Automatic air tightness testing device and system

Abstract

The utility model relates to an air tightness automatic testing device and system. The air tightness automatic testing device comprises a positioning unit, a pressing unit, a first plugging unit, at least one second plugging unit, at least one third plugging unit and an air tightness testing unit. The device has the advantages that automatic pressing is carried out through the pressing unit, and the product test consistency is improved; through cooperation of the first plugging unit, the second plugging unit and the third plugging unit, full-automatic plugging is achieved, manual operation is greatly reduced, and the plugging stability is guaranteed; the air tightness testing unit is used for testing, so that the testing efficiency can be improved.

Description

Technical Field

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

[0002] In the automotive engine housing manufacturing industry, cavity airtightness testing is a core process node for ensuring product quality. The current testing process is typically labor-intensive: first, operators manually tighten the fasteners to the gaps in the engine housing; then, the housing is manually assembled. Figure 1 The specialized testing fixture shown is ultimately used by manual activation of the air tightness tester to detect the leakage in the mold cavity.

[0003] This traditional operating model exposes multiple systemic flaws:

[0004] 1) High complexity of sealing interface design: Due to the use of a multi-faceted sealing structure, the assembly process involves a large number of manual calibration and locking operations, which places stringent requirements on the skill and accuracy of the operators. This operation method, which relies on manual experience, makes it difficult to ensure uniform pressure on the sealing interface, and is very likely to cause airtightness failure due to locking torque deviation or positioning error.

[0005] 2) Insufficient tooling reliability: Traditional rigid fasteners are prone to mechanical fatigue during high-frequency loading and unloading processes, and their wear resistance and repeatability are insufficient to meet the demands of large-scale production. Statistics show that frequent replacement of fasteners has become a significant factor affecting overall equipment efficiency (OEE), significantly increasing maintenance costs and downtime.

[0006] 3) High volatility in quality control: The process is highly dependent on manual operation, making test results susceptible to subjective factors such as operator condition and skill level. Data shows that the standard deviation of product airtightness index under manual operation mode is more than 40% higher than that of automated operation, directly leading to limited yield and decreased quality consistency.

[0007] 4) Significant bottlenecks in production efficiency: The sequential operation mode of manual clamping, calibration, and start-up testing results in a lengthy testing cycle at each workstation. Under typical production capacity configurations, a single machine can only complete 6-8 tests per hour, which is insufficient to meet the demands of modern automotive manufacturing for efficient and flexible production. Furthermore, the arbitrariness of manual operation increases the instability risk of the testing process, further restricting overall production efficiency.

[0008] Currently, no effective solutions have been proposed for the problems existing in related technologies, such as complex installation steps, easy air leakage, easy damage to fasteners, high labor costs, poor product consistency, low production efficiency, low product yield, and poor stability. Utility Model Content

[0009] The purpose of this utility model is to address the shortcomings of existing technologies by providing an automatic airtightness testing device and system, thereby solving problems such as complex installation steps, easy air leakage, easy damage to fasteners, high manpower consumption, poor product consistency, low production efficiency, low product yield, and poor stability.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0011] In a first aspect, an automatic airtightness testing device is provided, comprising:

[0012] A positioning unit, which is disposed on a horizontal plane, is used to support the workpiece to be tested;

[0013] A pressing unit is disposed above the positioning unit and is used to move in a vertical direction to press the workpiece to be tested located in the positioning unit;

[0014] The first sealing unit is disposed on the pressing unit and is used to follow the pressing unit to move in the vertical direction to seal the air vent at the top of the workpiece to be tested;

[0015] At least one second sealing unit is provided, which is disposed at the top of the positioning unit and is used to seal the sprue on the side of the workpiece to be tested;

[0016] At least one third sealing unit is provided, which is disposed at the top of the positioning unit and is used to seal the air vent on the side of the workpiece to be tested;

[0017] An airtightness testing unit is disposed on the side of the positioning unit and connected to the positioning unit, and is used to test the airtightness of the workpiece to be tested.

[0018] In some embodiments, the positioning unit includes:

[0019] A base element, wherein the base element is disposed on a horizontal plane, and at least one second sealing unit and at least one third sealing unit are disposed at the top end of the base element;

[0020] A support element is disposed at the top of the base element and is used to support the workpiece to be tested and to form a closed space with the workpiece to be tested;

[0021] At least one positioning element is disposed at the top of the base element and located on the side of the bearing element, for positioning the side of the workpiece to be tested;

[0022] A connector element is disposed on the base element and connected to the bearing element and the airtightness testing unit respectively, for allowing gas to enter the sealed space.

[0023] In some embodiments, the positioning unit further includes:

[0024] At least one position detection element is disposed on the base element and is used to detect whether the workpiece to be tested is placed on the support element.

[0025] In some embodiments, the pressing unit includes:

[0026] A first mounting element, wherein the first mounting element is disposed on a horizontal plane;

[0027] A driving element, wherein the driving element is disposed on the first mounting element;

[0028] A pressing element is disposed on the upper part of the positioning unit and is connected to the driving element and the first sealing unit respectively, and is used to drive the first sealing unit to reciprocate in the vertical direction under the action of the driving element.

[0029] In some embodiments, the pressing unit further includes:

[0030] At least one guide element is connected to the first mounting element and movably connected to the pressing element, for defining the direction of movement of the pressing element;

[0031] At least one bearing element is disposed on the pressing element and slidably connected to the corresponding guide element.

[0032] In some embodiments, the pressing unit further includes:

[0033] At least one limiting element is provided, which is disposed on a horizontal plane and located below the pressing element, for limiting the range of motion of the pressing element.

[0034] In some embodiments, the first blocking unit includes:

[0035] The second mounting element is disposed on the pressing unit and is used to follow the pressing unit in reciprocating motion in the vertical direction;

[0036] A first vertical motion mechanism is disposed on the second mounting element and is used to follow the second mounting element to move in the vertical direction;

[0037] The first sealing mechanism is disposed on the first vertical motion mechanism and is used to follow the first vertical motion mechanism to move in the vertical direction and to move in the vertical direction under the action of the first vertical motion mechanism to seal the air port at the top of the workpiece to be tested.

[0038] In some embodiments, the first blocking unit further includes:

[0039] The first buffer mechanism is disposed between the first vertical movement mechanism and the first blocking mechanism.

[0040] In some embodiments, the first blocking unit further includes:

[0041] At least one second vertical motion mechanism is disposed on the second mounting element and is used to follow the second mounting element to move in the vertical direction;

[0042] At least one marking mechanism is provided on the second vertical motion mechanism for following the second vertical motion mechanism in a vertical direction and moving in a vertical direction under the action of the second vertical motion mechanism to form a mark on the top of the workpiece to be tested.

[0043] In some embodiments, the second blocking unit includes:

[0044] A third mounting element is disposed at the top of the positioning unit;

[0045] A first lateral movement mechanism is disposed on the third mounting element;

[0046] The second sealing mechanism is disposed on the first transverse motion mechanism and is used to move in the horizontal direction under the action of the first transverse motion mechanism to seal the sprue on the side of the workpiece to be tested.

[0047] In some embodiments, the second blocking unit further includes:

[0048] The second buffer mechanism is disposed between the first lateral movement mechanism and the second blocking mechanism.

[0049] In some embodiments, the third plugging unit includes:

[0050] A fourth mounting element is disposed at the top of the positioning unit;

[0051] The second lateral movement mechanism is disposed on the fourth mounting element;

[0052] The third sealing mechanism is disposed in the second transverse motion mechanism and is used to move in the horizontal direction under the action of the second transverse motion mechanism to seal the air port on the side of the workpiece to be tested.

[0053] In some embodiments, the third plugging unit further includes:

[0054] The third buffer mechanism is disposed between the second lateral movement mechanism and the third blocking mechanism.

[0055] In some embodiments, the airtightness testing unit includes:

[0056] A fifth mounting element, which is disposed on a horizontal plane and on the side of the positioning unit;

[0057] An airtightness testing element is disposed on the fifth mounting element and connected to the positioning unit for testing the airtightness of the workpiece to be tested.

