I do CNC and want a comprehensive threading table. English .

Metric thread pitch (pitch).

Thread Size Bottom Hole Diameter Minimum Bottom Hole Maximum Bottom Hole Thread Size Bottom Hole Diameter Minimum Bottom Hole Maximum Bottom Hole Thread Size Bottom Hole Diameter Minimum Bottom Hole Maximum Bottom Hole.

4h 5h 6h 4h 5h 6h 4h 5h 6hm1* m8* m25*3m1* m8*1 m25*2m8* m25*

m8* m25*1

m9* m26*3

m9*1 m26*2

m9* m26*

m10* m27*3

m10* m27*2

m10*1 m27*

m10* m27*1

m10* m28*3

0 m11* m28*2

m11*1 m28*

m11* m28*1

m2* m11* m30*

m2* m12* m30*3m12* m30*2

m12* m30*

m12*1 m30*1

m12* m32*

m12* m32*3

m14*2 m32*2

m14* m32*

m14*1 m33*

m14* m33*3

m3* m14* m33*2m3* m16*2 m33*m16* m35*

m16*1 m35*

m4* m18* m36*4m4* m18*2 m36*3m18* m36*2

m18*1 m36*

m5* m20* m40*4

m5* m20*2 m42*m5* m20* m45*m20*1 m48*5

m22* m50*5

m22*2 m56*

m6* m22* m60*m6* m22*1 m70*6m6* m24*3 m80*6m7* m24*2 m85*6m7* m24* m90*6m7* m24*1 Note: Yellow is the standard thread pitch.

Go to the shared Internet and look for it, and that's where I got it. ([Standard Manual of Metric Inch Connection Threads].]Jiang Fan. Scanned version).

One: T0101: T is the command to adjust the knife, 0101 is the No. 1 knife, No. 1 knife is supplemented. The overall meaning is to call the No. 1 knife and use the No. 1 knife to make up.

G96 S500 M3: Constant linear speed, that is, the different diameters of the car, the system will automatically calculate the spindle speed according to the size of the diameter. s500 ：

If it's G96, the linear speed is 500m per minute (but I personally think it shouldn't be G96 here because it should be G97 constant speed, because the linear speed of 500 is too scary.) So personally, I think it should be a constant speed of 500 revolutions per minute). M3 is the abbreviation of M03, which means that the spindle is rotating forward.

Together, it means that the spindle rotates forward at a speed of 500 per minute.

2: g0 x18 z3: g0 indicates that the fast point is located to the coordinates of x18 z3.

We call the knife point, which is also the safety point. Because the speed of G0 is very fast, it is definitely not possible to touch the workpiece directly with GO, so use GO to quickly move to the position of the workpiece attachment. (The outer diameter of the thread of M16 is 16, X is set to 18 is to leave a safety margin of 2mm in the diameter direction between the tool and the workpiece, and the zero point in the Z direction of this program should be on the end face of the part, and Z3 is to leave a safety distance of 3mm between the tool and the workpiece in the Z direction).

Three: When turning threads, due to the large contact area, it is easy to punch knives and vibration marks, so many knives will be divided into turning when turning threads. This means that the first knife car has reached this position, but this is not absolute, not necessary.

If your tool is better, the workpiece material is softer, you can make more cars, and vice versa. (It takes some experience to determine this).

Four: G0 Z3: This program is useless here, because G92 threading will return to the starting point every cycle, which is X18 Z3 just now, so this G0 Z3 is nonsense.

Five: GO X100 Z00Quickly locate the safety point to the X100 Z100. (The specific distance of the retreat is not affected by the tool table change and clamping the workpiece, and it will be a waste of time if the retreat is too far.)

Six: M5: This is the abbreviation of M05 which means that the spindle stops.

Seven: T0100: No. 1 knife supplement cancelled.

Eight: The program stops (that is, the program is finished).

The outer diameter car to 8The last cut of the thread is 48-( 1,0825 is a constant; Hope it can help you.

Side Story: First of all, let's talk about the meaning of the names of the threads, which means that the nominal diameter of the thread, that is, the outer diameter is 48, and the pitch is 2, and we program only the diameter and pitch, and the tooth height, and this program can be programmed like g76.

g76p012060 q200

z...p1300 f2.p is the tooth height and q is the amount of the first knife to eat on the back.

Very vegetable, indeed! Processed with G92,.

g92 z-? f2

x46.I'm probably processing like this, and you can take a few more knives for the parameters

Circular, non-circular, there's it.

To do this, you must first know the number of teeth corresponding to each callout (i.e. how many teeth there are in this thread) in order to calculate the metric pitch. e.g. g1 16quot; ,g1/8quot;, the number of teeth corresponding to these two is 28 teeth.

g1/4quot;,g3/8quot;The corresponding is 19 teeth. g1/2quot;,g3/4quot;This corresponds to 14 teeth. g1quot;or greater than this are all 11 teeth.

You need to know all of this. Then it's a matter of converting it to metric pitch. Divide one inch (one inch by millimeters) and the number of teeth to get the metric pitch.

As g1quot; and divide by 11.

i+ teeth per inch.

CNC lathe threads are divided into: imperial and metric.

Metric: F+ pitch. Imperial: i+ teeth per inch.

It is also possible to use the method of F plus pitch to turn the inch thread.

Take a one-inch pipe thread as an example. You can use i11 for representation, or you can use representation.

Because the number of teeth per inch of the G1 thread is 11Use.

Similarly, 3/4 can be expressed as or i14