Stretch bending machine with automatic aluminum alloy profile feeding mechanism

Abstract

The stretch bending machine with the automatic aluminum alloy profile feeding mechanism comprises a rack, limiting side plates are symmetrically arranged on one side of the upper end of the rack, movable sliding grooves are formed in the opposite sides of the two limiting side plates, ball screws are arranged in the middles of the interiors of the two movable sliding grooves, the outer ends of the two ball screws are connected with a driving assembly, and the outer ends of the two ball screws are connected with the driving assembly. The sides, located between the two moving sliding grooves, of the two ball screws are connected through a pushing frame, and a feeding device is arranged at the upper ends of the limiting side plates. According to the stretch bending machine with the automatic aluminum alloy profile feeding mechanism, aluminum alloy profiles are placed on the rear side of the interior of a storage box, then an electric telescopic rod drives a push plate to move, and the aluminum alloy profiles placed on the rear side of a conveying channel are pushed and fed to the position under a lower pressing plate; the aluminum alloy sections are conveyed to the position between the two limiting side plates through the discharging opening by the positioning feeding assembly, the driving assembly drives the pushing frame to move, the aluminum alloy sections are automatically fed, manual placement is not needed, and therefore the feeding automation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to the processing of aluminum alloy profiles, and particularly to a stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles. Background Technique

[0002] Aluminum alloy profiles are alloy materials mainly composed of aluminum, which are made through processes such as extrusion and stretching. They have the advantages of light weight, high strength, corrosion resistance, and easy processing, and are widely used in various fields. And the stretch bending process, as one of the key technologies for the processing of aluminum alloy profiles, plays a crucial role in improving the accuracy and quality of aluminum alloy profiles. When performing stretch bending processing on aluminum alloy profiles, a stretch bending machine is required. The working principle of the stretch bending machine is to apply force to make the metal plate produce plastic deformation, so as to achieve bending processing.

[0003] After retrieval, it is found that a typical stretch bending machine in the prior art is, for example, the one with the publication number CN205701961U, a swing arm type stretch bending machine, which includes a fixed plane, a swing arm, a stretching oil cylinder, a chuck, a blank, a stretch bending die, a bending arm, a bending oil cylinder, a tie rod fixing ring, and a tensile machine. The middle part of the swing arm type stretch bending machine is the fixed plane. Two swing arms are hinged on both sides of the fixed plane. The stretching oil cylinders are respectively installed at the ends of the swing arms. The front end of the piston of the stretching oil cylinder is equipped with the chuck, and the chuck is used to clamp the blank therebetween. The stretch bending dies are symmetrically installed on the axis of the fixed plane. The bending arm is perpendicular to the lower part of the fixed plane. The bending oil cylinder is provided at the front end of the bending arm. The tie rod fixing ring is provided in the middle part of the bending arm. The tie rod fixing ring is connected to the swing arm through a tie rod, and the tensile machine is installed at the end of the tie rod.

[0004] To sum up, when the existing stretch bending machine is in use, it is necessary to manually load the aluminum alloy profiles. Since the profiles are generally heavy, the labor intensity of the operators is high, and it is easy to cause danger during handling, so it is necessary to be careful. As a result, the feeding speed is slow, the production cost is increased, and the production efficiency is reduced. In view of the above problems, it is necessary to improve the existing equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles, so as to solve the problems in the above-mentioned background technique that when the existing stretch bending machine is in use, it is necessary to manually load the aluminum alloy profiles. Since the profiles are generally heavy, the labor intensity of the operators is high, and it is easy to cause danger during handling, so it is necessary to be careful. As a result, the feeding speed is slow, the production cost is increased, and the production efficiency is reduced.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles includes a frame,

