Precision forging forming die for charging connector main body of new energy vehicle

Abstract

The utility model discloses a new energy vehicle charging connector body precision forging forming die which comprises a connecting handle part, a head part extending for a set distance along an arc path, a prefabricated stepped hole formed in the back arch position of a connecting area of the connecting handle part and the head part in an inwards-concave mode and perpendicular to the end face of the head part, and a lower die and an upper die which can be opened and closed. The lower die and the upper die form a cavity with a charging connector body in a supine posture, the surface of the cavity used for forming the end face part of the head is horizontally arranged, located on the upper die and located at a high position, and a containing cavity used for containing an extrusion head and a sliding cavity used for guiding the extrusion head in a sliding mode are further formed in the lower die. The extrusion head is used for stretching into the cavity to form a prefabricated stepped hole and a head after the lower die and the upper die are closed.

Description

Technical Field

[0001] This application relates to the field of precision forging forming mold technology, specifically a precision forging forming mold for the main body of a charging connector for new energy vehicles. Background Technology

[0002] The charging connector body of a new energy vehicle is a key component in the charging system of a new energy vehicle. It is usually designed as an arc-shaped structure that is easy to handle and operate. In order to ensure strength and lightness, it is usually made of aluminum alloy material through a forging process. In the existing technology, the charging connector body is directly forged by horizontally dividing the arc-shaped radial plane, thus forming a completely solid forging. This has the disadvantages of low material utilization and large machining allowance. Therefore, it is necessary to improve it. Summary of the Invention

[0003] The purpose of this application is to provide a precision forging mold for the main body of a new energy vehicle charging connector, so as to solve the problems in the prior art.

[0004] To achieve the above objectives, this application provides the following technical solution: a precision forging mold for a new energy vehicle charging connector body, the charging connector body including a connecting handle 1 and a head 2 extending a set distance along an arc path, and a pre-formed stepped hole 3 formed concavely in the back arch position of the connection area of ​​the connecting handle 1 and the head 2 and perpendicular to the end face of the head 2, including a lower mold 5 and an upper mold 6 that can be opened and closed, the lower mold 5 and the upper mold 6 forming a cavity 8 in a supine position for the charging connector body, wherein the surface of the cavity 8 used to form the end face portion of the head 2 is horizontally arranged and located on the upper mold 6 at a high position, the lower mold 5 also forming a receiving cavity 502 for accommodating an extrusion head 7 and a sliding cavity 503 for slidingly guiding the extrusion head 7, the extrusion head 7 being used to extend into the cavity 8 after the lower mold 5 and the upper mold 6 are closed to form the pre-formed stepped hole 3 and the head 2.

[0005] Furthermore, the pre-formed stepped hole 3 includes a coaxially integrated first hole section 301 and a second hole section 302. The extrusion head 7 includes a flange 703 housed in the receiving cavity 502 and a first rod section 701 and a second rod section 702 respectively applied to form the first hole section 301 and the second hole section 302. The first rod section 701 is slidably engaged with the sliding cavity 503, and the depth of the receiving cavity 502 is adapted to the displacement stroke of the extrusion head 7.

[0006] Furthermore, the precision forging mold for the main body of the new energy vehicle charging connector also includes a pad 4 located at the bottom of the lower mold 5. The pad 4 has a through hole 401 coaxial with the flange 703. The radial dimension of the through hole 401 is smaller than the radial dimension of the flange 703. The end face of the flange 703 abuts against the pad 4, and the through hole 401 is used for the linear drive component to extend into and connect with the flange 703.

[0007] Furthermore, the lower mold 5 has an abutment block 501 protruding from the upper end toward the upper mold 6. The abutment block 501 is located on the side directly opposite the end face of the connecting handle 1. The upper mold 6 has a side wall 601 that slides and abuts against the inner wall of the abutment block 501 to balance the horizontal component of the upper mold 6.

[0008] The beneficial technical effects of this application are as follows: The precision forging mold for the main body of the new energy vehicle charging connector provided by this application forms a cavity in a supine position for forming the main body of the charging connector, which has an overall arc structure. This allows for full utilization of the cavity at the connecting shank position to position the blank, ensuring reliable positioning of the blank within the cavity. After the blank is placed in the cavity, the upper and lower molds close to form the connecting shank and the arc-shaped structural solid part between it and the head. Then, the extrusion head rises under the drive of the linear drive component to form the pre-made stepped hole, while simultaneously extruding the material to the head end face to complete the overall filling. In this way, on the one hand, a smaller blank than that used in ordinary open die forging can be used, and the raw material can flow towards the head during forming, thereby reducing the overall forming force. On the other hand, it saves raw materials and improves the utilization rate of raw materials. By setting an abutment block to cooperate with the upper mold, the balance component force is fully offset, reducing the product misalignment. Attached Figure Description

[0009] Figure 1 This is a cross-sectional view of the precision forging mold for the main body of the new energy vehicle charging connector in this application;

[0010] Figure 2 for Figure 1 Sectional view of AA;

[0011] Figure 3 This is a three-dimensional schematic diagram of the main precision-forged component of the new energy vehicle charging connector in this application;

[0012] Figure 4 This is a front view of the precision forged main body of the new energy vehicle charging connector in this application;

[0013] In the figure: 1. Connecting handle; 2. Head; 3. Pre-fabricated stepped hole; 301 First hole section; 302 Second hole section; 4. Pad plate; 401 Through hole; 5. Lower die; 501 Abutting block; 502 Receiving cavity; 503 Sliding cavity; 6. Upper die; 601 Side wall; 7. Extrusion head; 701 First rod section; 702 Second rod section; 703 Flange; 8. Cavity. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0015] Please refer to the following: Figures 1 to 4 A precision forging mold for a new energy vehicle charging connector body is disclosed. The charging connector body includes a connecting handle 1 and a head 2 extending a predetermined distance along an arc path, as well as a pre-formed stepped hole 3 formed concavely at the back arch position of the connection area between the connecting handle 1 and the head 2 and perpendicular to the end face of the head 2. The mold includes an openable lower mold 5 and an upper mold 6. The lower mold 5 and the upper mold 6 form a cavity 8 in a supine position for the charging connector body. The surface of the cavity 8 used for forming the end face of the head 2 is horizontally arranged and located at a high position on the upper mold 6. The lower mold 5 also has a receiving cavity 502 for accommodating an extrusion head 7 and a sliding cavity 503 for slidingly guiding the extrusion head 7. The extrusion head 7 is used to extend into the cavity 8 after the lower mold 5 and the upper mold 6 are closed to form the pre-formed stepped hole 3 and the head 2.

[0016] According to the structure provided in this embodiment, the precision forging mold for the main body of the new energy vehicle charging connector provided in this application forms a cavity with a supine posture for forming the main body of the charging connector, which has an overall arc structure. It can make full use of the cavity 8 at the position of the connecting handle 1 to position the blank, ensuring that the blank is reliably positioned in the cavity 8. After the blank is placed in the cavity 8, the upper mold 6 and the lower mold 5 close to form the connecting handle 1 and the arc structure solid part between it and the head 2. Then, the extrusion head 7 rises under the drive of the linear drive to form the pre-made stepped hole 3, and at the same time, the material is extruded to the end face of the head 2 to complete the overall filling. In this way, on the one hand, a smaller blank than ordinary open die forging can be used, and the raw material can flow to the head during forming, thereby reducing the overall forming force. On the other hand, it saves raw materials and improves the utilization rate of raw materials. Here, the pre-made stepped hole 3 is obtained directly in the precision forging process through the above structure, which can significantly reduce the amount of machining at the pre-made stepped hole 3 or even achieve a state of no machining, effectively reducing processing costs and material costs, which is far superior to the prior art.

[0017] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4The pre-formed stepped hole 3 includes a coaxially integrated first hole section 301 and a second hole section 302. The extrusion head 7 includes a flange 703 housed in a receiving cavity 502 and a first rod section 701 and a second rod section 702 respectively applied to form the first hole section 301 and the second hole section 302. The first rod section 701 is slidably fitted with the sliding cavity 503, and the depth of the receiving cavity 502 is adapted to the displacement stroke of the extrusion head 7. Here, it can be understood that the radial dimension of the second hole section 302 is smaller than the radial dimension of the first hole section 301. In this way, the second rod section 702 can be guided and retracted to the opening of the sliding cavity 503 along with the first rod section 701, which is integrated with it, thus opening the material flow path. In this way, the blank placed in the half cavity of the lower die 5 is subjected to the upper die 6 and When the lower mold 5 closes, the excess material after the connecting handle 1 is formed can flow smoothly to one end of the head 2. After the mold is closed, the extrusion head 7, under the pushing action of the linear drive, has its first rod segment 701 guided by the sliding cavity 503 and accurately displaced into the cavity 8. While extruding the material to the end of the head 2, it forms the first hole segment 301 and the second hole segment 302 of the pre-made stepped hole 3. When the upper end face of the flange 703 abuts against the bottom surface of the receiving cavity 502, the extrusion head 7 reaches the set position and completes the final forming. In this way, the positional accuracy and depth accuracy of the first hole segment 301 and the second hole segment 302 are guaranteed. Here, it can be understood that the displacement path of the extrusion head 7 is parallel to the movement path of the upper mold 6 relative to the lower mold 5, that is, the axis of the extrusion head 7 is perpendicular to the end face of the head 2.

