JPH0714564B2 - Pipe material cutting device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a pipe material cutting device that presses a disc-shaped cutter against a pipe material, revolves around the pipe material, and cuts.

[Prior Art] Conventionally, various things are known to cut a pipe material by a disk type cutter. Further, as a means for reducing burrs generated at the time of cutting, as disclosed in JP-A-62-259712, a clamping device for clamping a pipe material is provided on both sides of a cutting position for cutting with a disc type cutter,
It has been proposed to pull both of these clamp mechanisms in a direction in which they are separated from each other when cutting.

[Problems to be Solved by the Invention] However, in such a conventional device, although the burr can be reduced, the pipe material to be cut cannot be clamped unless it is at least longer than the length between the clamp mechanisms. In other words, if one long pipe is cut into pipes of a predetermined length one after another, and if the length of the remaining pipe is shorter than the distance between the clamp mechanisms, the pipe cannot be cut any more. However, there was a problem that the yield was not always sufficient because the pipe material was disposed of as a scrap material.

Therefore, the present invention aims to solve the above problems,
Another object of the present invention is to provide a pipe material cutting device which prevents burr formation and improves the yield.

[Means for Solving the Problems] In order to achieve the above object, the present invention has the following configurations as means for solving the problems. That is, as illustrated in FIG. 1, in a pipe material cutting device that moves the disc cutter M1 toward the center in the radial direction of the pipe material M2 and revolves around the pipe material M2 to cut the pipe material M2, A predetermined amount is supplied in the axial direction, the pipe material M2 is supplied to the cutting location by the supply mechanism M3 that holds the position, and the clamping mechanism M4 that clamps the pipe material M2 is the supply mechanism M3 and the cutting location. The clamp mechanism M4 is mounted on a moving base which is provided on the opposite side and is slidably supported in the axial direction of the pipe material M3, and the moving base is urged toward the cutting position and abutted against the stopper. While having a moving mechanism M5 for holding at a predetermined position, further, a moving amount detecting means M6 for detecting the moving amount in the radial direction of the disk type cutter M1, and the disk type cutter M1 by the moving amount detecting means M6. To the pipe material M2 When it is detected that a predetermined amount of cut is made, the position holding by the supply mechanism M3 is released, and the biasing by the moving mechanism M5 is released, so that the clamp mechanism M4 is slidable. That is the configuration of a pipe material cutting device characterized by including M7.

[Operation] In the pipe material cutting device having the above configuration, the supply mechanism M3 is
A predetermined amount of M2 is supplied in the axial direction and held at that position. In addition, the moving mechanism M5 urges the moving table toward the cutting position and abuts the stopper, while the clamping mechanism M4
Is held at a predetermined position, and the clamp mechanism M4 clamps the pipe material M2. Then, the disc-type cutter M1 is moved toward the center in the radial direction of the pipe material and is revolved around the pipe material M2 to start cutting. At this time, the moving amount detecting means M6
Detects the radial movement of the disc cutter M1,
When the cutting control means M7 detects that the disc type cutter M1 has cut into the pipe material M2 by a predetermined amount by the movement amount detection means M6, it releases the position holding by the supply mechanism M3 and urges by the movement mechanism M5. It is released so that the pipe material M2 can be moved in its axial direction. Furthermore, the disc type cutter M1 is a pipe material.
The pipe material M2 is cut while revolving around M2, and the pipe material 2 moves in the axial direction in accordance with the cut of the disk cutter M1.

Embodiments Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 2 is a schematic layout diagram of a pipe material cutting device according to an embodiment of the present invention. Reference numeral 1 is a disk-type cutter having a cutting edge 1a (see FIG. 9) having a V-shaped cross section formed along a disk-shaped circumference. In this embodiment, a known cutting tool used for cutting a pipe material 2 Is. Further, in the present embodiment, the pipe material 2 has a diameter of
Although it is a steel pipe with 101,6 mm and a wall thickness of 1.2 mm, it is not limited to this,
Aluminum pipe or the like may be used.

