Tensile pressure measuring mechanism

Abstract

The utility model discloses a stretching pressure measuring mechanism which comprises a workbench, a horizontal moving platform, a moving pressure measuring air cylinder and a fixed pressure measuring air cylinder, the horizontal moving platform, the moving pressure measuring air cylinder and the fixed pressure measuring air cylinder are arranged on the workbench, and the moving pressure measuring air cylinder is installed on the horizontal moving platform which drives the moving pressure measuring air cylinder to slide horizontally. The stretching pressure measuring mechanism further comprises a transferring assembly and a clamping assembly. The transferring assembly clamps and drives the air pipe to move horizontally. The clamping assembly comprises a clamping jaw and a clamping jaw air cylinder, and the clamping jaw air cylinder drives the clamping jaw to be closed or loosened and is used for clamping the air pipe. The transferring assembly clamps and drives one end of the air pipe to be installed on the fixed pressure measuring air cylinder, the clamping assembly clamps one end of the air pipe, the movable pressure measuring air cylinder fixes the other end of the air pipe, the movable pressure measuring air cylinder drives the air pipe to stretch, and the fixed pressure measuring air cylinder conducts air tightness testing on the air pipe. The stretching pressure measuring mechanism is provided with the movable pressure measuring air cylinder and the fixed pressure measuring air cylinder, stretching of the air pipe and measurement of sealing performance are achieved at the same time, time is saved, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tracheal testing technology, and in particular to a tensile pressure measuring mechanism. Background Technology

[0002] With the transformation of production processes, more and more automated equipment is being deployed in production lines to replace manual labor in simple, repetitive assembly line tasks, thereby reducing labor costs and improving productivity and corporate competitiveness. Currently, stretchable tubing requires manual testing of the sealing performance of each individual tube, resulting in low automation and significantly impacting production efficiency. While some automated testing facilities can automatically stretch tubing before transferring it to an automated testing facility to measure the sealing performance, there is currently no automated equipment that can simultaneously stretch tubing and measure its sealing performance. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a tensile pressure testing mechanism that can simultaneously stretch the air tube and test its sealing performance, thus avoiding all or some of the above-mentioned defects.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a tensile pressure testing mechanism for testing stretchable air tubes. The tensile pressure testing mechanism includes a worktable and a horizontal moving platform, a moving pressure testing cylinder, and a fixed pressure testing cylinder disposed on the worktable. The moving pressure testing cylinder is installed on the horizontal moving platform, and the horizontal moving platform can drive the moving pressure testing cylinder to slide horizontally. The fixed pressure testing cylinder is at the same height as the moving pressure testing cylinder.

[0005] The tensile pressure measuring mechanism further includes a transfer component and a clamping component. The transfer component is used to clamp and drive the air tube to move horizontally. The clamping component includes a gripper and a gripper cylinder. The gripper cylinder drives the gripper to close or open. The clamping component is used to clamp the air tube.

[0006] After the air tube is placed on the transfer assembly, the transfer assembly clamps and drives one end of the air tube to be installed on the fixed pressure measuring cylinder. The clamping assembly clamps one end of the air tube, and the moving pressure measuring cylinder fixes the other end of the air tube. The moving pressure measuring cylinder slides horizontally to stretch the air tube. The fixed pressure measuring cylinder is used to perform an airtightness test on the air tube.

[0007] The transfer assembly includes a first tension stop and a tension moving cylinder. The first tension stop is adjacent to the fixed pressure measuring cylinder. The first tension stop is used to clamp the air tube. The tension moving cylinder drives the first tension stop to move laterally, so that one end of the air tube is installed on the fixed pressure measuring cylinder.

[0008] The transfer assembly further includes a second tension stop, which is located between the movable pressure measuring cylinder and the first tension stop, and is used to clamp the air tube.

[0009] The tensile pressure measuring mechanism further includes multiple sets of sensing components, which are distributed along the length of the horizontal moving platform.

[0010] The sensing component includes a first sensor, a second sensor, and a third sensor. The first sensor and the third sensor are located at both ends of the trachea, and the second sensor is located in the middle of the trachea.

