JPH057125B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to the configuration of an apparatus for cutting or beveling pipes.

``Prior Art'' Conventionally, bevelling devices for cutting or beveling pipes have been constructed by fixing the pipe in a vise or the like, and equipping it with a beveling or cutting blade that rotates around the outer circumference of the pipe. .

The blade constitutes a rotating body that is integrated with an electric motor that drives the blade, and this rotating body is configured to rotate along the outer periphery of the pipe.

For this reason, since the rotary body is equipped with an electric motor, it becomes considerably heavy, and as the diameter of the pipe to be processed increases, the output of the electric motor also increases, resulting in an even greater increase in weight.

For this reason, it is difficult to manually rotate the rotating portion of the large beveling device, and it has been desired to configure the large bevel device so that the rotating portion is rotated by an electric motor.

When the rotating body becomes large like this, machining work becomes easier if the rotating body is rotated by an electric motor, and when the blade is set, the rotating body rotates around the outer circumference of the pipe and beveling can be performed automatically. Ta.

``Problems to be Solved by the Invention'' However, due to the nature of the bevelling device, when cutting the pipe, the debris generated tends to enter various places.
When a rotating body is rotated by an electric motor, even if debris gets into the rotating parts, the rotating parts are ignored and the gears are sometimes damaged.

Furthermore, even when the diameter of the pipe increases and the pipe is configured to rotate automatically, there are cases in which it is preferable to perform delicate machining operations manually.

The present invention has been made in view of these circumstances, and is configured so that a manual rotation device can be used in a beveling device that automatically rotates a rotating body to perform beveling and other processing. The purpose is to provide a bevel device that can be used effectively for delicate machining or in the unlikely event of failure.

"Means for Solving the Problems" The present invention includes a rotating body that includes a blade and an electric motor that drives the blade, which is equipped with a worm wheel, and a pinion gear that rotates the worm wheel. An electric motor is connected to the pinion gear via a clutch, and the clutch disconnects the electric motor from the pinion gear, and the pinion gear is provided with a handle so that it can be rotated manually. The problem is solved by

"Operation" When the rotating body is rotated by an electric motor, it can automatically perform beveling or cutting along the outer periphery of the pipe.

In the unlikely event that there is a malfunction or delicate operation is required and you wish to manually feed the bevel, disconnect the electric motor from the pinion gear using the clutch and rotate the pinion gear manually using the handle. can be done.

By manually rotating the pinion gear in this way, if debris from cutting enters the gear part such as the worm wheel, the load will appear on the handle, making it easy to detect failures and prevent damage beforehand. can be avoided.

Since a clutch is interposed between the pinion gear and the electric motor, it is easy to switch between automatic and manual mode, and since the worm wheel is driven by the pinion gear, the rotating body can be easily rotated even manually. In addition, large rotational force can be easily obtained and manual operation can be performed easily.

``Embodiment'' The present invention will be described based on an embodiment shown in the drawings. FIG. 1 is a front view of the bevel device of the present invention, and FIG. 2 is a side sectional view and a side sectional view thereof. FIG. 3 is a vertical sectional view of the main part.

In FIG. 1, the bevel device is constructed so that the entire bevel can be installed on the floor by means of a stand 1.
A vise 2 is provided on top of the vise 2.
It is configured such that the pipe 3 can be fixed to.

A rotating body 5 having a blade 4 is provided so as to rotate along the outer periphery of the pipe 3 fixed to the vise 2. The rotating body 5 is configured to rotate the blade 4 by an electric motor 6. It is constructed such that it can be operated by a handle 7 so as to cause the blade 4 to act on the pipe 3.

Further, a manual handle 8 is provided on the back surface of the rotating body 5, and the rotating body 5 is configured to rotate when the handle 8 is rotated.

In FIG. 2, the bevel device is configured such that a rotating body 5 is rotated by a driving device 9 fixed to a table 1, and a worm wheel is connected between the driving device 9 and the rotating body 5. 12 and a pinion gear 11 are employed.

