Welding assembly device for dialyzer shell and end cover

Abstract

The utility model relates to an assembling device for a sealing ring, which is characterized in that the conveying directions of an end cover conveying line and a shell conveying line are arranged in parallel, an end cover feeding mechanism stretches across the upper parts of the end cover conveying line and the shell conveying line, a shell clamping mechanism is arranged above the shell conveying line, a shell positioning mechanism is arranged on the shell clamping mechanism, and the shell positioning mechanism is arranged on the shell conveying line. The end cover assembling mechanisms are arranged on the two sides of the shell positioning mechanism in the conveying direction perpendicular to the shell conveying line, and the heating mechanism is arranged between the shell clamping mechanism and the end cover assembling mechanisms. The dialyzer shell and blood cover feeding device overcomes the defect that dialyzer shells and blood covers are manually fed in the prior art. Full-automatic operation from feeding to welding to discharging can be achieved, the working efficiency is improved, and pollution caused by manual operation to dialyzer products is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical consumable production equipment, and in particular to a welding assembly device for dialyzer housings and end caps. Background Technology

[0002] Blood purification, also known as dialysis in daily life, involves drawing a patient's blood out of the body and purifying it through a dialysis device to remove certain pathogenic substances, thereby achieving the goal of treating diseases. Hemodialysis is one of the methods for treating chronic renal failure. However, the manufacturing of dialyzers in China remains a niche market, characterized by high overall production costs and low levels of automation. The processes for loading and assembling the dialyzer housing and end caps vary during dialyzer production. Currently, the loading of the dialyzer housing and end caps is typically done manually, which is time-consuming, labor-intensive, and prone to human error, leading to a decline in product quality. Furthermore, existing technologies disclose devices for manually placing the dialyzer housing and end caps and then welding them together, but in these devices, the end caps are placed too close to the heating block, making manual loading inconvenient and increasing the risk of burns. Summary of the Invention

[0003] To address the aforementioned problems, this utility model aims to overcome the shortcomings of manual loading of dialyzer housings and blood caps in the existing technology, and provides a welding assembly device for dialyzer housings and end caps.

[0004] A welding assembly apparatus for dialyzer housing and end caps, comprising:

[0005] End cap conveyor line, which is used to convey end caps to the material pick-up point of the end cap feeding mechanism;

[0006] A housing conveyor line is used to transport the housing to below the housing clamping mechanism and to transport the dialyzer that has been welded and assembled.

[0007] End cap feeding mechanism, which is used to transfer end caps on the end cap conveyor line to the end cap assembly mechanism;

[0008] A housing positioning mechanism is used to push a housing with an incorrect axial position to a uniform preset position;

[0009] A housing clamping mechanism is used to clamp and fix a housing in a uniform preset position;

[0010] An end cap assembly mechanism is used to clamp the end caps transferred by the end cap feeding mechanism and to move the end caps toward the housing.

[0011] A heating mechanism for heating the welded surfaces of the end cap and the housing;

[0012] The end cap conveyor line and the housing conveyor line are arranged in parallel conveying directions. The end cap feeding mechanism spans above the end cap conveyor line and the housing conveyor line. The housing clamping mechanism is located above the housing conveyor line. The housing positioning mechanism is located on the housing clamping mechanism. The end cap assembly mechanism is located on both sides of the housing positioning mechanism along the conveying direction perpendicular to the housing conveyor line. The heating mechanism is located between the housing clamping mechanism and the end cap assembly mechanism.

[0013] Compared with existing technologies, the technical advantages achieved by this solution are as follows: Continuous feeding of the end caps and shells is achieved through end cap conveyor lines and shell conveyor lines; positioning preparation before welding and assembly of the end caps is accomplished through the end cap feeding mechanism and end cap assembly mechanism; positioning preparation of the shells is completed through the shell positioning mechanism and shell clamping mechanism; heating of the welding surfaces of the end caps and shells is achieved through the heating mechanism; and finally, the end cap assembly mechanism completes the assembly of the end caps. This device can automatically complete the feeding and welding assembly of the end caps and shells, improving work efficiency and reducing contamination of the dialyzer products caused by human operation.

[0014] In the above-mentioned welding assembly device for dialyzer housing and end cap, the welding assembly device further includes a lifting mechanism. The lifting mechanism is disposed below the housing conveying line and is correspondingly disposed to the housing clamping mechanism. The lifting mechanism includes a lifting cylinder and a lifting member. The lifting cylinder drives the lifting member to lift the housing and move it toward the housing clamping mechanism. The highest position of the lifting member lifting the housing is the preset height for welding assembly of the housing.

[0015] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: by lifting the shells on the shell conveying line to the preset welding height through the lifting mechanism, the automation efficiency of the device is further improved, the automatic and accurate feeding of shells is realized, and the device structure is optimized.

[0016] In the aforementioned welding assembly device for dialyzer housings and end caps, the end cap conveying line includes a second chain drive assembly, an end cap carrier, baffles, and a fifth mounting plate. The fifth mounting plate is fixedly mounted on the chain of the second chain drive assembly. The fifth mounting plate is provided with two end cap carriers and two baffles. The two baffles are located at both ends of the fifth mounting plate, and the two end caps are disposed between the two baffles. The housing conveying line includes a first chain drive assembly and a carrier. The carrier is fixedly mounted on the chain of the first chain drive assembly. The chain conveying directions of the first chain drive assembly and the second chain drive assembly are parallel.

[0017] In the aforementioned welding assembly apparatus for a dialyzer housing and end caps, the end cap feeding mechanism includes:

[0018] The mounting frame is arranged across the end cap conveyor line and the housing conveyor line, and the direction of the span is perpendicular to the chain conveying direction.

[0019] A movable plate 1 is slidably mounted on the mounting frame along the transverse direction of the mounting frame;

[0020] Movable plate two, which is slidably disposed relative to movable plate one in the vertical direction;

[0021] A connecting plate, which is slidably disposed relative to the second movable plate in the transverse direction, and the length of the connecting plate extends in the vertical direction;

[0022] A pneumatic gripper is provided at the downward-facing end of the connecting plate.

[0023] Two finger grippers are disposed at the drive end of the pneumatic gripper;

[0024] The first movable plate is driven to move along the horizontal direction on the mounting frame and move the second movable plate along it. The second movable plate is driven to move along the vertical direction and move the connecting plate along it. The connecting plate is driven to move along the horizontal direction and move the first pneumatic gripper along it.

