Lightweight new energy vehicle flange pipe inclined side extraction pressure casting mold

Abstract

The present application relates to a kind of new energy vehicle flange pipe oblique side extraction pressure casting mould of lightening, including movable template movable template is equipped with core block, oil cylinder first core-pulling block, second core-pulling block, power block, the output shaft of the power block is connected with oil cylinder;First sliding slot is opened in the first core-pulling block, the end portion of the second core-pulling block away from core block passes through first sliding slot and is abutted with power block, the other end of the second core-pulling block is abutted with core block;Spring one is equipped in the first sliding slot, the elastic force of spring one acts on the second core-pulling block, spring one always drives the second core-pulling block movement away from core block;Second sliding slot is opened in the first core-pulling block, sliding connection fitting block is in the second sliding slot, the end of the fitting block extends second sliding slot and is connected with power block.The present application provides power to first core-pulling block and second core-pulling block by the movement of power block in sectional, to realize the step-by-step core-pulling of two core-pulling blocks.

Description

Technical Field

[0001] This invention relates to the field of molds, and in particular to a lightweight new energy vehicle flange pipe oblique side-drawing die casting mold. Background Technology

[0002] A type of flange pipe for new energy vehicles, such as Figure 1 and Figure 2 As shown, the flange tube body 7 is included. A weight-reducing groove 71 is provided on one side wall of the flange tube. An assembly hole 72 is provided on the groove wall of the weight-reducing groove 71. The inclination angle of the weight-reducing groove 71 is different from that of the assembly hole 72.

[0003] The flange pipe body 7 is formed by casting using a mold, with the weight-reducing inclined groove 71 and the assembly hole 72 formed by two core-pulling blocks. In conventional mold designs, the two core-pulling blocks used to form the weight-reducing inclined groove 71 and the assembly hole 72 are controlled by two external power sources. However, in actual design, it was found that if a dual external power source scheme is adopted, the mold size needs to be increased, which increases the amount of steel required for mold manufacturing and makes the production cost too high. Therefore, a core-pulling structure needs to be designed so that the step-by-step core-pulling action of the two core-pulling blocks can be completed by a single external power source. Summary of the Invention

[0004] This application provides a lightweight new energy vehicle flange pipe oblique side-pulling die casting mold, in which one hydraulic cylinder can realize the step-by-step core-pulling action of two core-pulling blocks.

[0005] The lightweight new energy vehicle flange tube oblique side die casting mold provided in this application adopts the following technical solution:

[0006] A lightweight new energy vehicle flange pipe oblique side-pulling die-casting mold includes a moving mold plate and a fixed mold plate. The moving mold plate is provided with a core block and a hydraulic cylinder. A first core-pulling block for forming a weight-reducing oblique groove is slidably connected to the moving mold plate. A second core-pulling block for forming an assembly hole is slidably connected to the first core-pulling block. A power block is slidably connected to the moving mold plate and is connected to the output shaft of the hydraulic cylinder. A first sliding groove is formed on the first core-pulling block. The end of the second core-pulling block away from the core block passes through the first sliding groove and abuts against the power block. The other end of the second core-pulling block abuts against the core block. A spring is provided in the first sliding groove. The elastic force of the spring acts on the second core-pulling block, and the spring always drives the second core-pulling block to move away from the core block. A second sliding groove is formed on the first core-pulling block. A mating block is slidably connected in the second sliding groove. The end of the mating block extends out of the second sliding groove and is connected to the power block. In the mold closed state, the mating block abuts against the side wall of the second sliding groove near the core block.

