Design & developement of swing frame testing fixture of Bandsaw Machine.
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The document describes the design and development of a testing fixture for the swing frame of a bandsaw machine. Key details include: - The fixture was created to reduce inspection time and improve accuracy by properly aligning and drilling holes in the swing frame. - Materials like mild steel, EN24 and EN8 were selected for different fixture components based on properties like strength, machinability and wear resistance. - The design of the fixture was tested and different plates were allocated to wing positions to locate and securely hold the swing frame for drilling operations. - The fixture allows for reduced manufacturing cycle time and increased precision, reliability and productivity when inspecting the swing frame.
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Design & developement of swing frame testing fixture of Bandsaw Machine.
- 1. Design and Development: Swing frame testing fixture for Bandsaw Machine. Created By: Mr. KOLI VAIBHAV S. Mr. ZADE VIKAS R. Mr. DATAR SHREEKAR R. Mr. BHOSALE DHANANJAY B. Guided By: Prof. Mr. P. S. BADAKAR Abstract: The aim of project is to reduce the inspection timing with proper alignment & drilling holes . Also with increase in accuracy, precision & reliability on fixture of swing arm of band saw type machine. This proposed method has to design & fabricate the fixture to reduce the manufacturing cycle time. Testing Fixtures for Swing Frame
- 2. Company Profile Name : SPM tools Pvt. Ltd. Address : Plot No. 2 to 8, Sector ‘A’, Parvati Co-op. Ind. Estate, YADRAV-416145. Dist.- Kolhapur, Maharashtra (India). Type of Firm : CNC, Band Saw & Special Purpose Machines. Website – www.spmtools.co.in Year of Establishment – 1984 Total Shifts – General
- 3. Horizontal Band Saw Machine (HBM250) Band saw machine is power tool, uses blade to cut the metal rods (250 mm). The cutting blade rotating on 2 wheels in the same plane.
- 4. Swing Arm Two wheels are mounted on swing arm. Overall weigh approx 35-40 Kg.
- 5. Introduction Fixture is work holding device that holds, supports & locates the work piece for a specific operation but does not guide the cutting tool. . The main purpose of a fixture is to locate & in some cases hold a work piece during either a machining operation or some other industrial process
- 6. Need of Fixture Easy, quick and consistently accurate locating, supporting and clamping. Guidance to the cutting tool like drill, reamer etc. To reduce operator’s labor and skill – requirement To reduce measurement and its cost. Increase in productivity and maintain product quality consistently.
- 7. Material Selection Fixture Resting Pad Clamping Locating Pin Mild Steel EN24 EN8 EN353
- 8. Purpose of Selection MS for Fixture: High strength & malleability, quite soft. Desirable weldability & machinability. EN24 for Resting Pad: Excellent machinability & wear resistance. Good hardness & tensile strength. EN8 for Clamping: Good tensile strength, machinable in any condition, enhanced wear resistance.
- 9. Design Principles Total machining time for workpiece is minimize. Easy & quick loading & unloading of workpiece. The fixture should be open as possible to minimize cheap or burr accumulation. Sufficiently stiff to secure the preset accuracy of machining.
- 10. Experimental Drafting Jigs & Fixtures in Aircraft Industries
- 12. Final Drafting
- 13. Final Design
- 15. Working Procedure First of all two pieces of 5 m long "C" channels along with 1 m extra channel is taken for cutting process. These pieces are fabricated (welded) with number of joints to form a bed. Plates are welded above base at respective positions. Cylindrical components attached to the plates by screws & welding joints.
- 17. Assembly Design
- 18. Testing Procedure SWING FRAME LEFT WING RIGHT WING DECISION A +1 +0 -2 +0 +2 +3 +4 +0 -1 Accepted B -2 +3 +5 -3 +2 +1 +0 -6 +4 Rejected C -1 +4 +0 -1 -2 +0 +1 +3 -2 Accepted Swing frame mounted on fixture with horizontal zero level stoppers attached. Drilling tool of machine is placed over points where drilling should be done and values of bend tested as below.
- 19. Allocation Plates Designs ‘E’ Plate ‘C’ Plate ‘O’ Plate
- 20. Plate Allocation ‘E’ Plate ‘C’ Plate ‘O’ Plate
- 21. Cost Estimation Sr. No. Name of component Price in Rupees 1 Welding cost 19000 2 Machining cost 5000 3 Clamping 400 4 Resting 10000 5 Locating 700
- 22. Advantages Minimize the possibility of human error. Permit the use of medium-skilled labour. Reduce the manufacturing time. Allow the production of repeat orders without retooling. The directions of motion for make drill is organised & deterministic. The total time for make fix work piece & release in short.
- 23. Conclusion The fixtures are very important part of manufacturing systems. The fixtures of appropriate design may be used to restrict certain of the unbalanced forces, and thus reduce the requirements of control by the operator. Understanding how to design and development of inspection fixture will help to get more accuracy, alignment & testing measurements along with production of swing frame.
- 24. References www.spmtools.ac.in User manual of respective machine. Reference book of Production Engineering by P. C. Sharma. Reference book of Manufacturing Engineering by P. G. Deshpande. Brochure and Catalogues
- 25. Thank You