A circumferential drive assembly and cutting device

Abstract

The application relates to the technical field of cutting machine tools, in particular to a circumferential driving assembly and a cutting device, which comprises a sliding table, a base and a shell, the sliding table is provided with a sliding cooperation surface and a first protruding part, the first protruding part is provided with an avoiding groove and a first abutting surface, the base is provided with a second protruding part, one side of the second protruding part is provided with a second abutting surface, the other side of the second protruding part is provided with a rotary driving module, the second protruding part is provided with a through hole, the shell is provided with a third abutting surface, a second mounting hole and a mounting part, the second mounting hole is used for penetrating a vibrating shaft, and the free end of the vibrating shaft is provided with a cutter. The application effectively reduces the cumulative error of the cutter rotating axis by shortening the precision transmission chain and optimizing the structure layout, greatly improves the blade direction regulation and control precision, finally improves the product cutting and forming quality, simultaneously reduces the assembly and maintenance difficulty, is more beneficial to the miniaturization design of the cutting equipment, and adapts to the application requirement of high-precision numerical control cutting.

Description

Technical Field

[0001] This application relates to the field of cutting machine tool technology, and in particular to a circumferential drive assembly and a cutting device. Background Technology

[0002] CNC cutting, through digital modeling and programming, controls a vibrating blade to move along a preset path on the workpiece, quickly completing the cutting and shaping of products without the need for custom-made dies. Furthermore, by simply changing the tool's movement along the preset path, a single cutting machine can process and produce products of various sizes and models without replacing the molds.

[0003] To ensure the cutting quality of the product, when controlling the movement of the cutting tool along the preset path on the blank, it is also necessary to adjust the cutting edge direction of the tool to correspond with the tool's travel direction in a timely manner. This requires the cutting equipment components to have an xy plane drive module (to control the movement of the cutting tool in the xy plane), a vibration drive module (to control the vibration of the cutting tool along the z-axis), and a rotary drive module to regulate the rotation of the cutting tool around the z-axis in order to adjust the cutting edge direction in a timely manner. However, due to the limitations of the existing rotary drive module and the connection structure of the cutting tool, it is very easy to have poor cutting edge direction control accuracy, resulting in the product's cutting and forming quality being less than expected. Summary of the Invention

[0004] This application provides a circumferential drive component and a cutting device, which can at least solve the problem of poor accuracy in blade direction control and improve the quality and efficiency of product cutting and forming.

[0005] Specifically, in a first aspect, this application provides a circumferential driving component, comprising: A slide table, wherein the slide table is provided with a sliding mating surface and a first protrusion, the sliding mating surface is used to slide with a slide rail, and the first protrusion is provided with a relief groove and a first abutting surface, the first abutting surface being perpendicular to the sliding mating surface; A base is provided with a second protrusion. A second abutment surface is provided on one side of the second protrusion, which abuts against a first abutment surface. A rotary drive module is provided on the other side of the second protrusion. A through hole is provided on the second protrusion, through which the output shaft of the rotary drive module passes. A clearance groove is provided to avoid the output shaft of the rotary drive module. An annular groove and a first mounting hole are provided on the base. The annular groove and the second protrusion are located on opposite sides of the base. The annular groove is perpendicular to the second abutment surface. An annular tooth is rotatably sleeved on the annular groove. The axis of the first mounting hole is parallel to the second abutment surface. A transmission component passes through the first mounting hole. The output shaft of the rotary drive module is connected to the annular tooth through the transmission component. The housing has a third abutment surface, a second mounting hole, and a mounting part. The third abutment surface abuts against an annular tooth, and the housing is connected to the annular tooth through the third abutment surface. The mounting part is used to mount a vibration drive module. The axis of the second mounting hole is perpendicular to the third abutment surface. The second mounting hole is used to pass through a vibration shaft. The vibration shaft and the second mounting hole are axially slidingly fitted. A cutter is provided at the free end of the vibration shaft. The fixed end of the vibration shaft is used for transmission connection with the vibration drive module, so as to realize that the vibration drive module drives the vibration shaft to reciprocate along the axis of the second mounting hole.

[0006] Secondly, this application provides a cutting device, including the aforementioned circumferential drive assembly.

[0007] The technical solution adopted in this application can achieve the following beneficial effects: This application effectively reduces the cumulative error of the tool rotation axis by shortening the precision transmission chain and optimizing the structural layout, which greatly improves the accuracy of the cutting edge direction control and ultimately improves the product cutting and forming quality. At the same time, it reduces the difficulty of assembly and maintenance, and is also more conducive to the miniaturization design of cutting equipment, so as to meet the application requirements of high-precision CNC cutting. Attached Figure Description

[0008] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0009] In the attached diagram: Figure 1 This is a schematic diagram of the cutting device disclosed in the embodiments of this application; Figure 2 This is a schematic diagram of the connection structure between the circumferential drive component and the y-axis sliding track disclosed in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the circumferential drive component disclosed in the embodiments of this application; Figure 4 This is a schematic diagram of the circumferential drive component disclosed in an embodiment of this application from another perspective; Figure 5 This is a schematic diagram of the connection structure between the slide and the base disclosed in an embodiment of this application; Figure 6 This is an exploded view of the base and housing (partial housing section) disclosed in the embodiments of this application; Figure 7 This is a front view of the base and housing (partial housing section) disclosed in the embodiments of this application; Figure 8 for Figure 7 Sectional view along line AA; Figure 9This is a schematic diagram of the connection structure between the base and the rotation drive module disclosed in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of the slide table disclosed in the embodiments of this application; Figure 11 This is a schematic diagram of the structure of the base disclosed in the embodiments of this application.

[0010] In the figure, 10 is the x-axis sliding rail; 20 is the y-axis sliding rail; 100 is the slide table; 110 is the sliding mating surface; 120 is the first protrusion; 121 is the clearance groove; 130 is the snap-fit ​​groove; 131 is the first abutment surface; 200 is the base; 201 is the third connecting hole; 202 is the first mounting hole; 210 is the second protrusion; 211 is the second abutment surface; 212 is the through hole; 213 is the fourth connecting hole; 214 is the snap-fit ​​part; and 220 is the annular groove. ; 221, Upper groove; 222, Lower groove; 230, Transmission component; 231, Second transmission gear; 232, Third transmission gear; 310, Ring gear; 311, Second connecting hole; 320, Sliding body; 330, Annular cover plate; 331, First connecting hole; 400, Housing; 410, Third abutment surface; 420, Second mounting hole; 500, Rotary drive module; 510, First transmission gear; 600, Vibration shaft; 700, Cutting tool. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0012] In related technologies, to avoid interference with the xy-plane drive module, the vibration drive module and the rotary drive module need to be suspended on the slider on one side (the xy-plane drive module drives the slider to move in the xy-plane). Then, the rotary drive module drives the vibration drive module (controlling the tool to vibrate along the z-axis) and the tool to rotate synchronously around the z-axis. This requires the tool and the xy-plane drive module to be separated by at least the slider, the rotary drive module, and the vibration drive module. The multi-stage transmission connection structure between the slider, the rotary drive module, the vibration drive module, and the tool will affect the rotation axis of the tool at each stage. If the transmission connection structure is not properly assembled or wear occurs during operation, it will cause the rotation axis of the tool to deviate from the z-axis. This will cause the rotary drive module to deviate from the expected direction of the cutting edge control, resulting in the product's cutting quality being less than expected (for example, if the coaxiality error of each stage of the transmission connection structure is 0.05mm, after four stages of transmission, the cumulative radial offset at the tool can reach 0.2mm, corresponding to an angular deviation of about 0.5°~1°, which is enough to cause obvious defects on the product edge in high-precision cutting). It will also increase the difficulty of equipment assembly and maintenance.

[0013] To this end, this application provides a circumferential drive component and a cutting device. By shortening the precision transmission chain and optimizing the structural layout, the cumulative error of the tool rotation axis is effectively reduced, the accuracy of the cutting edge direction control is greatly improved, and the product cutting and forming quality is ultimately improved. At the same time, the assembly and maintenance difficulty is reduced, and it is also more conducive to the miniaturization design of the cutting equipment, which can meet the application requirements of high-precision CNC cutting, as shown in the following embodiments.

