一般情况下，工件通过热处理后会变形，有的面凹，有的面凸，硬度较硬，有的斜顶变形严重，加工较困难，工件越大越厚反而变形较少，加工起来比较容易，…
In general, the workpiece will deform after heat treatment. Some surfaces are concave, some surfaces are convex, and the hardness is hard. Some inclined tops are seriously deformed, which is more difficult to process. The larger and thicker the workpiece, the less deformation, and it is easier to process
一般情况下，工件通过热处理后会变形，有的面凹，有的面凸，硬度较硬，有的斜顶变形严重，加工较困难，工件越大越厚反而变形较少，加工起来比较容易，所以要根据工件的大小来确定加工的方式。
Generally, the workpiece will be deformed after heat treatment. Some surfaces are concave, some are convex, and the hardness is hard. Some inclined tops are seriously deformed, which makes it difficult to process. The larger and thicker the workpiece, the less deformation, and it is easier to process. Therefore, the processing method should be determined according to the size of the workpiece.
在塑胶模具前后模仁、滑块、耐模板等通过大水磨加工开粗，钢料的余量一般都会在50-60丝左右余量，在塑胶模具中模仁、滑块的精度要求相当高，所以在对工件的加工前，先对工件各个部位的尺寸进行卡数，看余量是否充足和均衡，尤其有台阶的工件一定要卡仔细，做到心中有数合理加班工件的几个面，从而避免一个面的余量多碾磨，而造成其它的面余量不足，导致工件直接报废。
Before and after the plastic mold, the mold kernel, sliding block and resistant template are roughened by large water grinding. The allowance of steel is generally about 50-60 wires. In the plastic mold, the accuracy requirements of mold kernel and sliding block are quite high. Therefore, before processing the workpiece, the dimensions of each part of the workpiece shall be counted to see whether the allowance is sufficient and balanced, In particular, the workpiece with steps must be carefully clamped, so as to know several surfaces of the workpiece reasonably, so as to avoid excessive grinding of the allowance of one surface, resulting in insufficient allowance of other surfaces, resulting in the direct scrapping of the workpiece.
所以在水磨加工过程中对工件的一个平面进行碾磨，尽量选择变形的一面行碾磨，在控制好余量，碾磨之前把砂轮修平，开粗前砂轮不要修得太细，大水磨的工作台面上要擦得干干净净，上磁，启动电源，抬高机头，对刀，轻轻地溜一刀，看在工件的平面那里擦出火花，抬高10-20丝，开启自动，再次溜刀，前后左右摆动的行程调节好，边溜刀边轻轻进刀，开启切削液进行冷却，慢慢进刀直到擦出火花，看刻度并把刻度归零，方便记住加工进了多少余量，看擦出火花的大小来确定进刀量，由于热处理的工件较硬，在碾磨的过程中砂轮会很吃力，非常难啃，所以要不断的修复砂轮，确保砂轮的尖锐性，较快的把工件面碾磨好，几刀进几丝轻轻的光刀，使工件的面光滑、平。再把光好的面放在机台台面上，进行这个面的碾磨加工，通过上述方法进行操作，把工件直接加工到位。
Therefore, in the process of water grinding, first grind a plane of the workpiece, select the deformed side as much as possible, grind it first, control the allowance, flatten the grinding wheel before grinding, do not repair the grinding wheel too fine before roughing, wipe the worktable of the large water mill clean, apply magnetism, start the power supply, raise the machine head, set the knife, and slide the knife gently, Look at the spark on the plane of the workpiece, raise it by 10-20 wires, turn on the automatic, slide the tool again, adjust the stroke of swinging back and forth, feed gently while sliding the tool, turn on the cutting fluid for cooling, feed slowly until the spark is rubbed, look at the scale and return the scale to zero, so as to remember how much allowance has been processed, and determine the feed amount by looking at the size of the spark, As the heat-treated workpiece is hard, the grinding wheel will be very difficult to chew in the grinding process, so it is necessary to constantly repair the grinding wheel to ensure the sharpness of the grinding wheel, grind the workpiece surface quickly, and finally insert a few light knives into the last few knives to make the surface of the workpiece smooth and flat. Then put the polished surface on the machine table, grind and process this surface, and operate through the above methods to directly process the workpiece in place.
再以碾磨好的上下面为基准面，借助于PS治具打直角，不同的工件采用不同的装夹方法，用光好的上下面死贴PS的两个垂直面，再用扳手锁紧，工件的另一面不要超出PS的侧面，把PS擦干净，PS的正面放在台面上进行碾磨，见光就止，再停机，把PS拿下来，弄干净，台面擦干净，以确保工件的垂直度，再把PS的侧面平放在工作台面上，上磁；把工件的这个面给光出来，控制好余量，再把工件从PS中拿出来，这里一定要注意，工件的毛刺一定要清理干净，工作台面一定要弄干净，不然会影响工件的垂直度。
Then, take the milled upper and lower parts as the datum plane, make a right angle with the help of PS fixture, adopt different clamping methods for different workpieces, stick the two vertical planes of PS with the polished upper and lower parts, and then lock them with a wrench. The other side of the workpiece shall not exceed the side of PS, wipe the PS clean, put the front side of PS on the table for grinding, stop at the sight of light, stop the machine, take down the PS and clean it, Clean the worktable to ensure the verticality of the workpiece, and then place the side of PS flat on the worktable for magnetization; Light this surface of the workpiece, control the allowance, and then take the workpiece out of the PS. here, we must pay attention to that the burrs of the workpiece must be cleaned, and the worktable must be cleaned, otherwise the perpendicularity of the workpiece will be affected.
对工件进行检测，把通过检测仪器测出工件的垂直度，前后相差多少丝，若垂直度不合格，工件通过上述方法再次对工件进行打直角处理；在公差范围内合格，再对其它两个面进行碾磨加工，把工件的尺寸加工到位，值得注意的事，不同的工件有不同的加工方式和方法，无论加工那个面，都要把工件的毛刺除干净，机台台面擦干净，以确保工件的精度。
Detect the workpiece, measure the perpendicularity of the workpiece through the detection instrument, and the difference between the front and back. If the perpendicularity is unqualified, the workpiece shall be right angled again through the above methods; If it is qualified within the tolerance range, grind the other two surfaces and process the dimensions of the workpiece in place. It is worth noting that different workpieces have different processing methods and methods. No matter which surface is processed, the burr of the workpiece shall be removed and the machine table surface shall be wiped clean to ensure the accuracy of the workpiece.
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