Leak detector with elastic compression structure

Abstract

The utility model discloses a leak detector with elastic compression structure relates to leak detector utensil technical field, including bottom plate, the top surface front end both sides of bottom plate are installed with two support columns, the upper end of support column is connected with the top plate in common level, the common horizontal sliding connection of a plurality of support columns has the connecting plate, and the common installation of connecting plate and top plate has compression buffer subassembly, and the supporting positioning assembly is installed on the bottom plate, the utility model discloses the cooperation of first pressure reducer and second pressure reducer, is convenient for preventing the rigid collision of connecting plate compression workpiece, is convenient for the fixed four corners of workpiece of auxiliary supporting positioning assembly, through the cooperation of double shaft air cylinder, first compression cylinder and second electric push cylinder, is convenient for the feeding and positioning of workpiece fast realization, is convenient for improving the work efficiency of device, through above -mentioned structure has solved the problem that the existing leak detector is easy to cause the deviation of workpiece quick replacement when using.

Description

Technical Field

[0001] This utility model relates to the technical field of leak detection equipment, and in particular to a leak detection machine with an elastic clamping structure. Background Technology

[0002] A leak detector is an industrial device used to test the sealing performance of a product's cavity. It determines the leakage amount by filling the workpiece with a medium and monitoring pressure changes. It is widely used in the quality inspection of products such as automotive parts, gas meters, and medical devices to ensure that their sealing integrity meets safety standards. Existing leak detectors generally first place the workpiece on a support plate, then use a telescopic cylinder to control a pressure plate to press the workpiece. Then, a connecting plate and a first pressure reducer on the pressure plate are used to prevent rigid collisions during the pressing process. Subsequently, a cylinder controls a sealing block with an inflation head to inflate the workpiece. However, this structure lacks a rapid positioning mechanism, which can easily lead to poor connection between the workpiece's inflation port and inflation hole due to workpiece displacement during operation, resulting in air leakage. Therefore, the above-mentioned problems need to be improved. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a leak detector with an elastic compression structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a leak detector with an elastic compression structure, comprising a base plate, two support columns respectively installed on both sides of the front end of the top surface of the base plate, a top plate horizontally connected to the upper end of the support columns, an air circuit integration block installed on one side of the front end of the top surface of the top plate, and two pneumatic tubes respectively installed on both sides of the top surface of the top plate, a connecting plate horizontally slidably connected to multiple support columns, a compression buffer assembly jointly installed on the connecting plate and the top plate, and a support and positioning assembly installed on the base plate.

[0005] Preferably, the compression buffer assembly includes a telescopic cylinder installed in the middle of the top surface of the top plate. The output shaft of the telescopic cylinder passes through the top plate, and the lower end of the output shaft of the telescopic cylinder is connected to a connecting plate. Guide rods are connected to the lower ends of both sides of the top plate, and guide holes that cooperate with the guide rods to slide are opened on both sides of the connecting plate.

[0006] Preferably, a plurality of first pressure reducers are mounted around the middle of the connecting plate. Each first pressure reducer consists of a first spring and a first pressure reducer column. The first pressure reducer column is slidably connected to the connecting plate, and the first spring is sleeved on the first pressure reducer column. The lower ends of the plurality of first pressure reducer columns are horizontally connected to a pressing plate. The two ends of the first spring abut against the bottom surface of the connecting plate and the top surface of the pressing plate, respectively.

[0007] Preferably, the four corners of the pressure plate are provided with a second pressure reducing device. The second pressure reducing device consists of a second pressure reducing column, a second spring and a pressure head. The second pressure reducing column is slidably connected to the connecting plate. The pressure head is connected to the lower end of the second pressure reducing column. The second spring is sleeved on the second pressure reducing column, and the two ends of the second spring abut against the top surface of the connecting plate and the upper end of the pressure head, respectively.

