bending machine

Abstract

The present application relates to the technical field of pipe bending, and discloses a pipe bending machine. The pipe bending machine comprises a workbench, a feeding mechanism and a bending mechanism arranged on the workbench. The feeding mechanism is used for conveying a pipe to the bending mechanism so that the bending mechanism bends the pipe. The feeding mechanism comprises a feeding frame, which is slidably arranged on the workbench along an X-axis, and the pipe is placed on the feeding frame along the X-axis. The feeding mechanism further comprises a first driving member, a gear and a track belt. The fixed end of the first driving member is connected to the feeding frame. The gear is arranged on the output shaft of the first driving member, and the output shaft is rotatably connected to the feeding frame. The track belt is arranged on the workbench along the X-axis, and the gear is in meshing connection with the track belt. The second driving member is arranged on the workbench, and the output end of the second driving member is used for supporting the end of the pipe and following the pipe. The pipe bending machine can accurately feed the pipe, so as to ensure the accuracy of the pipe bending section size and the stability of the pipe feeding.

Description

Technical Field

[0001] This invention relates to the field of pipe bending technology, and more particularly to pipe bending machines. Background Technology

[0002] In machining, pipe bending machines are used to bend pipes to form pre-defined bent structures. During the bending process, the pipe head is directly pulled to the bending mechanism of the machine, and then the bending mechanism rotates and bends the pipe while simultaneously pulling it for feeding. This results in inaccurate control of the pipe's feeding dimensions, making it impossible to guarantee the accuracy of the bent section's size. Furthermore, this feeding method easily causes the pipe to wobble, compromising the stability of the feeding process.

[0003] Therefore, there is an urgent need for a pipe bending machine that can solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a pipe bending machine that can accurately feed pipes to ensure the accuracy of the bending section dimensions and the stability of the pipe feeding.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A pipe bending machine includes a worktable, a feeding mechanism disposed on the worktable, and a bending mechanism. The feeding mechanism is used to transport pipes to the bending mechanism so that the bending mechanism bends the pipes. The feeding mechanism includes:

[0007] A feeding rack is slidably mounted on the worktable along the X-axis, and the pipe fitting is placed on the feeding rack along the X-axis;

[0008] The first drive unit, gear, and track are provided. The fixed end of the first drive unit is connected to the feeding frame. The gear is disposed on the output shaft of the first drive unit. The output shaft is rotatably connected to the feeding frame. The track is disposed on the worktable along the X-axis. The gear is meshed with the track.

[0009] The second driving component has its fixed end disposed on the worktable, and its output end is used to support the end of the pipe and move with the pipe.

[0010] Furthermore, a support frame is also provided on the worktable, the second driving member is disposed on the support frame, and the second driving member can move relative to the support frame along the Z-axis; the feeding mechanism further includes:

[0011] A first abutting drive member, the fixed end of the first abutting drive member is disposed on the support frame, and when the second drive member does not move relative to the support frame along the Z-axis, the output end of the first abutting drive member can abut against the fixed end of the second drive member.

[0012] Furthermore, the feeding rack is also provided with a guide cylinder and a fixing block. The pipe is disposed inside the guide cylinder. One end of the fixing block is fixedly connected to the guide cylinder, and the other end of the fixing block is slidably connected to the feeding rack. The fixing block can move relative to the feeding rack along the Z-axis.

[0013] Furthermore, the feeding mechanism also includes:

[0014] The second abutting drive member has its fixed end connected to the feeding frame. When the fixed block does not move relative to the feeding frame along the Z-axis, the output end of the second abutting drive member can abut against the top surface of the fixed block.

[0015] Furthermore, a contour tube is provided on one end of the fixed block near the bending mechanism. The contour tube is connected to the fixed block. Along the X-axis and in the direction near the bending mechanism, the diameter of the contour tube gradually decreases. After the tube passes through the guide cylinder, it is located inside the contour tube. The axis of the contour tube coincides with the axis of the guide cylinder. An opening and closing member is provided on one end of the contour tube near the bending mechanism. The opening and closing member can loosen or lock the tube.

[0016] Furthermore, the pipe bending machine also includes a cutting assembly for cutting the pipe fitting, the cutting assembly being located between the guide cylinder and the first driving member, the cutting assembly comprising:

[0017] A cutting drive component, wherein the fixed end of the cutting drive component is disposed on the guide cylinder;

[0018] The cutting roller and the cutting blade are provided. The driving end of the cutting drive is connected to the cutting roller. The cutting roller is rotatably connected to one side of the guide cylinder. The cutting blade is fixedly installed inside the cutting roller. The cutting blade can rotate to cut the pipe.

