JP2001277121A - Jig for blasting fitting - Google Patents
Jig for blasting fittingInfo
- Publication number
- JP2001277121A JP2001277121A JP2000094750A JP2000094750A JP2001277121A JP 2001277121 A JP2001277121 A JP 2001277121A JP 2000094750 A JP2000094750 A JP 2000094750A JP 2000094750 A JP2000094750 A JP 2000094750A JP 2001277121 A JP2001277121 A JP 2001277121A
- Authority
- JP
- Japan
- Prior art keywords
- support member
- deformed pipe
- pipe
- height
- deformed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Jigs For Machine Tools (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、配管用異形管内
面をブラスト処理する際のその異形管の支持(固定)治
具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for supporting (fixing) a deformed pipe when blasting the inner surface of the pipe.
【0002】[0002]
【従来の技術】水道等の配管をするのに地中に埋没する
ダクタイル鋳鉄管があり、このダクタイル鋳鉄管を繋ぎ
合わせる継手として異形管がある。この異形管は例えば
図5の態様をしており、その内面には防食等のために塗
装が施され、その前処理としてブラスト処理が行われ
る。このブラスト処理は、一般に、ブラスト用ノズルを
異形管内に挿入し、そのノズルから、通称、グリットと
呼ばれる鋼球を半分に切断した等のブラスト材を噴出し
て行う(実施例参照)。2. Description of the Related Art There is a ductile cast iron pipe buried in the ground for piping such as water supply, and there is a deformed pipe as a joint for connecting the ductile cast iron pipe. The deformed pipe has, for example, the form shown in FIG. 5, and its inner surface is coated for anticorrosion and the like, and blasting is performed as a pretreatment. In general, the blasting process is performed by inserting a blast nozzle into a deformed pipe and ejecting a blast material such as a steel ball cut in half from a nozzle called a grit (see Examples).
【0003】このとき、その異形管Wを支持固定する治
具が必要であり、従来では、その専用治具を各種の異形
管Wそれぞれに対し製作していた。At this time, a jig for supporting and fixing the deformed pipe W is required. Conventionally, a dedicated jig has been manufactured for each of the various shaped pipes W.
【0004】[0004]
【発明が解決しようとする課題】異形管Wは、呼び径
(mm)で、100、150、200、250の4種
類、形状で、ストレート、90度屈曲、45度屈曲、2
2.5度屈曲、11.25度屈曲、5.625屈曲の6
種類、構造で、NS型、SII型、A型、K型などの数種
類あり、それらの各種異形管Wにそれぞれ対応した専用
支持治具は非常に数の多いものとなっていた。また、そ
の各種異形管Wのブラスト処理毎に治具交換をしなけれ
ばならず、その交換作業が煩わしいものとなっていた。The deformed pipe W has four types of nominal diameters (mm), 100, 150, 200, and 250, and is straight, 90-degree bent, 45-degree bent,
2.5 degree bend, 11.25 degree bend, 5.625 bend 6
There are several types and structures, such as NS type, SII type, A type, K type, etc., and the number of dedicated support jigs corresponding to these various shaped tubes W is very large. In addition, the jig must be replaced every time the blast processing of the various shaped pipes W is performed, and the replacement work is troublesome.
【0005】この発明は、一の治具でもって、各種の異
形管を支持固定できるようにすることを課題とする。SUMMARY OF THE INVENTION It is an object of the present invention to enable various jigs to be supported and fixed with one jig.
【0006】[0006]
【課題を解決するための手段】上記課題を達成するため
に、この発明は、まず、回転テーブル上で支持するよう
にしたのである。ブラスト用ノズルは異形管内に真直ぐ
に挿入されるため、異形管が曲管の場合、回転テーブル
を回して、異形管の受口部と挿し口部をそれぞれノズル
に対向させてその挿入を円滑にし得るようにするためで
ある。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention first supports a rotary table. Since the blast nozzle is inserted straight into the deformed pipe, if the deformed pipe is a curved pipe, turn the rotary table so that the receiving port and the insertion port of the deformed pipe face the nozzle respectively to facilitate the insertion. To get it.
