Movable optical testing fixture

Abstract

A movable optical testing fixture of the present invention comprises a fixed rack, an adjusting mechanism and a vehicle lamp module, the fixed rack is provided with a support plate capable of moving up and down, the fixed rack is provided with a locking mechanism used for locking or loosening the support plate, the adjusting mechanism comprises four universal ball valves, four adjusting screw rods and two first connecting plates, and the adjusting screw rods are connected with the two first connecting plates. The four universal ball valves are arranged on the supporting plate and distributed in a rectangular shape, one end of each adjusting screw rod is provided with a ball head, the ball heads on the four adjusting screw rods are located in the four universal ball valves respectively, one of the two first connecting plates is in threaded connection with the two adjusting screw rods located on the upper portion, and the other one of the two first connecting plates is in threaded connection with the two adjusting screw rods located on the lower portion. And the other first connecting plate is in threaded connection with the two adjusting screw rods located on the lower portion, and the automobile lamp module is arranged on the two first connecting plates. According to the invention, six-degree-of-freedom adjustment can be carried out on the vehicle lamp module, and the efficiency and accuracy of optical detection of the vehicle lamp module are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of optical detection of automobile lamps, and particularly relates to a movable optical detection tool. BACKGROUND

[0002] With the development of the automobile industry towards intelligence and safety, the optical performance (such as brightness, uniformity of light distribution, color temperature, beam angle, etc.) of the automobile lamp as a core component of the active safety system directly affects the driving safety and the compliance with regulations. According to the requirements of the automobile lamp standards (such as ECE R112 and SAE J575), the automobile lamp must pass high-precision optical detection before leaving the factory. The current optical detection tool for the automobile lamp module can only design the light distribution according to the original angle, and the function is single, and the angle of the automobile lamp module at each angle cannot be adjusted, resulting in an unsatisfactory detection effect. SUMMARY

[0003] The purpose of the present application is to provide a movable optical detection tool which can adjust the automobile lamp module in six degrees of freedom, greatly improving the efficiency and accuracy of optical detection of the automobile lamp module.

[0004] The present application is realized by the following technical solutions: A movable optical detection tool, comprising: a fixed rack, a support plate movable up and down being arranged on the fixed rack; a locking mechanism for locking or loosening the support plate and the fixed rack; an adjusting mechanism, the adjusting mechanism comprising four universal ball valves, four adjusting screws and two first connecting plates, the four universal ball valves being arranged on the support plate and being distributed in a rectangular shape, one end of the adjusting screw being provided with a ball head, the ball heads of the four adjusting screws being located in the four universal ball valves respectively, one of the two first connecting plates being threadedly connected with the two adjusting screws located above, and the other first connecting plate being threadedly connected with the two adjusting screws located below; an automobile lamp module, the automobile lamp module being arranged on the two first connecting plates.

[0005] Further, the first connecting plate is provided with two first through holes for the two adjusting screws to pass through respectively, the first connecting plate being provided with a fixed sheet at the position of the first through hole for plugging the first through hole, and the fixed sheet being provided with a first threaded hole threadedly connected with the adjusting screw.

[0006] Further, the first connecting plate is connected with the automobile lamp module through two second connecting plates.

[0007] Further, the fixed rack is provided with a second through hole, and the automobile lamp module is arranged through the second through hole.

[0008] Furthermore, the fixed platform includes a first base plate, a second base plate, a first fixing plate, a second fixing plate, and a guide rail. The second base plate is disposed on the first base plate, and the first fixing plate and the second fixing plate are perpendicularly disposed on the second base plate. The guide rail is disposed on the side of the first fixing plate away from the second fixing plate, and a slider is provided on the support plate. The slider is slidably disposed on the guide rail.

[0009] Furthermore, the locking mechanism includes a support connecting block, a locking screw, a rubber plug, and a handle. The support connecting block is fixed to one side of the support plate. The support block is provided with a second threaded hole. The locking screw is threadedly connected to the second threaded hole. The rubber plug is located on the end of the locking screw near the fixed frame and is used to abut against the fixed frame. The handle is located on the end of the locking screw away from the rubber plug.

[0010] Compared to existing technologies, the advantages of this invention are as follows: During optical light distribution, the first connecting plate moves along the adjusting screw by rotating the adjusting screw. Simultaneously, the universal ball valve and the ball head of the adjusting screw can freely swing around the center of the ball. That is, rotating one adjusting screw causes it to swing around the axis formed by the two adjusting screws on the opposite side. Thus, by adjusting the four adjusting screws, six degrees of freedom of adjustment can be achieved, i.e., six-axis adjustment. When all four adjusting screws are adjusted together, translation can be performed along the normal direction of the plane formed by the four adjusting screws. Then, vertical adjustment is performed via a vertically movable support plate. In total, eight-axis adjustment can be achieved, satisfying the installation of the vehicle lamp module at various angles, completely covering the adjustment angle of the entire lamp, making light distribution more accurate, and greatly improving the efficiency and accuracy of optical detection of the vehicle lamp module. It has advantages such as simple structure, convenient operation, ingenious design, low cost, small size, high practicality, and ease of popularization, and can be applied to a wide range of modules for optical light distribution needs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the movable optical fixture of the present invention; Figure 2 This is a partially enlarged schematic diagram of the movable optical gauge of the present invention; Figure 3 This is a rear view of the movable optical fixture of the present invention; Figure 4 for Figure 3 A cross-sectional diagram of AA; Figure 5 for Figure 3 A cross-sectional diagram of BB; Figure 6 for Figure 3 A cross-sectional diagram of CC.

