JPH04193442A - Machine tool - Google Patents
Machine toolInfo
- Publication number
- JPH04193442A JPH04193442A JP32492790A JP32492790A JPH04193442A JP H04193442 A JPH04193442 A JP H04193442A JP 32492790 A JP32492790 A JP 32492790A JP 32492790 A JP32492790 A JP 32492790A JP H04193442 A JPH04193442 A JP H04193442A
- Authority
- JP
- Japan
- Prior art keywords
- mounting base
- headstock
- unit
- replacement unit
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 abstract description 22
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- 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
- B23Q37/00—Metal-working machines, or constructional combinations thereof, built-up from units designed so that at least some of the units can form parts of different machines or combinations; Units therefor in so far as the feature of interchangeability is important
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Multi-Process Working Machines And Systems (AREA)
- Turning (AREA)
- Machine Tool Units (AREA)
Abstract
Description
【発明の詳細な説明】
イ 産業上の利用分野
この発明は、旋盤また研削盤等の工作機械に係り、詳し
くは、主軸台、刃物台、心神台、送り軸機構におけるユ
ニット交換性能を改良するための技術に関するものであ
る。[Detailed Description of the Invention] A. Field of Industrial Use This invention relates to machine tools such as lathes and grinders, and more specifically, improves the unit exchange performance of the headstock, tool rest, center rest, and feed shaft mechanism. It is related to the technology for
口 従来の技術
例えば、ＮＣ旋盤においては、第５図に示すように、フ
レーム１上に主軸台２、刃物台３、心神台４、及び送り
軸機構５が設けられている。従来の主軸台２はチャック
６を支持する主軸７、及びその主軸７を駆動するブー９
８等を装着ベース９に組付けて構成されている。刃物台
３はバイト１０を支持するタレット１１と、そのタレッ
ト１１を駆動するモータ１２と、動力伝達機構１３とを
装着ベース１４に組付けて構成されている。心神台４は
心神１５を支持する芯押軸１６と、その芯押軸１６を駆
動するモータ１７とを装着ベース１８に組付けて構成さ
れている。また、前記送り軸機構５は送り軸１つ、駆動
装置２０、軸受２１、及びナツト部材２２から構成され
、ナツト部材２２をサドル２３に結合して、刃物台３を
主軸７に沿って送るようになっている。2. Description of the Related Art For example, in an NC lathe, as shown in FIG. 5, a headstock 2, a tool rest 3, a center rest 4, and a feed shaft mechanism 5 are provided on a frame 1. The conventional headstock 2 includes a main shaft 7 that supports a chuck 6, and a boot 9 that drives the main shaft 7.
8 etc. are assembled to a mounting base 9. The tool rest 3 is constructed by assembling a turret 11 that supports a cutting tool 10, a motor 12 that drives the turret 11, and a power transmission mechanism 13 on a mounting base 14. The Shinshin stand 4 is constructed by assembling a tailstock shaft 16 for supporting the Shinshin 15 and a motor 17 for driving the tailstock shaft 16 on a mounting base 18. The feed shaft mechanism 5 is composed of one feed shaft, a drive device 20, a bearing 21, and a nut member 22, and the nut member 22 is coupled to a saddle 23 to feed the tool rest 3 along the main shaft 7. It has become.
ハ 発明が解決しようとする課題
ところが、従来の工作機械によると、主軸台２、刃物台
３、心神台４、送り軸機構５のいずれの機構においても
、各構成部品がそれぞれ別個に芯出しして組み付けられ
ているため、故障時における分解及び組付けに相当の工
数を必要とし、特に、組付けに際しては各部品をそれぞ
れ芯出しする面倒もあり、長期間にわたって工作機械の
稼働を停止しなければならないという問題点があった。C. Problem to be Solved by the Invention However, according to conventional machine tools, each component of the headstock 2, tool rest 3, center rest 4, and feed shaft mechanism 5 is centered separately. Because the machine tool is assembled in a single frame, it requires a considerable amount of man-hours to disassemble and reassemble it in the event of a failure.In particular, it is a hassle to center each part individually during assembly, and the machine tool has to be stopped for a long period of time. There was a problem that it had to be done.
