JP3072351B2 - Machine Tools - Google Patents
Machine ToolsInfo
- Publication number
- JP3072351B2 JP3072351B2 JP2324927A JP32492790A JP3072351B2 JP 3072351 B2 JP3072351 B2 JP 3072351B2 JP 2324927 A JP2324927 A JP 2324927A JP 32492790 A JP32492790 A JP 32492790A JP 3072351 B2 JP3072351 B2 JP 3072351B2
- Authority
- JP
- Japan
- Prior art keywords
- mounting base
- unit
- tailstock
- centering member
- headstock
- 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 - Fee Related
Links
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)
Description
【発明の詳細な説明】 イ 産業上の利用分野 この発明は、旋盤または研削盤等の工作機械に係り、
詳しくは、主軸台、刃物台、心押台、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。The present invention relates to a machine tool such as a lathe or a grinder,
More specifically, the present invention relates to a technique for improving unit exchange performance in a headstock, a tool rest, a tailstock, and a feed shaft mechanism.
ロ 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、心押台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を駆動するプーリ
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。心押台４は心押15を支持
する心押軸16と、その心押軸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19、駆動装置20、軸受21、及びナッ
ト部材22から構成され、ナット部材22をサルド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。(B) Prior art For example, in an NC lathe, a headstock 2, a tool rest 3, a tailstock 4, and a feed shaft mechanism 5 are provided on a frame 1 as shown in FIG. The conventional headstock 2 is configured by assembling a spindle 7 that supports the chuck 6, a pulley 8 that drives the spindle 7, and the like to a mounting base 9. The turret 3 has a turret 11 for supporting a cutting tool 10 and the turret 11
Motor 12 and power transmission mechanism 13
It is configured to be attached to 14. The tailstock 4 is configured by assembling a tailstock shaft 16 that supports the tailstock 15 and a motor 17 that drives the tailstock shaft 16 to a mounting base 18. The feed shaft mechanism 5 includes a feed shaft 19, a driving device 20, a bearing 21, and a nut member 22. The nut member 22 is coupled to a sald 23 so that the tool rest 3 is fed along the main shaft 7. 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、心押台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。また、構成部品数が多いので組付け誤差が発生しや
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。However, according to the conventional machine tool, in any of the headstock 2, the tool rest 3, the tailstock 4, and the feed shaft mechanism 5, each component is separately centered. It requires a considerable amount of man-hours to disassemble and assemble in the event of a failure.In particular, when assembling, it is troublesome to center each component. There was a problem that had to be. In addition, since the number of components is large, an assembly error is likely to occur. In addition, since there is also a difference in repair technology, the quality after repair tends to vary, and it may be necessary to perform repair again.
そこで、この発明の課題は、複数の部品ユニット化し
て簡単かつ正確に分解及び組付けでき、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 It is an object of the present invention to provide a machine tool that can be easily and accurately disassembled and assembled into a plurality of component units, thereby greatly reducing the operation stop time in the event of a failure.
ニ 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支持部材と、支持部材
と同心の芯出し部材とを一体に組付けて交換ユニットを
構成し、前記交換ユニットが装着される装着ベースを設
け、装着ベースと前記芯出し部材とに同心のテーパ部を
設け、前記装着ベースの内側に交換ユニットを挿入し、
結合手段により分解可能に組み付けるという手段が採ら
れている。D. Means for Solving the Problems In order to solve the above problems, in the machine tool of the present invention, a support member for supporting a work engaging element and a centering member concentric with the support member are integrally assembled. Constituting a replacement unit, providing a mounting base on which the replacement unit is mounted, providing a concentric tapered portion on the mounting base and the centering member, inserting the replacement unit inside the mounting base,
Means of assembling such that it can be disassembled by a connecting means is employed.
また、本発明の工作機械においては、送り軸に係合す
る係合部材と、前記係合部材と同心の芯出し部材とを一
体に組付けて交換ユニットを構成し、前記交換ユニット
が装着される装着ベースを設け、装着ベースと前記芯出
し部材とに同心のテーパ部を設け、前記装着ベースに交
換ユニットを挿入し、結合手段により分解可能に組み付
けるという手段が採られている。Further, in the machine tool of the present invention, an exchange member is configured by integrally assembling an engagement member engaging with the feed shaft and a centering member concentric with the engagement member, and the exchange unit is mounted. A mounting base is provided, a concentric taper portion is provided between the mounting base and the centering member, and a replacement unit is inserted into the mounting base and assembled disassembly by a 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、心押台等に故障が発生
した場合、各機構の交換ユ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。この場合、支持部材と芯出し部材とが同心に設けら
れ、芯出し部材と装着ベースとに同芯のテーパ部が設け
られているので、交換ユニットを装着ベースに挿入すれ
ばワーク係合要素の支持部材が装着ベースに対し正確に
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。According to the machine tool of the present invention, when a failure occurs in a mechanism for supporting a work engaging element, for example, a headstock, a tool rest, a tailstock, or the like, the replacement unit of each mechanism detaches the coupling means and mounts the coupling unit. It is disassembled from the base, and instead, a spare replacement unit is assembled to the mounting base and fixed by the coupling means. In this case, the support member and the centering member are provided concentrically, and the centering member and the mounting base are provided with concentric tapered portions. The support member is accurately centered with respect to the mounting base. Therefore, the replacement unit can be quickly disassembled and assembled with a small number of man-hours, and the operation stop time 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 when a failure occurs in the feed shaft mechanism, the same operation can be obtained by disassembling and assembling the replacement unit in the same manner as described above.
