Automatic plugging device and air tightness automatic test system

Abstract

The utility model relates to an automatic plugging device and an air tightness automatic test system. The automatic plugging device comprises a transverse movement tool, a positioning tool, a first plugging tool, a vertical movement tool, a second plugging tool and a third plugging tool. The air tightness detection device has the advantages that the positioning tool is moved back and forth through the transverse movement tool, and after the positioning tool reaches an air tightness test station, automatic plugging and automatic air tightness detection are achieved through linkage; the first plugging tool, the second plugging tool and the third plugging tool are utilized to realize automatic high-precision plugging, so that the problem that the installation is not in place is avoided, and the airtightness detection yield is improved; the first plugging tool, the second plugging tool and the third plugging tool are used for plugging in an inserting / clamping mode, the plugging mode is changed, and the phenomenon that a product is crushed due to too large screwing pressure is avoided; manpower consumption is reduced, and the consistency of products is improved.

Description

Technical Field

[0001] This utility model relates to the field of workpiece testing technology, and in particular to an automatic sealing device and an automatic airtightness testing system. Background Technology

[0002] In the automotive engine manufacturing process, cavity sealing and airtightness testing is one of the core processes to ensure engine sealing and reliability. This process, through sealing the engine casing cavities and testing their airtightness, directly relates to whether the engine can effectively prevent liquid and gas leakage during operation, playing a decisive role in the engine's performance stability and service life.

[0003] Currently, most automobile manufacturers still use traditional manual operation methods for the airtightness testing of engine housing cavity sealing. For example... Figure 1 As shown, the specific operating procedure is as follows: First, the worker needs to accurately place the engine product casing onto the positioning fixture based on experience and feel. This step requires a high level of skill from the worker; any deviation in placement will directly affect the installation accuracy of the subsequent sealing heads. Next, the worker needs to manually attach the sealing heads to the openings to be sealed on the product casing one by one. This process requires the worker to operate each one individually, which is not only time-consuming and labor-intensive, but also makes it difficult to accurately control the locking force and position when manually attaching the sealing heads. Due to the differences in the size and position of different sealing openings, workers are prone to misinstalling the sealing heads or applying excessive locking pressure during the operation. Finally, the worker needs to manually press the airtightness test switch to start the testing equipment to perform an airtightness test on the cavity.

[0004] However, this manually-driven process exposes many problems that urgently need to be addressed. From a production efficiency perspective, the manual placement of the outer casing, the individual attachment of the sealing heads, and the manual triggering of tests are cumbersome and lengthy, each step consuming a significant amount of time, resulting in low overall testing efficiency and failing to meet the demands of modern automotive production lines for large-scale, fast-paced production. Regarding sealing performance, manual attachment of the sealing heads makes it difficult to precisely control the attachment torque and position, easily leading to two extreme situations: firstly, insufficient attachment force or misalignment can result in a poor seal between the sealing head and the outer casing, causing leakage during airtightness testing and affecting the accuracy of the results; secondly, excessive attachment force may damage the outer casing or the sealing head, rendering the product unusable. Furthermore, manual operation is significantly affected by individual worker differences. Different workers have different operating habits, force control, and concentration levels, resulting in poor consistency in sealing head installation, leading to unstable sealing performance and low product yield. From a labor cost perspective, the fully manual operation mode requires a large workforce, which not only increases the company's labor costs, but also easily leads to worker fatigue due to the repetitive nature of manual labor, further affecting operational accuracy and production efficiency. With the automotive industry's ever-increasing demands for engine quality control, the existing manual cavity sealing and airtightness testing process has become a key bottleneck restricting the improvement of engine production quality and efficiency. There is an urgent need to introduce new processes with high automation, controllable sealing accuracy, and strong testing stability to solve the current problems of low efficiency, unstable quality, and high labor costs.

[0005] Currently, no effective solutions have been proposed for the problems existing in related technologies, such as low installation efficiency, inability to guarantee stable sealing effect, easy misinstallation of plugs, excessive tightening pressure damaging products, high manpower consumption, poor product consistency, and low yield. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by providing an automatic sealing device and an automatic airtightness testing system, thereby solving problems such as low installation efficiency, inability to guarantee stable sealing effect, easy misinstallation of plugs, excessive tightening pressure damaging products, high manpower consumption, poor product consistency, and low yield in related technologies.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] In a first aspect, an automatic sealing device is provided for sealing a workpiece to enable the workpiece to undergo an airtightness test, comprising:

[0009] A transverse motion fixture, wherein the transverse motion fixture is disposed on a horizontal plane;

[0010] A positioning fixture is provided on the transverse motion fixture and is used to carry the workpiece to be tested and to reciprocate between the workpiece loading / unloading station and the air tightness test station under the action of the transverse motion fixture.

[0011] The first sealing fixture is disposed at the top of the positioning fixture and is used to seal the side of the workpiece to be tested;

[0012] A vertical motion fixture is set on a horizontal plane and located at the airtightness test station;

[0013] The second sealing fixture is disposed on the vertical motion fixture and is used to reciprocate between the initial position and the airtightness test position under the action of the vertical motion fixture to seal the top and side of the workpiece to be tested.

[0014] The third sealing fixture is set on a horizontal plane and located at the airtightness test station, and is used to seal the side of the workpiece to be tested.

[0015] In some embodiments, the lateral motion fixture includes:

[0016] The first lateral motion mechanism is disposed on a horizontal plane and connected to the positioning fixture, and is used to drive the positioning fixture to reciprocate between the workpiece loading / unloading station and the airtightness testing station.

[0017] In some embodiments, the lateral motion fixture further includes:

[0018] At least one first sensing mechanism is disposed at the end of the first transverse motion mechanism for sensing the position of the positioning fixture.

[0019] In some embodiments, the lateral motion tooling further includes:

[0020] At least one first guiding mechanism is provided, which is disposed on the side of the first lateral motion mechanism and connected to the positioning fixture, for improving the motion stability of the positioning fixture.

[0021] In some embodiments, the lateral motion tooling further includes:

[0022] At least one first limiting mechanism is provided at the end of the corresponding first guide mechanism to limit the movement range of the positioning fixture.

[0023] In some embodiments, the positioning fixture includes:

[0024] The first bearing mechanism is disposed on the transverse motion fixture and is used to bear the workpiece to be tested and to reciprocate between the workpiece loading / unloading station and the air tightness test station under the action of the transverse motion fixture.

[0025] At least one first positioning mechanism is disposed on the first bearing mechanism for defining the side of the workpiece to be tested.

[0026] In some embodiments, the positioning fixture further includes:

[0027] At least one second sensing mechanism is disposed on the first bearing mechanism for sensing the workpiece to be tested.

[0028] In some embodiments, the positioning fixture further includes:

[0029] At least one floating lifting mechanism is provided on the first bearing mechanism for floating and lifting the workpiece to be tested.

[0030] In some embodiments, the first plugging fixture includes:

[0031] At least one first transverse blocking mechanism is provided on the positioning fixture and is used to follow the positioning fixture between the workpiece loading / unloading station and the airtightness testing station and to reciprocate along the horizontal direction to block or move away from the workpiece to be tested.

[0032] At least one inclined blocking mechanism is provided on the positioning fixture and is used to follow the positioning fixture between the workpiece loading / unloading station and the airtightness testing station and to reciprocate along the inclined direction to block or move away from the workpiece to be tested.

[0033] At least one first vertical sealing mechanism is provided on the positioning fixture and is used to follow the positioning fixture between the workpiece loading / unloading station and the airtightness testing station and to move along the vertical direction to seal or move away from the workpiece to be tested.

[0034] In some embodiments, the vertical motion fixture includes:

[0035] A vertical motion mechanism, wherein the vertical motion mechanism is disposed on a horizontal plane;

[0036] The second bearing mechanism is connected to the vertical motion mechanism and the second sealing fixture respectively, and is used to drive the second sealing fixture to reciprocate between the initial position and the airtightness test position under the action of the vertical motion mechanism.

[0037] In some embodiments, the vertical motion fixture further includes:

[0038] At least one second guide mechanism is provided, which is disposed on a horizontal plane and is movably connected to the second bearing mechanism to improve the motion stability of the second bearing mechanism.

[0039] In some embodiments, the vertical motion fixture further includes:

[0040] At least one second limiting mechanism is provided, which is disposed on a horizontal plane and located below the second bearing mechanism, for limiting the range of motion of the second bearing mechanism.

[0041] In some embodiments, the vertical motion fixture further includes:

[0042] An identification mechanism, which is positioned on a horizontal plane, is used to identify information about the workpiece to be tested.

[0043] In some embodiments, the second sealing fixture includes:

[0044] The third bearing mechanism is connected to the vertical motion fixture and is used to reciprocate between the initial position and the airtightness test position under the action of the vertical motion fixture.

[0045] The second vertical blocking mechanism is disposed on the third bearing mechanism and is used to follow the third bearing mechanism in reciprocating movement between the initial station and the airtightness test station and to block or move away from the top of the workpiece to be tested.

[0046] At least one second lateral blocking mechanism is provided on the third bearing mechanism for reciprocating between the initial station and the airtightness test station and for reciprocating in the horizontal direction to block or move away from the workpiece to be tested.

[0047] In some embodiments, the third sealing fixture includes:

[0048] A support mechanism is provided on a horizontal plane;

[0049] The second lateral movement mechanism is disposed on the support mechanism;

[0050] The fourth bearing mechanism is disposed on the second transverse motion mechanism and is used to reciprocate in the horizontal direction under the action of the second transverse motion mechanism;

[0051] At least one third lateral blocking mechanism is provided on the fourth bearing mechanism for following the fourth bearing mechanism in reciprocating motion in the horizontal direction and in the horizontal direction to block or move away from the workpiece to be tested.

[0052] In some embodiments, the third sealing fixture further includes:

[0053] At least one third guiding mechanism is provided, which is disposed between the supporting mechanism and the fourth bearing mechanism, and is intended to improve the motion stability of the fourth bearing mechanism.

[0054] In some embodiments, the third sealing fixture further includes:

[0055] At least one buffer mechanism is provided on the support mechanism to limit the range of motion of the second lateral movement mechanism.

[0056] In some embodiments, the third sealing fixture further includes:

[0057] At least one second positioning mechanism is provided on the support mechanism for reciprocating in the vertical direction to abut or move away from the fourth bearing mechanism, thereby stabilizing the fourth bearing mechanism.

[0058] Secondly, an automatic airtightness testing system is provided, comprising:

[0059] The automatic sealing device as described in the first aspect;

[0060] An airtightness testing device is used to perform an airtightness test on a workpiece to be tested after the sealing process has been completed at the automatic sealing device.

[0061] In some of these embodiments, it also includes:

[0062] A gas source delivery device is connected to the first sealing fixture, the vertical motion fixture, the second sealing fixture, and the third sealing fixture, respectively.

[0063] In some of these embodiments, it also includes:

[0064] The control device is connected to the lateral movement fixture, the positioning fixture, the first sealing fixture, the vertical movement fixture, the second sealing fixture, the third sealing fixture, and the airtightness testing device.

[0065] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0066] This utility model discloses an automatic sealing device and an automatic airtightness testing system. It utilizes a lateral motion fixture to move a positioning fixture forward and backward. After the positioning fixture reaches the airtightness testing station, automatic sealing and automatic airtightness testing are achieved through linkage. Automatic high-precision sealing is achieved using a first, second, and third sealing fixture, avoiding improper installation and improving the airtightness testing yield. The first, second, and third sealing fixtures are used for plug-in / clamp-on sealing, changing the sealing method and preventing product damage due to excessive tightening pressure. This reduces labor costs and improves product consistency. Attached Figure Description

[0067] Figure 1 This is a schematic diagram of a positioning fixture used in existing technology for airtightness testing;

[0068] Figures 2-3 This is a schematic diagram of an automatic sealing device according to an embodiment of the present utility model;

[0069] Figure 4 This is a schematic diagram of a transverse motion tooling according to an embodiment of the present utility model;

[0070] Figure 5 This is a schematic diagram of the positioning fixture according to an embodiment of the present utility model;

[0071] Figure 6 This is a schematic diagram of the first sealing tool according to an embodiment of the present utility model;

[0072] Figure 7 This is a schematic diagram of a vertical motion tooling according to an embodiment of the present utility model;

[0073] Figure 8 This is a schematic diagram of the second sealing tool according to an embodiment of the present utility model;

[0074] Figures 9-10 This is a schematic diagram of the third sealing tool according to an embodiment of the present utility model;

[0075] Figure 11 This is a schematic diagram of an automatic airtightness testing system according to an embodiment of the present utility model.

[0076] The reference numerals in the attached drawings are as follows: 100, transverse motion fixture; 110, first transverse motion mechanism; 120, first sensing mechanism; 130, first guiding mechanism; 140, first limiting mechanism;

[0077] 200. Positioning fixture; 210. First bearing mechanism; 220. First positioning mechanism; 230. Second sensing mechanism; 240. Floating lifting mechanism;

[0078] 300. First sealing fixture; 310. First lateral sealing mechanism; 320. Diagonal sealing mechanism; 330. First vertical sealing mechanism;

[0079] 400. Vertical motion fixture; 410. Vertical motion mechanism; 420. Second bearing mechanism; 430. Second guiding mechanism; 440. Second limiting mechanism; 450. Identification mechanism;

[0080] 500. Second sealing fixture; 510. Third bearing mechanism; 520. Second vertical sealing mechanism; 530. Second horizontal sealing mechanism;

[0081] 600. Third sealing fixture; 610. Support mechanism; 620. Second lateral movement mechanism; 630. Fourth bearing mechanism; 640. Third lateral sealing mechanism; 650. Third guiding mechanism; 660. Buffer mechanism; 670. Second positioning mechanism;

[0082] A. Automatic sealing device; B. Air tightness testing device; C. Air source delivery device; D. Control device. Detailed Implementation

[0083] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0084] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0085] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0086] Example 1

[0087] This embodiment relates to the automatic sealing device of this utility model.

[0088] An illustrative embodiment of this utility model, such as Figures 2-3As shown, an automatic sealing device is used to seal a workpiece to enable the workpiece to undergo an airtightness test. It includes a transverse motion fixture 100, a positioning fixture 200, a first sealing fixture 300, a vertical motion fixture 400, a second sealing fixture 500, and a third sealing fixture 600. The transverse motion fixture 100 is positioned on a horizontal plane; the positioning fixture 200 is positioned on the transverse motion fixture 100 and is used to carry the workpiece to be tested and to reciprocate between the workpiece loading / unloading station and the airtightness testing station under the action of the transverse motion fixture 100; the first sealing fixture 300 is positioned at the top of the positioning fixture 200 and is used to seal the side of the workpiece to be tested; the vertical motion fixture 400 is positioned on a horizontal plane and located at the airtightness testing station; the second sealing fixture 500 is positioned on the vertical motion fixture 400 and is used to reciprocate between the initial station and the airtightness testing station under the action of the vertical motion fixture 400 to seal the top and side of the workpiece to be tested; the third sealing fixture 600 is positioned on a horizontal plane and located at the airtightness testing station and is used to seal the side of the workpiece to be tested.

[0089] In this invention, the automatic sealing device is mainly used for automatic sealing and airtightness detection of the cavity of an automobile engine casing.

[0090] In this invention, the workpiece is a car engine casing.

[0091] In this utility model, the workpiece includes several through holes (or through slots), the central axis of at least one through hole (or through slot) is parallel to the horizontal plane, the central axis of at least one through hole (or through slot) is perpendicular to the horizontal plane, and the central axis of at least one through hole (or through slot) is inclined to the horizontal plane.

[0092] The method of using this utility model is as follows:

[0093] At the workpiece loading and unloading station, place the workpiece to be tested on the positioning fixture 200.

[0094] The transverse motion fixture 100 works, driving the positioning fixture 200 to move to the airtightness test station;

[0095] When the positioning fixture 200 reaches the airtightness test station, the vertical motion fixture 400 works, driving the second sealing fixture 500 to move from the initial station to the airtightness test station.

[0096] When the second sealing fixture 500 reaches the airtightness test station, the first sealing fixture 300, the second sealing fixture 500, and the third sealing fixture 600 work to seal the workpiece to be tested.

[0097] After the sealing process is completed, the airtightness test can be performed on the workpiece to be tested.

[0098] After the airtightness test is completed, the first sealing fixture 300, the second sealing fixture 500, and the third sealing fixture 600 are activated to release the workpiece.

[0099] The vertical motion fixture 400 operates to drive the second sealing fixture 500 from the airtightness test station to the initial station;

[0100] When the transverse motion fixture 100 is working, it drives the positioning fixture 200 to move to the workpiece loading and unloading station;

[0101] When the positioning fixture 200 reaches the workpiece loading / unloading station, the workpiece is removed from the positioning fixture 200.

[0102] Repeat the above steps until the airtightness test of all workpieces is completed.

[0103] like Figure 4 As shown, the transverse motion fixture 100 includes a first transverse motion mechanism 110. The first transverse motion mechanism 110 is disposed on a horizontal plane and connected to the positioning fixture 200, and is used to drive the positioning fixture 200 to reciprocate between the workpiece loading / unloading station and the airtightness testing station.

[0104] In this invention, the first lateral motion mechanism 110 is a linear motion module driven by a linear motor. Its working principle is to convert electrical energy into linear motion using the principle of electromagnetic induction. Generally, a linear motor includes a stator and a mover; the stator generates a magnetic field, and the mover achieves linear motion under the influence of the magnetic field.

[0105] In some embodiments, the first lateral motion mechanism 110 includes a first driving element, a first track element, and a first sliding element. The first driving element is disposed on a horizontal plane; the first track element is disposed on a horizontal plane; the first sliding element is slidably connected to the first track element and is also connected to the first driving element and the positioning fixture 200, respectively, for driving the positioning fixture 200 to reciprocate along the first track element between the workpiece loading / unloading station and the airtightness testing station under the action of the first driving element.

[0106] In some of these embodiments, the first driving element is a linear motor.

[0107] In some embodiments, the first track element is a guide rail. As a support structure, it provides a smooth motion track, ensuring that the first sliding element can move precisely in a straight line along a predetermined path.

[0108] In some embodiments, the first sliding element is a slider. It works in conjunction with a first track element (guide rail) to carry the positioning fixture 200 and slide along the first track element (guide rail).

[0109] Furthermore, the transverse motion fixture 100 also includes at least one first sensing mechanism 120. The first sensing mechanism 120 is disposed at the end of the first transverse motion mechanism 110 and is used to sense the position of the positioning fixture 200.

[0110] Specifically, the first sensing mechanism 120 is disposed at the end of the first track element.

[0111] In some embodiments, there are multiple first sensing mechanisms 120. These multiple first sensing mechanisms 120 are distributed at both ends of the first lateral movement mechanism 110. That is, each end of the first lateral movement mechanism 110 is provided with at least one first sensing mechanism 120.

[0112] The first sensing mechanism 120 is detachably connected to the first track element, including but not limited to bolt connections. The purpose of this design is to facilitate adjusting the position of the first sensing mechanism 120 according to different needs, thereby adjusting the range of motion of the first sliding element.

[0113] In some of these embodiments, the first sensing mechanism 120 is a sensor, including but not limited to an encoder, a grating ruler, etc.

[0114] Furthermore, the lateral motion fixture 100 also includes at least one first guide mechanism 130. The first guide mechanism 130 is disposed on the side of the first lateral motion mechanism 110 and connected to the positioning fixture 200, used to improve the motion stability of the positioning fixture 200.

[0115] In some embodiments, there are multiple first guide mechanisms 130. These first guide mechanisms 130 are symmetrically arranged on both sides of the first lateral movement mechanism 110. That is, at least one first guide mechanism 130 is provided on each side of the first lateral movement mechanism 110.

[0116] In some embodiments, the first guide mechanism 130 includes a first auxiliary track element and at least one first auxiliary sliding element. The first auxiliary track element is disposed on a horizontal plane and located on the side of the first track element; the first auxiliary sliding element is slidably connected to the first auxiliary track element and connected to the positioning fixture 200 to improve the motion stability of the positioning fixture 200.

[0117] The dimensions of the first auxiliary track element are matched with the dimensions of the first track element. Generally, the length of the first auxiliary track element is equal to the length of the first track element.

[0118] The distance between the first auxiliary track element and the first track element can be adjusted according to actual needs.

[0119] In some embodiments, the first auxiliary track element is a guide rail. As a support structure, it provides a smooth motion track, ensuring that the first auxiliary sliding element can move precisely in a straight line along a predetermined path.

[0120] The first auxiliary sliding element can be detached and connected to the positioning fixture 200, including but not limited to bolt connections. The purpose of this design is to facilitate the replacement of positioning fixtures 200 of different specifications according to different needs.

[0121] In some embodiments, there are multiple first auxiliary sliding elements. These multiple first auxiliary sliding elements are spaced apart from the first auxiliary track element and are detachably connected to the positioning fixture 200.

[0122] In some embodiments, the first auxiliary sliding element is a slider. It works in conjunction with the first auxiliary track element (guide rail) to support the positioning fixture 200 and slide along the first auxiliary track element (guide rail).

[0123] Furthermore, the transverse motion fixture 100 also includes at least one first limiting mechanism 140. The first limiting mechanism 140 is disposed at the end of the corresponding first guide mechanism 130 and is used to limit the movement range of the positioning fixture 200.

[0124] Specifically, the first limiting mechanism 140 is disposed at the end of the first auxiliary track element.

[0125] The number of first limiting mechanisms 140 matches the number of first guiding mechanisms 130. Generally, the number of first limiting mechanisms 140 is an integer multiple of the number of first guiding mechanisms 130. That is, each first guiding mechanism 130 is provided with at least one first limiting mechanism 140.

[0126] When a plurality of first limiting mechanisms 140 are provided in each first guiding mechanism 130, the plurality of first limiting mechanisms 140 are distributed in the first guiding mechanism 130. That is, each end of the first guiding mechanism 130 is provided with at least one first limiting mechanism 140.

[0127] The first limiting mechanism 140 is detachably connected to the first auxiliary track element, including but not limited to bolt connections. The purpose of this design is to facilitate the adjustment of the position of the first limiting mechanism 140 according to different needs, thereby adjusting the range of motion of the first auxiliary sliding element.

[0128] In some of these embodiments, the first limiting mechanism 140 is a limiting baffle, a limiting block, a bellows cover, etc.

[0129] like Figure 5As shown, the positioning fixture 200 includes a first bearing mechanism 210 and at least one first positioning mechanism 220. The first bearing mechanism 210 is disposed on the transverse motion fixture 100 and is used to bear the workpiece to be tested and to reciprocate between the workpiece loading / unloading station and the airtightness testing station under the action of the transverse motion fixture 100. The first positioning mechanism 220 is disposed on the first bearing mechanism 210 and is used to define the side of the workpiece to be tested.

[0130] Specifically, the first bearing mechanism 210 is disposed on the first lateral movement mechanism 110 (first sliding element).

[0131] The first load-bearing mechanism 210 is detachably connected to the first lateral movement mechanism 110, including but not limited to bolt connections. This design allows for easy adjustment of the specifications of the first load-bearing mechanism 210 to meet different needs.

[0132] In some embodiments, the first bearing mechanism 210 includes a first connecting element, a plurality of first supporting elements, and a first bearing element. The first connecting element is connected to the first lateral movement mechanism 110 (first sliding element); the plurality of first supporting elements are distributed at the top of the first connecting element; the first bearing element is disposed at the top of the plurality of first supporting elements, and a first positioning mechanism 220 is disposed at the top of the first bearing element.

[0133] In some of these embodiments, the first connecting element includes, but is not limited to, a connecting substrate.

[0134] Several first support elements are symmetrically arranged between the first connecting element and the first load-bearing element to form a stable frame structure between the first connecting element and the first load-bearing element.

[0135] In some of these embodiments, the first support element includes, but is not limited to, a support plate.

[0136] In some of these embodiments, the first carrier element includes, but is not limited to, a carrier plate.

[0137] The first positioning mechanism 220 is detachably connected to the first bearing mechanism 210 (first bearing element), including but not limited to bolt connection. The purpose of this design is to facilitate adjustment of the position of the first positioning mechanism 220 according to different needs.

[0138] In some embodiments, there are multiple first positioning mechanisms 220. These multiple first positioning mechanisms 220 are distributed at the top of the first supporting mechanism 210.

[0139] In some of the embodiments, the first positioning mechanism 220 includes, but is not limited to, a positioning baffle, a positioning block, a positioning protrusion, a positioning groove, etc.

[0140] Furthermore, the positioning fixture 200 also includes at least one second sensing mechanism 230. The second sensing mechanism 230 is disposed on the first bearing mechanism 210 and is used to sense the workpiece to be tested.

[0141] The second sensing mechanism 230 is detachably connected to the first bearing mechanism 210 (first bearing element), including but not limited to bolt connection. The purpose of this design is to facilitate adjustment of the position of the first positioning mechanism 220 according to different needs.

[0142] In some embodiments, there are multiple second sensing mechanisms 230. Multiple second sensing mechanisms 230 are distributed at the top of the first supporting mechanism 210.

[0143] In some of these embodiments, the second sensing mechanism 230 includes, but is not limited to, a distance sensor.

[0144] Furthermore, the positioning fixture 200 also includes at least one floating lifting mechanism 240. The floating lifting mechanism 240 is disposed on the first bearing mechanism 210 and is used to float and lift the workpiece to be tested.

