Air tightness equipment capable of detecting multiple products and comparing numerical values

Abstract

The utility model discloses air tightness equipment capable of detecting multiple products and comparing numerical values, which belongs to the technical field of air tightness detection, and comprises a frame body and two groups of air tightness detection mechanisms, the two groups of air tightness detection mechanisms are symmetrically distributed left and right and are connected with the frame body, and each air tightness detection mechanism comprises a pressure testing mechanism and a positioning and clamping mechanism. The positioning and clamping mechanism is connected with the pressure testing mechanism, the pressure testing mechanism is connected with the frame body, the positioning and clamping mechanism comprises an x-axis moving assembly, a y-axis moving assembly, a positioning and clamping assembly and a positioning and clamping push cylinder, the output end of the positioning and clamping push cylinder is connected with the x-axis moving assembly, the x-axis moving assembly is connected with the y-axis moving assembly, and the x-axis moving assembly is connected with the y-axis moving assembly. The y-axis moving assembly is connected with the multiple sets of positioning and clamping assemblies, the x-axis moving assembly is connected with the x-axis moving assembly, and shells of the y-axis moving assembly, the positioning and clamping assemblies and the positioning and clamping push cylinders are all connected with the pressure testing mechanism. Through the above mode, the airtightness of multiple groups of products to be detected can be detected at a time, and double-station circulation detection is carried out at the same time.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, specifically to an airtightness device for testing multiple products and enabling numerical comparison. Background Technology

[0002] Air tightness testing is a method used to check whether there is a gas leak in containers, pipes or equipment, and it is widely used in various fields.

[0003] Traditional airtightness testing can only test one product at a time. A person has to manually place the product into the equipment, press the start button, and test the product individually. This requires manual handling and waiting time. Furthermore, there is no comparison between individual products, which increases manpower, time costs, and results in poor comparability of test values.

[0004] Based on this, the present invention designs an airtightness device for testing multiple products and enabling numerical comparison to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an airtightness device for testing multiple products and comparing their values.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An airtightness testing device for testing multiple products and enabling numerical comparison includes a frame and an airtightness testing mechanism. Two sets of symmetrically distributed airtightness testing mechanisms for multi-station testing are connected to the frame. Each airtightness testing mechanism includes a pressure testing mechanism and a positioning and clamping mechanism. The positioning and clamping mechanism for clamping a tubular workpiece is connected to the pressure testing mechanism. The pressure testing mechanism for detecting the internal pressure change of the tubular workpiece after inflation is connected to the frame. The positioning and clamping mechanism includes an x-axis moving component, a y-axis moving component, a positioning and clamping component, and a positioning and clamping push cylinder. The output end of the positioning and clamping push cylinder is connected to the x-axis moving component. The x-axis moving component is connected to the y-axis moving component. The y-axis moving component is connected to multiple sets of positioning and clamping components. The housings of the x-axis moving component, the y-axis moving component, the positioning and clamping component, and the positioning and clamping push cylinder are all connected to the pressure testing mechanism.

[0008] Furthermore, the pressure testing mechanism includes a pressing component and an inflation pressure testing component. The pressing component is connected to the frame, the inflation pressure testing component is connected to the pressing component, and the housing of the positioning clamping push cylinder is connected to the pressing component.

[0009] Furthermore, the pressure-down assembly includes a base, a top plate, support rods, a movable plate, and a pressure testing cylinder. The lower end of the base is fixedly connected to the frame, the upper end of the base is connected to the x-axis movable assembly, the upper end of the base is fixedly connected to the housing of the positioning and clamping cylinder, the upper ends of the four sets of support rods are fixedly connected to the top plate, the lower ends of the four sets of support rods are fixedly connected to the base, the movable plate is slidably connected to the support rods, the upper ends of the housings of the two sets of symmetrically distributed pressure testing cylinders are fixedly connected to the lower end of the top plate, the output end of the pressure testing cylinder is fixedly connected to the movable plate, and the movable plate is connected to the inflation and pressure testing assembly.

[0010] Furthermore, the inflation pressure testing component includes an inflation port and an inflation connector. Multiple sets of inflation connectors are fixedly connected to the upper end of the movable plate. The upper end of the inflation connector is connected to the air pump through a pipe. The upper ends of multiple sets of inflation ports are fixedly connected to the air outlets of the inflation connectors, and the inflation ports and inflation connectors are connected. The pressure sensor is fixedly connected to the inflation port and is electrically connected to the external system.

