A high-precision inner and outer diameter detection device

Abstract

The utility model provides a kind of high-precision inside and outside diameter detection device, for installing flange, comprising: support, is equipped with the detection table for installing flange;Detection unit, detection unit includes drive assembly and several detection rods, detection table is equipped with several sliding slots, several detection rods are respectively slidingly arranged in several sliding slots, and drive assembly is connected with each detection rod, for adjusting the spacing between each detection rod, so that each detection rod is abutted on the circumferential side of flange. By the drive assembly in detection unit several detection rods are adjusted to specified position, so that the size of arc formed between several detection rods meets the size of flange to be detected, when detecting flange, directly place flange on detection table and between several detection rods, the fast synchronous measurement of flange inside and outside diameter can be realized, compared with traditional artificial point-by-point measurement mode, the detection time of single flange is greatly shortened, suitable for warehouse-out detection in mass production.

Description

Technical Field

[0001] This utility model relates to the field of flange inspection technology, and in particular to a high-precision inner and outer diameter inspection device. Background Technology

[0002] As a connection node for various pipelines in the engine (fuel pipe, coolant pipe, exhaust pipe, intake pipe, etc.), the pipe flange integrates different components (such as turbocharger, radiator, oil pump, cylinder head, etc.) into a whole system, ensuring reliable fluid transmission and meeting the stability requirements of the engine under harsh operating conditions such as high temperature, high pressure, and vibration.

[0003] As a fixed support point for pipelines, pipe flanges need to be precisely aligned with adjacent components. After production, their inner and outer diameters often need to be inspected to prevent uneven stress caused by deviations, which could lead to vibration or fatigue fracture. Currently, the inner and outer diameters of flanges are mostly measured manually with handheld calipers. In batch inspection of flanges, this method is not only inaccurate but also time-consuming and labor-intensive, reducing the efficiency of flange inspection and release. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high-precision inner and outer diameter detection device, which solves the problems of low accuracy and low efficiency in flange detection in existing technologies.

[0005] According to the embodiments of this utility model, the following technical solution is adopted:

[0006] A high-precision internal and external diameter measuring device for flange installation includes:

[0007] The support component is equipped with a testing platform for mounting flanges;

[0008] The detection unit includes a drive assembly and several detection rods. The detection table has several sliding grooves, and the detection rods are slidably disposed in the several sliding grooves. The drive assembly is connected to each detection rod to adjust the spacing between the detection rods so that each detection rod abuts against the periphery of the flange.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] In this solution, the driving component in the detection unit adjusts several detection rods to designated positions, ensuring that the arc formed between the detection rods matches the dimensions of the flange to be inspected. During flange inspection, the flange is placed directly on the inspection table between the detection rods, enabling rapid and synchronous measurement of the flange's inner and outer diameters. Simultaneously, the flange can be rotated, allowing it to move between the detection rods, enabling multi-point simultaneous contact measurement. This provides a more comprehensive reflection of the flange's true inner and outer diameter dimensions and roundness. Compared to traditional manual point-by-point measurement, this significantly reduces the inspection time for a single flange, making it suitable for outbound inspection in mass production.

[0011] Preferably, the driving component includes:

[0012] A rotating block is rotatably mounted on the bottom surface of the testing platform and is coaxially arranged with the testing platform.

[0013] Several sliders are slidably disposed in several grooves and connected to corresponding detection rods;

[0014] Several driving rods, one end of each driving rod rotatably mounted on several sliders, and the other end of each driving rod rotatably mounted on a rotating block; and

[0015] Locking element, used to lock the position of the rotating block.

[0016] Preferably, the locking element includes:

[0017] The worm gear is fixedly mounted at the bottom of the rotating block and is coaxially mounted with the rotating block;

[0018] The adjusting rod and the support are provided with two mounting seats. The adjusting rod passes through the two mounting seats and is equipped with a worm gear that meshes with a worm wheel.

[0019] Preferably, one of the mounting bases is threadedly connected to a pressing screw, the end of which abuts against an adjusting rod.

[0020] Preferably, the detection rod is rotatably mounted on the slider.

[0021] Preferably, the top of the detection rod is provided with a guide slope.

[0022] Preferably, the testing table is provided with a scale bar, which is set along the length of one of the slide grooves.

[0023] Preferably, the bottom of the support member is provided with a counterweight base. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0025] Figure 2 This is a top view of an embodiment of the present invention.

[0026] Figure 3 This is a bottom view of the structure of an embodiment of the present invention.

