Radial Drilling Machine Parts And Functions PdfBy Stephanie R. In and pdf 08.04.2021 at 12:13 8 min read
File Name: radial drilling machine parts and functions .zip
- Drilling Machine: Definition, Parts, Types, and Operations (With PDF)
- explain with a neat sketch radial drilling machine
- Drilling machine – Parts, Types, Operations and More with PDF
Drilling Machine: Definition, Parts, Types, and Operations (With PDF)
Also at the end of the article, I will give you the pdf download link. We also perform drilling operation in lathe machine too, but drill machine is made for this specific drill operations, so where we need bulk of drilling operation we go for drilling machine. Drilling is a material-removing or cutting process in which the tool uses a drill bit to cut a hole of circular cross-section in solid materials.
The base of a drilling machine is generally made of cast iron or steel, and it is very rigid. At the top of the base, there are some slots provided to support the big jobs. And on one side of the base, a radial column or a pillar is situated. The base is generally bolted with the ground or in some case the base is supported by two or four legs. The column or pillar is situated on one side of the base.
The column is also made of cast iron or steel and is also very rigid so that it can carry the load of the arm as well as a drill head.
A sliding table is mounted on the column so that the table can have up and down motion according to the need. The upper arm is also made of the same material as the base.
To make the structure rigid. The worktable is generally made of cast iron and it is mounted on the column. T-slots are provided at the top surface of the table may be in some table there is a vice which also helps to hold the job.
The table can move up and down as also right or left according to the job and tool arrangement. The up and down motion of the table can be given by hand as well as by some electrical mechanism. A drill chuck is mounted over it. A drill head can slide up and down as per the requirement of the job. A V-types belt is provided to transfer the power from the motor to the pulley and from pulley, the mechanical power is transferred to the drill head.
For the up and down motion of the drill head, we use hand and as well as automatic feed by an electrical motor. Here also a rack and pinion are used to convert the rotational movement from electrical motor or by hand to the straight-line movement. It is made of high carbon chromium steel or stainless steel or steel alloys. And it is made of special alloy steel. In a drilling machine, we use a single-phase ac motor.
Which can run at an rpm of , or maybe more for high duty drilling machine. Pully or gears is used to transmit power and also for getting different speed. In a drilling machine, we use bevel gear to transmit power at an angle of 90 degrees. The power transmission in the drilling machine used to transmit power for its working.
The process of transmission takes place with the help of the v-bolt and the pair of pulley stacks opposite to each other. In the market there are various types of Drilling machine available, here I mention some of the popular types of drilling machine s. The sensitive drilling machine has only a hand-feed mechanism for feeding the tool into the workpiece.
This enables the operator to feel how the drill is cutting and accordingly he can control the down feed pressure. Vertical or Pillar Drilling Machine is free standing and is of a far heavier construction able to take larger drills. The larger drills normally have a taper shank located within taper bore in the spindle end. The radial drill machine is free-standing and the workpiece is clamped in the position on the base.
It is used for heavy large and heavy work. The arm is power-driven for the height location. The drill head is positioned using motorized drives and it transverse the swinging arm. In the Multi-spindle drilling machine, there are many spindles mounted on one head to allow many holes to be drilled simultaneously.
N umerical control drilling machine can automatically change tooling with a turret or automatic tool changer. It is designed with cones like internal structure, narrow at the top of the web with a gradually increasing thickness to the shank. It is a multi-point cutting tool. I also wrote an article on the single-point cutting tool you can check that too. The portion of the drill extending from the sank or next to the outer corners of the cutting lips. The angle included between the chisel angle and the cutting lips as viewed from the end of the drill.
Helical or Street grooves cut or formed in the body of the drill to provide cutting lips, to permit removal of chips and to allow cutting Fluids to reach the cutting lips. The length from the outer corners of the cutting lips to the extreme back and of the flutes; it includes the sweep of the tool used to generate the flutes and, therefore does not indicate the usable length of the flutes.
The distance between the leading edge and the hill of the land measured at the right angle to the leading edge. The axial relief angle at the outer corner of the lip; it is measured by projection onto a plane tangent to the Periphery at the outer corner of the lip.
The length from the extreme end of the shank to the outer corners of the cutting lips; it does not include the conical shank end often used on a straight shank drill, nor does it include the conical cutting point used on both straight and taper shank drills. The cutting end of the drill made up of the end of the lands and the web; inform it resembles a cone, but departs from a true cone to furnish clearance behind the cutting lips. The angle included between the cutting lips projected upon a plane parallel to the drill axis and parallel to the two cutting lips.
