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山东beplay全站app安卓加工工艺提醒的注意事项!

来源:http://www.jnhjgs.cn     发布时间:2020-06-01 17:19:52    点击:

  I .刀轨规划
  I. tool path planning
  1.模口厚度:在机床能承受的很大载荷下,应选择较大的刀具、较大的进给量和较快快的进给量。在同一把刀的情况下,进给与进给量成反比。正常情况下,机床的负荷不成问题,刀具选择的原则主要是根据产品的二维角度和三维圆弧是否太小。选择刀后,确定刀的长度。原理是刀具长度大于加工深度。对于大型工件,应考虑卡盘是否干涉。
  1. Die thickness: under the large load that the machine tool can bear, large cutter, large feed and fast feed should be selected. In the case of the same tool, the feed is inversely proportional to the feed. Under normal circumstances, the load of the machine tool is not a problem. The principle of tool selection is mainly based on whether the two-dimensional angle and three-dimensional arc of the product are too small. After selecting a knife, determine the length of the knife. The principle is that the tool length is greater than the machining depth. For large workpieces, the interference of chuck shall be considered.
  2.beplay全站app安卓光刀:光刀的目的是满足工件表面光洁度的加工要求,并留有适当的余量。同样地,光滑的刀应该尽可能大,并且时间应该尽可能快,因为精细的刀需要更长的时间,并且应该使用合适的进给和进给。在相同的进给下,横向进给越大,速度越快。曲面的进给量与加工后的光洁度有关。进给尺寸与曲面的表面形状有关。在不损坏表面的情况下,保持小余量、大刀具、快转速和适当进给。
  2. Mold smooth knife: the purpose of the smooth knife is to meet the processing requirements of the workpiece surface finish, and to leave appropriate margin. Similarly, smooth knives should be as large as possible, and the time should be as fast as possible, because fine knives take longer, and appropriate feeds and feeds should be used. In the same feed, the greater the cross feed, the faster the speed. The feed rate of curved surface is related to the finish after machining. The feed size is related to the surface shape of the surface. Keep small allowance, large tool, fast speed and proper feed without damaging the surface.
  二、合模方法:
  2、 Mold closing method:
  1.虎钳夹紧:夹紧高度不应小于10毫米,加工工件时必须规定夹紧高度和加工高度。加工高度应比虎钳平面高5毫米左右,以保证牢固性而不损坏虎钳。这种夹紧属于一般夹紧。夹紧高度也与工件的尺寸有关。工件越大,夹紧高度越高。
  1. Vise clamping: the clamping height shall not be less than 10 mm, and the clamping height and processing height must be specified when processing workpieces. The machining height should be about 5mm higher than the plane of the vise to ensure the firmness without damaging the vise. This kind of clamping belongs to general clamping. The clamping height is also related to the size of the workpiece. The larger the workpiece, the higher the clamping height.
  2.夹板夹紧:夹板在工作台上用代码编码,工件用螺钉锁在夹板上。这种夹紧方式适用于夹紧高度不足、加工力大的工件,一般适用于效果好的大中型工件。
  2. Splint clamping: the splint is coded on the workbench, and the workpiece is locked on the splint with screws. This kind of clamping method is suitable for the workpieces with insufficient clamping height and large machining force, and generally suitable for the large and medium workpieces with good effect.
  3、码铁装夹:在工件较大、装夹高度不够,又不准在底部锁螺丝时,则用码铁装夹。此种装夹需二次装夹,先码好四角,加工好其它部分,然后再码四边,加工四角。二次装夹时,不要让工件松动,先码再松。也可以先码两边,加工另两边。
  3. Code iron clamping: when the workpiece is large, the clamping height is not enough, and it is not allowed to lock the screw at the bottom, the code iron clamping shall be used. This kind of clamping requires secondary clamping, first code four corners, process other parts, then code four corners, process four corners. During the second clamping, do not let the workpiece loose, first code and then loosen. You can also code two sides first and process the other two sides.
  4、刀具的装夹:直径10mm以上,装夹长度不低于30mm;直径10mm以下,装夹长度不低于20mm。刀具的装夹要牢固,严防撞刀与直接插入工件。
  4. Clamping of cutter: the diameter is more than 10 mm, and the clamping length is not less than 30 mm; the diameter is less than 10 mm, and the clamping length is not less than 20 mm. The clamping of the cutter shall be firm, and it shall be strictly prevented from hitting the cutter and directly inserting the workpiece.