[0008] Preferably, the support and positioning assembly includes two slide rails longitudinally installed in the middle of the top surface of the base plate, and a support plate is horizontally slidably connected to both slide rails. Sealing rings for mating workpieces are installed on the adjacent surfaces of the clamping plate and the support plate. A second electric push cylinder is longitudinally installed in the middle of the rear end of the top surface of the base plate. The second electric push cylinder is located below the support plate, and the end of the output shaft of the second electric push cylinder is connected to the front end of the support plate through a connecting block. A support block is provided at the front end of the support plate.

[0009] Preferably, the support block is mounted on the base plate, and two dual-axis cylinders and a second pressing cylinder are sequentially and horizontally mounted on the top surface of the support block. The second pressing cylinder is placed between the two dual-axis cylinders. The output shafts of the dual-axis cylinders are horizontally connected to a pressure plate. A sealing block is connected to the output shaft of the second pressing cylinder. An inflation head is mounted on the sealing block, and an inflation hole connected to the inflation head is opened in the middle of the rear end face of the sealing block. A sealing ring is mounted on the pressure plate and the rear end face of the sealing block. A mounting plate is provided on the other side of the rear end of the support block. The mounting plate is fixed to the base plate, and a first electric push cylinder is mounted on the upper end of the mounting plate. The output shaft of the first electric push cylinder passes through the mounting plate, and a top block is connected to the end of the output shaft of the first electric push cylinder.

[0010] Preferably, a mounting block is provided on the other side of the support plate, the mounting block is mounted on the base plate, and a protective shell is installed on the outer side of the mounting block; two first pressing cylinders are installed on the other side of the upper end of the mounting block, the output shaft of the first pressing cylinder passes through the mounting block, and a pressure block is connected to the end of the output shaft of the first pressing cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the telescopic cylinder and the connecting plate facilitates the control of the lifting and lowering of the clamping plate connected by the first pressure reducer, thus facilitating the clamping plate's pressing of the workpiece; the cooperation between the first and second pressure reducers helps prevent rigid collisions when the connecting plate presses the workpiece, and facilitates the auxiliary support and positioning components to fix the four corners of the workpiece; the cooperation between the dual-axis cylinder, the first clamping cylinder, and the second electric push cylinder facilitates the rapid loading, unloading, and positioning of the workpiece, thus improving the working efficiency of the device; the above structure solves the problem that existing leak detection machines are prone to displacement due to rapid workpiece replacement during use. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a three-dimensional schematic diagram of the overall mechanism proposed in this utility model; Figure 2 This is a schematic diagram of the overall structure proposed in this utility model from another perspective; Figure 3 This is a cross-sectional view of the overall structure proposed in this utility model; Figure 4 This is a three-dimensional schematic diagram of the supporting and pressing structure proposed in this utility model; Figure 5 This is a three-dimensional schematic diagram of the supporting structure proposed in this utility model; Figure 6 This is a three-dimensional schematic diagram of the positioning and detection component proposed in this utility model; Figure 7 This is a cross-sectional schematic diagram of the support plate and pressure plate mechanism proposed in this utility model.

[0013] The following are the components listed in the diagram: 1. Base plate; 2. Support column; 3. Connecting plate; 4. Top plate; 5. Guide rod; 6. Telescopic cylinder; 7. Air circuit integration block; 8. First pressure reducer; 9. Second pressure reducer; 10. Pressing plate; 11. Support plate; 12. Dual-shaft cylinder; 13. Support block; 14. First electric push cylinder; 15. First pressing cylinder; 16. Mounting block; 17. Second electric push cylinder; 18. Inflation head; 19. Second pressing cylinder. Detailed Implementation

[0014] 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.

