Vehicle-mounted display screen backboard detection tool

Abstract

The application relates to a vehicle-mounted display screen backboard detection tool, and belongs to the technical field of automobile part detection. The tool comprises a rack and a plurality of clamping and detection mechanisms installed on the rack. The clamping and detection mechanism comprises a detection support supported on the lower side of a backboard main body, a first clamping block used for pressing the backboard main body on the top of the detection support, and a first driving assembly used for driving the first clamping block to move. The detection support has a supporting plane supported on the lower side surface of the backboard main body. The detection support is provided with a detection through hole at the supporting plane, and a pin detection head is installed at the detection through hole. The application has the effect of detecting the installation of the fixed pin on the display screen backboard.

Description

Technical Field

[0001] This application relates to the field of automotive parts testing, and in particular to a testing fixture for the back panel of an in-vehicle display screen. Background Technology

[0002] As a core interactive component of modern automotive smart cockpits, the assembly quality of in-vehicle displays directly affects the vehicle's safety and user experience. In-vehicle displays typically have a back panel mounted on the back, which connects to the center console structure.

[0003] Reference Figure 1 The existing display screen backplate includes an arc-shaped backplate body 1. The backplate body 1 has spaced-apart fixing pins 11, positioning holes 12 formed in the backplate body 1, and backplate ridges 13 located around the fixing pins 11. Currently, in the production and assembly process of vehicle-mounted displays, the inspection of the backplate pins mainly relies on manual visual inspection. Operators need to rely on experience to observe the appearance and insertion depth of the fixing pins. This method is affected by fatigue, lighting conditions, and viewing angle differences, resulting in poor inspection consistency, a high risk of missed inspections, and difficulty in accurate judgment. If installation quality problems with the fixing pins are not detected in time, it will affect the overall quality and stability of the vehicle-mounted display screen. Regarding the aforementioned technologies, when the display screen back panel is installed on the vehicle's center console, it needs to be connected and fixed to the center console via fixing pins. The inventors believe that if the fixing pins break or are missing, it will affect the fixing effect between the display screen back panel and the vehicle's center console. Therefore, a device is needed to detect the installation status of the fixing pins on the display screen back panel. Utility Model Content

[0004] In order to inspect the installation of the fixing pins on the back panel of the display screen, this application provides a tooling for inspecting the back panel of a vehicle-mounted display screen.

[0005] The technical solution for the vehicle display screen back panel inspection fixture provided in this application is as follows: A vehicle-mounted display screen back panel inspection fixture includes a frame and multiple clamping and inspection mechanisms mounted on the frame; the clamping and inspection mechanism includes an inspection bracket supported on the lower side of the back panel body, a first clamping block for pressing the back panel body against the top of the inspection bracket, and a first driving component for driving the first clamping block to move; the inspection bracket has a support plane supported on the lower surface of the back panel body, the inspection bracket has an inspection through hole at the support plane and a pin inspection head is installed at the inspection through hole.

[0006] By adopting the above technical solution, multiple clamping and detection mechanisms are set on the frame, enabling the detection of fixing pins at different positions on the back panel of the display screen. The detection bracket is supported on the lower side of the back panel body. The first clamping block, driven by the first driving component, presses the back panel body tightly against the top of the detection bracket, making the back panel body more stable. The support plane of the detection bracket fits snugly against the lower surface of the back panel body, ensuring support stability and facilitating the smooth progress of the detection process. A pin detection head is installed at the detection through-hole on the support plane of the detection bracket, enabling the detection of the pins on the back panel body.

[0007] Optionally, the first clamping block includes a first pressing block, which corresponds to one of the detection brackets.

[0008] By adopting the above technical solution, multiple first clamping blocks are used in the vehicle display screen back panel testing fixture, and each first clamping block corresponds to a testing bracket. This allows for clamping and holding different positions of the back panel body, making the back panel body more stable during the testing process and improving the accuracy and reliability of the testing.

[0009] Optionally, the first drive assembly includes a first cylinder arranged vertically upward below the clamping through hole, a first clamping rod connected to the first clamping block, and a first fixing rod connected to the bottom of the first clamping rod; the first clamping rod is hinged to the top of the piston rod of the first cylinder.

