Precision Cnc Milling Machine

 

 

 

 

 

Source factory

 

Source factory

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Our products are all directly supplied by the factory, manufactured by the original factory, and the quality is guaranteed

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Every process has been strictly checked, the quality is reliable

360-day product warranty, life-long maintenance, let you worry-free after-sales

 

Machine parameter

 

	Parameter	Unit	V-1165
●	TRAVEL
	X-axis travel	mm	1100
	Y axis travel	mm	650
	Z-axis travel	mm	600
	Spindle nose to work surface	mm	130-730
	Spindle center to column guide	mm	665
●	work table
	Table Dimensions (L x W)	mm	1200*660
	T-slot (number-size*spacing)	mm	5*18X100
	maximum load	Kg	710
L	Spindle
	Spindle speed	rpm	10000
	Spindle motor power	kw	11/15kw
	Spindle taper hole (model/installation size)		BT40（150）
●	feed
	G00 rapid traverse (X axis)	m/min	36
	G00 rapid traverse (Y axis)	m/min	36
	G00 rapid traverse (Z axis)	m/min	36
	G01 Cutting feed	m/min	12/12/12
●	machine precision
	positioning accuracy	mm	0.005/300
	Repeatability	mm	0.003/300
●	other
	Floor space (length)	mm	2800
	(width)	mm	2450
	Machine height (height)	mm	2500
	machine weight	Kg	5800
	vacuum packaging	/	YES
	Fixed wooden frame	/	YES

 

 

Precision cnc milling machine's subtleties show its strength, demanding details, details determine success or failure

Well-known CNC system

CAD can be imported to realize programming-free operation and CNC numerical control system, easy to operate, and the electric drive is driven by a series of high-precision servo motors

 

Overall structure
The machine tool is fixed by column, and the structure of cross sliding table is movable. The X, Y, and Z axes adopt linear rolling guide rails, and the whole machine has high rigidity, high stability and high reliability
Large flow, fully enclosed protection, beautiful appearance, easy operation and maintenance.

 

 Headstock
 
Adopt high-speed spindle unit spindle taper hole BT40 specification with center air blowing function

 

Tool magazine
The tool magazine adopts the disc type tool magazine with reliable quality and stable performance

 

drive
The three-axis motor and the high-precision ball screw adopt the direct drive mode to improve the transmission rigidity and positioning accuracy. The three linear coordinate axes all adopt linear rolling guide rails, the vibration of the machine tool is small when feeding at high speed, and there is no crawling when feeding at low speed

 

 

wide range of application

 

 

Mould manufacturing industry
Automobile industry
aerospace industry
Consumer Electronics Industry
Education industry
5G smart

 

Common problems and improvement methods of Precision cnc milling machine

 

Starting from the actual production, this article summarizes the common problems and improvement methods in the CNC machining process, and how to choose the three important factors of speed, feed rate and cutting depth in different application fields, for your reference.

01
workpiece gouging

reason:
1) Knives are snapped, the knives are not strong enough, too long or too small, causing the knives to snap.
2) Improper operation by the operator.
3) The cutting allowance is uneven (for example: leave 0.5 for the side of the curved surface and 0.15 for the bottom)
4) Improper cutting parameters (such as: too large tolerance, too fast SF setting, etc.)

improve:
1) The principle of using a knife: it can be big or small, short or long.
2) Add the corner cleaning program, and keep the margin as even as possible (leave the same margin on the side and bottom).
3) Reasonably adjust the cutting parameters, and round the corners with large margins.
4) Using the SF function of the machine tool, the operator can fine-tune the speed to achieve the best cutting effect of the machine tool.

02
split problem

reason:
1) Inaccurate when the operator manually operates.
2) There are burrs around the mold.
3) The center rod is magnetic.
4) The four sides of the mold are not vertical.

improve:
1) Manual operation should be carefully checked repeatedly, and the points should be at the same point and height as much as possible.
2) Deburr around the mold with a whetstone or a file, wipe it clean with a rag, and finally confirm it by hand.
3) Demagnetize the centering rod before centering the mold (ceramic centering rod or others can be used).
4) Calibrate the meter to check whether the four sides of the mold are vertical (if the verticality error is large, you need to review the plan with the fitter).

03
Tool setting problem

reason:
1) Inaccurate when the operator manually operates.
2) The tool is clamped incorrectly.
3) The blade on the flying knife is wrong (the flying knife itself has a certain error).
4) There is an error between the R knife, the flat knife and the flying knife.

improve:
1) Manual operation should be carefully checked repeatedly, and the knife should be set at the same point as possible.
2) When the tool is clamped, blow it off with an air gun or wipe it off with a rag.
3) When the upper blade of the flying knife needs to measure the tool shaft and the smooth bottom surface, one blade can be used.
4) A separate tool setting program can avoid the error between R knife, flat knife and flying knife.

