Air tightness detection device for welding position
By designing an automated airtightness testing device and utilizing the coordinated movement of the carrier and the blocking component, the problems of cumbersome manual operation and poor compatibility in welding position detection were solved, and efficient and accurate airtightness testing was achieved.
Patent Information
- Application Number
- CN202422910571.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing airtightness detection devices for welding positions have problems such as cumbersome manual operation, large errors, inability to accurately achieve sealing, and poor compatibility, especially when faced with the diversity of different product structures.
An airtightness testing device including a frame, a carrier, a support seat and a blocking component is designed. Automatic and continuous testing is achieved through the coordinated movement of the carrier and the blocking component. Precise opening sealing and fixation are achieved by using components such as the support seat, swing blocking piece, telescopic blocking piece and rotating telescopic pressing piece to adapt to different product structures.
It improves detection efficiency, reduces manual operation errors, achieves compatibility with different products, and ensures the accuracy and reliability of detection results.
Smart Images
Figure CN223332532U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air tightness detection of welding positions, in particular to an air tightness detection device for welding positions. Background Art
[0002] The airtightness of welds is crucial to product performance and safety. Currently, key automotive components such as cylinder blocks, transmission housings, and intake and exhaust pipes are typically manufactured using die-casting processes, followed by machining processes such as drilling, milling, and boring. However, die-cast parts are often prone to quality defects after machining, leading to serious quality issues such as leakage. Therefore, airtightness testing is generally required after machining.
[0003] Currently, weld position detection faces several challenges in its practical implementation. Among them, a lack of process consistency and a heavy reliance on manual operation make the operation cumbersome and complex, inevitably leading to a high number of errors. Some products have openings, but there is a lack of effective solutions for sealing these openings, making it difficult to adapt to the structural diversity of different products. This results in inaccurate sealing during airtightness testing, affecting the accuracy and reliability of test results and limiting the compatibility of the detection device with different products.
[0004] Therefore, there is an urgent need for an airtightness detection device for welding positions to solve the above problems. Utility Model Content
[0005] Based on the above, the purpose of the present invention is to provide an airtightness detection device for a welding position, so as to solve the problems of low efficiency and inability to accurately achieve sealing caused by manual operation.
[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0007] An airtightness detection device for a welding position, comprising:
[0008] The frame body includes a side frame body and a bottom water tank, wherein the top surface of the bottom water tank is provided with an open opening, the inner wall of the open opening encloses the inner cavity of the bottom water tank, and the side frame body is provided on the side of the bottom water tank, and the side frame body is directed toward the side of the bottom water tank and sequentially toward the open opening and the inner cavity of the bottom water tank;
[0009] A carrier is reciprocatingly arranged on the side frame along the side surface of the side frame, the open port and the inner cavity of the bottom water tank, and the carrier is used to carry products;
[0010] A support base is fixed on the carrier, and is used to support the surface of the product;
[0011] The blocking assembly includes a swinging blocking piece, a telescopic blocking piece, a positioning seat, and a rotating and telescopic pressing piece. The swinging blocking piece is arranged on the carrier in a manner that can swing back and forth in the direction of the product opening to block the product. The telescopic blocking piece is arranged on the carrier in a manner that can reciprocate and telescopically block the product in the direction of the product opening. The positioning seat is fixed on the carrier. The rotating and telescopic pressing piece can rotate back and forth and telescopically along the flange of the product to press the product onto the positioning seat.
[0012] As a preferred solution for an airtightness detection device for a welding position, the swinging plug includes a first plug and a flip driver. The flip driver is fixed on the carrier. One end of the first plug is connected to the flip driving end of the flip driver. The other end of the first plug can swing back and forth along the direction of the product opening to block the product opening.
[0013] As a preferred solution for an airtightness detection device for a welding position, the swinging plug includes a connecting rod, a second plug and a first telescopic driver. The first telescopic driver is fixed on the carrier, one end of the connecting rod is movably rotatably set on the first telescopic driver, one end of the second plug is rotationally connected to the telescopic driving end of the first telescopic driver, and the other end of the connecting rod is rotationally connected to the middle part of the second plug.
[0014] As a preferred solution for an airtightness detection device for a welding position, the telescopic plug includes a second telescopic driver and a third plug. The second telescopic driver is fixed on the carrier. One end of the third plug is connected to the telescopic driving end of the second telescopic driver, and the other end of the third plug can swing back and forth along the direction of the product opening to block the product opening.
