Injection mold of automobile electric drive wiring assembly

Abstract

The utility model relates to an injection mold of an automobile electric drive wiring assembly, and belongs to the technical field of injection molding equipment. The injection mold for the automobile electric drive wiring assembly comprises a movable mold and a fixed mold, a module A, a module B and a positioning bulge are arranged in the middle of the bottom end of the movable mold; positioning columns are arranged on the module A and the positioning bulge; three groups of shaping grooves are formed in the module A; a communicating notch is formed in the module A between the shaping grooves; a shaping cylinder is arranged in the center of the shaping groove; a positioning hole is formed in the center of the shaping cylinder; spacing needles are arranged between the module A and the module B at intervals. The injection mold for the automobile electric drive wiring assembly is compact in structure and ingenious in design, solves the problem of low production qualification rate of an existing automobile electric drive wiring assembly production mode, and is particularly suitable for the production and use requirements of the automobile electric drive wiring assembly.

Description

Technical Field

[0001] This utility model relates to an injection mold for an automotive electric drive wiring assembly, belonging to the field of injection molding equipment technology. Background Technology

[0002] In the field of automotive electric drive wiring assembly manufacturing, the automotive electric drive wiring assembly is integrally injection molded from internal inserts. The inserts of the automotive electric drive wiring assembly include multiple metal sleeves 26 and multiple metal plates 27 (see attached instruction manual). Figure 11 The two sets of metal plates 27 are characterized by a relatively close spacing and a relatively long overall length. When using existing molds for injection molding, although the two sets of metal plates are positioned and limited by a positioning mechanism after being placed inside the mold, slight displacement can still occur under the pressure of the injection fluid. This leads to an unacceptable gap between the two sets of metal plates 2, making the finished product highly susceptible to puncture between the metal plates 2, resulting in a low production yield. Therefore, it is necessary to develop a new injection mold to solve the above problems existing in the current production method of automotive electric drive wiring assemblies. Summary of the Invention

[0003] The purpose of this utility model is to provide an injection mold for an automotive electric drive wiring assembly that is compact in structure and ingenious in design, in order to solve the problem of low production qualification rate in the existing automotive electric drive wiring assembly production method.

[0004] The technical solution of this utility model is:

[0005] An injection mold for an automotive electric drive wiring assembly includes a moving mold and a fixed mold; characterized in that: module A, module B, and a positioning protrusion are provided at the bottom center of the moving mold; positioning pins are provided on module A and the positioning protrusion; three sets of shaping grooves are provided on module A; a connecting slot is provided on module A between the shaping grooves; a shaping cylinder is provided at the center of the shaping groove; a positioning hole is provided at the center of the shaping cylinder; spacer pins are provided between module A and module B; and a positioning slide is slidably mounted on one side of module A via symmetrically arranged guide rails.

[0006] The moving mold is provided with positioning bosses at the four corners of its bottom end.

[0007] The height of the spacer pin is lower than the height of module A.

[0008] One end of the positioning slide is provided with a T-shaped opening; the other end of the positioning slide is provided with three sets of shaping protrusions A at intervals; and the shaping protrusions A are provided with clearance holes.

[0009] The fixed mold is provided with a shaping countersunk hole; the interior of the shaping countersunk hole is provided with three sets of shaping protrusions B; an injection hole is provided between two sets of shaping protrusions B; a positioning pin is installed on the shaping protrusion B; an avoidance groove is provided at one end of the shaping countersunk hole; slide rail grooves are provided on both sides of the avoidance groove on the fixed mold; a positioning slot is provided on one side of the shaping countersunk hole.

[0010] The fixed mold is provided with positioning grooves at the four corners; the positioning grooves correspond to the positioning bosses.

[0011] The positioning pin has a stepped rotating structure; the upper end of the positioning pin has a conical structure.

[0012] The advantages of this utility model are:

[0013] The injection mold for this automotive electric drive wiring assembly is compact and ingeniously designed. By setting spacer pins on the moving mold, the metal plates are isolated from each other, thus solving the problem of low production qualification rate in the existing automotive electric drive wiring assembly production method. It is particularly suitable for the needs of automotive electric drive wiring assembly production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the fixed mold structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the fixed mold structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the moving mold structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the moving mold structure of this utility model;

[0020] Figure 7 This is a schematic diagram of the moving mold and insert of this utility model;

[0021] Figure 8 for Figure 5 Enlarged structural diagram at point A;

[0022] Figure 9 for Figure 7 Enlarged structural diagram at point B;

[0023] Figure 10 A schematic diagram of the wiring assembly for an automotive electric drive system;

[0024] Figure 11 This is a schematic diagram of the insert structure.

