Q.2. Find standard time of Allen 17-inch vertical single-spindle drill according to the ten observation data of its elements. Take rating factor and total allowances as 105% and 5% respectively. Elements Observations 1 2 3 4 5 6 7 10 1,25 1,30 1,20 1,35 1,20 1,25 1,27 1,30 1,32 1,23 89 1. Study Drawing 2. Get materials and tools and return and place ready for work 3. Adjust height of table 3,75 3,80 3,95 3,70 3,75 3,80 3,92 3,77 3,78 3,75 1,31 1,32 1,33 1,38 1,30 1,28 1,27 1,30 1,32 1,33 0,09 0,1 0,15 0,08 0,06 0,09 0,1 0,09 0,12 0,11 4. Start and stop machine 5. First-piece inspection 6. Tally production and post on voucher 7. Clean off table and jig 8. Insert drill in spindle 5,25 5,20 5,23 5,30 5,28 5,29 5,33 5,25 5,20 5,30 1,50 1,52 1,55 1,50 1,53 1,6 1,58 1,52 1,59 1,60 1,75 1,77 1,80 1,82 1,75 1,69 1,70 1,68 1,75 1,81 0,16 0,18 0,14 0,16 0,20 0,22 0,14 0,18 0,21 0,17 9. Remove drill from spindle 0,14 0,16 0,15 0,20 0,12 0,10 0,15 0,18 0,14 0,14
没有找到相关结果