An air tightness detection device

Abstract

The utility model relates to a kind of air-tightness detection devices, including rack, lifting seat, fixed seat, clamp lower mould and clamp upper mould, the middle part of the rack is equipped with detection water tank;The lifting seat is up and down movement and is located at the top of the rack;The fixed seat is fixed and is located below the lifting seat by guide rod;The clamp lower mould is up and down movement and is located at the top of the fixed seat, the top of the clamp lower mould is also equipped with sealing element and air pipe, the air pipe is located at the both sides of the sealing element;The clamp upper mould is up and down movement and is located below the lifting seat.The utility model is matched with the sealing element of electronic communication product shell opening on the clamp lower mould, and is closed by air cylinder lifting to make clamp lower mould and clamp upper mould, and the shell opening is plugged;And, clamp upper mould bottom is distributed with multiple spring buffering pressure rod, and clamping mode is more flexible, and different size and shape electronic communication product shell can be adapted.

Description

Technical Field

[0001] This utility model relates to an airtightness testing device, belonging to the technical field of airtightness testing equipment. Background Technology

[0002] In the manufacturing process of electronic communication products, the airtightness testing of the casing is a crucial step that can affect the product's lifespan. Currently, the method for testing the airtightness of electronic communication product casings involves fixing the casing to a fixture and sealing its openings before testing. Air is then injected into the casing through an air tube, and the casing is placed in a water tank to observe whether bubbles are generated, thus determining the casing's airtightness.

[0003] Common sealing methods include manual sealing, using specialized sealing tools, and fixing with clamps. Although manual sealing is simple, it is cumbersome and prone to human error; while specialized sealing tools improve sealing accuracy, they still require manual assistance and are not very efficient; and traditional clamps mostly use fixed clamping methods, which cannot adapt to bent pipes of different sizes and shapes, and have poor flexibility.

[0004] Therefore, the research objective of this utility model is to provide an airtightness testing device for the casing of electronic communication products that is easy to seal openings and has a flexible clamping method. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this utility model provides an airtightness testing device. A sealing element matching the opening of the electronic communication product's casing is installed on the lower clamping mold. The lower clamping mold and the upper clamping mold are closed by a cylinder to seal the opening of the casing. Furthermore, multiple spring-loaded pressure rods are distributed at the bottom of the upper clamping mold, making the clamping method more flexible and adaptable to electronic communication product casings of different sizes and shapes.

[0006] To solve the problems of the existing technology, the technical solution adopted by this utility model is as follows: An airtightness testing device includes a frame, a lifting base, a fixed base, a lower clamping mold, and an upper clamping mold. A testing water tank is located in the middle of the frame. The lifting base is vertically movable at the top of the frame, and first cylinders driving the lifting base to rise or fall are located on both sides of the frame. The fixed base is fixed below the lifting base via guide rods. The lower clamping mold is vertically movable at the top of the fixed base, and a second cylinder driving the lower clamping mold to rise or fall is located on the fixed base. A sealing element and an air pipe are also located at the top of the lower clamping mold, with the air pipes located on both sides of the sealing element. The upper clamping mold is vertically movable below the lifting base, and a third cylinder driving the upper clamping mold to rise or fall is located on the lifting base. Several sets of vertically movable pressure rods are distributed at the bottom of the upper clamping mold, and springs are sleeved between the pressure rods and the upper clamping mold.

[0007] Furthermore, the fixed base and the clamping lower mold are both located above the detection water tank, and can be lowered into the detection water tank during detection.

[0008] Furthermore, the sidewalls of the testing tank are made of transparent tempered glass.

[0009] Furthermore, the sealing element includes a sealing gasket and a sealing ring, the sealing ring being disposed around the outside of the sealing gasket, and the sealing gasket and sealing ring being integrally fixed to the top of the clamping lower mold.

