Airtightness detection device

Abstract

The utility model discloses an airtight detection device, which is used to detect the airtightness of a workpiece. The airtight detection device includes a frame, a fixture assembly, a sealing assembly and a detection assembly. The fixture assembly has an installation area, and the workpiece is fixed in the installation area; the sealing assembly includes a plurality of sealing mechanisms, and the sealing mechanism includes a movable abutting rod, the abutting top end of the abutting rod abuts against the workpiece, and the abutting top end of the sealing mechanism is provided with a first sealing member, and the first sealing member is used to seal the opening of the workpiece; the detection assembly includes a detection mechanism, and the detection end of the detection mechanism abuts against the workpiece, and the detection mechanism is used to detect the airtightness inside the workpiece. The workpiece is fixed on the fixture assembly, and then the pores on the workpiece are automatically blocked by a plurality of sealing mechanisms, which can realize the blocking of the pores of the workpiece and replace manual blocking, thereby improving the blocking quality and blocking efficiency. Therefore, the semi-automatic production of the airtight detection device can improve the airtightness detection efficiency of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder head air tightness detection, in particular to an air tightness detection device. Background Art

[0002] The cylinder head is one of the important carriers of electronic components in the suspension system, which directly affects the functional use of electronic components. When the car is driving on different road conditions, the ECAS electronic suspension system adjusts the intake volume in the cylinder head to achieve vehicle stability. The structure of this system is very complex. In order to obtain the finished cylinder head, its airtightness test is a very important process in the mechanical processing process.

[0003] Generally, the air tightness test of the cylinder head is to seal all the corresponding positions of a cavity number, leaving only one inflation port, and then perform an air tightness test on the product by requiring air pressure. Generally, the air holes on the cylinder head are sealed manually, which is slow and inefficient. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an airtightness detection device, which can replace the manual blocking of the air holes on the cylinder head and improve the efficiency of airtightness detection.

[0005] According to the airtightness detection device of the embodiment of the utility model, the airtightness detection device is used to detect the airtightness of a workpiece, and the airtightness detection device includes:

[0006] A frame having a workbench;

[0007] A fixture assembly, the fixture assembly is arranged on the workbench, the fixture assembly is used to clamp and fix the workpiece, the fixture assembly has an installation area, and the workpiece is fixed in the installation area;

[0008] A sealing assembly, the sealing assembly is arranged on the workbench and located at the peripheral side of the workpiece, the sealing assembly is used to seal the opening on the workpiece, the sealing assembly includes a plurality of sealing mechanisms, the sealing mechanisms are arranged on the workbench, the sealing mechanisms include movable abutting rods, the abutting top end of the abutting rods abuts against the workpiece, the abutting top end of the sealing mechanism is provided with a first sealing member, the first sealing member is used to seal the opening of the workpiece; and

[0009] A detection component, which can be movably arranged on the workbench and located on one side of the workpiece, is used to detect the airtightness of the workpiece. The detection component includes a detection mechanism, a detection end of the detection mechanism abuts against the workpiece, and the detection mechanism is used to detect the airtightness inside the workpiece.

[0010] According to the airtight detection device of the embodiment of the utility model, at least the following beneficial effects are achieved: the workpiece is fixed on the fixture assembly, and then the pores on the workpiece are automatically sealed by the plurality of sealing mechanisms on the sealing assembly, which can realize the sealing of the pores of the workpiece and replace manual sealing, thereby improving the sealing quality and efficiency. Therefore, the semi-automatic production of the airtight detection device can improve the airtight detection efficiency of the workpiece.

[0011] According to some embodiments of the present invention, the clamp assembly includes:

[0012] a fixing plate, the fixing plate being disposed on the workbench, a second sealing member being disposed on an upper surface of the fixing plate, the mounting area being located on the fixing plate, and the second sealing member being located in the mounting area; and

[0013] A positioning member is installed on the fixing plate, a plurality of the positioning members are provided, and the installation area is defined between the plurality of the positioning members, and the positioning member is used to limit the workpiece.

[0014] According to some embodiments of the present invention, the positioning member includes at least one of a positioning column and a positioning block.

