JP2010105122A - Processing equipment of steel pipe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide processing equipment of a steel pipe by which the steel pipe (product) of a prescribed length can be easily obtained. <P>SOLUTION: Steel pipe moving means 130 is provided in the upper part of a conveying path 1 for conveying the steel pipe 300, and steel pipe processing means and steel pile clamp means are provided in a lower part. The steel pipe processing means cuts the steel pipe clamped by the steel pipe clamp means into round slices and then works the edge at the end face on a cut side. The steel pipe moving means includes a holding device 131 which can sandwich the starting end of the steel pipe in the width direction, a moving device 151 for reciprocating the holding device in the conveying path direction, and a measuring device for measuring the distance from the starting end face 300d of the steel pipe held and moved to the processing position K of the steel pipe processing means. When the measuring device measures a set distance, a movement by the moving device is stopped. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to processing equipment for various steel pipes such as a square steel pipe and a round steel pipe.

  Conventionally, a square steel pipe cold-formed by, for example, a cold forming machine has a square steel pipe clamping means and a pair of left and right processing means sandwiching the conveyance path in a part of a conveyance path for conveying the square steel pipe in the length direction. Are processed by a processing facility provided. That is, before accepting the square steel pipe, the clamping means is set to the non-clamping posture, and in both processing means, the cutting blade body is directed to the conveyance path side by the rotation of the blade holding body, and any one of the processing In the means, the cutting blade is lowered, and in another processing means, the cutting blade is raised. In this state, the square steel pipe is transported in the length direction on the transport path and stopped at a predetermined position. Then, in a state where the square steel pipe is fixed at a predetermined position by the clamp means, the processing means is operated to cut the square steel pipe.

Next, groove processing is performed on the cut end surface of the square steel pipe. That is, first, the blade holding body is rotated around the longitudinal axis, the cutting blade body and the groove processing blade body are interchanged, and the groove processing blade body is directed to the cutting end face side. Next, by performing lateral movement and up-and-down movement of the groove processing blade body, the pair of rotationally driven groove processing blade bodies are moved in the same direction around the square steel pipe to sequentially open the cutting end faces. It can be pre-processed, so that a groove can be formed at the end of the square steel pipe. Thereby, in one place, after cutting a square steel pipe with a cutting blade body to form a cut end face, it is possible to process a groove with respect to the cut end face with a groove processing blade body (for example, (See Patent Document 1).
JP 2007-61951 A (page 1-3, FIG. 1-10)

However, according to the above-described conventional configuration, it is not easy to make a square steel pipe (product) that has been grooved after cutting and removing the tip portion into a predetermined length (dimension).
SUMMARY OF THE INVENTION An object of the present invention is to provide a steel pipe processing facility that can easily obtain a steel pipe (product) having a predetermined length (dimension).

  In order to achieve the above-described object, the steel pipe processing facility according to claim 1 of the present invention is provided with a steel pipe moving means on the upper side portion of the conveyance path for conveying the steel pipe in the length direction, and on the lower side portion. The steel pipe processing means and the steel pipe clamping means are provided, and the steel pipe processing means is configured to cut a steel pipe clamped by the steel pipe clamping means into a ring shape, and then to process a groove on the end surface on the cutting side. The moving means includes a holding device that can hold the starting end portion of the steel pipe in the thickness direction, a moving device that reciprocates the holding device in the direction of the conveyance path, and a steel pipe from the end surface on the starting end side of the steel pipe that is being held and moved. Comprising a measuring device for measuring the distance to the processing position of the processing means, and this measuring device is configured to stop the movement by the moving device when measuring the set distance A.

  Therefore, according to the first aspect of the present invention, the steel pipe clamping means is in the non-clamping posture before receiving the steel pipe. In this state, the starting end portion of the steel pipe can be clamped by the clamping device, and the steel pipe can be conveyed in the length direction on the conveyance path via the clamping device by the moving device. After the end portion of the steel pipe has passed the processing position by this conveyance, the conveyance by the moving device can be stopped when the measuring device measures the set distance, so that the steel pipe can be stopped at a predetermined position. Next, by operating the steel pipe processing means in a state where the steel pipe is fixed at a predetermined position by the steel pipe clamping means, the steel pipe is cut into a ring shape, and then a groove is machined on the cut side end face. Thereby, the steel pipe (product) of the predetermined | prescribed length (dimension) which processed the groove | channel on the cut side end surface is obtained.

  According to a second aspect of the present invention, there is provided the steel pipe processing facility according to the first aspect, wherein the measuring device has a measurement start position based on a servo motor serving as a driving source of the moving device and a clamping position by the clamping device. It consists of a setting part to be set and an end face detection part for detecting the end face of the steel pipe on the steel pipe processing means side. By setting the measurement start position by the setting part, the forward movement of the clamping device by the servo motor is temporarily stopped. After the clamping operation, the servomotor is again moved forward until the measuring device measures the set distance.

  Therefore, according to the invention of claim 2, the clamping device is moved in the direction of the transport path (forward movement) by driving the servo motor in the moving device. Then, by setting the measurement start position by the setting unit, the distance from the measurement start position to the processing position is measured, and after the movement of the clamping device is temporarily stopped, the starting end portion of the steel pipe is clamped by the clamping device. obtain. Next, the steel pipe can be transported in the length direction on the transport path via the clamping device by re-driving the servo motor. First, the end face detection unit detects the end face of the steel pipe, and subtracts the moving distance from the measurement start position of the steel pipe moving means and the separation distance from the end face detection unit to the processing position at this time from the measured distance. Thus, the uneven length of the steel pipe can be measured by the measuring device. Further, after the steel pipe is moved and its end side end surface passes the processing position, the measuring device stops the movement by the moving device when measuring the set distance. Next, the steel pipe processing means can be operated in a state where the steel pipe is fixed at a predetermined position by the steel pipe clamping means.

  In the steel pipe processing facility according to claim 3 of the present invention, in the configuration according to claim 1 or 2, the measuring device measures the set distance to stop the movement by the moving device, and the steel pipe is clamped by the steel pipe clamping means. After clamping, the clamping device is configured to be once opened and then clamped again.

  Therefore, according to the invention of claim 3, the steel pipe is brought into a predetermined position by stopping the conveyance by the moving device, and the clamping device is once moved to open in a state where the end portion of the steel pipe is clamped by the steel pipe clamping means. Even if the vibration occurs, the clamping device side is not affected. Then, after cutting the steel pipe by the steel pipe processing means and performing the groove processing on the cut end face, the holding apparatus is moved again to perform conveyance by the moving apparatus.

  Furthermore, in the steel pipe processing facility according to claim 4 of the present invention, in the configuration according to any one of claims 1 to 3, the conveying path is formed by a conveyor device, and the clamping device of the steel pipe moving means is: A movable body supported and guided on the conveyor frame side and movable in the direction of the conveyance path, and a lower part attached to the movable body via a first horizontal axis orthogonal to the direction of the conveyance path so as to be swingable up and down. A holding body, an upper holding body attached to the lower holding body through a second horizontal axis parallel to the first horizontal axis so as to be swingable up and down, and an approaching / separating device provided between both the holding bodies; The both sandwiching bodies are directed to the steel pipe processing means side, and are configured to be able to sandwich the starting end portion of the steel pipe between its free ends in the thickness direction, and are configured to reciprocate the movable body by a moving device. It is characterized by being.

  Therefore, according to the invention of claim 4, by moving the movable body forward in the direction of the transport path (forward movement) by the moving device and stopping it, the free end of the lower sandwiching body is opposed to the downward surface of the steel pipe from below, Further, the free end of the upper clamping body can be positioned in the steel pipe. Then, by operating the approaching / separating device, the lower sandwiching body can be swung upward about the first horizontal axis, and the upper sandwiching body can be swung downward about the second horizontal axis. Thereby, both clamping bodies can be moved close to each other, and the steel pipe can be clamped in the thickness direction between the free ends. At that time, the thickness change according to the type of the steel pipe can be dealt with by the upper clamping body swinging up and down around the second horizontal axis.

  In addition, in the steel pipe processing facility according to claim 5 of the present invention, in the configuration according to claim 4 described above, a spherical bearing is fitted on the first horizontal axis, and a lower clamping body is fitted on the spherical bearing. Thus, the clamping between the free ends of both clamping bodies is configured to be rotatable in the left-right direction via a spherical bearing.

  Therefore, according to the invention of claim 5, when sandwiching between the free ends of both sandwiching bodies, with respect to the inclination in the left-right direction (width direction) and the thickness change in the left-right direction when forming the steel pipe, By the spherical bearing, the lower clamping body rotates within a certain range in the left-right direction with respect to the first horizontal axis, that is, both clamping bodies rotate within the certain range in the left-right direction with respect to the first horizontal axis. Can be dealt with.

  According to a sixth aspect of the present invention, there is provided the steel pipe processing facility according to any one of the first to fifth aspects, wherein the lower end portion of the steel pipe clamping means is provided with a means for taking out the tip removing steel pipe. It is characterized by being.

Therefore, according to the sixth aspect of the present invention, even if the removed steel pipe has a short removal length, the removal means can stably carry it out from the processing position.
And the processing equipment of the steel pipe of Claim 7 of this invention is the structure of any one of Claims 1-6 mentioned above, A steel pipe clamp means is in the direction of a conveyance path | route in the steel pipe processing means inside. A pair of left and right steel pipe processing means are provided across the conveyance path, and these steel pipe processing means are arranged on the main body side so as to be laterally movable in an approaching and separating direction with respect to the conveyance path; A lateral movement device provided between the main body side and the lateral movement body, a longitudinal movement body provided so as to be movable up and down with respect to the lateral movement body, and between the lateral movement body and the longitudinal movement body Via an elevating device provided, a blade holder rotatably provided around a longitudinal axis along the conveying path with respect to the longitudinally movable body, and a drive shaft along the longitudinal axis, respectively. A cutting blade provided rotatably on the blade holder side, and The previous working blade, is obtained characterized by comprising a rotary drive unit interlocked with the drive shaft of the cutting blade and grooving blade body.

  Therefore, according to the invention of claim 7, before the steel pipe is received, the steel pipe clamping means is set to the non-clamping posture, and in both the steel pipe processing means, the laterally moving body is moved away from the conveying path, and the blade holder is provided. The cutting blade is directed toward the conveying path by the rotation of the cutting blade, and the cutting blade is lowered in one of the processing means, and the cutting blade is raised in another processing means. In this state, the steel pipe is transported in the length direction on the transport path and stopped at a predetermined position. Next, in a state where the steel pipe is fixed at a predetermined position by the steel pipe clamping means, the processing means is operated to cut the steel pipe. That is, a pair of cuttings that are rotationally driven by laterally moving and raising and lowering both cutting blades in a state where the cutting blades are driven and rotated through the drive shaft by driving the rotation driving unit. The blade body can be moved in the same direction around the steel pipe and sequentially cut, so that the front end, the rear end and the middle of the steel pipe can be cut, and the cut front end portion can be removed.

  Next, groove processing is performed on the cut end surface of the steel pipe. That is, first, the blade holding body is rotated around the longitudinal axis, the cutting blade body and the groove processing blade body are interchanged, and the groove processing blade body is directed to the cutting end face side. Next, by performing lateral movement and up-and-down movement of the groove processing blade body, a pair of rotationally driven groove processing blade bodies are moved in the same direction around the steel pipe, and the cut end faces are sequentially grooved. Can be machined, thus forming a groove at the end of the steel pipe. Thereby, in one place, after cutting a steel pipe with a cutting blade body and forming a cut end face, a groove processing can be performed on the cut end face with a groove processing blade body.

