JPH08112672A - Boring machine of duct main tube for air conditioner - Google Patents
Boring machine of duct main tube for air conditionerInfo
- Publication number
- JPH08112672A JPH08112672A JP28107894A JP28107894A JPH08112672A JP H08112672 A JPH08112672 A JP H08112672A JP 28107894 A JP28107894 A JP 28107894A JP 28107894 A JP28107894 A JP 28107894A JP H08112672 A JPH08112672 A JP H08112672A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- duct
- mother pipe
- workpiece
- nozzle
- 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.)
- Pending
Links
Landscapes
- Duct Arrangements (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は空調用ダクト母管の穴あ
け機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling machine for air-conditioning duct mother tubes.
【０００２】[0002]
【従来技術】従来この種の円形ダクト母管に穴をあける
手段として、ダクト母管に接続する枝管の穴径を直接け
がきして瓦斯、電気等の切断穿孔方法によって行なわれ
るのが一般的であった。2. Description of the Related Art Conventionally, as a means for forming a hole in a circular duct mother pipe of this type, it is generally carried out by directly cutting the hole diameter of a branch pipe connected to the duct mother pipe by a cutting and perforating method such as gas and electricity. It was target.
【０００３】[0003]
【発明が解決しようとする課題】ビル等の空調用ダクト
工事は一般にダクト母管に穴を穿ち、これに枝管を接続
して所要域に配管する作業で、この作業は天井の隙間や
既設工事物との混設が多くしきりに現場合わせになり、
あわせ作業の重要部品等は工場へ戻し加工することにな
り工事進捗の難点である。こうした実情に鑑み可搬性の
ダクト母管穴あけ機を前記作業重点工区に配備できるこ
とが要求される。Air-conditioning duct work for buildings and the like is generally a work in which a duct mother pipe is perforated and a branch pipe is connected to the pipe to connect it to the required area. There are many mixed installations with construction items, and they are often site-aligned,
The important parts of the matching work are returned to the factory and processed, which is a difficulty in the construction progress. In view of such circumstances, it is required that a portable duct mother pipe hole punching machine can be installed in the work priority area.
【０００４】[0004]
【課題を解決するための手段】可般性に優れたしかも操
作が簡単にできるダクト母管穴あけ機を提供するには各
構成部の部品点数を最少にとどめ、その手段として図
１、図２に示した主軸５に作業回転をなす駆動装置と、
切断穿孔する切断機構と、これを誘導する切断設定機構
と、被加工体（ダクト母管）を加工姿勢に位置づけする
係止機構とを単純化した。In order to provide a duct mother pipe drilling machine which is highly versatile and easy to operate, the number of parts of each component is minimized, and as a means therefor, FIGS. A drive device for performing work rotation on the spindle 5 shown in FIG.
The cutting mechanism for cutting and punching, the cutting setting mechanism for guiding the cutting mechanism, and the locking mechanism for positioning the workpiece (duct mother pipe) in the processing posture are simplified.
【０００５】[0005]
【作用】主軸５に設けた横木２０に加工半径に調整され
た切断ノズル４を一回転一加工させる減速モーター２６
とプーリー３７による駆動機構Ｂがあって、その回転は
円筒カム６をノズル４と同位に回し円筒カム６の倣い部
１７がテーパころ１６の中立ちリング２１ところがり、
円筒カム６の上下動変位とノズル４の回転と相まって枝
管２の接続用穴３を切断穿孔するものである。Function: A deceleration motor 26 for machining the cutting nozzle 4 adjusted to the machining radius one by one on the cross bar 20 provided on the main shaft 5.
There is a drive mechanism B by means of a pulley 37, and the rotation thereof rotates the cylindrical cam 6 in the same direction as the nozzle 4, and the copying portion 17 of the cylindrical cam 6 locates the neutral ring 21 of the tapered roller 16,
Together with the vertical movement displacement of the cylindrical cam 6 and the rotation of the nozzle 4, the connecting hole 3 of the branch pipe 2 is cut and punched.
