Bearing quality Five major should pay attention to details

Bearing is a kind of important modern machinery and equipment parts.Its main function is to support the mechanical rotator, reduce the coefficient of friction in the process of the movement, and guarantee its rotation accuracy.So how to identify the quality of the bearing?
& have spent1, the seal character is clear
& have spentEvery product bearing on bearing products body printed with the brand, label, etc.Although the font is very small, but normal manufacturer production printing products are adopted the steel seal technology, and before without overheating treatment of words, so the font although small, but deep concave, very clear.And usually, counterfeit products of font instead of fuzzy, because of printing technology coarse, font float to the surface, some even can easily erase traces or manually by hand.
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bearing quality Five major should pay attention to details & have spent2, whether there is a complex ring
& have spentThe bearing body with his left hand, right hand small reciprocating toggle coat to make it spin, listen to bearing ring if there is a noise in the process of operation.Because most of the counterfeit product production conditions, operation, fully manual mill bearing the body in the process of production inevitably mixed into impurities, dust, sand and so on bearing rotation will be mixed ring or not smooth phenomenon.This is to determine whether a product from the production standard strictly, and use the brand of machine operation of formal manufacturers product key.
& have spent3, if there is a muddy surface soil
& have spentIf there is a muddy surface oil stains which need we should pay special attention to when buying imported bearings.Due to domestic antirust technology, there is still a gap with foreign advanced manufacturing countries, therefore the antirust processing was carried out on the bearing body and is easy to leave the thick oil stains, contact with the hand feeling sticky thick, and imported from abroad on the bearing of almost can’t see any sign of the anti-rust oil.According to the personage inside course of study introduces, particularly careful people can smell a special kind of imported bearing, this is the flavor of the anti-rust oil.
& have spent4, chamfering whether even
& have spentSo-called bearing chamfer, namely horizontal plane and vertical plane junction, fake bearing products because of the limitation of production technology in the area of the fringes is handled in guanzhou, as we can easily identify.
& have spent5, bearing
packaging & have spentFinished packing part and outer bearing in the manufacturing and after inspection, cleaning and antirust processing, then put into the inner packing, in order to achieve the waterproof, moisture-proof, dustproof, shock, maintenance quality and precision of the bearing and the purpose of convenient use and sell.Bearing the inner packing by antirust period is divided into three categories:
& have spentThe 1) short antirust period: rust phase 3 ~ 6 months, suitable for bulk shipments to the same subscriber, bearing will be put into use in the short term.By mutual agreement, with easy to use for the principle, the simple packaging.
& have spent(2) general antirust packing: antirust period for one year, suitable for general purpose bearings.
& have spentThe long antirust period: rust period of two years, is applicable to special and precision bearing.Bearing the inner packing material with polyethylene plastic tube (box), kraft paper, plain and wrinkles polyethylene composite paper, carton, PE or the PE plastic film, nylon fastening belt or woven plastic fastening belt, waterproof high strength plastic belt, sack, etc.The above materials are need to ensure that material corrosion resistance test.
& have spent(the original title: teach you how to identify the bearing quality) (source: China bearing industry network)

To develop new functional exploration nc machine tools Break through the aviation manufacturing bottleneck

