Flange detection tool

Abstract

The flange detection tool comprises a base, a positioning assembly, a position adjusting assembly and a micrometer, the base is provided with an installation through hole in the horizontal direction, the top surface of the base is provided with a rectangular installation groove, and the positioning assembly comprises an adjusting cylinder, two threaded rods and two positioning blocks. The two ends of the inner wall of the adjusting cylinder are provided with threads opposite in spiral direction, the adjusting cylinder penetrates through the mounting through hole and is movably connected with the mounting through hole, one ends of the two threaded rods are in threaded connection with the two ends of the adjusting cylinder respectively, and the other ends of the two threaded rods penetrate through the two positioning blocks and are fixedly connected with the two positioning blocks respectively. The micrometer is detachably connected to the end, away from the base, of the position adjusting assembly. A simple design is adopted, the circle center of the flange plate is positioned through the positioning assembly, and then the position adjusting assembly is adjusted according to the diameter of the flange or the position of the annular groove used for installing the sealing ring, so that the lower end of the micrometer is located at a proper position, and rapid detection of the flange plate is completed.

Description

Technical Field

[0001] This utility model relates to the field of flange production technology, and in particular to a flange inspection tooling. Background Technology

[0002] A flange, also called a flange plate or flange disc, is a part used to connect pipes to each other. It is also commonly used on the inlet and outlet of equipment, such as the connection between two pieces of equipment, such as a speed reducer flange.

[0003] Currently, after the flange is processed, quality inspectors generally need to inspect the surface of the flange. Among them, the flatness inspection of the flange or the inspection of the annular groove on the flange used to install the sealing ring is particularly important. The existing inspection is mostly carried out by a special flange inspection device. This device has a complex structure, high cost, and requires frequent flange transfer to complete the inspection, which is labor-intensive and time-consuming.

[0004] In view of this, there is an urgent need for a flange inspection fixture to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a flange inspection fixture that solves the above-mentioned problems.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a flange inspection fixture, comprising:

[0007] The system comprises a base, a positioning component, a position adjustment component, and a micrometer. The base has a horizontal mounting hole and a rectangular mounting groove on its top surface. The positioning component includes an adjusting cylinder, two threaded rods, and two positioning blocks. The inner wall of the adjusting cylinder has threads with opposite directions at both ends, and the adjusting cylinder passes through the mounting hole and is movably connected to it. One end of each of the two threaded rods is threaded to both ends of the adjusting cylinder, and the other end passes through the two positioning blocks and is fixedly connected to them. The position adjustment component is detachably connected to the top surface of the base, and the micrometer is detachably connected to the end of the position adjustment component away from the base.

[0008] Preferably, at least one annular groove is provided on the inner wall of the mounting through hole, and an annular protrusion matching the annular groove is provided on the outer wall of the adjusting cylinder.

[0009] Preferably, the position adjustment assembly includes a first rectangular block, a sleeve plate, a second rectangular block, and a rotating shaft. The first rectangular block is placed in a rectangular mounting groove. One end of the rotating shaft is fixedly connected to the middle position of the first rectangular block, and the other end is connected to the sleeve plate bearing. The second rectangular block is fixedly connected to the end of the sleeve plate away from the first rectangular block. The second rectangular block is provided with a vertical through hole and a first locking pin. The lower end of the micrometer passes through the vertical through hole, and one end of the first locking pin passes through the side wall of the second rectangular block and contacts the micrometer. The first locking pin is threadedly connected to the second rectangular block.

[0010] Preferably, the sleeve includes an outer sleeve, an inner sleeve, and a second locking pin. The inner sleeve is fitted inside the outer sleeve, and the second locking pin passes through the outer sleeve and contacts the inner sleeve. The top surface of the inner sleeve is provided with markings.

[0011] Preferably, the base is provided with an annular auxiliary groove, and the annular auxiliary groove is provided with a matching auxiliary component. The auxiliary component includes an extension plate, an auxiliary cylinder and a threaded cap. The extension plate is fixedly connected to the end of the sleeve plate away from the second rectangular block. The lower end of the auxiliary cylinder is located in the annular auxiliary groove, and its upper end passes through the extension plate and is threadedly connected to the threaded cap.

[0012] Preferably, the bottom surface of the positioning block and the bottom surface of the base are on the same horizontal plane.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The design is relatively simple. The center of the flange is quickly located by the positioning component. Then, the position adjustment component is adjusted according to the flange diameter or the position of the annular groove for installing the sealing ring, so that the lower end of the micrometer is in the appropriate position, thereby completing the rapid inspection of the flange. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a flange inspection fixture;

[0016] Figure 2 This is a schematic diagram of the base structure in this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the base in an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the second rectangular block in an embodiment of this utility model.

