It is a comprehensive part of a comprehensive part drawing. For engineers, the difficulty of this part is the processing of eccentric parts, the preparation of macro programs and the analysis of machining processes. This article focuses on the analysis of eccentric parts and macro programs based on personal processing experience!
1.Eccentric piece
It can be seen from the figure that the eccentricity e=2mm is usually on the three-jaw chuck in the school. A pre-calculated pad with a curvature similar to the claw curvature is added to a single claw. Approximate calculation formula: pad thickness X=1.5*e, the thickness of the gasket is 3mm. If more precise, you need to add correction coefficient K, namely: X=1.5*e + k. Generally speaking, it is processed first. Measure the eccentricity and adjust the thickness of the gasket. Finally, it is a technical activity. It needs to be crossed and the dial gauge is corrected to ensure the correctness of the workpiece installation. It is allowed to have an error of about 2 wires. As the saying goes, memory produces memory. For the correct installation of eccentric parts, you need to practice more! There is nothing left, normal turning can be! About the four claws, fixtures, etc., the principle is similar, give one another!
2.Parabola
This parabola is also offset by a value of 10.84 in the X direction. The rest can be compiled normally. I have produced a parabolic simulation processing video in the previous stage. I will not go into details here.
The main procedures are as follows:
….
#1=0
#2=-5
WHILE[#1GE#2]DO1
#3=SQRT[-#1*2]+10.84
G01X[2*[#3]]Z[#1]
#1=#1-0.1
END1
G01Z-10
…..
3.Oval
This ellipse is also offset by a center coordinate. You only need to add the offset coordinate XZ. You can make a two-stage ellipse processing video and an article in the previous stage.
#5=-47.159
#6=-87.355
WHILE[#5GE#6]DO2
#7=#5+64.318
#8=-24*SQRT[1-#7*#7/[30*30]]
G01X[2*[-#8+39.373]]Z[#5]
#5=#5-1
END2
Link to this article： Share a classic CNC machining drawing for shaft
Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting:https://www.cncmachiningptj.com/，thanks！
PTJ® provides a full range of Custom Precision cnc machining china services.ISO 9001:2015 &AS-9100 certified. 3, 4 and 5-axis rapid precision cnc machining services including milling, turning to customer specifications,Capable of metal & plastic machined parts with +/-0.005 mm tolerance.Secondary services include CNC and conventional grinding, drilling,die casting,sheet metal and stamping.Providing prototypes, full production runs, technical support and full inspection.Serves the automotive, aerospace, Mold&fixture,led lighting,medical,bicycle, and consumer electronics industries. On-time delivery.Tell us a little about your project’s budget and expected delivery time. We will strategize with you to provide the most cost-effective services to help you reach your target,Welcome to Contact us ( [email protected] ) directly for your new project.
Link to this article：Share a classic CNC machining drawing for shaft
Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting.：Casting Wiki，THANKS！^^