Pipe bending machine for aluminum pipe machining

Abstract

The utility model relates to a pipe bending machine for processing an aluminum pipe, which comprises an operating platform, a track is arranged on the operating platform, a mounting plate is arranged on the track, a positioning and rotating mechanism is arranged on the mounting plate, and the positioning and rotating mechanism can clamp and rotate the aluminum pipe and can move vertically and horizontally; the pipe bending mechanism is arranged at one end of the operation table and comprises a positioning chuck, one part of the positioning chuck is fixed on the operation table, an air cylinder is installed on the other side of the positioning chuck and connected to the operation table, a pipe bending mold is in butt joint with one end of the positioning chuck, and a mold chuck is in butt joint with the pipe bending mold; one part of the die chuck is fixed on the pipe bending die, the lower end of the pipe bending die is fixedly provided with a rotating plate, the rotating plate is fixedly connected with an air cylinder, the air cylinder is fixedly connected with the other part of the die chuck, and the lower end of the pipe bending die is provided with a driving motor. And diversified bending process requirements can be met.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum tube processing equipment, specifically to an aluminum tube bending machine. Background Technology

[0002] Aluminum tubes are widely used in many industrial fields due to their excellent properties such as light weight, corrosion resistance, and good thermal and electrical conductivity. They are commonly used as structural components in door and window frames, air conditioning ducts, and aerospace equipment. These applications often require bending the aluminum tubes into specific angles and shapes to meet structural requirements.

[0003] Patent CN221817079U discloses an aluminum tube bending machine. This utility model patent involves placing an aluminum tube inside a cylinder, and then the operator moves four round rods on the surface of the cylinder inward so that the surface of the arc-shaped abutment plate at the bottom of the round rods clamps the aluminum tube. At the same time, the surface of the round rods has multiple insertion holes. When the operator determines the position of the round rods, the pull plate is moved to drive the insertion rods through the insertion holes inside the fixing block and insert them into the insertion holes on the surface of the round rods to fix and limit the round rods.

[0004] The existing publicly available aluminum tube bending machine has obvious limitations. The clamping device is fixed on the operating table. When bending an aluminum tube multiple times or after rotating it, the aluminum tube needs to be loosened and its position adjusted before being fixed again. This increases labor costs and reduces production efficiency. Utility Model Content

[0005] To address the aforementioned issues, this invention provides an aluminum tube bending machine that can quickly position aluminum tubes and rotate them to complete bending at different angles.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: an aluminum tube processing and bending machine, including an operating table, a track on the operating table, an mounting plate on the track, and a positioning and rotating mechanism on the mounting plate. The positioning and rotating mechanism can clamp and rotate the aluminum tube, and can move vertically and horizontally.

[0007] One end of the operating table is provided with a pipe bending mechanism, which includes a positioning chuck. The positioning chuck is divided into left and right parts. One part of the positioning chuck is fixed on the operating table, and a cylinder is installed on the other side of the positioning chuck. The cylinder is connected to the operating table. One end of the positioning chuck is connected to a pipe bending mold, and a mold chuck is connected to the pipe bending mold.

[0008] The mold chuck is divided into left and right parts. One part of the mold chuck is fixed on the bending mold. A rotating plate is fixed to the lower end of the bending mold. A cylinder is fixedly connected to the rotating plate. The cylinder is fixedly connected to the other part of the mold chuck. A drive motor is installed at the lower end of the bending mold.

[0009] Furthermore, the positioning and rotating mechanism includes a gear, a rotating shaft is provided at the center of the gear, the rotating shaft is fixedly connected to the mounting plate, a matching rack meshes on the gear, a gearbox is fitted on the outside of the gear and the rack, and a push rod is fixedly connected to one end of the rack.

[0010] Furthermore, a sleeve is installed on the shaft of the gear, and a rotating cylinder is fitted inside the sleeve. Several cylindrical bosses are provided at the end of the rotating cylinder, and cards are installed on the cylindrical bosses. One end of the card is provided with a card groove, and the other end is provided with a cylindrical card block. The cards form a closed ring structure through the connection between the card groove and the cylindrical card block.

[0011] Furthermore, an annular insert plate is provided on the bottom surface of the rotating cylinder, and a slot is provided on the top surface of the rotating shaft, with the annular insert plate located inside the slot.

[0012] Furthermore, a slider is installed on the track, which can slide horizontally on the track. A locking bolt is provided on the side of the slider, which can lock the slider onto the track.

[0013] Furthermore, a placement plate is fixedly installed on the slider, a slide rail is provided on the placement plate, a mounting plate is provided on the slide rail, and a handwheel is provided at the upper end of the slide rail.

[0014] Furthermore, the handwheel includes a turntable and a drive shaft. The drive shaft is provided with an external thread, and the mounting plate is provided with a threaded hole that matches the rotation axis of the handwheel. When the handwheel rotates, the mounting plate will move vertically along the rotation axis of the handwheel.

[0015] Furthermore, the circumferential surface of the bending die is provided with a groove that matches the outer surface of the aluminum tube.

[0016] Furthermore, a locking pin is provided at the center of the disk on the upper end face of the bending mold, and a retaining seat is provided at the center of the disk on the lower end face of the bending mold. The locking pin of the upper bending mold can be inserted into the retaining seat of the lower bending mold, and the two bending molds can rotate coaxially.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the device of this utility model fixes one end of the aluminum tube through the positioning and rotating mechanism, and can rotate. After positioning, the aluminum tube can be moved horizontally and vertically through the track and slide rail to adjust the bending position. After the bending position is adjusted, the operating cylinder passes through the aluminum tube and fixes the other end of the aluminum tube. Then, the drive motor is operated to rotate the bending mold and bend the aluminum tube.

[0018] This device uses a positioning and rotating mechanism to position and rotate one end of the aluminum tube. It also uses a track and slide rail to move the aluminum tube in the horizontal and vertical directions, making it convenient for operators to adjust the position of the aluminum tube to adapt to different bending requirements. Compared with some existing tube bending devices that can only perform simple fixing and lack flexible position adjustment, it improves the flexibility and adaptability of operation and can meet more diverse bending process needs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0020] Figure 2 This is a schematic diagram of the device structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the gear and rack mating structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the positioning and rotating mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the pipe bending process of the device of this utility model;

[0024] Figure 6 This is a schematic diagram of the stacked bending mold of the device of this utility model;

[0025] Among them, 11-operating table, 12-rail, 13-slider, 14-locking bolt, 15-placement plate, 16-slide rail, 17-mounting plate, 18-handwheel, 21-gear, 22-rack, 23-gearbox, 24-push rod, 25-rotating shaft, 31-sleeve, 32-rotating cylinder, 33-card, 34-cylindrical boss, 35-fixing bolt, 36-cylindrical block, 41-positioning chuck, 42-cylinder, 43-bending mold, 44-mold chuck, 45-rotating plate, 46-drive motor, 47-pin, 48-card seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] See Figure 1-5 As shown, the present invention provides an aluminum tube processing bending machine, including an operating table 11, a track 12 on the operating table 11, a placement plate 15 on the track 12, a positioning and rotating mechanism connected to the placement plate 15 for clamping and rotating the aluminum tube, and a bending mechanism at one end of the operating table 11, which can bend straight tube materials into a bent tube of a specific shape.

[0029] The operating table 11 is a rectangular flat plate structure. Four support legs are installed at the four corners of the lower end of the operating table 11. A linear track 12 is provided on the operating table 11, extending along the length of the operating table 11. A slider 13 that matches the track 12 is installed on the track 12. The slider 13 can slide horizontally on the track 12. A locking bolt 14 is provided on the side of the slider 13, which can lock the slider 13 onto the track 12. A placement plate 15 is fixedly installed on the slider 13. A slide rail 16 is provided on the placement plate 15, and the slide rail 16 is vertically fixed to the placement plate 15. A mounting plate 17 is provided on the slide rail 16, which can move vertically on the slide rail 16. A handwheel 18 is provided at the upper end of the slide rail 16. The handwheel 18 includes a turntable and a drive shaft. The drive shaft extends along the direction of the slide rail 16. An external thread is provided on the drive shaft of the handwheel 18. A threaded hole matching the drive shaft of the handwheel 18 is provided on the mounting plate 17. When the handwheel 18 is rotated, the mounting plate 17 moves vertically along the drive shaft. A positioning and rotating mechanism is provided on the mounting plate 17.

[0030] The positioning and rotating mechanism includes a gear 21, with a rotating shaft 25 at its center. The rotating shaft 25 is connected to the mounting plate 17, and the gear 21 can rotate synchronously with the rotating shaft 25. A matching rack 22 meshes with the gear 21. The rack 22 is elongated and horizontal. A gearbox 23 is fitted around the gear 21 and the rack 22. The gearbox 23 is fixedly connected to the mounting plate 17. A push rod 24 is fixedly connected to one end of the rack 22. The push rod 24 passes through one side of the gearbox 23. When a horizontal thrust is applied to the push rod 24, the push rod 24 drives the rack 22 to move horizontally. Since the rack 22 meshes with the gear 21, the gear 21 can rotate on the rotating shaft 25.

[0031] A sleeve 31 is mounted on the shaft 25 of gear 21. A rotating cylinder 32 is fitted inside the sleeve 31. An annular insert plate is provided on the bottom surface of the rotating cylinder 32, and a slot is provided on the top surface of the shaft 25. The annular insert plate is located in the slot, and the rotating cylinder 32 can rotate on the shaft 25. An aluminum tube can pass through the center of the rotating cylinder 32. Several cylindrical bosses 34 are provided at the end of the rotating cylinder 32. The cylindrical bosses 34 are evenly distributed along the circumference on the end face of the rotating cylinder 32. The cylindrical bosses 34 are protruding cylindrical structures. Cards 33 are mounted on the cylindrical bosses 34. The cards 33 are arc-shaped plate structures. One end of the card 33 is provided with a slot, and the other end is provided with a cylindrical locking block 36. In the assembled state, the cards 33 are connected by the engagement of the slot and the cylindrical locking block 36. That is, the cylindrical locking block 36 of each card 33 engages with the slot of the next adjacent card 33. This process is repeated to form a closed structure. Because card 33 has an arc-shaped structure, the resulting closed structure is a ring structure. When the rotating cylinder 32 is rotated, the cylindrical locking block 36 of the previous card 33 will generate a force, pushing the adjacent card 33 to move inward, thereby achieving a locking effect.

[0032] A fixing bolt 35 is screwed onto the sleeve 31. The fixing bolt 35 passes through the middle of the sleeve 31 and its end contacts the outer wall of the rotating cylinder 32. The fixing bolt 35 can be screwed on to fix the rotating cylinder 32. The operator can insert the aluminum tube into the center of the rotating cylinder 32 and manually rotate the rotating cylinder 32 to lock the aluminum tube with the clip 33. Then, tighten the fixing bolt 35 to fix the rotating cylinder 32 on the positioning and rotating mechanism, thus positioning the aluminum tube. When it is necessary to loosen the aluminum tube, loosen the fixing bolt 35 and rotate the rotating cylinder 32 in the opposite direction to release the positioning of the aluminum tube.

[0033] A tube bending mechanism is provided at one end of the operating table 11. The tube bending mechanism includes a positioning chuck 41 for fixing the aluminum tube. The positioning chuck 41 is detachable and consists of two parts, left and right. One part of the positioning chuck 41 is fixedly connected to the operating table 11 via a bracket, while the other part is equipped with a cylinder 42, which is fixedly connected to the operating table 11. The cylinder 42 can push one part of the positioning chuck 41 towards the other part to clamp the aluminum tube. The inner side of the positioning chuck 41 has a groove that matches the outer surface of the aluminum tube, allowing it to fit tightly against the tube. A tube bending mold 43 is provided at one end of the positioning chuck 41. The tube bending mold 43 has a disc structure, and its circumferential surface has a groove that matches the outer surface of the aluminum tube. The tube bending mold 43 can rotate. A mold chuck 44 is mated to the tube bending mold 43. The mold chuck 44 consists of two parts, left and right, with one part fixed. A rotating plate 45 is fixedly connected to the lower end of the bending mold 43. The rotating plate 45 can rotate with the bending mold 43. The rotating plate 45 is composed of a circular plate structure and a rectangular plate structure spliced ​​together (or a rectangular plate extends outward from the outer edge of the rotating plate 45). A cylinder 42 is fixedly connected to the rectangular plate of the rotating plate 45. The top of the cylinder 42 is fixedly connected to another part of the mold chuck 44. In the initial state, the mold chuck 44 and the positioning chuck 41 are parallel, and the central axis of the mold chuck 44 and the positioning chuck 41 coincides. When the bending mold 43 rotates, the mold chuck 43 will rotate with the rotating plate 45. At this time, the angle between the mold chuck 44 and the positioning chuck 41 will change, and they will no longer remain parallel. Furthermore, due to the rotation of the mold chuck 44, its position no longer coincides with the central axis of the positioning chuck 41. A drive motor 46 is installed at the lower end of the bending mold 43, which can drive the bending mold 43 to rotate and perform bending operations on the aluminum tube.

[0034] It should be noted that during the aluminum tube bending process, the outer diameter of the aluminum tube may change due to bending, and the outer diameter of the bent part may become larger, causing the aluminum tube to move. Therefore, the cylinder 42 drives the positioning chuck 41 to firmly clamp the aluminum tube to prevent it from loosening during the bending process, while the cylinder 42 drives the mold chuck 44 to limit the aluminum tube, so that the aluminum tube can have a certain amount of room to move within the mold chuck 44.

