JPH08229811A - Jig for polishing work - Google Patents
Jig for polishing workInfo
- Publication number
- JPH08229811A JPH08229811A JP7041501A JP4150195A JPH08229811A JP H08229811 A JPH08229811 A JP H08229811A JP 7041501 A JP7041501 A JP 7041501A JP 4150195 A JP4150195 A JP 4150195A JP H08229811 A JPH08229811 A JP H08229811A
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- jig
- work
- insert
- nest
- 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
- 238000005498 polishing Methods 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 4
- 238000007517 polishing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 244000309464 bull Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Jigs For Machine Tools (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はプラスチック製の光学部
品を射出成形するための金型において、特に入れ子を研
磨するときに必要となる入れ子の被加工物を保持する治
具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for injection molding a plastic optical component, and more particularly to a jig for holding a work piece of a nest which is necessary when polishing the nest.
【０００２】[0002]
【従来の技術】従来光学部品の金型入れ子を研磨する場
合、周囲の縁だれを防ぐためにヤトイと称する入れ子を
保持する治具が必要となり、入れ子との間に段差を生じ
させないためにすき間なく密着させた後、ヤトイと入れ
子を共加工しなければならない。図９は従来のヤトイを
示す説明図である。プラスチックの射出成形用の金型の
入れ子１は、例えば円弧状の曲面を有する板状のもの
で、加工面は板材の端面に相当する部分であるので、研
磨加工時の入れ子の保持が難かしい。そこで、従来は、
この入れ子１を挾む形状の部材（ヤトイ）２、３を予め
用意しておき、このヤトイによって入れ子１を保持し、
研磨加工を施していた。入れ子１は例えば鋼材を加工し
たものであって、ヤトイ２、３も入れ子と同質の材料で
つくられる。これは入れ子１とヤトイ２、３は同時に加
工を受けることとなるので、研磨対象となる入れ子１と
ヤトイ２、３が同時に減量される必要があることによ
る。2. Description of the Related Art Conventionally, when polishing a mold insert of an optical part, a jig called a toy is required to hold the insert in order to prevent edge fringes around the mold. After the close contact, the yatoy and the nest must be co-processed. FIG. 9 is an explanatory diagram showing a conventional toy. The mold insert 1 for plastic injection molding is, for example, a plate having an arcuate curved surface, and the processed surface is a portion corresponding to the end face of the plate material, so it is difficult to hold the insert during polishing. . So, conventionally,
Members (yatoys) 2 and 3 having a shape to sandwich the nest 1 are prepared in advance, and the nest 1 is held by the yatoi,
It had been polished. The nest 1 is, for example, a machined steel material, and the toys 2, 3 are also made of the same material as the nest. This is because the nest 1 and the toys 2 and 3 are processed at the same time, so that the nest 1 and the toys 2 and 3 to be polished need to be reduced at the same time.
【０００３】入れ子１を保持するヤトイ２、３は加工開
始前に入れ子１との間で段差、隙間等が生じないように
精密に加工する必要があり、また研磨加工中にも入れ子
１との間に段差や隙間が発生しないように保持する必要
がある。研磨加工は、鏡面を加工するために加工量は極
めて少ない。その上に、入れ子１に加えてヤトイ２、３
も共加工するために、加工効率は極めて低い。従来ヤト
イに関する工夫は例えば、特開平５−１７７５２７号公
報に開示されるようなロッドレンズの研磨に関するもの
以外は殆ど行われてこなかった。このように光学部品用
入れ子の加工には研磨加工を縁だれなく精密に行うため
にヤトイを用いることは必要不可欠の要件であった。Before the machining is started, the toys 2 and 3 for holding the nest 1 must be precisely machined so that there is no step or gap between the nest 1 and the nest 1. It is necessary to hold them so that there are no steps or gaps between them. Since the polishing process is performed on the mirror surface, the processing amount is extremely small. On top of that, in addition to nesting 1, yatoys 2, 3
Since it is also co-processed, the processing efficiency is extremely low. Conventionally, little effort has been made regarding the toy, except for those related to the polishing of rod lenses as disclosed in Japanese Patent Laid-Open No. 5-177527. As described above, it was essential to use the yatoys for the machining of the nests for the optical parts in order to perform the polishing process precisely without any edge.
