Automatic electrical testing equipment for circuit board processing

Abstract

The invention discloses an automatic electrical testing device for circuit board processing, and the device comprises a rack assembly, a workbench assembly which is fixedly connected to the top of the rack assembly, a testing assembly which is fixedly connected to the rear side of the top of the rack assembly, and a circuit board body which is arranged at the top of the workbench assembly. The fastening limiting mechanism comprises a motor assembly, the output end of the motor assembly is fixedly connected with a gear, the top of the gear is provided with a toothed plate, the front side and the rear side of the top of the toothed plate are both fixedly connected with vertical plate assemblies, and the inner sides of the vertical plate assemblies are fixedly connected with rectangular plates. According to the automatic electrical testing equipment, a traditional mode of clamping and limiting through a threaded rod is changed, the transverse plate is adopted to drive the batten plate to move downwards, so that the batten plate presses the circuit board body, the circuit board body can be tightly clamped, the testing stability of the circuit board is improved, and the testing accuracy is ensured.

Description

Technical Field

[0001] This invention relates to the field of circuit board processing technology, specifically to an automated electrical testing device for circuit board processing. Background Technology

[0002] Circuit boards (PCBs) are core components of electronic devices, used for mechanical support and electrical connection of electronic components. They consist of an insulating substrate (such as FR4, flexible materials, etc.) and conductive copper layers. Specific circuit patterns are formed through processes such as printing and etching, and interlayer conductivity is achieved through drilling and electroplating. PCBs are characterized by high wiring density, high reliability, and mass production capability, and are widely used in consumer electronics, communications, medical, automotive electronics, and other fields. They are a key foundation for the miniaturization and intelligence of modern electronic products. Automated electrical testing equipment is an intelligent testing system used to efficiently test the electrical performance and functional integrity of PCBs. It quickly completes continuity, insulation, signal quality, and functional verification through automated probes, sensors, and test programs. It mainly includes flying probe testers, bed-of-needle testers (ICT), and functional testers (FCT), etc., and combines software algorithms to achieve high-precision measurement and defect location, greatly improving testing efficiency and consistency. It is widely used in PCB manufacturing, electronic assembly, and quality control to ensure that products meet design standards and reduce labor costs.

[0003] According to a patent published on the China Patent Network, the patent title is: "A Circuit Board Testing Device for Environmental Monitoring Equipment," patent application number: 202111018677.4. It includes an operating platform, a feeding component, a conveying mechanism, a patch assembly, a soldering assembly, and a spot testing component. The feeding component is located at one end of the operating platform; the conveying mechanism is located on one side of the operating platform; the patch assembly is located on the operating platform and on one side of the feeding component; the soldering assembly is located on the operating platform; and the spot testing component is located at the other end of the operating platform. This invention facilitates automatic feeding and conveying of circuit boards during the processing of environmental monitoring equipment, improving the feeding efficiency. The automation level of the transfer enables automatic placement operations, improving the accuracy and efficiency of placement. It can automatically, efficiently, and with high precision perform electronic component soldering operations and automatically perform circuit board testing operations, improving testing efficiency and automation. It also achieves automation of control board processing and has strong practicality. However, the automated electrical testing equipment mentioned above uses threaded rods to clamp and limit the circuit board when limiting it. However, the threads of the threaded rods are prone to stripping, causing the clamped circuit board to be unstable and easily wobbling slightly, affecting the accuracy of the test.

