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

1 parts usually by a combination of multiple surface layers, the production and processing of each surface layer is generally required to be completed in stages. In the reasonable arrangement of precision machinery parts processing production processing sequence, should first centralize the rational arrangement of each surface layer of rough machining, in the middle according to the need for reasonable arrangements for semi-finishing, and finally reasonable arrangements for finishing and finishing production processing. For the high precision requirements of the workpiece, in order to reduce the deformation caused by rough machining on the impact of finishing, usually rough and finish machining should not be completed continuously, but should be completed in stages, spacing moderate time periods. Non-standard parts machining cutting process flow reasonable arrangement of the general principle is: the front of the work needs to be fully prepared for the work after the foundation, to do a good job of service. In the process of non-standard parts machining, the foundation is the most important, precision mechanical parts processing is also the same, often the first production and processing of fine benchmark, followed by a change of fine benchmark positioning production and processing of other surface layers. For the box parts, usually the main hole as a rough benchmark for the production of processing plane, and then the plane as a fine benchmark for the production of processing hole system; for shaft parts, generally is the outer circle as a rough benchmark for processing the center hole, and then the center hole as a fine benchmark for the production and processing of the outer circle, end face and other surface layers. If there are several fine benchmark, it should be in accordance with the sequence of benchmark conversion and gradually improve the processing accuracy of the principle to rationalize the production and processing of the base surface and the main surface layer.

Precision machining is a process of changing the type specification or function of a product workpiece by machining machinery. It can be divided into cold machining and hot machining according to the temperature state of the product workpiece being produced and processed. Usually the process is done at room temperature and does not cause chemical or physical changes in the product workpiece, which is called cold machining. Usually the production and processing at higher or lower than room temperature will cause chemical or physical changes in the product workpiece, which is called hot processing. Cold processing is divided into cutting and pressure production processing according to the difference of processing methods. Thermal processing commonly includes heat treatment, forging, casting and welding. 1. the beginning of the CNC machine tool high precision machining efficiency is higher, CNC machine tool mechanical parts processing can additionally produce manufacturing several surfaces, compared to the usual lathe processing can save a lot of process, reduce the time, and CNC machining center out of the parts quality is also relatively general CNC lathe to stabilize a lot. 2. CNC machine tools high-precision machining in the development of new products has an irreplaceable effect, generally can be programmed to process mechanical parts of different degrees of complexity, ah, and change and update the design only need to change the lathe program, which can greatly reduce the product development cycle time. 3. CNC machine tools high precision machining automation degree is very enough, greatly reducing the physical labor intensity of employees, employees in the production and processing process does not need to be like the general CNC lathe that the entire control, the purpose is to observe and monitor the lathe. But the corresponding CNC machining center technology content is higher than the general CNC lathe, and thus the relative general CNC lathe requires a higher level of mental labor. 4. Pre-project investment relative to the general CNC lathe to be large, because the price of CNC lathe is very high, and its maintenance costs and its production and manufacturing first preparation period is long.

How to ensure the processing quality of precision parts? Precision parts machining is a process of using machining machinery to change the overall dimensions or performance of precision parts. In the process of precision parts processing, the factory should not only ensure the quality, but also carefully maintain the external beauty and magnanimity. In order to better ensure that the precision parts are not corroded by sweat, gas and other components, they are always in the factory state and extend the service life. When parts are packaged after release, a separate sealed packaging method must be used. At the same time, gasoline or ethanol must be used for scrubbing. Gloves must be worn for work and drying, and then cotton wool shall be used for protection. In the processing of various mechanical parts, due to the deep groove, small overall width, small size tolerance range, the balance screw is difficult to process, difficult to process, easy to produce scratches, and difficult to process. To ensure the size. From the perspective of traditional processing technology, combined with the current measuring tools, the mold shell can be polished and grooved before processing; The balance screw and the die sleeve are processed at the same time, and there is a small gap between the die sleeve and the product workpiece, which not only improves the stiffness of the slotting, reduces the probability of deformation, but also makes the precision of the balance screw higher This standard refers to the points, lines and faces used to clarify the geometric correlation between the geometric factors of the manufacturing target. For machining of mechanical parts, the standard is to specify the points, lines and surfaces on which other points, lines and surfaces on the parts are based. In the design scheme and production process of equipment parts, the selection of points, lines and surfaces according to different provisions is one of the key factors that directly affect the machining performance of parts, the specifications between surfaces and the precision of parts. According to different functions and use places, standards can be divided into design scheme standards and processing technology standards.