[0015] According to some embodiments of the utility model, the sealing mechanism further includes:

[0016] A first driving member, the first driving member is disposed on the workbench; and

[0017] A buffer mechanism is provided on the output end of the first driving member, the push rod is connected to the first driving member through the buffer mechanism, and the first driving member drives the push rod to move away from or push against the workpiece through the buffer mechanism.

[0018] According to some embodiments of the present utility model, the buffer mechanism includes a guide structure and a buffer member, the buffer member is arranged on the guide structure, and the buffer member moves along the guide direction of the guide structure.

[0019] According to some embodiments of the present invention, a marking assembly is further included, and the marking assembly is mounted on the sealing mechanism through a mounting plate, and the marking assembly includes:

[0020] a second drive member, the second drive member being mounted on the mounting plate, and

[0021] The marking member is rotatably mounted on the mounting plate via a connecting member, the output end of the second driving member is hinged to the connecting member, one end of the connecting member is hinged to the mounting plate, the second driving member drives the connecting member to swing with the hinge point on the mounting plate as the rotation center, and the second driving member drives the marking member to make a mark on the workpiece.

[0022] According to some embodiments of the present invention, the clamp assembly and the sealing assembly are both provided in multiple groups, and the sealing assembly is provided in a one-to-one correspondence with the clamp assembly.

[0023] According to some embodiments of the utility model, the clamp assembly is slidably disposed on the workbench through a sliding assembly, and the sliding assembly includes:

[0024] a slide table, the slide table being used to mount the fixture assembly; and

[0025] A sliding mechanism is arranged on the workbench, the slide table is installed on the output end of the sliding mechanism, and the sliding mechanism drives the slide table to slide on the workbench.

[0026] According to some embodiments of the present invention, the sliding mechanism is a slider rail structure.

[0027] According to some embodiments of the utility model, the detection component further includes an inflation mechanism, which is disposed on one side of the sealing mechanism, and an inflation end of the inflation mechanism can abut against an opening of the workpiece.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 A schematic diagram of an airtight detection device according to an embodiment of the utility model;

[0031] Figure 2 for Figure 1 A schematic diagram of a partial structure of an airtight detection device is shown;

[0032] Figure 3 for Figure 2 An enlarged schematic diagram of A of the sealing assembly and the clamp assembly is shown;

[0033] Figure 4 for Figure 3A schematic diagram of a fixture assembly of an airtight testing device is shown;

[0034] Figure 5 for Figure 2 A schematic diagram showing the cooperation between the sealing component and the fixture component of the airtight detection device;

[0035] Figure 6 for Figure 5 An enlarged schematic diagram of B of the marking component of the airtight detection device is shown;

[0036] Figure 7 for Figure 1 An enlarged schematic diagram of C of the sliding component of the airtight detection device is shown.

[0037] Reference numerals:

[0038] Workpiece 1;

[0039] Frame 10; workbench 11;

[0040] Clamp assembly 20; mounting area 21; fixing plate 22; second sealing member 221; positioning member 23;

[0041] Sealing assembly 30; sealing mechanism 31; push rod 311; first sealing member 312; first driving member 313; buffer mechanism 314; guide structure 3141; buffer member 3142;

[0042] Marking assembly 40; mounting plate 41; second driving member 42; connecting member 421; marking member 43;

[0043] Sliding assembly 50; sliding platform 51; sliding mechanism 52;

[0044] Inflating mechanism 60. DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0048] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0049] Reference Figures 1 to 3 According to the airtightness detection device of the embodiment of the utility model, the airtightness detection device is used to detect the airtightness of the workpiece 1, and the airtightness detection device includes a frame 10, a fixture assembly 20, a sealing assembly 30 and a detection assembly. The frame 10 has a workbench 11; the clamp assembly 20 is arranged on the workbench 11, the clamp assembly 20 is used to clamp and fix the workpiece 1, the clamp assembly 20 has an installation area 21, and the workpiece 1 is fixed in the installation area 21; the sealing assembly 30 is arranged on the workbench 11 and is located on the peripheral side of the workpiece 1, the sealing assembly 30 is used to seal the opening on the workpiece 1, the sealing assembly 30 includes a plurality of sealing mechanisms 31, the sealing mechanisms 31 are arranged on the workbench 11, the sealing mechanisms 31 include a movable abutting rod 311, the abutting top end of the abutting rod 311 abuts on the workpiece 1, and the abutting top end of the sealing mechanism 31 is provided with a first sealing member 312, and the first sealing member 312 is used to seal the opening of the workpiece 1; the detection assembly is movably arranged on the workbench 11 and is located on one side of the workpiece 1, the detection assembly is used to detect the airtightness of the workpiece 1, the detection assembly includes a detection mechanism, the detection end of the detection mechanism abuts against the workpiece 1, and the detection mechanism is used to detect the airtightness inside the workpiece 1.