[0058] In some of these embodiments, it also includes:

[0059] A base unit is disposed on a horizontal plane, and the top of the base unit is provided with the positioning unit, the pressing unit, and the airtightness testing unit.

[0060] Secondly, an automatic airtightness testing system is provided, characterized in that it includes:

[0061] The automatic airtightness testing device as described in the first aspect;

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

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

[0064] A control device is connected to the automatic airtightness testing device and the air source delivery device, respectively.

[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 airtightness testing device and system. It improves product testing consistency by automatically pressing through a pressing unit; it achieves fully automatic sealing by cooperating with a first sealing unit, a second sealing unit, and a third sealing unit, greatly reducing manual operation and ensuring sealing stability; and it improves testing efficiency by using an airtightness testing unit. Attached Figure Description

[0067] Figure 1 This is a schematic diagram of a vehicle positioning platform based on existing technology;

[0068] Figure 2 This is a schematic diagram of an automatic airtightness testing device according to an embodiment of the present utility model;

[0069] Figure 3 This is a schematic diagram (a) of the positioning unit according to an embodiment of the present utility model;

[0070] Figure 4 This is a schematic diagram (II) of the positioning unit according to an embodiment of the present utility model;

[0071] Figure 5 This is a schematic diagram of the pressing unit according to an embodiment of the present utility model;

[0072] Figure 6 This is a schematic diagram (a) of the first sealing unit according to an embodiment of the present utility model;

[0073] Figure 7 This is a schematic diagram (II) of the first sealing unit according to an embodiment of the present utility model;

[0074] Figure 8 This is a partial cross-sectional view (a) of the first sealing unit according to an embodiment of the present utility model;

[0075] Figure 9 This is a partial cross-sectional view (II) of the first sealing unit according to an embodiment of the present utility model;

[0076] Figure 10 This is a schematic diagram (a) of the second sealing unit according to an embodiment of the present utility model;

[0077] Figure 11 This is a schematic diagram (II) of the second sealing unit according to an embodiment of the present utility model;

[0078] Figure 12 This is a partial cross-sectional view of the second sealing unit according to an embodiment of the present utility model;

[0079] Figure 13 This is a schematic diagram (a) of the third sealing unit according to an embodiment of the present utility model;

[0080] Figure 14 This is a schematic diagram (II) of the third sealing unit according to an embodiment of the present utility model;

[0081] Figure 15 This is a partial cross-sectional view of the third sealing unit according to an embodiment of the present utility model;

[0082] Figure 16This is a schematic diagram of an airtightness testing unit according to an embodiment of the present utility model;

[0083] Figure 17 This is a schematic diagram of an automatic airtightness testing system according to an embodiment of the present utility model.

[0084] The reference numerals in the accompanying drawings are as follows: 100, positioning unit; 101, base element; 102, bearing element; 103, positioning element; 104, connector element; 105, position detection element;

[0085] 200. Pressing unit; 201. First mounting element; 202. Drive element; 203. Pressing element; 204. Guide element; 205. Bearing element; 206. Limiting element;

[0086] 300. First sealing unit; 301. Second mounting element; 302. First vertical movement mechanism; 303. First sealing mechanism; 304. First buffer mechanism; 305. Second vertical movement mechanism; 306. Marking mechanism;

[0087] 400. Second sealing unit; 401. Third mounting element; 402. First lateral movement mechanism; 403. Second sealing mechanism; 404. Second buffer mechanism;

[0088] 500. Third sealing unit; 501. Fourth mounting element; 502. Second lateral movement mechanism; 503. Third sealing mechanism; 504. Third buffer mechanism;

[0089] 600. Air tightness test unit; 601. Fifth mounting element; 602. Air tightness test element;

[0090] 700, base unit;

[0091] A. Automatic airtightness testing device; B. Air source delivery device; C. Control device. Detailed Implementation

[0092] 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.

[0093] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0094] 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.

[0095] Example 1

[0096] This embodiment relates to the automatic airtightness testing device of this utility model.

[0097] An illustrative embodiment of this utility model, such as Figure 2 As shown, an automatic airtightness testing device includes a positioning unit 100, a pressing unit 200, a first sealing unit 300, at least one second sealing unit 400, at least one third sealing unit 500, and an airtightness testing unit 600. The positioning unit 100 is positioned on a horizontal plane and is used to support the workpiece to be tested. The pressing unit 200 is positioned above the positioning unit 100 and is used to move vertically to press the workpiece to be tested located in the positioning unit 100. The first sealing unit 300 is positioned on the pressing unit 200 and is used to follow the pressing unit 200 to move vertically to seal the air vent at the top of the workpiece to be tested. The second sealing unit 400 is positioned at the top of the positioning unit 100 and is used to seal the water vent on the side of the workpiece to be tested. The third sealing unit 500 is positioned at the top of the positioning unit 100 and is used to seal the air vent on the side of the workpiece to be tested. The air tightness testing unit 600 is positioned on the side of the positioning unit 100 and connected to the positioning unit 100, and is used to test the air tightness of the workpiece to be tested.

[0098] In this invention, the automatic airtightness testing device is mainly used for automatic airtightness testing of automotive engine housing cavities.

[0099] In this invention, the workpiece to be tested is a car engine casing.

[0100] The method of using this utility model is as follows:

[0101] Place the workpiece to be tested into the positioning unit 100;

[0102] When the pressing unit 200 is working, it drives the first sealing unit 300 to move downward in the vertical direction until the pressing unit 200 moves to the preset position;

[0103] The first sealing unit 300 operates to seal the air vent located at the top of the workpiece to be tested;

[0104] The second sealing unit 400 operates to seal the sprue located on the side of the workpiece to be tested;

[0105] The third sealing unit 500 operates to seal the air vent located on the side of the workpiece to be tested;

[0106] With all air inlets and water outlets of the workpiece to be tested sealed, the air tightness testing unit 600 operates to perform an air tightness test on the cavity formed by the workpiece to be tested and the positioning unit 100 (including the air filling process, the pressure holding process, and the air release process).

[0107] After the test is completed, the first sealing unit 300, the second sealing unit 400, and the third sealing unit 500 will work to separate from the air port and water port of the workpiece that has been tested.

[0108] When the pressing unit 200 is working, it drives the first sealing unit 300 to move upward in the vertical direction until the pressing unit 200 moves to the initial position;

[0109] Remove the workpiece that has completed the test.

[0110] like Figures 3-4 As shown, the positioning unit 100 includes a base element 101, a support element 102, at least one positioning element 103, and a connector element 104. The base element 101 is horizontal, and at least one second sealing unit 400 and at least one third sealing unit 500 are provided at its top. The support element 102 is located at the top of the base element 101 and is used to support the workpiece to be tested and to form a sealed space with the workpiece. The positioning element 103 is located at the top of the base element 101 and on the side of the support element 102, and is used to position the side of the workpiece to be tested. The connector element 104 is located on the base element 101 and is connected to the support element 102 and the airtightness testing unit 600, respectively, for allowing gas to enter the sealed space.

[0111] Generally, the base element 101 is a hollow structure. Specifically, the support element 102 is installed at the top of the hollow structure; the connector element 104 is located inside the hollow structure. The purpose of this design is to facilitate the concealment of the connection pipe between the connector element 104 and the airtightness test unit 600.

[0112] In some of these embodiments, the base element 101 includes, but is not limited to, a mounting base or a mounting pedestal.

[0113] The carrier element 102 is detachably connected to the base element 101, for example, by bolt connection.

[0114] Generally, the shape of the support element 102 is similar to that of the workpiece to be tested. Specifically, the support element 102 includes a support platform, at least one support protrusion, and a through groove. The support platform is located at the top of the base element 101; the support protrusion is located at the top of the support platform; the through groove passes through the support platform and connects to the connector element 104. When the workpiece to be tested is placed on the support element 102, the bottom opening of the workpiece is in contact with the support platform, and the side opening of the workpiece is in contact with the support protrusion. A sealed space is formed between the workpiece, the support platform, and the support protrusion, which is used for the airtightness testing unit 600 to perform inflation, pressure holding, and deflation processes.

