New energy vehicle type electric drive axle support tooling

Abstract

The utility model discloses a new energy vehicle type electric drive axle support frock belongs to new energy automobile production auxiliary equipment field. It aims at solving the problem of small contact area of existing electric drive axle support structure and electric drive axle, easy to slip, not firm with the dolly connection and difficult to recycle. The frock includes the bottom plate made of steel sheet, and the side plate is integrally formed on both sides of the bottom plate. The surface of the side plate is provided with a support, which includes a horizontal fixed cross plate and a profiled polyurethane pad. The pad is fixed with the cross plate and the side plate through the sinking type first fixing bolt. The bottom of the side plate is provided with a fixing piece, which includes a vertical welding support plate and a bent fixing plate. The fixing plate is connected with the dolly through the second fixing bolt with locking nut. A triangular plate is fixed between the support plate and the side plate. The opposite side of the side plate is welded with a baffle. The frock is used for supporting and circulating the new energy vehicle type electric drive axle on the chassis line and the rear axle line body dolly, and is safe to use.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for new energy vehicle production, and in particular to a support fixture for electric drive axles of new energy vehicle models. Background Technology

[0002] Currently, in new energy vehicle models, the rear axle and motor are integrated, forming a centrally integrated electric drive axle. The electric drive axle in this type of vehicle differs from the axle support structure in traditional fuel vehicles; the axle housing is not located at the center of the axle body. This incompatibility with conventional chassis chain line V-shaped support trolleys and new AGV line AGV follow-up trolleys leads to line contact between the electric drive axle and the line trolley after the chassis frame overturns, posing a risk of rollover and slippage, severely impacting safety and online assembly quality. Therefore, a new type of electric drive axle support fixture for new energy vehicle models is proposed. Utility Model Content

[0003] The purpose of this utility model is to solve the shortcomings of the existing technology, such as the bridge package not being located at the center of the bridge body and not being compatible with conventional chassis plate chain V-shaped support trolleys and new AGV line AGV follow-up trolleys, and to propose a new energy vehicle electric drive bridge support tooling.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A new energy vehicle electric drive axle support fixture includes a base plate, both sides of which are integrally formed with upwardly bent side plates. Support members are provided on the surface of each side plate for supporting the electric drive axle, and fixing members are provided at the bottom of each side plate for connecting a trolley.

[0006] The support includes a horizontal plate, which is horizontally arranged and fixed to the side plate. A pad is provided on the surface of the horizontal plate, and the bottom of the pad contacts the horizontal plate and the side plate. Two sets of countersunk holes are provided on the surface of the pad, and a first fixing bolt is provided in each countersunk hole. The two sets of first fixing bolts pass through the horizontal plate and the side plate respectively and are threaded with fixing nuts.

[0007] The fastener includes a support plate, which is welded to the bottom of the side plate and is perpendicular to the side plate. A bent fixing plate is fixedly connected to the bottom of the support plate. The bottom of the fixing plate is vertically arranged and a second fixing bolt is threaded through it on one side.

[0008] In one possible design, the pad is made of molded polyurethane.

[0009] In one possible design, baffles are welded to opposite sides of the side plates, and the baffles are fixed to the adjacent cross plates.

[0010] In one possible design, a triangular plate is fixedly connected between the bottom of the support plate and the side plate.

[0011] In one possible design, the second fixing bolt is threaded with a locking nut around its circumference.

[0012] In one possible design, the base plate is a steel plate.

[0013] In this application, the tooling is fixed to the chassis line and the rear axle line trolley by the second fixing bolt. This not only facilitates disassembly but also prevents the electric drive axle support tooling from falling into the pit during the double-plate chain circulation. This allows the tooling to move with the line and be used repeatedly, improving its flexibility. The electric drive axle is suspended on a pad, which is made of shaped polyurethane material and fixed to the integral base plate by a recessed first fixing bolt. This allows the electric drive axle and the support tooling to form a surface contact, increasing the contact area and preventing the risk of slippage when the electric drive axle directly contacts the line trolley.

