Economic Boring and Milling Machining Center CNC Machine

• Customization: Available
• After-sales Service: Product Package After-Sales Service
• Warranty: The Warranty Period Is 12 Months or 18 Months Upon
• Model NO.: YZZX3508
• Type: Planer type Milling Machine
• Object: Hardware
• Structure: Bed type
• Milling Cutter Type: Cylindrical Milling Cutter
• Milling Cutter Structure: Indexable Type
• Controlling Mode: CNC
• Automatic Grade: Automatic
• Precision: High Precision
• Certification: GS, CE, RoHS, ISO 9001
• Condition: New
• Precision Spindle: Taiwan Chunjian
• Spindle Type: Belt Drive Type
• Table Size: 7000×1000mm
• Spindle Taper: Bt50 Taper Bore
• Transport Package: Strong Packaging to Prevent Rain, Snow, Moisture,
• Trademark: JSYZSK1
• Origin: China
• HS Code: 84594100
• Production Capacity: 2000 Sets Per Year

Product Description

1. Description and use of equipment
This equipment is mainly used for the efficient processing of boring and milling of double-sided holes of booms, slender profiles or structural parts such as one arm, two arm, three section arm and basic arm. The two spindles can be machined on both sides at the same time or independently. The machine tool processing process is digitally controlled, and the operation is very convenient. It can realize automation, high precision, multi-variety, mass production.

YZZX7010 boom double-sided boring machine is a new type of efficient and intelligent processing equipment independently developed by our company. The equipment has good system rigidity and high precision, high life, high reliability, high positioning accuracy, stable operation and low energy consumption, which can meet the needs of efficient production of enterprises. Widely used in engineering machinery, steel structure, bridge, pressure vessel, chemical environmental protection, shipbuilding and other industries.
Second, the characteristics of the equipment
This equipment is a workbench mobile structure, mainly composed of bed base, mobile workbench, left and right moving column, CNC horizontal boring and milling power head, cooling device, hydraulic system, centralized lubrication system, chip removal device, electrical system, CNC system, disc tool magazine, etc.
The bed base, workbench, column, headstock and other large parts are made of high-strength cast iron HT300 material cast by German resin sand production line, which is treated with artificial aging heat treatment and annealing to eliminate internal stress. Using finite element analysis, the static and dynamic performance of the machine tool is effectively predicted and optimized, so that the performance of the machine tool is effectively guaranteed, and it has a high performance-price ratio.
1. Bed base:
The bed base adopts special rib plate arrangement, and the structure is compact, so that the machine tool has high rigidity. After artificial aging heat treatment, annealing stress removal
treatment, eliminate internal stress, dynamic and static rigidity is good. Two linear roller guide pairs with ultra-high bearing capacity and precision heavy-duty ball screw pairs are arranged on the plane of the bed, and the drive is driven by servo motors through precision planetary reducers. It is used to do X-direction motion feed in the table. The lead screw is pre-stretched during installation, eliminating the gap and high transmission accuracy. Adjustable bolts are distributed on the underside of the bed base to easily adjust the level of the bed worktop.

Heavy-duty linear guide rails Precision heavy-duty ball screws 

2.Mobile Workbench:

The table guide rail pair adopts heavy-duty linear roller guide pair, which has small changes in dynamic and static friction, high sensitivity of the table, small high-speed vibration, no crawling at low speed, high positioning accuracy and excellent servo drive performance; At the same time, the bearing capacity is large, the cutting vibration resistance is good, which can improve the characteristics of the machine tool, improve the accuracy and precision stability of the machine tool, and extend the service life of the machine tool.  Several T-grooves are machined on the work surface, which can be used to install special fixtures or directly clamp the workpiece.
The workbench is equipped with workpiece positioning clamping tooling, which is composed of longitudinal positioning pressing device, lateral medium pressing device, auxiliary support, etc. As shown in the image above:
When working, the workpiece falls on the tooling, and the longitudinal positioning is backed by the mountain, the lateral centering device pushes the workpiece laterally, and the lateral positioning is close to the mountain, to realize the positioning of the workpiece, and the hydraulic clamping cylinder presses the workpiece to realize the automatic clamping of the workpiece. When machining a long workpiece, an auxiliary support device can be used to carry out the lower auxiliary support of the workpiece to avoid the lower winding deformation of the workpiece.

