Endoscope spring winding apparatus

Abstract

This invention discloses an endoscope spring winding device, relating to the technical field of endoscope spring production equipment. The endoscope spring winding device includes a base, a mandrel clamping assembly, and a feeding device. The mandrel clamping assembly has two clamping heads and two first driving members. The first driving members are mounted on the base and drive the clamping heads to rotate. The clamping heads are used to clamp the mandrel. The feeding device includes a feeding seat, a raw material rotating drum, a first driving assembly, a guide block, and a second driving assembly. The raw material rotating drum is rotatably connected to the feeding seat, and the first driving assembly drives it to rotate to output slender raw materials. The guide block is slidably connected to the outer wall of the feeding seat and has a guide tube on it. The second driving assembly includes a guide motor and a transmission mechanism. The guide motor is installed in the inner cavity of the feeding seat and drives the guide block to reciprocate along the raw material conveying direction through the transmission mechanism. The technical solution of this invention sets up a guiding structure to improve the stability of slender raw materials during the feeding process, thereby ensuring rapid feeding of slender raw materials.

Description

Technical Field

[0001] This invention relates to the field of endoscope spring production equipment technology, and particularly to an endoscope spring winding device. Background Technology

[0002] Currently, in the medical device field, endoscopic instruments typically require transport via slender spring tubes. These spring tubes are characterized by a large length-to-slenderness ratio and high precision requirements for the spiral winding. Existing endoscopic spring winding equipment generally does not have a separate, dedicated feeding device; instead, it uses a generic feeding device. This generic feeding device lacks a corresponding guiding structure, causing slender materials to easily accumulate or detach from the feeding path when moving to the feeding position, directly affecting the winding process of the long springs. Summary of the Invention

[0003] The main objective of this invention is to provide an endoscope spring winding device, which is designed with a matching guide structure to improve the stability of slender materials during the feeding process, thereby ensuring rapid feeding of slender materials.

[0004] To achieve the above objectives, the present invention provides an endoscope spring winding device for conveying slender materials to the endoscope spring winding device, the endoscope spring winding device comprising: Base; A mandrel clamping assembly includes two clamping heads and two first driving members, the two first driving members being mounted on the base and located on both sides of the base; each first driving member is kinetically connected to one of the clamping heads for driving the clamping head to rotate; each clamping head is used to clamp a mandrel; and A feeding device includes a feeding base, a raw material rotating drum, a first driving assembly, a guide block, and a second driving assembly. The feeding base is slidably connected to the base and has an inner cavity. The raw material rotating drum is rotatably connected to the feeding base and is used to carry and release slender raw materials. The first driving assembly is drivenly connected to the raw material rotating drum and is used to drive the raw material rotating drum to rotate and output slender raw materials. The guide block is slidably connected to the outer wall of the feeding base and is located above the raw material rotating drum. The guide block has a guide tube for the slender raw materials to pass through. The second driving assembly includes a guide motor and a transmission mechanism. The guide motor is installed in the inner cavity, and the transmission mechanism is connected to the output end of the guide motor and the guide block, and is used to drive the guide block to reciprocate along the conveying direction of the slender raw materials.

[0005] In one embodiment, the transmission mechanism includes a gear and a rack. The outer wall of the loading seat is provided with a mounting platform. The gear is mounted on the mounting platform. The output shaft of the guide motor passes through the mounting platform and is connected to the gear. The rack is disposed at the bottom of the guide block, and the gear meshes with the rack through an opening in the mounting platform.

[0006] In one embodiment, the guide block has a groove at one end away from the rack, and a fastener or snap-fit ​​structure is provided in the groove. The guide tube is embedded in the groove by the fastener or the snap-fit ​​structure.

[0007] In one embodiment, the mounting platform is provided with two support arms on one side adjacent to the guide block. The two support arms extend along the conveying direction of the slender raw material and are respectively disposed on both sides of the guide block. The two support arms are provided with support blocks at the ends away from the mounting platform, and the support blocks are provided with support grooves for supporting the spring after it has been formed.

[0008] In one embodiment, the support arm includes a fixed sleeve and a movable rod. One end of the fixed sleeve is connected to the mounting platform, one end of the movable rod is slidably inserted into the fixed sleeve, and the other end of the movable rod is connected to the support block. The side wall of the fixed sleeve is provided with a threaded hole, and a locking screw is disposed in the threaded hole. The end of the locking screw abuts against the outer wall of the movable rod to lock the extension length of the movable rod.

[0009] In one embodiment, the inner wall of the guide tube is provided with a wear-resistant coating, or the guide tube is made of a wear-resistant ceramic material.

[0010] In one embodiment, the feeding device for medical device springs further includes a guide wheel and a plurality of tensioning wheels, which are rotatably connected to the feeding seat and located between the raw material drum and the guide block, for guiding and tensioning slender raw materials.

[0011] In one embodiment, the feeding device for medical device springs further includes a sensor mounted on the feeding seat and located between the raw material drum and the guide block, for detecting the tension or position of the slender raw material.

[0012] In one embodiment, the first drive component is a feeding motor, and the output shaft of the feeding motor is coaxially connected to the rotating shaft of the raw material drum or connected through a belt drive mechanism.

[0013] The technical solution of this invention involves setting a feeding device on the base. The feeding device includes a first drive assembly connected to the raw material drum and a second drive assembly connected to the guide block, along with matching guide blocks and guide tubes. The first drive assembly actively drives the raw material drum to rotate, providing controllable conveying power for the output of slender raw materials, ensuring that the raw materials can be released continuously and stably at a preset speed. The second drive assembly independently drives the guide block, which is slidably connected to the feeding seat, to reciprocate along the conveying direction. This allows the guide tube, fixed on the guide block, to dynamically adjust the feeding position of the slender raw materials according to the needs of the winding host, providing real-time guidance and path correction for the conveying raw materials, preventing the raw materials from deviating from the predetermined trajectory due to swaying or inertia caused by high-speed conveying. This design, which separates the raw material conveying power from the guiding motion power, allows the guide block and guide tube to actively adapt to the conveying rhythm of the raw materials. The two work together to ensure continuous and rapid output of the raw materials, while eliminating the risks of path deviation and accumulation through dynamic guidance. This fundamentally improves the stability of the feeding process and provides structural protection for the rapid and reliable feeding of slender raw materials. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of a feeding device for an endoscope spring winding equipment provided by the present invention; Figure 2 A schematic diagram of the assembly of the guide block and transmission mechanism of the feeding device of the endoscope spring winding equipment provided by the present invention; Figure 3 This is a schematic diagram of the endoscope spring winding device provided by the present invention.

