FPC golden finger butt joint detection equipment

Abstract

The utility model belongs to the technical field of electric detection, and relates to FPC (Flexible Printed Circuit) golden finger butt joint detection equipment, which comprises a supporting table, a main body carrier plate, a detection part carrier plate, a detection assembly, a bracket, a pressing cylinder and a pressing block, the main body carrier plate and the detection part carrier plate are adjacently arranged at the front part of the supporting table, the bracket is straddled at the rear part of the supporting table, a main body positioning groove is formed in the main body carrier plate, and a detection part positioning groove is formed in the detection part carrier plate; the detection assembly comprises a detection PCB, a sliding block and an air cylinder, a horizontal sliding rail is arranged on the supporting table, the detection PCB is fixed to the upper portion of the sliding block, the air cylinder drives the sliding block to move along the horizontal sliding rail, and a PCB golden finger is arranged on the side, close to the detection part positioning groove, of the upper surface of the detection PCB. The height difference between the bottom surface of the detection part positioning groove and the bottom surface of the main body positioning groove is greater than the thickness of the detected PCB; the pressing cylinder is fixed to the upper portion of the support and drives the pressing block downwards. According to the equipment, performance detection accidents are realized, and the surface of the FPC is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical detection, in particular to an FPC gold finger docking detection device. Background Art

[0002] Flexible circuit board, referred to as soft board or FPC, is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the substrate. It has the characteristics of high wiring density, light weight and thin thickness.

[0003] During the functional test of FPC, the gold fingers need to be connected to the external power supply circuit and other test circuits, so the detection equipment usually uses elastic probes to connect to the gold fingers of FPC to form a power supply and detection circuit. Figure 1 The FPC 1 shown in the figure includes a main body 11, a detection unit 12 and an FPC gold finger 13. Here, the structure of the detection unit 12 is wrapped around from one end of the main body 11 to the top of the main body 11, and the FPC gold finger 13 is located at the end of the detection unit 12 facing the main body 11. There are three problems in using an elastic probe to detect the function of the FPC 1 with this special structure:

[0004] 1. The FPC gold finger 13 is hidden inside the structure. When the FPC 1 is in the unfolded state, the main body 11 will prevent the elastic probe from contacting the FPC gold finger 13;

[0005] 2. When the elastic probe contacts the FPC gold finger 13, there will be a floating distance greater than the thickness of FPC1. Once the elastic probe is off-center, it will not only scratch the surface of the FPC gold finger 13, but may also cause irreversible needle points on the FPC 1 itself.

[0006] 3. The elasticity of FPC 1 itself will make it difficult for the elastic probe to contact the correct position on the FPC gold finger 13, which will cause a series circuit or a short circuit, making the detection impossible.

[0007] Therefore, it is necessary to improve the detection equipment to solve the above problems. Summary of the invention

[0008] The main purpose of the utility model is to provide an FPC gold finger docking detection device, which can dock the gold fingers of the FPC after it is unfolded, and avoid damage to the surface of the FPC when the performance detection is unexpected.

[0009] The utility model achieves the above-mentioned purpose through the following technical solutions: an FPC gold finger docking detection device, including a support platform, a main body carrier, a detection part carrier, a detection component, a bracket, a downward pressure cylinder and a pressure block;

[0010] The main body carrier plate and the detection unit carrier plate are adjacently arranged at the front of the support platform, the bracket straddles the rear of the support platform, the main body carrier plate is provided with the main body positioning groove, the detection unit carrier plate is provided with the detection unit positioning groove, and the bottom surface of the detection unit positioning groove is higher than the bottom surface of the main body positioning groove;

[0011] The detection assembly includes a detection PCB board, a slider and a cylinder. The support platform is provided with a horizontal slide rail. The detection PCB board is fixed to the upper part of the slider. The cylinder drives the slider to move along the horizontal slide rail. The upper surface of the detection PCB board is provided with a PCB gold finger on the side close to the detection part positioning groove. The height difference between the bottom surface of the detection part positioning groove and the bottom surface of the main body positioning groove is greater than the thickness of the detection PCB board. When placing the FPC, the cylinder makes the detection PCB board leave the upper projection range of the main body positioning groove.