[0011] The sensing assembly further includes a first sensor mounting plate, a second sensor mounting plate, and a third sensor mounting plate. The first sensor mounting plate is fixed to the movable pressure measuring cylinder, and the second and third sensor mounting plates are fixed to the worktable. The first sensor, the second sensor, and the third sensor are respectively mounted on the first sensor mounting plate, the second sensor mounting plate, and the third sensor mounting plate.

[0012] The first sensor, the second sensor, and the third sensor are all fiber optic sensors.

[0013] The tensile pressure measuring mechanism further includes a support assembly for supporting the air tube.

[0014] The bracket assembly includes at least a first bracket and a second bracket, both of which are located below the air tube and are capable of moving upward to contact the bottom of the air tube.

[0015] The bracket assembly further includes a first bracket lifting cylinder and a second bracket lifting cylinder, which are used to push the first bracket and the second bracket to move in the vertical direction, respectively.

[0016] The bracket assembly further includes a first bracket moving cylinder, which is used to drive the first bracket to move horizontally to the bottom of the air pipe.

[0017] The horizontal moving platform is a slide servo module.

[0018] Compared with the prior art, the beneficial effects of the tensile pressure measuring mechanism of this utility model are: by setting up a movable pressure measuring cylinder and a fixed pressure measuring cylinder, it can simultaneously stretch the air tube and measure the sealing performance, saving time and improving production efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the tensile pressure measuring mechanism of this utility model;

[0021] Figure 2 This is a side view of the tensile pressure measuring mechanism of this utility model;

[0022] Figure 3 This is a top view of the tensile pressure measuring mechanism of this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indicator will also change accordingly. The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the tensile pressure testing mechanism of this utility model, used to test a stretchable air tube 10. The air tube 10 can be a hollow tube with a certain degree of elasticity, and the material can be plastic, rubber, etc. The tensile pressure testing mechanism includes a worktable 1 and a horizontally moving platform 2, a moving pressure testing cylinder 3, and a fixed pressure testing cylinder 4 set on the worktable 1. The worktable 1 is placed horizontally on a horizontal plane and can be a work frame with a horizontal working surface or a flat plate. In this application, the worktable 1 is a flat plate. For ease of understanding, in this application, the length direction of the worktable 1 is referred to as the horizontal direction, and the direction perpendicular to the length direction of the worktable 1 is referred to as the vertical direction.

[0027] The horizontal moving platform 2 is a platform capable of driving other components to move horizontally. The moving pressure testing cylinder 3 is mounted on the horizontal moving platform 2, and the horizontal moving platform 2 can drive the moving pressure testing cylinder 3 to slide horizontally. In this application, the horizontal moving platform is a slide servo module. The fixed pressure testing cylinder 4 is used to perform an airtightness test on the stretched air pipe 10. The fixed pressure testing cylinder 4 and the moving pressure testing cylinder 3 have the same height. During the tensile test, the two are fixed at both ends of the length direction of the air pipe 10 respectively. The fact that the fixed pressure testing cylinder 4 and the moving pressure testing cylinder 3 have the same height can ensure the accuracy of the tensile length and the reliability of the subsequent internal leakage test of the air pipe 10.

[0028] The tensile pressure testing mechanism also includes a transfer assembly 5 and a clamping assembly 6. The transfer assembly 5 is used to clamp and move the air tube 10 horizontally. Specifically, it clamps the air tube 10 and moves one end of the air tube 10 along its length to the fixed pressure testing cylinder 4, thereby connecting one end of the air tube 10 to the fixed pressure testing cylinder 4. The clamping assembly 6 includes a gripper 61 and a gripper cylinder 62. The gripper cylinder 62 drives the gripper 61 to close or open, and the clamping assembly 6 is used to clamp the air tube 10. After the transfer assembly 5 moves the air tube 10 to a preset position, the gripper cylinder 62 drives the gripper 61 to clamp the air tube 10, thereby positioning the air tube 10.