[0016] Explanation of icon numbers: 10. Feeding seat; 10a. Inner cavity; 11. Mounting platform; 12. Support arm; 13. Support block; 20. Raw material drum; 30. Guide block; 30a. Groove; 31. Guide tube; 40. Transmission mechanism; 41. Gear; 42. Rack; 50. Guide wheel; 60. Tensioning wheel; 1. Slender raw material; 2. Mandrel; 100. Base; 200. Mandrel clamping assembly.

[0017] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0021] Traditional endoscope spring winding equipment typically uses a general-purpose feeding device when feeding spring tubes with large length-to-slenderness ratios and high spiral precision requirements in the medical device field. This device lacks a matching guide structure, which causes the slender raw materials to easily accumulate or deviate from the preset feeding path when driven to the feeding position, directly affecting the winding process of long springs.

[0022] For this, please refer to Figure 1 and Figure 2This application proposes an endoscope spring winding device including a base 100, a mandrel clamping assembly 200, and a feeding device. The mandrel clamping assembly 200 includes two clamping heads and two first driving members. The two first driving members are installed on the base 100 and located on both sides of the base 100. Each first driving member is convexly connected to one of the clamping heads and is used to drive the clamping head to rotate. Each clamping head is used to clamp the mandrel. The feeding device includes a feeding seat 10, a raw material rotating drum 20, a first driving assembly, a guide block 30, and a second driving assembly. The feeding seat 10 has an inner cavity 10a; the raw material drum 20 is rotatably connected to the feeding seat 10 and is used to carry and release the slender raw material 1; the first drive assembly is driven to the raw material drum 20 and is used to drive the raw material drum 20 to rotate to output the slender raw material 1; the guide block 30 is slidably connected to the outer wall of the feeding seat 10 and is located above the raw material drum 20, and the guide block 30 is provided with a guide tube 31 for the slender raw material 1 to pass through; the second drive assembly includes a guide motor and a transmission mechanism 40, the guide motor is installed in the inner cavity 10a, and the transmission mechanism 40 is connected to the output end of the guide motor and the guide block 30, and is used to drive the guide block 30 to reciprocate along the conveying direction of the slender raw material 1.

[0023] The loading seat 10 serves as the main structure of the loading device, and its interior is provided with an inner cavity 10a to accommodate some of the driving components and to provide installation and support for other components. This inner cavity 10a can be constructed as a closed or semi-closed space, for example, by integral casting or welding of multiple plates, and its main function is to provide protection and installation positions for the internal components.

[0024] The function of the raw material drum 20 is to carry a large amount of slender raw material 1 and release it gradually through its rotation for subsequent processing. The raw material drum 20 can be a cylindrical or conical container, rotatably connected to the feeding seat 10 via bearings or other means. The slender raw material 1 can be stacked in a disc-like or scattered manner inside the raw material drum 20, and is guided to the discharge port by the rotation of the drum 20.

[0025] The function of the first drive component is to provide rotational power to the raw material drum 20, ensuring that the slender raw material 1 can be stably and continuously output from the raw material drum 20. The first drive component can be a manual crank mechanism, which drives the drum to rotate by the operator; or it can be a small motor, which transmits power to the raw material drum 20 through friction transmission or chain transmission, so that it rotates at a preset speed, thereby realizing the continuous output of the slender raw material 1.

[0026] The guide block 30 is slidably connected to the outer wall of the feeding seat 10 and positioned above the raw material drum 20. The guide block 30 can slide using a linear guide rail and slider, or it can engage with the feeding seat 10 via a simple dovetail groove structure. The key function of the guide block 30 is to support the guide tube 31 and guide the conveying path of the slender raw material 1 through its own movement. The guide tube 31 is a channel set on the guide block 30, and its main function is to provide a precise passage for the slender raw material 1, ensuring its stability during conveying and preventing deviation or entanglement. The guide tube 31 can be a channel directly machined onto the guide block 30, or a metal or plastic tube fixed to the guide block 30 by bonding, pressing, or other methods. Its function is to provide a precise passage for the slender raw material 1. The movement of the guide block 30 is synchronized or compensated by the controller based on the feed speed or position signal of the mandrel clamping assembly 200 to define its functional logic.

[0027] The second drive assembly includes a power system consisting of a guide motor and a transmission mechanism 40. The guide motor is installed in the inner cavity 10a of the feeding seat 10 and is connected to the guide block 30 through the transmission mechanism 40. Its overall function is to drive the guide block 30 to reciprocate along the conveying direction of the slender raw material 1 to adapt to different winding requirements or optimize the feeding process. The transmission mechanism 40 can be a linkage mechanism that converts the rotational motion of the guide motor into the linear reciprocating motion of the guide block 30; or it can be a screw-nut mechanism in which the guide motor drives the screw to rotate, and the nut is fixedly connected to the guide block 30, thereby achieving precise reciprocating positioning and movement of the guide block 30.

[0028] It should be noted that in existing technologies, the wire feeding mechanism reciprocates on the processing platform via a moving component, simultaneously performing the dual functions of conveying metal wire and moving itself. However, this integrated design results in a complex and heavy wire feeding mechanism, and the coupling of conveying and moving power makes independent and precise control difficult. Unlike existing technologies, the guide block 30 in this application is set independently of the raw material drum 20 and the first drive component, and is only used to guide the conveying direction of the slender raw material, without undertaking the function of driving the raw material to move; the second drive component independently drives the guide block 30 to reciprocate, completely decoupled from the first drive component in terms of power. This 'power separation, functional purification' design allows the guide block 30 to be lighter and more responsive, thereby achieving precise dynamic correction of the conveying path of the slender raw material.

[0029] The feeding device in this embodiment effectively solves the problem in the prior art where slender raw materials 1 easily accumulate or detach from the feeding path during transportation by setting up a reciprocating guide block 30 and a guide tube 31 on it, and precisely controlling its movement by a second drive component. As a result, the slender raw material 1 can obtain stable guidance and support before entering the endoscope spring winding device, improving the stability of the feeding process, thereby ensuring the rapid and continuous winding of long springs with large length-to-slenderness ratios and high spiral precision requirements in the medical device field.

[0030] Further, please refer to Figure 1 and Figure 2 A linear guide pair is provided between the guide block 30 and the outer wall of the feeding seat 10. The linear guide pair includes a guide rail and a slider. The guide rail is fixed to the outer wall of the feeding seat 10 and extends along the conveying direction of the slender raw material 1. The slider is fixed to the side of the guide block 30 and slides with the guide rail.

[0031] By setting a linear guide pair, the guide block 30 moves smoothly along the guide rail under the drive of the second drive component. The linear guide pair can withstand large radial loads and overturning moments, effectively suppressing the swaying or wobble that may occur during the high-speed reciprocating movement of the guide block 30, thereby ensuring the positional accuracy of the guide tube 31 and ensuring that the slender material 1 is always stably conveyed along the preset path. Compared with the existing technology that uses a sliding groove and moving parts, the linear guide pair of this application has higher load-bearing capacity and motion accuracy, and is particularly suitable for medical device spring tube feeding scenarios where the conveying accuracy of slender materials is extremely high.

[0032] Please see Figure 1 and Figure 2 The outer wall of the feeding seat 10 is equipped with two limit switches, which are located at opposite ends of the reciprocating movement path of the guide block 30, respectively, to limit the maximum travel of the guide block 30. The guide block 30 is equipped with a trigger plate that cooperates with the limit switches. When the guide block 30 moves to a preset limit position, the trigger plate touches the corresponding limit switch, and the limit switch sends a limit signal to the control system. The control system then stops the guide motor or changes its direction, thereby preventing the guide block 30 from exceeding its travel range and colliding with other components. This limiting structure effectively ensures the safety of equipment operation and avoids mechanical damage caused by misoperation or control failure.

[0033] Please see Figure 1 and Figure 2The mounting platform 11 includes a fixed base and a movable base. The fixed base is fixed to the outer wall of the feeding base 10, and the movable base is connected to the fixed base via a height adjustment assembly. The guide motor and the gear 41 are mounted on the movable base. The height adjustment assembly includes an adjusting screw and a locking nut. The adjusting screw passes between the fixed base and the movable base. By rotating the adjusting screw, the height of the movable base relative to the fixed base 11a can be changed. The locking nut is used to lock the adjusted position. For slender raw materials 1 of different diameters or mandrels 2 of different specifications, the operator can adjust the height of the mounting platform 11 through the height adjustment assembly, thereby changing the vertical position of the guide tube 31 relative to the mandrel 2, so that the slender raw material 1 can enter the winding area at the optimal angle. This design significantly expands the applicability of the equipment and avoids the trouble of having to completely modify the feeding device when changing to different specifications of raw materials.

[0034] Please see Figure 1 and Figure 2 This application further proposes that the transmission mechanism 40 includes a gear 41 and a rack 42. The outer wall of the loading seat 10 is provided with a mounting platform 11. The gear 41 is mounted on the mounting platform 11. The output shaft of the guide motor passes through the mounting platform 11 and is connected to the gear 41. The rack 42 is disposed at the bottom of the guide block 30, and the gear 41 meshes with the rack 42 through the opening in the mounting platform 11.

[0035] Specifically, the transmission mechanism 40 consists of a gear 41 and a rack 42. The gear 41 is a toothed mechanical element that, through meshing with the rack 42, converts the rotational motion of the guide motor into the linear reciprocating motion of the guide block 30. The tooth profile, module, number of teeth, and other parameters of the gear 41 can be designed according to the required transmission ratio, load-bearing capacity, and motion accuracy. For example, a spur gear 41 or a worm gear can be used. The rack 42 is a mechanical element with straight tooth profiles, typically used in conjunction with the gear 41 to convert rotational motion into linear motion. In this application, the rack 42 meshes with the gear 41, serving as the direct drive component for the linear reciprocating movement of the guide block 30. The length and tooth profile of the rack 42 should match the mating gear 41 to ensure smooth transmission without jamming. The rack 42 can be an integral structure or a segmented structure, fixed to the guide block 30 by bolts or other means.

[0036] The outer wall of the loading seat 10 is provided with a mounting platform 11, which is a specially designed structure on the outer wall of the loading seat 10 to provide a stable mounting base for the gear 41. The mounting platform 11 can be a protrusion, a flat area, or a bracket with a specific shape; its design should ensure the positional accuracy and stability of the gear 41 after installation. The material of the mounting platform 11 is usually the same as that of the loading seat 10 to ensure the strength and rigidity of the overall structure. Its size and shape must match the installation requirements of the gear 41, and sufficient space must be reserved for guiding the output shaft of the motor to pass through.

[0037] The gear 41 is mounted on the mounting platform 11 and is fixed to the platform 11 by bearings, keyways, or bolts to ensure stable rotation and precise meshing with the rack 42. During installation, it is necessary to ensure that the axis of the gear 41 is perpendicular to the direction of movement of the guide block 30, and that the tooth surface of the gear 41 maintains the correct meshing clearance with the tooth surface of the rack 42 to reduce wear and noise and improve transmission efficiency.

[0038] The output shaft of the guide motor passes through the mounting platform 11 and connects to the gear 41. The output shaft of the guide motor is a key component for power transmission; it passes through the mounting platform 11 and connects directly or via a coupling to the gear 41. This connection method ensures that the rotational power of the guide motor can be directly and efficiently transmitted to the gear 41, thereby driving the rack 42. The output shaft can pass through a through hole in the mounting platform 11, with precise machining of the hole's size and position to ensure the concentricity and rotational accuracy of the output shaft. The connection method can employ key connections, expansion sleeve connections, or bolt connections to ensure a secure and reliable connection, preventing slippage or loosening.

[0039] The rack 42 is disposed at the bottom of the guide block 30 and is firmly fixed to the bottom of the guide block 30, so that it can mesh with the gear 41 mounted on the mounting platform 11. This arrangement allows the linear movement of the guide block 30 to be directly driven by the rotation of the gear 41. The rack 42 can be fixed by screws, riveting, or welding to ensure that it will not loosen or deform during the reciprocating movement of the guide block 30.

[0040] The gear 41 meshes with the rack 42 through an opening in the mounting platform 11. The opening in the mounting platform 11 allows the teeth of the gear 41 to extend and precisely mesh with the rack 42, which is located at the bottom of the guide block 30. The design of this opening must take into account the size of the gear 41, the width of the rack 42, and the required meshing clearance to ensure smooth and stable transmission between the gear 41 and the rack 42. The edges of the opening can be chamfered or rounded to reduce friction and wear.

[0041] By specifically designing the transmission mechanism 40 as a combination of gear 41 and rack 42, and coordinating it with the mounting platform 11, the output shaft connection of the guide motor, and the structure in which gear 41 meshes with rack 42 through an opening, precise and stable reciprocating movement of guide block 30 is achieved. The meshing transmission of gear 41 and rack 42 has the advantages of constant transmission ratio, high transmission accuracy, strong load-bearing capacity, and compact structure.

[0042] Please see Figure 1 and Figure 2 This application further proposes that in the above-mentioned feeding device, the guide block 30 is provided with a groove 30a at one end away from the rack 42, and a fastener or snap-fit ​​structure is provided in the groove 30a, and the guide tube 31 is embedded in the groove 30a by the fastener or the snap-fit ​​structure.

[0043] The guide block 30 has a groove 30a at its end away from the rack 42. This groove 30a is a structure specifically designed on the guide block 30 for mounting the guide tube 31. Its shape and size are usually matched to the shape of the guide tube 31 to ensure that the guide tube 31 can be accurately positioned and securely embedded. The groove 30a provides the guide tube 31 with a pre-defined, limited installation space on the guide block 30, thereby ensuring the relative positional accuracy between the guide tube 31 and the guide block 30. The groove 30a can be formed directly on the guide block 30 body by milling, casting, or 3D printing, or it can be a prefabricated part that is then fixed to the guide block 30 by welding, screwing, or other methods. Its positioning "at the end away from the rack 42" is intended to optimize the spatial layout, avoid interference with the transmission mechanism 40 (such as the rack 42), and may place the guide tube 31 in a position more conducive to the conveying of slender raw materials 1.

