Automatic pipe punching device

Abstract

The utility model provides an automatic pipe punching device which comprises a feeding device, a loading device and a punching device. The feeding device, the feeding device and the punching device are sequentially arranged, the feeding device conveys pipe materials to the feeding device, and the feeding device conveys the pipe materials to the punching device at a uniform speed for punching. The feeding device comprises a first linear module, and the first linear module is in driving connection with a first clamping device. A second linear module is arranged in the direction of the first linear module, and the second linear module is in driving connection with a second clamping device. The feeding device is connected with a positioning device, and the positioning device provides a feeding reference for the feeding device. According to the automatic pipe fitting punching machine, alignment punching is automatically conducted on pipe materials, the last section of pipe fitting can be automatically judged, the pipe fitting is moved through the second linear module and the second clamping device, the situation of missing machining is avoided, pipe fitting machining automation is achieved, machining efficiency is improved, labor cost is saved, and material waste is reduced.

Description

Technical Field

[0001] The utility model belongs to a production and processing device, in particular to an automatic pipe punching device. Background Art

[0002] Punching and forming is a commonly used process in pipe processing. Stamping equipment and special molds are usually used to accurately cut and form pipes, which is particularly suitable for large-scale production needs.

[0003] During the punching and forming process, the pipe needs to be fed into the punching die at a steady speed for punching or forming to achieve automated production. In the actual production process, due to uneven placement of pipes, the first product is prone to unqualified length, resulting in unqualified parts. When the two ends of the product need to be punched, the feeding device cannot clamp the last section of the pipe, resulting in one end of the last section of the pipe being unable to be punched, generating a large amount of scrap and causing material waste.

[0004] Therefore, the above problems need to be solved urgently. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides an automatic punching device for pipes, which automatically aligns and punches pipes, can avoid the occurrence of missed processing of tail pieces, realize the automation of pipe processing, improve processing efficiency, save labor costs, and reduce material waste.

[0006] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides an automatic punching device for pipes, including a feeding device, a loading device, and a punching device. The feeding device, the loading device, and the punching device are arranged in sequence, the feeding device conveys the pipe to the loading device, and the loading device conveys the pipe to the punching device at a uniform speed for punching. The feeding device includes a feeding rack, the feeding rack is provided with a V-shaped roller, and the V-shaped roller forms a feeding channel along a linear array. A feeding cylinder is provided on the side of the feeding rack away from the loading device, and the cylinder shaft of the feeding cylinder is driven and connected with a ejector rod, and the ejector rod is arranged in the feeding channel formed by the V-shaped roller. The loading device includes a first linear module, the first linear module is arranged along the direction of the V-shaped roller array, the first linear module is driven and connected with a first clamping device, the first clamping device is arranged between the feeding device and the punching device, the first clamping device is provided with a sensing device, the first clamping device clamps the pipe, and the first linear module drives the first clamping device to move in the direction of the punching device. The punching device includes a punching machine, which is connected to a punching die. The punching machine drives the punching die to punch the pipe. A second linear module is provided along the direction of the first linear module. The first linear module and the second linear module are arranged in a straight line. The second linear module is driven and connected to a second clamping device. The second clamping device is arranged on the side of the punching die away from the first clamping device. When the first clamping device does not clamp the pipe, the second clamping device clamps the pipe, and the second linear module drives the second clamping device to move away from the punching device. The feeding device is connected to a positioning device, which provides a feeding reference for the feeding device. During the production process, the feeding device feeds the pipe into the feeding channel formed by the V-shaped roller array, and the feeding cylinder drives the ejecting rod to move toward the feeding device. The ejecting rod pushes the pipe to move along the feeding channel formed by the V-shaped roller array toward the feeding device. The pipe abuts against the positioning device, triggering the sensor provided in the positioning device. The positioning device sends a signal to the control system. The control system receives the signal, and the positioning device moves up and resets. The control system controls the feeding device to load the pipe. During the feeding process, the first linear module drives the first clamping device to move to one end close to the feeding device, and the first clamping device clamps the pipe. The first linear module drives the first clamping device to move to one end close to the punching device. At this time, the pipe is clamped by the first clamping device and enters the punching die in the punching device. The punching machine drives the punching die to perform punching. Before each feeding, the pipe is positioned against the positioning device to ensure that the pipe is in the same position each time it is fed, avoiding the occurrence of quality problems of the first piece, improving product quality, and avoiding material waste. The pipe is cut in the punching die. After the punching is completed, the punching die is separated. The cut pipe falls from the punching die into the receiving box due to the change of its own center of gravity. When the last section of the pipe is punched, the first clamping device is located near one end of the feeding device. The first clamping device cannot clamp the pipe, the pipe fitting cannot move, and the other end of the pipe cannot be punched.At this time, the sensing device in the first clamping device is not triggered, and the control system controls the second clamping device to clamp. After the punching is completed, the punching mold is separated, and the second linear module drives the second clamping device to move away from the punching mold, and then the punch press is started to punch the other end of the pipe to form a finished product. The second linear module and the second clamping device can prevent the last section of the pipe from being missed by punching, and there is no need to separately reprocess the missed pipes. The utility model automatically aligns and punches the pipes, and when producing pipes that need to be punched at both ends, it can automatically determine the last section of the pipe, and use the second linear module and the second clamping device to move the pipe so that the other end of the last section of the pipe can be punched, thereby avoiding the occurrence of missed processing, realizing the automation of pipe processing, improving processing efficiency, saving labor costs, and reducing material waste.

[0007] Furthermore, in the above-mentioned automatic punching device for pipes, the positioning device includes a positioning frame, which is arranged on the upper side of the first linear module, and the positioning frame is connected to a positioning cylinder, the cylinder body of the positioning cylinder is fixedly connected to the upper side of the positioning frame, the cylinder shaft of the positioning cylinder passes through a through hole provided on the positioning frame, and the cylinder shaft of the positioning cylinder is driven and connected to a connecting block, and the connecting block is slidably connected to a connecting rod, and the connecting rod is connected to a positioning plate on the side close to the first clamping device, and the connecting rod sleeve is provided with a spring. The connecting block is provided with an induction switch. When the ejector rod pushes the pipe to move along the feeding channel formed by the V-shaped roller array toward the feeding device, the positioning cylinder has moved the positioning plate downward, the positioning plate is squeezed by the pipe, and the positioning plate slides along the connecting rod, and the positioning plate triggers the induction switch provided on the connecting block, the feeding cylinder stops working, the positioning cylinder lifts the positioning plate, and the feeding device starts working.

[0008] Furthermore, in the above-mentioned automatic punching device for pipes, a material trough is provided on the top surface of the feed rack, the pipes are placed in the material trough, the feed rack is provided with a guide rack, the guide rack is arranged between the material trough and the V-shaped roller, and part of the guide rack is arranged on the lower side of the material trough. The feed rack is connected to a guide cylinder, the cylinder shaft of the guide cylinder is connected to the guide rack by driving, and the guide cylinder drives the guide rack to move up and down. Multiple pipes are stored in the material trough, the guide cylinder drives the guide rack to rise, the guide rack arranged on the lower side of the material trough pushes the pipes to move upward, and the pipes are squeezed and moved to the other side of the material trough by the guide rack, the guide rack is higher than the material trough, and the pipes on the upper side of the guide rack are guided by the guide rack to the feeding channel formed by the V-shaped roller.

[0009] Furthermore, in the above-mentioned automatic punching device for pipes, the top surface of the guide rack is an inclined surface, a material stopper is provided on the side of the top surface of the guide rack close to the V-shaped roller, and a guide surface is provided between the trough and the V-shaped roller. When the pipe is separated from the trough, the pipe rolls along the top surface of the guide rack toward the V-shaped roller, and then is blocked by the material stopper, reducing the rolling kinetic energy of the pipe, so that the pipe rolls smoothly into the feeding channel formed by the V-shaped roller, thereby improving the feeding stability.

[0010] Furthermore, in the above-mentioned automatic punching device for pipes, the guide surface includes a first guide surface and a second guide surface, and the first guide surface is higher than the second guide surface. The stepped first guide surface and the second guide surface can ensure that when the pipe is separated from the second guide surface, the pipe is close to the upper side of the V-shaped roller, thereby reducing the gravitational potential energy of the pipe and improving the stability of pipe feeding.

[0011] Furthermore, in the above-mentioned automatic punching device for pipes, the first clamping device includes a first support plate that is drive-connected to the first linear module. The first support plate is provided with a first claw at one end away from the first linear module. Two first claws are provided in parallel. The two first claws are respectively connected to first clamping cylinders. The two first clamping cylinders are respectively provided on the outsides of the two first claws. The cylinder shafts of the two first clamping cylinders respectively pass through the first claws and extend between the two first claws. The cylinder shafts of the first clamping cylinders are respectively connected to clamping blocks, and the clamping blocks are provided with sensors. When it is necessary to clamp the pipe, the cylinder shaft of the first clamping cylinder drives the clamping block to move, the clamping block squeezes the pipe, the sensor of the clamping block is triggered, and the second clamping device is not started. If the sensor of the clamping block is not triggered, the second linear module and the second clamping device are started, the second clamping device clamps the pipe, and the second linear module drives the second clamping device to move.

[0012] Furthermore, in the above-mentioned automatic punching device for pipes, the second clamping device includes a second support plate connected to the second linear module, the second support plate is provided with a second claw at one end away from the second linear module, two second claws are provided in parallel, the two second claws are respectively connected to second clamping cylinders, the two second clamping cylinders are respectively provided on the outsides of the two second claws, and the cylinder shafts of the two first clamping cylinders respectively pass through the second claws and extend between the two second claws. The cylinder shafts of the second clamping cylinders are respectively connected to clamping blocks. When the sensor on the clamping block provided with the first clamping cylinder is not triggered, the second linear module and the second clamping device are started, the second clamping device clamps the pipe, and the second linear module drives the second clamping device to move.

[0013] Furthermore, in the above-mentioned automatic punching device for pipes, the feed frame is provided with a collecting rod, which is arranged at the lower side of the material trough, and one end of the collecting rod close to the V-shaped roller is movably connected to the feed frame shaft, and the lower side of the end of the collecting rod away from the V-shaped roller is provided with a collecting cylinder, and the cylinder shaft of the collecting cylinder is drivingly connected to the collecting rod. When there are fewer pipes in the material trough, the collecting cylinder drives one end of the collecting rod to rise, and the pipes roll toward the side of the guide frame, and the pipes are collected.

[0014] Furthermore, in the above-mentioned automatic pipe punching device, a plurality of material collecting rods are provided along the direction of the V-shaped roller array, and the material collecting cylinders and the material collecting rods are provided correspondingly.

[0015] Furthermore, in the above-mentioned automatic punching device for pipes, fixed cylinders are respectively provided on both sides of the punching die, and there are 4 fixed cylinders in total, which are arranged in pairs, and the fixed cylinders extend into the punching die to clamp and fix the two ends of the pipe. During the punching process, the fixed cylinders are started to fix the pipe fittings, thereby improving the stability of the pipe fittings and improving the processing quality.

[0016] It can be seen from the above technical scheme that the utility model has the following beneficial effects: when producing pipe fittings that need to be punched at both ends, the utility model can automatically determine the last section of the pipe, use the second linear module and the second clamping device to move the pipe fitting so that the other end of the last section of the pipe can be punched, thereby avoiding the occurrence of missed processing, realizing the automation of pipe fitting processing, improving processing efficiency, saving labor costs, and reducing material waste. During the punching process, the fixed cylinder fixes the pipe fitting to improve the stability of the pipe fitting and improve the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the automatic pipe punching device of the utility model;

[0018] Figure 2 is a schematic structural diagram of the feeding device;

[0019] Figure 3 is a schematic structural diagram of the feeding device;

[0020] Figure 4 It is a schematic diagram of the punching die structure.

[0021] In the figure: 1, feeding device, 11, feeding frame, 111, material trough, 112, guide frame, 113 guide cylinder, 114, material blocking part, 12, V-shaped roller, 13, feeding cylinder, 14, ejector rod, 151, collecting rod, 152, collecting cylinder, 16, guide surface, 161, first guide surface, 162, second guide surface, 2, loading device, 21, first linear module, 22, first clamping device, 221, first A support plate, 222, a first claw, 223, a first clamping cylinder, 23, a second linear module, 24, a second clamping device, 241, a second support plate, 242, a second claw, 243, a second clamping cylinder, 3, a punching device, 31, a punching machine, 32, a punching die, 321, a fixed cylinder, 4, a positioning device, 41, a positioning frame, 42, a positioning cylinder, 43, a connecting block, 44, a connecting rod, 45, a positioning plate. DETAILED DESCRIPTION

[0022] Example 1

[0023] like Figure 1-3The automatic punching device for pipes shown in the figure comprises a feeding device 1, a loading device 2, and a punching device 3. The feeding device 1, the loading device 2, and the punching device 3 are arranged in sequence, the feeding device 1 conveys the pipe to the loading device 2, and the loading device 2 conveys the pipe to the punching device 3 at a uniform speed for punching. The feeding device 1 comprises a feeding rack 11, the feeding rack 11 is provided with a V-shaped roller 12, and the V-shaped roller 12 forms a feeding channel along a linear array. A feeding cylinder 13 is provided on the side of the feeding rack 11 away from the loading device 2, and a cylinder shaft of the feeding cylinder 13 is driven and connected with a push rod 14, and the push rod 14 is arranged in the feeding channel formed by the V-shaped roller 12. The feeding device 2 includes a first linear module 21, which is arranged along the array direction of the V-shaped roller 12. The first linear module 21 is driven and connected to a first clamping device 22, which is arranged between the feeding device 1 and the punching device 3. The first clamping device 22 is provided with a sensing device, and the first clamping device 22 clamps the pipe. The first linear module 21 drives the first clamping device 22 to move toward the punching device 3. The punching device 3 includes a punch 31, which is connected to a punching die 32, and the punch 31 drives the punching die 32 to punch the pipe. A second linear module 23 is provided along the direction of the first linear module 21. The first linear module 21 and the second linear module 23 are arranged in a straight line. The second linear module 23 is driven and connected to a second clamping device 24. The second clamping device 24 is arranged on the side of the punching die 32 away from the first clamping device 22. When the first clamping device 22 does not clamp the pipe, the second clamping device 24 clamps the pipe, and the second linear module 23 drives the second clamping device 24 to move away from the punching device 3. The feeding device 2 is connected with a positioning device 4, which includes a positioning frame 41, which is arranged on the upper side of the first linear module 21, and is connected with a positioning cylinder 42. The cylinder body of the positioning cylinder 42 is fixedly connected to the upper side of the positioning frame 41, and the cylinder shaft of the positioning cylinder 42 passes through the through hole provided on the positioning frame 41. The cylinder shaft of the positioning cylinder 42 is driven and connected with a connecting block 43, and the connecting block 43 is slidably connected with a connecting rod 44. The connecting rod 44 is connected with a positioning plate 45 on the side close to the first clamping device 22, and the connecting rod 44 is sleeved with a spring. The connecting block 43 is provided with a trigger switch. The feeding frame 11 is provided with a collecting rod 151, which is arranged on the lower side of the material trough 111, and the end of the collecting rod 151 close to the V-shaped roller 12 is movably connected to the shaft of the feeding frame 11, and the lower side of the end of the collecting rod 151 away from the V-shaped roller 12 is provided with a collecting cylinder 152, and the cylinder shaft of the collecting cylinder 152 is drivingly connected with the collecting rod 151. A plurality of material collecting rods 151 are provided along the array direction of the V-shaped rollers 12 , and the material collecting cylinders 152 and the material collecting rods 151 are provided correspondingly.

[0024] During the production process, the feeding device 1 sends the pipe to the feeding channel formed by the V-shaped roller 12 array, and the feeding cylinder 13 drives the ejecting rod 14 to move toward the upper feeding device 2. The ejecting rod 14 pushes the pipe to move along the feeding channel formed by the V-shaped roller 12 array toward the upper feeding device 2. The pipe abuts against the positioning device 4, and the positioning plate 45 is squeezed by the pipe. The positioning plate 45 slides along the connecting rod 44, and the positioning plate 45 triggers the trigger switch provided on the connecting block 43. The positioning device 4 sends a signal to the control system, and the control system receives the signal. Then the control system controls the feeding cylinder 13 to stop working, controls the loading device 2 to load, and the positioning device 4 moves up and resets. During the feeding process, the first linear module 21 drives the first clamping device 22 to move close to one end of the feeding device 1. The first clamping device 22 clamps the pipe. The first linear module 21 drives the first clamping device 22 to move close to one end of the punching device 3. At this time, the pipe is clamped by the first clamping device 22 and enters the punching die 32 in the punching device 3. The punch 31 drives the punching die 32 to perform the punching work. Before each feeding, the pipe is positioned against the positioning device 4 to ensure that the pipe is in the same position each time it is fed, avoiding the occurrence of quality problems of the first piece, improving product quality, and avoiding material waste. The pipe is cut in the punching die 32. After the punching is completed, the punching die 32 is separated. The cut pipe falls from the punching die 32 into the receiving box due to the change of its own center of gravity. When the last section of the pipe is punched, the first clamping device 22 cannot clamp the pipe. At this time, the sensing device in the first clamping device 22 is not triggered, and the control system controls the second clamping device 24 to clamp. After the punching is completed, the punching die 32 is separated, and the second linear module 23 drives the second clamping device 24 to move away from the punching die 32, and then the punching machine 31 is started to punch the other end of the pipe to form a finished product. When there are fewer pipes in the trough 111, the collecting cylinder 152 drives one end of the collecting rod 151 to rise, and the pipes roll to the side of the guide rack 112, and the pipes are concentrated.

[0025] like Figure 2The automatic punching device for pipes shown in the figure has a material trough 111 on the top surface of a feed rack 11, in which the pipe is placed, and a guide rack 112 is provided on the feed rack 111, and the guide rack 112 is provided between the material trough 111 and the V-shaped roller 12, and part of the guide rack 112 is provided on the lower side of the material trough 111. The feed rack 11 is connected to a guide cylinder 113, and the cylinder shaft of the guide cylinder 113 is drivingly connected to the guide rack 112, and the guide cylinder 113 drives the guide rack 112 to move up and down. The top surface of the guide rack 112 is an inclined surface, and a material stopper 114 is provided on the top surface of the guide rack 112 close to the V-shaped roller 12, and a guide surface 16 is provided between the material trough 111 and the V-shaped roller 12. The guide surface 16 includes a first guide surface 161 and a second guide surface 162, and the first guide surface 161 is higher than the second guide surface 162. A plurality of pipes are stored in the material trough 111, and the material guiding cylinder 113 drives the material guiding rack 112 to rise. The material guiding rack 112 arranged at the lower side of the material trough 111 pushes the pipes to move upward, and the pipes are squeezed by the material guiding rack 112 and moved to the other side of the material trough 111. The material guiding rack 112 is higher than the material trough 111, and the pipes on the upper side of the material guiding rack 112 are guided by the top surface of the material guiding rack to roll toward the V-shaped roller 12. The pipes are adjusted to the first guide surface 161 and continue to roll, and then are blocked by the material blocking part 114 to reduce the rolling kinetic energy of the pipes. The material guiding rack 112 continues to descend, and the pipes roll under the guidance of the second guide surface 162 and fall into the upper side of the V-shaped roller 12.

[0026] like Figure 3The automatic punching device for pipes shown in the figure, the first clamping device 22 includes a first support plate 221 drivingly connected to the first linear module 21, the first support plate 221 is provided with a first claw 222 at one end away from the first linear module 21, two first claws 222 are provided in parallel, the two first claws 222 are respectively connected to the first clamping cylinder 223, the two first clamping cylinders 223 are respectively provided on the outside of the two first claws 222, the cylinder shafts of the two first clamping cylinders 223 respectively pass through the first claws 222 and extend between the two first claws 222. The cylinder shafts of the first clamping cylinders 223 are respectively connected to clamping blocks, and the above clamping blocks are provided with sensors. When it is necessary to clamp the pipe, the cylinder shaft of the first clamping cylinder 223 drives the clamping block to move, the clamping block squeezes the pipe, the sensor of the clamping block is triggered, and the second clamping device 24 is not started. If the sensor of the clamping block is not triggered, the second linear module 23 and the second clamping device 24 are activated, the second clamping device 24 clamps the pipe, and the second linear module 23 drives the second clamping device 24 to move. The second clamping device 24 includes a second support plate 241 that is drivingly connected to the second linear module 23. The second support plate 241 is provided with a second claw 242 at one end away from the second linear module 23. Two second claws 242 are provided in parallel. The two second claws 242 are respectively connected to second clamping cylinders 243. The two second clamping cylinders 243 are respectively arranged on the outside of the two second claws 242. The cylinder shafts of the two second clamping cylinders 243 pass through the second claws 242 and extend between the two second claws 242. The cylinder shafts of the second clamping cylinders 243 are respectively connected to clamping blocks. When the sensor on the clamping block provided in the first clamping cylinder 223 is not triggered, the second linear module 23 and the second clamping device 24 are started, the second clamping device 24 clamps the pipe, and the second linear module 23 drives the second clamping device 24 to move.

[0027] like Figure 4 In the automatic punching device for pipes shown, fixed cylinders 321 are respectively provided on both sides of the punching die 32. There are four fixed cylinders 321 in total, and the fixed cylinders 321 are arranged in pairs. The fixed cylinders 321 extend into the punching die 32 to clamp and fix the pipe.

[0028] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the utility model so that people familiar with this field can understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An automatic pipe punching device, characterized in that: The invention comprises a feeding device (1), a loading device (2), and a punching device (3); the feeding device (1), the loading device (2), and the punching device (3) are arranged in sequence, the feeding device (1) conveys the pipe to the loading device (2), and the loading device (2) conveys the pipe to the punching device (3) at a uniform speed for punching; the feeding device (1) comprises a feeding frame (11), the feeding frame (11) is provided with a V-shaped roller (12), and the V-shaped roller (12) forms a feeding channel along a linear array; the feeding frame (11) is away from the loading device ( 2) a feeding cylinder (13) is provided on one side, the cylinder shaft of the feeding cylinder (13) is drivably connected to a push rod (14), and the push rod (14) is arranged in a feeding channel formed by the V-shaped roller (12); the feeding device (2) comprises a first linear module (21), the first linear module (21) is arranged along the array direction of the V-shaped roller (12), the first linear module (21) is drivably connected to a first clamping device (22), the first clamping device (22) is arranged between the feeding device (1) and the punching device (3), and the first clamping device (22) is arranged between the feeding device (1) and the punching device (3). The device (22) is provided with a sensing device, the first clamping device (22) clamps the pipe, and the first linear module (21) drives the first clamping device (22) to move in the direction of the punching device (3); the punching device (3) comprises a punch (31), the punch (31) is connected to a punching die (32), and the punch (31) drives the punching die (32) to punch the pipe; a second linear module (23) is provided along the direction of the first linear module (21), and the first linear module (21) and the second linear module (23) are in a straight line. The second linear module (23) is driven and connected to a second clamping device (24), and the second clamping device (24) is arranged on a side of the punching die (32) away from the first clamping device (22); when the first clamping device (22) does not clamp the pipe, the second clamping device (24) clamps the pipe, and the second linear module (23) drives the second clamping device (24) to move away from the punching device (3); the feeding device (2) is connected to a positioning device (4), and the positioning device (4) provides a feeding reference for the feeding device (2).