[0015] Example: See Figures 1 to 7This utility model discloses a leak detector with an elastic clamping structure, comprising a base plate 1, two support columns 2 installed on the front two sides of the top surface of the base plate 1, and a top plate 4 horizontally connected to the upper ends of the support columns 2. An air circuit integration block 7 is installed on one side of the front surface of the top plate 4, and two pneumatic tubes are installed on both sides of the top surface of the top plate 4. A connecting plate 3 is horizontally slidably connected to the support columns 2, and a clamping buffer assembly is installed on the connecting plate 3 and the top plate 4. A support and positioning assembly is installed on the base plate 1. The clamping buffer assembly and the support and positioning assembly facilitate the control of workpiece positioning and clamping. The clamping buffer assembly includes a telescopic cylinder 6 installed in the middle of the top surface of the top plate 4, and the output shaft of the telescopic cylinder 6 passes through... The top plate 4 and the lower end of the output shaft of the telescopic cylinder 6 are connected to the connecting plate 3. The lower ends of both sides of the top plate 4 are connected to guide rods 5. The two sides of the connecting plate 3 are provided with guide holes that cooperate with the guide rods 5 to slide. The guide rods 5 and the top plate 4 facilitate the stable lifting and lowering of the connecting plate 3. Multiple first pressure reducers 8 are installed around the middle of the connecting plate 3. The first pressure reducer 8 is composed of a first spring and a first pressure reducer column. The first pressure reducer column is slidably connected to the connecting plate 3. The first spring is sleeved on the first pressure reducer column. The lower ends of multiple first pressure reducers are horizontally connected to a pressing plate 10. The two ends of the first spring abut against the bottom surface of the connecting plate 3 and the top surface of the pressing plate 10, respectively. The first pressure reducer 8 helps to prevent the pressing plate 10 from rigidly colliding with the workpiece.

[0016] In this utility model, the four corners of the pressing plate 10 are provided with second pressure reducing devices 9. The second pressure reducing device 9 consists of a second pressure reducing column, a second spring, and a pressure head. The second pressure reducing column is slidably connected to the connecting plate 3, the pressure head is connected to the lower end of the second pressure reducing column, and the second spring is sleeved on the second pressure reducing column. The two ends of the second spring abut against the top surface of the connecting plate 3 and the upper end of the pressure head, respectively. The second pressure reducing device 9 facilitates the fixation of the workpiece by the auxiliary support and positioning assembly. The support and positioning assembly includes two slide rails that are longitudinally installed in the middle of the top surface of the base plate 1. The support plate 11 is horizontally slidably connected to the two slide rails. Sealing rings for mating workpieces are installed on the adjacent surfaces of plate 10 and support plate 11. A second electric push cylinder 17 is longitudinally installed at the middle of the rear end of the top surface of the base plate 1. The second electric push cylinder 17 is located below the support plate 11, and the end of the output shaft of the second electric push cylinder 17 is connected to the front end of the support plate 11 through a connecting block. The front end of the support plate 11 is provided with a support block 13. The second electric push cylinder 17 facilitates the control of the movement of the support plate 11, thereby controlling the loading and unloading of workpieces. The support block 13 is installed on the base plate 1, and two dual-axis cylinders 12 and a second clamping cylinder 19 are sequentially and laterally installed on the top surface of the support block 13. The second pressing cylinder 19 is positioned between the two dual-shaft cylinders 12. A pressure plate is horizontally connected to the end of the output shaft of each dual-shaft cylinder 12. A sealing block is connected to the output shaft of the second pressing cylinder 19. An inflation head 18 is mounted on the sealing block, and an inflation hole for connecting to the inflation head 18 is opened in the middle of the rear end face of the sealing block. Sealing rings are installed on the rear end faces of the pressure plate and the sealing block. A mounting plate is provided on the other side of the rear end of the support block 13. The mounting plate is fixed to the base plate 1, and a first electric push cylinder 14 is mounted on the upper end of the mounting plate. The output shaft of the first electric push cylinder 14 passes through the mounting plate. The output shaft of 4 is connected to a top block. The first electric push cylinder 14 cooperates with the top block to facilitate auxiliary positioning of the workpiece. The other side of the support plate 11 is provided with a mounting block 16, which is mounted on the base plate 1. A protective shell is installed on the outside of the mounting block 16. Two first pressing cylinders 15 are installed on the other side of the upper end of the mounting block 16. The output shaft of the first pressing cylinder 15 passes through the mounting block 16, and a pressure block is connected to the end of the output shaft of the first pressing cylinder 15. The first pressing cylinder 15 facilitates the positioning and fixing of the workpiece by cooperating with the second electric push cylinder 17 and the dual-axis cylinder 12.

