Assembling device for artificial heart blood entering tube component

Abstract

The invention relates to the technical field of assembly of artificial heart blood-entering tube components, and discloses an assembly device of an artificial heart blood-entering tube component. The lower driving part is fixedly mounted on the supporting structure; the fixing seat is fixedly installed on the lower driving piece, the fixing seat is provided with a tightening mechanism used for tightening a clamping jaw of the locking nut, and the driving end of the lower driving piece is connected with the tightening mechanism and drives the tightening mechanism to act; the upper driving part is fixedly installed on the supporting structure, the driving end of the upper driving part is fixedly connected with a tool connector, and the tool connector is detachably and fixedly connected with a bulging tool head used for bulging a clamping jaw of the locking nut or a press-fitting tool head used for press-fitting the fixing ring to the outer side of the locking nut. According to the invention, the connection reliability of the blood entering tube part can be improved, the safety risks of looseness and leakage in clinical use and the dependence on the skill proficiency of operators are reduced, the large-scale and high-quality production requirements are met, and the product yield is stabilized.

Description

Technical Field

[0001] This invention relates to the field of artificial heart blood vessel assembly technology, and more specifically to an assembly device for artificial heart blood vessel components. Background Technology

[0002] As a vital treatment for saving the lives of patients with end-stage heart failure, the reliability, sealing, and durability of the core functional component—the blood vessel insertion component—are of paramount importance for artificial hearts. The blood vessel insertion component is typically assembled from precision components such as a bend, a locking nut, and a retaining ring. The locking nut is often designed with a multi-claw structure, using elastic deformation to achieve a tight engagement and fixation with the bend, which is a key element ensuring the stability of the blood vessel insertion connection.

[0003] Currently, the assembly process of this type of multi-claw locking nut mostly relies on manual operation or semi-automatic fixtures. Operators need to use special tools to expand (bulking) and tighten (shrinking) the claws one by one or in batches, and then manually insert the bent tube and retaining ring. This traditional assembly method has the following obvious drawbacks: First: Assembly consistency is difficult to guarantee. Due to the reliance on manual or semi-automatic clamps to operate one by one and in batches, it is impossible to achieve uniform and synchronous deformation of multiple jaws. This directly leads to uneven distribution of locking force among the jaws, which not only reduces the sealing performance of the blood vessel components, but also causes risks such as loosening and leakage during clinical use, directly threatening the patient's life safety. Second: Low production efficiency and insufficient adaptability. Traditional processes require multiple independent steps such as bulging of the clamps, manual installation of bent pipes, tightening of the clamps, and installation of the fixing rings. The process is cumbersome and time-consuming. The quality of operation is highly dependent on the skill proficiency and practical experience of the operators, making it difficult to meet the needs of large-scale, high-quality production. Third: The product yield fluctuates greatly. The existing assembly method lacks precise stroke control and reliable limiting mechanism. During operation, excessive expansion can easily occur, causing plastic deformation, fatigue fracture, or insufficient tightening, which can prevent the effective fixing of the claw and the bend, directly resulting in product scrap. Summary of the Invention

[0004] The purpose of this invention is to provide an assembly device for an artificial heart vascular component, which improves assembly efficiency and quality stability, and meets the needs of large-scale production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An assembly apparatus for an artificial heart vascular access component, comprising: Support structure; The lower drive component is fixedly installed on the support structure; The fixed base is fixedly installed on the lower drive component. The fixed base is equipped with a tightening mechanism for tightening the pawl of the locking nut. The drive end of the lower drive component is connected to the tightening mechanism and drives its operation. The upper drive component is fixedly installed on the support structure. The drive end of the upper drive component is fixedly connected to the tooling joint. The tooling joint is detachably fixedly connected to an expansion tooling head for expanding the claws of the lock nut or a pressing tooling head for pressing the retaining ring to the outside of the lock nut.