[0115] In addition, the carrier element 102 may also include a carrier groove. The carrier groove is disposed around the top of the carrier platform and is used to limit the bottom end of the workpiece to be tested.

[0116] In some of these embodiments, the carrier element 102 includes, but is not limited to, a carrier base.

[0117] The positioning element 103 is detachably connected to the base element 101, for example, by bolt connection.

[0118] In some embodiments, there are multiple positioning elements 103. The multiple positioning elements 103 are arranged around the support element 102 and are used to cooperate with the support element 102 to fix the workpiece to be tested, thereby preventing the workpiece to be tested from shifting position.

[0119] In some of these embodiments, the positioning element 103 includes, but is not limited to, a positioning baffle, a positioning block, etc.

[0120] The connector element 104 is detachably connected to the base element 101, for example, by plugging or snapping.

[0121] In some of these embodiments, the connector element 104 includes, but is not limited to, a connecting pipe (such as a bend).

[0122] Furthermore, the positioning unit 100 also includes at least one position detection element 105. The position detection element 105 is disposed on the base element 101 and is used to detect whether the workpiece to be tested is placed on the support element 102.

[0123] The position detection element 105 is detachably connected to the base element 101, for example, by bolt connection or plug-in connection.

[0124] Generally, the position detection element 105 is disposed on the side of the bearing element 102.

[0125] In some embodiments, there are multiple position detection elements 105. These multiple position detection elements 105 are distributed across the base element 101. In this invention, the purpose of providing multiple position detection elements 105 is to prevent false detections.

[0126] In some of these embodiments, the position detection element 105 includes, but is not limited to, a proximity sensor.

[0127] like Figure 5 As shown, the pressing unit 200 includes a first mounting element 201, a driving element 202, and a pressing element 203. The first mounting element 201 is disposed on a horizontal plane; the driving element 202 is disposed on the first mounting element 201; the pressing element 203 is disposed on the upper part of the positioning unit 100 and is connected to the driving element 202 and the first sealing unit 300 respectively, for driving the first sealing unit 300 to reciprocate vertically under the action of the driving element 202.

[0128] Specifically, the pressing element 203 is located on the upper part of the bearing element 102.

[0129] Generally, the first mounting element 201 is a bracket structure. Specifically, the first mounting element 201 includes at least two longitudinal brackets and a transverse bracket. The two longitudinal brackets are vertically arranged and located on both sides of the positioning base element 101; the transverse brackets are connected to the top ends of the two longitudinal brackets and are equipped with driving elements 202.

[0130] In some of these embodiments, the first mounting element 201 includes, but is not limited to, a mounting frame, a mounting support frame, etc.

[0131] The drive element 202 is detachably connected to the first mounting element 201, for example, by bolt connection or plug-in connection.

[0132] In this invention, the driving element 202 can be either electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0133] The pressing element 203 is detachably connected to the driving element 202, for example, by bolt connection.

[0134] The pressing element 203 is located at the lower part of the transverse support of the first mounting element 201 and between the longitudinal supports on both sides. Generally, the pressing element 203 cannot contact the transverse support.

[0135] The dimensions of the pressing element 203 are matched with the dimensions of the first mounting element 201. Generally, the radial dimension (e.g., length, width) of the pressing element 203 is not greater than the radial dimension (e.g., length, width) of the transverse support.

[0136] In some of these embodiments, the pressing element 203 includes, but is not limited to, a pressing plate.

[0137] Furthermore, the pressing unit 200 also includes at least one guide element 204 and at least one bearing element 205. The guide element 204 is connected to the first mounting element 201 and is movably connected to the pressing element 203 to define the movement direction of the pressing element 203; the bearing element 205 is disposed on the pressing element 203 and is slidably connected to the corresponding guide element 204.

[0138] The top end of the guide element 204 is detachably connected to the transverse bracket of the first mounting element 201, for example, by bolt connection or plug-in connection.

[0139] In some embodiments, there are multiple guide elements 204. These guide elements 204 are distributed as follows: For example, there may be two guide elements 204, symmetrically arranged on both sides of the transverse support and located at the midpoint of the width direction of the transverse support; or, there may be two guide elements 204, each arranged diagonally on the transverse support; or, there may be four guide elements 204, each arranged at one of the four corners of the transverse support.

[0140] In some of these embodiments, the guide element 204 includes, but is not limited to, a guide shaft and a guide post.

[0141] The bearing element 205 is detachably connected to the pressing element 203, for example, by bolt connection or plug connection.

[0142] The number of bearing elements 205 matches the number of guide elements 204. Generally, the number of bearing elements 205 is equal to the number of guide elements 204. That is, there is a one-to-one correspondence between bearing elements 205 and guide elements 204.

[0143] The dimensions of bearing element 205 are matched with those of guide element 204. Generally, the inner diameter of bearing element 205 is equal to the diameter of guide element 204, and the height of bearing element 205 is less than the height of guide element 204.

[0144] In some embodiments, the top end of the bearing element 205 protrudes from the top end of the pressing element 203, and the bottom end of the bearing element 205 protrudes from the bottom end of the pressing element 203.

[0145] In some of these embodiments, the bearing element 205 includes, but is not limited to, a linear bearing.

[0146] Furthermore, the pressing unit 200 also includes at least one limiting element 206. The limiting element 206 is disposed on a horizontal plane and located at the lower part of the pressing element 203, and is used to limit the range of motion of the pressing element 203.

[0147] In this invention, the purpose of setting the limiting element 206 is to limit the maximum descent position of the pressing element 203 and prevent excessive pressing from damaging the workpiece to be tested.

[0148] In some embodiments, there are multiple limiting elements 206. These limiting elements 206 are distributed in a specific manner. For example, there may be two limiting elements 206, symmetrically arranged on both sides of the pressing element 203 and located at the midpoint of the width direction of the pressing element 203; or, there may be two limiting elements 206, each positioned diagonally opposite the pressing element 203; or, there may be four limiting elements 206, each positioned at one of the four corners of the pressing element 203.

[0149] The dimensions of the limiting element 206 are matched with the dimensions of the first mounting element 201. Generally, the height of the limiting element 206 is less than the height of the longitudinal support.

[0150] In some of these embodiments, the limiting element 206 includes, but is not limited to, a limiting post.

[0151] like Figures 6-9 As shown, the first sealing unit 300 includes a second mounting element 301, a first vertical movement mechanism 302, and a first sealing mechanism 303. The second mounting element 301 is disposed on the pressing unit 200 and is used to reciprocate vertically following the pressing unit 200; the first vertical movement mechanism 302 is disposed on the second mounting element 301 and is used to move vertically following the second mounting element 301; the first sealing mechanism 303 is disposed on the first vertical movement mechanism 302 and is used to move vertically following the first vertical movement mechanism 302 and under the action of the first vertical movement mechanism 302 to seal the air vent at the top of the workpiece to be tested.

[0152] Specifically, the second mounting element 301 is disposed on the pressing element 203 and is used to follow the pressing element 203 in reciprocating motion in the vertical direction.

[0153] The second mounting element 301 is detachably connected to the pressing element 203, for example, by bolt connection or plug-in connection.

[0154] Generally, the second mounting element 301 is a hollow structure. Specifically, the first vertical motion mechanism 302 is installed inside the hollow structure; the first sealing mechanism 303 is located at the bottom of the hollow structure. The purpose of this design is to facilitate the concealment of the connection pipes between the first vertical motion mechanism 302 and the outside world (such as an air supply device).

[0155] In some of these embodiments, the second mounting element 301 includes, but is not limited to, a mounting bracket.

[0156] The first vertical motion mechanism 302 is detachably connected to the second mounting element 301, for example, by bolt connection or plug-in connection.

[0157] In this invention, the first vertical motion mechanism 302 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0158] In some embodiments, the first vertical motion mechanism 302 is described as being powered by a cylinder. Specifically, the first vertical motion mechanism 302 includes a first vertical main body element, at least one first vertical sliding element, at least one first vertical channel element, at least one first vertical interface element, a second vertical main body element, and at least one second vertical sliding element. The first vertical main body element is disposed on the side of the second mounting element 301; the first vertical sliding element passes through the first vertical main body element; the first vertical channel element passes through the first vertical main body element and is connected to the first vertical sliding element; the first vertical interface element is disposed on the side of the first vertical main body element, the first end of the first vertical interface element is connected to the corresponding first vertical channel element, and the second end of the first vertical interface element is connected to the gas source delivery device; the second vertical main body element is disposed on the side of the first sealing mechanism 303 and is slidably connected to the first vertical main body element, for driving the first sealing mechanism 303 to reciprocate along a preset direction; the second vertical sliding element is disposed on the side of the second vertical main body element and is slidably connected to the first vertical sliding element, for driving the second vertical main body element to reciprocate along a preset direction under the action of the gas source delivery device.

[0159] In some of these embodiments, the first vertical main body element includes, but is not limited to, the sliding block body.

[0160] The first vertical sliding element is disposed inside the first vertical main body element and extends through the bottom end of the first vertical main body element.

[0161] When there are multiple first vertical sliding elements, the multiple first vertical sliding elements are spaced apart along the width direction of the first vertical main element.

[0162] When there are multiple first vertical sliding elements, the outermost first vertical sliding element is connected to the first vertical channel element.

[0163] In some embodiments, the first vertical sliding element includes a first vertical slider and a second vertical slider. The first vertical slider is disposed inside the first vertical main body element; the second vertical slider is disposed inside the first vertical main body element, communicates with the first vertical slider, and extends through the bottom end of the first vertical main body element.

[0164] The dimensions of the second vertical slider are matched with those of the first vertical slider. Generally, the radial dimension (e.g., diameter) of the second vertical slider is smaller than the radial dimension (e.g., diameter) of the first vertical slider, and the axial dimension (e.g., height) of the second vertical slider is smaller than the axial dimension (e.g., height) of the first vertical slider.

[0165] In some of these embodiments, the first vertical sliding element includes, but is not limited to, a movable cavity, a movable groove, etc.

[0166] The first vertical channel element is disposed on the side of the first vertical main body element.

[0167] When there are multiple first vertical channel elements, these elements are distributed on the sides of the first vertical main body element. For example, the multiple first vertical channel elements are spaced apart along the height direction of the first vertical main body element.

[0168] Preferably, there are two first vertical channel elements. One first vertical channel element is disposed near the first end of the first vertical sliding element, and the other first vertical channel element is disposed near the second end of the first vertical sliding element.

[0169] In some of these embodiments, the first vertical channel element includes, but is not limited to, a gas channel.

[0170] The first vertical interface element is detachably connected to the first vertical channel element, including but not limited to plug-in connection, threaded connection, etc.

[0171] The number of first vertical interface elements matches the number of first vertical channel elements. Generally, the number of first vertical interface elements matches the number of first vertical channel elements. Generally, the number of first vertical interface elements is equal to the number of first vertical channel elements, that is, there is a one-to-one correspondence between the first vertical interface elements and the first vertical channel elements.

[0172] In some of these embodiments, the first vertical interface element includes, but is not limited to, a gas interface.

[0173] In some of these embodiments, the second vertical main body element includes, but is not limited to, the movable block body.

[0174] Generally, the second vertical sliding element and the first vertical sliding element are in a non-separable sliding connection.

[0175] The number of second vertical sliding elements matches the number of first vertical sliding elements. Generally, the number of second vertical sliding elements is equal to the number of first vertical sliding elements. That is, there is a one-to-one correspondence between the second and first vertical sliding elements.

[0176] When there are multiple second vertical sliding elements, the multiple second vertical sliding elements are spaced apart along the width direction of the second vertical main element.

[0177] In some embodiments, the second vertical sliding element includes a third vertical sliding member and a fourth vertical sliding member. The third vertical sliding member is disposed on the side of the second vertical main element and connected to the second vertical main element, and is movably connected to the second vertical sliding member of the first vertical sliding element; the fourth vertical sliding member is disposed on the side of the second vertical main element and connected to the third vertical sliding member, and is movably connected to the first vertical sliding member of the first vertical sliding element.

[0178] The dimensions of the third vertical slider are matched with those of the second vertical slider. Generally, the radial dimension (e.g., diameter) of the third vertical slider is not greater than the radial dimension (e.g., diameter) of the second vertical slider, and the axial dimension (e.g., height) of the third vertical slider is greater than the axial dimension (e.g., height) of the second vertical slider.

[0179] The dimensions of the fourth vertical slider are matched with those of the third vertical slider. Generally, the radial dimension (e.g., diameter) of the fourth vertical slider is greater than that of the third vertical slider, and the axial dimension (e.g., height) of the fourth vertical slider is smaller than that of the third vertical slider.

[0180] The dimensions of the fourth vertical slider are matched with those of the first vertical slider. Generally, the radial dimension (e.g., diameter) of the fourth vertical slider is not greater than the radial dimension (e.g., diameter) of the first vertical slider, and the axial dimension (e.g., height) of the fourth vertical slider is less than the axial dimension (e.g., height) of the first vertical slider.

[0181] In some embodiments, the second vertical sliding element includes, but is not limited to, a movable rod or a movable column.

[0182] The first sealing mechanism 303 is detachably connected to the first vertical movement mechanism 302, for example, by bolt connection or plug-in connection.

[0183] In some of these embodiments, the first sealing mechanism 303 includes, but is not limited to, sealing joints, sealing plates, etc., such as a combination of a quick connector and a quick-connect adapter.

[0184] In some embodiments, the first blocking unit 300 further includes a first buffer mechanism 304. The first buffer mechanism 304 is disposed between the first vertical movement mechanism 302 and the first blocking mechanism 303.

[0185] The first buffer mechanism 304 is detachably connected to the first vertical movement mechanism 302 and the first sealing mechanism 303, respectively, through means such as bolt connection or plug-in connection. Specifically, the fixed end of the first buffer mechanism 304 is connected to the first vertical movement mechanism 302, and the buffer end of the first buffer mechanism 304 is connected to the first sealing mechanism 303.

[0186] In some embodiments, the first buffer mechanism 304 includes a first connecting block, a second connecting block, a third connecting block, at least one first buffer spring, and a first rolling ball. The first connecting block is connected to the first vertical movement mechanism 302; the second connecting block is disposed on the side of the first connecting block; the third connecting block is disposed on the side of the second connecting block and connected to the first blocking mechanism 303; the first end of the first buffer spring is connected to the first connecting block, and the second end of the first buffer spring passes through the second connecting block and is connected to the third connecting block; the first rolling ball is disposed between the second and third connecting blocks.

[0187] In some embodiments, there are multiple first buffer springs. These first buffer springs are distributed in a specific manner. For example, there may be two first buffer springs, symmetrically arranged on both sides of the second connecting block and located at the midpoint of the width direction of the second connecting block; or, there may be two first buffer springs, each arranged diagonally on opposite sides of the second connecting block; or, there may be four first buffer springs, each arranged at one of the four corners of the second connecting block.

[0188] Furthermore, the first sealing unit 300 also includes at least one second vertical movement mechanism 305 and at least one marking mechanism 306. The second vertical movement mechanism 305 is disposed on the second mounting element 301 and moves vertically following the second mounting element 301; the marking mechanism 306 is disposed on the second vertical movement mechanism 305 and moves vertically following the second vertical movement mechanism 305, and moves vertically under the action of the second vertical movement mechanism 305 to form a mark on the top of the workpiece to be tested.

