JPS61136713A - Method and device for cutting pipe - Google Patents

Abstract

PURPOSE:To cut pipes in excellent accuracy of inserting rod-shaped stoppers through the ends of the pipes provided with annexed members therein until the stoppers touch the annexed members and setting cutting positions with the dimensions from the ends of pipes to the annexed members in alignment. CONSTITUTION:A plurality of rod-shaped stopper are inserted through a plurality of the end 3 of a pipe 2 provided with an intra-pipe annexed member 1 respectively. The ends of the stoppers are pushed to touch the annexed members so that the pipe 2 may be moved in the axial direction. And cutting positions are set by aligninggthe contact positions between the annexed members 1 and a plurality of the end of a stopper 4. Then, the pipes 2 are fixed by a fixing tool 5, the stoppers 4 are pulled out and a plurality of the pipe 2 are cut simultaneously at the abovementioned set cutting positions.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for cutting the above-mentioned pipe having an appendage inward from the pipe end on the inner side of the pipe, and particularly relates to a method for cutting the above-mentioned pipe having attachments inward from the pipe end. The present invention relates to a method for cutting pipes and an apparatus for cutting the pipes so that dimensions up to the fittings of the pipes are uniform.

[Conventional technology]

Conventionally, a scale and an ordinary cutter are used to cut the above-mentioned pipes that have attachments inward from the inner pipe end, and the scale is inserted from the pipe end into each pipe, and the pipe is cut from the pipe end. The cutting position was determined by measuring the distance to the pipe fittings, and the pipes were cut one by one using the normal cutting area.

[Problem that the invention seeks to solve]

In such conventional cutting methods and devices, a scale and an ordinary cutting machine are used to cut
As mentioned above, the cutting position for each pipe was determined using a scale and each pipe was cut one by one, which resulted in a problem in which the accuracy of the length from the pipe end to the fittings inside the pipe deteriorated. .

In addition, since each piece is cut one by one, there is a problem in that the workability of cutting is poor.

[Failure to solve the problem]

In order to eliminate the above-mentioned problems in the conventional system, the present invention is directed to a plurality of rod-shaped stoppers 4 extending from the pipe ends 3 of a plurality of pipes 2 having pipe internal fittings 1, as shown in FIGS. 1 and 2.
Insert and press the tip against the pipe fittings,
The cutting position is set by moving the pipe 2 in the pipe axis direction and aligning the abutment positions of the pipe internal fixture 1 and the light ends of the plurality of rod-shaped stoppers 4, and then using the fixture 5 to set the cutting position. The pipe 2 is taken out from the pipe and cut at the cut position set above.

Also, insert from the pipe end 3 of f2 having the internal pipe fittings 1,
It is provided with a rod-shaped stopper 4 whose tip is brought into contact with and pressed against the pipe internal fixture 1, and a fixture 5 for the pipe 2.

[Effect]

According to the above-mentioned means of the present invention, since the length from the tube end 3 to the attachment 1't inside the tube 2 can be set by pressing with a rod-shaped stopper, the accuracy of the cutting length is improved.

Furthermore, since multiple tubes can be cut at the same time, the cutting work efficiency is improved.

〔Example〕

The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 2 shows a pipe 2 having an internal pipe fitting 1 inwardly from the pipe end 6.
In FIG. 1, a plurality of rod-shaped stoppers 4, which are formed so as to be able to move forward and backward, are inserted into the tube end 6 of the tube 2 by means of an air 7 ring, etc., and their tips are inserted into the tube. The pipe 2 is brought into contact with the attachment 1 and pressed further.
The cutting position is set by moving the pipe in the axial direction of the pipe and aligning the abutting positions of the pipe-internal attachment 1 and the tip of the rod-shaped stopper 4. Next, the fixture 5 is lowered to
After tightening and fixing, the rod-shaped stopper 4 is extracted from the tube 2 and cut at a set cutting position.

〔Effect of the invention〕

As explained above, the method and device for cutting a pipe according to the present invention can be achieved by simply inserting a rod-shaped stopper from the end of the pipe having an internal fitting, and pressing the tip of the pipe against the internal fitting. Since the cutting position is set, one operation becomes faster and the precision of the cutting length is improved. Furthermore, since multiple tubes can be cut at the same time, the cutting work efficiency is improved.

It can also be used to measure the length from a tube end bundle, such as a processed tube with holes.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view showing a method and apparatus for cutting a pipe, and FIG. 2 is a longitudinal sectional view of a pipe having internal fittings. 1: In-pipe fittings, 2: Pipe, 3: Pipe end. 4; Stopper; 5; Fixing tool. 1st Showa 2nd figure

Claims (2)

[Claims] (1) Insert a rod-shaped stopper from the end of the pipe that has an internal fitting, bring the tip into contact with the internal fitting, press it, and move the tube in the tube axis direction to connect the internal fitting and the rod-shaped stopper. Set the cutting position by aligning the abutting position with the tip of the stopper, then fix the pipe with a fixture, pull out the rod-shaped stopper from the pipe, and cut at the set cutting position. A method for cutting a pipe, characterized by: (2) A pipe characterized by comprising a rod-shaped stopper that is inserted from the end of a pipe having an internal fitting and whose tip is brought into contact with and presses against the internal fitting, and a fixture for the pipe. Cutting device.