[0007] On one side of the upper end of the frame, limiting side plates are symmetrically arranged, and moving sliding grooves are formed inside the opposite sides of the two limiting side plates. At the same time, a ball screw is arranged in the middle of the two moving sliding grooves. The outer ends of the two ball screws are connected to a driving assembly, and the two ball screws are connected by a pushing frame on one side between the two moving sliding grooves. A feeding device is arranged at the upper end of the limiting side plate. The feeding device includes a storage box. At the same time, the position of the material discharging port formed at the front side of the lower end of the storage box corresponds to the position of the cavity between the two limiting side plates. A partition plate is arranged inside the storage box, and a conveying channel is arranged between the lower end of the partition plate and the bottom of the storage box. At the same time, a pushing plate is arranged at the rear side of the conveying channel. The pushing plate is of an L-shaped structure, and the rear side of the pushing plate is connected to the rear inner wall of the storage box through equally spaced electric telescopic rods. At the same time, the rear side of the pushing plate penetrates through a corresponding positioning hole formed in the storage box and extends to the outside of the storage box. A positioning feeding assembly is arranged in front of the partition plate inside the storage box, and the positioning feeding assembly is located above the material discharging port. On the other side of the upper end of the frame, a bending mechanism is arranged. The bending mechanism includes a support frame, a positioning assembly and a bending assembly, which are used for positioning the two ends of the aluminum alloy profile and bending the middle of the aluminum alloy profile.

[0008] Preferably, the driving assembly includes a driving motor, a driving gear, a transmission gear, a positioning shaft and a linkage gear. The output end of the driving motor is connected with the driving gear. At the same time, the driving gear is meshed and connected with the transmission gears on both sides. The two transmission gears are connected to the inside of one side of the frame through the positioning shaft. At the same time, the upper ends of the two transmission gears are respectively meshed and connected with the linkage gears. At the same time, the two linkage gears are respectively connected to one end of the corresponding ball screw.

[0009] Preferably, short rods are symmetrically arranged at the lower front side of the storage box above the two limiting side plates. The bottoms of the two short rods arranged longitudinally on one side are connected to the upper end of the positioning cross seat. At the same time, the lower end of the positioning cross seat is connected to the upper ends of the two limiting side plates. Long rods are symmetrically arranged at the two sides of the lower rear side of the storage box. The bottoms of the two long rods are connected to the rear side of the upper end of the frame.

[0010] Preferably, a guide plate is arranged between the two laterally arranged short rods. The outer side of the lower end of the guide plate is attached to the inner top of the upper end of the corresponding limiting side plate. At the same time, the upper ends of both sides of the guide plate are rotatably connected to the positioning seats arranged on the outer sides of the short rods through the corresponding connecting rods.

[0011] Preferably, the positioning feeding assembly includes a moving cross seat, an electric linear guide rail, an electric push rod and a lower pressing plate. The two sides of the moving cross seat are connected to the inside of the storage box through the electric linear guide rail. At the same time, electric push rods are symmetrically arranged at the upper end of the moving cross seat. The lower end of the electric push rod is connected to the upper end of the lower pressing plate. A laser rangefinder is arranged in the middle of the lower end of the lower pressing plate. At the same time, electromagnetic blocks are symmetrically arranged on both sides of the lower end of the lower pressing plate at the two sides of the laser rangefinder.

[0012] Preferably, a positioning component is provided at the lower end of the support frame, and the positioning component includes a positioning frame. At the same time, two positioning frames are symmetrically arranged. The lower ends of the two positioning frames are connected to the inner bottom end of the groove correspondingly opened on the frame through positioning bolts, and the inner bottom ends of the two positioning frames and the upper surface of the frame are on the same horizontal plane. At the same time, positioning clamp seats are provided at the upper ends of the two positioning frames. Both sides of the two positioning clamp seats are slidably connected to the moving guide grooves opened in the corresponding positioning frames through sliders. At the same time, worms are provided in the middle of the upper ends of the two positioning clamp seats. The tops of the two worms penetrate through the support frame and the corresponding extension frames and extend above the extension frames. The rear sides of the two worms are meshed with worm wheels, and a drive shaft is provided in the middle of the two worm wheels. At the same time, one end of the drive shaft is rotatably connected to the rear side of the corresponding extension frame. The other end of the drive shaft penetrates through the corresponding bearing seat and is connected to the output end of one side of the bidirectional motor.

