FPC reinforcement detection mechanism

Abstract

The utility model discloses an FPC (Flexible Printed Circuit) reinforcement detection mechanism, which is used for completely detecting a product without damaging the product. The FPC reinforcement detection mechanism comprises a machine table, and an electric test device and a thickness detection device which are arranged on the machine table, a lower die of the electrical testing device is provided with a positioning plate used for positioning and placing a product to be tested, an upper die of the electrical testing device can ascend and descend relative to the lower die and is provided with a probe, and the probe achieves electric conduction when making contact with a bonding pad to be tested of the product to be tested. The thickness detection device comprises a bottom plate arranged on the machine table in a matched mode, bearing pedestals installed on the two sides of the bottom plate, bearings installed on the bearing pedestals, and a rolling shaft matched with the bearings in a rotating mode. And the distance between the rolling shaft and the bottom plate is adjusted to the thickness of the product to be detected plus the thickness of one reinforcing sheet.

Description

TECHNICAL FIELD

[0001] The utility model belongs to flexible circuit board processing technical field, especially point to a kind of FPC reinforcing detection mechanism. BACKGROUND

[0002] FPC reinforcing refers to the measures to reinforce or enhance Flexible Printed Circuit (FPC). Flexible Printed Circuit is a kind of flexible circuit board, which is widely used in electronic products. Reinforcing usually involves adding materials or structures to some parts of FPC to improve its mechanical strength, durability and reliability, especially in occasions that require frequent bending or bear large mechanical stress.

[0003] In the prior art, reinforcing is usually carried out by punching. However, FPC reinforcing may fail due to various reasons, resulting in reinforcing missing, misalignment, repeated bonding, etc. In the industry, artificial reinspection is usually used to reinspect 100% of the punched reinforcing, which has the disadvantages of low efficiency and low reinspection accuracy, and may cause defective products to flow out of the production line, resulting in problems such as inability to assemble at the customer end and insufficient product thickness support leading to whole machine failure. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a FPC reinforcing detection mechanism to solve the problems in the prior art and perform 100% full inspection without damaging the product.

[0005] To achieve the above purpose, the solution of the utility model is as follows:

[0006] A FPC reinforcing detection mechanism includes a machine table, an electrical testing device and a thickness detection device arranged on the machine table. The lower die of the electrical testing device is provided with a positioning plate for positioning the product to be tested. The upper die can move up and down relative to the lower die and is provided with a probe. When the probe contacts the test pad of the product to be tested, it realizes conduction. The thickness detection device includes a base plate fitted on the machine table, bearing seats installed on both sides of the base plate, bearings installed on the bearing seats, and a roller shaft in rotational cooperation with the bearings. The distance between the roller shaft and the base plate is adjusted to the thickness of the product to be tested plus a reinforcing sheet.

[0007] The positioning plate includes a carrier plate for carrying the product to be tested, and a pressing plate arranged above the carrier plate for limiting the product to be tested. The distance between the carrier plate and the pressing plate is matched with the thickness of the product to be tested, and the pressing plate is provided with a perforation corresponding to the position of the test pad of the product to be tested.

[0008] The lower surface of the upper die is provided with a moving plate and guide rods around the moving plate, and guide sleeves corresponding to the guide rods are arranged on the moving plate.

[0009] The bearing seat is fixed to the bottom plate by at least two threaded rods.

[0010] Preferably, the upper end of the threaded rod is rotatably connected with the bearing seat, and the lower end of the threaded rod is threadedly connected with the bottom plate.

[0011] After the above technical scheme is adopted, the utility model has the following technical effects:

[0012] The electric testing device and the thickness detecting device can quickly and accurately detect abnormal conditions of the to-be-tested product after reinforcement, specifically, when the to-be-tested product is fixed on the positioning plate and the electric testing device is started, if the to-be-tested product is normal, the to-be-tested pads at the corresponding positions will be covered by the reinforcing sheet and cannot contact the probe, so that there is no reinforcing missing or mispositioning; after electric testing, the qualified products pass through the thickness detecting device, because the distance between the roller and the bottom plate is equal to the thickness of the to-be-tested product plus a reinforcing sheet, the normal products with repeated bonding can be pushed to pass through the roller and the bottom plate, and the abnormal products with repeated bonding cannot pass through; thus, the simple detecting mechanism can realize quick and accurate reinforcement detection, and improve the efficiency and the product yield. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The figure is a structural schematic diagram of a specific embodiment of the utility model;

[0014] Figure 2 The figure is a partial structural schematic diagram of the electric testing device of a specific embodiment of the utility model;

[0015] Figure 3 The figure is a structural schematic diagram of the thickness detecting device of a specific embodiment of the utility model;

[0016] Figure 4 The figure is a use schematic diagram of the thickness detecting device of a specific embodiment of the utility model;

[0017] Explanation of reference numerals:

[0018] 1 - machine table;

[0019] 2 - electric testing device; 21 - lower die; 211 - positioning plate; 22 - upper die; 221 - probe; 222 - moving plate; 223 - guide rod; 224 - guide sleeve;

[0020] 3 - thickness detection device; 31 - base plate; 32 - bearing seat; 33 - roller; 34 - screw rod;

