Dehairing assembly for flexible shaft machining

Abstract

The invention discloses an unhairing assembly for flexible shaft machining, and relates to the technical field of metal unhairing treatment.The unhairing assembly comprises an unhairing machine body, a driving module is installed in the unhairing machine body and comprises a driving motor, a flexible shaft body is divided into an inner layer and an outer layer, and an inner-layer steel wire is spirally wound on the inner surface of a center column; the outer-layer steel wire and the inner-layer steel wire are spirally wound on the outer surface of the central column in the opposite directions, the motion trail of the polish-brush wheel during revolution is matched with the spiral trail of the outer-layer steel wire of the flexible shaft body, and the attaching degree of the unhairing mechanism and the surface of the flexible shaft is enhanced. The friction positions of the outer ends of the bristles of the polish-brush wheel and the outer-layer steel wire are matched with the spiral track, so that the polish-brush wheel is always kept in the optimal contact state with the surface of the steel wire in the revolution process, the polish-brush wheel can be kept attached to the convex part or the concave part of the outer-layer steel wire, the continuity and the stability of the unhairing operation are ensured, and the unhairing efficiency is improved. And the collision abrasion between the polish-brush wheel and the flexible shaft main body is reduced.

Description

Technical Field

[0001] This invention relates to the field of metal deburring technology, specifically to a deburring assembly for flexible shaft processing. Background Technology

[0002] Existing deburring components for flexible shaft machining transmit power through a motor-driven flexible shaft, enabling the end tool to rotate at high speed for deburring. Its core consists of a drive module, connecting device, and other components. The flexible shaft adopts a wire winding structure, which has the characteristics of good flexibility and stable torque transmission. The end tool can be selected from different forms such as nylon brush wheel, rubber grinding head, or flap wheel according to processing requirements, and is suitable for deburring complex curved surfaces and internal cavities.

[0003] However, existing technologies still have the following drawbacks in practical applications: 1. Compared to existing technologies, metal flexible shaft deburring equipment generally uses a single rotating abrasive wheel. Since the abrasive wheel only rotates around its own axis, it lacks the ability to travel along the spiral trajectory of the flexible shaft. Furthermore, it does not consider the complex structure formed by the reverse spiral winding of the inner and outer layers of steel wire on the flexible shaft. This results in a low degree of contact between the abrasive wheel's movement trajectory and the surface of the flexible shaft, making it difficult to cover all areas of the steel wire surface. Therefore, this single rotating abrasive wheel working method leads to many problems in the flexible shaft deburring process. On the one hand, for the outer layer spirally wound... The steel wires in the flexible shaft are difficult to clean thoroughly with a grinding wheel, which can only cover a localized area. Metal burrs within the spiral structure cannot be completely removed, easily leading to missed areas and uneven deburring. Furthermore, the lack of a staggered grinding effect from the rotational motion makes it difficult for the grinding wheel to penetrate the gaps in the inner layer of steel wires to remove residual metal. This results in the inner and outer surfaces of the flexible shaft failing to achieve a smooth finish, affecting not only its appearance but also its performance and lifespan due to residual metal burrs, ultimately reducing the overall quality and reliability of the product.

[0004] 2. Compared to existing technologies, deburring equipment often uses unidirectional cleaning or simple blowing methods. The movement trajectory of the cleaning components does not match the thread structure of the flexible shaft, making it difficult to penetrate deep into the thread gaps. At the same time, the airflow treatment system is usually a linear or simple jet design, and the airflow cannot flow along the spiral trajectory of the flexible shaft thread, failing to effectively blow out impurities in the gaps. In addition, existing equipment lacks targeted adsorption or interception mechanisms. Even if impurities are loosened, they can easily re-adhere to the flexible shaft surface or remain in the gaps, making it difficult to completely remove them. Impurities remaining in the gaps of the metal flexible shaft thread will have a serious negative impact on subsequent deburring processes. The presence of impurities will interfere with the normal contact between the deburring tool and the flexible shaft surface, causing uneven force on the grinding wheel during grinding, resulting in local over-grinding or under-grinding, reducing the accuracy and uniformity of the deburring process. At the same time, impurities in the gaps may embed into the flexible shaft surface under grinding pressure, forming new protrusions or damage, increasing the difficulty of subsequent cleaning. Furthermore, residual impurities will also accelerate the wear of the grinding wheel, shorten its service life, and increase equipment maintenance costs.