[0014] Example This embodiment provides a cutting device, such as... Figures 1-3 As shown, the device includes an x-axis sliding rail 10, a y-axis sliding rail 20, and a circumferential drive assembly. The y-axis sliding rail 20 and the x-axis sliding rail 10 are slidably engaged along the x-axis direction, and the circumferential drive assembly is slidably engaged with the y-axis sliding rail 20 along the y-axis direction. The circumferential drive assembly includes a rotary drive module 500 and a vibration drive module. The vibration drive module drives the cutter 700 to vibrate along the z-axis direction, and the rotary drive module 500 drives the vibration drive module and the cutter 700 to rotate around the z-axis to adjust the cutting edge of the cutter 700. Thus, during the working process, the blank can be fixed on the xy plane. First, the vibration drive module controls the cutter 700 to vibrate along the z-axis direction. Then, based on the coordinated operation of the x-axis sliding rail 10 and the y-axis sliding rail 20, the cutter 700 moves along a preset trajectory on the xy plane to cut the blank. With the rotary drive module 500 controlling the cutting edge of the cutter 700 to adaptively turn, the blank can be cut and processed into shape quickly and accurately.

[0015] The structure in which the tool 700 moves along a preset trajectory in the xy plane by the coordinated cooperation of the x-axis sliding rail 10 and the y-axis sliding rail 20 is existing technology. Specifically, a y-axis drive module and an x-axis drive module can be set up. The x-axis drive module drives the y-axis drive module and the circumferential drive component to move synchronously along the x-axis direction on the x-axis sliding rail 10, and the y-axis drive module drives the circumferential drive component to move along the y-axis direction on the y-axis sliding rail 20. This enables the tool 700 on the circumferential drive component to move along the preset trajectory in the xy plane. The x-axis drive module, y-axis drive module, vibration drive module, and rotary drive module 500 are all existing technologies and can be any one of a motor, cylinder, or hydraulic cylinder. Those skilled in the art can choose the appropriate type according to actual processing requirements, which will not be elaborated here. The sliding cooperation between the x-axis sliding rail 10, the y-axis sliding rail 20, and the circumferential drive component is existing technology. Specifically, it can be a linear guide rail and slider assembly, a rack and pinion gear structure, or a ball screw and nut pair structure, used to achieve high-precision, low-friction linear motion, which will not be elaborated here. The blank can be a rigid material, such as metal or stone, or it can be a flexible or semi-flexible material, such as sponge, EVA, leather, or fabric composite material used in the production of insoles. This application does not further limit the specific material of the blank. Those skilled in the art can adapt the vibration drive module and the tool 700 parameters with corresponding power according to the actual cutting requirements.

[0016] Specifically, for circumferential drive components, such as Figures 2-11 As shown, it includes: A slide table 100 is provided with a sliding mating surface 110 and a first protrusion 120. The sliding mating surface 110 is used to slide with a slide rail. In this embodiment, the sliding mating surface 110 slides with a y-axis sliding rail 20. Preferably, the sliding mating surface 110 overlaps the y-axis sliding rail 20 so that the circumferential drive assembly can be hoisted onto the y-axis sliding rail 20. The first protrusion 120 is provided with a relief groove 121 and a first abutting surface 131. The first abutting surface 131 is perpendicular to the sliding mating surface 110. A base 200 has a second protrusion 210. One side of the second protrusion 210 has a second abutment surface 211 that abuts against a first abutment surface 131. A rotary drive module 500 is located on the other side of the second protrusion 210. A through hole 212 is provided on the second protrusion 210, through which the output shaft of the rotary drive module 500 passes. A clearance groove 121 is used to avoid the output shaft of the rotary drive module 500. The base 200 is provided with an annular groove 220 and a first mounting hole 202. The annular groove 220 and the second protrusion 210 are respectively located on both sides of the base 200. The annular groove 220 is perpendicular to the second abutment surface 211. An annular tooth 310 is rotatably sleeved on the annular groove 220. The axis of the first mounting hole 202 is parallel to the second abutment surface 211. A transmission member 230 passes through the first mounting hole 202. The output shaft of the rotary drive module 500 is connected to the annular tooth 310 through the transmission member 230. The housing 400 has a third abutment surface 410, a second mounting hole 420, and a mounting part. The third abutment surface 410 abuts against the annular tooth 310, and the housing 400 is connected to the annular tooth 310 through the third abutment surface 410. The mounting part is used to install a vibration drive module. The axis of the second mounting hole 420 is perpendicular to the third abutment surface 410. The second mounting hole 420 is used to pass through a vibration shaft 600. The vibration shaft 600 and the second mounting hole 420 are axially slidingly fitted. A cutter 700 is provided at the free end of the vibration shaft 600. The fixed end of the vibration shaft 600 is used for transmission connection with the vibration drive module, so as to realize that the vibration drive module drives the vibration shaft 600 to reciprocate along the axis of the second mounting hole 420.

