Quick changeover jig for air tightness testing apparatus

Abstract

The utility model discloses a quick change type anchor clamps of air tightness detection equipment belongs to air tightness detection equipment technical field, it includes work table, the rear side fixed mounting of work table top has the support frame, the top fixed mounting of support frame has the first air cylinder, the output of first air cylinder extends to the inner chamber of support frame and is fixedly connected with the connecting seat, the inner chamber rotationally connected with gear of connecting seat, the left and right sides of gear are provided with the gear plate of interlock, the gear plate of left and right sides is far from one side and is fixedly installed with the moving plate, the fixed mounting of clamping plate is installed in the bottom of moving plate, the left and right sides of work table top are all fixedly installed with the support plate. The utility model can adjust the position state of clamping block fast, has improved detection efficiency, can also dismantle and replace the plug, is convenient for adapting the through -hole of different size on work piece, has improved the use diversity of device.

Description

Technical Field

[0001] This utility model relates to the technical field of airtightness testing equipment, and in particular to a quick change fixture for airtightness testing equipment. Background Technology

[0002] In industrial production, many components require airtightness testing to ensure that they will not leak during use. Fixtures are a crucial component of airtightness testing equipment, used to hold the workpiece under test.

[0003] Existing airtightness testing equipment typically uses cylinders to press down the clamps and fix the workpiece. When the top of the workpiece is not flat, operators need to spend a lot of time and effort to adjust the position and state of the clamps, resulting in low testing efficiency. At the same time, traditional testing equipment is inconvenient to change the size of the plugs, and when the specifications of the through holes on the workpiece are not uniform, it is difficult to seal the through holes, reducing the practicality of the device. Therefore, we propose a quick-change clamp for airtightness testing equipment to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a quick-change fixture for an airtightness testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quick-change fixture for an airtightness testing device includes a worktable. A support frame is fixedly installed on the rear side of the top of the worktable. A first cylinder is fixedly installed on the top of the support frame. The output end of the first cylinder extends into the inner cavity of the support frame and is fixedly connected to a connecting seat. A gear is rotatably connected to the inner cavity of the connecting seat. Meshing toothed plates are provided on the left and right sides of the gear. A movable plate is fixedly installed on the side of the toothed plates on both sides of the left and right sides. A clamping plate is fixedly installed at the bottom of the movable plate. Support plates are fixedly installed on both the left and right sides of the top of the worktable. A second cylinder is fixedly installed on the side of the support plates on the side of the support plates that is far apart from each other. The output end of the second cylinder passes through the support plate and is fixedly connected to a connection port. A plug is provided on one side of the connection port, and a threaded sleeve is provided on the outer side of the connection port.

[0006] Preferably, a connecting plate is fixedly installed on the side of the movable plate on both the left and right sides that are far apart. A limit rod is fixedly installed on the top of the connecting plate. The top of the limit rod movably passes through the support frame. Pads adapted to the movable plate are fixedly installed on both the left and right sides of the top of the inner cavity of the support frame.

[0007] Preferably, one side of the plug extends into the interior of the threaded sleeve, the inner wall of the threaded sleeve is threadedly connected to the outer side of the plug and the outer side of the connection port, a plug rod is fixedly installed at the top and bottom of the connection port side, a sealing ring is provided between the plug and the connection port, and one side of the plug rod passes through the sealing ring and extends into the interior of the plug.

[0008] Preferably, a sealing gasket is fixedly installed on the top of the workbench, and a connecting pipe is fixedly connected to the bottom of the workbench.

[0009] Preferably, the bottom of the workbench is fixedly equipped with support legs, and the number of support legs is four sets, which are distributed in a rectangular array.

[0010] Preferably, a load plate is fixedly installed on the inner side of the support leg.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the first cylinder extends, causing the connecting seat to move downwards. The connecting seat then causes the gear to move downwards, which in turn causes the moving plate to move downwards via the gear plate. The moving plate then causes the clamping plate to move downwards to position the workpiece. When the top left side of the workpiece is higher than the right side, the left clamping plate is stationary, and the right clamping plate is not in contact with the workpiece. When the first cylinder continues to extend, it causes the gear to rotate, which in turn causes the right gear plate to move downwards, bringing the right clamping plate into contact with the workpiece. This completes the clamping and positioning of the workpiece, allowing for rapid adjustment of the clamping block's position and improving detection efficiency.

