Continuous forming die for automobile aluminum plate

Abstract

The invention discloses a continuous forming die for an automobile aluminum plate, and relates to the technical field of automobile aluminum plates. The driving mechanisms are symmetrically arranged on the periphery of the base, and the output ends of the driving mechanisms are connected with a stamping plate; the upper die and the lower die are fixedly connected to the stamping plate and the base of the base respectively, and the upper die and the lower die are driven by a driving mechanism to be matched for stamping the aluminum plate for forming; and the cleaning assembly comprises a scraping plate and a collecting unit which are arranged on the stamping plate, and the scraping plate cleans the surface of the upper die through reciprocating motion and guides chippings to the collecting unit. A reciprocating screw rod driven by a motor drives a scraping plate and a scraping piece to automatically clean along the surface of the upper die, the scraping piece is made to adapt to fluctuation of the surface of the die by combining elastic adjustment of a first reset spring in the compensation assembly, it is ensured that cleaning is free of dead corners, and meanwhile a guide block in the compensation assembly is matched with a triangular moving block to dynamically adjust the height of the scraping piece; and interference during contact with the upper die is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of automobile aluminum plates, and in particular to a continuous forming die for automobile aluminum plates. Background Art

[0002] As the trend of lightweighting of automobiles accelerates, aluminum alloy sheets have become the preferred material for body panels and structural parts due to their high specific strength, corrosion resistance and machinability. In the aluminum sheet stamping process, the design of the mold directly affects the product precision, surface quality and production efficiency.

[0003] However, traditional automotive stamping dies face the following technical bottlenecks during the continuous forming of aluminum plates: During the stamping of aluminum plates, aluminum chips or tiny particles are easily adhered to the surface of the mold. Traditional cleaning methods rely on manual scraping or passive cleaning with fixed scrapers, which are inefficient and have blind spots. Residual aluminum chips may cause scratches on the surface of subsequent stamping parts, increased wear on the mold surface, and even cause product size deviations due to chips falling into the lower mold. At the same time, the chip collection device is prone to interference with the mold movement trajectory, requiring frequent disassembly and cleaning, reducing production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a continuous forming die for automobile aluminum plates to solve the problems existing in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A continuous forming die for automobile aluminum plates, comprising a base, hydraulic cylinders are fixedly installed around the base, and the output ends of the hydraulic cylinders are fixedly connected to stamping plates, and the middle of the stamping plate is fixedly connected to an upper die, and the upper die moves downward to cooperate with the lower die fixed to the base to stamp and form the aluminum plate;

[0007] The stamping plate is provided with a cleaning assembly, which includes a connecting rod that reciprocates along the stamping plate, a scraping plate is installed on the inner side of the connecting rod, and a collecting unit is detachably connected to the outer side of the connecting rod;

[0008] The connecting rod moves back and forth, so that the scraper plate cleans the upper mold surface back and forth, and makes the aluminum chips fall into the collection unit.

[0009] As a further solution of the present invention: the cleaning assembly further comprises a motor 1 fixedly mounted on one side of the stamping plate, and a reciprocating screw rod is fixedly mounted on the output end of the motor 1;

[0010] A sliding block, the sliding block is threadedly connected to the surface of the reciprocating screw rod, and the sliding block is fixed to the middle part of the connecting rod;

[0011] Motor 2, wherein the motor 2 is fixedly connected to one end of the connecting rod, and an output end of the motor 2 is fixedly connected to the scraper plate;

[0012] A docking rod, the docking rod slides inside the connecting rod;

[0013] A connecting pin is slidably connected to one side of the docking rod and the connecting rod.

[0014] As a further solution of the present invention: the connecting rod and the sliding block both slide through the sliding grooves provided in the stamping plate;

[0015] The docking rods are provided in two groups and are symmetrically arranged, and the scraping plates are rotatably connected to the inner sides of the connecting rods.

[0016] As a further solution of the present invention: a compensation component is arranged in the scraper plate for spacing compensation when cleaning the upper mold surface.

[0017] As a further solution of the present invention: the compensation assembly includes a scraper blade sliding on the middle of the scraper plate, both sides of the scraper blade are fixedly connected with a push column, and one end of the push column away from the scraper blade is fixedly connected with a moving block, and the top of the moving block is in contact with a guide block, and the guide block is fixedly connected to the surface of the stamping plate;

[0018] Two groups of guide posts, the two groups of guide posts are fixed in the slide grooves provided on both sides of the scraper plate, the surfaces of the guide posts are slidably connected with sliders, and the guide posts are sleeved with a return spring 1;

[0019] The limiting column is fixed in the connecting rod and slides in the pushing column.

[0020] As a further solution of the present invention: the sliders all slide through the slide grooves provided on the wiper plate, one end of the return spring 1 is fixed to the lower surface of the slider, and the other end of the return spring 1 is fixed to the slide groove provided on the wiper plate;

[0021] The pushing column moves inside the connecting rod;

[0022] The pushing column slides in the sliding groove of the punching plate.

[0023] As a further solution of the present invention: the base is fixedly installed on the base, and connecting columns are slidably connected on all four sides of the base, an upper limit plate is fixedly connected to one side of the connecting column, and a lower limit plate is fixedly connected to the other side of the connecting column, and a buffer spring is sleeved on the connecting column, one end of the buffer spring is fixedly connected to the surface of the base, and the other end of the buffer spring is fixedly connected to the lower surface of the upper limit plate.

[0024] As a further solution of the present invention: a disengagement component is provided on the lower mold to achieve disengagement of the aluminum plate after forming.

[0025] As a further solution of the present invention: the disengagement assembly includes racks fixedly connected to one end of the stamping plate and symmetrically arranged on both sides;

[0026] A limit plate, the limit plate is fixed in the base, a transmission shaft is rotated in the middle of the limit plate, a rotating block is fixed on the surface of the transmission shaft, and a gear is fixed on one end of the transmission shaft;

[0027] A positioning plate, the positioning plate is fixed in the lower mold, a moving column is slidably connected to the middle of the positioning plate, and a fixed plate is fixed to the surface of the moving column;

[0028] The second return spring is sleeved on the moving column.

[0029] As a further solution of the present invention: the movable column is slidably connected in the lower mold, an aluminum plate is placed on the surface of the movable column, one end of the second return spring is fixedly connected to the lower surface of the positioning plate, and the other end of the second return spring is fixedly connected to the lower surface of the fixed plate;

[0030] The positioning plate, the fixing plate and the return spring are all arranged in the lower mold.

[0031] Beneficial effects of the present invention:

[0032] (1) In the present invention, the reciprocating screw driven by the motor drives the scraper plate and the scraper blade to automatically clean along the surface of the upper mold. Combined with the elastic adjustment of the return spring 1 in the compensation component, the scraper blade is adaptive to the undulations of the mold surface to ensure that there is no dead angle in the cleaning. At the same time, the guide block and the triangular moving block in the compensation component cooperate to dynamically adjust the height of the scraper blade to avoid interference when contacting the upper mold. The debris is guided to the detachable collection unit through the inclined scraper plate to prevent aluminum chips from scattering and polluting the environment. The collection unit can be quickly disassembled through the connecting pin to improve the convenience of maintenance;

[0033] (2) The disengagement assembly in the present invention is driven by a rack and a gear and linked with a rotating block to push the movable column to smoothly eject the aluminum plate. Compared with the spring ejection, the mechanical linkage demoulding force is uniform and controllable, which significantly reduces the risk of bending of the aluminum plate. The reset spring 2 cooperates with the fixed plate to ensure smooth reset of the movable column and continuous stamping rhythm. It is also used in conjunction with the upper mold to ensure that the aluminum plate is synchronously disengaged when the upper mold moves to the upper limit position, thereby improving the efficiency of continuous forming of the aluminum plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2;

[0037] Figure 3 It is a schematic diagram of the combination of the cleaning component and the compensation component in the present invention;

[0038] Figure 4 It is a schematic diagram of the structure of the cleaning component in the present invention;

[0039] Figure 5 It is a schematic diagram of the structure of the compensation component in the present invention;

[0040] Figure 6 Figure 5 The enlarged view of point A in the middle;

[0041] Figure 7 It is a schematic diagram of the cross-sectional structure of the components of the compensation assembly in the present invention;

[0042] Figure 8 It is a partial cross-sectional structural schematic diagram of the present invention;

[0043] Fig. 9 It is a schematic diagram of the structure of the separation component in the present invention;

[0044] Fig.10 Fig. 9 Enlarged view of point B in the middle.

[0045] In the figure: 1. base; 2. hydraulic cylinder; 3. stamping plate; 4. cleaning assembly; 40. motor 1; 41. reciprocating screw; 42. connecting rod; 43. sliding block; 44. wiping plate; 45. motor 2; 46. collecting unit; 47. docking rod; 48. connecting pin; 5. compensation assembly; 50. scraper; 51. push column; 52. moving block; 53. guide block; 54. slider; 55. guide column; 56. reset spring 1; 57. limit column; 6. upper mold; 7. lower mold; 8. disengagement assembly; 80. rack; 81. gear; 82. transmission shaft; 83. limit plate; 84. rotating block; 85. moving column; 86. positioning plate; 87. fixed plate; 88. reset spring 2; 9. upper limit plate; 10. connecting column; 11. buffer spring; 12. lower limit plate; 13. base. DETAILED DESCRIPTION

[0046] 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.

[0047] Embodiment 1

[0048] See also Figure 1-Figure 10 As shown, the present invention is a continuous forming die for automobile aluminum plates, comprising a base 1, a hydraulic cylinder 2 is fixedly installed around the base 1, and the output ends of the hydraulic cylinder 2 are fixedly connected to a stamping plate 3, and an upper die 6 is fixedly connected to the middle of the stamping plate 3, and the upper die 6 moves downward to cooperate with a lower die 7 fixed to the base 13 to stamp the aluminum plate;

[0049] A cleaning assembly 4 is provided on the stamping plate 3. The cleaning assembly 4 includes a connecting rod 42 that reciprocates along the stamping plate 3. A scraping plate 44 is installed on the inner side of the connecting rod 42. A collecting unit 46 is detachably connected to the outer side of the connecting rod 42.

[0050] The connecting rod 42 moves back and forth, so that the scraper plate 44 cleans the surface of the upper mold 6 by reciprocating movement, and makes the aluminum chips fall into the collection unit 46.

[0051] It should be noted that the driving mechanism is specifically a hydraulic cylinder 2 or a cam up-and-down moving mechanism, and the collecting unit 46 is a collecting frame or a collecting box;

[0052] The upper mold 6 and the lower mold 7 are arranged in parallel.

[0053] In the present invention, preferably, the cleaning assembly 4 further comprises a motor 40 fixedly mounted on one side of the stamping plate 3, and a reciprocating screw rod 41 is fixedly mounted on the output end of the motor 40;

[0054] A sliding block 43, the sliding block 43 is threadedly connected to the surface of the reciprocating screw rod 41, and the sliding block 43 is fixed to the middle part of the connecting rod 42;

[0055] The second motor 45 is fixedly connected to one end of the connecting rod 42, and the output end of the second motor 45 is fixedly connected to the scraper plate 44;

[0056] A docking rod 47, the docking rod 47 slides inside the connecting rod 42;

[0057] A connecting pin 48 is slidably connected to one side of the docking rod 47 and the connecting rod 42 .

[0058] In the present invention, preferably, the connecting rod 42 and the sliding block 43 slide through the sliding groove provided in the stamping plate 3;

[0059] There are two groups of docking rods 47 which are symmetrically arranged, and the scraping plate 44 is rotatably connected to the inner side of the connecting rod 42 .

[0060] In the present invention, preferably, a compensation component 5 is provided inside the scraper plate 44 for spacing compensation when cleaning the surface of the upper mold 6 .

[0061] In the present invention, preferably, the compensation assembly 5 includes a scraper 50 sliding on the middle of the scraper plate 44, and push columns 51 are fixedly connected to both sides of the scraper 50, and a moving block 52 is fixedly connected to one end of the push column 51 away from the scraper 50, and the top of the moving block 52 is in contact with a guide block 53, and the guide block 53 is fixedly connected to the surface of the stamping plate 3;

[0062] Two sets of guide posts 55, the two sets of guide posts 55 are fixed in the slide grooves opened on both sides of the scraper plate 44, the surfaces of the guide posts 55 are slidably connected with the sliders 54, and the guide posts 55 are sleeved with a return spring 56;

[0063] The limiting column 57 is fixedly connected in the connecting rod 42 , and the limiting column 57 slides in the pushing column 51 .

[0064] It should be noted that the moving block 52 is triangular in shape and matches the inclined surface on one side of the guide block 53 .

[0065] In the present invention, preferably, the slider 54 slides through the slide groove provided in the wiper plate 44, one end of the return spring 56 is fixed to the lower surface of the slider 54, and the other end of the return spring 56 is fixed to the slide groove provided in the wiper plate 44;

[0066] The push column 51 moves inside the connecting rod 42;

[0067] The push column 51 slides in the sliding groove of the punching plate 3 .

[0068] During the implementation process, a motor 40 is set, and the output end of the motor 40 drives the reciprocating screw 41 to rotate along the middle part of the stamping plate 3. The reciprocating screw 41 rotates to drive the sliding block 43, and the sliding block 43 drives the connecting rod 42, the scraping plate 44, and the collecting unit 46 to move along the slide groove of the stamping plate 3. The scraping plate 44 drives the scraper 50, the push column 51, the moving block 52, and the surface of the guide block 53. When the moving block 52 moves to the end of the inclined surface of the guide block 53, the scraper plate 44 contacts the surface of the upper mold 6. The scraper 50 and the slider 54 are closer to the surface of the upper mold 6 through the reverse thrust of the return spring 56 along the guide column 55 and the sliding groove opened by the scraper plate 44, so that the scraper 50 maintains a height difference when in contact with the upper mold 6 by squeezing the return spring 56, so as to avoid interference between the scraper 50 and the upper mold 6 when in contact;

[0069] A second motor 45 is provided, and the output end of the second motor 45 drives the scraper plate 44 and the scraper blade 50 to rotate and tilt to one side along the connecting rod 42, and the scraper plate 44 drives the push column 51 to rotate and tilt along the connecting rod 42 and the limit column 57, so that the scraper plate 44 and the scraper blade 50 are tilted and fitted to the surface of the upper mold 6, and the scraper plate 44 and the upper mold 6 follow the reciprocating screw rod 41 to move the surface of the upper mold 6 to reciprocate and guide the debris into the collecting unit 46, so that the scraper plate 44 and the scraper blade 50 can adjust the gap between the upper mold 6 and fit the upper mold 6 more closely, so as to improve the efficiency and cleanliness of the surface cleaning of the upper mold 6, and can effectively prevent the debris from falling into the lower mold 7 due to gravity;

[0070] Pull the connecting pin 48, the connecting pin 48 is taken out along the connecting rod 42 and the docking rod 47, pull the collecting unit 46, the collecting unit 46 is slid out along the connecting rod 42 with the docking rod 47, so as to discharge the debris in the collecting unit 46.

[0071] Embodiment 2

[0072] In the present invention, preferably, the base 13 is fixedly installed on the base 1, and the base 13 is slidably connected with connecting columns 10 on all sides, one side of the connecting column 10 is fixedly connected to the upper limit plate 9, and the other side of the connecting column 10 is fixedly connected to the lower limit plate 12, and a buffer spring 11 is sleeved on the connecting column 10, one end of the buffer spring 11 is fixedly connected to the surface of the base 13, and the other end of the buffer spring 11 is fixedly connected to the lower surface of the upper limit plate 9.

[0073] It should be noted that a receiving groove for receiving the collecting unit 46 is provided on one side of the base 13 to reduce interference when the upper mold 6 and the lower mold 7 are matched.

[0074] In the present invention, preferably, a disengagement assembly 8 is provided on the lower mold 7 to achieve disengagement of the aluminum plate after forming.

[0075] In the present invention, preferably, the disengagement assembly 8 includes a rack 80 fixed to one end of the stamping plate 3 and symmetrically arranged on both sides;

[0076] A limit plate 83, the limit plate 83 is fixed in the base 13, a transmission shaft 82 is rotatably mounted in the middle of the limit plate 83, a rotating block 84 is fixedly mounted on the surface of the transmission shaft 82, and a gear 81 is fixedly mounted on one end of the transmission shaft 82;

[0077] A positioning plate 86, the positioning plate 86 is fixedly connected to the lower mold 7, a moving column 85 is slidably connected to the middle of the positioning plate 86, and a fixed plate 87 is fixedly connected to the surface of the moving column 85;

[0078] The second return spring 88 is sleeved on the moving column 85 .

[0079] In the present invention, preferably, the movable column 85 is slidably connected to the lower mold 7, an aluminum plate is placed on the surface of the movable column 85, one end of the return spring 88 is fixed to the lower surface of the positioning plate 86, and the other end of the return spring 88 is fixed to the lower surface of the fixed plate 87;

[0080] The positioning plate 86 , the fixing plate 87 and the second return spring 88 are all arranged in the lower mold 7 .

[0081] During the implementation process, an aluminum plate is placed on the surface of a movable column 85, and a hydraulic cylinder 2 is arranged. The output end of the hydraulic cylinder 2 pulls the stamping plate 3 and the upper mold 6 downward, and the stamping plate 3 squeezes the upper limit plate 9 to reduce the impact force through the buffering of the buffer spring 11. One side of the stamping plate 3 moves downward with the rack 80 and meshes with the gear 81, so that the gear 81 rotates forward, and the gear 81 rotates along the limit plate 83 with the transmission shaft 82, and the transmission shaft 82 rotates with the rotating block 84. The rotating block 84 rotates to make the movable column 85 and the fixed plate 87 move downward through the reverse thrust of the reset spring 2 88, and the movable column 85 is received in the lower mold 7 and the aluminum plate moves to the horizontal plane of the lower mold 7 through the upper mold 6 for stamping;

[0082] The hydraulic cylinder 2 is set in reverse, and the output end of the hydraulic cylinder 2 moves the stamping plate 3 and the upper mold 6 upward. One side of the stamping plate 3 moves upward with the rack 80 to mesh with the gear 81, so that the gear 81 rotates, and the gear 81 rotates along the limit plate 83 with the transmission shaft 82, and the transmission shaft 82 rotates with the rotating block 84. The rotating block 84 rotates to push the moving column 85 and squeeze the return spring 88 through the fixed plate 87. The moving column 85 moves upward along the lower mold 7 to push the stamped aluminum plate out of the lower mold 7, so that the aluminum plate can be formed according to the upper mold. Tool 6 is used for stamping movement to control the state of the aluminum plate, so that the aluminum plate can be quickly detached after stamping is completed, so as to improve the processing efficiency and push it out at the same time, avoiding the bending of the aluminum plate caused by uneven force due to traditional spring push-out, and pushing the moving column 85 to steadily eject the aluminum plate. Compared with the spring ejection, the mechanical linkage demoulding force is uniform and controllable, which significantly reduces the risk of bending of the aluminum plate. The reset spring 88 cooperates with the fixed plate 87 to ensure smooth reset of the moving column 85 and ensure the continuous stamping rhythm. It is used in conjunction with the upper mold 6 to ensure that the aluminum plate is synchronously detached when the upper mold 6 moves to the upper limit position, so as to improve the efficiency of continuous forming of the aluminum plate.

[0083] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A continuous forming die for automobile aluminum plates, characterized in that: comprising a base (1); A driving mechanism, the driving mechanism being symmetrically arranged around the base (1), and having an output end connected to a stamping plate (3); The upper mold (6) and the lower mold (7) are respectively fixed to the stamping plate (3) and the base (13) of the base (1), and the upper mold (6) and the lower mold (7) are driven by a driving mechanism to cooperate with each other to stamp the aluminum plate into shape; The cleaning assembly (4) comprises a scraping plate (44) and a collecting unit (46) arranged on the stamping plate (3); the scraping plate (44) cleans the surface of the upper mold (6) through reciprocating motion and guides the debris to the collecting unit (46).

2. The automotive aluminum plate continuous forming die according to claim 1, characterized in that: The cleaning component (4) also includes: A driving motor (40) is fixedly connected to one side of the punching plate (3), and an output end thereof is connected to a reciprocating screw rod (41); A sliding block (43) is threadedly connected to the reciprocating screw rod (41) and drives the connecting rod (42) to move; Motor 2 (45) is fixedly connected to one end of the connecting rod (42) and the output end of the motor is fixedly connected to the scraper plate (44); The docking rod (47) slides inside the connecting rod (42).

3. The automotive aluminum plate continuous forming die according to claim 2, characterized in that: The connecting rod (42) is slidably matched with the stamping plate (3) through a sliding groove, and comprises a symmetrically arranged docking rod (47) and a detachable connecting pin (48).

4. The automotive aluminum plate continuous forming die according to claim 1, characterized in that: A compensation component (5) is arranged inside the scraping plate (44) for compensating the spacing when cleaning the surface of the upper mold (6).

5. The automotive aluminum plate continuous forming die according to claim 4, characterized in that: The compensation component (5) comprises: The scraper (50) is fixedly connected to both sides of the push column (51), and one end of the push column (51) is fixedly connected to a moving block (52), and the moving block (52) is in contact with a guide block (53); A guide column (55) is fixed inside the scraper plate (44) and is slidably connected to the slider (54) on its surface, and is externally sleeved with a return spring (56); The limiting column (57) is fixedly connected in the connecting rod (42) and slides in the pushing column (51).

6. The automotive aluminum plate continuous forming die according to claim 5, characterized in that: The return spring 1 (56) is fixedly connected between the slider (54) and the wiper plate (44); The pushing column (51) moves inside the connecting rod (42).

7. The automotive aluminum plate continuous forming die according to claim 1, characterized in that: A buffer mechanism is installed around the base (13), and the buffer mechanism includes an upper limit plate (9) and a lower limit plate (12), and the two are fixedly connected via a connecting column (10); The buffer spring (11) is fixedly connected between the upper limit plate (9) and the base (13).

8. The automotive aluminum plate continuous forming die according to claim 7, characterized in that: The lower mold (7) is provided with a disengagement component (8) to achieve disengagement of the aluminum plate after forming.

9. The automotive aluminum plate continuous forming die according to claim 8, characterized in that: The disengagement assembly (8) comprises: A rack (80) and a gear (81) meshing with each other; A limit plate (83) is fixedly connected to the base (13) and a transmission shaft (82) is movably installed in the middle thereof, a rotating block (84) is fixedly connected to the transmission shaft (82) and a gear (81) is fixedly connected to one side thereof; The positioning plate (86) is fixedly connected to the lower mold (7) and the middle part of the movable column (85) is slidably connected to the fixed plate (87), and the movable column (85) is sleeved with a second return spring (88).

10. The automotive aluminum plate continuous forming die according to claim 9, characterized in that: The movable column (85) is slidably connected to the lower mold (7); The second return spring (88) is fixed between the positioning plate (86) and the fixed plate (87).

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