Leak detection machine

Abstract

The utility model relates to a leak detection machine, which comprises a base, a working table plate, a leak detection device and a leak detection device, the two sliding rails are fixedly connected to the working table plate and located on the side, away from the base, of the working table plate; the object carrying plate is provided with two sliding blocks, and the two sliding blocks are connected to the two sliding rails in a sliding mode respectively; the mold is located on the side, away from the sliding rail, of the carrying plate. The object pushing part is fixedly connected to the working table plate, the object pushing part is provided with a side push rod, and the side push rod is located on the side, close to the mold, of the object pushing part; when observed in the vertical direction, the two sliding rails are parallel to each other, the carrying plate slides in the first direction along the sliding rails, and when observed in the horizontal direction, the side push rods abut against the mold and push the mold to move in the second direction.

Description

Technical Field

[0001] This utility model relates to the field of precision instruments, and in particular to a leak detector. Background Technology

[0002] In modern automotive manufacturing, the oil pan is a key component of the engine, and its airtightness directly affects the engine's performance and lifespan. Therefore, the oil pan must undergo rigorous airtightness testing during production to ensure its sealing performance meets design standards. However, a long-standing technical challenge in the actual testing process is the inaccurate positioning of the sealing plate and the mold during the oil pan airtightness testing.

[0003] Traditional airtightness testing methods typically involve placing the oil pan within a specially designed mold, then sealing the opening of the oil pan with a sealing plate to form a closed testing chamber. This chamber is then filled with gas at a certain pressure, and the presence of leaks in the oil pan is assessed by monitoring changes in gas pressure. However, due to the complex and varied shapes of oil pans, and issues such as dimensional tolerances and deformations during production, precise positioning between the sealing plate and the mold becomes extremely difficult. Inaccurate positioning can lead to a series of adverse consequences. It may cause the sealing plate to fail to fully conform to the opening of the oil pan, thus creating a leakage path during testing, affecting the accuracy of the test results, and causing unnecessary physical damage to the oil pan or mold, increasing production costs and scrap rates. In addition, frequent manual adjustments to the positioning are not only inefficient but also increase the risk of human error.

[0004] Therefore, it is necessary to provide a leak detector that can be effectively aligned and improve detection efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a leak detection machine that can effectively align openings and improve production efficiency.

[0006] According to one aspect of this application, a leak detector is provided, the leak detector comprising:

[0007] Base

[0008] The workbench is fixedly connected to the base;

[0009] The slide rails are fixedly connected to the worktable and are located on the side of the worktable away from the base.

[0010] The loading plate is equipped with two sliders, which are slidably connected to two slide rails respectively;

[0011] The mold is located on the side of the carrier plate opposite to the slide rail;

[0012] The pushing part is fixedly connected to the worktable plate. The pushing part is provided with a side push rod, which is located on the side of the pushing part closer to the mold.

[0013] When viewed vertically, the two slide rails are parallel to each other, and the loading plate slides along the slide rails in a first direction. When viewed horizontally, the side push rod abuts against the mold and pushes the mold to move in a second direction.

[0014] More preferably, the leak detector further includes:

[0015] The four support pillars are fixedly connected to the workbench and are located on the side of the workbench away from the base.

[0016] The movable clamping plate is slidably connected to the support column and is located on the side of the mold opposite to the worktable.

[0017] The movable clamp moves upward along the support column on a third side.

[0018] More preferably, the leak detector further includes:

[0019] The top plate is fixedly connected to the support column and is located at the end of the support column away from the workbench plate;

[0020] The top plate is provided with a limiting block, and the limiting block is located between the movable clamping plate and the top plate. When the movable clamping plate moves along the support column, if the movable clamping plate abuts against the limiting block, the movable clamping plate stops moving.

[0021] More preferably, the leak detector further includes:

[0022] A drive unit passes through the top plate and is fixedly connected to the side of the movable clamping plate away from the mold;

[0023] The drive unit pushes the movable clamp to move along the third direction.