ヘ 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。F Example Hereinafter, an example in which the present invention is embodied in an NC lathe will be described as a first example.
A description will be given 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。1 is a sectional view showing a headstock of an NC lathe, FIG. 2 is a sectional view showing its tool post, FIG. 3 is a sectional view showing its tailstock, and FIG. 4 is a sectional view showing its feed shaft mechanism. FIG. In each drawing, the same reference numerals as those in FIG. 5 indicate the same or corresponding components as those in the related 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、心押台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。Also in the NC lathe according to this embodiment, a work engaging element support mechanism including a headstock 2, a tool post 3, and a tailstock 4 and a feed shaft mechanism 5 are provided on a 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。
主軸台交換ユニット25には、ワーク係合要素としてのチ
ェック６を支持する支持部材としての主軸７と、その主
軸７を駆動するプーリ８及びフライホイール26と、主軸
７と同芯の芯出し部材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。As shown in FIG. 1, the headstock 2 of this embodiment includes a mounting base 9 and a headstock exchange unit 25.
The headstock changing unit 25 includes a main shaft 7 as a support member for supporting the check 6 as a work engaging element, a pulley 8 and a flywheel 26 for driving the main shaft 7, and a centering member coaxial with the main shaft 7. 27 and a bearing 28 that supports 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には同芯のテーパ
部29が形成されている。主軸台交換ユニット25は前記テ
ーパ部29を介して装着ベース９の内側に装着されて芯出
しされるとともに、位置決めピン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およびフ
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。Concentric tapered portions 29 are formed on the centering member 27 and the mounting base 9. The headstock exchange unit 25 is mounted inside the mounting base 9 via the tapered portion 29 and is centered, and the mounting base 9 is
Are positioned in the circumferential direction. The headstock exchange unit 25 is coupled to the mounting base 9 by bolts 32 as coupling means, and is configured to be removable toward the tool post 3 along the axis of the spindle 7. The pulley 8 and the flywheel 26 are formed with a smaller diameter than the centering member 27. 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を駆動するモータ12及び動力伝達機構13と、タレッ
ト11と同芯の芯出し部材36と、スラスト軸受37とが一体
に組付けられている。前記芯出し部材36と装着ベース14
とには同芯のテーパ部38が設けられ、刃物台交換ユニッ
ト35はテーパ部38を介して装着ベース14の内側に挿入さ
れて芯出しされ、かつ、位置決めピン39によって装着ベ
ース14に対し周方向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に主軸と直交する方向へ移動可能に支持され
ている。As shown in FIG. 2, the tool rest 3 is provided with a mounting base 14.
And a tool post replacement unit 35. The tool post replacement unit 35 has a tool 10 as a work engaging element.
A turret 11 as a support member for supporting the turret 11, a motor 12 and a power transmission mechanism 13 for driving the turret 11, a centering member 36 coaxial with the turret 11, and a thrust bearing 37 are integrally assembled. . The centering member 36 and the mounting base 14
The tool post exchange unit 35 is inserted into the inside of the mounting base 14 through the taper portion 38 to be centered, and is positioned around the mounting base 14 by the positioning pins 39. It is positioned in the direction. The tool rest changing unit 35 is coupled to the mounting base by bolts 41 as coupling means, and is configured to be detachable to the main shaft 7 along an axis substantially parallel to the main shaft 7. The mounting base 14 is fixed to the middle base 43 with bolts 42, and the middle base 43
Is supported by the saddle 23 so as to be movable in a direction orthogonal to the main axis.
前記心押台４は、第３図に示すように、装着ベース18
と心押台交換ユニット46とから構成されている。心押台
交換ユニット46には、ワーク係合要素としての心押15を
支持する支持部材としての心押軸16と、その心押軸16を
駆動するモータ17と、心押軸16と同心の芯出し部材47と
が一体に組付けられている。前記芯出し部材47と装着ベ
ース18とには同芯のテーパ部48が設けられ、心押台交換
ユニット46はテーパ部48を介して装着ベース18の内側に
挿入されて芯出しされるとともに、位置決めピン49によ
って装着ベース18に対し周方向に位置決めされている。
そして、心押台交換ユニット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 tailstock 4 is, as shown in FIG.
And a tailstock exchange unit 46. The tailstock replacement unit 46 includes a tailstock shaft 16 as a support member for supporting the tailstock 15 as a work engaging element, a motor 17 for driving the tailstock shaft 16, and a concentric shaft with the tailstock shaft 16. The centering member 47 is assembled integrally. The centering member 47 and the mounting base 18 are provided with a concentric taper portion 48, and the tailstock exchange unit 46 is inserted into the mounting base 18 via the taper portion 48 and is centered, The positioning pin 49 positions the mounting base 18 in the circumferential direction.
The tailstock exchange unit 46 is coupled to the mounting base 18 by bolts 51 as coupling 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る。
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の取付け孔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と装着ベース57とには
同芯のテーパ部61が設けられ、駆動部交換ユニット54は
テーパ部61を介して装着ベース57の内側に挿入されて芯
出しされ、かつ、位置決めピン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 the present embodiment includes a feed shaft 19 extending in parallel with the main shaft 7, a drive unit replacing unit 54 for driving the feed shaft 19 at one end thereof, axis
It comprises a support bearing 55 for supporting the other end of the driven member 19 and a driven part replacing unit 70 moved along the feed shaft 19.
The drive unit replacement unit 54 has a centering member 58 inserted into a mounting hole 57a of a mounting base 57 projecting from the frame 1.
And a bearing 60 as an engaging member that engages with the feed shaft 19 at the center of the centering member 58, and a motor 60 are integrally assembled. The centering member 58 and the mounting base 57 are provided with a concentric taper portion 61, and the drive unit replacement unit 54 is inserted into the mounting base 57 via the taper portion 61 to be centered, and positioned. Mounting base 57 by pin 62
Are positioned in the circumferential direction. The drive unit replacement unit 54 is attached to the mounting base by bolts 64 as a coupling means.
57, and is configured to be removable in the extension 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の取付け孔69aに挿入される
芯出し部材71と、その芯出し部材71の中心において送り
軸19に係合する係合部材としてボールネジナット72とを
一体に組付けて構成されている。芯出し部材71と装着ベ
ース69とには同芯のテーパ部73が設けられ、被動部交換
ユニット70はテーパ部73を介して装着ベース69の内側に
挿入されて芯出しされている。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の取付け孔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の取付け孔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の及び支持軸受55と送
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 mounted on a support base 66 erected on the frame 1 by bolts 67 and can be removed toward the drive unit replacing unit 54, and a bearing 68 is incorporated therein. The driven part replacing unit 70 includes a saddle of the tool post 3.
A centering member 71 inserted into the mounting hole 69a of the mounting base 69 fixed to 23, and a ball screw nut 72 as an engaging member that engages with the feed shaft 19 at the center of the centering member 71 are integrally assembled. It is configured. A concentric tapered portion 73 is provided between the centering member 71 and the mounting base 69, and the driven part replacing unit 70 is inserted inside the mounting base 69 via the tapered portion 73 and is centered. Then, the driven part replacing unit 70 is attached to the mounting base 69 by bolts 74 as connecting means.
, And is configured to be removable in the same direction as the drive unit replacing unit 54 and the support bearing 55. In this embodiment, the centering member 71 of the driven part replacing unit 70 is used.
Is large enough to pass through the mounting hole 57a of the mounting base 57,
Further, the support bearing 55 is formed in a size that can pass through the mounting hole 69a of the mounting base 69, and is mounted integrally with the driving part replacement unit 54, the driven part replacement unit 70, and the support bearing 55 and the feed shaft 19. It is configured so that it can be disassembled and assembled to the bases 57, 69 and the support base 66.
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 described.
主軸台２、刃物台３、心押台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。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27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、位置決めピン30により位置決
めされ、かつ、ボルト32により固定される。When a failure occurs in the headstock 2, the tool rest 3, and the tailstock 4, the replacement units 25, 35, 46 are disassembled and assembled in the same procedure. If a failure occurs in the headstock 2, first, the bolt 32 is removed and the headstock replacement unit 25 is disassembled from the mounting base 9 to the tool post 3 side. Next, the spare headstock exchange unit 25 is inserted into the mounting base 9, the centering member 27 is centered with respect to the mounting base 9 via the tapered portion 29, the positioning is performed by the positioning pin 30, and the Fixed by 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
心押台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及び心押台交換ユニット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 a simple operation of 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 operation stoppage time of the NC lathe at the time of failure can be greatly reduced. If a spare headstock replacement unit 25 is prepared, not only can a defective product be brought to a manufacturing factory and repaired carefully, but also there is an advantage that it can be used interchangeably with another machine of the same model. Also in the base 3 and the tailstock 4, the tool rest changing unit 35 and the tailstock changing unit 46 can be easily and quickly changed in the same manner as 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、駆動部孔ユニット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。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。On the other hand, if a failure occurs in the feed shaft mechanism 5, the bolts 64, 74, and 67 are removed, and the drive unit hole unit 54, the driven unit replacement unit 70, and the support bearing 55 are integrated with the feed shaft 19 and the mounting base 57. , 69 and the support 66. Then, the spare feed shaft mechanism 5 is assembled. At this time, the drive unit replacing unit 54 is attached to the mounting base 57 by the centering member 58.
