Method for machining multiple coaxial high-precision deep holes in box body movable assembly
A technology of movable components and processing methods, applied in metal processing equipment, metal processing mechanical parts, manufacturing tools, etc., can solve problems such as inapplicability, and achieve the effect of improving processing efficiency, processing accuracy and product quality
Active Publication Date: 2020-07-14
CHENGDU AIRCRAFT INDUSTRY GROUP
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Problems solved by technology
Therefore, the traditional coaxial hole processing methods are not suitable for the processing of multiple coaxial deep holes in movable components
Method used
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[0029] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.
[0030] Refer to the attached figure 2 , attached image 3 and attached Figure 4 As shown, this embodiment discloses a multi-coaxial high-precision deep hole processing method for box-type movable components, and the specific operation steps are as follows:
[0031] S1. Prefabricate coaxial deep holes and initial holes on the bracket 1, the upper cover of the box body 2 and the box body base 3 under the processing state of a single part;
[0032] S2. Based on the initial hole of the coaxial deep hole, put the first threaded pin 4 and the second threaded pin 5 into the above-mentioned initial hole respectively, for positioning and connecting the bracket 1 and the upper cover of the box body 2;
[0033] S3. Process the bracket auxiliary positioning hole 6 on the bracket 1 and the upper cover of the box bo...
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The invention relates to the technical field of coaxial hole machining, and discloses a method for machining multiple coaxial high-precision deep holes in a box body movable assembly. The method includes the steps that firstly, initial holes are prefabricated in a single part machining state, a bracket and a box body upper cover, and the box body upper cover and a box body base are positioned andconnected correspondingly through the initial holes, then the bracket, the box body upper cover and the box body base are assembled into the box body assembly through stepped pins, the box body assembly is fixed to a special tool, then the stepped pins are pulled out, and the coaxial holes of the box body assembly start to be bored. The machining difficulties that the position relation of parts inthe box body movable assembly is not fixed, the number of the coaxial holes of the assembly is large, and the depths of the holes are large are fully considered, the coaxiality and the position relation of the multiple holes can be simultaneously guaranteed during machining, and therefore the machining precision and the product quality of the box body movable assembly are improved.
Description
technical field [0001] The invention relates to the technical field of coaxial hole processing, in particular to a multi-coaxial high-precision deep hole processing method for box-type movable components. Background technique [0002] Box-type movable components are usually composed of multiple parts based on one or more coaxial holes. Each independent part has positioning holes and various guide holes for assembly and positioning with other mechanisms. The dimensional accuracy of the positioning holes and guide holes, The shape accuracy is high, and there is a hole position matching requirement with other parts, especially when there are multiple high-precision coaxial holes on the component, there are higher requirements for the processing quality of the part holes. [0003] At present, the processing method of the coaxial hole is mainly aimed at the processing of the single coaxial hole of the fixed component. There are two main processing methods. One is to process the c...
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IPC IPC(8): B23B35/00B23Q3/06
CPCB23B35/00B23Q3/062
Inventor 王琪张安顺黄景康王丰罗广权朱宇轲
Owner CHENGDU AIRCRAFT INDUSTRY GROUP