Village cropland machinery is rolled out lade new model of the main shaft activity of exercise automation lathe

 Village cropland machinery developed main shaft activity lathe ” MV200 ” . Chuck dimension is diametical 250mm. Be 205mm with chuck diameter ” MV120 ” identical, although use model for the hand,its characteristic is, came true to carry work by main shaft chuck however. Need not make installing preform to wait to main shaft chuck lade exercise.

Because can tear open outfit workpiece from chuck of tendercy main shaft, accordingly, move type photograph to compare with the hand, operation error is less, tear open outfit time shorter also. Lathe makes preform is machined below the to load when machining in work staff, until take out already completed work till, the time that place of this a chain of movement spends is 3 seconds (this company is measured) . The automation that works through lading, rose average machinery of exercisable of personnel of every master course of study is counted.

When much stage MV200 arranges compositive product line, as a result of working procedure by artificial bearer, accordingly, satisfy the requirement that working procedure changes his costume or dress more easily. Additional, still but compose is built suit to undertake varietal and variable sheet manufacturing product line.

Respect of fast feed career, x/Z axis is 40m/ cent and 30m/ cent respectively. Can machine below standard circumstance most greatly the workpiece of long 100mm of diametical 200mm × . Turn except 10 horn servo besides the head, still installed auxiliary whorl to comb stage of knife cutting tool. Can deploy on stage of this cutting tool rotate cutting tool component, go burr component and grinder component, the concentration that realizes working procedure thereby is installed.

Numerical control lathe machines spherical error analysis to reach eliminate a method

Graph the error sketch map of axis of X of deviate of point of a knife of 1 lathe tool

When the treatment on numerical control lathe is spherical, appearance error influencing factor and eliminate a method to be as follows.

    The error that axes of main shaft of deviate of lathe tool point of a knife causes and eliminate a method (it is exemple) with the ball inside the car. If the graph is shown 1 times, ∆Y is the distance of axis of X of lathe tool deviate, dt is diameter of theory of A-A section plane, d needs ball diameter for place, r=D/2 amount to accuses radius of interpolation of circular arc of lathe cutting tool. On A-A section plane curve of interpolation of cutting tool circular arc shows long axis to be kind of ellipse of D1 for D, short axis, its error is for D=D-D1=D-2[(D/2)2-∆Y2]½(1) in actual production, product blueprint should put forward to be machined commonly ball diameter precision. If machine ball bearing precision to be in commonly ± 0.005mm less than, namely D=0.01mm. To assure this precision, must control ∆Y. By type (1) knows ∆Y= ± ½(2Dd-d2)½(2)

    Graph sketch map of 2 pairs of knives

    Set D=80mm, when machining ball bearing, computational earning | ∆Y | ≤ 0.63mm. If pursue,to knife method 2 are shown. The numerical value on dial gauge is ∆Y value namely. The influence of error of the centre of a circle of interpolation of cutting tool circular arc and eliminate a method (with the car inside spherical for exemple) show 3 times like the graph, ∆X is the distance of axis of Y of deviate of the centre of a circle of interpolation of cutting tool circular arc, d needs ball diameter for place, d1 is XOY plane to go up to machine a diameter actually: D/2 is radius of interpolation of cutting tool circular arc. Visible, on XOY plane, error D=D1-D=2∆X: On XOZ plane, the elliptical ball that shows long axis diameter to be D for diameter of D1, short axis, its errorD=D1-D=2∆XCompare a law to remove the effect of error of the centre of a circle of interpolation of cutting tool circular arc with pointwise.

