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How to carry out daily maintenance on an automatic riveting machine? Maintenance items, cycle and common fault prevention
An automatic riveting machine is not structurally complex, yet its feed channel is precise and it runs continuously at high frequency; standardized maintenance clearly reduces the jam rate and extends the life of the gun body and wear parts. CHANRUI complete machines pass a 30,000-cycle continuous riveting test without jamming, with a long-term fault rate of about 0.3%, and a large share of that comes from customers carrying out daily maintenance by the book. This article provides a directly executable maintenance checklist.
I. Maintenance items and their cycle
| Cycle | Maintenance Task | Key Detail |
|---|---|---|
| Each shift/daily | Clean the nozzle, jaws, nail-receiving port and the equipment surface | Clear rivet debris, oil and dust, keeping the feed channel clean |
| Daily | Inspect the air source | Drain water from the filter, confirm stable air pressure, and make sure air tubes are undamaged and leak-free |
| Weekly | Lubricate moving parts | Apply the specified lubricant to sliding and moving parts according to the manual |
| Weekly | Inspect the vibratory bowl/hopper | Clear foreign matter from the bowl, ensure smooth sorting and sensitive sensors |
| Monthly | Check wear parts | Wear status of nozzle, jaws and ejector pin, replaced without delay |
| Quarterly | Full inspection | Tighten screws, inspect seals and electrical wiring, verify counting and alarm |
II. Key-part maintenance tips
Nozzle and jaws.These contact the rivet directly, and slight metal adhesion can appear when processing certain materials; clean them regularly to prevent thickened adhesion from affecting grip and break-off; over-worn jaws slip and cannot grip the mandrel and must be replaced without delay.
Feed channel and vibratory bowl.After switching rivet specifications, clear the channel thoroughly to prevent mixed rivets from jamming the tube; keep the vibratory bowl dry and oil-free, wipe sensor surfaces periodically, and avoid false missing-nail judgments.
Air circuit system.Drain accumulated water from the air compressor and filter cup daily; insufficient air pressure leads to weak feeding and incomplete riveting; avoid bending or crushing air tubes and fix leaking fittings promptly.
III. Common faults and their prevention
| Symptom | Typical Cause | Action/Prevention |
|---|---|---|
| Jamming, incomplete feeding | Foreign matter in channel, mixed-spec material, worn nozzle | Clear the channel, empty leftover rivets after a spec change, replace the nozzle |
| Mandrel won't break/rivet loose | Insufficient air pressure, worn jaws, pulling-force mismatch | Check air pressure, replace jaws, match rivet to model |
| Missed rivet, dry fire | Dirty sensor, nail-separation cycle drift | Clean the sensor, re-debug nail separation |
| Workpiece scratches | Metal adhesion on nozzle, operation alignment deviation | Clean the nozzle, standardize operation, add a protective sleeve |
IV. Tips for building maintenance habits
Turn "daily cleaning, weekly lubrication, monthly wear-part check" into an inspection sheet with assigned responsibility, and keep wear parts (nozzle, jaws, ejector pin) in stock according to usage to avoid line stoppage from purchasing only after a failure. CHANRUI wear parts are supplied long term at cost, and the manufacturer can provide on-site maintenance guidance, operation training and fault handling, with novices able to take post after brief training. For more systematic parts and after-sales notes, seeAutomatic Riveting Machine Maintenance and Parts Supply Guide。
V. Daily inspection sheet (printable directly)
| Frequency | Inspection Content | Pass/Fail |
|---|---|---|
| Before shift | Whether air pressure meets standard, nozzle and jaws are clean, and no-load feeding is smooth | [ ] OK [ ] Action |
| After shift | Empty leftover rivets, clean the gun head and nail-receiving port, shut off air and power, tidy the feed tube | [ ] OK [ ] Action |
| Weekly | Oil moving parts, clean the vibratory bowl, wipe sensors, inspect air-tube fittings for leaks | [ ] OK [ ] Action |
| Monthly | Inspect nozzle/jaw/ejector-pin wear, tighten screws, electrical wiring and alarm function | [ ] OK [ ] Action |
Spare-part advice: keep 1-2 sets of matching-spec nozzles and jaws in stock according to nozzle wear degree, doubled for two-shift or high-cycle lines; if a single piece shows continuous anomalies (such as repeated jamming at the same position), stop and inspect first rather than running with a fault, so as not to damage the gun body and workpiece. For faults you cannot clear yourself, keep a fault video and contact the manufacturer, which greatly shortens remote diagnosis time.
Maintenance FAQ
Maintenance FAQ
Simply carry out the daily/weekly/monthly inspections in the table above; two-shift and high-cycle lines should double the frequency of lubrication and wear-part checks.
First cut power and air, and remove the rivet from the observation port according to the manual; frequent jamming is mostly spec mismatch or part wear, so contact after-sales rather than repeatedly forcing it open.
The manufacturer serves nationwide and can be booked for on-site troubleshooting, maintenance and part replacement, with response time set out in the service agreement.
The manual lists the recommended lubricant model and wear-part specifications, and arbitrary oil substitution is not advised; consumables can be purchased directly from the manufacturer at cost to avoid jams caused by spec mismatch.
Nationwide customers: need maintenance guidance or a parts quotation
Wear parts available long term at cost; on-site maintenance and training can be booked, consultation hotline +86 13268883882.
Recommended reading:Inspection and Repair of CHANRUI Automatic Riveting Machines · Automatic Riveting Machine Operating Tips · Automatic Riveting Machine Maintenance and Parts Supply Guide
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