Flying probe testing device

Abstract

The utility model discloses a flying probe testing device which comprises a shell, a supporting bottom plate, a testing assembly and a lifting assembly, the testing assembly and the lifting assembly are both fixed on the supporting bottom plate, and the lifting assembly comprises an upper pressing plate, an air pressure valve, an air pressure controller, a linear bearing and an upper supporting plate. The testing assembly comprises a lower pressing plate, a sensor, a crawler belt, a spring and a lower supporting plate, a lead screw, a first limiting assembly, a drag chain and a linear guide rail are further installed on the supporting bottom plate, and an alarm lamp, a lock catch, a power interface, a safety grating, a wiring panel, a handle, an emergency stop key and a multi-color key are further arranged on the shell. The product has high automatic test capability, can improve the detection efficiency, obtain high detection precision and reduce adverse effects of a test environment, and is suitable for various test scenes and requirements of different tested PCBA boards; accurate control and stable movement of the PCBA board are achieved in the whole testing process, and the PCBA board testing device has great practicability and wide application prospects.

Description

Technical Field

[0001] The utility model relates to the field of PCBA board detection, in particular to a flying probe test device. Background Art

[0002] PCBA board is a commonly used material in the electrical field. At present, the produced PCBA boards need to undergo strict quality tests before they can be put into use. However, at this stage, testing mainly relies on manual operation, and different types of PCBA board tests require different testing equipment, which makes the testing process complicated and inefficient. In addition, the current testing environment is mostly exposed to the air, and impurities in the air may have a certain impact on the test results, which further increases the difficulty and uncertainty of the test.

[0003] How to make a testing device that has both high testing efficiency and can ensure the cleanliness of the testing environment is the purpose of the utility model. Utility Model Content

[0004] The purpose of the utility model is to provide a flying probe test device to solve the problems raised by the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A flying probe test device comprises a shell, a supporting base plate, a test assembly and a lifting assembly, wherein the test assembly and the lifting assembly are both fixed on the supporting base plate, the supporting base plate and the shell form a frame and the test assembly and the lifting assembly are both located in the frame, the lifting assembly comprises an upper pressure plate, an air pressure valve, an air pressure controller, a linear bearing and an upper supporting plate, the air pressure valve is electrically connected to the air pressure controller, the upper pressure plate and the upper supporting plate are both located above the test assembly and the air pressure valve, the air pressure controller and the linear bearing are all located above the upper supporting plate, the test assembly comprises a lower pressure plate, a sensor, a crawler track, a spring and a lower supporting plate, the lower supporting plate is mounted on the supporting base plate through a moving plate, the moving plate is connected to the cylinder, the sensor and the crawler track are both located on one side of the lower supporting plate, the spring is located between the lower pressure plate and the lower supporting plate, a lead screw, a first limit assembly, a drag chain and a linear guide are also installed on the supporting base plate, the straight The linear guide is located below the moving plate, the screw rod is used to drive the lower pressing plate and the first limit assembly is used in conjunction with the lower pressing plate. The lower pressing plate and the upper pressing plate are both provided with ejectors for detecting the PCBA board. The outer shell is also provided with an alarm light, a lock, a power interface, a safety grating, a wiring panel, a handle, an emergency stop button and a multi-color button. The safety grating is located at the top of the outer shell near the front opening. The outer shell can protect the detection process from environmental factors. During the specific test, the operator first manually places the PCBA board on the lower pressing plate, ensures that the placement is stable, and then starts the device. The lower support plate drives the lower pressing plate to shrink to the bottom of the lifting assembly. At the same time, under the control of the air pressure valve, the lifting assembly descends. After descending to a certain height, the lifting assembly stops moving. At this time, the upper and lower pressing plates press the PCBA board tightly to complete the test of the PCBA board together. After the test is completed, the lifting assembly rises, and under the action of the moving plate, the lower support plate extends out, and the operator manually takes out the PCBA board to complete various performance tests of the PCBA board.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: a second limit assembly is further provided above the upper pressing plate to limit the rising height of the upper pressing plate, and the lifting space can be adjusted according to the thickness of the PCBA board.

[0009] In an optional solution, the number of linear bearings is two and the two linear bearings are located at opposite positions at the top of the lifting assembly, which can ensure that the upper pressure plate can always maintain a straight track during movement and reduce friction.

[0010] In an optional solution: a sealing plate with a double-door structure is also provided directly above the wiring panel, and the sealing plate, the supporting bottom plate and the outer shell form a closed structure to protect various components.

[0011] In an optional solution, the number of the multi-color buttons is four and the multi-color buttons are located directly in front of the housing, so that the device can be started, reset, and quickly braked in an emergency.

[0012] In one optional solution: the wiring panel and power interface are located directly behind the housing, facilitating quick access to various cables.

