Automotive Heat Shield Assembly

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Project Details

Automotive Tier 1 suppliers are under constant pressure to reduce manufacturing costs and deliver the highest quality while ensuring a safe working environment. Quality and consistency are closely monitored, with severe penalties for deviations or late deliveries. As a result, these suppliers are among the highest users of robotic and technical automation, employing highly skilled and technically-minded staff.

Selective removal of human elements from the manufacturing process is a proven strategy for improving competitiveness. However, technology integration must be carefully planned. MESH believes that a collaborative approach, combined with a thorough technical review of component design and raw material variability, is critical to successful automation.

In this case study, the customer required an automated machine to feed automotive heat shields (five types), rivet two angle brackets, insert and press three fastener/washer/bushing stacks, and offload a finished product. To meet labor input targets, the machine needed to be manned by one operator per shift, achieve an 85% OEE, and meet a cycle rate of 18 seconds.

After a thorough process review with the customer and an understanding of the raw material variability, MESH designed and built a machine that accomplished these tasks.

Automation Equipment on Fastening Section

  • Three bowl feeders for fasteners, bushings, flat washers, and spring washers
  • One Epson G3 350 SCARA robot with vision guidance for assembly of the fastener stack with a special end-of-arm tool
  • Rockwell CompactLogix Controller with PanelView Plus 6, 700 color, touch screen
  • Special indexing conveyor for feeding the fastener stack into presses
  • Quantity three MESH-designed autofeed presses for press-fitting the fastener stack into the heat shield (three for cycle rate purposes)

Automation Equipment for Angle Brackets

  • Two bowl feeders for angle brackets and rivets
  • Two KUKA KR 6 R900 robots for pick, place, and position
  • Dorner infeed and outfeed index conveyors with special quick-change tooling
  • Two Keyence vision cameras for part inspection
  • Two MESH-designed press/riveter stations

Machine Performance

  • Capacity Requirement: 18 seconds per piece
  • Expected Utilization Rate: 24 hours / 7 days
  • Equipment Availability: Greater than 85%
  • Changeover Time: Pushbutton changeover except for product-specific tooling; tooling changeover to take 15 minutes or less