Aviation manufacturing requirements nc machine tools have advanced, integrated, flexible, high precision and high stability.Numerical control system is the core of the nc machine tool, is the brain of a CNC machine.
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faster and more strong numerical control system makes the nc machine tool has more powerful computing and processing ability, able to complete more complex and elaborate processing.Composite function make the CNC machine significantly improve the machining efficiency of parts, mechanical processing and tend to be high precision, many varieties, small batch, low cost, short processing cycle and complicated.As nc machine tools is increasingly applied to the production of aviation parts, aerospace parts processing ability has been significantly improved, complex parts profile to be able to use digital processing is complete, and its using common equipment is difficult to machining.
& have spentAlthough parts processing capacity increased, but the application level of nc machine tool needs to be improved, both programming technology and processing technology, and many can be room for improvement.Numerical control machine tool the development of advanced features, improve the processing efficiency of CNC machine tool, and maximize the advantages of nc machine tools has become the biggest problem of the technical personnel.
& have spent1. CNC machine function development content
& have spentAviation manufacturing development of nc machine tool function includes the following several aspects:
& have spent(1) develop the hardware function of nc machine tool, such as a bit of damage detection function development, processing condition of blade length, radius and built-in automatic measurement function development.This kind of function development is for part of the nc machine tool not configured when introducing online measuring devices and other hardware facilities, is introducing advanced equipment production process, to improve the advantage in the production process.
& have spent(2) the operating system of the production process, introduced advanced instructions, further developing the advanced nature of numerical control processing.Develop high level instruction machine operating system, such as the rotation of the programmable zero offset, programmable (polyhedral machining), etc.
& have spent(3) the secondary development of high-level programming language, to further improve the advantage of nc machining.
& have spentIn programming has a specific function template with the help of advanced procedures, do regular calculation, to test the machine data, judgment, and simplify, optimization of machining process or in the process of machining mistake proofing function, belongs to the known system advanced statement module program, can have more specific solutions to the problems in the parts production.
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& have spent& have spent& have spent2. The problem of numerical control machine tool application typical & have spentCNC machine tool applications, often appear the programming efficiency and machining efficiency is low, the processing problem of error-prone process more representative include:
& have spent(1) CNC milling thread compiled nc program need to compute the parameters of the more, the programming process is relatively complex and error-prone, so the thread milling program is low efficiency and high error rate.
& have spent(2) with a uniform hole or uniform tank parts, processing each hole to perform repetitive nc program, the processing parts also need large allowance for repeated calls to the same nc program on different knife repairing value to remove allowance.
& have spentThis duplication larger amount of programming work, larger workload, low efficiency of programming.Repeat the knife on the workload of big, easy to get wrong.
& have spent(3) due to the limitation of certain numerical control machine tool coordinate axis stroke, will not be used when programming cycle mode, can only write point coordinates, low efficiency of programming and error-prone.
& have spent(4) in the process of machining tool breakage if not found in time, is likely to cause scrap parts.
& have spent(5) when the parts are processed using the contour programming mode, the operator need to input tool radius within the machine tool, the input of different radius, the cutting tool cutting trajectory is different also.Mistyped easy to cause the parts of the tool radius.
& have spent(6) CNC machining parts before need to establish a coordinate system, operators need to input the coordinate origin into machine tool, the operator input parameter error prone.
& have spent3. CNC machine function comprehensive development
& have spent(1) mistake proofing function development.By the operator to filter, prevent errors occur, the body of the means of this kind of mistake proofing is a person, in the process of actual operation mistake proofing effect and the human ability, and attention has a direct relationship, can’t achieve 100% mistake proofing.Adopts special technology to control the operating process, by computer control, meet the conditions of processing, then stop does not meet the conditions, basic can achieve 100% mistake proofing.Specific include:
& have spent1) bit damage detection function development.Can effectively detect tool wear in the machining process, cutting tool damaged will call the police, avoid tool out-of-tolerance continue to manufacture parts caused by damaged parts.
& have spent(2) vertical lathe, horizontal lathe knife to knife mistake proofing function development, establish the knife point inspection template respectively, and on the knife point inspection before processing, if there is no change point of the knife, the operator is suspended, can effectively avoid the parts in excess of the poor.
& have spent(3) the knife mistake proofing.Check the template, the tool radius are put to build the tool radius value for inspection prior to processing, if the input value of the radius of the suspension does not conform to the requirements, program, out-of-tolerance can effectively avoid the parts.
& have spent(4) G54 milling machining mistake proofing function and numerical control lathe machining G54 mistake proofing function development.The two coordinate system is set up respectively detection subroutine, the program runs before subroutine call detection, if the coordinate system is wrong the program and out-of-tolerance can effectively avoid the parts.
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(2) the nc machine tool function comprehensive development, implementation & other;All single intervention program & throughout;Processing.& other;All single intervention program & throughout;Processing, it is to point to be installed on the CNC machining, without human intervention, that a program started to complete processing and detection process.It will be the past product quality and processing efficiency depends on the skill level of traditional processing forms, shift the whole program, a single intervention process control and equipment to ensure the new form of function, achieve high efficiency, high precision, the whole program and a single intervention.
& have spentSpecific include:
& have spent(1) curing, cutting tools, optimization of cutting parameters, precise statistics to do the knives’ service life;According to a single intervention nc machining needs, optimize the machining process, increase the measurement procedure, reduce duplication of processing, and the original program as a subroutine in series in the machining process program, at the same time will & other;Automatically to the knife & throughout;, & otherMeasuring suspended & throughout;And & other;Hint instructions & throughout;Curing in process monitoring numerical control programs, and by means of coordinate system in the monitoring program framework directive, cutting tool parameters senior command, realize the whole machining process monitoring and management.
& have spent(2) through the cutter radius compensation, monitoring blade length compensation and the origin of coordinates, eliminate the human error, the operator in the process of data entry and make the operation more simple and easy to understand message way, more effective to reduce the operator participation rate.
& have spent(3) the origin mistake proofing, through the absolute coordinates and adjust the coordinate value judgment, and alarm when beyond, eliminate the operator in the process of the origin set wrong operation.
& have spent(4) to optimize the cutting parameter;According to a single intervention nc machining needs, optimize the machining process, reduce duplication of processing, and the original program as a subroutine in the series in the machining process program.
& have spent(5), for automatic knife instruction instead of previous manual operation on the edge of the sword;Will all process in series at the same time, through curing processing parameters, make the whole process of processing and completion.The whole process of implementation without intervention or less intervention.
& have spent6 CNC lathe on-line measurement technology function development.On-line detection can significantly improve processing efficiency, avoid secondary offline detection repair the clamping position, ensure the quality of machining.In machining parts can be real-time correction and compensation, to eliminate waste defective goods produced.Expand the nc machine tool function, improve the nc machine tool performance, improve the efficiency of nc machine tools.Automatic measurement technology, the process of turning tool automatic correction technology and automatic compensation technology to carry out in-depth study, can achieve certain processing, measuring and cutting tool compensation complete automation, improve efficiency and utilization rate of nc machine tool machining parts.
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(3) the development of machine tool compound function, improve the level of intelligent machine tools.Machine tools manufacturers should develop composite function, greatly improve the level of intelligent machine tools.The realization of the function of nc machine tool compound, real-time detection and relies on the workpiece and cutting tool, cutting tool management of intelligent judgment, data operation and control system.The high sensitivity of the probe, high-speed processing chip, a smaller, faster response of sensors and actuators and other automation products and technology will be widely used.Nc machine tool at a good program, machine tools, in accordance with the procedures prescribed by the command execution, in the process of machining, the machine can monitor whether any wear, spindle are fever, vibration, etc., can intervene process at any time, change the running parameters, reduce speed, feed rate, protect the machine or stop, etc.Machine tool manufacturers should clear the development trend of nc machine tools, master the nc machine tool development direction, make the nc machine tools, multiple functions, intelligent, and meet the needs of customers.
& have spent(the original title: aviation manufacturing encounter bottlenecks? How to develop to explore the function of nc machine tool) (source: metal processing Today’s headline number)

