JPS6067016A - Pipe machining apparatus - Google Patents

Abstract

PURPOSE:To improve machining precision by rotatably engaging a second ring carrying a motor, decelerator and a cutter with a first ring disposed coaxially with respect to a shaft grasped by a vice to reduce the distance between the cutter and the vice. CONSTITUTION:A first ring 4 mounted through a base 3 to a vice 2 for grasping a pipe 1 and a second ring 5 carrying a motor 6, a decelerator 7 and a cutter 8 and rotatable along the first ring 4 are rotatably engaged with each other by fitting semi-annular fixtures 10, 11 onto a roughened surface provided on the radially outer periphery of the engaging portion of the rings 4, 5. An adjusting member 9 is operated to feed the cutter 8 toward the pipe 1, and then the cutter 8 is moved round the pipe 1 along the outer periphery thereof to cut off the pipe 1. The second ring 5 has a groove 13, and the groove 13 and the fixture 10 pull each other at the tapered portion formed in the fitting direction of the fixture 10 to be coaxially disposed, which is effective along with the reduction of the distance between the cutter 8 and the vice 2 in remarkable improvement of machining precision.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the configuration of a pipe processing device that cuts a pipe or processes a cut end surface.

The pipe is cut to the required length at the workplace, etc., and the cut 117i end is joined to the phase 77. It involves work such as 8-touching.

For this reason, the pipe is exactly the! J-shaped straw is cut perpendicular to the axial direction or shaped into a special shape for welding]
I needed to recover.

In particular, when welding the cut end faces together, it was necessary to form a taper that spreads in the outer diameter direction on the cut rIII end face for welding, and it was necessary to apply a taper to the cutting groove L. .

For this reason, various attempts have been made to create a pipe processing device configured to rotate a 7J tube along the outer circumference of the pipe.
In order to avoid moving the cutter around the outer periphery of the pipe, and to improve machining accuracy -4, it is structurally strong and has a positive 1i'lf rotation with no play. In addition, it must be configured so that it does not fit easily with various type 1 pipes, and generally does not rotate long pipes during machining. However, it was also desired that the device be made compact in consideration of movement.

The present invention was made in view of these circumstances, and
It is an object of the present invention to provide a vibrator processing device that can easily cut a vibrator and process the cut end face, and can process the cut end face easily and accurately.

Hereinafter, the present invention will be described with reference to one embodiment shown in the drawings. FIG. 1 is a plan view of the main part of a pipe processing apparatus according to the present invention, and FIG. 2 is a longitudinal sectional view of the main part.

FIG. 3 is a vertical cross-sectional view of main parts according to another embodiment.

FIG. 4 is a side view showing the shape of the semicircular fixture.

In FIG. 1, the pipe processing device is provided with a vise 2 for gripping a vibrator 1 from both sides, and a first ring 4 is installed on the vise 2 via a base 3.

The first ring 4 has a wobble structure through which the vibrator 1 fixed by a vise 2 passes, and a second ring 5 that rotates along the first ring 4 is provided. There is.

An electric motor 6 is fixed to the second ring 5, and a cutter 8 is connected to the electric motor 6 via a reduction gear 7.

Further, the cutter 8 is configured to extend from the outer circumference yj direction of the vibrator 1, and the length of the cutter 8 can be adjusted by an adjustment screw 9.

J, T, The first ring 4 and the second ring 5 (Jl, each of which has an unevenness formed on the radial outer periphery of the abutting portion, and a half-moon shaped fixture 10.11 is fitted into this unevenness. There is.

The first ring 4 and the second ring 5 are drawn together by rotating rings J and 5, as shown in Figure 12, and the unevenness corresponds to the vortices 12 and 13 formed on each. It is formed as follows.

The fixing member 10 is formed to have a cross-section of 1-shape so as to fit into each of the grooves 12 and 13 at the same time.

Furthermore, the fixture 10 is secured to the first ring 4 by the poles 1-14, and the second ring 5 is configured to slide onto the first ring 4 and the fixture 10.

Further, the ring 13 formed on the second ring 5 is tapered in the fitting direction of the fixing device 10 together with the fixing device 10, so that when the fixing device 10 is fitted together, they are drawn to each other. It is configured.

However, the first ring 4 and the second ring 5 are arranged so that they are attracted to each other, and the axes of the grip of the vice 2 and the axes of the first ring 4 and the second ring 5 are aligned. is configured to do so.