[0015] As a preferred solution for an airtightness detection device for a welding position, the telescopic plug includes a protective member, a third telescopic driver and a fourth plug. The third telescopic driver is fixed on the carrier. The protective member is symmetrically arranged on the third telescopic driver, and the symmetrical protective member wraps the driving end of the third telescopic driver. There is a gap between the relative inner sides of the symmetrical protective member and the driving end of the third telescopic driver. A matching hole is provided on the driving end of the third telescopic driver. The center plane of the protective member is flush with the center plane of the matching hole. Guide members are symmetrically provided on the fourth plug. The guide members perform telescopic reciprocating motion along the protective member. One end of the fourth plug is connected to the telescopic driving end of the third telescopic driver, and the other end of the fourth plug can swing back and forth along the direction of the product opening to block the product opening.
[0016] As a preferred solution of the air tightness detection device for welding positions, the bottom surface of the bottom water tank is provided with support feet, and the support feet are used to position the frame.
[0017] As a preferred solution for the air tightness detection device for welding positions, a pulley is provided on the bottom surface of the bottom water tank, and the pulley is used to slide the frame, and the height of the pulley is higher than the height of the supporting legs.
[0018] As a preferred solution for the air tightness detection device for welding positions, it also includes: a driving component, which is arranged on the side of the side frame body facing the bottom water tank, and the driving component is connected to the carrier to drive the carrier to reciprocate along the side of the side frame body, the open port and the inner cavity of the bottom water tank.
[0019] As a preferred solution for an airtightness detection device for a welding position, the driving assembly includes a main driving member, a guide rail and a slider. The guide rail is arranged on the side of the side frame body along the side of the side frame body, the open port and the inner cavity direction of the bottom water tank. The slider is slidably connected to the guide rail. The main driving member is arranged on the side frame body and is driven to be connected to the slider. The carrier is fixed to the slider.
[0020] As a preferred solution for the air tightness detection device for welding positions, it also includes a lighting lamp, which is mounted on the top of the side of the side frame facing the bottom water tank, and the lighting lamp shines towards the open port and the inner cavity of the bottom water tank.
[0021] The beneficial effects of the present invention are as follows: the support seat and the blocking component are carried by the carrier to reciprocate along the side of the side frame body, the open mouth and the inner cavity of the bottom water tank. During inspection, the product on the carrier can be immersed from the side frame body to the inner cavity, and then reset from the inner cavity to the side frame body. This not only facilitates intuitive observation of whether the airtightness of the welding position is good, but also realizes the automation and continuity of the inspection process, greatly improves the inspection efficiency, and reduces the tediousness and errors of manual operation; through the coordinated action of the support seat, swing blocking piece, telescopic blocking piece, positioning seat and rotating telescopic pressing piece, the product can be accurately opened, sealed and fixed during the inspection process, adapting to the diversity of product structures and improving the compatibility of the inspection device with different products. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the overall structure of a first direction of an airtightness detection device for a welding position provided by the utility model;
[0023] Figure 2 This is a schematic diagram of the overall structure of the second direction of an airtightness detection device for a welding position provided by the utility model;
[0024] Figure 3 This is a schematic diagram of the overall structure of a driving component in an airtightness detection device for a welding position provided by the utility model;
[0025] Figure 4 This is a schematic diagram of the overall structure of an installation product in an air tightness detection device for a welding position provided by the utility model;
[0026] Figure 5 This is a schematic diagram of the overall structure of a product to be installed in an airtightness detection device for a welding position provided by the utility model;
[0027] Figure 6 This is a schematic diagram of the overall structure of a first type of swing plug in an airtightness detection device for a welding position provided by the utility model;
[0028] Figure 7 This is a schematic diagram of the overall structure of the second swing blocking member in the blocking state of the air tightness detection device for welding position provided by the utility model;
[0029] Figure 8 This is a schematic diagram of the overall structure of the release state of the second swing blocking piece in the air tightness detection device for welding position provided by the utility model.