As shown in FIG. 3, the disc type cutter 1 is rotatably supported by a slide base 4, and the slide base 4 has a face plate 6
It is slidably fitted in the T groove 8 formed in the radial direction. This face plate 6 is orthogonal to the axial direction of the pipe material 2 and
Are provided so that they can penetrate the face plate 6. A groove 4a having a rectangular cross section is formed on the slide base 4 on the face plate 6 side. A sliding ring 10 is fitted on the outer circumference of the face plate 6 so as to be slidable in the axial direction, and a groove 12 having a rectangular cross section is formed on the inner circumference of the sliding ring 10 over the entire inner circumference. There is.
A lever 14 is rotatably supported on the face plate 6, and one end of the lever 14 is provided in the groove 4a of the slide base 4.
, And the other end is engaged with the groove 12 of the sliding ring 10.

On the other hand, a balance weight 18 is slidably fitted to the face plate 6 in a T groove 16 formed in a radial direction of the face plate 6 so as to correspond to the slide base 4. This balance weight 18 face plate 6
A groove 18a having a rectangular cross section is formed on the side, and one end of a lever 20 swingably supported by the face plate 6 is engaged with the groove 20a.
The other end of is engaged with the groove 12 of the sliding ring 10. When the sliding ring 10 is slid to the right in FIG. 3, the levers 14 and 20 are swung so that the sliding base 4 and the balance weight 18 both slide toward the pipe material 2 and the surface plate 6 The wheel balance is maintained at.

In addition, the face plate 6 includes a pair of bearings 2 in the housing 22.
It is rotatably supported around the guide hole 23 by 4,26. The guide hole 23 is formed to be slightly larger than the outer diameter of the pipe member 2 so that the pipe member 2 can be inserted while being guided. A gear portion 28 is formed on the outer periphery of the face plate 6, and a pinion gear 34 rotatably supported in the housing 22 by a pair of bearings 30 and 32 is meshed with the gear portion 28. There is. The pinion gear 34 is rotatably driven by a revolution motor 36 fixed to the housing 22 via a belt 38.

Further, the housing 22 has a bearing 40 and an operating shaft 42.
Is rotatably and axially movably supported with its axial direction parallel to the pipe member 2, and the tip of the operating shaft 42 is fixed to the sliding ring 10. Also, the operating axis
A screw hole 44 is formed at the rear end of the shaft 42 in the axial direction, and a screw shaft 46 is screwed into the screw hole 44. Screw shaft
The pair of bearings 48, 50 is rotatably mounted on the housing 22 and is restricted so as not to move in the axial direction thereof. And the screw shaft 46 is a housing
A cutting motor 52 attached to 22 is rotatably driven via a belt 54. Further, the rotation amount of the cutting motor 52 can be detected by the cutting encoder 58 via the belt 56, and the cutting mechanism 60 is configured by the above-mentioned members.

On the other hand, as shown in FIG. 2, two supply rollers 62 and 64 having V grooves formed on the outer circumferences of both sides of the pipe material 2 inserted into the guide holes 23 of the cutting mechanism 60 and two supply rollers 62 and 64, respectively. Guide rollers 66 and 68 are provided with the tube material 2 interposed therebetween. The supply rollers 62, 64 and the guide rollers 66, 68 are rotatably supported by the swing arms 70 to 73 about an axis orthogonal to the axial direction of the pipe material 2. Then, each swing arm 70
The members to 73 swing about an axis orthogonal to the axial direction of the pipe material 2 so that the supply material 62, 64 and the guide rollers 66, 68 can hold the pipe material 2 therebetween. Further, both supply rollers 62, 64 are configured to be rotationally driven by a feed motor 76 via a belt 74.

A pair of measuring rollers 80, 82 are provided near the cutting mechanism 60 on both sides of the pipe material 2 with the pipe material 2 interposed therebetween.
Both measuring rollers 80, 82 are rotatably supported on swing arms 84, 86 about an axis orthogonal to the axial direction of the pipe material 2. The swing arms 84 and 86 swing around an axis orthogonal to the axial direction of the pipe material 2, and the measuring rollers 80 and 82 can hold the pipe material 2 therebetween. Moreover, the rotation of one of the measuring rollers 80 is transmitted to the feeding encoder 90 via the belt 88 so that the number of rotations can be detected. The number of revolutions of the measuring roller 80 corresponds to the supply amount of the pipe material 2 supplied by rotating the supply rollers 62 and 64, so that the feed encoder 90 can detect the supply amount of the pipe material 2. ing. Each of these rollers 62,64,66,6
8, swinging arms 70 to 73, belt 74, feed motor 76, measuring rollers 80, 82, swinging arms 86, 88, feed encoder 90, a supply mechanism 78 by an electronic control circuit 150 described later.
Is configured.

On the opposite side of the disc type cutter 1 where the supply mechanism 78 is provided, a pair of jaws 92, 94 having semi-circular grooves having substantially the same diameter as the outer diameter of the pipe material 2 are provided. As shown in FIG. 5, both jaws 92 and 94 are fixed to the left and right clampers 96 and 98, respectively.
00 is slidably supported in a direction orthogonal to the axial direction of the pipe material 2. Then, in the clamp body 100, the cylinder 1
02 is attached, and the cylinder 102 has a shaft 104.
Is connected to the left clamper 96 via.

A lever 105 is swingably supported on the clamp body 100, and one end of the lever 105 is engaged with the shaft 104 so as to swing. The other end of the lever 105 is engaged with the clamp body 100 by a pair of bearings 106, 108, and a connecting shaft 110 supported so as to be slidable parallel to the sliding direction of the left and right clampers 96, 98.
The other end of the connecting shaft 110 is connected to the right clamper 98 via the connecting member 112, and by the swinging of the lever 105, the connecting shaft 110 and the connecting member 112 are used to move in the opposite direction to the left clamper 96. In addition, the right clamper 98 is configured to slide. These jaws 92,94, left and right clamps 96,
98, clamp body 100, cylinder 102, shaft 104, lever 105, bearings 106, 108, connecting shaft 110, connecting member 1
A crimp mechanism 114 is constituted by 12.

The clamp body 100 of the clamp mechanism 114 is placed on the moving table 116, and a pair of linear motion bearings 118 and 120 are attached to the back side of the moving table 116. A pair of rails 124, 126 are laid on the apparatus main body 122 along the axial direction of the pipe material 2, and the linear motion bearings 118, 120 are fitted to the rails 124, 126 to move the moving table 116 along the rails 124, 126. It can be moved.

Further, a rod 130 of a moving cylinder 128 mounted on the apparatus main body 122 is connected to the moving table 116. Further, a moving side stopper 132 is fixed to the back side of the moving table 116, and a fixed side stopper 134 corresponding to the moving side stopper 132 is fixed to the apparatus main body 122. When the movable stopper 132 abuts on the fixed stopper 134, the movable table 11 is moved at a predetermined position keeping a predetermined distance from the disk cutter 1.
The movement of the disk cutter 6 in the direction of approaching the disk cutter 1 is restricted. A moving mechanism 136 is configured by the moving table 116, the linear motion bearings 118 and 120, the rails 124 and 126, the moving cylinder 128, the moving side stopper 132, and the fixed side stopper 134.

As shown in FIG. 6, compressed air is supplied to and controlled by the above-described clamping cylinder 102 and moving cylinder 128. Clamp cylinder 102
Are connected to the air source 140 via a clamp control valve 142. The clamp control valve 142 has a first position 142a that supplies compressed air from the air source 140 to the push side of the clamp cylinder 102 when a control signal is input, and an air source 140 when the control signal is not input. Second position 142b for supplying compressed air of the compressed air to the pulling side of the clamping cylinder 102
And have.

