Patch detection device of circuit board

Abstract

The utility model discloses a patch detection device of a circuit board, which comprises a heat preservation box body and a conveying belt, the side wall of the heat preservation box body is provided with a feeding port, the discharging section of the conveying belt is connected with the feeding port on the heat preservation box body, and a support is arranged in the heat preservation box body. An output shaft of a gear motor installed on the support is connected with the center of a rotary disc rotatably installed on the support, and a plurality of supporting frames distributed at equal intervals in the circumferential direction are installed on the edge of the rotary disc capable of rotating around the center of the rotary disc. The other end of the supporting frame with one end connected with the rotary disc extends outwards in the radial direction of the rotary disc and is provided with a connecting frame, the lower end of the connecting frame with the upper end rotationally connected with the supporting frame is provided with a storage carrying base, and the side, facing the feeding port, of the horizontally-arranged storage carrying base is provided with a feeding notch matched with the discharging section of the conveying belt. According to the utility model, the automatic conveying and connection of products can be realized, and the heating uniformity of the products can be improved, so that the testing efficiency, precision and consistency are improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, and in particular to a patch testing device for circuit boards. Background Technology

[0002] External defects in PCB components can be detected using X-ray technology, but temperature adaptability testing requires manual sampling of products at a certain ratio. These products are then manually transferred to a fixed-temperature environment for inspection. Existing testing equipment suffers from uneven heating or cooling in the test area, leading to significant deviations between the constant temperature at different points within the test area and the preset temperature. This, in turn, results in substantial inaccuracies in the test results for the PCB. Utility Model Content

[0003] The purpose of this invention is to provide a surface mount testing device for circuit boards. This device can automatically transport and connect products, and improve the uniformity of product heating, thereby improving the efficiency, accuracy and consistency of testing.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a circuit board surface mount testing device, comprising: an insulated box with a feed inlet on its side wall and a conveyor belt, wherein the unloading section of the conveyor belt is connected to the feed inlet on the insulated box, a bracket is provided inside the insulated box, the output shaft of a geared motor mounted on the bracket is connected to the center of a turntable rotatably mounted on the bracket, a plurality of support frames equally spaced along the circumference are installed on the edge of the turntable which can rotate around its center, the other end of the support frame connected to the turntable at one end extends radially outward along the turntable and is equipped with a connecting frame, a placement seat is installed at the lower end of the connecting frame which is rotatably connected to the support frame at its upper end, and a feeding notch that cooperates with the unloading section of the conveyor belt is opened on the side of the horizontally arranged placement seat facing the feed inlet.

[0005] The following are further improvements to the above technical solution:

[0006] 1. In the above scheme, a counterweight is installed on the lower surface of the storage carrier.

[0007] 2. In the above scheme, the counterweight is a thermally conductive metal block.

[0008] 3. In the above scheme, the support frame includes a first support part and a second support part respectively disposed on both sides of the turntable, and the connecting frame is rotatably installed between the ends of the first support part and the second support part away from the turntable via a support shaft.

[0009] 1. In the above solution, the connecting frame includes a first connecting part and a second connecting part that are respectively connected to both ends of the support shaft. The upper ends of the first connecting part and the second connecting part are rotatably fitted onto the support shaft, and the lower ends of the first connecting part and the second connecting part are connected to the storage carrier.

[0010] 5. In the above scheme, both the first connecting part and the second connecting part are inverted V-shaped connecting parts.

[0011] 6. In the above scheme, a temperature controller is installed on the side wall of the box opposite to the inlet.

[0012] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0013] This utility model discloses a circuit board surface mount testing device. A support frame is installed inside the insulation chamber. The output shaft of a geared motor mounted on the support frame is connected to the center of a turntable rotatably mounted on the support frame. Several circumferentially spaced support frames are installed along the edge of the turntable, which can rotate around its center. One end of each support frame connected to the turntable extends radially outward along the turntable and is fitted with a connecting frame. A placement carrier is installed at the lower end of the connecting frame, which is rotatably connected to the support frame. The horizontally positioned placement carrier has a feeding notch on its side facing the inlet, which mates with the unloading section of the conveyor belt. This allows for automatic transport and connection of products, improves the uniformity of product heating, and thus enhances testing efficiency, accuracy, and consistency. Furthermore, a counterweight is installed on the lower surface of the placement carrier to ensure that the carrier remains horizontal under gravity, guaranteeing the stability of the product as it rotates. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the surface mount testing device for the circuit board of this utility model;

[0015] Appendix Figure 2 This is a schematic diagram of the internal structure of the heat preservation box in the chip mounting inspection device for circuit boards of this utility model;

[0016] Appendix Figure 3 This is a bottom view of a partial structure of the chip mounting detection device for the circuit board of this utility model.

[0017] In the attached diagrams: 1. Feed inlet; 2. Insulated box; 3. Support frame; 4. Turntable; 5. Gear motor; 6. Support frame; 61. First support part; 62. Second support part; 63. Support shaft; 7. Connecting frame; 71. First connecting part; 72. Second connecting part; 8. Storage seat; 81. Feed notch; 9. Counterweight; 10. Temperature controller; 11. Conveyor belt. Detailed Implementation

[0018] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0019] Example 1: A circuit board surface mount testing device includes: an insulated box 2 with a feed inlet 1 on its side wall and a conveyor belt 11. The unloading section of the conveyor belt 11 is connected to the feed inlet 1 on the insulated box 2. A bracket 3 is provided inside the insulated box 2. The output shaft of a geared motor 15 mounted on the bracket 3 is connected to the center of a turntable 4 rotatably mounted on the bracket 3. Several support frames 6 are installed at equal intervals along the circumference at the edge of the turntable 4, which can rotate around its center. The other end of the support frame 6, which is connected to the turntable 4 at one end, extends outward along the radial direction of the turntable 4 and is equipped with a connecting frame 7. The lower end of the connecting frame 7, which is rotatably connected to the support frame 6 at its upper end, is equipped with a placement seat 8. The horizontally arranged placement seat 8 has a feeding notch 181 on the side facing the feed inlet 1 that cooperates with the unloading section of the conveyor belt 11.

[0020] A counterweight 9 is installed on the lower surface of the aforementioned storage carrier 8, which ensures that the storage carrier remains stable in a horizontal state during rotation. The counterweight 9 is a heat-conducting metal block, which can increase the heat exchange efficiency between the product inside the storage carrier and the outside, and further improve the uniformity of product heating.

[0021] The aforementioned support frame 6 includes a first support portion 61 and a second support portion 62 respectively disposed on both sides of the turntable 4. The connecting frame 7 is rotatably mounted between the ends of the first support portion 61 and the second support portion 62 that are away from the turntable 4 via a support shaft 63.

[0022] A temperature controller 10 is installed on the side wall of the aforementioned box 12 opposite to the feed inlet 1. The aforementioned conveyor belt and temperature controller are both purchased externally and fall within the scope of existing technology, so they will not be described in detail here.

[0023] During use, the products fall sequentially from the inlet into the storage seats inside the insulated chamber, achieving automatic connection of qualified products. The geared motor drives multiple storage seats to rotate at a slow speed, ensuring that the products in each storage seat can be heated evenly, thus guaranteeing the accuracy of the final inspection results. By adjusting the temperature inside the insulated chamber through the temperature controller, the usage scenario of the circuit board in a harsh environment can be simulated.

