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)

5.18 fair opening of langfang Beijing-tianjin-hebei industry collaboration to depth of fusion

On May 19, in 5 & middot;18 fair international cooperation capacity ZhanZhu pavilion, a visitor in langfang carved CNC machine tool manufacturing co., LTD., research and development of new products.Carved technology co., LTD. The company is Beijing in langfang in the construction of a wholly owned subsidiary, main products carved CNC engraving machine with 31 national patents and eight counts of software copyright, widely used in mobile phone accessories processing, precision mold products more than 20 industries, such as fine processing and characteristics.Beijing-tianjin-hebei

conference on artificial intelligence and robotics industry high-end released, jingjinji tourist cooperation projects and tourism promotion seminar & hellip;& hellip;In 2017 China & middot;Langfang international economic and trade fair (hereinafter referred to as 5 & middot; 18 symposium), between the beijing-tianjin-hebei industry become one of the key projects and docking activities.
industry docking content escalating, industry docking mode continuous innovation & ndash;& ndash;In 5 & middot;18 fair process, journalists feel, beijing-tianjin-hebei industry collaboration is heading for depth of fusion.
industry docking content escalating & other;Advanced & throughout;Project lead, & other;Beijing throughout development, hebei manufacturing &;
& other trend is more and more obvious;In zhangjiakou construction hydrogen fuel cell engine production base, with a total investment of 1 billion yuan, the first phase of the project with an annual output of 2000 units of hydrogen fuel cell engine, the second phase of the annual output of 10000 units.Throughout the &;This is Beijing billion huatong technology company with qiaodong district government zhangjiakou in the 5 & middot;The main content of the cooperation projects signed 18 symposium.Beijing
huatong technology company, is currently the only company in our country the fuel cell engine system integrators, began operating in Beijing in 2006 the first hydrogen filling station.Company with r&d base in Beijing, and involved in all of China’s development of fuel cell bus to work.
& other;Production base in zhangjiakou construction, can effectively integrate the hydrogen fuel cell power system, vehicle manufacturing and social operating vehicles such as hydrogen production chain of each link, the zhangjiakou city into a national hydrogen.Throughout the &;The relevant person in charge of Beijing billion huatong technology company said.
in 5 & middot;18 symposium, process engineering research institute of Chinese academy of sciences and hengshui city high-tech zone signed the cooperation agreement.According to the agreement, the Chinese academy of sciences institute of process engineering will invest 9.8 billion yuan in new energy and new materials of the Chinese academy of hengshui city high-tech industrial vanadium titanium all projects, including construction of vanadium battery equipment laboratory, pilot platform and standard production workshop and so on.Project construction period is three years, completed the year after sales will reach 10 billion yuan.Whether
huatong in zhangjiakou manufacturing hydrogen fuel cell engine, or process engineering research institute of Chinese academy of sciences and hengshui city high-tech zone of cooperation, they convey the message: jing ji industrial docking content stride towards & other;Advanced & throughout;, & other;Beijing throughout development, hebei manufacturing &;The trend is more and more obvious.
in this symposium, Beijing and the development of science and technology co., LTD. Invested 2.5 billion yuan to build big data perception experience center and application project, Beijing donghua software companies to invest 2 billion yuan to build cloud platform system and cloud data research application project & hellip;& hellip;A series of & other;Or moving cloud wisdom & throughout;In the field of project in hebei, & other;Advanced & throughout;Projects are singing beijing-tianjin-hebei industry collaboration in the role of drama.During the
participants, ao, bo (Beijing) intelligent technology co., LTD., general manager of Laos, said compared with the Yangtze river delta, the pearl river delta, the traditional areas of manufacturing and supporting industry in hebei province also has a certain gap, but the artificial intelligence, such as large data industry chain is shorter, the industrial supporting requirements is not very high, and the Beijing and tianjin has very good talent and technology advantages.Hebei province should seize the opportunity, take the initiative to undertake industry transfer, will be promising.
(the original title: cooperation projects & other advanced & throughout; butt joint collaboration innovative & ndash; more & ndash; from 5 & middot; 18 symposium beijing-tianjin-hebei industry towards depth fusion) (source: hebei daily)

Tianrui seiko new gantry polyhedral machining center charm is infinite

Ningbo tianrui seiko machinery co., LTD is a company specializing in the production of high quality CNC machine tool equipment sino-foreign joint ventures, since was established has always been committed to the vertical machining center, gantry machining center, gantry high-speed machine, vertical high-speed machine, five axis machining center CNC products such as research and development, the Asian manufacturing technology with the German technology perfect fusion.
& have spentNow, facing the new requirements of the machine tool market, tianrui seiko timely adjust management strategy, give full play to their own advantages, the enterprise positioning, make out high speed, high intelligence, high precision, high efficiency, high quality products.Gantry VM5230 polyhedral machining center, as a new product of tianrui seiko, with how to charm?
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gantry polyhedral machining center VM5230 & have spentGantry VM5230 polyhedral machining center features:
& have spent1, VM5230 configuration swing head can realize arbitrary Angle space plane and hole processing.The most suitable for processing and cars and all kinds of mold, complex shape, a great work of strong cutting until the whole process of high precision finishing.
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gantry polyhedral machining center VM5230 & have spent2, the X axis four rail cross slide block layout, strengthen the workbench bearing, screw special support to ensure no trailer.
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gantry polyhedral machining center VM5230 & have spent3, beams using the most reasonable reinforcement with combination of the m word muscle, has excellent bending torsional properties;Y 3 roller thread rail, eight lengthen slider, layout is reasonable.
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gantry polyhedral machining center VM5230 & have spent4, 1300 or 1500, Z axis stroke 4 roller thread track configuration, 12 slider, symmetrical layout, reasonable force.
& have spent5, automatic switching head warehouse AHC, adopt servo motor and high precision track positioning, independent, do not take up processing space.
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gantry polyhedral machining center VM5230 & have spent6, the main shaft adopts straight league structure, high speed, small vibration, torque force is big.Compact structure suitable for deep cavity machining parts.
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gantry polyhedral machining center VM5230 & have spent7, with Hyde han high-end controller, color LCD screen, can adjust load, convenient manipulation.
& have spent8, electric control box and weak electricity separate configuration, eliminate interference, increase reliability and trouble-free working time.
& have spent(the original title: tianrui kraft lots VM5230A unveiled) (source: tianrui seiko)

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: