JP2006035351A - Device for machining tube material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for machining a tube material capable of significantly improving the manufacturing efficiency, and also, capable of reducing manufacturing costs and labor burden of a worker. <P>SOLUTION: The device is used for machining a tube material having machining sites such as boring, notching, and welding of arcuate plate on a tube at prescribed separate positions in the longitudinal direction of the steel tube. The device is provided with a carrying-in part for transversely transferring the steel tube in its rolling direction, a longitudinal feed part for feeding the transferred steel tube along its longitudinal feed line, a machining part provided in the middle of the longitudinal feed line, and a carrying-out part for transversely transferring the machined steel tube in its rolling direction after receiving it. The machining part includes a cutting or the like device, which is provided to the pre-stage side of the longitudinal feed line and executes machining or the like including boring, notching, and cutting, and an arcuate plate welding device provided to the post-stage side of the longitudinal feed line. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for processing pipe materials such as underground steel pipe piles for ground reinforcement for housing construction.

Patent Documents 1 and 2 disclose rotation penetration methods of steel pipe piles that are driven into the ground while rotating the steel pipe piles in order to strengthen the ground of the construction site when a house is constructed in a soft ground area or the like. According to this method, it is not necessary to embed concrete pillars after excavation by heavy machinery excavation bits, and there is no noise when laying piles for earth retaining, etc., and it is possible to perform ground reinforcement work at low cost in a short time. .
JP 2003-13443 A JP 2003-64675 A

  In the steel pipe pile described above, the longitudinal ends of the pile main bodies composed of a plurality of straight pipes are connected and connected, and a spiral wing is provided on the tip member body near the lower end, and a bit portion is formed at the tip. While connecting and assembling a steel pipe having a pipe diameter of 150 mm and a length of about 2 m to 6 m so as to be detachable, a pile length corresponding to the driving depth at each site is secured. 11 and 12 are exploded views of steel pipe piles. As shown in FIG. 11, a plurality of steel pipes 501 are connected in series, and a spiral blade 503 is fixed to a tip member body 502 near the lower end. A cutout 504 as a bit portion is formed at the tip (lower end) of the main body 502. As shown in FIG. 12, this steel pipe pile is formed with a connecting portion for fitting to each other in the longitudinally separated position of each steel pipe 501 and connecting them so as to be prevented from rotating. For example, two rectangular U-shaped notches 506 and 506 are formed at one end 505A of the steel pipe 501A (left side) in FIG. 12 so as to face the opposing position of the peripheral wall, and the notch remaining portion is opposed to the peripheral wall. Are formed with bolt holes 507 and 507 so as to form through holes. Then, the two arcuate plates 508 cover the corner U-shaped non-rotating notches 506 and 506 so as to cover the outer surfaces by applying patches to the patch shape from the outer surface. A cover is fixed to the outer surface of the notch. One end 505A is a receiving end 509. Furthermore, the steel pipe 501B having the same diameter and the same length as the steel pipe 501A forms a connection fitting portion 511 as a cylindrical portion having a certain length from the one end 510A, and at a position closer to the center side in the tube length direction. A circular arc plate 512 having a width h slightly smaller than the U-shaped cutouts 506 and 506 is fixed by welding at a position facing the circumferential direction approximately 180 degrees. And the bolt hole 513 is perforated in the substantially the same area | region of the circumferential direction of this circular arc board attachment position. Accordingly, the connection fitting portion 511 is inserted vertically from the receiving end portion 509 side, and the circular arc plate 512 serving as a stopper of the connection fitting portion 511 is engaged with the notch trace gap portions of the rotation stop notches 506 and 506. The bolts are inserted into the respective bolt holes and fastened at these positions, whereby the engagement position in the longitudinal direction of the pipe and the engagement position in the circumferential direction are determined, and the entire steel pipe pile is made as one pile body. It works when driven in a rotating ground. By the way, all the manufacture of the steel pipe pile used for the rotating steel pipe pile driving method effective for the foundation reinforcement of these soft grounds was conventionally performed manually. In this case, one steel pipe is a heavy article of several tens of kilograms, and at the separation position of one steel pipe, the bolt hole and the welding position of the corresponding arc plate for stopper or cover are determined. It is necessary to perform drilling, cutting, and welding, and it takes time to perform each rotation position and separation length position securely at the set position, resulting in high work costs and manufacturing costs. It was. In addition, there is a problem that handling work is heavy due to handling heavy objects, and it is difficult to shorten the working time. In addition, since the cylindrical tube is not stable, welding work is difficult, and there is a high risk of accidents during work.

