cnc machining part service continues to be on the best seller list. Honscn Co.,Ltd knows clearly the importance of adherence to 'Quality Comes First', thus a team of professional technicians is introduced to ensure that the manufacturing sticks to international standards. Besides, the materials of the product are well selected, and are imported from different countries.
The super high sales rate shows that the overall strength and brand influence of HONSCN has gained wide acceptance of the national or even the international brands. Our brand has gained excellent world-of-mouth worldwide and our market influence has been immensely improved due to the strong insistence on our brand concept of innovation and integrity.
We enhance our service level by constantly improving the knowledge, skills, attitudes and behavior of our existing and new staff. We achieve these through better systems of recruitment, training, development, and motivation. Thus, our staff is well-trained in handling queries and complaints at Honscn. They have considerable expertise in product knowledge and the operations of internal systems.
Today's machining industry, traditional machining equipment has been unable to meet the quality needs. CNC machine tool equipment replaces ordinary machine tools, and automatic processing equipment such as precision CNC machining and CNC lathe processing replaces traditional machine tools. The following will take you to understand the advantages of CNC machining machine tools and the order of precision mechanical parts processing.
What are the advantages of CNC machine tools?
In the process of machining mechanical parts, CNC machining machine tools have the following advantages:
1.CNC machining center has high precision and high processing quality.CNC machine tools are renowned for their exceptional precision and accuracy. They use computer-controlled movements and specialized software to perform tasks with minimal error margins. Unlike human operators, CNC machines consistently reproduce identical parts to exact specifications.
2.CNC machining parts can be multi-coordinate linkage, can process complex shape parts.CNC machine tools offer remarkable flexibility and versatility compared to traditional manual machines. With the ability to change tooling and adapt to various operations quickly, they are ideal for manufacturing complex and intricate components.
3.CNC machining process change, generally only need to change the numerical control program, can save production preparation time.CNC machine tools offer remarkable time-saving benefits. Traditional manual machining methods are time-consuming and labor-intensive, requiring extensive set-up and constant manual adjustments. In contrast, CNC machines can be easily programmed to perform complex operations accurately, greatly reducing production lead times.And CNC machining machine tool itself has high precision, large rigidity, can choose a favorable processing amount, high productivity (generally 3 to 5 times of ordinary machine tools).
4.CNC machining belongs to CNC machining equipment, high degree of automation, can reduce labor intensity.Although the initial investment in CNC machine tools may be higher than manual machines, they offer substantial long-term cost savings. These machines reduce labor costs since they require fewer operators for operation and supervision. Moreover, CNC machines minimize material wastage by executing precision cuts and reducing human errors, leading to significant material savings.
5.Increased Productivity and Efficiency.One of the most significant advantages of CNC machine tools is their ability to increase productivity and efficiency. These machines can operate around the clock, minimizing production downtime and maximizing output. Once programmed, they can perform complex tasks with minimal supervision, freeing up manpower for other critical areas of production.
CNC machine tools have ushered in a new era of production efficiency, accuracy, and cost-effectiveness. With precision, productivity, flexibility, cost savings, time-saving advantages, and the right skillset, businesses can harness the full potential of CNC machines and stay ahead in the competitive manufacturing industry.
Then the order of precision machinery parts processing is divided into what kinds？
Each processing method has its processing sequence. Our operators need to process in accordance with its processing order, but not disorderly, so that it will have a certain impact on the processed products, or quality problems. Precision machining is one of them, then the order of precision mechanical parts processing is divided into what kinds.
The arrangement of fine parts processing should be based on the structure and blank situation of the parts, as well as the needs of positioning clamping, and the focus is on the rigidity of the workpiece is not destroyed.
- The processing of the previous process can not affect the positioning and clamping of the next process, and the processing process of general fine parts in the middle of the cross should also be considered comprehensively;
- Stop the inner cavity processing sequence first, and then stop the outer shape processing process;
- The process of processing with the same positioning, clamping method or the same knife is best connected and stopped to reduce the number of repeated positioning, the number of tool changes and the number of moving platen. Shenzhen Machining;
- In the same device to stop multiple processes, should be arranged first to the workpiece rigid damage process.
Tool concentration sorting method: It is divided into processes according to the tool used, and all the parts that can be completed with the same tool are processed. In the second knife, the third knife to complete the other parts they can complete. This can reduce the number of tool changes, shorten the idle time, reduce unnecessary positioning errors.
Processing parts sorting method: On the processing content of a lot of parts, according to its structural characteristics will be processed local dividends several parts, such as internal shape, shape, surface or plane. Ordinary first processing plane, positioning surface, after processing holes; First processing simple geometric shapes, then processing complex geometric shapes; The parts with lower precision are processed first, and then the parts with higher precision requirements are processed.
In short, the current precision machinery parts processing technology is very advanced, high quality and high production efficiency.
HONSCN Precision has 20 years of cnc machining experience. Specializing in cnc machining, hardware machinery parts processing, automation equipment parts processing. Robot parts processing, UAV parts processing, bicycle parts processing, medical parts processing, etc. It is one of the high-quality suppliers of cnc machining. At present, the company has hundreds of cnc machining centers, grinding machines, milling machines, high-quality high-precision testing equipment, to provide customers with precision and high-quality cnc spare parts processing services.
General steps of plastic parts designPlastic parts are designed on the basis of industrial modeling. First, see whether there are similar products for reference, and then carry out detailed functional decomposition of products and parts to determine the main process problems such as parts folding, wall thickness, demoulding slope, transition treatment between parts, connection treatment and strength treatment of parts.1. Similar reference
Before design, first look for similar products of the company and peers, what problems and deficiencies have occurred in the original products, and refer to the existing mature structure to avoid problematic structural forms.2. Determine the part discount, transition, connection and clearance treatment between partsUnderstand the modeling style from the modeling drawing and effect drawing, cooperate with the functional decomposition of the product, determine the number of parts (different surface states are either divided into different parts, or there must be over treatment between different surfaces), determine the over treatment between parts' surfaces, and determine the connection mode and fit clearance between parts.
3. Determination of part strength and connection strengthDetermine the wall thickness of the part body according to the product size. The strength of the part itself is determined by the wall thickness of the plastic part, the structural form (the plastic part in the shape of a flat plate has the worst strength), the stiffener and the stiffener. While determining the single strength of parts, the connection strength between parts must be determined. The methods to change the connection strength include: adding screw column, adding stop, adding buckle position and adding reinforcing bone against top and bottom.4. Determination of demoulding slope
The demoulding slope shall be comprehensively determined according to the material (PP, PE silica gel and rubber can be demoulded forcibly), surface state (the slope of decorative grain shall be greater than that of smooth surface, and the slope of etched surface shall be 0.5 degrees greater than that required by the template as far as possible, so as to ensure that the etched surface will not be damaged and improve the yield of products), transparency or not determines the demoulding slope of parts (the transparent slope shall be greater).Material types recommended by different product series of the companySurface treatment of plastic parts
Wall thickness selection of plastic partsFor plastic parts, the uniformity of wall thickness is required, and the workpiece with uneven wall thickness will have shrinkage traces. It is required that the ratio of stiffener to main wall thickness should be less than 0.4, and the maximum ratio should not exceed 0.6.Demoulding slope of plastic parts
In the construction of stereoscopic drawing, where the appearance and assembly are affected, the slope needs to be drawn, and the slope is generally not drawn for stiffeners.The demoulding slope of plastic parts is determined by the material, surface decoration status and whether the parts are transparent or not. The demoulding slope of hard plastic is greater than that of soft plastic. The higher the part, the deeper the hole, and the smaller the slope.Recommended demoulding slope for different materials
Numerical values of different accuracy in different size rangesDimensional accuracy of plastic partsGenerally, the accuracy of plastic parts is not high. In practical use, we mainly check the assembly dimensions, and mainly mark the overall dimensions, assembly dimensions and other dimensions that need to be controlled on the plan.
In practice, we mainly consider the consistency of dimensions. The edges of the upper and lower covers need to be aligned.Economic accuracy of different materialsNumerical values of different accuracy in different size ranges
Surface roughness of plastics1) The roughness of the etched surface cannot be marked. Where the plastic surface finish is particularly high, circle this range and mark the surface state as mirror.2) The surface of plastic parts is generally smooth and bright, and the surface roughness is generally ra2.5 0.2um.
3) The surface roughness of plastic mainly depends on the surface roughness of mold cavity. The surface roughness of mold is required to be one to two levels higher than that of plastic parts. The mold surface can reach ra0.05 by ultrasonic and electrolytic polishing.FilletThe fillet value of injection molding is determined by the adjacent wall thickness, generally 0.5 1.5 times of the wall thickness, but not less than 0.5mm.
The position of the parting surface shall be carefully selected. There is a fillet on the parting surface, and the fillet part shall be on the other side of the die. It is difficult to make, and there are fine trace lines at the fillet. However, fillet is required when anti cutting hand is required.Stiffener problemThe injection molding process is similar to the casting process. The non-uniformity of wall thickness will produce shrinkage defects. Generally, the wall thickness of reinforcement is 0.4 times of the main body thickness, and the maximum is no more than 0.6 times. The spacing between bars is greater than 4T, and the height of bars is less than 3T. In the method of improving the strength of parts, it is generally reinforced without increasing the wall thickness.
The reinforcement of the screw column shall be at least 1.0mm lower than the end face of the column, and the reinforcement shall be at least 1.0mm lower than the part surface or the parting surface.When multiple bars intersect, pay attention to the non-uniformity of wall thickness caused by the intersection.Design of stiffeners for plastic parts
Bearing surfacePlastic is easy to deform. In terms of positioning, it should be classified as the positioning of wool embryo. In terms of positioning area, it should be small. For example, the support of plane should be changed into small convex points and convex rings.Oblique roof and row position
The inclined top and row position move in the parting direction and perpendicular to the parting direction. The inclined top and row position shall be perpendicular to the parting direction, and there shall be sufficient movement space, as shown in the following figure:Treatment of plastic limit process problems1) Special treatment of wall thickness
For particularly large workpieces, such as the shell of toy cars, the wall thickness can be relatively thin by using the method of multi-point glue feeding. The local glue position of the column is thick, which is treated as shown in the following figure.Special treatment of wall thickness2) Treatment of small slope and vertical surface
The die surface has high dimensional accuracy, high surface finish, small demoulding resistance and small demoulding slope. In order to achieve this purpose, the parts with small inclination of the workpiece are inserted separately, and the inserts are processed by wire cutting and grinding, as shown in the figure below.To ensure that the side wall is vertical, the running position or inclined top is required. There is an interface line at the running position. In order to avoid obvious interface, the wiring is generally placed at the junction of fillet and large surface.Treatment of small slope and vertical surface
To ensure that the side wall is vertical, the running position or inclined top is required. There is an interface line at the running position. In order to avoid obvious interface, the wiring is generally placed at the junction of fillet and large surface.Problems often to be solved for plastic parts1) Transition processing problem
The accuracy of plastic parts is generally not high. There must be transition treatment between adjacent parts and different surfaces of the same part.Small grooves are generally used for transition between different surfaces of the same part, and small grooves and high-low staggered surfaces can be used between different parts, as shown in the figure.Surface over treatment
2) Clearance value of plastic partsParts are directly assembled without movement, generally 0.1mm;The seam is generally 0.15mm;
The minimum clearance between parts without contact is 0.3mm, generally 0.5mm.3) The common forms and clearance of plastic parts are shown in the figureCommon forms and clearance taking method of stop of plastic parts