[0024] More preferably, the movable clamp includes:

[0025] The upper sealing member is fixedly connected to the movable clamping plate and is located on the side of the movable clamping plate away from the driving part;

[0026] A barometric pressure sensor is fixedly connected to the upper sealing member and is located on the side of the upper sealing member opposite to the movable clamp.

[0027] The upper sealing member moves along the third direction with the movable clamp to abut against the mold.

[0028] More preferably, when the upper sealing member abuts against the mold, the pressure sensor monitors the pressure between the mold and the upper sealing member.

[0029] More preferably, the leak detector further includes:

[0030] The frame is fixedly connected to the base to protect the leak detector;

[0031] The electrical cabinet is fixedly connected to the base and to the frame.

[0032] More preferably, the electrical cabinet includes:

[0033] A three-color indicator light is electrically connected to the electrical cabinet and is located on the side of the electrical cabinet away from the base;

[0034] The control panel is fixedly connected to the electrical cabinet and electrically connected to the electrical cabinet.

[0035] More preferably, the base includes:

[0036] An industrial control computer is fixed to the base and electrically connected to the drive unit and the electrical cabinet, respectively.

[0037] The base foot is fixed to the base and located on the side of the base away from the worktable plate, and the base foot supports the base.

[0038] This utility model has the following beneficial effects:

[0039] By having the carrier plate slide along the slide rail in the first direction and the side push rod push the mold to move in the second direction, the horizontal position of the mold can be adjusted, and it can be effectively aligned with the opening of the oil pan inside the mold when the upper sealing part abuts against the mold. This method of adjusting the mold position by having the carrier plate slide along the slide rail and the side push rod push the mold avoids errors caused by manual mold alignment, effectively improving inspection efficiency. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 This is a three-dimensional structural diagram of the leak detector described in one embodiment of this application;

[0042] Figure 2 This is a schematic diagram of the planar structure of the leak detector described in one embodiment of this application;

[0043] Figure 3 This is a schematic diagram of the planar structure of each component on the workbench of the leak detector described in one embodiment of this application;

[0044] Figure 4 This is an enlarged planar structural diagram of the leak detector described in one embodiment of this application;

[0045] Explanation of reference numerals: 200, Leak detector; 10, Base; 11, Industrial computer; 12, Foot; 20, Workbench; 30, Slide rail; 40, Carrying plate; 41, Slider; 50, Mold; 60, Pushing part; 61, Side push rod; 70, Support column; 80, Moving clamp; 81, Upper sealing part; 82, Air pressure sensor; 90, Top plate; 91, Limit block; 100, Drive unit; 110, Frame; 120, Electrical cabinet; 121, Three-color indicator light; 122, Control panel; F1, First direction; F2, Second direction; F3, Third direction. Detailed Implementation

[0046] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0047] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0048] 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 application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] Please refer to Figure 1 - Figure 4 One embodiment of this application provides a leak detection machine 200, which includes: a base 10, a worktable 20, a slide rail 30, a carrying plate 40, a mold 50, and a pushing part 60.

[0050] The worktable 20 is fixedly connected to the base 10. Two slide rails 30 are fixedly connected to the worktable 20 and located on the side of the worktable 20 opposite to the base 10. The carrying plate 40 has two sliders 41, which are slidably connected to the two slide rails 30 respectively. The mold 50 is located on the side of the carrying plate 40 opposite to the slide rails 30. The pushing part 60 is fixedly connected to the worktable 20 and has a side push rod 61 located on the side of the pushing part 60 near the mold 50. Viewed vertically, the two slide rails 30 are parallel to each other, and the carrying plate 40 slides along the slide rails 30 in a first direction F1. Viewed horizontally, the side push rod 61 abuts against the mold 50 and pushes the mold 50 to move in a second direction F2.