[0006] In the above technical solution, the tightening mechanism is driven by the lower drive component to achieve synchronous tightening of the jaws, and the upper drive component completes the jaw expansion and fixing ring pressing by switching the expansion tooling head and the pressing tooling head. This avoids the subjective error of manual step-by-step operation, ensures the uniform and synchronous deformation of multiple jaws, makes the locking force distribution balanced, improves the connection reliability of the blood vessel components, reduces the safety risks of loosening and leakage in clinical use, and reduces the dependence on the skill level of operators. It is suitable for the needs of large-scale, high-quality production and stabilizes the product yield.

[0007] Preferably, the fixing base includes: The base plate is fixedly connected to the lower drive component and has a clearance hole for the drive end of the lower drive component to pass through. The base is fixedly installed on the base plate. The upper end of the base has a protruding positioning seat, and the positioning seat has a positioning groove that cooperates with the locking nut. The top plate is fixedly installed on the base, and a through hole is made in the top plate directly opposite the positioning seat.

[0008] Preferably, the tightening mechanism includes: The push plate has a slot at the lower end of the base. The slot and the base plate enclose a driving cavity. The push plate is located in the driving cavity. The driving end of the lower driving component passes through a clearance hole and is fixedly connected to the push plate. The number of push rods is the same as the number of claws of the locking nut and they are fixed radially to the upper end of the push plate. The base has a through groove for the push rods to pass through. The inner side of the upper end of the push rod has a push rod bevel. The top plate has a clearance groove opposite the upper end of the push rod. The number of sliders is the same as that of push rods and they are set one-to-one with push rods. The upper end of the base has a groove corresponding to the slider. The groove and the top plate enclose a sliding cavity. The slider slides into the sliding cavity. The outer end of the slider has a slider slope that slides into the push rod slope. The elastic element has two ends that abut against the slider and the positioning seat, respectively.

[0009] Preferably, it further includes a positioning block fixedly installed in the positioning seat, the positioning block and the inner side wall of the positioning seat forming a positioning ring for positioning the locking nut.

[0010] Preferably, the push plate is fixedly mounted with an upper limit stop for limiting the extreme upward position of the push plate.

[0011] Preferably, the tooling connector has a socket, and the mounting ends of the expansion tooling head and the pressing tooling head are provided with plugs that mate with the socket. The tooling connector has a magnet hole that communicates with the socket, and a magnet is fixedly installed in the magnet hole. The inner side of the magnet is flush with the inner sidewall of the socket.

[0012] Preferably, the support structure is fixed to the tooling joint with a limiting seat, and the limiting seat is fixed with a lower limiting member for limiting the downward extreme position of the upper drive member.

[0013] Preferably, the bulging end of the bulging tool head is truncated cone-shaped.

[0014] Preferably, a clearance opening is provided at the lower end of the pressing tool head, and a pressing platform protrudes from the inner side wall of the pressing tool head.

[0015] Preferably, the upper and lower driving components are cylinders, hydraulic cylinders, or electric push rods. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the bend, retaining ring, and locking nut; Figure 2 This is a schematic diagram showing the assembled blood vessel insertion components; Figure 3 This is a schematic diagram of the structure of the tooling connector for installing the press-fit tooling head of the present invention; Figure 4 This is an assembly diagram of the upper drive component, tooling joint, and press-fitting tooling head; Figure 5 This is a schematic diagram of the press-fitting tool head; Figure 6 This is a schematic diagram of the tooling joint structure; Figure 7 This is a schematic diagram of the structure for installing the bulging tool head on the tooling connector of the present invention; Figure 8 This is an assembly diagram of the upper drive component, tooling joint, and bulging tooling head; Figure 9 This is a schematic diagram of the structure of the bulging tool head; Figure 10 This is an assembly diagram of the lower drive component, fixed base, tightening mechanism, and locking nut; Figure 11 This is an assembly diagram of the lower drive unit, fixed base, tightening mechanism and locking nut, where the top cover is not shown, and one of the sliders is in the state of compressing the jaws; Figure 12 This is a schematic diagram of the structure of the fixed base; Figure 13 for Figure 11 The left view; Figure 14 for Figure 13 A sectional view of AA; Figure 15 This is a schematic diagram showing the state in which the push rod pushes the slider into contact with the chuck.

