Full-automatic steel pipe cutting machine suitable for various outer diameters

Abstract

According to the full-automatic steel pipe cutting machine suitable for various outer diameters, positioning of the axis of a steel pipe is achieved through movement of a centering wheel, an end idler wheel and a conveying wheel, positioning of the end of the steel pipe is achieved through an end module, meanwhile, circumferential rotation of the steel pipe is achieved through a rotating wheel, and axial movement of the steel pipe is achieved through the conveying wheel. The design can flexibly adapt to steel pipes with different outer diameters, and meanwhile, the cutting head of the cutting module can be adjusted, so that the steel pipes with different outer diameters can be cut. The design of conveying through the conveying wheels is adopted, and is different from the traditional design that the steel pipe is pushed at the end away from the end module, the design structure is simpler, meanwhile, the steel pipe conveying device can adapt to steel pipes of any length, the steel pipe can be output through the conveying wheels when the steel pipe is cut to the last section, and use is very convenient. Meanwhile, due to the rotary opening and closing design of the upper shell, loading and positioning of the steel pipe are greatly facilitated, and compared with the traditional design that the upper shell cannot be rotationally opened and closed, the mode is obviously more convenient and faster to use.

Description

Technical Field

[0001] The invention relates to a steel pipe cutting technology, in particular to a full-automatic steel pipe cutting machine suitable for various outer diameters. Background Art

[0002] At present, laser cutting is mainly used for cutting and punching of steel pipes. The operation process is roughly as follows: 1. The feeding mechanism outputs the piles of steel pipes one by one and then transports them to the clamping station; 2. The clamp at the clamping station clamps and positions the steel pipe; 3. The steel pipe is transported to the processing station and cut by the laser cutting machine. During the processing, the steel pipe does not rotate, but the cutting head of the laser cutting machine rotates around the steel pipe for processing; 4. After processing is completed, the workpiece is transported to the output station and then output through the output device.

[0003] This processing method is first of all complicated, requiring feeding, input, clamping, processing, and output, which also leads to a relatively large structure. Secondly, it is generally only applicable to the cutting of steel pipes of one model (outer diameter). For steel pipes of different outer diameters, the corresponding components need to be replaced, which leads to higher procurement, use, and maintenance costs.

[0004] At present, there is no steel pipe cutting machine that can be flexibly used in a larger diameter range, which has become a technical problem that urgently needs to be solved. Summary of the invention

[0005] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a fully automatic steel pipe cutting machine suitable for various outer diameters, which can flexibly adapt to steel pipes of various outer diameters.

[0006] To achieve the above object, the present invention provides a fully automatic steel pipe cutting machine suitable for various outer diameters, comprising a frame and a cutting part, wherein the cutting part is installed on the frame and cuts the steel pipe; The cutting part includes at least one clamping and conveying module and at least one cutting module. The clamping and conveying module is used to clamp the steel pipe, align the axis, and convey it to the end module. The cutting module cuts the steel pipe through a cutting head to complete the cutting of the steel pipe. The pinching module comprises a pinching frame, a lower shell and an upper shell, wherein the lower shell is fixedly mounted on the pinching frame, the pinching frame is mounted on the frame, and the upper shell is assembled with the lower shell; The upper shell and the lower shell are respectively provided with a centering half disk, the centering half disk is provided with a centering arc groove, and a centering gear is also installed on the outer wall of the centering half disk, the centering gear is meshed with the centering drive gear for transmission, the centering drive gear is sleeved on the centering motor shaft, the centering motor shaft is installed in the centering motor, and the centering motor is installed on the clamping and feeding frame; The upper shell and the lower shell are also respectively provided with semi-fixed disks, the semi-fixed disks are provided with semi-fixed disk grooves, the semi-fixed disk grooves are engaged with and slidably assembled with the centering rod, the centering rod is provided with a centering pin, and a centering wheel is provided on one end of the centering rod which is inserted into the inner side of the centering half disk, the centering pin is inserted into the centering arc groove and slidably assembled with the centering wheel; there are at least two centering rods which are evenly distributed in the circumferential direction of the centering half disk; The centering rod is directly or indirectly assembled with the conveying frame, a conveying motor is installed on the conveying frame, a conveying motor shaft of the conveying motor is connected with a conveying wheel shaft through a conveying belt to form a belt transmission mechanism, the conveying wheel shaft is installed on the conveying frame, and a conveying wheel is fixedly mounted on the conveying wheel shaft.

[0007] As a further improvement of the present invention, one end of the lower shell and the upper shell are hingedly assembled through a hinge shaft; the upper shell is also hinged to one end of the opening and closing electric cylinder shaft, the other end of the opening and closing electric cylinder shaft is installed in the opening and closing electric cylinder, and the outer shell of the opening and closing electric cylinder is hinged to the clamping and feeding frame.

[0008] As a further improvement of the present invention, the centering rod is fixedly assembled with the sliding frame, and a sliding frame is arranged on the sliding frame. The sliding frame is engaged with and slidably assembled with the conveying frame block, and the conveying frame block is installed on the conveying frame. A conveying frame shaft is installed on the conveying frame, and one end of the conveying frame shaft is fitted with a conveying spring and then passes through the sliding frame, and the conveying spring provides elastic resistance to the movement of the conveying frame toward the sliding frame.

[0009] As a further improvement of the present invention, the centering motor shaft is assembled with the input shaft of the centering encoder, and the centering encoder is installed on the clamping and feeding frame.

