Multi-way valve assembling method and device

Abstract

The invention relates to the field of multi-way valve assembling, and discloses a multi-way valve assembling method and device.The multi-way valve assembling method comprises the steps that distribution information of connectors of a to-be-assembled target multi-way valve is obtained; selecting a preset tightening position of a tightening mechanism on the automatic tightening station according to the distribution information; and after the target multi-way valve is conveyed to the automatic tightening station, the tightening mechanism is controlled to move to the selected preset tightening position in sequence, and a connector, located at the current preset tightening position, on the target multi-way valve is tightened. According to the multi-way valve assembling method, the automatic tightening program matched with the target multi-way valve can be rapidly generated, and the generation efficiency of the automatic tightening program and the production efficiency of multi-way valve assembling are improved.

Description

Technical Field

[0001] This application belongs to the field of multi-way valve assembly technology, specifically relating to a multi-way valve assembly method and apparatus. Background Technology

[0002] Multi-way valves used in construction machinery are key hydraulic components. Their valve bodies are usually equipped with multiple oil ports of different specifications, and threaded connectors of corresponding specifications need to be installed at each oil port.

[0003] In actual production, the large number of multi-way valve models significantly increases the number of corresponding automated tightening programs, resulting in a large programming workload, extended production preparation time, and reduced production efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a multi-way valve assembly method and apparatus to improve the efficiency of generating automated tightening programs for different models of multi-way valves.

[0005] To achieve the above objectives, this application provides a method for assembling a multi-way valve, the method comprising: Obtain the connector distribution information of the target multi-way valve to be assembled; Based on the distribution information, the preset tightening position of the tightening mechanism on the automatic tightening station is selected; After the target multi-way valve is delivered to the automatic tightening station, the control tightening mechanism moves sequentially to the selected preset tightening position and tightens the connector on the target multi-way valve located at the current preset tightening position.

[0006] In some embodiments, after tightening the connector on the target multi-way valve located at the current preset tightening position, the multi-way valve assembly method further includes: Determine whether the tightening torque of the currently tightened connector is within the preset torque range; When the tightening torque of the joint is within the preset torque range, the joint is considered to be installed successfully.

[0007] In some implementations, obtaining the distribution information of the connectors of the target multi-way valve to be assembled includes: Based on the identified multi-way valve model information, the distribution information of the corresponding multi-way valve connectors is obtained from the built-in database. Alternatively, the distribution information of the connectors of the target multi-way valve to be assembled can be obtained manually.

[0008] In some embodiments, the multi-way valve assembly method further includes the following steps before the target multi-way valve is conveyed to the automatic tightening station: Pre-tighten the connector onto the oil port of the target multi-way valve.

[0009] In some embodiments, the multi-way valve assembly method further includes, before pre-tightening the connector onto the port of the target multi-way valve: Based on the model information of the target multi-way valve, select the matching connector and tightening tool from the parts library.

[0010] A second aspect of this application provides a multi-way valve assembly device, which includes a pre-assembly station and an automatic tightening station. The automatic tightening station has multiple preset tightening positions. The multi-way valve assembly device includes: The valve body conveying mechanism includes a clamping assembly and a first moving assembly. The clamping assembly is used to clamp the valve body of the multi-way valve and is connected to the first moving assembly. The first moving assembly drives the clamping assembly to move between a pre-assembly station and an automatic tightening station. The tightening mechanism is used to tighten the connector on the multi-way valve at the automatic tightening station. The controller, wherein the valve body conveying mechanism and the tightening mechanism are electrically connected to the controller, and the controller is configured to: Obtain the connector distribution information of the target multi-way valve to be assembled; Based on the distribution information, the preset tightening position of the tightening mechanism on the automatic tightening station is selected; After the target multi-way valve is delivered to the automatic tightening station, the tightening mechanism is controlled to move sequentially to the selected preset tightening position and tighten the connector on the target multi-way valve located at the current preset tightening position.

[0011] In some embodiments, the tightening mechanism includes: A screw-on assembly, electrically connected to the controller, is used to tighten the connectors on the multi-way valve; The second moving component is connected to the screwing component and electrically connected to the controller. The second moving component is used to drive the screwing component to move between multiple preset tightening positions at the automatic tightening station.

[0012] In some embodiments, there are multiple pre-assembly stations, valve body conveying mechanisms, and automatic tightening stations, and they are set up one-to-one. The valve body conveying mechanism is used to convey multi-way valves between the corresponding pre-assembly station and the automatic tightening station, and the multiple automatic tightening stations are interconnected. The tightening mechanism further includes a moving guide assembly spanning multiple automatic tightening stations, the second moving assembly being movably disposed on the moving guide assembly and capable of moving between the multiple automatic tightening stations.

[0013] In some embodiments, the valve body conveying mechanism further includes a flipping component connected to the clamping component, which drives the clamping component to flip between a pre-installed posture and an automatic tightening posture.

[0014] In some implementations, a manual tightening workbench is provided at the pre-assembly station; Alternatively, the pre-assembly station may be equipped with an automatic pre-tightening mechanism.

