JPH0796331A - Tube flaring device - Google Patents

Abstract

PURPOSE:To rapidly execute the tightening and release the tightening by a clamping part of a tube T, to execute the flaring in a short time, to make the tightening force constant, to execute the stable flaring, and to improve the flaring precision even by the unskilled worker. CONSTITUTION:A tube flaring device consists of a flare cone 15 which is rotated and moved forward/ rearward by a motor, a flaring tool 1 provided with an operation switch 17 of a motor 13, a clamping part 3 provided with a liner 34 to fix the tube T to be flared by driving the flare cone 15 to the prescribed position to the flare cone 15, and a clamping mechanism 2 provided with a cylinder device 4 to open/close the clamping part 3 and a transmitting mechanism 5 to transmit the reciprocating motion of the cylinder device 4 to the clamping part 3. The clamping mechanism 2 is connected to the forward side of the flare cone 15 in the flaring tool 1, and the tube T is tightened or released from tightening by the motion of the cylinder device 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flare processing device used for flaring a pipe end of a pipe such as a refrigerant pipe used in a refrigeration system.

[0002]

2. Description of the Related Art Conventionally, a flare processing device of this kind is provided, for example, as shown in FIGS. 5 and 6, with a flare processing tool A and a detachable device for the flare processing tool A. And a clamp C for fixing the pipe T flared at a predetermined position. Further, in the flare processing tool A, a motor A3 is arranged inside a main body case A2 having a grip portion A1, and a flare cone A4 rotated and moved forward and backward by driving the motor A3 is supported via a support shaft A5. The grip portion A1 is provided with an operation switch A6 for the motor A3, and the grip portion A1
A rechargeable battery A7 for driving the motor A3 is detachably attached to the lower side of the. The operation switch A6 is of a two-stage upper / lower switching type, that is,
A forward operation unit F that drives the motor A3 to rotate the flare cone A4 while advancing toward the clamp portion C side and a reverse operation portion R that retracts the flare cone A4 from the clamp portion C side are vertically integrated. Be prepared for.

Further, the clamp C is provided with a pair of upper and lower clamp bodies C1 and C2 for sandwiching the pipe T, and one side in the longitudinal direction thereof is connected by a pivot shaft C3, whereby the pivot shaft C3 is connected. The respective clamp bodies C1 and C2 can be vertically swung around the center, and a half flared shape with a flare molding surface is provided inside the respective clamp bodies C1 and C2 on the side facing the flare cone A4. While the liners C4 and C4 are detachably attached, the upper clamp body C1 and the lower clamp body C2 are fixed to each other on the other side in the length direction of the upper clamp body C1. C1, C
A screw body C5 for sandwiching the pipe T is provided between the two liners C4 and C5.

When flaring the pipe end of the pipe T, the pipe end of the pipe T is inserted to the position of the liners C4, C4 with the clamp bodies C1, C2 being opened. After that, the screw body C5 is manually screwed to tighten the clamp bodies C1 and C2, so that the pipe T is clamped between the clamp bodies C1 and C2. Thereafter, the forward operation portion F of the operation switch A6 is pressed to operate the flare cone A4 while rotating the flare cone A4 via the motor A3.
The pipe T, which is sandwiched between 1 and C2, is advanced to the pipe end side, and the pipe end is flared by the flare molding surface of each of the liners C4 and C4 to form a flare molding portion.

After the pipe T is flared, the flare cone A4 is moved backward by pushing the backward operating portion R of the operation switch A6, and then the screw body C5 is removed. Each clamp body C is operated by screwing.
1 and C2 are released and the clamp bodies C1 and C1 are released.
By opening C2 around the pivot C3, the flared pipe T can be removed from the clamp bodies C1 and C2.

[0006]

However, in the above flare processing apparatus, when performing flare processing, the pipe T is clamped between the clamp bodies C1 and C2 by manual operation of the screw body C5, and After flare processing, it is necessary to manually operate the screw body C5 to remove the pipe T from each of the clamp bodies C1 and C2. At the time of clamping and releasing the clamp, the screw body C5 is manually screwed each time. Since it is necessary, there is a problem that the flare processing takes time.

Moreover, the pipe T is connected to each of the clamp bodies C1 and C.
When clamped between the two, the clamp bodies C1 and C2 are tightened by the screw body C5.
Since the worker is manually tightening, the tightening force of each of the clamp bodies C1 and C2 against the pipe T is too strong or too weak, and is likely to be unstable, so that the tightening against the pipe T is likely to be unstable. When the applied force is too weak, the tube T moves backward by advancing the flare cone A4, and the flare cone A4
Since the pipe T cannot be subjected to a predetermined flare processing, the flaring accuracy of the pipe T is deteriorated, and when the pipe T is connected to another member through the flare molding portion, the flare molding portion Fluid leakage may occur.

Furthermore, since the flare molding portion formed on the tube T moves the flare cone A4 forward and backward by operating the operation switch A6, the tube T can be operated at the operation timing of the operation switch A6. There is also a problem in that the accuracy of the flare molding portion formed on the surface varies. That is, since it is difficult to confirm the molding end of the flare molding section from the outside by the pushing operation of the reverse operation section R of the operation switch A6, the operator has the flare cone A
There is no choice but to listen to the flare molding sound for the tube T of 4 and to perform the operation after observing an appropriate flare processing time.
Variations in the size of the flare molding portion occur depending on the pushing timing of the reverse operation portion R. As a result, when the pipe T is connected to another member via the flare molding portion, the flare molding portion A fluid leak may occur.

An object of the present invention is to perform flare processing on a pipe end in a short time, moreover, to make uniform clamping of the pipe by the clamp portion, to perform stable flare processing, even for an unskilled worker. It is an object of the present invention to provide a flare processing device for a pipe, which can improve the accuracy of the section.

[0010]

To achieve the above object, the invention according to claim 1 is provided with a flare cone 15 which can be rotated and moved forward and backward by driving a motor, and an operation switch 17 for the motor 13. A flare processing tool 1, a clamp part 3 having a liner 34 for fixing a flare processed pipe by driving the flare cone 15 at a predetermined position with respect to the flare cone 15, and a cylinder device for driving the clamp part 3 to open and close. 4 and a clamp mechanism 2 having a transmission mechanism 5 for transmitting the reciprocating movement of the cylinder device 4 to the clamp portion 3. The clamp mechanism 2 is connected to the front side of the flare cone 15 in the flare processing tool 1. It is a thing.

In the invention according to claim 2, the clamp part 3 is composed of a pair of clamp bodies 31, 32, and the clamp bodies 31, 32, the cylinder 41 of the cylinder device 4 and the cylinder 41 are provided. The transmission mechanism 5, which is a booster mechanism, is interposed between the piston rod 42 and the piston rod 42 that reciprocates.

Further, according to a third aspect of the invention, the motor 1 of the flare processing tool 1 is operated by operating the operation switch 17.
3 is provided with an operation control device 7 for outputting an operation control command, the operation control device 7 is provided with a timer 71, and an operation start command is output to the motor 13 by operating the operation switch 17, and after a certain period of time. The control unit 72 that outputs the operation stop command is provided.

[0013]

In the invention according to claim 1, the clamp mechanism 2 is provided.
The clamp unit 3 is opened via the transmission mechanism 5 by the operation of the cylinder unit 4 provided in the above, and after this opening, the clamp unit 3 is closed via the transmission mechanism 5 by the operation of the cylinder unit 4. Tightening and releasing of the pipe by the clamp portion 3 can be performed in a short time by a simple operation, and the fastening force can be made constant without excess or deficiency.

That is, as described above, since the pipe can be clamped and clamped in the clamp portion 3 by the operation of the cylinder device 4 or the clamp can be released, the clamp portion 3 is opened and closed manually. Tightening and releasing can be performed easily and in a short time as compared with the conventional case. Therefore, flare processing can be efficiently performed, and moreover, a constant tightening force is always applied to the clamp part 3 through the cylinder device 4. Since the clamping force of the pipe by the clamp portion 3 can be kept constant without excess or deficiency, the processing accuracy of flare processing can be improved.

According to the second aspect of the present invention, the clamp portion 3 is composed of a pair of clamp bodies 31 and 32, the clamp bodies 31 and 32, the cylinder 41 of the cylinder device 4, and the cylinder. Since the transmission mechanism 5 composed of a booster mechanism is interposed between the piston rod 42 that reciprocates with respect to 41, the clamping force of the pipe by the clamp bodies 31 and 32 against the input of the cylinder device 4 is increased. Therefore, it is possible to effectively tighten the pipe while reducing the power consumption and improve the processing accuracy of flare processing.

