An assembly for a medical connector

Abstract

The application provides an assembling device for a medical joint inclined pipe interface and a catheter, and belongs to the technical field of medical equipment. The device comprises a K joint positioning mechanism, a K joint lifting material taking and overturning mechanism, a second catheter clamping mechanism and a glue adding mechanism. The glue adding mechanism is arranged with a first catheter jig loaded with a second assembling body and a second catheter jig loaded with a second catheter on the front and back sides. The second assembling body comprises a first catheter and a K joint. The K joint positioning mechanism positions and clamps the K joint. The K joint lifting material taking and overturning mechanism clamps and overturns the K joint to unify the direction of the inclined pipe interface. The second catheter clamping mechanism clamps the second catheter. The second catheter clamping mechanism clamps the second catheter and completes the catheter glue adding operation in the glue adding mechanism. Then, the end of the second catheter after glue adding is assembled with the inclined pipe interface of the K joint on the K joint lifting material taking and overturning mechanism to form a third assembling body. The application realizes the assembling of the medical joint with the inclined pipe interface and the catheter.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment and relates to an assembly device for an oblique tube interface of a medical connector and a catheter. Background Art

[0002] Infusion sets are widely used in the medical infusion field and are generally assembled from various medical connectors and catheters. For example, a Chinese patent application numbered 2016105835181 discloses a medical pump connection and catheter assembly device. The device comprises a retrieving mechanism for clamping the pump connection and a tube clamping mechanism for clamping the catheter to be assembled. The retrieving mechanism includes retrieving fingers for clamping the pump connection, a clamping source for driving the retrieving fingers to open and close, and a lifting cylinder for driving the retrieving fingers to rise and fall. The tube clamping mechanism includes a tube clamping assembly for clamping the catheter to be assembled and a tube clamping source for driving the clamping assembly to open and close. The retrieving fingers clamp the pump connection to be assembled and the catheter on the tube clamping assembly for plug-in assembly.

[0003] However, the aforementioned medical pump connector has a T-shaped structure, with the side catheter connectors perpendicular to the main body of the connector. This simplifies the assembly process by simply gripping and removing the connector from the discharge tray. However, the aforementioned assembly device is inadequate for medical connectors with oblique side catheter connectors. This is particularly true for secondary assembly of pre-assembled medical connectors with oblique connector connectors. Existing assembly equipment cannot meet the requirements of automated assembly. To address these shortcomings in the existing technology, further research and development is necessary to address these existing shortcomings. Summary of the Invention

[0004] In view of the defects of the prior art, the object of the present invention is to provide a device which has a reasonable design, high assembly efficiency and can realize the assembly of the oblique tube interface of the medical connector and the catheter.

[0005] To achieve the above objectives, the technical solutions of the present invention are as follows.

[0006] The application relates to an assembling device for a medical joint inclined pipe interface and a catheter, which comprises a K joint positioning mechanism, a K joint lifting and material taking and overturning mechanism, a second catheter clamping mechanism and a glue adding mechanism, the glue adding mechanism is arranged with a first catheter jig loaded with a second assembling body and a second catheter jig loaded with a second catheter on the front and back sides, the second assembling body comprises a first catheter and a K joint, the K joint comprises a joint part, a straight pipe interface and an inclined pipe interface, the joint part is coaxially communicated with the straight pipe interface, the inclined pipe interface is connected to the middle part of the straight pipe interface, and the two have a certain included angle, the straight pipe interface is in a connected state with the first catheter, and the inclined pipe interface and the joint part are both directed towards the second catheter jig; the K joint positioning mechanism is located below the first catheter jig and is directed towards the inclined pipe interface to clamp and position the K joint, the K joint lifting and material taking and overturning mechanism is located above the first catheter jig to clamp and overturn the K joint and unify the direction of the inclined pipe interface, and the second catheter clamping mechanism is located above the second catheter jig to clamp the second catheter; the second catheter clamping mechanism clamps the second catheter and completes the catheter glue adding operation in the glue adding mechanism, and then assembles and assembles the end part of the second catheter after glue adding with the inclined pipe interface of the K joint on the K joint lifting and material taking and overturning mechanism to form a third assembling body.

[0007] The K joint lifting and material taking and overturning mechanism comprises a K joint lifting assembly, a K joint overturning assembly and a K joint material clamping assembly, the K joint material clamping assembly is arranged in the K joint overturning assembly, the K joint overturning assembly is installed at the lower part of the K joint lifting assembly, and the K joint material clamping assembly is driven to move up and down and overturn by the K joint lifting assembly.

[0008] Further, the K joint positioning mechanism comprises a positioning clamping finger assembly, a positioning lifting plate, a positioning lifting driving source and a positioning translation driving source, the positioning lifting driving source is fixed on a rack, the fixed end of the positioning translation driving source is installed on the movable end of the positioning lifting driving source, the movable end of the positioning translation driving source is directed towards the first catheter jig and is fixedly connected with the positioning lifting plate, and the positioning clamping finger assembly is installed on the positioning lifting plate and can be driven to move up and down and back and forth.

[0009] The positioning clamping finger assembly comprises a positioning clamping finger cylinder, a positioning left clamping finger and a positioning right clamping finger, the positioning left clamping finger and the positioning right clamping finger are respectively fixed on the left and right movable blocks of the positioning clamping finger cylinder, and the positioning left clamping finger and the positioning right clamping finger are controlled to be away from or close to each other by the positioning clamping finger cylinder.

[0010] The upper parts of the positioning left clamping finger and the positioning right clamping finger are oppositely provided with a positioning semicircular groove capable of accommodating the joint part of the K joint, one side of the positioning right clamping finger away from the first catheter jig is provided with a transverse lap piece extending towards the positioning left clamping finger, the transverse lap piece is located below the positioning semicircular groove, and the upper end face of the transverse lap piece is flat.

[0011] Further, the K joint clamp assembly comprises a plurality of clamp assemblies, and each clamp assembly comprises a K joint clamp driving source and a clamp left clamp finger and a clamp right clamp finger. The fixed end of the K joint clamp driving source is fixedly installed on the K joint turnover assembly, and the K joint clamp driving source controls the opening and closing of the clamp left clamp finger and the clamp right clamp finger. The opposite side of the clamp left clamp finger and the clamp right clamp finger is provided with an inner convex clamp finger protrusion. The clamp finger protrusion is provided with a clamp inclined groove and a clamp horizontal groove. The clamp inclined groove can accommodate a inclined pipe connector, and the clamp horizontal groove can accommodate a straight pipe connector. The clamp horizontal groove is a through groove with openings at the front and back ends. The clamp inclined groove communicates with the clamp horizontal groove, and a clamp circular groove is arranged at the intersection.

[0012] Further, the front of the clamp finger protrusion of the clamp left clamp finger and the inner side of the clamp left clamp finger are provided with a catheter left clamp plate. The thickness of the catheter left clamp plate is less than the thickness of the clamp finger protrusion. The front end of the catheter left clamp plate extends to the right and is provided with a T-shaped clamp left protrusion. The clamp left protrusion has a strip-shaped clamp horizontal strip and a left protrusion below the clamp horizontal strip. At the same time, the clamp horizontal groove is also located below the clamp horizontal strip.

[0013] The front of the clamp finger protrusion of the clamp right clamp finger and the inner side of the clamp right clamp finger are provided with a catheter right clamp plate. The thickness of the catheter right clamp plate is less than the thickness of the clamp finger protrusion. The front end of the catheter right clamp plate extends to the left and is provided with a clamp right protrusion. The clamp right protrusion corresponds to the left protrusion and is also located below the clamp horizontal strip. The clamp horizontal strip can move left and right above the clamp right protrusion.