According to precision machining manufacturers, there are many kinds of machinery, which can be divided into various types according to different levels, such as: transmission equipment, raw material delivery machinery, crushing equipment, etc. according to their functions; According to the industrial chain of service projects, it can be divided into agricultural machinery, mining machinery, textile machinery, packaging machinery, etc; According to the principle, it can be divided into thermal machinery, fluid machinery, bionic machinery, etc. The specific products of China's machinery industry include the following 12 categories: 1. Agricultural machinery: tractors, seeders, seed harvesting machinery, etc; 2. Heavy mining machinery: metallurgical equipment, mining machinery, lifting equipment, handling machinery, industrial and mining enterprise vehicles, cement equipment, etc; 3. Construction machinery: electric forklift, earth moving machinery, tamping machinery, construction machinery, etc; 4. General petrochemical machinery: crude oil drilling and production machinery, refinery machinery, chemical machinery, pumps, fans, gate valves, gas compressors, refrigeration machinery, paper making equipment, printing equipment, plastic granulation machinery, pharmaceutical equipment, etc; 5. Electrical machinery: power generation machinery, transformers, high and low voltage switches, cables and wires, batteries, DC welding machines, electrical products, etc; 6. Machine tools: metal drilling machines, forging equipment, forging machinery, woodworking equipment, etc; Precision machining manufacturer 7. Automobile: truck, road passenger vehicle, car, car modification, motorcycle, etc; 8. Instruments and meters: automation instruments, welder instruments and meters, optical equipment, composition analyzer, automobile instruments and meters, electrical materials and weapons equipment, audio-visual equipment, digital cameras, etc; 9. Basic machinery: rolling bearings, hydraulic fittings, hydraulic seals, powder metallurgy products, standard parts, industrial production drive chains, drive gears, mold shells, etc; 10. Packaging machinery: packaging machine, packing machine, belt conveyor, etc; 11. Environmental protection machinery: water pollution control machinery and equipment, environmental pollution prevention machinery and equipment, solid waste treatment equipment, etc; 12. Mining machinery: rock disintegrator, rock jacking machine, etc.

Analyzing the programming points of CNC precision machining for dies In general, CNC machining generally refers to precision machining controlled by computer digitization, CNC machining lathe, CNC machining milling machine, CNC machining boring milling machine, etc. (1) For cnc precision machining dies, we should review the work before programming, that is, we should make a comprehensive analysis of the die structure and work out the processing and production plan; In case of design change due to mold maintenance, timely review the mold and modify the production schedule. (2) Before programming, the factors of parts shall be considered comprehensively. Several processing methods and paths shall be selected first, and then the program shall be compiled. Then, the program shall be modified according to the CNC precision processing method to ensure that there will be no tool collision, missing processing procedures, etc. during the tool path; In the process of finishing, such as the core and cavity of the mechanical mold, the specific processing number of the rough machining must be comprehensively considered. The parts that can be milled out in the rough machining process must be milled out, and the parts that cannot be milled out by the gantry milling machine must be widened as much as possible to the required value. During finishing, the feed amount and direction of the tool must be strictly controlled. The best result is to use the shortest time to process the highest quality mechanical mold. Finally, NC simulation software shall be used to simulate and verify the feasibility of the tool path before the programming is completed and the machine collision accident caused by human factors in programming shall be prevented. For high-speed machining tools, if conditions permit, NCBRAIN software can be used for optimization, which can greatly reduce the machining efficiency and improve the tool life. (3) During and after the processing, the inspection and sorting shall be done well. Lifei Company shall check the processing progress and quality at all times during the processing. Once it finds that there are too many empty tools, large work-piece allowance, wrong tools, tool spring, tool deformation, etc., it must be reported in time to ensure that the programming modification can be carried out in a timely and effective manner and reduce the waste of materials; After processing, strictly check and measure the parameters, missed work and errors of the workpiece, and then report to the superior to ensure that the CNC precision machining accuracy is within a reasonable range. Finally, these data should be recorded and a workpiece processing database should be established to facilitate future inspection, comparison and experience summary.

