Circuit board production final inspection automatic hole inspection device

Abstract

The utility model discloses an automatic hole checking device for circuit board production final inspection, which belongs to the technical field of circuit board production and comprises a conveying table, a hole checking machine arranged beside the conveying table, a sliding groove arranged in the middle of the hole checking machine, a first electric telescopic rod fixedly arranged on the bottom wall of the sliding groove, and a material receiving plate arranged above the first electric telescopic rod. A sensing device is arranged on the material receiving plate, a measuring probe and a control panel are arranged above the material receiving plate, the measuring probe is fixedly connected with the second electric telescopic rod, material guide grooves are formed in the two sides of the top end of the sliding groove, an inferior product groove is further formed in the side wall of the sliding groove, and an elastic push plate is arranged on the side wall, corresponding to the inferior product groove, of the sliding groove. The automation of the whole process is realized, the labor is saved, and the hole inspection efficiency in the final inspection procedure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production, in particular to an automatic hole inspection device for final inspection of circuit board production. Background Art

[0002] The circuit board is the support of electronic components and the medium for electrical connection. It realizes the connection between electronic components through pre-designed conductive paths. The production process of circuit boards includes the following key steps: cutting and inner layer preparation, multi-layer lamination, drilling, electroplating, graphic transfer and etching, solder mask, character printing, surface treatment, cutting and forming, testing and quality inspection, etc. In short, every link in the circuit board production process needs to be precisely controlled to ensure the reliability and performance of the final product.

[0003] Final inspection of printed circuit boards (PCBs) is an important part of the production process. Its purpose is to ensure that each PCB meets the design and quality requirements, thereby ensuring the reliability and performance of the final product. Final inspection usually includes appearance inspection and dimensional inspection, among which dimensional inspection includes checking the hole position and hole diameter on the circuit board (PCB). A hole inspection device is used in this process.

[0004] Traditional circuit board hole inspection equipment directly inspects holes while conveying intermittently on a conveyor belt. No additional positioning device is set up, which cannot ensure the accurate position of the circuit board during hole inspection. After the circuit board is inspected, it cannot automatically sort out defective products. Most equipment operates this by manual sorting, which not only increases labor costs but also has low efficiency. Utility Model Content

[0005] In order to solve the above-mentioned traditional circuit board hole inspection equipment, the holes are inspected directly on the conveyor belt while being intermittently conveyed, and no additional positioning device is set, which cannot ensure the accurate position of the circuit board during the hole inspection, and after the circuit board is inspected, it is impossible to automatically sort out defective products, and most equipment operates this by manual sorting, which not only increases labor costs but also has low efficiency. The utility model provides an automatic hole inspection device for final inspection of circuit board production.

[0006] A circuit board production final inspection automatic hole inspection device comprises a conveying platform, a hole inspection machine is arranged next to the conveying platform, a slide is arranged in the middle of the hole inspection machine, a first electric telescopic rod is fixedly arranged on the bottom wall of the slide, a material receiving plate is arranged above the first electric telescopic rod, a sensing device is arranged on the material receiving plate, a measuring probe and a control panel are arranged above the material receiving plate, the measuring probe is fixedly connected to the second electric telescopic rod, material guide grooves are arranged on both sides of the top of the slide, a defective product groove is also arranged on the side wall of the slide, and an elastic push plate is arranged on the side wall of the slide corresponding to the defective product groove.

[0007] More preferably, a rotating shaft is rotatably provided at both ends of the conveying platform, a group of synchronous gears is fixedly provided on the outer wall of the rotating shaft, the group of synchronous gears are movably connected by a gear belt, and rotate synchronously driven by a rotating motor, and a conveyor belt is rotatably provided on the outer wall of the rotating shaft.

[0008] More preferably, the size of the receiving plate is consistent with the size of the circuit board body, and can just move up and down in the slide slot. The sensing device is arranged on the top of the receiving plate, preferably a weight sensor. A support plate is also arranged on the hole testing machine, and the support plate is preferably an L-shaped structure. The control panel is arranged on the top wall of the support plate.

[0009] More preferably, a second electric telescopic rod is fixedly provided on the bottom wall of the support plate, and a measuring probe is fixedly provided on the bottom end of the second electric telescopic rod, which can measure the position and diameter of the hole of the circuit board body, and limiting plates are provided on the bottom of the slide groove and the support plate, and limiting grooves are provided through the limiting plates, and the first electric telescopic rod and the second electric telescopic rod can slide up and down in the limiting grooves.

[0010] More preferably, the material guide troughs are all arranged at an angle and have a wide-in and narrow-out structure. The inclined lower end of the material guide trough close to the conveying platform is arranged above the slide trough, and the inclined upper end of the material guide trough away from the conveying platform is arranged above the slide trough. The lowest height is higher than the thickness of the circuit board body.

[0011] More preferably, a good product frame and a bad product frame are movably provided at the inclined lower end of the material guide trough and the inclined lower end of the bad product trough, respectively.

[0012] More preferably, a groove is provided on the side wall of the slide groove opposite to the inclined upper end of the defective product groove, and the elastic push plate includes a spring group fixedly arranged on the inner wall of the groove, and a push plate is fixedly arranged on the outer end of the spring group. The push plate is preferably semicircular, and the circular arc is close to one end of the receiving plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the circuit board body falls from the conveyor belt along the guide trough to the top of the receiving plate, and the sensing device transmits the information to the control panel after sensing, and then instructs the second electric telescopic rod to drive the measuring probe close to the circuit board body and perform hole inspection measurement on it, and the measured data is transmitted to the control panel, and the control panel analyzes whether it meets the regulations, and the inferior products that do not meet the regulations are driven by the first electric telescopic rod to move down and enter the inferior product frame along the inferior product trough, and the good products that meet the regulations are driven by the first electric telescopic rod to move up and fall into the good product frame along the guide trough. The automation of the entire process is realized, labor is saved, and the efficiency of final hole inspection is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a partial structural sectional view of the utility model;

[0016] Figure 3 It is a schematic top view of part of the structure of the utility model;

[0017] Figure 4 It is a schematic diagram of partial structure A of the utility model.

[0018] In the figure: 1. conveying platform; 2. hole testing machine; 3. slide; 4. first electric telescopic rod; 5. material receiving plate; 6. induction device; 7. measuring probe; 8. control panel; 9. second electric telescopic rod; 10. material guide trough; 11. defective product trough; 12. elastic push plate; 13. synchronous gear; 14. rotating motor; 15. gear belt; 16. conveyor belt; 17. circuit board body; 18. support plate; 19. limit plate; 20. limit groove; 21. good product frame; 22. defective product frame; 23. groove; 24. spring group; 25. push plate. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this utility model can be understood according to the specific circumstances. In addition, the term "plurality" should mean two or more than two.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. Figure 1-Figure 4 The utility model is described in detail in conjunction with the embodiments.

[0024] An automatic hole inspection device for final inspection of circuit board production includes a conveyor platform 1, a hole inspection machine 2 is arranged next to the conveyor platform 1, rotating shafts are rotatably arranged at both ends of the conveyor platform 1, a group of synchronous gears 13 are fixedly arranged on the outer wall of the rotating shaft, the group of synchronous gears 13 are movably connected through a gear belt 15, and rotate synchronously under the drive of a rotating motor 14, and a conveyor belt 16 is rotatably arranged on the outer wall of the rotating shaft.

[0025] The rotating motor 14 is started, and under the synchronous action of the gear belt 15, a set of synchronous gears 13 are driven to rotate, and then the conveyor belt 16 is rotated and conveyed through the rotating shaft, and the circuit board body 17 is conveyed along the conveyor belt 16.

[0026] Material guide grooves 10 are arranged on both sides of the top of the slide groove 3. The material guide grooves 10 are all inclined and have a wide-in and narrow-out structure, which facilitates the circuit board body 17 to enter the inside of the material guide groove 10. The inclined lower end of the material guide groove 10 close to the conveying platform 1 is arranged above the slide groove 3, and the inclined upper end of the material guide groove 10 away from the conveying platform 1 is arranged above the slide groove 3. The minimum height is higher than the thickness of the circuit board body 17, which can intercept the circuit board body 17 so that it is just restricted on the receiving plate 5. The circuit board body 17 slides into the top of the receiving plate 5 along the restriction of the material guide groove 10.

[0027] A slide groove 3 is arranged in the middle of the hole inspection machine 2, a first electric telescopic rod 4 is fixedly arranged on the bottom wall of the slide groove 3, a material receiving plate 5 is arranged above the first electric telescopic rod 4, a sensing device 6 is arranged on the material receiving plate 5, the size of the material receiving plate 5 is consistent with the size of the circuit board body 17, and it can just move up and down in the slide groove 3, the sensing device 6 is arranged on the top of the material receiving plate, and is preferably a weight sensor.

[0028] After the sensing device 6 senses that the circuit board body 17 falls into the receiving plate 5, it sends information to the control panel 8. After receiving the information, the control panel 8 sends a command to the second electric telescopic rod 9 according to the preset hole inspection process.

[0029] A measuring probe 7 and a control panel 8 are arranged above the receiving plate 5. The measuring probe 7 is fixedly connected to the second electric telescopic rod 9. A support plate 18 is also arranged on the hole testing machine 2. The support plate 18 is preferably an L-shaped structure. The control panel 8 is arranged on the top wall of the support plate 18. The second electric telescopic rod 9 is fixedly arranged on the bottom wall of the support plate 18. The measuring probe 7 is fixedly arranged on the bottom end of the second electric telescopic rod 9, which can measure the position and diameter of the hole in the circuit board body 17.

[0030] After receiving the command, the second electric telescopic rod 9 drives the measuring probe 7 to approach the circuit board body 17, and the measuring probe 7 measures the hole on the circuit board body 17, and transmits the measured information back to the internal system of the control panel 8. The system compares and identifies the received value with the preset standard value.

[0031] If a circuit board body 17 that meets the standards is identified, an instruction message is sent to the first electric telescopic rod 4 to extend upward, driving the receiving plate 5 to move upward until the circuit board body 17 can successfully slide into the right material guide trough 10. Since a good product frame 21 is movably provided at the inclined lower end of the material guide trough 10, the qualified circuit board body 17 falls into the good product frame 21 along the material guide trough 10 and is uniformly collected.

[0032] A defective product groove 11 is also provided on the side wall of the slide groove 3, and an elastic push plate 12 is provided on the side wall of the slide groove 3 corresponding to the defective product groove 11. A groove 23 is provided on the side wall of the slide groove 3 opposite to the inclined upper end of the defective product groove 11. The elastic push plate 12 includes a spring group 24 fixedly arranged on the inner wall of the groove 23, and a push plate 25 is fixedly arranged on the outer end of the spring group 24. The push plate 25 is preferably semicircular, and the circular arc is close to one end of the receiving plate 5.

[0033] If a circuit board body 17 that does not meet the standards is identified, an instruction message for retracting downward is sent to the first electric telescopic rod 4, driving the receiving plate 5 to move downward. During the downward movement of the receiving plate 5, its bottom wall pushes downward on the semicircular side of the push plate 25. After being forced, the push plate 25 retracts into the groove 23, and the receiving plate 5 continues to move downward until the circuit board body 17 can enter the inclined upper end of the inferior product groove 11. At this time, the receiving plate 5 leaves the push plate 25, and the push plate 25 pops out from the inside of the groove 23 under the rebound action of the spring group 24, pushing the side wall of the circuit board body 17. The circuit board body 17 smoothly enters the inferior product groove 11 under its pushing action. Since the inferior product groove 11 is movably provided with a inferior product frame 22 at the inclined lower end, the circuit board body 17 falls into the inferior product frame 22 along the inclined direction of the inferior product groove 11 and is collected.

