Magnesium-aluminum alloy die for automobile plate

Abstract

The utility model provides a magnesium-aluminum alloy die for an automobile plate. The magnesium-aluminum alloy die comprises an upper die frame, a lower die frame, a die core and a forming cavity, the utility model relates to the technical field of dies. By arranging the positioning mechanism, a screwing block can be rotated to drive a driving rod and a transmission disc to rotate around a bearing, when the transmission disc rotates, a transmission rod can be driven to rotate, the surface of the transmission rod extrudes the interior of a transmission groove, and two movable blocks can move towards the side close to a spring along tracks of sliding blocks and sliding grooves; during installation, the mold core is installed on the top of the lower mold frame by aligning the positions of the shell and the butt joint groove, the shell enters the butt joint groove, then the screwing block is loosened, elastic force generated by the spring can push the movable block and the positioning rod to move towards the side away from the spring, and then the mold core can be taken down. And the positioning rods enter the corresponding positioning grooves, so that the mold core is mounted, and the effect of facilitating replacement is achieved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a magnesium-aluminum alloy mold for automotive sheet metal parts. Background Technology

[0002] A mold is a set of molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts.

[0003] During the processing of automotive sheet metal parts, molds are used to die-cast magnesium-aluminum alloys. For different models of automotive sheet metal parts, the mold core needs to be changed according to the model of the automotive sheet metal parts. The existing mold cores are generally fixed to the lower mold frame by bolts. The threads on the surface of the bolts are easy to wear, making it difficult to disassemble and replace them later, thus reducing the practicality of the mold. Utility Model Content

[0004] The purpose of this utility model is to provide a magnesium-aluminum alloy mold for automotive sheet metal parts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A magnesium-aluminum alloy mold for automotive sheet metal includes an upper mold frame, a lower mold frame, a mold core, and a forming cavity. The forming cavity is located on the top of the mold core, the mold core is located on the top of the lower mold frame, the upper mold frame is located on the top of the mold core, two housings are fixedly connected to the bottom of the mold core, and a mating groove for cooperating with the housing is provided on the top of the lower mold frame.

[0007] A positioning mechanism is movably disposed inside the housing and is capable of fixing the mold core and the lower mold frame;

[0008] The positioning mechanism includes a spring disposed inside the housing, with movable blocks fixedly connected to both ends of the spring, a positioning rod fixedly connected to one side of the movable block, one end of the positioning rod extending through to the outside of the housing, a positioning groove for cooperating with the positioning rod being formed on the inner wall of the mating groove, and a driving mechanism disposed on one side of the housing.

[0009] Preferably, the driving mechanism includes a driving rod disposed on one side of the housing, one end of the driving rod penetrating into the interior of the housing and fixedly connected to a transmission disk, two transmission rods fixedly connected to one side of the transmission disk, and a transmission groove for cooperating with the transmission rods is provided on one side of the movable block.

[0010] Preferably, a rotating block is fixedly connected to the side of the drive rod away from the transmission disc, and the rotating block has symmetrical rotating grooves on its circumferential side.

[0011] Preferably, the surface of the drive rod is fitted with a bearing, and the turning block is rotatably connected to the housing through the bearing.

[0012] Preferably, the top and bottom of the movable block are fixedly connected to sliding blocks, and the inner wall of the housing is provided with sliding grooves that cooperate with the sliding blocks.

[0013] Preferably, dovetail blocks are fixedly connected to the sides of the two shells that are close to each other, and the inner wall of the docking groove is provided with a dovetail groove that cooperates with the dovetail blocks.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, by setting a positioning mechanism, enables the drive rod and transmission disc to rotate around the bearing by rotating the screwing block. When the transmission disc rotates, it drives the transmission rod to rotate. The surface of the transmission rod presses against the inside of the transmission groove, causing the two movable blocks to move along the trajectory of the sliding block and the sliding groove towards the side closer to the spring. The movable blocks will drive the positioning rod to retract into the housing, after which the mold core can be removed. During installation, the mold core is installed on the top of the lower mold frame by aligning the housing with the docking groove, so that the housing enters the docking groove. Then, the screwing block is released, and the elastic force generated by the spring will push the movable block and the positioning rod to the side away from the spring, so that the positioning rod enters the corresponding positioning groove, completing the installation of the mold core and facilitating replacement.

[0016] 2. By setting a driving mechanism, this utility model can drive the driving rod and the transmission disc to rotate around the bearing by rotating the twisting block. When the transmission disc rotates, it will drive the transmission rod to rotate. The surface of the transmission rod presses against the inside of the transmission groove, which will cause the two movable blocks to move towards the side closer to the spring along the trajectory of the sliding block and the sliding groove. The movable blocks will drive the positioning rod to retract into the inside of the housing, which facilitates the driving function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is an exploded perspective view of the present invention;

[0019] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a perspective view of the shell of this utility model in cross-section;

[0021] Figure 5 This is an exploded perspective view of the positioning mechanism and the driving mechanism of this utility model;

[0022] Figure 6 This is a diagram showing the movement trajectory of a partial structure of this utility model.

[0023] In the diagram: 1. Upper mold frame; 2. Lower mold frame; 3. Mold core; 4. Molding cavity; 5. Shell; 6. Connecting groove; 7. Spring; 8. Movable block; 9. Positioning rod; 10. Positioning groove; 11. Drive rod; 12. Transmission disc; 13. Transmission rod; 14. Transmission groove; 15. Tightening block; 16. Tightening groove; 17. Bearing; 18. Sliding block; 19. Sliding groove; 20. Dovetail block; 21. Dovetail groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 6 This utility model provides a technical solution:

[0026] Example 1:

[0027] A magnesium-aluminum alloy mold for automotive sheet metal includes an upper mold frame 1, a lower mold frame 2, a mold core 3, and a forming cavity 4. The forming cavity 4 is opened on the top of the mold core 3, the mold core 3 is set on the top of the lower mold frame 2, the upper mold frame 1 is located on the top of the mold core 3, and two housings 5 ​​are fixedly connected to the bottom of the mold core 3. The top of the lower mold frame 2 is provided with a mating groove 6 that mates with the housings 5.

[0028] The positioning mechanism is movably installed inside the housing 5 and can fix the mold core 3 and the lower mold frame 2.

[0029] The positioning mechanism includes a spring 7 disposed inside the housing 5. Both ends of the spring 7 are fixedly connected to movable blocks 8. A positioning rod 9 is fixedly connected to one side of the movable block 8. One end of the positioning rod 9 extends through to the outside of the housing 5. The inner wall of the mating groove 6 is provided with a positioning groove 10 that cooperates with the positioning rod 9. A driving mechanism is provided on one side of the housing 5.

[0030] In this embodiment, considering that the existing mold core 3 is generally fixed to the lower mold frame 2 by bolts, the threads on the bolt surface are prone to wear, making subsequent disassembly and replacement difficult, thus reducing the practicality of the mold, a positioning mechanism is set up so that by rotating the turning block 15, the drive rod 11 and the transmission disk 12 can be driven to rotate around the bearing 17, such as... Figure 6 As shown, when the transmission disc 12 rotates, it drives the transmission rod 13 to rotate. The surface of the transmission rod 13 presses against the inside of the transmission groove 14, causing the two movable blocks 8 to move along the trajectory of the sliding block 18 and the sliding groove 19 towards the side closer to the spring 7. The movable blocks 8 will drive the positioning rod 9 to retract into the housing 5. Then the mold core 3 can be removed. During installation, align the housing 5 with the docking groove 6 and install the mold core 3 on the top of the lower mold frame 2, so that the housing 5 enters the docking groove 6. Then loosen the screw block 15. The elastic force generated by the spring 7 will push the movable block 8 and the positioning rod 9 to the side away from the spring 7, so that the positioning rod 9 enters the corresponding positioning groove 10, completing the installation of the mold core 3 and facilitating replacement.

[0031] The top and bottom of the movable block 8 are fixedly connected to the sliding block 18, and the inner wall of the housing 5 is provided with a sliding groove 19 that cooperates with the sliding block 18.

[0032] In this embodiment, by setting the sliding block 18 and the sliding groove 19, when the transmission rod 13 rotates and squeezes the transmission groove 14 to transmit the movement block 8, the movement block 8 and the positioning rod 9 are restricted to move only along the trajectory of the sliding block 18 and the sliding groove 19, thus limiting the movement trajectory.

[0033] Dovetail blocks 20 are fixedly connected to the sides of the two shells 5 that are close to each other, and the inner wall of the mating groove 6 is provided with a dovetail groove 21 that is used to cooperate with the dovetail blocks 20.

[0034] In this embodiment, by setting dovetail block 20 and dovetail groove 21, when mold core 3 is installed on lower mold frame 2, dovetail block 20 will also enter the dovetail groove 21, thereby improving the stability of mold core 3 installation.

[0035] Example 2:

[0036] The drive mechanism includes a drive rod 11 disposed on one side of the housing 5. One end of the drive rod 11 extends into the interior of the housing 5 and is fixedly connected to a transmission disk 12. Two transmission rods 13 are fixedly connected to one side of the transmission disk 12. A transmission groove 14 is provided on one side of the movable block 8 to cooperate with the transmission rods 13.

[0037] In this embodiment, by setting a driving mechanism, the drive rod 11 and the transmission disk 12 can be rotated around the bearing 17 by rotating the rotating block 15. Figure 6As shown, when the transmission disc 12 rotates, it will drive the transmission rod 13 to rotate. The surface of the transmission rod 13 presses against the inside of the transmission groove 14, causing the two movable blocks 8 to move along the trajectory of the sliding block 18 and the sliding groove 19 towards the side closer to the spring 7. The movable blocks 8 will drive the positioning rod 9 to retract into the inside of the housing 5, which facilitates driving.

[0038] A rotating block 15 is fixedly connected to the side of the drive rod 11 away from the transmission disc 12, and a rotating groove 16 is symmetrically opened on the circumferential side of the rotating block 15.

[0039] In this embodiment, by setting the twisting block 15 and the twisting groove 16, it is easy for the user to rotate the drive rod 11, providing the user with a leverage point for gripping, so that the user can more easily rotate the drive rod 11 to cooperate with the drive mechanism and the positioning mechanism.

[0040] A bearing 17 is fitted onto the surface of the drive rod 11, and the rotating block 15 is rotatably connected to the housing 5 through the bearing 17.

[0041] In this embodiment, by setting the bearing 17, the drive rod 11 and the rotating block 15 can be supported, so that they can only rotate around the bearing 17, which improves the smoothness of their rotation process.

[0042] Working principle: By rotating the crank block 15, the user drives the drive rod 11 and the transmission disc 12 to rotate around the bearing 17. Figure 6 As shown, when the transmission disc 12 rotates, it drives the transmission rod 13 to rotate. The surface of the transmission rod 13 presses against the inside of the transmission groove 14, causing the two movable blocks 8 to move along the trajectory of the sliding block 18 and the sliding groove 19 towards the side closer to the spring 7. The movable blocks 8 will drive the positioning rod 9 to retract into the housing 5. Then the mold core 3 can be removed. During installation, align the housing 5 with the docking groove 6 and install the mold core 3 on the top of the lower mold frame 2, so that the housing 5 enters the docking groove 6. Then loosen the screw block 15. The elastic force generated by the spring 7 will push the movable block 8 and the positioning rod 9 to the side away from the spring 7, so that the positioning rod 9 enters the corresponding positioning groove 10, completing the installation of the mold core 3 and facilitating replacement.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnesium-aluminum alloy die for automobile panel parts, comprising an upper die frame (1), a lower die frame (2), a die core (3) and a forming cavity (4), wherein the forming cavity (4) is formed on the top of the die core (3), the die core (3) is arranged on the top of the lower die frame (2), and the upper die frame (1) is arranged on the top of the die core (3), characterized in that: The bottom of the mold core (3) is fixedly connected with two housings (5), and the top of the lower mold base (2) is provided with a butt joint groove (6) matched with the housings (5); ​ A positioning mechanism movably arranged in the housing (5) can fix the mold core (3) and the lower mold base (2); The positioning mechanism comprises a spring (7) arranged in the housing (5), both ends of the spring (7) are fixedly connected with a movable block (8), one side of the movable block (8) is fixedly connected with a positioning rod (9), one end of the positioning rod (9) penetrates to the outside of the housing (5), and the inner wall of the butt joint groove (6) is provided with a positioning groove (10) matched with the positioning rod (9), and one side of the housing (5) is provided with a driving mechanism.

2. The magnesium-aluminum alloy die for an automobile panel according to claim 1, wherein: The driving mechanism comprises a driving rod (11) arranged on one side of the housing (5), one end of the driving rod (11) penetrates to the inside of the housing (5) and is fixedly connected with a transmission disc (12), one side of the transmission disc (12) is fixedly connected with two transmission rods (13), and one side of the movable block (8) is provided with a transmission groove (14) matched with the transmission rod (13).

3. The magnesium-aluminum alloy die for an automobile panel according to claim 2, wherein: The side of the driving rod (11) away from the transmission disc (12) is fixedly connected with a twisting block (15), and the circumferential side of the twisting block (15) is symmetrically provided with a twisting groove (16).

4. The magnesium-aluminum alloy die for an automobile panel member according to claim 3, characterized by: The surface of the driving rod (11) is sleeved with a bearing (17), and the twisting block (15) is rotatably connected with the housing (5) through the bearing (17).

5. The magnesium-aluminum alloy die for an automobile panel part according to claim 1, characterized by: The top and bottom of the movable block (8) are fixedly connected with a sliding block (18), and the inner wall of the housing (5) is provided with a sliding groove (19) matched with the sliding block (18).

6. The magnesium-aluminum alloy die for an automobile panel part according to claim 1, characterized by: The side of the two housings (5) close to each other is fixedly connected with a dovetail block (20), and the inner wall of the butt joint groove (6) is provided with a dovetail groove (21) matched with the dovetail block (20).

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