[0013] Preferably, the bending component includes an electric self-locking guide rail, a mounting vertical rod and a bending seat. The middle of the bending seat is connected to the upper end of the electric self-locking guide rail through the mounting vertical rod. At the same time, the electric self-locking guide rail is arranged inside the mounting groove correspondingly opened on the upper end of the frame. A top plate is provided at the top of the upper end of the bending seat, and arc-shaped convex blocks are symmetrically arranged on the upper and lower sides of the rear side of the bending seat about the middle.

[0014] Preferably, the bending component further includes a mounting vertical plate, and the mounting vertical plate is mounted on the rear side of the upper end of the frame. At the same time, an electric hydraulic cylinder is provided in the middle of the mounting vertical plate. The output end of the electric hydraulic cylinder is connected to a moving plate, and a limiting convex block is provided in the middle of the front surface of the moving plate. At the same time, the position of the limiting convex block is located in the middle of the symmetrically arranged arc-shaped convex blocks.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the bending machine with an automatic aluminum alloy profile feeding mechanism

[0016] (1) In order to solve the problem that when the existing bending machine is in use, it is necessary to manually load the aluminum alloy profiles. Since the profiles are generally heavy, the labor intensity of the operators is large, and it is easy to cause danger during handling, and it is necessary to be careful, resulting in slow feeding speed, increased production cost and reduced production efficiency. In this application, the aluminum alloy profiles are placed at the rear side inside the storage box, and then the electric telescopic rod drives the push plate to move, and the aluminum alloy profiles placed at the rear side of the conveying channel are pushed for feeding directly below the lower pressing plate. Then, the positioning and feeding component conveys the aluminum alloy profiles through the feeding port to the middle of the two limiting side plates, and then the driving component drives the pushing frame to move to automatically feed the aluminum alloy profiles without manual placement, thereby improving the automation of feeding;

[0017] (2) In order to solve the problem that the existing stretch-bending machine can only process aluminum alloy profiles of the same model during use, resulting in low practicality of the stretch-bending machine, in this application, a bidirectional motor is set to drive the drive shaft and the worm gear to rotate, and then the worm gear drives the worm to lift, so that the size of the cavity formed between the positioning frame and the positioning clamp seat can be adjusted according to the size of the aluminum alloy profile, thereby improving the practicality of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view sectional structure schematic diagram of the present invention;

[0019] Figure 2 It is a side view structure schematic diagram of the driving component of the present invention;

[0020] Figure 3 It is a front view sectional structure schematic diagram of the loading device of the present invention;

[0021] Figure 4 It is a front view sectional structure schematic diagram of the stretch-bending mechanism of the present invention;

[0022] Figure 5 It is a front view structure schematic diagram of the present invention;

[0023] Figure 6 It is a three-dimensional structure schematic diagram of the stretch-bending component of the present invention;

[0024] Figure 7 It is a rear view structure schematic diagram of the present invention.

[0025] In the figure: 1, frame; 2, limiting side plate; 201, moving chute; 3, ball screw; 4, pushing frame; 5, driving component; 501, driving motor; 502, driving gear; 503, transmission gear; 504, positioning shaft; 505, linkage gear; 6, loading device; 601, storage box; 6011, blanking port; 602, short rod; 603, positioning cross seat; 604, long rod; 605, guiding plate; 606, connecting rod; 607, positioning seat; 608, partition plate; 609, pushing plate; 610, electric telescopic rod; 611, moving cross seat; 612, electric linear guide; 613, electric push rod; 614, lower pressing plate; 615, laser rangefinder; 616, electromagnetic block; 7, support frame; 701, extending frame; 702, bearing seat; 8, positioning component; 801, positioning frame; 8011, moving guide groove; 802, positioning clamp seat; 803, worm; 804, worm gear; 805, drive shaft; 806, bidirectional motor; 9, stretch-bending component; 901, electric self-locking guide rail; 902, mounting vertical rod; 903, bending seat; 9031, arc-shaped convex block; 904, top plate; 905, mounting vertical plate; 906, electric hydraulic cylinder; 907, moving plate; 9071, limiting convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1-7 , the present invention provides a technical solution: a stretch bending machine with an automatic aluminum alloy profile feeding mechanism. According to Figure 1 , Figure 2 , Figure 5 and Figure 7 as shown, on one side of the upper end of the frame 1, limiting side plates 2 are symmetrically arranged, and a moving chute 201 is opened inside the opposite sides of the two limiting side plates 2. At the same time, a ball screw 3 is arranged in the middle of the two moving chutes 201. The outer ends of the two ball screws 3 are connected to a driving assembly 5. The driving assembly 5 includes a driving motor 501, a driving gear 502, a transmission gear 503, a positioning shaft 504, and a linkage gear 505. The output end of the driving motor 501 is connected to the driving gear 502. At the same time, the two sides of the driving gear 502 are meshed and connected to the transmission gear 503. The two transmission gears 503 are connected to the inside of one side of the frame 1 through the positioning shaft 504. The upper ends of the two transmission gears 503 are respectively meshed and connected to the linkage gear 505. At the same time, the two linkage gears 505 are respectively connected to one end of the corresponding ball screw 3. And the two ball screws 3 are connected by a pushing frame 4 on one side between the two moving chutes 201.

[0028] During use, the driving motor 501 drives the driving gear 502 to rotate, so that the driving gear 502 drives the transmission gear 503 and the linkage gear 505 to rotate. Then the linkage gear 505 drives the corresponding ball screw 3 to rotate, thereby moving the pushing frame 4 arranged on the ball screw 3 to push the aluminum alloy profile placed between the two limiting side plates 2 for feeding.

[0029] According to Figure 1 , Figure 3 , Figure 5 and Figure 7As shown in the figure, a feeding device 6 is provided at the upper end of the limit side plate 2. The feeding device 6 includes a storage box 601. At the same time, the position of the material discharging port 6011 opened at the front side of the lower end of the storage box 601 corresponds to the position of the cavity between the two limit side plates 2. A partition plate 608 is arranged inside the storage box 601. A conveying channel is arranged between the lower end of the partition plate 608 and the bottom of the storage box 601. At the same time, a push plate 609 is arranged at the rear side of the conveying channel. The push plate 609 is of an L-shaped structure. The rear side of the push plate 609 is connected to the rear inner wall of the storage box 601 through equally spaced electric telescopic rods 610. At the same time, the rear side of the push plate 609 penetrates through the corresponding positioning hole opened in the storage box 601 and extends to the outside of the storage box 601. By driving the push plate 609 to move through the electric telescopic rod 610, it is convenient to perform single and quantitative feeding of the aluminum alloy profiles stored inside the storage box 601.

[0030] Further explanation, two short rods 602 are symmetrically arranged at the lower front side of the storage box 601 above the two limit side plates 2. The bottoms of the two longitudinally arranged short rods 602 on one side are connected to the upper end of the positioning cross seat 603. At the same time, the lower end of the positioning cross seat 603 is connected to the upper ends of the two limit side plates 2. Two long rods 604 are symmetrically arranged at the lower sides of the rear end of the storage box 601. The bottoms of the two long rods 604 are connected to the rear upper end of the frame 1. A guide plate 605 is arranged between the two horizontally arranged short rods 602. The outer side of the lower end of the guide plate 605 is attached to the inner top of the upper end of the corresponding limit side plate 2. At the same time, the upper ends of both sides of the guide plate 605 are rotatably connected to the positioning seats 607 arranged on the outer sides of the short rods 602 through the corresponding connecting rods 606. Through the symmetrically arranged guide plates 605, the accuracy of the conveying and moving position of the aluminum alloy profiles is further improved.

[0031] Still further explanation, a positioning feeding component is arranged inside the storage box 601 in front of the partition plate 608. The positioning feeding component is located above the material discharging port 6011. Through the positioning feeding component, it is convenient to perform directional feeding of the aluminum alloy profiles inside the storage box 601 and improve the accuracy of the feeding position. The positioning feeding component includes a moving cross seat 611, an electric linear guide rail 612, an electric push rod 613 and a lower pressing plate 614. The two sides of the moving cross seat 611 are connected to the inside of the storage box 601 through the electric linear guide rail 612. At the same time, electric push rods 613 are symmetrically arranged at the upper end of the moving cross seat 611. The lower ends of the electric push rods 613 are connected to the upper end of the lower pressing plate 614. A laser rangefinder 615 is arranged in the middle of the lower end of the lower pressing plate 614. Through the laser rangefinder 615, it is convenient to monitor the placement position of the aluminum alloy profiles, so as to improve the accuracy of the relative position between the lower pressing plate 614 and the aluminum alloy profiles. At the same time, electromagnetic blocks 616 are symmetrically arranged on both sides of the lower end of the lower pressing plate 614 at both sides of the laser rangefinder 615.

[0032] During use, place the aluminum alloy profile in the space above the push plate 609 inside the storage box 601. Then, drive the push plate 609 to move backward by the electric telescopic rod 610, so that the aluminum alloy profile falls from the upper end of the push plate 609 to the rear side of the conveying channel. Next, the electric telescopic rod 610 drives the push plate 609 to move forward, pushing the aluminum alloy profile out of the conveying channel, making the aluminum alloy profile directly below the lower pressing plate 614. Then, start the electric push rod 613 to push the lower pressing plate 614 downward, so that the electromagnetic block 616 is magnetically connected to the aluminum alloy profile. Next, the electric linear guide rail 612 drives the moving cross seat 611 to move, making the aluminum alloy profile above the blanking port 6011. Then, the electric push rod 613 is used to push the lower pressing plate 614 to move downward continuously, so that the aluminum alloy profile is located between the two limiting side plates 2.

[0033] According to Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in, on the other side of the upper end of the frame 1, a bending mechanism is provided, and the bending mechanism includes a support frame 7, a positioning component 8 and a bending component 9, which are used to position the two ends of the aluminum alloy profile and bend the middle of the aluminum alloy profile.

[0034] Specifically, a positioning component 8 is provided at the lower end of the support frame 7, and the positioning component 8 includes a positioning frame 801. At the same time, two positioning frames 801 are symmetrically arranged. The lower ends of the two positioning frames 801 are connected to the inner bottom end of the groove correspondingly opened on the frame 1 through positioning bolts. And the inner bottom ends of the two positioning frames 801 are on the same horizontal plane as the upper surface of the frame 1. At the same time, positioning clamp seats 802 are provided at the upper ends of the two positioning frames 801. The two sides of the two positioning clamp seats 802 are slidably connected to the moving guide grooves 8011 opened inside the corresponding positioning frames 801 through sliders. And at the middle of the upper ends of the two positioning clamp seats 802, worm gears 803 are provided. At the same time, the tops of the two worm gears 803 penetrate through the support frame 7 and the corresponding extension frames 701 and extend above the extension frames 701. The rear sides of the two worm gears 803 are meshed with worm wheels 804, and a driving shaft 805 is provided in the middle of the two worm wheels 804. At the same time, one end of the driving shaft 805 is rotatably connected to the rear side of the corresponding extension frame 701, and the other end of the driving shaft 805 penetrates through the corresponding bearing seat 702 and is connected to the output end of one side of the bidirectional motor 806.

[0035] During use, the bidirectional motor 806 drives the driving shaft 805 to rotate, so that the driving shaft 805 drives the corresponding connected worm wheel 804 to rotate. Then, the worm wheel 804 drives the corresponding worm gear 803 to move up and down, so that the positioning clamp seat 802 connected to the bottom of the worm gear 803 moves up and down inside the positioning frame 801. Thus, the two positioning clamp seats 802 clamp and fix the aluminum alloy profile synchronously, improving the practicality of use.