[0007] By adopting the above technical solution, after the mold opens, the output shaft of the hydraulic cylinder retracts, driving the power block to move away from the first core-pulling block. As the power block moves away from the first core-pulling block, it carries the mating block along with it, causing the mating block to slide away from the core block within the second slide groove. When the power block moves away from the first core-pulling block, the spring drives the second core-pulling block to move away from the core block, causing the second core-pulling block to disengage from the already formed assembly hole, releasing the undercut structure between the second core-pulling block and the assembly hole. When the mating block moves to abut against the side wall of the second slide groove away from the core block, the second core-pulling block has already moved back into the first core-pulling block. Subsequently, the mating block will pull the first core-pulling block away from the product, releasing the undercut structure between the first core-pulling block and the weight-reducing inclined groove.

[0008] Preferably, the first core-pulling block has a third sliding groove, which is connected to the second sliding groove; a limit rod is slidably connected in the third sliding groove, and the first core-pulling block has a control component for controlling the sliding of the limit rod; the mating block has an insertion hole for inserting and engaging with the limit rod, and when the mating block moves to abut against the side wall of the second sliding groove away from the core block, the limit rod is aligned with the insertion hole.

[0009] By adopting the above technical solution, when the mating block moves to abut against the side wall of the second slide groove away from the core block, the control component controls the movement of the limit rod, causing the limit rod to insert into the insertion hole. After the flange tube body moves up and down from the driven template, the output shaft of the hydraulic cylinder extends, driving the power block to move closer to the core block. When the power block moves closer to the core block, it drives the first core-pulling block to move and reset through the cooperation of the mating block and the limit rod. After the first core-pulling block resets to the predetermined position, the control component drives the limit rod to move, causing the limit rod to disengage from the insertion hole. Then, the output shaft of the hydraulic cylinder continues to extend, driving the power block to move closer to the first core-pulling block. During this process, the power block will press against the end of the second core-pulling block away from the core block, causing the end of the second core-pulling block closest to the core block to gradually move out of the first core-pulling block. The spring is compressed, and finally, the power block moves to abut against the first core-pulling block. At this time, the second core-pulling block also moves and resets to its position, abutting against the core block. The above structural design illustrates that during the resetting process of the first core-pulling block, the second core-pulling block will not extend beyond the first core-pulling block, thus preventing the second core-pulling block from colliding with the core block while following the movement of the first core-pulling block.

[0010] Preferably, the control component includes a second spring disposed in the third slide groove, a slot formed on the moving template, and a guide ramp formed on the side wall of the slot; the elastic force of the second spring acts on the limiting rod, and the second spring always drives the limiting rod to move away from the second slide groove; when the mold is closed, the slot is directly opposite the limiting rod, the end of the limiting rod away from the second slide groove is inserted into the slot, and the end of the limiting rod near the second slide groove is completely located in the third slide groove.

[0011] By adopting the above technical solution, during the mold opening process, the mating block pulls the first core-pulling block away from the core block. During this process, the limiting rod moves along with the first core-pulling block. The end of the limiting rod extending into the slot moves to the guide slope. Under the guidance of the guide slope, the power of the first core-pulling block is converted into the power of the limiting rod, causing the limiting rod to move towards the second slide groove and press against the second spring. During this process, the limiting rod gradually moves and inserts into the insertion hole. As the first core-pulling block moves closer to the core block, the end of the limiting rod away from the second slide groove moves to the guide slope and abuts against it. Subsequently, as the first core-pulling block continues to move, the second spring rebounds and drives the limiting rod to move away from the second slide groove, causing the end of the limiting rod near the second slide groove to move away from the insertion hole and the end of the limiting rod away from the second slide groove to move into the slot. Subsequently, when the first core-pulling block moves back to its original position and disengages from the mating block, the mating block will slide in the second groove. The power block can then move closer to the first core-pulling block and push the second core-pulling block to move, causing the second core-pulling block to extend out of the first core-pulling block, thus preparing for the forming of the assembly hole.

[0012] Preferably, the second core-pulling block includes a core-pulling rod and a pressure plate disposed on the core-pulling rod. One end of the core-pulling rod abuts against the core block, and the other end of the core-pulling rod passes through the first sliding groove and abuts against the power block. The pressure plate is slidably connected in the first sliding groove, and the spring is sleeved on the core-pulling rod and abuts against the pressure plate.

