Equipment for detecting air tightness of die casting

Abstract

The utility model discloses a device for detecting the airtightness of a die casting, which comprises a workbench, a sealing rubber pad arranged on the surface of the upper end of the workbench, an air pump arranged at the bottom end of the workbench, an air outlet pipe connected to the right end of the air pump, and a protective cover penetrating through the workbench and the sealing rubber pad. A protective cover is arranged above the sealing rubber mat, partition plates are slidably connected to the left side and the right side in the protective cover, first studs are rotatably connected to the ends, away from each other, of the two partition plates, rotating discs are arranged at the ends, away from each other, of the two first studs, guide rods are arranged below the first studs, and the partition plates are fixedly connected to the ends, close to each other, of the two guide rods; the protective cover is connected with the first stud and the guide rod in a sleeved mode, the barometer is arranged at the upper end of the protective cover, the connecting plate is arranged at the rear end of the protective cover, the fixing assembly is arranged in the protective cover, and the lifting assembly is arranged on the rear side in the protective cover.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting part detection equipment, and discloses an air tightness detection equipment for die-casting parts. Background Technique

[0002] A die-casting part is a part formed by die-casting. It uses a die-casting machine, a die-casting machine equipped with a casting mold, to pour molten copper, zinc, aluminum or aluminum alloy and other metals into the feeding port of the die-casting machine. After die-casting by the die-casting machine, copper, zinc, aluminum parts or aluminum alloy parts with the shape and size restricted by the mold are cast. Such parts are usually called die-casting parts. Die-casting parts have different names in different places, such as die-casting parts, pressure die-casting parts, die-casting parts, die-cast aluminum, die-cast zinc parts, die-cast copper parts, copper die-casting parts, zinc die-casting parts, aluminum die-casting parts, aluminum alloy die-casting parts, aluminum alloy die-casting parts, etc. In our current industrial production, a lot of castings are needed. With the continuous improvement of requirements, the quality requirements for these castings are also constantly increasing. Among them, the air tightness of the casting is one of the important indicators to measure its quality.

[0003] The patent with the publication number of CN216483767U in the prior art discloses a device for detecting the air tightness of aluminum alloy die-casting parts, including a base. The top of the base is fixedly connected with a workbench. The top of the base and on the back of the workbench is fixedly connected with a fixing plate. A driving component is arranged on the fixing plate. The driving end of the driving component is provided with a protective cover. Both sides inside the protective cover are provided with adjusting components. The device for detecting the air tightness of aluminum alloy die-casting parts of the utility model can drive the protective cover to move up and down through the setting of the driving component. Through the downward movement of the protective cover, the aluminum alloy die-casting part to be detected can be hermetically covered for air tightness detection work. Through the setting of the adjusting component, the space inside the protective cover can be adjusted, thereby meeting the detection work of aluminum alloy die-casting parts of different sizes and improving the comprehensiveness of use.

[0004] However, the patents in the prior art have the following several disadvantages:

[0005] (1) When the air outlet pipe fills the die-casting part with gas, as the air pressure increases, the die-casting part may be lifted, resulting in the failure of detection.

[0006] (2) There is no air tightness mechanism between the protective cover and the workbench, which may cause air leakage in the protective cover and affect the detection result. Content of the Utility Model

[0007] The purpose of the utility model is to provide an air tightness detection equipment for die-casting parts, which solves the problems that the prior art cannot fix die-casting parts and has poor air tightness by setting a fixing component and a sealing gasket.