  According to the first aspect of the present invention described above, with the steel pipe clamping means in the non-clamping posture, the starting end portion of the steel pipe is clamped by the clamping device, and the steel pipe is moved on the conveyance path via the clamping device by the moving device. Can be transported in the length direction. After the end portion of the steel pipe passes the processing position by this conveyance, the conveyance by the moving device can be stopped when the measuring device measures the set distance, and the steel pipe can be stopped at a predetermined position. Next, by operating the steel pipe processing means in a state where the steel pipe is fixed at a predetermined position by the steel pipe clamping means, the steel pipe is cut into a ring shape, and then a groove can be machined on the cut side end face. Thereby, the steel pipe (product) of the predetermined length (dimension) which processed the groove | channel on the cutting side end surface can be obtained simply and easily.

  According to the second aspect of the present invention, the clamping device can be moved in the direction of the conveyance path (forward movement) by driving the servo motor in the moving device. Then, by setting the measurement start position by the setting unit, the distance from the measurement start position to the processing position is measured, and after the movement of the clamping device is temporarily stopped, the starting end portion of the steel pipe can be clamped by the clamping device. . Subsequently, the steel pipe can be transported in the length direction on the transport path via the clamping device by re-driving the servo motor. First, the end face detection unit detects the end face of the steel pipe, and the moving distance from the measurement start position of the steel pipe moving means and the separation distance from the end face detection unit to the processing position at this time are subtracted from the measured distance. Thus, the uneven length of the steel pipe can be measured by the measuring device. Further, after the steel pipe is moved and its end side end surface passes the processing position, the measuring device can stop the movement by the moving device when measuring the set distance. Next, the steel pipe processing means can be operated in a state where the steel pipe is fixed at a predetermined position by the steel pipe clamping means.

  And according to claim 3 of the present invention described above, the conveyance by the moving device is stopped to bring the steel pipe into a predetermined position, and the clamping device is once moved to open in a state where the end portion of the steel pipe is clamped by the steel pipe clamping means. Even if the steel pipe is shaken by the clamp, the clamping device side is not affected, and damage to the clamping device side can be prevented. Then, after cutting the steel pipe by the steel pipe processing means and performing the groove processing on the cut end face, the holding apparatus is moved again to perform the conveyance by the moving apparatus.

  Furthermore, according to claim 4 of the present invention described above, the movable body is moved forward in the direction of the transport path (forward movement) by the moving device and stopped, so that the free end of the lower sandwiching body is moved downward from the lower surface of the steel pipe. It is possible to face each other, and the free end of the upper clamping body can be positioned in the steel pipe. Then, by operating the approaching / separating device, the lower sandwiching body can be swung upward about the first horizontal axis, and the upper sandwiching body can be swung downward about the second horizontal axis. The steel pipes can be clamped in the thickness direction between the free ends. At that time, the thickness change according to the type of the steel pipe can be automatically dealt with by the upper clamping body swinging up and down around the second horizontal axis. Thereby, the clamping in the thickness direction by both clamping bodies can always be performed stably and firmly.

  Moreover, according to the fifth aspect of the present invention described above, when sandwiching between the free ends of both sandwiching bodies, against the inclination in the left-right direction (width direction) and the thickness change in the left-right direction when the steel pipe is formed. Thus, the lower sandwiching body is rotated within a certain range in the left-right direction with respect to the first horizontal axis by the spherical bearing, that is, both sandwiching bodies are within a certain range in the left-right direction with respect to the first horizontal axis. It can cope automatically by turning. Therefore, clamping in the thickness direction by both clamping bodies can always be performed stably and firmly.

According to the sixth aspect of the present invention described above, even if the removed steel pipe has a short removal length, it can be stably carried out from the processing position by the take-out means.
According to the seventh aspect of the present invention, the steel pipe is transported in the length direction on the transport path, stopped at a predetermined position, and the processing means is operated in a state where the steel pipe is fixed at the predetermined position by the steel pipe clamping means. The steel pipe can be cut. That is, a pair of cuttings that are rotationally driven by laterally moving and raising and lowering both cutting blades in a state where the cutting blades are driven and rotated via the drive shaft by driving the rotation driving unit. The blade body can be sequentially cut by moving the blade body in the same direction around the steel pipe, so that the tip or middle of the steel pipe can be cut. Next, the blade holder is rotated around the longitudinal axis, the cutting blade body and the groove processing blade body are interchanged, and the groove processing blade body is directed toward the cutting end face, and the groove By performing lateral movement and lifting movement of the processing blade body, the pair of groove processing blade bodies that are rotationally driven can be moved in the same direction around the steel pipe, and the cutting end face can be sequentially grooved, Thus, a groove can be formed at the end portion of the steel pipe.

  In this way, at one place where the processing means is disposed, the steel pipe is cut with the cutting blade body to form the cut end face, and then the groove is processed with respect to the cut end face with the groove processing blade body. As a result, the production line can be shortened, the occupation area can be reduced, and only the steel pipe clamping means corresponding to the processing means can be used, so that downsizing and cost reduction of the equipment can be expected.

[Embodiment 1]
Below, Embodiment 1 of this invention is demonstrated based on a figure as a state employ | adopted as the process of a square steel pipe.

  2 to 4, a conveyance path 1 for conveying a rectangular steel pipe (an example of a steel pipe) 300 in a length direction includes a long idle roller conveyor device (an example of a conveyor device) 2 and a short drive roller conveyor device (an example of a conveyor roller device). An example of a conveyor device 7). A steel pipe moving means 130 is provided on the upper side portion (starting end portion) of the conveyance path 1, and a pair of left and right steel pipe processing means 21A sandwiching the conveyance path 1 is provided on the lower side portion (terminal portion) of the conveyance path 1. , 21B and steel pipe clamping means 111A, 111B disposed in the direction of the transport path 1 with these steel pipe processing means 21A, 21B in between. Further, a carry-out path 15 that is continued to the end of the conveyance path 1 and carries out the treated steel pipe (product) 300A in the length direction is formed by a long drive roller conveyor device (an example of a conveyor device) 16 and In the lower portion of the steel pipe clamp means 111B, there is provided a take-out means 230 for removing the tip removal steel pipe (processed product) 300B. In addition, the square steel pipe 300 is formed in a regular tetragonal shape by four side portions 300a and four corner portions (R-shaped corner portions) 300b. Is formed.

  The idle roller conveyor device 2 has a pair of left and right conveyor frames 3, which are in the form of I-shaped rails (laterally H-shaped rails) and are integrated via a plurality of stand bodies 4. And installed on the floor. And the idler roller 5 which made the roller axis | shaft the left-right direction (lateral direction orthogonal to the direction of the conveyance path | route 1) on the both conveyor frames 3 in the several places of the direction of the conveyance path | route 1 via the support body 6 respectively. Arranged. An example of the idle roller conveyor device 2 is configured by the above 3-6 and the like.

  10-12, the said drive roller conveyor apparatus 7 is divided | segmented and provided corresponding to the part of steel pipe clamp means 111A, 111B, and it is a roller axis | shaft on the base frame part of a main body (it mentions later). Drive rollers 8A, 8B having a width in the left-right direction are arranged via supports 9A, 9B. Drive rollers 11A and 11B are disposed via swing support members 10A and 10B at locations corresponding to the steel pipe processing means 21A and 21B. The drive rollers 11A and 11B are connected to the drive rollers 8A and 8B. Cylinder devices 12A and 12B for swinging the swinging supports 10A and 10B are provided so as to have the same raised position and the lowered position just below the drive rollers 8A and 8B. The upper drive rollers 8A and 11A are linked and connected to a common motor 13 via a chain transmission mechanism and a gear transmission mechanism. The lower drive rollers 8B and 11B are configured to be driven in conjunction with the drive roller conveyor device 16 that forms the carry-out path 15. An example of the drive roller conveyor device 7 is configured by the above 8A, 8B to 13 and the like.

  2 to 5, positioning means 181 for positioning in the width direction of the square steel pipe 300 supplied from the supply means (described later) onto the idle roller conveyor device 2 is provided on the other side portion of the conveyance path 1. Are provided at a plurality of locations (for example, 4 locations) in the direction of the transport path 1. That is, each positioning means 181 has the same configuration, and a mounting base 182 is provided on the conveyor frame 3 on the other side. On the mounting base 182, a left and right guide shaft 183 is provided via a pair of holding members 184, and a slide body 185 that is externally fitted to the guide shaft 183 and guided is provided. A support frame 186 is provided on the slide body 185, and a positioning roller 187 is provided on the support frame 186 so as to be freely rotatable via a vertical roller shaft. Further, a manual operation plate 188 is fixed on the support frame 186.

  A plurality of locking holes 189 are formed in the mounting base 182 in a staggered pattern at predetermined intervals in the left-right direction, and the slide body 185 is formed in any of the locking holes 189 when slid. A communication hole 190 that allows communication is formed. Then, a locking pin 191 that can be engaged from above is provided from the communicating hole 190 to the locking hole 189, and in order to confirm the engagement position, a cover pin provided on the front and rear surfaces of the slide body 185 is provided. A proximity sensor 193 group capable of detecting the detection body (dog) 192 is disposed on the sensor bracket 194 from the conveyor frame 3 side. A proximity sensor 195 that can detect the position of the square steel pipe 300 is provided on the front and rear surfaces of the support frame 186.

  Therefore, the locking pin 191 is pulled out, the slide body 185 is slid by manual operation with the manual operation plate 188 gripped, and the communication hole 190 is communicated with the intended locking hole 189, and then the communication hole 190 is opened. By engaging the locking pin 191 with the locking hole 189, the position of the positioning roller 187 can be adjusted according to the width of the square steel pipe 300 to be handled. Thereby, the side surface of the square steel pipe 300 supplied from the supply means onto the idle roller conveyor device 2 is brought into contact with the positioning roller 187 group, and the width center of the square steel pipe 300 is matched with the center of the conveyor width direction. Can be positioned. An example of the positioning means 181 is configured by the above-described 182 to 195 and the like.

  2 to 5, a supply means 200 for storing the square steel pipes 300 in parallel and supplying them one by one onto the idle roller conveyor device 2 is provided outside one side of the conveying path 1. Yes. That is, a pair of support rail bodies 201 that are orthogonal to the direction of the transport path 1 are provided at a predetermined interval in the direction of the transport path 1. A steel pipe feeding device 202 is provided along each support rail body 201. Here, both the steel pipe feeding devices 202 are reciprocally moved in synchronization with the guide frame body 203 provided along the support rail body 201, the moving body 204 supported and guided by the guide frame body 203, and the both moving bodies 204. A steel pipe lifting body that can be moved up and down by lifting means is provided on the upper part of the moving body 204.

  In addition, a transfer device 211 that moves the square steel pipe 300 supported between the support rail bodies 201 onto the transfer route 1 is provided between the guide frame bodies 203 on the transfer route 1 side. The idle roller 216 group is configured to be movable up and down and to and from the conveyance path 1. That is, an elevating body 214 is provided on the base frame 212 via a four-link mechanism 213, and the four-link mechanism 213 is operated between the link portion of the four-link mechanism 213 and the base frame 212. A cylinder device 215 is provided. On the elevating body 214, a horizontal moving body 217 provided with a group of idler rollers 216 is provided, and a cylinder device 218 for moving the horizontal moving body 217 out and back with respect to the transport path 1 is provided. .

  Further, a pressing device 221 for pressing the square steel pipe 300 on the transport path 1 against the positioning means 181 side is provided outside the both support rail bodies 201 on the transport path 1 side. That is, a plate body 222 is provided outside the support rail body 201, and a lateral movement frame body 223 is provided outside the plate body 222, and the lateral movement frame body 223 is moved in and out of the conveyance path 1. A cylinder device 224 to be moved is provided between the plate body 222. A pressing body 226 is swingably provided on the lateral movement frame body 223 via a lateral pin 225 along the transport path 1. At that time, the pressing body 226 automatically swings so that the rear side is in a lower position due to a change in the weight of the front and rear with respect to the lateral pin 225, and the rear end abuts against the stopper body 227 so that the front side is The upper surface 226a is inclined, and the pushing surface 226b at the front end is configured to be positioned above the upper surface of the idle roller 5 group. An example of the transfer device 211 is configured by the above 212 to 218, etc., an example of the pressing device 221 is configured by 222 to 227, and an example of the supply unit 200 is configured by 201 to 227 and the like.

