Today we come to discuss the approximate calculation method for the machining quotation. The material cost is a certain major difference. In each company's different labor costs, transportation costs, consumption costs, and tax revenue, what do these partially machined factories pass? What kind of calculations, the following small make up some of the information for reference, (calculation methods vary depending on the price)
Detailed calculation method:
1) First, you can ask the other party to provide preliminary process arrangements for key or complex parts, detailing the time spent on each process and each process.
2) The processing cost can be calculated based on the hourly cost of the equipment required for each process. The specific equipment cost you can also ask the supplier to, for example, ordinary regular plus hourly between 60 ~ 80 (including tax) milling machine, general car and other general equipment is generally ¥ 30
3) In accordance with the proportion of packaging and transportation, management costs, tooling tools, profit is the price
Of course, the price will have a lot to do with the annual purchase volume and the degree of difficulty of the part.
There is a lot of price difference between single item and batch, which is also very easy to understand.
Rough estimation method:
1) For large parts, larger and heavier.
Difficulties: The ratio of processing costs to the raw material cost of the entire part is 1:1, which is inversely proportional to the purchase volume;
Difficulties: The ratio of processing costs to the raw material cost of the entire part is 1.2 to 1.5:1, which is inversely proportional to the purchase volume;
2) For small and medium pieces
Difficulties: The ratio of processing costs to the raw material cost of the entire part is 2 to 3:1, which is inversely proportional to the purchase volume;
Difficulties: The ratio of processing costs to the cost of raw materials for the entire part is 5 to 10:1, which is inversely proportional to the purchase volume;
Since there is a great deal of process flexibility in machining, that is, a part can have a variety of process arrangements, the cost is certainly not the same.
However, suppliers sometimes quote you with a complex process to increase prices, and actual production uses other simple processes, so buyers themselves
The reading of the drawings and the knowledge of the parts processing determine the cost of your grasp, so the procurement of mechanical parts requires a more comprehensive knowledge of machining.
Machining costs constitute, generally in accordance with the hours worked!
If you are processing a workpiece, first is the material cost of the other party; then some travel expenses (usually not) to buy the workpiece;
The main thing is that you need to process the workpiece processing time, the general lathe 10-20 yuan / hour, fitter to be less about 10-15 / hour; the rest is not an example;
If there are no ready-made tools (tools, molds, etc.), the cost of the purchase also requires you to bear part or all of the cost; the final addition is the processing fee you have to pay!
Material costs, machine depreciation, labor costs, management fees, taxes, etc. are basically required. Or the material fees, processing fees and taxes, as well as business expenses, transportation costs, and the need for a budget to do more than a thorough understanding of the market, do not touch it for years will not be completely clueless, even my teacher Also often feeling! Do not pay attention at all!
Process problems should include material fees, processing fees (which process prices are not the same), equipment depreciation, workers' wages, management fees, taxes, and so on. It is mainly to determine the process first, namely the processing method, then calculate the working hours according to the craft, and determine the basic processing cost of the individual parts from the working hours, plus other expenses. Process is a very complicated knowledge a different parts of the use of different processes, prices vary, attached to the basic price of processing all kinds of work hours In fact, the price of various types of work hours is not fixed, according to the difficulty of the workpiece, the size of the device, performance The difference is different, of course, the key is to see how much your volume, but in general it has a basic price, floating between the basic price.
1. Car basic price: 20-40 specific according to the actual situation, like a small piece, a very simple working hours is less than 20 yuan; sometimes even only 10 yuan such as some large pulleys, processing allowance, the boss only earn The money of cast iron powder is enough; sometimes if the workpiece is large, the general market can not be processed can be high, two or three times, others can not. 2. Grinding basic price: 25-45
3. Milling basic price: 25-45 4. Drilling basic price: 15-35
5. Plane base price: 15-35
6. Line cutting basic price: 3-4/900 square millimeter 7. Basic price of electric spark: 10-40, single piece generally press 50/piece (less than 1 hour)
8.NC base price: it is 2-4 times more expensive than ordinary 9. Engraving: Generally single-piece .50-500/piece of course, still a word. The specific product specific price. The above price is only for reference, if What kind of experience do you have, and I hope that everyone can speak it out and everyone can communicate together.
No. Equipment Name Model Processing Range Processing Cost (yuan/hour)
1 lathe C616Φ320×750~1000 11
2 Lathe C6140Φ400×1000~2000 13
3 lathes J1-MAZAKΦ460×1000~2000 15
4 Lathe C6150Φ460×1000~2000 15
5 Lathe C630Φ630×1000~2000 21
6 lathe C650Φ800×1500~5000 30
7 Vertical Lathe C5116AΦ1600 28
8 Radial Drilling Machine Z3050Φ50~Φ63 16 9 Radial Drilling Machine Z3080Φ80 20
10 Vertical Drilling Machine Z5140AΦ32~Φ40 12
11 Horizontal Boring Machine T68 1000×1000 26
12 Horizontal Boring Machine T611 1000×1000 30
13 vertical boring machine T4163 630×110056
14 Horizontal Boring Machine T6111A 1200×1200 36
15 universal garden grinder M1420Φ125~220×350~1000 15
16 universal garden grinder M1432A M9025×500~1000 19
17 universal garden grinder M1432BΦ315~320×1500~3000 26
18 universal garden grinder M1331AΦ315~320×1500~3000 26
19 universal garden grinder M1450Φ500×1500~2000 28
20 Precision Universal External Grinding Machine MG1432Φ320×1000~2000 32 21 Internal Grinding Machine MG1432Φ12~Φ100×130 13
22 Surface Grinding Machine M7120 200×630~650 16 23 Surface Grinding Machine M7130 300×1000 21
24 Surface Grinding Machine M7150 500×2000 40
25 rail grinding machine M50100 1000×6000 28
26 Spline Grinding Machine M8612AΦ120×1800 28
27 thread grinding machine Y7520WΦ200×500 20
Gear Grinder Y4632AΦ320×6M 30
29 universal tool grinder M5MCΦ200×500 13
30 Universal Tool Grinder MW6020Φ200×500 13
31 Universal Tool Grinding Machine M9025Φ200×650 16
32 universal tool grinder M6025HΦ250×650 16
33 universal tool grinder M6425Φ250×650 16
34 broach grinding machine M6110DΦ100×1500~1700 16
35 Hobbing Machine YM3150EΦ500×8M 22
36 lever rack YM5150BΦ500×8M 18
37 Vertical Milling Machine X5030AΦ300×1120 16 38 Vertical Milling Machine X52KΦ320×1250 18
39 Vertical Milling Machine XA5032Φ320×1250 18
40 Horizontal Milling Machines X63WΦ400×1600 24
41 ram milling machine XS5646/1Φ425×2000 28
42 Planer B665 650×800 14
43 Planer B650 650×800 11
44 hydraulic planer BY60100900~1000 16
45 Hydraulic Planer B690 900~1000 16
46 Planer B2016A 900~100028
47 planer B2020A 2000~6000 50
48-bar bed B5032 200~320 12
49 Broaching machine L6140 40T 15
50 line fitter Φ200×650 15
51 Assembly fitter Φ200×650 30 52 Mold fitter Φ200×650 30
53 Machining Center Φ200×650 80
54 wire cutting Φ200×6509 55
55 welding knife Φ200×650 7
Due to different regions, different time, different manufacturers, different requirements, suppliers are different, the number is different, there are many different, the price is also very different, there is no certainty. But generally according to processing time billing, to give a reference as follows (wherein the figures only for reference, regional, time difference is really great): This information does not include electricity processing, such as line cutting, is generally based on the area to be billed. "Regarding Charges for General Mechanical Parts"
First, the method of working hours to remember: Z25 drilling machine, CA6140 lathe planer plugging sawing machine to 15 yuan per hour bill. Vertical, horizontal milling, wire cutting, large lathes, gantry milling at 20 yuan per hour. The fitter generally maintains a fee of 15 yuan per hour. The chronometric unit starts from the start of processing and ends at the end of processing and acceptance.
Second, based on parts, quantity, accuracy requirements charging methods:
1, drilling material
Diameter less than 2.5 times the diameter of 25MM Diameter of the following drill * 0.05 Diameter of the diameter of 25-60 According to the diameter of the drill * 0.12 (minimum hole is not less than 0.5 yuan) The ratio of depth to diameter greater than 2.5 of the general material Charge base price * depth to diameter ratio * 0.4 For the accuracy of the aperture is less than 0.1MM or for the center distance requirement is less than 0.1MM base price * 5 Charges for tapping charges Tap diameter * 0.2 charges (using cast iron as standard, steel another * 1.2) During batch processing Standard base price * 0.2-0.8 (based on batch size and ease of processing)
2, lathe processing general precision optical axis processing
The ratio of length to diameter is less than 10% of the machined workpiece blank size * 0.2 (the bottom 5 yuan) length to diameter ratio is greater than 10 according to the general optical axis base price * length to diameter ratio * 0.15 accuracy requirements within 0.05MM or required belt The taper of the general axis price of the general axis * 2 to receive the general step shaft (fan shaft, pump shaft, reducer shaft, grinding wheel shaft, motor shaft, spindle, etc.) to the general accuracy of the optical axis processing base price * 2 to receive the step shaft if there is taper, Inner and outer ribs, according to the general accuracy of the optical axis processing base price * 3 charge for general use screw according to the general accuracy of the optical axis processing base price * 4 to receive the general flange type parts charges according to the material diameter * 0.07 charge, diameter greater than 430MM according to the material diameter * 0.12 charge. General round nut parts charge by diameter * 0.25 (including materials) General trapezoid, triangular nut parts by diameter * 0.3 (not included materials) General sleeve parts (diameter less than 100 diameter length less than 2) according to the material outer diameter * 0.2 , Diameter ratio of more than 2 by the length ratio * base price * 0.6 general repair bearing table parts wear less than 2MM diameter less than 40MM width less than 25MM each 5 yuan, need to be on the center frame, or length greater than 1.7 meters of the base price *2 charged. Diameter greater than 40MM by diameter * 0.2 charged.
