Rapid test tool for diaphragm flange pressure transmitter

Abstract

The utility model provides a rapid test tool for a diaphragm flange pressure transmitter, and aims to solve the problems of poor adaptability, insufficient sealing performance, inconvenient installation and disassembly and low test efficiency in the prior art. The tool comprises a supporting seat, a clamping jaw, an air cylinder and a testing flange, a plurality of O-shaped sealing rings are arranged on the testing flange to adapt to pressure transmitter flanges of different specifications, and a good sealing effect is ensured. The air cylinder pushes the testing flange to be in contact with the pressure transmitter flange, and the pressure transmitter is fixed through the clamping jaw. The clamping jaws adopt guide rail structures, the clamping range of the clamping jaws can be adjusted, and the clamping jaws are suitable for transmitter flanges of different models. In the testing process, the pressure transmitter is fixed with the clamping jaw barb through the thrust of the air cylinder, so that the sealing reliability is ensured. The tool has high adaptability, is suitable for testing pressure transmitters of various specifications, is convenient to mount and dismount, and effectively improves the testing efficiency and the sealing performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure transmitter detection, and particularly relates to a rapid test tooling for a diaphragm flange pressure transmitter. Background Art

[0002] Detection can verify whether the diaphragm flange pressure transmitter meets the design requirements and standards during the manufacturing process. This mainly detects pressure measurement accuracy, output signal stability, etc. The diaphragm flange pressure transmitter itself is relatively large in volume and is difficult to install during the detection process. Therefore, in order to improve the efficiency of the detection process and the stability of product quality, a rapid test tooling for a diaphragm flange pressure transmitter is designed.

[0003] Defects and deficiencies of the existing detection technology:

[0004] 1. Insufficient sealing performance: The sealing performance of the test tooling directly affects the accuracy of the test results. If the seal is not tight or there is air leakage at the flange connection, it may cause pressure leakage or measurement error;

[0005] 2. Poor adaptability: Some toolings may have insufficient adaptability to different types or sizes of flanges, making the tooling unable to achieve effective value;

[0006] 3. Difficult flange assembly operation: Due to the relatively large volume of the diaphragm flange pressure transmitter itself, it is difficult to achieve rapid assembly with the existing detection tooling. Content of the Utility Model

[0007] Aiming at the above deficiencies in the prior art, the purpose of the utility model is to provide a rapid test tooling for a diaphragm flange pressure transmitter that can measure different specifications, has strong adaptability, good sealing performance, and is convenient for installation and disassembly.

[0008] The technical solution of the utility model is as follows:

[0009] A rapid testing tooling for diaphragm flange pressure transmitters, comprising a support base, a number of clamping jaws vertically arranged above the support base, a cylinder fixedly arranged on the lower surface of the support base, and a test flange; a through hole is opened on the top plate of the support base, the push rod of the cylinder passes upward through the through hole and is fixedly connected to the center of the lower surface of the test flange, and the test flange is horizontally arranged; a number of the clamping jaws are symmetrically arranged around the test flange, barbs are arranged at the tops of the clamping jaws, and the barbs all face the axis of the test flange, the lower surfaces of the barbs of a number of the clamping jaws are in the same plane, and the test flange is arranged below a number of the barbs; a number of O-ring seals for sealing pressure transmitter flanges of different specifications are arranged on the upper surface of the test flange, and a number of the O-ring seals are concentric with the axis of the test flange; an air hole for air intake communicating with the inside of the pressure transmitter is opened in the middle of the test flange; the pressure transmitter flange is placed flat on the test flange and its liquid inlet hole is aligned with the air hole on the test flange, and a number of the barbs clamp the upper surface of the pressure transmitter flange.

[0010] By arranging a cylinder and clamping jaws on the support base, and arranging a test flange on the push rod of the cylinder, under the action of the test flange, a number of clamping jaws and their barbs, a space for accommodating the pressure transmitter is formed between the test flange and a number of clamping jaws, the pressure transmitter flange to be tested can be made to contact the test flange, and then the pressure transmitter is pushed upward by the action of the cylinder so that the pressure transmitter flange abuts against the barbs of the clamping jaws, thereby fixing the pressure transmitter. By arranging O-ring seals on the upper surface of the test flange, the test flange and the pressure transmitter flange can be sealed with each other. Finally, by introducing high-pressure gas into the pressure transmitter, the sealing performance of the pressure transmitter can be tested. By arranging a number of O-ring seals of different models, the testing tooling can be used for testing pressure transmitters of different models. Especially when it comes to pressure transmitters with larger specifications and models, a number of O-ring seals can achieve multiple layers of sealing, with better sealing, solving the problem of poor adaptability of the existing testing tooling. By placing the test flange flat, only by placing the pressure transmitter on the test flange can a relatively high sealing performance of the testing tooling be achieved, making the installation and disassembly of the pressure transmitter during testing more convenient.

