Extrusion die for large-plane aluminum material and machining method of extrusion die

Abstract

According to the technical scheme, the extrusion die is characterized in that the extrusion die comprises a base, a plurality of sets of symmetrically-distributed supporting rods are installed on the base, a top plate is fixed to the upper ends of the supporting rods, a thrust assembly is installed on the top plate, an installation base is installed on the thrust assembly, and the installation base is provided with a plurality of supporting rods; an upper mold is inserted into the mounting seat; a lower die is installed on the base, rectangular grooves are formed in the two sides of the lower die, clamping plates are clamped in the rectangular grooves, sliding supports are connected to the clamping plates, and the sliding supports are installed on the lower die in an inserted mode and can drive the clamping plates clamped in the rectangular grooves to move horizontally and correct the placing angle of an aluminum blank in the lower die. And it is guaranteed that the aluminum blank can be fully laid in the mold in the extrusion process, the defects of the shape of the large-plane aluminum material are reduced, and the extrusion forming quality of the large-plane aluminum material is improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum molds, and in particular to an extrusion mold for a large-plane aluminum material and a processing method thereof. Background Art

[0002] Aluminum products are a general term for daily necessities and industrial products made from aluminum alloy as the main raw material. Aluminum products have a series of excellent properties, such as good strength, good weather resistance, low density, etc. They are usually used to make heat dissipation parts or exterior decorative parts. At present, in the production process of aluminum profiles, large-flat aluminum extrusion dies are needed to shape the aluminum profiles.

[0003] For example, a Chinese patent with authorization announcement number CN210586452U discloses a large flat aluminum extrusion die, which relates to the field of die technology, wherein a lower die is arranged on one side of the upper die, a diverter hole is arranged inside the upper die, a mold core is arranged inside the diverter hole, a diverter bridge is arranged between the mold core and the upper die, a pressure relief groove is arranged inside the diverter bridge, a screw hole is arranged on the outside of the diverter hole, a mold cavity is arranged at the middle position of the lower die, a welding chamber is arranged in the middle of one end of the lower die, a working belt is arranged on one side of the welding chamber, a discharge port is arranged on one side of the working belt, screw holes evenly distributed around the discharge port are arranged, bolts are installed inside the screw holes, a die base is arranged on one side of the lower die, a nitrogen channel is arranged inside the die base, a nozzle is installed inside the nitrogen channel, and a discharge port is arranged inside the die base.

[0004] The above-mentioned large flat aluminum extrusion die has the advantage of being able to quickly reduce the temperature of the newly formed aluminum; however, the above-mentioned large flat aluminum extrusion die and the existing commonly used large flat aluminum extrusion die both have some disadvantages, such as: the large flat aluminum extrusion die applies strong pressure to the aluminum blank placed in the mold cavity, forcing the aluminum blank to undergo directional plastic deformation to obtain the required cross-sectional shape. During the placement of the aluminum blank, the position is prone to deviation, resulting in the inability to fully spread in the mold during the extrusion process, and the shape of the large flat aluminum is prone to be incomplete, affecting the processing quality of the large flat aluminum. Summary of the invention

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide an extrusion die for large flat aluminum material and a processing method thereof to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: An extrusion die for a large flat aluminum material comprises a base, on which a plurality of symmetrically distributed support rods are mounted, a top plate is fixed to the upper end of the support rods, a thrust assembly is mounted on the top plate, a mounting seat is mounted on the thrust assembly, and an upper die is inserted on the mounting seat; A lower mold is installed on the base, and rectangular grooves are provided on both sides of the lower mold. A clamping plate is clamped in the rectangular groove, and a sliding bracket is connected to the clamping plate. The sliding bracket is inserted into the lower mold. A screw assembly is installed at the bottom of the base, and two symmetrical threaded brackets are threadedly connected to the screw assembly, and a transmission assembly is connected to one side, one side of the threaded bracket is fixed on the sliding bracket, and the transmission assembly is installed on the base.

[0007] By adopting the above technical solution, the thrust assembly installed on the top plate can increase the thrust for the mold, drive the upper mold inserted on the mounting seat to move, and extrude the aluminum blank in the lower mold to form a large flat aluminum material. The upper mold is inserted in the mounting seat, which is convenient for replacing the worn upper mold. The sliding bracket slides on both sides of the lower mold, which can drive the clamping plate engaged in the rectangular groove to move horizontally, correct the placement angle of the aluminum blank in the lower mold, and ensure that the aluminum blank can be fully spread in the mold during the extrusion process, reduce the defects in the shape of the large flat aluminum material, and improve the quality of the extrusion molding of the large flat aluminum material.

