JPS6240131B2 - - Google Patents
Info
- Publication number
- JPS6240131B2 JPS6240131B2 JP2362782A JP2362782A JPS6240131B2 JP S6240131 B2 JPS6240131 B2 JP S6240131B2 JP 2362782 A JP2362782 A JP 2362782A JP 2362782 A JP2362782 A JP 2362782A JP S6240131 B2 JPS6240131 B2 JP S6240131B2
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- liquid
- cavity
- freezing
- freezing frame
- 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.)
- Expired
Links
- 238000007710 freezing Methods 0.000 claims description 18
- 230000008014 freezing Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Description
【発明の詳細な説明】
この発明は機械加工すべきワークを指向性凝固
を利用して固定する冷凍チヤツク方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a frozen chuck method for fixing a workpiece to be machined using directional solidification.
従来機械加工すべきワークを凍結により冷凍枠
などに固定する方法がすでに採用されているが、
ワークが小型軽量の場合、従来のチヤツク方法で
は液体凝固時の体積の増大によりワークが浮き上
るなどして、予め所定の位置に位置決めしても固
定位置が狂う虞れがある。 Conventionally, a method has already been adopted in which the workpiece to be machined is fixed in a freezing frame etc. by freezing.
When the workpiece is small and lightweight, in the conventional chuck method, the workpiece may float due to the increase in volume when the liquid solidifies, and there is a risk that the fixed position may be deviated even if the workpiece is previously positioned at a predetermined position.
そこで従来では液体が凝固する前にワークに荷
重を加えて凝固時ワークが浮き上るのを防止して
いるが、この方法ではワークに荷重を加えるため
の設備などを必要とするなど、装置が大掛りとな
る不具合があつた。 Conventionally, a load is applied to the workpiece before the liquid solidifies to prevent the workpiece from floating during solidification, but this method requires equipment to apply a load to the workpiece, and the equipment is large. There was a problem that caused a problem.
この発明はかかる不具合を改善する目的でなさ
れたもので、ワークを凍結固定する液体を指向性
凝固させることにより、ワークを浮き上らせるこ
となく所定の位置に固定できるようにした冷凍チ
ヤツク方法を提供して、大掛な設備を必要とせず
にワークの機械加工を可能としたものである。 This invention was made with the aim of improving this problem, and provides a freezing chuck method that allows the workpiece to be fixed in a predetermined position without floating by directional solidification of the liquid that freezes and fixes the workpiece. This enables machining of workpieces without the need for large-scale equipment.
以下この発明の一実施例を図面を参照して詳述
すると、図において１は機械加工すべきワーク２
を固定するための冷凍枠で、ワーク２よりやや大
きなキヤビテイ１ａを有しており、キヤビテイ１
ａの開口部には段部１ｂが設けられていて、この
段部１ｂにワーク２の加工基準面２ａが密着でき
るようになつている。上記ワーク２は例えば上部
及び下部にフランジ２ｂ，２ｃを有する形状で、
上部フランジ２ｂの下面が加工基準面２ａとなつ
ていると共に、キヤビテイ１ａ内に位置する下部
フランジ２ｃのやや上側にはキヤビテイ１ａの内
面より突設した突出部１ｃが近接されている。 An embodiment of the present invention will be described below in detail with reference to the drawings. In the drawings, 1 indicates a workpiece 2 to be machined.
This is a freezing frame for fixing the workpiece, and has a cavity 1a that is slightly larger than the workpiece 2.
A step portion 1b is provided in the opening of a, and the machining reference surface 2a of the workpiece 2 can be brought into close contact with this step portion 1b. The work 2 has, for example, a shape with flanges 2b and 2c at the upper and lower parts,
The lower surface of the upper flange 2b serves as a processing reference surface 2a, and a protruding portion 1c protruding from the inner surface of the cavity 1a is located slightly above the lower flange 2c located within the cavity 1a.
上記構成のワーク２の固定に当つては冷凍枠１
のキヤビテイ１ａ底面に断熱効果を有するゴムま
たはプラスチツクなどからなる断熱材３を一杯に
敷設し、このキヤビテイ１ａ内にワーク２を収容
して、ワーク２の加工基準面２ａを冷凍枠１の段
部１ｂに密着させる。この状態で冷凍枠１ごとワ
ーク２を冷凍庫へ投入して冷凍枠１及びワーク２
を例えば約−30℃に冷却する。冷却が完了したら
取出して冷凍枠１のキヤビテイ１ａ内に凍結しや
すい水などの液体を一杯に注入すると、キヤビテ
イ１ａ内の液体は冷凍枠１により冷却されて冷結
を開始する。このときワーク２の下側のフランジ
２ｃのやや上側に近接された突出部１ｃ付近の液
体から凍結されて、まず下部フランジ２ｃの上面
近傍が固定され、その後キヤビテイ１ａの上層部
へと凍結する指向性凝固となるため、はじめに凍
結された下層部の液体がワーク２の浮き上りを防
止する押え治具の役目を果し、これによりワーク
２の加工基準面２ａを段部１ｂから浮き上らせる
ことなく冷凍枠１の所定位置にワーク２を固定す
ることができる。冷凍枠１に固定されたワーク２
は冷凍枠１を工作機械などの所定位置に固定す
る。ことによりワーク２の機械加工が可能とな
る。 When fixing workpiece 2 with the above configuration, freeze frame 1
A heat insulating material 3 made of rubber or plastic having a heat insulating effect is completely laid on the bottom of the cavity 1a, a workpiece 2 is housed in the cavity 1a, and the processing reference surface 2a of the workpiece 2 is aligned with the step of the freezing frame 1. Bring it into close contact with 1b. In this state, put the work 2 together with the freezing frame 1 into the freezer and freeze the frame 1 and the work 2.
