Southbend sb1015f specifications Compound Slide, Four-Way Tool Post, To load the tool post

EVS Toolroom Lathes O P E R A T I O N For Machines Mfg. Since 7/09

Compound Slide

The compound slide handwheel has an indirect- read graduated scale. This means that the distance shown on the scale represents the actual distance the tool moves, which will remove twice as much material from the diameter of the workpiece. The base of the compound slide has another graduated scale used for setting the tool to a specific angle.

To set the compound slide at a certain angle:

1.Loosen the two hex nuts at the base of the compound slide (1 of 2 shown in Figure 71).

Four-Way Tool Post

The four-way tool post is mounted on top of the compound slide and allows a maximum of four tools to be loaded simultaneously.

The four-way tool post allows for quick indexing to different tools, which is accomplished by loosening the top handle, rotating the tool post to the desired position, then re-tightening the handle to lock the tool into position.

Tool Needed	Qty
Tool Post T-Wrench	............................................... 1

Compound

Slide

Hex Nut

Figure 71. Compound slide set at an angle.

2.Rotate the compound to the desired angle, as indicated by the scale at the base, then retighten the two hex nuts.

—If setting up to cut external right-hand inch or metric threads, or left-hand internal threads for the first time, set the compound so its travel is perfectly parallel with the cross slide. Using a protractor, rotate the compound 29.5° counterclockwise and mark the new location on the compound slide. This mark will be the quick reference point for setting the offset angle. To mark for internal right-hand threads, or left-hand external threads, repeat this process, but rotate the compound 29.5° clockwise and mark the cross slide accordingly.

To load the tool post:

1.Choose the desired cutting tool.

2.Loosen the tool post bolts so that the cutting tool can fit underneath them.

Note: If necessary, place one steel shim underneath the cutting tool so the cutting tip is properly aligned with the workpiece. The shim should be as long and as wide as the cutting tool to properly support it.

Over-extending a cutting tool from the tool post will increase the risk of it breaking during operation, which may cause metal pieces to be thrown at the operator or bystanders with great force. Only extend a cutting tool 2.5 times the width of its cross-section or less (i.e., 2.5 x 0.5" = 1.25").

3.Firmly secure the cutting tool with at least two tool post bolts (Figure 72).

Tool Post Bolts

Top

Handle

Cutting Tool

Figure 72. Example of 4-way tool post.

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