A LED and TOV board test system

Abstract

The invention relates to the technical field of LED testing devices, and in particular to an LED, TOV connected board testing system, which solves the shortcomings existing in the prior art and comprises a casing, a control panel is installed on the casing, a bracket is fixed to the top of the casing by bolts, a test board is arranged on the bracket, a plurality of positioning pins are fixedly arranged on the test board, inner grooves and sliding holes are sequentially opened inside the positioning pins, guide rods are welded between the inner walls of the inner grooves, a sliding block is fixedly arranged on one side of the sliding block, and through the arrangement of the positioning pins, the positioning block, the spring and other structures, after the product is placed, the positioning block inside the positioning pin can be adaptively popped out, and the position of the product with error can be automatically adjusted, so that the product can be placed accurately, and the product can also be effectively fixed, the test result is accurate, and the operation is convenient.

Description

Technical Field

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

[0002] LED products are increasingly widely used, and the quality requirements for them are also getting higher and higher. However, the high temperature tolerance of LED products often affects the quality of LED products.

[0003] In the prior art, when testing LED and TOV boards, the positioning pins and product positioning holes have processing errors, which may cause the product position to shift and affect the test results. In addition, since the test equipment is manually operated, it is easy to cause misoperation due to human factors, which poses a safety hazard. Moreover, only one light strip can be tested at a time, which is inefficient and has a low degree of automation. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an LED and TOV board test system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An LED, TOV board test system comprises a housing, a control panel is mounted on the housing, a bracket is fixed to the top of the housing by bolts, a test board is arranged on the bracket, a plurality of positioning pins are fixedly arranged on the test board, inner grooves and sliding holes are sequentially opened inside the positioning pins, a guide rod is welded between the inner walls of the inner groove, a sliding block is movably sleeved outside the guide rod, a positioning block is fixedly arranged on one side of the sliding block, the positioning block is slidably connected to the sliding hole, and the top of the positioning block is inclined;

[0007] A first spring is sleeved on the outside of the guide rod, and two ends of the first spring are fixedly connected to the sliding block and the side wall of the inner groove respectively.

[0008] Preferably, a start button, a power switch, an action button and a reset button are respectively provided on the control panel, and a baffle cover is fixed to the surface of the control panel by screws, the baffle cover is located outside the power switch, a baffle block is slidably provided on the baffle cover, a connecting plate is fixed to one side of the baffle block by screws, a moving block is welded to one side of the connecting plate, a sliding rod is slidably provided on the test plate, a movable block is welded to the bottom of the sliding rod, and the movable block is slidably provided on the top of the moving block.

[0009] Preferably, a guide block is fixed to the bottom of the test plate by screws, a guide hole is opened inside the guide block, the slide rod is embedded in the guide hole, a second spring is sleeved on the outside of the slide rod, and both ends of the second spring are fixedly connected to the guide block and the test plate by buckles.

[0010] Preferably, a slide groove is provided on the top of the moving block, and the movable block is slidably connected to the slide groove.

[0011] Preferably, a rectangular groove is formed on the blocking cover, and the blocking block is slidably connected to the rectangular groove.

[0012] Preferably, a sliding hole is provided inside the test plate, and the sliding rod is slidably connected to the sliding hole.

[0013] A symmetrically arranged electric cylinder is fixedly installed on the top of the test plate, a piston rod is arranged inside the electric cylinder, a sliding seat is fixed to the end of the piston rod by a screw, a limiting groove is provided on one side of the sliding seat, and the sliding seat is slidably arranged on the top of the test plate.

[0014] A slide rail is fixed on the top of the test plate by screws, and the slide seat is slidably connected to the slide rail.

[0015] It also includes a 16-level inversion driver, a MUC main controller module, a 16-channel scanning relay circuit and a communication circuit connected in sequence;

[0016] A programmable DCDC circuit used to provide suitable operating voltage for different LEDs.

[0017] The beneficial effects of the present invention are:

[0018] 1. In the present invention, by setting structures such as positioning pins, positioning blocks, and springs, after the product is placed, the positioning block inside the positioning pin can pop out adaptively, and can automatically adjust the position of the product with error, so that the position of the product can be accurately placed, and the product can be effectively fixed, the test result is accurate, and the operation is convenient.

[0019] 2. In the present invention, by setting structures such as the slide rod, the baffle cover, the electric cylinder and the sliding seat, the baffle will be opened under the push of the slide rod after the product is placed. After turning on the power switch, the electric cylinder will move to lock the position of the product, avoiding misoperation and eliminating safety hazards.