[0145] The floating lifting mechanism 240 is detachably connected to the first bearing mechanism 210 (first bearing element), including but not limited to bolted connections. This design allows for easy adjustment of the position of the floating lifting mechanism 240 according to different needs.

[0146] In some embodiments, there are multiple floating lifting mechanisms 240. These multiple floating lifting mechanisms 240 are distributed at the top of the first supporting mechanism 210.

[0147] In some embodiments, the floating lifting mechanism 240 includes a second connecting element, a fixed element, a floating element, and an elastic element. The second connecting element is connected to the first bearing mechanism 210 (first bearing element); the fixed element is connected to both the second connecting element and the first bearing mechanism 210 (first bearing element); the floating element is movably connected to the fixed element and is used to reciprocate along the axial direction of the fixed element under the pressure of the workpiece; the elastic element is disposed between the fixed element and the floating element to provide a rebound force.

[0148] In some embodiments, the second connecting element includes, but is not limited to, a connecting plate and a connecting ring.

[0149] In some embodiments, the longitudinal section of the inner edge of the fixing element is T-shaped. Specifically, the fixing element includes a first floating cavity and a second floating cavity. The first floating cavity is located in the lower-middle position inside the fixing element and is slidably connected to the floating element; the second floating cavity is located in the upper-middle position inside the fixing element, communicates with the first floating cavity, and is slidably connected to the floating element. Furthermore, the radial dimension (e.g., inner diameter) of the second floating cavity is larger than the radial dimension (e.g., inner diameter) of the first floating cavity.

[0150] In some of these embodiments, the fixing element includes, but is not limited to, a fixing sleeve.

[0151] In some embodiments, the floating element has a T-shaped longitudinal section. Specifically, the floating element includes a first floating rod and a second floating rod. The first floating rod is slidably connected to a first floating cavity of the fixed element; the second floating rod is disposed at the top end of the first floating rod and is slidably connected to a second floating cavity of the fixed element. Furthermore, the radial dimension (e.g., outer diameter) of the second floating rod is larger than that of the first floating rod, and the axial dimension (e.g., height) of the second floating rod is smaller than that of the first floating rod. Additionally, the radial dimension (e.g., outer diameter) of the second floating rod is equal to the radial dimension (e.g., inner diameter) of the second floating cavity, and the axial dimension (e.g., height) of the second floating rod is smaller than that of the second floating cavity; the radial dimension (e.g., outer diameter) of the first floating rod is equal to the radial dimension (e.g., inner diameter) of the first floating cavity, and the axial dimension (e.g., height) of the first floating rod is larger than that of the first floating cavity.

[0152] In some of these embodiments, the floating element includes, but is not limited to, a floating rod.

[0153] In some embodiments, the elastic element is disposed inside the second floating cavity and is connected to the second floating rod and the fixed element, respectively.

[0154] In some of these embodiments, the elastic element includes, but is not limited to, a spring.

[0155] like Figure 6As shown, the first sealing fixture 300 includes at least one first horizontal sealing mechanism 310, at least one oblique sealing mechanism 320, and at least one first vertical sealing mechanism 330. The first horizontal sealing mechanism 310 is disposed on the positioning fixture 200 and is used to follow the positioning fixture 200 in reciprocating motion between the workpiece loading / unloading station and the airtightness testing station, as well as in the horizontal direction, to seal or move away from the workpiece to be tested. The oblique sealing mechanism 320 is disposed on the positioning fixture 200 and is used to follow the positioning fixture 200 in reciprocating motion between the workpiece loading / unloading station and the airtightness testing station, as well as in the inclined direction, to seal or move away from the workpiece to be tested. The first vertical sealing mechanism 330 is disposed on the positioning fixture 200 and is used to follow the positioning fixture 200 in anti-corrosion motion between the workpiece loading / unloading station and the airtightness testing station, as well as in the vertical direction, to seal or move away from the workpiece to be tested.

[0156] Specifically, the first lateral blocking mechanism 310 is disposed on the first bearing mechanism 210 (first bearing element); the oblique blocking mechanism 320 is disposed on the first bearing mechanism 210 (first connecting element or first bearing element); and the first vertical blocking mechanism 330 is disposed on the first bearing mechanism 210 (first connecting element or first bearing element).

[0157] In this utility model, the terms "horizontal," "vertical," and "oblique" in the first sealing fixture 300 are used only to distinguish them by their angle relative to the horizontal plane. Generally, "horizontal" means parallel to the horizontal plane, "vertical" means perpendicular to the horizontal plane, and "oblique" means neither parallel nor perpendicular to the horizontal plane.

[0158] In the XYZ three-dimensional coordinate system, the first lateral blocking mechanism 310 can move in the X direction (i.e., only change the X coordinate), or move in the Y direction (i.e., only change the Y coordinate), or move in both the X and Y directions (i.e., change both the X and Y coordinates); the oblique blocking mechanism 320 can move in the X, Y, and Z directions (i.e., change both the X, Y, and Z coordinates); the first vertical blocking mechanism 330 can move in the Z direction (i.e., only change the Z coordinate), or move in both the Y and Z directions (i.e., change both the Y and Z coordinates), or move in both the X and Z directions (i.e., change both the X and Z coordinates).

[0159] The first transverse blocking mechanism 310 is detachably connected to the first supporting mechanism 210, including but not limited to bolted connections. This design allows for easy adjustment of the position of the first transverse blocking mechanism 310 according to different needs.

[0160] In some embodiments, there are multiple first lateral blocking mechanisms 310. These multiple first lateral blocking mechanisms 310 are distributed across the first supporting mechanism 210.

[0161] In this utility model, the first transverse blocking mechanism 310 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0162] In some embodiments, the first lateral blocking mechanism 310 includes a first base element, a second drive element, a second track element, a second sliding element, and a first blocking element. The first base element is disposed on the first support mechanism 210; the first end of the second drive element is connected to the first base element; the second track element is disposed on the first base element; the second sliding element is connected to the second drive element and slidably connected to the second track element; and the first blocking element is disposed at the second end of the second drive element.

[0163] The working principle of the first transverse blocking mechanism 310 is as follows: when the second driving element is working, since the first end of the second driving element and the first base element remain relatively stationary, the main body of the second driving element moves under the cooperation of the second sliding element and the second track element, thereby driving the first blocking element to reciprocate in the horizontal direction.

[0164] In some of these embodiments, the first base element includes, but is not limited to, a mounting base.

[0165] Generally, the second driving element includes a power end and an output end. The output end is connected to the second connecting element (by bolts, snap-fit, plug-in, etc.), and the power end is connected to the first sealing element. When the power end is working, since the output end is stationary relative to the second connecting element, the power end reciprocates in a preset direction, thereby driving the first sealing element to move.

[0166] In some of these embodiments, the second drive element includes, but is not limited to, a cylinder, a motor, etc.

[0167] In some embodiments, the second track element is a guide rail. As a support structure, it provides a smooth motion track, ensuring that the second sliding element can move precisely in a straight line along a predetermined path.

[0168] In some embodiments, the second sliding element is a slider. It works in conjunction with a second track element (guide rail) to carry the second drive element and slide along the second track element (guide rail).

[0169] In some embodiments, there are multiple first blocking elements. These multiple first blocking elements are distributed across the second driving element.

[0170] In some embodiments, the first sealing element includes, but is not limited to, a sealing head. Furthermore, the shape of the first sealing element is not limited and can be circular, rectangular, etc. Additionally, the first sealing element can be a solid structure or a hollow structure.

[0171] When there are multiple first transverse blocking mechanisms 310, if two first transverse blocking mechanisms 310 are adjacent and their directions of movement intersect, the first blocking element of one first transverse blocking mechanism 310 is a hollow structure and the first blocking element of the other first transverse blocking mechanism 310 is a solid structure. The first blocking element with a solid structure can intersect with the first blocking element with a hollow structure, that is, pass through the hollow structure.

[0172] The oblique blocking mechanism 320 is detachably connected to the first bearing mechanism 210, including but not limited to bolted connections. This design allows for easy adjustment of the position of the oblique blocking mechanism 320 according to different needs.

[0173] In some embodiments, there are multiple oblique blocking mechanisms 320. These multiple oblique blocking mechanisms 320 are distributed across the first supporting mechanism 210.

[0174] In this utility model, the oblique blocking mechanism 320 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0175] In some embodiments, the oblique blocking mechanism 320 includes a second base element, a third drive element, a third track element, a third sliding element, and a second blocking element. The second base element is disposed on the first support mechanism 210; the first end of the third drive element is connected to the second base element; the third track element is disposed on the second base element; the third sliding element is connected to the third drive element and slidably connected to the third track element; and the second blocking element is disposed on the second end of the third drive element.

