China Shenzhen Perfect Precision Product Co., Ltd. company news

For precision parts processing, it is quite strict, the processing process has a tool in, tool out, etc.. For the size of specific requirements, the accuracy is also required to be relatively high, such as 1mm plus or minus how many microns, etc., if the size is too much wrong will become scrap, then it is the same as having to process again, time-consuming and labor-intensive, and sometimes even a whole processing material completely scrap, which leads to increased costs, and at the same time, the parts are certainly not used. So what standards and requirements should be followed for precision parts processing? For precision parts processing is the main dimensional requirements, such as how much the diameter of the cylinder, there are strict requirements, positive and negative error within the specified requirements to be considered qualified parts, otherwise all substandard parts; > length, width and height are also specific and strict requirements, positive and negative error also have provisions, let's say the embedded cylinder (to take a relatively simple basic parts for example);, if the diameter is too large, beyond the error Allowed within the range, it is easy to appear, inserted into the situation, if the actual diameter is too small, beyond the error allowed negative low limit, it is easy to insert too loose, unstable problems occur. These are substandard products, or the length of the cylinder is too long or too short, more than the error tolerance range, basically do not meet the requirements of the product, are required to be scrapped, or processed again, which will inevitably cause the cost to increase. In fact, the main problem is the size, must be processed in accordance with another drawing, the actual size of the processing will never be the same as the theoretical size of the drawing, except that, as long as the processing size within the error tolerance is also qualified parts, so the requirements of precision parts processing is in strict accordance with the theoretical size of the processing. Second is the advanced precision parts processing equipment and testing equipment, advanced processing equipment makes processing precision parts easier, higher precision, better results. Testing equipment can detect the parts that do not meet the requirements, so that all the products sent to customers really meet the requirements.

With the continuous development of society, people's living standards gradually improve, our side will often carry out precision machining, so it is more familiar with it. We should pay attention to the details and skills when precision machining, so that you can get better results, today I came to learn with you about the tips and tricks in precision machining, respectively, as follows. Trick one: the vise jaws removed, another two M4 threaded holes, two flush with the jaws of 1.5mm thick steel plate 2, with aluminum buried rivets riveted on 0.8mm thick hard brass plate 3 will be fastened to the jaws with M4 buried head screws 1, forming a durable soft jaws. This can also protect the hardware parts from being clamped bad, but also has interchangeability. Trick two: the use of magnets to absorb small parts (fee pieces) suck and take are not convenient, can be sucked in the magnet 1 below an iron plate 2, not only can suck a lot of small pieces, and the iron plate will be pulled away, small parts will immediately automatically dumped into the collection box, not enough to impress the heart, but very practical. Trick three: the pulley drive, the pulley often slipped between the axle, the axle with ￠ 15 ~ 18mm nesting drill to scratch a series of nesting, this can form an adsorption force to prevent slippage, turning waste into treasure, the boss will reward. Trick four: When the hexagonal wrench 1 handle is short and cannot be force, you can insert the wrench into the slot from a tube with an inner diameter slightly larger than the wrench from a section of the milling slot, which can be used as a long handle. Tip five: For tightening the workpiece, there is the saying of positioning and then clamping, but for a workpiece, the first clamping and then positioning, because the clamping will certainly try to deform the workpiece, so it should be clamped and then positioned, and for 6-point positioning, look for the freedom to limit it.

No matter what we do, we need a standard so that we can do things well, especially when it comes to precision parts machining. According to my understanding, on a lathe, the rotary motion of the workpiece and the linear or curved motion of the tool are used to change the shape and size of the blank and machine it to meet the requirements of the drawing. Ordinary machine tools are increasingly difficult to meet the needs of processing fine parts. CNC fine parts machining mainly includes ultra-fine turning, mirror grinding and grinding. The primary condition of CNC fine parts machining is the accuracy of its process benchmark, the benchmark on the mechanical drawings are indicated by a specific benchmark symbol with a circle in capital letters A, B, C, D, etc.. When the datum symbol is aligned with the face and the extension of the face or the scale boundary of the face, it indicates that the face is the datum. When the datum symbol is aligned with a scale line, it is based on the centerline of the solid indicated by the scale. The process accuracy mentioned above is a more abstract term. Mounting datum refers to the precision used to determine the orientation of a part in a component or product during mounting. The measurement datum refers to the specification used to measure the scale and orientation of the machined surface when the part is inspected. The positioning datum is the datum used to position the workpiece in the machine tool or fixture during machining. the process datum of CNC fine parts machining is the condition to ensure the production of high quality parts.

