一种镁合金壳体孔径检测装置

Abstract

本实用新型公开了一种镁合金壳体孔径检测装置，包括台架，所述台架的后部顶面固定有向上延伸的后背板架，后背板架的前方的台架的顶面固定有上水平板，上水平板的顶面的后部固定有两个塞规放置架，塞规放置架上的水平板上放置有多个用于测量塞规检测体是否标准的圆形标准环体；它只需插入一次即可，通过其插入对应的通孔后，其气压的改变，观察其尺寸是否符合要求，其检测精度高，效果好，效率高。

Claims

1. A magnesium alloy housing bore diameter inspection apparatus comprising a gantry (10) characterised in that: The rear top surface of the stand (10) is fixed with an upwardly extending back plate frame (20), and the top surface of the stand (10) in front of the back plate frame (20) is fixed with an upper horizontal plate (11). The rear part of the top surface of the upper horizontal plate (11) is fixed with two plug gauge placement frames (30). Multiple circular standard rings (31) for measuring whether the plug gauge test body (41) is standard are placed on the horizontal plate of the plug gauge placement frame (30). Multiple forward-extending connecting blocks (21) are fixed on the front wall of the rear panel frame (20). A circular stepped through hole (22) extending downward and extending out of the bottom surface of the connecting block (21) is formed in the middle of the top surface of the connecting block (21). A front through groove (23) extending forward and extending out of the front wall of the circular stepped through hole (22) is formed on the front side wall. The distance between the left and right side walls of the front through groove (23) is equal to the inner diameter of the lower small diameter hole section of the circular stepped through hole (22). A plug gauge holding rod (40) is inserted into the circular stepped through hole (22). The bottom of the plug gauge holding rod (40) extends out of the bottom end of the circular stepped through hole (22) and a plug gauge testing body (41) is formed or fixed thereon.

2. The magnesium alloy housing bore detection apparatus of claim 1, wherein: The top of the plug gauge holding rod (40) is screwed with a limiting connector (42) with an outer diameter larger than that of the plug gauge holding rod (40). The limiting connector (42) is inserted into the upper large-diameter hole section of the corresponding circular stepped through hole (22), and its bottom surface presses against the bottom end face of the upper large-diameter hole section of the corresponding circular stepped through hole (22). The outer side wall of the limiting connector (42) is cylindrical, and its outer side wall is close to or closely attached to the inner side of the upper large-diameter hole section of the corresponding circular stepped through hole (22). The upper outer side wall of the plug gauge holding rod (40) is close to the inner side wall of the lower small-diameter hole section of the corresponding circular stepped through hole (22).

3. The magnesium alloy housing bore detection apparatus of claim 2, wherein: The middle part of the plug gauge holding rod (40) is a vertical through hole running vertically through the top and bottom. The top and bottom inner walls of the vertical through hole are both formed with internal threads. The threaded part formed in the middle of the bottom end face of the limiting connector (42) is screwed onto the internal thread in the upper part of the vertical through hole. The top of the plug gauge body (41) is formed with a threaded part, which is screwed onto the internal thread in the lower part of the vertical through hole.

4. The magnesium alloy housing bore detection apparatus of claim 3, wherein: The top surface of the limiting connector (42) is formed with an upper vertical through hole extending downward and extending out of the bottom surface of the threaded part. The upper vertical through hole communicates with the vertical through hole. The top surface of the threaded part of the plug gauge detection body (41) is formed with a downward extending central hole. Radial holes (411) extending towards the center are formed on the left and right side walls of the plug gauge detection body (41). The inner end of the radial hole (411) communicates with the bottom end of the central hole. A vent connector (412) is fixed at the top of the threaded part of the plug gauge detection body (41). The vent connector (412) communicates with the central hole. The vent connector (412) is inserted into the vertical through hole of the plug gauge detection grip rod (40).

5. The magnesium alloy housing bore inspection apparatus of claim 4, wherein: Vertical air guide grooves (413) are formed on the outer side walls of the plug gauge detection body (41) on both sides of the outer end of the radial hole (411). The top and bottom ends of the vertical air guide grooves (413) extend out of the top and bottom surfaces of the plug gauge detection body (41). The outer side wall of the plug gauge detection body (41) is a cylindrical side wall.

6. The magnesium alloy housing bore inspection apparatus of claim 2, wherein: The upper large-diameter hole section of the circular stepped through hole (22) has a side through hole that extends laterally outward. The proximity sensor (1) is inserted into the side through hole. The top surface of the side through hole has a vertical screw hole that extends upward. The positioning stud is screwed into the vertical screw hole. Its bottom end is pressed against the top surface of the proximity sensor (1). The bottom surface of the proximity sensor (1) is pressed against the bottom surface of the side through hole. The sensing end of the proximity sensor (1) is close to the outer side wall of the corresponding limiting connector (42).

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