Flange precision detection device

Abstract

The utility model provides a flange precision detection device, and relates to the technical field of flange detection, the flange precision detection device comprises a detection table, the middle part of the upper end of the detection table is provided with a storage disc, the middle part of the inner side of the storage disc is provided with a positioning and clamping assembly, the positioning and clamping assembly comprises three groups of arc-shaped clamping plates, and the three groups of arc-shaped clamping plates are combined to form a circular ring structure. First telescopic rods are arranged on the backs of the three groups of clamping plates; a detection assembly is arranged in the middle of the upper end of the detection table and located in the middle of the upper end of the storage disc, and the detection assembly comprises an inner hole range finder and an outer circle range finder. According to the utility model, through the arrangement of the inner hole range finder and the outer circle range finder, in the detection process, the inner hole range finder and the outer circle range finder are driven to rotate synchronously, so that the precision and the diameter of the inner hole and the outer circle of the flange plate are detected synchronously, and the efficiency and the precision of the detection work are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of flange inspection technology, specifically a flange accuracy inspection device. Background Technology

[0002] A flange, or simply flange, is a disc-shaped metal object with holes around its perimeter for fixing. It is used to connect other objects, primarily pipes, fittings, or equipment, enabling a sealed and detachable connection for easy installation, maintenance, and component replacement. In piping systems, flanges are used in pairs, connecting two pipe ends together with bolts and gaskets. On equipment such as pumps, valves, and speed reducers, their inlets and outlets are often flanged for connection to pipelines.

[0003] After the flange is manufactured, the accuracy and diameter of its inner hole and outer circle need to be inspected. The traditional inspection method is to inspect the inner hole and outer circle of the flange one by one, which is relatively inefficient.

[0004] To address the aforementioned issues, we propose a flange accuracy testing device. Utility Model Content

[0005] To address the problems in the background art, this utility model provides a flange accuracy testing device.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A flange accuracy testing device includes a testing platform. A storage tray is located at the upper center of the testing platform. A positioning clamping assembly is located at the inner center of the storage tray. The positioning clamping assembly includes three sets of arc-shaped clamping plates, which form a ring structure when joined together. A first telescopic rod is provided on the back of each of the three sets of clamping plates. A testing component is located at the upper center of the testing platform, situated at the upper center of the storage tray. The testing component includes an internal hole rangefinder and an external circle rangefinder, as well as a drive assembly for driving the internal hole rangefinder and external circle rangefinder to perform lifting and rotating movements. The drive assembly includes a second telescopic rod, the end of which is equipped with a motor for driving the internal hole rangefinder and external circle rangefinder to perform rotating movements.

[0008] Preferably, a support frame is fixedly installed on the upper left side of the testing platform, the second telescopic rod is fixedly installed on the top of the support frame, the motor is fixedly installed at the bottom of the output end of the second telescopic rod, a rotating seat is provided at the output end of the motor, a probe is provided at the bottom center of the rotating seat, and the internal hole rangefinder is installed on the bottom side of the probe.

[0009] Preferably, a sliding groove is vertically installed on the right end of the rotating seat, and a third telescopic rod is provided at the middle of the bottom end of the sliding groove, with the external circle distance measuring instrument located at the end of the third telescopic rod.

[0010] Preferably, a connecting seat is provided at the top of the third telescopic rod, and a fixing bolt is provided in the middle of the inner side of the slide groove. The fixing bolt passes through the slide groove and is threadedly connected to the connecting seat.

[0011] Preferably, the three sets of the first telescopic rods are installed in an equilateral triangle shape in the inner cavity of the storage tray.

[0012] Preferably, the bottom of the tray is provided with a support base, which is fixedly installed at the upper middle part of the testing table.

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

[0014] In this solution, the flange to be inspected can be positioned and clamped by the positioning and clamping assembly. Then, the second telescopic rod is pushed to insert the inner hole rangefinder into the inner hole of the flange and move the outer circle rangefinder to the outside of the flange. Then, the rotating seat is driven by the motor to rotate, thereby causing the inner hole rangefinder and the outer circle rangefinder to rotate synchronously. This enables the simultaneous detection of the accuracy and diameter of the inner hole and outer circle of the flange, thus effectively improving the efficiency of the inspection work. Furthermore, the positioning and clamping assembly can effectively improve the accuracy of the inspection work.

[0015] In addition, the design of the slide groove allows for horizontal sliding adjustment of the position of the external circular distance measuring instrument, thus making this invention applicable to the inspection of flanges of various diameters and improving its versatility. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the positioning clamping component and the detection component in this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the detection component in this utility model;

[0019] Figure 4 This is a schematic diagram of the flange in the detection mode of this utility model.

[0020] In the diagram: 1. Testing platform; 2. Storage tray; 3. Support base; 4. Clamping plate; 5. First telescopic rod; 6. Second telescopic rod; 7. Motor; 8. Rotating seat; 9. Probe; 10. Internal hole rangefinder; 11. Slide groove; 12. Fixing bolt; 13. Third telescopic rod; 14. Connecting seat; 15. External circle rangefinder; 16. Support frame. Detailed Implementation

[0021] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0022] Example: Refer to Figure 1 - Figure 4 As shown, a flange accuracy testing device of this embodiment includes a testing platform 1, a storage tray 2 is provided at the upper center of the testing platform 1, and a positioning clamping assembly is provided at the inner center of the storage tray 2. The positioning clamping assembly includes three sets of arc-shaped clamping plates 4, which form a ring structure when combined. A first telescopic rod 5 is provided on the back of each of the three sets of clamping plates 4. A testing component is provided at the upper center of the testing platform 1, and the testing component is located at the upper center of the storage tray 2. The testing component includes an internal hole rangefinder 10 and an external circle rangefinder 15, as well as a driving component for driving the internal hole rangefinder 10 and the external circle rangefinder 15 to perform lifting and rotating movements. The driving component includes a second telescopic rod 6, and a motor 7 is provided at the end of the second telescopic rod 6. The motor 7 is used to drive the internal hole rangefinder 10 and the external circle rangefinder 15 to perform rotating movements.

[0023] A support frame 16 is fixedly installed on the upper left side of the testing table 1. The second telescopic rod 6 is fixedly installed on the top of the support frame 16. The motor 7 is fixedly installed at the bottom of the output end of the second telescopic rod 6. A rotating seat 8 is provided at the output end of the motor 7. A probe 9 is provided at the bottom center of the rotating seat 8. An internal bore measuring instrument 10 is installed on the bottom side of the probe 9. When pushed down by the second telescopic rod 6, the probe 9 will extend into the inner hole of the flange, thereby driving the internal bore measuring instrument 10 to extend into the inner hole of the flange. Then, the motor 7 drives the rotating seat 8 to rotate, thereby causing the probe 9 to drive the internal bore measuring instrument 10 to rotate 360 ​​degrees, so that the internal bore measuring instrument 10 can perform the detection work on the circular accuracy and diameter of the inner hole of the flange.

[0024] A slide groove 11 is vertically installed on the right end of the rotating base 8. A third telescopic rod 13 is provided at the middle of the bottom end of the slide groove 11. The external circular distance measuring instrument 15 is located at the end of the third telescopic rod 13. A connecting seat 14 is provided at the top of the third telescopic rod 13. A fixing bolt 12 is provided in the middle of the inner side of the slide groove 11. The fixing bolt 12 passes through the slide groove 11 and is threadedly connected to the connecting seat 14. By loosening the fixing bolt 12, the third telescopic rod 13 can be slid horizontally, thereby moving and adjusting the position of the external circular distance measuring instrument 15. Conversely, by tightening the fixing bolt 12, the position of the third telescopic rod 13 can be limited and fixed, thereby locking the position of the external circular distance measuring instrument 15.

[0025] In some examples, three sets of first telescopic rods 5 are installed in the inner cavity of the storage tray 2 in an equilateral triangle. By pushing the three sets of first telescopic rods 5, the three sets of clamping plates 4 converge synchronously towards the center to form a circle, thereby positioning and clamping the flange placed in the center position and keeping the flange in the center position.

[0026] In some examples, a support base 3 is provided at the bottom of the tray 2. The support base 3 is fixedly installed at the upper middle part of the testing table 1. The support base 3 is mainly used to provide stable support and fixation for the tray 2.

[0027] The working principle of this utility model is as follows:

[0028] When it is necessary to test the accuracy of the flange, the staff first places the flange to be tested into the storage tray 2, and then activates the positioning clamping assembly. After the positioning clamping assembly is activated, the three sets of first telescopic rods 5 will be activated to push the clamping plate 4, so that the three sets of clamping plates 4 slide towards the center, thereby clamping and positioning the flange placed in the center position, so that the flange is fixedly placed in the center position of the storage tray 2.

[0029] Then, the staff needs to adjust the position of the outer circle distance measuring instrument 15 according to the diameter of the flange. During the adjustment, it is only necessary to loosen the fixing bolt 12 to adjust the horizontal displacement of the position of the outer circle distance measuring instrument 15. The staff needs to move the outer circle distance measuring instrument 15 to the outside of the flange.