[0018] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The precision forging mold for the main body of the new energy vehicle charging connector also includes a pad 4 located at the bottom of the lower mold 5. In this embodiment, the pad 4 and the lower mold 5 can be connected by fasteners. The pad 4 has a through hole 401 coaxial with the flange 703. The radial dimension of the through hole 401 is smaller than the radial dimension of the flange 703. The end face of the flange 703 abuts against the pad 4. The through hole 401 is used for the linear drive component to extend into and connect with the flange 703. In this way, during the forming process, the external pushing force on the extrusion head 7 can be borne by the pad 4, ensuring that the position of the extrusion head 7 in the reset state is stable and has good repeatability. Here, the precision forging mold for the main body of the new energy vehicle charging connector can be installed on a hydraulic press. The linear drive component can be the output end of a hydraulic cylinder or a mechanical push rod / pull rod, etc., which are existing technologies. In addition, the installation and connection of the mold and the equipment can use existing technologies.

[0019] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4The lower die 5 protrudes from the upper die 6 to form an abutment block 501. The abutment block 501 is located on the side directly opposite the end face of the connecting handle 1. The upper die 6 has a side wall 601 that slides and abuts against the inner wall of the abutment block 501 to balance the horizontal component force of the upper die 6. By setting the abutment block 501 to cooperate with the upper die 6, the balancing component force is fully offset, the product misalignment is reduced, and the quality of the precision forging of the main body of the new energy vehicle charging connector is guaranteed.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0023] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision forging mold for a charging connector body for a new energy vehicle, the charging connector body comprising a connecting handle (1) and a head (2) extending a predetermined distance along an arc path, and a pre-formed stepped hole (3) recessed in the back arch position of the connecting handle (1) and the head (2) and perpendicular to the end face of the head (2), characterized in that: The device includes a lower mold (5) and an upper mold (6) that can be opened and closed. The lower mold (5) and the upper mold (6) form a cavity (8) in which the charging connector body is in a supine position. The surface of the cavity (8) used to form the end face of the head (2) is horizontally arranged and located on the upper mold (6) at a high position. The lower mold (5) also has a receiving cavity (502) for accommodating the extrusion head (7) and a sliding cavity (503) for slidingly guiding the extrusion head (7). The extrusion head (7) is used to extend into the cavity (8) after the lower mold (5) and the upper mold (6) are closed to form the prefabricated stepped hole (3) and the head (2).

2. The precision forging mold for the main body of the new energy vehicle charging connector according to claim 1, characterized in that: The prefabricated stepped hole (3) includes a first hole section (301) and a second hole section (302) that are coaxially integrated. The extrusion head (7) includes a flange (703) housed in the receiving cavity (502) and a first rod section (701) and a second rod section (702) respectively applied to form the first hole section (301) and the second hole section (302). The first rod section (701) is slidably engaged with the sliding cavity (503). The depth of the receiving cavity (502) is adapted to the displacement stroke of the extrusion head (7).

3. The new energy vehicle charging connector body precision forging forming die according to claim 2, characterized in that: It also includes a pad (4) at the bottom of the lower mold (5), the pad (4) having a through hole (401) coaxial with the flange (703), the radial dimension of the through hole (401) being smaller than the radial dimension of the flange (703); the end face of the flange (703) abuts against the pad (4), and the through hole (401) is used for the linear drive component to extend into and connect with the flange (703).

4. The new energy vehicle charging connector body precision forging forming die according to claim 2, characterized in that: The lower mold (5) has a protruding abutment block (501) at its upper end toward the upper mold (6). The abutment block (501) is located on the side opposite the end face of the connecting handle (1). The upper mold (6) has a side wall (601) that slides and abuts against the inner wall of the abutment block (501) to balance the horizontal component of the upper mold (6).

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