Assessments - 1, GPA: 4
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Facilidade de uso
Figure 63. Thread dial gear engaged with leadscrew. Cap Screw Dial Gear -43 Figure 67 Model SB1001 8K™ Lathe OP E R A T ION For Machines Mfg. Since 8/11 When threading, we recommend using the slowest speed possible and avoiding deep cuts, so you can more easily disengage the half nut to prevent an apron crash! Thread Dial Chart Find the TPI (threads per inch) that you want to cut in the left column of the thread dial chart (see Figure 64), then reference the dial number to the right of it. The dial numbers indicate when to engage the half nut for a specific thread pitch. The thread dial chart can also be found on the front of the thread dial body. 11, 13, 19 10, 14, 18 12, 20, 28 16, 24, 32 Any Position Any Numbered Position 2 Only or 4 Only 4 Only in. Figure 64. Thread dial chart. Note: The thread dial is not used for metric threads—you must leave the half nut engaged from the beginning of the cut until the threads are complete for metric threading. The following examples explain how to use the thread dial chart for inch threads. 16, 24, or 32 TPI For each of these thread pitches, use any line on the thread dial (see Figure 65). Figure 65. Any line on the dial for threading 16, 24, or 32 TPI. ............ Any Position 16, 24, 32 TPI 12, 20, or 28 TPI For each of these thread pitches, use any numbered position (2 or 4) on the thread dial (see Figure 66). TPI Figure 66. Any numbered position on the dial for threading 12, 20, or 28 TPI. ............ Any Numbered Position 12, 20, 28 10, 14, or 18 TPI For each of these thread pitches, use only the 2 positions or only the 4 positions (see Figure 67). . Only the 2 positions or only the 4 positions on the dial for threading 10, 14, or 18 TPI. ............2 Only or 4 Only10, 14, 18 TPI 11, 13, or 19 TPI For each of these thread pitches, use only the 4 positions on the thread dial (see Figure 68). TPI Figure 68. Only the 4 positions on the dial for threading 11, 13, or 19 TPI. ............ 4 Only11, 13, 19 -44 For Machines Mfg. Since 8/11 OP E R A T ION Model SB1001 8K™ Lathe Changing Feed Direction The position of the feed direction gears controls the rotation of the longitudinal leadscrew as follows: ... Standard: Leadscrew rotates in the same direction as the spindle. ... Reverse: Leadscrew rotates in the opposite direction as the spindle. ... Neutral: Leadscrew and end pulleys are disengaged from the drive train. This configuration can be used to save wear on the end pulleys and timing belts when tool position is manually controlled. Tool Needed Qty Wrench 13mm .......................................................1 To change the position of the feed direction gears: 1. DISCONNECT LATHE FROM POWER! 2. Open the end cover and loosen the pivot lock bolt. Figure 69. Feed direction gears in the right-hand threading position (belts and pulleys removed for photo clarity). Feed Direction Gears in Normal Position Pivot Bracket Pivot Lock Bolt Spindle Shaft Gear 3. Standard: To make the leadscrew and spindle rotate in the same direction, turn the spindle clockwise by hand as you apply pressure on the pivot bracket toward the front of the lathe until the rear direction gear meshes with the spindle shaft gear (see Figure 69). 4. Reverse: To make the leadscrew and spindle rotate in opposite directions, turn the spindle counterclockwise by hand as you apply pressure on the pivot bracket toward the back of the lathe until the front direction gear meshes with the spindle shaft (see Figure 70). Feed Direction Gears in Reverse Position Figure 70. Feed direction gears in the left-hand threading position. 5. Neutral: To disengage the leadscrew and end pulleys from the drive train: a. Back out the tensioning thumb screw (see Figure 71) all the way, then push the top end pulley toward the back of the lathe to release the tension on the attached timing belt. Figure 71. Feed direction gears in the neutral position. Tensioning Thumb Screw Push Here Direction Feed Gears b. Turn the spindle counterclockwise by hand and apply pressure on the pivot bracket toward the front of the lathe until the front direction gear is resting on the timing belt (see Figure 71). 6. Re-tighten the pivot lock bolt and close the end cover. -45 Model SB1001 8K™ Lathe A C C ESSOR I E S For Machines Mfg. Since 8/11 Accessories Some aftermarket accessories can be installed on this machine that could cause it to function improperly, increasing the risk of serious personal injury. To minimize this risk, only install accessories recommended for this machine by South Bend. SB1365—Way Oil for Lathes Engineered for high pressure exerted on horizontal or vertical ways and slides. Protects against rust and corrosion. Ensures stick-free, smooth motion which maximizes finishes and extends the life of your machine. Will not gum up! (ISO 68 equivalent) Figure 72. SB1365 Way Oil for Lathes. SB1470—Steady Rest for SB1001 SB1471—Follow Rest for SB1001 SB1470 SB1471 SB1281—MT#2 High-Performance Live Center Set ... .................