    Graph the centre of a circle of interpolation of circular arc of 3 cutting tool affects sketch map (inside spherical)

    (A)2∆X>0, to compensation ∆X

    (B)∆X<0, lose to compensation ∆X
    Graph 4 cutting tool compensate sketch map

    Thick car sets D to need for place inside ball diameter, 1 ~ 1.5mm stays when thick car surplus of half fine vehicle, namely A1=D-(1 ~ 1.5) . internal diameter of thick car ball A1 of diameter of interpolation of the circular arc in real measure and program is compared, get error of center of main shaft of deviate of the centre of a circle of interpolation of cutting tool circular arc to be 2∆X. Be like 2∆X>0, criterion direction of edge X axis to compensation ∆X, be like 2∆X<0, lose along X axis direction to 4) of compensation ∆X(graph. Half thick car leaves surplus of 0.5mm fine vehicle, namely A2=D-0.5, measure next, quite, method of cutting tool compensatory is Alexandrine, give place to need till the car inside spherical.

Spherical principle is same inside car spherical outside surface and car, compensation way is same, what what differ is cutting tool installation way is opposite.

    Because pace of numerical control lathe enters electromotor pulse equivalent to be able to be amounted to 0.01, 0.005, 0.001mm, precision of curve of circular arc interpolation is in accordingly ± 0.01, ± 0.005, ± 0.001mm, the basis is machined spare parts demand, choose corresponding numerical control lathe, can satisfy production to need actually.

    The hand of numerical control lathe uses control

          Numerical control lathe moves an operation through the hand of Control Panel, achievable feed motion, main shaft rotates, bits of switch of cutting tool dislocation, cooling fluid, platoon implement open stop wait for a movement.
     
        One, feed motion operation

        Feed motion can be divided move feed for successive feed and dot. Both distinction is: Below type of hand movable mould, press coordinate feed bolts, feed component moves continuously, till till loose coordinate feed bolts; Condition is moved to fall in the dot, every press coordinate feed key, feed component is only mobile beforehand the distance of set.

         Feed operation includes successive, dot to use the option of means, the setting of feed, feed direction control.

         2, main shaft and cooling operation

        Below type of hand movable mould, can set main shaft rotate speed, the main shaft that start, invert and stop, cooling fluid leaves, close etc.

        3, the hand is moved change a knife

        Change the numerical control lathe of knife device automatically to having, can make tool carrier automatic through order injunction dislocation, also can move control tool carrier to change a knife through face plate hand.

        4, platoon bits implement control

        Press corresponding pushbutton can control a bit implement turning, invert and stop. Turning use at discharging bits, will discharge bits when scrap implement when card lives, usable invert come away.

    Circular arc of point of a knife machines medium influence in numerical control lathe

    Graph 1

    Graph 2

    1 foreword is in use process of numerical control lathe, be machined to reduce the surface roughness of workpiece surface, slow down cutting tool wears away, improve cutting tool life, normally form of circular arc of wear of blade of lathe tool point of a knife, circular arc radius is commonly between 0.4 ~ 1.6mm. Use radius of point of a knife compensates a function (the numerical control lathe of G41, G42) , want to press work measure process designing directly in machine program only, won’t cause machining error because of circular arc of point of a knife; And the numerical control lathe that does not have this function, can get in treatment the influence of circular arc of point of a knife, serious when, can cause workpiece out of tolerance to discard as useless. Pursue now the treatment with a spherical SR10-0.04 in showing work will discuss this issue. Analysis of 2 machining error is in the use of lathe of economy numerical control, we are used normally try cut a way to the knife, such, the knife that machine program place describes the dot is P dot (graph 2) , and what attend cutting actually is circular arc of point of a knife (radius of circular arc of here point of a knife is not P dot for 0.4 Mm) , because this P point is real nonexistent. So, the error of different level exists between the contrail that the P that machine program place describes nods and effective treatment outline. But round outside turning, inside when aperture and end panel, this error is 0. And when machining dambered surface and cone, this error is apparent. The machining error analysis with spherical SR10-0.04 sees a picture 2. In the graph, the contrail that the P that M line describes for machine program place nods, namely the theoretical size of workpiece, and the outline after be being machined actually is N line, the shadow is the hypostatic part of little cutting, namely machining error. We use CAXA electron plate medium ” elemental attribute inquires ” function, check N line is the circular arc that a paragraph of radius is 9.6mm, the biggest error is 0.17mm about, if this error is inside tolerancepublic errand limits, we are negligible it, otherwise we are about to adopt measure to eliminate it. The elimination of 3 errors method

      Method 1: When changing process designing of process designing dimension, adjust the contrail of point of a knife, make point of a knife of circular arc form actual treatment outline and ideal outline conform to. With SR10-0.04 spherical treatment is exemple, we need to make fine vehicle block following altering only when process designing can:

      Before the change After the change


      N100 G00 X0 Z50
      N105 G03 X10 Z42 R10 FO.1

      N100 G00 X0 Z50
      N105 G03 X10 Z42 R10.4 FO.1
      … method 2: It is a knife with center of circular arc of point of a knife move of dot process designing is as follows: → of scale workpiece draft is feature of contrail of center of circular arc of computation of → of contrail of motion of circular arc of basis scale point of a knife to nod → process designing with R of radius of circular arc of point of a knife and work measure. Computation of the scale in contrail of center of circular arc of the point of a knife in this process and its feature dot shows a trouble slightly, if use the coordinate that the scale function that is apart from a line and dot wait for in CAD software to inquire the function comes,complete this work, appear very convenient. Additional, when using this kind of method to machine, handlers should notice the following at 2 o’clock: Whether is the R value of the radius of circular arc of point of a knife that 1) checks an use cutting tool worth conform to with the R in the program; 2) is right when the knife, want to consider R value to go in, namely: If to the knife that the knife receives filling value is X(X axis) with Y(Z axis) , filling value is the knife that should input actually X-2r and Y-r.

    4 epilogue the article basically is beyond the treatment of arc of predestined relationship protruding is exemple undertake discussion, the dambered surface of other type, cone also is put in similar problem, the article no longer give uncecessary details.

