Multi-Operation SPM

Drilling Milling Reaming SPM

Multi-station automated special purpose machine for bearing cap drilling, milling, and reaming in a synchronized 19.5-second cycle.

Project Overview

High-Precision Multi-Operation Machining

The Drilling, Milling & Reaming SPM is a rugged, automated production station engineered by Tri-Dot Solution specifically for automotive bearing caps. By combining three essential machining processes on a single synchronized platform, it drastically cuts production cycle time and floor space requirements.

The machine utilizes a heavy-duty Support L-Structure base and a Walking Beam mechanism with servo slide, seamlessly transferring bearing caps through drilling, milling, and precision reaming stations with high positioning repeatability.

Featuring integrated Pick & Place automation and intelligent PLC programming, the entire operation completes in just 19.5 seconds per component.

Drilling Milling Reaming SPM
Engineering Elements

Machine Architecture & Subsystems

Heavy Support L-Structure

Stress-relieved, rigid steel base structure designed to absorb machining vibrations and maintain micrometer-level accuracy.

  • High torsional rigidity
  • Precision CNC machined mounting pads
  • Vibration dampening design

Walking Beam with Servo Slide

Precision servo-driven walking beam system moves components simultaneously across consecutive machining stations.

  • Synchronized multi-station transfer
  • Servo controlled stroke & acceleration
  • Hardened guide ways & ball screws

Pick & Place Automation

Dedicated automated loading and unloading arm ensures safe, continuous part feeding without manual operator handling.

  • Pneumatic/servo gripper mechanism
  • In-feed conveyor synchronization
  • Part orientation confirmation

Drilling & Reaming Spindles

High-torque motorized spindles with precision quill feeds for fast hole drilling followed by micron-finish reaming.

  • Variable speed frequency drive
  • Tool breakage detection
  • Automated lubrication & coolant

Milling Unit

Rigid milling slide configured for face milling and slotting on bearing caps with high flatness and parallelism.

  • Heavy-duty spindle bearings
  • Chip evacuation & splash guard
  • Quick tool change setup

PLC Programming & HMI

Advanced PLC sequence programming with touch HMI for recipe management, cycle monitoring, and alarm logging.

  • Intuitive diagnostics & alarms
  • Production & tool life counters
  • Dual safety circuit protection
Performance Metrics

Technical Specifications

19.5s
Cycle Time: 19.5 Sec

Simultaneous processing across stations yields a finished machined bearing cap every 19.5 seconds.

3-in-1
Drill, Mill & Ream

Complete machining operations integrated into one compact footprint without inter-machine buffering.

Auto
Walking Beam + P&P

Zero operator handling during machining ensures uniform repeatable quality and minimal cycle loss.

Key Benefits

Why Invest in this SPM

Eliminates Multiple Machine Setups – Single SPM replaces 3 independent machines.
High Accuracy & Repeatability – Component clamped in precision fixtures.
Faster Output – 19.5-sec cycle delivers over 180 parts/hour.
Lower Labor Cost – Fully automated loading, transfer, and unloading.
Space Optimization – Compact L-frame fits tight factory floor plans.
Project Summary

Machine Specifications

  • Application: Auto Drilling, Milling, Reaming SPM
  • Component: Bearing Cap (Automotive / Industrial)
  • Cycle Time: 19.5 Seconds / Component
  • Transfer Mechanism: Walking Beam with Servo Slide
  • Automation: Pick & Place Unit with Custom Grippers

Engineered by Tri-Dot Solution

Custom-built special purpose machinery designed to overcome manufacturing bottlenecks with precision automation.

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