[0008] Preferably, the thrust assembly includes a connecting plate and two servo hydraulic cylinders, the two servo hydraulic cylinders are fixedly mounted on the top plate, and the output ends are fixedly connected to the connecting plate, and the mounting seat is connected to the connecting plate.

[0009] By adopting the above technical solution, when the output ends of the two servo hydraulic cylinders are fixedly connected to the connecting plate, the upper mold on the mounting seat can be driven to move downward to extrude the aluminum blank in the lower mold.

[0010] Preferably, a T-shaped slot is provided on the mounting seat, and a T-shaped mounting inserting portion is provided on the upper mold, and the T-shaped mounting inserting portion is inserted into the T-shaped slot.

[0011] By adopting the above technical solution, the T-shaped mounting insert is inserted into the T-shaped slot, which facilitates the installation of the upper mold on the mounting seat.

[0012] Preferably, the screw assembly includes two bearing seats, a bidirectional screw and a first sprocket, the two bearing seats are fixed on the lower surface of the base and are rotatably connected to the bidirectional screw through bearings, the bidirectional screw is threadedly connected to the threaded bracket, and the first sprocket is mounted on the bidirectional screw and connected to the transmission assembly.

[0013] By adopting the above technical solution, the first sprocket is fixedly connected to the bidirectional screw rod, and when rotating, it can drive the bidirectional screw rod to rotate smoothly on the two bearing seats, and adjust the distance of the two threaded brackets moving in the same or reverse direction, so that the clamping plate installed on the sliding bracket is pressed against the aluminum blank to correct the position.

[0014] Preferably, the transmission assembly includes a servo motor, a second sprocket and a chain, the servo motor is mounted on the base, and the motor shaft is fixedly connected to the second sprocket, and both sides of the chain are respectively connected to the second sprocket and the first sprocket.

[0015] By adopting the above technical solution, the servo motor drives the second sprocket to rotate. Since the two sides of the chain are respectively connected to the second sprocket and the first sprocket, it is convenient to drive the bidirectional lead screw to rotate.

[0016] Preferably, limit blocks are installed at both ends of the bidirectional screw rod.

[0017] By adopting the above technical solution, the movement stroke of the threaded bracket can be limited by the limit block to prevent it from detaching from the bidirectional lead screw.

[0018] Preferably, a base plate is provided in the lower mold, a servo electric cylinder is fixedly mounted on the lower surface of the base, and an end of the servo electric cylinder is fixedly connected to the base plate.

[0019] By adopting the above technical solution, when the base plate is connected to the servo electric cylinder, the large flat aluminum material formed by the roller can be lifted, making it convenient to take out the large flat aluminum material.

[0020] Preferably, a plurality of symmetrically distributed supporting legs are installed on the lower surface of the base, and rubber pads are installed on the supporting legs.

[0021] By adopting the above technical solution, the stability of the base is improved through the support legs and the rubber pads on the support legs.

[0022] Preferably, two symmetrically distributed rubber anti-collision blocks are fixedly mounted on the lower surface of the top plate.

[0023] By adopting the above technical solution, the rubber anti-collision block can reduce the impact between the connecting plate and the top plate, thereby improving the protection performance.

[0024] A method for processing a large flat aluminum material comprises the following specific steps: Step 1: clean the dust on the surface of the aluminum blank, and then place it in the lower mold on the surface of the base; Step 2: Start the transmission assembly, which drives the screw assembly installed at the bottom of the base to rotate, so that the two sliding brackets threadedly connected to the two sides of the screw assembly move horizontally toward each other, so that the clamping plates installed on the sliding brackets are separated from the rectangular groove and approach the aluminum billet, so as to clamp the two sides of the aluminum billet and correct the position of the aluminum billet; Step 3: The thrust assembly installed on the top plate drives the upper mold engaged on the mounting seat to move downward smoothly and stop on the upper surface of the aluminum blank. The screw assembly rotates to make the two sliding brackets move in opposite directions, driving the clamping plate to leave the surface of the aluminum blank and move into the rectangular groove. Step 4: The thrust assembly applies downward pressure, and the upper mold is engaged in the lower mold to extrude and shape the aluminum blank to form a large flat aluminum material. The thrust assembly drives the upper mold to move, and the staff takes the formed large flat aluminum material.

[0025] In summary, the present invention mainly has the following beneficial effects: First, in the extrusion die of the large flat aluminum material, the thrust assembly installed on the top plate can increase the thrust for the die, drive the upper die inserted on the mounting seat to move, extrude the aluminum blank in the lower die to form a large flat aluminum material, and the upper die is inserted in the mounting seat, which is convenient for replacing the worn upper die; Second, in the extrusion die of the large flat aluminum material, the sliding bracket slides on both sides of the lower die, which can drive the clamping plate engaged in the rectangular groove to move horizontally, correct the placement angle of the aluminum blank in the lower die, and ensure that the aluminum blank can be fully spread in the die during the extrusion process, thereby reducing the defects in the shape of the large flat aluminum material and improving the quality of the extrusion molding of the large flat aluminum material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is one of the structural schematic diagrams of the present invention; Figure 2 This is the second structural schematic diagram of the present invention; Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0027] 1. Base; 2. Support rod; 3. Top plate; 4. Thrust assembly; 41. Connecting plate; 42. Servo hydraulic cylinder; 5. Mounting seat; 6. Upper mold; 7. Lower mold; 8. Rectangular groove; 9. Clamping plate; 10. Sliding bracket; 11. Screw assembly; 111. Bearing seat; 112. Bidirectional screw; 113. First sprocket; 12. Threaded bracket; 13. Transmission assembly; 131. Servo motor; 132. Second sprocket; 133. Chain; 14. T-slot; 15. T-mounting plug-in part; 16. Limit block; 17. Bottom plate; 18. Servo electric cylinder; 19. Support leg; 20. Rubber pad; 21. Rubber anti-collision block. DETAILED DESCRIPTION

[0028] 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.

[0029] refer to Figure 1-Figure 3 , an extrusion die for large flat aluminum material, comprising a base 1, on which a plurality of symmetrically distributed support rods 2 are mounted, a top plate 3 is fixed to the upper end of the support rod 2, a thrust assembly 4 is mounted on the top plate 3, the thrust assembly 4 comprises a connecting plate 41 and two servo hydraulic cylinders 42, the two servo hydraulic cylinders 42 are both fixedly mounted on the top plate 3, and the output ends are fixedly connected to the connecting plate 41, a mounting seat 5 is connected to the connecting plate 41, when the output ends of the two servo hydraulic cylinders 42 are fixedly connected to the connecting plate 41, the upper die 6 on the mounting seat 5 can be driven to move downward, and the aluminum blank in the lower die 7 is extruded, a mounting seat 5 is mounted on the thrust assembly 4, and an upper die 6 is inserted on the mounting seat 5; A lower mold 7 is installed on the base 1. Rectangular grooves 8 are provided on both sides of the lower mold 7. A clamping plate 9 is clamped in the rectangular groove 8. A sliding bracket 10 is connected to the clamping plate 9. The sliding bracket 10 is inserted into the lower mold 7. A screw assembly 11 is installed at the bottom of the base 1. The screw assembly 11 includes two bearing seats 111, a bidirectional screw 112 and a first sprocket 113. The two bearing seats 111 are fixed on the lower surface of the base 1 and are rotatably connected to the bidirectional screw 112 through bearings. The bidirectional screw 112 is threadedly connected to the threaded bracket 12. The first sprocket 113 is installed on the bidirectional screw 112 and is connected to the transmission assembly 13. The first sprocket 113 is fixedly connected to the bidirectional screw 112. When rotating, it can drive the bidirectional screw 112 to rotate smoothly on the two bearing seats 111. Adjust the two threaded brackets 1 2 moves in the same direction or in the opposite direction, so that the clamping plate 9 installed on the sliding bracket 10 is pressed against the aluminum blank to correct the position. Two symmetrical threaded brackets 12 are threadedly connected to the screw rod assembly 11, and one side is connected to the transmission assembly 13. One side of the threaded bracket 12 is fixed to the sliding bracket 10. The transmission assembly 13 is installed on the base 1. The transmission assembly 13 includes a servo motor 131, a second sprocket 132 and a chain 133. The servo motor 131 is installed on the base 1, and the motor shaft is fixedly connected to the second sprocket 132. The two sides of the chain 133 are respectively connected to the second sprocket 132 and the first sprocket 113. The servo motor 131 drives the second sprocket 132 to rotate. Since the two sides of the chain 133 are respectively connected to the second sprocket 132 and the first sprocket 113, it is convenient to drive the bidirectional screw rod 112 to rotate.

[0030] refer to Figure 1-Figure 3 A T-shaped slot 14 is provided on the mounting seat 5, and a T-shaped mounting plug-in portion 15 is provided on the upper mold 6. The T-shaped mounting plug-in portion 15 is inserted into the T-shaped slot 14, and the T-shaped mounting plug-in portion 15 is inserted into the T-shaped slot 14, so as to facilitate the installation of the upper mold 6 on the mounting seat 5.

[0031] refer to Figure 1-Figure 3 Limit blocks 16 are installed at both ends of the bidirectional screw rod 112. The limit blocks 16 can limit the movement of the threaded bracket 12 to prevent it from detaching from the bidirectional screw rod 112.

[0032] refer to Figure 1-Figure 3 A bottom plate 17 is provided in the lower mold 7, and a servo electric cylinder 18 is fixedly installed on the lower surface of the base 1. The end of the servo electric cylinder 18 is fixedly connected to the bottom plate 17. When the bottom plate 17 is connected to the servo electric cylinder 18, the large flat aluminum material formed by the roller can be lifted, which is convenient for taking the large flat aluminum material.

[0033] refer to Figure 1-Figure 3 A plurality of symmetrically distributed support legs 19 are installed on the lower surface of the base 1, and rubber pads 20 are installed on the support legs 19. The stability of the base 1 is improved by the support legs 19 and the rubber pads 20 on the support legs 19.

[0034] refer to Figure 1-Figure 3 Two symmetrically distributed rubber anti-collision blocks 21 are fixedly installed on the lower surface of the top plate 3. The rubber anti-collision blocks 21 can reduce the impact between the connecting plate 41 and the top plate 3 and improve the protection performance.

[0035] A method for processing a large flat aluminum material comprises the following specific steps: Step 1: clean the dust on the surface of the aluminum blank, and then place it in the lower mold 7 on the surface of the base 1; Step 2: Start the transmission assembly 13, which drives the screw assembly 11 installed at the bottom of the base 1 to rotate, so that the two sliding brackets 10 threadedly connected to the two sides of the screw assembly 11 move horizontally toward each other, so that the clamping plate 9 installed on the sliding bracket 10 is separated from the rectangular groove 8 and approaches the aluminum billet, clamping the two sides of the aluminum billet and correcting the position of the aluminum billet; Step 3: The thrust assembly 4 installed on the top plate 3 drives the upper mold 6 engaged on the mounting seat 5 to move downward smoothly and stop on the upper surface of the aluminum blank. The screw assembly 11 rotates to make the two sliding brackets 10 move in opposite directions, driving the clamping plate 9 to leave the surface of the aluminum blank and move into the rectangular groove 8; Step 4: The thrust assembly 4 applies downward pressure, and the upper mold 6 is engaged in the lower mold 7 to extrude and shape the aluminum blank to form a large flat aluminum material. The thrust assembly 4 drives the upper mold 6 to move, and the staff takes the formed large flat aluminum material.

[0036] Principle and advantages of use: Step 1: clean the dust on the surface of the aluminum blank, and then place it in the lower mold 7 on the surface of the base 1; Step 2: Start the transmission assembly 13, which drives the screw assembly 11 installed at the bottom of the base 1 to rotate, so that the two sliding brackets 10 threadedly connected to the two sides of the screw assembly 11 move horizontally toward each other, so that the clamping plate 9 installed on the sliding bracket 10 is separated from the rectangular groove 8 and approaches the aluminum billet, clamping the two sides of the aluminum billet and correcting the position of the aluminum billet; Step 3: The thrust assembly 4 installed on the top plate 3 drives the upper mold 6 engaged on the mounting seat 5 to move downward smoothly and stop on the upper surface of the aluminum blank. The screw assembly 11 rotates to make the two sliding brackets 10 move in opposite directions, driving the clamping plate 9 to leave the surface of the aluminum blank and move into the rectangular groove 8; Step 4: The thrust assembly 4 applies downward pressure, and the upper mold 6 is engaged in the lower mold 7 to extrude and shape the aluminum blank to form a large flat aluminum material. The thrust assembly 4 drives the upper mold 6 to move, and the staff takes the formed large flat aluminum material.

[0037] 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 extrusion die for large flat aluminum material, characterized in that: The invention comprises a base (1), a plurality of groups of symmetrically distributed support rods (2) are mounted on the base (1), a top plate (3) is fixed to the upper end of the support rods (2), a thrust assembly (4) is mounted on the top plate (3), a mounting seat (5) is mounted on the thrust assembly (4), and an upper mold (6) is inserted on the mounting seat (5); A lower mold (7) is installed on the base (1), and rectangular grooves (8) are provided on both sides of the lower mold (7). A clamping plate (9) is clamped in the rectangular groove (8), and a sliding bracket (10) is connected to the clamping plate (9). The sliding bracket (10) is inserted into the lower mold (7). A screw assembly (11) is installed at the bottom of the base (1), and two symmetrical threaded brackets (12) are threadedly connected to the screw assembly (11), and a transmission assembly (13) is connected to one side. One side of the threaded bracket (12) is fixed to the sliding bracket (10), and the transmission assembly (13) is installed on the base (1).

2. The extrusion die for large flat aluminum material according to claim 1, characterized in that: The thrust assembly (4) comprises a connecting plate (41) and two servo hydraulic cylinders (42); the two servo hydraulic cylinders (42) are fixedly mounted on the top plate (3), and the output ends are fixedly connected to the connecting plate (41); and the mounting seat (5) is connected to the connecting plate (41).

3. The extrusion die for large flat aluminum material according to claim 1, characterized in that: The mounting seat (5) is provided with a T-shaped slot (14), the upper mold (6) is provided with a T-shaped mounting inserting portion (15), and the T-shaped mounting inserting portion (15) is inserted into the T-shaped slot (14).

4. The extrusion die for large flat aluminum material according to claim 1, characterized in that: The screw assembly (11) comprises two bearing seats (111), a bidirectional screw (112) and a first sprocket (113); the two bearing seats (111) are fixed on the lower surface of the base (1) and are rotatably connected to the bidirectional screw (112) via bearings; the bidirectional screw (112) is threadedly connected to the threaded bracket (12); and the first sprocket (113) is mounted on the bidirectional screw (112) and is connected to the transmission assembly (13).

5. The extrusion die for large flat aluminum material according to claim 4, characterized in that: The transmission assembly (13) comprises a servo motor (131), a second sprocket (132) and a chain (133); the servo motor (131) is mounted on the base (1), and the motor shaft is fixedly connected to the second sprocket (132); and two sides of the chain (133) are respectively connected to the second sprocket (132) and the first sprocket (113).

6. The extrusion die for large flat aluminum material according to claim 4, characterized in that: Limit blocks (16) are installed at both ends of the bidirectional screw rod (112).

7. The extrusion die for large flat aluminum material according to claim 1, characterized in that: A bottom plate (17) is provided in the lower mould (7), a servo electric cylinder (18) is fixedly mounted on the lower surface of the base (1), and an end of the servo electric cylinder (18) is fixedly connected to the bottom plate (17).

8. The extrusion die for large flat aluminum material according to claim 6, characterized in that: A plurality of symmetrically distributed support legs (19) are mounted on the lower surface of the base (1), and rubber pads (20) are mounted on the support legs (19).

9. The extrusion die for large flat aluminum material according to claim 6, characterized in that: Two symmetrically distributed rubber anti-collision blocks (21) are fixedly mounted on the lower surface of the top plate (3).

10. A method for processing large flat aluminum material, characterized in that: The specific steps include: Step 1: clean the dust on the surface of the aluminum blank, and then place it in the lower mold (7) on the surface of the base (1); Step 2: Start the transmission assembly (13), the transmission assembly (13) drives the screw assembly (11) installed at the bottom of the base (1) to rotate, so that the two sliding brackets (10) threadedly connected to the two sides of the screw assembly (11) move horizontally towards each other, so that the clamping plate (9) installed on the sliding bracket (10) is separated from the rectangular groove (8) and approaches the aluminum billet, so as to clamp the two sides of the aluminum billet and correct the position of the aluminum billet; Step 3: The thrust assembly (4) installed on the top plate (3) drives the upper mold (6) engaged on the mounting seat (5) to move downward smoothly and stop on the upper surface of the aluminum blank. The screw assembly (11) rotates, causing the two sliding brackets (10) to move in opposite directions, driving the clamping plate (9) to leave the surface of the aluminum blank and move into the rectangular groove (8); Step 4: The thrust assembly (4) applies downward pressure, and the upper mold (6) is engaged in the lower mold (7) to extrude and shape the aluminum blank to form a large flat aluminum material. The thrust assembly (4) drives the upper mold (6) to move, and the staff takes the formed large flat aluminum material.

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