[0044] Fasteners or snap-fit ​​structures are provided within the groove 30a. These fasteners or snap-fit ​​structures are mechanical devices used to securely fix the guide tube 31 within the groove 30a. When fasteners are used, they can be screws, bolts, pins, wedges, or pressure plates, etc. For example, threaded holes can be pre-drilled in the sidewall or bottom of the groove 30a, and screws can be screwed in to tighten or clamp the guide tube 31; alternatively, pressure plates and bolts can be used to press the guide tube 31 into the groove 30a. When snap-fit ​​structures are used, they can be elastic clips, spring clips, dovetail joints, or protrusion-recessed joints, etc. For example, the inner wall of the groove 30a can be designed with a groove, and the outer wall of the guide tube 31 can be designed with corresponding locking blocks, achieving quick engagement through elastic deformation; alternatively, a spring-loaded mechanism can be used to apply pressure to the guide tube 31, keeping it within the groove 30a. The choice of these structures depends on factors such as the required fixing strength, ease of assembly and disassembly, and manufacturing cost.

[0045] The guide tube 31 is fitted into the groove 30a by the fastener or the snap-fit ​​structure. This means that the guide tube 31 is first placed or inserted into the groove 30a of the guide block 30, and then the guide tube 31 is firmly fixed inside the groove 30a by operating the fastener (such as tightening the screw) or activating the snap-fit ​​structure (such as pressing the buckle). This fitting method ensures that a tight and stable connection is formed between the guide tube 31 and the guide block 30, which can effectively resist the impact and vibration generated when the guide block 30 reciprocates, and prevent the guide tube 31 from loosening or falling off.

[0046] Through the above technical solution, a groove 30a is specially set on the guide block 30 for embedding the guide tube 31, and it is fixed with fasteners or snap-fit ​​structures, which improves the stability and reliability of the guide tube 31 installation. This design allows the guide tube 31 to be accurately positioned on the guide block 30, ensuring the stability of the guide tube 31 even when the guide block 30 is moving back and forth at high speed, thus ensuring the accuracy and continuity of conveying the slender material 1. At the same time, the use of fasteners or snap-fit ​​structures for embedding makes the disassembly and replacement of the guide tube 31 more convenient and efficient. When the guide tube 31 needs to be replaced due to wear, or when a guide tube 31 of different specifications needs to be replaced due to production needs, the operator can quickly loosen the fasteners or release the snap-fit, remove the old guide tube 31 and install the new guide tube 31, without the need for large-scale disassembly or replacement of the entire guide block 30, greatly shortening downtime and improving the equipment maintenance efficiency and production flexibility. This modular design concept not only reduces maintenance costs, but also allows the equipment to better adapt to diverse production needs.

[0047] Please see Figure 1 and Figure 2 This application further proposes that the mounting platform 11 is provided with two support arms 12 on one side adjacent to the guide block 30. The two support arms 12 extend along the conveying direction of the slender raw material 1 and are respectively located on both sides of the guide block 30. The two support arms 12 are provided with a support block 13 at the end away from the mounting platform 11. The support block 13 is provided with a support groove for supporting the spring after molding.

[0048] Specifically, the support arm 12 is a rod-shaped or plate-shaped component used to provide structural support, with one end fixedly connected to the mounting platform 11 and extending outward from the mounting platform 11. These support arms 12 are designed to be located to the side of the guide block 30 to ensure that they do not interfere with the guide block 30 as it reciprocates along the conveying direction of the elongated material 1. The support arm 12 can be made of high-strength metal materials, such as stainless steel or aluminum alloy, to ensure sufficient rigidity and load-bearing capacity. Its connection method can employ various methods such as bolt fixing, welding, or integral casting to adapt to different manufacturing processes and strength requirements.

[0049] The extension direction of the support arms 12 is consistent with the conveying path of the slender material 1, meaning they are parallel to the movement trajectory of the slender material 1. This design allows the support arms 12 to effectively position the support block 13 in the area after the spring is formed, thus providing support immediately after the spring leaves the guide tube 31. The length of the support arms 12 can be adjusted according to actual needs to adapt to the requirements of different winding equipment for the spring output position. The two support arms 12 are symmetrically arranged on both sides of the guide block 30, forming a stable support structure. This double-sided support design provides balanced load-bearing capacity, effectively preventing the support block 13 from tilting or swaying under force, thereby ensuring stable support for the formed spring.

[0050] Meanwhile, this arrangement also provides sufficient space for the reciprocating movement of the guide block 30. The support block 13 is the component that directly contacts the formed spring and provides a lifting function. It is firmly installed at the far end of the two support arms 12, that is, the end closest to the spring forming area. The material of the support block 13 can be selected according to the characteristics of the spring. For example, for springs that are easily scratched, a support block 13 with a smooth surface or covered with a soft material can be selected; for heavy-duty springs, a high-strength wear-resistant material must be selected. The lifting groove is a specially designed recessed structure on the support block 13, the shape and size of which match the outer diameter or cross-sectional shape of the formed spring. For example, for a spring with a circular cross-section, the groove 30a can be semi-circular or V-shaped; for a square or irregularly shaped spring, the groove 30a can be designed with a corresponding matching shape. The groove 30a can stably support the spring in it, effectively preventing the spring from rolling, slipping or deforming due to its own weight during the conveying process, ensuring that the spring can still maintain its preset geometric shape after leaving the winding equipment. The inner wall of groove 30a can be finely machined to reduce friction and damage to the spring surface.

[0051] The support arm 12 includes a fixed sleeve and a movable rod. One end of the fixed sleeve is connected to the mounting platform 11, and one end of the movable rod is slidably inserted into the fixed sleeve. The other end of the movable rod is connected to the support block 13. The side wall of the fixed sleeve is provided with a threaded hole, and a locking screw is provided in the threaded hole. The end of the locking screw abuts against the outer wall of the movable rod to lock the extension length of the movable rod.

[0052] Specifically, the support arm 12 is no longer a single fixed structure, but consists of a fixed sleeve and a movable rod to achieve adjustable length. The fixed sleeve, as the base of the support arm 12, is securely connected at one end to the mounting platform 11, providing a stable base for the entire support structure. The fixed sleeve is typically designed as a hollow structure, such as a cylinder or square tube, to allow the movable rod to slide inside. The movable rod is a rod with one end slidably inserted inside the fixed sleeve, and the other end connected to the support block 13. The movable rod and the fixed sleeve achieve relative movement through a sliding fit, thereby changing the overall length of the support arm 12. To ensure smooth sliding and a certain degree of precision, an appropriate clearance can be used between the movable rod and the fixed sleeve, or auxiliary structures such as guide bushings or linear bearings can be provided on the sliding surface. The side wall of the fixed sleeve has threaded holes for installing locking screws. The locking screws can be wing screws with handles, hex socket screws, or other easy-to-operate fasteners. When the length of the support arm 12 needs to be adjusted, the operator can loosen the locking screw, allowing the movable rod to slide freely within the fixed sleeve. Once the movable rod is adjusted to the desired position, the locking screw is tightened, and its end abuts against the outer wall of the movable rod. Friction or clamping force secures the movable rod in its current position, thus locking the extension length of the support arm 12. To enhance the locking effect, the outer wall of the movable rod may be designed with a groove 30a, a flat surface, or an anti-slip texture in the area abutting the locking screw.

[0053] Through the above technical solution, the support arm 12 is designed as a telescopic structure consisting of a fixed sleeve and a movable rod, and its length is locked with a locking screw. The feeding device of this application can flexibly adjust the position of the support block 13 according to springs of different lengths or different winding process requirements. When it is necessary to adjust the support length, simply loosen the locking screw, slide the movable rod to the desired position, and then tighten the locking screw to complete the adjustment. This adjustable support arm 12 design greatly improves the versatility and adaptability of the equipment, avoids the trouble of replacing or modifying the support structure due to changes in spring size, and thus effectively improves production efficiency and the flexibility of the equipment.

[0054] Please see Figure 1 and Figure 2The support block 13 is rotatably connected to the ends of the two support arms 12 via hinge shafts 110. An angle locking element, such as a set screw, spring pin, or ratchet mechanism, is provided between the support block 13 and the support arms 12 to lock the rotation angle of the support block 13 relative to the support arms 12. When winding springs of different specifications, the operator can loosen the angle locking element, rotate the support block 13 to a suitable angle to ensure optimal contact between the support groove and the outer surface of the mandrel 2, and then tighten the angle locking element. This rotatable connection structure can accommodate mandrels 2 of different diameters, avoiding instability caused by angle mismatch.

[0055] Please see Figure 1 and Figure 2 This application further proposes that the inner wall of the guide tube 31 is provided with a wear-resistant coating, or that the guide tube 31 is made of wear-resistant ceramic material.

[0056] Specifically, the inner wall of the guide tube 31 is provided with a wear-resistant coating. This wear-resistant coating is a thin film with high hardness and low coefficient of friction formed on the surface of the inner wall of the guide tube 31 through a specific process (such as physical vapor deposition PVD, chemical vapor deposition CVD, thermal spraying, or electroplating). Common wear-resistant coating materials include, but are not limited to, titanium nitride (TiN), chromium nitride (CrN), diamond-like carbon (DLC) coatings, or alumina ceramic coatings. These coatings can improve the surface hardness and wear resistance of the inner wall of the guide tube 31, thereby effectively reducing the frictional resistance generated when the slender material 1 passes through.

[0057] Alternatively, the guide tube 31 can be made of wear-resistant ceramic material. Wear-resistant ceramic material refers to engineering ceramics with excellent wear resistance, such as alumina ceramics, zirconia ceramics, or silicon carbide ceramics. The guide tube 31 can be manufactured entirely from such ceramic material through a sintering process, or it can be manufactured using a composite method of a ceramic liner and a metal shell. Compared with traditional metal materials, wear-resistant ceramic materials have higher hardness, better corrosion resistance, and a lower coefficient of friction, which can fundamentally solve the wear problem of the guide tube 31.

[0058] By employing the aforementioned technical solutions, such as applying a wear-resistant coating to the inner wall of the guide tube 31 or directly manufacturing the guide tube 31 using wear-resistant ceramic materials, the wear on the inner wall of the guide tube 31 during the conveying process of the slender raw material 1 can be significantly reduced. This not only extends the service life of the guide tube 31 and reduces the frequency of replacement and maintenance, but also ensures that the slender raw material 1 maintains stable conveying accuracy throughout long-term use, avoiding the impact of wear-induced changes in the inner diameter of the guide tube 31 on the positioning accuracy of the slender raw material 1. Simultaneously, the reduced friction also helps protect the surface of the slender raw material 1, preventing scratches or damage during conveying, thereby ensuring the quality of the final wound spring.

[0059] Please see Figure 1 and Figure 2 Furthermore, the feeding device also includes a guide wheel 50 and a plurality of tensioning wheels 60. The guide wheel 50 and the plurality of tensioning wheels 60 are rotatably connected to the feeding seat 10 and are located between the raw material drum 20 and the guide block 30, for guiding and tensioning the slender raw material 1.

[0060] Specifically, the guide wheel 50 is a wheel used to change the conveying direction of the elongated raw material 1 or to ensure that it travels along a specific path. The guide wheel 50 is typically made of a material with a low coefficient of friction, such as metal, engineering plastic, or ceramic, and is mounted on a bearing to allow it to rotate freely. The guide wheel 50 is fixedly mounted on the feed seat 10, and its position is precisely designed to ensure that the elongated raw material 1, after being output from the raw material drum 20, can enter the subsequent tensioning wheel 60 or guide block 30 at the correct angle and position.

[0061] Multiple tension rollers 60 refer to one or more sets of rollers used to apply and maintain a stable tension on the slender material 1. Multiple tension rollers 60 are staggered between the guide roller 50 and the guide block 30, causing the slender material 1 to wind in an S-shape around each tension roller 60, thereby increasing the contact angle between the material and the rollers, thus achieving effective tension control within a limited space. These tension rollers 60 can be configured in various ways. For example, fixed tension rollers 60 can be used in conjunction with movable tension rollers 60, where the movable tension rollers 60 apply a preset tension to the slender material 1 through springs, gravity, or pneumatic devices. When the slender material 1 passes through these tension rollers 60, it forms a certain S-shaped path or a winding path, thus maintaining a constant tension under the action of the tension rollers 60. The surface of the tension rollers 60 can be designed to be smooth, with V-grooves or U-grooves to accommodate slender materials 1 of different diameters and materials, and to ensure that the material does not easily slip or get damaged during passage. These tensioning rollers 60 are all rotatably connected to the feed seat 10 to ensure that the slender raw material 1 can pass through smoothly and reduce frictional resistance. The guide roller 50 and multiple tensioning rollers 60 are arranged sequentially along the conveying direction of the slender raw material 1 and are located between the raw material drum 20 and the guide block 30. The guide roller 50 is closer to the raw material drum 20, and the multiple tensioning rollers 60 are closer to the guide block 30. Thus, before the slender raw material 1 enters the guide block 30 for final guidance, directional guidance and tension stabilization control are completed sequentially.