また、構成部品数が多いので組付は誤差が発生しやすく
、加えて、修理技術にも差があるため、修理後の品質に
バラツキが出やすく、再修理を余儀なくされることもあ
った。In addition, since there are a large number of component parts, assembly errors are likely to occur, and in addition, there are differences in repair techniques, so the quality after repair tends to vary, sometimes requiring re-repair.
そこで、この発明の課題は、複数の部品をユニット化し
て簡単かつ正確に分解及び組付けてき、もって、故障時
の稼働停止時間を大幅に短縮できる工作機械を提供する
ことにある。SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a machine tool that can unitize a plurality of parts and easily and accurately disassemble and assemble them, thereby significantly shortening the downtime in the event of a failure.
二 課題を解決するための手段
上記課題を解決するために、本発明の工作機械において
は、ワーク係合要素を支持する例えば主軸台、刃物台、
心神台等といった支持部材と、その支持部材を駆動する
駆動手段と、支持部材を装着ベースに対し芯出しする芯
出し部材とを一体に組付けて交換ユニットを構成し、そ
の交換ユニットを結合手段により装着ベースに対し主軸
と略平行な方向に取外し可能に装着するという手段が採
られている。2. Means for Solving the Problems In order to solve the above problems, the machine tool of the present invention has a main spindle stock, a tool rest,
A replacement unit is constructed by assembling a support member such as a Shinshindai, a driving means for driving the support member, and a centering member for centering the support member with respect to a mounting base, and the replacement unit is connected to a connecting means. Therefore, a method is adopted in which the device is removably mounted on the mounting base in a direction substantially parallel to the main axis.
また、本発明の工作機械においては、送り軸に係合する
係合部材、及びその係合部材を装着ベースに対し芯出し
する芯出し部材を一体に組付けて交換ユニットを構成し
、その交換ユニットを結合手段によって装着ベースに対
し送り軸の軸線方向に取外し可能に装着するという手段
が採られている。Furthermore, in the machine tool of the present invention, an exchange unit is constructed by integrally assembling an engagement member that engages with the feed shaft and a centering member that centers the engagement member with respect to a mounting base, and the exchange The unit is removably mounted to the mounting base in the axial direction of the feed shaft by means of coupling means.
ホ 作用
本発明の工作機械によれば、ワーク係合要素を支持する
機構、例えば主軸台、刃物台、心神台等に故障が発生し
た場合、各機構の交換二ニットが結合手段を外して装着
ベースから分解され、これにかえて予備の交換ユニット
が装着ベースに組付けられて結合手段により固定される
。交換ユニットには芯出し部材が設けられているので５
組付は時には交換ユニットを主軸と略平行に移動するだ
けで、交換ユニットが装着ベースに対し簡単かつ正確に
芯出しされる。したがって、交換ユニットをわずかな工
数で迅速に分解及び組付けでき、故障時の稼働停止時間
が大幅に短縮される。E. Function: According to the machine tool of the present invention, when a failure occurs in the mechanism that supports the workpiece engaging element, such as the headstock, the turret, and the turret, the replacement unit of each mechanism is installed by removing the coupling means. The spare replacement unit is disassembled from the base, and the spare replacement unit is assembled to the mounting base and fixed by the coupling means. Since the replacement unit is equipped with a centering member,
When assembling, sometimes the replacement unit is simply and accurately centered with respect to the mounting base by simply moving the replacement unit approximately parallel to the main shaft. Therefore, the replacement unit can be quickly disassembled and assembled with a small number of man-hours, and the downtime in the event of a failure is greatly reduced.
また、本発明の工作機械によれば、送り軸機構に故障が
発生した場合も、その交換ユニットを前述したと同じよ
うに分解及び組み付けることによって同様の作用が得ら
れる。Further, according to the machine tool of the present invention, even if a failure occurs in the feed shaft mechanism, the same effect can be obtained by disassembling and assembling the replacement unit in the same manner as described above.
