CN113414310A

CN113414310A - Bending device for manufacturing aluminum alloy doors and windows

Info

Publication number: CN113414310A
Application number: CN202110486762.7A
Authority: CN
Inventors: 王娜
Original assignee: Individual
Current assignee: Chifeng Hongshan County Industry And Trade Co ltd
Priority date: 2021-05-02
Filing date: 2021-05-02
Publication date: 2021-09-21
Anticipated expiration: 2041-05-02
Also published as: CN113414310B

Abstract

The invention discloses a bending device for manufacturing aluminum alloy doors and windows, which comprises a workbench, wherein an installation block is connected to the top of the workbench in a sliding manner, a first adjusting mechanism for adjusting the movement of the installation block is arranged at the top of the workbench, an installation plate is fixedly connected to the top of the installation block, a connecting block is fixedly connected to the outer side wall of the installation plate, a connecting groove is formed in the outer side wall of the connecting block, a first clamping plate is connected to the inner side wall of the connecting groove in a sliding manner, a second adjusting mechanism for adjusting the movement of the first clamping plate is connected to the outer side wall of the first clamping plate, a moving opening is formed in the inner side wall of the connecting groove, and a second clamping plate is connected to the inner side wall of the moving opening in a sliding manner. According to the invention, the first moving block slides on the second lead screw by rotating the turntable, and the first moving block drives the second moving block and the first clamping plate to move towards the second clamping plate through the connecting rod, so that the device is adaptive to parts with different widths, and the applicability of the device is further improved.

Description

Bending device for manufacturing aluminum alloy doors and windows

Technical Field

The invention relates to the technical field of door and window processing auxiliary equipment, in particular to a bending device for manufacturing aluminum alloy doors and windows.

Background

Aluminum alloy door and window processing sheet metal component bending device is one kind and is used for aluminum alloy door and window course of working, carries out the auxiliary device of bending processing to its sheet metal component, and it has obtained extensive use in the field of door and window processing, and current aluminum alloy door and window processing sheet metal component bending device discovers in using, and it is inconvenient to bend the processing to the spare part of different length and different width, and practicality and suitability are relatively poor, are not convenient for use.

Disclosure of Invention

The invention aims to solve the problem that a bending device in the prior art is inconvenient to bend parts with different lengths and different widths, and provides the bending device for manufacturing aluminum alloy doors and windows.

In order to achieve the purpose, the invention adopts the following technical scheme:

a bending device for manufacturing aluminum alloy doors and windows comprises a workbench, wherein the top of the workbench is slidably connected with an installation block, the top of the workbench is provided with a first adjusting mechanism for adjusting the movement of the installation block, the top of the installation block is fixedly connected with an installation plate, the outer side wall of the installation plate is fixedly connected with a connecting block, the outer side wall of the connecting block is provided with a connecting groove, the inner side wall of the connecting groove is slidably connected with a first clamping plate, the outer side wall of the first clamping plate is connected with a second adjusting mechanism for adjusting the movement of the first clamping plate, the inner side wall of the connecting groove is provided with a moving port, the inner side wall of the moving port is slidably connected with a second clamping plate, the outer side wall of the second clamping plate is provided with a moving mechanism, the top of the workbench is fixedly connected with a fixed block, the outer side wall of the fixed block is fixedly connected with an installation frame, and the inner side wall of the installation frame is fixedly connected with a heating roller, the adjustable opening has been seted up to the workstation lateral wall, the adjustable opening is the arc setting, the adjustable opening inside wall is equipped with the carriage release lever, the fixed cover of carriage release lever lateral wall has connect the bending roll, the workstation bottom is equipped with the third adjustment mechanism that the regulation bending roll removed.

Preferably, first adjustment mechanism include with workstation top fixed connection's backup pad, the first motor of workstation lateral wall fixedly connected with, first motor output end fixedly connected with first lead screw, first motor one end lateral wall is kept away from to first lead screw runs through the installation piece and is connected with the rotation of backup pad lateral wall, first lead screw lateral wall and installation piece threaded connection, backup pad lateral wall fixedly connected with gag lever post, the gag lever post is kept away from backup pad one end lateral wall and runs through the first curb plate of installation piece and fixedly connected with, first curb plate lateral wall and workstation lateral wall fixed connection.

Preferably, the second adjustment mechanism includes the connecting plate with mounting panel lateral wall fixed connection, connecting plate lateral wall fixedly connected with second curb plate, the second curb plate lateral wall rotates and is connected with the second lead screw, second lead screw lateral wall threaded connection has first movable block, first movable block lateral wall and connecting plate lateral wall sliding connection, first movable block lateral wall rotates and is connected with the connecting rod, first movable block one end lateral wall is kept away from to the connecting rod and is rotated and be connected with the second movable block, second movable block lateral wall and first grip block lateral wall fixed connection, second curb plate one end lateral wall is kept away from to the second lead screw and runs through mounting panel and fixedly connected with carousel, carousel lateral wall fixedly connected with handle, second lead screw lateral wall is connected with stop gear.

Preferably, the moving mechanism comprises a baffle fixedly sleeved on the outer side wall of the second clamping plate, the inner side wall of the moving port is fixedly connected with a plurality of limiting blocks matched with the baffle, the outer side wall of the baffle close to one end of the connecting groove is contacted with the outer side wall of the limiting blocks, the outer side wall of the second clamping plate is fixedly connected with a plurality of connecting rods, the outer side wall of the connecting rod far away from one end of the second clamping plate is fixedly connected with a moving plate, a telescopic rod is fixedly connected between the moving plate and the connecting blocks, the outer side wall of the telescopic rod is sleeved with a first spring, the outer side walls at the two ends of the first spring are respectively abutted against and contacted with the outer side wall of the connecting block and the outer side wall of the moving plate, the outer side wall of, the mounting panel lateral wall fixedly connected with handle, the arm-tie is close to a plurality of second springs of mounting panel lateral wall fixedly connected with, the second spring is close to mounting panel one end lateral wall and mounting panel lateral wall fixed connection.

Preferably, the third adjustment mechanism includes the second motor with workstation bottom fixed connection, second motor output end fixedly connected with third lead screw, the third lead screw is kept away from second motor one end lateral wall and is rotated and be connected with the third curb plate, third curb plate lateral wall and workstation bottom fixed connection, third lead screw lateral wall screw thread has cup jointed the third movable block, third movable block lateral wall fixedly connected with pinion rack, the meshing of pinion rack lateral wall is connected with incomplete gear, incomplete gear lateral wall rotates with the workstation lateral wall to be connected, incomplete gear lateral wall fixedly connected with rotor plate, the carriage release lever lateral wall rotates with the rotor plate and cup joints.

Preferably, the limiting mechanism comprises an annular plate fixedly sleeved on the outer side wall of the second screw rod, the outer side wall of the annular plate is provided with a plurality of through openings, the outer side wall of the mounting plate is provided with a slot, a fixing rod is inserted into the inner side wall of the slot, and one end of the fixing rod, far away from the bottom of the slot, penetrates through openings corresponding to the slot and extends outwards.

Preferably, the outer side wall of the third screw rod is rotatably sleeved with two transverse plates, and the outer side walls of the transverse plates are fixedly connected with the bottom of the workbench.

Preferably, a center of rotation of the incomplete gear coincides with a center of a circle of the heating roller.

The invention has the beneficial effects that:

1. through rotating the turntable, the first moving block slides on the second lead screw, and the first moving block drives the second moving block and the first clamping plate to move towards the second clamping plate through the connecting rod, so that the device is adaptive to parts with different widths, and the applicability of the device is improved.

2. Through the positive and negative rotation of first motor for the installation piece carries out reciprocating motion on first lead screw, thereby adjusts the distance between connecting block and the warming mill, and then makes the work piece of device adaptation different length.

3. In the continuous machining process, the first clamping plate is fixed in position through the limiting mechanism, the limiting plate is pulled towards the direction far away from the supporting plate, the movable plate moves towards the direction far away from the connecting block under the action of the first spring, the movable plate drives the second clamping plate to move towards the direction of the first screw rod through the connecting rod, the clamping of a piece bent after machining is loosened, the piece bent is convenient to take out, and machining efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a bending apparatus for manufacturing aluminum alloy doors and windows according to the present invention;

FIG. 2 is a bottom view of a table of a bending apparatus for manufacturing aluminum alloy doors and windows according to the present invention;

FIG. 3 is a schematic view showing a connection structure of a second screw and a ring plate in the bending apparatus for manufacturing an aluminum alloy door/window according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 1;

fig. 5 is an enlarged view of the structure at B in fig. 1.

