JPH0675797B2 - Molding tube restoration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is often found in, for example, the piping of a ship, and cannot be manufactured in advance at the drawing stage like the joint with each device and the joint of the hull block. At the factory, etc., a connecting pipe with flanges on both ends called a field type intake pipe (measuring pipe) whose shape and dimensions are determined according to the pipes already installed at the site is reproduced in the factory. The present invention relates to a molding tube restoration device for temporarily attaching (welding) to.

The conventional means for restoring the mold take-up tube is
Measure the dimensions of each part of the pipe already installed in the site using an automatic measuring device, receive the measurement data and convert the scalar (length, angle) into a vector, and obtain the pipe shape 4-point coordinate values to make it straight or curved After the calculation, the pipe processing calculation was performed, and the pipe manufacturing slip and the necessary material slip were output. Moreover, as for the connecting pipe with flanges on both ends, it is within the scope of the restoring device, and no processing is done on the software, and the measurement data is simply output to the pipe production slip.

With such a conventional method, the software cannot be fully utilized, so that it takes a considerable amount of time to restore, and it is particularly difficult to align the fastening holes of the flanges on both ends with the pipe body, and the desired temporary mounting is required. There is a drawback that it requires a lot of work, and it is impossible to secure the required accuracy, so
It is necessary to use a loose flange whose tightening hole is an arcuate long groove as the flange, and there is a drawback in that the structure of the restoration device itself requires a very complicated movement as a flange clamp mechanism.

The present invention has been proposed in view of the actual situation of steam, and the mold take-up tube restoration device capable of ensuring the required accuracy while allowing the restoration work to be performed easily by effectively utilizing the software. The purpose is to provide.

In order to achieve the above-mentioned object, the molding tube restoration device according to the present invention is a mechanism for constituting a face plate provided with a clamp mechanism capable of sandwiching and fixing a pair of flanges in a centered state so that the face plate can be moved relative to and away from one another. A mechanism for raising and lowering the face plate and means for detecting the amount of elevation thereof, a mechanism for moving the other face plate laterally with respect to the facing direction of the double-sided plate and means for detecting the amount of movement thereof, and a clamp mechanism for each of the double-sided plates. A mechanism for rotating around the axis and a means for detecting each rotation angle, and a mechanism for rotating each double-sided plate about a vertical axis near the clamp location and a means for detecting each rotation angle. With the feature that it has a structure, the following operational effects can be expected.

That is, according to the present invention, two straight lines in the space exist on a plane parallel to a plane including one straight line when the other straight line is rotated about one straight line axis by rotating the other straight line. They found the principle of doing and applied it, and provided a mechanism that operates based on this principle.

In other words, in detail, conventionally, the reference side point is the origin, the axis toward the next point is the xx axis, the left side is the + Y axis, and the upper side is the + axis.
Performs three-dimensional coordinate calculation according to the measurement angle as the Z axis,
Although the pipe machining calculation is performed based on the obtained coordinate values, the present invention is different from this and will be described with reference to FIGS. 3 and 4 according to the above-mentioned principle. (A,
Of B, C, D), a straight line consisting of the latter two points (C, D) (▲
▼) is rotated to the right or left around the straight line (▲ ▼) consisting of the previous two points (A, B), and the rotated straight line (▲
▼) or Is calculated on the plane parallel to the plane including the straight line (▲ ▼), the axis rotation is calculated, and the pipe machining calculation is performed based on the coordinate values after coordinate conversion, the flange hole swing angle at both ends is calculated, and the pipe manufacturing slip is restored. We adopted the method of displaying information for the device, and the data displayed on the tube manufacturing slip are as follows.

Then, based on the above data, the molding tube is restored as illustrated in FIGS. 5 and 6.

According to the device of the present invention having a configuration capable of fully utilizing the software as described above, the clamp mechanism is provided on each of the pair of face plates, and the clamps are clamped in the centered state, respectively, and then fixed on the pipe manufacturing sheet. By inserting the displayed data into each mechanism via a computer, the face plate, that is, a pair of flanges, is made to appear automatically or artificially with respect to the pipe body in the posture position according to the above data. In this state, between the flanges, in another place
A pipe bent by an NC machine is hung and set by a crane, etc., and in the case of a bent pipe, the straight pipe part on the other end is rotated around the straight pipe part on one end side to include the axes of both straight pipe parts. Only by adjusting the planes to be parallel to each other,
Even if there is some manufacturing error in the pipe processing, both ends of the pipe and both flanges can be reliably and easily butted to each other in a right angle position while the both end flanges are clamped and fixed in a state where the phase of the pipe and the tightening hole are in phase. You can

Therefore, the movement of the clamp mechanism is small, the structure of the device is simplified, and the restoration work is facilitated, and the required accuracy can be secured. In addition, it is not necessary to use a loose flange and is useful as a connecting pipe of this kind.

Embodiments of the present invention will be described in detail below with reference to the drawings.

In FIGS. 1 and 2, (1) and (1 ') are centering of a pair of flanges (F) and (F) which are workpieces through centering screw shafts (1a) and (1a'). Clamping mechanism which can be clamped and fixed in a state, (2) and (2 ') are face plates provided with the clamping mechanisms (1) and (1'), and a screw shaft ( It is attached to a fixed frame (10) and a movable frame (10 ') which are set so as to be movable relative to each other in the axial direction (Xc direction) of the face plate via 9). (8) is a motor (3A) for driving and rotating the screw shaft (9), a handle (3B) for manually rotating the screw shaft (9), and a clutch for selectively switching the interlocking of both (3A) and (3B) with the screw shaft (9). It is a relative perspective moving mechanism of face plates (2) and (2 ') composed of (3C). The one face plate (2) is supported and connected to an elevating frame (12) which is vertically held along the fixed frame (10) via a vertical screw shaft (11). It can move in the (Zc) direction as it goes up and down. (4) is a motor (4A) for driving and rotating the vertical screw shaft (11), a handle (4B) for manually rotating the vertical screw shaft (11), and switching of both (3A) and (3B) interlocking with the vertical screw shaft (11). It is an elevating mechanism for one face plate (2) composed of a clutch (4C) that operates. The other face plate (2 ') is transverse to the movable frame (10') through the horizontal screw shaft (13) at right angles to the opposing direction of the double-sided plates (2), (2 ') (Yc direction). ) Is supported and connected to a lateral movement frame (14) slidably mounted on the lateral movement frame (14).
(5) is a motor (5A) for driving and rotating the horizontal screw shaft (13), a handle (5B) for manually rotating the horizontal screw shaft (13), and both (5A).
It is a lateral movement mechanism of the other face plate (2 ') which is composed of a clutch (5C) for selectively switching the interlocking of the horizontal screw shafts (13) of (A) and (5B). The double-sided plates (2), (2 ') are respectively provided with the clamp mechanism (1),
In the state of being rotatable around the axis of (1 '), the lifting frame (1
2), while being pivotally supported by the lateral movement frame (14), the face plates (2) and (2 ') are respectively attached to the frames (12) and (14) via the handles (6B) and (6B'), respectively. Mechanisms (6) and (6 ') for rotating the shaft around the axis, and respective rotation angles (θ ₁ ),
Rotation angle detectors (15) and (15 ') such as an associate type rotary encoder for detecting (θ ₂ ) are provided. In addition, the fixed frame (10) and the movable frame (10 ') are each rotatable about the longitudinal axis close to the flange clamp location by the clamp mechanisms (1) and (1'), and the ground frame ( 8) and the lateral movement frame (14), and each frame (10) and (10 ') has a handle (7).
B) and (7B ') through the face plates (2) and (2') around the axis of the vertical axis ± 45 ° (total 90 °) and ± 90 ° (total 18)
Rotating angle detectors such as a rotary potentiometer for detecting the rotating angles (α) and (β), as well as the mechanisms (7) and (7 ′) for rotating over a range of 0 °). 16) and (16 ') are provided.

Further, in the grounding frame (8), the fixed frame (10) and the lateral movement frame (14), the fixed frame (10) and the movable frame (10 ') are separated from each other, that is, in the (Xc) direction. Amount of movement of the scale (17) for detecting the amount and the lifting frame (12), that is, (Zc)
The scale (18) for detecting the amount of vertical movement and the scale (19) for detecting the amount of lateral movement of the movable frame (10 '), that is, the amount of movement in the (Yc) direction are attached, and these scales (17), The amounts detected by (18) and (19) are each digitally displayed. In addition, each mechanism (3),
(4), (5), (6), (6 ') and (7),
(7 ') are lock levers (3R), (4R), (5R),
It has (6R), (6R ') and (7R), (7R').

Using the mold take-up pipe restoration device having the above-mentioned configuration, the process of restoring the mold take-up pipe measured on site and temporarily attaching the flanges (F), (F) and the curved pipe body (P) A brief description is as follows.

First, the shaft rotation amount (measurement data) based on the above-described principle of an articulated measuring device or the like that is laid across an existing pipe to be connected is input to the main computer via a recorder, and this main computer The optimum machining solution of the curved main pipe (P) is obtained based on the coordinate value obtained by coordinate-transforming the measurement axis rotation amount of (1), and output to the pipe production form, material form, collection / delivery list, etc.