[0010] As a further improvement of the present invention, the cutting part further comprises at least one receiving component, and the receiving component is used to receive the delivered steel pipe; The material receiving assembly includes a material receiving platform, a material receiving seat, a material receiving bottom plate, a material receiving side plate, and a material receiving screw. The material receiving platform is installed on the frame, and the material receiving seat is installed on the material receiving platform. The material receiving chute is provided on the material receiving platform. The material receiving chute is engaged with and slidably assembled with a material receiving slider, and the material receiving slider is provided on the material receiving side plate. The material receiving side plate is sleeved outside the material receiving screw and assembled with it through threaded engagement. The material receiving screw is installed on the material receiving seat. The material receiving slider or the material receiving side plate is assembled with one end of the material receiving input shaft.

[0011] As a further improvement of the present invention, the fully automatic steel pipe cutting machine further comprises an end module, wherein the end module is used to detect whether the steel pipe is tightened in place and rotate the steel pipe; The end module comprises an end frame, an end box, and an end electric cylinder. The end electric cylinder and the end frame are mounted on the frame. The end sliding shaft is mounted on the end frame. The end box is sleeved outside the end sliding shaft and assembled with it. The end electric cylinder shaft of the end electric cylinder is assembled with the end box. The end box includes a first box plate and a second box plate. The first box plate is assembled with a fixed disk. A fixed disk groove is provided on the fixed disk. The fixed disk groove is engaged with and slidably assembled with a radial rod. An end roller is installed on the end of the radial rod that enters the inner side of the fixed disk. A radial rod pin is also installed on the radial rod. The radial rod pin is installed in a radial arc groove and is engaged with and slidably assembled with the radial arc groove. The radial arc groove is provided on the radial disk. A radial gear is sleeved on the outside of the radial disk. The radial gear is meshed with a radial drive tooth for transmission. The radial drive tooth sleeve is fixed on the radial motor shaft. The radial motor shaft is installed in the radial motor and the radial motor is installed on the second box plate.

[0012] As a further improvement of the present invention, the end box also includes a third box plate, on which a collision switch is installed. The signal of the collision switch is connected to the industrial computer and the trigger end of the collision switch is opposite to the end of the trigger shaft. One end of the trigger shaft passes through the second box plate and is assembled with the shaft ring of the end face bearing after the trigger spring is installed. The seat ring of the end face bearing can be pressed against the end of the steel pipe.

[0013] As a further improvement of the present invention, two rotating wheel assemblies are further installed on the first box plate, the rotating wheel assemblies include a yielding slide rail, a yielding slide groove is arranged on the yielding slide rail, the yielding slide groove is engaged with the yielding slider and slidably assembled, a third rotating shaft is installed on the yielding slider, a rotating belt passes around the first rotating shaft, the second rotating shaft, and the third rotating shaft to form a belt transmission mechanism; the yielding slider is assembled with one end of a tension spring, the other end of the tension spring is directly or indirectly assembled with the first box plate, and the tension spring applies an elastic force to pull the yielding slider away from the first rotating shaft; The second rotating shaft is mounted on the wheel seat and fixedly assembled with the wheel, the wheel seat is sleeved outside the wheel screw and assembled with it through threaded engagement, the threads of the two wheel seats engaged with the wheel screw are in opposite directions, and the wheel seat is directly or indirectly engaged and slidably assembled with the first box plate, the wheel screw is mounted on the first box plate, the wheel screw is connected to the wheel motor shaft through a wheel belt and forms a belt transmission mechanism, the wheel motor shaft is installed in the wheel motor, and the wheel motor is mounted on the second box plate; One of the first rotating shafts passes through the first box plate and is connected to the output shaft of the rotating motor, and the rotating motor is mounted on the second box plate; the other first rotating shaft passes through the first box plate and is assembled with the input shaft of the rotary encoder, and the rotary encoder is mounted on the second box plate; The rotating belt is wound around two first rotating shafts and at least one auxiliary belt shaft to form a belt transmission mechanism, and the auxiliary belt shaft is installed on the second box plate.

[0014] As a further improvement of the present invention, the cutting module includes an outer frame, a transverse frame, and a lifting frame. The outer frame is installed on the cutting frame, the cutting frame is installed on the frame, the transverse frame is installed in the outer frame, and the outer frame is respectively provided with transverse frame slide rails at the upper and lower ends of the transverse frame, the transverse frame slide rails are engaged with and slidably assembled with the corresponding transverse frame sliders, the transverse frame sliders are installed on the transverse frame, a transverse frame block is provided on the transverse frame, the transverse frame block is sleeved on the transverse screw and assembled with the transverse screw by threaded engagement, the transverse screw is installed on the outer frame, and one end of the transverse screw is connected to the transverse motor shaft of the transverse motor; the transverse frame block is also assembled with the transverse input shaft, the transverse input shaft is installed in the transverse displacement sensor, and the transverse displacement sensor and the transverse motor are both installed on the outer frame; The transverse frame is respectively equipped with a lifting electric cylinder, a lifting displacement sensor, and a lifting optical axis. The lifting electric cylinder shaft of the lifting electric cylinder and the lifting input shaft of the lifting displacement sensor are respectively assembled with the lifting frame. The lifting frame is equipped with a guide tube and a longitudinal slide rail. The guide tube can be axially slidably mounted on the lifting optical axis. The longitudinal slide rail can be axially slidably mounted on the cutting slide rail, and the cutting slide rail is installed on the cutting head. The cutting head is also assembled and fixed with the longitudinal electric cylinder shaft of the longitudinal electric cylinder and the longitudinal input shaft of the longitudinal displacement sensor. The longitudinal electric cylinder and the longitudinal displacement sensor are both installed on the lifting frame.

[0015] As a further improvement of the present invention, the fully automatic steel pipe cutting machine also includes a feed rack, which is installed on the frame and conveys steel pipes to the cutting part one by one; the feed rack is also equipped with a first feed plate and a second feed plate, the second feed plate is used to block the steel pipes on the feed rack from passing through, and the first feed plate is used to block a steel pipe located between the first feed plate and the second feed plate from passing through.