[0010] By adopting the above technical solution, the structure of the first driving assembly is disclosed. A first cylinder is vertically fixed to the frame, a first clamping rod is connected to the first clamping block, and a first fixing rod is connected to the bottom of the first clamping rod. The first clamping rod is hinged to the top of the cylinder piston rod, allowing the first clamping rod to tilt through the lifting and lowering of the cylinder piston rod, thus achieving stable lifting and clamping of the first clamping block. This facilitates the loading and unloading of the backplate body and improves the detection stability of the backplate body.

[0011] Optionally, the first clamping block includes a second pressing block, which corresponds to two of the detection brackets.

[0012] By adopting the above technical solution, the second clamping block in the first clamping block corresponds to two detection brackets, which can simultaneously clamp the back plate main body area corresponding to two adjacent detection brackets, improving the clamping efficiency and stability, reducing the number of detection brackets and the first clamping block, and helping to simplify the tooling structure and improve detection efficiency.

[0013] Optionally, the second clamping block has two clamping protrusions that abut against the upper surface of the back plate body; the clamping protrusions correspond one-to-one with the detection bracket.

[0014] By adopting the above technical solution, the bottom of the second pressing block of the first clamping block has two pressing protrusions that abut against the upper surface of the back plate body and correspond to the two detection brackets respectively. This can more stably press the back plate body onto the top of the detection brackets, reducing the situation where the pressing force is too small to clamp due to unevenness of the top surface of the back plate body or the pressing force is too large to damage the back plate body, thus facilitating the smooth progress of the detection process.

[0015] Optionally, an auxiliary clamping mechanism may also be included; the auxiliary clamping mechanism includes a second clamping block, a second drive component for driving the second clamping block to move, and an auxiliary support frame that cooperates with the second clamping block to clamp the back plate body to the top of the frame.

[0016] By adopting the above technical solution, the auxiliary clamping mechanism is configured to cooperate with the second clamping block, the second drive component, and the auxiliary support frame, which can work together with the clamping and detection mechanism to more firmly clamp the back plate body to the top of the frame, thereby improving the clamping stability of the back plate body, reducing the probability of the back plate body slipping, and facilitating the smooth progress of the detection operation.

[0017] Optionally, the top of the testing bracket is also provided with a testing pad that fits against the lower surface of the back plate body.

[0018] By adopting the above technical solution, a detection pad is set on the top of the detection bracket to abut against the lower surface of the back plate body. This pad can fit tightly against the lower surface of the back plate body during the detection process, providing effective support while reducing the possibility of slippage of the back plate body and improving the detection stability of the back plate body.

[0019] Optionally, the bottom of the pin detection head is provided with a circumferentially arranged lifting external thread; the detection through hole is provided with a lifting internal thread that mates with the lifting external thread.

[0020] By adopting the above technical solution, the lifting external thread at the bottom of the pin detection head cooperates with the lifting internal thread in the detection through hole, enabling the pin detection head to move freely up and down. This facilitates adjusting the height of the pin detection head according to actual detection needs, thereby improving the accuracy and flexibility of the detection.

[0021] Optionally, the frame is also provided with movable lifting rings at the four corners of the top.

[0022] By adopting the above technical solution, movable lifting rings are set at the four corners of the top of the frame, which facilitates the movement and handling of the vehicle display screen back panel inspection fixture, and improves the flexibility of the inspection environment.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. A vehicle display screen back panel inspection fixture, which, by setting multiple sets of clamping and inspection mechanisms on the frame, allows the pin inspection head on the inspection bracket to inspect the fixing pins at different positions on the back panel body, promptly detect pin installation quality problems, and improve the accuracy and efficiency of inspection; 2. By setting the first clamping block and the first driving component, the back plate body can be clamped and pressed, and can be flexibly adjusted according to the testing requirements. After clamping, the back plate body can be tested. The back plate body can be stabilized during the testing process, reducing the impact of the back plate body's shaking on the testing results. At the same time, it reduces the difficulty in testing the fixed pin due to the bending of the back plate body, which is conducive to the smooth progress of the testing process. 3. By setting a second clamping block and a clamping protrusion on the second clamping block, the number of first clamping blocks and first drive components can be reduced, thus reducing the weight of the tooling; the smaller lower surface area of ​​the clamping protrusion can adapt to the back plate body surface with different flatness, clamp the back plate body, reduce the possibility of back plate body movement, and facilitate smooth testing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the backplate body in an embodiment of this application.