[0015] The above technical solution obtains the distribution information of the target multi-way valve connectors to determine the number of connectors and the tightening position of each connector for the current model of multi-way valve. Based on this information, preset tightening positions are selected from the database, thus determining the tightening movement path of the tightening mechanism for the target multi-way valve model. Once the tightening movement path is determined, the tightening mechanism only needs to move sequentially according to the selected preset tightening positions. Each time it moves, it tightens the connector located at the current preset tightening position, thus completing the installation of all connectors of the multi-way valve. This method can automatically generate automatic tightening programs adapted to different models of multi-way valves, eliminating the need to design separate automatic tightening programs for each type of multi-way valve. This improves the efficiency of automatic tightening program generation, enhances code accuracy, reduces errors during production, and increases the production efficiency of multi-way valve assembly.

[0016] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 Here is a flowchart of a multi-way valve assembly method in some embodiments of this application; Figure 2 This is a schematic diagram of the structure of the display screen in some embodiments of this application; Figure 3 This is a schematic diagram of the basic interface in some embodiments of this application; Figure 4 This is a schematic diagram of the structure of the multi-way valve assembly device in some embodiments of this application; Figure 5 This is a schematic diagram of the valve body conveying mechanism in some embodiments of this application; Figure 6 This is a schematic diagram of the screwing assembly in some embodiments of this application; Figure 7 This is a schematic diagram of the tightening mechanism in some embodiments of this application. Figure 8This is a schematic diagram of the assembly structure of the two valve body conveying mechanisms and the tightening mechanism in some embodiments of this application; Figure 9 This is a schematic diagram of the sleeve magazine structure in some embodiments of this application; Figure 10 This is a schematic diagram of the electrical connection structure of the controller in some embodiments of this application.

[0018] Explanation of reference numerals in the attached figures: 1. Multi-way valve assembly device; 11. Valve body conveying mechanism; 12. Tightening mechanism; 111. Clamping assembly; 112. First moving assembly; 113. Tilting assembly; 1111. Traveling component; 1112. Fixing component; 1113. Support component; 1121. First driving component; 1122. First slide rail; 121. Twisting assembly; 122. Second moving assembly; 1211. Twisting arm; 1212. Sleeve; 141. Sleeve magazine; 1411. Sleeve seat; 1412. Sensor; 1413. Baffle; 1221. Mounting base; 1222. Three-way moving component; 123. Moving guide assembly; 1231. Second slide rail; 1232. Slider; 15. Identification component; 16. Display device; 17. Material rack; 13. Controller; 1233. Second driving component; 171. Light-based error prevention and guidance system; 2. Multi-way valve; 21. Connector; D1, First direction; D2, Second direction; D3, Third direction; P1, Pre-assembly station; P2, Automatic tightening station. Detailed Implementation

[0019] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0020] In related technologies, the tightening program of multi-way valves usually relies on manual programming. When the number of multi-way valve models on the production line increases, a large number of programs need to be manually rewritten to adapt to the tightening process of different models of multi-way valves, which reduces the efficiency of program generation and the error rate of manual coding is relatively high.

[0021] This application provides a method for assembling a multi-way valve, see reference. Figure 1 The assembly method for a multi-way valve includes the following steps: Step S1: Obtain the distribution information of the connectors 21 of the target multi-way valve 2 to be assembled; Step S2: Select the preset tightening position of the tightening mechanism 12 on the automatic tightening station P2 according to the distribution information; Step S3: After the target multi-way valve 2 is delivered to the automatic tightening station P2, the tightening mechanism 12 is controlled to move sequentially to the selected preset tightening position and tighten the connector 21 on the target multi-way valve 2 that is located at the current preset tightening position.

[0022] This method obtains the distribution information of the connectors 21 of the target multi-way valve 2 to determine the number of connectors and the tightening position of each connector for the current model of multi-way valve. Based on this information, it selects preset tightening positions from the database, thereby determining the tightening movement path of the tightening mechanism 12 for the target multi-way valve 2 of that model. Once the tightening movement path is determined, the tightening mechanism 12 only needs to move sequentially according to the selected preset tightening positions. Each time it moves, it tightens the connector located at the current preset tightening position, thus completing the installation of all connectors of the multi-way valve. This method can automatically generate automatic tightening programs adapted to different models of multi-way valves, eliminating the need to design separate automatic tightening programs for each type of multi-way valve. This improves the generation efficiency of automatic tightening programs, enhances code accuracy, reduces errors during production, and increases the production efficiency of multi-way valve assembly.

[0023] It should be noted that the "preset tightening positions" pre-stored in the database described in this embodiment are, in essence, the specific locations of each connector on the multi-way valve body that needs to be assembled via threaded connections. These locations are physical coordinates or logical identifiers that have been digitally modeled and stored in the database based on product design drawings and assembly process requirements.

[0024] Specifically, this database does not serve only a single specific model, but rather constructs a standardized tightening position information database covering common multi-way valve models on the market (or, depending on the business scope, specifically a series of products commonly used in a certain type of engineering machinery or hydraulic system). For each model, the database systematically records the precise location information, sequence logic, and corresponding preset torque range of all its connectors to be tightened (such as working oil port, pressure measuring port, pilot control port, drain port, etc.).

[0025] Therefore, when the system performs automated tightening operations on multi-way valves of different models, it can quickly call up the corresponding preset tightening position data according to the current product model, guide the tightening mechanism to accurately position, and use the upper and lower limits of the torque corresponding to that position for intelligent tightening and quality judgment.

[0026] In some embodiments, after tightening the connector 21 located at the current preset tightening position on the target multi-way valve 2, the assembly method of the multi-way valve 2 further includes determining whether the tightening torque of the currently tightened connector 21 is within a preset torque range; when the tightening torque of the connector 21 is within the preset torque range, it is determined that the currently tightened connector 21 is installed successfully.

[0027] When the currently tightened connector 21 is installed correctly, a prompt will be displayed indicating that it is qualified or the process will proceed automatically to the next step.

[0028] In this embodiment, the preset torque range includes an upper limit torque value and a lower limit torque value. The preset torque range is used to regulate the tightness of the joint assembly. If the actual torque value exceeds the upper limit, it indicates that the joint is over-tightened, which may lead to component deformation or stress concentration; if the actual torque value is lower than the lower limit, it indicates that the joint is under-tightened, which may easily cause loosening of the connection or failure of the seal.

[0029] In one embodiment, if the current connector 21 is not installed correctly, the incorrect connector 21 is marked or indicated. After the tightening mechanism 12 tightens all connectors 21 in sequence, the incorrect connector 21 can be selected again, and the tightening mechanism 12 can retighten the connector 21. The real-time torque value is then detected again to determine whether the real-time torque value is within the preset torque range.

[0030] In one embodiment, when the current connector 21 is not installed correctly, the incorrect connector 21 can be marked or indicated. After the tightening mechanism 12 tightens all connectors 21 in sequence, the incorrect connector 21 can be tightened manually or by the tightening mechanism.

[0031] In some embodiments, obtaining the distribution information of the connectors 21 of the target multi-way valve 2 to be assembled includes: obtaining the distribution information of the connectors 21 of the corresponding model of the multi-way valve 2 from the built-in database according to the identified model information of the multi-way valve 2.

[0032] The method for identifying the model information of the target multi-way valve 2 can be scanning, visual image recognition, or manual input of the multi-way valve 2 model.

[0033] Within the built-in database, once the model number of the target multi-way valve 2 is obtained, the distribution information of the connectors 21 of the target multi-way valve 2 is automatically acquired. Based on the connector 21 distribution information, the built-in program is automatically selected and integrated to generate the corresponding tightening program. Especially when the target multi-way valve 2 model is an existing model on the current production line, the automatic tightening program for that model of multi-way valve 2 can be directly obtained by scanning, improving the production efficiency of mixed production lines for multiple models of multi-way valve 2.

[0034] In some embodiments, the distribution information of the connectors 21 includes the coordinate positions of all connectors 21, the model of each connector 21, the standard torque value of each connector 21, and the preset torque range of each connector 21.

[0035] In some embodiments, obtaining the distribution information of the connectors 21 of the target multi-way valve 2 to be assembled includes: manually obtaining the distribution information of the connectors 21 of the target multi-way valve 2 to be assembled.

[0036] For example, a basic interface with connector 21 is obtained from the built-in database, and connector 21 is manually selected on the basic interface to manually obtain the distribution information of connector 21 of the target multi-way valve 2 to be assembled.

[0037] Understandably, the valve body of a multi-way valve 2 is generally composed of multiple valve plates connected in series or as a single casting, with a certain number of oil ports. The arrangement of these ports is relatively regular, and the port positions are highly similar between different models of multi-way valves 2. For example, the layout principles of the core inlet, return, working, and pilot ports are basically the same on 3-way and 5-way multi-way valves 2. Using the connectors 21 of the multi-way valve 2, which has the most connectors 21, as the basis for generating the basic interface simplifies the control logic of the method.

[0038] See Figure 3 , Figure 3 The system is configured with 10 columns (two rows) of valve heads, valve plates 1-8, and valve tails, totaling 20 connector positions. Each selection box corresponds to a connector 21 distribution, and each connector 21 position represents a preset tightening position. When it is necessary to select the connectors 21 in the valve head, valve plates 1-7, and valve tail columns, all selection boxes are lit up in the initial state. Clicking the upper and lower selection boxes at valve plate 8 will darken them, thus masking the two connectors 21 at valve plate 8. The tightening mechanism 2 will then move sequentially to tighten the upper and lower rows of connectors 21 in the order of valve head, valve plates 1-7 to valve tail.

[0039] The selection process can be performed manually or automatically by a program. For example, regarding manual selection, please refer to [link / reference]. Figure 3 Manually select the connector 21 by clicking on the desired location or the location of the connector 21 that needs to be shielded. This manual selection of connector 21 in the basic interface simplifies the automatic tightening program generation process for the multi-way valve 2. Especially when adding a new model of multi-way valve 2 to the production line, selecting connector 21 in the basic interface automatically generates a tightening program adapted to the new model. This adapted tightening program is then stored for easy retrieval via barcode scanning, eliminating the need for manual programming and improving the efficiency of tightening program generation, thus increasing the efficiency of mixed-line production of multiple models of multi-way valve 2.

