Ceramic carrier multi-channel negative pressure leak detector

Abstract

The utility model provides a kind of ceramic carrier multichannel negative pressure leak detector, comprising: base, the upper side surface of the base is fixedly connected with support frame, the upper end inside of the support frame is fixedly installed with pneumatic cylinder, the inboard of the support frame is also provided with multichannel leak detection mechanism for batch detection, the inside of the base is provided with rotating mechanism for quickly switching channel, compared with prior art, the utility model has the beneficial effects as follows: by setting multichannel leak detection mechanism, multiple upper sealing cavities and lower sealing cavities form multiple detection channels, multiple measured pieces can be detected simultaneously, significantly improve detection efficiency, especially suitable for the rapid leak detection demand of batch production, 180 ° station switching is realized by rotating mechanism, unloading operation of another detection channel can be carried out while detecting, greatly shorten equipment idle time, improve production efficiency, further improve the applicability of batch production.

Description

Technical Field

[0001] This utility model belongs to the field of negative pressure leak detection, and specifically relates to a ceramic carrier multi-channel negative pressure leak detector. Background Technology

[0002] A negative pressure leak detector is a device used to detect leaks in sealed components or systems. Its working principle involves creating a negative pressure environment inside the tested component by drawing a vacuum, and then using a pressure sensor to monitor pressure changes to determine the presence and extent of a leak. This device typically consists of a vacuum pump, pressure sensor, control unit, and display module. However, traditional single-channel leak detectors suffer from low efficiency in practical applications, primarily in batch testing. Because only a single workpiece can be tested at a time, multiple manual interventions are required, leading to low efficiency and extended testing cycles, making it unsuitable for large-scale production testing scenarios. Therefore, we aim to design a ceramic carrier multi-channel negative pressure leak detector to solve this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a ceramic carrier multi-channel negative pressure leak detector to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a ceramic carrier multi-channel negative pressure leak detector, comprising: a base, a support frame fixedly connected to the upper surface of the base, a cylinder fixedly installed inside the upper end of the support frame, a multi-channel leak detection mechanism for batch testing also provided inside the support frame, and a rotation mechanism for quickly switching channels provided inside the base. The multi-channel leak detection mechanism includes a connecting plate and a receiving plate. The upper surface of the connecting plate is fixedly connected to the telescopic end of the cylinder. Slider blocks are fixedly connected to the left and right ends of the connecting plate. Several upper sealing cavities are fixedly installed on the lower surface of the connecting plate through several connecting blocks. An air extraction pipe is provided on the upper side of the upper sealing cavity. The lower sealing cavity is fixedly installed on the upper surface of the receiving plate. Several of the upper sealing cavities are also equipped with negative pressure sensors. The upper front side of the support frame is also equipped with a display device that is communicatively connected to the five negative pressure sensors. This device is used to centrally display the negative pressure data of each station. By setting up a multi-channel leak detection mechanism, multiple detection channels are formed by multiple upper and lower sealing cavities, which can simultaneously detect multiple test pieces, significantly improving detection efficiency. This is especially suitable for the rapid leak detection needs of mass production.

[0005] In a preferred embodiment, the inner side of the support frame is provided with a sliding groove, and the sliders at the left and right ends of the connecting plate are slidably fitted into the inside of the sliding groove.

[0006] In a preferred embodiment, the number of lower sealing cavities is twice that of upper sealing cavities, and they are arranged in two groups in parallel and equally divided sections.

[0007] In a preferred embodiment, an installation groove is provided on the upper surface of the lower sealing cavity, and a sealing strip is fixedly bonded to the inside of the installation groove by high-temperature adhesive.

[0008] In a preferred embodiment, a right-angle fixing block is fixedly connected to the upper surface of the base, and a fixing shaft is fixedly connected to the right-angle fixing block. A roller is sleeved on the outer side of the fixing shaft through a bearing. The roller contacts the lower surface of the receiving plate, and the roller supports the receiving plate to prevent the receiving plate from deforming after being transmitted by the pressure of the cylinder.

[0009] In a preferred embodiment, the rotating mechanism includes a support shaft, the lower end of which is connected to the base via a bearing, and the upper end of which is fixedly connected to a receiving plate. A secondary gear is fixedly sleeved on the outer side of the support shaft. The rotating mechanism enables 180° workstation switching, allowing loading and unloading operations of another inspection channel to be performed simultaneously with the inspection, significantly reducing equipment downtime, improving production efficiency, and further enhancing the applicability to mass production.

[0010] In a preferred embodiment, a drive motor is fixedly installed on the upper inner side of the base, and a main gear is fixedly connected to the output shaft of the drive motor through a coupling, and the main gear meshes with the auxiliary gear.

[0011] As a preferred embodiment, the transmission ratio between the main gear and the auxiliary gear is 1:2, so that the auxiliary gear rotates 180° for every revolution of the main gear. Through the precise design of the gear ratio, the continuous rotation of the main gear is converted into the 180° movement of the auxiliary gear, which is suitable for occasions that require periodic switching or precise positioning, and ensures the synchronization of actions and the accuracy of position repeatability.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are: 1. By setting up a multi-channel leak detection mechanism, multiple upper and lower sealing cavities are used to form multiple detection channels, which can simultaneously detect multiple test pieces, significantly improving detection efficiency, and is especially suitable for the rapid leak detection needs of mass production.

