U JP 3181347U
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- Prior art keywords
- cutting tool
- shank
- cutting
- diameter
- depth
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- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/02—Connections between shanks and removable cutting heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/02—Connections between the shanks and detachable cutting heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Milling Processes (AREA)
- Knives (AREA)
Abstract
【課題】歩留まりが向上し、かつ被削性が強化された切削工具を提供する。
【解決手段】切削工具は、シャンク部２０と刃部１０を含み、シャンク部２０の前端は、第一深さＨを有するシャンク穴２１を設置し、刃部の後端は固定部１２を形成する。固定部１２は、シャンク部のシャンク穴内に圧入され、且つ、固定部を挿入するシャンク穴の第二深さｈと第一深さＨの比率を０．７５〜０．９５として、被削性（ｍａｃｈｉｎａｂｉｌｉｔｙ）を強化する。
【選択図】図３A cutting tool with improved yield and enhanced machinability is provided.
A cutting tool includes a shank portion and a blade portion. A front end of the shank portion is provided with a shank hole having a first depth H, and a rear end of the blade portion forms a fixing portion. To do. The fixing part 12 is press-fitted into the shank hole of the shank part, and the ratio of the second depth h to the first depth H of the shank hole into which the fixing part is inserted is set to 0.75 to 0.95. (Machability) is strengthened.
[Selection] Figure 3
Description
本考案は、切削工具に関するものであって、特に、刃部とシャンク部が圧入接合する切削工具構造に関するものである。 The present invention relates to a cutting tool, and particularly to a cutting tool structure in which a blade portion and a shank portion are press-fitted and joined.
一般の切削工具は、高硬度のタングステンカーバイド材質から構成され、ドリル、研磨作業を実施後、刃部が摩損する。一般に、フライスやドリルビットの刃部は、磨損後、廃品になる。タングステンカーバイド材料はコストが高いので、経済的でなく、よって、現在、接合式の切削工具を使用し、廃品になった切削工具は回收使用している。切削工具後端のシャンク部のタングステンカーバイド棒材にはまだ利用価値があるので、この部位をさらに研磨加工してフライスの刃部を成し、加工後のタングステンカーバイド材質の刃部後端のシャンク部を、コストが安い鋼棒材前端のシャンク穴中に溶接して、工具機が挾持できるシャンク部を形成し、重複利用して、生産コストを減少させる目的を達成する。 A general cutting tool is made of a tungsten carbide material having a high hardness, and the blade portion is worn after drilling and polishing operations. In general, the blades of milling cutters and drill bits are discarded after being worn out. Tungsten carbide materials are expensive and are not economical, so currently, joint-type cutting tools are used, and scrapped cutting tools are collected and used. The tungsten carbide bar material at the shank at the rear end of the cutting tool is still useful, so this part is further polished to form the milling blade, and the shank at the rear end of the tungsten carbide material after processing. The part is welded into a shank hole at the front end of a steel bar material at a low cost to form a shank part that can be held by a tool machine, and is used in duplicate to achieve the purpose of reducing production costs.
図１は、従来の接合式切削工具の断面図である。刃部1後端の固定部１ａは、圧入方式で、シャンク部２のシャンク穴２ａと互いに接合させているが、切削工具の製造工程と公差の要素のため、固定部１ａがシャンク穴２ａに圧入される時、シャンク穴２ａの内壁と刃部1の後端が互いに摩擦して、若干の金属屑をシャンク穴２ａ底部に残し、固定部１ａがシャンク穴２ａ中にしっかりと挿入されず、歩留まりに影響する。 FIG. 1 is a cross-sectional view of a conventional joining type cutting tool. The fixing part 1a at the rear end of the blade part 1 is press-fitted and joined to the shank hole 2a of the shank part 2, but the fixing part 1a is inserted into the shank hole 2a because of the manufacturing process and tolerance of the cutting tool. When press-fitted, the inner wall of the shank hole 2a and the rear end of the blade part 1 rub against each other, leaving some metal debris at the bottom of the shank hole 2a, and the fixed part 1a is not firmly inserted into the shank hole 2a. Affects yield.