[0034] A limiting plate 19 is provided at the bottom of the slide groove 3 and the support plate 18, and a limiting groove 20 is provided through the limiting plate 19. The first electric telescopic rod 4 and the second electric telescopic rod 9 can slide up and down in the limiting groove 20, which can ensure the stability of the first electric telescopic rod 4 and the second electric telescopic rod 9 in the process of moving up or down, and avoid shaking.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic hole inspection device for final inspection of circuit board production, comprising a conveying platform (1), a hole inspection machine (2) is arranged next to the conveying platform (1), and is characterized in that: A slide groove (3) is arranged in the middle of the hole inspection machine (2), a first electric telescopic rod (4) is fixedly arranged on the bottom wall of the slide groove (3), a material receiving plate (5) is arranged above the first electric telescopic rod (4), a sensing device (6) is arranged on the material receiving plate (5), a measuring probe (7) and a control panel (8) are arranged above the material receiving plate (5), the measuring probe (7) is fixedly connected to the second electric telescopic rod (9), material guide grooves (10) are arranged on both sides of the top of the slide groove (3), a defective product groove (11) is also arranged on the side wall of the slide groove (3), and an elastic push plate (12) is arranged on the side wall of the slide groove (3) corresponding to the defective product groove (11).

2. The automatic hole inspection device for final inspection of circuit board production according to claim 1, characterized in that: A rotating shaft is rotatably arranged at both ends of the conveying platform (1), a group of synchronous gears (13) is fixedly arranged on the outer wall of the rotating shaft, the group of synchronous gears (13) are movably connected through a gear belt (15), and rotate synchronously under the drive of a rotating motor (14), and a conveying belt (16) is rotatably arranged on the outer wall of the rotating shaft.

3. The circuit board production final inspection automatic hole inspection device according to claim 2, characterized in that: The size of the receiving plate (5) is consistent with that of the circuit board body (17), and can just move up and down in the slide groove (3). The sensing device (6) is arranged on the top of the receiving plate and is a weight sensor. The hole inspection machine (2) is also provided with a support plate (18), and the support plate (18) is an L-shaped structure. The control panel (8) is arranged on the top wall of the support plate (18).

4. The automatic hole inspection device for final inspection of circuit board production according to claim 3 is characterized by: A second electric telescopic rod (9) is fixedly arranged on the bottom wall of the support plate (18); a measuring probe (7) is fixedly arranged at the bottom end of the second electric telescopic rod (9) for measuring the position and diameter of the hole of the circuit board body (17); a limiting plate (19) is arranged at the bottom of the slide groove (3) and the support plate (18); a limiting groove (20) is arranged through the limiting plate (19); and the first electric telescopic rod (4) and the second electric telescopic rod (9) can slide up and down in the limiting groove (20).

5. The automatic hole inspection device for final inspection of circuit board production according to claim 4 is characterized in that: The material guide grooves (10) are all arranged at an angle and have a wide-in and narrow-out structure. The inclined lower end of the material guide groove (10) close to the conveying platform (1) is arranged above the slide groove (3), and the inclined upper end of the material guide groove (10) away from the conveying platform (1) is arranged above the slide groove (3). The lowest height is higher than the thickness of the circuit board body (17).

6. The automatic hole inspection device for final inspection of circuit board production according to claim 5, characterized in that: The inclined lower end of the material guide trough (10) and the inclined lower end of the defective product trough (11) are movably provided with a good product frame (21) and a defective product frame (22), respectively.

7. The automatic hole inspection device for final inspection of circuit board production according to claim 6, characterized in that: A groove (23) is arranged on the side wall of the slide groove (3) opposite to the inclined upper end of the inferior product groove (11); the elastic push plate (12) comprises a spring group (24) fixedly arranged on the inner wall of the groove (23); a push plate (25) is fixedly arranged on the outer end of the spring group (24); the push plate (25) is semicircular, and the circular arc is close to one end of the receiving plate (5).

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