Aluminum alloy automobile sheet metal part forming system and method

Abstract

The invention relates to automobile sheet metal parts, in particular to an aluminum alloy automobile sheet metal part forming system and method.The method comprises the steps that firstly, two buckling cavities make contact with each other, and an aluminum alloy plate is placed in the two buckling cavities; secondly, the two buckling plates are buckled on the two buckling cavities downwards, and the two forming molds II and the two forming molds I conduct extrusion forming on the two sides of the aluminum alloy plate; thirdly, the four extrusion dies are staggered to cut off the middle of the aluminum alloy plate; fourthly, the two buckling cavities and the two buckling plates are separated, and the two injection molding buckling plates move to the positions between the two buckling cavities and the two buckling plates; fifthly, the side edges of the metal plate are extruded through the extrusion dies on the upper side and the lower side to form a connecting insertion plate, and the connecting insertion plate is punched through a plurality of punching columns on the upper side and the lower side to form connecting holes; sixthly, the two injection molding buckle plates are buckled, and injection molding is conducted between the two metal plates to form an injection molding part; and different structure requirements of the automobile are met.

Description

Technical Field

[0001] This invention relates to automotive sheet metal parts, and more specifically to an aluminum alloy automotive sheet metal parts forming system and method. Background Technology

[0002] Automotive sheet metal parts are metal parts on the surface of automobiles, used to repair damage to the exterior of the vehicle body or replace aging components. Many existing technologies exist for manufacturing automotive sheet metal parts, such as patent number CN217617219U, which discloses a trimming and bending mechanism for processing automotive sheet metal parts. This mechanism relates to the field of automotive sheet metal parts processing technology and includes a base, a top plate, and a bending plate. A telescopic rod is slidably connected inside a fixing rod, and a telescopic plate is slidably connected inside a fixing seat. A positioning plate is fixedly connected to the upper surface of the telescopic plate, and a second guide rod is slidably connected inside a first guide rod. A bending groove adapted to the bending block is formed on the upper surface of the bending plate. However, with technological advancements and increasing requirements for automotive body panels, some automotive sheet metal parts require the connection of sheet metal and injection-molded parts to meet different structural needs of automobiles. Existing technologies typically use glue for connection, which is unstable. Therefore, a forming system capable of connecting aluminum alloy automotive sheet metal and injection-molded parts is needed. Summary of the Invention

[0003] The purpose of this invention is to provide an aluminum alloy automotive sheet metal parts forming system and method, which can prepare a part that connects aluminum alloy automotive sheet metal and injection molded parts, thereby meeting different structural requirements of automobiles.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A forming system for aluminum alloy automotive sheet metal parts includes a bottom bracket, a top bracket fixedly connected to the bottom bracket, a lead screw I rotatably connected to the bottom bracket, and a lead screw II rotatably connected to the top bracket. The threads at both ends of the lead screw I have opposite directions, and the threads at both ends of the lead screw II have opposite directions.

[0006] A power mechanism I for rotating a drive screw I is fixedly connected to the bottom bracket. The power mechanism I is preferably a servo motor. A power mechanism II for rotating a screw II is fixedly connected to the bottom bracket. The power mechanism II is preferably a servo motor.

[0007] Two sliding brackets I are slidably connected to the bottom support. The two sliding brackets I are respectively connected to the two ends of the lead screw I by threads. Each sliding bracket I is fixedly connected to a telescopic mechanism I. Each telescopic mechanism I is fixedly connected to a snap-fit ​​cavity at its telescopic end. Each snap-fit ​​cavity is fixedly connected to a forming mold I.

[0008] Two sliding brackets II are slidably connected to the top bracket. The two sliding brackets II are respectively connected to the two ends of the lead screw II by threads. Each sliding bracket II is fixedly connected to a telescopic mechanism II. Each telescopic mechanism II is fixedly connected to a snap-fit ​​plate. Each snap-fit ​​plate is fixedly connected to a forming mold II. The snap-fit ​​cavity and the snap-fit ​​plate can snap together. The forming mold I and the forming mold II cooperate to extrude and form the sheet metal.

