Challenge

Week 6:- Clamp Unit & Pin-Clamp Unit Design Challenge

BBaddem Venkatesh15 Jan 2022

Objective

the main objective of this challenge is to design the swevil type clamp units and swevil clamp unit with pin and assemble the all units with main car panel.

Introduction for clamp unit

Toggle clamps hold the car part firmly and prevent the part from distortion while carrying out the spot welding
operation. A single clamping unit consists of the following parts:
1. Finger: Finger is a movable part which is used to hold the Car part from top against the Back-up and they are
usually mounted on the clamp arm.
2. L-Block: L - Shaped blocks (single or in combination) used to mount the finger to clamp arm, besides allowing
adjustment for locator pin in two directions.
3. Shim and spacer: They allow the finger to be moved to the correct XYZ locating and / or allow the customer to
make adjustments to improve the quality of their product.
4. Blade: Part onto which the aforesaid elements are attached to.
5. Blade spacer: It allows the finger to be moved to the correct location along one direction.
6. Riser: L- shaped tall block with regularly patterned holes to attach the above mentioned parts in modular way
Blade space.

1. Study the PLP (Principle Location Points) data along with the nearby spot data.
2. Depending on the angle of cross section. Mylars will be having shimming either in one direction or in 2
directions. General Thumb rule if the section is inclined more than 15deg or clamping surface is 3D profile then 2
direction shimming are provided.

clamp cylinder

here in this project i m using swevil type pneumatic cylinder with the following specifications

name: CKG_1B_100Y

B: clevius width 1.95

bore :63

end point: double ended knuckel joint

Design Process

primrily we consider following components to design first and the asemble them with car panel using snap commond they are

rest mylar
clamp mylay
clamp arm
blade
shim
pin
retainer
block

the above components are designed as seperate parts through pad and pocket commands from CATIA V5 software tool.

REST MYLAR

the rest mylar is acts as lower support for both blade and blade arm.

CLAMP MYLAR

and a clamp mylar is used as upper support for blade and blade arm

CLAMP ARM

clamp arm is designed seperately and then assemble with car panel and it is horizontal support for the clamp unit

BLADE

blade is the lower support for the panel

SHIM

a shim is designed as washer for the holes and bolts that are assembled with car panel assembly

PIN,PIN RETAINER AND BLOCK

these are the additional components for the design and first these components are attached with clamp unit and then to the panel where if any holes are presented.