へ 実施例
以下、この発明をＮＣ旋盤に具体化した一実施例を第１
図〜第４図に基づいて説明する。EXAMPLE Hereinafter, a first example will be described in which this invention is embodied in an NC lathe.
This will be explained based on FIGS.
第１図はＮＣ旋盤の主軸台を示す断面図、第２図はその
刃物台を示す断面図、第３図はその心神台を示す断面図
、第４図はその送り軸機構を示す断面図である。なお、
各図面において第５図と同一の符号は従来と同一または
相当する構成部分を示すものである。Figure 1 is a sectional view showing the headstock of the NC lathe, Figure 2 is a sectional view showing the turret, Figure 3 is a sectional view showing the shin rest, and Figure 4 is a sectional view showing the feed shaft mechanism. It is. In addition,
In each drawing, the same reference numerals as in FIG. 5 indicate the same or corresponding components as in the prior art.
この実施例のＮＣ旋盤においても、従来と同様、フレー
ム１上に主軸台２、刃物台３、心神台４からなるワーク
係合要素支持機構と、送り軸機構５とが設けられている
。In the NC lathe of this embodiment as well, a workpiece engaging element support mechanism consisting of a headstock 2, a tool rest 3, and a center rest 4, and a feed shaft mechanism 5 are provided on the frame 1, as in the prior art.
本実施例の主軸台２は、第１図に示すように、装着ベー
ス９と主軸台交換ユニット２５とから構成されている。The headstock 2 of this embodiment is composed of a mounting base 9 and a headstock exchange unit 25, as shown in FIG.
主軸台交換ユニット２５には、ワーク係合要素としての
チャック６を支持する支持部材としての主軸７と、その
主軸７を駆動する駆動手段としてのプーリ８及びフライ
ホイール２６と、主軸７を装着ベース９に芯出しする芯
出し部材２７と、芯出し部材２７の中心で主軸７を支持
する軸受２８とが一体に組付けられている。The headstock exchange unit 25 includes a main shaft 7 as a support member that supports a chuck 6 as a workpiece engaging element, a pulley 8 and a flywheel 26 as driving means for driving the main shaft 7, and a mounting base on which the main shaft 7 is mounted. A centering member 27 for centering the centering member 9 and a bearing 28 for supporting the main shaft 7 at the center of the centering member 27 are integrally assembled.
前記芯出し部材２７及び装着ベース９にはテーパ部２９
が形成されている。芯出し部材２７は前記テーパ部２９
を介して装着ベース９に芯出しされるとともに、位置決
めビン３０により装着ベース９に対し周方向に位置決め
されている。そして、主軸台交換ユニット２５は結合手
段としてのボルト３２により装着ベース９に結合され、
主軸７の軸線に沿って刃物台３側へ取外し可能に構成さ
れている。なお、プーリ８及びフライホイール２６は芯
出し部材２７よりも小径に形成されている。また、装着
ベース９はボルト３３を介してフレーム１に固定されて
いる。The centering member 27 and the mounting base 9 have a tapered portion 29.
is formed. The centering member 27 is connected to the tapered portion 29
It is centered on the mounting base 9 via the mounting base 9, and is positioned in the circumferential direction with respect to the mounting base 9 by the positioning pin 30. The headstock exchange unit 25 is coupled to the mounting base 9 by bolts 32 as coupling means,
It is configured to be removable along the axis of the main shaft 7 toward the tool rest 3 side. Note that the pulley 8 and the flywheel 26 are formed to have a smaller diameter than the centering member 27. Furthermore, the mounting base 9 is fixed to the frame 1 via bolts 33.
