JP6166127B2 - Rotating cutting method using rotating cutting tool and method of using rotating cutting tool - Google Patents
Rotating cutting method using rotating cutting tool and method of using rotating cutting tool Download PDFInfo
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- 238000005520 cutting process Methods 0.000 title claims description 91
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- 239000007769 metal material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
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Description
本発明は、チャック装置で保持される把持部に刃部を連設した回転切削工具を用いた回転切削工法及び回転切削工具の使用方法に関するものである。 The present invention relates to a rotary cutting method using a rotary cutting tool in which a blade part is connected to a gripping part held by a chuck device, and a method of using the rotary cutting tool.
従来より、穴あけ加工等においては、ドリルやエンドミルなどの回転切削工具が用いられている。 Conventionally, rotary cutting tools such as drills and end mills have been used in drilling and the like.
この回転切削工具は、１本の棒状の金属材料をチャック装置で保持される把持部（シャンク）に刃部（ドリル）を連設した形状に加工して製造されたものが使用されている（たとえば、特許文献１参照。）。 This rotary cutting tool is manufactured by processing a single bar-shaped metal material into a shape in which a blade part (drill) is connected to a grip part (shank) held by a chuck device ( For example, see Patent Document 1.)
従来の回転切削工具においては、使用により刃部が摩耗や破断等した場合には、廃棄され、新しい回転切削工具と交換して使用されていた。 In the conventional rotary cutting tool, when the blade portion is worn or broken by use, it is discarded and used in exchange for a new rotary cutting tool.
そのため、従来においては、回転切削工具に要する費用が増大するといった問題があった。特に、回転切削工具が超硬ドリルなどの場合においては、レアメタルを含有する高価な金属材料が用いられていたために、より一層大きな問題となっていた。 Therefore, conventionally, there has been a problem that the cost required for the rotary cutting tool increases. In particular, when the rotary cutting tool is a cemented carbide drill or the like, an expensive metal material containing a rare metal has been used, which is an even greater problem.
そこで、請求項１に係る本発明では、チャック装置で保持される把持部に刃部を連設した回転切削工具を用いて切削加工を行う回転切削工法において、第１の把持部の両端に同一の長さの第１の刃部と第２の刃部とを連設するとともに第１の把持部の長さを第１の刃部や第２の刃部の長さの２倍よりも長くした第１の回転切削工具を用い、第１の回転切削工具の第１の刃部で第1の切削加工を行い、第１の刃部が疲労した後に、第１の回転切削工具の第２の刃部で第２の切削加工を行い、第２の刃部が疲労した後に、第１の刃部及び第２の刃部を除去するとともに第１の把持部を加工して、第２の把持部の一端に第１の刃部や第２の刃部と同一の長さの第３の刃部を連設した第２の回転切削工具を製作し、第２の回転切削工具の第３の刃部で第３の切削加工を行うことにした。
Therefore, in the present invention according to claim 1, in the rotary cutting method in which cutting is performed using a rotary cutting tool in which a blade portion is connected to a grip portion held by a chuck device, both ends of the first grip portion are the same. The first blade part and the second blade part of the length are continuously provided, and the length of the first gripping part is longer than twice the length of the first blade part or the second blade part. The first rotary cutting tool is used to perform the first cutting with the first blade portion of the first rotary cutting tool, and after the first blade portion is fatigued, the second of the first rotary cutting tool is used. The second cutting process is performed with the blade part, and after the second blade part is fatigued, the first blade part and the second blade part are removed and the first gripping part is processed to obtain the second A second rotary cutting tool in which a third blade portion having the same length as that of the first blade portion or the second blade portion is connected to one end of the gripping portion is manufactured, and the third rotary cutting tool of the second rotary cutting tool is manufactured . No. at the blade part It was decided to perform 3 cutting.
また、請求項２に係る本発明では、チャック装置で保持される把持部に刃部を連設した回転切削工具の使用方法において、第１の把持部の両端に同一の長さの第１の刃部と第２の刃部とを連設するとともに第１の把持部の長さを第１の刃部や第２の刃部の長さの２倍よりも長くした第１の回転切削工具を用い、第１の回転切削工具の第１の刃部で切削加工を行い、第１の刃部が疲労した後に、第１の回転切削工具の第２の刃部で切削加工を行い、第２の刃部が疲労した後に、第１の刃部及び第２の刃部を除去するとともに第１の把持部を加工して、第２の把持部の一端に第１の刃部や第２の刃部と同一の長さの第３の刃部を連設した第２の回転切削工具を製作し、第２の回転切削工具の第３の刃部で切削加工を行うことにした。 According to a second aspect of the present invention, in a method of using a rotary cutting tool in which a blade portion is connected to a grip portion held by a chuck device, the first length of the same length is provided at both ends of the first grip portion. A first rotary cutting tool in which a blade portion and a second blade portion are provided continuously and the length of the first gripping portion is longer than twice the length of the first blade portion or the second blade portion. The first blade portion of the first rotary cutting tool is used for cutting, and after the first blade portion is fatigued, the second blade portion of the first rotary cutting tool is used for cutting. After the two blade portions are fatigued, the first blade portion and the second blade portion are removed and the first grip portion is processed, and the first blade portion and the second blade are formed at one end of the second grip portion . A second rotary cutting tool in which a third blade portion having the same length as that of the second rotary cutting tool was continuously manufactured, and the third blade portion of the second rotary cutting tool was cut.
そして、本発明では、以下に記載する効果を奏する。 And in this invention, there exists an effect described below.
すなわち、本発明では、１本の回転切削工具を長期間使用することができるので、回転切削工具に要する費用を低減させることができる。 That is, in this invention, since one rotary cutting tool can be used for a long period of time, the expense which a rotary cutting tool requires can be reduced.
以下に、本発明に係る回転切削工具を用いた回転切削工法及び回転切削工具の使用方法について図面を参照しながら具体的に説明する。 Hereinafter, a rotary cutting method using the rotary cutting tool according to the present invention and a method of using the rotary cutting tool will be specifically described with reference to the drawings.
本発明では、図１に示す第１の回転切削工具１と第２の回転切削工具２とを用いて切削加工を行う。
In the present invention, cutting is performed using the first rotary cutting tool 1 and the second
第１の回転切削工具１は、円筒状の金属材料から製作されており、チャック装置で保持される円筒状の第１の把持部３の左右両端に第１の刃部４と第２の刃部５をそれぞれ連設している。ここで、第１の刃部４や第２の刃部５としては、各種のドリルや先行刃付きバニッシングドリルやエンドミルなどとすることができる。また、第１の刃部４と第２の刃部５は、同一の長さとするとともに、外径を第１の把持部３の外径よりも細くしている。さらに、第１の把持部３は、長さを第１の刃部４又は第２の刃部５の長さの２倍よりも長くしている。
The first rotary cutting tool 1 is made of a cylindrical metal material, and has a first blade portion 4 and a second blade at the left and right ends of a cylindrical
第２の回転切削工具２は、第１の回転切削工具１の第１の把持部３を加工して製作されるものであり、チャック装置で保持される円筒状の第２の把持部６の一端に第３の刃部７を連設している。ここで、第３の刃部７としては、各種のドリルや先行刃付きバニッシングドリルやエンドミルなどとすることができる。また、第３の刃部７は、長さを第１の刃部４や第２の刃部５と同一の長さとするとともに、外径を第２の把持部６の外径よりも細くしている。さらに、第２の把持部６は、外径を第１の把持部３の外径と同一又は細くしている。
The second
そして、図２に模式的に示すように、まずは第１の回転切削工具１を用い、第１の回転切削工具１の第１の刃部４を使用して第１の切削加工を行う（図２（ａ））。 Then, as schematically shown in FIG. 2, first, the first rotary cutting tool 1 is used, and the first cutting process is performed using the first blade portion 4 of the first rotary cutting tool 1 (FIG. 2). 2 (a)).
第１の切削加工を継続して行っていると、第１の刃部４が摩耗や破断などによって疲労（消耗）する。 If the first cutting process is continuously performed, the first blade portion 4 is fatigued (consumed) due to wear or breakage.
そこで、第１の回転切削工具１の第１の刃部４が疲労した後は、第１の回転切削工具１の第２の刃部５を使用して第２の切削加工を行う（図２（ｂ））。 Therefore, after the first blade 4 of the first rotary cutting tool 1 is fatigued, the second cutting is performed using the second blade 5 of the first rotary cutting tool 1 (FIG. 2). (B)).
この第２の切削加工も継続して行っていると、第２の刃部５が摩耗や破断などによって疲労（消耗）する。 If the second cutting process is continued, the second blade portion 5 is fatigued (consumed) due to wear, breakage, or the like.
