Testing machine type: LCD digital cup protrusion testing machine
Specification and model: GBS-60B

1、 Product Introduction:
This machine adopts an electromechanical integration design, with a clean and elegant appearance. It is a precision equipment for process performance testing of metal sheets and strips, and can achieve GB/T4156-2007 "Erikson cupping test method for metal sheets and strips", which meets the requirements of AETME643-2008 and the standards of ASTME643-2008. It tests the plastic deformation performance of metal sheets and strips during the testing process
2、 Performance characteristics:
1. The LCD digital cup protrusion testing machine adopts a new structural principle, which uses a servo motor to load at a constant speed and can achieve constant speed control. The stamping process is controlled by a microcontroller, and the stamping speed can be infinitely adjusted and pre adjusted. In the past, it was impossible to achieve constant rate control for the oil source of the oil cylinder when applying force.
2. The clamping force is independently loaded by the hydraulic oil source, and the clamping force can be adjusted. The data is displayed synchronously and can be independently calibrated.
3. The force measuring device has been changed from hydraulic sensors to spoke type sensors, and the measurement of cup protrusion value has been changed to encoder measurement. Combined with spoke type sensors (direct force measurement), the accuracy and reliability of measuring cup protrusion value on the testing machine have been greatly improved.
4. The cup protrusion fixture is easy to replace and the sample is easy to load and unload. After the sample is placed, the automatic button can be pressed to complete the clamping. The test parameters of the LCD digital cup protrusion testing machine can be input and changed. The stamping process is fully automatic with one click and there is no human influence. It can achieve closed-loop control. When the punching pressure value drops, the sample will automatically stop if there is a crack. At the same time, it is easy to observe the testing process and can more accurately judge the cup protrusion value at the moment of crack occurrence. The experimental data is displayed on the LCD screen and has peak memory function, including maximum impact force, cup protrusion value, etc., which can realize the storage of experimental results.
3、 Main technical parameters
1. Maximum testing thickness: Standard cup protrusion test 0.05~3mm (high-precision sensor, can achieve ultra-thin plate testing);
2. Maximum width of the board: 90-100mm;
3. Maximum stroke of punch: 60mm;
4. Maximum cup load: 60kn;
5. Maximum tightening load: 10kn;
6. Digital display resolution: 0.01mm;
7. Test force measurement accuracy: ± 1%
8. Deformation accuracy: ± 0.5%
9. Test speed: 0.05mm/min-200mm/min (stepless speed regulation);
10. Cup protrusion test mold specifications:
Standard punch ball: φ 20 ± 0.05mm
Standard pad mold aperture: φ 33 ± 0.1mm
Standard fixed mold aperture: φ 27 ± 0.05mm
11. Hydraulic oil: N46 hydraulic oil
12. LCD screen display content: clamping load, impact force, displacement and cup protrusion value, rate, test curve, etc
13. Control method: Single chip microcontroller controls the experimental process
14. Dimensions: 770 × 780 × 1200 (mm)
15. Power supply: AC380V, AC220V
16. Weight: 280kg