2017 China kunshan opened into the intersection Intelligent manufacturing equipment supply and demand two prosperous

By China’s ministry of commerce, ccpit and jiangsu provincial people’s government hosted the 2017 China (kunshan) brand products import trade fair in jiangsu kunshan kicks off on May 17th, 729 companies from 43 countries and regions.
Japan’s kawasaki vehicle simulation of the production line, Germany’s Siemens 4.0 laboratory, denso auto parts industrial automation production line & hellip;& hellip;17 kicks off the 2017 China (kunshan) brand products import trade fair (hereinafter referred to as “into the SEC), two of the world’s cutting-edge intelligent manufacturing equipment supply and demand.Past

China (kunshan) brand products import trade fair field by China’s ministry of commerce, ccpit and jiangsu province people’s government hosted the 2017 China (kunshan) brand products import trade fair in jiangsu kunshan kicks off on May 17th, 729 companies from 43 countries and regions, library CARDS in Germany, Japan fanuc and yaskawa robot manufacturing, welding high order fields such as enterprise all appearance.
high-profile intelligent manufacturing area is subdivided into automation and industrial robot, metal processing, key parts such as optimization show theme pavilions.Amazing intelligent factories were moved into the pavilion, sentiment roof.
kawasaki robot with vision for the future’s vision of a production line, shows the set of welding, arc welding, FSJ (new welding method) welding technology as one of the car body simulation production line.& other;FSJ welding technology is the first time in China.Throughout the &;Kawasaki robot (kunshan) co., LTD., chairman of sano said, seize the opportunity for China’s rapid economic development, kawasaki in the automotive industry, robot, and other fields are involved, estimated to sell 6000 units this year ontology robot, and the parts will all realize localization procurement.The future, kunshan robots will supply the global market.
6 years into the SEC’s new best in science and technology co., LTD., jiangsu first exhibition with foreign products agents, is now with r&d processing center, products are exported to foreign countries.Chairman of the board of directors of the company Dong Xiaojun confidently introduce the independent research and development production of nc machine tools, robots, & other;At least for the enterprise reduce the cost of 20% to 30%.Promote innovation ability, product than the same products in Europe with 30% of the price advantage.Throughout the &;
into the intersection location, jiangsu province, is the largest manufacturing and foreign trade big province, according to statistics, nearly five years, import and export amount more than $500 billion a year.Jiangsu enterprise investment project has covered & other;One Belt And One Road & throughout;Along the 54 countries.Into SEC, for manufacturing agglomeration in jiangsu international innovation resources, and promote industrial technology innovation ability construction, to speed up the industrial transformation and upgrading, the comparative advantages of textile, building materials and other traditional industries, as well as photovoltaic (pv), machinery and equipment and other high-end manufacturing can also borrow boat out to sea, to speed up & other;Go out & throughout;.
(the original title: 2017 China kunshan into SEC: intelligent manufacturing absorb eyes and gold), (source: China news network)

