Method for processing hole provided with dimensional tolerance away from seamed edge on acute angle section
A technology of sharp angles and angles, which is applied in metal processing equipment, manufacturing tools, boring/drilling, etc., can solve problems such as unguaranteed, difficult processing methods for positioners, high tolerance requirements, etc., and achieve the effect of improving processing efficiency
Inactive Publication Date: 2010-12-08
沈阳百祥机械加工有限公司
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Problems solved by technology
[0002] In the manufacturing process of aircraft assembly tooling, there are often some acute-angle angle locators, and there is a positioning hole on one of the acute-angle surfaces, and the positioning hole has a dimensional tolerance requirement from the edge of the angle locator; such locators The processing method has always been a difficult problem, because when machining a hole on a boring machine, the process reference should be one surface, and the edge as a process reference cannot guarantee a higher tolerance requirement. The previous processing method is to add The process hole is used to transfer the size; the problems of this method are: ①Adding a process hole on the side of the angle bar locator destroys the structure of the original angle bar locator; ②The calculation of the size of the process hole is complicated and increases the workload of the boring machine
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[0019] The processing method of the hole with dimensional tolerance from the edge on the acute angle angle material, the steps are as follows:
[0020] 1) Prepare the tool pin: the diameter D and length of the tool pin can be selected according to the needs, and the diameter tolerance should be h6 tolerance;
[0021] 2) Put the acute-angle angle material locator on the boring machine workbench, and fix the acute-angle surface with the positioning hole on the workbench (what is the meaning of positioning);
[0022] 3) Put the tool pin on one side of the sharp angle and fix it with glue;
[0023] 4) Calculate the distance between the far point of the diameter of the tool pin and the center point of the positioning hole:
[0024] Calculation formula: L3=L+L1+L2
[0025] L1=D / 2
[0026] L2=D / 2×tanβ / 2
[0027] β=α
[0028] 5) Machining the positioning hole: the boring machine uses the diameter of the tool pin to find the far point, and processes it according to the L3 size.
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Abstract
A method for processing hole provided with dimensional tolerance away from seamed edge on acute angle section is used for processing a hole away from a seamed edge on an acute angle section. The method comprises the following steps of: 1) preparing a pin provided with diameter D and length which can be chosen according to requirement and with diameter tolerance of h6 level; 2) placing an acute angel section localizer on a boring lathe table and localizing an acute angle face provided with a localizing hole on the table surface; 3) leading the pin to cling to one side face of the acute angle section and fixing the pin with glue; 4) figuring out the distance between far point of the pin diameter and the central point of the localizing hole with a formula: L3 equals L plus L1 plus L2, L1 equals D / 2, L2 equals D / 2 multiplied tan beta / 2, and beta equals alpha; and 5) processing the localizing hole in a way that the boring lathe adopts the far point of the pin diameter to obtain alignment tocarry out processing according to the size of L3. The method has the advantages of preserving the structure of the original acute angel section localizer and enhancing the efficiency for processing the acute angel section localizer.
Description
Technical field: [0001] The invention is a processing method for processing holes with dimensional tolerances from edges on acute-angled angle materials. Background technique: [0002] In the manufacturing process of aircraft assembly tooling, there are often some acute-angle angle locators, and there is a positioning hole on one of the acute-angle surfaces, and the positioning hole has a dimensional tolerance requirement from the edge of the angle locator; such locators The processing method has always been a difficult problem, because when machining a hole on a boring machine, the process reference should be one surface, and the edge as a process reference cannot guarantee a higher tolerance requirement. The previous processing method is to add The process hole is used to transfer the size; the problems of this method are: ①Adding a process hole on the side of the angle bar locator destroys the structure of the original angle bar locator; ②The calculation of the size of th...
Claims
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IPC IPC(8): B23B41/00
Inventor 梁丽岩
Owner 沈阳百祥机械加工有限公司