Tool for measuring roundness of casing type casting

Abstract

The utility model discloses a tool for measuring the roundness of a casing type casting. The tool comprises an annular positioning table serving as a stress foundation; and the plurality of roundness detection columns are distributed on the annular positioning table in a circumferential array at intervals. The end portions of the plurality of roundness detection columns which are arranged at intervals in a circumferential array mode correspond to the casing type casting, the feeler gauge is plugged between the end portions of the roundness detection columns and the casing type casting, roundness deviation values, corresponding to the end portions of the roundness detection columns, of a plurality of positions of the periphery of the casing type casting are detected, and the roundness of the casing type casting which is integrally in a circular ring shape is detected.

Description

Technical Field

[0001] This utility model relates to a roundness measuring tool for casing-type castings, belonging to the field of casting measuring tool technology. Background Technology

[0002] For ring-shaped casing castings, roundness testing is required during production. Manual inspection with calipers is prone to omissions due to the limited cross-sections examined. Therefore, measuring instruments are necessary to test the roundness of casing castings.

[0003] The current roundness testing tool technology, as described in Chinese Patent Publication No. CN212512844U, can only detect the roundness of a single part and cannot detect the roundness of a casing-type casting that is an entire ring. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a roundness measuring tool for casing-type castings.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a roundness measuring tool for casing-type castings, comprising:

[0007] The annular positioning platform serves as the load-bearing foundation;

[0008] Multiple roundness detection columns are arranged in a circumferential array on a ring-shaped positioning platform.

[0009] The annular positioning platform is provided with locking holes arranged in a circumferential array, and the locking holes penetrate axially through the annular positioning platform.

[0010] The locking holes are spaced at an angle of twenty degrees on the annular positioning platform.

[0011] The annular positioning platform is made of metal.

[0012] The roundness detection column has diameter positioning holes spaced at intervals in a linear array.

[0013] The annular positioning platform is provided with angular holes in the radial direction. The angular holes are perpendicularly distributed and penetrate the locking holes. The roundness detection column can be inserted from the angular holes so that the diameter positioning hole corresponds to the locking hole.

[0014] It also includes a positioning pin, which is inserted through the locking hole on the annular positioning platform, with the middle of the positioning pin passing through the diameter positioning hole at the corresponding position of the roundness detection column.

[0015] The beneficial effects of this utility model are as follows: the ends of multiple circumferentially spaced roundness detection columns correspond to the casing-type castings. By inserting feeler gauges between the ends of the roundness detection columns and the casing-type castings, the roundness deviation values ​​of multiple points on the outer periphery of the casing-type castings corresponding to the ends of the roundness detection columns are checked, thus realizing the roundness detection of casing-type castings that are circular in shape. Attached Figure Description

[0016] Figure 1 This is a top view of the present invention;

[0017] Figure 2 yes Figure 1 Schematic diagram of the cross section of line AA in the middle;

[0018] In the figure: 1-ring positioning platform; 11-locking hole; 12-angular hole; 2-roundness detection column; 21-diameter positioning hole; 3-positioning pin; 4-casing casting. Detailed Implementation

[0019] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0020] like Figures 1 to 2 As shown.

[0021] This application discloses a roundness measuring tool for casing-type castings, comprising:

[0022] A circular positioning platform 1 is provided with locking holes 11 spaced apart in a circumferential array. The locking holes 11 pass through the annular positioning platform 1 axially. The spacing angle of the locking holes 11 on the annular positioning platform 1 is 20 degrees. The annular positioning platform 1 is made of metal.

[0023] It also includes multiple roundness detection columns 2, each with a linear array of diameter positioning holes 21 spaced at intervals. The annular positioning platform 1 has radially arranged angular holes 12 that are perpendicularly distributed through locking holes 11. The roundness detection columns 2 can be inserted through the angular holes 12, aligning the diameter positioning holes 21 with the locking holes 11. By aligning the diameter positioning holes 21 with the locking holes 11 at different locations, and inserting positioning pins 3, the roundness of casing-type castings 4 of different diameters can be detected.

[0024] It also includes a positioning pin 3, which is inserted through the locking hole 11 on the annular positioning table 1, and the middle part of the positioning pin 3 passes through the diameter positioning hole 21 at the corresponding position of the roundness detection column 2.

[0025] The casing-type casting 4 is located inside the annular positioning stage 1. The ends of multiple circumferentially spaced roundness detection columns 2 correspond to the casing-type casting 4. A feeler gauge is inserted between the end of the roundness detection column 2 and the casing-type casting 4 to check the roundness deviation values ​​at multiple points on the outer periphery of the casing-type casting 4 corresponding to the ends of the roundness detection columns 2. This enables the roundness detection of the casing-type casting, which is an entire ring.

Claims

1. A roundness measuring tool for casing-type castings, characterized in that, include: The annular positioning platform (1) serves as the load-bearing foundation; A number of roundness detection columns (2) are arranged in a circular array on a ring positioning stage (1).

2. The roundness measuring tool for casing-type castings as described in claim 1, characterized in that: The annular positioning platform (1) is provided with locking holes (11) arranged in a circular array at intervals, and the locking holes (11) penetrate axially from the annular positioning platform (1).

3. The roundness measuring tool for casing-type castings as described in claim 2, characterized in that: The locking holes (11) are spaced at an angle of twenty degrees on the annular positioning platform (1).

4. The roundness measuring tool for casing-type castings as described in claim 1, characterized in that: The annular positioning platform (1) is made of metal.

5. The roundness measuring tool for casing-type castings as described in claim 1, characterized in that: The roundness detection column (2) has diameter positioning holes (21) arranged in a linear array at intervals, with multiple diameter positioning holes (21) at intervals.

6. The roundness measuring tool for casing-type castings as described in claim 1, characterized in that: The annular positioning platform (1) is provided with a angular hole (12) in the radial direction. The angular hole (12) and the locking hole (11) are perpendicularly distributed and penetrate each other. The roundness detection column (2) can be inserted from the angular hole (12) so that the diameter positioning hole (21) corresponds to the locking hole (11).

7. The roundness measuring tool for casing-type castings as described in claim 1, characterized in that... It also includes a positioning pin (3), which is inserted through the locking hole (11) on the annular positioning platform (1), and the middle part of the positioning pin (3) is inserted into the diameter positioning hole (21) at the corresponding position of the roundness detection column (2).

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