Testing machine capable of automatically rotating to test leakage
By designing an automatic rotary leak testing machine, which employs a support platform, cylinder, clamping components, and gear transmission system, the problem of existing testing machines being unable to meet high-precision rotary positioning requirements has been solved, thus achieving efficient workpiece inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-17
AI Technical Summary
Existing testing machines cannot meet the high-precision rotational positioning requirements when performing leak testing on workpieces, resulting in low testing efficiency and high missed detection rate, making it difficult to meet the testing requirements of enterprises.
An automatic rotary leak testing machine was designed, which uses a support platform, cylinder, clamping assembly, drive motor and gear transmission system to achieve high-precision rotational positioning and testing of workpieces.
It achieves high-precision rotational positioning, improves detection efficiency, reduces the false negative rate, and meets the detection requirements of enterprises.
Smart Images

Figure CN224004589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, and in particular to an automatic rotating leak testing machine. Background Technology
[0002] Leak testing is a crucial step in industrial manufacturing to ensure the sealing performance of products. It is widely used in the production of sealed containers such as automotive parts (e.g., cylinder blocks, fuel tanks), refrigeration equipment (compressors, condensers), and medical devices. Traditional manual testing is inefficient and highly subjective, while automated leak testing equipment has become an inevitable trend for industry upgrading. Currently, common leak testing equipment is mainly divided into fixed leak testing machines and semi-automatic rotary leak testing equipment.
[0003] Existing testing machines, when performing leak tests on workpieces, cannot meet the requirements for high-precision rotational positioning, resulting in low testing efficiency and a high rate of missed detections. Consequently, they are unable to meet the testing requirements of enterprises and have significant limitations. Therefore, there is an urgent need to design an automatic rotational leak testing machine to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide an automatic rotary leak testing machine to solve the problem that existing testing machines have low testing efficiency and high failure rate due to their inability to meet the high-precision rotation positioning requirements of workpieces, thus failing to meet the testing requirements of enterprises.
[0005] To solve the above-mentioned technical problems, this utility model provides an automatic rotary leak testing machine, including a support platform. The top of the support platform has a slot, and two first cylinders are installed at its bottom and a bearing plate is provided. Movable blocks are fixed on both sides of the bearing plate, and a groove is opened at its top. The two first cylinders are respectively located on both sides of the slot and their piston rods are respectively connected to the two movable blocks. A water tank is provided in the groove and two straight slots are opened on the bottom surface of the groove. A clamping assembly is also provided at the bottom of the bearing plate.
[0006] The support platform has two horizontally arranged second cylinders fixed at both ends of its top surface, and a first moving plate and a second moving plate are respectively provided. The piston rods of the two second cylinders are respectively connected to the first moving plate and the second moving plate. A first bearing and a second bearing are respectively fixed on the inner side of the first moving plate and the second moving plate. A first rotating rod and a second rotating rod are respectively connected to the side of the first bearing and the second rotating rod. A first clamping plate and a second clamping plate are respectively fixed at the other end of the first rotating rod and the first rotating rod. A first gear is also fixed on the side of the first rotating rod. A drive motor is installed on the outer side of the first moving plate. Its output end passes through the first moving plate and is connected to a rotating shaft. A second gear that meshes with the first gear is fixed at the other end of the rotating shaft.
[0007] Optionally, the clamping assembly includes two slide rods and a dual-head motor. The two slide rods are slidably connected to the two straight slots respectively, and a straight plate located in the groove is fixed at their top end. A screw tube is fixed at their bottom end. Two connecting rods are fixed inside the two straight plates, and a clamping block is fixed at the other end of the connecting rods.
[0008] The dual-head motor is fixed to the bottom of the support plate, and both of its output ends are connected to screws. The threads of the two screws are opposite to each other and are respectively threaded to the two helical tubes.
[0009] Optionally, a stop is fixed to the other end of the screw.
[0010] Optionally, the first clamping disk and the second clamping disk are located on the same axis.
[0011] Optionally, the water tank is located directly below the inlet.
[0012] Optionally, each of the four corners at the bottom of the support platform is fixed with a pillar.
