Air tightness detection equipment

Abstract

The utility model discloses air tightness detection equipment, which comprises a press fit mechanism, a feeding mechanism and a detection mechanism, the press fit mechanism comprises a press fit upper die and a press fit lower die, the press fit upper die comprises a driving structure, a first pressing plate, a second pressing plate and a plurality of adjusting structures, the second pressing plate is arranged between the first pressing plate and the press fit lower die, and the adjusting structures are arranged on the first pressing plate. A pressing area is formed between the second pressing plate and the pressing lower die, the multiple adjusting structures are distributed along the edge of the second pressing plate at intervals, the adjusting structures are connected with the first pressing plate and the second pressing plate respectively and used for adjusting the distance between the first pressing plate and the second pressing plate, and the driving structure is in driving connection with the first pressing plate and is driven by the driving structure to drive the second pressing plate to move. The first pressing plate can drive the second pressing plate to be close to or away from the pressing area through the adjusting structure; the feeding mechanism is arranged on one side of the press-fit mechanism and used for feeding and discharging the press-fit area. And the detection mechanism is arranged on one side of the pressing area and is used for carrying out air tightness detection on the workpieces in the pressing area. The air tightness detection effect is good.

Description

Technical Field

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

[0002] Air tightness testing equipment typically includes an upper and lower pressing mold. When air tightness testing is required, the operator places the product on the lower pressing mold and then presses the upper pressing mold onto the product, forming a closed chamber inside the product. The chamber is then filled with gas at a certain pressure and maintained for a period of time to reach a stable state. The gas supply is then cut off, maintaining a constant pressure inside the chamber. A pressure sensor is then used to record the pressure value in real time to test the air tightness of the product. However, if the upper and lower pressing molds are not in a parallel state, the chamber formed between the upper and lower pressing molds and the product will have poor sealing, thus affecting the air tightness test results. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an airtightness testing device with better airtightness testing effect.

[0004] An airtightness testing device according to an embodiment of the present invention includes a pressing mechanism, a feeding mechanism, and a testing mechanism. The pressing mechanism includes an upper pressing mold and a lower pressing mold. The upper pressing mold includes a driving structure, a first pressure plate, a second pressure plate, and multiple adjusting structures. The second pressure plate is disposed between the first pressure plate and the lower pressing mold, and a pressing area is formed between the second pressure plate and the lower pressing mold. The multiple adjusting structures are distributed at intervals along the edge of the second pressure plate. The adjusting structures are respectively connected to the first pressure plate and the second pressure plate and are used to adjust the distance between the first pressure plate and the second pressure plate. The driving structure is driven by the first pressure plate. Under the drive of the driving structure, the first pressure plate can drive the second pressure plate to move closer to or away from the pressing area through the adjusting structures. The feeding mechanism is disposed on one side of the pressing mechanism and is used to load and unload materials from the pressing area. The testing mechanism is disposed on one side of the pressing area and is used to perform airtightness testing on the workpieces in the pressing area.

[0005] An airtightness testing device according to an embodiment of the present utility model has at least the following technical effects:

[0006] In the airtightness testing equipment of this application, the workpiece is first placed in the pressing area of ​​the lower and upper pressing molds by a feeding mechanism, with the lower pressing mold carrying the workpiece. Then, the driving structure of the upper pressing mold drives the first pressure plate to move downward, causing the second pressure plate to move closer to the lower pressing mold and press onto the workpiece, forming a closed cavity between the second pressure plate, the workpiece, and the lower pressing mold. The airtightness of the product is then tested by a testing mechanism. Since the first and second pressure plates are connected by multiple adjustment structures, the relative distance between the edges of the first and second pressure plates is adjusted to ensure that the second pressure plate and the lower pressing mold are parallel. This results in good contact between the second pressure plate, the lower pressing mold, and the workpiece, leading to better sealing of the cavity formed between the upper and lower pressing molds and the workpiece, thus improving the testing effect of the airtightness testing equipment of this application.

[0007] According to some embodiments of the present invention, an airtightness testing device includes an adjustment structure comprising an adjustment bolt and an elastic connector. The adjustment bolt comprises a head and a rod connected together. The rod slidably passes through a second pressure plate and is threadedly connected to a first pressure plate. The upper end of the head abuts against the second pressure plate. The elastic connector is connected to the first pressure plate and the second pressure plate respectively and is used to provide elastic force to keep the upper end of the second pressure plate abutting against the head.