[0017] The components include: support structure 1, limit seat 11, lower limit component 12, lower drive component 2, fixed seat 3, base plate 31, base 32, slot 321, through slot 322, sliding groove 323, positioning seat 33, positioning block 331, positioning ring 332, top plate 34, clearance groove 341, upper drive component 4, tooling connector 5, insertion hole 51, magnet 52, bulging tooling head 6, pressing tooling head 7, clearance opening 71, pressing table 72, push plate 81, upper limit component 811, push rod 82, push rod inclined surface 821, slider 83, slider inclined surface 831, elastic component 84, manual valve 9, locking nut 100, claw 110, fixed ring 120, bend 130, hook 140, outer edge 150, recess 160, and retaining ring 170. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] like Figure 1-15 An assembly device for an artificial heart vascular access component, comprising: Support structure 1; The lower drive component 2 is fixedly installed on the support structure 1; The fixed base 3 is fixedly installed on the lower drive member 2. The fixed base 3 is provided with a tightening mechanism for tightening the claw 110 of the locking nut 100. The drive end of the lower drive member 2 is connected to the tightening mechanism and drives its operation. The upper drive component 4 is fixedly installed on the support structure 1. The drive end of the upper drive component 4 is fixedly connected to the tooling connector 5. The tooling connector 5 is detachably fixedly connected to either an expansion tooling head 6 for expanding the claw 110 of the locking nut 100 or a pressing tooling head 7 for pressing the retaining ring 120 onto the outside of the locking nut 100.

[0020] In the above technical solution, the lower drive component 2 drives the tightening mechanism to achieve synchronous tightening of the jaws 110. The upper drive component 4 completes the expansion of the jaws 110 and the pressing of the fixing ring 120 by switching the expansion tool head 6 and the pressing tool head 7. This avoids the subjective error of manual step-by-step operation, ensures the uniform and synchronous deformation of multiple jaws 110, makes the locking force distribution balanced, improves the connection reliability of the blood vessel components, reduces the safety risks of loosening and leakage in clinical use, and reduces the dependence on the skill level of operators. It is suitable for large-scale, high-quality production needs and stabilizes the product yield.

[0021] It should be noted that the support structure 1 serves as the installation base for the assembly device, and its overall structure provides a stable assembly carrier for core components such as the upper drive component 4 and the lower drive component 2.

[0022] Specifically, the upper inner side of the pawl 110 of the locking nut 100 is provided with a hook 140, and the end of the bent tube 130 is provided with an outer edge 150. During assembly, the jaw 110 is first radially expanded using the expanding tool head 6. Then, the end of the bent tube 130 is placed into the jaw 110, and the tightening mechanism is used to radially tighten the jaw 110, so that the hook 140 engages with the outer edge 150, achieving initial locking of the locking nut 100 and the bent tube 130. Afterward, the operator places the fixing ring 120 on the bent tube 130 and outside the jaw 110. The upper outer side of the locking nut 100 jaw 110 has a recess 160, and the inner side wall of the fixing ring 120 has a corresponding protruding retaining ring 170. The pressing tool head 7 presses down the fixing ring 120, causing it to move down along the outside of the jaw 110 until the retaining ring 170 engages with the recess 160, thereby fixing the locking nut 100 to the end of the bent tube 130, completing the final locking of the component. Since locking nuts 100 and retaining rings 120 need to be installed at both ends of the bend 130, in actual operation, the retaining rings 120 can be pre-fitted onto the bend 130 first, and then the above-mentioned expansion, tightening and pressing processes can be performed in sequence to ensure the smooth assembly of both ends.

[0023] Furthermore, the fixing base 3 includes: The base plate 31 is fixedly connected to the lower drive member 2 and has a clearance hole for the drive end of the lower drive member 2 to pass through. The base 32 is fixedly installed on the base plate 31. The upper end of the base 32 has a protruding positioning seat 33, and the positioning seat 33 has a positioning groove that cooperates with the locking nut 100. The top plate 34 is fixedly installed on the base 32, and the top plate 34 has a through hole facing the positioning seat 33.