[0017] Based on the above structural design, firstly, through the three-body abutment fit structure of slide 100, base 200, and housing 400, a precision transmission chain is established, consisting of sliding mating surface 110, first abutment surface 131, second abutment surface 211, annular groove 220, annular tooth 310, third abutment surface 410, and second mounting hole 420. This allows the final rotation axis of the tool 700 (the axis of the second mounting hole 420) to directly originate from the manufacturing precision of slide 100, base 200, and housing 400, bypassing the assembly coaxiality error of intermediate transmission components. This achieves a precision transmission effect of one-time clamping and direct reference, effectively avoiding the axis offset problem caused by multi-stage transmission connection structures, and achieving the technical effect of a short precision transmission chain and high rotation axis alignment accuracy. Secondly, base 200 is rigidly connected to slide as a fixed end. On the 100, the housing 400, as the rotating end, is rotatably fitted onto the annular groove 220 of the base 200 via the annular tooth 310. This decouples the rotational motion of the tool 700 from its linear vibration in physical space, causing the center of gravity of the entire assembly to move significantly closer to the sliding mating surface 110 of the slide table 100. This significantly reduces the overturning moment during high-speed motion in the xy plane and improves the dynamic following accuracy under acceleration and deceleration conditions, achieving a compact structure and good dynamic performance. Furthermore, based on "surface contact" as the positioning and connection method (the first contact surface 131 abuts against the second contact surface 211, and the third contact surface 410 abuts against the annular tooth 310), the large-area planar contact automatically establishes a spatial orthogonal relationship at the moment of locking, greatly reducing the reliance on manual professional adjustment skills during assembly and facilitating the assembly and maintenance of the equipment. Secondly, by placing the annular groove 220 on the side of the base 200 away from the slide table 100, the rotation angle of the housing 400 around the z-axis is no longer limited by the structural interference of the slide table 100 body, which can achieve a larger rotation stroke and is conducive to cutting complex irregular curves. At the same time, in conjunction with the avoidance groove 121 to avoid the output shaft of the rotary drive module 500, the compact arrangement of the circumferential drive components is achieved in a limited space. This avoids interference with the slide table structure and allows the transmission path between the rotary drive module 500 and the annular gear 310 to be as short as possible, reducing transmission errors, improving space utilization, and facilitating the miniaturization design of the equipment. Furthermore, based on the cooperation between the transmission component 230, the annular groove 220, and the annular tooth 310, the axis of the transmission component 230 is parallel to the second contact surface 211, and the annular tooth 310 is driven tangentially. This allows the radial force of the gear meshing to be offset by the rigidity of the groove wall of the annular groove 220, and the axial force to be limited by the upper and lower end faces of the annular groove 220. This enables the annular tooth 310 to have a self-centering and centering tendency when rotating at high speed, and prevents the annular tooth 310 from moving up and down along the z-axis due to tooth flank clearance, thus ensuring the positional stability of the vibration shaft 600 and the tool 700 in the z-axis direction.

[0018] It should be noted that the vibration drive module driving the vibration shaft 600 to reciprocate along the axis of the second mounting hole 420 is existing technology. Specifically, it can be achieved through cam transmission, eccentric wheel transmission or electromagnetic induction transmission. Those skilled in the art can select the appropriate structural form according to the actual required vibration frequency and stroke, which will not be elaborated here.

[0019] In some embodiments, such as Figures 6-9 As shown, to facilitate quick assembly and disassembly of the annular gear 310, the housing 400, and the base 200, the annular groove 220 can be provided, including an upper groove body 221 and a lower groove body 222. The upper groove wall and the bottom wall of the annular groove 220 are located on the upper groove body 221, and the lower groove wall of the annular groove 220 is located on the lower groove body 222. The upper groove body 221 and the lower groove body 222 are detachably connected. The upper groove body 221 and the lower groove body 222 cooperate to restrict the annular gear 310, so that the annular gear 310 can rotate stably and is easy to disassemble and maintain.

