Pipe bending and cutting apparatus

Abstract

The present application relates to the field of pipe processing, more particularly to a pipe cutting device, comprising a rack, a cutting mechanism arranged on the rack, a fixed workbench connected with the rack respectively, a first driving member connected with the rack and a rotating workbench connected with the output end of the first driving member, a first clamping member is arranged on the fixed workbench, a plurality of second clamping members are arranged on the rotating workbench, the second clamping members are used for clamping the pipe, the first clamping member is used for rotating connection with the pipe, the axis of the clamping center of the first clamping member is coaxial with the rotating axis of the rotating workbench, and the cutting mechanism can move along the direction parallel to the rotating axis of the rotating workbench. The cutting mechanism cuts the part of the pipe between the rotating workbench and the fixed workbench coaxial with the rotating axis of the fixed workbench, and with the movement of the cutting mechanism along the direction parallel to the rotating axis of the rotating workbench and the rotation of the pipe, the oblique cutting of the bent pipe can be realized.

Description

Technical Field

[0001] This invention relates to the field of pipe processing, and more specifically, to a pipe bending and cutting device. Background Technology

[0002] Pipe beveling, as the name suggests, refers to a processing technique where the end face of a pipe is cut at a specific angle instead of the traditional 90-degree perpendicular angle. The beveled cut formed by this technique is commonly referred to as a "bevel," and therefore, in the industrial field, beveling is more often called "open beveling." Compared to a simple straight cut, beveled pipes significantly increase the cross-sectional area and penetration depth of the weld during welding, resulting in a high-strength and reliable welded joint.

[0003] Existing technology discloses a laser cutting device for beveled pipes. The device includes a machine tool, a clamping mechanism, a three-axis motion slide, a swinging mechanism, and a laser cutting head. The clamping mechanism is mounted on the machine tool to clamp the pipe and drive it to rotate around its central axis. The three-axis motion slide is mounted on the machine tool, and its actuator moves in the X, Y, and Z axes. The swinging mechanism is mounted on the actuator of the three-axis motion slide, and its swinging end swings around the Y-axis. The laser cutting head is connected to the swinging end of the swinging mechanism to swing with it. By swinging the laser cutting head within a certain angle range, the laser cutting head can perform beveled cutting on the pipe at a certain angle, eliminating the need for subsequent beveling of the pipe ends. This achieves one-step cutting of beveled pipes, thus ensuring cutting efficiency and reducing the time and labor costs of pipe cutting.

[0004] However, this type of equipment is only suitable for processing straight pipes. When cutting some bent pipes, such as automobile exhaust pipes, the clamping mechanism clamps one end of the bent pipe, but because the pipe is bent, it cannot be ensured that the cutting position rotates coaxially with the clamping mechanism, and the cutting blade cannot process it. This device is not very suitable for cutting bent pipes at an angle. Summary of the Invention

[0005] The purpose of this invention is to overcome the problem that existing technologies are difficult to perform oblique cutting on bent pipes and have insufficient adaptability, and to provide a pipe bending cutting device that can perform oblique cutting on bent pipes, thereby improving the adaptability of the cutting device.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A pipe bending and cutting device is provided, including a frame, a cutting mechanism disposed on the frame, a fixed worktable connected to the frame, a first driving member connected to the frame, and a rotary worktable connected to the output end of the first driving member. A first clamping member is disposed on the fixed worktable, and a plurality of second clamping members are disposed on the rotary worktable. The second clamping members are used to clamp the pipe, and the first clamping members are used to rotatably connect with the pipe. The axis of the clamping center of the first clamping member is coaxial with the rotation axis of the rotary worktable, and the cutting mechanism can move in a direction parallel to the rotation axis of the rotary worktable.