  1 and 10 to 14, a main body 20 for arranging the steel pipe processing means 21A, 21B and the steel pipe clamping means 111A, 111B includes a pair of base frame parts 20a in the front-rear direction (conveying direction), and these Between a pair of left and right vertical frame portions 20b disposed on the base frame portion 20a, a horizontal frame portion 20c provided between upper portions of the vertical frame portions 20b in the left-right direction, and an outer end portion of the base frame portion 20a. The lower front / rear frame portion 20d and the like are provided in a frame configuration. A central portion of the main body 20 is formed with a through portion 20e through which the transport path 1 is inserted by a base frame portion 20a, both vertical frame portions 20b, and a horizontal frame portion 20c. The drive roller conveyor device 7 is provided on the base frame portion 20a.

  The steel pipe clamping means 111A and 111B are arranged in a pair in the direction of the conveyance path 1 with the steel pipe processing means 21A and 21B in the middle, and the left and right clamping devices 112 and the upper and lower clamping devices 120 provided on the main body 20 side, respectively. It consists of. That is, the left and right clamping device 112 includes a pair of left and right cylinder devices 113 attached to the vertical frame portion 20b with the piston rods facing each other, and a push / pull body 114 connected to the piston rods of these cylinder devices 113, A movable body 115 connected to the inner end portion of the push-pull body 114, a guide body 116 having an inner end portion connected to the movable body 115 and supported and guided toward the vertical frame portion 20b, and the movable body 115 The clamp body 117 is provided on the inner surface side so as to be slidable in the direction of the conveying path 1, and the sliding cylinder device 118 is provided on the movable body 115 side to slide the clamp body 117. The vertical clamp device 120 includes a cylinder device 121 attached to the horizontal frame portion 20c with the piston rod facing downward, a pressing body 122 connected to the piston rod of the cylinder device 121, and the like.

  According to the steel pipe clamping means 111A and 111B configured as described above, the cylinder device 113 is extended and the clamp body 117 is brought into contact with both side surfaces of the square steel pipe 300, so that the left and right clamping devices 112 cause the square steel pipe 300 to move to both sides. The cylinder device 121 is extended and moved, and the pressing body 122 is brought into contact with the upper surface of the square steel pipe 300, so that the square rollers are driven by the driving rollers 8 </ b> A and 8 </ b> B of the drive roller conveyor 7 and the vertical clamp device 120. 300 can be clamped from above and below. Further, by sliding the clamp body 117 with respect to the movable body 115 by the sliding cylinder device 118, the clamped square steel pipe 300 can be moved in the direction of the conveyance path 1. An example of the steel pipe clamping means 111A and 111B is configured by the above 112-122 and the like.

  The steel pipe processing means 21A and 21B are laterally movable bodies 22A and 22B provided on the main body 20 side so as to be laterally movable in the approaching and separating direction with respect to the transport path 1, and the main body 20 side and the laterally movable bodies 22A and 22B. Laterally moving devices 24A and 24B provided between them, longitudinally moving bodies 40A and 40B provided so as to be movable up and down relative to the laterally moving bodies 22A and 22B, and longitudinally moving with these laterally moving bodies 22A and 22B. Elevating devices 42A and 42B provided between the bodies 40A and 40B, and the longitudinally moving bodies 40A and 40B are provided so as to be rotatable around the longitudinal axes 59A and 59B along the transport path 1. The blade holders 60A, 60B and the cutting blades provided on the blade holders 60A, 60B side through the drive shafts 80A, 80B, 84A, 84B along the longitudinal axes 59A, 59B, respectively. Blade bodies 82A, 82B and groove machining blade bodies 86A, 86B, and the cutting blade bodies 82A, 82B and groove machining blade bodies 86A, 86B, which rotate in conjunction with the drive shafts 80A, 80B, 84A, 84B. It is comprised from the drive parts 90A and 90B.

  That is, the steel pipe processing means 21A and 21B are supported and guided by the base frame portion 20a and the horizontal frame portion 20c that are long in the left-right direction through the LM guides 23A and 23B, respectively, so It is provided as movable. The lateral movement devices 24A and 24B provided between the main body 20 side and the lateral movement bodies 22A and 22B have base plate bodies 25A and 25B arranged on the base frame portion 20a of the main body 20, Screw bodies (ball screws or the like) 26A, 26B are arranged on the base plate bodies 25A, 25B with the length direction thereof being a direction along the approaching / separating direction, and both ends are supported by the bearing members 27A, 27B. Thus, the base plate bodies 25A and 25B (on the main body 20 side) are rotatably provided.

  On the outer end side of the base plate bodies 25A and 25B (on the main body 20 side) there are provided motors 28A and 28B (which are an example of a forward and reverse rotation drive unit and are composed of a DC motor or the like) 28A and 28B. The output shafts 28A and 28B and the screw bodies 26A and 26B are interlocked and connected via the winding transmission mechanisms 29A and 29B. And nut bodies 30A and 30B screwed to the screw bodies 26A and 26B are provided, and the nut bodies 30A and 30B are attached to the movable bodies 31A and 31B. Here, the movable bodies 31A and 31B are supported and guided through the LM guides 32A and 32B on the outer surfaces of the laterally moving members 22a and 22b that are continuously provided outward from the laterally moving bodies 22A and 22B, thereby approaching and separating. It is provided so as to be movable in the direction.

  Between the movable bodies 31A, 31B and the lateral movement bodies 22A, 22B in the lateral movement devices 24A, 24B, overload buffering means 33A, 33B for buffering an overload during the lateral movement of the lateral movement bodies 22A, 22B are provided. Is provided. In other words, the overload buffering means 33A, 33B are a pair of movable bodies 31A, 31B and the laterally movable bodies 22A, 22B provided in a state where the movable bodies 31A, 31B are arranged in the approaching / separating direction. The neutral maintaining hydraulic cylinder devices 34A, 34B, 35A, 35B and one (outside) neutral maintaining hydraulic cylinder devices 35A, 35B are parallel to each other between the movable bodies 31A, 31B and the laterally moving bodies 22A, 22B. The buffer hydraulic cylinder devices 36A and 36B are provided, and when the neutral maintaining hydraulic cylinder devices 34A, 34B, 35A and 35B act to return from the overload state to the neutral state, the buffer hydraulic cylinder devices 36A and 36B are provided. Is configured to buffer. The above-described 34A, 34B to 36A, 36B, etc. constitute an example of the overload buffer means 33A, 33B, and 25A, 25B-36A, 36B etc. constitute an example of the lateral movement devices 24A, 24B.

  The vertical moving bodies 40A and 40B are provided so as to be movable up and down by being supported and guided by the LM guides 41A and 41B with respect to the horizontal moving bodies 22A and 22B. The elevating and lowering devices 42A and 42B provided between the laterally moving bodies 22A and 22B and the longitudinally moving bodies 40A and 40B are motors (forward / reverse) that can be driven forward / reversely and are provided above the laterally moving bodies 22A and 22B. An example of the rotation drive unit is composed of a DC motor or the like.) 43A, 43B, screw bodies 45A, 45B linked to the downward output shafts of the motors 43A, 43B via the transmission mechanisms 44A, 44B, The nuts 46A and 46B are fixed to the longitudinally moving bodies 40A and 40B, and the screw bodies 45A and 45B are screwed together. The upper and lower ends of the screw bodies 45A, 45B are rotatably supported on the longitudinally moving bodies 40A, 40B via bearing members 47A, 47B. The above 43A, 43B to 47A, 47B and the like constitute an example of the lifting devices 42A, 42B.

  Elevating and lowering balance devices 50A and 50B are provided in parallel with the elevating and lowering devices 42A and 42B. In other words, chain rings 52A and 52B are provided on the upper portions of the laterally movable bodies 22A and 22B so as to be freely rotatable via the holding frame bodies 51A and 51B, and the chains 53A and 53B hung on the chain rings 52A and 52B are provided. The free ends are connected to the longitudinally moving bodies 40A and 40B via connecting members 54A and 54B. The base ends of the chains 53A and 53B are connected to the piston rods of the balancing cylinder devices 55A and 55B provided on the side of the lateral moving bodies 22A and 22B. The above 51A, 51B to 55A, 55B, etc. constitute one example of the lifting balance devices 50A, 50B.

  Therefore, the horizontal moving bodies 22A and 22B are moved horizontally by the horizontal moving devices 24A and 24B, and the vertical moving bodies 40A and 40B are moved up and down by the lifting and lowering devices 42A and 42B, whereby the vertical moving bodies 40A and 40B are transported. It is configured to be able to move laterally and move up and down with respect to the path 1 in the approaching / separating direction. Then, by operating the balancing cylinder devices 55A and 55B in accordance with the lifting and lowering movements of the lifting and lowering devices 42A and 42B, the vertical moving bodies 40A and 40B can be lifted and lowered in a balanced manner.

  The blade holders 60A and 60B are provided on the conveying path 1 side of the longitudinally moving bodies 40A and 40B. That is, the blade holders 60A and 60B include the horizontally-oriented cylindrical rotating parts 61A and 61B, the holding parts 62A and 62B connected to one side surface of the rotating parts 61A and 61B, the connecting parts 63A and 63B connected to the other side surface, and the like. The rotating portions 61A and 61B are fitted into the rotation support members 48A and 48B on the longitudinal moving bodies 40A and 40B, and are supported rotatably around the longitudinal axial centers 59A and 59B. On the longitudinally moving bodies 40A and 40B side, rotational movement devices 65A and 65B for rotating the blade holders 60A and 60B and rotational positioning devices 70A and 70B for positioning the rotated blade holders 60A and 60B. And are provided.

  That is, the longitudinally moving bodies 40A and 40B are provided with drive parts 66A and 66B made of a motor, a speed reducer, etc., and the output shafts 67A and 67B in the front-rear direction and the connecting parts 63A and 63B are connected to the chain transmission mechanism 68A. , 68B. The longitudinally moving bodies 40A and 40B are provided with cylinder devices 71A and 71B with their piston rods facing upward, and the rotation support members 48A and 48B side via link mechanisms 72A and 72B to which the piston rods are connected. Abutting members 73A and 73B provided on the outer periphery of the rotating portions 61A and 61B are configured to be press-contacted and separated. The above-described 66A, 66B to 68A, 68B, etc. constitute an example of the rotational movement devices 65A, 65B, and 71A, 71B-73A, 73B etc. constitute an example of the rotational positioning devices 70A, 70B.

  Therefore, in a state where the contact members 73A and 73B are separated from the outer peripheral surfaces of the rotating portions 61A and 61B by the contraction movement of the cylinder devices 71A and 71B, the connecting portions are connected by the drive portions 66A and 66B via the chain transmission mechanisms 68A and 68B. By rotating 63A and 63B, the blade holders 60A and 60B can be rotated forward and backward in the form of 180 degrees around the longitudinal axis 59A and 59B. Then, the rotational positions of the contact members 73A, 73B can be positioned by the rotational positioning devices 70A, 70B by bringing the contact members 73A, 73B into pressure contact with the outer peripheral surfaces of the rotating portions 61A, 61B by the extending movement of the cylinder devices 71A, 71B.