[0014] Further, the bottom of the clamp left clamp finger and the clamp right clamp finger is provided with a joint clamping groove in an inverted L shape. The joint clamping groove is outwardly open, and the vertical edge of the joint clamping groove is perpendicular to the direction of the clamp horizontal groove. The joint clamping groove can accommodate the side of the joint part of the K joint.

[0015] Further, the K joint lifting assembly comprises a lifting fixed plate, and the lifting fixed plate is fixed on the rack through a lifting support. A clamp lifting driving source is vertically arranged on the lifting fixed plate. The clamp lifting driving source is fixed on the lifting fixed plate, and the movable end of the clamp lifting driving source faces downward and is connected to a lifting top plate. A plurality of lifting guide columns are arranged between the lifting fixed plate and the lifting top plate. The top of each lifting guide column is connected to a lifting limiting plate, which is used to limit the descending height of the lifting top plate.

[0016] The k-joint is further mounted on the lower portion of the lifting top plate, and the material-clamping lifting driving source drives the lifting top plate and the K-joint flipping assembly to move up and down; the k-joint flipping assembly comprises a flip left support plate and a flip right support plate respectively fixedly mounted on the left and right sides of the bottom of the lifting top plate, and a flip plate is rotatably connected between the flip left support plate and the flip right support plate, and the flip plate and the flip right support plate are connected by an active flip shaft passing through the flip right support plate, and the flip plate and the flip left support plate are connected by a driven flip shaft passing through the flip left support plate; the active flip shaft is also connected to the outer side of the active flip shaft, and a rack is engaged with the upper part of the cylindrical gear, and the rack can slide back and forth along the guide rail installed on the flip right support plate, and the K-joint flipping assembly also includes a flipping driving source, whose movable end is connected and fixed to the rack through a flip connecting block, and the fixed end of the flip driving source is fixedly connected to the flip right support plate through a bracket; the flip driving source drives the rack to move back and forth, driving the cylindrical gear to rotate, and then driving the active flip shaft and the flip plate to rotate, thereby realizing the flipping effect of the flip plate.

[0017] Furthermore, the assembly device also includes a K-catheter clamping and docking assembly, which is located at the rear end of the K-connector clamping assembly. The K-catheter clamping and docking assembly includes a docking lifting drive source, a docking lifting connecting plate, a docking clamping drive source, and a docking left clamping finger and a docking right clamping finger. The fixed end of the docking lifting drive source is fixedly connected to the lifting fixed plate, and the movable end of the docking lifting drive source is connected to the docking lifting connecting plate. Several docking clamping drive sources are fixed on the bottom surface of the docking lifting connecting plate. The docking clamping drive source drives the opening and closing of the docking left clamping finger and the docking right clamping finger; the opposite surfaces of the docking left clamping finger and the docking right clamping finger are provided with semicircular oblique tube clamping grooves, and the rear end of the oblique tube clamping groove is provided with an outward-expanding catheter guide groove.

[0018] Further, the assembly device further comprises a first catheter clamping assembly mounted on the lifting top plate and synchronously lifted with the lifting top plate and the K joint clamping assembly; the first catheter clamping assembly comprises a first catheter transverse driving source and a catheter clamping left fixed plate and a catheter clamping right fixed plate, the fixed end of the first catheter transverse driving source is fixedly connected with the lifting top plate, the catheter clamping left fixed plate and the catheter clamping right fixed plate are respectively connected with the movable end of the first catheter transverse driving source through the clamping plate connecting block, and the first catheter transverse driving source controls the left and right transverse movement of the catheter clamping left fixed plate and the catheter clamping right fixed plate; the catheter clamping left fixed plate and the catheter clamping right fixed plate are arranged in a staggered manner in front and back, a plurality of catheter clamping left clamping fingers arranged at intervals are connected with the catheter clamping left fixed plate, the catheter clamping left clamping fingers are arranged on the side facing the catheter clamping right fixed plate, the catheter clamping right clamping fingers arranged at intervals are correspondingly arranged on the catheter clamping right fixed plate, the catheter clamping left clamping finger is provided with a catheter clamping left protruding block at the end of the bottom facing right, the catheter clamping right clamping finger is provided with a catheter clamping right protruding block at the end of the bottom facing left, the catheter clamping left clamping finger is provided with a catheter limiting piece facing right on the front and back side walls of the middle part, the catheter clamping right clamping finger is correspondingly provided with a catheter limiting groove recessed on the front and back side walls of the middle part, and the catheter limiting piece transversely moves along the catheter limiting groove; the first catheter transverse driving source drives and controls the opening and closing of the catheter clamping left clamping finger and the catheter clamping right clamping finger, when the catheter clamping left protruding block and the catheter clamping right protruding block are in contact, the upper end of the catheter clamping left protruding block, the upper end of the catheter clamping right protruding block, the right side wall of the catheter clamping left clamping finger, the left side wall of the catheter clamping right clamping finger and the lower end surface of the catheter limiting piece jointly form a catheter accommodating space, and the first catheter is clamped.

[0019] Further, the first catheter jig comprises a translation bottom plate, a first clamping position bottom plate, a second clamping position bottom plate, a first catheter clamping block, a second catheter clamping block and a third catheter clamping block, the front end of the second clamping position bottom plate is fixed below the rear end of the translation bottom plate, the first clamping position bottom plate is fixed on the translation bottom plate, a plurality of first clamping position bottom plates can be fixed on the translation bottom plate to form multi-station operation, the front and back ends of the first clamping position bottom plate are respectively fixed with the first catheter clamping block and the second catheter clamping block for accommodating the front and back pipe parts of the first catheter; the rear end of the second clamping position bottom plate is fixed with the third catheter clamping block for accommodating the front part of the second catheter; the middle part of the second clamping position bottom plate is further provided with a positioning through hole penetrating upward and downward for freely falling of the K joint and for the positioning clamping finger assembly of the K joint positioning mechanism to pass through the K joint from bottom to top for positioning and clamping; the first catheter clamping block, the second catheter clamping block and the third catheter clamping block are all provided with catheter clamping grooves with openings facing upward.

[0020] Compared with the prior art, the assembly device realizes the assembly of the medical joint with the inclined pipe interface and the catheter, the K joint positioning mechanism and the K joint lifting and taking mechanism are arranged to successively position and clamp the K joint on the first catheter jig, so that the inclined pipe interface of the K joint is uniformly oriented, the K joint and the second catheter are uniformly and high-precision assembled, and the overall device structure is ingenious and the assembly efficiency is high.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the schematic diagram of the overall assembly device of the present application.

[0022] Figure 2 is the schematic diagram of the structure of the second assembly body in the embodiment of the present application.

[0023] Figure 3 is the schematic diagram of the structure of the K joint in the embodiment of the present application.

[0024] Figure 4 is the schematic diagram of the structure of the K joint positioning mechanism in the embodiment of the present application.

[0025] Figure 5 is the schematic diagram of the structure of the positioning left and right clamping fingers in the K joint positioning mechanism.

[0026] Figure 6 is the schematic diagram of the structure of the first catheter jig in the embodiment of the present application.

[0027] Figure 7 is the schematic diagram of the structure of the K joint lifting and material taking and overturning mechanism in the embodiment of the present application.

[0028] Figure 8 is the schematic diagram of the structure of the material clamping assembly in the K joint material clamping assembly.