[0005] Therefore, in view of this, the present invention proposes a deburring component for flexible shaft processing to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a deburring assembly for flexible shaft machining, thereby resolving the technical issues raised in the background section.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a deburring assembly for processing flexible shafts, used to deburr the body of a flexible shaft, including a deburring machine body, a drive module installed inside the deburring machine body, the drive module including a drive motor, the flexible shaft body being divided into an inner layer and an outer layer, the inner layer steel wire being spirally wound on the inner surface of a central column, and the outer layer steel wire being spirally wound on the outer surface of the central column in the opposite direction to the inner layer steel wire.

[0008] The dehairing machine body is equipped with a dehairing mechanism inside. The dehairing mechanism includes a transmission component and a transmission group. A bearing base plate is installed on the side wall of the transmission component. Grinding brush wheels are symmetrically installed on the side wall of the transmission group. Hard bristles are fixed on the circumferential wall of the grinding brush wheel (24).

[0009] When the drive module starts running, it will synchronously drive the transmission components and transmission group. Under the transmission action of the transmission group, the brush wheel will keep rotating. At the same time, under the rotation action of the transmission components, the brush wheel will synchronously rotate as a whole while rotating on its own axis. When the brush wheel revolves, the movement trajectory of the bristles on the circumferential wall matches the spiral trajectory of the outer steel wire of the flexible shaft body during linear motion.

[0010] In addition, the bearing base plate and the brush wheel are controlled independently by the transmission components and transmission groups, respectively. The user can dynamically adjust whether the rotation direction and revolution direction of the brush wheel are consistent according to the direction of the outer steel wire of the flexible shaft body and the overall material of the flexible shaft body.

[0011] Furthermore, the transmission component is composed of a drive gear and a driven gear. The drive gear is installed on the output shaft end of the drive motor, and the driven gear is fixedly connected to the support base plate. The transmission assembly is composed of a belt and a pulley. The pulley is fixedly connected to the brush wheel, and the brush wheel is rotatably connected to the support base plate. The brush wheel is in close contact with the flexible shaft body.

[0012] Furthermore, a processing chamber is installed on the outside of the brush wheel. The processing chamber is movably connected to the side wall of the dehairing machine body. A sliding plate is rotatably connected inside the processing chamber corresponding to the bottom of the brush wheel. A groove is opened on the surface of the dehairing machine body at the center position corresponding to the bottom of the sliding plate.

[0013] Furthermore, an auxiliary mechanism is provided inside the main body of the hair removal machine. The auxiliary mechanism is located on the conveying path of the flexible shaft body. The auxiliary mechanism includes a compressor. The output end of the compressor is connected to a connecting cylinder. The side of the connecting cylinder is connected to an extension tube and an expansion tube.

[0014] Furthermore, a guide column is fixedly connected to the inner wall of the connecting cylinder, and a through groove is provided on the inner wall of the connecting cylinder. The guide column and the flexible shaft body are slidably connected through the through groove.

[0015] Furthermore, the connecting cylinder is funnel-shaped with its narrow end close to the extension tube. The gap between the connecting cylinder and the guide column provides flow space for the airflow output by the compressor, and the airflow direction output by the compressor is opposite to the conveying direction of the flexible shaft body.

[0016] Furthermore, a partition plate is fixedly connected to the outer wall of the guide column, the partition plate is located at the center of the interval area, and several fan-shaped plates are uniformly fixedly connected to the inner wall of the extension tube near the end of the connecting cylinder, and the several fan-shaped plates are all designed to be inclined.