【０００４】[0004]
【発明が解決しようとする課題】しかし、近年光学部品
に求められる形状は回転対称形状ばかりでなく回転非対
称の形状となってきている。その際、研磨の前工程であ
る研削工程では砥石をＸＺ方向に動かすことによって１
ラインの加工を行いＹ方向に微小な一定ピッチの移動を
行って再びＸＺ方向に１ラインの加工を行いこれを繰り
返すいわゆる、走査式の形状創成にならざるを得ない。
この加工は、円筒形状や球面のように、円筒研削や工作
物を回転させて球面に研削加工する場合と比較して極め
て多大な加工時間を要する。However, in recent years, not only the rotationally symmetrical shape but also the rotationally asymmetrical shape has been required for the optical parts. At that time, in the grinding process which is a pre-polishing process, the grinding stone is moved in the XZ direction to
There is no choice but to achieve a so-called scanning-type shape creation in which lines are processed, a small fixed pitch is moved in the Y direction, one line is processed again in the XZ direction, and this process is repeated.
This processing requires an extremely large processing time as compared with the case of cylindrical grinding or spherical grinding by rotating a workpiece like a cylindrical shape or a spherical surface.
【０００５】一方、従来のヤトイを用いた研磨方法で入
れ子の寸法に拘らず研磨ヘッドの径に対応した少なくと
も１０ｍｍ〜３０ｍｍ程度のヤトイが必要であった。こ
のヤトイに対しても走査式の形状創成が必要となり、た
とえ入れ子そのものは小さくても研磨に不可欠なヤトイ
のために、研削工程に多大な加工時間を要するという問
題があった。本発明はこのような問題を解決するために
研削加工する必要のない研磨加工用治具を提供するもの
である。On the other hand, with the conventional polishing method using a toy, a toy having a diameter of at least 10 mm to 30 mm corresponding to the diameter of the polishing head is required regardless of the size of the insert. This toy also requires a scanning-type shape creation, and even if the nest itself is small, it is an indispensable tool for polishing, so that there is a problem that a great amount of processing time is required for the grinding process. The present invention provides a polishing jig that does not require grinding to solve such a problem.
【０００６】[0006]
【課題を解決するための手段】本発明の研磨加工用治具
は、入れ子と同材質の粒子または、線状あるいは、板状
などの形状転写が自在な部材を使用し、これを溶融固化
により部材を固定できる部材で治具を形成する。The jig for polishing of the present invention uses particles of the same material as that of the insert, or a member such as a linear shape or a plate shape, which can be freely transferred, and is melted and solidified. The jig is formed by a member that can fix the member.
【０００７】[0007]
【作用】このような手段で形成された治具は、入れ子と
同じ材質の部材を用いているため研磨性に差がなく、ま
た形状は入れ子と連続的に転写されるため研磨性に差が
ない。また、研削により加工する必要がないために極め
て短時間に作成できる。With the jig formed by such means, there is no difference in abradability because the member made of the same material as the nest is used, and since the shape is continuously transferred to the nest, there is no difference in abradability. Absent. Further, since it is not necessary to process by grinding, it can be created in an extremely short time.
【０００８】[0008]
【実施例】図１は本発明の研磨加工用治具の説明図、図
２は図１のＡ部の拡大図である。全体を符号１０で示す
治具は、板状の入れ子１を線状の部材２０で囲み、ワッ
クス等の固定部材３０で一体に固着した構造を有する。
例えば、入れ子１が鋼材製の場合には、部材２０も鋼材
の針金を使用する。線状部材２０は、例えば外径寸法が
３ｍｍ程度のものを使用し、入れ子１の外周部分を３０
ｍｍ程度の厚さに密集して囲み、ワックス３０等の固定
部材で固化させて製作する。線状部材２０の高さ寸法
は、入れ子１の高さ寸法に対応する。1 is an explanatory view of a polishing jig of the present invention, and FIG. 2 is an enlarged view of a portion A in FIG. A jig indicated by reference numeral 10 has a structure in which a plate-shaped insert 1 is surrounded by a linear member 20 and integrally fixed by a fixing member 30 such as wax.
For example, when the insert 1 is made of steel, the member 20 is also made of steel. As the linear member 20, for example, one having an outer diameter of about 3 mm is used, and the outer peripheral portion of the insert 1 is set to 30 mm.
It is manufactured by densely surrounding it with a thickness of about mm and solidifying it with a fixing member such as wax 30. The height dimension of the linear member 20 corresponds to the height dimension of the nest 1.