for example, to about -30°C. When the cooling is completed, it is taken out and a liquid such as water that easily freezes is poured into the cavity 1a of the freezing frame 1. When the liquid in the cavity 1a is cooled by the freezing frame 1, freezing starts. At this time, the liquid is frozen from the vicinity of the protrusion 1c that is close to the slightly upper side of the lower flange 2c of the workpiece 2, and the vicinity of the upper surface of the lower flange 2c is first fixed, and then the liquid is frozen to the upper layer of the cavity 1a. As the liquid solidifies, the liquid in the lower layer that is frozen first acts as a holding jig to prevent the workpiece 2 from floating up, thereby lifting the processing reference surface 2a of the workpiece 2 from the stepped portion 1b. The workpiece 2 can be fixed at a predetermined position in the freezing frame 1 without any trouble. Workpiece 2 fixed in freezing frame 1
The freezing frame 1 is fixed at a predetermined position on a machine tool or the like. This makes it possible to machine the workpiece 2.
この発明は以上詳述したように、冷凍枠内に収
容したワークの一部を液体の指向性凝固を利用し
てまず固定し、その後ワーク全体を凍結固定する
ようにしたことから、小型軽量のワークであつて
も、凍結時浮き上つて位置が狂うなどの虞れがな
いと共に、浮き上りを防止するための設備を必要
としないため、安価に実施することも可能であ
る。 As described in detail above, this invention first fixes a part of the workpiece housed in the freezing frame using directional solidification of liquid, and then freezes and fixes the entire workpiece. Even if the workpiece is frozen, there is no risk of it floating up and getting out of position, and since there is no need for equipment to prevent floating, it can be carried out at low cost.
図面はこの発明の一実施例を示す断面図であ
る。
１は冷凍枠、１ａはキヤビテイ、２はワーク。
The drawing is a sectional view showing an embodiment of the present invention. 1 is the freezing frame, 1a is the cavity, and 2 is the workpiece.
Claims (1)
１ａ内に収容し、かつこの状態で冷凍枠１及びワ
ーク２を液体の凍結温度以下に冷却した後上記キ
ヤビテイ１ａ内に液体を注入して、この液体を凝
固させることによりワークを固定するチヤツク方
法において、上記キヤビテイ１ａ内に注入された
液体を、ワーク２または冷凍枠１の任意な場所よ
り凝固させてワーク２の一部を固定した後液体全
体を凝固させることにより、ワーク２全体を固定
することを特徴とする冷凍チヤツク方法。1. The workpiece 2 to be fixed is placed in the cavity 1a of the freezing frame 1, and in this state, the freezing frame 1 and the workpiece 2 are cooled to below the freezing temperature of the liquid, and then a liquid is injected into the cavity 1a. In the chuck method of fixing a workpiece by solidifying a liquid, the liquid injected into the cavity 1a is solidified from an arbitrary location of the workpiece 2 or the freezing frame 1 to fix a part of the workpiece 2, and then the entire liquid is A frozen chuck method characterized by fixing the entire workpiece 2 by solidifying it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2362782A JPS58143930A (en) | 1982-02-18 | 1982-02-18 | Refrigerating chuck method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2362782A JPS58143930A (en) | 1982-02-18 | 1982-02-18 | Refrigerating chuck method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58143930A JPS58143930A (en) | 1983-08-26 |
| JPS6240131B2 true JPS6240131B2 (en) | 1987-08-26 |
Family
ID=12115826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2362782A Granted JPS58143930A (en) | 1982-02-18 | 1982-02-18 | Refrigerating chuck method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58143930A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4754535A (en) * | 1986-05-02 | 1988-07-05 | Tizzi Valtiero | Method and machine for the embellishment of precoined metal strip, utilizing continuous stock or discrete lengths |
-
1982
- 1982-02-18 JP JP2362782A patent/JPS58143930A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58143930A (en) | 1983-08-26 |
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