A nylon tube quick connector assembly system and method

Abstract

The application belongs to the technical field of assembly equipment, and provides a nylon pipe quick plug connector assembly system and method. The nylon pipe quick plug connector assembly system and method have the vertical layout of the receiving groove opening of the assembly component upward and the first clamping jaw upward, the overall structure is open at the top and the side, and the automatic equipment can be used for feeding, so as to make up for the deficiency of the closed horizontal layout structure. The conveying component conveys the quick plug connector from the feeding station to the unloading station through the receiving column and the correction channel. The correction channel corrects the quick plug connector to the preset posture by using the matching relationship of the cross section, so as to ensure the angle consistency of the quick plug connector when reaching the unloading station. The loading component clamps the quick plug connector through the connector clamping mechanism, the overturning mechanism drives the overturning to align the connector with the receiving groove, the first lifting mechanism is lifted to take down the connector and then is lowered to press the connector into the receiving groove. The whole system realizes the full-automatic feeding and assembly of the quick plug connector and the nylon pipe.

Description

Technical Field

[0001] This invention belongs to the field of assembly equipment technology, specifically relating to a nylon tube quick-connect fitting assembly system and method. Background Technology

[0002] In automobiles, nylon tubing components typically require bending the nylon tubing into the desired shape using a tube bending machine before assembly. The bent nylon tubing is then connected to quick-connect fittings to form a complete piping assembly.

[0003] Most existing assembly mechanisms for nylon tubing and quick-connect couplings adopt a horizontal layout. During assembly, both the nylon tubing and the quick-connect coupling are fixed horizontally within receiving grooves on the same horizontal plane. The insertion and assembly are achieved through relative movement between the two along the horizontal axis of the quick-connect coupling. Because the horizontal layout arranges all workstations on the same horizontal plane, the overall structure is relatively enclosed, making it difficult to automatically transport and load quick-connect couplings from the outside to the workstations.

[0004] Therefore, existing technologies mostly employ human-machine interaction for assembly operations, where operators manually install quick-connect couplings and nylon tubing into the corresponding receiving slots of the assembly device. However, manual loading is inefficient, labor-intensive, and difficult to ensure consistent material loading, making it unsuitable for mass production needs. Summary of the Invention

[0005] This invention provides a nylon tube quick-connect fitting assembly system and method, aiming to achieve full automation of quick-connect fitting and nylon tube feeding and assembly.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, embodiments of the present invention provide a nylon tube quick-connect fitting assembly system, comprising: The assembly component includes a receiving groove for receiving a connector and a first gripper for holding a nylon tube. The receiving groove has an upward opening and a degree of freedom to move up and down. The first gripper is located on the upper side of the receiving groove. The first robotic arm is used to hold the nylon tube and place it in the first gripper. The conveying assembly includes multiple receiving columns that circulate along a preset track, a loading station and a unloading station located on the preset track, and a correction channel located on the upper side of the preset track between the loading station and the unloading station. The cross-sectional shape of the correction channel in the vertical conveying direction is adapted to the projection of the joint along the conveying direction, and is used to correct the joint passing through the correction channel to a preset posture. The second robotic arm is used to grip the connector and insert it into the receiving column located at the loading station; The loading assembly includes a connector clamping mechanism, a flipping mechanism, and a first lifting mechanism. The connector clamping mechanism is used to clamp the connector located at the unloading station. The flipping mechanism is used to drive the connector clamping mechanism to flip so that the connector is vertically aligned with the receiving groove on the assembly device. The first lifting mechanism is used to drive the connector clamping mechanism to rise or fall. The first lifting mechanism is used to remove the connector located at the unloading station when the connector clamping mechanism is raised; and to press the connector on the upper side of the receiving groove into the receiving groove when it is lowered.

[0007] In conjunction with the first aspect, in one possible implementation of the nylon tube quick-connect fitting assembly system provided by the present invention, the conveying assembly further includes a correction mechanism, the correction mechanism comprising: The alignment bracket is fixedly installed relative to the preset track; A correction block is connected to the correction bracket. The correction block has a correction channel, which includes a tapered channel and a constant diameter channel. The large end of the tapered channel is the feed inlet, and the small end is connected to the constant diameter channel. The cross-sectional shape of the constant diameter channel perpendicular to the conveying direction is adapted to the projection of the connector along the conveying direction.

[0008] In conjunction with the first aspect, in one possible implementation of the nylon tube quick-connect fitting assembly system provided by the present invention, the alignment block includes a fixed part and a movable part. The fixed part is fixedly disposed and has the tapered channel. The movable part is disposed downstream of the fixed part and has the equal-diameter channel of a preset length. The movable part includes: The first movable block and the second movable block are respectively located on both sides of the correction channel in the horizontal direction perpendicular to the conveying direction. The first movable block has a first half-groove and the second movable block has a second half-groove. The first half-groove and the second half-groove are combined to form a part of the correction channel. The correction drive mechanism is connected to the correction bracket, and its power output end is connected to the first movable block and the second movable block. It is used to drive the first movable block and the second movable block to move towards each other to form the correction channel, or to move away from each other to open the top of the correction channel to form a material inlet.

[0009] In conjunction with the first aspect, in one possible implementation of the nylon tube quick-connect fitting assembly system provided by the present invention, the correction block is provided with an air inlet, and the inner wall of the correction channel is provided with an air outlet groove that blows air downstream, and the air outlet groove is connected to the air inlet. The assembly assembly also includes a rotary drive assembly and a connector positioning block. The connector positioning block has the receiving groove on its top. The power output end of the rotary drive assembly is connected to the connector positioning block and is used to drive the connector positioning block to rotate around its own vertical axis.

[0010] In conjunction with the first aspect, in one possible implementation of the nylon tube quick-connect fitting assembly system provided by the present invention, the assembly assembly includes: The connector receiving mechanism includes a rotary drive assembly and a connector positioning block. The connector positioning block has the receiving groove on its top. The power output end of the rotary drive assembly is connected to the connector positioning block and is used to drive the connector positioning block to rotate around its own vertical axis. The second lifting mechanism has its power output end connected to the joint receiving mechanism, and is used to drive the joint receiving mechanism to move up and down. The pipe clamping mechanism includes a clamping drive element and a first gripper. The power output end of the clamping drive element is connected to the first gripper to drive the first gripper to move.

[0011] In conjunction with the first aspect, in one possible implementation of the nylon tube quick-connect fitting assembly system provided by the present invention, the assembly assembly further includes: A hole-expanding mechanism is provided on one side of the joint receiving mechanism. The hole-expanding mechanism is provided with a vertically arranged hole-expanding head, and the top of the hole-expanding head is provided with a tapered hole-expanding part. The slide mechanism is provided with a horizontally movable slide. The hole-expanding mechanism and the joint receiving mechanism are both fixedly connected to the slide, and are used to drive the hole-expanding mechanism or the joint receiving mechanism to align with the first gripper in the vertical direction. The power output end of the second lifting mechanism is connected to the slide mechanism.

[0012] In conjunction with the first aspect, in one possible implementation of the nylon tube quick-connect fitting assembly system provided by the present invention, the flipping mechanism includes: The base is connected to the power output end of the first lifting mechanism; A rotating shaft is horizontally positioned and rotatably engages with the base; the connector clamping mechanism is fixedly connected to the rotating shaft. A flip-drive element is connected to the base, and its power output end is fixedly connected to the rotating shaft to drive the rotating shaft to rotate.

[0013] In conjunction with the first aspect, in one possible implementation of the nylon tube quick-connect fitting assembly system provided by the present invention, a clamping mechanism is further included. The clamping mechanism is disposed between the rotating shaft and the receiving groove and connected to the base. It is used to cooperate with the base to clamp the fitting clamping mechanism when the fitting is pressed into the receiving groove.

[0014] Secondly, embodiments of the present invention provide a method for assembling a nylon tube quick-connect fitting, based on the aforementioned nylon tube quick-connect fitting assembly system, comprising the following steps: A. Control the first robotic arm to clamp the bent and shaped nylon tube into the first gripper, and make the first gripper clamp the lower end of the nylon tube; B, The second robotic arm picks up the connector and rotatably inserts it into the receiving column of the loading station; C. The conveying assembly transports the joint along the preset track through the correction channel to the unloading station; D, control the joint clamping mechanism to clamp the joint at the unloading station; the first lifting mechanism drives the joint clamping mechanism to move upward and remove the joint from the receiving column; the flipping mechanism drives the joint clamping mechanism to flip so that the joint is aligned vertically with the receiving groove on the assembly device; the first lifting mechanism drives the joint clamping mechanism to move downward and press the joint into the receiving groove. E. Align the connector on the receiving groove with the nylon tube on the first clamp, then move the receiving groove upward and insert the connector into the nylon tube to complete the assembly.

[0015] In conjunction with the second aspect, in one possible implementation of the nylon tube quick-connect fitting assembly method provided by the present invention, the second robotic arm is provided with an image recognition unit, and the inner wall of the correction channel is provided with an air outlet groove that blows air downstream. Step B further includes identifying the position and orientation of the connector using the image recognition unit; Step C further includes controlling whether the air outlet trough blows air according to the posture of the connector to be entered into the correction channel; when the connector is in a positive posture with the cross-section gradually decreasing along the conveying direction, the air outlet trough does not blow air, and when the connector is in a reverse posture with the cross-section gradually increasing along the conveying direction, the air outlet trough blows air. Step D, before pressing the connector into the receiving groove, also includes rotating the receiving groove to an angle that matches the forward or reverse orientation of the connector at the unloading station.

[0016] The beneficial effects of the nylon tube quick-connect fitting assembly system and method provided by the present invention are as follows: Compared with the prior art, the nylon tube quick-connect fitting assembly system and method provided by the present invention adopts a vertical layout with the receiving groove opening facing upward and the first clamping claw located on top. The overall structure has open space on the top and sides, which facilitates the feeding operation of automated equipment and makes up for the shortcomings of the closed structure of the existing horizontal layout.

[0017] The conveying assembly transports quick-connect fittings from the loading station to the unloading station via a guide channel through a receiving column. The guide channel uses cross-sectional matching to correct the quick-connect fittings to a preset posture, ensuring consistent angles upon arrival at the unloading station. The loading assembly clamps the quick-connect fittings using a fitting clamping mechanism, and a flipping mechanism drives the flipping to align the fitting with the receiving groove. A first lifting mechanism rises to remove the fitting and then descends to press it into the receiving groove. The second robotic arm only needs to perform the simple action of inserting the quick-connect fitting onto the receiving column, reducing the precision requirements for robotic arm control. The entire system achieves fully automated loading and assembly of quick-connect fittings and nylon tubing, improving assembly efficiency and consistency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the nylon tube quick-connect fitting assembly system provided in an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of part A in the image; Figure 3 A three-dimensional structural diagram of the assembly components in the nylon tube quick-connect fitting assembly system provided in an embodiment of the present invention; Figure 4 A three-dimensional structural diagram of the correction mechanism in the nylon tube quick-connect fitting assembly system provided in an embodiment of the present invention; Figure 5 A top view of the correction block in the correction mechanism of the nylon tube quick-connect fitting assembly system provided in the embodiment of the present invention; Figure 6 For along Figure 5 Schematic diagram of the cross-sectional structure along line AA; Figure 7 A three-dimensional structural diagram of the loading assembly in the nylon tube quick-connect fitting assembly system provided in an embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of two types of quick-connect connectors in the prior art; Explanation of reference numerals in the attached figures: 10. Correction mechanism; 11. Fixed part; 121. First movable block; 122. Second movable block; 131. Conical channel; 132. Equal diameter channel; 14. Air inlet; 15. Air outlet slot; 16. Correction bracket; 17. Correction drive mechanism; 21. Mounting bracket; 22. Circular track; 23. Receiving slide; 24. Receiving seat; 241. Receiving column; 25. Drive belt; 26. Transmission block; 27. Drive assembly; 271. Driven wheel; 272. Drive wheel; 273. Motor assembly; 31. Second robotic arm; 32. Storage tank; 41. Joint clamping mechanism; 42. Tilting mechanism; 421. Base; 422. Rotating shaft; 423. Tilting drive element; 43. Clamping mechanism; 44. First lifting mechanism; 45. Lateral displacement mechanism; 50. Joint receiving mechanism; 51. Connector positioning block; 511. Receiving groove; 52. Rotary drive assembly; 60. Hole reaming mechanism; 61. Reaming head; 71. Tube clamping mechanism; 711. Clamping drive element; 712. First gripper; 81. Second lifting mechanism; 82. Slide mechanism; 90. First robotic arm; 001. Bamboo segment. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0026] Please refer to the following: Figures 1 to 8The nylon tube quick-connect fitting assembly system provided by the present invention will now be described. The nylon tube quick-connect fitting assembly system includes an assembly component, a first robotic arm 90, a conveying component, a second robotic arm 31, and a loading component.

[0027] The assembly assembly is provided with a receiving groove 511 for receiving the connector and a first gripper 712 for holding the nylon tube. The receiving groove 511 has an upward opening and has the freedom to move up and down. The first gripper 712 is located on the upper side of the receiving groove 511. The first robotic arm 90 is used to hold the nylon tube and place it in the first gripper 712.

[0028] The conveying assembly includes multiple receiving columns 241 that circulate along a preset track, a loading station and a unloading station located on the preset track, and a correction channel located on the upper side of the preset track between the loading station and the unloading station. The cross-sectional shape of the correction channel in the vertical conveying direction is adapted to the projection of the joint along the conveying direction, and is used to correct the joint passing through the correction channel to a preset posture.

[0029] The second robotic arm 31 is used to grip the connector and insert it into the receiving column 241 located at the loading station.

[0030] The loading assembly is provided with a connector clamping mechanism 41, a flipping mechanism 42 and a first lifting mechanism 44. The connector clamping mechanism 41 is used to clamp the connector located at the unloading station. The flipping mechanism 42 is used to drive the connector clamping mechanism 41 to flip so that the connector is vertically aligned with the receiving groove 511 on the assembly device. The first lifting mechanism 44 is used to drive the connector clamping mechanism 41 to rise or fall.

[0031] The first lifting mechanism 44 is used to remove the connector located at the unloading station when the connector clamping mechanism is raised; and to press the connector on the upper side of the receiving groove 511 into the receiving groove 511 when it is lowered.

[0032] It should be noted that in this embodiment, the assembly system is applied to the automated insertion and assembly of nylon tubes and quick-connect fittings, replacing the semi-automatic assembly method of manual feeding, and realizing the fully automatic assembly of quick-connect fittings and nylon tubes.

[0033] The vertical layout of the receiving groove 511 with its opening facing upward and the first gripper 712 located above the receiving groove 511 allows the quick-connect connector and the nylon tube to move relative to each other in the vertical direction during the assembly process to achieve plug-in assembly. The open space on the top and sides of the overall structure facilitates material feeding operations by external equipment, making up for the shortcomings of the horizontal layout structure in the background technology, which is closed and not conducive to automated material feeding.