[0029] The testing process of the tensile pressure testing mechanism of this application is as follows: After the air tube 10 is placed on the transfer assembly 5, the transfer assembly 5 clamps and drives one end of the air tube 10 to be installed on the fixed pressure testing cylinder 4. At this time, one end of the air tube 10 is connected to the fixed pressure testing cylinder 4. Then, the clamping assembly 6 clamps the end of the air tube 10 connected to the fixed pressure testing cylinder 4 to position the air tube 10. The moving pressure testing cylinder 3 fixes the other end of the air tube 10. The horizontal moving platform 2 drives the moving pressure testing cylinder 3 to slide horizontally. During the sliding process, the moving pressure testing cylinder 3 drives the air tube 10 to stretch. The stretching length of the air tube 10 is related to the test requirements and can be preset in the control program of the automated equipment. After the air tube 10 is stretched to the predetermined length, the fixed pressure testing cylinder 4 is used to perform an airtightness test on the air tube 10 to check whether there is any leakage in the stretched air tube 10.

[0030] In this application, the transfer assembly 5 includes a first tension stop 51 and a tension moving cylinder 52. The first tension stop 51 is arranged adjacent to the fixed pressure measuring cylinder 4. The first tension stop 51 is used to clamp the air tube 10. The tension moving cylinder 52 drives the first tension stop 51 to move horizontally, so that one end of the air tube 10 is installed on the fixed pressure measuring cylinder 4.

[0031] The transfer assembly 5 in this application also includes a second tension stop 53, which is located between the movable pressure measuring cylinder 3 and the first tension stop 51, and is adjacent to the movable pressure measuring cylinder 3. The second tension stop 53 is also used to clamp the air tube 10. The first tension stop 51 and the second tension stop 53 clamp the two ends of the air tube 10 in the horizontal direction, respectively. The difference between the second tension stop 53 and the first tension stop 51 is that the second tension stop 53 does not move during use.

[0032] The tensile pressure measuring mechanism in this application also includes multiple sets of sensing components 7, which are distributed along the length of the horizontal moving platform 2. The sensing components 7 are used to sense the position of the air tube 10. When the sensing components 7 sense that the air tube 10 is placed in the preset position, the moving pressure measuring cylinder 3, the transfer component 5, and the clamping component 6 will operate according to the set steps.

[0033] In this application, the sensing component 7 includes a first sensor, a second sensor, and a third sensor. The first and third sensors are located at both ends of the trachea 10, and the second sensor is located in the middle of the trachea 10, facilitating the sensing of the entire trachea 10. Of course, in practical applications, more sensors can be installed to more accurately sense various parts of the trachea 10.

[0034] The sensing assembly 7 also includes a first sensor fixing plate 71, a second sensor fixing plate 72, and a third sensor fixing plate 73. The first sensor fixing plate 71 is fixed on the movable pressure measuring cylinder 3, and the second sensor fixing plate 72 and the third sensor fixing plate 73 are fixed on the worktable 1. The first sensor, the second sensor, and the third sensor are respectively installed on the first sensor fixing plate 71, the second sensor fixing plate 72, and the third sensor fixing plate 73.

[0035] In this application, the first sensor, the second sensor, and the third sensor are all fiber optic sensors.

[0036] The tensile pressure testing mechanism in this application also includes a support assembly 8, which is used to support the air tube 10. Because the air tube 10 is made of a relatively soft material, its middle section will bend downwards due to gravity during tensile testing, causing the air tube 10 to not be on the same horizontal plane. This makes it impossible to guarantee the accuracy of the tensile length and the airtightness test after tensile testing. Therefore, the support assembly 8 is provided to support the middle section of the air tube 10, avoiding the aforementioned defects.

[0037] The support assembly 8 includes at least a first support 81 and a second support 82. The first support 81 is positioned opposite the end of the air tube 10 that is axially adjacent to the movable pressure measuring cylinder 3. The second support 82 is positioned opposite the middle of the air tube 10. The end of the air tube 10 closest to the fixed pressure measuring cylinder 4 is already clamped by the clamping assembly 6, so no further lifting is required. Both the first support 81 and the second support 82 are located below the air tube 10, and both are spaced from the bottom of the air tube 10. The first support 81 and the second support 82 can move upward to contact the bottom of the air tube 10, lifting the bottom of the air tube 10 and counteracting the effect of gravity. Through the above arrangement, all parts of the air tube 10 along its length are clamped or lifted, preventing the air tube 10 from sagging due to gravity, which would affect the accuracy of the stretching and testing.