[0027] In the above figures: 1. Flange; 2. Support; 201. Mounting base; 3. Testing table; 301. Slide groove; 302. Scale bar; 4. Sliding block; 401. Testing rod; 402. Guide slope; 5. Rotating block; 501. Drive rod; 502. Worm gear; 6. Adjusting rod; 601. Worm; 7. Extrusion screw; 8. Counterweight base. Detailed Implementation

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0029] This utility model embodiment proposes a high-precision inner and outer diameter detection device for mounting flange 1, comprising:

[0030] Support component 2 is equipped with a testing platform 3 for mounting flange 1;

[0031] The detection unit includes a drive assembly and several detection rods 401. The detection table 3 has several sliding grooves 301. The detection rods 401 are slidably disposed in the several sliding grooves 301. The drive assembly is connected to each detection rod 401 to adjust the distance between each detection rod 401 so that each detection rod 401 abuts against the periphery of the flange 1.

[0032] In the embodiments of this utility model, such as Figure 1 As shown, the support member 2 preferably adopts a cylindrical structure, so that the inspection table 3 set on the top of the support member 2 can adapt to the inspection and installation of flanges 1 of different diameters. Before inspecting the flange 1, the drive component in the inspection unit first adjusts several inspection rods 401 to the specified position so that the size of the arc formed between the inspection rods 401 meets the size of the flange 1 to be inspected. Then, the flange 1 is placed directly on the inspection table 3 so that the flange 1 is located between the inspection rods 401, which can realize the rapid synchronous measurement of the inner and outer diameters of the flange 1. If the flange 1 cannot enter between the inspection rods 401, it means that the outer diameter of the flange 1 is too large. If there is radial wobble when the flange 1 enters between the inspection rods 401, it means that the outer diameter of the flange 1 is too small. The amplitude of the wobble depends on the accuracy of the quality tolerance. When inspecting the inner diameter of the flange 1, such as the inner diameter of the sealing groove or the inner diameter of the shaft hole, the flange 1 is placed on the inspection table 3 in the same way, so that the inspection rods 401 are located on the inner side of the flange 1. Moreover, the flange 1 can be rotated so that it can rotate between each detection rod 401, allowing for simultaneous contact measurement at multiple points. This provides a more comprehensive reflection of the true dimensions and roundness of the inner and outer diameters of the flange 1. Compared to the traditional manual point-by-point measurement method, this significantly shortens the inspection time for a single flange 1, making it suitable for outbound inspection in mass production.

[0033] Based on the above scheme, each detection rod 401 synchronously forms an arc of a certain diameter. Therefore, the flange 1 needs to be coaxial with the detection table 3 during testing, and the arc formed by each detection rod 401 also needs to be coaxial with the detection table 3. To facilitate the synchronous adjustment of each detection rod 401, such as... Figure 2 and Figure 3 As shown, the driving component includes:

[0034] Rotating block 5 is rotatably mounted on the bottom surface of the testing table 3 and is coaxially arranged with the testing table 3;

[0035] A plurality of sliders 4 are slidably disposed in a plurality of sliding grooves 301 and connected to the corresponding detection rods 401;

[0036] A plurality of drive rods 501, one end of each drive rod 501 being rotatably mounted on a plurality of sliders 4, and the other end of each being rotatably mounted on a rotating block 5; and

[0037] A locking element is used to lock the position of the rotating block 5.

[0038] Specifically, the slide groove 301 is radially opened along the detection table 3 and limits the slider 4, so that the slider 4 can only slide along the length direction of the slide groove 301. The detection table 3 is provided with a scale bar 302, which is set along the length direction of one of the slide grooves 301. When adjusting each detection rod 401 by the drive assembly, the rotating block 5 is adjusted to rotate at the bottom of the detection table 3. This causes the rotating block 5 to drive the ends of each drive rod 501 to change their radial positions. As a result, the slider 4 is pulled or pushed by the other end of the drive rod 501 to change the position of the detection rod 401, thereby achieving synchronous adjustment of each detection rod 401. The two ends of the slider 4 are exactly tangents to the detection rod 401. When detecting the inner and outer diameters of the flange 1, the two ends of the slider 4 are aligned with the scale bar 302 respectively. After the adjustment is completed, the rotating block 5 is locked by a locking device to prevent it from rotating. The locking device can be a bolt.

