Stainless Steel Our company is also One of the Powerful Company In the Stainless Steel Coil field With about 15 years. Stainless Steel Coil,Stainless Steel Sheet,Stainless Steel Wire,Stainless Steel Bar,Stainless Steel Pipe Ningbo Ningshing Trading Group Inc. , https://www.ningshingglobal.com
New energy electric vehicles The installation of low-speed electric vehicles is an important problem in machining. It not only directly affects the machining accuracy, the speed and stability of the workpiece installation, but also affects the productivity. In order to ensure the relative positional accuracy between the machined surface and its design reference, the workpiece should be installed with the design reference of the machined surface in the correct position relative to the machine tool. For example, in order to ensure the circular runout of the bottom diameter of the ring groove and the axis of the skirt, the design of the workpiece must be aligned with the axis of the machine tool spindle.
There are a variety of different mounting methods when machining parts on a variety of different machine tools. The mounting method can be summarized into three types: direct alignment method, line drawing method, and fixture mounting method.
(1) Direct Alignment Method When this method is used, the correct position that the workpiece should occupy on the machine tool is obtained through a series of attempts. The specific way is to directly mount the workpiece on the machine tool, and use the stylus on the dial gauge or the stylus to correct the correct position of the workpiece by visual inspection, and check the side until it meets the requirements.
The accuracy of the direct alignment method and the speed of the alignment are determined by the accuracy of the alignment, the alignment method, the alignment tool, and the skill level of the worker. Its shortcomings are that it takes a lot of time, has low productivity, and has to be operated by experience. It has high requirements on workers' technology, so it is only used in single-piece and small-batch production. If you rely on the imitation of the shape of the body, it is directly to find the right way.
(2) Scribe Alignment Method This method is a method of aligning a workpiece on a machine tool with a scriber to draw a correct line on the blank or semi-finished product. Obviously, this method requires one more scribing process. The drawn line itself has a certain width, and there is a scribe error in the scribe line. There is also an observation error when correcting the position of the workpiece. Therefore, the method is mostly used for small batch production, low blank precision, and large workpieces and the like are not suitable for use. In the roughing process. For example, the position of the pin hole of the two-stroke product is determined by the scribing method of the indexing head.
(3) Fixture installation method: The process equipment for clamping the workpiece so that it occupies the correct position is called the machine tool fixture. The fixture is an additional device of the machine tool. It is pre-adjusted on the machine tool relative to the position of the tool before the workpiece is installed. Therefore, it is not necessary to find the positioning one by one when machining a batch of workpieces, so that the technical requirements of the machining can be guaranteed. It saves labor and saves trouble. It is an efficient positioning method and is widely used in batch and mass production. Our current piston machining is the fixture installation method used.
1) After the workpiece is positioned, the operation of keeping the positioning position constant during the machining process is called clamping. The means in the fixture that keeps the workpiece in position during machining is called a clamping device.
2) The clamping device should meet the following requirements: When clamping, the positioning of the workpiece should not be damaged; after clamping, the position of the workpiece should not be changed during the machining process, and the clamping is accurate, safe and reliable; The action is quick, the operation is convenient and labor-saving; the structure is simple and the manufacturing is easy.
3) Precautions during clamping: The clamping force should be appropriate. If the workpiece is too deformed, the workpiece will be displaced during the machining process and the workpiece will be damaged.
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Our Stainless Steel Sheet series include Hot and Cold Rolled 200, 300, 400 series, with brands like TISCO, LISO, Bao Steel, Tsingshan, Wuhang, ESS, etc., the types include Stainless Steel Pipe, coil, sheet, rod, strip, as well as some semi-finished product like circle, pre-pressed sheet, etc.
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In order to machine a surface that meets the specified technical requirements on a part of the workpiece, the workpiece must occupy a correct position on the machine tool relative to the tool before machining. This process is often referred to as the "positioning" of the workpiece. After the workpiece is positioned, due to the cutting force, gravity, etc. during machining, a certain mechanism should be used to "clamp" the workpiece so that the determined position remains unchanged. The process of taking the workpiece to the correct position on the machine and clamping the workpiece is called "installation."