    Yuhuan won the “Chinese small designed, fine machine tool production base” title

    On July 12, Chinese small & other;Specifically, fine & throughout;Machine tool production base of opening ceremony and the regional brand construction training held in yuhuan.This is yuhuan in industry for the first ten pieces of national golden signboard, yuhuan machine tool industry will open to state for leading brands, to & other;Specifically, fine & throughout;Machine tool technology and quality and improved in the new period of development.China’s small & other;Specifically, fine & throughout;Machine tool production base of opening ceremony and the regional brand construction training field in China machinery industry federation, executive vice President of Yang Xuetong, xiao-ying wang director of work quality of China machinery industry federation, China quality association deputy secretary-general wang, deputy secretary of municipal party committee of yuhuan, mayor Wu Caiping, yuhuan city vice mayor Li Danjia, yuhuan city bureau of the letter Jin Fucheng, yuhuan machine tool association Lin Zongsheng, yuhuan, yuhuan machine tool industry association corporate representative, director of industrial enterprise brand construction on behalf of the people to attend the meeting.Event, vice chairman of China machinery industry federation gave nameboards Yang Xuetong, yuhuan city vice mayor Li Danjia pick up card.China machinery industry federation think, yuhuan machine tool industry dominated by numerical control machine tools and automation equipment, various features complete industry chain and public service facilities, formed the unique small & other;Specifically, fine & throughout;Machine industry cluster, comply with the national industrial policy, the broad prospects for development, in line with the China machinery industry federation and determination of mechanical industry industrial cluster regional brand, the requirements of the relevant decision awarded the zhejiang province yuhuan city & other;China’s small & lsquo;Specifically, fine & rsquo;Machine tool production base & throughout;The title, valid for five years.Vice secretary of municipal party committee, mayor of yuhuan Wu Caiping said the machine tool industry is an important sector of yuhuan city industrial economy, after years of development, has gradually formed with economical nc machine tool as the main product of industry cluster, the product coverage in eastern and southern coastal manufacturing industry developed regions in China.He pointed out that the access to Chinese small & otherSpecifically, fine & throughout;Machine tool production base in this title, is not only the past achievements in yuhuan city affirmation, is also for the future work of yuhuan, inspiration and spur to further enhance yuhuan city regional brand, create & other;Throughout & industrial powerful city;Has the very vital significance.He stressed that the brand is the important carrier of high added value, yuhuan city will adhere to in the future & other;Quality win, brand drive & throughout;Development strategy, encourage leading enterprises dominated, to participate in all kinds of standard revision work, adhere to the standard led drive and innovation, strengthen the property maintenance, building innovation platform to gather more innovative talents, the agglomeration effect of enlarged base, actively expand sales channels, to implement industrial market want to cross industrial powerful city yuhuan inject new vitality.Vice secretary of municipal party committee, mayor of yuhuan Wu Caiping yuhuan machine tool association Lin Zongsheng pointed out that China machinery industry federation awarded yuhuan & other;China’s small & lsquo;Specifically, fine & rsquo;Machine tool production base & throughout;Title, in yuhuan machine tool industry, a milestone in the history.Both affirmed the yuhuan machine tool industry cluster for decades results and the adjustment of product structure, the development of the enterprise also affirmed the yuhuan machine people the spirit of hard work, open the yuhuan machine tool industry upgrading and development of the new journey.Yuhuan machine tool industry in the future, he said, will be three & other;Insist on & throughout;, adhere to deepen the state regional brand creation activities, leading the industry brand strategy implementation;Adhere to & other;Specifically, fine & throughout;Three characters as the core orientation, leading the industry product technology and product structure upgrade;Adhere to target production base for the development of scale, leading the industry constantly enhance the level of production and expanding industrial scale.Yuhuan yuhuan machine tool association Lin Zongsheng 2016 production of nc machine tools, machine tool industry more than 40000 sets of production accounts for nearly a quarter of the similar products.At the same time, in the process of industrial development, formed to magnus hedman intelligent equipment, yuhuan zhejiang zhongxing nc machine tools, such as zhejiang ring machine backbone enterprises of yuhuan machine tool industry cluster and & otherYuhuan machine tool & throughout;Regional brand, the industry existing provincial famous trade name 1, 2 provincial high and new technology enterprise, 5 city-level technology centers, all kinds of inventions and utility patents 50.Combined with the China machinery industry federation awarded yuhuan & other;China’s small & lsquo;Specifically, fine & rsquo;Machine tool production base & throughout;Opportunity, China machinery industry federation and yuhuan municipal government jointly held the industrial enterprise brand manager and regional brand building training seminar.China machinery industry federation invited Chinese quality association deputy secretary-general of the brand center director wang, as well as the ministry of brand experts what to yuhuan on-site teaching, to promote the city of yuhuan machine tool industry and machinery industry enterprise brand cultivation and regional brand construction.From yuhuan machine tools and machinery industry more than 300 people took part in a one and a half days of training to learn.China quality association deputy secretary-general of brand center director wang according to the state and government departments concerned about the quality of the brand construction of policies and measures and work requirements.From the brand strategy planning, location, design, communication, protection and culture and so on each link, explained the implementation of comprehensive brand management of the scientific method, as well as the establishment and implementation of enterprise brand cultivation management system.Miit brand do propaganda experts what to carry out the ministry of industry cluster regional brand construction work related policies, this paper introduces the ministry of industry cluster regional brand demonstration area of work experience, combined with the city of yuhuan machinery industrial enterprise the actual situation of the brand creation, study and communication industry cluster in the current industry transformation and upgrading, quality, and the synergistic critical period of development, how to use science to do industry planning, standardize the market competition, with standard lead product quality, enhance regional brand influence.Both training content of yuhuan city to carry out the quality of enterprises and regional brand construction is of great help.(this article is provided by China machine tool business original, reproduced please indicate the source link.)