[0004] Therefore, it is necessary to design and modify automated electrical testing equipment to effectively prevent the threaded rod clamping limit from slipping, which would lead to unstable clamping. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention aims to provide an automated electrical testing device for circuit board processing, which has the advantage of being able to press the limit plate to increase the testing stability, and solves the problem that the threaded rod clamping limit is prone to slippage, resulting in unstable clamping.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automated electrical testing device for circuit board processing, comprising a frame assembly;

[0007] A worktable assembly fixedly connected to the top of the rack assembly;

[0008] The test assembly is fixedly connected to the rear side of the top of the rack assembly;

[0009] The circuit board body is located on top of the workbench assembly;

[0010] A fastening and limiting mechanism is fixedly connected to the right side of the frame assembly. The fastening and limiting mechanism includes a motor assembly. A gear is fixedly connected to the output end of the motor assembly. A toothed plate is provided on the top of the gear. Vertical plate assemblies are fixedly connected to the front and rear sides of the top of the toothed plate. A rectangular plate is fixedly connected to the inner side of the vertical plate assembly. A sliding pin assembly is slidably connected to the rear right side of the rectangular plate. A side plate is fixedly connected to the right side of the sliding pin assembly. A chamfered plate assembly is fixedly connected to the front top of the rectangular plate. The chamfered plate assembly is slidably connected to the frame assembly on the side away from the rectangular plate. A horizontal plate is fixedly connected to the top left side of the side plate. A pressure strip is fixedly connected to the left side of the horizontal plate. The bottom of the pressure strip is in contact with the circuit board body.

[0011] In a preferred embodiment of the present invention, a blower mechanism is fixedly connected to the right side of the gear. The blower mechanism includes a reciprocating lead screw. An L-shaped plate is movably connected to the right side of the reciprocating lead screw via a bearing. The side of the L-shaped plate away from the reciprocating lead screw is fixedly connected to the frame assembly. A reciprocating block is threadedly connected to the surface of the reciprocating lead screw. The bottom of the reciprocating block is slidably connected to the L-shaped plate. A folding plate is fixedly connected to the front of the reciprocating block. An inclined plate is fixedly connected to the top left side of the folding plate. A blower fan is fixedly connected to the back of the inclined plate.

[0012] As a preferred embodiment of the present invention, a dust filtration mechanism is provided on the front side of the inclined plate. The dust filtration mechanism includes a filter plate assembly. A positioning plate is fixedly connected to the right side of the filter plate assembly. The side of the positioning plate away from the filter plate assembly extends into the interior of the inclined plate.

[0013] As a preferred embodiment of the present invention, a disassembly mechanism is slidably connected to the right side of the front of the inclined plate. The disassembly mechanism includes a push plate, the left side of which extends into the interior of the filter plate assembly, and a handle is fixedly connected to the front of the push plate.

[0014] As a preferred embodiment of the present invention, a push groove is provided on the right side of the front of the inclined plate, and the back of the push plate is slidably connected to the inside of the push groove.

[0015] As a preferred embodiment of the present invention, a fixing groove is provided on the right side of the positioning plate, and the left side of the push plate is engaged inside the fixing groove.

[0016] As a preferred embodiment of the present invention, the top of the L-shaped plate is provided with a sliding groove, and the bottom of the reciprocating block is slidably connected inside the sliding groove.

[0017] As a preferred embodiment of the present invention, buffer springs are fixedly connected to the top and bottom of the right side of the reciprocating block, and the right side of the buffer springs is fixedly connected to the L-shaped plate.

[0018] As a preferred embodiment of the present invention, a groove is provided on the top right side of the frame assembly, and the side of the corner plate assembly away from the rectangular plate is slidably connected to the inside of the groove, and the groove is used in conjunction with the corner plate assembly.

[0019] As a preferred embodiment of the present invention, the front and back sides of the motor assembly are fixedly connected with inclined corner blocks, and the left side of the inclined corner blocks is fixedly connected to the frame assembly.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The automated electrical testing equipment of this invention changes the traditional method of clamping and limiting with threaded rods. It adopts a horizontal plate to drive the pressure plate to move downward, so that the pressure plate presses against the circuit board body, which can make it firmly clamped, increasing the testing stability of the circuit board and ensuring the accuracy of the test.

[0022] 2. The present invention, through the setting of the blower mechanism, can dry the circuit board body under test, avoiding the phenomenon that the additives remaining on its surface affect the test accuracy, and improving the quality of circuit board body test.

