JPH0537404U - Work pressing device - Google Patents
Work pressing deviceInfo
- Publication number
- JPH0537404U JPH0537404U JP9322491U JP9322491U JPH0537404U JP H0537404 U JPH0537404 U JP H0537404U JP 9322491 U JP9322491 U JP 9322491U JP 9322491 U JP9322491 U JP 9322491U JP H0537404 U JPH0537404 U JP H0537404U
- Authority
- JP
- Japan
- Prior art keywords
- work
- pressing device
- blade
- chuck
- closed
- 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.)
- Granted
Links
Landscapes
- Gripping On Spindles (AREA)
- Feeding Of Workpieces (AREA)
- Turning (AREA)
Abstract
(57)【要約】
【目的】 旋盤のタレット刃物台等に取付けるワーク押
し付け装置において、刃物台の最大旋回径による制限を
受けることなく、隣接工具に干渉することのない軸心部
に穴又はくぼみを有する大径ワーク用のワーク押し付け
装置を提供する。
【構成】 エアシリンダ部２，旋回軸支持部３，蓋４に
より本体を構成し、エアシリンダのピストンロッド７先
端に固着のアーム９端を、支持部３に設けた旋回軸５の
傾斜溝５ａに軸方向移動可能に係合させ、エアの切換え
で当て金翼１１を開閉させ、ワーク押し付け時には当て
金翼を開き、使用しないときには当て金翼を閉じる。
(57) [Abstract] [Purpose] In a work pressing device to be attached to a turret tool post of a lathe, there is no restriction by the maximum turning diameter of the tool post, and there is no hole or recess in the shaft center that does not interfere with the adjacent tool. There is provided a work pressing device for a large-diameter work having a. [Structure] A main body is composed of an air cylinder portion 2, a swivel shaft support portion 3, and a lid 4, and an end of an arm 9 fixed to a tip of a piston rod 7 of an air cylinder is provided with an inclined groove 5a of a swivel shaft 5 provided on a support portion 3. Is engaged so as to be movable in the axial direction, and the cover blade 11 is opened and closed by switching the air, the cover blade is opened when the work is pressed, and the cover blade is closed when the work is not used.
Description
【０００１】[0001]
本考案は例えば旋盤等の主軸チャックに軸心部に穴又はくぼみを有する比較的 大径のワークを取付ける際に、ワークをチャックの基準端面に押し付けるための 装置に関するものである。 The present invention relates to an apparatus for pressing a work on a reference end surface of the chuck when mounting a work having a relatively large diameter having a hole or a depression in its shaft center on a spindle chuck such as a lathe.
【０００２】[0002]
従来、ワークを主軸チャックに取付ける際、ワークを取付け基準端面に押し付 けて軸方向の加工精度を安定させる必要がある。この取付け基準端面にワークを 押し付ける方法は種々に考案がなされているが、例えばＮＣ旋盤においては、図 ５に示すようにタレット１０１の工具取付ステーションに、ワーク押し付け装置 １０２を取付け、刃物台１０３の軸移動を利用してワークＷをチャック１０４の 取付基準端面に押し付けていた。この場合こじれを無くするためには押し付け装 置１０２をワークＷと同心にして押し付ける必要があり、大径中空ワークの場合 、当て金１０２ａをワーク径に合わせて大きくする必要があった。 Conventionally, when attaching a work to a spindle chuck, it is necessary to press the work against the attachment reference end face to stabilize the machining accuracy in the axial direction. Various methods have been devised for pressing the workpiece against the mounting reference end surface. For example, in an NC lathe, the workpiece pressing device 102 is attached to the tool attaching station of the turret 101 as shown in FIG. The work W was pressed against the mounting reference end surface of the chuck 104 by utilizing the axial movement. In this case, in order to eliminate twisting, it is necessary to press the pressing device 102 concentrically with the work W, and in the case of a large-diameter hollow work, it is necessary to increase the pad 102a in accordance with the work diameter.