[0051] The connection between the slide rail 30 and the slider 41 on the carrier plate 40 ensures the stability and straightness of the carrier plate 40 during movement. This design reduces friction and wobbling, allowing the mold 50 to maintain high-precision positioning during movement. The two slide rails 30 are arranged parallel to each other, ensuring that the carrier plate 40 does not deviate from the predetermined track during movement, further improving positioning accuracy. The carrier plate 40 can slide along the slide rail 30 in the first direction F1, which is typically used to feed the mold 50 into or out of the inspection area. The side push rod 61 can push the mold 50 in the horizontal direction (i.e., the second direction F2), which is typically used for fine-tuning or positioning the mold 50 within the inspection area to adapt to different inspection needs. The pushing part 60, as an independent module, is fixedly connected to the worktable 20 and pushes the mold 50 through the side push rod 61. This modular design makes the structure of the entire device clearer and facilitates maintenance and upgrades. The layout, combining vertical (slide rail 30) and horizontal (side push rod 61) elements, effectively utilizes the workspace, allowing the entire inspection device to remain compact while still meeting the transfer and positioning requirements of the mold 50. The inspection device is equipped with an automated control system, which uses programming to control the movement of the carrier plate 40 and the side push rod 61, enabling automatic transfer and positioning of the mold 50, thereby improving inspection efficiency.

[0052] More preferably, the leak detector 200 further includes a support column 70 and a movable clamping plate 80.

[0053] The four support pillars 70 are fixedly connected to the workbench 20 and are located on the side of the workbench facing away from the base 10. The movable clamping plate 80 is slidably connected to the support pillars 70 and is located on the side of the mold 50 facing away from the workbench 20. The movable clamping plate 80 moves along the support pillars 70 in the third direction F3.

[0054] The support columns 70, acting as additional support structures, enhance the stability of the entire inspection device. They are fixedly connected to the worktable 20 and located on the side of the worktable facing away from the base 10, providing a stable sliding track for the movable clamping plate 80. This arrangement helps prevent swaying or tilting caused by the movement of the mold 50 or the carrier plate 40 during inspection, thus ensuring the accuracy of the inspection results. The movable clamping plate 80 is slidably connected to the support columns 70 and located on the side of the mold 50 facing away from the worktable 20. By moving along the support columns 70 in the third direction F3 (typically perpendicular to the movement direction of the slide rail 30 and the side push rod 61), the movable clamping plate 80 can clamp and position the mold 50, ensuring the precise position of the mold 50 within the inspection area, thereby improving the accuracy and reliability of the inspection. By adjusting the position of the movable clamping plate 80 on the support columns 70, molds 50 of different sizes and shapes in the vertical direction can be accommodated. This flexibility allows the same inspection device to be used for inspecting various types of molds 50.

[0055] More preferably, the leak detector 200 further includes a top plate 90. The top plate 90 is fixedly connected to the support column 70 and is located at the end of the support column 70 opposite to the worktable 20. The top plate 90 is provided with a limiting block 91, and the limiting block 91 is located between the movable clamping plate 80 and the top plate 90. When the movable clamping plate 80 moves along the support column 70, if the movable clamping plate 80 abuts against the limiting block 91, the movable clamping plate 80 stops moving.

[0056] The top plate 90 is fixedly connected to the top of the support column 70, providing an additional support surface for the entire testing device. This helps enhance the overall stability of the structure and prevents swaying or tilting caused by the movement of the mold 50 or the moving clamping plate 80 during testing. A limiting block 91 is positioned between the top plate 90 and the moving clamping plate 80, serving as a safety stop. When the moving clamping plate 80 moves along the support column 70 to a predetermined position and abuts against the limiting block 91, it stops moving, thus preventing equipment damage or personal injury due to excessive movement. By setting the limiting block 91, the movement range of the moving clamping plate 80 on the support column 70 can be precisely controlled. This ensures the accurate positioning of the mold 50 during testing and the accurate movement of the moving clamping plate 80 when clamping and releasing the mold 50. By adjusting the position of the limiting block 91, molds 50 of different sizes and shapes can be accommodated, improving equipment utilization and economic efficiency.