その時には、第１の回転切削工具１から第１の刃部４及び第２の刃部５を除去（切断）するとともに、第１の把持部３を加工して第２の回転切削工具２を製作する。
At that time, the first blade portion 4 and the second blade portion 5 are removed (cut) from the first rotary cutting tool 1, and the
そして、第２の回転切削工具２を用い、第２の回転切削工具２の第３の刃部７を使用して第３の切削加工を行う（図２（ｃ））。
And the 3rd cutting is performed using the 3rd blade part 7 of the 2nd
これにより、本発明では、１本の回転切削工具を長期間使用することができるので、回転切削工具に要する費用を低減させることができる。たとえば、第１の把持部３は、長さを同一長さの第１の刃部４及び第２の刃部５の長さの２倍とした場合には、通常の回転切削工具（第２の回転切削工具２）の２倍の金属材料を用いて３本分の回転切削工具と同等の期間使用することができ、回転切削工具に要する費用を２／３に低減することができる。
Thereby, in this invention, since one rotary cutting tool can be used for a long period of time, the expense which a rotary cutting tool requires can be reduced. For example, when the length of the
１ 第１の回転切削工具
２ 第２の回転切削工具
３ 第１の把持部
４ 第１の刃部
５ 第２の刃部
６ 第２の把持部
７ 第３の刃部
DESCRIPTION OF SYMBOLS 1 1st
Claims (2)
第１の把持部の両端に同一の長さの第１の刃部と第２の刃部とを連設するとともに第１の把持部の長さを第１の刃部や第２の刃部の長さの２倍よりも長くした第１の回転切削工具を用い、
第１の回転切削工具の第１の刃部で第1の切削加工を行い、
第１の刃部が疲労した後に、第１の回転切削工具の第２の刃部で第２の切削加工を行い、
第２の刃部が疲労した後に、第１の刃部及び第２の刃部を除去するとともに第１の把持部を加工して、第２の把持部の一端に第１の刃部や第２の刃部と同一の長さの第３の刃部を連設した第２の回転切削工具を製作し、
第２の回転切削工具の第３の刃部で第３の切削加工を行うことを特徴とする回転切削工法。 In the rotary cutting method of performing cutting using a rotary cutting tool in which a blade portion is connected to a gripping portion held by a chuck device,
A first blade portion and a second blade portion having the same length are connected to both ends of the first grip portion, and the length of the first grip portion is set to the first blade portion or the second blade portion. Using a first rotary cutting tool that is longer than twice the length of
Perform the first cutting with the first blade of the first rotary cutting tool,
After the first blade portion is fatigued, a second cutting process is performed with the second blade portion of the first rotary cutting tool,
After the second blade portion is fatigued, the first blade portion and the second blade portion are removed and the first grip portion is processed , and the first blade portion and the second blade portion are connected to one end of the second grip portion . the third blade portions of the second blade portion of the same length to prepare a second rotary cutting tool continuously provided to,
A rotary cutting method characterized by performing a third cutting process with a third blade portion of a second rotary cutting tool.
第１の把持部の両端に同一の長さの第１の刃部と第２の刃部とを連設するとともに第１の把持部の長さを第１の刃部や第２の刃部の長さの２倍よりも長くした第１の回転切削工具を用い、
第１の回転切削工具の第１の刃部で切削加工を行い、
第１の刃部が疲労した後に、第１の回転切削工具の第２の刃部で切削加工を行い、
第２の刃部が疲労した後に、第１の刃部及び第２の刃部を除去するとともに第１の把持部を加工して、第２の把持部の一端に第１の刃部や第２の刃部と同一の長さの第３の刃部を連設した第２の回転切削工具を製作し、
第２の回転切削工具の第３の刃部で切削加工を行うことを特徴とする回転切削工具の使用方法。
In a method of using a rotary cutting tool in which a blade portion is connected to a grip portion held by a chuck device,
A first blade portion and a second blade portion having the same length are connected to both ends of the first grip portion, and the length of the first grip portion is set to the first blade portion or the second blade portion. Using a first rotary cutting tool that is longer than twice the length of
Cutting with the first blade of the first rotary cutting tool;
After the first blade portion is fatigued, cutting is performed with the second blade portion of the first rotary cutting tool,
After the second blade portion is fatigued, the first blade portion and the second blade portion are removed and the first grip portion is processed , and the first blade portion and the second blade portion are connected to one end of the second grip portion . A second rotary cutting tool in which a third blade portion having the same length as the two blade portions is continuously provided;
A method for using a rotary cutting tool, wherein the third cutting portion of the second rotary cutting tool is used for cutting.
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