[0023] 3. The present invention, through the setting of the dust filtration mechanism, can filter the blowing air, prevent impurities and dust from being blown onto the surface of the circuit board body, and ensure the testing quality of the circuit board body.

[0024] 4. The present invention, through the setting of the disassembly mechanism, enables the filter plate assembly to be disassembled and cleaned, thereby increasing the quality of subsequent filtration.

[0025] 5. The present invention, through the setting of the push groove, enables the push plate to slide more smoothly inside the inclined plate, reduces the friction between the push plate and the inclined plate, extends the service life of the push plate, and at the same time has a limiting effect on the push plate.

[0026] 6. The present invention, through the setting of the fixing groove, enables the push plate to be more securely engaged inside the positioning plate, avoiding the phenomenon of falling off and increasing the tightness of the push plate.

[0027] 7. The present invention, through the setting of the sliding groove, enables the reciprocating block to slide more smoothly inside the L-shaped plate, reduces the friction between the reciprocating block and the L-shaped plate, extends the service life of the reciprocating block, and at the same time has a limiting effect on the reciprocating block.

[0028] 8. By setting a buffer spring, the present invention can buffer the movement trajectory of the reciprocating block, avoid the phenomenon of excessive movement speed, and increase the running stability of the reciprocating block.

[0029] 9. The present invention, through the setting of the groove, enables the shank assembly to slide more smoothly inside the frame assembly, reduces the friction between the shank assembly and the frame assembly, extends the service life of the shank assembly, and at the same time has a limiting effect on the shank assembly.

[0030] 10. The present invention, through the setting of the inclined corner block, enables the motor assembly to operate more stably and avoids the phenomenon of the motor assembly falling. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a structural diagram of the fastening and limiting mechanism, the blowing mechanism, the dust filtering mechanism, and the disassembly mechanism of the present invention;

[0033] Figure 3 The structure of this invention Figure 2 Enlarged structural diagram at point A in the middle;

[0034] Figure 4 The structure of this invention Figure 2 Enlarged structural diagram at point B;

[0035] Figure 5 This is a partial rear view of the structure of the present invention;

[0036] Figure 6 This is a partial three-dimensional view of the structure of the present invention.

[0037] In the diagram: 1. Frame assembly; 2. Workbench assembly; 3. Test assembly; 4. Circuit board body; 5. Fastening and limiting mechanism; 6. Motor assembly; 7. Gear; 8. Tooth plate; 9. Vertical plate assembly; 10. Rectangular plate; 11. Sliding pin assembly; 12. Side plate; 13. Corner plate assembly; 14. Horizontal plate; 15. Pressure strip plate; 16. Blowing mechanism; 17. Reciprocating screw; 18. L-shaped plate; 19. Reciprocating block; 20. Folding plate; 21. Inclined plate; 22. Blowing fan; 23. Dust filtration mechanism; 24. Filter plate assembly; 25. Positioning plate; 26. Disassembly mechanism; 27. Push plate; 28. Handle; 29. ​​Push groove; 30. Fixing groove; 31. Sliding groove; 32. Buffer spring; 33. Strip groove; 34. Angled corner block. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 6 As shown, the present invention provides an automated electrical testing device for circuit board processing, including a frame assembly 1;

[0040] The workbench assembly 2 is fixedly connected to the top of the rack assembly 1;

[0041] Test assembly 3 is fixedly connected to the rear top of rack assembly 1;

[0042] The circuit board body 4 is located on top of the workbench assembly 2;

[0043] A fastening and limiting mechanism 5 is fixedly connected to the right side of the frame assembly 1. The fastening and limiting mechanism 5 includes a motor assembly 6. A gear 7 is fixedly connected to the output end of the motor assembly 6. A toothed plate 8 is provided on the top of the gear 7. A vertical plate assembly 9 is fixedly connected to the front and rear sides of the top of the toothed plate 8. A rectangular plate 10 is fixedly connected to the inner side of the vertical plate assembly 9. A sliding pin assembly 11 is slidably connected to the rear side of the right side of the rectangular plate 10. A side plate 12 is fixedly connected to the right side of the sliding pin assembly 11. A bend plate assembly 13 is fixedly connected to the front side of the top of the rectangular plate 10. The side of the bend plate assembly 13 away from the rectangular plate 10 is slidably connected to the frame assembly 1. A horizontal plate 14 is fixedly connected to the top left side of the side plate 12. A pressure strip 15 is fixedly connected to the left side of the horizontal plate 14. The bottom of the pressure strip 15 contacts the circuit board body 4.

[0044] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A blower mechanism 16 is fixedly connected to the right side of gear 7. The blower mechanism 16 includes a reciprocating screw 17. An L-shaped plate 18 is movably connected to the right side of the reciprocating screw 17 via a bearing. The side of the L-shaped plate 18 away from the reciprocating screw 17 is fixedly connected to the frame assembly 1. A reciprocating block 19 is threadedly connected to the surface of the reciprocating screw 17. The bottom of the reciprocating block 19 is slidably connected to the L-shaped plate 18. A folding plate 20 is fixedly connected to the front of the reciprocating block 19. An inclined plate 21 is fixedly connected to the top left side of the folding plate 20. A blower fan 22 is fixedly connected to the back of the inclined plate 21.

[0045] As a technical optimization of the present invention, by setting the blower mechanism 16, the circuit board body 4 to be tested can be dried, avoiding the phenomenon that the additives remaining on its surface affect the accuracy of the test, and increasing the quality of the test of the circuit board body 4.

[0046] refer to Figure 1 , Figure 2 and Figure 4 The inclined plate 21 is provided with a dust filtration mechanism 23 on its front side. The dust filtration mechanism 23 includes a filter plate assembly 24. A positioning plate 25 is fixedly connected to the right side of the filter plate assembly 24. The side of the positioning plate 25 away from the filter plate assembly 24 extends into the interior of the inclined plate 21.

[0047] As a technical optimization of the present invention, the dust filter mechanism 23 can filter the blowing air, prevent impurities and dust from being blown onto the surface of the circuit board body 4, and ensure the test quality of the circuit board body 4.

[0048] refer to Figure 1 , Figure 2 and Figure 4 A disassembly mechanism 26 is slidably connected to the right side of the front of the inclined plate 21. The disassembly mechanism 26 includes a push plate 27. The left side of the push plate 27 extends into the interior of the filter plate assembly 24. A handle 28 is fixedly connected to the front of the push plate 27.

[0049] As a technical optimization of the present invention, the filter plate assembly 24 can be disassembled and cleaned by setting the disassembly mechanism 26, thereby increasing the quality of subsequent filtration.

[0050] refer to Figure 4 A push groove 29 is provided on the right side of the front of the inclined plate 21, and the back of the push plate 27 is slidably connected to the inside of the push groove 29.

[0051] As a technical optimization of the present invention, by setting the push groove 29, the push plate 27 can slide more smoothly inside the inclined plate 21, reducing the friction between the push plate 27 and the inclined plate 21, extending the service life of the push plate 27, and at the same time limiting the push plate 27.

[0052] refer to Figure 4 The right side of the positioning plate 25 has a fixing groove 30, and the left side of the push plate 27 is engaged inside the fixing groove 30.

[0053] As a technical optimization of the present invention, by setting the fixing groove 30, the push plate 27 can be more securely engaged inside the positioning plate 25, avoiding the phenomenon of falling off, and increasing the tightness of the push plate 27.

[0054] refer to Figure 2 The top of the L-shaped plate 18 is provided with a groove 31, and the bottom of the reciprocating block 19 is slidably connected to the inside of the groove 31.

[0055] As a technical optimization of the present invention, by setting the slide groove 31, the reciprocating block 19 can slide more smoothly inside the L-shaped plate 18, reducing the friction between the reciprocating block 19 and the L-shaped plate 18, extending the service life of the reciprocating block 19, and at the same time limiting the position of the reciprocating block 19.

