PCB appearance detection machine

Abstract

The utility model discloses a PCB appearance detection machine relates to detection equipment field. The PCB appearance detection machine, including the frame, the upper portion of frame is equipped with positioning mechanism, detection mechanism and blanking mechanism, the detection mechanism includes support, Y axis linear motor, X axis linear motor and detection assembly, the support sets up in the side of positioning mechanism, Y axis linear motor fixed mounting is in the upper portion of support, and X axis linear motor sets up in the upper portion of Y axis linear motor, and detection assembly sets up in the front of X axis linear motor, just the detection assembly includes appearance detection camera, seal structure and seal detection camera. The PCB appearance detection machine, appearance detection camera is used for capturing PCB surface image, and seal structure utilizes pneumatic to mark NG position, and seal detection camera verifies the mark quality simultaneously, and appearance detection camera, seal structure and seal detection camera integrated setting form "detection - mark - recheck " closed loop process.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a PCB appearance inspection machine. Background Technology

[0002] In the electronics manufacturing industry, PCBs (printed circuit boards) are core components, and their appearance quality directly affects the performance and reliability of electronic products. Traditional PCB appearance inspection mainly relies on manual visual inspection or simple optical equipment, which suffers from low efficiency, high missed detection rate, and poor consistency. As electronic components become increasingly miniaturized and high-density, traditional inspection methods can no longer meet the needs of modern manufacturing.

[0003] Although existing automated inspection equipment has partially achieved machine vision inspection, it generally has the following shortcomings: 1) The positioning mechanism mostly adopts mechanical clamping, which is easy to cause scratches or contamination to the PCB surface; 2) The inspection components have limited functions and can only complete a single function in appearance inspection or marking. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a PCB appearance inspection machine, which solves the problems of existing automated inspection equipment, which, although partially realizing machine vision inspection, mostly adopt mechanical clamping methods, easily causing scratches or contamination to the PCB surface, and having limited detection functions, only able to complete single functions such as appearance inspection or marking.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a PCB appearance inspection machine, including a frame, and a positioning mechanism, an inspection mechanism and a feeding mechanism are installed on the top of the frame;

[0006] The testing institutions include:

[0007] A bracket, which is disposed on the side of the positioning mechanism;

[0008] The Y-axis linear motor is fixedly mounted on top of the bracket;

[0009] The X-axis linear motor is positioned above the Y-axis linear motor.

[0010] A detection component is disposed on the front of an X-axis linear motor, and the detection component includes an appearance inspection camera, a stamp structure, and a stamp inspection camera.

[0011] The PCB board to be inspected is placed on the positioning mechanism. At this time, the Y-axis linear motor and X-axis linear motor drive the appearance inspection camera, the stamp structure and the stamp inspection camera to move above the PCB board. The appearance inspection camera is used to perform appearance inspection, and the NG position is stamped by the stamp structure. At the same time, the stamp inspection camera is used to inspect the stamp pattern.

[0012] Preferably, the positioning mechanism includes:

[0013] The support frame is fixedly installed on top of the machine frame;

[0014] The adsorption plate is fixedly installed on the top of the support frame;

[0015] The pulley assembly has multiple sets, and the multiple sets of pulley assemblies are mounted on the support frame;

[0016] Conveyor belts, multiple conveyor belts are connected to multiple sets of pulley assemblies respectively. When the pulley assemblies rotate, they can drive the conveyor belts to circulate on the outside of the support frame, and the upper conveyor belts are embedded in the adsorption plate.

[0017] Preferably, the adsorption plate has a cavity inside, and a plurality of air holes communicating with the cavity are provided on the top of the adsorption plate. An air pipe communicating with the cavity is provided at the bottom of the adsorption plate, and the other end of the air pipe is connected to an external air pump.

[0018] Preferably, a drive motor is fixedly connected to the bottom of the support frame, and the drive motor is used to drive multiple sets of pulley assemblies to move simultaneously.

[0019] Preferably, the detection component further includes a mounting bracket, which is fixedly mounted on the drive end of the X-axis linear motor. A first cylinder is fixedly mounted on the upper front of the mounting bracket, and the output end of the first cylinder is connected to the appearance inspection camera.

[0020] Preferably, a second cylinder is fixedly installed on the lower front side of the mounting bracket. The second cylinder is located on the side of the appearance inspection camera, and the output end of the second cylinder is connected to the stamp structure.

[0021] Preferably, the unloading mechanism includes an unloading frame and multiple conveying rollers. The unloading frame is disposed on the back of the support frame, and the multiple conveying rollers are rotatably disposed inside the unloading frame. A motor is disposed at the end of the unloading frame, and the drive end of the motor is connected to the end of the multiple conveying rollers through multiple pulleys.

[0022] Preferably, a monitoring mechanism is fixedly installed on the top of the rack. The monitoring mechanism includes a column, a mounting strip, and a monitoring camera. The mounting strip is fixedly installed on the top of the column, and the monitoring camera is fixedly installed on the mounting strip.

[0023] This utility model discloses a PCB appearance inspection machine, which has the following beneficial effects:

[0024] 1. This PCB appearance inspection machine has a bracket mounted on the side of the positioning mechanism, supporting a Y-axis linear motor. An X-axis linear motor is connected across the Y-axis slider, driving the inspection component to move horizontally. The appearance inspection camera in the inspection component is a high-resolution industrial camera used to capture images of the PCB surface. The stamp structure uses pneumatics to mark NG (non-compliant) locations, while the stamp inspection camera verifies the marking quality. The appearance inspection camera, stamp structure, and stamp inspection camera are integrated to form a closed-loop process of "inspection-marking-re-inspection," improving inspection efficiency.

[0025] 2. This PCB appearance inspection machine connects to an air pump through internal pores in the adsorption plate, achieving non-contact fixation of the PCB board and avoiding surface damage caused by mechanical clamping. It is particularly suitable for high-precision flexible circuit board inspection. The drive motor drives multiple sets of pulley assemblies to operate synchronously, causing the conveyor belt to form a closed-loop circulation motion on the surface of the adsorption plate, ensuring that the PCB board is smoothly conveyed into the unloading mechanism after inspection. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a structural diagram of the frame, positioning mechanism, feeding mechanism, and monitoring mechanism of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the testing mechanism of this utility model;

[0030] Figure 4 This is a schematic diagram of the detection component of this utility model.

[0031] In the diagram: 1. Frame; 2. Positioning mechanism; 21. Bearing frame; 22. Adsorption plate; 23. Pulley assembly; 24. Conveyor belt; 25. Drive motor; 3. Detection mechanism; 31. Support; 32. Y-axis linear motor; 33. X-axis linear motor; 34. Detection component; 341. Appearance inspection camera; 342. Stamp structure; 343. Stamp inspection camera; 344. Mounting frame; 345. First cylinder; 346. Second cylinder; 4. Unloading mechanism; 41. Unloading frame; 42. Conveyor roller; 5. Monitoring mechanism; 51. Column; 52. Mounting strip; 53. Monitoring camera. Detailed Implementation

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0033] This utility model discloses a PCB appearance inspection machine.

[0034] According to the appendix Figure 1-4 As shown, it includes a frame 1, and a positioning mechanism 2, a detection mechanism 3 and a feeding mechanism 4 are installed on the top of the frame 1;

[0035] Testing agency 3 includes:

[0036] Bracket 31 is provided on the side of positioning mechanism 2;

[0037] The Y-axis linear motor 32 is fixedly mounted on top of the bracket 31;

[0038] The X-axis linear motor 33 is positioned above the Y-axis linear motor 32;

[0039] The detection component 34 is disposed on the front of the X-axis linear motor 33, and the detection component 34 includes an appearance inspection camera 341, a stamp structure 342 and a stamp inspection camera 343.