[0024] In the above technical solution, the clearance hole in the base plate 31 provides movement space for the driving end of the lower drive component 2, the positioning groove in the base 32 positions the locking nut 100, and the through hole in the top plate 34 provides a clearance passage for the upper drive component 4 to drive the tooling head downwards and for the placement of the locking nut 100, the bent pipe 130, and the fixing ring 120. Specifically, the positioning groove positions the locking nut 100 to ensure accurate correspondence between the chuck 110 and the tightening mechanism and the tooling head, thus improving assembly consistency.

[0025] It should be noted that the positioning seat 33, as the core positioning structure of the locking nut 100, can be flexibly connected to the base 32 to meet production needs, specifically adopting either an integrated molding or a separate connection design. The integrated molding design can be achieved through casting, CNC machining, etc., ensuring the structural integrity and dimensional accuracy of the positioning seat 33 and the base 32, reducing assembly errors, and improving positioning stability. The separate design allows the positioning seat 33 and base 32 to be machined separately and then connected by bolts, welding, etc., facilitating the individual machining of suitable positioning seats 33 for different specifications of locking nuts 100, reducing mold costs and machining difficulty, and enhancing the versatility and adaptability of tooling. Both connection methods ensure the positioning of the locking nut 100 by the positioning seat 33, providing a reliable structural foundation for the subsequent expansion, tightening, and pressing operations of the jaw 110 and the retaining ring 120.

[0026] It should also be noted that the base plate 31 and the base 32, as well as the base 32 and the top plate 34, can be connected by bolts. This detachable connection method facilitates the independent processing, maintenance and replacement of each component. When the base 32 or the top plate 34 is worn or damaged, it is not necessary to scrap the whole thing. Only the corresponding component needs to be replaced, which effectively reduces the cost of use and maintenance.

[0027] Furthermore, the tightening agencies include: Push plate 81, base 32 has a slot 321 at the lower end, the slot 321 and the base plate 31 form a driving cavity, push plate 81 is located in the driving cavity, the driving end of the lower driving member 2 passes through the clearance hole and is fixedly connected to push plate 81. The number of push rods 82 is the same as the number of claws 110 of the locking nut 100 and they are fixed radially to the upper end of the push plate 81. The base 32 has a through groove 322 for the push rods 82 to pass through. The upper inner side of the push rod 82 has a push rod 82 inclined surface. The top plate 34 has a clearance groove 341 facing the upper end of the push rod 82. The number of sliders 83 is the same as that of push rods 82 and they are set one-to-one with push rods 82. The upper end of the base 32 is provided with a sliding groove 323 corresponding to the slider 83. The sliding groove 323 and the top plate 34 enclose a sliding cavity. The slider 83 slides into the sliding cavity. The outer end of the slider 83 is provided with a slider 83 inclined surface that slides into the inclined surface of push rod 82. The elastic element 84 has its two ends abutting against the slider 83 and the positioning seat 33, respectively.

[0028] In the above technical solution, the axial driving force of the lower drive member 2 is converted into the radial synchronous movement of the slider 83 through the tightening mechanism, thereby tightening the jaws 110 of the locking nut 100. The push rod 82 and the inclined surface of the slider 83 cooperate to achieve uniform centripetal tightening of multiple sliders 83, ensuring that each jaw 110 tightens synchronously and the locking force is uniform. The elastic member 84 enables the slider 83 to automatically reset, simplifying the operation process.

[0029] Specifically, after the lower drive component 2 is started, its drive end pushes the push plate 81 in the drive cavity upward along the axial direction. The push plate 81 drives the push rods 82, which are radially distributed at the upper end, to move upward synchronously. After the push rods 82 pass through the slot 322 of the base 32, the inclined surface of the push rod 82 on the inner side of its upper end slides into contact with the inclined surface of the slider 83 at the outer end of the slider 83, converting the axial driving force into a radial force. This causes the slider 83 to slide synchronously towards the center along the sliding cavity formed by the slide groove 323 and the top plate 34, thereby applying a uniform tightening force to the locking nut 100 claw 110 on the positioning seat 33. When the tightening operation is completed, the drive end of the lower drive component 2 reverses and resets. The push plate 81 and the push rod 82 move downward accordingly. Under the reset elastic force of the elastic members 84 at both ends, the slider 83 slides radially outward along the sliding cavity, returning to its initial position, and preparing for the next assembly operation.

[0030] It should also be noted that the elastic element 84 can be a component with elastic reset function, such as a return spring or an elastic rubber column. During installation, a blind hole can be opened on the side of the slider 83 facing the positioning seat 33. One end of the elastic element 84 is embedded in the blind hole to achieve axial positioning, and the other end faces the positioning seat 33 and abuts against the outer wall of the positioning seat 33. After the tightening operation is completed, the lower drive component 2 drives the push plate 81 and the push rod 82 to move down and reset. The force between the inclined surface of the push rod 82 and the inclined surface of the slider 83 is released. Under its own elastic force, the elastic element 84 pushes the slider 83 to slide radially outward along the sliding cavity, thereby reliably driving the slider 83 back to the initial position and ensuring the smooth progress of subsequent assembly operations.

[0031] Furthermore, it also includes a positioning block 331 fixedly installed in the positioning seat 33, and the positioning block 331 and the inner side wall of the positioning seat 33 enclose a positioning ring 332 for positioning the locking nut 100.

[0032] In the above technical solution, the positioning ring 332 formed by the positioning block 331 and the inner wall of the positioning seat 33 further improves the positioning accuracy of the locking nut 100, ensuring that the locking nut 100 always maintains the preset position during the assembly process, so that the expansion tooling head 6 can accurately act on the jaw 110 and the slider 83 can accurately fit with the jaw 110, ensuring the uniformity of the deformation of the jaw 110 and the synchronicity of the tightening action, improving production efficiency, reducing product scrap due to positioning errors, and further stabilizing the yield rate.

[0033] It should be noted that a stepped hole is provided at the upper end of the positioning seat 33, and the positioning block 331 has a stepped part that matches the stepped hole. The two can be fixedly assembled by interference fit or bolt connection. After the positioning block 331 is installed in place, its upper outer wall and the inner wall of the stepped hole of the positioning seat 33 form a positioning ring 332. The inner diameter of the positioning ring 332 matches the outer diameter of the locking nut 100, thereby achieving precise radial positioning of the locking nut 100, ensuring the stability of the locking nut 100 during assembly, and improving the alignment accuracy of the expansion and tightening of the claw 110.

[0034] Furthermore, the push plate 81 is fixedly mounted upwards with an upper limit stop 811 for limiting the upper limit position of the push plate 81.

[0035] In the above technical solution, the upper limit member 811 on the push plate 81 limits the upper limit position of the push plate 81. By limiting the upper distance of the push plate 81, the radial movement stroke of the slider 83 is indirectly controlled, so as to avoid plastic deformation, fatigue fracture caused by excessive tightening of the pawl 110 due to excessive driving force of the lower drive member 2, or structural damage caused by excessive displacement of the slider 83, thus ensuring the structural integrity and locking reliability of the locking nut 100.

[0036] Furthermore, the tooling connector 5 has a socket 51, and the mounting ends of the expansion tooling head 6 and the pressing tooling head 7 are provided with plugs that can be inserted into the socket 51. The tooling connector 5 has a magnet hole that communicates with the socket 51, and a magnet 52 is fixedly installed in the magnet hole. The inner side of the magnet 52 is flush with the inner sidewall of the socket 51.

[0037] In the above technical solution, the insertion hole 51 of the tooling connector 5 is engaged with the plug of the tooling head, and combined with the attraction and fixation of the magnet 52, it enables quick and detachable switching between the expansion tooling head 6 and the pressing tooling head 7. The attraction of the magnet 52 ensures the stability of the tooling head during operation, reduces process changeover time, improves production efficiency, and allows tooling head replacement to be completed without complicated tools, reducing the difficulty of operation and dependence on the skills of operators, and adapting to the needs of large-scale production.