[0017] Furthermore, a curved track is fixedly connected to the inner wall of the extension tube. The curved track is threaded in shape, and the pitch of the curved track is greater than the pitch of the outer layer of steel wire wound around the flexible shaft body.

[0018] Furthermore, the connection point between the curved track and the expansion tube has a gradually expanding shape, and the diameter ratio between the expansion tube and the extension tube is two to one.

[0019] Furthermore, the inner wall of the expansion tube is fixedly connected with several adsorption shafts, the adsorption shafts are made of permanent magnet material, and the several adsorption shafts are distributed in a spiral shape.

[0020] Compared with the prior art, the beneficial effects of the present invention are: (1) For the flexible shaft body with the outer steel wire spirally wound, the single rotating grinding wheel can only cover the local surface and it is difficult to fully process the metal burrs in the spiral structure. However, this device relies on the revolution to make the grinding wheel travel along the spiral trajectory, continuously contact and grind the irregular parts of the outer steel wire surface, avoiding local omissions. At the same time, the grinding force generated by the rotation and the travel trajectory of the revolution are combined to form an interlaced grinding effect, which makes the cutting and trimming of burrs more thorough. It is more suitable for the complex surface structure formed by the reverse spiral winding of the inner steel wire, deeply cleaning the residual metal in the steel wire pitch gap, and ensuring that the inner and outer surfaces of the flexible shaft are flat and smooth.

[0021] Most importantly, the grinding brush wheel exhibits a distinct feature compared to existing technologies. The movement trajectory of the brush wheel bristles during revolution matches the spiral trajectory of the outer steel wire of the flexible shaft body. This design effectively enhances the fit between the deburring mechanism and the surface of the flexible shaft. Due to the spiral winding of the outer steel wire, the opposing position of the grinding brush wheel and the outer steel wire, i.e., the friction contact point between the grinding brush wheel and the outer steel wire, matches the spiral trajectory. This ensures that the grinding brush wheel maintains optimal contact with the steel wire surface throughout its revolution, reducing blind spots in grinding. Whether it is a protrusion or a depression in the outer steel wire, the grinding brush wheel maintains a close fit, ensuring the continuity and stability of the deburring operation. This close fit not only reduces collision wear between the grinding brush wheel and the flexible shaft body but also ensures uniform grinding force, avoiding localized over-grinding or burr residue caused by poor contact. This allows for efficient cleaning of both the inner and outer steel wire surfaces of the flexible shaft body, meeting the requirements of high-precision processing.

[0022] The base plate and the grinding wheel are controlled independently by transmission components and transmission groups, respectively. Users can dynamically adjust the rotation and revolution directions of the grinding wheel according to the direction of the outer steel wire of the flexible shaft body, greatly improving the flexibility and adaptability of the equipment. For flexible shaft bodies with inner and outer steel wires spirally wound in opposite directions, different winding directions require different deburring directions and forces. By flexibly adjusting the rotation and revolution directions, users can precisely control the movement mode of the grinding wheel based on the characteristics of the inner steel wire spiraling inward and the outer steel wire spiraling outward. For example, when the rotation and revolution directions of the grinding wheel are consistent, a stronger grinding force can be formed on the surface of the steel wire with a specific direction, which is suitable for stubborn burr areas; while when the two directions are opposite, sensitive areas can be trimmed in a gentle way, avoiding damage to the steel wire structure. This dynamic adjustment function enables the equipment to adapt to flexible shaft bodies of different specifications and different winding directions, meet diverse deburring needs, improve the versatility and practicality of the equipment, and effectively reduce processing errors caused by differences in flexible shaft structure.

[0023] (2) This device performs pretreatment before dehairing by blowing in a spiral airflow. For the flexible shaft body with the outer layer of steel wire spirally wound, the spiral airflow is highly compatible with the spiral structure of the steel wire. It can penetrate deep into the gaps along the spiral trajectory of the steel wire, effectively blowing away the metal debris, impurities and loose burrs remaining on the surface and in the gaps. The spiral airflow's surrounding characteristics allow every part of the flexible shaft surface to be blown, avoiding the local omissions that may occur when the airflow is blown directly. At the same time, the spiral airflow can generate a certain vortex force, which can loosen the stubbornly attached impurities, making it easier for the subsequent grinding wheel to grind more efficiently. This pretreatment greatly improves the cleanliness of the flexible shaft surface, reduces the workload of the grinding wheel, and improves the overall dehairing efficiency. In addition, the spiral airflow can also play a preliminary cooling role on the flexible shaft surface, preventing the friction from generating excessively high temperatures during the grinding process, which would affect the performance of the flexible shaft material.

[0024] Most importantly, the airflow direction is opposite to the movement direction of the flexible shaft body. The reverse airflow and the movement of the flexible shaft form a relative motion, which can increase the contact time and force between the airflow and the surface of the flexible shaft, and more thoroughly remove surface impurities. When the flexible shaft is conveyed forward, the reverse airflow will form resistance at the front end of the flexible shaft, forcing the impurities on the surface of the flexible shaft to be blown off more easily. Especially for the complex surface structure formed by the reverse spiral winding of the inner steel wire, the reverse airflow can effectively penetrate into the gaps and blow out the internal residual impurities. At the same time, the reverse airflow can also play a certain buffering role, reducing the inertial impact when the flexible shaft is conveyed, making the movement of the flexible shaft more stable when it enters the depilation mechanism, ensuring the stability and uniformity of the contact between the brush wheel and the flexible shaft, avoiding the problem of local over-grinding or incomplete depilation caused by the vibration of the flexible shaft, thereby improving the depilation quality and processing accuracy.

[0025] (3) In order to adapt to the continuous movement of the flexible shaft body, the pitch of the curved track is designed to be greater than the pitch of the outer steel wire winding of the flexible shaft body. On the one hand, it can make the airflow form a more relaxed and extended spiral flow trajectory in the curved track. On the other hand, the spiral airflow with a larger pitch can more fully wrap the surface of the flexible shaft and penetrate into the gap formed by the reverse spiral winding of the outer steel wire, ensuring that the airflow always contacts the flexible shaft in the opposite direction with a stable spiral trend, thereby enhancing the pretreatment effect of the airflow on the surface of the flexible shaft.

[0026] In this process, after the impurities on the pre-treated flexible shaft surface are blown away by the airflow, they will move to the expansion tube area with the airflow. As the diameter of the expansion tube gradually increases, the airflow velocity slows down and the pressure decreases, which weakens the inertia of the impurities in the airflow and makes them dispersed. At this time, the permanent magnet material adsorption shaft can accurately capture these dispersed ferromagnetic impurities, such as metal chips and burrs. Compared with direct adsorption in a strong airflow, the impurities are more easily captured by the adsorption shaft after the airflow weakens, which greatly improves the adsorption efficiency of the impurities and prevents them from re-attaching to the surface of the flexible shaft or entering the subsequent processing stage, thus ensuring the cleanliness and processing accuracy of the flexible shaft after deburring.

[0027] Several adsorption shafts are arranged in a spiral pattern to form an all-round, dead-angle-free impurity adsorption zone. The spirally distributed adsorption shafts can continuously intercept relatively dispersed impurities. This layout ensures that when impurities pass through the expansion tube, there are adsorption shafts acting on them at any angle and position, which greatly improves the adsorption range and adsorption effect, further enhances the ability to encapsulate and adsorb impurities, and provides a cleaner environment for the subsequent processing of the flexible shaft. Attached Figure Description

[0028] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0029] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the processing chamber of the present invention.

[0030] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the main body of the hair removal machine of the present invention.

[0031] Figure 4 This is a side view of the gear set, transmission set, and other components of the present invention.

[0032] Figure 5 This is a three-dimensional structural diagram showing the positional relationship between the hair removal component and the auxiliary component of the present invention.