[0025] In the above-mentioned welding assembly device for dialyzer housing and end cap, the welding assembly device further includes a support platform, the support platform is fixedly connected to the frame, and the housing clamping mechanism includes a platform, two movable plates, two clamping cylinders, and two housing clamping members. The platform is fixedly connected to the support platform and is higher than the housing conveyor line. The movable plates are slidably disposed on the platform. The housing clamping members are connected to the movable plates. The clamping cylinders are fixedly connected to the platform. The driving end of the clamping cylinders is connected to the housing clamping members. The two clamping cylinders drive the two housing clamping members to move closer or further away.

[0026] In the aforementioned welding assembly device for dialyzer housing and end caps, the welding assembly device includes two end cap assembly mechanisms. Each end cap assembly mechanism includes a movable plate six, a pneumatic gripper three, two end cap clamping components, and a servo electric cylinder module. The movable plate six is ​​slidably disposed on the support platform along a direction perpendicular to the chain conveying direction. The pneumatic gripper three is fixedly connected to the movable plate six. The two end cap clamping components are respectively connected to the drive end of the pneumatic gripper three. The servo electric cylinder module is fixedly disposed on the support platform, and the drive end of the servo electric cylinder module is connected to the movable plate six.

[0027] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: clamping the end cap with the end cap clamping component helps to fix the position of the end cap; driving the clamped end cap to move by the servo electric cylinder module ensures the size of the dialyzer after welding by precisely driving the movement distance.

[0028] In the aforementioned welding assembly device for dialyzer housing and end caps, the housing positioning mechanism includes:

[0029] Platform 2, which is connected to the housing clamping mechanism and is disposed above the housing clamping mechanism;

[0030] Movable plate four, which is slidably disposed on platform two in a horizontal direction;

[0031] A second pneumatic gripper is fixedly mounted on the second platform, and the drive end of the second pneumatic gripper is connected to the fourth moving plate.

[0032] Movable plate five is slidably disposed relative to movable plate four in the vertical direction;

[0033] A centering pusher is fixedly disposed at the downward-facing end of the movable plate.

[0034] There are two of each of the four movable plates, two of the five movable plates, and two of the centering pushers. The two four movable plates are driven by the pneumatic gripper to move closer or further apart from each other. The four movable plates also drive the five movable plates to move. The five movable plates are driven to move vertically and drive the centering pushers to move.

[0035] Compared with existing technologies, the technical effect achieved by adopting this technical solution is that the centering pusher extending from above can effectively avoid the housing fed from below.

[0036] In the above-mentioned welding assembly device for dialyzer housing and end cap, the welding assembly device includes two heating mechanisms, each heating mechanism including two heating blocks, multiple heating tubes, two movable plates (VII) and two translation cylinders (II). The movable plates (VII) are slidably disposed on the support platform parallel to the chain conveying direction. The heating blocks are fixedly disposed on the movable plates (VII). Each heating block is provided with a heating tube. The driving end of the translation cylinders (II) is connected to the movable plates (VII). Under the drive of the two translation cylinders (II), the two heating blocks move closer to or further away from each other along the chain conveying direction.

[0037] In the above-mentioned welding assembly device for dialyzer housing and end cap, the lifting mechanism includes a movable plate eight, a reference block, and an adjusting screw. The movable plate eight is slidably disposed on the support platform along a direction perpendicular to the chain conveying direction. Two movable plates seven are slidably disposed on the movable plate eight. Two translation cylinders two are fixedly disposed on the movable plate eight. The reference block is fixedly connected to the support platform. One end of the adjusting screw is rotatably disposed on the reference block in a horizontal axial direction, and the other end is threadedly connected to the movable plate eight.

[0038] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: by setting the moving plate seven and the translation cylinder two on the moving plate eight, the position of the two heating blocks can be adjusted as a whole by adjusting the moving plate eight, which is beneficial for debugging.

[0039] By applying the technical solution of this utility model, the inconvenience and risk of burns from manual material feeding are avoided through the shell conveyor line, end cap conveyor line, and end cap feeding mechanism. Furthermore, this device can achieve fully automated operation from feeding to welding to unloading, improving work efficiency and reducing contamination of the dialyzer products caused by human operation. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of the welding and assembly device in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the end cap feeding mechanism in an embodiment of the present utility model;

[0042] Figure 3 This is a schematic diagram of the lifting mechanism and the housing clamping mechanism in an embodiment of the present utility model;

[0043] Figure 4 This is a schematic diagram of the housing positioning mechanism in an embodiment of the present utility model;

[0044] Figure 5 This is a schematic diagram of the end cap assembly mechanism in an embodiment of the present utility model;

[0045] Figure 6 This is a schematic diagram of the heating mechanism and the housing positioning mechanism in an embodiment of this utility model;

[0046] Figure 7 This is a schematic diagram of the end cap conveyor line in an embodiment of this utility model.

[0047] In the diagram, 100 is the end cap feeding mechanism; 101 is the mounting bracket; 102 is the servo synchronous belt module; 103 is the slide rail assembly one; 104 is the moving plate one; 105 is the mounting plate; 106 is the servo slide module; 107 is the slide rail assembly two; 108 is the moving plate two; 109 is the slide rail assembly three; 110 is the translation cylinder one; 111 is the connecting plate; 112 is the pneumatic gripper one; and 113 is the finger gripper.

[0048] 200. Lifting mechanism; 201. Mounting plate one; 202. Linear bearing; 203. Guide rod; 204. Lifting component; 205. Lifting cylinder; 206. Lifting connector;

[0049] 300. Housing clamping mechanism; 301. Mounting plate two; 302. Platform one; 303. Moving plate three; 304. Slide rail assembly four; 305. Clamping cylinder one; 306. Housing clamping component; 307. Connecting component one; 308. Buffer component; 309. Stop component;

[0050] 400. Housing positioning mechanism; 401. Mounting plate three; 402. Platform two; 403. Slide rail assembly five; 404. Moving plate four; 405. Pneumatic gripper two; 406. Connector two; 407. Mounting plate four; 408. Slide rail assembly six; 409. Moving plate five; 410. Centering pusher; 411. Lifting cylinder one;

[0051] 500. End cap assembly mechanism; 501. Moving plate six; 502. Slide rail assembly seven; 503. Fixing plate one; 504. Pneumatic gripper three; 505. Connector three; 506. End cap clamping component; 507. Fixing plate two; 508. Servo electric cylinder module;

[0052] 600. Heating mechanism; 601. Moving plate seven; 602. Slide rail assembly eight; 603. Heating block; 604. Translation cylinder two; 605. Moving plate eight; 606. Slide rail assembly nine; 607. Reference block; 608. Adjusting screw; 609. Heating tube;

[0053] 700. Shell conveyor line; 701. Chain drive assembly one; 702. Carrier; 710. End cap conveyor line; 711. Chain drive assembly two; 712. End cap carrier; 713. Baffle; 714. Mounting plate five;

[0054] 800. Support platform; 801. Clearance opening; 802. Adjustment plate;

[0055] 901. End cap; 902. Housing. Detailed Implementation

[0056] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0057] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0062] A dialyzer is used for hemodialysis. A complete dialyzer includes a housing 902, an end cap 901, and a fiber bundle membrane. Before assembling the end cap 901, the fiber bundle membrane in the housing 902 has already been injected with adhesive and its end face has been treated. Once the end cap 901 and the housing 902 are assembled, the dialyzer is complete.

[0063] See Figures 1-7The diagram illustrates a welding assembly apparatus for dialyzer housings and end caps, comprising an end cap feeding mechanism 100, a lifting mechanism 200, a housing clamping mechanism 300, a housing positioning mechanism 400, an end cap assembly mechanism 500, a heating mechanism 600, a housing conveying line 700, and an end cap conveying line 710. The housing conveying line 700 and the end cap conveying line 710 are arranged parallel to each other in their conveying directions. The end cap feeding mechanism 100 spans over both. The lifting mechanism 200, housing clamping mechanism 300, housing positioning mechanism 400, end cap assembly mechanism 500, and heating mechanism 600 are all positioned with the housing conveying line 700 as a reference. End caps 901 are placed on end cap carriers 712 of the end cap conveying line 710 for conveying. Housings 902 are placed on carriers 702 of the housing conveying line 700 for conveying. The lifting mechanism 200 is located below the housing conveyor line 700, the housing clamping mechanism 300 is located above the housing conveyor line 700, and the housing positioning mechanism 400 is located above the housing clamping mechanism 300. There are two end cap assembly mechanisms 500 and two heating mechanisms 600, located on either side of the housing clamping mechanism 300 perpendicular to the conveying direction of the housing conveyor line 700. The housing conveyor line 700 and the lifting mechanism 200 are mounted on the frame. The welding assembly device also includes a support platform 800, which is mounted on the frame. The housing clamping mechanism 300, the end cap assembly mechanism 500, and the heating mechanism 600 are mounted on the support platform 800.

[0064] After the housing 902 reaches the preset loading position, the lifting member 204 in the lifting mechanism 200 lifts the housing 902 to its highest point, which is the preset horizontal height of the assembled end cap 901. At this time, the housing positioning mechanism 400 located above starts to operate. The two centering push members 410 in the housing positioning mechanism 400 approach the housing 902 under the drive of the lifting cylinder 411. The two centering push members 410 are located above both ends of the housing 902. When the centering push members 410 approach the housing 902, they approach each other under the drive of the pneumatic gripper 405. The two approaching centering push members 410 contact the two welding surfaces of the housing 902 respectively, pushing the housing 902 to a preset fixed position based on the pneumatic gripper 405, thus achieving the centering of the housing 902 and ensuring that the housing 902 is in a fixed position each time. After the housing 902 is aligned, the two housing clamping members 306 in the housing clamping mechanism 300 move closer to the housing 902 under the drive of the clamping cylinder 305, and the two housing clamping members 306 located on both sides of the housing 902 clamp and fix the housing 902. The alignment pusher 410 ensures that the axial position of the housing 902 is kept consistent, and the housing clamping members 306 clamp and fix it, thus providing a precise positional reference for the subsequent assembly of the end cover 901.

[0065] After the housing clamping member 306 completes the clamping and fixing of the housing 902, the lifting member 204 descends back to its original position. The centering push member 410 rises back to its original position, and the loading preparation of the housing 902 is completed.

[0066] Simultaneously with the loading of the housing 902, the end cap 901 is also loaded. After the end cap 901 reaches the preset loading position, the finger grippers 113 in the end cap loading mechanism 100 are driven by the servo slide module 106 to approach the end cap conveyor line 710. When the finger grippers 113 reach the preset picking height, the translation cylinder 110 pushes the finger grippers 113 into the interior of the end cap 901. Then, the pneumatic gripper 112 drives the two finger grippers 113 to move away from each other, clamping the end cap 901 by squeezing the inner wall of the end cap 901. After the two finger grippers 113 clamp the end cap 901, the servo slide module 106 drives the finger grippers 113 to move upward, removing the end cap 901 from the end cap carrier 712 and away from the end cap conveyor line 710. Then, driven by the servo synchronous belt module 102, the finger grippers 113 are translated to above the housing conveyor line 700. After the end cap 901 reaches the preset position, it moves downward towards the end cap assembly mechanism 500 under the drive of the servo slide module 106. When the end cap 901 reaches the welding preparation height, the end cap clamping member 506 in the end cap assembly mechanism 500 is driven by the servo electric cylinder module 508 to move closer to the end cap 901. Then, under the drive of the pneumatic gripper three 504, the two end cap clamping members 506 clamp the end cap 901. After the end cap 901 is clamped by the two end cap clamping members 506, the two finger clamps 113 are driven by the pneumatic gripper one 112 to move closer to each other and release the clamp on the end cap 901. The finger clamps 113 are then driven away from the end cap 901 by the translation cylinder one 110 and exit from the inside of the end cap 901. After the finger clamps 113 exit, the servo slide module 106 drives the finger clamps 113 to move upward away from the end cap assembly mechanism 500. At this point, the preparation for loading end cap 901 is complete.

[0067] After the end cap 901 and housing 902 are loaded, the servo electric cylinder module 508 drives the end cap clamping member 506, which is holding the end cap 901, to move closer to the housing 902. When the end cap 901 and housing 902 are a preset distance apart, the end cap 901 stops moving closer. The heating blocks 603 located on both sides of the housing 902 axially move closer to the housing 902 under the drive of the translation cylinder 604. The heating part of the heating block 603 extends between the end cap 901 and housing 902. At this time, the welding end face of the end cap 901 and the welding end face of the housing 902 are close to the heating part, but the end cap 901 and housing 902 do not contact the heating block 603. This avoids the welding end face of the end cap 901 and housing 902 from being pulled out after heating is completed, which would cause a stringing phenomenon. After heating is complete, the heating block 603 retracts from between the end cap 901 and the housing 902. Driven by the servo electric cylinder module 508, the end cap 901 continues to move towards the housing 902 until the welding end face of the end cap 901 is pressed together with the welding end face of the housing 902. After a period of time, the welding end faces of the end cap 901 and the housing 902 are cooled and firmly fixed, thus completing the welding assembly of the end cap 901 and the housing 902. By presetting the distance the end cap 901 moves driven by the servo electric cylinder module 508 and adjusting the axial position of the housing 902 by the housing positioning mechanism 400, the overall length of the welded end cap 901 and housing 902 is kept within a certain precise range. The clamping of the end cap 901 by the end cap clamping member 506 and the clamping of the housing 902 by the housing clamping member 306 ensures that the axes of the end cap 901 and the housing 902 are collinear. After the welding assembly is completed, the end cap clamp 506 releases its grip on the end cap 901 and returns to its original position away from the end cap 901 under the drive of the servo electric cylinder module 508. The lifting member 204, driven by the lifting cylinder 205, rests against the middle of the housing 902. After the housing clamp 306 releases its grip on the housing 902, the dialyzer is lifted by the lifting member 204. Driven by the lifting cylinder 205, the lifting member 204 moves downwards and repositions the dialyzer onto the carrier 702. The housing conveyor line 700 transfers the dialyzer to the next station, thus completing the entire welding assembly process.

[0068] The structure of each part will be described in detail below with reference to the attached diagram.

[0069] See Figure 1 , Figure 3 and Figure 7Both the housing conveyor line 700 and the end cap conveyor line 710 are chain drive mechanisms, with the chains extending parallel to each other. Both are powered by servo motors, which drive the sprockets to rotate, which in turn drives the chain drive. It is understandable that the chain drive could be replaced with a synchronous belt drive. The housing conveyor line 700 includes a chain drive assembly 701 and carriers 702. The chain drive assembly 701 includes a chain, a sprocket, and a servo drive assembly. The carriers 702 are fixedly mounted on the chain. The chain drive assembly 701 has two chains, spaced apart, each with the same number of carriers 702. The corresponding carriers 702 on the two chains form a group of two carriers 702, which support both ends of the housing 902. The end cap conveyor line 710 includes a chain drive assembly 711, an end cap carrier 712, a baffle 713, and a mounting plate 714. The chain drive assembly 711 and the chain drive assembly 701 have identical components. The mounting plate 714 spans the two chains of the chain drive assembly 711 and is fixedly mounted on them. An end cap carrier 712 and a baffle 713 are respectively mounted at both ends of the mounting plate 714. The end cap carrier 712 is used to hold the end cap 901, and the baffle 713 is used to stop the axial movement of the end cap 901. When the finger clamp 113 is inserted into the end cap 901, the baffle 713 prevents the end cap 901 from moving. The end cap carriers 712 and baffles 713 on the same mounting plate 714 are arranged with two baffles 713 on either side and two end cap carriers 712 between the two baffles 713. The end cap 901 has a liquid outlet on its circumference. In order to ensure that the liquid outlets on the two end caps 901 in the dialyzer are consistent, the end cap carrier 712 has a receiving groove to accommodate the liquid outlet. Thus, the end cap 901 placed on the end cap carrier 712 is limited by the receiving groove, and the liquid outlets of all end cap carriers 712 face the same direction.

[0070] See Figure 2The function of the end cap loading mechanism 100 is to transport the end cap 901 from the end cap carrier 712 to the end cap assembly mechanism 500 to complete the loading of the end cap 901. The end cap loading mechanism 100 includes a mounting frame 101, a servo synchronous belt module 102, a slide rail assembly 103, a moving plate 104, a mounting plate 105, a servo slide module 106, a slide rail assembly 2 107, a moving plate 2 108, a slide rail assembly 3 109, a translation cylinder 110, a connecting plate 111, a pneumatic gripper 112, and a finger gripper 113. The mounting frame 101 is erected across the housing conveyor line 700 and the end cap conveyor line 710. A servo synchronous belt module 102 and a slide rail assembly 103 are arranged on the top of the mounting frame 101 along the direction spanning the housing conveyor line 700 and the end cap conveyor line 710. A movable plate 104 is slidably mounted on the mounting frame 101 via the slide rail assembly 103. The movable plate 104 is fixedly connected to the synchronous belt of the servo synchronous belt module 102. The servo synchronous belt module 102 drives the movable plate 104 to move back and forth above the housing conveyor line 700 and the end cap conveyor line 710 along the guide of the slide rail assembly 103. A mounting plate 105 is fixedly connected to one side of the movable plate 104, and the mounting plate 105 extends vertically. A servo slide module 106 and a slide rail assembly 107 are vertically arranged on the mounting plate 105. A movable plate 108 is slidably mounted on the mounting plate 105 via the slide rail assembly 107. The movable plate 108 is fixedly connected to the drive end of the servo slide module 106. The servo slide module 106 drives the movable plate 108 to move up and down on the mounting plate 105 along the guide of the slide rail assembly 107. A slide rail assembly 109 and a translation cylinder 110 are respectively arranged on both sides of the movable plate 108 in the horizontal direction. There are also connecting plates 111 on both sides. The connecting plates 111 are slidably mounted on the movable plate 108 via the slide rail assembly 109. The drive end of the translation cylinder 110 is connected to the connecting plate 111. The translation cylinder 110 drives the connecting plate 111 to move horizontally on the movable plate 108 along the guide of the slide rail assembly 109. The connecting plate 111 extends vertically. A pneumatic gripper 112 is located at one end of the connecting plate 111 near the housing conveyor line 700. A pair of finger grippers 113 are located at the driving end of the pneumatic gripper 112. The two finger grippers 113 are driven by the pneumatic gripper 112 to move closer or further apart. Each finger gripper 113 has a gripping part for holding the end cap 901, and the gripping part is designed to fit the end cap 901. The two pairs of finger grippers 113 in the end cap feeding mechanism 100 correspond to the end caps 901 on the two end cap carriers 712 in the end cap conveyor line 710. The servo synchronous belt module 102 drives the moving plate 104 to move, thereby driving the finger grippers 113 to move upwards on the end cap conveyor line 710. When the finger grippers 113 reach a preset position, the moving plate 104 stops moving.Then, the servo slide module 106 drives the moving plate 108 to move downwards, bringing the finger clamp 113 closer to the end cap conveyor line 710. After the finger clamp 113 has moved to a preset height, the translation cylinder 110 drives the connecting plate 111 to move horizontally, moving the finger clamp 113 toward the end cap 901. The clamping parts of the pair of finger clamps 113 extend into the interior of the end cap 901. During the process of the finger clamps 113 extending into the end cap 901, one side of the end cap 901 abuts against the baffle 713, and the baffle 713 ensures that the end cap 901 will not move. When the pair of finger clamps 113 have extended into the end cap 901 to a predetermined depth, the pneumatic gripper 112 drives the pair of finger clamps 113 to move away from each other, so that the two finger clamps 113 are pressed against the inner wall of the end cap 901, thereby clamping the end cap 901. After the end cap 901 is held by two finger clamps 113, the servo slide module 106 drives the finger clamps 113 to move upward so that the end cap 901 is away from the end cap carrier 712. After the end cap 901 rises to a predetermined height, the servo synchronous belt module 102 drives the finger clamps 113 to hold the end cap 901 and move it above the housing conveyor line 700.

