Profile tolerance detection tool for small and medium-sized castings with annular conical surface structures

Abstract

The utility model discloses a tool for detecting the profile tolerance of a small and medium-sized casting with an annular conical surface structure, and the tool comprises a tool seat which is internally provided with a conical through hole consistent with the angle of the annular conical surface of the casting. An angular positioning block is detachably fixed to the axial face of the tool base through a fixing screw rod, and an angular positioning pin for fixing the angular position of a casting is installed on the angular positioning block. The tool further comprises a go-no go gauge used for being plugged into the gap between the inner diameter face of the tool base and the outer diameter face of the casting. After the casting is installed in the conical through hole of the tool base, an interval space is formed between the inner diameter face of the tool base and the outer diameter face of the casting, go-no go gauges of different sizes are plugged into the interval space between the inner diameter face of the tool base and the outer diameter face of the casting, and whether the profile tolerance of the conical surface structure of the casting is qualified or not is checked through direct vision. The problem that the detection efficiency is low due to the fact that an object to be scanned needs to be placed on a storage rack and then is rotationally scanned and analyzed is solved.

Description

Technical Field

[0001] This utility model relates to a tooling for detecting the contour of small and medium-sized castings with an annular conical surface structure, and belongs to the field of casting inspection tooling technology. Background Technology

[0002] Small and medium-sized castings with annular conical surface structures, such as Figure 2 As shown, after production is completed, it is necessary to check whether the profile (taper) of the annular conical surface meets the requirements.

[0003] Existing technologies for inspecting the contour of conical structures typically employ blue light scanning (see Chinese Patent Publication No. CN114910017B). However, this method requires placing the object to be scanned on a shelf before rotating it for analysis, resulting in low detection efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a tooling for detecting the contour of small and medium-sized castings with an annular conical surface structure.

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

[0006] This utility model provides a tooling for detecting the contour of small and medium-sized castings with an annular conical surface structure, comprising:

[0007] The tooling base has a tapered through hole with an angle consistent with the annular conical surface of the casting.

[0008] The tooling base has an angular positioning block that is detachably fixed to its axial surface by a fixing screw, and an angular positioning pin that fixes the angular position of the casting is installed on the angular positioning block.

[0009] It also includes a go / no-go gauge for inserting into the gap between the inner diameter surface of the tooling seat and the outer diameter surface of the casting.

[0010] The bottom of the tapered through hole is stepped.

[0011] The tooling base on the inner side of the tapered through hole is provided with multiple spaced receiving grooves.

[0012] The tooling base is symmetrically fixed with lifting rods on its outer periphery.

[0013] The lifting rods located on the same side of the outer periphery of the tooling base are a pair, and the two pairs of lifting rods are symmetrically and detachably fixed to the outer periphery of the tooling base by threads.

[0014] The go and no-go gauges are multiple of different sizes.

[0015] The beneficial effects of this utility model are as follows: After the casting is installed into the tapered through hole of the fixture, there is a gap between the inner diameter surface of the fixture and the outer diameter surface of the casting. By inserting go and no-go gauges of different sizes into the gap between the inner diameter surface of the fixture and the outer diameter surface of the casting, the conformity of the tapered surface structure of the casting can be checked by direct visual inspection. Since it is not necessary to rotate and scan the casting for analysis, the problem of low detection efficiency caused by placing the object to be scanned on the shelf and then rotating and scanning it for analysis is solved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of the testing tooling of this utility model and the casting testing process;

[0017] Figure 2 This is a schematic diagram of the structure of the casting of this utility model;

[0018] In the figure: 1-tooling base; 2-casting; 11-tapered through hole; 21-radial protrusion; 3-lifting rod; 4-go / no-go gauge; 5-fixing screw; 6-angular positioning block; 7-angular positioning pin. 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 Figure 1 As shown.