Nowadays, with the continuous development of society, people's living standards have improved significantly, and we often come into contact with mechanical parts processing around us, and its arrival has brought great convenience to our lives. Sometimes, due to our use of improper methods, mechanical parts processing is prone to errors, when we should do it? Today, I came to learn with you to learn what errors are prone to mechanical parts processing, respectively, as follows. 1, positioning error: positioning error mainly includes the benchmark does not overlap error and positioning vice manufacturing inaccuracy error.   2, measurement error: parts in processing or measurement after processing, due to measurement methods, gauge accuracy and workpiece and objective factors have a direct impact on the measurement accuracy.   3, tool error: any tool in the cutting process is inevitable to produce wear, and thus cause the size and shape of the workpiece to change. 4, fixture error: the role of the fixture is to make the workpiece equivalent to the tool and machine tool has the correct position, so the geometric error of the fixture on the machining error (especially the position error) has a great impact   5, the machine tool error: including spindle rotation error, guide error and drive chain error. Spindle rotation error refers to the actual axis of rotation of the spindle moment relative to its average axis of rotation of the amount of change, it will directly affect the accuracy of the workpiece being machined.

Fine parts in practice in the operation of the strength and resistance requirements are relatively high, its operational function and service life and its appearance function has a great contact, and the progress of the appearance of the function, is unable to rely solely on the material to do, is also very uneconomical practice, but the practice of processing must make its function to reach the specification, then you need to use the appearance of the treatment skills, which can often achieve twice the result with half the effort In recent years, this skill has also been rapid development. In the mold appearance treatment category mold polishing skills is a very important link, is also an important process in the workpiece processing process. Fine parts appearance treatment process in the processing is very important, so what are the fine parts appearance treatment process? Today, let our non-standard parts processing factory to explain it to us! Fine parts of the mold appearance polishing processing operations, not only received only the process and polishing equipment, but also by the impact of the mirror degree of the parts material, this point in the current processing has not been satisfied with the focus, which is also to show that the polishing itself is affected by the material. Although the processing skills to improve the appearance of fine parts continue to transform and upgrade, but the most used in the processing of fine parts is still mainly for hardening film accumulation, and nitriding, carburizing skills. Because nitriding skills can obtain a very high level of appearance function, and nitriding skills process and fine parts in the steel quenching process has a very high harmony consistency, and the temperature of nitriding is very low, so that after treatment through nitriding skills do not need intense cooling process, so the deformation of fine parts will be very small, so nitriding skills are also used in the processing of fine parts to strengthen Nitriding is also one of the earliest skills used in the processing of fine parts to strengthen the external function, and it is also the most widely used at present.

Parts processing process is a direct change in the appearance of raw materials (shape, size, location, performance), so that it becomes a semi-finished workpiece or finished product process, the process we call the process, that is, the parts of the processing process benchmark, precision parts processing process is more complex, the following CNC precision parts processing factory to answer the process benchmark for precision parts processing. Precision parts processing process benchmark can be divided into different processes: casting, forging, stamping, welding, heat treatment, machining, assembly and so on categories. Precision parts machining process generally refers to the entire part of the CNC machining and machine assembly process in general, and other such as cleaning, inspection, equipment maintenance, oil seals, etc. are only auxiliary processes. Turning methods to change the surface properties of raw materials or semi-finished products, the process we call CNC machining process, precision parts processing industry in the CNC machining process is the most important process. CNC precision parts machining process benchmark (1) positioning datum, in the CNC lathe for processing lathe or fixture used in the positioning datum. (2) measurement benchmark, this benchmark usually refers to the size or position of the standard to be observed during inspection. (3) assembly benchmark, this benchmark we usually refers to the position of the parts in the assembly process standards.