[0030] Among them, the reference numerals in the figure are: 1, frame; 2, side frame; 3, bottom water tank; 4, open mouth; 5, water pipe; 6, connecting frame; 7, drag chain; 8, limit block; 9, carrier; 10, through port; 11, protective rod; 12, support seat; 13, blocking assembly; 14, swing blocking member; 15, first plug; 16, flip connecting plate; 17, flip blocking member; 18, positioning shaft; 19, positioning hole; 20, matching hole position; 21, flip driver; 22, connecting rod; 23, second plug; 24 , first telescopic drive; 25, telescopic plug; 26, second telescopic drive; 27, third plug; 28, stand; 29, protective member; 30, slot; 31, third telescopic drive; 32, guide member; 33, fourth plug; 34, spacer; 36, support foot; 37, pulley; 38, positioning seat; 39, mounting slot; 40, rotary telescopic clamping member; 41, drive assembly; 42, main drive member; 43, guide rail; 44, slider; 45, lighting; 46, main control box. DETAILED DESCRIPTION
[0031] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.
[0032] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0034] In the description of this embodiment, the terms "up", "down", "left", "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, 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. Therefore, they cannot be understood as limitations on the present invention.
[0035] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0036] In one embodiment of the present invention, Figure 1-8As shown, an air tightness detection device for welding positions is provided, including a frame body 1, a carrier 9, a support seat 12 and a plugging assembly 13. The frame body 1 includes a side frame body 2 and a bottom water tank 3. The top surface of the bottom water tank 3 is provided with an open port 4. The inner wall of the open port 4 forms the inner cavity of the bottom water tank 3. The side frame body 2 is arranged on the side of the bottom water tank 3. The side frame body 2 is guided to the open port 4 and the inner cavity of the bottom water tank 3 in sequence toward the side of the bottom water tank 3; the carrier 9 is arranged on the side frame body 2 so as to be reciprocating along the side of the side frame body 2, the open port 4 and the inner cavity of the bottom water tank 3. The carrier 9 is used to carry products; the support seat 12 is fixed on the carrier 9. 12 is used to support the surface of the product; the blocking assembly 13 includes a swinging blocking piece 14, a telescopic blocking piece 25, a positioning seat 38, and a rotating and telescopic pressing piece 40. The swinging blocking piece 14 is arranged on the carrier 9 in a blocking manner that can swing back and forth along the opening direction of the product, the telescopic blocking piece 25 is arranged on the carrier 9 in a blocking manner that can reciprocate and telescopically along the opening direction of the product, the positioning seat 38 is fixed on the carrier 9, and the rotating and telescopic pressing piece 40 can be rotated and telescopically reciprocated along the flange of the product to press the product onto the positioning seat 38.
[0037] The air tightness detection device for the welding position provided in this embodiment carries the support seat 12 and the blocking assembly 13 on the carrier 9 and reciprocates along the side of the side frame body 2, the open mouth 4 and the inner cavity of the bottom water tank 3. During the detection, the product on the carrier 9 can be immersed from the side frame body 2 to the inner cavity, and then reset from the inner cavity to the side frame body 2. It is not only convenient for intuitively observing whether the air tightness of the welding position is good, but also realizes the automation and continuity of the detection process, greatly improves the detection efficiency, and reduces the tediousness and errors of manual operation; through the coordinated action of the support seat 12, the swing blocking piece 14, the telescopic blocking piece 25, the positioning seat 38 and the rotating telescopic pressing piece 40, the precise opening sealing and fixation of the product during the detection process are achieved, adapting to the diversity of product structures and improving the compatibility of the detection device with different products.
[0038] Among them, the swing plug 14 and the telescopic plug 25 can be flexibly adjusted according to the shape and size of the product opening, effectively blocking the opening to prevent gas leakage and ensure the detection sealing; the positioning seat 38 provides an accurate positioning reference to ensure the correct position of the product on the carrier 9 and the detection consistency; the rotating telescopic clamping piece 40 firmly presses the product to the positioning seat 38, enhances the sealing and avoids inaccurate results caused by product shaking and displacement during detection.
[0039] Preferably, a plurality of openings 10 are provided on the carrier 9 for water to pass through smoothly. When soaking the product, water can quickly and evenly penetrate into the product area on the carrier 9 through these openings 10, thereby achieving the purpose of quickly soaking the product.
[0040] Preferably, a plurality of protective rods 11 can be provided on the carrier 9, and the protective rods 11 stand on the edge of the carrier 9. The height of the protective rods 11 is higher than the height of the support seat 12 and the height of the blocking assembly 13, so as to buffer the impact force of water and protect the products immersed in water, thereby improving the accuracy of product detection while also improving the reliability of product protection.
[0041] Specifically, a mounting slot 39 is provided on the positioning seat 38. When the product is positioned on the mounting slot 39, the inner wall of the mounting slot 39 can cover the mounting opening of the product, thereby improving the sealing of the product opening and increasing the reliability of the product airtightness detection.