[0011] Furthermore, a connecting block is fixedly arranged at the free end of the push rod of the cylinder, the other end of the connecting block is fixedly connected to the bottom of the test flange, an air passage communicating with the air hole on the test flange is arranged in the connecting block, the air inlet of the air passage is arranged on the side surface of the connecting block, and an inflation sealing joint is arranged at the air inlet, and the inflation sealing joint at the air inlet is connected to an industrial control press.

[0012] Through the setting of the connecting block, it is convenient to set up the ventilation pipeline. By setting up the inflatable sealing joint, it is convenient to connect with the industrial control press. The test tooling of the utility model further includes an upper computer test system, through which the industrial control press, the cylinder, the acquisition and calculation of data and other electric control devices can be jointly controlled.

[0013] Preferably, the cylinder is a multiple-acting cylinder.

[0014] Furthermore, a plurality of circular grooves concentric with the test flange are arranged on the upper surface of the test flange, O-ring seals of different specifications are respectively arranged in circular grooves of different sizes, and the tops of the plurality of O-ring seals are higher than the upper surface of the test flange.

[0015] By arranging circular grooves on the upper surface of the test flange, it is convenient to set up the O-ring seal. At the same time, the O-ring seal is higher than the upper surface of the test flange, which can achieve a better sealing effect.

[0016] Furthermore, a plurality of limiting scale lines are arranged on the upper surface of the test flange, and the scale lines are circular and concentric with the test flange.

[0017] By arranging a plurality of different scale lines, when measuring pressure transmitters of different models, it is convenient to position the flanges of pressure transmitters of different models, so as to achieve a better sealing effect and make the test more accurate.

[0018] Furthermore, a plurality of the clamping jaws are arranged in an axisymmetric manner or a mirror-symmetric manner.

[0019] By symmetrically arranging a plurality of clamping jaws, it is convenient for the flange of the pressure transmitter to be evenly stressed, thereby improving the sealing performance.

[0020] Preferably, the clamping jaws are movably arranged along the radial direction of the test flange above the support seat. Two guide rails are arranged in parallel on the support seat at the bottom of the clamping jaws. The bottoms of the clamping jaws are respectively connected with the clamping jaw fixing plates, and the bottoms of the clamping jaw fixing plates are connected with the guide blocks, and the guide blocks slide along the guide rails in the radial direction of the test flange.

[0021] By arranging guide rails and guide blocks under the clamping jaws, a plurality of clamping jaws can be contracted inward or expanded outward, which is more suitable for fixing flanges of pressure transmitters of different models and sizes.

[0022] Furthermore, a receiving groove corresponding to the clamping jaws is arranged on the periphery of the test flange.

[0023] By arranging a receiving groove on the test flange, the sliding distance of the clamping jaws can be increased, so that the types of the pressure transmitters to be measured can be increased.

[0024] Preferably, there are two clamping jaws, which are arranged in a mirror-symmetric manner.

[0025] Furthermore, two limit blocks are provided on the upper surface of the support base, a gap is provided between the two limit blocks, and the two claw jaws are arranged in this gap; the test flange is arranged above the two limit blocks; the guide rail is arranged between the gaps and has two notches on both sides of the gap, and the end parts of the two notches are respectively provided with limit plates fixed on the two limit blocks to prevent the claw jaws from slipping off.

[0026] By setting the claw jaws to two and through the setting of the limit blocks, the test flange can be more evenly stressed when on the limit blocks. At the same time, the setting of the two limit blocks facilitates the installation of the limit plates and prevents the claw jaws from slipping off when sliding along the guide rail.

[0027] Compared with the prior art, the utility model has the following technical effects:

[0028] 1. The O-ring is used for sealing between the diaphragms of the utility model's pressure transmitter quick test tooling flanges. The test flange is placed flat and provided with multiple O-ring seals, which can adapt to the tests of different models of pressure transmitters, with good sealing performance and good adaptability.

[0029] 2. The clamping function of the product can be quickly realized by the push of the air cylinder, making the assembly and disassembly of the product more convenient.

[0030] 3. A linear guide rail is provided on the tooling to ensure that the movement process of the claw jaws does not deviate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Brief descriptions are made on the content expressed by each drawing of the specification and the marks in the drawings:

[0032] Figure 1 is the structural schematic diagram of the differential test tooling in the embodiment;

[0033] Figure 2 is Figure 1 the side view structural schematic diagram;

[0034] Figure 3 is the three-dimensional view of the side view tooling in the embodiment;

[0035] Figure 4 is Figure 3 the structural schematic diagram of the test tooling with the limit blocks removed in ;

[0036] Figure 5 is the usage state diagram of the embodiment;

[0037] In the figure: 1. Support base; 2. Claw jaw; 3. Air cylinder; 4. Test flange; 5. Barbs; 6. O-ring seal; 7. Air hole; 8. Connecting block; 9. Inflatable sealing joint; 10. Scale line; 11. Guide rail; 12. Claw jaw fixing plate; 13. Guide block; 14. Accommodating groove; 15. Limit block; 16. Limit plate; 17. Pressure transmitter; 18. Pressure transmitter flange. Detailed implementation mode

[0038] The following gives a non-limiting embodiment in conjunction with the accompanying drawings to further elaborate on the present utility model. However, it should be understood that these descriptions are only illustrative and do not intend to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present utility model. Embodiment

[0039] As Figure 1 、 2 、3, 4, and 5 show a rapid test tooling for a diaphragm flange pressure transmitter, including a support base 1, two clamping claws 2 vertically and symmetrically arranged above the support base 1, a multiple power cylinder 3 fixedly arranged on the lower surface of the support base 1, and a test flange 4; a through hole is provided on the top plate of the support base 1, and the push rod of the multiple power cylinder 3 passes upward through the through hole and is fixedly connected to the center of the lower surface of the test flange 4, and the test flange 4 is horizontally arranged; an inverted hook 5 is provided at the top of the clamping claw 2, and the inverted hooks 5 all face the axis of the test flange 4, and the lower surfaces of the inverted hooks 5 of the two clamping claws 2 are on the same plane, and the test flange 4 is arranged below the two inverted hooks 5; three O-ring seals 6 for sealing pressure transmitter flanges 18 of different specifications are provided on the upper surface of the test flange 4, and the three O-ring seals 6 are concentric with the axis of the test flange 4; an air hole 7 for air intake communicating with the inside of the pressure transmitter 17 is provided in the middle of the test flange 4; the pressure transmitter flange 18 is placed flat on the test flange 4 and its liquid inlet hole is aligned with the air hole 7 on the test flange 4, and the two inverted hooks 5 clamp the upper surface of the pressure transmitter flange 18. Three circular grooves concentric with the test flange 4 are provided on the upper surface of the test flange 4, and O-ring seals 6 of different specifications are respectively arranged in circular grooves of different sizes, and the tops of the three O-ring seals 6 are all higher than the upper surface of the test flange 4. Three limiting scale lines 10 are provided on the upper surface of the test flange 4, and the scale lines 10 are circular and concentric with the test flange 4.

[0040] The clamping claws 2 are movably arranged along the radial direction of the test flange 4 above the support base 1. Two guide rails 11 are arranged in parallel on the support base 1 at the bottom of the clamping claws 2. The bottoms of the clamping claws 2 are respectively connected to the clamping claw fixing plates 12, and the bottoms of the clamping claw fixing plates 12 are connected to the guide blocks 13, and the guide blocks 13 slide along the guide rails 11 in the radial direction of the test flange 4. Two limiting blocks 15 are also provided on the upper surface of the support base 1, a gap is provided between the two limiting blocks 15, and the two clamping claws 2 are arranged in the gap; the test flange 4 is arranged above the two limiting blocks 15; the guide rails 11 are arranged between the gaps, and there are two notches on both sides of the gap, and the ends of the two notches are respectively provided with limiting plates 16 fixed on the two limiting blocks 15 to prevent the clamping claws 2 from slipping off. An accommodation groove 14 corresponding to the clamping claws 2 is provided on the periphery of the test flange 4.

[0041] AsFigure 2 , 3 As shown in FIGS. 3 and 4, a connecting block 8 is fixedly arranged at the free end of the push rod of the multiple-force cylinder 3. The other end of the connecting block 8 is fixedly connected to the bottom of the test flange 4. An air passage communicating with the air hole 7 on the test flange 4 is arranged in the connecting block 8. The air inlet of the air passage is arranged on the side surface of the connecting block 8. An air charging and sealing joint 9 is arranged at the air inlet. The air charging and sealing joint 9 at the air inlet is connected to the industrial control press.

[0042] As Figure 4 , 5 shown, when detecting the pressure transmitter 17, first lower the test flange 4 onto the limit block 15, then place the pressure transmitter flange 18 on top of the test flange 4, and align it with the scale line 10 on the surface of the corresponding test flange 4 according to the size of the pressure transmitter flange 18, so as to align the liquid inlet hole on the pressure transmitter flange 18; after alignment, control the multiple-force cylinder 3 to make its push rod push up the test flange 4. The test flange 4 lifts the pressure transmitter 17 until it abuts against the lower surface of the barb 5 of the claw 2, so that the sealing ring on the test flange 4 seals the pressure transmitter flange 18, thus forming a sealed environment. Finally, inflate the pressure transmitter 17 through the air charging and sealing joint 9, and collect relevant data through the upper computer test system, thereby completing the test of the diaphragm flange pressure transmitter 17.