Next, based on the data output to the pipe production slip, each mechanism (3,4,5,6,6 ', 7,7') of this device (24) is driven (automatically) or manually (manually). The pair of face plates (1) and (1 ') sandwiching the flanges (F) and (F) can be easily and surely made to appear in the posture and the position based on the above data by being operated by. In this state, the bent pipe body (P) separately processed through the NC machine on the basis of the above-mentioned production slip is used for the flanges (F), (F) by a crane or the like.
The field type pipe can be restored by suspending and setting it between them, and the curved pipe body (P) and the flanges (F) and (F) are temporarily attached in this restored state. The reason is that there is some manufacturing error in the curved pipe body (P) or there is a slight deviation in the attitude and position of the face plates (1) and (1 ') whose data are expressed below the decimal point. Thus, if the curved pipe body (P) cannot be inserted between the flanges (F) and (F), the insertion set can be performed by rotating one face plate (2 ') around its axis. Of.

It should be noted that each of the above-mentioned actuating mechanisms (3,4,5,6,6 ', 7,7') may be any one other than those shown in the above-mentioned embodiment, and the above-mentioned main computer ( 22) and this device (24) may be directly connected.

[Brief description of drawings]

FIG. 1 is an overall side view, FIG. 2 is an overall plan view, FIGS. 3 and 4 are principle explanatory diagrams, and FIGS. 5 and 6 are principle explanatory diagrams of a restoration procedure. (1), (1 ') ... Clamping mechanism, (2), (2')
... Face plate, (3) ... Relative perspective moving mechanism of face plate, (4)
...... Lifting mechanism, (5) ...... Lateral movement mechanism, (6),
(6 ') ... face plate rotating mechanism, (7), (7') ... face plate rotating mechanism, (9), (11), (13) ... screw shaft, (1
5), (15 '), (16), (16') ... Rotation angle detector, (17), (18), (19) ... Moving amount detection scale,
(F): Flange, (P): Curved tube body.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Matsumoto 1-1-1, Wadazaki-cho, Hyogo-ku, Kobe-shi, Hyogo Mitsubishi Heavy Industries Ltd. Kobe Shipyard (72) Inventor Masashi Tateishi Hiroshiba-cho, Suita-shi, Osaka 8-24 No. Kusakabe Machinery Co., Ltd. (72) Inventor Takehiko Yoshimura No. 8-24 Hiroshiba-cho, Suita City, Osaka Prefecture Kusakabe Electronics Industry Co., Ltd. (56) Reference JP-A-50-61724 (JP, A) JP 52-10979 (JP, A) Japanese Patent Publication Sho 53-34169 (JP, B2) Japan Welding Society, revised 3rd edition "Welding Handbook" Maruzen Co., Ltd. 259-P. 261

Claims (1)

[Claims] 1. A curved pipe-shaped molding tube restoration device, wherein a pair of flanges (F), (F) can be clamped and fixed in a centered state with a line connecting the centers of both end surfaces of the curved pipe as an axis. A mechanism (3) for arranging the face plates (2) and (2 ') equipped with the clamp mechanisms (1) and (1') so that they can move relative to each other and the relative distance movement amount of the face plates (2) and (2 ') ( Xc) detecting means such as a detection scale (17) for detecting Xc), a mechanism (4) for moving up and down one face plate (2), and its vertical movement amount (Zc)
A detection means including a detection scale (18) for detecting
A mechanism (5) for moving the other face plate (2 ') in the lateral direction,
And a detection means including a detection scale (19) for detecting the lateral movement amount (Yc), and double-sided plates (2) and (2 ').
Mechanisms (6) and (6 ') for rotating the clamp mechanisms (1) and (1') around their axes, and an angle detector for detecting their rotation angles (θ ₁ ) and (θ ₂ ). (15), (1
5 ') and the like, and double-sided plates (2), (2')
Mechanisms (7) and (7 ') for rotating each of them around the longitudinal axis close to the clamp location, and their rotation angles (α),
Angle detectors (16) and (16 ′) for detecting (β) are provided, and the detectors (17), (18), (19), (15) and (1
5 '), (16), (16') Based on the coordinate conversion value obtained from the digital data detected and displayed, the optimum processing solution of the target curved main pipe (P) is obtained and Based on the relative perspective moving mechanism (3) for the face plate, the lifting mechanism (4) for one face plate (2), the lateral movement mechanism (5) for the other face plate (2 '), the face plates (2), ( A mechanism (6), (6 ') for rotating 2') around an axis, and a face plate (2),
A mechanism (7) for rotating (2 ') around the vertical axis,
(7 ') is actuated to expose the pair of face plates (2), (2') holding the flanges (F), (F) in the posture and position according to the above-mentioned data, and to carry out the on-site collecting tube. A mold take-up tube restoring device comprising a mechanism for restoring and temporarily attaching the curved pipe body (P) and the flanges (F) and (F) in the restored state.