[0016] The beneficial effects of the present invention are: The present invention adopts the movement of the centering wheel, the end roller and the conveying wheel to realize the positioning of the steel pipe axis, the end module is used to realize the positioning of the steel pipe end, and the rotating wheel is used to realize the circumferential rotation of the steel pipe and the conveying wheel is used to realize the axial movement of the steel pipe. This design can flexibly adapt to steel pipes with different outer diameters, and the cutting head of the cutting module can also be adjusted, so as to cut steel pipes with different outer diameters.

[0017] The present invention adopts a conveying wheel design, which is different from the traditional design of pushing the steel pipe at one end away from the end module. This design structure is simpler and can adapt to any length of steel pipe. When the steel pipe is cut to the last section, the steel pipe can be output by the conveying wheel, which is very convenient to use. At the same time, the rotating opening and closing design of the upper shell greatly facilitates the loading and positioning of the steel pipe. Compared with the traditional design that the upper shell cannot be rotated and opened, this method is obviously more convenient and quick to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ; Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 ; Figure 3 It is a cross-sectional view of the present invention at the center plane where the axis of the collision switch 550 is located; Figure 4 yes Figure 3 Enlarged view of F1 in the middle; Figure 5 yes Figure 3 Middle AA section view; Figure 6 yes Figure 3 Middle BB section view (partial); Figure 7 It is a schematic diagram of the partial structure of the feeding belt 810; Figure 8 It is a partial structural schematic diagram of the present invention Figure 1 ; Fig. 9 It is a partial structural schematic diagram of the present invention Figure 2 ; Fig.10 is a schematic structural diagram of a material receiving assembly 200; Fig.11 is a schematic structural diagram of an end module 400; Fig.12 This is a schematic diagram of a portion of the structure of the end module 400. Figure 1 ; Fig.13 This is a schematic diagram of a portion of the structure of the end module 400. Figure 2 ; Fig.14 This is a schematic diagram of a portion of the structure of the end module 400. Figure 3 ; Fig.15 This is a schematic diagram of a portion of the structure of the end module 400. Figure 4 ; Fig.16 is a schematic structural diagram of the pinching and conveying module 300 (the upper shell 330 is closed); Fig.17 is a schematic structural diagram of the pinching and conveying module 300 (the upper shell 330 is opened); Fig.18 is a partial structural diagram of the pinching and conveying module 300 (the upper shell 330 is opened); Fig.19 is a partial structural diagram of the pinching and conveying module 300 (the upper shell 330 is closed); Fig. 20It is a schematic diagram of the structure of the conveying frame 380 and the sliding frame 370; Fig.21 It is a partial structural schematic diagram of the centering half plate 350 and the centering rod 360; Fig. 22 is a schematic structural diagram of a cutting module 600; Fig.23 is a schematic diagram of the structure of the cutting module 600 (excluding the cutting bracket 150); Fig.24 This is a schematic diagram of the partial structure of the cutting module 600 Figure 1 ; Fig.25 This is a schematic diagram of the partial structure of the cutting module 600 Figure 2 ; Fig.26 This is a schematic diagram of the partial structure of the cutting module 600 Figure 3 ; Fig. 27 This is a schematic diagram of the partial structure of the cutting module 600 Figure 4 . DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] See also Figure 1-Figure 6 , Figure 8-Figure 9 The fully automatic steel pipe cutting machine of this embodiment includes a frame 110, a feeding rack 120, and a cutting part. The feeding rack 120 is installed on the frame 110 and conveys steel pipes 01 one by one to the cutting part, and the cutting part is installed on the frame 110 and cuts the steel pipes 01.

[0022] The cutting part includes a plurality of receiving components 200, at least one clamping and conveying module 300, an end module 400, and at least one cutting module 600. The receiving components 200 are used to receive the steel pipe 01 sent from the feeding rack 120, the clamping and conveying module 300 is used to clamp the steel pipe, align the axis, and convey it to the end module 400, the end module 400 is used to detect whether the steel pipe is tightened in place and rotate the steel pipe 01, and the cutting module 600 cuts the steel pipe through the cutting head 770 to complete the cutting of the steel pipe.

[0023] The frame 110 is also provided with a guide trough 140 near the cutting module 600 , and the lowest end of the guide trough 140 is located above the storage box 160 , so that the cut steel pipes can be guided into the storage box 160 for storage. The storage box 160 is installed on the frame 110 .

[0024] See also Figure 1-Figure 2 , Figure 7 In order to prevent the steel pipes 01 on the feeding rack 120 from getting stuck and being unable to enter the cutting part one by one, the present embodiment has a penetrating feeding belt groove 121 on the feeding rack 120, a feeding belt rack is installed at the feeding belt groove 121, a feeding belt 810 is installed on the feeding belt rack, and the feeding belt 810 is driven to run by a feeding belt shaft 820, one end of the feeding belt shaft 820 is connected to the output shaft of the feeding belt motor 510. After the feeding belt motor 510 is started, the feeding belt 810 can be driven to run, so that when the steel pipe 01 is stuck, the steel pipe 01 can be loosened by the running of the feeding belt 810, so that the steel pipes 01 can enter the cutting part one by one.

[0025] The feed rack 120 is also equipped with a first unloading plate 131 and a second unloading plate 132. The second unloading plate 132 is used to block the steel pipe on the feed rack 120 from passing through, and the first unloading plate 131 is used to block a steel pipe located between the first unloading plate 131 and the second unloading plate 132 from passing through. When in use, the second unloading plate 132 is first moved down to a position not exceeding the end surface of the feed rack 120 so that the steel pipe closest to the first unloading plate 131 rolls toward the first unloading plate 131 and enters between the first unloading plate 131 and the second unloading plate 132, and then the second unloading plate 132 is moved up so that the second unloading plate 132 clamps the steel pipe between the first unloading plate 131 and the second unloading plate 132 and other steel pipes cannot pass through the second unloading plate 132. When it is necessary to input the steel pipe 01 into the cutting part, the first unloading plate 131 is moved down so that the steel pipe 01 rolls toward the cutting part under the action of gravity and finally enters the cutting part. Then repeat the above steps to supply the steel pipes 01 to the cutting part one by one. In this embodiment, the up and down movement of the first unloading plate 131 and the second unloading plate 132 can be achieved by different electric cylinders, air cylinders, oil cylinders, etc.