[0013] By adopting the above technical solution, the elastic force of spring one can effectively act on the core-pulling rod, ensuring the stability of the core-pulling action.

[0014] Preferably, the first core-pulling block is provided with a sealing block 1, which blocks the opening of the second sliding groove, and the end of the mating block away from the core block passes through the sealing block 1 and is connected to the power block.

[0015] By adopting the above technical solution, it is convenient to assemble the mating block with the second slide groove.

[0016] Preferably, the power block is provided with a bolt, and one end of the mating block extending out of the first core-pulling block extends into the power block, and the end of the mating block extending into the power block is connected to the bolt.

[0017] By adopting the above technical solution, the assembly of the mating block and the power block can be facilitated.

[0018] Preferably, the power block has an installation groove, the bolt is disposed in the installation groove, and the power block has an insert for closing the installation groove.

[0019] By adopting the above technical solution, the assembly and connection of bolts and mating blocks can be facilitated.

[0020] Preferably, the first core-pulling block is located between the core block and the power block, and the fixed template is provided with an anti-retraction groove for the power block to be inserted; when the mold is closed, the power block is inserted into the anti-retraction groove, and the fixed template restricts the movement of the power block and the first core-pulling block away from the core block.

[0021] By adopting the above technical solution, displacement of the first and second core-pulling blocks during product casting is prevented, thereby reducing the probability of product problems such as flash.

[0022] The main technical effects of this invention are reflected in the following aspects:

[0023] 1. This invention provides power to the first and second core-pulling blocks in stages by moving the power block, thereby realizing the step-by-step core pulling of the two core-pulling blocks.

[0024] 2. The present invention designs inserts, bolts and other structures on the power block to complete the power connection between the power block and the mating block;

[0025] 3. This invention improves product manufacturing quality through the combination of a power block and an anti-reverse groove. Attached Figure Description

[0026] Figure 1 This is a structural diagram of a flange pipe.

[0027] Figure 2 yes Figure 1 A cross-sectional view of the middle flange pipe along line AA.

[0028] Figure 3 This is a structural diagram of the mold in the closed state of this application.

[0029] Figure 4 yes Figure 3 A cross-sectional view of the middle mold along the BB line.

[0030] Figure 5 yes Figure 4 A magnified view of a section at point C.

[0031] Figure 6 yes Figure 5 A schematic diagram of the structure of each component when the mating block moves to contact the sealing block after the middle mold opens.

[0032] Figure 7 yes Figure 5 A schematic diagram of the structure when the middle mold opens and the mating block pulls the first core-pulling block away from the flange pipe body.

[0033] Reference numerals: 1. Moving template; 11. Core block; 12. Hydraulic cylinder; 2. Fixed template; 21. Anti-retraction groove; 3. First core-pulling block; 31. First slide groove; 32. Spring one; 33. Second slide groove; 34. Mating block; 341. Insertion hole; 35. Third slide groove; 36. Limiting rod; 37. Sealing block one; 4. Second core-pulling block; 41. Core-pulling rod; 42. Pressure plate one; 5. Power block; 51. Bolt; 52. Mounting groove; 53. Insert; 6. Control component; 61. Spring two; 62. Slot; 63. Guide slope; 7. Flange pipe body; 71. Weight-reducing slope; 72. Assembly hole; Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this application can be more easily understood and mastered.

[0035] Reference Figures 3-5 This embodiment of a lightweight new energy vehicle flange pipe oblique side-pulling die-casting mold includes a moving template 1 and a fixed template 2. The moving template 1 is provided with a core block 11 and multiple hydraulic cylinders 12. A first core-pulling block 3 for forming a weight-reducing oblique groove 71 is slidably connected to the moving template 1. A power block 5 is slidably connected to the moving template 1, and the power block 5 is connected to the output shaft of one of the hydraulic cylinders 12. The hydraulic cylinder 12 is located on the side of the power block 5 away from the core block 11, and the first core-pulling block 3 is located between the power block 5 and the core block 11.

