Thick-bottom copper PCB drilling machine
By combining a variable pitch structure with pulsed airflow from the jet nozzle on the drilling equipment, the problem of roughness of the hole wall caused by copper chip entanglement was solved, achieving rapid chip removal and improved hole wall smoothness, thereby enhancing the stability and continuous operation capability of the equipment.
CN224074536UActive Publication Date: 2026-04-03KAIPING ELEC & ELTEK NO 3 CO LTD
0 Cites 0 Cited by
Patent Information
- Application Number
- CN202520810311.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-03
- Estimated Expiration
- 2035-04-27
AI Technical Summary
Technical Problem
When drilling thick copper layers, existing drilling equipment tends to produce long, continuous copper chips, resulting in excessively rough hole walls and even scratching the inner insulation layer, which can lead to short circuit risks.
Method used
The drill bit with variable pitch structure, combined with the pulse airflow of the jet nozzle, forces chip breaking and impacts the borehole wall. Combined with the funnel-shaped drain plate and inclined groove structure, it enables the unobstructed sliding and rapid discharge of chips.
Benefits of technology
It effectively reduces the friction and adhesion of debris to the hole wall, improves the smoothness of the hole wall and the continuous operation capability of the equipment, and reduces the risk of short circuits.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to the technical field of PCB processing equipment, in particular to a thick-bottom copper PCB drilling machine which comprises a protective shell, a window, a first electric guide rail, a workbench, a first moving part, a fixed part, a drilling machine and the like. A window is mounted on the protective shell, a first electric guide rail and a workbench are mounted in the protective shell, a first moving part is mounted on the first electric guide rail, a fixing part is fixedly connected to the first moving part, a drilling machine is mounted on the fixing part, a drill bit is mounted on the drilling machine, and a variable pitch structure is arranged on a cutting section of the drill bit. The tooth pitch gradually changes from 0.8 mm at the front end to 1.2 mm at the rear end, a second electric guide rail is installed at the top end of the workbench, and a second moving piece is installed on the second electric guide rail. According to the utility model, chips are forcibly broken through a variable-pitch structure of the drill bit and are matched with pulse airflow impact of the air nozzle, so that friction and adhesion of the chips to a hole wall are reduced.
Need to check novelty before this filing date? Find Prior Art