[0026] See also Figure 1-Figure 6 , Figure 8-Figure 10The material receiving assembly 200 includes a material receiving platform 210, a material receiving seat 240, a material receiving bottom plate 220, a material receiving side plate 230, and a material receiving screw 250. The material receiving platform 210 is installed on the frame 110, and the material receiving seat 240 is installed on the material receiving platform 210. The material receiving platform 210 is provided with a material receiving chute 211, and the material receiving chute 211 is engaged and slidably assembled with a material receiving slider 231. The material receiving slider 231 is arranged on the material receiving side plate 230. A plurality of balls 201 can be spherically installed on the end surfaces of the material receiving bottom plate 220 and the material receiving side plate 230 that are in contact with the steel pipe 01. The balls 201 are used to reduce the friction between the steel pipe and the material receiving bottom plate 220 and the material receiving side plate 230 in the circumferential rotation direction and the axial movement direction.

[0027] The material receiving side plate 230 is sleeved outside the material receiving screw 250 and assembled with it through a thread. The material receiving screw 250 is installed on the material receiving seat 240 so that it can rotate in a circular manner but cannot move axially. The material receiving slider 231 or the material receiving side plate 230 is assembled with one end of the material receiving input shaft 541, and the other end of the material receiving input shaft 541 is installed in the material receiving potentiometer 540, which is installed on the material receiving seat 240 or the material receiving platform 210. When the material receiving screw 250 is rotated, the material receiving side plate 230 can be driven by the thread to move along the material receiving chute 211 to adjust the distance between the material receiving side plate 230 and the material receiving bottom plate 220, and at the same time, the material receiving input shaft 541 is driven to move so that the material receiving potentiometer 540 detects the specific displacement and inputs the signal into the industrial computer. This method is mainly used to accommodate steel pipes with different outer diameters. If the receiving side plate 230 is fixed, the axes of the steel pipes with different outer diameters will have a large offset relative to the receiving bottom plate 220 and the receiving side plate 230, which will cause difficulties in subsequent axis alignment and transportation.

[0028] See also Figure 1-Figure 9 , Figure 11-Figure 15 The end module 400 includes an end frame 410, an end box 420, and an end electric cylinder 520. The end electric cylinder 520 and the end frame 410 are mounted on the frame 110. The end sliding shaft 411 is mounted on the end frame 410. The end box 420 is sleeved outside the end sliding shaft 411 and can be axially slidably assembled with it. The end electric cylinder shaft 521 of the end electric cylinder 520 is assembled with the end box 420. After the end electric cylinder 520 is started, it can drive the end electric cylinder shaft 521 to axially extend and retract, thereby driving the end box 420 to slide along the end sliding shaft 411. This design is mainly to achieve cutting of steel pipes of different lengths, such as Figure 3 In the middle, moving toward the seat can cut longer steel pipe sections, and moving to the right can cut shorter steel pipe sections (steel pipe 01 is cut into sections).

[0029] The end box 420 includes a first box plate 421, a second box plate 422, and a third box plate 423. A collision switch 550 is installed on the third box plate 423. The signal of the collision switch 550 is connected to the industrial computer and the trigger end of the collision switch is directly opposite to the end of the trigger shaft 430. One end of the trigger shaft 430 passes through the second box plate 422 and is assembled with the shaft ring of the end bearing 432 after the trigger spring 501 is installed. The seat ring of the end bearing 432 can be pressed against the end of the steel pipe 01, so that the steel pipe 01 rotates relative to the trigger shaft 430 through the end bearing 432. The trigger spring 501 applies a thrust to the end bearing 432 away from the second box plate 422 so that the trigger shaft 430 moves away from the collision switch 550 when the end bearing 432 is not pressed, and the collision switch 550 is not triggered at this time. This design mainly utilizes whether the collision switch 550 is triggered to determine whether the end of the steel pipe 01 is pressed into place with the end bearing 432, thereby determining whether the end of the steel pipe and the end module 400 are positioned. After positioning is completed, the steel pipe 01 can be cut off.

[0030] The first box plate 421 is assembled with the fixed disk 470, and the fixed disk 470 is provided with a fixed disk groove 471, and the fixed disk groove 471 is engaged with and slidably assembled with the radial rod 480. An end roller 481 is installed on the end of the radial rod 480 that enters the inner side of the fixed disk 470, and a radial rod pin 482 is also installed on the radial rod 480. The radial rod pin 482 is installed in the radial arc groove 491 and is engaged and slidably assembled therewith. The radial arc groove 491 is provided on the radial disk 490, and the outer part of the radial disk 490 is sleeved with a radial gear 862, which meshes with the radial drive tooth 861 for transmission. The radial drive tooth 861 is sleeved and fixed on the radial motor shaft 581, and the radial motor shaft 581 is installed in the radial motor 580 and the radial motor 580 is installed on the second box plate 422. After the radial motor 580 is started, the radial disk 490 is driven to rotate. The radial disk 490 cooperates with the radial rod pin 482 through the radial arc groove 491 to drive the radial rod 480 to slide along the fixed disk groove 471 relative to the diameter direction of the radial disk 490, so as to drive the end roller 481 to move away from or closer to the axis of the radial disk 490. In the initial state, the end roller 481 is at the position farthest from the axis of the radial disk 490. Once the steel pipe 01 pushes the trigger shaft 430 to trigger the collision switch 550, the radial motor 580 is started, thereby driving the end roller 481 to move toward the steel pipe 01 until the end roller 481 is pressed against the outside of the steel pipe 01 to complete the alignment of the axis of the steel pipe 01 and the radial disk 490. There are at least three end rollers 481 that are evenly distributed in the circumferential direction of the radial disk 490, so that a uniform clamping force in the circumferential direction can be applied to the outer wall of the steel pipe 01. The use of the end roller 481 can also effectively reduce the friction resistance of the steel pipe to the steel pipe when it rotates circumferentially.