[0021] a - product to be tested; b - pad to be tested. DETAILED DESCRIPTION

[0022] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0023] Reference Figures 1-4 As shown in the figure, the utility model discloses a kind of FPC reinforcing detection mechanism, including machine table 1, and electric testing device 2 and thickness detection device 3 being set on machine table 1;

[0024] The lower mould 21 of electric testing device 2 is provided with positioning plate 211 for positioning the product to be tested a, and the upper mould 22 can be lifted relative to the lower mould 21, and is provided with probe needle 221, and when probe needle 221 contacts the pad to be tested b of the product to be tested a, it realizes conduction, which indicates that there is reinforcing missing or mispositioning;

[0025] Thickness detection device 3 includes base plate 31 cooperating on machine table 1, bearing seat 32 installed on both sides of base plate 31, bearing installed on bearing seat 32, and roller 33 rotating with bearing;The distance between roller 33 and base plate 31 is adjusted to the thickness of the product to be tested a plus a piece of reinforcing sheet.

[0026] Through the above scheme, the utility model can quickly and accurately detect the abnormal condition that may exist in the product to be tested a after reinforcing through electric testing device 2 and thickness detection device 3;Specifically, when the product to be tested a is fixed on positioning plate 211 and electric testing device 2 is started, if the product to be tested a is normal, the pad to be tested b at the corresponding position will be covered by reinforcing sheet and cannot contact probe needle 221, so there will be no reinforcing missing or mispositioning;After electric testing, qualified products are detected by thickness detection device 3, see Figure 4 Because the distance between roller 33 and base plate 31 is equal to the thickness of the product to be tested a plus a piece of reinforcing sheet, normal products without repeated bonding can be pushed through between roller 33 and base plate 31, and abnormal products with repeated bonding cannot pass through;Therefore, simple detection mechanism can realize quick and accurate reinforcing detection, improve efficiency and product yield.

[0027] The specific embodiments of the utility model are shown below.

[0028] The positioning plate 211 comprises a carrier plate 2111 for carrying the product a to be tested, and a pressing plate 2112 arranged above the carrier plate 2111 for limiting the product a to be tested, a space matching the thickness of the product a to be tested is reserved between the carrier plate 2111 and the pressing plate 2112 to prevent the product a to be tested from being damaged, and the pressing plate 2112 is provided with a through hole 2113 corresponding to the position of the pad b to be tested of the product a to be tested. The pressing plate 2112 can ensure that the product a to be tested does not move on the upper surface of the carrier plate 2111 during the test.

[0029] The lower surface of the upper mold 22 is provided with a moving plate 222, and guide rods 223 are arranged around the moving plate 222, and the moving plate 222 is provided with guide sleeves 224 corresponding to the positions of the guide rods 223, and the guide sleeves 224 are sleeved on the guide rods 223; the detection needle 221 is arranged on the lower surface of the moving plate 222.

[0030] The bearing seat 32 is fixed on the bottom plate 31 through at least two screw rods 34, the upper end of the screw rod 34 is rotationally connected with the bearing seat 32, and the lower end of the screw rod 34 is threadedly connected with the bottom plate 31. The height of the bearing seat 32 can be adjusted by screwing the screw rod 34, so that the distance between the roller shaft 33 and the bottom plate 31 can be adjusted, and products and reinforcing sheets of different thicknesses can be adapted.

[0031] The embodiments and drawings are not limited to the product form and style of the utility model, and any ordinary skilled person in the art can make appropriate changes or modifications, which should be considered as not departing from the patent category of the utility model.

Claims

1. An FPC reinforcement testing mechanism, characterized in that: Includes a machine base, and an electrical testing device and a thickness detection device installed on the machine base; The lower mold of the electrical testing device is provided with a positioning plate for positioning and placing the product under test. The upper mold can move up and down relative to the lower mold and is provided with a probe. When the probe contacts the test pad of the product under test, it achieves conductivity. The thickness detection device includes a base plate fitted on the machine platform, bearing seats mounted on both sides of the base plate, bearings mounted on the bearing seats, and rollers that rotate with the bearings; the distance between the rollers and the base plate is adjusted to the thickness of the product to be tested plus a reinforcing sheet.

2. The FPC reinforcement testing mechanism as described in claim 1, characterized in that: The positioning plate includes a carrier plate for supporting the product under test, and a pressure plate disposed above the carrier plate for limiting the position of the product under test. A gap matching the thickness of the product under test is reserved between the carrier plate and the pressure plate, and the pressure plate is provided with a through hole corresponding to the position of the pad to be tested of the product under test.

3. The FPC reinforcement testing mechanism as described in claim 1, characterized in that: The lower surface of the upper mold is provided with a movable plate and guide rods located around the movable plate. A guide sleeve is provided on the movable plate at a position corresponding to the guide rod, and the probe is provided on the lower surface of the movable plate.

4. The FPC reinforcement testing mechanism as described in claim 1, characterized in that: The bearing housing is fixed to the base plate by at least two screws.

5. The FPC reinforcement testing mechanism as described in claim 4, characterized in that: The upper end of the screw is rotatably engaged with the bearing seat, and its lower end is threadedly connected to the base plate.

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