第1个回答 2014-10-30
1 map size 7.9 + 0.3mm size volatility is relatively large, can not do this specification, can consult as the reference dimensions?
2 before the feedback to your company, this spring our torque is large. Wereceived your samples and your company offers one to one in which 8PCStorque data, we use our force measuring machine for measurement, compared with your company's data, as shown below:
Customers for sample CBH3110-A/N torque measuring contrast (unit: N)
Number 1 (towards the measurement of torque torsion) 1 (UNOCI measuringtorque (2) forward measurement) torsion 2 (UNOCI measurement)
10.520 0.606 0.887 1.030
20.484 0.570 0.888 0.965
30.500 0.568 0.900 0.966
40.471 0.591 0.889 0.958
50.517 0.581 0.917 0.965
60.497 0.583 0.921 0.991
70.514 0.605 0.941 0.996
80.498 0.587 0.866 0.973
The average value of 0.500 0.586 0.901 0.981
The maximum value of 0.520 0.606 0.941 1.030
A minimum of 0.471 0.568 0.866 0.958
As shown in the above data, the same spring, according to the measurementresults of Division I, two section torque than the expensive departmentmeasurement high of about 0.08 N.
Analysis of the reasons may be due to error in precision and measuring force measuring machine table, but to further identify the problem, please the expensive department also help to confirm the following questions:
A. because according to the parameter map surface, under ideal conditions, we calculated the spring two section torque values were: 0.53 N; 0.96 N, this data with the above we measured data are not consistent!
Therefore, we guess, figure on the surface of the two section torque value of 0.4903 N and 0.8929 N is measured according to the spring force value write up?? And according to the calculation results and decide?
If it is according to the measured value to write down, because every spring factory measurement data have access, for us, to be consistent with therequirement of drawings!!
B. according to do spring experience, in general, as the experimental results and theoretical calculation of discrepancies, lead free angle and torsion spring torquecan not satisfy, one of which we can only guarantee, namely guarantee force value, free angle for reference, or to guarantee free angle, stress valuemeasured as the standard.
But for this section of the spring, itself free angle tolerance 93o + 5O is not very big, also need to control two sections of force value, so it is difficult tomanufacture, considering a variety of reasons, our hope this spring torsion valuecan be used as a reference, ensure that the 93o + 5O Based.. please the expensive department to assess whether accept!!