[0033] Figure 6 This is a three-dimensional structural diagram showing the positional relationship between the main body of the flexible shaft and the auxiliary components of the present invention.

[0034] Figure 7 This is a schematic diagram of the internal three-dimensional structure of the extension tube and expansion tube of the present invention.

[0035] Figure 8 This is an exploded view of the flow guide column and connecting cylinder of the present invention.

[0036] Figure 9 This is a schematic diagram showing the direction of movement of the flexible shaft body and the direction of gas flow from the compressor.

[0037] The diagram is labeled as follows: 1. Main body of the depilatory machine; 11. Drive module; 12. Main body of the flexible shaft.

[0038] 2. Dehairing mechanism; 21. Transmission component; 22. Support base plate; 23. Transmission assembly; 24. Grinding brush wheel; 25. Processing chamber.

[0039] 3. Auxiliary mechanism; 31. Compressor; 32. Connecting cylinder; 33. Guide column; 34. Divider plate; 35. Fan-shaped plate; 36. Extension tube; 37. Curved track; 38. Expansion tube; 39. Adsorption shaft. Detailed Implementation

[0040] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that the structure and working principle of the above-mentioned dehairing machine body 1, drive module 11, flexible shaft body 12 and other components are existing technologies and will not be described in detail here.

[0042] Example 1: Please refer to Figures 1-9 As shown, a deburring assembly for processing flexible shafts is used to deburr the flexible shaft body 12. It includes a deburring machine body 1, and a drive module 11 is installed inside the deburring machine body 1. The drive module 11 includes a drive motor. The flexible shaft body 12 is divided into an inner layer and an outer layer. The inner layer steel wire is spirally wound on the inner surface of the central column, and the outer layer steel wire is spirally wound on the outer surface of the central column in the opposite direction to the inner layer steel wire. A deburring mechanism 2 is provided inside the deburring machine body 1. The deburring mechanism 2 includes a transmission component 21 and a transmission group 23. A bearing base plate 22 is installed on the side wall of the transmission component 21, and a grinding brush wheel 24 is symmetrically installed on the side wall of the transmission group 23. Hard bristles are fixed on the circumferential wall of the grinding brush wheel (24). Specifically, the bristles can be made of fine steel wire or other hard and fine metal wire.

[0043] When the drive module 11 starts running, it synchronously drives the transmission component 21 and the transmission group 23. Under the transmission action of the transmission group 23, the brush wheel 24 is driven to keep rotating. At the same time, under the rotation action of the transmission component 21, the brush wheel 24 is synchronously driven to revolve as a whole while rotating. The movement trajectory of the bristles of the brush wheel 24 during the revolution matches the spiral trajectory of the outer steel wire of the flexible shaft body 12 during linear motion. In addition, the bearing base plate 22 and the brush wheel 24 are controlled independently by the transmission component 21 and the transmission group 23, respectively. The user can dynamically adjust whether the rotation direction and the revolution direction of the brush wheel 24 are consistent according to the direction of the outer steel wire of the flexible shaft body 12 and the overall material of the flexible shaft body 12.

[0044] It should be noted that the transmission component 21 is composed of a combination of a driving gear and a driven gear. The driving gear is installed on the output shaft end of the drive motor, and the driven gear is fixedly connected to the bearing base plate 22. The transmission group 23 is composed of a belt and a pulley. The pulley is fixedly connected to the brush wheel 24, and the brush wheel 24 is rotatably connected to the bearing base plate 22. The brush wheel 24 is in contact with the flexible shaft body 12. A processing chamber 25 is installed on the outside of the brush wheel 24. The processing chamber 25 is movably connected to the side wall of the dehairing machine body 1. The interior of the processing chamber 25 is rotatably connected to a sliding plate corresponding to the bottom of the brush wheel 24. A groove is opened at the center position of the bottom of the sliding plate on the surface of the dehairing machine body 1.