[0020] In some embodiments, such as Figures 6-9 As shown, to reduce the influence of the self-weight of the circumferential drive assembly on the transmission of the annular gear 310, the circumferential drive assembly can be further configured to include an annular cover plate 330 and a sliding body 320. The annular gear 310 is located between the annular cover plate 330 and the housing 400. The annular cover plate 330 is detachably connected to the housing 400 via the annular gear 310, so as to realize the synchronous circumferential rotation of the annular cover plate 330, the annular gear 310 and the housing 400. The sliding body 320 has an annular structure and is sleeved in the annular groove 220. The sliding body 320 and the annular gear 310 are connected in a circular direction. The components 10 are arranged sequentially from the inside out. The annular cover plate 330 overlaps with the sliding body 320 to axially limit the annular tooth 310, preventing the annular tooth 310 from dislodging from the annular groove 220 during rotation. Simultaneously, the weight of the housing 400 is directly transferred to the sliding body 320 through the annular cover plate 330. The sliding body 320 primarily bears the weight of the housing 400, and subsequently transfers the weight directly to the slide table 100 through the base 200. This reduces the force on the gear meshing parts, lowers the wear rate of the annular tooth, and extends the service life of the circumferential drive assembly. Preferably, the teeth of the annular tooth 310 protrude from the annular cover plate 330, facilitating stable meshing between the transmission component 230 and the teeth of the annular tooth 310, preventing structural interference from the annular cover plate 330, and ensuring a smooth and reliable transmission process.

[0021] In some embodiments, to stably transmit circumferential rotational power to the housing 400 and improve ease of assembly and disassembly, such as Figures 6-8As shown, first connecting holes 331 can be provided on the annular cover plate 330 and the annular tooth 310, respectively. The first connecting holes 331 are used to pass through the first connecting member, which is used to connect the annular cover plate 330 and the annular tooth 310. Second connecting holes 311 are provided on the annular tooth 310 and the housing 400, respectively. The second connecting holes 311 are used to pass through the second connecting member, which is used to connect the annular tooth 310 and the housing 400. The axes of the first connecting holes 331, the second connecting holes 311 and the annular tooth 310 are parallel to each other. Based on the above structural design, the first connecting member bears the transmission of circumferential rotational power, avoiding the loosening of the connection due to torque. At the same time, during disassembly and maintenance, only the first connecting member and the second connecting member need to be removed in sequence to separate the annular cover plate 330, the annular tooth 310 and the housing 400, without the need to disassemble the circumferential drive assembly as a whole, further reducing the maintenance difficulty.

[0022] In some embodiments, first connecting holes 331 may be provided on the annular cover plate 330 and the annular teeth 310, respectively. The first connecting holes 331 are used to pass through the first connecting holes 331 on the annular cover plate 330 and the annular teeth 310. After the first connecting member passes through the first connecting holes 331 on the annular cover plate 330 and the annular teeth 310, the first connecting member is connected to the housing 400. Based on the cooperation between the annular cover plate 330 and the housing 400, the sliding body 320 is clamped and fixed. The annular cover plate 330, the annular teeth 310, and the housing 400 are axially tightened into a rigid whole by the first connecting member. The clamping force between the annular cover plate 330 and the housing 400 is used to press the sliding body 320 tightly against the end face of the annular groove 220, eliminating the gap between the sliding body 320 and the annular groove 220. This not only prevents the ring tooth 310 from floating up and down during high-speed rotation, but also locks the absolute position of the vibration shaft 600 and the tool 700 in the z-axis direction. This ensures that the depth of the tool 700 into the workpiece remains constant during high-speed vibration cutting, greatly improving the flatness and thickness consistency of the cut surface. In addition, the circumferential transmission relies not only on the first connecting member, but also on the end face friction between the annular cover plate 330, the ring tooth 310, and the housing 400. This reduces the shear load and fatigue fracture risk of the first connecting member. Under high-frequency forward and reverse rotation (frequent reversal of the tool 700), the end face friction structure has no transmission gap, resulting in a more direct response. This significantly improves the sensitivity and acceleration of the tool 700's cutting edge direction, making it very suitable for cutting complex small curvature curves.Based on the structural design of the above example, it is preferable to set the sliding body 320 as an elastic damping ring structure. The sliding body 320 radially abuts against the inner wall of the annular groove 220, and axially abuts against the inner wall of the annular groove 220. Based on the cooperation of the upper groove 221 and the lower groove 222, the axial abutment force between the sliding body 320 and the annular groove 220 can be adjusted, allowing the sliding body 320 to rotate circumferentially under low resistance while preventing the tool 700 from axially moving along the z-axis. Based on the cooperation of the annular cover plate 330 and the housing 400, a slight radial deformation can be caused to the sliding body 320, allowing the annular tooth 310 to radially abut against the inner wall of the annular groove 220 through the sliding body 320, preventing the tool 700 from radially moving. At the same time, the sliding body 320 in the annular groove 220 and the annular tooth 310... The radial damping between them effectively suppresses the vibration (chatter) of the tool 700 caused by uneven hardness of the blank during the cutting process, acting as a mechanical filter to further protect the cutting edge of the tool 700 and improve the surface finish of the cut. In addition, during the assembly process, the annular cover plate 330, the annular tooth 310, and the housing 400 form a floating centering mechanism. Even if there is a slight machining ellipticity in the annular groove 220 and the annular tooth 310, when the annular cover plate 330 and the housing 400 are clamped from both ends, the sliding body 320 will generate a small amount of adaptive deformation or displacement in the radial direction, so that the annular tooth 310 automatically finds the optimal radial rotation center when rotating, compensating for the roundness error of the annular groove 220, making the actual rotation axis infinitely close to the theoretical z-axis, and ensuring the accuracy of the cutting edge direction control.