[0013] In an optional solution: the outer shell is made of a transparent glass plate, so that the operator can always observe the information inside the equipment and solve the fault problem in time.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] This product is easy to operate and has a high degree of automated testing capabilities. It can improve detection efficiency, obtain high detection accuracy, and reduce the adverse effects of the test environment. It is suitable for various test scenarios and the needs of different PCBA boards under test. The entire test process achieves precise control and stable movement of the PCBA board, which has great practicality and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the flying probe test device.

[0017] Figure 2 This is the first internal diagram of the flying probe test device.

[0018] Figure 3 This is the second internal diagram of the flying probe test device.

[0019] Notes on figure numbers: 1-alarm light, 2-lock, 3-handle, 4-emergency stop button, 5-multi-color button, 6-upper pressure plate, 7-upper support plate, 8-part to be tested, 9-lower pressure plate, 10-lower support plate, 11-sensor, 12-track, 13-safety grating, 14-linear bearing, 15-sealing plate, 16-air pressure valve, 17-first limit assembly, 18-air pressure controller, 19-second limit assembly, 20-support rod, 21-drag chain, 22-moving plate, 23-support base plate, 24-linear guide, 25-housing. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and embodiments below; in the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the utility model are only used to illustrate the utility model, and are not used to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0021] In one embodiment, Figure 1-Figure 3As shown, a flying probe test device includes a shell 25, a support base plate 23, a test assembly and a lifting assembly, wherein the test assembly and the lifting assembly are both fixed on the support base plate 23, the support base plate 23 and the shell 25 form a frame and the test assembly and the lifting assembly are both located in the frame, the lifting assembly includes an upper pressure plate 6, an air pressure valve 16, an air pressure controller 18, a linear bearing 14 and an upper support plate 7, the upper pressure plate 6 and the upper support plate 7 are both located above the test assembly and the air pressure valve 16, the air pressure controller 18 and the linear bearing 14 are all located above the upper support plate 7, the air pressure valve 16 is electrically connected to the air pressure controller 18, the test assembly includes a lower pressure plate 9, a sensor 11, crawler 12, spring and lower support plate 10, the lower pressure plate 9 and the upper pressure plate 6 are both provided with ejectors for detecting the PCBA board, the ejector of the lower pressure plate 9 is used to detect the back of the PCBA board, and the ejector of the upper pressure plate 6 is used to detect the front of the PCBA board, the lower support plate 10 is installed on the support bottom plate 23 through the moving plate 22, the moving plate 22 is connected to the cylinder, the cylinder transmits the air pressure to the moving plate 22, thereby driving the moving plate 22 to do linear motion, the sensor 11 and crawler 12 are both located on one side of the lower support plate 10, the spring is located between the lower pressure plate 9 and the lower support plate 10, to facilitate the ejection of the ejector on the lower pressure plate 9, the support A screw rod, a first limiting assembly 17, a drag chain 21 and a linear guide 24 are also installed on the support base plate 23. The linear guide 24 is located below the movable plate 22. The screw rod is used to drive the lower pressure plate 9 and the first limiting assembly 17 is used in conjunction with the lower pressure plate 9. The screw rod works to push the lower pressure plate 9 to retract inward until it reaches the first limiting assembly 17. At this time, the lower pressure plate 9 has moved to just below the upper pressure plate 6. The first limiting assembly 17 can prevent the lower pressure plate 9 from further retracting. The housing 25 is also provided with an alarm light 1, a lock 2, a power interface, a safety grating 13, a wiring panel, a handle 3, an emergency stop button 4 and a multi-color button 5. The safety grating 13 Located at the top of the housing 25 near the front opening, during the normal operation of the equipment, when the safety grating 13 detects an object entering, the device will stop working immediately to ensure safety. The test component is used to place the PCBA board and automatically transfer it to the detection position. The lifting component is used to press down so that the PCBA board can be detected. The housing 25 is to protect the test process from interference from environmental factors. The alarm light 1 is a three-color LED light. When the detection equipment encounters an emergency, the alarm light 1 can remind the operator, where red indicates a device operation failure; yellow indicates that the current device is in an idle state; green indicates that the device is operating normally.

[0022] During the specific work, the operator needs to manually place the PCBA board to be tested on the lower pressure plate 9 and press the multi-color button 5 to start the device. The air pressure valve 16 serves as a power source to drive the upper pressure plate 6 to move up and down. After the sensor 11 senses and confirms that the PCBA board has been correctly placed on the ejector pin of the lower pressure plate 9 and is correct, the lower pressure plate 9 shrinks to just below the upper pressure plate 6. After the sensor 11 confirms that it is correct again, the upper support plate 7 drives the upper pressure plate 6 to descend together, and applies pressure to the PCBA board together with the lower pressure plate 9 to ensure that the ejector pin is in good contact. Then, the device is connected to the external equipment and starts to perform various performance tests on the PCBA board. When the detection process is completed, the upper support plate 7 and the upper pressure plate 6 rise back, the lower support plate 10 and the lower pressure plate 9 shrink, and the operator takes out the tested PCBA board, and the entire PCBA board detection process is completed.