【０００６】これより先、前記の穴３を穿つ被加工体
（ダクト母管）１の加工中心即ち、主軸５の中心に位置
決めするために、被加工体（ダクト母管）１の円周を主
軸５と平行に架体７に固着した有孔板１８の上下しかも
両側対向に縦桿８を通して支え、更に、下部に架体７に
固着した対面有孔板１９の対面する孔に横桿９が斜め差
しになるように挿し込み、その縦桿８と横桿９とを鋭角
に交叉させその内角１０に前記被加工体（ダクト母管）
１を挟持させ、更に、上下修正は調節部２２で行なう。Before this, the circumference of the workpiece (duct mother tube) 1 is positioned in order to position it at the machining center of the workpiece (duct mother tube) 1 in which the hole 3 is bored, that is, the center of the spindle 5. The vertical plate 8 is supported vertically and on both sides of the perforated plate 18 fixed to the frame 7 in parallel with the main shaft 5, and further supported by the horizontal rod 9 in the facing hole of the facing plate 19 fixed to the frame 7 at the lower part. Is inserted obliquely, and the vertical rod 8 and the horizontal rod 9 are intersected at an acute angle, and the work piece (duct mother pipe) is formed at the inner angle 10 thereof.
1 is sandwiched, and the up / down correction is performed by the adjusting unit 22.
【０００７】又、切断用ノズル４の切断時に発生するア
ーク雰囲気を最良に保持するためアーク保持機２３を設
け、摺動軸２６に積層したリング１５でテーパころ１６
を形成し、ハンドル２４の操作で中立リング２１を起点
に左右に移動して得たリング１５の径の段差値でアーク
雰囲気を最良に保持するものである。Further, an arc holder 23 is provided in order to best maintain the arc atmosphere generated when the cutting nozzle 4 is cut, and the tapered roller 16 is formed by the ring 15 laminated on the sliding shaft 26.
Is formed, and the arc atmosphere is best maintained by the step value of the diameter of the ring 15 obtained by moving the neutral ring 21 left and right by operating the handle 24.
【０００８】[0008]
【実施例】以下図面に示した実施例に基づいて本発明を
詳細に説明する。図１は本発明の一実施例を示すこの図
に於て、主軸５の頂部に設けた円筒カム６を有する切断
線設定機構Ａと、これを回転させる駆動機構Ｂと、その
回転で切断ノズル４で切断穿孔する切断機構Ｃと、被加
工体（ダクト母管）１を加工中心に位置決めする係止機
構Ｄとを架体７に組み付けてなる空調用ダクト母管穴あ
け機で。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. FIG. 1 shows an embodiment of the present invention. In this drawing, a cutting line setting mechanism A having a cylindrical cam 6 provided on the top of a main shaft 5, a drive mechanism B for rotating the cutting line setting mechanism A, and a cutting nozzle by the rotation thereof. An air-conditioning duct mother pipe drilling machine in which a cutting mechanism C for cutting and punching at 4 and a locking mechanism D for positioning the workpiece (duct mother pipe) 1 at the processing center are assembled to a frame 7.
【０００９】切断線設定機構Ａは、主軸５の頂部に位置
し図３、図４のように主軸５に鍔金２８をねじ３０で固
締し、これに重ねて十字片１２を二重に置きその間に間
座２９を挟み間隙１１を形成してボルト３１で締着す
る。一方円筒カム６の取り付け面１３に十字形切除３２
を成形して、前記十字形切除３２の切除部に十字片１２
の頂部３３を嵌め込み≒４５°回わし間隙１１に嵌め合
わせピン１４を挿入する。The cutting line setting mechanism A is located at the top of the main shaft 5, and as shown in FIGS. 3 and 4, a flange 28 is fastened to the main shaft 5 with a screw 30, and the cross piece 12 is doubled by stacking it. The spacer 29 is sandwiched between them and the gap 11 is formed, and the bolts 31 are tightened. On the other hand, the cross-shaped cutout 32 is attached to the mounting surface 13 of the cylindrical cam 6.
To form a cross piece 12 at the cut portion of the cross cut 32.
Insert the fitting pin 14 into the gap 11 by fitting the top portion 33 of the same and turning it by about 45 °.
【００１０】次に、図６の模式図に示すように、円筒カ
ム６の倣い部１７に摺動軸２６の片端にリング１５を軸
方向に重層してテーパころ１６を形成してこれを接触さ
せ、軸受２５に嵌設し制限子２７をもち摺動軸２６の他
端にハンドル２４を設けてピンで連結してアーク保持機
２３をなす。Next, as shown in the schematic view of FIG. 6, a ring 15 is axially layered on one end of the sliding shaft 26 at the copying portion 17 of the cylindrical cam 6 to form a tapered roller 16, and the tapered roller 16 is contacted. Then, the arc holder 23 is formed by fitting the bearing 25 with the restrictor 27, and by providing the handle 24 at the other end of the sliding shaft 26 and connecting it with a pin.