[0038] It should be noted that both the expansion tool head 6 and the pressing tool head 7 are made of ferromagnetic metal materials (such as carbon steel, alloy steel, etc.), giving them good magnetic conductivity. When the plug of the tool head is inserted into the socket 51 of the tool connector 5, it can generate a stable magnetic attraction with the magnet 52 in the magnet hole, thereby achieving rapid adsorption and fixation between the tool head and the tool connector 5, ensuring reliable connection of the tool head without loosening during operation.

[0039] Furthermore, the support structure 1 is fixed to the tooling joint 5 with a limit seat 11, and a lower limit member 12 is fixed on the limit seat 11 to limit the downward limit position of the upper drive member 4.

[0040] In the above technical solution, the limiting seat 11 and the lower limiting member 12 on the support structure 1 limit the downward limit position of the upper driving member 4. The lower limiting member 12 controls the downward stroke of the upper driving member 4 to ensure that the expansion amount of the expansion tooling head 6 on the chuck 110 is accurately controlled within the preset range, avoiding excessive expansion that causes plastic deformation and fatigue fracture of the chuck 110, and ensuring that the pressing tooling head 7 presses the fixing ring 120 to the preset position, avoiding insufficient pressing that causes the fixing ring 120 to loosen or excessive pressing that causes damage to the component.

[0041] Furthermore, the bulging end of the bulging tool head 6 is truncated cone-shaped.

[0042] In the above technical solution, the frustum-shaped expansion end of the expansion tool head 6 is adapted to the inner circumferential surface of the locking nut 100 jaw 110. The frustum-shaped structure can act evenly on the inner side of each jaw 110 during the downward movement, so as to realize the synchronous and uniform expansion of multiple jaws 110, ensure that the deformation of each jaw 110 is consistent, avoid the difference in expansion of jaws 110 caused by manual expansion or traditional tooling, and make the locking force distribution balanced.

[0043] It should be noted that, to further improve the coaxiality and stability of the downward operation of the forming fixture head 6, a pin can be fixedly installed downward at the center of the forming end of the forming fixture head 6. Simultaneously, a matching insertion hole 51 is opened at the center of the positioning block 331 and the positioning seat 33. During the forming operation, the pin is first inserted into the insertion hole 51, forming a guide post structure to precisely guide the downward trajectory of the forming fixture head 6, effectively preventing the forming end from tilting or shaking, ensuring that the forming force is evenly applied to the inner side of each jaw 110, further improving assembly accuracy and yield.

[0044] Furthermore, a clearance opening 71 is provided at the lower end of the pressing tool head 7, and a pressing platform 72 protrudes from the inner side wall of the pressing tool head 7.

[0045] It should be noted that the clearance 71 of the pressing tool head 7 is larger than the diameter of the bend 130, the retaining ring 120, and the locking nut 100, so as to effectively accommodate the assembled components and avoid structural interference when performing assembly operations at both ends of the bend 130. To achieve the pressing of the retaining ring 120, a pressing platform 72 protrudes from the inner wall of the pressing tool head 7. The position of the pressing platform 72 corresponds to the retaining ring 120. During the pressing operation, the pressing tool head 7 moves downward, and the pressing platform 72 directly acts on the upper surface of the retaining ring 120 and presses it into place. To further improve the pressing stability and force uniformity, the pressing platform 72 can be extended circumferentially along the clearance 71 of the pressing tool head 7, increasing the pressing area, thereby effectively preventing the retaining ring 120 from tilting or jamming during the pressing process, improving the pressing quality and the reliability of the connection.

[0046] Furthermore, the upper drive component 4 and the lower drive component 2 are cylinders, hydraulic cylinders, or electric push rods.

[0047] In the above technical solution, the upper drive component 4 and the lower drive component 2 are selected from cylinders, hydraulic cylinders or electric push rods, with cylinders being preferred, and a manual valve 9 connected to the cylinder is installed on the support structure 1.