[0011] Furthermore, the number of sets of positioning clamping components, air inlet connectors and air inlets are the same and correspond one-to-one. The number of sets of the three determines the number of tubular workpieces that a single air tightness testing mechanism can test for air tightness at the same time.

[0012] Furthermore, the x-axis moving assembly includes an x-axis moving slide rail and an x-axis moving block. Two sets of x-axis moving slide rails, symmetrically distributed on the left and right, are fixedly connected to the base. The x-axis moving block is slidably connected to the x-axis moving slide rail via a slider. The right end of the x-axis moving block is fixedly connected to the output end of the positioning clamping push cylinder.

[0013] Furthermore, the y-axis moving component includes limiting sliding columns, y-axis moving slide rails, and y-axis moving blocks. Two sets of symmetrically distributed y-axis moving slide rails are fixedly connected to the upper end of the base. Each set of y-axis moving slide rails consists of two symmetrically distributed slide rails. The two sets of symmetrically distributed y-axis moving blocks are slidably connected to the y-axis moving slide rails via sliders. Four sets of limiting sliding columns are fixedly connected to the lower left and right ends of the two sets of y-axis moving blocks. The x-axis moving blocks are provided with four sets of limiting inclined grooves that are slidably connected to the four sets of limiting sliding columns. The limiting inclined grooves are used to bring the two sets of y-axis moving blocks closer to each other while the two sets of y-axis moving blocks move to the right. The y-axis moving blocks are connected to the positioning and clamping component.

[0014] Furthermore, the positioning and clamping assembly includes a clamping and positioning block and a workpiece placement tube. The lower end of the workpiece placement tube is fixedly connected to the frame so that the opening of the workpiece placement tube is closed. The x-axis moving block is provided with a hole to avoid the workpiece placement tube. Two sets of clamping and positioning blocks are symmetrically distributed front and back and fixedly connected to two sets of y-axis moving blocks respectively. The clamping and positioning blocks are used to clamp the tubular workpiece inward.

[0015] Compared with the prior art, the advantages of this utility model are: 1. It can detect the air tightness of multiple tubular workpieces at one time, and the numerical values ​​of multiple tubular workpieces are displayed, allowing for numerical comparison.

[0016] 2. Set up dual-station alternating inspection. When the airtightness test is performed at the first station, the workpiece to be tested is placed at the second station. The operation is repeated, which reduces time costs and manpower, and allows the machine and manpower to work continuously. At the same time, the test values ​​can be visualized and compared.

[0017] 3. A single driver can be used to simultaneously clamp multiple workpieces, improving the stability of airtightness testing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of an airtightness device of the present invention that can detect multiple products and compare numerical values.

[0020] Figure 2 This is a front view of an airtightness device according to the present invention, which can detect multiple products and compare numerical values.

[0021] Figure 3 This is a structural schematic diagram of part of the present invention;

[0022] Figure 4 This is a cross-sectional perspective view of the positioning and clamping mechanism of this utility model;

[0023] Figure 5 This is a partial structural diagram of the positioning and clamping mechanism of this utility model.

[0024] The labels in the diagram represent:

[0025] 1. Frame; 2. Pressure testing mechanism; 21. Base; 22. Top plate; 23. Support rod; 24. Moving plate; 25. Pressure testing push cylinder; 26. Inflation port; 27. Inflation connector; 3. Positioning and clamping mechanism; 31. X-axis moving slide rail; 32. X-axis moving block; 33. Limiting inclined groove; 34. Limiting sliding column; 35. Y-axis moving slide rail; 36. Y-axis moving block; 37. Clamping and positioning block; 38. Workpiece placement tube; 39. Positioning and clamping push cylinder. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0028] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-4 An airtightness testing device for detecting multiple products and enabling numerical comparison includes a frame 1 and an airtightness testing mechanism. Two sets of airtightness testing mechanisms are symmetrically distributed on the left and right sides for dual-station testing of tubular workpieces. The positions of the two sets of airtightness testing mechanisms are defined as the first station and the second station, respectively. The airtightness testing mechanism is connected to the frame 1.