[0050] Specifically, the device mainly includes a frame 10, a fixture assembly 20, a sealing assembly 30 and a detection assembly. The frame 10 serves as a supporting structure of the entire device and has a stable workbench 11. The workbench 11 is used to carry the fixture assembly 20, the sealing assembly 30 and the detection assembly, and ensure the stability and accuracy of these components during operation. The fixture assembly 20 is arranged on the workbench 11, and its main function is to clamp and fix the workpiece 1 to be tested. The fixture assembly 20 is designed with a special installation area 21, and the workpiece 1 is fixed in the installation area 21 for subsequent air tightness testing. The design of the fixture assembly 20 should ensure that workpieces 1 of various shapes and sizes can be firmly fixed, while facilitating operators to quickly install and disassemble. The sealing assembly 30 is also arranged on the workbench 11 and is located on the peripheral side of the workpiece 1. Its main function is to seal the opening on the workpiece 1 to ensure the accuracy of air tightness testing. The sealing assembly 30 is composed of a plurality of sealing mechanisms 31, each of which is arranged on the workbench 11. The core component of the sealing mechanism 31 is a movable abutting rod 311, and a first sealing member 312 is provided at its abutting top. When the abutting top of the abutting rod 311 abuts against the workpiece 1, the first sealing member 312 can effectively seal the opening of the workpiece 1 to prevent gas leakage. The detection component can be movably arranged on the workbench 11 and is located on one side of the workpiece 1. Its main function is to detect the air tightness of the workpiece 1. The detection component includes a detection mechanism (not shown in the figure), and its detection end can abut against the workpiece 1 to detect the air tightness inside the workpiece 1. The detection mechanism can use high-precision equipment such as a differential pressure sensor, a gas flow meter or an airtightness detector to ensure the accuracy and reliability of the detection results.

[0051] When using this device for air tightness testing, the operator first needs to fix the workpiece 1 to be tested in the installation area 21 of the fixture assembly 20. Then, through the abutting rod 311 of the sealing assembly 30, the first sealing member 312 is tightly fitted on the opening of the workpiece 1 to ensure that the opening is completely sealed. Finally, by moving the detection mechanism of the detection assembly, the detection end is tightly abutted against the workpiece 1, so as to perform an air tightness test. The device of this embodiment realizes rapid and accurate detection of the air tightness of the workpiece 1 by simplifying the device structure and optimizing the operation process, thereby improving the detection efficiency and quality, and is particularly suitable for air tightness detection of complex workpieces 1 such as engine cylinder heads.

[0052] Therefore, it can be understood that the airtight detection device according to the embodiment of the utility model has at least the following beneficial effects: the workpiece 1 is fixed on the fixture assembly 20, and then the pores on the workpiece 1 are automatically sealed through the plurality of sealing mechanisms 31 on the sealing assembly 30, which can realize the sealing of the pores of the workpiece 1 and replace manual sealing, thereby improving the sealing quality and sealing efficiency. Therefore, the semi-automatic production of the airtight detection device can improve the airtight detection efficiency of the workpiece 1.

[0053] Reference Figure 3 to Figure 4 In some embodiments of the utility model, the fixture assembly 20 includes a fixed plate 22 and a positioning member 23. The fixed plate 22 is arranged on the workbench 11. A second sealing member 221 is arranged on the upper surface of the fixed plate 22. The installation area 21 is located on the fixed plate 22. The second sealing member 221 is located in the installation area 21. The positioning member 23 is installed on the fixed plate 22. A plurality of positioning members 23 are arranged. The installation area 21 is defined between the plurality of positioning members 23. The positioning member 23 is used to limit the workpiece 1.