[0017] Working principle: When using this utility model, firstly, the telescopic cylinder 6 installed in the middle of the top surface of the top plate 4 is activated. The output shaft of the telescopic cylinder 6 drives the connecting plate 3 connected to it to rise along the support column 2, thereby causing the pressing plate 10 connected by multiple first pressure reducers 8 (composed of first springs and first pressure reducing columns) to rise synchronously. At the same time, the second electric push cylinder 17, which is installed longitudinally in the middle of the rear end of the top surface of the bottom plate 1 and placed below the support plate 11, is activated. The connecting block at the end of the output shaft of the second electric push cylinder 17 drives the support plate 11 to slide backward along the two slide rails in the middle of the top surface of the bottom plate 1. At this time, the workpiece to be tested is placed on the support plate 11. Then, the second electric push cylinder 17 is activated again to control the support plate 11 to slide forward to the pressing area; then, the two dual-axis cylinders 12 installed on the top surface of the support block 13, the two first pressing cylinders 15 installed on the other side of the upper end of the mounting block 16, and the first electric push cylinder 14 installed on the upper end of the mounting plate are activated. The output shaft of the dual-axis cylinder 12 drives the pressure plate connected to it to extend forward. The output shaft of the first pressing cylinder 15 passes through the mounting block 16 and drives the pressure block at the end to move inward. The output shaft of the first electric push cylinder 14 passes through the mounting plate and drives the top block at the end to push forward. The three cylinders cooperate with the second electric push cylinder 17 to limit and fix the workpiece to be tested from different directions through the pressure plate, the top block and the pressure block. At this time, the telescopic cylinder 6 is activated again, controlling the connecting plate 3 to descend along the support column 2 and the guide rod 5 (connected to the lower ends of both sides of the top plate 4, and slidingly engaged with the guide holes on both sides of the connecting plate 3), thereby driving the clamping plate 10 to descend synchronously to clamp the workpiece to be inspected; during this process, the second pressure reducer 9 (composed of the second pressure reducing column, the second spring and the pressure head) located at the four corners of the connecting plate 3 will assist in supporting the positioning component to further improve the positioning accuracy of the workpiece. At the same time, since the clamping plate 10 is connected to the connecting plate 3 through the first pressure reducer 8, when the clamping plate 10 contacts the surface of the workpiece, the first spring in the first pressure reducer 8 will undergo elastic deformation, thereby buffering the pressure of the clamping plate 10 and effectively preventing the clamping plate 10 from rigidly colliding with the workpiece. After the workpiece clamping operation is completed, the second clamping cylinder 19, which is installed on the top surface of the support block 13 and placed between the two dual-axis cylinders 12, is activated. The output shaft of the second clamping cylinder 19 drives the sealing block connected to the end to move forward until the sealing block is in contact with the air inlet of the workpiece. At this time, through the air inlet head 18 installed on the sealing block and the air inlet hole connected to the air inlet head 18 in the middle of the rear end face of the sealing block, the detection gas is injected into the workpiece. Finally, the air tightness of the workpiece is judged by the pressure change of the detection gas, thus completing the entire workpiece leak detection operation.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A leak detector with an elastic compression structure, comprising a base plate (1), characterized in that: Two support columns (2) are installed on the front two sides of the top of the base plate (1). The upper ends of the support columns (2) are connected to the top plate (4) horizontally. An air circuit integration block (7) is installed on one side of the front of the top of the top plate (4). Two pneumatic tubes are installed on the top two sides of the top surface of the top plate (4). A connecting plate (3) is horizontally slidably connected to the multiple support columns (2). A pressing buffer assembly is installed on the connecting plate (3) and the top plate (4). A support and positioning assembly is installed on the base plate (1).

