Airtightness detection machine

Abstract

The utility model relates to the technical field of air tightness detection, and discloses an air tightness detection machine, which comprises a detection table; the rotating structure is arranged on the detection table, and the rotating structure is used for adjusting the position of a rotating product; the lower mold is arranged on the rotating structure, and the lower mold is used for bearing a product; the inverted L-shaped frame is arranged on the detection table, and the inverted L-shaped frame is used for bearing and supporting; and the sealing structure is arranged on the inverted-L-shaped frame and movably connected with the lower mold, the sealing structure is used for sealing the lower mold, a movable hole is formed in the top end of the detection table, an annular groove is formed in the top end of the detection table, and the cross section of the movable hole and the cross section of the annular groove are concentric circles. According to the utility model, a plurality of products can be conveniently detected in sequence, the automation degree is high, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight detection, in particular to an airtight detection machine. Background Art

[0002] An airtightness testing machine is a device that determines whether the product under test performs well by testing its sealing performance. It tests the product under test through a pressurized system or a vacuum system to detect the airtightness of the product under test. It is widely used in the automotive, aviation, chemical, medical and electronic fields to ensure product quality and safety.

[0003] The principle of a traditional airtight testing machine is to place the product in a testing lower mold, drive the lower mold downward with a cylinder to wrap the product, inject compressed air into the mold, and achieve testing by measuring the pressure of the compressed air. However, the inventors found that most existing airtight testing machines can only perform manual testing of a single product, have a low degree of automation, and are time-consuming and labor-intensive. Therefore, we proposed an airtight testing machine. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the existing technology, the utility model provides an airtight detection machine, which has the advantages of conveniently detecting multiple products in sequence, high degree of automation, saving time and effort, etc., and solves the problem that most existing airtight detection machines can only manually detect a single product, have a low degree of automation, and are time-consuming and labor-intensive.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of conveniently testing multiple products in sequence, with a high degree of automation, saving time and labor, the utility model provides the following technical solutions: an airtightness testing machine, comprising: a testing table;

[0008] A rotating structure, which is disposed on the inspection table and is used to adjust the position of the rotating product;

[0009] A lower mold, the lower mold is arranged on the rotating structure, and the lower mold is used to carry the product;

[0010] An inverted L-shaped frame, the inverted L-shaped frame is arranged on the inspection table, and the inverted L-shaped frame is used for bearing and supporting;

[0011] A sealing structure is arranged on the inverted L-shaped frame and is movably connected to the lower mold, and the sealing structure is used to seal the lower mold.

[0012] As a preferred technical solution of the utility model, a movable hole is opened inside the top of the detection platform, and an annular groove is opened inside the top of the detection platform. The cross-sections of the movable hole and the annular groove are concentric circles, and the inner cavities of the movable hole and the annular groove are movably connected with the rotating structure to facilitate the installation of the rotating structure.

[0013] As a preferred technical solution of the utility model, the rotating structure includes a stepping motor, the stepping motor is fixedly connected to the bottom end of the detection platform, and the output shaft of the stepping motor is rotationally connected to the inner cavity of the movable hole;

[0014] A rotating rod is fixedly installed on the output shaft of the stepper motor, and a rotating disk is fixedly installed on one end of the rotating rod away from the output shaft, and an arc-shaped limiting plate is fixedly installed on the bottom end of the rotating disk, and the arc-shaped limiting plate is movably connected with the inner cavity of the annular groove, and a positioning boss is fixedly installed on the top of the rotating disk, and the outer surface of the positioning boss is movably connected with the lower mold. By assembling the lower molds onto the positioning bosses one by one, and placing the product in the lower mold, the positioning cylinder is clamped on the positioning bosses, and then the stepper motor is started. At this time, the output shaft of the stepper motor drives the rotating rod to rotate in the inner cavity of the movable hole, and the rotating rod drives the rotating disk to rotate, and the rotating disk drives the positioning boss to rotate, and the positioning boss drives the lower mold carrying the product to rotate until the lower mold carrying the product is rotated to the bottom of the upper mold. During this period, the rotating disk drives the arc-shaped limiting plate to rotate in the inner cavity of the annular groove, and plays a role of limiting guide, while ensuring that the rotation of the rotating disk is more stable, thereby facilitating the rotation and adjustment of the position of the product, and then facilitating the detection of multiple products in sequence.

