Pressure casting sealing performance gas-liquid detection equipment

Abstract

The utility model belongs to the technical field of pressure casting sealing performance, and particularly relates to pressure casting sealing performance gas-liquid detection equipment. The utility model relates to a pressure casting sealing performance gas-liquid detection device comprising the following structures: a detection plate, the upper surface of which is provided with a product placing area; the pressing device is arranged above the detection plate and is used for pressing the product on the detection plate; the plugging device is arranged on the outer side of the product placing area and is used for plugging a hole site in the side wall of the product; the bottom plate is placed in a water tank; the bottom plate is provided with a lifting device used for bearing the detection plate. When air tightness detection is carried out, the lifting device supports the detection plate, a product is supported on the liquid level, and a qualified product cannot be soaked; when an unqualified product is detected, the lifting device can drive the detection plate to descend, so that the product is immersed in liquid, and the defect position can be conveniently determined.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing performance of die castings, and in particular relates to a gas-liquid detection device for sealing performance of die castings. Background Art

[0002] Aluminum alloy die-casting is a widely used manufacturing technology, used in various industries, including furniture, home appliances, automobiles, aircraft, ships, and construction machinery. Aluminum alloy die-casting parts are typically formed using high-speed and high-pressure die-casting. Due to the characteristics of this molding method, aluminum alloy die-casting parts may exhibit defects such as loose internal structure, porosity, and surface cracks.

[0003] To prevent defective aluminum alloy die-castings from leaking, airtightness testing is currently the primary method used. This involves sealing the product using a tooling system, then filling the die-casting with gas at a set pressure. The pressure drop over a specific time interval is then measured to determine if the die-casting contains defects such as pinholes, pores, and surface cracks. This method can effectively detect quality issues in aluminum alloy die-castings, improving their overall quality and reliability.

[0004] However, although this airtightness test method can detect whether aluminum alloy die-castings are qualified, it cannot determine the location of defects in unqualified products and cannot repair leaking products to reduce production costs. Utility Model Content

[0005] The purpose of the utility model is to provide a die-casting air-liquid sealing inspection device to solve the technical problem that the existing airtightness testing method can detect whether the aluminum alloy die-casting is qualified but cannot determine the defect location of the unqualified product.

[0006] The present application provides a die-casting sealing gas-liquid inspection device. The die-casting sealing gas-liquid inspection device comprises:

[0007] a test board having a product placement area provided on its upper surface;

[0008] A pressing device, arranged above the detection plate, for pressing the product onto the detection plate;

[0009] A blocking device is provided outside the product placement area and is used to block the holes on the side wall of the product;

[0010] The bottom plate is used to be placed in the water tank; a lifting device for carrying the detection plate is provided on the bottom plate; the lifting device is used to drive the detection plate down when the product fails the air tightness test so that the product is immersed in the liquid.

[0011] In one embodiment of the present application, the lifting device includes four lifting cylinders, which are respectively arranged under the four corners of the detection plate.

[0012] In one embodiment of the present application, the pressing device includes:

[0013] Four supporting columns are respectively arranged at the four corners of the detection board;

[0014] A top plate, fixed to the upper ends of the four support columns;

[0015] A plurality of downward pressure cylinders are fixed on the bottom surface of the top plate; the lower end of each downward pressure cylinder is provided with a corresponding pressure head.

[0016] In one embodiment of the present application, the pressing head is made of PU.

[0017] In one embodiment of the present application, the blocking device includes a plurality of blocking cylinders, which are arranged outside the product placement area and correspond to corresponding holes on the product respectively; and

[0018] The end of each sealing cylinder is respectively provided with a sealing piece adapted to the corresponding hole position.

[0019] In one embodiment of the present application, the detection plate is provided with a carrying plate, and the product placement area is provided on the carrying plate;

[0020] The edge of the product placement area is a receiving groove for receiving the side edges of the product;

[0021] The product placement area is provided with air holes that are communicated with the interior of the product.

[0022] In one embodiment of the present application, two adjacent sides of the carrier plate are provided with a plurality of positioning blocks;

[0023] The positioning block extends into the upper part of the accommodating groove toward the side of the product placement area.

[0024] In one embodiment of the present application, the positioning block is made of bakelite.

[0025] In one embodiment of the present application, a sealing ring is provided in the receiving groove.

[0026] In one embodiment of the present application, the hole position includes at least one of an indicator light hole, a maintenance window, a ventilation valve hole, a DP interface hole, and an HDMI interface hole.

[0027] The beneficial effects of the present invention are as follows: the gas-liquid inspection equipment for the sealing performance of die-cast parts comprises: a test plate, the upper surface of which is provided with a product placement area; a pressing device, arranged above the test plate, for pressing the product against the test plate; a blocking device, arranged outside the product placement area, for blocking holes in the side walls of the product; a bottom plate, for placement in a water tank; and a lifting device for supporting the test plate. During the airtightness test, the lifting device supports the test plate, supporting the product above the liquid surface, preventing qualified products from being soaked. When unqualified products are detected, the lifting device can drive the test plate down to immerse the product in the liquid, thereby conveniently locating the defect.