2. The automatic pipe punching device according to claim 1 is characterized in that: The positioning device (4) comprises a positioning frame (41), the positioning frame (41) is arranged on the upper side of the first linear module (21), the positioning frame (41) is connected to a positioning cylinder (42), the cylinder body of the positioning cylinder (42) is fixedly connected to the upper side of the positioning frame (41), the cylinder shaft of the positioning cylinder (42) passes through a through hole provided on the positioning frame (41), the cylinder shaft of the positioning cylinder (42) is drivingly connected to a connecting block (43), the connecting block (43) is slidably connected to a connecting rod (44), the connecting rod (44) is connected to a positioning plate (45) on the side close to the first clamping device (22), and the connecting rod (44) is sleeved with a spring.

3. The automatic pipe punching device according to claim 1, characterized in that: The top surface of the material feeding frame (11) is provided with a material trough (111), and the pipe is placed in the material trough (111). The material feeding frame (11) is provided with a material guiding frame (112), and the material guiding frame (112) is arranged between the material trough (111) and the V-shaped roller (12), and part of the material guiding frame (112) is arranged on the lower side of the material trough (111). The material feeding frame (11) is connected to a material guiding cylinder (113), and the cylinder shaft of the material guiding cylinder (113) is drivingly connected to the material guiding frame (112), and the material guiding cylinder (113) drives the material guiding frame (112) to move up and down.

4. The automatic pipe punching device according to claim 3 is characterized in that: The top surface of the material guide frame (112) is an inclined surface, a material stopper (114) is provided on the side of the top surface of the material guide frame (112) close to the V-shaped roller (12), and a guide surface (16) is provided between the material trough (111) and the V-shaped roller (12).

5. The automatic pipe punching device according to claim 4 is characterized in that: The guide surface (16) comprises a first guide surface (161) and a second guide surface (162), wherein the first guide surface (161) is higher than the second guide surface (162).

6. The automatic pipe punching device according to claim 1, characterized in that: The first clamping device (22) comprises a first support plate (221) drivingly connected to the first linear module (21); the first support plate (221) is provided with a first claw portion (222) at one end away from the first linear module (21); two first claw portions (222) are provided in parallel; the two first claw portions (222) are respectively connected to a first clamping cylinder (223); the two first clamping cylinders (223) are respectively provided on the outside of the two first claw portions (222); the cylinder shafts of the two first clamping cylinders (223) respectively pass through the first claw portions (222) and extend between the two first claw portions (222); the cylinder shafts of the first clamping cylinders (223) are respectively connected to clamping blocks; the clamping blocks are provided with sensors.

7. The automatic pipe punching device according to claim 1, characterized in that: The second clamping device (24) comprises a second support plate (241) drivingly connected to the second linear module (23); the second support plate (241) is provided with a second claw portion (242) at one end away from the second linear module (23); two second claw portions (242) are provided in parallel; the two second claw portions (242) are respectively connected to a second clamping cylinder (243); the two second clamping cylinders (243) are respectively arranged on the outside of the two second claw portions (242); the cylinder shafts of the two second clamping cylinders (243) respectively pass through the second claw portions (242) and extend between the two second claw portions (242); the cylinder shafts of the second clamping cylinders (243) are respectively connected to clamping blocks.

8. The automatic pipe punching device according to claim 3 is characterized in that: The material feeding frame (11) is provided with a material collecting rod (151), the material collecting rod (151) is arranged at the lower side of the material trough (111), the end of the material collecting rod (151) close to the V-shaped roller (12) is movably connected to the axis of the material feeding frame (11), and the lower side of the end of the material collecting rod (151) away from the V-shaped roller (12) is provided with a material collecting cylinder (152), and the cylinder shaft of the material collecting cylinder (152) is drivingly connected to the material collecting rod (151).

9. The automatic pipe punching device according to claim 8, characterized in that: A plurality of the material collecting rods (151) are provided along the array direction of the V-shaped rollers (12), and the material collecting cylinders (152) and the material collecting rods (151) are provided correspondingly.

10. The automatic pipe punching device according to claim 1, characterized in that: Fixed cylinders (321) are provided on both sides of the punching die (32), and the fixed cylinders (321) extend into the punching die (32) to clamp and fix the pipe.

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