The utility model provides a chip removal board, which is characterized by a plate body, a plate body comprising several working areas, a rectangular array distribution of the working area, a positioning hole around the working area, a circular groove on the inner wall of the positioning hole, a chip removal groove on the lower surface of the plate body, parallel and equal spacing of the chip removal groove, a closed end of the chip removal groove, an open end of the chip removal groove, and chip removal. The slot covers the working area, and the width of the chip removal groove increases gradually from the closed end to the open end, and the two sides of the chip removal groove are protruded with convex strips. The utility model has the advantages of: a chip removal groove is arranged on the lower surface of the chip removal board, and the width of the chip removal groove increases gradually from the closed end to the open end, debris and garbage are easily discharged from the open end during cleaning; and a ring-shaped depression in the middle of the positioning hole is left for In the next certain space, the positioning hole is not easy to be damaged; there are convex bars in the middle of the debris removal groove, and the debris will be concentrated when it falls out of the debris removal groove and will not dissipate.
【技术实现步骤摘要】
一种排屑板
本技术涉及PCB加工,尤其涉及一种排屑板。
技术介绍
随着印制电路板的高密度化,板的层数越来越多、孔深径比越来越大,其钻削过程的排屑不畅现象越严重,传统的普通木浆板排屑槽容易变形,不能重复多次使用,且排屑槽底部不通,不利于吸走粉屑,排屑的不顺畅会使钻削过程切屑对钻针及孔壁的严重挤压,从而发生钻针偏斜及孔壁质量差等问题。
技术实现思路
本技术的目的是提供一种排屑板。为了实现上述目的,本技术的技术方案是:一种排屑板,其特征在于,它包括板体,所述板体包括若干工作区,所述工作区呈矩形阵列状分布,每一工作区的四个角分别设有一定位孔,所述定位孔贯穿板体设置,所述板体的下表面设有若干排屑槽,所述排屑槽平行且等间距设置,所述排屑槽的一端为密闭端,所述密闭端与板体的一端存在间距,所述排屑槽的另一端延伸至板体的另一端,所述排屑槽的另一端为开口端,所述排屑槽覆盖工作区设置,所述排屑槽的宽度由密闭端至开口端逐渐增大,所述排屑槽两侧的内壁向中央凸出设有一对凸条,所述凸条位于排屑槽的中部。本技术的优点在于:排屑板下表面设置排屑槽,排屑槽的宽度由密闭端至开口端逐渐增大,清洗时碎屑和垃圾易于从开口端排出;定位孔的中部向外侧环形凹陷,为定位孔与定位柱留下一定空间,定位孔不易损伤;排屑槽中部设有凸条,碎屑从排屑槽掉出时较集中,不会散逸。附图说明图1为本技术的正面结构示意图;图2为本技术的背面结构示意图;图3为本技术的侧面结构示意图;图4为本技术中定位孔的侧截面结构示意图;图5为本技术中排屑槽的侧截面结构示意图。附图标记:1板体2工作区3定位孔4环状凹陷5排屑槽501密闭端502开口端6凸 ...
【技术保护点】
1.一种排屑板,其特征在于,它包括板体,所述板体包括若干工作区,所述工作区呈矩形阵列状分布,每一工作区的四个角分别设有一定位孔,所述定位孔贯穿板体设置,所述板体的下表面设有若干条排屑槽,所述排屑槽平行且等间距设置,所述排屑槽的一端为密闭端,所述密闭端与板体的一端存在间距,所述排屑槽的另一端延伸至板体的另一端,所述排屑槽的另一端为开口端,所述排屑槽覆盖工作区分布,所述排屑槽的宽度由密闭端至开口端逐渐增大。
【技术特征摘要】
1.一种排屑板,其特征在于,它包括板体,所述板体包括若干工作区,所述工作区呈矩形阵列状分布,每一工作区的四个角分别设有一定位孔,所述定位孔贯穿板体设置,所述板体的下表面设有若干条排屑槽,所述排屑槽平行且...
【专利技术属性】
技术研发人员:张春生,郑玉柱,
申请(专利权)人:上海凯思尔电子有限公司,
类型:新型
国别省市:上海,31
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