[0031] Two rotating wheel assemblies are also installed on the first box plate 421, and the rotating wheel assembly includes a yielding slide rail 460, and a yielding slide groove 461 is provided on the yielding slide rail 460, and the yielding slide groove 461 is engaged with and slidably assembled with the yielding slider 8331, and the yielding slider 8331 is installed with a third rotating shaft 833, and the rotating belt 830 passes around the first rotating shaft 831, the second rotating shaft 832, and the third rotating shaft 833 to form a belt transmission mechanism; the yielding slider 8331 is assembled with one end of the tension spring 502, and the other end of the tension spring 502 is directly or indirectly assembled with the first box plate 421, and the tension spring 502 applies an elastic force to pull the yielding slider 8331 away from the first rotating shaft 831.

[0032] The second rotating shaft 832 is mounted on the wheel seat 450 and fixedly assembled with the wheel 451. The wheel seat 450 is sleeved outside the wheel screw 452 and assembled with it through threaded engagement. The threads of the two wheel seats 450 and the wheel screw 452 are engaged in opposite directions, and the wheel seat 450 is directly or indirectly engaged and slidably assembled with the first box plate 421. The wheel screw 452 can rotate in a circular manner and cannot move axially on the first box plate 421. The wheel screw 452 is connected to the wheel motor shaft 561 through the wheel belt 840 to form a belt transmission mechanism. The wheel motor shaft 561 is installed in the wheel motor 560, and the wheel motor 560 is installed on the second box plate 422. After the wheel motor 560 is started, it can drive the wheel screw 452 to rotate in a circular manner, thereby driving the two wheel seats 450 to move closer or farther synchronously, so that the two wheels 451 move closer or farther relative to the outer wall of the steel pipe 01.

[0033] One of the first rotating shafts 831 passes through the first box plate 421 and is connected to the output shaft of the rotating motor 570, and the rotating motor is installed on the second box plate 422; the other first rotating shaft 831 passes through the first box plate 421 and is assembled with the input shaft of the rotary encoder 590, and the rotary encoder 590 is installed on the second box plate 422, so that the rotation angle of the corresponding first rotating shaft 831 can be detected.

[0034] The rotating belt 850 is wound around two first rotating shafts 831 and at least one auxiliary belt shaft 851 to form a belt transmission mechanism. The auxiliary belt shaft 851 is installed on the second box plate 422 in a circularly rotatable manner.

[0035] See also Fig.11In the initial state, the two rotating wheels 451 are at the position farthest from the steel pipe 01, so that the steel pipe 01 can pass through the two rotating wheels 451 and be pressed against the end bearing 432. In this process, the rotating belt pulls the slider 8331 to overcome the elastic force of the tension spring to compensate for the displacement of the rotating wheel 451. Then the rotating wheel motor 560 is started, and the rotating wheel motor 560 drives the two rotating wheels 451 to move toward the steel pipe 01 until they are pressed against the outer wall of the steel pipe 01. The rotating motor 570 is started, so that the two first rotating shafts 831 are driven to rotate through the rotating wheel belt 850, and the first rotating shaft 831 drives the rotating wheel 451 to rotate through the rotating belt 830, and the two rotating wheels 451 drive the steel pipe 01 to rotate in a circle so as to cut off one circle of the steel pipe 01. When in use, the angle that the first rotating shaft 831 needs to rotate when the steel pipe rotates one circle can be measured in advance, so that the angle of the first rotating shaft 831 can be detected by the rotary encoder 590 to determine the rotation angle of the steel pipe to determine whether the steel pipe has been cut.

[0036] See also Figure 1-Figure 9 , Figure 16-Figure 21 The clamping module 300 includes a clamping frame 310, a lower shell 320, and an upper shell 330. The lower shell 320 is fixed on the clamping frame 310, and the clamping frame 310 is installed on the frame 110. One end of the lower shell 320 and the upper shell 330 are hingedly assembled through a hinge shaft 301 so that the upper shell 330 can be rotated and opened relative to the lower shell 320.

[0037] The upper shell 330 is also hinged to one end of the opening and closing electric cylinder shaft 391, the other end of the opening and closing electric cylinder shaft 391 is installed in the opening and closing electric cylinder 390, and the outer shell of the opening and closing electric cylinder 390 is hinged to the clamping and feeding frame 310. After the opening and closing electric cylinder 390 is started, it can drive the opening and closing electric cylinder shaft 391 to axially extend and retract, thereby driving the upper shell 330 to rotate relative to the lower shell 320.

[0038] The upper shell 330 and the lower shell 320 are respectively provided with a centering half disk 350 which can be rotatably mounted in a circular manner. The centering half disk 350 is provided with a centering arc groove 351, and a centering gear 872 is also installed on the outer wall of the centering half disk 350. The centering gear 872 is meshed with a centering drive tooth 871 for transmission. The centering drive tooth 871 is sleeved on the centering motor shaft 531. The centering motor shaft 531 is installed in the centering motor 530, and the centering motor 530 is installed on the clamping and feeding frame 310. After the centering motor 530 is started, the centering drive tooth 871 can be driven to rotate, thereby driving the centering half disk 350 to rotate. The centering motor shaft 531 is assembled with the input shaft of the centering encoder 790, and the centering encoder 790 is installed on the clamping and feeding frame 310. The rotation angle of the centering motor shaft 531 can be detected by the centering encoder 790, and then the rotation angle of the centering half disk 350 can be calculated.