[0043] After the test is completed, move the push rod of the multiple-force cylinder 3 downward, and the product disengages from the claw 2. Deliver the qualified product to the next process to complete the use of the rapid test tooling for the diaphragm flange pressure transmitter.

[0044] In the description of the present invention, it should be understood that if terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, if terms such as "first", "second", etc. are used, they are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "multiple" is two or more.

[0045] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, if the terms "installation", "connection", and "linkage" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

Claims

1. A rapid test tooling for a diaphragm flange pressure transmitter, characterized in that It includes a support base (1), several clamping claws (2) vertically arranged above the support base (1), a cylinder fixedly arranged on the lower surface of the support base (1), and a test flange (4); a through hole is formed in the top plate of the support base (1), the push rod of the cylinder passes upward through the through hole and is fixedly connected to the center of the lower surface of the test flange (4), and the test flange (4) is horizontally arranged; several of the clamping claws (2) are symmetrically arranged around the test flange (4), an inverted hook (5) is arranged at the top of the clamping claw (2), and all the inverted hooks (5) face the axis of the test flange (4), the lower surfaces of the inverted hooks (5) of several of the clamping claws (2) are in the same plane, and the test flange (4) is arranged below several inverted hooks (5); several O-ring seals (6) for sealing pressure transmitter flanges (18) of different specifications are arranged on the upper surface of the test flange (4), and several of the O-ring seals (6) are concentric with the axis of the test flange (4); an air hole (7) for air intake and communicating with the inside of the pressure transmitter (17) is formed in the middle of the test flange (4); the pressure transmitter flange (18) is placed flat on the test flange (4) and its liquid inlet hole is aligned with the air hole (7) on the test flange (4), and several of the inverted hooks (5) clamp the upper surface of the pressure transmitter flange (18).

2. The rapid test tooling for a diaphragm flange pressure transmitter according to claim 1, wherein, A connecting block (8) is fixedly arranged at the free end of the push rod of the cylinder, the other end of the connecting block (8) is fixedly connected to the bottom of the test flange (4), an air passage communicating with the air hole (7) on the test flange (4) is arranged in the connecting block (8), the air inlet of the air passage is arranged on the side surface of the connecting block (8), and an inflation sealing joint (9) is arranged at the air inlet, and the inflation sealing joint (9) at the air inlet is connected to an industrial control press.

3. The rapid testing tooling for a diaphragm flange pressure transmitter according to claim 1, characterized in that, The cylinder is a multiple-acting cylinder (3).

4. The rapid test tooling for a diaphragm flange pressure transmitter as described in claim 1, characterized in that, Several concentric circular grooves are arranged on the upper surface of the test flange (4), O-ring seals (6) of different specifications are respectively arranged in circular grooves of different sizes, and the tops of several of the O-ring seals (6) are higher than the upper surface of the test flange (4).

5. The rapid test tooling for a diaphragm flange pressure transmitter according to claim 4, characterized in that, Several scale lines (10) for limiting are arranged on the upper surface of the test flange (4), and the scale lines (10) are circular and concentric with the test flange (4).

6. The rapid test tooling for a diaphragm flange pressure transmitter as described in claim 1, characterized in that, Several of the clamping claws (2) are arranged in axial symmetry or mirror symmetry.

7. The rapid testing tooling for a diaphragm flange pressure transmitter according to claim 1, characterized in that The clamping claws (2) are arranged to move radially along the test flange (4) above the support base (1), two guide rails (11) are arranged in parallel on the support base (1) at the bottom of the clamping claws (2), the bottoms of the clamping claws (2) are respectively connected to a clamping claw fixing plate (12), the bottom of the clamping claw fixing plate (12) is connected to a guide block (13), and the guide block (13) slides radially along the guide rail (11) with respect to the test flange (4).

8. The rapid test tooling for a diaphragm flange pressure transmitter according to claim 7, characterized in that, A receiving groove (14) corresponding to the clamping claws (2) is arranged around the test flange (4).

9. The rapid testing tooling for a diaphragm flange pressure transmitter according to claim 7, characterized in that There are two of the clamping claws (2), which are arranged in mirror symmetry.

10. A rapid test tooling for a diaphragm flange pressure transmitter as described in claim 7, characterized in that, On the upper surface of the support base (1), there are also two limit blocks (15) provided. A gap is provided between the two limit blocks (15), and the two clamping claws (2) are arranged in this gap; the test flange (4) is arranged above the two limit blocks (15); the guide rail (11) is arranged between the gaps and has two notches on both sides of the gap. The end parts of the two notches are respectively provided with limit plates (16) fixed on the two limit blocks (15) to prevent the clamping claws (2) from slipping off.

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