[0071] See Figure 3 The lifting mechanism 200 is located below the middle of the two chains of the housing conveyor line 700. The function of the lifting mechanism 200 is to lift the housing 902 on the carrier 702 and move the housing 902 to the housing clamping mechanism 300 to complete the loading of the housing 902. The lifting mechanism 200 includes a mounting plate 201, a linear bearing 202, a guide rod 203, a lifting component 204, a lifting cylinder 205, and a lifting connector 206. The mounting plate 201 is fixed on the frame. The linear bearing 202 is mounted on the mounting plate 201. The guide rod 203 slides vertically relative to the mounting plate 201 through the linear bearing 202. The lifting cylinder 205 is fixed on the mounting plate 201. The drive end of the lifting cylinder 205 is connected to the guide rod 203 through the lifting connector 206. The lifting cylinder 205 drives the guide rod 203 to move up and down vertically. A lifting member 204 is fixedly connected to the top of the guide rod 203 in the vertical direction. The top of the lifting member 204 is provided with a receiving part to facilitate the positioning of the housing 902. The shape of the receiving part is the same as the part on the end cap carrier 712 where the end cap 901 is placed and the part on the carrier 702 where the housing 902 is placed. Its cross-section is approximately trapezoidal. The positioning of the housing 902 is completed by the sloping surfaces of the two opposite sides of the trapezoidal cross-section. After the housing 902 is transported to the preset position by the housing conveyor line 700, the lifting member 204 is driven upward by the lifting cylinder 205. The width of the lifting member 204 along the axial direction of the housing 902 is not wide. After contacting the middle position of the housing 902, it begins to lift the housing 902 upward, and the housing 902 is lifted to the preset height for welding assembly.

[0072] See Figure 3The function of the housing clamping mechanism 300 is to clamp and fix the housing 902. The housing clamping mechanism 300 is located directly above the lifting mechanism 200 and is fixedly mounted on the support platform 800, which is fixedly connected to the frame. The support platform 800 has a clearance opening 801 corresponding to the position of the lifting mechanism 200, through which the lifting member 204 passes to a predetermined height. The housing clamping mechanism 300 includes a second mounting plate 301, a first platform 302, a third movable plate 303, a fourth slide rail assembly 304, a first clamping cylinder 305, a housing clamping member 306, a first connecting member 307, a buffer member 308, and a stop member 309. The second mounting plate 301 is fixedly connected to the support platform 800, and the first platform 302 is fixedly mounted on the top of the second mounting plate 301. The third movable plate 303 is slidably mounted on the first platform 302 via the fourth slide rail assembly 304. Two movable plates 303 are provided, and each movable plate 303 is connected to a housing clamping member 306 via a connector 307. The two housing clamping members 306 are positioned on either side of the clearance opening 801. The lifting member 204 passes through the clearance opening 801 and reaches a preset height before being positioned between the two housing clamping members 306. Each housing clamping member 306 has a clamping part for clamping the housing 902, which is designed to fit the housing 902. A clamping cylinder 305 is fixedly mounted on the mounting plate 301, and the drive end of the clamping cylinder 305 is connected to the housing clamping member 306. After the housing positioning mechanism 400 completes the axial positioning of the housing 902, the two clamping cylinders 305 respectively drive the housing clamping members 306 to approach and clamp the housing 902. One of the housing clamping components 306 is equipped with a positioning pin, and the other housing clamping component 306 has a corresponding pin hole. The engagement of the pin and the pin hole allows the clamping parts of the two housing clamping components 306 to more accurately clamp the housing 902. The mounting plate 2 301 is also equipped with a stop 309, and the platform 1 302 is equipped with a buffer 308. The cooperation of the stop 309 and the buffer 308 buffers the kinetic energy of the clamping cylinder 1 305, preventing damage to the housing 902 due to excessive thrust during the contact process between the two housing clamping components 306. The two housing clamping components 306 have clearance positions to accommodate the lifting component 204 when it reaches its highest point.