[0040] In some implementations, see Figure 2 and Figure 3 The basic interface is displayed on a controllable screen, such as an HMI touchscreen or an industrial control all-in-one machine, enabling visual editing and improving efficiency. Connector 21 can be selected on the basic interface by operating on the controllable screen. Alternatively, connector 21 can also be selected on the basic interface using both the screen and the input keyboard, enabling visual editing.

[0041] It is understandable that the number of connectors 21 marked on the basic interface is greater than the number of connectors 21 on the multi-way valve 2 on the production line. Selecting connectors 21 on the basic interface also includes: opening all connectors 21 adapted to the target multi-way valve 2 and closing the remaining connectors 21. For example, see... Figure 3 The closed connector 21 is gray, while the open connector 21 is light.

[0042] Continue reading Figure 3 In some implementations, when the real-time torque of the connector 21 is detected to be outside the preset torque range, the selection box of the connector 21 is displayed in red, and when the real-time torque of the connector 21 is detected to be within the preset torque range, the selection box of the connector 21 is displayed in green, thereby visualizing the tightening result.

[0043] In some embodiments, before the target multi-way valve 2 is conveyed to the automatic tightening station P2, the assembly method of the multi-way valve 2 further includes: pre-installing or pre-tightening the connector 21 on the oil port of the target multi-way valve 2.

[0044] In one embodiment, the model of the multi-way valve 2 is identified manually or automatically, the corresponding connector 21 is selected manually or automatically, and the connector 21 is manually screwed into the corresponding oil port of the multi-way valve 2.

[0045] In one embodiment, the automated device identifies the signal of the multi-way valve 2, then automatically selects the corresponding connector 21, and screws the connector 21 into the corresponding oil port of the multi-way valve 2 via a robotic arm.

[0046] In some embodiments, before pre-tightening the connector 21 onto the oil port of the target multi-way valve 2, the assembly method of the multi-way valve 2 further includes: selecting a matching connector 21 and tightening tool from a parts library according to the model information of the target multi-way valve 2.

[0047] By automatically selecting the matching connector 21, the matching speed is improved and human error is reduced.

[0048] Based on the type, size, and required tightening torque of the connector 21, select the correct manual pre-assembly tool (such as a torque wrench, hydraulic pulse wrench, or preset screwdriver) and the sleeve 1212 of the tightening mechanism 12 to precisely control the tightening torque of the connector 21, so that the assembly quality of each connector 21 on the batch multi-way valve 2 is uniform and reliable.

[0049] This application also provides a multi-way valve assembly device 1, see reference. Figure 4 and Figure 5 The multi-way valve assembly device 1 is provided with a pre-assembly station P1 and an automatic tightening station P2. The automatic tightening station P2 is provided with multiple automatic tightening positions, and each automatic tightening position corresponds to a connector 21 on the multi-way valve 2.

[0050] The multi-way valve assembly device 1 includes a valve body conveying mechanism 11, a tightening mechanism 12, and a controller 13.

[0051] At the pre-assembly station P1, the connector 21 is screwed into the corresponding oil port of the multi-way valve 2. At the automatic tightening station P2, the connector 21 on the multi-way valve 2 is tightened, achieving high-precision and high-efficiency assembly and improving the uniformity and reliability of product assembly quality.

[0052] The valve body conveying mechanism 11 is used to drive the valve body to move back and forth between the pre-assembly station P1 and the automatic tightening station P2.

[0053] The valve body conveying mechanism 11 includes a clamping assembly 111 and a first moving assembly 112. The clamping assembly 111 is used to clamp the valve body of the multi-way valve 2 and is connected to the first moving assembly 112. The first moving assembly 112 drives the clamping assembly 111 to move between the pre-assembly station P1 and the automatic tightening station P2 to meet the requirements of pre-assembly and automatic tightening operations. This realizes the spatial separation of pre-assembly and automatic tightening operations, forming two independent operation links and improving the safety of pre-assembly and automatic tightening operations.

[0054] In one implementation, see [reference] Figure 5 The clamping assembly 111 includes a traveling member 1111, a fixing member 1112, and a support member 1113. The traveling member 1111 and the fixing member 1112 are spaced apart along a first direction D1, and the support member 1113 connects the traveling member 1111 and the fixing member 1112. The fixing member 1112 is used to place the multi-way valve 2 and ensures that the assembly surface of the multi-way valve 2 faces upward at the pre-assembly station P1.

[0055] Continue reading Figure 5 The first moving component 112 includes a first driving member 1121 and two first slide rails 1122. The two first slide rails 1122 are spaced apart along a second direction D2, and the first driving member 1121 is located between the two first slide rails 1122. The traveling member 1111 spans the two first slide rails 1122 and the first driving member 1121. The traveling member 1111 is slidably connected to the first slide rails 1122. The output end of the first driving member 1121 is fixedly connected to the traveling member 1111 and drives the traveling member 1111 to move between the pre-assembly station P1 and the automatic tightening station P2.