[0034] The first robotic arm 90 can be an automated grasping device, such as an industrial six-axis robotic arm or a four-axis robotic arm, capable of performing gripping and placing actions.

[0035] like Figure 1 and Figure 2 As shown, the conveying mechanism also includes a mounting frame 21, an annular track 22, several receiving slides 23, several receiving seats 24, and a driving mechanism. The mounting frame 21 is fixedly installed; the annular track 22 is fixedly connected to the mounting frame 21; several receiving slides 23 are spaced apart on the annular track 22 and have the freedom to slide along the annular track 22; the receiving seats 24 are connected to the receiving slides 23, and the receiving column 241 is fixedly installed on the top of the receiving seat 24. The bamboo segment 001 of the quick-connect connector is sleeved on the receiving column 241; a slot is provided on one side of the receiving slide 23; the driving mechanism includes a transmission belt 25, several transmission blocks 26, and a slide drive assembly 27. The transmission belt 25 is annular and is located inside the annular track 22. The transmission blocks 26 are located on the side of the transmission belt 25 facing the receiving slides 23 and are engaged with the slot; the slide drive assembly 27 is connected to the mounting frame 21, and the power output end is connected to the transmission belt 25 for driving the transmission belt 25 to move.

[0036] When the transmission belt 25 moves, the transmission block 26 moves together with the transmission belt 25. The transmission block 26 drives the receiving slide 23 to move synchronously along the annular track 22 by engaging with the slot. The transmission belt 25 can be a timing belt or a chain. The slide drive assembly 27 includes a driven pulley 271, a driving pulley 272, and a motor assembly 273. The driving pulley 272 and the driven pulley 271 are respectively located at both ends of the transmission belt 25 and mesh with the transmission belt 25. The motor assembly 273 is a stepper motor, servo motor, or frequency converter motor, etc., and is connected to the driving pulley 272 to drive the driving pulley 272 to rotate.

[0037] Each receiving post 241 is arranged sequentially along a preset track and moves cyclically. The top of the receiving post 241 is used for the insertion of the quick-connect connector. The loading station is located at a certain position on the preset track, where the second robotic arm 31 inserts the quick-connect connector onto the receiving post 241. The unloading station is located at another position on the preset track, where the loading assembly picks up the quick-connect connector for subsequent flipping and loading. The correction channel uses the matching relationship of the cross-sectional shape to forcibly correct the angular deflection of the quick-connect connector.

[0038] It should be noted that in this action, the second robotic arm 31 only needs to insert the quick-connect connector into the receiving post 241. This action is a simple clamping and placing action, and does not involve the high-precision pressing action of pressing the quick-connect connector into the interference fit receiving groove 511. Therefore, the control precision requirement of the second robotic arm 31 is relatively low.

[0039] Specifically, a storage slot 32 with a vibration unit can be set up to hold quick-connect connectors, and the vibration of the vibration unit can separate the quick-connect connectors, making it convenient for the second robotic arm 31 to grasp them.

[0040] The flipping mechanism 42 drives the connector clamping mechanism 41 to flip the clamped quick-connect connector together, flipping the quick-connect connector to an alignment with the receiving groove 511. The first lifting mechanism 44 drives the connector clamping mechanism 41 to rise or fall: when rising, the connector clamping mechanism 41 moves upward to remove the quick-connect connector from the receiving post 241; when falling, the connector clamping mechanism 41 moves downward to press the quick-connect connector into the receiving groove 511.

[0041] Specifically, the first lifting mechanism 44 is a vertically arranged linear slide module, or it can be a vertically arranged linear module such as a cylinder, hydraulic cylinder, or electric actuator.

[0042] The beneficial effects of the nylon tube quick-connect fitting assembly system and method provided in the embodiments of the present invention are as follows: Compared with the prior art, the nylon tube quick-connect fitting assembly system and method provided in the embodiments of the present invention adopts a vertical layout in which the receiving groove 511 is open upward and the first clamp 712 is located on the top. The upper and side spaces of the overall structure are open, which facilitates the feeding operation of automated equipment and makes up for the shortcomings of the closed structure of the existing horizontal layout.

[0043] The conveying assembly transports the quick-connect fittings from the loading station to the unloading station via the receiving column 241 and a correction channel. The correction channel uses cross-sectional matching to correct the quick-connect fittings to a preset posture, ensuring the consistency of the quick-connect fitting angles upon arrival at the unloading station. The loading assembly clamps the quick-connect fittings via the fitting clamping mechanism 41, and the flipping mechanism 42 drives the flipping to align the fitting with the receiving groove 511. The first lifting mechanism 44 rises to remove the fitting and then descends to press the fitting into the receiving groove 511. The second robotic arm 31 only needs to perform the simple action of inserting the quick-connect fitting into the receiving column 241, reducing the requirements for the robotic arm's control precision. The entire system achieves fully automated loading and assembly of quick-connect fittings and nylon tubes, improving assembly efficiency and consistency.

[0044] The preset posture here refers to the posture in which the horizontal axis of the quick-connect connector coincides with or is parallel to the axis of the correction channel.

[0045] Furthermore, in order to further reduce assembly and debugging accuracy and improve adaptability, in a specific embodiment of the nylon tube quick-connect fitting assembly system provided in this invention, the loading assembly further includes a lateral displacement mechanism 45. The power output end of the lateral displacement mechanism 45 is connected to the first lifting mechanism 44, which is used to drive the first lifting mechanism 44 to move between the unloading station and the receiving groove 511. While reducing assembly and debugging accuracy and improving adaptability, the length of the fitting clamping mechanism 41 can also be shortened, the lever arm can be shortened and the bending deformation can be reduced, thereby improving clamping stability and pressing reliability.

[0046] The lateral displacement mechanism 45 is a linear slide module arranged laterally, or it can be a linear module such as a cylinder, hydraulic cylinder, or electric actuator arranged laterally.

[0047] like Figure 1 and Figure 4 As shown, in a specific embodiment of the nylon tube quick-connect fitting assembly system provided in this invention, the conveying component further includes a correction mechanism 10. The correction mechanism 10 includes a correction bracket 16 and a correction block. The correction bracket 16 is fixedly set relative to a preset track. The correction block is connected to the correction bracket 16. A correction channel is provided on the correction block. The correction channel includes a tapered channel 131 and an equal-diameter channel 132. The large end of the tapered channel 131 is a feed inlet, and the small end is connected to the equal-diameter channel 132. The cross-sectional shape of the equal-diameter channel 132 in the vertical conveying direction is adapted to the projection of the fitting along the conveying direction.

[0048] It should be noted that, in this embodiment, the correction mechanism 10 consists of a correction bracket 16 and a correction block. The correction bracket 16 is fixedly disposed relative to the conveying assembly, providing installation support for the correction block. The correction block has a correction channel extending along the conveying direction, which consists of two parts: a tapered channel 131 and a channel of equal diameter 132.

[0049] The large end of the tapered channel 131 is the feed inlet, and the small end is connected to the equal-diameter channel 132. The feed inlet with its large end provides ample entry space for the quick-connect fitting, allowing it to smoothly enter the correction channel. After entering, the tapered channel 131 utilizes its geometric characteristic of gradually decreasing cross-section from the large end to the small end to provide progressive radial guidance for the quick-connect fitting, guiding it to gradually rotate to a near-correct angle and posture.