[0057] More preferably, the leak detection machine 200 further includes a drive unit 100. The drive unit 100 passes through the top plate 90 and is fixedly connected to the movable clamping plate 80 on the side opposite to the mold 50. The drive unit 100 pushes the movable clamping plate 80 to move along the third direction F3.

[0058] The addition of the drive unit 100 enables automated control of the moving clamp 80. Through programming or preset commands, the drive unit 100 can precisely control the moving speed, distance, and stopping position of the moving clamp 80, thereby improving the automation and efficiency of the inspection process. Automated control reduces reliance on manual operation, lowers operational difficulty and error rate, and makes the inspection process more stable and reliable. The drive unit 100 typically has high control precision and response speed, enabling precise control of the position of the moving clamp 80. This helps ensure the accurate positioning of the mold 50 during the inspection process, as well as the accurate movement of the moving clamp 80 when clamping and releasing the mold 50. Precise control helps improve the accuracy and reliability of the inspection, making the inspection results more consistent with actual needs.

[0059] More preferably, the movable clamp 80 includes an upper sealing member 81 and a pressure sensor 82.

[0060] The upper sealing member 81 is fixedly connected to the movable clamping plate 80 and is located on the side of the movable clamping plate 80 opposite to the driving part 100. The air pressure sensor 82 is fixedly connected to the upper sealing member 81 and is located on the side of the upper sealing member 81 opposite to the movable clamping plate 80. The upper sealing member 81 moves with the movable clamping plate 80 along the third direction F3 to abut against the mold 50.

[0061] The upper sealing element 81 is fixedly connected to the movable clamping plate 80 and located on the side of the movable clamping plate 80 opposite to the drive unit 100. When the movable clamping plate 80 moves along the third direction F3, the upper sealing element 81 moves accordingly and abuts against the mold 50, forming a seal. This design ensures isolation between the detection area and the external environment, providing the necessary conditions for airtightness testing. A pressure sensor 82 is fixedly connected to the upper sealing element 81 and located on the side of the upper sealing element 81 opposite to the movable clamping plate 80. During the testing process, the pressure sensor 82 can monitor the gas pressure changes in the detection area in real time. This is an important basis for determining whether the tested object has a leak. By integrating the pressure sensor 82 onto the upper sealing element 81, direct contact between the sensor and the detection area can be ensured, thereby improving the accuracy and reliability of monitoring. During airtightness testing, if a leak exists in the detection area, it may cause the gas pressure to drop or rise, thereby triggering a safety alarm or requiring other safety measures. By integrating the gas pressure sensor 82 onto the upper sealing component 81, changes in gas pressure can be monitored in real time, and safety measures can be taken when necessary to ensure the safety of the detection process.

[0062] More preferably, when the upper sealing member 81 abuts against the mold 50, the air pressure sensor 82 monitors the air pressure between the mold 50 and the upper sealing member 81.

[0063] By placing a pressure sensor 82 between the upper sealing component 81 and the mold 50, pressure changes between the two can be directly monitored. This direct monitoring method can more accurately reflect the sealing performance of the mold 50 because the pressure sensor 82 measures the actual air pressure inside the mold 50 (or the detection area). By directly monitoring the air pressure between the mold 50 and the upper sealing component 81, the pressure sensor 82 can capture minute pressure changes, thereby achieving accurate detection of minute leaks. This is of great significance for improving product quality and production safety.

[0064] More preferably, the leak detector 200 further includes a frame 110 and an electrical cabinet 120.

[0065] The frame 110 is fixedly connected to the base 10 to protect the leak detector 200. The electrical cabinet 120 is fixedly connected to the base 10 and is also fixed to the frame 110.

