High Precision Metal Surface Grinding Machine
Device description:
1. The body and components are cast by Milhanna high grade cast iron FC30, which is artificially normalized heat treatment and then treated by natural aging. Components are processed by YASDA, MITSUI SEIKI, TOSHIBA, ELB and other world-class equipment once clamping processing. Precision size can be up to micron level, to ensure high precision equipment basic components.
2. Machine guide rails and precision ball screws are continuously lubricated by automatic lubrication system to ensure longer service life and accuracy. The cooling system is separated from the body to eliminate vibration and favorable heat dissipation.
3.Equipped with Siemens 828D CNC automatic grinding system, and secondary development, man-machine dialogue fool operation, with many optional equipment to choose from, including inner hole grinding device, automatic end measuring device, automatic outside diameter measuring device, etc.
4. The grinding feed system is composed of a V and a flat track of hand-crafted precision shovel, with automatic lubrication system and C3 level precision grinding ball screw, which can achieve smooth movement, excellent repeated positioning accuracy and long track life.
5. The standard configuration of the grinding wheel spindle is rear four and rear two bearing structure. High precision dynamic and static pressure spindle can also be selected, which has the characteristics of high rotation precision, high dynamic stiffness, good vibration resistance, high grinding efficiency and good grinding surface quality. For special work-piece grinding, the grinding wheel speed can be adjusted, up to 3500 RPM and 60m/s.
6. The tail seat is designed to be both rigid and robust. A hardened alloy steel sliding cylinder encrusted in the cast iron body is designed to carry the MT4 top core. The jacking force of the sliding cylinder can be easily changed by adjustment knobs at the rear. Special accessories oil pressure tail seat with a pedal to facilitate unloading work parts.
7.Siemens numerical control system as the standard configuration, after secondary development, all Chinese operation interface, easy to use. Equipped with Siemens high performance servo motor, the equipment CNC system and drive system have better compatibility, at the same time with automatic sand repair and automatic compensation function, to ensure the stability and precision of feed and grinding.
Technical specification:
Project | Unit | Model:FX32P-60CNC | |
Processing capacity
| Maximum rotating diameter of table | mm | 320 |
Maximum distance between two thimbles | mm | 600 | |
Maximum grinding diameter | mm | 320 | |
Maximum load between two parietal hearts | Kg(b) | 60(top work)/20 (working head only) | |
Grinding wheel size (diameter × width × aperture) | mm | 455×38(32-50)×127 | |
Grinding wheel speed | rpm | 1650 | |
Maximum linear speed of grinding wheel | m/s | 40(high speed grinding wheel up to 65) | |
Grinding wheel dressing | mm | Automatic type | |
Grinding wheel head | Feed Angle | Deg | 90 |
Feed stroke | mm | 250 | |
X axis fast moving speed | m/min | 6 | |
Minimum X-axis feed | mm | 0.001 | |
Head frame | Spindle speed | rpm | 50-500 |
Spindle form | Simultaneous or centering | ||
Thimble specification | MT-4 | ||
Tail seat | Automatic telescopic distance | mm | 40 |
Thimble specification | MT-4 | ||
worktable | Z axis fast moving speed | m/min | 8 |
Minimum z-axis feed | mm | 0.001 | |
Maximum travel | mm | 550 | |
Angle of rotation | Deg | + 6/-9 | |
Motor | Grinding wheel spindle motor | KW | 3.75/5.5 |
X-axis feed motor (servo) | KW | 2.2 | |
Z-axis feed motor (servo) | KW | 2.2 | |
Head frame spindle motor | KW | 0.75 | |
Cooling pump motor | KW | 0.75 | |
Lubricating oil motor | KW | 0.25*2 | |
Tail stock oil pump motor | KW | 0.75 | |
Other | Net machine weight | Kg | 3300 |
Gross machine weight | Kg | 3500 | |
Package size (length * width * height) | mm | 2800*2000*2000 |
Standard for machine accuracy:
1,Grinding machine accuracy item test list
Each surface grinder of the company has reached the precision specified in the "Precision Project Inspection Table of the Grinder", and the "Precision Project Inspection Table" of the grinder shall be handed over to the customer at the same time.
(See the attachment for the content specified in "Grinding machine Accuracy Item Inspection List")
2,Standard accuracy
After grinding (grinding) by Hotmann's grinding machine, the following requirements must be met: (Different grinding wheels should be used for different materials)
Rough grinding (generally grinding amount 0.01~0.02mm)
Fine grinding (generally 0.001~0.005mm)
No. | Machine type | Work piece size (MM) | Flatness | parallelism | Finish |
1. | S614 | 300*150*50mm | 0.005 | 0.005 | Ra0.4 |
1,Hotman is responsible for leading the whole acceptance work, and the buyer is responsible for collaboration.
2,The buyer must send a certain number of parts conforming to the requirements of the drawings of the technical proposal to Hotman Factory 3 days before delivery.
3 ,Hotman will make samples according to the drawings and parts provided by the buyer.
4, After the buyer confirms that Hotman's sample is qualified, Hotman can deliver the goods according to the contract delivery method.
5,Final acceptance -- user site
6,Acceptance contents: Hotmann shall make samples according to the drawings and parts provided by the buyer before, and Hotmann shall make samples to the buyer
7,If more than 20 consecutive grinding products are qualified, they shall be accepted.
8,After the machine tool arrives at the user's factory, Party A shall be responsible for unpacking and positioning the machine tool, preparing the power supply, spindle oil and cutting and grinding fluid, and notifying Hotman to come to the factory for installation, debugging and final acceptance.
9,Machine tool accuracy test: according to the machine tool accuracy test table issued by Hotman.
10,Dimensional accuracy meets the drawing.
11,After the above items pass the inspection, both parties shall sign the acceptance document.
12,After-sales installation and commissioning.
13,Hotman is responsible for the entire installation and commissioning services.
14 ,After the machine arrives at the customer's place, the customer service staff of Hotman shall start to install and debug the machine with the customer's assistance, and the debugging shall be completed until the machine is accepted by the customer.
15 ,The customer service staff of Hotman shall explain the matters needing attention to the customer clearly, demonstrate on the spot, and provide free tutoring when the customer operator is not able to do so. The tutoring period is generally no more than 2 days.
16 ,The buyer shall inform Hotman in the first time if it finds any fault in the machine during use, and Hotman shall arrive at the buyer's factory within 24 hours if the fault cannot be cleared by telephone communication.
17 ,Hotman guarantees that the equipment will be up and running for a year. During this period, if the product is damaged under normal operation and maintenance, Hotman will repair or replace it free of charge (except consumables such as hydraulic oil filter element).