[0021] This application discloses a tooling for detecting the contour of small and medium-sized castings with an annular conical surface structure, comprising:

[0022] The tooling base 1 has a tapered through hole in the middle, and the angle of the tapered surface of the tapered through hole is consistent with the angle of the annular tapered surface of the casting 2. The bottom of the tapered through hole is a step, and the axial bottom surface of the step is used to support the casting 2.

[0023] The tooling base 1 on the inner side of the tapered through hole 11 is provided with a plurality of spaced receiving grooves 11, which are used to receive the radial protrusions 21 on the casting 2.

[0024] The tooling base 1 is symmetrically fixed with lifting rods 3 on its outer periphery. The lifting rods 3 located on the same side of the outer periphery of the tooling base 1 are a pair, and the two pairs of lifting rods 3 are symmetrically and detachably fixed to the outer periphery of the tooling base 1 by threads.

[0025] The tooling base 1 has an angular positioning block 6 that is detachably fixed on its axial surface by a fixing screw 5. An angular positioning pin 7 that fixes the angular position of the casting 2 is installed on the angular positioning block 6.

[0026] It also includes a go / no-go gauge 4 for inserting into the gap between the inner diameter surface of the tooling seat 1 and the outer diameter surface of the casting 2. The go / no-go gauge 4 consists of multiple gauges of different sizes, and the size of the go / no-go gauge 4 is manufactured according to the smallest to the largest gap size.

[0027] The casting 2 is placed on the tapered through hole of the fixture 1, and the axial bottom surface of the casting 2 contacts the axial bottom surface of the tapered through hole of the fixture 1 to obtain support. The radial protrusion 21 on the casting 2 is accommodated by the multiple spaced receiving grooves 11 on the fixture 1. The go and no-go gauges 4 of different sizes are inserted into the space between the inner diameter surface of the fixture 1 and the outer diameter surface of the casting 2. The contour of the tapered surface of the casting 2 is checked by direct visual inspection to see if it is qualified. Since it is not necessary to rotate and scan the casting 2 for analysis, the problem of low detection efficiency caused by placing the object to be scanned on the shelf and then rotating and scanning it for analysis is solved.

Claims

1. A fixture for detecting the contour of small and medium-sized castings with an annular conical surface structure, characterized in that, include: Tooling base (1) has a tapered through hole with the same angle as the annular conical surface of the casting (2).

2. The fixture for detecting the contour of small and medium-sized castings with an annular conical surface structure as described in claim 1, characterized in that: The tooling base (1) has an angular positioning block (6) detachably fixed on its axial surface by a fixing screw (5), and an angular positioning pin (7) for fixing the angular position of the casting (2) is installed on the angular positioning block (6).

3. The fixture for detecting the contour of small and medium-sized castings with an annular conical surface structure as described in claim 2, characterized in that: It also includes a go / no-go gauge (4) for inserting into the gap between the inner diameter surface of the tooling seat (1) and the outer diameter surface of the casting (2).

4. The fixture for detecting the contour of small and medium-sized castings with an annular conical surface structure as described in claim 1, characterized in that: The bottom of the tapered through hole is stepped.

5. The fixture for detecting the contour of small and medium-sized castings with an annular conical surface structure as described in claim 1, characterized in that: The tooling seat (1) on the inner side of the tapered through hole (11) is provided with a plurality of spaced receiving grooves (11).

6. The tooling for detecting the contour of small and medium-sized castings with an annular conical surface structure as described in claim 1, characterized in that: The tooling base (1) has lifting rods (3) symmetrically fixed on its outer peripheral side.

7. The tooling for detecting the contour of small and medium-sized castings with an annular conical surface structure as described in claim 6, characterized in that: The lifting rods (3) located on the same side of the outer periphery of the tooling seat (1) are a pair, and the two pairs of lifting rods (3) are symmetrically and detachably fixed to the outer periphery of the tooling seat (1) by threads.

8. The tooling for detecting the contour of small and medium-sized castings with an annular conical surface structure as described in claim 2, characterized in that: The go / no-go gauge (4) consists of multiple gauges of different sizes.

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