[0024] Example 2: A circuit board surface mount testing device, comprising: an insulated box 2 with a feed inlet 1 on its side wall and a conveyor belt 11, wherein the unloading section of the conveyor belt 11 is connected to the feed inlet 1 on the insulated box 2, a bracket 3 is provided inside the insulated box 2, the output shaft of a geared motor 15 mounted on the bracket 3 is connected to the center of a turntable 4 rotatably mounted on the bracket 3, a plurality of support frames 6 are installed at equal intervals along the circumference at the edge of the turntable 4 which can rotate around its center, the other end of the support frame 6 connected to the turntable 4 extends radially outward along the turntable 4 and is equipped with a connecting frame 7, the lower end of the connecting frame 7 which is rotatably connected to the support frame 6 at its upper end is equipped with a placement seat 8, and the horizontally arranged placement seat 8 has a feeding notch 181 on the side facing the feed inlet 1 that cooperates with the unloading section of the conveyor belt 11.

[0025] The aforementioned support frame 6 includes a first support portion 61 and a second support portion 62 respectively disposed on both sides of the turntable 4. The connecting frame 7 is rotatably mounted between the ends of the first support portion 61 and the second support portion 62 that are away from the turntable 4 via a support shaft 63.

[0026] The connecting frame 7 includes a first connecting part 71 and a second connecting part 72 that are respectively connected to both ends of the support shaft 63. The upper ends of the first connecting part 71 and the second connecting part 72 are rotatably fitted onto the support shaft 63, and the lower ends of the first connecting part 71 and the second connecting part 72 are connected to the storage seat 8. The first connecting part 71 and the second connecting part 72 are both inverted V-shaped connecting parts.

[0027] When using the above-mentioned circuit board surface mount testing device, it can realize automatic transportation and connection of products, improve the uniformity of product heating, thereby improving the efficiency, accuracy and consistency of testing; in addition, it can ensure that the placement carrier always remains horizontal under the action of gravity, ensuring the stability of the product during the rotation of the placement carrier.

[0028] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A surface mount inspection device for circuit boards, comprising: An insulated box (2) with a feed inlet (1) on its side wall and a conveyor belt (11) are provided. The unloading section of the conveyor belt (11) is connected to the feed inlet (1) on the insulated box (2). The insulated box (2) is characterized by having a support (3) inside. The output shaft of a geared motor (15) mounted on the support (3) is connected to the center of a turntable (4) rotatably mounted on the support (3). The turntable (4) rotatable around its center is equipped with a support at its edge. There are several support frames (6) evenly distributed along the circumference. One end of the support frame (6) is connected to the turntable (4). The other end of the support frame (6) extends outward along the radial direction of the turntable (4) and is equipped with a connecting frame (7). The lower end of the connecting frame (7) is rotatably connected to the support frame (6). The horizontally arranged placing frame (8) has a feeding notch (181) on the side facing the feed inlet (1) that cooperates with the feeding section of the conveyor belt (11).

2. The circuit board surface mount inspection device according to claim 1, characterized in that: A counterweight (9) is installed on the lower surface of the storage carrier (8).

3. The circuit board surface mount inspection device according to claim 2, characterized in that: The counterweight (9) is a thermally conductive metal block.

4. The circuit board surface mount inspection device according to claim 1, characterized in that: The support frame (6) includes a first support part (61) and a second support part (62) respectively disposed on both sides of the turntable (4). The connecting frame (7) is rotatably mounted between the ends of the first support part (61) and the second support part (62) away from the turntable (4) via a support shaft (63).

5. The circuit board surface mount inspection device according to claim 4, characterized in that: The connecting frame (7) includes a first connecting part (71) and a second connecting part (72) respectively connected to both ends of the support shaft (63). The upper ends of the first connecting part (71) and the second connecting part (72) are rotatably fitted onto the support shaft (63), and the lower ends of the first connecting part (71) and the second connecting part (72) are connected to the storage carrier (8).

6. The circuit board surface mount inspection device according to claim 5, characterized in that: Both the first connecting part (71) and the second connecting part (72) are inverted V-shaped connecting parts.

7. The circuit board surface mount inspection device according to claim 1, characterized in that: A temperature controller (10) is installed on the side wall of the box (12) opposite to the feed inlet (1).

Images