[0023] In other embodiments, to achieve a base 200 acting as the stator and the ring gear 310 as the rotor, reducing the cutting edge adjustment resistance of the tool 700, a clearance fit can be provided between the sliding body 320 and the ring gear 310, or between the sliding body 320 and the upper groove 221. This facilitates compensation for manufacturing errors through fit tolerances during assembly, ensuring smooth rotation of the ring gear 310 while avoiding excessive rigid constraint that could cause jamming of the ring gear 310, thus guaranteeing the smoothness and accuracy stability of the circumferential rotation process. In some examples, to improve the smoothness of the ring gear 310's rotation and reduce frictional loss, the sliding body 320 is made of a self-lubricating wear-resistant material. Low-friction rotation can be achieved with minimal or no additional grease, adapting to long-term, high-frequency cutting edge adjustment operations. This also reduces contamination from lubricating grease, preventing grease from adsorbing cutting debris and affecting transmission accuracy.

[0024] In some embodiments, to improve the ease of disassembly and assembly of the equipment, third connecting holes 201 can be provided on the base 200 and the upper groove 221, respectively. The third connecting holes 201 are used to pass through third connecting members, which are used to connect the base 200 and the upper groove 221. The axes of the third connecting holes 201 and the ring gear 310 are parallel to each other. When it is necessary to maintain or replace the ring gear 310 or the sliding body 320, the upper groove 221 can be separated simply by removing the third connecting member, and the disassembly and replacement of internal parts can be completed quickly without removing the entire circumferential drive assembly from the slide table 100, which further reduces the time cost and operation difficulty of equipment maintenance.

[0025] In some embodiments, to improve the connection stability between the slide 100 and the base 200, such as Figure 6 , Figure 10 and Figure 11 As shown, a fourth connecting hole 213 can be provided on the first abutting surface 131 and the second abutting surface 211, respectively. The fourth connecting hole 213 is used to pass through a fourth connector, which is used to connect the first protrusion 120 and the second protrusion 210. The fourth connecting hole 213 is perpendicular to the first abutting surface 131. Based on the mating positioning and fastener locking method, the rigidity of the connection between the slide table 100 and the base 200 is ensured, and the mating accuracy of the first abutting surface 131 and the second abutting surface 211 is maintained, avoiding the connection from becoming loose after long-term operation and affecting the reference accuracy.

[0026] It should be noted that the first, second, third, and fourth connectors are all existing technologies, and their specific structures can be standard fasteners such as bolts and screws. Those skilled in the art can select the corresponding specifications according to actual load-bearing requirements, which will not be elaborated here.

[0027] In some embodiments, to ensure the accuracy and stability of the reciprocating motion of the vibration shaft 600, a guide bushing is provided in the second mounting hole 420. The inner hole of the guide bushing is slidably fitted with the vibration shaft 600. The guide bushing is made of wear-resistant and low-friction material, which can provide stable linear motion guidance for the vibration shaft 600, avoid radial wobble during the reciprocating motion of the vibration shaft 600, reduce the wear rate of the mating surface, extend the service life of the core moving parts, and reduce the frequency of maintenance and replacement.