[0020] 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

[0021] Figure 1 This is a structural schematic diagram of an LED and TOV board-to-board testing system proposed by the present invention;

[0022] Figure 2 This is a front view of an LED and TOV board-to-board testing system proposed by the present invention;

[0023] Figure 3 This is an enlarged view of the LED and TOV board-to-board testing system proposed by the present invention;

[0024] Figure 4 This is an enlarged view of the LED and TOV board-to-board testing system proposed by the present invention;

[0025] Figure 5 A circuit diagram of a 16-level inversion driver proposed by the present invention;

[0026] Figure 6 A circuit diagram of the MCU main controller module proposed by the present invention;

[0027] Figure 7 The 16-channel scanning relay circuit diagram proposed by the present invention;

[0028] Figure 8 A schematic diagram of a communication circuit proposed by the present invention;

[0029] Fig. 9 This is the program-controlled DCDC circuit diagram proposed by the present invention.

[0030] In the figure: 1 housing, 2 control panel, 3 bracket, 4 test board, 41 electric cylinder, 42 sliding seat, 43 limit groove, 5 positioning pin, 51 inner groove, 52 positioning block, 53 sliding hole, 54 slider, 55 first spring, 56 guide rod, 6 guide block, 7 slide rod, 8 second spring, 9 moving block, 10 slide groove, 11 connecting plate, 12 block, 13 block cover, 14 rectangular groove, 15 power switch. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1-9 , an LED, TOV board test system, including a housing 1, a control panel 2 is installed on the housing 1, a bracket 3 is fixed to the top of the housing 1 by bolts, a test board 4 is arranged on the bracket 3, a plurality of positioning pins 5 are fixedly arranged on the test board 4, an inner groove 51 and a sliding hole 53 are sequentially opened inside the positioning pin 5, a guide rod 56 is welded between the inner walls of the inner groove 51, a sliding block 54 is movably sleeved outside the guide rod 56, a positioning block 52 is fixedly arranged on one side of the sliding block 54, the positioning block 52 is slidably connected to the sliding hole 53, and the top of the positioning block 52 is inclined;

[0033] The guide rod 56 is sleeved with a first spring 55 , and two ends of the first spring 55 are fixedly connected to the slider 54 and the side wall of the inner groove 51 , respectively.

[0034] Among them, through the setting of the positioning pin 5, the positioning block 52, the spring and other structures, after the product is placed, the positioning block 52 inside the positioning pin 5 can be adaptively popped out, and can automatically adjust the position of the product with error, so that the position of the product can be accurately placed, and the product can also be effectively fixed, the test result is accurate, and the operation is convenient. Through the setting of the slide bar 7, the baffle 13, the electric cylinder 41 and the sliding seat 42 and other structures, after the product is placed, the baffle 12 will be opened under the push of the slide bar 7. After turning on the power switch 15, the electric cylinder 41 will move to lock the position of the product to avoid misoperation and eliminate safety hazards. It integrates multiple electrical test items of LED and supports multi-board testing. Compared with traditional test equipment, the test efficiency is greatly improved and manpower is saved.

[0035] A start button, a power switch 15, an action button and a reset button are respectively provided on the control panel 2, and a baffle 13 is fixed to the surface of the control panel 2 by screws, the baffle 13 is located outside the power switch 15, a baffle 12 is slidably provided on the baffle 13, a connecting plate 11 is fixed to one side of the baffle 12 by screws, a moving block 9 is welded to one side of the connecting plate 11, a sliding rod 7 is slidably provided on the test board 4, a movable block is welded to the bottom of the sliding rod 7, and the movable block is slidably provided on the top of the moving block 9.

[0036] A guide block 6 is fixed to the bottom of the test board 4 by screws, a guide hole is opened inside the guide block 6, a slide rod 7 is embedded in the guide hole, a second spring 8 is sleeved on the outside of the slide rod 7, and both ends of the second spring 8 are fixedly connected to the guide block 6 and the test board 4 through buckles.

[0037] A slide groove 10 is provided on the top of the moving block 9 , and the movable block is slidably connected to the slide groove 10 .

[0038] A rectangular groove 14 is formed on the blocking cover 13 , and the blocking block 12 is slidably connected to the rectangular groove 14 .

[0039] A sliding hole 53 is provided inside the test plate 4 , and the sliding rod 7 is slidably connected to the sliding hole 53 .

[0040] A symmetrically arranged electric cylinder 41 is fixedly installed on the top of the test board 4, a piston rod is arranged inside the electric cylinder 41, a sliding seat 42 is fixed to the end of the piston rod by screws, a limiting groove 43 is provided on one side of the sliding seat 42, and the sliding seat 42 is slidably arranged on the top of the test board 4.

[0041] A slide rail is fixed to the top of the test board 4 by screws, and the slide seat 42 is slidably connected to the slide rail.

[0042] It also includes a 16-level inversion driver, a MUC main controller module, a 16-channel scanning relay circuit and a communication circuit connected in sequence;

[0043] A programmable DCDC circuit used to provide suitable operating voltage for different LEDs.

[0044] In this embodiment, the testing process is as follows: operate the buttons on 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;

[0045] When placing the product, each positioning hole of the product is aligned with the positioning pin 5 on the test board 4. After the product is placed downward, the positioning hole squeezes the positioning block 52 on the positioning pin 5, so that the positioning block 52 is received in the inner groove 51. When the product is placed, the positioning block 52 automatically pops out under the push of the spring, and slides adaptively according to the aperture error of the positioning hole, that is, the positioning block 52 slides out and presses on the inner wall of the positioning hole, so as to fine-tune the position of the product and fix the product.

[0046] Furthermore, after the product is placed, the product presses the slide bar 7 to slide downward, and the slide bar 7 pushes the moving block 9, the connecting plate 11 and the stopper 12 to slide along the inclined rectangular groove 14. During the sliding process, the movable block at the end of the slide bar 7 can slide along the slide groove 10 on the moving block 9 adaptively, and the mechanisms will not get stuck. When the product is placed, the stopper 12 slides open, and the power switch 15 is exposed in the rectangular groove 14. Only then can the personnel press the power switch 15 to start the device and start the test.

[0047] In addition, after the power switch 15 is turned on, the switch signal of the power switch 15 is output to the internal controller, and the power is transmitted to the electric cylinder 41 through the controller. The piston rod of the electric cylinder 41 extends to push the sliding seat 42 to slide, and the sliding seat 42 moves to the top of the product, and part of the product is located in the limit groove 43, so as to prevent personnel from removing the product during the test;

[0048] Among them, after the test is completed, when the personnel turns off the power switch 15, the electric cylinder 41 will pull the sliding seat 42 to slide and reset, and the personnel can remove the product. At this time, the sliding rod 7 slides and resets under the elastic force of the second spring 8, and the block 12 blocks the front side of the power switch 15 again to play a protective role.

[0049] 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. A LED and TOV board test system, comprising a housing (1), characterized in that: A control panel (2) is mounted on the casing (1), a bracket (3) is fixed to the top of the casing (1) by bolts, a test plate (4) is arranged on the bracket (3), a plurality of positioning pins (5) are fixedly arranged on the test plate (4), an inner groove (51) and a sliding hole (53) are sequentially opened inside the positioning pins (5), a guide rod (56) is welded between the inner walls of the inner groove (51), a sliding block (54) is movably sleeved outside the guide rod (56), a positioning block (52) is fixedly arranged on one side of the sliding block (54), the positioning block (52) is slidably connected to the sliding hole (53), and the top of the positioning block (52) is inclined; A first spring (55) is sleeved on the outside of the guide rod (56), and two ends of the first spring (55) are respectively fixedly connected to the slider (54) and the side wall of the inner groove (51); The control panel (2) is provided with a start button, a power switch (15), an action button and a reset button, and a cover (13) is fixed to the surface of the control panel (2) by screws, the cover (13) is located outside the power switch (15), a block (12) is slidably provided on the cover (13), a connecting plate (11) is fixed to one side of the block (12) by screws, a moving block (9) is welded to one side of the connecting plate (11), a sliding rod (7) is slidably provided on the test board (4), a movable block is welded to the bottom of the sliding rod (7), and the movable block is slidably provided on the top of the moving block (9); A guide block (6) is fixed to the bottom of the test plate (4) by screws, a guide hole is provided inside the guide block (6), the slide bar (7) is embedded in the guide hole, a second spring (8) is sleeved on the outside of the slide bar (7), and both ends of the second spring (8) are fixedly connected to the guide block (6) and the test plate (4) by buckles; A slide groove (10) is provided on the top of the movable block (9), and the movable block is slidably connected to the slide groove (10); The blocking cover (13) is provided with a rectangular groove (14), and the blocking block (12) is slidably connected to the rectangular groove (14); A sliding hole (53) is provided inside the test plate (4), and the sliding rod (7) is slidably connected to the sliding hole (53).

2. The LED and TOV board test system according to claim 1, characterized in that: A symmetrically arranged electric cylinder (41) is fixedly mounted on the top of the test plate (4), a piston rod is arranged inside the electric cylinder (41), a sliding seat (42) is fixed to the end of the piston rod by means of screws, a limiting groove (43) is provided on one side of the sliding seat (42), and the sliding seat (42) is slidably arranged on the top of the test plate (4).

3. The LED and TOV board test system according to claim 2, characterized in that: A slide rail is fixed to the top of the test plate (4) by means of screws, and the slide seat (42) is slidably connected to the slide rail.

4. The LED and TOV board test system according to claim 3, characterized in that: It also includes a 16-level inversion driver, a MUC main controller module, a 16-channel scanning relay circuit and a communication circuit connected in sequence; A programmable DCDC circuit used to provide suitable operating voltage for different LEDs.

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