OPERATOR S MANUAL PR70950 SERIES

Size: px

Start display at page:

Download "OPERATOR S MANUAL PR70950 SERIES"

Ross Simon
6 years ago
Views:

1 OPERATOR S MANUAL PR70950 SERIES

2 CONTENTS 1. Foreword P 1 2. Safety Rules and Regulations P 1 3. PRM VARIABLE SPEED MILLING MACHINE P 2 1 Specifications P 2 2 Capacity P 2 3 Names of Machine Parts P 3 4 Lubrication P 6 5 Operations P 7 6 Transport, Unpacking and Floor Space P 9 7 Precision Alignment P 13 8 TROUBLE-SHOOTING P 16 9 Maintenance P CAUTION P Remarks P 25 P 2 / 3

3 P 3 / 3

4 MODIFICATION RECORDS DATE PAGE ORIGINAL MODIFIED ED MEMO P 4 / 3

5 1. FORWORD PRM PR70950 MILLING MACHINES are designed and manufactured to meet the demands by most of our customers. All parts and materials have been placed under strict quality control to ensure the machine s quality superiority and permanent service life. This manual shall give a detailed account of the stucture, mechanism, methods of operation, maintenance, etc. of PR70950 millers. For permanent hi-precision and maximum efficiency of the models, the operators, maintenance and repair personnel are requested to study this manual thoroughly and follow the specific instructions in operations and maintenance exactly. 2. Safety Rules and Regulations 1 Wearing of loose clothes by operatiors is not allowed. 2 Operators shell wear the goggles and safety boots. 3 Do not allow the body to get too close to the machine while it is in operation. 4 Caution must be exercised in machine handling in reference to the warnings in this manual. P 1 / 25

6 3. PR70950 Variable Speed MILLING MACHINE 1 Specifications : FIG.1 FIG.2 STANDARD SPECIFICATIONS INCH MM SPECIFICATIONS INCH MM WORK TABLE Spindle speed 50HZ RPM Working area of table 42 X X 230 R.P.M 60HZ RPM Table travel (Hand) Machine weight 2,222LB 1,010KG Saddle travel A 56 1/2 1,435 Kenn travel B 42 1,067 HEAD C Motor 2HP 3PHASE D / Spindle taper R8 OR N.S.T.#30 E Quill travel F 6 3/4 18 3/ Feed rate(per spindle resolution , , G 8 3/4 20 3/ Capacity : The model features the multi-performance operations as follows : 1. Drilling: Front and oblique drillings. 2. Milling: Front, oblique,end, side millings,etc. 3. Molding: Irregular curved and angle processing. 4. Polishing: Surface polishing 5. Boring: Front and oblique borings P 2 / 25

7 3 Name of Machine Parts : 1. Headstock: FIG.3 FIG.3 P 3 / 25

8 2. Machine body : A. Column Turret and Ram : FIG.4 P 4 / 25

9 B. Work Table, Saddle and Knee : FIG.5 P 5 / 25

4 Lubracation : A Machine Table Lubrication : FIG.6 FIG 6. Position: Method: Lubricant: The hand crank lubracation pump is located on the left side of knee.

10 4 Lubracation : A Machine Table Lubrication : FIG.6 FIG 6. Position: Method: Lubricant: The hand crank lubracation pump is located on the left side of knee. It is recommaned to to lubracate 3 to 5 times daily (pulling twice each time), to keep the work table, saddle, knee, sliding surface and leadscrews in proper working condition. KUO KUANG R-68 GULFWAY 52 VACTRA 2 ESSO FBIS K-53 SHELL TONNA 33 P 6 / 25

11 5 Operation : 1. Machine Body Operations : A Ram Movement and Swiveling(See Fig 7) : a. Ram Movement : 1. Loosen the two Ram lock levers (A). 2. Swivel the Ram pinion handle (B), and the Ram can be moved. 3. When it moves to the desired position, then lock up (A). Ram Swiveling : 1. Loosen the four locking bolts (C) 2. Turn the cross arm until the desired angle is obtained, then lock up (C). FIG.7 FIG.7 P 7 / 25

B. Dial ring Zero Positioning of Table Feed(as shown in Fig 8) 1.

In order to maintain the machine body s rigidity, all non-feed sliding surfaces must

