- Build a battery-pack product-family matrix to identify variants that can share the manipulator and those requiring dedicated modules.
- Standardize the quick-change platform’s locating, locking, pneumatic, electrical and identification interfaces.
- Cross-check the vehicle model, gripper, recipe and receiving fixture instead of relying only on scanning a code.
- After changeover, verify position, leak tightness, identification, unloaded operation and the first piece.
Handling battery packs for different wheelbases, capacities and structures on a shared line requires matching the vehicle model, gripper, mechanical interface, utility connections and control recipe together. Configure the system by product family and block mismatches before lifting to prevent incorrect contact, housing damage or failed placement.
01Define compatibility with a product-family matrix
Compare each pack's weight, dimensions, center of gravity, lifting points or load-bearing areas, locating datums, housing stiffness, interface protection and orientation. Similar load paths may share a frame with adjusted supports or contact blocks; substantial differences require separate modules.
The product matrix must cover minimum, maximum and worst-case combinations. For future models, distinguish reserved interfaces from the verified compatibility scope. An interface reservation does not establish compatibility.
02Five quick-change interfaces
- Mechanical location: provide repeatable positioning and capacity for the specified load and moment.
- Mechanical locking: make locking status clear and detectable, with retention that does not depend solely on continuous air pressure.
- Pneumatic and vacuum connections: prevent incorrect mating, provide reliable seals, control residual pressure during disconnection and protect fittings.
- Electrical and signal connections: connect sensors, identification and controls while preventing incorrect mating and cable tension.
- Identification: assign each module a unique ID linked to its products and recipes.
03Include storage racks in error-proofing
Use fixed storage positions, clear identifiers and stable supports for module racks. Mechanical keys, position sensors or electronic identification may manage retrieval and return. Keep locating faces, suction cups, connectors, sensors and hoses clear of storage contact to prevent damage while offline.
04Combining identification methods
| Identification method | Advantages | Considerations |
|---|---|---|
| Mechanical coding/keying | Intuitive and prevents physical misinstallation | Limited combinations; inspect for wear |
| Sensor combination | Direct input to control logic | Diagnose broken wires, stuck contacts and conflicting states |
| Barcode/QR code | Low cost and clear information | Reliance on manual scanning and label readability |
| RFID | Automatic reading, no line of sight required | Manage reading range, damaged tags and duplicate reads |
| Production-system assignment | Can be associated with scheduling and traceability | Enter a defined safe state on communication loss |
For high-risk actions such as lifting, cross-check the production model, module identity, mechanical locking and critical contact states. A single identification signal cannot independently provide motion permission.
05Match all four configuration elements
Before operation, verify the vehicle model, installed gripper module, current parameter recipe and target tooling or pallet. If any item does not match, keep clamping, lifting and release inhibited and display the specific mismatch.
Alarms should identify the item requiring correction, for example, “Model B / current gripper A mismatch.” Control maintenance and bypass actions by permission and record them. Do not routinely bypass error-proofing to meet cycle time.
06Standard changeover process
- Stop the cycle, unload the tooling and move it to the specified changeover position.
- Place the old module in its designated storage position and confirm stable support, then isolate or release the relevant energy and unlock the interface.
- Withdraw the master-side interface only after confirming that the storage rack securely supports the old module.
- Take the target module and complete positioning, locking and pneumatic and electrical connections.
- The system reads the module identity and verifies it against the target model and recipe.
- Check interface engagement, leak tightness, sensors and unloaded functions.
- Verify first-piece gripping, travel, turning and placement before releasing production.
07Control recipe versions and access
Recipes may manage balancing parameters, motion sequences, vacuum or pressure decisions, flip angles, position prompts and cycle time. Retain the version, reason, approval and verification records for changes. Use controlled design for critical safety logic, and do not make thresholds freely adjustable by routine operators.
08Quick-change verification matrix
| Test condition | Expected response | Records |
|---|---|---|
| Correct model + correct gripper | Self-test complete; operation permitted | Status records and first article results |
| Correct model + wrong gripper | Hazardous motions inhibited; specific alarm displayed | Interlock test record |
| Tooling not fully locked | No lifting or flipping allowed | Position and locking tests |
| Pneumatic/electrical interface disconnected | Fault detected; recoverable state maintained | Disconnect test |
| Identification or communication interruption | No fallback to an incorrect default recipe | Fault injection record |
| New model | Load, path and abnormal-condition verification completed | Model verification report |
Shared-line capability is established through product families, module interfaces and information consistency. Verify each battery pack with its corresponding gripper, recipe and tooling as a combination. Add new variants to production only after load, path and abnormal-condition tests are complete.
