Backlight source detection jig

Abstract

The utility model discloses a backlight detection jig, which belongs to the field of detection jigs and comprises a mold, a rubber frame to be detected is placed in the mold, and a plurality of rubber frame upright posts are arranged at the bottom of the rubber frame; the spring detector is located below the rubber frame, the pressing plate is located above the mold, a second support and a third support are arranged on the edge of the pressing plate, and the pressing plate is hinged to the third support; the device further comprises a movable pressing part located above the pressing plate, a sixth support is arranged at one end of the movable pressing part, the bottom of the sixth support is fixed to the end of the pressing plate, and one end of the movable pressing part is hinged to the sixth support. An industrial control board is placed in the bottom box, and a wire passing hole is formed in the side portion of the bottom box. According to the backlight source detection jig disclosed by the utility model, the rubber frame stand column in the mold is in contact with the spring detector through the pressing of the pressing plate, so that the concentricity of the rubber frame stand column in the backlight source can be detected.

Description

Technical Field

[0001] The utility model relates to the field of detection jigs, in particular to a backlight source detection jig. Background Art

[0002] A fixture is a tool used in the field of mechanical processing and electronic control to assist in controlling position or action. The backlight is a light source located behind the LCD display. Its luminous effect will affect the visual effect of the LCD display module. The LCD display itself does not emit light, and its displayed image is the result of light modulation. Before installing and using the backlight, some parameters of the backlight need to be tested by some special testing instruments, such as backlight rubber frame testing. In the process of backlight testing, some components need to be assisted in positioning or testing by backlight testing fixtures.

[0003] In the prior art, Chinese patent announcement number CN208399844U discloses a backlight inspection jig, which includes a base and a placement slot on the base, and is used to detect the problem of abnormal attachment of the backlight glue. However, it cannot be used to detect some parameters of the backlight glue frame, such as the concentricity of the backlight glue frame column. Utility Model Content

[0004] The utility model provides a backlight source detection jig, which aims to solve the problem that the existing backlight source detection jig mentioned in the background technology cannot perform auxiliary detection on the concentricity of the rubber frame column in the backlight source.

[0005] In order to achieve the above purpose, the utility model adopts the following scheme:

[0006] The utility model provides a backlight source detection jig, comprising a mold, in which a rubber frame to be detected is placed, and a plurality of rubber frame columns are arranged at the bottom of the rubber frame; a spring detector is also included, and the spring detector is located below the rubber frame, and the bottom of the rubber frame column contacts the spring detector; a pressing plate is also included, and the pressing plate is located above the mold; when the pressing plate is in a pressed state, the bottom of the pressing plate contacts the rubber frame; the second support and the third support are respectively arranged at the edge of the pressing plate, and the pressing plate is hinged to the third support; and a movable pressing portion is also included. , the movable pressing part is located above the pressing plate, a sixth support is arranged at one end of the movable pressing part, the bottom of the sixth support is fixed to the end of the pressing plate, and one end of the movable pressing part is hinged to the sixth support; when the movable pressing part is lifted or lowered around the sixth support, the pressing plate is driven to rotate around the third support; it also includes a bottom box, the mold and the spring detector are both arranged above the bottom box, and a plurality of first supports are arranged between the mold and the bottom box; an industrial control board is placed in the bottom box; and a wire hole is arranged on the side of the bottom box.

[0007] Furthermore, the movable pressing portion includes a handle, one end of which is hinged to the sixth support; a relay portion is provided in the middle of the handle, and the bottom of the relay portion is fixedly connected to the pressing plate.

[0008] Furthermore, the relay part includes a plurality of pressure blocks, the bottom of the pressure block is fixedly connected to the pressure plate; a connecting plate is fixedly arranged on the top of the pressure block, a first fixed block and a fifth support are fixedly arranged above the connecting plate, and the first fixed block and the fifth support are hingedly connected; the handle passes through the fifth support.

[0009] Furthermore, the plurality of pressing blocks are distributed circumferentially with the center of the connecting plate as the center of the circle.

[0010] Furthermore, the handle is divided into two parts, the first part of the handle is hinged to the sixth support, and the second part of the handle passes through the fifth support; an angle is set between the first part and the second part of the handle.

[0011] Furthermore, the second support is located below the pressing plate, and the upper surface of the mold is flush with the upper surface of the second support; when the pressing plate is in a pressed state, the pressing plate overlaps the second support.

[0012] Furthermore, the height of the third support is higher than that of the second support; a notch is provided on the edge of the pressure plate located on the third support, and a gap is left between the third support and the edge of the pressure plate.

[0013] Furthermore, the pressure plate is provided with a plurality of weight-reducing holes; a plurality of fourth supports are also fixedly provided on the base box, the fourth supports are located on the side of the pressure plate close to the third supports, and a gap is left between the fourth supports and the pressure plate; when the pressure plate is in a pressed state, the height of the fourth supports is higher than that of the pressure plate.

[0014] Furthermore, a seventh support is provided at the bottom of the spring detector, and the seventh support is detachably connected to the bottom box.

[0015] Furthermore, a plurality of anti-skid mounting seats are arranged at the bottom of the bottom box; the material of the anti-skid mounting seats is rubber.

[0016] Compared with the existing technology, the utility model has the following advantages:

[0017] The movable pressing part drives the pressing plate to rotate to open or press the rubber frame on the mold. During the pressing process, the rubber frame is squeezed, and the rubber frame column at the bottom of the rubber frame contacts the spring detector for detection; the data of the spring detector is processed and compared by the industrial control board to determine whether the concentricity of the rubber frame column meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a front view of a backlight source detection fixture provided by an embodiment of the utility model.

[0020] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0021] Figure 3 It is a partial sectional view of the main view.

[0022] Figure 4 yes Figure 3 Enlarged view of part B in the middle.

[0023] Figure 5 This is a top view of the inspection fixture.

[0024] Figure 6 yes Figure 5 Enlarged view of part C in the middle.

[0025] Figure 7 yes Figure 5 Enlarged view of part D in the middle.

[0026] Figure 8 This is the left view of the inspection fixture.

[0027] Fig. 9 It is a working status diagram of the detection fixture.

[0028] Fig.10 It is a schematic diagram of the backlight source rubber frame structure.

[0029] Main component symbols:

[0030] 1. Base box; 11. Anti-slip mounting seat; 12. Wire hole; 2. Mold; 21. First support; 3. Pressing plate; 31. Second support; 32. Third support; 33. Fourth support; 34. Weight reduction hole; 4. Movable pressing part; 41. Pressing block; 42. Connecting plate; 43. Fifth support; 44. First fixed block; 45. Handle; 46. Sixth support; 5. Spring detector; 51. Seventh support; 6. Rubber frame; 61. Rubber frame column. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Example

[0033] Refer to the attached drawings of the specification, such as Figure 1-Figure 10As shown, a backlight detection jig is used to detect the concentricity of the rubber frame columns in the backlight source. Based on this, the backlight detection jig includes a mold 2, in which the rubber frame 6 to be detected is placed. The rubber frame 6 is placed in the mold manually, and a plurality of rubber frame columns 61 are arranged at the bottom of the rubber frame 6. The detection jig also includes a plurality of spring detectors 5. The spring detector 5 is an existing device with an open top and a spring and an Omron proximity switch arranged inside. When the rubber frame column 61 squeezes the spring detector 5, the spring inside is compressed, and whether the concentricity of the rubber frame column 61 meets the standard is determined based on whether the proximity switch is triggered. Therefore, the present application specifically tries to use batch detection of the same batch of rubber frames 6. It is worth noting that, if Figure 3 , Figure 4 As shown, a hole may be reserved at a corresponding position of the mold 2 , and the top of the spring detector 5 extends into the mold 2 . At this time, the rubber frame column 6 in the mold 2 contacts the top of the spring detector 5 .