[0029] Figure 9 is the side view of the left and right material clamping fingers in the material clamping assembly.

[0030] Figure 10 is the perspective view of the left and right material clamping fingers in the material clamping assembly.

[0031] Figure 11 is the schematic diagram of the cooperation between the left material clamping finger and the K joint.

[0032] Figure 12 is the schematic diagram of the K joint positioning, clamping and overturning process.

[0033] Figure 13 is the schematic diagram of the structure of the K catheter clamping and docking assembly in the embodiment of the present application.

[0034] Figure 14 is the schematic diagram of the structure of the first catheter clamping assembly in the embodiment of the present application.

[0035] Figure 15 is the schematic diagram of the structure of the left and right docking clamping fingers in the first catheter clamping assembly.

[0036] A1, first conduit; A2, second conduit; A3, K joint; A31, joint part; A32, straight pipe interface; A33, inclined pipe interface; A4, flat joint; B1, first conduit jig; B11, translation base plate; B12, first clamping base plate; B13, second clamping base plate; B14, first conduit clamping block; B15, second conduit clamping block; B16, third conduit clamping block; B17, positioning aperture; B18, conduit clamping groove; B2, second conduit jig; C1, first assembly; C2, second assembly; C3, third assembly; 1, K joint positioning mechanism; 11, positioning clamp finger assembly; 111, positioning clamp finger cylinder; 112, positioning left clamp finger; 113, positioning right clamp finger; 114, positioning semicircular groove; 115, crosspiece; 116, crosspiece vacancy; 12, positioning lifting plate; 13, positioning lifting drive source; 14, positioning translation drive source; 2, K joint lifting material taking and overturning mechanism; 3, K joint lifting assembly; 31, lifting fixed plate; 32, clamping lifting drive source; 33, lifting top plate; 34, lifting guide column; 35, lifting limiting plate; 4, K joint overturning assembly; 41, overturning left support plate; 42, overturning right support plate; 43, overturning plate; 44, cylindrical gear; 45, rack; 46, guide rail; 47, overturning drive source; 48, overturning connecting block; 5, K joint clamping assembly; 51, clamping assembly; 52, K joint clamping drive source; 53, clamping left clamp finger; 54, clamping right clamp finger; 55, clamp finger protrusion; 551, clamping inclined groove; 552, clamping cross groove; 553, clamping semicircular groove; 56, conduit left clamping plate; 561, clamping plate left protrusion; 562, clamping plate crosspiece; 563, left side protrusion; 57, conduit right clamping plate; 571, clamping plate right protrusion; 6, first conduit clamping assembly; 61, first conduit translation drive source; 62, conduit clamping left fixed plate; 63, conduit clamping right fixed plate; 64, conduit clamping left clamp finger; 65, conduit clamping right clamp finger; 66, conduit clamping left protrusion; 67, conduit clamping right protrusion; 68, conduit limiting piece; 69, conduit limiting groove; 7, K conduit clamping butt joint assembly; 71, butt joint lifting drive source; 72, butt joint lifting connecting plate; 73, butt joint clamping drive source; 74, butt joint left clamp finger; 75, butt joint right clamp finger; 76, inclined pipe clamping groove; 77, conduit guide groove; 78, butt joint connecting block; 8, second conduit clamping mechanism; 81, second conduit clamping assembly; 82, second conduit horizontal movement assembly; 9, rubber adding mechanism. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and are not used to limit the present application. On the contrary, the present application covers any substitution, modification, equivalent method and scheme defined by the claims within the spirit and scope of the present application. Further, in order to make the public have a better understanding of the present application, some specific details are described in the following detailed description of the present application. The present application can also be completely understood without the description of these details by those skilled in the art.

[0038] As shown in Figure 1 , an assembly device of a bevel joint interface of a medical connector and a catheter includes a K connector positioning mechanism 1, a K connector lifting and taking-over mechanism 2, a first catheter clamping assembly 6, a K catheter clamping and docking assembly 7, a second catheter clamping mechanism 8 and a glue adding mechanism 9. The glue adding mechanism 9 is arranged on the front and back sides of the first catheter jig B1 loaded with a second assembly body C2 and the second catheter jig B2 loaded with a second catheter A2.

[0039] As shown in Figure 2 , the second assembly body C2 includes a first catheter A1, a K connector A3 and a flat connector A4. The second assembly body C2 has been assembled in the previous station and is transported to the station of the embodiment of the present application by the first catheter jig B1.

[0040] As shown in Figure 3 , the K connector A3 includes a connector part A31, a straight pipe interface A32 and a bevel pipe interface A33. The connector part A31 is coaxially communicated with the straight pipe interface A32. The bevel pipe interface A33 is connected to the middle part of the straight pipe interface A32 in the direction towards the connector part A31. The two have a certain included angle (45 degrees). In the embodiment, the bevel pipe interface A33 and the connector part A31 are both towards the second catheter jig B2. The outer diameter of the connector part A31 is larger than the outer diameter of the straight pipe interface A32. The bevel pipe interface A33 is tangent to the connector part A31 or only the pipe wall is connected. The connector part A31 can be assembled with a nut. The straight pipe interface A32 needs to be assembled with the first catheter A1 and the bevel pipe interface A33 needs to be assembled with the second catheter A2. In the embodiment, the first catheter A1 is a short catheter and the second catheter A2 is a long catheter.

[0041] The purpose of the present application is to connect the second assembly body C2 (the first catheter A1 + the flat connector A4 + the K connector A3) with the second catheter A2 to form a third assembly body C3 (the first catheter A1 + the flat connector A4 + the K connector A3 + the second catheter A2). In addition, it is explained that the first assembly body C1 is assembled by the first catheter A1 + the flat connector A4.

[0042] In the initial state of the second assembly C2, the K joint A3 is in a natural inclined state and is easy to shake with the first conduit jig B1.

[0043] As shown in Figure 1 , the K joint positioning mechanism 1 is located below the first conduit jig B1 and towards the inclined pipe interface A33 to position and hold the K joint A3, the K joint lifting and taking-over flipping mechanism 2 is located above the first conduit jig B1 to hold and flip the K joint A3 and unify the orientation of the inclined pipe interface A33, the second conduit holding mechanism 8 is located above the second conduit jig B2 to hold the second conduit A2; the second conduit holding mechanism 8 holds up the second conduit A2 and completes the conduit glue adding operation in the glue adding mechanism 9, and then assembles and assembles the end of the second conduit A2 after glue adding with the inclined pipe interface A33 of the K joint A3 on the K joint lifting and taking-over flipping mechanism 2 to form the third assembly C3.

[0044] The second conduit holding mechanism 8 includes a second conduit holding assembly 81 that holds and lifts the second conduit and a second conduit horizontal moving assembly 82 that can hold and drive the front end of the second conduit A2 to move forward and backward. The second conduit A2 is not clamped in the second conduit holding assembly 81, and the conduit line can be pulled forward on the second conduit holding assembly 81. This design can ensure that the second conduit above the second conduit jig B2 can be controlled by the second conduit holding assembly 81 to return to the second conduit jig B2, while not affecting the glue adding and assembly operation of the front end of the second conduit, and at the same time, the second conduit horizontal moving assembly 82 can cooperate to press-fit the front part of the second conduit A2 into the first conduit jig B1, so that the first conduit jig B1 and the second conduit jig B2 can stably receive the third assembly C3 as a whole.

[0045] As shown in Figures 4-6 , the K joint positioning mechanism 1 includes a positioning clamp finger assembly 11, a positioning lifting plate 12, a positioning lifting drive source 13, and a positioning translation drive source 14. The positioning lifting drive source 13 is fixed on a rack (not shown in the figure), the fixed end of the positioning translation drive source 14 is installed on the movable end of the positioning lifting drive source 13, the movable end of the positioning translation drive source 14 is towards the first conduit jig B1 and is fixedly connected with the positioning lifting plate 12, the positioning clamp finger assembly 11 is installed on the positioning lifting plate 12 and can be driven to move up and down and forward and backward. The positioning clamp finger assembly 11 includes a positioning clamp finger cylinder 111, a positioning left clamp finger 112, and a positioning right clamp finger 113. The positioning left clamp finger 112 and the positioning right clamp finger 113 are respectively fixed on the left and right movable blocks of the positioning clamp finger cylinder 111, and the positioning left clamp finger 112 and the positioning right clamp finger 113 are controlled to be away from or close to each other by the positioning clamp finger cylinder 111.

[0046] The upper part of the positioning left clamp finger 112 and the positioning right clamp finger 113 is provided with a positioning semicircular groove 114 capable of accommodating the K joint connector A31, and the side of the positioning right clamp finger 113 away from the first conduit jig B1 is provided with a transverse tab 115 extending towards the positioning left clamp finger 112, the transverse tab 115 is located below the positioning semicircular groove 114, and the upper end surface of the transverse tab 115 is flat. The back of the positioning left clamp finger 112 is correspondingly provided with a tab vacancy 116 capable of allowing the transverse tab 115 to move laterally.

[0047] The K joint positioning mechanism 1 provided in the present application can preliminarily position the K joint which is not completely uniform in shape and is inclined to swing, the K joint is lifted by the transverse tab 115 to be in a uniform flat state, the inclined pipe connector A33 is highlighted, the K joint can be positioned and clamped, the success rate and accuracy of the K joint lifting, material taking and overturning mechanism 2 clamping the K joint are improved, and the overall assembly efficiency is improved. If the K joint positioning mechanism 1 is not provided, the K joint lifting, material taking and overturning mechanism 2 can also grasp the K joint, but the clamping result is unstable, which will affect the success rate of subsequent connection and assembly with the conduit.

[0048] The first conduit jig B1 includes a translation base plate B11, a first clamping base plate B12, a second clamping base plate B13, a first conduit clamping block B14, a second conduit clamping block B15 and a third conduit clamping block B16. The front end of the second clamping base plate B13 is fixed below the rear end of the translation base plate B11, and the first clamping base plate B12 is fixed on the translation base plate B11. Multiple first clamping base plates B12 can be fixed on the translation base plate B11 to form a multi-station operation. The front and rear ends of the first clamping base plate B12 are respectively fixed with the first conduit clamping block B14 and the second conduit clamping block B15 for accommodating the front and rear pipe portions of the first conduit A1. The rear end of the second clamping base plate B13 is fixed with the third conduit clamping block B16 for accommodating the front portion of the second conduit A2. The middle part of the second clamping base plate B13 is further provided with a positioning through hole B17 penetrating upward and downward for freely falling of the K joint A3, and the positioning clamp finger assembly 11 of the K joint positioning mechanism 1 passes through the positioning through hole B17 from bottom to top to position and clamp the K joint A3. The positioning through hole B17 can be a large through hole or multiple through holes corresponding to the first clamping base plate B12. The first conduit clamping block B14, the second conduit clamping block B15 and the third conduit clamping block B16 are all provided with conduit clamping grooves B18 with openings upward.

[0049] The third conduit clamping block B16 is located below the first conduit clamping block B14 and the second conduit clamping block B15 and has a certain height difference, and does not need to be on the same plane, so that the K joint A3 can be in a relatively natural falling state, and the inclined pipe connector A33 can be kept in a relatively flat state, and the second conduit A2 can be transported flatly, avoiding forcibly lifting the K joint A3, which is easy to pull the conduit due to the weight of the K joint A3, causing delamination or not corresponding to the detection point.

[0050] The bottom of the translation base plate B11 can also be equipped with pulleys B3 to facilitate movement. The left and right ends of the translation base plate B11 can also be equipped with jig limiting plates to isolate the adjacent first conduit jig.

[0051] In the present application, the first conduit jig B1 can carry the first conduit A1, the first assembly C1, and the second assembly C2, in cooperation with the second conduit jig B2 to carry the third assembly C3.

[0052] Since the second conduit A2 in the present embodiment is a long conduit, the second conduit jig B2 is divided into two parts, respectively clamping the front and rear parts of the second conduit A2. The structure of the second conduit jig B2 is similar to that of the first conduit jig B1, but does not have a second clamping plate B13.

[0053] In the present embodiment, the K joint positioning process is as follows: the positioning finger cylinder 111 first controls the positioning left finger 112 and the positioning right finger 113 to be in a separated open state, the left end of the crosspiece 115 is located at the crosspiece gap 116, the positioning translation drive source 14 drives the positioning finger assembly 11 to move forward so that the positioning finger assembly 11 is located directly below the K joint A3 of the first conduit jig B1, the positioning lifting drive source 13 drives the positioning finger assembly 11 to rise, the joint part A31 of the K joint contacts and is lifted by the crosspiece 115, so that it is in a flat state (at this time, the straight pipe interface A32 and the inclined pipe interface A33 are located in front of the positioning finger assembly 11 and do not contact the positioning left finger 112 and the positioning right finger 113, and the inclined pipe interface A33 is inclined upward), then the positioning finger cylinder 111 controls the positioning left finger 112 and the positioning right finger 113 to approach, the joint part A31 is always placed on the crosspiece 115, until the positioning left finger 112 and the positioning right finger 113 are closed, the joint part A31 is placed between the two positioning semicircular grooves 114, that is, the positioning process of the K joint A3 is completed, then the K joint lifting and taking mechanism 2 clamps the positioned K joint A3, the positioning left finger 112 and the positioning right finger 113 are opened again, the positioning finger assembly 11 is driven to move downward and retreat, and the next round of positioning work is waited.

[0054] As shown in Figure 7 The K joint lifting and taking mechanism 2 is arranged opposite to the K joint positioning mechanism 1, and the first conduit jig B1 is located below the K joint lifting and taking mechanism 2. The K joint lifting and taking mechanism 2 comprises a K joint lifting assembly 3, a K joint turning assembly 4, and a K joint clamping assembly 5. The K joint clamping assembly 5 is arranged in the K joint turning assembly 4, the K joint turning assembly 4 is installed at the lower part of the K joint lifting assembly 3, and the K joint clamping assembly 5 is driven to move up and down and turn by the K joint lifting assembly 3.

[0055] The K joint lifting assembly 3 comprises a lifting fixed plate 31 fixed on the rack by a lifting support. A clamping material lifting driving source 32 is vertically arranged on the lifting fixed plate 31 and fixed on the lifting fixed plate 31. The movable end of the clamping material lifting driving source 32 faces downward and is connected with a lifting top plate 33. A plurality of lifting guide columns 34 are arranged between the lifting fixed plate 31 and the lifting top plate 33 to improve the stability of the lifting top plate 33 in moving up and down. The top of each lifting guide column 34 is connected with a lifting limiting plate 35 to limit the descending height of the lifting top plate 33.

[0056] The K joint turnover assembly 4 is installed at the lower part of the lifting top plate 33 and is driven by the clamping material lifting driving source 32 to move the lifting top plate 33 and the K joint turnover assembly 4 up and down. The K joint turnover assembly 4 comprises a turnover left support plate 41 and a turnover right support plate 42 fixedly installed at the bottom of the lifting top plate 33 on the left and right sides respectively. A turnover plate 43 is rotatably connected between the turnover left support plate 41 and the turnover right support plate 42. The turnover plate 43 is connected with the turnover right support plate 42 through a driving turnover shaft arranged on the turnover right support plate 42. The turnover plate 43 is connected with the turnover left support plate 41 through a driven turnover shaft arranged on the turnover left support plate 41. A cylindrical gear 44 is further connected with the outside of the driving turnover shaft. A gear rack 45 is arranged above the cylindrical gear 44. The gear rack 45 can slide forward and backward along a guide rail 46 installed on the turnover right support plate 42. The K joint turnover assembly 4 further comprises a turnover driving source 47. The movable end of the turnover driving source 47 is connected and fixed with the gear rack 45 through a turnover connecting block 48. The fixed end of the turnover driving source 47 is fixedly connected with the turnover right support plate 42 through a support. The turnover driving source 47 drives the gear rack 45 to move forward and backward, drives the cylindrical gear 44 to rotate, and further drives the driving turnover shaft and the turnover plate 43 to rotate, so as to realize the turnover effect of the turnover plate 43.

[0057] Combining Figures 8-10As shown, the K-joint clamping assembly 5 includes several groups of clamping assemblies 51, and the clamping assembly 51 includes a K-joint clamping drive source 52 and a left clamping finger 53 and a right clamping finger 54. The fixed end of the K-joint clamping drive source 52 is fixedly installed on the flip plate 43, and the K-joint clamping drive source 52 controls the opening and closing of the left clamping finger 53 and the right clamping finger 54. On the opposite side of the left clamping finger 53 and the right clamping finger 54, there are provided inwardly convex clamping finger protrusions 55, and the clamping finger protrusions 55 are provided with a clamping inclined groove 551 and a clamping transverse groove 552, wherein the clamping inclined groove 551 can accommodate the oblique tube interface A33, and the clamping transverse groove 552 can accommodate the straight tube interface A32. The angle between the clamping inclined groove 551 and the clamping transverse groove 552 is 45 degrees (matching the K-connector), and the clamping transverse groove 552 is a through groove with openings at the front and rear ends. The clamping inclined groove 551 and the clamping transverse groove 552 are connected and intersected, and a clamping circular groove 553 is provided at the intersection. The intersection of the clamping inclined groove 551 and the clamping transverse groove 552 is processed into a circular groove, which can effectively expand the accommodating space of the K-connector and avoid material jamming at the intersection of the oblique tube interface A33 and the straight tube interface A32.

[0058] A left duct clamping plate 56 is installed in front of the clamping finger protrusion 55 on the left clamping finger 53 and on the inner side of the left clamping finger 53. The thickness of the left duct clamping plate 56 is less than the thickness of the clamping finger protrusion 55. The front end of the left duct clamping plate 56 extends to the right and is provided with a side T-shaped clamping plate left protrusion 561, a long strip-type clamping plate horizontal bar 562 and a left side protrusion 563 below the clamping plate horizontal bar 562. At the same time, the clamping horizontal groove 552 is also located below the clamping plate horizontal bar 562.

[0059] A right conduit clamping plate 57 is mounted in front of the finger protrusion 55 on the right material clamping finger 54 and on the inside of the right material clamping finger 54. The thickness of the right conduit clamping plate 57 is less than that of the finger protrusion 55. A right conduit clamping plate 571 extends leftward from the front end of the right conduit clamping plate 57. The right conduit clamping plate 571 corresponds to the left side protrusion 563 and is also located below the clamping plate cross bar 562. The clamping plate cross bar 562 can move left and right above the right conduit clamping plate 571. The bottoms of the left material clamping finger 53 and the right material clamping finger 54 are both provided with an inverted L-shaped joint slot 58. The joint slot 58 opens outward, with its vertical side perpendicular to the direction of the material clamping cross slot 552. The joint slot 58 can accommodate the side of the joint portion A31 of the K connector to prevent the material from being stuck.

[0060] by Figure 11 As shown, in order to conveniently illustrate the effect of the clamping assembly 51 clamping the second assembly C2, only the left clamping finger 53 and the K connector A3 equipped with the first conduit A1 are shown. The initial state of the clamping assembly 51 is that the clamping groove 552 is in a horizontal state with the opening facing forward. Figure 9 、 10It can be seen that when the left clamping finger 53 and the right clamping finger 54 are closed, the straight tube interface A32 of the K connector is located between the clamping transverse grooves 552 on both sides, and the front end of the straight tube interface A32 is located between the left clamping plate 56 and the right clamping plate 57 of the catheter; the oblique tube interface A33 is located between the clamping oblique grooves 551 on both sides, and the outer end of the oblique tube interface A33 is exposed outside the left clamping finger 53 and the right clamping finger 54 for the K catheter clamping docking assembly 7 to clamp and assemble the second catheter A2, and the first catheter A1 is clamped under the clamping plate horizontal bar 562, between the left protrusion 563 and the right protrusion 571 of the clamping plate. The clamping plate horizontal bar 562 can press the first catheter A1 underneath it, ensuring that the left protrusion 563 and the right protrusion 571 of the clamping plate can clamp the first catheter A1 and position it in the left and right directions, so that it can be easily put back into the fixture later.

[0061] like Figure 12 As shown in FIG. 1 , it is a schematic diagram of the K-joint positioning, clamping and flipping process. FIG. (1) shows the original natural oblique state of the K-joint; FIG. (2) shows the positioning clamping finger assembly 11 of the K-joint positioning mechanism 1 flattens the K-joint, so that the straight tube interface A32 of the K-joint is in a straight state, which is convenient for the clamping transverse groove 552 of the clamping assembly 51 to position and pick up materials in the front and rear horizontal directions; FIG. (3) shows that the clamping fingers of the clamping assembly 51 continue to correct and position the oblique tube interface A33 in the left and right directions during the clamping process, so as to regularize the K-joint into a unified state; FIG. (4) shows that the clamping assembly 51 is uniformly flipped 45 degrees, so that the oblique tube interface A33 is uniformly horizontally facing backwards, completing the entire positioning, clamping and flipping effect.

[0062] like Figure 14 、 15As shown, the first catheter clamping assembly 6 is installed on the lifting top plate 33 and synchronously lifted with the lifting top plate 33 and the K joint clamping assembly 5. The first catheter clamping assembly 6 comprises a first catheter transverse driving source 61, a catheter clamping left fixed plate 62 and a catheter clamping right fixed plate 63. The fixed end of the first catheter transverse driving source 61 is fixedly connected with the lifting top plate 33. The catheter clamping left fixed plate 62 and the catheter clamping right fixed plate 63 are respectively connected with the movable end of the first catheter transverse driving source 61 through the clamping plate connecting blocks. The first catheter transverse driving source 61 controls the left and right transverse movement of the catheter clamping left fixed plate 62 and the catheter clamping right fixed plate 63. The catheter clamping left fixed plate 62 and the catheter clamping right fixed plate 63 are arranged in staggered positions front and back. A plurality of catheter clamping left clamping fingers 64 are arranged on the catheter clamping left fixed plate 62 in a spaced manner. The catheter clamping left clamping fingers 64 are arranged on the side facing the catheter clamping right fixed plate 63. The catheter clamping right fixed plate 63 is correspondingly provided with a plurality of catheter clamping right clamping fingers 65 arranged in a spaced manner. The catheter clamping left clamping fingers 64 are provided with catheter clamping left protrusions 66 at the right end of the bottom. The catheter clamping right clamping fingers 65 are provided with catheter clamping right protrusions 67 at the left end of the bottom. The catheter clamping left clamping fingers 64 are provided with catheter limiting pieces 68 on the front and back side walls of the middle part and facing right. The catheter clamping right clamping fingers 65 are correspondingly provided with catheter limiting grooves 69 on the front and back side walls of the middle part. The catheter limiting pieces 68 transversely move along the catheter limiting grooves 69, which guarantees the uniform stability of the relative movement of the catheter clamping left and right clamping fingers and further improves the stability of the catheter clamping.