  三、加工工艺的选择:
  3、 Selection of processing technology:
  1、曲面挖槽:范围的选择与面的选择
  1. Surface trenching: range selection and face selection
  刀路加工区域:以所选范围内所选面为终止面,从高点到低点刀具能下得去的所有地方为原则。所选面尽量是全体面,边界则只能是所要加工的区域,无面延伸小于半个刀径的距离,因为其它面留有足够余量所以自动保护;尽量延伸低限度,因为低限处有一个R锣不到。
  Tool path processing area: the selected surface within the selected range is the termination surface, and all places that the tool can go down from the high point to the low point are the principle. The selected face shall be full face as far as possible, and the boundary shall only be the area to be processed. No face extends less than half of the cutter diameter, because other faces have enough margin, so it is automatically protected; extend as far as possible, because there is less than one R gong at the lower limit.、
  刀的选择:如刀具不能螺旋或斜线进刀时或加工不到的区域进不了刀的区域封起,留待二次开粗。
  Selection of cutter: if the cutter can't enter the helix or oblique line, or the machining area can't enter the cutter, the area shall be sealed and left for the second opening.
  光刀之前,一定要把未开粗的区域全部开粗,特别是小角,其中包括二维角,三维角及封起来的区域,不然则会断刀。二次开粗:一般用三维挖槽选范围,平底刀,能用平面挖槽与外形刀路的则用。在不伤及其它面的情况下刀具到所选高,当挖槽形状为条形,不能螺旋下刀则用斜线进刀,一般打开过滤,特别是曲面开粗,进刀平面不可低,以免撞刀,安全高度不可低。
  Before the smooth knife, it is necessary to make all the areas that have not been cut thick, especially small angles, including two-dimensional angle, three-dimensional angle and sealed area, or the knife will be broken. Secondary roughening: it is generally used to select the range of three-dimensional trenching, flat bottomed cutter, and the one that can use plane trenching and profile cutter path. Without damaging other surfaces, the center of the tool is to the selected height. When the groove shape is strip shape, and it is impossible to screw down the tool, the oblique line is used to feed the tool. Generally, the filter is opened, especially when the curved surface is rough, and the feed plane cannot be low, so as to avoid hitting the tool, and the safety height cannot be low.
  退刀:一般不用相对退刀,用绝对退刀,当没有岛屿则用相对退刀。
  Back off: generally, relative back off is not used. Absolute back off is used. If there is no island, relative back off is used.
  2、平面挖槽:铣各种平面,凹平槽,当铣部分开放式平面时,则需定边界,原则能进刀(大于一个刀径),开放处偏外大于半个刀径,封闭外围。
  2. Plane slotting: milling all kinds of plane, concave and flat groove. When milling part of the open plane, it is necessary to determine the boundary. In principle, it can feed (more than one knife diameter), the opening part is more than half of the knife diameter, and the periphery is closed.
  3、外形:当所选平面适合外形分层,则用外形分层提刀(平面外形),提刀点与下刀点为一点时,不须提刀Z平面一般提刀,尽量不用相对高度;补正方向一般右补正(顺刀)。
  3. Profile: when the selected plane is suitable for profile layering, the profile layering tool lifting (plane profile) is used. When the tool lifting point and the lower tool point are one point, the z-plane tool lifting is not necessary, and the relative height is not needed as much as possible; the direction of correction is generally right correction (along the tool).
  4、机械补正的刀路设置:补正号为21,改电脑补正机械补正,进刀为垂直进刀,刀过不了的地方则改大R不留余量。
  4. Setting of tool path for mechanical correction: the correction number is 21, and the computer correction is changed to mechanical correction. The feed is vertical feed, and the area where the knife cannot pass is increased by R without margin.
  5、等高外形:适合于走封闭式的面,走开放式的面若是四圈则要封项面,若是四圈内或非四圈则要选范围与高度(一定弧形进刀开粗),用于开粗的情况:任一平面内的加工距离小于一个刀径,若大于一个刀径则要用更大的刀或两次等高外形。
  5. Contour of equal height: it is suitable for the closed face. If the open face is four circles, it is required to seal the item face. If it is within four circles or not, it is required to select the range and height (certain arc feed is required to be rough). It is used for the case of rough cutting: the processing distance in any plane is less than one cutter diameter, if it is larger than one cutter diameter, it is required to use a larger cutter or two contour of equal height.
  6、曲面流线:具有较好的均匀性与干脆性,适合光刀很多时候可取代等高外形。
  6. Curved streamline: with good uniformity and dry brittleness, it is suitable for smooth knife to replace contour in many cases.
  7、放射刀路:适合中间有大孔的情况(少用)。注意事项:弹刀,刀不锋利,刀过长,工件过深时要环绕走不可上下走;工件中的利角两边的面要分两个刀路,不可越过去,光刀时的边缘延长(用弧线进退刀)。
  7. Radial knife path: suitable for the case with large hole in the middle (less use). Note: the spring knife is not sharp, and the knife is too long. When the workpiece is too deep, it should not go up or down around; the surfaces on both sides of the sharp angle in the workpiece should be divided into two knife paths, which should not go over, and the edge of the smooth knife should be extended (use arc to advance or retreat the knife).
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