A device and method for testing automotive dashboards

Abstract

This disclosure provides an instrument panel testing device and method for automobiles, relating to automobile structural testing. The device includes an instrument panel cover fixture whose outer contour matches the instrument panel cover. The instrument panel cover fixture is provided with a spring-loaded push-pull structure that matches a positioning hole and a first locking slot hole on the instrument panel. The spring-loaded push-pull structure is used to lock and fix the instrument panel cover fixture to the instrument panel. This disclosure enables the testing of the position of the instrument panel cover when assembled with the instrument panel without damaging the product structure.

Description

Technical Field

[0001] This disclosure relates to the field of automotive structure testing, specifically to an automotive dashboard testing device and method. Background Technology

[0002] During the vehicle assembly process, the instrument panel back cover is connected to the instrument panel through its own positioning and snap-fit ​​structure. In related technologies, the inspection of the area where the instrument panel is assembled with the instrument panel back cover is generally carried out by inspecting the instrument panel cover itself. This method of inspection by using a physical object is inconvenient to disassemble. On the other hand, it is easy to damage the instrument panel snap-fit ​​groove and the cover snap-fit ​​structure during disassembly and assembly, affecting the accuracy of the instrument panel and damaging the cover itself. Furthermore, since it is difficult to guarantee the consistency between different products, using non-standard objects for inspection can easily affect the assembly accuracy and make subsequent rectification difficult. Summary of the Invention

[0003] To address the problems of damage and low accuracy associated with existing technologies that use physical instrument panel covers for testing, this disclosure provides an automotive instrument panel testing device and method. The technical solution is as follows:

[0004] On one hand, an automotive dashboard testing device is provided, including a dashboard cover plate fixture, the outer contour of which matches the dashboard cover plate, and the dashboard cover plate fixture is provided with a spring push structure that matches the positioning hole and the first snap-fit ​​groove hole on the dashboard, the spring push structure being used to lock and fix the dashboard cover plate fixture to the dashboard.

[0005] In one possible implementation, the spring pusher structure includes a handle, a spring, a pusher, a fixing block, a limiting block, and a locking block; the handle is fixedly disposed at the first end of the pusher, and the locking block is fixedly disposed at the second end of the pusher for engaging with a positioning hole or a snap-fit ​​slot; the fixing block is sleeved on the outside of the pusher for fixed connection with an instrument panel cover gauge; the limiting block is sleeved on the outside of the pusher and fixedly connected to the fixing block, and the limiting block has a first limiting groove and a second limiting groove opened along the length direction of the pusher, the first limiting groove and the second limiting groove communicating on the side away from the handle; the pusher is also provided with a locking block for engaging within the first limiting groove or the second limiting groove; the spring is sleeved on the outside of the pusher and disposed between the handle and the limiting block.

[0006] In one possible implementation, the locking block extends through the pusher and is perpendicular to the pusher.

[0007] In one possible implementation, the included angle between the first limiting groove and the second limiting groove is 90 degrees.

[0008] In one possible implementation, the outer surface of the instrument panel cover gauge is also provided with a handle.

[0009] In one possible implementation, an instrument panel simulation block is also included, the outer contour of which matches the instrument panel; the instrument panel simulation block is provided with a second snap-fit ​​slot for engaging with the instrument panel cover plate, and the spring push-pull structure on the instrument panel cover plate fixture matches the position of the second snap-fit ​​slot.

[0010] In one possible implementation, a go / no-go gauge is also included, which has a go end of a first predetermined size and a no-go end of a second predetermined size, for detecting the gap between the instrument panel cover gauge and the instrument panel after the instrument panel cover gauge is locked and fixed to the instrument panel.

[0011] In one possible implementation, a dial indicator is also included, which is used to detect the surface difference between the instrument panel cover fixture and the instrument panel after the instrument panel cover fixture is locked and fixed to the instrument panel.

