Hydrogen energy automobile power support cutting clamping device

Abstract

This utility model discloses a cutting and clamping device for a power bracket of a hydrogen fuel cell vehicle, relating to the field of automotive power unit component manufacturing technology. Key technical features include a base and symmetrically arranged first lateral pressure plates. The first lateral pressure plates are movably mounted on the base and are used to fix the side of the workpiece. A lateral positioning component is provided on one side of the first lateral pressure plate for positioning the side of the workpiece. A floating support is mounted on the base and located between the two first lateral pressure plates, supporting the workpiece plane. A positioning block is fixedly connected to the base and distributed between the floating support and the first lateral pressure plates. This effectively restricts the six degrees of freedom of the workpiece, improves workpiece positioning accuracy, and meets the high dimensional accuracy requirements of hydrogen fuel cell vehicle power bracket assembly.

Description

Technical Field

[0001] This utility model relates to the field of automotive power unit component manufacturing technology, and more specifically, it relates to a cutting and clamping device for power brackets of hydrogen fuel cell vehicles. Background Technology

[0002] This bracket is mainly used in the power system of hydrogen fuel cell vehicle battery packs to provide support and connection for the power system assembly and ensure the stability of the hydrogen power system. Therefore, the assembly dimensions of the parts require high precision and the overall structural strength requires high strength.

[0003] Because the overall structural strength of the bracket is required to be high and the assembly dimensions require high precision, it is generally made by forging and then machining. The shape of the forged blank needs to be similar to the structure of the finished bracket part in order to reduce the removal rate of metal material. Since the blank structure is an irregular part, special cutting manufacturing process and cutting clamping device need to be designed to ensure that the finished part after cutting meets the design and use requirements. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cutting and clamping device for power brackets of hydrogen fuel cell vehicles.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A clamping device for machining power brackets for hydrogen fuel cell vehicles includes a base and further includes:

[0007] A first lateral pressure plate is symmetrically arranged and movably mounted on a base. The first lateral pressure plate is used to fix the side of the workpiece. A lateral positioning component is provided on one side of the first lateral pressure plate, and the lateral positioning component is used to position the side of the workpiece.

[0008] A floating support is provided, which is disposed on the base and located between two first lateral pressure plates. The floating support is used to support the workpiece plane.

[0009] The positioning block is fixedly connected to the base and is distributed between the floating support and the first lateral pressure plate. The positioning block is used to support the lower surface of the workpiece.

[0010] Preferably, a first hydraulic rod is fixedly connected to the base in a symmetrical manner, and a rotating shaft is fixedly connected to the moving end of the first hydraulic rod. The rotating shaft is rotatably connected to the first lateral pressure plate.

[0011] A rotating block is rotatably connected to the end of the first lateral pressure plate, and a fixing block is fixedly connected to the end of the rotating block. The fixing block is fixedly connected to the side wall of the first hydraulic rod.

[0012] Preferably, the lateral positioning component includes:

[0013] A first fixed seat is fixedly connected to a base. A second lateral pressure plate that moves horizontally is movably disposed on the first fixed seat. One of the positioning blocks is disposed at the end of the second lateral pressure plate and fixedly connected to the first fixed seat. A first lateral positioning block is fixedly connected to the first fixed seat. The first lateral positioning block is disposed on the side of the second lateral pressure plate away from the first lateral pressure plate.

[0014] The second fixed seat is fixedly connected to the base. A positioning plate is fixedly connected to the second fixed seat. A second lateral positioning block is fixedly connected to the inner side wall of the positioning plate. One of the positioning blocks is disposed at the end of the second lateral positioning block and fixedly connected to the second fixed seat.

[0015] Preferably, a second hydraulic rod is fixedly connected to the first fixed base, and the movable end of the second hydraulic rod is fixedly connected to the side wall of the second lateral pressure plate.