[0023] In one embodiment, Figure 2 As shown, a second limiter assembly 19 is also provided above the upper pressing plate 6 to limit the height of the upper pressing plate 6. The lifting space can be adjusted according to the thickness of the PCBA board. Preferably, the second limiter assembly 19 is located directly above the right side of the upper support plate 7, which can play a better role. The air pressure controller 18 sends instructions to the air pressure valve 16, and the air pressure valve 16 receives signals and adjusts the amount of compressed air flowing into the linear bearing 14 according to these signals, so as to control the descending speed of the upper pressing plate 6, and under the limitation of the second limiter assembly 19, the descending height of the upper pressing plate 6 is controlled to ensure that the ejector pins of the upper pressing plate 6 and the lower pressing plate 9 can press the PCBA board. Subsequently, the device is connected to the external test equipment through the wiring panel to test various performance indicators of the PCBA board. After the test work is completed, the air pressure controller 18 receives the corresponding signal, reduces the amount of compressed air flowing into the linear bearing 14, and controls the upper pressing plate 6 to move upward.

[0024] In one embodiment, the number of linear bearings 14 is two and the two linear bearings 14 are located at opposite positions at the top of the lifting assembly, which can ensure that the upper pressing plate 6 can always maintain a straight track during movement and reduce friction.

[0025] In one embodiment, a sealing plate 15 with a double-door structure is provided directly above the wiring panel. The sealing plate 15, the supporting base plate 23 and the outer shell 25 form a closed structure to protect various components. When any internal components fail, the sealing plate 15 with a double-door structure can be opened and closed to facilitate maintenance and replacement.

[0026] In one embodiment, the number of the multi-color buttons 5 is four and the multi-color buttons 5 are located directly in front of the housing 25, which can realize the startup, reset and rapid braking of the device in an emergency situation. The multi-color buttons 5 include two green buttons, one blue button and one red button. The green button is used to ensure the startup of the device, the blue button represents the reset operation, and the red button can realize rapid braking in an emergency situation.

[0027] In one embodiment, the wiring panel and the power interface are located directly behind the housing 25, which facilitates the quick access of various cables, facilitates various connections and keeps the overall neatness and order. A fixed card slot is also provided above the upper pressing plate 6, which can fix the position of the PCBA board.

[0028] In one embodiment, the housing 25 is made of a transparent glass plate, so that the operator can always observe the information inside the device and solve the fault problem in time.

[0029] In one embodiment, the linear guide 24 adopts a heavy-loaded ball linear guide, and the cylinder applies thrust and tension to the movable plate. Under the support and guidance of the heavy-loaded ball linear guide, the lower support plate shrinks to the bottom of the upper support plate in a linear motion.

[0030] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A flying probe test device, comprising a housing, a support base, a test assembly and a lifting assembly, wherein the test assembly and the lifting assembly are both fixed on the support base, the support base and the housing form a frame and the test assembly and the lifting assembly are both located in the frame, characterized in that: The lifting assembly includes an upper pressure plate, an air pressure valve, an air pressure controller, a linear bearing and an upper support plate. The upper pressure plate and the upper support plate are both located above the test assembly and the air pressure valve, the air pressure controller and the linear bearing are both located above the upper support plate. The air pressure valve is electrically connected to the air pressure controller. The test assembly includes a lower pressure plate, a sensor, a track, a spring and a lower support plate. The lower pressure plate and the upper pressure plate are both provided with ejectors for detecting the PCBA board. The lower support plate is mounted on the support base plate through a movable plate. The movable plate is connected to the cylinder. The sensor and the track are both located on one side of the lower support plate. The spring is located between the lower pressure plate and the lower support plate. A screw rod, a first limit assembly, a drag chain and a linear guide are also installed on the support base plate. The linear guide is located below the movable plate. An alarm light, a lock, a power interface, a safety grating, a wiring panel, a handle, an emergency stop button and a multi-color button are also provided on the outer casing. The safety grating is located at the top of the outer casing near the front opening.

2. The flying probe test device according to claim 1, characterized in that: A second limiting assembly is also arranged above the upper pressing plate.

3. The flying probe test device according to claim 1 or 2, characterized in that: The number of the linear bearings is two and the two linear bearings are located at opposite positions at the top of the lifting assembly.

4. The flying probe test device according to claim 1, characterized in that: A sealing plate with a double-door structure is also arranged directly above the wiring panel, and the sealing plate, the supporting bottom plate and the outer shell form a closed structure.

5. The flying probe test device according to claim 1, characterized in that: The wiring panel and power interface are located directly behind the housing.

6. The flying probe test device according to claim 1, characterized in that: The number of the multi-color keys is four and the multi-color keys are located right in front of the housing.

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