12 B. Dial ring Zero Positioning of Table Feed(as shown in Fig 8) 1. Loosen the nut (D) of dial ring. 2. Turn the dial right (E) to zero position. 3. Lock the nut (D) of dial ring. C. Setting of Sliding surfaces of Work Table, Saddle and Knee : 1. In order to maintain the machine body s rigidity, all non-feed sliding surfaces must be secured to prevent slipping. 2. The sliding surface setting levers (as shown in FIG. 9) are clockwise for setting and counterlockwise for release. FIG.8 FIG.9 FIG.9 P 8 / 25

13 6 Transport, Unpacking and Floor Space : 1. Methods of Transport : A. Prior to unpacking: forklift (FIG.10) or reinforced cable (FIG.12) B. After packing: hoisting with a reinforced cable (FIG.11) or the eye bolt (FIG.13). Remarks: (1) Make sure the working area is clear of personnel when the machine is being hoist (2) Hoisting by the eye bolt is not recomanded, it should only be used when neccesary. (3) To hoist the unpacked case by reinforced cable, please follow the insturuction on the side of the wooden case. (4) In order for the machine to balance, keep the work table and saddle in their proper positions. (5) Do not hoist the machine too high, the best poisition is 10cm from the ground. (6) Do not allow the machine to wobble while hoisting. (7) Only an authorized forklift or crane operator should to transport the machine. P 9 / 25

14 P 10 / 25

15 2. Cautions for Unpacking : A. To transport the machine, it is necessary to support the machine with crated case or pallet to avoid moisture. B. After unpacking, check if all tools and accessories are included. C. Restore the headstock to its normal position after unpacking. D. After unpacking, do not move the sliding surfaces and work table, as long as the rustproof oil on them are not cleaned off and followed with the lubrication. E. Before the cleaning starts, make sure the sliding protective pieces are dismantled, and all sliding surface setting levers are loosened. When the rustproof oil is removed, proper amount of lubricant should be injected onto various sliding surfaces. Finally, move the sliding surfaces for final cleansing and lubrication. F. Do not remove the oil brushes while cleaning. G. Do not use gasoiline or any other inflammable oil cleaner. P 11 / 25

16 3. Floor Space : (20 3/8 ) 517mm 4. Machine Height : 2070(81 1/2 ) 5. Machine Height: 2070 (81 1/2 ) P 12 / 25

17 7 Precision Alignment: In order to maintain precision and a long-term operation, regular precision alignment is highly recomanded. The Precision test report demostates the precision requirements. Note : To align the spindle vertically to the table surface, it is necessary to loosen the three machine head bolts, and the four machine head nuts. To aviod the components from suddenly tilting, do not lossen the bolts and nuts all the way, lock up (P) and (R) as soon as the alignment is performed. P 13 / 25

PRECISION TEST REPORT NO. TEST ITEM TEST ILLUSTRATION Allowable Error(mm) MEASURED (mm) 1 STRAIGHTINESS OF TABLE TOP 0.06/M LONGITUDINAL DIRECTION 0.06/M CROSS DIRECTION 2 SPINDLE NOSE RUN OUT 0.

18 PRECISION TEST REPORT NO. TEST ITEM TEST ILLUSTRATION Allowable Error(mm) MEASURED (mm) 1 STRAIGHTINESS OF TABLE TOP 0.06/M LONGITUDINAL DIRECTION 0.06/M CROSS DIRECTION 2 SPINDLE NOSE RUN OUT CAM ACTION OF SPINDLE FLANGE SPINDLE HOLD RUN OUT AT END OF SPINDLE 0.01 AT END OF 300mm TEST BAR PARALLELISM OF LONGITUDINAL MOVEMENT OF TABLE WITH IT S TOP PARALLELISM OF LONGITUDINAL MOVEMENT OF TABLE WITH IT s TOP PARALLELISM OF LONGITUDINAL MOVEMENT OF TABLE WITH MIDDLE T- SLOT SQUARENESS OF CROSS MOVEMENT OF TABLE WITH MIDDLE T-SLOT 0.02 P 14 / 25

