Air tightness detection device for hardware fittings

Abstract

The invention relates to the technical field of hardware fitting detection equipment, and particularly discloses an air tightness detection device for hardware fittings, which comprises a rack, a water tank, a pressing mechanism, a water supply mechanism and a pressurization mechanism, the water tank is arranged on the rack, the bottom of the water tank is provided with a detection groove for placing an aluminum piece, and when the aluminum piece is placed in the detection groove, the pressing mechanism is arranged on the detection groove. The side wall of the aluminum piece is tightly attached to the side wall of the detection groove, the pressing mechanism is arranged on the rack, located above the water tank and used for pressing the aluminum piece placed in the detection groove, and the water supply mechanism is arranged on the rack, located on one side of the water tank and used for supplying water into the water tank or discharging water in the water tank. Water in the water tank submerges the top of the detection tank, the pressurizing mechanism is arranged on the rack and located below the water tank, the pressurizing mechanism is communicated with the detection tank, and when the pressing mechanism presses the aluminum part placed in the detection tank, the pressurizing mechanism pressurizes the interior of the detection tank. The aluminum piece air tightness detection device has the effect of improving the air tightness detection efficiency of the aluminum piece.

Description

Technical Field

[0001] The present application relates to the technical field of hardware accessories testing equipment, and in particular to an air tightness testing device for hardware accessories. Background Art

[0002] Aluminum parts are a type of hardware accessories, and the air tightness of aluminum parts is one of the important testing items.

[0003] The air tightness test of existing aluminum parts generally adopts the following method: seal all openings of the aluminum parts, then inflate the gas tank through a pressure pump, connect the gas tank and the aluminum part, and turn off the inflation pump after the inflation is completed. At this time, the pressure in the gas tank and the aluminum part cavity is the same. A pressure gauge is set on the gas tank. If the aluminum part has no leakage, the pressure value of the pressure gauge will remain unchanged after a certain period of time. If the aluminum part has a leakage, the pressure value of the pressure gauge will drop after a certain period of time.

[0004] However, it takes a long time to observe whether the pressure value on the pressure gauge changes, and the airtightness of the aluminum parts cannot be quickly detected, thereby reducing the efficiency of the airtightness detection of the aluminum parts. This problem needs to be solved urgently. Summary of the invention

[0005] In order to improve the efficiency of air tightness testing of aluminum parts, the present application provides an air tightness testing device for hardware accessories.

[0006] The present application provides an air tightness detection device for hardware accessories, which adopts the following technical solution: An air tightness detection device for hardware accessories, comprising: frame; A water tank, the water tank is arranged on the frame, and a detection tank for placing the aluminum part is arranged at the bottom of the water tank, and when the aluminum part is placed in the detection tank, the side wall of the aluminum part is closely attached to the side wall of the detection tank; A clamping mechanism, which is disposed on the frame and located above the water tank and is used to clamp the aluminum part placed in the detection tank; A water supply mechanism, which is disposed on the frame and located at one side of the water tank and is used to supply water to the water tank or discharge water from the water tank. When the water supply mechanism supplies water to the water tank, the water in the water tank floods the top of the detection tank; A pressurizing mechanism is arranged on the frame and located below the water tank. The pressurizing mechanism is connected to the detection tank. When the clamping mechanism clamps the aluminum part placed in the detection tank, the pressurizing mechanism applies pressure to the detection tank.

[0007] By adopting the above technical scheme, the frame supports the water tank, the clamping mechanism, the water supply mechanism and the pressurizing mechanism. When the aluminum part needs to be tested for air tightness, the staff places the aluminum part in the test tank, and then the clamping mechanism presses the aluminum part in the test tank so that the side wall of the aluminum part is close to the side wall of the test tank. The water supply mechanism supplies water to the water tank, and the water in the water tank floods the top of the test tank to create a closed test environment. Then the pressurizing mechanism pressurizes the test tank. When no bubbles are generated in the water tank, the air tightness test of the aluminum part is good. When bubbles are generated in the water tank, the air tightness test of the aluminum part is defective. There is no need to wait and observe whether the pressure value of the pressure gauge changes in order to distinguish between good and defective aluminum parts as in the existing air tightness test method. It is quick and convenient, which is conducive to improving the efficiency of air tightness testing of aluminum parts.