[0073] See Figure 4The housing positioning mechanism 400 is positioned above the housing clamping mechanism 300. Its function is to align each housing 902 that reaches a predetermined height, ensuring precise positioning of the housing 902 during welding. The housing positioning mechanism 400 includes a mounting plate 3 401, a platform 2 402, a slide rail assembly 5 403, a movable plate 404, a pneumatic gripper 2 405, a connector 2 406, a mounting plate 407, a slide rail assembly 6 408, a movable plate 5 409, a centering pusher 410, and a lifting cylinder 1 411. The mounting plate 3 401 is fixedly connected to the platform 1 302. The platform 2 402 is fixedly mounted on the top of the mounting plate 3 401. Two movable plates 404 are slidably mounted on the platform 2 402 via the slide rail assembly 5 403. The two movable plates 404 can move closer or further apart along the guide of the slide rail assembly 5 403. Pneumatic gripper 2 405 is fixedly mounted on platform 2 402. The drive end of pneumatic gripper 2 405 is connected to movable plate 404 via two connectors 2 406. Pneumatic gripper 2 405 drives the two movable plates 404 to move closer or further apart. The direction of movement of the two movable plates 404 is consistent with the axis of the upper housing 902 of carrier 702 and the axial direction of the upper housing 902 of lifting member 204. Mounting plate 407 is fixedly connected to each of the two movable plates 404. The mounting plate 407 extends vertically, and connector 2 406 is connected to the movable plate 404 via the mounting plate 407. A slide rail assembly 408 is vertically mounted on mounting plate 407. Movable plate 409 is slidably mounted on mounting plate 407 via slide rail assembly 408. Lifting cylinder 411 is fixedly connected to mounting plate 407 or platform 402. The drive end of lifting cylinder 411 is connected to movable plate 409. A centering pusher 410 is located at the end of movable plate 409 near the housing clamping mechanism 300. Lifting cylinder 411 drives the centering pusher 410 to move vertically up and down. The centering pusher 410 can be part of movable plate 409 or a separate component connected to movable plate 409. After housing 902 is lifted to the preset welding assembly height by lifting component 204, lifting cylinder 411 drives the centering pusher 410 to move closer to housing 902. After the centering pusher 410 reaches a preset distance from the housing 902, the pneumatic gripper 405 drives the two centering pushers 410 to move closer to each other. This brings the sides of the centering pushers 410 into contact with the welded end face of the housing 902. The two centering pushers 410 push the housing 902, which is axially misaligned, to a uniform preset position, referenced by the pneumatic gripper 405. Once the axial position of the housing 902 is aligned, the two housing clamping members 306 clamp the housing 902 under the drive of the clamping cylinder 305, thus fixing the housing 902. After the housing 902 is fixed, the centering pushers 410 move away from the housing 902 under the drive of the pneumatic gripper 405 and reset under the drive of the lifting cylinder 411. This completes the loading of the housing 902.

[0074] It should be noted that, in another way, the two housing clamping members 306 do not passively wait for the lifting mechanism 200 to lift the housing 902 into place before clamping. Instead, the housing clamping mechanism 300 and the housing positioning mechanism 400 provided on the housing clamping mechanism 300 move downward together to approach the housing 902 on the housing carrier 702 to achieve alignment and clamping. That is, the lifting and lowering capability of the housing clamping mechanism 300 is used to replace the lifting mechanism 200's lifting effect on the housing 902.

[0075] See Figure 1 and Figure 5The end cap assembly mechanism 500 is used to clamp the end cap 901 and drive the end cap 901 closer to the housing 902 clamped by the housing clamping member 306. The end cap assembly mechanism 500 includes a moving plate 6 501, a slide rail assembly 7 502, a fixed plate 1 503, a pneumatic gripper 3 504, a connector 3 505, an end cap clamping member 506, a fixed plate 2 507, and a servo electric cylinder module 508. The end cap assembly mechanism 500 is mounted on an adjusting plate 802, which is fixedly connected to the support platform 800. This design facilitates the overall adjustment of the position of the end cap assembly mechanism 500 relative to the housing clamping mechanism 300 via the adjusting plate 802, maintaining the consistency of the internal guides and driving directions of the end cap assembly mechanism 500 during the adjustment process. The slide rail assembly 7 502 is mounted on the adjusting plate 802, and the extension direction of the slide rail assembly 7 502 is the same as the axial direction of the housing 902 clamped by the housing clamping member 306. The movable plate 6 501 is slidably mounted on the adjusting plate 802 via the slide rail assembly 7 502. The fixed plate 1 503 is fixedly connected to the movable plate 6 501 and is vertically mounted. The pneumatic gripper 3 504 is fixedly connected to the fixed plate 1 503 and is connected to the vertical surface of the fixed plate 1 503. The two drive ends of the pneumatic gripper 3 504 are respectively connected to two end cap clamping members 506 via connector 3 505. The end cap clamping members 506 have clamping parts for clamping end caps 901, and the size of the clamping parts is adapted to the design of end caps 901. In order to position the downward-facing liquid outlet of the end caps 901, the two end cap clamping members 506 are also provided with liquid outlet receiving notches. The receiving notches on the two end cap clamping members 506 combine to form a receiving groove for receiving the liquid outlet. Fixed plate 2 507 is fixedly mounted on adjusting plate 802 and is vertically mounted. Servo electric cylinder module 508 is fixedly mounted on the vertical plane of fixed plate 2 507. The drive end of servo electric cylinder module 508 passes through fixed plate 2 507 and is connected to fixed plate 1 503. Servo electric cylinder module 508 drives moving plate 6 501 to move, thereby driving end cap clamping member 506 to move back and forth along the guide direction of slide rail assembly 7 502. When servo synchronous belt module 102 drives two pairs of finger clamps 113 to clamp end cap 901 and move them above housing conveyor line 700, the two pairs of finger clamps 113 move closer to housing clamping mechanism 300 under the drive of moving plate 2 108. The two end caps 901 on the two pairs of finger clamps 113 are moved to both sides of housing clamping mechanism 300 along the axis direction of housing 902 clamped by housing clamping member 306 until the end cap 901 reaches the preset welding height. At this time, the servo electric cylinder module 508 drives the two end cap clamping parts 506 to approach the end cap 901. After the two end cap clamping parts 506 reach the preset clamping position, the two end cap clamping parts 506 approach each other and clamp the end cap 901 under the drive of the pneumatic gripper 3 504. The liquid outlet on the circumferential direction of the end cap 901 is received by the receiving groove and faces downward.After the two end cap clamping parts 506 clamp the end cap 901, the two finger clamps 113 clamping the end cap 901 move closer together and release their grip on the end cap 901 under the drive of the pneumatic gripper 112. The translation cylinder 110 drives the two finger clamps 113 to move away from the end cap 901. After the finger clamps 113 move out of the end cap 901, the two finger clamps 113 move vertically upward under the drive of the servo slide module 106. Thus, the loading of the end cap 901 is completed.