19 NO. TEST ITEM TEST ILLUSTRATION Allowable Error(mm) MEASURED (mm) SQUARENESS OF VERTICAL MOVEMENT OF SPINDLE HEAD WITH TABLE TOP LONGITUDINAL DIRECTION 9 CROSS DIRECTION HIGH AT FRONT OF TABLE SQUARENESS OF TABLE TOP 10 WITH VERTICAL MOVEMENT OF KNEE LONGITUDINAL DIRECTION 0.02 CROSS DIRECTION HIGH AT FRONT OF TABLE 0.02 SQUARENESS OF TABLE TOP WITH SPINDLE LONGITUDINAL 0.02 DIRECTION 11 CROSS DIRECTION HIGH AT FRONT OF TABLE 0.02 P 15 / 25

8 Trouble Shootings : 1. Adjustment of Backlash of Leadscrew: After a certain period of time, a clearance will appear between the leadscrew and its nut due to friction.

20 8 Trouble Shootings : 1. Adjustment of Backlash of Leadscrew: After a certain period of time, a clearance will appear between the leadscrew and its nut due to friction. In order to restore precision, the nut must be adjusted to a provide a proper tension between itself and the leadscrew. A. Adjustment of cross leadscrew (Vide FIG.15) : a. Turn the crank (F) counterclock wise, and move the saddle seat to the foremost position of knee. b. Remove the two setting pins (H) in the front bearing bracket (G) and take off the four socket HD cap screws (I). c. Support the cross feed bearing bracket (G) and turn the crank (F) clockwise so that the bracket will be separated from the knee (shown in FIG.16, the distance between the bracket and the knee must be longer than the length of the adjusting tool). d. Insert the larger end of clearance adjusting tool into the knee and turn the locking nut (J) one round counter-clockwise. Reverse the adjusting tool and insert the smaller end into the knee. Turn the nut (K) clockwise and lock it up. e. Turn the crank (F) clockwise and counter-clockwise and measure a clearance of approximately 3-4 graduations (0.06mm~0.08mm or 0.03 ~ ) on the dial. Lock up (J) accordingly. f. Turn the leadscrew counter-clockwise into the knee until the front bearing bracket seat gets in contact with the knee.insert the two setting pins (H) and lock up tight the four cap screw (I) of the bearing bracket. FIG.16 FIG.16 P 16 / 25

B. Adjustment of Backlash of Longitudinal Leadscrew : a. Move the work table to the center of saddle. b. Insert the larger end of the backlash adjustment tool into the left side of the saddle.

21 B. Adjustment of Backlash of Longitudinal Leadscrew : a. Move the work table to the center of saddle. b. Insert the larger end of the backlash adjustment tool into the left side of the saddle. Turn the locking nut (J) counter-clockwise one round. Reverse the end of adjustment tool and insert the smaller end into the same position and turn the leadscrew adjusting nut (K) clockwise. c. Turn the crank (F) slightly clockwise and counterclockwise and measure a clearance of approximately 3 to 4 graduations on the dial ( mm or ), before locking up the nut tightly. FIG.17 FIG 17 P 17 / 25

22 2. Gibs Adjustment : The gibs will worn out after a certain amount of time, and create a clearence between the sliding surface and the gibs. In order to keep the precision of the sliding surfaces, the gibs must be adjusted. A. Adjustment of Work Table gibs (Vide FIG.18) : The gibs are attached between the saddle seat and the work table dovetail. a. Loosen the lock lever (L). b. Clean the slideway and add lubricant. c. Use a screwdriver to adjust the gibs screws (M) that are located on both sides of the saddle seat. d. When the crank is too loose when turning (F) (Vide FIG.16,P.13); slightly loosen the adjusting gib screw on the right side of the saddle, then lock up the adjusting gib screw on the left side. If the crank is still loose, then loosen the left adjusting gib screw and lock the right side.repeat these steps until satisfactory. e. Replace the worn-out gib when necessary. FIG.18 FIG.18 P 18 / 25

23 B Adjustment of Saddle Gibs (Vide FIG.19): Saddle gib is located between the left side of saddle and the knee dovetail. The adjustment can be performed as follows: a. Loosen the saddle lock bolt (A). b. Move the saddle to the front part of the knee. c. Take off the wiper holder (B) of saddle. d. Clean the slideway and apply lubricant. e. Use a screw driver to adjust the gib screw (D) of the saddle. f. Employ the same methods to adjust the work table gib. g. Lock up the wiper holder (B) on the saddle. FIG.19 P 19 / 25

24 C Adjustment of Knee Gibs (Vide FIG.20) : The Knee gibs is located between the left side of the knee and the column dovetail. The adjustment can be performed as follow : a. Loosen the knee clamp lever (G) (Vide FIG.5, P.5). b. Take off the wiper holder (Q). c. Clean the slideway and apply lubricant. d. Raise the knee to its upmost position. e. Use a screw driver to adjust the gib screw (R) of the knee. f. Employ the same methods to adjust the work table gibs. g. Restore and lock up the wiper holder (Q). FIG 20 FIG 20 P 20 / 25

b. Clean the slideway and apply lubricant. c. Turn the nut on the gib s bolts (I). d.

25 D Adjustment of Ram Gibs : The ram gib is loacted between the ram and the turret dovetail. When the ram sliding is too tight or loose, the following adjustment can be performed. a. Loosen ram lock lever (C). b. Clean the slideway and apply lubricant. c. Turn the nut on the gib s bolts (I). d. Use a screw driver to loosen the gib s bolt (I) until the ram moves smoothly. e. Lock up the nut tightly. FIG 21 FIG 21 P 21 / 25

26 9 Maintenance : The machine s life depends on proper maintance and correct operation, In order to keep the machine efficient, please follow the mainteance schedule below. Daily Maintenance : (1) Check if the oil level of hand crank pump is on the designated line. (2) The designated positions must be lubricated prior to operation. (3) Keep the machine idling for three to five minutes prior to operation. (4) Clean the work table and remove unfinished workpiece after daily operation (5) After daily operation, loosen all setting levers, dismantled the cutter,and move all sliding parts to the proper position. (6) After daily operation, the headstock must be restored to its normal position if it is tilted. Monthly Maintenance: (1) Check if all clamping rails of the various sliding surfaces are normal. (2) Check if the backlash between leadscrew and its nut are normal. (3) Check if the quill lock and sliding surfaces are normal. Quarterly Maintenance : (1) Check if the brake functions and the belt are normal. (2) Inspect the level of work table and erection status of headstock. (3) Perform the precision test report. (4) Replace worned out parts P 22 / 25

27 SPEED DIAGRAM (Motor 50 Hz) P 23 / 25

28 10 CAUTIONS : (1) Machine operations : a. The machine must stable before locking up the anchor bolts. b. The machine must be installed on a solid base. c. Check the motor voltage and the p d. ower source voltage are correct. e. The cutters must be away from the workpiecse, when the motor is started or stopped. f. Switched off the power source before gear change. (2) Machine Operators : a The machine is to be operated by an authorized operator only. b Immediate stop and repair when experiencing difficulty during operation. c In installation, the machine mustl be securely connected to ground. d In stop motion, the feed lever must be placed in the neutral position. e The machine must be stopped before inspecting the workpieces. f In clamping, workpieces must be firmly vised. g The spindle must be kept clean and lubricated at all times. h Do not place any tools on the work table i Prior to cutting, wait until the spindle is running steadily after the motor is started. j Use a brush to clean off iron fragments. P 24 / 25

29 4. Remarks (1) All PRM products have gone through strict QC, with precision degress in conformity with CNS. To ensure the machines precision, service life and proper safety operation, please thoroughly study this manual. (2) We welcome any suggestions for machine improvements, inquiries and plant visits. (3) In case of maintenance, servicing and parts changes, please contact our sale agents or business department directly. (4) The manufacturer reserves the right to modify the design, operations, structure etc all of the machines without any advance notice. P 25 / 25

SERIES I MILLING MACHINES

INSTALLATION, OPERATION, MAINTENANCE, AND PARTS LIST SERIES I MILLING MACHINES TP5260 Revised: August 29, 2005 Manual No. M-450 Litho in U.S.A. Part No. M -0009500-0450 June, 2003 MAINTENANCE PROCEDURES