Week 5:- Rest Unit & Clamp Unit Design Challenge

Objective

Design 3 Different types of Power Clamp Unit with Different Riser, Blade and Clamp Arm for the given Car Panel.

Design 2 Different types of Rest Unit for the given Car Panel.

Introduction

Clamp unit

A clamp unit is a unit designed to clamp or hold the car panel with NC blocks / mylars / rest by using a pnewmatic clamp cylinder.

Types of clamp  unit

1. Power clamp unit
2. Swivel claamp unit

Parts of power clamp unit

1. Pneumatic Cylinder :

The pnematic cylinder converts the pressure energy of compressed air medium into mechanical energy in form of linear or rotary motion.

2. Clamp arm:

Clamp arm  is a arm which is assembled with the cylinder , which gets connected to the clamp mylar with help of screw , nuts or bolt etc. It can rotate upto 180 deg to perform the operation of clamping & fixing. It is one the major part & important part of clamp unit.

3. Finger / mylars :

Mylars are the part which holds the car panel. There are two types of mylars : Clamp mylar & Rest mylar. The mylar which will be mounted with the clamp is the clamp mylar & the mylar which is rested is rest mylar.

4. Shims :

Shims are the reactangular blocks that are placed between two parts to provide proper support to the parts & to be merge properly. Shims are in set of five packs thar are 2mm , 1mm , 1mm , 0.5mm , 0.5mm etc.

5. Riser :

The part which is mounted on the base plate and holds a clamp or pin cylinder on it, is called Riser. Riser can be Standard Part or manufactured part, it varies from project to project. A riser can be a Single part or welded part. Standard risers also have various shapes and sizes.

Design methodologies  for Clamp unit & Rest unit

• We have to check  proper location of clamp unit in the Fixture.
• We cant place the clamp unit on any curved or uneven surfaces , on the emboss surface etc.
• We have to place it on a straight surface & also have to ensure it have not collides with any others parts of fixture assembly.
• Minimum 30mm distance must be maintain between mounting holes

Rest unit Design -1

Rest mylar

Shim

v

Riser (T-stand design)

Assembly

Assembly with Car panel

Rest unit Design -2

Rest mylar

Shim

Riser (L-stand design)

Assembly

Assembly with Car panel

Power clamp unit Design-1  (Single finger Type)

Clamp Mylar (Single finger Type)

Pneumatic cylinder With clamp arm

Shims

Rest mylar (Single finger Type)

Riser (T-stand type)

Clamp Open condition

Assembly

Assembly with Car panel

Power clamp unit Design-2 (Double finger Type)

Clamp Mylar (Double finger Type)

Clamp mylar support block

Pneumatic cylinder With clamp arm

Shims

Rest mylar (Double finger Type)

Rest mylar support block

L block

Riser (T-stand type)

Clamp Open condition

Assembly

Assembly with Car panel

Power clamp unit Design-3

Clamp Mylar  (T-type)

Pneumatic cylinder With clamp arm

Shims

Rest mylar (T-type)

Riser (L-stand type)

v

Clamp Open condition

Assembly

Assembly with Car panel

Total Assembly with  all clamp & rest unit

CONCLUSION 

Thus we designed 3 types of power clamp unit & 2 types of rest unit following the given design methology.