[0048] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0049] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An assembly device for an artificial heart vascular access component, characterized in that, include: Support structure (1); The lower drive component (2) is fixedly installed on the support structure (1); The fixed seat (3) is fixedly installed on the lower drive member (2). The fixed seat (3) is provided with a tightening mechanism for tightening the pawl (110) of the locking nut (100). The drive end of the lower drive member (2) is connected to the tightening mechanism and drives its action. The upper drive component (4) is fixedly installed on the support structure (1). The drive end of the upper drive component (4) is fixedly connected to the tooling connector (5). The tooling connector (5) is detachably fixedly connected to an expansion tooling head (6) for expanding the claw (110) of the lock nut (100) or a pressing tooling head (7) for pressing the retaining ring (120) to the outside of the lock nut (100).

2. The assembly apparatus for the artificial heart vascular access component according to claim 1, characterized in that, The fixed base (3) includes: The base plate (31) is fixedly connected to the lower drive member (2) and has a clearance hole for the drive end of the lower drive member (2) to pass through; The base (32) is fixedly installed on the base plate (31). The upper end of the base (32) has a locating seat (33) protruding. The locating seat (33) has a locating groove that cooperates with the locking nut (100). The top plate (34) is fixedly installed on the base (32), and the top plate (34) has a through hole facing the positioning seat (33).

3. The assembly apparatus for the artificial heart vascular access component according to claim 2, characterized in that, The tightening agencies include: The push plate (81) and the base (32) have a slot (321) at the lower end. The slot (321) and the base plate (31) enclose to form a driving cavity. The push plate (81) is located in the driving cavity. The driving end of the lower driving component (2) passes through the clearance hole and is fixedly connected to the push plate (81). The number of push rods (82) is the same as the number of claws (110) of the locking nut (100) and they are fixed radially to the upper end of the push plate (81). The base (32) has a through groove (322) for the push rods (82) to pass through. The upper inner side of the push rod (82) has a push rod (82) inclined surface. The top plate (34) has a relief groove (341) facing the upper end of the push rod (82). The number of sliders (83) is the same as that of push rods (82) and they are set one-to-one with push rods (82). The upper end of the base (32) is provided with a groove (323) corresponding to the slider (83). The groove (323) and the top plate (34) enclose each other to form a sliding cavity. The slider (83) slides with the sliding cavity. The outer end of the slider (83) is provided with a slider (83) inclined surface that slides with the inclined surface of push rod (82). The elastic element (84) abuts against the slider (83) and the positioning seat (33) at both ends respectively.

4. The assembly apparatus for the artificial heart vascular access component according to claim 2 or 3, characterized in that, It also includes a positioning block (331) fixedly installed in the positioning seat (33), and the positioning block (331) and the inner side wall of the positioning seat (33) form a positioning ring (332) for positioning the locking nut (100).

5. The assembly apparatus for the artificial heart vascular access component according to claim 3, characterized in that, The push plate (81) is fixedly mounted with an upper limit device (811) to limit the upward movement of the push plate (81).

6. The assembly apparatus for the artificial heart vascular access component according to claim 1, 2, 3 or 5, characterized in that, The tooling connector (5) has a socket (51). The mounting ends of the expansion tooling head (6) and the pressing tooling head (7) are provided with plugs that can be inserted into the socket (51). The tooling connector (5) also has a magnet hole that communicates with the socket (51). A magnet (52) is fixedly installed in the magnet hole. The inner side of the magnet (52) is flush with the inner sidewall of the socket (51).

7. The assembly apparatus for the artificial heart vascular access component according to claim 1, 2, 3 or 5, characterized in that, The support structure (1) is fixed to the tooling joint (5) with a limit seat (11), and the limit seat (11) is fixed with a lower limit member (12) for limiting the downward limit position of the upper drive member (4).

8. The assembly apparatus for the artificial heart vascular access component according to claim 1, 2, 3 or 5, characterized in that, The bulging end of the bulging tool head (6) is truncated.

9. The assembly apparatus for the artificial heart vascular access component according to claim 1, 2, 3 or 5, characterized in that, An clearance opening (71) is provided at the lower end of the pressing tool head (7), and a pressing platform (72) is provided on the inner side wall of the pressing tool head (7).

10. The assembly apparatus for the artificial heart vascular access component according to claim 1, 2, 3 or 5, characterized in that, The upper drive unit (4) and the lower drive unit (2) are cylinders, hydraulic cylinders or electric push rods.

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