Method for machining deep holes
A processing method and deep hole technology, applied in the field of deep hole processing, can solve problems such as high cost, difficult processing, and difficult to guarantee accuracy, and achieve the effects of improving tool rigidity, processing efficiency, and processing accuracy
Inactive Publication Date: 2012-01-04
湖南凯斯机械股份有限公司
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[0004] In order to overcome the shortcomings of high processing difficulty, high cost and difficult to guarantee precision in the processing of deep holes, the present invention proposes a new processing method using guide sleeves
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[0014] Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail as follows:
[0015] The large transmission box 1 is required to ensure the concentricity and position of holes ①-⑤, and the workpiece is processed on a horizontal turntable.
[0016] The first step: Rough machining: use a short and rigid tool to roughly machine hole ① and hole ②;
[0017] Step 2: Put the rough boring tool 3 deep into the inner side of the hole ②, put the rough boring guide sleeve 2 into the hole ②, guide the rough boring tool 3 and rough bore the holes ③ and ④, see image 3 ;
[0018] The rough boring guide sleeve 2 is composed of two half cylinders, the axial direction forms a step due to the different outer diameter, there are 2-3 circular oil grooves evenly distributed on the inner surface perpendicular to the axis, and there are evenly distributed oil grooves on the inner surface 2-3 linear oil grooves parallel to the axis, the ...
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The invention relates to a method for machining deep holes. In the method, the deep holes are subjected to rough machining and finish machining by a guiding sleeve, wherein during the rough machining, holes on the outer side in the same direction are subjected to the rough machining by a short cutter with high rigidity, the guiding sleeve is arranged at the outer holes which are subjected to the rough machining, and a rough boring cutter enters the sleeve to play roles in guiding and supporting and perform rough boring on deep holes on the inner side; and during the finish machining, the holes at two ends of the outer side are subjected to the finish machining by the short cutter with the high rigidity in two directions, the guiding sleeve is arranged at the hole at one end, and a finish boring cutter enters the sleeve from the other end to play roles in guiding and supporting and perform finish boring on the deep holes on the inner side. By the method, the problems in the conventional method are solved. The method has the advantages that: 1, the rough and finish boring of the deep holes play a role of correcting for multiple times; 2, the deep holes are machined by the guiding ofthe high-accuracy outer holes, so the requirement of concentricity is easily met; 3, the guiding sleeve plays the role in supporting, and the rigidity of the cutter during the machining is improved, so the machining accuracy is improved; and 4, the machining efficiency is improved substantially.
Description
technical field [0001] The invention relates to a deep hole processing method, in particular to a deep hole processing method with higher concentricity precision requirements. Background technique [0002] For a long time, the traditional method used in horizontal machining of deep holes. For example, for a large transmission case, the traditional method is to process the outer hole with a short tool with better rigidity, and use a boring process to process the deep hole with an extended tool. [0003] Problems in this processing method: 1. Due to the obstruction of the outer hole, the tool for processing the deep hole must be added to be long enough. 2. If the tool shaft is thin, the tool rigidity is poor, and the boring cannot play a corrective role, resulting in poor concentricity of the hole. 3. If the tool shaft is thick, the tool will have a heavy weight, and the downward force will seriously affect the position of the processed deep hole, resulting in poor concentri...
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IPC IPC(8): B23B35/00
Inventor 徐家安王伟
Owner 湖南凯斯机械股份有限公司