[0016] Preferably, a third fixing seat is fixedly connected to the upper surface of the base, the third fixing seat is located between two first lateral pressure plates, and one of the positioning blocks is fixedly connected to the third fixing seat;

[0017] The floating support is fixedly connected to the third fixed base. There are two floating supports, and the two floating supports are symmetrically arranged about the positioning block on the third fixed base.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In this utility model, a three-dimensional positioning system is formed by the three-point planar positioning of the positioning block, the two-point X-direction positioning of the first lateral positioning block and the second lateral positioning block, and the length direction positioning of the positioning plate. This effectively restricts the six degrees of freedom of the workpiece, improves the positioning accuracy of the workpiece, and meets the high dimensional accuracy requirements of the hydrogen energy vehicle power bracket assembly.

[0020] 2. In this utility model, the first and second lateral pressure plates, which are symmetrically arranged, clamp the sides of the workpiece synchronously through hydraulic drive, forming a uniform clamping force distribution. This can effectively resist the cutting force generated during the cutting process and prevent the workpiece from shifting or deforming. For irregularly shaped parts such as hydrogen energy vehicle power brackets, which have high structural strength requirements, a stable clamping force can ensure that the deformation during the cutting process is controllable and meets the dimensional accuracy requirements of the finished parts. Attached Figure Description

[0021] Figure 1 A schematic diagram of the workpiece structure that needs to be cut in the existing technology. Figure 1 ;

[0022] Figure 2 A schematic diagram of the workpiece structure that needs to be cut in the existing technology. Figure 2 ;

[0023] Figure 3 This utility model provides a schematic diagram of the connection structure between a cutting and clamping device for a power bracket of a hydrogen fuel cell vehicle and a workpiece in the prior art.

[0024] Figure 4 This utility model presents an overall structural schematic diagram of a cutting and clamping device for a power bracket of a hydrogen fuel cell vehicle.

[0025] In the diagram: 1. Base; 2. First lateral pressure plate; 4. Floating support; 5. Positioning block; 6. First hydraulic rod; 7. Rotating shaft; 8. Rotating block; 9. Fixing block; 10. First fixed seat; 11. Second lateral pressure plate; 12. First lateral positioning block; 13. Second fixed seat; 14. Positioning plate; 15. Second lateral positioning block; 16. Second hydraulic rod; 17. Third fixed seat. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0029] Reference Figures 1-4 As shown.

[0030] Example 1 further illustrates the cutting and clamping device for power brackets of hydrogen fuel cell vehicles proposed in this utility model.

[0031] A cutting and clamping device for a power bracket for a hydrogen fuel cell vehicle includes a base 1 and symmetrically arranged first lateral pressure plates 2. The first lateral pressure plates 2 are movably mounted on the base 1 and are used to fix the side of the workpiece. A lateral positioning component is provided on one side of the first lateral pressure plate 2 and is used to position the side of the workpiece.

[0032] A floating support 4 is mounted on the base 1 and positioned between two first lateral pressure plates 2. The floating support 4 is used to support the workpiece plane. The floating support 4 includes an outer shell, with a spring fixedly connected to the bottom of the outer shell. A support block is fixedly connected to the upper end of the spring, and the upper end of the support block passes through the top of the outer shell and extends to the upper side of the outer shell. The floating support 4 increases the support points on the bottom surface of the workpiece, changing the traditional three-point support to multi-point support, which significantly improves the support rigidity of the workpiece in the Z direction. Tests have shown that after installing the floating support 4, the vibration amplitude of the workpiece during the cutting process is reduced by 40%-60%, effectively reducing surface machining quality defects caused by vibration (such as worsened surface roughness and accelerated tool wear), and improving the surface quality and tool life of the cutting process.

[0033] Positioning block 5 is fixedly connected to base 1. Positioning block 5 is distributed between floating support 4 and first lateral pressure plate 2, and is used to support the lower surface of workpiece.

[0034] A first hydraulic rod 6 is fixedly connected to the base 1 in a symmetrical arrangement. The moving end of the first hydraulic rod 6 is fixedly connected to a rotating shaft 7, which is rotatably connected to the first lateral pressure plate 2.

[0035] The end of the first lateral pressure plate 2 is rotatably connected to a rotating block 8, and the end of the rotating block 8 is fixedly connected to a fixing block 9, which is fixedly connected to the side wall of the first hydraulic rod 6.

[0036] The lateral positioning assembly includes a first fixed base 10, which is fixedly connected to the base 1. A second lateral pressure plate 11 that moves horizontally is movably disposed on the first fixed base 10. A positioning block 5 is disposed at the end of the second lateral pressure plate 11 and fixedly connected to the first fixed base 10. A first lateral positioning block 12 is fixedly connected to the first fixed base 10. The first lateral positioning block 12 is disposed on the side of the second lateral pressure plate 11 away from the first lateral pressure plate 2.

[0037] The second fixed seat 13 is fixedly connected to the base 1. A positioning plate 14 is fixedly connected to the second fixed seat 13. A second lateral positioning block 15 is fixedly connected to the inner side wall of the positioning plate 14. One of the positioning blocks 5 is located at the end of the second lateral positioning block 15 and is fixedly connected to the second fixed seat 13.

[0038] A second hydraulic rod 16 is fixedly connected to the first fixed base 10, and the moving end of the second hydraulic rod 16 is fixedly connected to the side wall of the second lateral pressure plate 11.

[0039] A third fixing seat 17 is fixedly connected to the upper surface of the base 1. The third fixing seat 17 is located between two first lateral pressure plates 2, and one of the positioning blocks 5 is fixedly connected to the third fixing seat 17.

[0040] The floating support 4 is fixedly connected to the third fixed base 17. There are two floating support 4, and the two floating support 4 are symmetrically arranged about the positioning block 5 on the third fixed base 17.

[0041] Working principle: The worker places the forging blank on the base 1. The lower surface of the blank contacts the top surface of the positioning block 5. There are 3 positioning blocks 5 arranged in a triangle. Their top surfaces form the same positioning plane. By using the principle of three points to determine a plane, the workpiece is horizontally limited in the Z-axis direction, ensuring that the blank is placed horizontally.

[0042] The first lateral positioning block 12 and the second lateral positioning block 15 in the lateral positioning assembly limit the two sides of the workpiece respectively. The first lateral positioning block 12 is fixed to the first fixed base 10 and is located on the side of the second lateral pressure plate 11 away from the first lateral pressure plate 2. The second lateral positioning block 15 is fixed to the inner side wall of the positioning plate 14. The two are arranged parallel to each other along the X direction of the base. The distance between their positioning surfaces is precisely matched with the lateral positioning size of the workpiece, forming a two-point positioning structure in the X-axis direction, which accurately positions the workpiece along the X direction.

[0043] The positioning plate 14 cooperates with the second fixed seat 13 to limit the length of the workpiece and ensure the positional accuracy of the workpiece in the length direction.

[0044] When the first hydraulic rod 6 is activated, its moving end pushes the rotating shaft 7. Since the rotating shaft 7 is rotatably connected to the first lateral pressure plate 2, and the end fixing block 9 of the rotating block 8 (rotatably connected to the end of the first lateral pressure plate 2) is fixed to the side wall of the first hydraulic rod 6, a four-bar linkage is formed. The linear motion of the first hydraulic rod 6 is converted into the rotational motion of the first lateral pressure plate 2 around the rotating shaft 7 through the rotating shaft 7 and the rotating block 8, so that the first lateral pressure plate 2 moves toward the side of the workpiece until it cooperates with the lateral positioning component to achieve point-to-point pressing of the side of the workpiece.

[0045] The second hydraulic rod 16 is activated, and its moving end pushes the second lateral pressure plate 11 to move horizontally on the first fixed seat 10, moving closer to the side of the workpiece until it cooperates with the first lateral positioning block 12, pressing the side of the workpiece from the other side, forming a symmetrical clamping force with the first lateral pressure plate 2, and ensuring the clamping stability of the workpiece in the X direction.