前記刃物台３は、第２図に示すように、装着ベース１４
と刃物台交換ユニット３５とから構成されている。刃物
台交換ユニット３５には、ワーク係合要素としてのバイ
ト１０を支持する支持部材としてのタレット１１と、そ
のタレット１１を駆動する駆動手段としてのモータ１２
及び動力伝達機構１３と、タレット１１を装着ベース１
４に芯出しする芯出し部材３６と、スラスト軸受３７と
が一体に組付けられている。The tool rest 3 is mounted on a mounting base 14 as shown in FIG.
and a tool post exchange unit 35. The tool post exchange unit 35 includes a turret 11 as a support member that supports the cutting tool 10 as a work engagement element, and a motor 12 as a driving means for driving the turret 11.
The power transmission mechanism 13 and the turret 11 are attached to the base 1.
A centering member 36 and a thrust bearing 37 are integrally assembled.
前記芯出し部材３６はテーパ部３８を介して装着ベース
１４に芯出しされ、かつ、位置決めビン３９によって装
着ベース１４に位置決めされている。そして、刃物台交
換ユニット３５は結合手段としてのボルト４１により装
着ベース１４に結合され、主軸７と略平行な軸線に沿っ
て主軸７側へ取外し可能に構成されている。なお、装着
ベース１４はボルト４２により中台４３に固定され、そ
の中台４３はサドル２３に主軸７と直交する方向へ移動
可能に支持されている前記心神台４は、第３図に示すよ
うに、装着ベース１８と心神台交換ユニット４６とから
構成されている。心神台交換ユニット４６には、ワーク
係合要素としての心神１５を支持する支持部材としての
芯押軸１６と、その芯押軸１６を駆動する駆動手段とし
てのモータ１７と、芯押軸１６を装着ベース１８に芯出
しする芯出し部材４７とが一体に組付けられている。前
記芯出し部材４７はテーパ部４８を介して装着ベース１
８に芯出しされるとともに、位置決めビン４９によって
装着ベース１８に位置決めされている。そして、心神台
交換ユニット４６は結合手段としてのボルト５１により
装着ベース１８に結合され、主軸７と略平行な軸線に沿
って刃物台３側へ取外し可能に構成されている。The centering member 36 is centered on the mounting base 14 via the tapered portion 38 and is positioned on the mounting base 14 by a positioning pin 39. The tool post exchange unit 35 is connected to the mounting base 14 by a bolt 41 as a connecting means, and is configured to be detachable toward the main shaft 7 along an axis substantially parallel to the main shaft 7. The mounting base 14 is fixed to a middle stand 43 by a bolt 42, and the middle stand 43 is supported by the saddle 23 so as to be movable in a direction perpendicular to the main shaft 7. It is composed of a mounting base 18 and a Shinshindai exchange unit 46. The core stock replacement unit 46 includes a tailstock shaft 16 as a support member that supports the core stock 15 as a work engagement element, a motor 17 as a driving means for driving the tailstock shaft 16, and a tailstock shaft 16. A centering member 47 for centering is assembled integrally with the mounting base 18. The centering member 47 is attached to the mounting base 1 via the tapered portion 48.
8 and is positioned on the mounting base 18 by a positioning pin 49. The Shinshin stand replacement unit 46 is connected to the mounting base 18 by a bolt 51 as a connecting means, and is configured to be removable toward the tool rest 3 along an axis substantially parallel to the main shaft 7.