【０００９】図３は、以上のようにして製作された治具
１０に対して研磨ヘッド５０により研磨加工を施す状態
を示す。研磨ヘッド５０の先端部には例えば研磨クロス
等の研磨工具５２が装着される。研磨工具５２をとりつ
けた研磨ヘッド５０は、治具１０の表面に接触しつつ振
動等の駆動力が与えられる。この作用によって研磨工具
５２は加工対象である入れ子１とともに線状部材２０の
端面を研磨する。固定部材３０は、線状部材２０よりも
加工性の高い材料が選択される。この結果、研磨工具５
２が加工する加工総量は減量され、入れ子１の加工時間
は短縮される。また、入れ子１の縁にもだれが発生せ
ず、良好な入れ子を得ることができた。FIG. 3 shows a state where the polishing head 50 polishes the jig 10 manufactured as described above. A polishing tool 52 such as a polishing cloth is attached to the tip of the polishing head 50. The polishing head 50 to which the polishing tool 52 is attached is in contact with the surface of the jig 10 and is given a driving force such as vibration. By this action, the polishing tool 52 polishes the end face of the linear member 20 together with the insert 1 to be processed. For the fixing member 30, a material having higher workability than the linear member 20 is selected. As a result, the polishing tool 5
The total processing amount that 2 processes is reduced, and the processing time of the insert 1 is shortened. Further, no dripping occurred on the edge of the nest 1, and good nesting could be obtained.
【００１０】図４、図５は、治具１０の製作手段を示す
説明図である。例えば、入れ子１の加工表面形状が円弧
面の場合には、まず、図４に示すように、治具組立用の
型部材６０を回転工具７０を用いて加工し、円弧面６２
を加工する。次に図５に示すように、組立用の型部材６
０の円弧面６２に対して垂直になるように入れ子１と線
状部材２０を押し付け、固定部材３０で固める。この一
連の作業によって研磨加工用治具１０を能率よく製作す
ることができる。FIGS. 4 and 5 are explanatory views showing the manufacturing means of the jig 10. For example, when the processing surface shape of the insert 1 is an arc surface, first, as shown in FIG. 4, the jig assembly mold member 60 is processed by using the rotary tool 70 to form the arc surface 62.
To process. Next, as shown in FIG. 5, a mold member 6 for assembly is used.
The insert 1 and the linear member 20 are pressed so as to be perpendicular to the circular arc surface 62 of 0, and fixed by the fixing member 30. Through this series of operations, the polishing jig 10 can be efficiently manufactured.
【００１１】図６は研磨加工用治具の組立用型部材８０
の表面形状８２が自由曲面の場合の加工手段を示す。加
工工具９０はボ−ルエンドミル等を用い、加工工具９０
をとりつけた加工ヘッドと型部材８０をとりつけたテ−
ブルとを相対的に三次元に制御して、自由曲面８２を加
工する。そして、この自由曲面８２に対して垂直方向に
入れ子と線状部材とをつき当てて、接着剤で固めること
によって研磨加工用の治具を能率よく製作することがで
きる。FIG. 6 shows a die member 80 for assembling a polishing jig.
The processing means when the surface shape 82 of FIG. For the processing tool 90, a ball end mill or the like is used.
The machining head with the attached die and the tape with the die member 80 attached.
The free curved surface 82 is processed by relatively controlling the bull and the three-dimensional shape. Then, the insert and the linear member are brought into contact with the free curved surface 82 in the vertical direction and fixed with an adhesive, so that the jig for polishing can be efficiently manufactured.
【００１２】図７は本発明の他の実施例を示す図２と同
様の拡大図である。本実施例の研磨加工用治具は、研磨
加工の対象である金型入れ子１の周囲に粒子状の部材１
００を充填し、固定部材１１０で固めたものである。粒
状部材１００は入れ子１の材料と同じ材料を用い、入れ
子１の周囲に厚さ３０ｍｍ程度の壁を形成する。この治
具の組立に際して、図５、図６で説明した型部材を用い
ることによって能率のよい作業が実行できる。本実施例
にあっても、先の研磨加工条件と同様に、研磨ヘッド５
０の加工圧を１０〜２０Ｎ／ｍ2、研磨ヘッド５０の送
り速度を１０〜２０ｍｍ／ｓｅｃとし、研磨工具として
ダイヤモンドペ−ストの砥粒を段階的に細かくしつつ加
工した結果、入れ子１の表面を０．０３５μｍＲｍａｘ
程度の鏡面に加工することができた。FIG. 7 is an enlarged view similar to FIG. 2 showing another embodiment of the present invention. The polishing jig of the present embodiment has a particulate member 1 around the mold insert 1 which is the object of polishing.