Further, the moving cylinder 128 is connected to the air source 140 via a moving control valve 144. This transfer control valve 144
When a control signal is input, the supply of compressed air to the moving cylinder 128 is stopped to communicate with the atmosphere, and an external force is applied to the rod.
When the control signal is not input, the first position 144a that allows the rod 130 to freely move to the pulling side when it joins the 130, and the compressed air from the air source 140 pushes the moving cylinder 128 unless the control signal is input. And a second position 144b for supplying to.

Next, the electric system of this embodiment will be described with reference to the block diagram shown in FIG. This device is driven and controlled by an electronic control circuit 150, and this electronic control circuit 150 is a well-known CPU 15
2. The ROM 154 and the RAM 156 are configured as the center of a logical operation circuit, and an input / output circuit 158 for inputting / outputting with an external motor or the like is connected to each other via a common bus 160.

The CPU 152 inputs the signals from the cutting encoder 58 and the feed encoder 90 via the input / output circuit 158. Based on this signal and the data in the ROM 154 and RAM 156, the CPU 152 causes the motors to operate via the input / output circuit 158. The drive signals are output to the control valves 36, 52, 76 and the clamp control valves 142, 144 to control each mechanism.

Next, the processing performed in the electronic control circuit 150 described above will be described with reference to the flowcharts shown in FIGS. 7 and 8.

First, the pipe material 2 is placed between the supply rollers 62, 64 and the guide rollers 66, 68, the swing arms 70 to 73 are swung, and the pipe materials 2 are made by the supply rollers 62, 64 and the guide rollers 66, 68. To pinch. Similarly, the swing arms 84 and 86 are swung so that the pipe material 2 is sandwiched by the measuring rollers 80 and 82.

In the present embodiment, the pipe material 2 is previously drawn from a keyboard or the like (not shown).
, The outer diameter of the pipe material 2, the wall thickness t, the cutting length, etc. are set. Then, when the first cutting is started, the pipe material 2 is set at a predetermined position set in advance. Then, a drive current is supplied to the feed motor 76 via the input / output circuit 158, the feed motor 76 is rotationally driven, and the feed rollers 62, 64 are rotated via the belt 74. This supply roller 62, 64
The rotation of the pipe material 2 supplies the pipe material 2 toward the cutting mechanism 60. At this time, the measuring roller 80 is rotated along with the supply of the pipe material 2, and the rotation is transmitted to the feed encoder 90 via the belt 88.

Next, the supply control process shown in FIG. 7 is executed, the rotation of the measuring roller 80 accompanying the supply of the pipe material 2 is detected by the feed encoder 90, and the supply amount of the pipe material 2 is detected from the rotation speed. (Step 170). Then, it is determined whether or not the pipe material 2 is at the target position based on the supplied amount (step 180). That is, it is determined whether or not the tip of the pipe member 2 is projected from the disc-shaped cutter 1 by a preset cutting length based on the supply amount detected by the feed encoder 90. When the target position is not reached, the feed motor 76 is rotationally driven until the target position is reached (S190), and when the target position is reached, the rotational drive of the feed motor 76 is temporarily stopped (S195).

This supply control processing is interrupted at predetermined time intervals, and once the pipe material 2 is supplied to the target position, the pipe material 2 is moved in the axial direction by some external force, and the pipe material 2 is moved from the target position to a predetermined allowable amount or more. If it shifts to, the processing of step 190 is executed. As a result, the feed motor 76 is rotationally driven to move the pipe material 2 to the target position, and the pipe material 2 is always held at the target position.

On the other hand, when the pipe material 2 is supplied to the target position by the execution of the supply control process, the cutting control process shown in FIG. 8 is executed.

First, compressed air is supplied from the air source 140 to the push side of the moving cylinder 128 via the moving control valve 144 without inputting a control signal to the moving control valve 144. Then, the moving cylinder 128 is driven to the push side and moves the moving table 116 toward the disc type cutter 1. By this move,
In the state where the moving side stopper 132 hits the fixed side stopper 134 and is urged by the moving cylinder 128 in the direction of the disc cutter 1, the movement of the moving base 116 is restricted and the clamp mechanism 114 is stopped at a predetermined position. (Step 200).