[0008] To achieve the above object, the utility model is realized by the following technical solutions:

[0009] An airtightness detection device for die-castings, comprising:

[0010] A workbench, on the upper surface of which a sealing rubber pad is provided;

[0011] An air pump, which is fixedly connected to the bottom end of the workbench. An air outlet pipe is connected to the right end of the air pump, and the air outlet pipe penetrates through the workbench and the sealing rubber pad;

[0012] A protective cover, which is located above the sealing rubber pad. Partition plates are slidably connected to both the left and right sides inside the protective cover. First screw rods are rotatably connected to the mutually remote ends of the two partition plates. Turntables are provided at the mutually remote ends of the two first screw rods. Guide rods are provided below the first screw rods. The mutually close ends of the two guide rods are fixedly connected to the partition plates. The protective cover sleeves the first screw rods and the guide rods. A pressure gauge is provided at the upper end of the protective cover, and a connecting plate is provided at the rear end of the protective cover;

[0013] A fixing component, which is located inside the protective cover;

[0014] A lifting component, which is located at the rear side of the protective cover.

[0015] Further, the lifting component includes:

[0016] A fixing plate, which is a U-shaped plate and is fixedly connected to the workbench at the bottom end;

[0017] A second screw rod, which is rotatably connected to the fixing plate at both the upper and lower ends. Positioning columns are provided on both the left and right sides of the second screw rod, and the upper and lower ends of the positioning columns are fixedly connected to the fixing plate;

[0018] A motor, which is fixedly connected to the upper end of the fixing plate, and the upper end of the second screw rod is fixedly connected to the motor.

[0019] Further, the connecting plate sleeves the second screw rod and the positioning column.

[0020] Further, the fixing component includes:

[0021] A fixing column, which is fixedly connected to the protective cover. A push rod is slidably connected inside the fixing column. A pressing plate is provided at the bottom end of the push rod, and a buffer rubber pad is provided on the bottom surface of the pressing plate;

[0022] A rocker, which is rotatably connected to the upper left end of the fixing column, and a first bevel gear is connected to the right end of the rocker;

[0023] A screw rod, which is rotatably connected to the upper end inside the fixing column, and a second bevel gear is fixedly connected to the upper surface of the screw rod.

[0024] Further, the first bevel gear meshes with the second bevel gear.

[0025] Further, the push rod is sleeved on the screw rod.

[0026] The utility model provides an air tightness detection device for die castings, which has the following beneficial effects:

[0027] (1) By setting the fixing component, the utility model solves the problem that the existing air tightness detection device for die castings cannot fix the die castings. Rotate the rocker. The rocker drives the screw rod to rotate through the first bevel gear and the second bevel gear, and then the push rod descends. The push rod further pushes the pressing plate to press the die casting, preventing the die casting from being lifted by the gas.

[0028] (2) By setting the sealing gasket, the utility model solves the problem of poor sealing of the existing air tightness detection device for die castings. When the protective cover covers the die casting, it will tightly contact the sealing gasket and press the sealing gasket to make it concave downward, greatly enhancing the sealing performance and preventing the gas from flowing out and affecting the detection result. Description of the Drawings

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained by extending according to the provided drawings without creative efforts.

[0030] Figure 1 It is a three-dimensional structure diagram of an air tightness detection device for die castings of the utility model;

[0031] Figure 2 It is a front view of an air tightness detection device for die castings of the utility model;

[0032] Figure 3 It is a cross-sectional view of the protective cover of an air tightness detection device for die castings of the utility model;

[0033] Figure 4 It is a structural diagram of the fixing component of an air tightness detection device for die castings of the utility model;