【００１１】前記アーク保持機２３は、通常円筒カム６
の倣い部１７が中立ちリング２１と接し、前記倣い部１
７を刃先状に成形してあるので、複数個のリング１５の
個々の周速に支配されて自由に移動しないようにした。
更に、円筒カム６は穿孔する被加工体（ダクト母管）１
と枝管２の径によって設定された所定のものと取替え
る。The arc holder 23 is usually a cylindrical cam 6
The copying section 17 of the above-mentioned contacting the neutral ring 21,
Since 7 is shaped like a cutting edge, it is prevented from freely moving under the influence of the peripheral speed of each of the plurality of rings 15.
Further, the cylindrical cam 6 is a workpiece to be drilled (duct mother pipe) 1
And a predetermined one set by the diameter of the branch pipe 2.
【００１２】又、主軸５に固着した切断ノズル４が被加
工体（ダクト母管）１に図１のように枝管２の接続用穴
３を切断孔被加工体（ダクト母管）１と切断用ノズル４
の間隙に生じたアークが被加工体（ダクト母管）１の環
境によって、正常なアーク雰囲気が保たれない状態にな
った時そのアーク雰囲気を補正するため、前記テーパこ
ろ１６の中立リング２１を起点として左右にハンドル２
４で移動して円筒カム６を上下動しノズル４と被加工体
（ダクト母管）１のギャップを調整してアークを最良に
保持する。Further, a cutting nozzle 4 fixed to a main shaft 5 has a connecting hole 3 of a branch pipe 2 in a workpiece (duct mother pipe) 1 as shown in FIG. Cutting nozzle 4
The neutral ring 21 of the taper roller 16 is adjusted in order to correct the arc atmosphere when the normal arc atmosphere is not maintained due to the environment of the workpiece (duct mother tube) 1 Left and right handles 2 as the starting point
4, the cylindrical cam 6 is moved up and down to adjust the gap between the nozzle 4 and the workpiece (duct mother pipe) 1 to keep the arc at its best.
【００１３】図５は、円筒カム６を展開したもので、倣
い部１７の波形は被加工体（ダクト母管）１の管径と、
これに接続する枝管２の管径とによって設定され、薄鋼
板を設定波形に切断し倣い部１７の先端部を刃先状にな
し、円筒形に成形後取り付け面に固設し特に倣い部１７
を熱処理で硬化させる。FIG. 5 is an exploded view of the cylindrical cam 6. The waveform of the copying portion 17 is the pipe diameter of the workpiece (duct mother pipe) 1,
It is set by the pipe diameter of the branch pipe 2 connected to this, the thin steel plate is cut into a set corrugation, the tip portion of the copying portion 17 is formed into a cutting edge shape, and it is fixed to the mounting surface after being formed into a cylindrical shape.
Is cured by heat treatment.
【００１４】駆動機構Ｂは、図１、図２、図６に示す主
軸５にプーリー３７を固着し減速モーター３６を介して
ベルト伝動し一回転一作業させ主軸５に係わる回転仕事
をなす。The drive mechanism B carries out a rotary work related to the main shaft 5 by fixing a pulley 37 to the main shaft 5 shown in FIGS. 1, 2 and 6 and transmitting the belt through a reduction motor 36 to make one rotation work.
【００１５】切断機構Ｃは、図１、図６に示すように、
主軸５に固定した横木２０に横摺動できるバンド４０に
固締された切断ノズル４は、主軸５の回転に伴い円筒カ
ム６のカム的誘導に従い被加工体（ダクト母管）１の円
周に接続用穴３を切断穿孔するものである。The cutting mechanism C, as shown in FIGS.
The cutting nozzle 4, which is fixed to the band 40 that can slide laterally on the crossbar 20 fixed to the spindle 5, follows the circumference of the workpiece (duct mother pipe) 1 according to the cam guide of the cylindrical cam 6 as the spindle 5 rotates. The connection hole 3 is cut and punched.