Next, a control signal is output to the clamp control valve 142 to output the first signal.
By switching to the position 142a, the clamping cylinder 102 is driven to the push side. As a result, the left clamper 96 slides toward the pipe material 2 via the shaft 104, and the shaft 10
The right clamper 98 slides toward the pipe member 2 via the lever 105, the connecting shaft 110, and the connecting member 112, and moves so as to approach each other. Then, the pipe member 2 is clamped by the left and right clampers 96, 98 via both jaws 92, 94 (step 210).

After the clamping is completed, the revolution motor 36 is rotationally driven to rotate the face plate 6 via the belt 38, the pinion gear 34, and the gear portion 28. Also, the cutting motor 52 is driven to drive the belt 5
4, the sliding ring 10 is slid through the screw shaft 46 and the operating shaft 42. Then, the slide base 4 is slid through the lever 14 to move the disc cutter 1 toward the pipe material 2.
Further, the balance weight 18 is connected to the pipe member 2 via the lever 20.
Slide toward to maintain wheel balance (step 220). As a result, the disc cutter 1 revolves around the pipe 2 as the face plate 6 rotates, and the disc cutter 1 moves toward the pipe 2 as the slide base 4 slides. Then, the disc type cutter 1 contacts the pipe material 2,
Start cutting at the cutting point.

The amount of movement of the disc-shaped cutter 1 at this time is detected by the cutting encoder 58, and based on the preset outer diameter and wall thickness t of the pipe member 2, after the cutting is started, the disc-shaped cutter 1 is made into the pipe member 2. A predetermined amount, in the present embodiment, the wall thickness t of the pipe material 2.
It is judged whether or not the cut is 1/3 or more (step 23)
0). When it is determined that the pipe material 2 is cut by 1/3 or more of the wall thickness t, the execution of the supply control process is stopped and the operation of holding the pipe material 2 at the target position is canceled (step 24).
0). Next, the moving control valve 144 is switched to the first position 144a, the moving cylinder 128 is released to the atmosphere side, and the bias of the moving cylinder 128 to the fixed stopper 134 is released (step 250).

As a result, when an external force is applied to the supply rollers 62, 64 and the supply rollers 62, 64 are to be rotated, the feed motor 76 is in a state of being freely rotated by the external force, so that the supply motors 62, 64 freely rotate together. Further, when an external force is applied to the moving table 116, the moving cylinder 128 is in a state in which no compressed air is supplied and there is no urging force, so that the moving side stopper 132 and the fixed side stopper 134 move in the direction of separation. To do. Therefore, as the cutting depth of the disc type cutter 1 increases,
The pipe material 2 is pushed in the axial direction according to the V-shape of the cutting edge 1a of the disc type cutter 1.

That is, the disc-shaped cutter 1 cuts by cutting it into the pipe material 2, and is not a cutting tool that cuts out by cutting chips like a binder. Therefore, as shown in FIG. 9, as the disc cutter 1 cuts into the pipe member 2, the pipe member 2 receives an acting force by the disc cutter 1 in the direction of separating the pipe member 2 into both sides at the cutting point. . Therefore, on the clamp mechanism 114 side, the pipe member 2 moves the movable table 116 along the rails 124 and 126 in the direction away from the disc cutter 1 via the clamp mechanism 114 by the amount pushed out by the disc cutter 1. Also,
On the side of the supply mechanism 78, the pipe material 2 is pushed in the direction opposite to the supply direction by the amount pushed out by the disc type cutter 1, so that the pipe material 2 reverses the supply rollers 62 and 64 and becomes opposite to the supply direction. Move in the direction.

Next, it is judged whether or not the cutting is completed based on the movement amount of the disc cutter 1 and the preset outer diameter and wall thickness t of the pipe material 2 (step 260). Then, when the cutting is completed, the rotation of the revolution motor 36 is stopped, and the cutting motor 52 is driven in the reverse direction.
Is moved in a direction away from the pipe material 2 to stop cutting (step 270). Next, the control valve 142 for clamping is switched to the second position 142b, the cylinder 102 for clamping is driven to the pulling side, the left and right clampers 96, 98 are moved in the direction away from the pipe material 2, and the clamp of the pipe material 2 is released. Yes (Step 28
0).

Subsequently, during cutting, the pipe material 2 reverses the supply rollers 62 and 64, and the escape amount moved in the direction opposite to the supply direction is detected by the feed encoder 90 via the measuring roller 80 (step). 290). Then, the next supply amount is corrected based on the detected escape amount (step 300).
In the present embodiment, the detected relief amount is added to the preset cutting length, and the amount of supply of the next pipe material 2 is calculated and corrected. As a result, when the feed motor 76 is driven to supply the pipe material 2, the target position in step 180 is determined so that the supply amount detected in step 170 and the corrected supply amount match. This prevents an error in the cutting length due to the escape of the pipe material 2 in the opposite direction to the supply direction. After the correction of the supply amount is completed, the supply control process and the cutting control process described above are repeatedly executed again to supply the pipe material 2 to the cut portion based on the corrected supply amount, and the pipe material 2 is preset. Cut to length. In this way, the pipe material 2 one after another
When the pipe material 2 is cut, the length of the remaining pipe material 2 is gradually shortened, and when the shortened pipe material 2 cannot be sandwiched by the supply rollers 62, 64 and the guide rollers 66, 68, a new pipe material 2 is supplied. It is sandwiched by 64 and guide rollers 66, 68. Then, with the new pipe material 2, the shortened pipe material 2 is pushed to supply a predetermined supply amount to the cut portion. At this time, the shortened pipe material 2 is guided by the measuring rollers 80 and 82 and the guide hole 23 and is supplied to the cut portion.

After the supply to the cutting portion, the supply control processing and the cutting control processing described above are executed, and the shortened pipe material 2 is clamped by the clamp mechanism 114 (step 210) in the same manner as described above, and the disc cutter 1 is connected to the pipe material 2. While moving towards
Revolve around the pipe material 2 and start cutting (step 22)
0). Then, when the depth of cut becomes 1/3 or more of the wall thickness t (step 230), the position holding by the supply control process is released (step 240), and the moving base 11 by the moving cylinder 128 is released.
Release the bias of 6 (step 250).

As a result, as the disc-shaped cutter 1 cuts into the pipe material 2, the clamp mechanism 1 1
14 is moved in a direction away from the disc cutter 1. On the side of the supply mechanism 78, the new pipe material 2 is pushed by the shortened pipe material 2 and the pipe material 2 is moved in the direction opposite to the supply direction.

When the cutting is completed (step 260), the movement and revolution of the disc cutter 1 are stopped (step 270), the clamp is released (step 280), and the return amount of the pipe material 2 is detected (step 290). Correct the supply (step 3)
00).

As described above, in the pipe material cutting apparatus of the present embodiment, when the disc type cutter 1 cuts the pipe material 2 by 1/3 or more of the wall thickness t, the position holding of the pipe material 2 by the supply mechanism 78 is released and the pipe material 2 is moved. The urging of the clamp mechanism 114 by the mechanism 136 is released. During cutting, depending on the shape of the disc type cutter 1,
The pipe member 2 receives an acting force that is pushed out to both sides of the pipe member 2 at the cut portion. Therefore, the pipe member 2 escapes in the direction opposite to the supply direction on the supply mechanism 78 side, and on the clamp mechanism 114 side,
Escape away from the disc cutter 1.

