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

There are various ways of precision machining, such as heat treatment methods. A part, which refers to an indivisible individual part of a machine, is a basic component of a machine and a basic unit in the mechanical manufacturing process. Its manufacturing process generally does not require assembly processes. Such as bushings, shingles, nuts, crankshafts, blades, gears, cams, connecting rod bodies, connecting rod heads, etc. CNC machine tools in the batch processing of precision mechanical parts, especially to pay attention to the accuracy of processing, then precision mechanical processing should pay attention to what issues?   First batch of parts processing accuracy is poor, generally due to the installation and adjustment, the feed dynamic between the axes according to the error is not adjusted, or due to the use of wear and tear, the machine tool each axis drive chain has changed. Can be re-adjusted and modify the amount of clearance compensation to solve. When the dynamic tracking error is too large and alarm, you can check: whether the servo motor speed is too high. Position detection element is good. Whether the position feedback cable connector is in good contact. Whether the corresponding analog output latch and gain potentiometer are good. The corresponding servo drive device is normal. Second, the machine tool movement overshoot caused by poor processing accuracy, may be acceleration and deceleration time is too short, can be appropriate to extend the speed change time. May also be a loose connection between the servo motor and the screw or rigidity is too poor, can be appropriate to reduce the position of the ring gain.   Third, the roundness of the two axes linkage is too poor. Axial deformation of the circle: This deformation may be caused by the machinery is not well adjusted. Poor positioning accuracy of the axis or improper compensation of the screw gap can lead to circularity error when over quadrant. Oblique ellipse error: In this case, the position deviation value of each axis should be checked first. If the deviation is too large, the position ring gain can be adjusted to eliminate it. Then check whether the interface board of rotary transformer or induction synchronizer is well adjusted, and then check whether the mechanical drive vice clearance is too large and whether the clearance compensation is appropriate.

For the processing of parts, precision is a major requirement. Of course, in addition to this, there is also the surface roughness of the workpiece processed by automated parts, which can also be called smoothness. Generally, the surface roughness of precision machined parts is required to be relatively high, so how can we control the surface roughness of automated parts during processing? Kunshan CNC Processing Kunshan BJL Precision Electronics Co., Ltd. reminds you: 1. Different selection of raw materials: mechanical equipment parts are composed of many different raw materials. According to the different density of raw materials, the selection of cutting tools and machine tools during automatic parts processing is directly related to the surface roughness. For the processing of parts, precision is a major requirement. Of course, in addition to this, there is also the surface roughness of the workpiece processed by automated parts, which can also be called smoothness. Generally, the surface roughness of precision machined parts is required to be relatively high, so how can we control the surface roughness of automated parts during processing? Today, I will teach you some tips: 1. The selection of raw materials is different: mechanical equipment parts are made of many different raw materials. According to the density of raw materials, the selection of tools and machine tools in the process of automatic parts processing is directly related to the surface roughness. 2. Selection of reasonable processing technology: in the process of automatic parts processing, the processing technology process is also very important. If the process flow is unreasonable, it may affect the processing quality and production power. Many automatic parts need finish requirements after rough machining and finish machining. 3. Control the machine tool oscillation: start from reducing the conflict and extrusion between the tool and the workpiece to sharpen the tool edge, add cutting fluid and conduct proper heat treatment for some work-piece materials with good toughness. 4. Select several parameters of the tool: from the several parameters of the processing tool, the auxiliary deflection angle can be appropriately reduced and the radius of the tool tip arc can be increased, and the polishing edge can be grinded when necessary. It makes the cutting process simple and reduces the surface roughness. 5. Cutting amount: It refers to the amount of cutting feed that can be properly reduced. In general, the smaller the scale service requirements of mechanical parts, the smaller the surface roughness value of mechanical parts, but there is no fixed functional relationship between them. The use of analogy requires sufficient reference materials, and various existing mechanical design manuals provide comprehensive materials and documents. 2. Selection of reasonable processing technology: in the process of automatic parts processing, the processing technology process is also very important. If the process flow is unreasonable, it may affect the processing quality and production power. Many automatic parts need finish requirements after rough machining and finish machining.   3. Control the machine tool oscillation: start from reducing the conflict and extrusion between the tool and the workpiece to sharpen the tool edge, add cutting fluid and conduct proper heat treatment for some work-piece materials with good toughness.   4. Select several parameters of the tool: from the several parameters of the processing tool, the auxiliary deflection angle can be appropriately reduced and the radius of the tool tip arc can be increased, and the polishing edge can be grinded when necessary. It makes the cutting process simple and reduces the surface roughness.   5. Cutting amount: It refers to the amount of cutting feed that can be properly reduced. In general, the smaller the scale service requirements of mechanical parts, the smaller the surface roughness value of mechanical parts, but there is no fixed functional relationship between them. The use of analogy requires sufficient reference materials, and various existing mechanical design manuals provide comprehensive materials and documents.