[0189] The second vertical motion mechanism 305 includes a third vertical main body element, at least one third vertical sliding element, at least one second vertical channel element, at least one second vertical interface element, a fourth vertical main body element, and at least one fourth vertical sliding element. The third vertical main body element is disposed on the side of the second mounting element 301; the third vertical sliding element passes through the third vertical main body element; the second vertical channel element passes through the third vertical main body element and communicates with the third vertical sliding element; the second vertical interface element is disposed on the side of the third vertical main body element, with its first end communicating with the corresponding second vertical channel element and its second end communicating with the air source delivery device; the fourth vertical main body element is disposed on the side of the marking mechanism 306 and is slidably connected to the third vertical main body element, used to drive the marking mechanism 306 to reciprocate in a preset direction; the fourth vertical sliding element is disposed on the side of the fourth vertical main body element and is slidably connected to the third vertical sliding element, used to drive the fourth vertical main body element to reciprocate in a preset direction under the action of the air source delivery device.

[0190] In some of these embodiments, the third vertical main body element includes, but is not limited to, the sliding block body.

[0191] The third vertical sliding element is located inside the third vertical main body element and extends through the bottom end of the third vertical main body element.

[0192] When there are multiple third vertical sliding elements, the multiple third vertical sliding elements are spaced apart along the width direction of the third vertical main element.

[0193] When there are multiple third vertical sliding elements, the outermost third vertical sliding element is connected to the second vertical channel element.

[0194] In some embodiments, the third vertical sliding element includes a fifth vertical sliding member and a sixth vertical sliding member. The fifth vertical sliding member is disposed inside the third vertical main body element; the sixth vertical sliding member is disposed inside the third vertical main body element, communicates with the fifth vertical sliding member, and extends through the bottom end of the third vertical main body element.

[0195] The dimensions of the sixth vertical slider are matched with those of the fifth vertical slider. Generally, the radial dimension (e.g., diameter) of the sixth vertical slider is smaller than the radial dimension (e.g., diameter) of the fifth vertical slider, and the axial dimension (e.g., height) of the sixth vertical slider is smaller than the axial dimension (e.g., height) of the fifth vertical slider.

[0196] In some embodiments, the third vertical sliding element includes, but is not limited to, a movable cavity, a movable groove, etc.

[0197] The second vertical channel element is positioned to penetrate the side of the third vertical main element.

[0198] When there are multiple second vertical channel elements, these elements are distributed on the sides of the third vertical main body element. For example, the multiple second vertical channel elements are spaced apart along the height direction of the third vertical main body element.

[0199] Preferably, there are two second vertical channel elements. One second vertical channel element is disposed near the first end of the third vertical sliding element, and the other second vertical channel element is disposed near the second end of the third vertical sliding element.

[0200] In some of these embodiments, the second vertical channel element includes, but is not limited to, a gas channel.

[0201] The second vertical interface element is detachably connected to the second vertical channel element, including but not limited to plug-in and threaded connections.

[0202] The number of second vertical interface elements matches the number of second vertical channel elements. Generally, the number of second vertical interface elements is equal to the number of second vertical channel elements, meaning there is a one-to-one correspondence between the second vertical interface elements and the second vertical channel elements.

[0203] In some of these embodiments, the second vertical interface element includes, but is not limited to, a gas interface.

[0204] In some of these embodiments, the fourth vertical main body element includes, but is not limited to, the movable block body.

[0205] Generally, the fourth vertical sliding element and the third vertical sliding element are in a non-separable sliding connection.

[0206] The number of fourth vertical sliding elements matches the number of third vertical sliding elements. Generally, the number of fourth vertical sliding elements is equal to the number of third vertical sliding elements. That is, there is a one-to-one correspondence between the fourth and third vertical sliding elements.

[0207] When there are multiple fourth vertical sliding elements, these elements are spaced apart along the width direction of the fourth vertical main element.

[0208] In some embodiments, the fourth vertical sliding element includes a seventh vertical slider and an eighth vertical slider. The seventh vertical slider is disposed on the side of the fourth vertical main element and connected to the fourth vertical main element, and is movably connected to the sixth vertical slider of the third vertical sliding element; the eighth vertical slider is disposed on the side of the fourth vertical main element and connected to the seventh vertical slider, and is movably connected to the fifth vertical slider of the third vertical sliding element.

[0209] The dimensions of the seventh vertical slider are matched with those of the sixth vertical slider. Generally, the radial dimension (e.g., diameter) of the seventh vertical slider is not greater than the radial dimension (e.g., diameter) of the sixth vertical slider, and the axial dimension (e.g., height) of the seventh vertical slider is greater than the axial dimension (e.g., height) of the sixth vertical slider.

[0210] The dimensions of the eighth vertical slider are matched with those of the seventh vertical slider. Generally, the radial dimension (e.g., diameter) of the eighth vertical slider is greater than that of the seventh vertical slider, and the axial dimension (e.g., height) of the eighth vertical slider is less than that of the seventh vertical slider.

[0211] The dimensions of the eighth vertical slider are matched with those of the fifth vertical slider. Generally, the radial dimension (e.g., diameter) of the eighth vertical slider is not greater than the radial dimension (e.g., diameter) of the fifth vertical slider, and the axial dimension (e.g., height) of the eighth vertical slider is less than the axial dimension (e.g., height) of the fifth vertical slider.

[0212] In some embodiments, the fourth vertical sliding element includes, but is not limited to, a movable rod or a movable column.

[0213] The marking mechanism 306 is detachably connected to the second vertical motion mechanism 305, for example, by bolt connection or plug-in connection.

[0214] like Figures 10-12 As shown, the second sealing unit 400 includes a third mounting element 401, a first lateral movement mechanism 402, and a second sealing mechanism 403. The third mounting element 401 is disposed at the top of the positioning unit 100; the first lateral movement mechanism 402 is disposed on the third mounting element 401; and the second sealing mechanism 403 is disposed on the first lateral movement mechanism 402, and is used to move horizontally under the action of the first lateral movement mechanism 402 to seal the sprue on the side of the workpiece to be tested.

[0215] Specifically, the third mounting element 401 is disposed at the top of the base element 101.

[0216] The third mounting element 401 is detachably connected to the base element 101, for example, by bolt connection or plug-in connection.

[0217] In some of these embodiments, the third mounting element 401 includes, but is not limited to, a mounting base, a mounting pedestal, and a mounting block.

[0218] The first lateral movement mechanism 402 is detachably connected to the third mounting element 401, for example, by bolt connection or plug-in connection.

[0219] In this invention, the first lateral motion mechanism 402 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0220] In some embodiments, the first lateral movement mechanism 402 is described using a cylinder-powered system. Specifically, the first lateral movement mechanism 402 includes a first lateral main body element, at least one first lateral sliding element, at least one first lateral channel element, at least one first lateral interface element, a second lateral main body element, and at least one second lateral sliding element. The first lateral main body element is disposed on the side of the third mounting element 401; the first lateral sliding element passes through the first lateral main body element; the first lateral channel element passes through the first lateral main body element and communicates with the first lateral sliding element; the first lateral interface element is disposed on the side of the first lateral main body element, with its first end communicating with the corresponding first lateral channel element and its second end communicating with the air source delivery device; the second lateral main body element is disposed on the side of the second blocking mechanism 403 and slidably connected to the first lateral main body element, used to drive the second blocking mechanism 403 to reciprocate in a preset direction; the second lateral sliding element is disposed on the side of the second lateral main body element and slidably connected to the first lateral sliding element, used to drive the second lateral main body element to reciprocate in a preset direction under the action of the air source delivery device.

[0221] In some of these embodiments, the first lateral body element includes, but is not limited to, the sliding block body.

[0222] The first lateral sliding element is disposed inside the first lateral main body element and extends through the bottom end of the first lateral main body element.

[0223] When there are multiple first transverse sliding elements, the multiple first transverse sliding elements are spaced apart along the width direction of the first transverse main element.

[0224] When there are multiple first transverse sliding elements, the outermost first transverse sliding element is connected to the first transverse channel element.

[0225] In some embodiments, the first lateral sliding element includes a first lateral sliding member and a second lateral sliding member. The first lateral sliding member is disposed inside the first lateral main body element; the second lateral sliding member is disposed inside the first lateral main body element, communicates with the first lateral sliding member, and extends through the bottom end of the first lateral main body element.