[0076] See Figure 1 and Figure 6The function of the heating mechanism 600 is to heat the welded end faces of the end cap 901 and the housing 902. The heating mechanism 600 includes a movable plate 601, a slide rail assembly 602, a heating block 603, a translation cylinder 604, and a heating tube 609. The movable plate 601 is slidably mounted on the support platform 800 via the slide rail assembly 602. The guiding direction of the slide rail assembly 602 is perpendicular to the guiding direction of the slide rail assembly 602. There are two movable plates 601, which are respectively positioned on either side of the end cap clamp 506 in the direction of movement. Each movable plate 601 has a heating block 603 fixed to it. Similarly, there are two translation cylinders 604, which are fixedly mounted on the support platform 800. The drive end of the translation cylinder 604 is connected to the movable plate 601. The translation cylinder 604 can drive the two heating blocks 603 to approach and interlock to form a heating ring. One heating block 603 has a positioning pin, and the other heating block 603 has a positioning pin hole. The cooperation of the positioning pin and the positioning pin hole ensures more accurate interlocking of the two heating blocks 603. Each heating block 603 is equipped with a heating tube 609, through which heat is generated. To facilitate adjustment of the position of the heating block 603, the heating mechanism 600 also includes a movable plate 605, a slide rail assembly 606, a reference block 607, and an adjusting screw 608. The slide rail assembly 606 is mounted on the support platform 800 and extends in the same direction as the slide rail assembly 502. The movable plate 605 is slidably mounted on the support platform 800 via the slide rail assembly 606. The slide rail assembly 602 and the translation cylinder 604 are instead mounted on the movable plate 605. The movement of the movable plate 605 drives the movable plate 601, the slide rail assembly 602, the heating block 603, the translation cylinder 604, and the heating tube 609 to move as a whole. The reference block 607 is mounted on the support platform 800. One end of the adjusting screw 608 is rotatably mounted on the reference block 607, and the other end is connected to the movable plate 605. The position of the movable plate 605 can be adjusted by adjusting the screw 608. After both end caps 901 and housing 902 are loaded, the two end caps 901 on both sides of housing 902 are clamped by end cap clamping parts 506 and moved closer to housing 902. Once the distance between the end caps 901 and housing 902 reaches a preset value, the end caps 901 stop moving, and the heating blocks 603 begin to move towards housing 902. Driven by translation cylinder 604, the two heating blocks 603 move closer to housing 902 and insert between the welding surfaces of end caps 901 and housing 902. The welding surfaces of both end caps 901 and housing 902 are close to the heating blocks 603. The distance from the welding surface of end cap 901 to the heating part of heating block 603 is controlled at 1~3mm, and the distance from the welding surface of housing 902 to the heating part of heating block 603 is controlled at 1~3mm.After the heating blocks 603 pause for a period of time to allow the welding surfaces of the end cap 901 and the housing 902 to be heated, the two heating blocks 603 move away from each other and reset under the control of the corresponding translation cylinder 604. After the heating blocks 603 reset, the end cap 901 is held by the end cap clamping member 506 and continues to move towards the housing 902 a preset distance, so that the welding surfaces of the end cap 901 and the housing 902 are pressed together. After a period of time, the welding point of the end cap 901 and the housing 902 cools and solidifies. The two end cap clamping members 506 release their grip on the end cap clamping members 506 under the drive of the pneumatic gripper 504, and the end cap clamping members 506 reset under the drive of the servo electric cylinder module 508.

[0077] After the dialyzer is welded, the lifting member 204 approaches and lifts the housing 902 under the drive of the lifting cylinder 205. After the lifting member 204 lifts the housing 902, the two housing clamping members 306 release their clamping on the housing 902 under the drive of the corresponding clamping cylinder 305. The dialyzer is lifted by the lifting member 204 and moves downward until both ends of the dialyzer are placed on the carrier 702. The housing conveyor line 700 then transports the dialyzer to the next station.

[0078] It should be noted that the sliding configuration mentioned above can be a combination of slide rail and slider, a combination of slider and guide groove, a combination of guide rod and sliding bearing, or other structures that can achieve guided sliding.

[0079] It should be noted that the various cylinders and grippers mentioned in the above scheme can be replaced by electric cylinders and grippers.

[0080] It should be noted that the driving end mentioned in the claims and specification refers to the extension rod end, rotating rod end, clamping rod end, etc., of the cylinder used to drive the components to perform the required actions. Driving connection refers to connection to the driving end.

[0081] It should be noted that the "penetration" mentioned in the claims and specification refers to a component penetrating through another component.

[0082] Other structures mentioned above that need to be explained, and those that can be directly derived from the accompanying drawings, are also considered as supplementary explanations to this embodiment.

[0083] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A welding assembly apparatus for dialyzer housing and end caps, characterized in that, include: End cap conveyor line (710), the end cap conveyor line (710) is used to convey end caps (901) to the material pick-up point of end cap feeding mechanism (100); The housing conveyor line (700) is used to convey the housing (902) to the area below the housing clamping mechanism (300) and to convey the dialyzer that has been welded and assembled. End cap feeding mechanism (100), the end cap feeding mechanism (100) is used to move the end cap (901) on the end cap conveyor line (710) to the end cap assembly mechanism (500); A housing positioning mechanism (400) is used to push a housing (902) with an incorrect axial position to a uniform preset position; A housing clamping mechanism (300) is used to clamp and fix a housing (902) in a uniform preset position. End cap assembly mechanism (500), the end cap assembly mechanism (500) is used to clamp the end cap (901) transferred by the end cap feeding mechanism (100) and can clamp the end cap (901) to move towards the housing (902); A heating mechanism (600) is used to heat the welded surfaces of the end cap (901) and the housing (902); The end cap conveying line (710) and the housing conveying line (700) are arranged in parallel conveying directions. The end cap feeding mechanism (100) spans above the end cap conveying line (710) and the housing conveying line (700). The housing clamping mechanism (300) is located above the housing conveying line (700). The housing positioning mechanism (400) is located on the housing clamping mechanism (300). The end cap assembly mechanism (500) is located on both sides of the housing positioning mechanism (400) along the conveying direction perpendicular to the housing conveying line (700). The heating mechanism (600) is located between the housing clamping mechanism (300) and the end cap assembly mechanism (500).