In the figure: 1. a work table; 2. mounting blocks; 3. mounting a plate; 4. connecting blocks; 5. connecting grooves; 6. a first clamping plate; 7. a second clamping plate; 8. a fixed block; 9. a mounting frame; 10. a heating roller; 11. a movable opening; 12. a travel bar; 13. bending rollers; 14. a support plate; 15. a first motor; 16. a first lead screw; 17. a limiting rod; 18. a first side plate; 19. a connecting plate; 20. a second side plate; 21. a second lead screw; 22. a first moving block; 23. a connecting rod; 24. a second moving block; 25. a turntable; 26. an annular plate; 27. fixing the rod; 28. a baffle plate; 29. a connecting rod; 30. moving the plate; 31. a telescopic rod; 32. a first spring; 33. a limiting plate; 34. pulling a plate; 35. a second spring; 36. a second motor; 37. a third screw rod; 38. a third side plate; 39. a third moving block; 40. a toothed plate; 41. an incomplete gear; 42. and rotating the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, a bending device for manufacturing aluminum alloy doors and windows comprises a workbench 1, wherein the top of the workbench 1 is connected with an installation block 2 in a sliding manner, and the top of the workbench 1 is provided with a first adjusting mechanism for adjusting the movement of the installation block 2.

Wherein, first adjustment mechanism include with 1 top fixed connection's of

workstation backup pad

14, 1 lateral wall fixedly connected with first motor 15 of workstation, first motor 15 is servo motor, for prior art, do not do here and describe repeatedly, first motor 15 output end fixedly connected with first lead screw 16, first lead screw 16 is kept away from 15 one end lateral walls of first motor and is run through installation piece 2 and rotate with the 14 lateral walls of backup pad and be connected, 16 lateral walls of first lead screw and 2 threaded connection of installation piece, 14 lateral wall fixedly connected with gag lever post 17 of backup pad, 14 one end lateral walls of backup pad are kept away from to gag lever post 17 and are run through installation piece 2 and fixedly connected with

first curb plate

18, 18 lateral walls of first curb plate and 1 lateral wall fixed connection of workstation.

2 top fixedly connected with mounting panel 3 of installation piece, 3 lateral walls fixedly connected with connecting block 4 of mounting panel, spread groove 5 has been seted up to 4 lateral walls of connecting block, and 5 inside walls sliding connection of spread groove have

first grip block

6, and 6 lateral walls of first grip block are connected with the second adjustment mechanism who adjusts 6 removals of first grip block.

Wherein, the second adjustment mechanism includes the connecting plate 19 with 3 lateral walls fixed connection of mounting panel, 19 lateral walls fixedly connected with second lateral plate 20 of connecting plate, 20 lateral walls of second lateral plate rotate and are connected with second

lead screw

21, 21 lateral walls threaded connection of second lead screw has first

movable block

22, 22 lateral walls of first movable block and 19 lateral walls sliding connection of connecting plate, 22 lateral walls of first movable block rotate and are connected with connecting

rod

23, 22 one end lateral walls of first movable block are kept away from to connecting rod 23 and are rotated and be connected with second

movable block

24, 24 lateral walls of second movable block and 6 lateral walls fixed connection of first grip block, 20 one end lateral walls of second lateral plate are kept away from to second lead screw 21 and run through mounting panel 3 and fixedly connected with carousel 25, carousel 25 lateral wall fixedly connected with handle, 21 lateral walls of second lead screw are connected with stop gear.

Wherein, stop gear is including fixed cup joint annular plate 26 on the lateral wall of second lead screw 21, and a plurality of through openings have been seted up to annular plate 26 lateral wall, and the slot has been seted up to mounting panel 3 lateral wall, and the slot inside wall is inserted and is equipped with dead lever 27, and dead lever 27 keeps away from the interior bottom one end of slot and passes the through opening that corresponds with the slot and outwards extend.

The inner side wall of the connecting groove 5 is provided with a moving port, the inner side wall of the moving port is connected with a second clamping plate 7 in a sliding way, the outer side wall of one end, opposite to the first clamping plate 6 and the second clamping plate 7, of the first clamping plate and the second clamping plate 7 is fixedly connected with a rubber pad, so that the surface of a workpiece is prevented from being damaged, the outer side wall of the second clamping plate 7 is provided with a moving mechanism, the moving mechanism comprises a baffle 28 fixedly sleeved on the outer side wall of the second clamping plate 7, the inner side wall of the moving port is fixedly connected with a plurality of limiting blocks matched with the baffle 28, the outer side wall of one end, close to the connecting groove 5, of the baffle 28 is contacted with the outer side wall of the limiting block, the outer side wall of the second clamping plate 7 is fixedly connected with a plurality of connecting rods 29, the outer side wall of one end, far away from the second clamping plate 7, of the connecting rods 29 is fixedly connected with a moving plate 30, a telescopic rod 31 is fixedly connected between the moving plate 30 and the connecting block 4, the outer side wall of the telescopic rod 31 is sleeved with a first spring 32, the outer side wall of the moving plate 32 is respectively contacted with the outer side wall of the connecting block 4 and the outer side wall of the moving plate 30 tightly, the installing port has been seted up to 3 lateral walls of mounting panel, and lateral wall sliding connection has limiting plate 33 in the installing port, and the limiting plate 33 lateral wall supports the tight contact with the 30 lateral wall of movable plate, and limiting plate 33 lateral wall fixedly connected with arm-tie 34, the 34 lateral wall fixedly connected with handle of arm-tie, and arm-tie 34 are close to 3 lateral wall fixedly connected with a plurality of second springs 35 of mounting panel, and second spring 35 is close to 3 one end lateral walls of mounting panel and 3 lateral wall fixed connection of mounting panel.

1 top fixedly connected with fixed block 8 of workstation, 8 lateral wall fixedly connected with mounting bracket 9 of fixed block, 9 inside wall fixedly connected with warming mill 10 of mounting bracket, be equipped with heating element (not shown in the drawing) in the warming mill 10, for prior art, give unnecessary details here, activity mouth 11 has been seted up to 1 lateral wall of workstation, activity mouth 11 is the arc setting, activity mouth 11 inside wall is equipped with carriage release lever 12, the fixed coupling of 12 lateral walls of carriage release lever has bending

roll

13, 1 bottom of workstation is equipped with the third adjustment mechanism that adjusts bending roll 13 and remove.

Wherein, the third adjusting mechanism comprises a second motor 36 fixedly connected with the bottom of the workbench 1, the second motor 36 is a servo motor, and is not described in detail herein, the output end of the second motor 36 is fixedly connected with a third lead screw 37, the outer side wall of one end of the third lead screw 37 far away from the second motor 36 is rotatably connected with a third side plate 38, the outer side wall of the third side plate 38 is fixedly connected with the bottom of the workbench 1, the outer side wall of the third lead screw 37 is sleeved with a third moving block 39 in a threaded manner, the outer side wall of the third lead screw 37 is rotatably sleeved with two transverse plates, the outer side walls of the two transverse plates are fixedly connected with the bottom of the workbench 1 to limit the third toothed plate 39, so as to avoid the separation of the toothed plate 40 and the incomplete gear 41, the outer side wall of the third moving block 39 is fixedly connected with a toothed plate 40, the outer side wall of the toothed plate 40 is engaged with the incomplete gear 41, and the outer side wall of the incomplete gear 41 is rotatably connected with the outer side wall of the workbench 1, the center of the rotation circle of the incomplete gear 41 coincides with the center of the circle of the heating roller 10, so that the moving rod 12 moves in the shape of the movable opening 11 as a moving track, the rotating plate 42 is fixedly connected to the outer side wall of the incomplete gear 41, and the outer side wall of the moving rod 12 is rotatably sleeved with the rotating plate 42.

The working principle is as follows: through the positive and negative rotation of first motor 15, installation piece 2 is reciprocating motion on first lead screw 16, thereby adjust the distance between connecting block 4 and the warming mill 10, thereby make the work piece of the different length of device adaptation, will wait to bend the work piece and place between first grip block 6 and second grip block 7, clockwise rotation carousel 25, make second lead screw 21 rotate, thereby make first movable block 22 remove to being close to carousel 25 direction, first movable block 22 drives second movable block 24 and first grip block 6 through connecting rod 23 and removes to second grip block 7 direction, thereby it fixes to wait to bend the work piece, after the work piece is fixed, insert dead lever 27 in through-hole and the slot, thereby avoid second lead screw 21 to rotate, make first grip block 6 position fix.

The second motor 36 is started, the second motor 36 drives the third moving block 39 to move towards the second motor 36, so that the toothed plate 40 moves, the incomplete gear 41 is driven to rotate through the toothed plate 40, the incomplete gear 41 drives the moving rod 12 to rotate through the rotating plate 42, the bending roller 13 rotates to bend a workpiece, the heating roller 10 is started to heat the workpiece, the workpiece is easy to bend, and the bending efficiency is improved.

To keeping away from backup pad 14 direction pulling limiting plate 33, make the movable plate 30 remove to keeping away from 4 directions of connecting block under the effect of first spring 32, thereby make the movable plate 30 drive second grip block 7 through connecting rod 29 and remove to 16 directions of first lead screw, thereby loosen the centre gripping to the piece of bending after processing, be convenient for take out the piece of bending, machining efficiency is improved, to wait to process the work piece again and put into between first grip block 6 and the second grip block 7, promote the movable plate 30 and remove to 4 directions of connecting block, limiting plate 33 resets under the effect of second spring 35, fix second grip block 7 position, so that carry out next processing.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A bending device for manufacturing aluminum alloy doors and windows comprises a workbench (1) and is characterized in that the top of the workbench (1) is connected with an installation block (2) in a sliding manner, the top of the workbench (1) is provided with a first adjusting mechanism for adjusting the movement of the installation block (2), the top of the installation block (2) is fixedly connected with an installation plate (3), the outer side wall of the installation plate (3) is fixedly connected with a connecting block (4), the outer side wall of the connecting block (4) is provided with a connecting groove (5), the inner side wall of the connecting groove (5) is connected with a first clamping plate (6) in a sliding manner, the outer side wall of the first clamping plate (6) is connected with a second adjusting mechanism for adjusting the movement of the first clamping plate (6), the inner side wall of the connecting groove (5) is provided with a moving port, the inner side wall of the moving port is connected with a second clamping plate (7) in a sliding manner, and the outer side wall of the second clamping plate (7) is provided with a moving mechanism, workstation (1) top fixedly connected with fixed block (8), fixed block (8) lateral wall fixedly connected with mounting bracket (9), mounting bracket (9) inside wall fixedly connected with warming mill (10), activity mouth (11) have been seted up to workstation (1) lateral wall, activity mouth (11) are the arc setting, activity mouth (11) inside wall is equipped with carriage release lever (12), the fixed cover of carriage release lever (12) lateral wall has connect bending roll (13), workstation (1) bottom is equipped with the third adjustment mechanism that adjusts bending roll (13) and remove.

2. The bending device for manufacturing aluminum alloy doors and windows according to claim 1, the first adjusting mechanism comprises a supporting plate (14) fixedly connected with the top of the workbench (1), the outer side wall of the workbench (1) is fixedly connected with a first motor (15), the output end of the first motor (15) is fixedly connected with a first screw rod (16), the outer side wall of one end of the first screw rod (16) far away from the first motor (15) penetrates through the mounting block (2) and is rotationally connected with the outer side wall of the support plate (14), the outer side wall of the first screw rod (16) is in threaded connection with the mounting block (2), the outer side wall of the support plate (14) is fixedly connected with a limiting rod (17), the outer side wall of one end of the limiting rod (17) far away from the supporting plate (14) penetrates through the mounting block (2) and is fixedly connected with a first side plate (18), the outer side wall of the first side plate (18) is fixedly connected with the outer side wall of the workbench (1).

3. The bending device for manufacturing the aluminum alloy doors and windows according to claim 1, wherein the second adjusting mechanism comprises a connecting plate (19) fixedly connected with the outer side wall of the mounting plate (3), the outer side wall of the connecting plate (19) is fixedly connected with a second side plate (20), the outer side wall of the second side plate (20) is rotatably connected with a second lead screw (21), the outer side wall of the second lead screw (21) is in threaded connection with a first movable block (22), the outer side wall of the first movable block (22) is in sliding connection with the outer side wall of the connecting plate (19), the outer side wall of the first movable block (22) is rotatably connected with a connecting rod (23), the outer side wall of one end of the connecting rod (23) far away from the first movable block (22) is rotatably connected with a second movable block (24), and the outer side wall of the second movable block (24) is fixedly connected with the outer side wall of the first clamping plate (6), the mounting panel (3) and fixedly connected with carousel (25) are run through to second curb plate (20) one end lateral wall is kept away from in second lead screw (21), carousel (25) lateral wall fixedly connected with handle, second lead screw (21) lateral wall is connected with stop gear.

4. The bending device for manufacturing aluminum alloy doors and windows according to claim 1, wherein the moving mechanism comprises a baffle (28) fixedly sleeved on the outer side wall of the second clamping plate (7), the inner side wall of the moving mechanism is fixedly connected with a plurality of limiting blocks matched with the baffle (28), the baffle (28) is close to the outer side wall of one end of the connecting groove (5) and contacts with the outer side wall of the limiting block, the outer side wall of the second clamping plate (7) is fixedly connected with a plurality of connecting rods (29), the outer side wall of one end of the connecting rod (29) far away from the second clamping plate (7) is fixedly connected with a moving plate (30), a telescopic rod (31) is fixedly connected between the moving plate (30) and the connecting block (4), the outer side wall of the telescopic rod (31) is sleeved with a first spring (32), the outer side walls at two ends of the first spring (32) respectively abut against the outer side wall of the connecting block (4) and the outer side wall of the connecting block (30), the installing port has been seted up to mounting panel (3) lateral wall, the inside wall sliding connection of installing port has limiting plate (33), limiting plate (33) lateral wall supports the tight contact with movable plate (30) lateral wall, limiting plate (33) lateral wall fixedly connected with arm-tie (34), arm-tie (34) lateral wall fixedly connected with handle, arm-tie (34) are close to a plurality of second springs (35) of mounting panel (3) lateral wall fixedly connected with, second spring (35) are close to mounting panel (3) one end lateral wall and mounting panel (3) lateral wall fixed connection.

5. The bending device for manufacturing the aluminum alloy doors and windows according to claim 1, wherein the third adjusting mechanism comprises a second motor (36) fixedly connected with the bottom of the workbench (1), a third lead screw (37) is fixedly connected with an output end of the second motor (36), a third side plate (38) is rotatably connected to an outer side wall of one end, away from the second motor (36), of the third lead screw (37), an outer side wall of the third side plate (38) is fixedly connected with the bottom of the workbench (1), a third moving block (39) is sleeved on an outer side wall of the third lead screw (37) in a threaded manner, a toothed plate (40) is fixedly connected to an outer side wall of the third moving block (39), an incomplete gear (41) is connected to an outer side wall of the toothed plate (40) in a meshed manner, an outer side wall of the incomplete gear (41) is rotatably connected with an outer side wall of the workbench (1), and a rotating plate (42) is fixedly, the outer side wall of the moving rod (12) is rotatably sleeved with the rotating plate (42).

6. The bending device for manufacturing aluminum alloy doors and windows as claimed in claim 3, wherein the limiting mechanism comprises an annular plate (26) fixedly sleeved on the outer side wall of the second screw rod (21), the outer side wall of the annular plate (26) is provided with a plurality of through holes, the outer side wall of the mounting plate (3) is provided with a slot, the inner side wall of the slot is inserted with a fixing rod (27), and one end of the fixing rod (27) far away from the inner bottom of the slot penetrates through the through hole corresponding to the slot and extends outwards.

7. The bending device for manufacturing the aluminum alloy doors and windows according to claim 5, wherein the outer side wall of the third screw rod (37) is rotatably sleeved with two transverse plates, and the outer side walls of the two transverse plates are fixedly connected with the bottom of the workbench (1).

8. The bending device for manufacturing aluminum alloy doors and windows according to claim 5, wherein the center of rotation of the incomplete gear (41) coincides with the center of the heating roller (10).