[0042] Specifically, the surface of the support base 12 is set to be an arc-shaped surface to adapt to the surface of the product. Of course, in some embodiments, to adapt to the surface of the product, the surface of the support base 12 can be other shapes, such as a plane or a wave shape.
[0043] Preferably, the swinging plug 14 includes a first plug 15 and a tilting actuator 21. Specifically, the tilting actuator 21 can be composed of a tilting cylinder, and the model of the tilting cylinder can be selected according to the product requirements. The tilting actuator 21 is fixed to the carrier 9. One end of the first plug 15 is connected to the tilting drive end of the tilting actuator 21, and the other end of the first plug 15 can swing back and forth in the direction of the product opening to block the product opening.
[0044] Specifically, the first plug 15 includes a flip connecting plate 16 and a flip blocking member 17. The flip connecting plate 16 is fixedly connected to the flip driving end of the flip driver 21 through a positioning shaft 18. The positioning shaft 18 can perform active rotational motion at the flip driving end of the flip driver 21, and the flip connecting plate 16 is fixedly connected to the positioning shaft 18; the connecting portion of the flip blocking member 17 is provided with a plurality of positioning holes 19, and the flip connecting plate 16 is provided with matching holes for fastening with the positioning holes 19 (such as screws). When the flip blocking member 17 needs to be adjusted, the positioning holes 19 at appropriate positions can be selected to connect with the matching holes, thereby reducing the deviation of the opening of the blocked product and improving the adaptability with the product.
[0045] The positioning shaft 18 may be diamond-shaped to facilitate connection and fixation with the flip connecting plate 16, avoid disconnection, ensure flip consistency and tight connection between the flip driving end and the flip connecting plate 16, and thus ensure a tight seal for product matching. Of course, in other embodiments, the positioning shaft 18 may be shaped in other shapes, such as rectangular or hexagonal.
[0046] Preferably, the swing plug 14 includes a connecting rod 22, a second plug 23, and a first telescopic actuator 24. The first telescopic actuator 24 is fixed to the carrier 9. One end of the connecting rod 22 is rotatably mounted on the first telescopic actuator 24. One end of the second plug 23 is rotatably connected to the telescopic drive end of the first telescopic actuator 24, and the other end of the connecting rod 22 is rotatably connected to the middle portion of the second plug 23. The second plug 23 is flexibly swung by the first telescopic actuator 24 and the connecting rod 22, thereby sealing the product and effectively blocking the opening to prevent gas leakage. When in use, this swing plug 14 can also be used in conjunction with the above-mentioned swing plug 14, improving the device's good compatibility and synergy with product sealing.
[0047] Preferably, the telescopic plug 25 includes a second telescopic actuator 26 and a third plug 27. The second telescopic actuator 26 is fixed to the carrier 9. One end of the third plug 27 is connected to the telescopic drive end of the second telescopic actuator 26. The other end of the third plug 27 can swing back and forth in the direction of the product opening to block the product opening. For some products with an inclined opening, a stand 28 can be provided on the carrier 9. The second telescopic actuator 26 is fixed at an angle to the stand 28, which facilitates the other end of the third plug 27 to reciprocate and telescopically block the product opening in the direction of the inclined opening.
[0048] Preferably, the telescopic plug 25 includes a protective member 29, a third telescopic driver 31 and a fourth plug 33, and the third telescopic driver 31 is fixed on the carrier 9. The telescopic plug 25 can be mixed with the above-mentioned telescopic plug 25 according to product needs.
[0049] Specifically, the protective member 29 is symmetrically arranged on the third telescopic actuator 31, and the symmetrical protective member 29 covers the driving end of the third telescopic actuator 31, which is beneficial for the symmetrical protective member 29 to protect the driving end product and the matching position of the third telescopic actuator 31.
[0050] More specifically, there is a gap 34 between the opposite inner sides of the symmetrical guard 29 and the driving end of the third telescopic actuator 31 . The gap 34 facilitates the product to be placed into the gap 34 in a direction perpendicular to the symmetrical guard 29 .
[0051] Furthermore, a mating hole 20 is provided on the driving end of the third telescopic actuator 31. The mating hole 20 is used to mate with a fastener (such as a screw) on the opening of the product. The center surface of the protective member 29 is flush with the center surface of the mating hole 20. The protective member 29 can block the fastener on the mating hole 20 to prevent the fluctuating water flow from impacting the fastener, thereby improving the accuracy and reliability of measuring the air density of the product while also enhancing the protection of the product.