[0036] Specifically, the bending component 9 includes an electric self-locking guide rail 901, a mounting vertical rod 902, and a bending seat 903. The middle of the bending seat 903 is connected to the upper end of the electric self-locking guide rail 901 through the mounting vertical rod 902. At the same time, the electric self-locking guide rail 901 is arranged inside the mounting groove correspondingly opened at the upper end of the frame 1. A top plate 904 is arranged on the top of the upper end of the bending seat 903. Arc-shaped convex blocks 9031 are symmetrically arranged on both sides of the middle of the rear side of the bending seat 903 at the upper and lower ends. The bending component 9 further includes a mounting vertical plate 905, and the mounting vertical plate 905 is mounted on the rear side of the upper end of the frame 1. At the same time, an electric hydraulic cylinder 906 is arranged in the middle of the mounting vertical plate 905. The output end of the electric hydraulic cylinder 906 is connected to a moving plate 907. A limiting convex block 9071 is arranged in the middle of the front surface of the moving plate 907. At the same time, the position of the limiting convex block 9071 is located in the middle of the symmetrically arranged arc-shaped convex blocks 9031.

[0037] During use, through the arc-shaped convex blocks 9031, it is convenient to clamp and limit the middle position of the aluminum alloy profile. At the same time, the outer side of the limiting convex block 9071 is attached to the middle of the rear side of the aluminum alloy profile. Then, when starting the electric self-locking guide rail 901 to drive the bending seat 903 to move forward to the front side of the upper end of the frame 1, the electric hydraulic cylinder 906 pushes the moving plate 907 and the limiting convex block 9071 to move forward, so as to bend the middle of the aluminum alloy profile, thus completing the processing.

[0038] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and is a simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the protected content of the present invention.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles, comprising a frame (1), characterized in that: A limiting side plate (2) is symmetrically arranged on one side of the upper end of the frame (1), and a movable slide groove (201) is opened inside the two limiting side plates (2) on opposite sides, and a ball screw (3) is arranged in the middle of the two movable slide grooves (201), and the outer ends of the two ball screws (3) are connected to the driving assembly (5), and the two ball screws (3) are located between the two movable slide grooves (201) and are connected through a pushing frame (4), and a loading device (6) is arranged on the upper end of the limiting side plate (2), and the loading device (6) includes a storage box (601), and the position of the unloading port (6011) opened on the front side of the lower end of the storage box (601) is arranged corresponding to the position of the cavity between the two limiting side plates (2), and a partition plate (608) is arranged inside the storage box (601), and the lower end of the partition plate (608) is connected to the storage box (601). A conveying channel is provided between the bottoms of the boxes (601), and a push plate (609) is provided at the rear side of the conveying channel. The push plate (609) is an L-shaped structure, and the rear side of the push plate (609) is connected to the rear side of the inner wall of the storage box (601) through an electric telescopic rod (610) arranged at equal intervals. At the same time, the rear side of the push plate (609) passes through the corresponding positioning holes of the storage box (601) and extends to the outside of the storage box (601). A positioning and loading assembly is provided inside the storage box (601) in front of the partition plate (608), and the positioning and loading assembly is located above the unloading port (6011). A stretching and bending mechanism is provided on the other side of the upper end of the frame (1), and the stretching and bending mechanism includes a support frame (7), a positioning assembly (8) and a stretching and bending assembly (9), which are used to position the two ends of the aluminum alloy profile and to stretch and bend the middle of the aluminum alloy profile.

2. The stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles according to claim 1, characterized in that: The driving assembly (5) comprises a driving motor (501), a driving gear (502), a transmission gear (503), a positioning shaft (504) and a linkage gear (505), wherein the output end of the driving motor (501) is connected to the driving gear (502), and the two sides of the driving gear (502) are meshedly connected to the transmission gears (503), the two transmission gears (503) are internally connected to one side of the frame (1) through the positioning shaft (504), and the upper ends of the two transmission gears (503) are respectively meshedly connected to the linkage gears (505), and the two linkage gears (505) are respectively connected to one end of a correspondingly arranged ball screw (3).

3. The stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles according to claim 1, characterized in that: The front lower end of the storage box (601) is symmetrically provided with short rods (602) above the two limiting side plates (2), and the bottoms of the two short rods (602) longitudinally arranged on one side are connected to the upper end of the positioning cross seat (603), and the lower end of the positioning cross seat (603) is connected to the upper ends of the two limiting side plates (2). The rear lower end of the storage box (601) is symmetrically provided with long rods (604) on both sides, and the bottoms of the two long rods (604) are connected to the rear side of the upper end of the frame (1).

4. The stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles as claimed in claim 3, characterized in that: A guide plate (605) is provided between the two short rods (602) arranged transversely, and the outer side of the lower end of the guide plate (605) is in contact with the inner top of the upper end of the corresponding limiting side plate (2), and at the same time, the upper ends of both sides of the guide plate (605) are rotatably connected to the positioning seats (607) arranged on the outer sides of the short rods (602) through corresponding connecting rods (606).

5. The stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles according to claim 1, characterized in that: The positioning and loading assembly comprises a movable cross seat (611), an electric linear guide rail (612), an electric push rod (613) and a lower pressing plate (614), and the two sides of the movable cross seat (611) are connected to the inside of the storage box (601) through the electric linear guide rail (612), and the upper end of the movable cross seat (611) is symmetrically provided with an electric push rod (613), the lower end of the electric push rod (613) is connected to the upper end of the lower pressing plate (614), and a laser rangefinder (615) is arranged in the middle of the lower end of the lower pressing plate (614), and electromagnetic blocks (616) are symmetrically arranged on both sides of the laser rangefinder (615) at the lower end of the lower pressing plate (614).

6. The stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles according to claim 1, characterized in that: A positioning assembly (8) is provided at the lower end of the support frame (7), and the positioning assembly (8) includes a positioning frame (801), and two positioning frames (801) are symmetrically provided, and the lower ends of the two positioning frames (801) are connected to the inner bottom ends of the grooves corresponding to the frame (1) through positioning bolts, and the inner bottom ends of the two positioning frames (801) and the upper end surface of the frame (1) are in the same horizontal plane, and the inner upper ends of the two positioning frames (801) are provided with positioning clamp seats (802), and the two sides of the two positioning clamp seats (802) are slidable with the movable guide grooves (8011) provided in the corresponding positioning frames (801) through sliders. The two locating clamp seats (802) are connected, and a worm (803) is arranged in the middle of the upper ends of the two locating clamp seats (802). At the same time, the tops of the two worms (803) pass through the support frame (7) and the corresponding extension frame (701) and extend to the top of the extension frame (701). The rear sides of the two worms (803) are meshedly connected with worm wheels (804), and a driving shaft (805) is arranged in the middle of the two worm wheels (804). At the same time, one end of the driving shaft (805) is rotatably connected to the rear side of the corresponding extension frame (701), and the other end of the driving shaft (805) passes through the corresponding bearing seat (702) and is connected to the output end of one side of the bidirectional motor (806).

7. The stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles according to claim 1, characterized in that: The stretch-bending assembly (9) comprises an electric self-locking guide rail (901), a mounting vertical rod (902) and a bending seat (903), and the middle of the bending seat (903) is connected to the upper end of the electric self-locking guide rail (901) through the mounting vertical rod (902), and the electric self-locking guide rail (901) is arranged inside a mounting groove corresponding to the upper end of the frame (1), and a top plate (904) is arranged on the top of the upper end of the bending seat (903), and arc-shaped protrusions (9031) are symmetrically arranged on the upper and lower ends of the middle two sides of the rear side of the bending seat (903).

8. The stretch bending machine with an automatic feeding mechanism for aluminum alloy profiles according to claim 1, characterized in that: The stretch-bending assembly (9) further comprises a mounting vertical plate (905), and the mounting vertical plate (905) is mounted on the rear side of the upper end of the frame (1), and an electric hydraulic cylinder (906) is arranged in the middle of the mounting vertical plate (905), the output end of the electric hydraulic cylinder (906) is connected to a movable plate (907), and a limiting protrusion (9071) is arranged in the middle of the front face of the movable plate (907), and the position of the limiting protrusion (9071) is located in the middle of the symmetrically arranged arc-shaped protrusions (9031).

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