Southbend SB Positioning Tailstock, Using Quill, Graduated Dial, Increments on Quill

Models: SB

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To mount a non-concentric workpiece to the faceplate:

 

O P E R A T I O N

 

For Machines Mfg. Since 5/11

13" Heavy 13® Gearhead Lathe

 

 

 

To mount a non-concentric workpiece to the faceplate:

1.DISCONNECT LATHE FROM POWER!

2.Protect the bedway with a piece of plywood.

3.With help from another person or a holding device to support the workpiece, position it onto the faceplate and clamp it in place with a minimum of three independent clamping devices (see Figure 37 for an example).

Be sure to take into account the rotational and cutting forces that will be applied to the workpiece when clamping it to the faceplate. If necessary, use counter-weights to balance the assembly and use a dial indicator to make sure that the workpiece is properly positioned for your operation.

Non-Cylindrical

Workpiece

Clamp

FGraduated DialIncrements on Quillaceplate

Figure 37. Example photo of workpiece clamped in a

faceplate.

Quill Lock

Tailstock Lock

Lever

Lever

 

Quill

 

Handwheel

Figure 38. Tailstock and quill lock levers in locked

position.

Graduated Dial

 

 

Increments

0.001"

One Full Revolution

......................................0.100"

Increments on Quill

0"-438" in 116" Increments

Inch

Metric

0–110mm in 1mm Increments

Positioning Tailstock

1.Pull the tailstock lock lever backward (away from the spindle) to unlock the tailstock from the bedway.

2.Slide the tailstock to the desired position.

3.Push the tailstock lock lever forward (toward the spindle) to lock the tailstock against the bedway.

Tailstock

The tailstock (see Figure 38) is typically used to support long workpieces by means of a live or dead center (refer to Centers on Page 41). It can also be used to hold a drill or chuck to bore holes in the center of a part. Custom arbors and tapers can also be cut on your lathe by using the offset tailstock adjustment.

Using Quill

1.Move the quill lock lever toward the spindle to unlock the quill.

2.Turn the quill handwheel clockwise to move the quill toward the spindle or counterclockwise to move it away from it.

3.Move the lock lever away from the spindle to secure the quill in place.

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Page 39
Image 39
Southbend SB Positioning Tailstock, Using Quill, To mount a non-concentric workpiece to the faceplate, Graduated Dial