[0045] Specifically, such as Figures 3 to 5 As shown, when the drive motor in the drive module 11 starts running, the drive gear at the output shaft end begins to rotate. The drive gear meshes with the driven gear, thereby driving the driven gear to rotate. Since the driven gear is fixedly connected to the support base plate 22, the support base plate 22 also rotates, which in turn causes the brush wheel 24 mounted on the side wall of the support base plate 22 to begin to revolve as a whole. At the same time, the rotation of the drive motor transmits power through the transmission group 23. The power of the drive motor is transmitted to the pulley via the belt. The pulley is fixedly connected to the brush wheel 24, so the rotation of the pulley drives the brush wheel 24 to rotate on its own axis.

[0046] The grinding wheel 24, during its revolution, moves in a trajectory that matches the spiral trajectory of the outer steel wire of the flexible shaft body 12. Based on the direction and angle of the spiral winding of the outer steel wire of the flexible shaft body 12, when the supporting base plate 22 drives the grinding wheel 24 to revolve, the bristles of the grinding wheel 24, in coordination with its rotation, move relative to the flexible shaft body 12 in an inclined posture along the spiral line. This ensures that during one revolution, the trajectory of the grinding wheel 24 in contact with the flexible shaft body 12 coincides with the spiral trajectory of the outer steel wire, thereby effectively removing burrs from the spiral surface of the outer steel wire of the flexible shaft body 12. During operation, the drive motor rotates continuously and stably, and the drive gear rotates stably accordingly. Through gear transmission, the driven gear and the bearing base plate 22 make circular motion, realizing the revolution of the brush wheel 24. At the same time, the drive motor drives the pulley through belt transmission, thereby making the brush wheel 24 keep rotating. When the brush wheel 24 is in contact with the flexible shaft body 12, it polishes and removes the hair from the surface of the flexible shaft body 12 through the combined motion of rotation and revolution. The waste generated by polishing slides down the slide plate connected to the rotating inside the processing chamber 25 under the action of gravity, and is discharged through the trough on the surface of the dehairing machine body 1.

[0047] Based on Example 1, please refer to Figures 1-9 As shown, the main body 1 of the dehairing machine is equipped with an auxiliary mechanism 3. The auxiliary mechanism 3 is located on the conveying path of the flexible shaft body 12. The auxiliary mechanism 3 includes a compressor 31. The output end of the compressor 31 is connected to a connecting cylinder 32. The side of the connecting cylinder 32 is connected to an extension tube 36 and an expansion tube 38.

[0048] It should be noted that a guide column 33 is fixedly connected to the inner wall of the connecting cylinder 32. A through groove is formed on the inner wall of the connecting cylinder 32. The guide column 33 and the flexible shaft body 12 are slidably connected through the through groove. The connecting cylinder 32 is funnel-shaped, with its narrow end close to the extension tube 36. The gap area formed between the connecting cylinder 32 and the guide column 33 provides flow space for the airflow output by the compressor 31. The airflow direction output by the compressor 31 is opposite to the conveying direction of the flexible shaft body 12. A partition plate 34 is fixedly connected to the outer wall of the guide column 33. The partition plate 34 is located at the center of the gap area. The inner wall of the extension tube 36 is close to the connecting cylinder 32. Several fan-shaped plates 35 are uniformly fixedly connected to one end of the connecting tube 32. The fan-shaped plates 35 are all inclined. A curved track 37 is fixedly connected to the inner wall of the extension tube 36. The curved track 37 is threaded in shape, and the pitch of the curved track 37 is greater than the pitch of the outer layer of steel wire wound on the flexible shaft body 12. The connection between the curved track 37 and the expansion tube 38 is gradually expanding. The ratio of the diameter of the expansion tube 38 to that of the extension tube 36 is 2:1. Several adsorption shafts 39 are fixedly connected to the inner wall of the expansion tube 38. The adsorption shafts 39 are made of permanent magnet material, and the adsorption shafts 39 are distributed in a spiral shape.