[0034] Among them: 1. Workbench; 101. Sealing gasket; 2. Air pump; 201. Air outlet pipe; 3. Protective cover; 301. Partition board; 302. First stud; 303. Turntable; 304. Guide rod; 305. Pressure gauge; 306. Connecting plate; 4. Fixing component; 401. Fixing column; 402. Push rod; 403. Pressing plate; 404. Buffer gasket; 405. Rocker; 406. First bevel gear; 407. Screw; 408. Second bevel gear; 5. Lifting component; 501. Fixing plate; 502. Second stud; 503. Positioning column; 504. Motor. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1-4 , a device for detecting the airtightness of die-castings, including a workbench 1. There is a sealing gasket 101 on the upper surface of the workbench 1. There is an air pump 2 at the bottom end of the workbench 1. The right end of the air pump 2 is connected with an air outlet pipe 201. The air pump 2 can spray air through the air outlet pipe 201. The air outlet pipe 201 penetrates through the workbench 1 and the sealing gasket 101. There is a protective cover 3. There is a protective cover 3 above the sealing gasket 101. Both the left and right sides inside the protective cover 3 are slidably connected with partition boards 301. An inner cavity is formed between the two partition boards 301. Both ends of the two partition boards 301 away from each other are rotatably connected with first studs 302. There are turntables 303 at the ends of the two first studs 302 away from each other, which is convenient for rotating the first studs 302. There are guide rods 304 below the first studs 302. Both ends of the two guide rods 304 close to each other are fixedly connected to the partition boards 301. The guide rods 304 can keep the movement of the partition boards 301 stable. The protective cover 3 sleevingly connects the first studs 302 and the guide rods 304. Rotating the turntable 303 can push the partition boards 301 through the first studs 302, so that they move inside the protective cover 3 and change the size of the inner cavity to adapt to die-castings of different sizes. There is a pressure gauge 305 on the upper end of the protective cover 3, which can detect the air pressure inside the protective cover 3. There is a connecting plate 306 at the rear end of the protective cover 3. There is a fixing component 4 inside the protective cover 3 for fixing die-castings. There is a lifting component 5 at the rear side inside the protective cover 3, which can drive the protective cover 3 to move in the vertical direction.

[0037] Specifically, the fixing component 4 includes a fixing post 401. The fixing post 401 is fixedly connected to the protective cover 3. A push rod 402 is slidably connected inside the fixing post 401. The push rod 402 can slide in the vertical direction. There is a pressing plate 403 at the bottom end of the push rod 402. There is a buffer rubber pad 404 on the bottom surface of the pressing plate 403. The buffer rubber pad 404 can provide buffering for the die-casting part to prevent the die-casting part from being damaged by the pressing plate 403. A rocker 405 is rotatably connected to the upper left end of the fixing post 401. A first bevel gear 406 is connected to the right end of the rocker 405. A screw rod 407 is rotatably connected to the upper end inside the fixing post 401. A second bevel gear 408 is fixedly connected to the upper surface of the screw rod 407. The first bevel gear 406 meshes with the second bevel gear 408. The first bevel gear 406 can drive the second bevel gear 408 to rotate together, and then drive the screw rod 407 to rotate. The push rod 402 is sleeved on the screw rod 407, and the push rod 402 will move along with the rotation of the screw rod 407.

[0038] Through the above technical solution, rotate the rocker 405. The rocker 405 drives the screw rod 407 to rotate through the first bevel gear 406 and the second bevel gear 408, and then the push rod 402 descends. The push rod 402 further pushes the pressing plate 403 to press the die-casting part to prevent the die-casting part from being lifted by the gas.

[0039] Specifically, the lifting component 5 includes a fixing plate 501. The fixing plate 501 is a U-shaped plate. The bottom end of the fixing plate 501 is fixedly connected to the workbench 1. There is a second screw post 502 inside the fixing plate 501. The upper and lower ends of the second screw post 502 are rotatably connected to the fixing plate 501. There are positioning posts 503 on both the left and right sides of the second screw post 502. The upper and lower ends of the positioning posts 503 are fixedly connected to the fixing plate 501. The upper end of the second screw post 502 is connected to a motor 504, which can control the rotation of the second screw post 502. The motor 504 is fixedly connected to the upper end of the fixing plate 501. The connecting plate 306 is sleeved on the second screw post 502 and the positioning posts 503, and the connecting plate 306 will move in the vertical direction along with the rotation of the second screw post 502.

[0040] Through the above technical solution, the motor 504 can control the rotation of the second screw post 502, and then drive the protective cover 3 to move in the vertical direction through the connecting plate 306.

