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    首页:新闻技术 >> 手机版万博注册登录制造存在的主要问题及分析
    目前手机版万博注册登录辊皮(也叫管子)加工的设备是上世纪80年代的产品,用于制造辊皮的钢管,在径向上公差较大并有椭圆度,在轴向上直度公差较大,加工出来的辊皮,基本无法保证径向圆的跳动量。国家煤炭行业标准MT821-2006规定的径向圆跳动量的最小值为0.7mm,采用现行的加工设备和钢管加工的手机版万博注册登录辊皮,达标比率较低。 The idler roller skin (also called pipe) processing equipment is the product of the 1980 s, used in the manufacture of steel pipe roller skin, on the radial tolerance is larger and the ovality, tolerance is larger in the shaft straightened, roll leather processing, basic is no guarantee that the radial beat quantity of the circle. MT821-2006 national coal industry standard amount of radial round to beat the minimum value of 0.7 mm, with the current machining equipment and steel pipe roller roller skin, standard ratio is low. 具体问题有: Specific questions are: 1)管子镗口时,管子2端止口间的距离,即图3中尺寸937,误差较大并数值分散,误差值一般在3mm范围。此误差给手机版万博注册登录轴的加工带来了不便。若手机版万博注册登录轴完全按图纸要求加工,就会有30%以上的手机版万博注册登录辊体与轴,由于轴上轴用挡圈槽的距离相对小,而无法装配。目前实际加工中,为了解决相互尺寸不配套的问题,大多数的厂家只好放大手机版万博注册登录轴上轴用挡圈槽的距离,一般放大值在3-5mm。放大后虽然解决了无法装配的问题,但又带来了30%以上的手机版万博注册登录轴向穿动量超标,影响了现场使用。之所以产生此类问题,是由于加工设备落后,采用无触点限位开关设定进给行程。 1) the pipe boring, pipes, the distance between two side seam allowance, namely the size in figure 3, 937, and the numerical dispersion error, error value generally in the range of 3 mm. This error brought inconvenience to the supporting roller processing. If the roller completely according to the drawing requirements processing, there will be more than 30% of the idler roller and shaft, due to the shaft axis with the distance of the ring groove is relatively small, and can't assembly. In the actual processing, in order to solve the problem of size don't match each other, most of the manufacturers have to enlarge the distance with the retaining ring groove on the roller shaft as, general zoom value in 3 to 5 mm. Enlarged although have solved the problem of unable to assembly, but also brought momentum to exceed bid more than 30% of the roller to wear, impact on the field use. Is such a problem, is due to the processing equipment, using non-contact limit switch set feeding schedule. 2)管子镗孔设备夹持管子的夹具没有纠偏对准功能,采用V型铁或圆锥内表面的方法来夹持或顶持辊皮并设定轴向中心,然后两端镗口或倒角,加工出安放轴承座的止口或引导口,加工出的管子外皮相对于管子2端止口的轴线,径向跳动量较大。原因有三点,其一是管子端口与管子轴线的垂直度误差,其二是管子端口的椭圆度及直径误差,其三是设备的设计缺陷及精度。 2) pipe boring equipment clamping pipe clamp without correction function, adopt the method of v-shaped iron or conical surface to clamping or a roller skin and set the axial center, and then on both ends of the boring or chamfering, work out put the seam allowance or guide mouth of bearing seat, work out the tube skin relative to the pipe axis of the 2 end, radial runout is high. The reason has three, one is the pipe port with the pipe axis perpendicularity error, error of the second stage is the ovality and the diameter of the pipe port, the third is the design defects and the accuracy of the equipment.
    [来源:原创] [作者:aywl] [日期:17-01-18] [热度:]
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