JPS5928725Y2 - pipe chamfer - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a pipe end chamfer suitable for chamfering the end faces of synthetic resin pipes and other pipes.

When connecting pipes such as synthetic resin pipes, the connecting end surfaces of the pipes are chamfered to facilitate insertion of the pipes.

In this case, a chamfer is usually used in which a plurality of cutters are attached to the base at a constant inclination and equidistant from the rotation axis of the base.

Since such a chamfer cuts the end face of a pipe by input, it is suitable for small-diameter pipes, but cannot be used for large-diameter pipes, for example, pipes with a diameter of several hundred millimeters.

That is, if this type of chamfer is manufactured for a large-diameter pipe, it is too heavy for an operator to operate.

Therefore, the inventor thought of using an electric plane to chamfer pipes.

It has been found that using an electric plane makes cutting easier and can be done in a shorter time.However, with the commercially available electric plane SomaS, the operator has to adjust the chamfer angle etc. while cutting, so a constant chamfer angle is required. is not obtained.

This idea was devised so that an electric planer can be used for chamfering pipes in consideration of the slope.

This invention will be explained below with reference to embodiments of the drawings.

1 is an electrolytic lead body, and a chamfering ruler 4 is detachably attached to the bottom surfaces of a front base 2 and a rear base 3 of this electrolytic lead body 1.

The chamfering ruler 4 has an inclined guide plate 43 attached to attachment plates 42 , 42 erected at the ends of a base plate 41 . A mounting hole 44° 44 is provided for mounting.

This mounting hole 44.44 is made into a long hole, and the inclined guide plate 4
3 is attached to the electrolytic lead body 1 so as to cover the central part of the rotary blade 5, and is movable in the direction of the rotation axis of the rotary blade 5, and on the lower slope side of the inclined guide surface, the extension line thereof The width of the rotating blade that is more exposed can be adjusted.

The angle of the inclined guide surface of the inclined guide plate 43 is set to an angle commensurate with the chamfer angle of the pipe end face.

Reference numeral 6 denotes a stopper for locking the electrolytic lead body 1 to the pipe end surface, and a stopper support rod 61 is inserted and attached to the front base 2 of the electrolytic lead body 1 to adjust the insertion length of the support rod 61. This allows the position of the stopper 6 to be adjusted.

Note that this stopper 6 is connected to the inclined guide plate 43 of the chamfering ruler 4.
installed on the lower slope of the slope.

Next, the manner of use of this pipe chamfer will be explained with reference to FIG. 2.

While rotating the cutter 5 while abutting the inclined guide surface of each inclined guide plate 43 of the chamfering ruler 4 of the pipe chamfer against the outer surface of the end of the pipe 8 and locking the stopper 6 to the end surface of the pipe 8. (3) By rotating the chamfer in the circumferential direction of the pipe 8, the chamfering 81 is sequentially performed.

As described above, the pipe chamfer of this invention is equipped with a chamfering ruler having an inclined guide surface so as to cover the central part of the rotary blade of the electric steel body. The chamfering angle is regulated, and anyone can easily chamfer a relatively large-diameter pipe into a predetermined shape regardless of the quality of the worker. It can also be applied to oval pipes.

In addition, a chamfering ruler having an inclined guide surface is provided movably in the direction of the rotation axis of the rotary blade, and by adjusting its position, the chamfering ruler having an inclined guide surface can be moved on the lower side of the inclined guide surface. The exposed length can be adjusted, thereby making it possible to arbitrarily adjust the chamfer depth.

Furthermore, a stopper is provided, and by locking this stopper surface to the end surface of the pipe, the position of the electric steel body and the pipe can be determined in a fixed manner, and chamfering of a fixed length can be performed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an example of the pipe chamfer of this invention as seen from the bottom, and FIG. 2 is a diagram showing how the pipe chamfer of FIG. 1 is used. 1... Electric steel body, 2... Front base, 3... Rear base, 4... Chamfering ruler, 43... Inclined needle Information board, 5...
・Rotating blade.

Claims (1)

[Scope of utility model registration request] A chamfering ruler having an inclined guide surface so as to cover the central part of the rotary blade of the electrolytic lead body is provided by attaching its substrate to the front base and rear base of the electrolytic lead body, and the chamfering ruler is The exposed length of the rotary blade exposed from an extension line of the lower slope side of the inclined guide surface which is movable in the direction of the rotation axis of the rotary blade is adjustable, and the exposed length of the rotary blade is adjustable. A pipe chamfer characterized in that a stopper is provided on the pipe.