[0052] Furthermore, a guide member 32 is symmetrically provided on the driving end of the fourth plug 33 or the third telescopic actuator 31. The guide member 32 may be in the form of an elongated strip. A slot 30 may be provided on the protective member 29. The guide member 32 can extend into the slot 30 and reciprocate along the slot 30. This effectively prevents instability such as deviation, shaking, or rotation of the driving end during extension and retraction. This allows the third telescopic actuator 31 to precisely control the motion trajectory of the connected fourth plug 33, thereby accurately reaching the product opening position for plugging.
[0053] Furthermore, one end of the fourth plug 33 is connected to the telescopic driving end of the third telescopic driver 31, and the other end of the fourth plug 33 can swing back and forth along the product opening direction to block the product opening, so that the fourth plug 33 has flexible adaptability and can tightly seal the openings of different products, ensuring effective leakage prevention during air tightness testing and improving detection accuracy and efficiency.
[0054] Preferably, the bottom surface of the bottom water tank 3 is provided with support feet 36, which are used to position the frame 1. Support feet 36 are used to position the frame 1, ensuring its stability and ensuring the accuracy and reliability of the detection device when operating in a fixed position. Specifically, the bottom surface of the bottom water tank 3 is provided with pulleys 37, which are used to slide the frame 1. The height of the pulleys 37 is higher than that of the support feet 36. When the device needs to be moved, the pulleys 37 can be operated to first roll out of the groove in the ground, and then the frame 1 can be pushed or pulled, thereby improving the flexibility and adaptability of the device.
[0055] The air tightness detection device for welding positions also includes a lighting lamp 45, which is mounted on the top of the side of the side frame 2 facing the bottom water tank 3. The lighting lamp 45 shines on the open mouth 4 and the inner cavity of the bottom water tank 3. When the operator places, adjusts and observes the product during the inspection process, the lighting lamp 45 provides sufficient and bright light.
[0056] This air tightness detection device for welding positions also includes a main control box 46. The main driving component 42, the swing blocking component 14, the telescopic blocking component 25 and the rotating telescopic pressing component 40 can all be electrically connected to the main control box 46, so that the entire air tightness detection device can be operated automatically and intelligently, thereby improving the detection efficiency and accuracy.
[0057] The airtightness testing device for welding positions further includes a drive assembly 41 disposed on the side of the side frame 2 facing the bottom water tank 3. The drive assembly 41 is drivably connected to the carrier 9 to drive the carrier 9 to reciprocate along the side of the side frame 2, the open port 4, and the inner cavity of the bottom water tank 3. The reciprocating motion of the carrier 9 driven by the drive assembly 41 realizes automated product transportation, saves labor, and improves work efficiency and effectiveness.
[0058] Specifically, the drive assembly 41 includes a main drive member 42, a guide rail 43, and a slider 44. The guide rail 43 is disposed on the side of the side frame 2, along the side of the side frame 2, the opening 4, and the inner cavity of the bottom water tank 3. The slider 44 is slidably connected to the guide rail 43. The main drive member 42 is disposed on the side frame 2 and is drivingly connected to the slider 44. The carrier 9 is fixedly connected to the slider 44. The main drive member 42 drives the slider 44 to reciprocate along the guide rail 43, thereby enabling the product to reciprocate along the guide rail 43, achieving automated immersion and lifting of the product. The guide rail 43 provides guidance and support for the slider 44, ensuring smooth movement of the slider 44 and preventing positional deviation during movement, thereby improving the stability of the product immersion and lifting process.
[0059] Preferably, the platform 9 is connected to the slider 44 via a connecting frame 6 , thereby improving the stability and accuracy of the movement of the platform 9 .
[0060] Preferably, a drag chain 7 is provided on the side frame body 2, and the drag chain 7 extends along the direction of the side frame body 2, the open mouth 4 and the inner cavity. The drag chain 7 is connected to the carrier 9, which increases the guidance and stability of the movement of the carrier 9.
[0061] Preferably, a limit block 8 is provided on the side frame body 2 for limiting the movement of the platform 9 to ensure that the platform 9 does not exceed a predetermined track or position during operation.
[0062] Preferably, a water pipe 5 is provided at the bottom of the bottom water tank 3 to facilitate drainage or water inflow, thereby conveniently cleaning the bottom water tank 3 and quickly soaking the product, thereby increasing the speed of detecting the air tightness of the product.