The central portion of the body that joins the land; the extreme end of the web forms the chisel edge is on a two-flute drill. These are the following operations that can be performed in the Drilling machine. Although you can use a lathe for drilling operation too, drill machine is an appropriate machine to do holes in a workpiece. A drill bit is a multipoint rotary cutting tool which helps to remove material from a workpiece. When sand castings are made, cores are used to displace the metal where holes are desired.
When cast the molten metal flows around the core. The boring tool is generally a single-point cutting tool. A finished hole has the specified diameter size, is perfectly round, the diameter is the same size from end to end, and it has a smoothly finished surface. A drill hole is seldom accurate enough in size or sufficiently smooth to be called a precision hole. When greater accuracy is required the whole must be drilled undersize by a certain amount and finished by the reaming.
In this type of operation, we need a reamer to perform the operation. A reamer is a rotary cutting tool that removes the material from the existing hole which has several parallel and helical cutting edge throughout its cylindrical body.
It is the operation of boring a second hole, a larger diameter than the first but concentric with it. The small diameter on the end of the tool known as the pilot keeps the counterbore concentric with the original hole. Flathead screws require a countersink with an 82 included angle, where is a Centre hole must be Various types of rivet heads have included angles of from 90 to degree. It is the operation of machining a flat, circular surface around a whole to provide a seat for a Bolt head, nut or washer.
Holes that are to be tapped threaded are first are drilled to a specified size. In order to tap holes on a standard drilling machine, a tapping attachment must be used. This attachment is held in the spindle of the drill press by a tapered Arbor, who drives the friction type mechanism. The tap holding chuck accurately centers the tap on the round part of the shank and floating jaws hold the tap on its square end in a firm, rigid grip, which prevents the tap from pulling out of the chuck when reversing.
It is a hole making operation where an annular groove is produced leaving a solid cylindrical core in the center. Trepanning is feasible if the hole has a diameter of more than 50 mm. Hole depth of times the diameter can be obtained in Trepanning. I hope you understand all of these, and if someone asks you this question you may able to answer. Now I want to hear from you. If you like my article do share with your friends and also on your social handles.
And also you can comment down below your doubts , or whatever you wanna tell me. I love to hear your opinion and suggestions. We also have dedicated Facebook community for you guys, if you wish you can join our community, here is the link of our Facebook group. So, Cheers, and enjoy the rest of your day. Plane drilling operation Core , Step , Boring , Counter boring operation Reaming operation Countersinking operation Spot facing operation Tapping operation Trepanning operation.
Your email address will not be published. Save my name and email in this browser for the next time I comment. In this article, you will get to know about Rake Angle, its importance and its types.
So let's get started. What is a Rake Angle? In this article, I will be going to give you an in-depth overview of the Quick Return Motion Mechanism. So let's get started! What is the Quick Return Mechanism? A quick return motion mechanism Skip to content. Page Contents. Parts of drilling machine. Gang drilling machine Photo Courtesy: IndiaMart. What is a Drilling Machine? Drilling machine is a machine tool which is used to drill the workpiece.
explain with a neat sketch radial drilling machine
The radial drilling machine is intended for drilling medium to large and heavy work pieces. The machine consists of a heavy, round, vertical column mounted on a large base. The column supports a radial arm which can be raised and lowered to accommodate work pieces of different height. The arm may be swung around at any position over the work bed. MQP-1 - Dr. Ambedkar Institute of Technology 10 The swing of the arm of a radial drilling machine is usually.
Detailed Explanation of Drilling Machine and Radial Drilling Machine was presented below along Parts, Working Principle, Operations, Advantages, Disadvantages, Applications [PDF] The line diagram of Drilling machine is shown below.
Drilling machine – Parts, Types, Operations and More with PDF
The Swivel table can move up and down by means of rotational motion and can be locked to the column by means of locking nut. It consists of motor, stepped pulley, V-belt and the Spindle. The power transmission is explained in the working of the drilling machine. By the rotation of hand-wheel, the spindle moves up and down in the vertical direction in order to give the necessary amount of feed to the work.
The drilling machine is one of the most important machines in a workshop. In drilling machine holes are drilled quickly and at a low cost.
In the last class, we had discussed the Milling Machine and its operations in a detailed way whereas, in today's article, we will discuss the concepts of Drilling Machin ing along with its parts, working principle advantages, disadvantages, and applications. It is a machine which is used to drill the holes on the components or workpiece with the help of drill bits. The base is made up of Cast Iron which has the capability of high compressive strength , good wear resistance , and good absorbing capability i.
The machine consists of a heavy, round, vertical column mounted on a large base. The column supports a radial arm which can be raised and lowered to accommodate workpieces of different heights. The arm may be swung around to any position over the work bed.
A radial drilling machine or radial arm press is a geared drill head that is mounted on an arm assembly that can be moved around to the extent of its arm reach. The most important components are the arm, column, and the drill head.