[0049] like Figure 9 As shown in the figure, the straight line marks the direction of movement of the flexible shaft body 12, and the curve marks the direction of airflow. Specifically, when the compressor 31 starts, the output airflow is transported to the extension pipe 36 through the connecting cylinder 32. Since the connecting cylinder 32 is funnel-shaped and its narrow end is close to the extension pipe 36, the airflow will be accelerated due to the contraction of the cross-sectional area when passing through the connecting cylinder 32. The guide column 33 is fixed on the inner wall of the connecting cylinder 32, and the gap area formed between it and the connecting cylinder 32 provides flow space for the airflow. The partition plate 34 is located in the center of the gap area, dividing the airflow into left and right streams, causing the airflow to initially form a symmetrical flow trend. The airflow direction is opposite to the delivery direction of the flexible shaft body 12, that is, the airflow flows from the narrow end of the connecting cylinder 32 to the extension pipe 36, while the flexible shaft body 12 moves from the position of the extension pipe 36 to the position of the connecting cylinder 32.

[0050] When the airflow initially forms a symmetrical flow trend inside the connecting cylinder 32 through the partition plate 34 and is accelerated by the cross-sectional area contraction of the guide column 33, it continues to flow past the position of the fan-shaped plate 35. Since several fan-shaped plates 35 are designed with inclination, when the airflow impacts the fan-shaped plate 35 and passes between adjacent fan-shaped plates 35, it will be guided to generate a rotational torque, which will cause the airflow to exhibit a spiral flow trend. At the same time, the curved track 37 on the inner wall of the extension tube 36 is threaded, and its pitch is greater than the pitch of the outer layer of steel wire wound on the flexible shaft body 12. Therefore, when the airflow with a spiral trend flows along the curved track 37, the spiral motion is further strengthened by the constraint of the threaded structure, forming a stable spiral airflow.

[0051] When the spiral airflow flows within the extension tube 36, its rotation direction is opposite to the spiral direction of the outer steel wire of the flexible shaft body 12, specifically as follows: Figure 9 As shown in the enlarged section, when the airflow contacts the outer wall of the flexible shaft body 12, the spiral airflow will penetrate deep along the spiral gap of the steel wire. Through the shearing force and impact force of the airflow, the burrs, impurities and other debris in the gap are blown away from the surface of the flexible shaft body 12. The pitch of the spiral airflow is greater than the pitch of the steel wire winding, which can ensure that the airflow covers the entire spiral trajectory of the steel wire during the flow process and avoids cleaning blind spots.

[0052] When the airflow carrying impurities enters the expansion tube 38, the airflow speed drops sharply because the diameter of the expansion tube 38 is twice that of the extension tube 36. The impurities separate from the airflow due to inertia. The adsorption shaft 39 on the inner wall of the expansion tube 38 is made of permanent magnets and is distributed in a spiral shape. When the impurities (mostly metal burrs) pass by with the airflow, they will be firmly attracted by the permanent magnet adsorption shaft 39, thereby achieving the collection of impurities. The purified airflow is discharged from the end of the expansion tube 38, completing the entire cleaning and adsorption process.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A deburring assembly for processing flexible shafts, used for deburring a flexible shaft body (12), comprising a deburring machine body (1), wherein a drive module (11) is installed inside the deburring machine body (1), characterized in that: The drive module (11) includes a drive motor. The flexible shaft body (12) is divided into an inner layer and an outer layer. The inner layer steel wire is spirally wound on the inner surface of the central column, and the outer layer steel wire is spirally wound on the outer surface of the central column in the opposite direction to the inner layer steel wire. The dehairing machine body (1) is equipped with a dehairing mechanism (2). The dehairing mechanism (2) includes a transmission component (21) and a transmission group (23). The side wall of the transmission component (21) is equipped with a bearing base plate (22). The side wall of the transmission group (23) is symmetrically equipped with a brush wheel (24). Hard bristles are fixed on the circumferential wall of the brush wheel (24). When the drive module (11) is started... During operation, the transmission component (21) and the transmission group (23) will be driven synchronously. Under the transmission action of the transmission group (23), the brush wheel (24) will be driven to rotate. At the same time, under the rotation action of the transmission component (21), the brush wheel (24) will be driven to revolve as a whole while rotating. When the brush wheel (24) revolves, the movement trajectory of the bristles on the circumferential wall matches the spiral trajectory of the outer steel wire of the flexible shaft body (12) during the linear motion. The bearing base plate (22) and the brush wheel (24) are controlled separately by the transmission component (21) and the transmission group (23) to dynamically adjust the rotation direction and the revolution direction of the brush wheel (24).