3. Move the column left and right
The left and right moving column adopts thick-walled multi-ribbed structure, compact structure, so that the machine tool has high rigidity, and is annealed to stress relieve. The mobile column is installed on the slide table, and the imported high bearing capacity linear rolling guide pair and precision ball screw pair are arranged horizontally on the slide, and the drive adopts servo motor drive to make the moving column do lateral feed movement (Y axis), and the horizontal power head is installed in the middle of the front of the column with high rigidity. On the front side of the column, two linear rolling guide pairs with ultra-high bearing capacity are installed. And the precision ball screw pair and AC servo motor are installed above, so that the spindle power box moves vertically up and down along the column (Z axis). The lead screw is pre-stretched during installation, eliminating the gap and high transmission accuracy.
4. Horizontal CNC slide table
After the horizontal CNC slide table is connected by the servo motor through the precision planetary reducer and high rigidity coupling, it drives the heavy-duty ball screw sub-drive boring and milling power head to realize the power head fast forward, work advance, fast rewind, stop and other actions. It has the functions of automatic chip breaking, chip removal and suspension.
5. Horizontal boring and milling of power heads
level Milling powerHead adoptionThe special servo motor for the spindle drives the special precision spindle to realize the stepless speed change of servo, and the feed is driven by the servo motor and the ball screw. The X and Y axes can be linked, and semi-closed-loop control is adopted, which can realize the function of linear and circular interpolation. After setting the distance, the tool fast-forwards to the workpiece and automatically switches to work. When the finished part is processed, it can be automatically switched to a quick retreat to realize the automatic feed cycle. Work inGive speedSet by numerical control. level The milling power head spindle isBT50Cone bore with butterfly springAutomatic broaching mechanism, the headstock is installedLoose knife cylinder(gas-liquid pressurization) is convenient to change the knife.
Boring and milling power head spindle adopts Taiwan Jianchun brand spindle, spindle bearing adopts imported high-precision bearing, so that the spindle has high precision, high load and low temperature rise, not only can withstand large power and high torque cutting, but also has high spindle accuracy and life. Grease seal lubrication and labyrinth sealing are used to realize spindle lubrication and sealing.
The spindle gear gearbox adopts a two-speed gearbox to achieve a large transmission range and torque, and realizes high and low two-speed shifting through automatic gear shifting, and stepless speed regulation in each gear. The shift mechanism has the ability to transmit smoothly, with low noise, resistance to shock loads and very high transmission rigidity.
6. Cooling system
The constant temperature cooling system can effectively cool the spindle system and gear gearbox to ensure the accuracy and stability of the main movement of the machine tool;
The tool cooling system, that is, the cutting blowing device, can take away the heat generated by the machining process in time.
7. Automatic lubrication device and protective device
This machine tool is equipped with an automatic lubrication device, which can automatically lubricate the motion pairs such as guide rails and lead screws. Regularly inject lubricating oil into the lubrication points such as linear guide rail sub-slider, lead screw sub-wire mother and rolling bearings of each component to provide the most complete and reliable lubrication, eliminating cumbersome manual operations and improving the service life of parts everywhere. The lubrication pump station and components adopt well-known high-quality products in China. The fixed automatic lubrication device has the functions of oil circuit blockage alarm, oil shortage alarm and oil shortage preload shutdown.

The X, Y and Z axes of the machine are equipped with dust shields to prevent cutting fluid splashes into the machine and protect the guide rails and ball screws from wear and corrosion.
8. Hydraulic system
The machine is equipped with a hydraulic system to maintain the dynamic balance of the headstock and the alignment and clamping of the workpiece. The hydraulic interface is in the form of a quick coupling. The system adopts integrated installation to ensure the reliability of the whole machine movement and convenient maintenance.
9. Chip removal device

The iron filings in the processing area of the table can be transported to the iron chip lifting device at the end of the bed by the screw chip conveyors on both sides of the bed, and then transported to the scrap trolley by the chain chip lifting device at the end. Iron filings are easy and quick to clean. The chip conveyor is cast in one way with the bed.
10. Tool magazine
This machine is equipped with a disc tool magazine with a capacity of 24 tools, which are used for automatic tool change of 2 power heads. Fast tool changes are possible. The tool changer has good stability, smooth and noiseless operation, and short tool change times.
11. Electrical system
The electrical system conforms to ISO national standards, CNC system control, independent electrical cabinet, reliable sealing of electric cabinet, industrial cooling air conditioning dust and dehumidification, maintain constant temperature of the electric cabinet, and ensure the safe operation of the machine tool; Electrical components are imported brands; The working area of the machine tool is equipped with lighting facilities, which is convenient for the operator to observe and operate at night; The machine tool is equipped with three-color lamp, which prompts three kinds of information: program operation, work cycle completion and fault alarm. The machine tool is equipped with an electronic pulse handwheel, which is convenient for all-round operation; The logic control of the machine tool adopts the built-in PLC control of the system, which can detect and alarm faults, and the alarm interface is fully Chinese.
12. Full digital numerical control system control
The numerical control system of this machine tool adopts Siemens 828D system, and the numerical control operation table is installed on the column, which is convenient to operate. Centralized operation control box and handheld unit with Ethernet interface and LCD screen. With data acquisition function. In order to facilitate programming, storage, display and communication, the operation interface has functions such as man-machine dialogue, error compensation, automatic alarm, fault self-diagnosis and processing program rehearsal.
Support network communication and data interaction. The adopted control system supports industrial Ethernet communication protocol, supports standard network communication protocol OPC-UA, etc. There is an interface for automated production lines and MES communication.
13. The machine tool is used under normal conditions
Power supply: three-phase AC380V±10%, 50Hz±1
Ambient temperature: -5°~45°
Working environment humidity: ≤95%. No condensation
Air supply pressure: ≥0.5Mpa
14. Machine tool accuracy implementation standard
(1) GB15760-2004 "General Technical Document for Safety Protection of Metal Cutting Machine Tools"
(2), GB/T5226.1-2019 "Mechanical and Electrical Safety Mechanical Electrical Equipment Part 1: General Technical Conditions" (3), GB/T17421.5-20 15 "General Principles for Machine Tool Inspection Part 5: Determination of Noise Emission"
(4), GB/T25376-2010 "General technical conditions for metal cutting machine tools for machining parts"
(5) GB/T23570-2009 "General Technical Conditions for Weldments for Metal Cutting Machine Tools"  
(6), GB/T25373-2010 "General technical conditions for assembly of metal cutting machine tools"
3. Equipment parameters

Machine tool type	horizontal table mobile CNC double-sided boring special machine tool
Table size (length × width)	3500×800mm
The table bears a load	8T
Type of boring and milling power head	Sliding table servo control power head
Horizontal boring milling power head Quantity	2 pcs
Spindle type	Belt drive type
Precision spindle	Taiwan Jianchun
Spindle taper	BT50 taper bore
Spindle motor power	2×18.5KW
Spindle speed	30-6000r/min
Spindle face and side runout	≤0.02 mm
The maximum output torque of the spindle	800Nm
Spindle cooling method	Air cooling