【0007】つぎに、この発明は、異形管の受口部、挿
し口部及びその中間部の下面を支持部材上に載せ、その
異形管を上面から押さえて固定支持するようにしたので
ある。曲管にあっては、中間部を支持しないと、中間部
が下方に回転して、管軸がほぼ水平面上に位置され得な
いからである。このとき、3点支持部は、管軸がほぼ水
平になるように設定するとともに、回転テーブルの径方
向上として、テーブルが回っても、受口部と挿し口部の
軸心がほぼテーブル径方向にあって、ノズルが挿入可能
とする。また、受口部と挿し口部の支持は、嵌め合いと
して転がらないようにする。Next, according to the present invention, the lower surface of the receiving portion, the insertion portion, and the intermediate portion of the deformed tube are placed on a support member, and the deformed tube is pressed down from the upper surface and fixedly supported. This is because, in the case of a curved tube, unless the intermediate portion is supported, the intermediate portion rotates downward, and the tube axis cannot be positioned substantially on a horizontal plane. At this time, the three-point support portion is set so that the pipe axis is substantially horizontal, and the axial center of the receiving portion and the insertion portion is substantially equal to the table diameter even when the table is rotated. In the direction, the nozzle can be inserted. Further, the support of the receiving portion and the insertion portion is prevented from rolling as fitting.
【0008】[0008]
【発明の実施の形態】この発明の実施形態としては、ブ
ラスト用ノズルを異形管内に挿入し、そのノズルからブ
ラスト材を噴出して異形管内をブラスト処理する際、そ
の異形管を支持する治具において、回転テーブル上に、
前記異形管の受口部の支持部材と、挿し口部の支持部材
と、その中間部の支持部材とをテーブルの径方向に沿っ
て設けるとともに、その各部材に載った異形管をその上
面から押さえて各部材に固定する部材を設け、前記受口
部用支持部材はその受口部が上方から嵌まるV字状凹部
を形成したものであり、前記挿し口部用支持部材は、そ
の挿し口部が上方から嵌まる凹部を有するとともにテー
ブルの周方向に異形管の形状に応じて移動可能かつ固定
可能となっており、前記受口部と挿し口部をその支持部
材で支持した際、受口部と挿し口部の軸心はほぼ同一高
さになるようになっており、かつ、中間支持部材は異形
管が上方から当接して、その当接高さはその異形管の中
間部の軸心高さが前記受口部と挿し口部の軸心高さとほ
ぼ同一となるようになっている構成を採用し得る。DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, a jig for supporting a deformed pipe when a blast nozzle is inserted into the deformed pipe and a blast material is ejected from the nozzle to blast the inside of the deformed pipe. In, on the rotary table,
The supporting member of the receiving portion of the deformed tube, the supporting member of the insertion portion, and the supporting member of the intermediate portion are provided along the radial direction of the table, and the deformed tube mounted on each member is removed from the upper surface. A member for holding down and fixing to each member is provided, and the supporting member for the receiving portion is formed with a V-shaped concave portion in which the receiving portion is fitted from above, and the supporting member for the inserting portion is provided with the insertion member. The mouth has a concave portion fitted from above and is movable and fixable in the circumferential direction of the table according to the shape of the deformed pipe, and when the receiving port and the insertion port are supported by the support member, The axis of the receiving portion and the insertion portion are substantially the same height, and the deformed pipe is in contact with the intermediate support member from above, and the contact height is the intermediate portion of the deformed pipe. So that the height of the center of the shaft is substantially the same as the height of the center of the receiving portion and the insertion portion. It can be adopted going on configuration.
【0009】この構成の異形管ブラスト用治具は、受口
部及び挿し口部が凹部に嵌まっているため、異形管が転
がらず、その管軸がほぼ水平に支持される。このため、
ノズルを水平に挿入し得る。押さえ部材には、チェー
ン、剛性紐などの強靱なものを使用する。挿し口部用支
持部材はテーブルの周方向に適宜に移動させて、異形管
が曲管の場合、受口部に対する挿し口部の屈曲度に対応
させる。In the jig for blasting a deformed pipe having this structure, since the receiving portion and the insertion portion are fitted in the concave portions, the deformed tube does not roll and the pipe shaft is supported substantially horizontally. For this reason,
The nozzle can be inserted horizontally. A strong member such as a chain or a rigid string is used for the holding member. The insertion port support member is appropriately moved in the circumferential direction of the table to correspond to the degree of bending of the insertion port with respect to the receiving port when the deformed pipe is a curved pipe.
【0010】[0010]
【実施例】この実施例は、図1に示すブラスト装置に使
用され、その装置は、ターンテーブル1上にこの実施例
の治具Pが中心対称に位置され、テーブル1の回転によ
り、治具Pがブラスト位置Aと交換位置Bに交互に位置
される。ブラスト位置Aでは、ノズル2が矢印方向に進
退して異形管Wに挿入されてブラスト作用が行われる。
また、治具Pが、45度屈曲の異形管の場合は135度
等と異形管Wの種類に応じて適宜に回転することによ
り、異形管Wの受口部10と挿し口部11が交互にノズ
ル2に対向する。交換位置Bでは、作業者がブラスト加
工済の異形管Wと未処理の異形管Wを交換する。この交
換作業はロボットによって行うこともできる。図中、3
は交換位置Bを隔離する隔壁である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS This embodiment is used for a blasting apparatus shown in FIG. 1, in which a jig P of this embodiment is positioned on a turntable 1 symmetrically about a center. P is alternately located at the blast position A and the exchange position B. At the blast position A, the nozzle 2 advances and retreats in the direction of the arrow and is inserted into the deformed pipe W to perform the blast action.
When the jig P is a bent tube bent at 45 degrees, the receiving portion 10 and the insertion portion 11 of the bent tube W are alternately rotated by 135 degrees or the like as appropriate according to the type of the bent tube W. Oppose the nozzle 2. At the exchange position B, the operator exchanges the blasted deformed pipe W with the unprocessed deformed pipe W. This exchange work can also be performed by a robot. In the figure, 3
Is a partition separating the exchange position B.
【0011】治具Pを図2に示し、回転テーブル20上
に、受口部10の支持部材21と、挿し口部11の支持
部材22と、その中間部の支持部材23がテーブル径方
向に順々に固定されている。受口部用支持部材21は、
2個のブロック21a、21aから成り、両ブロック2
1a、21aには120度の開脚度のV字状凹部24が
形成され、図4に示すように、呼び径の異なる異形管P
1 、P2 、P3 、P4の受口部が載置される。なお、両
ブロック21a、21aに段差があるのは、受口部の外
径変化に適宜に対応するためである。図中、各管の呼び
径(mm)は、P1 :250、P2 :200、P3 :1
50、P4 :100であり、支持部材21に載置した状
態ではその下面の高さに大きな差がなく、ノズル2の挿
入に支障がないことがわかる。A jig P is shown in FIG. 2, and a support member 21 of a receiving portion 10, a support member 22 of an insertion portion 11, and a support member 23 of an intermediate portion thereof are arranged on a rotary table 20 in a table radial direction. It is fixed in order. The support member 21 for the receiving portion is
Two blocks 21a, 21a
A V-shaped recess 24 having a leg opening degree of 120 degrees is formed in each of 1a and 21a, and as shown in FIG.
1, the mouth part of the P 2, P 3, P 4 is placed. The reason why the two blocks 21a and 21a have a step is to appropriately cope with a change in the outer diameter of the receiving portion. In the figure, the nominal diameter of each tube (mm) is, P 1: 250, P 2 : 200, P 3: 1
50, P 4 : 100, and it can be seen that there is no significant difference in the height of the lower surface of the support member 21 when it is placed on the support member 21, and there is no obstacle to the insertion of the nozzle 2.
【0012】挿し口部用支持部材22は、テーブル20
に固定の円弧状部材22a上に上向きコ字状の部材22
bをその下面の杆を部材22aの穴22cに嵌めて止め
たものであり、そのコ字状部材22bの凹部に挿し口部
11を嵌めて支持する。コ字状部材22bは、異形管P
の屈曲度に応じて部材22a上を動かし、受口部10が
常に一定の方向に向いて支持されるようにする。異形管
Wの種類が特定されておれば、コ字状部材22bの位置
も特定されるため、その位置に嵌め止めし得るように、
部材22aに穴22cを形成しておく。コ字状部材22
bの支持高さは異形管Wの挿し口部11の軸心が、受口
部10の軸心とほぼ同一高さとなるようにする。この支
持高さも異形管Wの種類によってはあまり変化せず、ま
た、上述のように、支持部材21による受口部10の高
さは異形管Wの種類によってあまり変化しないため、異
形管Wの種類が変わっても、受口部10と挿し口部11
は、ノズル2の挿入に支障がない範囲内であるその軸心
がほぼ同一の高さに支持される。The support member 22 for the insertion port is connected to the table 20.