[0226] The dimensions of the second lateral slider are matched with those of the first lateral slider. Generally, the radial dimension (e.g., diameter) of the second lateral slider is smaller than the radial dimension (e.g., diameter) of the first lateral slider, and the axial dimension (e.g., height) of the second lateral slider is smaller than the axial dimension (e.g., height) of the first lateral slider.

[0227] In some of these embodiments, the first lateral sliding element includes, but is not limited to, a movable cavity, a movable groove, etc.

[0228] The first transverse channel element is disposed on the side of the first transverse main body element.

[0229] When there are multiple first transverse channel elements, these elements are distributed on the sides of the first transverse main body element. For example, the multiple first transverse channel elements are spaced apart along the height direction of the first transverse main body element.

[0230] Preferably, there are two first transverse channel elements. One first transverse channel element is disposed near the first end of the first transverse sliding element, and the other first transverse channel element is disposed near the second end of the first transverse sliding element.

[0231] In some of these embodiments, the first lateral channel element includes, but is not limited to, a gas channel.

[0232] The first lateral interface element is detachably connected to the first lateral channel element, including but not limited to plug-in and threaded connections.

[0233] The number of first lateral interface elements matches the number of first lateral channel elements. Generally, the number of first lateral interface elements is equal to the number of first lateral channel elements, meaning there is a one-to-one correspondence between the first lateral interface elements and the first lateral channel elements.

[0234] In some of these embodiments, the first lateral interface element includes, but is not limited to, a gas interface.

[0235] In some of these embodiments, the second lateral body element includes, but is not limited to, the movable block body.

[0236] Generally, the second lateral sliding element and the first lateral sliding element are in a non-separable sliding connection.

[0237] The number of the second lateral sliding elements matches the number of the first lateral sliding elements. Generally, the number of the second lateral sliding elements is equal to the number of the first lateral sliding elements. That is, there is a one-to-one correspondence between the second and first lateral sliding elements.

[0238] When there are multiple second transverse sliding elements, the multiple second transverse sliding elements are spaced apart along the width direction of the second transverse main body element.

[0239] In some embodiments, the second lateral sliding element includes a third lateral sliding member and a fourth lateral sliding member. The third lateral sliding member is disposed on the side of the second lateral main element and connected to the second lateral main element, and is movably connected to the second lateral sliding member of the first lateral sliding element; the fourth lateral sliding member is disposed on the side of the second lateral main element and connected to the third lateral sliding member, and is movably connected to the first lateral sliding member of the first lateral sliding element.

[0240] The dimensions of the third lateral slider are matched with those of the second lateral slider. Generally, the radial dimension (e.g., diameter) of the third lateral slider is not greater than the radial dimension (e.g., diameter) of the second lateral slider, and the axial dimension (e.g., height) of the third lateral slider is greater than the axial dimension (e.g., height) of the second lateral slider.

[0241] The dimensions of the fourth lateral slider are matched with those of the third lateral slider. Generally, the radial dimension (e.g., diameter) of the fourth lateral slider is larger than that of the third lateral slider, and the axial dimension (e.g., height) of the fourth lateral slider is smaller than that of the third lateral slider.

[0242] The dimensions of the fourth lateral slider are matched with those of the first lateral slider. Generally, the radial dimension (e.g., diameter) of the fourth lateral slider is not greater than the radial dimension (e.g., diameter) of the first lateral slider, and the axial dimension (e.g., height) of the fourth lateral slider is less than the axial dimension (e.g., height) of the first lateral slider.

[0243] In some of these embodiments, the second lateral sliding element includes, but is not limited to, a movable rod or a movable column.

[0244] The second sealing mechanism 403 is detachably connected to the first lateral movement mechanism 402, for example, by bolt connection or plug-in connection.

[0245] In some embodiments, the second sealing mechanism 403 includes, but is not limited to, sealing joints, sealing plates, etc., such as a combination of quick connectors and quick-connect adapters.

[0246] Furthermore, the second blocking unit 400 also includes a second buffer mechanism 404. The second buffer mechanism 404 is disposed between the first lateral movement mechanism 402 and the second blocking mechanism 403.

[0247] The second buffer mechanism 404 is detachably connected to the first lateral movement mechanism 402 and the second blocking mechanism 403, respectively, for example, by bolt connection or plug-in connection. Specifically, the fixed end of the second buffer mechanism 404 is connected to the first lateral movement mechanism 402, and the buffer end of the second buffer mechanism 404 is connected to the second blocking mechanism 403.

[0248] In some embodiments, the second buffer mechanism 404 includes a fourth connecting block, a fifth connecting block, a sixth connecting block, at least one second buffer spring, and a second rolling ball. The fourth connecting block is connected to the first lateral movement mechanism 402; the fifth connecting block is disposed on the side of the fourth connecting block; the sixth connecting block is disposed on the side of the fifth connecting block and connected to the second blocking mechanism 403; the first end of the second buffer spring is connected to the fourth connecting block, and the second end of the second buffer spring passes through the fifth connecting block and is connected to the sixth connecting block; the second rolling ball is disposed between the fifth and sixth connecting blocks.

[0249] In some embodiments, there are multiple second buffer springs. These second buffer springs are distributed in a specific pattern. For example, there may be two second buffer springs, symmetrically arranged on both sides of the fifth connecting block and located at the midpoint of the width direction of the fifth connecting block; or, there may be two second buffer springs, each arranged diagonally across the fifth connecting block; or, there may be four second buffer springs, each arranged at one of the four corners of the fifth connecting block.

[0250] like Figures 13-15 As shown, the third sealing unit 500 includes a fourth mounting element 501, a second lateral movement mechanism 502, and a third sealing mechanism 503. The fourth mounting element 501 is disposed at the top of the positioning unit 100; the second lateral movement mechanism 502 is disposed on the fourth mounting element 501; and the third sealing mechanism 503 is disposed on the second lateral movement mechanism 502, and is used to move horizontally under the action of the second lateral movement mechanism 502 to seal the air vent on the side of the workpiece to be tested.

[0251] Specifically, the fourth mounting element 501 is disposed at the top of the base element 101.

[0252] The fourth mounting element 501 is detachably connected to the base element 101, for example, by bolt connection or plug-in connection.

[0253] In some embodiments, the fourth mounting element 501 includes, but is not limited to, a mounting base, a mounting pedestal, and a mounting block.

[0254] The second lateral movement mechanism 502 is detachably connected to the fourth mounting element 501, for example, by bolt connection or plug-in connection.

[0255] In this invention, the second lateral motion mechanism 502 can be electrically driven (such as a drive motor) or pneumatically driven (such as a cylinder).

[0256] In some embodiments, the second lateral movement mechanism 502 is described using a cylinder-powered system. Specifically, the second lateral movement mechanism 502 includes a third lateral main body element, at least one third lateral sliding element, at least one second lateral channel element, at least one second lateral interface element, a fourth lateral main body element, and at least one fourth lateral sliding element. The third lateral main body element is disposed on the side of the fourth mounting element 501; the third lateral sliding element passes through the third lateral main body element; the second lateral channel element passes through the third lateral main body element and communicates with the third lateral sliding element; the second lateral interface element is disposed on the side of the third lateral main body element, with its first end communicating with the corresponding second lateral channel element and its second end communicating with the air source delivery device; the fourth lateral main body element is disposed on the side of the third blocking mechanism 503 and is slidably connected to the third lateral main body element, used to drive the third blocking mechanism 503 to reciprocate in a preset direction; the fourth lateral sliding element is disposed on the side of the fourth lateral main body element and is slidably connected to the third lateral sliding element, used to drive the fourth lateral main body element to reciprocate in a preset direction under the action of the air source delivery device.

[0257] In some of these embodiments, the third lateral body element includes, but is not limited to, the sliding block body.

[0258] The third lateral sliding element is located inside the third lateral main body element and extends through the bottom end of the third lateral main body element.