[0176] The working principle of the oblique blocking mechanism 320 is as follows: When the third driving element is working, since the first end of the third driving element and the second base element remain relatively stationary, the main body of the third driving element moves under the cooperation of the third sliding element and the third track element, thereby driving the second blocking element to reciprocate in the horizontal direction.

[0177] In some of these embodiments, the second base element includes, but is not limited to, a mounting base.

[0178] Generally, the third driving element includes a power end and an output end. The output end is connected to the second connecting element (by bolts, snap-fit, plug-in, etc.), and the power end is connected to the second sealing element. When the power end is working, since the output end is stationary relative to the second connecting element, the power end reciprocates in a preset direction, thereby driving the second sealing element to move.

[0179] In some of these embodiments, the third drive element includes, but is not limited to, a cylinder, a motor, etc.

[0180] In some embodiments, the third track element is a guide rail. As a support structure, it provides a smooth motion track, ensuring that the third sliding element can move precisely in a straight line along a predetermined path.

[0181] In some embodiments, the third sliding element is a slider. It works in conjunction with a third track element (guide rail) to carry the third drive element and slide along the third track element (guide rail).

[0182] In some embodiments, there are multiple second blocking elements. These multiple second blocking elements are distributed across the third driving element.

[0183] In some embodiments, the second sealing element includes, but is not limited to, a sealing head. Furthermore, the shape of the second sealing element is not limited and can be circular, rectangular, etc.

[0184] The first vertical blocking mechanism 330 is detachably connected to the first supporting mechanism 210, including but not limited to bolt connections. This design allows for easy adjustment of the position of the first vertical blocking mechanism 330 according to different needs.

[0185] In some embodiments, there are multiple first vertical blocking mechanisms 330. These multiple first vertical blocking mechanisms 330 are distributed and arranged on the first supporting mechanism 210.

[0186] In this utility model, the first vertical blocking mechanism 330 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0187] In some embodiments, the first vertical blocking mechanism 330 includes a third base element, a fourth drive element, a fourth track element, a fourth sliding element, and a third blocking element. The third base element is disposed on the first supporting mechanism 210; the first end of the fourth drive element is connected to the third base element; the fourth track element is disposed on the third base element; the fourth sliding element is connected to the fourth drive element and slidably connected to the fourth track element; and the third blocking element is disposed on the second end of the fourth drive element.

[0188] The working principle of the first vertical blocking mechanism 330 is as follows: When the fourth driving element is working, since the first end of the fourth driving element and the third base element remain relatively stationary, the main body of the fourth driving element moves under the cooperation of the fourth sliding element and the fourth track element, thereby driving the third blocking element to reciprocate in the horizontal direction.

[0189] In some of these embodiments, the third base element includes, but is not limited to, a mounting base.

[0190] Generally, the fourth driving element includes a power end and an output end. The output end is connected to the second connecting element (by bolts, snap-fit, plug-in, etc.), and the power end is connected to the third sealing element. When the power end is working, since the output end is stationary relative to the second connecting element, the power end reciprocates in a preset direction, thereby driving the third sealing element to move.

[0191] In some of these embodiments, the fourth drive element includes, but is not limited to, a cylinder, a motor, etc.

[0192] In some embodiments, the fourth track element is a guide rail. As a support structure, it provides a smooth motion track, ensuring that the fourth sliding element can move precisely in a straight line along a predetermined path.

[0193] In some embodiments, the fourth sliding element is a slider. It works in conjunction with the fourth track element (guide rail) to carry the fourth drive element and slide along the fourth track element (guide rail).

[0194] In some embodiments, there are multiple third blocking elements. These multiple third blocking elements are distributed across the fourth driving element.

[0195] In some embodiments, the third sealing element includes, but is not limited to, a sealing head. Furthermore, the shape of the third sealing element is not limited and can be circular, rectangular, etc.

[0196] like Figure 7 As shown, the vertical motion fixture 400 includes a vertical motion mechanism 410 and a second bearing mechanism 420. The vertical motion mechanism 410 is disposed on a horizontal plane; the second bearing mechanism 420 is connected to the vertical motion mechanism 410 and the second sealing fixture 500 respectively, and is used to drive the second sealing fixture 500 to reciprocate between the initial position and the airtightness test position under the action of the vertical motion mechanism 410.

[0197] Generally, the vertical motion mechanism 410 is connected to the mounting platform via a support structure, or to the top frame structure via a support structure. No restrictions are imposed here.

[0198] In this invention, the vertical motion mechanism 410 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0199] The second load-bearing mechanism 420 is detachably connected to the vertical motion mechanism 410, including but not limited to bolt connections. This design allows for easy adjustment of the specifications of the second load-bearing mechanism 420 to meet different needs.

[0200] In some of these embodiments, the second support mechanism 420 includes, but is not limited to, a support plate.

[0201] Furthermore, the vertical motion fixture 400 also includes at least one second guide mechanism 430. The second guide mechanism 430 is disposed on the horizontal plane and is movably connected to the second support mechanism 420 to improve the motion stability of the second support mechanism 420.

[0202] The bottom end of the second guide mechanism 430 is connected to a horizontal surface (such as a mounting platform), and the top end of the second guide mechanism 430 is connected to a vertical motion mechanism 410 or a support structure.

[0203] In some embodiments, there are multiple second guide mechanisms 430. These multiple second guide mechanisms 430 are distributed around the outside of the vertical motion mechanism 410. For example, the multiple second guide mechanisms 430 are arranged around the vertical motion mechanism 410 as a center.

[0204] In some embodiments, the second guide mechanism 430 includes a guide element and a bearing element. The bottom end of the guide element is connected to a horizontal plane and is movably connected to the second support mechanism 420 to define the direction of movement of the second support mechanism 420. The bearing element is disposed on the second support mechanism 420 and is slidably connected to the guide element.

[0205] In some of these embodiments, the guiding elements include, but are not limited to, guide shafts and guide posts.

[0206] The bearing element is detachably connected to the second load-bearing mechanism 420, for example, by bolt connection or plug connection.

[0207] In some embodiments, the top end of the bearing element protrudes from the top end of the second bearing mechanism 420, and the bottom end of the bearing element protrudes from the bottom end of the second bearing mechanism 420.

[0208] In some of these embodiments, the bearing element includes, but is not limited to, a linear bearing.

[0209] Furthermore, the vertical motion fixture 400 also includes at least one second limiting mechanism 440. The second limiting mechanism 440 is disposed on the horizontal plane and located below the second bearing mechanism 420, and is used to limit the movement range of the second bearing mechanism 420.

[0210] In this utility model, the purpose of setting the second limiting mechanism 440 is to limit the maximum descent position of the second bearing mechanism 420 and prevent damage to the workpiece to be tested.

[0211] In some embodiments, there are multiple second limiting mechanisms 440. These multiple second limiting mechanisms 440 are distributed as follows: For example, there may be two second limiting mechanisms 440, symmetrically arranged on both sides of the second supporting mechanism 420 and located at the midpoint of the width direction of the second supporting mechanism 420; or, there may be two second limiting mechanisms 440, respectively arranged diagonally opposite each other on the second supporting mechanism 420; or, there may be four second limiting mechanisms 440, respectively arranged at the four corners of the second supporting mechanism 420.

[0212] The dimensions of the second limiting mechanism 440 are matched with the dimensions of the second guiding mechanism 430. Generally, the height of the second limiting mechanism 440 is less than the height of the guiding element.

[0213] In some of these embodiments, the second limiting mechanism 440 includes, but is not limited to, a limiting post.

[0214] Furthermore, the vertical motion fixture 400 also includes an identification mechanism 450. The identification mechanism 450 is disposed on the horizontal plane and is used to identify information about the workpiece to be tested.

[0215] In this invention, the information of the workpiece to be tested is a QR code set on the workpiece. This QR code records relevant production information of the workpiece.

[0216] In some embodiments, the identification mechanism 450 includes, but is not limited to, an image sensor, such as a camera.

[0217] like Figure 8 As shown, the second sealing fixture 500 includes a third supporting mechanism 510, a second vertical sealing mechanism 520, and at least one second horizontal sealing mechanism 530. The third supporting mechanism 510 is connected to the vertical motion fixture 400 and is used to reciprocate between the initial position and the airtightness test position under the action of the vertical motion fixture 400. The second vertical sealing mechanism 520 is disposed on the third supporting mechanism 510 and is used to follow the third supporting mechanism 510 in its reciprocating movement between the initial position and the airtightness test position, as well as to seal or move away from the top of the workpiece to be tested. The second horizontal sealing mechanism 530 is disposed on the third supporting mechanism 510 and is used to follow the third supporting mechanism 510 in its reciprocating movement between the initial position and the airtightness test position, as well as in its horizontal reciprocating movement to seal or move away from the workpiece to be tested.

