View Mobile No. Send SMS. Send Email. Save time! Get Best Deal. Follow us on: Facebook Twitter linkedin. All rights reserved. A rake and pinion mechanism is provided to drive the chuck. Column:- Column is the main cylindrical part of drill machine on which the other components are mounted. Belt guard:- Belt guard is provided to cover the belt and pulley drive mechanism to minimize the hazard of accident. Chuck:- Chuck is provided to hold the drill of different sizes up to 6.
Drill size of more than 6. Work Table:- Work pieces are mounted and held in position by the table. This table can be tilted for drilling at an angle. It is very commonly used for drilling holes in such components that cannot be transported to the shop due to their size or weight or where lack of space does not permit their transportation to the bigger type of drilling machine.
In such cases, the operation is performed on the site by means of the portable electric drill. Sensitive or Bench Drill This type of drilling machine is used for very light work.
Its construction is very simple and so is the operation. It consists of as shown in fig. Radial Drilling Machine This machine is very useful because of its wider range of action.
Its principal use is in drilling holes on such work is difficult to be handled frequently. With the use of this machine ], the tool is moved to the desired position instead of moving the work to bring the latter in position for drilling. Gang Drilling Machine It is nothing but a type of multiple spindle drilling machine , in which the spindles are arranged in a row. These spindles may be driven either separately or collectively.
This machine is very useful when the nature of work is such that a number of operations like drilling, reaming, counter boring and tapping, etc. Turret Type Drilling Machine It is a production of drilling machine , which is very useful when a series of different size holes are to be drilled repeatedly or a number of different operations , like drilling, reaming, counter boring, countersinking, spot facing etc.
It is the operation of producing a circular hole in a solid metal by means of a revolving tool called drill. This operation is performed by means of a multi tooth tool called reamer. Total views 19, On Slideshare 0. From embeds 0. Quality We maintain our drills quality by 4 stage inspection. Though our metal drilling drill performance and accuracy are better than other industrial drill machine manufacturer. Our toolroom drill is manufactured as per Indian Standard Test by testing instruments like,.
Straight Edge Meter: A straightedge is a tool with an edge free-form curves or straight, used for transcribing straight lines. Straightedges are used in the automotive service and machining industry to check the flatness of machined mating surfaces of base as well as the drill arm.
True straightness can in some cases be checked by using a laser line level as an optical straightedge: it can illuminate an accurately straight line on a flat surface such as the edge of a plank or shelf. It effects in the production schedule, time schedule, time saving and increase the quality of our products. In every Drill Machine, it should be 85 lbs and our each Drill Machine noise level is under 85 lbs.
Dial Indicator Micrometers: Dial Indicator Micrometers is used for precise measurement of components which are done on the Drill. As per IS Test each drill machine spindle internal taper near the spindle nose should be 0. When an ammeter is placed in series with a circuit, it ideally drops no.
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This plate carries a cast iron base under it and the bottom surface of the base is also machined true to keep the top surface of the plate in a perfect horizontal plane. It usually works in conjunction with a U-clamp.
Round bar is placed longitudinally in the block and the screw in the clamp tightened. Its specific use is in holding the round bars during marking and center drilling their end faces, which are to be held between centers on the lathe. Also it is very suitable for holding round bars in drilling operations when the axis of the drill is to be kept normal to the axis of the bar.
It is principal marking tool in a fitting shop and is made in various forms and sizes. It consists of a cast iron sliding base fitted with a vertical steel rod. The marker is fitted into an adjustable device carrying a knurled nut at one end. By means of the nut the marker can be loosened or tightened to set it at any desired inclination, moved to and fro inside the hole accommodating it or adjust its height along the vertical pillar. Normally it is used in conjunction with either a surface plate or marking table.
Its specific use is in locating centers of round rods held in V-block, describing straight lines on work held firmly in its position by means of a suitable device like angle plate and also in drawing a number of lines parallel to a true surface.
It consists of a cast base, perfectly planed at the top, bottom and all sides. Two guide pins are provided at the rear end of the base which can be pressed down to project below the base. These pins can be used against the edge of the surface plate or any other finished surface for guiding the instrument during scribing.
They are made in different sizes from the steel pieces. Whenever angles other than right angles are required to be tested or set and marked sliding bevel square or bevel gauge is used. It consists of a steel stock of rectangular cross-section carrying a slotted steel blade at its end. This blade can be made to slide, set at any desired angle and secured in that position by means of a screw. Files of different types are the principal hand tools used by a fitter. All the files, irrespective of their shape, size and grade, essentially consist of two main parts, viz.
Files are generally forged out of high carbon steel, followed by cutting of teeth, hardening and tempering etc. Common shapes of the files available are flat, hand, square, pillar, round, half round, triangular, knife edge, etc. These files are manufactured in different varieties and their classification is governed by the following factors: effective length- i.
Length of the files varies according to the need but the most commonly used lengths range from 10 cm to 30 cm and they cover almost all sorts of filing work done by hand. Length between 10 cm and 15 cm are generally used for fine work, between 15 cm and 25 cm for medium sized work and above 25 cm for all general and large sized jobs.
Square file which carried double cut teeth on all the four faces and is normally made tapered for about one-third of its length near the end opposite to the tang. Scraping is a very important hand operation in bench work employed for obtaining a fine surface finish on the work, particularly for removing convex spots from machined surfaces, and the tools used for doing this operation are known as scrapers.
They vary in shape and size, depending upon the specific work for which they are employed.
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