Processing method of pcb board
A processing method and PCB board technology, applied in the field of PCB board manufacturing, can solve problems such as unfavorable large-scale processing and increase manufacturing costs, and achieve the effect of facilitating large-scale processing and reducing costs
Active Publication Date: 2017-04-12
NEW H3C TECH CO LTD
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Problems solved by technology
[0004] Although the design of special-shaped pins solves the problem of absorbing lateral extrusion force after crimping, it not only increases the manufacturing cost, but also is not conducive to large-scale processing
Method used
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[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below through specific embodiments and with reference to the accompanying drawings.
[0027] In order to solve the problem in the prior art that special-shaped pins need to be provided to eliminate the lateral extrusion force, the embodiment of the present invention provides a PCB board processing method, see image 3 ,include:
[0028] Drilling the crimping hole 12; generally, the diameter of the crimping hole 12 is selected to be 3-7 mm, depending on actual needs. The diameter of the crimping hole 12 here needs to be determined according to the diameter of the crimping needle in actual use, that is, it needs to be smaller than the diameter of the crimping needle to ensure that there is enough space between the crimping needle and the hole wall when crimping. Friction, so that the device is firmly fixed on the PCB. General...
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The invention discloses a machining method for a PCB. The machining method comprises the following steps of drilling a pressing connection hole and drilling auxiliary holes, wherein the auxiliary holes are distributed along the peripheral direction of the hole wall of the pressing connection hole, the axis of the pressing connection hole is parallel to the axis of the auxiliary holes, and the hole wall of the pressing connection hole is intersected with the hole walls of the auxiliary holes. The pressing connection hole is coaxially formed with the circumference where the auxiliary holes are distributed. According to the machining method for the PCB, the auxiliary holes are formed in the periphery of the pressing connection hole in the PCB, and extrusion and deformation space is reserved for the pressing connection hole. During pressing and connection, the special-shape design of a pressing connection pin is not required, and transverse extrusion force can be absorbed through the pressing connection hole of the PCB. Due to the fact that cost of drilling the holes is far less than manufacturing cost of the special-shaped pin, compared with the prior art, the cost is reduced, and it is favorable for large-scale machining in the technical scheme of the machining method for the PCB. The invention further discloses the PCB manufactured through the method.
Description
technical field [0001] The invention relates to the technical field of PCB board manufacturing, in particular to a method for processing a PCB board. Background technique [0002] When assembling devices on the PCB, a crimping process is generally used, that is, the device pins are pressed into the PCB holes by external force. When crimping, in order to fix the crimping pins into the holes of the PCB, the peripheral dimensions of the crimping pins are generally designed to be larger than the PCB aperture. After the crimping pins are pressed into the PCB holes, the PCB holes can be A lateral extrusion force is generated to increase the friction between the crimping pin and the PCB hole wall, thereby fixing the crimping pin in the PCB hole. [0003] The existence of lateral extrusion force will inevitably lead to deformation of PCB holes or crimping pins. Therefore, in the prior art, the crimping pin 2 is usually designed as a special shape, and the elastic structure is form...
Claims
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IPC IPC(8): H05K3/00H05K1/00
Inventor 朱海鸥
Owner NEW H3C TECH CO LTD