また、接合式切削工具の切削実施において、縦方向の掘削力と横からのシフトの切削力を受けなければならず、図１に示されるように、シャンク部の接合部２ｂは、錐状構造設計を採用するので、切削工具の切削時、縦方向の掘削応力と横からの切削力を受け、接合部２ｂの錐状角構造の幾何変化が大きいので、切削作業時に応力集中を生じやすく、シャンク部２が刃部1を挟持するのが緩み、ひどい時には、刃部1とシャンク部２が崩壊する。 Further, in the cutting operation of the joining type cutting tool, it is necessary to receive a longitudinal excavating force and a cutting force shifted from the side. As shown in FIG. 1, the joining portion 2b of the shank portion has a conical structure. Since the design is adopted, when cutting the cutting tool, it receives the vertical excavation stress and the cutting force from the side, and since the geometric change of the cone-shaped angular structure of the joint 2b is large, stress concentration is likely to occur during the cutting work, When the shank part 2 loosens the blade part 1 and is severe, the blade part 1 and the shank part 2 collapse.
上述の目的を解決するため、本考案は、被削性を強化した切削工具を提供することを目的とする。 In order to solve the above-mentioned object, an object of the present invention is to provide a cutting tool with enhanced machinability.
上述の目的を達成するため、本考案の好ましい実施例による切削工具は、シャンク部と刃部を含む。シャンク部の前端面にシャンク穴を設置し、且つ、シャンク穴は第一深さを有する。刃部は、切削刃部と、切削刃部の一端に延設される固定部と、を有し、固定部はシャンク穴中に挿設され、シャンク穴中に挿設される固定部の深さは第二深さで、第二深さと第一深さの比率は０．７５〜０．９５の間である。 In order to achieve the above object, a cutting tool according to a preferred embodiment of the present invention includes a shank portion and a blade portion. A shank hole is provided in the front end face of the shank portion, and the shank hole has a first depth. The blade portion has a cutting blade portion and a fixing portion extending to one end of the cutting blade portion, the fixing portion is inserted into the shank hole, and the depth of the fixing portion inserted into the shank hole. The height is the second depth, and the ratio of the second depth to the first depth is between 0.75 and 0.95.
本考案の別の好ましい実施例による切削工具は、シャンク部と刃部を含む。シャンク部の前段は、前端面に向かって徐々に狭くなる錐状頸部を形成し、且つ、錐状頸部の外表面は円弧状である。刃部の固定部は円棒状で、固定部の末端は、円弧形状か直角面取りに加工し、シャンク部のシャンク穴は円柱形で、直径は、固定部の直径０〜２０μｍより小さい。固定部が、シャンク部に挿入される時、固定部の円弧形状や面取りの末端を利用して、シャンク部のシャンク穴の中心に照準させるのを補助し、圧入裝置を利用して、直接、固定部をシャンク穴中に圧入し、シャンク部と刃部が緊密に嵌合して一体になる。 A cutting tool according to another preferred embodiment of the present invention includes a shank portion and a blade portion. The front stage of the shank portion forms a conical neck that gradually narrows toward the front end surface, and the outer surface of the conical neck has an arc shape. The fixed part of the blade part is in the shape of a rod, the end of the fixed part is processed into an arc shape or a right-angle chamfer, the shank hole of the shank part is cylindrical, and the diameter is smaller than the diameter of the fixed part of 0-20 μm. When the fixed part is inserted into the shank part, it uses the arc shape of the fixed part or the end of the chamfer to assist in aiming at the center of the shank hole of the shank part, and directly using the press-fitting device, The fixing portion is press-fitted into the shank hole, and the shank portion and the blade portion are closely fitted to be integrated.
本考案により、切削工具の歩留まりが向上する。また、切削工具の被削性が効果的に強化される。 According to the present invention, the yield of cutting tools is improved. In addition, the machinability of the cutting tool is effectively enhanced.