【０００３】[0003]
従来の技術で述べた大きな当て金を有する押し付け装置は、図６に示すように サドルカバーとの干渉を避けるための刃物台の最大旋回径による制限があり、両 側の隣接工具は当て金が干渉するため両側の隣接工具は取付けが不可能になると いう問題点を有していた。 本考案は従来の技術の有するこのような問題点に鑑みなされたものであり、そ の目的とするところは、隣接工具に干渉することなく、刃物台の最大旋回径に制 限されることのない軸心部に穴又はくぼみを有する大径ワーク用のワーク押し付 け装置を提供しようとするものである。 As shown in Fig. 6, the pressing device with a large metal pad described in the prior art is limited by the maximum turning diameter of the tool post to avoid interference with the saddle cover, and the adjacent tools on both sides have metal plates. There was a problem that adjacent tools on both sides could not be attached due to interference. The present invention has been made in view of the above problems of the conventional technology, and its purpose is to limit the maximum turning diameter of the tool post without interfering with an adjacent tool. An object of the present invention is to provide a work pressing device for a large-diameter work which has a hole or a depression in the center of the shaft.
【０００４】[0004]
上記目的を達成するために本考案におけるワーク押し付け装置は、大径の軸心 部に穴又はくぼみを有するワークをチャックの取付け基準端面に押し付ける装置 であって、本体の同心円上等間隔に軸方向を向いて回転可能に設けられた複数の 旋回軸と、前記本体内に設けられ該複数の旋回軸を同時に同一方向に旋回させる 流体圧駆動手段と、前記旋回軸端にそれぞれ固着され前記流体圧駆動手段により 開閉される当て金翼とを含んでなり、必要時以外は当て金翼が閉じるようにする ものである。 In order to achieve the above object, the work pressing device according to the present invention is a device for pressing a work having a hole or a depression in a large-diameter shaft center portion against a reference mounting end surface of a chuck, and in the axial direction at equal intervals on concentric circles of the body. A plurality of swivel shafts that are rotatably provided facing each other, a fluid pressure drive unit that is provided in the main body and that swivels the plurality of swivel shafts in the same direction simultaneously, It comprises a cover blade that is opened and closed by a driving means, and the cover blade is closed except when necessary.
【０００５】[0005]
例えばＮＣ旋盤の刃物台タレットに装置されたワーク押し付け装置により、チ ャックに取付けた大径中空ワークの押し付けを行う場合、ワーク押し付け装置を チャックと同心に位置決めして、早送り速度でワークに接近させ、工作物の手前 で流体圧シリンダの後室にエアを送って当て金翼を開き、同時に送りを低速に切 換えて更にワークに接近当接させて停止し、当て金翼の弾性を利用してワークを 押圧しチャックの把持爪を開閉させてつかみ直しを行い、正確にワーク端面がチ ャックの取付基準端面に当たった状態とする。 For example, when pressing a large-diameter hollow work mounted on a chuck with a work pressing device mounted on the tool post turret of an NC lathe, position the work pressing device concentrically with the chuck and bring it closer to the work at a rapid feed rate. In front of the workpiece, air is sent to the rear chamber of the fluid pressure cylinder to open the cover blade, and at the same time, the feed is switched to a low speed to bring it into closer contact with the workpiece and stop it. Press the work to open and close the gripping claws of the chuck, and then re-grip the work so that the work end face is accurately in contact with the reference mounting end face of the chuck.
【０００６】[0006]
実施例について図１〜図４を参照して説明する。 公知のＮＣ旋盤において、Ｘ・Ｚ軸方向に移動位置決め可能な図示しない刃物 台に、タレット１が旋回割出し可能に設けられている。タレット１の端面に設け られた複数の工具取付ステーションの一つに、ワーク押し付け装置が着脱可能に 取付けられている。ワーク押し付け装置の本体は、エアシリンダ部２と旋回軸支 持部３と蓋４とにより構成されており、支持部３，蓋４の同心円周上３等分位置 に、軸方向を向いて旋回軸５が回転可能に支持されている。エアシリンダ２に嵌 挿されるピストン６と一体のピストンロッド７は、先端部が支持部３の大径穴３ ａ内に突出しており、ピストン６はばね８により常時引込勝手に付勢されている 。旋回軸５の外周には図４に示すような傾斜溝５ａが刻設されており、この傾斜 溝５ａにピストンロッド７先端に固着のアーム９の先端が移動可能に係合されて いる。旋回軸５の先端に円弧形状の当て金翼１１がそれぞれ固着されている。 Examples will be described with reference to FIGS. 1 to 4. In a known NC lathe, a turret 1 is provided so as to be capable of swivel indexing on a tool post (not shown) that can be moved and positioned in the X and Z axis directions. A work pressing device is detachably attached to one of a plurality of tool attachment stations provided on the end surface of the turret 1. The body of the work pressing device is composed of an air cylinder part 2, a swivel shaft support part 3 and a lid 4, and swivels in the axial direction at three equidistant positions on the concentric circumference of the support part 3 and the lid 4. The shaft 5 is rotatably supported. A piston rod 7 integrated with the piston 6 fitted into the air cylinder 2 has a tip portion protruding into the large diameter hole 3a of the support portion 3, and the piston 6 is always biased by a spring 8 freely. . An inclined groove 5a as shown in FIG. 4 is formed on the outer circumference of the swivel shaft 5, and the tip of the arm 9 fixed to the tip of the piston rod 7 is movably engaged with the inclined groove 5a. Arc-shaped backing blades 11 are fixed to the tip of the swivel shaft 5, respectively.
【０００７】 続いて本実施例の作用について説明する。 図示しない主軸チャックに中空のワークＷがローダ又はロボット等により取付 けられたあと、タレットが旋回してワーク押し付け装置が加工位置に割出され、 刃物台のＸ軸移動でワーク押し付け装置がチャックと同心に位置決めされたのち 、刃物台のＺ軸移動でワークＷの手前位置まで早送り速度で接近する。そしてエ アシリンダ２の後室に圧力空気が送られて、ばね８の力に抗してピストンロッド ７を押し出し、傾斜溝５ａ内をアーム９の先端が軸方向に摺動することにより当 て金翼１１が開かれたのち、刃物台が低速に切り換えられてチャック側にＺ軸移 動して当て金翼がワークＷの端面に当接し、当て金翼１１の弾性を利用してワー クをチャック側に押圧した状態で刃物台のＺ軸位置決めが行われる。 次いでチャック把持爪の開閉が行われて、ワーク端面がチャックの取付基準面 に確実に当接した状態となって掴み直しが完了し、刃物台の反チャック側へのＺ 軸移動で当て金翼１１が工作物から離れる。Next, the operation of this embodiment will be described. After the hollow work W is attached to the spindle chuck (not shown) by the loader or robot, the turret rotates and the work pressing device is indexed to the machining position. The work pressing device moves to the chuck by the X-axis movement of the tool post. After being positioned concentrically, the tool post approaches the front position of the work W at the rapid feed speed by the Z-axis movement. Then, pressurized air is sent to the rear chamber of the air cylinder 2 to push out the piston rod 7 against the force of the spring 8, and the tip of the arm 9 slides axially in the inclined groove 5a to apply the metal. After the blade 11 is opened, the tool post is switched to the low speed and the Z-axis is moved to the chuck side so that the caulking blade comes into contact with the end surface of the work W, and the elasticity of the caulking blade 11 is used to move the work. The Z-axis positioning of the tool rest is performed in a state of being pressed to the chuck side. Next, the chuck gripping claws are opened and closed, the work end surface is securely in contact with the chuck mounting reference surface, and re-gripping is completed, and the tool blade is moved by the Z axis movement of the tool post to the opposite chuck side. 11 moves away from the work piece.
【０００８】[0008]
本考案は上述のとおり構成されているので、次に記載する効果を奏する。 本体内に流体圧シリンダを組み込んで、当て金翼を開閉するようにし、中空ワ ークの端面を開いた当て金翼により押圧して、取付基準端面に押し付けるように したので、特に大径の中空ワークの押し付けが可能になるとともに隣接工具との 干渉がなくなる。 Since the present invention is configured as described above, it has the following effects. Since a fluid pressure cylinder was installed in the main body to open and close the paddle blade, and the end face of the hollow work was pressed by the open paddle blade and pressed against the mounting reference end face, a particularly large diameter The hollow work can be pressed and there is no interference with adjacent tools.
【図１】本実施例のワーク押し付け装置の斜視姿図であ
る。FIG. 1 is a perspective view of a work pressing device of the present embodiment.
【図２】本実施例のワーク押し付け装置の側面図で図３
のＡ−Ａ線視断面図である。FIG. 2 is a side view of the work pressing device according to the present embodiment.
3 is a cross-sectional view taken along line AA of FIG.
【図３】図２の正面図である。FIG. 3 is a front view of FIG.
【図４】図２のＢ−Ｂ線視図である。4 is a BB line view of FIG. 2. FIG.
【図５】従来の技術のワーク押し付け装置付ＮＣ旋盤の
部分図である。FIG. 5 is a partial view of a conventional NC lathe with a work pressing device.
【図６】従来の技術の問題点説明用図である。FIG. 6 is a diagram for explaining problems in the conventional technique.
２ 本体のエアシリンダ部 ３ 本
体の旋回軸支持部 ４ 蓋 ５ 旋
回軸 ５ａ 傾斜溝 ９ ア
ーム １１ 当て金翼2 Air cylinder part of the main body 3 Swiveling shaft support part of the main body 4 Lid 5 Swiveling shaft 5a Inclined groove 9 Arm 11 Bracket blade
Claims (1)
クをチャックの取付け基準端面に押し付ける装置であっ
て、本体の同心円上等間隔に軸方向を向いて回転可能に
設けられた複数の旋回軸と、前記本体内に設けられ該複
数の旋回軸を同時に同一方向に旋回させる流体圧駆動手
段と、前記旋回軸端にそれぞれ固着され前記流体圧駆動
手段により開閉される当て金翼とを含んでなり、必要時
以外は当て金翼が閉じていることを特徴とするワーク押
し付け装置。1. A device for pressing a large-diameter workpiece having a hole or a depression in its axial center portion against a mounting reference end surface of a chuck, wherein a plurality of rotatably provided concentric circles of a main body are rotatably provided in the axial direction. A swivel shaft, a fluid pressure drive means provided in the main body for simultaneously swiveling the plurality of swivel shafts in the same direction, and a metal blade blade fixed to each end of the swivel shaft and opened and closed by the fluid pressure drive means. A work pressing device characterized in that the backing blade is closed except when necessary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9322491U JP2533680Y2 (en) | 1991-10-16 | 1991-10-16 | Work pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9322491U JP2533680Y2 (en) | 1991-10-16 | 1991-10-16 | Work pressing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0537404U true JPH0537404U (en) | 1993-05-21 |
| JP2533680Y2 JP2533680Y2 (en) | 1997-04-23 |
Family
ID=14076584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9322491U Expired - Lifetime JP2533680Y2 (en) | 1991-10-16 | 1991-10-16 | Work pressing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2533680Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7245658B2 (en) * | 2019-01-21 | 2023-03-24 | オークマ株式会社 | Lathe workpiece pressing device |
-
1991
- 1991-10-16 JP JP9322491U patent/JP2533680Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2533680Y2 (en) | 1997-04-23 |
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