The driven unit replacing unit 70 is accurately centered and positioned on the mounting base 69 by the centering member 71, and then fixed by the bolts 64 and 74. Therefore, also in this case, the feed shaft mechanism 5 can be replaced accurately and quickly with a small number of man-hours. If it is not necessary to replace the entire feed shaft mechanism 5, only one or both of the drive unit replacement unit 54 and the driven unit 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。The present invention is not limited to only the NC lathe of the above embodiment, and can be embodied by applying to a grinding machine, and the shape and configuration of each part can be appropriately changed without departing from the spirit of the present invention. It is also possible to change and implement.
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
数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 Effect of the Invention As described in detail above, according to the machine tool of the first aspect of the present invention, the exchange unit is configured by integrally assembling the support member and the centering member. When a failure occurs in the supporting mechanism, the replacement unit can be disassembled and assembled accurately and quickly with a small number of man-hours, and an excellent effect that the operation stoppage time of the man-hour machine can be greatly reduced.
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, 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
の心押台を示す断面図、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
正面図である。 １……フレーム、２……主軸台、３……刃物台、４……
心押台、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
……心押、16……心押軸、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……テーパ部、30,39,49,62……位置決めピ
ン、35……刃物台交換ユニット、46……心押台交換ユニ
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、72……ボールネジナット。FIG. 1 is a sectional view showing a headstock of an NC lathe according to an embodiment of the present invention, FIG. 2 is a sectional view showing its tool post, FIG. 3 is a sectional view showing its tailstock, and FIG. FIG. 5 is a partially cutaway front view showing the entire conventional machine tool, showing the feed shaft mechanism. 1 ... frame, 2 ... headstock, 3 ... tool post, 4 ...
Tailstock, 5 ... Feed shaft mechanism, 6 ... Chuck, 7 ... Spindle, 8 ... Pulley, 9,14,18,57,69 ... Mounting base, 10
…… Byte, 11 …… Turret, 12,17,60 …… Motor, 15
… Tailstock, 16… tailstock shaft, 19… feed shaft, 25… headstock replacement unit, 27, 36, 47, 58, 71… centering member, 29, 38,
48, 61, 73 ... taper, 30, 39, 49, 62 ... positioning pin, 35 ... tool post replacement unit, 46 ... tailstock replacement unit, 54 ... drive unit replacement unit, 59 ... Bearing, 70 ……
Driven part replacement unit, 72 …… Ball screw nut.
Claims (2)
持部材と同心の芯出し部材とを一体に組付けて交換ユニ
ットを構成し、前記交換ユニットが装着される装着ベー
スを設け、装着ベースと前記芯出し部材とに同心のテー
パ部を設け、前記装着ベースの内側に交換ユニットを挿
入し、結合手段により分解可能に組み付けたことを特徴
とする工作機械。An exchange unit is constructed by integrally assembling a support member for supporting a work engaging element and a centering member concentric with the support member, and a mounting base on which the exchange unit is mounted is provided. A machine tool, wherein a concentric tapered portion is provided on a base and the centering member, a replacement unit is inserted inside the mounting base, and disassembled by coupling means.
材と同心の芯出し部材とを一体に組付けて交換ユニット
を構成し、前記交換ユニットが装着される装着ベースを
設け、装着ベースと前記芯出し部材とに同心のテーパ部
を設け、前記装着ベースに交換ユニットを挿入し、結合
手段により分解可能に組み付けたことを特徴とする工作
機械。2. An exchange unit is constructed by integrally assembling an engagement member engaged with a feed shaft and a centering member concentric with the engagement member, and a mounting base on which the exchange unit is mounted is provided. A machine tool characterized in that a concentric tapered portion is provided between the mounting base and the centering member, a replacement unit is inserted into the mounting base, and the dismountable unit is assembled by coupling means.
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 JPH04193442A (en) | 1992-07-13 |
| JP3072351B2 true 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) |
Family Cites Families (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
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04193442A (en) | 1992-07-13 |
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