Therefore, as shown in FIG. 9, as the disc type cutter 1 cuts into the pipe material 2, the pipe material 2 is escaped so as to be separated into both sides at the cut portion, and burrs and burrs are generated at the cut portion. To be prevented. That is, if the pipe material 2 is not released in the axial direction during cutting, as shown by the broken line in FIG. 9, the cut portion of the pipe material 2 is pushed by the cutting blade 1a of the disc-type cutter 1 and pushed out inward. Burr, burr, etc. may occur due to bending. However, the disc type cutter 1
When the cut portion of the pipe material 2 is pushed by the V-shaped cutting blade 1a, the pipe material 2 is released in the axial direction, and the cut portion is not forcibly pushed by the cutting blade 1a of the disc-shaped cutter 1 to cut. No burr or burr is generated at the location.

Further, even when the pipe material 2 is shortened, the new pipe material 2 pushes the shortened pipe material 2 to supply it to the cutting point, and when the pipe material 2 is cut by 1/3 or more of the wall thickness t, the supply mechanism 78
The holding of the position of the pipe material 2 by the
The urging of the clamp mechanism 114 by 6 is released. Therefore, even a shortened pipe material can be cut, and similarly, at the cut portion, it is escaped so as to be separated into both sides, and burrs and burrs at the cut portion are prevented from occurring.

The present invention is not limited to the embodiments as described above, and can be implemented in various modes without departing from the gist of the present invention.

[Effects of the Invention] As described in detail above, in the pipe material cutting device of the present invention, after the disc cutter cuts a predetermined amount into the pipe material, the position holding by the supply mechanism is released and the biasing by the moving mechanism is released. , The pipe material is released to both sides at the cutting point. Therefore, burrs and burrs do not occur even if the cut portion is pressed by the disc cutter. Further, even if the pipe material is short, similarly, after the predetermined amount is cut, the position holding is released and the bias is released, so that the pipe material is escaped to both sides at the cut portion. Therefore, even a short pipe material can be cut without burr or burr.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating the basic configuration of the present invention, FIG. 2 is a schematic layout view of a pipe material cutting device as one embodiment of the present invention, and FIG. 3 is this embodiment. 4 is an enlarged front view showing a part of the cutting mechanism centering on the disc type cutter of this embodiment, and FIG. 5 is an AA of FIG.
A sectional view, FIG. 6 is a block diagram showing a configuration of an electric system and a pneumatic system of this embodiment, FIG. 7 is a flow chart showing an example of a supply control process performed in an electronic control circuit of this embodiment, and FIG. Similarly, FIG. 9 is a flow chart showing an example of a cutting control process performed in the electronic control circuit of the present embodiment, and FIG. 9 is an explanatory view of a cutting state by the disc type cutter of the present embodiment. M1,1 …… Disk cutter M2,2 …… Pipe material M3,78 …… Supply mechanism M4,114 …… Clamp mechanism M5,136 …… Movement mechanism M6 …… Movement detection means M7 …… Disconnection control means 60… Cutting mechanism 62,64 Supply roller 80,82 Measuring roller 88 Feed encoder 102 Clamping cylinder 128 Moving cylinder 150 Electronic control circuit

Claims (1)

[Claims] 1. A pipe material cutting device for moving a disk-shaped cutter toward a center in a radial direction of a pipe material and revolving around the pipe material to cut the pipe material, by supplying a predetermined amount of the pipe material in an axial direction thereof, A clamp mechanism that supplies the pipe material to the cutting location by a supply mechanism that holds the position and clamps the pipe material is provided on the opposite side of the cutting location from the supply mechanism, and is slidable in the axial direction of the pipe material. The clamp mechanism is mounted on the movable table supported by the movable table, and the movable table has a moving mechanism that holds the movable table at a predetermined position while urging the movable table toward the cutting position and abutting against the stopper. A moving amount detecting means for detecting a moving amount of the disk type cutter in the radial direction, and when the moving amount detecting means detects that the disk type cutter has cut into the pipe material by a predetermined amount. It said releasing the position holding by the supply mechanism, and the moving and releasing the holding by mechanism, tubing cutting apparatus characterized by comprising a cutting control means for slidable the clamping mechanism.