Stamped Rivet and Hole Diameter Inspection
Inspects rivets and hole diameters on stamped metal parts in-line, judging diameter, position and presence against tolerance.
Solution Overview
A single integrated visual inspection machine that replaces manual visual checking of stamped part appearance, rivets and hole diameters
The metal stamping rivet and hole diameter inspection equipment is an integrated visual inspection system used to check product appearance, missing rivets and whether hole diameters are acceptable. The equipment consists of a loading inspection platform, a visual inspection system, a backlight inspection module, an NG/OK diverting mechanism, an automatic unloading and handling mechanism and an industrial PC human-machine interface, with an overall flow of "manual loading + automatic visual inspection + automatic sorting". Backlighting is used to enhance the hole contours, improving hole diameter inspection accuracy and the stability of edge recognition.
The core objective of the solution is to automatically inspect the quality of stamped parts with machine vision, Replaces Manual Visual Inspection, improving inspection efficiency and consistency. Inspection scope includes appearance inspection of stamped parts, checking whether rivets are missing, and hole diameter measurement.
The equipment uses a combination of industrial cameras + light sources for inspection and is fitted with a backlight inspection module. The motion mechanism includes a traverse module, a single-axis motion platform, and a moving backlight platform, used to achieve product positioning, coordinated scanning of the camera and the workpiece, and automated cycle-time operation; OK products are automatically transferred and unloaded by a vacuum suction cup together with a rodless cylinder.
Solution configuration
Inspection, imaging, motion and unloading — four modules that make up one integrated inspection machine
Visual Inspection System
- Industrial camera + light source combination
- Rivet presence
- Hole position anomalies
- Hole diameter out of tolerance, appearance defects
Backlight Inspection
- Backlighting enhances the hole position contour
- Improves hole diameter inspection accuracy
- Improve edge recognition stability
- Moving backlight platform works with scanning
Motion Mechanism
- Traverse Module
- Single-Axis Motion Platform
- Moving Backlight Platform
- Product positioning and coordinated camera-workpiece scanning
Automatic Unloading Mechanism
- Vacuum Suction Cup
- Rodless Cylinder
- Automatic handling and unloading of OK products
- Supports automatic transfer of OK products to the production line
process Workflow
Manual loading + automatic visual inspection + automatic sorting form a stable cycle
- 01 Manual loading onto the inspection platform
- 02 Two-hand start buttons confirm the start
- 03 The platform moves to the inspection area
- 04 Vision system completes inspection
- 05 OK: automatically transferred to the production line
- 06 NG: Return to manual position
- 07 Operator removes the part and places it in the NG bin
- 08 Proceed to Next Cycle
Critical Stages
Backlight imaging and automatic sorting determine hole diameter measurement accuracy and machine cycle time
Backlight Inspection and Hole Diameter Measurement
Hole diameter dimensional inspection is a function newly added to this solution on top of the existing appearance and rivet inspection. Backlighting enhances the hole position contour and improves hole diameter inspection accuracy and edge recognition stability; measurement is then completed by a moving backlight platform scanning in coordination with the camera.
- Backlighting enhances the hole position contour
- Improves hole diameter inspection accuracy
- Improve edge recognition stability
- Moving backlight platform works with the camera scan
OK / NG Sorting and Automatic Unloading
After inspection, the products are routed by result: OK products are transferred automatically by a vacuum chuck with a rodless cylinder and conveyed to the production line; NG products return to the manual position, where an operator takes them out and places them in the NG bin, after which the next cycle begins.
- OK products: automatically handled and transferred to the production line
- NG products: returned to the manual station to be removed by an operator
- Vacuum suction cups + rodless cylinder for automatic transfer
- Automated inspection, sorting and unloading
equipment Specifications and Structure
The equipment type, dimensions, specifications and structural composition given in the solution
| Item | Content |
|---|---|
| Equipment Type | One integrated visual inspection equipment set |
| Equipment Composition | Loading and inspection platform · Vision inspection system · Backlight inspection module · NG/OK diverting mechanism · Automatic unloading and transfer mechanism · Industrial PC and HMI |
| Equipment Dimensions | Length 1900 mm × Width 1650 mm × Height 1800 mm |
| Control Method | Industrial PC |
| Voltage | 220V ± 10% |
| Air pressure | 0.5 ~ 0.7 MPa |
| inspection item | Whether the rivet is present · whether the hole position is abnormal · whether the hole diameter is out of tolerance · appearance defects |
| Structural Modules | Vision camera · inspection light source · backlight platform · traverse module · vacuum handling mechanism · HMI · tri-color alarm light · dual start safety buttons · industrial PC control system |
| Applicable Scenarios | Hardware stamping parts · Automotive parts · Metal riveted parts · Structural parts with holes; especially suitable for high-volume production where escape must be prevented |
| Inspection accuracy and cycle time | [To be added] |
delivery and After-Sales
Starting from the workpiece and inspection items, the imaging solution and sorting actions are fixed into a machine
- 01 Confirm the workpiece and inspection items
- 02 Imaging solution and illumination validation
- 03 Solution design and simulation
- 04 Equipment manufacturing and integration
- 05 On-site installation and commissioning
- 06 Sample testing and parameter optimization
- 07 Acceptance, delivery and training
- 08 After-sales and spare parts support
Common Question
Common Questions About Rivet and Hole Diameter Inspection for Metal Stamped Parts
What items does this equipment inspect?
Inspection scope includes: Stamped part appearance inspection, Checking whether rivets are missing at rivet positions, Hole diameter size inspection. Hole diameter dimensional inspection is a new function in this version.
Why Is Backlight Used for Hole Diameter Inspection?
through Backlighting enhances the hole position contour, which can improve hole diameter inspection accuracy and edge recognition stability, making hole edges clearer in the image for easier measurement.
What are the dimensions and electrical specifications of the equipment?
Equipment dimensions are L 1900 mm × 1650 mm wide × 1800 mm high; control is via an industrial PC; voltage 220V ± 10%; air pressure 0.5 ~ 0.7 MPa.
How are loading and unloading carried out?
The overall process is "Manual loading + automatic visual inspection + automatic sorting": Manual placement of the part onto the inspection platform, with confirmation to start by pressing two start buttons; OK products are transported automatically by vacuum suction cups with a rodless cylinder and conveyed to the production line, while NG products return to the manual position for the operator to remove and place into the NG bin.
What parts make up the equipment?
Main modules include: vision camera, inspection light source, backlight platform, traverse module, vacuum handling mechanism, HMI, tri-color alarm light, dual-start safety buttons and an industrial PC control system.
What Scenarios Is It Suitable For?
Suitable for hardware stamped parts, automotive parts, metal riveted parts and structural parts with holes, and especially for High-volume production with strict requirements on escapes scenarios.
Related Solutions
Submit Samples and Requirements
Send us the workpiece drawing, equipment and site conditions, and a solution engineer will provide configuration recommendations.
Submitted successfully
We have received your sample testing request. A solution engineer will contact you within 1 business day via contact you.
Need to assess imaging conditions, defect criteria and cycle time item by item? Go to the Full Requirement Assessment →
Configured to Your Workpieces and Cycle Time
Send us the workpiece drawing, machine tool equipment and production cycle time, and our solution engineers will recommend the corresponding material bin type, picking method and inspection configuration.