Desoldering fracture test device

Abstract

The utility model relates to the technical field of automobile part testing devices, in particular to a desoldering fracture testing device, which comprises a table top mounted on a vibration generator and a vibration support arranged on the table top, and an instrument panel assembly is detachably and fixedly connected onto the vibration support. A plurality of supporting pieces and a plurality of fixing pieces are arranged on the vibration support, the supporting pieces are connected with the instrument board in a clamped mode, the fixing pieces are connected with the instrument board in a threaded mode, and the tubular beam structure is connected with the vibration support in a threaded mode. The instrument panel assembly is fixed on the vibration support, the vibration source of the vibration generator is used for transmitting vibration through the table top, the vibration condition of the instrument panel assembly in the automobile running process is simulated, the test device is simple in structure and low in cost, and the device can be reused due to the detachable connection mode.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile component testing devices, in particular to a desoldering fracture testing device. Background Art

[0002] During the actual driving of the car, the instrument panel will inevitably be subjected to vibrations of various frequencies. If the instrument panel and the pipe beam structure are not welded or connected firmly, or if they are loose or broken due to excessive stress during resonance, the instrument panel may make abnormal noises at the least, or even cause major failures such as instrument collisions. In order to verify the performance of the instrument panel assembly, verification tests are required to simulate actual usage.

[0003] Compared with the high cost, high cycle and hysteresis of actual road tests and proving ground tests using the whole vehicle, bench testing has become the main test verification method in automobile design and development due to its advantages such as good test repeatability and short test cycle. Bench testing refers to placing the test parts on a specially designed bench for testing to detect whether the performance of the test parts meets the specified standards or design expectations.

[0004] However, the prior art lacks a device suitable for performing a desoldering fracture test on an instrument panel assembly. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a desoldering fracture test device to solve the problem in the prior art that there is a lack of a device suitable for performing a desoldering fracture test on an instrument panel assembly.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a desoldering fracture test device, comprising a table mounted on a vibration generator and a vibration bracket arranged on the table, the vibration bracket is a frame structure formed by fixedly connecting metal profiles, and a dashboard assembly is detachably fixedly connected to the vibration bracket; the dashboard assembly comprises an instrument panel, a center console bracket, a pipe beam structure and a plurality of connecting members, the instrument panel is connected to the pipe beam structure through the connecting members, one end of the center console bracket is fixedly connected to the pipe beam structure, and the other end is detachably fixedly connected to the vibration bracket; a plurality of supporting plates and a plurality of fixing plates are arranged on the vibration bracket, the supporting plates are clamped to the instrument panel, the fixing plates are threadedly connected to the instrument panel, and the pipe beam structure is threadedly connected to the vibration bracket.

[0007] The beneficial effects of this solution are as follows: in this application, by arranging a support plate and a fixing plate on the vibration bracket, the support plate is clamped with the instrument panel, the fixing plate is threadedly connected to the instrument panel, and the tubular beam structure is threadedly connected to the vibration bracket; thereby, the instrument panel assembly is fixed, and then the vibration source of the vibration generator is used to transmit vibration through the table top to simulate the vibration condition of the instrument panel assembly during the driving of the car. The test device has a simple structure and low cost, and the detachable connection method allows the device to be reused.

[0008] Furthermore, it also includes a reinforcing plate and a stabilizing member, one end of the reinforcing plate is threadedly connected to the instrument panel, and the other end is welded to the pipe beam structure, and the stabilizing member is a sheet metal structure, and the two ends of the stabilizing member are respectively threadedly connected to the vibration bracket and the instrument panel, and the middle part of the stabilizing member is clamped with the pipe beam structure. By providing the reinforcing plate and the stabilizing member, the stability between the instrument panel, the pipe beam structure, and the vibration bracket during the test is enhanced, and the adverse effects caused by the resonance of the pipe beam structure and the instrument panel are reduced, which can improve the accuracy of the final test results.

[0009] Furthermore, the table top is evenly distributed with a plurality of threaded through holes, and the vibration bracket is threadedly connected to the table top, so as to facilitate adjustment of parameters such as the position and direction of the vibration bracket.

[0010] Furthermore, the vibration bracket is welded by a base, a plurality of side columns and a plurality of cross beams, and two ends of one of the cross beams are respectively threadedly connected with an extension beam. The vibration bracket has a simple structure and matches the instrument panel assembly.

[0011] Furthermore, the base is trapezoidal, the number of the side columns is four, and the number of the cross beams is four. The vibration bracket has a simple structure and matches the instrument panel assembly.

[0012] Furthermore, the vibration generator has a vibration frequency of 33 Hz and a vibration acceleration of 30 m / s 2 The test was conducted under the following conditions: 4 hours in the Z direction, 2 hours in the Y direction, and 2 hours in the X direction. A low-frequency vibration generator was used to simulate the vibration of the instrument panel assembly during the driving process of the car. The test was highly authentic, repeatable, and had a short test cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the instrument panel assembly of the utility model installed on the vibration bracket;

[0015] Figure 3 The utility model is a schematic diagram of the structure including a reinforcing plate and a stabilizing member. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The figure marks in the drawings of the specification include: table top 1, vibration bracket 2, base 21, side column 22, fixing plate 221, cross beam 23, support plate 231, extension beam 24, instrument panel assembly 3, instrument panel 31, center console bracket 32, pipe beam structure 33, connecting part 34, reinforcement plate 41, stabilizing part 42.