[0041] In use, place the die-casting part upside down on the workbench 1, rotate the two turntables 303, and the turntables 303 push the partition plate 301 through the first stud 302 to make it move within the protective cover 3, adjusting the size of the inner cavity. Then start the motor 504 to control the rotation of the second stud 502, and then drive the protective cover 3 to move in the vertical direction through the connecting plate 306, so that the protective cover 3 tightly presses on the sealing gasket 101. Then rotate the rocker 405, and the rocker 405 drives the screw rod 407 to rotate through the first bevel gear 406 and the second bevel gear 408, and then the push rod 402 descends. The push rod 402 further pushes the pressing plate 403 to press the die-casting part. Finally, start the air pump 2, and the air pump 2 inflates the inside of the die-casting part through the air outlet pipe 201, thus forming an airtight detection operation. When the air pressure inside the protective cover 3 fluctuates, it will be displayed through the pressure gauge 305.

[0042] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0043] The electrical components appearing in this text are all electrically connected to the external main controller and the 220V mains power supply, and the main controller can be a conventional known device such as a computer for control. The detailed descriptions of known functions and known components are omitted in the specific implementation manners of the present disclosure. To ensure the compatibility of the device, the operating means adopted are consistent with the parameters of market instruments.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An airtightness detection device for die-castings, characterized in that, Comprising: A workbench (1), on the upper surface of which a sealing gasket (101) is provided; An air pump (2), which is fixedly connected to the bottom end of the workbench (1), the right end of the air pump (2) is connected with an air outlet pipe (201), and the air outlet pipe (201) penetrates through the workbench (1) and the sealing gasket (101); A protective cover (3), which is located above the sealing gasket (101), on both the left and right sides inside the protective cover (3) there are slidingly connected partition plates (301), at one end of the two partition plates (301) away from each other there is a first stud (302) rotatably connected, at one end of the two first studs (302) away from each other there is a turntable (303), below the first stud (302) there is a guide rod (304), at one end of the two guide rods (304) close to each other there is a partition plate (301) fixedly connected, the protective cover (3) sleeves the first stud (302) and the guide rod (304), on the upper end of the protective cover (3) there is a pressure gauge (305), and at the rear end of the protective cover (3) there is a connecting plate (306); A fixing component (4), which is located inside the protective cover (3); A lifting component (5), which is located at the rear side of the protective cover (3).

2. The airtightness detection device for die-castings according to claim 1, wherein: The lifting component (5) includes: A fixing plate (501), which is a U-shaped plate, and the bottom end of the fixing plate (501) is fixedly connected to the workbench (1); A second stud (502), the upper and lower ends of which are rotatably connected to the fixing plate (501), on both the left and right sides of the second stud (502) there are positioning columns (503), and the upper and lower ends of the positioning columns (503) are fixedly connected to the fixing plate (501); A motor (504), which is fixedly connected to the upper end of the fixing plate (501), and the upper end of the second stud (502) is fixedly connected to the motor (504).

3. The airtightness detection device for die-castings according to claim 2, characterized in that: The connecting plate (306) sleeves the second stud (502) and the positioning column (503).

4. An airtightness detection device for die-cast parts according to claim 1, characterized in that: The fixing component (4) includes: A fixing column (401), which is fixedly connected to the protective cover (3), inside which a push rod (402) is slidingly connected, at the bottom end of the push rod (402) there is a pressing plate (403), and on the bottom surface of the pressing plate (403) there is a buffer gasket (404); A rocker (405), which is rotatably connected to the upper left end of the fixing column (401), and the right end of the rocker (405) is connected with a first bevel gear (406); A screw rod (407), which is rotatably connected to the upper end inside the fixing column (401), and on the upper surface of the screw rod (407) there is a second bevel gear (408) fixedly connected.

5. The airtightness detection device for die-castings according to claim 4, characterized in that: The first bevel gear (406) meshes with the second bevel gear (408).

6. The airtightness detection device for die-castings according to claim 4, characterized in that: The push rod (402) sleeves the screw rod (407).

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