Precise flattening device for aluminum plate

Abstract

The invention belongs to the technical field of metal plate machining, and discloses an aluminum plate precision flattening device which comprises a flattening seat assembly, flattening arm assemblies are arranged on the two sides of the flattening seat assembly, a plurality of flattening platform assemblies are longitudinally and rotationally arranged between the two flattening arm assemblies, follow-up arm assemblies are arranged in the flattening platform assemblies, and the follow-up arm assemblies are arranged on the two sides of the flattening seat assembly. Through right swing of the two sets of flattening arm assemblies, the multiple sets of flattening platform assemblies between the two sets of flattening arm assemblies form an upper-pressing-down stacked type aluminum plate synchronous flattening structure, and along with right swing of the flattening arm assemblies, the inner discharging platform on each set of flattening platform assembly automatically retracts into the outer pressing platform; therefore, it is guaranteed that the aluminum plate at the top end of the inner discharging table on each pressing platform assembly can smoothly return to the flattening gap station between the two pressing platform assemblies, and in this way, multi-station flattening machining and automatic in-place during multi-station aluminum plate flattening are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal plate processing, and in particular relates to a precision flattening device for an aluminum plate. Background Art

[0002] Aluminum plates are easily deformed during processing. The existing technology uses a flattening machine to flatten the aluminum plates, that is, the aluminum plates are flattened by rolling multiple rollers. However, the existing technology has the following problems: first, if the aluminum plate is flattened by a roller, this processing time is short, and the aluminum plate is easily deformed again due to the stress of its plate body. Therefore, a flattening and holding device that can last for a long time is needed to replace the roller flattening. Second, the existing roller flattening processes the aluminum plates one by one, which cannot achieve synchronous flattening of multiple stations. Therefore, it is urgent to solve the above problems. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides an aluminum plate precision flattening device, which has the characteristics of convenient use and high followability.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precision flattening device for aluminum plates, comprising a flattening seat assembly, flattening arm assemblies are arranged on both sides of the flattening seat assembly, multiple groups of pressing platform assemblies are longitudinally rotated between two groups of the flattening arm assemblies, and follower arm assemblies are arranged inside the pressing platform assemblies. Through the rightward swinging of the two groups of the flattening arm assemblies, multiple groups of the pressing platform assemblies form a superimposed flattening structure on the flattening seat assembly, and through the leftward swinging of the two groups of the flattening arm assemblies, multiple groups of the pressing platform assemblies form a material discharge structure for releasing the superimposed flattening on the flattening seat assembly. In the leftward swinging process of releasing the superposition, multiple groups of the pressing platform assemblies form a follow-up push-out type offset plate discharge platform structure.

[0005] In a preferred embodiment of an aluminum plate precision flattening device, the flattening seat assembly comprises a U-shaped frame, both ends of the U-shaped frame are fixedly provided with mounting feet, and both inner walls of the U-shaped frame are fixedly provided with fixed pulleys, and both outer walls of the U-shaped frame are rotatably provided with hydraulic cylinders; The flattening arm assembly comprises an active flattening arm and a plurality of auxiliary flattening arms, the bottoms of the auxiliary flattening arms and the active flattening arms are fixedly provided with flattening arm main shafts, and the tops of the auxiliary flattening arms and the active flattening arms are provided with a plurality of node pillow blocks, and the bottom of the active flattening arm away from the node pillow blocks is fixedly provided with a driving side arm; The pressing platform assembly includes an external pressing platform and an internal unloading platform, a platform groove is provided inside the external pressing platform, side rails with grooves are fixedly provided on both sides of the platform groove, and an end groove is provided on the end of the platform groove away from the internal unloading platform, side sliding grooves are provided on both sides of the internal unloading platform, sliding wheels are provided on the top and bottom of the side sliding grooves, and a traction end frame is fixedly provided on the end of the internal unloading platform close to the external pressing platform; The follower arm assembly includes a double-threaded screw, an end shaft is fixedly provided on the end of the rod body of the double-threaded screw, two movable pulleys are fixedly provided on the end shaft, two internally threaded seats are movably provided on the rod body of the double-threaded screw, a sliding block is fixedly provided on the side of the internally threaded seat away from the scissor arm, and a scissor arm is hingedly provided between the top and bottom ends of the two internally threaded seats.

[0006] In a preferred embodiment of an aluminum plate precision flattening device, the inner unloading table slides in a table groove, and the inner unloading table forms a movable table structure for inward contraction and outward unloading in the external pressing platform, and the sliding wheels in the side sliding grooves are guided and rolled on the grooved side rails.

[0007] In a preferred embodiment of a precision flattening device for aluminum plates, the end shaft is rotatably connected on both sides of the external pressure platform close to the end groove, the movable pulley is located outside the external pressure platform, the sliding block slides in the end groove, and the distal arm body of the scissor arm is hinged on the traction end frame body.

[0008] In a preferred embodiment of a precision flattening device for aluminum plates, the bottom of the auxiliary flattening arm and the active flattening arm are both rotatably arranged on the inner wall of the U-shaped frame through the flattening arm main shaft and bearings, the top of the hydraulic cylinder is rotatably connected to the driving side arm, and multiple groups of flattening platform assemblies are longitudinally staggered and arranged between the two groups of flattening arm assemblies, and the multiple node shaft platforms on the auxiliary flattening arm and the active flattening arm are rotatably arranged on the frames on both sides of the multiple external flattening platforms.

[0009] In a preferred embodiment of a precision flattening device for aluminum plates, the end shaft rod on the follower arm assembly at one end of each group of the pressing platform assemblies near the end groove is rotatably arranged in the node shaft platform of the active flattening arm, and the movable pulley is arranged outside the active flattening arm. The multiple groups of movable pulleys at the same end of the follower arm assemblies are connected in series through belt transmission.

[0010] In a preferred embodiment of an aluminum plate precision flattening device, the fixed pulley is fixed on the inner wall of the U-shaped frame, a transmission belt is sleeved between the fixed pulley and the movable pulley on the outer side of the bottom node pillow block of the active flattening arm, and the diameter of the fixed pulley is larger than the diameter of the movable pulley.

[0011] In a preferred embodiment of a precision flattening device for aluminum plates, the aluminum plate is placed on the inner discharge table. When multiple groups of the pressing platform assemblies swing to the right to form a superimposed flattening structure, the bottom end surface of the outer pressing platform on the adjacent top pressing platform assembly forms a superimposed downward pressing flattening structure with the top end surface of the inner discharge table on the adjacent bottom pressing platform assembly.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: multiple groups of press platform assemblies form a superimposed flattening structure that swings to the right on the flattening seat assembly through two groups of flattening arm assemblies, and multiple groups of press platform assemblies form a discharge structure that swings to the left on the flattening seat assembly to release the superimposed flattening. In the leftward swinging process of releasing the superposition, multiple groups of press platform assemblies form a follow-up push-out type offset plate release platform structure. The present invention is in two modes. One is that the present invention realizes the right swing of the two groups of flattening arm assemblies through the inward traction of the hydraulic cylinder. At this time, the multiple groups of press platform assemblies between the two groups of flattening arm assemblies form a superimposed aluminum plate synchronous flattening structure that presses up and down, and at this time, with the right swing of the flattening arm assembly, the inner discharge platform on each group of press platform assemblies automatically retracts into the outer press platform, thereby ensuring that the aluminum plate on the top of the inner discharge platform on each group of press platform assemblies can be It smoothly returns to the flattening gap station between the two groups of press platform assemblies. The above process occurs synchronously through the inward traction of the hydraulic cylinder. Secondly, the present invention realizes the left swing of the two groups of flattening arm assemblies through the extension and promotion of the hydraulic cylinder. At this time, the multiple groups of press platform assemblies between the two groups of flattening arm assemblies form a synchronous flattening structure for releasing the upper and lower aluminum plates, and at this time, with the left swing of the flattening arm assembly, the inner discharge table on each group of press platform assemblies automatically extends from the outer press platform, thereby ensuring that the aluminum plate on the top of the inner discharge table on each group of press platform assemblies can be pushed out from the gap between the two groups of press platform assemblies, and this pushing out is a staggered structure, that is, the multiple inner discharge tables on the multiple groups of press platform assemblies are longitudinally staggered. In this way, the staggered material picking and staggered material discharge of the aluminum plates on the multiple inner discharge tables are convenient. It should be emphasized that the above process occurs synchronously through the extension and promotion of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A perspective view of the present invention; Figure 2 A three-dimensional diagram of another viewing angle of the present invention; Figure 3 It is a front view of the present invention; Figure 4 An exploded view of the present invention; Figure 5 A three-dimensional diagram of the flattening seat assembly of the present invention; Figure 6 is a three-dimensional diagram of a flattening arm assembly of the present invention; Figure 7 It is a three-dimensional diagram of the press platform assembly and the follower arm assembly of the present invention; Figure 8 A three-dimensional diagram of a press platform assembly of the present invention; Fig. 9 It is a three-dimensional view of the follower arm assembly of the present invention.

[0014] In the figure: 100, flattening seat assembly; 101, U-shaped frame; 102, mounting foot; 103, fixed pulley; 104, hydraulic cylinder; 200, flattening arm assembly; 201, auxiliary flattening arm; 202, active flattening arm; 203, flattening arm main shaft; 204, node shaft platform; 205, driving side arm; 300, pressure platform assembly; 301, external pressure platform; 302, platform groove; 303, end groove; 304, grooved side rail; 305, traction end frame; 306, internal discharge platform; 307, side sliding groove; 308, sliding wheel; 400, follower arm assembly; 401, double-threaded screw; 402, internally threaded seat; 403, sliding block; 404, movable pulley; 405, end shaft; 406, scissor arm. DETAILED DESCRIPTION

[0015] 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.

[0016] See also Figure 1-Figure 9 As shown, the present invention provides a precision flattening device for aluminum plates, including a flattening seat assembly 100, flattening arm assemblies 200 are arranged on both sides of the flattening seat assembly 100, multiple groups of flattening platform assemblies 300 are longitudinally rotated between the two groups of flattening arm assemblies 200, and a follower arm assembly 400 is arranged inside the flattening platform assembly 300. Through the rightward swing of the two groups of flattening arm assemblies 200, the multiple groups of flattening platform assemblies 300 form a superimposed flattening structure on the flattening seat assembly 100, and through the leftward swing of the two groups of flattening arm assemblies 200, the multiple groups of flattening platform assemblies 300 form a material discharge structure for releasing the superimposed flattening on the flattening seat assembly 100. In the leftward swinging process of releasing the superposition, a follow-up push-out type offset plate discharge platform structure is formed on the multiple groups of flattening platform assemblies 300.

[0017] In a preferred embodiment, please refer to Figure 5 The flattening seat assembly 100 includes a U-shaped frame 101, both ends of the U-shaped frame 101 are fixedly provided with mounting feet 102, and both sides of the inner wall of the U-shaped frame 101 are fixedly provided with fixed pulleys 103, and both sides of the outer wall of the U-shaped frame 101 are rotatably provided with hydraulic cylinders 104.

[0018] In a preferred embodiment, please refer to Figure 6The flattening arm assembly 200 includes an active flattening arm 202 and multiple auxiliary flattening arms 201. The auxiliary flattening arm 201 and the active flattening arm 202 are both fixedly provided with a flattening arm main shaft 203 at the bottom, and multiple node shaft platforms 204 are both provided at the top of the auxiliary flattening arm 201 and the active flattening arm 202. A driving side arm 205 is fixedly provided at the bottom of the active flattening arm 202 away from the node shaft platform 204. The bottoms of the auxiliary flattening arm 201 and the active flattening arm 202 are both rotatably arranged on the inner wall of the U-shaped frame 101 through the flattening arm main shaft 203 and the bearing. The top of the hydraulic cylinder 104 is rotatably connected to the driving side arm 205. Multiple groups of flattening platform assemblies 300 are longitudinally staggered and arranged between the two groups of flattening arm assemblies 200. The multiple node shaft platforms 204 on the auxiliary flattening arm 201 and the active flattening arm 202 are all rotatably arranged on the frames on both sides of the multiple external flattening platforms 301.

[0019] In a preferred embodiment, please refer to Figure 8 The pressing platform assembly 300 includes an external pressing platform 301 and an internal material discharge platform 306. A platform groove 302 is provided inside the external pressing platform 301. Side rails 304 with grooves are fixedly provided on both sides of the platform groove 302. An end groove 303 is provided at one end of the platform groove 302 away from the internal material discharge platform 306. Side sliding grooves 307 are provided on both sides of the internal material discharge platform 306. Sliding wheels 308 are provided at the top and bottom of the side sliding grooves 307. A traction end frame 305 is fixedly provided at one end of the internal material discharge platform 306 close to the external pressing platform 301. The internal material discharge platform 306 is on the platform. The inner material discharge table 306 slides in the groove 302, and the inner material discharge table 306 forms a movable table structure that shrinks inward and flattens outward in the outer pressure platform 301. The sliding wheel 308 in the side sliding groove 307 rolls on the grooved side rail 304. The aluminum plate is placed on the inner material discharge table 306. When multiple groups of pressure platform assemblies 300 swing to the right to form a superimposed flattening structure, the bottom end surface of the outer pressure platform 301 on the adjacent top pressure platform assembly 300 forms a superimposed downward pressure flattening structure with the top end surface of the inner material discharge table 306 on the adjacent bottom pressure platform assembly 300.

[0020] In a preferred embodiment, please refer to Fig. 9The follower arm assembly 400 includes a double-threaded screw 401, an end shaft 405 is fixedly provided on the end of the rod body of the double-threaded screw 401, and two movable pulleys 404 are fixedly provided on the end shaft 405. Two internal threaded seats 402 are movably provided on the rod body of the double-threaded screw 401, and a sliding block 403 is fixedly provided on the side of the internal threaded seat 402 away from the scissor arm 406. The top and bottom ends of the two internal threaded seats 402 are hingedly provided with scissor arms 406. The end shaft 405 is rotatably connected to the two sides of the external pressure platform 301 close to the end groove 303, the movable pulley 404 is located on the outside of the external pressure platform 301, and the sliding block 403 slides in the end groove 303. The distal arm body of the arm 406 is hinged on the traction end frame 305, and the end shaft rod 405 on the follower arm assembly 400 near one end of the end groove of each group of pressure platform assembly 300 is rotatably set in the node shaft platform 204 of the active flattening arm 202, and the movable pulley 404 is set outside the active flattening arm 202. The movable pulleys 404 at the same end of multiple groups of follower arm assemblies 400 are connected by belt series transmission, and the fixed pulley 103 is fixed on the inner wall of the U-shaped frame 101. A transmission belt is sleeved between the fixed pulley 103 and the movable pulley 404 on the outer side of the bottom node shaft platform 204 of the active flattening arm 202, and the diameter of the fixed pulley 103 is larger than the diameter of the movable pulley 404.

[0021] The working principle of the present invention is as follows: when the present invention is used, when the aluminum plate is flattened, the aluminum plate is placed in the inner discharge table 306 on each group of the pressing platform assembly 300. The inner discharge tables 306 on the multiple groups of the pressing platform assemblies 300 of the present invention form a multi-station synchronous flattening station structure to achieve synchronous flattening of multiple aluminum plates at multiple stations. During flattening, the flattening arm assembly 200 is swung to the right through the contraction and traction of the hydraulic cylinder 104. When the flattening arm assembly 200 swings to the right, the multiple groups of the pressing platform assemblies 300 form a superimposed approaching flattening structure between the two groups of the flattening arm assemblies 200. During flattening, the bottom end surface of the outer pressing platform 301 on the upper layer of the pressing platform assembly 300 forms a superimposed downward pressing flattening structure with the top end surface of the inner discharge table 306 on the adjacent lower layer of the pressing platform assembly 300. That is, when the flattening arm assembly 200 swings to the right, the multiple groups of pressing platform assemblies 300 are superimposed and flattened. Specifically, the upper pressing platform assembly 300 is superimposed and flattened on the lower pressing platform assembly 300, and this flattening structure is multi-stage and multi-station synchronously carried out. The aluminum plate can be subjected to multi-station synchronous flattening treatment, and the multi-station superimposed flattening time can be increased synchronously at the same time. By synchronously increasing the flattening time, the plate body stress of the aluminum plate on the multi-station is synchronously changed to avoid subsequent stress deformation of the aluminum plate. It should be emphasized that when the present invention performs multi-station synchronous flattening treatment, the follow-up driving structure is used to make the aluminum plate material outside the multi-station follow up and shrink into the flattening gap between the two groups of pressing platform assemblies 300, that is, the compaction and placement of multiple aluminum plates is achieved by following the in-place processing, and its specific follow-up working method is shown below.

[0022] On the basis of the above, when the flattening is completed, the flattening arm assembly 200 is swung to the left by extending the hydraulic cylinder 104. At this time, the multiple groups of flattening platform assemblies 300 form a left-swinging opening structure on the flattening arm assembly 200, that is, the multiple groups of flattening platform assemblies 300 form a left-swinging un-superimposed flattening structure on the flattening seat assembly 100 through two groups of flattening arm assemblies 200. When the flattening arm assembly 200 swings to the left, at this time, since the fixed pulley 103 is fixed, each group of flattening platform assemblies 300 The follower arm assembly 400 is rotatably arranged at each node shaft platform 204 position of the active flattening arm 202. At this time, when the flattening arm assembly 200 swings to the left, that is, when the active flattening arm 202 swings to the left, since a belt is arranged between the fixed pulley 103 and the movable pulley 404 on the bottom node shaft platform 204 of the active flattening arm 202, and the fixed pulley 103 is fixed, the movable belt on the bottom node shaft platform 204 of the active flattening arm 202 is driven by the swing of the active flattening arm 202. The pulley 404 swings to the left, and the diameter of the fixed pulley 103 is larger than that of the movable pulley 404, that is, when the movable pulley 404 revolves around the fixed pulley 103, when the movable pulley 404 revolves around the fixed pulley 103, the movable pulley 404 on the bottom node of the active flattening arm 202 will form a self-rotating structure, and the self-rotation of the movable pulley 404 drives the self-rotation of the double-threaded screw 401, and the double-threaded screw 401 drives the two internally threaded seats 402 When the flattening arm assembly 200 swings to the left, an open structure for releasing the flattening is formed between the multiple groups of press platform assemblies 300. At the same time, the multiple internal discharge tables 306 inside the multiple groups of press platform assemblies 300 are synchronously extended outward to form a staggered carrier structure. In this way, it is convenient to take out the aluminum plates on the multiple internal discharge tables 306 after flattening and to discharge the aluminum plates to be flattened again.

[0023] On the basis of the above, it needs to be explained that when the flattening arm assembly 200 swings to the right, the multiple groups of pressing platform assemblies 300 between the two groups of flattening arm assemblies 200 form a superimposed flattening structure, and the multiple internal material discharge platforms 306 on the multiple groups of pressing platform assemblies 300 automatically form a carrier platform structure that retracts into the outward pressing platform 301, and its working principle is achieved by being opposite to the action of the above-mentioned follower arm assembly 400.

[0024] In summary, the present invention is in two modes. One is that the present invention realizes the right swing of the two groups of flattening arm assemblies 200 through the inward traction of the hydraulic cylinder 104. At this time, the multiple groups of pressing platform assemblies 300 between the two groups of flattening arm assemblies 200 form a synchronous flattening structure of superimposed aluminum plates pressing up and down, and at this time, with the right swing of the flattening arm assembly 200, the inner discharge platform 306 on each group of pressing platform assemblies 300 automatically retracts into the outer pressure platform 301, thereby ensuring that the aluminum plate at the top of the inner discharge platform 306 on each group of pressing platform assemblies 300 can be smoothly returned to the flattening gap station between the two groups of pressing platform assemblies 300. The above process occurs synchronously through the inward traction of the hydraulic cylinder 104. The second is that the present invention realizes the left swing of the two groups of flattening arm assemblies 200 through the extension and promotion of the hydraulic cylinder 104. At this time, the two groups of flattening arm assemblies 2 00, form a synchronous flattening structure for releasing the aluminum plates from the upper part away from the lower part, and at this time, with the left swing of the flattening arm assembly 200, the inner discharge platform 306 on each group of the press platform assembly 300 automatically extends from the outer press platform 301, thereby ensuring that the aluminum plates on the top of the inner discharge platform 306 on each group of the press platform assembly 300 can be pushed out from the gap between the two groups of the press platform assemblies 300, and this pushing out is a staggered structure, that is, the multiple inner discharge platforms 306 on the multiple groups of press platform assemblies 300 are longitudinally staggered. In this way, the staggered material collection and staggered material discharge of the aluminum plates on the multiple inner discharge platforms 306 are convenient. It should be emphasized that the above process occurs synchronously through the extension and push of the hydraulic cylinder 104, and the follow-up change and conversion of the above two groups of modes can be realized through the inward traction and outward push of the hydraulic cylinder.

[0025] 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 precision flattening device for an aluminum plate, comprising a flattening seat assembly (100), characterized in that: Flattening arm assemblies (200) are arranged on both sides of the flattening seat assembly (100); a plurality of flattening platform assemblies (300) are arranged between two groups of flattening arm assemblies (200) for longitudinal rotation; a follower arm assembly (400) is arranged inside the flattening platform assembly (300); through the rightward swinging of the two groups of flattening arm assemblies (200), the plurality of flattening platform assemblies (300) form a superimposed flattening structure on the flattening seat assembly (100); through the leftward swinging of the two groups of flattening arm assemblies (200), the plurality of flattening platform assemblies (300) form a material discharge structure for releasing the superimposed flattening on the flattening seat assembly (100); and in the process of releasing the superimposed flattening by swinging to the left, a follower-pushing type dislocation plate discharge platform structure is formed on the plurality of flattening platform assemblies (300).

2. The aluminum plate precision flattening device according to claim 1, characterized in that: The flattening seat assembly (100) comprises a U-shaped frame (101), both ends of the U-shaped frame (101) are fixedly provided with mounting feet (102), both inner walls of the two sides of the U-shaped frame (101) are fixedly provided with fixed pulleys (103), and both outer walls of the two sides of the U-shaped frame (101) are rotatably provided with hydraulic cylinders (104); The flattening arm assembly (200) comprises an active flattening arm (202) and a plurality of auxiliary flattening arms (201); a flattening arm main shaft (203) is fixedly arranged at the bottom of each of the auxiliary flattening arm (201) and the active flattening arm (202); a plurality of node axle platforms (204) are arranged at the top of each of the auxiliary flattening arm (201) and the active flattening arm (202); a driving side arm (205) is fixedly arranged at the bottom of the active flattening arm (202) on a side away from the node axle platforms (204); The pressing platform assembly (300) comprises an external pressing platform (301) and an internal material discharge platform (306), a platform groove (302) is provided inside the external pressing platform (301), side rails (304) with grooves are fixedly provided on both sides of the platform groove (302), and an end groove (303) is provided at one end of the platform groove (302) away from the internal material discharge platform (306), side sliding grooves (307) are provided on both sides of the internal material discharge platform (306), sliding wheels (308) are provided at the top and bottom of the side sliding grooves (307), and a traction end frame (305) is fixedly provided at one end of the internal material discharge platform (306) close to the external pressing platform (301); The follower arm assembly (400) comprises a double-threaded screw (401), an end shaft (405) is fixedly provided on the end of the rod body of the double-threaded screw (401), two movable pulleys (404) are fixedly provided on the end shaft (405), two internally threaded seats (402) are movably provided on the rod body of the double-threaded screw (401), a sliding block (403) is fixedly provided on the side of the internally threaded seat (402) away from the scissor arm (406), and the scissor arm (406) is hingedly provided between the top and bottom ends of the two internally threaded seats (402).

3. The aluminum plate precision flattening device according to claim 2, characterized in that: The inner unloading platform (306) slides in the platform groove (302), and the inner unloading platform (306) forms a movable platform structure that contracts inwards for pressing and flattening and expands outwards for unloading in the external pressure platform (301), and the sliding wheel (308) in the side sliding groove (307) guides and rolls on the grooved side rail (304).

4. The aluminum plate precision flattening device according to claim 2, characterized in that: The end shaft rod (405) is rotatably connected to the external pressure platform (301) near the two sides of the end groove (303), the movable pulley (404) is located outside the external pressure platform (301), the sliding block (403) slides in the end groove (303), and the distal arm body of the scissor arm (406) is hinged on the frame body of the traction end frame (305).

5. The aluminum plate precision flattening device according to claim 2, characterized in that: The bottoms of the auxiliary flattening arm (201) and the active flattening arm (202) are both rotatably arranged on the inner wall of the U-shaped frame (101) via a flattening arm main shaft (203) and a bearing; the top of the hydraulic cylinder (104) is rotatably connected to the driving side arm (205); a plurality of groups of the flattening platform assemblies (300) are longitudinally staggered and arranged between the two groups of flattening arm assemblies (200); and a plurality of node shaft platforms (204) on the auxiliary flattening arm (201) and the active flattening arm (202) are rotatably arranged on the frames on both sides of the plurality of external flattening platforms (301).

6. The aluminum plate precision flattening device according to claim 2, characterized in that: The end shaft rod (405) on the follower arm assembly (400) at one end of each group of the flattening platform assembly (300) close to the end groove (303) is rotatably arranged in the node shaft platform (204) of the active flattening arm (202), and the movable pulley (404) is arranged outside the active flattening arm (202). The movable pulleys (404) at the same end of multiple groups of the follower arm assemblies (400) are connected in series through belt transmission.

7. The aluminum plate precision flattening device according to claim 2, characterized in that: The fixed pulley (103) is fixed on the inner wall of the U-shaped frame (101), and a transmission belt is sleeved between the fixed pulley (103) and the movable pulley (404) on the outer side of the bottom node shaft platform (204) of the active flattening arm (202), and the diameter of the fixed pulley (103) is larger than that of the movable pulley (404).

8. The aluminum plate precision flattening device according to claim 2, characterized in that: The aluminum plate is placed on the inner material discharge platform (306), and when multiple groups of the pressing platform assemblies (300) swing to the right to form a superimposed flattening structure, the bottom end surface of the outer pressing platform (301) on the adjacent top pressing platform assembly (300) forms a superimposed downward pressing flattening structure with the top end surface of the inner material discharge platform (306) on the adjacent bottom pressing platform assembly (300).

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