U-shaped member 22 on an arc-shaped member 22a fixed to
b is fixed by fitting the rod on the lower surface thereof into the hole 22c of the member 22a, and the insertion opening 11 is fitted into the concave portion of the U-shaped member 22b and supported. The U-shaped member 22 b is
Is moved on the member 22a in accordance with the degree of bending so that the socket 10 is always supported in a fixed direction. If the type of the deformed tube W is specified, the position of the U-shaped member 22b is also specified, so that it can be fitted at that position.
A hole 22c is formed in the member 22a. U-shaped member 22
The supporting height of b is such that the axis of the insertion port 11 of the deformed pipe W is substantially the same as the axis of the receiving port 10. This supporting height does not change much depending on the type of the deformed pipe W. Further, as described above, the height of the receptacle 10 by the support member 21 does not change much depending on the type of the deformed pipe W. Even if the type changes, the receiving part 10 and the inserting part 11
Is supported at substantially the same height as its axis within a range that does not hinder the insertion of the nozzle 2.
【0013】中間支持部材23は、長方体ブロックから
成り、その高さは、異形管Wの中間部の軸心高さが受口
部10と挿し口部11の軸心高さとほぼ同一となるよう
に設定する。例えば、支持する各異形管Wの中間高さと
する。上述のように、呼び径変化による支持下面の変化
は少ないため、その中間高さであれば、各異形管Wをほ
ぼ水平に支持し得るからである。The intermediate support member 23 is formed of a rectangular block, and its height is such that the axial center height of the intermediate portion of the deformed tube W is substantially the same as the axial center height of the receiving portion 10 and the insertion portion 11. Set to be. For example, the intermediate height of each deformed pipe W to be supported is set. As described above, since the change in the support lower surface due to the change in the nominal diameter is small, if the intermediate height is the intermediate height, each deformed pipe W can be supported substantially horizontally.
【0014】中間支持部材23の両側方には、固定部材
となるチェーン25の係止具26、27が設けられ、一
方の係止具26はテーブル周方向に2個設けられてい
る。この係止具26の選択により、チェーン25の最も
好ましい掛け具合の方向を決定する。他方の係止具27
は、係止杆27aが3本あって、異形管Wの径に対応し
てチェーン25のフック25aを係止する杆27aを選
択する。チェーン25にはコイルばね(図示せず)を介
設し、その付勢力により、異形管Wの押圧力を得る。そ
のばねはカバー28で保護する。On both sides of the intermediate support member 23, locking members 26, 27 of the chain 25 serving as fixing members are provided, and one locking member 26 is provided in the circumferential direction of the table. The selection of the locking member 26 determines the most preferable direction of hooking of the chain 25. The other stopper 27
Selects the rod 27a that has three locking rods 27a and locks the hook 25a of the chain 25 in accordance with the diameter of the deformed pipe W. A coil spring (not shown) is interposed in the chain 25, and the pressing force of the deformed pipe W is obtained by the urging force. The spring is protected by a cover 28.
【0015】この実施例は以上の構成であり、図3に示
すように、異形管Pを各支持部材21、22、23、2
5で支持し、作業者がスタートボタンを押すと、図1の
ターンテーブル1が回転してブラスト位置Aに送り込ま
れ、ノズル2が異形管W内に挿入されてブラスト処理が
自動的に行われる。その挿入時、異形管Wにノズル2が
接触しないように、ノズル2には細いものを使用する。This embodiment has the above construction. As shown in FIG. 3, the deformed pipe P is connected to each of the support members 21, 22, 23, 2
When the operator presses the start button, the turntable 1 in FIG. 1 rotates and is sent to the blast position A, the nozzle 2 is inserted into the deformed pipe W, and the blast processing is automatically performed. . At the time of insertion, a thin nozzle 2 is used so that the nozzle 2 does not contact the deformed pipe W.
【0016】[0016]
【発明の効果】この発明は、以上のように構成して、異
形管ブラスト用専用治具としたので、各種の異形管を円
滑に支持固定でき、その作業も円滑である。According to the present invention, a special jig for blasting a deformed pipe is constructed as described above, so that various deformed pipes can be supported and fixed smoothly, and the work is also smooth.
【図1】異形管のブラスト作用図FIG. 1 Blast action diagram of deformed pipe
【図2】一実施例の斜視図FIG. 2 is a perspective view of one embodiment.