図２は、本考案の好ましい実施例による切削工具の分解図、図３は、本考案の好ましい実施例による切削工具の断面図である。図２と図３に示されるように、切削工具は、刃部１０とシャンク部２０を含む。刃部１０は、切削刃部１１と、切削刃部１１の後端に設置される固定部１２と、を有し、シャンク部２０の前端は、第一深さＨを有する凹糟２１を設置する。固定部１２は、シャンク部２０の凹糟２１中に挿設され、且つ、凹糟２１に挿設される固定部１２の深さは第二深さｈで、第二深さｈと第一深さＨの比率は０．７５〜０．９５である。 FIG. 2 is an exploded view of a cutting tool according to a preferred embodiment of the present invention, and FIG. 3 is a cross-sectional view of the cutting tool according to a preferred embodiment of the present invention. As shown in FIGS. 2 and 3, the cutting tool includes a blade portion 10 and a shank portion 20. The blade portion 10 has a cutting blade portion 11 and a fixing portion 12 installed at the rear end of the cutting blade portion 11, and a front end of the shank portion 20 is provided with a concave rod 21 having a first depth H. To do. The fixing part 12 is inserted into the recess 21 of the shank part 20, and the depth of the fixing part 12 inserted into the recess 21 is the second depth h. The ratio of the depth H is 0.75 to 0.95.
刃部１０の材質はタングステンカーバイドで、且つ、刃部１０の切削刃部１１は、ドリルエッジ構造かフライス構造である。好ましい実施例中、刃部１０後端の固定部１２は円棒状で、且つ、固定部１２の直径は、切削刃部１１の直径より大きく、固定部１２の末端１３は、円弧形状か面取りに加工する。シャンク部２０の材質はステンレス材質で、且つ、シャンク部２０の凹糟２１は固定部１２の形状に対応し、凹糟２１の内径は、固定部１２の直径より０〜２０μｍ小さい。 The material of the blade part 10 is tungsten carbide, and the cutting blade part 11 of the blade part 10 has a drill edge structure or a milling structure. In a preferred embodiment, the fixed part 12 at the rear end of the blade part 10 is in the shape of a rod, and the diameter of the fixed part 12 is larger than the diameter of the cutting blade part 11, and the end 13 of the fixed part 12 is arcuate or chamfered. Process. The material of the shank part 20 is stainless steel, and the recess 21 of the shank part 20 corresponds to the shape of the fixing part 12, and the inner diameter of the recess 21 is 0 to 20 μm smaller than the diameter of the fixing part 12.
固定部１２を凹糟２１に挿入する時、固定部１２の末端１３の円弧形状か面取り設計を利用して、凹糟２１の中心に照準させるのを補助し、圧入裝置を利用して、直接、固定部１２を圧入して、凹糟２１の中に推入し、シャンク部２０と刃部１０を緊密に嵌合する。 When the fixing portion 12 is inserted into the recess 21, the arc shape or chamfering design of the end 13 of the fixing portion 12 is used to assist in aiming at the center of the recess 21, and directly using the press-fit device. The fixing portion 12 is press-fitted and inserted into the recess 21 to closely fit the shank portion 20 and the blade portion 10.
固定部１２が凹糟２１に挿入される時の力に耐えるため、シャンク部２０の前段は、前端面に向かって徐々に狭くなる錐状頸部２２を形成し、且つ、錐状頸部２２の外表面２３は円弧状である。錐状頸部２２の外表面２３の円弧状設計は、刃部１０が受ける軸向きの切削力を増加すると共に、刃部１０がシャンク部２０にはめ込まれる定位性を増加する。従来の切削工具構造と比較すると、本考案のシャンク部は、錐状頸部２２の外表面２３の円弧状設計により、従来の刃部の切削、研磨作業時、応力集中により崩壊しやすい欠点を改善し、切削工具全体の被削性を効果的に強化する。 In order to withstand the force when the fixing portion 12 is inserted into the recess 21, the front stage of the shank portion 20 forms a conical neck portion 22 that gradually narrows toward the front end surface, and the conical neck portion 22. The outer surface 23 is arcuate. The arcuate design of the outer surface 23 of the conical neck portion 22 increases the axial cutting force received by the blade portion 10, and increases the orientation at which the blade portion 10 is fitted into the shank portion 20. Compared with the conventional cutting tool structure, the shank part of the present invention has the disadvantage that it tends to collapse due to stress concentration during cutting and polishing operations of the conventional blade part due to the arc-shaped design of the outer surface 23 of the conical neck part 22. Improve and effectively enhance the machinability of the entire cutting tool.