[0028] In some embodiments, to prevent cutting debris from entering the mating gap of the second mounting hole 420 and affecting the sliding of the vibration shaft 600, a dustproof seal is provided at the free end of the second mounting hole 420. The dustproof seal is sleeved on the outside of the vibration shaft 600 and can block the cutting debris and dust from entering the mating gap, ensuring that the vibration shaft 600 is always in a good lubrication and movement state, extending the service life of the component, and maintaining vibration accuracy.

[0029] In some embodiments, to reduce the assembly difficulty between the slide table 100 and the base 200 and improve structural stability, a snap-fit ​​part 214 can be provided on the second protrusion 210, and a snap-fit ​​groove 130 can be provided on the first protrusion 120. The snap-fit ​​groove 130 and the snap-fit ​​part 214 are matched, and the bottom wall of the snap-fit ​​groove 130 serves as the first abutment surface 131. During assembly, the snap-fit ​​part 214 and the snap-fit ​​groove 130 can be used to complete the pre-positioning first, and then the subsequent locking and fixing operation can be performed. There is no need for manual support and alignment throughout the process, which greatly reduces the operation difficulty of single-person assembly. At the same time, the pre-positioning structure can also further limit the relative displacement of the base 200 on the slide table 100, improve the impact resistance stability of the overall structure, avoid the base 200 from being accidentally displaced during operation, and ensure the accuracy and stability of the rotation axis of the tool 700.

[0030] In some embodiments, to improve the rotational control accuracy of the cutting edge angle of the tool 700, a first transmission gear 510 can be provided on the output shaft of the rotary drive module 500, a second transmission gear 231 is provided at one end of the transmission component 230, and a third transmission gear 232 is provided at the other end of the transmission component 230. The first transmission gear 510 meshes with the second transmission gear 231, and the third transmission gear 232 meshes with the ring gear 310. By increasing the transmission reduction ratio through two-stage gear transmission and in conjunction with high-precision gear machining technology, the rotational angle control accuracy of the rotary drive module 500 can be further amplified, thereby improving the rotational angle control resolution of the ring gear 310 and the housing 400, and ultimately achieving precise control of the cutting edge direction of the tool 700. This is especially suitable for cutting irregular insoles with high requirements for contour curve accuracy.

[0031] In some embodiments, to improve space utilization, the base 200 and the second protrusion 210 can be configured in a T-shape. The second protrusion 210 is vertically protruding and positioned at the center of the base 200 near the slide table 100. The rotary drive module 500 is installed on one side of the second protrusion 210, between the slide table 100 and the base 200. The two-stage gear transmission structure is folded in a U-shape on the base. The overall structure of the axial sliding component is evenly distributed along the z-axis, which can ensure the force balance of the circumferential drive component and make full use of the space on both sides of the second protrusion 210 to arrange the rotary drive module and the two-stage gear transmission structure respectively. There is no need to expand the lateral installation size of the equipment, which further improves the space utilization of the equipment, meets the needs of miniaturization design, and allows the equipment to achieve a larger cutting coverage area in a limited space.

[0032] In some embodiments, to ensure the accuracy of the cutting edge direction adjustment of the tool 700, the vibration shaft 600 and the annular groove 220 can be coaxially arranged so that the rotation center of the tool 700 always coincides with the rotation center of the annular tooth 310. This avoids the generation of additional rotational inertia due to eccentric setting, ensures a smoother rotation process of the housing 400, and eliminates the positional deviation of the tool 700 caused by eccentric rotation. This further ensures the positional accuracy of the tool 700 after the cutting edge turns, and improves the machining accuracy of the final cutting contour.