[0012] Secondly, based on the automotive dashboard testing device provided in the first aspect above, a method for testing an automotive dashboard is provided, comprising:

[0013] Install the instrument panel simulation block into the instrument panel;

[0014] Insert the spring push-out structures on the instrument panel cover plate fixture into the corresponding positioning holes and first snap-fit ​​slot holes on the instrument panel, as well as the corresponding second snap-fit ​​slot holes on the instrument panel simulation block, and make the mating surfaces between the instrument panel cover plate fixture, the instrument panel simulation block, and the instrument panel fit together.

[0015] Lock and fix each spring push structure to the corresponding positioning hole and snap-fit ​​slot hole;

[0016] The instrument panel simulation block and the instrument panel are tested using testing equipment.

[0017] In one possible implementation, the use of a detection device to detect the interface between the instrument panel simulation block and the instrument panel includes:

[0018] The gap between the instrument panel cover and the instrument panel is checked using a go / no-go gauge.

[0019] The surface difference between the instrument panel cover gauge and the instrument panel is measured using a dial indicator.

[0020] The beneficial effects of the technical solution provided by this disclosure are as follows: This disclosure provides an instrument panel testing device and method. The instrument panel cover plate fixture simulates the outline shape of the instrument panel cover plate, and the instrument panel cover plate fixture is locked to the instrument panel by a spring push-pull structure. The testing tool can then be used to test the area of ​​the instrument panel where the instrument panel cover plate is assembled. After the test is completed, the instrument panel cover plate fixture can be removed. The operation is simple and the disassembly and assembly are convenient. Compared with the solution of testing by assembling the actual instrument panel cover plate, the disassembly and assembly process is based on the spring push-pull structure, which will not damage the product, and the product consistency is easy to control.

[0021] Advantages of this disclosure in some respects will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of an automotive dashboard detection device and a dashboard assembly state provided in an embodiment of this disclosure;

[0024] Figure 2 yes Figure 1 A schematic diagram of the structure after removing the instrument panel cover fixture;

[0025] Figure 3 This is a schematic diagram of the inner side of the instrument panel cover inspection fixture;

[0026] Figure 4 This is a schematic diagram of the outer side of the instrument panel cover inspection fixture;

[0027] Figure 5 yes Figure 4 Sectional view of AA;

[0028] Figure 6 This is a schematic diagram of the overall structure of the spring pusher mechanism;

[0029] Figure 7 This is a schematic diagram showing the locking block in the locked position with the snap-fit ​​slot.

[0030] Figure 8 This is a schematic diagram of the structure of the instrument panel simulation block;

[0031] Figure 9 This is a schematic diagram of surface difference and gap detection;

[0032] Figure 10 yes Figure 9 BB section view.

[0033] Among them, 1. Instrument panel cover plate inspection tool; 11. Spring pusher structure; 111. Handle; 112. Spring; 113. Pusher; 114. Fixing block; 115. Limiting block; 1151. First limiting groove; 1152. Second limiting groove; 116. Locking block; 117. Locking block; 12. Handle; 2. Instrument panel; 3. Instrument panel simulation block; 400. Reference; 401. Gap; 402. Surface difference. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0035] The terms “comprising” and “having”, and any variations thereof, in this disclosure, claims, and drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0036] In the description of this disclosure, it should be understood that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings and the orientation or positional relationship commonly understood in the art, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0037] This disclosure provides an automotive dashboard detection device, see [link to relevant documentation]. Figures 1-10 The vehicle instrument panel testing device includes an instrument panel cover plate gauge 1. The outer contour of the instrument panel cover plate gauge 1 matches the instrument panel cover plate. The instrument panel cover plate gauge 1 is provided with a spring push structure 11 that matches the positioning hole and the first snap-fit ​​groove hole on the instrument panel 2. The spring push structure 11 is used to lock and fix the instrument panel cover plate gauge 1 to the instrument panel.

[0038] During vehicle assembly, the area of ​​the instrument panel's rear cover needs to be inspected to ensure that this area matches the assembled instrument panel and its cover, and that the gaps and surface differences after assembly meet the requirements. Existing technology typically uses a manufactured instrument panel cover for inspection, that is, the instrument panel cover is installed on the instrument panel, and the gaps and surface differences after installation are inspected. However, since the instrument panel cover, instrument panel, and instrument panel are all snap-fitted, the snap-fit ​​structure is inconvenient to disassemble and assemble, and the snap-fit ​​points are easily damaged during disassembly and assembly. To address this, this disclosure provides an automotive instrument panel inspection device that uses an instrument panel cover fixture with the same outer edge contour as the instrument panel cover to replace the actual instrument panel cover, and uses a spring-driven structure instead of clips for locking and fixing, thereby facilitating disassembly and assembly. The spring-driven structure is positioned to correspond to the positions of the original clips on the instrument panel cover and instrument panel, and therefore also matches the positioning holes and snap-fit ​​slots on the instrument panel and instrument panel. See also Figure 3 Each instrument panel cover fixture has two rows of spring-loaded push-pull structures, corresponding to the positioning holes and snap-fit ​​slots on the instrument panel and dashboard, respectively. The dashboard has a main positioning hole, a secondary positioning hole, and a first snap-fit ​​slot for mounting; the instrument panel has a second snap-fit ​​slot for mounting. Figure 3 The four spring push-out structures at the top correspond to the second snap-fit ​​slot on the instrument panel, the two spring push-out structures on the left and right sides at the bottom correspond to the main positioning hole and the secondary positioning hole on the instrument panel, respectively, and the spring push-out structure in the middle at the bottom corresponds to the first snap-fit ​​slot on the instrument panel.

[0039] In one possible implementation, see Figures 4-6 The spring pusher structure 11 includes a handle 111, a spring 112, a pusher 113, a fixing block 114, a limiting block 115, and a locking block 116. The pusher 113 is a cylindrical structure. The handle 111 is fixedly disposed at the first end of the pusher 113, and the locking block 116 is fixedly disposed at the second end of the pusher 113 for engaging with a positioning hole or a snap-fit ​​slot on the instrument panel. The fixing block 114 is sleeved on the outside of the pusher 113 for fixed connection with the instrument panel cover gauge. The limiting block 115 is sleeved on the outside of the pusher and fixedly connected to the fixing block 114. The limiting block 115 has a first limiting groove 1151 and a second limiting groove 1152 opened along the length direction of the pusher. The first limiting groove 1151 and the second limiting groove 1152 communicate with the side away from the handle 113. The pusher 113 is also provided with a locking block 117, which protrudes from the side of the pusher 113 and is used to engage with the first limiting groove 1151 or the second limiting groove 1152. The spring 112 is sleeved on the outside of the pusher 113 and is located between the handle 111 and the limiting block 115.

[0040] In one possible implementation, see Figure 7The locking block 116 is a cylindrical structure that penetrates the pusher along the diameter of the pusher section at the second end of the pusher 113 and is perpendicular to the pusher to enhance the locking strength.

[0041] In one possible implementation, the first limiting groove 1151 and the second limiting groove 1152 have the same shape. For ease of processing and use, they are rectangular grooves, with a rounded head on the side near the handle 113 and a flat head on the side away from the handle 113. The first limiting groove 1151 and the second limiting groove 1152 are arranged along the outer surface of the limiting block 115. The plane containing the axis of the first limiting groove and the axis of the limiting block is at a 90-degree angle with the plane containing the axis of the second limiting groove and the axis of the limiting block, so that when the locking block is moved from the first limiting groove to the second limiting groove, the locking block rotates 90 degrees accordingly, thereby locking or unlocking the positioning hole or locking slot on the instrument panel.

[0042] In one possible implementation, the outer surface of the instrument panel cover gauge 1 is also provided with a handle 12 to facilitate hand-held handling and improve the ease of disassembly and assembly.