[0066] The frame 110 is fixedly connected to the base 10, providing a robust enclosure for the entire leak detector 200. This helps prevent external factors (such as dust, moisture, impact, etc.) from damaging the detection device, thereby extending the equipment's service life. The frame 110 is typically designed with a protection level in mind, capable of withstanding a certain degree of physical and chemical corrosion, ensuring the detection device can still function normally in harsh environments. The frame 110 not only protects the detection device from external damage but also serves a safety protection function. It prevents operators from accidentally touching live parts or high-pressure gas pipelines inside the detection device, thereby reducing the risk of electric shock or explosions. Simultaneously, the design of the frame 110 complies with relevant safety standards and regulations, ensuring the safety of the detection device during use. The electrical cabinet 120 is fixedly connected to the base 10 and secured to the frame 110. The electrical cabinet 120 typically houses the electrical components required by the detection device, such as power supplies, controllers, and sensors. This design allows for centralized management and protection of electrical components, reducing wiring confusion and the risk of malfunctions caused by the dispersion of electrical components. The addition of the frame 110 and the electrical cabinet 120 enhances the stability of the entire testing device. They provide a robust support structure for the testing device, preventing measurement errors or safety accidents caused by equipment shaking or tilting.

[0067] More preferably, the electrical cabinet 120 includes: a three-color indicator light 121 and a control panel 122.

[0068] The tri-color indicator light 121 is electrically connected to the electrical cabinet 120 and is located on the side of the electrical cabinet 120 opposite to the base 10. The control panel 122 is fixedly connected to the electrical cabinet 120 and is electrically connected to the electrical cabinet 120.

[0069] The tri-color indicator light 121 (typically including red, yellow, and green) visually reflects the working status or test results of the testing device. Green may indicate a successful test or normal equipment operation, yellow may indicate a warning or a situation requiring attention, and red may indicate an error, malfunction, or test failure. Positioning the tri-color indicator light 121 on the side of the electrical cabinet 120 away from the base 10 allows operators to easily observe its status. This design improves operational efficiency, as operators do not need to approach the equipment or bend down to check the indicator light. During testing, if any abnormality or malfunction occurs, the tri-color indicator light 121 can promptly issue a warning, reminding operators to pay attention to safety and take appropriate measures. This helps prevent accidents. The touch control panel 122 provides an intuitive, graphical user interface, enabling operators to easily understand and operate the testing device. Compared to traditional physical buttons and switches, the touch control panel 122 is more intuitive and user-friendly. The touch control panel 122 integrates multiple functions, such as parameter setting, data recording, result analysis, and alarm prompts. This highly integrated design allows operators to complete the entire testing process without frequently switching between different control panels or devices. Through the touch control screen 122, operators can precisely set testing parameters, monitor the testing process in real time, and quickly obtain testing results. This precision and efficiency help improve testing quality and production efficiency.

[0070] More preferably, the base 10 includes an industrial computer 11 and feet 12.

[0071] The industrial computer 11 is fixed to the base 10 and is electrically connected to the drive unit 100 and the electrical cabinet 120 respectively. The base foot 12 is fixed to the base 10 and is located on the side of the base 10 away from the workbench 20, and the base foot 12 supports the base 10.

[0072] The industrial control computer 11, serving as the control center of the testing device, is responsible for processing data from the drive unit 100, electrical cabinet 120, and other sensors, and making decisions and controls according to preset programs and algorithms. It ensures that the testing device operates according to predetermined requirements. The industrial control computer 11 possesses powerful data processing capabilities, enabling real-time processing and analysis of data generated during the testing process. This helps improve the accuracy and reliability of the testing while reducing the need for manual intervention. The industrial control computer 11 is equipped with multiple communication interfaces, such as Ethernet, USB, and serial ports, allowing for efficient data exchange and communication with the drive unit 100, electrical cabinet 120, and other external devices. The industrial control computer 11 adopts industrial-grade hardware and software design, exhibiting high stability and reliability. It can operate stably for extended periods in harsh industrial environments, ensuring the continuous operation of the testing device. The feet 12 are fixed to the side of the base 10 away from the worktable 20, serving to support the base 10. They ensure the stability and robustness of the testing device during operation, preventing measurement errors or safety accidents caused by equipment shaking or tilting. The feet 12 are typically designed to be height-adjustable, allowing operators to adjust the height and level of the inspection device as needed. This adjustability helps ensure the correct positioning and levelness of the inspection device on the worktable. The feet 12 are also designed with vibration damping in mind, reducing the impact of external vibrations on the inspection device through the use of shock-absorbing materials or structures. This contributes to improved inspection accuracy and stability.

