Skid Conveyor Selection and Maintenance Manuals

I. Basic question: what is the skid system? Why did you choose it?

The skid conveyor system is an intelligent logistics equipment with skid as the carrier and roller bed/chain as the transmission path, and its core value is to realise the precise transfer of the car body in the process sections of painting and welding. Its irreplaceability stems from three major advantages:

1. ​Flexible wire mixing capability: Identifies models by RFID, switches positioning modes within 5 minutes, and supports multi-vehicle co-production.
2. ​millimetre accuracyThe 3-2-1 positioning rule (2 round pins at the front + 1 diamond pin at the back) ensures that the body positioning error is ≤2mm, which meets the requirements of robot spraying.
3. ​Extreme environmental toleranceThe drying section is resistant to high temperature of 200℃, and the pre-treatment section is made of 304 stainless steel to resist the corrosion of acid mist.

​counter case: A factory did not use corrosion-resistant materials, half a year rust through 30 skids, production losses of more than a million.

Second, the scenario problem: how to do the selection? Maintenance where to find the focus?

​Scenario 1: How to match production beats?​

• ​parametric formulaRoller bed conveying speed = (process time + buffer time) x pitch. For example, for 40JPH production line, it takes 12 seconds to change colour for colour paint and 30 seconds for varnish, so it is necessary to set up single chain roller bed buffer section before and after spraying room to avoid frequent stoppage.
• ​Guide to avoiding the pit: Huizhou production line stopped 6 times per hour and lost 15% of capacity due to failure to reserve buffer.

​Scenario 2: How to select a model for high temperature environment?​
Thermal expansion of the track in the drying section up to 15mm/10 metres. Three configurations are mandatory:

1. Thermally compensated joints (e.g. Gilli programme)
2. Orbital adjustable screw support
3. Drying entrance laser range finder, deformation of more than 0.5mm that is the alarm

​Scenario 3: What are the key points of daily maintenance?​
Target the three main high-risk areas by site:

• ​transmission systemChain tension should be maintained at 1.5% sprocket spacing, and daily inspection should be carried out to prevent jumping of teeth.
• ​positioning mechanism: Monthly torque calibration of proximity switches (25N-m), immediate calibration with 0.3mm offset
• ​sled body: Weekly application of anti-rust oil on contact surfaces and 5-year electrophoretic protection on the interior of the columns (refer to Geely standards).

Third, the solution: selection errors how to do? What will happen if maintenance is missing?

​Failure 1: Positioning drift due to thermal deformation of the skid​
​result: A car company scrapped 200 body rear axle brackets in a single month, rework rate soared 15%
​Root and Branch Programme::

• Short-term: Installation of laser calibrator for real-time monitoring, 0.5mm overshooting automatic shutdown
• Long-term: switch to self-repairing coating (heals scratches with water, extends life by 3 times)

​Failure 2: The moving machine jammed and caused the whole line to stop production.​
​result: A line body summer track thermal expansion top dead shifter, stopping production for 8 hours loss of $480,000
​Three Steps to Emergency Response::

1. Loosen rack mounting bolts to relieve stress
2. Enabling maintenance mode mechanically locks the lift frame
3. Replacement of rails with thermally compensated joints (expansion allowance ≥ 20 mm)

​Failure 3: Chain breakage due to lack of lubrication​
​result: Rattling noise from dry friction of drive chain, motor current overload 30%
​Maintenance upgrade::

• Automatic thin oil lubrication device: automatic oil filling when the conveyor chain is running and stopping when the machine is stopped
• High temperature resistant grease: 150℃ high temperature grease is used for drying section (such as Shanghai Hutou HOTOLUBE).

IV. Practical data to support decision-making

SAIC-GM-Wuling test shows that: positioning accuracy of every 0.1mm, the product defective rate decreased by 1.2%, energy consumption decreased by 5.7%. when the sled in 200 ℃ baking room to maintain ± 0.5mm steady state operation, is the "zero defects in production" is the most hard core endorsement.

​Exclusive insights::
The next round of technology iteration has arrived - BMW factory adopts electromagnetic locking pin, model switching time is compressed from 15 minutes to 30 seconds. In the next three years, the digital twin will enable fault prediction and increase maintenance response speed by 60%. reserving these interfaces when selecting a model can extend the equipment lifecycle by 10 years.

(The data in this manual originated from the actual production line, reproduced with the source. Encountering specific problems? (Feel free to cross swords in the message area!)