[0039] To simplify the adjustment and locking steps, such as Figure 3 As shown, the locking element includes:

[0040] The worm gear 502 is fixedly mounted on the bottom of the rotating block 5 and is coaxially mounted with the rotating block 5;

[0041] The adjusting rod 6 and the support member 2 are respectively provided with two mounting seats 201. The adjusting rod 6 passes through the two mounting seats 201. The adjusting rod 6 is provided with a worm 601, which meshes with the worm wheel 502.

[0042] The adjustment and locking of the rotating block 5 can be completed by operating the adjusting rod 6. When adjusting the rotating block 5, the adjusting rod 6 rotates between the two mounting seats 201, which drives the worm gear 601 connected to it to rotate. The worm gear 601 drives the worm wheel 502 to rotate, thereby realizing the adjustment of the rotating block 5. When the adjustment of the adjusting rod 6 is stopped, it can be locked under the self-locking of the worm wheel 502 and the worm gear 601 to maintain the position between the detection rods 401.

[0043] During normal testing operations, to avoid accidental activation of the adjusting lever 6, such as... Figure 1 As shown, one of the mounting bases 201 is threadedly connected to a pressing screw 7. The end of the pressing screw 7 abuts against the adjusting rod 6. After the position of each detection rod 401 is adjusted, the pressing screw 7 is turned so that the end of the pressing screw 7 abuts against the adjusting rod 6, so that the adjusting rod 6 cannot rotate under the action of pressing friction, which facilitates the batch inspection of the flange 1.

[0044] Secondly, the detection rod 401 is rotatably mounted on the slider 4. When performing rotational testing on the flange 1, the detection rod 401 can roll around the circumference of the flange 1, avoiding unnecessary wear on the circumference of the flange 1 and facilitating multi-point testing of the flange 1. Furthermore, to facilitate the installation of the flange 1, a guide slope 402 is provided at the top of the detection rod 401. This allows the flange 1 to be guided when its outer or inner surface does not correspond to the circumference of the detection rod 401, thus facilitating installation and testing of the flange 1.

[0045] Specifically, such as Figure 1 As shown, the bottom of the support 2 is provided with a counterweight base 8. The mass of the counterweight base 8 is greater than the sum of the other components, which ensures the stability of the entire device. Specifically, anti-slip textures can be made on the bottom surface of the counterweight base 8 to increase the friction between the counterweight base 8 and the table surface.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-precision inner and outer diameter detection device for mounting flanges (1), characterized in that, include: The support member (2) is provided with a testing platform (3) for installing the flange (1); The detection unit includes a drive assembly and several detection rods (401). The detection table (3) has several sliding grooves (301). Several detection rods (401) are slidably disposed in several sliding grooves (301). The drive assembly is connected to each detection rod (401) to adjust the distance between each detection rod (401) so that each detection rod (401) abuts against the periphery of the flange (1).

2. The high-precision inner and outer diameter detection device according to claim 1, characterized in that, The driving component includes: Rotating block (5), the rotating block (5) is rotatably disposed on the bottom surface of the detection table (3) and is coaxially disposed with the detection table (3); A plurality of sliders (4) are slidably disposed in a plurality of grooves (301) and connected to the corresponding detection rods (401); A plurality of drive rods (501), one end of each drive rod (501) being rotatably mounted on a plurality of sliders (4), and the other end of each being rotatably mounted on a rotating block (5); and A locking element is used to lock the position of the rotating block (5).

3. The high-precision inner and outer diameter detection device according to claim 2, characterized in that, The locking element includes: The worm gear (502) is fixedly disposed at the bottom of the rotating block (5) and is coaxially disposed with the rotating block (5); The adjusting rod (6) is provided with two mounting seats (201) corresponding to the support member (2). The adjusting rod (6) passes through the two mounting seats (201). The adjusting rod (6) is provided with a worm (601), which meshes with the worm wheel (502).

4. The high-precision inner and outer diameter detection device according to claim 3, characterized in that, One of the mounting bases (201) is threadedly connected to a pressing screw (7), the end of which abuts against the adjusting rod (6).

5. A high-precision inner and outer diameter detection device according to any one of claims 2-4, characterized in that, The detection rod (401) is rotatably mounted on the slider (4).

6. The high-precision inner and outer diameter detection device according to claim 5, characterized in that, The top end of the detection rod (401) is provided with a guide slope (402).

7. The high-precision inner and outer diameter detection device according to claim 1, characterized in that, The testing platform (3) is provided with a scale bar (302), which is arranged along the length direction of one of the slide grooves (301).

8. The high-precision inner and outer diameter detection device according to claim 1, characterized in that, The bottom end of the support member (2) is provided with a counterweight base (8).

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