[0007] This invention discloses a pipe bending and cutting device. When cutting a bent pipe, the operator mounts one end of the pipe to be processed onto a second clamping member on a rotary worktable and the other end onto a first clamping member on a fixed worktable. Then, a first driving member is activated, causing the entire rotary worktable to rotate along the axis of its output shaft. Because the second clamping member clamps the pipe, the entire pipe is rotated. Since the axis of the clamping center of the first clamping member is coaxial with the rotation axis of the rotary worktable (where the clamping center refers to the axis of the section of the pipe located within the clamping member), the pipe is rotatably connected to the first clamping member, and its rotation axis is coaxial with the rotation axis of the rotary worktable. Subsequently, the cutting mechanism cuts the portion of the pipe located between the rotary worktable and the fixed worktable, coaxial with the rotation axis of the rotary worktable. As the cutting mechanism moves in a direction parallel to the rotation axis of the rotary worktable and the pipe rotates, oblique cutting of the bent pipe can be achieved.

[0008] Further, the first clamping component includes a support block connected to the frame, a first rotating component and a second rotating component rotatably connected to the top of the support block, a second driving component connected to the support block, a first rocker arm rotatably connected to the support block, and a third rotating component rotatably connected to the first rocker arm. The second driving component drives the first rocker arm to rotate. The rotation axes of the first, second, and third rotating components are all parallel to the rotation axis of the rotary table. The first, second, and third rotating components form a clamping opening for holding the pipe. Before cutting, the operator places the pipe on the first and second rotating components. Once positioned, the second driving component drives the first rocker arm to rotate. The clamping opening is formed between the first, second, and third rotating components, and the pipe to be cut rolls with the first, second, and third rotating components, resulting in less friction during the rolling connection.

[0009] Furthermore, the support block includes a transverse support portion slidably connected to the frame, a right-angle support portion slidably connected to the transverse support portion, and a vertical support portion slidably connected to the right-angle support portion. The first rotating member and the second rotating member are both rotatably connected to the top of one side of the vertical support portion. The sliding directions of the transverse support portion, the right-angle support portion, and the vertical support portion are mutually perpendicular. The second driving member is connected to the vertical support portion. By sliding the transverse support portion, the right-angle support portion, and the vertical support portion, the position of the clamp can be adjusted in three directions, thereby adapting to pipe fittings with different bending shapes and improving applicability.

[0010] Furthermore, the support block also includes a locking component. The horizontal support portion has an elongated hole, through which the locking component passes and connects to the frame. The right-angle support portion also has an elongated hole, through which the locking component passes and connects to both the horizontal and vertical support portions. After adjusting the clamp position, the locking component can be used to lock and fix the clamp position.

[0011] Furthermore, a first support member is provided on the fixed worktable, and a second support member is provided on the rotating worktable. Both the first and second support members are used to support the ends of the pipe fittings. Providing support at the ends of the pipe fittings helps with positioning and improves the stability of the pipe fittings during placement.

[0012] Furthermore, the first support member includes a fourth drive member connected to the frame and a first support block disposed at the output end of the third drive member. The driving direction of the third drive member is along the axis at the port supported by the first support block. After the pipe is placed, the fourth drive member drives the first support block to retract, avoiding interference with the rotation of the pipe.

[0013] Furthermore, the second support member includes a connecting block connected to the rotary worktable, a second support block disposed on top of the connecting block, a fourth drive member connected to the second support block, a second rocker arm rotatably connected to the connecting block, and a clamping block connected to the second rocker arm. The fourth drive member is used to drive the second rocker arm to rotate. After the pipe is placed, the fourth drive member will drive the second rocker arm to rotate until the clamping block presses the pipe onto the first support block, resulting in a better fixing effect.

[0014] Furthermore, the cutting mechanism includes two first sliding shafts disposed on the top of the frame, a second sliding shaft connected to the output ends of the two first sliding shafts, a third sliding shaft connected to the output ends of the second sliding shafts, and a laser generator connected to the output end of the third sliding shaft. Using laser cutting eliminates the need for a deburring process, simplifying the process and improving production efficiency.

