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Jet JHM-1253 DRO Operating Instructions Manual

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JHM-1253 DRO
Original:
GB
Operating Instructions
JPW Tool Group Hong Kong Limited
98 Granville Road, Tsimshatsui East, Kowloon, Hong Kong, PRC
www.jettools.com
Импортёр в РФ: ООО «ИТА Технолоджи»
105082, Москва, Переведеновский пер., д. 17
www.jettools.ru
Made in PRC / Сделано в KHP
M– 50000862T
Milling Machine
2022-10

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Summary of Contents for Jet JHM-1253 DRO

  • Page 1 Milling Machine JHM-1253 DRO Original: Operating Instructions JPW Tool Group Hong Kong Limited 98 Granville Road, Tsimshatsui East, Kowloon, Hong Kong, PRC www.jettools.com Импортёр в РФ: ООО «ИТА Технолоджи» 105082, Москва, Переведеновский пер., д. 17 www.jettools.ru Made in PRC / Сделано в KHP M–...
  • Page 2 Dear Customer, Many thanks for the confidence you have shown in us with the purchase of your new JET-machine. This manual has been prepared for the owner and operators of a JET JHM-1253 Milling Machine to promote safety during installation, operation and maintenance procedures.
  • Page 3 Keep children and visitors a safe distance from the work The rotating chuck, tool and cutting chips can cause injury. area. Thrown and hot work pieces and cutting chips can lead to Do not operate the electric tool near inflammable liquids or injury.

  • Page 4: Machine Structure

    ★：During lifting heavy objects, use hoisting machinery, crane or as universal milling head, swivel table and dividing head, which can expand the range of machining. multi person cooperative operation； ▲: The work lamp after lighting for a long time will be too hot to (3) The table of JHM-1253 can swivel 45°...
  • Page 5 dovetail guideway, and on the bottom of left side is rack. When turn selecting. There are 18 kinds of speed on the turntable; the mushroom handle is used for controlling. （see Fig.2） the hex head on left side of bed upper position by spanner, the rack will move by means of pinion.

  • Page 6: Unpacking And Installation

    moving on three directions of longitudinal, horizontal and vertical. Table rapid moving speed 2300 mm/min There is feed interlock device on each axis. Longitudinal 、Cross Table rapid moving speed 770 mm/min The handle controlling longitudinal travel of worktable is installed Vertical on top center position of worktable base.
  • Page 7 triple gear and one duplex gear) of Ⅱ/Ⅳ shaft; the speed range is concrete foundation according to foundation plan (see fig.4). Pour foundation in solid soil. It is best to tamping beforehand. The of 30～1500rmp. foundation depth is decided by soil. Fig.6 Spindle speed distribution diagram After placing machine tool on the foundation, and before pouring...
  • Page 8 corresponding leadscrew turns and gets longitudinal, transverse and vertical feed movement. Three directions of the clutch is interlock, cannot be connected at the same time. The longitudinal and transverse feed range are all in 23.5mm/m to 1180mm/m; Due to lowering speed function of gear 56, 57, 58 and 59, vertical feed rate (namely 8-394 mm/m) is only equivalent to 1/3 of the vertical feed rate.
  • Page 9 triple gear 20° 40Cr Outer sleeve：45 Inner sleeve ： triple gear 20° 40Cr gear 20° 40Cr ZQSn6-6-3 triple gear 20° 40Cr Y40Mn screw duplex gear 20° 40Cr triple gear 20° 40Cr gear 20° 20Cr duplex gear 20° 40Cr gear 20° gear 20°...

  • Page 10: Coolant System

    51112 60x85x Single row thrust b all bearing 51206 30x52x Single row thrust b all bearing K20x26 20x26x needle bearing 6205 25x52x Single-row radial ba ll bearing HK252 25x32x X603 needle bearing 51105 25x42x1 X603 Single-row thrust ba ll bearing 10.COOLANT SYSTEM General emulsified coolant mixture can be used for cooling of the cutting tools.

  • Page 11: Operation

    DZ108- breaker 11.2 Feed movement of electrical control 3P/3.5A Lifting table up and down moving and worktable back and forth moving is controlled by operating handle. The handle linkage DZ108-3P/1A breaker mechanism is connected with travel switch. The travel switch is at the left side of lifting table;...
  • Page 12 Hand shake table hand wheel or handle, are relying on tooth clutch drive shaft rotates together when shaking the hand wheel in either direction; we must first push the hand wheel to the clutch engagement. The feed motor, the lateral and lift the feed hand wheel is pushed interlocking mechanism, the clutch is disengaged, and the hand wheel will not rotate simultaneously, which is particularly important in the fast-moving.
  • Page 13 Fig 11 133. Longitudinal adjustment screw axial clearance In order to climb milling, not only eliminate backlash between leadscrew and nut, but also minimize the gap between screw and Fig 13 table in the axial direction. Figure 12 shows the structure of the table left screw bearing axial clearance adjustment, first remove the 13.5 Feed movement and rapid moving clutch adjustment handwheel, tighten the nut 1 Remove the dial 2, the jammed nut...
  • Page 14 14. MAINTENANCE 14.1. Recommended cutting specifications of machine tool: Carbon steel: carbon content of steel 0.45%; tensile strength limit 600 MPa; It is not more than the maximum cutting range: milling cutter diameter is of 100mm; teeth number: 4; milling width :50mm; milling depth: 3 mm;...
  • Page 15 Fig 17 Trouble shooting: Refer to the following procedures for general troubles: Observation Possible Reasons Solution (1) Input power is wrong. (1) Input the correct power No power while machine (2) incorrect connection (2) Connect correctly starts (3) terminal is loose (3) Press terminals (1) gear shift not in place Check the main gear box;...
  • Page 16 Your appliance contains valuable materials which can be recovered or recycled. Please leave it at a specialized institution. This symbol indicates separate collection for electrical and electronic equipment required under the WEEE Directive (Directive 2012/19/EC) and is effective only within the European Union. 16. Available accessories Refer to the JET-Price-list...
  • Page 17 INSPECTING ACCURACY TEST LIST Geometrical Accuracy (mm) Item Tolerance Measurement Linearity of vertical movement of knee a) 0.025/300 a) In cross vertical plane b) 0.025/300 b) In longitudinal vertical plane Squareness of table surface to guideway a) 0.025/300 α of column <90°...
  • Page 18 Part: 0.04 Planeness of table surface 0.02/300 Parallelism of table surface to table a) 0.025/300 movement b) 0.025/300 a) Cross Max: 0.050 b) Longitudinal Runout of spindle end a) 0.01 a) Runout of spindle outer face b) 0.01 b) Kick of spindle axial direction c) 0.02 c) Kink of spindle nose face...
  • Page 19 Runout of spindle bore axis a) 0.01 a) At the vicinity of the spindle nose b) 0.02 b) 300mm to the spindle nose Parallelism of spindle axis to table surface 0.025/300 Parallelism of spindle axis to table cross movement a) 0.025/300 a) In vertical plane b) 0.025/300 b) In horizontal plane...
  • Page 20 0.01/500 Linearity of datum T-slot Max: 0.03 0.02/300 (distance between Squareness of spindle axis to datum T-slot two bend plates is 300mm) Parallelism of datum T-slot to table a) 0.015/300 longitudinal movement Max: 0.04...
  • Page 21 Squareness of cross travel to longitudinal 0.02/300 travel of table Parallelism of ram guide way to spindle axis a) 0.02/300 a) In vertical plane b) 0.02/300 b) In horizontal plane...
  • Page 22 a) 0.03 Coaxiality of cutter holder hole to spindle (hole of cutter holder axis is lower than spindle a) In vertical plane axis) b) In horizontal plane b) 0.03 a) B side of every test piece should be flat b) Height of test piece should be a) 0.02 accordant b) 0.03...
  • Page 23 Exploded View for JHM-1253 MILLING MACHINE –OVERVIEW–01...
  • Page 24 Part List for JHM-1253 MILLING MACHINE –OVERVIEW–01 Index No. Part No. Description Size JHM1253-01-1 Base JHM1253-01-2 Drip tray JHM1253-01-3 Left door JHM1253-01-4 Rear cover JHM1253-01-5 Plug screw M30x1.5 JHM1253-01-6 JHM1253-01-7 Oil mark JHM1253-01-8 JHM1253-01-9 Plug screw M10x1 JHM1253-01-10 Pull rod JHM1253-01-11 JHM1253-01-12 Over beam...
  • Page 25 Exploded View for JHM-1253 MILLING MACHINE–OVERVIEW–02...
  • Page 27 Part List for JHM-1253 MILLING MACHINE– OVERVIEW–02 Index No. Part No. Description Size JHM1253-02-1 Sleeve JHM1253-02-2 Screw M6x8 JHM1253-02-3 Gear JHM1253-02-4 Shaft JHM1253-02-5 Shaft ring JHM1253-02-6 Shaft ring JHM1253-02-7 Gear JHM1253-02-8 Shaft JHM1253-02-9 Gear JHM1253-02-10 Ring JHM1253-02-11 Gear JHM1253-02-12 Gear JHM1253-02-13 Gear JHM1253-02-14...
  • Page 28 Index No. Part No. Description Size Qt1y JHM1253-02-38 Flange JHM1253-02-39 Bearing NN3018K/P5 JHM1253-02-40 Felt lining JHM1253-02-41 End key JHM1253-02-42 Adjusting ring JHM1253-02-43 Adjusting pad JHM1253-02-44 Gear JHM1253-02-45 Bearing 6411 JHM1253-02-46 Shaft ring JHM1253-02-47 Flat key 12x40 JHM1253-02-48 Shaft ring JHM1253-02-49 Gear JHM1253-02-50 Bearing...
  • Page 29 Exploded View for JHM-1253 MILLING MACHINE–OVERVIEW–03...
  • Page 31 Part List for JHM-1253 MILLING MACHINE–OVERVIEW–03 Index No. Part No. Description Size JHM1253-03-1 Sleeve JHM1253-03-2 Gear JHM1253-03-3 6x30 JHM1253-03-4 Shaft JHM1253-03-5 Shaft ring JHM1253-03-6 Gear JHM1253-03-7 Shaft sleeve JHM1253-03-8 Ring JHM1253-03-9 Bearing 32208 JHM1253-03-10 Shaft JHM1253-03-11 Shaft sleeve JHM1253-03-12 Seal ring B40x55x8 JHM1253-03-13 Gear...
  • Page 32 JHM1253-03-39 Ring JHM1253-03-40 Clutch shaft sleeve JHM1253-03-41 Needle roller 3x24 Index No. Part No. Description Size JHM1253-03-42 Shaft sleeve JHM1253-03-43 Gear JHM1253-03-44 Sleeve JHM1253-03-45 Gear JHM1253-03-46 6x35 JHM1253-03-47 Bearing 6206 JHM1253-03-48 Hole ring JHM1253-03-49 Shaft JHM1253-03-50 Bearing 6205 JHM1253-03-51 Leadscrew JHM1253-03-52 Socket JHM1253-03-53...
