Pipe bending and cutting apparatus

Abstract

This invention relates to the field of pipe cutting equipment technology, and particularly to a pipe bending cutting device, comprising a base assembly, a swing support assembly, a transmission guide assembly, a cutting mechanism, an angle adjustment mechanism, and a drive unit. One end of the swing support assembly is hinged to the base assembly, and the other end is connected to the angle adjustment mechanism disposed on the base assembly. The transmission guide assembly includes an arc-shaped transmission component and an arc-shaped guide component, both of which are detachably disposed on the swing support assembly. The arc shapes of the arc-shaped transmission component and the arc shapes of the arc-shaped guide component are parallel, and the arc shape of the arc-shaped guide component is the same as the arc shape of the bent pipe to be cut. The cutting mechanism is slidably disposed on the arc-shaped guide component along the arc shape of the arc-shaped guide component. The drive unit is disposed on the cutting mechanism and is used to drive the cutting mechanism to move along the arc shape of the arc-shaped guide component as the bent pipe enters the cutting mechanism, so that the cutter of the cutting mechanism is always perpendicular to the bent pipe, thereby adapting to the cutting requirements of bent pipes with different bending shapes.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting equipment technology, and in particular to a pipe bending and cutting equipment. Background Technology

[0002] Currently, an existing patent (publication number: CN110977481A) discloses an integrated bending and cutting machine for metal pipe processing, including a machine body, a mandrel on the machine body, a pipe fitted on the outside of the mandrel, a bending mechanism for bending the end of the pipe at the end of the machine body, a connecting rod coaxially connected to the end of the mandrel, the end of the connecting rod being fixedly connected to the machine body, the diameter of the connecting rod being smaller than the diameter of the mandrel, a limit plate fitted on the connecting rod, the end of the pipe abutting against the limit plate, the limit plate being fixedly connected to one end of a first hydraulic cylinder, the first hydraulic cylinder being parallel to the connecting rod, the other end of the first hydraulic cylinder being fixed to the machine body, and a cutting mechanism for cutting the pipe at the connection between the mandrel and the connecting rod being provided in the middle of the machine body.

[0003] Although the aforementioned pipe bending and cutting integrated machine can cut pipes, when the bending shape of the pipe changes, the tangential direction of the pipe to be cut will change. However, the posture of the cutting mechanism is fixed, which means that the cutting blade of the cutting mechanism cannot always be perpendicular to the pipe. Therefore, it is difficult to adapt to the cutting needs of pipes with different bending shapes, and thus cannot guarantee the consistency of the pipe cut. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a pipe bending and cutting device, which aims to solve the technical problem that the cutter of the existing cutting mechanism cannot always be perpendicular to the pipe, thus making it difficult to adapt to the cutting needs of pipes with different bending shapes, and thus failing to guarantee the consistency of the pipe cutting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pipe bending and cutting device, comprising

[0007] Base assembly;

[0008] A swing support assembly, one end of which is hinged to the base assembly;

[0009] A transmission guide assembly is disposed on the swing support assembly. The transmission guide assembly includes an arc-shaped transmission component and an arc-shaped guide component. The arc-shaped transmission component is detachably disposed on the swing support assembly, and the arc-shaped guide component is detachably disposed on the arc-shaped transmission component. The arc shape of the arc-shaped transmission component is parallel to the arc shape of the arc-shaped guide component, and the arc shape of the arc-shaped guide component is the same as the arc shape of the bent pipe to be cut.

[0010] A cutting mechanism is slidably disposed on the arc-shaped guide along the arc of the arc-shaped guide. The cutting mechanism is used to support, limit, and cut the bent pipe with the same arc as the arc of the arc-shaped guide.

[0011] An angle adjustment mechanism is provided on the base assembly and drivenly connected to the other end of the swing support assembly. The angle adjustment mechanism is used to adjust the angle at which the swing support assembly swings around the axis of the hinge so that the arc of the arc guide can be parallel to the arc of the bent pipe entering the cutting mechanism.

[0012] A drive unit is mounted on the cutting mechanism and drivenly connected to the arc-shaped transmission component. The drive unit is used to drive the cutting mechanism to move along the arc of the arc-shaped guide component as the bent pipe enters the cutting mechanism, so that the cutter of the cutting mechanism is always perpendicular to the bent pipe.

[0013] Furthermore, the linear velocity of the cutting mechanism moving along the arc-shaped transmission member is the same as the linear velocity of the bent pipe entering the cutting mechanism.

[0014] Furthermore, the base assembly includes a first mounting base and a lifting mechanism. The lifting mechanism is fixed on the first mounting base and is drivenly connected to the swing support assembly to drive the swing support assembly to move vertically up and down.

[0015] Furthermore, the base assembly also includes a base and a centering adjustment mechanism. The base is located below the first mounting seat, and the centering adjustment mechanism is located between the first mounting seat and the base. The centering adjustment mechanism is used to drive the first mounting seat to move the angle adjustment mechanism, the swing support assembly, the transmission guide assembly, and the cutting mechanism in the horizontal direction so that the bent pipe to be cut can enter the cutting mechanism.

[0016] Furthermore, the centering adjustment mechanism includes a guide rail, a pulley assembly, and a drive mechanism. The guide rail extends along a first horizontal direction and is fixed on the base. The horizontal tangent of the bent tube entering the cutting mechanism is a second horizontal direction perpendicular to the first horizontal direction. The pulley assembly is disposed on the first mounting seat and slidably connected to the guide rail. The drive mechanism is disposed on the base and is used to drive the first mounting seat to slide along the guide rail.

[0017] Furthermore, the cutting mechanism is equipped with a feeding assembly for receiving and outputting the pipes cut by the cutting mechanism.

[0018] Furthermore, the feeding assembly includes a fixed base, a slot frame, and a telescopic unit. The fixed base is fixed to the cutting mechanism, and the slot frame is hinged to the fixed base. The axis of hinge between the slot frame and the fixed base and the axis of hinge between the swing support assembly and the base assembly are parallel to each other. The slot frame is used to receive the pipe cut by the cutting mechanism. The telescopic unit is disposed on the cutting mechanism and is used to drive the slot frame to swing around the fixed base.

[0019] Furthermore, the drive unit includes a servo motor and a drive gear, the arc-shaped transmission component is configured as an arc-shaped rack, the servo motor is fixed on the cutting mechanism, the output shaft of the servo motor is drivenly connected to the drive gear, and the drive gear meshes with the arc-shaped rack for transmission.

[0020] Furthermore, the cutting mechanism is provided with a set of traveling wheels, which includes an upper traveling wheel and a lower traveling wheel. The upper traveling wheel abuts against the upper surface of the arc-shaped guide, and the lower traveling wheel abuts against the lower surface of the arc-shaped guide.

[0021] Furthermore, the two ends of the arc-shaped guide are provided with blocking members to prevent the cutting mechanism from detaching from the arc-shaped guide.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] In use, the pipe bending and cutting device of the present invention operates as follows: Since the arc shape of the arc-shaped transmission component is parallel to the arc shape of the arc-shaped guide component, the cutting mechanism slides along the arc shape of the arc-shaped guide component. The driving unit is mounted on the cutting mechanism and driven by the arc-shaped transmission component. Therefore, under the drive of the driving unit, the cutting mechanism moves along the arc shape of the arc-shaped guide component. Furthermore, since the arc shape of the arc-shaped guide component is the same as the arc shape of the bent pipe entering the cutting mechanism, when the arc shape of the bent pipe entering the cutting mechanism is parallel to the arc shape of the arc-shaped guide component, the movement trajectory of the cutting mechanism is parallel to the arc shape of the bent pipe, thus ensuring that the cutting blade of the cutting mechanism moves parallel to the arc shape of the bent pipe entering the cutting mechanism. The bent pipe to be cut is perpendicular to the base assembly. When the bending shape of the bent pipe changes, causing the arc of the bent pipe to be non-parallel to the arc of the arc guide, the angle adjustment mechanism drives the swing support assembly to swing around the base assembly, adjusting the bending shape of the arc guide so that the arc of the arc guide is parallel to the arc of the bent pipe entering the cutting mechanism. This ensures that the movement trajectory of the cutting mechanism is parallel to the arc of the bent pipe, guaranteeing that the cutter of the cutting mechanism is always perpendicular to the bent pipe entering the cutting mechanism. Based on the fact that the cutter of the cutting mechanism is always perpendicular to the bent pipe, the bent pipe is cut after being limited by the cutting mechanism.