5. Servo motor power
  X-axis servo motor power 3.1KW
  Y-axis servo motor power 2×3.1KW
  Z-axis servo motor power 2×3.1KW
6. Itinerary
 X-axis (table longitudinal movement)                                       5000mm
 Y-axis (column lateral movement)                                       1200mm
 Z-axis (vertical movement of spindle up and down)                                     1250mm
 The distance between the center of the spindle and the table                               is 200~1450mm
7. Feed speed
Fast feed speed (X/Y/Z) 8000mm/min
Cutting feed speed (X/Y/Z) 2000mm/min
8. Precision wear-resistant ball screw (X/Y/Z) φ80/φ63/φ63mm
9. Number of CNC axes 5+2
  CNC system German Siemens 828D
10. Machine tool accuracy
  Positioning accuracy                                               0.04mm
  Repeatability                                                0.02mm
  Minimum resolution                                               0.001mm
11. Disc tool magazine
Number of tool magazines: 2
  Disc Knife Magazine Taiwan                                                Shengjie
Tool magazine capacity 24 pieces
Maximum tool weight                                                25kg
Maximum tool length                                              400mm
Maximum tool diameter (full tool state) φ120mm
Maximum outer diameter of the tool (adjacent to empty tool state) φ250mm
Shank size                                                    BT50
Pull nail form                                            JIS MAS BT50
Tool change time (T-T)                                                10s
Tool selection method:  manipulator tool selection
Fourth, the main purchased parts configuration of the machine tool
1. Rolling linear guide pair Taiwan HIWIN/South process
2. Ball screw Taiwan HIWIN/South craft
3. Servo motor, drive Siemens Germany
4. Spindle motor Siemens Germany
5. Control system                                            Siemens Germany
6. Main electrical components Schneider/Omron
7. Lead screw bearings NSK Japan
8. Chip removal system Yantai Yufeng / Yixin
9. Spindle timing belt American Gates
10. Precision spindle Taiwan Jianchun
11. Lubrication system American Bechil
12. Disc Knife Magazine                                               Taiwan Shengjie
13. Electric cabinet air conditioner Baoji Lebo/Rico
14. Hydraulic valve oil research
15. Spindle gearbox Germany ZF/Taiwan GTP
Note: If the supplier of the purchased parts fails to deliver in time within the delivery period, the purchased parts can be replaced by the same brand!
5. Randomly provided technical documents
1. 1 copy of product inspection certificate
2. Chinese 1 copy of instruction manual (mechanical, hydraulic, electrical                          ).
3. 1 copy of the basic diagram
4. 1 copy of numerical control system programming manual
5. 1 copy of CNC system installation manual
6. 1 copy of CNC system operation manual
7. 1 copy of CNC system error troubleshooting manual
8. AC servo motor drive instruction manual 1 copy
9. Packing list 1 copy
6. Acceptance, installation and after-sales
1. Acceptance
Acceptance criteria: The acceptance shall be carried out by the buyer and seller in accordance with the contract, the terms of the technical agreement and the current national standards. Acceptance method: Divided into two times. The first time the goods are manufactured, they are accepted by the seller and shipped as qualified. The second time, after the installation of the goods, the buyer and seller jointly carry out trial operation and final acceptance, and the buyer and seller sign the acceptance report, and the acceptance report takes effect after being signed by both parties. If the final acceptance of the equipment is not signed and confirmed by both parties, Party A shall not start and use it, otherwise it will be deemed to be qualified for final acceptance.
2. Training technology, service and warranty
The boom double-sided boring machine will provide one year for the mechanical part and one year for the electrical part (including the control system) from the date of acceptance and delivery. The buyer operates and uses according to the instructions for use and training provided by the seller, and during the warranty period, if it is a quality problem caused by manufacturing, installation and other reasons, the seller repairs the equipment free of charge in the shortest time and restores the normal use of the equipment. If the failure of the equipment is caused solely by improper use by the buyer, the seller is obliged to repair the equipment in the shortest possible time and may charge the buyer the cost at its discretion.
The Seller conducts training for the Buyer's operation and maintenance personnel to ensure that the boom double-sided boring machine can operate properly and be properly maintained. During the training, experienced technicians will be assigned to give technical guidance, responsible for explaining the technical problems related to the boom double-sided boring machine, so that the trainees can understand the operating  principle  of the boom double-sided boring machine and master it  The technical performance of the boom double-sided boring machine and the methods and technologies of operation, repair, maintenance, testing and debugging.
7. Packaging and transportation
1. The equipment components supplied by the seller, except for special parts, are carried out in accordance with national standards and technical conditions for packaging. Take measures according to the characteristics and requirements of different goods, such as proper painting or other effective anti-corrosion treatment of the equipment, and use a strong packaging box to prevent rain and snow, moisture, rust, corrosion.
2. Transportation: car transportation, delivery place: the buyer's use site.
3. The seller transports the equipment to the buyer's site, and the buyer is responsible for providing spreader unloading, providing hydraulic lubricating oil and related materials required for equipment installation and commissioning. The seller is responsible for the installation, commissioning and acceptance of the tendered equipment.