[0019] In the diagram: 1. Base; 10. Mounting through hole; 100. Annular groove; 11. Rectangular mounting slot; 12. Arc-shaped auxiliary groove; 2. Positioning component; 20. Adjusting cylinder; 200. Annular protrusion; 21. Threaded rod; 22. Positioning block; 3. Positioning component; 30. First rectangular block; 31. Sleeve plate; 310. Outer sleeve; 311. Inner sleeve plate; 3110. Scale markings; 312. Second locking pin; 32. Second rectangular block; 320. Vertical through hole; 321. First locking pin; 33. Rotating shaft; 4. Micrometer; 5. Auxiliary component; 50. Extension plate; 51. Auxiliary cylinder; 52. Threaded cap. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see the appendix Figure 1-4 A flange inspection fixture, comprising:

[0022] The system comprises a base 1, a positioning component 2, a position adjustment component 3, and a micrometer 4. The base 1 has a horizontal mounting through hole 10 and a rectangular mounting groove 11 on its top surface. The positioning component 2 includes an adjusting cylinder 20, two threaded rods 21, and two positioning blocks 22. The inner wall of the adjusting cylinder 20 has threads with opposite directions at both ends, and the adjusting cylinder 20 passes through and is movably connected to the mounting through hole 10. One end of each of the two threaded rods 21 is threaded to both ends of the adjusting cylinder 20, and the other end passes through and is fixedly connected to the two positioning blocks 22. The position adjustment component 3 is detachably connected to the top surface of the base 1, and the micrometer 4 is detachably connected to the end of the position adjustment component 3 away from the base 1.

[0023] In practical use, the base 1 and the positioning component 2 connected to it can be taken out separately. The base 1 is placed in the middle of the flange, and then the adjusting cylinder 20 is rotated. Since the threads at both ends of the adjusting cylinder 20 are opposite, the two threaded rods 21 connected to it will move away from the base 1 at the same time and gradually come into contact with the inner diameter of the flange until the position of the base 1 is completely fixed. During this process, it is important to note that the bottom surfaces of the two positioning blocks 22 are always in contact with the plane on which the flange is placed. Due to the synchronous movement of the two threaded rods 21, the center of the base 1 after the position is fixed coincides with the center of the flange. Then, the position adjusting component 3 is installed in the rectangular mounting slot 11 and the micrometer 4 is moved to the appropriate position for inspection.

[0024] Specifically, at least one annular groove 100 is provided on the inner wall of the mounting through hole 10, and an annular protrusion 200 matching the annular groove 100 is provided on the outer wall of the adjusting cylinder 20. Considering that the adjusting cylinder 20 needs to rotate to adjust the threaded rod 21, and the position of the base 1 cannot be changed, the combination of the annular groove 100 and the annular protrusion 200 can not only ensure the normal rotation of the adjusting cylinder 20, but also ensure that the position of the adjusting cylinder 20 does not change during the rotation.

[0025] Specifically, the position adjustment assembly 3 includes a first rectangular block 30, a sleeve plate 31, a second rectangular block 32, and a rotating shaft 33. The first rectangular block 30 is placed in the rectangular mounting groove 11. One end of the rotating shaft 33 is fixedly connected to the middle position of the first rectangular block 30, and the other end is connected to the sleeve plate 31 via a bearing. The second rectangular block 32 is fixedly connected to the end of the sleeve plate 31 away from the first rectangular block 30, and the second rectangular block 32 is provided with a vertical through hole 320 and a first locking pin 321. The lower end of the micrometer 4 passes through the vertical through hole 320, and one end of the first locking pin 321 passes through the side wall of the second rectangular block 32 and connects with the micrometer 4. The first locking pin 321 is threadedly connected to the second rectangular block 32. The position adjustment component 3 only needs to be able to move the micrometer 4. Considering the stability of the overall structure, a sleeve plate 31, a first rectangular block 30 and a second rectangular block 32 are used. By matching the first rectangular block 30 with the rectangular mounting groove 11, the installation and removal of the position adjustment component 3 and the base 1 can be completed quickly, avoiding mutual interference between the positioning component 2 and the position adjustment component 3 during use. The sleeve plate 31 not only has an adjustment function, but also has a certain degree of rigidity to prevent bending during adjustment.

[0026] Specifically, the sleeve 31 includes an outer sleeve 310, an inner sleeve 311, and a second locking pin 312. The inner sleeve 311 is sleeved inside the outer sleeve 310, and the second locking pin 312 passes through the outer sleeve 310 and contacts the inner sleeve 311. The top surface of the inner sleeve 311 is provided with marking scale 3110.