  The holding portions 62A and 62B of the blade holders 60A and 60B include cutting-side drive shafts (an example of drive shafts) 80A and 80B and groove-side drive shafts (an example of drive shafts) 84A and 84B. The cutting-side drive shafts 80A and 80B and the groove-side drive shafts 84A and 84B are provided with bearings 81A, 81B, 85A, and 85B. It is rotatably supported via. Cutting blades 82A and 82B are attached to one ends of the cutting-side drive shafts 80A and 80B, and learning rollers 83A and 83B are provided so as to freely rotate by being distributed to both sides of the cutting blades 82A and 82B. ing. Also, at one end of the groove side drive shafts 84A, 84B, groove working blade bodies 86A, 86B are attached, and the learning rollers 87A, 87B are idled by being distributed to both sides of the groove processing blade bodies 86A, 86B. It is provided to roll freely. Here, the outer peripheral edges of the groove processing blades 86A and 86B have shapes having inclined blade surfaces (polishing surfaces) 86a and 86b on both the front and rear sides.

  Between the longitudinally moving bodies 40A and 40B and the blade holders 60A and 60B, the cutting-side drive shafts 80A and 80B of the cutting blades 82A and 82B and the grooves of the groove processing blades 86A and 86B are provided. Rotation drive units 90A and 90B that are linked to the side drive shafts 84A and 84B are provided. That is, transmission shafts 91A and 91B are provided on the longitudinal axial centers 59A and 59B, and the transmission shafts 91A and 91B are relatively rotatable on the blade holders 60A and 60B via the bearing members 92A and 92B. It is penetrated by.

  The output shafts 94A and 94B of the drive motors 93A and 93B provided on the vertical moving bodies 40A and 40B side, and the intermediate shaft provided rotatably on the vertical moving bodies 40A and 40B via bearing members 95A and 95B. 96A and 96B are linked and linked by belt transmission mechanisms 97A and 97B, and the intermediate shafts 96A and 96B and the other ends of the transmission shafts 91A and 91B are linked and linked by chain transmission mechanisms 98A and 98B. The drive gears 99A and 99B provided at one end of the transmission shafts 91A and 91B are provided on the cut-side passive gears 100A and 100B and the groove-side drive shafts 83A and 83B provided on the cut-side drive shafts 80A and 80B. It is always meshed with and interlocked with the groove-side passive gears 101A and 101B. The above 91A, 91B-101A, 101B, etc. constitute an example of the rotational drive units 90A, 90B.

  Therefore, the blade holders 60A and 60B are rotated 180 degrees forward and backward around the longitudinal axis 59A and 59B by the rotational movement devices 65A and 65B, and the rotational position is positioned by the rotational positioning devices 70A and 70B. Thus, the cutting blade bodies 82A and 82B and the groove processing blade bodies 86A and 86B can be replaced (alternatively) toward the square steel pipe 300. Then, the cutting blade bodies 82A and 82B and the groove processing blade bodies 86A and 86B are driven via the cutting side drive shafts 80A and 80B and the groove side drive shafts 84A and 84B by driving the rotation driving units 90A and 90B. Can rotate.

  The above 22A, 22B to 101A, 101B, etc. constitute an example of the steel pipe processing means 21A, 21B. A discharge device 105 for receiving and discharging chips and the like is provided below both the steel pipe processing means 21A and 21B, and the discharge device 105 is configured in a belt conveyor type or the like.

  1, 2, and 6 to 9, the steel pipe moving means 130 includes a clamping device 131 that can clamp the side portion 300 a at the starting end portion of the square steel pipe 300 in the thickness direction, and a conveyance path through the clamping device 131. A moving device 151 that reciprocates in the direction of 1, and a measuring device 160 that measures a distance L between the starting end side surface 300d of the square steel pipe 300 that is sandwiched and moved and the processing position K of the steel pipe processing means 21A, 21B. Thus, when the measuring device 160 measures the set distance LX, the movement by the moving device 151 is stopped.

  That is, the clamping device 131 has a plate-like movable body 132, and the lower portion of the movable body 132 is positioned in the gap between the upper portions of the two conveyor frames 3. Under the movable body 132, a support roller 133 guided to the conveyor frame 3 side, a lifting prevention roller 134, and a lateral guide roller 135 are provided so as to be freely rotatable at a plurality of locations, and thus the movable body 132 is The idler roller conveyor device 2 is supported and guided on the conveyor frame 3 side so as to be movable in the direction of the conveyance path 1. A pair of left and right (two) plate bodies 132a are arranged on the upper side of the movable body 132 so as to protrude toward the steel pipe processing means 21A and 21B.

  The movable body 132 is provided with a lower clamping body 136, an upper clamping body 140, a hydraulic cylinder device (an example of an approaching / separating device) 144, and the like. That is, the plate-like (one) lower sandwiching body 136 has the first horizontal axis 137 orthogonal to the direction of the transport path 1 in a state where the latter half is fitted between the pair of left and right plate bodies 132a. And is attached to the plate body 132a side so as to be swingable up and down. At this time, a spherical bearing 138 is fitted on the first horizontal shaft 137, and a lower sandwiching body 136 is fitted on the spherical bearing 138 so as to be rotatable within a certain range in the left-right direction. Further, the lower swing limit of the lower sandwiching body 136 is restricted by the stopper bodies 139 provided on both side surfaces of the intermediate portion of the lower sandwiching body 136 coming into contact with the upward surface of the plate body 132a.

  A pair of left and right (two) plate-like upper holding members 140 are provided, and the upper holding members 140 are positioned on both sides of the upper portion of the lower holding member 136, and the first horizontal shaft 137. The upper holding member 140 is attached to the lower holding member 136 so as to be swingable up and down. At that time, the spacer body 142 is interposed between the upper clamp members 140 so that the upper clamp members 140 are positioned outside the plate body 132a.

  The lower sandwiching body 136 and both upper sandwiching bodies 140 are disposed so as to protrude (toward) the steel pipe processing means 21A and 21B. An upward clamping portion 136 a is fixed to the protruding free end of the lower clamping body 136, and the downward clamping portion 140 a swings back and forth via the lateral pin 143 between the protruding free ends of both upper clamping bodies 140. It is provided freely. The hydraulic cylinder device 144 has a cylinder main body 145 connected between the middle parts of the upper clamping body 140 and a downward piston rod 146 connected between the middle parts of the lower clamping body 136. A compression spring 147 is interposed between the lower sides of the plate body 132a and the lower sandwiching bodies 136 for returning rotation and maintaining neutrality. In addition, a detected body (sensor dog) 148 is provided on one side of the lower sandwiching body 136, and a proximity sensor 150 is provided on the upper sandwiching body 140 on one side via a bracket 149. Here, the proximity sensor 150 is configured to detect the detected object 148 when both the holding bodies 136 and 140 are moved. The above 132 to 150 and the like constitute an example of the clamping device 131.

  The moving device 151 is provided at a lower upper portion of the rotating shaft 153, a servo motor 152 with a speed reducer provided at the upper part of the upper side of the movable body 132, a rotating shaft 153 linked to the motor shaft facing downward. The drive gear (pinion) 154 and the rack 155 provided on the conveyor frame 3 on one side so that the drive gear 154 always meshes with each other. The lower end of the rotating shaft 153 is rotatably supported by an upper portion of a horizontal plate 132b provided at the lower part of the movable body 132. The lower plate portion and the intermediate portion of the horizontal plate 132b are provided with a driven gear (pinion) 156 that always meshes with the rack 155 and a guide roller 157 that abuts against one smooth surface of the rack 155 so as to be freely rotatable. Yes. In addition, a stopper body 158 with which the rotating shaft 153 can come into contact is provided between the upper portions of the both conveyor frames 3, and the home position HP of the steel pipe moving means 130 is determined by this contact. The servo motor 152 is provided with a hydraulic pressure supply device 159. Therefore, the clamping device 131 can be reciprocated in the direction of the conveyance path 1 by forward / reverse driving of the servo motor 152. The above-described 152 to 159 and the like constitute an example of the moving device 151 that reciprocates the movable body 132.

  The measuring device 160 includes the servo motor 152 serving as a driving source for the moving device 151, a setting unit 161 for setting the measurement start position S according to the clamping position by the clamping device 131, and the square steel pipe 300 on the steel pipe processing means 21A and 21B side. An end face detection unit 175 for detecting the end face side face 300e, a servo mechanism (not shown), and the like. Then, by setting the measurement start position S by the setting unit 161, the forward movement of the clamping device 131 by the servo motor 152 is temporarily stopped and clamped, and then the measuring device 160 again sets the set distance LX by the servo motor 152. It is comprised so that it may move forward until it measures. Further, after the measuring device 160 measures the set distance LX and stops the movement by the moving device 151 and clamps the square steel pipe 300 by the steel pipe clamping means 111A and 111B, the holding device 131 is once opened and then held again. It is configured to let you.

  At that time, the setting unit 161 can abut on the push-pull body 165 provided on the movable body 132 side so as to be relatively movable in the direction of the conveyance path 1 with respect to the movable body 132 and the start end side end surface 300 d of the square steel pipe 300. A contact body 166 provided at the tip of the push-pull body 165, a biasing body 169 for projecting a contact surface 166a of the contact body 166 from a clamping position by the clamping device 131, and the biasing body 169. The detection body 170 is configured to detect that the push-pull body 165 has been retracted against this.

  That is, the plate body 162 in the direction along the transport path 1 is fixed to one side of the movable body 132 via the coupling body 163. Guide members 164 are provided at a plurality of locations (two locations) on one side of the plate body 162, and the rod-like push-pull body 165 is relatively movable in the direction of the conveyance path 1 while being supported and guided by the guide members 164. Is provided. A disc-like contact body 166 is provided at the tip (lower end) of the push-pull body 165, and the push-pull is pulled between the receiving body 167 on the contact body 166 side and the receiving body 168 on the plate body 162 side. A spring-like biasing body 169 is provided so as to be fitted on the body 165. At that time, when the push-pull body 165 is caused to project by the urging force of the urging body 169, the abutment surface 166a of the abutment body 166 is projected to the lower side with respect to the clamping position by the clamping device 131. ing.

  The detection body 170 is configured by providing a front fiber sensor 172 and a rear fiber sensor 173 via a support member 171 on the upper side (rear side) of the plate body 162. Both fiber sensors 172 and 173 are configured to detect a rear end portion (detected portion) 165a of the push-pull body 165. At this time, when the push / pull body 165 is protruded by the biasing force of the biasing body 169, the rear end portion 165a of the push / pull body 165 is more forward than the front fiber sensor 172, as shown by the solid line in FIG. The non-detection position. Then, when the push-pull body 165 is retracted against the urging force of the urging body 169, the rear end 165a is detected by the front fiber sensor 172 and then detected by the rear fiber sensor 173. become. At this time, the rear end 165a is detected by the front fiber sensor 172, so that the moving speed of the clamping device 131 by the servo motor 152 is switched to low speed, and the rear end 165a is detected by the rear fiber sensor 173. Thus, the forward movement of the clamping device 131 is temporarily stopped and the clamping device 131 is moved.

  The end face detection unit (photoelectric sensor) 175 is disposed on the main body 20 side with a certain separation distance M on the upper side with respect to the processing position K. Here, both the fiber sensors 172 and 173, the proximity sensor 150, the end face detection unit 175, and the like are connected to a servo mechanism (control unit), and the servo mechanism is connected to a servo motor 152 and the like. Note that the contact position of the contact body 166 is the lower side portion 300a, and is configured so as to be compatible with the square steel pipes 300 of all sizes. An example of the setting unit 161 is configured by the above 162 to 173 and the like.

  In FIGS. 2, 10, 12, 15, and 16, a lower end portion of the steel pipe clamping means 111B on the lower side is provided with a taking-out means 230 for a tip removal steel pipe (processed product) 300C. Here, the take-out means 230 includes a movable device 231 that moves the movable body 243 in the direction along the carry-out path 15 and in the vertical direction, and a clamp device 251 provided on the movable body 243.