[0039] A semi-fixed disk 340 is also installed on the upper shell 330 and the lower shell 320 respectively. The semi-fixed disk 340 is provided with a semi-fixed disk groove 341. The semi-fixed disk groove 341 is engaged with and slidably assembled with the centering rod 360. A centering pin 362 is installed on the centering rod 360, and a centering wheel 361 is installed on the end of the centering rod 360 that is inserted into the inner side of the centering half disk 350. The centering pin 362 is engaged with the centering arc groove 351 and slidably assembled therewith. When the centering half disk 350 rotates, it will drive the centering rod 360 to move relative to the outer wall of the steel pipe 01 through the centering arc groove 351 to clamp or release the steel pipe 01 through the centering wheel 361.

[0040] During the rotation of the centering half disk 350 , the centering encoder 790 detects the rotation angle, so that when the centering half disk 350 is reset, the centering encoder 790 detects the same reverse angle, so as not to interfere with the opening and closing of the upper shell 330 .

[0041] There are three centering rods 360 and they are evenly distributed in the circumferential direction of the centering half disk 350, so that the three centering wheels 361 can clamp the steel pipe 01 in the circumferential direction of the steel pipe 01 respectively, so that the axis of the steel pipe 01, the axis of the centering half disk 350, and the axis of the radial disk 490 are finally in a straight line, thereby realizing the positioning of the steel pipe 01 on the axis (in the circumferential direction).

[0042] The centering rod 360 is fixedly assembled with the sliding frame 370, and a sliding frame 371 is provided on the sliding frame 370. The sliding frame 371 is engaged with and slidably assembled with a conveying frame block 382. The conveying frame block 382 is installed on the conveying frame 380, and a conveying frame shaft 383 is also installed on the conveying frame 380. One end of the conveying frame shaft 383 is fitted with a conveying spring 503 and then passes through the sliding frame 370. The conveying spring 503 provides elastic resistance to the movement of the conveying frame 380 toward the sliding frame 370.

[0043] The conveying frame 380 is equipped with a conveying motor 780, and the conveying motor shaft 781 of the conveying motor 780 is connected to the conveying wheel shaft 881 through the conveying belt 880 to form a belt transmission mechanism. The conveying wheel shaft 881 is installed on the conveying frame 380, and the conveying wheel 381 is fixedly mounted on the conveying wheel shaft 881. When in use, the conveying motor 780 is started to drive the conveying wheel 381 to rotate, and the conveying wheel 381 can be pressed against the outer wall of the steel pipe 01, thereby driving the steel pipe 01 to move in the axial direction to convey the steel pipe to the end module to cooperate to complete the cutting.

[0044] The cutting module 600 includes an outer frame 610, a transverse frame 620, and a lifting frame 630. The outer frame 610 is installed on the cutting bracket 150, and the cutting bracket 150 is installed on the frame 110. The transverse frame 620 is installed in the outer frame 610, and the outer frame 610 is respectively installed with transverse frame slide rails 611 at the upper and lower ends of the transverse frame 620. The transverse frame slide rails 611 are engaged and slidably assembled with corresponding transverse frame sliders 621. The transverse frame sliders 621 are installed on the transverse frame 620. A transverse frame block 623 is provided, and the transverse frame block 623 is sleeved on the transverse screw 613 and assembled with the transverse screw 613 by screw threading. The transverse screw 613 can rotate in a circular manner and cannot be fixedly installed in an axial direction on the outer frame 610, and one end of the transverse screw 613 is connected to the transverse motor shaft 721 of the transverse motor 720; the transverse frame block 623 is also assembled with the transverse input shaft 711, and the transverse input shaft 711 is installed in the transverse displacement sensor 710, and the transverse displacement sensor 710 and the transverse motor 720 are both installed on the outer frame 610. After the transverse motor 720 is started, it can drive the transverse screw 613 to rotate in a circular manner, thereby driving the transverse frame block 623 (transverse frame 620) to move along the transverse slide rail 172, and the transverse frame block 623 drives the transverse input shaft 711 to move, so that the transverse displacement sensor 710 detects the transverse displacement amount of the transverse frame 620.

[0045] The transverse frame 620 is respectively equipped with a lifting electric cylinder 730, a lifting displacement sensor 740, and a lifting optical axis 622. The lifting electric cylinder shaft 731 of the lifting electric cylinder 730 and the lifting input shaft 741 of the lifting displacement sensor 740 are respectively assembled with the lifting frame 630. The lifting frame 630 is equipped with a guide tube 631 and a longitudinal slide rail 632. The guide tube 631 can be axially slidably mounted on the lifting optical axis 622. The longitudinal slide rail 632 can be axially slidably mounted on the cutting slide rail 771, and the cutting slide rail 771 is mounted on the cutting head 770. The cutting head 770 is also assembled and fixed with the longitudinal electric cylinder shaft 761 of the longitudinal electric cylinder 760 and the longitudinal input shaft 751 of the longitudinal displacement sensor 750. The longitudinal electric cylinder 760 and the longitudinal displacement sensor 750 are both mounted on the lifting frame 630. When in use, the lifting electric cylinder 730 is activated to drive the lifting frame 630 to carry the cutting head 770 up and down, and the longitudinal electric cylinder 760 is activated to drive the cutting head 770 to move closer to or away from the steel pipe at the processing station. The lifting displacement sensor 740 and the longitudinal displacement sensor 750 are respectively used to detect the lifting displacement and longitudinal displacement of the cutting head 770. This design is mainly to achieve three-axis adjustment of the cutting head 770 to adapt to steel pipes of different outer diameters. The cutting head 770 of this embodiment is a laser cutting head of a laser cutting machine.

[0046] The usage of this embodiment is roughly as follows: S1. In the initial state, the end module 400 is at the end farthest from the corresponding pinching module 300 to avoid interfering with the loading of the steel pipe 01. The upper shell 330 of the pinching module 300 remains open. Figure 17-Figure 18 , to avoid interfering with the loading of steel pipe 01.

[0047] S2. Release the steel pipe 01 from the feeding rack 120, and let it roll onto the receiving assembly 200. Then close the upper shell 330 and start the centering motor 530, so that the conveying wheel 381 and the centering wheel 361 are pressed against the steel pipe 01 to achieve preliminary positioning of the steel pipe 01 on the axis.

[0048] S3. The end module 400 moves toward the end of the steel pipe 01 until it reaches a preset position.

[0049] S4, start the conveying motor 780, and convey the steel pipe 01 to the end module 400 by rotating the conveying wheel 381 until the collision switch 550 is triggered.

[0050] S5, start the radial motor 580, so that the end roller 481 is pressed against the outer wall of the steel pipe 01 to complete the positioning of the axis of the steel pipe 01. Start the wheel motor 560 to drive the two wheels 451 to press against the outer wall of the steel pipe 01.

[0051] S6, adjust the cutting head 770 as needed, and prepare to start the cutting head 770 to start cutting. At the same time, the rotary motor 570 drives the rotating wheel 451 to rotate to drive the steel pipe 01 to rotate in a circle to complete the cutting of the steel pipe 01 for one week to cut the steel pipe, and the cut steel pipe section falls to the guide trough 140 for output.

[0052] S7, the rotary motor 560 and the radial motor 580 are reversed at a certain angle to release the cut steel pipe section. Then the conveying motor 780 is started to convey the steel pipe 01 to the end module until the collision switch is triggered, and the rotary motor 560 and the radial motor 580 are started to restore the rotary wheel 451 and the end roller 481 to press against the outer wall of the steel pipe 01, and then the next cutting is started, and the cycle is repeated.

[0053] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0054] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. Fully automatic steel pipe cutting machine suitable for various outer diameters, its characteristics are: It includes a frame and a cutting part, wherein the cutting part is installed on the frame and cuts the steel pipe; The cutting part includes at least one clamping and conveying module and at least one cutting module. The clamping and conveying module is used to clamp the steel pipe, align the axis, and convey it to the end module. The cutting module cuts the steel pipe through a cutting head to complete the cutting of the steel pipe. The pinching module comprises a pinching frame, a lower shell and an upper shell, wherein the lower shell is fixedly mounted on the pinching frame, the pinching frame is mounted on the frame, and the upper shell is assembled with the lower shell; The upper shell and the lower shell are respectively provided with a centering half disk, the centering half disk is provided with a centering arc groove, and a centering gear is also installed on the outer wall of the centering half disk, the centering gear is meshed with the centering drive gear for transmission, the centering drive gear is sleeved on the centering motor shaft, the centering motor shaft is installed in the centering motor, and the centering motor is installed on the clamping and feeding frame; The upper shell and the lower shell are also respectively provided with semi-fixed disks, the semi-fixed disks are provided with semi-fixed disk grooves, the semi-fixed disk grooves are engaged with and slidably assembled with the centering rod, the centering rod is provided with a centering pin, and a centering wheel is provided on one end of the centering rod which is inserted into the inner side of the centering half disk, the centering pin is inserted into the centering arc groove and slidably assembled with the centering wheel; there are at least two centering rods which are evenly distributed in the circumferential direction of the centering half disk; The centering rod is directly or indirectly assembled with the conveying frame, a conveying motor is installed on the conveying frame, a conveying motor shaft of the conveying motor is connected with a conveying wheel shaft through a conveying belt to form a belt transmission mechanism, the conveying wheel shaft is installed on the conveying frame, and a conveying wheel is fixedly mounted on the conveying wheel shaft.

2. The fully automatic steel pipe cutting machine according to claim 1, characterized in that: One end of the lower shell and the upper shell are hingedly assembled through a hinge shaft; the upper shell is also hingedly connected to one end of the opening and closing electric cylinder shaft, the other end of the opening and closing electric cylinder shaft is installed in the opening and closing electric cylinder, and the outer shell of the opening and closing electric cylinder is hingedly connected to the clamping and feeding frame.

3. The fully automatic steel pipe cutting machine according to claim 1, characterized in that: The centering rod is fixedly assembled with the sliding frame, and a sliding frame is arranged on the sliding frame. The sliding frame is engaged with and slidably assembled with the conveying frame block, and the conveying frame block is installed on the conveying frame. A conveying frame shaft is installed on the conveying frame, and one end of the conveying frame shaft is fitted with a conveying spring and then passes through the sliding frame, and the conveying spring provides elastic resistance to the movement of the conveying frame toward the sliding frame.

4. The fully automatic steel pipe cutting machine according to any one of claims 1 to 3, characterized in that: The centering motor shaft is assembled with the input shaft of the centering encoder, and the centering encoder is installed on the clamping and feeding frame.

5. The fully automatic steel pipe cutting machine according to any one of claims 1 to 3, characterized in that: The cutting part further comprises at least one receiving assembly, and the receiving assembly is used to receive the delivered steel pipe; The material receiving assembly includes a material receiving platform, a material receiving seat, a material receiving bottom plate, a material receiving side plate, and a material receiving screw. The material receiving platform is installed on the frame, and the material receiving seat is installed on the material receiving platform. The material receiving chute is provided on the material receiving platform. The material receiving chute is engaged with and slidably assembled with a material receiving slider, and the material receiving slider is provided on the material receiving side plate. The material receiving side plate is sleeved outside the material receiving screw and assembled with it through threaded engagement. The material receiving screw is installed on the material receiving seat. The material receiving slider or the material receiving side plate is assembled with one end of the material receiving input shaft.