  • Page 33 JHM1253-03-77 JHM1253-03-78 Flange JHM1253-03-79 5112 JHM1253-03-80 JHM1253-03-81 Small lever JHM1253-03-82 JHM1253-03-83 Index No. Part No. Description Size JHM1253-03-84 Plug screw JHM1253-03-85 Spring YA2.5x12.5x45 JHM1253-03-86 Gear box JHM1253-03-87 JHM1253-03-88 Drum wheel JHM1253-03-89 Shaft JHM1253-03-90 Sleeve JHM1253-03-91 Adjusting plug JHM1253-03-92 Ring spring JHM1253-03-93 JHM1253-03-94 Lever...
  • Page 34 JHM1253-03-116 Small roller JHM1253-03-117 Angle iron JHM1253-03-118 Spring YA1.2x9x28 JHM1253-03-119 Small pin JHM1253-03-120 JHM1253-03-121 JHM1253-03-122 Screw 8x35 JHM1253-03-123 Screw JHM1253-03-124 Wedge iron JHM1253-03-125 Guide plate Index No. Part No. Description Size JHM1253-03-126 Handle ball JHM1253-03-127 Handle JHM1253-03-128 Tension sleeve JHM1253-03-129 Shaft ring JHM1253-03-130 Screw...
  • Page 35 Exploded View for JHM-1253 MILLING MACHINE–OVERVIEW–04...
  • Page 37 Part List for JHM-1253 MILLING MACHINE–OVERVIEW–04 Index No. Part No. Description Size JHM1253-04-1 Large handwheel JHM1253-04-2 Clutch sleeve JHM1253-04-3 Spring YA2.5x25.5x40 JHM1253-04-4 Scale sleeve JHM1253-04-5 Left shaft bracket JHM1253-04-6 Leadscrew JHM1253-04-7 Handle ball JHM1253-04-8 Sleeve nut JHM1253-04-9 Sleeve nut JHM1253-04-10 Clutch gear JHM1253-04-11 Sleeve...
  • Page 38 Index No. Part No. Description Size JHM1253-04-43 Screw M8x20 JHM1253-04-44 Bevel gear JHM1253-04-45 Fixed screw JHM1253-04-46 Adjusting ring JHM1253-04-47 Worktable JHM1253-04-48 Rotary disc JHM1253-04-49 Sleeve JHM1253-04-50 10x50 JHM1253-04-51 Ring JHM1253-04-52 Bracket JHM1253-04-53 Bevel gear JHM1253-04-54 Round nut and washer M45x1.5 JHM1253-04-55 Bracket JHM1253-04-56...
  • Page 39 Index No. Part No. Description Size JHM1253-04-85 Worm JHM1253-04-86 Flange JHM1253-04-87 Oil pump JHM1253-04-88 Wedge iron JHM1253-04-89 Ear pin JHM1253-04-90 JHM1253-04-91 Screw JHM1253-04-92 Bump plate JHM1253-04-93 JHM1253-04-94 Bolt M8x25 JHM1253-04-95 Bump plate JHM1253-04-96 Short shaft JHM1253-04-97 Sleeve JHM1253-04-98 Swing arm JHM1253-04-99 Taper pin 10x40...
  • Page 40 Part List for JHM-1253 MILLING MACHINE–Coolant Pump Assembly G Index No. Part No. Description Size Qty. JM125-F-001 Coolant pump 400V-50HZ-90W JM125-F-002 Connect Elbow JM125-F-001 Hose JM125-F-004 Nozzle JM125-F-005 Valve JM125-F-006 Extend Elbow JM125-F-007 90° Joint JM125-F-008 Connect Elbow Exploded View for JHM-1253 MILLING MACHINE – Electrical diagram...
  • Page 42 Part List for - Electrical diagram JHM-1253 MILLING MACHINE Part code Part name LBK5-250VA 380V/400V/415V- 3040160 voltage transformer 220V50VA/28V100VA/24V100VA Schneider motor thermal magnetic 3040091 GV2-ME32C 13-18A circuit breaker Schneider motor thermal magnetic 3040082 GV2-ME05C 0.63-1A circuit breaker Schneider motor thermal magnetic 3040087 GV2-ME14C 6-10A...
  • Page 43 Packing List --Main machine, Accessories and tools Name Specification Remark φ27 Horizontal milling cutterarbor subassembl 1 set φ32 Horizontal milling cutterarbor subassembl 1 set 7：24 7：24 Taper 1 piece ISO50/MS4 Double head wrench 17×19 1 piece Double head wrench 22×24 1 piece Double head wrench 27×30...

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