  That is, the base frame 232 of the movable device 231 has a rectangular tube shape, and is continuously provided from the horizontal frame portion 20 c of the main body 20 along the carry-out path 15 toward the lower side. A forward / backward moving body 234 is provided to be movable along the carry-out path 15 via the LM guide 233. Sprockets 235 and 236 are respectively provided at both end portions along the carry-out path 15 on the base frame 232, and a gear motor 237 is linked to one of the sprockets 235, and is wound between the sprockets 235 and 236. A predetermined portion of the chain 238 is connected to the forward / backward moving body 234 via a connecting member 239. A vertical screw shaft 240 is rotatably provided on the inner surface side of the front / rear moving body 234, and a gear motor 241 that is linked to the upper end of the screw shaft 240 is provided at the upper end of the front / rear moving body 234. The movable body 243 is provided so as to be movable up and down via a nut body 242 screwed onto the screw shaft 240. Note that a proximity sensor unit 244 that can detect the ascending / descending position of the movable body 243 is provided in the forward / backward moving body 234.

  The frame body 252 of the clamp device 251 has a rectangular tube shape, and its rear end portion is attached to the lower end portion of the movable body 243 via the angle adjustment portion 253 with the length direction along the carry-out path 15. It has been. Then, an upper clamp body 254 is continuously provided from the upper surface of the front end portion of the frame body 252 to the front, and the lower clamp body 256 is provided so as to be swingable up and down via a horizontal shaft 255 provided in the front and rear middle of the upper clamp body 254. It has been.

  An upper claw body 254A for clamping is provided on the lower surface of the front end of the upper clamp body 254, and a lower claw body 256A for clamping is provided on the upper surface of the front end of the lower clamp body 256. Here, the lower clamp body 256 is configured to automatically swing so that the lower claw body 256A is separated from the upper claw body 254A with the rear side as the upper side due to a change in weight before and after the horizontal axis 255. Yes. At the rear end portion of the lower clamp body 256, an upward passive inclined surface 256a is formed, and a wedge body 257 is provided in which the downward inclined drive inclined surface 257a is in contact with the passive inclined surface 256a. Here, the wedge body 257 is configured to move back and forth by a cylinder device 258 provided on the frame body 252. A cylinder device 259 is provided on the side of the upper clamp body 254, and a push block 259A is provided on the forward piston rod.

  Accordingly, the movable body 243 is moved back and forth through the chain 238 and the forward / backward moving body 234 by forward / reverse driving of the gear motor 237, and the movable body 243 is moved through the screw shaft 240 and the like by forward / reverse driving of the gear motor 241. By moving up and down, the clamp device 251 can be moved in the direction along the carry-out path 15 and in the vertical direction. At that time, the vertical stop position can be controlled by detection of the proximity sensor unit 244. Further, by moving the wedge body 257 back and forth by the operation of the cylinder device 258, the drive inclined surface 257a can act on the passive inclined surface 256a, and the lower clamp body 256 can be swung up and down around the horizontal axis 255. Thus, the lower clamp body 256 can be moved toward and away from the upper clamp body 254. An example of the movable device 231 is configured by the above 232 to 244 and the like, an example of the clamp device 251 is configured by 252 to 259 and the like, and an example of the take-out means 230 is configured by 231 to 259 and the like.

  2 and 16, the drive roller conveyor device 16 forming the carry-out path 15 includes a pair of left and right conveyor frames 17, a group of drive rollers 18 provided between the conveyor frames 17, a chain transmission mechanism and a gear transmission. The motor 19 group etc. which are interlockingly connected to the drive roller 18 group through a mechanism. Lower drive rollers 8B and 11B in the drive roller conveyor device 7 are linked to the drive roller conveyor device 16 via a chain transmission mechanism and a gear transmission mechanism.

  A storage means 260 is provided outside one side of the carry-out path 15 to receive and store the long processed steel pipe (product) 300A, the short processed steel pipe (product) 300B, and the tip removal steel pipe 300C in parallel. Yes. That is, a narrow conveyor device 261 group for the long processed steel pipe 300A is provided on the lower side, a narrow conveyor device 262 group for the short processed steel pipe 300B is provided on the middle side, and the upper side is provided with the narrow conveyor device 262 group. A wide conveyor device 263 for the tip removing steel pipe 300C is provided. Here, the narrow conveyor device 261 group, the narrow conveyor device 262 group, and the wide conveyor device 263 are of a drive type, and are arranged so that the conveying direction is orthogonal to the direction of the carry-out path 15.

  Further, an extruding device 270 for moving the long processed steel pipe 300A, the short processed steel pipe 300B and the tip removing steel pipe 300C on the drive roller conveyor device 16 onto the storage means 260 is provided at the other side portion of the carry-out path 15. Yes. That is, the cylinder device 271 is provided on the conveyor frame 17 at two locations (single location or multiple locations) in the direction of the carry-out path 15, and an extruded body 272 is provided between the piston rods of the cylinder devices 271. And the extrusion body 272 is comprised so that the drive roller conveyor apparatus 16 may be crossed from the other side to the one side by extension movement of the cylinder apparatus 271. When the extruded surface of the extruded body 272 is formed by a group of rollers, it is possible to guide the long processed steel pipe 300A and the short processed steel pipe 300B that are carried out of the carry-out path 15. The above-described 261 to 263 and the like constitute an example of the storage unit 260, and 271 to 272 and the like constitute an example of the extrusion device 270.

  Hereinafter, the operation in the first embodiment described above, that is, the operation of obtaining the long processed steel pipe 300A of the long LA and the short processed steel pipe 300B of the short LB from the irregular steel pipe 300 having the uneven length Lα will be described. To do. The irregular length Lα of the square steel pipe 300 is [Lα> LA + LB].

  The square steel pipe 300 from the previous process (various forming machines) side is placed on the both support rail bodies 201 of the supply means 200 by transfer means (crane, forklift, etc.), and then both steel pipe feeding devices 202 are guided frame bodies 203. By supporting and guiding them in synchronization, the square steel pipe 300 group can be stored in parallel while being fed forward. That is, the square steel pipe 300 is lifted while being supported by the moving body 204 by raising the steel pipe lifting body, and after moving the moving body 204 to the transport path 1 side by the drive unit 205, the steel pipe lifting body is lowered. The square steel pipe 300 can be placed between the two support rail bodies 201.

  Then, the (steel) square steel pipe 300 close to the conveyance path 1 can be supplied to the idle roller conveyor device 2 by the transfer device 211 and can be pressed against the positioning means 181 by the pressing device 221. At this time, in the transfer device 211, the elevating body 214 is lowered by the extension movement of the cylinder device 215, and the lateral movement body 217 is moved with respect to the transport path 1 by the contraction movement of the cylinder device 218 as shown in FIG. 3. By moving backward, the support surface by the idle roller 216 group is positioned on the side of the support rail body 201 and below the support surface of the support rail body 201. Further, in the pressing device 221, as shown by the solid line in FIG. 3 or the solid line in FIG.

  In this state, when the square steel pipe 300 is moved to the conveyance path 1 side by the steel pipe feeding device 202, the lower part of the square steel pipe 300 comes into contact with the upper surface 226a of the pressing body 226, and the pressing body 226 is moved back and forth. It can be swung horizontally against the weight change, and can pass over the pressing body 226. Then, the square steel pipe 300 can be placed between the support rail bodies 201 (can be lowered). At this time, the pressing body 226 returns and swings in an inclined state so that the front end pressing surface 226b faces the side surface of the square steel pipe 300. .

  Next, by raising and lowering the lifting body 214 by the contraction movement of the cylinder device 215, the square steel pipe 300 placed between the support rail bodies 201 can be lifted through the idler rollers 216 group, and the cylinder device 218 As shown by the phantom line in FIG. 4, the rectangular steel pipe 300 can be positioned above the idle roller 5 group by projecting the laterally movable body 217 toward the conveyance path 1 side as shown by the phantom line in FIG. Can be carried in. When the square steel pipe 300 comes into contact with the positioning roller 187 at the time of such carrying-in, the idle roller 216 group rotates in contact with the downward surface of the square steel pipe 300, so that the protruding movement of the laterally movable body 217 is always smooth. Yes. After carrying in the intended state, the elevating body 214 is lowered as shown by the solid line in FIG. It can be transferred to a group of 5 rollers. Then, by moving the laterally movable body 217 backward from the conveyance path 1 side by the contraction movement of the cylinder device 218, the transfer device 211 can be returned to the initial state as shown by the solid line in FIG.

  Next, the lateral movement frame body 223 is moved closer to the transport path 1 by the extension movement of the cylinder device 224. As a result, as shown by the phantom line in FIG. 5, the pressing surface 226b of the pressing body 226 comes into contact with the side surface of the square steel pipe 300, and the square steel pipe 300 is laterally pressed. In this state, the rectangular steel pipe 300 can be positioned in the width direction by being sandwiched between the positioning roller 187 and the pressing body 226. Then, the pressing device 221 can be returned to the initial state as shown by the solid line in FIG. 5 by retreating the lateral movement frame 223 from the conveyance path 1 side by the contraction movement of the cylinder device 224.

  The steel pipe moving means 130 is applied to the square steel pipe 300 that has been positioned in the width direction in this way. That is, the steel pipe moving means 130 moves the clamping device 131 backward (reversely moves) in the direction of the transport path 1 by the reverse operation of the moving device 151 and positions the holding device 131 at the home position HP. The push-pull body 165 is caused to project by the urging force of the body 169 so that the rear end portion 165a of the push-pull body 165 is not in front of the front fiber sensor 172 as shown in the solid line in FIG. The detection position. The reversing clamping device 131 causes the lower clamping body 136 to swing downward around the first horizontal axis 137 until it is regulated by the stopper body 139 by extending the hydraulic cylinder device 144. The upper clamping body 140 can be swung upward around the second horizontal axis 141. As a result, the upward holding portion 136a and the downward holding portion 140a can be moved away from each other, and the proximity sensor 150 puts the detected body 148 into a non-detection state.

  In such a state, the proximity sensor 195 of the positioning means 181 detects the square steel pipe 300 positioned in the width direction, and the detection signal is input to the servo mechanism (controller). As a result, the clamping device 131 is moved forward (forward movement) in the direction of the transport path 1. That is, by driving and rotating the drive gear 154 engaged with the rack 155 by the positive drive of the servo motor 152, a moving force can be applied to the movable body 132, and the movement of the movable body 132 at this time is performed by the support roller 133. The driven gear 156 group is meshed with the rack 155 while being guided to the conveyor frame 3 side through the group, the lifting prevention roller group 134 and the lateral guide roller 135 group, and the guide roller 157 group is on one side of the rack 155. It can always be performed stably while being rotated against the smooth surface.

  By such advancement, first, the contact surface 166a of the contact body 166 contacts the start end side end surface 300d, and thereafter, the urging force is applied in a state where the push-pull body 165 is integrated (fixed) to the square steel pipe 300. The movable body 132 is moved forward against the body 169. When the front end of the downward holding portion 140a reaches the vicinity of the start-side end surface 300d, the rear end portion 165a of the push / pull body 165 is detected by the front fiber sensor 172 and input to the servo mechanism. The moving speed of the clamping device 131 by 152 can be switched to a low speed. Then, when the rear end portion 165a is detected by the rear fiber sensor 173 and input to the servo mechanism, the measurement start position S can be set by the setting unit 161, and the distance L from the measurement start position S to the processing position K can be set. Then, the forward drive of the servo motor 152 is stopped, and the forward movement of the clamping device 131 is temporarily stopped. At this time, the upward clamping part 136 a is opposed to the downward surface of the square steel pipe 300 from below, and the downward clamping part 140 a is positioned so as to protrude into the square steel pipe 300.

