1. Natural aging treatment above two years, making parts size and shape stability and better hardness in order to guarantee better precision stability.
2. The swiss machine castings use HT300, and having strict Secondary Aging Treatment after casting, to ensure machine stability after assembly. Many manufacturers not have this process, will influence stability of product after assembly.
3. Good Performance of “Mother Machine” (to Process Swiss Lathe Parts)
The better “Mother Machine”, The Better Swiss CNC Lathe Parts
Core components are processed by our United States HAAS horizontal machining center and other imported processing equipment, using special fixture to complete all critical working procedure of parts in a clamping, to guarantee all kinds of precision of parts.
Lathe bed, cutting tools’ base and other casting processing are done by our below processing equipment.
4. Kinds Of Detection Equipments (to Check Swiss Type CNC Lathe Parts Qualified or Not)
Such as Korea Dukin Three Coordinates Measuring Machine, British Renishaw laser interferometer, Projector, Dynamical balance testing instrument, sclerometer, roughmeter, the deflection instrument, micrometer, cylindricity measuring instrument etc to guarantee machine quality.
Each product strictly through three coordinates measuring, fully qualified into warehouse to assembly.
Korea Dukin Three Coordinates Measuring Machine
To precision measure swiss machine parts' curve and curved surface, size, shape,
form and location tolerance etc, To complete parts detection, shape measurement, process control, etc.
5. Strict Purchase of Raw Material
When purchasing, we pay more attention below items:
(1) Standard parts of swiss cnc lathe first conform to State and Industry Standard, strictly based on company authorized imported brand or high domestic brand.
(2) All of outsourcing processing parts are through strict investigations of qualifications of rigorous processing manufacturer,
Strictly control material and precision, to fully meet our drawings requirements.
6. Highly Experienced Assembly
7.Comprehensive Test Before Delivery
British Renishaw laser interferometer
Implementation measurement of straightness, verticality, angles, flatness, parallelism and various geometric accuracy.
Check Runout
Cross Tool radial runout, back tool runout, main spindle end face runout, main spindle radial runout, sub-spindle radial runout, guide bush radial runout
Certificate of Test for Swiss Type CNC Lathe
Static accuracy test
Table: Geometry accuracy test
No. | Part | Item | Test method and illustration | Tolerance allowance mm | Test tools | Real value | ||
G1 | MAIN spindle | Runout of main spindle | A Internal surface | Fix the indicator and make the probe to touch the positioning hole of spindle near the end. Rotate the spindle and test. The error is the maximum difference of the readings on the indicator.
| 0.005 | Indicator | ||
B External end surface | 0.005 | |||||||
G2 | Runout of main spindle axis | A runout | A：Runout Insert the test bar into the spindle hole and fix the indicator. Make the probe to touch the test bar near to the end surface. Rotate spindle and test. B,C：Parallelism Move Z1 axis and test on the position B and C. Test and the error is the maximum difference of the readings on the indicator.
| 0.005 | Indicator Test bar | |||
G3 | Parallelism of Z1 axis to the main spindle axis | B Vertical↓ | 0.01 (Each 100) | |||||
C Horizontal→ | 0.01 (Each 100) | |||||||
G4 | SUB spindle | Runout of sub spindle | A Internal surface | Test method is the same to G1
| 0.005 | Indicator | ||
B External end surface | 0.005 | |||||||
G5 | Runout of sub spindle axis | T20 | A Runout | Test method is the same to G2
| 0.005 | Indicator Test bar | ||
G6 | Parallelism of Z2 axis to the sub spindle axis | B Vertical↓ | 0.01 （Each 100） | |||||
C Horizontal→ | 0.01 (Each 100) | |||||||
G7 | Runout of spindle axis | T24 | A Runout | 0.005 | ||||
No. | Part | Item | Test method and illustration | Tolerance allowance mm | Test tools | Real value | |
G8 | Tool stand guide bush and main spindle | The coincidence of guide bush axis and spindle axis | A Coincidence |
A：Coincidence Fix indicator and make the probe to touch the internal hole surface of test tools. Rotate spindle and test. B, C：Parallelism Move Z1 axis and test on the position B and C. the error is the maximum difference of the readings on the indicator.
| 0.01 | Indicator Special test tools | |
G9 | Parallelism of guide bush and spindle axis | B Vertical↓ | 0.01 (Each 100) | ||||
G10 | C Horizontal→ | 0.01 (Each 70) | |||||
G11 | Tool stand guide bush and sub spindle | The coincidence of guide bush axis and spindle axis | A Coincidence |
A：Coincidence Fix indicator and make the probe to touch the internal hole surface of test tools. Rotate spindle and test B,C：Parallelism Move Z2 axis and test on the position B and C. the error is the maximum difference of the readings on the indicator.
| 0.01 | ||
G12 | Parallelism of guide bush and spindle axis | B Vertical ↓ | 0.01 (Each 100) | ||||
C Horizontal → | 0.01 (Each 70) | ||||||
No. | Part | Item | Test method and illustration | Tolerance allowance mm | Test tools | Real value | ||
G13 | Rear end tool unit and sub spindle | The coincidence of rear end tool hole axis and spindle axis | T31 | A Coincidence | A：Coincidence Fix the indicator and make the probe to touch the cylinder surface of test tool. Rotate spindle and test. B,C：Parallelism Move Z2 axis and test on the position B and C. The error is the maximum difference of the readings on the indicator.
| 0.005 | Indicator Special test tools | |
G14 | Parallelism of rear end tool hole axis and spindle axis | B Vertical ↓ | 0.01 (Each 100) | |||||
C Horizontal → | 0.01 (Each 100) | |||||||
G15 | Coincidence of rear end tool hole axis and spindle axis | T34 | A Coincidence | 0.01 | ||||
G16 | X1 feed axis and cross tools | The perpendicularity of X1 feed axis movement to the guide bush axis | A Side surface | Insert the special test tool into the cross driven tool collet bush. Fix the indicator and make the probe to touch the external cylinder surface of test tools. Move X1 axis and test on the position B and C. The error is the maximum difference of the readings on the indicator.
| 0.01 (Each 50) | Indicator Special test tools | ||
B Upper surface | 0.01 (Each 50) | |||||||
G17 | Installation stand of I.D tool | The perpendicularity of installation stand of I.D tool and spindle axis | B Vertical ↓ (T31) | Fix indicator and make the probe to touch the external end surface of stand. Rotate the spindle and test. The error is the maximum difference of the readings on the indicator.
| 0.01 (Each 50) | Indicator | ||
Reference to national industry standard JB/T 10165.1 1999 numerical control swiss automatic lathe precision inspection,
JB/T10165.2-1999 "numerical control swiss automatic lathe- technical conditions";
At the same time, also draw lessons from foreign similar products advanced standards in industrialized countries. Considering similar machine tools technology development and demand of market,
also adopt South Korea HJM company and Japan JIS B6218 spindle box movement single spindle automatic lathe performance and accuracy test method etc standard content;
The whole machine performance and precision data reach to technology of same kind machine in Japan and South Korea