A kind of precision machining equipment often used in CNC machining centers. In the process of practical use, there will be some factors that affect its processing power. What are the details? The author will discuss in detail the factors that affect the NC processing power for you. In fact, the cutting power of CNC machining center will be affected by human factors, environmental factors and machine tool's own factors. The concavity and convexity of machining power of CNC machine tools are affected by many factors. The influencing factors are mainly reflected in the use level of CNC machine tools, tool operating frequency and settings, programming standards, machining process planning, etc. Let's talk about the impact of cutting quantity and tools in many factors on the processing of CNC machining centers. Numerical control processing of aluminum parts Reasonable cutting parameters can travel the power of CNC machining center. When the cutting speed travels 10 times and the feed speed travels 20 times, far beyond the traditional cutting forbidden zone, the cutting mechanism has changed. The results are as follows: the metal removal rate per unit power is 30% - 40%, the cutting force is reduced by 30%, the cutting life of the tool is 70%, the cutting heat left on the workpiece is greatly reduced, and the cutting oscillation is almost eliminated; The cutting process has taken a substantial leap. According to the current situation of CNC machining centers, increase the feed per tooth, travel productivity and tool life. The effect of the cutter on the CNC machining center is similar to that of the wheel on the car. It is necessary that the materials for making tools have high high temperature hardness and wear resistance, necessary bending strength, impact toughness, chemical laziness, excellent processability (cutting, forging, heat treatment, etc.), and are not easy to deform. A good tool can travel the power of processing and the precision of the workpiece to be cut. Other factors such as power supply, operation understanding, reasonable material use and other factors will affect the processing efficiency of CNC machining centers. In conclusion, there are many factors that affect the processing power and product quality, which are often the result of inductive effect. It is not just a simple change to a certain element CNC processing that can complete the journey of processing power and quality. In the process of practical processing, it is necessary to constantly improve the processing methods, and use new technologies, new processes and new materials to achieve higher processing quality and processing power.

The application of numerical control walking meters can now be said to be relatively extensive. Compared with conventional numerical control cnc machining tools, the main reason why they are welcomed by us is that they have the outstanding advantages of composite processing in the process of application, can produce more products in a shorter time, and the accuracy and quality of production are also guaranteed. What advantages does the processing of numerical control walking meters bring? CNC processing factory In the process of application, the CNC walking meter can greatly shorten the supply chain of product processing and manufacturing, so it means that the production and processing time is shortened, and the overall processing and production power is improved. In the process of processing and production, most of the processing procedures can be completed at one time, which can not only save the overall production CNC processing time, but also greatly shorten the production assistance time caused by card loading, The waiting time for processing and production also began to decrease, significantly improving the output power, and the functional quality of production will be better guaranteed. The time of application of the numerical control cardiometer not only improves the processing accuracy, but also ensures that it is very safe and fast in the process of operation. Any staff can operate it after a brief understanding. Moreover, the numerical control center gauge can not only improve the processing accuracy of the product, but also control the accuracy very stably. Because the machine tool has good controllability, it will have better safety assurance in terms of operation, so we can bring him a better experience in the selection process with the CNC walking meter It is true that the CNC tracking meter can bring many advantages to the processing and production, and can greatly reduce the cost of processing and production. The input on labor and production of raw materials and the floor area of the machine tool will be reduced, and the overall equipment maintenance cost will be reduced. Therefore, the use of numerical control strategy can not only reduce the fixed asset investment of enterprises and manufacturers, but also better control the cost of production operation, which can bring about better operation, production and profit.