[0035] In addition, a locking pin 47 is provided at the center of the disc on the upper end face of the bending die 43, and a locking seat 48 is provided at the center of the disc on the lower end face of the bending die 43, so that the locking pin 47 can be inserted into the locking seat 48. This allows bending dies of different diameters to be stacked on the bending die, or bending dies of different structures to be added, and these bending dies can rotate coaxially, which facilitates the drive motor to rotate. When different bending effects are required, simply insert the locking seat of the upper bending die into the locking pin of the lower bending die. After bending is completed, the locking pin can be pulled out of the locking seat. This facilitates the replacement of bending dies. The operator can turn the handwheel 18 to move the positioning and rotating mechanism vertically and align the central axis of the aluminum tube with the central axis of the die chuck 44, and then clamp the bent tube.

[0036] Working principle: First, install one end of the aluminum tube on the central axis of the rotating drum 32 and rotate the rotating drum 32. Position the aluminum tube using the clip 33 and tighten the fixing bolt 35. Then, vertically adjust the position of the aluminum tube so that the central axis of the aluminum tube coincides with the central axis of the groove of the bending mechanism. Then, move the placement plate 15 horizontally to pass the aluminum tube through the positioning clamp 41 and adjust the bending position. At this time, the aluminum tube is located at the central axis of the positioning clamp 41 and the bending mold. After adjusting the bending position, operate the cylinder 42 to approach the aluminum tube, drive the positioning clamp 41 to firmly clamp the aluminum tube, and drive the mold clamp 44 to limit the aluminum tube. Then, the drive motor 46 is operated to rotate the bending mold and bend the aluminum tube. When the aluminum tube needs to be bent at a certain angle, the drive system stops working, and the positioning chuck 41 and the mold chuck 44 release their grip and limit on the aluminum tube. The operator needs to push the push rod 24 to make the gear 21 drive the sleeve to rotate and slide the placement plate 15 forward to adjust the bending position before clamping the bending tube.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. An aluminum tube bending machine, comprising an operating table, characterized in that: The operating table is equipped with a pipe bending mechanism, which includes a positioning chuck and a pipe bending mold. The pipe bending mold is equipped with a mold chuck, and the aluminum pipe to be bent passes through the positioning chuck and is connected to the mold chuck. The mold chuck is divided into two parts, left and right. One part is fixed on the bending mold, and the other part is connected to a cylinder. A rotating plate is fixed at the lower end of the bending mold, and the cylinder is set on the rotating plate. When the bending mold rotates, it drives the rotating plate to move, thereby bending the aluminum tube. The operating platform is equipped with a track, and a mounting plate is mounted on the track. A positioning and rotating mechanism is mounted on the mounting plate. The positioning and rotating mechanism can clamp the aluminum tube and rotate and move the bent aluminum tube.

2. The aluminum tube bending machine according to claim 1, characterized in that: The positioning and rotating mechanism includes a gear, a rotating shaft at the center of the gear, the rotating shaft being fixedly connected to a mounting plate, a matching rack meshing on the gear, a gearbox fitted around the gear and rack, and a push rod fixedly connected to one end of the rack.

3. The aluminum tube bending machine according to claim 2, characterized in that: A sleeve is installed on the shaft of the gear, and a rotating cylinder is fitted inside the sleeve. Several cylindrical bosses are provided at the end of the rotating cylinder. Cards are installed on the cylindrical bosses. One end of the card is provided with a card groove, and the other end is provided with a cylindrical card block. The cards form a closed ring structure through the connection between the card groove and the cylindrical card block.

4. The aluminum tube bending machine according to claim 3, characterized in that: An annular insert plate is provided on the bottom surface of the rotating cylinder, and a slot is provided on the top surface of the rotating shaft, with the annular insert plate located inside the slot.

5. The aluminum tube bending machine according to claim 1, characterized in that: A slider is installed on the track, which can slide horizontally on the track. A locking bolt is provided on the side of the slider, which can lock the slider on the track.

6. The aluminum tube bending machine according to claim 5, characterized in that: A placement plate is fixedly installed on the slider, a slide rail is provided on the placement plate, an mounting plate is provided on the slide rail, and a handwheel is provided at the upper end of the slide rail.

7. The aluminum tube bending machine according to claim 6, characterized in that: The handwheel includes a turntable and a drive shaft. The drive shaft has an external thread, and the mounting plate has a threaded hole that matches the rotation axis of the handwheel. When the handwheel rotates, the mounting plate moves vertically along the rotation axis of the handwheel.

8. The aluminum tube bending machine according to claim 1, characterized in that: The circumferential surface of the bending mold is provided with a groove that matches the outer surface of the aluminum tube.

9. The aluminum tube bending machine according to claim 1, characterized in that: The upper end face of the bending die has a locking pin at the center of the disc, and the lower end face of the bending die has a locking seat at the center of the disc. The upper bending die locking pin can be inserted into the lower bending die locking seat, and the two bending dies can rotate coaxially.

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