Bending device for square aluminum profile machining and machining method thereof

Abstract

The invention relates to the technical field of bending devices, and discloses a square aluminum profile machining bending device which comprises a cutter shell, a movable groove is formed in one side of the cutter shell, a first connecting block is movably mounted in the movable groove, a push block is fixedly connected to the outer side of the first connecting block, and a first mounting hole is formed in the outer side of the push block; a pressing rod is movably mounted in the first mounting hole, the pressing rod is movably sleeved with a first connecting block, and one side of the first connecting block is fixedly connected with a first mounting box. According to the bending device for square aluminum profile machining, through the arranged limiting plate and the arranged pressing rod, a blade with the position changed through stretching and retracting can be conveniently fixed, use of an art knife is facilitated, through the arranged sealing clamping plate, the blade can be conveniently taken out for replacement, and the use efficiency of the art knife is improved; and through the arrangement of the hidden baffle, the working state of the blade can be conveniently switched, and the use requirements under different conditions are met.

Description

Technical Field

[0001] The present invention relates to the technical field of bending devices, and particularly relates to a bending device for processing square aluminum profiles and a processing method thereof. Background Art

[0002] Aluminum profiles refer to various cross-sectional shaped aluminum alloy products manufactured through an extrusion molding process. They have the advantages of light weight, high strength, corrosion resistance, etc., and are widely used in multiple fields such as construction, transportation, and electronics. In actual use, it is necessary to bend the aluminum profiles to meet the requirements of different situations.

[0003] Common aluminum profile bending methods include three-axis bending. The principle of three-axis bending is to set two rollers at the lower part for supporting and guiding the aluminum profile, and set a roller for applying force at the upper part. The aluminum profile is bent by the up and down movement of the upper roller and the combined action of the two lower rollers. In the actual production process, it is often necessary to achieve different bending angles. The existing bending devices are not convenient for adjusting the bending angle. The bending devices often need to bend aluminum profiles with different widths. The existing bending devices are not convenient for positioning aluminum profiles with different widths, which affects the bending accuracy. Therefore, a bending device for processing square aluminum profiles and a processing method thereof are proposed. Summary of the Invention

[0004] The main purpose of the present invention is to provide a bending device for processing square aluminum profiles and a processing method thereof, which solves the problems that in the actual production process, it is often necessary to achieve different bending angles, the existing bending devices are not convenient for adjusting the bending angle, the bending devices often need to bend aluminum profiles with different widths, and the existing bending devices are not convenient for positioning aluminum profiles with different widths, which affects the bending accuracy.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A bending device for processing square aluminum profiles includes an upper housing. A lower housing is fixedly connected below the upper housing. A second motor is fixedly connected to one side inside the lower housing. A first transmission rod is fixedly connected to the output end on one side of the second motor. Two transmission gears are fixedly sleeved at equal intervals on the outer side of the first transmission rod. Two first connection slots are opened at equal intervals above the lower housing. Transmission blocks are movably installed in both of the two first connection slots. A first toothed plate is fixedly connected below one of the transmission blocks, and a second toothed plate is fixedly connected below the other transmission block. The inner sides of the first toothed plate and the second toothed plate are respectively engaged with the two transmission gears.

[0007] Further, a second transmission rod is movably sleeved inside each of the two transmission blocks. Two third connection grooves are equidistantly formed on the outer side of the upper housing. One end of the outer side of each of the two second transmission rods passes through the two third connection grooves respectively, and a guide shaft assembly is fixedly connected to one end of the outer side of each of the two second transmission rods.

[0008] Further, the guide shaft assembly includes a guide shaft. One side of the guide shaft is fixedly connected to the second transmission rod. A first baffle is fixedly sleeved on the outer side of the guide shaft. One end of the guide shaft is fixedly connected to a first connecting plate. A first spring is fixedly connected to the inner side of the first connecting plate. A second baffle is fixedly connected to the inner side of the first spring, and the second baffle is movably sleeved on the outer side of the guide shaft.

[0009] Further, a third motor is fixedly connected to the inner side of the upper housing. A first worm is fixedly connected to the outer side of the output end on one side of the third motor. A third transmission rod is fixedly connected to the outer side of the first worm. A square telescopic rod is fixedly connected to the outer side of the third transmission rod. A fourth transmission rod is fixedly connected to the outer side of the square telescopic rod. A second worm is fixedly connected to the outer side of the fourth transmission rod. A worm gear is fixedly connected to one end of the inner side of each of the two second transmission rods, and the two worm gears are respectively meshed with the first worm and the second worm above them.

