Lightweight new energy vehicle flange pipe inclined side drawing die-casting die

Abstract

The invention relates to a lightweight new energy vehicle flange pipe inclined side pulling die-casting die which comprises a movable die plate, a core block, an oil cylinder, a first core pulling block, a second core pulling block and a power block are arranged on the movable die plate, and the power block is connected with an output shaft of the oil cylinder; a first sliding groove is formed in the first core pulling block, the end, away from the mold core block, of the second core pulling block penetrates through the first sliding groove and abuts against the power block, and the other end of the second core pulling block abuts against the mold core block. A first spring is arranged in the first sliding groove, the elastic force of the first spring acts on the second core pulling block, and the first spring always drives the second core pulling block to move away from the mold core block. A second sliding groove is formed in the first core pulling block, a matching block is slidably connected into the second sliding groove, and the end of the matching block extends out of the second sliding groove and is connected with a power block. Power is provided for the first core-pulling block and the second core-pulling block in a sectional mode through movement of the power block, and therefore step-by-step core pulling of the two core-pulling blocks is achieved.

Description

Technical Field

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

[0002] A new energy vehicle flange pipe Figure 1 and Figure 2 As shown, it includes a flange tube body 7, a weight-reducing inclined groove 71 is opened on one side wall of the flange tube, and an assembly hole 72 is opened on the groove wall of the weight-reducing inclined groove 71, wherein the inclination angle of the weight-reducing inclined groove 71 is different from that of the assembly hole 72.

[0003] The flange pipe body 7 is formed by casting using a mold, wherein the weight-reducing chute 71 and the assembly hole 72 are formed by two core-pulling blocks. In conventional mold design, the two core-pulling blocks used to form the weight-reducing chute 71 and the assembly hole 72 are controlled by two external power sources to control the core-pulling action of the two core-pulling blocks. In actual design, it is found that if a dual external power source solution is adopted, the size of the mold needs to be expanded, and the steel required for mold manufacturing becomes more, and the production cost is too high. Therefore, it is necessary to design a core-pulling structure that can complete the step-by-step core-pulling action of the two core-pulling blocks through an external power source. Summary of the Invention

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

[0005] The present application provides a lightweight new energy vehicle flange pipe oblique side-drawing die-casting mold adopts the following technical solution: A lightweight new energy vehicle flange pipe oblique side-drawing die-casting mold, comprising a movable platen and a fixed platen, the movable platen being provided with a core block and an oil cylinder, the movable platen being slidably connected to a first core-pulling block for forming a weight-reducing chute, the first core-pulling block being slidably connected to a second core-pulling block for forming an assembly hole, the movable platen being slidably connected to a power block, the power block being connected to the output shaft of the oil cylinder; a first slide groove is provided on the first core-pulling block, the end of the second core-pulling block away from the core block passes through the first slide groove and abuts against the power block, and the other end of the second core-pulling block abuts against the core block; a spring is provided in the first slide 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 slide groove is provided on the first core-pulling block, the second slide groove is slidably connected to a matching block, the end of the matching block extends out of the second slide groove and is connected to the power block, and when the mold is in a closed state, the matching block abuts against the side wall of the second slide groove close to the core block.

[0006] By adopting the above technical solution, after the mold is opened, the output shaft of the oil cylinder retracts and drives the power block to move away from the first core pulling block. When the power block moves away from the first core pulling block, it will move with the matching block, causing the matching block to slide away from the core block in the second chute. When the power block moves away from the first core pulling block, the spring will drive the second core pulling block to move away from the core block, causing the second core pulling block to move out of the already formed assembly hole, releasing the inverted structure between the second core pulling block and the assembly hole. When the matching block moves to abut against the side wall of the second chute away from the core block, the second core pulling block has moved back into the first core pulling block. The subsequent matching block will pull the first core pulling block away from the product, releasing the inverted structure between the first core pulling block and the weight-reducing chute.

