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Production product bench and mounting tool, clamping and auxiliary, files

Production product bench and mounting tool, clamping and auxiliary, files

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VIDEO ON THE TOPIC: Kreg Bench Clamps

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Rockler Woodworking Jigs

Science Research. Abstract: The paper gave a detailed definition of jigs and fixtures, and also identified the numerous advantages that are associated with the use of jigs and fixtures in manufacturing to include: production increase, cost reduction, interchangeability and high accuracy of parts, reduction of the need for inspection and quality control expenses, reduction of accident as safety is improved, automation of machine tool to an appreciable extent, easy machining of complex and heavy components, as well as low variability in dimension which leads to consistent quality of manufactured products.

The work also explained that since the design is dependent on numerous factors which are analyzed to achieve an optimum output, that jigs and fixtures should be made of rigid light materials to facilitate easy handling.

For adequate strength and rigidity, a mild steel with 16 millimeters diameter was chosen for the design of a sample jig and fixture. Mild steel which contain about 0. With 1. The Force acting on each of the lips was calculated as N, the Torque M was gotten as N-mm, while the value of the Clamping Force was also calculated as N. The calculated values confirmed that a 16 millimeter diameter mild will lead to the construction of a rigid and strong jigs and fixtures that will guarantee high machining accuracy, consistent quality of products, and interchangeability.

Finall, the paper advocated that jigs and fixtures must be provided with adequate clearance which should allow for variations in size of components especially during forging, milling, and casting operations.

Therefore, to meet up with the high demand, manufacturers have reacted by introducing innovative ways of manufacturing high quality products at a faster rate. The production processes has witnessed numerous changes and evolution with the introduction of numerous innovative manufacturing concepts which include Lean Production System, Cellular Manufacturing, Single Minute Exchange of Dies, as well as Takt Time Analysis. These creative approaches have necessitated the need for a reliable and cheaper tools and work-holding devices.

As the efficient running of a manufacturing company which demands a prompt and simple work positioning strategy for correct operations depends largely on the interchangeability of machine components and work-pieces, to ensure un-complication of assembly, and unit cost reduction, as well as to become competitive, reduce the enormous manufacturing cost, and also increase their profitability, the industry has resorted to streamlining its supply chain in a bid to maintaining a very low amount of inventory.

This has also led to the demand for a better and cost effective work-holding devices which will ensure better quality products, reduce lead time, and also increase throughput. Also, although some machining operations are so straight-forward, like in turning where the job is secured tightly on the chuck while the turning operations are easily performed, some jobsin other operations may not be easily held on either the three or four jaw chucks, and may also require the tools to be guided by the means of a different device.

This explains the need for production standard work-holding devices to increase the rate of manufacturing. Jig is the device which guides the tool, while fixture is a device that securely holds the job in position during machining operations.

Jigs and Fixtures. Jigs and fixtures are manufacturing tools that are employed to produce interchangeable and identical components. They are unique tool-guiding and work-holding devices designed specifically for machining and assembling large number of parts. Chennu , listed the following as the purposes of jigs and fixtures reduction of production cost, increase of production rate, high accuracy of products without any manufacturing defects, provision of interchangeability, easy machining of complex shaped parts, reduction of quality control costs, etc.

Jigs and fixtures eliminate the need for a special set up for every work-piece thereby facilitating production and also ensuring that every work piece is manufactured within a predetermined tolerance. According to Meduettaxila , Jigs and fixtures "eliminate the necessity of a special set up for each individual part. Also Mechnol , observed that The main advantages of Jigs and fixtures are "durability, setup reduction, improvement in productivity, reduced decision making in operation selected from the standard components.

The major difference between a jig and a fixture is that jigs guide the cutting tool to its precise position, as well as locating and supporting the work-piece during operations. The application of jigs and fixtures in manufacturing operations lead to the production of faster, more accurate, and reliable products at a reduced cost. A jig is a work-holding device that supports, holds, locates a work-piece and also guides the cutting tool for the desired machining operations.

Nanthakumar and Prabakaran , explained that a jig is a type of custom-made tool used for the location and motion of another tool. They observed that the primary purpose of a jig is to provide repeatability, accuracy, and interchangeability in the manufacturing of products. Although the most common jigs are the drilling and boring jigs, they are all identical except for the shape, type, and the position of the bushings for drilling or boring. Figure 1. A typical Jig. Source: engineeringhut.