[0014] Beneficial effects: In this utility model, the electric drive axle support fixture for new energy vehicle models uses a combination of a conforming polyurethane pad and a recessed first fixing bolt. The conforming polyurethane pad can fit the shape of the electric drive axle and make close contact with the horizontal plate and side plate. The first fixing bolt firmly fixes the pad, horizontal plate, and side plate, so that the electric drive axle and the support fixture form a surface contact, increasing the contact area and avoiding the risk of slippage when the electric drive axle directly contacts the line trolley, thus ensuring the stability of the electric drive axle during the support process.

[0015] In this utility model, the electric drive axle support fixture for new energy vehicle models uses a combination of a second fixing bolt, a locking nut, and a triangular plate. The second fixing bolt connects the fixture to the trolley, the locking nut prevents the second fixing bolt from loosening due to vibration, and the triangular plate enhances the connection strength between the support plate and the side plate. This not only prevents the fixture from falling into the pit during the double-plate chain's pit circulation, but also ensures the overall structural stability of the fixture, enabling the fixture to be used cyclically with the production line and meeting the turnover requirements of the electric drive axle. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a new energy vehicle electric drive axle support fixture proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of a new energy vehicle electric drive axle support fixture proposed in this utility model;

[0018] Figure 3 This is a side view structural schematic diagram of an electric drive axle support fixture for a new energy vehicle proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the usage state of the electric drive axle support tooling for a new energy vehicle proposed in this utility model.

[0020] In the diagram: 1. Base plate; 2. Side plate; 3. Horizontal plate; 4. Pad block; 5. Countersunk hole; 6. First fixing bolt; 7. Baffle plate; 8. Support plate; 9. Fixing plate; 10. Second fixing bolt; 11. Locking nut; 12. Triangular plate; 13. Chassis line middle and rear axle line trolley; 14. Electric drive axle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In one embodiment: Refer to Figures 1-4 A new energy vehicle electric drive axle support fixture includes: a base plate 1, which is made of steel plate and has good strength and load-bearing capacity, capable of supporting the weight of the electric drive axle 14 and preventing deformation during use. The base plate 1 has integrally formed upward-bent side plates 2 on both sides, with the bending angle set according to the support height requirements of the electric drive axle 14, ensuring that the side plates 2 can provide a stable installation foundation for subsequent support components. Simultaneously, the side plates 2 on both sides are symmetrically arranged to ensure balanced stress distribution throughout the fixture.

[0023] The surface of each side plate 2 is fitted with support members for supporting the electric drive bridge 14. The horizontal plates 3 within these support members are arranged horizontally and are fixed to the side plates 2 by welding. The welds must be full and free of defects to ensure that the horizontal plate 3 does not shift relative to the side plate 2 when bearing the weight of the electric drive bridge 14. A pad 4 is fitted onto the surface of the horizontal plate 3. The pad 4 is made of conformal polyurethane material, possessing a certain degree of elasticity, which acts as a buffer when the electric drive bridge 14 is placed. It is also designed to conform to the shape of the electric drive bridge 14, allowing the bottom of the pad 4 to make close contact with both the horizontal plate 3 and the side plate 2, further enhancing the stability of the support. The surface of the pad 4 has two sets of countersunk holes 5. The diameter of the countersunk holes 5 matches the diameter of the first fixing bolt 6. The first fixing bolt 6 is placed in the countersunk holes 5, and the two sets of first fixing bolts 6 pass through the horizontal plate 3 and the side plate 2 respectively. After passing through, a fixing nut is threaded on the outside of the side plate 2. By tightening the fixing nut, the pad 4, the horizontal plate 3 and the side plate 2 can be fixed together. The recessed installation method can prevent the head of the first fixing bolt 6 from protruding from the surface of the pad 4, and does not affect the close placement of the electric drive bridge 14 and the pad 4. At the same time, it allows the electric drive bridge 14 to form a surface contact with the support fixture, increasing the contact area and preventing the risk of slippage when the electric drive bridge 14 directly contacts the line trolley.

[0024] In another embodiment: Reference Figures 1-4 A tooling for supporting the electric drive axle of a new energy vehicle.

[0025] A baffle 7 is welded to each side opposite to the side plate 2. The height of the baffle 7 is the same as the height of the horizontal plate 3. One side of the baffle 7 is welded to the side plate 2, and the other side is welded to the end of the adjacent horizontal plate 3. The baffle 7 can limit and reinforce the horizontal plate 3 from the end, preventing the end of the horizontal plate 3 from sagging or deforming when it is used for a long time or bears a large weight, and further enhancing the overall structural stability of the support.