Dalian GongBoHui formal launch of the “cape smart” shine

On May 25, 2017, & ndash;27, in 2017 the first solo exhibition in dalian and Shanghai counterpart cooperation projects, dalian international industry fair in dalian xinghai exhibition center and the world expo center holding kicks off.The GongBoHui size of 22500 square meters, the exhibition brings together more than 20 provinces and autonomous regions nearly thousand enterprises exhibitors.In
at the
koyo group chairman to dalian municipal party committee secretary tan jun introduction enterprise
cape nc nc products co., LTD., was on display in this exhibition with independent intellectual property rights of key features are: all kinds of high-grade CNC field numerical control system, sensor system, electric spindle, servo motor, torque motor, series hydraulic product exhibits, etc.Site has a professional and technical personnel, welcome new and old customers to Cape Cod to visit our booth.The booth of cape of CNC is AT062.
cape nc products on display at the
cape nc products exhibition
cape nc as a professional supporting domestic high-grade CNC system and the key features of high-grade CNC machine tool manufacturers, always adhere to independent innovation as guidelines to advance, step by step across to the larger field.
(the original title: & other cape smart & throughout; dalian with our international industry fair) (source: cape numerical control co., LTD.),

Love better to launch machine tools with high precision measurement

Nc machine tool as a kind of precision processing equipment, has been more and more widely applied in the field of precision machining.In order to ensure that the numerical control machine tool has the very high machining accuracy, on the machine is equipped with appropriate displacement measuring device is necessary.As & other;Gusu talents & throughout;, graduate school of Chinese academy of sciences, associate professor of electrical engineering, southeast university post-doctoral, lead ChuJianHua entrepreneurial team, through five years of technology, and developed the & other;Active ball grating displacement sensor measurement & throughout;.Reporter in love good company met this kind of measuring instrument, the equipment is mainly composed of a metal ball from the land scale measurement and a signal equipment, ChuJianHua introduction, this & otherThe ball grid scale & throughout;Whole sealing structure is adopted to IP67 protection grade standard, its measurement precision is not affected by oil, water, iron and other common pollutants affect workshop, ruler of the warranty period can be up to 10 years.& other;General measurement sensor is not hard to do, I study hard, difficult in big mechanical implementation of advanced measurement.Throughout the &;ChuJianHua explanation: & other;An open large nc machine tools, electromagnetic interference is very big, and there are oil, in such bad environment, still can ensure the measuring accuracy of 1 micron, this is very not easy.Throughout the &;
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for a long time, on the precision machine tool configuration is a set of three coordinate displacement measuring device, mainly imported from abroad.According to introducing, the measuring instrument accuracy of similar foreign is 5 microns, a group of more than ten meters long three coordinates measuring instrument for about 7 to 80000 yuan, and love not only higher precision of products, the price is only half of the same products abroad.ChuJianHua revealed that China’s existing stock of 8 million sets of machine tools need to be modified, in addition, an annual increase of precision cutting machine more than 70 sets.He chuckles & other;Each machine needs to be equipped with precision measuring instruments, this is a & lsquo;Blue ocean market & rsquo;Every year, there will be billions of market demand.Throughout the &;
& have spentBecause see the demand in the industry, ChuJianHua lead the team to focus on automation measurement field, during the period of product performance testing, he often spends one night, in the machine tool workshop a continuous test.& other;The traditional grating measurement with the defect of instability, mainly by the environment, such as dust pollution, we solved this problem by electromagnetic principle, guarantee under the condition of the processing environment is very bad, the instrument can work normally.Throughout the &;
& have spentIn 2017, love good company won the jiangsu province private scientific and technological enterprise qualification.Product original ball grid structure, the active methods, key technology such as segmentation processing, weak signal processing is applied for two PCT patent, products comprehensive performance reached the international first-class level.It is understood that in addition to & other;The ball grid scale & throughout;, ChuJianHua r&d team to develop the space level precision Angle measuring equipment, has been successfully used in aeronautics and astronautics.The angular resolution can reach 0.1 & Prime;(seconds), measurement accuracy can reach & plusmn;0.2 & Prime;, the environment temperature range in – 40 ℃ to + 85 ℃, also can work normally under the strong shock.At present, the project has been successfully used in small satellite engineering center in Shanghai, and signed a contract in China academy of space technology.
& have spentChuJianHua said, love good company in the future will focus on the field, solve the market problem, in intelligent manufacturing precision core sensing components continue to research and development, contribute to further reduce the manufacturing cost in the industry.

& have spent& have spent(the original title: love beautiful launch machine tools with high precision measuring device) network) under the (source: