A new energy automobile power support workpiece polishing machining clamping device

Abstract

This utility model discloses a grinding and clamping device for a new energy vehicle power support workpiece, relating to the field of automotive power unit component manufacturing technology. Key technical features include a base and an end face pressure plate rotatably connected to the base, used to press and fix the end face of the workpiece. A top face pressure plate is mounted on the base, used to press and fix the top face of the workpiece. A round pin is mounted on the base, located on one side of the top face pressure plate, used to position holes on the workpiece. The effect is that the workpiece positioning error can be controlled within 0.05mm through the cooperation of the round pin, diamond pin, and positioning seat, meeting the high requirements for assembly dimensional accuracy and ensuring the dimensional stability of the workpiece after processing. The symmetrically arranged end face pressure plates and the triangularly distributed top face pressure plates press and fix the workpiece, ensuring uniform force distribution on the workpiece.

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 grinding and clamping device for power support workpieces in new energy vehicles. Background Technology

[0002] In the power system of hydrogen fuel cell vehicles, the bracket is an important supporting component, mainly used to support and connect the power system assembly and ensure the stable operation of the hydrogen power system. Based on this application scenario, the parts not only need to meet strict assembly dimensional accuracy requirements, but also need to have high overall structural strength.

[0003] In terms of manufacturing process planning, given the dual requirements of structural strength and assembly accuracy for the bracket, a process scheme of forging blank followed by cutting and grinding is usually adopted. In order to reduce the amount of material removed, the shape of the forged blank must match the structure of the finished bracket. Since the blank is an irregular shape, in order to ensure that the parts after cutting meet the design and use standards, a special cutting process route and workpiece clamping device need to be designed to achieve the process goal of high-precision machining. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a grinding and clamping device for the power support workpiece of new energy vehicles.

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

[0006] A grinding and clamping device for power support workpieces in new energy vehicles, including a base, and further comprising:

[0007] An end face pressure plate is rotatably connected to a base and is used to press and fix the end face of a workpiece.

[0008] A top pressure plate is mounted on the base and is used to press and fix the top surface of the workpiece.

[0009] A round pin is provided on the base and is located on one side of the top pressure plate. The round pin is used to position the holes on the workpiece.

[0010] A diamond pin is provided on the base, and the diamond pin is located on the side of the top pressure plate away from the round pin.

[0011] Preferably, there are two end face pressure plates arranged symmetrically, and a first fixing block arranged symmetrically is fixedly connected to the base, and the end face pressure plates are rotatably connected to the first fixing block.

[0012] Preferably, a first rotating rod is fixedly connected to the side wall of the end face pressure plate, and a first rotating plate is rotatably connected to both ends of the first rotating rod, with the lower end of the first rotating plate rotatably connected to a first fixed block.

[0013] Preferably, a first hydraulic cylinder is fixedly connected to the first fixing block, a first connecting block is fixedly connected to the upper end face of the first hydraulic cylinder, and the first connecting block is rotatably connected to the lower end face of the end face pressure plate.

[0014] Preferably, there are at least three top pressure plates, which are located between two end pressure plates and arranged in a triangular pattern.

[0015] Preferably, a second connecting block is rotatably connected to the lower end of the top pressure plate, and a second hydraulic cylinder is fixedly connected to the lower end of the second connecting block, which is fixedly connected to the base.

[0016] Preferably, a second fixing block is fixedly connected to the hydraulic cylinder, and a second rotating plate is rotatably connected to the side wall of the second fixing block;

[0017] A second rotating rod is fixedly connected to the side wall of the top pressure plate, and the end of the second rotating rod is rotatably connected to the upper end face of the second rotating plate.

[0018] Preferably, a positioning seat is fixedly connected to the base, the positioning seat is located between the two end face pressure plates and the top face pressure plate, and the round pin and the diamond pin are fixedly connected to the positioning seat and located on both sides of the top face pressure plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In this utility model, the workpiece positioning error can be controlled within 0.05mm through the cooperation of round pin, diamond pin and positioning seat, which meets the requirements of high assembly dimension accuracy and ensures the dimensional stability of the workpiece after processing.

