Process the sleeve part shown in Figure 1, with a blank diameter of 55mm, a length of 50mm, and a material of 45 steel: chamfer 145 not specified, and Ra12.5 for the rest.

Figure 1 Sleeve components

Table 1: Procedure for Processing Outer Circles with Diameter of 34mm and 42mm and Cutting 20.5 Groove

program

explain

%7101

Program Name

N10 G92 X100 Z100

Set the workpiece coordinate system

N20 M03 S500

The spindle rotates forward at a speed of 500r/min

N30 M06 T0101

Replace the 0 # tool (coarse turning tool) with a replacement number of 01

N40 G90 G00 X50 Z2

Quickly locate the outer circle with a diameter of 50mm, 2mm away from the end face

N50 G80 X42.5 Z-40.5 F200

Coarse car with a diameter of 42mm and a radial allowance of 0.5mm

N60 G80 X34.5 Z-34 F200

Coarse car with a diameter of 34mm and a radial allowance of 0.5mm

N70 G01 X31 Z1 F200

Move the blade tip to a diameter of 31mm, 1mm away from the end face

N80 X35 Z-1

Chamfering 145

N90 X42

Move the blade tip to a diameter of 42mm

N100 Z-34

Move the blade tip to 34mm away from the end face

N110 Z-40.5

Precision car with a diameter of 42mm outer circle

N120 X45

Retract the blade to a diameter of 45mm

N130 G00 X100 Z100

Quickly locate the blade tip to a diameter of 100mm, 100mm away from the end face

N135 T0100

Clear the knife deviation

N140 M06 T0202

Replace the groove cutter with a width of 2mm

N150 G00 X45 Z-34

Quick positioning of the cutting edge with a diameter of 45mm and a distance of 34mm from the end face

N160 G01 X33 F50

Cut a slot of 20.5

N170 X48

Move the blade tip to a diameter of 48mm

N180 G00 Z-42.5

Move the blade tip to a distance of 42.5mm from the end face

N190 G01 X0 F50

Cut the workpiece and maintain a length of 40.5mm

N200 G00 X100 Z100

Quickly locate the blade tip to a diameter of 100mm, 100mm away from the end face

N210 T0200

Clear the knife deviation

N215 M05

Spindle stop

N220 M02

Program ends

Table 2: Procedure for Machining Inner Holes

program

explain

%7102

Program Name

N10 G92 X100 Z100

Set the workpiece coordinate system

N20 M03 S500

The spindle rotates forward at a speed of 500r/min

N30 M06 T0101

Replace the 01 tool (end face turning tool) with a replacement number of 01

N40 G90 G00 X44 Z0

Quickly locate at a diameter of 44mm

N50 G01 X20 F50

Car end face

N60 G00 Z50

Quickly locate the blade tip to a distance of 50mm from the end face

N70 X100

Quickly locate the blade tip to a diameter of 100mm

N75 T0100

Clear the knife deviation

N80 M06 T0202

Replace the knife with the 02 number (inner hole knife) and make up for it

N90 G00 X18 Z2

Quick positioning of blade tip

N100 G80 X21.6 Z-41 F200

Coarse car with a diameter of 22mm and a radial allowance of 0.4mm

N110 G01 X26 Z1 F50

N120 X22 Z-1

Chamfering 145

N130 Z-40.5

Fine tuned inner hole with a diameter of 22mm

N140 G01 X18

Retract the blade tip to a diameter of 18mm

N150 Z100

N160 X100

N165 T0100

Clear the knife deviation

N170 M06 T0303

Change the knife and use a 4mm inner hole slotting knife

N180 G00 X18 Z2

N190 Z-16.5

Quick positioning of blade tip

N200 G01 X23.5 F50

Cutting back blade groove

N210 X20

Retract the blade to a diameter of 20mm

N220 G81 X23.5 Z-20.5 F50

Cutting groove

N230 G81 X23.5 Z-24.5 F50

N240 G81 X23.5 Z-28 F50

N250 G01 Z-28

Blade tip movement positioning

N260 X24

Precision machining groove

N270 Z-16

N280 X20

Retract the blade to a diameter of 20mm

N290 G00 Z100

Quickly retract the blade tip to a distance of 100mm from the end face

N300 X100

Quickly retract the blade tip to a diameter of 100mm

N310 T0000

Clear the knife deviation

N315 M05

Spindle stop

N320 M02

Program ends

Table 3: Program for Precision Machining of a 34mm Outer Circle

program

Explanation:% 7103

Program Name

N10 G92 X100 Z100

Set the workpiece coordinate system

N20 M03 S1000

The spindle rotates forward at a speed of 1000r/min

N30 M06 T0101

External precision turning tool

N40 G00 Z2

N50 X36

N60 G01 X30 Z1 F50

N70 X34 Z-1

Chamfering 145

N80 Z-34

Fine tuned outer circle with a diameter of 34mm

N90 G01 X45

N100 G00 X100 Z100

Quickly locate the blade tip to a diameter of 100mm, 100mm away from the end face

N110 T0000

Clear the knife deviation

N115 M05

Spindle stop

N120 M02

Program ends

Clamp the outer circle with a diameter of 50mm and align it. Rough machining of outer circle with a diameter of 34mm, machining of outer circle with a diameter of 42mm, and cutting of groove with a diameter of 20.5. The knife used has an outer circle machining positive deviation knife (T01) and a cutting groove knife (T02) with a width of 2mm. The processing route is: rough machining of the outer circle with a diameter of 42mm (leaving a margin), rough machining of the outer circle with a diameter of 34mm (leaving a margin), precision machining of the outer circle with a diameter of 42mm, and cutting of the groove. The processing program is shown in Table 1. Use soft claws to clamp the outer circle with a diameter of 34mm and process the inner hole. The knife used has a 45 end face knife (T01), an inner hole turning tool (T02), and a slotting knife (T03) with a width of 4mm. The processing technology route is: rough machining of the end face with a diameter of 22mm, precision machining of the inner hole with a diameter of 22mm, and slotting of the inner hole with a diameter of 2416. The processing program is shown in Table 2. The workpiece is fitted with a spindle, clamped with two tips, and precision machined with a diameter of 34mm on the outer circle. The tool used is a precision machined positive offset tool (T01). The processing technology route is: precision machining of the outer circle with a diameter of 34mm. The processing program is shown in Table 3.