[0036] Reference Figures 3-5 A second core-pulling block 4 for forming the assembly hole 72 is slidably connected to the first core-pulling block 3, and a first sliding groove 31 is provided on the first core-pulling block 3. The second core-pulling block 4 includes a core-pulling rod 41 and a pressure plate 42 disposed on the core-pulling rod 41. One end of the core-pulling rod 41 abuts against the core block 11 and is used to form the assembly hole 72, and the other end of the core-pulling rod 41 passes through the first sliding groove 31 and abuts against the power block 5. The pressure plate 42 is slidably connected in the first sliding groove 31. A spring 32 is provided in the first sliding groove 31. The spring 32 is located on the side of the pressure plate 42 closer to the core block 11. The spring 32 is sleeved on the core-pulling rod 41 and abuts against the pressure plate 42. The elastic force of the spring 32 acts on the pressure plate 42 and the core-pulling rod 41, and the spring 32 always drives the core-pulling rod 41 and the pressure plate 42 to move away from the core block 11.

[0037] Reference Figure 5A second groove 33 is formed on the side of the first core-pulling block 3 facing the power block 5. A sealing block 37 is fixedly connected to the first core-pulling block 3, sealing the opening of the second groove 33. A mating block 34 is slidably connected inside the second groove 33. One end of the mating block 34 has a larger diameter, and the other end has a smaller diameter. The smaller diameter end of the mating block 34 passes through the sealing block 37 and extends into the power block 5. An installation groove 52 is formed on the power block 5, and an insert 53 is provided on the power block 5 to close the installation groove 52. A bolt 51 is placed in the installation groove 52, and the end of the mating block 34 extending into the power block 5 is connected to the bolt 51.

[0038] Reference Figure 5 The first core-pulling block 3 has a third sliding groove 35, which connects to the second sliding groove 33. A limit rod 36 is slidably connected in the third sliding groove 35. The mating block 34 has an insertion hole 341 that engages with the limit rod 36. When the mating block 34 moves to abut against the side wall of the second sliding groove 33 away from the core block 11, the limit rod 36 is aligned with the insertion hole 341.

[0039] Reference Figure 5 The first core-pulling block 3 is equipped with a control component 6 for controlling the sliding of the limiting rod 36. The control component 6 includes a second spring 61 disposed in the third slide groove 35, a slot 62 opened on the moving template 1, and a guide slope 63 opened on the side wall of the slot 62. The second spring 61 is sleeved on the limiting rod 36, and the elastic force of the second spring 61 acts on the limiting rod 36. The second spring 61 always drives the limiting rod 36 to move away from the second slide groove 33.

[0040] Reference Figure 5 When the mold is closed, the mating block 34 abuts against the side wall of the second slide groove 33 near the core block 11, the slot 62 is directly opposite the limiting rod 36, the end of the limiting rod 36 away from the second slide groove 33 is inserted into the slot 62, and the end of the limiting rod 36 near the second slide groove 33 is completely located in the third slide groove 35.

[0041] Refer to 5- Figure 7 The production and use steps of the mold in this application are as follows:

[0042] First, the injection molding machine fills the mold with material to complete the forming of the flange pipe body 7. During this process, the fixed template 2 restricts the retraction of the power block 5 and the first core-pulling block 3, reducing the probability of quality problems such as flash on the flange pipe body 7.

[0043] Then the injection molding machine mold opens, separating the fixed mold plate 2 and the moving mold plate 1. Next, the output shaft of the hydraulic cylinder 12 retracts, driving the power block 5 to move away from the first core-pulling block 3. When the power block 5 moves away from the first core-pulling block 3, it will move the mating block 34, causing the mating block 34 to slide away from the core block 11 within the second slide groove 33. When the power block 5 moves away from the first core-pulling block 3, the spring 32 will drive the core-pulling rod 41 and the pressure plate 42 to move away from the core block 11, causing the core-pulling rod 41 to move away from the already formed assembly hole 72, releasing the undercut structure between the core-pulling rod 41 and the assembly hole 72.

[0044] When the mating block 34 moves to abut against the sealing block 37, the core-pulling rod 41 has already moved back into the first core-pulling block 3, and at the same time, the insertion hole 341 is aligned with the third sliding groove 35. The subsequent power block 5 will continue to move away from the core block 11 under the pull-back action of the output shaft of the hydraulic cylinder 12. During this process, the mating block 34 will pull the first core-pulling block 3 away from the flange pipe body 7, releasing the inverted buckle structure between the first core-pulling block 3 and the weight-reducing inclined groove 71.

[0045] As the mating block 34 pulls the first core-pulling block 3 away from the flange tube body 7, the limiting rod 36 moves along with the first core-pulling block 3. During this process, the end of the limiting rod 36 extending into the slot 62 moves onto the guide slope 63. Under the guidance of the guide slope 63, the movement of the first core-pulling block 3 forces the limiting rod 36 to move towards the second slide groove 33 and press against the second spring 61. The limiting rod 36 then moves and inserts into the insertion hole 341. Subsequently, after the undercut structure between the flange tube body 7 and the mold components is released, the flange tube body 7 can be removed from the mold.

[0046] After the flange body 7 is removed, the output shaft of the hydraulic cylinder 12 extends, driving the power block 5 to move closer to the core block 11. When the power block 5 moves closer to the core block 11, it drives the first core-pulling block 3 to move closer to the core block 11 through the cooperation of the mating block 34 and the limiting rod 36. During the process of the first core-pulling block 3 moving closer to the core block 11, the end of the limiting rod 36 away from the second slide groove 33 will move to the guide inclined surface 63 and abut against it. Subsequently, as the first core-pulling block 3 continues to move, the spring 61 will rebound and drive the limiting rod 36 to move in the direction away from the second slide groove 33, so that the end of the limiting rod 36 near the second slide groove 33 moves away from the insertion hole 341 and the end of the limiting rod 36 away from the second slide groove 33 moves into the slot 62. At this time, the limiting rod 36 will also have a limiting effect on the first core-pulling block 3, preventing the first core-pulling block 3 from retracting away from the core block 11.

[0047] When the first core-pulling block 3 moves to the point where the limiting rod 36 disengages from the mating block 34, the mating block 34 will no longer push the first core-pulling block 3 to continue moving. Subsequently, the power block 5 and the mating block 34 will continue to move closer to the core block 11, and the mating block 34 will slide within the second slide groove 33. When the power block 5 moves closer to the first core-pulling block 3, it pushes the core-pulling rod 41 and the pressure plate 42 to move closer to the core block 11. When the pressure plate 42 moves closer to the core block 11, it will press against the spring 32, causing the spring 32 to compress. When the core-pulling rod 41 moves closer to the core block 11, it will extend out of the first core-pulling block 3. Finally, the core-pulling rod 41 will move to abut against the core block 11. At this time, the mating block 34 will also move to abut against the side wall of the second slide groove 33 near the core block 11, and the power block 5 will move to abut against the first core-pulling block 3. Then the injection molding machine can control the mold to close and prepare for the casting and molding of the next flange pipe body 7.

[0048] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A lightweight new energy vehicle flange pipe oblique side-pulling die casting mold, comprising a moving template (1) and a fixed template (2), wherein the moving template (1) is provided with a core block (11) and a hydraulic cylinder (12), a first core-pulling block (3) for forming a weight-reducing oblique groove (71) is slidably connected to the moving template (1), and a second core-pulling block (4) for forming an assembly hole (72) is slidably connected to the first core-pulling block (3), characterized in that: A power block (5) is slidably connected to the moving template (1), and the power block (5) is connected to the output shaft of the oil cylinder (12); a first groove (31) is provided on the first core-pulling block (3), and the end of the second core-pulling block (4) away from the core block (11) passes through the first groove (31) and abuts against the power block (5), and the other end of the second core-pulling block (4) abuts against the core block (11); a spring (32) is provided in the first groove (31), and the spring (32) has a spring... The force acts on the second core-pulling block (4), and the spring (32) always drives the second core-pulling block (4) to move away from the core block (11); the first core-pulling block (3) is provided with a second sliding groove (33), and a mating block (34) is slidably connected in the second sliding groove (33). The end of the mating block (34) extends out of the second sliding groove (33) and is connected to the power block (5). When the mold is closed, the mating block (34) abuts against the side wall of the second sliding groove (33) near the core block (11).

2. The lightweight new energy vehicle flange pipe oblique side-drawing die-casting mold according to claim 1, characterized in that: The first core-pulling block (3) has a third sliding groove (35) which is connected to the second sliding groove (33). A limit rod (36) is slidably connected in the third sliding groove (35). The first core-pulling block (3) has a control component (6) for controlling the sliding of the limit rod (36). The mating block (34) has an insertion hole (341) that engages with the limit rod (36). When the mating block (34) moves to the side wall of the second sliding groove (33) away from the core block (11), the limit rod (36) is facing the insertion hole (341).

3. The lightweight new energy vehicle flange pipe oblique side-drawing die-casting mold according to claim 2, characterized in that: The control component (6) includes a second spring (61) disposed in the third slide (35), a slot (62) opened on the moving template (1), and a guide slope (63) opened on the side wall of the slot (62); the elastic force of the second spring (61) acts on the limiting rod (36), and the second spring (61) always drives the limiting rod (36) to move away from the second slide (33); when the mold is closed, the slot (62) is directly opposite the limiting rod (36), the end of the limiting rod (36) away from the second slide (33) is inserted into the slot (62), and the end of the limiting rod (36) near the second slide (33) is completely located in the third slide (35).

4. The lightweight new energy vehicle flange pipe oblique side-drawing die-casting mold according to claim 1, characterized in that: The second core-pulling block (4) includes a core-pulling rod (41) and a pressure plate (42) disposed on the core-pulling rod (41). One end of the core-pulling rod (41) abuts against the core block (11), and the other end of the core-pulling rod (41) passes through the first slide groove (31) and abuts against the power block (5). The pressure plate (42) is slidably connected in the first slide groove (31), and the spring (32) is sleeved on the core-pulling rod (41) and abuts against the pressure plate (42).

5. The lightweight new energy vehicle flange pipe oblique side-pulling die-casting mold according to claim 1, characterized in that: The first core-pulling block (3) is provided with a sealing block (37), which blocks the opening of the second sliding groove (33). The end of the mating block (34) away from the core block (11) passes through the sealing block (37) and is connected to the power block (5).

6. A lightweight new energy vehicle flange pipe oblique side-drawing die-casting mold according to claim 5, characterized in that: The power block (5) is provided with a bolt (51), and the end of the mating block (34) extending out of the first core-pulling block (3) extends into the power block (5). The end of the mating block (34) extending into the power block (5) is connected to the bolt (51).

7. A lightweight new energy vehicle flange pipe oblique side-drawing die-casting mold according to claim 6, characterized in that: The power block (5) has an installation groove (52), the bolt (51) is set in the installation groove (52), and the power block (5) has an insert (53) for closing the installation groove (52).

8. The lightweight new energy vehicle flange pipe oblique side-drawing die-casting mold according to claim 1, characterized in that: The first core-pulling block (3) is located between the core block (11) and the power block (5). The fixed template (2) is provided with an anti-retraction groove (21) for the power block (5) to be inserted. When the mold is closed, the power block (5) is inserted into the anti-retraction groove (21), and the fixed template (2) restricts the movement of the power block (5) and the first core-pulling block (3) away from the core block (11).

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