Thursday, 28 June 2018

PRESS TOOL COMPONENTS

The major components in press tools are,

1. Bed
2. Bolster plate
3. Die
4. Die set
5. Pitman
6. Ram
7. Knockout
8. Cushion
9. Die block
10. Upper shoe
11. Lower shoe
12. Punch
13. Punch plate
14. Pressure plate
15. Stripper

1. Bed

The bed is lower part of press frame and it serves as table to which a bolster plate is mounted

2. Bolster plate

It is thick plate,secured to the press bed. Which is used for locating and supporting the die assembly. It is used for 100 mm thickness. Bolster plate cannot move due to fixed on the position of the bed.

3. Die

It is the Principle component of a press tool work, which is always used in joint of punch. It is female component.It is  made of Hardened steel.The consists of mating members for producing press in work in pair position.
Types of dies
      1. Piercing Type
      2. Compound Type
      3. Progressive Type
      4. Special Type
      5. Drawing type
      6. Deep drawing Type
      7. Bending Type
      8. Blanking Type
      9. Forming Type

4. Die set

It is located on the upper position of die. Which incorporates a lever and upper shoe.It consists of guide posts bushings.

5. Pitman

Pitman is same connecting rod which transmits motion from drive main shaft to the slide position
of the press

6 . Ram

It is also called slide rod. It is movable. Its position change when the strike is fixed.

7. Knockout

Knockout is a mechanism which operating press on the upstroke and its ejects the workpiece from
the press tool.

8. Cushion

It's position in the lower part of bolster plate. Its moving direction is upward.

9. Die block

The die block is press accessory and contains die cavity.
Die block is block or plate of press.

10. Upper Shoe

It is part of die set and its position upper position on the die set. It contains post guide bushings.

11. Lower Shoe

It is part of bolster plate. Its position lower position in the bolster plate. It contains die block posts
and guide posts

12. Punch

It is male component in press in the conjunction in the die assembly part. Its directly and indirectly
moving direction. It moved by ram.

13. Punch plate

It is press accessory fits closely over the body of the punch.  Punch plate holds proper relative position.

14. Pressure plate

It is also called backup plate. It is placed in the pressure distribute uniformly in press.
Pressure plate avoiding crushing effect.

15. Stripper

It is type of plate and it is used to metal strip from a die and guides the sheet.