[0015] Furthermore, the movement direction of the third sliding axis is parallel to the rotation axis of the rotary table, the movement direction of the second sliding axis is perpendicular to the movement direction of the third sliding axis in the horizontal plane, and the movement direction of the laser generator is vertical. Through the adjustment of these three axes, the laser generator can move arbitrarily in space, completing cutting, drilling, and other operations at any position, thus expanding the processing range.

[0016] Furthermore, the frame is also equipped with an inclined material guiding mechanism located below the rotary worktable, and a storage bin is provided at the bottom of the material guiding mechanism. Processed waste residue enters the storage bin through the material guiding mechanism, preventing waste residue accumulation.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The cutting mechanism cuts a portion of the pipe located between the rotary worktable and the fixed worktable and coaxial with the rotation axis of the rotary worktable. As the cutting mechanism moves in a direction parallel to the rotation axis of the rotary worktable and the pipe rotates, it can achieve oblique cutting of the bent pipe. 2. The first rotating part, the second rotating part, and the third rotating part together form a clamp for clamping the pipe fitting, resulting in less friction between them and the pipe fitting; 3. The first and second support components provide support at the ends of the pipe fittings, aiding in positioning and improving the stability of the pipe fitting placement; 4. The cutting mechanism, through the adjustment of three axes, allows the laser generator to move freely in space, completing cutting, drilling, and other operations at any position, thus expanding the processing range. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a pipe bending and cutting device. Figure 2 for Figure 1 A magnified view of a portion of position A; Figure 3 This is a schematic diagram of the operation of a pipe bending and cutting device. Figure 4 A schematic diagram of the structure of the first clamping component and the first supporting component; Figure 5 This is a schematic diagram of the second support component.

[0019] In the attached diagram: 100, frame; 200, cutting mechanism; 210, first sliding axis; 220, second sliding axis; 230, third sliding axis; 300, fixed worktable; 310, first clamping component; 311, second driving component; 312, first rocker arm; 313, third rotating component; 314, horizontal support; 315, right-angle support; 316, vertical support; 317, first rotating component; 318, second rotating component; 320, first support component; 321, third driving component; 322, first support block; 400, first driving component; 500, rotary worktable; 510, second clamping component; 520, second support component; 521, connecting block; 522, second support block; 523, fourth driving component; 524, second rocker arm; 525, clamping block; 600, material guiding mechanism; 700, storage bin. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0021] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," and "fitting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In the description of this specification, references to terms such as "embodiment" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0024] Example 1 This embodiment is a first embodiment of a pipe bending and cutting device, such as... Figure 1 and Figure 2 As shown, it includes a frame 100, a cutting mechanism 200 disposed on the frame 100, a fixed worktable 300 connected to the frame 100, a first driving member 400 connected to the frame 100, and a rotary worktable 500 connected to the output end of the first driving member 400. A first clamping member 310 is disposed on the fixed worktable 300.

[0025] like Figure 4 As shown, the first clamping member 310 includes several locking members, a transverse support portion 314 slidably connected to the frame 100 along the X-axis direction, a right-angle support portion 315 slidably connected to the transverse support portion 314 along the Y-axis direction, a vertical support portion 316 slidably connected to the right-angle support portion 315 along the Z-axis direction, a first rotating member 317 and a second rotating member 318 rotatably connected to the top of one side of the vertical support portion 316, a second driving member 311 connected to the vertical support portion 316, and a member rotatably connected to the vertical support portion 316. The first rocker arm 312 and the third rotating member 313 rotatably connected to the first rocker arm 312, the output end of the second driving member 311 rotatably connected to the first rocker arm 312, the linear motion is converted into the rotational motion of the first rocker arm 312 by lever principle, the rotation axes of the first rotating member 317, the second rotating member 318 and the third rotating member 313 are all parallel to the rotation axis of the rotary worktable 500, and the first rotating member 317, the second rotating member 318 and the third rotating member 313 form a clamp for clamping the pipe.