[0218] Specifically, the third support mechanism 510 is connected to the second support mechanism 420.

[0219] In this invention, the terms "horizontal" and "vertical" in the second sealing fixture 500 are used only to distinguish them by their angle relative to the horizontal plane. Generally, "horizontal" means parallel to the horizontal plane, and "vertical" means perpendicular to the horizontal plane.

[0220] In the XYZ three-dimensional coordinate system, the second lateral blocking mechanism 530 can move in the X direction (i.e., only change the X coordinate), move in the Y direction (i.e., only change the Y coordinate), or move in both the X and Y directions (i.e., change both the X and Y coordinates).

[0221] The third load-bearing mechanism 510 is detachably connected to the second load-bearing mechanism 420, including but not limited to bolt connections. This design allows for easy adjustment of the specifications and position of the third load-bearing mechanism 510 according to different needs.

[0222] In some of these embodiments, the third support mechanism 510 includes, but is not limited to, a support plate.

[0223] The second vertical blocking mechanism 520 is detachably connected to the third supporting mechanism 510, including but not limited to bolt connections. This design allows for easy adjustment of the specifications of the second vertical blocking mechanism 520 to meet different needs.

[0224] In some embodiments, the second vertical blocking mechanism 520 includes, but is not limited to, blocking plates, blocking blocks, etc.

[0225] The second lateral blocking mechanism 530 is detachably connected to the third supporting mechanism 510, including but not limited to bolted connections. This design allows for easy adjustment of the position of the second lateral blocking mechanism 530 according to different needs.

[0226] In some embodiments, there are multiple second lateral blocking mechanisms 530. These multiple second lateral blocking mechanisms 530 are distributed across the third supporting mechanism 510.

[0227] In this invention, the second transverse blocking mechanism 530 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0228] In some embodiments, the second lateral blocking mechanism 530 includes a fourth base element, a fifth drive element, a fifth track element, a fifth sliding element, and a fourth blocking element. The fourth base element is disposed on the third bearing mechanism 510; the first end of the fifth drive element is connected to the fourth base element; the fifth track element is disposed on the fourth base element; the fifth sliding element is connected to the fifth drive element and slidably connected to the fifth track element; and the fourth blocking element is disposed on the second end of the fifth drive element.

[0229] The working principle of the second transverse blocking mechanism 530 is as follows: When the fifth driving element is working, since the first end of the fifth driving element and the fourth base element remain relatively stationary, the main body of the fifth driving element moves under the cooperation of the fifth sliding element and the fifth track element, thereby driving the fourth blocking element to reciprocate in the horizontal direction.

[0230] In some of these embodiments, the fourth base element includes, but is not limited to, a mounting base.

[0231] Generally, the fifth driving element includes a power end and an output end. The output end is connected to the second connecting element (by bolts, snap-fit, plug-in, etc.), and the power end is connected to the fourth sealing element. When the power end is working, since the output end is stationary relative to the second connecting element, the power end reciprocates in a preset direction, thereby driving the fourth sealing element to move.

[0232] In some of these embodiments, the fifth drive element includes, but is not limited to, a cylinder, a motor, etc.

[0233] In some embodiments, the fifth track element is a guide rail. As a support structure, it provides a smooth motion track, ensuring that the fifth sliding element can move precisely in a straight line along a predetermined path.

[0234] In some embodiments, the fifth sliding element is a slider. It works in conjunction with the fifth track element (guide rail) to carry the fifth drive element and slide along the fifth track element (guide rail).

[0235] In some embodiments, there are multiple fourth blocking elements. These multiple fourth blocking elements are distributed across the fifth driving element.

[0236] In some embodiments, the fourth sealing element includes, but is not limited to, a sealing head. Furthermore, the shape of the fourth sealing element is not limited and can be circular, rectangular, etc. Additionally, the fourth sealing element can be a solid structure or a hollow structure.

[0237] When there are multiple second transverse blocking mechanisms 530, if two second transverse blocking mechanisms 530 are adjacent and their directions of movement intersect, the fourth blocking element of one second transverse blocking mechanism 530 is a hollow structure and the fourth blocking element of the other second transverse blocking mechanism 530 is a solid structure. The fourth blocking element with a solid structure can intersect with the fourth blocking element with a hollow structure, that is, it can pass through the hollow structure.

[0238] like Figures 9-10As shown, the third sealing fixture 600 includes a support mechanism 610, a second lateral movement mechanism 620, a fourth bearing mechanism 630, and at least one third lateral sealing mechanism 640. The support mechanism 610 is disposed on a horizontal plane; the second lateral movement mechanism 620 is disposed on the support mechanism 610; the fourth bearing mechanism 630 is disposed on the second lateral movement mechanism 620 and is used to reciprocate horizontally under the action of the second lateral movement mechanism 620; the third lateral sealing mechanism 640 is disposed on the fourth bearing mechanism 630 and is used to follow the fourth bearing mechanism 630 in reciprocating horizontally and to reciprocate horizontally to seal or move away from the workpiece to be tested.

[0239] In some embodiments, the support mechanism 610 includes a second support element, a plurality of third support elements, and a fourth support element. The second support element is disposed on a horizontal plane; the plurality of third support elements are distributed at the top of the second support element; the fourth support element is disposed at the top of the plurality of third support elements, and a second lateral movement mechanism 620 is disposed at the top of the fourth support element.

[0240] In some of these embodiments, the second support element includes, but is not limited to, a support plate.

[0241] Several third support elements are symmetrically arranged between the second support element and the fourth support element to form a stable frame structure between the second support element and the fourth support element.

[0242] In some of these embodiments, the third support element includes, but is not limited to, a support plate.

[0243] In some of these embodiments, the fourth support element includes, but is not limited to, a support plate.

[0244] The second lateral movement mechanism 620 is detachably connected to the support mechanism 610 (fourth support element), including but not limited to bolt connection. The purpose of this design is to facilitate adjustment of the position of the second lateral movement mechanism 620 according to different needs.

[0245] In this invention, the second lateral motion mechanism 620 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0246] In some embodiments, the second lateral movement mechanism 620 includes a sixth driving element and a third connecting element. The sixth driving element is disposed on the support mechanism 610; the third connecting element is connected to both the sixth driving element and the fourth bearing mechanism 630, and is used to drive the fourth bearing mechanism 630 to reciprocate in the horizontal direction under the action of the sixth driving element.

[0247] In some of these embodiments, the sixth drive element includes, but is not limited to, a motor, a cylinder, etc.

[0248] In some embodiments, the third connecting element includes, but is not limited to, a connecting plate.

[0249] The fourth load-bearing mechanism 630 is detachably connected to the second lateral movement mechanism 620 (the third connecting element), including but not limited to bolt connections. This design allows for easy adjustment of the specifications and position of the fourth load-bearing mechanism 630 according to different needs.

[0250] In some of these embodiments, the fourth support mechanism 630 includes, but is not limited to, a support plate.

[0251] The third lateral blocking mechanism 640 is detachably connected to the fourth load-bearing mechanism 630, including but not limited to bolt connections. This design allows for easy adjustment of the position of the fourth load-bearing mechanism 630 according to different needs.

[0252] In some embodiments, there are multiple third lateral blocking mechanisms 640. These multiple third lateral blocking mechanisms 640 are distributed within the fourth supporting mechanism 630.

[0253] In this invention, the third transverse blocking mechanism 640 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0254] In some embodiments, the third lateral blocking mechanism 640 includes a fifth base element, a seventh drive element, a sixth track element, a sixth sliding element, and a fifth blocking element. The fifth base element is disposed on the fourth bearing mechanism 630; the first end of the seventh drive element is connected to the fifth base element; the sixth track element is disposed on the fifth base element; the sixth sliding element is connected to the seventh drive element and slidably connected to the sixth track element; and the fifth blocking element is disposed on the second end of the seventh drive element.

[0255] The working principle of the third transverse blocking mechanism 640 is as follows: When the seventh driving element is working, since the first end of the seventh driving element and the fifth base element remain relatively stationary, the main body of the seventh driving element moves under the cooperation of the sixth sliding element and the sixth track element, thereby driving the fifth blocking element to reciprocate in the horizontal direction.

[0256] In some of these embodiments, the fifth base element includes, but is not limited to, a mounting base.

[0257] Generally, the seventh driving element includes a power end and an output end. The output end is connected to the second connecting element (by bolts, snap-fit, plug-in, etc.), and the power end is connected to the fifth sealing element. When the power end is working, since the output end is stationary relative to the second connecting element, the power end reciprocates in a preset direction, thereby driving the fifth sealing element to move.