[0007] Preferably, a third slide groove is provided on the first core pulling block, and the third slide groove is connected to the second slide groove; a limit rod is slidably connected in the third slide groove, and the first core pulling block is provided with a control component for controlling the sliding of the limit rod; a socket is provided on the mating block to be plugged into and cooperate with the limit rod, and when the mating block moves to conflict with the side wall of the second slide groove away from the core block, the limit rod is facing the socket.

[0008] By adopting the above technical solution, when the matching block moves to abut against the side wall of the second slide away from the core block, the control component controls the movement of the limit rod so that the limit rod is inserted into the socket. After the flange tube body is subsequently removed from the movable template, the output shaft of the oil cylinder extends to drive the power block to move closer to the core block. When the power block moves closer to the core block, the matching block and the limit rod cooperate to drive the first core pulling block to move and reset. After the first core pulling block moves and resets to the predetermined position, the control component drives the limit rod to move so that the limit rod moves out of the socket. Then the output shaft of the oil cylinder continues to extend to drive 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, so that the end of the second core pulling block close to the core block gradually moves out of the first core pulling block. Once the spring is compressed, the power block will eventually move to abut against the first core pulling block. At this time, the second core pulling block also moves and resets into position and abuts against the core block. The above structure is designed so that the second core pulling block will not extend out of the first core pulling block during the movement and resetting of the first core pulling block, so that the second core pulling block will not collide with the core block during the movement following the first core pulling block.

[0009] Preferably, the control component includes a second spring arranged in the third slide groove, a slot provided on the movable template, and a guide slope provided on the side wall of the slot; the elastic force of the second spring acts on the limit rod, and the second spring always drives the limit rod to move in the direction away from the second slide groove; when the mold is closed, the slot is opposite to the limit rod, and the end of the limit rod away from the second slide groove is inserted in the slot, and the end of the limit rod close to the second slide groove is completely located in the third slide groove.

[0010] By adopting the above technical solution, during the mold opening process, the matching block will pull the first core pulling block to move away from the core block. During this process, the limit rod will move with the first core pulling block. During this process, the end of the limit rod extending into the slot will move to the guide slope. Under the guidance of the guide slope, the power of the first core pulling block will be converted into the power of the limit rod movement, so that the limit rod moves toward the second slide groove and presses against the spring 2. During this process, the limit rod will gradually move and insert into the socket. During the movement of the first core pulling block close to the core block, the end of the limit rod away from the second slide groove will move to the guide slope and abut against it. Subsequently, as the first core pulling block continues to move, the spring 2 will rebound and drive the limit rod to move in the direction away from the second slide groove, so that the end of the limit rod close to the second slide groove moves out of the socket, and the end of the limit rod away from the second slide groove moves into the slot. Subsequently, when the first core pulling block moves and resets to the point where the limit rod is disengaged from the mating block, the mating block will slide in the second slide groove, and the power block will be able to move close to the first core pulling block and push the second core pulling block to move, so that the second core pulling block moves out of the first core pulling block, preparing for the formation of the assembly hole.

[0011] Preferably, the second core pulling block includes a core pulling rod and a pressure plate 1 provided on the core pulling rod, one end of the core pulling rod is in conflict with the core block, and the other end of the core pulling rod passes through the first slide groove and is in conflict with the power block; the pressure plate 1 is slidably connected in the first slide groove, and the spring set is provided on the core pulling rod and is in conflict with the pressure plate 1.

[0012] By adopting the above technical solution, the elastic force of the spring 1 can effectively act on the core-pulling rod, ensuring the stability of the core-pulling action of the core-pulling rod.

[0013] Preferably, a blocking block 1 is provided on the first core-pulling block, and the blocking block 1 blocks the notch of the second chute, and the end of the matching block away from the core block passes through the blocking block 1 and is connected to the power block.

[0014] By adopting the above technical solution, the assembly of the matching block and the second sliding groove is facilitated.

[0015] Preferably, a bolt is provided in the power block, one end of the matching block extending out of the first core-pulling block extends into the power block, and the end of the matching block extending into the power block is connected to the bolt.

[0016] By adopting the above technical solution, the assembly of the matching block and the power block is facilitated.

[0017] Preferably, a mounting groove is provided on the power block, the bolt is arranged in the mounting groove, and an insert is provided on the power block, and the insert is used to close the mounting groove.

[0018] By adopting the above technical solution, the assembly and connection of the bolts and the matching blocks are facilitated.

[0019] 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-retreat groove for inserting the power block; when the mold is closed, the power block is inserted into the anti-retreat groove, and the fixed template limits the movement of the power block and the first core pulling block away from the core block.

[0020] By adopting the above technical solution, the displacement of the first core pulling block and the second core pulling block during product casting can be prevented, thereby reducing the probability of product problems such as flash.

[0021] The technical effects of the present invention are mainly reflected in the following aspects: 1. The present invention provides power to the first core pulling block and the second core pulling block in a segmented manner through the movement of the power block, thereby realizing step-by-step core pulling of the two core pulling blocks; 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 matching block; 3. The present invention improves the production quality of the product through the cooperation of the power block and the anti-recession groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of flange pipe.

[0023] Figure 2 yes Figure 1 Cross-sectional view of the middle flange pipe along line AA.

[0024] Figure 3 It is a structural diagram of the mold in the mold closing state of this application.

[0025] Figure 4 yes Figure 3 Cross-sectional view of the middle mold along line BB.

[0026] Figure 5 yes Figure 4 A partial enlarged view of point C in the middle.

[0027] Figure 6 yes Figure 5 Schematic diagram of the structure of each component when the matching block moves to conflict with the blocking block after the middle mold is opened.

[0028] Figure 7 yes Figure 5 Schematic diagram of the structure when the matching block pulls the first core-pulling block away from the flange pipe body after the middle mold is opened.

[0029] Figure numerals: 1, movable template; 11, core block; 12, oil cylinder; 2, fixed template; 21, anti-retreat groove; 3, first core-pulling block; 31, first slide groove; 32, spring one; 33, second slide groove; 34, matching block; 341, socket; 35, third slide groove; 36, limit rod; 37, blocking 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 inclined groove; 72, assembly hole;. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below with reference to the accompanying drawings to make the technical solution of this application easier to understand and grasp.

[0031] Reference Figure 3-Figure 5 In this embodiment, a lightweight, side-drawing die-casting mold for a flange pipe for new energy vehicles includes a movable platen 1 and a fixed platen 2. The movable platen 1 is provided with a core block 11 and multiple cylinders 12. A first core-pulling block 3 for forming a weight-reducing chute 71 is slidably connected to the movable platen 1. A power block 5 is slidably connected to the movable platen 1. The power block 5 is connected to the output shaft of one of the cylinders 12. The cylinder 12 is located on the side of the power block 5 away from the core block 11. The first core-pulling block 3 is located between the power block 5 and the core block 11.

[0032] Reference Figure 3-Figure 5 The first core pulling block 3 is slidably connected to a second core pulling block 4 for forming an assembly hole 72, and a first slide 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 provided on the core pulling rod 41. One end of the core pulling rod 41 contacts the core block 11 and is used to form the assembly hole 72. The other end of the core pulling rod 41 passes through the first slide groove 31 and contacts the power block 5. The pressure plate 42 is slidably connected in the first slide groove 31. A spring 32 is provided in the first slide groove 31. The spring 32 is located on the side of the pressure plate 42 close to the core block 11. The spring 32 is sleeved on the core pulling rod 41 and contacts the pressure plate 42. The elastic force of the spring 32 acts on the pressure plate 42 and the core pulling rod 41. The spring 32 always drives the core pulling rod 41 and the pressure plate 42 to move away from the core block 11.

