Freedom and Social Change

You can start off by asking yourself, “What is Freedom?” There are many different opinions as to what that answer would be and technically freedom is what is stated in the constitutional rights. The…

Smartphone

独家优惠奖金 100% 高达 1 BTC + 180 免费旋转




What is Vice

A tool is a physical item that can be used to achieve a goal and aids in the performance of any operation. The hand tools allow you to project or complete a job easily.

In a craftsman/fitter workshop, to perform a particular job or work, some different types of hand tools are needed such as vices, hammers, spanners, screwdrivers, wrenches, etc. Some more hand tools are used for cutting purpose such as hacksaw, chisel, drill, reamer, die, file, etc. A craftsman use hand tools with his skill and the requirement of the job. Hand tools are the important parts of the workshop. In this chapter, we will discuss some widely used hand tools and keys.

According to the works and shapes, the vices are having the following types as below.

It is firmly fixed to the bench with the help of nuts and bolts. It consists of a cast iron body and cast iron jaws. Two jaw plates are fitted on both jaws.

The holding surfaces of the jaw plates are knurled to increase the gripping. One jaw is fixed to the body and the second jaw is movable with the help of a handle. Both jaws have tapered shapes with reads in initially, to the tightly gripping of the workpiece. The jaws are opened up to the required length. The job is placed between the jaw plates and fully tighten with the help of a handle. The handle is used for rotating the movable jaw.

It is widely used in the workshop to perform the required operations. Due to the requirement of the job work, we can use the many types of bench vices.

Parts of Bench Vice and Material

Sl. No

Parts

Material

1

Fixed jaw

Grey cast iron

2

Movable jaw

Grey cast iron

3

Jaw plates

Tool steel

4

Spindle

Mild steel

5

Handle

Mild steel

6

Box nut

Cast iron, Phosphorous

.

Points to be Noted While Fixing a Bench Vice

1. The height of the vice should be approximately 1 meter from the shop floor to the top of the vice or it should be equal to the worker’s elbow height.

2. The bench vice should be preferably fixed over a leg of the bench for better support and stability with proper bolts, nuts, and washers.

3. It should be level and the vice jaws must be parallel to the workbench and shop floor. If it is not fixed in level, the material will be removed more from one of the sides.

4. Its fixed jaw should be protruding a little beyond the edge of the workbench to hold the lengthy workpiece vertically.

5. The vice should be fixed rigidly. If it is not fixed rigidly, it will vibrate and impair the surface finish and accuracy.

Adjustment of Bench Vice Height

1. The vice height is correct if the worker’s fingers touch his chin with the elbow put on the top of the bench vice jaws.

2. The height of the bench vice can be adjusted by using any one of the following:

(a) A wooden packing under the base of the vice.

(b) A properly designed vice fixture.

© A wooden platform.

There are the following types of bench vices

ba It is made up of carbon steel. This bench vice is normally used for general purposes or can do most of the work.

It has a V-shaped jaw structure and is made up of cast steel that is fixed below the main jaw of the vice. Therefore, it is used to easily grip round-shaped jobs.

It is commonly used in fitting shops for holding a variety of jobs such as sharping, milling, drilling, and grinding. It is made up of grey cast iron. Its fixed jaw is machined at 90 and the movable jaw moves backward and forward direction on the body through a spindle. It is widely used in machine shops.

The machine vices are of the following types.

It is used for both light and heavy work. It has the tightened grip of the jaws with the workpiece. Its movable jaws hold the job in tightly.

This vice can rotate at any angle (0° to 360°) on its base. Its base is divided into two parts. The bottom part is fixed with the table by nuts and bolts and its upper parts are fixed by clamp. So, it is easy to rotate in any Hardened direction.

This is mostly used to hold the job during milling, and drilling. machining, etc. Its size is mostly measured by the jaws.

If a simple machine vice is changed in opposite directions, then its jaw is not horizontal, but it will become vertical direction so that, if we want to clamp on the table, then its base will be changed. This vice is used for milling processes.

It is used for plumbing and locksmith work in the drill machine. So, it is known as drill machine vice. The jaws of the drill machine vice have a V-shape to grip the pipe and cylindrical bars firmly for operations such as cutting, threading, etc.

Add a comment

Related posts:

and i sing to the boundless earth

and i sing to the boundless earth, letting its returning voice carry me to far-off cliffs, where the power of water can be heard in the waves, seen in the caves rising like cathedrals where fish hunt…

Monitoring Amazon SageMaker Endpoint With Datadog

Amazon SageMaker is a powerful tool for Data Scientists and Software Engineers to prepare, build, train, and deploy high-quality machine learning models. SageMaker Endpoint is an AWS fully managed…