LED room temperature continuous board test system

Abstract

The present invention relates to the field of LED testing technology, and in particular to an LED room temperature continuous board testing system, which solves the shortcomings existing in the prior art and comprises a tester and a test chassis, wherein the tester is fixedly provided with a control panel, and a cylinder is fixedly provided on the tester by bolts, a piston rod is arranged inside the cylinder, and the end of the piston rod is fixedly connected to a fixture platform by screws, a rotating pressing plate is rotatably installed on the fixture platform, and symmetrically arranged positioning grooves are provided at the bottom of the rotating pressing plate, and when placing a product, the product can be positioned between two pre-positioning plates by arranging structures such as a pre-positioning plate and a positioning groove, and after closing the rotating pressing plate, the positioning groove of the rotating pressing plate can cooperate with the pre-positioning plate to ensure that the position of the rotating pressing plate is accurate, and the product can be accurately fixed between the side edges of the rotating pressing plate, thereby avoiding scratches or breakages of the product.

Description

Technical Field

[0001] The invention relates to the technical field of LED testing, and in particular to an LED normal temperature continuous board testing system. Background Art

[0002] Traditional test equipment is a single-item test operation with a narrow voltage and current range and poor versatility. It is also a single PCS operation. The room temperature continuous board LB test equipment consists of a test host (integrated constant current drive, VF test, DVF test, Zener test), a test platform, a computer and a test system. It can test low current VF, high current VF, OPEN / SHORT test, and mixed short circuit test. In addition, the test equipment on the market has low accuracy in product detection, and the pressure plate is prone to collision with the test product, causing scratches or breaks. When the product is not placed on the fixture platform, the control panel is always exposed to the outside, which is prone to malfunction. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an LED room temperature continuous board testing system.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The LED room temperature continuous board test system comprises a tester and a test chassis, wherein a control panel is fixedly installed on the tester, a cylinder is fixedly installed on the tester by bolts, a piston rod is arranged inside the cylinder, the end of the piston rod is fixedly connected to a fixture platform by screws, a rotating pressure plate is rotatably installed on the fixture platform, a symmetrically arranged positioning groove is opened at the bottom of the rotating pressure plate, a symmetrically arranged pre-positioning plate is slidably arranged on the fixture platform, a taper block is fixedly arranged on the top of the pre-positioning plate, connecting plates are fixedly arranged on both sides of the pre-positioning plate, a symmetrically arranged guide rod is welded to the bottom of the fixture platform, the connecting plate is movably sleeved on the outside of the guide rod, a spring is sleeved on the outside of the guide rod, the two ends of the spring are fixedly connected to the fixture platform and the connecting plate by buckles, and a limiting block is welded to the bottom of the guide rod.

[0006] Preferably, a slider is slidably provided on one side of the rotating pressure plate, a lifting rod is movably hinged on the slider, a sliding rod is welded at the bottom of the lifting rod, and the sliding rod is slidably provided on the tester;

[0007] A connecting rod is movably hinged on one side of the lifting rod, and a shield is movably hinged on the other end of the connecting rod. The shield is movably connected to one side of the tester through a pin shaft, and the shield is located on one side of the control panel.

[0008] Preferably, sliding grooves are provided on both sides of the rotating pressure plate, and the sliding block is slidably connected to the sliding grooves.

[0009] Preferably, a groove is provided inside the tester, a guide block is welded on the inner wall of the groove, a guide hole is provided inside the guide block, and the slide rod is embedded in the guide hole.

[0010] Preferably, the positioning groove and the taper block have the same shape, and the pre-positioning plate and the taper block are an integrally formed structure.

[0011] Preferably, a start button, a power switch, a reset button and an action button are provided on the control panel.

[0012] Preferably, it also includes a power supply voltage sampling and B power supply following A power supply control circuit, a first communication circuit, a second communication circuit, an IIC communication voltage acquisition circuit, a power supply A and B reference generation conversion circuit and a MUC main control circuit connected in sequence.

[0013] The beneficial effects of the present invention are:

[0014] 1. In the present invention, by setting up structures such as pre-positioning plates and positioning grooves, when placing a product, the product can be positioned between two pre-positioning plates. After closing the rotating pressing plate, the positioning groove of the rotating pressing plate can cooperate with the pre-positioning plate to ensure that the position of the rotating pressing plate is accurate, and the product can be accurately fixed between the side edges of the rotating pressing plate to avoid scratches or breaks of the product.

[0015] 2. In the present invention, by setting structures such as the lifting rod, the connecting rod and the shield, when the rotating pressure plate is opened, the product is not placed and the shield will block the control panel, thereby avoiding malfunction and improving the safety of the device.