[0010] Further, a fourth motor is fixedly connected to the inside of the upper housing. A screw rod is fixedly connected to the output end below the fourth motor. The lower end of the screw rod is movably sleeved with a limit base, and the lower housing is fixedly connected to the lower side of the limit base.

[0011] Further, a slider is threadedly connected to the outer side of the screw rod. A connecting bracket is fixedly connected to one side of the slider. A fifth motor is fixedly connected to the inside of the connecting bracket. A fifth transmission rod is fixedly connected to the output end on one side of the fifth motor, and the fifth transmission rod is movably sleeved on the connecting bracket.

[0012] Further, a second connection groove is formed on the outer side of the upper housing. One end of the outer side of the fifth transmission rod passes through the second connection groove. A bent shaft is fixedly connected to one end of the outer side of the fifth transmission rod. A third baffle is fixedly sleeved on the outer side of the bent shaft. One end of the bent shaft is fixedly connected to a second connecting plate. A second spring is fixedly connected to the inner side of the second connecting plate. A fourth baffle is fixedly connected to the inner side of the second spring, and the fourth baffle is movably sleeved on the outer side of the bent shaft.

[0013] Furthermore, a first motor is fixedly connected to the outer side of the lower housing. The upper output end of the first motor is fixedly connected to a pressing block. A limiting block is fixedly connected to the outer side of the pressing block. A limiting track is movably sleeved on the outer side of the limiting block. One side of the limiting track is fixedly connected to the lower housing. A control panel is fixedly connected to the outer side of the upper housing. The control panel is electrically connected to the second motor, the third motor, the fourth motor, the fifth motor and the first motor.

[0014] A method of using a bending device for processing square aluminum profiles, such as the bending device for processing square aluminum profiles described above, the specific use steps are as follows:

[0015] S1. When in use, place the lower housing on a horizontal plane and connect to an external power source through the control panel;

[0016] S2. When bending, place the aluminum profile on the two guide shafts. The first spring generates a reaction force to push the second baffle to squeeze the aluminum profile. The second baffle and the first baffle jointly position the aluminum profile;

[0017] S3. Start the third motor. The worm drives the guide shaft assembly to move through the second transmission rod, and the guide shaft assembly then drives the aluminum profile to the bending position;

[0018] S4. When bending, start the fourth motor. The bending shaft and the two guide shafts jointly act to squeeze and bend the aluminum profile;

[0019] S5. When the bending is completed, start the first motor. The pressing block squeezes the aluminum profile during the movement until the aluminum profile is pushed out of the guide shaft assembly.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting the transmission gears, the present invention can adjust the distance between the guide shaft assemblies, which facilitates the adjustment of the bending angle and meets the usage requirements in different situations. Start the second motor. The second motor drives the two transmission gears to rotate through the first transmission rod. The two transmission gears drive the two transmission blocks to move away from each other through the first toothed plate and the second toothed plate respectively. The two transmission blocks then drive the two guide shaft assemblies to move away from each other, so that the angle of the aluminum profile changes during bending. Through such a setting, the distance between the guide shaft assemblies can be adjusted, which facilitates the adjustment of the bending angle and meets the usage requirements in different situations.

[0022] 2. By providing the second baffle plate, the present invention can position and support aluminum profiles of different widths, improving the bending accuracy. When placing the aluminum profile on the guiding shaft, one side of the aluminum profile closely abuts against the first baffle plate, and the other side of the aluminum profile presses against the second baffle plate. The second baffle plate compresses the first spring, and the first spring generates a reaction force to push the second baffle plate to press against the aluminum profile. The second baffle plate and the first baffle plate jointly position the aluminum profile. Through this setting, aluminum profiles of different widths can be positioned and supported, improving the bending accuracy.

[0023] 3. By providing the extrusion block, the present invention can discharge the bent aluminum profile, improving the usage efficiency of the device. After bending is completed, start the first motor. The first motor drives the extrusion block to move upward. During the movement, the extrusion block presses against the aluminum profile until the aluminum profile is pushed out of the guiding shaft assembly. Through this setting, the bent aluminum profile can be discharged, improving the usage efficiency of the device.