[0009] Telescopic mechanism Ⅲ is fixedly connected to each of the two sliding brackets Ⅰ and the two sliding brackets Ⅱ. Telescopic mechanism Ⅳ is fixedly connected to each of the two sliding brackets Ⅰ and the two sliding brackets Ⅱ. An extrusion die is fixedly connected to the telescopic end of each telescopic mechanism Ⅲ. Multiple stamping columns are fixedly connected to the telescopic end of each telescopic mechanism Ⅳ. The stamping columns are slidably connected to the corresponding extrusion die.

[0010] The two extrusion dies located on the upper side are located inside the two forming dies II, and the two extrusion dies located on the lower side are located inside the two forming dies I.

[0011] The extrusion dies on the upper and lower sides can extrude the sides of the sheet metal to form a connecting plate, and multiple stamping columns on the upper and lower sides stamp the connecting plate to form connecting holes.

[0012] Both the bottom bracket and the top bracket are fixedly connected to connecting brackets, and both connecting brackets are fixedly connected to telescopic mechanism V. Both telescopic mechanisms V are fixedly connected to the telescopic ends of the telescopic end, and each telescopic mechanism V is fixedly connected to an injection molding plate. Each injection molding plate is fixedly connected to an injection molding pipe, and the two injection molding plates can be interlocked.

[0013] A method for forming aluminum alloy automotive sheet metal parts, the method comprising the following steps:

[0014] Step 1: The two interlocking cavities come into contact with each other, and the aluminum alloy sheet is placed inside the two interlocking cavities;

[0015] Step 2: The two snap-fit ​​plates snap downwards onto the two snap-fit ​​cavities, and the two forming molds II and I extrude and form the two sides of the aluminum alloy sheet.

[0016] Step 3: The four extrusion dies are staggered to cut the middle of the aluminum alloy sheet;

[0017] Step 4: The two fastening cavities and the two fastening plates separate, and the two injection-molded fastening plates move between the two fastening cavities and the two fastening plates;

[0018] Step 5: The extrusion dies on the upper and lower sides extrude the sides of the sheet metal to form a connecting plate, and multiple stamping columns on the upper and lower sides stamp the connecting plate to form connecting holes.

[0019] Step Six: The two injection-molded snap-fit ​​plates are fastened together, and injection molding is performed between the two sheet metal parts to form an injection-molded part. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the aluminum alloy automotive sheet metal parts forming system method of the present invention;

[0022] Figure 2 This is a schematic diagram of the aluminum alloy automotive sheet metal parts forming system of the present invention;

[0023] Figure 3 This is a side view structural schematic diagram of the aluminum alloy automotive sheet metal parts forming system of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection structure between the bottom support and the top support of the present invention;

[0025] Figure 5 This is a schematic diagram of the snap-fit ​​cavity structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection structure between the snap-fit ​​cavity and the forming mold I of the present invention;

[0027] Figure 7 This is a schematic diagram of the extrusion die structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the fastening plate and forming mold II of the present invention;

[0029] Figure 9 This is a schematic diagram of the connection structure between the extrusion die and the snap-fit ​​plate of the present invention;

[0030] Figure 10 and 11 This is a schematic diagram of the injection-molded snap-on panel structure of the present invention;

[0031] Figure 12 This is a schematic diagram of the sheet metal and injection molded part connection structure of the present invention;

[0032] Figure 13 This is a schematic cross-sectional view of the connection between the sheet metal and injection molded parts of the present invention;

[0033] Figure 14 This is a schematic diagram of the sheet metal structure of the present invention.

[0034] In the picture:

[0035] Bottom bracket 11; Lead screw I 12; Top bracket 13; Lead screw II 14;

[0036] Sliding bracket I 21; Telescopic mechanism I 22; Fastening cavity 23; Forming mold I 24;

[0037] Sliding bracket II 31; Telescopic mechanism II 32; Fastening plate 33; Forming mold II 34;

[0038] Telescopic mechanism III 41; Extrusion die 42; Telescopic mechanism IV 43; Stamping column 44;

[0039] 51 connecting bracket; 52 telescopic mechanism V; 53 injection molded buckle plate; 54 injection molded pipe;

[0040] Sheet metal 61; Connecting plate 62; Connecting hole 63;

[0041] Injection molded part 71. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings.

[0043] like Figures 2 to 14 As shown below, the structure and function of an aluminum alloy automotive sheet metal parts forming system will be described in detail.

[0044] A forming system for aluminum alloy automotive sheet metal parts includes a bottom bracket 11, a top bracket 13 fixedly connected to the bottom bracket 11, a lead screw I 12 rotatably connected to the bottom bracket 11, and a lead screw II 14 rotatably connected to the top bracket 13. The threads at both ends of the lead screw I 12 are in opposite directions, and the threads at both ends of the lead screw II 14 are in opposite directions.

[0045] A power mechanism I for rotating a drive screw I 12 is fixedly connected to the bottom bracket 11. The power mechanism I is preferably a servo motor. A power mechanism II for rotating a screw II 14 is fixedly connected to the bottom bracket 11. The power mechanism II is preferably a servo motor.

[0046] Two sliding brackets I21 are slidably connected to the bottom bracket 11. The two sliding brackets I21 are respectively connected to the two ends of the lead screw I12 by threads. Each sliding bracket I21 is fixedly connected to a telescopic mechanism I22. Each telescopic mechanism I22 is fixedly connected to a snap-fit ​​cavity 23 at its telescopic end. Each snap-fit ​​cavity 23 is fixedly connected to a forming mold I24.

[0047] Two sliding brackets II31 are slidably connected to the top bracket 13. The two sliding brackets II31 are respectively threaded to the two ends of the lead screw II14. Each sliding bracket II31 is fixedly connected to a telescopic mechanism II32. Each telescopic mechanism II32 is fixedly connected to a fastening plate 33 at its telescopic end. Each fastening plate 33 is fixedly connected to a forming mold II34. The fastening cavity 23 and the fastening plate 33 can fasten each other. The forming mold I24 and the forming mold II34 cooperate to extrude and form the sheet metal 61.

[0048] Telescopic mechanism III 41 is fixedly connected to each of the two sliding brackets I 21 and the two sliding brackets II 31. Telescopic mechanism IV 43 is fixedly connected to each of the two sliding brackets I 21 and the two sliding brackets II 31. An extrusion die 42 is fixedly connected to the telescopic end of each telescopic mechanism III 41. Multiple stamping columns 44 are fixedly connected to the telescopic end of each telescopic mechanism IV 43. The stamping columns 44 are slidably connected to the corresponding extrusion die 42.

[0049] The two extrusion dies 42 located on the upper side are located inside the two forming dies II 34, and the two extrusion dies 42 located on the lower side are located inside the two forming dies I 24.

[0050] The extrusion dies 42 on the upper and lower sides can extrude the sides of the sheet metal 61 to form a connecting plate 62, and the multiple stamping columns 44 on the upper and lower sides stamp the connecting plate 62 to form connecting holes 63.

[0051] Both the bottom bracket 11 and the top bracket 13 are fixedly connected to a connecting bracket 51. Both connecting brackets 51 are fixedly connected to a telescopic mechanism V 52. Both telescopic mechanisms V 52 are fixedly connected to their telescopic ends. Each telescopic mechanism V 52 is fixedly connected to an injection-molded buckle plate 53. Each injection-molded buckle plate 53 is fixedly connected to an injection-molded pipe 54. The two injection-molded buckles 53 can be interlocked.

[0052] To meet the different structural requirements of automobiles, the aluminum alloy sheet to be formed is placed in two interlocking cavities 23 during use. The power mechanism I is activated, and its output shaft begins to rotate. This output shaft drives the lead screw I12 to rotate. The threads at both ends of the lead screw I12 rotate in opposite directions. As the lead screw I12 rotates, it causes the two sliding supports I21 to move closer or further apart. The two sliding supports I21 then come into contact with each other. Figure 5 As shown, aluminum alloy is placed inside the two sliding brackets I 21. Power mechanism II is activated, and its output shaft begins to rotate. This rotation drives lead screw II 14 to rotate, which in turn drives the two sliding brackets II 31 to move via a threaded connection. The two sliding brackets II 31 move closer to or further away from each other, eventually coming into contact. Figure 8 As shown;

[0053] The upper side of forming mold I 24 can be set into different die-casting shapes according to different usage requirements, and the lower side of forming mold II 34 can be set into different die-casting shapes according to different usage requirements. Thus, forming mold I 24 and forming mold II 34 can cooperate with each other to extrude aluminum alloy sheets.

[0054] Activate telescopic mechanisms I22, II32, III41, and IV43. These mechanisms can be hydraulic cylinders or electric push rods. The telescopic end of telescopic mechanism I22 drives the locking cavity 23 to move upward, which in turn drives the forming mold I24 to move upward. The telescopic end of telescopic mechanism II32 drives the locking plate 33 to move downward, which in turn drives the forming mold II34 to move downward. The telescopic end of telescopic mechanism III41 drives the extrusion mold 42 to move, so that the lower extrusion mold 42 and the forming mold I24 move synchronously, and the upper extrusion mold 42 and the forming mold II34 move synchronously. The telescopic end of telescopic mechanism IV43 drives the stamping column 44 to move, so that the stamping column 44 and the extrusion mold 42 move synchronously.

[0055] Two snap-fit ​​plates 33 are snapped onto two snap-fit ​​cavities 23 respectively. Forming mold I 24 and forming mold II 34 extrude the aluminum alloy sheet, so that the two sides of the aluminum alloy sheet are extruded and formed.

[0056] Activate the telescopic mechanisms I22, II32, III41, and IV43 on the left side, causing their telescopic ends to drive the forming mold I24, extrusion mold 42, and stamping column 44 on the left side to move upward synchronously. Activate the telescopic mechanisms I22, II32, III41, and IV43 on the right side, causing their telescopic ends to drive the forming mold I24, extrusion mold 42, and stamping column 44 on the right side to move downward synchronously, thus stamping and cutting the middle of the aluminum alloy sheet.

[0057] Alternatively, activate the telescopic mechanisms I22, II32, III41, and IV43 on the right side, causing their telescopic ends to drive the forming mold I24, extrusion mold 42, and stamping column 44 on the right side to move downwards synchronously. Activate the telescopic mechanisms I22, II32, III41, and IV43 on the left side, causing their telescopic ends to drive the forming mold I24, extrusion mold 42, and stamping column 44 on the left side to move upwards synchronously, thus stamping and cutting the middle of the aluminum alloy sheet.

[0058] The movement method here is not specifically limited, as long as it can cut the middle of the aluminum alloy sheet. Start power mechanism I and power mechanism II. The output shaft of power mechanism I drives lead screw I12 to rotate. When lead screw I12 rotates, it causes the two fastening cavities 23 to separate. The output shaft of power mechanism II drives lead screw II14 to rotate. When lead screw II14 rotates, it causes the two fastening plates 33 to separate, thereby causing the two formed sheet metal 61 to separate.

[0059] Start the telescopic mechanism III41. The telescopic end of the telescopic mechanism III41 drives the extrusion mold 42 to move. The extrusion molds 42 on both the upper and lower sides extrude the aluminum alloy sheet, so that the inner side of the sheet metal 61 forms the connecting plate 62. At the same time, start the telescopic mechanism IV43. The telescopic end of the telescopic mechanism IV43 drives the stamping column 44 to move, so that the stamping columns 44 on both the upper sides move simultaneously, moving upward or downward synchronously, to stamp the connecting plate 62, so that multiple connecting holes 63 are formed on the connecting plate 62. The telescopic ends of the telescopic mechanism IV43 and the telescopic mechanism III41 are reset. The material of the stamped connecting holes 63 is temporarily stored in the extrusion mold 42 located on the lower side.

[0060] The telescopic mechanism V52 is activated. V52 can be a hydraulic cylinder or an electric push rod. The telescopic end of the telescopic mechanism V52 drives the injection-molded snap-fit ​​plates 53 to move. The two injection-molded snap-fit ​​plates 53 move closer to each other, moving between the two snap-fit ​​cavities 23 and the two snap-fit ​​plates 33, where they snap together. Injection molding is then performed into the two injection-molded snap-fit ​​plates 53 through the injection molding pipe 54, thereby forming an injection-molded part 71 between the two sheet metal parts 61. The injection-molded part 71 can be made of rubber or plastic material. Figure 12 As shown;

[0061] Because of the multiple connecting holes 63 between the two sheet metal parts 61 and the injection molded part 71 formed in this way, the injection molding process will also fill these multiple connecting holes 63, thus ensuring the connection between the two sheet metal parts 61 and the injection molded part 71. Meanwhile, as... Figure 13 As shown, since the thickness of the connecting plate 62 is less than that of the sheet metal 61, it not only provides a certain space for the connection between the injection molded part 71 and the two sheet metals 61, but also provides a certain space for the injection molding process, ensuring that the injection molded part can enter the multiple connecting holes 63. At the same time, it also ensures that the thickness of the injection molded part 71 and the sheet metal 61 is the same, and there is no protrusion, thus ensuring the aesthetic appearance of the connection between the injection molded part 71 and the sheet metal 61.

[0062] like Figure 1 As shown below, the steps and functions of a forming method for aluminum alloy automotive sheet metal parts will be explained in detail.

[0063] A method for forming aluminum alloy automotive sheet metal parts, the method comprising the following steps:

[0064] Step 1: The two snap-fit ​​cavities 23 come into contact with each other, and the aluminum alloy sheet is placed inside the two snap-fit ​​cavities 23;

[0065] Step 2: The two snap-fit ​​plates 33 snap downwards onto the two snap-fit ​​cavities 23, and the two forming molds II 34 and two forming molds I 24 extrude and form the two sides of the aluminum alloy sheet.

[0066] Step 3: The four extrusion dies 42 are staggered to cut the middle of the aluminum alloy sheet;

[0067] Step 4: The two fastening cavities 23 and the two fastening plates 33 separate, and the two injection-molded fastening plates 53 move between the two fastening cavities 23 and the two fastening plates 33;

[0068] Step 5: The extrusion dies 42 on the upper and lower sides extrude the sides of the sheet metal 61 to form the connecting plate 62, and the multiple stamping columns 44 on the upper and lower sides stamp the connecting plate 62 to form the connecting hole 63.

[0069] Step 6: The two injection-molded snap-fit ​​plates 53 are snapped together, and injection molding is performed between the two sheet metal parts 61 to form the injection-molded part 71.

Claims

1. A forming system for aluminum alloy automotive sheet metal parts, comprising two snap-fit ​​cavities (23), characterized in that: Each snap-fit ​​cavity (23) is fixedly connected to a forming mold I (24), and a snap-fit ​​plate (33) is provided on the upper side of each of the two snap-fit ​​cavities (23). A forming mold II (34) is fixedly connected to each snap-fit ​​plate (33). The snap-fit ​​cavity (23) and the snap-fit ​​plate (33) can snap together. The forming mold I (24) and the forming mold II (34) cooperate to extrude and form the sheet metal (61).

2. The aluminum alloy automotive sheet metal forming system according to claim 1, characterized in that: It also includes a bottom bracket (11), a top bracket (13) is fixedly connected to the bottom bracket (11), a lead screw I (12) is rotatably connected to the bottom bracket (11), and a lead screw II (14) is rotatably connected to the top bracket (13).

3. The aluminum alloy automotive sheet metal forming system according to claim 2, characterized in that: The threads at both ends of the lead screw I (12) are in opposite directions, and the threads at both ends of the lead screw II (14) are in opposite directions.

4. The aluminum alloy automotive sheet metal parts forming system according to claim 3, characterized in that: The bottom bracket (11) is slidably connected to two sliding brackets I (21). The two sliding brackets I (21) are respectively threaded to the two ends of the lead screw I (12). Each sliding bracket I (21) is fixedly connected to a telescopic mechanism I (22), and each telescopic mechanism I (22) is fixedly connected to a snap-fit ​​cavity (23) at its telescopic end.

5. The aluminum alloy automotive sheet metal forming system according to claim 4, characterized in that: The top bracket (13) is slidably connected to two sliding brackets II (31). The two sliding brackets II (31) are respectively threaded to the two ends of the lead screw II (14). Each sliding bracket II (31) is fixedly connected to a telescopic mechanism II (32), and each telescopic mechanism II (32) is fixedly connected to a fastening plate (33) at its telescopic end.

6. The aluminum alloy automotive sheet metal forming system according to claim 5, characterized in that: Telescopic mechanism Ⅲ (41) is fixedly connected to each of the two sliding brackets Ⅰ (21) and the two sliding brackets Ⅱ (31). Telescopic mechanism Ⅳ (43) is fixedly connected to each of the two sliding brackets Ⅰ (21) and the two sliding brackets Ⅱ (31). An extrusion die (42) is fixedly connected to the telescopic end of each telescopic mechanism Ⅲ (41). Multiple stamping columns (44) are fixedly connected to the telescopic end of each telescopic mechanism Ⅳ (43). The stamping columns (44) are slidably connected to the corresponding extrusion die (42).

7. The aluminum alloy automotive sheet metal forming system according to claim 6, characterized in that: The two extrusion dies (42) located on the upper side are located inside the two forming dies II (34), and the two extrusion dies (42) located on the lower side are located inside the two forming dies I (24).

8. The aluminum alloy automotive sheet metal forming system according to claim 6, characterized in that: The extrusion dies (42) on the upper and lower sides can extrude the sides of the sheet metal (61) to form a connecting plate (62), and the multiple stamping columns (44) on the upper and lower sides stamp the connecting plate (62) to form connecting holes (63).

9. The aluminum alloy automotive sheet metal forming system according to claim 8, characterized in that: A connecting bracket (51) is fixedly connected to both the bottom bracket (11) and the top bracket (13). A telescopic mechanism V (52) is fixedly connected to both connecting brackets (51). A molded buckle plate (53) is fixedly connected to the telescopic end of both telescopic mechanisms V (52). A molded pipe (54) is fixedly connected to each molded buckle plate (53). The two molded buckles (53) can be interlocked.

10. A method for forming aluminum alloy automotive sheet metal parts using the aluminum alloy automotive sheet metal forming system according to claim 9, characterized in that: The method includes the following steps: Step 1: The two interlocking cavities (23) come into contact with each other, and the aluminum alloy sheet is placed inside the two interlocking cavities (23); Step 2: The two snap-fit ​​plates (33) snap downwards onto the two snap-fit ​​cavities (23), and the two forming molds II (34) and two forming molds I (24) extrude and form the two sides of the aluminum alloy sheet. Step 3: The four extrusion dies (42) are staggered to cut the middle of the aluminum alloy sheet; Step 4: The two fastening cavities (23) and the two fastening plates (33) separate, and the two injection-molded fastening plates (53) move between the two fastening cavities (23) and the two fastening plates (33); Step 5: The extrusion molds (42) on the upper and lower sides extrude the sides of the sheet metal (61) to form a connecting plate (62), and the multiple stamping columns (44) on the upper and lower sides stamp the connecting plate (62) to form connecting holes (63). Step 6: The two injection-molded snap-fit ​​plates (53) are snapped together, and injection molding is performed between the two sheet metal pieces (61) to form an injection molded part (71).

Images