[0056] In some embodiments, the tightening mechanism 12 is used to tighten the connector 21 on the multi-way valve 2 at the automatic tightening station P2. The valve body conveying mechanism 11 and the tightening mechanism 12 are electrically connected to the controller 13, which is configured to: acquire the distribution information of the connector 21 of the target multi-way valve 2 to be assembled; select a preset tightening position of the tightening mechanism 12 at the automatic tightening station P2 according to the distribution information; and after the target multi-way valve 2 is conveyed to the automatic tightening station P2, control the tightening mechanism 12 to move sequentially to the selected preset tightening position and tighten the connector 21 on the target multi-way valve 2 located at the current preset tightening position.

[0057] The multi-way valve assembly device 1 of this application transports the pre-assembled multi-way valve 2 from the pre-assembly station P1 to the automatic tightening station P2 via the valve body conveying mechanism 11. It determines the number of connectors 21 of the current model of multi-way valve 2 and the tightening position of each connector. Based on this information, it selects preset tightening positions from the database, thereby determining the tightening movement path of the tightening mechanism 12 for the target multi-way valve 2 of that model. Once the tightening movement path is determined, the tightening mechanism 12 only needs to move sequentially according to the selected preset tightening positions. Each time it moves, it tightens the connector at the current preset tightening position, thus completing the installation of all connectors of the multi-way valve. This method can automatically generate automatic tightening programs adapted to different models of multi-way valves, eliminating the need to design separate automatic tightening programs for each type of multi-way valve. This improves the generation efficiency of automatic tightening programs, enhances code accuracy, reduces errors during production, and increases the production efficiency of multi-way valve assembly.

[0058] In some embodiments, the tightening mechanism 12 includes a screwing assembly 121 and a second moving assembly 122.

[0059] See Figure 6 and Figure 10 The screwing assembly 121 is electrically connected to the controller 13 and is used to tighten the connector 21 on the multi-way valve 2; the second moving assembly 122 is connected to the screwing assembly 121 and electrically connected to the controller 13. The moving assembly is used to drive the screwing assembly 121 to the preset tightening position of the multi-way valve 2 at the automatic tightening station P2.

[0060] In this embodiment, the tightening assembly 121 includes two spaced-apart tightening arms 1211, each fitted with a detachable sleeve 1212. The tightening arms 1211 are used to tighten a single connector 21. The tightening assembly 121 also includes two drive motors that drive the tightening arms 1211 to rotate and are electrically connected to the controller 13. In one embodiment, the two tightening arms 1211 are used to output two different torque ranges, one tightening arm 1211 outputting high torque and the other tightening arm 1211 outputting low torque.

[0061] In other embodiments, the number of rotating arms 1211 can be set as needed, such as one, three, four, etc.

[0062] In some embodiments, the tightening mechanism 12 further includes a sleeve magazine 141.

[0063] like Figure 1 As shown, the sleeve library 141 stores sleeves 1212 that match the multi-type multi-way valve connectors 21.

[0064] See Figure 8 In this embodiment, the sleeve magazine 141 is positioned between the two automatic tightening stations P2, and is located on the moving path of the screwing arm 1211. This eliminates the need for additional moving guide rails, allowing the controller 13 to control the screwing arm 1211 to move directly to the sleeve magazine 141 for the assembly and disassembly of the sleeve 1212. This simplifies the structure of the multi-way valve assembly device 1 and makes the layout more rational.

[0065] In one implementation, such as Figure 9 and Figure 10 As shown, the sleeve storage 141 includes multiple sleeve holders 1411 and multiple sensors 1412. The sleeve holders 1411 are used to store sleeves 1212, and the sensors 1412 are used to sense whether a sleeve 1212 is placed in the sleeve holder 1411. The sensors 1412 are electrically connected to the controller 13. A baffle 1413 is provided at the top of the sleeve holder 1411 to limit the movement of the sleeve 1212. (See also...) Figure 1 The sleeve storage 141 is located on the side of the valve body conveying mechanism 11 away from the automatic tightening station P2.

[0066] For example, sensor 1412 may be a Hall sensor or a photoelectric sensor.

[0067] In one embodiment, the sleeve magazine 141 uses a plate as a support and has multiple sleeve slots on the plate to engage and place the sleeve 1212.

[0068] In some embodiments, the second moving component 122 includes a mounting base 1221 and a three-way moving member 1222. The mounting base 1221 is connected to the output end of the three-way moving member 1222 and is also connected to the screwing component 121.

[0069] The second moving component 122 drives the entire rotating component 121 to move along the first direction D1, the second direction D2, and the third direction D3, satisfying the high-precision positioning and alignment requirements of the rotating arm 1211. The first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other, wherein the first direction D1 is the height direction of the multi-way valve assembly device 1, the second direction D2 is the straight line direction between the pre-assembly station P1 and the automatic tightening station P2, and the third direction D3 is the length direction of the multi-way valve 2. For example, in Figure 4 In the diagram, the first direction D1 is the up-down direction, the second direction D2 is the front-back direction, and the third direction D3 is the left-right direction.