【００１６】係止機構Ｄは、図７に示す被加工体（ダク
ト母管）１を加工中心に位置決めするものであって、被
加工体（ダクト母管）１の主軸中心に平行に被加工体
（ダクト母管）１の円周面に架体７に固着した有孔板１
８が上下対向位置にあり、その有孔板１８には複数個の
孔３４が穿たれていて、該孔３４は縦桿８が容易に入る
孔をもつもので、図７ｂに示す形状をして薄鋼板を用い
成形したものであり、これに縦桿８を通し、被加工体
（ダクト母管）１に接触させ床組３４の床面に突き当て
て立てる。一方、架体７の背部に図７ａに示す対面有孔
板１９を固着し、この対面有孔板１９は図７ａに示す
［形をなし薄鋼板で成形しこれに図示のような孔３５を
穿ったもので、これに横桿９を前記孔３５に段違いに斜
め差しにし、被加工体（ダクト母管）１の下部円周面に
接するように支え、縦桿８と横桿９とが交叉する鋭角の
内角１０に被加工体（ダクト母管）１を挟持させる。前
記した、上下有孔板１８と対面有孔板１９は架体７の側
方に位置し左右対向に設けられる。The locking mechanism D is for positioning the workpiece (duct mother pipe) 1 shown in FIG. 7 around the machining center, and the workpiece is machined parallel to the main axis of the workpiece (duct mother pipe) 1. A perforated plate 1 fixed to a frame 7 on the circumferential surface of a body (duct mother pipe) 1.
8 is in a vertically opposed position, and a plurality of holes 34 are formed in the perforated plate 18, and the holes 34 have holes into which the vertical rod 8 can be easily inserted, and have the shape shown in FIG. 7b. It is formed by using a thin steel plate, and the vertical rod 8 is passed through the thin steel plate to be brought into contact with the workpiece (duct mother pipe) 1 and abutted against the floor surface of the floor assembly 34 to stand. On the other hand, the facing perforated plate 19 shown in FIG. 7a is fixed to the back part of the frame 7, and the facing perforated plate 19 is shown in FIG. 7a. The rods were drilled, and the horizontal rods 9 were inserted into the holes 35 at different angles and supported so as to come into contact with the lower circumferential surface of the workpiece (duct mother pipe) 1, and the vertical rods 8 and the horizontal rods 9 were attached. The workpiece (duct mother pipe) 1 is held between the intersecting acute inner angles 10. The above-mentioned upper and lower perforated plate 18 and the facing perforated plate 19 are located laterally of the frame 7 and are provided laterally opposite to each other.
【００１７】前述の係止機構Ｄに於て、切断ノズル４が
切断姿勢に入った時点で多少の上下調節を必要なとき
は調節部２２がある。これは主軸５の下部に主軸５と滑
動できる、設定した上下動可能な筒状のものに横木２０
を固定し調節部２２を緊定する止ねじ３８からなる。In the above-mentioned locking mechanism D, the adjusting portion 22 is provided when a slight vertical adjustment is required when the cutting nozzle 4 enters the cutting posture. This is a set of vertically movable tubular parts that can slide on the lower part of the main shaft 5 and can be slid with the main shaft 5.
And a set screw 38 for fixing the adjusting portion 22.
【００１８】架体７は、底部に床組３９をもち上部構造
は薄鋼板で箱型に剛体構造にしたもので、床組３９は薄
鋼板で短足のテーブル状の構造をもつ。The frame 7 has a floor set 39 at the bottom and an upper structure made of a thin steel plate in a box-shaped rigid structure. The floor set 39 is a thin steel plate and has a short foot table structure.
【００１９】[0019]
【発明効果】以上説明したように、各機構の使用部品点
数が少なく構造が単純であるから可搬性に優れると共に
操作が容易である。これは即ち、主軸５に係設された円
筒カム６やモーター２８で駆動されるプーリー２９は極
めて低速の一回転で一作業が終了するし主軸５に固着さ
れた横木２０にバンド４０で締付けられた切断用ノズル
４も極めて軽量であり単純である。又、係止機構Ｄに於
ても、２本の交叉する縦桿８と横桿９の内角１０に被加
工体（ダクト母管）１を挟持させる簡単なものである。As described above, since the number of parts used in each mechanism is small and the structure is simple, the portability is excellent and the operation is easy. That is, the cylindrical cam 6 fixed to the main shaft 5 or the pulley 29 driven by the motor 28 completes one work with one rotation at an extremely low speed, and is fastened with a band 40 to the cross bar 20 fixed to the main shaft 5. The cutting nozzle 4 is also extremely lightweight and simple. Also, in the locking mechanism D, the workpiece (duct mother pipe) 1 is simply held between the inner angles 10 of the two intersecting vertical rods 8 and horizontal rods 9.