  When the rear end portion 165a of the push-pull member 165 is detected by the rear fiber sensor 173, the hydraulic cylinder device 144 is contracted by another instruction signal from the servo mechanism side, whereby the lower sandwiching member 136 is moved. Can be swung upward around the first horizontal axis 137 and the upper clamping body 140 can be swung downward around the second horizontal axis 141. As a result, the upward clamping part 136a and the downward clamping part 140a are moved closer to each other, and as shown by the phantom lines in FIG. 1, between the free ends of both the clamping bodies 136, 140, that is, the upward clamping part 136a and the downward clamping part By 140a, the side part 300a of the square steel pipe 300 can be clamped in the thickness direction. At this time, the proximity sensor 150 is in a detection state of the detected object 148, and by this detection, it is possible to confirm the holding of the side portion 300a of the square steel pipe 300.

  In addition, when clamping between the free ends of both clamping bodies 136 and 140, the upper clamping body 140 is arranged around the second horizontal axis 141 with respect to the thickness change of the side portion 300a according to the type of the square steel pipe 300. Can be handled automatically by swinging up and down and the downward holding portion 140a swinging around the horizontal pin 143. Further, when the square steel pipe 300 is formed, the spherical portion 138 is inclined with respect to the first horizontal axis 137 by the spherical bearing 138 with respect to the inclination in the left-right direction (width direction) and the thickness change in the left-right direction. When the sandwiching body 136 rotates within a certain range in the left-right direction, that is, as shown by an imaginary line in FIG. 8, both sandwiching bodies 136, 140 are within a certain range in the left-right direction with respect to the first horizontal axis 137. By rotating, it can be automatically dealt with, and at that time, return rotation and neutral maintenance can be dealt with by the compression spring 147. By these things, the clamping in the thickness direction of the side part 300a by the both clamping bodies 136 and 140 can always be performed stably and firmly.

  As described above, after the clamping of the rectangular steel pipe 300 with respect to the side portion 300a by the clamping device 131 is confirmed by the proximity sensor 150, the square steel pipe 300 is moved to the steel pipe clamping means 111A, 111B side. That is, by re-driving the servo motor 152, the clamping device 131 is moved forward (forward movement) in the direction of the conveyance path 1, and the square steel pipe 300 is pushed and moved through the clamping device 131.

  As shown in FIG. 17A, the cylinder device of the left and right clamping device 112 is used in the steel pipe clamping means 111A and 111B during the supply movement of the square steel pipe 300 by the steel pipe moving means 130, that is, before the processing operation of the square steel pipe 300. 113 is contracted and the clamp body 117 is moved apart, and the cylinder device 121 of the vertical clamp device 120 is contracted and the presser body 122 is moved upward, whereby both the steel pipe clamp means 111A and 111B are brought into an unclamping posture. . In both the steel pipe processing means 21A and 21B, as shown in FIG. 18, the laterally moving bodies 22A and 22B are moved away from the conveying path 1, and the cutting blade body 82A is rotated by the rotation of the blade holding bodies 60A and 60B. , 82B is directed toward the conveyance path 1, and the vertical moving body 40A is lowered in one steel pipe processing means 21A, and the vertical moving body 40B is raised in the other steel pipe processing means 21B. Further, the swinging supports 10A and 10B are swung by the cylinder devices 12A and 12B so that the driving rollers 11A and 11B are set to the raised positions similar to the driving rollers 8A and 8B.

  In this state, the square steel pipe 300 is moved in the length direction on the transport path 1 by the steel pipe moving means 130 as described above, and is thus transported to the steel pipe clamp means 111A, 111B side on the idle roller conveyor device 2. Then, in FIG. 2, the end surface detection unit 175 first detects the end-side end surface 300e of the square steel pipe 300, and the movement distance O and the separation distance M from the measurement start position S of the steel pipe moving means 130 at this time are subtracted from the distance L. Thus, that is, as [LMO = Lα], the uneven length Lα of the square steel pipe 300 can be measured by the measuring device 160. Further, after the square steel pipe 300 is moved and its end side end face 300e passes the processing position K, the measuring device 160 adds the long LA of the long processed steel pipe 300A and the short LB of the short processed steel pipe 300B. When the set distance LX is measured, that is, when [LX = LA + LB] is measured, the movement by the moving device 151 is stopped.

  Next, as shown in FIG. 17B, clamping is performed by the steel pipe clamping means 111A and 111B. That is, by extending the cylinder device 113 of the left and right clamp device 112, the clamp body 117 can be brought into contact with both side surfaces of the square steel pipe 300 to clamp the square steel tube 300 from both sides. By extending 121, the pressing body 122 can be lowered and brought into contact with the upper surface of the square steel pipe 300, and the square steel pipe 300 can be clamped from above and below between the drive rollers 8A and 8B of the drive roller conveyor 7. Then, as shown by phantom lines in FIG. 12, the swinging supports 10A and 10B are swung by the contraction movement of the cylinder devices 12A and 12B, and the driving rollers 11A and 11B are lowered directly below the driving rollers 8A and 8B. As a position, the location corresponding to the steel pipe processing means 21A, 21B is opened.

  Thus, after clamping by the steel pipe clamp means 111A and 111B, the clamping apparatus 131 is moved open. That is, by extending the hydraulic cylinder device 144, the lower sandwiching body 136 is swung downward, and the upper sandwiching body 140 is swung upward to move the upward sandwiching portion 136a and the downward sandwiching portion 140a away from each other. .

  As described above, in the state where the square steel pipe 300 is fixed at a predetermined position by the steel pipe clamping means 111A and 111B, the steel pipe processing means 21A and 21B are operated to cut and remove the tip. That is, by driving the drive motors 93A and 93B of the rotation drive units 90A and 90B, the intermediate shafts 96A and 96B are rotated via the belt transmission mechanisms 97A and 97B, and the transmission shafts are transmitted via the chain transmission mechanisms 98A and 98B. 91A and 91B are driven to rotate. Further, the cutting-side drive shafts 80A and 80B are rotated via the driving gears 99A and 99B and the cutting-side passive gears 100A and 100B, so that the cutting blades 82A and 82B are driven and rotated. The rotation of the transmission shafts 91A and 91B also rotates the groove-side drive shafts 84A and 84B via the drive gears 99A and 99B and the groove-side passive gears 101A and 101B. The cutting blades 86A and 86B are simultaneously driven and rotated.

  In this state, the cutting blades 82A and 82B are moved laterally and moved up and down. That is, from the state of FIG. 18, first, the motors 28A and 28B of the lateral movement devices 24A and 24B are driven to rotate the screw bodies 26A and 26B. At this time, the nut bodies 30A and 30B on the side of the lateral movement bodies 22A and 22B are moved. Since the screw bodies 26A and 26B are screwed together, the laterally movable bodies 22A and 22B can be laterally moved in the approaching direction with respect to the transport path 1. Then, as shown by the solid line in FIG. 19, when the tip of one cutting blade body 82A faces the lower corner portion 300b of one lower portion from the lower side, one lateral movement device 24A is stopped and the other cutting blade is cut off. When the tip of the body 82B faces the other upper corner portion 300b from above, the other lateral movement device 24B is stopped.

  Next, the motors 43A and 43B of the elevating devices 42A and 42B are driven to rotate the screw bodies 45A and 45B. At this time, the screw bodies 45A and 45B are screwed into the nut bodies 46A and 46B on the longitudinally moving bodies 40A and 40B side. By being combined, the vertically movable bodies 40A and 40B can be moved up and down. That is, by moving up one vertical moving body 40A, the cutting blade body 82A can be moved up together with the blade holding body 60A and the like, thereby rotating and driving as shown by the phantom line from the solid line in FIG. The tip of the cutting blade 82A can be sequentially cut from one lower corner 300b to one side 300a. Further, by lowering the other longitudinally moving body 40B, the cutting blade body 82B can be moved down together with the blade holding body 60B and the like, thereby rotating and driving as shown by the phantom line from the solid line in FIG. The leading end of the cutting blade 82B can be sequentially cut from the other upper corner 300b to the other side 300a. In the cutting by the raising / lowering operation by operating the lifting / lowering devices 42A and 42B, one cutting blade body 82A cuts one upper corner portion 300b and the other cutting blade body 82B is the other lower portion. It is stopped by cutting the corner 300b.

  Next, the motors 28A and 28B of the lateral movement devices 24A and 24B are driven to rotate the screw bodies 26A and 26B, thereby laterally moving the lateral movement bodies 22A and 22B in the approaching direction with respect to the transport path 1. That is, by laterally moving one of the laterally movable bodies 22A, the cutting blade body 82A can be laterally moved toward the other together with the blade holding body 60A and the like, so that, as shown in FIG. The tip of the cutting blade 82A that is rotationally driven can sequentially cut from one upper corner portion 300b to the upper side portion 300a. Further, by laterally moving the other laterally movable body 22B, the cutting blade body 82B can be laterally moved toward one side together with the blade holding body 60B and the like, so that, as shown in FIG. The tip of the cutting blade 82B that is rotationally driven can sequentially cut from the other lower corner portion 300b to the lower side portion 300a. As shown in FIG. 20, the cutting by the lateral movement by operating the lateral movement devices 24A and 24B is such that one cutting blade body 82A passes (passes through) the other upper corner 300b, The other cutting blade 82B is stopped by passing through the other lower corner 300b.

  In this manner, the lateral movement devices 24A and 24B are driven to move the lateral movement bodies 22A and 22B laterally, and the vertical movement devices 42A and 42B are driven to move the vertical movement bodies 40A and 40B up and down. The pair of cutting blades 82A and 82B that are rotationally driven are moved in the same direction (rightward rotation direction) around the square steel pipe 300 by the combined action with the action, and as shown in FIG. 300 tips can be cut. In addition, when the cutting blades 82A and 82B are cut laterally or moved up and down, the learning rollers 83A and 83B are moved while abutting on the outer surfaces of the side portions 300a and the corner portions 300b, Thereby, the cutting positions (cutting postures) by the cutting blades 82A and 82B can be made suitable, and damage to the cutting blades 82A and 82B can be reduced.

  Then, the cut end-removed steel pipe (processed product) 300 </ b> C is taken out to the carry-out path 15. At this time, when the lower steel pipe clamp means 111B is operated due to the uneven length Lα of the square steel pipe 300, as shown in FIG. 10, when the lower steel pipe clamp means 111B is operated, the lower steel pipe clamp means 111B is opened. After that, the tip-removing steel pipe 300C is carried out by the drive roller conveyor devices 7 and 16, and is positioned on the carry-out path 15 so as to face the wide conveyor device 263.

  As shown in FIG. 15, when the removal length LC is short and it is difficult to operate the lower steel pipe clamp means 111B, the upper steel pipe clamp means 111A is operated and the take-out means 230 is operated. That is, the take-out means 230 causes the movable device 231 to position the clamp device 251 at the lower end, raises the clamp device 251, tilts and swings the lower claw body 256 </ b> A downward, and retracts the push block 259 </ b> A. Waiting in the state.

  First, the drive of the gear motor 241 lowers the movable body 243 via the screw shaft 240 or the like, thereby moving the clamping device 251 downward as indicated by the phantom line in FIG. At that time, by controlling the lowering movement of the movable body 243 by the detection of the proximity sensor unit 244, the clamp device 251 can be stopped at a suitable lowering position according to the shape of the square steel pipe 300. Next, by driving the gear motor 237, the movable body 243 can be moved forward via the chain 238, the front and rear moving body 234, etc., and thus the clamp device 251 can be moved in the direction along the carry-out path 15. As a result, as shown by the solid line in FIG. 15, the upper clamp body 254 is positioned upward with respect to the upper side portion 300a in the tip portion of the square steel pipe 300, and the lower claw body 256A that is inclined and swung is moved downward. Can be located.