[0012] The downward pressing cylinder is fixed to the upper part of the bracket and drives the pressing block downward.

[0013] Specifically, the detection assembly also includes a limit plate, which is fixed to the upper surface of the detection PCB board and has a notch that allows the PCB gold finger to be exposed upward, and the notch is open on a side facing the detection part positioning groove.

[0014] Furthermore, a pressing portion corresponding to the position of the PCB gold finger is provided at the bottom of the pressing block, and the notch avoids the pressing portion.

[0015] Specifically, the height difference between the bottom surface of the detection part positioning groove and the bottom surface of the main body positioning groove is greater than the thickness of the detection PCB board by 1-2 mm.

[0016] The beneficial effects of the technical solution of the utility model are:

[0017] 1. The height difference between the bottom surface of the detection part positioning groove and the bottom surface of the main body positioning groove allows the detection PCB board to extend between the main body of the FPC and the detection part, thereby achieving contact between the PCB gold finger and the FPC gold finger;

[0018] 2. The performance test of FPC is realized, and the elastic probe is abandoned, avoiding the problem of scratching the FPC gold finger and puncturing the FPC. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a partial three-dimensional diagram of the FPC.

[0020] Figure 2 This is a working state diagram of the detection device in the embodiment,

[0021] Figure 3 for Figure 2 A partial enlarged view of position A in the middle.

[0022] Figure 4 This is a diagram showing the positional relationship between the detection components, slide rails, and FPC detection unit during the inspection.

[0023] Figure 5 This is the detection principle diagram.

[0024] The numbers in the figure represent:

[0025] 1-FPC, 11-main body, 12-detection unit, 13-FPC gold finger;

[0026] 2- Testing equipment,

[0027] 21-support table, 211-slide rail,

[0028] 22-main body carrier plate, 221-main body positioning groove, 222-material removal notch,

[0029] 23- detection unit carrier plate, 231- detection unit positioning groove,

[0030] 24-detection component, 241-detection PCB board, 2411-PCB gold finger, 242-slider, 243-cylinder, 244-limit block,

[0031] 25- Bracket,

[0032] 26-Press down cylinder,

[0033] 27-pressing block, 271-pressing portion. DETAILED DESCRIPTION

[0034] The utility model is further described in detail below in conjunction with specific embodiments.

[0035] Example:

[0036] like Figure 2 As shown, an FPC gold finger docking detection device 2 of the present invention includes a support platform 21, a main body carrier plate 22, a detection part carrier plate 23, a detection component 24, a bracket 25, a downward pressure cylinder 26 and a pressure block 27.

[0037] like Figure 2 , Figure 3 and Figure 5 As shown, the main body carrier plate 22 and the detection unit carrier plate 23 are adjacently arranged at the front of the support platform 21, the bracket 25 straddles the rear of the support platform 21, the main body carrier plate 22 is provided with a main body positioning groove 221, and the detection unit carrier plate 23 is provided with a detection unit positioning groove 231. The bottom surface of the detection unit positioning groove 231 is higher than the bottom surface of the main body positioning groove 221.

[0038] Because the FPC 1 is soft, the main body 11 is placed in the main body positioning groove 221 while the detection part 12 can be placed in the detection part positioning groove 231. The height difference between the two bottom surfaces makes the main body 11 and the detection part 12 staggered in height, leaving space for the detection component 24 to detect.