04
Collider - Programming

reason:
1) The safety height is not enough or not set (the tool or collet collides with the workpiece during rapid feed G00).
2) The tool on the program list and the actual program tool are wrongly written.
3) The tool length (blade length) on the program list and the actual processing depth are incorrectly written.
4) The depth Z-axis reading and the actual Z-axis reading on the program sheet are incorrectly written.
5) The coordinates are set incorrectly during programming.

improve:
1) Accurate measurement of the height of the workpiece also ensures that the safety height is above the workpiece.
2) The tool on the program sheet should be consistent with the actual program tool (try to use the automatic program sheet or use the picture to generate the program sheet).
3) Measure the actual processing depth on the workpiece, write down the length of the tool and the length of the blade clearly on the program sheet (generally, the length of the tool holder is 2-3MM higher than the workpiece, and the length of the blade is 0.5-1.0MM).
4) Take the actual Z-axis number on the workpiece, and write it clearly on the program sheet. (This operation is generally written manually and needs to be checked repeatedly).

05
collider-operator

reason:
1) Depth Z axis tool setting error.
2) The number of hits in the division and the number of operations are wrong (such as: single-side fetching has no feed radius, etc.).
3) Use the wrong knife (for example: D4 knife is processed with D10 knife).
4) The program goes wrong (for example: A7.NC goes to A9.NC).
5) The hand wheel is turned in the wrong direction during manual operation.
6) Press the wrong direction during manual rapid feed (for example: -X press +X).

improve:
1) For depth Z-axis tool setting, you must pay attention to where the tool is set. (bottom, top, analysis, etc.).
2) Repeated checks should be made after the number of hits and operations are completed.
3) When clamping the tool, it must be checked repeatedly against the program list and the program before loading.
4) The program should go one by one in order.
5) When using manual operation, the operator himself must strengthen the operation proficiency of the machine tool.
6) When moving quickly manually, the Z axis can be raised above the workpiece before moving.

06
surface precision

reason:
1) The cutting parameters are unreasonable, and the curved surface of the workpiece is rough.
2) The knife edge is not sharp.
3) The tool clamping is too long, and the cutting edge is too long.
4) Chip removal, air blowing, and oil flushing are not good.
5) Program the way of cutting (you can try to consider down milling).
6) The workpiece has burrs.

improve:
1) Cutting parameters, tolerances, margins, and speed feed settings should be reasonable.
2) The tool requires the operator to check and replace it irregularly.
3) When clamping the tool, the operator is required to keep the clamp as short as possible, and the blade should not be too long.
4) For the downcutting of flat knife, R knife and round nose knife, the setting of speed and feed should be reasonable.
5) The workpiece has burrs: it is directly related to our machine tool, cutting tool, and the way of cutting tool, so we need to understand the performance of the machine tool and make up the tool on the edge with burrs.

07
Chipping

1) Feed too fast

--Slow down to a suitable feed rate.

2) Feed too fast at the beginning of cutting
--Slow down the feedrate at the beginning of cutting.

3) Clamping loose (knife)
-- Clamp.

4) Clamping loose (workpiece)
-- Clamp.

5) Insufficient rigidity (knife)
--Use the shortest knife allowed, clamp the shank a little deeper, and try climb milling in addition.

6) The cutting edge of the tool is too sharp
--Change the fragile cutting edge angle, one edge.

7) Insufficient rigidity of machine tool and tool holder
-- Use a rigid machine tool and tool holder.

08
wear and tear

1) The speed of the machine is too fast
--Slow down and add enough coolant.

2) hardened material
--Use high-grade cutting tools and tool materials to increase surface treatment methods.

3) Chip adhesion
--Change the feed rate, chip size or clean the chips with cooling oil or air gun.

4) Improper feed rate (too low)
--Increase the feed rate and try climb milling.

5) The cutting angle is not suitable
--Change to appropriate cutting angle.

6) The primary relief angle of the tool is too small
--Change to a larger relief angle.

09
destroy

1) Feed too fast
--Slow down the feed rate.

2) The amount of cutting is too large
-- Use a smaller amount of cutting per edge.

3) The blade length and overall length are too large
--Clamp the shank a bit deeper, use a short knife, and try down milling.

4) too much wear
--Regrinding at the initial stage.

10
Vibration

1) Feed and cutting speed is too fast
--Correct feed and cutting speed

2) Insufficient rigidity (machine tool and tool holder)
-- Use a better machine tool and tool holder or change the cutting conditions

3) The rear angle is too large
--Change to a smaller relief angle, process the margin (use oil stone to sharpen the blade once)

4) Clamp loose
--Clamp the workpiece

5) Consider the speed and feed rate

The relationship among the three factors of speed, feed rate and depth of cut is the most important factor in determining the cutting effect. Improper feed rate and speed often lead to reduced production, poor workpiece quality, and large tool damage.

Use the low speed range for:
High hardness material
capricious material
Difficult-to-cut materials
heavy cutting
minimal tool wear
longest tool life

Use the high speed range for
soft material
good surface quality
Smaller tool outer diameter
light cutting
Brittle workpieces
manual operation
Maximum processing efficiency
non-metallic material

Use high feed rates for
Heavy and rough cutting
steel structure
easy processing material
roughing tool
Plane cutting
low tensile strength material
Coarse Tooth Milling Cutter

Use low feed rates for
light machining, fine cutting
Brittle structure
Difficult to machine materials
small knife
Deep groove processing
high tensile strength material
Finishing tool

 

 

 

 

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