[0019] Furthermore, the bending mechanism includes:

[0020] A mounting plate is provided on the workbench;

[0021] A first mold and a second mold are disposed opposite to each other on the mounting plate, and the pipe fitting can be located in any arc groove on the first mold, and the second mold can be moved relative to the first mold along the Y-axis to abut against the pipe fitting;

[0022] The third driving component and the main shaft are provided. The fixed end of the third driving component is disposed on the mounting plate, and the driving end of the third driving component is drivenly connected to the main shaft. The main shaft extends along the Z-axis. The first mold and the second mold are respectively fixedly connected to the main shaft so that the main shaft can simultaneously drive the first mold and the second mold to rotate around the Z-axis.

[0023] Furthermore, the bending mechanism also includes:

[0024] A third mold is disposed on the mounting plate and located on one side of the second mold. The third mold is movable along the Y-axis to press against the pipe fitting.

[0025] Furthermore, the pipe bending machine also includes:

[0026] A horizontal moving mechanism is disposed between the worktable and the mounting plate, and the horizontal moving mechanism is used to drive the bending mechanism to move along the Y-axis.

[0027] Furthermore, the horizontal movement mechanism includes:

[0028] A horizontal drive component, wherein the fixed end of the horizontal drive component is disposed on the worktable;

[0029] The guide block and guide rail are provided on one of the worktable and the mounting plate, and the guide block is provided on the other. The guide rail extends along the Y-axis, and the driving end of the horizontal drive member is drivenly connected to the guide block. The guide block can slide along the guide rail.

[0030] The beneficial effects of this invention are as follows:

[0031] By setting up a feeding mechanism and a bending mechanism on the worktable, the feeding mechanism transports the pipe fittings to the bending mechanism, allowing the bending mechanism to bend the pipe fittings, thus achieving bending. Simultaneously, the pipe fittings are placed along the X-axis on the feeding frame of the feeding mechanism. The first drive component of the feeding mechanism drives the gear to rotate, causing the gear to rotate on the track. This allows the gear to move the feeding frame and the pipe fittings on the feeding frame along the X-axis, thereby transporting the pipe fittings to the bending mechanism, achieving automatic feeding of the pipe fittings. In this way, the rotation angle of the drive gear of the first drive component can be controlled. The rotation distance of the gears on the track is controlled by the degree of rotation, thereby controlling the specific movement distance of the feeder and the pipe on the X-axis, thus achieving precise feeding of the pipe and ensuring the accuracy of the bending section size of the pipe. In addition, the output end of the second drive unit supports the end of the pipe and moves with the pipe, so that the output end of the second drive unit can provide support for the end of the pipe during the entire feeding process, thereby avoiding the problem of the end of the pipe shaking and ensuring the stability of the pipe feeding. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the pipe bending machine provided by the present invention from one perspective;

[0033] Figure 2 This is a structural schematic diagram of the pipe bending machine provided by the present invention from another perspective;

[0034] Figure 3 yes Figure 1 A magnified view of a portion of point A in the middle;

[0035] Figure 4 yes Figure 2 A magnified view of a portion of point B in the middle;

[0036] Figure 5 This is a schematic diagram of the bending mechanism provided by the present invention.

[0037] Figure label:

[0038] 1-Worktable; 11-Support frame; 111-First slide rail; 12-Base plate; 121-First slider;

[0039] 2-Feeding mechanism; 21-Feeding rack; 211-Guide cylinder; 2111-Bracket; 212-Fixing block; 2121-Second slider; 2122-Second slide rail; 22-First driving component; 23-Gear; 24-Crawler track; 25-Square block; 26-Second driving component; 261-Connecting block; 27-First abutting driving component; 28-Second abutting driving component; 29-Contouring tube; 291-Opening and closing component; 292-Feeding guide block; 293-Feeding guide rail;

[0040] 3-Bending mechanism; 31-Mounting plate; 32-First mold; 321-Arc groove; 33-Second mold; 34-Third mold; 35-Third drive component; 36-Main shaft;

[0041] 4-Pipe fittings;

[0042] 51-Cutting drive component; 52-Synchronous belt; 53-Cutting roller;

[0043] 61-Horizontal drive component; 62-Guide rail. Detailed Implementation

[0044] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the structure or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0048] This embodiment proposes a pipe bending machine for automatic feeding and bending of pipe fittings. It ensures precise feeding of the pipe fittings, thereby guaranteeing the dimensional accuracy of the bent section and the stability of the feeding process, ultimately resulting in high-quality pipe fittings. In this embodiment, the pipe fitting can specifically be an aluminum tube.

