JIS-B-6545-1991-R2003-ENG.pdf

J I S Bab545 91 W 4933b08 0088552 8 W UDC 621.924.5.001.4:674.24.05 JIS JAPANESE INDUSTRIAL STANDARD Drum sanders - Test and inspection methods JIS B 6545-1991 Translated and Published bY Japanese Standards Association Printed in Japan 7s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*6545 91 m 4733608 0088553 T m In the event of any doubt arising, the original Standard in Japanese is to be final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*b545 91 4733608 0088554 L M ' UDC 621.924.5.001.4:674.24.05 JAPANESE INDUSTRIAL STANDARD J I S Drum sanders - Test and inspection methods B 6545-1991 1 . Scope - This Japanese Industrial Standard specifies the test methods relating to the functions, running performances and rigidities, and to the accuracy and machining accuracy inspection methods of the drum sanders of which effective l e n g t h s ( ' ) of drums are 1100 mm or over to 2000 mm or Under. Note (l) Remarks 1 . The maximum width of grindable workpieces. The drum sander means the machine which grinds the surfaces of plywood and the like being fed automatically by the abrasive cloths and paper which are wound around the outer peripheral faces of rotating drums. consists of two pieces of drum or more (see JIS B 0114). Mostly the machine 2 . The applicable standards to this Standard are as given in the following: JIS B 0114-Glossary of Terms for Wood Working Machinery. JIS B 0905-Balance Quality Requirements of Rigid Rotors JIS B 6507-General Code of Safety for Wood Working Machinery. JIS B 6521-Methods of Measurement for Noise Emitted by Wood Working Machinery. JIS R 6251-Abrasive Cloths JIS R 6252-Abrasive Papers 3. The units and numerical values given in Standard are in accordance with the traditional units, and are appended for informative reference. in this 2 . Function test methods The functional tests of drum sanders shall be in accordance with Table 1 . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*b545 91 m 4933b08 0088555 3 = 2 B 6545-1991 Table 1 . Function test - No 1 - - 2 - 3 - 5 - 6 - 7 - 8 - 9 - 10 11 - 12 - Test items Electric equipments _ _ _ _ _ Start, stop and running operation of drum Changing operation of rotational speeds of drum Start, stop and running operation of feed device Changing operation of feed speeds Operations of up and down and clamping of table Cross slide of drum Attaching and de- taching of abrasive paper and cloth Brushing device Safety device Lubri.ca ting device Accessory device Test method Before and after the running test, examine insulating conditions once each. Carry out 10 times start and stop repeatedly at an appropriate rotational speed of the drum t o examine the smoothness and reliability of actions. Change rotational speed of the drum on overall rotational speeds of marking t o examine the smooth- ness of actions and reliability of indications of the operating device. A t an appropriate feed speed, carry out start and stop 10 times repeatedly t o examine the smooth- ness and reliability of actions. Change speed on overall feed speeds of marking; ,and for the variable speed type, change speed on three feed speeds, lowest, intermediate and highest feed speeds t o examine the smoothness of actions and the reliability of indications of the operating device. Raise and lower the table t o examine the smoothness and uniformity of actions thoroughly. For the center and both ends of the motion, examine the reliability of clamping and the smooth- ness of actions of the clamping device. Raise and lower the drum t o examine the smoothness of actions and reliability of indications thoroughly. Examine the smoothness and reliability of attaching and detaching of abrasive paper and cloth. Examine the smoothness and reliability of the function . Examine the reliability of the safety function for workers and protective function for machine (see J I S B 6507). Examine the reliability .of the functions such as oil-tightness, proper distributcon of the o i l quantity. Examine .the reliability of the functions. Remarks: For the drum sanders which are not provided with the said functions, the corresponding test items t o these i n Table 1 may be omitted. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*b545 92 4933b08 0088556 5 m I _ Time of measure- ment h.min. Rotational speed Feed rate Rotational Bearing temperatures Required electric power Noise Rom De- of drum speed of (“Cl temper- scrip- Feed Voltage Current Input rlmin írpm) brush rlmin roll Brush dB V A k W (A) O C Marked Measure dmin (rpm Front Rear 3 B 6545-1991 3. Running test methods 3.1 No-load running test Rotate the drum, continue running it for 30 t o 60 minutes, measure the required electric power and noise after the bearing temperatures have been stabilized, and record on each item specified i n the Recording Format 1 of Table 2 and check for abnormal vibration by touch. 2 The measuring conditions of noise shall be recorded i n the description column. 3.2 Load running test Grind the test specimen, measure the required electric power and noise t o record on each i t e m specified i n Recording Format 2 of Table 3., and check for abnormal vibration and conditions of the ground surface by touch. For the measurement of the required electric power, test shall be carried out by changing changing the feed speed the depth of cut at a definite feed speed or at a definite depth of cut. The measurement of noise shall be i n accordance with J I S B 6521. Table 3. Record format 2 Grinding conditions1 De- scrip- tion - - Test specimen Required electric power Current i Input I Grinding kW o Y c 2 m i min a - Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS B*b545 91 W 4933b08 0088557 7 W 1 4 B 6545-1991 Rigidity of drum and table Notes (2) It shall be in accordance with the indicating methods of JIS R 6251 and JIS R 6252. ( 3 ) It shall be indicated by the change of intervals between the drum and the table. (4) In the column of the rotational direction of drum, a symbol shall be described in accordance with Fig. 1 . Fig. 1 . Rotational direction of the drum C- Feed direction R tational direction (D) .Feed direction Remarks: The measuring conditions of noise shall be recorded in the description column. 