[0033] Reference Figure 5A second chute 33 is provided on the side of the first core-pulling block 3 facing the power block 5. A blocking block 37 is fixedly connected to the first core-pulling block 3, which blocks the notch of the second chute 33. A matching block 34 is slidably connected in the second chute 33. One end of the matching block 34 has a larger diameter and the other end has a smaller diameter. The smaller end of the matching block 34 passes through the blocking block 37 and extends into the power block 5. A mounting groove 52 is provided in the power block 5, and an insert 53 is provided on the power block 5. The insert 53 is used to close the mounting groove 52. A bolt 51 is placed in the mounting groove 52, and the end of the matching block 34 extending into the power block 5 is connected to the bolt 51.

[0034] Reference Figure 5 The first core-pulling block 3 is provided with a third chute 35, which is connected to the second chute 33. A limit rod 36 is slidably connected within the third chute 35. The mating block 34 is provided with a socket 341 that engages with the limit rod 36. When the mating block 34 moves to contact the side wall of the second chute 33 away from the core block 11, the limit rod 36 faces the socket 341.

[0035] Reference Figure 5 The first core-pulling block 3 is provided with a control assembly 6 for controlling the sliding movement of the limit rod 36. The control assembly 6 includes a second spring 61 disposed within the third chute 35, a slot 62 defined in the movable plate 1, and a guide slope 63 defined on the sidewall of the slot 62. The second spring 61 is sleeved onto the limit rod 36, and the elastic force of the second spring 61 acts on the limit rod 36, constantly driving the limit rod 36 in a direction away from the second chute 33.

[0036] Reference Figure 5 When the mold is in the closed state, the mating block 34 abuts against the side wall of the second slide groove 33 close to the core block 11, the slot 62 is opposite to the limit rod 36, the end of the limit rod 36 away from the second slide groove 33 is inserted into the slot 62, and the end of the limit rod 36 close to the second slide groove 33 is completely located in the third slide groove 35.

[0037] Refer to 5- Figure 7 The production and use steps of the mold of this application are as follows: First, the injection molding machine fills the mold with material to complete the molding of the flange tube body 7. In this process, the fixed template 2 limits the power block 5 and the first core-pulling block 3 to retreat, reducing the probability of quality problems such as flash of the flange tube body 7.

[0038] The injection molding machine then opens the mold, separating the fixed platen 2 and movable platen 1. The output shaft of the oil cylinder 12 then retracts, driving the power block 5 away from the first core block 3. As the power block 5 moves away from the first core block 3, it moves with the mating block 34, causing the mating block 34 to slide within the second chute 33 away from the core block 11. As the power block 5 moves away from the first core block 3, spring 1 32 drives the core pin 41 and pressure plate 1 42 away from the core block 11, disengaging the core pin 41 from the already formed assembly hole 72 and releasing the undercut between the core pin 41 and the assembly hole 72.

[0039] When the mating block 34 moves to abut against the blocking block 1 37 , the core pulling rod 41 has already moved back into the first core pulling block 3 , and the insertion hole 341 is facing the third chute 35 . Subsequently, the power block 5 will continue to move away from the core block 11 under the pulling action of the output shaft of the oil cylinder 12 . During this process, the mating block 34 will pull the first core pulling block 3 away from the flange tube body 7 , releasing the inverted structure between the first core pulling block 3 and the weight-reducing chute 71 .

[0040] 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 inserted into the slot 62 moves onto the guide slope 63. Guided by the guide slope 63, the movement of the first core-pulling block 3 forces the limiting rod 36 to move toward the second chute 33 and press against the second spring 61, causing the limiting rod 36 to move and insert into the insertion hole 341. After the undercut structure between the flange tube body 7 and the mold component is released, the flange tube body 7 can be removed from the mold.