[0026] The bottom of side plate 2 is also equipped with a fastener for connecting the trolley. A support plate 8 is welded to the bottom of side plate 2, and the support plate 8 is perpendicular to side plate 2. A triangular plate 12 is also fixedly connected between the support plate 8 and the bottom of side plate 2. The two right-angled sides of the triangular plate 12 are welded to the side of support plate 8 and the bottom of side plate 2, respectively. Utilizing the stability characteristics of a triangle, the connection strength between support plate 8 and side plate 2 is enhanced, preventing support plate 8 from tilting or breaking when bearing the weight of the tooling and electric drive bridge 14. A bent fixing plate 9 is fixedly connected to the bottom of support plate 8, with its bottom in a vertical position for easy fitting with the connection part of the trolley. A threaded hole is provided on one side of the fixing plate 9. The second fixing bolt 10 is threaded into this threaded hole and passes through the fixing plate 9. In use, the tooling is fixed to the chassis line and the rear axle line trolley 13 by the second fixing bolt 10. In specific operation, simply place the fixing plate 9 against the corresponding connection position of the trolley and tighten the second fixing bolt 10 to achieve fixation. This connection method is convenient for disassembly and prevents the electric drive axle 14 supporting the tooling from falling into the pit when the double-plate chain enters the pit for circulation, so that the tooling can follow the moving line and be used repeatedly. Locking nuts 11 are also threaded on the circumference of the second fixing bolt 10. The locking nuts 11 are located on both sides of the fixing plate 9. After tightening the second fixing bolt 10, tighten the locking nuts 11 on both sides to prevent the second fixing bolt 10 from loosening due to vibration during the movement of the tooling, and further ensure the stability of the connection between the tooling and the trolley.

[0027] The support fixture can simultaneously move and circulate with the chassis assembly line (double-plate chain pit circulation and AGV line circulation). Through the support fixture, the electric drive axle 14 is optimized from line contact to surface contact, which greatly improves the stability and safety of chassis assembly and enables mass assembly of new energy vehicles.

[0028] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tooling for supporting an electric drive axle in a new energy vehicle, characterized in that, Includes a base plate (1), both sides of the base plate (1) are integrally formed with upwardly bent side plates (2), the surface of the side plates (2) is provided with support members for supporting the electric drive bridge, and the bottom of the side plates (2) is provided with fixing members for connecting the trolley. The support includes a horizontal plate (3), which is horizontally arranged and fixed to the side plate (2). A pad (4) is provided on the surface of the horizontal plate (3). The bottom of the pad (4) contacts the horizontal plate (3) and the side plate (2). Two sets of countersunk holes (5) are provided on the surface of the pad (4). A first fixing bolt (6) is provided in each of the countersunk holes (5). The two sets of first fixing bolts (6) pass through the horizontal plate (3) and the side plate (2) respectively and are threaded with fixing nuts. The fastener includes a support plate (8), which is welded to the bottom of the side plate (2) and is perpendicular to the side plate (2). A bent fixing plate (9) is fixedly connected to the bottom of the support plate (8). The bottom of the fixing plate (9) is vertically arranged and a second fixing bolt (10) is threaded through it on one side.

2. The electric drive axle support fixture for a new energy vehicle according to claim 1, characterized in that, The pad (4) is made of polyurethane.

3. The electric drive axle support fixture for a new energy vehicle according to claim 1, characterized in that, Each of the side plates (2) has a baffle (7) welded to the opposite side, and the baffle (7) is fixed to the adjacent horizontal plate (3).

4. The electric drive axle support fixture for a new energy vehicle according to claim 1, characterized in that, A triangular plate (12) is fixedly connected between the bottom of the support plate (8) and the side plate (2).

5. The electric drive axle support fixture for a new energy vehicle according to claim 1, characterized in that, The second fixing bolt (10) is threaded with a locking nut (11) around its circumference.

6. The electric drive axle support fixture for a new energy vehicle according to claim 1, characterized in that, The base plate (1) is a steel plate.

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