[0258] In some of these embodiments, the seventh drive element includes, but is not limited to, a cylinder, a motor, etc.

[0259] In some embodiments, the sixth track element is a guide rail. As a support structure, it provides a smooth motion track, ensuring that the sixth sliding element can move precisely in a straight line along a predetermined path.

[0260] In some embodiments, the sixth sliding element is a slider. It works in conjunction with the sixth track element (guide rail) to carry the seventh drive element and slide along the sixth track element (guide rail).

[0261] In some embodiments, there are multiple fifth blocking elements. These multiple fifth blocking elements are distributed across the seventh driving element.

[0262] In some embodiments, the fifth sealing element includes, but is not limited to, a sealing head. Furthermore, the shape of the fifth sealing element is not limited and can be circular, rectangular, etc. Additionally, the fifth sealing element can be a solid structure or a hollow structure.

[0263] When there are multiple third transverse blocking mechanisms 640, if two third transverse blocking mechanisms 640 are adjacent and their directions of movement intersect, the fifth blocking element of one third transverse blocking mechanism 640 is a hollow structure and the fifth blocking element of the other third transverse blocking mechanism 640 is a solid structure. The fifth blocking element with a solid structure can intersect with the fifth blocking element with a hollow structure, that is, it can pass through the hollow structure.

[0264] Furthermore, the third sealing fixture 600 also includes at least one third guiding mechanism 650. The third guiding mechanism 650 is positioned between the support mechanism 610 and the fourth bearing mechanism 630, and its purpose is to improve the movement stability of the fourth bearing mechanism 630.

[0265] The third guide mechanism 650 is detachably connected to the support mechanism 610 and the fourth load-bearing mechanism 630, including but not limited to bolt connections. The purpose of this design is to facilitate adjustment of the position of the third guide mechanism 650 according to different needs.

[0266] In some embodiments, there are multiple third guide mechanisms 650. These multiple third guide mechanisms 650 are distributed between the support mechanism 610 and the fourth bearing mechanism 630.

[0267] In some embodiments, the third guide mechanism 650 includes a second auxiliary track element and at least one second auxiliary sliding element. The second auxiliary track element is disposed on the support mechanism 610 (fourth support element); the second auxiliary sliding element is slidably connected to the second auxiliary track element and connected to the fourth bearing mechanism 630 to improve the motion stability of the fourth bearing mechanism 630.

[0268] In some embodiments, the second auxiliary track element is a guide rail. As a support structure, it provides a smooth motion track, ensuring that the second auxiliary sliding element can move precisely in a straight line along a predetermined path.

[0269] The second auxiliary sliding element can be detachably connected to the fourth load-bearing mechanism 630, including but not limited to bolt connections. The purpose of this design is to facilitate the replacement of different specifications of the fourth load-bearing mechanism 630 according to different needs.

[0270] In some embodiments, there are multiple second auxiliary sliding elements. These multiple second auxiliary sliding elements are spaced apart from the second auxiliary track element and are detachably connected to the fourth support mechanism 630.

[0271] In some embodiments, the second auxiliary sliding element is a slider. It works in conjunction with the second auxiliary track element (guide rail) to support the fourth support mechanism 630 and slide along the second auxiliary track element (guide rail).

[0272] Furthermore, the third sealing fixture 600 also includes at least one buffer mechanism 660. The buffer mechanism 660 is disposed on the support mechanism 610 and is used to limit the range of motion of the second lateral movement mechanism 620.

[0273] Specifically, the buffer mechanism 660 removably abuts against the third connecting element of the second lateral movement mechanism 620 to limit the range of motion of the third connecting element.

[0274] The buffer mechanism 660 is detachably connected to the support mechanism 610 (fourth support element) via means including but not limited to bolt connections. This design allows for easy adjustment of the position of the buffer mechanism 660 according to different needs.

[0275] In some embodiments, the buffer mechanism 660 includes, but is not limited to, buffer baffles, buffer blocks, etc.

[0276] Furthermore, the third sealing fixture 600 also includes at least one second positioning mechanism 670. The second positioning mechanism 670 is disposed on the support mechanism 610 and is used to reciprocate in the vertical direction to abut or move away from the fourth bearing mechanism 630, thereby stabilizing the fourth bearing mechanism 630.

[0277] The second positioning mechanism 670 is detachably connected to the support mechanism 610 (fourth support element) via means including but not limited to bolt connections. This design facilitates adjustment of the position of the buffer mechanism 660 according to different needs.

[0278] In some embodiments, there are multiple second positioning mechanisms 670. These multiple second positioning mechanisms 670 are distributed across the support mechanism 610.

[0279] In this invention, the second positioning mechanism 670 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0280] In some embodiments, the second positioning mechanism 670 includes an eighth driving element, a movable element, and a third positioning element. The eighth driving element is disposed on the support mechanism 610; the movable element is connected to the eighth driving element and is used for reciprocating motion in the vertical direction under the action of the eighth driving element; the third positioning element is disposed on the fourth bearing mechanism 630 and is removably connected to the movable element.

[0281] The working principle of the second positioning mechanism 670 is as follows: under the action of the second lateral movement mechanism 620, the fourth bearing mechanism 630 moves to the designated position, at which time the third positioning element is located directly above the movable element; under the action of the eighth driving element, the movable element moves upward and connects with the third positioning element (such as by plugging), thereby limiting the position of the fourth bearing mechanism 630 and preventing the fourth bearing mechanism 630 from moving.

[0282] In some of these embodiments, the eighth drive element includes, but is not limited to, a motor, a cylinder, etc.

[0283] In some of these embodiments, the moving element includes, but is not limited to, a moving rod.

[0284] In some of these embodiments, the third positioning element includes, but is not limited to, a positioning sleeve.

[0285] The method of using this utility model is as follows:

[0286] At the workpiece loading and unloading station, the workpiece to be tested is placed on the first bearing mechanism 210, and the first positioning mechanism 220 abuts against the side wall of the workpiece.

[0287] The first transverse motion mechanism 110 operates, driving the first bearing mechanism 210 to move to the airtightness test station;

[0288] When the first bearing mechanism 210 reaches the airtightness test station, the first lateral movement mechanism 110 stops working through the first sensing mechanism 120 and / or the first limiting mechanism 140.

[0289] The vertical motion mechanism 410 operates, driving the third bearing mechanism 510 from the initial position to the airtightness test position via the second bearing mechanism 420;

[0290] When the third bearing mechanism 510 reaches the airtightness test station, the vertical movement mechanism 410 is stopped by the second limiting mechanism 440. At this time, the second vertical sealing mechanism 520 seals the top opening of the workpiece to be tested.

[0291] The second transverse motion mechanism 620 operates, driving the fourth bearing mechanism 630 to move to the airtightness test station;

[0292] When the fourth bearing mechanism 630 reaches the airtightness test station, the second lateral movement mechanism 620 stops working through the buffer mechanism 660.

[0293] The second positioning mechanism 670 operates to define the position of the fourth bearing mechanism 630;

[0294] The first transverse blocking mechanism 310, the oblique blocking mechanism 320, the first vertical blocking mechanism 330, the second transverse blocking mechanism 530, and the third transverse blocking mechanism 640 work to block the through holes (slots) on the side of the workpiece to be tested.

[0295] After the sealing process is completed, the airtightness test can be performed on the workpiece to be tested.

[0296] When the airtightness test is completed, the first transverse sealing mechanism 310, the oblique sealing mechanism 320, the first vertical sealing mechanism 330, the second transverse sealing mechanism 530, and the third transverse sealing mechanism 640 operate to move away from the through holes (slots) on the side of the workpiece to be tested.

[0297] The second positioning mechanism 670 is activated, releasing the restriction on the fourth bearing mechanism 630;

[0298] The second lateral movement mechanism 620 and the vertical movement mechanism 410 are activated to reset the fourth bearing mechanism 630 and the second vertical blocking mechanism 520, respectively.

[0299] The first transverse motion mechanism 110 works, driving the first bearing mechanism 210 to move to the workpiece loading and unloading station;

[0300] When the first bearing mechanism 210 reaches the workpiece loading and unloading station, the first transverse motion mechanism 110 stops working through the first sensing mechanism 120 and / or the first limiting mechanism 140.

[0301] Remove the workpiece from the positioning fixture 200;

[0302] Repeat the above steps until the airtightness test of all workpieces is completed.

[0303] The technical effects of this embodiment are as follows: The lateral motion fixture moves the positioning fixture forward and backward. After the positioning fixture reaches the airtightness testing station, automatic sealing and automatic airtightness testing are achieved through linkage. Automatic high-precision sealing is achieved using the first, second, and third sealing fixtures, avoiding improper installation and improving the airtightness testing yield. Insertion / clamping sealing is performed using the first, second, and third sealing fixtures, changing the sealing method and avoiding product damage due to excessive tightening pressure. This reduces labor costs and improves product consistency.