[0024] Parts not involved in this device are the same as or can be implemented using existing technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a bending device for square aluminum profiles according to the present invention from the first angle.

[0026] Figure 2 It is a schematic diagram of the overall structure of a bending device for square aluminum profiles according to the present invention from the second angle.

[0027] Figure 3 It is an enlarged schematic diagram of a partial structure of the lower housing of a bending device for square aluminum profiles according to the present invention.

[0028] Figure 4 It is an enlarged schematic diagram of a partial structure of the transmission gear of a bending device for square aluminum profiles according to the present invention.

[0029] Figure 5 It is an enlarged schematic diagram of a partial structure of the worm of a bending device for square aluminum profiles according to the present invention.

[0030] Figure 6 It is an enlarged schematic diagram of a partial structure of the guiding shaft of a bending device for square aluminum profiles according to the present invention.

[0031] Figure 7 It is an enlarged schematic diagram of a partial structure of the screw of a bending device for square aluminum profiles according to the present invention.

[0032] Figure 8 It is an enlarged schematic diagram of a partial structure of the extrusion block of a bending device for square aluminum profiles according to the present invention.

[0033] In the figure: 1, upper housing; 2, lower housing; 3, control panel; 4, first motor; 5, extrusion block; 6, limit block; 7, limit track; 8, second motor; 9, first transmission rod; 10, transmission gear; 11, first tooth plate; 13, second tooth plate; 14, transmission block; 16, second transmission rod; 17, first baffle; 18, guide shaft; 19, first connecting plate; 20, first spring; 21, second baffle; 22, third motor; 23, first worm; 2 4. Worm gear; 25. Third transmission rod; 26. Square telescopic rod; 27. Fourth transmission rod; 28. Fourth motor; 29. Screw; 30. Limit base; 31. Slider; 32. Connecting bracket; 33. Fifth motor; 34. Fifth transmission rod; 35. Third baffle; 36. Bending shaft; 37. Second connecting plate; 38. Second spring; 39. Fourth baffle; 40. First connecting groove; 41. Second connecting groove; 42. Third connecting groove; 43. Second worm. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figures 1 - 4 As shown, a bending device for processing square aluminum profiles comprises an upper shell 1, a lower shell 2 is fixedly connected to the lower part of the upper shell 1, a second motor 8 is fixedly connected to one side of the inner part of the lower shell 2, a first transmission rod 9 is fixedly connected to one side of the output end of the second motor 8, two transmission gears 10 are fixedly sleeved equidistantly on the outer side of the first transmission rod 9, two first connecting grooves 40 are equidistantly provided on the upper part of the lower shell 2, transmission blocks 14 are movably installed in the two first connecting grooves 40, a first tooth plate 11 is fixedly connected to the lower part of one transmission block 14, a second tooth plate 13 is fixedly connected to the lower part of the other transmission block 14, the inner sides of the first tooth plate 11 and the second tooth plate 13 are respectively connected to the two transmission gears 10, by adopting the above technical scheme, the first connecting groove 40 can limit the transmission block 14 to move only in a straight line, and the transmission block 14 will not separate from the first connecting groove 40 during the movement;

[0036] Limiting baffles are installed on the outer sides of the first tooth plate 11 and the second tooth plate 13 to prevent the transmission gear 10 from being disengaged from the first tooth plate 11 and the second tooth plate 13 during movement;

[0037] The tooth connection positions of the first tooth plate 11 and the second tooth plate 13 with the two transmission gears 10 are respectively on the upper and lower sides of the transmission gear 10, so that when the first transmission rod 9 drives the transmission gear 10 to move, it will also drive the first tooth plate 11 and the second tooth plate 13 to move in two opposite directions, so that the first tooth plate 11 and the second tooth plate 13 will approach each other or move away from each other.

[0038] As Figures 1 - 4 shown, a second transmission rod 16 is movably sleeved inside each of the two transmission blocks 14. Two third connection grooves 42 are equidistantly formed on the outer side of the upper housing 1. One end of the outer side of each of the two second transmission rods 16 passes through the two third connection grooves 42 respectively. A guide shaft assembly is fixedly connected to one end of the outer side of each of the two second transmission rods 16. By adopting the above technical solution, a limiting baffle is provided on the transmission block 14, so that the second transmission rod 16 will not break away from the sleeve of the transmission block 14;

[0039] When the transmission block 14 moves, it can drive the second transmission rod 16 to move in a straight line direction.

[0040] As Figures 1 - 6 shown, the guide shaft assembly includes a guide shaft 18. One side of the guide shaft 18 is fixedly connected to the second transmission rod 16. A first baffle 17 is fixedly sleeved on the outer side of the guide shaft 18. One end of the guide shaft 18 is fixedly connected to a first connecting plate 19. A first spring 20 is fixedly connected to the inner side of the first connecting plate 19. A second baffle 21 is fixedly connected to the inner side of the first spring 20. The second baffle 21 is movably sleeved on the outer side of the guide shaft 18. With such a setting, the outer shape of the second baffle 21 has a certain arc, which can better guide the aluminum profile onto the guide shaft 18.

[0041] As Figures 1 - 5 shown, a third motor 22 is fixedly connected to the inner side of the upper housing 1. A first worm 23 is fixedly connected to the outer side of the output end of one side of the third motor 22. A third transmission rod 25 is fixedly connected to the outer side of the first worm 23. A square telescopic rod 26 is fixedly connected to the outer side of the third transmission rod 25. A fourth transmission rod 27 is fixedly connected to the outer side of the square telescopic rod 26. A second worm 43 is fixedly connected to the outer side of the fourth transmission rod 27. One end of the inner side of each of the two second transmission rods 16 is fixedly connected to a worm gear 24. The first worm 23 and the second worm 43 are respectively engaged with the worm gears 24 above the two worm gears 24. With such a setting, limiting plates are installed on the outer sides of the two transmission blocks 14. The two limiting plates are respectively movably sleeved on the third transmission rod 25 and the fourth transmission rod 27. The limiting plates can limit and drive the third transmission rod 25 and the fourth transmission rod 27 to move in a straight line, and at the same time will not interfere with the rotation of the third transmission rod 25 and the fourth transmission rod 27. When the transmission block 14 moves, it can drive the third transmission rod 25 and the fourth transmission rod 27 to move through the limiting plates. Furthermore, the third transmission rod 25 and the fourth transmission rod 27 drive the first worm 23 and the second worm 43 to move, so that the first worm 23 and the second worm 43 maintain the engaged state with the worm gears 24;

[0042] The square telescopic rod 26 can be telescoped and can transmit the rotational force at the same time, so that when the positions of the third transmission rod 25 and the fourth transmission rod 27 change, there will be no interference;

[0043] A telescopic rod capable of transmitting rotational force is installed at the position where the first worm gear 23 is connected to the output end on one side of the third motor 22, so that interference will not occur when the positions of the third transmission rod 25 and the fourth transmission rod 27 change.

[0044] As Figures 1 - 3 、 Figure 7 shown, a fourth motor 28 is fixedly connected inside the upper housing 1. The lower output end of the fourth motor 28 is fixedly connected to a screw rod 29. The lower end of the screw rod 29 is movably sleeved with a limit base 30. The lower housing 2 is fixedly connected below the limit base 30. Through such a setting, the limit base 30 can limit the screw rod 29 and will not affect the rotation of the screw rod 29 at the same time.

[0045] As Figures 1 - 3 、 Figure 7 shown, a slider 31 is threadedly connected to the outside of the screw rod 29. One side of the slider 31 is fixedly connected to a connecting bracket 32. A fifth motor 33 is fixedly connected inside the connecting bracket 32. The output end on one side of the fifth motor 33 is fixedly connected to a fifth transmission rod 34, and the fifth transmission rod 34 is movably sleeved on the connecting bracket 32. By adopting the above technical solution, the connecting bracket 32 can drive the fifth motor 33 and the fifth transmission rod 34 to move up and down.

[0046] As Figures 1 - 3 、 Figure 7 shown, a second connection groove 41 is opened on the outside of the upper housing 1. One end on the outside of the fifth transmission rod 34 passes through the second connection groove 41. One end on the outside of the fifth transmission rod 34 is fixedly connected to a bending shaft 36. A third baffle 35 is fixedly sleeved on the outside of the bending shaft 36. One end of the bending shaft 36 is fixedly connected to a second connecting plate 37. A second spring 38 is fixedly connected to the inside of the second connecting plate 37. A fourth baffle 39 is fixedly connected to the inside of the second spring 38. The fourth baffle 39 is movably sleeved on the outside of the bending shaft 36. Through such a setting, the position of the bending shaft 36 is arranged on the upper side in the middle of the two guide shaft assemblies.

[0047] As Figures 1 - 8 shown, a first motor 4 is fixedly connected to the outside of the lower housing 2. The upper output end of the first motor 4 is fixedly connected to an extrusion block 5. A limit block 6 is fixedly connected to the outside of the extrusion block 5. The limit block 6 is movably sleeved on the outside of a limit track 7. One side of the limit track 7 is fixedly connected to the lower housing 2. A control panel 3 is fixedly connected to the outside of the upper housing 1. The control panel 3 is electrically connected to the second motor 8, the third motor 22, the fourth motor 28, the fifth motor 33 and the first motor 4. Through such a setting, the extrusion block 5 is shaped with a certain arc on the outside and can push the aluminum profile upward and outward.

[0048] It should be noted that during use, the lower housing 2 is placed on a horizontal plane, and an external power supply is connected through the control panel 3.

[0049] When bending, the aluminum profile is placed on the two guide shafts 18. One side of the aluminum profile is closely attached to the first baffle 17, and the other side of the aluminum profile presses against the second baffle 21. The second baffle 21 compresses the first spring 20, and the first spring 20 generates a reaction force to push the second baffle 21 to press against the aluminum profile. The second baffle 21 and the first baffle 17 jointly position the aluminum profile.

[0050] Start the third motor 22. The third motor 22 drives the second worm 43 to rotate through the first worm 23, the third transmission rod 25, the square telescopic rod 26, and the fourth transmission rod 27. The first worm 23 and the second worm 43 drive the worm wheel 24 to rotate. The worm wheel 24 drives the guide shaft assembly to move through the second transmission rod 16, and the guide shaft assembly then drives the aluminum profile to reach the bending position.

[0051] When bending, start the fourth motor 28. The fourth motor 28 drives the slider 31 to move through the screw 29. The slider 31 drives the connecting bracket 32 to move downward. The connecting bracket 32 drives the bending shaft 36 to gradually approach the aluminum profile through the fifth transmission rod 34. At the same time, start the fifth motor 33. The fifth motor 33 drives the bending shaft 36 to rotate through the fifth transmission rod 34. The bending shaft 36 and the two guide shafts 18 jointly act to press and bend the aluminum profile. After bending is completed, operate in reverse to make the bending shaft 36 and the two guide shafts 18 move away from each other.

[0052] When bending is completed, start the first motor 4. The first motor 4 drives the extrusion block 5 to move upward. The extrusion block 5 presses against the aluminum profile during movement until the aluminum profile is pushed out of the guide shaft assembly.

[0053] When it is necessary to adjust the bending angle, start the second motor 8. The second motor 8 drives the two transmission gears 10 to rotate through the first transmission rod 9. The two transmission gears 10 drive the two transmission blocks 14 to move away from each other through the first toothed plate 11 and the second toothed plate 13 respectively. The two transmission blocks 14 then drive the two guide shaft assemblies to move away from each other, so that the angle of the aluminum profile changes during bending.

[0054] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A bending device for processing square aluminum profiles, comprising an upper housing (1), characterized in that: A lower housing (2) is fixedly connected below the upper housing (1). A second motor (8) is fixedly connected to one side inside the lower housing (2). A first transmission rod (9) is fixedly connected to the output end on one side of the second motor (8). Two transmission gears (10) are fixedly sleeved on the outer side of the first transmission rod (9) at equal intervals. Two first connection grooves (40) are opened at equal intervals above the lower housing (2). Transmission blocks (14) are movably installed in both of the two first connection grooves (40). A first toothed plate (11) is fixedly connected below one of the transmission blocks (14), and a second toothed plate (13) is fixedly connected below the other transmission block (14). The inner sides of the first toothed plate (11) and the second toothed plate (13) are respectively engaged with the two transmission gears (10).

2. The bending device for processing square aluminum profiles according to claim 1, characterized in that: A second transmission rod (16) is movably sleeved inside both of the two transmission blocks (14). Two third connection grooves (42) are opened at equal intervals on the outer side of the upper housing (1). One ends on the outer sides of the two second transmission rods (16) respectively pass through the two third connection grooves (42). Guide shaft assemblies are fixedly connected to one ends on the outer sides of the two second transmission rods (16).

3. A bending device for processing square aluminum profiles according to claim 2, characterized in that: The guide shaft assembly includes a guide shaft (18). A second transmission rod (16) is fixedly connected to one side of the guide shaft (18). A first baffle (17) is fixedly sleeved on the outer side of the guide shaft (18). A first connecting plate (19) is fixedly connected to one end of the guide shaft (18). A first spring (20) is fixedly connected to the inner side of the first connecting plate (19). A second baffle (21) is fixedly connected to the inner side of the first spring (20). The second baffle (21) is movably sleeved on the outer side of the guide shaft (18).

4. The bending device for processing square aluminum profiles according to claim 3, characterized in that: A third motor (22) is fixedly connected to the inner side of the upper housing (1). A first worm (23) is fixedly connected to the outer side of the output end on one side of the third motor (22). A third transmission rod (25) is fixedly connected to the outer side of the first worm (23). A square telescopic rod (26) is fixedly connected to the outer side of the third transmission rod (25). A fourth transmission rod (27) is fixedly connected to the outer side of the square telescopic rod (26). A second worm (43) is fixedly connected to the outer side of the fourth transmission rod (27). One ends on the inner sides of the two second transmission rods (16) are fixedly connected with worm wheels (24). The first worm (23) and the second worm (43) are respectively engaged with the upper sides of the two worm wheels (24).

5. The bending device for processing square aluminum profiles according to claim 4, wherein: A fourth motor (28) is fixedly connected to the inside of the upper housing (1). A screw rod (29) is fixedly connected to the output end below the fourth motor (28). The lower end of the screw rod (29) is movably sleeved with a limit base (30). The limit base (30) is fixedly connected to the lower housing (2) below.

6. A bending device for processing square aluminum profiles according to claim 5, characterized in that: A slider (31) is threadedly connected to the outer side of the screw rod (29). One side of the slider (31) is fixedly connected to a connection bracket (32). A fifth motor (33) is fixedly connected inside the connection bracket (32). A fifth transmission rod (34) is fixedly connected to the output end on one side of the fifth motor (33), and the fifth transmission rod (34) is movably sleeved on the connection bracket (32).

7. A bending device for processing square aluminum profiles according to claim 6, characterized in that: A second connection groove (41) is formed on the outer side of the upper housing (1). One outer end of the fifth transmission rod (34) passes through the second connection groove (41). A bent shaft (36) is fixedly connected to the outer end of the fifth transmission rod (34). A third baffle (35) is fixedly sleeved on the outer side of the bent shaft (36). One end of the bent shaft (36) is fixedly connected to a second connecting plate (37). A second spring (38) is fixedly connected to the inner side of the second connecting plate (37). A fourth baffle (39) is fixedly connected to the inner side of the second spring (38), and the fourth baffle (39) is movably sleeved on the outer side of the bent shaft (36).

8. The bending device for processing square aluminum profiles according to claim 7, characterized in that: A first motor (4) is fixedly connected to the outer side of the lower housing (2). An extrusion block (5) is fixedly connected to the output end above the first motor (4). A limiting block (6) is fixedly connected to the outer side of the extrusion block (5). A limiting track (7) is movably sleeved on the outer side of the limiting block (6). One side of the limiting track (7) is fixedly connected to the lower housing (2). A control panel (3) is fixedly connected to the outer side of the upper housing (1). The control panel (3) is electrically connected to the second motor (8), the third motor (22), the fourth motor (28), the fifth motor (33) and the first motor (4).

9. A method for using a bending device for processing square aluminum profiles, characterized in that: Adopt a bending device for processing square aluminum profiles as described in any one of claims 1-8, and the specific use steps are as follows: S1. When in use, place the lower housing (2) on a horizontal plane and connect to an external power source through the control panel (3). S2. When bending, place the aluminum profile on the two guide shafts (18). The first spring (20) generates a reaction force to push the second baffle (21) to extrude the aluminum profile, and the second baffle (21) and the first baffle (17) jointly position the aluminum profile. S3. Start the third motor (22). The worm gear (24) drives the guide shaft assembly to move through the second transmission rod (16), and the guide shaft assembly then drives the aluminum profile to the bending position. S4. When bending, start the fourth motor (28). The bent shaft (36) and the two guide shafts (18) jointly act to extrude and bend the aluminum profile. S5. When the bending is completed, start the first motor (4). The extrusion block (5) extrudes the aluminum profile during movement until the aluminum profile is pushed out of the guide shaft assembly.

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