2. The welding assembly device for dialyzer housing and end cap according to claim 1, characterized in that, The welding assembly device further includes a lifting mechanism (200), which is located below the housing conveying line (700) and corresponds to the housing clamping mechanism (300). The lifting mechanism (200) includes a lifting cylinder (205) and a lifting component (204). The lifting cylinder (205) drives the lifting component (204) to lift the housing (902) and move it toward the housing clamping mechanism (300). The highest position of the lifting component (204) lifting the housing (902) is the preset height for the welding assembly of the housing.

3. The welding assembly device for dialyzer housing and end cap according to claim 2, characterized in that, The end cap conveying line (710) includes a chain drive assembly two (711), an end cap carrier (712), a baffle (713), and a mounting plate five (714). The mounting plate five (714) is fixedly mounted on the chain of the chain drive assembly two (711). The mounting plate five (714) is provided with two end cap carriers (712) and two baffles (713). The two baffles (713) are located at both ends of the mounting plate five (714). The two end caps (901) are disposed between the two baffles (713). The housing conveying line (700) includes a chain drive assembly one (701) and a carrier (702). The carrier (702) is fixedly mounted on the chain of the chain drive assembly one (701). The chain conveying directions of the chain drive assembly one (701) and the chain drive assembly two (711) are parallel.

4. The welding assembly device for dialyzer housing and end cap according to claim 3, characterized in that, The end cap feeding mechanism (100) includes: Mounting bracket (101) is arranged across the end cap conveyor line (710) and the housing conveyor line (700), and the direction of the crossing is perpendicular to the chain conveying direction; A movable plate (104) is slidably disposed on the mounting frame (101) in the transverse direction of the mounting frame (101); Movable plate two (108) is slidably disposed in the vertical direction relative to movable plate one (104); A connecting plate (111) is slidably disposed relative to the second movable plate (108) in the transverse direction, and the length of the connecting plate (111) extends in the vertical direction; Pneumatic gripper 1 (112), wherein the pneumatic gripper 1 (112) is disposed at the downward end of the connecting plate (111); Finger clamps (113), two of the finger clamps (113) are disposed at the drive end of the pneumatic gripper (112); The first movable plate (104) is driven to move along the horizontal direction on the mounting bracket (101) and move the second movable plate (108) along the horizontal direction. The second movable plate (108) is driven to move along the vertical direction and move the connecting plate (111) along the vertical direction. The connecting plate (111) is driven to move along the horizontal direction and move the first pneumatic gripper (112) along the horizontal direction.

5. The welding assembly device for a dialyzer housing and end cap according to claim 4, characterized in that, The welding assembly device further includes a support platform (800), which is fixedly connected to the frame. The housing clamping mechanism (300) includes a platform (302), two movable plates (303), two clamping cylinders (305), and two housing clamping members (306). The platform (302) is fixedly connected to the support platform (800) and is higher than the housing conveying line (700). The movable plates (303) are slidably disposed on the platform (302). The housing clamping members (306) are connected to the movable plates (303). The clamping cylinders (305) are fixedly connected to the platform (302). The driving end of the clamping cylinders (305) is connected to the housing clamping members (306). The two clamping cylinders (305) respectively drive the two housing clamping members (306) to move closer to or further away from each other.

6. The welding assembly apparatus for a dialyzer housing and end cap according to claim 5, characterized in that, The welding assembly device includes two end cap assembly mechanisms (500). Each end cap assembly mechanism (500) includes a movable plate six (501), a pneumatic gripper three (504), two end cap clamping parts (506), and a servo electric cylinder module (508). The movable plate six (501) is slidably disposed on the support platform (800) perpendicular to the chain conveying direction. The pneumatic gripper three (504) is fixedly connected to the movable plate six (501). The two end cap clamping parts (506) are respectively connected to the drive end of the pneumatic gripper three (504). The servo electric cylinder module (508) is fixedly disposed on the support platform (800), and the drive end of the servo electric cylinder module (508) is connected to the movable plate six (501).

7. The welding assembly apparatus for a dialyzer housing and end cap according to claim 5, characterized in that, The housing positioning mechanism (400) includes: Platform 2 (402) is connected to the housing clamping mechanism (300) and is disposed above the housing clamping mechanism (300); Movable plate four (404) is slidably disposed on platform two (402) in the horizontal direction. Pneumatic gripper two (405) is fixedly mounted on platform two (402), and the driving end of pneumatic gripper two (405) is connected to the moving plate four (404). Movable plate five (409) is slidably disposed relative to movable plate four (404) in the vertical direction; A centering pusher (410) is fixedly disposed at the downward-facing end of the movable plate five (409); There are two of each of the four movable plates (404), five movable plates (409), and centering pushers (410). The two four movable plates (404) are driven by the two pneumatic grippers (405) to move closer or further apart from each other. The four movable plates (404) also drive the five movable plates (409) to move. The five movable plates (409) are driven to move in the vertical direction and drive the centering pushers (410) to move.

8. A welding assembly apparatus for a dialyzer housing and end cap according to claim 5, characterized in that, The welding assembly device includes two heating mechanisms (600). Each heating mechanism (600) includes two heating blocks (603), multiple heating tubes (609), two movable plates (601), and two translation cylinders (604). The movable plates (601) are slidably disposed on the support platform (800) parallel to the chain conveying direction. The heating blocks (603) are fixedly disposed on the movable plates (601). Each heating block (603) is provided with a heating tube (609). The driving end of the translation cylinders (604) is connected to the movable plates (601). The two heating blocks (603) move closer to each other or further away from each other along the chain conveying direction under the drive of the two translation cylinders (604).

9. A welding assembly device for a dialyzer housing and end cap according to claim 8, characterized in that, The lifting mechanism (200) includes a movable plate eight (605), a reference block (607), and an adjusting screw (608). The movable plate eight (605) is slidably disposed on the support platform (800) perpendicular to the chain conveying direction. Two movable plates seven (601) are slidably disposed on the movable plate eight (605). Two translation cylinders two (604) are fixedly disposed on the movable plate eight (605). The reference block (607) is fixedly connected to the support platform (800). One end of the adjusting screw (608) is rotatably disposed on the reference block (607) and the other end is threadedly connected to the movable plate eight (605).

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