[0259] When there are multiple third transverse sliding elements, the multiple third transverse sliding elements are spaced apart along the width direction of the third transverse main element.

[0260] When there are several third transverse sliding elements, the outermost third transverse sliding element is connected to the second transverse channel element.

[0261] In some embodiments, the third lateral sliding element includes a fifth lateral sliding member and a sixth lateral sliding member. The fifth lateral sliding member is disposed inside the third lateral main body element; the sixth lateral sliding member is disposed inside the third lateral main body element, communicates with the fifth lateral sliding member, and extends through the bottom end of the third lateral main body element.

[0262] The dimensions of the sixth lateral slider are matched with those of the fifth lateral slider. Generally, the radial dimension (e.g., diameter) of the sixth lateral slider is smaller than the radial dimension (e.g., diameter) of the fifth lateral slider, and the axial dimension (e.g., height) of the sixth lateral slider is smaller than the axial dimension (e.g., height) of the fifth lateral slider.

[0263] In some embodiments, the third lateral sliding element includes, but is not limited to, a movable cavity, a movable groove, etc.

[0264] The second transverse channel element is positioned to pass through the side of the third transverse main element.

[0265] When there are multiple second transverse channel elements, these elements are distributed on the sides of the third transverse main body element. For example, the multiple second transverse channel elements are spaced apart along the height direction of the third transverse main body element.

[0266] Preferably, there are two second transverse channel elements. One second transverse channel element is disposed near the first end of the third transverse sliding element, and the other second transverse channel element is disposed near the second end of the third transverse sliding element.

[0267] In some of these embodiments, the second lateral channel element includes, but is not limited to, a gas channel.

[0268] The second lateral interface element is detachably connected to the second lateral channel element, including but not limited to plug-in and threaded connections.

[0269] The number of second lateral interface elements matches the number of second lateral channel elements. Generally, the number of second lateral interface elements equals the number of second lateral channel elements, meaning there is a one-to-one correspondence between the second lateral interface elements and the second lateral channel elements.

[0270] In some of these embodiments, the second lateral interface element includes, but is not limited to, a gas interface.

[0271] In some of these embodiments, the fourth lateral body element includes, but is not limited to, the movable block body.

[0272] Generally, the fourth lateral sliding element and the third lateral sliding element are in a non-separable sliding connection.

[0273] The number of fourth lateral sliding elements matches the number of third lateral sliding elements. Generally, the number of fourth lateral sliding elements is equal to the number of third lateral sliding elements. That is, there is a one-to-one correspondence between the fourth and third lateral sliding elements.

[0274] When there are multiple fourth transverse sliding elements, the multiple fourth transverse sliding elements are spaced apart along the width direction of the fourth transverse main element.

[0275] In some embodiments, the fourth lateral sliding element includes a seventh lateral sliding member and an eighth lateral sliding member. The seventh lateral sliding member is disposed on the side of the fourth lateral main element and connected to the fourth lateral main element, and is movably connected to the sixth lateral sliding member of the third lateral sliding element; the eighth lateral sliding member is disposed on the side of the fourth lateral main element and connected to the seventh lateral sliding member, and is movably connected to the fifth lateral sliding member of the third lateral sliding element.

[0276] The dimensions of the seventh lateral slider are matched with those of the sixth lateral slider. Generally, the radial dimension (e.g., diameter) of the seventh lateral slider is not greater than the radial dimension (e.g., diameter) of the sixth lateral slider, and the axial dimension (e.g., height) of the seventh lateral slider is greater than the axial dimension (e.g., height) of the sixth lateral slider.

[0277] The dimensions of the eighth lateral slider are matched with those of the seventh lateral slider. Generally, the radial dimension (e.g., diameter) of the eighth lateral slider is greater than that of the seventh lateral slider, and the axial dimension (e.g., height) of the eighth lateral slider is smaller than that of the seventh lateral slider.

[0278] The dimensions of the eighth lateral slider are matched with those of the fifth lateral slider. Generally, the radial dimension (e.g., diameter) of the eighth lateral slider is not greater than the radial dimension (e.g., diameter) of the fifth lateral slider, and the axial dimension (e.g., height) of the eighth lateral slider is less than the axial dimension (e.g., height) of the fifth lateral slider.

[0279] In some of these embodiments, the fourth lateral sliding element includes, but is not limited to, a movable rod or a movable column.

[0280] The third sealing mechanism 503 is detachably connected to the second lateral movement mechanism 502, for example, by bolt connection or plug-in connection.

[0281] In some of these embodiments, the third sealing mechanism 503 includes, but is not limited to, sealing joints, sealing plates, etc.

[0282] Furthermore, the third blocking unit 500 also includes a third buffer mechanism 504. The third buffer mechanism 504 is disposed between the second lateral movement mechanism 502 and the third blocking mechanism 503.

[0283] The third buffer mechanism 504 is detachably connected to the second lateral movement mechanism 502 and the third blocking mechanism 503, respectively, through means such as bolt connection or plug-in connection. Specifically, the fixed end of the third buffer mechanism 504 is connected to the second lateral movement mechanism 502, and the buffer end of the third buffer mechanism 504 is connected to the third blocking mechanism 503.

[0284] In some embodiments, the third buffer mechanism 504 includes a seventh connecting block, an eighth connecting block, a ninth connecting block, at least one third buffer spring, and a third rolling ball. The seventh connecting block is connected to the second lateral movement mechanism 502; the eighth connecting block is disposed on the side of the seventh connecting block; the ninth connecting block is disposed on the side of the eighth connecting block and connected to the third blocking mechanism 503; the first end of the third buffer spring is connected to the seventh connecting block, and the second end of the third buffer spring passes through the eighth connecting block and is connected to the ninth connecting block; the third rolling ball is disposed between the eighth and ninth connecting blocks.

[0285] In some embodiments, there are multiple third buffer springs. These third buffer springs are distributed in a specific manner. For example, there may be two third buffer springs, symmetrically arranged on both sides of the eighth connecting block and located at the midpoint of the width direction of the eighth connecting block; or, there may be two third buffer springs, each arranged diagonally across the eighth connecting block; or, there may be four third buffer springs, each arranged at one of the four corners of the eighth connecting block.

[0286] like Figure 16 As shown, the airtightness testing unit 600 includes a fifth mounting element 601 and an airtightness testing element 602. The fifth mounting element 601 is disposed on a horizontal plane and positions the side of the unit 100; the airtightness testing element 602 is disposed on the fifth mounting element 601 and connected to the positioning unit 100, and is used to test the airtightness of the workpiece to be tested.

[0287] Specifically, the fifth mounting element 601 is disposed on the side of the base element 101.

[0288] Generally, the fifth mounting element 601 has a hollow structure. Specifically, the airtightness testing element 602 is mounted inside the hollow structure.

[0289] In some of these embodiments, the fifth mounting element 601 is, but is not limited to, a mounting bracket.

[0290] The airtightness testing element 602 is detachably connected to the fifth mounting element 601, for example, by bolt connection.

[0291] In some embodiments, the airtightness testing element 602 includes, but is not limited to, an airtightness tester, such as the ATEQ F620.

[0292] Furthermore, the automatic airtightness testing device also includes a base unit 700. The base unit 700 is disposed on a horizontal plane, and a positioning unit 100, a pressing unit 200, and an airtightness testing unit 600 are disposed at the top of the base unit 700.

[0293] Specifically, the top of the base unit 700 is connected to the base element 101, the first mounting element 201, and the fifth mounting element 601, respectively.

[0294] The base unit 700 is detachably connected to the base element 101, the first mounting element 201, and the fifth mounting element 601, respectively, for example, by bolt connection.

[0295] In some of these embodiments, the base unit 700 includes, but is not limited to, a base.

