Auto Insertion machine – Clinching problem Troubleshooting guide for Electronic manufacturing PCBA

Troubleshooting Clinch Problems

The following paragraphs will detail various clinch problems and the procedures required to resolve these problems. The types of problems presented include clinch form problems and clinch functional problems.

ClinchFormProblems

The following presents various form problems that may be encountered, the general cause of the problem and the resolution of the problem.

Problem:LeadLengthsNotEqual(VCDandJumperWire)

(VCDpictured.)

Cause

Clinch to Head X direction misalignment.

PossibleResolution

Realign Clinch to Head. Refer to Clinch to Head Alignment Procedure. Cutter Set Up (clinch angle) might need to be readjusted.

Problem: Unequal Lead Angle (VCD Only)

(VCDpictured.)

Cause

Cutter linkage not adjusted properly.

PossibleResolution

Adjust leads to desired angles. Refer to Cutter Set Up procedure.

Problem: Clinch Leads Toed – Same Direction (VCD and Jumper
Wire)

INCORRECT CORRECT
(VCD pictured.)
Cause
Clinch to head Y direction misalignment.
Possible Resolution
Realign Clinch to Head. Refer to Clinch to Head Alignment procedure.
Problem: Clinch Leads Toed – Opposite Directions (VCD and
Jumper Wire)

(VCD pictured.)
Cause
Clinch not aligned to head.
Possible Resolution
Realign Clinch to Head. Refer to Clinch to Head Alignment Procedure.

Problem:MisformedLead(s)withPossibleBurr(VCDOnly)

(VCDpictured.)

Cause

Worn cutter or cutter bushing.

PossibleResolution

Inspect and replace cutter and cutter bushing.

Problem:MisformedLead–Various(VCDOnly)

(VCDpictured.)

Cause

Lead hitting anvil/bushing.

PossibleResolution

Realign Clinch to Head. Refer to Clinch to Head Alignment Procedure.

Problem: Clinch Not Tight to Board (VCD and Jumper Wire)


(VCD pictured.)
Cause
Anvil height too low.
Possible Resolution
Readjust anvil height. Refer to Anvil Height Adjustment procedure.
Cause
Improper dimensions for the component in the Component Database.
Possible Resolution
Measure the component, and fix the component definition

ClinchFunctionalProblems

The following presents various functional problems that may be encountered, the general cause of the problem and the resolution of the problem.

Clinch Functional Problems
Problem Cause Possible Resolution
1 Motion fault on insertion head. Anvil setting too high. Reset anvilheight. Refer toAnvil Height

Adjustmentprocedure.

2 Motion fault onanvil up. Cutter backstroke too large. Reset cutter backstroke. Refer to Cutter

procedure.

Servo Amplifier problems. Refer to Servo Chassis Assembly documentation Status Code
troubleshooting charts.
Wiring problems. Repair or replacefaulty wiring.
3 Machine status “Waiting for Cutter In” Cutter cylinder binding. Worn O-rings, lubrication. Repair, replace and lubricate O-rings.
Pneumatic valve/solenoid failure. Repair or replace valve/solenoid.
Failed/pinched pneumatic lines. Repair or replacefaulty pneumatic lines.
Wiring problems. Repair or replacefaulty wiring.
Cutter timing stroke greater than 45 msecs. Check IM Diagnostics Rapid Motion Timing

and adjust to 35-45 msecs.

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