[0049] Specifically, such as Figure 1 and Figure 2 As shown, the pipe bending machine includes a worktable 1, a feeding mechanism 2 and a bending mechanism 3 set on the worktable 1. The feeding mechanism 2 is used to automatically and accurately transport the pipe 4 to the bending mechanism 3 so that the bending mechanism 3 can automatically bend the pipe, thereby realizing the bending function of the pipe 4.

[0050] Specifically, such as Figure 1 and Figure 2 As shown, the feeding mechanism 2 includes a feeding frame 21, a first driving member 22, a gear 23, and a track 24. The feeding frame 21 is slidably mounted on the worktable 1 along the X-axis, and the pipe 4 is placed on the feeding frame 21 along the X-axis, meaning the pipe 4 can move synchronously with the movement of the feeding frame 21. The fixed end of the first driving member 22 is connected to the feeding frame 21, the gear 23 is fixedly mounted on the output shaft of the first driving member 22, and the output shaft is rotatably connected to the feeding frame 21. The track 24 is mounted on the worktable 1 along the X-axis, and the gear 23 and the track 24 are meshed together. The output shaft of the first driving member 22 is rotatably connected to the feeding frame 21 via a square block 25, meaning the square block 25 is fixedly connected to the feeding frame 21, and the output shaft of the first driving member 22 is rotatably mounted within the square block 25 via a bearing. This allows the output shaft of the first driving member 22 to rotate while simultaneously driving the square block 25 and the feeding frame 21 to move along the X-axis. In this embodiment, the first driving member 22 is specifically a servo motor.

[0051] By placing the pipe fitting 4 along the X-axis on the feeding rack 21, the first driving member 22 drives the gear 23 to rotate, causing the gear 23 to rotate on the track 24. This allows the gear 23 to move the feeding rack 21 and the pipe fitting 4 on it along the X-axis, thus conveying the pipe fitting 4 to the bending mechanism 3 for automatic feeding. In this way, the rotation angle of the gear 23 driven by the first driving member 22 can be controlled to control the rotation distance of the gear 23 on the track 24, thereby controlling the specific movement distance of the feeding rack 21 and the pipe fitting 4 along the X-axis. This ensures precise feeding of the pipe fitting 4 and guarantees the accuracy of the bent section dimensions. In this embodiment, the feeding mechanism 2 enables millimeter-level feeding of the pipe fitting 4.

[0052] Furthermore, by engaging the gear 23 with the track 24, the feeding frame 21 and the pipe fitting 4 are fed. This ensures a stable connection between the gear 23 and the track 24, resulting in smoother rotation of the gear 23 and guaranteeing the reliability of the pipe fitting 4 feeding. A feeding guide rail 293 is provided on one of the feeding frame 21 and the worktable 1, while a feeding guide block 292 is provided on the other. The feeding guide rail 293 extends along the X-axis, and the feeding guide block 292 can slide on the feeding guide rail 293, thus providing guidance for the movement of the feeding frame 21 along the X-axis and ensuring the guidance and stability of the feeding frame 21's movement.

[0053] Furthermore, such as Figures 1 to 3 As shown, the feeding mechanism 2 also includes a second driving member 26. The fixed end of the second driving member 26 is disposed on the worktable 1, and the output end of the second driving member 26 is used to support the end of the pipe 4 and can move with the pipe 4. Since the output end of the second driving member 26 can move with the pipe 4, the output end of the second driving member 26 can always abut against the end of the pipe 4 during the entire feeding process, providing support to the end of the pipe 4. This avoids the problem of the end of the pipe 4 shaking and ensures the stability of feeding the pipe 4. In this embodiment, the second driving member 26 can specifically be a linear cylinder.

