Batch type aluminum alloy bending machine for constructional engineering

Abstract

The invention discloses a batch type aluminum alloy bending machine for building engineering, and belongs to the technical field of building aluminum alloy bending, the batch type aluminum alloy bending machine comprises four supporting legs, a Z-shaped arm, an extending length limiting mechanism and a follow-up positioning mechanism, two parallel and coplanar supporting plates are supported on the four supporting legs, and the Z-shaped arm is arranged on the Z-shaped arm. Conveying shaft rollers are evenly installed between the two supporting plates, an extending-in length limiting mechanism is further installed between the two supporting plates, a follow-up type positioning mechanism is installed on each supporting plate, the two supporting plates are further connected through a supporting frame, a servo motor is installed on the upper surface of the supporting frame through a motor frame, and the servo motor is connected with the servo motor through the motor frame. The shaft end of the servo motor movably penetrates through the lower surface of the supporting frame. According to the aluminum alloy bending device, the extending length of aluminum alloy can be limited, the situation that the bending position is incorrect due to the fact that the aluminum alloy extends too long or too short is avoided, aluminum alloy of different models can be limited in the vertical direction in a self-adaptive mode, and therefore it is guaranteed that the aluminum alloy is stably bent.

Description

Technical Field

[0001] The invention relates to the technical field of building aluminum alloy bending, and in particular to bending equipment suitable for high-quality aluminum alloys, specifically to a batch type aluminum alloy bending machine for construction engineering. Background Art

[0002] In the early days of construction engineering, aluminum alloy bending mainly relied on manual operation. Construction workers used simple tools, such as hand-cranked bending machines or manual wrenches to bend aluminum alloy. This method was extremely inefficient. For the large amount of aluminum alloy and high-quality aluminum alloy required for large-scale construction projects, manual bending could not meet the project progress requirements. In order to meet the requirements of the project progress, the aluminum alloy is gradually bent by machinery. By bending the aluminum alloy by machinery, the bending efficiency and bending accuracy can be improved. With the further improvement of the efficiency of aluminum alloy bending, equipment that can bend aluminum alloy in batches has been gradually developed and designed. By bending aluminum alloy in batches, the efficiency of aluminum alloy bending can be greatly improved. The existing batch aluminum alloy bending machines for construction projects still have the following technical problems when used, such as: 1. The existing batch aluminum alloy bending machines for construction projects are not equipped with a structure to limit the length of the aluminum alloy when in use, which makes it difficult to ensure the correct bending position of the aluminum alloy. It is easy for the staff to push the aluminum alloy into the bending machine too long or too short, resulting in incorrect bending position, resulting in the aluminum alloy after bending not meeting the requirements; 2. The existing batch aluminum alloy bending machines for construction projects are not easy to adaptively adjust the upper limit structure of the vertical direction of the aluminum alloy when in use. The staff needs to manually or electrically drive the cylinder according to the model of the aluminum alloy to make the limit structure in the vertical direction press the aluminum alloy to ensure that the aluminum alloy can be bent; Therefore, a batch type aluminum alloy bending machine for construction engineering is needed to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a batch aluminum alloy bending machine for construction projects to solve the problems raised in the above background technology that the existing batch aluminum alloy bending machines for construction projects are not provided with a structure to limit the extension length of the aluminum alloy and cannot make the aluminum alloy adaptively limited in the vertical direction.

[0004] To achieve the above object, the present invention provides the following technical solutions: A batch aluminum alloy bending machine for construction engineering, comprising a support foot, a Z-shaped arm, an insertion length limiting mechanism and a follow-up positioning mechanism, wherein the support foot is provided with 4, and the 4 support feet support 2 mutually parallel and coplanar support plates, a conveying shaft roller is evenly installed between the 2 support plates, and an insertion length limiting mechanism is also installed between the 2 support plates, a follow-up positioning mechanism is installed on each of the support plates, and the 2 support plates are also connected through a support frame, a servo motor is installed on the upper surface of the support frame through a motor frame, and the servo motor The shaft end of the machine movably penetrates the lower surface of the support frame, the shaft end of the servo motor is connected to the reducer, and the reducer is installed on the lower surface of the support frame, the two output shafts of the reducer respectively pass through the two ends of the support frame, and the shaft ends of the two output shafts on the reducer are keyed to drive gears, the drive gear is meshed with a transmission gear, and the transmission gear is keyed to one of the shaft ends of the Z-shaped arm, the other shaft ends of the two Z-shaped arms are connected by a bending rod, and the shaft end bearing of the Z-shaped arm connected to the transmission gear passes through the protrusion on the upper surface of the support plate.