一方、本実施例の送り軸機構５は、第４図に示すように
、主軸７と平行に延びる送り軸１９と、この送り軸１９
をその一端にて駆動する駆動部交換ユニット５４と、送
り軸１９の他端を支持する支持軸受５５と、送り軸１９
に沿って移動される被動部交換ユニット７０とから構成
されていや。前記駆動部交換ユニット５４には、フレー
ム１に突設した装着ベース５７の取付は孔５７ａに挿入
される芯出し部材５８と、その芯出し部材５８の中心に
おいて送り軸１９に係合する係合部材としての軸受５９
と、モータ６０とが一体に組付けられている。前記芯出
し部材５８はテーパ部６１を介して装着ベース５７に芯
出しされ、かつ、位置決めビン６２によって装着ベース
５７に周方向に位置決めされている。そして、駆動部交
換ユニット５４は結合手段としてのボルト６４により装
着ベース５７に結合され、送り軸１９の延長方向に取外
し可能に構成されている。On the other hand, as shown in FIG. 4, the feed shaft mechanism 5 of this embodiment includes a feed shaft 19 extending parallel to the main shaft 7, and a
a drive unit replacement unit 54 that drives the feed shaft 19 at one end; a support bearing 55 that supports the other end of the feed shaft 19;
and a driven part exchange unit 70 that is moved along. The mounting base 57 protruding from the frame 1 is attached to the drive unit replacement unit 54 using a centering member 58 inserted into the hole 57a and an engagement member 58 that engages with the feed shaft 19 at the center of the centering member 58. Bearing 59 as a member
and the motor 60 are assembled together. The centering member 58 is centered on the mounting base 57 via a tapered portion 61 and positioned on the mounting base 57 in the circumferential direction by a positioning pin 62. The drive unit replacement unit 54 is connected to the mounting base 57 by a bolt 64 as a connecting means, and is configured to be removable in the extending direction of the feed shaft 19.
前記支持軸受５５はフレーム１に立設した支持台６６に
ボルト６７により装着され、駆動部交換ユニット５４側
へ取外し可能となっていて、その内部には軸受６８が組
込まれている。前記被動部交換ユニット７０は、刃物台
３のサドル２３に固定した装着ベース６９の取付は孔６
９ａに挿入される芯出し部材７１と、その芯出し部材７
１の中心において送り軸１９に係合する係合部材として
のポールネジナツト７２とを一体に組付けて構成され、
芯出し部材７１はテーパ部７３を介して装着ベース６９
に芯出しされている。そして、被動部交換ユニット７０
は結合手段としてのボルト７４により装着ベース６９に
結合され、駆動部交換ユニット５４及び支持軸受５５と
同一の方向へ取外し可能に構成されている。なお、この
実施例においては、被動部交換ユニット７０の芯出し部
材７１が装着ベース５７の取付は孔５７ａを通過し得る
大きさで、また、支持軸受５５は装着ベース６９の取付
は孔６９ａを通過し得る大きさでそれぞれ形成されてお
り、駆動部交換ユニット５４、被動部交換ユニット７０
及び支持軸受５５を送り軸１９と一体に装着ベース５７
．６９及び支持台６６に対し分解及び組付けできるよう
に構成されている。The support bearing 55 is attached to a support stand 66 erected on the frame 1 with bolts 67, and can be removed to the drive unit replacement unit 54 side, and a bearing 68 is installed inside the support bearing 55. In the driven part exchange unit 70, a mounting base 69 fixed to the saddle 23 of the tool rest 3 is mounted through the hole 6.
The centering member 71 inserted into the centering member 9a and the centering member 7
1 and a pole screw nut 72 as an engaging member that engages with the feed shaft 19 at the center of the feed shaft 19.
The centering member 71 is attached to the mounting base 69 via the tapered portion 73.
It is centered on. And the driven part replacement unit 70
is connected to the mounting base 69 by a bolt 74 as a connecting means, and is configured to be removable in the same direction as the drive unit replacement unit 54 and the support bearing 55. In this embodiment, the centering member 71 of the driven part replacement unit 70 is large enough to pass through the hole 57a when mounting the mounting base 57, and the support bearing 55 is large enough to pass through the hole 69a when mounting the mounting base 69. The driving part replacement unit 54 and the driven part replacement unit 70 are each formed in a size that allows them to pass through.
And the support bearing 55 is integrated with the feed shaft 19 on a mounting base 57.
．． 69 and support stand 66 so that it can be disassembled and assembled.
次に、上記のように構成したこの実施例の工作機械の作
用について説明する。Next, the operation of the machine tool of this embodiment configured as described above will be explained.
主軸台２、刃物台３、芯押台４に故障が発生した場合、
各交換ユニット２５，３５．４６はそれぞれ同様の手順
で分解及び組付けられる。If a failure occurs in the headstock 2, turret 3, or tailstock 4,
Each replacement unit 25, 35, 46 is disassembled and assembled using the same procedure.