According to Joshi , Jigs are imparted with tool guiding elements such as drill bushes, which regulate the tool to the right position in the work piece. He observed that they are rarely clamped on the machine table as it is essential to push the jig on the table to align the numerous bushes in the jig with the spindle of the machine. Thedifferent types of jigs are template jig, drilling jig, open type jig, etc. Fixtures are rigid and sturdy mechanical devices which allow fast and precision machining with reliable quality, interchangeability, and lead time reduction.

As a work-holding device, fixtures do not position, guide, and locate the cutting tool, as it is achieved by making necessary adjustments on the machine. Kaija, andHeino , explained that the "main purpose of a fixture is to locate and in some cases hold a work-piece during either a machining operation or some other industrial processes. Figure 2. A typical fixture: Source: engineeringhut. Fixtures often fastened to the machine table, are made to hold the work piece firmly and in the desired position during machining operations.

While fixtures are always identified by the machine tool where they are applied, they have broader applications than jigs, and also manufactured for operations where the cutting tools cannot be easily maneuvered like the drilling or boring tools. The different types of fixtures are welding fixture, tapping fixture, milling fixture, boring and drilling fixture, milling fixture, turning fixture, etc.

Advantages of Jigs and Fixtures. The advantages of jigs and fixtures includebut not limited to the following:. Elements of Jigs and Fixtures. The Body. As the most outstanding element of jigs and fixtures, the body is constructed by welding of different slabs and metals usually mild steel or by casting of cast iron.

After the fabrication, it is often heat-treated for stress reduction as its main objective is to accommodate and support the job. Channel body type — this is fabricated from the regular steel channel. Box body type — usually made very light, the box type jig body is adopted where a work-piece needs drilling in various parts, hence the jig is fabricated to have a required amount of drill bush plates. Plane body type — this is the most common type of jig body and is often applied when the work-piece requires drilling or boring, hence the provision of drill bushes on it.

Leaf body type — usually made from block of steel as it holds and supports heavy components. Clamping Devices. Without sacrificing efficiency and effectiveness, the clamping devices must be very simple and easy to operate. Apart from holding the work-piece securelyin place, the strong point of clamping devices is its ability to withhold the strain of the cutting tool during operations.

The bench vice is a popular example of a clamping device. The need for clamping the work-piece on the jig or fixture is to apply pressure and press it against the locating components, thereby fastening it in the right position for the cutting tools.

The familiar clamping devices include:. Hook bolt clamp - a simple clamping device generally used where the normal clamping tip cannot fit in. Latch clamp — this is a unique clamp which provides space for the loading and the unloading of a work-piece through its latch or lid.

Other clamping devices are the C — clamp, the Bridge clamp, and the Heel clamp,. Locating Devices. Made with hardened steel and with different designs, the pin is the most popular device applied for the location of work-piece in jigs and fixtures.

The locating width of the pin is made bigger than the shank to stop it from being pressed into the jig or fixture body because of the weight of the cutting tools or work-piece. Locating pins — the locating pins are used for the location of the work-piece when completed or reamed holes have been provided on the work-piece. The two types of locating pins are cylinderical and conical locating pins. Jack pins — jackpins also referred to as spring pins are used for the location of work-piece whose dimension will vary during operation.

The pin is designed to rise under spring pressure or in the contrary the weight of the work-piece pushes it down. As the position of the work-piece is firmly fixed, the locking screw is used to fasten the pin in the desired position. Those with flat heads are often used to provide support and location to machine surface, as more contact area is accessible during location.

Because of their stability, the head support locating pins are for supporting coarse or rough surfaces during machining. Jig Bushing or Tool Guide. Guiding parts like jig bushings and templates which must be wear resistant, interchangeable, and precise, are used to locate the cutting tool relative to the component being machined.

Jig bushes are applied in drilling and boring, here for the drill to pass through, a bush fits into the hole of the jig.

Bushes are mainly made of reliable grade of tool steel in order to ensure hardening at a low temperature and also reduce the risk of fire cracking. Although, hardened steel bushes are preferred for guiding reamers, drills, and taps, the guiding tool bushings can also be made of cast iron.