[0040] The PCB board to be inspected is placed on the positioning mechanism 2. At this time, the appearance inspection camera 341, the stamp structure 342 and the stamp inspection camera 343 are driven by the Y-axis linear motor 32 and the X-axis linear motor 33 to move above the PCB board. The appearance inspection camera 341 is used to perform appearance inspection, and the NG position is stamped by the stamp structure 342. At the same time, the stamp inspection camera 343 is used to detect the stamp pattern.

[0041] The bracket 31 is mounted on the side of the positioning mechanism 2, supporting the Y-axis linear motor 32. The X-axis linear motor 33 is connected across the Y-axis slider, driving the detection assembly 34 to move horizontally. The appearance inspection camera 341 in the detection assembly 34 is a high-resolution industrial camera used to capture images of the PCB surface. The stamp structure 342 uses pneumatics to mark NG (non-compliant) locations, while the stamp inspection camera 343 verifies the marking quality. The appearance inspection camera 341, stamp structure 342, and stamp inspection camera 343 are integrated to form a closed-loop process of "inspection-marking-re-inspection," improving inspection efficiency.

[0042] Specifically disclosed, positioning agency 2 includes:

[0043] The support frame 21 is fixedly installed above the frame 1;

[0044] The adsorption plate 22 is fixedly installed on the top of the support frame 21;

[0045] The pulley assembly 23 has multiple sets, and the multiple sets of pulley assemblies 23 are mounted on the support frame 21;

[0046] Conveyor belts 24, multiple conveyor belts 24 are respectively connected to multiple sets of pulley assemblies 23. When the pulley assemblies 23 rotate, they can drive the conveyor belts 24 to circulate on the outside of the support frame 21, and the upper conveyor belts 24 are embedded in the adsorption plate 22.

[0047] Furthermore, the adsorption plate 22 has a cavity inside, and multiple air holes connected to the cavity are provided on the top of the adsorption plate 22. An air pipe connected to the cavity is provided at the bottom of the adsorption plate 22, and the other end of the air pipe is connected to an external air pump.

[0048] Furthermore, a drive motor 25 is fixedly connected to the bottom of the support frame 21, and the drive motor 25 is used to drive multiple sets of pulley assemblies 23 to move simultaneously.

[0049] The PCB board is connected to an air pump through the internal pores of the adsorption plate 22, achieving non-contact fixation and avoiding surface damage caused by mechanical clamping. This is particularly suitable for high-precision flexible circuit board inspection. The drive motor 25 drives multiple sets of pulley assemblies 23 to operate synchronously, so that the conveyor belt 24 forms a closed-loop circulation motion on the surface of the adsorption plate 22, ensuring that the PCB board is smoothly conveyed into the unloading mechanism 4 after inspection.

[0050] Specifically disclosed, the inspection component 34 also includes a mounting bracket 344, which is fixedly mounted on the drive end of the X-axis linear motor 33. A first cylinder 345 is fixedly mounted on the upper front of the mounting bracket 344, and the output end of the first cylinder 345 is connected to the appearance inspection camera 341.

[0051] Furthermore, a second cylinder 346 is fixedly mounted on the lower front side of the mounting bracket 344. The second cylinder 346 is located on the side of the appearance inspection camera 341, and the output end of the second cylinder 346 is connected to the stamp structure 342.

[0052] Mounting bracket 344 integrates first cylinder 345 and second cylinder 346, which respectively adjust the vertical position of appearance inspection camera 341 and stamp structure 342.

[0053] Specifically disclosed, the unloading mechanism 4 includes an unloading frame 41 and multiple conveying rollers 42. The unloading frame 41 is disposed on the back of the support frame 21, and the multiple conveying rollers 42 are rotatably disposed inside the unloading frame 41. A motor is disposed at the end of the unloading frame 41, and the drive end of the motor is connected to the end of the multiple conveying rollers 42 through multiple pulleys.

[0054] Specifically disclosed, a monitoring mechanism 5 is fixedly installed on the top of the rack 1. The monitoring mechanism 5 includes a column 51, a mounting strip 52 and a monitoring camera 53. The mounting strip 52 is fixedly installed on the top of the column 51, and the monitoring camera 53 is fixedly installed on the mounting strip 52.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A PCB appearance inspection machine, comprising a frame (1), characterized in that, The frame (1) is equipped with a positioning mechanism (2), a detection mechanism (3) and a feeding mechanism (4); The testing organization (3) includes: A bracket (31) is disposed on the side of the positioning mechanism (2); The Y-axis linear motor (32) is fixedly mounted on top of the bracket (31); The X-axis linear motor (33) is positioned above the Y-axis linear motor (32); The detection component (34) is disposed on the front of the X-axis linear motor (33), and the detection component (34) includes an appearance inspection camera (341), a stamp structure (342) and a stamp inspection camera (343); The PCB board to be inspected is placed on the positioning mechanism (2). At this time, the appearance inspection camera (341), the stamp structure (342) and the stamp inspection camera (343) are driven to move above the PCB board by the Y-axis linear motor (32) and the X-axis linear motor (33). The appearance inspection camera (341) is used to perform appearance inspection, and the NG position is stamped by the stamp structure (342). At the same time, the stamp inspection camera (343) is used to detect the stamp pattern.

2. The PCB appearance inspection machine according to claim 1, characterized in that, The positioning mechanism (2) includes: The support frame (21) is fixedly installed above the frame (1); An adsorption plate (22) is fixedly installed on the top of the support frame (21); The pulley assembly (23) is provided in multiple sets, and the multiple sets of pulley assemblies (23) are provided on the support frame (21); Conveyor belts (24), multiple conveyor belts (24) are respectively connected to multiple sets of pulley assemblies (23). When the pulley assembly (23) rotates, it can drive the conveyor belts (24) to circulate on the outside of the support frame (21), and the conveyor belts (24) at the top are embedded in the adsorption plate (22).

3. A PCB appearance inspection machine according to claim 2, characterized in that, The adsorption plate (22) has a cavity inside, and multiple air holes connected to the cavity are provided on the top of the adsorption plate (22). An air pipe connected to the cavity is provided at the bottom of the adsorption plate (22), and the other end of the air pipe is connected to an external air pump.

4. A PCB appearance inspection machine according to claim 3, characterized in that, The bottom of the support frame (21) is fixedly connected to a drive motor (25), and the drive motor (25) is used to drive multiple sets of pulley assemblies (23) to move simultaneously.

5. A PCB appearance inspection machine according to claim 1, characterized in that, The detection component (34) also includes a mounting bracket (344), which is fixedly mounted on the drive end of the X-axis linear motor (33). A first cylinder (345) is fixedly mounted on the upper front of the mounting bracket (344), and the output end of the first cylinder (345) is connected to the appearance inspection camera (341).

6. A PCB appearance inspection machine according to claim 5, characterized in that, A second cylinder (346) is fixedly mounted on the lower front side of the mounting bracket (344). The second cylinder (346) is located on the side of the appearance inspection camera (341), and the output end of the second cylinder (346) is connected to the stamp structure (342).

7. A PCB appearance inspection machine according to claim 2, characterized in that, The feeding mechanism (4) includes a feeding frame (41) and multiple conveying rollers (42). The feeding frame (41) is located on the back of the support frame (21). The multiple conveying rollers (42) are rotatably located inside the feeding frame (41). A motor is provided at the end of the feeding frame (41), and the drive end of the motor is connected to the end of the multiple conveying rollers (42) through multiple pulleys.

8. A PCB appearance inspection machine according to claim 1, characterized in that, A monitoring mechanism (5) is fixedly installed on the top of the frame (1). The monitoring mechanism (5) includes a column (51), a mounting strip (52) and a monitoring camera (53). The mounting strip (52) is fixedly installed on the top of the column (51), and the monitoring camera (53) is fixedly installed on the mounting strip (52).

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