As a professional CNC lathe processing business person, in addition to having a certain understanding of CNC lathe processing technology, you must also be proficient in CNC lathe processing prices, and a correct and reasonable quotation can not only allow cooperative customers to place orders quickly, but also ensure that the company Make money and bring benefits to the company. Today Wofu will introduce to you in detail the method of determining the price of CNC lathe processing.
Detailed calculation method of CNC lathe processing price:
1. First, we must understand the customer’s key or complex part drawings, and then confirm the detailed CNC lathe processing method with the technology to obtain the time-consuming of each processing procedure.
2. The processing cost can be calculated according to the equipment hourly cost required by each CNC lathe processing procedure.
3. The final CNC lathe processing price is added in proportion to packaging and transportation, management costs, tooling tools, and profit.
Rough estimation method of CNC lathe processing price:
1) For large items, the volume is larger and the weight is heavier.
General difficulty: The ratio of the processing cost of CNC lathes to the cost of the entire parts is about 1:1, which is inversely proportional to the purchase amount;
More difficult: the ratio of the processing cost of the CNC lathe to the cost of the raw material of the entire part is about 1.2~1.5:1, which is inversely proportional to the purchase amount;
2) For small and medium items.
Normal difficulty: the ratio of the cost of CNC lathe processing to the cost of the entire parts is about 2~3:1, and this ratio is inversely proportional to the purchase amount;
More difficult: The ratio of the processing cost of CNC lathes to the cost of the entire parts is about 5-10:1, which is inversely proportional to the purchase amount;
According to CNC lathe processing parts, quantity and accuracy requirements, charging method:
1. CNC lathe processing drilling and processing general materials.
The depth-to-diameter ratio is not more than 2.5 times and the diameter is less than 25MM. According to the drill diameter*0.05 The diameter of the drill is 25-60 according to the drill diameter*0.12 (minimum hole is not less than 0.5 yuan). 0.4 charge the base price*5 for the hole precision requirement less than 0.1MM or the center distance requirement less than 0.1MM, the charge standard for tapping is charged according to the tap diameter*0.2 (cast iron as the standard, steel parts *1.2) in batch processing Charged at standard base price*0.2-0.8 (according to batch size and processing difficulty)
2. CNC lathe processing general precision optical axis processing.
If the ratio of length to diameter is less than 10, the charge will be charged according to the size of the processed part*0.2 (the bottom is 5 yuan). If the aspect ratio is greater than 10, the basic price of the general optical axis * the number of aspect ratios * 0.15, and the accuracy required within 0.05MM or the tapered ones are charged at the basic price of the general optical axis *2. General stepped shafts (fan shaft, pump shaft, reducer shaft, grinding wheel shaft, motor shaft, spindle, etc.) are processed with general precision optical axis CNC lathe, and the base price is *2. If the stepped shaft has a taper, the inner and outer ribs are processed according to the general precision optical shaft, and the base price*3 is charged.
The general-purpose lead screw is processed by the general precision optical axis CNC lathe, and the base price*4 is charged. The charging standard for general flange parts is charged according to the material diameter*0.07, and the diameter larger than 430MM is charged according to the material diameter*0.12. General round nut parts are charged according to diameter * 0.25 (including material), generally trapezoidal, triangular nut parts are charged according to diameter * 0.3 (materials are not included), general shaft sleeve parts (diameter less than 100, diameter-length ratio less than 2) according to material outer diameter * 0.2 Charged, the diameter-to-length ratio exceeds 2 according to the diameter-length ratio * base price * 0.6. Generally, if the wear amount of the bearing platform parts is less than 2MM, the diameter is less than 40MM and the width is less than 25MM. The base price *2 is charged if the center frame is required or the length is greater than 1.7 meters. Those with a diameter greater than 40MM will be charged as diameter*0.2.
Summary of some industry words in CNC lathe processing:
Cut the inner hole: rough machining of the inner hole. But it generally refers to the inner hole with a small diameter.
Pick thread, pick button: threading.
Set buckle, thread: pull the thread of the brace.
Quenching (zan): Quenching.
Tip (shao4): taper, slope, refers to the workpiece with a large end and a small end.