6. The fully automatic steel pipe cutting machine according to any one of claims 1 to 3, characterized in that: The fully automatic steel pipe cutting machine also includes an end module, which is used to detect whether the steel pipe is tightened in place and rotate the steel pipe; The end module comprises an end frame, an end box, and an end electric cylinder. The end electric cylinder and the end frame are mounted on the frame. The end sliding shaft is mounted on the end frame. The end box is sleeved outside the end sliding shaft and assembled with it. The end electric cylinder shaft of the end electric cylinder is assembled with the end box. The end box includes a first box plate and a second box plate. The first box plate is assembled with a fixed disk. A fixed disk groove is provided on the fixed disk. The fixed disk groove is engaged with and slidably assembled with a radial rod. An end roller is installed on the end of the radial rod that enters the inner side of the fixed disk. A radial rod pin is also installed on the radial rod. The radial rod pin is installed in a radial arc groove and is engaged with and slidably assembled with the radial arc groove. The radial arc groove is provided on the radial disk. A radial gear is sleeved on the outside of the radial disk. The radial gear is meshed with a radial drive tooth for transmission. The radial drive tooth sleeve is fixed on the radial motor shaft. The radial motor shaft is installed in the radial motor and the radial motor is installed on the second box plate.

7. The fully automatic steel pipe cutting machine according to claim 6, characterized in that: The end box also includes a third box plate, on which a collision switch is installed. The signal of the collision switch is connected to the industrial computer and the trigger end of the collision switch is opposite to the end of the trigger shaft. One end of the trigger shaft passes through the second box plate and is assembled with the shaft ring of the end bearing after the trigger spring is installed. The seat ring of the end bearing can be pressed against the end of the steel pipe.

8. The fully automatic steel pipe cutting machine according to claim 6, characterized in that: The first box plate is also equipped with two rotating wheel assemblies, the rotating wheel assemblies include a yielding slide rail, the yielding slide rail is provided with a yielding slide groove, the yielding slide groove is engaged with the yielding slider and slidably assembled, the yielding slider is equipped with a third rotating shaft, the rotating belt passes around the first rotating shaft, the second rotating shaft, and the third rotating shaft to form a belt transmission mechanism; the yielding slider is assembled with one end of a tension spring, the other end of the tension spring is directly or indirectly assembled with the first box plate, and the tension spring applies an elastic force to pull the yielding slider away from the first rotating shaft; The second rotating shaft is mounted on the wheel seat and fixedly assembled with the wheel, the wheel seat is sleeved outside the wheel screw and assembled with it through threaded engagement, the threads of the two wheel seats engaged with the wheel screw are in opposite directions, and the wheel seat is directly or indirectly engaged and slidably assembled with the first box plate, the wheel screw is mounted on the first box plate, the wheel screw is connected to the wheel motor shaft through a wheel belt and forms a belt transmission mechanism, the wheel motor shaft is installed in the wheel motor, and the wheel motor is mounted on the second box plate; One of the first rotating shafts passes through the first box plate and is connected to the output shaft of the rotating motor, and the rotating motor is mounted on the second box plate; the other first rotating shaft passes through the first box plate and is assembled with the input shaft of the rotary encoder, and the rotary encoder is mounted on the second box plate; The rotating belt is wound around two first rotating shafts and at least one auxiliary belt shaft to form a belt transmission mechanism, and the auxiliary belt shaft is installed on the second box plate.

9. The fully automatic steel pipe cutting machine according to any one of claims 1 to 3, characterized in that: The cutting module includes an outer frame, a transverse frame, and a lifting frame. The outer frame is installed on the cutting frame, and the cutting frame is installed on the frame. The transverse frame is installed in the outer frame, and transverse frame slide rails are respectively installed at the upper and lower ends of the transverse frame on the outer frame. The transverse frame slide rails are engaged with and slidably assembled with the corresponding transverse frame sliders. The transverse frame slider is installed on the transverse frame. A transverse frame block is provided on the transverse frame. The transverse frame block is sleeved on the transverse screw and assembled with it by threaded engagement. The transverse screw is installed on the outer frame, and one end of the transverse screw is connected to the transverse motor shaft of the transverse motor; the transverse frame block is also assembled with the transverse input shaft, and the transverse input shaft is installed in the transverse displacement sensor. The transverse displacement sensor and the transverse motor are both installed on the outer frame; The transverse frame is respectively equipped with a lifting electric cylinder, a lifting displacement sensor, and a lifting optical axis. The lifting electric cylinder shaft of the lifting electric cylinder and the lifting input shaft of the lifting displacement sensor are respectively assembled with the lifting frame. The lifting frame is equipped with a guide tube and a longitudinal slide rail. The guide tube can be axially slidably mounted on the lifting optical axis. The longitudinal slide rail can be axially slidably mounted on the cutting slide rail, and the cutting slide rail is installed on the cutting head. The cutting head is also assembled and fixed with the longitudinal electric cylinder shaft of the longitudinal electric cylinder and the longitudinal input shaft of the longitudinal displacement sensor. The longitudinal electric cylinder and the longitudinal displacement sensor are both installed on the lifting frame.

10. The fully automatic steel pipe cutting machine according to any one of claims 1 to 3, characterized in that: The fully automatic steel pipe cutting machine also includes a feed rack, which is installed on the frame and conveys steel pipes to the cutting part one by one; the feed rack is also equipped with a first feed plate and a second feed plate, the second feed plate is used to block the steel pipes on the feed rack from passing through, and the first feed plate is used to block a steel pipe located between the first feed plate and the second feed plate from passing through.

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