JPS6263024A - Numerically controlled machining method for plastic material - Google Patents
Numerically controlled machining method for plastic materialInfo
- Publication number
- JPS6263024A JPS6263024A JP20132285A JP20132285A JPS6263024A JP S6263024 A JPS6263024 A JP S6263024A JP 20132285 A JP20132285 A JP 20132285A JP 20132285 A JP20132285 A JP 20132285A JP S6263024 A JPS6263024 A JP S6263024A
- Authority
- JP
- Japan
- Prior art keywords
- plastic material
- machining
- forming mold
- cutting
- centering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
この発明は、自動車の開発段階におけるスポイラ−、マ
ット・ガード、ドア・ミラー等のデザイン・モデルを製
作する場合などにおいて、NC機械を用いて樹脂材を立
体的に切削加工するNC加工法に関するものである。[Detailed Description of the Invention] (Industrial Application Field) This invention uses an NC machine to produce design models for spoilers, mat guards, door mirrors, etc. during the development stage of automobiles. The present invention relates to an NC processing method for three-dimensionally cutting a resin material.
(従来の技術)
従来、樹脂素材をNG切削加工する場合、固定治具に加
工物を固定し、位置決めのため芯出しを行ない、まず上
面加工を行なった後、裏面を上にして再度治具に固定し
て芯出しを行っている。(Conventional technology) Conventionally, when performing NG cutting on a resin material, the workpiece is fixed on a fixing jig, centered for positioning, first the top surface is machined, and then the back side is turned up and placed on the jig again. Centering is performed by fixing it to
例えば第8図は、従来のNC加工で行っているつかみ代
固定による加工法である。まず定盤11に固定ブロック
12a、12’b、12cをそれぞれ固定ボルト(図示
せず)で固定する。この上に松葉〈固定治具)13a、
13b、13cとボルト14a、14b、14cr、立
体加工物15のつかみ代16a、16b、16cをそれ
ぞれ固着する。次にNC機械10により基準線17a、
’17b、17cを定めて芯出しを行い、先に上面部を
NG切削し、次に立体加工物15を裏返して基準線(図
示せず)により再度芯出しした後、NG切削を行ってい
る。For example, FIG. 8 shows a machining method using a fixed gripping allowance, which is used in conventional NC machining. First, the fixing blocks 12a, 12'b, and 12c are each fixed to the surface plate 11 with fixing bolts (not shown). On top of this, pine needles (fixing jig) 13a,
13b, 13c, bolts 14a, 14b, 14cr, and gripping margins 16a, 16b, 16c of the three-dimensional workpiece 15 are fixed, respectively. Next, the reference line 17a is set by the NC machine 10.
' 17b and 17c are determined and centering is performed, the upper surface part is first subjected to NG cutting, then the three-dimensional workpiece 15 is turned over, and after centering again according to the reference line (not shown), NG cutting is performed. .
第9図は、従来のNC加工で行っている位置決めビン挿
入による芯出しの例である。定盤21に固定された固定
ブロック22a、22b、22cの上面に、基準点とな
る位置決めビン23a、23bをねじ込みまたは打ち込
みにより固定する。FIG. 9 is an example of centering performed by inserting a positioning bin in conventional NC machining. Positioning pins 23a, 23b, which serve as reference points, are fixed to the upper surfaces of fixed blocks 22a, 22b, 22c fixed to the surface plate 21 by screwing or driving.
一方立体加工物24に対して図面から転写した位置にビ
ン孔25a、25bをあけ、ビン23a。On the other hand, bottle holes 25a and 25b are drilled in the three-dimensional workpiece 24 at the positions transferred from the drawing, and a bottle 23a is formed.
23bを強固に挿入して芯出しした後、固定する。23b is firmly inserted and centered, and then fixed.
〈発明が解決しようとする問題点)
しかしながら第1図の加工法は2回芯出しを行うため、
芯出し位置がその都度微妙にずれて仕上げM度が狂う。(Problems to be solved by the invention) However, since the processing method shown in Fig. 1 performs centering twice,
The centering position shifts slightly each time, causing the finishing M degree to go out of order.
また裏面加工のため反転して冶具に固着する場合、あら
かじめつかみ代を両側2箇所ないし形状によっては数箇
所設・けており、固定が難しい。Furthermore, when inverting and fixing to a jig for processing the back surface, gripping allowances are provided in advance at two locations on both sides, or at several locations depending on the shape, making it difficult to fix.
このつかみ代の部分は、最後に手工具による除去および
仕上げを必要とし、非能率である。This grip portion ultimately requires removal and finishing with hand tools, which is inefficient.
また第2図の加工法は、位置決めビン23a。The processing method shown in FIG. 2 is a positioning bin 23a.
