A sealing device for airtightness testing

Abstract

This utility model discloses a sealing device for airtightness testing, comprising: a frame assembly, a sealing assembly, and a fixing assembly; a floating seat is slidably mounted on the frame assembly, the floating seat is rotatably connected to the housing of a driving component, a floating rod is provided on the floating seat, the floating rod connects the floating seat and the housing of the driving component, and a floating gap is provided at the connection between the floating rod and the housing of the driving component; one end of a sliding rod is connected to a push plate, and the other end is connected to a second sealing plate; the housing of the driving component is slidably mounted on the sliding rod, the output end of the driving component is connected to the push plate, and a first sealing plate is provided on one side of the housing of the driving component. This utility model, by rotatably connecting the housing of the driving component to the floating seat and providing a floating gap at the connection between the floating rod and the housing of the driving component, allows the driving component to rotate slightly, ensuring that the first and second sealing plates effectively seal the die-casting part.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, and in particular to a sealing device for airtightness testing. Background Technology

[0002] Die castings are metal parts formed by injecting molten metal into a precision mold under high pressure and high speed, which then rapidly solidifies. After casting, die castings require airtightness testing. Because die castings have numerous sealing openings, are thin-walled, and have complex shapes, they are prone to deformation under stress, easily leading to damage and failure. Existing sealing fixtures suffer from unstable seals and short sealing ring lifespans. To prevent deformation of the die casting under stress, the sealing fixtures are difficult to adjust; even after initial adjustment, they often shift after a period of time, causing product deformation and failure, necessitating readjustment. Utility Model Content

[0003] According to an embodiment of the present invention, a sealing device for airtightness testing is provided, comprising: a frame assembly, a sealing assembly, and a fixing assembly; The fixing component is mounted on the frame assembly and is used to fix the die-cast part. The sealing assembly includes: a floating seat, a driving component, a first sealing plate, a push plate, a slide rod, and a second sealing plate; The floating seat is slidably mounted on the frame assembly. The floating seat is rotatably connected to the housing of the drive component. The floating seat is provided with a floating rod, which connects the floating seat and the housing of the drive component. There is a floating gap at the connection between the floating rod and the housing of the drive component. One end of the sliding rod is connected to a push plate, and the other end is connected to a second sealing plate. The housing of the drive component is slidably mounted on the sliding rod. The output end of the drive component is connected to the push plate. A first sealing plate is provided on one side of the housing of the drive component. The die-cast part is located between the first sealing plate and the second sealing plate.

[0004] Furthermore, the frame assembly includes: a base plate, a first fixing plate, a second fixing plate, and a guide rod; The first and second fixing plates are both mounted on the base plate. One end of the guide rod is connected to the first fixing plate and the other end is connected to the second fixing plate. The floating seat is slidably mounted on the guide rod.

[0005] Furthermore, the frame assembly also includes: a reset rod, a baffle, and a reset spring; One end of the reset rod is connected to the first fixed plate and the other end is connected to the baffle. The reset spring is sleeved on the reset rod and is located between the baffle and the floating seat.

[0006] Furthermore, the fixing assembly includes: a support rod and a support plate; The support rod is mounted on the base plate, and a support plate is provided on the top of the support rod. The top of the die-cast part is mounted on the support plate.

[0007] Furthermore, the fixing assembly also includes: a driving member, a driving plate, a fixing spring, and a pressure plate; The output end of the drive component is connected to the drive plate, and a fixing spring is connected to the lower part of the drive plate. One end of the fixing spring is connected to a pressure plate, which is used to fix the die-cast part on the support plate.

[0008] Furthermore, the fixing assembly also includes: a pressure head spring and a pressure head; One end of the pressure head spring is connected to the drive plate and the other end is connected to the pressure head. The pressure plate is provided with a sealing strip, and the sealing strip and the pressure head are set to the part of the die casting to be sealed.

[0009] Furthermore, the frame assembly includes: a first positioning rod and a insertion rod; The first positioning rod is mounted on the base plate, and the upper end of the first positioning rod is provided with a plug rod. The lower surface of the drive plate is provided with a second positioning rod, and the lower end of the second positioning rod is provided with a socket, which is set corresponding to the plug rod.

[0010] Furthermore, the frame assembly also includes: a support plate and a top head; Both the support plate and the top head are mounted on the base plate. The support plate is located below the die-cast part, and the top head is positioned corresponding to the part to be sealed at the lower end of the die-cast part.

[0011] Furthermore, the frame assembly also includes: a mounting plate, a sealing cylinder, and a sealing head; The mounting plate is fixed on the base plate, the sealing cylinder is mounted on the mounting plate, and the output end of the sealing cylinder is connected to the sealing head. The sealing head is used to seal the part of the die-casting part to be sealed.

[0012] Furthermore, both the first sealing plate and the second sealing plate are provided with sealing strips and sealing heads, which are provided corresponding to the parts of the die-casting part to be sealed.

[0013] According to an embodiment of the present invention, a sealing device for airtightness testing is provided. In this application, a fixing component is used to fix a die-casting part to a frame component. A driving component pushes a push plate to move, causing a second sealing plate to adhere to one side of the die-casting part. The driving component continues to push the push plate, causing the first sealing plate to move toward the die-casting part, so that the first sealing plate and the second sealing plate clamp the die-casting part. By rotatably connecting the housing of the driving component to the floating seat, and setting a floating gap at the connection between the floating rod and the housing of the driving component, the driving component can rotate slightly, ensuring that the first sealing plate and the second sealing plate effectively seal the die-casting part.

[0014] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a sealing device for airtightness testing according to an embodiment of the present invention; Figure 2 This is a front view of a sealing device for airtightness testing according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of a sealing device for airtightness testing according to an embodiment of the present invention; Figure 4 This is a partial structural diagram of a sealing device for airtightness testing according to an embodiment of the present invention; Figure 5 This is a partial front view of a sealing device for airtightness testing according to an embodiment of the present invention; Figure 6 This is a side sectional view of a sealing device for airtightness testing according to an embodiment of the present invention; Figure 7 This is a side sectional view of a sealing device for airtightness testing according to another embodiment of the present utility model; Figure 8 This is a structural diagram of a sealing component of a sealing device for airtightness testing according to an embodiment of the present invention; Figure 9 This is a front view of a sealing component of a sealing device for airtightness testing according to an embodiment of the present invention; Figure 10 This is a structural diagram of a fixing component of a sealing device for airtightness testing according to an embodiment of the present invention; Figure 11 This is a side view of a fixing component of a sealing device for airtightness testing according to an embodiment of the present invention.

[0016] In the attached diagram, the following labels are used: 1 is the frame assembly, 11 is the base plate, 12 is the first fixing plate, 13 is the second fixing plate, 14 is the guide rod, 15 is the reset rod, 16 is the baffle plate, 17 is the reset spring, 18 is the first positioning rod, 19 is the insertion rod, 2 is the sealing assembly, 21 is the floating seat, 22 is the driving component, 23 is the first sealing plate, 24 is the push plate, 25 is the slide rod, 26 is the second sealing plate, 3 is the fixing assembly, 31 is the support rod, 32 is the support plate, 33 is the driving plate, 34 is the fixing spring, 35 is the pressure plate, 36 is the pressure head spring, 37 is the pressure head, 38 is the second positioning rod, 4 is the die casting part, 5 is the bracket plate, 6 is the top head, 7 is the mounting plate, 8 is the sealing cylinder, and 9 is the sealing head. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0018] First, combine Figures 1-11 This invention describes a sealing device for airtightness testing, according to an embodiment of the present invention, used for sealing a die-cast part 4.

[0019] like Figures 1-11 As shown, an airtightness testing sealing device according to an embodiment of the present invention includes: a frame assembly 1, a sealing assembly 2, and a fixing assembly 3; The fixing component 3 is mounted on the frame component 1, and the fixing component 3 is used to fix the die-cast part 4. The sealing assembly 2 includes: a floating seat 21, a driving component 22, a first sealing plate 23, a push plate 24, a sliding rod 25, and a second sealing plate 26; The floating seat 21 is slidably mounted on the frame assembly 1. The floating seat 21 is rotatably connected to the outer shell of the drive component 22. The floating seat 21 is provided with a floating rod, which connects the floating seat 21 and the outer shell of the drive component 22. There is a floating gap at the connection between the floating rod and the outer shell of the drive component 22. One end of the sliding rod 25 is connected to the push plate 24, and the other end is connected to the second sealing plate 26. The outer shell of the drive component 22 is slidably mounted on the sliding rod 25. The output end of the drive component 22 is connected to the push plate 24. A first sealing plate 23 is provided on one side of the outer shell of the drive component 22. The die-cast part 4 is located between the first sealing plate 23 and the second sealing plate 26.

[0020] This application uses a fixing component 3 to fix the die-cast part 4 onto the frame component 1. The driving component 22 pushes the push plate 24 to move, so that the second sealing plate 26 is attached to one side of the die-cast part 4. The driving component 22 continues to push the push plate 24, which will cause the first sealing plate 23 to move toward the die-cast part 4, so that the first sealing plate 23 and the second sealing plate 26 clamp the die-cast part 4. By rotating the outer shell of the driving component 22 to the floating seat 21, and setting a floating gap at the connection between the floating rod and the outer shell of the driving component 22, the driving component 22 can rotate slightly, ensuring that the first sealing plate 23 and the second sealing plate 26 effectively seal the die-cast part 4.

[0021] The frame assembly 1 includes: a base plate 11, a first fixing plate 12, a second fixing plate 13, and a guide rod 14; The first fixing plate 12 and the second fixing plate 13 are both disposed on the base plate 11. One end of the guide rod 14 is connected to the first fixing plate 12 and the other end is connected to the second fixing plate 13. The floating seat 21 is slidably disposed on the guide rod 14.

[0022] The frame assembly 1 also includes: a reset rod 15, a baffle 16, and a reset spring 17; One end of the reset rod 15 is connected to the first fixed plate 12 and the other end is connected to the baffle 16. The reset spring 17 is sleeved on the reset rod 15 and is located between the baffle 16 and the floating seat 21.

[0023] In this embodiment, the guide rod 14 is fixed by the first fixing plate 12 and the second fixing plate 13. The angle of the guide rod 14 can be set to control the movement angle of the first sealing plate 23 and the second sealing plate 26. After the sealing assembly 2 seals the die-cast part 4, the first sealing plate 23 and the second sealing plate 26 are reset by the elastic force of the return spring 17.

[0024] The fixing component 3 includes: a support rod 31 and a support plate 32; The support rod 31 is mounted on the base plate 11, and the top of the support rod 31 is provided with a support plate 32. The top of the die-cast part 4 is mounted on the support plate 32.

[0025] The fixing component 3 also includes: a driving mechanism, a driving plate 33, a fixing spring 34, and a pressure plate 35; The output end of the drive mechanism is connected to the drive plate 33. A fixing spring 34 is connected to the lower part of the drive plate 33. One end of the fixing spring 34 is connected to the pressure plate 35. The pressure plate 35 is used to fix the die-cast part 4 on the support plate 32.

[0026] In this embodiment, the driving mechanism is a conventional driving device. The driving mechanism drives the driving plate 33 to move downward, causing the pressure plate 35 to fix the upper end of the die-cast part 4 onto the support plate 32, thereby fixing the die-cast part 4. The fixing spring 34 can prevent the pressure plate 35 from directly pressing down on the die-cast part 4 and causing damage to it.

[0027] The fixing component 3 also includes: a pressure head spring 36 and a pressure head 37; One end of the pressure head spring 36 is connected to the drive plate 33 and the other end is connected to the pressure head 37. The pressure plate 35 is provided with a sealing strip. The sealing strip and the pressure head 37 are provided for the parts of the die-casting 4 to be sealed.

[0028] In this embodiment, the upper end of the die-cast part 4 is sealed by the sealing strip on the pressure head 37 and the pressure plate 35.

[0029] The frame assembly 1 includes: a first positioning rod 18 and a insertion rod 19; The first positioning rod 18 is provided on the base plate 11. The upper end of the first positioning rod 18 is provided with a plug rod 19. The lower surface of the drive plate 33 is provided with a second positioning rod 38. The lower end of the second positioning rod 38 is provided with a socket, which is provided corresponding to the plug rod 19.

[0030] In this embodiment, as the driving member 22 drives the driving plate 33 to move downward, the second positioning rod 38 moves downward, causing the insertion rod 19 to be inserted into the insertion port at the lower end of the second positioning rod 38, which also limits the downward movement distance of the driving plate 33.

[0031] The frame assembly 1 also includes: a support plate 5 and a top head 6; Both the support plate 5 and the top head 6 are mounted on the base plate 11. The support plate 5 is located below the die-cast part 4, and the top head 6 is positioned corresponding to the part to be sealed at the lower end of the die-cast part 4.

[0032] The frame assembly 1 also includes: a mounting plate 7, a sealing cylinder 8, and a sealing head 9; The mounting plate 7 is fixed on the base plate 11, and the sealing cylinder 8 is mounted on the mounting plate 7. The output end of the sealing cylinder 8 is connected to the sealing head 9, and the sealing head 9 is used to set the part to be sealed corresponding to the die-casting part 4.

[0033] In this embodiment, the die-cast part 4 is supported from below by the bracket plate 5, the top head 6 seals the bottom of the die-cast part 4, and the sealing cylinder 8 drives the sealing head 9 to seal the lower part of the die-cast part 4.

[0034] Both the first sealing plate 23 and the second sealing plate 26 are provided with sealing strips and sealing heads, which are provided for the parts of the die-cast part 4 to be sealed.

[0035] In this embodiment, the two sides of the die-cast part 4 are sealed by sealing strips and sealing heads.

[0036] Above, refer to Figures 1-11 This invention describes a sealing device for airtightness testing according to an embodiment of the present invention. The die-cast part 4 is fixed to the frame assembly 1 by a fixing component 3. A driving component 22 pushes a push plate 24 to move, causing a second sealing plate 26 to adhere to one side of the die-cast part 4. The driving component 22 continues to push the push plate 24, causing a first sealing plate 23 to move towards the die-cast part 4, thus clamping the die-cast part 4 between the first sealing plate 23 and the second sealing plate 26. By rotatably connecting the outer shell of the driving component 22 to the floating seat 21, and setting a floating gap at the connection between the floating rod and the outer shell of the driving component 22, the driving component 22 can rotate slightly, ensuring that the first sealing plate 23 and the second sealing plate 26 effectively seal the die-cast part 4.

[0037] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A sealing device for airtightness testing, used for sealing die-cast parts, characterized in that, include: Frame components, sealing components, and fixing components; The fixing component is mounted on the frame assembly and is used to fix the die-cast part. The sealing assembly includes: a floating seat, a driving component, a first sealing plate, a push plate, a slide rod, and a second sealing plate; The floating seat is slidably mounted on the frame assembly. The floating seat is rotatably connected to the housing of the drive component. The floating seat is provided with a floating rod, which connects the floating seat and the housing of the drive component. There is a floating gap at the connection between the floating rod and the housing of the drive component. One end of the sliding rod is connected to a push plate, and the other end is connected to a second sealing plate. The housing of the drive component is slidably mounted on the sliding rod. The output end of the drive component is connected to the push plate. A first sealing plate is provided on one side of the housing of the drive component. The die-cast part is located between the first sealing plate and the second sealing plate.

2. The sealing device for airtightness testing as described in claim 1, characterized in that, The frame assembly includes: a base plate, a first fixing plate, a second fixing plate, and a guide rod; The first and second fixing plates are both mounted on the base plate. One end of the guide rod is connected to the first fixing plate and the other end is connected to the second fixing plate. The floating seat is slidably mounted on the guide rod.

3. The sealing device for airtightness testing as described in claim 2, characterized in that, The frame assembly also includes: a reset rod, a baffle, and a reset spring; One end of the reset rod is connected to the first fixed plate and the other end is connected to the baffle. The reset spring is sleeved on the reset rod and is located between the baffle and the floating seat.

4. The sealing device for airtightness testing as described in claim 2, characterized in that, The fixing assembly includes: a support rod and a support plate; The support rod is mounted on the base plate, and a support plate is provided on the top of the support rod. The top of the die-cast part is mounted on the support plate.

5. The sealing device for airtightness testing as described in claim 4, characterized in that, The fixing assembly also includes: a drive mechanism, a drive plate, a fixing spring, and a pressure plate; The output end of the drive mechanism is connected to the drive plate, and a fixing spring is connected to the lower part of the drive plate. One end of the fixing spring is connected to a pressure plate, which is used to fix the die-cast part to the support plate.

6. The sealing device for airtightness testing as described in claim 5, characterized in that, The fixing assembly also includes: a pressure head spring and a pressure head; One end of the pressure head spring is connected to the drive plate and the other end is connected to the pressure head. The pressure plate is provided with a sealing strip, and the sealing strip and the pressure head are set to the part of the die casting to be sealed.

7. The sealing device for airtightness testing as described in claim 5, characterized in that, The frame assembly includes: a first positioning rod and a insertion rod; The first positioning rod is mounted on the base plate, and the upper end of the first positioning rod is provided with a plug rod. The lower surface of the drive plate is provided with a second positioning rod, and the lower end of the second positioning rod is provided with a socket, which is set corresponding to the plug rod.

8. The sealing device for airtightness testing as described in claim 2, characterized in that, The frame assembly also includes: a support plate and a top; Both the support plate and the top head are mounted on the base plate. The support plate is located below the die-cast part, and the top head is positioned corresponding to the part to be sealed at the lower end of the die-cast part.

9. The sealing device for airtightness testing as described in claim 2, characterized in that, The frame assembly also includes: a mounting plate, a sealing cylinder, and a sealing head; The mounting plate is fixed on the base plate, the sealing cylinder is mounted on the mounting plate, and the output end of the sealing cylinder is connected to the sealing head. The sealing head is used to seal the part of the die-casting part to be sealed.

10. The sealing device for airtightness testing as described in claim 1, characterized in that, Both the first sealing plate and the second sealing plate are provided with sealing strips and sealing heads, which are set to the parts of the die-casting part to be sealed.

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