A metal pipe production device and manufacturing process

Abstract

The application relates to a metal pipe production device and manufacturing process, and belongs to the technical field of metal processing. The device comprises a unwinding assembly, a winding assembly, a welding assembly, a polishing assembly, a cleaning assembly, a welding seam detection assembly, a cutting assembly and a discharging assembly. The cutting assembly comprises horizontal sliding rails arranged along the parallel ground direction, a mounting table slidably mounted on the horizontal sliding rails, and a cutting piece slidably mounted on the top end of the mounting table in the vertical direction. After the mounting table is detected to be in place by a position detection sensor, a signal is automatically sent, the clamping part is controlled to release the workpiece, and the mounting table is automatically reset. After cutting is completed, the pipe segment is moved out, the clamping part is released, the workpiece is reset, and the like are automatically completed in sequence, the cutting cycle period is shortened, the automatic operation of the cutting assembly is realized, human intervention is not needed, and the production capacity of the whole production line is improved.

Description

Technical Field

[0001] This application relates to the field of metal processing technology, and in particular to a metal tube production apparatus and manufacturing process. Background Technology

[0002] With the rapid development of industrial manufacturing, metal pipes have been widely used in many fields such as construction, machinery, and chemical industry, and their demand is constantly increasing. The production quality and efficiency of metal pipes directly affect the development of related industries. Therefore, improving the performance of metal pipe production equipment has become an important research direction in the field of machinery manufacturing. Advanced metal pipe production technology can improve the quality stability of products, meet the requirements of different industries for the precision and strength of metal pipes, and at the same time help reduce production costs and improve the economic benefits of production enterprises. In addition, efficient production equipment can also reduce energy consumption and environmental pollution, which is in line with the concept of sustainable development.

[0003] In the continuous production of metal pipes, the cutting device usually runs continuously with the production line to cut the conveyed metal pipes to a fixed length. After cutting, the cut metal pipe segments need to be removed from the cutting workpiece, and the cutting device needs to be reset for the next cutting. The speed of this cycle directly affects the cycle time of the cutting process. In existing metal pipe cutting devices, the actions of removing the pipe segments after cutting, releasing the workpiece from the clamping part, and resetting the cutting device often require manual intervention. The actions are not connected smoothly, resulting in a long cutting cycle time. It is difficult to match the cycle time with the upstream continuous conveying forming, welding and other processes, which limits the capacity improvement of the entire production line. In addition, due to the lack of coordination between the actions, the cut pipe segments are prone to jamming or deviation during the conveying process, which affects the output efficiency.

[0004] Regarding the aforementioned technologies, the inventors believe that actions such as resetting the cutting device often require manual intervention, resulting in discontinuous action connections, a long cutting cycle, and difficulty in matching the pace with the upstream continuous conveying process, thus limiting the capacity improvement of the entire production line. Summary of the Invention

[0005] To address the problems mentioned in the background art, this application provides a metal tube production apparatus and manufacturing process.

[0006] The metal tube production apparatus and manufacturing process provided in this application adopt the following technical solution: A metal tube production apparatus includes an unwinding assembly, a coiling assembly, a welding assembly, a grinding assembly, a cleaning assembly, a weld inspection assembly, a cutting assembly, and a discharge assembly. The cutting assembly includes a horizontal slide rail arranged parallel to the ground, a mounting platform slidably mounted on the horizontal slide rail, a cutting component slidably mounted on the top of the mounting platform in a vertical direction, a clamping part mounted on the end of the mounting platform for fixing the metal tube, and abutment blocks movably disposed on both sides of the cutting component. A position detection sensor is installed on the side of the horizontal slide rail near the discharge assembly. The position detection sensor sends a signal when the mounting platform slides to a set position. The signal controls the clamping part to release the metal tube and controls the mounting platform to move in the opposite direction to reset to the initial position. A rough grinding surface is provided on the side of the abutment block near the cutting component. The rough grinding surface increases friction and absorbs residual kinetic energy when it abuts against the outer surface of the cutting component. A driving part is provided between the abutment block and the cutting component. The driving part drives the abutment block to move closer to the cutting component when the cutting component moves to the set position.

[0007] By adopting the above technical solution, after the cutting workpiece is completed, it rises. When it rises to the set position, the drive unit drives the abutment block to swing towards the cutting workpiece. The rough grinding surface abuts against the outer surface of the cutting workpiece, absorbing the residual rotational kinetic energy of the cutting workpiece through friction, causing it to stop rotating quickly and shortening the ineffective waiting time. At the same time, the rough grinding surface grinds the cutting edge of the cutting workpiece during the abutment process, keeping the cutting edge sharp. After the cutting is completed, the mounting table moves along the horizontal slide rail towards the discharge assembly, conveying the cut metal tube segment to the set position. When the mounting table moves to the set position, the position detection sensor sends a signal, the clamping part releases the metal tube segment, allowing it to fall into the discharge assembly. At the same time, the mounting table moves in the opposite direction to reset to the initial position, automatically entering the next cutting cycle. The entire cutting process does not require manual intervention, the actions are connected and smooth, the cutting cycle is shortened, and the rhythm is matched with the upstream continuous conveying process.

[0008] Preferably, the driving unit includes a driving rack disposed at the end of the cutting member and a driving gear rotatably mounted at the end of the abutment block. The driving gear is used to mesh with the driving rack to drive the abutment block to swing toward the cutting member.

[0009] By adopting the above technical solution, the drive unit is further defined. Through the cooperation of the drive rack and drive gear, the abutment block is driven to swing towards the cutting workpiece, so that the abutment block moves closer to the cutting workpiece. The rough grinding surface of the abutment block abuts against the outer surface of the cutting workpiece, thereby increasing the friction and absorbing residual kinetic energy.

[0010] Preferably, a torsion spring is sleeved on the gear shaft of the drive gear, and the torsion spring is used to keep the abutment block in a horizontal position when the drive gear is not engaged.

[0011] By adopting the above technical solution, the position of the abutment block is limited. When the cutting workpiece descends to cut, the torsion spring keeps the abutment block in a horizontal position, thereby avoiding the abutment block from interfering with the normal operation of the cutting workpiece. When the cutting workpiece rises to the set position, the drive rack meshes with the drive gear to overcome the force of the torsion spring and drive the abutment block to swing.

[0012] Preferably, the clamping part includes two clamping blocks disposed opposite to each other on both sides of the metal tube and a clamping cylinder for driving the two clamping blocks to move relative to each other. The two clamping blocks are provided with a clamping arc surface adapted to the outer wall of the metal tube on opposite sides, and both clamping blocks have a gap through which the cutting edge of the cutting piece passes.

[0013] By adopting the above technical solution, the clamping part is defined, and two opposing clamping blocks move relative to each other under the drive of the clamping cylinder. At the same time, the clamping arc surface adapted to the outer wall of the metal tube is used to stably fix the metal tube, thereby improving the positional stability of the metal tube during the cutting process. The gaps on the two clamping blocks for the cutting blade to pass through improve the accuracy of the cutting path of the cutting blade.

[0014] Preferably, the unwinding assembly includes an unwinding frame and an unwinding drive roller, wherein the unwinding frame is used to carry the steel coil and the unwinding drive roller is used to pull the steel bar unwind.

[0015] By adopting the above technical solution and limiting the unwinding assembly, the unwinding frame can carry the steel coil, and the unwinding drive roller can pull the steel strip to unwind, thereby realizing the automated and orderly supply of raw material steel strips for metal pipe production.

[0016] Preferably, the coiling assembly includes a plurality of forming roller groups arranged sequentially along the steel bar conveying direction and a plurality of guide rollers arranged sequentially along the steel bar conveying direction. The plurality of forming roller groups are used to gradually bend and coil the steel bar into a round tube with a longitudinal slit, and the plurality of guide rollers are used to convey and guide the steel bar and the metal tube.

[0017] By adopting the above technical solution and further defining the coiling assembly, multiple forming rollers gradually bend and roll the steel strip into a round tube with longitudinal seams, thus realizing the forming process of the steel strip; multiple guide rollers can transport and guide the steel strip and metal tube, thereby enabling the steel strip and metal tube to be transported automatically and stably throughout the entire processing.

[0018] Preferably, the welding assembly includes a welding gun head for continuous welding of the longitudinal seam, and the grinding assembly includes a grinding wheel and a grinding drive motor. The grinding wheel is disposed on the outer periphery of the metal tube and is used to grind and finish the outer surface of the weld after welding.

[0019] By adopting the above technical solution, the longitudinal seam is continuously welded by the welding gun head of the welding component, so as to achieve a stable connection of the longitudinal seam of the metal pipe; at the same time, the grinding wheel of the grinding component grinds and repairs the outer surface of the weld after welding on the outer circumference of the metal pipe, which can make the weld smoother and improve the quality of the metal pipe.

[0020] Preferably, the cleaning assembly includes a plurality of nozzles disposed on the outer periphery of the metal pipe, the nozzles being used to spray water to rinse away metal debris and dust adhering to the surface of the polished metal pipe, and the weld inspection assembly includes an ultrasonic testing probe for inspecting the weld.

[0021] By adopting the above technical solution, multiple nozzles set on the outer periphery of the metal tube are used to clean the metal debris and dust adhering to the surface of the metal tube after grinding, ensuring the cleanliness of the metal tube surface and facilitating the ultrasonic testing probe to inspect the weld, thereby ensuring that the weld quality meets the requirements.

[0022] Preferably, the discharge assembly includes a discharge trough, a receiving rack installed on one side of the discharge trough, and a top rod disposed at the end of the discharge trough. The top rod is used to lift the metal tube, so that the metal tube slides down the discharge trough to the receiving rack under its own weight.

[0023] By adopting the above technical solution and setting up a top rod, the automatic feeding of metal tubes can be realized. The top rod lifts the metal tubes, allowing them to slide down the discharge trough to the receiving rack under the action of gravity, thereby improving production efficiency and facilitating material collection.

[0024] A metal tube manufacturing process based on the aforementioned metal tube production apparatus includes the following steps: S1: The worker installs the steel coil onto the unwinding frame, and the motor drives the unwinding drive roller to rotate, thereby continuously unwinding the steel strip. S2: The uncoiled steel strip is sequentially fed into multiple forming roller groups, and the steel strip is gradually bent and rolled into a round tube with longitudinal seams by the multiple forming roller groups. The multiple guide rollers guide the steel strip at the front and the metal tube at the rear during the conveying process. S3: The welding torch head is aligned with the longitudinal seam of the metal tube and continuous welding is performed to form a closed metal tube; S4: The outer surface of the weld after welding is polished and repaired by the grinding wheel; S5: Water is sprayed onto the surface of the metal pipe through the nozzle to wash away the metal debris and dust that adhered after polishing. S6: Perform online non-destructive testing of the weld using the ultrasonic testing probe; S7: The clamping cylinder drives the clamping block to clamp and fix the metal tube, and the cutting component descends to cut the metal tube; after the cutting component is completed, it rises. When the cutting edge of the cutting component leaves the clamping part, the driving rack and the driving gear gradually mesh during the rising process of the cutting component, causing the abutment block to swing towards the cutting component, so that the rough grinding surface abuts against the outer surface of the cutting component, absorbing the residual kinetic energy of the cutting component and stopping its rotation, while grinding the cutting edge of the cutting component; after the cutting is completed, the mounting table moves along the horizontal slide rail towards the discharge assembly, and transports the cut metal tube segment to the set position; S8: After the position detection sensor detects that the mounting platform has moved to the set position, it sends a signal. The clamping part releases the metal tube section, and the metal tube section enters the discharge trough. The top rod lifts the metal tube, causing it to slide down the discharge trough to the receiving rack under its own gravity. At the same time, the mounting platform moves in the opposite direction to reset to the initial position and repeats the above cutting steps.

[0025] In summary, this application includes at least one of the following beneficial technical effects: Once the mounting table is in position, the position detection sensor automatically sends a signal to control the clamping part to release the workpiece and control the mounting table to automatically reset. After the cutting is completed, the actions such as the pipe section being removed, the clamping part releasing the workpiece, and the mounting table resetting are completed automatically in sequence, which shortens the cutting cycle and realizes the automated operation of the cutting components without human intervention, thereby improving the capacity of the entire production line. By cooperating with the drive rack and drive gear, the drive abutment block is driven to swing towards the cutting workpiece, so that the abutment block moves closer to the cutting workpiece, and the rough grinding surface of the abutment block abuts against the outer surface of the cutting workpiece, thereby increasing the friction and absorbing residual kinetic energy. By setting a rough grinding surface on the side of the abutment block near the cutting part, the cutting edge of the cutting part is ground when it abuts against the outer side of the cutting edge, keeping the cutting edge of the cutting part sharp, extending the service life of the cutting edge, improving the cutting quality of metal pipes during long-term operation, and reducing the frequency of downtime maintenance. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the roll-forming assembly of the present invention; Figure 3 This is a schematic diagram of the welding assembly of the present invention; Figure 4 This is a schematic diagram of the structure of the grinding component, cleaning component, and weld inspection component of the present invention; Figure 5 This is a partial structural schematic diagram of the present invention; Figure 6This is a schematic diagram of the cutting component and driving part of the present invention; Figure 7 This is a schematic diagram of the material discharge component of the present invention.

[0027] Explanation of reference numerals in the attached drawings: 1. Unwinding assembly; 11. Unwinding frame; 12. Unwinding drive roller; 2. Coiling assembly; 21. Forming roller assembly; 22. Guide roller; 3. Welding components; 31. Welding gun head; 4. Grinding assembly; 41. Grinding wheel; 42. Grinding drive motor; 5. Cleaning components; 51. Nozzle; 6. Weld inspection assembly; 61. Ultrasonic testing probe; 7. Cutting assembly; 71. Horizontal slide rail; 72. Mounting platform; 73. Cutting piece; 74. Clamping part; 741. Clamping block; 742. Clamping arc surface; 743. Clamping cylinder; 744. Gap; 75. Abutment block; 751. Rough polished surface; 76. Position detection sensor; 8. Discharge assembly; 81. Discharge trough; 82. Receiving rack; 83. Top rod; 9. Drive unit; 91. Drive rack; 92. Drive gear; 93. Torsion spring. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0029] This application discloses a metal tube production apparatus and manufacturing process, referring to... Figure 1 A metal tube production device includes an unwinding assembly 1, a coiling assembly 2, a welding assembly 3, a grinding assembly 4, a cleaning assembly 5, a weld inspection assembly 6, a cutting assembly 7, and a discharge assembly 8. The assemblies are arranged sequentially along the conveying direction of the metal tube, forming a fully automated production line from steel coil to finished metal tube. The unwinding assembly 1 is located at the beginning of the production line. The unwinding assembly 1 includes an unwinding frame 11 and an unwinding drive roller 12. The unwinding frame 11 is used to carry the steel coil. The steel coil is sleeved on the unwinding frame 11 and can be freely rotated and unwound. The unwinding drive roller 12 is located behind the unwinding frame 11 and is used to clamp and pull the steel bar for continuous unwinding.

[0030] Reference Figure 2The coiling assembly 2 is located behind the uncoiling assembly 1 and is used to continuously coil straight steel bars into round tubes with longitudinal seams. The coiling assembly 2 includes multiple forming roller groups 21 arranged sequentially along the steel bar conveying direction and multiple guide rollers 22 arranged sequentially along the steel bar conveying direction. The multiple forming roller groups 21 continuously coil straight steel bars into round tubes with longitudinal seams by gradually bending them. Each forming roller group 21 includes an upper forming roller and a lower forming roller arranged opposite to each other. The multiple upper forming roller groups 21 gradually bend and coil the steel bars into round tubes with longitudinal seams by gradually changing the shape of the rollers. The multiple guide rollers 22 are respectively arranged at intervals between and behind the forming roller groups 21 to guide the steel bars and the formed metal tubes during the conveying process.

[0031] Reference Figure 3 and Figure 4 The welding assembly 3 is located behind the coiling assembly 2 and is used to continuously weld the longitudinal seam to form a closed metal tube. The welding assembly 3 includes a welding gun head 31, which is aligned with the longitudinal seam of the metal tube and used to continuously weld the longitudinal seam. The welding method is laser welding. The grinding assembly 4 is located behind the welding assembly 3 and is used to grind and repair the outer surface of the weld after welding. The grinding assembly 4 includes a grinding wheel 41 and a grinding drive motor 42. The grinding wheel 41 is located on the outer periphery of the metal tube and abuts against the weld. The grinding drive motor 42 drives the grinding wheel 41 to rotate and grind and repair the outer surface of the weld after welding, removing the weld excess and surface oxide layer.

[0032] The cleaning component 5 is located behind the grinding component 4 and is used to clean the metal debris and dust adhering to the surface of the metal pipe after grinding. The cleaning component 5 includes multiple nozzles 51 located on the outer periphery of the metal pipe. The nozzles 51 are connected to a water source and are used to spray water onto the surface of the metal pipe to clean the metal debris and dust adhering to the surface after grinding, ensuring that the surface of the metal pipe is clean. The weld inspection component 6 is located behind the cleaning component 5 and is used to perform non-destructive testing on the weld. The weld inspection component 6 includes an ultrasonic testing probe 61 located on the outer periphery of the metal pipe and is used to perform online non-destructive testing on the weld to ensure that the weld quality meets the requirements.

[0033] Reference Figure 5 and Figure 6 The cutting component 7 is located behind the weld inspection component 6 and is used to cut the continuously conveyed metal pipe into segments. The cutting component 7 includes a horizontal slide rail 71, a mounting platform 72, a cutting component 73, a clamping part 74, and an abutment block 75. The horizontal slide rail 71 is arranged parallel to the ground and is fixedly installed on the base of the cutting component 7. The horizontal slide rail 71 extends along the metal pipe conveying direction. The mounting platform 72 is slidably installed on the horizontal slide rail 71 and can move back and forth along the horizontal slide rail 71 in the metal pipe conveying direction.

[0034] The cutting element 73 is slidably mounted on the top of the mounting platform 72 in a vertical direction. The cutting element 73 is controlled by a cylinder in conjunction with a vertical slide rail to move up and down in the vertical direction. The cutting element 73 is a disc-shaped rotating cutting blade. It rotates at high speed to cut the metal tube during descent and exits the cutting position when rising. The clamping part 74 is mounted on the top of the mounting platform 72 and is used to fix the metal tube during the cutting process to prevent the metal tube from shifting during cutting. The clamping part 74 includes two clamping blocks 741 that are arranged opposite to each other on both sides of the metal tube and a clamping cylinder 743 that drives the two clamping blocks 741 to move relative to each other. The two clamping blocks 741 have a clamping arc surface 742 that is adapted to the outer wall of the metal tube on one side opposite to each other. The clamping arc surface 742 can fit tightly against the outer wall of the metal tube. Both clamping blocks 741 have a gap 744 through which the blade of the cutting element 73 passes.

[0035] Reference Figure 6 The abutment blocks 75 are movably disposed on both sides of the cutting member 73. A rough grinding surface 751 is provided on the side of the abutment block 75 closest to the cutting member 73. A driving part 9 is provided between the abutment block 75 and the cutting member 73. The driving part 9 includes a driving rack 91 and a driving gear 92. The driving rack 91 is fixedly disposed at the end of the vertical slide rail of the cutting member 73. The driving gear 92 is rotatably mounted on the end of the abutment block 75 and is used to mesh with the driving rack 91. A torsion spring 93 is sleeved on the gear shaft of the driving gear 92. The torsion spring 93 is used to keep the abutment block 75 in place when the driving gear 92 is not engaged. When the cutting piece 73 is lowered to cut, the drive rack 91 disengages from the drive gear 92, and the abutment block 75 remains in a horizontal position under the action of the torsion spring 93. When the cutting piece 73 is finished cutting and rises, the cutting edge of the cutting piece 73 leaves the clamping part 74 and rises to the set position. The drive rack 91 gradually engages with the drive gear 92. The drive rack 91 continues to rise with the cutting piece 73, driving the drive gear 92 to rotate. The drive gear 92 drives the abutment block 75 to swing towards the cutting piece 73. The rough polished surface 751 on the abutment block 75 abuts against the outer surface of the cutting piece 73.

[0036] A position detection sensor 76 is installed on the side of the horizontal slide rail 71 near the discharge assembly 8. The position detection sensor 76 is used to send a signal when the mounting table 72 slides to the set position. This signal is used to control the clamping part 74 to release the metal tube section and control the mounting table 72 to move in the opposite direction to reset to the initial position.

[0037] Reference Figure 7The discharge assembly 8 is located behind the cutting assembly 7 and is used to transport and collect the cut metal pipe segments. The discharge assembly 8 includes a discharge trough 81, a receiving rack 82, and a top rod 83. The starting end of the discharge trough 81 is connected to the end of the cutting assembly 7. A roller for sliding the metal pipe is rotatably installed inside the discharge trough 81, which facilitates the movement of the metal pipe along the discharge trough 81. The receiving rack 82 is installed on one side of the discharge trough 81. The top rod 83 is located at the bottom of the discharge trough 81 and is used to extend and lift the metal pipe, so that the metal pipe slides down to the receiving rack 82 under its own weight.

[0038] This application also includes a metal tube manufacturing process, comprising the following steps: S1: The worker installs the steel coil on the unwinding frame 11, and the motor drives the unwinding drive roller 12 to rotate, thereby continuously unwinding the steel strip. S2: The uncoiled steel strip is fed into multiple forming roller groups 21 in sequence. The steel strip is gradually bent and rolled into a round tube with longitudinal seams by the multiple forming roller groups 21. Multiple guide rollers 22 guide the steel strip at the front and the metal tube at the rear during the conveying process. S3: The welding gun head 31 is aligned with the longitudinal seam of the metal tube and continuously welded to form a closed metal tube; S4: The outer surface of the weld after welding is polished and repaired by the grinding wheel 41; S5: Water is sprayed onto the surface of the metal tube through nozzle 51 to wash away the metal shavings and dust that adhered after polishing. S6: Online non-destructive testing of the weld is performed using ultrasonic testing probe 61; S7: The clamping cylinder 743 drives the clamping block 741 to clamp and fix the metal tube, and the cutting part 73 descends to cut the metal tube; after the cutting part 73 is cut, it rises. When the cutting edge of the cutting part 73 leaves the clamping part 74, the driving rack 91 and the driving gear 92 gradually mesh during the rising process of the cutting part 73, which drives the abutment block 75 to swing towards the cutting part 73, so that the rough grinding surface 751 abuts against the outer surface of the cutting part 73, absorbs the residual kinetic energy of the cutting part 73 and stops it from rotating, and at the same time grinds the cutting edge of the cutting part 73; after the cutting is completed, the mounting table 72 moves along the horizontal slide rail 71 towards the discharge assembly 8, and transports the cut metal tube segment to the set position. S8: After the position detection sensor 76 detects that the mounting table 72 has moved to the set position, it sends a signal. The clamping part 74 releases the metal tube section, and the metal tube section enters the discharge trough 81. The push rod 83 lifts the metal tube, so that it slides down the discharge trough 81 to the receiving rack 82 under its own gravity. At the same time, the mounting table 72 moves in the opposite direction to reset to the initial position and repeats the above cutting steps.

[0039] The implementation principle of this application embodiment is as follows: In the initial state, the steel coil is installed on the unwinding frame 11. The unwinding drive roller 12 pulls the steel strip to continuously unwind. Through the rotation of multiple guide rollers 22, the steel strip and metal tube are continuously pulled and conveyed backward. The steel strip passes through multiple forming roller groups 21 in sequence and is gradually bent and rolled into a round tube with a longitudinal seam. The welding gun head 31 continuously welds the longitudinal seam to form a closed metal tube. The grinding wheel 41 grinds and finishes the outer surface of the weld. The nozzle 51 sprays water onto the surface of the metal tube to clean debris and dust. The ultrasonic detection probe 61... The weld is subjected to online non-destructive testing. After the continuous metal tube has been tested, it enters the cutting assembly 7. The clamping cylinder 743 drives the clamping block 741 to clamp and fix the metal tube. At this time, the guide roller 22 stops rotating. The cutting part 73 descends and rotates to cut the metal tube. After the cutting is completed, the cutting part 73 rises. When it rises to the set position, the driving rack 91 meshes with the driving gear 92, which drives the abutment block 75 to swing towards the cutting part 73. The rough grinding surface 751 abuts against the outer surface of the cutting part 73, absorbing the residual kinetic energy and causing it to stop rotating quickly.

[0040] After cutting, the mounting table 72 moves along the horizontal slide rail 71 toward the discharge assembly 8, conveying the cut metal pipe segment to the discharge assembly 8. The position detection sensor 76 detects that the mounting table 72 is in place and sends a signal. The clamping part 74 releases the metal pipe segment, and the metal pipe segment enters the discharge trough 81. The push rod 83 extends and lifts the metal pipe, causing it to detach from the discharge trough 81 and slide onto the receiving rack 82. At the same time, the mounting table 72 moves in the opposite direction to reset to the initial position, and the next cutting cycle begins.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A metal pipe production apparatus, comprising an unwinding assembly (1), a coiling assembly (2), a welding assembly (3), a grinding assembly (4), a cleaning assembly (5), a weld inspection assembly (6), a cutting assembly (7), and a discharge assembly (8), characterized in that, The cutting assembly (7) includes a horizontal slide rail (71) arranged parallel to the ground, a mounting platform (72) slidably mounted on the horizontal slide rail (71), a cutting component (73) slidably mounted on the top of the mounting platform (72) in a vertical direction, a clamping part (74) mounted on the end of the mounting platform (72) for fixing the metal tube, and abutment blocks (75) movably disposed on both sides of the cutting component (73). A position detection sensor (76) is installed on the side of the horizontal slide rail (71) near the discharge assembly (8). The position detection sensor (76) is used to send a signal when the mounting platform (72) slides to a set position. The signal is used to control the clamping part (74) to release the metal tube and control the mounting platform (72) to move in the opposite direction and reset to the initial position. The abutment block (75) has a rough polishing surface (751) on the side near the cutting part (73). The rough polishing surface (751) is used to increase friction and absorb residual kinetic energy when it abuts against the outer surface of the cutting part (73). A driving part (9) is provided between the abutment block (75) and the cutting part (73). The driving part (9) is used to drive the abutment block (75) to move closer to the cutting part (73) when the cutting part (73) moves to a set position.

2. The metal tube production apparatus according to claim 1, characterized in that, The drive unit (9) includes a drive rack (91) disposed at the end of the cutting member (73) and a drive gear (92) rotatably mounted at the end of the abutment block (75). The drive gear (92) is used to mesh with the drive rack (91) to drive the abutment block (75) to swing toward the cutting member (73).

3. The metal tube production apparatus according to claim 2, characterized in that, A torsion spring (93) is fitted on the gear shaft of the drive gear (92). The torsion spring (93) is used to keep the abutment block (75) in a horizontal position when the drive gear (92) is not engaged.

4. The metal tube production apparatus according to claim 1, characterized in that, The clamping part (74) includes two clamping blocks (741) disposed opposite to each other on both sides of the metal tube and a clamping cylinder (743) for driving the two clamping blocks (741) to move relative to each other. The two clamping blocks (741) are provided with clamping arc surfaces (742) adapted to the outer wall of the metal tube on opposite sides. Both clamping blocks (741) have gaps (744) through which the cutting edge of the cutting piece (73) passes.

5. A metal tube production apparatus according to claim 1, characterized in that, The unwinding assembly (1) includes an unwinding frame (11) and an unwinding drive roller (12). The unwinding frame (11) is used to carry the steel coil, and the unwinding drive roller (12) is used to pull the steel bar unwind.

6. A metal tube production apparatus according to claim 1, characterized in that, The coiling assembly (2) includes a plurality of forming roller groups (21) arranged sequentially along the steel bar conveying direction and a plurality of guide rollers (22) arranged sequentially along the steel bar conveying direction. The plurality of forming roller groups (21) are used to gradually bend and coil the steel bar into a round tube with longitudinal seams, and the plurality of guide rollers (22) are used to convey and guide the steel bar and the metal tube.

7. A metal tube production apparatus according to claim 1, characterized in that, The welding assembly (3) includes a welding gun head (31), which is used to continuously weld the longitudinal seam. The grinding assembly (4) includes a grinding wheel (41) and a grinding drive motor (42). The grinding wheel (41) is located on the outer periphery of the metal pipe and is used to grind and repair the outer surface of the weld after welding.

8. A metal tube production apparatus according to claim 1, characterized in that, The cleaning component (5) includes a plurality of nozzles (51) disposed on the outer periphery of the metal pipe. The nozzles (51) are used to spray water to rinse away metal debris and dust adhering to the surface of the polished metal pipe. The weld inspection component (6) includes an ultrasonic inspection probe (61) for inspecting the weld.

9. A metal tube production apparatus according to claim 1, characterized in that, The discharge assembly (8) includes a discharge trough (81), a receiving rack (82) installed on one side of the discharge trough (81), and a top rod (83) set at the end of the discharge trough (81). The top rod (83) is used to lift the metal tube so that the metal tube slides down the discharge trough (81) to the receiving rack (82) under its own weight.

10. A metal tube manufacturing process according to any one of claims 1 to 9, characterized in that, Includes the following steps: S1: The worker installs the steel coil on the unwinding frame (11), and the motor drives the unwinding drive roller (12) to rotate, thereby pulling the steel bar to continuously unwind; S2: The uncoiled steel strip is fed into multiple forming roller groups (21) in sequence. The multiple forming roller groups (21) gradually bend and roll the steel strip into a round tube with longitudinal seams. The multiple guide rollers (22) guide the front steel strip and the rear metal tube respectively during the conveying process. S3: The welding gun head (31) is aligned with the longitudinal seam of the metal tube for continuous welding to form a closed metal tube; S4: The outer surface of the weld after welding is polished and repaired by the grinding wheel (41); S5: Water is sprayed onto the surface of the metal tube through the nozzle (51) to wash away the metal debris and dust that adhered after polishing. S6: Perform online non-destructive testing on the weld using the ultrasonic testing probe (61); S7: The clamping cylinder (743) drives the clamping block (741) to clamp and fix the metal tube. The cutting piece (73) descends to cut the metal tube. After the cutting is completed, the cutting piece (73) rises. When the blade of the cutting piece (73) leaves the clamping part (74), the driving rack (91) and the driving gear (92) gradually mesh during the rising process of the cutting piece (73), causing the abutment block (75) to swing towards the cutting piece (73), so that the rough grinding surface (751) abuts against the outer surface of the cutting piece (73), absorbing the residual kinetic energy of the cutting piece (73) to stop its rotation, and at the same time grinding the cutting edge of the cutting piece (73). After the cutting is completed, the mounting table (72) moves along the horizontal slide rail (71) towards the discharge assembly (8) to transport the cut metal tube segment to the set position. S8: After the position detection sensor (76) detects that the mounting platform (72) has moved to the set position, it sends a signal. The clamping part (74) releases the metal tube segment, and the metal tube segment enters the discharge trough (81). The top rod (83) lifts the metal tube, so that it slides down the discharge trough (81) to the receiving rack (82) under its own gravity. At the same time, the mounting platform (72) moves in the opposite direction to reset to the initial position and repeats the above cutting steps.

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