[0070] In some implementations, there are multiple pre-installation stations P1, valve body conveying mechanisms 11, and automatic tightening stations P2, and each station is set up in a corresponding manner.

[0071] In this embodiment, refer to Figure 8 There are two pre-assembly stations P1 and two valve body conveying mechanisms 11, and they are set up one-to-one. Each pre-assembly station P1 is set up with an automatic tightening station P2.

[0072] In other embodiments, the number of pre-assembly stations P1 and valve body conveying mechanisms 11 can be set as needed, as long as they correspond one-to-one. Each pre-assembly station P1 corresponds to multiple automatic tightening stations P2.

[0073] In some embodiments, the valve body conveying mechanism 11 is used to convey the multi-way valve 2 between the corresponding pre-assembly station P1 and the automatic tightening station P2, and the multiple automatic tightening stations P2 are interconnected. The tightening mechanism 12 also includes a moving guide assembly 123 spanning the multiple automatic tightening stations P2, and a second moving assembly 122 is movably disposed on the moving guide assembly 123 and is capable of moving between the multiple automatic tightening stations P2.

[0074] See Figure 7 and Figure 8 The screwing assembly 121 is movably mounted on the moving guide assembly 123 via the second moving assembly 122, so that the screwing assembly 121 can move between multiple automatic tightening stations P2, thereby realizing the tightening operation of multiple automatic tightening stations P2 using one screwing assembly 121.

[0075] See Figure 8 There are two pre-installation stations P1 and two automatic tightening stations P2. The two pre-installation stations P1 are set to be spaced apart on the left and right, and one pre-installation station P1 corresponds to one automatic tightening station P2.

[0076] When the multi-way valve 2 on the left (right) side is automatically tightened at the automatic tightening station P2, another multi-way valve 2 can be pre-installed at the pre-installation station P1 on the right (left) side simultaneously, realizing the alternating operation mode of "double pre-installation + single tightening" and improving operation efficiency.

[0077] Especially in the case of the multi-way valve assembly device 1 in the present application being in human-machine collaboration mode, when the tightening mechanism 12 is performing tightening operation, the worker can move to the pre-installation station P1 which is in an operable state to continue manual pre-installation work, reducing manual waiting time, realizing the "human-machine dual station" alternating operation mode, and improving the working efficiency of the tightening mechanism 12.

[0078] In this application, the multi-way valve assembly device 1 is in fully automatic operation mode. When the tightening mechanism 12 is performing tightening operation, the controller can control the mechanism (such as a robot arm) that pre-assembles the multi-way valve 2 to move to the pre-assembly station P1 in an operable state to perform pre-assembly operations, thereby realizing multi-device linkage operations and improving the assembly efficiency of the multi-way valve 2.

[0079] See Figure 7 and Figure 8 The moving guide assembly 123 includes a second slide rail 1231 extending along a third direction D3. The second slide rail 1231 and two valve body conveying mechanisms 11 arranged side by side are spaced apart along a second direction D2, making the assembly and loading structure of the multi-way valve 2 compact and reducing its volume. The automatic tightening station P2 is located on the side of the first slide rail 1122 that is close to the second slide rail 1231, and the pre-assembly station P1 is located on the side of the first slide rail 1122 that is away from the second slide rail 1231. Multiple automatic tightening stations P2 are arranged along the extension direction of the second slide rail 1231.

[0080] The moving guide assembly 123 also includes a slider 1232 and a second drive member 1233, which drives the slider 1232 to move on the second slide rail 1231. The slider 1232 is connected to the three-way moving member 1222, so that the tightening assembly 121 is movably mounted on the second slide rail 1231. The slider 1232 drives the tightening assembly 121 to move between multiple automatic tightening stations P2.

[0081] In some embodiments, the valve body delivery mechanism 11 further includes a flipping assembly 113 connected to the clamping assembly 111, which is used to flip the clamping assembly 111 between a pre-installed posture and an auto-tightening posture.

[0082] In this embodiment, please continue to refer to Figure 5 and Figure 8 The output end of the flipping component 113 is connected to the fixing component 1112, causing the flipping component 113 to flip vertically. At the pre-assembly station P1, the flipping component 113 flips the clamping component 111 to the pre-assembly posture, so that the assembly surface of the multi-way valve 2 faces upward (for example, the assembly surface of the multi-way valve 2 is perpendicular to the first direction D1). At the automatic tightening station P2, the tightening arm extends along the second direction D2, and the flipping component 113 flips the clamping component 111 to the automatic tightening posture, so that the assembly surface of the multi-way valve 2 faces forward (for example, the assembly surface of the multi-way valve 2 is perpendicular to the second direction D2), opposite to the tightening arm, which facilitates the pairing and connection of the sleeve 1212 and the connector 21.

[0083] This application sets up a flipping component 113 to drive the multi-way valve 2 to face the worker during pre-installation and to face the tightening arm 1211 during tightening, thereby meeting the different posture requirements of manual operation and automatic tightening operation and improving production efficiency.

