ppt1.ppt

J
DESIGN AND
FABRICATION
MAUALLY OPERATED
FOUR WAY HACKSAW
CUTTER MACHINE
PRESENTED BY,
Under the Guidance of
Mr. X.XXXXXX, M.E
Assistant Professor
Department of Mechanical Engineering
Bethlahem Institute of Engineering
Karungal-629157
ABSTRACT
 There are many industrial applications where round bar or
square bars are required to be operated on different
machines to make machine components such as Shafts,
Bolts, Screws etc.
 This needs more and more number of pieces to be cut for
mass production of those components.
 To achieve this goal the Multi-way power hacksaw
machine is developed. This paper proposes the model of
multi-way hacksaw machine which is able to cut four pieces
simultaneously without any jerk and minimum vibrations.
 The model implies conversion of rotary motion into the
reciprocating motion for proper working of hacksaw.
This model overcomes the limitations of conventional
hacksaw machines which can cut single piece at a time.
 It is able to cut metal bars of different materials at same
time and will be helpful in many industries due its
compatibility, reliability and efficiency.
ppt1.ppt
WORKING
 This project is based on rotary motion conversion into
linear motion just like a shaper machine.in shaper machine
rotary motion of gears convert into linear motion of shaping
tool.
 In this project we will rotate a handle in rotary motion by
our hand and four hacksaws which are positioning opposite
to each other hacksaw will move there own forward
direction and start to cut the work piece.
PROPOSED METHODOLOGY
 This project consists of single phase vertical electric motor
rigidly placed at the center of metallic foundation provided.
The shaft of motor rotates at 90- 100 rpm with the power 2HP.
The circular disc is mounted on the shaft of motor with the
help of key and key slot arrangement.
 The eccentric point on the plane of disc is provided such that
the desired cutting stroke is achieved (around 4-5 inches). One
end of each connecting rod is pivoted at this eccentric point by
the use of suitable bearing.
 Another end of each rod is connected to the hacksaw blade
fame with the help of universal joint to get vertical and
horizontal Degree of Freedom of rotation for the proper
cutting operation.
 The hacksaw frame slides on the guide ways provided.
When motor is ON and disc starts rotating, due to the
reciprocating motion of hacksaw frame the metal rod is cut
which is firmly fixed in vise.
 The automatic feeding of coolant is provided to reduce heat
generated due to friction which also avoids the jerk.
CONCLUSION
As per the above discussion we concluded that to overcome
problems in conventional hacksaw machines, due to high
efficiency, easy to operate and affordable price the proposed
model of multi-way power hacksaw machine is helpful and
completes all the expectations needed in the mini industries.
Future scope of proposed research work to increase the
production rate, cuts the metal bars easily. It can withstand the
vibrations, no hazards from jerk, no special training required to
operate it.
FURTHER SUGGESTED WORK
 The maximum size of Round or Square bar can be
increased by increasing the motor power and dimensions
of different parts.
 Automatic feeding mechanism for material can be
introduced by using limit switches or sensors.
 Automatic lifting up mechanism for frame when cutting
operation is finished to introduce next portion of bar for
cutting.
THANK YOU
1 von 11

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ppt1.ppt

  • 1. DESIGN AND FABRICATION MAUALLY OPERATED FOUR WAY HACKSAW CUTTER MACHINE
  • 2. PRESENTED BY, Under the Guidance of Mr. X.XXXXXX, M.E Assistant Professor Department of Mechanical Engineering Bethlahem Institute of Engineering Karungal-629157
  • 3. ABSTRACT  There are many industrial applications where round bar or square bars are required to be operated on different machines to make machine components such as Shafts, Bolts, Screws etc.  This needs more and more number of pieces to be cut for mass production of those components.  To achieve this goal the Multi-way power hacksaw machine is developed. This paper proposes the model of multi-way hacksaw machine which is able to cut four pieces simultaneously without any jerk and minimum vibrations.
  • 4.  The model implies conversion of rotary motion into the reciprocating motion for proper working of hacksaw. This model overcomes the limitations of conventional hacksaw machines which can cut single piece at a time.  It is able to cut metal bars of different materials at same time and will be helpful in many industries due its compatibility, reliability and efficiency.
  • 6. WORKING  This project is based on rotary motion conversion into linear motion just like a shaper machine.in shaper machine rotary motion of gears convert into linear motion of shaping tool.  In this project we will rotate a handle in rotary motion by our hand and four hacksaws which are positioning opposite to each other hacksaw will move there own forward direction and start to cut the work piece.
  • 7. PROPOSED METHODOLOGY  This project consists of single phase vertical electric motor rigidly placed at the center of metallic foundation provided. The shaft of motor rotates at 90- 100 rpm with the power 2HP. The circular disc is mounted on the shaft of motor with the help of key and key slot arrangement.  The eccentric point on the plane of disc is provided such that the desired cutting stroke is achieved (around 4-5 inches). One end of each connecting rod is pivoted at this eccentric point by the use of suitable bearing.
  • 8.  Another end of each rod is connected to the hacksaw blade fame with the help of universal joint to get vertical and horizontal Degree of Freedom of rotation for the proper cutting operation.  The hacksaw frame slides on the guide ways provided. When motor is ON and disc starts rotating, due to the reciprocating motion of hacksaw frame the metal rod is cut which is firmly fixed in vise.  The automatic feeding of coolant is provided to reduce heat generated due to friction which also avoids the jerk.
  • 9. CONCLUSION As per the above discussion we concluded that to overcome problems in conventional hacksaw machines, due to high efficiency, easy to operate and affordable price the proposed model of multi-way power hacksaw machine is helpful and completes all the expectations needed in the mini industries. Future scope of proposed research work to increase the production rate, cuts the metal bars easily. It can withstand the vibrations, no hazards from jerk, no special training required to operate it.
  • 10. FURTHER SUGGESTED WORK  The maximum size of Round or Square bar can be increased by increasing the motor power and dimensions of different parts.  Automatic feeding mechanism for material can be introduced by using limit switches or sensors.  Automatic lifting up mechanism for frame when cutting operation is finished to introduce next portion of bar for cutting.