[0025] Figure 2 This is a schematic diagram of the structure of the vehicle display screen back panel testing fixture according to an embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the frame structure according to an embodiment of this application.

[0027] Figure 4 This is a schematic diagram of the structure of the detection bracket in an embodiment of this application.

[0028] Figure 5 This is a cross-sectional schematic diagram of the clamping and detection mechanism according to an embodiment of this application.

[0029] Figure 6 This is a schematic diagram of the cooperation between the first clamping block and the first driving component in an embodiment of this application.

[0030] Figure 7 This is a schematic diagram of the auxiliary clamping mechanism in an embodiment of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Backplate main body; 11. Fixing pin; 12. Positioning hole; 13. Backplate raised texture; 2. Frame; 21. Frame top plate; 211. Mounting groove; 212. Positioning pin; 2121. Limiting pin; 2122. Support ring surface; 213. First clamping through hole; 214. Arrangement groove; 215. Second clamping through hole; 22. Frame support leg; 23. Moving lifting ring; 3. Clamping detection mechanism; 31. Detection bracket; 311. Fixing support leg; 312. Detection crossbar; 3121. Detection through hole; 31211. Lifting internal thread; 313. Detection pad; 3131. Support 32. Plane; 321. First clamping block; 322. Second clamping block; 3221. Clamping protrusion; 33. First drive assembly; 331. First cylinder; 332. First clamping rod; 333. First fixing rod; 3331. First rotation fulcrum; 34. Pin detection head; 341. Lifting external thread; 4. Display device; 41. Indicator light; 5. Auxiliary clamping mechanism; 51. Auxiliary support frame; 52. Second clamping block; 53. Second drive assembly; 531. Second cylinder; 532. Second clamping rod; 533. Second fixing rod; 5331. Second rotation fulcrum. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0033] This application discloses a tooling for testing the back panel of an automotive display screen. (Refer to...) Figure 2 A vehicle display screen back panel inspection fixture includes a frame 2 and multiple clamping inspection mechanisms 3 mounted on the frame 2; the clamping inspection mechanism 3 includes an inspection bracket 31 supported on the lower side of the back panel body 1, a first clamping block 32 for pressing the back panel body 1 against the top of the inspection bracket 31, and a first driving component 33 for driving the first clamping block 32 to move.

[0034] Reference Figure 2 The frame 2 is equipped with a horizontally arranged frame top plate 21 and frame legs 22 installed at both ends of the frame top plate 21 to provide support for the frame top plate 21. Vertically arranged movable lifting rings 23 are installed at the four corners of the top of the frame top plate 21 to facilitate the connection and fixation of the lifting equipment during use, and to move the vehicle display screen back panel inspection fixture to the inspection position.

[0035] Reference Figure 2 and Figure 3The top plate 21 of the frame has a mounting groove 211 located below the corresponding fixing pin 11 on the back plate body 1. The detection bracket 31 has a fixing leg 311 fixed in the mounting groove 211 and a detection crossbar 312 connected to the fixing leg 311 at both ends. There are two fixing legs 311, which abut against the two side walls of the mounting groove 211 respectively, and are bolted to connect the fixing legs 311 to the bottom surface of the mounting groove 211.

[0036] Reference Figure 1 and Figure 4 The top of the detection crossbar 312 is provided with a detection pad 313, and the upper side of the detection pad 313 has a support plane 3131 that supports the lower surface of the back plate body 1. The support plane 3131 fits into the back plate texture 13 on the lower surface of the back plate body 1, providing better support for the back plate body 1.

[0037] Reference Figure 4 and Figure 5 The detection crossbar 312 has a detection through hole 3121 at the support plane 3131, and a pin detection head 34 is installed in the detection through hole 3121. The bottom of the pin detection head 34 has a circumferentially arranged lifting external thread 341, and the detection through hole 3121 has a lifting internal thread 31211 that mates with the lifting external thread 341. By rotating the pin detection head 34, the lifting arrangement of the pin detection head 34 in the detection through hole 3121 can be adjusted according to the actual detection requirements of the back plate body 1. The top surface of the pin detection head 34 is a circular detection plane. When the fixed pin 11 is close to the circular detection plane, the pin detection head 34 can sense the detection signal. In this embodiment, the pin detection head 34 is an inductive metal proximity switch, model NBN4-M8GM50-E0M8. Reference Figure 1 and Figure 3 The top plate 21 of the frame is also provided with positioning posts 212 corresponding to the positioning holes 12 on the back plate body 1. The positioning posts 212 have vertically arranged limiting posts 2121 that pass through the positioning holes 12 and support ring surfaces 2122 that support the bottom surface of the back plate body 1. When the back plate body 1 is arranged on the top of the top plate 21 of the frame, both positioning holes 12 are aligned with the positioning posts 212, and the support ring surfaces 2122 on the positioning posts 212 provide support for the back plate body 1.

[0038] Reference Figure 2 and Figure 3 The top plate 21 of the frame is also provided with a display device 4 located on one side of the clamping and detection mechanism 3. The display device 4 includes an indicator light 41 arranged on one side of the top plate 21 of the frame and electrically connected to the clamping and detection mechanism 3. When a signal corresponding to the pin detection head 34 is sensed, the indicator light 41 can light up to indicate the operator's detection status.

[0039] Reference Figure 3 and Figure 6 The top plate 21 of the frame is also provided with a first clamping through hole 213 for mounting the first clamping block 32 and the first drive assembly 33. The first clamping block 32 includes a first pressing block 321, which corresponds to a detection bracket 31 and cooperates with the corresponding detection bracket 31 to clamp the back plate body 1. The bottom surface of the first pressing block 321 is a pressing plane, which is in contact with the top surface of the fixing pin 11 of the corresponding back plate body 1.

[0040] Reference Figure 4 and Figure 6 The first clamping block 32 also includes a second pressing block 322, which corresponds to two detection brackets 31. The bottom surface of the second pressing block 322 has two pressing protrusions 3221 that abut against the upper surface of the backplate body 1. The bottom surface of the pressing protrusions 3221 corresponds one-to-one with the support plane 3131 on the top of the detection bracket 31 on the lower side of the backplate body 1 and cooperates with each other to clamp and fix the backplate body 1, reducing the possibility of insufficient clamping force or excessive clamping force causing damage to the backplate body 1 due to unevenness of the top surface of the backplate body 1. Reference Figure 3 and Figure 6 The first drive assembly 33 includes a first cylinder 331 arranged vertically upward below the clamping through hole, a first clamping rod 332 connected to the first clamping block 321 / second clamping block 322, and a first fixing rod 333 connected to the bottom of the first clamping rod 332. The first cylinder 331 is fixed to the bottom of the frame top plate 21, and its piston rod extends vertically upward into the first clamping through hole 213. The end of the piston rod is hinged to the first clamping rod 332. The connection between the first clamping rod 332 and the first fixing rod 333 is the first rotation fulcrum 3331. A drive switch for controlling the first cylinder 331 is also provided on one side of the frame 2. When the drive switch is turned on, the first cylinder 331 drives the piston rod to rise. The piston rod drives the first clamping rod 332 to rotate around the first rotation fulcrum 3331 toward the back plate body 1, so that the first clamping block 321 at the end of the first clamping rod 332 can abut against the top surface of the back plate body 1. When the first cylinder 331 drives the piston rod to descend, the piston rod drives the first pressing rod 332 to rotate around the first rotation fulcrum 3331 away from the back plate body 1, so that the first pressing block 321 at the end of the first pressing rod 332 can move away from the top surface of the back plate body 1.

[0041] Reference Figure 2 and Figure 7The top plate 21 of the frame is also provided with an auxiliary clamping mechanism 5 arranged on the opposite side of the clamping and detection mechanism 3. The auxiliary clamping mechanism 5 includes a second clamping block 52, a second drive assembly 53 that drives the second clamping block 52, and an auxiliary support frame 51 that cooperates with the second clamping block 52 to clamp the back plate body 1 to the top of the frame 2. The top of the top plate 21 is provided with an arrangement groove 214 located below the second clamping block 52, and the bottom end of the auxiliary support frame 51 is installed in the arrangement groove 214. The top of the auxiliary support frame 51 abuts against the lower surface of the back plate body 1, providing support for the back plate body 1.

[0042] Reference Figure 2 and Figure 7 The top plate 21 of the frame also has a second clamping through hole 215 for mounting the second clamping block 52 and the second drive assembly 53. The second drive assembly 53 includes a second cylinder 531 fixed to the bottom of the top plate 21 of the frame, a second clamping rod 532, and a second fixing rod 533 connected to the bottom of the second clamping rod 532. The second cylinder 531 is fixed to the bottom of the top plate 21 of the frame, and the piston rod extends vertically upward into the second clamping through hole 215. The end of the piston rod is hinged to the second clamping rod 532. The connection between the second clamping rod 532 and the second fixing rod 533 is the second rotation fulcrum 5331. The drive switch on one side of the frame 2 can also control the second cylinder 531. When the second cylinder 531 drives the piston rod to rise, the piston rod drives the second clamping rod 532 to rotate around the second rotation fulcrum 5331 toward the back plate body 1, so that the auxiliary clamping block at the end of the second clamping rod 532 can abut against the top surface of the back plate body 1.

[0043] Reference Figures 1 to 7 The implementation principle of the vehicle display screen back panel testing fixture in this application embodiment is as follows: by setting positioning posts 212, testing brackets 31 and auxiliary support brackets 51 on the frame 2, the back panel body 1 is provided with limiting and support. When the back panel body 1 is placed on the frame 2, the clamping testing mechanism 3 and the auxiliary clamping mechanism 5 clamp the back panel body 1. The top pin testing head 34 of the testing bracket 31 detects the fixing pins 11 at the bottom of the back panel body 1. The signal after detection is transmitted to the display device 4 to prompt the operator on the testing status.

[0044] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tooling for inspecting the back panel of a vehicle-mounted display screen, characterized in that, The device includes a frame (2) and multiple clamping and detection mechanisms (3) mounted on the frame (2); the clamping and detection mechanism (3) includes a detection bracket (31) supported on the lower side of the back plate body (1), a first clamping block (32) for pressing the back plate body (1) against the top of the detection bracket (31), and a first driving component (33) for driving the first clamping block (32) to move; the detection bracket (31) has a support plane (3131) supported on the lower surface of the back plate body (1), and the detection bracket (31) has a detection through hole (3121) at the support plane (3131) and a pin detection head (34) is installed at the detection through hole (3121).

2. The vehicle-mounted display screen back panel inspection fixture according to claim 1, characterized in that, The first clamping block (32) includes a first pressing block (321), which corresponds to one of the detection brackets (31).

3. The vehicle-mounted display screen back panel inspection fixture according to claim 2, characterized in that, The first drive assembly (33) includes a first cylinder (331) arranged vertically upward on the lower side of the clamping through hole, a first clamping rod (332) connected to the first clamping block (321), and a first fixing rod (333) connected to the bottom of the first clamping rod (332); the first clamping rod (332) is hinged to the top of the piston rod of the first cylinder (331).

4. The vehicle-mounted display screen back panel inspection fixture according to claim 1, characterized in that, The first clamping block (32) includes a second pressing block (322), which corresponds to the two detection brackets (31).

5. The vehicle-mounted display screen back panel inspection fixture according to claim 4, characterized in that, The second clamping block (322) has two clamping protrusions (3221) that abut against the upper surface of the back plate body (1); the clamping protrusions (3221) correspond one-to-one with the detection bracket (31).

6. The vehicle-mounted display screen back panel inspection fixture according to claim 1, characterized in that, It also includes an auxiliary clamping mechanism (5); the auxiliary clamping mechanism (5) includes a second clamping block (52), a second drive assembly (53) that drives the second clamping block (52) to move, and an auxiliary support frame (51) that cooperates with the second clamping block (52) to clamp the back plate body (1) to the top of the frame (2).

7. The vehicle-mounted display screen back panel inspection fixture according to claim 1, characterized in that, The top of the detection bracket (31) is also provided with a detection pad (313) that fits against the lower surface of the back plate body (1).

8. The vehicle-mounted display screen back panel inspection fixture according to claim 1, characterized in that, The bottom of the pin detection head (34) is provided with a circumferentially arranged lifting external thread (341); the detection through hole (3121) is provided with a lifting internal thread (31211) that cooperates with the lifting external thread (341).

9. The vehicle-mounted display screen back panel inspection fixture according to claim 1, characterized in that, The frame (2) is also equipped with movable lifting rings (23) at the four corners of the top.

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