4. Riaiditv test method Y ., The rigidity test on the drum sanders shall be in accordance with Table 4 . Table 4. Rigidity test No. I Test item I Measuring method Diagram of measuring method Apply the test indicator fixed to the table to the center of the drum, apply the load (P) in vertical direction between the drum and the table( 5 ) , and measure the relative displacement between the drum and the table. Note (5) The position where the load is applied shall be as near to the center of the drum as possible, and the distance from the fixed end of the drum shall be recorded. Remarks 1 . The rigidity test of the machines of the same design shall be represented by the test results on a representative set, and on others, may be omitted. 2. The magnitude of the load (P) shall be the recommended value by the manufacturer, and its value shall be recorded. 3. This measurement shall be made when the bearing temperature is stabilized after rotating the drum. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- JTS Bub545 91 m Y933608 0088558 9 m i 5 B 6545-1991 5. Accuracy inspection method 5.1 Static accuracy inspection The static accuracy inspection of the drum sanders shall be i n accordance with Table 5. Table 5. Static accuracy inspection Unit: mm - No - 1 2 Inspectior item C ylindri- city of drum Run out ol drum Measuring method Among the maximum differences of the diameters of the drum( ) which have been measur- ed respectively i n two planes vertical t o each other, including the shaft, con- sider the larger value as the measured value. The measurement shall be made at three places or more at least at the center and both ends(7) of the drum. Apply a test indicator t o the outer peripheral surface of the drum(6 1, rotate the drum manually and consider the maximum differ- ence of the readings of the test indicator during rotation as the measured value . The measurement shall be made at three places, the center and both ends(7) of the drum liagram of measuring nethod Permissible value Effective length of drum 1400 or under 0.04 0.04 Exceeding 1400 0.06 0.06 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*b545 91 m 4933608 O088559 O m 6 B 6545-1991 InspectioI item Cylindri- city of feed roll Run out of feed roll Table 5 . (Continued) Measuring method Among the maximum differences of the diameters of the feed roll which have measured respec- tively in two planes vertical to each other, including the shaft, consider the larger value as the measured value . The measurement shall be made at three places or more, at least at the center and both ends( ) of the feed roll. Apply a test indicator to the outer peripheral surface of the feed roll, rotate the feed roll manually, and consider the maximum differ- ence of the readings of the test indicator during the rotation as the measured value. The measurement shall be made at the center and both ends ( of the feed roll . Diagram of measuring method Unit: mm Permissible value Effective length of c m unde 0.0: - - O.O! - Exceeding L 4 0 0 3 . 0 7 0 . 0 7 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S Bab545 91 M 4933b08 0088560 7 M Diagram of measuring :nspec tion :tem Permissible value Effective length j traight- less of surface of :able - al r-t P cd ci 11-1 O d O *rl ci O El O a I a I 3 9 11-1 O v) *rl rl al r-t r-t cd k cd pi El - 7 B 6545-1991 Unit: mm Table 5. (Continued) ieasuring method lace a straight- !dge on the iurface of the :able i n vertical iirection t o the ieed direction md on diagonal Anes, measure :he clearances rith a feeler ;auge, and :onsider the iaximum value :hereof as the neasured value. ?lace a precision Level i n parallel ;o the feed iirection of the surface of the table, raise the table t o approx. 30 mm from the Lower position, md consider the naximum differ- ence of the readings of the precision level during the time as the measured value. Place a precision level i n vertical to the feed direction of the surface of the table, raise the table t o approx. 30 mm from the lower position, and consider the maximum differ- ence of the readings of the precision level during the time a: the measured value . method of drum 1400 or I Exceeding under 11400 0.03 per 1000 O n) 0.03/m O. 03/m Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*b545 91 W 4933608 00885bL 9 W a B 6545-1991 Notes (6) For the drum which is to be attached with the cushioning body of felt, foam rubber or the like, the measurement shall be made prior to the attachment. ( 7 ) Measurement shall be made avoiding the portion “shear drop“. Remarks: For the drum sanders which are not provided with the said functions, the corresponding inspection items to these in Table 5 may be omitted. 5.2 Dynamic accuracy inspection The dynamic accuracy inspection of the drum sanders shall be in accordance with Table 6. Table 6. Dynamic accuracy inspection Unit: mm/s NO . I ïnspec t ion it em 1 Quality of balance of drum Measuring method Measure the magnitude of unbalance by a balance tester, obtain the magnitude of specific unbalance from the mass of the drum, and calculate the quality of balance (B) from the rotational s p e e d ( ' ) . B=el.l 9.55 where e : magnitude of specific unbalance (mm) n : rotational speed (r/min r p m ) ) Permissible value 6.3 Note ('1 It shall be the two-plane balancing (see JIS B 0905). Informative reference: The permissible value of No. lis the grade G 6.3 of the quality of balance in JIS B 0905. 6 . Machining accuracy inspection method The machining accuracy inspection of the drum sanders shall be in accordance with Table 7. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:22:00 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*6545 91 W 4933608 0088562 O W a * , a 0 a Inspection item - iccu- nacy ,f :hick. Less Note (') Table 7. Machining accuracy inspection Measuring method Grind the test specimen having the thickness approximately equal to the maximum grindable width of the machine, measure the thicknesses of measuring points( ') by an outside micro- meter, and consider the maximum differencc thereof as the measured value. Grind the test specimen(s) of which the thick- ness of the measuring points ( 9 ) have been measured by the outside micro- meter after arranging the specimen(s) in parallel to the gr indable maximum width of the machine, measure the thickness of the measuring