[0024] In summary, during the cutting of a bent pipe, the swing support assembly can swing along the bending direction of the pipe, enabling the cutting mechanism to follow the pipe synchronously. This allows the movement of the cutting mechanism to match the spatial shape of the bent pipe, thus providing stable support for the pipe and completing the cutting process. This adapts to the cutting requirements of bent pipes with different bending shapes and ensures the consistency of the pipe cut. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the pipe bending and cutting device of the present invention;

[0026] Figure 2 for Figure 1 The front view;

[0027] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0028] Figure 4 This is a schematic diagram illustrating the connection between the walking wheel assembly, drive wheel, and guide transmission assembly in an embodiment.

[0029] Figure 5 This is a schematic diagram of the structure connecting the cutting mechanism, the feeding assembly, and the drive unit in the embodiment;

[0030] Figure 6 for Figure 5 Another structural diagram from a different angle;

[0031] Figure 7 This is a schematic diagram of the drive mechanism involved in the embodiment;

[0032] Figure 8 This is one of the bending shapes of the pipe involved in the embodiment;

[0033] Figure 9 This is the second bending configuration of the pipe involved in the embodiment;

[0034] Figure 10 The third bending configuration of the pipe involved in the embodiment is shown.

[0035] Numbers in the attached drawings:

[0036] 1. Base assembly; 10. Base; 11. Guide rail; 12. Pulley; 13. Drive mechanism; 130. Drive structure; 131. Screw transmission mechanism; 14. First mounting seat; 15. Lifting mechanism; 16. Connecting seat; 2. Swing support assembly; 20. Swing seat; 201. First hinge shaft; 21. Mounting plate; 22. Second mounting seat; 3. Transmission guide assembly; 30. Arc-shaped transmission component; 31. Arc-shaped guide component; 4. Cutting mechanism; 40. Base; 401. Upper traveling wheel; 402. Lower traveling wheel; 41. Cutting assembly; 410. Cutting blade; 42. Discharge port; 43. Feed port; 5. Angle adjustment mechanism; 6. Drive unit; 60. Servo motor; 61. Drive wheel; 7. Unloading assembly; 70. Groove frame; 71. Fixed seat; 72. Telescopic unit; 8. Blocking component; 9. Bend. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0039] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, it should be noted that in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] Please refer to Figure 1-7This invention provides a pipe bending and cutting device, including a base assembly 1, a swing support assembly 2, a transmission guide assembly 3, a cutting mechanism 4, an angle adjustment mechanism 5, a drive unit 6, and a feeding assembly 7. The base assembly 1 includes a base 10, a centering adjustment mechanism, a first mounting seat 14, a lifting mechanism 15, and a connecting seat 16. The base 10 is located below the first mounting seat 14, and the centering adjustment mechanism is located between the first mounting seat 14 and the base 10. The centering adjustment mechanism drives the first mounting seat 14 to move horizontally in a first direction. The lifting mechanism 15 is fixed to the first mounting seat 14 and drivenly connected to the connecting seat 16. The lifting mechanism 15 drives the connecting seat 16 to move vertically. In this embodiment, a screw jack is used for the lifting mechanism 15, which improves the lifting accuracy of the connecting seat 16.

[0041] Reference Figures 1-3 The centering adjustment mechanism includes guide rails 11, pulley 12 assemblies, and a drive mechanism 13. Two guide rails 11 are provided, fixed at intervals along a second horizontal direction on the base 10. The second horizontal direction is coplanar with and perpendicular to a first horizontal direction, and each guide rail 11 extends along the first horizontal direction. Two sets of pulley 12 assemblies are provided, each corresponding to one of the two guide rails 11. Each pulley 12 assembly includes multiple pulleys 12, which are located at the bottom of the first mounting base 14 and slidably connected to the guide rails 11, allowing the first mounting base 14 to slide along the guide rails 11 under the action of the pulleys 12. The drive mechanism 13 is located on the base 10 and is drivenly connected to the first mounting base 14, used to drive the first mounting base 14 to slide along the guide rails 11. It is worth noting that the introduction of the pulley 12 assemblies effectively reduces the frictional resistance of the mounting base, improves adjustment sensitivity, and is suitable for frequent centering conditions.

[0042] Reference Figure 1 and Figure 7 In this embodiment, the drive mechanism 13 includes a lead screw transmission mechanism 131 mounted on the base 10 and drivenly connected to the first mounting seat 14. A drive structure 130 is mounted on the base 10 and is used to drive the lead screw transmission mechanism 131 to move the first mounting seat 14 along the guide rail 11. In this embodiment, the drive structure 130 manually rotates the lead screw of the lead screw transmission mechanism 131; however, in other embodiments, the drive structure 130 may also electrically rotate the lead screw of the lead screw transmission mechanism 131.

[0043] Reference Figure 1 , Figure 2One end of the swing support assembly 2 is hinged to the base assembly 1, and the other end of the swing support assembly 2 is connected to the angle adjustment mechanism 5 fixed on the base assembly 1. The swing support assembly 2 includes a swing seat 20, a mounting plate 21, and a second mounting seat 22. The first end of the swing seat 20 is hinged to the first end of the connecting seat 16 via a first hinge shaft 201. The first hinge shaft 201 extends along a first direction, allowing the swing seat 20 to swing around the first hinge shaft 201. The mounting plate 21 is fixed to the top of the swing seat 20. The mounting plate 21 is sloped along a second direction and slopes from bottom to top starting from the end of the mounting plate 21 closest to the first hinge shaft 201. The second mounting seat 22 is fixed to the top surface of the mounting plate 21 along the slope of the mounting plate 21.

[0044] Reference Figure 1 , Figure 2 The angle adjustment mechanism 5 is fixed to the second end of the connecting seat 16 and driven to connect with the swing seat 20. Thus, the angle adjustment mechanism 5 can drive the swing support assembly 2 to swing around the first hinge axis 201 by driving the swing seat 20 to rise and fall. In this embodiment, the angle adjustment mechanism 5 is a worm gear jack. Since the worm gear jack has a reverse self-locking function, when the worm gear jack stops driving, the swing support assembly 2 cannot reverse the rotation of the worm, so that the swing support assembly 2 is stably stopped at the current angle without the need for an additional braking mechanism.

[0045] Reference Figure 1 , Figure 2 , Figure 4 and Figure 8 The transmission guide assembly 3 is mounted on the swing support assembly 2. The transmission guide assembly 3 includes an arc-shaped transmission component 30 and an arc-shaped guide component 31. The arc-shaped transmission component 30 is detachably mounted on the swing support assembly 2, and the arc-shaped guide component 31 is detachably mounted on the arc-shaped transmission component 30. The arc shape of the arc-shaped transmission component 30 is parallel to the arc shape of the arc-shaped guide component 31, and the arc shape of the arc-shaped guide component 31 is the same as the arc shape of the bent pipe 9 to be cut. Specifically, the aforementioned arc-shaped transmission components 30 are provided on opposite side walls of the second mounting of the swing support assembly 2. The arc-shaped transmission components 30 are locked onto the second mounting base 22 by screws, and the arc-shaped guide component 31 is fixed to the arc-shaped transmission component 30 by screws.

[0046] Reference Figure 1 , Figure 2 and Figure 8 The cutting mechanism 4 is slidably mounted on the arc-shaped guide 31 along its arc shape. The cutting mechanism 4 is used to support, limit, and cut the bent pipe 9, which has the same arc shape as the arc-shaped guide 31. It should be noted that the use of the cutting mechanism 4 to support, limit, and cut the bent pipe 9 is a conventional technique in bent pipe cutting machines and will not be described here.

[0047] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6 The cutting mechanism 4 includes a base 40 and a cutting assembly 41. The cutting assembly 41 is fixed on the base 40. The base 40 has a set of traveling wheels on its two opposite side walls. The set of traveling wheels includes an upper traveling wheel 401 and a lower traveling wheel 402. The upper traveling wheel 401 abuts against the upper surface of the arc-shaped guide 31, and the lower traveling wheel 402 abuts against the lower surface of the arc-shaped guide 31. Thus, the cutting mechanism 4 can travel along the arc of the arc-shaped guide 31 under the drive of the driving force.

[0048] Reference Figure 1 , Figure 2 , Figure 4 and Figure 8 The drive unit 6 is mounted on the cutting mechanism 4 and driven by the arc-shaped transmission component 30. The drive unit 6 drives the cutting mechanism 4 to move along the arc of the arc-shaped guide component 31 along with the bent pipe 9 entering the cutting mechanism 4, ensuring that the cutter 410 of the cutting mechanism 4 is always perpendicular to the bent pipe 9 entering the cutting mechanism 4. The drive unit 6 includes a servo motor 60 and a drive gear. The arc-shaped transmission component 30 is configured as an arc-shaped rack. The servo motor 60 is fixed on the base 40 of the cutting mechanism 4, and the output shaft of the servo motor 60 is driven by the drive gear. The drive gear meshes with the arc-shaped rack for transmission. Therefore, under the drive of the servo motor 60, the drive gear rotates while the arc-shaped rack remains fixed. Thus, the meshing transmission of the drive gear and the arc-shaped rack can drive the cutting mechanism 4 to slide along the arc of the arc-shaped guide component 31.

[0049] Of course, refer to Figure 1 There are blocking members 8 fixed at both ends of the arc-shaped guide member 31, so that when the cutting mechanism 4 slides along the arc-shaped guide member 31, the cutting mechanism 4 will not detach from the arc-shaped guide member 31.

[0050] The linear velocity of the cutting mechanism 4 moving along the arc-shaped transmission member 30 is the same as the linear velocity of the bent pipe 9 entering the cutting mechanism 4 from the feed port 43, thus achieving speed synchronization between the cutting mechanism 4 and the bent pipe 9 during the dynamic cutting process. Specifically, since the linear velocity of the cutting mechanism 4 moving along the arc-shaped guide member 31 is always consistent with the linear velocity of the bent pipe 9 entering the cutting mechanism 4, the cutter 410 is in a state of near "relative stillness" relative to the local surface of the bent pipe 9 being cut. This eliminates the lateral shearing disturbance, cutter 410 sway, and elastic rebound interference caused by the speed difference, thereby reducing cutting vibration and impact load, improving the perpendicularity of the cut and the flatness of the end face, preventing the increase of burrs and the slant of the cut, and ensuring the cutting accuracy of the bent pipe 9.

[0051] It should be noted that as long as the speed parameters of the servo motor 60 controlling the cutting mechanism 4 along the arc-shaped guide 31 are the same as the conveying speed parameters of the production line used to convey the bent pipe 9 into the cutting mechanism 4, it can be ensured that the linear speed of the cutting mechanism 4 moving along the arc-shaped transmission 30 is the same as the linear speed of the bent pipe 9 entering the cutting mechanism 4 from the feed port 43.

[0052] The horizontal tangent (parallel to the ground) of the bent pipe 9 entering the cutting mechanism 4 is a horizontal second direction perpendicular to the first horizontal direction. Furthermore, when the bent pipe 9 enters the cutting mechanism 4 from the feed inlet 43, the arc opening of the bent pipe 9 always faces upwards, such as... Figure 8 As shown or as Figure 9 As shown or as Figure 10 As shown. Among them, Figure 8 , Figure 9 and Figure 10 The shapes shown are different, but the arc shape is the same.

[0053] It should be noted that the bent pipe 9 in this embodiment refers to the cold-bent arc-shaped pipe.

[0054] Reference Figure 1 , Figure 2 The feeding assembly 7 is mounted on the cutting mechanism 4 and is used to receive and output the pipes cut by the cutting mechanism 4. The feeding assembly 7 includes a fixed base 71, a slot frame 70, and a telescopic unit 72. The fixed base 71 is fixed on the base 40 of the cutting mechanism 4. The slot frame 70 is hinged to the fixed base 71 via a second hinge shaft, which is parallel to the first hinge shaft 201. The slot frame 70 is used to receive the pipes cut by the cutting mechanism 4. The telescopic unit 72 is fixed on the cutting assembly 41 of the cutting mechanism 4. The telescopic unit 72 is a telescopic cylinder used to drive the slot frame 70 to swing around the fixed base 71. Of course, in order to allow the pipes cut by the cutting mechanism 4 to smoothly enter the slot frame 70, the feed end of the slot frame 70 is connected to the discharge port 42 of the cutting mechanism 4.

[0055] In summary, the centering adjustment mechanism can drive the angle adjustment mechanism 5, the swing support assembly 2, the transmission guide assembly 3, and the cutting mechanism 4 to move along the first horizontal direction, thereby aligning the cutting mechanism 4 with the production line of the conveying bent pipe 9. This allows the bent pipe 9 to be cut to enter the cutting mechanism 4 through the feed inlet 43. The lifting mechanism 15 can drive the swing support assembly 2, the angle adjustment mechanism 5, and the cutting mechanism 4 to move vertically, thereby compensating for the difference in the conveying height of the bent pipe 9 in the production line and ensuring that the cutting mechanism 4 is always at the optimal cutting height. The angle adjustment mechanism 5 can adjust the angle of rotation of the swing support assembly 2 around the first hinge axis 201, so that the arc of the arc guide 31 can be parallel to the arc of the bent pipe 9 entering the cutting mechanism 4, in order to adapt to the cutting of bent pipes 9 with different bending shapes. Under the action of the driving device, the cutting mechanism 4 maintains the same or approximately the same linear velocity as the bent pipe 9, realizing follow-up cutting, effectively reducing the relative speed at the moment of cutting, reducing cutting impact, and improving the cut quality.

[0056] Working principle of the invention:

[0057] First, the inlet 43 of the cutting mechanism 4 is aligned with the outlet 42 of the production line conveying the bent pipe 9 by the centering adjustment mechanism. Then, the height of the cutting mechanism 4 is adjusted by the lifting mechanism 15 so that the inlet 43 of the cutting mechanism 4 is connected with the outlet 42 of the production line, thereby allowing the bent pipe 9 to automatically enter the cutting mechanism 4 under the conveying of the production line. When the bent pipe 9 enters the cutting mechanism 4, the arc opening of the bent pipe 9 always faces upward. Since the arc shape of the arc-shaped transmission component 30 is parallel to the arc shape of the arc-shaped guide component 31, the cutting mechanism 4 is slidably mounted on the arc-shaped guide component 31 along the arc shape. The drive unit 6 is mounted on the cutting mechanism 4 and drivenly connected to the arc-shaped transmission component 30. Therefore, under the drive of the drive unit 6, the cutting mechanism 4 moves along the arc shape of the arc-shaped guide component 31. Since the arc shape of the arc-shaped guide component 31 is the same as the arc shape of the bent pipe 9 to be cut entering the cutting mechanism 4, when the bent pipe 9 to be cut enters the cutting mechanism 4... When the arc of the pipe 9 is parallel to the arc of the arc guide 31, the movement trajectory of the cutting mechanism 4 is parallel to the arc of the pipe 9, so that the cutter 410 of the cutting mechanism 4 is perpendicular to the pipe 9 to be cut entering the cutting mechanism 4; when the bending shape of the pipe 9 to be cut entering the cutting mechanism 4 changes, causing the arc of the pipe 9 to be non-parallel to the arc of the arc guide 31, the angle adjustment mechanism 5 drives the swing support assembly 2 to swing around the base assembly 1, adjusts the bending shape of the arc guide 31, so that the arc of the arc guide 31 is parallel to the arc of the pipe 9 entering the cutting mechanism 4, so that the movement trajectory of the cutting mechanism 4 is parallel to the arc of the pipe 9, ensuring that the cutter 410 of the cutting mechanism 4 is always perpendicular to the pipe 9 to be cut entering the cutting mechanism 4; based on the state that the cutter 410 of the cutting mechanism 4 is always perpendicular to the pipe 9, the pipe 9 is cut after being limited by the cutting mechanism 4. Therefore, during the cutting of the bent pipe 9, the swing support assembly 2 can swing along the bending direction of the bent pipe 9, enabling the cutting mechanism 4 to synchronously follow the bent pipe 9. This matches the movement posture of the cutting mechanism 4 with the spatial shape of the bent pipe 9, thus providing stable support for the bent pipe 9 and completing the cutting. This adapts to the cutting requirements of bent pipes 9 with different bending shapes and ensures the consistency of the cut. After being cut by the cutting mechanism 4, the bent pipe 9 enters the slot frame 70 of the unloading assembly 7 from the discharge port 42 of the cutting mechanism 4. The telescopic unit 72 drives the slot frame 70 to swing downward around the second hinge axis, thereby unloading the bent pipe 9 from the slot frame 70 and completing the unloading action of the bent pipe 9.

[0058] When it is necessary to replace the bend 9 with different specifications and different arc shapes for cutting, only the arc guide 31 and arc transmission 30 need to be replaced to ensure that the arc guide 31 and arc transmission 30 have the same arc shape as the bend 9. No major structural adjustments are required, which shortens the changeover time and improves the versatility of the equipment.

[0059] In summary, the pipe bending 9 cutting device of the present invention has the ability to synchronously follow the curvature of the pipe to adapt to the cutting needs of pipe bending 9 of different specifications and different bending shapes.

[0060] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A pipe bending and cutting device, characterized in that, include Base assembly; A swing support assembly, one end of which is hinged to the base assembly; A transmission guide assembly is disposed on the swing support assembly. The transmission guide assembly includes an arc-shaped transmission component and an arc-shaped guide component. The arc-shaped transmission component is detachably disposed on the swing support assembly, and the arc-shaped guide component is detachably disposed on the arc-shaped transmission component. The arc shape of the arc-shaped transmission component is parallel to the arc shape of the arc-shaped guide component, and the arc shape of the arc-shaped guide component is the same as the arc shape of the bent pipe to be cut. A cutting mechanism is slidably disposed on the arc-shaped guide along the arc of the arc-shaped guide. The cutting mechanism is used to support, limit, and cut the bent pipe with the same arc as the arc of the arc-shaped guide. An angle adjustment mechanism is provided on the base assembly and drivenly connected to the other end of the swing support assembly. The angle adjustment mechanism is used to adjust the angle at which the swing support assembly swings around the axis of the hinge so that the arc of the arc guide can be parallel to the arc of the bent pipe entering the cutting mechanism. A drive unit is mounted on the cutting mechanism and drivenly connected to the arc-shaped transmission component. The drive unit is used to drive the cutting mechanism to move along the arc of the arc-shaped guide component as the bent pipe enters the cutting mechanism, so that the cutter of the cutting mechanism is always perpendicular to the bent pipe. The linear velocity of the cutting mechanism moving along the arc-shaped transmission component is the same as the linear velocity of the bent pipe entering the cutting mechanism.

2. A pipe bending and cutting apparatus according to claim 1, wherein The base assembly includes a first mounting base and a lifting mechanism. The lifting mechanism is fixed on the first mounting base and is driven to a swing support assembly for driving the swing support assembly to move vertically up and down.

3. The pipe bending and cutting device according to claim 2, characterized in that, The base assembly further includes a base and a centering adjustment mechanism. The base is located below the first mounting seat, and the centering adjustment mechanism is located between the first mounting seat and the base. The centering adjustment mechanism is used to drive the first mounting seat to move the angle adjustment mechanism, the swing support assembly, the transmission guide assembly and the cutting mechanism in the horizontal direction so that the bent pipe to be cut can enter the cutting mechanism.

4. The pipe bending and cutting device according to claim 3, characterized in that, The centering adjustment mechanism includes a guide rail, a pulley assembly, and a drive mechanism. The guide rail extends along a first horizontal direction and is fixed on the base. The horizontal tangent of the bent tube entering the cutting mechanism is a second horizontal direction that is perpendicular to the first horizontal direction. The pulley assembly is mounted on the first mounting base and slidably connected to the guide rail. The drive mechanism is mounted on the base and is used to drive the first mounting base to slide along the guide rail.

5. A pipe bending and cutting device according to claim 1, characterized in that, The cutting mechanism is equipped with a feeding component for receiving and outputting the pipes cut by the cutting mechanism.

6. A tube bending and cutting apparatus as defined in claim 5, wherein The feeding assembly includes a fixed base, a slot frame, and a telescopic unit. The fixed base is fixed to the cutting mechanism, and the slot frame is hinged to the fixed base. The axis of hinge between the slot frame and the fixed base is parallel to the axis of hinge between the swing support assembly and the base assembly. The slot frame is used to receive the pipe cut by the cutting mechanism. The telescopic unit is set on the cutting mechanism and is used to drive the slot frame to swing around the fixed base.

7. A pipe bending and cutting apparatus according to claim 1, wherein The drive unit includes a servo motor and a drive gear. The arc-shaped transmission component is configured as an arc-shaped rack. The servo motor is fixed on the cutting mechanism. The output shaft of the servo motor is driven by the drive gear. The drive gear meshes with the arc-shaped rack for transmission.

8. A pipe bending and cutting apparatus according to claim 1, wherein The cutting mechanism is equipped with a set of traveling wheels, which includes an upper traveling wheel and a lower traveling wheel. The upper traveling wheel abuts against the upper surface of the arc-shaped guide, and the lower traveling wheel abuts against the lower surface of the arc-shaped guide.

9. A pipe bending and cutting apparatus according to claim 1, wherein The arc-shaped guide is provided with blocking members at both ends to prevent the cutting mechanism from detaching from the arc-shaped guide.

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