English Author: Site Editor Publish Time: 2026-03-23 Origin: Site
Q1: What checks should be done before using a radial drilling machine every day?
A : Pre-shift inspection is a key link in preventing faults, mainly including the following items:
Cleaning inspection : Remove iron filings and oil stains from the worktable, guide rail surface, spindle taper hole and other parts to prevent affecting accuracy or damaging the taper surface.
Power supply and electrical : Confirm that the power supply is firmly connected, the switches and fuses in the distribution box are in good condition, and the grounding is reliable.
Lubrication system : Check whether the oil levels in each oil tank meet the standards, whether the manual lubrication pump can discharge oil normally, and whether the oil passage is unobstructed.
Operating components : Test whether the actions of each handle and button are flexible, and whether there is any jamming or loosening.
Component repositioning : Lower the rocker arm to the lowest position, bring the spindle box closer to the column, and reduce the force on the cantilever.
Q2: What should I do if the spindle box of the radial drilling machine cannot be clamped tightly?
A : Poor clamping of the spindle box is a common fault. Possible causes and solutions are as follows:
Excessive clearance of the guide rail surface : The fit clearance of the 55° guide rail surface between the spindle box and the rocker arm exceeds 0.04mm, and the adjustment screws need to be adjusted for correction.
Clamping block position offset : in the loosened state, readjust the clamping block position and tighten the screw.
Hydraulic system leakage : Check for oil leakage at the clamping cylinder and brake frame joints, repair the seals or replace the oil pipes.
Rhombus block failure : If the interference fit of the rhombus block is insufficient and it cannot self-lock, a new part should be replaced.
Q3: What could be the reasons for the column not being clamped tightly? How to solve it?
A : If the column is not clamped tightly, it will affect the rigidity of the entire machine. Common causes include:
Improper adjustment of the spring plate screw : the screw is too tight, causing the column to rise, and the rhombic block cannot press the conical surface tightly. It needs to be readjusted to the appropriate position.
The gap between the machine rod and the housing is too large : Inspect and repair the relevant connection structure to ensure the effective transmission of the clamping force.
Insufficient hydraulic pressure : Check the working condition of the hydraulic pump, replenish the hydraulic oil and adjust the system pressure to the specified value.
Q4: If the rocker arm does not rise or fall smoothly or gets stuck, how should it be handled?
A : this problem is mostly caused by poor lubrication of the guide rail or mechanical wear:
Lack of oil or chip accumulation on the guide rail : Wipe the guide rail surface with a cotton cloth to remove impurities and apply special guide rail oil (such as L-TSA46 turbine oil).
Guide rail deformation or scratches : Minor scratches can be repaired by grinding with fine sandpaper; Severe deformation requires professional repair.
Damage to the lifting motor or reduction gear : Check if the motor is powered on and if the reduction gear is in good condition. Replace it if necessary.
Q5: If there is an abnormal noise when the main shaft is rotating, what could be the problem?
A : Abnormal sounds usually indicate mechanical component abnormalities and require special attention:
Bearing wear : The main shaft bearings wear out after long-term use, generating noise. New bearings need to be replaced.
Loose or slipping belt : Check the tension of the drive belt and adjust or replace the worn belt.
Poor gear meshing : The sliding gears in the spindle box are worn or have impurities. They need to be cleaned or replaced.
Excessive axial movement of the main shaft : Adjust the back nut of the main shaft to keep the axial clearance within 0.01mm.