[0034] During the testing process, the mold 2 needs to be pressed by the pressing plate 3. Figure 8 , Fig. 9 As shown, the pressing plate 3 is located above the mold 2. When the pressing plate 3 is in a pressed state, the bottom of the pressing plate 3 contacts the rubber frame 6. The edges of the pressing plate 3 are respectively provided with a second support 31 and a third support 32. The pressing plate 3 is hinged to the third support 32 so that one side of the pressing plate 3 rotates around the third support 32. The second support 31 is located below the pressing plate 3, and the upper surface of the mold 2 is flush with the upper surface of the second support 31. When the pressing plate 3 is in a pressed state, the pressing plate 3 overlaps the second support 31. In order to leave enough rotation space during the rotation of the pressing plate 3, as shown in FIG. Figure 7 As shown, the third support 32 is higher than the second support 31, a notch is provided at the edge of the pressing plate 3 located at the third support 32, and a gap is left between the third support 32 and the edge of the pressing plate 3. In addition, a plurality of weight-reducing holes 34 are provided on the pressing plate 3.

[0035] like Figure 1 , Figure 2 , Figure 5-Figure 8 As shown, a movable pressing portion 4 is disposed above the pressing plate 3, a sixth support 46 is disposed at one end of the movable pressing portion 4, the bottom of the sixth support 46 is fixed to the end of the pressing plate 3, and one end of the movable pressing portion 4 is hinged to the sixth support 46. Therefore, when the movable pressing portion 4 rotates around the sixth support 46, the movable pressing portion 4 drives the pressing plate 3 to rotate around the third support 32.

[0036] The movable pressing part 4 includes a handle 45, one end of which is hinged to the sixth support 46. A relay part is provided in the middle of the handle 45, and the bottom of the relay part is fixedly connected to the pressing plate 3. By providing the relay part, the problem of the handle 45 being broken in the middle of the handle 45 when the handle 45 drives the pressing plate 3 to move continuously due to the handle 45 being too long can be avoided. Figure 2 As shown, the relay part includes a plurality of pressing blocks 41, and the bottom of the pressing block 41 is fixedly connected to the pressing plate 3. A connecting plate 42 is fixedly arranged on the top of the pressing block 3, and a first fixing block 44 and a fifth support 43 are fixedly arranged above the connecting plate 42, and the first fixing block 44 and the fifth support 43 are hinged. The handle 45 passes through the fifth support 43. At this time, the handle 45 is divided into two parts, the first part of the handle 45 is hinged to the sixth support 46, and the second part of the handle 45 passes through the fifth support 43. An angle is set between the first part and the second part of the handle 45, as shown in FIG. Figure 8 , Fig. 9 As shown. During the movement of the handle 45, one end of the handle 45 rotates around the sixth support 46. A relay portion is provided in the middle of the handle 45, and both the sixth support 46 and the relay portion are fixed to the pressing plate 3, so that the handle 45 is more convenient when lifting or lowering the pressing plate 3. In order to make the relay portion more evenly stressed when connected to the pressing plate 3, a plurality of pressing blocks 41 are circumferentially distributed with the center of the connecting plate 42 as the center of the circle.

[0037] like Figure 1 , Figure 8 As shown, the detection fixture also includes a bottom box 1, the mold 2 and the spring detector 5 are both arranged above the bottom box 1, and a plurality of first supports 21 are arranged between the mold 2 and the bottom box 1 for supporting and fixing the mold 2. The first supports 21 can be connected to the bottom box 1 by bolting. The industrial control board for controlling the spring detector 5 is placed in the bottom box 1, and the side of the bottom box 1 is provided with a wire hole 12, and the wires for connecting the industrial control board can pass through the wire hole. Figure 1 , Figure 5 , Figure 8 As shown, a plurality of fourth supports 33 are fixedly arranged on the bottom box 1, and the fourth supports 33 are located on one side of the pressing plate close to the third supports 32, and a gap is left between the fourth supports 33 and the pressing plate 3. When the pressing plate 3 is in a pressed state, the height of the fourth supports 33 is higher than the pressing plate 3. When the pressing plate 3 is in an open state, the fourth supports 33 block the pressing plate 3, so that the maximum opening angle of the pressing plate 3 is a right angle.

[0038] like Figure 1 As shown, a seventh support 51 is provided at the bottom of the spring detector 5, and the seventh support 51 is detachably connected to the bottom box 1, so that the spring detector 5 can be fixed while adjusting the position of the spring detector 5 on the bottom box 1.

[0039] like Figure 1As shown, a plurality of anti-skid mounting seats 11 are arranged at the bottom of the bottom box 1; the material of the anti-skid mounting seats can be rubber.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A backlight detection fixture, characterized in that: include: A mold, in which a rubber frame to be tested is placed, and a plurality of rubber frame columns are arranged at the bottom of the rubber frame; A spring detector, the spring detector is located below the rubber frame, and the bottom of the rubber frame column contacts the spring detector; A pressing plate, the pressing plate is located above the mold; when the pressing plate is in a pressed state, the bottom of the pressing plate contacts the rubber frame; the edges of the pressing plate are respectively provided with a second support and a third support, and the pressing plate is hinged to the third support; A movable pressing part, the movable pressing part is located above the pressing plate, a sixth support is arranged at one end of the movable pressing part, a bottom of the sixth support is fixed to the end of the pressing plate, and one end of the movable pressing part is hinged to the sixth support; when the movable pressing part is lifted or lowered around the sixth support, the pressing plate is driven to rotate around the third support; The bottom box, the mold and the spring detector are both arranged above the bottom box, a plurality of first supports are arranged between the mold and the bottom box; an industrial control board is placed in the bottom box; and a wire hole is arranged on the side of the bottom box.

2. The backlight source detection fixture according to claim 1, characterized in that: The movable pressing part comprises a handle, one end of which is hinged to the sixth support; a relay part is arranged in the middle of the handle, and the bottom of the relay part is fixedly connected to the pressing plate.

3. The backlight source detection fixture according to claim 2, characterized in that: The relay part includes a plurality of pressing blocks, the bottom of the pressing block is fixedly connected to the pressing plate; a connecting plate is fixedly arranged on the top of the pressing block, a first fixed block and a fifth support are fixedly arranged above the connecting plate, and the first fixed block is hinged to the fifth support; the handle passes through the fifth support.

4. The backlight source detection fixture according to claim 3, characterized in that: The plurality of pressing blocks are distributed circumferentially with the center of the connecting plate as the center of the circle.

5. The backlight source detection fixture according to claim 3, characterized in that: The handle is divided into two parts, the first part of the handle is hinged to the sixth support, and the second part of the handle passes through the fifth support; an angle is set between the first part and the second part of the handle.

6. The backlight source detection fixture according to claim 1, characterized in that: The second support is located below the pressing plate, and the upper surface of the mold is flush with the upper surface of the second support; when the pressing plate is in a pressed state, the pressing plate overlaps the second support.

7. The backlight source detection fixture according to claim 6, characterized in that: The height of the third support is higher than that of the second support; a notch is provided at the edge of the pressure plate located at the third support, and a gap is left between the third support and the edge of the pressure plate.

8. The backlight source detection fixture according to claim 1, characterized in that: The pressing plate is provided with a plurality of weight-reducing holes; A plurality of fourth supports are also fixedly arranged on the bottom box, and the fourth supports are located on one side of the pressure plate close to the third support, with a gap left between the fourth supports and the pressure plate; when the pressure plate is in a pressed state, the height of the fourth supports is higher than that of the pressure plate.

9. The backlight source detection fixture according to claim 1, characterized in that: A seventh support is arranged at the bottom of the spring detector, and the seventh support is detachably connected to the bottom box.

10. The backlight source detection fixture according to claim 1, characterized in that: A plurality of anti-skid mounting seats are arranged at the bottom of the bottom box; the material of the anti-skid mounting seats is rubber.

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