Electrically adjustable steering column testing and demonstration tool

Abstract

The utility model relates to mechanical technical field, concretely is a kind of electrically controlled steering pipe column test and show frock, including base, rubber shock absorber suction cup, handle, installation pillar, four corners of base are respectively welded fixed with the aluminium connecting piece of rubber shock absorber suction cup, every two rubber shock absorber suction cups between installation have a handle, and handle is located in the notch of base side, the surface of base is provided with several installation positioning holes, the distance between two installation positioning holes is 80mm~350mm, the bottom of installation pillar is inserted into corresponding installation positioning hole, the length of installation pillar is 20mm~150mm, the included angle between installation pillar and base is 45 °~135 °.The utility model compares with prior art, handle cooperates rubber shock absorber suction cup, both isolate the influence of base vibration to pipe column adjustment NVH, also convenient to carry turnover, adopt the installation positioning hole of reservation and cooperate installation pillar, satisfy the use of different electrically controlled pipe column product.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically to a testing and demonstration fixture for an electronically controlled steering column. Background Technology

[0002] The electric power steering column can control the axial and radial adjustment of the motor via an ECU control switch. Customers have very high NVH requirements during the axial and radial adjustment process of the ESC column, and abnormal noise is not allowed. Therefore, when conducting bench NVH tests or demonstrating the NVH performance of the ESC column adjustment to customers, it is necessary to minimize the influence of other surrounding factors.

[0003] When conventional tooling is used for NVH testing or demonstration to customers, surrounding components may interfere with the ESC column, ultimately affecting the NVH test results.

[0004] In addition, the interface differences between different ESC columns typically require the design of more assembly and positioning fixtures for connector adaptation, which is costly and time-consuming.

[0005] Therefore, it is necessary to design a test and demonstration fixture for the electronically controlled steering column to reduce noise interference from the surrounding environment during axial adjustment and adjustment of the electronically controlled steering column; at the same time, to improve the adaptability of the fixture in a low-cost manner to meet the needs of different electronically controlled steering column products. Summary of the Invention

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a testing and demonstration fixture for an electronically adjustable steering column, which reduces noise interference from the surrounding environment during axial adjustment and adjustment of the electronically adjustable steering column; at the same time, it improves the adaptability of the fixture in a low-cost manner to meet the needs of different electronically adjustable steering column products.

[0007] To achieve the above objectives, this utility model provides a testing and demonstration fixture for an electronically adjustable steering column, comprising a base, rubber shock-absorbing suction cups, handles, and mounting supports. The four corners of the base are welded and fixed to the aluminum connectors of the rubber shock-absorbing suction cups. A handle is installed between every two rubber shock-absorbing suction cups, and the handle is located in a notch on the side of the base. The surface of the base is provided with several mounting positioning holes, the distance between two mounting positioning holes being 80mm~350mm. The bottom of the mounting support is inserted into the corresponding mounting positioning hole, the length of the mounting support is 20mm~150mm, and the included angle between the mounting support and the base is 45°~135°.

[0008] The rubber shock-absorbing suction cup is equipped with an exhaust handle.

[0009] The number of mounting and positioning holes is 4 to 10.

[0010] The base has three horizontally arranged weight-reduction grooves on its surface.

[0011] The mounting support and the mounting positioning hole are fixed together by bolts.

[0012] Compared with existing technologies, this invention features a handle combined with a rubber shock-absorbing suction cup. This design isolates the impact of base vibration on the NVH adjustment of the ESC column, ensuring that the ESC column can minimize interference from surrounding parts during testing and demonstration. It also facilitates handling and transport of tooling. Pre-drilled mounting holes accommodate different mounting supports, meeting the needs of various ESC column products. This invention boasts advantages such as simple structure, high adaptability, and low cost. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the usage state of this utility model.

[0015] Figure 3 This is a schematic diagram of the handle and rubber shock-absorbing suction cup of this utility model.

[0016] Figure 4 This is a structural schematic diagram of the base of this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of the base of this utility model after the support column is assembled.

[0018] Figure 6 This is a schematic diagram of the structure of the base and the rubber shock-absorbing suction cup of this utility model. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] See Figure 1 , Figure 3 and Figure 6 This utility model is a testing and demonstration fixture for an electronically adjustable steering column, including a base, rubber shock-absorbing suction cups, handles, and mounting supports. The four corners of the base 1 are welded and fixed to the aluminum connectors of the rubber shock-absorbing suction cups 2. A handle 3 is installed between every two rubber shock-absorbing suction cups 2, and the handle 3 is located within a notch 11 on the side of the base 1. (See attached image.) Figure 4 , Figure 5 The surface of the base 1 is provided with several mounting positioning holes 12. The distance between two mounting positioning holes 12 is 80mm~350mm. The bottom of the mounting column 5 is inserted into the corresponding mounting positioning hole 12. The length of the mounting column 5 is 20mm~150mm. The included angle between the mounting column 5 and the base 1 is 45°~135° to adapt to the mounting point position of different electric control columns.

[0021] The angular tolerance between the support column 5 and the base 1 is ±1°, and the length tolerance of the support column 5 is ±0.2mm.

[0022] See Figure 2 For different ESC column installation point locations, the mounting support 5 and ESC column are fixed by mounting positioning holes 12 at different positions and mounting support columns 5 of different lengths and angles, so as to meet the interface matching of different ESC column products. This allows the base 1 to be adapted to the installation interface requirements of different products, reducing the cost of redeveloping the base 1.

[0023] A M10 internal threaded hole is drilled at the bottom of the mounting column 5, and it is connected to the mounting positioning hole 12 of the base 1 by an M10 bolt. The diameter of the mounting positioning hole 12 is φ20±0.2mm, and the tolerance between the mounting positioning holes 12 is ±0.2mm.

[0024] The rubber shock-absorbing suction cup 2 is equipped with an exhaust handle 4. Pressing down the exhaust handle 4 can expel the air from the rubber shock-absorbing suction cup 2, achieving vacuum fixation and ensuring the stability of the base 1.

[0025] In this embodiment, there are 4 mounting positioning holes 12. The number of mounting positioning holes 12 is preferably 4 to 10, and considering symmetry, the number is generally an even number.

[0026] The base 1 is made of aluminum. To further reduce the weight of the tooling, three weight-reducing grooves 13 are horizontally arranged on the surface of the base 1.

[0027] This invention features a handle combined with a rubber shock-absorbing suction cup, which isolates the impact of base vibration on the NVH adjustment of the power control column and facilitates handling and relocation of the tooling. Pre-drilled mounting holes allow for compatibility with different mounting supports, meeting the needs of various ESC power control column products. This invention boasts advantages such as simple structure, high adaptability, and low cost.

Claims

1. A testing and demonstration fixture for an electronically adjustable steering column, comprising a base, a rubber shock-absorbing suction cup, a handle, and a mounting support, characterized in that: The four corners of the base (1) are welded and fixed to the aluminum connectors of the rubber shock-absorbing suction cups (2). A handle (3) is installed between every two rubber shock-absorbing suction cups (2), and the handle (3) is located in the notch (11) on the side of the base (1). The surface of the base (1) is provided with several mounting positioning holes (12). The distance between two mounting positioning holes (12) is 80mm~350mm. The bottom of the mounting support (5) is inserted into the corresponding mounting positioning hole (12). The length of the mounting support (5) is 20mm~150mm. The angle between the mounting support (5) and the base (1) is 45°~135°.

2. The testing and demonstration fixture for an electronically controlled steering column according to claim 1, characterized in that: The rubber shock-absorbing suction cup (2) is equipped with an exhaust handle (4).

3. The testing and demonstration fixture for an electronically controlled steering column according to claim 1, characterized in that: The number of mounting and positioning holes (12) is 4 to 10.

4. The testing and demonstration fixture for an electronically controlled steering column according to claim 1, characterized in that: The base (1) has three weight-reducing grooves (13) arranged horizontally on its surface.

5. The testing and demonstration fixture for an electronically controlled steering column according to claim 1, characterized in that: The mounting support (5) is fixed to the mounting positioning hole (12) by bolts.

Images