Ranking of Key Components of CNC Machine Tools Based on Complex Network

Table 3

Key functional components and numbers of CNCMT.

Subsystem	Part name	Number
CNC system	PLC module	1
	Operation panel	2
	CRT module	3
	Automatic programming module	4
	CNC management module	5
	CNC interpolation module	6
	Position control mode	7
	Spindle control module	8
	Main memory mode	9
Feed system	Guide	10
	Ball screw	11
	Nut	12
	Ball	13
	Ball screw bearing	14
	Detection feedback device	15
	Workbench	16
	Transmission mechanism	17
Servo system	Feed servo motor	18
	Spindle servo motor	19
	Servo motor	20
	Spindle servo drive	21
	Feed servo drive	22
Electrical system	Magnetic contactor	23
	Relay	24
	Circuit breaker	25
	Fuse	26
	Control button	27
	LED	28
	Travel switch	29
	Proximity switch	30
	Transformers	31
	Switches	32
	Braking resistance	33
	DC power supply	34
Drive system	Headstock	35
	Spindle	36
	Spindle bearing	37
	Automatic tool clamping device	38
	Automatic stop device	39
	Spindle hole cleaning device	40
Auxiliary system	Tool magazine	41
	Manipulator	42
	Lubrication cooling system	43
	Chip removal device	44
	Vise	45
	Shank	46
	Hydraulic device	47
	Pneumatic device	48
Basic part	Machine bed	49
	Machine column	50