[0028] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a schematic diagram of a gas-liquid inspection device for sealing of die-casting parts according to a preferred embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of a die-casting sealing gas-liquid inspection device placed in a water tank according to a preferred embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of a pressing device of a preferred embodiment of the present utility model;

[0034] Figure 4 It is a schematic diagram of a blocking device according to a preferred embodiment of the present invention;

[0035] Figure 5 This is a top view of a positioning block and a receiving groove in a preferred embodiment of the present invention;

[0036] Figure 6 It is a product schematic diagram of a preferred embodiment of the present utility model.

[0037] In the picture:

[0038] Detection plate 1, carrying plate 11, product placement area 111, accommodating groove 112, air hole 113, positioning block 114, indicator light hole 115, maintenance window 116, air valve hole 117, DP interface hole 118, HDMI interface hole 119, clamping device 2, support column 21, top plate 22, first manual valve 221, second manual valve 222, third manual valve 223, downward pressure cylinder 23, pressure head 231, sealing device 3, sealing cylinder 31, sealing part 311, bottom plate 4, lifting device 5, lifting cylinder 51, product 100, water tank 200. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0040] The present application provides a gas-liquid inspection device for the sealing performance of die-cast parts, which is described in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a particular embodiment, please refer to the relevant description of other embodiments.

[0041] See also Figures 1 to 4 In one embodiment of the present application, the die-casting sealing gas-liquid inspection equipment includes: a test plate 1, a product placement area 111 is provided on its upper surface; a pressing device 2 is arranged above the test plate 1, for pressing the product 100 on the test plate 1; a blocking device 3 is arranged on the outside of the product placement area 111, for blocking the holes on the side wall of the product 100; a bottom plate 4 is used to be placed in the water tank 200; a lifting device 5 for supporting the test plate 1 is provided on the bottom plate 4; the lifting device 5 is used to drive the test plate 1 to descend when the air tightness test of the product 100 fails, so that the product 100 is immersed in the liquid.

[0042] In this embodiment, when performing a sealing test on the product 100, the product 100 is placed on the test plate 1, pressed by the pressing device 2, and the holes on the side wall of the product 100 are blocked by the sealing device 3, thereby forming a cavity between the product 100 and the product placement area 111. By connecting the airtightness detector with the cavity, the airtightness of the product 100 can be tested by pressurizing or vacuuming the pressure holding capacity.

[0043] In this embodiment, when performing a sealing test, the lifting device 5 can lift the detection plate 1 so that the product 100 is located above the liquid surface. In this way, when the product 100 passes the test, the qualified product will not be soaked; when an unqualified product is detected, the lifting device 5 drives the detection plate 1 to descend so that the product 100 is immersed in the liquid, so that the leakage point can be observed and confirmed.

[0044] See also Figure 1 Optionally, the lifting device 5 includes four lifting cylinders 51, which are respectively arranged under the four corners of the detection plate 1.

[0045] In this embodiment, when some products do not need to be watertight tested, the die-casting sealing gas-liquid inspection equipment can be moved out of the water tank; when a watertight test is required, the bottom plate 4 can be placed in the water tank, which is flexible and convenient to use.

[0046] See also Figure 3 In this embodiment, optionally, the pressing device 2 includes: four support columns 21, which are respectively arranged at the four corners of the detection plate 1; a top plate 22, which is fixed to the upper ends of the four support columns 21; and a plurality of downward pressure cylinders 23, which are fixed to the bottom surface of the top plate 22; and the lower end of each downward pressure cylinder 23 is provided with a corresponding pressure head 231.

[0047] Preferably, the pressing head 231 is made of elastomeric material.

[0048] See also Figure 4 Optionally, the sealing device 3 includes a plurality of sealing cylinders 31, which are arranged on the outside of the product placement area 111 and correspond to the corresponding hole positions on the product 100; and the end of each sealing cylinder 31 is respectively provided with a sealing piece 311 adapted to the corresponding hole position.

[0049] In some application scenarios, the hole positions include at least one of the indicator hole 115, the maintenance window 116, the vent valve hole 117, the DP interface hole 118, and the HDMI interface hole 119. The shape of the blocking member 311 can be designed to match the corresponding hole shape, and the corresponding hole is blocked by the blocking cylinder 31.

[0050] See also Figure 4 In one embodiment, a carrier plate 11 is provided on the detection plate 1, and the carrier plate 11 is provided with the product placement area 111; the edge of the product placement area 111 is a receiving groove 112 for receiving the side of the product 100. A sealing ring is provided in the receiving groove 112.

[0051] In this embodiment, by providing a carrying plate 11 on the detection plate 1 , the product placement area 111 is provided on the carrying plate 11 , which makes it easy to replace different carrying plates 11 according to different products without replacing the detection plate.