[0056] refer to Figure 3 The top and bottom of the right side of the reciprocating block 19 are fixedly connected to buffer springs 32, and the right side of the buffer springs 32 is fixedly connected to the L-shaped plate 18.

[0057] As a technical optimization of the present invention, by setting the buffer spring 32, the movement trajectory of the reciprocating block 19 can be buffered, avoiding the phenomenon of excessive movement speed and increasing the operational stability of the reciprocating block 19.

[0058] refer to Figure 6 A groove 33 is provided on the top right side of the frame assembly 1. The side of the slant plate assembly 13 away from the rectangular plate 10 is slidably connected to the inside of the groove 33. The groove 33 is used in conjunction with the slant plate assembly 13.

[0059] As a technical optimization of the present invention, by setting the groove 33, the shank assembly 13 can slide more smoothly inside the frame assembly 1, reducing the friction between the shank assembly 13 and the frame assembly 1, extending the service life of the shank assembly 13, and at the same time limiting the position of the shank assembly 13.

[0060] refer to Figure 2 The front and back of the motor assembly 6 are fixedly connected with angled corner blocks 34, and the left side of the angled corner blocks 34 is fixedly connected to the frame assembly 1.

[0061] As a technical optimization of the present invention, by setting the angled corner block 34, the motor assembly 6 can operate more stably and avoid the phenomenon of the motor assembly 6 falling.

[0062] The working principle and usage process of this invention are as follows: First, when the user needs to clamp the circuit board body 4, the motor assembly 6 is activated. The output end of the motor assembly 6 drives the gear 7 to rotate. The gear 7 drives the toothed plate 8 to move forward. The toothed plate 8 drives the vertical plate assembly 9 to move forward. The vertical plate assembly 9 drives the rectangular plate 10 to move forward. The rectangular plate 10 drives the sliding pin assembly 11 to move forward. The sliding pin assembly 11 drives the side plate 12 to move forward. The side plate 12 drives the horizontal plate 14 and the pressure strip 15 to move forward, so that the pressure strip 15 presses against the circuit board body 4, achieving the effect of pressing the limit plate to increase the stability of the test. Then, while the gear 7 rotates, the reciprocating screw 1... 7 will also rotate accordingly, and the reciprocating screw 17 will drive the reciprocating block 19 to move left and right. The reciprocating block 19 will drive the folding plate 20 and the tilting plate 21 to move left and right. The tilting plate 21 will drive the blower 22 to move left and right, so that the blower 22 can dry the circuit board body 4, so as to avoid the effect of additive residue affecting the test accuracy. Then, the air is filtered by the filter plate assembly 24 and the positioning plate 25, so as to filter the impurities and dust from the blower. When it is necessary to disassemble the filter plate assembly 24, pull the push plate 27 to the right to disengage the push plate 27 from the inside of the positioning plate 25. Then the filter plate assembly 24 can be removed for cleaning, so as to achieve the effect of convenient disassembly and cleaning.

[0063] In summary, this automated electrical testing equipment for circuit board processing changes the traditional method of clamping and limiting with threaded rods. It uses a horizontal plate 14 to drive the pressure plate 15 downward, so that the pressure plate 15 presses against the circuit board body 4, thus clamping it tightly, increasing the testing stability of the circuit board and ensuring the accuracy of the test.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated electrical testing device for circuit board processing, comprising a frame assembly (1); A workbench assembly (2) is fixedly connected to the top of the rack assembly (1); The test assembly (3) is fixedly connected to the rear side of the top of the rack assembly (1); The circuit board body (4) is set on top of the workbench assembly (2); Its features are: A fastening and limiting mechanism (5) is fixedly connected to the right side of the frame assembly (1). The fastening and limiting mechanism (5) includes a motor assembly (6). A gear (7) is fixedly connected to the output end of the motor assembly (6). A toothed plate (8) is provided on the top of the gear (7). A vertical plate assembly (9) is fixedly connected to both the front and rear sides of the top of the toothed plate (8). A rectangular plate (10) is fixedly connected to the inner side of the vertical plate assembly (9). A sliding pin assembly is slidably connected to the rear right side of the rectangular plate (10). The sliding pin assembly (11) has a side plate (12) fixedly connected to its right side, and a bend plate assembly (13) fixedly connected to the front side of the top of the rectangular plate (10). The side of the bend plate assembly (13) away from the rectangular plate (10) is slidably connected to the frame assembly (1). A horizontal plate (14) is fixedly connected to the top of the left side of the side plate (12), and a pressure strip plate (15) is fixedly connected to the left side of the horizontal plate (14). The bottom of the pressure strip plate (15) is in contact with the circuit board body (4).