[0008] According to some embodiments of the present invention, an airtightness testing device has an elastic connector that is a spring. The spring is sleeved on the rod, and the upper and lower ends of the spring abut against the first pressure plate and the second pressure plate, respectively.

[0009] According to some embodiments of the present invention, an airtightness testing device includes a pressing mechanism that further includes a pressure sensor. The pressure sensor is located between the output end of the driving structure and the first pressure plate and is used to detect the pressure between the output end of the driving structure and the first pressure plate. The pressure sensor is electrically connected to the driving structure.

[0010] According to some embodiments of the present invention, an airtightness testing device includes a feeding mechanism comprising a robotic arm, a mounting frame, and an adsorption structure. The adsorption structure is used to adsorb workpieces. The mounting frame is connected to the execution end of the robotic arm and the adsorption structure at opposite ends in the horizontal direction, respectively. The robotic arm is used to drive the mounting frame to move horizontally, so that the adsorption structure enters or leaves the pressing area.

[0011] According to some embodiments of the present invention, an airtightness testing device has a mounting bracket that is rotatably connected to the execution end of a robotic arm about a vertical axis.

[0012] An airtightness testing device according to some embodiments of the present invention further includes a conveyor belt, which is disposed on one side of the pressing mechanism. The conveyor belt is used to transport workpieces and has loading and unloading areas. The loading mechanism can realize the transfer of workpieces between the loading and unloading areas and the pressing area.

[0013] According to some embodiments of the present invention, an airtightness testing device is provided on the conveyor belt, and a calibration zone is provided on the conveyor belt. The calibration zone is located in front of the loading and unloading area along the conveying direction of the conveyor belt. A calibration mechanism is provided in the calibration zone, which is used to calibrate the workpiece on the conveyor belt in the width direction of the conveyor belt.

[0014] According to some embodiments of the present invention, an airtightness testing device includes a calibration mechanism comprising two calibration members, with a calibration channel between the two calibration members allowing the workpiece to pass through, and the calibration channel being funnel-shaped with a gradually decreasing cross-sectional dimension along the conveying direction of the conveyor belt.

[0015] An airtightness testing device according to some embodiments of the present invention includes multiple pressing mechanisms arranged side by side along the conveyor belt conveying direction, and a manual position is provided on the side of the pressing mechanism away from the conveyor belt.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of an airtightness testing device according to one embodiment of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the upper pressing mold in the middle;

[0020] Figure 3 for Figure 1 A schematic diagram of the airtightness testing equipment from another perspective.

[0021] Figure label:

[0022] Pressing mechanism 100, pressing area 100a, upper pressing mold 110, driving structure 111, first pressure plate 112, second pressure plate 113, adjusting structure 114, adjusting bolt 114a, elastic connector 114b, lower pressing mold 120;

[0023] Feeding mechanism 200, robotic arm 210, mounting frame 220, adsorption structure 230;

[0024] Conveyor belt 300, calibration mechanism 310, calibration channel 310a, calibration component 311. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] The following is for reference. Figures 1 to 3 A detailed description of an airtightness testing device according to an embodiment of the present invention will be provided.

[0030] refer to Figures 1 to 3According to an embodiment of the present invention, an airtightness testing device includes a pressing mechanism 100, a feeding mechanism 200, and a testing mechanism. The pressing mechanism 100 includes an upper pressing mold 110 and a lower pressing mold 120. The upper pressing mold 110 includes a driving structure 111, a first pressing plate 112, a second pressing plate 113, and a plurality of adjusting structures 114. The second pressing plate 113 is disposed between the first pressing plate 112 and the lower pressing mold 120, and a pressing area 100a is formed between the second pressing plate 113 and the lower pressing mold 120. The plurality of adjusting structures 114 are distributed at intervals along the edge of the second pressing plate 113. 14 is connected to the first pressure plate 112 and the second pressure plate 113 respectively, and is used to adjust the distance between the first pressure plate 112 and the second pressure plate 113. The driving structure 111 is drivenly connected to the first pressure plate 112. Under the drive of the driving structure 111, the first pressure plate 112 can drive the second pressure plate 113 to move closer to or away from the pressing area 100a through the adjusting structure 114. The feeding mechanism 200 is set on one side of the pressing mechanism 100 and is used to load and unload the pressing area 100a. The detection mechanism is set on one side of the pressing area 100a and is used to perform airtightness detection on the workpiece in the pressing area 100a.