【図１】本発明による空調用ダクト母管穴あけ機の側面
図、図２のｘ−ｘ断面矢覗図FIG. 1 is a side view of an air conditioning duct mother pipe drilling machine according to the present invention, and a view taken along the line xx in FIG.
【図２】本発明による空調用ダクト母管穴あけ機の平面
図FIG. 2 is a plan view of an air-conditioning duct mother tube punch according to the present invention.
【図３】本発明の円筒カムを主軸に取り付けた平面図FIG. 3 is a plan view in which the cylindrical cam of the present invention is attached to a main shaft.
【図４】図３に於けるＯ−Ｏ断面矢覗図 主軸に取り付
けた図３のＯ−Ｏ断面矢覗図4 is a view taken along the line OO of FIG. 3 and is a view taken along the line OO of FIG.
【図５】本発明の円筒カムの展開図FIG. 5 is a development view of the cylindrical cam of the present invention.
【図６】本発明の切断設定機構とアーク保持機の模式図FIG. 6 is a schematic diagram of a cutting setting mechanism and an arc holder of the present invention.
【図７】本発明の被加工体（ダクト母管）の係止機構の
説明図（ 図７ａ ）図７に於ける対面有孔板側面図
（ 図７ｂ ）図７に於ける有孔板の平面図7 is an explanatory view of a locking mechanism of a workpiece (duct mother pipe) according to the present invention (FIG. 7a), a side view of a facing plate with holes in FIG. 7 (FIG. 7b) of a plate with holes in FIG. Plan view
１ 被加工体（ダクト母管） ２ 枝管 ３ 接続用孔 ４ 切断用ノズル ５ 主軸 ６ 円筒カム ７ 架体 ８ 縦桿 ９ 横桿 １０ 内角 １１ 間隙 １２ 十字片 １３ 取り付け面 １４ ピン １５ リング １６ テーパころ １７ 倣い部 １８ 有孔板 １９ 対面有孔板 ２０ 横木 ２１ 中立リング ２２ 調節部 ２３ アーク保持機 ２４ ハンドル ２５ 軸受 ２６ 摺動軸 ２７ 制限子 ２８ 鍔金 ２９ 間座 ３０ ねじ ３１ ボルト ３２ 十字形切除 ３３ 頂部 ３４ 孔 ３５ 孔 ３６ モーター ３７ プーリー ３８ 止ねじ ３９ 床組 Ａ 切断線設定機構 Ｂ 駆動機構 Ｃ 切断機構 Ｄ 係止機構 1 Workpiece (duct mother pipe) 2 Branch pipe 3 Connection hole 4 Cutting nozzle 5 Main spindle 6 Cylindrical cam 7 Frame 8 Vertical rod 9 Horizontal rod 10 Inner angle 11 Gap 12 Cross piece 13 Mounting surface 14 Pin 15 Ring 16 Taper Roller 17 Copying part 18 Perforated plate 19 Face-to-face perforated plate 20 Horizontal bar 21 Neutral ring 22 Adjusting part 23 Arc retainer 24 Handle 25 Bearing 26 Sliding shaft 27 Restrictor 28 Collar 29 Spacer 30 Screw 31 Bolt 32 Cross-shaped cutting 33 Top 34 Hole 35 Hole 36 Motor 37 Pulley 38 Set Screw 39 Floor Assembly A Cutting Line Setting Mechanism B Drive Mechanism C Cutting Mechanism D Locking Mechanism
Claims (1)
面に枝管（２）を接続する穴（３）をあける切断用ノズ
ル（４）を、切断線上に誘導する主軸（５）に固着した
円筒カム（６）を有する切断線設定機構（Ａ）と、切断
用ノズル（４）が被加工体（ダクト母管）（１）の円筒
周面に枝管（２）を接続する穴（３）を切断穿孔する作
業駆動の駆動機構（Ｂ）と、切断用ノズル（４）が被加
工体（ダクト母管）（１）円筒周面に枝管（２）を接続
する穴径を切断穿孔するノズル（４）をもつ切断機構
（Ｃ）と、被加工体（ダクト母管）（１）を切断穿孔す
る加工位置決め係止機構（Ｄ）とを架体（７）に組付け
てなる空調ダクト母管穴あけ機に於て、切断線設定機構
（Ａ）の主軸（５）の頂部に間隙（１１）をもつ二重の
十字片（１２）を鍔金（２８）を介して固定し、円筒カ
ム（６）の取り付け面（１３）を十字形に切除（３２）
し、間隙（１１）に取り付け面（１３）を嵌入しピン孔
と係合させてピン（１４）を挿入し、 摺動軸（２６）に複数個のリング（１５）を軸方向に積
層して、テーパころ（１６）を成形してなる円筒カム
（６）に接するテーパころ（１６）の中立リング（２
１）を起点に左右に変位したリング（１５）径の段差値
が、アークの保持値とし、 前記円筒カム（６）と接するテーパころ（１６）に接す
る倣い部（１７）を刃先状に成形し、 主軸（５）の軸中心にある被加工体（ダクト母管）
（１）の外周に接する縦に縦桿（８）と斜めに横桿
（９）をそれぞれ設け、前記縦桿（８）と横桿（９）と
がなす鋭角の内角（１０）に、前記被加工体（ダクト母
管）（１）を挟持させ係止してなることを特徴とする空