[0026] The transverse support 314 has an elongated hole along the X-axis. The locking member passes through the elongated hole on the transverse support 314 and is threadedly connected to the threaded hole on the frame 100. The bottom surface of the right-angle support 315 has an elongated hole along the Y-axis, and the side surface of the right-angle support 315 has an elongated hole along the Z-axis. The locking member passes through the elongated hole of the right-angle support 315 and is threadedly connected to the threaded hole on the transverse support 314 and the threaded hole on the vertical support 316, respectively.

[0027] In this embodiment, the first driving component 400 is a rotary motor, the second driving component 311 is a cylinder, the first rotating component 317, the second rotating component 318 and the third rotating component 313 are all bearings of the same specification, the first rotating component 317 and the second rotating component 318 are set at the same horizontal height, the lines connecting the axes of the first rotating component 317, the second rotating component 318 and the third rotating component 313 form an equilateral triangle, and the locking component is a bolt.

[0028] A second clamping member 510 is provided on the rotary worktable 500. The second clamping member 510 is used to clamp the pipe fitting. The first clamping member 310 is used to rotatably connect with the pipe fitting. The axis of the clamping center of the first clamping member 310 is coaxial with the rotation axis of the rotary worktable 500. Here, the clamping center refers to the axis of the section of the pipe fitting located on the first clamping member 310 when the first clamping member 310 is in the clamping state. The cutting mechanism 200 can move in a direction parallel to the rotation axis of the rotary worktable 500.

[0029] When the first driving component 400 does not rotate, the laser generator can be moved above the workpiece to achieve drilling.

[0030] The working principle of this embodiment is as follows: The present invention provides a pipe bending and cutting device, the working process of which is as follows when cutting a pipe bend: Figure 3 As shown, the operator installs one section of the pipe fitting to be processed at the second clamping member 510 on the rotary worktable 500 and the other section at the first clamping member 310 on the fixed worktable 300. Then, the first driving member 400 is activated, which drives the entire rotary worktable 500 to rotate. Since the first clamping member 310 clamps the pipe fitting, the entire pipe fitting is rotated. The pipe fitting is rotatably connected to the second clamping member 510, and the axis of rotation is coaxial with the axis of rotation of the rotary worktable 500. Then, the cutting mechanism 200 cuts the part of the pipe fitting located between the rotary worktable 500 and the fixed worktable 300 and coaxial with the axis of rotation of the rotary worktable 500. As the cutting mechanism 200 moves in a direction parallel to the axis of rotation of the rotary worktable 500 and the pipe fitting rotates, the bend can be cut at an angle.

[0031] The beneficial effects of this invention are as follows: In addition to drilling and straight cutting of pipe fittings, this device can also perform oblique cuts on a portion of the pipe fittings located between the rotary worktable 500 and the fixed worktable 300 and coaxial with the rotation axis of the rotary worktable 500 through the cutting mechanism 200. The arrangement of the first rotating part 317, the second rotating part 318 and the third rotating part 313 reduces the friction between the device and the pipe fittings. The position of the clamp can be adjusted by sliding the horizontal support part 314, the right-angle support part 315 and the vertical support part 316, and locked by the locking part, thereby adapting to pipe fittings with different bending shapes and having better applicability.

[0032] Previously, cutting pipes at an angle with a required radius of 15 (R15) and a high burr height (less than 0.3mm) on the cut required four steps: saw blade cutting → hydraulic corner cutting → deburring → hydraulic drilling. This was costly, inefficient, and produced poor quality. Using this new equipment, however, only one step is needed to complete the angle cutting and drilling, eliminating the need for deburring and integrating multiple devices into one unit.

[0033] Furthermore, the bevel angle (and chamfer angle) of the pipe fittings can be changed according to actual needs. The calculation principle and formula are as follows: Let the radius of the circular tube be R, the angular velocity of the circular tube be ω (rad / s), and the speed of the laser generator along the X-axis be v (m / s).

[0034] The bevel angle θ is defined as the angle of intersection between the cut bevel surface and the surface of the circular pipe (i.e., the helix angle), then: tanθ = Rω / v. In actual processing, the parameters v and ω can be set according to the helix angle formula based on different circular pipe radii R, thereby achieving the required bevel angle θ. By setting different cutting trajectories for circular and linear motion, the movement path can be reduced, and the cutting efficiency can be improved by increasing the speed of v\ω.

[0035] Example 2 This embodiment is a second embodiment of a pipe bending and cutting device. This embodiment is similar to the first embodiment, except that, as shown in the following... Figure 2 and Figure 4As shown, a first support member 320 is provided on the fixed worktable 300, and a second support member 520 is provided on the rotary worktable 500. Both the first support member 320 and the second support member 520 are used to support the end of the pipe fitting. The first support member 320 includes a third drive member 321 connected to the frame 100 and a first support block 322 provided at the output end of the third drive member 321. The driving direction of the third drive member 321 is along the axis at the port supported by the first support block 322. The second support member 520 includes a connecting block 521 connected to the rotary worktable 500, a second support block 522 provided at the top of the connecting block 521, a fourth drive member 523 connected to the second support block 522, a second rocker arm 524 rotatably connected to the connecting block 521, and a clamping block 525 connected to the second rocker arm 524. The fourth drive member 523 is used to drive the second rocker arm 524 to rotate.

[0036] In this embodiment, both the first support block 322 and the second support block 522 are U-shaped, and both the third drive member 321 and the fourth drive member 523 are cylinders.

[0037] The working principle of this embodiment is as follows: After the pipe fitting is placed, the fourth drive component 523 drives the second rocker arm 524 to rotate to the clamping block 525 to press the pipe fitting onto the second support block 522, resulting in better fixation. The third drive component 321 drives the first support block 322 to retract, avoiding interference with the rotation of the pipe fitting. The first support component 320 and the second support component 520 can provide support at the end of the pipe fitting, helping with positioning and improving the stability of the pipe fitting placement.

[0038] The remaining working principles of this embodiment are the same as those of Embodiment 2.

[0039] Example 3 This embodiment is a third embodiment of a pipe bending and cutting device. This embodiment is similar to embodiment two, except that, as shown in the figure... Figure 1 As shown, the cutting mechanism 200 includes two first sliding shafts 210 disposed on the top of the frame 100, a second sliding shaft 220 connected to the output ends of the two first sliding shafts 210, a third sliding shaft 230 connected to the output end of the second sliding shaft 220, and a laser generator connected to the output end of the third sliding shaft 230. The moving direction of the third sliding shaft 230 is parallel to the rotation axis of the rotary table 500, i.e., the X-axis direction. The moving direction of the second sliding shaft 220 is perpendicular to the moving direction of the third sliding shaft 230 in the horizontal plane, i.e., the Y-axis direction. The moving direction of the laser generator is vertical, i.e., the Z-axis direction. The laser generator is existing technology and does not need to be described in detail here.

[0040] like Figure 3As shown, the rotary table 500 is also equipped with a drilling station, which consists of a second clamping member 510 and two second support members 520, with the two second support members 520 located on both sides of the second clamping member 510.

[0041] The working principle of this embodiment is as follows: With the adjustment of the three axes, the laser generator can move freely in space to complete cutting, drilling and other operations at any position, thus expanding the processing range. Using laser cutting eliminates the need for deburring, simplifying the process and improving production efficiency.

[0042] The remaining working principles of this embodiment are the same as those of Embodiment 2.

[0043] Example 4 This embodiment is a fourth embodiment of a pipe bending and cutting device. This embodiment is similar to embodiment three, except that, as shown in the figure... Figure 1 As shown, the frame 100 is also provided with an inclined material guiding mechanism 600, which is located below the rotary worktable 500 and the fixed worktable 300. A storage box 700 is provided at the bottom of the material guiding mechanism 600, and a waste trough for waste materials to fall into is provided on the rotary worktable 500.

[0044] The remaining working principles of this embodiment are the same as those of Embodiment 3.

[0045] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make various variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A pipe bending and cutting device, comprising a frame (100) and a cutting mechanism (200) disposed on the frame (100), characterized in that, It also includes a fixed worktable (300) connected to the frame (100), a first drive unit (400) connected to the frame (100), and a rotary worktable (500) connected to the output end of the first drive unit (400). The fixed worktable (300) is provided with a first clamping member (310), and the rotary worktable (500) is provided with a plurality of second clamping members (510). The second clamping members (510) are used to clamp the pipe fittings, and the first clamping members (310) are used to rotatably connect with the pipe fittings. The axis of the clamping center of the first clamping member (310) is coaxial with the rotation axis of the rotary worktable (500). The cutting mechanism (200) can move in a direction parallel to the rotation axis of the rotary worktable (500). The first clamping member (310) includes a support block connected to the frame (100), a first rotating member (317) and a second rotating member (318) rotatably connected to the top of the support block, a second driving member (311) connected to the support block, a first rocker arm (312) rotatably connected to the support block, and a third rotating member (313) rotatably connected to the first rocker arm (312). The second driving member (311) is used to drive the first rocker arm (312) to rotate. The rotation axes of the first rotating member (317), the second rotating member (318), and the third rotating member (313) are all parallel to the rotation axis of the rotary worktable (500). The first rotating member (317), the second rotating member (318), and the third rotating member (313) form a clamping opening for clamping the pipe. The support block includes a transverse support part (314) slidably connected to the frame (100), a right-angle support part (315) slidably connected to the transverse support part (314), and a vertical support part (316) slidably connected to the right-angle support part (315). The first rotating member (317) and the second rotating member (318) are both rotatably connected to the top of one side of the vertical support part (316). The sliding direction of the transverse support part (314), the sliding direction of the right-angle support part (315), and the sliding direction of the vertical support part (316) are perpendicular to each other. The second driving member (311) is connected to the vertical support part (316). The fixed worktable (300) is provided with a first support member (320), and the rotary worktable (500) is provided with a second support member (520). Both the first support member (320) and the second support member are used to support the end of the pipe fitting. The first support member (320) includes a third drive member (321) connected to the frame (100) and a first support block (322) disposed at the output end of the third drive member (321). The driving direction of the third drive member (321) is along the axis at the port supported by the first support block (322).

2. The pipe bending and cutting device according to claim 1, characterized in that, The support block also includes a locking member. The horizontal support part (314) has an elongated hole, and the locking member passes through the elongated hole on the horizontal support part (314) and is connected to the frame (100). The right-angle support part (315) has an elongated hole, and the locking member passes through the elongated hole on the right-angle support part (315) and is connected to the horizontal support part (314) and the vertical support part (316) respectively.

3. The pipe bending and cutting device according to claim 1, characterized in that... The second support member (520) includes a connecting block (521) connected to the rotary table (500), a second support block (522) disposed on the top of the connecting block (521), a fourth drive member (523) connected to the second support block (522), a second rocker arm (524) rotatably connected to the connecting block (521), and a clamping block (525) connected to the second rocker arm (524). The fourth drive member (523) is used to drive the second rocker arm (524) to rotate.

4. A pipe bending and cutting device according to any one of claims 1-3, characterized in that, The cutting mechanism (200) includes two first sliding shafts (210) disposed on the top of the frame (100), a second sliding shaft (220) connected to the output ends of the two first sliding shafts (210), a third sliding shaft (230) connected to the output end of the second sliding shaft (220), and a laser generator connected to the output end of the third sliding shaft (230).

5. A pipe bending and cutting device according to claim 4, characterized in that, The movement direction of the third sliding axis (230) is parallel to the rotation axis of the rotary table (500), the movement direction of the second sliding axis (220) is perpendicular to the movement direction of the third sliding axis (230) in the horizontal plane, and the movement direction of the laser generator is vertical.

6. A pipe bending and cutting device according to any one of claims 1-3, characterized in that, The frame (100) is also provided with an inclined material guiding mechanism (600), which is located below the rotary worktable (500) and the fixed worktable (300). A storage box (700) is provided at the bottom of the material guiding mechanism (600).

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