Equipment accuracy adjustment and calibration

Accuracy is quality. We test, adjust and calibrate equipment to restore and hold machining and running accuracy.

Equipment accuracy adjustment and calibration — site view — Equipment accuracy adjustment and calibration · site view

Module 2 service scenarios — Module 2 — Maintenance Plans & Preventive Care · Service scenarios

Geometric and running accuracy are measured with dial indicators, laser alignment tools and the like; deviations are judged against factory standards and process requirements, and a calibration plan is drawn up.

After calibration we re-measure and file the record, and fold accuracy checks into the inspection cycle, so drift cannot creep back and hit product quality and delivery.

Equipment accuracy adjustment and calibration on-site photo — Field photo: Equipment accuracy adjustment and calibration

Service highlights

1
Laser alignment plus dial-indicator measurement — deviations quantified
2
Judged against factory standards and process requirements
3
Post-calibration re-measurement filed; checks built into inspections to prevent drift

How accuracy calibration is done

1
Measuring the current accuracy: geometric accuracy (straightness, parallelism, squareness, runout) and motion accuracy (positioning, repeatability, backlash) are measured item by item against the factory standard and the process requirement, and a test report is issued - first establishing where the error is and how big it is.
2
Tracing the deviations: accuracy deviations trace to five sources: wear (guideways, ball screws, bearings), looseness (fasteners, gibs), deformation (thermal and load-induced), backlash (in the drive train), and parameters (drifted compensation values). Once the measurements are in, the main cause can usually be pinned down.
3
Mechanical calibration: gib and clamp clearance adjustment, guideway lubrication improvement, ball screw nut backlash removal, coupling alignment, bearing preload adjustment. Work is done to standard torques and sequence, with re-measurement after adjustment.
4
Parameters and compensation: backlash compensation, pitch error compensation and thermal compensation parameters are verified. Parameter changes are based on measured data, backed up before the change and recorded after - never blind trial and error.
5
Test-cut verification: where necessary, verification is by cutting a standard test piece: measured dimensions, roundness, flatness and surface roughness - letting the finished part speak.
6
Recommendations for holding accuracy: after accuracy is restored we provide the measures to hold it: lubrication management, loading rules, and a periodic re-check interval. Accuracy drifts - managing the drift rate matters more than a one-time perfect adjustment.

Common Questions

How far can accuracy be restored?

The goal is 'meeting your process requirements', not mechanically chasing the factory figure. Where the base components are in good condition, restoring to near factory standard is normal; where wear has limits, we restore to what the process needs and give an expected retention period. The test report states the current condition, the achievable degree of restoration and the basis for it - without exaggeration.

How much downtime does accuracy calibration need?

Testing plus calibration normally takes one to three days (depending on the machine and the number of items), and test-cut verification takes a block of production time. Most calibrations can be fitted into planned shutdown windows or gaps between shifts, and the schedule is written into the plan.

Back to Module 02 — Maintenance Plans & Preventive Care → Related: dedicated machine tool repair → Case report: 0.8 mm servo positioning drift →

Want to know more about this service?

One phone call, and a senior engineer will walk you through how it is done, what it costs, and how long until you see results.

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Partner Sites

Guangzhou Yujihang Computer Technology Co., Ltd. · www.accpc.com.cn

Guangzhou Henghuan Technology Co., Ltd. · www.hhrobotics.cn

Nanchong Henghuan Robotics Co., Ltd. · www.hhrobots.cn

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