Precise electronic parts are manufactured on a vacuum machine by an intelligent machine tool controlled by a computer. What are the requirements for precision parts processing? First of all, what is precision parts processing? In fact, it is a kind of processing. But more precisely, the production machinery and process requirements are relatively high. With the development of industrialization, the classification of precision machining is more and more, the direction is more and more refined, and the degree of specialization is higher and higher. Therefore, precision machinery will be integrated more and more in the future. This is not the initial simple processing. Its combination with high-tech has played its role, especially the digitalization of processing has made a qualitative leap in its development process. It will become an important science in the future and serve the development of industry. Precision machine parts are composed of many different small parts, and each part plays a very important role. Parts need to be assembled, so precision machine parts manufacturers will re process according to these requirements. After processing various parts, we can find more suitable parts for ourselves. Therefore, in order to make these products better serve themselves, many people are indispensable in precision machining. To ensure the machining accuracy of precision parts, rough and fine mechanical parts shall be machined separately. Due to large cutting amount, large cutting force, large clamping force, heating, and obvious hardening of machined surface of rough machined parts, the internal stress of the workpiece is large. If the rough and coarse parts are machined continuously, the precision of the finished parts will drop rapidly due to the redistribution of stress. In the processing of precision parts, there is often a heat treatment process. The location of heat treatment process is arranged as follows: in order to improve the cutting performance of metal, such as annealing, normalizing, tempering, etc., it is generally arranged before the machining of mechanical parts. The processing flow of precision parts is very strict, and the feed and output rings are fastened. Mastering dimensional accuracy can reduce material loss and cost. For example, when the size is wrong, if the size is wrong, the part cannot be used.

How to Solve the Problem of Intelligent Talents in Precision Parts Processing With the continuous acceleration and deepening of the application of artificial intelligence, the competition of CNC processing plants is becoming increasingly fierce. Many precision machining enterprises, in order to stand out in the competition, are competing in intelligent processing layout. Although China's artificial intelligence has risen to the national strategic height, the shortage of intelligent precision machining talents is seriously restricting the development of the entire precision parts industry. According to precision parts processing experts, at present, the total number of AI talent reserves in China is only about 50000, accounting for only 5% of the world, and the gap is 5 million. If you inquire about the recruitment needs of the precision machining industry, all the relevant posts in the AI field are hiring, and no suitable candidates can be found for high salaries. 1: 10% of AI talent supply and demand has restricted the development of China's intelligent precision machining industry. This is the development status of China's precision parts processing industry. Due to the rapid development of intelligent precision machining industry, insufficient talent reserve and backward talent training, the vast number of CNC processing plants are deeply troubled by talent problems. Previously, although the major enterprises in the field of precision mechanical processing generally used the form of "poaching and robbing" to expand talents, this method was only a temporary method after all. In the long run, we still need to address both the symptoms and root causes. Accelerating talent training is the ultimate solution. Otherwise, the gap will be further widened in the future.

Speed Control of CNC Precision Parts Processing How to control the speed of CNC precision parts processing? How much do you know? CNC processing is moving towards high-speed and efficient development. This includes the speed control of CNC machining. To make full use of the effective working stroke, the moving parts must be able to accelerate to the high speed stroke in a very short time and stop accurately in the high speed stroke. This is why it is necessary to control the speed of CNC machining. According to the open control idea, we propose a method that can automatically accelerate and decelerate the motion of CNC machine tools according to any curve. This method pushes the automatic acceleration and deceleration control from the traditional fixed mode to the new flexible mode, and explores a new way to effectively improve the dynamic performance of CNC machine tools. 1. Flexible acceleration and deceleration control In CNC machining, the specific automatic speed control function is usually directly realized by the system program. In this way, it is necessary to change the acceleration and deceleration characteristics of the system or modify the NC program by adding or subtracting control, so ordinary users cannot make the NC machine tool have the best acceleration and deceleration performance according to their own wishes. Therefore, the flexible acceleration and deceleration control method proposed by us adopts the principle of database, divides the acceleration and deceleration control into two parts: acceleration and deceleration description and implementation, and separates the acceleration and deceleration description from the system program. In the NC system software, a general control channel independent of the acceleration and deceleration database content is designed to independently complete the acceleration and deceleration calculation and trajectory control. 2. Flexible automatic acceleration control Set the acceleration curve, analytical curve and non analytical curve, and store them as templates in the acceleration and deceleration curve library in the form of a number table. 3. Flexible automatic deceleration control The acceleration control is also stored in the acceleration and deceleration curve library as a template in the form of a number table. Reasonable automatic acceleration and deceleration control is an important link to ensure the dynamic performance of CNC machine tools. The traditional automatic acceleration and deceleration control based on fixed curve is not easy to ensure that the acceleration and deceleration process are compatible with the machine tool performance due to the lack of flexibility, and it is difficult to achieve the best dynamic characteristics of the machine tool movement.

