JPS59137689A - Centering base for elbow - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elbow centering stand used when connecting pipe fittings to an elbow in an accurate shape in piping work.

Conventionally, when connecting pipe fittings such as flanges to elbows, it is difficult to place the elbows stably, so workers hold them by hand, determine the assembly angle and position, and then weld the joints. ing. Therefore, two workers are required for this work, and in order to accurately assemble the relative angle and position of the elbow and pipe fittings, they must use a level, a scale, an angle ruler, etc. Since the work must be carried out while repeatedly measuring , angle and position, the work time is long and it is inefficient.

Therefore, the present invention provides a centering stand that stably supports the elbow when connecting pipe fittings to the elbow, and enables the user to easily and quickly determine the correct relative angle and position of the pipe fittings, and connect the fittings. The purpose is to

That is, the centering table of the present invention is provided with a receiving plate whose inclination angle is set to the elbow angle, and a support plate opposite to this, so that one end surface of the elbow is brought into contact with the receiving plate K, and the other end surface is brought into contact with the receiving plate K. A movable linear ruler extending horizontally on the receiving plate and parallel to the central axis of the elbow is used to determine the angle and position of the fittings to be attached to the upper end of the elbow. It is.

Next, a description will be given of a centering table 10 according to an embodiment of the present invention shown in the drawings. 1 to 3 show the case where this centering table 10 is used to connect a 90 degree elbow and a 7-lunge, and FIG. 4 shows a case where it is used to connect a 45 degree elbow and a short pipe. Reference numeral 12 denotes a base, which is approximately T-shaped in plan view, and has a foot plate 14 on the lower surface that can be raised and lowered, so that it is installed horizontally.

Reference numeral 16 is a receiving plate, which is rotatably attached to the base by a receiving plate shaft 18, and fastens the back plate 20 provided on the back surface of the receiving plate 16 and the base 12 with tightening screws 22. Good, catch plate 16
The inclination angle with respect to the horizontal can be set to an elbow angle of 45 degrees or 90 degrees. Reference numeral 24 is a support plate, and the tip thereof is V-shaped.The tip of this plate is opposed to the receiving plate 16, and a support plate stand 30 is attached to the support plate shaft 26 and the bin 28 so that the mounting angle can be changed.
installed on. This support plate stand 30 is threadedly engaged with a helical shaft 34 which is attached to the base stand 12 and rotated υ by the handle 32.
Move closer to or away from 6. 36 is the horizontal axis,
It is attached to a horizontal shaft base 38 so as to extend in the horizontal direction parallel to the receiving plate 16, and this horizontal shaft base 38 is slidably fitted into rails 40 provided on both sides of the back surface of the receiving plate 16 in parallel with the receiving plate 16. Therefore, the horizontal shaft 36 can move up and down. 4
2 is a straight ruler and is attached to a ruler stand 44, and this ruler stand 44 is arranged so that the straight ruler 42 is perpendicular to the horizontal axis 36.
It is slidably fitted on the horizontal shaft. This ruler stand 44 is also provided with a leg portion 4 that comes into contact with the surface of the receiving plate 16, and the mounting angle of this leg portion 46 can be set at 90 degrees or 45 degrees depending on the rotating shaft and pin. Therefore, the straight line ruler 42 is set to extend in the horizontal direction.

Since this centering table 10 has the above configuration, it is used in the following manner.

When connecting a flange to a 90 degree elbow, see Figures 1 to 3.
Perform as shown in the figure. Set the receiving plate 16 using the tightening screws 22 so that the inclination angle is 90 degrees, and press the 90-degree elbow 4.
8 on the base 12 with one end surface in contact with the receiving plate 16 and the other end facing upward, and after adjusting the supporting plate 24 to an appropriate mounting angle, operate the nozzle 32. , the back of the elbow 48 is supported and held at the tip of the support plate 24.

Next, a flange 52 is placed on the upper end of the elbow 48 via a smoother 50, and the straight line ruler 42, which is set to extend horizontally, is placed on the upper surface of the elbow 48, and the thickness of the smoother 50 is adjusted so that they contact in a parallel state. Make the angle between the flange 520 surface and the end surface of the elbow 48 exactly 90 degrees, determine an appropriate root spacing, and then align the edge of the bolt hole 54 of the flange 52 with the straight ruler 42 as shown in FIG. , with the bolt holes 54 as the correct distribution positions, the elbows 48 and 7
Weld the lunge 52.

Next, when connecting a short pipe to the 45-degree elbow, do so as shown in Figure 4. The inclination angle of the receiving plate 16 is set to 45 degrees,
The mounting angle of the support plate 24 is adjusted appropriately, and one end surface of the 45-degree elbow 56 is brought into contact with the receiving plate 16 by operating the handle, and the back is brought into contact with the support plate 24 and held. Next, place the spacer 50 and the short pipe 58 on the upper end of the elbow 56, set the installation angle of the legs 46 of the ruler stand 44 to 45 degrees, apply the straight ruler 42 set to extend horizontally to the upper end of the short pipe 58, and place the spacer 50 on the upper end of the short pipe 58. Adjust the thickness of 50, find the correct assembly position, and weld.

As described above, according to the present invention, the elbow can be stably held by the receiving plate and the support plate.

In addition, since the straight ruler extends horizontally and can be moved up, down, left and right, you can easily check the end face of the elbow in contact with the receiving plate, the pipe fittings and short pipes connected to this elbow. The end face can be connected at the correct angle.

Furthermore, since the straight line ruler extends parallel to the central axis plane of the elbow, when connecting the 7 lunges, if you use it,
Bolt holes can be allocated correctly.

Therefore, according to the present invention, piping parts having the correct shape can be quickly and efficiently assembled by one worker.

[Brief Description of the Drawings] The drawings show one embodiment of the present invention, and Fig. 1 is a front view showing a partial cross section when used to connect a 90-degree elbow and a flange, and Fig. 2 is a right side view of the same. , FIG. 3 is a plan view of the same, and FIG. 4 is a front view when used to connect a 45-degree elbow and a short pipe. 10... Elbow centering stand, 16... Receiving plate, 24...
... Support plate, 36... Horizontal axis, 42... Straight ruler. -562-

Claims (1)

[Claims] 1. A receiving plate whose inclination angle with respect to the horizontal is set to the elbow angle, a support plate that supports and holds the back of the elbow placed with one end surface in contact with the receiving plate and the other end facing upward, and the receiving plate. A horizontal axis that is movable up and down along the plate and extends horizontally parallel to the receiving plate, and a straight line ruler that is movable along the horizontal axis and extends horizontally and perpendicular to the horizontal axis. An elbow centering stand comprising: