Printed circuit board assembly (PCBA) board welding spot visual inspection equipment

Abstract

The utility model relates to a printed circuit board assembly (PCBA) board welding spot visual inspection device which comprises a working table and a detection head arranged on the working table, a plurality of transportation frames are arranged on the working table, and transportation wheels are arranged on the transportation frames. The conveying device further comprises an adjusting mechanism, the adjusting mechanism is arranged on the workbench, and the distance between the conveying frames is adjusted through the arranged adjusting mechanism; the conveying mechanism is arranged on the workbench, conveying wheels are driven through the arranged conveying mechanism, one conveying frame is fixedly arranged on the workbench, the other conveying frame is arranged on the workbench in a sliding mode, the conveying wheels are arranged at the two ends of the conveying frames, and transverse rods are arranged at the two ends of the conveying frames. The conveying wheels are rotationally connected with the conveying frame through the transverse rods, the distance between the conveying frame on the equipment is adjusted through the adjusting mechanism, PCBA boards of different sizes can be adapted, and the universality and flexibility of the equipment are improved.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, specifically relating to a visual inspection device for PCBA board solder joints. Background Technology

[0002] Currently, in order to ensure the quality of products that reach customers, positioning and inspection devices usually inspect various parts or firmware in each process to increase the yield rate of products. Among them, PCBA board, also known as finished circuit board, is one of the key components of electronic equipment. PCBA specifically refers to the entire process of manufacturing a blank PCB board through SMT component mounting and DIP insertion (some products do not require this step), which is a PCB board with assembled electronic components and soldered.

[0003] Existing PCBA boards come in various sizes, but most existing solder joint inspection equipment uses fixed inspection heads and transmission lines, which are difficult to adapt to the inspection needs of PCBA boards of different sizes. Therefore, there is an urgent need for a transmission line that can adjust the transmission distance according to different PCBA board sizes to meet the high requirements of the electronics manufacturing industry for solder joint quality inspection. Utility Model Content

[0004] The purpose of this invention is to provide a visual inspection device for PCBA board solder joints that can adapt to various sizes in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A PCBA board solder joint visual inspection device includes a worktable and an inspection head set on the worktable. The worktable is provided with multiple transport frames, and the transport frames are provided with transport wheels.

[0007] It also includes:

[0008] An adjustment mechanism is provided on the workbench to adjust the distance between the transport frames.

[0009] A transportation mechanism is set on a workbench, and the transportation wheels are driven by the transportation mechanism.

[0010] As a further optimization of this utility model, one of the transport frames is fixedly mounted on the workbench, and the other transport frame is slidably mounted on the workbench. The transport wheels are mounted at both ends of the transport frame, and crossbars are provided at both ends of the transport frame. The transport wheels are rotatably connected to the transport frame through the crossbars, and a belt is provided between the transport wheels.

[0011] As a further optimization of this utility model, the transport mechanism includes a transport motor, which is mounted on a workbench. A splined shaft is provided at the output end of the transport motor, and a sliding rod is slidably mounted on the splined shaft. A gear a is fixedly mounted on the sliding rod, and a gear b is fixedly mounted on the crossbar. The gear a and gear b mesh with each other, and the sliding rod is rotatably mounted at one end of the transport frame.

[0012] As a further optimization of this utility model, the adjustment mechanism includes an adjustment motor, which is mounted on the worktable. An adjustment screw is provided at the output end of the adjustment motor. The adjustment screw is threadedly connected to a transport frame that is slidably mounted on the worktable. Adjustment rails are provided on both sides of the worktable, and the transport frame is slidably connected to the worktable through the adjustment rails.

[0013] As a further optimization of this utility model, mounting frames are provided on both sides of the workbench, a movable frame is slidably mounted on the mounting frames, the detection head is slidably mounted on the movable frame, a longitudinal movement motor is provided on the mounting frames, a longitudinal movement screw is provided at the output end of the longitudinal movement motor, the longitudinal movement screw is threadedly connected to one end of the movable frame, a longitudinal movement rail is provided on the mounting frames, and the movable frame is slidably mounted on the mounting frames via the longitudinal movement rail.

[0014] As a further optimization of this utility model, a transverse motor is provided on the moving frame, and a transverse screw is provided at the output end of the transverse motor. The transverse screw is threadedly connected to the detection head. A transverse track is provided on the moving frame, and the detection head is slidably connected to the moving frame through the transverse track.

[0015] The beneficial effects of this utility model are as follows:

[0016] Unlike existing technologies, in actual use, the transport rack on the equipment can adjust the spacing through an adjustment mechanism, which can accommodate PCBA boards of different sizes, thus improving the equipment's versatility and flexibility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the transport frame of this utility model;

[0019] Figure 3 This is a utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the connection structure of the detection head of this utility model.

[0021] In the diagram: 1. Workbench; 2. Transport frame; 3. Inspection head; 31. Moving frame; 32. Mounting frame; 4. Adjustment mechanism; 41. Adjustment motor; 42. Adjustment screw; 43. Adjustment track; 5. Transport mechanism; 51. Transport motor; 52. Splined shaft; 53. Sliding rod; 531. Gear a; 532. Gear b; 6. Transport wheel; 61. Crossbar; 62. Belt; 7. Horizontal movement motor; 71. Horizontal movement screw; 72. Horizontal movement track; 8. Longitudinal movement motor; 81. Longitudinal movement screw; 82. Longitudinal movement track. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] like Figure 1 - Figure 4 As shown, a PCBA board solder joint visual inspection device includes a worktable 1 and an inspection head 3 set on the worktable 1. Multiple transport frames 2 are set on the worktable 1, and transport wheels 6 are set on the transport frames 2.

[0024] It also includes:

[0025] Adjustment mechanism 4 is set on the workbench 1, and the distance between the transport frames 2 is adjusted by the adjustment mechanism 4;

[0026] The transport mechanism 5 is set on the workbench 1, and the transport wheel 6 is driven by the transport mechanism 5.

[0027] One of the transport frames 2 is fixedly mounted on the workbench 1, and the other transport frame 2 is slidably mounted on the workbench 1. Transport wheels 6 are mounted at both ends of the transport frame 2, and crossbars 61 are mounted at both ends of the transport frame 2. The transport wheels 6 are rotatably connected to the transport frame 2 through the crossbars 61. A belt 62 is mounted between the transport wheels 6. The spacing between the belts 62 is adjusted by a movable transport frame 2, thereby accommodating PCBA boards of different sizes.

[0028] The transport mechanism 5 includes a transport motor 51, which is mounted on the workbench 1. A splined shaft 52 is mounted at the output end of the transport motor 51. A sliding rod 53 is slidably mounted on the splined shaft 52. A gear a 531 is fixedly mounted on the sliding rod 53, and a gear b 532 is fixedly mounted on the crossbar 61. Gears a 531 and b 532 mesh with each other. The sliding rod 53 is rotatably mounted at one end of the transport frame 2. The transport mechanism 5 drives the transport wheels 6.

[0029] When the transport motor 51 is started, the spline shaft 52 rotates, which drives the sliding rod 53 to rotate. With the meshing transmission of gears a531 and b532, the crossbar 61 rotates, which in turn drives the transport wheel 6 to rotate. Through the linkage of belt 62, the PCBA board placed on the transport wheel 6 is transported along the transport frame 2 and delivered to the inspection position.

[0030] The adjustment mechanism 4 includes an adjustment motor 41, which is mounted on the workbench 1. An adjustment screw 42 is provided at the output end of the adjustment motor 41. The adjustment screw 42 is threadedly connected to the transport frame 2, which is slidably mounted on the workbench 1. Adjustment rails 43 are provided on both sides of the workbench 1, and the transport frame 2 is slidably connected to the workbench 1 through the adjustment rails 43.

[0031] The adjustment mechanism 4 is used to adjust the distance between the transport frames 2. The adjustment motor 41 of the adjustment mechanism 4 is located on the worktable 1, and its output adjustment screw 42 is threadedly connected to the transport frame 2 that is slidably mounted on the worktable 1. Adjustment rails 43 are provided on both sides of the worktable 1, and the transport frame 2 is slidably connected to the worktable 1 through the adjustment rails 43. When dealing with PCBA boards of different sizes, the adjustment motor 41 is started, the adjustment screw 42 rotates, and the transport frame 2 slides along the adjustment rails 43, changing the distance between the transport frames 2 to adapt to the transportation needs of PCBA boards of different sizes.

[0032] The workbench 1 is provided with mounting frames 32 on both sides. A movable frame 31 is slidably mounted on the mounting frame 32. The detection head 3 is slidably mounted on the movable frame 31. A longitudinal motor 8 is provided on the mounting frame 32. A longitudinal screw 81 is provided at the output end of the longitudinal motor 8. The longitudinal screw 81 is threadedly connected to one end of the movable frame 31. A longitudinal rail 82 is provided on the mounting frame 32. The movable frame 31 is slidably mounted on the mounting frame 32 via the longitudinal rail 82.

[0033] A transverse motor 7 is installed on the moving frame 31. A transverse screw 71 is installed at the output end of the transverse motor 7. The transverse screw 71 is threadedly connected to the detection head 3. A transverse track 72 is installed on the moving frame 31. The detection head 3 is slidably connected to the moving frame 31 through the transverse track 72.

[0034] It should be noted that this PCBA board solder joint visual inspection equipment involves the transportation of the PCBA board. The worktable 1 has multiple transport frames 2, one of which is fixed to the worktable 1, while the other is slidably mounted on the worktable 1. Transport wheels 6 are installed at both ends of the transport frame 2 and are rotatably connected to the transport frame 2 via crossbars 61. A belt 62 is provided between the transport wheels 6 to ensure coordinated rotation. The transport mechanism 5 drives the transport wheels 6, and its core component, the transport motor 51, is located on the worktable 1. A sliding rod 53 is slidably mounted on the splined shaft 52 at the motor output end. Gear a531 fixed on the sliding rod 53 meshes with gear b532 fixed on the crossbar 61. The sliding rod 53 is rotatably mounted at one end of the transport frame 2. When the transport motor 51 is started, the splined shaft 52 rotates, driving the sliding rod 53 to rotate. Through the meshing transmission of gear a531 and gear b532, the crossbar 61 rotates, which in turn drives the transport wheel 6 to rotate. Through the linkage of belt 62, the PCBA board placed on the transport wheel 6 is transported along the transport frame 2, and the PCBA board is delivered to the testing position.

[0035] When dealing with PCBA boards of different sizes, the adjustment mechanism 4 plays a role in adjusting the distance between the transport frames 2. The adjustment motor 41 of the adjustment mechanism 4 is located on the worktable 1, and the adjustment screw 42 at its output end is threadedly connected to the transport frame 2 that is slidably set on the worktable 1. At the same time, adjustment rails 43 are set on both sides of the worktable 1, and the transport frame 2 is slidably connected to the worktable 1 through the adjustment rails 43. When the adjustment motor 41 is started, the adjustment screw 42 rotates, and the transport frame 2 will slide along the adjustment rails 43, thereby changing the distance between the transport frames 2 to adapt to the transportation needs of PCBA boards of different sizes. By setting the sliding rod 53 that is slidably set on the spline shaft 52, the movement of the transport wheel 6 will not be affected when the transport motor 51 is started.

[0036] For the inspection of PCBA board solder joints, a movable frame 31 is slidably mounted on the mounting brackets 32 on both sides of the workbench 1. The inspection head 3 is slidably mounted on the movable frame 31. In the longitudinal direction, after the longitudinal movement motor 8 on the mounting bracket 32 ​​is started, the longitudinal movement screw 81 at its output end rotates. Since the longitudinal movement screw 81 is threadedly connected to one end of the movable frame 31, and the movable frame 31 is slidably mounted on the mounting bracket 32 ​​via the longitudinal movement rail 82, the movable frame 31 will slide longitudinally along the longitudinal movement rail 82 on the mounting bracket 32, driving the inspection head 3 to achieve longitudinal position adjustment, so as to accurately align with different longitudinal positions on the PCBA board. For solder joints, in the lateral direction, the transverse motor 7 on the moving frame 31 is started, and the transverse screw 71 at its output end rotates. Since the transverse screw 71 is threadedly connected to the detection head 3, and the detection head 3 is slidably connected to the moving frame 31 through the transverse track 72, the detection head 3 will slide laterally on the moving frame 31 along the transverse track 72, thereby realizing the position adjustment of the detection head 3 in the lateral direction, ensuring that the solder joints at different lateral positions on the PCBA board can be fully covered for detection. Through the coordinated work of the above components and mechanisms, the detection equipment can efficiently and accurately perform detection operations on solder joints of PCBA boards of different sizes.

[0037] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A PCBA board solder joint visual inspection device, comprising a worktable (1) and an inspection head (3) disposed on the worktable (1), characterized in that: The workbench (1) is provided with multiple transport racks (2), and the transport racks (2) are provided with transport wheels (6); It also includes: Adjustment mechanism (4), which is set on the workbench (1), adjusts the distance between the transport racks (2); The transport mechanism (5) is set on the workbench (1) and the transport wheel (6) is driven by the transport mechanism (5).

2. The PCBA board solder joint visual inspection equipment according to claim 1, characterized in that: One of the transport frames (2) is fixedly mounted on the workbench (1), and the other transport frame (2) is slidably mounted on the workbench (1). The transport wheels (6) are mounted at both ends of the transport frame (2), and crossbars (61) are provided at both ends of the transport frame (2). The transport wheels (6) are rotatably connected to the transport frame (2) through the crossbars (61), and a belt (62) is provided between the transport wheels (6).

3. The PCBA board solder joint visual inspection equipment according to claim 2, characterized in that: The transport mechanism (5) includes a transport motor (51), which is mounted on the workbench (1). The output end of the transport motor (51) is provided with a spline shaft (52). A sliding rod (53) is slidably mounted on the spline shaft (52). A gear a (531) is fixedly mounted on the sliding rod (53). A gear b (532) is fixedly mounted on the crossbar (61). The gear a (531) and the gear b (532) mesh with each other. The sliding rod (53) is rotatably mounted at one end of the transport frame (2).

4. The PCBA board solder joint visual inspection equipment according to claim 2, characterized in that: The adjustment mechanism (4) includes an adjustment motor (41), which is mounted on the workbench (1). An adjustment screw (42) is mounted on the output end of the adjustment motor (41). The adjustment screw (42) is threadedly connected to the transport frame (2) which is slidably mounted on the workbench (1). Adjustment rails (43) are mounted on both sides of the workbench (1), and the transport frame (2) is slidably connected to the workbench (1) via the adjustment rails (43).

5. The PCBA board solder joint visual inspection equipment according to claim 1, characterized in that: The workbench (1) is provided with mounting frames (32) on both sides. A movable frame (31) is slidably mounted on the mounting frame (32). The detection head (3) is slidably mounted on the movable frame (31). A longitudinal movement motor (8) is provided on the mounting frame (32). A longitudinal movement screw (81) is provided at the output end of the longitudinal movement motor (8). The longitudinal movement screw (81) is threadedly connected to one end of the movable frame (31). A longitudinal movement rail (82) is provided on the mounting frame (32). The movable frame (31) is slidably mounted on the mounting frame (32) via the longitudinal movement rail (82).

6. The PCBA board solder joint visual inspection equipment according to claim 5, characterized in that: A transverse motor (7) is provided on the moving frame (31), and a transverse screw (71) is provided at the output end of the transverse motor (7). The transverse screw (71) is threadedly connected to the detection head (3). A transverse track (72) is provided on the moving frame (31), and the detection head (3) is slidably connected to the moving frame (31) through the transverse track (72).

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