[0062] Through the above technical solution, the guide wheel 50 can effectively guide the slender material 1, ensuring its stable transport along the preset path and avoiding path deviation. Simultaneously, multiple tensioning wheels 60 work together to apply and maintain stable tension on the slender material 1, effectively absorbing tension fluctuations during material output and preventing the slender material 1 from becoming loose, tangled, or overstretched. This precise guidance and stable tension control improve the stability, accuracy, and reliability of the slender material 1 transport, providing a solid guarantee for the efficient and high-quality forming of subsequent winding equipment, thus effectively solving problems such as unstable tension, path deviation, or tangling that may occur during the transport of the slender material 1.

[0063] Please see Figure 1 and Figure 2 This application further proposes that the feeding device also includes a sensor, which is installed on the feeding seat 10 and located between the raw material drum 20 and the guide block 30, for detecting the tension or position of the slender raw material 1.

[0064] A sensor is a detection device that can sense the measured information and transform the sensed information into an electrical signal or other required form of information output according to a certain rule, so as to meet the requirements of information transmission, processing, storage, display, recording and control.

[0065] Specifically, sensors can be categorized into tension sensors and position sensors based on their detection targets. Tension sensors can be strain gauge, piezoelectric, or capacitive types, acquiring tension data by detecting changes in tensile force generated during the conveying of the slender material 1. Position sensors can be photoelectric, proximity, or vision sensors, used to monitor the lateral or longitudinal position of the slender material 1 in real time, ensuring stable conveying along a preset path. The sensors are installed on the feeding base 10, ensuring a stable connection with the entire feeding device structure and preventing a decrease in detection accuracy due to vibration or impact during equipment operation. Specific installation methods include bolt fixing, snap-fit ​​connection, or integration within the base body, ensuring that the sensor's detection surface or area effectively covers the conveying path of the slender material 1.

[0066] The sensor is located between the raw material drum 20 and the guide block 30. This arrangement allows for real-time monitoring of the state of the elongated raw material 1 after it is released from the raw material drum 20 and before it enters the guide block 30. This means that the system can acquire the original conveying state of the elongated raw material 1 in the early stages before it undergoes fine guidance, thereby enabling timely detection and correction of tension or positional abnormalities in the early stages and effectively preventing the problem from escalating. For example, a tension sensor can be installed below or to the side of the roller through which the elongated raw material 1 passes, reflecting tension by detecting the pressure or deflection on the roller; a position sensor can be installed above or to the side of the conveying path of the elongated raw material 1, determining the precise position of the elongated raw material 1 through beam obstruction or image recognition.

[0067] The sensor is used to detect the tension or position of the slender material 1. Detecting tension helps control the feed speed of the slender material 1 and prevents breakage or excessive slack, ensuring uniformity during the winding process. Detecting position helps prevent the slender material 1 from deviating from the preset path, avoiding tangling or blockage, and ensuring the accuracy of the winding process. This detection data can be used as feedback signals to adjust the rotational speed of the first drive component (e.g., the feed motor), or to fine-tune the conveying path of the slender material 1 through other actuators, thereby achieving closed-loop control of the conveying process of the slender material 1.

[0068] The first driving component is a feeding motor, and the output shaft of the feeding motor is coaxially connected to the rotating shaft of the raw material drum 20 or connected through a belt drive mechanism 40.

[0069] Specifically, a feed motor is a motor specifically designed for precise control of material conveying. It typically possesses excellent speed and torque control performance, enabling stable power output according to preset parameters. This feed motor can be a stepper motor, servo motor, or DC geared motor, among others. Stepper motors and servo motors offer high-precision position and speed control, suitable for applications requiring extremely high feeding accuracy, ensuring the precise output and speed of slender materials. DC geared motors, on the other hand, have a relatively simple structure and lower cost, suitable for applications with less stringent accuracy requirements but demanding higher torque. The feed motor drives the load directly or indirectly through its output shaft.

[0070] The output shaft of the feeding motor and the rotating shaft of the raw material drum 20 can be connected either coaxially or via a belt drive mechanism 40. When coaxially connected, the center lines of the output shaft of the feeding motor and the rotating shaft of the raw material drum 20 coincide, and they are directly connected by a coupling (e.g., a rigid coupling or a flexible coupling). This connection method is compact, has a short power transmission path, and high transmission efficiency, minimizing energy loss and transmission errors, but requires high alignment accuracy between the two shafts. When using a belt drive mechanism 40, a driving pulley is installed on the output shaft of the feeding motor, and a driven pulley is installed on the rotating shaft of the raw material drum 20. The two pulleys are connected by a flexible transmission belt (e.g., a V-belt or a synchronous belt). The belt drive mechanism 40 enables long-distance transmission, has good buffering and vibration absorption capabilities, effectively absorbs impacts and vibrations during transmission, reduces noise, and has relatively low installation accuracy requirements. Furthermore, the transmission ratio can be changed by adjusting the diameter ratio of the pulleys, thus flexibly adjusting the rotational speed of the raw material drum 20.

[0071] Through the above technical solution, the first driving component is specifically defined as a feeding motor, and a coaxial connection or belt drive mechanism 40 is used to ensure that the power generated by the feeding motor is efficiently and stably transmitted to the raw material drum 20. The feeding motor itself has precise speed and torque control capabilities. Combined with direct or flexible transmission methods, it can effectively avoid problems such as slippage, vibration, or excessive transmission gaps that may occur in traditional transmission methods. This ensures that the raw material drum 20 rotates smoothly at a preset speed, achieving continuous and uniform output of slender raw materials 1. In particular, the coaxial connection method has a compact structure and high transmission efficiency, making it suitable for applications with high space and precision requirements. The belt drive mechanism 40 has good buffering and vibration absorption capabilities, effectively reducing impact and noise during transmission and allowing for certain installation deviations, thus improving the system's adaptability and reliability. This allows the feeding device to more accurately control the conveying speed and quantity of slender raw materials 1, improving the stability of the subsequent winding and forming process and product quality.

[0072] Please see Figure 1 and Figure 2 The mandrel clamping assembly 200 is used to wind the slender raw material 1 output from the guide tube 31 of the feeding device into an endoscope spring.

[0073] The endoscopic spring winding equipment is an integrated production system whose core function is to wind slender raw materials from their initial state into finished springs. This equipment integrates multiple processes, including feeding, conveying, and winding, to automate and optimize the spring production process. Its design philosophy focuses on optimizing the entire production chain and reducing intermediate steps, thereby improving production efficiency and product quality.

[0074] The mandrel clamping assembly 200 includes two clamping heads and two first driving members. The two first driving members are mounted on both sides of the base 100, and each first driving member is drivenly connected to a clamping head to drive the clamping head to rotate. Each clamping head is used to clamp both ends of the mandrel 2, so that the mandrel 2 maintains stable rotation during the winding process. The shearing assembly is mounted on the feeding seat 10 of the feeding device and is used to cut the metal wire after the spring is formed. The collecting assembly is located below the base 100 and is used to collect the formed springs and guide them to the unloading position. The coordinated operation of the above components constitutes a complete automated spring winding production system.

[0075] To further illustrate the integrity and inventiveness of this invention, the following is now combined with... Figure 1 to Figure 2 The complete working process of the endoscope spring winding equipment is described to clarify the synergistic relationship between the various components of the feeding device and the winding host 100, especially the multiple key functions played by the support components and their support blocks 13 in the feeding device.

[0076] In the initial state of the equipment, the two ends of the mandrel 2 are firmly clamped by the clamping heads on the left and right sides of the equipment, respectively. The two first driving components synchronously drive the clamping heads to rotate, thereby causing the mandrel 2 to rotate stably around its own axis. At the same time, the first driving component of the feeding device is activated, driving the raw material drum 20 to release the slender raw material (metal wire). Under the guidance and tension control of the guide wheel and tension wheel, the slender raw material passes through the guide tube 31 on the guide block 30 and is precisely conveyed to the winding start position of the mandrel 2. The starting end of the metal wire is locked into the locking hole on the end face of the clamping head.

[0077] As the mandrel 2 continues to rotate, the metal wire is tightly wound around the outer surface of the mandrel 2 under the action of traction, gradually forming a spiral endoscope spring from the left side of the device to the right side. During this winding process, the controller drives the feeding movement drive assembly, which moves the entire feeding device (including the feeding seat 10, guide block 30, support components, etc.) along the guide slide rail on the base 100, synchronously moving to the right with the winding and forming position of the metal wire. At the same time, the second drive assembly installed in the feeding seat 10 works independently, driving the guide block 30 to move slightly back and forth in a direction perpendicular to the axis of the mandrel 2, so as to dynamically adjust the lateral position of the guide tube 31 and ensure that the metal wire always enters the winding area at the optimal angle. The driving actions in these two directions are decoupled and coordinated.

[0078] Most importantly, during the entire winding process, the support component carried by the feeding device plays the first crucial role—providing follow-up support for the rotating mandrel 2. Specifically, the support arm 12 and the support block 13 move synchronously with the feeding seat 10, and the through hole on the support block 13 is always fitted onto the mandrel 2. This through hole, as an auxiliary support point for the mandrel 2, effectively suppresses radial runout and flexural deformation caused by the excessive length-to-diameter ratio of the mandrel 2 during high-speed rotation, ensuring the smooth rotation of the mandrel 2. This provides a stable forming benchmark for the precision winding of the metal wire, which is the core guarantee for achieving high precision and high consistency of the endoscope spring.

[0079] Once the spring is wound to the preset length, the control system instructs the first drive assembly to stop feeding, and the first drive component stops driving the mandrel 2 to rotate. Subsequently, the shearing assembly mounted on the feeding device actuates, and the first drive cylinder drives the shearing blade to cut the metal wire, completing the spring forming process.

[0080] Next comes the unloading process. The clamping head on the right side of the equipment moves horizontally to the right a certain distance under the drive of the corresponding drive mechanism, while the clamping head on the left side of the equipment releases its grip on the left end of the mandrel 2. At this point, the left end of the mandrel 2 is free, while the right end remains clamped. Then, the loading movement drive assembly drives the entire loading device to move to the left along the guide rail. During this process, the second key function of the support block 13—scraping the formed endoscope spring off the mandrel 2—is demonstrated. As the loading device moves to the left, the edge of the through hole of the support block 13 abuts against the right end face of the wound spring, pushing the spring to slide to the left along the axis of the mandrel 2, ultimately scraping the entire spring smoothly off the left end opening of the mandrel 2. The detached spring falls into the collection assembly below, is guided by the collection guide, and transported to the unloading position. This scraping method, which relies on the movement of the support block 13, is simpler in structure and smoother in action compared to traditional push rod or gripper-type demolding mechanisms, effectively avoiding secondary damage or deformation of the spring during the demolding process.

[0081] After the spring is scraped off, the through hole of the support block 13 remains fitted onto the mandrel 2. Subsequently, the clamping head on the right side of the device moves the mandrel 2 to the left to reset. During this process, the support block 13 continues to move to the left with the feeding device, playing a third crucial role—guiding and pushing the left end of the mandrel 2 back into the left clamping head. Because the through hole of the support block 13 is clearance-fitted with the outer diameter of the mandrel 2, it provides precise guidance for the mandrel 2 during its movement, ensuring that the left end of the mandrel 2 accurately aligns with the clamping hole of the left clamping head and pushes it into the clamping head. Then, the left clamping head performs a clamping action, and both ends of the mandrel 2 are once again stably clamped and taut, restoring the device to its initial state and preparing for the next winding cycle.

[0082] As can be clearly seen from the above description of the complete working process, the technical solution of this invention is not a simple stacking of components, but a highly integrated and synergistic organic whole. In particular, the support component and its support block 13 in the feeding device, although simple in structure, undertake three key tasks: follow-up support, demolding scraping, and resetting guidance, spanning the three main working stages of winding, unloading, and resetting. This ingenious "one device, multiple uses" design greatly simplifies the overall structure of the equipment, reduces the number of independent actuators, lowers the complexity of the control system, and significantly improves the automation level, reliability, and production efficiency of the equipment. The dynamic guiding function of the feeding device combined with the multifunctionality of the support component jointly ensures the rapid, stable, and high-quality production of endoscope springs with extremely high elongation-to-slenderness ratios from raw materials to finished products, perfectly meeting the medical device industry's manufacturing needs for high-precision, high-efficiency spring tubes.

[0083] To accurately achieve the aforementioned complex working process, the endoscope spring winding device also includes a controller. This controller is electrically connected to the mandrel clamping assembly 200, the feeding device (including a first drive assembly, a second drive assembly, and a feeding movement drive assembly that drives the entire feeding device to move axially), the shearing assembly, the stabilizer, and the collecting assembly. It is used to centrally coordinate and control each actuator according to a preset program and real-time feedback signals. It should be clarified that in this device, there are two independent drive systems responsible for movement in different directions: one is the feeding movement drive assembly that drives the entire feeding device to move axially along the guide rail on the base 100, used to achieve synchronous movement of the feeding device and the support block 13 with the winding and forming position; the other is the second drive assembly installed in the inner cavity of the feeding seat 10, used only to drive the guide block 30 to reciprocate in a direction perpendicular to the mandrel 2 axis, so as to dynamically adjust the lateral feeding position of the slender raw material.