[0021] 2. In this utility model, the workpiece is pressed and fixed by the symmetrically arranged end face pressure plates and the triangularly distributed top face pressure plates, which can make the workpiece bear force evenly and make the maximum deformation of the workpiece during the processing less than 0.03mm, thereby facilitating the grinding and processing of parts with high strength requirements. Attached Figure Description

[0022] Figure 1 Schematic diagram of existing power support structure for hydrogen fuel cell vehicles Figure 1 ;

[0023] Figure 2 Schematic diagram of existing power support structure for hydrogen fuel cell vehicles Figure 2 ;

[0024] Figure 3 This utility model provides a schematic diagram of the connection structure between a grinding and clamping device for a power support workpiece of a new energy vehicle and an existing power support workpiece for a hydrogen energy vehicle.

[0025] Figure 4 This utility model presents an overall structural schematic diagram of a grinding and clamping device for power support workpieces in new energy vehicles.

[0026] In the diagram: 1. Base; 2. End face pressure plate; 3. Top face pressure plate; 4. Round pin; 5. Diamond pin; 6. First fixing block; 7. First rotating rod; 8. First rotating plate; 9. First hydraulic cylinder; 10. First connecting block; 11. Second connecting block; 12. Second hydraulic cylinder; 13. Second fixing block; 14. Second rotating plate; 15. Second rotating rod; 16. Positioning seat. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Reference Figures 1-4 As shown.

[0031] Example 1 further illustrates the grinding and clamping device for the power support workpiece of a new energy vehicle proposed in this utility model.

[0032] A new energy vehicle power support workpiece grinding and clamping device includes a base 1 and an end face pressure plate 2. The end face pressure plate 2 is rotatably connected to the base 1 and is used to press and fix the end face of the workpiece.

[0033] Top pressure plate 3 is set on base 1 and is used to press and fix the top surface of the workpiece.

[0034] The round pin 4 is set on the base 1 and is located on one side of the top pressure plate 3. The round pin 4 is used to position the holes on the workpiece.

[0035] Diamond pin 5 is set on the base 1 and is located on the side of the top pressure plate 3 away from the round pin 4.

[0036] There are two end face pressure plates 2 arranged symmetrically. The base 1 is fixedly connected to a first fixing block 6 arranged symmetrically. The end face pressure plates 2 are rotatably connected to the first fixing block 6.

[0037] A first rotating rod 7 is fixedly connected to the side wall of the end face pressure plate 2. Both ends of the first rotating rod 7 are rotatably connected to a first rotating plate 8. The lower end of the first rotating plate 8 is rotatably connected to the first fixed block 6.

[0038] A first hydraulic cylinder 9 is fixedly connected to the first fixed block 6. A first connecting block 10 is fixedly connected to the upper end face of the first hydraulic cylinder 9. The first connecting block 10 is rotatably connected to the lower end face of the end face pressure plate 2.

[0039] There are at least three top pressure plates 3, which are located between the two end pressure plates 2 and are distributed in a triangular pattern.

[0040] The lower end of the top pressure plate 3 is rotatably connected to a second connecting block 11, and the lower end of the second connecting block 11 is fixedly connected to a second hydraulic cylinder 12, which is fixedly connected to the base 1.

[0041] A second fixing block 13 is fixedly connected to the hydraulic cylinder 12, and a second rotating plate 14 is rotatably connected to the side wall of the second fixing block 13.

[0042] A second rotating rod 15 is fixedly connected to the side wall of the top pressure plate 3, and the end of the second rotating rod 15 is rotatably connected to the upper end face of the second rotating plate 14.

[0043] A positioning seat 16 is fixedly connected to the base 1. The positioning seat 16 is located between the two end face pressure plates 2 and the top face pressure plate 3. The round pin 4 and the diamond pin 5 are fixedly connected to the positioning seat 16 and located on both sides of the top face pressure plate 3.

[0044] Working principle: The positioning system is constructed by using the round pin 4 and diamond pin 5 on the positioning base 16 to form a "one-face two-pin" positioning system. The round pin 4 is inserted into the workpiece hole, and the diamond pin 5 is adapted to another positioning hole of the workpiece. This restricts the translation and rotation freedom of the workpiece in the X, Y and Z axes, achieving complete positioning and effectively improving the positional accuracy of the workpiece on the base 1, laying the foundation for subsequent processing.

[0045] Action execution: Two symmetrically distributed end face pressure plates 2 are rotatably connected to the base 1 via the first fixing block 6. When the first hydraulic cylinder 9 is activated, its piston rod pushes the first connecting block 10, thereby causing the end face pressure plates 2 to rotate around the first fixing block 6.