[0008] Preferably, the clamping mechanism comprises a pressing block and a first driving member, the pressing block is located directly above the detection slot, and the first driving member is disposed on the frame to drive the pressing block to move vertically up and down.

[0009] By adopting the above technical solution, when the staff places the aluminum part in the inspection groove, the first driving member drives the pressure block to move vertically downward so that the pressure block presses the aluminum part tightly in the inspection groove. In the process of the subsequent pressurizing mechanism performing a pressurizing operation on the inspection groove, it is helpful to prevent the aluminum part from being rushed out of the inspection groove due to the increase in pressure in the inspection groove.

[0010] Preferably, the water supply mechanism includes a water storage cylinder, a piston plate and a second driving member, the water storage cylinder is fixedly connected to the outer wall of the water tank, and the water storage cylinder is communicated with the bottom of the water tank, water is stored in the water storage cylinder, the piston plate abuts and slides in the water storage cylinder, and the second driving member is arranged on one side of the water storage cylinder to drive the piston plate to reciprocate along the length direction of the water storage cylinder.

[0011] By adopting the above technical solution, after the pressure block presses the aluminum part into the detection groove, the second driving member drives the piston plate to move along the length direction of the water storage cylinder, and the piston plate pushes the water in the water storage cylinder into the water tank, and makes the water surface flowing into the water tank submerge the top of the detection groove, thereby creating a closed detection environment. When the airtightness detection operation of the aluminum part is completed, the second driving member drives the piston plate to move in the opposite direction, and the water in the water tank is sucked back into the water storage cylinder to facilitate the material replacement operation of the aluminum part.

[0012] Preferably, the pressurizing mechanism includes a pressurizing pipe and a compressor, the compressor is arranged at the bottom of the frame, one end of the pressurizing pipe is connected to the compressor, and the other end of the pressurizing pipe is connected to the detection tank.

[0013] By adopting the above technical scheme, when the pressing block presses the aluminum part tightly in the detection tank and the water in the water tank submerges the top of the detection tank, the compressor pressurizes the detection tank through the pressure pipe. If no bubbles are generated in the water tank, it indicates that the air tightness test of the aluminum part is good. If bubbles are generated in the water tank, it indicates that the air tightness test of the aluminum part is bad. Thus, the air tightness test of the aluminum part is realized intuitively and quickly.

[0014] Preferably, the pressurizing mechanism further includes a pressure gauge, and the pressure gauge is disposed in the water tank and communicated with the detection tank.

[0015] By adopting the above technical solution, the pressure gauge monitors and displays the pressure in the detection tank, thereby facilitating the staff to control the pressure in the detection tank.

[0016] Preferably, the pressurized pipe is provided with a first control switch for controlling its opening and closing.

[0017] By adopting the above technical solution, the first control switch controls the opening and closing of the pressurizing tube, thereby realizing the pressurizing operation in the control detection tank.

[0018] Preferably, it further comprises a pressure relief member for relieving pressure on the detection tank, wherein the pressure relief member is disposed on the frame and communicated with the detection tank.

[0019] By adopting the above technical scheme, when the air tightness test operation of the aluminum part is completed, the pressure relief part releases the pressure on the test groove, which is beneficial to prevent the aluminum part from being lifted up by the high pressure in the test groove when the pressure block releases the pressure on the aluminum part, thereby helping to improve the safety of the aluminum part during air tightness testing.

[0020] Preferably, the pressure relief component is configured as a pressure relief pipe, the pressure relief pipe is connected to the detection tank, and the pressure relief pipe is provided with a second control switch for controlling the opening and closing of the pressure relief pipe.

[0021] By adopting the above technical solution, the second control switch controls the opening and closing of the pressure relief pipe. When the pressurization operation is performed, the second control switch closes the pressure relief pipe. When the air tightness detection operation of the aluminum part is completed, the second control switch opens the pressure relief pipe to relieve the pressure in the detection tank.

[0022] Preferably, a fixing buckle for fixing the pressure relief pipe is provided on the frame.

[0023] By adopting the above technical solution, the fixing buckle fixes the pressure relief pipe, which helps to prevent the pressure relief pipe from swinging during the pressure relief process.

[0024] Preferably, a buffer block is fixedly provided on the end of the pressing block facing the detection slot.

[0025] By adopting the above technical solution, when the pressing block presses the aluminum part, the buffer block protects the aluminum part, which is helpful to prevent the impact force of the pressing block from hitting the aluminum part and causing damage.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting a water tank, a clamping mechanism, a water supply mechanism and a pressurizing mechanism, when it is necessary to conduct an airtightness test on the aluminum parts, the staff will place the aluminum parts in the test tank, and then the clamping mechanism will press the aluminum parts in the test tank so that the side walls of the aluminum parts are close to the side walls of the test tank. The water supply mechanism supplies water into the water tank, and the water in the water tank floods the top of the test tank to create a closed test environment. Then the pressurizing mechanism will pressurize the test tank. When no bubbles are generated in the water tank, the airtightness test of the aluminum parts is good. When bubbles are generated in the water tank, the airtightness test of the aluminum parts is bad. There is no need to wait and observe whether the pressure value of the pressure gauge changes in order to distinguish good and bad aluminum parts as in the existing airtightness test method. It is quick and convenient, which is conducive to improving the efficiency of retrograde testing of aluminum parts.

[0027] 2. By setting up a water storage cylinder, a piston and a second driving member, when the pressure block presses the aluminum part into the detection tank, the second driving member drives the piston to move along the length direction of the water storage cylinder, and the piston pushes the water in the water storage cylinder into the water tank, and makes the water surface flowing into the water tank submerge the top of the detection tank, thereby creating a closed detection environment. When the airtightness test operation of the aluminum part is completed, the second driving member drives the piston to move in the opposite direction, and the water in the water tank is sucked back into the water storage cylinder to facilitate the material replacement operation of the aluminum part.

[0028] 3. By setting up a pressure pipe and a compressor, when the pressure block presses the aluminum part tightly in the detection tank and the water in the water tank submerges the top of the detection tank, the compressor pressurizes the detection tank through the pressure pipe. If no bubbles are generated in the water tank, it indicates that the air tightness test of the aluminum part is good. If bubbles are generated in the water tank, it indicates that the air tightness test of the aluminum part is bad. This realizes the air tightness test of the aluminum part, which is intuitive and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the airtightness detection device in the embodiment of the present application.

[0030] Figure 2 It is a cross-sectional view of the water supply mechanism in the embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the connection structure between the water supply mechanism, the pressurizing mechanism, the pressure relief member and the water tank in the embodiment of the present application.

[0032] Description of reference numerals: 1. Frame; 2. Water tank; 3. Detection tank; 4. Clamping mechanism; 41. Pressing block; 42. First driving cylinder; 5. Water supply mechanism; 51. Water storage cylinder; 52. Piston plate; 53. Second driving cylinder; 6. Pressurizing mechanism; 61. Pressurizing pipe; 62. Compressor; 63. Pressure gauge; 7. First control switch; 8. Pressure relief pipe; 9. Second control switch; 10. Fixing buckle; 11. Buffer block. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-3 This application is described in further detail.

[0034] The embodiment of the present application discloses an air tightness detection device for hardware accessories, which is used to detect the air tightness of aluminum parts. The aluminum parts are arranged in a cylindrical shape. Figure 1 The air tightness detection device includes a frame 1, a water tank 2, a clamping mechanism 4, a water supply mechanism 5 and a pressurizing mechanism 6, and the water tank 2, the clamping mechanism 4, the water supply mechanism 5 and the pressurizing mechanism 6 are all arranged on the frame 1. A detection groove 3 for vertically placing an aluminum part is fixedly arranged at the bottom of the water tank 2. The cross section of the detection groove 3 is arranged in a circular ring shape. When the aluminum part is vertically placed in the detection groove 3, the side wall of the aluminum part is close to the side wall of the detection groove 3. The clamping mechanism 4 is located above the water tank 2 and is used to clamp the aluminum part placed in the detection groove 3 to improve the stability of the aluminum part during the air tightness detection process. The water supply mechanism 5 is located at one side of the water tank 2 and is used to supply water to the water tank 2 or discharge the water in the water tank 2. When the water supply mechanism 5 supplies water to the water tank 2, the water in the water tank 2 floods the top of the detection tank 3 to form a closed detection environment for the detection tank 3. After the air tightness detection process of the aluminum part is completed, the water supply mechanism 5 discharges the water in the water tank 2 to facilitate the staff to perform the air tightness detection operation of the next aluminum part when the aluminum part is replaced. The pressurizing mechanism 6 is located below the water tank 2 and is connected to the detection tank 3. When the pressing mechanism 4 presses the aluminum part placed in the detection tank 3 and the water in the water tank 2 floods the top of the detection tank 3, the pressurizing mechanism 6 pressurizes the detection tank 3 and then observes whether the water in the water tank 2 generates bubbles. If no bubbles are generated, it indicates that the aluminum part is a good product with good air tightness. If bubbles are generated, it indicates that the aluminum part is a defective product with poor air tightness.

[0035] Reference Figure 1The clamping mechanism 4 includes a clamping block 41 and a first driving member. The clamping block 41 is located directly above the detection slot 3. The first driving member is arranged on the frame 1 to drive the clamping block 41 to move vertically up and down. In this embodiment, the first driving member is set as a first driving cylinder 42. The first driving cylinder 42 is vertically fixedly arranged on the top of the frame 1, and the piston rod of the first driving cylinder 42 is vertically arranged downward. The clamping block 41 is fixedly connected to the end of the piston rod of the first driving cylinder 42. When the staff places the aluminum part in the detection slot 3, the piston rod of the first driving cylinder 42 is stretched to drive the clamping block 41 to move vertically downward. The clamping block 41 presses the aluminum part in the detection slot 3 to improve the stability of the aluminum part during air tightness testing. It is worth mentioning that a buffer block 11 is fixedly arranged at the end of the clamping block 41 facing the detection slot 3 to protect the aluminum part. In this embodiment, the buffer block 11 is selected as a silicone block.

[0036] Reference Figure 1 and Figure 2 The water supply mechanism 5 includes a water storage cylinder 51, a piston plate 52 and a second driving member. The water storage cylinder 51 is horizontally fixedly connected to the outer wall of the water tank 2, and the water storage cylinder 51 is connected to the bottom of the water tank 2. Water is stored in the water storage cylinder 51. The side wall of the piston plate 52 abuts and slides in the water storage cylinder 51. The second driving member is arranged on one side of the water storage cylinder 51 to drive the piston plate 52 to reciprocate along the length direction of the water storage cylinder 51. In this embodiment, the second driving member is configured as a second driving cylinder 53, and the piston plate 52 is fixedly connected to the piston rod of the second driving cylinder 53. The piston rod of the second driving cylinder 53 is stretched to drive the piston plate 52 to move toward the direction close to the water tank 2, and the piston plate 52 pushes the water in the water storage cylinder 51 into the water tank 2 so that the water in the water tank 2 submerges the top of the detection tank 3. The piston rod of the second driving cylinder 53 contracts to drive the piston plate 52 to move away from the water tank 2, and the water in the water tank 2 is re-sucked into the water storage cylinder 51 for storage, so as to facilitate the material replacement operation of the aluminum parts.

[0037] Reference Figure 1 and Figure 3The pressurizing mechanism 6 includes a pressurizing tube 61 and a compressor 62. The compressor 62 is arranged at the bottom of the frame 1. One end of the pressurizing tube 61 is connected to the compressor 62, and the other end of the pressurizing tube 61 penetrates into the water tank 2 and is connected to the detection tank 3. At the same time, the pressurizing tube 61 is provided with a first control switch 7 for controlling its opening and closing. When the pressing block 41 presses the aluminum part into the detection tank 3, and the water in the water tank 2 submerges the top of the detection tank 3, the first control switch 7 opens the pressurizing tube 61, and the compressor 62 pressurizes the detection tank 3 through the pressurizing tube 61. If no bubbles are generated in the water tank 2, it indicates that the air tightness test of the aluminum part is good. If bubbles are generated in the water tank 2, it indicates that the air tightness test of the aluminum part is defective, thereby completing the air tightness test of the aluminum part. In addition, the pressurizing mechanism 6 also includes a pressure gauge 63, which is vertically fixed in the water tank 2 and connected to the inside of the detection tank 3 to monitor the pressure in the detection tank 3, so that the pressure of the airtightness test can be controlled according to the pressure value of the pressure gauge 63.

[0038] Reference Figure 1 and Figure 3 , when the air tightness test of the aluminum part is completed, the pressure in the test slot 3 is greater than the external pressure. After the first driving cylinder 42 drives the pressure block 41 away from the aluminum part, the pressure difference will cause the aluminum part to rush upward from the test slot 3, and the safety performance is poor. Therefore, the air tightness test device also includes a pressure relief member for performing pressure relief operation on the test slot 3. The pressure relief member is arranged on the frame 1 and is connected to the test slot 3. After the pressure relief operation of the pressure relief member is completed, the pressure block 41 is moved away from the aluminum part to improve safety. In this embodiment, the pressure relief member is set as a pressure relief pipe 8, and the pressure relief pipe 8 is connected to the test slot 3. At the same time, the pressure relief pipe 8 is provided with a second control switch 9 for controlling its opening and closing. When the air tightness test operation of the aluminum part is completed, the second control switch 9 opens the pressure relief pipe 8, and the pressure relief pipe 8 relieves the pressure on the test slot 3 to make the pressure in the test slot 3 consistent with the external pressure.

[0039] Reference Figure 3 During the pressure relief process, the free end of the pressure relief pipe 8 will move around due to the discharge of gas. Therefore, a fixing buckle 10 for fixing the pressure relief pipe 8 is provided on the frame 1. The fixing buckle 10 fixes the pressure relief pipe 8 on the frame 1 to prevent the pressure relief pipe 8 from moving around and swinging during the pressure relief process.

[0040] The implementation principle of the air tightness detection device for hardware accessories in the embodiment of the present application is as follows: when it is necessary to perform air tightness detection on the aluminum part, the staff will place the aluminum part in the detection groove 3, the piston rod of the first driving cylinder 42 will be stretched to drive the pressing block 41 to move vertically downward, and the pressing block 41 will press the aluminum part tightly in the detection groove 3 to improve the stability of the aluminum part during air tightness detection, and then the piston rod of the second driving cylinder 53 will be stretched to drive the piston plate 52 to move toward the direction close to the water tank 2, and the water in the water storage cylinder 51 will be pushed into the water tank 2, and the water in the water tank 2 will be flooded. There is no detection tank 3 at the top to create a closed environment for the air-tightness test of the aluminum part. Then the staff opens the first control switch 7 and closes the second control switch 9. The compressor 62 pressurizes the detection tank 3 through the pressure pipe 61. The pressure in the detection tank 3 is displayed by the pressure gauge 63, which facilitates the control of the pressure in the detection tank 3. If no bubbles are generated in the water tank 2, it indicates that the air-tightness test of the aluminum part is good. If bubbles are generated in the water tank 2, it indicates that the air-tightness test of the aluminum part is defective, thereby realizing the air-tightness test of the aluminum part, which is intuitive and quick. When it is necessary to perform an airtightness test on the next aluminum part, the staff turns on the second control switch 9 and closes the first control switch 7. The pressure relief pipe 8 performs a pressure relief operation on the detection tank 3. Then, the piston rod of the first drive cylinder 42 contracts to drive the pressure block 41 to move vertically upward, and the pressure block 41 moves away from the aluminum part that has been tested. Then, the piston rod of the second drive cylinder 53 contracts to drive the piston plate 52 to move away from the water tank 2. The water in the water tank 2 is re-sucked into the water storage cylinder 51 for storage. At this time, the staff can perform the material replacement operation of the aluminum part. During the airtightness test of the aluminum part, the good and bad aluminum parts can be judged by observing the presence or absence of bubbles. This is convenient and quick, and is conducive to improving the efficiency of airtightness testing of aluminum parts.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An air tightness detection device for hardware accessories, characterized in that: include: Rack (1); A water tank (2), the water tank (2) being arranged on the frame (1), and a detection tank (3) for placing the aluminum part is arranged at the bottom of the water tank (2), and when the aluminum part is placed in the detection tank (3), the side wall of the aluminum part is closely attached to the side wall of the detection tank (3); A clamping mechanism (4), the clamping mechanism (4) being arranged on the frame (1) and located above the water tank (2) and used for clamping the aluminum part placed in the detection tank (3); a water supply mechanism (5), the water supply mechanism (5) being arranged on the frame (1) and located at one side of the water tank (2) and being used for supplying water into the water tank (2) or discharging water from the water tank (2); when the water supply mechanism (5) supplies water into the water tank (2), the water in the water tank (2) submerges the top of the detection tank (3); A pressurizing mechanism (6), the pressurizing mechanism (6) is arranged on the frame (1) and is located below the water tank (2), the pressurizing mechanism (6) is connected to the detection tank (3), and when the pressing mechanism (4) presses the aluminum part placed in the detection tank (3), the pressurizing mechanism (6) applies pressure to the detection tank (3).

2. The air tightness detection device for hardware accessories according to claim 1, characterized in that: The clamping mechanism (4) comprises a pressing block (41) and a first driving member, wherein the pressing block (41) is located directly above the detection slot (3), and the first driving member is arranged on the frame (1) and is used to drive the pressing block (41) to move vertically up and down.

3. The air tightness detection device for hardware accessories according to claim 1, characterized in that: The water supply mechanism (5) comprises a water storage cylinder (51), a piston plate (52) and a second driving member. The water storage cylinder (51) is fixedly connected to the outer wall of the water tank (2), and the water storage cylinder (51) is communicated with the bottom of the water tank (2). Water is stored in the water storage cylinder (51). The piston plate (52) abuts and slides in the water storage cylinder (51). The second driving member is arranged on one side of the water storage cylinder (51) and is used to drive the piston plate (52) to reciprocate along the length direction of the water storage cylinder (51).

4. The air tightness detection device for hardware accessories according to claim 1, characterized in that: The pressurizing mechanism (6) comprises a pressurizing pipe (61) and a compressor (62), wherein the compressor (62) is arranged at the bottom of the frame (1), one end of the pressurizing pipe (61) is connected to the compressor (62), and the other end of the pressurizing pipe (61) is connected to the detection tank (3).

5. The air tightness detection device for hardware accessories according to claim 1, characterized in that: The pressurizing mechanism (6) further comprises a pressure gauge (63), wherein the pressure gauge (63) is arranged in the water tank (2) and is connected to the detection tank (3).

6. The air tightness detection device for hardware accessories according to claim 4, characterized in that: The pressurized pipe (61) is provided with a first control switch (7) for controlling its opening and closing.

7. The air tightness detection device for hardware accessories according to claim 1, characterized in that: It also comprises a pressure relief component for performing a pressure relief operation on the detection slot (3); the pressure relief component is arranged on the frame (1) and is in communication with the detection slot (3).

8. The air tightness detection device for hardware accessories according to claim 7, characterized in that: The pressure relief component is configured as a pressure relief pipe (8), the pressure relief pipe (8) is connected to the detection tank (3), and the pressure relief pipe (8) is provided with a second control switch (9) for controlling its opening and closing.

9. The air tightness detection device for hardware accessories according to claim 8, characterized in that: The frame (1) is provided with a fixing buckle (10) for fixing the pressure relief pipe (8).

10. The air tightness detection device for hardware accessories according to claim 2, characterized in that: A buffer block (11) is fixedly arranged on the end of the pressing block (41) facing the detection slot (3).

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