Fixing device for drilling and tapping of end cover
A technology of fixing device and end cap, applied in the field of machining, can solve the problems of deflection of the two-hole circle center line, time-consuming and laborious installation and disassembly, and metal fatigue, so as to reduce the cumulative deviation, facilitate the clamping of end caps, and have high machining accuracy. Effect
Pending Publication Date: 2022-05-03
SHANGHAI GUOSHANG ELECTROMECHANICAL TECH
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Problems solved by technology
Although it can also complete the process of drilling first and then tapping, but the inner support positioning sleeve is used to insert the inner circle of the end cover blank, and then the movable positioning V-shaped fork is used to withstand the outward convex arc. Time-consuming
Moreover, the elastic element and the positioning V-shaped fork have general stability and cannot be used for a long time
The original tooling has metal fatigue and insufficient elasticity
In addition, the V-shaped fork positioned at the R angle of the blank is used. Due to the allowable deviation and deformation of the R angle casting, the line connecting the centers of the two holes is deflected during drilling. This R angle cannot be used as a good positioning point.
Even with two positioning V-forks (one fixed, one movable), the deflection problem cannot be improved
Method used
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[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
[0027] An end cover drilling and tapping fixing device, such as Figure 1-Figure 3 shown, including:
[0028] The bottom plate 1 and the positioning mechanism that are all arranged on the bottom plate 1 to limit the horizontal movement of the end cover 2 to be processed (that is, the X-axis and the Y-axis direction), and are used to limit the vertical vibration of the end cover 2 to be processed (that is, the Z axis) Axial direction) limit mechanism;
[0029] The end cap 2 to be processed is provided with a boss 41, and the positioning mechanism includes a positioning circular groov...
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The invention relates to an end cover drilling and tapping fixing device which comprises a bottom plate, a positioning mechanism and a limiting mechanism. The positioning mechanism and the limiting mechanism are arranged on the bottom plate and used for limiting horizontal movement of a to-be-machined end cover, and the limiting mechanism is used for limiting vertical vibration of the to-be-machined end cover. The end cover to be machined is provided with a boss, the positioning mechanism comprises a positioning circular groove matched with the end cover to be machined and a positioning pin supporting the boss to limit rotation of the end cover to be machined, and the limiting mechanism comprises a pressing plate and a pressing plate connecting piece fixing the pressing plate to the bottom plate. Compared with the prior art, through the arrangement of the positioning circular groove and the positioning pin, the deflection problem of the end cover in the drilling and tapping process after long-term use can be solved.
Description
technical field [0001] The invention relates to the field of machining, in particular to a drilling and tapping fixing device for an end cover. Background technique [0002] Chinese patent CN110653662A discloses a device for processing end cap drilling and tapping, including a bottom plate and a positioning mechanism installed on the bottom plate and a limit mechanism used in conjunction with the positioning mechanism. The positioning mechanism includes X-axis, Y-axis, Z The positioning mechanism in the direction of the axis, the limit mechanism includes limit mechanisms in the directions of the X axis, the Y axis and the Z axis. Although it can also complete the process of drilling first and then tapping, it adopts the method of inserting the inner supporting positioning sleeve into the inner circle of the end cap blank, and then uses the movable positioning V-shaped fork to withstand the outward convex arc. Time-consuming. And the elastic element and the positioning V-sh...
Claims
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IPC IPC(8): B23Q3/06
CPCB23Q3/062
Inventor 胡晓桦于志国王佳伟
Owner SHANGHAI GUOSHANG ELECTROMECHANICAL TECH