[0018] Example

[0019] The embodiment is basically as shown in the attached Figure 1 As shown, Figure 1 The desoldering fracture test device shown in the figure comprises a table 1 mounted on a vibration generator and a vibration bracket 2 arranged on the table 1. The vibration generator adopts an existing low-frequency vibration source signal generator. In this embodiment, the vibration generator has a vibration frequency of 33 Hz and a vibration acceleration of 30 m / s. 2 The test was carried out under the conditions of 4h in Z direction, 2h in Y direction and 2h in X direction.

[0020] The vibration bracket 2 is a frame structure formed by fixing and connecting metal profiles. In the present embodiment, aluminum alloy square tube profiles are used. The vibration bracket 2 is welded by a trapezoidal base 21, four side columns 22 and four cross beams 23. Both ends of one of the cross beams 23 are respectively threadedly connected with an extension beam 24. Two short beams are welded on one side of the long side of the base 21, and an L-shaped angle aluminum is welded on the upper side of the short beam.

[0021] like Figure 2 As shown, the vibration bracket 2 is threadedly connected to the instrument panel assembly 3 used in the test; specifically, the instrument panel assembly 3 includes an instrument panel 31, a center console bracket 32, a tube beam structure 33 and a plurality of connectors 34, the specific structure and the specific number of connectors are related to the actual selected instrument panel assembly 3, which can be understood as the prior art and will not be repeated here; one end of the connector 34 is threadedly connected to the instrument panel 31, and the other end is welded to the tube beam structure 33, one end of the center console bracket 32 ​​is welded to the tube beam structure 33, and the other end is threadedly connected to the angle aluminum on the short beam of the base 21; in this embodiment, five support plates 231 and two fixing plates 221 are provided on the vibration bracket 2, the support plates 231 are clamped with the instrument panel 31, the fixing plates 221 are threadedly connected to the instrument panel 31, and the tube beam structure 33 is threadedly connected to the vibration bracket 2.

[0022] In actual vehicles, the instrument panel assembly 3 is installed with more rubber pads and other shock-absorbing materials, so that the vibration resistance of the instrument panel assembly 3 is significantly higher than that in the test. Figure 3As shown, in this embodiment, the desoldering fracture test device also includes a reinforcing plate 41 and a stabilizing member 42. Both the reinforcing plate 41 and the stabilizing member 42 are sheet metal structures made of aluminum alloy. One end of the reinforcing plate 41 is threadedly connected to the instrument panel 31, and the other end is welded to the pipe beam structure 33. The two ends of the stabilizing member 42 are respectively threadedly connected to the vibration bracket 2 and the instrument panel 31, and the middle part of the stabilizing member 42 is clamped with the pipe beam structure 33. By providing the reinforcing plate 41 and the stabilizing member 42, the stability between the instrument panel 31, the pipe beam structure 33, and the vibration bracket 2 is enhanced during the test. The middle part of the stabilizing member 42 is clamped with the pipe beam structure 33, and it also plays a certain role in limiting the pipe beam structure 33, reducing the adverse effects of the resonance of the pipe beam structure 33 and the instrument panel 31, and can improve the accuracy of the final test results.

[0023] The specific implementation process is as follows:

[0024] Before starting the vibration test, the instrument panel assembly 3 is mounted on the vibration bracket 2, and the vibration generator is started. The vibration generator is set at a vibration frequency of 33 Hz and a vibration acceleration of 30 m / s. 2 The test was carried out under the conditions of 4h in Z direction, 2h in Y direction and 2h in X direction.

[0025] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A desoldering fracture test device, characterized in that: It includes a table top installed on a vibration generator and a vibration bracket arranged on the table top, the vibration bracket is a frame structure formed by fixed connection using metal profiles, and an instrument panel assembly is detachably fixedly connected to the vibration bracket; the instrument panel assembly includes an instrument panel, a center console bracket, a pipe beam structure and a plurality of connecting parts, the instrument panel is connected to the pipe beam structure through the connecting parts, one end of the center console bracket is fixedly connected to the pipe beam structure, and the other end is detachably fixedly connected to the vibration bracket; a plurality of supporting plates and a plurality of fixing plates are arranged on the vibration bracket, the supporting plates are clamped to the instrument panel, the fixing plates are threadedly connected to the instrument panel, and the pipe beam structure is threadedly connected to the vibration bracket.

2. A desoldering fracture test device according to claim 1, characterized in that: It also includes a reinforcing plate and a stabilizing member, one end of the reinforcing plate is threadedly connected to the instrument panel, and the other end is welded to the tubular beam structure. The stabilizing member is a sheet metal structure, and the two ends of the stabilizing member are respectively threadedly connected to the vibration bracket and the instrument panel, and the middle part of the stabilizing member is clamped with the tubular beam structure.

3. A desoldering fracture test device according to claim 2, characterized in that: A plurality of threaded through holes are evenly distributed on the table top, and the vibration bracket is threadedly connected to the table top.

4. A desoldering fracture test device according to claim 3, characterized in that: The vibration bracket is welded by a base, a plurality of side columns and a plurality of cross beams, and two ends of one of the cross beams are respectively threadedly connected with an extension beam.

5. A desoldering fracture test device according to claim 4, characterized in that: The base is trapezoidal, the number of the side columns is four, and the number of the cross beams is four.

6. A desoldering fracture test device according to any one of claims 1 to 5, characterized in that: The vibration generator has a vibration frequency of 33Hz and a vibration acceleration of 30m / s 2 The test was carried out under the conditions of 4h in Z direction, 2h in Y direction and 2h in X direction.

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