[0025] In the diagram: 1. Moving mold; 2. Fixed mold; 3. Module A; 4. Module B; 5. Positioning protrusion; 6. Positioning pin; 7. Shaping groove; 8. Connecting slot; 9. Shaping cylinder; 10. Positioning hole; 11. Spacer pin; 12. Guide slide rail; 13. Positioning slide block; 14. Positioning boss; 15. T-shaped opening; 16. Shaping protrusion A; 17. Clearance hole; 18. Shaping countersunk hole; 19. Shaping protrusion B; 20. Injection hole; 21. Positioning pin; 22. Clearance countersunk groove; 23. Slide rail countersunk groove; 24. Positioning slot; 25. Positioning countersunk groove; 26. Metal sleeve; 27. Metal sheet. Detailed Implementation

[0026] The injection mold for the automotive electric drive wiring assembly includes a moving mold 1 and a fixed mold 2 (see the attached instruction manual). Figure 1 and 2 ).

[0027] Positioning bosses 14 are provided at the four corners of the bottom of the moving mold 1 (see the instruction manual). Figure 5 and 6 The fixed mold 2 has positioning grooves 25 at each of its four corners (see the instruction manual). Figure 3 The positioning groove 25 corresponds to the positioning boss 14. During operation, when the moving mold 1 and the fixed mold 2 are closing, the positioning boss 14 can be inserted into the corresponding positioning groove 25, thus achieving the purpose of accurately completing the mold closing between the moving mold 1 and the fixed mold 2, thereby avoiding the problem of misalignment between the moving mold 1 and the fixed mold 2.

[0028] The bottom center of the moving mold 1 is provided with module A3, module B4 and positioning protrusion 5 (see the instruction manual appendix). Figure 5 and 9 Positioning posts 6 are provided on module A3 and positioning protrusion 5 (see the instruction manual appendix). Figure 8 During operation, the metal sleeve 26 to be assembled is fitted onto the positioning post 6 (see the instruction manual appendix). Figure 8 and 10 ).

[0029] Module A3 has three sets of shaping grooves 7; a connecting slot 8 is provided on module A3 between the shaping grooves 7; a shaping cylinder 9 is provided at the center of the shaping groove 7; a positioning hole 10 is provided at the center of the shaping cylinder 9 (see the instruction manual appendix). Figure 8 During operation, with the cooperation of the shaping groove 7 and the shaping cylinder 9, the plastic fluid enters and is cooled and shaped into the corresponding form.

[0030] A positioning slide block 13 is slidably mounted on one side of module A3 via symmetrically arranged guide rails 12 (see instruction manual appendix). Figure 5 and 6 ).

[0031] One end of the positioning slide 13 is provided with a T-shaped opening 15 (see the instruction manual). Figure 5 and 6 During operation, the external components can drive the positioning slide block 13 to slide back and forth along the guide rail 12 through the T-shaped opening 15.

[0032] The other end of the positioning slide 13 is provided with three sets of shaping protrusions A16 at intervals; the shaping protrusions A16 are provided with clearance holes 17 (see the instruction manual). Figure 8 ).

[0033] The purpose of this positioning slide 13 is to ensure that, during operation, after the metal plate 27 is placed on the moving mold 1, when the positioning slide 13 slides to the leftmost position under the guidance of the guide rail 12, the bolt at one end of the metal plate 27 will be inserted into the clearance hole 17 of the shaping protrusion A16 (see the attached instruction manual). Figure 9 In this way, the positioning slide 13 will complete the positioning of one end of the metal plate 27 through the clearance hole 17.

[0034] A spacer pin 11 is provided between module A3 and module B4; the height of the spacer pin 11 is lower than the height of module A3 (see the instruction manual appendix). Figure 8 and 10 ).

[0035] The purpose of setting the spacer pin 11 is to ensure that during operation, the spacer pin 11 is located between the two sets of metal plates 27, thereby isolating the metal plates 27 from each other and preventing the metal plates 27 from shifting during the injection molding process, which could lead to insufficient distance and quality problems.

[0036] The purpose of setting the height of the spacer pin 11 lower than the height of module A3 is to avoid the problem that when the height of the spacer pin 11 is flush with the height of module A3, the plastic cannot be filled at the position of the spacer pin 11, resulting in the problem of exposed metal plates 27.

[0037] The fixed mold 2 is provided with a shaping countersunk hole 18; the interior of the shaping countersunk hole 18 is provided with three sets of shaping protrusions B19; an injection hole 20 is provided between two sets of shaping protrusions B19. During operation, the injection fluid can be injected into the interior of the mold through the injection hole 20 to achieve the purpose of injection molding.

[0038] A positioning pin 21 is mounted on the shaping protrusion B19; the positioning pin 21 has a stepped rotating structure; the upper end of the positioning pin 21 has a conical structure. The purpose of setting the positioning pin 21 in this way is to allow the positioning pin 21 to be inserted into the corresponding positioning hole 10 during operation, and to press one end of the metal plate 27 tightly with the cooperation of the shaping cylinder 9 through the stepped surface (see the attached instruction manual). Figure 9 ).