主軸台２に故障が発生した場合には、まず、ボルト３２
を外して主軸台交換ユニット２５が装着ベース９から刃
物台３側へ分解される。次いで、予備の主軸台交換ユニ
ット２５が装着ベース９に挿入され、その芯出し部材２
７が装着ベース９に対しテーパ部２９を介して芯出しさ
れるとともに、位置決めビン３０により位置決めされ、
かつ、ボルト３２により固定される。If a failure occurs in the headstock 2, first
is removed, and the headstock exchange unit 25 is disassembled from the mounting base 9 to the tool rest 3 side. Next, the spare headstock exchange unit 25 is inserted into the mounting base 9, and its centering member 2 is inserted into the mounting base 9.
7 is centered with respect to the mounting base 9 via the tapered part 29 and positioned by the positioning pin 30,
Moreover, it is fixed with bolts 32.
こうすれば、主軸台交換ユニット２５を装着ベース９に
挿入するするだけの簡単な作業で、主軸７を正確に芯出
しできる。したがって、主軸台交換ユニット２５をわず
かな工数で迅速に交換でき、故障時におけるＮＣ旋盤の
稼働停止時間を大幅に短縮できる。また、予備の主軸台
交換ユニット２５を用意しておけば、故障品を製造工場
に持込んで入念に修理できるばかりでなく、同一機種の
他機に互換使用できるという利点もある。なお、刃物台
３及び芯押台４においても、主軸台２と同様にして刃物
台交換ユニット３５及び芯押台交換ユニット４６を簡単
かつ迅速に交換できる。In this way, the spindle 7 can be accurately centered by simply inserting the headstock exchange unit 25 into the mounting base 9. Therefore, the headstock exchange unit 25 can be quickly replaced with a small number of man-hours, and the time during which the NC lathe is stopped in the event of a failure can be significantly reduced. Further, if a spare headstock replacement unit 25 is prepared, not only can a defective product be brought to a manufacturing factory for careful repair, but also it has the advantage that it can be used interchangeably with other machines of the same model. Note that in the tool rest 3 and the tailstock 4 as well, the turret replacement unit 35 and the tailstock replacement unit 46 can be easily and quickly replaced in the same manner as in the headstock 2.
一方、送り軸機構５に故障が発生した場合には、ボルト
６４，７４．６７を外して、駆動部交換ユニット５４、
被動部交換ユニット７０及び支持軸受５５が送り軸１９
と一体に装着ベース５７．６９及び支持台６６から分解
される。On the other hand, if a failure occurs in the feed shaft mechanism 5, remove the bolts 64, 74, 67 and replace the drive unit 54,
The driven part exchange unit 70 and the support bearing 55 are connected to the feed shaft 19
It is disassembled from the mounting base 57, 69 and the support base 66 as one piece.
そして、予備の送り軸機構５が組み付けられるが、この
とき、駆動部交換ユニット５４は芯出し部材５８によっ
て装着ベース５７に、また、被動部交換ユニット７０は
芯出し部材７１によって装着ベース６９にそれぞれ正確
に芯出し及び位置決めされたのち、ボルト６４．７４に
より固定される。したがって、この場合も、送り軸機構
５をわずかな工数で正確かつ迅速に交換できる。なお、
送り軸機構５の全体を交換する必要がない場合は、駆動
部交換ユニット５４、被動部交換ユニット７０の双方ま
たは一方のみを交換してもよい。Then, the spare feed shaft mechanism 5 is assembled. At this time, the drive part replacement unit 54 is attached to the mounting base 57 by the centering member 58, and the driven part replacement unit 70 is attached to the mounting base 69 by the centering member 71. After accurate centering and positioning, it is fixed with bolts 64 and 74. Therefore, in this case as well, the feed shaft mechanism 5 can be replaced accurately and quickly with a small number of man-hours. In addition,
If it is not necessary to replace the entire feed shaft mechanism 5, only one or both of the drive section replacement unit 54 and the driven section replacement unit 70 may be replaced.