[0013] 2. The rotating mechanism enables 180° station switching, allowing loading and unloading operations on another inspection channel to be performed simultaneously with the inspection, significantly reducing equipment downtime, improving production efficiency, and further enhancing the applicability for mass production. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional view of the overall structure of a ceramic carrier multi-channel negative pressure leak detector according to this utility model.

[0016] Figure 2 This is a front perspective view of a ceramic carrier multi-channel negative pressure leak detector according to the present invention.

[0017] Figure 3 This is an exploded view of the lower sealing cavity of a ceramic carrier multi-channel negative pressure leak detector according to this utility model.

[0018] Figure 4 This is a front view of a ceramic carrier multi-channel negative pressure leak detector according to this utility model.

[0019] Figure 5 This is a partial right view of a ceramic carrier multi-channel negative pressure leak detector according to the present invention.

[0020] In the diagram, 1-base, 2-support frame, 3-multi-channel leak detection mechanism, 4-rotation mechanism; 21-Slide groove; 31-Connecting plate, 32-Upper sealing cavity, 33-Evacuation pipe, 34-Receiving plate, 35-Lower sealing cavity, 351-Mounting groove, 352-Sealing strip, 36-Right angle fixing block, 37-Roller; 41-Support shaft, 42-Secondary gear, 43-Drive motor, 44-Main gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 As the first embodiment of this utility model: A ceramic carrier multi-channel negative pressure leak detector includes: a base 1, a support frame 2 fixedly connected to the upper surface of the base 1, a cylinder fixedly installed inside the upper end of the support frame 2, a multi-channel leak detection mechanism 3 for batch testing is also provided inside the support frame 2, and a rotating mechanism 4 for quickly switching channels is provided inside the base 1. The multi-channel leak detection mechanism 3 includes a connecting plate 31 and a receiving plate 34. The upper surface of the connecting plate 31 is fixedly connected to the telescopic end of the cylinder. The left and right ends of the connecting plate 31 are fixedly connected to sliders. The lower surface of the connecting plate 31 is fixedly installed with several upper sealing cavities 32 through several connecting blocks. An air extraction pipe 33 is provided on the upper side of the upper sealing cavity 32. The upper surface of the receiving plate 34 is fixedly installed with a lower sealing cavity 35. Several upper sealing cavities 32 are also equipped with negative pressure sensors. The upper front of the support frame 2 is also equipped with a display device that communicates with the five negative pressure sensors to centrally display the negative pressure data of each station. By setting up a multi-channel leak detection mechanism 3, multiple detection channels are formed by multiple upper sealing cavities 32 and lower sealing cavities 35, which can detect multiple test pieces at the same time, significantly improving detection efficiency. It is especially suitable for the rapid leak detection needs of mass production.

[0023] The inner side of the support frame 2 is provided with a sliding groove 21, and the sliders at the left and right ends of the connecting plate 31 are slidably fitted into the inside of the sliding groove 21.

[0024] The number of lower sealing cavities 35 is twice that of upper sealing cavities 32, and they are arranged in two groups in parallel and equally divided sections.

[0025] An installation groove 351 is provided on the upper surface of the lower sealing cavity 35, and a sealing strip 352 is fixedly bonded inside the installation groove 351 with high temperature adhesive.

[0026] A right-angle fixing block 36 is fixedly connected to the upper surface of the base 1. A fixing shaft is fixedly connected to the right-angle fixing block. A roller 37 is sleeved on the outside of the fixing shaft through a bearing. The roller 37 contacts the lower surface of the receiving plate 34. The roller 37 supports the receiving plate 34 and prevents the receiving plate 34 from deforming after being transmitted by the pressure of the cylinder.

[0027] Specifically, when testing a ceramic workpiece, the workpiece is first placed inside the lower sealing cavity 35. Then, the cylinder is activated, and the extension end of the cylinder drives the connecting plate 31 and the sliders at both ends to move within the groove 21 of the support frame 2, reducing friction between the connecting plate 31 and the support frame 2. When the connecting plate 31 descends, it drives the upper sealing cavity 32 to move downward, compressing the sealing strip 352 to deform and fill the gap between the upper sealing cavity 32 and the lower sealing cavity 35, forming a sealed environment. Then, an external air pump is activated, and the air pump creates a negative pressure state between the upper sealing cavity 32 and the lower sealing cavity 35 through the external connecting pipe and the air extraction pipe 33. Under negative pressure, if there is a leak in the workpiece, external air seeps into the sealing cavity through the defect, and the pressure inside the cavity rises. The pressure change is monitored by the sensor to determine the sealing performance. At this time, the pressure change curve recorded in real time by the display device can be used to determine the sealing performance. That is, if the pressure remains stable, it indicates that the tested object is qualified for sealing; conversely, if the pressure rises significantly, it indicates that there is a leak. After the test is completed, the cylinder is reset to release the seal.

[0028] Please see Figure 1 as well as Figure 5 As a second embodiment of this utility model: The rotating mechanism 4 includes a support shaft 41. The lower end of the support shaft 41 is connected to the base 1 via a bearing, and the upper end of the support shaft 41 is fixedly connected to the receiving plate 34. A secondary gear 42 is fixedly sleeved on the outer side of the support shaft 41. The rotating mechanism 4 enables 180° work position switching, allowing loading and unloading operations of another inspection channel to be performed simultaneously with the inspection, significantly reducing equipment downtime, improving production efficiency, and further enhancing the applicability of mass production.

[0029] A drive motor 43 is fixedly installed on the upper side of the inside of the base 1. A main gear 44 is fixedly connected to the output shaft of the drive motor 43 through a coupling. The main gear 44 meshes with the auxiliary gear 42.

[0030] The transmission ratio of the main gear 44 to the auxiliary gear 42 is 1:2. This means that the auxiliary gear 42 rotates 180° for every revolution of the main gear 44. Through the precise design of the gear ratio, the continuous rotation of the main gear 44 is converted into the 180° movement of the auxiliary gear 42. This is suitable for occasions that require periodic switching or precise positioning, ensuring the synchronization of actions and the accuracy of position repeatability.

[0031] Based on the above embodiments, further, when the sealing test is performed in the lower sealing cavity 35 of the first row, the remaining ceramic workpieces to be tested can be placed inside the lower sealing cavity 35 of the second row. Then, after the sealing test of the first row is completed, the drive motor 43 is started. The output shaft of the drive motor 43 drives the main gear 44 to rotate. While the main gear 44 rotates one revolution, it drives the secondary gear 42, the support shaft 41 and the receiving plate 34 to rotate 180°, so that the first row and the second row complete the workstation switch. Then, the ceramic workpieces in the first row after the switch are unloaded and loaded, which greatly shortens the idle time of the equipment and improves the production efficiency.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ceramic carrier multi-channel negative pressure leak detector, comprising: The base (1) is characterized in that a support frame (2) is fixedly connected to the upper surface of the base (1), a cylinder is fixedly installed inside the upper end of the support frame (2), a multi-channel leak detection mechanism (3) for batch detection is also provided inside the support frame (2), and a rotating mechanism (4) for quick channel switching is provided inside the base (1). The multi-channel leak detection mechanism (3) includes a connecting plate (31) and a receiving plate (34). The upper surface of the connecting plate (31) is fixedly connected to the telescopic end of the cylinder. The left and right ends of the connecting plate (31) are fixedly connected to sliders. The lower surface of the connecting plate (31) is fixedly installed with several upper sealing cavities (32) through several connecting blocks. An air extraction pipe (33) is provided on the upper side of the upper sealing cavity (32). The upper surface of the receiving plate (34) is fixedly installed with a lower sealing cavity (35). Several of the upper sealing cavities (32) are also equipped with negative pressure sensors, and the upper front side of the support frame (2) is also equipped with a display device that is connected to the five negative pressure sensors for centralized display of the negative pressure data of each workstation.

2. The ceramic carrier multi-channel negative pressure leak detector as claimed in claim 1, wherein: The inner side of the support frame (2) is provided with a sliding groove (21), and the sliders at the left and right ends of the connecting plate (31) slide and fit into the inside of the sliding groove (21).

3. The ceramic carrier multi-channel negative pressure leak detector as claimed in claim 1, wherein: The number of the lower sealing cavities (35) is twice that of the upper sealing cavities (32), and they are arranged in two groups in parallel and equally divided sections.

4. A ceramic carrier multi-channel negative pressure leak detector as claimed in claim 3, wherein: The upper surface of the lower sealing cavity (35) is provided with an installation groove (351), and a sealing strip (352) is fixedly bonded inside the installation groove (351) by high temperature adhesive.

5. The ceramic carrier multi-channel negative pressure leak detector as claimed in claim 1, wherein: A right-angle fixing block (36) is fixedly connected to the upper surface of the base (1), and a fixing shaft is fixedly connected to the right-angle fixing block (36). A roller (37) is sleeved on the outside of the fixing shaft through a bearing, and the roller (37) is in contact with the lower surface of the receiving plate (34).

6. A ceramic carrier multi-channel negative pressure leak detector as defined in claim 1, wherein: The rotating mechanism (4) includes a support shaft (41), the lower end of which is connected to the base (1) via a bearing, the upper end of which is fixedly connected to the receiving plate (34), and a secondary gear (42) is fixedly sleeved on the outer side of the support shaft (41).

7. A ceramic carrier multi-channel negative pressure leak detector as defined in claim 6, wherein: A drive motor (43) is fixedly installed on the upper side of the base (1). A main gear (44) is fixedly connected to the output shaft of the drive motor (43) through a coupling. The main gear (44) meshes with the auxiliary gear (42).

8. A ceramic carrier multi-channel negative pressure leak detector as defined in claim 7, wherein: The transmission ratio of the main gear (44) to the auxiliary gear (42) is 1:2, which means that the auxiliary gear (42) rotates 180° for every one revolution of the main gear (44).

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