[0030] Then, activate the second telescopic rod 6, pushing it downwards to insert the probe 9 into the inner hole of the flange. This lowers the inner hole rangefinder 10 into the inner hole of the flange, while the outer diameter rangefinder 15 remains on the outside of the flange. Next, activate the third telescopic rod 13, pushing it downwards to lower the outer diameter rangefinder 15 to a position almost level with the center point of the flange. When adjusting the height of the outer diameter rangefinder 15, it needs to be higher than the clamping plate 4 so that the sensor of the outer diameter rangefinder 15 can directly illuminate the outer wall of the flange, allowing direct detection of the straight-line distance between the sensor and the outer wall of the flange. (See attached diagram for specific details.) Figure 4 As shown.

[0031] After the heights of the internal bore rangefinder 10 and the external circle rangefinder 15 are adjusted, the motor 7 is started. The motor 7 drives the rotating seat 8 to rotate the slide 11. At this time, the internal bore rangefinder 10, located in the inner bore of the flange, can perform 360-degree rotation detection on the inner bore of the flange, while the external circle rangefinder 15 performs 360-degree rotation detection on the outer ring of the flange.

[0032] During the inspection process, the internal bore distance measuring instrument 10 can detect the distance between itself and the inner wall of the flange in real time. Since the internal bore distance measuring instrument 10 is located at the center of the flange's inner bore, the circumferential distance between the internal bore distance measuring instrument 10 and the inner wall of the flange's inner bore should be the same value. If there is fluctuation or difference, it means that the inner bore of the flange is not round enough. Furthermore, by calculating the distance between the center point of the internal bore distance measuring instrument 10 and the probe 9, as well as the distance between the internal bore distance measuring instrument 10 and the inner wall of the flange's inner bore, the diameter of the flange's inner bore can also be accurately calculated.

[0033] Similarly, the outer circle distance measuring instrument 15 can be used to detect whether the outer circle of the flange is round enough, as well as the diameter of the outer circle of the flange. The diameter is calculated by measuring the distance between the center point of the outer circle distance measuring instrument 15 and the probe 9, and then subtracting the distance between the outer circle distance measuring instrument 15 and the outer wall of the flange.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flange accuracy testing device, characterized in that, The device includes a testing platform (1), a storage tray (2) is provided at the upper middle part of the testing platform (1), a positioning clamping assembly is provided at the inner middle part of the storage tray (2), the positioning clamping assembly includes three sets of arc-shaped clamping plates (4), the three sets of arc-shaped clamping plates (4) form a ring structure when they are combined, and a first telescopic rod (5) is provided on the back of each of the three sets of clamping plates (4). A detection component is provided at the upper middle part of the detection platform (1). The detection component is located at the upper middle part of the tray (2). The detection component includes an internal hole rangefinder (10) and an external circle rangefinder (15), as well as a drive component for driving the internal hole rangefinder (10) and the external circle rangefinder (15) to perform lifting and rotating movements. The drive component includes a second telescopic rod (6). A motor (7) is provided at the end of the second telescopic rod (6). The motor (7) is used to drive the internal hole rangefinder (10) and the external circle rangefinder (15) to perform rotating movements.

2. The flange accuracy testing device according to claim 1, characterized in that, A support frame (16) is fixedly installed on the upper left side of the testing platform (1). The second telescopic rod (6) is fixedly installed on the top of the support frame (16). The motor (7) is fixedly installed at the bottom of the output end of the second telescopic rod (6). A rotating seat (8) is provided at the output end of the motor (7). A probe (9) is provided at the bottom center of the rotating seat (8). The internal hole rangefinder (10) is installed on the bottom side of the probe (9).

3. The flange accuracy testing device according to claim 2, characterized in that, The right end of the rotating seat (8) is vertically mounted with a slide groove (11), and a third telescopic rod (13) is provided at the bottom center of the slide groove (11). The outer circle distance measuring instrument (15) is located at the end of the third telescopic rod (13).

4. The flange accuracy testing device according to claim 3, characterized in that, The top of the third telescopic rod (13) is provided with a connecting seat (14), and the inner middle of the slide groove (11) is provided with a fixing bolt (12). The fixing bolt (12) passes through the slide groove (11) and is threadedly connected to the connecting seat (14).

5. The flange accuracy testing device according to claim 1, characterized in that, The three sets of the first telescopic rods (5) are installed in the inner cavity of the storage tray (2) in an equilateral triangle.

6. The flange accuracy testing device according to claim 1, characterized in that, The bottom of the tray (2) is provided with a support base (3), which is fixedly installed in the middle of the upper end of the testing table (1).

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