This will help in understanding the functional requirements of individual parts and their location. The jigs and fixtures are the economical ways to produce a component in mass. Abstract an automatic indexing drill jig has been designed and fabricated and installed in. While the subjectsof drilling and jig design are closely allied, it is no longer. Commercial jigs are available, but when i saw the bushings available from lee valley, decided to try my hand at making one. Design and fabrication of work holding device for a drilling machine. International journal of engineering research and general science volume 2, issue 2, febmar 2014. Workpiece and leaf jig for workpiece assembly drilling. The work piece can be clamped to the plate and holes can be drilled. Indexing in reference to motion is moving or being moved into a new position or location quickly and easily but also precisely. Fig 16 assembly view of the final product in catia. This content and associated text is in no way sponsored by or affiliated with any company, organization, or realworld good that it may purport to portray.
Drill jig increases productivity by eliminating individual marking, positioning and frequent checking. Difference between bending and drawing blank development for above. Jul 26, 2015 this is a typical example of drilling four holes which are equi. Aug 04, 2015 the application of jigs and fixtures in manufacturing operations lead to the production of faster, more accurate, and reliable products at a reduced cost. Also, you can create a jig and fixture by yourself to do an operation easily. The main purpose of indexing drill jig is to eliminate. It is a supporting device which holds the work, guides the tool and also locating work piece in its position during machining drilling process. Spiral layout and indexing jig upper valley woodturners. Revised feb262019 chop source frame jig assembly instructions. The design and need for jigs and fixtures in manufacturing.
The official platform from autodesk for designers and engineers to share and download 3d models, rendering pictures, cad files, cad model and other related materials. Some means of ejection should exist to release the component if it sticks in the jig. By means of indexing device a hole is drilled then the work piece is moved indexed to next position under the drill bush for drilling automatically. Spiral layout and indexing jig michael foster, breezy hill turning after posting a picture of lobelia, several people asked how i laid out the carving. The rotating pin and indexing plate are locked in place with the indexing lever and a locking pin. Design and fabrication of indexing set up for drill jig. The jig must, ofcourse, haveholesthe sizeof the drill, which are. The drill jig provides interchangeability to the mounting casing. How to subtract a part from another part in assembly duration. In place of simple holes, drill bushes are provided in the plate to guide the drill.
Design and fabrication of work holding device for a. This complete 3d printermade jig assembly is designed specifically for ar15 mil. Worked examples for jigs and fixtures design of jigs. This jig is used for quick drilling of equidistant holes on the circular surface of the work piece. Experimental procedure initially in the beginning of the operation the work piece is fixed in the drill jig after fixing the job the scale is checked and it is locked by a nut.
The drawing on page 2 shows the complete jig with rotisserie stand. Design and fabrication of work holding device for a drilling. In the beginning of operation the drill jig rests on the base plate and drilling is. Modelling and analysis of drilling jig for mounting casing of. May it be a drill jig or a drill fixture the necessity of a clamping device is inevitable. The machined surface not only provides repeatability but usually offers a morestable form of location.
Drill jig helps to drill, ream and tap at a much faster speed and. The drill jig may be clamped to the sheet, in which holes are to be drilled, by means of thumb screws. Quality of the performance of a process largely influenced by the quality of jigs and fixtures used for. Pdf design of jigs, fixtures and press tools researchgate. Study of ejecting devices, table fixing arrangement, and the indexing device. The work piece itself determines the areas of the machined surface used for location. This video make by vishwakarma engineering drawing classes, bhilai nagar. A plate 2 having holes at the desired positions serves as a which is fixed on component 1 to be drilled. These instructions explain the process to assemble the chop source frame jig kit and rotisserie stand. Interchangeability is one of the advantages of jigs. Understand the purpose, principle of operation and field of application of the given machine. In some instances, the entire surface may be machined.
If you continue browsing the site, you agree to the use of cookies on this website. This is an improvement of the template type of jig. The drill 21 is guided through these holes of the template 2 and the required holes are drilled on the workpiece at the same relative positions with each other as on the template. International journal of engineering research and general. Drill jig is device to ensure a hole to be drilled, tapped or reamed in the workpiece at proper place. Drill jig helps to drill, ream and tap at a much faster speed and with great accuracy as compared to holes done conventionally by hand. Drill passes through the steel bushings during drilling operation. A jig is a workholding device that supports, holds, locates a workpiece and also guides the cutting tool for the desired machining operations.
The responsibility of maintain the accuracy of the hole is now shifted from the operator and given to the jig. Oct 06, 2016 assembly and details machine drawing pdf 1. Oct 14, 2016 drill jig, cosiderations to design a drill jig, drill jig types slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Drilling jig is used for mass production and effective cost operation. Mfg tooling 07 jig design university of northern iowa. This indexing drill jig is used to create four equally spaced radial holes in a workpiece. Drill jig consists of a clamping device to hold the part in the position under hardened steel bushings. In this example four equally spaced holes are to be drilled on the periphery of the workpiece. Unit 3 design of jigs design of jigs national institute of. Indexing jig is used to drill holes which are spaced equally along a circle. Jig design guidelines the process of inserting and withdrawing the component from the jig should be as easy as possible.
The modelling of drill jig is by using catia v5r20 software. This is the most basic type and the simplest form of drill jig used when only a few parts are to be produced. Drill jig is successfully designed for mounting casing of electric motor. Girish assistant professor department of mechanical engineering, mlr institute of technology, hyderabad abstract the employment of jigs and fixtures is an important aspect of workshop engineering for the. Design and analysis of indexing type of drill jig iosr journal. In indexing fixture following factors are considered 1the work piece should be positively located and clamped on the fixture independently of the indexing mechanism 2the indexing device should be both rapid in action and positive in location. Indexing fixture a fixture that changes position with regular step like movements. The workpiece is clamped to the indexing plate with use of a cwasher. This book is suitable to the engineering students of b.
The jig is intended for drilling holes at the two faces of the flanges, four in one side and two in the other. So jigs and fixtures are used and serve as one of the most important facility of mass production system. Ample space should be left between the jig body and the component for hand movements. I start by deciding how many spirals the piece is to have. The plate jig are employed to drill holes in large parts, maintaining accurate spacing with each other. There are several types of jigs and fixtures available in the market. These are special work holding and tool guiding device. Drill guide for use with indexing on lathe the need for this jig arose when i decided to embellish an icicle ornament with swarovski crystal rhinestones. Itcd 301001 jigs and fixtures fixture means through which a part is securely fastened to the machine tool table to accurately locate, support and hold the part during the machining operation jig a special class of fixture which in addition to providing all the functions above, also guides the cutting tool during machining.
When indexing a machine part, its new location is known to within a few hundredths of a millimeter thousandths of an inch, or often even to within a few thousandths of a millimeter tenthousandths of an inch, despite the fact that no elaborate measuring or. The cad files and renderings posted to this website are created, uploaded and managed by thirdparty community members. Next, the chapter discusses a design of a box jig for a pipe elbow having flanges at the two ends which are orthogonal. Types of drill jigs and fixtures machine tools engineering. Template drill jig this is a simple plate of metal or wood which has holes at correct location to be made in the workpiece. Used for parts that must be machined on more than one side. An automatic indexing drill jig has been designed and fabricated and installed in a drilling machine. Examine thoroughly, the external and internal features of the individual parts. Template jig can serve as layout guide for locating holes and contours. It is a supporting device which holds the work, guides the tool and also locating work piece in its position during machiningdrilling process. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users.