[0304] Example 2

[0305] This embodiment relates to the automatic airtightness testing system of this utility model.

[0306] like Figure 11 As shown, an automatic airtightness testing system includes an automatic sealing device A and an airtightness testing device B as described in Example 1. The airtightness testing device B is located on the side of the automatic sealing device A and is used to supply plugs to the plug feeding fixture 200 of the automatic sealing device A.

[0307] Generally, the airtightness testing device B is located on the side of the plug loading fixture 200.

[0308] In some embodiments, the airtightness testing device B includes, but is not limited to, airtightness testing tools. This is prior art and will not be described further in this invention.

[0309] Furthermore, the automatic airtightness testing system also includes an air supply device C. The air supply device C is connected to the automatic sealing device A.

[0310] Specifically, the gas supply device C is connected to the first lateral blocking mechanism 310, the oblique blocking mechanism 320, the first vertical blocking mechanism 330, the vertical movement mechanism 410, the second lateral blocking mechanism 530, the second lateral movement mechanism 620, the third lateral blocking mechanism 640, and the second positioning mechanism 670.

[0311] In some of these embodiments, the gas supply device C includes, but is not limited to, an air pump.

[0312] Furthermore, the automatic airtightness testing system also includes a control device D. The control device D is connected to both the automatic sealing device A and the airtightness testing device B.

[0313] Specifically, the control device D is connected to the first lateral movement mechanism 110, the first sensing mechanism 120, the first lateral blocking mechanism 310, the oblique blocking mechanism 320, the first vertical blocking mechanism 330, the vertical movement mechanism 410, the identification mechanism 450, the second lateral blocking mechanism 530, the second lateral movement mechanism 620, the third lateral blocking mechanism 640, and the second positioning mechanism 670.

[0314] In addition, the control device D is also connected to the gas supply device C.

[0315] In some of these embodiments, the control device D includes, but is not limited to, a central control unit, a PLC, etc.

[0316] The usage method of this embodiment is basically the same as that of Embodiment 1, and will not be repeated here.

[0317] The technical effects of this embodiment are basically the same as those of Embodiment 1, and will not be repeated here.

[0318] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic sealing device for sealing a workpiece to enable airtightness testing, characterized in that, include: A transverse motion fixture, wherein the transverse motion fixture is disposed on a horizontal plane; A positioning fixture is provided on the transverse motion fixture and is used to carry the workpiece to be tested and to reciprocate between the workpiece loading / unloading station and the air tightness test station under the action of the transverse motion fixture. The first sealing fixture is disposed at the top of the positioning fixture and is used to seal the side of the workpiece to be tested. A vertical motion fixture is set on a horizontal plane and located at the airtightness test station; The second sealing fixture is disposed on the vertical motion fixture and is used to reciprocate between the initial position and the airtightness test position under the action of the vertical motion fixture to seal the top and side of the workpiece to be tested. The third sealing fixture is set on a horizontal plane and located at the airtightness test station, and is used to seal the side of the workpiece to be tested.

2. The automatic occlusion device of claim 1, wherein, The lateral motion fixture includes: A first lateral motion mechanism, disposed on a horizontal plane and connected to the positioning fixture, is used to drive the positioning fixture to reciprocate between the workpiece loading / unloading station and the airtightness testing station; and / or The vertical motion fixture includes: A vertical motion mechanism, wherein the vertical motion mechanism is disposed on a horizontal plane; The second bearing mechanism is connected to the vertical motion mechanism and the second sealing fixture respectively, and is used to drive the second sealing fixture to reciprocate between the initial position and the airtightness test position under the action of the vertical motion mechanism.

3. The automatic occlusion device of claim 2, wherein, The lateral motion fixture also includes: At least one first sensing mechanism, disposed at the end of the first lateral movement mechanism, is used to sense the position of the positioning fixture; and / or The lateral motion fixture also includes: At least one first guiding mechanism is disposed on the side of the first lateral motion mechanism and connected to the positioning fixture, for improving the motion stability of the positioning fixture; and / or The vertical motion fixture also includes: At least one second guide mechanism, disposed on a horizontal plane and movably connected to the second load-bearing mechanism, is used to improve the motion stability of the second load-bearing mechanism; and / or The vertical motion fixture also includes: At least one second limiting mechanism, disposed on a horizontal plane and located below the second bearing mechanism, for limiting the range of motion of the second bearing mechanism; and / or The vertical motion fixture also includes: An identification mechanism, which is positioned on a horizontal plane, is used to identify information about the workpiece to be tested.

4. The autoclosing device of claim 3, wherein The lateral motion fixture also includes: At least one first limiting mechanism is provided at the end of the corresponding first guide mechanism to limit the movement range of the positioning fixture.

5. The automatic occlusion device of claim 1, wherein, The positioning fixture includes: The first bearing mechanism is disposed on the transverse motion fixture and is used to bear the workpiece to be tested and to reciprocate between the workpiece loading / unloading station and the air tightness test station under the action of the transverse motion fixture. At least one first positioning mechanism is disposed on the first bearing mechanism for defining the side of the workpiece to be tested.

6. The automatic occlusion device of claim 5, wherein, The positioning fixture also includes: At least one second sensing mechanism, disposed on the first supporting mechanism, for sensing the workpiece to be tested; and / or At least one floating lifting mechanism is provided on the first bearing mechanism for floating and lifting the workpiece to be tested.

7. The automatic occlusion device of claim 1, wherein, The first sealing fixture includes: At least one first transverse blocking mechanism is provided on the positioning fixture and is used to follow the positioning fixture between the workpiece loading / unloading station and the airtightness testing station and to reciprocate along the horizontal direction to block or move away from the workpiece to be tested. At least one inclined blocking mechanism is provided on the positioning fixture and is used to follow the positioning fixture between the workpiece loading / unloading station and the airtightness testing station and to reciprocate along the inclined direction to block or move away from the workpiece to be tested. At least one first vertical blocking mechanism is disposed on the positioning fixture and is used to follow the positioning fixture in reciprocating motion between the workpiece loading / unloading station and the airtightness testing station, as well as in the vertical direction, to block or move away from the workpiece to be tested; and / or The second sealing fixture includes: The third bearing mechanism is connected to the vertical motion fixture and is used to reciprocate between the initial position and the airtightness test position under the action of the vertical motion fixture. The second vertical blocking mechanism is disposed on the third bearing mechanism and is used to follow the third bearing mechanism in reciprocating movement between the initial station and the airtightness test station and to block or move away from the top of the workpiece to be tested. At least one second lateral blocking mechanism, disposed on the third supporting mechanism, is used to follow the third supporting mechanism in reciprocating motion between the initial station and the airtightness test station, and in reciprocating motion in the horizontal direction to block or move away from the workpiece to be tested; and / or The third sealing fixture includes: A support mechanism is provided on a horizontal plane; The second lateral movement mechanism is disposed on the support mechanism; The fourth bearing mechanism is disposed on the second transverse motion mechanism and is used to reciprocate in the horizontal direction under the action of the second transverse motion mechanism; At least one third lateral blocking mechanism is provided on the fourth bearing mechanism for following the fourth bearing mechanism in reciprocating motion in the horizontal direction and in the horizontal direction to block or move away from the workpiece to be tested.

8. The automatic occlusion device of claim 7, wherein, The third sealing fixture also includes: At least one third guiding mechanism, wherein the third guiding mechanism is disposed between the supporting mechanism and the fourth bearing mechanism, and its purpose is not higher than improving the motion stability of the fourth bearing mechanism; and / or At least one buffer mechanism, disposed on the support mechanism, is used to limit the range of motion of the second lateral movement mechanism; and / or At least one second positioning mechanism is provided on the support mechanism for reciprocating along the vertical direction to abut or move away from the fourth bearing mechanism, thereby stabilizing the fourth bearing mechanism.

9. A hermetically sealed automatic test system, characterized by, include: The automatic sealing device as described in any one of claims 1 to 8; An airtightness testing device is used to perform an airtightness test on a workpiece to be tested after the sealing process has been completed at the automatic sealing device.

10. The hermetic automated test system of claim 9, wherein, Also includes: A gas supply delivery device is connected to the first sealing fixture, the vertical motion fixture, the second sealing fixture, and the third sealing fixture, respectively; and / or The control device is connected to the lateral movement fixture, the positioning fixture, the first sealing fixture, the vertical movement fixture, the second sealing fixture, the third sealing fixture, and the airtightness testing device.

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