[0050] The equal-diameter channel 132 is connected to the small end of the tapered channel 131. The cross-sectional shape of the equal-diameter channel 132 perpendicular to the conveying direction matches the projection of the quick-connect fitting along the conveying direction in the correct orientation. When the quick-connect fitting's angle and orientation are not fully corrected to the correct position after being guided by the tapered channel 131, the protruding part of the quick-connect fitting will interfere with and contact the inner wall of the equal-diameter channel 132. It can only pass smoothly after being rotated to the correct preset orientation under the pushing force of the conveying mechanism. The equal-diameter channel 132 also plays a role in maintaining the angle of the quick-connect fitting.

[0051] In this embodiment, the correction mechanism 10 adopts a combination structure of correction bracket 16 and correction block. The correction block has a correction channel composed of a tapered channel 131 and a constant-diameter channel 132. The tapered channel 131 uses its tapered cross-sectional shape to provide radial centering and angular guidance for the quick-connect connector, allowing it to smoothly enter and gradually correct its orientation. The constant-diameter channel 132 uses its cross-sectional shape, which is adapted to the projection of the quick-connect connector in its correct posture, to correct the angle of the deflected quick-connect connector and maintain its correct posture. The two channels work together to achieve multiple functions of guiding entry, gradual correction, and angle maintenance, ensuring that the quick-connect connector returns to the preset correct angle posture after passing through the correction channel, that is, the posture in which the horizontal axis is parallel to the axis of the correction channel.

[0052] like Figures 4 to 6 As shown, in a specific embodiment of the nylon tube quick-connect fitting assembly system provided in this invention, the correction block includes a fixed part 11 and a movable part. The fixed part 11 is fixedly disposed and has a tapered channel 131. The movable part is disposed downstream of the fixed part 11 and has a channel 132 of a preset length with equal diameter. The movable part includes a first movable block 121, a second movable block 122, and a correction drive mechanism 17. The first movable block 121 and the second movable block 122 are respectively disposed on both sides of the vertical conveying direction in the horizontal direction of the correction channel. A first half-groove is formed on the first movable block 121, and a second half-groove is formed on the second movable block 122. The first half-groove and the second half-groove are joined together to form a partial correction channel. The correction drive mechanism 17 is connected to the correction bracket 16, and the power output end is connected to the first movable block 121 and the second movable block 122. It is used to drive the first movable block 121 and the second movable block 122 to move towards each other to form a correction channel, or to move away from each other to open the top of the correction channel to form a material intake port.

[0053] It should be noted that in this embodiment, the fixing part 11 is fixedly installed and located upstream of the correction channel, and the fixing part 11 is provided with a tapered channel 131. The quick-connect connector first enters the correction channel from the feed port of the fixing part 11, and receives radial centering guidance within the tapered channel 131.

[0054] The movable part is located downstream of the fixed part 11 and has a channel 132 of equal diameter with a preset length. The movable part consists of a first movable block 121, a second movable block 122, and a correction drive mechanism 17. The first movable block 121 and the second movable block 122 are respectively located on both sides of the correction channel in the horizontal direction perpendicular to the conveying direction, and each has a first half-groove and a second half-groove. When the two are joined together, they form a complete channel 132 of equal diameter. The correction drive mechanism 17 can be a pneumatic finger, a double-acting cylinder with a linkage mechanism, an electric push rod with a gear and rack symmetrical transmission mechanism, an electric gripper, or other drive elements capable of driving the two movable blocks to open and close synchronously and symmetrically.

[0055] When the correction drive mechanism 17 drives the first movable block 121 and the second movable block 122 to move towards each other, the two assemble to form a complete equal-diameter channel 132. The quick-connect connector completes angular correction along the conveying direction through the correction channel. When the correction drive mechanism 17 drives the two to move in opposite directions, the correction channel opens above the movable part, forming a material pick-up port. The connector clamping mechanism 41 of the loading assembly clamps the quick-connect connector from above through the material pick-up port and removes it upwards.

[0056] In this embodiment, the alignment block adopts a separate structure of a fixed part 11 and a movable part. The fixed part 11 is provided with a tapered channel 131 to guide the centering of the quick-connect connector. The movable part is composed of two openable and closable movable blocks. During the alignment stage, the two movable blocks are joined to form a complete equal-diameter channel 132 for angular alignment correction. During the material picking stage, the two movable blocks move in opposite directions to form a material picking port on the upper side, which facilitates the connector clamping mechanism 41 to pick up the quick-connect connector from above. This openable and closable structure takes into account both the integrity of the alignment function and the convenience of the material picking operation, which is conducive to improving the efficiency and reliability of the assembly process.

[0057] like Figure 5 and Figure 6 As shown, in a specific embodiment of the nylon tube quick-connect fitting assembly system provided in this invention, the correction block is provided with an air inlet 14, and the inner wall of the deviation channel is provided with an air outlet groove 15 that blows air downstream, and the air outlet groove 15 is connected to the air inlet 14.

[0058] The assembly assembly also includes a rotary drive assembly 52 and a connector positioning block 51. The top of the connector positioning block 51 is provided with a receiving groove 511. The power output end of the rotary drive assembly 52 is connected to the connector positioning block 51 and is used to drive the connector positioning block 51 to rotate around its own vertical axis.

[0059] It should be noted that, in this embodiment, regarding the air-blowing auxiliary structure on the correction block: the correction block is provided with an air inlet 14, which is connected to an external air source. An air outlet 15 is provided on the inner wall of the correction channel, which communicates with the air inlet 14, and the air outlet direction of the air outlet 15 faces downstream of the correction channel. The cross-sectional size of the quick-connect connector in the direction perpendicular to the bamboo segment 001 typically changes gradually, consisting of a large end and a small end.

[0060] like Figure 8 As shown, bamboo segment 001 is a columnar section with annular protrusions on the outer wall of the quick-connect connector. This section has a relatively uniform diameter and a regular annular structure on its surface, and is used to connect with nylon tubing.

[0061] When the quick-connector enters the correction channel with its smaller end facing forward, it passes through smoothly. However, when it enters with its larger end facing forward, the larger end has a larger cross-sectional size and is easily stuck near the feed inlet. The air outlet slot 15 solves this problem: when the quick-connector enters with its smaller end facing forward, the air outlet slot 15 blows air, creating a negative pressure suction at the entrance of the correction channel to actively attract the larger end of the quick-connector into the correction channel. At the same time, the downstream airflow inside the channel guides and pushes the quick-connector, helping it pass through smoothly and complete the correction.

[0062] The assembly assembly also includes a rotary drive assembly 52 and a connector positioning block 51. The connector positioning block 51 has a receiving groove 511 on its top. The power output end of the rotary drive assembly 52 is connected to the connector positioning block 51 and is used to drive the connector positioning block 51 to rotate around its own vertical axis.

[0063] On the one hand, it matches the orientation of the receiving groove 511 with the joint at the unloading station, so that the joints in both the forward and reverse orientations can be smoothly installed into the receiving groove 511.

[0064] On the other hand, when the quick-connect fitting is fed from the conveying assembly into the receiving groove 511, its circumferential angle may not be exactly at the target assembly angle. The rotary drive assembly 52 drives the fitting positioning block 51 to rotate together with the quick-connect fitting in the receiving groove 511, adjusting the orientation angle of the quick-connect fitting to the target assembly angle that matches the angle of the nylon tube end, and then stops. Subsequently, the receiving groove 511 moves upward to complete the insertion assembly. The rotary drive assembly 52 can be a motor, a rotary platform, a swing cylinder with gear transmission, or other drive element capable of driving the fitting positioning block 51 to rotate forward and backward around the vertical axis.