[0015] As a preferred technical solution of the utility model, a positioning cylinder is fixedly installed on the lower mold, and the inner cavity of the positioning cylinder is movably engaged with the outer surface of the positioning boss to facilitate the assembly of the lower mold onto the positioning boss.

[0016] As a preferred technical solution of the utility model, the inner cavity diameter and size of the positioning cylinder are adapted to the outer surface diameter and size of the positioning boss, so that the positioning boss fits better when it is clamped in the positioning cylinder.

[0017] As a preferred technical solution of the utility model, the sealing structure includes a cylinder, which is fixedly connected to the inverted L-shaped frame, the piston rod on the cylinder passes through the interior of the inverted L-shaped frame, and a connecting column is fixedly installed at one end of the extended part, and a guide is provided on the outer surface of the connecting column, and an upper mold is fixedly installed at the end of the connecting column away from the piston rod, and the upper mold and the lower mold are movably connected and matched, and the cylinder is started. At this time, the piston rod on the cylinder drives the connecting column to move, and the connecting column drives the upper mold to move and move closer to the lower mold until the upper mold enters the lower mold to wrap the product. During this period, the guide plays the role of limiting guide, and then compressed air is injected into the mold to measure the pressure of the compressed air to achieve detection, thereby facilitating product detection, and has a high degree of automation, saving time and effort.

[0018] As a preferred technical solution of the utility model, the guide includes an extension plate, one end of the extension plate is fixedly connected to the outer surface of the connecting column, a limiting rod passes through the interior of the extension plate, the bottom end of the limiting rod is fixedly connected to the detection table, the top end of the limiting rod is fixedly connected to the inverted L-shaped frame, and the extension plate is driven to move along the outer surface of the limiting rod through the connecting column so as to play a role of limiting guide.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the utility model provides an airtightness detection machine, which has the following beneficial effects:

[0021] 1. The airtightness testing machine starts the cylinder. At this time, the piston rod on the cylinder drives the connecting column to move, and the connecting column drives the upper mold to move and move toward the lower mold until the upper mold enters the lower mold to wrap the product. During this period, the connecting column drives the extension plate to move along the outer surface of the limit rod and plays a role in limit guide. Then compressed air is injected into the mold to measure the pressure of the compressed air for detection. Then repeat the above steps to detect the products in the lower mold on the turntable in turn, so as to facilitate the detection of multiple products in turn, with a high degree of automation, saving time and effort.

[0022] 2. The airtightness detection machine assembles the lower mold onto the positioning boss one by one, and places the product in the lower mold. At this time, the positioning cylinder is clamped on the positioning boss, and then the stepper motor is started. At this time, the output shaft of the stepper motor drives the rotating rod to rotate in the inner cavity of the movable hole, and the rotating rod drives the turntable to rotate, the turntable drives the positioning boss to rotate, and the positioning boss drives the lower mold carrying the product to rotate until the lower mold carrying the product is rotated to just below the upper mold. During this period, the turntable drives the arc-shaped limit plate to rotate in the inner cavity of the annular groove, and plays a role of limit guide, while ensuring that the turntable rotates more stably, thereby facilitating the rotation and adjustment of the position of the product, and then facilitating the detection of multiple products in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the utility model removing the rotating structure and the lower mold structure;

[0025] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 4 It is a schematic diagram of the exploded structure of the rotating structure and the lower mold of the utility model.

