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CHESTER LAB12VS Operation Manual

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LAB12VS Lathe
Operation Manual
Chester UK Ltd
Clwyd Close
Hawarden Industrial Park Hawarden
Chester CH5 3PZ
Tel: 01244 531631
sales@chestermachinetools.com
www.chestermachinetools.com

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Summary of Contents for CHESTER LAB12VS

  • Page 1 LAB12VS Lathe Operation Manual Chester UK Ltd Clwyd Close Hawarden Industrial Park Hawarden Chester CH5 3PZ Tel: 01244 531631 sales@chestermachinetools.com www.chestermachinetools.com...
  • Page 2 NOTE The information contained in this handbook is intended as a guide to the operation of these machines and does not form part of any contract. The data it contains has been obtained from the machine manufacturer and from other sources. Whilst every effort has been made to ensure the accuracy of these transcriptions it would be impracticable to verify each and every item.
  • Page 3 Keep children and visitors away. All WARNING! visitors should be kept a safe distance Read and understand the entire instruction from the work area. manual before attempting set-up or operation of this machine! Make the workshop child proof.Use padlocks, master switches, and remove starter keys.
  • Page 4 SPECIFICATIONS: LAB12 VS Lathe Capacities: Swing Over Bed 320mm Swing Over Cross Slide 200mm Distance Between Centers 900mm Width of Bed 180mm Headstock: Hole Through Spindle 38mm Taper in Spindle Nose Number of Spindle Speeds 75-435 rpm / 400-2250 rpm Range of Spindle Speeds Feeding and Threading: Number of Metric Threads...
  • Page 5 TABLE OF CONTENTS LIMITED WARRANTY ____________________________________________________ 1 SAFETY WARNINGS _____________________________________________________ 2 SPECIFICATIONS _______________________________________________________ 3 TABLE OF CONTENT ____________________________________________________ 4 CONTENTS OF SHIPPING CONTAINER _____________________________________ 5 UNCRATING AND CLEAN-UP ______________________________________________ 6 FOUNDATION DRAWING _________________________________________________ 6 GENERAL DESCRIPTION _________________________________________________ 7 CONTROLS ____________________________________________________________ 9 OPERATION ____________________________________________________________ 11 LATHE ACCESSORIES ___________________________________________________ 16 ADJUSTMENT __________________________________________________________ 18...
  • Page 6 WARNING! Read and understand the entire contents of thisManual before attempting set-up or operation! Failure to comply may cause serious injure! CONTENTS OF SHIPPING CONTAINER CQ6132GV Lathe Test Flow Chat Toolbox & Tools TOOLBOX CONTENTS (Fig. 01 ) Reducing Sleeve 5/3 Dead Center MT3 Dead Center MT3 External Jaw...
  • Page 7 UNCRATING AND CLEAN-UP Finish removing the wooden crate from around the lathe Check all the accessories of the machine tool according to the packing list. Unbolt the lathe from the shipping crate bottom. Choose a location for the lathe that is dray, has good lighting and has enough room to be able to service the lathe on all four sides.
  • Page 8 GENERAL DESCRIPTION Lathe Bed (Fig. 03) The lathe bed is made of high-grade iron. By combining high cheeks with strong cross ribs, a bed of low vibration and rigidity is produced. It integrates the headstock and drive unit, for attaching the carriage and leadscrew. The two precision-ground V - sideways, re-enforced by heat hardening and grinding, are the accurate guide for the carriage and tailstock.
  • Page 9 Apron (Fig. 07) The apron is mounted on the bed. It houses the half nut with an engaging lever for activating the automatic feed. The half nut gibs can be adjusted from the outside. A rack, mounted on the bed, and a pinion operated by handwheel on the carriage allow for quick travel of the apron.
  • Page 10 CONTROLS 1. Change-over Switch (A, Fig. 11) After the machine is switched on, turn the switch to “F” position for counter-clockwise spindle rotation (forward). Turn the switch to “R” position for clockwise spindle rotation (reverse). “0” position is OFF and the spindle remains idle.
  • Page 11 9. Carriage Lock Turn hex socket cap screw (A, Fig.14) clockwise and tighten to lock. Turn counter-clockwise and loosen to unlock. Caution: carriage lock screw must be unlocked before engaging automatic feeds or damage to lathe may occur. 10. Longitudinal Traverse (B, Fig. 15) Rotate hand wheel clockwise to move the apron assembly toward the tailstock (right).
  • Page 12 OPERATION Replacement of Chuck The head spindle holding fixture is cylindrical. Loose three set screws and nuts (A, Fig.17, only two are shown) on the lathe chuck flange to remove the chuck. Position the new chuck and fix it using the same set screws and nuts. Tool Set-Up Clamp the turning tool into the toolholder.
  • Page 13 Manual Turning Apron travel, cross travel, and top slide handwheel can be operated for longitudinal or cross feeding. (Fig.21) Longitudinal Turning with Auto-Feed 1. Set the selector knob (A, Fig.22) to select the feed direction and feed speed. Fig. 21 2.
  • Page 14 THREADING AND FEEDING TABLE FOR METRIC LATHE...
