F4000N_revD.pdf - 第114页

F4000N Series Operating Manual Section 8: M aintenance and Periodic Insp ection Part # 562187N - 1 Rev . D Sep. 2012 1 13 © 20 12 Fisnar Inc. 1.3 Check Metho ds Check point Check action (See if) Corrective action Tilt or…

F4000N Series Operating Manual

Section 8: Maintenance and Periodic Inspection

Part # 562187N-1

Rev. D Sep. 2012

112

1. Check Cycles and Methods

1.1 General Consideration

It is essential to correctly and periodically inspect and maintain the robot to prevent

unexpected failures or malfunctions, thus ensuring safe operation and lengthening the

machine‟s life.

The outside parts of the machine should be kept clean. Use vacuum cleaner or soft cloth to

clean the machine. Do not use compressed air or chemical products to clean the machine,

as they can damage the internal cables, timing belts and other components of the unit.

Use only the greasing materials recommended by the manufacturer of the machine.

1.2 Check Cycles and Points

The check cycles of the machine are classified in the following categories:

 Daily check

 Weekly check

 Check after every 3 months of operation

 Check after every 3 years of operation

The checkpoints are as follows:

CHECK POINT

CHECK CYCLE

Daily

Weekly

Every

3 months

3 years

Tilt or deviation of machine

Status of cables and hoses

Appearance

Stability on the work bench

Motor running condition

Motions, connections and joints

Unfastened / loose bolts and screws

Internal wires and connectors

Accuracy and precision

Ball screw assembly, LM guide, slide guide

Overhaul

F4000N Series Operating Manual

Section 8: Maintenance and Periodic Inspection

Part # 562187N-1

Rev. D Sep. 2012

113

1.3 Check Methods

Check point

Check action (See if)

Corrective action

Tilt or deviation of machine

 Robot working position is

tilted or inclined.

 Set the machine in a

proper vertical position.

Status of cables and hoses

 Electrical cables and

pneumatic hoses are

excessively twisted, bent, or

squeezed.

 Air leakage between

pneumatic hoses and fittings.

 Remove the any twists or

bends.

 Cut away the damaged

parts of hoses and make

connections.

Appearance

 Damage on the robot‟s head

from clashes during

operation.

 Pay attention to working

area of robot and remove

any obstacle.

Stability on work bench

 The robot is too close to the

edge of the work table.

 Rearrange the position of

the robot on the table.

 Remove sources causing

table vibration.

Motor running condition

 Infiltration of grease.

 Performance degradation due

to overload.

 Replace motor (see

agent).

Motions, connections, and

joints

 The axes are not moving

smoothly.

 Noises, vibrations, and / or

shakes.

 Grease up.

 Reset and adjust gains

(contact agent for setting).

Unfastened / loose bolts and

screws

 Loose or broken bolts and

nuts.

 Tighten loose bolts and

nuts. Take corrective

action to remove the

cause.

Internal wires and connectors

 Stripped or damaged external

cover or shield on cable

and/or connectors.

 Replace the damaged

cables or connectors with

new ones (see agent).

Accuracy and precision

 Z run out over X or Y larger

than 0.2mm.

 Wear on timing belt.

 Contact agent.

 Replace timing belt (see

agent).

Ball screw (worm gear)

assembly, Linear Motion (LM)

guide, slide guide

 Lack of grease on shaft, LM

guide and / or slide guide

surfaces.

 Deflection of the shaft.

 Apply grease on grease-

hole of worm gear, LM

guide, and slide guide

surfaces.

 Replace the shaft (contact

agent).

Overhaul

 Diagnose the whole system

and make decision for the

overhaul.

 Contact agent.

F4000N Series Operating Manual

Section 8: Maintenance and Periodic Inspection

Part # 562187N-1

Rev. D Sep. 2012

114

2. Greasing Procedure

2.1 Grease Type and Greasing Interval

 Grease type: 30 – 100 centistokes. Recommended: THK brand white lithium grease

solid or spray, or equivalent.

 Greasing period: every 6 months.

2.2 Accessing Parts to be Greased

a. Unscrew the bolts shown with arrows in the following pictures and remove

the covers.

b. Apply grease into the grease hole of ball screw (worm gear) and also thinly to

the surfaces of LM guide and slide guide.

c. Put back the covers and screw in the bolts.

X-Axis