[0065] In this embodiment, by setting an air inlet 14 and an air outlet 15 on the correction block, a negative pressure suction force is generated when the quick-connect connector enters the correction channel in a reverse posture to actively attract the quick-connect connector into the channel, and the internal airflow guides it to pass smoothly. This solves the problem that the quick-connect connector is easily stuck in the reverse posture and expands the adaptability of the correction mechanism 10 to different entry postures. At the same time, by setting a rotary drive component 52 and a connector positioning block 51 on the assembly assembly, the quick-connect connector in the receiving groove 511 is rotated to the target assembly angle that matches the angle of the nylon tube end before insertion assembly. This ensures that the angle of the pipeline assembly meets the design requirements after insertion assembly, improving the assembly accuracy and adaptability.

[0066] like Figure 1 and Figure 3As shown, in a specific embodiment of the nylon tube quick-connect fitting assembly system provided in this invention, the assembly components include a fitting receiving mechanism 50, a second lifting mechanism 81, and a tube clamping mechanism 71. The fitting receiving mechanism 50 includes a rotary drive assembly 52 and a fitting positioning block 51. The top of the fitting positioning block 51 is provided with a receiving groove 511. The power output end of the rotary drive assembly 52 is connected to the fitting positioning block 51 and is used to drive the fitting positioning block 51 to rotate around its own vertical axis. The power output end of the second lifting mechanism 81 is connected to the fitting receiving mechanism 50 and is used to drive the fitting receiving mechanism 50 to move up and down. The tube clamping mechanism 71 includes a clamping drive element 711 and a first clamp 712. The power output end of the clamping drive element 711 is connected to the first clamp 712 and is used to drive the first clamp 712 to move.

[0067] It should be noted that in this embodiment, the receiving groove 511 is contoured to the quick-connect connector and is interference-fitted. The power output end of the rotary drive assembly 52 is connected to the connector positioning block 51, and is used to drive the connector positioning block 51 to rotate around its own vertical axis, rotating the quick-connect connector in the receiving groove 511 to the target angle. The rotary drive assembly 52 can be a motor, a rotary platform, a swing cylinder with gear transmission, a rotary cylinder, a rotary hydraulic cylinder, or other drive elements capable of driving the connector positioning block 51 to rotate forward and backward around the vertical axis.

[0068] The power output end of the second lifting mechanism 81 is connected to the connector receiving mechanism 50, and is used to drive the connector receiving mechanism 50 to move vertically. When the quick-connect connector has been inserted into the receiving groove 511 and the angle has been adjusted, the second lifting mechanism 81 drives the connector receiving mechanism 50 to move upwards towards the nylon tube in the tube clamping mechanism 71, so that the bamboo segment 001 of the quick-connect connector in the receiving groove 511 is inserted upwards into the lower end of the nylon tube to complete the insertion assembly. After assembly, the second lifting mechanism 81 drives the connector receiving mechanism 50 downwards to return to its initial position. The second lifting mechanism 81 is a vertically arranged linear slide module, but it can also be a cylinder, electric push rod, hydraulic cylinder, or servo motor with a lead screw, or other drive components capable of providing vertical lifting motion.

[0069] The tube clamping mechanism 71 consists of a clamping drive element 711 and a first gripper 712. The power output end of the clamping drive element 711 is connected to the first gripper 712, driving the first gripper 712 to perform clamping and releasing actions. After the first robotic arm 90 places the nylon tube in the first gripper 712, the clamping drive element 711 drives the first gripper 712 to clamp the lower end of the nylon tube, firmly clamping and positioning the nylon tube. The clamping drive element 711 can be a cylinder, pneumatic finger, or electric push rod, or other drive element capable of driving the opening and closing of the gripper.

[0070] In this embodiment, the assembly assembly consists of three parts: a connector receiving mechanism 50, a second lifting mechanism 81, and a pipe clamping mechanism 71, each with a clearly defined function. The connector receiving mechanism 50 rotates the quick-connect connector in the receiving groove 511 to the target assembly angle via a rotation drive component 52; the second lifting mechanism 81 drives the connector receiving mechanism 50 to move up and down to complete the insertion assembly; the pipe clamping mechanism 71 drives the first gripper 712 to clamp the nylon pipe via a clamping drive element 711. The various mechanisms work together in a clear and efficient manner, facilitating independent control and maintenance, and ensuring the accuracy and reliability of each action during the assembly process.

[0071] like Figure 3 As shown, in a specific embodiment of the nylon tube quick-connect fitting assembly system provided in this invention, the assembly assembly further includes a reaming mechanism 60 and a slide mechanism 82. The reaming mechanism 60 is located on one side of the fitting receiving mechanism 50 and has a vertically arranged reaming head 61 with a tapered reaming portion at the top. The slide mechanism 82 has a horizontally movable slide, and both the reaming mechanism 60 and the fitting receiving mechanism 50 are fixedly connected to the slide to drive the reaming mechanism 60 or the fitting receiving mechanism 50 to align with the first gripper 712 in the vertical direction.

[0072] The power output end of the second lifting mechanism 81 is connected to the slide mechanism 82.

[0073] It should be noted that in this embodiment, the hole-expanding mechanism 60 is used to expand the hole of the nylon tube to be inserted, so as to increase the inner diameter of its port to facilitate subsequent insertion and assembly with the quick-connect connector.

[0074] The slide mechanism 82 is equipped with a horizontally movable slide, and the reaming mechanism 60 and the connector receiving mechanism 50 are both fixedly connected to the slide. When the slide mechanism 82 drives the slide to move horizontally, the reaming mechanism 60 and the connector receiving mechanism 50 move horizontally together with the slide. By controlling the horizontal position of the slide, the reaming part can be moved to a position aligned with the first clamp 712 (i.e., the reaming head 61 is located directly below the first clamp 712) to perform the reaming process; after the reaming is completed, the slide moves horizontally to move the receiving groove 511 to a position aligned with the first clamp 712 (i.e., the receiving groove 511 is located directly below the first clamp 712) to perform the insertion assembly process.

[0075] The power output end of the second lifting mechanism 81 is connected to the slide mechanism 82. The second lifting mechanism 81 drives the slide mechanism 82 to move vertically. When the slide moves horizontally to the reaming station, the second lifting mechanism 81 drives the slide to move upward, and the reaming head 61 moves upward to approach the nylon tube in the first gripper 712 to complete the reaming. When the slide moves horizontally to the assembly station, the second lifting mechanism 81 drives the slide to move upward, and the quick connector in the receiving groove 511 moves upward to approach the nylon tube to complete the insertion and assembly.

[0076] It should be noted that the reaming and assembly processes share the same second lifting mechanism 81 and the same set of tube clamping mechanisms 71. The workstation switching between the two processes is achieved by the horizontal movement of the slide table. The nylon tube remains clamped in the first gripper 712 at all times, eliminating the need for re-clamping between reaming and assembly, thus reducing process changeover time and positioning errors. The slide table mechanism 82 can be a drive element that provides horizontal displacement, such as a cylinder with a linear guide, an electric push rod with a linear guide, or a servo motor with a lead screw and a linear guide.

[0077] In this embodiment, by setting up a hole-expanding mechanism 60 and a sliding table mechanism 82, the hole-expanding and insertion assembly processes are integrated into the same assembly component. Both the hole-expanding mechanism 60 and the connector receiving mechanism 50 are fixedly connected to the sliding table. The horizontal movement of the sliding table enables the switching of workstations between the two processes. The nylon tube remains clamped in the first gripper 712 at all times, eliminating the need for re-clamping and reducing process changeover time and positioning errors. The hole-expanding mechanism 60 and the connector receiving mechanism 50 share the same second lifting mechanism 81, resulting in a compact structure that helps reduce equipment costs and floor space, while simultaneously improving the efficiency of the connection from hole-expanding to assembly.

[0078] like Figure 1 and Figure 7 As shown, in a specific embodiment of the nylon tube quick-connect fitting assembly system provided in this invention, the flipping mechanism 42 includes a base 421, a rotating shaft 422, and a flipping drive element 423. The base 421 is connected to the power output end of the first lifting mechanism 44. The rotating shaft 422 is horizontally arranged and rotates with the base 421. The connector clamping mechanism 41 is fixedly connected to the rotating shaft 422. The flipping drive element 423 is connected to the base 421, and its power output end is fixedly connected to the rotating shaft 422 for driving the rotating shaft 422 to rotate.

[0079] It should be noted that in this embodiment, the base 421 is connected to the power output end of the first lifting mechanism 44, and the base 421 moves up and down with the lifting of the first lifting mechanism 44. The rotating shaft 422 is horizontally arranged and is rotatably engaged with the base 421 through a structure such as a bearing or bushing. The rotating shaft 422 has the freedom to rotate around its own horizontal axis. The connector clamping mechanism 41 is fixedly connected to the rotating shaft 422, and the connector clamping mechanism 41 rotates synchronously with the rotation of the rotating shaft 422. The flipping drive element 423 is connected to the base 421, and its power output end is fixedly connected to the rotating shaft 422, used to drive the rotating shaft 422 to rotate around its horizontal axis. The flipping drive element 423 can be a motor, a rotary cylinder, a rotary hydraulic cylinder, a stepper motor, a servo motor, or other drive element capable of driving the rotating shaft 422 to rotate forward and backward.

[0080] When the quick-connect connector is at the unloading station, it is usually in a vertical position inserted into the receiving post 241, while the receiving groove 511 is open upwards. The quick-connect connector needs to be rotated 180 degrees to align vertically with the receiving groove 511. When the flipping drive element 423 drives the rotating shaft 422 to rotate, the connector clamping mechanism 41 and the clamped quick-connect connector rotate together around the horizontal axis of the rotating shaft 422, realizing the change of posture. After the flipping is completed, the first lifting mechanism 44 drives the base 421 and the flipped connector clamping mechanism 41 to move down as a whole, pressing the quick-connect connector into the receiving groove 511.

[0081] In this embodiment, the flipping mechanism 42 adopts a combined structure of a base 421, a horizontal rotating shaft 422, and a flipping drive element 423. The rotating shaft 422 is horizontally arranged, and the connector clamping mechanism 41 is fixedly connected to the rotating shaft 422. The flipping drive element 423 drives the rotating shaft 422 to rotate, thereby causing the connector clamping mechanism 41 to flip. The base 421 is connected to the first lifting mechanism 44, and the flipping mechanism 42 rises and falls with the first lifting mechanism 44. The structure is simple and compact, and the flipping angle can be precisely controlled by controlling the rotation stroke of the flipping drive element 423, which can accurately flip the quick-connect connector to the target posture that is vertically aligned with the receiving groove 511.

[0082] In one embodiment, the flip drive element 423 employs a rotary hydraulic cylinder, enabling the rotary shaft 422 to remain stable under high torque. When pressing the quick-connect fitting into the receiving groove 511, the rotary shaft 422 and the fitting clamping mechanism 41 overcome reverse resistance and remain stable.

[0083] like Figure 1 and Figure 2 As shown, in a specific embodiment of the nylon tube quick-connect fitting assembly system provided in this invention, a clamping mechanism 43 is also included. The clamping mechanism 43 is disposed between the rotating shaft 422 and the receiving groove 511 and is connected to the base 421. It is used to cooperate with the base 421 to clamp the fitting clamping mechanism 41 when the fitting is pressed into the receiving groove 511.

[0084] It should be noted that in this embodiment, the flipping drive element 423 is a motor or a rotary cylinder, which has relatively poor stability when subjected to reverse torque. The function of the clamping mechanism 43 is as follows: when the first lifting mechanism 44 drives the flipped connector clamping mechanism 41 to move downward and press the quick-connect connector into the receiving groove 511, the interference fit between the quick-connect connector and the receiving groove 511 will generate a large reaction force (i.e., resistance that prevents the quick-connect connector from entering the receiving groove 511). This reaction force is transmitted to the rotating shaft 422 through the connector clamping mechanism 41, which may cause the connector clamping mechanism 41 and the rotating shaft 422 to deflect or loosen, resulting in unstable downward pressure and affecting the reliability of loading.

[0085] During the pressing process, the clamping mechanism 43 clamps and positions the flipped connector clamping mechanism 41, cooperating with the base 421 to form clamping constraints in both vertical and horizontal directions. This fixes the connector clamping mechanism 41 in the pressing position, preventing it from transmitting reverse resistance to the rotating shaft 422, which could cause the rotating shaft 422 to deflect or wobble. This ensures stable force transmission and reliable loading during the pressing process. The clamping mechanism 43 can be a rotary clamping cylinder or other drive element capable of applying clamping force or downward pressure to the flipped connector clamping mechanism 41.

[0086] Preferably, the clamping mechanism 43 is a rotary clamping cylinder, which is a compound action cylinder, and its piston rod rotates simultaneously during the extension or retraction process.

[0087] Using a rotary clamping cylinder as the downward driving element, a single element simultaneously achieves two functions: switching between the clearance position and the downward position of the downward pressing part, and the downward pressing action in the downward position. The structure is compact, reducing the number of driving elements and the complexity of control.

[0088] After loading is completed, clamping mechanism 43 releases and avoids connector clamping mechanism 41, connector clamping mechanism 41 releases quick connector, and flipping mechanism 42 and first lifting mechanism 44 reset.

[0089] Based on the same inventive concept, embodiments of the present invention provide a method for assembling a nylon tube quick-connect fitting, which, based on the aforementioned nylon tube quick-connect fitting assembly system, includes the following steps: A. Control the first robotic arm 90 to clamp the bent and shaped nylon tube to the first gripper 712, and make the first gripper 712 clamp the lower end of the nylon tube.

[0090] The lower end of the nylon tube is the end to be assembled (the flared end after the hole is enlarged). The grippers firmly hold and position the nylon tube. The axis of the nylon tube is set vertically, with the flared end facing down and directly opposite the connector receiving mechanism 50.

[0091] B. The second robotic arm 31 grips the connector and rotates it onto the receiving column 241 at the loading station.

[0092] In this step, the second robotic arm 31 only needs to perform a simple clamping and placing action to insert the quick-connect connector onto the receiving post 241. It does not involve the high-precision pressing action of pressing into the interference fit receiving groove 511, so the control precision requirements for the second robotic arm 31 are relatively low.

[0093] C. The conveying component transports the joint along the preset track through the correction channel to the unloading station.

[0094] After correction, the angular and orientation consistency of the quick-connect connectors was improved, providing a reliable orientation basis for subsequent loading.

[0095] D, control the joint clamping mechanism 41 to clamp the joint at the unloading station; the first lifting mechanism 44 drives the joint clamping mechanism 41 to move upward and remove the joint from the receiving column 241; the flipping mechanism 42 drives the joint clamping mechanism 41 to flip so that the joint is aligned with the receiving groove 511 on the assembly device; the first lifting mechanism 44 drives the joint clamping mechanism 41 to move downward and press the joint into the receiving groove 511.