And cutter 81. J, extending toward this axis J
J, 474 have been completed.

a3 in FIG. 3, and in another embodiment the first ring 4'
lri 12- is formed on the second ring 5'
is rotatably attached (pull) via a fixture 10=.

The fixture 10'' is then fixed to the second ring 5' by a bolt 14'.

In FIG. 4, the fixture 10- is formed in a half-moon shape, and is configured so that the fixtures formed in the same shape are fitted into the first and second rings 4-15- from opposing positions. ing.

With such a configuration L12, the pipe processing device passes the vibrator 1 through the first ring 'IJjJ and the second ring 5]4, sets the cutter 8 at the desired position for cutting, etc., and places it in a vise. 2 - (fixed, electric IA3t (i'
,! Rotate.

Then, turn off the vibrator 1 and turn off the vibrator 1.
Use the adjustment screw 9 to extend the cutter 8 toward the buff of the vibrator 1.

Further, the electric motor 6 is rotated around the outer periphery of the vibrator 1 by using the rotation of the second link 5.

In this way, by moving the cutter 8 around the outer circumference of the vibrator 1, the vibrator 1 can be easily cut.

In addition to cutting the vibrator 1, various shapes of the 7J Tsuk-E can be used to easily perform the cutting *η: addition of I and TO.

In other words, two cutters with different diameters are used, and the cutting edge of each cutter contacts the cutting end surface of the vibrator 1.
With the configuration J, a step is formed in the cut end surface (J, in the radial direction).

Therefore, if a step is formed on the cut end surface, it will not be convenient for the lifting platform to be joined and welded. It becomes possible to perform reliable welding without causing any damage.

Therefore, the step t on the cutting end surface of the vibrator 1 is preferably tapered rather than stepped, and it is easy to do so by forming the cutting edge of the cutter 8 into a shape that provides a taper on the cutting end surface. 1g of any shape can be obtained.

In this way, the distance between the cutter 8 of the electric motor 6 and the vise 2 can be reduced by configuring the first ring 4 and the second ring 5 to rotate against each other. Because you can
The cutter 8 acts at a position where the gripping force of the vise 2 has a large influence, improving machining accuracy.

′! Jz, the position where the cutter 8 acts is far from the gripping position of the vise 2 (as the working pressure of the cutter 8 acts to bend the vibrator 1, at the cutting start position and end position, They will not match accurately and a slight step will be created in the axial direction of the vibrator 1.

To solve this problem, the vise 2 and the cutter 8 should be brought close to each other, and the first ring 4 and the second ring 5 should be
．． 13, and fit the half-moon-shaped fixing tool 10.11 from the outer circumferential side, and assemble the vise 2 side.
Since the assembly of the electric motor (and the six sides) can be done separately, it is effective for manufacturing or for cleaning during disassembly and assembly.

On the other hand, both rings are tightened at the primary joint between the first ring 4 and the second link 5. By forming a tapered shape, play between the first ring 4 and the second ring 5 can be eliminated, and machining accuracy can be greatly improved.

Furthermore, as in the embodiments shown in FIGS. 3 and 4, the groove 12' is formed only in the first ring 4-, and the same effect as b can be obtained using the fixture 10-.

As explained above, by using the present invention, it is possible to reduce the space between the vise and the cutter, improve the machining accuracy of the J blade, and only separate the side of the blade and the motor side. It is possible to assemble both parts after assembly, and it is extremely effective in terms of production, disassembly, and cleaning, and its effectiveness is an industry expert.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a main part of a vibrator processing apparatus according to the present invention, and FIG. 2 is a longitudinal sectional view of the main part. FIG. 3 is a vertical cross-sectional view of main parts according to another embodiment. FIG. 4 is a side view showing the shape of the semicircular fixture. 1... Vibrator, 2... Force, 4... First ring, 5... Second ring, 6... Electric motor,
8...Cutter, 1o, 11...Fixing tool. Patent applicant Shibaura Seisakusho Co., Ltd.

Claims (2)

[Claims] (1) A first ring is provided at the same axis as the gripping axis of the vise, a second ring is provided that rotates along this first ring, and an electric motor is installed in this second ring. At the same time, a cutter extending toward the center of the rotating shaft is stepped, and a fitting portion that is uneven in the radial direction is formed at the joint portion of the first ring and the second ring. A pipe processing device characterized in that it is assembled by fitting a half-moon-shaped fixture into a fitting part from the outer circumferential side. (2) b between the fixture and at least one of the rings;
The pipe processing device described in the patent scope No. 1, characterized in that the pipe processing device is configured to be tapered in the X-coupling direction so as to be able to perform a tightening operation.