A high-precision airtightness testing machine

Abstract

This utility model discloses a high-precision airtightness testing machine, relating to the field of airtightness testing technology. The utility model includes a testing box with upper and lower cylinders on the top and a testing instrument on the side. A sealing cover is fixedly connected to the bottom of the upper and lower cylinders. A moving mechanism is installed inside the testing box. During airtightness testing, the operator places the product to be tested on a placement platform and clamps it using springs and a clamping arc plate. After starting the motor, the motor drives the threaded rod to rotate, causing the moving sleeve to slide within a stabilizing groove via a stabilizing rod. This, in turn, causes the placement platform to precisely position the product. Subsequently, the upper and lower cylinders move the sealing cover, cooperating with the testing mold to complete the airtightness test. The test results are displayed on the testing instrument. This design achieves automated adjustment and precise positioning of the product, improving testing efficiency and accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of airtightness testing technology, and in particular relates to a high-precision airtightness testing machine. Background Technology

[0002] An airtightness testing machine is an instrument used to test whether an object or equipment has good airtightness. It is widely used in manufacturing, automotive, electronics, home appliance and other industries.

[0003] According to a publicly disclosed airtightness testing fixture (publication number: CN 220708633U), it includes a cylinder, a volume adjustment tank, a support column, a protective cover, a base plate, a guide rod, a guide plate, a top plate, a mounting template, an upper mold, a sealing ring, and a lower mold. The bottom of the support column is fixed to the base plate, and the top plate is fixed to the top of the support column. The cylinder, volume adjustment tank, and guide plate are set on the top plate. The mounting template is screwed into the screw of the cylinder. The upper mold is installed at the bottom of the mounting template, and the lower mold is installed on the upper surface of the base plate. The two facing surfaces of the lower mold and the upper mold have cavities for placing the product to be tested. The contact surface between the lower mold and the upper mold has a groove, and a sealing ring is set in the groove. The side wall of the lower mold has air holes for testing the airtightness of the cavity. The protective cover is fixed to the support column and surrounds three sides between the base plate and the top plate, with one side open for inserting and removing the product to be tested.

[0004] In the aforementioned application, the cooperation between the volume adjustment tank and the lower mold assembly cannot effectively solve the problem of product positioning and conveying. This problem requires manual intervention to pick up the product during each inspection, thereby reducing the degree of automation. In addition, due to the design limitations of the volume adjustment tank, picking up the product becomes more difficult, further restricting the operating efficiency and the smoothness of the production line. Therefore, we propose a high-precision airtightness testing machine. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision airtightness testing machine. Through the design of components such as the motor of the moving mechanism, the placement stage, and the clamping arc plate, the problems of product positioning and clamping stability in the prior art are solved.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a high-precision airtightness testing machine, including a testing box, an upper and lower cylinder is provided on the top of the testing box, a testing instrument is provided on the side of the testing box, a sealing cover is fixedly connected to the bottom of the upper and lower cylinders, and a moving mechanism is provided inside the testing box.

[0008] The moving mechanism includes a motor, which is fixedly connected to the inner wall of the testing box. The output shaft of the motor is fixedly connected to a threaded rod, and a moving sleeve is threadedly connected to the circumferential surface of the threaded rod. A support plate is fixedly connected to the top of the moving sleeve, and a placement platform is provided on the top of the support plate. A testing mold is provided inside the placement platform, the purpose of which is to ensure that the product can be moved and positioned.

[0009] Furthermore, a compression spring is fixedly connected inside the placement platform, and a clamping arc plate is fixedly connected to the end of the compression spring away from the inside of the placement platform. The purpose of this is to clamp the product on top of the placement platform and prevent it from shaking.

[0010] Furthermore, the inside of the testing box is provided with a stabilizing groove, and a stabilizing rod is slidably connected inside the stabilizing groove. The end of the stabilizing rod away from the inside of the stabilizing groove is fixedly connected to the bottom of the support plate. The purpose of this is to ensure that the moving sleeve can move stably and improve the stability of the product.

[0011] Furthermore, there are two compression springs and clamping arc plates, which are symmetrical to each other along the vertical central axis of the moving sleeve. The purpose is to clamp the product on both sides and ensure that the product will not shake due to external forces.

[0012] Furthermore, the movable sleeve is provided with a pushing mechanism, which includes a moving groove. The moving groove is opened inside the movable sleeve. A force-bearing rod is slidably connected inside the moving groove. A push plate is fixedly connected to the top of the force-bearing rod. An inclined plate is fixedly connected inside the detection box. The purpose of this mechanism is to push the detected product, release the clamp, and facilitate the handling of the product by the staff.