[0031] In the airtightness testing equipment of this application, the workpiece is first placed in the pressing area 100a of the lower pressing mold 120 and the upper pressing mold 110 by the feeding mechanism 200, and the lower pressing mold 120 carries the workpiece. Then, the first pressure plate 112 is driven to move downward by the driving structure 111 of the upper pressing mold 110, so as to drive the second pressure plate 113 to move closer to the lower pressing mold 120 and press it on the workpiece, so that a closed cavity is formed between the second pressure plate 113, the workpiece and the lower pressing mold 120. Then, the airtightness of the product is tested by the testing mechanism. Since the first pressure plate 112 and the second pressure plate 113 are connected by multiple adjustment structures 114, the relative distance between the edges of the first pressure plate 112 and the second pressure plate 113 can be adjusted by the adjustment structures 114 so that the second pressure plate 113 and the lower pressing mold 120 are in a parallel state. This results in good fit between the second pressure plate 113, the lower pressing mold 120 and the workpiece, and good sealing of the cavity formed between the upper pressing mold 110, the lower pressing mold 120 and the workpiece. As a result, the airtightness testing equipment of this application has a better testing effect.

[0032] refer to Figure 2 In some embodiments of this utility model, the adjusting structure 114 includes an adjusting bolt 114a and an elastic connector 114b. The adjusting bolt 114a includes a head and a rod connected together. The rod slidably passes through the second pressure plate 113 and is threadedly connected to the first pressure plate 112. The upper end of the head abuts against the second pressure plate 113. The elastic connector 114b is connected to the first pressure plate 112 and the second pressure plate 113 respectively, and is used to provide elastic force to keep the upper end of the second pressure plate 113 abutting the head.

[0033] It is understood that by turning the adjusting bolts 114a of each adjusting structure 114, the distance between each edge portion of the first pressure plate 112 and the second pressure plate 113 can be adjusted, so that the second pressure plate 113 always remains parallel to the pressing lower mold 120.

[0034] It is understandable that when the drive structure 111 drives the first pressure plate 112 to move downward so as to cause the second pressure plate 113 to press against the workpiece on the upper mold 110, since the elastic connector 114b connects the first pressure plate 112 and the second pressure plate 113 respectively, the elastic connector 114b can provide the second pressure plate 113 with an elastic force to press against the workpiece, thereby making the cavity formed between the second pressure plate 113, the lower mold 120 and the workpiece well sealed.

[0035] It is understandable that when the lower pressing mold 120 and the second pressing plate 113 are not in a parallel state, after the driving structure 111 drives the first pressing plate 112 to move downward so that the second pressing plate 113 abuts against the lower pressing mold 120, under the counter-push of the lower pressing mold 120, part of the elastic connecting piece 114b can retract so that the tilt state of the second pressing plate 113 can be adjusted to be parallel to the lower pressing mold 120, thereby realizing the automatic adjustment of the tilt angle of the second pressing plate 113.

[0036] Specifically, the second pressure plate 113 has a countersunk hole on the side near the lower die 120, and the head of the adjusting bolt 114a is accommodated in the countersunk hole. It can be understood that by providing a countersunk hole, and having the head of the adjusting bolt 114a accommodated within it, the probability of the adjusting bolt 114a contacting the lower die 120 or the workpiece can be reduced, thereby protecting the lower die 120 and the workpiece.

[0037] like Figure 2 As shown, in some embodiments, the elastic connector 114b is a spring, which is sleeved on the rod, and its upper and lower ends abut against the first pressure plate 112 and the second pressure plate 113, respectively. It is understood that by sleeved on the rod, the elastic deformation of the spring in the radial direction of the adjusting bolt 114a is reduced, ensuring that the spring can stably deform elastically along the axial direction of the adjusting bolt 114a, and improving the service life of the spring.

[0038] like Figure 2As shown, in some embodiments, the pressing mechanism 100 further includes a pressure sensor disposed between the output end of the drive structure 111 and the first pressure plate 112, and is used to detect the pressure between the output end of the drive structure 111 and the first pressure plate 112. The pressure sensor is electrically connected to the drive structure 111. It is understood that by setting a pressure sensor between the output end of the drive structure 111 and the first pressure plate 112 to detect the pressure applied to the first pressure plate 112 by the output end of the drive structure 111, the pressure between the first pressure plate 112 and the lower pressing die 120 is detected. When the actual pressure reaches a preset value, the pressure sensor controls the drive structure 111 to stop driving, so that the upper pressing die 110 and the workpiece are pressed tightly together. The setting of the pressure sensor can reduce the possibility of workpiece damage caused by excessive pressure between the upper pressing die 110 and the lower pressing die 120.

[0039] refer to Figure 1 and Figure 3 In some embodiments of this utility model, the feeding mechanism 200 includes a robotic arm 210, a mounting frame 220, and an adsorption structure 230. The adsorption structure 230 is used to adsorb workpieces. The mounting frame 220 is connected to the execution end of the robotic arm 210 and the adsorption structure 230 at opposite ends in the horizontal direction, respectively. The robotic arm 210 is used to drive the mounting frame 220 to move horizontally, so that the adsorption structure 230 enters or leaves the pressing zone 100a. It can be understood that the robotic arm 210 drives one end of the mounting frame 220 to move horizontally, so that the other end of the mounting frame 220 can drive the adsorption structure 230 to enter or leave the pressing zone 100a in the horizontal direction. Thus, the adsorption structure 230 can drive the workpiece to enter or leave the pressing zone 100a in the horizontal direction. The robotic arm 210 does not need to extend into the pressing zone 100a, so that the distance between the upper pressing mold 110 and the lower pressing mold 120 can be set smaller, thereby improving the structural compactness of the entire airtightness testing equipment.

[0040] like Figure 1 and Figure 3 As shown, in some embodiments, the mounting bracket 220 is rotatably connected to the execution end of the robotic arm 210 about a vertical axis. It is understood that the robotic arm 210 can drive the mounting bracket 220 to rotate about a vertical axis, thereby causing the mounting bracket 220 to drive the adsorption structure 230 to rotate about a vertical axis. This allows the adsorption structure 230 to drive the workpiece horizontally into or out of the pressing zone 100a. The feeding mechanism 200 has a relatively simple structure, executes quickly, and the robotic arm 210 does not need to move horizontally to drive the workpiece into or out of the pressing zone 100a. Furthermore, the entire feeding mechanism 200 occupies less space during operation.

[0041] refer to Figure 1In some embodiments of this utility model, the airtightness testing equipment further includes a conveyor belt 300, which is disposed on one side of the pressing mechanism 100. The conveyor belt 300 is used to transport workpieces, and it is provided with loading and unloading areas. The loading mechanism 200 can realize the transfer of workpieces between the loading and unloading areas and the pressing area 100a. It can be understood that by providing a conveyor belt 300 on one side of the pressing mechanism 100, the automatic transport of multiple workpieces can be realized, and the automatic transport of workpieces after testing can also be realized.

[0042] like Figure 1 As shown, in some embodiments, the conveyor belt 300 is further provided with a correction zone. Along the conveying direction of the conveyor belt 300, the correction zone is located in front of the loading / unloading zone. A correction mechanism 310 is provided within the correction zone. The correction mechanism 310 is used to correct the workpieces on the conveyor belt 300 in the width direction of the conveyor belt 300. It can be understood that by providing the correction mechanism 310 in the loading / unloading zone in front of the conveyor belt 300 in the conveying direction to correct the workpieces on the conveyor belt 300, and then placing the corrected workpieces on the pressing die 120 by the loading mechanism 200, the possibility of the workpieces on the pressing die 120 shifting position can be reduced.

[0043] like Figure 1 As shown, in one embodiment, the correction mechanism 310 includes two correction members 311, forming a correction channel 310a between the two correction members 311 that allows the workpiece to pass through. The correction channel 310a is funnel-shaped with a gradually decreasing cross-sectional dimension along the conveying direction of the conveyor belt 300. It is understood that by setting the correction channel 310a to a funnel shape with a gradually decreasing cross-sectional dimension along the conveying direction of the conveyor belt 300, during the movement of the workpiece along the correction channel 310a, the workpiece's position in the width direction of the conveyor belt 300 can be gradually corrected under the cooperative action of the two correction members 311, so that the subsequent feeding mechanism 200 can accurately grasp the workpiece on the conveyor belt 300.