What are the rust removal methods for CNC precision parts processing CNC precision parts processing or parts when bearing, etc. will cause embrittlement due to improper storage conditions or rust prevention, which can hardly be treated mechanically, while chemical pickling will damage the precision of parts. On the basis of years of processing experience, Haishuoda Technology has summarized some rust removal methods, which will not damage the workpiece, change the parts or be corroded. Rework or repair high-precision parts. Due to improper storage or transportation during processing of CNC precision parts, floating rust is generated on the surface of parts. Corin-306 can perfectly remove floating rust and ensure the original accuracy; 1、 Soak cleaning process 1 CNC precision parts processing adds professional cleaning solution to the tank (it is better to use plastic or stainless steel tank to reduce the iron ion penetration into the solution and reduce the service life); 2 Use an electric heater to heat to 40-50 ℃ and keep it at normal temperature, which can only be extended; 3 Immerse the hardware processing parts into the tank; 4 If the efficiency needs to be further improved, the circulating pump can be added to stir the tank liquid; 5 Take out the workpiece after all the rust is dissolved, and rinse it with water-based rust inhibitor; Cnc precision parts processing 6 Natural drying or drying after rinsing, or direct dehydration and rust prevention; 7 If necessary, conduct comprehensive rust prevention and transfer to the next process. 2、 Wiping and cleaning process 1. Wipe repeatedly with a rag, which is suitable for cleaning and derusting large equipment or workpieces; 2 After wiping, dry it with hot air or natural drying, and then apply anti rust oil.

What errors will occur in cnc machining? cnc machining is the use of computer digitization and information digitization technology to control the movement and processing of machine tools. The device is a high-speed, reliable, multi-functional, intelligent and open intelligent universal pneumatic numerical control system. Cnc processing is also an important indicator to measure a country's scientific and technological development level and comprehensive national strength, as well as the modernization of information technology. It plays an immeasurable role in high-tech industries such as aviation, biology and medicine, and is a concentrated reflection of national strength. Therefore, improving the technical level is an important way to improve the comprehensive national strength and national status. So, what errors will occur in cnc machining? Let's take a look: The principle error of cnc machining is mainly due to the approximate machining motion or tool profile. Why is it called machining principle error? It is because there are mistakes in principle. This method is feasible under the condition that the principle error does not exceed the allowable range. In the process of use, manufacturing error, installation error and wear directly affect the machining accuracy of the workpiece. These errors include the rotary motion of the machine tool spindle, the linear motion of the machine tool guide rail and the error of the machine tool transmission chain. The manufacturing error, installation error and wear of cnc machine tools have a great impact on the machining accuracy of the workpiece. In the cutting process, the cutting edge, cutting surface, workpiece and chip have strong friction, which leads to tool wear. When the tool wear reaches a certain value, the workpiece surface roughness increases, the chip color and shape change, and accompanied by vibration. Tool wear directly affects cutting productivity, machining quality and cost. Cnc machining fixture error mainly includes positioning error, clamping error, fixture installation error and tool installation error. The error is mainly related to the machining and assembly accuracy of the fixture. The positioning error in cnc machining mainly includes the error in the error reference and the manufacturing of the error positioning pair. When machining the workpiece, several geometric feature points on the workpiece shall be selected as the positioning reference to determine the machining position. If the selected positioning datum is inconsistent with the design datum, the datum uncorrected error will occur. The positioning surface and the fixture positioning element form a positioning pair. In the process of machining, due to the inaccurate machining of the positioning pair and the fit clearance between the positioning pairs, the position of the workpiece changes greatly, which is the machining error of the positioning pair. When using the adjustment method, the manufacturing error of the positioning pair only appears in the adjustment method, not in the trial cutting process.