【図3】同実施例による異形管の支持態様斜視図FIG. 3 is a perspective view of a supporting form of the deformed pipe according to the embodiment.
【図4】同支持作用図FIG. 4 is a diagram of the supporting action.
【図5】一異形管の断面図FIG. 5 is a cross-sectional view of one modified pipe.
A ブラスト位置 B 交換位置 P 治具 W 異形管 1 ターンテーブル 2 ブラストノズル 10 受口部 11 挿し口部 20 回転テーブル 21 受口部用支持部材 22 挿し口部用支持部材 22b コ字状部材 23 中間支持部材 24 V字状凹部 25 固定部材(チェーン) 26、27 係止具 Reference Signs List A blast position B exchange position P jig W deformed tube 1 turntable 2 blast nozzle 10 receiving port 11 insertion port 20 rotary table 21 receiving port support member 22 insertion port support member 22b U-shaped member 23 intermediate Supporting member 24 V-shaped concave portion 25 Fixing member (chain) 26, 27 Locking member
Claims (1)
し、そのノズル2からブラスト材を噴出して異形管W内
をブラスト処理する際、その異形管Wを支持する治具P
であって、 回転テーブル20上に、上記異形管Wの受口部10の支
持部材21と、挿し口部11の支持部材22と、その中
間部の支持部材23とをテーブル20の径方向に沿って
設けるとともに、その各部材21、22、23に載った
異形管Wをその上面から押さえて各部材21、22、2
3に固定する部材25を設け、 上記受口部用支持部材21はその受口部10が上方から
嵌まるV字状凹部24を形成したものであり、上記挿し
口部用支持部材22は、その挿し口部11が上方から嵌
まる凹部を有するとともにテーブル20の周方向に異形
管Wの形状に応じて移動可能かつ固定可能となってお
り、前記受口部10と挿し口部11をその支持部材2
1、22で支持した際、受口部10と挿し口部11の軸
心はほぼ同一高さになるようになっており、かつ、中間
支持部材23は異形管Wが上方から当接して、その当接
高さはその異形管Wの中間部の軸心高さが前記受口部1
0と挿し口部11の軸心高さとほぼ同一となるようにな
っている異形管ブラスト用治具。1. A jig P for supporting a deformed pipe W when a blast nozzle 2 is inserted into the deformed pipe W and a blast material is ejected from the nozzle 2 to blast the inside of the deformed pipe W.
The support member 21 of the receptacle 10, the support member 22 of the insertion port 11, and the support member 23 of the intermediate portion of the support member 21 on the rotary table 20 are arranged in the radial direction of the table 20. Along with each other, and press the deformed pipe W placed on each member 21, 22, 23 from the upper surface thereof to make each member 21, 22, 2
3 is provided on the support member 21. The support member 21 for the receiving portion is formed with a V-shaped concave portion 24 into which the receiving portion 10 is fitted from above. The insertion port 11 has a concave portion fitted from above and is movable and fixable in the circumferential direction of the table 20 according to the shape of the deformed pipe W. Support member 2
When supported by 1, 22, the axis of the receiving portion 10 and the insertion portion 11 are substantially at the same height, and the intermediate support member 23 is brought into contact with the deformed pipe W from above, The contact height is the same as the height of the axial center of the intermediate portion of the deformed pipe W.
A jig for blasting a deformed pipe, which has a height of 0 and is substantially the same as the axial center height of the insertion port 11.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000094750A JP3694633B2 (en) | 2000-03-30 | 2000-03-30 | Deformed pipe blasting jig |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000094750A JP3694633B2 (en) | 2000-03-30 | 2000-03-30 | Deformed pipe blasting jig |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001277121A true JP2001277121A (en) | 2001-10-09 |
JP3694633B2 JP3694633B2 (en) | 2005-09-14 |
Family
ID=18609748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000094750A Expired - Fee Related JP3694633B2 (en) | 2000-03-30 | 2000-03-30 | Deformed pipe blasting jig |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3694633B2 (en) |
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CN102430932A (en) * | 2011-10-21 | 2012-05-02 | 河南飞龙(芜湖)汽车零部件有限公司 | Large-surface clamping tool for milling of exhaust pipe |
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CN102672606A (en) * | 2012-05-31 | 2012-09-19 | 江苏华阳管业股份有限公司 | Processing fixture of external straight end of bend |
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