[0013] Furthermore, a compression spring is fixedly connected inside the movable groove, and the end of the compression spring away from the movable groove is fixedly connected to the bottom of the force-bearing rod. The purpose of this is to ensure that the force-bearing rod can automatically reset and reduce manual intervention.

[0014] Furthermore, the side of the force-bearing rod is located on the displacement trajectory of the inclined plate, the purpose of which is to ensure that the movement of the force-bearing rod can be achieved through the inclined plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model utilizes the coordinated operation of components such as the motor, placement platform, and clamping arc plate of the moving mechanism. During seal testing, the operator places the product to be tested on the placement platform and clamps it using springs and the clamping arc plate. After starting the motor, the motor drives the threaded rod to rotate, causing the moving sleeve to slide within the stabilizing groove via the stabilizing rod. This, in turn, causes the placement platform to precisely position the product. Subsequently, the upper and lower cylinders move the sealing cover, cooperating with the testing mold to complete the seal test. The test results are displayed on the testing instrument. This design achieves automated adjustment and precise positioning of the product, improving testing efficiency and accuracy.

[0017] 2. This utility model utilizes the interplay between components such as the moving groove, force-bearing rod, and push plate of the pushing mechanism. After testing, the motor reverses, the moving sleeve resets, and the product is moved out of the testing box. The moving sleeve drives the force-bearing rod to move, which cooperates with the inclined plate and slides within the moving groove, thereby pushing the push plate to disengage the product from the clamping arc plate, releasing it from fixation and facilitating handling and replacement by staff. This design achieves the effect of pushing the tested product, improving operational convenience and efficiency.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] 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. 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 diagram of the testing box of this utility model;

[0021] Figure 2 This is a three-dimensional cross-sectional structural schematic diagram of the detection box of this utility model;

[0022] Figure 3 This is a three-dimensional enlarged structural diagram of the moving mechanism of this utility model;

[0023] Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of A in the diagram;

[0024] Figure 5 This utility model Figure 3 A three-dimensional magnified structural diagram of B.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Testing box; 2. Upper and lower cylinders; 3. Testing instrument; 4. Sealing cover; 5. Moving mechanism; 51. Motor; 52. Threaded rod; 53. Moving sleeve; 54. Support plate; 55. Placement platform; 56. Testing mold; 57. Compression spring; 58. Clamping arc plate; 59. Stabilizing groove; 510. Stabilizing rod; 6. Pushing mechanism; 61. Moving groove; 62. Force rod; 63. Push plate; 64. Inclined plate; 65. Compression spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. 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.

[0028] Please see Figures 1-5 This utility model is a high-precision airtightness testing machine, including a testing box 1, an upper and lower cylinder 2 is provided on the top of the testing box 1, a testing instrument 3 is provided on the side of the testing box 1, a sealing cover 4 is fixedly connected to the bottom of the upper and lower cylinder 2, and a moving mechanism 5 is provided inside the testing box 1.

[0029] The moving mechanism 5 includes a motor 51, which is fixedly connected to the inner wall of the detection box 1. The output shaft of the motor 51 is fixedly connected to a threaded rod 52. A moving sleeve 53 is threadedly connected to the circumferential surface of the threaded rod 52. A support plate 54 is fixedly connected to the top of the moving sleeve 53. A placement platform 55 is provided on the top of the support plate 54. A detection mold 56 is provided inside the placement platform 55. The purpose is to ensure that the product can move and be positioned.

[0030] As shown in the figure, a compression spring 57 is fixedly connected inside the placement platform 55. A clamping arc plate 58 is fixedly connected to one end of the compression spring 57 away from the inside of the placement platform 55. The purpose of the clamping spring 57 is to clamp the product on the top of the placement platform 55 and prevent it from shaking.

[0031] As shown in the figure, the inside of the test box 1 is provided with a stabilizing groove 59, and a stabilizing rod 510 is slidably connected inside the stabilizing groove 59. The end of the stabilizing rod 510 away from the inside of the stabilizing groove 59 is fixedly connected to the bottom of the support plate 54. The purpose is to ensure that the moving sleeve 53 can move stably and improve the stability of the product.

[0032] As shown in the figure, there are two compression springs 57 and clamping arc plates 58, which are symmetrical to each other along the vertical central axis of the moving sleeve 53. The purpose is to clamp the product on both sides and ensure that the product will not shake under external force.

[0033] As shown in the figure, the movable sleeve 53 is equipped with a pushing mechanism 6. The pushing mechanism 6 includes a moving groove 61, which is opened inside the movable sleeve 53. A force-bearing rod 62 is slidably connected inside the moving groove 61. A push plate 63 is fixedly connected to the top of the force-bearing rod 62. An inclined plate 64 is fixedly connected inside the detection box 1. The purpose of this is to push the detected product, release the clamp, and facilitate the staff to pick it up.

[0034] As shown in the figure, a compression spring 65 is fixedly connected inside the moving groove 61. The end of the compression spring 65 away from the moving groove 61 is fixedly connected to the bottom of the force-bearing rod 62. The purpose of this is to ensure that the force-bearing rod 62 can automatically reset and reduce manual intervention.

[0035] As shown in the figure, the side of the force-bearing rod 62 is located on the displacement trajectory of the inclined plate 64. The purpose of this is to ensure that the movement of the force-bearing rod 62 can be achieved through the inclined plate 64.

[0036] A specific application of this embodiment is as follows: When a product needs to be sealed for testing, the operator places the product to be tested on the placement platform 55 and uses the compression spring 57 and the clamping arc plate 58 to stably clamp the product. Then, the motor 51 is started, and the output shaft of the motor 51 rotates. The rotation of the output shaft of the motor 51 drives the threaded rod 52 to rotate, and the rotation of the threaded rod 52 drives the moving sleeve 53 to move. The moving sleeve 53 moves stably and slides inside the stabilizing groove 59 through the stabilizing rod 510. The movement of the moving sleeve 53 drives the placement platform 55 on the support plate 54 to move. The movement of the placement platform 55 moves and positions the product to ensure that the position is correct. Then, the upper and lower cylinders 2 drive the sealing cover 4 to move. The sealing test is performed on the product by the cooperation of the detection mold 56 and the sealing cover 4. The data after the test is displayed by the detection instrument 3.

[0037] After the test is completed, the motor 51 reverses, causing the movable sleeve 53 to reset, thereby moving the product out of the test box 1. During the movement of the movable sleeve 53, the force rod 62 moves. During the movement of the force rod 62, it cooperates with the inclined plate 64 and moves inside the movable groove 61. The movement of the force rod 62 drives the push plate 63 to move. During the movement of the push plate 63, it pushes the product inside the placement table 55. The product is pushed away from the working range of the clamping arc plate 58, so that the product is released from fixation, making it convenient for staff to pick up and replace.

[0038] 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.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-precision airtightness testing machine, characterized in that, The test box (1) includes an upper and lower cylinder (2) on the top of the test box (1), a tester (3) on the side of the test box (1), a sealing cover (4) fixedly connected to the bottom of the upper and lower cylinder (2), and a moving mechanism (5) inside the test box (1). The moving mechanism (5) includes a motor (51), which is fixedly connected to the inner wall of the detection box (1). The output shaft of the motor (51) is fixedly connected to a threaded rod (52). The circumferential surface of the threaded rod (52) is threadedly connected to a moving sleeve (53). The top of the moving sleeve (53) is fixedly connected to a support plate (54). The top of the support plate (54) is provided with a placement platform (55). The interior of the placement platform (55) is provided with a detection mold (56).

2. The high-precision airtightness testing machine according to claim 1, characterized in that, A compression spring (57) is fixedly connected inside the placement platform (55), and a clamping arc plate (58) is fixedly connected to one end of the compression spring (57) away from the inside of the placement platform (55).

3. The high-precision airtightness testing machine according to claim 2, characterized in that, The inside of the detection box (1) is provided with a stabilizing groove (59), and a stabilizing rod (510) is slidably connected inside the stabilizing groove (59). One end of the stabilizing rod (510) away from the inside of the stabilizing groove (59) is fixedly connected to the bottom of the support plate (54).

4. A high-precision airtightness testing machine according to claim 3, characterized in that, There are two compression springs (57) and clamping arc plates (58), and they are symmetrical to each other along the vertical central axis of the moving sleeve (53).

5. A high-precision airtightness testing machine according to claim 4, characterized in that, The movable sleeve (53) is provided with a pushing mechanism (6) inside. The pushing mechanism (6) includes a moving groove (61) which is opened inside the movable sleeve (53). A force-bearing rod (62) is slidably connected inside the moving groove (61). A push plate (63) is fixedly connected to the top of the force-bearing rod (62). An inclined plate (64) is fixedly connected inside the detection box (1).

6. A high-precision airtightness testing machine according to claim 5, characterized in that, A compression spring (65) is fixedly connected inside the moving groove (61), and the end of the compression spring (65) away from the moving groove (61) is fixedly connected to the bottom of the force rod (62).

7. A high-precision airtightness testing machine according to claim 6, characterized in that, The side of the force-bearing rod (62) is located on the displacement trajectory of the inclined plate (64).

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