2. The automated electrical testing equipment for circuit board processing according to claim 1, characterized in that: A blower mechanism (16) is fixedly connected to the right side of the gear (7). The blower mechanism (16) includes a reciprocating screw (17). An L-shaped plate (18) is movably connected to the right side of the reciprocating screw (17) via a bearing. The side of the L-shaped plate (18) away from the reciprocating screw (17) is fixedly connected to the frame assembly (1). A reciprocating block (19) is threadedly connected to the surface of the reciprocating screw (17). The bottom of the reciprocating block (19) is slidably connected to the L-shaped plate (18). A folding plate (20) is fixedly connected to the front of the reciprocating block (19). An inclined plate (21) is fixedly connected to the top left side of the folding plate (20). A blower fan (22) is fixedly connected to the back of the inclined plate (21).

3. The automated electrical testing equipment for circuit board processing according to claim 2, characterized in that: The inclined plate (21) is provided with a dust filtration mechanism (23) on the front side. The dust filtration mechanism (23) includes a filter plate assembly (24). A positioning plate (25) is fixedly connected to the right side of the filter plate assembly (24). The side of the positioning plate (25) away from the filter plate assembly (24) extends into the interior of the inclined plate (21).

4. The automated electrical testing equipment for circuit board processing according to claim 3, characterized in that: A disassembly mechanism (26) is slidably connected to the right side of the front of the inclined plate (21). The disassembly mechanism (26) includes a push plate (27). The left side of the push plate (27) extends into the interior of the filter plate assembly (24). A handle (28) is fixedly connected to the front of the push plate (27).

5. The automated electrical testing equipment for circuit board processing according to claim 4, characterized in that: A push groove (29) is provided on the right side of the front of the inclined plate (21), and the back of the push plate (27) is slidably connected to the inside of the push groove (29).

6. The automated electrical testing equipment for circuit board processing according to claim 4, characterized in that: The positioning plate (25) has a fixing groove (30) on its right side, and the push plate (27) is engaged with the inside of the fixing groove (30) on its left side.

7. The automated electrical testing equipment for circuit board processing according to claim 2, characterized in that: The top of the L-shaped plate (18) is provided with a groove (31), and the bottom of the reciprocating block (19) is slidably connected to the inside of the groove (31).

8. An automated electrical testing device for circuit board processing according to claim 2, characterized in that: The top and bottom of the right side of the reciprocating block (19) are fixedly connected with buffer springs (32), and the right side of the buffer springs (32) is fixedly connected to the L-shaped plate (18).

9. An automated electrical testing device for circuit board processing according to claim 1, characterized in that: The top right side of the frame assembly (1) is provided with a groove (33), and the side of the slant plate assembly (13) away from the rectangular plate (10) is slidably connected to the inside of the groove (33). The groove (33) is used in conjunction with the slant plate assembly (13).

10. An automated electrical testing device for circuit board processing according to claim 1, characterized in that: The motor assembly (6) has oblique corner blocks (34) fixedly connected to both the front and back sides, and the left side of the oblique corner blocks (34) is fixedly connected to the frame assembly (1).

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