[0012] In the figure, 1 - car light module, 2 - support plate, 3 - universal ball valve, 4 - adjusting screw, 5 - first connecting plate, 6 - ball head, 7 - first through hole, 8 - fixed sheet, 9 - second connecting plate, 10 - second through hole, 11 - first bottom plate, 12 - second bottom plate, 13 - first fixed plate, 14 - second fixed plate, 15 - guide rail, 16 - sliding block, 17 - support connecting block, 18 - locking screw, 19 - rubber plug, 20 - handle. DETAILED DESCRIPTION

[0013] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings of the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0015] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0016] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0018] Please refer to Figures 1 to 5 , Figure 1 for the structural schematic diagram of the movable optical gauge of the present application, Figure 2 for the partial enlarged schematic diagram of the movable optical gauge of the present application, Figure 3 for the rear view of the movable optical gauge of the present application, Figure 4 for the sectional view of A-A of Figure 3 , Figure 5 for the sectional view of B-B of Figure 3 . A movable optical gauge, comprising a fixed rack, a locking mechanism, an adjusting mechanism and a car lamp module 1, the fixed rack is provided with a support plate 2 that can move up and down, the locking mechanism is used to lock or loosen the support plate 2 and the fixed rack, the adjusting mechanism comprises four universal ball valves 3, four adjusting screws 4 and two first connecting plates 5, the four universal ball valves 3 are arranged on the support plate 2 and are distributed in a rectangular shape, one end of the adjusting screw 4 is provided with a ball head 6, the ball head 6 on the four adjusting screws 4 is located in the four universal ball valves 3 respectively, one of the two first connecting plates 5 is threadedly connected with the two adjusting screws 4 located above, and the other first connecting plate 5 is threadedly connected with the two adjusting screws 4 located below, and the car lamp module 1 is arranged on the two first connecting plates 5.

[0019] Specifically, in the present embodiment, the universal ball valve 3 is provided with a spherical recess, the ball head 6 on the adjusting screw 4 is arranged in the spherical recess, and the spherical recess of the universal ball valve 3 and the ball head 6 of the adjusting screw 4 are assembled to form a universal rotation structure. When the optical detection of the vehicle lamp module 1 is performed, the vehicle lamp module 1 is installed on the two first connecting plates 5, the first connecting plate 5 is moved along the adjusting screw 4 by rotating the adjusting screw 4, and the universal ball valve 3 and the ball head 6 of the adjusting screw 4 can freely swing around the ball center, that is, each rotation of one adjusting screw 4 swings around the axis formed by the two adjusting screws 4 on the opposite side, so that six degrees of freedom can be adjusted by adjusting the four adjusting screws 4 respectively, that is, six-axis adjustment is realized, and when the four adjusting screws 4 are adjusted together, translation along the normal direction of the plane formed by the four adjusting screws 4 can be realized, and then vertical adjustment is performed through the up-and-down movable supporting plate 2. In this way, a total of eight-axis adjustment can be realized, the installation of the vehicle lamp module 1 at various angles is satisfied, the adjustment angle of the whole lamp is completely covered, the light distribution is more accurate, and the efficiency and accuracy of the optical detection of the vehicle lamp module 1 are greatly improved. The present application has the advantages of simple structure, convenient operation, ingenious design, low cost, small size, high practicability, easy popularization and the like, and can be applied to a wide range of modules for optical light distribution requirements.

[0020] In an embodiment, the first connecting plate 5 is provided with two first through holes 7 for the two adjusting screws 4 to pass through respectively, and the first connecting plate 5 is provided with a fixed sheet 8 for plugging the first through hole 7 at the position of the first through hole 7. The fixed sheet 8 is provided with a first threaded hole for threadedly connecting with the adjusting screw 4. The fixed sheet 8 and the adjusting screw 4 form a change of the movement direction through the threaded feature, and the rotation of the adjusting screw 4 is changed into the movement of the first connecting plate 5 along the adjusting screw 4. Moreover, the fixed sheet 8 is threadedly connected with the adjusting screw 4, so that there is a gap between the adjusting screw 4 and the first connecting plate 5, preventing the adjusting screw 4 from being stuck. The material of the adjusting screw 4 and the fixed sheet 8 is not limited to carbon steel, stainless steel, zinc-nickel alloy and the like metal. In an embodiment, the universal ball valve 3 is embedded into the supporting plate 2 through a clamping mode.

[0021] In an embodiment, the first connecting plate 5 is connected with the vehicle lamp module 1 through two second connecting plates 9. This arrangement facilitates the installation of the vehicle lamp module 1 on the two first connecting plates 5, and the second connecting plate 9 can be bolted between the first connecting plate 5 and the vehicle lamp module 1.

[0022] In an embodiment, the fixed bench is provided with a second through hole 10, and the vehicle lamp module 1 is arranged to pass through the second through hole 10. This arrangement makes the front end of the vehicle lamp module 1 exposed, and the front end of the vehicle lamp module 1 is a light-emitting area, so that the light distribution detection of the vehicle lamp module 1 can be better performed.

[0023] Please refer to Figure 6 , Figure 6For Figure 3 The fixed rack comprises a first base plate 11, a second base plate 12, a first fixed plate 13, a second fixed plate 14 and a guide rail 15. The second base plate 12 is arranged on the first base plate 11, the first fixed plate 13 and the second fixed plate 14 are arranged vertically on the second base plate 12, and the first fixed plate 13 and the second fixed plate 14 are arranged vertically. The guide rail 15 is arranged on the side of the first fixed plate 13 away from the second fixed plate 14. The support plate 2 is provided with a sliding block 16, and the sliding block 16 is slidably arranged on the guide rail 15. The cooperation between the guide rail 15 and the sliding block 16 is not limited to the slidable structure features such as U, W and V, so as to realize the up-down movement of the support plate 2 along the fixed rack.

[0024] In an embodiment, the locking mechanism comprises a support connecting block 17, a locking screw 18, a rubber plug 19 and a handle 20. The support connecting block 17 is fixed on one side of the support plate 2, and the support block is provided with a second threaded hole. The locking screw 18 is threadedly connected with the second threaded hole. The rubber plug 19 is arranged on the end of the locking screw 18 close to the fixed rack, and is used to abut against the fixed rack. The handle 20 is arranged on the end of the locking screw 18 away from the rubber plug 19. When it is needed to lock the support plate 2 and the fixed rack, the handle 20 drives the locking screw 18 to rotate, so that the locking screw 18 moves along the second threaded hole, thereby the rubber plug 19 is pressed tightly on the fixed rack by the locking screw 18, the friction between the rubber plug 19 and the fixed rack is increased, and thus the support plate 2 is fixed on the fixed rack. When it is needed to loosen the support plate 2 and the fixed rack, the handle 20 drives the locking screw 18 to rotate, so that the locking screw 18 moves along the second threaded hole, thereby the rubber plug 19 is driven away from the fixed rack by the locking screw 18, and at this time the support plate 2 can move up and down along the vertical direction on the fixed rack. Further, the support connecting block 17 is connected with the support block by a bolt. In an embodiment, the support connecting block 17 is in an L shape, comprising a vertical part and a horizontal part. The horizontal part is fixed on one side of the support plate 2, and the second threaded hole is arranged on the vertical part.

[0025] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present application, without departing from the technical solution of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A portable optical gauge, comprising: The utility model relates to a vehicle lamp module fixing device, including: A fixed bench is equipped with the support plate that can move up and down on the fixed bench; Locking mechanism is used for locking or loosening the support plate and the fixed bench; Adjusting mechanism includes four universal ball valves, four adjusting screw rods and two first connecting plates, four the universal ball valves are arranged on the support plate, and are distributed in rectangle, one end of adjusting screw rod is equipped with the ball head, the ball head on four adjusting screw rods is located in four universal ball valves respectively, one first connecting plate in two first connecting plates is connected with two adjusting screw rods in the upper portion screw thread, another first connecting plate is connected with two adjusting screw rods in the lower portion screw thread; Vehicle lamp module is arranged on two first connecting plates.

2. The active optical gauge of claim 1, wherein, The first connecting plate is equipped with two first through holes for two adjusting screw rods to pass through respectively, the first connecting plate is equipped with the fixed sheet for plugging the first through hole in the position of first through hole, the fixed sheet is equipped with the first screw hole for adjusting screw rod screw thread connection.

3. The active optical gauge of claim 1, wherein, The first connecting plate is connected with vehicle lamp module through two second connecting plates.

4. The active optical gauge of claim 1, wherein, The fixed bench is equipped with the second through hole, and the vehicle lamp module is arranged through the second through hole.

5. The active optical gauge of claim 1, wherein, The fixed bench includes the first bottom plate, the second bottom plate, the first fixed plate, the second fixed plate and the guide rail, the second bottom plate is arranged on the first bottom plate, the first fixed plate and the second fixed plate are arranged vertically on the second bottom plate, and the first fixed plate and the second fixed plate are arranged vertically, the guide rail is arranged on the side of the first fixed plate away from the second fixed plate, the support plate is equipped with the sliding block, and the sliding block is arranged on the guide rail.

6. The active optical gauge of claim 1, wherein, The locking mechanism includes support connecting block, locking screw rod, rubber plug and handle, the support connecting block is fixed on one side of the support plate, the support block is equipped with the second screw hole, the locking screw rod is connected with the second screw hole screw thread, the rubber plug is arranged on the end of locking screw rod close to the fixed bench, is used for with fixed bench abuts, the handle is arranged on the end of locking screw rod away from rubber plug.

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