2. The deburring assembly for flexible shaft machining according to claim 1, characterized in that: The transmission component (21) is composed of a combination of a driving gear and a driven gear. The driving gear is installed on the output shaft end of the drive motor, and the driven gear is fixedly connected to the bearing base plate (22). The transmission group (23) is composed of a belt and a pulley. The pulley is fixedly connected to the brush wheel (24), and the brush wheel (24) is rotatably connected to the bearing base plate (22). The brush wheel (24) is in close contact with the flexible shaft body (12).

3. The deburring assembly for flexible shaft machining according to claim 1, characterized in that: A processing chamber (25) is installed on the outside of the brush wheel (24). The processing chamber (25) is movably connected to the side wall of the dehairing machine body (1). A sliding plate is rotatably connected inside the processing chamber (25) corresponding to the bottom of the brush wheel (24). A groove is opened on the surface of the dehairing machine body (1) at the center position corresponding to the bottom of the sliding plate.

4. The deburring assembly for flexible shaft machining according to claim 1, characterized in that: The dehairing machine body (1) is provided with an auxiliary mechanism (3) inside. The auxiliary mechanism (3) is located on the conveying path of the flexible shaft body (12). The auxiliary mechanism (3) includes a compressor (31). The output end of the compressor (31) is connected to a connecting cylinder (32). The side of the connecting cylinder (32) is connected to an extension tube (36) and an expansion tube (38).

5. A deburring assembly for machining a flexible shaft according to claim 4, characterized in that: The inner wall of the connecting cylinder (32) is fixedly connected to a guide column (33), and the inner wall of the connecting cylinder (32) is provided with a through groove. The guide column (33) and the flexible shaft body (12) are slidably connected through the through groove.

6. A deburring assembly for machining a flexible shaft according to claim 4, characterized in that: The connecting cylinder (32) is funnel-shaped, with its narrow end close to the extension tube (36). The gap between the connecting cylinder (32) and the guide column (33) provides flow space for the airflow output by the compressor (31), and the airflow direction output by the compressor (31) is opposite to the conveying direction of the flexible shaft body (12).

7. A deburring assembly for machining a flexible shaft according to claim 5, characterized in that: The outer wall of the guide column (33) is fixedly connected to a partition plate (34), which is located at the center of the interval area. The inner wall of the extension tube (36) is uniformly fixedly connected to a number of fan-shaped plates (35) near the end of the connecting cylinder (32), and the number of fan-shaped plates (35) are all inclined.

8. A deburring assembly for machining a flexible shaft according to claim 4, characterized in that: The inner wall of the extension tube (36) is fixedly connected to a curved track (37), which is threaded in shape and the pitch of the curved track (37) is greater than the pitch of the outer steel wire of the flexible shaft body (12).

9. A deburring assembly for machining a flexible shaft according to claim 8, characterized in that: The curved track (37) and the expansion tube (38) are connected at a gradually expanding shape, and the diameter ratio of the expansion tube (38) to the extension tube (36) is two to one.

10. A deburring assembly for machining a flexible shaft according to claim 4, characterized in that: The inner wall of the expansion tube (38) is fixedly connected with several adsorption shafts (39), the adsorption shafts (39) are made of permanent magnet material, and the several adsorption shafts (39) are distributed in a spiral shape.

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