[0043] In one possible implementation, the vehicle dashboard detection device also includes an instrument panel simulation block 3, see [link to relevant documentation]. Figure 8 The outer contour of the instrument panel simulation block 3 matches the instrument panel, simulating the assembly of the instrument panel onto the dashboard. This ensures matching with the instrument panel cover fixture, thereby enabling inspection of the area where the instrument panel is assembled onto the dashboard. The instrument panel simulation block has a second snap-fit ​​slot, the position and number of which are consistent with the instrument panel and match the spring push-pull structure on the instrument panel cover fixture. Both the instrument panel simulation block and the instrument panel cover fixture use simulated parts as standard parts to replace physical objects for inspection, avoiding damage to the product and improving consistency.

[0044] After assembling the instrument panel cover fixture, instrument panel simulation block, and instrument panel, the gap and surface difference between the outer surfaces of the instrument panel and the instrument panel cover fixture must be inspected. (See attached image) Figure 9 The inspection should be performed at all points around the outer surface of the instrument panel and instrument panel cover fixture, from point a to point b. See [link / reference]. Figure 10 , Figure 10 The left side is the instrument panel cover gauge, and the right side is the instrument panel. There is a gap 401 and a surface difference 402 between the instrument panel and the instrument panel cover gauge. The gap 401 is detected by a gap detection device, and the surface difference 402 between the instrument panel and the instrument panel cover gauge is detected by a surface difference detection device with the reference position 400 at the instrument panel as the reference.

[0045] In a possible implementation, a go-no-go gauge is used for clearance detection. The go-no-go gauge has a go end with a first set size and a no-go end with a second set size, and is used to detect the clearance between the instrument panel cover inspection tool and the instrument panel after the instrument panel cover inspection tool is locked and fixed to the instrument panel. If the go end passes and the no-go end stops, it is qualified; otherwise, it is unqualified.

[0046] In a possible implementation, a dial indicator is used for surface difference detection. The dial indicator is used to detect the surface difference between the instrument panel cover inspection tool and the instrument panel after the instrument panel cover inspection tool is locked and fixed to the instrument panel. It is qualified when the set tolerance requirements are met.

[0047] Based on the above-provided vehicle instrument panel detection device, an embodiment of the present disclosure further provides a vehicle instrument panel detection method, including:

[0048] Install the instrument panel simulation block into the instrument panel;

[0049] Insert each spring push structure on the instrument panel cover inspection tool into the corresponding positioning holes and the first clamping groove holes on the instrument panel, as well as the corresponding second clamping groove holes on the instrument panel simulation block, and make the mating surfaces between the instrument panel cover inspection tool and the instrument panel simulation block and the instrument panel fit;

[0050] Lock and fix each spring push structure with the corresponding positioning holes and clamping groove holes;

[0051] Use the detection equipment to detect the mating part between the instrument panel simulation block and the instrument panel.

[0052] First, install the instrument panel simulation block into the instrument panel, and then insert the spring push structures on the instrument panel cover inspection tool into the main and auxiliary positioning holes, the first clamping groove holes on the instrument panel, and the corresponding second clamping groove holes on the instrument panel simulation block in the physical assembly order, and make them completely fit with the mating surfaces of the instrument panel and the instrument panel simulation block. Then, press the handle of the push structure in sequence and rotate it to the right. The top of the push locks each positioning hole and clamping groove hole.至此仪表屏盖板检具与仪表板及仪表屏模拟块已经固定锁紧。 [[ID=(此处原文有误,推测应为23)]]

[0053] Perform detection according to the following steps: Use a 0.5 - 2.0 mm go-no-go gauge to detect the clearance between the instrument panel and the instrument panel cover inspection tool. If the go end passes and the no-go end stops, it is qualified; otherwise, it is unqualified. The unqualified products should be immediately isolated.