[0054] The fixed plate 22 is the base part of the fixture assembly 20, and it is firmly set on the workbench 11. The upper surface of the fixed plate 22 may be provided with a second seal 221, which is located in the preset installation area 21. When the workpiece 1 is placed in the installation area 21, the second seal 221 can provide a sealing effect for some workpieces 1 whose bottom surfaces need to be sealed, ensuring that the contact surface between the bottom of the workpiece 1 and the fixed plate 22 has good air tightness. The positioning member 23 is installed on the fixed plate 22 for accurately positioning and limiting the workpiece 1. According to the shape and size of the workpiece 1, a plurality of positioning members 23 can be installed on the fixed plate 22. The installation area 21 is defined between these positioning members 23, ensuring that the workpiece 1 can be accurately placed in the predetermined position and will not move or deviate during the detection process. In actual operation, the operator first places the workpiece 1 in the installation area 21 of the fixed plate 22, and ensures the accuracy and stability of the position of the workpiece 1 through the limiting effect of the positioning member 23. Subsequently, the clamp assembly 20 cooperates with the sealing assembly 30 and the detection assembly to complete the airtightness detection of the workpiece 1 .

[0055] Further, refer to Figure 4In some embodiments of the utility model, the positioning member 23 includes at least one of a positioning column and a positioning block. The positioning column is a cylindrical positioning member 23 that can be vertically mounted on the fixed plate 22 and can be inserted into the positioning hole of the workpiece 1. The height and position of the positioning column are customized according to the specific shape and size of the workpiece 1. When the workpiece 1 is placed in the installation area 21, the positioning column can play a precise limiting role to prevent the workpiece 1 from moving in the horizontal direction. The positioning block is a positioning member 23 with a specific shape and size that can be horizontally mounted on the fixed plate 22. Unlike the positioning column, the positioning block is mainly used to limit the workpiece 1 in a specific direction. By reasonably arranging the position and shape of the positioning block, it can adapt to workpieces 1 of different shapes and sizes to ensure that they are stably placed in the installation area 21. In practical applications, according to the specific needs and characteristics of the workpiece 1, it is possible to choose to use a positioning column, a positioning block or a combination of the two for precise positioning and limiting. This flexible design enables the fixture assembly 20 to adapt to more types of workpieces 1, thereby improving the versatility and practicality of the airtight detection device.

[0056] Reference Figures 2 to 3 as well as Figure 5 In some embodiments of the utility model, the sealing mechanism 31 also includes a first driving member 313 and a buffer mechanism 314. The first driving member 313 is arranged on the workbench 11; the buffer mechanism 314 is arranged on the output end of the first driving member 313, and the push rod 311 is connected to the first driving member 313 through the buffer mechanism 314. The first driving member 313 drives the push rod 311 to move away from or push against the workpiece 1 through the buffer mechanism 314.

[0057] Specifically, the first driving member 313 is arranged on the workbench 11, and is used to provide power to drive the push rod 311 to move. This driving member can be a device that can provide a linear driving force, such as a cylinder, an electric push rod, a hydraulic cylinder, etc. By controlling the action of the first driving member 313, the push rod 311 can be moved away from or against the workpiece 1, thereby controlling the compression and release of the seal. The buffer mechanism 314 is arranged on the output end of the first driving member 313, and its main function is to reduce the impact force generated by the push rod 311 on the workpiece 1 during the action process to avoid damage to the workpiece 1. At the same time, the buffer mechanism 314 can also ensure that the push rod 311 can be more stable when contacting the workpiece 1, thereby improving the sealing effect. The push rod 311 is connected to the first driving member 313 through the buffer mechanism 314, so that the first driving member 313 can smoothly drive the push rod 311 to move through the buffer mechanism 314. In actual operation, when the opening of the workpiece 1 needs to be sealed, the first driving member 313 drives the buffer mechanism 314 and the push rod 311 to move forward, so that the sealing member on the push rod 311 is tightly fitted on the opening of the workpiece 1. When the detection is completed, the first driving member 313 drives the buffer mechanism 314 and the push rod 311 to move backward to release the pressing force on the workpiece 1.

