JP3114597U

JP3114597U - Drilling tool

Info

Publication number: JP3114597U
Application number: JP2005005371U
Authority: JP
Inventors: 勇仲川
Original assignee: 新潟精機株式会社
Priority date: 2005-07-08
Filing date: 2005-07-08
Publication date: 2005-10-27
Anticipated expiration: 2015-07-08

Abstract

【課題】回転工具のチャック部に穴開け工具のシャンク体を装着し、シャンク体を低速回転させながら切刃体を押圧当接し、切刃体の回転によりガラス類や陶器類等の加工物に穴が開けられることになり、この際、シャンク体の先端部に十字状溝部を形成し、この十字状溝部に十字状刃板からなる切刃体が挿入固着しているから、シャンク体と十字状刃板との結合強度を高めることができ、穴加工能率を向上することができる。
【解決手段】電動工具や手回し工具等の回転工具Ｋのチャック部Ｔに装着可能なシャンク体１の先端部にガラス類や陶器類等の加工物に穴を開けるための切刃体２を設けてなり、シャンク体の先端部に十字状溝部３を形成し、十字状溝部に十字状刃板４からなる切刃体を挿入固着してなる。
【選択図】図１
[PROBLEMS] To mount a shank body of a drilling tool on a chuck portion of a rotary tool, press and abut the cutting blade body while rotating the shank body at a low speed, and rotate the cutting blade body to a workpiece such as glass or ceramics. At this time, a cross-shaped groove is formed at the tip of the shank body, and a cutting blade body made of a cross-shaped blade plate is inserted and fixed in the cross-shaped groove section. The bonding strength with the blade plate can be increased, and the hole drilling efficiency can be improved.
A cutting blade body 2 is provided for making a hole in a workpiece such as glass or ceramics at the tip of a shank body 1 that can be mounted on a chuck portion T of a rotary tool K such as an electric tool or a hand turning tool. Thus, a cross-shaped groove 3 is formed at the tip of the shank body, and a cutting blade body made of a cross-shaped blade plate 4 is inserted and fixed in the cross-shaped groove.
[Selection] Figure 1

Description

本考案は電動工具や手回し工具等の回転工具のチャック部に装着され、ガラス類や陶器類等の加工物に穴を開ける際に用いられる穴開け工具に関するものである。 The present invention relates to a drilling tool which is attached to a chuck portion of a rotating tool such as an electric tool or a hand-turning tool and is used when a hole is drilled in a workpiece such as glass or ceramics.

従来この種の穴開け工具として、ドリルや棒状砥石からなる工具が知られている。
特開２００５−１５３１３１ Conventionally, a tool made of a drill or a rod-shaped grindstone is known as this type of drilling tool.
JP 2005-153131 A

しかしながら上記従来構造の場合、ガラス類や陶器類等の硬質材料からなる加工物にあっては切削能力や切削効率の面で制約を受けているという不都合を有している。 However, in the case of the above-described conventional structure, there is a disadvantage that a workpiece made of a hard material such as glass or ceramics is restricted in terms of cutting ability and cutting efficiency.

本考案はこれらの不都合を解決することを目的とするもので、本考案のうちで、請求項１記載の考案は、電動工具や手回し工具等の回転工具のチャック部に装着可能なシャンク体の先端部にガラス類や陶器類等の加工物に穴を開けるための切刃体を設けてなり、上記シャンク体の先端部に十字状溝部を形成し、該十字状溝部に十字状刃板からなる上記切刃体を挿入固着してなることを特徴とする穴開け工具にある。 The present invention aims to solve these disadvantages. Among the present inventions, the invention described in claim 1 is a shank body that can be mounted on a chuck portion of a rotary tool such as an electric tool or a hand-turning tool. A cutting blade body for drilling a hole in a workpiece such as glass or ceramics is provided at the tip portion, a cross-shaped groove portion is formed at the tip portion of the shank body, and the cross-shaped groove portion is formed from a cross-shaped blade plate. The above-mentioned cutting blade body is inserted and fixed.

又、請求項２記載の考案は、上記十字状刃板からなる切刃体の先端部にシンニング部が形成されていることを特徴とするものであり、又、請求項３記載の考案は、上記十字状刃板は四個の刃板からなることを特徴とするものであり、又、請求項４記載の考案は、上記十字状刃板は超硬合金からなることを特徴とするものである。 The invention described in claim 2 is characterized in that a thinning part is formed at the tip of the cutting blade body made of the cross-shaped blade plate, and the invention described in claim 3 The cruciform blade plate is composed of four blade plates, and the device according to claim 4 is characterized in that the cruciform blade plate is composed of cemented carbide. is there.

本考案は上述の如く、請求項１記載の考案にあっては、回転工具のチャック部に上記穴開け工具のシャンク体を装着し、シャンク体を低速回転させながら切刃体を押圧当接し、切刃体の回転によりガラス類や陶器類等の加工物に穴が開けられることになり、この際、上記シャンク体の先端部に十字状溝部を形成し、この十字状溝部に十字状刃板からなる切刃体が挿入固着しているから、シャンク体と十字状刃板との結合強度を高めることができ、かつ、切刃体は十字状刃板からなるので、穴加工に伴う断続的な衝撃を緩和することができ、それだけ円滑な切削回転が可能となり、穴加工能率を向上することができる。 As described above, according to the present invention, the shank body of the drilling tool is attached to the chuck portion of the rotary tool, and the cutting blade body is pressed and abutted while rotating the shank body at a low speed. By rotating the cutting blade, a hole is made in a workpiece such as glass or ceramics. At this time, a cross-shaped groove is formed at the tip of the shank body, and a cross-shaped blade plate is formed in the cross-shaped groove. Since the cutting blade body made of is inserted and fixed, the bonding strength between the shank body and the cruciform blade plate can be increased, and the cutting blade body is made of a cruciform blade plate, so intermittently with drilling Impact can be alleviated, smooth cutting rotation can be achieved, and hole drilling efficiency can be improved.

又、請求項２記載の考案にあっては、上記十字状刃板からなる切刃体の先端部にシンニング部が形成されているから、加工物の穴開位置に対する切刃体の先端の芯合わせが容易となり、穴開け位置精度を高めることができ、又、請求項３記載の考案にあっては、上記十字状刃板は四個の刃板からなるので、十字状刃板の製作をロー付け加工等により容易に行うことができ、又、請求項４記載の考案にあっては、上記十字状刃板は超硬合金からなるので、ガラス類や陶器類等の硬質材料からなる加工物に容易に穴加工を行うことができる。 Further, in the invention according to claim 2, since the thinning portion is formed at the tip end portion of the cutting blade body made of the cross-shaped blade plate, the core of the tip end of the cutting blade body with respect to the hole opening position of the workpiece. Alignment can be facilitated, and the accuracy of the drilling position can be improved. In the device according to claim 3, the cross-shaped blade plate is composed of four blade plates. It can be easily performed by brazing or the like, and in the device according to claim 4, the cross-shaped blade plate is made of cemented carbide, so that it is made of a hard material such as glass or ceramics. Holes can be easily drilled into objects.

図１乃至図６は本考案の実施の形態例を示し、Ｍは穴開け工具であって、電動工具や手回し工具等の回転工具Ｋのチャック部Ｔに装着可能なシャンク体１の先端部にガラス類や陶器類等の加工物Ｗに穴Ｆを開けるための切刃体２を設けてなる。 1 to 6 show an embodiment of the present invention, where M is a drilling tool, and is attached to the tip of a shank body 1 that can be mounted on a chuck portion T of a rotary tool K such as an electric tool or a hand turning tool. A cutting blade body 2 for forming a hole F in a workpiece W such as glass or ceramics is provided.

この場合、上記シャンク体１の先端部に十字状溝部３を形成し、この十字状溝部３に十字状刃板４からなる上記切刃体２を挿入固着している。 In this case, a cross-shaped groove portion 3 is formed at the tip of the shank body 1, and the cutting blade body 2 composed of a cross-shaped blade plate 4 is inserted and fixed in the cross-shaped groove portion 3.

この場合、図３、図４の如く、上記十字状刃板４は超硬合金からなる四個の刃板６・６・６・６からなり、各刃板６・６・６・６の回転方向前縁にすくい角θ＝約２０度の切刃６ａ・６ａ・６ａ・６ａが形成され、各刃板６・６・６・６の対向縁部６ｂ・６ｂ・６ｂ・６ｂを略直角状角部に形成し、各刃板６・６・６・６の対向縁部６ｂ・６ｂ・６ｂ・６ｂを突き合わせ状にして十字状溝部３の挿入し、ロー付け加工によりシャンク体１の固着し、シャンク体１の外周面１ａを研削仕上加工すると共に刃体２の先端部にシンニング部５を研削加工するようにしている。 In this case, as shown in FIGS. 3 and 4, the cross-shaped blade plate 4 is composed of four blade plates 6, 6, 6, 6 made of cemented carbide, and each blade plate 6, 6, 6, 6 is rotated. Cutting edges 6a, 6a, 6a, 6a having a rake angle θ of about 20 degrees are formed at the front edge in the direction, and the opposing edges 6b, 6b, 6b, 6b of the respective blade plates 6, 6, 6, 6 are substantially perpendicular. Formed at the corners, the opposing edges 6b, 6b, 6b, 6b of the blade plates 6, 6, 6, 6 are butted together and inserted into the cross-shaped groove 3, and the shank body 1 is fixed by brazing. The outer peripheral surface 1 a of the shank body 1 is ground and processed, and the thinning portion 5 is ground at the tip of the blade body 2.

この実施の形態例は上記構成であるから、図１の如く、例えば、電動工具である回転工具Ｋのチャック部Ｔに上記穴開け工具Ｋのシャンク体１を装着し、シャンク体１を低速回転させながら切刃体２を押圧当接し、切刃体２の回転によりガラス類や陶器類等の加工物Ｗに穴が開けられることになり、この際、上記シャンク体１の先端部に十字状溝部３を形成し、この十字状溝部３に十字状刃板４からなる切刃体２が挿入固着しているから、シャンク体１と十字状刃板４との結合強度を高めることができ、かつ、切刃体２は十字状刃板４からなるので、穴加工に伴う断続的な衝撃を緩和することができ、円滑な切削回転が可能となり、穴加工能率を向上することができる。 Since this embodiment is configured as described above, as shown in FIG. 1, for example, the shank body 1 of the drilling tool K is mounted on the chuck portion T of the rotary tool K, which is an electric tool, and the shank body 1 is rotated at a low speed. Then, the cutting blade body 2 is pressed and brought into contact with each other, and a hole is formed in the workpiece W such as glass or ceramics by the rotation of the cutting blade body 2. At this time, the tip of the shank body 1 has a cross shape. Since the groove portion 3 is formed and the cutting blade body 2 composed of the cross-shaped blade plate 4 is inserted and fixed to the cross-shaped groove portion 3, the bonding strength between the shank body 1 and the cross-shaped blade plate 4 can be increased. And since the cutting blade body 2 consists of the cross-shaped blade board 4, the intermittent impact accompanying a hole processing can be relieve | moderated, a smooth cutting rotation is attained, and a hole processing efficiency can be improved.

又、この場合、上記十字状刃板４からなる切刃体２の先端部にシンニング部５が形成されているから、加工物Ｗの穴開位置に対する切刃体２の先端の芯合わせが容易となり、穴開け位置精度を高めることができ、又、この場合、上記十字状刃板４は四個の刃板からなるので、十字状刃板４の製作をロー付け加工等により容易に行うことができ、又、この場合、上記十字状刃板４は超硬合金からなるので、ガラス類や陶器類等の硬質材料からなる加工物Ｗに容易に穴加工を行うことができる。 Further, in this case, since the thinning portion 5 is formed at the distal end portion of the cutting blade body 2 made of the cross-shaped blade plate 4, the centering of the distal end of the cutting blade body 2 with respect to the hole opening position of the workpiece W is easy. In this case, since the cross-shaped blade plate 4 is composed of four blade plates, the cross-shaped blade plate 4 can be easily manufactured by brazing or the like. In this case, since the cross-shaped blade plate 4 is made of a cemented carbide, it is possible to easily drill a hole in a workpiece W made of a hard material such as glass or ceramics.

尚、本考案は上記実施の形態例に限られるものではなく、シャンク体１、切刃体２、十字状溝部３、十字状刃板４、刃板６等の構造等は適宜変更して設計されるものである。 The present invention is not limited to the above-described embodiment, and the structure of the shank body 1, the cutting blade body 2, the cross-shaped groove portion 3, the cross-shaped blade plate 4, the blade plate 6 and the like are appropriately changed and designed. It is what is done.

以上、所期の目的を充分達成することができる。 As described above, the intended purpose can be sufficiently achieved.

本考案の実施の形態例の全体正面図である。1 is an overall front view of an embodiment of the present invention. 本考案の実施の形態例の先端面図である。It is a front end view of an embodiment of the present invention. 本考案の実施の形態例の分離斜視図である。It is a separation perspective view of an embodiment of the present invention. 本考案の実施の形態例の部分断面図である。It is a fragmentary sectional view of the example of an embodiment of the invention. 本考案の実施の形態例の部分斜視図である。It is a fragmentary perspective view of the example of an embodiment of the invention. 本考案の実施の形態例の使用状態図である。It is a use condition figure of an example of an embodiment of the invention.

Explanation of symbols

Ｍ穴開け工具
Ｔチャック部
Ｗ加工物
１シャンク体
２切刃体
３十字状溝部
４十字状刃板
５シンニング部
６刃板
M Drilling tool T Chuck part W Work piece 1 Shank body 2 Cutting blade body 3 Cross-shaped groove part 4 Cross-shaped blade board 5 Thinning part 6 Blade board

Claims

The tip of the shank body is provided with a cutting blade body for drilling holes in workpieces such as glass and ceramics at the tip of the shank body that can be mounted on the chuck part of a rotary tool such as an electric tool or hand tool. A drilling tool characterized by forming a cross-shaped groove portion in a portion, and inserting and fixing the cutting blade body made of a cross-shaped blade plate into the cross-shaped groove portion.

2. The drilling tool according to claim 1, wherein a thinning portion is formed at a tip end portion of the cutting blade body made of the cross-shaped blade plate.

The drilling tool according to claim 1 or 2, wherein the cross-shaped blade plate includes four blade plates.

The said cross-shaped blade board consists of a cemented carbide alloy, The drilling tool of any one of Claims 1-3 characterized by the above-mentioned.