1 / 86

Center of Excellence .

Center of Excellence . Production & Manufacturing . Basic Training. Basic Milling & Gear Cutting. This attachment mounted on column of universal Milling machine. Which consists housing spindle head and bevel drive gears. VERTICAL MILLING ATTACHMENT.

Mia_John
Download Presentation

Center of Excellence .

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Center of Excellence . Production & Manufacturing Basic Training. Basic Milling & Gear Cutting.

  2. This attachment mounted on column of universal Milling machine. Which consists housing spindle head and bevel drive gears VERTICAL MILLING ATTACHMENT

  3. It is used to drive small milling cutters at high speed. It may be fitted on vertical or horizontal machine. It consists a housing contains step-up gearing and a small spindle. HIGH SPEED ATTACHMENT

  4. It’s used for cutting at any angle in vertical plane to produce key ways , slots and corners. It’s provide reciprocating drive for single point cutting tool. SLOTTING ATTACHMENT

  5. It’s used to mill spirals with a plain milling machine. It’s useful for cutting helical threads , gears , worms and racks. UNIVERSAL SPIRAL ATTACHMENT

  6. It’s mounted between the face of column and outer support on a plain or universal milling machine. It consists a fixed housing and a spindle. A special rack indexing attachment used to move the work longitudinally with accurate spacing of teeth. RACK MILLING ATTACHMENT

  7. It’s used for profile milling and many other circular operations in horizontal plane such as slotting and dovetailing. It’s consists a base,a worm drive mechanism and a small circular work table. CIRCULAR TABLE ATTACHMENT

  8. PARTS Base Column Vertical head Spindle Table Saddle Knee VERTICAL MILLING MACHINE

  9. Axis of spindle is in horizontal plane and parallel to It’s table. Generally cutters are mounted on long arbor. HORIZONTAL MILLING MACHINE

  10. It’s usually grouped in the column. It’s consists fuses,motor breakers and contactors. ELECTRICAL EQUIPMENT

  11. It’s consists a pump ,piping and noses,a nozzle and shut-off valve and a tank in machine base. CUTTING FLUID EQUIPMENT

  12. Elements of teeth are twisted or helical. Used for connecting shaft at an angle in same or different planes. Smooth acting gearing. HELICAL GEAR

  13. When the shafts are at 90º and two bevel gears are of same size, known as “miter gears”. MITRE GEARING

  14. Teeth element parallel to rotating shafts are known as spur gear. Used to transmit power and motion through parallel shafts. SPUR GEAR

  15. It’s equivalent to two helical gears,one having a right hand and other a left hand helix. It’s used in heavy duty machines like steel roll mills. HERRINGBONE GEAR

  16. When two shafts are in same plane but at another,bevel gears an angle with one are used. It’s a frustum of a cone having all elements of teeth intersecting at a point. BEVEL GEAR

  17. Two flute type, which meet at the cutting end. It’s used for plunge milling like key ways etc. SLOT DRILL CUTTER

  18. The chuck is supplied with a set of spring collets in various sizes. COLLET CHUCK

  19. The cutter (d) is inserted into the collate and then the nut is tightened ,using the special spanner supplied with the chuck. COLLET CHUCK

  20. It is used to reduce the internal taper in the work spindle,so that it fits on required arbor or cutter. COLLET CHUCK

  21. This type of adapter with Morse taper and flat tong is used for holding taper shank and mill with tong. COLLET CHUCK

  22. The cutter is provided with pitch thread at the end of cutter shank. SELF-LOCKING CHUCK.

  23. The side of the cutter which is traveling in same direction as the feed in climb milling. The work can’t be pulled in to cutter because the resistance of opposite teeth which are “up-milling”. SLOT EQUAL TO CUTTER DIAMETER

  24. The direction of feed is against the direction of cutting edge of cutting mill. SLOT EQUAL TO CUTTER DIAMETER

  25. The common methods used to mount end mills in vertical milling machine are shown in these figures. SLOT EQUAL TO CUTTER DIAMETER

  26. When the helix and cutter of opposite hand, the force will press the cutter in to spindle. Left hand helix right hand cut. DIRCTION OF HELIX OF CUTTER

  27. It’s used for milling small faces and slots. END MILL CUTTER

  28. In vertical milling machine with rotary table attachment. This end mill cutter performed profile cutting operation. PROFILE CUTTING

  29. Some end mill have index able inserts which can be replaced when worm out. INDEXABLE END MILL CUTTER

  30. Solid type of cutter in which straight shank are integral. STRAIGHT SHANK END MILL CUTTER

  31. Taper shank type and helical flute type. It’s fitted in MT-2 sleeve. TAPER SHANK END MILL CUTTER

  32. Solid type of cutter made from a single piece of steel . Used for plain milling operation PLAIN MILLING CUTTER

  33. In large milling cutters the teeth are inserted in a body of less expansive material. The teeth are made from H.S.S or tungsten carbide. INSERTED TOOTH CUTTERS

  34. Carbide tips are brazed on a solid cutter body. It’s also known as tipped solid cutters. BRAZED-ON TIP CUTTERS

  35. Down milling Direction of rotation of cutter and work piece feed in same direction. DIRECTION OF ROTATION OF CUTTER

  36. Arbor type cutter. Cutter mounted on arbor and arbor size selected as per cutter bore size. METHOD OF MOUNTING THE CUTTER

  37. These cutters either bolted or attached directly to the spindle or secured on the stub arbor. FACING TYPE CUTTER

  38. Cutter with straight or taper shank with it’s body. Collate chuck or adapters are used for holding this cutter. SHANK TYPE CUTTER

  39. Cutter axis is held vertically and the helix is towards the right side is called a right hand helix cutter. DIRECTION OF HELIX OF CUTTER

  40. Helix is towards the left side ,it is called a left hand helix cutter. DIRECTION OF HELIX OF CUTTER

  41. When a cutter has a helix and a cut of the same hand,this force will pull the cutter away form the spindle. DIRECTION OF HELIX OF CUTTER

  42. Position of spindle is vertical or 90º to the work table. It’s suitable for boring pocket milling profile milling& key way cutting. VERTICAL MILLING MACHINE

  43. an extension of the machine. An arbor is consider as There are two types of arbor normally. STATE THE USES OF ARBORS

  44. The outer end of the assembly is supported by the bushing. The arbor is designated 00 by the taper number diameter and length. USES OF ARBOR

  45. The arbors are hold with the machine. The arbors are of three types A,B,C as shown in picture. STUB ARBOR

  46. Types A is used to mount the shell and mills and similar cutters. The cutter is tightened on the arbor using the screw. TYPES OF ARBORS

  47. It is used to mount large face milling cutters. The cutter is held on arbor by four screw(b), it has a slot(c),which fits over spindle (d). TYPES OF ARBOR

  48. It is a morse taper adaptor arbor used to hold drills, reamers, chucks etc. TYPES OF ARBOR

More Related