[0039] like Figures 3 to 5 As shown, the detection assembly 24 includes a detection PCB board 241, a slider 242, a cylinder 243 and a limit plate 244. A horizontal slide rail 211 is provided on the support platform 21. The detection PCB board 241 is fixed to the upper part of the slider 242. The cylinder 243 drives the slider 242 to move along the horizontal slide rail 211. The upper surface of the detection PCB board 241 is provided with a PCB gold finger 2411 on the side close to the detection part positioning groove 231. The limit plate 244 is fixed to the upper surface of the detection PCB board 241 and has a notch for exposing the PCB gold finger 2411 upward. The notch is open on the side facing the detection part positioning groove 231. The height difference between the bottom surface of the detection part positioning groove 231 and the bottom surface of the main body positioning groove 221 is greater than the thickness of the detection PCB board 241, which is 1-2 mm. When placing the FPC 1, the cylinder 243 makes the detection PCB board 241 leave the upper projection range of the main body positioning groove 221.

[0040] The purpose of the cylinder 243 is to make the detection PCB board 241 clear the position above the main body positioning slot 221 when the FPC 1 is placed. The main body 11 and the detection part 12 must not only be staggered in height, but also need to be at a height that allows the detection PCB board 241 to extend between the two. The FPC gold finger 13 will extend from one side of the detection part positioning slot 231, and the notch on the limit block 244 has a positioning effect on the detection part 12. Only in this way can the PCB gold finger 2411 be opposite to the FPC gold finger 13 up and down, and at the same time make the conductive surfaces of the two gold fingers face each other, thus avoiding the interference of the main body 11 position on the detection. However, at this time, the PCB gold finger 2411 and the FPC gold finger 13 are not fully in contact.

[0041] like Figure 2 and Figure 5 As shown, the downward pressure cylinder 26 is fixed to the upper part of the bracket 25 and drives the pressing block 27 downward. The bottom of the pressing block 27 is provided with a pressing portion 271 corresponding to the position of the PCB gold finger 2411, and the notch avoids the pressing portion 271.

[0042] When the PCB gold finger 2411 is aligned with the FPC gold finger 13, the pressing block 27 is pressed downward, and the pressing portion 271 enters the notch and acts on the upper surface of the detection portion 12, so that the FPC gold finger 13 is pressed against the PCB gold finger 2411 to make a corresponding conductive connection, and the performance test of the FPC 1 can be completed. The elastic probe is abandoned here, thereby avoiding the problem of scratching the FPC gold finger 13 and piercing the FPC 1.

[0043] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An FPC gold finger docking detection device, characterized in that: It includes a support platform, a main body carrier plate, a detection part carrier plate, a detection component, a bracket, a downward pressure cylinder and a pressure block; The main body carrier plate and the detection unit carrier plate are adjacently arranged at the front of the support platform, the bracket straddles the rear of the support platform, the main body carrier plate is provided with a main body positioning groove, the detection unit carrier plate is provided with a detection unit positioning groove, and the bottom surface of the detection unit positioning groove is higher than the bottom surface of the main body positioning groove; The detection assembly includes a detection PCB board, a slider and a cylinder. The support platform is provided with a horizontal slide rail. The detection PCB board is fixed to the upper part of the slider. The cylinder drives the slider to move along the horizontal slide rail. The upper surface of the detection PCB board is provided with a PCB gold finger on the side close to the detection part positioning groove. The height difference between the bottom surface of the detection part positioning groove and the bottom surface of the main body positioning groove is greater than the thickness of the detection PCB board. When placing the FPC, the cylinder makes the detection PCB board leave the upper projection range of the main body positioning groove. The downward pressure cylinder is fixed to the upper part of the bracket and drives the pressing block downward.

2. The FPC gold finger docking detection device according to claim 1, characterized in that: The detection assembly also includes a limit plate, which is fixed to the upper surface of the detection PCB board and has a notch for exposing the PCB gold finger upward, and the notch is open on a side facing the detection part positioning groove.

3. The FPC gold finger docking detection device according to claim 2, characterized in that: A pressing portion corresponding to the position of the PCB gold finger is provided at the bottom of the pressing block, and the notch avoids the pressing portion.

4. The FPC gold finger docking detection device according to claim 1, characterized in that: The height difference between the bottom surface of the detection part positioning groove and the bottom surface of the main body positioning groove is greater than the thickness of the detection PCB board by 1-2 mm.

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