本考案において、固定部１２が挿入される凹糟２１の第二深さｈと凹糟２１の第一深さＨの比率は、０．７５〜０．９５で、即ち、凹糟２１は、固定部１２に完全には充満されず、屑収容空間を残しており、固定部１２を凹糟２１に圧入時、凹糟２１の内壁と固定部１２の相互摩擦により生じる若干の金属屑を収容し、製造の歩留まりを向上させる。 In the present invention, the ratio of the second depth h of the recess 21 into which the fixing part 12 is inserted and the first depth H of the recess 21 is 0.75 to 0.95. The fixed portion 12 is not completely filled, leaving a waste storage space. When the fixed portion 12 is press-fitted into the recess 21, some metal waste generated by the friction between the inner wall of the recess 21 and the fixed portion 12 is stored. And improve the manufacturing yield.
総合すると、本考案の切削工具は、シャンク部のシャンク穴が刃部に完全には充満されず、屑収容空間を残している設計により、切削工具の歩留まりを向上する。また、シャンク部前段の円弧状錐状頸部を利用して、切削工具全体の被削性を効果的に強化する。 In summary, the cutting tool of the present invention improves the yield of the cutting tool by a design in which the shank hole of the shank portion is not completely filled in the blade portion, leaving a waste storage space. Moreover, the machinability of the whole cutting tool is effectively strengthened using the arc-shaped cone-shaped neck part in front of the shank part.
本考案では好ましい実施例を前述の通り開示したが、これらは決して本考案に限定するものではなく、当該技術を熟知する者なら誰でも、本考案の構想と領域を脱しない範囲内で各種の変動や修飾を加えることができ、従って本考案の保護範囲は、実用新案請求の範囲で指定した内容を基準とする。 In the present invention, preferred embodiments have been disclosed as described above, but these are not intended to limit the present invention in any way. Anyone who is familiar with the technology can use various methods within the scope and concept of the present invention. Variations and modifications can be added, so the protection scope of the present invention is based on the contents specified in the claims of the utility model.
Claims (11)
前端面にシャンク穴を設置し、且つ、前記シャンク穴が第一深さを有するシャンク部と、
切削刃部と、前記切削刃部の一端に延設される固定部と、を含み、前記固定部は前記凹糟中に挿設され、前記固定部が前記凹糟中に挿設される深さが第二深さで、前記第二深さと前記第一深さの比率が０．７５〜０．９５の間である刃部と、
を含むことを特徴とする切削工具。 A cutting tool,
A shank hole is installed in the front end surface, and the shank hole has a first depth;
A cutting blade portion, and a fixing portion extending to one end of the cutting blade portion, wherein the fixing portion is inserted into the recess, and the fixing portion is inserted into the recess. Is a second depth, a blade portion in which the ratio of the second depth and the first depth is between 0.75 and 0.95,
A cutting tool comprising:
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101210469U TWM442204U (en) | 2012-05-31 | 2012-05-31 | Processing cutter |
| TW101210469 | 2012-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3181347U true JP3181347U (en) | 2013-01-31 |
Family
ID=48028233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012007069U Expired - Lifetime JP3181347U (en) | 2012-05-31 | 2012-11-20 | Cutting tools |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3181347U (en) |
| KR (1) | KR20130007089U (en) |
| CN (1) | CN202861475U (en) |
| TW (1) | TWM442204U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952971B (en) * | 2014-03-28 | 2017-09-19 | 三星钻石工业股份有限公司 | Groove processing instrument and the scoring device for being provided with the groove processing instrument |
| JP6406006B2 (en) * | 2014-03-28 | 2018-10-17 | 三星ダイヤモンド工業株式会社 | Grooving tool and scribing device equipped with the groove machining tool |
| CN110446352B (en) * | 2019-08-08 | 2021-03-02 | 信泰电子（西安）有限公司 | PCB circuit board drilling needle and drilling process effect detection method |
-
2012
- 2012-05-31 TW TW101210469U patent/TWM442204U/en not_active IP Right Cessation
- 2012-11-07 CN CN2012205830560U patent/CN202861475U/en not_active Expired - Lifetime
- 2012-11-20 JP JP2012007069U patent/JP3181347U/en not_active Expired - Lifetime
-
2013
- 2013-03-07 KR KR2020130001710U patent/KR20130007089U/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| TWM442204U (en) | 2012-12-01 |
| CN202861475U (en) | 2013-04-10 |
| KR20130007089U (en) | 2013-12-10 |
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