[0084] In other embodiments, the flipping assembly 113 also drives the multi-way valve 2 to flip at the pre-assembly station P1, facilitating the pre-assembly of the connectors 21 on multiple surfaces of the multi-way valve 2. The flipping assembly 113 also drives the multi-way valve 2 to flip at the automatic tightening station P2, facilitating the tightening of the connectors 21 on multiple surfaces of the multi-way valve 2.

[0085] For example, the flipping component 113 adopts a single-sided support cantilever rotary displacement mechanism, or a double-sided support rotary displacement mechanism.

[0086] In some implementations, such as Figure 4 As shown, a manual tightening control table is provided on the pre-assembly station P1. The position of the manual tightening control table coincides with the pre-tightening station, simplifying the structure. The manual tightening control table is used to screw the connector 21 into the oil port of the multi-way valve 2 using a manual tightening tool (such as a screwdriver).

[0087] In some embodiments, the pre-assembly station P1 is provided with an automatic pre-tightening mechanism, which is used to screw the connector 21 into the oil port of the multi-way valve 2 by an automated device (such as a robotic arm).

[0088] When a manual tightening control panel is set up, the tightening process of the multi-way valve 2 is a semi-automatic assembly process. Specifically, the operator manually screws the connector 21 into the multi-way valve 2, and then the tightening mechanism 12 tightens the connector 21. Compared to a fully automatic assembly process (automatically screwing the connector 21 into the multi-way valve 2, and then tightening the connector 21 by the tightening mechanism 12), this assembly process for the multi-way valve 2 involves more displacement and angle changes during the selection, material handling, and pre-assembly of the connector 21, which reduces the accuracy and movement efficiency of the robotic arm. At the same time, the flexibility and agility of manual tightening are higher than that of the robotic arm's rotational movements, improving the pre-assembly pass rate. Furthermore, the efficiency of manual tightening is higher than that of the robotic arm, shortening the pre-assembly or pre-tightening time of the connectors of the multi-way valve 2 and improving production efficiency. Additionally, assigning the heavy-load and simple tightening work to the tightening mechanism 12 reduces the labor intensity of workers and ensures the consistency of the final torque of the automatically tightened multi-way valve 2 connectors 21, improving product quality reliability.

[0089] In some embodiments, the multi-way valve assembly device 1 further includes an identification component 15.

[0090] See Figure 1 and Figure 10 The identification component 15 is electrically connected to the controller 13. The identification component 15 is used to identify the model information of the multi-way valve 2, thereby enabling the controller 13 to obtain the distribution information of the connectors 21 of the target multi-way valve 2 from its built-in data block. (See also...) Figure 1Each pre-installation station P1 is equipped with a corresponding identification component 15. The identification component 15 is located on the side of the valve body conveying mechanism 11 away from the automatic tightening station P2, which facilitates the identification operation.

[0091] For example, the identification component 15 uses a barcode scanner to scan and identify the barcode or QR code on the multi-way valve 2, so that the controller 13 can obtain the model number of the multi-way valve 2.

[0092] In some embodiments, the multi-way valve assembly 1 also includes a display device 16.

[0093] See Figure 1 and Figure 10 The display device 16 is electrically connected to the controller 13. The display device 16 can be an input-enabled display screen, such as an HMI touch screen or an industrial control all-in-one machine, to achieve visual editing and improve efficiency.

[0094] The display device 16 is used to display information from the built-in database, including the basic interface for generating the automatic tightening program of the multi-way valve 2, the model information of the multi-way valve 2, the distribution information of the multi-way valve 2 connector 21, the real-time torque value of the multi-way valve 2 connector 21 after tightening, and to display whether the tightening structure of the connector 21 is qualified.

[0095] See Figure 1 and Figure 10 The display device 16 is located on the side of the valve body conveying mechanism 11 away from the automatic tightening station P2, so as to facilitate viewing the screen and making manual input.

[0096] In some embodiments, the multi-way valve assembly device 1 also includes a material rack 17.

[0097] See Figure 1 and Figure 10 Each pre-assembly station P1 is equipped with a material rack 17, which is located around the valve body conveying mechanism 11 to improve the integration of the multi-way valve assembly device 1. The material rack 17 is equipped with a light-based error-prevention guidance system 171, which is electrically connected to the controller 13. When the identification component 15 identifies the model of the multi-way valve 2, the light strip at the location of the required assembly connector 21 illuminates, guiding the operator to correctly retrieve the material. If the wrong location is retrieved, the light flashes to indicate an error, improving the efficiency and accuracy of manual material retrieval.