[0027] In actual use, after the position adjustment component 3 and the rectangular mounting groove 11 are installed by the second rectangular block 32, it is ensured that the rotation center of the sleeve 31 coincides with the center of the flange. Then, by loosening the second locking pin 312, the position of the inner sleeve 311 is adjusted, thereby changing the position of the second rectangular block 32. After adjustment, the second locking pin 312 is used to lock the position. Then, the first locking pin 321 is loosened, and the position of the micrometer 4 is adjusted so that the lower end of the micrometer 4 contacts the flange surface or the annular groove on the flange used to install the sealing ring. The reading of the micrometer 4 at this time is recorded (it is recommended to use a micrometer 4 with a smaller reading). Then, the sleeve 31 is rotated by the rotating shaft 33, and the change in the reading on the micrometer 4 is observed to determine the test result.

[0028] Specifically, the base 1 is provided with an annular auxiliary groove 12, and the annular auxiliary groove 12 is provided with a matching auxiliary component 5. The auxiliary component 5 includes an extension plate 50, an auxiliary cylinder 51, and a threaded cap 52. The extension plate 50 is fixedly connected to the end of the sleeve 31 away from the second rectangular block 32. The lower end of the auxiliary cylinder 51 is located in the annular auxiliary groove 12, and its upper end passes through the extension plate 50 and is threadedly connected to the threaded cap 52. Considering that the overall length of the sleeve 31 is relatively long, in order to further avoid the situation where the sleeve 31 tilts, To prevent errors in the test results, an auxiliary component 5 is installed at the end away from the second rectangular block 32. The auxiliary cylinder 51, the threaded cap 52, and the annular auxiliary groove 12 on the base 1 work together to balance the sleeve 31 and prevent the second rectangular block 32 from lifting up at one end. The auxiliary cylinder 51 and the annular auxiliary groove 12 are fitted together, for example, by using a convex auxiliary cylinder 51 and a concave annular auxiliary groove 12. This ensures that the auxiliary cylinder 51 can slide normally and that the lower end of the auxiliary cylinder 51 will not come out of the annular auxiliary groove 12.

[0029] Specifically, the bottom surface of the positioning block 22 is on the same horizontal plane as the bottom surface of the base 1.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flange inspection fixture, characterized in that, include: The base (1), positioning component (2), position adjustment component (3), and micrometer (4) are provided. The base (1) has a horizontal mounting through hole (10) and a rectangular mounting groove (11) on the top surface of the base (1). The positioning component (2) includes an adjusting cylinder (20), two threaded rods (21) and two positioning blocks (22). The inner wall of the adjusting cylinder (20) has threads with opposite spiral directions at both ends. The adjusting cylinder (20) passes through the mounting through hole (10) and is movably connected to it. One end of the two threaded rods (21) is threaded to both ends of the adjusting cylinder (20), and the other end passes through the two positioning blocks (22) and is fixedly connected to them. The position adjustment component (3) is detachably connected to the top surface of the base (1). The micrometer (4) is detachably connected to the end of the position adjustment component (3) away from the base (1).

2. The flange inspection fixture according to claim 1, characterized in that: At least one annular groove (100) is provided on the inner wall of the mounting through hole (10), and an annular protrusion (200) matching the annular groove (100) is provided on the outer wall of the adjusting cylinder (20).

3. The flange inspection fixture according to claim 1, characterized in that: The position adjustment assembly (3) includes a first rectangular block (30), a sleeve plate (31), a second rectangular block (32), and a rotating shaft (33). The first rectangular block (30) is placed in the rectangular mounting groove (11). One end of the rotating shaft (33) is fixedly connected to the middle position of the first rectangular block (30), and the other end is connected to the bearing of the sleeve plate (31). The second rectangular block (32) is fixedly connected to the end of the sleeve plate (31) away from the first rectangular block (30). The second rectangular block (32) is provided with a vertical through hole (320) and a first locking pin (321). The lower end of the micrometer (4) passes through the vertical through hole (320). One end of the first locking pin (321) passes through the side wall of the second rectangular block (32) and contacts the micrometer (4). The first locking pin (321) is threadedly connected to the second rectangular block (32).

4. The flange inspection fixture according to claim 3, characterized in that: The sleeve (31) includes an outer sleeve (310), an inner sleeve (311), and a second locking pin (312). The inner sleeve (311) is sleeved inside the outer sleeve (310). The second locking pin (312) passes through the outer sleeve (310) and contacts the inner sleeve (311). The top surface of the inner sleeve (311) is provided with marking scale (3110).

5. A flange inspection fixture according to claim 3, characterized in that: The base (1) is provided with an annular auxiliary groove (12), and the annular auxiliary groove (12) is provided with an auxiliary component (5) that matches it. The auxiliary component (5) includes an extension plate (50), an auxiliary cylinder (51) and a threaded cap (52). The extension plate (50) is fixedly connected to the end of the sleeve plate (31) away from the second rectangular block (32). The lower end of the auxiliary cylinder (51) is located in the annular auxiliary groove (12), and its upper end passes through the extension plate (50) and is threadedly connected to the threaded cap (52).

6. The flange inspection fixture according to claim 1, characterized in that: The bottom surface of the positioning block (22) is on the same horizontal plane as the bottom surface of the base (1).

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