Inner leakage testing device

Abstract

The utility model discloses an inner leakage testing device, and relates to the field of automatic testing. Comprising a detection machine table, at least one detection station which is installed on the detection machine table and has a material clamping function, a multi-axis mechanical arm installed beside the detection machine table, floating type test assemblies installed at the two ends of the detection station, an inner leakage detection unit installed in the detection machine table and matched with the floating type test assemblies, and a controller, the multi-axis mechanical arm which is controlled by the controller to work places / takes materials towards the detection station; the floating type testing assembly controlled by the controller to work is provided with a two-axis moving mechanism moving in the axial direction and the width direction of the material level and a testing clamp installed on the two-axis moving mechanism. The device can automatically complete connection and separation of the test equipment and the workpiece port, can automatically carry out the detection process, reduces the intervention of manual operation, and reduces the influence of human factors on the test result, thereby greatly improving the test efficiency and the result accuracy, and improving the quality and consistency of the workpiece.

Description

Technical Field

[0001] The present application relates to the field of automated testing, and in particular to an internal leakage testing device. Background Art

[0002] In the current industrial production process, internal leakage testing of workpieces with hollow channels or flow channels, such as heat sinks, is usually completed by manual cooperation with testing equipment. The process of this type of internal leakage testing includes the installation and disassembly of the testing equipment and the workpiece port, the operation of the testing process, and the recording of the results. Although the existing technology can provide a certain degree of internal leakage detection capabilities, there are significant deficiencies and limitations because the entire process relies on manual operation.

[0003] First, the existing internal leakage test process is inefficient. The connection and separation of the workpiece port and the test equipment is a highly repetitive and time-consuming operation. Relying entirely on manual work not only takes a lot of time, but may also lead to improper assembly, thus affecting the accuracy and reliability of the test results. In addition, the manual operation of the detection process is easily affected by human factors, such as the operator's proficiency and concentration, which may lead to errors and inconsistencies in the test results.

[0004] Secondly, the recording and management of test results is also a major shortcoming in existing technologies. Since the result recording is mainly done manually, it is easy to have incomplete records, data loss or recording errors. This not only increases the complexity of subsequent data processing and analysis, but may also lead to deviations in quality control and production decisions, affecting the overall quality and performance of the workpiece.

[0005] In order to overcome these shortcomings of the existing technology, it is particularly important and urgent to develop a new technology that can realize automatic internal leakage testing. Utility Model Content

[0006] The purpose of this application is to overcome at least one of the shortcomings of the prior art and to provide an internal leakage testing device that can automatically complete the connection and separation of the test equipment and the workpiece port, automate the detection process, reduce manual intervention, reduce the impact of human factors on the test results, and automatically record and manage the test results, thereby greatly improving the test efficiency and the accuracy of the results, and improving the quality and consistency of the workpiece.

[0007] To achieve the above object, the present application discloses an internal leakage testing device, including a detection machine platform, at least one detection station with a material clamping function installed on the detection machine platform, a multi-axis robotic arm installed beside the detection machine platform, floating test components installed at both ends of the detection station, an internal leakage detection unit installed inside the detection machine platform and cooperating with the floating test components, and a controller. Among them, the multi-axis robotic arm controlled by the controller places / takes materials at the detection station; the floating test component controlled by the controller has a two-axis moving mechanism that moves along the axial and width directions of the material level and a test clamp installed on the two-axis moving mechanism; the test clamp has a fixed end and a test sealing end, and the test sealing end is connected to the internal leakage testing unit inside the machine platform through a pipeline; the internal leakage testing unit includes a detection pipeline, an air pump that is connected to the detection pipeline through an electric control valve and is used to generate a positive pressure air flow, the detection pipeline has branch paths that are the same as the number of detection stations, and the branch paths are connected to a pressure sensor installed inside the detection pipeline; the electric control valve and the pressure sensor are connected to the controller, the electric control valve is controlled by the controller, and the pressure sensor sends the pipeline air pressure value inside the branch path to the controller; the test sealing ends inside the two floating test components at both ends of the detection station are connected.

[0008] Further, the detection station has a bottom plate, a fixed side plate, and a movable side plate that is parallel and opposite to the fixed side plate. The fixed side plate and the movable side plate are spaced apart to form a material level for placing the workpiece, and the movable side plate is driven by a cylinder to realize clamping at the internal station of the material.

[0009] Even further, rubber blocks are provided on the side surfaces of the fixed side plate and the movable side plate for clamping the workpiece to prevent scratching or pinching the surface of the clamped workpiece.