[0054] Place the dial indicator on the zero calibration block to zero it, and then use the zero-calibrated dial indicator to detect the surface difference between the instrument panel and the instrument panel cover inspection tool. The tolerance is -0.5 ± 0.5 mm. If it meets the requirement, it is qualified; otherwise, it is unqualified.

[0055] After the inspection is complete, press the push button and rotate it to the left. The top of the push button can be rotated to release the counter-parts, and the spring will return to its free state. The inspected dashboard can then be removed and placed properly. Defective products should be recorded and isolated.

[0056] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A vehicle dashboard detection device, characterized in that, The instrument panel cover plate fixture includes an outer contour that matches the instrument panel cover plate. The instrument panel cover plate fixture is provided with a spring push structure that matches the positioning hole and the first snap-fit ​​groove hole on the instrument panel. The spring push structure is used to lock and fix the instrument panel cover plate fixture to the instrument panel. The spring pusher structure includes a handle, a spring, a pusher, a fixing block, a limiting block, and a locking block. The handle is fixedly disposed at the first end of the pusher, and the locking block is fixedly disposed at the second end of the pusher for engaging with a positioning hole or a snap-fit ​​slot. The fixing block is sleeved on the outside of the pusher for fixed connection with an instrument panel cover gauge. The limiting block is sleeved on the outside of the pusher and fixedly connected to the fixing block. The limiting block has a first limiting groove and a second limiting groove opened along the length direction of the pusher, and the first limiting groove and the second limiting groove communicate on the side away from the handle. The pusher is also provided with a locking block for engaging within the first limiting groove or the second limiting groove. The spring is sleeved on the outside of the pusher and disposed between the handle and the limiting block. The locking block extends through the pusher and is perpendicular to the pusher; The included angle between the first limiting groove and the second limiting groove is 90 degrees.

2. The automotive dashboard testing device as described in claim 1, characterized in that, The outer surface of the instrument panel cover gauge is also provided with a handle.

3. The automotive dashboard testing device as described in claim 1, characterized in that, It also includes an instrument panel simulation block, the outer contour of which matches the instrument panel; The instrument panel simulation block is provided with a second snap-fit ​​slot for engaging with the instrument panel cover plate, and the spring push-pull structure on the instrument panel cover plate gauge matches the position of the second snap-fit ​​slot.

4. The automotive dashboard testing device as described in claim 1, characterized in that, It also includes a go / no-go gauge, which has a go end of a first predetermined size and a no-go end of a second predetermined size, and is used to detect the gap between the instrument panel cover gauge and the instrument panel after the instrument panel cover gauge is locked and fixed to the instrument panel.

5. The automotive dashboard testing device as described in claim 1, characterized in that, It also includes a dial indicator, which is used to detect the surface difference between the instrument panel cover gauge and the instrument panel after the instrument panel cover gauge is locked and fixed to the instrument panel.

6. A method for detecting an automotive dashboard, characterized in that, A vehicle dashboard detection device according to any one of claims 1-5 includes: Install the instrument panel simulation block into the instrument panel; Insert the spring push-out structures on the instrument panel cover plate fixture into the corresponding positioning holes and first snap-fit ​​slot holes on the instrument panel, as well as the corresponding second snap-fit ​​slot holes on the instrument panel simulation block, and make the mating surfaces between the instrument panel cover plate fixture, the instrument panel simulation block, and the instrument panel fit together. Lock and fix each spring push structure to the corresponding positioning hole and snap-fit ​​slot hole; The instrument panel simulation block and the instrument panel are tested using testing equipment.

7. The method for detecting an automotive dashboard as described in claim 6, characterized in that, The use of testing equipment to test the interface between the instrument panel simulation block and the instrument panel includes: The gap between the instrument panel cover and the instrument panel is checked using a go / no-go gauge. The surface difference between the instrument panel cover gauge and the instrument panel is measured using a dial indicator.

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