[0044] like Figure 1 As shown, in some embodiments, the airtightness testing equipment includes multiple pressing mechanisms 100 arranged side-by-side along the conveying direction of the conveyor belt 300, with a manual position provided on the side of the pressing mechanism 100 facing away from the conveyor belt 300. It is understood that by providing a manual position on the side of the pressing mechanism 100 facing away from the conveyor belt 300, when retesting of some workpieces is required, the operator can be in the manual position to manually place the workpieces into the non-operating pressing mechanism 100 for testing, without the airtightness testing equipment needing to stop operating, thus ensuring the working efficiency of the airtightness testing equipment of this application.

[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An airtightness testing device, characterized in that, include: A pressing mechanism includes an upper pressing mold and a lower pressing mold. The upper pressing mold includes a driving structure, a first pressing plate, a second pressing plate, and multiple adjusting structures. The second pressing plate is disposed between the first pressing plate and the lower pressing mold, and a pressing area is formed between the second pressing plate and the lower pressing mold. The multiple adjusting structures are distributed at intervals along the edge of the second pressing plate. The adjusting structures are respectively connected to the first pressing plate and the second pressing plate and are used to adjust the distance between the first pressing plate and the second pressing plate. The driving structure is driven by the first pressing plate. Under the drive of the driving structure, the first pressing plate can drive the second pressing plate to move closer to or away from the pressing area through the adjusting structures. A feeding mechanism is located on one side of the pressing mechanism and is used for loading and unloading materials in the pressing area; The testing mechanism is located on one side of the pressing area and is used to test the airtightness of the workpiece in the pressing area.

2. The airtightness testing device according to claim 1, characterized in that, The adjustment structure includes an adjustment bolt and an elastic connector. The adjustment bolt includes a head and a rod connected together. The rod slidably passes through the second pressure plate and is threadedly connected to the first pressure plate. The upper end of the head abuts against the second pressure plate. The elastic connector is connected to both the first pressure plate and the second pressure plate and provides a spring force to keep the second pressure plate abutting against the upper end of the head.

3. The airtightness testing device according to claim 2, characterized in that, The elastic connector is a spring, which is sleeved on the rod, and the upper and lower ends of the spring abut against the first pressure plate and the second pressure plate, respectively.

4. The airtightness testing device according to claim 2, characterized in that, The pressing mechanism further includes a pressure sensor, which is located between the output end of the driving structure and the first pressure plate and is used to detect the pressure between the output end of the driving structure and the first pressure plate. The pressure sensor is electrically connected to the driving structure.

5. The airtightness testing device according to claim 1, characterized in that, The feeding mechanism includes a robotic arm, a mounting frame, and an adsorption structure. The adsorption structure is used to adsorb workpieces. The mounting frame is connected to the execution end of the robotic arm and the adsorption structure at opposite ends in the horizontal direction, respectively. The robotic arm is used to drive the mounting frame to move horizontally so that the adsorption structure enters or leaves the pressing area.

6. The airtightness testing device according to claim 5, characterized in that, The mounting bracket is rotatably connected to the actuator of the robotic arm about a vertical axis.

7. The airtightness testing device according to claim 1, characterized in that, It also includes a conveyor belt, which is located on one side of the pressing mechanism. The conveyor belt is used to transport workpieces and has loading and unloading areas. The loading mechanism can realize the transfer of workpieces between the loading and unloading areas and the pressing area.

8. The airtightness testing device according to claim 7, characterized in that, The conveyor belt is also provided with a correction zone. Along the conveying direction of the conveyor belt, the correction zone is located in front of the loading and unloading area. The correction zone is provided with a correction mechanism, which is used to correct the workpieces on the conveyor belt in the width direction of the conveyor belt.

9. The airtightness testing device according to claim 8, characterized in that, The correction mechanism includes two correction components, and a correction channel is formed between the two correction components to allow the workpiece to pass through. The correction channel is funnel-shaped with a cross-sectional dimension that gradually decreases along the conveying direction of the conveyor belt.

10. The airtightness testing device according to claim 7, characterized in that, It includes multiple pressing mechanisms arranged side by side along the conveying direction of the conveyor belt, and a manual position is provided on the side of the pressing mechanism opposite to the conveyor belt.

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