[0010] Further, the two-axis moving mechanism includes a base plate installed on the detection machine platform through a guide rail and driven by a cylinder to realize horizontal linear movement, and a movable block installed on the base plate through a guide rail and driven by a cylinder to realize vertical linear movement; the test clamp is installed on the movable block and moves synchronously with the movable block.

[0011] In some embodiments, the air pump is connected to the detection pipeline through a high-pressure gas storage tank, and an electric control valve controlled by the controller is provided between the gas storage tank and the air pump. At the same time, the high-pressure gas storage tank has multiple air outlets, and the air outlets are connected to the corresponding branch paths through controlled electric control valves.

[0012] Compared with the prior art, the present application has at least the following beneficial effects:

[0013] 1. Automatic feeding and taking: The multi-axis robotic arm, under the control of the controller, realizes automatic feeding and taking of workpieces, reducing manual operation and improving the efficiency and consistency of the testing process.

[0014] 2. Flexible floating test component: The floating test component has a two-axis moving mechanism that moves along the axial and width directions. The test clamp is connected to the internal leakage test unit to ensure the sealing and stability of the test process, improving the flexibility and adaptability of the test.

[0015] 3. Efficient internal leakage detection unit: The internal leakage detection unit includes a detection pipeline, an air pump, and a pressure sensor, capable of performing simultaneous multi-station detection, greatly improving the detection efficiency and accuracy.

[0016] 4. Stable detection station design: The detection station includes a bottom plate, a fixed side plate, and a movable side plate driven by a cylinder, ensuring the stability of the workpiece during the detection process and avoiding air leakage caused by the movement or loosening of the workpiece, thereby causing detection errors.

[0017] The beneficial effects listed above do not exhaust all advantages. Other potential beneficial effects and detailed technical implementation manners will be further revealed in the embodiments or other description parts of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] After reading the following specific implementation manners in conjunction with the drawings, various aspects of the present disclosure will be better understood. In the drawings, the positions, sizes, and ranges of various structures shown sometimes do not represent the actual positions, sizes, and ranges, etc. In the drawings:

[0019] Figure 1 is a schematic structural diagram of an embodiment disclosed in this application.

[0020] Figure 2 is a schematic structural diagram of an embodiment disclosed in this application from another perspective, with the multi-axis robotic arm omitted in the figure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will describe the present disclosure with reference to the drawings, in which several embodiments of the present disclosure are shown. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and fully explain the protection scope of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0022] It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, for clarity, the sizes of some features may be deformed.

[0023] It should be understood that the terms in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. All terms used in the specification (including technical terms and scientific terms) have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification.

[0024] The singular forms “a,” “the,” and “said” used in the specification include plural forms unless clearly specified otherwise. The terms “comprising,” “including,” and “having” used in the specification indicate the presence of the claimed features, but do not preclude the presence of one or more other features. The term “and / or” used in the specification includes any and all combinations of one or more of the related listed items. Embodiment

[0025] This embodiment discloses an exemplary structure of an internal leakage testing device. In terms of structural composition, it includes a detection machine platform 1, a plurality of detection stations 2 with a material clamping function installed on the detection machine platform 1, a multi-axis robotic arm 3 installed beside the detection machine platform 1, floating test assemblies 4 installed at both ends of the detection stations 2, an internal leakage detection unit (not shown in the figure) installed inside the detection machine platform 1 and cooperating with the floating test assemblies 4, and a controller (not shown in the figure).

[0026] Specifically, the detection machine platform 1 is the basic platform of the entire device, used to support and fix each component. It is made of high-strength steel and its surface is treated with anti-corrosion to ensure that it will not be corroded during long-term use.

[0027] To better achieve its working purpose, a plurality of installation positions are provided inside the detection machine platform 1 for fixing the positions of pipelines and other components, ensuring the stability and reliability of the entire system.

[0028] Among them, during implementation, as a better option, the pipelines are fixed using metal clamps and support frames to prevent detection errors caused by pipeline expansion or displacement. The metal clamps are made of stainless steel, and the support frames are made of high-strength alloy materials to ensure their durability and stability.

[0029] In this embodiment, the detection stations 2 are installed on the detection machine platform 1 and have a material clamping function to fix the workpiece 5 to be tested.