[0046] Clamping process: The extension and retraction of the first hydraulic cylinder 9 drives the linkage mechanism composed of the first rotating rod 7 and the first rotating plate 8, causing the end face pressure plate 2 to gradually adhere to the two end faces of the workpiece. Figure 1 Apply pressure to the P5 and P6 planes to initially fix the workpiece and prevent lateral displacement during processing.

[0047] The three top pressure plates 3 are arranged in a triangle between the two end pressure plates 2. This layout can form a stable clamping force triangle zone, which acts evenly on the top surface of the workpiece. Figure 1 Plane P1.

[0048] The second hydraulic cylinder 12 pushes the second connecting block 11, causing the top pressure plate 3 to move downward. At the same time, the linkage mechanism formed by the second rotating rod 15 and the second rotating plate 14 assists in adjusting the angle of the top pressure plate 3 to ensure that it is in close contact with the top surface of the workpiece.

[0049] First, fix both sides of the workpiece with the end face pressure plate 2, and then activate the top face pressure plate 3 to press the top surface, which can prevent the workpiece from deforming due to uneven force.

[0050] When the top surface is completed, as shown Figure 1 , Figure 2 After machining the feature surfaces P3, P4, P7, P8, and P9, the end face pressure plate 2 is lifted under the action of the first hydraulic cylinder 9, while the top face pressure plate 3 remains pressed. Then, the side planes are machined as follows: Figure 2 Machining of planes P5 and P6.

[0051] 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 grinding and clamping device for a new energy vehicle power support workpiece, comprising a base (1), characterized in that, Also includes: End face pressure plate (2), the end face pressure plate (2) is rotatably connected to the base (1), the end face pressure plate (2) is used to press and fix the end face of the workpiece; Top surface pressure plate (3), the top surface pressure plate (3) is set on the base (1), the top surface pressure plate (3) is used to press and fix the top surface of the workpiece; A round pin (4) is set on the base (1) and is located on one side of the top pressure plate (3). The round pin (4) is used to position the holes on the workpiece. Diamond pin (5), which is set on the base (1) and is located on the side of the top pressure plate (3) away from the round pin (4).

2. The grinding and clamping device for a new energy vehicle power support workpiece according to claim 1, characterized in that, The end face pressure plate (2) is two and symmetrically arranged. The base (1) is fixedly connected to a first fixing block (6) that is symmetrically arranged. The end face pressure plate (2) is rotatably connected to the first fixing block (6).

3. The grinding and clamping device for a new energy vehicle power support workpiece according to claim 2, characterized in that, A first rotating rod (7) is fixedly connected to the side wall of the end face pressure plate (2). Both ends of the first rotating rod (7) are rotatably connected to a first rotating plate (8). The lower end of the first rotating plate (8) is rotatably connected to a first fixed block (6).

4. The grinding and clamping device for a new energy vehicle power support workpiece according to claim 3, characterized in that, A first hydraulic cylinder (9) is fixedly connected to the first fixed block (6), and a first connecting block (10) is fixedly connected to the upper end face of the first hydraulic cylinder (9). The first connecting block (10) is rotatably connected to the lower end face of the end face pressure plate (2).

5. The grinding and clamping device for a new energy vehicle power support workpiece according to claim 4, characterized in that, There are at least three top pressure plates (3), which are located between two end pressure plates (2) and are distributed in a triangular pattern.

6. The grinding and clamping device for a new energy vehicle power support workpiece according to claim 5, characterized in that, The lower end of the top pressure plate (3) is rotatably connected to a second connecting block (11), and the lower end of the second connecting block (11) is fixedly connected to a second hydraulic cylinder (12), which is fixedly connected to the base (1).

7. The grinding and clamping device for a new energy vehicle power support workpiece according to claim 6, characterized in that, A second fixed block (13) is fixedly connected to the second hydraulic cylinder (12), and a second rotating plate (14) is rotatably connected to the side wall of the second fixed block (13). A second rotating rod (15) is fixedly connected to the side wall of the top pressure plate (3), and the end of the second rotating rod (15) is rotatably connected to the upper end face of the second rotating plate (14).

8. The grinding and clamping device for a new energy vehicle power support workpiece according to claim 1, characterized in that, A positioning seat (16) is fixedly connected to the base (1). The positioning seat (16) is located between the two end face pressure plates (2) and the top face pressure plate (3). The round pin (4) and the diamond pin (5) are fixedly connected to the positioning seat (16) and located on both sides of the top face pressure plate (3).

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