[0005] Preferably, the conveying shaft roller is an I-shaped structure, which is convenient for limiting the position of the aluminum alloy and preventing it from rolling into the gap between the conveying shaft roller and the support plate.

[0006] Preferably, the extension length limiting mechanism includes a slide groove, a slide bar, a baffle and an adjusting screw rod. The slide groove is arranged on the outer sides of the two support plates, and a slide bar is slidably connected in each slide groove. One end of the two slide bars is connected through the baffle plate, and the other end of one of the two slide bars is threadedly connected to one end of the adjusting screw rod. The other end of the adjusting screw rod is provided with a bearing passing through the corresponding support plate. The two ends of the baffle plate are connected to the two slide bars by a sliding snap-fit ​​connection, so that the baffle plate can be pulled out from the slide bar, thereby facilitating the removal of the bent aluminum alloy.

[0007] Preferably, the cross-sections of the slide groove and the slide bar are convex structures that match each other, which is convenient for limiting the slide bar, so that the adjustment screw rod rotates to drive the slide bar to move in the slide groove, and the baffle end is arranged close to the bending rod.

[0008] Preferably, the follow-up positioning mechanism includes a positioning pressure rod, a second guide frame, and a transmission shaft rod. The lower surface of the end of the support plate away from the baffle is fixedly connected with a second piston tube, and the lower end of a second piston rod is slidably and seamlessly connected inside the second piston tube. The upper end of the second piston rod movably penetrates above the support plate. The upper ends of the two second piston rods are connected by bearings to an active pressure rod. A spring is arranged between the lower end of the second piston rod and the lower surface of the support plate. The lower surface of the end of the support plate away from the baffle is also fixedly connected with a first piston tube. One end of the first piston tube is connected through a hose to the lower end of the second piston tube in a penetrating manner. The other end of the first piston tube is slidably and seamlessly connected with one end of a first piston rod inside, and the other end of the first piston rod is fixedly connected to the first guide frame. Two support shafts penetrate through each support plate movably, and the opposite support shafts on the two support plates are respectively connected by bearings to the two ends of the positioning pressure rod. The two positioning pressure rods are arranged in parallel. The inner side of the lower end of the support shaft is threaded into the upper end of the transmission shaft rod, and the outer side of the lower end of the transmission shaft rod is connected with the upper end of a guide plate by a twist thread. The middle of the transmission shaft rod is connected by a bearing to a bearing frame, and the bearing frame is fixedly connected to the lower surface of the support plate. The lower end of the guide plate is provided with a guide groove penetrating both sides thereof, and the guide grooves on the two guide plates on the same side are respectively penetrated by the first guide frame and the second guide frame movably. The first guide frame and the second guide frame are connected by a synchronous connecting rod, and the lower end of the guide plate connected to the second guide frame is fixedly connected with a positioning block. The lower end of the positioning block movably extends into a positioning groove, and the positioning groove is arranged on the support foot at the corresponding position of the second guide frame. The guide groove is arranged obliquely, so that when the first piston rod and the synchronous connecting rod move, the guide plate is driven to move in the vertical direction.

[0009] Preferably, the axes of the first piston tube and the second piston tube are arranged perpendicular to each other.

[0010] Preferably, two sections of threads are arranged on the transmission shaft rod, namely a conventional thread and a twist thread. When the guide plate moves in the vertical direction through the twist thread, the transmission shaft rod is driven to rotate. Through the conventional thread, the transmission shaft rod rotates to drive the support shaft to move in the vertical direction and achieve self-locking.

[0011] Preferably, the axes of the synchronous connecting rod, the first piston rod, the first guide frame, and the second guide frame are collinear, and the first guide frame and the second guide frame are in the shape of a Chinese character 'Ri' and a Chinese character 'Kou' respectively.

[0012] Preferably, the tooth number ratio of the driving gear and the transmission gear is greater than 3, which is convenient for increasing the torque and thus helps to bend the aluminum alloy.

[0013] Preferably, the two positioning pressure rods and the active pressure rod are parallel to each other, and the positioning pressure rod and the active pressure rod are both arranged above the conveying shaft roller.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the batch aluminum alloy bending machine for construction engineering can limit the length of the aluminum alloy extension to prevent it from being too long or too short, which leads to incorrect bending position, and can adaptively limit the vertical direction of different types of aluminum alloys, thereby ensuring that the aluminum alloy is stably bent: 1. By turning the adjusting screw rod, the position of one of the two slide bars can be changed, and the position of the other slide bar can be changed synchronously through the baffle connected to it. By adjusting the position of the baffle and the slide bar, the length of the aluminum alloy inserted can be limited, so that when the staff inserts the aluminum alloy and touches the baffle, they know that it is the appropriate length, ensuring the accuracy of the bending position; 2. When the aluminum alloy is inserted between the movable pressure rod and the conveying shaft roller, the movable pressure rod will move up, thereby increasing the volume in the piston tube 2, so that the gas in the piston tube 1 is sucked into the piston tube 2. During this process, the piston rod 1 will gradually move into the piston tube 1. During the movement of the piston rod 1, it will not only drive the guide frame 1 to move, but also drive the guide frame 2 to move synchronously through the synchronous connecting rod. During the movement of the guide frames 1 and 2, the guide plates will gradually move up through the guide grooves, thereby rotating the transmission shaft. By rotating the transmission shaft, the support shaft can be moved up, thereby adjusting the height of the positioning pressure rod. Since the transmission shaft is threadedly connected to the support shaft, the position of the positioning pressure rod can be ensured by thread self-locking, so that its position is relatively stable, and the aluminum alloy can be limited in the vertical direction to prevent it from moving upward during bending, which is helpful for the bending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of point A; Figure 4 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of point B in the middle; Figure 6 For the present invention Figure 4 Schematic diagram of the structure at point C; Figure 7 It is a schematic diagram of the connection structure between the bending rod and the driving gear of the present invention; Figure 8 It is a schematic diagram of the connection structure between the piston rod 1 and the positioning pressure rod of the present invention.

[0016] In the figure: 1. Support foot; 2. Support plate; 3. Slide groove; 4. Slide bar; 5. Baffle; 6. Adjustment screw; 7. Support frame; 8. Servo motor; 9. Drive gear; 10. Transmission gear; 11. Bending rod; 12. Positioning pressure rod; 13. Movable pressure rod; 14. Conveying shaft roller; 15. Piston rod one; 16. Motor frame; 17. Reducer; 18. Guide frame one; 19. Guide plate; 20. Guide groove; 21. Synchronous connecting rod; 22. Z-shaped arm; 23. Piston tube one; 24. Piston rod two; 25. Positioning groove; 26. Positioning block; 27. Guide frame two; 28. Transmission shaft; 29. ​​Bearing frame; 30. Support shaft; 31. Spring; 32. Piston tube two. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 8 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problem that previous batch aluminum alloy bending machines cannot limit the insertion length of aluminum alloy, the following technical solution is provided, specifically, a batch aluminum alloy bending machine for construction engineering, including a support foot 1, a Z-shaped arm 22, an insertion length limiting mechanism and a follow-up positioning mechanism, four support feet 1 are provided, and the four support feet 1 support two mutually parallel and coplanar support plates 2, conveying shaft rollers 14 are evenly installed between the two support plates 2, and an insertion length limiting mechanism is also installed between the two support plates 2.

[0019] The conveying shaft roller 14 is an I-shaped structure, which is convenient for limiting the position of the aluminum alloy and preventing it from rolling into the gap between the conveying shaft roller 14 and the support plate 2. The extending length limiting mechanism includes a slide groove 3, a slide bar 4, a baffle 5 and an adjusting screw 6. The slide groove 3 is arranged on the outer sides of the two support plates 2, and each slide groove 3 is slidably connected with a slide bar 4. One end of the two slide bars 4 is connected through the baffle 5, and the other end of one of the two slide bars 4 is threadedly connected to one end of the adjusting screw 6. The other end of the adjusting screw 6 is bearing-connected through the corresponding support plate 2. The two ends of the baffle 5 are connected to the two slide bars 4 by a sliding snap-fit ​​connection, so that the baffle 5 can be pulled out from the slide bar 4, thereby facilitating the removal of the bent aluminum alloy. The cross-sections of the slide groove 3 and the slide bar 4 are mutually consistent. The convex structure is convenient for limiting the slide bar 4, so that the adjusting screw rod 6 rotates to drive the slide bar 4 to move in the slide groove 3, and the baffle plate 5 is set close to the bending rod 11. The adjusting screw rod 6 is turned to make the slide bar 4 threadedly connected to it move in the slide groove 3, and then the baffle plate 5 drives another slide bar 4 to move synchronously. The synchronous movement of the three can adjust the position of the baffle plate 5, and then the length of the aluminum alloy inserted can be limited as needed. By limiting the length of the aluminum alloy inserted, it can not only avoid the aluminum alloy inserted too long or too short to cause the bending position to be incorrect, but also enable the staff to know that the bending position is correct when the aluminum alloy is inserted until it contacts the baffle plate 5, without having to consider how long the insertion is, which helps to improve the work efficiency of the staff.

[0020] Embodiment 2: In order to solve the problem that the previous batch aluminum alloy bending machine cannot adaptively limit the aluminum alloy in the vertical direction, the following technical solution is provided. Specifically, a follow-up positioning mechanism is installed on each support plate 2, and the two support plates 2 are also connected by a support frame 7. A servo motor 8 is installed on the upper surface of the support frame 7 through a motor frame 16, and the shaft end of the servo motor 8 movably penetrates the lower surface of the support frame 7, and the shaft end of the servo motor 8 is connected to a reducer 17, and the reducer 17 is installed on the lower surface of the support frame 7. The two output shafts of the reducer 17 are respectively passed through the two ends of the support frame 7 by bearings, and the shaft ends of the two output shafts on the reducer 17 are keyed to a driving gear 9, and a transmission gear 10 is meshed and connected to the driving gear 9, and the transmission gear 10 is keyed to one of the shaft ends of the Z-shaped arm 22, and the other shaft ends of the two Z-shaped arms 22 are connected by a bending rod 11, and the shaft end of the Z-shaped arm 22 connected to the transmission gear 10 is bearing-penetrated on the protrusion on the upper surface of the support plate 2.

[0021] The follow-up positioning mechanism includes a positioning pressure rod 12, a guide frame 27 and a transmission shaft 28. The lower surface of the end of the support plate 2 away from the baffle 5 is fixedly connected with a piston tube 22, and the lower end of the piston rod 24 is seamlessly slidably connected in the piston tube 22. The upper end of the piston rod 24 is movable and penetrates to the top of the support plate 2. A movable pressure rod 13 is connected with a bearing between the upper ends of the two piston rods 24. A spring 31 is provided at the lower end of the piston rod 24 and the lower surface of the support plate 2. The lower surface of the end of the support plate 2 away from the baffle 5 is also fixedly connected with a piston tube 1 23. One end of the piston tube 1 23 is connected to the lower end of the piston tube 2 32 through a hose, and the inner side of the other end of the piston tube 23 is seamlessly slidably connected with one end of the piston rod 15. The other end of 15 is fixedly connected to the guide frame 18, and each support plate 2 is movably penetrated by two support shafts 30, and the support shafts 30 on the two support plates 2 are respectively connected to the two ends of the positioning pressure rod 12 by bearings, and the two positioning pressure rods 12 are arranged parallel to each other, and the inner thread of the lower end of the support shaft 30 extends into the upper end of the transmission shaft 28, and the outer twist thread of the lower end of the transmission shaft 28 is connected to the upper end of the guide plate 19, and the middle bearing of the transmission shaft 28 is connected to the bearing frame 29, and the bearing frame 29 is fixedly connected to the lower surface of the support plate 2, and the lower end of the guide plate 19 is provided with a guide groove 20 running through both sides thereof, and the guide grooves 20 on the two guide plates 19 on the same side are respectively movably penetrated by the guide frame 18 and the guide frame 27, and the guide frame 11 is connected to the guide frame 12 by the guide frame 18. 8 and the guide frame 27 are connected through a synchronous connecting rod 21, and the lower end of the guide plate 19 connected to the guide frame 27 is fixedly connected with a positioning block 26, and the lower end of the positioning block 26 is movably extended into the positioning groove 25, and the positioning groove 25 is arranged on the support foot 1 at the corresponding position of the guide frame 27, and the guide groove 20 is arranged to be inclined, so that when the piston rod 15 and the synchronous connecting rod 21 move, the guide plate 19 is driven to move in the vertical direction, and the axes of the piston tube 1 23 and the piston tube 2 32 are arranged perpendicular to each other. Two sections of threads are arranged on the transmission shaft 28, which are conventional threads and twist threads respectively. When the guide plate 19 moves in the vertical direction through the twist thread, the transmission shaft 28 is driven to rotate, and the conventional thread is used to realize the rotation of the transmission shaft 28, which drives the support shaft 30 moves in the vertical direction and realizes self-locking. When the aluminum alloy is extended into the machine body from between the movable pressure rod 13 and the conveying shaft roller 14, since the diameter of the aluminum alloy is greater than the shortest distance between the movable pressure rod 13 and the conveying shaft roller 14, the movable pressure rod 13 will move upward, thereby making the piston rod 24 move upward, so that negative pressure is generated in the piston tube 2 32, so that the gas in the piston tube 1 23 is sucked into the piston tube 2 32, so that the piston rod 15 moves into the piston tube 1 23 connected thereto. When the piston tube 1 23 moves, the synchronous connecting rod 21, the guide frame 1 18 and the guide frame 27 will move synchronously. During the movement of the guide frame 18 and the guide frame 27, the guide plate 19 will move in the vertical direction through the guide groove 20.Then the transmission shaft 28 can be driven to rotate. During the rotation of the transmission shaft 28, the support shaft 30 connected by the thread can be driven to move in the vertical direction, so that the position of the positioning pressure rod 12 can be adjusted, and the aluminum alloy can be limited in the vertical direction to prevent the aluminum alloy from tilting upward and failing to bend effectively during bending. The axes of the synchronous connecting rod 21, the piston rod 15, the guide frame 18 and the guide frame 27 are arranged in a colinear manner, and the guide frame 18 and the guide frame 27 are respectively in the shape of a sun and a mouth. The gear ratio of the driving gear 9 and the transmission gear 10 is greater than 3, which is convenient for increasing the torque, thereby helping to bend the aluminum alloy. The two positioning pressure rods 12 and the movable pressure rod 13 are parallel to each other, and the positioning pressure rod 12 and the movable pressure rod 13 are arranged in parallel above the conveying shaft roller 14. The driving gear 9 is driven to rotate by the servo motor 8 and the reducer 17, so that the transmission gear 10 meshing with it drives the Z-shaped arm 22 to rotate, thereby realizing the rotation of the bending rod 11, thereby bending the aluminum alloy.

[0022] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A batch aluminum alloy bending machine for construction engineering, comprising a support leg (1), a Z-shaped arm (22), an insertion length limiting mechanism and a follower positioning mechanism, characterized in that: The support legs (1) are provided in four numbers, and the four support legs (1) support two support plates (2) which are parallel to each other and coplanar, a conveying shaft roller (14) is evenly installed between the two support plates (2), and an insertion length limiting mechanism is also installed between the two support plates (2), each of the support plates (2) is installed with a follower positioning mechanism, and the two support plates (2) are also connected via a support frame (7), a servo motor (8) is installed on the upper surface of the support frame (7) via a motor frame (16), and the shaft end of the servo motor (8) movably penetrates the lower surface of the support frame (7), and the shaft end of the servo motor (8) is connected to the lower surface of the support frame (7). The reducer (17) is mounted on the lower surface of the support frame (7), the two output shafts of the reducer (17) respectively pass through the two ends of the support frame (7), and the shaft ends of the two output shafts on the reducer (17) are keyed to drive gears (9), the drive gear (9) is meshed with a transmission gear (10), and the transmission gear (10) is keyed to one of the shaft ends of the Z-shaped arm (22), the other shaft ends of the two Z-shaped arms (22) are connected by a bending rod (11), and the shaft end bearings of the Z-shaped arm (22) connected to the transmission gear (10) pass through the protrusions on the upper surface of the support plate (2).

2. The batch aluminum alloy bending machine for construction engineering according to claim 1 is characterized by: The conveying shaft roller (14) is an I-shaped structure, which is convenient for limiting the position of the aluminum alloy and preventing it from rolling into the gap between the conveying shaft roller (14) and the support plate (2).

3. The batch aluminum alloy bending machine for construction engineering according to claim 2 is characterized by: The insertion length limiting mechanism comprises a slide groove (3), a slide bar (4), a baffle (5) and an adjusting screw rod (6); the slide groove (3) is arranged on the outer sides of the two support plates (2), and a slide bar (4) is slidably connected in each slide groove (3); one end of the two slide bars (4) is connected through the baffle (5), and the other end of one of the two slide bars (4) is threadedly connected to one end of the adjusting screw rod (6); the other end of the adjusting screw rod (6) is provided with a bearing penetrating the corresponding support plate (2); the two ends of the baffle plate (5) are connected to the two slide bars (4) by a sliding engagement connection, so that the baffle plate (5) can be pulled out from the slide bar (4), thereby facilitating the removal of the bent aluminum alloy.

4. The batch aluminum alloy bending machine for construction engineering according to claim 3 is characterized by: The cross-sections of the slide groove (3) and the slide bar (4) are mutually matching convex structures, which facilitate the positioning of the slide bar (4), so that the adjusting screw rod (6) rotates to drive the slide bar (4) to move in the slide groove (3), and the baffle plate (5) is arranged close to the bending rod (11).

5. The batch aluminum alloy bending machine for construction engineering according to claim 4 is characterized in that: The follow-up positioning mechanism includes a positioning pressure rod (12), a second guide frame (27) and a transmission shaft rod (28). The lower surface of one end of the support plate (2) away from the baffle (5) is fixedly connected with a second piston tube (32), and the lower end of the second piston rod (24) is slidably and seamlessly connected inside the second piston tube (32). The upper end of the second piston rod (24) movably penetrates above the support plate (2). An activity pressure rod (13) is connected by bearings between the upper ends of the two second piston rods (24). A spring (31) is arranged between the lower end of the second piston rod (24) and the lower surface of the support plate (2). The lower surface of one end of the support plate (2) away from the baffle (5) is also fixedly connected with a first piston tube (23). One end of the first piston tube (23) is connected through a hose to the lower end of the second piston tube (32). The other end of the first piston tube (23) is slidably and seamlessly connected with one end of a first piston rod (15) inside, and the other end of the first piston rod (15) is fixedly connected to the first guide frame (18). Two support shafts (30) movably penetrate through each support plate (2). The opposite support shafts (30) on the two support plates (2) are respectively connected by bearings to both ends of the positioning pressure rod (12). The two positioning pressure rods (12) are arranged in parallel. The upper end of the transmission shaft rod (28) is threadedly inserted into the inner side of the lower end of the support shaft (30). The outer side of the lower end of the transmission shaft rod (28) is connected with the upper end of a guide plate (19) by a twist thread. The middle of the transmission shaft rod (28) is connected by a bearing to a bearing frame (29), and the bearing frame (29) is fixedly connected to the lower surface of the support plate (2). The lower end of the guide plate (19) is provided with a guide groove (20) penetrating both sides thereof. The guide grooves (20) on the two guide plates (19) on the same side are respectively movably penetrated by the first guide frame (18) and the second guide frame (27). The first guide frame (18) and the second guide frame (27) are connected by a synchronous connecting rod (21). The lower end of the guide plate (19) connected to the second guide frame (27) is fixedly connected with a positioning block (26). The lower end of the positioning block (26) movably extends into a positioning groove (25), and the positioning groove (25) is arranged on the support leg (1) at the corresponding position of the second guide frame (27). The guide groove (20) is arranged obliquely, so that when the first piston rod (15) and the synchronous connecting rod (21) move, the guide plate (19) is driven to move in the vertical direction.

6. The batch aluminum alloy bending machine for construction engineering according to claim 5 is characterized by: The axes of the first piston tube (23) and the second piston tube (32) are perpendicular to each other.

7. The batch aluminum alloy bending machine for construction engineering according to claim 6 is characterized by: Two sections of threads are arranged on the transmission shaft rod (28), namely a conventional thread and a twist thread. When the guide plate (19) moves in the vertical direction through the twist thread, the transmission shaft rod (28) is driven to rotate. Through the conventional thread, the transmission shaft rod (28) rotates to drive the support shaft (30) to move in the vertical direction and achieve self-locking.

8. The batch aluminum alloy bending machine for construction engineering according to claim 7 is characterized by: The axes of the synchronous connecting rod (21), the first piston rod (15), the first guide frame (18) and the second guide frame (27) are collinear. The first guide frame (18) and the second guide frame (27) are in the shape of a Chinese character 'Ri' and a Chinese character 'Kou' respectively.

9. The batch aluminum alloy bending machine for construction engineering according to claim 8 is characterized by: The gear ratio between the driving gear (9) and the transmission gear (10) is greater than 3, which facilitates increasing the torque, thereby facilitating bending of the aluminum alloy.

10. The batch aluminum alloy bending machine for construction engineering according to claim 9, characterized in that: The two positioning pressure rods (12) and the movable pressure rod (13) are parallel to each other, and the positioning pressure rod (12) and the movable pressure rod (13) are both arranged in parallel above the conveying shaft roller (14).

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