[0016] 3. The present invention integrates multiple electrical test items of LEDs and supports multi-board testing. Compared with traditional testing equipment, the testing efficiency is greatly improved and manpower is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the tester proposed by the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the test chassis proposed by the present invention;

[0019] Figure 3 A test diagram of the tester proposed by the present invention without the protective mechanism;

[0020] Figure 4 A test diagram of the tester proposed by the present invention;

[0021] Figure 5 This is an enlarged view of the LED room temperature continuous board testing system proposed by the present invention;

[0022] Figure 6It is a front view of the rotating pressing plate and the fixture platform proposed by the present invention;

[0023] Figure 7 This is a schematic diagram of the power supply voltage sampling and B power supply following A power supply control circuit proposed by the present invention;

[0024] Figure 8 A schematic diagram of a first communication circuit proposed by the present invention;

[0025] Fig. 9 A schematic diagram of a second communication circuit proposed by the present invention;

[0026] Fig.10 This is a schematic diagram of the IIC communication voltage collection circuit proposed by the present invention;

[0027] Fig.11 The power supply A and B reference generation conversion circuit proposed by the present invention;

[0028] Fig.12 This is the MCU main control circuit diagram proposed by the present invention.

[0029] In the figure: 1 tester, 2 control panel, 3 rotating pressure plate, 31 slide groove, 4 fixture platform, 5 fixed seat, 6 cylinder, 7 test chassis, 8 connecting rod, 9 lifting rod, 10 groove, 11 slide bar, 12 guide block, 13 baffle, 14 pre-positioning plate, 15 guide rod, 16 connecting plate, 17 spring, 18 limit block, 19 positioning groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Reference Figure 1-11 The LED room temperature continuous board test system includes a tester 1 and a test chassis 7. A control panel 2 is fixedly installed on the tester 1. A cylinder 6 is fixedly installed on the tester 1 by bolts. A piston rod is arranged inside the cylinder 6. The end of the piston rod is fixedly connected to a fixture platform 4 by screws. A rotating pressure plate 3 is rotatably installed on the fixture platform 4. A symmetrically arranged positioning groove 19 is opened at the bottom of the rotating pressure plate 3. A symmetrically arranged pre-positioning plate 14 is slidably arranged on the fixture platform 4. A taper block is fixedly arranged on the top of the pre-positioning plate 14. Connecting plates 16 are fixed on both sides of the pre-positioning plate 14. A symmetrically arranged guide rod 15 is welded to the bottom of the fixture platform 4. The connecting plate 16 is movably sleeved on the outside of the guide rod 15. A spring 17 is sleeved on the outside of the guide rod 15. The two ends of the spring 17 are fixedly connected to the fixture platform 4 and the connecting plate 16 by buckles, and a limited position block 18 is welded to the bottom of the guide rod 15.

[0032] Among them, through the setting of structures such as the pre-positioning plate 14 and the positioning groove 19, when placing the product, the product can be positioned between the two pre-positioning plates 14. After closing the rotating pressure plate 3, the positioning groove 19 of the rotating pressure plate 3 can cooperate with the pre-positioning plate 14 to ensure that the position of the rotating pressure plate 3 is accurate, and the product can be accurately fixed between the sides of the rotating pressure plate 3 to avoid scratches or breakage of the product. Through the setting of structures such as the lifting rod 9, the connecting rod 8 and the blocking cover 13, when the rotating pressure plate 3 is opened, the product is not placed, and the blocking cover 13 will block the control panel 2, thereby avoiding misoperation and improving the safety of the device. It integrates multiple electrical test items of LED and supports multi-connected board testing. Compared with traditional test equipment, the test efficiency is greatly improved and manpower is saved.

[0033] A sliding block is slidably provided on one side of the rotating pressing plate 3, a lifting rod 9 is movably hinged on the sliding block, a sliding bar 11 is welded to the bottom of the lifting rod 9, and the sliding bar 11 is slidably provided on the tester 1;

[0034] A connecting rod 8 is movably hinged on one side of the lifting rod 9 , and a shield 13 is movably hinged on the other end of the connecting rod 8 . The shield 13 is movably connected to one side of the tester 1 through a pin shaft, and the shield 13 is located on one side of the control panel 2 .

[0035] Slide grooves 31 are provided on both sides of the rotating pressing plate 3 , and the sliding blocks are slidably connected to the slide grooves 31 .

[0036] A groove 10 is provided inside the tester 1 , a guide block 12 is welded on the inner wall of the groove 10 , a guide hole is provided inside the guide block 12 , and a slide bar 11 is embedded in the guide hole.

[0037] The positioning groove 19 has the same shape as the taper block, and the pre-positioning plate 14 and the taper block are an integrally formed structure.

[0038] The control panel 2 is provided with a start button, a power switch, a reset button and an action button.

[0039] It includes a power supply voltage sampling and B power supply following A power supply control circuit, a first communication circuit, a second communication circuit, an IIC communication voltage acquisition circuit, a power supply A and B reference generation conversion circuit and a MUC main control circuit which are connected in sequence.

[0040] The specific implementation process of the present invention is as follows: the process during testing is as follows: operate each button of the control panel 2, select the program, fill in the work order, connect the product, execute the learning function, press the start button on the online machine panel, enter the normal test mode, the system automatically completes all test items, automatically saves data in the specified path, the product automatically flows out, and an alarm is issued when NG is pending confirmation, and the test is completed;

[0041] During operation, the product is placed on the fixture platform 4. At this time, the product is located between the two pre-positioning plates 14 and is positioned by the two pre-positioning plates 14. Then, the personnel operate the rotating pressing plate 3 to rotate and close, and press on the product. After the rotating pressing plate 3 rotates, the positioning groove 19 first cooperates with the taper block on the pre-positioning plate 14, and the taper block is embedded in the positioning groove 19, so that the position of the rotating pressing plate 3 is accurate. After the rotating pressing plate 3 continues to move, it presses the pre-positioning plate 14 and slides downward. Finally, the rotating pressing plate 3 presses and fixes the product, and the two sides of the product are in close contact with the side edges of the rotating pressing plate 3.

[0042] In addition, during the rotation of the rotating pressure plate 3, the slider is also used to drive the lifting rod 9 to slide downward. After the lifting rod 9 causes the connecting rod 8 to rotate, the other end of the connecting rod 8 pushes the baffle 13 on one side to rotate around its fulcrum on the tester 1, thereby exposing the control panel 2 to the outside. At this time, the rotating pressure plate 3 has positioned and pressed the product, and personnel can operate the controller panel 2 to perform testing operations.

[0043] 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 technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An LED room temperature continuous board test system, comprising a tester (1) and a test chassis (7), wherein a control panel (2) is fixedly mounted on the tester (1), a cylinder (6) is fixedly mounted on the tester (1) by bolts, a piston rod is arranged inside the cylinder (6), the end of the piston rod is fixedly connected to a fixture platform (4) by screws, a rotating pressure plate (3) is rotatably mounted on the fixture platform (4), and the characteristics are as follows: The bottom of the rotating pressure plate (3) is provided with symmetrically arranged positioning grooves (19); the jig platform (4) is slidably provided with symmetrically arranged pre-positioning plates (14); a taper block is fixedly provided on the top of the pre-positioning plates (14); connecting plates (16) are fixedly provided on both sides of the pre-positioning plates (14); a symmetrically arranged guide rod (15) is welded to the bottom of the jig platform (4); the connecting plates (16) are movably sleeved on the outside of the guide rod (15); a spring (17) is sleeved on the outside of the guide rod (15); the two ends of the spring (17) are respectively fixedly connected to the jig platform (4) and the connecting plate (16) by buckles; and a limiting block (18) is welded to the bottom of the guide rod (15); A slider is slidably arranged on one side of the rotating pressure plate (3), a lifting rod (9) is movably hinged on the slider, a sliding rod (11) is welded to the bottom of the lifting rod (9), and the sliding rod (11) is slidably arranged on the tester (1); A connecting rod (8) is movably hinged on one side of the lifting rod (9), a shield (13) is movably hinged on the other end of the connecting rod (8), the shield (13) is movably connected to one side of the tester (1) via a pin shaft, and the shield (13) is located on one side of the control panel (2); The positioning groove (19) has the same shape as the taper block, and the pre-positioning plate (14) and the taper block are an integrally formed structure, so that the taper block is embedded in the positioning groove (19) when pressed downward.

2. The LED room temperature continuous board test system according to claim 1, characterized in that: Slide grooves (31) are provided on both sides of the rotating pressure plate (3), and the sliding block is slidably connected to the slide grooves (31).

3. The LED room temperature continuous board test system according to claim 2, characterized in that: The tester (1) is provided with a groove (10) inside, a guide block (12) is welded on the inner wall of the groove (10), a guide hole is provided inside the guide block (12), and the slide rod (11) is embedded inside the guide hole.

4. The LED room temperature continuous board test system according to claim 1, characterized in that: The control panel (2) is provided with a start button, a power switch, a reset button and an action button.

5. The LED room temperature continuous board test system according to claim 1, characterized in that: It also includes a power supply voltage sampling and B power supply following A power supply control circuit, a first communication circuit, a second communication circuit, an IIC communication voltage acquisition circuit, a power supply A and B reference generation conversion circuit and a MUC main control circuit which are connected in sequence.

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