A few points for attention in the processing and grinding of small batches of non-standard parts are as follows: let's take a look at the manufacturers of small batches of non-standard parts. 1. The abrasive grain size used for processing and grinding small batch of non-standard parts shall be changed from coarse to fine. When replacing the abrasive, the grinding trace of the previous process should be completely removed, and the grinding should be stopped until only the grinding trace of this time can be seen. It is very important to avoid the phenomenon of "embossing". 2. The same abrasive can only be used in the processing of small batches of non-standard parts with the same abrasive size. Before each particle size conversion, the workpiece must be completely cleaned once to prevent the coarser abrasive particles or other dirt from being brought to the next process to form scratches on the grinding surface. 3. During the processing of small batch of non-standard parts, each time when the next grain size is converted, the grinding shall be conducted at an angle of 30-45 ° with the last grinding direction. If there is a deep scar, it is not allowed to grind this part only, otherwise this part will be pitted. It is required to conduct a comprehensive repair to remove the pit. For the stations that are easy to grind and those that are not easy to grind, attention should be paid to uniform grinding. The above articles are shared by small batch non-standard parts processing manufacturers today. Do you understand them?  

Problems caused by improper organization of cnc processing technology Cnc processing equipment has high power and good quality, but if the process planning is not properly organized, it can not show its advantages. From the experience of some CNC processing plants, there are some problems as follows: 1. CNC processing procedure is too lax The reason for this problem lies in the fear of complexity (referring to the time of preparation), the simplicity of programming, the simplification of operation and processing, the ease of adjusting the tool setting when using a knife, and the habit of ordinary processing. In this way, it is difficult to ensure the product quality (orientation tolerance), and the production power cannot be used well. Therefore, CNC processing technologists and operators should be fully familiar with the common sense of NC processing, test more to grasp the relevant common sense, and use the method of process convergence as much as possible for processing, which will naturally show its advantages. After the adoption of process assembly, the unit processing time increases. We have arranged two equipment face to face, realizing one person to operate two equipment, greatly improving the power and ensuring the quality. 2. Unreasonable CNC machining sequence Considering some problems in preparation, some cnc operators often organize the processing sequence unreasonably. NC machining is usually carried out according to the requirements of general machining process planning, such as rough machining before fine machining (tool change), inside machining before outside machining, reasonable selection of cutting parameters, etc. In this way, the quality and power can be improved. Careful use of G00 (G26, G27, G29) fast positioning instruction G00 instruction brings great convenience to programming and application. However, if the setting and application are improper, it will often lead to negative consequences such as overshoot when returning to zero, precision decline, and equipment guide rail surface strain due to excessive speed setting. Failure to pay attention to the zero return road may lead to collision of workpieces and equipment. Therefore, when considering the application of G00 instruction, it should be considered comprehensively and not arbitrarily. In NC machining, it is particularly important to strengthen program retrieval and trial run. After the program is input into the control system, the operator shall use the SCH key and ↑, ↓, ←, → mobile keys to perform uncertain and deterministic retrieval, and correct the program if necessary to ensure the accuracy of the program. At the same time, before the procedure processing is formally performed, the procedure test run (turn over the power amplifier) must be carried out to confirm whether the processing road is the same as the planned road.

Shenzhen Perfcet Precision Products Co., Ltd. is a medium-sized processing enterprise integrating the design and production of precision mechanical parts, specializing in the processing services of CNC lathes, automatic lathes, CNC machining centers, precision hardware products and equipment accessories. The products comply with the international environmental protection standards (RoHS). The company has advanced processing equipment and international advanced testing equipment to ensure the accuracy and quality of products. Main equipment and processing scope of the company: High precision CNC lathe is used for batch production of high-precision electronic instruments and meters, communications, electrical appliances, military, aerospace, medical equipment, auto parts, die castings and Its precision machining (tolerance can be controlled within 0.01); Automatic lathe, used for precision processing of stainless steel, copper, iron, aluminum and other materials precision hardware parts; CNC machining center is used for precision production of molds, complex parts, etc. As a professional parts CNC processing enterprise, we always pay attention to the quality of products. The company has developed an effective quality management system, strictly follows the "three no" principle of "no manufacturing, no acceptance, and no delivery of unqualified products", adopts the 8D approach to problem analysis and solution, provides 100% product quality assurance, and provides customers with high-quality products. With its strong technical force, complete production equipment, advanced production technology, supporting testing equipment and standardized management system, the company has accumulated a lot and continuously expanded its business. Now it has a group of very stable customers.  

PMMA (Acrylic), transparent ABS, transparent PC and other materials are generally used to make transparent hand model. Handboards made of these materials have high transparency through polishing to achieve the same effect as real products. POM or PA can be used to make wear-resistant hand model. The two materials need to be processed as a whole. High toughness hand model can be made with PA or PP. The two materials need to be processed as a whole. High temperature resistant hand board model can be made of epoxy resin; Bakelite; Black PC; Except that black PC can be bonded, the other four materials such as PA (nylon) need to be processed as a whole. ABS material is the most common material used for making conventional hand model, which is easy to process and beautiful for post processing. The surface treatment of plastic hand model is generally divided into oil injection, electroplating, sanding, silk screen and other post-treatment effects  

Mechanical processing mainly includes manual processing and numerical control processing. Manual processing refers to the method of processing various materials through manual operation of mechanical equipment such as milling machine, lathe, drilling machine and sawing machine. Manual processing is suitable for small batch and simple parts production. Numerical control machining (CNC) refers to the use of CNC equipment by machinists for machining, which includes machining bases, turning and milling bases, WEDM equipment, thread cutting machines, etc. The vast majority of machining workshops use CNC machining technology. After programming, the azimuth coordinates (X, Y, Z) of the workpiece in the Cartesian coordinate system are converted into program language. The CNC controller of the numerical control machine tool controls the axis of the numerical control machine tool by identifying the width and interpreting the program language, and takes the initiative to remove the data as required, and then obtains the precision workpiece. NC machining processes workpieces in a continuous way, which is suitable for large quantities of parts with disordered shapes.  

The production process of the machine refers to the whole process of making products from raw materials (or semi-finished products). For machine production, it includes transportation and storage of raw materials, preparation for production, manufacturing of blanks, processing and heat treatment of parts, assembly and commissioning of products, painting and packaging, etc. The content of production process is very extensive. Modern enterprises use the principles and methods of system engineering to organize production and guide production, and regard the production process as a production system with input and output. In the production process, the process of changing the shape, size, location and nature of the production object to make it a finished or semi-finished product is called a process. It is an important part of the production process. The technological process can also be divided into casting, forging, stamping, welding, machining, assembly and other technological processes. The mechanical manufacturing technological process generally refers to the sum of the machining technological process of parts and the assembly technological process of machines. Other processes are called auxiliary processes, such as transportation, storage, power supply, equipment maintenance, etc. The technological process is composed of one or several sequential processes, and one process is composed of several work steps. Working procedure is the basic unit of Shanghai machining process. The so-called process refers to the part of the process that a worker (or a group of workers) completes continuously for the same workpiece (or several workpieces at the same time) on a machine tool (or a work site). The main feature of forming a process is that the processing object, equipment and operator are not changed, and the content of the process is completed continuously. The working step is under the condition that the machining surface, the machining tools and the cutting parameters remain unchanged Tool feed is also called work stroke, which is a step completed by a machining tool when machining a surface. To formulate the machining process in Shanghai, it is necessary to determine how many processes the workpiece will go through and the sequence of the processes. A brief process that only lists the names of the main processes and their processing sequences is called the process route. The preparation of the process route is to formulate the overall layout of the process. The main task is to select the processing method of each surface, determine the processing sequence of each surface, and determine the number of processes in the entire process. The process route must follow certain principles.