JNP Co., Ltd

NP Tip Grinding Automation Automation of NP tip Polishing

Content

Process summary: Tip vibratory bowl feeder → alignment conveyor → servo Cartesian robot pick-up → 2-axis spindle grinding → finished-part discharge & collection
Key configuration: Vibratory bowl feeder + servo Cartesian robot + 2-axis precision spindle + transfer trays + automatic discharge unit
Benefits: fully unmanned NP tip grinding process / 2× productivity with dual-axis simultaneous grinding / no jig changeover required

Process Overview

✔ Bowl feeder supply → alignment conveyor → servo Cartesian robot pick-up → 2-axis spindle grinding → finished-part discharge — the entire process is fully automated
✔ Dual-axis simultaneous grinding delivers 2× throughput per unit time — a major productivity gain over a single-axis setup
✔ Automatically handles various NP tip shapes without jig changeover — zero setup time

Process Flow

Bowl Feeder Supply

Vibratory alignment

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Conveyor Alignment

Orientation transfer

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Robot Pick-up

Servo Cartesian robot

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2-Axis Spindle Grinding

Simultaneous precision grinding

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Part Discharge

Auto tray stacking

Key Components

Vibratory Bowl Feeder + Alignment Conveyor A stainless-steel circular bowl feeder automatically feeds NP tips along a spiral track by vibration. The connected alignment conveyor orients the tips consistently before transferring them to the next process. Feeding / Alignment	Servo Cartesian Robot (XYZ Gantry) An aluminum-profile X/Y/Z-axis gantry structure with servo-driven linear guides. A compact gripper precisely picks up tips and transfers them at high speed to the 1st/2nd transfer trays and the spindle jig. Transfer / Handling
2-Axis Precision Spindle Grinding Unit Two yellow high-speed spindle motors arranged side by side grind two NP tips simultaneously. Diamond grinding wheels contact the tip surface while a fine coolant spray (blue flexible nozzle) controls heat. Grinding / Machining	Transfer Trays (1st / 2nd) Black anodized aluminum trays travel left and right on linear rails. The 1st tray holds tips awaiting grinding and the 2nd tray holds finished tips; both circulate automatically in sync with the robot. Transfer / Buffer
Finished-Part Discharge Unit Ground NP tips are automatically stacked onto the black discharge tray. The robot picks up finished parts and discharges them into a transparent collection bin; the bin is replaced batch by batch to allow continuous operation. Discharge / Collection	Aluminum-Profile Frame Cell The entire process is integrated within an aluminum-profile open-frame cell. The internal structure can be checked visually from the outside, and modular expansion and layout changes are easy. Structure / Frame

Benefits & Applications

Benefits

✔ Unmanned across feeding, alignment, grinding, and discharge
✔ Dual-axis simultaneous grinding — 2× throughput
✔ Automatically handles multi-shape tips without jig changeover
✔ 24-hour continuous operation maximizes productivity
✔ Uniform grinding quality — independent of operator skill

Applications

· Automatic grinding of NP diamond tips
· Post-processing automation for small precision tool tips
· Surface grinding of diamond segments
· High-volume grinding lines for cemented-carbide sintered tips

PRODUCTS & SOLUTIONS

Precision Tool Machining JNP Co., Ltd