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

In industry, there are too many products, is that you have been indistinguishable, also see the dazzling, already can not distinguish which is which, it is easy for people to confuse, they have the same name, or the same shape, the difference between parts and components is reflected in which places, the following let non-standard parts processing of the editor to tell you about. 1、Membership ① Definition: objects that can do relative motion between each other. It is the unit of motion. A component can be a single whole that can not be disassembled, such as gears; can also be a rigid body composed of objects that can not do relative motion between each other. Such as the lathe tool holder; chuck. ② Classification Fixed components: components used to support the movement. Such as: bed components Motion components (also divided into active and passive components): Active components: components with known motion rules Slave member: the member that moves with the active member. 2、Parts ①Definition: objects that cannot make relative motion with each other. The difference between components and parts. Component is a unit of motion; part is a unit of processing and manufacturing. Contact: components are composed of parts. For example: connecting rod components are composed of connecting rod body, connecting rod cover, bolts and nuts and other parts.

With the development of industrial technology, our processing industry, in industry, enjoy a certain status, it is because of the good work done, will lead to such a success, precision parts processing is one of them, then the types of mechanical parts processing process is which kinds? Car (vertical turning, horizontal turning): the main characteristic is to process the rotary body. Milling (vertical milling, horizontal milling): the main feature is the processing of grooves and profile straight surface, of course, can also be two-axis or three-axis linkage processing arc surface. Planing: the main characteristic is to process the straight surface of the shape, in general, the surface roughness is not as high as the milling machine.   Insert: It can be understood as a stand-up planer, which is ideal for non-complete circular arc processing. Grinding (plane grinding, external grinding, internal hole grinding, tool grinding, etc.) processing of high-precision surfaces. Drilling: The processing of holes. Boring: the processing of larger diameter, higher precision holes, the processing of larger workpiece shape. The above is the type of mechanical parts processing process is which kinds, from the above text, we can see that it is also a variety of processes, to use a variety of machines, to process, which is the benefit of processing

With the continuous development of industrial technology, our processing technology has become better and better, it is because of the emergence of processing technology, our industry, become convenient and convenient, precision hardware and mechanical parts processing is one of them, so what is precision hardware and mechanical parts processing is what comes. What is precision hardware mechanical parts processing, according to the literal meaning of the words: that is, very precise mechanical parts processing, precision mechanical parts processing is a kind of machining, but it is in the processing error requirements are higher, and in the processing process requirements are more stringent, with the development of modern industry and demand for continuous change, precision machining has been the development of many aspects, it is the direction of development More and more extensive, the direction is more and more fine, the direction of development is more and more present its specialization, with the development of science and technology its technology is constantly improving, the quality and accuracy of processing is also getting higher and higher. Technology and economic development also tightly grasp the direction of the development of precision machining.  

A thing inside, are its classification, classification is just to make people more good choice, in the selection of time, can be for customers and businesses, a better choice, mechanical parts is one of them, then the classification of mechanical parts is what kinds of classification, the following let precision parts processing of the editor to tell you about. Mechanical parts are composed of a number of surfaces, the study of the relative relationship between the surface of the parts, must determine a benchmark, the benchmark is used to determine the location of other points, lines, surfaces based on the points, lines, surfaces. According to the different functions of the benchmark, the benchmark can be divided into two categories of design benchmarks and process benchmarks. 1 design benchmark In the parts diagram to determine the location of other points, lines, surfaces of the benchmark, known as the design benchmark. As shown in Figure 32-2 [cc2] sleeve parts, the outer circle and bore design benchmark is the axis of the part, end face A is the end face B, C design benchmark, the axis of the bore is the radial runout of the outer circle benchmark.   2. Process benchmark Parts in the processing and assembly process used in the benchmark, known as the process benchmark. Process benchmark according to the different uses are divided into assembly benchmark, measurement benchmark and positioning benchmark.

Want to process a high quality product, we must look at your processing methods, and processing materials, and processing equipment, whether the appropriate processing, these are a great reason, non-standard parts processing is not only, then how to produce and process high-quality non-standard parts. In order to process a qualified part, the thickness of the layer of metal that must be cut from the blank, known as the machining margin. Machining margin can be divided into process margin and total margin. The thickness of the layer of metal that needs to be removed in a process is called the machining allowance of the process. The total amount of metal that needs to be removed from the blank to the scrap is called the total margin, which is equal to the sum of the margins of each process for the corresponding appearance.   The purpose of leaving machining allowance on the workpiece is to remove the machining errors and appearance defects left by the previous process, such as cold hard layer, porosity, sand trap layer on the appearance of castings, oxide skin, decarburization layer, cracks on the appearance of forgings, internal stress layer and appearance roughness after cutting. So as to improve the accuracy and appearance roughness of the workpiece. The size of the machining allowance has a large impact on the processing quality and consumption efficiency. The machining allowance is too large, not only increases the amount of machining labor, reducing the consumption rate, and increases the material, tools and power consumption, and improve the processing costs. If the machining allowance is too small, it can not eliminate the various defects and errors in the previous process, but also can not compensate for the clamping errors in the processing of the process, the formation of scrap. The selection criterion is to ensure the quality of the premise, so that the margin as small as possible. Generally speaking, the more the finishing process, the smaller the process margin.

In the processing industry, businessmen will be processing products, but not everything, can be processed, we have to understand first, we can do, so what are the parts that can be processed by precision parts processing? Are there many. 1.machinery and equipment, industrial automation equipment into sets of parts processing. Such as: metal parts, panels, cabinets into a complete set of machine processing, appearance disposal. 2. Single non-standard mechanical parts processing. Such as: a variety of precision parts processing copper, iron, aluminum, stainless steel, 45 #, CR12, acrylic plate, steel, bakelite parts, aluminum profiles, ABS, POM nylon parts and other common materials processing of various specifications (non-standard spare parts processing, non-standard mechanical parts, active machine parts, various hardware processing, non-standard parts processing, active mechanical parts processing). 3. Batch precision parts processing. Such as: CNC lathe processing, CNC computer gong processing, active lathe processing. Processing equipment: ordinary lathe, active lathe, CNC lathe, CNC milling machine, CNC lathe-milling machine (centering meter), grinding machine, computer gong (machining center), tapping machine, punching machine and other supporting processing equipment.

Not all materials for precision parts processing can be precisely processed. Some materials are too hard, which exceeds the hardness of the processing machine, and may break the machine. Therefore, these materials are not suitable for precision machining, unless they are made of special materials or laser cutting. Materials for precision parts processing are divided into two categories, metal materials and non-metallic materials. For general metal materials, the hardness of stainless steel is the largest, followed by cast iron, followed by copper, and finally aluminum. The processing of ceramics and plastics belongs to the processing of non-metallic materials. 1. The first is the requirements for material hardness. For some occasions, the higher the hardness of the material, the better. It is only limited to the hardness requirements of the machined parts. The machined materials should not be too hard. If they are harder than the machined parts, they will be unable to be machined. 2. Secondly, the material is moderate in hardness and softness, at least one grade lower than the hardness of the parts. At the same time, it depends on the role of the processed components and the reasonable selection of materials for the parts. Precision parts processing In a word, there are some requirements for materials in precision machining. Not all materials are suitable for machining, such as too soft or too hard materials. The former is not necessary for machining, while the latter cannot. Therefore, the most basic thing is to pay attention to the density of the material before processing. If the density is too large, it is equivalent to a large hardness. If the hardness exceeds the hardness of the machine parts (lathe tool), it is impossible to process. It will not only damage the parts, but also cause danger, such as the tool flying out and hurting people. Therefore, generally speaking, for mechanical processing, the material should be lower than the hardness of the machine tool, so that it can be processed.

Precision mechanical parts processing is generally aimed at the parts of precision mechanical equipment, which requires very high precision. Therefore, in addition to understanding the specific requirements for materials and common skills of precision mechanical parts processing, we should also know what steps are involved in the processing of precision mechanical parts, Let's share with you the five stages of precision machinery parts processing. 1. Rough machining The main consideration is to improve productivity. Most of the machining allowance of each machining surface is removed, and the precision datum is machined. 2. Semi finishing It mainly refers to the removal of defects that may occur after rough machining, and the processing of secondary surfaces. A certain machining accuracy must be achieved to prepare for the finishing stage and ensure proper finishing allowance. 3. Finishing In the finishing stage, large cutting speed, small feed rate and cutting depth are mainly used to cut off the machining allowance left by semi finishing to make the surface of precision mechanical parts meet the technical requirements of drawings. 4. Finishing It is mainly used to reduce the surface roughness or strengthen the machined surface. It is mainly used for surface processing with high requirements for surface roughness. 5. Ultra precision machining It mainly uses precision cutting, precision mirror grinding, precision grinding, polishing and other processing methods to make the machining accuracy of the workpiece within 0.1-0.01 μ m. Surface roughness value ra ≤ 0.001 μ m。 summary The five stages of precision mechanical parts processing are from coarse to fine and gradually refined. After these five stages of processing, the precision of mechanical parts can meet the requirements of customers. Weituo Precision Machinery focuses on the processing and manufacturing of precision machinery parts. It can process according to the drawings and materials required by customers to produce precision machinery parts that customers are satisfied with.

In the process of non-standard precision mechanical parts processing and production in a large mechanical processing plant, although there are many small skills that are inconspicuous, if you can know and master these small skills, you will get twice the result with half the effort! Now let's introduce some commonly used tips in the processing of non-standard precision mechanical parts to let us know: Tip 1: Dismantle the vice jaw and machine two M4 threaded holes, flush two 1.5mm thick steel plates with the jaw, rivet 0.8mm thick hard brass plates with aluminum rivets, and fix them on the jaw with M4 countersunk screws to form a durable soft jaw. This can protect precision mechanical parts from being pinched. Tip 2: It is inconvenient to use magnets to absorb small precision mechanical parts. It can absorb an iron plate under the magnet. It can not only absorb many small precision mechanical parts, but also pull the iron plate apart. Small precision mechanical parts will automatically fall into the collection box, which is very practical. Tip 3: In case of slipping between the pulley and the axle during the pulley drive, a series of grooves can be made on the axle with a ￠ 15~18mm drill bit, which can form an adsorption force to prevent slipping. Tip 4: Generally, the workpiece is positioned first and then clamped, but for some workpieces, clamping will cause deformation of the workpiece. Therefore, for such a workpiece, we must first clamp and then locate it, find 6 locating points, and find the degree of freedom limiting it. Large mechanical processing plants attach great importance to the quality and efficiency of non-standard precision mechanical parts processing. If they can improve the production efficiency more effectively without spending much human and financial resources, these tips are also very worthy of praise.

In the process of machining precision mechanical parts, the precision of parts has a great relationship with the process. What are the specific effects? In this chapter, we mainly discuss the influence of numerical control programming and geometric accuracy. Precise hardware processing cannot be separated from numerical control machine tools. Operators need to use numerical control programming to control the machine tools. Therefore, numerical control programming is particularly important and has a great influence on the precision of parts processing. It is mainly reflected in the following aspects. First of all, NC programming should determine the origin of programming. Whether the selection of the origin is appropriate affects the precision of precision hardware processing, which can avoid processing errors caused by size conversion. Secondly, the operator needs to do a good job of data processing in the programming system, which affects the accuracy of the contour track of precision parts. In addition, the node calculation of programming should be done well in this link, and then the correct processing route should be selected. Finally, the operator should choose an appropriate interpolation method to reduce the dislocation and movement of the machine tool when the number of pairs reaches a certain level, thus affecting the precision of precision hardware processing. In the process of parts processing, some work is manually completed by operators, such as cutting and grinding. This piece will inevitably have a certain degree of deviation, which will lead to geometric accuracy errors when machining precision mechanical parts. The accuracy of the tool will affect the accuracy of the part. When the tool is cutting, the tool face and blade will rub with the part. Over time, the tool will be worn to a certain extent. When the wear area is large, the friction value between the tool and the part will increase, and the vibration amplitude of the tool in the cutting work will increase, leading to changes in the cutting shape of precision hardware processing parts. In order to solve this problem, technicians need to improve the wear resistance and installation accuracy of tools. In the daily use process, strengthen the maintenance and repair of the cutter, and use the compensation device to compensate the worn parts. In addition, the machine tool is in a state of continuous operation during the processing of precision mechanical parts, and the spindle will have rotation errors in the long-term operation. When the spindle deviates from the standard axis, the relative position of the part processing will change, which will affect the flatness of the part surface, causing errors in the part accuracy. In order to solve the above problems, the operator should strictly implement the installation of the spindle of the machine tool, maintain the spindle in time during daily processing, and adjust its running position regularly.