[0084] During the winding stage, the controller sends synchronous rotation commands to the two first drive components of the mandrel clamping assembly 200, driving the mandrel 2 to rotate stably at a set speed ω. Simultaneously, the controller calculates the required axial feed speed v for the feeding device based on the set speed ω and the preset pitch p of the spring to be wound, satisfying the relationship v = (ω × p) * 60, where ω is the mandrel speed (r / min) and p is the spring pitch (mm / r). The controller sends this axial feed speed v as a command to the feeding movement drive assembly, driving the entire feeding seat 10, along with the guide block 30, guide tube 31, support arm 12, and support block 13 mounted on it, to move synchronously to the right along the guide rail and the winding and forming position of the metal wire. During this process, the support block 13 always moves with the forming point, providing continuous follow-up support for the rotating mandrel 2. This is the core control element ensuring the stability of the mandrel 2 and the uniformity of the spring pitch.

[0085] Simultaneously, the controller independently controls the second drive assembly (guide motor) installed within the feeding seat 10, causing it to drive the guide block 30 to reciprocate slightly in a direction perpendicular to the axis of the mandrel 2 according to preset path correction parameters or position offset signals fed back by sensors. This action aims to adjust the lateral position of the slender raw material output from the guide tube 31 in real time, ensuring that the metal wire always enters the winding area of ​​the mandrel 2 with the optimal posture and angle, preventing deviation from the predetermined trajectory due to swaying caused by high-speed conveying. In addition, the controller also regulates the output speed of the first drive assembly (feeding motor), dynamically balancing the linear velocity of the slender raw material released with the linear velocity consumed by the winding of the mandrel 2, and performs closed-loop adjustment in conjunction with the feedback signal from the tension sensor to maintain constant material tension. Through the above independent and coordinated control of the three dimensions of axial follow-up, radial guidance, and feeding rate, precise spatiotemporal matching between the feeding action and the winding action of the mandrel 2 is achieved.

[0086] During the cutting and unloading reset phase, when the controller detects that the winding length or number of turns has reached a preset value, it first sends a stop command to the first drive assembly to interrupt the feeding, and then sends a stop command to the first drive component of the mandrel clamping assembly 200. Immediately afterwards, the controller triggers the shearing assembly to cut the metal wire. During the unloading phase, the controller sends a rightward movement command to the drive component corresponding to the right clamping head of the equipment, and simultaneously sends a release command to the left clamping head. Afterward, the controller drives the feeding movement drive assembly to reverse, moving the entire feeding device and support block 13 to the left, using the edge of the through hole in the support block 13 to smoothly scrape the forming spring off the mandrel 2. After the spring falls off, the controller again coordinates the right clamping head to move left and reset, and uses the guiding action of the support block 13 to accurately push the left end of the mandrel 2 into the left clamping head, finally sending a clamping command to complete the re-clamping of the mandrel 2. Throughout the unloading reset process, the second drive assembly can be in a standby or reset state and does not participate in axial movement, while the position of its driven guide block 30 can be pre-adjusted according to the starting position of the next winding.

[0087] In summary, by decoupling and coordinating the functions of the feeding motion drive component (axial follow-up) and the second drive component (radial guidance) through the controller, this equipment clearly separates the two functional levels of overall follow-up support and local dynamic guidance. This ensures both the precise following of the feeding device for long-stroke winding and the precise dynamic correction of the infeed point. Under the unified timing scheduling of the controller, each motion mechanism has a clear division of labor and does not interfere with each other, with their motion parameters being interconnected. This fundamentally improves the forming accuracy of the endoscope spring, the stability of equipment operation, and the level of automation from the control perspective.

[0088] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An endoscope spring winding device, characterized in that, The endoscope spring winding device includes: Base; A mandrel clamping assembly includes two clamping heads and two first driving members, the two first driving members being mounted on the base and located on both sides of the base; each first driving member is kinetically connected to one of the clamping heads for driving the clamping head to rotate; each clamping head is used to clamp a mandrel; and A feeding device includes a feeding base, a raw material rotating drum, a first driving assembly, a guide block, and a second driving assembly. The feeding base is slidably connected to the base and has an inner cavity. The raw material rotating drum is rotatably connected to the feeding base and is used to carry and release slender raw materials. The first driving assembly is drivenly connected to the raw material rotating drum and is used to drive the raw material rotating drum to rotate and output slender raw materials. The guide block is slidably connected to the outer wall of the feeding base and is located above the raw material rotating drum. The guide block has a guide tube for the slender raw materials to pass through. The second driving assembly includes a guide motor and a transmission mechanism. The guide motor is installed in the inner cavity, and the transmission mechanism is connected to the output end of the guide motor and the guide block, and is used to drive the guide block to reciprocate along the conveying direction of the slender raw materials. The second driving assembly operates independently of the first driving assembly.

2. The endoscope spring winding device as described in claim 1, characterized in that, The transmission mechanism includes a gear and a rack. The outer wall of the loading seat is provided with a mounting platform. The gear is mounted on the mounting platform. The output shaft of the guide motor passes through the mounting platform and is connected to the gear. The rack is located at the bottom of the guide block, and the gear meshes with the rack through an opening in the mounting platform.

3. The endoscope spring winding device as described in claim 2, characterized in that, The guide block has a groove at one end away from the rack, and a fastener or snap-fit ​​structure is provided in the groove. The guide tube is embedded in the groove by the fastener or the snap-fit ​​structure.

4. The endoscope spring winding device as described in claim 2, characterized in that, The mounting platform is provided with two support arms on one side adjacent to the guide block. The two support arms extend along the conveying direction of the slender raw material and are respectively located on both sides of the guide block. The two support arms are provided with support blocks at the ends away from the mounting platform, and the support blocks are provided with support grooves for supporting the rotating mandrel.

5. The endoscope spring winding device as described in claim 4, characterized in that, The support arm includes a fixed sleeve and a movable rod. One end of the fixed sleeve is connected to the mounting platform, and one end of the movable rod is slidably inserted into the fixed sleeve. The other end of the movable rod is connected to the support block. The inner wall of the fixed sleeve is provided with a threaded hole, and a locking screw is provided in the threaded hole. The end of the locking screw abuts against the outer wall of the movable rod to lock the extension length of the movable rod.

6. The endoscope spring winding device as described in claim 1, characterized in that, The inner wall of the guide tube is provided with a wear-resistant coating, or the guide tube is made of wear-resistant ceramic material.

7. The endoscope spring winding device as described in claim 1, characterized in that, The feeding device also includes guide wheels and multiple tensioning wheels, which are rotatably connected to the feeding seat and located between the raw material drum and the guide block, for guiding and tensioning slender raw materials.

8. The endoscope spring winding device as described in claim 1, characterized in that, The endoscope spring winding device also includes a sensor installed on the feeding seat and located between the raw material drum and the guide block, for detecting the tension or position of the slender raw material.

9. The endoscope spring winding device as described in claim 1, characterized in that, The first driving component is a feeding motor, and the output shaft of the feeding motor is coaxially connected to the rotating shaft of the raw material drum or connected through a belt drive mechanism.

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