  Next, the wedge body 257 is advanced by the extension movement of the cylinder device 258, so that the driving inclined surface 257a acts on the passive inclined surface 256a, and the lower clamp body 256 can be swung upward around the horizontal axis 255, The lower clamp body 256 is moved closer to the upper clamp body 254, and the side portion 300a can be clamped via both the claw bodies 254A and 256A. In the state clamped by the clamp device 251 in this way, as described above, the steel pipe processing means 21A and 21B are operated to cut and remove the tip. Thus, the tip removing steel pipe 300 </ b> C cut can be held on the take-out means 230 side.

  Then, by the reverse drive of the gear motor 237, the movable body 243 is moved rearward via the chain 238, the forward / backward moving body 234, etc., so that the removal clamped by the clamp device 251 as shown by the phantom line in FIG. The tip-removed steel pipe 300 </ b> C having a short length LC can be stably carried out and can be positioned on the carry-out path 15 so as to face the wide conveyor device 263. Next, by retracting the wedge body 257 by the contraction movement of the cylinder device 258, the lower clamp body 256 can be swung downward around the horizontal axis 255, and thus the lower clamp body 256 is moved away from the upper clamp body 254. By doing so, the clamps by both claws 254A, 256A can be released. Then, by moving the push block 259A forward by the extension movement of the cylinder device 259, the tip removing steel pipe 300C can be pushed and moved to the front side and positioned in front of the clamp device 251. Thereafter, the movable body 243 can be moved upward through the screw shaft 240 or the like by reverse driving of the gear motor 241 to return to the initial standby position. Therefore, even if the removal length LC is a short tip removal steel pipe 300C, the removal means 230 can stably carry out the processing position K.

  As described above, the tip removal steel pipe 300C having a long removal length LC that is cut by operating the lower steel pipe clamp means 111B, and the tip removal steel pipe 300C having a short removal length LC taken out by the taking-out means 230, 15 is positioned opposite the wide conveyor device 263. The tip-removed steel pipe 300C is pushed onto the wide conveyor device 263 by an extruding body 272 that moves across the drive roller conveyor device 16 by the extension movement of the cylinder device 271, and is transported by the wide conveyor device 263 to be stored. Will be.

  In this way, groove processing is performed on the cut-side end surface 300f of the square steel pipe 300 from which the tip removing steel pipe 300C has been removed. That is, first, the clamp body 117 is moved by a small amount (retracted) by the operation of the sliding cylinder device 118 in the upper steel pipe clamping means 111A, so that the cutting side end face 300f is easily positioned. The vertical clamp device 120 is opened before a small amount of movement, and is clamped after a small amount of movement. And groove processing is performed.

  Next, after the blade holders 60A and 60B are slightly moved up and down from the state shown in FIG. 20, first, the rotational movement devices 65A and 65B are operated in a state in which the rotational positioning devices 70A and 70B are opened. The bodies 60A and 60B are rotated 180 degrees around the longitudinal axis 59A and 59B, and the cutting blade bodies 82A and 82B and the groove processing blade bodies 86A and 86B are replaced (changed in orientation). The groove processing blades 86A and 86B are directed toward the cutting end face 300e (conveyance path 1). Then, the rotational positions of the blade holders 60A and 60B are positioned by the rotational positioning devices 70A and 70B. Next, as shown by the solid line in FIG. 21, after the blade holders 60A and 60B are moved slightly up and down, the lateral movement and the up-and-down movement of the groove processing blades 86A and 86B are performed as described above. It is performed in the opposite direction to that of 82A and 82B. That is, from the state of the solid line in FIG. 21, the motors 28A and 28B of the lateral movement devices 24A and 24B can be reversely driven to reversely rotate the screw bodies 26A and 26B, thereby laterally moving the lateral movement bodies 22A and 22B.

  That is, as shown by the phantom line from the solid line in FIG. 21, by laterally moving one of the laterally movable bodies 22A, it is possible to laterally move the groove processing blade body 86A together with the blade holding body 60A and the like, Thus, as shown in FIG. 22, the inclined blade surface 86a of the grooved cutting blade body 86A that is rotationally driven sequentially opens from the other upper corner portion 300b to the upper side portion 300a on the cutting side end surface 300f. Can be pre-processed. Further, as shown by the phantom line from the solid line in FIG. 21, by laterally moving the other laterally movable body 22B, it is possible to laterally move the groove processing blade body 86B together with the blade holding body 60B and the like, As a result, as shown in FIG. 22, the inclined blade surface 86b of the grooved cutting blade 86B that is rotationally driven is sequentially opened from one lower corner portion 300b to the lower side portion 300a on the cutting end surface 300f. Can be pre-processed. As shown in the phantom line in FIG. 21, one groove processing blade body 86A moves one corner portion 300b on one upper side, as shown by the phantom line in FIG. The groove is machined, and the other groove machining blade 86B is stopped by groove machining the other lower corner 300b.

  Next, the motors 43A and 43B of the elevating devices 42A and 42B are reversely driven to reversely rotate the screw bodies 45A and 45B. At this time, the nut bodies 46A and 46B on the longitudinally movable bodies 40A and 40B side The vertical moving bodies 40A and 40B can be moved up and down by being screwed together. That is, one vertical moving body 40A is moved downward, and the groove processing blade body 86A can be moved downward together with the blade holding body 60A and the like as indicated by an imaginary line arrow in FIG. By the inclined blade surface 86a of the groove processing blade body 86A, it is possible to sequentially perform groove processing from one upper corner 1b to one side 300a. Further, the other longitudinally movable body 40B can be moved upward, and the groove processing blade body 86B can be moved upward together with the blade holding body 60B and the like as indicated by an imaginary line arrow in FIG. By the inclined blade surface 86b of the groove processing blade body 86B that is rotationally driven, it is possible to sequentially perform groove processing from one upper corner portion 300b to the other side portion 300a.

  In the groove processing by lifting and lowering by operating the lifting and lowering devices 42A and 42B, one groove processing blade body 86A passes (passes through) one lower corner 300b, and the other opening. The pre-processing blade body 86B is stopped by passing through the other upper corner portion 300b. As described above, groove processing can be performed on the cut-side end surface 300f of the square steel pipe 300, and thus the groove 300g can be formed at the tip portion. In addition, when performing groove processing by moving both the groove processing blades 86A and 86B laterally or moving up and down, the learning rollers 87A and 87B abut on the outer surfaces of the side portion 300a and the corner portion 300b and loosen. Accordingly, the machining position (machining posture) by the groove working blade bodies 86A and 86B can be made suitable, and damage to the groove working blade bodies 86A and 86B can be reduced. Thereafter, the laterally moving bodies 22A and 22B are returned to their original positions (home positions) in both the steel pipe processing means 21A and 21B. Further, the clamp body 117 is moved a small amount by the reverse operation of the sliding cylinder device 118 in the upper steel pipe clamp means 111A, and the cutting side end face 300f is returned to the original position.

  During the groove processing as described above or after the groove processing, the clamping device 131 is moved. In other words, by retracting the hydraulic cylinder device 144, the lower sandwiching body 136 is swung upward and the upper sandwiching body 140 is swung downward, so that the upward sandwiching portion 136a and the downward sandwiching portion 140a are moved closer to each other. Thus, the side portion 300a is sandwiched in the thickness direction. Before such a clamping operation by the clamping device 131 is performed, detection by the proximity sensor 195 is performed. That is, when the square steel pipe 300 is about to be displaced (swayed) in the lateral direction due to a load (pressure) at the time of cutting or groove processing, the displacement to the other side can be received by the positioning means 181, but to one side. Therefore, the proximity sensor 195 enters a non-detection state. At this time, the pressing device 221 is operated to correct the positioning of the square steel pipe 300 in the width direction, and thereafter, the clamping device 131 performs clamping.

  And the square steel pipe 300 which performed the groove process is conveyed on the conveyance path | route 5 by making the upper steel pipe clamp means 111A into a non-clamp attitude | position (clamp cancellation | release). That is, after confirming the sandwiching device 131 by the proximity sensor 150 with respect to the side portion 300a of the square steel pipe 300, the sandwiching device 131 is moved forward in the direction of the transport path 1 by re-driving the servo motor 152. The square steel pipe 300 is pushed and moved through the holding device 131 and moved in the length direction on the conveyance path 1. Then, when the moving amount of the long LA is measured by the measuring device 160, the movement by the moving device 151 is stopped.

  Thereafter, in the same manner as the removal operation of the tip removing steel pipe 300C described above, the clamping movement process of the steel pipe clamping means 111A, 111B, the cutting process by the steel pipe processing means 21A, 21B, the both cutting side end faces 300f by the steel pipe clamping means 111A, 111B. As shown in FIG. 23, the groove 300g is processed with respect to both cutting side end faces 300f by performing the separation movement process, the groove processing process by the steel pipe processing means 21A, 21B, etc. 300A and a short treated steel pipe 300B can be used. Accordingly, it is possible to easily and easily obtain the long processed steel pipe 300A of the long LA and the short processed steel pipe 300B of the short LB obtained by processing the groove 300g on the cutting side end face 300f.

  After the steel pipe clamping means 111A and 111B are opened, the steel pipe clamping means 111A and 111B are conveyed on the carry-out path 15 by the driving and conveying force of the driving roller conveyor devices 7 and 16 and the pushing and moving force by the steel pipe moving means 130. The steel pipe 300A is positioned to face the narrow conveyor device 261 group, and the short-treated steel pipe 300B is positioned to face the narrow conveyor device 262 group. The long processed steel pipe 300A and the short processed steel pipe 300B are placed on the narrow conveyor device 261 group or the narrow conveyor by the extruded body 272 that moves across the drive roller conveyor device 16 by the extension movement of the cylinder device 271. It is pushed onto the device 262 group and is transported and stored by the narrow conveyor device 261 group or the narrow conveyor device 262 group.

  As described above, the conveyance by the moving device 151 is stopped, the square steel pipe 300 is set to a predetermined position, and the clamping device 131 is once opened while the terminal portion of the square steel pipe 300 is clamped by the steel pipe clamping means 111A and 111B. Thus, even if the square steel pipe 300 is shaken by the clamp, the clamping device 131 side is not affected, and damage to the clamping device 131 side can be prevented. Then, after cutting the square steel pipe 300 by the steel pipe processing means 21A and 21B and performing the groove processing of the cut-side end face 300f, the holding apparatus 131 is moved again to perform the conveyance by the moving apparatus 151. it can.

  The processing of the groove 300g on the end-side end surface 300e of the square steel pipe 300 may be performed in advance before being carried into the supply means 200, or may be performed at the processing position K in the same manner. Further, in the above description, the long-treated steel pipe 300A and the short-treated steel pipe 300B are obtained by cutting at one intermediate position of the square steel pipe 300, but this can also be performed at two or more intermediate positions, and further intermediate cutting Processing may not be performed.

  Note that, at the time of cutting or groove processing by lateral movement as described above, normally, as shown in FIG. 13, both neutral maintaining hydraulic cylinder devices 34A, 34B, 35A, 35B are in a neutral state and are buffered. The hydraulic cylinder devices 36A and 36B are also in a neutral state, so that the normal lateral movement is always performed smoothly with a good balance. Then, during cutting or groove processing by such lateral movement, foreign matters such as chips, for example, the upper surface of the upper side portion 300a in the square steel pipe 300 (the uppermost surface of the square steel pipe 300) and the lower surface of the lower side portion 300a. Learning rollers 83A, 83B, 87A, 87B that have moved together with the cutting blades 82A, 82B and the groove processing blades 86A, 86B when attached (placed) on (the bottom surface of the square steel pipe 300), etc. Will get on the foreign body. As a result, an overload (brake) is applied to the movement of the horizontal moving bodies 22A and 22B via the vertical moving bodies 40A and 40B. At this time, one or both of the screw bodies 26A, 26B and the nut bodies 30A, 30B are damaged by the overload, or the cutting blade bodies 82A, 82B and the groove processing blade bodies 86A, 86B are damaged. There is a fear. However, when an overload is applied to the movement of the lateral moving bodies 22A, 22B, the neutral maintaining hydraulic cylinder device 34A or 35A, the neutral maintaining hydraulic cylinder device 34B, or the neutral maintaining hydraulic cylinder device 34B positioned in the moving direction of the movable bodies 31A, 31B or 35B is compressed (shrinks), and can absorb the overload.

