Method for locking and pressing false boss

A process boss and stop technology, which is applied in the direction of manufacturing tools, metal processing equipment, metal processing machinery parts, etc., can solve the problems of increased process and cost, process boss rotation, and insufficient pressing force, so as to reduce displacement and The effect of rotating amount, preventing crushing and easy installation

Inactive Publication Date: 2019-04-12
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of adding pins requires additional processes and costs. In addition, the displacement of the process boss can be reduced to a certain extent by adding a compression washer. However, if the installation is n

Method used

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  • Method for locking and pressing false boss
  • Method for locking and pressing false boss
  • Method for locking and pressing false boss

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1:

[0030] The present invention is realized through the following technical solutions, such as Figure 1-Figure 3 As shown, a method for stopping and compressing the process boss 8 is to select a compression screw according to the position and size of the process boss 8 of the part 6, and process one on the process boss 8 and the tooling 5 to form a plane with the tooling 5. A stepped through hole with an included angle α, the small ends of the two stepped through holes are connected to form a compression screw hole for installing a compression screw; install and tighten the tightening screw in the compression screw hole, so that the tooling 5 and the part 6 are in close contact .

[0031] It should be noted that, through the above improvements, the use of an angled compression screw to fix the process boss 8 of the part 6 can increase the radius of the compression force, and increase the torque under the same compression force to help reduce the process boss 8 D...

Example Embodiment

[0033] Example 2:

[0034] This embodiment is further optimized on the basis of the above embodiment as figure 1 As shown, further, in order to better implement the present invention, it specifically includes the following steps:

[0035] Step S1: According to the structural characteristics of the process boss 8 and the tooling 5, the position of the cut-in end 4 and the cut-out end 3 when the process boss 8 is removed, determine the screw inclination direction, set the screw inclination angle α, and calculate the corresponding screw Length L;

[0036] Step S2: Determine the longitudinal axis of the compression screw hole according to the bottom plane profile of the process boss 8 and the screw inclination angle; the longitudinal axis is parallel to the side surface of the tooling 5.

[0037] Step S3: Select appropriate screw diameter specifications according to the width of the process boss 8 and the processing stability requirements, and determine the specific sizes of the nut 1 and...

Example Embodiment

[0042] Example 3:

[0043] This embodiment is further optimized on the basis of the above embodiment, such as figure 1 As shown, further, in order to better implement the present invention, the screw tilt direction is that the side of the screw away from the tooling 5 is tilted toward the cut-out end 3, and the tilt angle α<90°.

[0044] Further, in order to better implement the present invention, the length of the tooling 5 along the longitudinal axis of the compression screw is H2, and the length of the process boss 8 along the longitudinal axis of the compression screw is H1; The length of the screw 2 in the screw is L, said L

[0045] It should be noted that, through the above improvements, the use of the above can even effectively ensure that the length of the screw is always thinner than the thickness of the process boss 8 and the thickness of the tooling 5. It can effectively prevent the screw from being too long to pass through the screw and affecting the process...

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Abstract

The invention discloses a method for locking and pressing a false boss. A pressing screw is selected according to the position and the size of the false boss, stepped through holes are machined in thefalse boss and a tool, included angles alpha are formed between the stepped through holes and a tool plane, and the small ends of the two stepped through holes communicate to form a pressing screw hole for mounting of the pressing screw. The pressing screw is mounted and screwed in the pressing screw hole, so that the tool and a part are attached. The method has the beneficial effects that the situation that the false boss rotates when the false boss is removed through numerical control machining of the part can be effectively avoided, the method can also be used for large-allowance fixation,the pressing reliability is improved, and the part is prevented from being scratched.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to a method for stopping and pressing a process boss. Background technique [0002] With the continuous optimization and improvement of modern design methods and processing methods, various parts are gradually developing in the direction of large-scale, complex and integrated, the processing cycle is shortening day by day, and the requirements for processing quality are gradually increasing. In order to improve the processing efficiency of parts, at this stage, aluminum alloy, titanium alloy and stainless steel parts are mostly processed by CNC machining, and process bosses are added to the parts to fix and align the parts. With the gradual increase in the number of process bosses of parts, in order to improve the processing efficiency of parts, it is usually required to remove most of the process bosses in the process of CNC machining. [0003] The process boss...

Claims

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Application Information

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IPC IPC(8): B23Q3/06
CPCB23Q3/06
Inventor 黄方林胡颖晓罗广权王绍江
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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