この発明は上記実施例のＮＣ旋盤のみに限定されるもの
ではなく、研削盤に応用して具体化することもでき、ま
た、各部の形状並びに構成を本発明の趣旨を逸脱しない
範囲で適宜に変更して実施することも可能である。This invention is not limited to the NC lathe of the above embodiment, but can also be applied to a grinding machine, and the shape and structure of each part can be changed as appropriate without departing from the spirit of the invention. It is also possible to implement with modifications.
ト 発明の効果
以上に詳述したように、請求項１の発明の工作機械によ
れば、支持部材、駆動手段及び芯出し部材を一体に組付
けて交換ユニットが構成されているので、ワーク係合要
素を支持する機構に故障が発生した場合、その交換ユニ
ットをわずかな工数で正確かつ迅速に分解及び組付けで
きて、工作機械の稼働停止時間を大幅に短縮できるとい
う優れた効果を奏する。G. Effects of the Invention As described in detail above, according to the machine tool of the invention of claim 1, the support member, the driving means, and the centering member are assembled together to form the replaceable unit, so that there is no need to worry about workpieces. When a failure occurs in the mechanism that supports the mating element, the replacement unit can be disassembled and assembled accurately and quickly with a small number of man-hours, which has the excellent effect of significantly shortening the downtime of the machine tool.
請求項２の発明の工作機械によれば、送り軸機構に故障
が発生した場合に、前記と同様、交換ユニットを正確か
つ迅速に分解及び組付けできるという効果がある。According to the machine tool of the second aspect of the invention, when a failure occurs in the feed shaft mechanism, the replacement unit can be disassembled and assembled accurately and quickly, as described above.
第１図は本発明の一実施例によるＮＣ旋盤の主軸台を示
す断面図、第２図はその刃物台を示す断面図、第３図は
その芯押台を示す断面図、第４図はその送り軸機構を示
す断面図、第５図は従来の工作機械の全体を示す一部破
断圧面図である。
１・・フレーム、２・・主軸台、３・・刃物台、４・・
芯押台、５・・送り軸機構、６・・チャック、７・・主
軸、８・・プーリ、９，１４．１８，５７．６９・・装
着ベース、１０・・バイト、１１・・タレット、１２，
１７．６０・・モータ、１５・・芯押、１６・・心神軸
、１９・・送り軸、２５・・主軸台交換ユニット、２７
，３６，４７，５８．７１・・芯出し部材、２９，３８
．４８，６１．７３・・テーバ部、３０．３９．４９．
６２・・位置決めビン、３５・・刃物台交換ユニット、
４６・・芯押台交換ユニット、５４・・駆動部交換ユニ
ット、５９・・軸受、７０・・被動部交換ユニット、７
２・・ポールネジナツト。
特許出願人 株式会社 大隈鐵工所
ｒ−７１゛−FIG. 1 is a cross-sectional view showing the headstock of an NC lathe according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing the tool rest, FIG. 3 is a cross-sectional view showing the tailstock, and FIG. FIG. 5 is a sectional view showing the feed shaft mechanism, and a partially broken pressure surface view showing the entire conventional machine tool. 1... Frame, 2... Headstock, 3... Turret, 4...
Tailstock, 5...Feed shaft mechanism, 6...Chuck, 7...Main shaft, 8...Pulley, 9, 14.18, 57.69...Mounting base, 10...Bite, 11...Turret, 12,
17.60... Motor, 15... Tailstock, 16... Shinshin axis, 19... Feed axis, 25... Headstock exchange unit, 27
, 36, 47, 58. 71... Centering member, 29, 38
．． 48,61.73...Taber part, 30.39.49.
62...Positioning bin, 35...Turret replacement unit,
46... Tailstock replacement unit, 54... Drive part replacement unit, 59... Bearing, 70... Driven part replacement unit, 7
2. Pole screw nut. Patent applicant: Okuma Iron Works Co., Ltd. r-71゛-
Claims (1)
材を駆動する駆動手段と、支持部材を装着ベースに対し
芯出しする芯出し部材とを一体に組付けて交換ユニット
を構成し、前記装着ベースに対し交換ユニットを結合手
段により主軸と略平行な方向に取外し可能に装着したこ
とを特徴とする工作機械。 ２ 送り軸に係合する係合部材と、前記係合部材を装着
ベースに対し芯出しする芯出し部材とを一体に組付けて
交換ユニットを構成し、前記装着ベースに対し交換ユニ
ットを結合手段により送り軸の軸線方向に取外し可能に
装着したことを特徴とする工作機械。[Scope of Claims] 1. A replacement unit is provided by integrally assembling a support member that supports a work engagement element, a drive means that drives the support member, and a centering member that centers the support member with respect to a mounting base. 1. A machine tool comprising: a replaceable unit removably mounted on the mounting base in a direction substantially parallel to the main shaft by means of a coupling means. 2. A replacement unit is constructed by integrally assembling an engaging member that engages with the feed shaft and a centering member that centers the engaging member with respect to the mounting base, and means for coupling the replacement unit to the mounting base. A machine tool characterized by being removably mounted in the axial direction of a feed shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2324927A JP3072351B2 (en) | 1990-11-26 | 1990-11-26 | Machine Tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2324927A JP3072351B2 (en) | 1990-11-26 | 1990-11-26 | Machine Tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04193442A true JPH04193442A (en) | 1992-07-13 |
| JP3072351B2 JP3072351B2 (en) | 2000-07-31 |
Family
ID=18171168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2324927A Expired - Fee Related JP3072351B2 (en) | 1990-11-26 | 1990-11-26 | Machine Tools |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3072351B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60186142U (en) * | 1984-05-18 | 1985-12-10 | セイコー精機株式会社 | Fixed structure of headstock in machine tools |
-
1990
- 1990-11-26 JP JP2324927A patent/JP3072351B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60186142U (en) * | 1984-05-18 | 1985-12-10 | セイコー精機株式会社 | Fixed structure of headstock in machine tools |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3072351B2 (en) | 2000-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4179775B2 (en) | How to replace the spindle of a machine tool | |
| JP2603892B2 (en) | Positioning fixture | |
| EP1958718B1 (en) | Spindle device of machine tool | |
| CN109048366B (en) | Set of processing equipment and processing method for crankshaft | |
| JP2010030011A (en) | Grinding machine and method of replacing extension spindle therefor | |
| CN104858682A (en) | Double-arm self-adapting fixture used for controlling machining deformation of blade | |
| CN105195906A (en) | Automatic laser welding tool | |
| CN113894307B (en) | Self-centering floating driving device | |
| WO2019202779A1 (en) | Machining tool | |
| CN104308438A (en) | Welding jig for covering roller assembly connection block of hydraulic torque converter and process thereof | |
| US20100166519A1 (en) | Clamping method for workpieces used for the production of compressor or turbine wheels | |
| CN102632250B (en) | Deep-hole cutter-lifting lafor automatically clamping work-piece without shutdown | |
| JP2007001010A (en) | Spindle device of machine tool and spindle replacement method | |
| JPH04193442A (en) | Machine tool | |
| JP4480444B2 (en) | Machine tool spindle equipment | |
| CN211388274U (en) | Honing tool for circumferential hole-opening workpiece | |
| US5539966A (en) | Machining head for machining boards | |
| JP3837406B2 (en) | Molded pulley assembly for belt cutting machine | |
| JPH0435281B2 (en) | ||
| JP2007276087A (en) | Spindle device | |
| JP2003080402A (en) | Machine tool | |
| JP2840252B2 (en) | Multi-tasking dedicated machine | |
| CN221232002U (en) | Follower rest and long shaft machining equipment | |
| CN211277394U (en) | Four-axis quick switching device | |
| JPH03142142A (en) | Spindle structure of machine tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |