JPS6257442B2 - - Google Patents
Info
- Publication number
- JPS6257442B2 JPS6257442B2 JP2765383A JP2765383A JPS6257442B2 JP S6257442 B2 JPS6257442 B2 JP S6257442B2 JP 2765383 A JP2765383 A JP 2765383A JP 2765383 A JP2765383 A JP 2765383A JP S6257442 B2 JPS6257442 B2 JP S6257442B2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- claw
- claw body
- chuck
- plate member
- 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
- 210000000078 claw Anatomy 0.000 claims description 49
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000011800 void material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000669 Chrome steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/1627—Details of the jaws
- B23B31/16275—Form of the jaws
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Description
【発明の詳細な説明】
本発明は、工作機械のチヤツクに用いる爪とそ
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a jaw used in a chuck of a machine tool and a method for manufacturing the same.
例えば旋盤のように回転主軸端を取付けて使用
する工作機械のチヤツクは、そのチヤツク本体の
正面部において、油圧又は空圧による自動、又は
手動により案内溝に沿つて移動する爪受け台に爪
体をボルトで結合して被加工物を把握できるよう
になつている。この場合、被加工物を掴む部分
を、その寸法に合わせて削つて成形できるように
したのが生爪である。ところが、前記の生爪は機
械構造用炭素鋼から成り、又通常の硬爪はクロー
ム鋼を焼入れして成るものであるが、その何れに
おいてもボルト通し部を除くと全体がムク
（Solid）であるから、これをチヤツク本体に取付
けるとチヤツク全体の重量がかなり増大する結
果、バランスが悪くなつて回転効率が落ちる欠点
がある。 For example, in the chuck of a machine tool such as a lathe, which is used with the rotating spindle end attached, the chuck is mounted on the front part of the chuck main body with a pawl rest that moves along a guide groove automatically using hydraulic or pneumatic pressure, or manually. are connected with bolts so that the workpiece can be grasped. In this case, a raw jaw is one in which the part that grips the workpiece can be shaped by cutting it to match the dimensions of the workpiece. However, although the above-mentioned raw jaws are made of carbon steel for mechanical structures, and ordinary hard jaws are made of hardened chrome steel, in both cases, the entire part is solid except for the bolt passages. Therefore, if this is attached to the chuck body, the weight of the chuck as a whole increases considerably, resulting in poor balance and lower rotational efficiency.
一方、回転主軸端に取付けるチヤツクは、計量
であればある程、当該チヤツクの回転におけるバ
ランスが良好となるので、高速回転に適してい
る。そこで、チヤツク本体に結合する爪を少しで
も軽量化することが望ましい。そして爪を軽くす
ると、チヤツク本体への取付け、取外し等の操作
がし易いと共に作業上の取扱いが便利になる。 On the other hand, the chuck attached to the end of the rotating main shaft is suitable for high-speed rotation because the more measured the chuck is, the better the balance will be in the rotation of the chuck. Therefore, it is desirable to reduce the weight of the claw connected to the chuck body as much as possible. By making the claws lighter, operations such as attaching and detaching the chuck to the chuck body become easier and handling becomes more convenient.
本発明は、上記の点に鑑みて提供するもので、
その発明の１つは、工作機械用チヤツク爪におい
て、断面溝形を成す爪体の溝形開口部に板部材を
閉蓋固着して空虚部を形成した爪本体と、前記爪
本体底部の長手方向に設けた鋸歯部と、前記空虚
部に対峙する鋸歯部の底部から空虚部に向けた高
さ方向に設けたボルト通し孔とからなるものであ
る。 The present invention is provided in view of the above points,
One of the inventions is a chuck pawl for a machine tool, which includes a chuck body in which a plate member is closed and fixed to a groove-shaped opening of the pawl body forming a groove-shaped cross section to form a hollow portion, and a chuck body with a longitudinal axis at the bottom of the chuck body. It consists of a sawtooth section provided in the direction, and a bolt through hole provided in the height direction from the bottom of the sawtooth section facing the hollow section toward the hollow section.
また発明のもう１つは、工作機械用チヤツク爪
の製造方法において、断面溝形を成す長尺の形鋼
を一定の幅で切断加工して爪体を成形し、前記爪
体の溝形開口部を板部材で閉蓋固着して爪本体と
し、前記爪本体は前記板部材と前記溝形との間に
空虚部を形成し、前記空虚部に対峙する底部の長
手方向に沿つて鋸歯部を成形し、且つ前記鋸歯部
の底部から空虚部に向けた高さ方向にボルト通し
孔を貫通させるものである。 Another aspect of the invention is a method for manufacturing a chuck pawl for a machine tool, in which a long section steel having a groove shape in cross section is cut into a constant width to form a pawl body, and a groove-shaped opening in the pawl body is formed. The part is closed and fixed with a plate member to form a claw body, and the claw body has a hollow part formed between the plate member and the groove, and a sawtooth part along the longitudinal direction of the bottom facing the hollow part. , and a bolt through hole is formed in the height direction from the bottom of the sawtooth section toward the hollow section.
以下本発明の実施例を図面を以て説明すると、
１はチヤツク本体、２はチヤツク本体の正面に形
成した案内溝、３は案内溝に収容され、且つ当該
溝に沿つて移動する爪受け台、４は爪本体であつ
て、断面溝形を成す爪体５の溝形開口部５１に板
部材６を接合して閉蓋すると共に、その接合部５
２を溶接等で固着してある。７は爪体５の溝形凹
部と板部材６とによつて爪本体４の胴部４１に形
成した空虚部、８は爪本体の底部の長手方向に沿
つて両側２列に成形した鋸歯部を示し、当該鋸歯
部に対峙する鋸歯部９が爪受け台３の表面に設け
られている。１０は前記の空虚部７に対峙する底
部鋸歯部の両側２列の間から高さＨ方向に向かつ
て貫通したボルト通し孔であつて、板部材６には
少なくともボルト頭部が自由に通過できる大径の
孔を設けるものとする。１１は爪本体の掴持部
位、１２はボルトを示す。 Examples of the present invention will be described below with reference to the drawings.
1 is a chuck main body, 2 is a guide groove formed on the front surface of the chuck main body, 3 is a claw holder that is accommodated in the guide groove and moves along the groove, and 4 is a claw main body, which has a groove shape in cross section. A plate member 6 is joined to the groove-shaped opening 5 1 of the claw body 5 to close the lid, and the joined part 5
2 is fixed by welding or the like. Reference numeral 7 denotes a void formed in the body 41 of the claw body 4 by the groove-shaped recess of the claw body 5 and the plate member 6 , and 8 indicates sawteeth formed in two rows on both sides along the longitudinal direction of the bottom of the claw body. A sawtooth portion 9 facing the sawtooth portion is provided on the surface of the claw holder 3. Reference numeral 10 denotes a bolt through hole passing through in the height H direction from between the two rows on both sides of the bottom sawtooth portion facing the hollow portion 7, through which at least the bolt head can freely pass through the plate member 6. A large diameter hole shall be provided. Reference numeral 11 indicates a gripping portion of the claw body, and reference numeral 12 indicates a bolt.
前記の爪本体４を形成するには第１〜６図の場
合、引抜き成形法により上部に開口部５１を形成
した断面略Ｕ字形の凹溝を成す長尺の形鋼を製造
し、これを一定の幅Ｗで切断加工して爪体５を成
形し、前記爪体の溝形開口部５１の内側両面を蟻
継溝５２に成形すると共に段付き突起５３を設
け、その蟻継溝５２に爪体５と同材質の板部材６
を一定幅W′で切断し、且つ前記蟻継溝に合致す
る突部を形成して嵌合し、バツト溶接その他適宜
の溶接によつて固着し、さらに、爪本体の底部か
ら空虚部７を通つて上部の板部材６に到達する高
さ方向にボルト通し孔１０を貫通させたものを示
す。 In order to form the claw main body 4, in the case of FIGS. 1 to 6, a long shaped steel having a groove having an approximately U-shaped cross section with an opening 51 formed in the upper part is produced by pultrusion. is cut to a certain width W to form the claw body 5, and both inner surfaces of the groove-shaped opening 51 of the claw body are formed into a dovetail groove 52 , and a stepped protrusion 53 is provided. A plate member 6 made of the same material as the claw body 5 is installed in the joint groove 5 2 .
is cut to a certain width W', and a protrusion that matches the dovetail groove is formed and fitted, and is fixed by butt welding or other appropriate welding. A bolt through hole 10 is shown extending in the height direction to reach the upper plate member 6.
また、第７〜９図の場合は、爪体５の開口部５
１を横側方部に形成して断面略コ字形に成したも
のであつて、その開口縁部５1′に蟻継溝５２を有
する突起５３を成形し、前記開口部５１を塞ぐた
めの板部材６の両縁辺に前記蟻継溝に合致する突
起６３を成形して蟻継溝５２に嵌合固着し、ボル
ト通し孔１０を爪体５の空虚部７に対峙する底部
から上部に到るコ字形両片部にあけてあるものを
示す。 In addition, in the case of FIGS. 7 to 9, the opening 5 of the claw body 5
A protrusion 53 having a dovetail groove 52 is formed on the opening edge 51 ', and the opening 51 is formed in a substantially U - shaped cross section. Protrusions 63 that match the dovetail grooves are formed on both edges of the plate member 6 for closing, and are fitted and fixed to the dovetail grooves 52 , and the bolt holes 10 are opposed to the hollow portions 7 of the claws 5. It shows the holes in both U-shaped pieces from the bottom to the top.
次に本発明の使用に当たつては、第１０〜１２
図のように掴持部位１１をチヤツク本体１の中心
に向けた爪本体４を、その底部の鋸歯部８を爪受
け台３の鋸歯部９に合わせて位置決めしてからボ
ルト１２を孔１０に通して爪受け台３に取付駒３
１・取付溝３２を介して固定し、又は爪受け台３
にボルト１２を直付けして固定する。チヤツク本
体１側に取付けられた爪本体４は油圧又は空圧に
よる自動若しくは手動式等公知の機構及び操作に
よつて被加工物の把握とその解除を行うものであ
る。 Next, in using the present invention, the 10th to 12th
As shown in the figure, position the claw body 4 with the gripping part 11 facing the center of the chuck body 1 so that the serrations 8 on the bottom are aligned with the serrations 9 of the claw holder 3, and then insert the bolt 12 into the hole 10. Attachment piece 3 to nail holder 3 through
1. Fix via the mounting groove 32 or attach the claw holder 3
Attach the bolt 12 directly to secure it. The claw body 4 attached to the chuck body 1 side grasps and releases the workpiece by a known mechanism and operation, such as an automatic or manual type using hydraulic or pneumatic pressure.
本発明は上記の構成であるから、爪本体４の胴
部に４１に空虚部７が形成され、これによつてそ
の爪本体の重量がムクの爪に比べて相当に軽くな
り、２個ないし４個の爪本体を取付けたチヤツク
の大幅な軽量化が図れる。従つて、高速回転が要
求される、中型・大型の旋盤等において、例えば
毎分4000〜6000回転前後の高速回転において従来
よりも少なくとも30％の回転数が上がると共に、
ムクの爪を取付けたチヤツクより、なお一層の高
速回転が得られる。 Since the present invention has the above-mentioned structure, the hollow part 7 is formed in the body part of the claw body 4 , which makes the weight of the claw body considerably lighter than that of a barbed claw, and two Alternatively, the weight of the chuck to which four claw bodies are attached can be significantly reduced. Therefore, in medium-sized and large-sized lathes that require high-speed rotation, for example, the high-speed rotation of around 4000 to 6000 revolutions per minute is at least 30% higher than that of conventional machines.
Even higher speed rotation can be obtained than a chuck with a solid claw attached.
さらに、爪本体４の空虚部７は、当該爪本体の
掴持部位１１より一定の距離L1だけ離れた後部
位に形成されているから、これを取付けたとき、
チヤツク本体１の中心より外側に位置した個所の
方がその分だけ軽くなつているため、チヤツクが
回転するときのバランスがきわめて良好になり、
特に高速回転に好適である。 Furthermore, since the hollow part 7 of the claw body 4 is formed at a rear part that is a certain distance L1 away from the gripping part 11 of the claw body, when this is attached,
The parts located outside the center of the chuck body 1 are lighter by that much, so the balance when the chuck rotates is extremely good.
Particularly suitable for high speed rotation.
そして、前記の空虚部７は、ムクの材料を刳り
貫いて形成することも可能ではあるが、そうする
と、刳り貫き加工が面倒であると共に、材料コス
トが高くなる欠点がある。その点本発明において
は、引抜き加工等によつて予め凹溝形状を成して
いる長尺形鋼を一定幅Ｗで切断し、その開口部５
１を板部材６で閉蓋固定する構造であるから、空
虚部７の形成がムクからの刳り貫き加工に比べて
はるかに簡単、且つ確実に行え、而も材料コスト
も大幅に低減される。 Although it is possible to form the hollow portion 7 by hollowing out the solid material, this has the disadvantage that the hollowing process is troublesome and the material cost increases. In this regard, in the present invention, a long section steel that has been formed into a groove shape by drawing or the like is cut with a constant width W, and the opening 5
1 is closed and fixed with a plate member 6, the hollow part 7 can be formed much more easily and reliably than by hollowing out a blank, and the material cost is also greatly reduced.
また、爪本体の加工に当たつて、凹溝形状であ
るから、一定幅に切断するのが容易であり、且つ
所定寸法に仕上げ加工するのも幅方向だけでよい
から、生産効率が大幅に向上する。 In addition, when processing the claw body, since it has a concave groove shape, it is easy to cut it to a certain width, and finishing processing to the specified size only needs to be done in the width direction, greatly increasing production efficiency. improves.
そして、空虚部７内も底部側のボルト通し孔部
位に隆起部５５を成形し、また段付き突起５３を
設ける等任意形状が得られる。 Further, an arbitrary shape can be obtained within the hollow part 7, such as by forming a raised part 55 at the bottom side of the bolt passage hole and providing a stepped protrusion 53 .
さらにまた、爪本体４の空虚部７は水平方向に
形成されているからボルト通し孔１０を爪本体４
の高さＨの方向にあける際、底部側からあける
と、その高さ方向の中央部が空洞であることによ
り、ムクの爪にあける孔に比べてその孔あけの精
度が向上する。そして、爪全体が軽量化されたこ
とにより、当該爪のチヤツクへの取付け、取外し
操作その他の作業上の取扱いがきわめて簡単であ
る等の特長がある。 Furthermore, since the hollow part 7 of the claw body 4 is formed in the horizontal direction, the bolt through hole 10 can be inserted into the claw body 4.
When drilling in the direction of the height H of the hole, if the hole is drilled from the bottom side, the center part in the height direction is hollow, so the accuracy of the hole is improved compared to the hole drilled in the claw of a barb. Further, since the claw as a whole is lightweight, the claw can be attached to the chuck, removed from the chuck, and other operations are extremely easy.
第１図は本発明に係る爪の正面図、第２図は平
面図、第３図は第１図の３―３線に沿う断面図、
第４図は爪体を構成する素材の平面図、第５図は
第４図の斜視図、第６図は板部材を構成する素材
の斜視図、第７図は第１図の他の実施例の正面
図、第８図は第７図の爪体の素材を示す正面図、
第９図は第７図の板部材の素材を示す正面図、第
１０図は爪をチヤツク本体に取付けた状態の正面
図、第１１図は第１０図の側面図、第１２図は斜
視図である。
１……チヤツク本体、２……案内溝、３……爪
受け台、４……爪本体、５……爪体、６……板部
材、７……空虚部、８……鋸歯部。
FIG. 1 is a front view of the claw according to the present invention, FIG. 2 is a plan view, and FIG. 3 is a sectional view taken along line 3-3 in FIG.
Fig. 4 is a plan view of the material forming the claw body, Fig. 5 is a perspective view of Fig. 4, Fig. 6 is a perspective view of the material forming the plate member, and Fig. 7 is another embodiment of Fig. 1. A front view of an example, FIG. 8 is a front view showing the material of the claw body of FIG. 7,
Figure 9 is a front view showing the material of the plate member in Figure 7, Figure 10 is a front view of the claw attached to the chuck body, Figure 11 is a side view of Figure 10, and Figure 12 is a perspective view. It is. DESCRIPTION OF SYMBOLS 1... Chuck body, 2... Guide groove, 3... Claw holder, 4... Claw body, 5... Claw body, 6... Plate member, 7... Hollow part, 8... Serrated part.
Claims (1)
閉蓋固着して空虚部を形成した爪本体と、前記爪
本体底部の長手方向に設けた鋸歯部と、前記空虚
部に対峙する鋸歯部の底部から空虚部に向けた高
さ方向に設けたボルト通し孔とからなることを特
徴とする工作機械用チヤツク爪。 ２ 断面溝形を成す長尺の形鋼を一定の幅で切断
加工して爪体を成形し、前記爪体の溝形開口部を
板部材で閉蓋固着して爪本体とし、前記爪本体は
前記板部材と前記溝形との間に空虚部を形成し、
前記空虚部に対峙する底部の長手方向に沿つて鋸
歯部を成形し、且つ前記鋸歯部の底部から空虚部
に向けた高さ方向にボルト通し孔を貫通させるこ
とを特徴とする工作機械用チヤツク爪の製造方
法。[Scope of Claims] 1. A claw body having a groove-shaped cross-sectional shape and a hollow portion formed by fixing a plate member to the groove-shaped opening of the claw body, and a sawtooth portion provided in the longitudinal direction of the bottom of the claw body. A chuck pawl for a machine tool, comprising: a bolt through hole provided in a height direction from the bottom of the sawtooth portion facing the hollow portion toward the hollow portion. 2 A long shaped steel having a groove-shaped cross section is cut to a certain width to form a claw body, the groove-shaped opening of the claw body is closed and fixed with a plate member to form a claw body, and the claw body is forms a void between the plate member and the groove,
A chuck for a machine tool, characterized in that a sawtooth portion is formed along the longitudinal direction of the bottom portion facing the hollow portion, and a bolt through hole is passed through the sawtooth portion in a height direction from the bottom portion toward the hollow portion. How to make nails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2765383A JPS59156602A (en) | 1983-02-23 | 1983-02-23 | Chuck click for machine tool and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2765383A JPS59156602A (en) | 1983-02-23 | 1983-02-23 | Chuck click for machine tool and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59156602A JPS59156602A (en) | 1984-09-05 |
| JPS6257442B2 true JPS6257442B2 (en) | 1987-12-01 |
Family
ID=12226876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2765383A Granted JPS59156602A (en) | 1983-02-23 | 1983-02-23 | Chuck click for machine tool and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59156602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321812C (en) * | 1999-07-23 | 2007-06-20 | 纳幕尔杜邦公司 | Ethylene acid copolymer with enhanced adhesion |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8272646B2 (en) * | 2009-05-28 | 2012-09-25 | Fink Nicholas A | Quick change jaw system for chucks |
-
1983
- 1983-02-23 JP JP2765383A patent/JPS59156602A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321812C (en) * | 1999-07-23 | 2007-06-20 | 纳幕尔杜邦公司 | Ethylene acid copolymer with enhanced adhesion |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59156602A (en) | 1984-09-05 |
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