[0033] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0034] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise expressly specified and limited, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Unless otherwise expressly specified and limited, the terms "installed," "connected," "joined," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0035] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A circumferential drive component, characterized in that, include: A slide table is provided with a sliding mating surface and a first protrusion. The sliding mating surface is used to slide with a slide rail. The first protrusion is provided with a relief groove and a first abutting surface. The first abutting surface is perpendicular to the sliding mating surface. A base is provided with a second protrusion. A second abutment surface is provided on one side of the second protrusion, which abuts against a first abutment surface. A rotary drive module is provided on the other side of the second protrusion. A through hole is provided on the second protrusion, through which the output shaft of the rotary drive module passes. A clearance groove is provided to avoid the output shaft of the rotary drive module. An annular groove and a first mounting hole are provided on the base. The annular groove and the second protrusion are located on opposite sides of the base. The annular groove is perpendicular to the second abutment surface. An annular tooth is rotatably sleeved on the annular groove. The axis of the first mounting hole is parallel to the second abutment surface. A transmission component passes through the first mounting hole. The output shaft of the rotary drive module is connected to the annular tooth through the transmission component. The housing has a third abutment surface, a second mounting hole, and a mounting part. The third abutment surface abuts against an annular tooth, and the housing is connected to the annular tooth through the third abutment surface. The mounting part is used to mount a vibration drive module. The axis of the second mounting hole is perpendicular to the third abutment surface. The second mounting hole is used to pass through a vibration shaft. The vibration shaft and the second mounting hole are axially slidingly fitted. A cutter is provided at the free end of the vibration shaft. The fixed end of the vibration shaft is used for transmission connection with the vibration drive module, so as to realize that the vibration drive module drives the vibration shaft to reciprocate along the axis of the second mounting hole.

2. The circumferential drive assembly according to claim 1, characterized in that, The annular groove includes an upper groove body and a lower groove body. The upper groove wall and the bottom wall of the annular groove are located on the upper groove body, and the lower groove wall of the annular groove is located on the lower groove body. The upper groove body and the lower groove body are detachably connected.

3. A circumferential drive assembly according to claim 2, characterized in that, The circumferential drive assembly also includes an annular cover plate and a sliding body. The annular teeth are located between the annular cover plate and the housing. The annular cover plate is detachably connected to the housing through the annular teeth to achieve synchronous circumferential rotation of the annular cover plate, the annular teeth and the housing. The sliding body is an annular structure and is fitted inside the annular groove. The sliding body and the annular teeth are arranged sequentially from the inside to the outside. The annular cover plate overlaps with the sliding body.

4. A circumferential drive assembly according to claim 3, characterized in that, The annular cover plate and the annular teeth are respectively provided with first connecting holes. The first connecting holes are used to pass through first connecting members, and the first connecting members are used to connect the annular cover plate and the annular teeth. The annular teeth and the shell are respectively provided with second connecting holes. The second connecting holes are used to pass through second connecting members, and the second connecting members are used to connect the annular teeth and the shell. The axes of the first connecting holes, the second connecting holes and the annular teeth are parallel to each other. And / or, the sliding body and the annular tooth are in clearance fit, or the sliding body and the upper groove are in clearance fit.

5. A circumferential drive assembly according to claim 3, characterized in that, The base and the upper groove are respectively provided with a third connecting hole. The third connecting hole is used to pass through a third connecting member. The third connecting member is used to connect the base and the upper groove. The axes of the third connecting hole and the ring tooth are parallel to each other. And / or, the annular cover plate and the annular teeth are respectively provided with first connecting holes, the first connecting holes are used to pass through the first connecting holes, the first connecting piece is connected to the shell after passing through the first connecting holes on the annular cover plate and the annular teeth, and the sliding body is an elastic damping ring structure.

6. A circumferential drive assembly according to any one of claims 1 to 5, characterized in that, The first abutting surface and the second abutting surface are respectively provided with a fourth connecting hole. The fourth connecting hole is used to pass through a fourth connecting member. The fourth connecting member is used to connect the first protrusion and the second protrusion. The fourth connecting hole is perpendicular to the first abutting surface.

7. A circumferential drive assembly according to claim 6, characterized in that, The second protrusion is provided with a snap-fit ​​part, and the first protrusion is provided with a snap-fit ​​groove. The snap-fit ​​groove and the snap-fit ​​part are matched, and the bottom wall of the snap-fit ​​groove serves as the first abutment surface.

8. A circumferential drive assembly according to any one of claims 1 to 5, characterized in that, The output shaft of the rotary drive module is provided with a first transmission gear, one end of the transmission component is provided with a second transmission gear, and the other end of the transmission component is provided with a third transmission gear. The first transmission gear meshes with the second transmission gear, and the third transmission gear meshes with a ring gear.

9. A circumferential drive assembly according to any one of claims 1 to 5, characterized in that, The base and the second protrusion have a T-shaped structure; And / or, the vibration shaft and the annular groove are coaxially arranged.

10. A cutting device, characterized in that, Includes the circumferential drive component as described in any one of claims 1 to 9.

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