[0054] Specifically, such as Figures 1 to 3 As shown, a support frame 11 is also provided on the workbench 1. The second drive component 26 is integrally mounted on the support frame 11, and the second drive component 26 can move relative to the support frame 11 along the Z-axis. When the straightness of the pipe 4 is poor, that is, when the pipe 4 is bent and not placed in a straight line on the feeding rack 21, the second drive component 26 is moved along the Z-axis to a suitable position and then the end of the pipe 4 is supported. This allows the second drive component 26 to adjust the straightness of the pipe 4 so that the pipe 4 can be placed on the feeding rack 21 with better straightness, which is beneficial for the bending mechanism 3 to bend the pipe 4 smoothly. Specifically, the straightness of the pipe 4 refers to the degree to which both ends of the pipe 4 are on the same horizontal straight line.

[0055] Specifically, such as Figure 3 As shown, a base plate 12 is provided on the support frame 11. The base plate 12 is slidably disposed on the support frame 11 along the Z-axis. The fixed end of the second driving member 26 is disposed on the base plate 12. The output end of the second driving member 26 can pass through the base plate 12 and the support frame 11 and be fixedly connected to the connecting block 261. The end of the pipe 4 is fixedly disposed on the connecting block 261 by bolts, thereby realizing the abutment support function of the output end of the second driving member 26 on the pipe 4.

[0056] Furthermore, such as Figure 3As shown, a first slider 121 is provided on one of the support frame 11 and the substrate 12, and a first slide rail 111 is provided on the other. The first slide rail 111 extends along the Z-axis, and the first slider 121 can slide on the first slide rail 111 to drive the substrate 12 and the second driving member 26 to reciprocate along the Z-axis. The substrate 12 is connected to the support frame 11 by a first screw. When the substrate 12 needs to slide relative to the support frame 11 along the Z-axis, the first screw is removed to allow the substrate 12 to slide. When the substrate 12 and the second driving member 26 slide to a suitable position, the first screw is passed through the substrate 12 and threaded into any of the first threaded holes on the support frame 11, thereby restricting the sliding of the substrate 12 and ensuring the stability of the substrate 12 and the second driving member 26 on the support frame 11. This avoids the problem of the substrate 12 and the second driving member 26 slipping due to vibrations generated during the feeding and bending of the tube 4, thus ensuring the stability of feeding and bending the tube 4. In this embodiment, a first slide rail 111 is provided on the support frame 11, and a first slider 121 is provided on the substrate 12.

[0057] Specifically, such as Figure 1 and Figure 2 As shown, the feeding mechanism 2 also includes a first abutting drive member 27. The fixed end of the first abutting drive member 27 is disposed on the support frame 11. When the second drive member 26 does not move relative to the support frame 11 along the Z-axis, that is, when the substrate 12 and the second drive member 26 have moved to a suitable position and the first screw passes through the substrate 12 and is threaded into the first threaded hole on the support frame 11, the output end of the first abutting drive member 27 is then pressed against the fixed end of the second drive member 26. This ensures that the output end of the first abutting drive member 27 directly abuts against the top surface of the substrate 12, thereby better restricting the sliding of the substrate 12 and further ensuring the stable setting of the substrate 12 and the second drive member 26 on the support frame 11. In this embodiment, the first abutting drive member 27 can specifically be a linear cylinder.

[0058] Furthermore, such as Figure 1 and Figure 2 As shown, a guide cylinder 211 and a fixing block 212 are also provided on the feeding rack 21. The pipe 4 is placed inside the guide cylinder 211 so that the guide cylinder 211 can guide the pipe 4 to better ensure the straightness of the pipe 4. One end of the fixing block 212 is fixedly connected to the guide cylinder 211, and the other end of the fixing block 212 is slidably connected to the feeding rack 21. The fixing block 212 can move relative to the feeding rack 21 along the Z-axis.

[0059] By moving the fixed block 212 to a suitable position along the Z-axis, the fixed block 212 can drive the guide cylinder 211 to move along the Z-axis, so that the guide cylinder 211 can move the pipe 4 inside it along the Z-axis, thereby adjusting the straightness of the pipe 4 so that the pipe 4 can be set on the feeding rack 21 with better straightness, which further facilitates the bending mechanism 3 to bend the pipe 4 smoothly.

[0060] Specifically, such as Figure 2 and Figure 4 As shown, a second slider 2121 is provided on one of the fixed block 212 and the feeding rack 21, and a second slide rail 2122 is provided on the other. The second slide rail 2122 extends along the Z-axis, and the second slider 2121 can slide on the second slide rail 2122 to drive the fixed block 212 and the guide cylinder 211 to reciprocate along the Z-axis. Furthermore, the fixed block 212 is connected to the feeding rack 21 by a second screw. When the fixed block 212 needs to slide relative to the feeding rack 21 along the Z-axis, the second screw is removed to facilitate the fixing. The fixed block 212 slides; when the fixed block 212 and the guide cylinder 211 slide to a suitable position, the second screw is passed through the fixed block 212 and threaded into any of the second threaded holes on the feeding rack 21, thereby restricting the sliding of the fixed block 212 and ensuring the stability of the fixed block 212 and the guide cylinder 211 on the feeding rack 21. This avoids the problem of the fixed block 212 and the guide cylinder 211 slipping due to vibrations generated during the feeding and bending of the pipe 4, and further ensures the stability of feeding and bending the pipe 4. In this embodiment, a second slide rail 2122 is provided on the feeding rack 21, and a second slider 2121 is provided on the fixed block 212.

[0061] Furthermore, such as Figure 1 and Figure 2 As shown, the feeding mechanism 2 also includes a second abutment drive member 28. The fixed end of the second abutment drive member 28 is connected to the feeding frame 21. When the fixed block 212 does not move relative to the feeding frame 21 along the Z-axis, that is, when the fixed block 212 and the guide cylinder 211 move to a suitable position and the second screw is threaded into the second threaded hole, the output end of the second abutment drive member 28 is then pressed against the top surface of the fixed block 212. This better restricts the sliding of the fixed block 212 and further ensures the stability of the fixed block 212 and the guide cylinder 211 on the feeding frame 21. In this embodiment, the second abutment drive member 28 can specifically be a linear cylinder.

[0062] Specifically, such as Figure 1 and Figure 2As shown, a contour tube 29 is provided on the fixed block 212 near the bending mechanism 3. The contour tube 29 is connected to the fixed block 212. The axis of the contour tube 29, the axis of the output end of the second drive member 26, and the axis of the guide cylinder 211 coincide. In the direction along the X-axis and near the bending mechanism 3, the diameter of the contour tube 29 gradually decreases. After the tube 4 passes through the guide cylinder 211, it is located inside the contour tube 29 so that the contour tube 29 can adjust the straightness of the tube 4 and ensure that the straightness of the tube 4 is better.

[0063] Among them, such as Figure 1 As shown, an opening / closing component 291 is provided at one end of the conforming tube 29 near the bending mechanism 3. The opening / closing component 291 can loosen or lock the tube 4, so that it can automatically loosen the tube 4 according to specific feeding requirements and actual working conditions, allowing the tube 4 to move freely relative to the feeding frame 21; and it can automatically lock the tube 4 according to specific feeding requirements and actual working conditions, so that the tube 4 can move synchronously with the movement of the feeding frame 21 for feeding. In this embodiment, the opening / closing component 291 can adopt the common opening / closing structure in existing tube bending machines, and the specific opening / closing principle of the opening / closing component 291 will not be described in detail here.

[0064] Furthermore, such as Figure 1 As shown, the pipe bending machine also includes a cutting assembly for cutting the pipe fitting 4, which can cut a single pipe fitting 4 into multiple pipe segments of preset length according to processing requirements, and then feed and bend the pipe segments; the cutting assembly is set between the guide cylinder 211 and the first driving component 22, and the cutting assembly includes a cutting driving component 51, a cutting roller 53 and a cutting blade; wherein, the fixed end of the cutting driving component 51 is set on the guide cylinder 211, the driving end of the cutting driving component 51 is drivenly connected to the cutting roller 53, the cutting roller 53 is rotatably connected to one side of the guide cylinder 211, and a cutting blade is fixedly set inside the cutting roller 53, which can rotate to cut the pipe fitting 4.

[0065] Among them, such as Figure 1 As shown, a bracket 2111 is fixedly mounted on the guide cylinder 211. The fixed end of the cutting drive 51 is mounted on the bracket 2111. The output end of the cutting drive 51 drives the cutting roller 53 to rotate via the synchronous belt 52, thereby causing the cutting blade inside the cutting roller 53 to rotate, and thus causing the cutting blade to cut the pipe 4 during the rotation. In this embodiment, the cutting drive 51 can specifically be a servo motor.

[0066] Specifically, such as Figure 1 , Figure 2 and Figure 5As shown, the bending mechanism 3 includes a mounting plate 31, a first mold 32, a second mold 33, a third drive component 35, and a spindle 36. The mounting plate 31 is disposed on one side of the worktable 1. The first mold 32 and the second mold 33 are disposed opposite each other on the mounting plate 31, and the pipe 4 can be located within any arcuate groove 321 on the first mold 32. The second mold 33 can move relative to the first mold 32 along the Y-axis to abut the pipe 4. The fixed end of the third drive component 35 is disposed on the mounting plate 31, and the driving end of the third drive component 35 is drivenly connected to the spindle 36. The spindle 36 extends along the Z-axis, and the first mold 32 and the second mold 33 are respectively fixedly connected to the spindle 36 so that the spindle 36 can simultaneously drive the first mold 32 and the second mold 33 to rotate around the Z-axis. In this embodiment, the third drive component 35 is specifically a servo motor.

[0067] Specifically, after the pipe fitting 4 is fed into any of the arc-shaped grooves 321 of the first mold 32, the second mold 33 moves relative to the first mold 32 along the Y-axis until it abuts against the pipe fitting 4, i.e., the pipe fitting 4 is pressed between the first mold 32 and the second mold 33; then the third drive component 35 is activated, so that the third drive component 35 simultaneously drives the first mold 32 and the second mold 33 to rotate around the Z-axis, thereby completing the bending of the pipe fitting 4. In this embodiment, the bending of the pipe fitting 4 is a common bending process in existing pipe bending machines, and the specific bending principle will not be described in detail here.

[0068] It is worth noting that the structure of the second mold 33 matches that of the first mold 32, thus enabling the pipe fitting 4 to be pressed together and rotated and bent through the first mold 32 and the second mold 33; for example Figure 5 As shown, the first mold 32 is provided with multiple arc-shaped grooves 321 of different structures. When the pipe 4 is located in the arc-shaped grooves 321 of different structures, the bending radius of the pipe 4 can be different. Therefore, the pipe 4 can be bent into multiple different bending segments by setting multiple arc-shaped grooves 321 of different structures. At the same time, the bending radius of the pipe 4 can be controlled by controlling the rotation angle of the first mold 32 and the second mold 33 around the Z-axis by the third driving component 35, so as to meet the multiple different bending requirements of the pipe 4.

[0069] Before bending the pipe 4, the base plate 12 and the fixing block 212 can be moved simultaneously along the Z-axis, thereby moving the entire pipe 4 along the Z-axis. This allows the pipe 4 to be moved from one arc-shaped groove 321 on the first mold 32 to another arc-shaped groove 321. Furthermore, the second mold 33 can move along the Z-axis, i.e., it can be driven by a cylinder to move along the Z-axis, allowing the second mold 33 to avoid the pipe 4, facilitating the direct removal of the bent pipe 4. In this embodiment, the movement of the second mold 33 along the Z and Y axes can be achieved using a commonly used moving module structure, which will not be described in detail here.

[0070] Furthermore, such as Figure 5 As shown, the bending mechanism 3 also includes a third mold 34, which is mounted on the mounting plate 31 and located on one side of the second mold 33. The third mold 34 can move along the Y-axis to press against the pipe 4, so that while the first mold 32 and the second mold 33 are rotating and bending the pipe 4, the third mold 34 can always press against the pipe 4 to prevent the pipe 4 from shifting, thus ensuring a better bending effect. The third mold 34 can also move along the Z-axis, that is, it can be driven by a cylinder to move along the Z-axis, so that the third mold 34 can avoid the pipe 4, making it easier to directly remove the bent pipe 4. In this embodiment, the movement of the third mold 34 along the Z-axis and Y-axis can adopt a common moving module structure in the current technology, which will not be described in detail here.

[0071] Specifically, the pipe bending machine also includes a horizontal moving mechanism, which is set between the worktable 1 and the mounting plate 31. The horizontal moving mechanism is used to drive the entire bending mechanism 3 to move along the Y-axis, so as to adjust the distance between the first mold 32 and the pipe 4 at the feeding mechanism 2, thereby bending the pipe 4 into more bending segments with different bending radii, thus better meeting the various bending requirements of the pipe 4. The entire bending mechanism 3 can move along the Y-axis during the bending process or before bending. The specific time and distance of the bending mechanism 3 moving along the Y-axis need to be determined according to the actual working conditions and bending requirements.

[0072] Furthermore, such as Figure 5As shown, the horizontal moving mechanism includes a horizontal drive member 61, a guide block, and a guide rail 62. The fixed end of the horizontal drive member 61 is mounted on the worktable 1. A guide block is mounted on one of the worktable 1 and the mounting plate 31, and a guide rail 62 is mounted on the other. The guide rail 62 extends along the Y-axis, and the driving end of the horizontal drive member 61 is drivenly connected to the guide block. The guide block can slide along the guide rail 62, allowing the horizontal drive member 61 to drive the mounting plate 31 to move along the Y-axis, thereby enabling the entire bending mechanism 3 to move relative to the worktable 1 along the Y-axis. In this embodiment, the horizontal drive member 61 can specifically be a linear cylinder.

[0073] In this embodiment, the pipe bending machine ensures good straightness of the pipe 4 by enabling the second driving member 26 and the fixed block 212 to move along the Z-axis and by setting the contour tube 29 to shape the pipe 4. Furthermore, by having the output end of the second driving member 26 abut against the end of the pipe 4 and move with the pipe 4, by setting the first screw and the first abutting driving member 27 to ensure the stability of the second driving member 26, and by setting the second screw and the second abutting driving member 28 to ensure the stability of the fixed block 212, the reliability of the pipe 4 feeding and bending process is ensured. At the same time, by setting arc grooves 321 with different structures on the first mold 32, controlling the rotation angle of the main shaft 36 around the Z-axis by the third driving member 35, and moving the entire bending mechanism 3 along the Y-axis, various bending requirements of the pipe 4 can be met, making the pipe bending machine widely applicable.

[0074] The specific working process of the pipe bending machine in this embodiment is as follows:

[0075] First, the pipe fitting 4 is placed along the X-axis on the inside of the guide cylinder 211, the fixing block 212, and the contour tube 29 on the feeding rack 21. Then, according to the straightness of the pipe fitting 4, the second driving component 26 and the fixing block 212 are moved to appropriate positions along the Z-axis, and the fixed end of the second driving component 26 and the fixing block 212 are fixed. Then, the end of the pipe fitting 4 is fixedly connected to the connecting block 261 at the output end of the second driving component 26 with bolts, so that the pipe fitting 4 can be shaped to give the pipe fitting 4 better straightness.

[0076] Then, the first drive member 22 drives the gear 23 to rotate according to the specific length of the pipe 4 to be fed, so that the gear 23 rotates on the track 24, thereby enabling the gear 23 to drive the feeding rack 21 and the pipe 4 on the feeding rack 21 to move along the X-axis through the square block 25, and then transport the pipe 4 to the first mold 32 of the bending mechanism 3 to realize the automatic feeding of the pipe 4; at this time, the opening and closing member 291 can lock the pipe 4 so that the pipe 4 moves along the X-axis together with the feeding rack 21.

[0077] Then, the horizontal drive 61 drives the mounting plate 31 to move along the Y-axis, thereby enabling the entire bending mechanism 3 to move relative to the worktable 1 to a suitable position along the Y-axis; then the second mold 33 moves closer to the first mold 32 along the Y-axis, so that the second mold 33 can press against the pipe 4 on the first mold 32; at the same time, the third mold 34 moves closer to and presses against the pipe 4 along the Y-axis.

[0078] Finally, the third drive component 35 is activated to drive the main shaft 36 to rotate around the Z-axis. This drives the first mold 32 and the second mold 33 to rotate synchronously around the Z-axis, thereby enabling the bending of the pipe 4 during the rotation process and completing the entire bending process of the pipe 4.

[0079] The cutting drive 51 can be operated according to the material feeding requirements and specific working conditions to drive the synchronous belt 52 to rotate, thereby driving the cutting roller 53 to rotate, and then causing the cutting blade inside the cutting roller 53 to rotate, so that the cutting blade cuts the pipe 4 during the rotation, so that the pipe 4 forms a pipe segment of a preset length.

[0080] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A pipe bending machine, comprising a worktable (1), a feeding mechanism (2) disposed on the worktable (1), and a bending mechanism (3), wherein the feeding mechanism (2) is used to convey a pipe fitting (4) to the bending mechanism (3) so that the bending mechanism (3) bends the pipe fitting (4), characterized in that, The feeding mechanism (2) includes: The feeding rack (21) is slidably mounted on the worktable (1) along the X-axis, and the pipe fitting (4) is placed on the feeding rack (21) along the X-axis; The first drive unit (22), gear (23) and track (24) are connected to the feed rack (21) at the fixed end of the first drive unit (22). The gear (23) is located on the output shaft of the first drive unit (22) and the output shaft is rotatably connected to the feed rack (21). The track (24) is located on the worktable (1) along the X-axis. The gear (23) meshes with the track (24). The second driving member (26) has a fixed end located on the workbench (1) and an output end of the second driving member (26) used to support the end of the pipe (4) and move with the pipe (4). The feeding rack (21) is also provided with a guide cylinder (211) and a fixing block (212). The pipe (4) is disposed inside the guide cylinder (211). One end of the fixing block (212) is fixedly connected to the guide cylinder (211), and the other end of the fixing block (212) is slidably connected to the feeding rack (21). The fixing block (212) can move relative to the feeding rack (21) along the Z-axis. A contour tube (29) is provided at one end of the fixed block (212) near the bending mechanism (3). The contour tube (29) is connected to the fixed block (212). Along the X-axis and in the direction near the bending mechanism (3), the diameter of the contour tube (29) gradually decreases. The tube (4) passes through the guide cylinder (211) and is located inside the contour tube (29). The axis of the contour tube (29) coincides with the axis of the guide cylinder (211). An opening and closing member (291) is provided at one end of the contour tube (29) near the bending mechanism (3). The opening and closing member (291) can loosen or lock the tube (4).

2. The pipe bending machine as described in claim 1, characterized in that, The workbench (1) is also provided with a support frame (11), the second driving member (26) is provided on the support frame (11), and the second driving member (26) can move relative to the support frame (11) along the Z-axis; the feeding mechanism (2) further includes: The first abutting drive member (27) has its fixed end disposed on the support frame (11). When the second drive member (26) does not move relative to the support frame (11) along the Z-axis, the output end of the first abutting drive member (27) can abut against the fixed end of the second drive member (26).

3. The pipe bending machine as described in claim 1, characterized in that, The feeding mechanism (2) further includes: The second abutment drive member (28) has its fixed end connected to the feeder (21). When the fixed block (212) does not move relative to the feeder (21) along the Z-axis, the output end of the second abutment drive member (28) can abut against the top surface of the fixed block (212).

4. The pipe bending machine as described in claim 3, characterized in that, The pipe bending machine also includes a cutting assembly for cutting the pipe fitting (4), the cutting assembly being located between the guide cylinder (211) and the first drive member (22), the cutting assembly comprising: Cutting drive (51), the fixed end of the cutting drive (51) is disposed on the guide cylinder (211). The cutting roller (53) and the cutting blade are provided. The driving end of the cutting drive (51) is driven to the cutting roller (53). The cutting roller (53) is rotatably connected to one side of the guide cylinder (211). The cutting blade is fixedly installed inside the cutting roller (53). The cutting blade can rotate to cut the pipe (4).

5. The pipe bending machine as described in any one of claims 1-3, characterized in that, The bending mechanism (3) includes: Mounting plate (31) is disposed on the workbench (1); The first mold (32) and the second mold (33) are disposed opposite to each other on the mounting plate (31), and the pipe (4) can be located in any arc groove (321) on the first mold (32), and the second mold (33) can move relative to the first mold (32) along the Y axis to abut against the pipe (4). The third drive component (35) and the main shaft (36) are provided. The fixed end of the third drive component (35) is disposed on the mounting plate (31). The drive end of the third drive component (35) is drivenly connected to the main shaft (36). The main shaft (36) extends along the Z-axis. The first mold (32) and the second mold (33) are respectively fixedly connected to the main shaft (36) so that the main shaft (36) can simultaneously drive the first mold (32) and the second mold (33) to rotate around the Z-axis.

6. The pipe bending machine as described in claim 5, characterized in that, The bending mechanism (3) further includes: The third mold (34) is disposed on the mounting plate (31) and located on one side of the second mold (33). The third mold (34) is movable along the Y-axis to press against the pipe fitting (4).

7. The pipe bending machine as described in claim 5, characterized in that, The pipe bending machine also includes: A horizontal moving mechanism is provided between the worktable (1) and the mounting plate (31), and the horizontal moving mechanism is used to drive the bending mechanism (3) to move along the Y-axis.

8. The pipe bending machine as described in claim 7, characterized in that, The horizontal movement mechanism includes: A horizontal drive (61) is provided at its fixed end on the worktable (1). The guide block and guide rail (62) are provided on one of the worktable (1) and the mounting plate (31) and the guide rail (62) are provided on the other. The guide rail (62) extends along the Y-axis and the driving end of the horizontal drive member (61) is drivenly connected to the guide block. The guide block can slide along the guide rail (62).

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