The worm wheel 12 is provided on the rotating body 5 side, and the pinion gear 11 for driving the worm wheel 12 is provided on the driving body 9 side and is configured to be rotated by the electric motor 10. .

In FIG. 3, a one-way clutch 14 is interposed as a clutch together with a reduction gear 13 between the pinion gear 11 and the electric motor 10, and is configured so that the pinion gear 11 is rotated when the electric motor 10 rotates. and when the pinion gear 11 rotates, the electric motor 1
It is configured so that it can be disconnected from 0.

The rotation of the electric motor 10 is controlled by a reduction gear 13.
The speed is further reduced by the pinion gear 11.
The rotating body 5 is configured to be rotated at a low speed by being greatly decelerated by the worm wheel 12 and the worm wheel 12.

Further, a manual handle 8 is provided at the end of the pinion gear 11 opposite to the end where the one-way clutch 14 is provided, so that the pinion gear 11 can be manually rotated. has been done.

In such a configuration, the bevel device
is fixed to the vise 2, the blade 4 is operated by the handle 7, and the rotating body 5 is rotated so that the pipe 3 is beveled or cut by the blade 4.

Since the rotating body 5 is configured to be automatically rotated by the electric motor 10, it can be operated automatically.

However, if the automatic system malfunctions or if you want to perform delicate beveling operations,
When the electric motor 10 is stopped and the handle 8 is rotated as desired, the handle 8 is connected to the pinion gear 1.
Since the worm wheel 12 is configured to rotate the worm wheel 12, the worm wheel 12 rotates slowly and can perform beveling.

In this way, by manually rotating the rotary body 5 using the handle 8, it is possible to easily bevel or cut the pipe 3 in the desired condition, such as when the entire circumference of the pipe 3 is not beveled. It is extremely effective when processing by hand along the

Further, even in the unlikely event that the rotating body 5 stops rotating due to a failure of the drive device 9, it can be effectively used, which is convenient.

In addition, the reduction ratio of the reduction gear 13 is increased so that the rotation speed of the electric motor 1 is higher than that which can be manually operated by the handle 8.
If the rotation speed based on 0 is set low, the motor 1
When the rotating body 5 is automatically rotated by 0, it is possible to manually operate the rotating body 5 using the handle so that the rotating body 5 rotates faster than automatically.

This configuration is convenient because it is easy to manually increase the machining speed during automatic operation.

In such a configuration, the load on the blade 4 is large and the rotating body 5
If the rotation cannot be done manually, automatic is fine, but if the load is light and you want to increase the machining speed, it is easy to add manual operation to increase the machining speed while in automatic mode, making it extremely easy to operate. get well.

In addition, in the event that debris generated by beveling the pipe 3 enters parts such as the reduction gear 13 and causes a failure, the rotation of the handle 8 for manual operation becomes heavy, making it easier to cause the failure. This allows you to prevent damage caused by debris from getting caught.

``Effects of the Invention'' As described above, according to the present invention, manual operation can be easily performed in addition to automatic operation, delicate machining can be easily performed, or even manual machining can be performed in the unlikely event of a failure, and various It can be applied to many types of pipes without compromising workability, and its effects are extremely significant industrially.

[Brief explanation of the drawing]

FIG. 1 is a front view of the beveling device of the present invention, FIG. 2 is a side sectional view thereof, and FIG. 3 is a longitudinal sectional view of the main part thereof. 2... Vice, 3... Pipe, 4... Blade, 5...
...Rotating body, 8...Handle, 10...Electric motor, 1
1...pinion gear, 12...worm wheel, 14...one-way clutch.

Claims (1)

[Claims] 1. In a bevel device that performs beveling or cutting by rotating a blade along the outer circumference of a fixed pipe, the blade and the electric motor that drives the blade are integrated to form a rotating body, and this rotating body is equipped with a worm wheel. , a pinion gear for rotating the worm wheel, an electric motor is connected to the pinion gear via a clutch, and the clutch disconnects the electric motor from the pinion gear. A bevel device characterized by being equipped with a handle and configured to be manually rotated.