[0010] Furthermore, the pressure rod includes a guide portion and a pressure portion. The guide portion is vertically and flexibly mounted on the clamping die via a linear bearing. The pressure portion is located at the bottom of the guide portion, and the diameter of the top end of the pressure portion is larger than the diameter of the guide portion.

[0011] Furthermore, the spring is sleeved on the outside of the guide portion, with the top end of the spring abutting against the bottom of the clamping mold and the bottom end abutting against the top of the pressing portion.

[0012] The beneficial effects of this utility model are: 1. A sealing element matching the opening of the electronic communication product shell is set on the lower clamping mold, and the lower clamping mold and the upper clamping mold are closed by the cylinder to seal the opening of the shell; 2. Multiple pressure rods with spring buffers are distributed at the bottom of the upper clamping mold, making the clamping method more flexible and adaptable to electronic communication product shells of different sizes and shapes. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the present invention in a non-detection state.

[0014] Figure 2 This is a schematic diagram of the structure of this utility model in the detection state.

[0015] Figure 3 This is one of the partial structural schematic diagrams of this utility model.

[0016] Figure 4 This is the second partial structural schematic diagram of this utility model.

[0017] Figure 5 This is the third partial structural schematic diagram of this utility model.

[0018] Figure 6 This is a structural schematic diagram of the clamping mold and sealing element of this utility model.

[0019] Figure 7 This is a schematic diagram of the structure of the clamping mold of this utility model.

[0020] Figure 8 This is a schematic diagram of the structure of the pressure bar of this utility model.

[0021] The components include: frame 1, lifting seat 2, fixed seat 3, lower clamping mold 4, upper clamping mold 5, detection water tank 6, first cylinder 7, second cylinder 8, seal 9, air pipe 10, third cylinder 11, pressure rod 12, spring 13, sealing gasket 9a, sealing ring 9b, guide part 12a, and pressing part 12b. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the following description is provided in conjunction with the appendix. Figure 1-8 Further analysis of this utility model is then conducted.

[0023] like Figure 1-8 As shown, an airtightness testing device includes a frame 1, a lifting seat 2, a fixed seat 3, a lower clamping mold 4, and an upper clamping mold 5. A testing water tank 6 is located in the middle of the frame 1. The lifting seat 2 is vertically movable and positioned on the top of the frame 1. First cylinders 7 are located on both sides of the frame 1 to drive the lifting seat 2 to rise or fall. The fixed seat 3 is fixed below the lifting seat 2 via guide rods. The lower clamping mold 4 is vertically movable and positioned on the top of the fixed seat 3. A second cylinder 8 is located on the fixed seat 3 to drive the lower clamping mold 4 to rise or fall. A sealing element 9 and an air pipe 10 are also located on the top of the lower clamping mold 4, with the air pipe 10 located on both sides of the sealing element 9. The upper clamping mold 5 is vertically movable and positioned below the lifting seat 2. A third cylinder 11 is located on the lifting seat 2 to drive the upper clamping mold 5 to rise or fall. Several sets of vertically movable pressure rods 12 are distributed at the bottom of the upper clamping mold 5, and springs 13 are sleeved between the pressure rods 12 and the upper clamping mold 5.

[0024] In this embodiment, preferably, the fixing seat 3 and the clamping lower mold 4 are both located above the detection water tank 6, and can be lowered into the detection water tank 6 during detection.

[0025] In this embodiment, preferably, the sidewall of the detection water tank 6 is made of transparent tempered glass, which makes it easy to observe whether bubbles are generated inside the detection water tank 6, and is durable and the material will not age or change color.

[0026] In this embodiment, preferably, the sealing element 9 includes a sealing gasket 9a and a sealing ring 9b. The sealing ring 9b is arranged around the outside of the sealing gasket 9a. The sealing gasket 9a and the sealing ring 9b are integrally fixed on the top of the clamping mold 4. The sealing gasket 9a is used to seal the opening of the outer shell, while the sealing ring 9b is used to seal the outer edge of the opening of the outer shell, thereby achieving a double sealing effect.

[0027] In this embodiment, preferably, the pressure rod 12 includes a guide part 12a and a pressure part 12b. The guide part 12a is vertically and flexibly mounted on the clamping mold 5 via a linear bearing. The pressure part 12b is located at the bottom of the guide part 12a, and the diameter of the top end of the pressure part 12b is larger than the diameter of the guide part 12a.

[0028] In this embodiment, preferably, the spring 13 is sleeved on the outside of the guide portion 12a. The top end of the spring 13 abuts against the bottom of the clamping mold 5, and the bottom end abuts against the top of the pressing portion 12b. During pressing, the pressing rod 12 descends with the clamping mold 5 and abuts against the top of the outer shell. Subsequently, the pressing rod 12 is pushed upward by the outer shell and compresses the spring 13, pressing the top of the outer shell tightly under the elastic force of the spring 13. Since the pressing rod 12 can move up and down, each pressing rod 12 can adjust its lifting amplitude according to the different heights of the pressing parts during pressing, adapting to the outer shells of electronic communication products of different sizes and shapes.

[0029] The specific working principle of this utility model is as follows: The outer shell of the electronic communication product is placed on the lower clamping mold 4, and its opening side wall is clamped between the sealing gasket 9a and the sealing ring 9b to seal the opening and prevent water from entering; then the third cylinder 11 drives the upper clamping mold 5 to descend and close with the lower clamping mold 4. At the same time, the second cylinder 8 applies an upward force to the lower clamping mold 4 so that it can tightly clamp the outer shell with the upper clamping mold 5, and inserts the air pipe 10 into the air holes on both sides or front and back of the outer shell; then the first cylinder 7 drives the lifting seat 2 to descend, and the outer shell is inserted into the water in the detection water tank 6. Air is injected into the outer shell through the air pipe 10, and the presence of water bubbles is observed. If there are no water bubbles, the airtightness is good.

[0030] This document uses embodiments to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An airtightness testing device, characterized in that: The device includes a frame, a lifting base, a fixed base, a lower clamping mold, and an upper clamping mold. A detection water tank is located in the middle of the frame. The lifting base is vertically movable at the top of the frame, and first cylinders driving the lifting base to rise or fall are located on both sides of the frame. The fixed base is fixed below the lifting base via guide rods. The lower clamping mold is vertically movable at the top of the fixed base, and a second cylinder driving the lower clamping mold to rise or fall is located on the fixed base. A sealing element and an air pipe are also located at the top of the lower clamping mold, with the air pipes located on both sides of the sealing element. The upper clamping mold is vertically movable below the lifting base, and a third cylinder driving the upper clamping mold to rise or fall is located on the lifting base. Several sets of vertically movable pressure rods are distributed at the bottom of the upper clamping mold, and springs are sleeved between the pressure rods and the upper clamping mold.

2. The airtightness testing device according to claim 1, characterized in that: The fixed base and the clamping mold are both located above the testing water tank and can be lowered into the testing water tank during testing.

3. The airtightness testing device according to claim 1, characterized in that: The side walls of the testing tank are made of transparent tempered glass.

4. The airtightness testing device according to claim 1, characterized in that: The sealing element includes a sealing gasket and a sealing ring. The sealing ring is disposed around the outside of the sealing gasket, and the sealing gasket and the sealing ring are integrally fixed to the top of the clamping mold.

5. The airtightness testing device according to claim 1, characterized in that: The pressure bar includes a guide part and a pressure part. The guide part is vertically and flexibly mounted on the clamping mold via a linear bearing. The pressure part is located at the bottom of the guide part, and the diameter of the top of the pressure part is larger than the diameter of the guide part.

6. The airtightness testing device according to claim 5, characterized in that: The spring is sleeved on the outside of the guide portion, with the top end of the spring abutting against the bottom of the clamping mold and the bottom end abutting against the top of the pressing portion.

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