Disclosure to Promote the Right To Information

Transcription

1 इ टरन ट म नक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged counities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. ज न1 क अ+धक र, ज 1 क अ+धक र Mazdoor Kisan Shakti Sangathan The Right to Information, The Right to Live प0र 1 क छ ड न' 5 तरफ Jawaharlal Nehru Step Out From the Old to the New IS (1985): Proforma for purchase specification for machine tools, Part 6: Bench/pillar type drilling machines [PGD 3: Machine Tools]! न $ एक न' भ रत क +नम-ण Satyanarayan Gangaram Pitroda Invent a New India Using Knowledge! न एक ऐस खज न > ज कभ च0र य नहB ज सकत ह ह Bhartṛhari Nītiśatakam Knowledge is such a treasure which cannot be stolen

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4 UDC ( ) : IS : 6883 ( Part ~6 ) Is1 1 I \ Indian Standard PROFORMA FOR PURCHASE SPECIFICATION FOR MACHINE TOOLS PART 6 BENCH/PILLAR TYPE DRILLING MACHINES I. scope- Lays down the proforma for the preparation of purchase specifications for bench/pillar type drilling machines. It also gives essential information about the bench/pillar type drilling machines and their accessories which will enable the user to assess their usefulness and applicability. 2. Proforma n Specifications Reference to Unit Actual Indian Standard Values (1) (2) (3) (4) 2.1 Type Bench/Pillar 2.2 Drive Belt/Gear 2.3 Capacity Drilling oapacity a) In steel having 600 MPa tensile strength b) Cutting speed c) Feed m/min. /rev Tapping capacity a) Metric threads ( stds/fine ) up to b) Any other threads Distances a) Max/Min distance between work table and spindle b) MaxIMin distance between spindle and base plate *is : 7X Work table a) Rectangular/circular b) Clamping area c) T-slots 1) Nominal size IS : ! I x 44 2) Number/spacing Max welght of the job (Including fixture, etc) that can be loaded on the work table IS: kg *For pillar type only. Adopted 17 September 1985 I 0 June 1986, ISI INDIAN STANDARDS INSTITUTION MANAK BHAVAN. 9 BAHADUR SHAH ZAFAR MARG NEW DELHI I Gr 3

5 _- IS : ~6893 ( Part 6 ) Specifications Reference to hdian Standard unit Actual Values (1) (2) (3) (4).4 Drill Spindle Taper In spindle bore IS : i Spindle travei Auto/Manual.5 Spindle Speeds No. of speeds/range infinitely variable A&n/Max IS : i rev/min (Speed torque characteristics revlmin to be specified Feeds No. of feeds/range - IS : /mln 1.7 Electricals Total power kw Power supply V, Ph, Hz Main motor a) Type b) Frame size and mounting c) Output(s) d) Speed(s) e) No. of phases f) Power factor g) EfTiclency h) Rated voltage I) Frequency k) Type of duty m) Class of Insulation n) Ambient temperature p) Type of protection q) Type of cooling r) Vibration limits 8) Any other features IS : IS : IS : IS : kw rev/mln percent V HZ % micron Auxilary motor(s) a) Type b) Frame size and mounting c) Output(s) d) Speed(s) e) No. of phase f) Power factor g) EfTiciency h) Rated voltage 1) Frequency k) Type of duty m) Class of insulation n) Ambient temperature p) Type of protection q) Type of cooling r) Vlbration llmlts 8) Any other features f IS : IS : IS : IS: kw rev/min Yrcent HZ C - - micron P

6 IS : 6893 ( Part 6 ) SpecifEations Reference to Unit Actual Indian Standard Values (1) (2) (3) (4) 2.8 Coolant Pump a) Output(s) of motor b) Speed of motor c) Discharge of pump at Max working height (see dimension C in the figure of Appendix A) IS : kw rev/min f/min 2.9 Geometrical and Practical Accuracy a) For bench type drilling machines b) For pillar type drilling machines IS : IS : n 2.10 Noise Emitted by Machine IS : db 2.11 Mechanical Guarding IS : Colour IS : Weight of Machine with Electricals and Standard Accessories kg 2.14 Floor Space Occupied (length x wldth ) X 2.15 Standard Accessories: Details of Accessories: 2.16 Special Accessories: Details of Accessories: Note- While submitting quotations, the following informations shall be furnlshed by manufacturers/ suppliers together with technical literatures and capacity chart of the machine (see Appendix A for a representative capacity chart for bench/pillar type drilling machines). a) Hardness of base plate and table, and b) Any other special features. 3

7 IS : 6995 ( Part 6 ) APPENDIX [Clause 2.8 (c) ] REPRESENTATIVE CAPACITY CHART FOR BENCH/PILLAR TYPE DRILLING MACHINES Note -Manufacturers/suppliers shall specify the basic information called for in the figure below: A 1 SLOT AS PER IS:2013 -_---_--_ L I_ c A = distance between spindle axis and pillar face, B = Max/Min distance between spindle-to-worktable, C = MaxIMin distance between splndle-to-base plate, D = dia of cross-section of pillar, E & F - clamping area, G & H = overall dimensions of base plate. J = overall height of machine, L = swing out position, and W - overall width of machine. 4

8 IS : 6893 ( Part 6 ) EXPLANATORY NOTE The proforma for preparation of purchase specification for machine tools has been prepared to enable a prospective buyer to collect data from various manufacturers/suppliers for purposes of comparison. This proforma is meant to be sent out with an enquiry by the purchaser so that the manufacturers/suppliers can fill in the data and send it back to the purchaser to make the comparison easier for the purchaser... The following standards have been published in this series: IS : 6893 Proforma for purchase specification for machine tools IS : 6893 (Part 1 )-I973 IS ; 6893 ( Part 2 )-I 973 IS : 6893 ( Part 3 )-I973 IS : 6893 (Part 4)-1975 IS : 6893 (Part 5 )-I975 Sliding, surfacing and screw cutting lathes Horizontal/universal knee-type milling machines Radial drilling machines k Vertical boring and turning mills Milling machines with table of variable heights, with vertical spindle Reference is made to the following Indian Standards in this standard: IS : IS : IS : IS : IS : IS : IS : IS : ~982 IS : IS : 2642-l 985 ls: IS : IS : ts : IS : IS : Colours for ready mixed paints and enamels ( third revision) Dimensions of three-phase foot-mounted induction motors ( third revision ) Dimensions for self holding tapers (flrsf revision ) Dimensions for T-slots ( second revision ) Coolant pumps for machine tools Speeds for machine tools Feeds for machine tools Test chart for pillar type vertical drilling machines ( first revision ) Test chart for bench drilling machines (first revision ) Spacing of T-slot ( second revision ) Degrees of protection provided by enclosures for rotating electrical machinery Measurement and evaluation of vibration of rotating electrical machines Designation of methods of cooling for rotating electrical machines Sizes for drilling machines Principles of mechanical guarding of machinery Method of measuring noise from machine tools ( excluding testing in anechoic chamber6 ) 5 Printed at Arcee Prom. Now DehWndia