Further, in the invention according to claim 3, the motor 1 of the flare processing tool 1 is operated by operating the operation switch 17.
3 is provided with an operation control device 7 for outputting an operation control command, the operation control device 7 is provided with a timer 71, and an operation start command is output to the motor 13 by operating the operation switch 17, and after a certain period of time. Since the control unit 72 that outputs the operation stop command is provided, the flare processing time by the flare cone 15 can be controlled only by operating the operation switch 17, and thus the constant tightening force by the clamp unit 3 can be controlled. It is possible to prevent variations in the flare molding portion of the pipe in combination with the tightening in the above, and to always form the flare molding portion accurately. It is possible to effectively prevent fluid leakage from the flare molding portion when connecting to the.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIGS. 1 and 2 is arranged in an assembling line of a refrigerating machine to flare a refrigerant pipe. A flare for flaring the end of a refrigerant pipe T mainly made of a copper pipe. It comprises a processing tool 1 and a clamp mechanism 2 having a clamp portion 3 for fixing the pipe T at a predetermined position with respect to the flare processing tool 1 during flare processing by the flare processing tool 1. The flare processing tool 1
Is detachably coupled to the front side of the.

The flare processing tool 1 includes a main body case 12 having a grip portion 11 and a motor 13 arranged therein.
And a flare cone 15 provided on the front side of the motor 13 and provided with a support shaft 14, and a transmission for transmitting the rotational power of the motor 13 to rotate and move the flare cone 15 back and forth through the support shaft 14. The grip 16 is provided with an operation switch 17 for the motor 13, and the lower part of the grip 11 has the motor 1
A rechargeable battery 18 for driving 3 is detachably attached. Further, the flare cone 15 is configured to be eccentrically rotated in a swinging manner around the shaft center of the motor 13 together with the support shaft 14 thereof, and the operation switch 17 is of an upper / lower two-stage switching type. It means that
A start switch 17a and an emergency stop switch 17b for outputting an operation control command to the motor 13 via an operation control device 7 to be described later are provided in a vertically integrated manner.

Further, the clamp mechanism 2 includes a clamp part 3 for fixing the tube T at a predetermined position with respect to the flare cone 15, a cylinder device 4 for driving the clamp part 3 to open and close, and a reciprocating operation of the cylinder device 4. And a transmission mechanism 5 for transmitting to the clamp portion 3.

The clamp part 3 is composed of a pair of upper and lower first and second clamp bodies 31 and 32 for sandwiching the tube T, and one side in the longitudinal direction of these clamp bodies 31 and 32 is interposed by a pivot 33. By connecting them together, the respective clamp bodies 31, 32 can be swung in the vertical direction about the pivot shaft 33, and the side opposite to the flare cone 15 inside the respective clamp bodies 31, 32. A liner 34, 34 having a flare molding surface and having a half-divided shape is detachably attached to the. A plurality of types of liners 34 having different molding surfaces are prepared in advance, and any liner 34 may be attached to the clamp bodies 31, 32 according to the pipe diameter of the pipe T.
I am trying to install it on.

Further, since the cylinder device 4 is mainly an air cylinder device, the cylinder 4
1 and a piston rod 42 that is reciprocated by supplying and discharging pressurized air to and from the cylinder 41. The cylinder 41 and the piston rod 42 and the clamp bodies 3 are provided.
A transmission mechanism 5 described below is interposed between the transmission mechanism 1 and 32. Further, although a hydraulic cylinder may be used as the cylinder device 4, by using an air cylinder, an air compressor which is normally provided in a factory or the like can be easily used as a pressure fluid source, and the cost is low. It also makes handling easier.

