PCBA (printed circuit board assembly) ICT (information communication technology) automatic testing device

Abstract

The utility model relates to an ICT automatic testing device for a PCBA board. The ICT automatic testing device comprises a code reading connection table, an ICT online testing machine table and an NG cache machine table which are sequentially arranged along an assembly line. According to the utility model, automatic board feeding and discharging, automatic code reading and automatic storage of defective products can be realized, full automation of the whole testing process is realized, the working efficiency is effectively improved, manpower is reduced, the quality is improved, and personal safety accidents during testing are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ICT automated testing, and in particular to an ICT automated testing device for a PCBA board. Background Art

[0002] ICT (In Circuit Tester) is an online instrument used by factories to detect components and circuit defects on PCBA. The tester takes the board on the assembly line, manually reads the PCBA barcode, and then manually puts it in the test machine fixture positioning position. After the PCB board is in place, press the machine test button software to start the test. After the test is completed, the machine cylinder rises, and the operator takes out the PCBA board for the next process. In the above traditional operation method, each tester detection requires manual action to scan the barcode, take and place the PCBA board. At the same time, the operator is prone to fatigue due to long-term work and easily puts defective products into the later process as good products. It is easy to fatigue, and manual operation paralysis and carelessness can easily lead to hidden dangers of personal safety accidents; it is inefficient, costly, and has high labor costs. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a PCBA board ICT automated testing device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A PCBA board ICT automatic testing device, comprising a code reading docking station, an ICT online testing machine and an NG buffer machine arranged in sequence along the production line;

[0006] The code reading docking station is provided with a code reading conveying line and a code reading component inside, and the code reading component is used to read the information of the PCBA board on the conveyor belt;

[0007] The ICT online test machine is provided with a liftable test conveyor line, the input end of the test conveyor line is connected with the output end of the code reading conveyor line, the upper part of the test conveyor line is provided with a liftable upper test fixture, and the lower part of the test conveyor line is provided with a fixture table. After the PCBA board to be tested is delivered to the position, the test conveyor line is lowered to the position, the PCBA board to be tested is positioned on the fixture table, and the upper test fixture is lowered, so as to perform ICT test on the PCBA board on the fixture table;

[0008] Furthermore, the NG cache machine is provided with a cache conveyor line, the input end of the cache conveyor line is connected with the output end of the test conveyor line, the middle part of the cache conveyor line is a cache area, a liftable cache rack is provided on the cache area, and multiple storage layers for placing PCBA boards are arranged at intervals in the vertical direction on the cache rack, and products that fail the ICT test are cached on the storage layers of the cache rack.

[0009] Furthermore, there are two sets of code reading components, one set of code reading components is located above the code reading conveying line, and the other set of code reading components is located below the code reading conveying line.

[0010] Furthermore, the code reading assembly includes an XY axis moving platform and a code reading gun. The code reading gun is connected to the XY axis moving platform, and the XY axis moving platform drives the code reading gun to move in a horizontal plane.

[0011] Furthermore, a plurality of guide rods spaced apart in the vertical direction are provided on both sides of the cache rack, and a support pin for forming a storage layer is fixed on each guide rod; a plurality of or more groups of conveying roller groups spaced apart are provided on both sides of the cache area, and each guide rod and conveying roller group on the same side are staggered along the conveying direction of the test conveyor line.

[0012] Furthermore, the cache rack is driven to rise and fall by a screw rod and nut pair.

[0013] Furthermore, a retractable test position stopper is provided on the test conveyor line.

[0014] Furthermore, the test conveyor line is arranged on a lifting platform, and the lifting platform is driven to rise and fall by a conveyor line cylinder.

[0015] The utility model adopts the above technical solution, and has the beneficial effects of: the utility model can realize automatic board entry and exit and automatic code reading, automatic storage of defective products, and full automation of the entire testing process, effectively improving work efficiency, reducing manpower, improving quality, and avoiding personal safety accidents during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific implementations:

[0017] Figure 1 It is a layout diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of a code reading docking station;

[0019] Figure 3 It is a schematic diagram of the internal structure of the code reading docking station;

[0020] Figure 4 This is a schematic diagram of an ICT online testing machine;

[0021] Figure 5 This is a schematic diagram of the internal structure of the ICT online test machine;

[0022] Figure 6 This is a schematic diagram of another perspective of the internal structure of the ICT online test machine;

[0023] Figure 7 This is a schematic diagram of the NG cache machine;

[0024] Figure 8 This is a schematic diagram of the internal structure of the NG buffer machine. DETAILED DESCRIPTION

[0025] like Figure 1-8 As shown, the utility model is a PCBA board ICT automatic test device, including a code reading docking station 1, an ICT online test machine 2 and an NG buffer machine 3 arranged in sequence along the production line, and the entire automatic test device is controlled and operated by a PLC.

[0026] A code reading conveyor line 11 and a code reading component 12 are provided inside the code reading docking station 1. The code reading component 12 is used to read the information of the PCBA board on the conveyor belt. There are two sets of code reading components 12, one set of code reading components 12 is located above the code reading conveyor line 11, and the other set of code reading components 12 is located below the code reading conveyor line 11, which can realize double-sided code reading and upper and lower single-sided code reading switching.

[0027] The code reading component 12 adopts photographic code reading. Specifically, the code reading component 12 includes an XY axis moving platform 121 and a code reading gun 122. The XY axis moving platform 121 is a common two-way moving platform in the prior art. The code reading gun 122 is connected to the XY axis moving platform 121, and the XY axis moving platform 121 drives the code reading gun 122 to move in the horizontal plane. According to the barcode position of the PCBA board, the code reading gun 122 can automatically move along the X / Y axis, and the read information is transmitted to the central control system (SFIS system). In addition, the code reading docking station 1 has a protection function, that is, when the ICT online test machine 2 is under ICT testing, the PCBA board is not allowed to flow from the code reading conveyor line 11 into the ICT online test machine 2.

[0028] The ICT online test machine 2 is provided with a test conveyor line 21, which is arranged on a lifting platform, and the lifting platform is driven up and down by the conveyor line cylinder, thereby driving the test conveyor line 21 to rise and fall. The input end of the test conveyor line 21 is connected with the output end of the code reading conveyor line 11, and a liftable upper test fixture 22 is provided above the test conveyor line 21, and a fixture table 23 is provided below the test conveyor line 21. The upper test fixture 22 and the test conveyor line 21 are driven up and down by their own cylinders.

[0029] After code reading, the PCBA board enters the test conveyor line 21 of the ICT online test machine 2 from the code reading conveyor line 11. The test conveyor line 21 is provided with a retractable test position block 211, which cooperates with the position photoelectric sensor. When the PCBA board is delivered to the right position, the test position block 211 extends to block the PCBA board, and the test conveyor line 21 descends. The PCBA board is positioned on the fixture table 23 (the fixture table 23 has a structure for positioning the PCBA board, including a positioning pin and a block), and then the upper test fixture descends, so as to perform an ICT test on the PCBA board on the fixture table 23 (the test process is the same as the prior art, and no further elaboration is made), and the test results are transmitted to the central control system. After the test is completed, the test conveyor line 21 rises and takes the PCBA board on the fixture table 23 away.

[0030] The NG buffer machine 3 is provided with a buffer conveyor line 31, the input end of the buffer conveyor line 31 is connected with the output end of the test conveyor line 21, and the PCBA board that has completed the ICT test enters the buffer conveyor line 31 of the NG buffer machine 3 from the test conveyor line 21. The middle part of the buffer conveyor line 31 is a buffer area, and a buffer rack 32 is provided on the buffer area. The buffer rack 32 is driven to rise and fall by a screw nut pair 33. Multiple layers of storage layers for placing PCBA boards are arranged at intervals along the vertical direction on the buffer rack 32. Products that fail the ICT test are cached on the storage layer of the buffer rack 32, and PCBA boards that pass the test flow into the next process.

[0031] Among them, multiple guide rods 321 arranged at intervals along the vertical direction are respectively provided on both sides of the cache rack 32, and each guide rod 321 is fixed with a support pin 322 for forming a storage layer; multiple or more groups of conveying roller groups 34 arranged at intervals are respectively provided on both sides of the cache area, and each guide rod 321 and the conveying roller group on the same side are staggered along the conveying direction of the test conveyor line 21.

[0032] The buffer conveyor line 31 is equipped with a photoelectric automatic sensor. After the unqualified boards are detected, the buffer conveyor line 31 and the conveying roller group 34 stop running, and the buffer rack 32 rises one layer to store the unqualified PCBA boards on the buffer layer. In this embodiment, the buffer rack 32 can store 8 large PCBA boards; each layer is at least 5 cm apart; after storing 7 boards, an audible and visual alarm is triggered.

[0033] The above describes the specific implementation of the present invention, but those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this implementation without departing from the principle and essence of the present invention, but these changes and modifications are all within the scope of protection of the present invention.

Claims

1. A PCBA board ICT automated testing device, Features: Including code reading docking station, ICT online testing machine and NG buffer machine set up in sequence along the production line; The code reading docking station is provided with a code reading conveying line and a code reading component inside, and the code reading component is used to read the information of the PCBA board on the conveyor belt; The ICT online test machine is provided with a liftable test conveyor line, the input end of the test conveyor line is connected with the output end of the code reading conveyor line, the upper part of the test conveyor line is provided with a liftable upper test fixture, and the lower part of the test conveyor line is provided with a fixture table. After the PCBA board to be tested is delivered to the position, the test conveyor line is lowered to the position, the PCBA board to be tested is positioned on the fixture table, and the upper test fixture is lowered, so as to perform ICT test on the PCBA board on the fixture table; The NG cache machine is provided with a cache conveyor line, the input end of the cache conveyor line is connected with the output end of the test conveyor line, the middle part of the cache conveyor line is a cache area, a liftable cache rack is provided on the cache area, and multiple storage layers for placing PCBA boards are arranged at intervals in the vertical direction on the cache rack, and products that fail the ICT test are cached on the storage layers of the cache rack.

2. A PCBA board ICT automated testing device according to claim 1, Features: There are two sets of code reading components, one set of code reading components is located above the code reading conveying line, and the other set of code reading components is located below the code reading conveying line.

3. A PCBA board ICT automated testing device according to claim 1 or 2, Features: The code reading assembly includes an XY axis moving platform and a code reading gun. The code reading gun is connected to the XY axis moving platform, and the XY axis moving platform drives the code reading gun to move in a horizontal plane.

4. A PCBA board ICT automated testing device according to claim 1, Features: Both sides of the cache rack are provided with a plurality of guide rods arranged at intervals in the vertical direction, and each guide rod is fixed with a support pin for forming a storage layer; both sides of the cache area are provided with a plurality of or more groups of conveying roller groups arranged at intervals, and each guide rod and conveying roller group on the same side are staggered along the conveying direction of the test conveyor line.

5. A PCBA board ICT automated testing device according to claim 1, Features: The cache rack is driven to rise and fall by a screw rod and nut pair.

6. A PCBA board ICT automated testing device according to claim 1, Features: The test conveying line is provided with a retractable test position stopper.

7. A PCBA board ICT automated testing device according to claim 1, Features: The test conveyor line is arranged on a lifting platform, and the lifting platform is driven to rise and fall by a conveyor line cylinder.

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