3, milling machine processing general keyway processing
(The length-to-width ratio is less than 10) The key slot width *0.5 is charged (minimum 5 yuan). An aspect ratio of more than 10 is charged based on the length-to-width ratio*base price*0.1. If there is a strict location requirement, the base price*2 will be charged. Materials with hardness greater than HRC40 are processed at base price*2. General spline processing (length-diameter ratio less than 5) according to the spline shaft diameter * 0.8 charge (minimum 15 yuan) general gear processing by modulus * number of teeth * 0.5 yuan to collect. The worm gear is charged based on the base *1.2. Helical gears, bevel gears, and shift gears are charged at the base price*2. The general plane processing class is charged at 1.5 yuan per square meter (the lowest 5 yuan). The general boring processing is based on the hole diameter * 0.25.
4ã€Band sawing processing general round steel, thick-walled pipe, square steel cut off, calculated at 5 yuan per square centimeter (minimum 5 yuan) General steel cutting, sub-section, opening angle of 10 yuan per square meter (the lowest 10 yuan).
5, line cutting general parts according to the cutting area (square mm) * 0.008 yuan. Need to wear silk parts per hole increase 5 yuan.
6, welding and gas cutting and plasma cutting Common electrode diameter of 3.2 yuan each 1 yuan, TH506 welding castings 3 yuan each. Gas cutting processing, according to the thickness of the iron plate MM * cut length M calculated plasma cutting stainless steel, according to gas cut base price * 3 charged, cut carbon steel gas cutting base price * 2 charged.
7. With regard to special urgent parts and overtime work, the special expedited parts are charged at the standard base price*2. It is defined as: The first time is to repair or manufacture emergency parts for a specific customer. Overtime refers to parts that must be manufactured continuously over normal working hours. Optical tool curve grinding processing fee 60 yuan / hour 200 lathe, 20 yuan / hour 300 or more lathe 30 yuan / hour milling machine 20 yuan / hour drilling 15 yuan / hour trampoline 35 yuan / hour grinder 30 yuan / hour slotting 15 yuan / hour Bull planer 20~25 yuan/hr planer, milling 30 yuan/time machine (rolling steel plate thickness below 20) 60 yuan/hour C620.C6140 basic 20 yuan an hour 30 lathe one hour 30 yuan vertical lathe (lathe One hour 60 yuan rocker drill one hour 20 yuan T68 trampoline one hour 30 yuan cow planer small vertical milling milling 20 yuan an hour gantry milling planer 60 yuan an hour 400 flat and one meter below the circle bed one hour 20 Yuan three meters away one hour 60 yuan an hour processing center 80 yuan an hour (counted as a number of cars milling) welding gas cutting basic to calculate, not easy to calculate to an hour 30 yuan fitter assembly one hour 20 yuan. Payment is also related to the number of outside processing, precision machining hours grinding tolerance 0.005 40 yuan / hour, spark tolerance 0.01 80 yuan / hour, walking wire tolerance 0.005 100 yuan / hour. Koji grinding tolerance 0.003 180 yuan / hour
1. Annual output (determination of investment scale)
2. Apportionment of plant and land input 3. Welding station number and pipeline depreciation rate (apportionment of production lines)
4. Number of welding equipment and depreciation rate (equipment input and allocation)
5. Costs of welding consumables 6. Welding fixtures and depreciation rates (input and apportionment of fixtures) 7. Wages (including salaries, bonuses, working meals, transportation expenses, medical funds, unemployment funds, etc.) of production workers, technicians, and management personnel Pension funds, housing accumulation funds, and personal adjustment taxes, etc.) and manhour utilization rate 8. Energy consumption and environmental protection costs input and distribution
9. Routine maintenance costs for welding equipment, fixtures and assembly lines 10. Cost sharing for scrapped and returned repairs 11. Apportionment of product development costs 12. Apportionment of exchange fees 13. Profitability rate 14. Various tax rates generally include the above aspects. There are a lot of omissions!!
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