JPS5964263A - Device for machining piping - Google Patents

Abstract

PURPOSE:To machine the middle part of existing piping automatically by accelerating a tool supporting bracket in the centripetal direction along a fixed frame which is fixed on the outer periphery of said piping, in a device of machining piping used for equipment in an electric power plant, etc. CONSTITUTION:A fixing frame 12 is fixed to piping 10 through mounting and clamping bolts 14, 16, a slide shaft 36 is rotated by means of a motor 44, and a swinging frame 18 is rotated through a pinion 30. A the same time, the shaft 36 causes a tool shaft 56 to rotate through bevel gears 52, 54, and a grinder cutter 58 finishes a welded bead 66 under the accelerating force of a spring 60 and, when the amount of machining reaches a certain value, a limit switch 64 is operated to stop the machining. It is also possible to carry out cutting or edge preparation of piping by replacing the tool with other tools.

Description

[Detailed description of the invention] This invention relates to a piping force 11 device for performing.

For pipe joints in blunt equipment at nuclear power plants, thermal power plants, etc., beveling is performed using a grinder after cutting such as nonosus cutting or sawing, and after overlay butt welding, the pipes are finished using a grinder. ．． /) Otsu.

Therefore, it takes a long time to finish the piping butts, resulting in uneven finish.

Both ends of such piping (as it has already been fixed to other equipment,
The present invention takes the above facts into account and automatically cuts and bevels the middle part of piping that has already been identified and cut.

The object of the present invention is to obtain a piping processing device that can perform processing such as welding heat cutting.

A tool support bracket is provided along the outer circumference of the piping so that it can slide freely in the radial direction of the revolving frame, which is driven and rotated, in the radial direction of the piping, and this bracket is biased in the centripetal direction of the piping. , L: Take the existing arrangement to the middle part of R. It can be installed to enable automatic work.

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

As shown in FIGS. 1 to 4, in the actual construction 1+1j, a fixed frame 1 is assembled to the outer periphery of a pipe 10, and is mounted on a circular table.

This fixed phrase 1,” 2 is 2 minutes! It has 11 grooves and is composed of a semicircular arc, ] knee, 'A, and 12B.

Of course, it is also possible to have a multi-divided structure of two or more parts for this fixed flane.These arms] 2A.

The mounting bolts 1 are screwed into both ends of ]2I3 and integrated, and can be attached to the outer periphery of the middle part of the pipe ]○. These arms 12A, 128 have radially tightened poles) 16
7 are engaged, and by tightening these bolts, the active frame 12 is connected to the disk-shaped protruding portion 1 so as to be concentric with the piping ]-o.
2C, and the rotating frame 18 is connected to this protrusion 12.
It is designed to orbit around the C-climb.

(7) The first kite roller 20, which is pivotally supported on the revolving frame 18, is fitted into the ring-shaped kite (1η22) drilled into the end face of the protrusion 12('), and the second and third kite rollers 20 are inserted into the ring-shaped kite (1η22).
The rollers 24 and 26 sandwich both end surfaces of the protrusion 12c. The pinion shaft 2 is pivotally supported on the swivel frame 18.
The pinion 3o fixed to B is aligned with the ring gear carved on the outer periphery of the protrusion 12C.

This makes the rotating frame 1B a fixed frame]2. At the same time, the pinion shaft 28 rotates around the fixed frame 12 by rotation of the pinion shaft 28.

Bevel gear fixed to the end of pinion shaft 28: I 21
:Swivel frame] 8 meshes with the bevel gear 34 at right angles. This bevel gear 34 is attached to a key hole 38 drilled in the axial direction of this slide/gift 36.
A key (not shown) protruding from the housing 4 is fitted so that rotational force is transmitted between them.

Another bevel tooth jj beauty 4 Q is coaxially supported on the revolving armco 8 with the rake 1/yaf l-,'-+ 6, and the key inserted into the slide shaft 3G (iI38) is fixed. to apply rotational force to the slide/gift 36.A bevel gear 42 is attached to the bevel gear 4Q.
are in mesh with each other at right angles, and this bevel gear 42 receives the driving force of a morley 44 fixed to the rotating frame 18.

The motor 44 is supplied with power through a bran/48 that rolls with the rotation of the rotating frame 18 on a slip ring 46 fixed around the fixed frame 12.

The pivot frame 18 is prevented from moving in the axial direction with respect to the tool support bracket 5036, and a bevel gear 52 is fixed to the end of the slide shaft 36. A bevel gear 54 meshes with the bevel gear 52 at right angles, and the bevel gear 54 is fixed to a tool shaft 56 that is pivotally supported on the revolving frame 18.

This tool shaft 56 is arranged parallel to the axis of the pipe 10, and a tool is attached to the tip 'l:l'i. In this embodiment, a grinder cutter 58 is also attached.

A compression coil spring 6o is interposed between the tool support bracket 50 and the rotating frame 8, and biases the tool support bracket 50 in the centripetal direction of the piping 10. The force can be adjusted by changing the amount of screwing of the adjusting screw 62 into the rotating frame 8.

The approach of the tool shaft 56 to the pipe 1o is detected by a limit switch 64.

Next, the operation of this embodiment will be explained.

Fixing frame 12 is coaxially fixed to plumber o using mounting bolts 14 and tightening bolts 1G.

Since the slide/gift 36 is rotated by the drive of the motor 44, the binio/go 0 receives this motor driving force and rotates the rotating frame 8 around the fixed frame 12.

At the same time, the slide 7 shaft 36 has a bevel gear 52.5.
4 rotates the tool shaft 56, so the grinder cutters 5 and 3 can finish the weld bead 6 ('l) of the pipe joint.The welding heat 66 is pressed against the outer periphery of the pipe 10 by the force of the spring 60. Therefore, an appropriate cutting force is always applied. Instead of this cutter 58, other tools can be used.

When the glue 11 of the cutter 58 reaches a predetermined value, the limit switch 64 is activated to stop the rotation of the motor 44, and the work is completed by removing the fixed frame 2 from the plumber 0.

Alternatively, the motor 44 may be installed on the ground or the like, and the rotational force may be transmitted to the bevel gear 42 using a shaft such as a flexible wire or gear.

Since the present invention has the above configuration, it has the advantage that it can be easily installed in the middle of existing piping and can be automatically processed.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line 11--FIG.
Figure ni and Figure 4 are cross-sectional views taken along the line tv-1V in Figure 3. 10 Piping 2 ・Fixed frame. 18-・Swivel frame 300 Slide/file [・50・Tool support bracket 38-Grinder cutter 60 Compression coil spring. Figure 3 Figure 4

Claims (1)

[Claims] It is divided into TL and LI construction and is distributed around the outer circumference of the pipe in a conflicting manner [-4 constant frame and attached to this fixed frame and fixed by a driving force]. a frame, and a tool support plaque that is slidable in the radial direction of the piping and is attached to the