Around us, there are many processors, they process the range, that is, some spare parts, or some hardware, many people see the benefits, have joined the industry, precision parts processing is one of them, then the precision parts processing plating processing quality. A, check the quality of plumbing hardware products Take the faucet for example, the appearance of the product does not allow the existence of burrs, pockmarks, faucet material is mainly copper-zinc alloy, some manufacturers in order to save money, the material is basically not pure copper-zinc alloy, often adulterated with a large number of impurities, so the quality of the product is basically not guaranteed, stop electroplating processing often presents sand eyes, pinholes and other phenomena, not only affect the quality of production, there may think that the plating factory process is not Mature. Therefore, before plating, we should grasp the inspection, if the plating process presents problems, we can try to stop the oil removal and then test, and stop plating with the material qualified products to check whether the material quality is the cause. Second, plumbing hardware products to stop polishing process The appearance of plumbing parts to stop the polishing process, to make the required shape, smooth the rough appearance of the product, to eliminate the appearance of parts such as blemishes, so that the appearance of the parts both beautiful and anti-corrosion effect. In the plumbing parts, the quality of the appearance is the first element to judge the whole product, burrs, pockmarks, pinholes, etc. can not be presented, the appearance of the brightness to be high, which are required to polishing process to complete.

Today, with the rapid development in the market in various industries, recognized by everyone as well as the use of this is proof of the existence of this industry, is how important, when we do not come into contact with this industry, it is certainly not a certain understanding of it, then the precision machining in the techniques and tricks are what? Trick one: the vise jaws removed, another processing two M4 threaded holes, two flush with the jaws of 1.5mm thick steel plate 2, with aluminum buried rivets riveted on 0.8mm thick hard brass plate 3 will be fastened to the jaws with M4 buried screws 1, constituting a durable soft jaws. This can also maintain the hardware parts are not clamped bad, but also has interchangeability. Trick two: using magnets to draw small parts (fee pieces) sucking and taking are not convenient, can suck an iron plate 2 under the magnet 1, not only can suck a lot of small pieces, and the iron plate will be pulled away, small parts will immediately automatically dumped into the collection box, lack of moving heart, but very applicable. Trick three: the pulley drive, the pulley often slipped between the axle, the axle with ￠ 15 ~ 18mm scratch nest drill bit to scratch a series of nest, which can constitute the adsorption force to avoid slippage, turning waste into treasure, the boss will reward. Tip 4: When the hexagonal wrench 1 shank is short and cannot be forceful, the tube with a slightly larger inner diameter than the wrench can be inserted into the slot from a section of the milling slot, which can be used as a long shank. Tip 5: There is the saying of positioning and then clamping about tightening the workpiece, but about a workpiece, the first clamping and then positioning, because the clamping will certainly try to deform the workpiece, so it should be clamping and then positioning, about the 6-point positioning, looking to limit its freedom.

Today, our economy is more and more developed, not only our economy, even our other aspects are the same, also become developed, the most obvious is our industry, mechanical spare parts processing is also the same, so what do you need to pay attention to when installing machinery? 1, to pay great attention to avoid the installation deviations arising from the installation. (1) tighten the gland should be carried out after the coupling is corrected, the bolt should be evenly supported on to prevent the gland end deflection, check the points with a stopper, the error is not more than 0.05 mm. (2) Check the fit clearance (i.e. concentricity) between the gland and the outer diameter of the shaft or sleeve, uniformly all around, and check the tolerance of each point with a stopper no more than 0.01 mm. 2, the spring compression amount to be carried out in accordance with the provisions, do not allow too large or too small phenomenon, requiring an error of 2.00 mm. Too large will increase the end surface pressure, another speed end wear. Too small will cause insufficient pressure and can not play a sealing role. 3, after the installation of the dynamic ring beard to ensure flexible movement on the shaft, the dynamic ring pressed to the spring should be able to automatically spring back.

As the times are changing, there are many processing technologies around us, each is different, in the industry, making a different contribution, precision machining is one of them, then the development of machining technology is not very good? Before the industrial revolution, machinery is mostly made of wood structure by hand by carpenters, metal (mainly steel and iron) is only used to manufacture instruments, clocks, locks, pumps and small parts on wooden machinery. Metal processing mainly relied on the machinist's fine work to achieve the required precision. With the widespread use of steam engines and the subsequent emergence of mining, metallurgy, ships and locomotives and other large machinery development, the need for forming and cutting metal parts more and more, the metal materials used from copper, iron to the development of steel-based. Mechanical processing (including casting, forging, welding, heat treatment and other technologies and their equipment, as well as cutting and machining technology and machine tools, tools, gauges, etc.) developed rapidly, thus ensuring the development of the supply of various mechanical equipment needed for production. At the same time, with the increase in production volume and the development of precision processing technology, but also to promote the formation of a large number of production methods (parts interchangeable production, professional division of labor and collaboration, flow processing line and flow assembly line, etc.).