[0029] The airtightness testing mechanism includes a pressure testing mechanism 2 and a positioning and clamping mechanism 3. The positioning and clamping mechanism 3, which is used to clamp the tubular workpiece, is connected to the pressure testing mechanism 2. The pressure testing mechanism 2, which is used to detect the pressure change inside the tubular workpiece after inflation, is connected to the frame 1.

[0030] The positioning and clamping mechanism 3 includes an x-axis moving component, a y-axis moving component, a positioning and clamping component, and a positioning and clamping push cylinder 39. The output end of the positioning and clamping push cylinder 39 is connected to the x-axis moving component, the x-axis moving component is connected to the y-axis moving component, the y-axis moving component is connected to multiple sets of positioning and clamping components, and the housings of the x-axis moving component, the y-axis moving component, the positioning and clamping component, and the positioning and clamping push cylinder 39 are all connected to the pressure testing mechanism 2.

[0031] The pressure testing mechanism 2 includes a pressing component and an inflation pressure testing component. The pressing component is connected to the frame 1, the inflation pressure testing component is connected to the pressing component, and the housing of the positioning clamping push cylinder 39 is connected to the pressing component.

[0032] The pressure-down assembly includes a base 21, a top plate 22, support rods 23, a movable plate 24, and a pressure testing push cylinder 25. The lower end of the base 21 is fixedly connected to the frame 1, the upper end of the base 21 is connected to the x-axis movable assembly, and the upper end of the base 21 is fixedly connected to the housing of the positioning and clamping push cylinder 39. The upper ends of the four sets of support rods 23 are fixedly connected to the top plate 22, and the lower ends of the four sets of support rods 23 are fixedly connected to the base 21. The movable plate 24 is slidably connected to the support rods 23. The upper ends of the housings of the two sets of symmetrically distributed pressure testing push cylinders 25 are fixedly connected to the lower ends of the top plate 22. The output end of the pressure testing push cylinder 25 is fixedly connected to the movable plate 24, and the movable plate 24 is connected to the inflation and pressure testing assembly.

[0033] The inflation pressure testing component includes an inflation port 26 and an inflation connector 27. Multiple sets of inflation connectors 27 are fixedly connected to the upper end of the movable plate 24. The upper end of the inflation connector 27 is connected to the air pump through a pipe. The upper ends of multiple sets of inflation ports 26 are fixedly connected to the air outlets of the inflation connectors 27 respectively, and the inflation ports 26 and the inflation connectors 27 are connected. The pressure sensor is fixedly connected to the port of the inflation port 26 and is electrically connected to an external system.

[0034] The lower end of the air inlet 26 has a tapered hole structure, which is used to fit the upper end of the tubular workpiece for inflation.

[0035] The number of sets of the positioning clamping assembly, the air inlet 27 and the air inlet 26 are the same and correspond one-to-one. The number of sets of the three determines the number of tubular workpieces that a single air tightness testing mechanism can test for air tightness at the same time. The specific number of sets can be reasonably adjusted according to the actual production testing needs.

[0036] The x-axis moving assembly includes an x-axis moving slide rail 31 and an x-axis moving block 32. Two sets of x-axis moving slide rails 31, symmetrically distributed on the left and right, are fixedly connected to the base 21. The x-axis moving block 32 is slidably connected to the x-axis moving slide rail 31 through a slider. The right end of the x-axis moving block 32 is fixedly connected to the output end of the positioning clamping push cylinder 39.

[0037] The y-axis moving assembly includes a limiting sliding post 34, a y-axis moving slide rail 35, and a y-axis moving block 36. Two sets of symmetrically distributed y-axis moving slide rails 35 are fixedly connected to the upper end of the base 21. Each set of y-axis moving slide rails 35 consists of two symmetrically distributed slide rails. The two sets of symmetrically distributed y-axis moving blocks 36 are slidably connected to the y-axis moving slide rails 35 by sliders. Four sets of limiting sliding posts 34 are fixedly connected to the lower left and right ends of the two sets of y-axis moving blocks 36. The x-axis moving block 32 is provided with four sets of limiting inclined grooves 33 that are slidably connected to the four sets of limiting sliding posts 34. The limiting inclined grooves 33 are used to bring the two sets of y-axis moving blocks 36 closer to each other while the two sets of y-axis moving blocks 36 move to the right. The y-axis moving blocks 36 are connected to the positioning and clamping assembly.

[0038] The positioning and clamping assembly includes a clamping and positioning block 37 and a workpiece placement tube 38. The lower end of the workpiece placement tube 38 is fixedly connected to the frame 1 so that the opening of the workpiece placement tube 38 is closed. The x-axis moving block 32 has a hole for avoiding the workpiece placement tube 38. Two sets of clamping and positioning blocks 37 are symmetrically distributed front and rear and fixedly connected to two sets of y-axis moving blocks 36 respectively. The clamping and positioning block 37 is used to clamp the tubular workpiece inward.

[0039] The upper end of the workpiece placement tube 38 is fixedly connected with a rubber ring structure to ensure sealing.

[0040] To further improve the sealing performance of the lower end of the tubular workpiece, the workpiece placement tube 38 can be replaced with a quick connector for the tube opening, such as that from Anhui Weiyi Technology Co., Ltd. The quick connector is called an external sealing fixture. The external sealing fixture is connected to an air pump. After the tubular workpiece is placed into the external sealing fixture, the air pump is started. The rubber ring inside the external sealing fixture is inflated to achieve a sealing effect. After the tubular workpiece is inspected, the air pump is turned off.

[0041] In this invention, multiple tubular workpieces to be tested are placed into the workpiece placement tube 38 of the first station. The positioning and clamping push cylinder 39 is activated. Under the limiting action of the x-axis moving slide rail 31, the positioning and clamping push cylinder 39 pushes the x-axis moving block 32 to move horizontally to the right. With the combined cooperation of the limiting inclined groove 33, the limiting sliding column 34, and the y-axis moving slide rail 35, the two sets of y-axis moving blocks 36 move closer to each other, thereby driving the two sets of clamping and positioning blocks 37 to clamp and fix the tubular workpieces inward. The pressure testing push cylinder 25 is activated, and under the limiting action of the support rod 23, the moving plate moves. 24. Move downwards until the lower end of the air inlet 26 extends into the upper end of the tubular workpiece and the side wall of the lower end of the air inlet 26 abuts against the inner wall of the tubular workpiece. Start the air pump connected to the air inlet 27 to fill a certain amount of gas into the tubular workpiece. The pressure sensor detects the change in internal air pressure. If the air pressure remains stable for a period of time without change, it proves that the tubular workpiece has good airtightness. Place multiple products at the first station at once, clamp the products, and then test the test head. All four products have numerical displays, which can be compared and tested to make the results more intuitive.

[0042] When the tubular workpieces at the first station are being tested for air tightness, another set of tubular workpieces to be tested are placed in the workpiece placement tube 38 at the second station. Other operations are the same as above. When testing is being performed at the first station, another set of workpieces to be tested are placed in the second station for testing. This cycle is repeated, which reduces time costs and manual operation, allowing both machines and humans to work continuously. At the same time, it facilitates the visualization of test values, making it easier to compare and analyze them.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An airtightness testing device for detecting multiple products and enabling numerical comparison, comprising a frame (1), characterized in that: It also includes an airtightness testing mechanism, with two sets of airtightness testing mechanisms symmetrically distributed on the left and right for multi-station testing connected to the frame (1); The air tightness testing mechanism includes a pressure testing mechanism (2) and a positioning clamping mechanism (3). The positioning clamping mechanism (3) for clamping the tubular workpiece is connected to the pressure testing mechanism (2), and the pressure testing mechanism (2) for detecting the pressure change inside the tubular workpiece after inflation is connected to the frame (1). The positioning and clamping mechanism (3) includes an x-axis moving component, a y-axis moving component, a positioning and clamping component and a positioning and clamping push cylinder (39). The output end of the positioning and clamping push cylinder (39) is connected to the x-axis moving component. The x-axis moving component is connected to the y-axis moving component. The y-axis moving component is connected to multiple sets of positioning and clamping components. The housings of the x-axis moving component, the y-axis moving component, the positioning and clamping component and the positioning and clamping push cylinder (39) are all connected to the pressure testing mechanism (2).

2. The airtightness testing device for detecting multiple products and enabling numerical comparison according to claim 1, characterized in that, The pressure testing mechanism (2) includes a pressure-down component and an inflation pressure testing component. The pressure-down component is connected to the frame (1), the inflation pressure testing component is connected to the pressure-down component, and the housing of the positioning clamping push cylinder (39) is connected to the pressure-down component.

3. The airtightness testing device for detecting multiple products and enabling numerical comparison according to claim 2, characterized in that, The pressure-down assembly includes a base (21), a top plate (22), support rods (23), a movable plate (24), and a pressure test push cylinder (25). The lower end of the base (21) is fixedly connected to the frame (1), the upper end of the base (21) is connected to the x-axis movable assembly, the upper end of the base (21) is fixedly connected to the outer shell of the positioning clamping push cylinder (39), the upper ends of the four sets of support rods (23) are fixedly connected to the top plate (22), the lower ends of the four sets of support rods (23) are fixedly connected to the base (21), the movable plate (24) is limited and slidably connected to the support rods (23), the upper ends of the outer shells of the two sets of left and right symmetrically distributed pressure test push cylinders (25) are fixedly connected to the lower end of the top plate (22), the output end of the pressure test push cylinder (25) is fixedly connected to the movable plate (24), and the movable plate (24) is connected to the inflation pressure test assembly.

4. The airtightness testing device for detecting multiple products and enabling numerical comparison according to claim 3, characterized in that, The inflation pressure testing component includes an inflation port (26) and an inflation connector (27). Multiple sets of inflation connectors (27) are fixedly connected to the upper end of the movable plate (24). The upper end of the inflation connector (27) is connected to the air pump through a pipe. The upper ends of multiple sets of inflation ports (26) are fixedly connected to the air outlets of the inflation connectors (27) respectively, and the inflation ports (26) and the inflation connectors (27) are connected. The pressure sensor is fixedly connected to the port of the inflation port (26), and the pressure sensor is electrically connected to the external system.

5. The airtightness testing device for detecting multiple products and enabling numerical comparison according to claim 4, characterized in that, The number of sets of the positioning clamping assembly, the air inlet (27) and the air inlet (26) are the same and correspond one-to-one. The number of sets of the three determines the number of tubular workpieces that a single air tightness testing mechanism can test for air tightness at the same time.

6. The airtightness testing device for detecting multiple products and enabling numerical comparison according to claim 3, characterized in that, The x-axis moving assembly includes an x-axis moving slide rail (31) and an x-axis moving block (32). Two sets of x-axis moving slide rails (31) are symmetrically distributed on the left and right sides and are fixedly connected to the base (21). The x-axis moving block (32) is slidably connected to the x-axis moving slide rail (31) through a slider. The right end of the x-axis moving block (32) is fixedly connected to the output end of the positioning clamping push cylinder (39).

7. The airtightness testing device for detecting multiple products and enabling numerical comparison according to claim 6, characterized in that, The y-axis moving assembly includes a limiting sliding column (34), a y-axis moving slide rail (35), and a y-axis moving block (36). Two sets of y-axis moving slide rails (35) are fixedly connected to the upper end of the base (21). Each set of y-axis moving slide rails (35) consists of two slide rails that are symmetrically arranged on the left and right. The two sets of y-axis moving blocks (36) are symmetrically arranged on the left and right sides and are connected to the y-axis moving slide rails (35) by a slider. Four sets of limiting sliding columns (34) are fixedly connected to the lower left and right ends of the two sets of y-axis moving blocks (36). The x-axis moving block (32) is provided with four sets of limiting inclined grooves (33) that are connected to the four sets of limiting sliding columns (34) for limiting sliding. The limiting inclined grooves (33) are used to make the two sets of y-axis moving blocks (36) move closer to each other while the two sets of y-axis moving blocks (36) move to the right. The y-axis moving block (36) is connected to the positioning and clamping assembly.

8. The airtightness testing device for detecting multiple products and enabling numerical comparison according to claim 7, characterized in that, The positioning and clamping assembly includes a clamping and positioning block (37) and a workpiece placement tube (38). The lower end of the workpiece placement tube (38) is fixedly connected to the frame (1) so that the opening of the workpiece placement tube (38) is closed. The x-axis moving block (32) has a hole for avoiding the workpiece placement tube (38). Two sets of clamping and positioning blocks (37) are symmetrically distributed in front and behind and fixedly connected to two sets of y-axis moving blocks (36) respectively. The clamping and positioning block (37) is used to clamp the tubular workpiece inward.

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