[0063] The middle part of the catheter clamping left clamping fingers 64 and the catheter clamping right clamping fingers 65 is transversely hollowed out to form downwardly opening inverted U-shaped grooves, which can accommodate the first catheter clamping block B14 on the first catheter jig B1.

[0064] The first catheter transverse driving source 61 drives and controls the opening and closing of the catheter clamping left clamping fingers 64 and the catheter clamping right clamping fingers 65. When the catheter clamping left protrusions 66 and the catheter clamping right protrusions 67 are in contact, the upper end of the catheter clamping left protrusions 66, the upper end of the catheter clamping right protrusions 67 and the right side wall of the catheter clamping left clamping fingers 64, the left side wall of the catheter clamping right clamping fingers 65 and the lower end surface of the catheter limiting pieces 68 jointly form a catheter accommodating space (such as the thick line frame shown in the middle part of the figure), which clamps the first catheter A1. Figure 15

[0065] The first catheter clamping assembly 6 cooperates with the K joint clamping assembly 5 to integrally take, place and assemble the second assembly C2, which avoids the damage of the first catheter body caused by pulling up and down in the first catheter jig B1. At the same time, the design of the first catheter clamping assembly 6 reduces the number of clamping finger driving sources. Through the staggered structure design front and back and left and right, only one first catheter transverse driving source 61 is needed to control the clamping of multiple catheters, which can save cost, guarantee the clamping stability and improve the production efficiency.

[0066] As shown in the figure, the first catheter clamping assembly 6 is installed on the lifting top plate 33 and synchronously lifted with the lifting top plate 33 and the K joint clamping assembly 5. The first catheter clamping assembly 6 comprises a first catheter transverse driving source 61, a catheter clamping left fixed plate 62 and a catheter clamping right fixed plate 63. The fixed end of the first catheter transverse driving source 61 is fixedly connected with the lifting top plate 33. The catheter clamping left fixed plate 62 and the catheter clamping right fixed plate 63 are respectively connected with the movable end of the first catheter transverse driving source 61 through the clamping plate connecting blocks. The first catheter transverse driving source 61 controls the left and right transverse movement of the catheter clamping left fixed plate 62 and the catheter clamping right fixed plate 63. The catheter clamping left fixed plate 62 and the catheter clamping right fixed plate 63 are arranged in staggered positions front and back. A plurality of catheter clamping left clamping fingers 64 are arranged on the catheter clamping left fixed plate 62 in a spaced manner. The catheter clamping left clamping fingers 64 are arranged on the side facing the catheter clamping right fixed plate 63. The catheter clamping right fixed plate 63 is correspondingly provided with a plurality of catheter clamping right clamping fingers 65 arranged in a spaced manner. The catheter clamping left clamping fingers 64 are provided with catheter clamping left protrusions 66 at the right end of the bottom. The catheter clamping right clamping fingers 65 are provided with catheter clamping right protrusions 67 at the left end of the bottom. The catheter clamping left clamping fingers 64 are provided with catheter limiting pieces 68 on the front and back side walls of the middle part and facing right. The catheter clamping right clamping fingers 65 are correspondingly provided with catheter limiting grooves 69 on the front and back side walls of the middle part. The catheter limiting pieces 68 transversely move along the catheter limiting grooves 69, which guarantees the uniform stability of the relative movement of the catheter clamping left and right clamping fingers and further improves the stability of the catheter clamping. Figure 13 ​As shown, the K catheter clamping docking assembly 7 is located at the rear end of the K joint clamping assembly 5, and the K catheter clamping docking assembly 7 comprises a docking lifting driving source 71, a docking lifting connecting plate 72, a docking clamping driving source 73, a docking left clamping finger 74 and a docking right clamping finger 75. The fixed end of the docking lifting driving source 71 is fixedly connected with the lifting fixed plate 31 through a docking connecting block 78, and a guide column can be further arranged between the docking connecting block 78 and the docking lifting connecting plate 72, so that the lifting process of the docking lifting connecting plate 72 is more stable. The movable end of the docking lifting driving source 71 is connected with the docking lifting connecting plate 72, and a plurality of docking clamping driving sources 73 are fixedly arranged on the bottom surface of the docking lifting connecting plate 72. The docking clamping driving sources 73 drive the opening and closing of the docking left clamping finger 74 and the docking right clamping finger 75. The opposite surfaces of the docking left clamping finger 74 and the docking right clamping finger 75 are provided with semicircular inclined pipe clamping grooves 76, and the rear ends of the inclined pipe clamping grooves 76 are provided with outwardly expanded catheter guide grooves 77.

[0067] The inclined pipe clamping grooves 76 of the docking left clamping finger 74 and the docking right clamping finger 75 enclose an integral circle to clamp the end of the inclined pipe interface A33. The outwardly expanded guide structure of the catheter guide groove 77 promotes the end of the second catheter A2 to extend into the catheter guide groove 77 and then be inserted into the inclined pipe interface A33. The arrangement of the K catheter clamping docking assembly 7 can guide the connection and assembly of the second catheter A2 and the K joint inclined pipe interface A33, and improve the assembly success rate.

[0068] The working process of the assembly device of the inclined pipe interface of the medical joint and the catheter is as follows: the first catheter jig B1 carrying the second assembly body C2 and the second catheter jig B2 carrying the second catheter A2 are positioned at the same time; the second catheter clamping assembly 81 and the second catheter horizontal moving assembly 82 of the second catheter clamping mechanism 8 clamp the front part of the second catheter A2 on the second catheter jig B2 close to the side of the glue adding mechanism 9; the glue adding mechanism 9 is raised; the second catheter horizontal moving assembly 82 clamps the front end of the second catheter A2 and pulls it forward to extend into the glue adding mechanism 9; the glue adding mechanism 9 adds glue to the front end of the second catheter A2; after the glue adding is completed, the second catheter horizontal moving assembly 82 retreats the second catheter A2; the glue adding mechanism 9 is lowered; and the second catheter A2 waits for assembly; while the second catheter clamping mechanism 8 is working, the positioning clamping finger assembly 11 of the K joint positioning mechanism 1 is raised; the positioning left clamping finger 112 and the positioning right clamping finger 113 pass through the positioning through hole B17 of the first catheter jig B1 from bottom to top to lift the K joint, so that the straight pipe interface A32 of the K joint is in a flat state; then the clamping assembly 51 of the K joint clamping assembly 5 clamps the front part of the K joint; the outer end of the inclined pipe interface A33 is exposed to the outside; the positioning clamping finger assembly 11 is lowered; at the same time, the first catheter clamping assembly 6 clamps the front part of the first catheter A1 on the first catheter jig B1; the K joint lifting assembly 3 controls the K joint turnover assembly 4, the K joint clamping assembly 5 and the first catheter clamping assembly 6 to be raised at the same time; then the K joint turnover assembly 4 controls the turnover plate 43 to turn over to drive the clamping assembly 51 to turn over by 45 degrees, so that the inclined pipe interfaces A33 are uniformly and horizontally turned back; the K catheter clamping butt joint assembly 7 controls the butt joint left clamping finger 74 and the butt joint right clamping finger 75 to be lowered and clamp the outer end of the inclined pipe interface A33 exposed to the outside of the clamping assembly 51; the second catheter horizontal moving assembly 82 controls the front end of the second catheter A2 to move forward; the front end of the second catheter A2 extends into the catheter guide groove 77 and then inserts into the inclined pipe interface A33 in the inclined pipe clamping groove 76; after the second catheter A2 and the inclined pipe interface A33 of the K joint are assembled to form the third assembly body C3, the K catheter clamping butt joint assembly 7 controls the butt joint left clamping finger 74 and the butt joint right clamping finger 75 to be opened and raised; the second catheter clamping assembly 81, the second catheter horizontal moving assembly 82 and the clamping assembly 51 and the first catheter clamping assembly 6 are controlled to be lowered at the same time; the first catheter jig B1 and the second catheter jig B2 jointly carry the third assembly body C3. Then the second catheter clamping assembly 81, the second catheter horizontal moving assembly 82 and the clamping assembly 51 and the first catheter clamping assembly 6 are raised back to the original position to wait for the next assembly.

[0069] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An assembly device for an oblique tube interface of a medical connector and a catheter, characterized in that: The invention comprises a K-joint positioning mechanism (1), a K-joint lifting and retrieving material turning mechanism (2), a second conduit clamping mechanism (8) and a glue adding mechanism (9), wherein a first conduit fixture (B1) carrying a second assembly (C2) and a second conduit fixture (B2) carrying a second conduit (A2) are arranged on both sides of the glue adding mechanism (9), the second assembly (C2) comprises a first conduit (A1) and a K-joint (A3), the K-joint (A3) comprises a joint portion (A31), a straight pipe interface (A32), and an oblique pipe interface (A33), wherein the joint portion (A31) is coaxially connected to the straight pipe interface (A32), the oblique pipe interface (A33) is connected to the middle of the straight pipe interface (A32), and the two have a certain angle, wherein the straight pipe interface (A32) and the first conduit (A1) are in a connected state, and the oblique pipe interface (A33) and the joint portion (A31) are in a connected state. 1) are all oriented toward the second catheter jig (B2); the K-joint positioning mechanism (1) is located below the first catheter jig (B1) and faces the oblique tube interface (A33) to position and clamp the K-joint (A3); the K-joint lifting and retrieving flipping mechanism (2) is located above the first catheter jig (B1) to clamp and flip the K-joint (A3) to unify the orientation of the oblique tube interface (A33); the second catheter clamping mechanism (8) is located above the second catheter jig (B2) to clamp the second catheter (A2); the second catheter clamping mechanism (8) clamps the second catheter (A2) and completes the catheter glue filling operation in the glue filling mechanism (9), and then assembles the end of the second catheter (A2) after glue filling with the oblique tube interface (A33) of the K-joint (A3) on the K-joint lifting and retrieving flipping mechanism (2) to form a third assembly (C3); The K-joint lifting and retrieving and turning mechanism (2) comprises a K-joint lifting assembly (3), a K-joint turning assembly (4), and a K-joint clamping assembly (5), wherein the K-joint clamping assembly (5) is installed in the K-joint turning assembly (4), and the K-joint turning assembly (4) is installed at the lower part of the K-joint lifting assembly (3), thereby driving the K-joint clamping assembly (5) to move up and down and turn over; The K-joint clamping assembly (5) includes a plurality of clamping assemblies (51), the clamping assembly (51) including a K-joint clamping drive source (52) and a left clamping finger (53) and a right clamping finger (54). The fixed end of the K-joint clamping drive source (52) is fixedly mounted on the K-joint flip assembly (4). The K-joint clamping drive source (52) controls the opening and closing of the left clamping finger (53) and the right clamping finger (54). The left clamping finger (53) and the right clamping finger (54) are mutually connected. On one side of each pair of fingers, an inwardly convex clamping finger protrusion (55) is provided. A material clamping chute (551) and a material clamping transverse groove (552) are provided on the clamping finger protrusion (55). The material clamping chute (551) can accommodate an oblique tube interface (A33), and the material clamping transverse groove (552) can accommodate a straight tube interface (A32). The material clamping transverse groove (552) is a through groove with front and rear ends open. The material clamping chute (551) and the material clamping transverse groove (552) are connected and intersected, and a material clamping circular groove (553) is provided at the intersection.

2. The assembly device for the oblique tube interface of the medical connector and the catheter according to claim 1, characterized in that: The K-joint positioning mechanism (1) comprises a positioning clamping finger assembly (11), a positioning lifting plate (12), a positioning lifting drive source (13), and a positioning translation drive source (14), wherein the positioning lifting drive source (13) is fixed on a frame, a fixed end of the positioning translation drive source (14) is mounted on a movable end of the positioning lifting drive source (13), the movable end of the positioning translation drive source (14) faces the first catheter fixture (B1) and is fixedly connected to the positioning lifting plate (12), the positioning clamping finger assembly (11) is mounted on the positioning lifting plate (12), and the positioning clamping finger assembly (11) can be driven to move up and down and forward and backward; The positioning clamping finger assembly (11) comprises a positioning clamping finger cylinder (111), a positioning left clamping finger (112) and a positioning right clamping finger (113). The positioning left clamping finger (112) and the positioning right clamping finger (113) are respectively fixed on the left and right movable blocks of the positioning clamping finger cylinder (111). The positioning clamping finger cylinder (111) controls the positioning left clamping finger (112) and the positioning right clamping finger (113) to be apart or close to each other. The upper parts of the positioning left clamping finger (112) and the positioning right clamping finger (113) are relatively provided with a positioning semicircular groove (114) that can accommodate the K-connector joint (A31); the side of the positioning right clamping finger (113) facing away from the first catheter fixture (B1) is provided with a horizontal lap piece (115) extending toward the positioning left clamping finger (112); the horizontal lap piece (115) is located below the positioning semicircular groove (114); and the upper end surface of the horizontal lap piece (115) is straight.

3. The assembly device for the oblique tube interface of the medical connector and the catheter according to claim 1, characterized in that: A left clamping plate (56) of a conduit is installed in front of the upper finger protrusion (55) of the left clamping finger (53) of the material clamping and on the inner side of the left clamping finger (53). The thickness of the left clamping plate (56) of the conduit is less than the thickness of the finger protrusion (55). The front end of the left clamping plate (56) of the conduit is extended to the right and provided with a side T-shaped left clamping plate protrusion (561), a long strip-shaped clamping plate horizontal bar (562) and a left protrusion (563) below the clamping plate horizontal bar (562). At the same time, the clamping horizontal groove (552) is also located below the clamping plate horizontal bar (562); A right clamping plate (57) of the conduit is installed in front of the clamping finger protrusion (55) on the right clamping finger (54) of the material clamping and on the inner side of the right clamping finger (54). The thickness of the right clamping plate (57) of the conduit is less than the thickness of the clamping finger protrusion (55). The front end of the right clamping plate (57) of the conduit is extended to the left and provided with a right clamping plate protrusion (571); the right clamping plate protrusion (571) corresponds to the left protrusion (563) and is also located below the clamping plate horizontal bar (562). The clamping plate horizontal bar (562) can move left and right above the right clamping plate protrusion (571).

4. The assembly device for the oblique tube interface of the medical connector and the catheter according to claim 3, characterized in that: The bottoms of the left clamping finger (53) and the right clamping finger (54) are both provided with an inverted L-shaped joint slot (58), the joint slot (58) opening outward, the vertical side of which is perpendicular to the direction of the clamping transverse groove (552), and the joint slot (58) can accommodate the side of the joint portion (A31) of the K joint.

5. The assembly device for the oblique tube interface of a medical connector and a catheter according to any one of claims 1 to 4, characterized in that: The K-joint lifting assembly (3) comprises a lifting fixed plate (31), which is fixed to a frame via a lifting bracket; a material clamping lifting drive source (32) is vertically passed through the lifting fixed plate (31), the material clamping lifting drive source (32) is passed through the lifting fixed plate (31), and the movable end of the material clamping lifting drive source (32) faces downward and is connected to a lifting top plate (33); a plurality of lifting guide columns (34) are passed between the lifting fixed plate (31) and the lifting top plate (33), and a lifting limit plate (35) is connected to the top of the lifting guide column (34) to limit the descending height of the lifting top plate (33).

6. The assembly device for the oblique tube interface of the medical connector and the catheter according to claim 5, characterized in that: The K-joint flip assembly (4) is installed at the lower part of the lifting top plate (33), and the material clamping lifting driving source (32) drives the lifting top plate (33) and the K-joint flip assembly (4) to move up and down; the K-joint flip assembly (4) includes a flip left support plate (41) and a flip right support plate (42) respectively fixedly installed on the left and right sides of the bottom of the lifting top plate (33), a flip plate (43) is rotatably connected between the flip left support plate (41) and the flip right support plate (42), the flip plate (43) and the flip right support plate (42) are connected by an active flip shaft passing through the flip right support plate (42), and the flip plate (43) and the flip left support plate (41) are connected by a driven flip shaft passing through the flip left support plate (41). The rotating shaft is connected; the outer side of the active flip shaft is also connected to a cylindrical gear (44), and a rack (45) is engaged with the upper part of the cylindrical gear (44). The rack (45) can slide back and forth along the guide rail (46) installed on the flip right support plate (42). The K joint flip assembly (4) also includes a flip driving source (47), the movable end of which is fixedly connected to the rack (45) through a flip connecting block (48), and the fixed end of the flip driving source (47) is fixedly connected to the flip right support plate (42) through a bracket; the flip driving source (47) drives the rack (45) to move back and forth, drives the cylindrical gear (44) to rotate, and then drives the active flip shaft and the flip plate (43) to rotate, thereby achieving the flip effect of the flip plate (43).

7. The assembly device for the oblique tube interface of a medical connector and a catheter according to claim 5, characterized in that: The assembly device further comprises a K-tube clamping docking assembly (7), which is located at the rear end of the K-joint clamping assembly (5). The K-tube clamping docking assembly (7) comprises a docking lifting drive source (71), a docking lifting connecting plate (72), a docking clamping drive source (73), and a docking left clamping finger (74) and a docking right clamping finger (75). The fixed end of the docking lifting drive source (71) is fixedly connected to the lifting fixed plate (31), and the movable end of the docking lifting drive source (71) is connected to the docking lifting connecting plate (72). A plurality of docking clamping drive sources (73) are fixed to the bottom surface of the docking lifting connecting plate (72). The docking clamping drive sources (73) drive the opening and closing of the docking left clamping finger (74) and the docking right clamping finger (75); the opposite surfaces of the docking left clamping finger (74) and the docking right clamping finger (75) are provided with a semicircular oblique tube clamping groove (76), and the rear end of the oblique tube clamping groove (76) is provided with an outwardly expanded tube guide groove (77).

8. The assembly device for the oblique tube interface of a medical connector and a catheter according to claim 5, characterized in that: The assembly device further comprises a first conduit clamping assembly (6), which is mounted on the lifting top plate (33) and rises and falls synchronously with the lifting top plate (33) and the K-joint clamping assembly (5); the first conduit clamping assembly (6) comprises a first conduit transverse driving source (61) and a conduit clamping left fixed plate (62) and a conduit clamping right fixed plate (63); the fixed end of the first conduit transverse driving source (61) is fixedly connected to the lifting top plate (33), and the conduit clamping left fixed plate (62) and the conduit clamping right fixed plate (63) are respectively connected by clamping plates. The connecting block is connected to the movable end of the first catheter transverse movement driving source (61), and the first catheter transverse movement driving source (61) controls the catheter clamping left fixed plate (62) and the catheter clamping right fixed plate (63) to move horizontally left and right; the catheter clamping left fixed plate (62) and the catheter clamping right fixed plate (63) are arranged in a front-to-back staggered manner, and the catheter clamping left fixed plate (62) is connected to a plurality of catheter clamping left clamping fingers (64) arranged at intervals, and the catheter clamping left clamping fingers (64) are arranged on a side facing the catheter clamping right fixed plate (63), and the catheter clamping right fixed plate (63) is provided with a catheter clamping right clamping finger (65) arranged at intervals, the right end of the bottom of the catheter clamping left clamping finger (64) is provided with a catheter clamping left protrusion (66), the left end of the bottom of the catheter clamping right clamping finger (65) is provided with a catheter clamping right protrusion (67), the middle front and rear side walls of the catheter clamping left clamping finger (64) are provided with a right-facing catheter limiting piece (68), the middle front and rear side walls of the catheter clamping right clamping finger (65) are provided with a concave catheter limiting groove (69), the catheter limiting piece (68) is provided along the catheter limiting piece The slot (69) moves transversely; the first catheter transverse movement driving source (61) drives and controls the catheter clamping left clamping finger (64) and the catheter clamping right clamping finger (65) to open and close. When the catheter clamping left protrusion (66) and the catheter clamping right protrusion (67) come into contact, the upper end of the catheter clamping left protrusion (66), the upper end of the catheter clamping right protrusion (67) and the right side wall of the catheter clamping left clamping finger (64), the left side wall of the catheter clamping right clamping finger (65), and the lower end surface of the catheter limiting piece (68) enclose a vacant space of the catheter, thereby clamping the first catheter (A1).

9. The assembly device for the oblique tube interface of a medical connector and a catheter according to claim 2, characterized in that: The first catheter fixture (B1) includes a translation base plate (B11), a first clamping base plate (B12), a second clamping base plate (B13), a first catheter clamping block (B14), a second catheter clamping block (B15), and a third catheter clamping block (B16). The front end of the second clamping base plate (B13) is fixed below the rear end of the translation base plate (B11). The first clamping base plate (B12) is fixed on the translation base plate (B11). Multiple first clamping base plates (B12) can be fixed on the translation base plate (B11) to form a multi-station operation. The front and rear ends of the first clamping base plate (B12) are respectively fixed to the first catheter clamping block (B14) and the second catheter clamping block (B15). The clamping block (B15) is used to accommodate the front and rear tube parts of the first catheter (A1); the third catheter clamping block (B16) is fixed on the rear end of the second clamping base plate (B13) to accommodate the front part of the second catheter (A2); the middle part of the second clamping base plate (B13) is also provided with a positioning opening (B17) that passes through from top to bottom, allowing the K connector (A3) to hang freely, and at the same time allowing the positioning clamping finger assembly (11) of the K connector positioning mechanism (1) to pass through from bottom to top to position and clamp the K connector (A3); the first catheter clamping block (B14), the second catheter clamping block (B15), and the third catheter clamping block (B16) are all provided with a catheter clamping groove (B18) with an opening facing upward.

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