[0013] In the automatic rotary leak testing machine provided by this utility model, the top of the support platform has a slot, and two first cylinders are installed at its bottom and a bearing plate is provided. Movable blocks are fixed on both sides of the bearing plate, and a groove is opened at its top. The two first cylinders are respectively located on both sides of the slot, and their piston rods are respectively connected to the two movable blocks. A water tank is provided in the groove, and two straight slots are opened on its inner bottom surface. A clamping assembly is also provided at the bottom of the bearing plate. Horizontally arranged second cylinders are fixed at both ends of the top surface of the support platform, and a first moving plate and a second moving plate are respectively provided. The first moving plate and the second moving plate contain… A first bearing and a second bearing are fixed to the sides of the first and second bearings, respectively. A first rotating rod and a second rotating rod are respectively connected to the sides of the first and second rotating rods. A first clamping plate and a second clamping plate are respectively fixed to the other ends of the first and second rotating rods, and a first gear is also fixed to the side of the first rotating rod. A drive motor is installed on the outside of the first moving plate, and its output end passes through the first moving plate and is connected to a rotating shaft. A second gear that meshes with the first gear is fixed to the other end of the rotating shaft. Using this testing machine, the high-precision rotational positioning requirements can be met, and the detection efficiency is high with a low false negative rate, thus meeting the testing requirements of enterprises. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the automatic rotary leak testing machine provided by this utility model;
[0015] Figure 2 This is a top view of the automatic rotary leak testing machine provided by this utility model;
[0016] Figure 3 yes Figure 2Sectional view of AA;
[0017] Figure 4 This is a bottom view of the automatic rotating leak testing machine provided by this utility model. Detailed Implementation
[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0021] This utility model provides an automatic rotary leak testing machine, the structure of which is as follows: Figures 1-4As shown, the support platform includes a support platform 1 with a slot 2 at its top. Two first cylinders 4 are mounted on its bottom, and a support plate 3 is provided. Movable blocks 5 are fixed to both sides of the support plate 3. A groove 6 is opened at its top. The two first cylinders 4 are located on either side of the slot 2, and their piston rods are connected to the two movable blocks 5 respectively. A water tank 9 is provided in the groove 6, and two straight slots 8 are opened on its inner bottom surface. A clamping assembly 7 is also provided at the bottom of the support plate 3. Two horizontally arranged second cylinders 12 are fixed to both ends of the top surface of the support platform 1, and a first moving plate 10 and a second moving plate 11 are respectively provided. The piston rods of the two second cylinders 12 are connected to the first moving plate 10 and the second moving plate 11 respectively. A first bearing 13 and a second bearing 14 are fixed to the inner sides of the first moving plate 10 and the second moving plate 11 respectively. A first rotating rod 15 and a second rotating rod 16 are connected to the sides of the first bearing 13 and the second bearing 14 respectively. The first clamping plate 17 and the second clamping plate 18 are respectively fixed to the other end of the rod 15 and the second rotating rod 16. The first gear 22 is also fixed to the side of the first rotating rod 15. A drive motor 19 is installed on the outside of the first moving plate 10. Its output end passes through the first moving plate 10 and is connected to the rotating shaft 20. The other end of the rotating shaft 20 is fixed with a second gear 21 that meshes with the first gear 22. The piston rods of the two second cylinders 12 drive the first clamping plate 17 and the second clamping plate 18 to move inward and clamp the workpiece. Then, the two first cylinders 4 drive the bearing plate 3 and the water tank 9 to move upward and pass through the slot 2, so that the first clamping plate 17, the second clamping plate 18 and the workpiece are partially submerged in water. Finally, the output end of the drive motor 19 drives the second gear 21 to mesh with the first gear 22, thereby driving the first clamping plate 17, the second clamping plate 18 and the workpiece to rotate for testing. The automatic rotary leak testing machine can meet the requirements of high-precision rotary positioning, and has high testing efficiency and low failure rate, thus meeting the testing requirements of enterprises.
[0022] Furthermore, the clamping assembly 7 includes two slide rods 71 and a dual-head motor 72. The two slide rods 71 are slidably connected to two straight slots 8 respectively, and a straight plate 73 located in the groove 6 is fixed at the top of each slide rod 71. A screw tube 77 is fixed at the bottom of each straight plate 73. Two connecting rods 74 are fixed inside each straight plate 73, and a clamping block 75 is fixed at the other end of each connecting rod 74. The dual-head motor 72 is fixed to the bottom of the support plate 3, and both output ends of the motor 72 are connected to screws 76. The two screws 76 are threaded to each other and threaded to the two screw tubes 77 respectively. The two output ends of the dual-head motor 72 drive the screws 76 to rotate, so that the two screw tubes 77 drive the straight plate 73 to move inward through the slide rods 71. At this time, several clamping blocks 75 cooperate with each other to clamp the water tank.
[0023] Furthermore, a stop 78 is fixed to the other end of the screw 76 to prevent the screw tube 77 and the screw 76 from becoming disconnected.
[0024] Furthermore, the first clamping plate 17 and the second clamping plate 18 are located on the same axis, which makes their clamping effect better.
[0025] Furthermore, the water tank 9 is located directly below the slot 2, ensuring that the water tank 9 can pass smoothly through the slot 2.
[0026] Furthermore, each of the four corners at the bottom of the support platform 1 is fixed with a support column 23 for support.
[0027] The working principle of this utility model is as follows: First, the two second cylinders 12 are started, and their piston rods drive the first clamping plate 17 and the second clamping plate 18 to move inward and clamp the workpiece. Then, the two first cylinders 4 are started, and their piston rods drive the bearing plate 3 and the water tank 9 to move upward and pass through the slot 2, so that the first clamping plate 17, the second clamping plate 18 and the workpiece are partially submerged in water. Finally, the drive motor 19 is started, and its output end drives the second gear 21 to mesh with the first gear 22, so that the first rotating rod 15 and the second rotating rod 16 drive the first clamping plate 17, the second clamping plate 18 and the workpiece to rotate for detection. The whole process has high detection efficiency and low false negative rate, thus meeting the detection requirements of enterprises.
[0028] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.
Claims
1. A test machine for automatic rotation leak hunting, comprising a support table (1), characterized in that, The support table (1) top end opening has a notch (2), its bottom end is equipped with two first air cylinders (4) and is provided with a bearing plate (3), the bearing plate (3) both sides are fixed with moving block (5), its top end opening has a groove (6), two first air cylinders (4) are located at both sides of the notch (2) and the piston rod is connected with two moving blocks (5) respectively, the groove (6) is provided with a water tank (9) and its inside bottom surface opening has two straight notches (8), the bearing plate (3) bottom end is further provided with clamping assembly (7). The support table (1) top surface both ends are fixed with horizontally arranged second air cylinder (12) and are respectively provided with first moving plate (10) and second moving plate (11), two second air cylinder (12) piston rod is connected with first moving plate (10) and second moving plate (11) respectively, first moving plate (10) and second moving plate (11) inner side are respectively fixed with first bearing (13) and second bearing (14), first bearing (13) and second bearing (14) side are respectively connected with first rotating rod (15) and second rotating rod (16), first rotating rod (15) and second rotating rod (16) the other end are respectively fixed with first clamping disc (17) and second clamping disc (18) and first rotating rod (15) side is further fixed with first gear (22), first moving plate (10) outside is equipped with driving motor (19), its output end passes through first moving plate (10) and is connected with rotating shaft (20), the other end of rotating shaft (20) is fixed with second gear (21) engaged with first gear (22).
2. The automatically rotating leak hunting test machine of claim 1, wherein, The clamping assembly (7) includes two slide rods (71) and double head motor (72), two slide rods (71) are respectively connected with two straight notches (8) and its top end is fixed with straight plate (73) in the groove (6), its bottom end is fixed with screw pipe (77), two straight plates (73) inner side are respectively fixed with two connecting rods (74), the other end of connecting rod (74) is fixed with clamping block (75). The double head motor (72) is fixed on the bottom end of the bearing plate (3), and both output ends are connected with screw rod (76), two screw rods (76) are threadedly opposite and are respectively connected with two screw pipes (77).
3. The automatically rotating leak hunting test machine of claim 2, wherein, The other end of the screw rod (76) is fixed with a stop block (78).
4. The automatically rotating leak hunting test machine of claim 1, wherein, The first clamping disc (17) and the second clamping disc (18) are located on the same axis.
5. The automatically rotating leak hunting test machine of claim 1, wherein, The water tank (9) is located directly below the notch (2).
6. The automatically rotating leak hunting test machine of claim 1, wherein, The support table (1) bottom end four corners are fixed with support column (23).