  The present invention has been made in view of the above-described conventional problems, and one object thereof is a pipe material that can greatly improve manufacturing efficiency, reduce manufacturing cost, and further reduce the work labor burden of an operator. It is in providing the processing apparatus of.

  In order to achieve the above-described object, the present invention provides a pipe material processing apparatus (511, 509) having processing parts (511, 509) such as drilling, notching, arc plate welding, etc. of a pipe at a predetermined separation position in the longitudinal direction of the steel pipe. 1), a carry-in part (12) for laterally feeding in the rolling direction of the steel pipe (501), and a longitudinal feed part (14) for receiving the sent steel pipe and sending it along its longitudinal feed line (140) ), A processing section (16) provided in the middle of the longitudinal feed line to process a plurality of longitudinally spaced positions of the steel pipe, and a carry-out section (11) for receiving the processed steel pipe and laterally feeding it in the rolling direction of the steel pipe ( 18), and the processing unit (16) includes a cutting device (17) that performs cutting processing including drilling, notching, and cutting provided on the front side of the longitudinal feed line (140), Welding of the circular arc plate provided on the rear side of the direction feed line And location (19), and a processing apparatus of a tube material characterized by containing (1). The lateral feed configuration of the carry-in part 12 or the carry-out part 18 for carrying in and carrying out a long steel pipe in one direction to a longitudinal feed line as a processing line is not limited to a chain conveyor, but belt feed and gear feed as long as it can withstand practical use. be able to.

  At that time, the longitudinal feed line (140) includes an extrusion line (141) for extruding the steel pipe in the longitudinal direction so that the steel pipe can be processed by the cutting apparatus (17), and a post-processing by the cutting apparatus (17). A standby line (142) that pushes the steel pipe further in the longitudinal direction and waits, and a welding line (143) that welds the required arc plate by receiving the steel pipe that is parallel to the standby line and waits on the standby line by transfer. It is good to provide.

  Further, the welding line (143) is disposed near the edge of the steel pipe (501) and the rotation receiving part (56) for receiving the steel pipe after cutting and processing in a direction around the longitudinal axis of the steel pipe. Positioning means (58) for positioning the steel pipe in the rotational direction through holes (507, 513) drilled in the end portion may be provided.

  In addition, drilling / cutting is performed at two spaced locations on the extrusion line (141) of the longitudinal feed line (140) and the standby line (142), and the same peripheral part as the drilling or cutting notch on the welding line (143) It is preferable to carry out arc plate welding set to.

  The pipe material processing apparatus of the present invention is a pipe material processing apparatus having processing parts such as drilling, notching and arc plate welding of the pipe at predetermined spaced positions in the longitudinal direction of the steel pipe, and is transverse to the rolling direction of the steel pipe. A feed-in section that feeds and conveys, a longitudinal feed section that receives the fed steel pipe and sends it along the longitudinal feed line, and a process that is provided in the middle of the longitudinal feed line and processes a plurality of longitudinally spaced positions in the steel pipe And a carry-out part that receives the processed steel pipe and laterally feeds and conveys it in the rolling direction of the steel pipe, and the processing part includes drilling, notching, and cutting provided on the front side of the longitudinal feed line. This is a configuration including a cutting device for performing cutting processing and a welding device for a circular arc plate provided on the rear stage side of the longitudinal feed line. The longitudinal feed line includes an extrusion line for extruding the steel pipe in the longitudinal direction so that the steel pipe can be processed by a cutting apparatus, and a standby line for further extruding the processed steel pipe by the cutting apparatus in the longitudinal direction and waiting. And a welding line that is provided in parallel with the standby line and receives a steel pipe waiting on the standby line by transfer, and welds a required arc plate. As a result, it is possible to efficiently mass-produce steel pipes that are unstable and difficult to handle, such as pipes of cylindrical heavy objects that are separated from each other in the longitudinal direction and whose circumferential direction positions are determined, and reduction in manufacturing cost can be achieved. In addition, it is possible to avoid the risk of work by eliminating the labor of manual work.

  In addition, the welding line includes a rotation receiving portion that receives the steel pipe after cutting and processing in a direction around the longitudinal axis of the steel pipe, and a hole that is disposed near the end of the steel pipe and is perforated at the end. And positioning means for positioning the steel pipe in the rotational direction. Moreover, it is the structure which drills and cuts two places apart by the extrusion line of a longitudinal direction feed line, and a standby line, and performs arc plate welding set to the same circumference part as a perforation or a cut notch in a welding line. . As a result, it is possible to efficiently mass-produce steel pipes whose longitudinal positions are spaced apart and whose positions in the circumferential direction of the pipes are determined, and it is possible to effectively reduce the manufacturing cost. In addition, it is possible to avoid the risk of work by eliminating the labor of manual work.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings. However, the steel pipe as the object to be processed is the same as that shown in the prior art. Detailed explanation is omitted. FIG. 1 to FIG. 9 show an embodiment of the present invention. A pipe material processing apparatus 1 according to this embodiment is formed by drilling, notching, and arc plate welding of a pipe at a predetermined distance in the longitudinal direction of a steel pipe. It is the processing apparatus of the pipe material which has processing parts, such as. In the present embodiment, the pipe material processing apparatus 1 includes a carry-in portion 12 of a steel pipe 501, a longitudinal feed portion 14 that feeds a fed steel pipe along its longitudinal feed line 140, and a plurality of longitudinally spaced apart portions of the steel pipe. A processing unit 16 for processing and a carry-out unit 18 for feeding and transporting the processed steel pipe are provided. Further, the processing unit 16 includes a cutting device 17 including drilling, notching, and cutting provided in the previous stage of the longitudinal feed line, and a arc plate welding device 19 provided in the subsequent stage of the longitudinal feed line. By including, efficient machining of heavy steel pipes that require drilling, circumferential positioning accuracy, and welding and joining processes at separated positions, and labor reduction are realized.

  In FIG. 1, a large rectangular plane-shaped carrying section 12, a longitudinal feed line 140 provided in parallel adjacent to the feed end edge of the carry-in section and extended in one direction, and a feed end of the longitudinal feed line Each part is arranged so as to be U-shaped in a plan view by a large rectangular surface-like unloading part 18 which is provided in parallel adjacent to the part side and is the same as the carry-in part 12. The apparatus is arranged so that it can be installed indoors in a small space so that even a heavy object can be fed in the longitudinal direction.

  In this embodiment, the carrying-in part 12 consists of a chain conveyor which carries out lateral conveyance in the rolling direction of the steel pipe 501, and the chain 22 is respectively connected to the plurality of sprockets 20 arranged at spaced apart positions with the X direction as the longitudinal axis direction. The conveyor surface 26 which is adjusted and is the upper surface of these chains via the drive motor 24 and the common shaft 23 is moved in the Y1 direction. An L-shaped piece that is bent and connected in an L-shape is fixed to a connecting chain of the chain, so that an object can be easily placed on the upper surface. Thereby, a long object can be received in a planar shape on the upper surface side of the chain conveyor. A plurality of L-shaped plate-shaped steel pipe charging bases 28 opened in the Y1 direction are attached to the loading edge side of the planar carrying-in portion 12. As shown in FIG. 2, the chain conveyor is supported by a support frame 30 at a height of about 1 meter from the floor surface FL, for example.

