Analysis and countermeasures of common faults in radial drilling machines

Drilling machine is a widely used machine tool, mainly used for drilling, expanding, reaming, boring, tapping, and scraping various forms of processing. There are many types of drilling machines, including desktop drilling machines, vertical drilling machines, radial drilling machines, multi spindle drilling machines, horizontal drilling machines, and CNC drilling machines. Among various drilling machines, the radial drilling machine is the most common drilling equipment, which is easy to operate, flexible, and has a wide range. It is particularly suitable for hole processing of large porous workpieces in single or batch production. The main operating components of the radial drilling machine, such as handles and buttons, are integrated into the spindle box. During use, radial drilling machines often encounter various malfunctions that affect production.

Fault 1: The main motor does not rotate when the start button is pressed

Fault analysis:

The main power switch is not turned on; Poor contact of the start button; The contactor does not close, and the connection points in the main motor junction box and electrical panel are not in good contact or the connectors are detached.

Solution:

Turn on the main power switch; Check the start button connector; Check the contacts of the contactors in the electrical cabinet and check the wiring connections of the motor.

Fault 2: Oil leakage on the main shaft and outer surface

Fault analysis:

The oil in the mailbox is overfilled and leaks from above the bearing seat.

Solution:

When injecting oil, do not exceed the mark in the center of the oil gauge.

Fault 3: Spindle box not tightly clamped

Fault analysis:

The clearance between the 55 ° guide rail surface of the spindle box and the rocker arm is large; The position of the spindle box clamping block is incorrect; Oil leakage at the joint between the clamping oil cylinder and the brake frame or related parts; The interference amount of the diamond block is not enough to make it stand up and self lock.