Flexible Manufacturing Precision Machining Safety Copyright Texas Education

Flexible Manufacturing Precision Machining Safety

Copyright © Texas Education Agency, 2017. These Materials are copyrighted © and trademarked ™ as the property of the Texas Education Agency (TEA) and may not be reproduced without the express written permission of TEA, except under the following conditions: 1) Texas public school districts, charter schools, and Education Service Centers may reproduce and use copies of the Materials and Related Materials for the districts’ and schools’ educational use without obtaining permission from TEA. 2) Residents of the state of Texas may reproduce and use copies of the Materials and Related Materials for individual personal use only, without obtaining written permission of TEA. 3) Any portion reproduced must be reproduced in its entirety and remain unedited, unaltered and unchanged in any way. 4) No monetary charge can be made for the reproduced materials or any document containing them; however, a reasonable charge to cover only the cost of reproduction and distribution may be charged. Private entities or persons located in Texas that are not Texas public school districts, Texas Education Service Centers, or Texas charter schools or any entity, whether public or private, educational or non-educational, located outside the state of Texas MUST obtain written approval from TEA and will be required to enter into a license agreement that may involve the payment of a licensing fee or a royalty. For information contact: Office of Copyrights, Trademarks, License Agreements, and Royalties, Texas Education Agency, 1701 N. Congress Ave. , Austin, TX 78701 -1494; phone 512 -463 -7004; email: copyrights@tea. state. tx. us. Copyright © Texas Education Agency, 2017. All rights reserved. 2

Engine Lathe The engine lathe shown in this presentation is a new 9 X 20 inch model. The basic controls are the same, but may be in different locations. Check the manual for the lathe in the lab. Copyright © Texas Education Agency, 2017. All rights reserved. 3

Engine Lathe Components Headstock Tailstock Bed Carriage Stand or Base Copyright © Texas Education Agency, 2017. All rights reserved. 4

Engine Lathe Components > Bed is a heavy rugged casting that supports the machine. The bed gives the machine its strength and allows for accurate machining. > Headstock is the assembly containing the motor and drives the spindle and gears. Copyright © Texas Education Agency, 2017. All rights reserved. 5

Engine Lathe Components > Carriage is the assembly that moves lengthwise down the bed. It holds the cross slides, compound rest and tool rest. > Tailstock is the assembly that moves on the bed to support the material and holds other tools. Copyright © Texas Education Agency, 2017. All rights reserved. 6

Headstock Controls V-Belt Tension Lever Left/Right Screw Lever Emergency Switch Forward/Reverse Switch Power Light Gear Box Quick Change Lever Copyright © Texas Education Agency, 2017. All rights reserved. 7

Carriage Controls Tool Holder Lever Tool Holder Top Slide Hand Wheel Cross Slide Hand Wheel Longitudinal Travel Hand Wheel Threading Dial Half-Nut Lever Lead Screw Automatic Feed Lever Copyright © Texas Education Agency, 2017. All rights reserved. 8

Tailstock Controls Live Center Tailstock Off-Set Adjustment Tailstock Spindle Clamping Lever Tailstock Spindle Hand wheel Tailstock Locking Screw Copyright © Texas Education Agency, 2017. All rights reserved. 9

General Flexible Manufacturing Lab Safety Rules > Personal Protective Equipment (PPE) is required when working in the flexible manufacturing lab. > Keep the area around the machines clean and free of oil. > Always return tools and cutters to their proper storage area. > No hazardous behavior in the lab. Copyright © Texas Education Agency, 2017. All rights reserved. 10

Engine Lathe Safety Rules > The chuck or drive plate should be tightened on the spindle. > Move the tool bit far away from the material being mounted in the lathe. > Check for proper speed before starting the lathe. Copyright © Texas Education Agency, 2017. All rights reserved. 11

Engine Lathe Safety Rules > When setting the tool holder, place it on the left side so the carriage will not be hit by the chuck. > Clamp the cutter bit as close to the holder as possible to prevent breakage and chattering. > Stop the lathe before making any adjustments, measurements or cleaning the chips away. > After tightening the material in the chuck, remove the chuck key. Copyright © Texas Education Agency, 2017. All rights reserved. 12

Engine Lathe Safety Rules > Do not use your fingers to remove chips or touch the material. > Set the height of the tool bit on the centerline of you work. > Do not cut material all the way through when turning between centers. > When turning between centers, properly adjust the centers to support the material. Copyright © Texas Education Agency, 2017. All rights reserved. 13

Engine Lathe Safety Rules > When turning between centers make sure the tailstock is locked in place. > After setting the lathe, remove all tools from the machine. > Check the tool bit for defects and sharpness. > When filing on the lathe, file away from the chuck. > When sanding on the lathe do not wrap the paper around the material. This could get tangled in the lathe. Copyright © Texas Education Agency, 2017. All rights reserved. 14

Vertical Milling Machine The milling machine shown in this presentation is an 8 X 42 inch model. The basic controls are the same, but may be in different locations. Check the manual for the mill in the lab. Copyright © Texas Education Agency, 2017. All rights reserved. 15

Milling Machine Components Spindle Head Ram Column Table Saddle Knee Base Copyright © Texas Education Agency, 2017. All rights reserved. 16

Milling Machine Components > Spindle Head contains the spindle and motor. > Column is the major structural part with a base that holds all other parts. > Table is the place the work is mounted onto the mill. The table moves in the x-axis. Copyright © Texas Education Agency, 2017. All rights reserved. 17

Milling Machine Components > Saddle holds the table and moves in the Y-axis > Knee supports the saddle and table and moves up and down to position the work piece. Copyright © Texas Education Agency, 2017. All rights reserved. 18

Milling Machine Components > Ram holds the toolhead and allows it to move away from the column. > Base is the bottom of the support structure that holds and aligns the rest of the machine. Copyright © Texas Education Agency, 2017. All rights reserved. 19

Milling Machine Safety Rules 1. Work must be clamped securely in a vise or on the table while being machined. 2. Never clean the work area with a rag, especially when the mill is turning. 3. Power must be off before making any adjustments, changing the cutters or cleaning the machine. Copyright © Texas Education Agency, 2017. All rights reserved. 20

Milling Machine Safety Rules 4. Use the proper spindle speed, feed rate and depth of cut for the material being cut. 5. During setup make sure that table, holding device and the work piece clears the spindle and its support. 6. Cutters must be sharp and in good condition. 7. Do not leave the machine while it is in operation. 8. Do not leave any wrenches, materials or other tools on the tables. Copyright © Texas Education Agency, 2017. All rights reserved. 21

Milling Machine Safety Rules 9. Make sure that any onlookers are out of the safety area of the machine. 10. Remove all wrenches after tightening the cutter. Copyright © Texas Education Agency, 2017. All rights reserved. 22

2 3 Resources Lathe information • http: //engineering. ucdavis. edu/efl/LATHE. pdf • http: //tdserver 1. fnal. gov/tdweb/ms/Policies/ • http: //me. ucsb. edu/course_pages/me 12 s/safety_ handbook. pdf Copyright © Texas Education Agency, 2012. All rights reserved. Copyright © Texas Education Agency, 2017. All rights reserved. 23