[0038] In this application, the bracket assembly 8 also includes a first bracket lifting cylinder 83 and a second bracket lifting cylinder 84. The first bracket lifting cylinder 83 and the second bracket lifting cylinder 84 are respectively used to push the first bracket 81 and the second bracket 82 to move vertically. In the initial state, the first bracket 81 and the second bracket 82 are located in a lower position, which facilitates the transfer assembly 5 to clamp the air pipe 10 and drive it to move horizontally, avoiding positional conflicts between components. After the air pipe 10 is connected to the fixed pressure measuring cylinder 4, the first bracket lifting cylinder 83 and the second bracket lifting cylinder 84 respectively push the first bracket 81 and the second bracket 82 upward until they abut against the bottom of the air pipe 10. After stretching and testing the air pipe 10, the first bracket lifting cylinder 83 and the second bracket lifting cylinder 84 respectively drive the first bracket 81 and the second bracket 82 to descend to the initial position.

[0039] The tray assembly 8 in this application also includes a first tray moving cylinder 85, which is used to move the first tray 81 horizontally to the bottom of the air pipe 10. The position of the first tray 81 is close to the moving pressure measuring cylinder 3. During the overall process, the moving pressure measuring cylinder 3 needs to slide horizontally within a certain range. To avoid positional conflict with the moving pressure measuring cylinder 3, the first tray 81 is set parallel to the moving pressure measuring cylinder 3. After the moving pressure measuring cylinder 3 stretches the air pipe 10 to a preset length, the first tray moving cylinder 85 pushes the first tray 81 to a position parallel to the moving pressure measuring cylinder 3, and then the first tray lifting cylinder 83 pushes the first tray 81 up until it contacts the air pipe 10. After the test is completed, the first tray moving cylinder 85 moves the first tray 81 back to its original position.

[0040] In this application, the horizontal moving platform 2 is a slide servo module. The core components of the slide servo module include a servo driver, a servo motor, a slider, and a linear guide. The servo motor, controlled by the servo driver, drives the slider to move precisely along the linear guide. This design enables the slide servo module to maintain high precision during long-term operation and can be customized according to user needs.

[0041] The entire operation process of the tensile pressure testing mechanism of this application is as follows: After the air tube 10 is placed on the transfer component 5, the sensing component 7 senses the air tube 10, and the second slot 82 of the slot component 8 drives the air tube 10 to move upward. The transfer component 5 clamps and drives one end of the air tube 10 to be installed on the fixed pressure testing cylinder 4. At this time, one end of the air tube 10 is connected to the fixed pressure testing cylinder 4. Then, the clamping component 6 clamps the end of the air tube 10 connected to the fixed pressure testing cylinder 4 to position the air tube 10. The moving pressure testing cylinder 3 fixes the other end of the air tube 10, and the horizontal moving platform 2 drives the moving pressure testing cylinder 3 to slide horizontally. During the sliding process, the moving pressure testing cylinder 3 drives the air tube 10 to stretch. The stretching length of the air tube 10 is related to the test requirements and can be preset in the control program of the automated equipment. After the trachea 10 is stretched to a certain length, the first support 81 in the support assembly 8 is driven by the first support moving cylinder 85 and the first support lifting cylinder 83, moving horizontally and rising vertically in sequence until it contacts the trachea 10, thus supporting the trachea 10. At this time, one end of the trachea 10 is clamped by the moving pressure measuring cylinder 3, and the other end is connected to the fixed pressure measuring cylinder 4. The middle part is supported by the first support 81 and the second support 82, and the part near the fixed pressure measuring cylinder 4 is also clamped by the clamping assembly 6. All parts of the trachea 10 are clamped or supported, so that the entire trachea 10 is on the same horizontal line, avoiding the influence of its own weight. Then, the moving pressure measuring cylinder 3 continues to stretch the trachea 10 to the predetermined length. The fixed pressure measuring cylinder 4 is used to perform an airtightness test on the trachea 10 to check whether there is any leakage after stretching. After the test is completed, the first bracket 81 and the second bracket 82 are driven by the cylinder to return to their original positions. The moving pressure measuring cylinder 3 moves to its original position before stretching. The moving pressure measuring cylinder 3, the fixed pressure measuring cylinder 4, the transfer component 5 and the clamping component 6 all release the air pipe 10, and the stretching pressure measuring mechanism completes the entire action process.

[0042] The tensile pressure measuring mechanism of this invention, by setting up a movable pressure measuring cylinder and a fixed pressure measuring cylinder, simultaneously achieves the stretching of the air tube and the measurement of the sealing performance, saving time and improving production efficiency.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tensile pressure testing mechanism for testing a stretchable air tube, characterized in that, The tensile pressure testing mechanism includes a worktable and a horizontal moving platform, a moving pressure testing cylinder, and a fixed pressure testing cylinder disposed on the worktable. The moving pressure testing cylinder is installed on the horizontal moving platform, and the horizontal moving platform can drive the moving pressure testing cylinder to slide horizontally. The fixed pressure testing cylinder is at the same height as the moving pressure testing cylinder. The tensile pressure measuring mechanism further includes a transfer component and a clamping component. The transfer component is used to clamp and drive the air tube to move horizontally. The clamping component includes a gripper and a gripper cylinder. The gripper cylinder drives the gripper to close or open. The clamping component is used to clamp the air tube. After the air tube is placed on the transfer assembly, the transfer assembly clamps and drives one end of the air tube to be installed on the fixed pressure measuring cylinder. The clamping assembly clamps one end of the air tube, and the moving pressure measuring cylinder fixes the other end of the air tube. The moving pressure measuring cylinder slides horizontally to stretch the air tube. The fixed pressure measuring cylinder is used to perform an airtightness test on the air tube.

2. The tensile compression measuring mechanism according to claim 1, characterized in that, The transfer assembly includes a first tension stop and a tension moving cylinder. The first tension stop is adjacent to the fixed pressure measuring cylinder. The first tension stop is used to clamp the air tube. The tension moving cylinder drives the first tension stop to move laterally, so that one end of the air tube is installed on the fixed pressure measuring cylinder.

3. The tensile compression measuring mechanism according to claim 2, characterized in that, The transfer assembly further includes a second tension stop, which is located between the movable pressure measuring cylinder and the first tension stop, and is used to clamp the air tube.

4. The tensile compression measuring mechanism according to claim 1, characterized in that, The tensile pressure measuring mechanism also includes multiple sets of sensing components, which are distributed along the length of the horizontal moving platform.

5. The tensile compression measuring mechanism according to claim 4, characterized in that, The sensing component includes a first sensor, a second sensor, and a third sensor. The first sensor and the third sensor are located at both ends of the trachea, and the second sensor is located in the middle of the trachea. The sensing assembly further includes a first sensor mounting plate, a second sensor mounting plate, and a third sensor mounting plate. The first sensor mounting plate is fixed to the movable pressure measuring cylinder, and the second and third sensor mounting plates are fixed to the worktable. The first sensor, the second sensor, and the third sensor are respectively mounted on the first sensor mounting plate, the second sensor mounting plate, and the third sensor mounting plate.

6. The tensile compression measuring mechanism according to claim 5, characterized in that, The first sensor, the second sensor, and the third sensor are all fiber optic sensors.

7. The tensile compression measuring mechanism according to claim 1, characterized in that, The tensile pressure measuring mechanism also includes a support assembly for supporting the air tube; The bracket assembly includes at least a first bracket and a second bracket, both of which are located below the air tube and are capable of moving upward to contact the bottom of the air tube.

8. The tensile compression measuring mechanism according to claim 7, characterized in that, The bracket assembly further includes a first bracket lifting cylinder and a second bracket lifting cylinder, which are used to push the first bracket and the second bracket to move in the vertical direction, respectively.

9. The tensile compression measuring mechanism according to claim 8, characterized in that, The bracket assembly further includes a first bracket moving cylinder, which is used to drive the first bracket to move horizontally to the bottom of the air pipe.

10. The tensile compression measuring mechanism according to claim 1, characterized in that, The horizontal moving platform is a slide servo module.

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