[0296] The method of using this utility model is as follows:

[0297] The workpiece to be tested is placed in the bearing element 102 and pressed against several positioning elements 103;

[0298] When the driving element 202 is working, it drives the first sealing unit 300 to move downward in the vertical direction through the pressing element 203 until the pressing element 203 moves to the preset position (i.e., abuts against the limiting element 206);

[0299] The first vertical motion mechanism 302 operates, driving the first sealing mechanism 303 to move downward in the vertical direction to seal the air vent located at the top of the workpiece to be tested;

[0300] The first lateral movement mechanism 402 operates, driving the second sealing mechanism 403 to move in the horizontal direction to seal the sprue located on the side of the workpiece to be tested.

[0301] The second lateral movement mechanism 502 operates, driving the third sealing mechanism 503 to move in the horizontal direction to seal the air vent located on the side of the workpiece to be tested.

[0302] When all air ports and water ports of the workpiece to be tested are blocked, the air tightness testing element 602 works to perform an air tightness test on the cavity formed by the workpiece to be tested and the bearing element 102 (including the air filling process, the pressure holding process, and the air release process).

[0303] After the test is completed, the first sealing unit 300, the second sealing unit 400, and the third sealing unit 500 will work to separate from the air port and water port of the workpiece that has been tested.

[0304] When the driving element 202 is working, it drives the first sealing unit 300 to move upward in the vertical direction through the pressing element 203 until the pressing element 203 moves to the initial position;

[0305] Remove the workpiece that has completed the test.

[0306] The technical effects of this utility model are as follows:

[0307] 1) Automatic pressing is performed through a pressing unit, improving product testing consistency;

[0308] 2) By utilizing the cooperation of the first, second, and third sealing units, fully automatic sealing is achieved, greatly reducing manual operation and ensuring sealing stability;

[0309] 3) Using an airtightness testing unit can improve testing efficiency.

[0310] Example 2

[0311] This embodiment relates to the automatic airtightness testing system of this utility model.

[0312] An illustrative embodiment of this utility model, such as Figure 17 As shown, an automatic airtightness testing system includes an automatic airtightness testing device A as described in Example 1 and an air source delivery device B. The air source delivery device B is connected to a first sealing unit 300, a second sealing unit 400, and a third sealing unit 500, respectively.

[0313] Specifically, the air supply device B is connected to the first vertical motion mechanism 302, the marking mechanism 306, the first horizontal motion mechanism 402, and the second horizontal motion mechanism 502, respectively.

[0314] In addition, the air supply delivery device B is also connected to the drive element 202 of the pressing unit 200.

[0315] In some of these embodiments, the gas delivery device B includes, but is not limited to, an air pump.

[0316] Furthermore, the automatic airtightness testing system also includes a control device C. The control device C is connected to both the automatic airtightness testing device A and the air source delivery device B.

[0317] In some of these embodiments, the control device C includes, but is not limited to, a central control unit, a PLC, etc.

[0318] The usage method of this embodiment is basically the same as that of Embodiment 1, and will not be repeated here.

[0319] The technical effects of this embodiment are basically the same as those of Embodiment 1, and will not be repeated here.

[0320] 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. A hermetically sealed automatic test device, characterized by, include: A positioning unit, which is disposed on a horizontal plane, is used to support the workpiece to be tested; A pressing unit is disposed above the positioning unit and is used to move in a vertical direction to press the workpiece to be tested located in the positioning unit; The first sealing unit is disposed on the pressing unit and is used to follow the pressing unit to move in the vertical direction to seal the air vent at the top of the workpiece to be tested; At least one second sealing unit is provided, which is disposed at the top of the positioning unit and is used to seal the sprue on the side of the workpiece to be tested; At least one third sealing unit is provided, which is disposed at the top of the positioning unit and is used to seal the air vent on the side of the workpiece to be tested; An airtightness testing unit is disposed on the side of the positioning unit and connected to the positioning unit, and is used to test the airtightness of the workpiece to be tested.

2. The hermetic automatic test device of claim 1, wherein, The positioning unit includes: A base element, wherein the base element is disposed on a horizontal plane, and at least one second sealing unit and at least one third sealing unit are disposed at the top end of the base element; A support element is disposed at the top of the base element and is used to support the workpiece to be tested and to form a closed space with the workpiece to be tested; At least one positioning element is disposed at the top of the base element and located on the side of the bearing element, for positioning the side of the workpiece to be tested; A connector element is disposed on the base element and connected to the bearing element and the airtightness testing unit respectively, for allowing gas to enter the sealed space.

3. The hermetic automatic test apparatus according to claim 2, wherein The positioning unit further includes: At least one position detection element is disposed on the base element and is used to detect whether the workpiece to be tested is placed on the support element.

4. The hermetic automatic test apparatus according to claim 1, wherein The pressing unit includes: A first mounting element, wherein the first mounting element is disposed on a horizontal plane; A driving element, wherein the driving element is disposed on the first mounting element; A pressing element is disposed on the upper part of the positioning unit and connected to the driving element and the first sealing unit respectively, and is used to drive the first sealing unit to reciprocate in the vertical direction under the action of the driving element.

5. The hermetic automatic test apparatus according to claim 4, wherein The pressing unit further includes: At least one guide element is connected to the first mounting element and movably connected to the pressing element, for defining the direction of movement of the pressing element; At least one bearing element, said bearing element being disposed on the pressing element and slidably connected to the corresponding guide element; and / or At least one limiting element is provided, which is disposed on a horizontal plane and located below the pressing element, for limiting the range of motion of the pressing element.

6. The hermetic automatic test apparatus according to claim 1, wherein The first sealing unit includes: The second mounting element is disposed on the pressing unit and is used to follow the pressing unit in reciprocating motion in the vertical direction; A first vertical motion mechanism is disposed on the second mounting element and is used to follow the second mounting element to move in the vertical direction; A first sealing mechanism, disposed on the first vertical motion mechanism, is used to follow the vertical motion of the first vertical motion mechanism and move vertically under the action of the first vertical motion mechanism to seal the air vent at the top of the workpiece to be tested; and / or The second sealing unit includes: A third mounting element is disposed at the top of the positioning unit; A first lateral movement mechanism is disposed on the third mounting element; A second sealing mechanism, disposed within the first lateral movement mechanism, is used to move horizontally under the action of the first lateral movement mechanism to seal the sprue on the side of the workpiece to be tested; and / or The third blocking unit includes: A fourth mounting element is disposed at the top of the positioning unit; The second lateral movement mechanism is disposed on the fourth mounting element; The third sealing mechanism is disposed in the second transverse motion mechanism and is used to move in the horizontal direction under the action of the second transverse motion mechanism to seal the air port on the side of the workpiece to be tested.

7. The hermetic automatic test apparatus according to claim 6, wherein The first sealing unit also includes: A first buffer mechanism is disposed between the first vertical movement mechanism and the first blocking mechanism; and / or The first sealing unit also includes: At least one second vertical motion mechanism is disposed on the second mounting element and is used to follow the second mounting element to move in the vertical direction; At least one marking mechanism, disposed on the second vertical motion mechanism, is used to follow the second vertical motion mechanism in a vertical direction and to move vertically under the action of the second vertical motion mechanism to form a mark on the top of the workpiece to be tested; and / or The second sealing unit also includes: A second buffer mechanism is disposed between the first lateral movement mechanism and the second blocking mechanism; and / or The third sealing unit also includes: The third buffer mechanism is disposed between the second lateral movement mechanism and the third blocking mechanism.

8. The hermetic automatic test apparatus according to claim 1, wherein The airtightness testing unit includes: A fifth mounting element, which is disposed on a horizontal plane and on the side of the positioning unit; An airtightness testing element is disposed on the fifth mounting element and connected to the positioning unit for testing the airtightness of the workpiece to be tested.

9. The hermetic automatic testing device according to any of claims 1 to 8, characterized in that, Also includes: A base unit is disposed on a horizontal plane, and the top of the base unit is provided with the positioning unit, the pressing unit, and the airtightness testing unit.

10. A hermetically sealed automatic test system, characterized by, include: The automatic airtightness testing device as described in any one of claims 1 to 9; A gas source delivery device is connected to the first sealing unit, the second sealing unit, and the third sealing unit, respectively.

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