[0096] This step is the core step of the loading process, and it is divided into four sub-actions that are executed sequentially: Sub-action D1: Control the connector clamping mechanism 41 to clamp the quick-connect connector located at the unloading station; Sub-action D2: The first lifting mechanism 44 drives the connector clamping mechanism 41 to move upward, removing the quick-connect connector from the receiving column 241; Sub-action D3: The flipping mechanism 42 drives the connector clamping mechanism 41 to flip 180 degrees, so that the quick-connect connector is flipped to a position that is vertically aligned with the receiving groove 511. Sub-action D4: The first lifting mechanism 44 drives the connector clamping mechanism 41 to move downward, pressing the quick-connect connector into the receiving groove 511.

[0097] E. Align the connector on the receiving groove 511 with the nylon tube on the first clamp 712, then move the receiving groove 511 upwards and insert the connector into the nylon tube to complete the assembly.

[0098] After assembly, the second lifting mechanism 81 drives the joint receiving mechanism 50 to move downwards back to the initial position.

[0099] The beneficial effects of the nylon tube quick-connect fitting assembly system and method provided in this invention are as follows: Compared with the prior art, the nylon tube quick-connect fitting assembly system and method provided in this invention are based on the aforementioned assembly system and implemented with a complete automated process of "robotic arm feeding of tube → fitting loading → conveying and correction → clamping and removal → flipping and alignment → pressing down and loading → lifting and inserting". Each step is automatically executed by the various mechanisms of the system, without the need for manual intervention in loading and assembly operations. This achieves fully automated assembly of nylon tubes and quick-connect fittings, significantly improving assembly efficiency and consistency, eliminating fatigue and quality fluctuations caused by continuous manual operation, and reducing labor costs. In step D, the first lifting mechanism 44 sequentially completes the actions of lifting and pressing down to load the parts. Utilizing the linear motion characteristics in the vertical direction, the quick-connect fitting is stably pressed into the interference fit receiving groove 511, ensuring reliable loading.

[0100] Furthermore, the interference fit between the quick-connect fitting and the receiving groove 511 will generate a large reaction force (i.e., resistance that prevents the quick-connect fitting from entering the receiving groove 511). This reaction force is transmitted to the rotating shaft 422 through the fitting clamping mechanism 41, which may cause the fitting clamping mechanism 41 and the rotating shaft 422 to deflect or loosen, resulting in unstable downward pressure and affecting the reliability of loading.

[0101] To solve the above problems, in a specific embodiment of the nylon tube quick-connect fitting assembly method provided in this invention, step D3 further includes applying downward pressure to the clamping mechanism 41 by the clamping mechanism 43 to clamp the fitting clamping mechanism 41.

[0102] During the pressing and loading process, the clamping mechanism 43 clamps and positions the flipped connector clamping mechanism 41 to prevent the connector clamping mechanism 41 from transmitting reverse resistance to the rotating shaft 422, which could cause the rotating shaft 422 to deflect or wobble. This ensures stable force transmission and reliable loading during the pressing process. The clamping mechanism 43 can be a rotary clamping cylinder or other drive element capable of applying clamping force or downward pressure to the flipped connector clamping mechanism 41.

[0103] In a specific embodiment of the nylon tube quick-connect fitting assembly method provided in this invention, the second robotic arm 31 is provided with an image recognition unit, and the inner wall of the correction channel is provided with an air outlet groove 15 that blows air downstream. Step B also includes identifying the position and orientation of the connector using an image recognition unit; Step C also includes controlling whether the air outlet duct 15 blows air according to the posture of the connector to be entered into the correction channel; when the connector is in a positive posture with the cross-section gradually decreasing along the conveying direction, the air outlet duct 15 does not blow air, and when the connector is in a reverse posture with the cross-section gradually increasing along the conveying direction, the air outlet duct 15 blows air. Step D, before pressing the connector into the receiving groove 511, also includes rotating the receiving groove 511 to an angle that matches the forward or reverse orientation of the connector at the unloading station.

[0104] It should be noted that in this embodiment, steps B, C, and D are further defined based on the above embodiments.

[0105] Further details regarding step B: The second robotic arm 31 is equipped with an image recognition unit. This unit can be a vision device capable of acquiring and recognizing images, such as an industrial camera, CCD camera, or 3D vision sensor, working in conjunction with image processing algorithm software to recognize the connector. After the image recognition unit identifies the position and orientation of the quick-connect connector, the second robotic arm 31 moves to the location of the quick-connect connector based on the recognition result, grips the connector with the correct orientation and angle, and inserts it into the receiving post 241 at the loading station. The image recognition unit provides visual guidance for the gripping and insertion actions of the second robotic arm 31, improving the accuracy and success rate of the movements.

[0106] Specifically, the second robotic arm 31 grips the bamboo segment 001 of the quick-connect connector. For quick-connect connectors of different models but adapted to nylon tubes with the same inner diameter, the size and specifications of the bamboo segment 001 are consistent. Therefore, by using the bamboo segment 001 as a unified gripping part, the same robotic arm and gripper can be adapted to multiple models of quick-connect connectors, reducing the number of times the gripper needs to be changed or the gripping parameters adjusted for different models, and improving the versatility and changeover efficiency of the equipment.

[0107] Bamboo segment 001 is the quick-connect fitting used to connect with the nylon tube during assembly.

[0108] Further clarification regarding step C: It should be noted that quick-connect fittings typically have a cross-section that gradually changes along the axial direction. Therefore, when a quick-connect fitting is inserted into the receiving post 241 and passes through the correction channel, there are two possible postures: a forward posture (the cross-section gradually decreases along the conveying direction, i.e., the small end is in front) and a reverse posture (the cross-section gradually increases along the conveying direction, i.e., the large end is in front). When the quick-connect fitting is in the forward posture, the small end in front can smoothly enter and pass through the correction channel, and the air outlet slot 15 does not blow air. When the quick-connect fitting is in the reverse posture, the large end in front is easily stuck at the entrance of the correction channel. At this time, the air outlet slot 15 blows air, generating airflow along the conveying direction at the entrance of the correction channel and forming a negative pressure suction force, actively attracting the large end of the quick-connect fitting into the correction channel, and guiding it smoothly through through the internal airflow. The air outlet slot 15 can be a compressed air nozzle, a fan outlet pipe, or other structure that can blow airflow in a downstream direction. The start and stop of the air outlet slot 15 can be controlled by the controller after the image recognition unit identifies the posture of the quick-connect fitting, or it can be controlled by the controller after detection by a sensor.

[0109] Further definition of step D: In step D, the receiving groove 511 is rotated to an angle that matches the forward or reverse orientation of the connector at the unloading station, so that the receiving groove 511 can be adapted to the quick-connect connector in the forward and reverse orientations respectively.

[0110] In this embodiment, by setting an image recognition unit in step B to identify the position and posture of the quick-connect connector, the second robotic arm 31 is guided to accurately grip and insert it onto the receiving post 241, improving the accuracy and success rate of the loading action. In step C, by controlling whether the air outlet sluice 15 blows air based on the forward or reverse posture of the quick-connect connector, no air is blown in the forward posture, allowing it to pass smoothly via geometric guidance; in the reverse posture, air blowing generates negative pressure suction to actively attract and guide it through, solving the problem of the quick-connect connector easily getting stuck in the reverse posture and expanding the adaptability of the correction channel to different entry postures. These measures collectively improve the intelligence level of the assembly process and the reliability of the assembly quality.