[0052] In some embodiments, a cavity is formed between the product 100 and the product placement area 111. The airtightness detector can be connected to the cavity by directly connecting to a through hole on the product 100 through an air pipe, and the through hole is connected to the cavity; or, an air hole 113 connected to the interior of the product 100 is provided in the product placement area 111, and an air duct connected to the air hole 113 is provided in the supporting plate 11, and the air duct is connected to the air duct outlet on the side of the supporting plate, and is connected to the air duct outlet through the airtightness detector.

[0053] See also Figure 4 and Figure 5 In this embodiment, optionally, a plurality of positioning blocks 114 are provided on two adjacent sides of the carrier plate 11 ; the positioning blocks 114 extend into the upper part of the accommodating groove 112 toward the side of the product placement area 111 .

[0054] In this embodiment, the product 100 is positioned by the positioning block 114, and after positioning, the side of the product 100 can be just located in the receiving groove 112. The width of the receiving groove 112 is slightly wider than the side of the product 100.

[0055] In this embodiment, optionally, the positioning block 114 is made of bakelite.

[0056] In this embodiment, the die-casting sealing gas-liquid inspection equipment further includes a manual operating device, respectively connected to the pressing device, the lifting device, and the blocking device, for manual independent control. In this embodiment, the manual operating device can optionally include a first manual valve 221, a second manual valve 222, and a third manual valve 223 provided on the top plate 22, for controlling the cylinders of the pressing device 2, the blocking device 3, and the lifting device 5, respectively.

[0057] In summary, the die-casting sealing gas-liquid inspection equipment of the utility model has the following advantages:

[0058] 1. The die-casting sealing gas-liquid inspection equipment and water tank can be used separately. If the product does not require watertightness testing, the water tank can be used to test other products;

[0059] 2. The product being tested is positioned by its shape. The positioning block 114 is made of bakelite. When the cylinder presses the product, it will not cause damage to the product.

[0060] 3. The lifting device adopts cylinders. Cylinders of different specifications can be replaced according to different products to meet the needs of products of different specifications;

[0061] 4. The tooling area to be tested is exposed outside the water tank, which is convenient for material discharge and retrieval.

[0062] 5. It can quickly identify the defective locations of aluminum alloy die-castings, repair the products, and reduce the product scrap rate. By identifying the defective locations, the production process parameters can be adjusted quickly and effectively to improve the product qualification rate.

[0063] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0064] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.

[0065] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0066] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A gas-liquid inspection device for the sealing of die castings, characterized in that: include: A detection plate (1) having a product placement area (111) provided on its upper surface; A pressing device (2), disposed above the detection plate (1), for pressing the product (100) onto the detection plate (1); A blocking device (3) is provided outside the product placement area (111) and is used to block holes on the side wall of the product (100); A bottom plate (4) is used for being placed in a water tank (200); a lifting device (5) for carrying a detection plate (1) is provided on the bottom plate (4); the lifting device (5) is used for driving the detection plate (1) to descend when the product (100) fails an airtightness test, so that the product (100) is immersed in liquid.

2. The die casting sealing gas-liquid inspection equipment according to claim 1, characterized in that: The lifting device (5) comprises four lifting cylinders (51) which are respectively arranged below the four corners of the detection plate (1).

3. The die casting sealing gas-liquid inspection equipment according to claim 1, characterized in that: The pressing device (2) comprises: Four support columns (21) are respectively arranged at the four corners of the detection plate (1); A top plate (22) is fixed to the upper ends of the four support columns (21); A plurality of downward pressure cylinders (23) are fixed on the bottom surface of the top plate (22); the lower end of each downward pressure cylinder (23) is provided with a corresponding pressure head (231).

4. The die casting sealing gas-liquid inspection equipment according to claim 3, characterized in that: The pressing head (231) is made of elastomeric material.

5. The die casting sealing gas-liquid inspection equipment according to claim 1, characterized in that: The blocking device (3) comprises a plurality of blocking cylinders (31) which are arranged outside the product placement area (111) and respectively correspond to corresponding holes on the product (100); and The end of each sealing cylinder (31) is respectively provided with a sealing piece (311) adapted to the corresponding hole position.

6. The die casting sealing gas-liquid inspection equipment according to claim 1, characterized in that: A carrying plate (11) is provided on the detection plate (1), and the product placement area (111) is provided on the carrying plate (11); The edge of the product placement area (111) is a receiving groove (112) for receiving the side of the product (100); The product placement area (111) is provided with an air hole (113) communicating with the interior of the product (100).

7. The die casting sealing gas-liquid inspection equipment according to claim 6, characterized in that: Two adjacent sides of the carrying plate (11) are provided with a plurality of positioning blocks (114); The positioning block (114) extends into the upper part of the accommodating groove (112) toward the side of the product placement area (111).

8. The die casting sealing gas-liquid inspection equipment according to claim 7, characterized in that: The positioning block (114) is made of bakelite.

9. The die casting sealing gas-liquid inspection equipment according to claim 7, characterized in that: A sealing ring is provided in the receiving groove (112).

10. The die casting sealing gas-liquid inspection equipment according to claim 1, characterized in that: It also includes a manual operating device, which is connected to the pressing device, the lifting device, and the blocking device respectively for manual independent control.

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