  One or a plurality of steel pipes that have been fed in the rolling direction on the feed end side of the carry-in section 12 are provided in parallel so as to extend along the feed-end side edge of the rectangular transport surface of the straight carry-in section. A transfer unit 32 that transfers to the direction feed line 140 side is installed. The transfer unit 32 is a transfer device that moves the steel pipe 501 that has been laterally fed in the rolling direction in a lateral feed shape and places it on the adjacent longitudinal feed line 140 side. In this embodiment, the transfer unit 32 is A drive base 34 incorporating a motor (not shown), a slider member 36 supported by the drive base so as to be movable in the horizontal direction, and an air cylinder 40 for supporting the rod with the receiving portion 38 on the tip end side of the slider member so as to move up and down. ,including. The presence of a steel pipe on the vertical wall of the fall-preventing end frame 42 provided on the feed end side of the carry-in portion 12 is detected by a sensor (not shown), and the transfer operation is performed in response to a transfer instruction from the main control panel 44. . In the present embodiment, each steel pipe that hits the end frame is transferred to the longitudinal feed line 140 side.

  The longitudinal feed section 14 is a longitudinal feed apparatus that receives the steel pipe 501 transferred from the carry-in section 12 and feeds it along the longitudinal feed line. In the embodiment, the longitudinal feed section 14 is, for example, 6 A longitudinal feed line 140 as a guide device for receiving a long steel pipe of about a meter in a longitudinally long component and moving and guiding it in the longitudinal linear direction as it is, and a travel drive device 46 that drives the longitudinal feed line 140 to travel on the longitudinal feed line 140. And including.

  The longitudinal feed line 140 includes a rolling receiving portion 50 supported at a predetermined height position from the floor surface by the support frame 48, and a straight pipe is mounted on the mounting rolling portion of the rolling receiving portion 50. The steel pipe is received and guided in a straight line toward the X1 direction. In the embodiment, the rolling receiving part 50 opposes the roller receiving part 52 including a pair of rollers provided so as to freely roll around each axis opened in a V-shape, and the tops of the triangular frustum pieces. The rotating piece receiving portions 54 including a pair of rotating pieces that are supported rotatably around the horizontal axis in a state where they are held in an alternating manner, each having a V-groove shaped receiving portion and stable. Then, the steel pipe is moved in a straight traveling guide.

  The traveling drive unit 46 detects and clamps the track 461 provided in parallel along the longitudinal feed line 140 and the steel pipe 501 transferred on the longitudinal feed line 140, and in this state, the longitudinal feed line 140, and a conveyance driving device 462 for conveying the surface. The transport driving device 462 is installed on a track 461 including two parallel rails and is self-propelled by a motor 463, and is supported by the self-propelled 464 and has an arm on the side of the adjacent longitudinal feed line 140. And a clamp device 465 attached to the tip of the arm. A micro switch (not shown) is attached to the tip of the clamp device 465. The steel tube travels from the rear side, hits the rear end of the steel pipe, and a part of the pipe end is sandwiched between chuck members to drive the steel pipe.

  The longitudinal feed line 140 will be described in detail. The longitudinal feed line 140 includes an extrusion line 141, a standby line 142, and a welding line 143. The extrusion line 141 is a conveyance guide means in which a rolling receiving portion is disposed on the upper surface side provided in parallel so that the steel pipe can be transferred and separated at the linear feed end edge of the carry-in portion 12, and in particular, this extrusion line. Reference numeral 141 denotes a guide line that is arranged parallel to the start 56 and is driven to travel by gripping the steel pipe by the travel drive device 46. The steel pipe is cut and processed by the cutting apparatus 17 by being pushed and moved in the longitudinal direction on the guide line.

  The standby line 142 is standby guide means for further extruding the steel pipe after being processed by the cutting apparatus in the longitudinal direction and waiting, and has the same height as the rolling receiving portion 50 as the extrusion line 141 and linearly. The steel pipe which is extended and sent from the extrusion line 141 is continuously linearly guided as it is. As shown in FIG. 8, the standby line 142 is provided with a plurality of drive rollers 53 driven by a motor, and the steel pipe extruded from the extrusion line is separated from the processing site of the plasma welding machine and conveyed to the standby position. In the present embodiment, a gap is provided between the extrusion line 141 and the standby line 142 to some extent (for example, about 1 m when the total length of the line is 17 m), and the cutting device 17 is installed in the vicinity of the gap portion. Thus, substantially both end portions of the steel pipe traveling on the longitudinal feed line 140 are continuously processed.

  The welding line 143 is a welding stage line that is provided in parallel with the standby line 142 on the carry-out lateral feed side, receives the steel pipe 501 waiting on the standby line by transfer, and welds the required arc plate 512. It has the same height as the line 142 and is disposed in parallel and has an extrusion line and an axially rolling receiving part 56. The steel pipe that is on standby in the standby line 142 is laterally transferred and transferred in the carry-out direction by the transfer device 110 described later, and is placed on the rolling contact portion 56 about the axis of the welding line 143. The rolling contact part 56 around the axis receives the steel pipe so as to freely rotate in the direction around the longitudinal axis of the steel pipe, instead of receiving freely in the longitudinal direction of the steel pipe.

  In the vicinity of one end of the welding line 143, a rotary positioning device 58 for a steel pipe disposed on the welding line is installed. The rotary positioning device 58 is a positioning means for welding and joining the arc plate 512 to a position around the pipe at a predetermined separation position of the steel pipe drilled, notched or cut by the cutting device 17. In the form, as shown in FIGS. 1 and 4, the rotary positioning device 58 is supported by a support base 60 that can be moved up and down and left and right by a cylinder mechanism, and is provided so as to be rotatable around a horizontal axis. 62, a positioning mechanism 64 that is supported by the rotating body and engages with a bolt hole 513 of the steel pipe on the axis-rotation receiving portion 56 to set the steel pipe at a predetermined position around the pipe, and a sensor 66 that detects the bolt hole And including. The positioning mechanism 64 has an insertion rod 68 that is driven by driving means such as an air cylinder device so that the tips are opposed to each other and are driven to move forward and backward, and the tip of the insertion rod 68 is inserted into the bolt hole. And positioning means for locking and holding at a predetermined welding position around the pipe. The sensor 66 is attached to the distal end portion of the insertion rod 68 and detects the position of the hole. The around-axis rolling receiving portion 56 includes a pair of parallel rollers 561 and 561 that are rotatable about the longitudinal direction of the welding line.

  The processing unit 16 is a processing device that is provided in the middle of the longitudinal feed line 140 and processes a plurality of longitudinally spaced positions of the steel pipe. The processing unit 16 includes a cutting device 17 and a welding device 19. ing. The cutting device 17 is a cutting device that is provided on the front side of the longitudinal feed line 140 and performs cutting processing such as drilling, notching, and cutting. As described above, in the present embodiment, the extrusion line is an extrusion line. 141 and the standby line 142, the separation position is determined by a linear feed operation by the traveling drive device 46 of the extrusion line, and further, the bolt holes 513 shown in FIGS. A character-shaped notch 506 is formed. In the embodiment, the cutting device 17 uses a so-called plasma welder, and has a plurality of shaft joints as shown in FIG. 3, and a robot main body capable of moving and adjusting the support end 72 of the tip arm 70 in almost all directions. 74 and a torch portion 76 that is partially gripped by the support end 72 and emits a plasma arc in an arbitrary direction. The torch portion 76 has an electrode rod, a plasma gas discharge port, and the like, and radiates high-temperature, high-speed plasma arc to the workpiece to perform high-precision cutting or the like. In the present embodiment, bolt hole drilling as shown in FIG. 12, a U-shaped notch for rotation prevention, and a cutting process for making the steel pipe length constant are performed. 1 and 7, a sensor 77 is provided in the vicinity of the cutting device 17 for detecting the position of the tip of the steel pipe that is fed linearly on the line.

  The welding device 19 is a welding processing device which is provided on the rear side of the longitudinal feed line and welds and joins the arc plate 512 to a predetermined distance and a circumferential position of the steel pipe transferred from the standby line 142 to the welding line 143. In this embodiment, as shown in FIG. 4, a robot body 82 having a plurality of shaft joints and capable of moving and adjusting the support end 80 of the tip arm 78 in almost all directions, and a part of the support end 80. An arc welding machine that is gripped and incorporates an electrode, an inert gas, and a wire supply unit in an arbitrary direction is applied. In particular, the welding device 19 of the present embodiment is provided with a handling device 84 for the arc plate 512 that is branched and supported from the support end 80 of the tip arm 78, and the arc is at least shown in FIG. A function of freely moving the advancing / retreating direction R1 to the tube and a horizontal movement R2 while holding the plate 512, and a function of performing gripping operation by moving the arc plate 508 forward and backward from the width direction by the grip portion 88, and performing a releasing operation. Have. The tube access portion 86 is composed of an air cylinder device having an extendable rod 90 that supports the grip portion 88, and the grip portion 88 has a pinching member 92 that is driven forward and backward by the air cylinder. In this embodiment, the welding device 19 is provided on the guide rail 83 so as to be linearly movable along an extrusion line via a motor (not shown).

  In FIGS. 1 and 6, the carry-out portion 18 is a transverse feed conveyance or discharge means for receiving the steel pipe after welding of the arc plate in the welding line 143 and laterally feeding it in the rolling direction of the steel pipe, and the conveyance direction is the carry-in portion. The configuration is substantially the same except that it is in the opposite direction to 12. That is, it has a chain conveyor structure having a quadrangular conveyance surface having the same surface size as the carry-in portion, and is driven by the motor 94.

  Further, in FIGS. 1 and 6, there is provided a transfer device 110 that performs lateral feed transfer from the standby line 142 to the welding line 143 side or from the welding line 143 to the carry-out portion 18. The transfer device 110 of this embodiment includes a drive base 96 having a motor (not shown), a slider member 98 supported by the drive base so as to be movable in the horizontal direction, and receiving portions 100 at two positions on the front end side of the slider member. And two air cylinders 102A and 102B for supporting the rod so as to be movable up and down. The air cylinders 102 </ b> A and 102 </ b> B can be moved up and down at the same intervals as the standby line 142 set at equal intervals, the welding line 143, and the welding line 143 and the edge side end frame 104 of the carry-out portion 18. Is attached. Accordingly, as shown in FIG. 6, in a state where the steel pipe is received by the receiving portion 100, the slider member 98 is moved once from the standby line to the welding line and from the welding line to the conveying portion by a single lateral movement operation. Can be done.

  1, 3 and 106 are pressing devices having a clamp member 108 for lowering and suppressing the steel pipe on the longitudinal feed line during processing by the processing unit device by driving the cylinder, and FIG. A waste storage box 112 at the time of cutting is a magazine in which a plurality of arc plates 508 are stored, and is provided on a rail so as to be movable along a longitudinal feed line. Reference numeral 114 denotes an auxiliary control panel that controls the movement of the welding device 19 and the rotation positioning device 58, and 116 denotes an auxiliary control panel that controls the movement of the traveling drive device 46 and the transfer unit. It is electrically connected to the main control panel 44. The main control panel 44 controls the drive timing of the conveyor of the carry-in unit 12 and the carry-out unit 18 and other movements of the entire apparatus.

  Next, with reference to FIGS. 7 to 9 and FIG. 10, the processing procedure of the pipe material processing apparatus of the present embodiment will be described together with the operation. In FIG. 10, for example, a steel pipe having a pipe diameter of 14 mm and a length of about 6 m is put into the carry-in section 12 and is transported laterally by a chain conveyor, and the tip steel pipe is brought into contact with the end frame 42 on the carry-in end side (S1, S2 ). The presence of a steel pipe on the vertical wall of the fall prevention end frame 42 provided on the feed end side of the carry-in section 12 is detected by a sensor (not shown), and the first transfer is received in response to a transfer instruction from the main control panel 44. The loading device is activated, and each steel pipe is transferred to the extrusion line 141 side (S3). Next, the conveyance drive unit 462 of the travel drive unit 46 blips the rear end (S3) of the steel pipe with the grip member at the front end and pushes the steel pipe forward on the extrusion line via the motor 463 as shown in FIG. (S5). When the steel pipe further advances from the state of FIG. 7, the sensor 77 detects the position of the tip (510A) (see FIG. 12) (S6), and the clamp member 108 of the pressing device 106 descends to hold down the steel pipe. In this state, the bolt hole 513 is drilled in the diameter direction at a position of about several tens of centimeters from the pipe end 510A (S7). Thereafter, the steel pipe presser is released, and the steel pipe is sent in the longitudinal direction via the transport driving device 462. When the rear end portion is detected by the sensor, the steel pipe is stopped (S8). Next, the plasma torch of the cutting device 17 is driven to process the receiving end 509 side which is the other end side of the same steel pipe. In this receiving end portion 509 portion, the U-shaped notch 506 for rotation prevention in FIG. 12 (S9) and the bolt hole drilling process to the non-notched portion are performed (S10). Next, since a 6 m long steel pipe is usually supplied with a surplus length of about 20 mm to 30 mm, the steel pipe is cut into a ring shape at a position 6 m long from the pipe end detected by the sensor 77 (S11). As a result, the cutting work is completed and then sent to the welding process by the welding apparatus.

  The steel pipes that have been cut and processed are driven by the drive roller 53 to leave the cutting apparatus from the mounting state up to the middle part of the steel pipe and are completely positioned on the standby line 142 (S12). When the welding operation of the arc plate with respect to the steel pipe previously supplied to the welding line is completed, the transfer device 110 is activated, and the steel pipe on the standby line is transferred onto the welding line and on the welding line. The welded steel pipe is simultaneously transferred to the carry-out surface side of the carry-out part 18. The steel pipe on the welding line 143 is supported so as to be rotatable about the axis by the axis-rotation receiving portion 56. At this time, the position of the hole to be drilled is detected by the sensor 66 and the rotating body 62 of the rotation positioning device 58 ( (S14) After the detection, the insertion rod 68 is inserted into the hole position of the steel pipe, and the steel pipe is set at the welding position around the axis by rotating it by the required angle in the circumferential direction (S15) (see FIG. 9). Next, the welding device 19 grips the arc plate 512 in the magazine via the handling device 84 (S16), and arranges the arc plate, for example, at a position where it is set in the horizontal direction as shown in FIG. Then, the stopper arc plate on the insertion end side of the steel pipe is welded (S17). This position is the same portion as the circumferential direction region of the bolt hole 513. Next, the welding device 19 moves on the guide rail 83 so as to return to the extrusion line direction, and performs welding of the circular arc plate 508 on the receiving end 509 side of the steel pipe. At this time, the arc plate 508 is welded so as to cover the outer surface of the U-shaped notch 506, and the arc inner surface of the arc plate is joined to a position where the outer surface of the steel pipe and the curved surface are continuous (S18). Therefore, when the arc plate is welded and fixed in an outer fitting shape, the U-shaped notch is a corresponding arc-shaped recess as shown in FIG. In response to the welding processing end signal, the main control plate activates the transfer device 110, and the steel pipe on the standby line goes to the welding line to perform new welding, and the steel pipe after welding performs the entire processing work. It is complete | finished and it transfers to the carrying out surface of the carrying out part 18 (S19) (S20). Thereafter, the same processing is continuously performed, and the processing of special steel pipes is efficiently realized. In the embodiment, the carry-in part, the longitudinal feed line for processing, and the carry-out part are arranged in a U-shape, but the carry-out direction of the carry-out part is Z-shaped as the rolling direction of the same steel material as the carry-in part. It is good also as a structure which pays out so that it may become a shape. For example, it is good also as a structure which combined these arbitrarily by the space margin in a factory.

  As described above in detail, in the tubular material processing apparatus according to the present embodiment, a tubular material that is unstable and difficult to handle is a cylindrical heavy material tube that is separated in the longitudinal direction and whose circumferential position is determined. Material supply, processing, and material unloading are performed in the order of rolling-in, longitudinal feed, and rolling-out, and mass production is performed efficiently in the longitudinal feed process that requires accuracy at the remote position and the circumferential position. Can do. In addition, since the machining line is set at a position shifted in parallel via the standby line, cutting and welding of the arc plate can be efficiently processed and manufactured with less time loss in the work. Furthermore, since the position around the axis of the pipe is positioned and welded using the hole for inserting the bolt, the positioning can be performed smoothly and reliably in a short time, which contributes to shortening the working time.

  The pipe material processing apparatus of the present invention described above is not limited to the configuration of only the above-described embodiment, and may be arbitrarily modified without departing from the essence of the present invention described in the claims. Also good.

  The pipe material processing apparatus of the present invention is suitably applied to the processing of pipe materials such as underground steel pipe piles for ground reinforcement for housing construction, but besides that, a building having processing parts on both ends thereof with pipes It can also be applied to the processing of structural members and the like.

It is a plane layout figure of the processing device of the pipe material concerning one embodiment of the present invention. It is an AA arrow directional view of the apparatus of FIG. It is a BB line arrow directional view of FIG. It is CC line arrow line view of FIG. It is a partially omitted enlarged sectional view showing a section of a welding line as viewed in the direction of the rotational positioning device. It is a DD line arrow line view of FIG. It is operation | movement explanatory drawing in an extrusion line part. It is operation | movement explanatory drawing in a standby line part. It is operation | movement explanatory drawing in a welding line part. FIG. 2 is a flowchart of the operation of the embodiment of the apparatus of FIG. It is a partially omitted vertical cross-sectional explanatory drawing of the pipe material to be processed. FIG. 12 is an exploded perspective view partially omitting the pipe material of FIG. 11.

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Carry-in part 14 Longitudinal sending part 16 Processing part 17 Cutting | disconnection apparatus 18 Unloading part 19 Welding apparatus 32 Transfer part 58 Rotation positioning apparatus 64 Positioning mechanism 68 Inserting rod 84 Handling apparatus 110 Transfer apparatus 140 Longitudinal direction feed line 141 Extrusion line 142 Standby line 143 Welding line 501 Steel pipe 506 U-shaped notch 508, 512 Arc plate 507, 513 Bolt hole

Claims (4)

A pipe material processing apparatus having a processing part such as drilling of the pipe, a notch, and arc plate welding at a predetermined separation position in the longitudinal direction of the steel pipe,
A carry-in part for laterally feeding in the rolling direction of the steel pipe;
A longitudinal feed section that receives the fed steel pipe and sends it along its longitudinal feed line;
A processing section that is provided in the middle of the longitudinal feed line and processes a plurality of longitudinally spaced positions of the steel pipe;
An unloading section that receives the processed steel pipe and laterally feeds and conveys it in the rolling direction of the steel pipe;
The processing section includes a cutting device for performing cutting processing including drilling, notching and cutting provided on the front side of the longitudinal feed line, and a welding device for a circular arc plate provided on the rear side of the longitudinal feed line. And a pipe material processing apparatus. The longitudinal feed line is an extrusion line for extruding the steel pipe in the longitudinal direction so that the steel pipe can be processed by a cutting device,
A standby line for further extruding the steel pipe after being processed by the cutting device in the longitudinal direction and waiting;
The pipe material processing apparatus according to claim 1, further comprising: a welding line that is provided in parallel with the standby line and receives a steel pipe waiting on the standby line by transfer, and welds a required arc plate. In the welding line, a rotation receiving portion for receiving the steel pipe after cutting and processing in a direction around the longitudinal axis of the steel pipe,
The pipe material processing according to claim 1 or 2, further comprising positioning means for positioning in the rotational direction of the steel pipe through a hole disposed near the end of the steel pipe and drilled in the end. apparatus. Drilling and cutting at two separate points on the extrusion line of the longitudinal feed line and the standby line,
The pipe material processing apparatus according to any one of claims 1 to 3, wherein arc plate welding set at the same peripheral portion as the drilling or cutting notch is performed in the welding line.

Images