[0012] In this invention, by rotating the threaded sleeve forward to move it away from the plug, and then moving the plug to move the insertion rod on the connection port away from the plug, the plug can be disassembled and replaced, making it easy to adapt to through holes of different sizes on the workpiece and improving the versatility of the device. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a quick-change fixture for an airtightness testing device proposed in this utility model; Figure 2 This is a cross-sectional view of a quick-change fixture for an airtightness testing device proposed in this utility model. Figure 3 for Figure 2 A magnified view of part A in the middle; Figure 4 for Figure 2 A magnified view of part B in the middle section.

[0014] In the diagram: 1. Workbench; 2. Support frame; 3. First cylinder; 4. Second cylinder; 5. Connecting seat; 6. Gear; 7. Gear plate; 8. Moving plate; 9. Connecting plate; 10. Limiting rod; 11. Pad; 12. Clamping plate; 13. Support plate; 14. Connecting port; 15. Plug; 16. Threaded sleeve; 17. Sealing ring; 18. Insert rod; 19. Sealing gasket; 20. Connecting pipe; 21. Support leg; 22. Loading plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-4 A quick-change fixture for an airtightness testing device includes a workbench 1. A support frame 2 is fixedly installed on the rear side of the top of the workbench 1. A first cylinder 3 is fixedly installed on the top of the support frame 2. The output end of the first cylinder 3 extends into the inner cavity of the support frame 2 and is fixedly connected to a connecting seat 5. A gear 6 is rotatably connected to the inner cavity of the connecting seat 5. Gear plates 7 that mesh with each other are provided on the left and right sides of the gear 6. A movable plate 8 is fixedly installed on the side of the gear plates 7 that is far away from each other on both sides. A clamping plate 12 is fixedly installed at the bottom of the movable plate 8. Support plates 13 are fixedly installed on the left and right sides of the top of the workbench 1. A second cylinder 4 is fixedly installed on the side of the support plate 13 that is far away from each other. The output end of the second cylinder 4 passes through the support plate 13 and is fixedly connected to a connecting port 14. A plug 15 is provided on one side of the connecting port 14, and a threaded sleeve 16 is provided on the outside of the connecting port 14.

[0017] In this embodiment, connecting plates 9 are fixedly installed on the opposite sides of the movable plates 8 on both the left and right sides. A limiting rod 10 is fixedly installed on the top of the connecting plate 9. The top of the limiting rod 10 movably passes through the support frame 2. Pads 11 adapted to the movable plates 8 are fixedly installed on both the left and right sides of the top of the inner cavity of the support frame 2. One side of the plug 15 extends into the interior of the threaded sleeve 16. The inner wall of the threaded sleeve 16 is threadedly connected to the outer side of the plug 15 and the outer side of the connection port 14. Insert rods 18 are fixedly installed on the top and bottom of one side of the connection port 14. A sealing ring 17 is provided between the plug 15 and the connection port 14. One side of the insert rod 18 passes through the sealing ring 17 and extends into the interior of the plug 15. The pads 11 facilitate the repositioning of the movable plates 8 to the same level. The cooperation between the limiting rod 10, the connecting plate 9, and the support frame 2 can limit the movement of the movable plates 8, improving the stability of the up and down movement of the movable plates 8.

[0018] In this embodiment, a sealing gasket 19 is fixedly installed on the top of the workbench 1, and a connecting pipe 20 is fixedly connected to the bottom of the workbench 1. The bottom of the connecting pipe 20 is connected to an external airtightness testing device. Support legs 21 are fixedly installed on the bottom of the workbench 1. There are four sets of support legs 21, which are arranged in a rectangular array. A loading plate 22 is fixedly installed on the inner side of the support legs 21. Some commonly used workpieces can be placed on the loading plate 22 for easy access by workers. At the same time, the support legs 21 can also be fixed, which improves the working stability of the workbench 1.

[0019] In this embodiment, during use, the workpiece is placed on the sealing gasket 19. The first cylinder 3 is extended by the external controller. The extension of the first cylinder 3 drives the connecting seat 5 to move downward. The connecting seat 5 drives the gear 6 to move downward. The gear 6 drives the moving plate 8 to move downward through the toothed plate 7. The moving plate 8 drives the clamping plate 12 to move downward to position the workpiece. When the top left side of the workpiece is higher than the right side, the clamping plate 12 on the left side is stationary and the clamping plate 12 on the right side is not in contact with the workpiece. The first cylinder 3 continues to extend and drives the gear 6 to rotate. The gear 6 drives the toothed plate 7 on the right side to move downward, so that the clamping plate 12 on the right side contacts the workpiece, thus completing the clamping and positioning of the workpiece. By rotating the threaded sleeve 16 in the forward direction, the threaded sleeve 16 is moved away from the plug 15. Then, the plug 15 is moved so that the insertion rod 18 on the connecting port 14 is moved away from the plug 15. The plug 15 can be disassembled and replaced to adapt to through holes of different sizes on the workpiece. Then, it is connected to an external airtightness tester through the connecting pipe 20 to perform airtightness testing on the workpiece.

[0020] The above provides a detailed description of a quick-change fixture for an airtightness testing device provided by this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A quick-change fixture for an airtightness testing device, comprising a worktable (1), characterized in that: A support frame (2) is fixedly installed on the rear side of the top of the workbench (1). A first cylinder (3) is fixedly installed on the top of the support frame (2). The output end of the first cylinder (3) extends into the inner cavity of the support frame (2) and is fixedly connected to a connecting seat (5). A gear (6) is rotatably connected to the inner cavity of the connecting seat (5). Meshing toothed plates (7) are provided on the left and right sides of the gear (6). A moving plate (8) is fixedly installed on the side of the toothed plates (7) on the left and right sides. A clamping plate (12) is fixedly installed at the bottom of the moving plate (8). A support plate (13) is fixedly installed on the left and right sides of the top of the workbench (1). A second cylinder (4) is fixedly installed on the side of the support plate (13) on the side of the support plate (13) on the side away from the support plate. The output end of the second cylinder (4) passes through the support plate (13) and is fixedly connected to a connecting port (14). A plug (15) is provided on one side of the connecting port (14). A threaded sleeve (16) is provided on the outside of the connecting port (14).

2. The quick-change fixture for an airtightness testing device according to claim 1, characterized in that: A connecting plate (9) is fixedly installed on the side of the movable plate (8) on both the left and right sides that are far apart. A limit rod (10) is fixedly installed on the top of the connecting plate (9). The top of the limit rod (10) moves through the support frame (2). A pad (11) that is compatible with the movable plate (8) is fixedly installed on both the left and right sides of the top of the inner cavity of the support frame (2).

3. The quick-change fixture for an airtightness testing device according to claim 1, characterized in that: One side of the plug (15) extends into the interior of the threaded sleeve (16). The inner wall of the threaded sleeve (16) is threadedly connected to the outer side of the plug (15) and the outer side of the connection port (14). A plug rod (18) is fixedly installed at the top and bottom of one side of the connection port (14). A sealing ring (17) is provided between the plug (15) and the connection port (14). One side of the plug rod (18) passes through the sealing ring (17) and extends into the interior of the plug (15).

4. A quick-change fixture for an airtightness testing device according to claim 1, characterized in that: A sealing gasket (19) is fixedly installed on the top of the workbench (1), and a connecting pipe (20) is fixedly connected to the bottom of the workbench (1).

5. A quick-change fixture for an airtightness testing device according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly equipped with support legs (21), and the number of support legs (21) is four sets, which are distributed in a rectangular array.

6. A quick-change fixture for an airtightness testing device according to claim 5, characterized in that: A load plate (22) is fixedly installed on the inner side of the support leg (21).

Images