[0041] After the flange tube body 7 is removed, the output shaft of the oil cylinder 12 extends to drive the power block 5 to move closer to the core block 11. When the power block 5 moves closer to the core block 11, the first core pulling block 3 is driven to move closer to the core block 11 through the cooperation of the matching block 34 and the limiting rod 36. During the movement of the first core pulling block 3 closer to the core block 11, the end of the limiting rod 36 away from the second chute 33 will move to abut against the guide slope 63. Subsequently, as the first core pulling block 3 continues to move, the spring 2 61 will rebound and drive the limiting rod 36 to move in the direction away from the second chute 33, so that the end of the limiting rod 36 close to the second chute 33 moves out of the socket 341, and the end of the limiting rod 36 away from the second chute 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 retreating away from the core block 11.

[0042] When the first core pulling block 3 moves until the stop rod 36 disengages from the mating block 34, the mating block 34 will no longer push the first core pulling block 3 to move. 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 chute 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 1 42 closer to the core block 11. When the pressure plate 1 42 moves closer to the core block 11, it presses against the spring 1 32, causing the spring 1 32 to compress. When the core pulling rod 41 moves closer to the core block 11, it moves out of the first core pulling block 3. Eventually, the core pulling rod 41 moves to abut against the core block 11. At this time, the mating block 34 also moves to abut against the side wall of the second chute 33 near the core block 11, and the power block 5 moves to abut against the first core pulling block 3. The injection molding machine can then control the mold to close and prepare for the casting of the next flange tube body 7.

[0043] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

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

2. The oblique side-drawing die-casting mold for a lightweight new energy vehicle flange pipe according to claim 1 is characterized in that: The first core-pulling block (3) is provided with a third chute (35), and the third chute (35) is connected to the second chute (33); a limit rod (36) is slidably connected in the third chute (35), and the first core-pulling block (3) is provided with a control component (6) for controlling the sliding of the limit rod (36); the matching block (34) is provided with a socket (341) for plugging and matching with the limit rod (36), and when the matching block (34) moves to conflict with the side wall of the second chute (33) away from the core block (11), the limit rod (36) is opposite to the socket (341).

3. The oblique side-drawing die-casting mold for a lightweight new energy vehicle flange pipe according to claim 2 is characterized in that: The control assembly (6) includes a second spring (61) arranged in the third chute (35), a slot (62) provided on the movable plate (1), and a guide inclined surface (63) provided on the side wall of the slot (62); the elastic force of the second spring (61) acts on the limit rod (36), and the second spring (61) always drives the limit rod (36) to move in a direction away from the second chute (33); when the mold is closed, the slot (62) is opposite to the limit rod (36), and the end of the limit rod (36) away from the second chute (33) is inserted into the slot (62), and the end of the limit rod (36) close to the second chute (33) is completely located in the third chute (35).

4. The oblique side-drawing die-casting mold for a lightweight new energy vehicle flange pipe according to claim 1 is characterized in that: The second core pulling block (4) includes a core pulling rod (41) and a pressure plate (42) arranged on the core pulling rod (41), one end of the core pulling rod (41) is in contact with the core block (11), and the other end of the core pulling rod (41) passes through the first slide groove (31) and is in contact with 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 is in contact with the pressure plate (42).

5. The oblique side-drawing die-casting mold for a lightweight new energy vehicle flange pipe according to claim 1 is characterized in that: A blocking block (37) is provided on the first core-pulling block (3), and the blocking block (37) blocks the notch of the second slide groove (33). An end of the matching block (34) away from the core block (11) passes through the blocking block (37) and is connected to the power block (5).

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

7. The oblique side-drawing die-casting mold for a lightweight new energy vehicle flange pipe according to claim 6, characterized in that: The power block (5) is provided with a mounting groove (52), the bolt (51) is arranged in the mounting groove (52), and the power block (5) is provided with an insert (53), and the insert (53) is used to close the mounting groove (52).

8. The oblique side-drawing die-casting mold for a lightweight new energy vehicle flange pipe 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), and the fixed plate (2) is provided with an anti-retraction groove (21) for inserting the power block (5); when the mold is closed, the power block (5) is inserted into the anti-retraction groove (21), and the fixed plate (2) limits the movement of the power block (5) and the first core-pulling block (3) in a direction away from the core block (11).

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