2. A leak detector with an elastic compression structure according to claim 1, characterized in that: The compression buffer assembly includes a telescopic cylinder (6) installed in the middle of the top surface of the top plate (4). The output shaft of the telescopic cylinder (6) passes through the top plate (4), and the lower end of the output shaft of the telescopic cylinder (6) is connected to the connecting plate (3). Guide rods (5) are connected to the lower ends of both sides of the top plate (4). Guide holes that cooperate with the sliding of the guide rods (5) are opened on both sides of the connecting plate (3).

3. A leak detector with an elastic compression structure according to claim 2, characterized in that: Multiple first pressure reducers (8) are installed around the middle of the connecting plate (3). Each first pressure reducer (8) consists of a first spring and a first pressure reducer column. The first pressure reducer column is slidably connected to the connecting plate (3). The first spring is sleeved on the first pressure reducer column. The lower ends of the multiple first pressure reducer columns are horizontally connected to a pressing plate (10). The two ends of the first spring abut against the bottom surface of the connecting plate (3) and the top surface of the pressing plate (10), respectively.

4. A leak detector with an elastic compression structure according to claim 3, characterized in that: The four corners of the pressure plate (10) are provided with a second pressure reducing device (9). The second pressure reducing device (9) consists of a second pressure reducing column, a second spring and a pressure head. The second pressure reducing column is slidably connected to the connecting plate (3). The pressure head is connected to the lower end of the second pressure reducing column. The second spring is sleeved on the second pressure reducing column, and the two ends of the second spring abut against the top surface of the connecting plate (3) and the upper end of the pressure head, respectively.

5. A leak detector with an elastic compression structure according to claim 3, characterized in that: The support and positioning assembly includes two slide rails that are longitudinally installed in the middle of the top surface of the base plate (1). A support plate (11) is horizontally slidably connected to the two slide rails. Sealing rings for matching workpieces are installed on the close surfaces of the clamping plate (10) and the support plate (11). A second electric push cylinder (17) is longitudinally installed in the middle of the rear end of the top surface of the base plate (1). The second electric push cylinder (17) is placed below the support plate (11), and the end of the output shaft of the second electric push cylinder (17) is connected to the front end of the support plate (11) through a connecting block. A support block (13) is provided at the front end of the support plate (11).

6. A leak detector with an elastic compression structure according to claim 5, characterized in that: The support block (13) is installed on the base plate (1), and two dual-axis cylinders (12) and a second pressing cylinder (19) are installed horizontally on the top surface of the support block (13). The second pressing cylinder (19) is placed between the two dual-axis cylinders (12). The output shaft ends of the dual-axis cylinders (12) are connected to a pressure plate horizontally. A sealing block is connected to the output shaft of the second pressing cylinder (19). An inflation head (18) is installed on the sealing block. An inflation hole connected to the inflation head (18) is opened in the middle of the rear end face of the sealing block. A sealing ring is installed on the pressure plate and the rear end face of the sealing block. An installation plate is provided on the other side of the rear end of the support block (13). The installation plate is fixed to the base plate (1), and a first electric push cylinder (14) is installed on the upper end of the installation plate. The output shaft of the first electric push cylinder (14) passes through the installation plate, and a top block is connected to the end of the output shaft of the first electric push cylinder (14).

7. A leak detector with an elastic compression structure according to claim 5, characterized in that: The other side of the support plate (11) is provided with a mounting block (16), which is mounted on the base plate (1) and a protective shell is installed on the outside of the mounting block (16); two first pressing cylinders (15) are installed on the other side of the upper end of the mounting block (16), the output shaft of the first pressing cylinder (15) passes through the mounting block (16), and a pressure block is connected to the end of the output shaft of the first pressing cylinder (15).

Images