[0027] In the figure: 1. testing table; 11. movable hole; 12. annular groove; 2. rotating structure; 21. stepping motor; 22. rotating rod; 23. turntable; 24. arc-shaped limit plate; 25. positioning boss; 3. lower mold; 31. positioning cylinder; 4. inverted L-shaped frame; 5. sealing structure; 51. cylinder; 52. connecting column; 53. upper mold; 54. extension plate; 55. limit rod. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] Reference Figure 1-4 , provides an airtightness detection machine, comprising: a detection table 1;

[0030] A rotating structure 2, which is disposed on the testing platform 1 and is used to adjust the position of the rotating product;

[0031] A lower mold 3, which is disposed on the rotating structure 2 and is used to carry the product;

[0032] An inverted L-shaped frame 4 is provided on the testing platform 1 and is used for bearing and supporting;

[0033] The sealing structure 5 is arranged on the inverted L-shaped frame 4 and is movably connected to the lower mold 3 . The sealing structure 5 is used to seal the lower mold 3 .

[0034] A movable hole 11 is opened inside the top of the detection platform 1, and an annular groove 12 is opened inside the top of the detection platform 1. The cross-sections of the movable hole 11 and the annular groove 12 are concentric circles, and the inner cavities of the movable hole 11 and the annular groove 12 are movably connected to the rotating structure 2.

[0035] The rotating structure 2 includes a stepping motor 21, the stepping motor 21 is fixedly connected to the bottom end of the detection platform 1, and the output shaft of the stepping motor 21 is rotationally connected to the inner cavity of the movable hole 11;

[0036] A rotating rod 22 is fixedly mounted on the output shaft of the stepper motor 21, a rotating disc 23 is fixedly mounted on one end of the rotating rod 22 away from the output shaft, an arc-shaped limiting plate 24 is fixedly mounted on the bottom end of the rotating disc 23, the arc-shaped limiting plate 24 is movably connected to the inner cavity of the annular groove 12, a positioning boss 25 is fixedly mounted on the top end of the rotating disc 23, and the outer surface of the positioning boss 25 is movably connected to the lower mold 3.

[0037] A positioning cylinder 31 is fixedly mounted on the lower mold 3 , and the inner cavity of the positioning cylinder 31 is movably engaged with the outer surface of the positioning protrusion 25 .

[0038] The inner diameter and size of the positioning cylinder 31 are matched with the outer diameter and size of the positioning boss 25 .

[0039] The sealing structure 5 includes a cylinder 51, which is fixedly connected to the inverted L-shaped frame 4. The piston rod on the cylinder 51 passes through the interior of the inverted L-shaped frame 4, and a connecting column 52 is fixedly installed at one end of the extended part. A guide is provided on the outer surface of the connecting column 52. An upper mold 53 is fixedly installed on the end of the connecting column 52 away from the piston rod. The upper mold 53 is movably connected to the lower mold 3 and fits with each other.

[0040] The guide includes an extension plate 54, one end of which is fixedly connected to the outer surface of the connecting column 52, a limiting rod 55 passes through the interior of the extension plate 54, the bottom end of the limiting rod 55 is fixedly connected to the detection table 1, and the top end of the limiting rod 55 is fixedly connected to the inverted L-shaped frame 4.

[0041] Working principle: by assembling the lower mold 3 onto the positioning boss 25 one by one, and placing the product in the lower mold 3, the positioning cylinder 31 is clamped on the positioning boss 25, and then the stepper motor 21 fixed on the detection table 1 is started, and the output shaft of the stepper motor 21 drives the rotating rod 22 fixed on the output shaft to rotate in the inner cavity of the movable hole 11, and the rotating rod 22 drives the turntable 23 to rotate, and the turntable 23 drives the positioning boss 25 to rotate, and the positioning boss 25 drives the lower mold 3 carrying the product to rotate until the lower mold 3 carrying the product is rotated to the bottom of the upper mold 53. During this period, the turntable 23 drives the arc-shaped limit plate 24 to rotate in the inner cavity of the annular groove 12, and plays a role of limit guide, while ensuring that the turntable 23 rotates more stably, so as to facilitate the rotation and adjustment of the position of the product, and then facilitate the detection of multiple products in sequence;