[0111] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A nylon tube quick-connect fitting assembly system, characterized in that, include: The assembly assembly is provided with a receiving groove (511) for receiving the connector and a first gripper (712) for clamping the nylon tube. The receiving groove (511) is open upward and has the freedom to move up and down. The first gripper (712) is located on the upper side of the receiving groove (511). The first robotic arm (90) is used to hold the nylon tube and place it in the first gripper (712); The conveying assembly includes multiple receiving columns (241) that circulate along a preset track, a loading station and a unloading station located on the preset track, and a correction channel located on the upper side of the preset track between the loading station and the unloading station. The cross-sectional shape of the correction channel in the vertical conveying direction is adapted to the projection of the joint along the conveying direction, and is used to correct the joint passing through the correction channel to a preset posture. The second robotic arm (31) is used to grip the connector and insert it into the receiving column (241) located at the loading station; The loading assembly is provided with a connector clamping mechanism (41), a flipping mechanism (42) and a first lifting mechanism (44). The connector clamping mechanism (41) is used to clamp the connector located at the unloading station. The flipping mechanism (42) is used to drive the connector clamping mechanism (41) to flip so that the connector is vertically aligned with the receiving groove (511) on the assembly device. The first lifting mechanism (44) is used to drive the connector clamping mechanism (41) to rise or fall.

2. The nylon tube quick-connect fitting assembly system as described in claim 1, characterized in that, The conveying assembly further includes a correction mechanism (10), which includes: The alignment bracket (16) is fixedly installed relative to the preset track; The correction block is connected to the correction bracket (16). The correction block has the correction channel, which includes a tapered channel (131) and an equal diameter channel (132). The large end of the tapered channel (131) is the feed inlet, and the small end is connected to the equal diameter channel (132). The cross-sectional shape of the equal diameter channel (132) in the direction perpendicular to the conveying direction is adapted to the projection of the joint along the conveying direction.

3. The nylon tube quick-connect fitting assembly system as described in claim 2, characterized in that, The correction block includes a fixed part (11) and a movable part. The fixed part (11) is fixedly disposed and has the tapered channel (131). The movable part is disposed downstream of the fixed part (11) and has the equal-diameter channel (132) of a preset length. The movable part includes: The first movable block (121) and the second movable block (122) are respectively located on both sides of the correction channel in the horizontal direction perpendicular to the conveying direction. The first movable block (121) has a first half-groove, and the second movable block (122) has a second half-groove. The first half-groove and the second half-groove are combined to form a partial correction channel. The correction drive mechanism (17) is connected to the correction bracket (16), and its power output end is connected to the first movable block (121) and the second movable block (122). It is used to drive the first movable block (121) and the second movable block (122) to move towards each other to form the correction channel, or to move away from each other to open the top of the correction channel to form a material intake port.

4. The nylon tube quick-connect fitting assembly system as described in claim 2, characterized in that, The correction block is provided with an air inlet (14), and the inner wall of the correction channel is provided with an air outlet groove (15) that blows air downstream. The air outlet groove (15) is connected to the air inlet (14). The assembly assembly is further provided with a rotary drive assembly (52) and a connector positioning block (51). The connector positioning block (51) has the receiving groove (511) on its top. The power output end of the rotary drive assembly (52) is connected to the connector positioning block (51) to drive the connector positioning block (51) to rotate around its own vertical axis.

5. The nylon tube quick-connect fitting assembly system as described in claim 1, characterized in that, The assembly components include: The connector receiving mechanism (50) includes a rotary drive assembly (52) and a connector positioning block (51). The connector positioning block (51) has the receiving groove (511) on its top. The power output end of the rotary drive assembly (52) is connected to the connector positioning block (51) to drive the connector positioning block (51) to rotate around its own vertical axis. The second lifting mechanism (81) has its power output end connected to the joint receiving mechanism (50) and is used to drive the joint receiving mechanism (50) to move up and down. The pipe clamping mechanism (71) includes a clamping drive element (711) and a first gripper (712). The power output end of the clamping drive element (711) is connected to the first gripper (712) to drive the first gripper (712) to move.

6. The nylon tube quick-connect fitting assembly system as described in claim 5, characterized in that, The assembly assembly also includes: A hole-expanding mechanism (60) is provided on one side of the joint receiving mechanism (50). The hole-expanding mechanism (60) is provided with a vertically arranged hole-expanding head (61). The top of the hole-expanding head (61) is provided with a tapered hole-expanding part. The slide mechanism (82) is provided with a horizontally movable slide. The hole-expanding mechanism (60) and the joint receiving mechanism (50) are both fixedly connected to the slide and are used to drive the hole-expanding mechanism (60) or the joint receiving mechanism (50) to align with the first gripper (712) in the vertical direction. The power output end of the second lifting mechanism (81) is connected to the slide mechanism (82).

7. The nylon tube quick-connect fitting assembly system as described in claim 1, characterized in that, The flipping mechanism (42) includes: The base (421) is connected to the power output end of the first lifting mechanism (44); A rotating shaft (422) is horizontally positioned and rotatably engages with the base (421). The connector clamping mechanism (41) is fixedly connected to the rotating shaft (422). A flip drive element (423) is connected to the base (421), and its power output end is fixedly connected to the rotating shaft (422) to drive the rotating shaft (422) to rotate.

8. The nylon tube quick-connect fitting assembly system as described in claim 7, characterized in that, It also includes a clamping mechanism (43), which is located between the rotating shaft (422) and the receiving groove (511) and connected to the base (421). It is used to cooperate with the base (421) to clamp the joint clamping mechanism (41) when the joint is pressed into the receiving groove (511).

9. A method for assembling a quick-connect fitting for a nylon tube, characterized in that, The nylon tube quick-connect fitting assembly system according to any one of claims 1 to 8 includes the following steps: A. Control the first robotic arm (90) to clamp the bent and shaped nylon tube to the first gripper (712), and make the first gripper (712) clamp the lower end of the nylon tube; B, the second robotic arm (31) grips the connector and rotates it onto the receiving column (241) at the loading station; C. The conveying assembly transports the joint along the preset track through the correction channel to the unloading station; D, control the joint clamping mechanism (41) to clamp the joint at the unloading station; the first lifting mechanism (44) drives the joint clamping mechanism (41) to move upward and remove the joint on the receiving column (241); the flipping mechanism (42) drives the joint clamping mechanism (41) to flip so that the joint is aligned with the receiving groove (511) on the assembly device; the first lifting mechanism (44) drives the joint clamping mechanism (41) to move downward and press the joint into the receiving groove (511); E, align the connector on the receiving groove (511) with the nylon tube on the first clamp (712), then move the receiving groove (511) upward and insert the connector into the nylon tube to complete the assembly.

10. The nylon tube quick-connect fitting assembly method as described in claim 9, characterized in that, The second robotic arm (31) is equipped with an image recognition unit, and the inner wall of the correction channel is provided with an air outlet groove (15) that blows air downstream. Step B further includes identifying the position and orientation of the connector using the image recognition unit; Step C also includes controlling whether the air outlet sluice (15) blows air according to the posture of the connector to be entered into the correction channel; when the connector is in a positive posture with the cross section gradually decreasing along the conveying direction, the air outlet sluice (15) does not blow air, and when the connector is in a reverse posture with the cross section gradually increasing along the conveying direction, the air outlet sluice (15) blows air. Step D, before pressing the connector into the receiving groove (511), further includes rotating the receiving groove (511) to an angle that matches the forward or reverse orientation of the connector at the unloading station.

Images