  • Page 15 Straight Turning (Fig. 25) In the straight turning operation, the tool feeds parallel to the axis of rotation of the workpiece. The feed can be either manual by turning the handwheel on the lathe saddle or the top slide, or by activating the automatic feed. The crossfeed for the depth of cut is achieved using the cross slide.
  • Page 16 Taper Turning by Setting the Top Slide By angling the top slide, tapers may be turned manually with the top slide. (Fig. 29) Rotate the top slide to the required angle. A graduated scale permits accurate adjustment of the top slide. The crossfeed is performed with the cross slide.
  • Page 17 LATHE ACCESSORIES Three Jaw Universal Lathe Chuck Using this universal chuck, round, triangular, square, hexagonal octagonal, and twelve-cornered stock may be clamped. (Fig.31) Note: new lathes have very tight fitting jaws. This is necessary to ensure accurate clamping and long service life.
  • Page 18 Steady Rest The steady rest serves as a support for shafts on the free tailstock end. For many operations the tailstock can not be used as it obstructs the turning tool or drilling tool, and therefore, must be removed from the machine. The steady rest, which function as an end support, ensures chatter-free operation.
  • Page 19 ADJUSTMENT After a period time, wear in some of the moving components may need to be adjust Main Spindle Bearings The main spindle bearings are adjusted at the factory. If end play becomes evident after considerable use, the bearings may be adjusted. Loosen two hex socket cap screws (A, Fig.38) in the slotted nut (B, Fig.38) on the back of the spindle.
  • Page 20 LUBRICATION CAUTION! Lathe must be serviced at all lubrication points and all reservoirs filled to operating level before the lathe is placed into service! Failure to comply may cause serious damage! NOTES: WfAHOMG Lubricate all slideways lightly before every use. Lubricate the change gears and the leadscrew slightly with a lithium-based grease.
  • Page 21 oil port (A, 6. Leadscrw Lubricatethe oil port (A. FIG.46) with 20W machine oil once daily. 7. Tailstock Lubricate two oil port (B. Fig.46) with 20W machine oil once daily.
  • Page 22 ELECTRICAL CONNECTIONS A WARNING! Fig.47 Connection of the lathe and all other electrical work may only be carried out by an authorized electrician! Failure to comply may cause serious injury and damage to the machinery and property! The CQ290V Variable Speed Lathe is rated at 900W, 1PH, 230V only. Confirm power available at the lathe’s location is the same rating as the lathe.
  • Page 23 MAINTENANCE Keep the maintenance of the machine tool during the operation to guarantee the accuracy and service life of the machine tool. 1. In order to retain the machine’s precision and functionality, it is essential to treat it with care, keep it clean and grease and lubricate it regularly.
  • Page 24 TROUBLESHOOTING Problem Possible Reason Elimination Resharpen tool Surface of workpiece too Tool blunt Tool springs Feed too high Clamp tool with less overhang rough Radius at the tool tip too small Reduce feed Increase radius Centers are not aligned (tailstock has Adjust tailstock to the center Align offset) Workpiece becomes coned...
  • Page 25 BENCH LATHE PARTS LIST for LAB12VS Keep Read and Understand the Operation Manual and SafetyInformation Before Operated!
  • Page 26 Headstock and Driving Assembly...
  • Page 27 Headstock and Driving Assembly(I) Parts No. Description Specification spindle box CQ6132V-04G-01 spindle box panel CQ6132V-04G-40 Cap Screw M4x8 Spindle CQ6132V-04G-04 8x56 Thin flat key 8x22 End cover CQ6132V-04G-14 Cap Screw M6x16 Gasket CQ6132V-04G-14.1 Bearing 32012 Gear CQ6132V-04G-08 Gear CQ6132V-04G-07 Ext retaining ring 52mm Bearing 32010...
  • Page 28 Headstock and Driving Assembly (II) Parts No. Description Specification Gear T23 CQ6132V-04G-11 6x32 Gear T36 CQ6132V-04G-10 Gear T24 CQ6132V-04G-09 Set screw M6x10 Shifting fork CQ6132V-04G-24 Rocker arm CQ6132V-04G-25 Set screw M6x10 Set screw M5x12 O-ring 11.2x2.65 Shaft CQ6132V-04G-26 High/low gear plate CQ6132V-04G-27 Flat hd screw M5x12...
  • Page 29 Oil sight glass Jyg-12 M18x1.5 Speed display control panel CQ6132V-04G-41 Potentiometer Bracket plate CQ6132V-04G-29 Washer Φ8 Cap screw M8x20 Velocity probe Probe holder Cap screw M4x16 Protection cover CQ6132V-04G-30 Round cover CQ6126-04-16 Screw M5x10 Electrical box Bearing plate CQ290V-04-21.2 Washer Φ6 Cap screw M6x16...
  • Page 30 Gearbox Assembly...
  • Page 31 Gearbox Assembly (I) Parts No. Description Specification Output shaft 4x12 Bearing sheath Bearing 51103 Bearing SF-1-1615 O-Ring 16x2.4 Bearing SF-1F16170 Gear Collar Gear Shaft 5x12 Bearing 6202 Left Plug Hex Socket Cap Screw M5x12 Snap Ring Φ14 Collar O-Ring 18x2.4 Snap Ring Φ18 Bearing...
  • Page 32 Gearbox Assembly (II) Parts No. Description Specification Bearing SF-1-1615 Gear Snap Ring Φ16 Bearing 1610 Left Plug Fork Bracket Φ3X20 Shaft O-Ring 6.7x1.8 Fork Gear T16 / T32 / T24 Collar Bearing SF-1-1210 Gear Right Plug Dials Block Gearbox Cover Φ5x40 Knob Base Knob...
  • Page 33 Top slide Cross slide , Carriage Assembly...
  • Page 34 Top slide Cross slide , Carriage Assembly ( I ) Parts No. Description Specification Stop CQ6125-07-32 Spring CQ6230-07-48.1 Top slide CQ6230-07-24 CQ6230-07-38 Beadring 51101 Bracket CQ6230-07-28 Graduated dial CQ6230-07-29 Handwheel CQ6230-07-43 Spring CQ6230-07-48.1 Steel ball Set screw CQ6230-07-43C-1 Screw M6x8 Handle sleeve CQ6230-07-50 Shoulder screw...
  • Page 35 Top slide Cross slide , Carriage Assembly ( Ⅱ ) Parts No. Description Specification Back clamp plate CQ290V-07-22 Hex Socket Cap Screw M8x30 Front right clamp plate CQ290V-07-23 Front left clamp plate CQ290V-07-24 Bracket CQ290V-07-26 Hex Socket Cap Screw M8x20 Washer Collar CQ290V-07-25B...
  • Page 36 Top slide Cross slide , Carriage Assembly ( Ⅲ ) Parts No. Description Specification Small shaft CO632-15-08 Spring CO632-15-09 Block CO632-15-07 Hex Socket Cap Screw M5x10 Knife clip CO632-15-06 Bolt M10x1X45 Washer CO632-15-01 M10x1 Screw M10x20 Handle lever CO632-15-05 Handle knob M10x32...
  • Page 37 Apron Assembly...
  • Page 38 Apron Assembly ( I ) Parts No. Description Specification Gear Φ5x24 Gear Washer Set Screw M4x8 Gear Shaft Shaft Snap Ring Φ8 Gear Shaft Gear Gear Φ4x16 Gear Washer Gear Gear Snap Ring Φ15 Shaft Worm 5x14 Gear Washer Worm Bearing 2501 Worm Base...
  • Page 39 Apron Assembly (II) Parts No. Description Specification Hex Socket Cap Screw M6x8 Ball Φ5 Spring 0.7x4x10 Set Screw M6x6 Knob Handle Handle Base Φ5x45 Shaft Base Hex Socket Cap Screw M5x10 Shaft Handle Shaft Forx Φ5x20 Base Set Screw Knob Hex Socket Cap Screw M5x35 Shaft Handle...
  • Page 40 Tailstock Assembly...
  • Page 41 Tailstock Assembly Parts No. Description Specification Tailstock quill Hex Socket Cap Screw M4x10 Lead Screw 3x10 Pivot Block Washer Φ10 Lever M10-95x50 Oil Ball Φ6 Tailstock body Collar Set Screw M6x10 Limit Screw M6x10 Flange Cover Hex Socket Cap Screw M5x12 Graduated Dial Spring...
  • Page 42 Bed Assembly...
  • Page 43 Bed Assembly Parts No. Description Specification Rack Hex Socket Cap Screw M6x16 Φ5x20 Feed Shaft Shaft Bracket Bearing 51102 Washer Φ12 M12x1.25 Hex Socket Cap Screw M6x45 Oil Ball Φ6 Φ3x20 Hex Socket Cap Screw M8x40 Chip Pan Chip Shield Washer Φ6 Hex Socket Cap Screw...
  • Page 44 LAB12 VS Lathe I. Visual Inspection IV. Electrical Inspection □ 1. Correct label 1. Connection tightened □ 2. Painting damage □ 2. Correct electrical elements □ 3. Corrosion damage □ 3. Earth resistance □ 4. Screw tightened □ 4. Insulation resistance □...
  • Page 45 Test Record LAB12 VS Lathe...
  • Page 46 LAB12 VS Lathe TOLERANCE(mm) INSPECTION DIAGRAM PERMISSIBLE ACTUAL ITEM Runout of spindle 0.01 nose b 0.015 a radial plane b face plane 0.03 Runout of center ----, Runout of spindle <? 0.015 taper hole .,-1 ..a spindle nose b 0.03 b 250 distance Parallelism of center l ...
  • Page 47 LAB12 VS Lathe TOLERANCE(mm) INSPECTION DIAGRAM ITEM PERMISSIBLE ACT\JAL Parallelism of tailstock quill to a 0.025/50 carriage movement •F=l J= a in horizontal plane b 0.025/50 b W-----Z, b in vertical plane Parallelism of tailstock quill taper hole to carriage movement a 0.03/250 a i=cai...