[0042] Then, by starting the cylinder 51 fixed on the inverted L-shaped frame 4, the piston rod on the cylinder 51 drives the connecting column 52 fixed on the piston rod to move, and the connecting column 52 drives the upper mold 53 to move and move closer to the lower mold 3 until the upper mold 53 enters the lower mold 3 to wrap the product. During this period, the connecting column 52 drives the extension plate 54 to move along the outer surface of the limit rod 55, and plays a role in limiting guidance. Then compressed air is injected into the mold to measure the pressure of the compressed air for detection, and then the above-mentioned operation steps are repeated to detect the products in the lower mold 3 on the turntable 23 in turn, so as to facilitate the detection of multiple products in turn, and the degree of automation is high, saving time and labor. The device is not only convenient for detecting multiple products in turn, but also has a high degree of automation, saving time and labor.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An airtightness detection machine, characterized in that: It comprises: a testing platform (1); A rotating structure (2), the rotating structure (2) being arranged on the detection platform (1), and the rotating structure (2) being used to adjust the position of the rotating product; A lower mold (3), the lower mold (3) being arranged on the rotating structure (2), and the lower mold (3) being used to carry the product; An inverted L-shaped frame (4), the inverted L-shaped frame (4) being arranged on the detection platform (1), and the inverted L-shaped frame (4) being used for bearing and supporting; A sealing structure (5), wherein the sealing structure (5) is arranged on the inverted L-shaped frame (4) and is movably connected to the lower mold (3), and the sealing structure (5) is used to seal the lower mold (3).

2. The airtightness detection machine according to claim 1, characterized in that: A movable hole (11) is provided inside the top of the detection platform (1), and an annular groove (12) is provided inside the top of the detection platform (1). The cross-sections of the movable hole (11) and the annular groove (12) are concentric circles, and the inner cavities of the movable hole (11) and the annular groove (12) are both movably connected to the rotating structure (2).

3. The airtightness detection machine according to claim 2, characterized in that: The rotating structure (2) comprises a stepping motor (21), the stepping motor (21) is fixedly connected to the bottom end of the detection platform (1), and the output shaft of the stepping motor (21) is rotationally connected to the inner cavity of the movable hole (11); A rotating rod (22) is fixedly mounted on the output shaft of the stepper motor (21); a rotating disc (23) is fixedly mounted on one end of the rotating rod (22) away from the output shaft; an arc-shaped limiting plate (24) is fixedly mounted on the bottom end of the rotating disc (23); the arc-shaped limiting plate (24) is movably connected to the inner cavity of the annular groove (12); a positioning boss (25) is fixedly mounted on the top end of the rotating disc (23); and the outer surface of the positioning boss (25) is movably connected to the lower mold (3).

4. The airtightness detection machine according to claim 3, characterized in that: A positioning cylinder (31) is fixedly mounted on the lower mold (3), and the inner cavity of the positioning cylinder (31) is movably engaged with the outer surface of the positioning protrusion (25).

5. The airtightness detection machine according to claim 4, characterized in that: The inner diameter and size of the positioning cylinder (31) are matched with the outer surface diameter and size of the positioning protrusion (25).

6. The airtightness detection machine according to claim 1, characterized in that: The sealing structure (5) comprises a cylinder (51), wherein the cylinder (51) is fixedly connected to the inverted L-shaped frame (4), a piston rod on the cylinder (51) passes through the interior of the inverted L-shaped frame (4), and a connecting column (52) is fixedly installed at one end of the extended portion, a guide is provided on the outer surface of the connecting column (52), an upper mold (53) is fixedly installed on the end of the connecting column (52) away from the piston rod, and the upper mold (53) is movably connected to the lower mold (3) and fits with each other.

7. The airtightness detection machine according to claim 6, characterized in that: The guide comprises an extension plate (54), one end of the extension plate (54) is fixedly connected to the outer surface of the connecting column (52), a limiting rod (55) passes through the interior of the extension plate (54), the bottom end of the limiting rod (55) is fixedly connected to the detection platform (1), and the top end of the limiting rod (55) is fixedly connected to the inverted L-shaped frame (4).

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