231)の個数が少ないと、切削加工時にNG機械10
の刃具の切削圧力により「ぶれ」が生じ、仕上げ精度不
良となる。このためビン数を増加すると、位置決めが合
致しにくい。さらに立体加工物24のビン孔25a、2
5bの孔埋めや再仕上げなどにより寸法精度、仕上げ精
度が低下する。231) If the number of pieces is small, NG machine 10 may occur during cutting.
The cutting pressure of the cutting tool causes ``shake'', resulting in poor finishing accuracy. For this reason, when the number of bins is increased, it becomes difficult to match the positioning. Further, the bottle holes 25a, 2 of the three-dimensional workpiece 24
Dimensional accuracy and finishing accuracy decrease due to hole filling and refinishing of 5b.
上記従来の加工法は、いずれも面仕上げ精度が1〜4s
程度となり、あまりよくない。All of the above conventional processing methods have a surface finishing accuracy of 1 to 4 seconds.
It's not very good.
以上のように従来の方法は、NC加工による効率化、高
精度仕上げなどの効果が充分に発揮されていないという
問題点があった。As described above, the conventional method has a problem in that the effects of NC machining such as efficiency improvement and high precision finishing are not fully exhibited.
この発明は、1回の芯出しによって精度の高い一体加工
ができる樹脂材のNC加工法の提供を目的とする。The object of the present invention is to provide an NC processing method for resin materials that allows highly accurate integral processing with one centering.
(問題点を解決するための手段)
−に2目的を達成するため、この発明は、あらかじめ定
盤上に固定した成形型に立体加工物の半面形状をNG機
械により切削加工して手仕上げを行なう工程と、次いで
削り代を含む立体加工物全体に相当する樹脂を前記成形
型に盛り付ける工程と、前記樹脂の硬化模残り半面を前
記樹脂上にNCeI械により切削加工して手仕上げを行
う工程と、完成した立体加工物を前記成形型から抜き出
す工程とからなることを特徴とする樹脂材のNC加工法
である。(Means for Solving the Problems) - In order to achieve the following two objectives, this invention involves cutting the half-face shape of a three-dimensional workpiece into a mold fixed on a surface plate in advance using an NG machine and finishing it by hand. Next, a step of filling the mold with resin equivalent to the entire three-dimensional workpiece including cutting allowance, and a step of cutting the remaining half of the hardened resin onto the resin using an NCeI machine and finishing by hand. This is an NC processing method for resin materials, which is characterized by comprising the steps of: and extracting the completed three-dimensional processed product from the mold.
(実施例)
以下実施例の手順を示す図面に基づいて、この発明を説
明する。まず第2図において、定盤31に固定ブロック
32a、32b、32Gをそれぞれ固定ボルト(図示せ
ず〉で強固に固定する。その上面に松葉33a、33b
とボルト34a、34bにより、硬質ウレタン材からな
る成形型35の両端部35a、35bを固着させ、基準
線36により芯出しを行う。(Example) The present invention will be described below based on drawings showing the procedure of an example. First, in FIG. 2, the fixing blocks 32a, 32b, 32G are firmly fixed to the surface plate 31 with fixing bolts (not shown).
Both ends 35a and 35b of a mold 35 made of a hard urethane material are fixed using bolts 34a and 34b, and centering is performed using a reference line 36.
次に第3図に示すように、立体加工物37の半面または
芯出しおよび固定のために必要な形状38に合わせて成
形型35を凹状にNO切削する。Next, as shown in FIG. 3, the mold 35 is cut into a concave shape to match the half surface of the three-dimensional workpiece 37 or the shape 38 necessary for centering and fixing.
次に第4図に示すように、凹部38について、サンド・
ベーパー39やカンナ、ノミ等により仕上げ面38aに
合わせ、突出したカスブ38bを削り取り、精度よく仕
上げる。Next, as shown in FIG.
The protruding stub 38b is scraped off to match the finished surface 38a using a vapor 39, a plane, a chisel, etc., and finished with high precision.
次に第5図に示すように、あらかじめ適当な硬度に練っ
た樹脂材40を凹部38に圧入し、立体加工物37の削
り代を含めた大きさの形状に盛り付ける。Next, as shown in FIG. 5, a resin material 40 kneaded in advance to an appropriate hardness is press-fitted into the recess 38 and arranged in a shape having a size including the machining allowance for the three-dimensional workpiece 37.
次に第1図に示すように、盛り付けた樹脂材40が硬化
した時点で、成形型35の凹部38と密着した面取外の
樹脂材40の部分をNG切削する。Next, as shown in FIG. 1, when the loaded resin material 40 has hardened, the portion of the resin material 40 that is not chamfered and is in close contact with the recess 38 of the mold 35 is cut in an NG manner.
次に第6図に示すように、NC切削後の樹脂材40の切
削面40aの突出したカスブ40bを第4図と同様の要
領で面仕上げする。Next, as shown in FIG. 6, the protruding stub 40b of the cut surface 40a of the resin material 40 after NC cutting is surface-finished in the same manner as shown in FIG.
最後に第7図に示すように、成形された樹脂材40を成
形型35から抜き取・ると、立体加工物37が完成する
。Finally, as shown in FIG. 7, when the molded resin material 40 is extracted from the mold 35, a three-dimensional workpiece 37 is completed.
(発明の効果)
この発明は以上説明したように、1回の芯出しによって
一体加工ができる樹脂材のNC加工法であるから、以下
のような効果がある。(Effects of the Invention) As described above, the present invention is an NC processing method for a resin material that can be integrally processed by one-time centering, and therefore has the following effects.
すなわち立体加工物の完成仕上げ精度が従来の1.0〜
4.0mI++から0,2〜0.4調となり、5〜10
倍に向上する。ざらに従来は加工物の厚みが25履以上
でなければならなかったが、この発明の加工法によると
7間程度の薄物の加工も可能となる。In other words, the finishing accuracy of three-dimensional workpieces is 1.0~
4.0mI++ becomes 0.2-0.4 tone, 5-10
Improve twice as much. Conventionally, the thickness of the workpiece had to be 25 mm or more, but according to the processing method of the present invention, it is possible to process thin objects of about 7 mm.
また従来芯出しが2回必要であったのが、1回で済み、
かつ、つかみ代や位置決め孔の除去作業が不要となり、
大幅な作業の効率化が可能となる。In addition, centering, which previously required two times, now only needs to be done once.
In addition, there is no need to remove gripping allowances or positioning holes.
This makes it possible to significantly improve work efficiency.
従来の加工法は作業が微妙なためベテランを必要とした
が、この発明による加工法はベテランを必要としない。Conventional machining methods required experienced workers due to the delicate nature of the work, but the processing method of this invention does not require experienced workers.
したがってこの発明による加工法は、連続ライン加工工
程作業にも応用可能である。Therefore, the processing method according to the invention can also be applied to continuous line processing operations.
第1図ないし第7図はこの発明による樹脂材のNG加工
法の手順を示す斜視図、第8図および第9図は従来の加
工法の2例を示す斜視図である。
10・・・NGII械
31・・・定盤
35・・・成形型
37・・・立体加工物
40・・・樹脂
出願人 トヨタ自動車株式会社
代理人 弁理士 岡田英彦 外2名第番図
第Q図1 to 7 are perspective views showing the steps of the NG processing method for resin materials according to the present invention, and FIGS. 8 and 9 are perspective views showing two examples of the conventional processing method. 10...NGII machine 31...Surface plate 35...Mold 37...Three-dimensional processed product 40...Resin applicant Toyota Motor Corporation representative Patent attorney Hidehiko Okada and 2 others No. Drawing No. Q figure
Claims (1)
形状をNC機械により切削加工して手仕上げを行なう工
程と、次いで削り代を含む立体加工物全体に相当する樹
脂を前記成形型に盛り付ける工程と、前記樹脂の硬化後
残り半面を前記樹脂上にNC機械により切削加工して手
仕上げを行う工程と、完成した立体加工物を前記成形型
から抜き出す工程とからなることを特徴とする樹脂材の
NC加工法。A step of manually finishing a half-face shape of the three-dimensional workpiece by cutting it using an NC machine into a mold fixed on a surface plate in advance, and then filling the mold with resin equivalent to the entire three-dimensional workpiece including the cutting allowance. a step of manually finishing the remaining half of the resin by cutting it with an NC machine after curing the resin, and a step of extracting the completed three-dimensional workpiece from the mold. NC processing method for materials.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20132285A JPS6263024A (en) | 1985-09-11 | 1985-09-11 | Numerically controlled machining method for plastic material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20132285A JPS6263024A (en) | 1985-09-11 | 1985-09-11 | Numerically controlled machining method for plastic material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6263024A true JPS6263024A (en) | 1987-03-19 |
Family
ID=16439085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20132285A Pending JPS6263024A (en) | 1985-09-11 | 1985-09-11 | Numerically controlled machining method for plastic material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6263024A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102303227A (en) * | 2011-08-01 | 2012-01-04 | 长沙重型机器制造有限责任公司 | Two novel cutting methods of sinuous rib plate |
-
1985
- 1985-09-11 JP JP20132285A patent/JPS6263024A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102303227A (en) * | 2011-08-01 | 2012-01-04 | 长沙重型机器制造有限责任公司 | Two novel cutting methods of sinuous rib plate |
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