[0030] Structurally, the detection station 2 is composed of a bottom plate (obscured and not shown in the figure), a fixed side plate 201, and a movable side plate 202 that is parallel and opposite to the fixed side plate 201. A material level 203 for placing the workpiece 5 is formed between the fixed side plate 201 and the movable side plate 202, and the movable side plate 202 is driven by a cylinder to clamp the workpiece 5 within the material level 203. To prevent scratching or pinching of the surface of the clamped workpiece 5, rubber blocks are provided on one side of the fixed side plate 201 and the movable side plate 202 that clamp the workpiece 5. These rubber blocks are made of wear-resistant rubber material, which not only ensures the clamping force but also prevents damage to the workpiece 5.

[0031] In this embodiment, the multi-axis robotic arm 3 is installed beside the detection machine table 1 and is controlled by a controller to perform feeding and picking operations.

[0032] Specifically, the multi-axis robotic arm 3 is a 6-axis robotic arm made of aluminum alloy material, which has the characteristics of high strength and lightweight. It can move precisely in multiple directions, ensuring the rapid and accurate positioning of the workpiece 5 and improving the detection efficiency.

[0033] It can be understood that each joint of the multi-axis robotic arm 3 is driven by a servo motor, and the servo motor is precisely controlled by the controller to achieve the high-precision positioning of the robotic arm.

[0034] During implementation, a clamping jaw for clamping materials is installed on the working end of the multi-axis robotic arm 3, which can stably grasp and release the workpiece 5.

[0035] In this embodiment, the floating test assembly 4 is installed at both ends of the detection station 2 and has a two-axis moving mechanism 401 that moves along the axial and width directions of the material level 203. The two-axis moving mechanism 401 includes a base plate installed on the detection machine table through a guide rail and driven by a cylinder to achieve lateral linear movement, and a movable block installed on the base plate through a guide rail and driven by a cylinder to achieve longitudinal linear movement. The test clamp is installed on the movable block and moves synchronously with the movable block.

[0036] More specifically, the test clamp has a fixed end 402 and a test sealing end 403, and the test sealing end 403 is connected to the internal leakage test unit within the test machine table 1 through a pipeline.

[0037] The test sealing end 403 has a sealing head for sealing, and a sealing ring is provided around the sealing head. The sealing ring is made of a flexible material such as silica gel or rubber. The shape of the sealing head is customized according to the shape and size of the workpiece to ensure the sealing effect and prevent air leakage.

[0038] In this embodiment, the internal leakage test unit includes a detection pipeline and an air pump that is connected to the detection pipeline through an electromagnetic control valve and is used to generate a positive pressure air flow. The detection pipeline is composed of a combination of metal materials and polymer plastic materials. The key parts, such as the main pipeline connecting the air pump, are made of metal materials to ensure its pressure resistance and stability; the branch roads are made of polymer plastic materials to reduce weight and provide sufficient flexibility to avoid detection errors caused by pipeline expansion.

[0039] In some embodiments, the air pump is connected to the detection pipeline through a high-pressure gas storage tank, and an electromagnetic control valve controlled by a controller is provided between the gas storage tank and the air pump. The high-pressure gas storage tank has multiple air outlets, and the air outlets are connected to the corresponding branch roads through electromagnetic control valves controlled by the controller. The purpose of this design is to quickly respond to pressure requirements during the operation of the air pump and maintain a stable supply of air flow.

[0040] In this embodiment, the controller is the core of the entire system and is responsible for coordinating and controlling the operation of each component. The controller includes a central processing unit (CPU), a storage unit, an input / output interface, and a communication module. The controller performs real-time control and monitoring on the multi-axis robotic arm, air pump, electromagnetic control valve, air pressure sensor, etc. through a preset program. The central processing unit is responsible for processing data from the air pressure sensor, analyzing and judging, and performing data exchange with the central control system of the automated production line through the communication module to ensure seamless docking of the production process. The storage unit of the controller stores detection programs, detection standards, and historical data for easy traceability and analysis. The input / output interface is used to connect various sensors, actuators, and human-machine interfaces to facilitate operators to monitor and operate the system.

[0041] It should be understood that the implementation of some functions of the controller depends on its built-in preset software programs. These software programs have been widely used in the field of automated testing, and some software programs have been open-sourced. Therefore, the relevant software programs belong to the prior art and are not the innovation points to be protected by this application. In view of this, these software programs are not described in detail in this embodiment. However, those skilled in the art can understand and implement these software programs to realize the functions of the controller.

[0042] In actual operation, the detection process is carried out according to the following steps. The multi-axis robotic arm 3 first places the workpiece 5 to be tested on the detection station 2, and the movable side plate 202 clamps the workpiece 5 under the drive of the cylinder to ensure that the workpiece 5 is firmly fixed.

[0043] Subsequently, the test clip of the floating test assembly 4 moves to the test position of the workpiece 5 under the instruction of the controller, and the test sealing end 403 is in sealing contact with the part to be tested of the workpiece 5. The air pump generates a positive pressure air flow, which enters the interior of the workpiece 5 through the detection pipeline and the branch pipeline, and then the valve is closed, so that the branch pipeline and the internal channel of the workpiece 5 form a sealed loop. At this time, the air pressure sensor starts to monitor the air pressure change in the pipeline in real time.

[0044] During the monitoring process of the air pressure sensor, if there is an internal leak in the workpiece, the air flow will leak from the internal leak, resulting in a decrease in the air pressure in the branch pipeline.

[0045] The air pressure sensor can accurately detect the change in air pressure. The air pressure sensor transmits the detected air pressure change data to the controller, and the controller analyzes the air pressure change data according to the feedback of the air pressure sensor and judges whether there is an internal leak in the workpiece 5.

[0046] If the air pressure remains stable within the set time, it is determined that the workpiece 5 is qualified; if the air pressure drops, it is determined that the workpiece 5 has an internal leak.

[0047] It can be understood that the internal leak testing device of this embodiment can also be installed in an automated production line, especially on a production line that requires internal leak detection, such as a production line for heat sinks. By integrating the internal leak testing device into the automated production line, the automation and high efficiency of the production process can be achieved. The automated operation of the multi-axis robotic arm 4 and the floating test assembly 4 enables the entire detection process to be free of manual intervention, significantly improving production efficiency and detection accuracy. At the same time, the controller can communicate with the central control system of the production line to achieve real-time monitoring and data recording of the production process, thereby ensuring quality control of each production link.

[0048] Although the exemplary embodiments of the present disclosure have been described, those skilled in the art should understand that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included within the protection scope of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and equivalents of these claims are also included.

Claims

1. Internal leakage testing device, characterized in that: include: A detection machine, at least one detection station with a material clamping function installed on the detection machine, a multi-axis mechanical arm installed next to the detection machine, a floating test assembly installed at both ends of the detection station, an internal leakage detection unit installed in the detection machine and cooperating with the floating test assembly, and a controller, wherein the multi-axis mechanical arm controlled by the controller puts / takes materials to the detection station; the floating test assembly controlled by the controller has a two-axis moving mechanism that moves along the axial direction and width direction of the material level and a test clamp installed on the two-axis moving mechanism; the test clamp has a fixed end and a test sealing end, and the test sealing end is connected to the internal leakage test unit in the machine through a pipeline; the internal leakage test unit includes a detection pipeline, an air pump connected to the detection pipeline through an electric control valve and used to generate a positive pressure airflow, the detection pipeline has a branch road consistent with the number of detection stations, and the branch road is connected to an air pressure sensor installed in the detection pipeline; the electric control valve and the air pressure sensor are connected to the controller, the electric control valve is controlled by the controller, and the air pressure sensor sends the pipeline air pressure value in the branch road to the controller; the test sealing ends in the two floating test assemblies at both ends of the detection station are connected, Furthermore, the inspection station has a bottom plate, a fixed side plate and a movable side plate parallel to the fixed side plate. The fixed side plate and the movable side plate are spaced apart to form a material level for placing the workpiece. The movable side plate is driven by a cylinder to achieve clamping of the material in the station.

2. The internal leakage testing device as claimed in claim 1, characterized in that: A rubber block is arranged on one side surface of the fixed side plate and the movable side plate for clamping the workpiece to prevent scratches or clamping on the surface of the clamped workpiece.

3. The internal leakage testing device as claimed in claim 1, characterized in that: The two-axis moving mechanism includes a base plate installed on the detection machine through a guide rail and driven by a cylinder to achieve lateral linear movement, and a movable block installed on the base plate through a guide rail and driven by a cylinder to achieve longitudinal linear movement; the test clamp is installed on the movable block and moves synchronously with the movable block.

4. The internal leakage testing device as claimed in claim 1, characterized in that: The air pump is connected to the detection pipeline through a high-pressure air tank. An electric control valve controlled by a controller is arranged between the air tank and the air pump. At the same time, the high-pressure air tank has multiple air outlets, which are connected to corresponding branch roads through controlled electric control valves.

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