Flange dimension measuring fixture

By designing an infrared measuring device and a clamp adjustment structure for flange dimension measurement, the problem that existing clamps cannot fully measure the flange surface has been solved, achieving efficient and accurate flange measurement, adapting to flanges of different specifications, and improving the stability and flexibility of measurement.

CN224302990UActive Publication Date: 2026-05-29SHENZHEN ZHONGKEYI PRECISION IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZHONGKEYI PRECISION IND CO LTD
Filing Date
2025-08-19
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing flange size measuring fixtures cannot fully measure the flange surface, resulting in inaccurate measurement of irregularly shaped flanges and affecting the measurement structure.

Method used

A flange dimension measuring fixture was designed, which uses an infrared measuring device combined with clamping blocks and an adjustment structure. By moving the clamping blocks and cooperating with the infrared measuring device, a comprehensive measurement of the flange can be achieved. The pressure plate driven by the drive motor is used to stably press the flange to ensure measurement accuracy.

Benefits of technology

It improves the efficiency and accuracy of flange size measurement, can adapt to flanges of different specifications and sizes, reduces measurement errors, has a simple structure, is easy to operate, and extends the service life of the fixture.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224302990U_ABST
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Abstract

The utility model discloses a flange size measurement clamp relates to flange measurement technical field. The utility model discloses a base, the upper end fixed mounting of base has chuck, both sides of chuck surface all are seted up with moving groove, the inside activity of moving groove is inserted with clamping block, the upper end fixed mounting of clamping block has infrared measuring ware, the outside of clamping block is equipped with the clamping sleeve, the lower extreme of clamping block is provided with adjusting structure, be provided with connecting structure between clamping sleeve and clamping block, the user places flange on chuck, and the drive is driven adjusting screw rotation, and moving plate is under the action of screw hole along adjusting screw surface and moves up and down, and then through the movable connecting rod and promotes the sliding of moving sleeve on the guide rod, makes clamping block move in moving groove, realizes the clamping of flange, and the size of flange is measured to infrared measuring ware, simple structure, convenient operation has improved the efficiency and precision of flange size measurement.
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Description

Technical Field

[0001] This utility model relates to a ruler measuring fixture, and more particularly to a flange size measuring fixture, belonging to the field of flange measurement technology. Background Technology

[0002] Flanges are commonly used connecting components in mechanical engineering, mainly used for connecting and sealing pipes, valves, equipment, etc. They are used to fix two sections of pipes or equipment together with bolts and gaskets (such as rubber or metal gaskets) to prevent fluid leakage. Compared with welding, flange connections are easier to maintain and replace.

[0003] Existing flange size measuring fixtures use two clamping blocks to hold the flange and measure its dimensions. While these fixtures can meet certain usage requirements to some extent, they still have some shortcomings in actual use. For example, existing measuring fixtures can only perform simple measurements of flange dimensions and cannot perform comprehensive measurements of the flange surface. They are also prone to failing to measure flanges with irregular shapes, resulting in some flanges being unqualified and affecting the measurement structure.

[0004] Therefore, it is urgent to improve the existing flange size measuring fixture to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a flange size measuring fixture that can solve the problem that existing measuring fixtures can only perform simple measurements of flange dimensions and cannot perform comprehensive measurements of the flange surface. Furthermore, irregular flange shapes can easily lead to the inability to measure flanges, resulting in some flanges being unqualified and affecting the measurement structure.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a flange size measuring fixture, comprising a base, a clamping plate fixedly installed on the upper end of the base, movable grooves provided on both sides of the surface of the clamping plate, a clamping block movably inserted inside the movable groove, an infrared measuring device fixedly installed on the upper end of the clamping block, a clamping sleeve sleeved on the outer side of the clamping block, an adjustment structure provided at the lower end of the clamping block, and a connecting structure provided between the clamping sleeve and the clamping block.

[0007] The present invention is further provided that pads are fixedly installed on both sides of the lower end of the base, and ventilation holes are provided at the lower end of the base.

[0008] The present invention is further configured such that the adjustment structure includes a guide rod, which is fixedly installed on both sides inside the clamping plate, and a movable sleeve is movably sleeved on the surface of the guide rod, and the movable sleeve is fixedly connected to the lower end of the clamping block.

[0009] The present invention is further configured such that a movable connecting rod is movably installed at the lower end of the movable sleeve, a driver is fixedly installed at the lower end inside the base, and an adjusting screw is installed at the output end of the driver.

[0010] The present invention is further configured such that a movable plate is sleeved on the surface of the adjusting screw, a threaded hole is opened in the middle of the movable plate, the threaded hole is threadedly connected to the adjusting screw, and the movable plate is movably connected to one end of the movable connecting rod.

[0011] The present invention is further configured such that a support frame is fixedly installed on the upper end of the base, a telescopic rod is fixedly installed on the upper end of the support frame, a box is fixedly installed on the lower end of the telescopic rod, a drive motor is installed inside the box, and a pressure plate is installed on the output end of the drive motor.

[0012] The present invention is further configured such that the connecting structure includes a fixing ring, the fixing ring is fixedly installed on the surface of the clamping block, the lower end of the clamping sleeve is in contact with the fixing ring, and a limiting ring is sleeved on the surface of the clamping block, the limiting ring being in contact with the upper end of the clamping sleeve.

[0013] The present invention is further configured such that an installation screw sleeve is rotatably mounted on the surface of the limiting ring, the installation screw sleeve is threadedly connected to the clamping block, and sliding grooves are provided on both sides of the surface of the clamping block. A slider is provided on the inner wall of the limiting ring, and the slider cooperates with the sliding groove.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. In this utility model, the user places the flange on the clamping plate, the driver drives the adjusting screw to rotate, and the moving plate moves up and down along the surface of the adjusting screw under the action of the threaded hole. Then, through the movable connecting rod, the moving sleeve slides on the guide rod, so that the clamping block moves in the moving groove to clamp the flange. At the same time, the infrared measuring device measures the size of the flange. The structure is simple, the operation is convenient, and the efficiency and accuracy of flange size measurement are improved.

[0016] 2. In this utility model, during testing, the box serves as a protective device for the drive motor, effectively preventing dust and debris from entering the motor and ensuring its normal operation and long-term use. The entire design is compact and highly functional, further improving the efficiency and accuracy of flange size measurement. The drive motor can rotate the flange through the pressure plate, facilitating comprehensive measurement of the flange. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional structural diagram of the device of this utility model;

[0019] Figure 2 This is a schematic diagram of the bottom structure of the device of this utility model;

[0020] Figure 3 This is a schematic diagram of a half-section of the device of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] In the diagram, 100 is the base; 110 is the pad; 111 is the ventilation hole; 200 is the clamping plate; 201 is the moving groove; 210 is the guide rod; 211 is the moving sleeve; 212 is the movable connecting rod; 213 is the moving plate; 214 is the driver; 215 is the adjusting screw; 300 is the support frame; 310 is the telescopic rod; 311 is the box; 312 is the pressure plate; 313 is the drive motor; 400 is the clamping block; 401 is the slide groove; 402 is the fixing ring; 410 is the clamping sleeve; 420 is the limit ring; 421 is the mounting screw sleeve; 422 is the slider; and 430 is the infrared measuring device. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] like Figures 1 to 3 As shown, this embodiment provides a flange size measuring fixture, including a base 100. A clamping plate 200 is fixedly installed on the upper end of the base 100. Movable grooves 201 are provided on both sides of the surface of the clamping plate 200. A clamping block 400 is movably inserted inside the movable groove 201. An infrared measuring device 430 is fixedly installed on the upper end of the clamping block 400. A clamping sleeve 410 is fitted on the outer side of the clamping block 400. An adjustment structure is provided at the lower end of the clamping block 400. The adjustment structure includes guide rods 210, which are fixedly installed on both sides inside the clamping plate 200. A movable sleeve 211 is movably fitted onto the surface of the rod 210. The movable sleeve 211 is fixedly connected to the lower end of the clamping block 400. A movable connecting rod 212 is movably installed at the lower end of the movable sleeve 211. A driver 214 is fixedly installed at the lower end inside the base 100. An adjusting screw 215 is installed at the output end of the driver 214. A movable plate 213 is fitted onto the surface of the adjusting screw 215. A threaded hole is opened in the middle of the movable plate 213. The threaded hole is threadedly connected to the adjusting screw 215. The movable plate 213 is movably connected to one end of the movable connecting rod 212.

[0025] In this embodiment, the user places the flange on the clamp 200, the driver 214 drives the adjusting screw 215 to rotate, and the moving plate 213 moves up and down along the surface of the adjusting screw 215 under the action of the threaded hole. Then, through the movable connecting rod 212, the moving sleeve 211 is pushed to slide on the guide rod 210, so that the clamping block 400 moves in the moving groove 201 to clamp the flange. At the same time, the infrared measuring device 430 measures the size of the flange. The structure is simple and the operation is convenient, which improves the efficiency and accuracy of flange size measurement.

[0026] The base 100 has pads 110 fixedly installed on both sides of its lower end, and ventilation holes 111 are provided at the lower end of the base 100. The design of the pads 110 makes the entire fixture more stable during use, less prone to shaking, and ensures measurement accuracy. The ventilation holes 111 facilitate heat dissipation inside the fixture, extending its service life. In addition, the fixture has high applicability and can adapt to flanges of different specifications and sizes, greatly improving the flexibility and versatility of measurement. During use, the measurement task can be easily completed by simply adjusting the position of the clamp 400 according to the actual size of the flange, without the need to change the fixture, saving time and costs.

[0027] like Figures 1 to 3 As shown, this embodiment provides a flange size measuring fixture, in which a support frame 300 is fixedly installed on the upper end of the base 100, a telescopic rod 310 is fixedly installed on the upper end inside the support frame 300, a box 311 is fixedly installed on the lower end of the telescopic rod 310, a drive motor 313 is installed inside the box 311, and a pressure plate 312 is installed on the output end of the drive motor 313.

[0028] In this embodiment, the design of the telescopic rod 310 allows the box 311 and its internal drive motor 313 to be finely adjusted in the vertical direction to accommodate flanges of different heights. This ensures that the pressure plate 312 can accurately press the flange, improving the stability and accuracy of the measurement. The drive motor 313 serves as the power source for the entire fixture, applying stable pressure to the flange through the pressure plate 312 at its output end, keeping the flange fixed during measurement and avoiding measurement errors caused by flange movement. The box 311 acts as a protective device for the drive motor 313, effectively preventing dust and debris from entering the motor and ensuring its normal operation and long-term use. The entire design is compact and highly functional, further improving the efficiency and accuracy of flange size measurement. The drive motor 313 can rotate the flange through the pressure plate 312, facilitating comprehensive flange measurement.

[0029] like Figures 1 to 3As shown, this embodiment provides a flange size measuring fixture, in which a connecting structure is provided between the clamp 410 and the clamp block 400. The connecting structure includes a fixing ring 402, which is fixedly installed on the surface of the clamp block 400. The lower end of the clamp 410 is in contact with the fixing ring 402. A limiting ring 420 is sleeved on the surface of the clamp block 400, which is in contact with the upper end of the clamp 410. An installation screw sleeve 421 is rotatably installed on the surface of the limiting ring 420, and the installation screw sleeve 421 is threadedly connected to the clamp block 400. Sliding grooves 401 are provided on both sides of the surface of the clamp block 400. A slider 422 is provided on the inner wall of the limiting ring 420, and the slider 422 cooperates with the sliding groove 401.

[0030] In this embodiment, this design makes the connection between the sleeve 410 and the clamping block 400 more stable. Through the dual action of the fixing ring 402 and the limiting ring 420, the stability and reliability of the sleeve 410 on the clamping block 400 are ensured. The sleeve 410 also facilitates the rotation of the flange. The threaded connection between the mounting sleeve 421 and the clamping block 400 further enhances the firmness of the connection, making the sleeve 410 less likely to loosen or fall off during use. At the same time, the cooperative design of the slider 422 and the slide groove 401 allows the limiting ring 420 to slide smoothly on the clamping block 400, which facilitates the installation and removal of the limiting ring 420 and the replacement of the sleeve 410.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A flange dimension measuring fixture, comprising a base (100), characterized in that: A clamping plate (200) is fixedly installed on the upper end of the base (100). Movable grooves (201) are provided on both sides of the surface of the clamping plate (200). A clamping block (400) is movably inserted inside the movable groove (201). An infrared measuring device (430) is fixedly installed on the upper end of the clamping block (400). A sleeve (410) is fitted on the outer side of the clamping block (400). An adjustment structure is provided at the lower end of the clamping block (400). A connection structure is provided between the sleeve (410) and the clamping block (400).

2. The flange dimension measuring fixture according to claim 1, characterized in that: Pads (110) are fixedly installed on both sides of the lower end of the base (100), and ventilation holes (111) are provided at the lower end of the base (100).

3. A flange dimension measuring fixture according to claim 1, characterized in that: The adjustment structure includes a guide rod (210), which is fixedly installed on both sides inside the clamping plate (200). A movable sleeve (211) is movably sleeved on the surface of the guide rod (210), and the movable sleeve (211) is fixedly connected to the lower end of the clamping block (400).

4. A flange dimension measuring fixture according to claim 3, characterized in that: The lower end of the movable sleeve (211) is movably mounted with a movable connecting rod (212), and the lower end of the base (100) is fixedly mounted with a driver (214), and the output end of the driver (214) is mounted with an adjusting screw (215).

5. A flange dimension measuring fixture according to claim 4, characterized in that: The surface of the adjusting screw (215) is fitted with a movable plate (213), and a threaded hole is provided in the middle of the movable plate (213). The threaded hole is threadedly connected to the adjusting screw (215), and the movable plate (213) is movably connected to one end of the movable connecting rod (212).

6. A flange dimension measuring fixture according to claim 1, characterized in that: A support frame (300) is fixedly installed on the upper end of the base (100). A telescopic rod (310) is fixedly installed on the upper end of the support frame (300). A box (311) is fixedly installed on the lower end of the telescopic rod (310). A drive motor (313) is installed inside the box (311). A pressure plate (312) is installed on the output end of the drive motor (313).

7. A flange dimension measuring fixture according to claim 1, characterized in that: The connection structure includes a fixing ring (402), which is fixedly installed on the surface of the clamping block (400). The lower end of the clamping sleeve (410) is in contact with the fixing ring (402). A limiting ring (420) is sleeved on the surface of the clamping block (400), and the limiting ring (420) is in contact with the upper end of the clamping sleeve (410).

8. A flange dimension measuring fixture according to claim 7, characterized in that: The surface of the limiting ring (420) is rotatably mounted with an installation screw sleeve (421), which is threadedly connected to the clamping block (400). Both sides of the surface of the clamping block (400) are provided with sliding grooves (401). The inner wall of the limiting ring (420) is provided with a slider (422), which cooperates with the sliding groove (401).