00 is filled and fixed with the fixing member 110. The same material as that of the insert 1 is used for the granular member 100, and a wall having a thickness of about 30 mm is formed around the insert 1. At the time of assembling this jig, efficient work can be performed by using the mold member described in FIGS. Also in the present embodiment, the polishing head 5 is used in the same manner as the above polishing processing conditions.
The processing pressure of 0 was set to 10 to 20 N / m 2 , the feed rate of the polishing head 50 was set to 10 to 20 mm / sec, and as a result of processing the abrasive grains of the diamond paste as a polishing tool while making them finer in stages, 0.035 μm Rmax on the surface
It was possible to process it to a mirror surface.
【００１３】図８は本発明の更に他の実施例を示す図２
と同様の拡大図である。本実施例の研磨加工用治具は、
研磨加工の対象である金型入れ子１の周囲に板状の部材
１２０を積層し、固定部材１３０で固めたものである。
板状部材１２０は入れ子１の材料と同じ材料を用い、厚
さ２ｍｍ程度のものを入れ子１の周囲に厚さ３０ｍｍ程
度の壁を形成する。この治具の組立に際して、図５、図
６で説明した型部材を用いることによって能率のよい作
業が実行できる。本実施例にあっても、先の研磨加工条
件と同様に、研磨ヘッド５０の加工圧を１０〜２０Ｎ／
ｍ2、研磨ヘッド５０の送り速度を１０〜２０ｍｍ／ｓ
ｅｃとし、研磨工具としてダイヤモンドペ−ストの砥粒
を段階的に細かくしつつ加工した結果、入れ子１の表面
を０．０３５μｍＲｍａｘ程度の鏡面に加工することが
できた。FIG. 8 shows another embodiment of the present invention, which is shown in FIG.
It is an enlarged view similar to. The polishing jig of this example is
The plate-shaped member 120 is laminated around the mold insert 1 which is the object of polishing, and is fixed by the fixing member 130.
The plate-like member 120 is made of the same material as the material of the insert 1, and a plate having a thickness of about 2 mm is formed around the insert 1 with a wall having a thickness of about 30 mm. At the time of assembling this jig, efficient work can be performed by using the mold member described in FIGS. Also in this embodiment, the processing pressure of the polishing head 50 is 10 to 20 N / similar to the above polishing processing conditions.
m 2 , the feed rate of the polishing head 50 is 10 to 20 mm / s
As a result of processing with ec as the polishing tool while making the abrasive grains of the diamond paste finer step by step, the surface of the insert 1 was able to be processed into a mirror surface of about 0.035 μm Rmax.
【００１４】[0014]
【発明の効果】本発明は以上のように、射出成形用の金
型の入れ子のように研磨加工時の保持が難しく、しかも
研磨部の縁部の研磨だれの発生を避ける部材の研磨加工
時の取付治具にあって、被加工物と同じ材質の線材、粒
材、板材等で被加工物をとり囲み、固定部材であるワッ
クスで固めたものである。したがって、被加工物の周囲
は被加工物と同材質でありながら密度が小さくなるの
で、共加工の効率が向上する。しかも被加工物の研磨面
の縁だれも発生しない。治具を組み立てる際には、被加
工面を転写した型部材を用いることによって、効率よく
治具を製作することができる。INDUSTRIAL APPLICABILITY As described above, according to the present invention, it is difficult to hold a member such as a mold for injection molding during polishing, and moreover, during polishing of a member for avoiding occurrence of polishing sag at the edge of the polishing portion. In the attachment jig, the work piece is surrounded by a wire rod, a granular material, a plate material and the like made of the same material as the work piece, and the work piece is fixed with wax as a fixing member. Therefore, since the density of the periphery of the work piece is the same as that of the work piece, the density of the work piece is small, and the efficiency of co-working is improved. Moreover, no edging of the polished surface of the work piece occurs. When assembling the jig, the jig can be efficiently manufactured by using the mold member to which the surface to be processed is transferred.
【図１】 本発明の実施例を示す説明図。FIG. 1 is an explanatory view showing an embodiment of the present invention.
【図２】 図１のＡ部の拡大図。FIG. 2 is an enlarged view of part A in FIG.
【図３】 本発明による研磨加工を示す説明図。FIG. 3 is an explanatory view showing a polishing process according to the present invention.
【図４】 研磨加工用治具の組立用型部材の製作手段を
示す説明図。FIG. 4 is an explanatory view showing a manufacturing means of a die member for assembling a polishing jig.
【図５】 研磨加工用治具の組立方法を示す説明図。FIG. 5 is an explanatory view showing an assembling method of a polishing jig.
【図６】 研磨加工用治具の組立用型部材の製作手段を
示す説明図。FIG. 6 is an explanatory view showing a means for producing a die member for assembling a polishing jig.
【図７】 本発明の他の実施例を示す説明図。FIG. 7 is an explanatory view showing another embodiment of the present invention.
【図８】 本発明の他の実施例を示す説明図。FIG. 8 is an explanatory view showing another embodiment of the present invention.
【図９】 従来の加工治具を示す説明図。FIG. 9 is an explanatory view showing a conventional processing jig.
１ 被加工物（金型入れ子）、 １０ 研磨加工用治
具、 ２０ 線状部材、３０ 固定部材、 ５０ 研磨
加工ヘッド、 ５２ 研磨工具、 ６０ 研磨加工用治
具組立用型部材、 １００ 粒状部材、 １２０ 板状
部材。DESCRIPTION OF SYMBOLS 1 Work piece (mold nest), 10 Polishing jig, 20 Linear member, 30 Fixing member, 50 Polishing head, 52 Polishing tool, 60 Polishing jig assembly die member, 100 Granular member, 120 Plate-shaped member.
Claims (3)
材と接着剤とを備え、被加工物の周囲の空間を線状部材
と固定部材により充填し、被加工物と線状部材とを加工
すべき曲面に揃えた状態で固めて形成される研磨加工用
治具。1. A linear member made of the same material as a workpiece and an adhesive, wherein a space around the workpiece is filled with a linear member and a fixing member to form the workpiece and the linear member. A jig for polishing, which is formed by solidifying and aligning with the curved surface to be processed.
と接着剤とを備え、被加工物の周囲の空間を粒状部材と
固定部材により充填し、被加工物と粒状部材とを加工す
べき曲面に揃えた状態で固めて形成される研磨加工用治
具。2. A granular member made of the same material as the workpiece and an adhesive are provided, and the space around the workpiece is filled with the granular member and the fixing member to process the workpiece and the granular member. A polishing jig that is hardened and formed in a state that it is aligned with a curved surface.
と接着剤とを備え、被加工物の周囲の空間を板状部材と
固定部材により充填し、被加工物と板状部材とを加工す
べき曲面に揃えた状態で固めて形成される研磨加工用治
具。3. A plate-shaped member made of the same material as the work piece and an adhesive, wherein the space around the work piece is filled with the plate-shaped member and the fixing member to form the work piece and the plate-shaped member. A jig for polishing, which is formed by solidifying and aligning with the curved surface to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7041501A JPH08229811A (en) | 1995-03-01 | 1995-03-01 | Jig for polishing work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7041501A JPH08229811A (en) | 1995-03-01 | 1995-03-01 | Jig for polishing work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08229811A true JPH08229811A (en) | 1996-09-10 |
Family
ID=12610113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7041501A Pending JPH08229811A (en) | 1995-03-01 | 1995-03-01 | Jig for polishing work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08229811A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009096219A1 (en) * | 2008-01-31 | 2009-08-06 | Konica Minolta Opto, Inc. | Method for machining die, die for injection molding, and optical element |
| JP2010006693A (en) * | 2008-06-20 | 2010-01-14 | Soc Europeenne De Systemes Optiques | Method of shaping aspherical optical element |
| CN110682186A (en) * | 2018-11-14 | 2020-01-14 | 住华科技股份有限公司 | Smelting tool and grinding method applying same |
-
1995
- 1995-03-01 JP JP7041501A patent/JPH08229811A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009096219A1 (en) * | 2008-01-31 | 2009-08-06 | Konica Minolta Opto, Inc. | Method for machining die, die for injection molding, and optical element |
| JP2010006693A (en) * | 2008-06-20 | 2010-01-14 | Soc Europeenne De Systemes Optiques | Method of shaping aspherical optical element |
| CN110682186A (en) * | 2018-11-14 | 2020-01-14 | 住华科技股份有限公司 | Smelting tool and grinding method applying same |
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