CNC Knowledge: Do you really understand the knowledge of “Deep Hole Diamond”?

Characteristics of deep hole exercises:

1. The knife rod is limited by the diameter of the pores, the small diameter, the long length, causing poor rigidity, low resistance and vibrations, ripples and effilating during cutting, and straight lines and roughness of the surface of the deep holes affect the deep pores.

2. During drilling and expansion, the cooling lubrication liquid is difficult to enter the cutting zone without using a special device, which reduces the sustainability of the tool, and it is also difficult to duplicate.

3. During the process of treatment of deep holes, you cannot directly observe the knife cut 具, but you can only judge the sound, the dandruff, the hand vibrations and the room temperature, the counter of Observation (oil counter and counter) with work experience, is the cutting process normal?

4. The deduction is difficult to eliminate the length and shape of the dandruff and control dandruff with reliable means to facilitate fluid exclusion and prevent crumbs from blocking dandruff.

5. In order to ensure that the deep holes are carried out successfully and have obtained the quality of treatment required during the processing process, the inner conduit (exterior), guidance and tool support device and The high -pressure cooling lubrication device should be added.

Generally, more than 5 times the pores are called deep holes. Out of smaller fragments, while the cooling liquid is easy to enter.

The exercise grinding method can adopt a relatively simple grinding method:

1. The angle of the drilling blade increases to 130-140 degrees to increase the thickness of the dandruff and change the direction of the dumping of dandruff (the direction of the dumping of dandruff is perpendicular to the mouth of the blade)

2. Repair the horizontal blade to reduce the cutting blade of the axis and cut the blade at the same time to generate a folding angle in the heart of drilling to facilitate dandruff.

4. Pour 1 mm 45 degrees angle in the outer corner of the blade to reduce wear and increase softness.

5. The drilling speed is slightly lower.

6. The cooling liquid nozzle must enter the cutting area facing the hole in the hole.

Current problems and modification of the solution

Rough surface

1. Liaison of dandruff: Reduce the cutting speed; Avoid collapse;

2. Instead of coaxiality: adjust the coaxiality of the main axis of the machine tool and the drilling cover; Use the appropriate diameter of the diamond cover.

3. The cutting speed is too low.

4. The geometric shape of the tool is inappropriate: modify the shape of the geometric angle of the cutting blade and the guide block

The hole is a form of speaker

The coaxiality is not good: adjust the coaxiality of the main axis of the machine, the drilling cover and the support set;

Piercer

1. The dandruff is not good, the dandruff cannot be discharged: the size of the dandruff slit is modified to avoid being too long and too superficial; fluid;

2. Excessive, too small or unequal amount: use the appropriate quantity of cut.

3. Excessive wear of exercises: regularly replace drills to avoid excessive wear.

4. The cutting solution is not suitable: the appropriate cutting fluid is used and the filtration is improved.

Basse drilling life

1. The cutting speed is too high or too low.

2. The exercises are not suitable: replace the material of the tool; Modify the position and shape of the guide block.

3. The cutting solution is not suitable: replacing the cutting fluid with high pressure;

other

The dandruff in a band: the geometric shape of the groove of the broken dandruff is inappropriate;

The deduction is too small: the groove of the broken dandruff is too short or too deep;

Excessive posulated: too long or too shallow;