[0058] More specifically, refer to Figure 3 as well as Figure 5 In some embodiments of the utility model, the buffer mechanism 314 includes a guide structure 3141 and a buffer 3142, the buffer 3142 is arranged on the guide structure 3141, and the buffer 3142 moves along the guide direction of the guide structure 3141. The guide structure 3141 is the basic part of the buffer mechanism 314, which mainly guides the movement of the buffer 3142. The guide structure 3141 can be a structure with a guide function such as a guide rail, a slide groove or a telescopic rod, ensuring that the buffer 3142 can move smoothly along a predetermined direction. The buffer 3142 is arranged on the guide structure 3141 and moves along the guide direction of the guide structure 3141. The buffer 3142 can be a spring, a damper or other elements with a buffer function, which are used to absorb the impact force generated by the push rod 311 during the action process to protect the workpiece 1 from damage. At the same time, the buffer 3142 can also ensure that the push rod 311 can be more stable when contacting the workpiece 1, further improving the sealing effect. In actual application, when the first driving member 313 drives the push rod 311 to move forward, the buffer member 3142 is compressed or stretched under the guidance of the guide structure 3141, thereby absorbing the impact force and smoothly pushing the push rod 311 forward. When the push rod 311 needs to retreat, the buffer member 3142 can smoothly return to its original state under the guidance of the guide structure 3141, driving the push rod 311 to retreat.

[0059] Reference Figure 5 to Figure 6In some embodiments of the utility model, the airtight detection device also includes a marking component 40, which is installed on the sealing mechanism 31 through a mounting plate 41. The marking component 40 includes a second driving member 42 and a marking member 43. The second driving member 42 is installed on the mounting plate 41, and the marking member 43 is rotatably installed on the mounting plate 41 through a connecting member 421. The output end of the second driving member 42 is hinged to the connecting member 421, and one end of the connecting member 421 is hinged to the mounting plate 41. The second driving member 42 drives the connecting member 421 to swing with the hinge point on the mounting plate 41 as the rotation center, and the second driving member 42 drives the marking member 43 to make a mark on the workpiece 1.

[0060] Specifically, the marking assembly 40 is mainly composed of a second driving member 42 and a marking member 43. The second driving member 42 is mounted on the mounting plate 41, and its function is to provide power for the movement of the marking member 43. The marking member 43 is rotatably mounted on the mounting plate 41 through the connecting member 421, so that the marking member 43 can flexibly perform the marking operation under the drive of the second driving member 42. The second driving member 42 can be a device that can provide driving force, such as a cylinder and an electric push rod. The second driving member 42 is mounted on the mounting plate 41, and its output end is hinged to the connecting member 421. By controlling the movement of the second driving member 42, the connecting member 421 and the marking member 43 can be accurately driven to swing. One end of the connecting member 421 is hinged to the mounting plate 41, and the other end is hinged to the output end of the second driving member 42. This double-hinged structure enables the connecting member 421 to swing with the hinge point on the mounting plate 41 as the rotation center under the drive of the second driving member 42. The marking member 43 is installed on the connecting member 421 , so it will mark the workpiece 1 as the connecting member 421 swings.

[0061] In actual operation, when the workpiece 1 needs to be marked, the second driving member 42 will drive the connecting member 421 to swing, thereby driving the marking member 43 to make a mark on the workpiece 1. This mark can be used to identify the qualified mark, date, batch number, etc. according to the different marking members 43, so as to facilitate subsequent production and management. The design of the marking component 40 can mark the workpiece 1 quickly and accurately after inspection. This integrated design greatly improves production efficiency and the convenience of product quality traceability. At the same time, since the marking component 40 is installed on the sealing mechanism 31, it does not take up additional working space, making the entire device more compact and efficient.

[0062] Reference Figure 1 as well as Figure 7In some embodiments of the utility model, multiple groups of clamp assemblies 20 and sealing assemblies 30 are provided, and the sealing assemblies 30 are arranged in a one-to-one correspondence with the clamp assemblies 20. The airtightness detection device provided in this embodiment has multiple groups of clamp assemblies 20 and sealing assemblies 30, and the sealing assemblies 30 are arranged in a one-to-one correspondence with the clamp assemblies 20. This design is mainly to meet the needs of simultaneously detecting multiple workpieces 1 and improve the detection efficiency. Specifically, each group of clamp assemblies 20 is used to clamp and fix a workpiece 1, and the corresponding sealing assembly 30 is used to seal the opening on the workpiece 1. The provision of multiple groups of clamp assemblies 20 and sealing assemblies 30 enables the device to perform airtightness detection of multiple workpieces 1 at the same time, thereby greatly improving the detection efficiency.

[0063] Further, refer to Figure 1 as well as Figure 7 In some embodiments of the utility model, the clamp assembly 20 is slidably disposed on the workbench 11 through the sliding assembly 50, the sliding assembly 50 includes a slide 51 and a sliding mechanism 52, the slide 51 is used to install the clamp assembly 20; the sliding mechanism 52 is disposed on the workbench 11, the slide 51 is installed on the output end of the sliding mechanism 52, and the sliding mechanism 52 drives the slide 51 to slide on the workbench 11.

[0064] Specifically, the fixture assembly 20 is slidably disposed on the workbench 11 through the sliding assembly 50. This design is mainly for the convenience of replacing the workpiece 1 during the inspection process. The sliding assembly 50 is mainly composed of a slide 51 and a sliding mechanism 52. The slide 51 is used to install the fixture assembly 20, and the sliding mechanism 52 is disposed on the workbench 11. The slide 51 is installed on the output end of the sliding mechanism 52, and the slide 51 can slide on the workbench 11 through the drive of the sliding mechanism 52. In actual operation, the operator can easily adjust the position of the slide 51 and the fixture assembly 20 by controlling the sliding mechanism 52, thereby achieving precise control of the position of the workpiece 1 and facilitating the fixing of the workpiece 1 on the fixture assembly 20, and also facilitating the replacement of the workpiece 1. This design not only improves the convenience of operation, but also greatly improves the flexibility and adaptability of the device.

[0065] More specifically, in some embodiments of the present invention, referring to Figure 7, the sliding mechanism 52 is a slider and slide rail structure. This structure has the advantages of good stability, high precision, and long life, and can ensure the stability and accuracy of the slide 51 during the sliding process. Specifically, the slider and slide rail structure includes a slider and a slide rail. The slider is installed on the slide 51, and the slide rail is fixed on the workbench 11. By sliding the slider on the slide rail, the position of the slide 51 can be accurately adjusted. In practical applications, the slider and slide rail structure can withstand a large load, and runs smoothly and with high precision, and is very suitable for the sliding assembly 50 in this embodiment. Through the design of this structure, the stability and safety of the fixture assembly 20 and the workpiece 1 during the sliding process can be ensured, thereby further improving the accuracy and reliability of the air tightness detection. It can be understood that in addition to the sliding mechanism 52 and the above-mentioned slider and slide rail structure, it can also be a screw pair structure, which can also achieve accurate adjustment of the position of the slide 51.

[0066] Reference Figures 1 to 3 In some embodiments of the present invention, the detection assembly further includes an inflation mechanism 60 , which is disposed on one side of the sealing mechanism 31 , and an inflation end of the inflation mechanism 60 can abut against an opening of the workpiece 1 .

[0067] The detection assembly in this embodiment also includes an inflation mechanism 60, which is arranged on one side of the sealing mechanism 31, and its inflation end is designed to be able to abut against the opening of the workpiece 1. When the workpiece 1 is fixed by the fixture assembly 20 and the sealing mechanism 31 effectively seals the opening of the workpiece 1, the inflation mechanism 60 comes into play. Specifically, the inflation mechanism 60 includes an inflation pump (not shown in the figure) capable of controlling the gas flow and pressure, and an inflation pipe connected to the inflation pump. The end of the inflation pipe, i.e., the inflation end, is precisely aligned with the opening of the workpiece 1 so that a certain pressure of gas can be filled into the interior of the workpiece 1 when necessary.

[0068] In actual operation, once the workpiece 1 is fixed and sealed, the air filling mechanism 60 starts to work. The air filling pump starts to fill the workpiece 1 with gas through the air filling pipe, so that the internal pressure of the workpiece 1 rises to the preset detection pressure. Subsequently, the detection mechanism monitors the change of the internal pressure of the workpiece 1 to determine whether there is any air leakage in the workpiece 1, thereby completing the air tightness detection.

[0069] This design not only improves the automation of the detection, but also ensures the accuracy and reliability of the detection. The gas filling mechanism 60 can quickly and stably fill the workpiece 1 with gas, providing the necessary conditions for the subsequent air tightness detection. At the same time, since the gas filling end can be pressed against the opening of the workpiece 1, this further ensures the effective injection of gas during the gas filling process, avoiding gas leakage and waste.

[0070] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An airtight detection device, characterized in that: Used to detect the air tightness of workpieces, including: A frame having a workbench; A fixture assembly, the fixture assembly is arranged on the workbench, the fixture assembly is used to clamp and fix the workpiece, the fixture assembly has an installation area, and the workpiece is fixed in the installation area; A sealing assembly, the sealing assembly is arranged on the workbench and located at the peripheral side of the workpiece, the sealing assembly is used to seal the opening on the workpiece, the sealing assembly includes a plurality of sealing mechanisms, the sealing mechanisms are arranged on the workbench, the sealing mechanisms include movable abutting rods, the abutting top end of the abutting rods abuts against the workpiece, the abutting top end of the sealing mechanism is provided with a first sealing member, the first sealing member is used to seal the opening of the workpiece; and A detection component, which can be movably arranged on the workbench and located on one side of the workpiece, is used to detect the airtightness of the workpiece. The detection component includes a detection mechanism, a detection end of the detection mechanism abuts against the workpiece, and the detection mechanism is used to detect the airtightness inside the workpiece.

2. The airtight detection device according to claim 1, characterized in that: The clamp assembly comprises: a fixing plate, the fixing plate being disposed on the workbench, a second sealing member being disposed on an upper surface of the fixing plate, the mounting area being located on the fixing plate, and the second sealing member being located in the mounting area; and A positioning member is installed on the fixing plate, a plurality of the positioning members are provided, and the installation area is defined between the plurality of the positioning members, and the positioning member is used to limit the workpiece.

3. The airtight detection device according to claim 2, characterized in that: The positioning member includes at least one of a positioning column and a positioning block.

4. The airtight detection device according to claim 1, characterized in that: The sealing mechanism also includes: A first driving member, the first driving member is disposed on the workbench; and A buffer mechanism is provided on the output end of the first driving member, the push rod is connected to the first driving member through the buffer mechanism, and the first driving member drives the push rod to move away from or push against the workpiece through the buffer mechanism.

5. The airtight detection device according to claim 4, characterized in that: The buffer mechanism comprises a guide structure and a buffer member, wherein the buffer member is arranged on the guide structure and moves along a guide direction of the guide structure.

6. The airtight detection device according to claim 1, characterized in that: It also includes a marking assembly, which is mounted on the sealing mechanism through a mounting plate, and the marking assembly includes: a second drive member, the second drive member being mounted on the mounting plate, and The marking member is rotatably mounted on the mounting plate via a connecting member, the output end of the second driving member is hinged to the connecting member, one end of the connecting member is hinged to the mounting plate, the second driving member drives the connecting member to swing with the hinge point on the mounting plate as the rotation center, and the second driving member drives the marking member to make a mark on the workpiece.

7. The airtight detection device according to claim 1, characterized in that: The clamp components and the sealing components are both provided in multiple groups, and the sealing components are provided in a one-to-one correspondence with the clamp components.

8. The airtight detection device according to claim 7, characterized in that: The clamp assembly is slidably disposed on the workbench through a sliding assembly, and the sliding assembly includes: a slide table, the slide table being used to mount the fixture assembly; and A sliding mechanism is arranged on the workbench, the slide table is installed on the output end of the sliding mechanism, and the sliding mechanism drives the slide table to slide on the workbench.

9. The airtight detection device according to claim 8, characterized in that: The sliding mechanism is a slider and rail structure.

10. The airtight detection device according to claim 1, characterized in that: The detection component also includes an inflation mechanism, which is arranged on one side of the sealing mechanism, and an inflation end of the inflation mechanism can abut against the opening of the workpiece.

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