A kind of tray tool for electric drive axle off-line test

Abstract

The utility model discloses a kind of tray tool for electric drive bridge off-line test, including gantry, main tray is set on the gantry, the both ends of main tray are respectively provided with the support tool for carrying electric drive bridge, the outer side of support tool is respectively provided with the guide tool for electric drive bridge to be right, the outer side of guide tool is provided with universal joint, the both ends flange of electric drive bridge are connected with universal joint, after electric drive bridge is right by guide tool, the both ends load output flange of electric drive bridge are connected with universal joint, the load shafting butt joint of test gantry is facilitated, the problem that the center consistency of both sides load output flange of electric drive bridge itself is not good is solved, and the butt joint success rate is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures for electric vehicle parts, and in particular to a tray fixture for testing electric drive axles after they are installed. Background Technology

[0002] The electric drive axle is one of the core components of an electric vehicle (EV), responsible for converting electrical energy into mechanical energy and transmitting it to the wheels. Its design directly affects the vehicle's performance, efficiency, and spatial layout. The electric drive axle integrates components such as a motor, reducer, differential, and controller. After the electric drive axle is manufactured, it needs to undergo various tests. Due to the poor center alignment of the load output flanges on both sides of the electric drive axle itself, it is easy to encounter situations where the load shaft system cannot be connected or the connection success rate is low during the test bench load shaft system docking process, which affects the offline testing cycle. Therefore, this application proposes a solution to this problem. Summary of the Invention

[0003] Purpose of the utility model: The purpose of this utility model is to provide a tray fixture for testing electric drive bridges, which can solve the problem of poor docking between the output shaft of the electric drive bridge and the testing fixture, and can be compatible with various models of electric drive bridges.

[0004] Technical solution: The present invention provides a tray fixture for testing an electric drive bridge, comprising a frame, characterized in that: a main tray is provided on the frame, a support fixture for supporting the electric drive bridge is disposed at the center of the main tray, guide fixtures for aligning the electric drive bridge are respectively provided on the outer side of the support fixture, universal joints are provided on the outer side of the guide fixtures, and the flanges at both ends of the electric drive bridge are connected to the universal joints.

[0005] After placing the electric drive bridge on the support fixture, the electric drive bridge is aligned using the guide fixture. The flanges at both ends of the electric drive bridge are then connected to the universal joints to facilitate the docking of the output shaft of the electric drive bridge with the test fixture.

[0006] Preferably, the supporting fixture includes a base plate, a vertical plate, and a support plate. The base plate is slidably mounted on the main pallet, the vertical plate is fixedly mounted on the base plate, and the support plate is fixedly mounted on the top of the vertical plate.

[0007] The support fixture is used to support the electric drive bridge, and the base plate sliding on the main tray can accommodate more different models of electric drive bridges, thus improving compatibility.

[0008] Preferably, a support platform is provided on the base plate, the support platform being at the same height as the support plate, and a clamping cylinder is provided on the support platform to clamp the electric drive bridge onto the support plate.

[0009] The clamping cylinder positions the electric drive bridge on the support fixture, ensuring that the electric drive bridge can be stably placed on the support fixture during testing.

[0010] Preferably, the guide fixture is an arc-shaped support, and the arc groove inside the arc-shaped support guides the universal joint and the flanges at both ends of the electric drive bridge.

[0011] The universal joint is mounted on the main tray via a bearing housing and a guide fixture. One side of the universal joint is connected to the electric drive bridge on the guide fixture, and the other side is connected to the spindle of the bearing housing.

[0012] The universal joint design makes it easier for both ends of the electric drive bridge to connect with test fixtures.

[0013] Preferably, the side of the bearing housing where the spindle is not connected to the electric drive bridge has an involute spline structure.

[0014] Preferably, the system also includes a high-voltage connection plate and a low-voltage connection plate, which are respectively disposed on both sides of the platform and connected to the high-voltage and low-voltage circuits of the electric drive bridge.

[0015] Beneficial effects: Compared with the prior art, this utility model has the following advantages:

[0016] (1) After the electric drive bridge is aligned by the guide fixture, the load output flanges at both ends of the electric drive bridge are connected to the universal joints, which facilitates the docking of the load shaft system of the test bench, solves the problem of poor center consistency of the load output flanges on both sides of the electric drive bridge, and improves the docking success rate.

[0017] (2) By sliding the base plate of the support fixture on the main tray, this device can be adapted to more different models of electric drive bridges, thus improving the overall adaptability. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 This is a front view of the present invention.

[0020] Figure 3 This is a top view of the present invention. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0022] See appendix Figures 1-3The figure shows a tray fixture for testing an electric drive bridge according to this utility model. It includes a frame, on which a main tray 1 is set. A support fixture 2 for supporting the electric drive bridge is positioned opposite the center of the main tray 1. Guide fixtures 3 for aligning the electric drive bridge are respectively set on the outer side of the support fixture 2. Universal joints 4 are set on the outer side of the guide fixtures 3. The flanges at both ends of the electric drive bridge are connected to the universal joints 4. After the electric drive bridge is placed on the support fixture 2, it is aligned by the guide fixtures 3 and the flanges at both ends of the electric drive bridge are connected to the universal joints 4, which facilitates the docking of the output shaft of the electric drive bridge with the testing fixture.

[0023] In this embodiment, the support fixture 2 includes a base plate 21, an upright plate 22, and a support plate 23. The base plate 21 is slidably mounted on the main tray 1, the upright plate 22 is fixedly mounted on the base plate 21, and the support plate 23 is fixedly mounted on the top of the upright plate 22. The support fixture 2 is used to support the electric drive bridge. At the same time, the base plate 21 is slidably mounted on the main tray 1, which can adapt to more different models of electric drive bridges and has better compatibility.

[0024] In this embodiment, a support platform 24 is provided on the base plate 21. The support platform 24 is at the same height as the support plate 23. A clamping cylinder 25 is provided on the support platform 24. The clamping cylinder 25 clamps the electric drive bridge onto the support plate 23 to ensure that the electric drive bridge can be stably placed on the support fixture 2 during the test.

[0025] In this embodiment, the guide fixture 3 is an arc-shaped support, and the arc groove 31 inside the arc support guides the universal joint 4 and the flanges at both ends of the electric drive bridge.

[0026] In this embodiment, the universal joint 4 is mounted on the main tray 1 via the bearing housing 5 and the guide fixture 3. One side of the universal joint 4 is connected to the electric drive bridge on the guide fixture 3, and the other side is connected to the spindle 51 of the bearing housing 5. The universal joint 4 makes it easier for both ends of the electric drive bridge to dock with the test fixture.

[0027] In this embodiment, the side of the bearing housing 5 where the spindle 51 is not connected to the electric drive bridge has an involute spline structure.

[0028] In this embodiment, a high-voltage connection plate 6 and a low-voltage connection plate 7 are also included. The high-voltage connection plate 6 and the low-voltage connection plate 7 are respectively disposed on both sides of the platform and connected to the high-voltage and low-voltage circuits of the electric drive bridge.

Claims

1. A tray fixture for testing the offline operation of an electric drive bridge, comprising a frame, characterized in that: The platform is provided with a main tray (1), and a support fixture (2) for supporting the electric drive bridge is positioned opposite the center of the main tray (1). A guide fixture (3) for aligning the electric drive bridge is provided on the outer side of the support fixture (2). A universal joint (4) is provided on the guide fixture (3). The flanges at both ends of the electric drive bridge are connected to the universal joint (4).

2. The tray fixture for testing the offline operation of an electric drive bridge according to claim 1, characterized in that: The supporting fixture (2) includes a base plate (21), a vertical plate (22) and a support plate (23). The base plate (21) is slidably mounted on the main pallet (1), the vertical plate (22) is fixedly mounted on the base plate (21), and the support plate (23) is fixedly mounted on the top of the vertical plate (22).

3. The tray fixture for testing the offline operation of an electric drive bridge according to claim 2, characterized in that: A support platform (24) is provided on the base plate (21). The support platform (24) is at the same height as the support plate (23). A clamping cylinder (25) is provided on the support platform (24). The clamping cylinder (25) clamps the electric drive bridge onto the support plate (23).

4. The tray fixture for testing the offline operation of an electric drive bridge according to claim 1, characterized in that: The guide fixture (3) is an arc-shaped support, and the arc groove (31) inside the arc-shaped support guides the universal joint (4) and the flanges at both ends of the electric drive bridge.

5. The tray fixture for testing the offline operation of an electric drive bridge according to claim 1, characterized in that: The universal joint (4) is mounted on the main tray (1) via the bearing seat (5) and the guide fixture (3). One side of the universal joint (4) is connected to the electric drive bridge on the guide fixture (3), and the other side is connected to the spindle (51) of the bearing seat (5).

6. The tray fixture for testing the offline operation of an electric drive bridge according to claim 5, characterized in that: The side of the bearing housing (5) where the spindle (51) is not connected to the electric drive bridge has an involute spline structure.

7. The tray fixture for testing the offline operation of an electric drive bridge according to claim 1, characterized in that: It also includes a high-voltage connection plate (6) and a low-voltage connection plate (7), which are respectively installed on both sides of the platform and connected to the high-voltage and low-voltage circuits of the electric drive bridge.

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