[0073] In this way, by sliding the carrier plate 40 along the slide rail 30 in the first direction F1, and pushing the mold 50 along the second direction F2 with the side push rod 61, the horizontal position of the mold 50 can be adjusted, and when the upper sealing member 81 abuts against the mold 50, it can be effectively aligned with the opening of the oil pan inside the mold 50. By using the method of sliding the carrier plate 40 along the slide rail 30 and pushing the mold 50 with the side push rod 61 to adjust the position of the mold 50, errors caused by manual alignment of the mold 50 are avoided, effectively improving the inspection efficiency.

[0074] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A leak detector for detecting the air tightness of an oil pan provided with an opening, characterized in that, The leak detector comprises: a base, a workbench plate fixedly connected to the base; two slide rails fixedly connected to the workbench plate and located on the side of the workbench plate away from the base; a carrier plate provided with two slide blocks, and the two slide blocks are respectively slidably connected to the two slide rails; a mold located on the side of the carrier plate away from the slide rails; a pushing part fixedly connected to the workbench plate, and the pushing part is provided with a side pushing rod and located on the side of the pushing part close to the mold; wherein, as viewed in the vertical direction, the two slide rails are parallel to each other, and the carrier plate slides along the slide rails in a first direction; as viewed in the horizontal direction, the side pushing rod abuts against the mold and pushes the mold to move in a second direction.

2. A leak detector according to claim 1, wherein The leak detector further comprises: four support columns fixedly connected to the workbench plate and located on the side of the workbench plate away from the base; a moving clamping plate slidably connected to the support columns and located on the side of the mold away from the workbench plate; wherein, the moving clamping plate moves along the support columns in a third direction.

3. A leak detector according to claim 2, wherein The leak detector further comprises: a top plate fixedly connected to the support columns and located on the end of the support columns away from the workbench plate; wherein, the top plate is provided with a limiting block, and the limiting block is located between the moving clamping plate and the top plate; when the moving clamping plate abuts against the limiting block during the movement of the moving clamping plate along the support columns, the moving clamping plate stops moving.

4. A leak detector according to claim 3, wherein The leak detector further comprises: a driving part penetrating through the top plate and fixedly connected to the side of the moving clamping plate away from the mold; wherein, the driving part pushes the moving clamping plate to move in the third direction.

5. A leak detector according to claim 4, wherein The moving clamping plate comprises: an upper blocking piece fixedly connected to the moving clamping plate and located on the side of the moving clamping plate away from the driving part; a gas pressure sensor fixedly connected to the upper blocking piece and located on the side of the upper blocking piece away from the moving clamping plate; wherein, the upper blocking piece moves along the third direction with the moving clamping plate to abut against the mold.

6. A leak detector according to claim 5, wherein When the upper blocking piece abuts against the mold, the gas pressure sensor monitors the gas pressure between the mold and the upper blocking piece.

7. A leak detector according to claim 4, wherein The leak detector further comprises: a frame fixedly connected to the base to protect the leak detector; an electric cabinet fixedly connected to the base and fixed to the frame.

8. A leak detector according to claim 7, wherein, The electric cabinet comprises: a three-color indicating lamp electrically connected to the electric cabinet and located on the side of the electric cabinet away from the base; a control screen fixedly connected to the electric cabinet and electrically connected to the electric cabinet.

9. A leak detector according to claim 8, wherein, The base comprises: an industrial computer fixed to the base and electrically connected to the driving part and the electric cabinet respectively; a bottom foot fixed to the base and located on the side of the base away from the workbench plate, and the bottom foot supports the base.

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