Horizontal‑Spindle Rotary‑Table Surface Grinder Troubleshooting: Motor or Transmission System for Jammed Rotary Table

Troubleshooting for non‑rotating rotary‑table failure of horizontal‑spindle rotary‑table surface grinders shall follow the principle from simple to complex. First, inspect the operating status of the variable‑frequency speed‑regulating motor: check for abnormal noises or alarm messages, and judge overheating by touching the motor housing. The rotary table of the rotary‑table surface grinder is driven by the variable‑frequency motor through the reduction mechanism. If the motor runs normally while the table stays stationary, the fault most probably lies in the transmission link.

For the transmission‑system inspection of Shandong Linmo horizontal‑spindle rotary‑table grinders, focus on the worm‑gear pair and pulley connections. Measure diameter deviations of multiple test workpieces with a precision micrometer. Periodic fluctuations indicate severe wear of the indexing worm‑gear pair. Disassemble to inspect the contact‑pattern distribution on the tooth surface of the bronze worm gear, and replace transmission components with excessive wear when necessary. The reciprocating movement of the worktable carriage is driven by toothed pulleys and ball lead screws. It is also essential to check whether the toothed belt is broken or loose.

Attention shall also be paid to the electrical control system during troubleshooting. Interpretation of servo‑motor alarm codes is critical for rapid fault elimination. When overload protection is triggered, besides checking mechanical load, observe the distortion degree of current waveforms with an oscilloscope. Always verify the actual transmission ratio of the reducer before resetting the electronic gear ratio; mismatched parameters will cause motor stall and overheating. Establish equipment operation records and apply molybdenum disulfide solid lubricant on a regular basis to effectively prolong the service life of transmission parts.