[0046] The floating support 4 is fixed to the third fixed base 17, located between the two first lateral pressure plates 2, and symmetrically arranged with respect to the positioning block 5 on the third fixed base 17. When the workpiece is placed on the positioning block 5, the top support surface of the floating support 4 is flush with the positioning surface of the positioning block 5, abutting against the bottom surface of the workpiece, increasing the workpiece plane positioning point. The floating support 4 adopts an elastic support structure, which can adaptively adjust the support force according to the shape of the bottom surface of the workpiece, enhance the support rigidity of the workpiece in the Z direction, and reduce vibration during the cutting process.

[0047] After clamping, check the large planes P1, P4, P5, P6, concave surfaces P2, P7, P8, and vertical surfaces P3, P9 (e.g., ...). Figures 1-2 The workpiece can be removed by milling, drilling, and other machining operations on surfaces that require cutting. After machining, the first hydraulic rod 6 and the second hydraulic rod 16 are reversed to release the first lateral pressure plate 2 and the second lateral pressure plate 11.

[0048] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A power support cutting clamping device for hydrogen energy vehicles, comprising a base (1), characterized in that, Also includes: A first lateral pressure plate (2) is symmetrically arranged and movably mounted on a base (1). The first lateral pressure plate (2) is used to fix the side of the workpiece. A lateral positioning component is provided on one side of the first lateral pressure plate (2). The lateral positioning component is used to position the side of the workpiece. A floating support (4) is provided on the base (1) and located between two first lateral pressure plates (2). The floating support (4) is used to support the workpiece plane. The positioning block (5) is fixedly connected to the base (1). The positioning block (5) is distributed between the floating support (4) and the first lateral pressure plate (2), and the positioning block (5) is used to support the lower surface of the workpiece.

2. The cutting and clamping device for a power support of a hydrogen energy automobile according to claim 1, characterized in that, The base (1) is fixedly connected to a first hydraulic rod (6) arranged symmetrically. The moving end of the first hydraulic rod (6) is fixedly connected to a rotating shaft (7). The rotating shaft (7) is rotatably connected to the first lateral pressure plate (2).

3. The cutting and clamping device for a power support of a hydrogen energy automobile according to claim 2, characterized in that, The end of the first lateral pressure plate (2) is rotatably connected to a rotating block (8), and the end of the rotating block (8) is fixedly connected to a fixing block (9), which is fixedly connected to the side wall of the first hydraulic rod (6).

4. The cutting and clamping device for a power support of a hydrogen energy automobile according to claim 3, characterized in that, The lateral positioning component includes: A first fixed seat (10) is fixedly connected to a base (1). A second lateral pressure plate (11) that moves horizontally is movably disposed on the first fixed seat (10). One of the positioning blocks (5) is disposed at the end of the second lateral pressure plate (11) and fixedly connected to the first fixed seat (10). A first lateral positioning block (12) is fixedly connected to the first fixed seat (10). The first lateral positioning block (12) is disposed on the side of the second lateral pressure plate (11) away from the first lateral pressure plate (2). The second fixed seat (13) is fixedly connected to the base (1). A positioning plate (14) is fixedly connected to the second fixed seat (13). A second lateral positioning block (15) is fixedly connected to the inner side wall of the positioning plate (14). One of the positioning blocks (5) is located at the end of the second lateral positioning block (15) and fixedly connected to the second fixed seat (13).

5. The cutting and clamping device for a power support of a hydrogen energy automobile according to claim 4, characterized in that, A second hydraulic rod (16) is fixedly connected to the first fixed seat (10), and the moving end of the second hydraulic rod (16) is fixedly connected to the side wall of the second lateral pressure plate (11).

6. The cutting and clamping device for a power support of a hydrogen energy automobile according to claim 5, characterized in that, The upper surface of the base (1) is fixedly connected to a third fixing seat (17), which is located between two first lateral pressure plates (2), and one of the positioning blocks (5) is fixedly connected to the third fixing seat (17).

7. The cutting and clamping device for a power support of a hydrogen energy automobile according to claim 6, characterized in that, The floating support (4) is fixedly connected to the third fixed seat (17). There are two floating support (4), and the two floating support (4) are symmetrically arranged about the positioning block (5) on the third fixed seat (17).

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