[0063] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.
Claims
1. An airtightness detection device for a welding position, characterized in that: include: The frame body includes a side frame body and a bottom water tank, wherein the top surface of the bottom water tank is provided with an open opening, the inner wall of the open opening encloses the inner cavity of the bottom water tank, and the side frame body is provided on the side of the bottom water tank, and the side frame body is directed toward the side of the bottom water tank and sequentially toward the open opening and the inner cavity of the bottom water tank; A carrier is reciprocatingly arranged on the side frame along the side surface of the side frame, the open port and the inner cavity of the bottom water tank, and the carrier is used to carry products; A support base is fixed on the carrier, and is used to support the surface of the product; The blocking assembly includes a swinging blocking piece, a telescopic blocking piece, a positioning seat, and a rotating and telescopic pressing piece. The swinging blocking piece is arranged on the carrier in a manner that can swing back and forth in the direction of the product opening to block the product. The telescopic blocking piece is arranged on the carrier in a manner that can reciprocate and telescopically block the product in the direction of the product opening. The positioning seat is fixed on the carrier. The rotating and telescopic pressing piece can rotate back and forth and telescopically along the flange of the product to press the product onto the positioning seat.
2. The airtightness detection device for welding position according to claim 1, characterized in that: The swinging plug includes a first plug and a flip driver. The flip driver is fixed on the carrier. One end of the first plug is connected to the flip driving end of the flip driver. The other end of the first plug can swing back and forth along the product opening direction to block the product opening.
3. The airtightness detection device for welding position according to claim 1, characterized in that: The swinging plug includes a connecting rod, a second plug and a first telescopic driver. The first telescopic driver is fixed on the carrier. One end of the connecting rod is movably and rotatably set on the first telescopic driver. One end of the second plug is rotationally connected to the telescopic driving end of the first telescopic driver, and the other end of the connecting rod is rotationally connected to the middle part of the second plug.
4. An airtightness detection device for a welding position according to any one of claims 1 to 3, characterized in that: The telescopic plug includes a second telescopic driver and a third plug. The second telescopic driver is fixed on the carrier. One end of the third plug is connected to the telescopic driving end of the second telescopic driver. The other end of the third plug can swing back and forth along the product opening direction to block the product opening.
5. An airtightness detection device for a welding position according to any one of claims 1 to 3, characterized in that: The telescopic blocking member includes a protective member, a third telescopic driver and a fourth plug. The third telescopic driver is fixed on the carrier. The protective member is symmetrically arranged on the third telescopic driver, and the symmetrical protective member covers the driving end of the third telescopic driver. There is a gap between the relative inner sides of the symmetrical protective member and the driving end of the third telescopic driver. The driving end of the third telescopic driver is provided with a matching hole. The center plane of the protective member is flush with the center plane of the matching hole. The fourth plug is symmetrically provided with guide members, and the guide members perform telescopic reciprocating motion along the protective member. One end of the fourth plug is connected to the telescopic driving end of the third telescopic driver, and the other end of the fourth plug can swing back and forth along the product opening direction to block the product opening.
6. An airtightness detection device for a welding position according to any one of claims 1 to 3, characterized in that: The bottom surface of the bottom water tank is provided with supporting feet, and the supporting feet are used to position the frame.
7. The airtightness detection device for welding position according to claim 6, characterized in that: A pulley is provided on the bottom surface of the bottom water tank, and the pulley is used to slide the frame, and the height of the pulley is higher than the height of the supporting legs.
8. An airtightness detection device for a welding position according to any one of claims 1 to 3, characterized in that: Also includes: A driving assembly is arranged on the side of the side frame body facing the bottom water tank, and the driving assembly is connected to the carrier to drive the carrier to reciprocate along the side of the side frame body, the open port and the inner cavity of the bottom water tank.
9. The airtightness detection device for welding position according to claim 8, characterized in that: The driving assembly includes a main driving member, a guide rail and a slider. The guide rail is arranged on the side of the side frame body along the side of the side frame body, the open port and the inner cavity direction of the bottom water tank. The slider is slidably connected to the guide rail. The main driving member is arranged on the side frame body and is driven to be connected to the slider. The carrier is fixed to the slider.
10. An airtightness detection device for a welding position according to any one of claims 1 to 3, characterized in that: It also includes a lighting lamp, which is mounted on the top of the side of the side frame body facing the bottom water tank, and the lighting lamp shines towards the open port and the inner cavity of the bottom water tank.