Aluminum alloy plate cutting device

Abstract

The present invention provides an aluminum alloy plate cutting and processing device, and relates to the technical field of aluminum alloy plate cutting and processing. The present invention comprises a side plate, wherein the upper surface of the side plate near the left end is fixedly connected with a placing device, the inner surface of the side plate is rotatably connected with a transmission wheel, the inner surface of the side plate is fixedly connected with a second motor, the side surface of the transmission wheel is fixedly connected to the output end of the second motor, and the surface of the transmission wheel is movably connected with a conveyor belt. When the push plate is moved to the position of the blocking plate, the blocking plate is flipped to the drop opening below the limiting shell to seal the drop opening to prevent the aluminum alloy plate from falling. After the blocking plate is removed, the aluminum alloy plate continues to fall onto the conveyor belt to move. The aluminum alloy plate automatically falls onto the conveyor belt between each corresponding push plate through the placing device, and there is no need to place them one by one, thereby improving efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy plate cutting and processing, in particular to an aluminum alloy plate cutting and processing device. Background Art

[0002] Aluminum alloy sheet is a material made of aluminum and other metal elements (such as copper, magnesium, manganese, silicon, zinc, etc.) through alloying. Compared with pure aluminum, aluminum alloy has better performance in strength, corrosion resistance, and processability. Due to these superior characteristics, aluminum alloy is widely used in aerospace, automobile, construction, electronics, machinery and other industries. Aluminum alloy has a low density and is an ideal lightweight material. After alloying, the strength of aluminum alloy can be significantly improved, and it is suitable for various structures that need to bear weight. Aluminum alloy has natural corrosion resistance, especially in wet or salt spray environment. Aluminum alloy can be processed by welding, cutting, milling, stamping and other processing methods to meet different production needs. Therefore, aluminum alloy sheet has become an indispensable material in modern industry.

[0003] Aluminum alloy plates need to be cut to a suitable size before use. The existing aluminum alloy cutting device cuts the plates by a cutting machine. For example, the invention patent application with publication number CN116690294A discloses an aluminum alloy door and window cutting device, which cuts the aluminum alloy manually using a cutting machine. When a large number of aluminum alloy plates need to be cut, the efficiency is low. Another method is to automatically cut the aluminum alloy plates by a conveyor belt, as recorded in an aluminum alloy template automatic milling machine disclosed in the invention patent with publication number CN112091295B. However, this method cannot change the cutting edge depth and cannot be adjusted, and the functionality is relatively simple. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an aluminum alloy plate cutting processing device, which solves the problems of poor efficiency of manual cutting and inability to adjust the cutting edge depth when a large number of plates need to be cut.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an aluminum alloy plate cutting and processing device, comprising a side plate, the upper surface of the side plate near the left end is fixedly connected to a placing device, the inner surface of the side plate is rotatably connected to a transmission wheel, the inner surface of the side plate is fixedly connected to a second motor, the side surface of the transmission wheel is fixedly connected to the output end of the second motor, the surface of the transmission wheel is movably connected to a conveyor belt, the surface of the conveyor belt is fixedly connected to a propulsion plate, the right end of the side plate is fixedly connected to a shell, the front end of the shell is fixedly connected to a separation table, a pressing device is arranged on the inner side of the shell, a cutting device is arranged on the inner side of the shell and near the lower end of the pressing device, and an adjusting device is arranged near the lower end of the shell.

[0006] Preferably, the placement device includes a limiting shell, a slide and a blocking plate, the lower surface of the limiting shell is fixedly connected to the upper surface of the shell, the slide is fixedly connected to the inner surface of the limiting shell, the side surface of the blocking plate is fixedly connected with a hinge, and the blocking plate is movably connected to the lower end of the slide through the hinge.

[0007] Preferably, the pressing device comprises a first motor, a first screw rod, a first inclined surface block, a movable bracket, a positioning plate, a first sliding rod, a first spring, a pressure plate, a first short rod, a second screw rod and a second short rod, the first motor is fixedly connected to the inner surface of the housing, and the upper end of the first screw rod is fixedly connected to the output end of the first motor.

[0008] Preferably, the lower end of the first screw rod is fixedly connected to the upper end of the first short rod, the lower end of the first short rod is fixedly connected to the upper end of the second screw rod, the lower end of the second screw rod is fixedly connected to the upper end of the second short rod, the first inclined block is threadedly connected to the side surface of the first screw rod, the lower end of the movable bracket is fixedly connected to the upper surface of the positioning plate, the movable bracket is threadedly connected to the side surface of the second screw rod, and the lower end of the first sliding rod is fixedly connected to the upper surface of the pressing plate.

[0009] Preferably, the first sliding rod is slidably connected to the inner surface of the positioning plate, the first spring is sleeved on the side surface of the first sliding rod, the upper end of the first spring is fixedly connected to the lower surface of the positioning plate, the lower end of the first spring is fixedly connected to the upper surface of the pressure plate, and the pressure plate and the positioning plate are slidably connected to the inner surface of the shell.

[0010] Preferably, the cutting device comprises a second inclined plane block, a movable plate, a second spring, a second sliding rod, a cutting wheel, a first connecting rod, a second connecting rod and a pushing plate, wherein the movable plate is slidably connected to the inner surface of the housing, the second inclined plane block is fixedly connected to the upper surface of the movable plate, and the inclined plane of the second inclined plane block corresponds to the inclined plane of the first inclined plane block.

[0011] Preferably, a fixed plate is fixedly connected to the lower part of the movable plate, a third motor is fixedly connected to the inner side of the fixed plate, the side surface of the cutting wheel is fixedly connected to the output end of the third motor, the upper end of the first connecting rod is fixedly connected to the lower surface of the movable plate, the side surface of the second connecting rod near the upper end is fixedly connected to a latch, the second connecting rod is movably connected to the inner surface of the first connecting rod near the lower end through the latch, the pushing plate is fixedly connected to the lower end of the second connecting rod, one end of the second sliding rod is fixedly connected to the side surface of the movable plate, the second spring is sleeved on the side surface of the second sliding rod, one end of the second spring is fixedly connected to the inner surface of the shell, and the other end of the second spring is fixedly connected to the side surface of the movable plate.

[0012] Preferably, the adjusting device includes a rotating handle, a third screw rod and an adjusting plate, the adjusting plate is slidably connected to the inner surface of the shell, the third screw rod is threadedly connected to the inner surface of the shell, one end of the third screw rod is rotatably connected to the side surface of the adjusting plate, the rotating handle is fixedly connected to the other end of the third screw rod, and the adjusting plate slides on the inner surface of the shell through the third screw rod.

[0013] The present invention provides an aluminum alloy plate cutting and processing device, which has the following beneficial effects:

[0014] 1. When the push plate moves to the position of the blocking plate, the blocking plate is flipped to the drop opening under the limit shell to seal the drop opening to prevent the aluminum alloy plate from falling. After the blocking plate is removed, the aluminum alloy plate continues to fall onto the conveyor belt for movement. The aluminum alloy plate automatically falls onto the conveyor belt between each corresponding push plate through the placement device. There is no need to place them one by one, which improves efficiency.

[0015] 2. The aluminum alloy plate is pressed by setting a pressure plate in the pressing device, and the cutting wheel is driven to move and cut the aluminum alloy plate through the cooperation of the first bevel block and the second bevel block, thereby improving the cutting efficiency, and the cut plate is pushed to the separation table for collection through the push plate.

[0016] 3. The depth of the aluminum alloy sheet entering the shell is adjusted by the adjusting device, so as to cut different sizes to meet production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an aluminum alloy plate cutting processing device proposed by the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of an aluminum alloy plate cutting processing device proposed by the present invention;

[0019] Figure 3A schematic diagram of the partial structure of an aluminum alloy plate cutting processing device proposed by the present invention Figure 1 ;

[0020] Figure 4 A schematic diagram of the partial structure of an aluminum alloy plate cutting processing device proposed by the present invention Figure 2 ;

[0021] Figure 5 This is a schematic diagram of the structure of a placement device for an aluminum alloy plate cutting processing device proposed by the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of a pressing device of an aluminum alloy plate cutting processing device proposed by the present invention;

[0023] Figure 7 This is a schematic diagram of the first screw structure of an aluminum alloy plate cutting processing device proposed by the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of a cutting device of an aluminum alloy plate cutting processing device proposed by the present invention;

[0025] Fig. 9 This is a schematic diagram of the internal structure of a first connecting rod of an aluminum alloy plate cutting and processing device proposed by the present invention;

[0026] Fig.10 This is a schematic diagram of the structure of a cutting device of an aluminum alloy plate cutting device proposed by the present invention;

[0027] Fig.11 This is a schematic diagram of the structure of an adjustment device for an aluminum alloy plate cutting processing device proposed by the present invention;

[0028] Fig.12 This is a schematic diagram of the internal structure of a propulsion plate of an aluminum alloy plate cutting processing device proposed in the present invention.

[0029] Among them, 1. side plate; 2. shell; 3. placement device; 301. limiting shell; 302. slideway; 303. blocking plate; 4. pushing plate; 5. conveyor belt; 6. pressing device; 601. first motor; 602. first screw rod; 603. first inclined plane block; 604. moving bracket; 605. positioning plate; 606. first slide bar; 607. first spring; 608. pressing plate; 609. first short rod; 610. second screw rod; 611. second short rod; 7. cutting device; 701. second inclined plane block; 702. moving plate; 703. second spring; 704. second slide bar; 705. cutting wheel; 706. first connecting rod; 707. second connecting rod; 708. pushing plate; 8. adjusting device; 801. turning handle; 802. third screw rod; 803. adjusting plate; 9. separation table. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figure 1-12 As shown, an embodiment of the present invention provides an aluminum alloy plate cutting and processing device, including an aluminum alloy plate cutting and processing device, including a side plate 1, a placing device 3 is fixedly connected to the upper surface of the side plate 1 near the left end, a transmission wheel is rotatably connected to the inner surface of the side plate 1, a second motor is fixedly connected to the inner surface of the side plate 1, a side surface of the transmission wheel is fixedly connected to the output end of the second motor, a conveyor belt 5 is movably connected to the surface of the transmission wheel, a push plate 4 is fixedly connected to the surface of the conveyor belt 5, a shell 2 is fixedly connected to the right end of the side plate 1, a separation table 9 is fixedly connected to the front end of the shell 2, a pressing device 6 is arranged on the inner side of the shell 2, a cutting device 7 is arranged on the inner side of the shell 2 and near the lower end of the pressing device 6, an adjusting device 8 is arranged near the lower end of the shell 2, a fixed block for supporting the conveyor belt 5 is arranged below the conveyor belt 5 to prevent the conveyor belt 5 from collapsing, a dividing groove is arranged on the separation table 9 to separate products and waste for subsequent processing, and an opening is arranged at one end of both sides of the push plate 4, and no opening is arranged at the other end, so that the aluminum alloy plate can smoothly leave the push plate 4.

[0032] The placement device 3 includes a limiting shell 301, a slide 302 and a blocking plate 303. The lower surface of the limiting shell 301 is fixedly connected to the upper surface of the shell 2, the slide 302 is fixedly connected to the inner surface of the limiting shell 301, and the side surface of the blocking plate 303 is fixedly connected with a hinge. The blocking plate 303 is movably connected to the lower end of the slide 302 through the hinge. A conveying device can be arranged above the placement device 3 to convey the aluminum alloy plates to be cut to the slide 302, and the plates slide down the slide 302 one by one.

[0033] The pressing device 6 includes a first motor 601, a first screw rod 602, a first inclined surface block 603, a movable bracket 604, a positioning plate 605, a first sliding rod 606, a first spring 607, a pressing plate 608, a first short rod 609, a second screw rod 610 and a second short rod 611. The first motor 601 is fixedly connected to the inner surface of the housing 2, the upper end of the first screw rod 602 is fixedly connected to the output end of the first motor 601, the lower end of the first screw rod 602 is fixedly connected to the upper end of the first short rod 609, the lower end of the first short rod 609 is fixedly connected to the upper end of the second screw rod 610, the lower end of the second screw rod 610 is fixedly connected to the upper end of the second short rod 611, and the first The inclined block 603 is threadedly connected to the side surface of the first screw rod 602, the lower end of the movable bracket 604 is fixedly connected to the upper surface of the positioning plate 605, the movable bracket 604 is threadedly connected to the side surface of the second screw rod 610, the lower end of the first slide bar 606 is fixedly connected to the upper surface of the pressure plate 608, the first slide bar 606 is slidably connected to the inner surface of the positioning plate 605, the first spring 607 is sleeved on the side surface of the first slide bar 606, the upper end of the first spring 607 is fixedly connected to the lower surface of the positioning plate 605, the lower end of the first spring 607 is fixedly connected to the upper surface of the pressure plate 608, and the pressure plate 608 and the positioning plate 605 are slidably connected to the inner surface of the shell 2.

[0034] Start the first motor 601, and the first motor 601 drives the first screw rod 602, the first short rod 609, the second screw rod 610 and the second short rod 611 to rotate, and drives the second screw rod 610 to rotate and drives the movable bracket 604 to move downward to press the pressure plate 608 on the aluminum alloy plate. At this time, the movable bracket 604 moves to the second short rod 611, and the pressure plate 608 is no longer moved downward. At the same time, the first screw rod 602 drives the first inclined block 603 to move downward.

[0035] The cutting device 7 includes a second inclined plane block 701, a movable plate 702, a second spring 703, a second slide bar 704, a cutting wheel 705, a first connecting rod 706, a second connecting rod 707 and a pushing plate 708. The movable plate 702 is slidably connected to the inner surface of the housing 2, the second inclined plane block 701 is fixedly connected to the upper surface of the movable plate 702, the inclined surface of the second inclined plane block 701 corresponds to the inclined surface of the first inclined plane block 603, the lower part of the movable plate 702 is fixedly connected to a fixed plate, the inner side of the fixed plate is fixedly connected to a third motor, the side surface of the cutting wheel 705 is fixedly connected to the output end of the third motor, the first connecting rod 706 is fixedly connected to the inner side of the housing 2, and the second inclined plane block 701 is fixedly connected to the upper surface of the movable plate 702. The upper end of the rod 706 is fixedly connected to the lower surface of the movable plate 702, the side surface of the second connecting rod 707 near the upper end is fixedly connected with a pin, the second connecting rod 707 is movably connected to the inner surface of the first connecting rod 706 near the lower end through the pin, the pushing plate 708 is fixedly connected to the lower end of the second connecting rod 707, one end of the second sliding rod 704 is fixedly connected to the side surface of the movable plate 702, the second spring 703 is sleeved on the side surface of the second sliding rod 704, one end of the second spring 703 is fixedly connected to the inner surface of the shell 2, and the other end of the second spring 703 is fixedly connected to the side surface of the movable plate 702.

[0036] The first screw rod 602 drives the first inclined plane block 603 to move downward to the inclined plane of the second inclined plane block 701, thereby driving the movable plate 702 to move toward the aluminum alloy plate, and at the same time starts the cutting wheel 705 to cut the aluminum alloy plate. When moving to the plate, the pushing plate 708 is bent under the action of the second connecting rod 707. When the cutting wheel 705 has completed the cutting, the pushing plate 708 moves to the other side of the aluminum alloy plate. Then the first motor 601 reverses, driving the pressing plate 608 and the first inclined plane block 603 to move upward. At this time, the limit on the aluminum alloy plate is released. At the same time, under the elastic force of the second spring 703, the movable plate 702 moves to its original position. At this time, the pushing plate 708 supports the aluminum alloy plate and moves it to the separation table 9.

[0037] The adjusting device 8 includes a rotating handle 801, a third screw rod 802 and an adjusting plate 803. The adjusting plate 803 is slidably connected to the inner surface of the shell 2. The third screw rod 802 is threadedly connected to the inner surface of the shell 2. One end of the third screw rod 802 is rotatably connected to the side surface of the adjusting plate 803. The rotating handle 801 is fixedly connected to the other end of the third screw rod 802. The adjusting plate 803 slides on the inner surface of the shell 2 through the third screw rod 802. When it is necessary to adjust the depth of the cutting edge, the rotating handle 801 is rotated to drive the third screw rod 802 to rotate and drive the adjusting plate 803 to move, thereby cutting plates of different sizes. An anti-slip pad is arranged under the pressure plate 608 to prevent the aluminum alloy plate from being unstable during cutting.

[0038] Working principle: the aluminum alloy sheet is placed in the slide 302 and slides onto the blocking plate 303. At this time, the push plate 4 is located under the blocking plate 303 and supports the blocking plate 303. Then the second motor is started and the conveyor belt 5 is driven to move through the transmission wheel, thereby driving the push plate 4 to move away from the blocking plate 303. After leaving the blocking plate 303, there is no support under the blocking plate 303 and it flips downward. At this time, one end of the aluminum alloy sheet has no support from the blocking plate 303 and slides from the slide 302 to the surface of the conveyor belt 5. The gap between the lower end of the slide 302 and the limiting shell 301 is large and can slide normally. Then, the aluminum alloy sheet moves to the conveyor belt 5 under the action of the movement of the conveyor belt 5 and the friction between the conveyor belt 5 and the blocking plate 303. At this time, the aluminum alloy The aluminum alloy plate moves on the conveyor belt 5, and then the aluminum alloy plate moves to the position of the shell 2. The shell 2 is provided with an internal slot and the opening of the internal slot is provided with a guiding slope. One end of the aluminum alloy plate slides into the internal slot of the shell 2 through the guiding slope provided on the slot, and the aluminum alloy plate continues to move to the surface of the adjustment plate 803 and is supported by the adjustment plate 803. Then the conveyor belt 5 continues to move, and the push plate 4 on the conveyor belt 5 moves to the other end of the aluminum alloy plate. After the other end is inserted into the inside of the push plate 4, the conveyor belt 5 stops moving, and then the first motor 601 is started. The first motor 601 drives the first screw rod 602, the first short rod 609, the second screw rod 610 and the second short rod 611 to rotate, driving the second screw rod 610 to rotate the belt The movable bracket 604 moves downward to press the pressure plate 608 on the aluminum alloy plate. At this time, the movable bracket 604 moves to the second short rod 611 and no longer moves the pressure plate 608 downward. At the same time, the first screw rod 602 drives the first inclined surface block 603 to move downward. After the first inclined surface block 603 moves to the inclined surface of the second inclined surface block 701, it continues to move downward. Through the interaction of the inclined surfaces on the first inclined surface block 603 and the second inclined surface block 701, the second inclined surface block 701 and the movable plate 702 are driven to move in the direction of the aluminum alloy plate. The movable plate 702 is slidably connected to the inner surface of the shell 2, and the cutting wheel 705 is started at the same time. When the movable plate 702 moves, the cutting wheel 705 cuts the aluminum alloy plate. The second connecting rod 707 is connected to the first connecting rod 706. The push plate 708 can only bend in one direction and cannot bend in the other direction due to the limitation of the first connecting rod 706. When it moves to the plate, the push plate 708 is bent and moved to the top of the aluminum alloy plate under the action of the second connecting rod 707. When the cutting wheel 705 has finished cutting, the push plate 708 moves to the other side of the aluminum alloy plate. Then the first motor 601 reverses, driving the pressure plate 608 and the first inclined block 603 to move upward. At this time, the limitation of the aluminum alloy plate is released, and at the same time, the moving plate 702 moves to its original position under the elastic force of the second spring 703. At this time, the push plate 708 cannot bend due to the limitation of the first connecting rod 706, thereby supporting the aluminum alloy plate and moving it to the separation table 9, and the cut aluminum alloy plate and cutting waste are subsequently processed.The second screw rod 610 rotates to drive the movable bracket 604 and the first bevel block 603 to move upward. When the movable bracket 604 moves to the position of the first short rod 609, the surface of the first short rod 609 is smooth and has no threads, so it no longer moves upward. At this time, the first screw rod 602 continues to rotate to drive the first bevel block 603 to move upward to a suitable position. When the depth of the cutting edge needs to be adjusted, the rotating handle 801 is rotated to drive the third screw rod 802 to rotate and drive the adjustment plate 803 to move, so as to cut plates of different sizes.

[0039] 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. An aluminum alloy plate cutting device, comprising a side plate (1), characterized in that: The upper surface of the side plate (1) near the left end is fixedly connected to a placing device (3); the inner surface of the side plate (1) is rotatably connected to a transmission wheel; the inner surface of the side plate (1) is fixedly connected to a second motor; the side surface of the transmission wheel is fixedly connected to the output end of the second motor; the surface of the transmission wheel is movably connected to a conveyor belt (5); the surface of the conveyor belt (5) is fixedly connected to a propulsion plate (4); the right end of the side plate (1) is fixedly connected to a shell (2); the front end of the shell (2) is fixedly connected to a separation table (9); a pressing device (6) is arranged on the inner side of the shell (2); a cutting device (7) is arranged on the inner side of the shell (2) and near the lower end of the pressing device (6); an adjusting device (8) is arranged near the lower end of the shell (2); the pressing device (6) comprises a first motor (601), a first screw rod (602), a first inclined surface block (603), a movable bracket (604), a positioning plate (605), a first sliding rod (606), A first spring (607), a pressure plate (608), a first short rod (609), a second screw rod (610) and a second short rod (611); the first motor (601) is fixedly connected to the inner surface of the housing (2); the upper end of the first screw rod (602) is fixedly connected to the output end of the first motor (601); the lower end of the first screw rod (602) is fixedly connected to the upper end of the first short rod (609); the lower end of the first short rod (609) is fixedly connected to the upper end of the second screw rod (610); the lower end of the second screw rod (610) is fixedly connected to the upper end of the second short rod (611); the first inclined surface block (603) is threadedly connected to the side surface of the first screw rod (602); the lower end of the movable bracket (604) is fixedly connected to the upper surface of the positioning plate (605); the movable bracket (604) is threadedly connected to the side surface of the second screw rod (610); the first sliding rod (606) The lower end of the first slide bar (606) is fixedly connected to the upper surface of the pressure plate (608), the first slide bar (606) is slidably connected to the inner surface of the positioning plate (605), the first spring (607) is sleeved on the side surface of the first slide bar (606), the upper end of the first spring (607) is fixedly connected to the lower surface of the positioning plate (605), the lower end of the first spring (607) is fixedly connected to the upper surface of the pressure plate (608), and the pressure plate (608) and the positioning plate (605) are slidably connected. The cutting device (7) is connected to the inner surface of the housing (2), and comprises a second inclined surface block (701), a movable plate (702) and a cutting wheel (705); the movable plate (702) is slidably connected to the inner surface of the housing (2); the second inclined surface block (701) is fixedly connected to the upper surface of the movable plate (702); the inclined surface of the second inclined surface block (701) corresponds to the inclined surface of the first inclined surface block (603); a fixed plate is fixedly connected below the movable plate (702);A third motor is fixedly connected to the inner side of the fixing plate, and a side surface of the cutting wheel (705) is fixedly connected to the output end of the third motor.

2. The aluminum alloy sheet cutting processing device according to claim 1, characterized in that: The placement device (3) comprises a limiting shell (301), a slideway (302) and a blocking plate (303); the lower surface of the limiting shell (301) is fixedly connected to the upper surface of the housing (2); the slideway (302) is fixedly connected to the inner surface of the limiting shell (301); a hinge is fixedly connected to the side surface of the blocking plate (303); and the blocking plate (303) is movably connected to the lower end of the slideway (302) via the hinge.

3. The aluminum alloy sheet cutting processing device according to claim 1, characterized in that: The cutting device (7) further comprises a second spring (703), a second slide bar (704), a first connecting rod (706), a second connecting rod (707) and a pushing plate (708), wherein the upper end of the first connecting rod (706) is fixedly connected to the lower surface of the movable plate (702), the side surface of the second connecting rod (707) close to the upper end is fixedly connected with a latch, the second connecting rod (707) is movably connected to the inner surface of the first connecting rod (706) close to the lower end through the latch, the pushing plate (708) is fixedly connected to the lower end of the second connecting rod (707), one end of the second slide bar (704) is fixedly connected to the side surface of the movable plate (702), the second spring (703) is sleeved on the side surface of the second slide bar (704), one end of the second spring (703) is fixedly connected to the inner surface of the shell (2), and the other end of the second spring (703) is fixedly connected to the side surface of the movable plate (702).

4. The aluminum alloy sheet cutting processing device according to claim 1, characterized in that: The adjusting device (8) comprises a rotating handle (801), a third screw rod (802) and an adjusting plate (803); the adjusting plate (803) is slidably connected to the inner surface of the housing (2); the third screw rod (802) is threadedly connected to the inner surface of the housing (2); one end of the third screw rod (802) is rotatably connected to the side surface of the adjusting plate (803); the rotating handle (801) is fixedly connected to the other end of the third screw rod (802); and the adjusting plate (803) slides on the inner surface of the housing (2) via the third screw rod (802).

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