Case Study - COMPONENTS SUB-ASSEMBLY LINE

Components Sub-Assembly Line

A customer in the automotive industry needed a second assembly line to handle increased production volume.

TCA's challenge was to use as much engineering as possible from the existing TCA-designed line so the two could efficiently run in tandem. Working from the customer's part specifications, we created 3D designs for all the components and arranged the second line in a Z-configuration to facilitate loading and changeover. In addition, we designed a second flux supply line with a separate set of tooling to enable both lines to operate independently.

Occupying a 20 ft x 30 ft footprint, this assembly line has three main subsystems - a feeder, flux applicator, and a stacker. Handling 6 parts per magazine, 6-axis robots are used to feed the parts to a servo index conveyor for pick and place transfer - a careful process monitored by machine vision cameras.

Next, a dual-head spray system electrostatically applies the flux while a reclaiming system removes the excess. After air drying, the parts are fed to the assembly system, 2 per magazine in a nested position.
This assembly line underwent full functional testing as well as a 4 hour dry-cycle test before it was shipped to the customer in Mexico. In addition to supervising the site installation, our engineers supplied full documentation as well as operator training that encompassed.

HIGHLIGHTS

PROJECT DESCRIPTION

This assembly line is the second assembly line of its type and was made to use as much engineering from the existing line as possible.

CAPABILITIES APPLIED / PROCESSES

Design & Layout

  • 3D Design of all components using SolidWorks
  • Configure Line in a "Z" Configuration for ease of Loading and Changeover
  • Supply Line w/ a Complete Set of Tooling
  • Design All Tooling
  • Design Separate Path through the System

Manufactured in-house using our CAD/CAM equipment and capabilities

PLC programming

HMI Design & Programming

Supervision of Site Installation

System Commissioning

Operator Training

  • Technical Features and Specifications
  • Operation Training
  • Recommended Maintenance
  • Changeover Procedure
  • Recommended Fault Recovery

Documentation

  • Hard-Copy & CD-ROM Copies of Manuals
  • AutoCAD Assembly Drawings & Schematics

SYSTEM FEATURES

Tooling ID 2D Barcodes & Barcode Readers

TESTING/INSPECTION PERFORMED

Dry Cylce Testing

  • 4-Hour Dry Cycle Test

Functional Testing

OVERALL LEAD TIME

30 Weeks

SYSTEM SECTIONS & COMPONENTS

Automated Parts Feed System

  • 6 Parts Feed Rotary Dial Magazines
  • 6 Axis Robot
  • Parts Feed Servo Index Conveyor
  • Walking Beam Load Pick & Place Transfer
  • Cognex Insight 5100 Vision Cameras
  • Lexan Perimeter Guarding
  • Electrically Interlocked Access Doors

Flux Application System

  • Electrostatic Flux Application System
  • 2 Flux Spray Head Mounting Arrangements
  • Reclaim System to Return Excess Flux
  • Air Dryer part Stacking System
  • 6-Axis Robot
  • Recirculating Pallet Transfer System
  • 2 Parts Feed Rotary Dial Magazines
  • Intermediate 2-up Nest Position
  • Pick and Place Unit
  • Stacking Guide
  • Recirculating Assembly Build Conveyor

Electrical Control System

  • Allen Bradley GuardLogix PLC
  • 3 Allen Bradley PanelView Plus 1000 Operator Interfaces
  • Main Control Panel

SEQUENCE OF OPERATIONS

Singulate and Feed Components

Load Parts in Predetermined Sequence 

Apply Flux to Specified Parts Group and Assemble Components in Predetermined Sequence

OVERALL SYSTEM DIMENSIONS

20 ft x 30 ft