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Processing method of ultra-short slot of circuit board

A processing method and circuit board technology, applied in metal processing, printed circuit, printed circuit manufacturing, etc., can solve problems such as slot knife offset, slot knife force unevenness, ultra-short slot deformation, etc., to avoid slot holes Deformation and the effect of improving machining accuracy

Pending Publication Date: 2022-03-08
广东依顿电子科技股份有限公司
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AI Technical Summary

Problems solved by technology

[0002] At present, ultra-short slots in PCB circuit boards are usually processed by pre-drilling cutters and keyway milling cutters. This processing method mainly has the following two problems: First, when drilling slots, the slot cutter usually The force will be uneven, causing the slot knife to shift to the direction of the small force, which will lead to the deformation of the ultra-short slot hole; second, when the number of layers of the PCB board is higher, the force difference will be greater, resulting in ultra-short slot holes. The deformation of short slots is more serious

Method used

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  • Processing method of ultra-short slot of circuit board

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Embodiment Construction

[0019] The features of the present invention and other relevant features are described in further detail below through the embodiments, so as to facilitate the understanding of those skilled in the art:

[0020] Such as figure 1 Shown, a kind of processing method of the ultra-short slot hole of circuit board, comprises the following steps:

[0021] Step 1: Use a pre-drilling knife to drill the lower hole 2 on the circuit board 1;

[0022] Step 2: use the end mill to align the center of the lower hole 2 and feed downward, and mill to form the first circular hole 3;

[0023] Step 3: use the end mill to carry out rough machining and milling with the center of the first round hole 3 as the starting point and feed outward along a straight line to form the second slot hole 4;

[0024] Step 4: Use a keyway milling cutter to finish and trim the edge of the second slot 4 to finally form the third slot 5 .

[0025] As mentioned above, the processing method of this case first uses the...

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Abstract

The invention discloses a processing method of an ultra-short slotted hole of a circuit board. The processing method comprises the following steps: step 1, drilling a lower cutter hole on the circuit board by using a pre-drilling cutter; secondly, an end mill is used for aligning the center of the lower cutter hole to conduct downward feeding, and a first round hole is formed through milling; thirdly, an end mill is used for conducting rough machining and milling by conducting outward feeding along a straight line with the center of the first round hole as the starting point, and a second slotted hole is formed; and fourthly, the key groove milling cutter is used for conducting finish machining and trimming on the edge of the second groove hole, and finally a third groove hole is formed.

Description

technical field [0001] The invention relates to a processing method for an ultra-short slot hole of a circuit board. Background technique [0002] At present, ultra-short slots in PCB circuit boards are usually processed by pre-drilling cutters and keyway milling cutters. This processing method mainly has the following two problems: First, when drilling slots, the slot cutter usually The force will be uneven, causing the slot knife to shift to the direction of the small force, which will lead to the deformation of the ultra-short slot hole; second, when the number of layers of the PCB board is higher, the force difference will be greater, resulting in ultra-short slot holes. Short slots deform more severely. [0003] Therefore, how to overcome the above existing defects has become an important issue to be solved urgently by those skilled in the art. Contents of the invention [0004] The present invention overcomes the deficiency of above-mentioned technology, provides ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26F1/16H05K3/00
CPCB26F1/16H05K3/0047
Inventor 杨坤
Owner 广东依顿电子科技股份有限公司
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