[0098] See also Figure 4 The working process of the multi-way valve assembly device 1 of this application is as follows: At the pre-installation station P1 on the left, the identification component 15 on the left identifies the multi-way valve 2 model. Fix the multi-way valve 2 to the left-side fixing member 1112; Manually retrieve the corresponding connector 21 from the illuminated light strip on the left-side material rack 17; Manually screw connector 21 into the corresponding oil port of multi-way valve 2 to complete the pre-installation; The first moving component 112 on the left moves the pre-assembled multi-way valve 2 from the pre-assembly station P1 to the automatic tightening station P2. At the same time, the flipping component 113 flips the multi-way valve 2 so that the assembly surface of the multi-way valve 2 faces the screwing arm 1211. The screwing component 121 moves to the automatic tightening station P2 on the left. Start the tightening procedure of multi-way valve 2 by operating the display screen, or start the tightening procedure after entering data on the basic interface of the display screen; While the tightening mechanism 12 is tightening, switch to the pre-installation station P1 on the right and repeat the above operation using the identification component 15, material rack 17 and valve body conveying mechanism 11 on the right. After the tightening mechanism 12 completes the tightening process of the current multi-way valve 2, the real-time torque at each joint 21 is detected and it is determined whether it meets the preset torque range. If it does, the tightening arm 1211 moves to the automatic tightening station P2 on the right to tighten the next multi-way valve 2. If it does not meet the requirements, an error is reported and the torque at the position of the reported joint 21 is corrected.

[0099] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0100] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0101] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0102] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A method for assembling a multi-way valve, characterized in that, The multi-way valve assembly method includes: Obtain the connector distribution information of the target multi-way valve to be assembled; Based on the distribution information, the preset tightening position of the tightening mechanism on the automatic tightening station is selected; After the target multi-way valve is delivered to the automatic tightening station, the tightening mechanism is controlled to move sequentially to the selected preset tightening position and tighten the connector on the target multi-way valve located at the current preset tightening position.

2. The multi-way valve assembly method according to claim 1, characterized in that, After tightening the connector located at the current preset tightening position on the target multi-way valve, the multi-way valve assembly method further includes: Determine whether the tightening torque of the currently tightened connector is within the preset torque range; When the tightening torque of the joint is within the preset torque range, the joint being tightened is deemed to be installed successfully.

3. The multi-way valve assembly method according to claim 1, characterized in that, Obtain the connector distribution information of the target multi-way valve to be assembled, including: Based on the identified model information of the multi-way valve, the distribution information of the connectors of the corresponding model of the multi-way valve is obtained from the built-in database; Alternatively, the distribution information of the connectors of the target multi-way valve to be assembled can be obtained manually.

4. The multi-way valve assembly method according to any one of claims 1 to 3, characterized in that, Before the target multi-way valve is delivered to the automatic tightening station, the multi-way valve assembly method further includes: Pre-tighten the connector onto the oil port of the target multi-way valve.

5. The multi-way valve assembly method according to claim 4, characterized in that, Before pre-tightening the connector onto the oil port of the target multi-way valve, the multi-way valve assembly method further includes: Based on the model information of the target multi-way valve, select the matching connector and tightening tool from the parts library.

6. A multi-way valve assembly device, characterized in that, The multi-way valve assembly device is provided with a pre-assembly station and an automatic tightening station. The automatic tightening station has multiple preset tightening positions. The multi-way valve assembly device includes: A valve body conveying mechanism, comprising a clamping assembly and a first moving assembly, wherein the clamping assembly is used to clamp the valve body of a multi-way valve and is connected to the first moving assembly, and the first moving assembly drives the clamping assembly to move between the pre-assembly station and the automatic tightening station; A tightening mechanism for tightening the connectors on the multi-way valve at the automatic tightening station; The controller, wherein the valve body conveying mechanism and the tightening mechanism are electrically connected to the controller, and the controller is configured to: Obtain the connector distribution information of the target multi-way valve to be assembled; Based on the distribution information, the preset tightening position of the tightening mechanism on the automatic tightening station is selected; After the target multi-way valve is delivered to the automatic tightening station, the tightening mechanism is controlled to move sequentially to the selected preset tightening position and tighten the connector on the target multi-way valve located at the current preset tightening position.

7. The multi-way valve assembly device according to claim 6, characterized in that, The tightening mechanism includes: A screwing assembly, which is electrically connected to the controller and is used to tighten the connectors on the multi-way valve; The second moving component is connected to the screwing component and electrically connected to the controller. The second moving component is used to drive the screwing component to move between multiple preset tightening positions at the automatic tightening station.

8. The multi-way valve assembly device according to claim 7, characterized in that, The number of the pre-assembly station, the valve body conveying mechanism, and the automatic tightening station are all multiple and are set up one-to-one. The valve body conveying mechanism is used to convey multi-way valves between the corresponding pre-assembly station and the automatic tightening station. The multiple automatic tightening stations are interconnected. The tightening mechanism further includes a moving guide assembly spanning multiple automatic tightening stations, the second moving assembly being movably disposed on the moving guide assembly and capable of moving between the multiple automatic tightening stations.

9. The multi-way valve assembly device according to claim 6, characterized in that, The valve body conveying mechanism also includes a flipping component, which is connected to the clamping component and drives the clamping component to flip between a pre-installed posture and an automatic tightening posture.

10. The multi-way valve assembly device according to any one of claims 6 to 9, characterized in that, The pre-assembly station is equipped with a manual tightening worktable; or, the pre-assembly station is equipped with an automatic pre-tightening mechanism.

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