調用ダクト母管の穴あけ機。1. A spindle (1) for guiding a cutting nozzle (4) on a cutting line, in which a cutting nozzle (4) having a hole (3) for connecting a branch pipe (2) is formed on a cylindrical peripheral surface of a workpiece (duct mother pipe) (1). A cutting line setting mechanism (A) having a cylindrical cam (6) fixed to 5) and a cutting nozzle (4) installs a branch pipe (2) on the cylindrical peripheral surface of a workpiece (duct mother pipe) (1). A drive mechanism (B) for driving work for cutting and punching the connecting hole (3) and a cutting nozzle (4) connect the branch pipe (2) to the peripheral surface of the workpiece (duct mother pipe) (1) cylinder. A cutting mechanism (C) having a nozzle (4) for cutting and drilling a hole diameter, and a processing positioning locking mechanism (D) for cutting and drilling a workpiece (duct mother pipe) (1) are mounted on a frame (7). In the assembled air-conditioning duct mother pipe drilling machine, a double cross piece (12) having a gap (11) at the top of the spindle (5) of the cutting line setting mechanism (A) is plated. Fixing via (28), the mounting surface (13) of the cylindrical cam (6) is cut into a cross shape (32).
Then, the mounting surface (13) is fitted into the gap (11) and engaged with the pin hole to insert the pin (14), and a plurality of rings (15) are axially laminated on the sliding shaft (26). Neutral ring (2) of the tapered roller (16) contacting the cylindrical cam (6) formed by molding the tapered roller (16).
The step value of the diameter of the ring (15) displaced left and right from 1) is taken as the arc holding value, and the copying portion (17) in contact with the tapered roller (16) in contact with the cylindrical cam (6) is shaped like a cutting edge. And the work piece (duct mother pipe) located at the axis center of the spindle (5)
Vertical rods (8) and diagonal horizontal rods (9) are provided vertically in contact with the outer periphery of (1), respectively, and at the inner angle (10) of the acute angle formed by the vertical rods (8) and the horizontal rods (9), A drilling machine for an air-conditioning duct mother pipe, wherein a workpiece (duct mother pipe) (1) is clamped and locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28107894A JPH08112672A (en) | 1994-10-11 | 1994-10-11 | Boring machine of duct main tube for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28107894A JPH08112672A (en) | 1994-10-11 | 1994-10-11 | Boring machine of duct main tube for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08112672A true JPH08112672A (en) | 1996-05-07 |
Family
ID=17634024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28107894A Pending JPH08112672A (en) | 1994-10-11 | 1994-10-11 | Boring machine of duct main tube for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08112672A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453235C (en) * | 2007-02-13 | 2009-01-21 | 包钢钢威液压件有限责任公司 | Electric perforating method of seamless tube blank |
| CN105583494A (en) * | 2015-12-15 | 2016-05-18 | 南通职业大学 | Thin-wall pipe automatic welding device |
| CN108044166A (en) * | 2017-11-21 | 2018-05-18 | 刘平 | A kind of hydraulic engineering water pipe cutting equipment |
-
1994
- 1994-10-11 JP JP28107894A patent/JPH08112672A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453235C (en) * | 2007-02-13 | 2009-01-21 | 包钢钢威液压件有限责任公司 | Electric perforating method of seamless tube blank |
| CN105583494A (en) * | 2015-12-15 | 2016-05-18 | 南通职业大学 | Thin-wall pipe automatic welding device |
| CN108044166A (en) * | 2017-11-21 | 2018-05-18 | 刘平 | A kind of hydraulic engineering water pipe cutting equipment |
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