[0039] One end of the countersunk hole 18 is provided with a clearance groove 22; the fixed mold 2 on both sides of the clearance groove 22 is provided with a slide rail groove 23; one side of the countersunk hole 18 is provided with a positioning slot 24 (see the instruction manual). Figure 3 ).

[0040] The clearance groove 22 corresponds to the position of the positioning slide block 13; the slide rail groove 23 corresponds to the position of the guide slide rail 12; and the positioning slot 24 corresponds to the position of the positioning protrusion 5. During the mold closing process, the positioning slide block 13 can be inserted into the clearance groove 22, the positioning protrusion 5 can be inserted into the positioning slot 24, and the guide slide rail 12 can be inserted into the slide rail groove 23, thus avoiding interference problems.

[0041] When the injection mold of the automotive electric drive wiring assembly is in operation, the moving mold 1 and the fixed mold 2 are in a separated state; the positioning slide 13 is in the outer position; first, the metal sleeve 26 is fitted onto the positioning post 6, and then the metal plate 27 is placed in the designated position inside the moving mold 1, at which time one end of the metal plate 27 is placed on the shaping cylinder 9; then the positioning slide 13 closes, and the bolt at one end of the metal plate 27 is inserted into the clearance hole 17 of the shaping protrusion A16.

[0042] After the above process is completed, the moving mold 1 and the fixed mold 2 are closed. At this time, the locating pin 21 can be inserted into the corresponding locating hole 10, and with the cooperation of the stepped surface and the molding cylinder 9, one end of the metal plate 27 is pressed tightly. Then, the injection fluid is injected into the interior of the mold through the injection hole 20 to achieve the purpose of injection molding. After injection molding is completed, demolding is performed to enter the next working cycle.

[0043] The injection mold for this automotive electric drive wiring assembly is compact and ingeniously designed. By setting spacer pins 11 on the moving mold 1, the metal plates are isolated from each other, thus solving the problem of low production qualification rate in the existing automotive electric drive wiring assembly production method. It is particularly suitable for the needs of automotive electric drive wiring assembly production.

Claims

1. An injection mold for an automotive electric drive wiring assembly comprising a movable mold half (1) and a stationary mold half (2); characterized in that: The bottom end of the moving die (1) is provided with a module A (3), a module B (4) and a positioning protrusion (5); the module A (3) and the positioning protrusion (5) are provided with positioning columns (6); the module A (3) is provided with three groups of shaping grooves (7); the module A (3) between the shaping grooves (7) is provided with a communication notch (8); the center of the shaping groove (7) is provided with a shaping cylinder (9); the center of the shaping cylinder (9) is provided with a positioning hole (10); the module A (3) and the module B (4) are provided with a spacing needle (11); one side of the module A (3) is provided with a positioning sliding seat (13) through symmetrically arranged guide sliding rails (12).

2. An injection mold for an automotive electrical drive wiring assembly according to claim 1, characterized in that: The bottom end of the moving die (1) is provided with a module A (3), a module B (4) and a positioning protrusion (5); the module A (3) and the positioning protrusion (5) are provided with positioning columns (6); the module A (3) is provided with three groups of shaping grooves (7); the module A (3) between the shaping grooves (7) is provided with a communication notch (8); the center of the shaping groove (7) is provided with a shaping cylinder (9); the center of the shaping cylinder (9) is provided with a positioning hole (10); the module A (3) and the module B (4) are provided with a spacing needle (11); one side of the module A (3) is provided with a positioning sliding seat (13) through symmetrically arranged guide sliding rails (12).

3. An injection mold for an automotive electrical drive wiring assembly according to claim 1, wherein: The height of the spacing needle (11) is lower than the height of the module A (3).

4. An injection mold for an automotive electrical drive wiring assembly according to claim 1, characterized in that: One end of the positioning sliding seat (13) is provided with a T-shaped port (15); the other end of the positioning sliding seat (13) is provided with three groups of shaping protrusions A (16); the shaping protrusions A (16) are provided with avoiding holes (17).

5. An injection mold for an automotive electrical drive wiring assembly according to claim 1, wherein: The fixed die (2) is provided with a shaping counterbore (18); the inside of the shaping counterbore (18) is provided with three groups of shaping protrusions B (19); two groups of the shaping protrusions B (19) are provided with injection holes (20); the shaping protrusions B (19) are provided with positioning pins (21); one end of the shaping counterbore (18) is provided with an avoiding counterbore (22); the fixed die (2) on both sides of the avoiding counterbore (22) is provided with sliding rail counterbores (23); one side of the shaping counterbore (18) is provided with a positioning notch (24).

6. An injection mold for an automotive electrical drive wiring assembly according to claim 2, wherein: The fixed die (2) is provided with a positioning counterbore (25) at the four corners; the positioning counterbore (25) corresponds to the positioning protrusion (14).

7. An injection mold for an automotive electrical drive wiring assembly according to claim 5, wherein: The positioning pin (21) is a stepped rotary body structure; the upper end of the positioning pin (21) is a conical structure.

Images