The transmission mechanism 5 of the embodiment shown in FIG. 1 uses a transmission mechanism composed of the toggle joint type booster mechanism. That is, the mounting piece 50 is fixed to the cylinder 41 of the cylinder device 4, and the first link 51 is connected to the mounting piece 50 via the pin 61. The clamp shaft 31 is fixed to the one clamp body 31 by the fixing screw 60, and the pivot shaft 33 is supported by the support piece 53 extending from the first link 51. Further, the piston rod 42 of the cylinder device 4 has a bell crank type. Second link 52 is connected via a pin 68, and a connecting link 57 is interposed between the bent portion of the second link 52 and the first link 51, and is connected by pins 66 and 67. First link 51
A bell crank type third link 55 having a long rod portion 55a and a short rod portion 55b is supported by a pin 64 at an intermediate portion of the second link 5 at the bent portion of the third link 55.
2 is connected via a pin 65, and further, the tip of the long rod 55a of the third link 55 is located near the second clamp body 32 of the clamp portion 3 so that the clamp body 32 A transmission link 5 is constructed by interposing a connection link 56 between the tip end portion and the pins 62 and 63.

In the above construction, however, the first and second links 51 and 52 are actuated in the opening direction by operating the piston rod 42 of the cylinder device 4 in the advancing direction, and as a result, the connecting link. 57 moves upright from the state shown in FIG. 1 and the third link 5
5 swings clockwise around the pin 64 in FIG. 1 to open the clamp bodies 31 and 32 of the clamp portion 3 and tighten the pipe T through the liners 34 and 34. Is released, and conversely, by operating the piston rod 42 in the retracting direction, the clamp bodies 31, 32 are reversely operated.
Is closed and the tube T can be tightened through the liners 34, 34.

By the way, when the cylinder diameter of the cylinder device 4 is 20Φ and the air pressure is 4 kg / cm ² and the piston rod 42 is moved in and out, the force of the piston rod 42 is 12 kg. By the boosting action of each of the links 51, 52, 55, the clamp body 3
It is transmitted to the liners 34, 34 by 1, 32, and the tightening force of the pipe T by the liners 34, 34 can be set to 80 kg.

Further, the clamp mechanism 2 configured as described above is detachably coupled to the flare processing tool 1. This coupling structure is one of the clamp bodies 31 and 32, as is known. Is provided with a cylindrical body having a plurality of engaging projections on the outer peripheral surface thereof, and a receiving hole capable of receiving the cylindrical body is provided on the front surface side of the main body case 12 in the flare processing tool 1, and the periphery of the receiving hole Forming a hole into which the engaging protrusion can be inserted, and rotating the clamp mechanism 2 side with the engaging protrusion inserted inward from the hole;
By engaging the engaging projection with the non-hole portion of the receiving hole, the flare processing tool 1 is detachably coupled. The connecting structure is not particularly limited, and one clamp body may be integrally connected. However, when the clamp bodies are detachably connected as described above, they are convenient for maintenance and inspection.

Further, in FIG. 2, 19 is the tube T
Is a stopper for positioning the pipe end of the above in a predetermined position with respect to the flare cone 15.

Next, the operation of flaring the tube end of the tube T with the above flaring apparatus will be described. First, high pressure air is supplied to the head side of the cylinder 41 of the cylinder device 4 provided in the clamp mechanism 2 to move the piston rod 42 downward in FIG. Works like. That is, when the piston rod 42 advances, the second link 52 is moved downward while the connecting link 57 swings in the upright direction, and accordingly, the bent portion of the third link 55 is changed to the cylinder. Pulled to the device 4 side,
The long rod portion 55a of the third link 55 swings clockwise in FIG. 1 around the pin 64, and the connection link 56 is moved downward in conjunction with the long rod portion 55a. The second clamp body 32 of the clamp portion 3 swings downward around the pivot shaft 33, and the clamp portion 3 opens.

Then, with the clamp bodies 31 and 32 opened, the pipe T is attached to the stopper 1 at its pipe end.
9, the tube T is positioned by the stopper 19 and then the high pressure air is supplied to the rod side while discharging the high pressure air from the head side of the cylinder 41. Then, by moving the piston rod 42 backward, the second link 52
Moves upward while the connecting link 57 falls and swings, and accordingly, the third link 55 swings counterclockwise in FIG. 1, and the swinging of the third link 55 causes the third link 55 to swing.
The connecting link 5 is interlocked with the long rod portion 55a of the link 55.
6 is moved to the upper side, and by this movement, the second clamp body 32 swings upward about the pivot shaft 33, and the clamp bodies 31 and 32 are closed to close the pipe T. Is tightened.

At this time, since the transmission mechanism 5 composed of the booster mechanism is used, as described above, the output on the side of each of the clamp bodies 31 and 32 with respect to the input of the cylinder device 4 can be increased. The tightening force of the pipe T between the clamp bodies 31 and 32 can be increased with a small cylinder input, so that the power consumption can be reduced and the tightening of the pipe T can be effectively performed, and the processing accuracy of flare processing can be improved. .

As described above, by the operation of the cylinder device 4, the clamp bodies 31, 3 are transmitted via the transmission mechanism 5.
2 is opened and closed to tighten or release the tightening. Therefore, as compared with the conventional case where the clamp bodies 31 and 32 are opened and closed manually, the work of tightening and releasing the tightening of the pipe T is performed. The time can be shortened, and therefore flare processing can be performed in a short time.
Since the pipe T is clamped by the clamp bodies 31 and 32 via the clamps, the clamping force can be made constant without excess or deficiency, and therefore the processing accuracy can be improved.

Further, in the above flare processing apparatus, the operation control of the motor 13 may be performed manually by the operation switch, but as shown in FIG. 3, the flare is operated by the operation switch 17. It is preferable to provide an operation control device 7 having a sequence circuit for outputting an operation control command to the motor 13 of the processing tool 1. In FIG. 3, 9 is
An electromagnetic switching valve 9 for switching air, which is provided in the middle of the pipe between the cylinder 41 of the cylinder device 4 and the air compressor 8. The electromagnetic switching valve 9 is an output command from the control section 72 of the operation control device 7. The high pressure air is supplied to and discharged from the head side and the rod side of the cylinder 41. Further, the entire flare processing tool 1 is adapted to be hung on the ceiling via a suspending tool 10 provided with a balancer 10a.

As described above, when the operation control device is provided, the device 7 is provided with the timer 71 and the start switch 17a of the operation switch 17 is pushed to operate the electromagnetic switching valve 9. Outputs a tightening operation command for tightening the tube T by the clamp portion 3, and outputs an operation start command to the motor 13 after tightening the tube T to perform flare processing set by the timer 71. After a set time for ending the operation is output, an operation stop command is output to the motor 13, and then the electromagnetic switching valve 9
Is provided to output a tightening release operation command for releasing the tightening of the pipe T by the clamp portion 3 by operating the.

However, when flare processing is performed using the operation control device 7, only by pressing the start switch 17a of the operation switch 17, first, the electromagnetic switching valve 9 operates to operate the cylinder device. High pressure air is supplied to the rod side of the pipe T by the clamp portion 3.
Then, an operation start command is output to the motor 13, the flare cone 15 is advanced by the command output while being rotated, and flare processing for the pipe T is started. When the operating time is counted in, and when the predetermined time set by the timer 71 has elapsed, the forward movement is stopped, only the fixed time rotation is performed, and the flare processing is completed. Then, after the elapse of this fixed time, the backward command is output, and the flare cone 15 moves backward,
An operation stop command is output from the control unit 72 to the motor 13, and then the electromagnetic switching valve 9 operates to supply high-pressure air to the head side of the cylinder device to tighten the pipe T by the clamp unit 3. Is released. Therefore, by providing the operation control device 7 described above, it is possible to automatically tighten and release the pipe T by the clamp portion 3 and control the flare processing time by the flare cone 15, and as a result, the entire flare processing is automatically performed. Can be done on a regular basis.

That is, as shown in FIG. 4, when the start switch 17a of the operation switch 17 is operated, the clamp start of the pipe T is performed by the clamp portion 3, and then the operation start command of the motor 13 is issued. Is output and the flare cone 15 is output.
Starts to move forward while rotating, and from the start of this operation, the timer 71 counts and the timer 71
Flare processing is performed under time management by
Since the fastening of the pipe T is released by the clamp portion 3 after the flare processing, the flare processing can be automatically performed by the flare cone 15, and the flare processing can be performed without being affected by the shift of the switch timing. Therefore, the variation in accuracy due to the shift of the switch timing can be eliminated, and in combination with the tightening with a constant tightening force by the clamp portion 3, the working accuracy can be effectively improved. Therefore, when the pipe T is connected to another member via the flare molding portion T1, it is possible to reliably prevent fluid leakage from the flare molding portion T1.

[0035]

As described above, according to the first aspect of the invention, the flare cone 15 rotated and moved forward and backward by driving the motor 13 and the operation switch 1 for the motor 13 are described.
Flare processing tool 1 provided with 7, and the flare cone 15
The flare cone 15
On the other hand, a clamp having a clamp part 3 having a liner 34 that is fixed at a predetermined position, a cylinder device 4 that drives the clamp part 3 to open and close, and a transmission mechanism 5 that transmits the reciprocating motion of the cylinder device 4 to the clamp part 3. Since the clamping mechanism 2 is coupled to the front side of the flare cone 15 in the flare processing tool 1, the clamping device 3 is operated by the operation of the cylinder device 4.
Therefore, compared with the conventional case in which the clamp portion 3 is opened and closed manually, it can be efficiently performed without requiring troublesome tightening and releasing operations. The pipe can be flared in a short time, and moreover, since the clamp portion 3 is closed and tightened through the cylinder device 4, a constant tightening force can be obtained without excess or deficiency. In addition, stable flare processing can be performed, and even an inexperienced worker can perform high-precision processing. Further, according to the invention of claim 2, the clamp portion 3 is provided.
Is composed of a pair of clamp bodies 31, 32, and between the clamp bodies 31, 32 and the cylinder 41 of the cylinder device 4 and the piston rod 42 that reciprocates with respect to the cylinder 41, a booster mechanism is provided. Since the transmission mechanism 5 is interposed, the tightening force of the tube T by the clamp bodies 31 and 32 with respect to the input of the cylinder device 4 can be increased. Therefore, the power consumption can be reduced and the tube can be tightened effectively. The processing accuracy of flare processing can be improved.

Further, according to the invention of claim 3, an operation control device 7 for outputting an operation control command to the motor 13 of the flare processing tool 1 by operating the operation switch 17 is provided, and this operation control device 7 is provided. Is provided with a timer 71 and outputs a driving start command to the motor 13 by operating the driving switch 17, and a control unit 72 which outputs a driving stop command after a predetermined time, so that the driving switch 17 is only operated. Thus, the flare processing time by the flare cone 15 can be controlled, and therefore, in combination with the tightening by the clamp part 3 with a constant tightening force, it is possible to prevent the flare molding part of the tube from being varied. , The processing accuracy of the flare molding portion can be improved, and when the pipe is connected to another member through the flare molding portion, fluid leakage may occur from the flare molding portion. It can be prevented.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a flare processing device of the present invention.

FIG. 2 is a side view in which a part of the flare processing device is cut away.

FIG. 3 is a control block diagram of a flare processing device using an operation control device.

FIG. 4 is a time chart showing operational control of a flare cone by a timer.

FIG. 5 is a front view showing a conventional flare processing device.

FIG. 6 is a side view thereof.

[Explanation of symbols]

 1 flare processing tool 13 motor 15 flare cone 17 operation switch 2 clamp mechanism 3 clamp part 31, 32 clamp body 34 liner 4 cylinder device 41 cylinder 42 piston rod 5 transmission mechanism 7 operation control device 71 timer 72 control part

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location B30B 15/00 D 8718-4E

Claims (3)

[Claims] 1. A flare processing tool (1) comprising a flare cone (15) which can be rotated and moved forward and backward by a motor drive, and an operation switch (17) for the motor (13); and the flare cone (15). ) A clamp part (3) having a liner (34) for fixing the pipe flared by the drive of (1) to the flare cone (15) at a predetermined position, and a cylinder device (3) for driving the clamp part (3) to open and close. 4) and a clamp mechanism (2) having a transmission mechanism (5) for transmitting the reciprocating motion of the cylinder device (4) to the clamp part (3), and the clamp mechanism (2) is connected to the flare. A flare processing device for a pipe, which is connected to a front side of a flare cone (15) in a processing tool (1). 2. The clamp part (3) is composed of a pair of clamp bodies (31) (32).
(32) and the cylinder (4) of the cylinder device (4)
The flare processing apparatus for a pipe according to claim 1, wherein a transmission mechanism (5), which is a booster mechanism, is interposed between 1) and the piston rod (42) that reciprocates with respect to the cylinder (41). 3. An operation control device (7) for outputting an operation control command to a motor (13) of a flare processing tool (1) by operating an operation switch (17), and the operation control device (7).
Has a timer (71), and the operation switch (1
The pipe flare processing device according to claim 1, further comprising a control unit (72) that outputs an operation start command to the motor (13) by the operation of 7) and outputs an operation stop command after a predetermined time.