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CNC Herringbone Gear Milling Center

Classification:

SN	Items	Unit	Technical parameters
SN	Items	Unit	SKXCR-2000/16	SKXCR-3000/20
1	Maximum modulus of processing(mm)	mm	30
2	Number of teeth		Unlimited/No limit
3	Helix/Helical angle	°	Unlimited/No limit
4	Size of herringbone tooth retraction groove		Unlimited/No limit
5	Maximum outer tooth tip circle diameter	mm	ø2000	ø3000
6	Minimum outer tooth root circle diameter	mm	ø200	ø800
7	Specification ofthespindle and handle of the rod cutter	mm	BT50*120
8	Maximum gear width	mm	700
9	Rated power of spindle motor	kW	30
10	Spindle speed	rpm	200-3500
11	Spindle radialrunout	μm	≤5
12	X-axis feed rate	mm/min	0-2200
13	X-axis shaft stroke	mm	1100
14	Z-axis feed rate	mm/min	0-3000
15	Z-axis shaft stroke	mm	800
16	Y-axis feed rate	mm/min	0-3500
17	Y-axisshaft stroke	mm	1100	1500
18	C-axis turn/rotary-table surface diameter	mm	ø1600	ø2000
19	C-axis turmV/rotary-table center-hole diameter	mm	ø400	ø600
20	C-axis turn/rotary-table bearing	kg	12000	20000
21	Operatingvoltage		380V±10%
22	Operating temperature	℃	0-40
23	Machine weight	kg	45000(Optional with rear column)	50000
24	Overall dimensions(lengthxwidth*height)	m	6.04.05.0(Optional with rear column)	7.05.85.0

Note：The above technical parameters are for selection and technical exchange only. The final machine tool technical parameters shall be subject to the technical agreement.

Traditional herringbone teeth usually use processes such as hobbing, finger/index milling, combing, and gear shaping. Due to the limitations of traditional machining equipment and tools, the machining efficiency is low and the flexibility is poor, making it unsuitable for special situations such as zero backlash and tooth profile compensation. The SKXCR series CNC herringbone gear milling center can meet the high-precision flexible machining of GB7-8 precision herringbone gears.

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Feature 1:Abundant functionality

1. Capable of machining zero backlash herringbone teeth.

2. Standard end milling cutter, no custom tool required.。

3. Equipped with arbitrary tooth shape and tooth direction modification functions.

4. It can achieve machining of irregular tooth surfaces, point line meshing, arc teeth, etc.

5. Specific shape of the gear face and tooth chamfer.

6. Capable of meeting the hard tooth surface finish milling.

7. The envelope machining accuracy of the rod cutter can reach GB7 level.

Feature 2：High Precision Turn/Rotary-Table

1. The double worm gear turn/ rotary-table can achieve zero clearance transmission, with a repeated positioning accuracy of 3 inches and a indexing accuracy of 6 inches.

2. The circumferential stiffness of the turn/rotary-table reaches 400N/μm, High dynamic accuracy.

3. The load-bearing stiffness and repeated positioning accuracy of the static pressure workbench/ table have been greatly improved, meeting the requirements of machining large and heavy-duty gears.

Feature 3：High Precision Feeding System

1. The combination of rolling guide rail and sliding guide rail not only satisfies the heavy-duty cutting of end mills, but also achieves high-speed and accurate positioning of end mills.

2. The Y-axis is supported by high-precision heavy-duty roller tracks.

Feature 4：Specialized Cam Software

1. Independently develop and master core algorithms.。

2. The operator interface is user-friendly, easy to operate, and only requires input of drawing parameters.

3. CAM has complete functions and simulation capabilities.

4. Integrated tooth profile modification and tooth orientation modification functions.

5. Auto generation of machining process reports.

Feature 5：Error Compensation

1. Improve single tooth pitch accuracy by 2-3 levels by optimizing the indexing algorithm.

2. Optimization of turn/rotary-table indexing method: evenly distributed indexing and symmetrical indexing.

3. Adopting equal residual cutting path planning has high efficiency and good accuracy.

4. The NC program comes with a 3D tool compensation function.

5. Integrate zero backlash groove chamfering, end face edge chamfering, and tooth direction edge chamfering algorithms.

SN	Items	Unit	Technical parameters
SN	Items	Unit	SKXCR-2000/16	SKXCR-3000/20
1	Maximum modulus of processing(mm)	mm	30
2	Number of teeth		Unlimited/No limit
3	Helix/Helical angle	°	Unlimited/No limit
4	Size of herringbone tooth retraction groove		Unlimited/No limit
5	Maximum outer tooth tip circle diameter	mm	ø2000	ø3000
6	Minimum outer tooth root circle diameter	mm	ø200	ø800
7	Specification ofthespindle and handle of the rod cutter	mm	BT50*120
8	Maximum gear width	mm	700
9	Rated power of spindle motor	kW	30
10	Spindle speed	rpm	200-3500
11	Spindle radialrunout	μm	≤5
12	X-axis feed rate	mm/min	0-2200
13	X-axis shaft stroke	mm	1100
14	Z-axis feed rate	mm/min	0-3000
15	Z-axis shaft stroke	mm	800
16	Y-axis feed rate	mm/min	0-3500
17	Y-axisshaft stroke	mm	1100	1500
18	C-axis turn/rotary-table surface diameter	mm	ø1600	ø2000
19	C-axis turmV/rotary-table center-hole diameter	mm	ø400	ø600
20	C-axis turn/rotary-table bearing	kg	12000	20000
21	Operatingvoltage		380V±10%
22	Operating temperature	℃	0-40
23	Machine weight	kg	45000(Optional with rear column)	50000
24	Overall dimensions(lengthxwidth*height)	m	6.04.05.0(Optional with rear column)	7.05.85.0

Note：The above technical parameters are for selection and technical exchange only. The final machine tool technical parameters shall be subject to the technical agreement.

Traditional herringbone teeth usually use processes such as hobbing, finger/index milling, combing, and gear shaping. Due to the limitations of traditional machining equipment and tools, the machining efficiency is low and the flexibility is poor, making it unsuitable for special situations such as zero backlash and tooth profile compensation. The SKXCR series CNC herringbone gear milling center can meet the high-precision flexible machining of GB7-8 precision herringbone gears.