The jig bushings are categorized into three: the linear wearing bushes, press-fit wearing bushes, and renewable wearing bushes. Selection of Materials. There are a wide range of materials from where jigs and fixtures could be made, to resist tear and wear, the materials are often tempered and hardened. Also, phosphor bronze and other non-ferrous metals, as well as composites, and nylons for wear reduction of the mating parts, and damage prevention to the manufacturing part is also used.

Some of the materials are discussed below:. As the manufacturing of screws is very expensive and also wastes a lot of time, the reduction of their tear and wear is often achieved by using replaceable bronze mating nuts made with phosphor bronze. When alloyed with vanadium and molybdenum for it to retain toughness at very high temperature, die steels are applied in the fabrication of jigs and fixtures that are used in high temperature work processes which include extrusion, forging, and casting processes.

When tempered, they are applied in the production of jigs and fixtures for reaming, drilling, boring, and cutting operations. Design of Jigs and Fixtures. The design of jigs and fixtures is dependent on numerous factors which are analyzed to achieve an optimum output.

Jigs should be made of rigid light materials to facilitate easy handling, as it has to be rotated severally to enable holes to be drilled from different angles. It is recommended that four feet should be provided for jigs that are not bolted on the machine tool, to enable the jig to wobble if not well positioned on the table and thereby alert the operator.

To achieve their expected objectives, jigs and fixtures consist of many elements:. The extent of automation, capacity and type of the machine tool where jigs and fixtures will be employed;. The availability of locating devices in the machine for blank orientation, and suitable positioning;. Figure 3. Major elements of jigs and fixtures. The factors below are to be reflected upon during design, production, and assembly of jigs and fixtures due to the targeted increase in throughput, quality of products, interchangeability, and more accuracy.

Spogel ,advised that the design of jigs and fixtures must be fool-proof so that the tools, bushes, and components cannot be inserted except in the correct way.

Apart from ensuring that locating points are made adjustable when the component is a rough casting and may be out of alignment, he admonished that the clamps should be located in the best position in order to resist the cutting tool pressure when at work.

A proper design must also incorporate tolerances at the design stage for jig andfixtures components that are standardized.

Pipe Mount

The metal smelting and refining industry processes metal ores and scrap metal to obtain pure metals. The metal working industries process metals in order to manufacture machine components, machinery, instruments and tools which are needed by other industries as well as by the other different sectors of the economy. Various types of metals and alloys are used as starting materials, including rolled stock bars, strips, light sections, sheets or tubes and drawn stock bars, light sections, tubes or wire. Basic metal processing techniques include:.

A chuck is a specialized type of clamp used to hold an object with radial symmetry , especially a cylinder. In drills and mills it holds the rotating tool whereas in lathes it holds the rotating workpiece. On a lathe the chuck is mounted on the spindle which rotates within the headstock.

This manual sets forth the minimum requirements acceptable at Bench Vice Assembly 1 In this project, you will create the Bench Vice assembly. Book Machine Drawing pdf by K. The tolerances of both types are given in the tables below. Read this chapter for an in-depth look at tools that can help you plan better for your next machine.

Programmable power supply circuit

Science Research. Abstract: The paper gave a detailed definition of jigs and fixtures, and also identified the numerous advantages that are associated with the use of jigs and fixtures in manufacturing to include: production increase, cost reduction, interchangeability and high accuracy of parts, reduction of the need for inspection and quality control expenses, reduction of accident as safety is improved, automation of machine tool to an appreciable extent, easy machining of complex and heavy components, as well as low variability in dimension which leads to consistent quality of manufactured products. The work also explained that since the design is dependent on numerous factors which are analyzed to achieve an optimum output, that jigs and fixtures should be made of rigid light materials to facilitate easy handling. For adequate strength and rigidity, a mild steel with 16 millimeters diameter was chosen for the design of a sample jig and fixture. Mild steel which contain about 0. With 1. The Force acting on each of the lips was calculated as N, the Torque M was gotten as N-mm, while the value of the Clamping Force was also calculated as N. The calculated values confirmed that a 16 millimeter diameter mild will lead to the construction of a rigid and strong jigs and fixtures that will guarantee high machining accuracy, consistent quality of products, and interchangeability.

Hydraulic ram cap removal tool

Items 1 to 12 of total. Cap Removal Tool and Thread Chaser. The blocks keep wheelsets off of the shop floors, preventing damage to concrete or asphalt surfaces. Ram Industries is a quality manufacturer of cylinders of all kinds, including custom, agricultural, hydraulic, air, pneumatic, synchronizing, welded and telescopic.

Sica , is a globally renowned Italian producer of downstream equipment for plastic pipes: haul-offs, saws, belling machines, packaging machines, automation and auxiliary equipment. Keep up with Sica's latest news and events through the main field magazines and make sure you receive "Pipes online", Sica's newsletter.

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Machine tool

An indispensable tool and its origin. In the mists of the distant past, whoever came upon the idea of fixing items to be worked on in such a way that they would not move under the pressure of sawing, filing and boring, is unknown. The astonishing fact is that today in the computer age, the vice as a purely mechanical tool is indispensable; and no workshop crammed with electronic devices can do without it. A decisive step in the development of this indispensable tool into its present form was the replacement of clamping techniques using wedge and hammer by clamps with threads in the middle ages.

Marvin Test Solutions, a vertically-integrated aerospace test and measurement company, has created and delivered innovative, reliable test systems for factory, depot, intermediate, and flightline use since This site uses cookies to provide you better browsing experience. Learn more about our Privacy Policy and Terms of Use. Core Test System TS Digital Test System TS

History - Bench Vice

The comprehensive clamping jaw program offers a large number of the most diverse jaw types for all clamping options. Suitable for manual lathe chucks, independent chucks and power chucks from different manufacturers both in industrial and artisan production. Whether drill chucks, live centres, vices, gripping technology, power chucks, cylinders, tool clamping systems or special designs: experience the product portfolio in the new eCatalogue. The clamping tools which we manufacture are as varied as the sectors for which we work. We are open to all the requests and needs of different fields. Regardless of the requirements which different industries and sectors present. We offer sophisticated and innovative solutions for a wide variety of applications. Our specialists also develop special designs for customised requirements.

We manufacture replacement airtool parts for Henry Air Tools, Top Cat Air Tools, When it comes to file compatibility, Trados and in particular MemoQ support a Meter Reads: 13, Hr* Details: hyd Q/C bkt, aux hyd, A/C cab, ride ctrl, high-volume Punch Down Cable Installation Tool, with adjustable impact, is the.

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. This auxiliary table doubles the cutting surface of your bandsaw, with T-tracks to assist in setting up jigs and cutting guides. The common 14" band saw is one of the most versatile shop machines. You can crosscut and rip on it, do circles and complicated curves, even scrollwork with the right blade.

Machine Tools

Machine tools play the same central role in metalworking that computers play in data processing. They shape and process metals into components. Manufacturers then assemble these components into durable goods and also use parts in many other products.

Chuck (engineering)

A machine tool is a machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding , shearing, or other forms of deformation. Machine tools employ some sort of tool that does the cutting or shaping. All machine tools have some means of constraining the workpiece and provide a guided movement of the parts of the machine. Thus the relative movement between the workpiece and the cutting tool which is called the toolpath is controlled or constrained by the machine to at least some extent, rather than being entirely "offhand" or " freehand ".

Клушар закрыл глаза, силы покинули .

Именно так, черт возьми. Я был там, внизу. Резервное питание подает слишком мало фреона. - Спасибо за подсказку, - сказал Стратмор.  - У ТРАНСТЕКСТА есть автоматический выключатель.

Machine drawing assembly pdf

Это ей снится. Трудно было даже пошевельнуться: события вчерашнего дня вычерпали все ее силы без остатка. - Дэвид… - тихо простонала. Ответа не последовало. Она открыла глаза, не в состоянии даже протянуть руку. Простыня на его половине кровати была холодной.

Machine drawing assembly pdf

Колокола на башне Гиральда созывали людей на утреннюю мессу. Этой минуты ждали все жители города. Повсюду в старинных домах отворялись ворота, и люди целыми семьями выходили на улицы.

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  1. Akijinn

    Excuse, that I can not participate now in discussion - it is very occupied. I will return - I will necessarily express the opinion on this question.