Note that the outer dimensions and thicknesses of the target square steel pipes are various. For example, as shown by the phantom lines in FIG. 16, each means and device can be applied to a square steel pipe having a short outer dimension and a thin wall. .
As described above, in one place where the steel pipe processing means 21A and 21B are disposed, the rectangular steel pipe 300 is cut to form the cut end face 300f, and then the groove 300g can be processed on the cut end face 300f. As a result, the production line can be shortened, the occupation area can be reduced, and the steel pipe clamping means 111A and 111B corresponding to the steel pipe processing means 21A and 21B only need to be reduced. It can be expected. Further, by absorbing the overload by the buffering action by the overload buffer means 33A, 33B, the screw bodies 26A, 26B and the nut bodies 30A, 30B are damaged, the cutting blade bodies 82A, 82B and the groove processing blade body 86A, 86B damage can be prevented.

In the first embodiment described above, the rectangular steel pipe 300 is processed, but cutting and groove processing on a round steel pipe (an example of a steel pipe) can be similarly performed.
In the first embodiment described above, the measuring device 160 measures the set distance LX, stops the movement by the moving device 151, clamps the square steel pipe 300 by the steel pipe clamping means 111A, 111B, and then once opens the clamping device 131. However, this may be cut and grooved by the steel pipe processing means 21A and 21B while being held by the holding device 131.

  In the first embodiment described above, a form in which the screw bodies 26A, 26B, 45A, and 45B are used as the lateral movement devices 24A and 24B and the lifting and lowering devices 42A and 42B is shown. Or a type using a drive chain.

  In the first embodiment described above, the cutting blades 82A and 82B and the groove processing blades 86A and 86B are displaced by 180 degrees with respect to the longitudinal axis 59A and 59B with respect to the blade holders 60A and 60B. This is shown in a form in which it is distributed and arranged at the position, but this is distributed in two places displaced by 120 degrees, and another treatment body is disposed in the remaining one place, which is displaced by 90 degrees 4 A form in which two of the locations are distributed and arranged may be used. In these cases, the rotation angles of the blade holders 60A and 60B by the rotary device are suitably controlled.

  In the first embodiment described above, the cutting is performed by the cutting blades 82A and 82B when the blade holders 60A and 60B are moved forward, and the groove processing is performed by the groove processing blades 86A and 86B during the backward movement. However, this is a type in which groove processing is performed by the groove processing blades 86A and 86B while performing the same movement (equivalent to forward movement) after cutting and then returning to the home position. It may be.

  In the first embodiment described above, the rotation drive units 90A and 90B may be of a forward / reverse drive type. Corresponding to the pre-processing, the rotation direction can be changed and used properly.

BRIEF DESCRIPTION OF THE DRAWINGS It is Embodiment 1 of this invention, and is a side view of the steel pipe moving means part in the processing equipment of a steel pipe. It is a top view of the processing equipment of the steel pipe. It is a top view of the principal part of the supply means in the processing equipment of the steel pipe. It is a side view of the transfer apparatus part of the supply means in the processing equipment of the steel pipe. It is a side view of the pressing device part of the supply means in the processing equipment of the steel pipe. It is a top view of the steel pipe moving means part in the processing equipment of the steel pipe. It is a front view of the steel pipe moving means part in the processing equipment of the steel pipe. It is a partially notched front view of the principal part of the steel pipe moving means part in the processing equipment of the steel pipe. It is a cross-sectional top view of the steel pipe moving means part in the processing equipment of the steel pipe. It is a partially notched top view of the process means part in the processing equipment of the steel pipe. It is a front view of the process means part in the processing equipment of the steel pipe. It is a vertical side view of the processing means part in the processing equipment of the steel pipe. It is a partially notched top view of the overload buffer means part in the processing equipment of the steel pipe. It is a cross-sectional top view of the principal part of the process means part in the processing equipment of the steel pipe. It is a side view of the taking-out means part in the processing equipment of the steel pipe. It is a partially cutaway front view of the extraction means part in the processing equipment of the steel pipe. The clamp means part of the processing equipment of the steel pipe is shown, (a) is a front view at the time of non-clamping, (b) is a front view at the time of clamping. It is a partially cutaway front view of the principal part before the cutting | disconnection in the processing equipment of the steel pipe. It is a partially cutaway front view of the principal part at the time of the cutting start in the processing equipment of the steel pipe. It is a partially cutaway front view of the principal part at the time of completion | finish of a cutting | disconnection in the processing equipment of the steel pipe. It is a partially notched front view of the principal part at the time of blade switching in the processing equipment of the steel pipe. It is a partially notched top view of the principal part at the time of completion | finish of edge part groove processing in the processing equipment of the steel pipe. It is a partially notched top view of the principal part at the time of the completion | finish of intermediate part groove processing in the processing equipment of the steel pipe.

Explanation of symbols

1 Conveying path 2 Rolling roller conveyor device (conveyor device)
3 Conveyor frame 5 idle roller 7 drive roller conveyor device (conveyor device)
8A, 8B Drive rollers 10A, 10B Oscillating supports 11A, 11B Drive rollers 12A, 12B Cylinder device 13 Motor 15 Unloading path 16 Drive roller conveyor device (conveyor device)
20 Main body 20c Horizontal frame portion 21A, 21B Steel pipe processing means 22A, 22B Horizontal moving body 24A, 24B Horizontal moving device 28A, 28B Motor (forward / reverse rotation drive portion)
31A, 31B Movable bodies 33A, 33B Overload buffer means 40A, 40B Vertically moving bodies 42A, 42B Elevating devices 43A, 43B Motors (forward / reverse rotation drive unit)
50A, 50B Elevating and lowering balance device 59A, 59B Front / rear axis 60A, 60B Blade holder 62A, 62B Holding portion 65A, 65B Rotating device 70A, 70B Rotating positioning device 80A, 80B Cutting drive shaft (drive shaft)
82A, 82B Cutting blades 84A, 84B Groove side drive shaft (drive shaft)
86A, 86B Groove blades 86a, 86b Inclined blade surfaces (polished surfaces)
90A, 90B Rotation drive part 93A, 93B Drive motor 99A, 99B Drive gear 100A, 100B Cutting side passive gear 101A, 101B Groove side passive gear 105 Discharge device 111A, 111B Steel pipe clamp means 112 Left and right clamp device 117 Clamp body 120 Upper and lower clamp Device 122 Presser body 130 Steel pipe moving means 131 Clamping device 132 Movable body 136 Lower clamping body 136a Upward clamping part (free end)
137 First horizontal shaft 138 Spherical bearing 139 Stopper body 140 Upper clamping body 140a Downward clamping part (free end)
141 Second horizontal shaft 143 Horizontal pin 144 Hydraulic cylinder device (approaching / separating device)
148 Detected object 151 Moving device 152 Servo motor 154 Drive gear 155 Rack 159 Hydraulic pressure supply device 160 Measuring device 161 Setting unit 165 Push-pull body 165a Rear end (detected portion)
166 Abutment body 169 Energizing body 170 Detection body 172 Front fiber sensor 173 Rear fiber sensor 175 End face detection section 181 Positioning means 185 Slide body 187 Positioning roller 195 Proximity sensor 200 Supply means 211 Transfer device 221 Pushing device 230 Extraction means 231 Movable device 237 Gear motor 243 Movable body 251 Clamp device 254 Upper clamp body 254A Upper claw body 256 Lower clamp body 256a Passive inclined surface 256A Lower claw body 257 Wedge body 257a Drive inclined surface 258 Cylinder device 260 Storage means 261 Narrow conveyor device 262 Width Narrow conveyor 263 Wide conveyor 270 Extruder 300 Square steel pipe (steel pipe)
300a Side part 300d Start side end face 300e End side end face 300f Cutting side end face 300g Groove 300A Long-treated steel pipe (product)
300B Steel tube with short length (product)
300C Tip removal steel pipe (processed)
Home position K of steel pipe moving means 130 Processing position L Distance S Measurement start position LX Setting distance M Separation distance

Claims (7)

  A steel pipe moving means is provided in the upper side portion of the conveying path for conveying the steel pipe in the length direction, and a steel pipe processing means and a steel pipe clamping means are provided in the lower side portion, and the steel pipe processing means is a steel pipe clamping means. The clamped steel pipe is cut into a ring shape, and then a groove is machined on the cutting side end face. A measuring device that measures the distance from the end surface of the steel pipe being held and moved to the processing position of the steel pipe processing means. The steel pipe processing equipment is configured to stop the movement by the moving device when the value is measured.   The measuring device includes a servo motor that is a driving source of the moving device, a setting unit that sets a measurement start position according to a clamping position by the clamping device, and an end surface detection unit that detects the end surface of the steel pipe on the steel pipe processing means side. By setting the measurement start position by the setting unit, the forward movement of the clamping device by the servo motor is temporarily stopped and held, and then the servo motor is moved again by the servo motor until the measuring device measures the set distance. The steel pipe processing equipment according to claim 1, wherein the steel pipe processing equipment is configured.   The measuring device measures the set distance, stops the movement by the moving device, clamps the steel pipe by the steel pipe clamping means, and then is configured to open the clamping device once and then to clamp again. The steel pipe processing facility according to claim 1 or 2.   The conveying path is formed by a conveyor device, and the clamping device of the steel pipe moving means includes a movable body that is supported and guided on the conveyor frame side and is movable in the direction of the conveying path, and a first horizontal transverse to the direction of the conveying path. A lower sandwiching body attached to the movable body via a shaft so as to be swingable up and down, and an upper joint attached to the lower sandwiching body via a second horizontal axis parallel to the first horizontal axis It consists of a sandwiching body and an approaching / separating device provided between both sandwiching bodies, both sandwiching bodies facing the steel pipe processing means side, and configured to sandwich the starting end portion of the steel pipe between its free ends in the thickness direction. The steel pipe processing equipment according to any one of claims 1 to 3, wherein the movable body is reciprocated by a moving device.   A spherical bearing is externally fitted to the first horizontal axis, and the lower clamping body is externally fitted to the spherical bearing so that the clamping between the free ends of both clamping bodies rotates in the left-right direction via the spherical bearing. The steel pipe processing facility according to claim 4, which is configured freely.   The steel pipe processing facility according to any one of claims 1 to 5, wherein means for taking out the tip-removed steel pipe is provided at a lower portion of the steel pipe clamping means.   A pair of steel pipe clamping means is provided in the direction of the conveyance path with the steel pipe processing means in between, and a pair of left and right steel pipe processing means are provided across the conveyance path. A laterally movable body provided on the main body side so as to be laterally movable in a direction, a laterally moving device provided between the main body side and the laterally movable body, and a vertically movable member provided for the laterally movable body. A vertically movable body, an elevating device provided between the laterally movable body and the longitudinally movable body, and a longitudinally movable body provided so as to be rotatable around a longitudinal axis along the conveyance path. The blade holder, a cutting blade body and a groove processing blade body that are rotatably provided on the blade holder side via drive shafts along the longitudinal axis, respectively, and the cutting blade body and the groove processing It consists of a rotary drive unit that is linked to the drive shaft of the blade. Processing facilities of the steel pipe according to any one of claims 1 to 6,.

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